Change file watcher log message to debug

This allows explicitly ignoring changes to certain
files or directories, even if the changed file ends
up matching `watch_patterns`. The default value,
`build/**/*` will ensure that changes in the build
directory will not trigger a duplicate rebuild.

Resolves #143
Resolves #215

.cargo/config.toml

@@ -1,5 +1,4 @@
-[target.x86_64-pc-windows-msvc]
-linker = "rust-lld"
-
-[target.aarch64-pc-windows-msvc]
-linker = "rust-lld"
+# statically link the C runtime so the executable does not depend on
+# that shared/dynamic library.
+[target.'cfg(all(target_env = "msvc", target_os = "windows"))']
+rustflags = ["-C", "target-feature=+crt-static"]

.editorconfig

@@ -0,0 +1,2 @@
+[*.md]
+trim_trailing_whitespace = false

.github/workflows/build.yaml

@@ -4,13 +4,16 @@ on:
   pull_request:
   push:
     paths-ignore:
-      - '*.md'
-      - 'LICENSE*'
+      - "*.md"
+      - "LICENSE*"
   workflow_dispatch:
 
+permissions:
+  # For npm publish provenance
+  id-token: write
+
 env:
   BUILD_PROFILE: release-lto
-  CARGO_TARGET_DIR: target
   CARGO_INCREMENTAL: 0
 
 jobs:
@@ -33,9 +36,9 @@ jobs:
       - name: Cache Rust workspace
         uses: Swatinem/rust-cache@v2
       - name: Cargo check
-        run: cargo check --all-features --all-targets
+        run: cargo check --all-targets --all-features
       - name: Cargo clippy
-        run: cargo clippy --all-features --all-targets
+        run: cargo clippy --all-targets --all-features
 
   fmt:
     name: Format
@@ -71,7 +74,6 @@ jobs:
 
   test:
     name: Test
-    if: 'false' # No tests yet
     strategy:
       matrix:
         platform: [ ubuntu-latest, windows-latest, macos-latest ]
@@ -90,7 +92,7 @@ jobs:
       - name: Cache Rust workspace
         uses: Swatinem/rust-cache@v2
       - name: Cargo test
-        run: cargo test --release --all-features
+        run: cargo test --release --features all
 
   build-cli:
     name: Build objdiff-cli
@@ -150,7 +152,7 @@ jobs:
           python3 -m venv .venv
           . .venv/bin/activate
           echo PATH=$PATH >> $GITHUB_ENV
-          pip install ziglang==0.13.0 cargo-zigbuild==0.19.1
+          pip install ziglang==0.13.0.post1 cargo-zigbuild==0.19.8
       - name: Setup Rust toolchain
         uses: dtolnay/rust-toolchain@stable
         with:
@@ -161,15 +163,15 @@ jobs:
           key: ${{ matrix.target }}
       - name: Cargo build
         run: >
-          cargo ${{ matrix.build }} --profile ${{ env.BUILD_PROFILE }} --target ${{ matrix.target }} 
+          cargo ${{ matrix.build }} --profile ${{ env.BUILD_PROFILE }} --target ${{ matrix.target }}
           --bin ${{ env.CARGO_BIN_NAME }} --features ${{ matrix.features }}
       - name: Upload artifacts
         uses: actions/upload-artifact@v4
         with:
           name: ${{ env.CARGO_BIN_NAME }}-${{ matrix.name }}
           path: |
-            ${{ env.CARGO_TARGET_DIR }}/${{ matrix.target }}/${{ env.BUILD_PROFILE }}/${{ env.CARGO_BIN_NAME }}
-            ${{ env.CARGO_TARGET_DIR }}/${{ matrix.target }}/${{ env.BUILD_PROFILE }}/${{ env.CARGO_BIN_NAME }}.exe
+            target/${{ matrix.target }}/${{ env.BUILD_PROFILE }}/${{ env.CARGO_BIN_NAME }}
+            target/${{ matrix.target }}/${{ env.BUILD_PROFILE }}/${{ env.CARGO_BIN_NAME }}.exe
           if-no-files-found: error
 
   build-gui:
@@ -180,21 +182,26 @@ jobs:
       matrix:
         include:
           - platform: ubuntu-latest
-            target: x86_64-unknown-linux-gnu
+            target: x86_64-unknown-linux-gnu.2.31
+            target_base: x86_64-unknown-linux-gnu
             name: linux-x86_64
             packages: libgtk-3-dev
+            build: zigbuild
             features: default
           - platform: windows-latest
             target: x86_64-pc-windows-msvc
             name: windows-x86_64
+            build: build
             features: default
           - platform: macos-latest
             target: x86_64-apple-darwin
             name: macos-x86_64
+            build: build
             features: default
           - platform: macos-latest
             target: aarch64-apple-darwin
             name: macos-arm64
+            build: build
             features: default
       fail-fast: false
     runs-on: ${{ matrix.platform }}
@@ -206,38 +213,70 @@ jobs:
           sudo apt-get -y install ${{ matrix.packages }}
       - name: Checkout
         uses: actions/checkout@v4
+      - name: Install cargo-zigbuild
+        if: matrix.build == 'zigbuild'
+        run: |
+          python3 -m venv .venv
+          . .venv/bin/activate
+          echo PATH=$PATH >> $GITHUB_ENV
+          pip install ziglang==0.13.0.post1 cargo-zigbuild==0.19.8
       - name: Setup Rust toolchain
         uses: dtolnay/rust-toolchain@stable
         with:
-          targets: ${{ matrix.target }}
+          targets: ${{ matrix.target_base || matrix.target }}
       - name: Cache Rust workspace
         uses: Swatinem/rust-cache@v2
         with:
           key: ${{ matrix.target }}
       - name: Cargo build
         run: >
-          cargo build --profile ${{ env.BUILD_PROFILE }} --target ${{ matrix.target }} 
+          cargo ${{ matrix.build }} --profile ${{ env.BUILD_PROFILE }} --target ${{ matrix.target }}
           --bin ${{ env.CARGO_BIN_NAME }} --features ${{ matrix.features }}
       - name: Upload artifacts
         uses: actions/upload-artifact@v4
         with:
           name: ${{ env.CARGO_BIN_NAME }}-${{ matrix.name }}
           path: |
-            ${{ env.CARGO_TARGET_DIR }}/${{ matrix.target }}/${{ env.BUILD_PROFILE }}/${{ env.CARGO_BIN_NAME }}
-            ${{ env.CARGO_TARGET_DIR }}/${{ matrix.target }}/${{ env.BUILD_PROFILE }}/${{ env.CARGO_BIN_NAME }}.exe
+            target/${{ matrix.target_base || matrix.target }}/${{ env.BUILD_PROFILE }}/${{ env.CARGO_BIN_NAME }}
+            target/${{ matrix.target_base || matrix.target }}/${{ env.BUILD_PROFILE }}/${{ env.CARGO_BIN_NAME }}.exe
           if-no-files-found: error
 
-  release:
-    name: Release
-    if: startsWith(github.ref, 'refs/tags/')
+  build-wasm:
+    name: Build objdiff-wasm
     runs-on: ubuntu-latest
-    needs: [ build-cli, build-gui ]
-    permissions:
-      contents: write
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-      - name: Check git tag against Cargo version
+      - name: Setup Rust toolchain
+        uses: dtolnay/rust-toolchain@nightly
+        with:
+          components: rust-src
+      - name: Cache Rust workspace
+        uses: Swatinem/rust-cache@v2
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: lts/*
+      - name: Install dependencies
+        run: npm -C objdiff-wasm ci
+      - name: Build
+        run: npm -C objdiff-wasm run build
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: wasm
+          path: objdiff-wasm/dist/
+          if-no-files-found: error
+
+  check-version:
+    name: Check package versions
+    if: startsWith(github.ref, 'refs/tags/')
+    runs-on: ubuntu-latest
+    needs: [ build-cli, build-gui, build-wasm ]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Check git tag against package versions
         shell: bash
         run: |
           set -eou pipefail
@@ -249,9 +288,24 @@ jobs:
             echo "::error::Git tag doesn't match the Cargo version! ($tag != $version)"
             exit 1
           fi
+          version="v$(jq -r .version objdiff-wasm/package.json)"
+          if [ "$tag" != "$version" ]; then
+            echo "::error::Git tag doesn't match the npm version! ($tag != $version)"
+            exit 1
+          fi
+
+  release-github:
+    name: Release (GitHub)
+    if: startsWith(github.ref, 'refs/tags/')
+    runs-on: ubuntu-latest
+    needs: [ check-version ]
+    permissions:
+      contents: write
+    steps:
       - name: Download artifacts
         uses: actions/download-artifact@v4
         with:
+          pattern: objdiff-*
           path: artifacts
       - name: Rename artifacts
         working-directory: artifacts
@@ -281,3 +335,53 @@ jobs:
           files: out/*
           draft: true
           generate_release_notes: true
+
+  release-cargo:
+    name: Release (Cargo)
+    if: 'false' # TODO re-enable when all dependencies are published
+    runs-on: ubuntu-latest
+    needs: [ check-version ]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Setup Rust toolchain
+        uses: dtolnay/rust-toolchain@stable
+      - name: Publish
+        env:
+          CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}
+        run: cargo publish -p objdiff-core
+
+  release-npm:
+    name: Release (npm)
+    if: startsWith(github.ref, 'refs/tags/')
+    runs-on: ubuntu-latest
+    needs: [ check-version ]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: lts/*
+          registry-url: 'https://registry.npmjs.org'
+      - name: Download artifacts
+        uses: actions/download-artifact@v4
+        with:
+          name: wasm
+          path: objdiff-wasm/dist
+      - name: Publish
+        working-directory: objdiff-wasm
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+        run: |
+          set -euo pipefail
+          version=$(jq -r '.version' package.json)
+          tag="latest"
+          # Check for prerelease by looking for a dash
+          case "$version" in
+            *-*)
+              tag=$(echo "$version" | sed -e 's/^[^-]*-//' -e 's/\..*$//')
+              ;;
+          esac
+          echo "Publishing version $version with tag '$tag'..."
+          npm publish --provenance --access public --tag "$tag"

.pre-commit-config.yaml

@@ -0,0 +1,36 @@
+# See https://pre-commit.com for more information
+# See https://pre-commit.com/hooks.html for more hooks
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v5.0.0
+    hooks:
+      - id: trailing-whitespace
+        args: [--markdown-linebreak-ext=md]
+      - id: end-of-file-fixer
+      - id: fix-byte-order-marker
+      - id: check-yaml
+      - id: check-added-large-files
+  - repo: local
+    hooks:
+      - id: cargo-fmt
+        name: cargo fmt
+        description: Run cargo fmt on all project files.
+        language: system
+        entry: cargo
+        args: ["+nightly", "fmt", "--all"]
+        pass_filenames: false
+      - id: cargo clippy
+        name: cargo clippy
+        description: Run cargo clippy on all project files.
+        language: system
+        entry: cargo
+        args: ["+nightly", "clippy", "--all-targets", "--all-features"]
+        pass_filenames: false
+      - id: cargo-deny
+        name: cargo deny
+        description: Run cargo deny on all project files.
+        language: system
+        entry: cargo
+        args: ["deny", "check"]
+        pass_filenames: false
+        always_run: true

Cargo.toml

@@ -3,8 +3,9 @@ members = [
     "objdiff-cli",
     "objdiff-core",
     "objdiff-gui",
+    "objdiff-wasm",
 ]
-resolver = "2"
+resolver = "3"
 
 [profile.release-lto]
 inherits = "release"
@@ -13,9 +14,9 @@ strip = "debuginfo"
 codegen-units = 1
 
 [workspace.package]
-version = "2.7.1"
+version = "3.0.0"
 authors = ["Luke Street <luke@street.dev>"]
-edition = "2021"
+edition = "2024"
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/encounter/objdiff"
-rust-version = "1.81"
+rust-version = "1.88"

README.md

@@ -16,11 +16,12 @@ Features:
 
 Supports:
 
-- PowerPC 750CL (GameCube, Wii)
-- MIPS (N64, PS1, PS2, PSP)
-- x86 (COFF only at the moment)
 - ARM (GBA, DS, 3DS)
-- ARM64 (Switch, experimental)
+- ARM64 (Switch)
+- MIPS (N64, PS1, PS2, PSP)
+- PowerPC (GameCube, Wii, PS3, Xbox 360)
+- SuperH (Saturn, Dreamcast)
+- x86, x86_64 (PC)
 
 See [Usage](#usage) for more information.
 
@@ -105,6 +106,9 @@ file as well. You can then add `objdiff.json` to your `.gitignore` to prevent it
     "*.txt",
     "*.json"
   ],
+  "ignore_patterns": [
+    "build/**/*"
+  ],
   "units": [
     {
       "name": "main/MetroTRK/mslsupp",
@@ -140,18 +144,22 @@ It's unlikely you'll want to disable this, unless you're using an external tool
 If any of these files change, objdiff will automatically rebuild the objects and re-compare them.  
 If not specified, objdiff will use the default patterns listed above.
 
+`ignore_patterns` _(optional)_: A list of glob patterns to explicitly ignore when watching for changes.  
+([Supported syntax](https://docs.rs/globset/latest/globset/#syntax))  
+If not specified, objdiff will use the default patterns listed above.
+
 `units` _(optional)_: If specified, objdiff will display a list of objects in the sidebar for easy navigation.
 
 > `name` _(optional)_: The name of the object in the UI. If not specified, the object's `path` will be used.
-> 
+>
 > `target_path`: Path to the "target" or "expected" object from the project root.  
 > This object is the **intended result** of the match.
-> 
+>
 > `base_path`: Path to the "base" or "actual" object from the project root.  
 > This object is built from the **current source code**.
-> 
+>
 > `metadata.auto_generated` _(optional)_: Hides the object from the object list, but still includes it in reports.
-> 
+>
 > `metadata.complete` _(optional)_: Marks the object as "complete" (or "linked") in the object list.  
 > This is useful for marking objects that are fully decompiled. A value of `false` will mark the object as "incomplete".
 
@@ -173,6 +181,21 @@ $ cargo install --locked --git https://github.com/encounter/objdiff.git objdiff-
 
 The binaries will be installed to `~/.cargo/bin` as `objdiff` and `objdiff-cli`.
 
+## Installing `pre-commit`
+
+When contributing, it's recommended to install `pre-commit` to automatically run the linter and formatter before a commit.
+
+[`uv`](https://github.com/astral-sh/uv#installation) is recommended to manage Python version and tools.
+
+Rust nightly is required for `cargo +nightly fmt` and `cargo +nightly clippy`.
+
+```shell
+$ cargo install --locked cargo-deny
+$ rustup toolchain install nightly
+$ uv tool install pre-commit
+$ pre-commit install
+```
+
 ## License
 
 Licensed under either of

config.schema.json

@@ -74,6 +74,16 @@
         "*.json"
       ]
     },
+    "ignore_patterns": {
+      "type": "array",
+      "description": "List of glob patterns to explicitly ignore when watching for changes.\nFiles matching these patterns will not trigger a rebuild.\nSupported syntax: https://docs.rs/globset/latest/globset/#syntax",
+      "items": {
+        "type": "string"
+      },
+      "default": [
+        "build/**/*"
+      ]
+    },
     "objects": {
       "type": "array",
       "description": "Use units instead.",
@@ -175,6 +185,10 @@
           "type": "boolean",
           "description": "If true, objdiff will run the build command with the context file as an argument to generate it.",
           "default": false
+        },
+        "preset_id": {
+          "type": "number",
+          "description": "The decomp.me preset ID to use for the scratch.\nCompiler and flags in the config will take precedence over the preset, but the preset is useful for organizational purposes."
         }
       },
       "required": [

deny.toml

@@ -73,6 +73,7 @@ ignore = [
     #{ id = "RUSTSEC-0000-0000", reason = "you can specify a reason the advisory is ignored" },
     #"a-crate-that-is-yanked@0.1.1", # you can also ignore yanked crate versions if you wish
     #{ crate = "a-crate-that-is-yanked@0.1.1", reason = "you can specify why you are ignoring the yanked crate" },
+    { id = "RUSTSEC-2024-0436", reason = "Unmaintained paste crate is an indirect dependency" },
 ]
 # If this is true, then cargo deny will use the git executable to fetch advisory database.
 # If this is false, then it uses a built-in git library.
@@ -101,8 +102,8 @@ allow = [
     "Zlib",
     "0BSD",
     "OFL-1.1",
-    "LicenseRef-UFL-1.0",
-    "OpenSSL",
+    "Ubuntu-font-1.0",
+    "CDLA-Permissive-2.0",
 ]
 # The confidence threshold for detecting a license from license text.
 # The higher the value, the more closely the license text must be to the
@@ -239,7 +240,10 @@ allow-git = []
 
 [sources.allow-org]
 # github.com organizations to allow git sources for
-github = []
+github = [
+    "enarx", # flagset
+    "encounter",
+]
 # gitlab.com organizations to allow git sources for
 gitlab = []
 # bitbucket.org organizations to allow git sources for

objdiff-cli/Cargo.toml

@@ -15,11 +15,11 @@ publish = false
 [dependencies]
 anyhow = "1.0"
 argp = "0.4"
-crossterm = "0.28"
+crossterm = "0.29"
 enable-ansi-support = "0.2"
 memmap2 = "0.9"
 objdiff-core = { path = "../objdiff-core", features = ["all"] }
-prost = "0.13"
+prost = "0.14"
 ratatui = "0.29"
 rayon = "1.10"
 serde = { version = "1.0", features = ["derive"] }
@@ -28,6 +28,7 @@ supports-color = "3.0"
 time = { version = "0.3", features = ["formatting", "local-offset"] }
 tracing = "0.1"
 tracing-subscriber = { version = "0.3", features = ["env-filter"] }
+typed-path = "0.11"
 
 [target.'cfg(target_env = "musl")'.dependencies]
 mimalloc = "0.1"

objdiff-cli/src/argp_version.rs

@@ -4,7 +4,7 @@
 //! For now, this only adds a --version/-V option which causes early-exit.
 use std::ffi::OsStr;
 
-use argp::{parser::ParseGlobalOptions, EarlyExit, FromArgs, TopLevelCommand};
+use argp::{EarlyExit, FromArgs, TopLevelCommand, parser::ParseGlobalOptions};
 
 struct ArgsOrVersion<T>(T)
 where T: FromArgs;

objdiff-cli/src/cmd/diff.rs

@@ -1,76 +1,64 @@
 use std::{
-    fs,
     io::stdout,
     mem,
-    path::{Path, PathBuf},
-    str::FromStr,
     sync::{
-        atomic::{AtomicBool, Ordering},
         Arc,
+        atomic::{AtomicBool, Ordering},
     },
     task::{Wake, Waker},
     time::Duration,
 };
 
-use anyhow::{anyhow, bail, Context, Result};
+use anyhow::{Context, Result, anyhow, bail};
 use argp::FromArgs;
 use crossterm::{
     event,
     event::{DisableMouseCapture, EnableMouseCapture},
     terminal::{
-        disable_raw_mode, enable_raw_mode, EnterAlternateScreen, LeaveAlternateScreen, SetTitle,
+        EnterAlternateScreen, LeaveAlternateScreen, SetTitle, disable_raw_mode, enable_raw_mode,
     },
 };
 use objdiff_core::{
-    bindings::diff::DiffResult,
     build::{
-        watcher::{create_watcher, Watcher},
-        BuildConfig,
+        BuildConfig, BuildStatus,
+        watcher::{Watcher, create_watcher},
     },
-    config::{build_globset, ProjectConfig, ProjectObject},
-    diff,
-    diff::{
-        ConfigEnum, ConfigPropertyId, ConfigPropertyKind, DiffObjConfig, MappingConfig, ObjDiff,
+    config::{
+        ProjectConfig, ProjectObject, ProjectObjectMetadata, build_globset,
+        path::{check_path_buf, platform_path, platform_path_serde_option},
     },
+    diff::{DiffObjConfig, MappingConfig, ObjectDiff},
     jobs::{
-        objdiff::{start_build, ObjDiffConfig},
         Job, JobQueue, JobResult,
+        objdiff::{ObjDiffConfig, start_build},
     },
-    obj,
-    obj::ObjInfo,
+    obj::{self, Object},
 };
 use ratatui::prelude::*;
+use typed_path::{Utf8PlatformPath, Utf8PlatformPathBuf};
 
 use crate::{
-    util::{
-        output::{write_output, OutputFormat},
-        term::crossterm_panic_handler,
-    },
-    views::{function_diff::FunctionDiffUi, EventControlFlow, EventResult, UiView},
+    cmd::apply_config_args,
+    util::term::crossterm_panic_handler,
+    views::{EventControlFlow, EventResult, UiView, function_diff::FunctionDiffUi},
 };
 
 #[derive(FromArgs, PartialEq, Debug)]
 /// Diff two object files. (Interactive or one-shot mode)
 #[argp(subcommand, name = "diff")]
 pub struct Args {
-    #[argp(option, short = '1')]
+    #[argp(option, short = '1', from_str_fn(platform_path))]
     /// Target object file
-    target: Option<PathBuf>,
-    #[argp(option, short = '2')]
+    target: Option<Utf8PlatformPathBuf>,
+    #[argp(option, short = '2', from_str_fn(platform_path))]
     /// Base object file
-    base: Option<PathBuf>,
-    #[argp(option, short = 'p')]
+    base: Option<Utf8PlatformPathBuf>,
+    #[argp(option, short = 'p', from_str_fn(platform_path))]
     /// Project directory
-    project: Option<PathBuf>,
+    project: Option<Utf8PlatformPathBuf>,
     #[argp(option, short = 'u')]
     /// Unit name within project
     unit: Option<String>,
-    #[argp(option, short = 'o')]
-    /// Output file (one-shot mode) ("-" for stdout)
-    output: Option<PathBuf>,
-    #[argp(option)]
-    /// Output format (json, json-pretty, proto) (default: json)
-    format: Option<String>,
     #[argp(positional)]
     /// Function symbol to diff
     symbol: Option<String>,
@@ -89,86 +77,61 @@ pub struct Args {
 }
 
 pub fn run(args: Args) -> Result<()> {
-    let (target_path, base_path, project_config) = match (
-        &args.target,
-        &args.base,
-        &args.project,
-        &args.unit,
-    ) {
-        (Some(_), Some(_), None, None)
-        | (Some(_), None, None, None)
-        | (None, Some(_), None, None) => (args.target.clone(), args.base.clone(), None),
-        (None, None, p, u) => {
-            let project = match p {
-                Some(project) => project.clone(),
-                _ => std::env::current_dir().context("Failed to get the current directory")?,
-            };
-            let Some((project_config, project_config_info)) =
-                objdiff_core::config::try_project_config(&project)
-            else {
-                bail!("Project config not found in {}", &project.display())
-            };
-            let mut project_config = project_config.with_context(|| {
-                format!("Reading project config {}", project_config_info.path.display())
-            })?;
-            let object = {
-                let resolve_paths = |o: &mut ProjectObject| {
-                    o.resolve_paths(
-                        &project,
-                        project_config.target_dir.as_deref(),
-                        project_config.base_dir.as_deref(),
+    let (target_path, base_path, project_config) =
+        match (&args.target, &args.base, &args.project, &args.unit) {
+            (Some(_), Some(_), None, None)
+            | (Some(_), None, None, None)
+            | (None, Some(_), None, None) => (args.target.clone(), args.base.clone(), None),
+            (None, None, p, u) => {
+                let project = match p {
+                    Some(project) => project.clone(),
+                    _ => check_path_buf(
+                        std::env::current_dir().context("Failed to get the current directory")?,
                     )
+                    .context("Current directory is not valid UTF-8")?,
                 };
-                if let Some(u) = u {
-                    let unit_path =
-                        PathBuf::from_str(u).ok().and_then(|p| fs::canonicalize(p).ok());
-
-                    let Some(object) = project_config
-                        .units
-                        .as_deref_mut()
-                        .unwrap_or_default()
-                        .iter_mut()
-                        .find_map(|obj| {
-                            if obj.name.as_deref() == Some(u) {
-                                resolve_paths(obj);
-                                return Some(obj);
-                            }
-
-                            let up = unit_path.as_deref()?;
-
-                            resolve_paths(obj);
-
-                            if [&obj.base_path, &obj.target_path]
-                                .into_iter()
-                                .filter_map(|p| p.as_ref().and_then(|p| p.canonicalize().ok()))
-                                .any(|p| p == up)
-                            {
-                                return Some(obj);
-                            }
-
-                            None
-                        })
-                    else {
-                        bail!("Unit not found: {}", u)
-                    };
-
-                    object
+                let Some((project_config, project_config_info)) =
+                    objdiff_core::config::try_project_config(project.as_ref())
+                else {
+                    bail!("Project config not found in {}", &project)
+                };
+                let project_config = project_config.with_context(|| {
+                    format!("Reading project config {}", project_config_info.path.display())
+                })?;
+                let target_obj_dir = project_config
+                    .target_dir
+                    .as_ref()
+                    .map(|p| project.join(p.with_platform_encoding()));
+                let base_obj_dir = project_config
+                    .base_dir
+                    .as_ref()
+                    .map(|p| project.join(p.with_platform_encoding()));
+                let objects = project_config
+                    .units
+                    .iter()
+                    .flatten()
+                    .map(|o| {
+                        ObjectConfig::new(
+                            o,
+                            &project,
+                            target_obj_dir.as_deref(),
+                            base_obj_dir.as_deref(),
+                        )
+                    })
+                    .collect::<Vec<_>>();
+                let object = if let Some(u) = u {
+                    objects
+                        .iter()
+                        .find(|obj| obj.name == *u)
+                        .ok_or_else(|| anyhow!("Unit not found: {}", u))?
                 } else if let Some(symbol_name) = &args.symbol {
                     let mut idx = None;
                     let mut count = 0usize;
-                    for (i, obj) in project_config
-                        .units
-                        .as_deref_mut()
-                        .unwrap_or_default()
-                        .iter_mut()
-                        .enumerate()
-                    {
-                        resolve_paths(obj);
-
+                    for (i, obj) in objects.iter().enumerate() {
                         if obj
                             .target_path
                             .as_deref()
-                            .map(|o| obj::read::has_function(o, symbol_name))
+                            .map(|o| obj::read::has_function(o.as_ref(), symbol_name))
                             .transpose()?
                             .unwrap_or(false)
                         {
@@ -181,7 +144,7 @@ pub fn run(args: Args) -> Result<()> {
                     }
                     match (count, idx) {
                         (0, None) => bail!("Symbol not found: {}", symbol_name),
-                        (1, Some(i)) => &mut project_config.units_mut()[i],
+                        (1, Some(i)) => &objects[i],
                         (2.., Some(_)) => bail!(
                             "Multiple instances of {} were found, try specifying a unit",
                             symbol_name
@@ -190,46 +153,20 @@ pub fn run(args: Args) -> Result<()> {
                     }
                 } else {
                     bail!("Must specify one of: symbol, project and unit, target and base objects")
-                }
-            };
-            let target_path = object.target_path.clone();
-            let base_path = object.base_path.clone();
-            (target_path, base_path, Some(project_config))
-        }
-        _ => bail!("Either target and base or project and unit must be specified"),
-    };
+                };
+                let target_path = object.target_path.clone();
+                let base_path = object.base_path.clone();
+                (target_path, base_path, Some(project_config))
+            }
+            _ => bail!("Either target and base or project and unit must be specified"),
+        };
 
-    if let Some(output) = &args.output {
-        run_oneshot(&args, output, target_path.as_deref(), base_path.as_deref())
-    } else {
-        run_interactive(args, target_path, base_path, project_config)
-    }
+    run_interactive(args, target_path, base_path, project_config)
 }
 
 fn build_config_from_args(args: &Args) -> Result<(DiffObjConfig, MappingConfig)> {
     let mut diff_config = DiffObjConfig::default();
-    for config in &args.config {
-        let (key, value) = config.split_once('=').context("--config expects \"key=value\"")?;
-        let property_id = ConfigPropertyId::from_str(key)
-            .map_err(|()| anyhow!("Invalid configuration property: {}", key))?;
-        diff_config.set_property_value_str(property_id, value).map_err(|()| {
-            let mut options = String::new();
-            match property_id.kind() {
-                ConfigPropertyKind::Boolean => {
-                    options = "true, false".to_string();
-                }
-                ConfigPropertyKind::Choice(variants) => {
-                    for (i, variant) in variants.iter().enumerate() {
-                        if i > 0 {
-                            options.push_str(", ");
-                        }
-                        options.push_str(variant.value);
-                    }
-                }
-            }
-            anyhow!("Invalid value for {}. Expected one of: {}", property_id.name(), options)
-        })?;
-    }
+    apply_config_args(&mut diff_config, &args.config)?;
     let mut mapping_config = MappingConfig {
         mappings: Default::default(),
         selecting_left: args.selecting_left.clone(),
@@ -243,42 +180,18 @@ fn build_config_from_args(args: &Args) -> Result<(DiffObjConfig, MappingConfig)>
     Ok((diff_config, mapping_config))
 }
 
-fn run_oneshot(
-    args: &Args,
-    output: &Path,
-    target_path: Option<&Path>,
-    base_path: Option<&Path>,
-) -> Result<()> {
-    let output_format = OutputFormat::from_option(args.format.as_deref())?;
-    let (diff_config, mapping_config) = build_config_from_args(args)?;
-    let target = target_path
-        .map(|p| {
-            obj::read::read(p, &diff_config).with_context(|| format!("Loading {}", p.display()))
-        })
-        .transpose()?;
-    let base = base_path
-        .map(|p| {
-            obj::read::read(p, &diff_config).with_context(|| format!("Loading {}", p.display()))
-        })
-        .transpose()?;
-    let result =
-        diff::diff_objs(&diff_config, &mapping_config, target.as_ref(), base.as_ref(), None)?;
-    let left = target.as_ref().and_then(|o| result.left.as_ref().map(|d| (o, d)));
-    let right = base.as_ref().and_then(|o| result.right.as_ref().map(|d| (o, d)));
-    write_output(&DiffResult::new(left, right), Some(output), output_format)?;
-    Ok(())
-}
-
 pub struct AppState {
     pub jobs: JobQueue,
     pub waker: Arc<TermWaker>,
-    pub project_dir: Option<PathBuf>,
+    pub project_dir: Option<Utf8PlatformPathBuf>,
     pub project_config: Option<ProjectConfig>,
-    pub target_path: Option<PathBuf>,
-    pub base_path: Option<PathBuf>,
-    pub left_obj: Option<(ObjInfo, ObjDiff)>,
-    pub right_obj: Option<(ObjInfo, ObjDiff)>,
-    pub prev_obj: Option<(ObjInfo, ObjDiff)>,
+    pub target_path: Option<Utf8PlatformPathBuf>,
+    pub base_path: Option<Utf8PlatformPathBuf>,
+    pub left_status: Option<BuildStatus>,
+    pub right_status: Option<BuildStatus>,
+    pub left_obj: Option<(Object, ObjectDiff)>,
+    pub right_obj: Option<(Object, ObjectDiff)>,
+    pub prev_obj: Option<(Object, ObjectDiff)>,
     pub reload_time: Option<time::OffsetDateTime>,
     pub time_format: Vec<time::format_description::FormatItem<'static>>,
     pub watcher: Option<Watcher>,
@@ -315,6 +228,49 @@ fn create_objdiff_config(state: &AppState) -> ObjDiffConfig {
     }
 }
 
+/// The configuration for a single object file.
+#[derive(Default, Clone, serde::Deserialize, serde::Serialize)]
+pub struct ObjectConfig {
+    pub name: String,
+    #[serde(default, with = "platform_path_serde_option")]
+    pub target_path: Option<Utf8PlatformPathBuf>,
+    #[serde(default, with = "platform_path_serde_option")]
+    pub base_path: Option<Utf8PlatformPathBuf>,
+    pub metadata: ProjectObjectMetadata,
+    pub complete: Option<bool>,
+}
+
+impl ObjectConfig {
+    pub fn new(
+        object: &ProjectObject,
+        project_dir: &Utf8PlatformPath,
+        target_obj_dir: Option<&Utf8PlatformPath>,
+        base_obj_dir: Option<&Utf8PlatformPath>,
+    ) -> Self {
+        let target_path = if let (Some(target_obj_dir), Some(path), None) =
+            (target_obj_dir, &object.path, &object.target_path)
+        {
+            Some(target_obj_dir.join(path.with_platform_encoding()))
+        } else {
+            object.target_path.as_ref().map(|path| project_dir.join(path.with_platform_encoding()))
+        };
+        let base_path = if let (Some(base_obj_dir), Some(path), None) =
+            (base_obj_dir, &object.path, &object.base_path)
+        {
+            Some(base_obj_dir.join(path.with_platform_encoding()))
+        } else {
+            object.base_path.as_ref().map(|path| project_dir.join(path.with_platform_encoding()))
+        };
+        Self {
+            name: object.name().to_string(),
+            target_path,
+            base_path,
+            metadata: object.metadata.clone().unwrap_or_default(),
+            complete: object.complete(),
+        }
+    }
+}
+
 impl AppState {
     fn reload(&mut self) -> Result<()> {
         let config = create_objdiff_config(self);
@@ -330,6 +286,8 @@ impl AppState {
                 JobResult::None => unreachable!("Unexpected JobResult::None"),
                 JobResult::ObjDiff(result) => {
                     let result = result.unwrap();
+                    self.left_status = Some(result.first_status);
+                    self.right_status = Some(result.second_status);
                     self.left_obj = result.first_obj;
                     self.right_obj = result.second_obj;
                     self.reload_time = Some(result.time);
@@ -355,8 +313,8 @@ impl Wake for TermWaker {
 
 fn run_interactive(
     args: Args,
-    target_path: Option<PathBuf>,
-    base_path: Option<PathBuf>,
+    target_path: Option<Utf8PlatformPathBuf>,
+    base_path: Option<Utf8PlatformPathBuf>,
     project_config: Option<ProjectConfig>,
 ) -> Result<()> {
     let Some(symbol_name) = &args.symbol else { bail!("Interactive mode requires a symbol name") };
@@ -370,6 +328,8 @@ fn run_interactive(
         project_config,
         target_path,
         base_path,
+        left_status: None,
+        right_status: None,
         left_obj: None,
         right_obj: None,
         prev_obj: None,
@@ -382,10 +342,12 @@ fn run_interactive(
     };
     if let (Some(project_dir), Some(project_config)) = (&state.project_dir, &state.project_config) {
         let watch_patterns = project_config.build_watch_patterns()?;
+        let ignore_patterns = project_config.build_ignore_patterns()?;
         state.watcher = Some(create_watcher(
             state.modified.clone(),
-            project_dir,
+            project_dir.as_ref(),
             build_globset(&watch_patterns)?,
+            build_globset(&ignore_patterns)?,
             Waker::from(state.waker.clone()),
         )?);
     }
@@ -399,7 +361,7 @@ fn run_interactive(
         stdout(),
         EnterAlternateScreen,
         EnableMouseCapture,
-        SetTitle(format!("{} - objdiff", symbol_name)),
+        SetTitle(format!("{symbol_name} - objdiff")),
     )?;
     let backend = CrosstermBackend::new(stdout());
     let mut terminal = Terminal::new(backend)?;
@@ -407,15 +369,17 @@ fn run_interactive(
     let mut result = EventResult { redraw: true, ..Default::default() };
     'outer: loop {
         if result.redraw {
-            terminal.draw(|f| loop {
-                result.redraw = false;
-                view.draw(&state, f, &mut result);
-                result.click_xy = None;
-                if !result.redraw {
-                    break;
+            terminal.draw(|f| {
+                loop {
+                    result.redraw = false;
+                    view.draw(&state, f, &mut result);
+                    result.click_xy = None;
+                    if !result.redraw {
+                        break;
+                    }
+                    // Clear buffer on redraw
+                    f.buffer_mut().reset();
                 }
-                // Clear buffer on redraw
-                f.buffer_mut().reset();
             })?;
         }
         loop {

objdiff-cli/src/cmd/mod.rs

@@ -1,2 +1,33 @@
 pub mod diff;
 pub mod report;
+
+use std::str::FromStr;
+
+use anyhow::{Context, Result, anyhow};
+use objdiff_core::diff::{ConfigEnum, ConfigPropertyId, ConfigPropertyKind, DiffObjConfig};
+
+pub fn apply_config_args(diff_config: &mut DiffObjConfig, args: &[String]) -> Result<()> {
+    for config in args {
+        let (key, value) = config.split_once('=').context("--config expects \"key=value\"")?;
+        let property_id = ConfigPropertyId::from_str(key)
+            .map_err(|()| anyhow!("Invalid configuration property: {}", key))?;
+        diff_config.set_property_value_str(property_id, value).map_err(|()| {
+            let mut options = String::new();
+            match property_id.kind() {
+                ConfigPropertyKind::Boolean => {
+                    options = "true, false".to_string();
+                }
+                ConfigPropertyKind::Choice(variants) => {
+                    for (i, variant) in variants.iter().enumerate() {
+                        if i > 0 {
+                            options.push_str(", ");
+                        }
+                        options.push_str(variant.value);
+                    }
+                }
+            }
+            anyhow!("Invalid value for {}. Expected one of: {}", property_id.name(), options)
+        })?;
+    }
+    Ok(())
+}

objdiff-cli/src/cmd/report.rs

@@ -1,28 +1,25 @@
-use std::{
-    collections::HashSet,
-    fs::File,
-    io::Read,
-    path::{Path, PathBuf},
-    time::Instant,
-};
+use std::{collections::HashSet, fs::File, io::Read, time::Instant};
 
-use anyhow::{bail, Context, Result};
+use anyhow::{Context, Result, bail};
 use argp::FromArgs;
 use objdiff_core::{
     bindings::report::{
-        ChangeItem, ChangeItemInfo, ChangeUnit, Changes, ChangesInput, Measures, Report,
-        ReportCategory, ReportItem, ReportItemMetadata, ReportUnit, ReportUnitMetadata,
-        REPORT_VERSION,
+        ChangeItem, ChangeItemInfo, ChangeUnit, Changes, ChangesInput, Measures, REPORT_VERSION,
+        Report, ReportCategory, ReportItem, ReportItemMetadata, ReportUnit, ReportUnitMetadata,
     },
-    config::ProjectObject,
+    config::path::platform_path,
     diff, obj,
-    obj::{ObjSectionKind, ObjSymbolFlags},
+    obj::{SectionKind, SymbolFlag},
 };
 use prost::Message;
-use rayon::iter::{IntoParallelRefMutIterator, ParallelIterator};
+use rayon::iter::{IntoParallelRefIterator, ParallelIterator};
 use tracing::{info, warn};
+use typed_path::{Utf8PlatformPath, Utf8PlatformPathBuf};
 
-use crate::util::output::{write_output, OutputFormat};
+use crate::{
+    cmd::{apply_config_args, diff::ObjectConfig},
+    util::output::{OutputFormat, write_output},
+};
 
 #[derive(FromArgs, PartialEq, Debug)]
 /// Generate a progress report for a project.
@@ -43,33 +40,36 @@ pub enum SubCommand {
 /// Generate a progress report for a project.
 #[argp(subcommand, name = "generate")]
 pub struct GenerateArgs {
-    #[argp(option, short = 'p')]
+    #[argp(option, short = 'p', from_str_fn(platform_path))]
     /// Project directory
-    project: Option<PathBuf>,
-    #[argp(option, short = 'o')]
+    project: Option<Utf8PlatformPathBuf>,
+    #[argp(option, short = 'o', from_str_fn(platform_path))]
     /// Output file
-    output: Option<PathBuf>,
+    output: Option<Utf8PlatformPathBuf>,
     #[argp(switch, short = 'd')]
     /// Deduplicate global and weak symbols (runs single-threaded)
     deduplicate: bool,
     #[argp(option, short = 'f')]
     /// Output format (json, json-pretty, proto) (default: json)
     format: Option<String>,
+    #[argp(option, short = 'c')]
+    /// Configuration property (key=value)
+    config: Vec<String>,
 }
 
 #[derive(FromArgs, PartialEq, Debug)]
 /// List any changes from a previous report.
 #[argp(subcommand, name = "changes")]
 pub struct ChangesArgs {
-    #[argp(positional)]
+    #[argp(positional, from_str_fn(platform_path))]
     /// Previous report file
-    previous: PathBuf,
-    #[argp(positional)]
+    previous: Utf8PlatformPathBuf,
+    #[argp(positional, from_str_fn(platform_path))]
     /// Current report file
-    current: PathBuf,
-    #[argp(option, short = 'o')]
+    current: Utf8PlatformPathBuf,
+    #[argp(option, short = 'o', from_str_fn(platform_path))]
     /// Output file
-    output: Option<PathBuf>,
+    output: Option<Utf8PlatformPathBuf>,
     #[argp(option, short = 'f')]
     /// Output format (json, json-pretty, proto) (default: json)
     format: Option<String>,
@@ -83,11 +83,20 @@ pub fn run(args: Args) -> Result<()> {
 }
 
 fn generate(args: GenerateArgs) -> Result<()> {
-    let output_format = OutputFormat::from_option(args.format.as_deref())?;
-    let project_dir = args.project.as_deref().unwrap_or_else(|| Path::new("."));
-    info!("Loading project {}", project_dir.display());
+    let mut diff_config = diff::DiffObjConfig {
+        function_reloc_diffs: diff::FunctionRelocDiffs::None,
+        combine_data_sections: true,
+        combine_text_sections: true,
+        ppc_calculate_pool_relocations: false,
+        ..Default::default()
+    };
+    apply_config_args(&mut diff_config, &args.config)?;
 
-    let mut project = match objdiff_core::config::try_project_config(project_dir) {
+    let output_format = OutputFormat::from_option(args.format.as_deref())?;
+    let project_dir = args.project.as_deref().unwrap_or_else(|| Utf8PlatformPath::new("."));
+    info!("Loading project {}", project_dir);
+
+    let project = match objdiff_core::config::try_project_config(project_dir.as_ref()) {
         Some((Ok(config), _)) => config,
         Some((Err(err), _)) => bail!("Failed to load project configuration: {}", err),
         None => bail!("No project configuration found"),
@@ -98,37 +107,34 @@ fn generate(args: GenerateArgs) -> Result<()> {
         if args.deduplicate { 1 } else { rayon::current_num_threads() }
     );
 
+    let target_obj_dir =
+        project.target_dir.as_ref().map(|p| project_dir.join(p.with_platform_encoding()));
+    let base_obj_dir =
+        project.base_dir.as_ref().map(|p| project_dir.join(p.with_platform_encoding()));
+    let objects = project
+        .units
+        .iter()
+        .flatten()
+        .map(|o| {
+            ObjectConfig::new(o, project_dir, target_obj_dir.as_deref(), base_obj_dir.as_deref())
+        })
+        .collect::<Vec<_>>();
+
     let start = Instant::now();
     let mut units = vec![];
     let mut existing_functions: HashSet<String> = HashSet::new();
     if args.deduplicate {
         // If deduplicating, we need to run single-threaded
-        for object in project.units.as_deref_mut().unwrap_or_default() {
-            if let Some(unit) = report_object(
-                object,
-                project_dir,
-                project.target_dir.as_deref(),
-                project.base_dir.as_deref(),
-                Some(&mut existing_functions),
-            )? {
+        for object in &objects {
+            if let Some(unit) = report_object(object, &diff_config, Some(&mut existing_functions))?
+            {
                 units.push(unit);
             }
         }
     } else {
-        let vec = project
-            .units
-            .as_deref_mut()
-            .unwrap_or_default()
-            .par_iter_mut()
-            .map(|object| {
-                report_object(
-                    object,
-                    project_dir,
-                    project.target_dir.as_deref(),
-                    project.base_dir.as_deref(),
-                    None,
-                )
-            })
+        let vec = objects
+            .par_iter()
+            .map(|object| report_object(object, &diff_config, None))
             .collect::<Result<Vec<Option<ReportUnit>>>>()?;
         units = vec.into_iter().flatten().collect();
     }
@@ -151,62 +157,49 @@ fn generate(args: GenerateArgs) -> Result<()> {
 }
 
 fn report_object(
-    object: &mut ProjectObject,
-    project_dir: &Path,
-    target_dir: Option<&Path>,
-    base_dir: Option<&Path>,
+    object: &ObjectConfig,
+    diff_config: &diff::DiffObjConfig,
     mut existing_functions: Option<&mut HashSet<String>>,
 ) -> Result<Option<ReportUnit>> {
-    object.resolve_paths(project_dir, target_dir, base_dir);
     match (&object.target_path, &object.base_path) {
-        (None, Some(_)) if !object.complete().unwrap_or(false) => {
-            warn!("Skipping object without target: {}", object.name());
+        (None, Some(_)) if !object.complete.unwrap_or(false) => {
+            warn!("Skipping object without target: {}", object.name);
             return Ok(None);
         }
         (None, None) => {
-            warn!("Skipping object without target or base: {}", object.name());
+            warn!("Skipping object without target or base: {}", object.name);
             return Ok(None);
         }
         _ => {}
     }
-    let diff_config = diff::DiffObjConfig {
-        function_reloc_diffs: diff::FunctionRelocDiffs::None,
-        ..Default::default()
-    };
     let mapping_config = diff::MappingConfig::default();
     let target = object
         .target_path
         .as_ref()
         .map(|p| {
-            obj::read::read(p, &diff_config)
-                .with_context(|| format!("Failed to open {}", p.display()))
+            obj::read::read(p.as_ref(), diff_config).with_context(|| format!("Failed to open {p}"))
         })
         .transpose()?;
     let base = object
         .base_path
         .as_ref()
         .map(|p| {
-            obj::read::read(p, &diff_config)
-                .with_context(|| format!("Failed to open {}", p.display()))
+            obj::read::read(p.as_ref(), diff_config).with_context(|| format!("Failed to open {p}"))
         })
         .transpose()?;
     let result =
-        diff::diff_objs(&diff_config, &mapping_config, target.as_ref(), base.as_ref(), None)?;
+        diff::diff_objs(target.as_ref(), base.as_ref(), None, diff_config, &mapping_config)?;
 
     let metadata = ReportUnitMetadata {
-        complete: object.complete(),
+        complete: object.metadata.complete,
         module_name: target
             .as_ref()
             .and_then(|o| o.split_meta.as_ref())
             .and_then(|m| m.module_name.clone()),
         module_id: target.as_ref().and_then(|o| o.split_meta.as_ref()).and_then(|m| m.module_id),
-        source_path: object.metadata.as_ref().and_then(|m| m.source_path.clone()),
-        progress_categories: object
-            .metadata
-            .as_ref()
-            .and_then(|m| m.progress_categories.clone())
-            .unwrap_or_default(),
-        auto_generated: object.metadata.as_ref().and_then(|m| m.auto_generated),
+        source_path: object.metadata.source_path.as_ref().map(|p| p.to_string()),
+        progress_categories: object.metadata.progress_categories.clone().unwrap_or_default(),
+        auto_generated: object.metadata.auto_generated,
     };
     let mut measures = Measures { total_units: 1, ..Default::default() };
     let mut sections = vec![];
@@ -214,15 +207,16 @@ fn report_object(
 
     let obj = target.as_ref().or(base.as_ref()).unwrap();
     let obj_diff = result.left.as_ref().or(result.right.as_ref()).unwrap();
-    for (section, section_diff) in obj.sections.iter().zip(&obj_diff.sections) {
+    for ((section_idx, section), section_diff) in
+        obj.sections.iter().enumerate().zip(&obj_diff.sections)
+    {
+        if section.kind == SectionKind::Unknown {
+            continue;
+        }
         let section_match_percent = section_diff.match_percent.unwrap_or_else(|| {
             // Support cases where we don't have a target object,
             // assume complete means 100% match
-            if object.complete().unwrap_or(false) {
-                100.0
-            } else {
-                0.0
-            }
+            if object.complete.unwrap_or(false) { 100.0 } else { 0.0 }
         });
         sections.push(ReportItem {
             name: section.name.clone(),
@@ -232,39 +226,39 @@ fn report_object(
                 demangled_name: None,
                 virtual_address: section.virtual_address,
             }),
+            address: None,
         });
 
         match section.kind {
-            ObjSectionKind::Data | ObjSectionKind::Bss => {
+            SectionKind::Data | SectionKind::Bss => {
                 measures.total_data += section.size;
                 if section_match_percent == 100.0 {
                     measures.matched_data += section.size;
                 }
                 continue;
             }
-            ObjSectionKind::Code => (),
+            _ => {}
         }
 
-        for (symbol, symbol_diff) in section.symbols.iter().zip(&section_diff.symbols) {
-            if symbol.size == 0 || symbol.flags.0.contains(ObjSymbolFlags::Hidden) {
+        for (symbol, symbol_diff) in obj.symbols.iter().zip(&obj_diff.symbols) {
+            if symbol.section != Some(section_idx)
+                || symbol.size == 0
+                || symbol.flags.contains(SymbolFlag::Hidden)
+                || symbol.flags.contains(SymbolFlag::Ignored)
+            {
                 continue;
             }
-            if let Some(existing_functions) = &mut existing_functions {
-                if (symbol.flags.0.contains(ObjSymbolFlags::Global)
-                    || symbol.flags.0.contains(ObjSymbolFlags::Weak))
-                    && !existing_functions.insert(symbol.name.clone())
-                {
-                    continue;
-                }
+            if let Some(existing_functions) = &mut existing_functions
+                && (symbol.flags.contains(SymbolFlag::Global)
+                    || symbol.flags.contains(SymbolFlag::Weak))
+                && !existing_functions.insert(symbol.name.clone())
+            {
+                continue;
             }
             let match_percent = symbol_diff.match_percent.unwrap_or_else(|| {
                 // Support cases where we don't have a target object,
                 // assume complete means 100% match
-                if object.complete().unwrap_or(false) {
-                    100.0
-                } else {
-                    0.0
-                }
+                if object.complete.unwrap_or(false) { 100.0 } else { 0.0 }
             });
             measures.fuzzy_match_percent += match_percent * symbol.size as f32;
             measures.total_code += symbol.size;
@@ -279,6 +273,7 @@ fn report_object(
                     demangled_name: symbol.demangled_name.clone(),
                     virtual_address: symbol.virtual_address,
                 }),
+                address: symbol.address.checked_sub(section.address),
             });
             if match_percent == 100.0 {
                 measures.matched_functions += 1;
@@ -286,6 +281,16 @@ fn report_object(
             measures.total_functions += 1;
         }
     }
+    sections.sort_by(|a, b| a.name.cmp(&b.name));
+    let reverse_fn_order = object.metadata.reverse_fn_order.unwrap_or(false);
+    functions.sort_by(|a, b| {
+        if reverse_fn_order {
+            b.address.unwrap_or(0).cmp(&a.address.unwrap_or(0))
+        } else {
+            a.address.unwrap_or(u64::MAX).cmp(&b.address.unwrap_or(u64::MAX))
+        }
+        .then_with(|| a.size.cmp(&b.size))
+    });
     if metadata.complete.unwrap_or(false) {
         measures.complete_code = measures.total_code;
         measures.complete_data = measures.total_data;
@@ -294,7 +299,7 @@ fn report_object(
     measures.calc_fuzzy_match_percent();
     measures.calc_matched_percent();
     Ok(Some(ReportUnit {
-        name: object.name().to_string(),
+        name: object.name.clone(),
         measures: Some(measures),
         sections,
         functions,
@@ -304,7 +309,7 @@ fn report_object(
 
 fn changes(args: ChangesArgs) -> Result<()> {
     let output_format = OutputFormat::from_option(args.format.as_deref())?;
-    let (previous, current) = if args.previous == Path::new("-") && args.current == Path::new("-") {
+    let (previous, current) = if args.previous == "-" && args.current == "-" {
         // Special case for comparing two reports from stdin
         let mut data = vec![];
         std::io::stdin().read_to_end(&mut data)?;
@@ -419,15 +424,14 @@ fn process_new_items(items: &[ReportItem]) -> Vec<ChangeItem> {
         .collect()
 }
 
-fn read_report(path: &Path) -> Result<Report> {
-    if path == Path::new("-") {
+fn read_report(path: &Utf8PlatformPath) -> Result<Report> {
+    if path == Utf8PlatformPath::new("-") {
         let mut data = vec![];
         std::io::stdin().read_to_end(&mut data)?;
         return Report::parse(&data).with_context(|| "Failed to load report from stdin");
     }
-    let file = File::open(path).with_context(|| format!("Failed to open {}", path.display()))?;
-    let mmap = unsafe { memmap2::Mmap::map(&file) }
-        .with_context(|| format!("Failed to map {}", path.display()))?;
-    Report::parse(mmap.as_ref())
-        .with_context(|| format!("Failed to load report {}", path.display()))
+    let file = File::open(path).with_context(|| format!("Failed to open {path}"))?;
+    let mmap =
+        unsafe { memmap2::Mmap::map(&file) }.with_context(|| format!("Failed to map {path}"))?;
+    Report::parse(mmap.as_ref()).with_context(|| format!("Failed to load report {path}"))
 }

objdiff-cli/src/main.rs

@@ -1,3 +1,5 @@
+#![allow(clippy::too_many_arguments)]
+
 mod argp_version;
 mod cmd;
 mod util;
@@ -15,7 +17,7 @@ use anyhow::{Error, Result};
 use argp::{FromArgValue, FromArgs};
 use enable_ansi_support::enable_ansi_support;
 use supports_color::Stream;
-use tracing_subscriber::{filter::LevelFilter, EnvFilter};
+use tracing_subscriber::{EnvFilter, filter::LevelFilter};
 
 #[derive(Debug, Eq, PartialEq, Copy, Clone)]
 enum LogLevel {

objdiff-cli/src/util/output.rs

@@ -5,7 +5,7 @@ use std::{
     path::Path,
 };
 
-use anyhow::{bail, Context, Result};
+use anyhow::{Context, Result, bail};
 use tracing::info;
 
 #[derive(Debug, Copy, Clone, PartialEq, Eq, Default)]
@@ -34,9 +34,12 @@ impl OutputFormat {
     }
 }
 
-pub fn write_output<T>(input: &T, output: Option<&Path>, format: OutputFormat) -> Result<()>
-where T: serde::Serialize + prost::Message {
-    match output {
+pub fn write_output<T, P>(input: &T, output: Option<P>, format: OutputFormat) -> Result<()>
+where
+    T: serde::Serialize + prost::Message,
+    P: AsRef<Path>,
+{
+    match output.as_ref().map(|p| p.as_ref()) {
         Some(output) if output != Path::new("-") => {
             info!("Writing to {}", output.display());
             let file = File::options()

objdiff-cli/src/util/term.rs

@@ -3,7 +3,7 @@ use std::{io::stdout, panic};
 use crossterm::{
     cursor::Show,
     event::DisableMouseCapture,
-    terminal::{disable_raw_mode, LeaveAlternateScreen},
+    terminal::{LeaveAlternateScreen, disable_raw_mode},
 };
 
 pub fn crossterm_panic_handler() {

objdiff-cli/src/views/function_diff.rs

@@ -1,16 +1,19 @@
-use anyhow::{bail, Result};
+use core::cmp::Ordering;
+
+use anyhow::Result;
 use crossterm::event::{Event, KeyCode, KeyEventKind, KeyModifiers, MouseButton, MouseEventKind};
 use objdiff_core::{
+    build::BuildStatus,
     diff::{
-        display::{display_diff, DiffText, HighlightKind},
-        FunctionRelocDiffs, ObjDiff, ObjInsDiffKind, ObjSymbolDiff,
+        DiffObjConfig, FunctionRelocDiffs, InstructionDiffKind, ObjectDiff, SymbolDiff,
+        display::{DiffText, DiffTextColor, HighlightKind, display_row},
     },
-    obj::{ObjInfo, ObjSectionKind, ObjSymbol, SymbolRef},
+    obj::Object,
 };
 use ratatui::{
+    Frame,
     prelude::*,
     widgets::{Block, Borders, Clear, Paragraph, Scrollbar, ScrollbarOrientation, ScrollbarState},
-    Frame,
 };
 
 use super::{EventControlFlow, EventResult, UiView};
@@ -28,9 +31,9 @@ pub struct FunctionDiffUi {
     pub scroll_state_y: ScrollbarState,
     pub per_page: usize,
     pub num_rows: usize,
-    pub left_sym: Option<SymbolRef>,
-    pub right_sym: Option<SymbolRef>,
-    pub prev_sym: Option<SymbolRef>,
+    pub left_sym: Option<usize>,
+    pub right_sym: Option<usize>,
+    pub prev_sym: Option<usize>,
     pub open_options: bool,
     pub three_way: bool,
 }
@@ -80,11 +83,11 @@ impl UiView for FunctionDiffUi {
         f.render_widget(line_l, header_chunks[0]);
 
         let mut line_r = Line::default();
-        if let Some(percent) =
-            get_symbol(state.right_obj.as_ref(), self.right_sym).and_then(|(_, d)| d.match_percent)
+        if let Some(percent) = get_symbol(state.right_obj.as_ref(), self.right_sym)
+            .and_then(|(_, _, d)| d.match_percent)
         {
             line_r.spans.push(Span::styled(
-                format!("{:.2}% ", percent),
+                format!("{percent:.2}% "),
                 Style::new().fg(match_percent_color(percent)),
             ));
         }
@@ -94,7 +97,7 @@ impl UiView for FunctionDiffUi {
             .and_then(|t| t.format(&state.time_format).ok())
             .unwrap_or_else(|| "N/A".to_string());
         line_r.spans.push(Span::styled(
-            format!("Last reload: {}", reload_time),
+            format!("Last reload: {reload_time}"),
             Style::new().fg(Color::White),
         ));
         line_r.spans.push(Span::styled(
@@ -106,13 +109,17 @@ impl UiView for FunctionDiffUi {
         let mut left_text = None;
         let mut left_highlight = None;
         let mut max_width = 0;
-        if let Some((symbol, symbol_diff)) = get_symbol(state.left_obj.as_ref(), self.left_sym) {
+        if let Some((obj, symbol_idx, symbol_diff)) =
+            get_symbol(state.left_obj.as_ref(), self.left_sym)
+        {
             let mut text = Text::default();
             let rect = content_chunks[0].inner(Margin::new(0, 1));
             left_highlight = self.print_sym(
                 &mut text,
-                symbol,
+                obj,
+                symbol_idx,
                 symbol_diff,
+                &state.diff_obj_config,
                 rect,
                 &self.left_highlight,
                 result,
@@ -120,18 +127,27 @@ impl UiView for FunctionDiffUi {
             );
             max_width = max_width.max(text.width());
             left_text = Some(text);
+        } else if let Some(status) = &state.left_status {
+            let mut text = Text::default();
+            self.print_build_status(&mut text, status);
+            max_width = max_width.max(text.width());
+            left_text = Some(text);
         }
 
         let mut right_text = None;
         let mut right_highlight = None;
         let mut margin_text = None;
-        if let Some((symbol, symbol_diff)) = get_symbol(state.right_obj.as_ref(), self.right_sym) {
+        if let Some((obj, symbol_idx, symbol_diff)) =
+            get_symbol(state.right_obj.as_ref(), self.right_sym)
+        {
             let mut text = Text::default();
             let rect = content_chunks[2].inner(Margin::new(0, 1));
             right_highlight = self.print_sym(
                 &mut text,
-                symbol,
+                obj,
+                symbol_idx,
                 symbol_diff,
+                &state.diff_obj_config,
                 rect,
                 &self.right_highlight,
                 result,
@@ -145,33 +161,40 @@ impl UiView for FunctionDiffUi {
             let rect = content_chunks[1].inner(Margin::new(1, 1));
             self.print_margin(&mut text, symbol_diff, rect);
             margin_text = Some(text);
+        } else if let Some(status) = &state.right_status {
+            let mut text = Text::default();
+            self.print_build_status(&mut text, status);
+            max_width = max_width.max(text.width());
+            right_text = Some(text);
         }
 
         let mut prev_text = None;
         let mut prev_margin_text = None;
-        if self.three_way {
-            if let Some((symbol, symbol_diff)) = get_symbol(state.prev_obj.as_ref(), self.prev_sym)
-            {
-                let mut text = Text::default();
-                let rect = content_chunks[4].inner(Margin::new(0, 1));
-                self.print_sym(
-                    &mut text,
-                    symbol,
-                    symbol_diff,
-                    rect,
-                    &self.right_highlight,
-                    result,
-                    true,
-                );
-                max_width = max_width.max(text.width());
-                prev_text = Some(text);
+        if self.three_way
+            && let Some((obj, symbol_idx, symbol_diff)) =
+                get_symbol(state.prev_obj.as_ref(), self.prev_sym)
+        {
+            let mut text = Text::default();
+            let rect = content_chunks[4].inner(Margin::new(0, 1));
+            self.print_sym(
+                &mut text,
+                obj,
+                symbol_idx,
+                symbol_diff,
+                &state.diff_obj_config,
+                rect,
+                &self.right_highlight,
+                result,
+                true,
+            );
+            max_width = max_width.max(text.width());
+            prev_text = Some(text);
 
-                // Render margin
-                let mut text = Text::default();
-                let rect = content_chunks[3].inner(Margin::new(1, 1));
-                self.print_margin(&mut text, symbol_diff, rect);
-                prev_margin_text = Some(text);
-            }
+            // Render margin
+            let mut text = Text::default();
+            let rect = content_chunks[3].inner(Margin::new(1, 1));
+            self.print_margin(&mut text, symbol_diff, rect);
+            prev_margin_text = Some(text);
         }
 
         let max_scroll_x =
@@ -426,19 +449,21 @@ impl UiView for FunctionDiffUi {
 
     fn reload(&mut self, state: &AppState) -> Result<()> {
         let left_sym =
-            state.left_obj.as_ref().and_then(|(o, _)| find_function(o, &self.symbol_name));
+            state.left_obj.as_ref().and_then(|(o, _)| o.symbol_by_name(&self.symbol_name));
         let right_sym =
-            state.right_obj.as_ref().and_then(|(o, _)| find_function(o, &self.symbol_name));
+            state.right_obj.as_ref().and_then(|(o, _)| o.symbol_by_name(&self.symbol_name));
         let prev_sym =
-            state.prev_obj.as_ref().and_then(|(o, _)| find_function(o, &self.symbol_name));
+            state.prev_obj.as_ref().and_then(|(o, _)| o.symbol_by_name(&self.symbol_name));
         self.num_rows = match (
             get_symbol(state.left_obj.as_ref(), left_sym),
             get_symbol(state.right_obj.as_ref(), right_sym),
         ) {
-            (Some((_l, ld)), Some((_r, rd))) => ld.instructions.len().max(rd.instructions.len()),
-            (Some((_l, ld)), None) => ld.instructions.len(),
-            (None, Some((_r, rd))) => rd.instructions.len(),
-            (None, None) => bail!("Symbol not found: {}", self.symbol_name),
+            (Some((_l, _ls, ld)), Some((_r, _rs, rd))) => {
+                ld.instruction_rows.len().max(rd.instruction_rows.len())
+            }
+            (Some((_l, _ls, ld)), None) => ld.instruction_rows.len(),
+            (None, Some((_r, _rs, rd))) => rd.instruction_rows.len(),
+            (None, None) => 0,
         };
         self.left_sym = left_sym;
         self.right_sym = right_sym;
@@ -480,113 +505,85 @@ impl FunctionDiffUi {
         self.scroll_y += self.per_page / if half { 2 } else { 1 };
     }
 
-    #[allow(clippy::too_many_arguments)]
     fn print_sym(
         &self,
         out: &mut Text<'static>,
-        symbol: &ObjSymbol,
-        symbol_diff: &ObjSymbolDiff,
+        obj: &Object,
+        symbol_index: usize,
+        symbol_diff: &SymbolDiff,
+        diff_config: &DiffObjConfig,
         rect: Rect,
         highlight: &HighlightKind,
         result: &EventResult,
         only_changed: bool,
     ) -> Option<HighlightKind> {
-        let base_addr = symbol.address;
         let mut new_highlight = None;
-        for (y, ins_diff) in symbol_diff
-            .instructions
+        for (y, ins_row) in symbol_diff
+            .instruction_rows
             .iter()
             .skip(self.scroll_y)
             .take(rect.height as usize)
             .enumerate()
         {
-            if only_changed && ins_diff.kind == ObjInsDiffKind::None {
+            if only_changed && ins_row.kind == InstructionDiffKind::None {
                 out.lines.push(Line::default());
                 continue;
             }
             let mut sx = rect.x;
             let sy = rect.y + y as u16;
             let mut line = Line::default();
-            display_diff(ins_diff, base_addr, |text| -> Result<()> {
-                let label_text;
-                let mut base_color = match ins_diff.kind {
-                    ObjInsDiffKind::None
-                    | ObjInsDiffKind::OpMismatch
-                    | ObjInsDiffKind::ArgMismatch => Color::Gray,
-                    ObjInsDiffKind::Replace => Color::Cyan,
-                    ObjInsDiffKind::Delete => Color::Red,
-                    ObjInsDiffKind::Insert => Color::Green,
-                };
-                let mut pad_to = 0;
-                match text {
-                    DiffText::Basic(text) => {
-                        label_text = text.to_string();
-                    }
-                    DiffText::BasicColor(s, idx) => {
-                        label_text = s.to_string();
-                        base_color = COLOR_ROTATION[idx % COLOR_ROTATION.len()];
-                    }
-                    DiffText::Line(num) => {
-                        label_text = format!("{num} ");
-                        base_color = Color::DarkGray;
-                        pad_to = 5;
-                    }
-                    DiffText::Address(addr) => {
-                        label_text = format!("{:x}:", addr);
-                        pad_to = 5;
-                    }
-                    DiffText::Opcode(mnemonic, _op) => {
-                        label_text = mnemonic.to_string();
-                        if ins_diff.kind == ObjInsDiffKind::OpMismatch {
-                            base_color = Color::Blue;
-                        }
-                        pad_to = 8;
-                    }
-                    DiffText::Argument(arg, diff) => {
-                        label_text = arg.to_string();
-                        if let Some(diff) = diff {
-                            base_color = COLOR_ROTATION[diff.idx % COLOR_ROTATION.len()]
-                        }
-                    }
-                    DiffText::BranchDest(addr, diff) => {
-                        label_text = format!("{addr:x}");
-                        if let Some(diff) = diff {
-                            base_color = COLOR_ROTATION[diff.idx % COLOR_ROTATION.len()]
-                        }
-                    }
-                    DiffText::Symbol(sym, diff) => {
-                        let name = sym.demangled_name.as_ref().unwrap_or(&sym.name);
-                        label_text = name.clone();
-                        if let Some(diff) = diff {
-                            base_color = COLOR_ROTATION[diff.idx % COLOR_ROTATION.len()]
-                        } else {
-                            base_color = Color::White;
-                        }
+            display_row(obj, symbol_index, ins_row, diff_config, |segment| {
+                let highlight_kind = HighlightKind::from(&segment.text);
+                let label_text = match segment.text {
+                    DiffText::Basic(text) => text.to_string(),
+                    DiffText::Line(num) => format!("{num} "),
+                    DiffText::Address(addr) => format!("{addr:x}:"),
+                    DiffText::Opcode(mnemonic, _op) => format!("{mnemonic} "),
+                    DiffText::Argument(arg) => arg.to_string(),
+                    DiffText::BranchDest(addr) => format!("{addr:x}"),
+                    DiffText::Symbol(sym) => {
+                        sym.demangled_name.as_ref().unwrap_or(&sym.name).clone()
                     }
+                    DiffText::Addend(addend) => match addend.cmp(&0i64) {
+                        Ordering::Greater => format!("+{addend:#x}"),
+                        Ordering::Less => format!("-{:#x}", -addend),
+                        _ => String::new(),
+                    },
                     DiffText::Spacing(n) => {
-                        line.spans.push(Span::raw(" ".repeat(n)));
+                        line.spans.push(Span::raw(" ".repeat(n as usize)));
                         sx += n as u16;
                         return Ok(());
                     }
-                    DiffText::Eol => {
-                        return Ok(());
-                    }
-                }
+                    DiffText::Eol => return Ok(()),
+                };
+
                 let len = label_text.len();
-                let highlighted = *highlight == text;
-                if let Some((cx, cy)) = result.click_xy {
-                    if cx >= sx && cx < sx + len as u16 && cy == sy {
-                        new_highlight = Some(text.into());
-                    }
+                let highlighted =
+                    highlight_kind != HighlightKind::None && *highlight == highlight_kind;
+                if let Some((cx, cy)) = result.click_xy
+                    && cx >= sx
+                    && cx < sx + len as u16
+                    && cy == sy
+                {
+                    new_highlight = Some(highlight_kind);
                 }
-                let mut style = Style::new().fg(base_color);
+                let mut style = Style::new().fg(match segment.color {
+                    DiffTextColor::Normal => Color::Gray,
+                    DiffTextColor::Dim => Color::DarkGray,
+                    DiffTextColor::Bright => Color::White,
+                    DiffTextColor::DataFlow => Color::LightCyan,
+                    DiffTextColor::Replace => Color::Cyan,
+                    DiffTextColor::Delete => Color::Red,
+                    DiffTextColor::Insert => Color::Green,
+                    DiffTextColor::Rotating(i) => COLOR_ROTATION[i as usize % COLOR_ROTATION.len()],
+                });
                 if highlighted {
                     style = style.bg(Color::DarkGray);
                 }
                 line.spans.push(Span::styled(label_text, style));
                 sx += len as u16;
-                if pad_to > len {
-                    let pad = (pad_to - len) as u16;
+                if segment.pad_to as usize > len {
+                    let pad = (segment.pad_to as usize - len) as u16;
                     line.spans.push(Span::raw(" ".repeat(pad as usize)));
                     sx += pad;
                 }
@@ -598,12 +595,13 @@ impl FunctionDiffUi {
         new_highlight
     }
 
-    fn print_margin(&self, out: &mut Text, symbol: &ObjSymbolDiff, rect: Rect) {
-        for ins_diff in symbol.instructions.iter().skip(self.scroll_y).take(rect.height as usize) {
-            if ins_diff.kind != ObjInsDiffKind::None {
-                out.lines.push(Line::raw(match ins_diff.kind {
-                    ObjInsDiffKind::Delete => "<",
-                    ObjInsDiffKind::Insert => ">",
+    fn print_margin(&self, out: &mut Text, symbol: &SymbolDiff, rect: Rect) {
+        for ins_row in symbol.instruction_rows.iter().skip(self.scroll_y).take(rect.height as usize)
+        {
+            if ins_row.kind != InstructionDiffKind::None {
+                out.lines.push(Line::raw(match ins_row.kind {
+                    InstructionDiffKind::Delete => "<",
+                    InstructionDiffKind::Insert => ">",
                     _ => "|",
                 }));
             } else {
@@ -611,6 +609,18 @@ impl FunctionDiffUi {
             }
         }
     }
+
+    fn print_build_status<'a>(&self, out: &mut Text<'a>, status: &'a BuildStatus) {
+        if !status.cmdline.is_empty() {
+            out.lines.push(Line::styled(status.cmdline.clone(), Style::new().fg(Color::LightBlue)));
+        }
+        for line in status.stdout.lines() {
+            out.lines.push(Line::styled(line, Style::new().fg(Color::White)));
+        }
+        for line in status.stderr.lines() {
+            out.lines.push(Line::styled(line, Style::new().fg(Color::Red)));
+        }
+    }
 }
 
 pub const COLOR_ROTATION: [Color; 7] = [
@@ -635,24 +645,10 @@ pub fn match_percent_color(match_percent: f32) -> Color {
 
 #[inline]
 fn get_symbol(
-    obj: Option<&(ObjInfo, ObjDiff)>,
-    sym: Option<SymbolRef>,
-) -> Option<(&ObjSymbol, &ObjSymbolDiff)> {
+    obj: Option<&(Object, ObjectDiff)>,
+    sym: Option<usize>,
+) -> Option<(&Object, usize, &SymbolDiff)> {
     let (obj, diff) = obj?;
     let sym = sym?;
-    Some((obj.section_symbol(sym).1, diff.symbol_diff(sym)))
-}
-
-fn find_function(obj: &ObjInfo, name: &str) -> Option<SymbolRef> {
-    for (section_idx, section) in obj.sections.iter().enumerate() {
-        if section.kind != ObjSectionKind::Code {
-            continue;
-        }
-        for (symbol_idx, symbol) in section.symbols.iter().enumerate() {
-            if symbol.name == name {
-                return Some(SymbolRef { section_idx, symbol_idx });
-            }
-        }
-    }
-    None
+    Some((obj, sym, &diff.symbols[sym]))
 }

objdiff-core/Cargo.toml

@@ -12,54 +12,44 @@ A local diffing tool for decompilation projects.
 """
 documentation = "https://docs.rs/objdiff-core"
 
-[lib]
-crate-type = ["cdylib", "rlib"]
-
 [features]
+default = ["std"]
 all = [
     # Features
     "bindings",
     "build",
     "config",
     "dwarf",
+    "serde",
     # Architectures
+    "arm",
+    "arm64",
     "mips",
     "ppc",
     "x86",
-    "arm",
-    "arm64",
+    "superh"
 ]
 # Implicit, used to check if any arch is enabled
 any-arch = [
-    "config",
-    "dep:bimap",
-    "dep:byteorder",
     "dep:flagset",
     "dep:heck",
     "dep:log",
-    "dep:memmap2",
     "dep:num-traits",
     "dep:prettyplease",
     "dep:proc-macro2",
     "dep:quote",
-    "dep:serde",
-    "dep:serde_json",
+    "dep:regex",
     "dep:similar",
-    "dep:strum",
     "dep:syn",
+    "dep:encoding_rs"
 ]
 bindings = [
-    "dep:pbjson",
-    "dep:pbjson-build",
     "dep:prost",
     "dep:prost-build",
-    "dep:serde",
-    "dep:serde_json",
 ]
 build = [
     "dep:notify",
     "dep:notify-debouncer-full",
-    "dep:path-slash",
     "dep:reqwest",
     "dep:self_update",
     "dep:shell-escape",
@@ -68,24 +58,46 @@ build = [
     "dep:winapi",
 ]
 config = [
-    "dep:bimap",
-    "dep:filetime",
     "dep:globset",
     "dep:semver",
+    "dep:typed-path",
+]
+dwarf = [
+    "dep:gimli",
+    "dep:typed-arena",
+]
+serde = [
+    "dep:pbjson",
+    "dep:pbjson-build",
     "dep:serde",
     "dep:serde_json",
-    "dep:serde_yaml",
 ]
-dwarf = ["dep:gimli"]
+std = [
+    "anyhow/std",
+    "flagset?/std",
+    "log?/std",
+    "num-traits?/std",
+    "object/std",
+    "prost?/std",
+    "serde?/std",
+    "similar?/std",
+    "typed-arena?/std",
+    "typed-path?/std",
+    "dep:filetime",
+    "dep:memmap2",
+]
 mips = [
     "any-arch",
+    "dep:cpp_demangle",
+    "dep:cwdemangle",
     "dep:rabbitizer",
 ]
 ppc = [
     "any-arch",
     "dep:cwdemangle",
     "dep:cwextab",
-    "dep:ppc750cl",
+    "dep:powerpc",
+    "dep:rlwinmdec",
 ]
 x86 = [
     "any-arch",
@@ -105,79 +117,70 @@ arm64 = [
     "dep:yaxpeax-arch",
     "dep:yaxpeax-arm",
 ]
-wasm = [
+superh = [
     "any-arch",
-    "bindings",
-    "dep:console_error_panic_hook",
-    "dep:console_log",
-    "dep:log",
-    "dep:tsify-next",
-    "dep:wasm-bindgen",
 ]
 
 [package.metadata.docs.rs]
 features = ["all"]
 
 [dependencies]
-anyhow = "1.0"
-bimap = { version = "0.6", features = ["serde"], optional = true }
-byteorder = { version = "1.5", optional = true }
+anyhow = { version = "1.0", default-features = false }
 filetime = { version = "0.2", optional = true }
-flagset = { version = "0.4", optional = true }
-log = { version = "0.4", optional = true }
+flagset = { version = "0.4", default-features = false, optional = true }
+itertools = { version = "0.14", default-features = false, features = ["use_alloc"] }
+log = { version = "0.4", default-features = false, optional = true }
 memmap2 = { version = "0.9", optional = true }
-num-traits = { version = "0.2", optional = true }
-object = { version = "0.36", features = ["read_core", "std", "elf", "pe"], default-features = false }
-pbjson = { version = "0.7", optional = true }
-prost = { version = "0.13", optional = true }
-serde = { version = "1.0", features = ["derive"], optional = true }
-similar = { version = "2.6", default-features = false, optional = true }
-strum = { version = "0.26", features = ["derive"], optional = true }
-wasm-bindgen = { version = "0.2", optional = true }
-tsify-next = { version = "0.5", default-features = false, features = ["js"], optional = true }
-console_log = { version = "1.0", optional = true }
-console_error_panic_hook = { version = "0.1", optional = true }
+num-traits = { version = "0.2", default-features = false, optional = true }
+object = { version = "0.37", default-features = false, features = ["read_core", "elf", "coff"] }
+pbjson = { version = "0.8", default-features = false, optional = true }
+prost = { version = "0.14", default-features = false, features = ["derive"], optional = true }
+regex = { version = "1.11", default-features = false, features = [], optional = true }
+serde = { version = "1.0", default-features = false, features = ["derive"], optional = true }
+similar = { git = "https://github.com/encounter/similar.git", branch = "no_std", default-features = false, features = ["hashbrown"], optional = true }
+typed-path = { version = "0.11", default-features = false, optional = true }
 
 # config
-globset = { version = "0.4", features = ["serde1"], optional = true }
-semver = { version = "1.0", optional = true }
-serde_json = { version = "1.0", optional = true }
-serde_yaml = { version = "0.9", optional = true }
+globset = { version = "0.4", default-features = false, optional = true }
+semver = { version = "1.0", default-features = false, optional = true }
+serde_json = { version = "1.0", default-features = false, features = ["alloc"], optional = true }
 
 # dwarf
-gimli = { version = "0.31", default-features = false, features = ["read-all"], optional = true }
+gimli = { git = "https://github.com/gimli-rs/gimli", rev = "7335f00e7c39fd501511584fefb0ba974117c950", default-features = false, features = ["read"], optional = true }
+typed-arena = { version = "2.0", default-features = false, optional = true }
 
 # ppc
 cwdemangle = { version = "1.0", optional = true }
-cwextab = { version = "1.0", optional = true }
-ppc750cl = { version = "0.3", optional = true }
+cwextab = { version = "1.1", optional = true }
+powerpc = { version = "0.4", optional = true }
+rlwinmdec = { version = "1.1", optional = true }
 
 # mips
-rabbitizer = { version = "1.12", optional = true }
+rabbitizer = { version = "2.0.0-alpha.4", default-features = false, features = ["all_extensions"], optional = true }
 
 # x86
-cpp_demangle = { version = "0.4", optional = true }
-iced-x86 = { version = "1.21", default-features = false, features = ["std", "decoder", "intel", "gas", "masm", "nasm", "exhaustive_enums"], optional = true }
-msvc-demangler = { version = "0.10", optional = true }
+cpp_demangle = { version = "0.4", default-features = false, features = ["alloc"], optional = true }
+iced-x86 = { version = "1.21", default-features = false, features = ["decoder", "intel", "gas", "masm", "nasm", "exhaustive_enums", "no_std"], optional = true }
+msvc-demangler = { version = "0.11", optional = true }
 
 # arm
-unarm = { version = "1.6", optional = true }
-arm-attr = { version = "0.1", optional = true }
+unarm = { version = "1.9", optional = true }
+arm-attr = { version = "0.2", optional = true }
 
 # arm64
-yaxpeax-arch = { version = "0.3", default-features = false, features = ["std"], optional = true }
-yaxpeax-arm = { version = "0.3", default-features = false, features = ["std"], optional = true }
+yaxpeax-arch = { version = "0.3", default-features = false, optional = true }
+yaxpeax-arm = { version = "0.3", default-features = false, optional = true }
 
 # build
-notify = { version = "8.0.0", optional = true }
+notify = { version = "8.1.0", optional = true }
 notify-debouncer-full = { version = "0.5.0", optional = true }
 shell-escape = { version = "0.1", optional = true }
-tempfile = { version = "3.15", optional = true }
+tempfile = { version = "3.20", optional = true }
 time = { version = "0.3", optional = true }
+encoding_rs = { version = "0.8.35", optional = true }
 
 [target.'cfg(windows)'.dependencies]
-path-slash = { version = "0.2", optional = true }
-winapi = { version = "0.3", optional = true }
+winapi = { version = "0.3", optional = true, features = ["winbase"] }
 
 # For Linux static binaries, use rustls
 [target.'cfg(target_os = "linux")'.dependencies]
@@ -191,11 +194,16 @@ self_update = { version = "0.42", optional = true }
 
 [build-dependencies]
 heck = { version = "0.5", optional = true }
-pbjson-build = { version = "0.7", optional = true }
+pbjson-build = { version = "0.8", optional = true }
 prettyplease = { version = "0.2", optional = true }
 proc-macro2 = { version = "1.0", optional = true }
-prost-build = { version = "0.13", optional = true }
+prost-build = { version = "0.14", optional = true }
 quote = { version = "1.0", optional = true }
-serde = { version = "1.0", features = ["derive"], optional = true }
-serde_json = { version = "1.0", optional = true }
+serde = { version = "1.0", features = ["derive"] }
+serde_json = { version = "1.0" }
 syn = { version = "2.0", optional = true }
+
+[dev-dependencies]
+# Enable all features for tests
+objdiff-core = { path = ".", features = ["all"] }
+insta = "1.43"

objdiff-core/README.md

@@ -5,11 +5,12 @@ objdiff-core contains the core functionality of [objdiff](https://github.com/enc
 ## Crate feature flags
 
 - **`all`**: Enables all main features.
+- **`bindings`**: Enables serialization and deserialization of objdiff data structures.
 - **`config`**: Enables objdiff configuration file support.
 - **`dwarf`**: Enables extraction of line number information from DWARF debug sections.
-- **`mips`**: Enables the MIPS backend powered by [rabbitizer](https://github.com/Decompollaborate/rabbitizer). (Note: C library with Rust bindings)
-- **`ppc`**: Enables the PowerPC backend powered by [ppc750cl](https://github.com/encounter/ppc750cl).
-- **`x86`**: Enables the x86 backend powered by [iced-x86](https://crates.io/crates/iced-x86).
-- **`arm`**: Enables the ARM backend powered by [unarm](https://github.com/AetiasHax/unarm).
 - **`arm64`**: Enables the ARM64 backend powered by [yaxpeax-arm](https://github.com/iximeow/yaxpeax-arm).
-- **`bindings`**: Enables serialization and deserialization of objdiff data structures.
+- **`arm`**: Enables the ARM backend powered by [unarm](https://github.com/AetiasHax/unarm).
+- **`mips`**: Enables the MIPS backend powered by [rabbitizer](https://github.com/Decompollaborate/rabbitizer).
+- **`ppc`**: Enables the PowerPC backend powered by [powerpc](https://github.com/encounter/powerpc-rs).
+- **`superh`**: Enables the SuperH backend powered by an included disassembler.
+- **`x86`**: Enables the x86 backend powered by [iced-x86](https://crates.io/crates/iced-x86).

objdiff-core/build.rs

@@ -1,11 +1,12 @@
 #[cfg(feature = "any-arch")]
 mod config_gen;
 
-fn main() {
+fn main() -> Result<(), Box<dyn std::error::Error>> {
     #[cfg(feature = "bindings")]
     compile_protos();
     #[cfg(feature = "any-arch")]
     config_gen::generate_diff_config();
+    Ok(())
 }
 
 #[cfg(feature = "bindings")]
@@ -18,7 +19,15 @@ fn compile_protos() {
         .map(|m| m.modified().unwrap())
         .unwrap_or(std::time::SystemTime::UNIX_EPOCH);
     let mut run_protoc = false;
-    let proto_files = vec![root.join("diff.proto"), root.join("report.proto")];
+    let proto_files = root
+        .read_dir()
+        .unwrap()
+        .filter_map(|e| {
+            let e = e.unwrap();
+            let path = e.path();
+            (path.extension() == Some(std::ffi::OsStr::new("proto"))).then_some(path)
+        })
+        .collect::<Vec<_>>();
     for proto_file in &proto_files {
         println!("cargo:rerun-if-changed={}", proto_file.display());
         let mtime = match std::fs::metadata(proto_file) {
@@ -54,11 +63,14 @@ fn compile_protos() {
         }
     }
 
-    let descriptor_set = std::fs::read(descriptor_path).expect("Failed to read descriptor set");
-    pbjson_build::Builder::new()
-        .register_descriptors(&descriptor_set)
-        .expect("Failed to register descriptors")
-        .preserve_proto_field_names()
-        .build(&[".objdiff"])
-        .expect("Failed to build pbjson");
+    #[cfg(feature = "serde")]
+    {
+        let descriptor_set = std::fs::read(descriptor_path).expect("Failed to read descriptor set");
+        pbjson_build::Builder::new()
+            .register_descriptors(&descriptor_set)
+            .expect("Failed to register descriptors")
+            .preserve_proto_field_names()
+            .build(&[".objdiff"])
+            .expect("Failed to build pbjson");
+    }
 }

objdiff-core/config-schema.json

@@ -25,6 +25,20 @@
         }
       ]
     },
+    {
+      "id": "analyzeDataFlow",
+      "type": "boolean",
+      "default": false,
+      "name": "(Experimental) Perform data flow analysis",
+      "description": "Use data flow analysis to display known information about register contents where possible"
+    },
+    {
+      "id": "showDataFlow",
+      "type": "boolean",
+      "default": true,
+      "name": "Show data flow",
+      "description": "Show data flow analysis results in place of register name where present"
+    },
     {
       "id": "spaceBetweenArgs",
       "type": "boolean",
@@ -39,6 +53,13 @@
       "name": "Combine data sections",
       "description": "Combines data sections with equal names."
     },
+    {
+      "id": "combineTextSections",
+      "type": "boolean",
+      "default": false,
+      "name": "Combine text sections",
+      "description": "Combines all text sections into one."
+    },
     {
       "id": "arm.archVersion",
       "type": "choice",
@@ -180,6 +201,20 @@
         }
       ]
     },
+    {
+      "id": "mips.registerPrefix",
+      "type": "boolean",
+      "default": false,
+      "name": "Register '$' prefix",
+      "description": "Display MIPS register names with a '$' prefix."
+    },
+    {
+      "id": "ppc.calculatePoolRelocations",
+      "type": "boolean",
+      "default": true,
+      "name": "Calculate pooled data references",
+      "description": "Display pooled data references in functions as fake relocations."
+    },
     {
       "id": "x86.formatter",
       "type": "choice",
@@ -213,7 +248,8 @@
       "properties": [
         "functionRelocDiffs",
         "spaceBetweenArgs",
-        "combineDataSections"
+        "combineDataSections",
+        "combineTextSections"
       ]
     },
     {
@@ -234,7 +270,16 @@
       "name": "MIPS",
       "properties": [
         "mips.abi",
-        "mips.instrCategory"
+        "mips.instrCategory",
+        "mips.registerPrefix"
+      ]
+    },
+    {
+      "id": "ppc",
+      "name": "PowerPC",
+      "properties": [
+        "ppc.calculatePoolRelocations",
+        "analyzeDataFlow"
       ]
     },
     {
@@ -245,4 +290,4 @@
       ]
     }
   ]
-}
+}

objdiff-core/config_gen.rs

@@ -60,10 +60,10 @@ pub struct ConfigGroup {
 }
 
 fn build_doc(name: &str, description: Option<&str>) -> TokenStream {
-    let mut doc = format!(" {}", name);
+    let mut doc = format!(" {name}");
     let mut out = quote! { #[doc = #doc] };
     if let Some(description) = description {
-        doc = format!(" {}", description);
+        doc = format!(" {description}");
         out.extend(quote! { #[doc = ""] });
         out.extend(quote! { #[doc = #doc] });
     }
@@ -100,7 +100,7 @@ pub fn generate_diff_config() {
             }
             let value = &item.value;
             variants.extend(quote! {
-                #[serde(rename = #value, alias = #variant_name)]
+                #[cfg_attr(feature = "serde", serde(rename = #value, alias = #variant_name))]
                 #variant_ident,
             });
             full_variants.extend(quote! { #enum_ident::#variant_ident, });
@@ -134,8 +134,8 @@ pub fn generate_diff_config() {
             });
         }
         enums.extend(quote! {
-            #[derive(Copy, Clone, Debug, Default, Eq, PartialEq, Hash, serde::Deserialize, serde::Serialize)]
-            #[cfg_attr(feature = "wasm", derive(tsify_next::Tsify), tsify(from_wasm_abi))]
+            #[derive(Copy, Clone, Debug, Default, Eq, PartialEq, Hash)]
+            #[cfg_attr(feature = "serde", derive(serde::Deserialize, serde::Serialize))]
             pub enum #enum_ident {
                 #variants
             }
@@ -168,7 +168,7 @@ pub fn generate_diff_config() {
                     }
                 }
             }
-            impl std::str::FromStr for #enum_ident {
+            impl core::str::FromStr for #enum_ident {
                 type Err = ();
                 fn from_str(s: &str) -> Result<Self, Self::Err> {
                     #variant_from_str
@@ -244,7 +244,7 @@ pub fn generate_diff_config() {
                 let default = b.default;
                 if default {
                     property_fields.extend(quote! {
-                        #[serde(default = "default_true")]
+                        #[cfg_attr(feature = "serde", serde(default = "default_true"))]
                     });
                 }
                 property_fields.extend(quote! {
@@ -412,7 +412,7 @@ pub fn generate_diff_config() {
                 }
             }
         }
-        impl std::str::FromStr for ConfigPropertyId {
+        impl core::str::FromStr for ConfigPropertyId {
             type Err = ();
             fn from_str(s: &str) -> Result<Self, Self::Err> {
                 #config_property_id_from_str
@@ -433,6 +433,7 @@ pub fn generate_diff_config() {
             Choice(&'static str),
         }
         impl ConfigPropertyValue {
+            #[cfg(feature = "serde")]
             pub fn to_json(&self) -> serde_json::Value {
                 match self {
                     ConfigPropertyValue::Boolean(value) => serde_json::Value::Bool(*value),
@@ -440,17 +441,25 @@ pub fn generate_diff_config() {
                 }
             }
         }
+        impl core::fmt::Display for ConfigPropertyValue {
+            fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
+                match *self {
+                    ConfigPropertyValue::Boolean(value) => write!(f, "{value}"),
+                    ConfigPropertyValue::Choice(value) => f.write_str(value),
+                }
+            }
+        }
         #[derive(Clone, Debug)]
         pub enum ConfigPropertyKind {
             Boolean,
             Choice(&'static [ConfigEnumVariantInfo]),
         }
         #enums
+        #[cfg(feature = "serde")]
         #[inline(always)]
         fn default_true() -> bool { true }
-        #[derive(Clone, Debug, serde::Deserialize, serde::Serialize)]
-        #[cfg_attr(feature = "wasm", derive(tsify_next::Tsify), tsify(from_wasm_abi))]
-        #[serde(default)]
+        #[derive(Clone, Debug)]
+        #[cfg_attr(feature = "serde", derive(serde::Deserialize, serde::Serialize), serde(default))]
         pub struct DiffObjConfig {
             #property_fields
         }

objdiff-core/protos/changes.proto

@@ -0,0 +1,59 @@
+syntax = "proto3";
+
+import "report.proto";
+
+package objdiff.report;
+
+// A pair of reports to compare and generate changes
+message ChangesInput {
+  // The previous report
+  Report from = 1;
+  // The current report
+  Report to = 2;
+}
+
+// Changes between two reports
+message Changes {
+  // The progress info for the previous report
+  Measures from = 1;
+  // The progress info for the current report
+  Measures to = 2;
+  // Units that changed
+  repeated ChangeUnit units = 3;
+}
+
+// A changed unit
+message ChangeUnit {
+  // The name of the unit
+  string name = 1;
+  // The previous progress info (omitted if new)
+  optional Measures from = 2;
+  // The current progress info (omitted if removed)
+  optional Measures to = 3;
+  // Sections that changed
+  repeated ChangeItem sections = 4;
+  // Functions that changed
+  repeated ChangeItem functions = 5;
+  // Extra metadata for this unit
+  optional ReportUnitMetadata metadata = 6;
+}
+
+// A changed section or function
+message ChangeItem {
+  // The name of the item
+  string name = 1;
+  // The previous progress info (omitted if new)
+  optional ChangeItemInfo from = 2;
+  // The current progress info (omitted if removed)
+  optional ChangeItemInfo to = 3;
+  // Extra metadata for this item
+  optional ReportItemMetadata metadata = 4;
+}
+
+// Progress info for a section or function
+message ChangeItemInfo {
+  // The overall match percent for this item
+  float fuzzy_match_percent = 1;
+  // The size of the item in bytes
+  uint64 size = 2;
+}

objdiff-core/protos/diff.proto

@@ -1,170 +0,0 @@
-syntax = "proto3";
-
-package objdiff.diff;
-
-// A symbol
-message Symbol {
-  // Name of the symbol
-  string name = 1;
-  // Demangled name of the symbol
-  optional string demangled_name = 2;
-  // Symbol address
-  uint64 address = 3;
-  // Symbol size
-  uint64 size = 4;
-  // Bitmask of SymbolFlag
-  uint32 flags = 5;
-}
-
-// Symbol visibility flags
-enum SymbolFlag {
-  SYMBOL_NONE = 0;
-  SYMBOL_GLOBAL = 1;
-  SYMBOL_LOCAL = 2;
-  SYMBOL_WEAK = 4;
-  SYMBOL_COMMON = 8;
-  SYMBOL_HIDDEN = 16;
-}
-
-// A single parsed instruction
-message Instruction {
-  // Instruction address
-  uint64 address = 1;
-  // Instruction size
-  uint32 size = 2;
-  // Instruction opcode
-  uint32 opcode = 3;
-  // Instruction mnemonic
-  string mnemonic = 4;
-  // Instruction formatted string
-  string formatted = 5;
-  // Original (unsimplified) instruction string
-  optional string original = 6;
-  // Instruction arguments
-  repeated Argument arguments = 7;
-  // Instruction relocation
-  optional Relocation relocation = 8;
-  // Instruction branch destination
-  optional uint64 branch_dest = 9;
-  // Instruction line number
-  optional uint32 line_number = 10;
-}
-
-// An instruction argument
-message Argument {
-  oneof value {
-    // Plain text
-    string plain_text = 1;
-    // Value
-    ArgumentValue argument = 2;
-    // Relocation
-    ArgumentRelocation relocation = 3;
-    // Branch destination
-    uint64 branch_dest = 4;
-  }
-}
-
-// An instruction argument value
-message ArgumentValue {
-  oneof value {
-    // Signed integer
-    int64 signed = 1;
-    // Unsigned integer
-    uint64 unsigned = 2;
-    // Opaque value
-    string opaque = 3;
-  }
-}
-
-// Marker type for relocation arguments
-message ArgumentRelocation {
-}
-
-message Relocation {
-  uint32 type = 1;
-  string type_name = 2;
-  RelocationTarget target = 3;
-}
-
-message RelocationTarget {
-  Symbol symbol = 1;
-  int64 addend = 2;
-}
-
-message InstructionDiff {
-  DiffKind diff_kind = 1;
-  optional Instruction instruction = 2;
-  optional InstructionBranchFrom branch_from = 3;
-  optional InstructionBranchTo branch_to = 4;
-  repeated ArgumentDiff arg_diff = 5;
-}
-
-message ArgumentDiff {
-  optional uint32 diff_index = 1;
-}
-
-enum DiffKind {
-  DIFF_NONE = 0;
-  DIFF_REPLACE = 1;
-  DIFF_DELETE = 2;
-  DIFF_INSERT = 3;
-  DIFF_OP_MISMATCH = 4;
-  DIFF_ARG_MISMATCH = 5;
-}
-
-message InstructionBranchFrom {
-  repeated uint32 instruction_index = 1;
-  uint32 branch_index = 2;
-}
-
-message InstructionBranchTo {
-  uint32 instruction_index = 1;
-  uint32 branch_index = 2;
-}
-
-message SymbolRef {
-  optional uint32 section_index = 1;
-  uint32 symbol_index = 2;
-}
-
-message SymbolDiff {
-  Symbol symbol = 1;
-  repeated InstructionDiff instructions = 2;
-  optional float match_percent = 3;
-  // The symbol ref in the _other_ object that this symbol was diffed against
-  optional SymbolRef target = 5;
-}
-
-message DataDiff {
-  DiffKind kind = 1;
-  bytes data = 2;
-  // May be larger than data
-  uint64 size = 3;
-}
-
-message SectionDiff {
-  string name = 1;
-  SectionKind kind = 2;
-  uint64 size = 3;
-  uint64 address = 4;
-  repeated SymbolDiff symbols = 5;
-  repeated DataDiff data = 6;
-  optional float match_percent = 7;
-}
-
-enum SectionKind {
-  SECTION_UNKNOWN = 0;
-  SECTION_TEXT = 1;
-  SECTION_DATA = 2;
-  SECTION_BSS = 3;
-  SECTION_COMMON = 4;
-}
-
-message ObjectDiff {
-  repeated SectionDiff sections = 1;
-}
-
-message DiffResult {
-  optional ObjectDiff left = 1;
-  optional ObjectDiff right = 2;
-}

objdiff-core/protos/report.proto

@@ -2,6 +2,18 @@ syntax = "proto3";
 
 package objdiff.report;
 
+// Project progress report
+message Report {
+  // Overall progress info
+  Measures measures = 1;
+  // Units within this report
+  repeated ReportUnit units = 2;
+  // Report version
+  uint32 version = 3;
+  // Progress categories
+  repeated ReportCategory categories = 4;
+}
+
 // Progress info for a report or unit
 message Measures {
   // Overall match percent, including partially matched functions and data
@@ -38,18 +50,6 @@ message Measures {
   uint32 complete_units = 16;
 }
 
-// Project progress report
-message Report {
-  // Overall progress info
-  Measures measures = 1;
-  // Units within this report
-  repeated ReportUnit units = 2;
-  // Report version
-  uint32 version = 3;
-  // Progress categories
-  repeated ReportCategory categories = 4;
-}
-
 message ReportCategory {
   // The ID of the category
   string id = 1;
@@ -99,6 +99,8 @@ message ReportItem {
   float fuzzy_match_percent = 3;
   // Extra metadata for this item
   optional ReportItemMetadata metadata = 4;
+  // Address of the item (section-relative offset)
+  optional uint64 address = 5;
 }
 
 // Extra metadata for an item
@@ -108,57 +110,3 @@ message ReportItemMetadata {
   // The virtual address of the function or section
   optional uint64 virtual_address = 2;
 }
-
-// A pair of reports to compare and generate changes
-message ChangesInput {
-  // The previous report
-  Report from = 1;
-  // The current report
-  Report to = 2;
-}
-
-// Changes between two reports
-message Changes {
-  // The progress info for the previous report
-  Measures from = 1;
-  // The progress info for the current report
-  Measures to = 2;
-  // Units that changed
-  repeated ChangeUnit units = 3;
-}
-
-// A changed unit
-message ChangeUnit {
-  // The name of the unit
-  string name = 1;
-  // The previous progress info (omitted if new)
-  optional Measures from = 2;
-  // The current progress info (omitted if removed)
-  optional Measures to = 3;
-  // Sections that changed
-  repeated ChangeItem sections = 4;
-  // Functions that changed
-  repeated ChangeItem functions = 5;
-  // Extra metadata for this unit
-  optional ReportUnitMetadata metadata = 6;
-}
-
-// A changed section or function
-message ChangeItem {
-  // The name of the item
-  string name = 1;
-  // The previous progress info (omitted if new)
-  optional ChangeItemInfo from = 2;
-  // The current progress info (omitted if removed)
-  optional ChangeItemInfo to = 3;
-  // Extra metadata for this item
-  optional ReportItemMetadata metadata = 4;
-}
-
-// Progress info for a section or function
-message ChangeItemInfo {
-  // The overall match percent for this item
-  float fuzzy_match_percent = 1;
-  // The size of the item in bytes
-  uint64 size = 2;
-}

objdiff-core/src/arch/arm.rs

@@ -1,40 +1,39 @@
-use std::{
-    borrow::Cow,
-    collections::{BTreeMap, HashMap},
+use alloc::{
+    collections::BTreeMap,
+    format,
+    string::{String, ToString},
+    vec::Vec,
 };
 
-use anyhow::{bail, Result};
-use arm_attr::{enums::CpuArch, tag::Tag, BuildAttrs};
-use object::{
-    elf::{self, SHT_ARM_ATTRIBUTES},
-    Endian, File, Object, ObjectSection, ObjectSymbol, Relocation, RelocationFlags, SectionIndex,
-    SectionKind, Symbol, SymbolKind,
-};
-use unarm::{
-    args::{Argument, OffsetImm, OffsetReg, Register},
-    parse::{ArmVersion, ParseMode, Parser},
-    DisplayOptions, ParseFlags, ParsedIns, RegNames,
-};
+use anyhow::{Result, bail};
+use arm_attr::{BuildAttrs, enums::CpuArch, tag::Tag};
+use object::{Endian as _, Object as _, ObjectSection as _, ObjectSymbol as _, elf};
+use unarm::{args, arm, thumb};
 
 use crate::{
-    arch::{ObjArch, ProcessCodeResult},
-    diff::{ArmArchVersion, ArmR9Usage, DiffObjConfig},
-    obj::{ObjIns, ObjInsArg, ObjInsArgValue, ObjReloc, ObjSection},
+    arch::{Arch, RelocationOverride, RelocationOverrideTarget},
+    diff::{ArmArchVersion, ArmR9Usage, DiffObjConfig, display::InstructionPart},
+    obj::{
+        InstructionRef, Relocation, RelocationFlags, ResolvedInstructionRef, ResolvedRelocation,
+        Section, SectionKind, Symbol, SymbolFlag, SymbolFlagSet, SymbolKind,
+    },
 };
 
-pub struct ObjArchArm {
+#[derive(Debug)]
+pub struct ArchArm {
     /// Maps section index, to list of disasm modes (arm, thumb or data) sorted by address
-    disasm_modes: HashMap<SectionIndex, Vec<DisasmMode>>,
-    detected_version: Option<ArmVersion>,
+    disasm_modes: BTreeMap<usize, Vec<DisasmMode>>,
+    detected_version: Option<unarm::ArmVersion>,
     endianness: object::Endianness,
 }
 
-impl ObjArchArm {
-    pub fn new(file: &File) -> Result<Self> {
+impl ArchArm {
+    pub fn new(file: &object::File) -> Result<Self> {
         let endianness = file.endianness();
         match file {
-            File::Elf32(_) => {
-                let disasm_modes = Self::elf_get_mapping_symbols(file);
+            object::File::Elf32(_) => {
+                // The disasm_modes mapping is populated later in the post_init step so that we have access to merged sections.
+                let disasm_modes = BTreeMap::new();
                 let detected_version = Self::elf_detect_arm_version(file)?;
                 Ok(Self { disasm_modes, detected_version, endianness })
             }
@@ -42,10 +41,11 @@ impl ObjArchArm {
         }
     }
 
-    fn elf_detect_arm_version(file: &File) -> Result<Option<ArmVersion>> {
+    fn elf_detect_arm_version(file: &object::File) -> Result<Option<unarm::ArmVersion>> {
         // Check ARM attributes
         if let Some(arm_attrs) = file.sections().find(|s| {
-            s.kind() == SectionKind::Elf(SHT_ARM_ATTRIBUTES) && s.name() == Ok(".ARM.attributes")
+            s.kind() == object::SectionKind::Elf(elf::SHT_ARM_ATTRIBUTES)
+                && s.name() == Ok(".ARM.attributes")
         }) {
             let attr_data = arm_attrs.uncompressed_data()?;
             let build_attrs = BuildAttrs::new(&attr_data, match file.endianness() {
@@ -59,16 +59,12 @@ impl ObjArchArm {
                 }
                 // Only checking first CpuArch tag. Others may exist, but that's very unlikely.
                 let cpu_arch = subsection.into_public_tag_iter()?.find_map(|(_, tag)| {
-                    if let Tag::CpuArch(cpu_arch) = tag {
-                        Some(cpu_arch)
-                    } else {
-                        None
-                    }
+                    if let Tag::CpuArch(cpu_arch) = tag { Some(cpu_arch) } else { None }
                 });
                 match cpu_arch {
-                    Some(CpuArch::V4T) => return Ok(Some(ArmVersion::V4T)),
-                    Some(CpuArch::V5TE) => return Ok(Some(ArmVersion::V5Te)),
-                    Some(CpuArch::V6K) => return Ok(Some(ArmVersion::V6K)),
+                    Some(CpuArch::V4T) => return Ok(Some(unarm::ArmVersion::V4T)),
+                    Some(CpuArch::V5TE) => return Ok(Some(unarm::ArmVersion::V5Te)),
+                    Some(CpuArch::V6K) => return Ok(Some(unarm::ArmVersion::V6K)),
                     Some(arch) => bail!("ARM arch {} not supported", arch),
                     None => {}
                 };
@@ -78,193 +74,339 @@ impl ObjArchArm {
         Ok(None)
     }
 
-    fn elf_get_mapping_symbols(file: &File) -> HashMap<SectionIndex, Vec<DisasmMode>> {
-        file.sections()
-            .filter(|s| s.kind() == SectionKind::Text)
-            .map(|s| {
-                let index = s.index();
-                let mut mapping_symbols: Vec<_> = file
-                    .symbols()
-                    .filter(|s| s.section_index().map(|i| i == index).unwrap_or(false))
-                    .filter_map(|s| DisasmMode::from_symbol(&s))
+    fn get_mapping_symbols(
+        sections: &[Section],
+        symbols: &[Symbol],
+    ) -> BTreeMap<usize, Vec<DisasmMode>> {
+        sections
+            .iter()
+            .enumerate()
+            .filter(|(_, section)| section.kind == SectionKind::Code)
+            .map(|(index, _)| {
+                let mut mapping_symbols: Vec<_> = symbols
+                    .iter()
+                    .filter(|s| s.section.map(|i| i == index).unwrap_or(false))
+                    .filter_map(DisasmMode::from_symbol)
                     .collect();
                 mapping_symbols.sort_unstable_by_key(|x| x.address);
-                (s.index(), mapping_symbols)
+                (index, mapping_symbols)
             })
             .collect()
     }
-}
 
-impl ObjArch for ObjArchArm {
-    fn symbol_address(&self, symbol: &Symbol) -> u64 {
-        let address = symbol.address();
-        if symbol.kind() == SymbolKind::Text {
-            address & !1
-        } else {
-            address
+    fn parse_flags(&self, diff_config: &DiffObjConfig) -> unarm::ParseFlags {
+        unarm::ParseFlags {
+            ual: diff_config.arm_unified_syntax,
+            version: match diff_config.arm_arch_version {
+                ArmArchVersion::Auto => self.detected_version.unwrap_or(unarm::ArmVersion::V5Te),
+                ArmArchVersion::V4t => unarm::ArmVersion::V4T,
+                ArmArchVersion::V5te => unarm::ArmVersion::V5Te,
+                ArmArchVersion::V6k => unarm::ArmVersion::V6K,
+            },
         }
     }
 
-    fn process_code(
-        &self,
-        address: u64,
-        code: &[u8],
-        section_index: usize,
-        relocations: &[ObjReloc],
-        line_info: &BTreeMap<u64, u32>,
-        config: &DiffObjConfig,
-    ) -> Result<ProcessCodeResult> {
-        let start_addr = address as u32;
-        let end_addr = start_addr + code.len() as u32;
-
-        // Mapping symbols decide what kind of data comes after it. $a for ARM code, $t for Thumb code and $d for data.
-        let fallback_mappings = [DisasmMode { address: start_addr, mapping: ParseMode::Arm }];
-        let mapping_symbols = self
-            .disasm_modes
-            .get(&SectionIndex(section_index))
-            .map(|x| x.as_slice())
-            .unwrap_or(&fallback_mappings);
-        let first_mapping_idx = mapping_symbols
-            .binary_search_by_key(&start_addr, |x| x.address)
-            .unwrap_or_else(|idx| idx - 1);
-        let first_mapping = mapping_symbols[first_mapping_idx].mapping;
-
-        let mut mappings_iter =
-            mapping_symbols.iter().skip(first_mapping_idx + 1).take_while(|x| x.address < end_addr);
-        let mut next_mapping = mappings_iter.next();
-
-        let ins_count = code.len() / first_mapping.instruction_size(start_addr);
-        let mut ops = Vec::<u16>::with_capacity(ins_count);
-        let mut insts = Vec::<ObjIns>::with_capacity(ins_count);
-
-        let version = match config.arm_arch_version {
-            ArmArchVersion::Auto => self.detected_version.unwrap_or(ArmVersion::V5Te),
-            ArmArchVersion::V4t => ArmVersion::V4T,
-            ArmArchVersion::V5te => ArmVersion::V5Te,
-            ArmArchVersion::V6k => ArmVersion::V6K,
-        };
-        let endian = match self.endianness {
-            object::Endianness::Little => unarm::Endian::Little,
-            object::Endianness::Big => unarm::Endian::Big,
-        };
-
-        let parse_flags = ParseFlags { ual: config.arm_unified_syntax, version };
-
-        let mut parser = Parser::new(first_mapping, start_addr, endian, parse_flags, code);
-
-        let display_options = DisplayOptions {
-            reg_names: RegNames {
-                av_registers: config.arm_av_registers,
-                r9_use: match config.arm_r9_usage {
+    fn display_options(&self, diff_config: &DiffObjConfig) -> unarm::DisplayOptions {
+        unarm::DisplayOptions {
+            reg_names: unarm::RegNames {
+                av_registers: diff_config.arm_av_registers,
+                r9_use: match diff_config.arm_r9_usage {
                     ArmR9Usage::GeneralPurpose => unarm::R9Use::GeneralPurpose,
                     ArmR9Usage::Sb => unarm::R9Use::Pid,
                     ArmR9Usage::Tr => unarm::R9Use::Tls,
                 },
-                explicit_stack_limit: config.arm_sl_usage,
-                frame_pointer: config.arm_fp_usage,
-                ip: config.arm_ip_usage,
+                explicit_stack_limit: diff_config.arm_sl_usage,
+                frame_pointer: diff_config.arm_fp_usage,
+                ip: diff_config.arm_ip_usage,
             },
-        };
-
-        while let Some((address, ins, parsed_ins)) = parser.next() {
-            if let Some(next) = next_mapping {
-                let next_address = parser.address;
-                if next_address >= next.address {
-                    // Change mapping
-                    parser.mode = next.mapping;
-                    next_mapping = mappings_iter.next();
-                }
-            }
-            let line = line_info.range(..=address as u64).last().map(|(_, &b)| b);
-
-            let reloc = relocations.iter().find(|r| (r.address as u32 & !1) == address).cloned();
-
-            let mut reloc_arg = None;
-            if let Some(reloc) = &reloc {
-                match reloc.flags {
-                    // Calls
-                    RelocationFlags::Elf { r_type: elf::R_ARM_THM_XPC22 }
-                    | RelocationFlags::Elf { r_type: elf::R_ARM_THM_PC22 }
-                    | RelocationFlags::Elf { r_type: elf::R_ARM_PC24 }
-                    | RelocationFlags::Elf { r_type: elf::R_ARM_XPC25 }
-                    | RelocationFlags::Elf { r_type: elf::R_ARM_CALL } => {
-                        reloc_arg = parsed_ins
-                            .args
-                            .iter()
-                            .rposition(|a| matches!(a, Argument::BranchDest(_)));
-                    }
-                    // Data
-                    RelocationFlags::Elf { r_type: elf::R_ARM_ABS32 } => {
-                        reloc_arg =
-                            parsed_ins.args.iter().rposition(|a| matches!(a, Argument::UImm(_)));
-                    }
-                    _ => (),
-                }
-            };
-
-            let (args, branch_dest) = if reloc.is_some() && parser.mode == ParseMode::Data {
-                (vec![ObjInsArg::Reloc], None)
-            } else {
-                push_args(&parsed_ins, config, reloc_arg, address, display_options)?
-            };
-
-            ops.push(ins.opcode_id());
-            insts.push(ObjIns {
-                address: address as u64,
-                size: (parser.address - address) as u8,
-                op: ins.opcode_id(),
-                mnemonic: Cow::Borrowed(parsed_ins.mnemonic),
-                args,
-                reloc,
-                branch_dest,
-                line,
-                formatted: parsed_ins.display(display_options).to_string(),
-                orig: None,
-            });
         }
-
-        Ok(ProcessCodeResult { ops, insts })
     }
 
-    fn implcit_addend(
+    fn parse_ins_ref(
+        &self,
+        ins_ref: InstructionRef,
+        code: &[u8],
+        diff_config: &DiffObjConfig,
+    ) -> Result<(unarm::Ins, unarm::ParsedIns)> {
+        if ins_ref.opcode == thumb::Opcode::BlH as u16 && ins_ref.size == 4 {
+            // Special case: combined thumb BL instruction
+            let parse_flags = self.parse_flags(diff_config);
+            let first_ins = thumb::Ins {
+                code: match self.endianness {
+                    object::Endianness::Little => u16::from_le_bytes([code[0], code[1]]),
+                    object::Endianness::Big => u16::from_be_bytes([code[0], code[1]]),
+                } as u32,
+                op: thumb::Opcode::BlH,
+            };
+            let second_ins = thumb::Ins::new(
+                match self.endianness {
+                    object::Endianness::Little => u16::from_le_bytes([code[2], code[3]]),
+                    object::Endianness::Big => u16::from_be_bytes([code[2], code[3]]),
+                } as u32,
+                &parse_flags,
+            );
+            let first_parsed = first_ins.parse(&parse_flags);
+            let second_parsed = second_ins.parse(&parse_flags);
+            return Ok((
+                unarm::Ins::Thumb(first_ins),
+                first_parsed.combine_thumb_bl(&second_parsed),
+            ));
+        }
+
+        let code = match (self.endianness, ins_ref.size) {
+            (object::Endianness::Little, 2) => u16::from_le_bytes([code[0], code[1]]) as u32,
+            (object::Endianness::Little, 4) => {
+                u32::from_le_bytes([code[0], code[1], code[2], code[3]])
+            }
+            (object::Endianness::Big, 2) => u16::from_be_bytes([code[0], code[1]]) as u32,
+            (object::Endianness::Big, 4) => {
+                u32::from_be_bytes([code[0], code[1], code[2], code[3]])
+            }
+            _ => bail!("Invalid instruction size {}", ins_ref.size),
+        };
+        let (ins, parsed_ins) = if ins_ref.opcode == u16::MAX {
+            let mut args = args::Arguments::default();
+            args[0] = args::Argument::UImm(code);
+            let mnemonic = if ins_ref.size == 4 { ".word" } else { ".hword" };
+            (unarm::Ins::Data, unarm::ParsedIns { mnemonic, args })
+        } else if ins_ref.opcode & (1 << 15) != 0 {
+            let ins = arm::Ins { code, op: arm::Opcode::from(ins_ref.opcode as u8) };
+            let parsed = ins.parse(&self.parse_flags(diff_config));
+            (unarm::Ins::Arm(ins), parsed)
+        } else {
+            let ins = thumb::Ins { code, op: thumb::Opcode::from(ins_ref.opcode as u8) };
+            let parsed = ins.parse(&self.parse_flags(diff_config));
+            (unarm::Ins::Thumb(ins), parsed)
+        };
+        Ok((ins, parsed_ins))
+    }
+}
+
+impl Arch for ArchArm {
+    fn post_init(&mut self, sections: &[Section], symbols: &[Symbol]) {
+        self.disasm_modes = Self::get_mapping_symbols(sections, symbols);
+    }
+
+    fn scan_instructions_internal(
         &self,
-        _file: &File<'_>,
-        section: &ObjSection,
         address: u64,
-        reloc: &Relocation,
-    ) -> Result<i64> {
-        let address = address as usize;
-        Ok(match reloc.flags() {
-            // ARM calls
-            RelocationFlags::Elf { r_type: elf::R_ARM_PC24 }
-            | RelocationFlags::Elf { r_type: elf::R_ARM_XPC25 }
-            | RelocationFlags::Elf { r_type: elf::R_ARM_CALL } => {
-                let data = section.data[address..address + 4].try_into()?;
-                let addend = self.endianness.read_i32_bytes(data);
-                let imm24 = addend & 0xffffff;
-                (imm24 << 2) << 8 >> 8
+        code: &[u8],
+        section_index: usize,
+        _relocations: &[Relocation],
+        diff_config: &DiffObjConfig,
+    ) -> Result<Vec<InstructionRef>> {
+        let start_addr = address as u32;
+        let end_addr = start_addr + code.len() as u32;
+
+        // Mapping symbols decide what kind of data comes after it. $a for ARM code, $t for Thumb code and $d for data.
+        let fallback_mappings =
+            [DisasmMode { address: start_addr, mapping: unarm::ParseMode::Arm }];
+        let mapping_symbols = self
+            .disasm_modes
+            .get(&section_index)
+            .map(|x| x.as_slice())
+            .unwrap_or(&fallback_mappings);
+        let first_mapping_idx = mapping_symbols
+            .binary_search_by_key(&start_addr, |x| x.address)
+            .unwrap_or_else(|idx| idx.saturating_sub(1));
+        let mut mode = mapping_symbols[first_mapping_idx].mapping;
+
+        let mut mappings_iter = mapping_symbols
+            .iter()
+            .copied()
+            .skip(first_mapping_idx + 1)
+            .take_while(|x| x.address < end_addr);
+        let mut next_mapping = mappings_iter.next();
+
+        let ins_count = code.len() / mode.instruction_size(start_addr);
+        let mut ops = Vec::<InstructionRef>::with_capacity(ins_count);
+
+        let parse_flags = self.parse_flags(diff_config);
+
+        let mut address = start_addr;
+        while address < end_addr {
+            while let Some(next) = next_mapping.filter(|x| address >= x.address) {
+                // Change mapping
+                mode = next.mapping;
+                next_mapping = mappings_iter.next();
             }
 
-            // Thumb calls
-            RelocationFlags::Elf { r_type: elf::R_ARM_THM_PC22 }
-            | RelocationFlags::Elf { r_type: elf::R_ARM_THM_XPC22 } => {
-                let data = section.data[address..address + 2].try_into()?;
-                let high = self.endianness.read_i16_bytes(data) as i32;
-                let data = section.data[address + 2..address + 4].try_into()?;
-                let low = self.endianness.read_i16_bytes(data) as i32;
-
-                let imm22 = ((high & 0x7ff) << 11) | (low & 0x7ff);
-                (imm22 << 1) << 9 >> 9
+            let mut ins_size = mode.instruction_size(address);
+            let data = &code[(address - start_addr) as usize..];
+            if data.len() < ins_size {
+                // Push the remainder as data
+                ops.push(InstructionRef {
+                    address: address as u64,
+                    size: data.len() as u8,
+                    opcode: u16::MAX,
+                    branch_dest: None,
+                });
+                break;
             }
+            let code = match (self.endianness, ins_size) {
+                (object::Endianness::Little, 2) => u16::from_le_bytes([data[0], data[1]]) as u32,
+                (object::Endianness::Little, 4) => {
+                    u32::from_le_bytes([data[0], data[1], data[2], data[3]])
+                }
+                (object::Endianness::Big, 2) => u16::from_be_bytes([data[0], data[1]]) as u32,
+                (object::Endianness::Big, 4) => {
+                    u32::from_be_bytes([data[0], data[1], data[2], data[3]])
+                }
+                _ => {
+                    // Invalid instruction size
+                    ops.push(InstructionRef {
+                        address: address as u64,
+                        size: ins_size as u8,
+                        opcode: u16::MAX,
+                        branch_dest: None,
+                    });
+                    address += ins_size as u32;
+                    continue;
+                }
+            };
 
-            // Data
-            RelocationFlags::Elf { r_type: elf::R_ARM_ABS32 } => {
-                let data = section.data[address..address + 4].try_into()?;
-                self.endianness.read_i32_bytes(data)
+            let (opcode, branch_dest) = match mode {
+                unarm::ParseMode::Arm => {
+                    let ins = arm::Ins::new(code, &parse_flags);
+                    let opcode = ins.op as u16 | (1 << 15);
+                    let branch_dest = match ins.op {
+                        arm::Opcode::B | arm::Opcode::Bl => {
+                            address.checked_add_signed(ins.field_branch_offset())
+                        }
+                        arm::Opcode::BlxI => address.checked_add_signed(ins.field_blx_offset()),
+                        _ => None,
+                    };
+                    (opcode, branch_dest)
+                }
+                unarm::ParseMode::Thumb => {
+                    let ins = thumb::Ins::new(code, &parse_flags);
+                    let opcode = ins.op as u16;
+                    let branch_dest = match ins.op {
+                        thumb::Opcode::B | thumb::Opcode::Bl => {
+                            address.checked_add_signed(ins.field_branch_offset_8())
+                        }
+                        thumb::Opcode::BlH if data.len() >= 4 => {
+                            // Combine BL instructions
+                            let second_ins = thumb::Ins::new(
+                                match self.endianness {
+                                    object::Endianness::Little => {
+                                        u16::from_le_bytes([data[2], data[3]]) as u32
+                                    }
+                                    object::Endianness::Big => {
+                                        u16::from_be_bytes([data[2], data[3]]) as u32
+                                    }
+                                },
+                                &parse_flags,
+                            );
+                            if let Some(low) = match second_ins.op {
+                                thumb::Opcode::Bl => Some(second_ins.field_low_branch_offset_11()),
+                                thumb::Opcode::BlxI => Some(second_ins.field_low_blx_offset_11()),
+                                _ => None,
+                            } {
+                                ins_size = 4;
+                                address.checked_add_signed(
+                                    (ins.field_high_branch_offset_11() + (low as i32)) << 9 >> 9,
+                                )
+                            } else {
+                                None
+                            }
+                        }
+                        thumb::Opcode::BLong => {
+                            address.checked_add_signed(ins.field_branch_offset_11())
+                        }
+                        _ => None,
+                    };
+                    (opcode, branch_dest)
+                }
+                unarm::ParseMode::Data => (u16::MAX, None),
+            };
+
+            ops.push(InstructionRef {
+                address: address as u64,
+                size: ins_size as u8,
+                opcode,
+                branch_dest: branch_dest.map(|x| x as u64),
+            });
+            address += ins_size as u32;
+        }
+
+        Ok(ops)
+    }
+
+    fn display_instruction(
+        &self,
+        resolved: ResolvedInstructionRef,
+        diff_config: &DiffObjConfig,
+        cb: &mut dyn FnMut(InstructionPart) -> Result<()>,
+    ) -> Result<()> {
+        let (ins, parsed_ins) = self.parse_ins_ref(resolved.ins_ref, resolved.code, diff_config)?;
+        cb(InstructionPart::opcode(parsed_ins.mnemonic, resolved.ins_ref.opcode))?;
+        if ins == unarm::Ins::Data && resolved.relocation.is_some() {
+            cb(InstructionPart::reloc())?;
+        } else {
+            push_args(
+                ins,
+                &parsed_ins,
+                resolved.relocation,
+                resolved.ins_ref.address as u32,
+                self.display_options(diff_config),
+                cb,
+            )?;
+        }
+        Ok(())
+    }
+
+    fn relocation_override(
+        &self,
+        _file: &object::File<'_>,
+        section: &object::Section,
+        address: u64,
+        relocation: &object::Relocation,
+    ) -> Result<Option<RelocationOverride>> {
+        match relocation.flags() {
+            // Handle ELF implicit relocations
+            object::RelocationFlags::Elf { r_type } => {
+                if relocation.has_implicit_addend() {
+                    let section_data = section.data()?;
+                    let address = address as usize;
+                    let addend = match r_type {
+                        // ARM calls
+                        elf::R_ARM_PC24 | elf::R_ARM_XPC25 | elf::R_ARM_CALL => {
+                            let data = section_data[address..address + 4].try_into()?;
+                            let addend = self.endianness.read_i32_bytes(data);
+                            let imm24 = addend & 0xffffff;
+                            (imm24 << 2) << 8 >> 8
+                        }
+
+                        // Thumb calls
+                        elf::R_ARM_THM_PC22 | elf::R_ARM_THM_XPC22 => {
+                            let data = section_data[address..address + 2].try_into()?;
+                            let high = self.endianness.read_i16_bytes(data) as i32;
+                            let data = section_data[address + 2..address + 4].try_into()?;
+                            let low = self.endianness.read_i16_bytes(data) as i32;
+
+                            let imm22 = ((high & 0x7ff) << 11) | (low & 0x7ff);
+                            (imm22 << 1) << 9 >> 9
+                        }
+
+                        // Data
+                        elf::R_ARM_ABS32 => {
+                            let data = section_data[address..address + 4].try_into()?;
+                            self.endianness.read_i32_bytes(data)
+                        }
+
+                        flags => bail!("Unsupported ARM implicit relocation {flags:?}"),
+                    };
+                    Ok(Some(RelocationOverride {
+                        target: RelocationOverrideTarget::Keep,
+                        addend: addend as i64,
+                    }))
+                } else {
+                    Ok(None)
+                }
             }
-
-            flags => bail!("Unsupported ARM implicit relocation {flags:?}"),
-        } as i64)
+            _ => Ok(None),
+        }
     }
 
     fn demangle(&self, name: &str) -> Option<String> {
@@ -273,64 +415,120 @@ impl ObjArch for ObjArchArm {
             .and_then(|s| s.demangle(&cpp_demangle::DemangleOptions::default()).ok())
     }
 
-    fn display_reloc(&self, flags: RelocationFlags) -> Cow<'static, str> {
-        Cow::Owned(format!("<{flags:?}>"))
+    fn reloc_name(&self, flags: RelocationFlags) -> Option<&'static str> {
+        match flags {
+            RelocationFlags::Elf(r_type) => match r_type {
+                elf::R_ARM_NONE => Some("R_ARM_NONE"),
+                elf::R_ARM_ABS32 => Some("R_ARM_ABS32"),
+                elf::R_ARM_REL32 => Some("R_ARM_REL32"),
+                elf::R_ARM_ABS16 => Some("R_ARM_ABS16"),
+                elf::R_ARM_ABS8 => Some("R_ARM_ABS8"),
+                elf::R_ARM_THM_PC22 => Some("R_ARM_THM_PC22"),
+                elf::R_ARM_THM_XPC22 => Some("R_ARM_THM_XPC22"),
+                elf::R_ARM_PC24 => Some("R_ARM_PC24"),
+                elf::R_ARM_XPC25 => Some("R_ARM_XPC25"),
+                elf::R_ARM_CALL => Some("R_ARM_CALL"),
+                _ => None,
+            },
+            _ => None,
+        }
     }
 
-    fn get_reloc_byte_size(&self, flags: RelocationFlags) -> usize {
+    fn data_reloc_size(&self, flags: RelocationFlags) -> usize {
         match flags {
-            RelocationFlags::Elf { r_type } => match r_type {
+            RelocationFlags::Elf(r_type) => match r_type {
+                elf::R_ARM_NONE => 0,
                 elf::R_ARM_ABS32 => 4,
                 elf::R_ARM_REL32 => 4,
                 elf::R_ARM_ABS16 => 2,
                 elf::R_ARM_ABS8 => 1,
+                elf::R_ARM_THM_PC22 => 4,
+                elf::R_ARM_THM_XPC22 => 4,
+                elf::R_ARM_PC24 => 4,
+                elf::R_ARM_XPC25 => 4,
+                elf::R_ARM_CALL => 4,
                 _ => 1,
             },
             _ => 1,
         }
     }
+
+    fn symbol_address(&self, address: u64, kind: SymbolKind) -> u64 {
+        if kind == SymbolKind::Function { address & !1 } else { address }
+    }
+
+    fn extra_symbol_flags(&self, symbol: &object::Symbol) -> SymbolFlagSet {
+        let mut flags = SymbolFlagSet::default();
+        if DisasmMode::from_object_symbol(symbol).is_some() {
+            flags |= SymbolFlag::Hidden;
+        }
+        flags
+    }
+
+    fn infer_function_size(
+        &self,
+        symbol: &Symbol,
+        section: &Section,
+        mut next_address: u64,
+    ) -> Result<u64> {
+        // Trim any trailing 4-byte zeroes from the end (padding)
+        while next_address >= symbol.address + 4
+            && let Some(data) = section.data_range(next_address - 4, 4)
+            && data == [0u8; 4]
+        {
+            next_address -= 4;
+        }
+        Ok(next_address.saturating_sub(symbol.address))
+    }
 }
 
 #[derive(Clone, Copy, Debug)]
 struct DisasmMode {
     address: u32,
-    mapping: ParseMode,
+    mapping: unarm::ParseMode,
 }
 
 impl DisasmMode {
-    fn from_symbol<'a>(sym: &Symbol<'a, '_, &'a [u8]>) -> Option<Self> {
-        if let Ok(name) = sym.name() {
-            ParseMode::from_mapping_symbol(name)
-                .map(|mapping| DisasmMode { address: sym.address() as u32, mapping })
-        } else {
-            None
-        }
+    fn from_object_symbol<'a>(sym: &object::Symbol<'a, '_, &'a [u8]>) -> Option<Self> {
+        sym.name()
+            .ok()
+            .and_then(unarm::ParseMode::from_mapping_symbol)
+            .map(|mapping| DisasmMode { address: sym.address() as u32, mapping })
+    }
+
+    fn from_symbol(sym: &Symbol) -> Option<Self> {
+        unarm::ParseMode::from_mapping_symbol(&sym.name)
+            .map(|mapping| DisasmMode { address: sym.address as u32, mapping })
     }
 }
 
 fn push_args(
-    parsed_ins: &ParsedIns,
-    config: &DiffObjConfig,
-    reloc_arg: Option<usize>,
+    ins: unarm::Ins,
+    parsed_ins: &unarm::ParsedIns,
+    relocation: Option<ResolvedRelocation>,
     cur_addr: u32,
-    display_options: DisplayOptions,
-) -> Result<(Vec<ObjInsArg>, Option<u64>)> {
-    let mut args = vec![];
-    let mut branch_dest = None;
+    display_options: unarm::DisplayOptions,
+    mut arg_cb: impl FnMut(InstructionPart) -> Result<()>,
+) -> Result<()> {
+    let reloc_arg = find_reloc_arg(parsed_ins, relocation);
     let mut writeback = false;
     let mut deref = false;
-    for (i, arg) in parsed_ins.args_iter().enumerate() {
+    for (i, &arg) in parsed_ins.args_iter().enumerate() {
         // Emit punctuation before separator
         if deref {
             match arg {
-                Argument::OffsetImm(OffsetImm { post_indexed: true, value: _ })
-                | Argument::OffsetReg(OffsetReg { add: _, post_indexed: true, reg: _ })
-                | Argument::CoOption(_) => {
+                args::Argument::OffsetImm(args::OffsetImm { post_indexed: true, value: _ })
+                | args::Argument::OffsetReg(args::OffsetReg {
+                    add: _,
+                    post_indexed: true,
+                    reg: _,
+                })
+                | args::Argument::CoOption(_) => {
                     deref = false;
-                    args.push(ObjInsArg::PlainText("]".into()));
+                    arg_cb(InstructionPart::basic("]"))?;
                     if writeback {
                         writeback = false;
-                        args.push(ObjInsArg::Arg(ObjInsArgValue::Opaque("!".into())));
+                        arg_cb(InstructionPart::opaque("!"))?;
                     }
                 }
                 _ => {}
@@ -338,117 +536,169 @@ fn push_args(
         }
 
         if i > 0 {
-            args.push(ObjInsArg::PlainText(config.separator().into()));
+            arg_cb(InstructionPart::separator())?;
         }
 
         if reloc_arg == Some(i) {
-            args.push(ObjInsArg::Reloc);
+            arg_cb(InstructionPart::reloc())?;
         } else {
             match arg {
-                Argument::None => {}
-                Argument::Reg(reg) => {
+                args::Argument::None => {}
+                args::Argument::Reg(reg) => {
                     if reg.deref {
                         deref = true;
-                        args.push(ObjInsArg::PlainText("[".into()));
+                        arg_cb(InstructionPart::basic("["))?;
                     }
-                    args.push(ObjInsArg::Arg(ObjInsArgValue::Opaque(
-                        reg.reg.display(display_options.reg_names).to_string().into(),
-                    )));
+                    arg_cb(InstructionPart::opaque(
+                        reg.reg.display(display_options.reg_names).to_string(),
+                    ))?;
                     if reg.writeback {
                         if reg.deref {
                             writeback = true;
                         } else {
-                            args.push(ObjInsArg::Arg(ObjInsArgValue::Opaque("!".into())));
+                            arg_cb(InstructionPart::opaque("!"))?;
                         }
                     }
                 }
-                Argument::RegList(reg_list) => {
-                    args.push(ObjInsArg::PlainText("{".into()));
+                args::Argument::RegList(reg_list) => {
+                    arg_cb(InstructionPart::basic("{"))?;
                     let mut first = true;
                     for i in 0..16 {
                         if (reg_list.regs & (1 << i)) != 0 {
                             if !first {
-                                args.push(ObjInsArg::PlainText(config.separator().into()));
+                                arg_cb(InstructionPart::separator())?;
                             }
-                            args.push(ObjInsArg::Arg(ObjInsArgValue::Opaque(
-                                Register::parse(i)
+                            arg_cb(InstructionPart::opaque(
+                                args::Register::parse(i)
                                     .display(display_options.reg_names)
-                                    .to_string()
-                                    .into(),
-                            )));
+                                    .to_string(),
+                            ))?;
                             first = false;
                         }
                     }
-                    args.push(ObjInsArg::PlainText("}".into()));
+                    arg_cb(InstructionPart::basic("}"))?;
                     if reg_list.user_mode {
-                        args.push(ObjInsArg::Arg(ObjInsArgValue::Opaque("^".to_string().into())));
+                        arg_cb(InstructionPart::opaque("^"))?;
                     }
                 }
-                Argument::UImm(value) | Argument::CoOpcode(value) | Argument::SatImm(value) => {
-                    args.push(ObjInsArg::PlainText("#".into()));
-                    args.push(ObjInsArg::Arg(ObjInsArgValue::Unsigned(*value as u64)));
+                args::Argument::UImm(value)
+                | args::Argument::CoOpcode(value)
+                | args::Argument::SatImm(value) => {
+                    arg_cb(InstructionPart::basic("#"))?;
+                    arg_cb(InstructionPart::unsigned(value))?;
                 }
-                Argument::SImm(value)
-                | Argument::OffsetImm(OffsetImm { post_indexed: _, value }) => {
-                    args.push(ObjInsArg::PlainText("#".into()));
-                    args.push(ObjInsArg::Arg(ObjInsArgValue::Signed(*value as i64)));
+                args::Argument::SImm(value)
+                | args::Argument::OffsetImm(args::OffsetImm { post_indexed: _, value }) => {
+                    arg_cb(InstructionPart::basic("#"))?;
+                    arg_cb(InstructionPart::signed(value))?;
                 }
-                Argument::BranchDest(value) => {
-                    let dest = cur_addr.wrapping_add_signed(*value) as u64;
-                    args.push(ObjInsArg::BranchDest(dest));
-                    branch_dest = Some(dest);
+                args::Argument::BranchDest(value) => {
+                    arg_cb(InstructionPart::branch_dest(cur_addr.wrapping_add_signed(value)))?;
                 }
-                Argument::CoOption(value) => {
-                    args.push(ObjInsArg::PlainText("{".into()));
-                    args.push(ObjInsArg::Arg(ObjInsArgValue::Unsigned(*value as u64)));
-                    args.push(ObjInsArg::PlainText("}".into()));
+                args::Argument::CoOption(value) => {
+                    arg_cb(InstructionPart::basic("{"))?;
+                    arg_cb(InstructionPart::unsigned(value))?;
+                    arg_cb(InstructionPart::basic("}"))?;
                 }
-                Argument::CoprocNum(value) => {
-                    args.push(ObjInsArg::Arg(ObjInsArgValue::Opaque(format!("p{}", value).into())));
+                args::Argument::CoprocNum(value) => {
+                    arg_cb(InstructionPart::opaque(format!("p{value}")))?;
                 }
-                Argument::ShiftImm(shift) => {
-                    args.push(ObjInsArg::Arg(ObjInsArgValue::Opaque(shift.op.to_string().into())));
-                    args.push(ObjInsArg::PlainText(" #".into()));
-                    args.push(ObjInsArg::Arg(ObjInsArgValue::Unsigned(shift.imm as u64)));
+                args::Argument::ShiftImm(shift) => {
+                    arg_cb(InstructionPart::opaque(shift.op.to_string()))?;
+                    arg_cb(InstructionPart::basic(" #"))?;
+                    arg_cb(InstructionPart::unsigned(shift.imm))?;
                 }
-                Argument::ShiftReg(shift) => {
-                    args.push(ObjInsArg::Arg(ObjInsArgValue::Opaque(shift.op.to_string().into())));
-                    args.push(ObjInsArg::PlainText(" ".into()));
-                    args.push(ObjInsArg::Arg(ObjInsArgValue::Opaque(
-                        shift.reg.display(display_options.reg_names).to_string().into(),
-                    )));
+                args::Argument::ShiftReg(shift) => {
+                    arg_cb(InstructionPart::opaque(shift.op.to_string()))?;
+                    arg_cb(InstructionPart::basic(" "))?;
+                    arg_cb(InstructionPart::opaque(
+                        shift.reg.display(display_options.reg_names).to_string(),
+                    ))?;
                 }
-                Argument::OffsetReg(offset) => {
+                args::Argument::OffsetReg(offset) => {
                     if !offset.add {
-                        args.push(ObjInsArg::PlainText("-".into()));
+                        arg_cb(InstructionPart::basic("-"))?;
                     }
-                    args.push(ObjInsArg::Arg(ObjInsArgValue::Opaque(
-                        offset.reg.display(display_options.reg_names).to_string().into(),
-                    )));
+                    arg_cb(InstructionPart::opaque(
+                        offset.reg.display(display_options.reg_names).to_string(),
+                    ))?;
                 }
-                Argument::CpsrMode(mode) => {
-                    args.push(ObjInsArg::PlainText("#".into()));
-                    args.push(ObjInsArg::Arg(ObjInsArgValue::Unsigned(mode.mode as u64)));
+                args::Argument::CpsrMode(mode) => {
+                    arg_cb(InstructionPart::basic("#"))?;
+                    arg_cb(InstructionPart::unsigned(mode.mode))?;
                     if mode.writeback {
-                        args.push(ObjInsArg::Arg(ObjInsArgValue::Opaque("!".into())));
+                        arg_cb(InstructionPart::opaque("!"))?;
                     }
                 }
-                Argument::CoReg(_)
-                | Argument::StatusReg(_)
-                | Argument::StatusMask(_)
-                | Argument::Shift(_)
-                | Argument::CpsrFlags(_)
-                | Argument::Endian(_) => args.push(ObjInsArg::Arg(ObjInsArgValue::Opaque(
-                    arg.display(display_options, None).to_string().into(),
-                ))),
+                args::Argument::CoReg(_)
+                | args::Argument::StatusReg(_)
+                | args::Argument::StatusMask(_)
+                | args::Argument::Shift(_)
+                | args::Argument::CpsrFlags(_)
+                | args::Argument::Endian(_) => {
+                    arg_cb(InstructionPart::opaque(
+                        arg.display(display_options, None).to_string(),
+                    ))?;
+                }
             }
         }
     }
     if deref {
-        args.push(ObjInsArg::PlainText("]".into()));
+        arg_cb(InstructionPart::basic("]"))?;
         if writeback {
-            args.push(ObjInsArg::Arg(ObjInsArgValue::Opaque("!".into())));
+            arg_cb(InstructionPart::opaque("!"))?;
         }
     }
-    Ok((args, branch_dest))
+
+    let branch_dest = get_pc_relative_load_address(ins, cur_addr);
+    if let Some(branch_dest) = branch_dest {
+        arg_cb(InstructionPart::basic(" (->"))?;
+        arg_cb(InstructionPart::branch_dest(branch_dest))?;
+        arg_cb(InstructionPart::basic(")"))?;
+    }
+
+    Ok(())
+}
+
+fn find_reloc_arg(
+    parsed_ins: &unarm::ParsedIns,
+    relocation: Option<ResolvedRelocation>,
+) -> Option<usize> {
+    if let Some(resolved) = relocation {
+        match resolved.relocation.flags {
+            // Calls
+            RelocationFlags::Elf(elf::R_ARM_THM_XPC22)
+            | RelocationFlags::Elf(elf::R_ARM_THM_PC22)
+            | RelocationFlags::Elf(elf::R_ARM_PC24)
+            | RelocationFlags::Elf(elf::R_ARM_XPC25)
+            | RelocationFlags::Elf(elf::R_ARM_CALL) => {
+                parsed_ins.args.iter().rposition(|a| matches!(a, args::Argument::BranchDest(_)))
+            }
+            // Data
+            RelocationFlags::Elf(elf::R_ARM_ABS32) => {
+                parsed_ins.args.iter().rposition(|a| matches!(a, args::Argument::UImm(_)))
+            }
+            _ => None,
+        }
+    } else {
+        None
+    }
+}
+
+fn get_pc_relative_load_address(ins: unarm::Ins, address: u32) -> Option<u32> {
+    match ins {
+        unarm::Ins::Arm(ins)
+            if ins.op == arm::Opcode::Ldr
+                && ins.modifier_addr_ldr_str() == arm::AddrLdrStr::Imm
+                && ins.field_rn_deref().reg == args::Register::Pc =>
+        {
+            let offset = ins.field_offset_12().value;
+            Some(address.wrapping_add_signed(offset + 8))
+        }
+        unarm::Ins::Thumb(ins) if ins.op == thumb::Opcode::LdrPc => {
+            let offset = ins.field_rel_immed_8().value;
+            Some((address & !3).wrapping_add_signed(offset + 4))
+        }
+        _ => None,
+    }
 }

objdiff-core/src/arch/mips.rs

@@ -1,31 +1,32 @@
-use std::{borrow::Cow, collections::BTreeMap, sync::Mutex};
-
-use anyhow::{anyhow, bail, Result};
-use object::{
-    elf, Endian, Endianness, File, FileFlags, Object, ObjectSection, ObjectSymbol, Relocation,
-    RelocationFlags, RelocationTarget,
+use alloc::{
+    collections::{BTreeMap, BTreeSet},
+    string::{String, ToString},
+    vec::Vec,
+};
+
+use anyhow::{Result, bail};
+use object::{Endian as _, Object as _, ObjectSection as _, ObjectSymbol as _, elf};
+use rabbitizer::{
+    IsaExtension, IsaVersion, Vram, abi::Abi, operands::ValuedOperand, registers_meta::Register,
 };
-use rabbitizer::{config, Abi, InstrCategory, Instruction, OperandType};
 
 use crate::{
-    arch::{ObjArch, ProcessCodeResult},
-    diff::{DiffObjConfig, MipsAbi, MipsInstrCategory},
-    obj::{ObjIns, ObjInsArg, ObjInsArgValue, ObjReloc, ObjSection},
+    arch::{Arch, RelocationOverride, RelocationOverrideTarget},
+    diff::{DiffObjConfig, MipsAbi, MipsInstrCategory, display::InstructionPart},
+    obj::{
+        InstructionArg, InstructionArgValue, InstructionRef, Relocation, RelocationFlags,
+        ResolvedInstructionRef, ResolvedRelocation, Section, Symbol, SymbolFlag, SymbolFlagSet,
+    },
 };
 
-static RABBITIZER_MUTEX: Mutex<()> = Mutex::new(());
-
-fn configure_rabbitizer(abi: Abi) {
-    unsafe {
-        config::RabbitizerConfig_Cfg.reg_names.fpr_abi_names = abi;
-    }
-}
-
-pub struct ObjArchMips {
-    pub endianness: Endianness,
+#[derive(Debug)]
+pub struct ArchMips {
+    pub endianness: object::Endianness,
     pub abi: Abi,
-    pub instr_category: InstrCategory,
+    pub isa_extension: Option<IsaExtension>,
     pub ri_gp_value: i32,
+    pub paired_relocations: Vec<BTreeMap<u64, i64>>,
+    pub ignored_symbols: BTreeSet<usize>,
 }
 
 const EF_MIPS_ABI: u32 = 0x0000F000;
@@ -36,13 +37,13 @@ const EF_MIPS_MACH_5900: u32 = 0x00920000;
 
 const R_MIPS15_S3: u32 = 119;
 
-impl ObjArchMips {
-    pub fn new(object: &File) -> Result<Self> {
-        let mut abi = Abi::NUMERIC;
-        let mut instr_category = InstrCategory::CPU;
+impl ArchMips {
+    pub fn new(object: &object::File) -> Result<Self> {
+        let mut abi = Abi::O32;
+        let mut isa_extension = None;
         match object.flags() {
-            FileFlags::None => {}
-            FileFlags::Elf { e_flags, .. } => {
+            object::FileFlags::None => {}
+            object::FileFlags::Elf { e_flags, .. } => {
                 abi = match e_flags & EF_MIPS_ABI {
                     elf::EF_MIPS_ABI_O32 | elf::EF_MIPS_ABI_O64 => Abi::O32,
                     elf::EF_MIPS_ABI_EABI32 | elf::EF_MIPS_ABI_EABI64 => Abi::N32,
@@ -50,14 +51,14 @@ impl ObjArchMips {
                         if e_flags & elf::EF_MIPS_ABI2 != 0 {
                             Abi::N32
                         } else {
-                            Abi::NUMERIC
+                            Abi::O32
                         }
                     }
                 };
-                instr_category = match e_flags & EF_MIPS_MACH {
-                    EF_MIPS_MACH_ALLEGREX => InstrCategory::R4000ALLEGREX,
-                    EF_MIPS_MACH_5900 => InstrCategory::R5900,
-                    _ => InstrCategory::CPU,
+                isa_extension = match e_flags & EF_MIPS_MACH {
+                    EF_MIPS_MACH_ALLEGREX => Some(IsaExtension::R4000ALLEGREX),
+                    EF_MIPS_MACH_5900 => Some(IsaExtension::R5900EE),
+                    _ => None,
                 };
             }
             _ => bail!("Unsupported MIPS file flags"),
@@ -65,216 +66,263 @@ impl ObjArchMips {
 
         // Parse the ri_gp_value stored in .reginfo to be able to correctly
         // calculate R_MIPS_GPREL16 relocations later. The value is stored
-        // 0x14 bytes into .reginfo (on 32 bit platforms)
+        // 0x14 bytes into .reginfo (on 32-bit platforms)
+        let endianness = object.endianness();
         let ri_gp_value = object
             .section_by_name(".reginfo")
             .and_then(|section| section.data().ok())
             .and_then(|data| data.get(0x14..0x18))
             .and_then(|s| s.try_into().ok())
-            .map(|bytes| object.endianness().read_i32_bytes(bytes))
+            .map(|bytes| endianness.read_i32_bytes(bytes))
             .unwrap_or(0);
 
-        Ok(Self { endianness: object.endianness(), abi, instr_category, ri_gp_value })
-    }
-}
+        // Parse all relocations to pair R_MIPS_HI16 and R_MIPS_LO16. Since the instructions only
+        // have 16-bit immediate fields, the 32-bit addend is split across the two relocations.
+        // R_MIPS_LO16 relocations without an immediately preceding R_MIPS_HI16 use the last seen
+        // R_MIPS_HI16 addend.
+        // See https://refspecs.linuxfoundation.org/elf/mipsabi.pdf pages 4-17 and 4-18
+        let mut paired_relocations = Vec::with_capacity(object.sections().count() + 1);
+        for obj_section in object.sections() {
+            let data = obj_section.data()?;
+            let mut last_hi = None;
+            let mut last_hi_addend = 0;
+            let mut addends = BTreeMap::new();
+            for (addr, reloc) in obj_section.relocations() {
+                if !reloc.has_implicit_addend() {
+                    continue;
+                }
+                match reloc.flags() {
+                    object::RelocationFlags::Elf { r_type: elf::R_MIPS_HI16 } => {
+                        let code = data[addr as usize..addr as usize + 4].try_into()?;
+                        let addend = ((endianness.read_u32_bytes(code) & 0x0000FFFF) << 16) as i32;
+                        last_hi = Some(addr);
+                        last_hi_addend = addend;
+                    }
+                    object::RelocationFlags::Elf { r_type: elf::R_MIPS_LO16 } => {
+                        let code = data[addr as usize..addr as usize + 4].try_into()?;
+                        let addend = (endianness.read_u32_bytes(code) & 0x0000FFFF) as i16 as i32;
+                        let full_addend = (last_hi_addend + addend) as i64;
+                        if let Some(hi_addr) = last_hi.take() {
+                            addends.insert(hi_addr, full_addend);
+                        }
+                        addends.insert(addr, full_addend);
+                    }
+                    _ => {
+                        last_hi = None;
+                    }
+                }
+            }
+            let section_index = obj_section.index().0;
+            if section_index >= paired_relocations.len() {
+                paired_relocations.resize_with(section_index + 1, BTreeMap::new);
+            }
+            paired_relocations[section_index] = addends;
+        }
 
-impl ObjArch for ObjArchMips {
-    fn process_code(
-        &self,
-        address: u64,
-        code: &[u8],
-        section_index: usize,
-        relocations: &[ObjReloc],
-        line_info: &BTreeMap<u64, u32>,
-        config: &DiffObjConfig,
-    ) -> Result<ProcessCodeResult> {
-        let _guard = RABBITIZER_MUTEX.lock().map_err(|e| anyhow!("Failed to lock mutex: {e}"))?;
-        configure_rabbitizer(match config.mips_abi {
+        let mut ignored_symbols = BTreeSet::new();
+        for obj_symbol in object.symbols() {
+            let Ok(name) = obj_symbol.name() else { continue };
+            if let Some(prefix) = name.strip_suffix(".NON_MATCHING") {
+                ignored_symbols.insert(obj_symbol.index().0);
+                if let Some(target_symbol) = object.symbol_by_name(prefix) {
+                    ignored_symbols.insert(target_symbol.index().0);
+                }
+            }
+        }
+
+        Ok(Self {
+            endianness,
+            abi,
+            isa_extension,
+            ri_gp_value,
+            paired_relocations,
+            ignored_symbols,
+        })
+    }
+
+    fn default_instruction_flags(&self) -> rabbitizer::InstructionFlags {
+        match self.isa_extension {
+            Some(extension) => rabbitizer::InstructionFlags::new_extension(extension),
+            None => rabbitizer::InstructionFlags::new(IsaVersion::MIPS_III),
+        }
+        .with_abi(self.abi)
+    }
+
+    fn instruction_flags(&self, diff_config: &DiffObjConfig) -> rabbitizer::InstructionFlags {
+        let isa_extension = match diff_config.mips_instr_category {
+            MipsInstrCategory::Auto => self.isa_extension,
+            MipsInstrCategory::Cpu => None,
+            MipsInstrCategory::Rsp => Some(IsaExtension::RSP),
+            MipsInstrCategory::R3000gte => Some(IsaExtension::R3000GTE),
+            MipsInstrCategory::R4000allegrex => Some(IsaExtension::R4000ALLEGREX),
+            MipsInstrCategory::R5900 => Some(IsaExtension::R5900EE),
+        };
+        match isa_extension {
+            Some(extension) => rabbitizer::InstructionFlags::new_extension(extension),
+            None => rabbitizer::InstructionFlags::new(IsaVersion::MIPS_III),
+        }
+        .with_abi(match diff_config.mips_abi {
             MipsAbi::Auto => self.abi,
             MipsAbi::O32 => Abi::O32,
             MipsAbi::N32 => Abi::N32,
             MipsAbi::N64 => Abi::N64,
-        });
-        let instr_category = match config.mips_instr_category {
-            MipsInstrCategory::Auto => self.instr_category,
-            MipsInstrCategory::Cpu => InstrCategory::CPU,
-            MipsInstrCategory::Rsp => InstrCategory::RSP,
-            MipsInstrCategory::R3000gte => InstrCategory::R3000GTE,
-            MipsInstrCategory::R4000allegrex => InstrCategory::R4000ALLEGREX,
-            MipsInstrCategory::R5900 => InstrCategory::R5900,
-        };
-
-        let start_address = address;
-        let end_address = address + code.len() as u64;
-        let ins_count = code.len() / 4;
-        let mut ops = Vec::<u16>::with_capacity(ins_count);
-        let mut insts = Vec::<ObjIns>::with_capacity(ins_count);
-        let mut cur_addr = start_address as u32;
-        for chunk in code.chunks_exact(4) {
-            let reloc = relocations.iter().find(|r| (r.address as u32 & !3) == cur_addr);
-            let code = self.endianness.read_u32_bytes(chunk.try_into()?);
-            let instruction = Instruction::new(code, cur_addr, instr_category);
-
-            let formatted = instruction.disassemble(None, 0);
-            let op = instruction.unique_id as u16;
-            ops.push(op);
-
-            let mnemonic = instruction.opcode_name();
-            let is_branch = instruction.is_branch();
-            let branch_offset = instruction.branch_offset();
-            let mut branch_dest = if is_branch {
-                cur_addr.checked_add_signed(branch_offset).map(|a| a as u64)
-            } else {
-                None
-            };
-
-            let operands = instruction.get_operands_slice();
-            let mut args = Vec::with_capacity(operands.len() + 1);
-            for (idx, op) in operands.iter().enumerate() {
-                if idx > 0 {
-                    args.push(ObjInsArg::PlainText(config.separator().into()));
-                }
-
-                match op {
-                    OperandType::cpu_immediate
-                    | OperandType::cpu_label
-                    | OperandType::cpu_branch_target_label => {
-                        if let Some(reloc) = reloc {
-                            // If the relocation target is within the current function, we can
-                            // convert it into a relative branch target. Note that we check
-                            // target_address > start_address instead of >= so that recursive
-                            // tail calls are not considered branch targets.
-                            let target_address =
-                                reloc.target.address.checked_add_signed(reloc.addend);
-                            if reloc.target.orig_section_index == Some(section_index)
-                                && matches!(target_address, Some(addr) if addr > start_address && addr < end_address)
-                            {
-                                let target_address = target_address.unwrap();
-                                args.push(ObjInsArg::BranchDest(target_address));
-                                branch_dest = Some(target_address);
-                            } else {
-                                push_reloc(&mut args, reloc)?;
-                                branch_dest = None;
-                            }
-                        } else if let Some(branch_dest) = branch_dest {
-                            args.push(ObjInsArg::BranchDest(branch_dest));
-                        } else {
-                            args.push(ObjInsArg::Arg(ObjInsArgValue::Opaque(
-                                op.disassemble(&instruction, None).into(),
-                            )));
-                        }
-                    }
-                    OperandType::cpu_immediate_base => {
-                        if let Some(reloc) = reloc {
-                            push_reloc(&mut args, reloc)?;
-                        } else {
-                            args.push(ObjInsArg::Arg(ObjInsArgValue::Opaque(
-                                OperandType::cpu_immediate.disassemble(&instruction, None).into(),
-                            )));
-                        }
-                        args.push(ObjInsArg::PlainText("(".into()));
-                        args.push(ObjInsArg::Arg(ObjInsArgValue::Opaque(
-                            OperandType::cpu_rs.disassemble(&instruction, None).into(),
-                        )));
-                        args.push(ObjInsArg::PlainText(")".into()));
-                    }
-                    // OperandType::r5900_immediate15 => match reloc {
-                    //     Some(reloc)
-                    //         if reloc.flags == RelocationFlags::Elf { r_type: R_MIPS15_S3 } =>
-                    //     {
-                    //         push_reloc(&mut args, reloc)?;
-                    //     }
-                    //     _ => {
-                    //         args.push(ObjInsArg::Arg(ObjInsArgValue::Opaque(
-                    //             op.disassemble(&instruction, None).into(),
-                    //         )));
-                    //     }
-                    // },
-                    _ => {
-                        args.push(ObjInsArg::Arg(ObjInsArgValue::Opaque(
-                            op.disassemble(&instruction, None).into(),
-                        )));
-                    }
-                }
-            }
-            let line = line_info.range(..=cur_addr as u64).last().map(|(_, &b)| b);
-            insts.push(ObjIns {
-                address: cur_addr as u64,
-                size: 4,
-                op,
-                mnemonic: Cow::Borrowed(mnemonic),
-                args,
-                reloc: reloc.cloned(),
-                branch_dest,
-                line,
-                formatted,
-                orig: None,
-            });
-            cur_addr += 4;
-        }
-        Ok(ProcessCodeResult { ops, insts })
-    }
-
-    fn implcit_addend(
-        &self,
-        file: &File<'_>,
-        section: &ObjSection,
-        address: u64,
-        reloc: &Relocation,
-    ) -> Result<i64> {
-        let data = section.data[address as usize..address as usize + 4].try_into()?;
-        let addend = self.endianness.read_u32_bytes(data);
-        Ok(match reloc.flags() {
-            RelocationFlags::Elf { r_type: elf::R_MIPS_32 } => addend as i64,
-            RelocationFlags::Elf { r_type: elf::R_MIPS_26 } => ((addend & 0x03FFFFFF) << 2) as i64,
-            RelocationFlags::Elf { r_type: elf::R_MIPS_HI16 } => {
-                ((addend & 0x0000FFFF) << 16) as i32 as i64
-            }
-            RelocationFlags::Elf {
-                r_type: elf::R_MIPS_LO16 | elf::R_MIPS_GOT16 | elf::R_MIPS_CALL16,
-            } => (addend & 0x0000FFFF) as i16 as i64,
-            RelocationFlags::Elf { r_type: elf::R_MIPS_GPREL16 | elf::R_MIPS_LITERAL } => {
-                let RelocationTarget::Symbol(idx) = reloc.target() else {
-                    bail!("Unsupported R_MIPS_GPREL16 relocation against a non-symbol");
-                };
-                let sym = file.symbol_by_index(idx)?;
-
-                // if the symbol we are relocating against is in a local section we need to add
-                // the ri_gp_value from .reginfo to the addend.
-                if sym.section().index().is_some() {
-                    ((addend & 0x0000FFFF) as i16 as i64) + self.ri_gp_value as i64
-                } else {
-                    (addend & 0x0000FFFF) as i16 as i64
-                }
-            }
-            RelocationFlags::Elf { r_type: elf::R_MIPS_PC16 } => 0, // PC-relative relocation
-            RelocationFlags::Elf { r_type: R_MIPS15_S3 } => ((addend & 0x001FFFC0) >> 3) as i64,
-            flags => bail!("Unsupported MIPS implicit relocation {flags:?}"),
         })
     }
 
-    fn display_reloc(&self, flags: RelocationFlags) -> Cow<'static, str> {
-        match flags {
-            RelocationFlags::Elf { r_type } => match r_type {
-                elf::R_MIPS_32 => Cow::Borrowed("R_MIPS_32"),
-                elf::R_MIPS_26 => Cow::Borrowed("R_MIPS_26"),
-                elf::R_MIPS_HI16 => Cow::Borrowed("R_MIPS_HI16"),
-                elf::R_MIPS_LO16 => Cow::Borrowed("R_MIPS_LO16"),
-                elf::R_MIPS_GPREL16 => Cow::Borrowed("R_MIPS_GPREL16"),
-                elf::R_MIPS_LITERAL => Cow::Borrowed("R_MIPS_LITERAL"),
-                elf::R_MIPS_GOT16 => Cow::Borrowed("R_MIPS_GOT16"),
-                elf::R_MIPS_PC16 => Cow::Borrowed("R_MIPS_PC16"),
-                elf::R_MIPS_CALL16 => Cow::Borrowed("R_MIPS_CALL16"),
-                R_MIPS15_S3 => Cow::Borrowed("R_MIPS15_S3"),
-                _ => Cow::Owned(format!("<{flags:?}>")),
-            },
-            _ => Cow::Owned(format!("<{flags:?}>")),
+    fn instruction_display_flags(
+        &self,
+        diff_config: &DiffObjConfig,
+    ) -> rabbitizer::InstructionDisplayFlags {
+        rabbitizer::InstructionDisplayFlags::default()
+            .with_unknown_instr_comment(false)
+            .with_use_dollar(diff_config.mips_register_prefix)
+    }
+
+    fn parse_ins_ref(
+        &self,
+        ins_ref: InstructionRef,
+        code: &[u8],
+        diff_config: &DiffObjConfig,
+    ) -> Result<rabbitizer::Instruction> {
+        Ok(rabbitizer::Instruction::new(
+            self.endianness.read_u32_bytes(code.try_into()?),
+            Vram::new(ins_ref.address as u32),
+            self.instruction_flags(diff_config),
+        ))
+    }
+}
+
+impl Arch for ArchMips {
+    fn scan_instructions_internal(
+        &self,
+        address: u64,
+        code: &[u8],
+        _section_index: usize,
+        _relocations: &[Relocation],
+        diff_config: &DiffObjConfig,
+    ) -> Result<Vec<InstructionRef>> {
+        let instruction_flags = self.instruction_flags(diff_config);
+        let mut ops = Vec::<InstructionRef>::with_capacity(code.len() / 4);
+        let mut cur_addr = address as u32;
+        for chunk in code.chunks_exact(4) {
+            let code = self.endianness.read_u32_bytes(chunk.try_into()?);
+            let instruction =
+                rabbitizer::Instruction::new(code, Vram::new(cur_addr), instruction_flags);
+            let opcode = instruction.opcode() as u16;
+            let branch_dest = instruction.get_branch_vram_generic().map(|v| v.inner() as u64);
+            ops.push(InstructionRef { address: cur_addr as u64, size: 4, opcode, branch_dest });
+            cur_addr += 4;
+        }
+        Ok(ops)
+    }
+
+    fn display_instruction(
+        &self,
+        resolved: ResolvedInstructionRef,
+        diff_config: &DiffObjConfig,
+        cb: &mut dyn FnMut(InstructionPart) -> Result<()>,
+    ) -> Result<()> {
+        let instruction = self.parse_ins_ref(resolved.ins_ref, resolved.code, diff_config)?;
+        let display_flags = self.instruction_display_flags(diff_config);
+        let opcode = instruction.opcode();
+        cb(InstructionPart::opcode(opcode.name(), opcode as u16))?;
+        push_args(&instruction, resolved.relocation, &display_flags, cb)?;
+        Ok(())
+    }
+
+    fn relocation_override(
+        &self,
+        file: &object::File<'_>,
+        section: &object::Section,
+        address: u64,
+        relocation: &object::Relocation,
+    ) -> Result<Option<RelocationOverride>> {
+        match relocation.flags() {
+            // Handle ELF implicit relocations
+            object::RelocationFlags::Elf { r_type } => {
+                if relocation.has_implicit_addend() {
+                    // Check for paired R_MIPS_HI16 and R_MIPS_LO16 relocations.
+                    if let elf::R_MIPS_HI16 | elf::R_MIPS_LO16 = r_type
+                        && let Some(addend) = self
+                            .paired_relocations
+                            .get(section.index().0)
+                            .and_then(|m| m.get(&address).copied())
+                    {
+                        return Ok(Some(RelocationOverride {
+                            target: RelocationOverrideTarget::Keep,
+                            addend,
+                        }));
+                    }
+
+                    let data = section.data()?;
+                    let code = self
+                        .endianness
+                        .read_u32_bytes(data[address as usize..address as usize + 4].try_into()?);
+                    let addend = match r_type {
+                        elf::R_MIPS_32 => code as i64,
+                        elf::R_MIPS_26 => ((code & 0x03FFFFFF) << 2) as i64,
+                        elf::R_MIPS_HI16 => ((code & 0x0000FFFF) << 16) as i32 as i64,
+                        elf::R_MIPS_LO16 | elf::R_MIPS_GOT16 | elf::R_MIPS_CALL16 => {
+                            (code & 0x0000FFFF) as i16 as i64
+                        }
+                        elf::R_MIPS_GPREL16 | elf::R_MIPS_LITERAL => {
+                            let object::RelocationTarget::Symbol(idx) = relocation.target() else {
+                                bail!("Unsupported R_MIPS_GPREL16 relocation against a non-symbol");
+                            };
+                            let sym = file.symbol_by_index(idx)?;
+
+                            // if the symbol we are relocating against is in a local section we need to add
+                            // the ri_gp_value from .reginfo to the addend.
+                            if sym.section().index().is_some() {
+                                ((code & 0x0000FFFF) as i16 as i64) + self.ri_gp_value as i64
+                            } else {
+                                (code & 0x0000FFFF) as i16 as i64
+                            }
+                        }
+                        elf::R_MIPS_PC16 => 0, // PC-relative relocation
+                        R_MIPS15_S3 => ((code & 0x001FFFC0) >> 3) as i64,
+                        flags => bail!("Unsupported MIPS implicit relocation {flags:?}"),
+                    };
+                    Ok(Some(RelocationOverride { target: RelocationOverrideTarget::Keep, addend }))
+                } else {
+                    Ok(None)
+                }
+            }
+            _ => Ok(None),
         }
     }
 
-    fn get_reloc_byte_size(&self, flags: RelocationFlags) -> usize {
+    fn demangle(&self, name: &str) -> Option<String> {
+        cpp_demangle::Symbol::new(name)
+            .ok()
+            .and_then(|s| s.demangle(&cpp_demangle::DemangleOptions::default()).ok())
+            .or_else(|| cwdemangle::demangle(name, &cwdemangle::DemangleOptions::default()))
+    }
+
+    fn reloc_name(&self, flags: RelocationFlags) -> Option<&'static str> {
         match flags {
-            RelocationFlags::Elf { r_type } => match r_type {
+            RelocationFlags::Elf(r_type) => match r_type {
+                elf::R_MIPS_NONE => Some("R_MIPS_NONE"),
+                elf::R_MIPS_16 => Some("R_MIPS_16"),
+                elf::R_MIPS_32 => Some("R_MIPS_32"),
+                elf::R_MIPS_26 => Some("R_MIPS_26"),
+                elf::R_MIPS_HI16 => Some("R_MIPS_HI16"),
+                elf::R_MIPS_LO16 => Some("R_MIPS_LO16"),
+                elf::R_MIPS_GPREL16 => Some("R_MIPS_GPREL16"),
+                elf::R_MIPS_LITERAL => Some("R_MIPS_LITERAL"),
+                elf::R_MIPS_GOT16 => Some("R_MIPS_GOT16"),
+                elf::R_MIPS_PC16 => Some("R_MIPS_PC16"),
+                elf::R_MIPS_CALL16 => Some("R_MIPS_CALL16"),
+                R_MIPS15_S3 => Some("R_MIPS15_S3"),
+                _ => None,
+            },
+            _ => None,
+        }
+    }
+
+    fn data_reloc_size(&self, flags: RelocationFlags) -> usize {
+        match flags {
+            RelocationFlags::Elf(r_type) => match r_type {
                 elf::R_MIPS_16 => 2,
                 elf::R_MIPS_32 => 4,
                 _ => 1,
@@ -282,42 +330,160 @@ impl ObjArch for ObjArchMips {
             _ => 1,
         }
     }
+
+    fn extra_symbol_flags(&self, symbol: &object::Symbol) -> SymbolFlagSet {
+        let mut flags = SymbolFlagSet::default();
+        if self.ignored_symbols.contains(&symbol.index().0) {
+            flags |= SymbolFlag::Ignored;
+        }
+        flags
+    }
+
+    fn infer_function_size(
+        &self,
+        symbol: &Symbol,
+        section: &Section,
+        next_address: u64,
+    ) -> Result<u64> {
+        // Trim any trailing 4-byte zeroes from the end (nops)
+        let mut new_address = next_address;
+        while new_address >= symbol.address + 4
+            && let Some(data) = section.data_range(new_address - 4, 4)
+            && data == [0u8; 4]
+        {
+            new_address -= 4;
+        }
+        // Check if the last instruction has a delay slot, if so, include the delay slot nop
+        if new_address + 4 <= next_address
+            && new_address >= symbol.address + 4
+            && let Some(data) = section.data_range(new_address - 4, 4)
+            && let instruction = rabbitizer::Instruction::new(
+                self.endianness.read_u32_bytes(data.try_into().unwrap()),
+                Vram::new((new_address - 4) as u32),
+                self.default_instruction_flags(),
+            )
+            && instruction.opcode().has_delay_slot()
+        {
+            new_address += 4;
+        }
+        Ok(new_address.saturating_sub(symbol.address))
+    }
 }
 
-fn push_reloc(args: &mut Vec<ObjInsArg>, reloc: &ObjReloc) -> Result<()> {
+fn push_args(
+    instruction: &rabbitizer::Instruction,
+    relocation: Option<ResolvedRelocation>,
+    display_flags: &rabbitizer::InstructionDisplayFlags,
+    mut arg_cb: impl FnMut(InstructionPart) -> Result<()>,
+) -> Result<()> {
+    let operands = instruction.valued_operands_iter();
+    for (idx, op) in operands.enumerate() {
+        if idx > 0 {
+            arg_cb(InstructionPart::separator())?;
+        }
+
+        match op {
+            ValuedOperand::core_imm_i16(imm) => {
+                if let Some(resolved) = relocation {
+                    push_reloc(resolved.relocation, &mut arg_cb)?;
+                } else {
+                    arg_cb(InstructionPart::signed(imm))?;
+                }
+            }
+            ValuedOperand::core_imm_u16(imm) => {
+                if let Some(resolved) = relocation {
+                    push_reloc(resolved.relocation, &mut arg_cb)?;
+                } else {
+                    arg_cb(InstructionPart::unsigned(imm))?;
+                }
+            }
+            ValuedOperand::core_label(..) | ValuedOperand::core_branch_target_label(..) => {
+                if let Some(resolved) = relocation {
+                    push_reloc(resolved.relocation, &mut arg_cb)?;
+                } else if let Some(branch_dest) = instruction
+                    .get_branch_offset_generic()
+                    .map(|o| (instruction.vram() + o).inner() as u64)
+                {
+                    arg_cb(InstructionPart::branch_dest(branch_dest))?;
+                } else {
+                    arg_cb(InstructionPart::opaque(
+                        op.display(instruction, display_flags, None::<&str>).to_string(),
+                    ))?;
+                }
+            }
+            ValuedOperand::core_imm_rs(imm, base) => {
+                if let Some(resolved) = relocation {
+                    push_reloc(resolved.relocation, &mut arg_cb)?;
+                } else {
+                    arg_cb(InstructionPart::Arg(InstructionArg::Value(
+                        InstructionArgValue::Signed(imm as i64),
+                    )))?;
+                }
+                arg_cb(InstructionPart::basic("("))?;
+                arg_cb(InstructionPart::opaque(base.either_name(
+                    instruction.flags().abi(),
+                    display_flags.named_gpr(),
+                    !display_flags.use_dollar(),
+                )))?;
+                arg_cb(InstructionPart::basic(")"))?;
+            }
+            // ValuedOperand::r5900_immediate15(..) => match relocation {
+            //     Some(resolved)
+            //         if resolved.relocation.flags == RelocationFlags::Elf(R_MIPS15_S3) =>
+            //     {
+            //         push_reloc(&resolved.relocation, &mut arg_cb)?;
+            //     }
+            //     _ => {
+            //         arg_cb(InstructionPart::opaque(op.disassemble(&instruction, None)))?;
+            //     }
+            // },
+            _ => {
+                arg_cb(InstructionPart::opaque(
+                    op.display(instruction, display_flags, None::<&str>).to_string(),
+                ))?;
+            }
+        }
+    }
+    Ok(())
+}
+
+fn push_reloc(
+    reloc: &Relocation,
+    mut arg_cb: impl FnMut(InstructionPart) -> Result<()>,
+) -> Result<()> {
     match reloc.flags {
-        RelocationFlags::Elf { r_type } => match r_type {
+        RelocationFlags::Elf(r_type) => match r_type {
             elf::R_MIPS_HI16 => {
-                args.push(ObjInsArg::PlainText("%hi(".into()));
-                args.push(ObjInsArg::Reloc);
-                args.push(ObjInsArg::PlainText(")".into()));
+                arg_cb(InstructionPart::basic("%hi("))?;
+                arg_cb(InstructionPart::reloc())?;
+                arg_cb(InstructionPart::basic(")"))?;
             }
             elf::R_MIPS_LO16 => {
-                args.push(ObjInsArg::PlainText("%lo(".into()));
-                args.push(ObjInsArg::Reloc);
-                args.push(ObjInsArg::PlainText(")".into()));
+                arg_cb(InstructionPart::basic("%lo("))?;
+                arg_cb(InstructionPart::reloc())?;
+                arg_cb(InstructionPart::basic(")"))?;
             }
             elf::R_MIPS_GOT16 => {
-                args.push(ObjInsArg::PlainText("%got(".into()));
-                args.push(ObjInsArg::Reloc);
-                args.push(ObjInsArg::PlainText(")".into()));
+                arg_cb(InstructionPart::basic("%got("))?;
+                arg_cb(InstructionPart::reloc())?;
+                arg_cb(InstructionPart::basic(")"))?;
             }
             elf::R_MIPS_CALL16 => {
-                args.push(ObjInsArg::PlainText("%call16(".into()));
-                args.push(ObjInsArg::Reloc);
-                args.push(ObjInsArg::PlainText(")".into()));
+                arg_cb(InstructionPart::basic("%call16("))?;
+                arg_cb(InstructionPart::reloc())?;
+                arg_cb(InstructionPart::basic(")"))?;
             }
             elf::R_MIPS_GPREL16 => {
-                args.push(ObjInsArg::PlainText("%gp_rel(".into()));
-                args.push(ObjInsArg::Reloc);
-                args.push(ObjInsArg::PlainText(")".into()));
+                arg_cb(InstructionPart::basic("%gp_rel("))?;
+                arg_cb(InstructionPart::reloc())?;
+                arg_cb(InstructionPart::basic(")"))?;
             }
             elf::R_MIPS_32
             | elf::R_MIPS_26
             | elf::R_MIPS_LITERAL
             | elf::R_MIPS_PC16
             | R_MIPS15_S3 => {
-                args.push(ObjInsArg::Reloc);
+                arg_cb(InstructionPart::reloc())?;
             }
             _ => bail!("Unsupported ELF MIPS relocation type {r_type}"),
         },

objdiff-core/src/arch/mod.rs

@@ -1,44 +1,95 @@
-use std::{borrow::Cow, collections::BTreeMap, ffi::CStr};
+use alloc::{
+    borrow::Cow,
+    boxed::Box,
+    format,
+    string::{String, ToString},
+    vec::Vec,
+};
+use core::{
+    any::Any,
+    ffi::CStr,
+    fmt::{self, Debug},
+};
 
-use anyhow::{bail, Result};
-use byteorder::ByteOrder;
-use object::{Architecture, File, Object, ObjectSymbol, Relocation, RelocationFlags, Symbol};
+use anyhow::{Result, bail};
+use encoding_rs::SHIFT_JIS;
+use object::Endian as _;
 
 use crate::{
-    diff::DiffObjConfig,
-    obj::{ObjIns, ObjReloc, ObjSection},
+    diff::{
+        DiffObjConfig,
+        display::{ContextItem, HoverItem, InstructionPart},
+    },
+    obj::{
+        FlowAnalysisResult, InstructionArg, InstructionRef, Object, ParsedInstruction, Relocation,
+        RelocationFlags, ResolvedInstructionRef, ResolvedSymbol, Section, Symbol, SymbolFlagSet,
+        SymbolKind,
+    },
     util::ReallySigned,
 };
 
 #[cfg(feature = "arm")]
-mod arm;
+pub mod arm;
 #[cfg(feature = "arm64")]
-mod arm64;
+pub mod arm64;
 #[cfg(feature = "mips")]
 pub mod mips;
 #[cfg(feature = "ppc")]
 pub mod ppc;
+#[cfg(feature = "superh")]
+pub mod superh;
 #[cfg(feature = "x86")]
 pub mod x86;
 
 /// Represents the type of data associated with an instruction
+#[derive(PartialEq)]
 pub enum DataType {
     Int8,
     Int16,
     Int32,
     Int64,
-    Int128,
     Float,
     Double,
     Bytes,
     String,
 }
 
+impl fmt::Display for DataType {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        f.write_str(match self {
+            DataType::Int8 => "Int8",
+            DataType::Int16 => "Int16",
+            DataType::Int32 => "Int32",
+            DataType::Int64 => "Int64",
+            DataType::Float => "Float",
+            DataType::Double => "Double",
+            DataType::Bytes => "Bytes",
+            DataType::String => "String",
+        })
+    }
+}
+
 impl DataType {
-    pub fn display_bytes<Endian: ByteOrder>(&self, bytes: &[u8]) -> Option<String> {
+    pub fn display_labels(&self, endian: object::Endianness, bytes: &[u8]) -> Vec<String> {
+        let mut strs = Vec::new();
+        for (literal, label_override) in self.display_literals(endian, bytes) {
+            let label = label_override.unwrap_or_else(|| self.to_string());
+            strs.push(format!("{label}: {literal}"))
+        }
+        strs
+    }
+
+    pub fn display_literals(
+        &self,
+        endian: object::Endianness,
+        bytes: &[u8],
+    ) -> Vec<(String, Option<String>)> {
+        let mut strs = Vec::new();
         if self.required_len().is_some_and(|l| bytes.len() < l) {
-            log::warn!("Failed to display a symbol value for a symbol whose size is too small for instruction referencing it.");
-            return None;
+            log::warn!(
+                "Failed to display a symbol value for a symbol whose size is too small for instruction referencing it."
+            );
+            return strs;
         }
         let mut bytes = bytes;
         if self.required_len().is_some_and(|l| bytes.len() > l) {
@@ -56,58 +107,77 @@ impl DataType {
         match self {
             DataType::Int8 => {
                 let i = i8::from_ne_bytes(bytes.try_into().unwrap());
+                strs.push((format!("{i:#x}"), None));
+
                 if i < 0 {
-                    format!("Int8: {:#x} ({:#x})", i, ReallySigned(i))
-                } else {
-                    format!("Int8: {:#x}", i)
+                    strs.push((format!("{:#x}", ReallySigned(i)), None));
                 }
             }
             DataType::Int16 => {
-                let i = Endian::read_i16(bytes);
+                let i = endian.read_i16_bytes(bytes.try_into().unwrap());
+                strs.push((format!("{i:#x}"), None));
+
                 if i < 0 {
-                    format!("Int16: {:#x} ({:#x})", i, ReallySigned(i))
-                } else {
-                    format!("Int16: {:#x}", i)
+                    strs.push((format!("{:#x}", ReallySigned(i)), None));
                 }
             }
             DataType::Int32 => {
-                let i = Endian::read_i32(bytes);
+                let i = endian.read_i32_bytes(bytes.try_into().unwrap());
+                strs.push((format!("{i:#x}"), None));
+
                 if i < 0 {
-                    format!("Int32: {:#x} ({:#x})", i, ReallySigned(i))
-                } else {
-                    format!("Int32: {:#x}", i)
+                    strs.push((format!("{:#x}", ReallySigned(i)), None));
                 }
             }
             DataType::Int64 => {
-                let i = Endian::read_i64(bytes);
+                let i = endian.read_i64_bytes(bytes.try_into().unwrap());
+                strs.push((format!("{i:#x}"), None));
+
                 if i < 0 {
-                    format!("Int64: {:#x} ({:#x})", i, ReallySigned(i))
-                } else {
-                    format!("Int64: {:#x}", i)
-                }
-            }
-            DataType::Int128 => {
-                let i = Endian::read_i128(bytes);
-                if i < 0 {
-                    format!("Int128: {:#x} ({:#x})", i, ReallySigned(i))
-                } else {
-                    format!("Int128: {:#x}", i)
+                    strs.push((format!("{:#x}", ReallySigned(i)), None));
                 }
             }
             DataType::Float => {
-                format!("Float: {:?}f", Endian::read_f32(bytes))
+                let bytes: [u8; 4] = bytes.try_into().unwrap();
+                strs.push((
+                    format!("{:?}f", match endian {
+                        object::Endianness::Little => f32::from_le_bytes(bytes),
+                        object::Endianness::Big => f32::from_be_bytes(bytes),
+                    }),
+                    None,
+                ));
             }
             DataType::Double => {
-                format!("Double: {:?}", Endian::read_f64(bytes))
+                let bytes: [u8; 8] = bytes.try_into().unwrap();
+                strs.push((
+                    format!("{:?}", match endian {
+                        object::Endianness::Little => f64::from_le_bytes(bytes),
+                        object::Endianness::Big => f64::from_be_bytes(bytes),
+                    }),
+                    None,
+                ));
             }
             DataType::Bytes => {
-                format!("Bytes: {:#?}", bytes)
+                strs.push((format!("{bytes:#?}"), None));
             }
             DataType::String => {
-                format!("String: {:?}", CStr::from_bytes_until_nul(bytes).ok()?)
+                if let Ok(cstr) = CStr::from_bytes_until_nul(bytes) {
+                    strs.push((format!("{cstr:?}"), None));
+                }
+                if let Some(nul_idx) = bytes.iter().position(|&c| c == b'\0') {
+                    let (cow, _, had_errors) = SHIFT_JIS.decode(&bytes[..nul_idx]);
+                    if !had_errors {
+                        let str = format!("{cow:?}");
+                        // Only add the Shift JIS string if it's different from the ASCII string.
+                        if !strs.iter().any(|x| x.0 == str) {
+                            strs.push((str, Some("Shift JIS".into())));
+                        }
+                    }
+                }
             }
         }
-        .into()
+
+        strs
     }
 
     fn required_len(&self) -> Option<usize> {
@@ -116,7 +186,6 @@ impl DataType {
             DataType::Int16 => Some(2),
             DataType::Int32 => Some(4),
             DataType::Int64 => Some(8),
-            DataType::Int128 => Some(16),
             DataType::Float => Some(4),
             DataType::Double => Some(8),
             DataType::Bytes => None,
@@ -125,72 +194,294 @@ impl DataType {
     }
 }
 
-pub trait ObjArch: Send + Sync {
-    fn process_code(
+impl dyn Arch {
+    /// Generate a list of instructions references (offset, size, opcode) from the given code.
+    ///
+    /// See [`scan_instructions_internal`] for more details.
+    pub fn scan_instructions(
+        &self,
+        resolved: ResolvedSymbol,
+        diff_config: &DiffObjConfig,
+    ) -> Result<Vec<InstructionRef>> {
+        let mut result = self.scan_instructions_internal(
+            resolved.symbol.address,
+            resolved.data,
+            resolved.section_index,
+            &resolved.section.relocations,
+            diff_config,
+        )?;
+
+        let function_start = resolved.symbol.address;
+        let function_end = function_start + resolved.symbol.size;
+
+        // Remove any branch destinations that are outside the function range
+        for ins in result.iter_mut() {
+            if let Some(branch_dest) = ins.branch_dest
+                && (branch_dest < function_start || branch_dest >= function_end)
+            {
+                ins.branch_dest = None;
+            }
+        }
+
+        // Resolve relocation targets within the same function to branch destinations
+        let mut ins_iter = result.iter_mut().peekable();
+        'outer: for reloc in resolved
+            .section
+            .relocations
+            .iter()
+            .skip_while(|r| r.address < function_start)
+            .take_while(|r| r.address < function_end)
+        {
+            let ins = loop {
+                let Some(ins) = ins_iter.peek_mut() else {
+                    break 'outer;
+                };
+                if reloc.address < ins.address {
+                    continue 'outer;
+                }
+                let ins = ins_iter.next().unwrap();
+                if reloc.address >= ins.address && reloc.address < ins.address + ins.size as u64 {
+                    break ins;
+                }
+            };
+            // Clear existing branch destination for instructions with relocations
+            ins.branch_dest = None;
+            let Some(target) = resolved.obj.symbols.get(reloc.target_symbol) else {
+                continue;
+            };
+            if target.section != Some(resolved.section_index) {
+                continue;
+            }
+            let Some(target_address) = target.address.checked_add_signed(reloc.addend) else {
+                continue;
+            };
+            // If the target address is within the function range, set it as a branch destination
+            if target_address >= function_start && target_address < function_end {
+                ins.branch_dest = Some(target_address);
+            }
+        }
+
+        Ok(result)
+    }
+
+    /// Parse an instruction to gather its mnemonic and arguments for more detailed comparison.
+    ///
+    /// This is called only when we need to compare the arguments of an instruction.
+    pub fn process_instruction(
+        &self,
+        resolved: ResolvedInstructionRef,
+        diff_config: &DiffObjConfig,
+    ) -> Result<ParsedInstruction> {
+        let mut mnemonic = None;
+        let mut args = Vec::with_capacity(8);
+        let mut relocation_emitted = false;
+        self.display_instruction(resolved, diff_config, &mut |part| {
+            match part {
+                InstructionPart::Opcode(m, _) => mnemonic = Some(Cow::Owned(m.into_owned())),
+                InstructionPart::Arg(arg) => {
+                    if arg == InstructionArg::Reloc {
+                        relocation_emitted = true;
+                        // If the relocation was resolved to a branch destination, emit that instead.
+                        if let Some(dest) = resolved.ins_ref.branch_dest {
+                            args.push(InstructionArg::BranchDest(dest));
+                            return Ok(());
+                        }
+                    }
+                    args.push(arg.into_static());
+                }
+                _ => {}
+            }
+            Ok(())
+        })?;
+        // If the instruction has a relocation, but we didn't format it in the display, add it to
+        // the end of the arguments list.
+        if resolved.relocation.is_some() && !relocation_emitted {
+            args.push(InstructionArg::Reloc);
+        }
+        Ok(ParsedInstruction {
+            ins_ref: resolved.ins_ref,
+            mnemonic: mnemonic.unwrap_or_default(),
+            args,
+        })
+    }
+}
+
+pub trait Arch: Any + Debug + Send + Sync {
+    /// Finishes arch-specific initialization that must be done after sections have been combined.
+    fn post_init(&mut self, _sections: &[Section], _symbols: &[Symbol]) {}
+
+    /// Generate a list of instructions references (offset, size, opcode) from the given code.
+    ///
+    /// The opcode IDs are used to generate the initial diff. Implementations should do as little
+    /// parsing as possible here: just enough to identify the base instruction opcode, size, and
+    /// possible branch destination (for visual representation). As needed, instructions are parsed
+    /// via `process_instruction` to compare their arguments.
+    fn scan_instructions_internal(
         &self,
         address: u64,
         code: &[u8],
         section_index: usize,
-        relocations: &[ObjReloc],
-        line_info: &BTreeMap<u64, u32>,
-        config: &DiffObjConfig,
-    ) -> Result<ProcessCodeResult>;
+        relocations: &[Relocation],
+        diff_config: &DiffObjConfig,
+    ) -> Result<Vec<InstructionRef>>;
 
-    fn implcit_addend(
+    /// Format an instruction for display.
+    ///
+    /// Implementations should call the callback for each part of the instruction: usually the
+    /// mnemonic and arguments, plus any separators and visual formatting.
+    fn display_instruction(
         &self,
-        file: &File<'_>,
-        section: &ObjSection,
-        address: u64,
-        reloc: &Relocation,
-    ) -> Result<i64>;
+        resolved: ResolvedInstructionRef,
+        diff_config: &DiffObjConfig,
+        cb: &mut dyn FnMut(InstructionPart) -> Result<()>,
+    ) -> Result<()>;
+
+    /// Generate a list of fake relocations from the given code that represent pooled data accesses.
+    fn generate_pooled_relocations(
+        &self,
+        _address: u64,
+        _code: &[u8],
+        _relocations: &[Relocation],
+        _symbols: &[Symbol],
+    ) -> Vec<Relocation> {
+        Vec::new()
+    }
+
+    // Perform detailed data flow analysis
+    fn data_flow_analysis(
+        &self,
+        _obj: &Object,
+        _symbol: &Symbol,
+        _code: &[u8],
+        _relocations: &[Relocation],
+    ) -> Option<Box<dyn FlowAnalysisResult>> {
+        None
+    }
+
+    fn relocation_override(
+        &self,
+        _file: &object::File<'_>,
+        _section: &object::Section,
+        _address: u64,
+        _relocation: &object::Relocation,
+    ) -> Result<Option<RelocationOverride>> {
+        Ok(None)
+    }
 
     fn demangle(&self, _name: &str) -> Option<String> { None }
 
-    fn display_reloc(&self, flags: RelocationFlags) -> Cow<'static, str>;
+    fn reloc_name(&self, _flags: RelocationFlags) -> Option<&'static str> { None }
 
-    fn get_reloc_byte_size(&self, flags: RelocationFlags) -> usize;
+    fn data_reloc_size(&self, flags: RelocationFlags) -> usize;
 
-    fn symbol_address(&self, symbol: &Symbol) -> u64 { symbol.address() }
+    fn symbol_address(&self, address: u64, _kind: SymbolKind) -> u64 { address }
 
-    fn guess_data_type(&self, _instruction: &ObjIns) -> Option<DataType> { None }
-
-    fn display_data_type(&self, _ty: DataType, bytes: &[u8]) -> Option<String> {
-        Some(format!("Bytes: {:#x?}", bytes))
+    fn extra_symbol_flags(&self, _symbol: &object::Symbol) -> SymbolFlagSet {
+        SymbolFlagSet::default()
     }
 
-    fn display_ins_data(&self, ins: &ObjIns) -> Option<String> {
-        let reloc = ins.reloc.as_ref()?;
-        if reloc.addend >= 0 && reloc.target.bytes.len() > reloc.addend as usize {
-            self.guess_data_type(ins).and_then(|ty| {
-                self.display_data_type(ty, &reloc.target.bytes[reloc.addend as usize..])
-            })
-        } else {
-            None
-        }
+    fn guess_data_type(
+        &self,
+        _resolved: ResolvedInstructionRef,
+        _bytes: &[u8],
+    ) -> Option<DataType> {
+        None
     }
 
-    // Downcast methods
-    #[cfg(feature = "ppc")]
-    fn ppc(&self) -> Option<&ppc::ObjArchPpc> { None }
+    fn symbol_hover(&self, _obj: &Object, _symbol_index: usize) -> Vec<HoverItem> { Vec::new() }
+
+    fn symbol_context(&self, _obj: &Object, _symbol_index: usize) -> Vec<ContextItem> { Vec::new() }
+
+    fn instruction_hover(
+        &self,
+        _obj: &Object,
+        _resolved: ResolvedInstructionRef,
+    ) -> Vec<HoverItem> {
+        Vec::new()
+    }
+
+    fn instruction_context(
+        &self,
+        _obj: &Object,
+        _resolved: ResolvedInstructionRef,
+    ) -> Vec<ContextItem> {
+        Vec::new()
+    }
+
+    fn infer_function_size(
+        &self,
+        symbol: &Symbol,
+        _section: &Section,
+        next_address: u64,
+    ) -> Result<u64> {
+        Ok(next_address.saturating_sub(symbol.address))
+    }
 }
 
-pub struct ProcessCodeResult {
-    pub ops: Vec<u16>,
-    pub insts: Vec<ObjIns>,
-}
-
-pub fn new_arch(object: &File) -> Result<Box<dyn ObjArch>> {
+pub fn new_arch(object: &object::File) -> Result<Box<dyn Arch>> {
+    use object::Object as _;
     Ok(match object.architecture() {
         #[cfg(feature = "ppc")]
-        Architecture::PowerPc => Box::new(ppc::ObjArchPpc::new(object)?),
+        object::Architecture::PowerPc | object::Architecture::PowerPc64 => {
+            Box::new(ppc::ArchPpc::new(object)?)
+        }
         #[cfg(feature = "mips")]
-        Architecture::Mips => Box::new(mips::ObjArchMips::new(object)?),
+        object::Architecture::Mips => Box::new(mips::ArchMips::new(object)?),
         #[cfg(feature = "x86")]
-        Architecture::I386 | Architecture::X86_64 => Box::new(x86::ObjArchX86::new(object)?),
+        object::Architecture::I386 | object::Architecture::X86_64 => {
+            Box::new(x86::ArchX86::new(object)?)
+        }
         #[cfg(feature = "arm")]
-        Architecture::Arm => Box::new(arm::ObjArchArm::new(object)?),
+        object::Architecture::Arm => Box::new(arm::ArchArm::new(object)?),
         #[cfg(feature = "arm64")]
-        Architecture::Aarch64 => Box::new(arm64::ObjArchArm64::new(object)?),
+        object::Architecture::Aarch64 => Box::new(arm64::ArchArm64::new(object)?),
+        #[cfg(feature = "superh")]
+        object::Architecture::SuperH => Box::new(superh::ArchSuperH::new(object)?),
         arch => bail!("Unsupported architecture: {arch:?}"),
     })
 }
+
+#[derive(Debug, Default)]
+pub struct ArchDummy {}
+
+impl ArchDummy {
+    pub fn new() -> Box<Self> { Box::new(Self {}) }
+}
+
+impl Arch for ArchDummy {
+    fn scan_instructions_internal(
+        &self,
+        _address: u64,
+        _code: &[u8],
+        _section_index: usize,
+        _relocations: &[Relocation],
+        _diff_config: &DiffObjConfig,
+    ) -> Result<Vec<InstructionRef>> {
+        Ok(Vec::new())
+    }
+
+    fn display_instruction(
+        &self,
+        _resolved: ResolvedInstructionRef,
+        _diff_config: &DiffObjConfig,
+        _cb: &mut dyn FnMut(InstructionPart) -> Result<()>,
+    ) -> Result<()> {
+        Ok(())
+    }
+
+    fn data_reloc_size(&self, _flags: RelocationFlags) -> usize { 0 }
+}
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum RelocationOverrideTarget {
+    Keep,
+    Skip,
+    Symbol(object::SymbolIndex),
+    Section(object::SectionIndex),
+}
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub struct RelocationOverride {
+    pub target: RelocationOverrideTarget,
+    pub addend: i64,
+}

objdiff-core/src/arch/ppc.rs

@@ -1,741 +0,0 @@
-use std::{
-    borrow::Cow,
-    collections::{BTreeMap, HashMap, HashSet},
-};
-
-use anyhow::{bail, ensure, Result};
-use byteorder::BigEndian;
-use cwextab::{decode_extab, ExceptionTableData};
-use object::{
-    elf, File, Object, ObjectSection, ObjectSymbol, Relocation, RelocationFlags, RelocationTarget,
-    Symbol, SymbolKind,
-};
-use ppc750cl::{Argument, Arguments, Ins, InsIter, Opcode, ParsedIns, GPR};
-
-use crate::{
-    arch::{DataType, ObjArch, ProcessCodeResult},
-    diff::DiffObjConfig,
-    obj::{ObjIns, ObjInsArg, ObjInsArgValue, ObjReloc, ObjSection, ObjSymbol},
-};
-
-// Relative relocation, can be Simm, Offset or BranchDest
-fn is_relative_arg(arg: &Argument) -> bool {
-    matches!(arg, Argument::Simm(_) | Argument::Offset(_) | Argument::BranchDest(_))
-}
-
-// Relative or absolute relocation, can be Uimm, Simm or Offset
-fn is_rel_abs_arg(arg: &Argument) -> bool {
-    matches!(arg, Argument::Uimm(_) | Argument::Simm(_) | Argument::Offset(_))
-}
-
-fn is_offset_arg(arg: &Argument) -> bool { matches!(arg, Argument::Offset(_)) }
-
-pub struct ObjArchPpc {
-    /// Exception info
-    pub extab: Option<BTreeMap<usize, ExceptionInfo>>,
-}
-
-impl ObjArchPpc {
-    pub fn new(file: &File) -> Result<Self> { Ok(Self { extab: decode_exception_info(file)? }) }
-}
-
-impl ObjArch for ObjArchPpc {
-    fn process_code(
-        &self,
-        address: u64,
-        code: &[u8],
-        _section_index: usize,
-        relocations: &[ObjReloc],
-        line_info: &BTreeMap<u64, u32>,
-        config: &DiffObjConfig,
-    ) -> Result<ProcessCodeResult> {
-        let ins_count = code.len() / 4;
-        let mut ops = Vec::<u16>::with_capacity(ins_count);
-        let mut insts = Vec::<ObjIns>::with_capacity(ins_count);
-        let fake_pool_reloc_for_addr =
-            generate_fake_pool_reloc_for_addr_mapping(address, code, relocations);
-        for (cur_addr, mut ins) in InsIter::new(code, address as u32) {
-            let reloc = relocations.iter().find(|r| (r.address as u32 & !3) == cur_addr);
-            if let Some(reloc) = reloc {
-                // Zero out relocations
-                ins.code = match reloc.flags {
-                    RelocationFlags::Elf { r_type: elf::R_PPC_EMB_SDA21 } => ins.code & !0x1FFFFF,
-                    RelocationFlags::Elf { r_type: elf::R_PPC_REL24 } => ins.code & !0x3FFFFFC,
-                    RelocationFlags::Elf { r_type: elf::R_PPC_REL14 } => ins.code & !0xFFFC,
-                    RelocationFlags::Elf {
-                        r_type: elf::R_PPC_ADDR16_HI | elf::R_PPC_ADDR16_HA | elf::R_PPC_ADDR16_LO,
-                    } => ins.code & !0xFFFF,
-                    _ => ins.code,
-                };
-            }
-
-            let orig = ins.basic().to_string();
-            let simplified = ins.simplified();
-            let formatted = simplified.to_string();
-
-            let mut reloc_arg = None;
-            if let Some(reloc) = reloc {
-                match reloc.flags {
-                    RelocationFlags::Elf { r_type: elf::R_PPC_EMB_SDA21 } => {
-                        reloc_arg = Some(1);
-                    }
-                    RelocationFlags::Elf { r_type: elf::R_PPC_REL24 | elf::R_PPC_REL14 } => {
-                        reloc_arg = simplified.args.iter().rposition(is_relative_arg);
-                    }
-                    RelocationFlags::Elf {
-                        r_type: elf::R_PPC_ADDR16_HI | elf::R_PPC_ADDR16_HA | elf::R_PPC_ADDR16_LO,
-                    } => {
-                        reloc_arg = simplified.args.iter().rposition(is_rel_abs_arg);
-                    }
-                    _ => {}
-                }
-            }
-
-            let mut args = vec![];
-            let mut branch_dest = None;
-            let mut writing_offset = false;
-            for (idx, arg) in simplified.args_iter().enumerate() {
-                if idx > 0 && !writing_offset {
-                    args.push(ObjInsArg::PlainText(config.separator().into()));
-                }
-
-                if reloc_arg == Some(idx) {
-                    let reloc = reloc.unwrap();
-                    push_reloc(&mut args, reloc)?;
-                    // For @sda21, we can omit the register argument
-                    if matches!(reloc.flags, RelocationFlags::Elf { r_type: elf::R_PPC_EMB_SDA21 })
-                        // Sanity check: the next argument should be r0
-                        && matches!(simplified.args.get(idx + 1), Some(Argument::GPR(GPR(0))))
-                    {
-                        break;
-                    }
-                } else {
-                    match arg {
-                        Argument::Simm(simm) => {
-                            args.push(ObjInsArg::Arg(ObjInsArgValue::Signed(simm.0 as i64)));
-                        }
-                        Argument::Uimm(uimm) => {
-                            args.push(ObjInsArg::Arg(ObjInsArgValue::Unsigned(uimm.0 as u64)));
-                        }
-                        Argument::Offset(offset) => {
-                            args.push(ObjInsArg::Arg(ObjInsArgValue::Signed(offset.0 as i64)));
-                        }
-                        Argument::BranchDest(dest) => {
-                            let dest = cur_addr.wrapping_add_signed(dest.0) as u64;
-                            args.push(ObjInsArg::BranchDest(dest));
-                            branch_dest = Some(dest);
-                        }
-                        _ => {
-                            args.push(ObjInsArg::Arg(ObjInsArgValue::Opaque(
-                                arg.to_string().into(),
-                            )));
-                        }
-                    };
-                }
-
-                if writing_offset {
-                    args.push(ObjInsArg::PlainText(")".into()));
-                    writing_offset = false;
-                }
-                if is_offset_arg(arg) {
-                    args.push(ObjInsArg::PlainText("(".into()));
-                    writing_offset = true;
-                }
-            }
-
-            if reloc.is_none() {
-                if let Some(fake_pool_reloc) = fake_pool_reloc_for_addr.get(&cur_addr) {
-                    // If this instruction has a fake pool relocation, show it as a fake argument
-                    // at the end of the line.
-                    args.push(ObjInsArg::PlainText(" ".into()));
-                    push_reloc(&mut args, fake_pool_reloc)?;
-                }
-            }
-
-            ops.push(ins.op as u16);
-            let line = line_info.range(..=cur_addr as u64).last().map(|(_, &b)| b);
-            insts.push(ObjIns {
-                address: cur_addr as u64,
-                size: 4,
-                mnemonic: Cow::Borrowed(simplified.mnemonic),
-                args,
-                reloc: reloc.or(fake_pool_reloc_for_addr.get(&cur_addr)).cloned(),
-                op: ins.op as u16,
-                branch_dest,
-                line,
-                formatted,
-                orig: Some(orig),
-            });
-        }
-        Ok(ProcessCodeResult { ops, insts })
-    }
-
-    fn implcit_addend(
-        &self,
-        _file: &File<'_>,
-        _section: &ObjSection,
-        address: u64,
-        reloc: &Relocation,
-    ) -> Result<i64> {
-        bail!("Unsupported PPC implicit relocation {:#x}:{:?}", address, reloc.flags())
-    }
-
-    fn demangle(&self, name: &str) -> Option<String> {
-        cwdemangle::demangle(name, &cwdemangle::DemangleOptions::default())
-    }
-
-    fn display_reloc(&self, flags: RelocationFlags) -> Cow<'static, str> {
-        match flags {
-            RelocationFlags::Elf { r_type } => match r_type {
-                elf::R_PPC_NONE => Cow::Borrowed("R_PPC_NONE"), // We use this for fake pool relocs
-                elf::R_PPC_ADDR16_LO => Cow::Borrowed("R_PPC_ADDR16_LO"),
-                elf::R_PPC_ADDR16_HI => Cow::Borrowed("R_PPC_ADDR16_HI"),
-                elf::R_PPC_ADDR16_HA => Cow::Borrowed("R_PPC_ADDR16_HA"),
-                elf::R_PPC_EMB_SDA21 => Cow::Borrowed("R_PPC_EMB_SDA21"),
-                elf::R_PPC_ADDR32 => Cow::Borrowed("R_PPC_ADDR32"),
-                elf::R_PPC_UADDR32 => Cow::Borrowed("R_PPC_UADDR32"),
-                elf::R_PPC_REL24 => Cow::Borrowed("R_PPC_REL24"),
-                elf::R_PPC_REL14 => Cow::Borrowed("R_PPC_REL14"),
-                _ => Cow::Owned(format!("<{flags:?}>")),
-            },
-            _ => Cow::Owned(format!("<{flags:?}>")),
-        }
-    }
-
-    fn get_reloc_byte_size(&self, flags: RelocationFlags) -> usize {
-        match flags {
-            RelocationFlags::Elf { r_type } => match r_type {
-                elf::R_PPC_ADDR32 => 4,
-                elf::R_PPC_UADDR32 => 4,
-                _ => 1,
-            },
-            _ => 1,
-        }
-    }
-
-    fn guess_data_type(&self, instruction: &ObjIns) -> Option<super::DataType> {
-        if instruction.reloc.as_ref().is_some_and(|r| r.target.name.starts_with("@stringBase")) {
-            return Some(DataType::String);
-        }
-
-        guess_data_type_from_load_store_inst_op(Opcode::from(instruction.op as u8))
-    }
-
-    fn display_data_type(&self, ty: DataType, bytes: &[u8]) -> Option<String> {
-        ty.display_bytes::<BigEndian>(bytes)
-    }
-
-    fn ppc(&self) -> Option<&ObjArchPpc> { Some(self) }
-}
-
-impl ObjArchPpc {
-    pub fn extab_for_symbol(&self, symbol: &ObjSymbol) -> Option<&ExceptionInfo> {
-        symbol.original_index.and_then(|i| self.extab.as_ref()?.get(&i))
-    }
-}
-
-fn push_reloc(args: &mut Vec<ObjInsArg>, reloc: &ObjReloc) -> Result<()> {
-    match reloc.flags {
-        RelocationFlags::Elf { r_type } => match r_type {
-            elf::R_PPC_ADDR16_LO => {
-                args.push(ObjInsArg::Reloc);
-                args.push(ObjInsArg::PlainText("@l".into()));
-            }
-            elf::R_PPC_ADDR16_HI => {
-                args.push(ObjInsArg::Reloc);
-                args.push(ObjInsArg::PlainText("@h".into()));
-            }
-            elf::R_PPC_ADDR16_HA => {
-                args.push(ObjInsArg::Reloc);
-                args.push(ObjInsArg::PlainText("@ha".into()));
-            }
-            elf::R_PPC_EMB_SDA21 => {
-                args.push(ObjInsArg::Reloc);
-                args.push(ObjInsArg::PlainText("@sda21".into()));
-            }
-            elf::R_PPC_ADDR32 | elf::R_PPC_UADDR32 | elf::R_PPC_REL24 | elf::R_PPC_REL14 => {
-                args.push(ObjInsArg::Reloc);
-            }
-            elf::R_PPC_NONE => {
-                // Fake pool relocation.
-                args.push(ObjInsArg::PlainText("<".into()));
-                args.push(ObjInsArg::Reloc);
-                args.push(ObjInsArg::PlainText(">".into()));
-            }
-            _ => bail!("Unsupported ELF PPC relocation type {r_type}"),
-        },
-        flags => bail!("Unsupported PPC relocation kind: {flags:?}"),
-    };
-    Ok(())
-}
-
-#[derive(Debug, Clone)]
-pub struct ExtabSymbolRef {
-    pub original_index: usize,
-    pub name: String,
-    pub demangled_name: Option<String>,
-}
-
-#[derive(Debug, Clone)]
-pub struct ExceptionInfo {
-    pub eti_symbol: ExtabSymbolRef,
-    pub etb_symbol: ExtabSymbolRef,
-    pub data: ExceptionTableData,
-    pub dtors: Vec<ExtabSymbolRef>,
-}
-
-fn decode_exception_info(file: &File<'_>) -> Result<Option<BTreeMap<usize, ExceptionInfo>>> {
-    let Some(extab_section) = file.section_by_name("extab") else {
-        return Ok(None);
-    };
-    let Some(extabindex_section) = file.section_by_name("extabindex") else {
-        return Ok(None);
-    };
-
-    let mut result = BTreeMap::new();
-    let extab_relocations = extab_section.relocations().collect::<BTreeMap<u64, Relocation>>();
-    let extabindex_relocations =
-        extabindex_section.relocations().collect::<BTreeMap<u64, Relocation>>();
-
-    for extabindex in file.symbols().filter(|symbol| {
-        symbol.section_index() == Some(extabindex_section.index())
-            && symbol.kind() == SymbolKind::Data
-    }) {
-        if extabindex.size() != 12 {
-            log::warn!("Invalid extabindex entry size {}", extabindex.size());
-            continue;
-        }
-
-        // Each extabindex entry has two relocations:
-        // - 0x0: The function that the exception table is for
-        // - 0x8: The relevant entry in extab section
-        let Some(extab_func_reloc) = extabindex_relocations.get(&extabindex.address()) else {
-            log::warn!("Failed to find function relocation for extabindex entry");
-            continue;
-        };
-        let Some(extab_reloc) = extabindex_relocations.get(&(extabindex.address() + 8)) else {
-            log::warn!("Failed to find extab relocation for extabindex entry");
-            continue;
-        };
-
-        // Resolve the function and extab symbols
-        let Some(extab_func) = relocation_symbol(file, extab_func_reloc)? else {
-            log::warn!("Failed to find function symbol for extabindex entry");
-            continue;
-        };
-        let extab_func_name = extab_func.name()?;
-        let Some(extab) = relocation_symbol(file, extab_reloc)? else {
-            log::warn!("Failed to find extab symbol for extabindex entry");
-            continue;
-        };
-
-        let extab_start_addr = extab.address() - extab_section.address();
-        let extab_end_addr = extab_start_addr + extab.size();
-
-        // All relocations in the extab section are dtors
-        let mut dtors: Vec<ExtabSymbolRef> = vec![];
-        for (_, reloc) in extab_relocations.range(extab_start_addr..extab_end_addr) {
-            let Some(symbol) = relocation_symbol(file, reloc)? else {
-                log::warn!("Failed to find symbol for extab relocation");
-                continue;
-            };
-            dtors.push(make_symbol_ref(&symbol)?);
-        }
-
-        // Decode the extab data
-        let Some(extab_data) = extab_section.data_range(extab_start_addr, extab.size())? else {
-            log::warn!("Failed to get extab data for function {}", extab_func_name);
-            continue;
-        };
-        let data = match decode_extab(extab_data) {
-            Ok(decoded_data) => decoded_data,
-            Err(e) => {
-                log::warn!(
-                    "Exception table decoding failed for function {}, reason: {}",
-                    extab_func_name,
-                    e.to_string()
-                );
-                return Ok(None);
-            }
-        };
-
-        //Add the new entry to the list
-        result.insert(extab_func.index().0, ExceptionInfo {
-            eti_symbol: make_symbol_ref(&extabindex)?,
-            etb_symbol: make_symbol_ref(&extab)?,
-            data,
-            dtors,
-        });
-    }
-
-    Ok(Some(result))
-}
-
-fn relocation_symbol<'data, 'file>(
-    file: &'file File<'data>,
-    relocation: &Relocation,
-) -> Result<Option<Symbol<'data, 'file>>> {
-    let addend = relocation.addend();
-    match relocation.target() {
-        RelocationTarget::Symbol(idx) => {
-            ensure!(addend == 0, "Symbol relocations must have zero addend");
-            Ok(Some(file.symbol_by_index(idx)?))
-        }
-        RelocationTarget::Section(idx) => {
-            ensure!(addend >= 0, "Section relocations must have non-negative addend");
-            let addend = addend as u64;
-            Ok(file
-                .symbols()
-                .find(|symbol| symbol.section_index() == Some(idx) && symbol.address() == addend))
-        }
-        target => bail!("Unsupported relocation target: {target:?}"),
-    }
-}
-
-fn make_symbol_ref(symbol: &Symbol) -> Result<ExtabSymbolRef> {
-    let name = symbol.name()?.to_string();
-    let demangled_name = cwdemangle::demangle(&name, &cwdemangle::DemangleOptions::default());
-    Ok(ExtabSymbolRef { original_index: symbol.index().0, name, demangled_name })
-}
-
-fn guess_data_type_from_load_store_inst_op(inst_op: Opcode) -> Option<DataType> {
-    match inst_op {
-        Opcode::Lbz | Opcode::Lbzu | Opcode::Lbzux | Opcode::Lbzx => Some(DataType::Int8),
-        Opcode::Lhz | Opcode::Lhzu | Opcode::Lhzux | Opcode::Lhzx => Some(DataType::Int16),
-        Opcode::Lha | Opcode::Lhau | Opcode::Lhaux | Opcode::Lhax => Some(DataType::Int16),
-        Opcode::Lwz | Opcode::Lwzu | Opcode::Lwzux | Opcode::Lwzx => Some(DataType::Int32),
-        Opcode::Lfs | Opcode::Lfsu | Opcode::Lfsux | Opcode::Lfsx => Some(DataType::Float),
-        Opcode::Lfd | Opcode::Lfdu | Opcode::Lfdux | Opcode::Lfdx => Some(DataType::Double),
-
-        Opcode::Stb | Opcode::Stbu | Opcode::Stbux | Opcode::Stbx => Some(DataType::Int8),
-        Opcode::Sth | Opcode::Sthu | Opcode::Sthux | Opcode::Sthx => Some(DataType::Int16),
-        Opcode::Stw | Opcode::Stwu | Opcode::Stwux | Opcode::Stwx => Some(DataType::Int32),
-        Opcode::Stfs | Opcode::Stfsu | Opcode::Stfsux | Opcode::Stfsx => Some(DataType::Float),
-        Opcode::Stfd | Opcode::Stfdu | Opcode::Stfdux | Opcode::Stfdx => Some(DataType::Double),
-        _ => None,
-    }
-}
-
-// Given an instruction, determine if it could accessing data at the address in a register.
-// If so, return the offset added to the register's address, the register containing that address,
-// and (optionally) which destination register the address is being copied into.
-fn get_offset_and_addr_gpr_for_possible_pool_reference(
-    opcode: Opcode,
-    simplified: &ParsedIns,
-) -> Option<(i16, GPR, Option<GPR>)> {
-    let args = &simplified.args;
-    if guess_data_type_from_load_store_inst_op(opcode).is_some() {
-        match (args[1], args[2]) {
-            (Argument::Offset(offset), Argument::GPR(addr_src_gpr)) => {
-                // e.g. lwz. Immediate offset.
-                Some((offset.0, addr_src_gpr, None))
-            }
-            (Argument::GPR(addr_src_gpr), Argument::GPR(_offset_gpr)) => {
-                // e.g. lwzx. The offset is in a register and was likely calculated from an index.
-                // Treat the offset as being 0 in this case to show the first element of the array.
-                // It may be possible to show all elements by figuring out the stride of the array
-                // from the calculations performed on the index before it's put into offset_gpr, but
-                // this would be much more complicated, so it's not currently done.
-                Some((0, addr_src_gpr, None))
-            }
-            _ => None,
-        }
-    } else {
-        // If it's not a load/store instruction, there's two more possibilities we need to handle.
-        // 1. It could be loading a pointer to a string.
-        // 2. It could be moving the relocation address plus an offset into a different register to
-        //    load from later.
-        // If either of these match, we also want to return the destination register that the
-        // address is being copied into so that we can detect any future references to that new
-        // register as well.
-        match (opcode, args[0], args[1], args[2]) {
-            (
-                Opcode::Addi,
-                Argument::GPR(addr_dst_gpr),
-                Argument::GPR(addr_src_gpr),
-                Argument::Simm(simm),
-            ) => Some((simm.0, addr_src_gpr, Some(addr_dst_gpr))),
-            (
-                // `mr` or `mr.`
-                Opcode::Or,
-                Argument::GPR(addr_dst_gpr),
-                Argument::GPR(addr_src_gpr),
-                Argument::None,
-            ) => Some((0, addr_src_gpr, Some(addr_dst_gpr))),
-            (
-                Opcode::Add,
-                Argument::GPR(addr_dst_gpr),
-                Argument::GPR(addr_src_gpr),
-                Argument::GPR(_offset_gpr),
-            ) => Some((0, addr_src_gpr, Some(addr_dst_gpr))),
-            _ => None,
-        }
-    }
-}
-
-// Remove the relocation we're keeping track of in a particular register when an instruction reuses
-// that register to hold some other value, unrelated to pool relocation addresses.
-fn clear_overwritten_gprs(ins: Ins, gpr_pool_relocs: &mut HashMap<u8, ObjReloc>) {
-    let mut def_args = Arguments::default();
-    ins.parse_defs(&mut def_args);
-    for arg in def_args {
-        if let Argument::GPR(gpr) = arg {
-            if ins.op == Opcode::Lmw {
-                // `lmw` overwrites all registers from rd to r31.
-                // ppc750cl only returns rd itself, so we manually clear the rest of them.
-                for reg in gpr.0..31 {
-                    gpr_pool_relocs.remove(&reg);
-                }
-                break;
-            }
-            gpr_pool_relocs.remove(&gpr.0);
-        }
-    }
-}
-
-// We create a fake relocation for an instruction, vaguely simulating what the actual relocation
-// might have looked like if it wasn't pooled. This is so minimal changes are needed to display
-// pooled accesses vs non-pooled accesses. We set the relocation type to R_PPC_NONE to indicate that
-// there isn't really a relocation here, as copying the pool relocation's type wouldn't make sense.
-// Also, if this instruction is accessing the middle of a symbol instead of the start, we add an
-// addend to indicate that.
-fn make_fake_pool_reloc(offset: i16, cur_addr: u32, pool_reloc: &ObjReloc) -> Option<ObjReloc> {
-    let offset_from_pool = pool_reloc.addend + offset as i64;
-    let target_address = pool_reloc.target.address.checked_add_signed(offset_from_pool)?;
-    let target;
-    let addend;
-    if pool_reloc.target.orig_section_index.is_some() {
-        // If the target symbol is within this current object, then we also need to create a fake
-        // target symbol to go inside our fake relocation. This is because we don't have access to
-        // list of all symbols in this section, so we can't find the real symbol within the pool
-        // based on its address yet. Instead we make a placeholder that has the correct
-        // `orig_section_index` and `address` fields, and then later on when this information is
-        // displayed to the user, we can find the real symbol by searching through the object's
-        // section's symbols for one that contains this address.
-        target = ObjSymbol {
-            name: "".to_string(),
-            demangled_name: None,
-            address: target_address,
-            section_address: 0,
-            size: 0,
-            size_known: false,
-            kind: Default::default(),
-            flags: Default::default(),
-            orig_section_index: pool_reloc.target.orig_section_index,
-            virtual_address: None,
-            original_index: None,
-            bytes: vec![],
-        };
-        // The addend is also fake because we don't know yet if the `target_address` here is the exact
-        // start of the symbol or if it's in the middle of it.
-        addend = 0;
-    } else {
-        // But if the target symbol is in a different object (extern), then we simply copy the pool
-        // relocation's target. This is because it won't be possible to locate the actual symbol
-        // later on based only off of an offset without knowing the object or section it's in. And
-        // doing that for external symbols would also be unnecessary, because when the compiler
-        // generates an instruction that accesses an external "pool" plus some offset, that won't be
-        // a normal pool that contains other symbols within it that we want to display. It will be
-        // something like a vtable for a class with multiple inheritance (for example, dCcD_Cyl in
-        // The Wind Waker). So just showing that vtable symbol plus an addend to represent the
-        // offset into it works fine in this case, no fake symbol to hold an address is necessary.
-        target = pool_reloc.target.clone();
-        addend = pool_reloc.addend;
-    };
-    Some(ObjReloc {
-        flags: RelocationFlags::Elf { r_type: elf::R_PPC_NONE },
-        address: cur_addr as u64,
-        target,
-        addend,
-    })
-}
-
-// Searches through all instructions in a function, determining which registers have the addresses
-// of pooled data relocations in them, finding which instructions load data from those addresses,
-// and constructing a mapping of the address of that instruction to a "fake pool relocation" that
-// simulates what that instruction's relocation would look like if data hadn't been pooled.
-// This method tries to follow the function's proper control flow. It keeps track of a queue of
-// states it hasn't traversed yet, where each state holds an instruction address and a HashMap of
-// which registers hold which pool relocations at that point.
-// When a conditional or unconditional branch is encountered, the destination of the branch is added
-// to the queue. Conditional branches will traverse both the path where the branch is taken and the
-// one where it's not. Unconditional branches only follow the branch, ignoring any code immediately
-// after the branch instruction.
-// Limitations: This method cannot read jump tables. This is because the jump tables are located in
-// the .data section, but ObjArch.process_code only has access to the .text section. In order to
-// work around this limitation and avoid completely missing most code inside switch statements that
-// use jump tables, we instead guess that any parts of a function we missed were switch cases, and
-// traverse them as if the last `bctr` before that address had branched there. This should be fairly
-// accurate in practice - in testing the only instructions it seems to miss are double branches that
-// the compiler generates in error which can never be reached during normal execution anyway.
-fn generate_fake_pool_reloc_for_addr_mapping(
-    func_address: u64,
-    code: &[u8],
-    relocations: &[ObjReloc],
-) -> HashMap<u32, ObjReloc> {
-    let mut visited_ins_addrs = HashSet::new();
-    let mut pool_reloc_for_addr = HashMap::new();
-    let mut ins_iters_with_gpr_state =
-        vec![(InsIter::new(code, func_address as u32), HashMap::new())];
-    let mut gpr_state_at_bctr = BTreeMap::new();
-    while let Some((ins_iter, mut gpr_pool_relocs)) = ins_iters_with_gpr_state.pop() {
-        for (cur_addr, ins) in ins_iter {
-            if visited_ins_addrs.contains(&cur_addr) {
-                // Avoid getting stuck in an infinite loop when following looping branches.
-                break;
-            }
-            visited_ins_addrs.insert(cur_addr);
-
-            let simplified = ins.simplified();
-
-            // First handle traversing the function's control flow.
-            let mut branch_dest = None;
-            for arg in simplified.args_iter() {
-                if let Argument::BranchDest(dest) = arg {
-                    let dest = cur_addr.wrapping_add_signed(dest.0);
-                    branch_dest = Some(dest);
-                    break;
-                }
-            }
-            if let Some(branch_dest) = branch_dest {
-                if branch_dest >= func_address as u32
-                    && (branch_dest - func_address as u32) < code.len() as u32
-                {
-                    let dest_offset_into_func = branch_dest - func_address as u32;
-                    let dest_code_slice = &code[dest_offset_into_func as usize..];
-                    match ins.op {
-                        Opcode::Bc => {
-                            // Conditional branch.
-                            // Add the branch destination to the queue to do later.
-                            ins_iters_with_gpr_state.push((
-                                InsIter::new(dest_code_slice, branch_dest),
-                                gpr_pool_relocs.clone(),
-                            ));
-                            // Then continue on with the current iterator.
-                        }
-                        Opcode::B => {
-                            if simplified.mnemonic != "bl" {
-                                // Unconditional branch.
-                                // Add the branch destination to the queue.
-                                ins_iters_with_gpr_state.push((
-                                    InsIter::new(dest_code_slice, branch_dest),
-                                    gpr_pool_relocs.clone(),
-                                ));
-                                // Break out of the current iterator so we can do the newly added one.
-                                break;
-                            }
-                        }
-                        _ => unreachable!(),
-                    }
-                }
-            }
-            if let Opcode::Bcctr = ins.op {
-                if simplified.mnemonic == "bctr" {
-                    // Unconditional branch to count register.
-                    // Likely a jump table.
-                    gpr_state_at_bctr.insert(cur_addr, gpr_pool_relocs.clone());
-                }
-            }
-
-            // Then handle keeping track of which GPR contains which pool relocation.
-            let reloc = relocations.iter().find(|r| (r.address as u32 & !3) == cur_addr);
-            if let Some(reloc) = reloc {
-                // This instruction has a real relocation, so it may be a pool load we want to keep
-                // track of.
-                let args = &simplified.args;
-                match (ins.op, args[0], args[1], args[2]) {
-                    (
-                        // `lis` + `addi`
-                        Opcode::Addi,
-                        Argument::GPR(addr_dst_gpr),
-                        Argument::GPR(_addr_src_gpr),
-                        Argument::Simm(_simm),
-                    ) => {
-                        gpr_pool_relocs.insert(addr_dst_gpr.0, reloc.clone());
-                    }
-                    (
-                        // `lis` + `ori`
-                        Opcode::Ori,
-                        Argument::GPR(addr_dst_gpr),
-                        Argument::GPR(_addr_src_gpr),
-                        Argument::Uimm(_uimm),
-                    ) => {
-                        gpr_pool_relocs.insert(addr_dst_gpr.0, reloc.clone());
-                    }
-                    (Opcode::B, _, _, _) => {
-                        if simplified.mnemonic == "bl" {
-                            // When encountering a function call, clear any active pool relocations from
-                            // the volatile registers (r0, r3-r12), but not the nonvolatile registers.
-                            gpr_pool_relocs.remove(&0);
-                            for gpr in 3..12 {
-                                gpr_pool_relocs.remove(&gpr);
-                            }
-                        }
-                    }
-                    _ => {
-                        clear_overwritten_gprs(ins, &mut gpr_pool_relocs);
-                    }
-                }
-            } else if let Some((offset, addr_src_gpr, addr_dst_gpr)) =
-                get_offset_and_addr_gpr_for_possible_pool_reference(ins.op, &simplified)
-            {
-                // This instruction doesn't have a real relocation, so it may be a reference to one of
-                // the already-loaded pools.
-                if let Some(pool_reloc) = gpr_pool_relocs.get(&addr_src_gpr.0) {
-                    if let Some(fake_pool_reloc) =
-                        make_fake_pool_reloc(offset, cur_addr, pool_reloc)
-                    {
-                        pool_reloc_for_addr.insert(cur_addr, fake_pool_reloc);
-                    }
-                    if let Some(addr_dst_gpr) = addr_dst_gpr {
-                        // If the address of the pool relocation got copied into another register, we
-                        // need to keep track of it in that register too as future instructions may
-                        // reference the symbol indirectly via this new register, instead of the
-                        // register the symbol's address was originally loaded into.
-                        // For example, the start of the function might `lis` + `addi` the start of the
-                        // ...data pool into r25, and then later the start of a loop will `addi` r25
-                        // with the offset within the .data section of an array variable into r21.
-                        // Then the body of the loop will `lwzx` one of the array elements from r21.
-                        let mut new_reloc = pool_reloc.clone();
-                        new_reloc.addend += offset as i64;
-                        gpr_pool_relocs.insert(addr_dst_gpr.0, new_reloc);
-                    } else {
-                        clear_overwritten_gprs(ins, &mut gpr_pool_relocs);
-                    }
-                } else {
-                    clear_overwritten_gprs(ins, &mut gpr_pool_relocs);
-                }
-            } else {
-                clear_overwritten_gprs(ins, &mut gpr_pool_relocs);
-            }
-        }
-
-        // Finally, if we're about to finish the outer loop and don't have any more control flow to
-        // follow, we check if there are any instruction addresses in this function that we missed.
-        // If so, and if there were any `bctr` instructions before those points in this function,
-        // then we try to traverse those missing spots as switch cases.
-        if ins_iters_with_gpr_state.is_empty() {
-            let unseen_addrs = (func_address as u32..func_address as u32 + code.len() as u32)
-                .step_by(4)
-                .filter(|addr| !visited_ins_addrs.contains(addr));
-            for unseen_addr in unseen_addrs {
-                let prev_bctr_gpr_state = gpr_state_at_bctr
-                    .iter()
-                    .filter(|(&addr, _)| addr < unseen_addr)
-                    .min_by_key(|(&addr, _)| addr)
-                    .map(|(_, gpr_state)| gpr_state);
-                if let Some(gpr_pool_relocs) = prev_bctr_gpr_state {
-                    let dest_offset_into_func = unseen_addr - func_address as u32;
-                    let dest_code_slice = &code[dest_offset_into_func as usize..];
-                    ins_iters_with_gpr_state.push((
-                        InsIter::new(dest_code_slice, unseen_addr),
-                        gpr_pool_relocs.clone(),
-                    ));
-                    break;
-                }
-            }
-        }
-    }
-
-    pool_reloc_for_addr
-}

objdiff-core/src/arch/ppc/flow_analysis.rs

@@ -0,0 +1,649 @@
+use alloc::{
+    boxed::Box,
+    collections::{BTreeMap, BTreeSet},
+    format,
+    string::{String, ToString},
+    vec::Vec,
+};
+use core::{
+    ffi::CStr,
+    ops::{Index, IndexMut},
+};
+
+use itertools::Itertools;
+use powerpc::{Extensions, Simm};
+
+use crate::{
+    arch::DataType,
+    obj::{FlowAnalysisResult, FlowAnalysisValue, Object, Relocation, Symbol},
+    util::{RawDouble, RawFloat},
+};
+
+fn is_store_instruction(op: powerpc::Opcode) -> bool {
+    use powerpc::Opcode;
+    matches!(
+        op,
+        Opcode::Stbux
+            | Opcode::Stbx
+            | Opcode::Stfdux
+            | Opcode::Stfdx
+            | Opcode::Stfiwx
+            | Opcode::Stfsux
+            | Opcode::Stfsx
+            | Opcode::Sthbrx
+            | Opcode::Sthux
+            | Opcode::Sthx
+            | Opcode::Stswi
+            | Opcode::Stswx
+            | Opcode::Stwbrx
+            | Opcode::Stwcx_
+            | Opcode::Stwux
+            | Opcode::Stwx
+            | Opcode::Stwu
+            | Opcode::Stb
+            | Opcode::Stbu
+            | Opcode::Sth
+            | Opcode::Sthu
+            | Opcode::Stmw
+            | Opcode::Stfs
+            | Opcode::Stfsu
+            | Opcode::Stfd
+            | Opcode::Stfdu
+    )
+}
+
+pub fn guess_data_type_from_load_store_inst_op(inst_op: powerpc::Opcode) -> Option<DataType> {
+    use powerpc::Opcode;
+    match inst_op {
+        Opcode::Lbz | Opcode::Lbzu | Opcode::Lbzux | Opcode::Lbzx => Some(DataType::Int8),
+        Opcode::Lhz | Opcode::Lhzu | Opcode::Lhzux | Opcode::Lhzx => Some(DataType::Int16),
+        Opcode::Lha | Opcode::Lhau | Opcode::Lhaux | Opcode::Lhax => Some(DataType::Int16),
+        Opcode::Lwz | Opcode::Lwzu | Opcode::Lwzux | Opcode::Lwzx => Some(DataType::Int32),
+        Opcode::Lfs | Opcode::Lfsu | Opcode::Lfsux | Opcode::Lfsx => Some(DataType::Float),
+        Opcode::Lfd | Opcode::Lfdu | Opcode::Lfdux | Opcode::Lfdx => Some(DataType::Double),
+
+        Opcode::Stb | Opcode::Stbu | Opcode::Stbux | Opcode::Stbx => Some(DataType::Int8),
+        Opcode::Sth | Opcode::Sthu | Opcode::Sthux | Opcode::Sthx => Some(DataType::Int16),
+        Opcode::Stw | Opcode::Stwu | Opcode::Stwux | Opcode::Stwx => Some(DataType::Int32),
+        Opcode::Stfs | Opcode::Stfsu | Opcode::Stfsux | Opcode::Stfsx => Some(DataType::Float),
+        Opcode::Stfd | Opcode::Stfdu | Opcode::Stfdux | Opcode::Stfdx => Some(DataType::Double),
+        _ => None,
+    }
+}
+
+#[derive(Default, PartialEq, Eq, Copy, Clone, Debug, PartialOrd, Ord)]
+enum RegisterContent {
+    #[default]
+    Unknown,
+    Variable, // Multiple potential values
+    FloatConstant(RawFloat),
+    DoubleConstant(RawDouble),
+    IntConstant(i32),
+    InputRegister(u8),
+    Symbol(usize),
+}
+
+impl core::fmt::Display for RegisterContent {
+    fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
+        match self {
+            RegisterContent::Unknown => write!(f, "unknown"),
+            RegisterContent::Variable => write!(f, "variable"),
+            RegisterContent::IntConstant(i) =>
+            // -i is safe because it's at most a 16 bit constant in the i32
+            {
+                if *i >= 0 {
+                    write!(f, "0x{i:x}")
+                } else {
+                    write!(f, "-0x{:x}", -i)
+                }
+            }
+            RegisterContent::FloatConstant(RawFloat(fp)) => write!(f, "{fp:?}f"),
+            RegisterContent::DoubleConstant(RawDouble(fp)) => write!(f, "{fp:?}d"),
+            RegisterContent::InputRegister(p) => write!(f, "input{p}"),
+            RegisterContent::Symbol(_u) => write!(f, "relocation"),
+        }
+    }
+}
+
+#[derive(Clone, PartialEq, Eq, Ord, PartialOrd)]
+struct RegisterState {
+    gpr: [RegisterContent; 32],
+    fpr: [RegisterContent; 32],
+}
+
+impl RegisterState {
+    fn new() -> Self {
+        RegisterState { gpr: [RegisterContent::Unknown; 32], fpr: [RegisterContent::Unknown; 32] }
+    }
+
+    // During a function call, these registers must be assumed trashed.
+    fn clear_volatile(&mut self) {
+        self[powerpc::GPR(0)] = RegisterContent::Unknown;
+        for i in 0..=13 {
+            self[powerpc::GPR(i)] = RegisterContent::Unknown;
+        }
+        for i in 0..=13 {
+            self[powerpc::FPR(i)] = RegisterContent::Unknown;
+        }
+    }
+
+    // Mark potential input values.
+    // Subsequent flow analysis will "realize" that they are not actually inputs if
+    // they get overwritten with another value before getting read.
+    fn set_potential_inputs(&mut self) {
+        for g_reg in 3..=13 {
+            self[powerpc::GPR(g_reg)] = RegisterContent::InputRegister(g_reg);
+        }
+        for f_reg in 1..=13 {
+            self[powerpc::FPR(f_reg)] = RegisterContent::InputRegister(f_reg);
+        }
+    }
+
+    // If the there is no value, we can take the new known value.
+    // If there's a known value different than the new value, the content
+    // must is variable.
+    // Returns whether the current value was updated.
+    fn unify_values(current: &mut RegisterContent, new: &RegisterContent) -> bool {
+        if *current == *new {
+            false
+        } else if *current == RegisterContent::Unknown {
+            *current = *new;
+            true
+        } else if *current == RegisterContent::Variable {
+            // Already variable
+            false
+        } else {
+            *current = RegisterContent::Variable;
+            true
+        }
+    }
+
+    // Unify currently known register contents in a give situation with new
+    // information about the register contents in that situation.
+    // Currently unknown register contents can be filled, but if there are
+    // conflicting contents, we go back to unknown.
+    fn unify(&mut self, other: &RegisterState) -> bool {
+        let mut updated = false;
+        for i in 0..32 {
+            updated |= Self::unify_values(&mut self.gpr[i], &other.gpr[i]);
+            updated |= Self::unify_values(&mut self.fpr[i], &other.fpr[i]);
+        }
+        updated
+    }
+}
+
+impl Index<powerpc::GPR> for RegisterState {
+    type Output = RegisterContent;
+
+    fn index(&self, gpr: powerpc::GPR) -> &Self::Output { &self.gpr[gpr.0 as usize] }
+}
+impl IndexMut<powerpc::GPR> for RegisterState {
+    fn index_mut(&mut self, gpr: powerpc::GPR) -> &mut Self::Output {
+        &mut self.gpr[gpr.0 as usize]
+    }
+}
+
+impl Index<powerpc::FPR> for RegisterState {
+    type Output = RegisterContent;
+
+    fn index(&self, fpr: powerpc::FPR) -> &Self::Output { &self.fpr[fpr.0 as usize] }
+}
+impl IndexMut<powerpc::FPR> for RegisterState {
+    fn index_mut(&mut self, fpr: powerpc::FPR) -> &mut Self::Output {
+        &mut self.fpr[fpr.0 as usize]
+    }
+}
+
+fn execute_instruction(
+    registers: &mut RegisterState,
+    op: &powerpc::Opcode,
+    args: &powerpc::Arguments,
+) {
+    use powerpc::{Argument, GPR, Opcode};
+    match (op, args[0], args[1], args[2]) {
+        (Opcode::Or, Argument::GPR(a), Argument::GPR(b), Argument::GPR(c)) => {
+            // Move is implemented as or with self for ints
+            if b == c {
+                registers[a] = registers[b];
+            } else {
+                registers[a] = RegisterContent::Unknown;
+            }
+        }
+        (Opcode::Fmr, Argument::FPR(a), Argument::FPR(b), _) => {
+            registers[a] = registers[b];
+        }
+        (Opcode::Addi, Argument::GPR(a), Argument::GPR(GPR(0)), Argument::Simm(c)) => {
+            // Load immidiate implemented as addi with addend = r0
+            // Let Addi with other addends fall through to the case which
+            // overwrites the destination
+            registers[a] = RegisterContent::IntConstant(c.0 as i32);
+        }
+        (Opcode::Bcctr, _, _, _) => {
+            // Called a function pointer, may have erased volatile registers
+            registers.clear_volatile();
+        }
+        (Opcode::B, _, _, _) => {
+            if get_branch_offset(args) == 0 {
+                // Call to another function
+                registers.clear_volatile();
+            }
+        }
+        (
+            Opcode::Stbu | Opcode::Sthu | Opcode::Stwu | Opcode::Stfsu | Opcode::Stfdu,
+            _,
+            _,
+            Argument::GPR(rel),
+        ) => {
+            // Storing with update, clear updated register (third arg)
+            registers[rel] = RegisterContent::Unknown;
+        }
+        (
+            Opcode::Stbux | Opcode::Sthux | Opcode::Stwux | Opcode::Stfsux | Opcode::Stfdux,
+            _,
+            Argument::GPR(rel),
+            _,
+        ) => {
+            // Storing indexed with update, clear updated register (second arg)
+            registers[rel] = RegisterContent::Unknown;
+        }
+        (Opcode::Lmw, Argument::GPR(target), _, _) => {
+            // `lmw` overwrites all registers from rd to r31.
+            for reg in target.0..31 {
+                registers[GPR(reg)] = RegisterContent::Unknown;
+            }
+        }
+        (_, Argument::GPR(a), _, _) => {
+            // Store instructions don't modify the GPR
+            if !is_store_instruction(*op) {
+                // Other operations which write to GPR a
+                registers[a] = RegisterContent::Unknown;
+            }
+        }
+        (_, Argument::FPR(a), _, _) => {
+            // Store instructions don't modify the FPR
+            if !is_store_instruction(*op) {
+                // Other operations which write to FPR a
+                registers[a] = RegisterContent::Unknown;
+            }
+        }
+        (_, _, _, _) => {}
+    }
+}
+
+fn get_branch_offset(args: &powerpc::Arguments) -> i32 {
+    for arg in args.iter() {
+        match arg {
+            powerpc::Argument::BranchDest(dest) => return dest.0 / 4,
+            powerpc::Argument::None => break,
+            _ => {}
+        }
+    }
+    0
+}
+
+#[derive(Debug, Default)]
+struct PPCFlowAnalysisResult {
+    argument_contents: BTreeMap<(u64, u8), FlowAnalysisValue>,
+}
+
+impl PPCFlowAnalysisResult {
+    fn set_argument_value_at_address(
+        &mut self,
+        address: u64,
+        argument: u8,
+        value: FlowAnalysisValue,
+    ) {
+        self.argument_contents.insert((address, argument), value);
+    }
+
+    fn new() -> Self { PPCFlowAnalysisResult { argument_contents: Default::default() } }
+}
+
+impl FlowAnalysisResult for PPCFlowAnalysisResult {
+    fn get_argument_value_at_address(
+        &self,
+        address: u64,
+        argument: u8,
+    ) -> Option<&FlowAnalysisValue> {
+        self.argument_contents.get(&(address, argument))
+    }
+}
+
+fn clamp_text_length(s: String, max: usize) -> String {
+    if s.len() <= max { s } else { format!("{}…", s.chars().take(max - 3).collect::<String>()) }
+}
+
+fn get_register_content_from_reloc(
+    reloc: &Relocation,
+    obj: &Object,
+    op: powerpc::Opcode,
+) -> RegisterContent {
+    if let Some(bytes) = obj.symbol_data(reloc.target_symbol) {
+        match guess_data_type_from_load_store_inst_op(op) {
+            Some(DataType::Float) => {
+                RegisterContent::FloatConstant(RawFloat(match obj.endianness {
+                    object::Endianness::Little => {
+                        f32::from_le_bytes(bytes.try_into().unwrap_or([0; 4]))
+                    }
+                    object::Endianness::Big => {
+                        f32::from_be_bytes(bytes.try_into().unwrap_or([0; 4]))
+                    }
+                }))
+            }
+            Some(DataType::Double) => {
+                RegisterContent::DoubleConstant(RawDouble(match obj.endianness {
+                    object::Endianness::Little => {
+                        f64::from_le_bytes(bytes.try_into().unwrap_or([0; 8]))
+                    }
+                    object::Endianness::Big => {
+                        f64::from_be_bytes(bytes.try_into().unwrap_or([0; 8]))
+                    }
+                }))
+            }
+            _ => RegisterContent::Symbol(reloc.target_symbol),
+        }
+    } else {
+        RegisterContent::Symbol(reloc.target_symbol)
+    }
+}
+
+// Executing op with args at cur_address, update current_state with symbols that
+// come from relocations. That is, references to globals, floating point
+// constants, string constants, etc.
+fn fill_registers_from_relocation(
+    reloc: &Relocation,
+    current_state: &mut RegisterState,
+    obj: &Object,
+    op: powerpc::Opcode,
+    args: &powerpc::Arguments,
+) {
+    // Only update the register state for loads. We may store to a reloc
+    // address but that doesn't update register contents.
+    if !is_store_instruction(op) {
+        match (op, args[0]) {
+            // Everything else is a load of some sort
+            (_, powerpc::Argument::GPR(gpr)) => {
+                current_state[gpr] = get_register_content_from_reloc(reloc, obj, op);
+            }
+            (_, powerpc::Argument::FPR(fpr)) => {
+                current_state[fpr] = get_register_content_from_reloc(reloc, obj, op);
+            }
+            _ => {}
+        }
+    }
+}
+
+// Special helper fragments generated by MWCC.
+// See: https://github.com/encounter/decomp-toolkit/blob/main/src/analysis/pass.rs
+const SLEDS: [&str; 6] = ["_savefpr_", "_restfpr_", "_savegpr_", "_restgpr_", "_savev", "_restv"];
+
+fn is_sled_function(name: &str) -> bool { SLEDS.iter().any(|sled| name.starts_with(sled)) }
+
+pub fn ppc_data_flow_analysis(
+    obj: &Object,
+    func_symbol: &Symbol,
+    code: &[u8],
+    relocations: &[Relocation],
+    extensions: Extensions,
+) -> Box<dyn FlowAnalysisResult> {
+    use alloc::collections::VecDeque;
+
+    use powerpc::InsIter;
+    let instructions = InsIter::new(code, func_symbol.address as u32, extensions)
+        .map(|(_addr, ins)| (ins.op, ins.basic().args))
+        .collect_vec();
+
+    let func_address = func_symbol.address;
+
+    // Get initial register values from function parameters
+    let mut initial_register_state = RegisterState::new();
+    initial_register_state.set_potential_inputs();
+
+    let mut execution_queue = VecDeque::<(usize, RegisterState)>::new();
+    execution_queue.push_back((0, initial_register_state));
+
+    // Execute the instructions against abstract data
+    let mut failsafe_counter = 0;
+    let mut taken_branches = BTreeSet::<(usize, RegisterState)>::new();
+    let mut register_state_at = Vec::<RegisterState>::new();
+    let mut completed_first_pass = false;
+    register_state_at.resize_with(instructions.len(), RegisterState::new);
+    while let Some((mut index, mut current_state)) = execution_queue.pop_front() {
+        while let Some((op, args)) = instructions.get(index) {
+            // Record the state at this index
+            // If recording does not result in any changes to the known values
+            // we're done, because the subsequent values are a function of the
+            // current values so we'll get the same result as the last time
+            // we went down this path.
+            // Don't break out if we haven't even completed the first pass
+            // through the function though.
+            if !register_state_at[index].unify(&current_state) && completed_first_pass {
+                break;
+            }
+
+            // Get symbol used in this instruction
+            let cur_addr = (func_address as u32) + ((index * 4) as u32);
+            let reloc = relocations.iter().find(|r| (r.address as u32 & !3) == cur_addr);
+
+            // Is this a branch to a compiler generated helper? These helpers
+            // do not trash registers like normal function calls, so we don't
+            // want to treat this as normal execution.
+            let symbol = reloc.and_then(|r| obj.symbols.get(r.target_symbol));
+            let is_sled_invocation = symbol.is_some_and(|x| is_sled_function(&x.name));
+
+            // Execute the instruction to update the state
+            // Since sled invocations are only used to save / restore registers
+            // as part of prelude / cleanup in a function call we don't have to
+            // do any execution for them.
+            if !is_sled_invocation {
+                execute_instruction(&mut current_state, op, args);
+            }
+
+            // Fill in register state coming from relocations at this line. This
+            // handles references to global variables, floating point constants,
+            // etc.
+            if let Some(reloc) = reloc {
+                fill_registers_from_relocation(reloc, &mut current_state, obj, *op, args);
+            }
+
+            // Add conditional branches to execution queue
+            // Only take a given (address, register state) combination once. If
+            // the known register state is different we have to take the branch
+            // again to stabilize the known values for backwards branches.
+            if op == &powerpc::Opcode::Bc {
+                let branch_state = (index, current_state.clone());
+                if !taken_branches.contains(&branch_state) {
+                    let offset = get_branch_offset(args);
+                    let target_index = ((index as i32) + offset) as usize;
+                    execution_queue.push_back((target_index, current_state.clone()));
+                    taken_branches.insert(branch_state);
+
+                    // We should never hit this case, but avoid getting stuck in
+                    // an infinite loop if we hit some kind of bad behavior.
+                    failsafe_counter += 1;
+                    if failsafe_counter > 256 {
+                        //println!("Analysis of {} failed to stabilize", func_symbol.name);
+                        return Box::new(PPCFlowAnalysisResult::new());
+                    }
+                }
+            }
+
+            // Update index
+            if op == &powerpc::Opcode::B {
+                // Unconditional branch
+                let offset = get_branch_offset(args);
+                if offset > 0 {
+                    // Jump table or branch to over else clause.
+                    index += offset as usize;
+                } else if offset == 0 {
+                    // Function call with relocation. We'll return to
+                    // the next instruction.
+                    index += 1;
+                } else {
+                    // Unconditional branch (E.g.: loop { ... })
+                    // Also some compilations of loops put the conditional at
+                    // the end and B to it for the check of the first iteration.
+                    let branch_state = (index, current_state.clone());
+                    if taken_branches.contains(&branch_state) {
+                        break;
+                    }
+                    taken_branches.insert(branch_state);
+                    index = ((index as i32) + offset) as usize;
+                }
+            } else {
+                // Normal execution of next instruction
+                index += 1;
+            }
+        }
+
+        // Mark that we've completed at least one pass over the function, at
+        // this point we can break out if the code we're running doesn't change
+        // any register outcomes.
+        completed_first_pass = true;
+    }
+
+    // Store the relevant data flow values for simplified instructions
+    generate_flow_analysis_result(
+        obj,
+        func_address,
+        code,
+        register_state_at,
+        relocations,
+        extensions,
+    )
+}
+
+fn get_string_data(obj: &Object, symbol_index: usize, offset: Simm) -> Option<&str> {
+    if let Some(sym) = obj.symbols.get(symbol_index)
+        && sym.name.starts_with("@stringBase")
+        && offset.0 != 0
+        && let Some(data) = obj.symbol_data(symbol_index)
+    {
+        let bytes = &data[offset.0 as usize..];
+        if let Ok(Ok(str)) = CStr::from_bytes_until_nul(bytes).map(|x| x.to_str()) {
+            return Some(str);
+        }
+    }
+    None
+}
+
+// Write the relevant part of the flow analysis out into the FlowAnalysisResult
+// the rest of the application will use to query results of the flow analysis.
+// Flow analysis will compute the known contents of every register at every
+// line, but we only need to record the values of registers that are actually
+// referenced at each line.
+fn generate_flow_analysis_result(
+    obj: &Object,
+    base_address: u64,
+    code: &[u8],
+    register_state_at: Vec<RegisterState>,
+    relocations: &[Relocation],
+    extensions: Extensions,
+) -> Box<PPCFlowAnalysisResult> {
+    use powerpc::{Argument, InsIter};
+    let mut analysis_result = PPCFlowAnalysisResult::new();
+    let default_register_state = RegisterState::new();
+    for (addr, ins) in InsIter::new(code, 0, extensions) {
+        let ins_address = base_address + (addr as u64);
+        let index = addr / 4;
+        let powerpc::ParsedIns { mnemonic: _, args } = ins.simplified();
+
+        // If we're already showing relocations on a line don't also show data flow
+        let reloc = relocations.iter().find(|r| (r.address & !3) == ins_address);
+
+        // Special case to show float and double constants on the line where
+        // they are being loaded.
+        // We need to do this before we break out on showing relocations in the
+        // subsequent if statement.
+        if let (powerpc::Opcode::Lfs | powerpc::Opcode::Lfd, Some(reloc)) = (ins.op, reloc) {
+            let content = get_register_content_from_reloc(reloc, obj, ins.op);
+            if matches!(
+                content,
+                RegisterContent::FloatConstant(_) | RegisterContent::DoubleConstant(_)
+            ) {
+                analysis_result.set_argument_value_at_address(
+                    ins_address,
+                    1,
+                    FlowAnalysisValue::Text(content.to_string()),
+                );
+
+                // Don't need to show any other data flow if we're showing that
+                continue;
+            }
+        }
+
+        // Special case to show string constants on the line where they are
+        // being indexed to. This will typically be "addi t, stringbase, offset"
+        let registers = register_state_at.get(index as usize).unwrap_or(&default_register_state);
+        if let (powerpc::Opcode::Addi, Argument::GPR(rel), Argument::Simm(offset)) =
+            (ins.op, args[1], args[2])
+            && let RegisterContent::Symbol(sym_index) = registers[rel]
+            && let Some(str) = get_string_data(obj, sym_index, offset)
+        {
+            // Show the string constant in the analysis result
+            let formatted = format!("\"{str}\"");
+            analysis_result.set_argument_value_at_address(
+                ins_address,
+                2,
+                FlowAnalysisValue::Text(clamp_text_length(formatted, 20)),
+            );
+            // Don't continue, we want to show the stringbase value as well
+        }
+
+        let is_store = is_store_instruction(ins.op);
+        for (arg_index, arg) in args.into_iter().enumerate() {
+            // Hacky shorthand for determining which arguments are sources,
+            // We only want to show data flow for source registers, not target
+            // registers. Technically there are some non-"st_" operations which
+            // read from their first argument but they're rare.
+            if (arg_index == 0) && !is_store {
+                continue;
+            }
+
+            let content = match arg {
+                Argument::GPR(gpr) => Some(registers[gpr]),
+                Argument::FPR(fpr) => Some(registers[fpr]),
+                _ => None,
+            };
+            let analysis_value = match content {
+                Some(RegisterContent::Symbol(s)) => {
+                    if reloc.is_none() {
+                        // Only symbols if there isn't already a relocation, because
+                        // code other than the data flow analysis will be showing
+                        // the symbol for a relocation on the line it is for. If we
+                        // also showed it as data flow analysis value we would be
+                        // showing redundant information.
+                        obj.symbols.get(s).map(|sym| {
+                            FlowAnalysisValue::Text(clamp_text_length(
+                                sym.demangled_name.as_ref().unwrap_or(&sym.name).clone(),
+                                20,
+                            ))
+                        })
+                    } else {
+                        None
+                    }
+                }
+                Some(RegisterContent::InputRegister(reg)) => {
+                    let reg_name = match arg {
+                        Argument::GPR(_) => format!("in_r{reg}"),
+                        Argument::FPR(_) => format!("in_f{reg}"),
+                        _ => panic!("Register content should only be in a register"),
+                    };
+                    Some(FlowAnalysisValue::Text(reg_name))
+                }
+                Some(RegisterContent::Unknown) | Some(RegisterContent::Variable) => None,
+                Some(value) => Some(FlowAnalysisValue::Text(value.to_string())),
+                None => None,
+            };
+            if let Some(analysis_value) = analysis_value {
+                analysis_result.set_argument_value_at_address(
+                    ins_address,
+                    arg_index as u8,
+                    analysis_value,
+                );
+            }
+        }
+    }
+
+    Box::new(analysis_result)
+}

objdiff-core/src/arch/superh/mod.rs

@@ -0,0 +1,810 @@
+use alloc::{collections::BTreeMap, format, string::String, vec, vec::Vec};
+
+use anyhow::Result;
+use object::elf;
+
+use crate::{
+    arch::{Arch, superh::disasm::sh2_disasm},
+    diff::{DiffObjConfig, display::InstructionPart},
+    obj::{InstructionRef, Relocation, RelocationFlags, ResolvedInstructionRef},
+};
+
+pub mod disasm;
+
+#[derive(Debug)]
+pub struct ArchSuperH {}
+
+impl ArchSuperH {
+    pub fn new(_file: &object::File) -> Result<Self> { Ok(Self {}) }
+}
+
+struct DataInfo {
+    address: u64,
+    size: u32,
+}
+
+impl Arch for ArchSuperH {
+    fn scan_instructions_internal(
+        &self,
+        address: u64,
+        code: &[u8],
+        _section_index: usize,
+        _relocations: &[Relocation],
+        _diff_config: &DiffObjConfig,
+    ) -> Result<Vec<InstructionRef>> {
+        let mut ops = Vec::<InstructionRef>::with_capacity(code.len() / 2);
+        let mut offset = address;
+
+        for chunk in code.chunks_exact(2) {
+            let opcode = u16::from_be_bytes(chunk.try_into().unwrap());
+            let mut parts: Vec<InstructionPart> = vec![];
+            let resolved: ResolvedInstructionRef = Default::default();
+            let mut branch_dest: Option<u64> = None;
+            sh2_disasm(
+                offset.try_into().unwrap(),
+                opcode,
+                true,
+                &mut parts,
+                &resolved,
+                &mut branch_dest,
+            );
+
+            let opcode_enum: u16 = match parts.first() {
+                Some(InstructionPart::Opcode(_, val)) => *val,
+                _ => 0,
+            };
+            ops.push(InstructionRef { address: offset, size: 2, opcode: opcode_enum, branch_dest });
+            offset += 2;
+        }
+
+        Ok(ops)
+    }
+
+    fn display_instruction(
+        &self,
+        resolved: ResolvedInstructionRef,
+        _diff_config: &DiffObjConfig,
+        cb: &mut dyn FnMut(InstructionPart) -> Result<()>,
+    ) -> Result<()> {
+        let opcode = u16::from_be_bytes(resolved.code.try_into().unwrap());
+        let mut parts: Vec<InstructionPart> = vec![];
+        let mut branch_dest: Option<u64> = None;
+
+        sh2_disasm(0, opcode, true, &mut parts, &resolved, &mut branch_dest);
+
+        if let Some(symbol_data) =
+            resolved.section.data_range(resolved.symbol.address, resolved.symbol.size as usize)
+        {
+            // scan for data
+            // map of instruction offsets to data target offsets
+            let mut data_offsets = BTreeMap::<u64, DataInfo>::new();
+
+            let mut pos: u64 = 0;
+            for chunk in symbol_data.chunks_exact(2) {
+                let opcode = u16::from_be_bytes(chunk.try_into().unwrap());
+                // mov.w
+                if (opcode & 0xf000) == 0x9000 {
+                    let target = (opcode as u64 & 0xff) * 2 + 4 + pos;
+                    let data_info = DataInfo { address: target, size: 2 };
+                    data_offsets.insert(pos, data_info);
+                }
+                // mov.l
+                else if (opcode & 0xf000) == 0xd000 {
+                    let target = ((opcode as u64 & 0xff) * 4 + 4 + pos) & 0xfffffffc;
+                    let data_info = DataInfo { address: target, size: 4 };
+                    data_offsets.insert(pos, data_info);
+                }
+                pos += 2;
+            }
+
+            let pos = resolved.ins_ref.address - resolved.symbol.address;
+
+            // add the data info
+            if let Some(value) = data_offsets.get(&pos) {
+                if value.size == 2 && value.address as usize + 1 < symbol_data.len() {
+                    let data = u16::from_be_bytes(
+                        symbol_data[value.address as usize..value.address as usize + 2]
+                            .try_into()
+                            .unwrap(),
+                    );
+                    parts.push(InstructionPart::basic(" /* "));
+                    parts.push(InstructionPart::basic("0x"));
+                    parts.push(InstructionPart::basic(format!("{data:04X}")));
+                    parts.push(InstructionPart::basic(" */"));
+                } else if value.size == 4 && value.address as usize + 3 < symbol_data.len() {
+                    let data = u32::from_be_bytes(
+                        symbol_data[value.address as usize..value.address as usize + 4]
+                            .try_into()
+                            .unwrap(),
+                    );
+                    parts.push(InstructionPart::basic(" /* "));
+                    parts.push(InstructionPart::basic("0x"));
+                    parts.push(InstructionPart::basic(format!("{data:08X}")));
+                    parts.push(InstructionPart::basic(" */"));
+                }
+            }
+        }
+
+        for part in parts {
+            cb(part)?;
+        }
+
+        Ok(())
+    }
+
+    fn demangle(&self, name: &str) -> Option<String> {
+        cpp_demangle::Symbol::new(name)
+            .ok()
+            .and_then(|s| s.demangle(&cpp_demangle::DemangleOptions::default()).ok())
+    }
+
+    fn reloc_name(&self, flags: RelocationFlags) -> Option<&'static str> {
+        match flags {
+            RelocationFlags::Elf(r_type) => match r_type {
+                elf::R_SH_NONE => Some("R_SH_NONE"),
+                elf::R_SH_DIR32 => Some("R_SH_DIR32"),
+                elf::R_SH_REL32 => Some("R_SH_REL32"),
+                elf::R_SH_DIR8WPN => Some("R_SH_DIR8WPN"),
+                elf::R_SH_IND12W => Some("R_SH_IND12W"),
+                elf::R_SH_DIR8WPL => Some("R_SH_DIR8WPL"),
+                elf::R_SH_DIR8WPZ => Some("R_SH_DIR8WPZ"),
+                elf::R_SH_DIR8BP => Some("R_SH_DIR8BP"),
+                elf::R_SH_DIR8W => Some("R_SH_DIR8W"),
+                elf::R_SH_DIR8L => Some("R_SH_DIR8L"),
+                elf::R_SH_SWITCH16 => Some("R_SH_SWITCH16"),
+                elf::R_SH_SWITCH32 => Some("R_SH_SWITCH32"),
+                elf::R_SH_USES => Some("R_SH_USES"),
+                elf::R_SH_COUNT => Some("R_SH_COUNT"),
+                elf::R_SH_ALIGN => Some("R_SH_ALIGN"),
+                elf::R_SH_CODE => Some("R_SH_CODE"),
+                elf::R_SH_DATA => Some("R_SH_DATA"),
+                elf::R_SH_LABEL => Some("R_SH_LABEL"),
+                elf::R_SH_SWITCH8 => Some("R_SH_SWITCH8"),
+                elf::R_SH_GNU_VTINHERIT => Some("R_SH_GNU_VTINHERIT"),
+                elf::R_SH_GNU_VTENTRY => Some("R_SH_GNU_VTENTRY"),
+                elf::R_SH_TLS_GD_32 => Some("R_SH_TLS_GD_32"),
+                elf::R_SH_TLS_LD_32 => Some("R_SH_TLS_LD_32"),
+                elf::R_SH_TLS_LDO_32 => Some("R_SH_TLS_LDO_32"),
+                elf::R_SH_TLS_IE_32 => Some("R_SH_TLS_IE_32"),
+                elf::R_SH_TLS_LE_32 => Some("R_SH_TLS_LE_32"),
+                elf::R_SH_TLS_DTPMOD32 => Some("R_SH_TLS_DTPMOD32"),
+                elf::R_SH_TLS_DTPOFF32 => Some("R_SH_TLS_DTPOFF32"),
+                elf::R_SH_TLS_TPOFF32 => Some("R_SH_TLS_TPOFF32"),
+                elf::R_SH_GOT32 => Some("R_SH_GOT32"),
+                elf::R_SH_PLT32 => Some("R_SH_PLT32"),
+                elf::R_SH_COPY => Some("R_SH_COPY"),
+                elf::R_SH_GLOB_DAT => Some("R_SH_GLOB_DAT"),
+                elf::R_SH_JMP_SLOT => Some("R_SH_JMP_SLOT"),
+                elf::R_SH_RELATIVE => Some("R_SH_RELATIVE"),
+                elf::R_SH_GOTOFF => Some("R_SH_GOTOFF"),
+                elf::R_SH_GOTPC => Some("R_SH_GOTPC"),
+                _ => None,
+            },
+            _ => None,
+        }
+    }
+
+    fn data_reloc_size(&self, flags: RelocationFlags) -> usize {
+        match flags {
+            RelocationFlags::Elf(elf::R_SH_DIR32) => 4,
+            RelocationFlags::Elf(_) => 1,
+            _ => 1,
+        }
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use std::fmt::{self, Display};
+
+    use super::*;
+    use crate::obj::{InstructionArg, Section, SectionData, Symbol};
+
+    impl Display for InstructionPart<'_> {
+        fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+            match self {
+                InstructionPart::Basic(s) => f.write_str(s),
+                InstructionPart::Opcode(s, _o) => write!(f, "{s} "),
+                InstructionPart::Arg(arg) => write!(f, "{arg}"),
+                InstructionPart::Separator => f.write_str(", "),
+            }
+        }
+    }
+
+    impl Display for InstructionArg<'_> {
+        fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+            match self {
+                InstructionArg::Value(v) => write!(f, "{v}"),
+                InstructionArg::BranchDest(v) => write!(f, "{v}"),
+                InstructionArg::Reloc => f.write_str("reloc"),
+            }
+        }
+    }
+
+    #[test]
+    fn test_sh2_display_instruction_basic_ops() {
+        let arch = ArchSuperH {};
+        let ops: [(u16, &str); 8] = [
+            (0x0008, "clrt "),
+            (0x0028, "clrmac "),
+            (0x0019, "div0u "),
+            (0x0009, "nop "),
+            (0x002b, "rte "),
+            (0x000b, "rts "),
+            (0x0018, "sett "),
+            (0x001b, "sleep "),
+        ];
+
+        for (opcode, expected_str) in ops {
+            let code = opcode.to_be_bytes();
+            let mut parts = Vec::new();
+
+            arch.display_instruction(
+                ResolvedInstructionRef {
+                    ins_ref: InstructionRef { address: 0x1000, size: 2, opcode, branch_dest: None },
+                    code: &code,
+                    ..Default::default()
+                },
+                &DiffObjConfig::default(),
+                &mut |part| {
+                    parts.push(part.into_static());
+                    Ok(())
+                },
+            )
+            .unwrap();
+
+            let joined_str: String = parts.iter().map(<_>::to_string).collect();
+            assert_eq!(joined_str, expected_str.to_string());
+        }
+    }
+
+    #[test]
+    fn test_sh2_display_instruction_f0ff_ops() {
+        let arch = ArchSuperH {};
+        let ops: [(u16, &str); 49] = [
+            (0x4015, "cmp/pl r0"),
+            (0x4115, "cmp/pl r1"),
+            (0x4215, "cmp/pl r2"),
+            (0x4315, "cmp/pl r3"),
+            (0x4011, "cmp/pz r0"),
+            (0x4010, "dt r0"),
+            (0x0029, "movt r0"),
+            (0x4004, "rotl r0"),
+            (0x4005, "rotr r0"),
+            (0x4024, "rotcl r0"),
+            (0x4025, "rotcr r0"),
+            (0x4020, "shal r0"),
+            (0x4021, "shar r0"),
+            (0x4000, "shll r0"),
+            (0x4001, "shlr r0"),
+            (0x4008, "shll2 r0"),
+            (0x4009, "shlr2 r0"),
+            (0x4018, "shll8 r0"),
+            (0x4019, "shlr8 r0"),
+            (0x4028, "shll16 r0"),
+            (0x4029, "shlr16 r0"),
+            (0x0002, "stc sr, r0"),
+            (0x0012, "stc gbr, r0"),
+            (0x0022, "stc vbr, r0"),
+            (0x000a, "sts mach, r0"),
+            (0x001a, "sts macl, r0"),
+            (0x402a, "lds r0, pr"),
+            (0x401b, "tas.b r0"),
+            (0x4003, "stc.l sr, @-r0"),
+            (0x4013, "stc.l gbr, @-r0"),
+            (0x4023, "stc.l vbr, @-r0"),
+            (0x4002, "sts.l mach, @-r0"),
+            (0x4012, "sts.l macl, @-r0"),
+            (0x4022, "sts.l pr, @-r0"),
+            (0x400e, "ldc r0, sr"),
+            (0x401e, "ldc r0, gbr"),
+            (0x402e, "ldc r0, vbr"),
+            (0x400a, "lds r0, mach"),
+            (0x401a, "lds r0, macl"),
+            (0x402b, "jmp @r0"),
+            (0x400b, "jsr @r0"),
+            (0x4007, "ldc.l @r0+, sr"),
+            (0x4017, "ldc.l @r0+, gbr"),
+            (0x4027, "ldc.l @r0+, vbr"),
+            (0x4006, "lds.l @r0+, mach"),
+            (0x4016, "lds.l @r0+, macl"),
+            (0x4026, "lds.l @r0+, pr"),
+            (0x0023, "braf r0"),
+            (0x0003, "bsrf r0"),
+        ];
+
+        for (opcode, expected_str) in ops {
+            let code = opcode.to_be_bytes();
+            let mut parts = Vec::new();
+
+            arch.display_instruction(
+                ResolvedInstructionRef {
+                    ins_ref: InstructionRef { address: 0x1000, size: 2, opcode, branch_dest: None },
+                    code: &code,
+                    ..Default::default()
+                },
+                &DiffObjConfig::default(),
+                &mut |part| {
+                    parts.push(part.into_static());
+                    Ok(())
+                },
+            )
+            .unwrap();
+
+            let joined_str: String = parts.iter().map(<_>::to_string).collect();
+            assert_eq!(joined_str, expected_str.to_string());
+        }
+    }
+
+    #[test]
+    fn test_sh2_display_instructions_f00f() {
+        let arch = ArchSuperH {};
+        let ops: [(u16, &str); 54] = [
+            (0x300c, "add r0, r0"),
+            (0x300e, "addc r0, r0"),
+            (0x300f, "addv r0, r0"),
+            (0x2009, "and r0, r0"),
+            (0x3000, "cmp/eq r0, r0"),
+            (0x3002, "cmp/hs r0, r0"),
+            (0x3003, "cmp/ge r0, r0"),
+            (0x3006, "cmp/hi r0, r0"),
+            (0x3007, "cmp/gt r0, r0"),
+            (0x200c, "cmp/str r0, r0"),
+            (0x3004, "div1 r0, r0"),
+            (0x2007, "div0s r0, r0"),
+            (0x300d, "dmuls.l r0, r0"),
+            (0x3005, "dmulu.l r0, r0"),
+            (0x600e, "exts.b r0, r0"),
+            (0x600f, "exts.w r0, r0"),
+            (0x600c, "extu.b r0, r0"),
+            (0x600d, "extu.w r0, r0"),
+            (0x6003, "mov r0, r0"),
+            (0x0007, "mul.l r0, r0"),
+            (0x200f, "muls r0, r0"),
+            (0x200e, "mulu r0, r0"),
+            (0x600b, "neg r0, r0"),
+            (0x600a, "negc r0, r0"),
+            (0x6007, "not r0, r0"),
+            (0x200b, "or r0, r0"),
+            (0x3008, "sub r0, r0"),
+            (0x300a, "subc r0, r0"),
+            (0x300b, "subv r0, r0"),
+            (0x6008, "swap.b r0, r0"),
+            (0x6009, "swap.w r0, r0"),
+            (0x2008, "tst r0, r0"),
+            (0x200a, "xor r0, r0"),
+            (0x200d, "xtrct r0, r0"),
+            (0x2000, "mov.b r0, @r0"),
+            (0x2001, "mov.w r0, @r0"),
+            (0x2002, "mov.l r0, @r0"),
+            (0x6000, "mov.b @r0, r0"),
+            (0x6001, "mov.w @r0, r0"),
+            (0x6002, "mov.l @r0, r0"),
+            (0x000f, "mac.l @r0+, @r0+"),
+            (0x400f, "mac.w @r0+, @r0+"),
+            (0x6004, "mov.b @r0+, r0"),
+            (0x6005, "mov.w @r0+, r0"),
+            (0x6006, "mov.l @r0+, r0"),
+            (0x2004, "mov.b r0, @-r0"),
+            (0x2005, "mov.w r0, @-r0"),
+            (0x2006, "mov.l r0, @-r0"),
+            (0x0004, "mov.b r0, @(r0, r0)"),
+            (0x0005, "mov.w r0, @(r0, r0)"),
+            (0x0006, "mov.l r0, @(r0, r0)"),
+            (0x000c, "mov.b @(r0, r0), r0"),
+            (0x000d, "mov.w @(r0, r0), r0"),
+            (0x000e, "mov.l @(r0, r0), r0"),
+        ];
+
+        for (opcode, expected_str) in ops {
+            let code = opcode.to_be_bytes();
+            let mut parts = Vec::new();
+
+            arch.display_instruction(
+                ResolvedInstructionRef {
+                    ins_ref: InstructionRef { address: 0x1000, size: 2, opcode, branch_dest: None },
+                    code: &code,
+                    ..Default::default()
+                },
+                &DiffObjConfig::default(),
+                &mut |part| {
+                    parts.push(part.into_static());
+                    Ok(())
+                },
+            )
+            .unwrap();
+
+            let joined_str: String = parts.iter().map(<_>::to_string).collect();
+            assert_eq!(joined_str, expected_str.to_string());
+        }
+    }
+
+    #[test]
+    fn test_sh2_display_instruction_mov_immediate_offset() {
+        let arch = ArchSuperH {};
+        let ops: [(u16, &str); 8] = [
+            (0x8000, "mov.b r0, @(0x0, r0)"),
+            (0x8011, "mov.b r0, @(0x1, r1)"),
+            (0x8102, "mov.w r0, @(0x4, r0)"),
+            (0x8113, "mov.w r0, @(0x6, r1)"),
+            (0x8404, "mov.b @(0x4, r0), r0"),
+            (0x8415, "mov.b @(0x5, r1), r0"),
+            (0x8506, "mov.w @(0xc, r0), r0"),
+            (0x8517, "mov.w @(0xe, r1), r0"),
+        ];
+
+        for (opcode, expected_str) in ops {
+            let code = opcode.to_be_bytes();
+            let mut parts = Vec::new();
+
+            arch.display_instruction(
+                ResolvedInstructionRef {
+                    ins_ref: InstructionRef { address: 0x1000, size: 2, opcode, branch_dest: None },
+                    code: &code,
+                    ..Default::default()
+                },
+                &DiffObjConfig::default(),
+                &mut |part| {
+                    parts.push(part.into_static());
+                    Ok(())
+                },
+            )
+            .unwrap();
+
+            let joined_str: String = parts.iter().map(<_>::to_string).collect();
+            assert_eq!(joined_str, expected_str.to_string());
+        }
+    }
+
+    #[test]
+    fn test_sh2_display_instruction_gbr_and_branches() {
+        let arch = ArchSuperH {};
+        let ops: &[(u16, u32, &str)] = &[
+            (0xc000, 0x0000, "mov.b r0, @(0x0, gbr)"),
+            (0xc07f, 0x0000, "mov.b r0, @(0x7f, gbr)"),
+            (0xc100, 0x0000, "mov.w r0, @(0x0, gbr)"),
+            (0xc17f, 0x0000, "mov.w r0, @(0xfe, gbr)"),
+            (0xc200, 0x0000, "mov.l r0, @(0x0, gbr)"),
+            (0xc27f, 0x0000, "mov.l r0, @(0x1fc, gbr)"),
+            (0xc400, 0x0000, "mov.b @(0x0, gbr), r0"),
+            (0xc47f, 0x0000, "mov.b @(0x7f, gbr), r0"),
+            (0xc500, 0x0000, "mov.w @(0x0, gbr), r0"),
+            (0xc57f, 0x0000, "mov.w @(0xfe, gbr), r0"),
+            (0xc600, 0x0000, "mov.l @(0x0, gbr), r0"),
+            (0xc67f, 0x0000, "mov.l @(0x1fc, gbr), r0"),
+            (0x8b20, 0x1000, "bf 0x44"),
+            (0x8b80, 0x1000, "bf 0xffffff04"),
+            (0x8f10, 0x2000, "bf.s 0x24"),
+            (0x8f90, 0x2000, "bf.s 0xffffff24"),
+            (0x8904, 0x3000, "bt 0xc"),
+            (0x8980, 0x3000, "bt 0xffffff04"),
+            (0x8d04, 0x4000, "bt.s 0xc"),
+            (0x8d80, 0x4000, "bt.s 0xffffff04"),
+        ];
+
+        for &(opcode, addr, expected_str) in ops {
+            let code = opcode.to_be_bytes();
+            let mut parts = Vec::new();
+
+            arch.display_instruction(
+                ResolvedInstructionRef {
+                    ins_ref: InstructionRef {
+                        address: addr as u64,
+                        size: 2,
+                        opcode,
+                        branch_dest: None,
+                    },
+                    code: &code,
+                    ..Default::default()
+                },
+                &DiffObjConfig::default(),
+                &mut |part| {
+                    parts.push(part.into_static());
+                    Ok(())
+                },
+            )
+            .unwrap();
+
+            let joined_str: String = parts.iter().map(<_>::to_string).collect();
+            assert_eq!(joined_str, expected_str.to_string());
+        }
+    }
+
+    #[test]
+    fn test_sh2_display_instruction_mov_l() {
+        let arch = ArchSuperH {};
+        let ops: &[(u16, u32, &str)] = &[
+            // mov.l rX, @(0xXXX, rY)
+            (0x1000, 0x0000, "mov.l r0, @(0x0, r0)"),
+            (0x1001, 0x0000, "mov.l r0, @(0x4, r0)"),
+            (0x100f, 0x0000, "mov.l r0, @(0x3c, r0)"),
+            (0x101f, 0x0000, "mov.l r1, @(0x3c, r0)"),
+            // mov.l @(0xXXX, rY), rX
+            (0x5000, 0x0000, "mov.l @(0x0, r0), r0"),
+        ];
+
+        for &(opcode, addr, expected_str) in ops {
+            let code = opcode.to_be_bytes();
+            let mut parts = Vec::new();
+
+            arch.display_instruction(
+                ResolvedInstructionRef {
+                    ins_ref: InstructionRef {
+                        address: addr as u64,
+                        size: 2,
+                        opcode,
+                        branch_dest: None,
+                    },
+                    code: &code,
+                    ..Default::default()
+                },
+                &DiffObjConfig::default(),
+                &mut |part| {
+                    parts.push(part.into_static());
+                    Ok(())
+                },
+            )
+            .unwrap();
+
+            let joined_str: String = parts.iter().map(<_>::to_string).collect();
+            assert_eq!(joined_str, expected_str.to_string());
+        }
+    }
+
+    #[test]
+    fn test_sh2_display_instruction_bra_bsr() {
+        let arch: ArchSuperH = ArchSuperH {};
+        let ops: &[(u16, u32, &str)] = &[
+            // bra
+            (0xa000, 0x0000, "bra 0x4"),
+            (0xa001, 0x0000, "bra 0x6"),
+            (0xa800, 0x0000, "bra 0xfffff004"),
+            (0xa801, 0x0000, "bra 0xfffff006"),
+            // bsr
+            (0xb000, 0x0000, "bsr 0x4"),
+            (0xb001, 0x0000, "bsr 0x6"),
+            (0xb800, 0x0000, "bsr 0xfffff004"),
+            (0xb801, 0x0000, "bsr 0xfffff006"),
+        ];
+
+        for &(opcode, addr, expected_str) in ops {
+            let code = opcode.to_be_bytes();
+            let mut parts = Vec::new();
+
+            arch.display_instruction(
+                ResolvedInstructionRef {
+                    ins_ref: InstructionRef {
+                        address: addr as u64,
+                        size: 2,
+                        opcode,
+                        branch_dest: None,
+                    },
+                    code: &code,
+                    ..Default::default()
+                },
+                &DiffObjConfig::default(),
+                &mut |part| {
+                    parts.push(part.into_static());
+                    Ok(())
+                },
+            )
+            .unwrap();
+
+            let joined_str: String = parts.iter().map(<_>::to_string).collect();
+            assert_eq!(joined_str, expected_str.to_string());
+        }
+    }
+
+    #[test]
+    fn test_sh2_display_instruction_operations() {
+        let arch = ArchSuperH {};
+        let ops: &[(u16, u32, &str)] = &[
+            (0xcdff, 0x0000, "and.b #0xff, @(r0, gbr)"),
+            (0xcfff, 0x0000, "or.b #0xff, @(r0, gbr)"),
+            (0xccff, 0x0000, "tst.b #0xff, @(r0, gbr)"),
+            (0xceff, 0x0000, "xor.b #0xff, @(r0, gbr)"),
+            (0xc9ff, 0x0000, "and #0xff, r0"),
+            (0x88ff, 0x0000, "cmp/eq #0xff, r0"),
+            (0xcbff, 0x0000, "or #0xff, r0"),
+            (0xc8ff, 0x0000, "tst #0xff, r0"),
+            (0xcaff, 0x0000, "xor #0xff, r0"),
+            (0xc3ff, 0x0000, "trapa #0xff"),
+        ];
+
+        for &(opcode, addr, expected_str) in ops {
+            let code = opcode.to_be_bytes();
+            let mut parts = Vec::new();
+
+            arch.display_instruction(
+                ResolvedInstructionRef {
+                    ins_ref: InstructionRef {
+                        address: addr as u64,
+                        size: 2,
+                        opcode,
+                        branch_dest: None,
+                    },
+                    code: &code,
+                    ..Default::default()
+                },
+                &DiffObjConfig::default(),
+                &mut |part| {
+                    parts.push(part.into_static());
+                    Ok(())
+                },
+            )
+            .unwrap();
+
+            let joined_str: String = parts.iter().map(<_>::to_string).collect();
+            assert_eq!(joined_str, expected_str.to_string());
+        }
+    }
+
+    #[test]
+    fn test_sh2_add_mov_unknown_instructions() {
+        let arch = ArchSuperH {};
+        let ops: &[(u16, u32, &str)] = &[
+            (0x70FF, 0x0000, "add #0xff, r0"),
+            (0xE0FF, 0x0000, "mov #0xff, r0"),
+            (0x0000, 0x0000, ".word 0x0000 /* unknown instruction */"),
+        ];
+
+        for &(opcode, addr, expected_str) in ops {
+            let code = opcode.to_be_bytes();
+            let mut parts = Vec::new();
+
+            arch.display_instruction(
+                ResolvedInstructionRef {
+                    ins_ref: InstructionRef {
+                        address: addr as u64,
+                        size: 2,
+                        opcode,
+                        branch_dest: None,
+                    },
+                    code: &code,
+                    ..Default::default()
+                },
+                &DiffObjConfig::default(),
+                &mut |part| {
+                    parts.push(part.into_static());
+                    Ok(())
+                },
+            )
+            .unwrap();
+
+            let joined_str: String = parts.iter().map(<_>::to_string).collect();
+            assert_eq!(joined_str, expected_str.to_string());
+        }
+    }
+
+    #[test]
+    fn test_sh2_mov_instructions_with_labels() {
+        let arch = ArchSuperH {};
+        let ops: &[(u16, u32, &str)] =
+            &[(0x9000, 0x0000, "mov.w @(0x4, pc), r0"), (0xd000, 0x0000, "mov.l @(0x4, pc), r0")];
+
+        for &(opcode, addr, expected_str) in ops {
+            let code = opcode.to_be_bytes();
+            let mut parts = Vec::new();
+
+            arch.display_instruction(
+                ResolvedInstructionRef {
+                    ins_ref: InstructionRef {
+                        address: addr as u64,
+                        size: 2,
+                        opcode,
+                        branch_dest: None,
+                    },
+                    code: &code,
+                    ..Default::default()
+                },
+                &DiffObjConfig::default(),
+                &mut |part| {
+                    parts.push(part.into_static());
+                    Ok(())
+                },
+            )
+            .unwrap();
+
+            let joined_str: String = parts.iter().map(<_>::to_string).collect();
+            assert_eq!(joined_str, expected_str.to_string());
+        }
+    }
+
+    #[test]
+    fn test_func_0606_f378_mov_w_data_labeling() {
+        let arch = ArchSuperH {};
+        let ops: &[(u16, u32, &str)] = &[(0x9000, 0x0606F378, "mov.w @(0x4, pc), r0 /* 0x00B0 */")];
+
+        let mut code = Vec::new();
+        code.extend_from_slice(&0x9000_u16.to_be_bytes());
+        code.extend_from_slice(&0x0009_u16.to_be_bytes());
+        code.extend_from_slice(&0x00B0_u16.to_be_bytes());
+
+        for &(opcode, addr, expected_str) in ops {
+            let mut parts = Vec::new();
+
+            arch.display_instruction(
+                ResolvedInstructionRef {
+                    ins_ref: InstructionRef {
+                        address: addr as u64,
+                        size: 2,
+                        opcode,
+                        branch_dest: None,
+                    },
+                    code: &opcode.to_be_bytes(),
+                    symbol: &Symbol {
+                        address: 0x0606F378, // func base address
+                        size: code.len() as u64,
+                        ..Default::default()
+                    },
+                    section: &Section {
+                        address: 0x0606F378,
+                        size: code.len() as u64,
+                        data: SectionData(code.clone()),
+                        ..Default::default()
+                    },
+                    ..Default::default()
+                },
+                &DiffObjConfig::default(),
+                &mut |part| {
+                    parts.push(part.into_static());
+                    Ok(())
+                },
+            )
+            .unwrap();
+
+            let joined_str: String = parts.iter().map(<_>::to_string).collect();
+            assert_eq!(joined_str, expected_str.to_string());
+        }
+    }
+
+    #[test]
+    fn test_func_0606_f378_mov_l_data_labeling() {
+        let arch = ArchSuperH {};
+        let ops: &[(u16, u32, &str)] =
+            &[(0xd000, 0x0606F378, "mov.l @(0x4, pc), r0 /* 0x00B000B0 */")];
+
+        let mut code = Vec::new();
+        code.extend_from_slice(&0xd000_u16.to_be_bytes());
+        code.extend_from_slice(&0x0009_u16.to_be_bytes());
+        code.extend_from_slice(&0x00B0_u16.to_be_bytes());
+        code.extend_from_slice(&0x00B0_u16.to_be_bytes());
+
+        for &(opcode, addr, expected_str) in ops {
+            let mut parts = Vec::new();
+
+            arch.display_instruction(
+                ResolvedInstructionRef {
+                    ins_ref: InstructionRef {
+                        address: addr as u64,
+                        size: 2,
+                        opcode,
+                        branch_dest: None,
+                    },
+                    code: &opcode.to_be_bytes(),
+                    symbol: &Symbol {
+                        address: 0x0606F378, // func base address
+                        size: code.len() as u64,
+                        ..Default::default()
+                    },
+                    section: &Section {
+                        address: 0x0606F378,
+                        size: code.len() as u64,
+                        data: SectionData(code.clone()),
+                        ..Default::default()
+                    },
+                    ..Default::default()
+                },
+                &DiffObjConfig::default(),
+                &mut |part| {
+                    parts.push(part.into_static());
+                    Ok(())
+                },
+            )
+            .unwrap();
+
+            let joined_str: String = parts.iter().map(<_>::to_string).collect();
+            assert_eq!(joined_str, expected_str.to_string());
+        }
+    }
+}

objdiff-core/src/bindings/diff.rs

@@ -1,257 +0,0 @@
-#![allow(clippy::needless_lifetimes)] // Generated serde code
-use crate::{
-    diff::{
-        ObjDataDiff, ObjDataDiffKind, ObjDiff, ObjInsArgDiff, ObjInsBranchFrom, ObjInsBranchTo,
-        ObjInsDiff, ObjInsDiffKind, ObjSectionDiff, ObjSymbolDiff,
-    },
-    obj,
-    obj::{
-        ObjInfo, ObjIns, ObjInsArg, ObjInsArgValue, ObjReloc, ObjSectionKind, ObjSymbol,
-        ObjSymbolFlagSet, ObjSymbolFlags,
-    },
-};
-
-// Protobuf diff types
-include!(concat!(env!("OUT_DIR"), "/objdiff.diff.rs"));
-include!(concat!(env!("OUT_DIR"), "/objdiff.diff.serde.rs"));
-
-impl DiffResult {
-    pub fn new(left: Option<(&ObjInfo, &ObjDiff)>, right: Option<(&ObjInfo, &ObjDiff)>) -> Self {
-        Self {
-            left: left.map(|(obj, diff)| ObjectDiff::new(obj, diff)),
-            right: right.map(|(obj, diff)| ObjectDiff::new(obj, diff)),
-        }
-    }
-}
-
-impl ObjectDiff {
-    pub fn new(obj: &ObjInfo, diff: &ObjDiff) -> Self {
-        Self {
-            sections: diff
-                .sections
-                .iter()
-                .enumerate()
-                .map(|(i, d)| SectionDiff::new(obj, i, d))
-                .collect(),
-        }
-    }
-}
-
-impl SectionDiff {
-    pub fn new(obj: &ObjInfo, section_index: usize, section_diff: &ObjSectionDiff) -> Self {
-        let section = &obj.sections[section_index];
-        let symbols = section_diff.symbols.iter().map(|d| SymbolDiff::new(obj, d)).collect();
-        let data = section_diff.data_diff.iter().map(|d| DataDiff::new(obj, d)).collect();
-        // TODO: section_diff.reloc_diff
-        Self {
-            name: section.name.to_string(),
-            kind: SectionKind::from(section.kind) as i32,
-            size: section.size,
-            address: section.address,
-            symbols,
-            data,
-            match_percent: section_diff.match_percent,
-        }
-    }
-}
-
-impl From<ObjSectionKind> for SectionKind {
-    fn from(value: ObjSectionKind) -> Self {
-        match value {
-            ObjSectionKind::Code => SectionKind::SectionText,
-            ObjSectionKind::Data => SectionKind::SectionData,
-            ObjSectionKind::Bss => SectionKind::SectionBss,
-            // TODO common
-        }
-    }
-}
-
-impl From<obj::SymbolRef> for SymbolRef {
-    fn from(value: obj::SymbolRef) -> Self {
-        Self {
-            section_index: if value.section_idx == obj::SECTION_COMMON {
-                None
-            } else {
-                Some(value.section_idx as u32)
-            },
-            symbol_index: value.symbol_idx as u32,
-        }
-    }
-}
-
-impl SymbolDiff {
-    pub fn new(object: &ObjInfo, symbol_diff: &ObjSymbolDiff) -> Self {
-        let (_section, symbol) = object.section_symbol(symbol_diff.symbol_ref);
-        let instructions = symbol_diff
-            .instructions
-            .iter()
-            .map(|ins_diff| InstructionDiff::new(object, ins_diff))
-            .collect();
-        Self {
-            symbol: Some(Symbol::new(symbol)),
-            instructions,
-            match_percent: symbol_diff.match_percent,
-            target: symbol_diff.target_symbol.map(SymbolRef::from),
-        }
-    }
-}
-
-impl DataDiff {
-    pub fn new(_object: &ObjInfo, data_diff: &ObjDataDiff) -> Self {
-        Self {
-            kind: DiffKind::from(data_diff.kind) as i32,
-            data: data_diff.data.clone(),
-            size: data_diff.len as u64,
-        }
-    }
-}
-
-impl Symbol {
-    pub fn new(value: &ObjSymbol) -> Self {
-        Self {
-            name: value.name.to_string(),
-            demangled_name: value.demangled_name.clone(),
-            address: value.address,
-            size: value.size,
-            flags: symbol_flags(value.flags),
-        }
-    }
-}
-
-fn symbol_flags(value: ObjSymbolFlagSet) -> u32 {
-    let mut flags = 0u32;
-    if value.0.contains(ObjSymbolFlags::Global) {
-        flags |= SymbolFlag::SymbolGlobal as u32;
-    }
-    if value.0.contains(ObjSymbolFlags::Local) {
-        flags |= SymbolFlag::SymbolLocal as u32;
-    }
-    if value.0.contains(ObjSymbolFlags::Weak) {
-        flags |= SymbolFlag::SymbolWeak as u32;
-    }
-    if value.0.contains(ObjSymbolFlags::Common) {
-        flags |= SymbolFlag::SymbolCommon as u32;
-    }
-    if value.0.contains(ObjSymbolFlags::Hidden) {
-        flags |= SymbolFlag::SymbolHidden as u32;
-    }
-    flags
-}
-
-impl Instruction {
-    pub fn new(object: &ObjInfo, instruction: &ObjIns) -> Self {
-        Self {
-            address: instruction.address,
-            size: instruction.size as u32,
-            opcode: instruction.op as u32,
-            mnemonic: instruction.mnemonic.to_string(),
-            formatted: instruction.formatted.clone(),
-            arguments: instruction.args.iter().map(Argument::new).collect(),
-            relocation: instruction.reloc.as_ref().map(|reloc| Relocation::new(object, reloc)),
-            branch_dest: instruction.branch_dest,
-            line_number: instruction.line,
-            original: instruction.orig.clone(),
-        }
-    }
-}
-
-impl Argument {
-    pub fn new(value: &ObjInsArg) -> Self {
-        Self {
-            value: Some(match value {
-                ObjInsArg::PlainText(s) => argument::Value::PlainText(s.to_string()),
-                ObjInsArg::Arg(v) => argument::Value::Argument(ArgumentValue::new(v)),
-                ObjInsArg::Reloc => argument::Value::Relocation(ArgumentRelocation {}),
-                ObjInsArg::BranchDest(dest) => argument::Value::BranchDest(*dest),
-            }),
-        }
-    }
-}
-
-impl ArgumentValue {
-    pub fn new(value: &ObjInsArgValue) -> Self {
-        Self {
-            value: Some(match value {
-                ObjInsArgValue::Signed(v) => argument_value::Value::Signed(*v),
-                ObjInsArgValue::Unsigned(v) => argument_value::Value::Unsigned(*v),
-                ObjInsArgValue::Opaque(v) => argument_value::Value::Opaque(v.to_string()),
-            }),
-        }
-    }
-}
-
-impl Relocation {
-    pub fn new(object: &ObjInfo, reloc: &ObjReloc) -> Self {
-        Self {
-            r#type: match reloc.flags {
-                object::RelocationFlags::Elf { r_type } => r_type,
-                object::RelocationFlags::MachO { r_type, .. } => r_type as u32,
-                object::RelocationFlags::Coff { typ } => typ as u32,
-                object::RelocationFlags::Xcoff { r_rtype, .. } => r_rtype as u32,
-                _ => unreachable!(),
-            },
-            type_name: object.arch.display_reloc(reloc.flags).into_owned(),
-            target: Some(RelocationTarget {
-                symbol: Some(Symbol::new(&reloc.target)),
-                addend: reloc.addend,
-            }),
-        }
-    }
-}
-
-impl InstructionDiff {
-    pub fn new(object: &ObjInfo, instruction_diff: &ObjInsDiff) -> Self {
-        Self {
-            instruction: instruction_diff.ins.as_ref().map(|ins| Instruction::new(object, ins)),
-            diff_kind: DiffKind::from(instruction_diff.kind) as i32,
-            branch_from: instruction_diff.branch_from.as_ref().map(InstructionBranchFrom::new),
-            branch_to: instruction_diff.branch_to.as_ref().map(InstructionBranchTo::new),
-            arg_diff: instruction_diff.arg_diff.iter().map(ArgumentDiff::new).collect(),
-        }
-    }
-}
-
-impl ArgumentDiff {
-    pub fn new(value: &Option<ObjInsArgDiff>) -> Self {
-        Self { diff_index: value.as_ref().map(|v| v.idx as u32) }
-    }
-}
-
-impl From<ObjInsDiffKind> for DiffKind {
-    fn from(value: ObjInsDiffKind) -> Self {
-        match value {
-            ObjInsDiffKind::None => DiffKind::DiffNone,
-            ObjInsDiffKind::OpMismatch => DiffKind::DiffOpMismatch,
-            ObjInsDiffKind::ArgMismatch => DiffKind::DiffArgMismatch,
-            ObjInsDiffKind::Replace => DiffKind::DiffReplace,
-            ObjInsDiffKind::Delete => DiffKind::DiffDelete,
-            ObjInsDiffKind::Insert => DiffKind::DiffInsert,
-        }
-    }
-}
-
-impl From<ObjDataDiffKind> for DiffKind {
-    fn from(value: ObjDataDiffKind) -> Self {
-        match value {
-            ObjDataDiffKind::None => DiffKind::DiffNone,
-            ObjDataDiffKind::Replace => DiffKind::DiffReplace,
-            ObjDataDiffKind::Delete => DiffKind::DiffDelete,
-            ObjDataDiffKind::Insert => DiffKind::DiffInsert,
-        }
-    }
-}
-
-impl InstructionBranchFrom {
-    pub fn new(value: &ObjInsBranchFrom) -> Self {
-        Self {
-            instruction_index: value.ins_idx.iter().map(|&x| x as u32).collect(),
-            branch_index: value.branch_idx as u32,
-        }
-    }
-}
-
-impl InstructionBranchTo {
-    pub fn new(value: &ObjInsBranchTo) -> Self {
-        Self { instruction_index: value.ins_idx as u32, branch_index: value.branch_idx as u32 }
-    }
-}

objdiff-core/src/bindings/mod.rs

@@ -1,5 +1 @@
-#[cfg(feature = "any-arch")]
-pub mod diff;
 pub mod report;
-#[cfg(feature = "wasm")]
-pub mod wasm;

objdiff-core/src/bindings/report.rs

@@ -1,12 +1,18 @@
 #![allow(clippy::needless_lifetimes)] // Generated serde code
-use std::ops::AddAssign;
 
-use anyhow::{bail, Result};
+use alloc::{
+    string::{String, ToString},
+    vec,
+    vec::Vec,
+};
+use core::ops::AddAssign;
+
+use anyhow::{Result, bail};
 use prost::Message;
-use serde_json::error::Category;
 
 // Protobuf report types
 include!(concat!(env!("OUT_DIR"), "/objdiff.report.rs"));
+#[cfg(feature = "serde")]
 include!(concat!(env!("OUT_DIR"), "/objdiff.report.serde.rs"));
 
 pub const REPORT_VERSION: u32 = 2;
@@ -15,23 +21,30 @@ impl Report {
     /// Attempts to parse the report as binary protobuf or JSON.
     pub fn parse(data: &[u8]) -> Result<Self> {
         if data.is_empty() {
-            bail!(std::io::Error::from(std::io::ErrorKind::UnexpectedEof));
+            bail!("Empty data");
         }
         let report = if data[0] == b'{' {
             // Load as JSON
-            Self::from_json(data)?
+            #[cfg(feature = "serde")]
+            {
+                Self::from_json(data)?
+            }
+            #[cfg(not(feature = "serde"))]
+            bail!("JSON report parsing requires the `serde` feature")
         } else {
             // Load as binary protobuf
-            Self::decode(data)?
+            Self::decode(data).map_err(|e| anyhow::Error::msg(e.to_string()))?
         };
         Ok(report)
     }
 
+    #[cfg(feature = "serde")]
     /// Attempts to parse the report as JSON, migrating from the legacy report format if necessary.
     fn from_json(bytes: &[u8]) -> Result<Self, serde_json::Error> {
         match serde_json::from_slice::<Self>(bytes) {
             Ok(report) => Ok(report),
             Err(e) => {
+                use serde_json::error::Category;
                 match e.classify() {
                     Category::Io | Category::Eof | Category::Syntax => Err(e),
                     Category::Data => {
@@ -304,7 +317,8 @@ impl FromIterator<Measures> for Measures {
 }
 
 // Older JSON report types
-#[derive(Debug, Clone, Default, serde::Serialize, serde::Deserialize)]
+#[derive(Debug, Clone, Default)]
+#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
 struct LegacyReport {
     fuzzy_match_percent: f32,
     total_code: u64,
@@ -341,7 +355,8 @@ impl From<LegacyReport> for Report {
     }
 }
 
-#[derive(Debug, Clone, Default, serde::Serialize, serde::Deserialize)]
+#[derive(Debug, Clone, Default)]
+#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
 struct LegacyReportUnit {
     name: String,
     fuzzy_match_percent: f32,
@@ -351,11 +366,11 @@ struct LegacyReportUnit {
     matched_data: u64,
     total_functions: u32,
     matched_functions: u32,
-    #[serde(skip_serializing_if = "Option::is_none")]
+    #[cfg_attr(feature = "serde", serde(skip_serializing_if = "Option::is_none"))]
     complete: Option<bool>,
-    #[serde(skip_serializing_if = "Option::is_none")]
+    #[cfg_attr(feature = "serde", serde(skip_serializing_if = "Option::is_none"))]
     module_name: Option<String>,
-    #[serde(skip_serializing_if = "Option::is_none")]
+    #[cfg_attr(feature = "serde", serde(skip_serializing_if = "Option::is_none"))]
     module_id: Option<u32>,
     sections: Vec<LegacyReportItem>,
     functions: Vec<LegacyReportItem>,
@@ -389,16 +404,20 @@ impl From<LegacyReportUnit> for ReportUnit {
     }
 }
 
-#[derive(Debug, Clone, Default, serde::Serialize, serde::Deserialize)]
+#[derive(Debug, Clone, Default)]
+#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
 struct LegacyReportItem {
     name: String,
-    #[serde(skip_serializing_if = "Option::is_none")]
+    #[cfg_attr(feature = "serde", serde(skip_serializing_if = "Option::is_none"))]
     demangled_name: Option<String>,
-    #[serde(
-        default,
-        skip_serializing_if = "Option::is_none",
-        serialize_with = "serialize_hex",
-        deserialize_with = "deserialize_hex"
+    #[cfg_attr(
+        feature = "serde",
+        serde(
+            default,
+            skip_serializing_if = "Option::is_none",
+            serialize_with = "serialize_hex",
+            deserialize_with = "deserialize_hex"
+        )
     )]
     address: Option<u64>,
     size: u64,
@@ -415,19 +434,18 @@ impl From<LegacyReportItem> for ReportItem {
                 demangled_name: value.demangled_name,
                 virtual_address: value.address,
             }),
+            address: None,
         }
     }
 }
 
+#[cfg(feature = "serde")]
 fn serialize_hex<S>(x: &Option<u64>, s: S) -> Result<S::Ok, S::Error>
 where S: serde::Serializer {
-    if let Some(x) = x {
-        s.serialize_str(&format!("{:#x}", x))
-    } else {
-        s.serialize_none()
-    }
+    if let Some(x) = x { s.serialize_str(&format!("{x:#x}")) } else { s.serialize_none() }
 }
 
+#[cfg(feature = "serde")]
 fn deserialize_hex<'de, D>(d: D) -> Result<Option<u64>, D::Error>
 where D: serde::Deserializer<'de> {
     use serde::Deserialize;

objdiff-core/src/bindings/wasm.rs

@@ -1,81 +0,0 @@
-use prost::Message;
-use wasm_bindgen::prelude::*;
-
-use crate::{bindings::diff::DiffResult, diff, obj};
-
-fn parse_object(
-    data: Option<Box<[u8]>>,
-    config: &diff::DiffObjConfig,
-) -> Result<Option<obj::ObjInfo>, JsError> {
-    data.as_ref().map(|data| obj::read::parse(data, config)).transpose().to_js()
-}
-
-fn parse_and_run_diff(
-    left: Option<Box<[u8]>>,
-    right: Option<Box<[u8]>>,
-    diff_config: diff::DiffObjConfig,
-    mapping_config: diff::MappingConfig,
-) -> Result<DiffResult, JsError> {
-    let target = parse_object(left, &diff_config)?;
-    let base = parse_object(right, &diff_config)?;
-    run_diff(target.as_ref(), base.as_ref(), diff_config, mapping_config)
-}
-
-fn run_diff(
-    left: Option<&obj::ObjInfo>,
-    right: Option<&obj::ObjInfo>,
-    diff_config: diff::DiffObjConfig,
-    mapping_config: diff::MappingConfig,
-) -> Result<DiffResult, JsError> {
-    log::debug!("Running diff with config: {:?}", diff_config);
-    let result = diff::diff_objs(&diff_config, &mapping_config, left, right, None).to_js()?;
-    let left = left.and_then(|o| result.left.as_ref().map(|d| (o, d)));
-    let right = right.and_then(|o| result.right.as_ref().map(|d| (o, d)));
-    Ok(DiffResult::new(left, right))
-}
-
-// #[wasm_bindgen]
-// pub fn run_diff_json(
-//     left: Option<Box<[u8]>>,
-//     right: Option<Box<[u8]>>,
-//     config: diff::DiffObjConfig,
-// ) -> Result<String, JsError> {
-//     let out = run_diff_opt_box(left, right, config)?;
-//     serde_json::to_string(&out).map_err(|e| JsError::new(&e.to_string()))
-// }
-
-#[wasm_bindgen]
-pub fn run_diff_proto(
-    left: Option<Box<[u8]>>,
-    right: Option<Box<[u8]>>,
-    diff_config: diff::DiffObjConfig,
-    mapping_config: diff::MappingConfig,
-) -> Result<Box<[u8]>, JsError> {
-    let out = parse_and_run_diff(left, right, diff_config, mapping_config)?;
-    Ok(out.encode_to_vec().into_boxed_slice())
-}
-
-#[wasm_bindgen(start)]
-fn start() -> Result<(), JsError> {
-    console_error_panic_hook::set_once();
-    #[cfg(debug_assertions)]
-    console_log::init_with_level(log::Level::Debug).to_js()?;
-    #[cfg(not(debug_assertions))]
-    console_log::init_with_level(log::Level::Info).to_js()?;
-    Ok(())
-}
-
-#[inline]
-fn to_js_error(e: impl std::fmt::Display) -> JsError { JsError::new(&e.to_string()) }
-
-trait ToJsResult {
-    type Output;
-
-    fn to_js(self) -> Result<Self::Output, JsError>;
-}
-
-impl<T, E: std::fmt::Display> ToJsResult for Result<T, E> {
-    type Output = T;
-
-    fn to_js(self) -> Result<T, JsError> { self.map_err(to_js_error) }
-}

objdiff-core/src/build/mod.rs

@@ -1,9 +1,8 @@
 pub mod watcher;
 
-use std::{
-    path::{Path, PathBuf},
-    process::Command,
-};
+use std::process::Command;
+
+use typed_path::{Utf8PlatformPathBuf, Utf8UnixPath};
 
 pub struct BuildStatus {
     pub success: bool,
@@ -25,14 +24,14 @@ impl Default for BuildStatus {
 
 #[derive(Debug, Clone)]
 pub struct BuildConfig {
-    pub project_dir: Option<PathBuf>,
+    pub project_dir: Option<Utf8PlatformPathBuf>,
     pub custom_make: Option<String>,
     pub custom_args: Option<Vec<String>>,
     #[allow(unused)]
     pub selected_wsl_distro: Option<String>,
 }
 
-pub fn run_make(config: &BuildConfig, arg: &Path) -> BuildStatus {
+pub fn run_make(config: &BuildConfig, arg: &Utf8UnixPath) -> BuildStatus {
     let Some(cwd) = &config.project_dir else {
         return BuildStatus {
             success: false,
@@ -50,9 +49,9 @@ pub fn run_make(config: &BuildConfig, arg: &Path) -> BuildStatus {
     };
     #[cfg(windows)]
     let mut command = {
+        use alloc::borrow::Cow;
         use std::os::windows::process::CommandExt;
 
-        use path_slash::PathExt;
         let mut command = if config.selected_wsl_distro.is_some() {
             Command::new("wsl")
         } else {
@@ -62,21 +61,25 @@ pub fn run_make(config: &BuildConfig, arg: &Path) -> BuildStatus {
             // Strip distro root prefix \\wsl.localhost\{distro}
             let wsl_path_prefix = format!("\\\\wsl.localhost\\{}", distro);
             let cwd = match cwd.strip_prefix(wsl_path_prefix) {
-                Ok(new_cwd) => format!("/{}", new_cwd.to_slash_lossy().as_ref()),
-                Err(_) => cwd.to_string_lossy().to_string(),
+                // Convert to absolute Unix path
+                Ok(new_cwd) => Cow::Owned(
+                    Utf8UnixPath::new("/").join(new_cwd.with_unix_encoding()).into_string(),
+                ),
+                // Otherwise, use the Windows path as is
+                Err(_) => Cow::Borrowed(cwd.as_str()),
             };
 
             command
                 .arg("--cd")
-                .arg(cwd)
+                .arg::<&str>(cwd.as_ref())
                 .arg("-d")
                 .arg(distro)
                 .arg("--")
                 .arg(make)
                 .args(make_args)
-                .arg(arg.to_slash_lossy().as_ref());
+                .arg(arg.as_str());
         } else {
-            command.current_dir(cwd).args(make_args).arg(arg.to_slash_lossy().as_ref());
+            command.current_dir(cwd).args(make_args).arg(arg.as_str());
         }
         command.creation_flags(winapi::um::winbase::CREATE_NO_WINDOW);
         command

objdiff-core/src/build/watcher.rs

@@ -2,8 +2,8 @@ use std::{
     fs,
     path::{Path, PathBuf},
     sync::{
-        atomic::{AtomicBool, Ordering},
         Arc,
+        atomic::{AtomicBool, Ordering},
     },
     task::Waker,
     time::Duration,
@@ -11,7 +11,7 @@ use std::{
 
 use globset::GlobSet;
 use notify::RecursiveMode;
-use notify_debouncer_full::{new_debouncer_opt, DebounceEventResult};
+use notify_debouncer_full::{DebounceEventResult, new_debouncer_opt};
 
 pub type Watcher = notify_debouncer_full::Debouncer<
     notify::RecommendedWatcher,
@@ -29,6 +29,7 @@ pub fn create_watcher(
     modified: Arc<AtomicBool>,
     project_dir: &Path,
     patterns: GlobSet,
+    ignore_patterns: GlobSet,
     waker: Waker,
 ) -> notify::Result<Watcher> {
     let base_dir = fs::canonicalize(project_dir)?;
@@ -54,8 +55,8 @@ pub fn create_watcher(
                         let Ok(path) = path.strip_prefix(&base_dir_clone) else {
                             continue;
                         };
-                        if patterns.is_match(path) {
-                            // log::info!("File modified: {}", path.display());
+                        if patterns.is_match(path) && !ignore_patterns.is_match(path) {
+                            log::debug!("File modified: {}", path.display());
                             any_match = true;
                         }
                     }

objdiff-core/src/config/mod.rs

@@ -1,37 +1,49 @@
-use std::{
+pub mod path;
+
+use alloc::{
     collections::BTreeMap,
-    fs,
-    fs::File,
-    io::{BufReader, BufWriter, Read},
-    path::{Path, PathBuf},
+    string::{String, ToString},
+    vec::Vec,
 };
 
-use anyhow::{anyhow, Context, Result};
-use filetime::FileTime;
+use anyhow::{Context, Result, anyhow};
 use globset::{Glob, GlobSet, GlobSetBuilder};
+use path::unix_path_serde_option;
+use typed_path::Utf8UnixPathBuf;
 
-#[derive(Default, Clone, serde::Serialize, serde::Deserialize)]
-#[cfg_attr(feature = "wasm", derive(tsify_next::Tsify), tsify(from_wasm_abi))]
+#[derive(Default, Clone)]
+#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize), serde(default))]
 pub struct ProjectConfig {
-    #[serde(default, skip_serializing_if = "Option::is_none")]
+    #[cfg_attr(feature = "serde", serde(skip_serializing_if = "Option::is_none"))]
     pub min_version: Option<String>,
-    #[serde(default, skip_serializing_if = "Option::is_none")]
+    #[cfg_attr(feature = "serde", serde(skip_serializing_if = "Option::is_none"))]
     pub custom_make: Option<String>,
-    #[serde(default, skip_serializing_if = "Option::is_none")]
+    #[cfg_attr(feature = "serde", serde(skip_serializing_if = "Option::is_none"))]
     pub custom_args: Option<Vec<String>>,
-    #[serde(default, skip_serializing_if = "Option::is_none")]
-    pub target_dir: Option<PathBuf>,
-    #[serde(default, skip_serializing_if = "Option::is_none")]
-    pub base_dir: Option<PathBuf>,
-    #[serde(default, skip_serializing_if = "Option::is_none")]
+    #[cfg_attr(
+        feature = "serde",
+        serde(with = "unix_path_serde_option", skip_serializing_if = "Option::is_none")
+    )]
+    pub target_dir: Option<Utf8UnixPathBuf>,
+    #[cfg_attr(
+        feature = "serde",
+        serde(with = "unix_path_serde_option", skip_serializing_if = "Option::is_none")
+    )]
+    pub base_dir: Option<Utf8UnixPathBuf>,
+    #[cfg_attr(feature = "serde", serde(skip_serializing_if = "Option::is_none"))]
     pub build_base: Option<bool>,
-    #[serde(default, skip_serializing_if = "Option::is_none")]
+    #[cfg_attr(feature = "serde", serde(skip_serializing_if = "Option::is_none"))]
     pub build_target: Option<bool>,
-    #[serde(default, skip_serializing_if = "Option::is_none")]
+    #[cfg_attr(feature = "serde", serde(skip_serializing_if = "Option::is_none"))]
     pub watch_patterns: Option<Vec<String>>,
-    #[serde(default, alias = "objects", skip_serializing_if = "Option::is_none")]
+    #[cfg_attr(feature = "serde", serde(skip_serializing_if = "Option::is_none"))]
+    pub ignore_patterns: Option<Vec<String>>,
+    #[cfg_attr(
+        feature = "serde",
+        serde(alias = "objects", skip_serializing_if = "Option::is_none")
+    )]
     pub units: Option<Vec<ProjectObject>>,
-    #[serde(default, skip_serializing_if = "Option::is_none")]
+    #[cfg_attr(feature = "serde", serde(skip_serializing_if = "Option::is_none"))]
     pub progress_categories: Option<Vec<ProjectProgressCategory>>,
 }
 
@@ -39,11 +51,6 @@ impl ProjectConfig {
     #[inline]
     pub fn units(&self) -> &[ProjectObject] { self.units.as_deref().unwrap_or_default() }
 
-    #[inline]
-    pub fn units_mut(&mut self) -> &mut Vec<ProjectObject> {
-        self.units.get_or_insert_with(Vec::new)
-    }
-
     #[inline]
     pub fn progress_categories(&self) -> &[ProjectProgressCategory] {
         self.progress_categories.as_deref().unwrap_or_default()
@@ -61,60 +68,78 @@ impl ProjectConfig {
                 .map(|s| Glob::new(s))
                 .collect::<Result<Vec<Glob>, globset::Error>>()?
         } else {
-            DEFAULT_WATCH_PATTERNS.iter().map(|s| Glob::new(s).unwrap()).collect()
+            default_watch_patterns()
+        })
+    }
+
+    pub fn build_ignore_patterns(&self) -> Result<Vec<Glob>, globset::Error> {
+        Ok(if let Some(ignore_patterns) = &self.ignore_patterns {
+            ignore_patterns
+                .iter()
+                .map(|s| Glob::new(s))
+                .collect::<Result<Vec<Glob>, globset::Error>>()?
+        } else {
+            default_ignore_patterns()
         })
     }
 }
 
-#[derive(Default, Clone, serde::Serialize, serde::Deserialize)]
-#[cfg_attr(feature = "wasm", derive(tsify_next::Tsify), tsify(from_wasm_abi))]
+#[derive(Default, Clone)]
+#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize), serde(default))]
 pub struct ProjectObject {
-    #[serde(default, skip_serializing_if = "Option::is_none")]
+    #[cfg_attr(feature = "serde", serde(skip_serializing_if = "Option::is_none"))]
     pub name: Option<String>,
-    #[serde(default, skip_serializing_if = "Option::is_none")]
-    pub path: Option<PathBuf>,
-    #[serde(default, skip_serializing_if = "Option::is_none")]
-    pub target_path: Option<PathBuf>,
-    #[serde(default, skip_serializing_if = "Option::is_none")]
-    pub base_path: Option<PathBuf>,
-    #[serde(default, skip_serializing_if = "Option::is_none")]
+    #[cfg_attr(
+        feature = "serde",
+        serde(with = "unix_path_serde_option", skip_serializing_if = "Option::is_none")
+    )]
+    pub path: Option<Utf8UnixPathBuf>,
+    #[cfg_attr(
+        feature = "serde",
+        serde(with = "unix_path_serde_option", skip_serializing_if = "Option::is_none")
+    )]
+    pub target_path: Option<Utf8UnixPathBuf>,
+    #[cfg_attr(
+        feature = "serde",
+        serde(with = "unix_path_serde_option", skip_serializing_if = "Option::is_none")
+    )]
+    pub base_path: Option<Utf8UnixPathBuf>,
+    #[cfg_attr(feature = "serde", serde(skip_serializing_if = "Option::is_none"))]
     #[deprecated(note = "Use metadata.reverse_fn_order")]
     pub reverse_fn_order: Option<bool>,
-    #[serde(default, skip_serializing_if = "Option::is_none")]
+    #[cfg_attr(feature = "serde", serde(skip_serializing_if = "Option::is_none"))]
     #[deprecated(note = "Use metadata.complete")]
     pub complete: Option<bool>,
-    #[serde(default, skip_serializing_if = "Option::is_none")]
+    #[cfg_attr(feature = "serde", serde(skip_serializing_if = "Option::is_none"))]
     pub scratch: Option<ScratchConfig>,
-    #[serde(default, skip_serializing_if = "Option::is_none")]
+    #[cfg_attr(feature = "serde", serde(skip_serializing_if = "Option::is_none"))]
     pub metadata: Option<ProjectObjectMetadata>,
-    #[serde(default, skip_serializing_if = "Option::is_none")]
-    pub symbol_mappings: Option<SymbolMappings>,
+    #[cfg_attr(feature = "serde", serde(skip_serializing_if = "Option::is_none"))]
+    pub symbol_mappings: Option<BTreeMap<String, String>>,
 }
 
-#[cfg_attr(feature = "wasm", tsify_next::declare)]
-pub type SymbolMappings = BTreeMap<String, String>;
-
-#[derive(Default, Clone, serde::Serialize, serde::Deserialize)]
-#[cfg_attr(feature = "wasm", derive(tsify_next::Tsify), tsify(from_wasm_abi))]
+#[derive(Default, Clone)]
+#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize), serde(default))]
 pub struct ProjectObjectMetadata {
-    #[serde(default, skip_serializing_if = "Option::is_none")]
+    #[cfg_attr(feature = "serde", serde(skip_serializing_if = "Option::is_none"))]
     pub complete: Option<bool>,
-    #[serde(default, skip_serializing_if = "Option::is_none")]
+    #[cfg_attr(feature = "serde", serde(skip_serializing_if = "Option::is_none"))]
     pub reverse_fn_order: Option<bool>,
-    #[serde(default, skip_serializing_if = "Option::is_none")]
-    pub source_path: Option<String>,
-    #[serde(default, skip_serializing_if = "Option::is_none")]
+    #[cfg_attr(
+        feature = "serde",
+        serde(with = "unix_path_serde_option", skip_serializing_if = "Option::is_none")
+    )]
+    pub source_path: Option<Utf8UnixPathBuf>,
+    #[cfg_attr(feature = "serde", serde(skip_serializing_if = "Option::is_none"))]
     pub progress_categories: Option<Vec<String>>,
-    #[serde(default, skip_serializing_if = "Option::is_none")]
+    #[cfg_attr(feature = "serde", serde(skip_serializing_if = "Option::is_none"))]
     pub auto_generated: Option<bool>,
 }
 
-#[derive(Default, Clone, serde::Serialize, serde::Deserialize)]
-#[cfg_attr(feature = "wasm", derive(tsify_next::Tsify), tsify(from_wasm_abi))]
+#[derive(Default, Clone)]
+#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize), serde(default))]
 pub struct ProjectProgressCategory {
-    #[serde(default)]
     pub id: String,
-    #[serde(default)]
     pub name: String,
 }
 
@@ -123,33 +148,12 @@ impl ProjectObject {
         if let Some(name) = &self.name {
             name
         } else if let Some(path) = &self.path {
-            path.to_str().unwrap_or("[invalid path]")
+            path.as_str()
         } else {
             "[unknown]"
         }
     }
 
-    pub fn resolve_paths(
-        &mut self,
-        project_dir: &Path,
-        target_obj_dir: Option<&Path>,
-        base_obj_dir: Option<&Path>,
-    ) {
-        if let (Some(target_obj_dir), Some(path), None) =
-            (target_obj_dir, &self.path, &self.target_path)
-        {
-            self.target_path = Some(target_obj_dir.join(path));
-        } else if let Some(path) = &self.target_path {
-            self.target_path = Some(project_dir.join(path));
-        }
-        if let (Some(base_obj_dir), Some(path), None) = (base_obj_dir, &self.path, &self.base_path)
-        {
-            self.base_path = Some(base_obj_dir.join(path));
-        } else if let Some(path) = &self.base_path {
-            self.base_path = Some(project_dir.join(path));
-        }
-    }
-
     pub fn complete(&self) -> Option<bool> {
         #[expect(deprecated)]
         self.metadata.as_ref().and_then(|m| m.complete).or(self.complete)
@@ -164,25 +168,36 @@ impl ProjectObject {
         self.metadata.as_ref().and_then(|m| m.auto_generated).unwrap_or(false)
     }
 
-    pub fn source_path(&self) -> Option<&String> {
+    pub fn source_path(&self) -> Option<&Utf8UnixPathBuf> {
         self.metadata.as_ref().and_then(|m| m.source_path.as_ref())
     }
+
+    pub fn progress_categories(&self) -> &[String] {
+        self.metadata.as_ref().and_then(|m| m.progress_categories.as_deref()).unwrap_or_default()
+    }
+
+    pub fn auto_generated(&self) -> Option<bool> {
+        self.metadata.as_ref().and_then(|m| m.auto_generated)
+    }
 }
 
-#[derive(Default, Clone, Eq, PartialEq, serde::Deserialize, serde::Serialize)]
-#[cfg_attr(feature = "wasm", derive(tsify_next::Tsify), tsify(from_wasm_abi))]
+#[derive(Default, Clone, Eq, PartialEq)]
+#[cfg_attr(feature = "serde", derive(serde::Deserialize, serde::Serialize), serde(default))]
 pub struct ScratchConfig {
-    #[serde(default, skip_serializing_if = "Option::is_none")]
+    #[cfg_attr(feature = "serde", serde(skip_serializing_if = "Option::is_none"))]
     pub platform: Option<String>,
-    #[serde(default, skip_serializing_if = "Option::is_none")]
+    #[cfg_attr(feature = "serde", serde(skip_serializing_if = "Option::is_none"))]
     pub compiler: Option<String>,
-    #[serde(default, skip_serializing_if = "Option::is_none")]
+    #[cfg_attr(feature = "serde", serde(skip_serializing_if = "Option::is_none"))]
     pub c_flags: Option<String>,
-    #[serde(default, skip_serializing_if = "Option::is_none")]
-    pub ctx_path: Option<PathBuf>,
-    #[serde(default, skip_serializing_if = "Option::is_none")]
+    #[cfg_attr(
+        feature = "serde",
+        serde(with = "unix_path_serde_option", skip_serializing_if = "Option::is_none")
+    )]
+    pub ctx_path: Option<Utf8UnixPathBuf>,
+    #[cfg_attr(feature = "serde", serde(skip_serializing_if = "Option::is_none"))]
     pub build_ctx: Option<bool>,
-    #[serde(default, skip_serializing_if = "Option::is_none")]
+    #[cfg_attr(feature = "serde", serde(skip_serializing_if = "Option::is_none"))]
     pub preset_id: Option<u32>,
 }
 
@@ -193,20 +208,30 @@ pub const DEFAULT_WATCH_PATTERNS: &[&str] = &[
     "*.inc", "*.py", "*.yml", "*.txt", "*.json",
 ];
 
+pub const DEFAULT_IGNORE_PATTERNS: &[&str] = &["build/**/*"];
+
 pub fn default_watch_patterns() -> Vec<Glob> {
     DEFAULT_WATCH_PATTERNS.iter().map(|s| Glob::new(s).unwrap()).collect()
 }
 
-#[derive(Clone, Eq, PartialEq)]
-pub struct ProjectConfigInfo {
-    pub path: PathBuf,
-    pub timestamp: Option<FileTime>,
+pub fn default_ignore_patterns() -> Vec<Glob> {
+    DEFAULT_IGNORE_PATTERNS.iter().map(|s| Glob::new(s).unwrap()).collect()
 }
 
-pub fn try_project_config(dir: &Path) -> Option<(Result<ProjectConfig>, ProjectConfigInfo)> {
+#[cfg(feature = "std")]
+#[derive(Clone, Eq, PartialEq)]
+pub struct ProjectConfigInfo {
+    pub path: std::path::PathBuf,
+    pub timestamp: Option<filetime::FileTime>,
+}
+
+#[cfg(feature = "std")]
+pub fn try_project_config(
+    dir: &std::path::Path,
+) -> Option<(Result<ProjectConfig>, ProjectConfigInfo)> {
     for filename in CONFIG_FILENAMES.iter() {
         let config_path = dir.join(filename);
-        let Ok(file) = File::open(&config_path) else {
+        let Ok(file) = std::fs::File::open(&config_path) else {
             continue;
         };
         let metadata = file.metadata();
@@ -214,12 +239,9 @@ pub fn try_project_config(dir: &Path) -> Option<(Result<ProjectConfig>, ProjectC
             if !metadata.is_file() {
                 continue;
             }
-            let ts = FileTime::from_last_modification_time(&metadata);
-            let mut reader = BufReader::new(file);
-            let mut result = match filename.contains("json") {
-                true => read_json_config(&mut reader),
-                false => read_yml_config(&mut reader),
-            };
+            let ts = filetime::FileTime::from_last_modification_time(&metadata);
+            let mut reader = std::io::BufReader::new(file);
+            let mut result = read_json_config(&mut reader);
             if let Ok(config) = &result {
                 // Validate min_version if present
                 if let Err(e) = validate_min_version(config) {
@@ -232,40 +254,42 @@ pub fn try_project_config(dir: &Path) -> Option<(Result<ProjectConfig>, ProjectC
     None
 }
 
+#[cfg(feature = "std")]
 pub fn save_project_config(
     config: &ProjectConfig,
     info: &ProjectConfigInfo,
 ) -> Result<ProjectConfigInfo> {
     if let Some(last_ts) = info.timestamp {
         // Check if the file has changed since we last read it
-        if let Ok(metadata) = fs::metadata(&info.path) {
-            let ts = FileTime::from_last_modification_time(&metadata);
+        if let Ok(metadata) = std::fs::metadata(&info.path) {
+            let ts = filetime::FileTime::from_last_modification_time(&metadata);
             if ts != last_ts {
                 return Err(anyhow!("Config file has changed since last read"));
             }
         }
     }
-    let mut writer =
-        BufWriter::new(File::create(&info.path).context("Failed to create config file")?);
+    let mut writer = std::io::BufWriter::new(
+        std::fs::File::create(&info.path).context("Failed to create config file")?,
+    );
     let ext = info.path.extension().and_then(|ext| ext.to_str()).unwrap_or("json");
     match ext {
         "json" => serde_json::to_writer_pretty(&mut writer, config).context("Failed to write JSON"),
-        "yml" | "yaml" => {
-            serde_yaml::to_writer(&mut writer, config).context("Failed to write YAML")
-        }
         _ => Err(anyhow!("Unknown config file extension: {ext}")),
     }?;
     let file = writer.into_inner().context("Failed to flush file")?;
     let metadata = file.metadata().context("Failed to get file metadata")?;
-    let ts = FileTime::from_last_modification_time(&metadata);
+    let ts = filetime::FileTime::from_last_modification_time(&metadata);
     Ok(ProjectConfigInfo { path: info.path.clone(), timestamp: Some(ts) })
 }
 
 fn validate_min_version(config: &ProjectConfig) -> Result<()> {
     let Some(min_version) = &config.min_version else { return Ok(()) };
     let version = semver::Version::parse(env!("CARGO_PKG_VERSION"))
+        .map_err(|e| anyhow::Error::msg(e.to_string()))
         .context("Failed to parse package version")?;
-    let min_version = semver::Version::parse(min_version).context("Failed to parse min_version")?;
+    let min_version = semver::Version::parse(min_version)
+        .map_err(|e| anyhow::Error::msg(e.to_string()))
+        .context("Failed to parse min_version")?;
     if version >= min_version {
         Ok(())
     } else {
@@ -273,15 +297,12 @@ fn validate_min_version(config: &ProjectConfig) -> Result<()> {
     }
 }
 
-fn read_yml_config<R: Read>(reader: &mut R) -> Result<ProjectConfig> {
-    Ok(serde_yaml::from_reader(reader)?)
-}
-
-fn read_json_config<R: Read>(reader: &mut R) -> Result<ProjectConfig> {
+#[cfg(feature = "std")]
+fn read_json_config<R: std::io::Read>(reader: &mut R) -> Result<ProjectConfig> {
     Ok(serde_json::from_reader(reader)?)
 }
 
-pub fn build_globset(vec: &[Glob]) -> std::result::Result<GlobSet, globset::Error> {
+pub fn build_globset(vec: &[Glob]) -> Result<GlobSet, globset::Error> {
     let mut builder = GlobSetBuilder::new();
     for glob in vec {
         builder.add(glob.clone());

objdiff-core/src/config/path.rs

@@ -0,0 +1,57 @@
+// For argp::FromArgs
+#[cfg(feature = "std")]
+pub fn platform_path(value: &str) -> Result<typed_path::Utf8PlatformPathBuf, String> {
+    Ok(typed_path::Utf8PlatformPathBuf::from(value))
+}
+
+/// Checks if the path is valid UTF-8 and returns it as a [`Utf8PlatformPath`].
+#[cfg(feature = "std")]
+pub fn check_path(
+    path: &std::path::Path,
+) -> Result<&typed_path::Utf8PlatformPath, core::str::Utf8Error> {
+    typed_path::Utf8PlatformPath::from_bytes_path(typed_path::PlatformPath::new(
+        path.as_os_str().as_encoded_bytes(),
+    ))
+}
+
+/// Checks if the path is valid UTF-8 and returns it as a [`Utf8NativePathBuf`].
+#[cfg(feature = "std")]
+pub fn check_path_buf(
+    path: std::path::PathBuf,
+) -> Result<typed_path::Utf8PlatformPathBuf, alloc::string::FromUtf8Error> {
+    typed_path::Utf8PlatformPathBuf::from_bytes_path_buf(typed_path::PlatformPathBuf::from(
+        path.into_os_string().into_encoded_bytes(),
+    ))
+}
+
+#[cfg(feature = "serde")]
+pub mod unix_path_serde_option {
+    use serde::{Deserialize, Deserializer, Serializer};
+    use typed_path::Utf8UnixPathBuf;
+
+    pub fn serialize<S>(path: &Option<Utf8UnixPathBuf>, s: S) -> Result<S::Ok, S::Error>
+    where S: Serializer {
+        if let Some(path) = path { s.serialize_some(path.as_str()) } else { s.serialize_none() }
+    }
+
+    pub fn deserialize<'de, D>(deserializer: D) -> Result<Option<Utf8UnixPathBuf>, D::Error>
+    where D: Deserializer<'de> {
+        Ok(Option::<String>::deserialize(deserializer)?.map(Utf8UnixPathBuf::from))
+    }
+}
+
+#[cfg(all(feature = "serde", feature = "std"))]
+pub mod platform_path_serde_option {
+    use serde::{Deserialize, Deserializer, Serializer};
+    use typed_path::Utf8PlatformPathBuf;
+
+    pub fn serialize<S>(path: &Option<Utf8PlatformPathBuf>, s: S) -> Result<S::Ok, S::Error>
+    where S: Serializer {
+        if let Some(path) = path { s.serialize_some(path.as_str()) } else { s.serialize_none() }
+    }
+
+    pub fn deserialize<'de, D>(deserializer: D) -> Result<Option<Utf8PlatformPathBuf>, D::Error>
+    where D: Deserializer<'de> {
+        Ok(Option::<String>::deserialize(deserializer)?.map(Utf8PlatformPathBuf::from))
+    }
+}

objdiff-core/src/diff/code.rs

@@ -1,413 +1,503 @@
-use std::{cmp::max, collections::BTreeMap};
-
-use anyhow::{anyhow, Result};
-use similar::{capture_diff_slices_deadline, Algorithm};
-
-use super::FunctionRelocDiffs;
-use crate::{
-    arch::ProcessCodeResult,
-    diff::{
-        DiffObjConfig, ObjInsArgDiff, ObjInsBranchFrom, ObjInsBranchTo, ObjInsDiff, ObjInsDiffKind,
-        ObjSymbolDiff,
-    },
-    obj::{
-        ObjInfo, ObjIns, ObjInsArg, ObjReloc, ObjSection, ObjSymbol, ObjSymbolFlags, ObjSymbolKind,
-        SymbolRef,
-    },
+use alloc::{
+    collections::{BTreeMap, btree_map},
+    string::{String, ToString},
+    vec,
+    vec::Vec,
 };
 
-pub fn process_code_symbol(
-    obj: &ObjInfo,
-    symbol_ref: SymbolRef,
-    config: &DiffObjConfig,
-) -> Result<ProcessCodeResult> {
-    let (section, symbol) = obj.section_symbol(symbol_ref);
-    let section = section.ok_or_else(|| anyhow!("Code symbol section not found"))?;
-    let code = &section.data
-        [symbol.section_address as usize..(symbol.section_address + symbol.size) as usize];
-    let mut res = obj.arch.process_code(
-        symbol.address,
-        code,
-        section.orig_index,
-        &section.relocations,
-        &section.line_info,
-        config,
+use anyhow::{Context, Result, anyhow, ensure};
+
+use super::{
+    DiffObjConfig, FunctionRelocDiffs, InstructionArgDiffIndex, InstructionBranchFrom,
+    InstructionBranchTo, InstructionDiffKind, InstructionDiffRow, SymbolDiff,
+    display::display_ins_data_literals,
+};
+use crate::obj::{
+    InstructionArg, InstructionArgValue, InstructionRef, Object, ResolvedInstructionRef,
+    ResolvedRelocation, ResolvedSymbol, SymbolFlag, SymbolKind,
+};
+
+pub fn no_diff_code(
+    obj: &Object,
+    symbol_index: usize,
+    diff_config: &DiffObjConfig,
+) -> Result<SymbolDiff> {
+    let symbol = &obj.symbols[symbol_index];
+    let section_index = symbol.section.ok_or_else(|| anyhow!("Missing section for symbol"))?;
+    let section = &obj.sections[section_index];
+    let data = section.data_range(symbol.address, symbol.size as usize).ok_or_else(|| {
+        anyhow!(
+            "Symbol data out of bounds: {:#x}..{:#x}",
+            symbol.address,
+            symbol.address + symbol.size
+        )
+    })?;
+    let ops = obj.arch.scan_instructions(
+        ResolvedSymbol { obj, symbol_index, symbol, section_index, section, data },
+        diff_config,
     )?;
-
-    for inst in res.insts.iter_mut() {
-        if let Some(reloc) = &mut inst.reloc {
-            if reloc.target.size == 0 && reloc.target.name.is_empty() {
-                // Fake target symbol we added as a placeholder. We need to find the real one.
-                if let Some(real_target) =
-                    find_symbol_matching_fake_symbol_in_sections(&reloc.target, &obj.sections)
-                {
-                    reloc.addend = (reloc.target.address - real_target.address) as i64;
-                    reloc.target = real_target;
-                }
-            }
-        }
+    let mut instruction_rows = Vec::<InstructionDiffRow>::new();
+    for i in &ops {
+        instruction_rows.push(InstructionDiffRow { ins_ref: Some(*i), ..Default::default() });
     }
-
-    Ok(res)
+    resolve_branches(&ops, &mut instruction_rows);
+    Ok(SymbolDiff { target_symbol: None, match_percent: None, diff_score: None, instruction_rows })
 }
 
-pub fn no_diff_code(out: &ProcessCodeResult, symbol_ref: SymbolRef) -> Result<ObjSymbolDiff> {
-    let mut diff = Vec::<ObjInsDiff>::new();
-    for i in &out.insts {
-        diff.push(ObjInsDiff {
-            ins: Some(i.clone()),
-            kind: ObjInsDiffKind::None,
-            ..Default::default()
-        });
-    }
-    resolve_branches(&mut diff);
-    Ok(ObjSymbolDiff { symbol_ref, target_symbol: None, instructions: diff, match_percent: None })
-}
+const PENALTY_IMM_DIFF: u64 = 1;
+const PENALTY_REG_DIFF: u64 = 5;
+const PENALTY_REPLACE: u64 = 60;
+const PENALTY_INSERT_DELETE: u64 = 100;
 
 pub fn diff_code(
-    left_obj: &ObjInfo,
-    right_obj: &ObjInfo,
-    left_out: &ProcessCodeResult,
-    right_out: &ProcessCodeResult,
-    left_symbol_ref: SymbolRef,
-    right_symbol_ref: SymbolRef,
-    config: &DiffObjConfig,
-) -> Result<(ObjSymbolDiff, ObjSymbolDiff)> {
-    let mut left_diff = Vec::<ObjInsDiff>::new();
-    let mut right_diff = Vec::<ObjInsDiff>::new();
-    diff_instructions(&mut left_diff, &mut right_diff, left_out, right_out)?;
+    left_obj: &Object,
+    right_obj: &Object,
+    left_symbol_idx: usize,
+    right_symbol_idx: usize,
+    diff_config: &DiffObjConfig,
+) -> Result<(SymbolDiff, SymbolDiff)> {
+    let left_symbol = &left_obj.symbols[left_symbol_idx];
+    let right_symbol = &right_obj.symbols[right_symbol_idx];
+    let left_section = left_symbol
+        .section
+        .and_then(|i| left_obj.sections.get(i))
+        .ok_or_else(|| anyhow!("Missing section for symbol"))?;
+    let right_section = right_symbol
+        .section
+        .and_then(|i| right_obj.sections.get(i))
+        .ok_or_else(|| anyhow!("Missing section for symbol"))?;
+    let left_data = left_section
+        .data_range(left_symbol.address, left_symbol.size as usize)
+        .ok_or_else(|| {
+            anyhow!(
+                "Symbol data out of bounds: {:#x}..{:#x}",
+                left_symbol.address,
+                left_symbol.address + left_symbol.size
+            )
+        })?;
+    let right_data = right_section
+        .data_range(right_symbol.address, right_symbol.size as usize)
+        .ok_or_else(|| {
+            anyhow!(
+                "Symbol data out of bounds: {:#x}..{:#x}",
+                right_symbol.address,
+                right_symbol.address + right_symbol.size
+            )
+        })?;
 
-    resolve_branches(&mut left_diff);
-    resolve_branches(&mut right_diff);
+    let left_section_idx = left_symbol.section.unwrap();
+    let right_section_idx = right_symbol.section.unwrap();
+    let left_ops = left_obj.arch.scan_instructions(
+        ResolvedSymbol {
+            obj: left_obj,
+            symbol_index: left_symbol_idx,
+            symbol: left_symbol,
+            section_index: left_section_idx,
+            section: left_section,
+            data: left_data,
+        },
+        diff_config,
+    )?;
+    let right_ops = right_obj.arch.scan_instructions(
+        ResolvedSymbol {
+            obj: right_obj,
+            symbol_index: right_symbol_idx,
+            symbol: right_symbol,
+            section_index: right_section_idx,
+            section: right_section,
+            data: right_data,
+        },
+        diff_config,
+    )?;
+    let (mut left_rows, mut right_rows) = diff_instructions(&left_ops, &right_ops)?;
+    resolve_branches(&left_ops, &mut left_rows);
+    resolve_branches(&right_ops, &mut right_rows);
 
-    let mut diff_state = InsDiffState::default();
-    for (left, right) in left_diff.iter_mut().zip(right_diff.iter_mut()) {
-        let result = compare_ins(config, left_obj, right_obj, left, right, &mut diff_state)?;
-        left.kind = result.kind;
-        right.kind = result.kind;
-        left.arg_diff = result.left_args_diff;
-        right.arg_diff = result.right_args_diff;
+    let mut diff_state = InstructionDiffState::default();
+    for (left_row, right_row) in left_rows.iter_mut().zip(right_rows.iter_mut()) {
+        let result = diff_instruction(
+            left_obj,
+            right_obj,
+            left_symbol_idx,
+            right_symbol_idx,
+            left_row.ins_ref,
+            right_row.ins_ref,
+            left_row,
+            right_row,
+            diff_config,
+            &mut diff_state,
+        )?;
+        left_row.kind = result.kind;
+        right_row.kind = result.kind;
+        left_row.arg_diff = result.left_args_diff;
+        right_row.arg_diff = result.right_args_diff;
     }
 
-    let total = left_out.insts.len().max(right_out.insts.len());
-    let percent = if diff_state.diff_count >= total {
-        0.0
+    let max_score = left_ops.len() as u64 * PENALTY_INSERT_DELETE;
+    let diff_score = diff_state.diff_score.min(max_score);
+    let match_percent = if max_score == 0 {
+        100.0
     } else {
-        ((total - diff_state.diff_count) as f32 / total as f32) * 100.0
+        ((1.0 - (diff_score as f64 / max_score as f64)) * 100.0) as f32
     };
 
     Ok((
-        ObjSymbolDiff {
-            symbol_ref: left_symbol_ref,
-            target_symbol: Some(right_symbol_ref),
-            instructions: left_diff,
-            match_percent: Some(percent),
+        SymbolDiff {
+            target_symbol: Some(right_symbol_idx),
+            match_percent: Some(match_percent),
+            diff_score: Some((diff_score, max_score)),
+            instruction_rows: left_rows,
         },
-        ObjSymbolDiff {
-            symbol_ref: right_symbol_ref,
-            target_symbol: Some(left_symbol_ref),
-            instructions: right_diff,
-            match_percent: Some(percent),
+        SymbolDiff {
+            target_symbol: Some(left_symbol_idx),
+            match_percent: Some(match_percent),
+            diff_score: Some((diff_score, max_score)),
+            instruction_rows: right_rows,
         },
     ))
 }
 
 fn diff_instructions(
-    left_diff: &mut Vec<ObjInsDiff>,
-    right_diff: &mut Vec<ObjInsDiff>,
-    left_code: &ProcessCodeResult,
-    right_code: &ProcessCodeResult,
-) -> Result<()> {
-    let ops =
-        capture_diff_slices_deadline(Algorithm::Patience, &left_code.ops, &right_code.ops, None);
+    left_insts: &[InstructionRef],
+    right_insts: &[InstructionRef],
+) -> Result<(Vec<InstructionDiffRow>, Vec<InstructionDiffRow>)> {
+    let left_ops = left_insts.iter().map(|i| i.opcode).collect::<Vec<_>>();
+    let right_ops = right_insts.iter().map(|i| i.opcode).collect::<Vec<_>>();
+    let ops = similar::capture_diff_slices(similar::Algorithm::Patience, &left_ops, &right_ops);
     if ops.is_empty() {
-        left_diff.extend(
-            left_code
-                .insts
-                .iter()
-                .map(|i| ObjInsDiff { ins: Some(i.clone()), ..Default::default() }),
-        );
-        right_diff.extend(
-            right_code
-                .insts
-                .iter()
-                .map(|i| ObjInsDiff { ins: Some(i.clone()), ..Default::default() }),
-        );
-        return Ok(());
+        ensure!(left_insts.len() == right_insts.len());
+        let left_diff = left_insts
+            .iter()
+            .map(|i| InstructionDiffRow { ins_ref: Some(*i), ..Default::default() })
+            .collect();
+        let right_diff = right_insts
+            .iter()
+            .map(|i| InstructionDiffRow { ins_ref: Some(*i), ..Default::default() })
+            .collect();
+        return Ok((left_diff, right_diff));
     }
 
+    let row_count = ops
+        .iter()
+        .map(|op| match *op {
+            similar::DiffOp::Equal { len, .. } => len,
+            similar::DiffOp::Delete { old_len, .. } => old_len,
+            similar::DiffOp::Insert { new_len, .. } => new_len,
+            similar::DiffOp::Replace { old_len, new_len, .. } => old_len.max(new_len),
+        })
+        .sum();
+    let mut left_diff = Vec::<InstructionDiffRow>::with_capacity(row_count);
+    let mut right_diff = Vec::<InstructionDiffRow>::with_capacity(row_count);
     for op in ops {
         let (_tag, left_range, right_range) = op.as_tag_tuple();
-        let len = max(left_range.len(), right_range.len());
+        let len = left_range.len().max(right_range.len());
         left_diff.extend(
-            left_code.insts[left_range.clone()]
-                .iter()
-                .map(|i| ObjInsDiff { ins: Some(i.clone()), ..Default::default() }),
+            left_range
+                .clone()
+                .map(|i| InstructionDiffRow { ins_ref: Some(left_insts[i]), ..Default::default() }),
         );
         right_diff.extend(
-            right_code.insts[right_range.clone()]
-                .iter()
-                .map(|i| ObjInsDiff { ins: Some(i.clone()), ..Default::default() }),
+            right_range.clone().map(|i| InstructionDiffRow {
+                ins_ref: Some(right_insts[i]),
+                ..Default::default()
+            }),
         );
         if left_range.len() < len {
-            left_diff.extend((left_range.len()..len).map(|_| ObjInsDiff::default()));
+            left_diff.extend((left_range.len()..len).map(|_| InstructionDiffRow::default()));
         }
         if right_range.len() < len {
-            right_diff.extend((right_range.len()..len).map(|_| ObjInsDiff::default()));
+            right_diff.extend((right_range.len()..len).map(|_| InstructionDiffRow::default()));
         }
     }
-
-    Ok(())
+    Ok((left_diff, right_diff))
 }
 
-fn resolve_branches(vec: &mut [ObjInsDiff]) {
-    let mut branch_idx = 0usize;
+fn arg_to_string(arg: &InstructionArg, reloc: Option<ResolvedRelocation>) -> String {
+    match arg {
+        InstructionArg::Value(arg) => arg.to_string(),
+        InstructionArg::Reloc => {
+            reloc.as_ref().map_or_else(|| "<unknown>".to_string(), |r| r.symbol.name.clone())
+        }
+        InstructionArg::BranchDest(arg) => arg.to_string(),
+    }
+}
+
+fn resolve_branches(ops: &[InstructionRef], rows: &mut [InstructionDiffRow]) {
+    let mut branch_idx = 0u32;
     // Map addresses to indices
-    let mut addr_map = BTreeMap::<u64, usize>::new();
-    for (i, ins_diff) in vec.iter().enumerate() {
-        if let Some(ins) = &ins_diff.ins {
-            addr_map.insert(ins.address, i);
+    let mut addr_map = BTreeMap::<u64, u32>::new();
+    for (i, ins_diff) in rows.iter().enumerate() {
+        if let Some(ins) = ins_diff.ins_ref {
+            addr_map.insert(ins.address, i as u32);
         }
     }
     // Generate branches
-    let mut branches = BTreeMap::<usize, ObjInsBranchFrom>::new();
-    for (i, ins_diff) in vec.iter_mut().enumerate() {
-        if let Some(ins) = &ins_diff.ins {
-            if let Some(ins_idx) = ins.branch_dest.and_then(|a| addr_map.get(&a)) {
-                if let Some(branch) = branches.get_mut(ins_idx) {
-                    ins_diff.branch_to =
-                        Some(ObjInsBranchTo { ins_idx: *ins_idx, branch_idx: branch.branch_idx });
-                    branch.ins_idx.push(i);
-                } else {
-                    ins_diff.branch_to = Some(ObjInsBranchTo { ins_idx: *ins_idx, branch_idx });
-                    branches.insert(*ins_idx, ObjInsBranchFrom { ins_idx: vec![i], branch_idx });
+    let mut branches = BTreeMap::<u32, InstructionBranchFrom>::new();
+    for ((i, ins_diff), ins) in
+        rows.iter_mut().enumerate().filter(|(_, row)| row.ins_ref.is_some()).zip(ops)
+    {
+        if let Some(ins_idx) = ins.branch_dest.and_then(|a| addr_map.get(&a).copied()) {
+            match branches.entry(ins_idx) {
+                btree_map::Entry::Vacant(e) => {
+                    ins_diff.branch_to = Some(InstructionBranchTo { ins_idx, branch_idx });
+                    e.insert(InstructionBranchFrom { ins_idx: vec![i as u32], branch_idx });
                     branch_idx += 1;
                 }
+                btree_map::Entry::Occupied(e) => {
+                    let branch = e.into_mut();
+                    ins_diff.branch_to =
+                        Some(InstructionBranchTo { ins_idx, branch_idx: branch.branch_idx });
+                    branch.ins_idx.push(i as u32);
+                }
             }
         }
     }
     // Store branch from
     for (i, branch) in branches {
-        vec[i].branch_from = Some(branch);
+        rows[i as usize].branch_from = Some(branch);
     }
 }
 
-fn address_eq(left: &ObjReloc, right: &ObjReloc) -> bool {
-    left.target.address as i64 + left.addend == right.target.address as i64 + right.addend
+pub(crate) fn address_eq(left: ResolvedRelocation, right: ResolvedRelocation) -> bool {
+    if right.symbol.size == 0 && left.symbol.size != 0 {
+        // The base relocation is against a pool but the target relocation isn't.
+        // This can happen in rare cases where the compiler will generate a pool+addend relocation
+        // in the base's data, but the one detected in the target is direct with no addend.
+        // Just check that the final address is the same so these count as a match.
+        left.symbol.address as i64 + left.relocation.addend
+            == right.symbol.address as i64 + right.relocation.addend
+    } else {
+        // But otherwise, if the compiler isn't using a pool, we're more strict and check that the
+        // target symbol address and relocation addend both match exactly.
+        left.symbol.address == right.symbol.address
+            && left.relocation.addend == right.relocation.addend
+    }
 }
 
-pub fn section_name_eq(
-    left_obj: &ObjInfo,
-    right_obj: &ObjInfo,
-    left_orig_section_index: usize,
-    right_orig_section_index: usize,
+pub(crate) fn section_name_eq(
+    left_obj: &Object,
+    right_obj: &Object,
+    left_section_index: usize,
+    right_section_index: usize,
 ) -> bool {
-    let Some(left_section) =
-        left_obj.sections.iter().find(|s| s.orig_index == left_orig_section_index)
-    else {
-        return false;
-    };
-    let Some(right_section) =
-        right_obj.sections.iter().find(|s| s.orig_index == right_orig_section_index)
-    else {
-        return false;
-    };
-    left_section.name == right_section.name
+    left_obj.sections.get(left_section_index).is_some_and(|left_section| {
+        right_obj
+            .sections
+            .get(right_section_index)
+            .is_some_and(|right_section| left_section.name == right_section.name)
+    })
 }
 
 fn reloc_eq(
-    config: &DiffObjConfig,
-    left_obj: &ObjInfo,
-    right_obj: &ObjInfo,
-    left_ins: Option<&ObjIns>,
-    right_ins: Option<&ObjIns>,
+    left_obj: &Object,
+    right_obj: &Object,
+    left_ins: ResolvedInstructionRef,
+    right_ins: ResolvedInstructionRef,
+    diff_config: &DiffObjConfig,
 ) -> bool {
-    let (Some(left_ins), Some(right_ins)) = (left_ins, right_ins) else {
-        return false;
+    let relax_reloc_diffs = diff_config.function_reloc_diffs == FunctionRelocDiffs::None;
+    let (left_reloc, right_reloc) = match (left_ins.relocation, right_ins.relocation) {
+        (Some(left_reloc), Some(right_reloc)) => (left_reloc, right_reloc),
+        // If relocations are relaxed, match if left is missing a reloc
+        (None, Some(_)) => return relax_reloc_diffs,
+        (None, None) => return true,
+        _ => return false,
     };
-    let (Some(left), Some(right)) = (&left_ins.reloc, &right_ins.reloc) else {
-        return false;
-    };
-    if left.flags != right.flags {
+    if left_reloc.relocation.flags != right_reloc.relocation.flags {
         return false;
     }
-    if config.function_reloc_diffs == FunctionRelocDiffs::None {
+    if relax_reloc_diffs {
         return true;
     }
 
-    let symbol_name_matches = left.target.name == right.target.name;
-    match (&left.target.orig_section_index, &right.target.orig_section_index) {
+    let symbol_name_addend_matches = left_reloc.symbol.name == right_reloc.symbol.name
+        && left_reloc.relocation.addend == right_reloc.relocation.addend;
+    match (&left_reloc.symbol.section, &right_reloc.symbol.section) {
         (Some(sl), Some(sr)) => {
             // Match if section and name or address match
             section_name_eq(left_obj, right_obj, *sl, *sr)
-                && (config.function_reloc_diffs == FunctionRelocDiffs::DataValue
-                    || symbol_name_matches
-                    || address_eq(left, right))
-                && (config.function_reloc_diffs == FunctionRelocDiffs::NameAddress
-                    || left.target.kind != ObjSymbolKind::Object
-                    || left_obj.arch.display_ins_data(left_ins)
-                        == left_obj.arch.display_ins_data(right_ins))
+                && (diff_config.function_reloc_diffs == FunctionRelocDiffs::DataValue
+                    || symbol_name_addend_matches
+                    || address_eq(left_reloc, right_reloc))
+                && (diff_config.function_reloc_diffs == FunctionRelocDiffs::NameAddress
+                    || left_reloc.symbol.kind != SymbolKind::Object
+                    || right_reloc.symbol.size == 0 // Likely a pool symbol like ...data, don't treat this as a diff
+                    || display_ins_data_literals(left_obj, left_ins)
+                        == display_ins_data_literals(right_obj, right_ins))
         }
-        (Some(_), None) => false,
         (None, Some(_)) => {
             // Match if possibly stripped weak symbol
-            symbol_name_matches && right.target.flags.0.contains(ObjSymbolFlags::Weak)
+            symbol_name_addend_matches && right_reloc.symbol.flags.contains(SymbolFlag::Weak)
         }
-        (None, None) => symbol_name_matches,
+        (Some(_), None) | (None, None) => symbol_name_addend_matches,
     }
 }
 
 fn arg_eq(
-    config: &DiffObjConfig,
-    left_obj: &ObjInfo,
-    right_obj: &ObjInfo,
-    left: &ObjInsArg,
-    right: &ObjInsArg,
-    left_diff: &ObjInsDiff,
-    right_diff: &ObjInsDiff,
+    left_obj: &Object,
+    right_obj: &Object,
+    left_row: &InstructionDiffRow,
+    right_row: &InstructionDiffRow,
+    left_arg: &InstructionArg,
+    right_arg: &InstructionArg,
+    left_ins: ResolvedInstructionRef,
+    right_ins: ResolvedInstructionRef,
+    diff_config: &DiffObjConfig,
 ) -> bool {
-    match left {
-        ObjInsArg::PlainText(l) => match right {
-            ObjInsArg::PlainText(r) => l == r,
-            _ => false,
-        },
-        ObjInsArg::Arg(l) => match right {
-            ObjInsArg::Arg(r) => l.loose_eq(r),
+    match left_arg {
+        InstructionArg::Value(l) => match right_arg {
+            InstructionArg::Value(r) => l.loose_eq(r),
             // If relocations are relaxed, match if left is a constant and right is a reloc
             // Useful for instances where the target object is created without relocations
-            ObjInsArg::Reloc => config.function_reloc_diffs == FunctionRelocDiffs::None,
+            InstructionArg::Reloc => diff_config.function_reloc_diffs == FunctionRelocDiffs::None,
             _ => false,
         },
-        ObjInsArg::Reloc => {
-            matches!(right, ObjInsArg::Reloc)
-                && reloc_eq(
-                    config,
-                    left_obj,
-                    right_obj,
-                    left_diff.ins.as_ref(),
-                    right_diff.ins.as_ref(),
-                )
+        InstructionArg::Reloc => {
+            matches!(right_arg, InstructionArg::Reloc)
+                && reloc_eq(left_obj, right_obj, left_ins, right_ins, diff_config)
         }
-        ObjInsArg::BranchDest(_) => match right {
+        InstructionArg::BranchDest(_) => match right_arg {
             // Compare dest instruction idx after diffing
-            ObjInsArg::BranchDest(_) => {
-                left_diff.branch_to.as_ref().map(|b| b.ins_idx)
-                    == right_diff.branch_to.as_ref().map(|b| b.ins_idx)
+            InstructionArg::BranchDest(_) => {
+                left_row.branch_to.as_ref().map(|b| b.ins_idx)
+                    == right_row.branch_to.as_ref().map(|b| b.ins_idx)
             }
             // If relocations are relaxed, match if left is a constant and right is a reloc
             // Useful for instances where the target object is created without relocations
-            ObjInsArg::Reloc => config.function_reloc_diffs == FunctionRelocDiffs::None,
+            InstructionArg::Reloc => diff_config.function_reloc_diffs == FunctionRelocDiffs::None,
             _ => false,
         },
     }
 }
 
 #[derive(Default)]
-struct InsDiffState {
-    diff_count: usize,
-    left_arg_idx: usize,
-    right_arg_idx: usize,
-    left_args_idx: BTreeMap<String, usize>,
-    right_args_idx: BTreeMap<String, usize>,
+struct InstructionDiffState {
+    diff_score: u64,
+    left_arg_idx: u32,
+    right_arg_idx: u32,
+    left_args_idx: BTreeMap<String, u32>,
+    right_args_idx: BTreeMap<String, u32>,
 }
 
 #[derive(Default)]
-struct InsDiffResult {
-    kind: ObjInsDiffKind,
-    left_args_diff: Vec<Option<ObjInsArgDiff>>,
-    right_args_diff: Vec<Option<ObjInsArgDiff>>,
+struct InstructionDiffResult {
+    kind: InstructionDiffKind,
+    left_args_diff: Vec<InstructionArgDiffIndex>,
+    right_args_diff: Vec<InstructionArgDiffIndex>,
 }
 
-fn compare_ins(
-    config: &DiffObjConfig,
-    left_obj: &ObjInfo,
-    right_obj: &ObjInfo,
-    left: &ObjInsDiff,
-    right: &ObjInsDiff,
-    state: &mut InsDiffState,
-) -> Result<InsDiffResult> {
-    let mut result = InsDiffResult::default();
-    if let (Some(left_ins), Some(right_ins)) = (&left.ins, &right.ins) {
-        // Count only non-PlainText args
-        let left_args_count = left_ins.iter_args().count();
-        let right_args_count = right_ins.iter_args().count();
-        if left_args_count != right_args_count || left_ins.op != right_ins.op {
-            // Totally different op
-            result.kind = ObjInsDiffKind::Replace;
-            state.diff_count += 1;
-            return Ok(result);
+impl InstructionDiffResult {
+    #[inline]
+    const fn new(kind: InstructionDiffKind) -> Self {
+        Self { kind, left_args_diff: Vec::new(), right_args_diff: Vec::new() }
+    }
+}
+
+fn diff_instruction(
+    left_obj: &Object,
+    right_obj: &Object,
+    left_symbol_idx: usize,
+    right_symbol_idx: usize,
+    l: Option<InstructionRef>,
+    r: Option<InstructionRef>,
+    left_row: &InstructionDiffRow,
+    right_row: &InstructionDiffRow,
+    diff_config: &DiffObjConfig,
+    state: &mut InstructionDiffState,
+) -> Result<InstructionDiffResult> {
+    let (l, r) = match (l, r) {
+        (Some(l), Some(r)) => (l, r),
+        (Some(_), None) => {
+            state.diff_score += PENALTY_INSERT_DELETE;
+            return Ok(InstructionDiffResult::new(InstructionDiffKind::Delete));
         }
+        (None, Some(_)) => {
+            state.diff_score += PENALTY_INSERT_DELETE;
+            return Ok(InstructionDiffResult::new(InstructionDiffKind::Insert));
+        }
+        (None, None) => return Ok(InstructionDiffResult::new(InstructionDiffKind::None)),
+    };
+
+    // If opcodes don't match, replace
+    if l.opcode != r.opcode {
+        state.diff_score += PENALTY_REPLACE;
+        return Ok(InstructionDiffResult::new(InstructionDiffKind::Replace));
+    }
+
+    let left_resolved = left_obj
+        .resolve_instruction_ref(left_symbol_idx, l)
+        .context("Failed to resolve left instruction")?;
+    let right_resolved = right_obj
+        .resolve_instruction_ref(right_symbol_idx, r)
+        .context("Failed to resolve right instruction")?;
+
+    if left_resolved.code != right_resolved.code
+        || !reloc_eq(left_obj, right_obj, left_resolved, right_resolved, diff_config)
+    {
+        // If either the raw code bytes or relocations don't match, process instructions and compare args
+        let left_ins = left_obj.arch.process_instruction(left_resolved, diff_config)?;
+        let right_ins = right_obj.arch.process_instruction(right_resolved, diff_config)?;
+        if left_ins.args.len() != right_ins.args.len() {
+            state.diff_score += PENALTY_REPLACE;
+            return Ok(InstructionDiffResult::new(InstructionDiffKind::Replace));
+        }
+        let mut result = InstructionDiffResult::new(InstructionDiffKind::None);
         if left_ins.mnemonic != right_ins.mnemonic {
-            // Same op but different mnemonic, still cmp args
-            result.kind = ObjInsDiffKind::OpMismatch;
-            state.diff_count += 1;
+            state.diff_score += PENALTY_REG_DIFF;
+            result.kind = InstructionDiffKind::OpMismatch;
         }
-        for (a, b) in left_ins.iter_args().zip(right_ins.iter_args()) {
-            if arg_eq(config, left_obj, right_obj, a, b, left, right) {
-                result.left_args_diff.push(None);
-                result.right_args_diff.push(None);
+        for (a, b) in left_ins.args.iter().zip(right_ins.args.iter()) {
+            if arg_eq(
+                left_obj,
+                right_obj,
+                left_row,
+                right_row,
+                a,
+                b,
+                left_resolved,
+                right_resolved,
+                diff_config,
+            ) {
+                result.left_args_diff.push(InstructionArgDiffIndex::NONE);
+                result.right_args_diff.push(InstructionArgDiffIndex::NONE);
             } else {
-                if result.kind == ObjInsDiffKind::None {
-                    result.kind = ObjInsDiffKind::ArgMismatch;
-                    state.diff_count += 1;
+                state.diff_score += if let InstructionArg::Value(
+                    InstructionArgValue::Signed(_) | InstructionArgValue::Unsigned(_),
+                ) = a
+                {
+                    PENALTY_IMM_DIFF
+                } else {
+                    PENALTY_REG_DIFF
+                };
+                if result.kind == InstructionDiffKind::None {
+                    result.kind = InstructionDiffKind::ArgMismatch;
                 }
-                let a_str = match a {
-                    ObjInsArg::PlainText(arg) => arg.to_string(),
-                    ObjInsArg::Arg(arg) => arg.to_string(),
-                    ObjInsArg::Reloc => left_ins
-                        .reloc
-                        .as_ref()
-                        .map_or_else(|| "<unknown>".to_string(), |r| r.target.name.clone()),
-                    ObjInsArg::BranchDest(arg) => arg.to_string(),
+                let a_str = arg_to_string(a, left_resolved.relocation);
+                let a_diff = match state.left_args_idx.entry(a_str) {
+                    btree_map::Entry::Vacant(e) => {
+                        let idx = state.left_arg_idx;
+                        state.left_arg_idx = idx + 1;
+                        e.insert(idx);
+                        idx
+                    }
+                    btree_map::Entry::Occupied(e) => *e.get(),
                 };
-                let a_diff = if let Some(idx) = state.left_args_idx.get(&a_str) {
-                    ObjInsArgDiff { idx: *idx }
-                } else {
-                    let idx = state.left_arg_idx;
-                    state.left_args_idx.insert(a_str, idx);
-                    state.left_arg_idx += 1;
-                    ObjInsArgDiff { idx }
+                let b_str = arg_to_string(b, right_resolved.relocation);
+                let b_diff = match state.right_args_idx.entry(b_str) {
+                    btree_map::Entry::Vacant(e) => {
+                        let idx = state.right_arg_idx;
+                        state.right_arg_idx = idx + 1;
+                        e.insert(idx);
+                        idx
+                    }
+                    btree_map::Entry::Occupied(e) => *e.get(),
                 };
-                let b_str = match b {
-                    ObjInsArg::PlainText(arg) => arg.to_string(),
-                    ObjInsArg::Arg(arg) => arg.to_string(),
-                    ObjInsArg::Reloc => right_ins
-                        .reloc
-                        .as_ref()
-                        .map_or_else(|| "<unknown>".to_string(), |r| r.target.name.clone()),
-                    ObjInsArg::BranchDest(arg) => arg.to_string(),
-                };
-                let b_diff = if let Some(idx) = state.right_args_idx.get(&b_str) {
-                    ObjInsArgDiff { idx: *idx }
-                } else {
-                    let idx = state.right_arg_idx;
-                    state.right_args_idx.insert(b_str, idx);
-                    state.right_arg_idx += 1;
-                    ObjInsArgDiff { idx }
-                };
-                result.left_args_diff.push(Some(a_diff));
-                result.right_args_diff.push(Some(b_diff));
+                result.left_args_diff.push(InstructionArgDiffIndex::new(a_diff));
+                result.right_args_diff.push(InstructionArgDiffIndex::new(b_diff));
             }
         }
-    } else if left.ins.is_some() {
-        result.kind = ObjInsDiffKind::Delete;
-        state.diff_count += 1;
-    } else {
-        result.kind = ObjInsDiffKind::Insert;
-        state.diff_count += 1;
+        return Ok(result);
     }
-    Ok(result)
-}
 
-fn find_symbol_matching_fake_symbol_in_sections(
-    fake_symbol: &ObjSymbol,
-    sections: &[ObjSection],
-) -> Option<ObjSymbol> {
-    let orig_section_index = fake_symbol.orig_section_index?;
-    let section = sections.iter().find(|s| s.orig_index == orig_section_index)?;
-    let real_symbol = section
-        .symbols
-        .iter()
-        .find(|s| s.size > 0 && (s.address..s.address + s.size).contains(&fake_symbol.address))?;
-    Some(real_symbol.clone())
+    Ok(InstructionDiffResult::new(InstructionDiffKind::None))
 }

objdiff-core/src/diff/data.rs

@@ -1,138 +1,124 @@
-use std::{
-    cmp::{max, min, Ordering},
-    ops::Range,
-};
+use alloc::{vec, vec::Vec};
+use core::{cmp::Ordering, ops::Range};
 
-use anyhow::{anyhow, Result};
-use similar::{capture_diff_slices_deadline, get_diff_ratio, Algorithm};
+use anyhow::{Result, anyhow};
+use similar::{Algorithm, capture_diff_slices, get_diff_ratio};
 
-use super::code::section_name_eq;
-use crate::{
-    diff::{ObjDataDiff, ObjDataDiffKind, ObjDataRelocDiff, ObjSectionDiff, ObjSymbolDiff},
-    obj::{ObjInfo, ObjReloc, ObjSection, ObjSymbolFlags, SymbolRef},
+use super::{
+    DataDiff, DataDiffKind, DataRelocationDiff, ObjectDiff, SectionDiff, SymbolDiff,
+    code::{address_eq, section_name_eq},
 };
+use crate::obj::{Object, Relocation, ResolvedRelocation, Symbol, SymbolFlag, SymbolKind};
 
 pub fn diff_bss_symbol(
-    left_obj: &ObjInfo,
-    right_obj: &ObjInfo,
-    left_symbol_ref: SymbolRef,
-    right_symbol_ref: SymbolRef,
-) -> Result<(ObjSymbolDiff, ObjSymbolDiff)> {
-    let (_, left_symbol) = left_obj.section_symbol(left_symbol_ref);
-    let (_, right_symbol) = right_obj.section_symbol(right_symbol_ref);
+    left_obj: &Object,
+    right_obj: &Object,
+    left_symbol_ref: usize,
+    right_symbol_ref: usize,
+) -> Result<(SymbolDiff, SymbolDiff)> {
+    let left_symbol = &left_obj.symbols[left_symbol_ref];
+    let right_symbol = &right_obj.symbols[right_symbol_ref];
     let percent = if left_symbol.size == right_symbol.size { 100.0 } else { 50.0 };
     Ok((
-        ObjSymbolDiff {
-            symbol_ref: left_symbol_ref,
+        SymbolDiff {
             target_symbol: Some(right_symbol_ref),
-            instructions: vec![],
             match_percent: Some(percent),
+            diff_score: None,
+            instruction_rows: vec![],
         },
-        ObjSymbolDiff {
-            symbol_ref: right_symbol_ref,
+        SymbolDiff {
             target_symbol: Some(left_symbol_ref),
-            instructions: vec![],
             match_percent: Some(percent),
+            diff_score: None,
+            instruction_rows: vec![],
         },
     ))
 }
 
-pub fn no_diff_symbol(_obj: &ObjInfo, symbol_ref: SymbolRef) -> ObjSymbolDiff {
-    ObjSymbolDiff { symbol_ref, target_symbol: None, instructions: vec![], match_percent: None }
-}
-
-fn address_eq(left: &ObjReloc, right: &ObjReloc) -> bool {
-    if right.target.size == 0 && left.target.size != 0 {
-        // The base relocation is against a pool but the target relocation isn't.
-        // This can happen in rare cases where the compiler will generate a pool+addend relocation
-        // in the base, but the one detected in the target is direct with no addend.
-        // Just check that the final address is the same so these count as a match.
-        left.target.address as i64 + left.addend == right.target.address as i64 + right.addend
-    } else {
-        // But otherwise, if the compiler isn't using a pool, we're more strict and check that the
-        // target symbol address and relocation addend both match exactly.
-        left.target.address == right.target.address && left.addend == right.addend
-    }
-}
-
-fn reloc_eq(left_obj: &ObjInfo, right_obj: &ObjInfo, left: &ObjReloc, right: &ObjReloc) -> bool {
-    if left.flags != right.flags {
+fn reloc_eq(
+    left_obj: &Object,
+    right_obj: &Object,
+    left: ResolvedRelocation,
+    right: ResolvedRelocation,
+) -> bool {
+    if left.relocation.flags != right.relocation.flags {
         return false;
     }
 
-    let symbol_name_matches = left.target.name == right.target.name;
-    match (&left.target.orig_section_index, &right.target.orig_section_index) {
+    let symbol_name_addend_matches =
+        left.symbol.name == right.symbol.name && left.relocation.addend == right.relocation.addend;
+    match (left.symbol.section, right.symbol.section) {
         (Some(sl), Some(sr)) => {
             // Match if section and name+addend or address match
-            section_name_eq(left_obj, right_obj, *sl, *sr)
-                && ((symbol_name_matches && left.addend == right.addend) || address_eq(left, right))
+            section_name_eq(left_obj, right_obj, sl, sr)
+                && (symbol_name_addend_matches || address_eq(left, right))
         }
-        (Some(_), None) => false,
         (None, Some(_)) => {
             // Match if possibly stripped weak symbol
-            (symbol_name_matches && left.addend == right.addend)
-                && right.target.flags.0.contains(ObjSymbolFlags::Weak)
+            symbol_name_addend_matches && right.symbol.flags.contains(SymbolFlag::Weak)
         }
-        (None, None) => symbol_name_matches,
+        (Some(_), None) | (None, None) => symbol_name_addend_matches,
     }
 }
 
+#[inline]
+pub fn resolve_relocation<'obj>(
+    symbols: &'obj [Symbol],
+    reloc: &'obj Relocation,
+) -> ResolvedRelocation<'obj> {
+    let symbol = &symbols[reloc.target_symbol];
+    ResolvedRelocation { relocation: reloc, symbol }
+}
+
 /// Compares relocations contained with a certain data range.
-/// The ObjDataDiffKind for each diff will either be `None`` (if the relocation matches),
-/// or `Replace` (if a relocation was changed, added, or removed).
-/// `Insert` and `Delete` are not used when a relocation is added or removed to avoid confusing diffs
-/// where it looks like the bytes themselves were changed but actually only the relocations changed.
-fn diff_data_relocs_for_range(
-    left_obj: &ObjInfo,
-    right_obj: &ObjInfo,
-    left: &ObjSection,
-    right: &ObjSection,
+fn diff_data_relocs_for_range<'left, 'right>(
+    left_obj: &'left Object,
+    right_obj: &'right Object,
+    left_section_idx: usize,
+    right_section_idx: usize,
     left_range: Range<usize>,
     right_range: Range<usize>,
-) -> Vec<(ObjDataDiffKind, Option<ObjReloc>, Option<ObjReloc>)> {
+) -> Vec<(DataDiffKind, Option<ResolvedRelocation<'left>>, Option<ResolvedRelocation<'right>>)> {
+    let left_section = &left_obj.sections[left_section_idx];
+    let right_section = &right_obj.sections[right_section_idx];
     let mut diffs = Vec::new();
-    for left_reloc in left.relocations.iter() {
+    for left_reloc in left_section.relocations.iter() {
         if !left_range.contains(&(left_reloc.address as usize)) {
             continue;
         }
         let left_offset = left_reloc.address as usize - left_range.start;
-        let Some(right_reloc) = right.relocations.iter().find(|r| {
+        let left_reloc = resolve_relocation(&left_obj.symbols, left_reloc);
+        let Some(right_reloc) = right_section.relocations.iter().find(|r| {
             if !right_range.contains(&(r.address as usize)) {
                 return false;
             }
             let right_offset = r.address as usize - right_range.start;
             right_offset == left_offset
         }) else {
-            diffs.push((ObjDataDiffKind::Delete, Some(left_reloc.clone()), None));
+            diffs.push((DataDiffKind::Delete, Some(left_reloc), None));
             continue;
         };
+        let right_reloc = resolve_relocation(&right_obj.symbols, right_reloc);
         if reloc_eq(left_obj, right_obj, left_reloc, right_reloc) {
-            diffs.push((
-                ObjDataDiffKind::None,
-                Some(left_reloc.clone()),
-                Some(right_reloc.clone()),
-            ));
+            diffs.push((DataDiffKind::None, Some(left_reloc), Some(right_reloc)));
         } else {
-            diffs.push((
-                ObjDataDiffKind::Replace,
-                Some(left_reloc.clone()),
-                Some(right_reloc.clone()),
-            ));
+            diffs.push((DataDiffKind::Replace, Some(left_reloc), Some(right_reloc)));
         }
     }
-    for right_reloc in right.relocations.iter() {
+    for right_reloc in right_section.relocations.iter() {
         if !right_range.contains(&(right_reloc.address as usize)) {
             continue;
         }
         let right_offset = right_reloc.address as usize - right_range.start;
-        let Some(_) = left.relocations.iter().find(|r| {
+        let right_reloc = resolve_relocation(&right_obj.symbols, right_reloc);
+        let Some(_) = left_section.relocations.iter().find(|r| {
             if !left_range.contains(&(r.address as usize)) {
                 return false;
             }
             let left_offset = r.address as usize - left_range.start;
             left_offset == right_offset
         }) else {
-            diffs.push((ObjDataDiffKind::Insert, None, Some(right_reloc.clone())));
+            diffs.push((DataDiffKind::Insert, None, Some(right_reloc)));
             continue;
         };
         // No need to check the cases for relocations being deleted or matching again.
@@ -141,83 +127,113 @@ fn diff_data_relocs_for_range(
     diffs
 }
 
+pub fn no_diff_data_section(obj: &Object, section_idx: usize) -> Result<SectionDiff> {
+    let section = &obj.sections[section_idx];
+    let len = section.data.len();
+    let data = &section.data[0..len];
+
+    let data_diff =
+        vec![DataDiff { data: data.to_vec(), kind: DataDiffKind::None, len, ..Default::default() }];
+
+    let mut reloc_diffs = Vec::new();
+    for reloc in section.relocations.iter() {
+        let reloc_len = obj.arch.data_reloc_size(reloc.flags);
+        let range = reloc.address as usize..reloc.address as usize + reloc_len;
+        reloc_diffs.push(DataRelocationDiff {
+            reloc: reloc.clone(),
+            kind: DataDiffKind::None,
+            range,
+        });
+    }
+
+    Ok(SectionDiff { match_percent: Some(0.0), data_diff, reloc_diff: reloc_diffs })
+}
+
 /// Compare the data sections of two object files.
 pub fn diff_data_section(
-    left_obj: &ObjInfo,
-    right_obj: &ObjInfo,
-    left: &ObjSection,
-    right: &ObjSection,
-    left_section_diff: &ObjSectionDiff,
-    right_section_diff: &ObjSectionDiff,
-) -> Result<(ObjSectionDiff, ObjSectionDiff)> {
-    let left_max =
-        left.symbols.iter().map(|s| s.section_address + s.size).max().unwrap_or(0).min(left.size);
-    let right_max =
-        right.symbols.iter().map(|s| s.section_address + s.size).max().unwrap_or(0).min(right.size);
-    let left_data = &left.data[..left_max as usize];
-    let right_data = &right.data[..right_max as usize];
-    let ops = capture_diff_slices_deadline(Algorithm::Patience, left_data, right_data, None);
+    left_obj: &Object,
+    right_obj: &Object,
+    left_diff: &ObjectDiff,
+    right_diff: &ObjectDiff,
+    left_section_idx: usize,
+    right_section_idx: usize,
+) -> Result<(SectionDiff, SectionDiff)> {
+    let left_section = &left_obj.sections[left_section_idx];
+    let right_section = &right_obj.sections[right_section_idx];
+    let left_max = symbols_matching_section(&left_obj.symbols, left_section_idx)
+        .filter_map(|(_, s)| s.address.checked_sub(left_section.address).map(|a| a + s.size))
+        .max()
+        .unwrap_or(0)
+        .min(left_section.size);
+    let right_max = symbols_matching_section(&right_obj.symbols, right_section_idx)
+        .filter_map(|(_, s)| s.address.checked_sub(right_section.address).map(|a| a + s.size))
+        .max()
+        .unwrap_or(0)
+        .min(right_section.size);
+    let left_data = &left_section.data[..left_max as usize];
+    let right_data = &right_section.data[..right_max as usize];
+    let ops = capture_diff_slices(Algorithm::Patience, left_data, right_data);
     let match_percent = get_diff_ratio(&ops, left_data.len(), right_data.len()) * 100.0;
 
-    let mut left_diff = Vec::<ObjDataDiff>::new();
-    let mut right_diff = Vec::<ObjDataDiff>::new();
+    let mut left_data_diff = Vec::<DataDiff>::new();
+    let mut right_data_diff = Vec::<DataDiff>::new();
     for op in ops {
         let (tag, left_range, right_range) = op.as_tag_tuple();
         let left_len = left_range.len();
         let right_len = right_range.len();
-        let mut len = max(left_len, right_len);
+        let mut len = left_len.max(right_len);
         let kind = match tag {
-            similar::DiffTag::Equal => ObjDataDiffKind::None,
-            similar::DiffTag::Delete => ObjDataDiffKind::Delete,
-            similar::DiffTag::Insert => ObjDataDiffKind::Insert,
+            similar::DiffTag::Equal => DataDiffKind::None,
+            similar::DiffTag::Delete => DataDiffKind::Delete,
+            similar::DiffTag::Insert => DataDiffKind::Insert,
             similar::DiffTag::Replace => {
                 // Ensure replacements are equal length
-                len = min(left_len, right_len);
-                ObjDataDiffKind::Replace
+                len = left_len.min(right_len);
+                DataDiffKind::Replace
             }
         };
-        let left_data = &left.data[left_range];
-        let right_data = &right.data[right_range];
-        left_diff.push(ObjDataDiff {
-            data: left_data[..min(len, left_data.len())].to_vec(),
+        let left_data = &left_section.data[left_range];
+        let right_data = &right_section.data[right_range];
+        left_data_diff.push(DataDiff {
+            data: left_data[..len.min(left_data.len())].to_vec(),
             kind,
             len,
             ..Default::default()
         });
-        right_diff.push(ObjDataDiff {
-            data: right_data[..min(len, right_data.len())].to_vec(),
+        right_data_diff.push(DataDiff {
+            data: right_data[..len.min(right_data.len())].to_vec(),
             kind,
             len,
             ..Default::default()
         });
-        if kind == ObjDataDiffKind::Replace {
+        if kind == DataDiffKind::Replace {
             match left_len.cmp(&right_len) {
                 Ordering::Less => {
                     let len = right_len - left_len;
-                    left_diff.push(ObjDataDiff {
+                    left_data_diff.push(DataDiff {
                         data: vec![],
-                        kind: ObjDataDiffKind::Insert,
+                        kind: DataDiffKind::Insert,
                         len,
                         ..Default::default()
                     });
-                    right_diff.push(ObjDataDiff {
+                    right_data_diff.push(DataDiff {
                         data: right_data[left_len..right_len].to_vec(),
-                        kind: ObjDataDiffKind::Insert,
+                        kind: DataDiffKind::Insert,
                         len,
                         ..Default::default()
                     });
                 }
                 Ordering::Greater => {
                     let len = left_len - right_len;
-                    left_diff.push(ObjDataDiff {
+                    left_data_diff.push(DataDiff {
                         data: left_data[right_len..left_len].to_vec(),
-                        kind: ObjDataDiffKind::Delete,
+                        kind: DataDiffKind::Delete,
                         len,
                         ..Default::default()
                     });
-                    right_diff.push(ObjDataDiff {
+                    right_data_diff.push(DataDiff {
                         data: vec![],
-                        kind: ObjDataDiffKind::Delete,
+                        kind: DataDiffKind::Delete,
                         len,
                         ..Default::default()
                     });
@@ -232,28 +248,44 @@ pub fn diff_data_section(
     for (diff_kind, left_reloc, right_reloc) in diff_data_relocs_for_range(
         left_obj,
         right_obj,
-        left,
-        right,
+        left_section_idx,
+        right_section_idx,
         0..left_max as usize,
         0..right_max as usize,
     ) {
         if let Some(left_reloc) = left_reloc {
-            let len = left_obj.arch.get_reloc_byte_size(left_reloc.flags);
-            let range = left_reloc.address as usize..left_reloc.address as usize + len;
-            left_reloc_diffs.push(ObjDataRelocDiff { reloc: left_reloc, kind: diff_kind, range });
+            let len = left_obj.arch.data_reloc_size(left_reloc.relocation.flags);
+            let range = left_reloc.relocation.address as usize
+                ..left_reloc.relocation.address as usize + len;
+            left_reloc_diffs.push(DataRelocationDiff {
+                reloc: left_reloc.relocation.clone(),
+                kind: diff_kind,
+                range,
+            });
         }
         if let Some(right_reloc) = right_reloc {
-            let len = right_obj.arch.get_reloc_byte_size(right_reloc.flags);
-            let range = right_reloc.address as usize..right_reloc.address as usize + len;
-            right_reloc_diffs.push(ObjDataRelocDiff { reloc: right_reloc, kind: diff_kind, range });
+            let len = right_obj.arch.data_reloc_size(right_reloc.relocation.flags);
+            let range = right_reloc.relocation.address as usize
+                ..right_reloc.relocation.address as usize + len;
+            right_reloc_diffs.push(DataRelocationDiff {
+                reloc: right_reloc.relocation.clone(),
+                kind: diff_kind,
+                range,
+            });
         }
     }
 
-    let (mut left_section_diff, mut right_section_diff) =
-        diff_generic_section(left, right, left_section_diff, right_section_diff)?;
-    let all_left_relocs_match = left_reloc_diffs.iter().all(|d| d.kind == ObjDataDiffKind::None);
-    left_section_diff.data_diff = left_diff;
-    right_section_diff.data_diff = right_diff;
+    let (mut left_section_diff, mut right_section_diff) = diff_generic_section(
+        left_obj,
+        right_obj,
+        left_diff,
+        right_diff,
+        left_section_idx,
+        right_section_idx,
+    )?;
+    let all_left_relocs_match = left_reloc_diffs.iter().all(|d| d.kind == DataDiffKind::None);
+    left_section_diff.data_diff = left_data_diff;
+    right_section_diff.data_diff = right_data_diff;
     left_section_diff.reloc_diff = left_reloc_diffs;
     right_section_diff.reloc_diff = right_reloc_diffs;
     if all_left_relocs_match {
@@ -263,41 +295,69 @@ pub fn diff_data_section(
         // We only do this when all relocations on the left side match.
         if left_section_diff.match_percent.unwrap_or(-1.0) < match_percent {
             left_section_diff.match_percent = Some(match_percent);
-            right_section_diff.match_percent = Some(match_percent);
         }
     }
     Ok((left_section_diff, right_section_diff))
 }
 
 pub fn diff_data_symbol(
-    left_obj: &ObjInfo,
-    right_obj: &ObjInfo,
-    left_symbol_ref: SymbolRef,
-    right_symbol_ref: SymbolRef,
-) -> Result<(ObjSymbolDiff, ObjSymbolDiff)> {
-    let (left_section, left_symbol) = left_obj.section_symbol(left_symbol_ref);
-    let (right_section, right_symbol) = right_obj.section_symbol(right_symbol_ref);
+    left_obj: &Object,
+    right_obj: &Object,
+    left_symbol_idx: usize,
+    right_symbol_idx: usize,
+) -> Result<(SymbolDiff, SymbolDiff)> {
+    let left_symbol = &left_obj.symbols[left_symbol_idx];
+    let right_symbol = &right_obj.symbols[right_symbol_idx];
 
-    let left_section = left_section.ok_or_else(|| anyhow!("Data symbol section not found"))?;
-    let right_section = right_section.ok_or_else(|| anyhow!("Data symbol section not found"))?;
+    let left_section_idx =
+        left_symbol.section.ok_or_else(|| anyhow!("Data symbol section not found"))?;
+    let right_section_idx =
+        right_symbol.section.ok_or_else(|| anyhow!("Data symbol section not found"))?;
 
-    let left_range = left_symbol.section_address as usize
-        ..(left_symbol.section_address + left_symbol.size) as usize;
-    let right_range = right_symbol.section_address as usize
-        ..(right_symbol.section_address + right_symbol.size) as usize;
+    let left_section = &left_obj.sections[left_section_idx];
+    let right_section = &right_obj.sections[right_section_idx];
+
+    let left_start = left_symbol
+        .address
+        .checked_sub(left_section.address)
+        .ok_or_else(|| anyhow!("Symbol address out of section bounds"))?;
+    let right_start = right_symbol
+        .address
+        .checked_sub(right_section.address)
+        .ok_or_else(|| anyhow!("Symbol address out of section bounds"))?;
+    let left_end = left_start + left_symbol.size;
+    if left_end > left_section.size {
+        return Err(anyhow!(
+            "Symbol {} size out of section bounds ({} > {})",
+            left_symbol.name,
+            left_end,
+            left_section.size
+        ));
+    }
+    let right_end = right_start + right_symbol.size;
+    if right_end > right_section.size {
+        return Err(anyhow!(
+            "Symbol {} size out of section bounds ({} > {})",
+            right_symbol.name,
+            right_end,
+            right_section.size
+        ));
+    }
+    let left_range = left_start as usize..left_end as usize;
+    let right_range = right_start as usize..right_end as usize;
     let left_data = &left_section.data[left_range.clone()];
     let right_data = &right_section.data[right_range.clone()];
 
     let reloc_diffs = diff_data_relocs_for_range(
         left_obj,
         right_obj,
-        left_section,
-        right_section,
+        left_section_idx,
+        right_section_idx,
         left_range,
         right_range,
     );
 
-    let ops = capture_diff_slices_deadline(Algorithm::Patience, left_data, right_data, None);
+    let ops = capture_diff_slices(Algorithm::Patience, left_data, right_data);
     let bytes_match_ratio = get_diff_ratio(&ops, left_data.len(), right_data.len());
 
     let mut match_ratio = bytes_match_ratio;
@@ -307,11 +367,13 @@ pub fn diff_data_symbol(
         for (diff_kind, left_reloc, right_reloc) in reloc_diffs {
             let reloc_diff_len = match (left_reloc, right_reloc) {
                 (None, None) => unreachable!(),
-                (None, Some(right_reloc)) => right_obj.arch.get_reloc_byte_size(right_reloc.flags),
-                (Some(left_reloc), _) => left_obj.arch.get_reloc_byte_size(left_reloc.flags),
+                (None, Some(right_reloc)) => {
+                    right_obj.arch.data_reloc_size(right_reloc.relocation.flags)
+                }
+                (Some(left_reloc), _) => left_obj.arch.data_reloc_size(left_reloc.relocation.flags),
             };
             total_reloc_bytes += reloc_diff_len;
-            if diff_kind == ObjDataDiffKind::None {
+            if diff_kind == DataDiffKind::None {
                 matching_reloc_bytes += reloc_diff_len;
             }
         }
@@ -331,17 +393,17 @@ pub fn diff_data_symbol(
     let match_percent = match_ratio * 100.0;
 
     Ok((
-        ObjSymbolDiff {
-            symbol_ref: left_symbol_ref,
-            target_symbol: Some(right_symbol_ref),
-            instructions: vec![],
+        SymbolDiff {
+            target_symbol: Some(right_symbol_idx),
             match_percent: Some(match_percent),
+            diff_score: None,
+            instruction_rows: vec![],
         },
-        ObjSymbolDiff {
-            symbol_ref: right_symbol_ref,
-            target_symbol: Some(left_symbol_ref),
-            instructions: vec![],
+        SymbolDiff {
+            target_symbol: Some(left_symbol_idx),
             match_percent: Some(match_percent),
+            diff_score: None,
+            instruction_rows: vec![],
         },
     ))
 }
@@ -349,69 +411,85 @@ pub fn diff_data_symbol(
 /// Compares a section of two object files.
 /// This essentially adds up the match percentage of each symbol in the section.
 pub fn diff_generic_section(
-    left: &ObjSection,
-    _right: &ObjSection,
-    left_diff: &ObjSectionDiff,
-    _right_diff: &ObjSectionDiff,
-) -> Result<(ObjSectionDiff, ObjSectionDiff)> {
-    let match_percent = if left_diff.symbols.iter().all(|d| d.match_percent == Some(100.0)) {
+    left_obj: &Object,
+    _right_obj: &Object,
+    left_diff: &ObjectDiff,
+    _right_diff: &ObjectDiff,
+    left_section_idx: usize,
+    _right_section_idx: usize,
+) -> Result<(SectionDiff, SectionDiff)> {
+    let match_percent = if symbols_matching_section(&left_obj.symbols, left_section_idx)
+        .map(|(i, _)| &left_diff.symbols[i])
+        .all(|d| d.match_percent == Some(100.0))
+    {
         100.0 // Avoid fp precision issues
     } else {
-        left.symbols
-            .iter()
-            .zip(left_diff.symbols.iter())
-            .map(|(s, d)| d.match_percent.unwrap_or(0.0) * s.size as f32)
-            .sum::<f32>()
-            / left.size as f32
+        let (matched, total) = symbols_matching_section(&left_obj.symbols, left_section_idx)
+            .map(|(i, s)| (s, &left_diff.symbols[i]))
+            .fold((0.0, 0.0), |(matched, total), (s, d)| {
+                (matched + d.match_percent.unwrap_or(0.0) * s.size as f32, total + s.size as f32)
+            });
+        if total == 0.0 { 100.0 } else { matched / total }
     };
     Ok((
-        ObjSectionDiff {
-            symbols: vec![],
-            data_diff: vec![],
-            reloc_diff: vec![],
-            match_percent: Some(match_percent),
-        },
-        ObjSectionDiff {
-            symbols: vec![],
-            data_diff: vec![],
-            reloc_diff: vec![],
-            match_percent: Some(match_percent),
-        },
+        SectionDiff { match_percent: Some(match_percent), data_diff: vec![], reloc_diff: vec![] },
+        SectionDiff { match_percent: None, data_diff: vec![], reloc_diff: vec![] },
     ))
 }
 
+pub fn no_diff_bss_section() -> Result<SectionDiff> {
+    Ok(SectionDiff { match_percent: Some(0.0), data_diff: vec![], reloc_diff: vec![] })
+}
+
 /// Compare the addresses and sizes of each symbol in the BSS sections.
 pub fn diff_bss_section(
-    left: &ObjSection,
-    right: &ObjSection,
-    left_diff: &ObjSectionDiff,
-    right_diff: &ObjSectionDiff,
-) -> Result<(ObjSectionDiff, ObjSectionDiff)> {
-    let left_sizes = left.symbols.iter().map(|s| (s.section_address, s.size)).collect::<Vec<_>>();
-    let right_sizes = right.symbols.iter().map(|s| (s.section_address, s.size)).collect::<Vec<_>>();
-    let ops = capture_diff_slices_deadline(Algorithm::Patience, &left_sizes, &right_sizes, None);
+    left_obj: &Object,
+    right_obj: &Object,
+    left_diff: &ObjectDiff,
+    right_diff: &ObjectDiff,
+    left_section_idx: usize,
+    right_section_idx: usize,
+) -> Result<(SectionDiff, SectionDiff)> {
+    let left_section = &left_obj.sections[left_section_idx];
+    let left_sizes = symbols_matching_section(&left_obj.symbols, left_section_idx)
+        .filter_map(|(_, s)| s.address.checked_sub(left_section.address).map(|a| (a, s.size)))
+        .collect::<Vec<_>>();
+    let right_section = &right_obj.sections[right_section_idx];
+    let right_sizes = symbols_matching_section(&right_obj.symbols, right_section_idx)
+        .filter_map(|(_, s)| s.address.checked_sub(right_section.address).map(|a| (a, s.size)))
+        .collect::<Vec<_>>();
+    let ops = capture_diff_slices(Algorithm::Patience, &left_sizes, &right_sizes);
     let mut match_percent = get_diff_ratio(&ops, left_sizes.len(), right_sizes.len()) * 100.0;
 
     // Use the highest match percent between two options:
     // - Left symbols matching right symbols by name
     // - Diff of the addresses and sizes of each symbol
-    let (generic_diff, _) = diff_generic_section(left, right, left_diff, right_diff)?;
+    let (generic_diff, _) = diff_generic_section(
+        left_obj,
+        right_obj,
+        left_diff,
+        right_diff,
+        left_section_idx,
+        right_section_idx,
+    )?;
     if generic_diff.match_percent.unwrap_or(-1.0) > match_percent {
         match_percent = generic_diff.match_percent.unwrap();
     }
 
     Ok((
-        ObjSectionDiff {
-            symbols: vec![],
-            data_diff: vec![],
-            reloc_diff: vec![],
-            match_percent: Some(match_percent),
-        },
-        ObjSectionDiff {
-            symbols: vec![],
-            data_diff: vec![],
-            reloc_diff: vec![],
-            match_percent: Some(match_percent),
-        },
+        SectionDiff { match_percent: Some(match_percent), data_diff: vec![], reloc_diff: vec![] },
+        SectionDiff { match_percent: None, data_diff: vec![], reloc_diff: vec![] },
     ))
 }
+
+fn symbols_matching_section(
+    symbols: &[Symbol],
+    section_idx: usize,
+) -> impl Iterator<Item = (usize, &Symbol)> + '_ {
+    symbols.iter().enumerate().filter(move |(_, s)| {
+        s.section == Some(section_idx)
+            && s.kind != SymbolKind::Section
+            && s.size > 0
+            && !s.flags.contains(SymbolFlag::Ignored)
+    })
+}

objdiff-core/src/diff/display.rs

@@ -1,16 +1,29 @@
-use std::cmp::Ordering;
+use alloc::{
+    borrow::Cow,
+    collections::BTreeSet,
+    format,
+    string::{String, ToString},
+    vec::Vec,
+};
+use core::cmp::Ordering;
+
+use anyhow::Result;
+use itertools::Itertools;
+use regex::Regex;
 
 use crate::{
-    diff::{ObjInsArgDiff, ObjInsDiff},
-    obj::{ObjInsArg, ObjInsArgValue, ObjReloc, ObjSymbol},
+    diff::{DiffObjConfig, InstructionDiffKind, InstructionDiffRow, ObjectDiff, SymbolDiff},
+    obj::{
+        FlowAnalysisValue, InstructionArg, InstructionArgValue, Object, ParsedInstruction,
+        ResolvedInstructionRef, ResolvedRelocation, SectionFlag, SectionKind, Symbol, SymbolFlag,
+        SymbolKind,
+    },
 };
 
-#[derive(Debug, Copy, Clone)]
+#[derive(Debug, Clone)]
 pub enum DiffText<'a> {
     /// Basic text
     Basic(&'a str),
-    /// Colored text
-    BasicColor(&'a str, usize),
     /// Line number
     Line(u32),
     /// Instruction address
@@ -18,91 +31,294 @@ pub enum DiffText<'a> {
     /// Instruction mnemonic
     Opcode(&'a str, u16),
     /// Instruction argument
-    Argument(&'a ObjInsArgValue, Option<&'a ObjInsArgDiff>),
+    Argument(InstructionArgValue<'a>),
     /// Branch destination
-    BranchDest(u64, Option<&'a ObjInsArgDiff>),
+    BranchDest(u64),
     /// Symbol name
-    Symbol(&'a ObjSymbol, Option<&'a ObjInsArgDiff>),
+    Symbol(&'a Symbol),
+    /// Relocation addend
+    Addend(i64),
     /// Number of spaces
-    Spacing(usize),
+    Spacing(u8),
     /// End of line
     Eol,
 }
 
-#[derive(Debug, Default, Clone, PartialEq, Eq)]
+#[derive(Debug, Copy, Clone, Default, PartialEq, Eq, Hash)]
+pub enum DiffTextColor {
+    #[default]
+    Normal, // Grey
+    Dim,      // Dark grey
+    Bright,   // White
+    DataFlow, // Light blue
+    Replace,  // Blue
+    Delete,   // Red
+    Insert,   // Green
+    Rotating(u8),
+}
+
+#[derive(Debug, Clone)]
+pub struct DiffTextSegment<'a> {
+    pub text: DiffText<'a>,
+    pub color: DiffTextColor,
+    pub pad_to: u8,
+}
+
+impl<'a> DiffTextSegment<'a> {
+    #[inline(always)]
+    pub fn basic(text: &'a str, color: DiffTextColor) -> Self {
+        Self { text: DiffText::Basic(text), color, pad_to: 0 }
+    }
+
+    #[inline(always)]
+    pub fn spacing(spaces: u8) -> Self {
+        Self { text: DiffText::Spacing(spaces), color: DiffTextColor::Normal, pad_to: 0 }
+    }
+}
+
+const EOL_SEGMENT: DiffTextSegment<'static> =
+    DiffTextSegment { text: DiffText::Eol, color: DiffTextColor::Normal, pad_to: 0 };
+
+#[derive(Debug, Default, Clone)]
 pub enum HighlightKind {
     #[default]
     None,
     Opcode(u16),
-    Arg(ObjInsArgValue),
+    Argument(InstructionArgValue<'static>),
     Symbol(String),
     Address(u64),
 }
 
-pub fn display_diff<E>(
-    ins_diff: &ObjInsDiff,
-    base_addr: u64,
-    mut cb: impl FnMut(DiffText) -> Result<(), E>,
-) -> Result<(), E> {
-    let Some(ins) = &ins_diff.ins else {
-        cb(DiffText::Eol)?;
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub enum InstructionPart<'a> {
+    Basic(Cow<'a, str>),
+    Opcode(Cow<'a, str>, u16),
+    Arg(InstructionArg<'a>),
+    Separator,
+}
+
+impl<'a> InstructionPart<'a> {
+    #[inline(always)]
+    pub fn basic<T>(s: T) -> Self
+    where T: Into<Cow<'a, str>> {
+        InstructionPart::Basic(s.into())
+    }
+
+    #[inline(always)]
+    pub fn opcode<T>(s: T, o: u16) -> Self
+    where T: Into<Cow<'a, str>> {
+        InstructionPart::Opcode(s.into(), o)
+    }
+
+    #[inline(always)]
+    pub fn opaque<T>(s: T) -> Self
+    where T: Into<Cow<'a, str>> {
+        InstructionPart::Arg(InstructionArg::Value(InstructionArgValue::Opaque(s.into())))
+    }
+
+    #[inline(always)]
+    pub fn signed<T>(v: T) -> InstructionPart<'static>
+    where T: Into<i64> {
+        InstructionPart::Arg(InstructionArg::Value(InstructionArgValue::Signed(v.into())))
+    }
+
+    #[inline(always)]
+    pub fn unsigned<T>(v: T) -> InstructionPart<'static>
+    where T: Into<u64> {
+        InstructionPart::Arg(InstructionArg::Value(InstructionArgValue::Unsigned(v.into())))
+    }
+
+    #[inline(always)]
+    pub fn branch_dest<T>(v: T) -> InstructionPart<'static>
+    where T: Into<u64> {
+        InstructionPart::Arg(InstructionArg::BranchDest(v.into()))
+    }
+
+    #[inline(always)]
+    pub fn reloc() -> InstructionPart<'static> { InstructionPart::Arg(InstructionArg::Reloc) }
+
+    #[inline(always)]
+    pub fn separator() -> InstructionPart<'static> { InstructionPart::Separator }
+
+    pub fn into_static(self) -> InstructionPart<'static> {
+        match self {
+            InstructionPart::Basic(s) => InstructionPart::Basic(Cow::Owned(s.into_owned())),
+            InstructionPart::Opcode(s, o) => InstructionPart::Opcode(Cow::Owned(s.into_owned()), o),
+            InstructionPart::Arg(a) => InstructionPart::Arg(a.into_static()),
+            InstructionPart::Separator => InstructionPart::Separator,
+        }
+    }
+}
+
+pub fn display_row(
+    obj: &Object,
+    symbol_index: usize,
+    ins_row: &InstructionDiffRow,
+    diff_config: &DiffObjConfig,
+    mut cb: impl FnMut(DiffTextSegment) -> Result<()>,
+) -> Result<()> {
+    let Some(ins_ref) = ins_row.ins_ref else {
+        cb(EOL_SEGMENT)?;
         return Ok(());
     };
-    if let Some(line) = ins.line {
-        cb(DiffText::Line(line))?;
+    let Some(resolved) = obj.resolve_instruction_ref(symbol_index, ins_ref) else {
+        cb(DiffTextSegment::basic("<invalid>", DiffTextColor::Delete))?;
+        cb(EOL_SEGMENT)?;
+        return Ok(());
+    };
+    let base_color = match ins_row.kind {
+        InstructionDiffKind::Replace => DiffTextColor::Replace,
+        InstructionDiffKind::Delete => DiffTextColor::Delete,
+        InstructionDiffKind::Insert => DiffTextColor::Insert,
+        _ => DiffTextColor::Normal,
+    };
+    if let Some(line) = resolved.section.line_info.range(..=ins_ref.address).last().map(|(_, &b)| b)
+    {
+        cb(DiffTextSegment { text: DiffText::Line(line), color: DiffTextColor::Dim, pad_to: 5 })?;
     }
-    cb(DiffText::Address(ins.address - base_addr))?;
-    if let Some(branch) = &ins_diff.branch_from {
-        cb(DiffText::BasicColor(" ~> ", branch.branch_idx))?;
+    cb(DiffTextSegment {
+        text: DiffText::Address(ins_ref.address.saturating_sub(resolved.symbol.address)),
+        color: base_color,
+        pad_to: 5,
+    })?;
+    if let Some(branch) = &ins_row.branch_from {
+        cb(DiffTextSegment::basic(" ~> ", DiffTextColor::Rotating(branch.branch_idx as u8)))?;
     } else {
-        cb(DiffText::Spacing(4))?;
+        cb(DiffTextSegment::spacing(4))?;
     }
-    cb(DiffText::Opcode(&ins.mnemonic, ins.op))?;
-    let mut arg_diff_idx = 0; // non-PlainText index
-    for (i, arg) in ins.args.iter().enumerate() {
-        if i == 0 {
-            cb(DiffText::Spacing(1))?;
+    let mut arg_idx = 0;
+    let mut displayed_relocation = false;
+    let analysis_result = if diff_config.show_data_flow {
+        obj.get_flow_analysis_result(resolved.symbol)
+    } else {
+        None
+    };
+    obj.arch.display_instruction(resolved, diff_config, &mut |part| match part {
+        InstructionPart::Basic(text) => {
+            if text.chars().all(|c| c == ' ') {
+                cb(DiffTextSegment::spacing(text.len() as u8))
+            } else {
+                cb(DiffTextSegment::basic(&text, base_color))
+            }
         }
-        let diff = ins_diff.arg_diff.get(arg_diff_idx).and_then(|o| o.as_ref());
-        match arg {
-            ObjInsArg::PlainText(s) => {
-                cb(DiffText::Basic(s))?;
+        InstructionPart::Opcode(mnemonic, opcode) => cb(DiffTextSegment {
+            text: DiffText::Opcode(mnemonic.as_ref(), opcode),
+            color: match ins_row.kind {
+                InstructionDiffKind::OpMismatch => DiffTextColor::Replace,
+                _ => base_color,
+            },
+            pad_to: 10,
+        }),
+        InstructionPart::Arg(arg) => {
+            let diff_index = ins_row.arg_diff.get(arg_idx).copied().unwrap_or_default();
+            arg_idx += 1;
+            if arg == InstructionArg::Reloc {
+                displayed_relocation = true;
             }
-            ObjInsArg::Arg(v) => {
-                cb(DiffText::Argument(v, diff))?;
-                arg_diff_idx += 1;
-            }
-            ObjInsArg::Reloc => {
-                display_reloc_name(ins.reloc.as_ref().unwrap(), &mut cb, diff)?;
-                arg_diff_idx += 1;
-            }
-            ObjInsArg::BranchDest(dest) => {
-                if let Some(dest) = dest.checked_sub(base_addr) {
-                    cb(DiffText::BranchDest(dest, diff))?;
-                } else {
-                    cb(DiffText::Basic("<unknown>"))?;
+            let data_flow_value =
+            analysis_result.and_then(|result|
+                result.get_argument_value_at_address(
+                    ins_ref.address, (arg_idx - 1) as u8));
+            match (arg, data_flow_value, resolved.ins_ref.branch_dest) {
+                // If we have a flow analysis result, always use that over anything else.
+                (InstructionArg::Value(_) | InstructionArg::Reloc, Some(FlowAnalysisValue::Text(text)), _) => {
+                    cb(DiffTextSegment {
+                        text: DiffText::Argument(InstructionArgValue::Opaque(Cow::Borrowed(text))),
+                        color: DiffTextColor::DataFlow,
+                        pad_to: 0,
+                    })
+                },
+                (InstructionArg::Value(value), None, _) => {
+                    let color = diff_index
+                        .get()
+                        .map_or(base_color, |i| DiffTextColor::Rotating(i as u8));
+                    cb(DiffTextSegment {
+                        text: DiffText::Argument(value),
+                        color,
+                        pad_to: 0,
+                    })
+                },
+                (InstructionArg::Reloc, _, None) => {
+                    let resolved = resolved.relocation.unwrap();
+                    let color = diff_index
+                        .get()
+                        .map_or(DiffTextColor::Bright, |i| DiffTextColor::Rotating(i as u8));
+                    cb(DiffTextSegment {
+                        text: DiffText::Symbol(resolved.symbol),
+                        color,
+                        pad_to: 0,
+                    })?;
+                    if resolved.relocation.addend != 0 {
+                        cb(DiffTextSegment {
+                            text: DiffText::Addend(resolved.relocation.addend),
+                            color,
+                            pad_to: 0,
+                        })?;
+                    }
+                    Ok(())
+                }
+                (InstructionArg::BranchDest(dest), _, _) |
+                // If the relocation was resolved to a branch destination, emit that instead.
+                (InstructionArg::Reloc, _, Some(dest))  => {
+                    if let Some(addr) = dest.checked_sub(resolved.symbol.address) {
+                        cb(DiffTextSegment {
+                            text: DiffText::BranchDest(addr),
+                            color: diff_index
+                                .get()
+                                .map_or(base_color, |i| DiffTextColor::Rotating(i as u8)),
+                            pad_to: 0,
+                        })
+                    } else {
+                        cb(DiffTextSegment {
+                            text: DiffText::Argument(InstructionArgValue::Opaque(Cow::Borrowed(
+                                "<invalid>",
+                            ))),
+                            color: diff_index
+                                .get()
+                                .map_or(base_color, |i| DiffTextColor::Rotating(i as u8)),
+                            pad_to: 0,
+                        })
+                    }
                 }
-                arg_diff_idx += 1;
             }
         }
+        InstructionPart::Separator => {
+            cb(DiffTextSegment::basic(diff_config.separator(), base_color))
+        }
+    })?;
+    // Fallback for relocation that wasn't displayed
+    if resolved.relocation.is_some() && !displayed_relocation {
+        cb(DiffTextSegment::basic(" <", base_color))?;
+        let resolved = resolved.relocation.unwrap();
+        let diff_index = ins_row.arg_diff.get(arg_idx).copied().unwrap_or_default();
+        let color =
+            diff_index.get().map_or(DiffTextColor::Bright, |i| DiffTextColor::Rotating(i as u8));
+        cb(DiffTextSegment { text: DiffText::Symbol(resolved.symbol), color, pad_to: 0 })?;
+        if resolved.relocation.addend != 0 {
+            cb(DiffTextSegment {
+                text: DiffText::Addend(resolved.relocation.addend),
+                color,
+                pad_to: 0,
+            })?;
+        }
+        cb(DiffTextSegment::basic(">", base_color))?;
     }
-    if let Some(branch) = &ins_diff.branch_to {
-        cb(DiffText::BasicColor(" ~>", branch.branch_idx))?;
+    if let Some(branch) = &ins_row.branch_to {
+        cb(DiffTextSegment::basic(" ~>", DiffTextColor::Rotating(branch.branch_idx as u8)))?;
     }
-    cb(DiffText::Eol)?;
+    cb(EOL_SEGMENT)?;
     Ok(())
 }
 
-fn display_reloc_name<E>(
-    reloc: &ObjReloc,
-    mut cb: impl FnMut(DiffText) -> Result<(), E>,
-    diff: Option<&ObjInsArgDiff>,
-) -> Result<(), E> {
-    cb(DiffText::Symbol(&reloc.target, diff))?;
-    match reloc.addend.cmp(&0i64) {
-        Ordering::Greater => cb(DiffText::Basic(&format!("+{:#x}", reloc.addend))),
-        Ordering::Less => cb(DiffText::Basic(&format!("-{:#x}", -reloc.addend))),
-        _ => Ok(()),
+impl PartialEq<HighlightKind> for HighlightKind {
+    fn eq(&self, other: &HighlightKind) -> bool {
+        match (self, other) {
+            (HighlightKind::Opcode(a), HighlightKind::Opcode(b)) => a == b,
+            (HighlightKind::Argument(a), HighlightKind::Argument(b)) => a.loose_eq(b),
+            (HighlightKind::Symbol(a), HighlightKind::Symbol(b)) => a == b,
+            (HighlightKind::Address(a), HighlightKind::Address(b)) => a == b,
+            _ => false,
+        }
     }
 }
 
@@ -110,11 +326,9 @@ impl PartialEq<DiffText<'_>> for HighlightKind {
     fn eq(&self, other: &DiffText) -> bool {
         match (self, other) {
             (HighlightKind::Opcode(a), DiffText::Opcode(_, b)) => a == b,
-            (HighlightKind::Arg(a), DiffText::Argument(b, _)) => a.loose_eq(b),
-            (HighlightKind::Symbol(a), DiffText::Symbol(b, _)) => a == &b.name,
-            (HighlightKind::Address(a), DiffText::Address(b) | DiffText::BranchDest(b, _)) => {
-                a == b
-            }
+            (HighlightKind::Argument(a), DiffText::Argument(b)) => a.loose_eq(b),
+            (HighlightKind::Symbol(a), DiffText::Symbol(b)) => a == &b.name,
+            (HighlightKind::Address(a), DiffText::Address(b) | DiffText::BranchDest(b)) => a == b,
             _ => false,
         }
     }
@@ -124,14 +338,479 @@ impl PartialEq<HighlightKind> for DiffText<'_> {
     fn eq(&self, other: &HighlightKind) -> bool { other.eq(self) }
 }
 
-impl From<DiffText<'_>> for HighlightKind {
-    fn from(value: DiffText<'_>) -> Self {
+impl From<&DiffText<'_>> for HighlightKind {
+    fn from(value: &DiffText<'_>) -> Self {
         match value {
-            DiffText::Opcode(_, op) => HighlightKind::Opcode(op),
-            DiffText::Argument(arg, _) => HighlightKind::Arg(arg.clone()),
-            DiffText::Symbol(sym, _) => HighlightKind::Symbol(sym.name.to_string()),
-            DiffText::Address(addr) | DiffText::BranchDest(addr, _) => HighlightKind::Address(addr),
+            DiffText::Opcode(_, op) => HighlightKind::Opcode(*op),
+            DiffText::Argument(arg) => HighlightKind::Argument(arg.to_static()),
+            DiffText::Symbol(sym) => HighlightKind::Symbol(sym.name.to_string()),
+            DiffText::Address(addr) | DiffText::BranchDest(addr) => HighlightKind::Address(*addr),
             _ => HighlightKind::None,
         }
     }
 }
+
+pub enum ContextItem {
+    Copy { value: String, label: Option<String> },
+    Navigate { label: String, symbol_index: usize, kind: SymbolNavigationKind },
+    Separator,
+}
+
+#[derive(Debug, Clone, Default, Eq, PartialEq)]
+pub enum SymbolNavigationKind {
+    #[default]
+    Normal,
+    Extab,
+}
+
+#[derive(Debug, Clone, Default, Eq, PartialEq)]
+pub enum HoverItemColor {
+    #[default]
+    Normal, // Gray
+    Emphasized, // White
+    Special,    // Blue
+    Delete,     // Red
+    Insert,     // Green
+}
+
+pub enum HoverItem {
+    Text { label: String, value: String, color: HoverItemColor },
+    Separator,
+}
+
+pub fn symbol_context(obj: &Object, symbol_index: usize) -> Vec<ContextItem> {
+    let symbol = &obj.symbols[symbol_index];
+    let mut out = Vec::new();
+    out.push(ContextItem::Copy { value: symbol.name.clone(), label: None });
+    if let Some(name) = &symbol.demangled_name {
+        out.push(ContextItem::Copy { value: name.clone(), label: None });
+    }
+    if symbol.section.is_some()
+        && let Some(address) = symbol.virtual_address
+    {
+        out.push(ContextItem::Copy {
+            value: format!("{address:x}"),
+            label: Some("virtual address".to_string()),
+        });
+    }
+    out.append(&mut obj.arch.symbol_context(obj, symbol_index));
+    out
+}
+
+pub fn symbol_hover(
+    obj: &Object,
+    symbol_index: usize,
+    addend: i64,
+    override_color: Option<HoverItemColor>,
+) -> Vec<HoverItem> {
+    let symbol = &obj.symbols[symbol_index];
+    let addend_str = match addend.cmp(&0i64) {
+        Ordering::Greater => format!("+{addend:x}"),
+        Ordering::Less => format!("-{:x}", -addend),
+        _ => String::new(),
+    };
+    let mut out = Vec::new();
+    out.push(HoverItem::Text {
+        label: "Name".into(),
+        value: format!("{}{}", symbol.name, addend_str),
+        color: override_color.clone().unwrap_or_default(),
+    });
+    if let Some(demangled_name) = &symbol.demangled_name {
+        out.push(HoverItem::Text {
+            label: "Demangled".into(),
+            value: demangled_name.into(),
+            color: override_color.clone().unwrap_or_default(),
+        });
+    }
+    if let Some(section) = symbol.section {
+        out.push(HoverItem::Text {
+            label: "Section".into(),
+            value: obj.sections[section].name.clone(),
+            color: override_color.clone().unwrap_or_default(),
+        });
+        out.push(HoverItem::Text {
+            label: "Address".into(),
+            value: format!("{:x}{}", symbol.address, addend_str),
+            color: override_color.clone().unwrap_or_default(),
+        });
+        if symbol.flags.contains(SymbolFlag::SizeInferred) {
+            out.push(HoverItem::Text {
+                label: "Size".into(),
+                value: format!("{:x} (inferred)", symbol.size),
+                color: override_color.clone().unwrap_or_default(),
+            });
+        } else {
+            out.push(HoverItem::Text {
+                label: "Size".into(),
+                value: format!("{:x}", symbol.size),
+                color: override_color.clone().unwrap_or_default(),
+            });
+        }
+        if let Some(align) = symbol.align {
+            out.push(HoverItem::Text {
+                label: "Alignment".into(),
+                value: align.get().to_string(),
+                color: override_color.clone().unwrap_or_default(),
+            });
+        }
+        if let Some(address) = symbol.virtual_address {
+            out.push(HoverItem::Text {
+                label: "Virtual address".into(),
+                value: format!("{address:x}"),
+                color: override_color.clone().unwrap_or(HoverItemColor::Special),
+            });
+        }
+    } else {
+        out.push(HoverItem::Text {
+            label: Default::default(),
+            value: "Extern".into(),
+            color: HoverItemColor::Emphasized,
+        });
+    }
+    out.append(&mut obj.arch.symbol_hover(obj, symbol_index));
+    out
+}
+
+pub fn relocation_context(
+    obj: &Object,
+    reloc: ResolvedRelocation,
+    ins: Option<ResolvedInstructionRef>,
+) -> Vec<ContextItem> {
+    let mut out = Vec::new();
+    out.append(&mut symbol_context(obj, reloc.relocation.target_symbol));
+    if let Some(ins) = ins {
+        let literals = display_ins_data_literals(obj, ins);
+        if !literals.is_empty() {
+            out.push(ContextItem::Separator);
+            for (literal, label_override) in literals {
+                out.push(ContextItem::Copy { value: literal, label: label_override });
+            }
+        }
+    }
+    out
+}
+
+pub fn relocation_hover(
+    obj: &Object,
+    reloc: ResolvedRelocation,
+    override_color: Option<HoverItemColor>,
+) -> Vec<HoverItem> {
+    let mut out = Vec::new();
+    if let Some(name) = obj.arch.reloc_name(reloc.relocation.flags) {
+        out.push(HoverItem::Text {
+            label: "Relocation".into(),
+            value: name.to_string(),
+            color: override_color.clone().unwrap_or_default(),
+        });
+    } else {
+        out.push(HoverItem::Text {
+            label: "Relocation".into(),
+            value: format!("<{:?}>", reloc.relocation.flags),
+            color: override_color.clone().unwrap_or_default(),
+        });
+    }
+    out.append(&mut symbol_hover(
+        obj,
+        reloc.relocation.target_symbol,
+        reloc.relocation.addend,
+        override_color,
+    ));
+    out
+}
+
+pub fn instruction_context(
+    obj: &Object,
+    resolved: ResolvedInstructionRef,
+    ins: &ParsedInstruction,
+) -> Vec<ContextItem> {
+    let mut out = Vec::new();
+    let mut hex_string = String::new();
+    for byte in resolved.code {
+        hex_string.push_str(&format!("{byte:02x}"));
+    }
+    out.push(ContextItem::Copy { value: hex_string, label: Some("instruction bytes".to_string()) });
+    out.append(&mut obj.arch.instruction_context(obj, resolved));
+    if let Some(virtual_address) = resolved.symbol.virtual_address {
+        let offset = resolved.ins_ref.address - resolved.symbol.address;
+        out.push(ContextItem::Copy {
+            value: format!("{:x}", virtual_address + offset),
+            label: Some("virtual address".to_string()),
+        });
+    }
+    for arg in &ins.args {
+        if let InstructionArg::Value(arg) = arg {
+            out.push(ContextItem::Copy { value: arg.to_string(), label: None });
+            match arg {
+                InstructionArgValue::Signed(v) => {
+                    out.push(ContextItem::Copy { value: v.to_string(), label: None });
+                }
+                InstructionArgValue::Unsigned(v) => {
+                    out.push(ContextItem::Copy { value: v.to_string(), label: None });
+                }
+                _ => {}
+            }
+        }
+    }
+    if let Some(reloc) = resolved.relocation {
+        out.push(ContextItem::Separator);
+        out.append(&mut relocation_context(obj, reloc, Some(resolved)));
+    }
+    out
+}
+
+pub fn instruction_hover(
+    obj: &Object,
+    resolved: ResolvedInstructionRef,
+    ins: &ParsedInstruction,
+) -> Vec<HoverItem> {
+    let mut out = Vec::new();
+    out.push(HoverItem::Text {
+        label: Default::default(),
+        value: format!("{:02x?}", resolved.code),
+        color: HoverItemColor::Normal,
+    });
+    out.append(&mut obj.arch.instruction_hover(obj, resolved));
+    if let Some(virtual_address) = resolved.symbol.virtual_address {
+        let offset = resolved.ins_ref.address - resolved.symbol.address;
+        out.push(HoverItem::Text {
+            label: "Virtual address".into(),
+            value: format!("{:x}", virtual_address + offset),
+            color: HoverItemColor::Special,
+        });
+    }
+    for arg in &ins.args {
+        if let InstructionArg::Value(arg) = arg {
+            match arg {
+                InstructionArgValue::Signed(v) => {
+                    out.push(HoverItem::Text {
+                        label: Default::default(),
+                        value: format!("{arg} == {v}"),
+                        color: HoverItemColor::Normal,
+                    });
+                }
+                InstructionArgValue::Unsigned(v) => {
+                    out.push(HoverItem::Text {
+                        label: Default::default(),
+                        value: format!("{arg} == {v}"),
+                        color: HoverItemColor::Normal,
+                    });
+                }
+                _ => {}
+            }
+        }
+    }
+    if let Some(reloc) = resolved.relocation {
+        out.push(HoverItem::Separator);
+        out.append(&mut relocation_hover(obj, reloc, None));
+        let bytes = obj.symbol_data(reloc.relocation.target_symbol).unwrap_or(&[]);
+        if let Some(ty) = obj.arch.guess_data_type(resolved, bytes) {
+            let literals = display_ins_data_literals(obj, resolved);
+            if !literals.is_empty() {
+                out.push(HoverItem::Separator);
+                for (literal, label_override) in literals {
+                    out.push(HoverItem::Text {
+                        label: label_override.unwrap_or_else(|| ty.to_string()),
+                        value: literal,
+                        color: HoverItemColor::Normal,
+                    });
+                }
+            }
+        }
+    }
+    out
+}
+
+#[derive(Debug, Copy, Clone)]
+pub enum SymbolFilter<'a> {
+    None,
+    Search(&'a Regex),
+    Mapping(usize, Option<&'a Regex>),
+}
+
+fn symbol_matches_filter(
+    symbol: &Symbol,
+    diff: &SymbolDiff,
+    filter: SymbolFilter<'_>,
+    show_hidden_symbols: bool,
+) -> bool {
+    // Ignore absolute symbols
+    if symbol.section.is_none() && !symbol.flags.contains(SymbolFlag::Common) {
+        return false;
+    }
+    if !show_hidden_symbols
+        && (symbol.size == 0
+            || symbol.flags.contains(SymbolFlag::Hidden)
+            || symbol.flags.contains(SymbolFlag::Ignored))
+    {
+        return false;
+    }
+    match filter {
+        SymbolFilter::None => true,
+        SymbolFilter::Search(regex) => {
+            regex.is_match(&symbol.name)
+                || symbol.demangled_name.as_deref().is_some_and(|s| regex.is_match(s))
+        }
+        SymbolFilter::Mapping(symbol_ref, regex) => {
+            diff.target_symbol == Some(symbol_ref)
+                && regex.is_none_or(|r| {
+                    r.is_match(&symbol.name)
+                        || symbol.demangled_name.as_deref().is_some_and(|s| r.is_match(s))
+                })
+        }
+    }
+}
+
+#[derive(Debug, Clone, Copy, Eq, PartialEq)]
+pub struct SectionDisplaySymbol {
+    pub symbol: usize,
+    pub is_mapping_symbol: bool,
+}
+
+#[derive(Debug, Clone)]
+pub struct SectionDisplay {
+    pub id: String,
+    pub name: String,
+    pub size: u64,
+    pub match_percent: Option<f32>,
+    pub symbols: Vec<SectionDisplaySymbol>,
+}
+
+pub fn display_sections(
+    obj: &Object,
+    diff: &ObjectDiff,
+    filter: SymbolFilter<'_>,
+    show_hidden_symbols: bool,
+    show_mapped_symbols: bool,
+    reverse_fn_order: bool,
+) -> Vec<SectionDisplay> {
+    let mut mapping = BTreeSet::new();
+    let is_mapping_symbol = if let SymbolFilter::Mapping(_, _) = filter {
+        for mapping_diff in &diff.mapping_symbols {
+            let symbol = &obj.symbols[mapping_diff.symbol_index];
+            if !symbol_matches_filter(
+                symbol,
+                &mapping_diff.symbol_diff,
+                filter,
+                show_hidden_symbols,
+            ) {
+                continue;
+            }
+            if !show_mapped_symbols {
+                let symbol_diff = &diff.symbols[mapping_diff.symbol_index];
+                if symbol_diff.target_symbol.is_some() {
+                    continue;
+                }
+            }
+            mapping.insert((symbol.section, mapping_diff.symbol_index));
+        }
+        true
+    } else {
+        for (symbol_idx, (symbol, symbol_diff)) in obj.symbols.iter().zip(&diff.symbols).enumerate()
+        {
+            if !symbol_matches_filter(symbol, symbol_diff, filter, show_hidden_symbols) {
+                continue;
+            }
+            mapping.insert((symbol.section, symbol_idx));
+        }
+        false
+    };
+    let num_sections = mapping.iter().map(|(section_idx, _)| *section_idx).dedup().count();
+    let mut sections = Vec::with_capacity(num_sections);
+    for (section_idx, group) in &mapping.iter().chunk_by(|(section_idx, _)| *section_idx) {
+        let mut symbols = group
+            .map(|&(_, symbol)| SectionDisplaySymbol { symbol, is_mapping_symbol })
+            .collect::<Vec<_>>();
+        if let Some(section_idx) = section_idx {
+            let section = &obj.sections[section_idx];
+            if section.kind == SectionKind::Unknown {
+                // Skip unknown and hidden sections
+                continue;
+            }
+            let section_diff = &diff.sections[section_idx];
+            let reverse_fn_order = section.kind == SectionKind::Code && reverse_fn_order;
+            symbols.sort_by(|a, b| {
+                let a = &obj.symbols[a.symbol];
+                let b = &obj.symbols[b.symbol];
+                section_symbol_sort(a, b)
+                    .then_with(|| {
+                        if reverse_fn_order {
+                            b.address.cmp(&a.address)
+                        } else {
+                            a.address.cmp(&b.address)
+                        }
+                    })
+                    .then_with(|| a.size.cmp(&b.size))
+            });
+            sections.push(SectionDisplay {
+                id: section.id.clone(),
+                name: if section.flags.contains(SectionFlag::Combined) {
+                    format!("{} [combined]", section.name)
+                } else {
+                    section.name.clone()
+                },
+                size: section.size,
+                match_percent: section_diff.match_percent,
+                symbols,
+            });
+        } else {
+            // Don't sort, preserve order of absolute symbols
+            sections.push(SectionDisplay {
+                id: ".comm".to_string(),
+                name: ".comm".to_string(),
+                size: 0,
+                match_percent: None,
+                symbols,
+            });
+        }
+    }
+    sections.sort_by(|a, b| a.name.cmp(&b.name));
+    sections
+}
+
+fn section_symbol_sort(a: &Symbol, b: &Symbol) -> Ordering {
+    if a.kind == SymbolKind::Section {
+        if b.kind != SymbolKind::Section {
+            return Ordering::Less;
+        }
+    } else if b.kind == SymbolKind::Section {
+        return Ordering::Greater;
+    }
+    Ordering::Equal
+}
+
+pub fn display_ins_data_labels(obj: &Object, resolved: ResolvedInstructionRef) -> Vec<String> {
+    let Some(reloc) = resolved.relocation else {
+        return Vec::new();
+    };
+    if reloc.relocation.addend < 0 || reloc.relocation.addend as u64 >= reloc.symbol.size {
+        return Vec::new();
+    }
+    let Some(data) = obj.symbol_data(reloc.relocation.target_symbol) else {
+        return Vec::new();
+    };
+    let bytes = &data[reloc.relocation.addend as usize..];
+    obj.arch
+        .guess_data_type(resolved, bytes)
+        .map(|ty| ty.display_labels(obj.endianness, bytes))
+        .unwrap_or_default()
+}
+
+pub fn display_ins_data_literals(
+    obj: &Object,
+    resolved: ResolvedInstructionRef,
+) -> Vec<(String, Option<String>)> {
+    let Some(reloc) = resolved.relocation else {
+        return Vec::new();
+    };
+    if reloc.relocation.addend < 0 || reloc.relocation.addend as u64 >= reloc.symbol.size {
+        return Vec::new();
+    }
+    let Some(data) = obj.symbol_data(reloc.relocation.target_symbol) else {
+        return Vec::new();
+    };
+    let bytes = &data[reloc.relocation.addend as usize..];
+    obj.arch
+        .guess_data_type(resolved, bytes)
+        .map(|ty| ty.display_literals(obj.endianness, bytes))
+        .unwrap_or_default()
+}

objdiff-core/src/jobs/check_update.rs

@@ -6,7 +6,7 @@ use self_update::{
     update::{Release, ReleaseUpdate},
 };
 
-use crate::jobs::{start_job, update_status, Job, JobContext, JobResult, JobState};
+use crate::jobs::{Job, JobContext, JobResult, JobState, start_job, update_status};
 
 pub struct CheckUpdateConfig {
     pub build_updater: fn() -> Result<Box<dyn ReleaseUpdate>>,

objdiff-core/src/jobs/create_scratch.rs

@@ -1,16 +1,17 @@
-use std::{fs, path::PathBuf, sync::mpsc::Receiver, task::Waker};
+use std::{fs, sync::mpsc::Receiver, task::Waker};
 
-use anyhow::{anyhow, bail, Context, Result};
+use anyhow::{Context, Result, anyhow, bail};
+use typed_path::{Utf8PlatformPathBuf, Utf8UnixPathBuf};
 
 use crate::{
-    build::{run_make, BuildConfig, BuildStatus},
-    jobs::{start_job, update_status, Job, JobContext, JobResult, JobState},
+    build::{BuildConfig, BuildStatus, run_make},
+    jobs::{Job, JobContext, JobResult, JobState, start_job, update_status},
 };
 
 #[derive(Debug, Clone)]
 pub struct CreateScratchConfig {
     pub build_config: BuildConfig,
-    pub context_path: Option<PathBuf>,
+    pub context_path: Option<Utf8UnixPathBuf>,
     pub build_context: bool,
 
     // Scratch fields
@@ -18,7 +19,7 @@ pub struct CreateScratchConfig {
     pub platform: String,
     pub compiler_flags: String,
     pub function_name: String,
-    pub target_obj: PathBuf,
+    pub target_obj: Utf8PlatformPathBuf,
     pub preset_id: Option<u32>,
 }
 
@@ -47,26 +48,25 @@ fn run_create_scratch(
     if let Some(context_path) = &config.context_path {
         if config.build_context {
             update_status(status, "Building context".to_string(), 0, 2, &cancel)?;
-            match run_make(&config.build_config, context_path) {
+            match run_make(&config.build_config, context_path.as_ref()) {
                 BuildStatus { success: true, .. } => {}
                 BuildStatus { success: false, stdout, stderr, .. } => {
                     bail!("Failed to build context:\n{stdout}\n{stderr}")
                 }
             }
         }
-        let context_path = project_dir.join(context_path);
+        let context_path = project_dir.join(context_path.with_platform_encoding());
         context = Some(
             fs::read_to_string(&context_path)
-                .map_err(|e| anyhow!("Failed to read {}: {}", context_path.display(), e))?,
+                .map_err(|e| anyhow!("Failed to read {}: {}", context_path, e))?,
         );
     }
 
     update_status(status, "Creating scratch".to_string(), 1, 2, &cancel)?;
     let diff_flags = [format!("--disassemble={}", config.function_name)];
     let diff_flags = serde_json::to_string(&diff_flags)?;
-    let obj_path = project_dir.join(&config.target_obj);
-    let file = reqwest::blocking::multipart::Part::file(&obj_path)
-        .with_context(|| format!("Failed to open {}", obj_path.display()))?;
+    let file = reqwest::blocking::multipart::Part::file(&config.target_obj)
+        .with_context(|| format!("Failed to open {}", config.target_obj))?;
     let mut form = reqwest::blocking::multipart::Form::new()
         .text("compiler", config.compiler.clone())
         .text("platform", config.platform.clone())

objdiff-core/src/jobs/mod.rs

@@ -1,8 +1,8 @@
 use std::{
     sync::{
+        Arc, RwLock,
         atomic::{AtomicUsize, Ordering},
         mpsc::{Receiver, Sender, TryRecvError},
-        Arc, RwLock,
     },
     task::Waker,
     thread::JoinHandle,

objdiff-core/src/jobs/objdiff.rs

@@ -1,21 +1,22 @@
-use std::{path::PathBuf, sync::mpsc::Receiver, task::Waker};
+use std::{sync::mpsc::Receiver, task::Waker};
 
-use anyhow::{anyhow, Error, Result};
+use anyhow::{Error, Result, bail};
 use time::OffsetDateTime;
+use typed_path::Utf8PlatformPathBuf;
 
 use crate::{
-    build::{run_make, BuildConfig, BuildStatus},
-    diff::{diff_objs, DiffObjConfig, MappingConfig, ObjDiff},
-    jobs::{start_job, update_status, Job, JobContext, JobResult, JobState},
-    obj::{read, ObjInfo},
+    build::{BuildConfig, BuildStatus, run_make},
+    diff::{DiffObjConfig, MappingConfig, ObjectDiff, diff_objs},
+    jobs::{Job, JobContext, JobResult, JobState, start_job, update_status},
+    obj::{Object, read},
 };
 
 pub struct ObjDiffConfig {
     pub build_config: BuildConfig,
     pub build_base: bool,
     pub build_target: bool,
-    pub target_path: Option<PathBuf>,
-    pub base_path: Option<PathBuf>,
+    pub target_path: Option<Utf8PlatformPathBuf>,
+    pub base_path: Option<Utf8PlatformPathBuf>,
     pub diff_obj_config: DiffObjConfig,
     pub mapping_config: MappingConfig,
 }
@@ -23,8 +24,8 @@ pub struct ObjDiffConfig {
 pub struct ObjDiffResult {
     pub first_status: BuildStatus,
     pub second_status: BuildStatus,
-    pub first_obj: Option<(ObjInfo, ObjDiff)>,
-    pub second_obj: Option<(ObjInfo, ObjDiff)>,
+    pub first_obj: Option<(Object, ObjectDiff)>,
+    pub second_obj: Option<(Object, ObjectDiff)>,
     pub time: OffsetDateTime,
 }
 
@@ -42,22 +43,20 @@ fn run_build(
             .as_ref()
             .ok_or_else(|| Error::msg("Missing project dir"))?;
         if let Some(target_path) = &config.target_path {
-            target_path_rel = Some(target_path.strip_prefix(project_dir).map_err(|_| {
-                anyhow!(
-                    "Target path '{}' doesn't begin with '{}'",
-                    target_path.display(),
-                    project_dir.display()
-                )
-            })?);
+            target_path_rel = match target_path.strip_prefix(project_dir) {
+                Ok(p) => Some(p.with_unix_encoding()),
+                Err(_) => {
+                    bail!("Target path '{}' doesn't begin with '{}'", target_path, project_dir);
+                }
+            };
         }
         if let Some(base_path) = &config.base_path {
-            base_path_rel = Some(base_path.strip_prefix(project_dir).map_err(|_| {
-                anyhow!(
-                    "Base path '{}' doesn't begin with '{}'",
-                    base_path.display(),
-                    project_dir.display()
-                )
-            })?);
+            base_path_rel = match base_path.strip_prefix(project_dir) {
+                Ok(p) => Some(p.with_unix_encoding()),
+                Err(_) => {
+                    bail!("Base path '{}' doesn't begin with '{}'", base_path, project_dir);
+                }
+            };
         };
     }
 
@@ -80,13 +79,13 @@ fn run_build(
         Some(target_path_rel) if config.build_target => {
             update_status(
                 context,
-                format!("Building target {}", target_path_rel.display()),
+                format!("Building target {target_path_rel}"),
                 step_idx,
                 total,
                 &cancel,
             )?;
             step_idx += 1;
-            run_make(&config.build_config, target_path_rel)
+            run_make(&config.build_config, target_path_rel.as_ref())
         }
         _ => BuildStatus::default(),
     };
@@ -95,13 +94,13 @@ fn run_build(
         Some(base_path_rel) if config.build_base => {
             update_status(
                 context,
-                format!("Building base {}", base_path_rel.display()),
+                format!("Building base {base_path_rel}"),
                 step_idx,
                 total,
                 &cancel,
             )?;
             step_idx += 1;
-            run_make(&config.build_config, base_path_rel)
+            run_make(&config.build_config, base_path_rel.as_ref())
         }
         _ => BuildStatus::default(),
     };
@@ -112,19 +111,19 @@ fn run_build(
         Some(target_path) if first_status.success => {
             update_status(
                 context,
-                format!("Loading target {}", target_path.display()),
+                format!("Loading target {target_path}"),
                 step_idx,
                 total,
                 &cancel,
             )?;
             step_idx += 1;
-            match read::read(target_path, &config.diff_obj_config) {
+            match read::read(target_path.as_ref(), &config.diff_obj_config) {
                 Ok(obj) => Some(obj),
                 Err(e) => {
                     first_status = BuildStatus {
                         success: false,
-                        stdout: format!("Loading object '{}'", target_path.display()),
-                        stderr: format!("{:#}", e),
+                        stdout: format!("Loading object '{target_path}'"),
+                        stderr: format!("{e:#}"),
                         ..Default::default()
                     };
                     None
@@ -140,21 +139,15 @@ fn run_build(
 
     let second_obj = match &config.base_path {
         Some(base_path) if second_status.success => {
-            update_status(
-                context,
-                format!("Loading base {}", base_path.display()),
-                step_idx,
-                total,
-                &cancel,
-            )?;
+            update_status(context, format!("Loading base {base_path}"), step_idx, total, &cancel)?;
             step_idx += 1;
-            match read::read(base_path, &config.diff_obj_config) {
+            match read::read(base_path.as_ref(), &config.diff_obj_config) {
                 Ok(obj) => Some(obj),
                 Err(e) => {
                     second_status = BuildStatus {
                         success: false,
-                        stdout: format!("Loading object '{}'", base_path.display()),
-                        stderr: format!("{:#}", e),
+                        stdout: format!("Loading object '{base_path}'"),
+                        stderr: format!("{e:#}"),
                         ..Default::default()
                     };
                     None
@@ -171,11 +164,11 @@ fn run_build(
     update_status(context, "Performing diff".to_string(), step_idx, total, &cancel)?;
     step_idx += 1;
     let result = diff_objs(
-        &config.diff_obj_config,
-        &config.mapping_config,
         first_obj.as_ref(),
         second_obj.as_ref(),
         None,
+        &config.diff_obj_config,
+        &config.mapping_config,
     )?;
 
     update_status(context, "Complete".to_string(), step_idx, total, &cancel)?;

objdiff-core/src/jobs/update.rs

@@ -10,7 +10,7 @@ use anyhow::{Context, Result};
 pub use self_update; // Re-export self_update crate
 use self_update::update::ReleaseUpdate;
 
-use crate::jobs::{start_job, update_status, Job, JobContext, JobResult, JobState};
+use crate::jobs::{Job, JobContext, JobResult, JobState, start_job, update_status};
 
 pub struct UpdateConfig {
     pub build_updater: fn() -> Result<Box<dyn ReleaseUpdate>>,

objdiff-core/src/lib.rs

@@ -1,3 +1,7 @@
+#![allow(clippy::too_many_arguments)]
+#![cfg_attr(not(feature = "std"), no_std)]
+extern crate alloc;
+
 #[cfg(feature = "any-arch")]
 pub mod arch;
 #[cfg(feature = "bindings")]

objdiff-core/src/obj/dwarf2.rs

@@ -0,0 +1,109 @@
+use alloc::{borrow::Cow, vec::Vec};
+
+use anyhow::{Context, Result};
+use object::{Object as _, ObjectSection as _};
+use typed_arena::Arena;
+
+use crate::obj::{Section, SectionKind};
+
+/// Parse line information from DWARF 2+ sections.
+pub(crate) fn parse_line_info_dwarf2(
+    obj_file: &object::File,
+    sections: &mut [Section],
+) -> Result<()> {
+    let arena_data = Arena::new();
+    let arena_relocations = Arena::new();
+    let endian = match obj_file.endianness() {
+        object::Endianness::Little => gimli::RunTimeEndian::Little,
+        object::Endianness::Big => gimli::RunTimeEndian::Big,
+    };
+    let dwarf = gimli::Dwarf::load(|id: gimli::SectionId| -> Result<_> {
+        load_file_section(id, obj_file, endian, &arena_data, &arena_relocations)
+    })
+    .context("loading DWARF sections")?;
+
+    let mut iter = dwarf.units();
+    if let Some(header) = iter.next().map_err(|e| gimli_error(e, "iterating over DWARF units"))? {
+        let unit = dwarf.unit(header).map_err(|e| gimli_error(e, "loading DWARF unit"))?;
+        if let Some(program) = unit.line_program.clone() {
+            let mut text_sections = sections.iter_mut().filter(|s| s.kind == SectionKind::Code);
+            let mut lines = text_sections.next().map(|section| &mut section.line_info);
+
+            let mut rows = program.rows();
+            while let Some((_header, row)) =
+                rows.next_row().map_err(|e| gimli_error(e, "loading program row"))?
+            {
+                if let (Some(line), Some(lines)) = (row.line(), &mut lines) {
+                    lines.insert(row.address(), line.get() as u32);
+                }
+                if row.end_sequence() {
+                    // The next row is the start of a new sequence, which means we must
+                    // advance to the next .text section.
+                    lines = text_sections.next().map(|section| &mut section.line_info);
+                }
+            }
+        }
+    }
+    if iter.next().map_err(|e| gimli_error(e, "checking for next unit"))?.is_some() {
+        log::warn!("Multiple units found in DWARF data, only processing the first");
+    }
+
+    Ok(())
+}
+
+#[derive(Debug, Default)]
+struct RelocationMap(object::read::RelocationMap);
+
+impl RelocationMap {
+    fn add(&mut self, file: &object::File, section: &object::Section) {
+        for (offset, relocation) in section.relocations() {
+            if let Err(e) = self.0.add(file, offset, relocation) {
+                log::error!(
+                    "Relocation error for section {} at offset 0x{:08x}: {}",
+                    section.name().unwrap(),
+                    offset,
+                    e
+                );
+            }
+        }
+    }
+}
+
+impl gimli::read::Relocate for &'_ RelocationMap {
+    fn relocate_address(&self, offset: usize, value: u64) -> gimli::Result<u64> {
+        Ok(self.0.relocate(offset as u64, value))
+    }
+
+    fn relocate_offset(&self, offset: usize, value: usize) -> gimli::Result<usize> {
+        <usize as gimli::ReaderOffset>::from_u64(self.0.relocate(offset as u64, value as u64))
+    }
+}
+
+type Relocate<'a, R> = gimli::RelocateReader<R, &'a RelocationMap>;
+
+fn load_file_section<'input, 'arena, Endian: gimli::Endianity>(
+    id: gimli::SectionId,
+    file: &object::File<'input>,
+    endian: Endian,
+    arena_data: &'arena Arena<Cow<'input, [u8]>>,
+    arena_relocations: &'arena Arena<RelocationMap>,
+) -> Result<Relocate<'arena, gimli::EndianSlice<'arena, Endian>>> {
+    let mut relocations = RelocationMap::default();
+    let data = match file.section_by_name(id.name()) {
+        Some(ref section) => {
+            relocations.add(file, section);
+            section.uncompressed_data()?
+        }
+        // Use a non-zero capacity so that `ReaderOffsetId`s are unique.
+        None => Cow::Owned(Vec::with_capacity(1)),
+    };
+    let data_ref = arena_data.alloc(data);
+    let section = gimli::EndianSlice::new(data_ref, endian);
+    let relocations = arena_relocations.alloc(relocations);
+    Ok(Relocate::new(section, relocations))
+}
+
+#[inline]
+fn gimli_error(e: gimli::Error, context: &str) -> anyhow::Error {
+    anyhow::anyhow!("gimli error {context}: {e:?}")
+}

objdiff-core/src/obj/mod.rs

@@ -1,23 +1,42 @@
+#[cfg(feature = "dwarf")]
+mod dwarf2;
 pub mod read;
 pub mod split_meta;
 
-use std::{borrow::Cow, collections::BTreeMap, fmt, path::PathBuf};
+use alloc::{
+    borrow::Cow,
+    boxed::Box,
+    collections::BTreeMap,
+    string::{String, ToString},
+    vec,
+    vec::Vec,
+};
+use core::{
+    fmt,
+    num::{NonZeroU32, NonZeroU64},
+};
 
-use filetime::FileTime;
-use flagset::{flags, FlagSet};
-use object::RelocationFlags;
-use split_meta::SplitMeta;
+use flagset::{FlagSet, flags};
 
-use crate::{arch::ObjArch, util::ReallySigned};
+use crate::{
+    arch::{Arch, ArchDummy},
+    obj::split_meta::SplitMeta,
+    util::ReallySigned,
+};
 
-#[derive(Debug, Eq, PartialEq, Copy, Clone)]
-pub enum ObjSectionKind {
+#[derive(Debug, Eq, PartialEq, Copy, Clone, Default)]
+pub enum SectionKind {
+    #[default]
+    Unknown = -1,
     Code,
     Data,
     Bss,
+    Common,
 }
+
 flags! {
-    pub enum ObjSymbolFlags: u8 {
+    #[derive(Hash)]
+    pub enum SymbolFlag: u8 {
         Global,
         Local,
         Weak,
@@ -26,105 +45,199 @@ flags! {
         /// Has extra data associated with the symbol
         /// (e.g. exception table entry)
         HasExtra,
+        /// Symbol size was missing and was inferred
+        SizeInferred,
+        /// Symbol should be ignored by any diffing
+        Ignored,
     }
 }
-#[derive(Debug, Copy, Clone, Default, PartialEq)]
-pub struct ObjSymbolFlagSet(pub FlagSet<ObjSymbolFlags>);
 
-#[derive(Debug, Clone)]
-pub struct ObjSection {
+pub type SymbolFlagSet = FlagSet<SymbolFlag>;
+
+flags! {
+    #[derive(Hash)]
+    pub enum SectionFlag: u8 {
+        /// Section combined from multiple input sections
+        Combined,
+    }
+}
+
+pub type SectionFlagSet = FlagSet<SectionFlag>;
+
+#[derive(Debug, Clone, Default)]
+pub struct Section {
+    /// Unique section ID
+    pub id: String,
     pub name: String,
-    pub kind: ObjSectionKind,
     pub address: u64,
     pub size: u64,
-    pub data: Vec<u8>,
-    pub orig_index: usize,
-    pub symbols: Vec<ObjSymbol>,
-    pub relocations: Vec<ObjReloc>,
-    pub virtual_address: Option<u64>,
+    pub kind: SectionKind,
+    pub data: SectionData,
+    pub flags: SectionFlagSet,
+    pub align: Option<NonZeroU64>,
+    pub relocations: Vec<Relocation>,
     /// Line number info (.line or .debug_line section)
     pub line_info: BTreeMap<u64, u32>,
+    /// Original virtual address (from .note.split section)
+    pub virtual_address: Option<u64>,
+}
+
+#[derive(Clone, Default)]
+#[repr(transparent)]
+pub struct SectionData(pub Vec<u8>);
+
+impl core::ops::Deref for SectionData {
+    type Target = Vec<u8>;
+
+    fn deref(&self) -> &Self::Target { &self.0 }
+}
+
+impl fmt::Debug for SectionData {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        f.debug_tuple("SectionData").field(&self.0.len()).finish()
+    }
+}
+
+impl Section {
+    pub fn data_range(&self, address: u64, size: usize) -> Option<&[u8]> {
+        let offset = address.checked_sub(self.address)?;
+        self.data.get(offset as usize..offset as usize + size)
+    }
+
+    // The alignment to use when "Combine data/text sections" is enabled.
+    pub fn combined_alignment(&self) -> u64 {
+        const MIN_ALIGNMENT: u64 = 4;
+        self.align.map(|align| align.get().max(MIN_ALIGNMENT)).unwrap_or(MIN_ALIGNMENT)
+    }
+
+    pub fn relocation_at<'obj>(
+        &'obj self,
+        obj: &'obj Object,
+        ins_ref: InstructionRef,
+    ) -> Option<ResolvedRelocation<'obj>> {
+        match self.relocations.binary_search_by_key(&ins_ref.address, |r| r.address) {
+            Ok(mut i) => {
+                // Find the first relocation at the address
+                while i
+                    .checked_sub(1)
+                    .and_then(|n| self.relocations.get(n))
+                    .is_some_and(|r| r.address == ins_ref.address)
+                {
+                    i -= 1;
+                }
+                self.relocations.get(i)
+            }
+            Err(i) => self
+                .relocations
+                .get(i)
+                .filter(|r| r.address < ins_ref.address + ins_ref.size as u64),
+        }
+        .and_then(|relocation| {
+            let symbol = obj.symbols.get(relocation.target_symbol)?;
+            Some(ResolvedRelocation { relocation, symbol })
+        })
+    }
 }
 
 #[derive(Debug, Clone, Eq, PartialEq)]
-pub enum ObjInsArgValue {
+pub enum InstructionArgValue<'a> {
     Signed(i64),
     Unsigned(u64),
-    Opaque(Cow<'static, str>),
+    Opaque(Cow<'a, str>),
 }
 
-impl ObjInsArgValue {
-    pub fn loose_eq(&self, other: &ObjInsArgValue) -> bool {
+impl InstructionArgValue<'_> {
+    pub fn loose_eq(&self, other: &InstructionArgValue) -> bool {
         match (self, other) {
-            (ObjInsArgValue::Signed(a), ObjInsArgValue::Signed(b)) => a == b,
-            (ObjInsArgValue::Unsigned(a), ObjInsArgValue::Unsigned(b)) => a == b,
-            (ObjInsArgValue::Signed(a), ObjInsArgValue::Unsigned(b))
-            | (ObjInsArgValue::Unsigned(b), ObjInsArgValue::Signed(a)) => *a as u64 == *b,
-            (ObjInsArgValue::Opaque(a), ObjInsArgValue::Opaque(b)) => a == b,
+            (InstructionArgValue::Signed(a), InstructionArgValue::Signed(b)) => a == b,
+            (InstructionArgValue::Unsigned(a), InstructionArgValue::Unsigned(b)) => a == b,
+            (InstructionArgValue::Signed(a), InstructionArgValue::Unsigned(b))
+            | (InstructionArgValue::Unsigned(b), InstructionArgValue::Signed(a)) => *a as u64 == *b,
+            (InstructionArgValue::Opaque(a), InstructionArgValue::Opaque(b)) => a == b,
             _ => false,
         }
     }
+
+    pub fn to_static(&self) -> InstructionArgValue<'static> {
+        match self {
+            InstructionArgValue::Signed(v) => InstructionArgValue::Signed(*v),
+            InstructionArgValue::Unsigned(v) => InstructionArgValue::Unsigned(*v),
+            InstructionArgValue::Opaque(v) => InstructionArgValue::Opaque(v.to_string().into()),
+        }
+    }
+
+    pub fn into_static(self) -> InstructionArgValue<'static> {
+        match self {
+            InstructionArgValue::Signed(v) => InstructionArgValue::Signed(v),
+            InstructionArgValue::Unsigned(v) => InstructionArgValue::Unsigned(v),
+            InstructionArgValue::Opaque(v) => {
+                InstructionArgValue::Opaque(Cow::Owned(v.into_owned()))
+            }
+        }
+    }
 }
 
-impl fmt::Display for ObjInsArgValue {
+impl fmt::Display for InstructionArgValue<'_> {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         match self {
-            ObjInsArgValue::Signed(v) => write!(f, "{:#x}", ReallySigned(*v)),
-            ObjInsArgValue::Unsigned(v) => write!(f, "{:#x}", v),
-            ObjInsArgValue::Opaque(v) => write!(f, "{}", v),
+            InstructionArgValue::Signed(v) => write!(f, "{:#x}", ReallySigned(*v)),
+            InstructionArgValue::Unsigned(v) => write!(f, "{v:#x}"),
+            InstructionArgValue::Opaque(v) => write!(f, "{v}"),
         }
     }
 }
 
 #[derive(Debug, Clone, Eq, PartialEq)]
-pub enum ObjInsArg {
-    PlainText(Cow<'static, str>),
-    Arg(ObjInsArgValue),
+pub enum InstructionArg<'a> {
+    Value(InstructionArgValue<'a>),
     Reloc,
     BranchDest(u64),
 }
 
-impl ObjInsArg {
-    #[inline]
-    pub fn is_plain_text(&self) -> bool { matches!(self, ObjInsArg::PlainText(_)) }
-
-    pub fn loose_eq(&self, other: &ObjInsArg) -> bool {
+impl InstructionArg<'_> {
+    pub fn loose_eq(&self, other: &InstructionArg) -> bool {
         match (self, other) {
-            (ObjInsArg::Arg(a), ObjInsArg::Arg(b)) => a.loose_eq(b),
-            (ObjInsArg::Reloc, ObjInsArg::Reloc) => true,
-            (ObjInsArg::BranchDest(a), ObjInsArg::BranchDest(b)) => a == b,
+            (InstructionArg::Value(a), InstructionArg::Value(b)) => a.loose_eq(b),
+            (InstructionArg::Reloc, InstructionArg::Reloc) => true,
+            (InstructionArg::BranchDest(a), InstructionArg::BranchDest(b)) => a == b,
             _ => false,
         }
     }
+
+    pub fn to_static(&self) -> InstructionArg<'static> {
+        match self {
+            InstructionArg::Value(v) => InstructionArg::Value(v.to_static()),
+            InstructionArg::Reloc => InstructionArg::Reloc,
+            InstructionArg::BranchDest(v) => InstructionArg::BranchDest(*v),
+        }
+    }
+
+    pub fn into_static(self) -> InstructionArg<'static> {
+        match self {
+            InstructionArg::Value(v) => InstructionArg::Value(v.into_static()),
+            InstructionArg::Reloc => InstructionArg::Reloc,
+            InstructionArg::BranchDest(v) => InstructionArg::BranchDest(v),
+        }
+    }
 }
 
-#[derive(Debug, Clone)]
-pub struct ObjIns {
+#[derive(Copy, Clone, Debug, Default)]
+pub struct InstructionRef {
     pub address: u64,
     pub size: u8,
-    pub op: u16,
-    pub mnemonic: Cow<'static, str>,
-    pub args: Vec<ObjInsArg>,
-    pub reloc: Option<ObjReloc>,
+    pub opcode: u16,
     pub branch_dest: Option<u64>,
-    /// Line number
-    pub line: Option<u32>,
-    /// Formatted instruction
-    pub formatted: String,
-    /// Original (unsimplified) instruction
-    pub orig: Option<String>,
 }
 
-impl ObjIns {
-    /// Iterate over non-PlainText arguments.
-    #[inline]
-    pub fn iter_args(&self) -> impl DoubleEndedIterator<Item = &ObjInsArg> {
-        self.args.iter().filter(|a| !a.is_plain_text())
-    }
+#[derive(Debug, Clone)]
+pub struct ParsedInstruction {
+    pub ins_ref: InstructionRef,
+    pub mnemonic: Cow<'static, str>,
+    pub args: Vec<InstructionArg<'static>>,
 }
 
 #[derive(Debug, Copy, Clone, Eq, PartialEq, Hash, Default)]
-pub enum ObjSymbolKind {
+pub enum SymbolKind {
     #[default]
     Unknown,
     Function,
@@ -132,59 +245,195 @@ pub enum ObjSymbolKind {
     Section,
 }
 
-#[derive(Debug, Clone, PartialEq)]
-pub struct ObjSymbol {
+#[derive(Debug)]
+pub enum FlowAnalysisValue {
+    Text(String),
+}
+
+pub trait FlowAnalysisResult: core::fmt::Debug + Send {
+    fn get_argument_value_at_address(
+        &self,
+        address: u64,
+        argument: u8,
+    ) -> Option<&FlowAnalysisValue>;
+}
+
+#[derive(Debug, Clone, Eq, PartialEq, Hash, Default)]
+pub struct Symbol {
     pub name: String,
     pub demangled_name: Option<String>,
     pub address: u64,
-    pub section_address: u64,
     pub size: u64,
-    pub size_known: bool,
-    pub kind: ObjSymbolKind,
-    pub flags: ObjSymbolFlagSet,
-    pub orig_section_index: Option<usize>,
+    pub kind: SymbolKind,
+    pub section: Option<usize>,
+    pub flags: SymbolFlagSet,
+    /// Alignment (from Metrowerks .comment section)
+    pub align: Option<NonZeroU32>,
     /// Original virtual address (from .note.split section)
     pub virtual_address: Option<u64>,
-    /// Original index in object symbol table
-    pub original_index: Option<usize>,
-    pub bytes: Vec<u8>,
 }
 
-pub struct ObjInfo {
-    pub arch: Box<dyn ObjArch>,
-    pub path: Option<PathBuf>,
-    pub timestamp: Option<FileTime>,
-    pub sections: Vec<ObjSection>,
-    /// Common BSS symbols
-    pub common: Vec<ObjSymbol>,
+#[derive(Debug)]
+pub struct Object {
+    pub arch: Box<dyn Arch>,
+    pub endianness: object::Endianness,
+    pub symbols: Vec<Symbol>,
+    pub sections: Vec<Section>,
     /// Split object metadata (.note.split section)
     pub split_meta: Option<SplitMeta>,
+    #[cfg(feature = "std")]
+    pub path: Option<std::path::PathBuf>,
+    #[cfg(feature = "std")]
+    pub timestamp: Option<filetime::FileTime>,
+    pub flow_analysis_results: BTreeMap<u64, Box<dyn FlowAnalysisResult>>,
 }
 
-#[derive(Debug, Clone, PartialEq)]
-pub struct ObjReloc {
+impl Default for Object {
+    fn default() -> Self {
+        Self {
+            arch: ArchDummy::new(),
+            endianness: object::Endianness::Little,
+            symbols: vec![],
+            sections: vec![],
+            split_meta: None,
+            #[cfg(feature = "std")]
+            path: None,
+            #[cfg(feature = "std")]
+            timestamp: None,
+            flow_analysis_results: BTreeMap::<u64, Box<dyn FlowAnalysisResult>>::new(),
+        }
+    }
+}
+
+impl Object {
+    pub fn resolve_instruction_ref(
+        &self,
+        symbol_index: usize,
+        ins_ref: InstructionRef,
+    ) -> Option<ResolvedInstructionRef<'_>> {
+        let symbol = self.symbols.get(symbol_index)?;
+        let section_index = symbol.section?;
+        let section = self.sections.get(section_index)?;
+        let offset = ins_ref.address.checked_sub(section.address)?;
+        let code = section.data.get(offset as usize..offset as usize + ins_ref.size as usize)?;
+        let relocation = section.relocation_at(self, ins_ref);
+        Some(ResolvedInstructionRef {
+            ins_ref,
+            symbol_index,
+            symbol,
+            section,
+            section_index,
+            code,
+            relocation,
+        })
+    }
+
+    pub fn symbol_data(&self, symbol_index: usize) -> Option<&[u8]> {
+        let symbol = self.symbols.get(symbol_index)?;
+        let section_index = symbol.section?;
+        let section = self.sections.get(section_index)?;
+        let offset = symbol.address.checked_sub(section.address)?;
+        section.data.get(offset as usize..offset as usize + symbol.size as usize)
+    }
+
+    pub fn symbol_by_name(&self, name: &str) -> Option<usize> {
+        self.symbols.iter().position(|symbol| symbol.section.is_some() && symbol.name == name)
+    }
+
+    pub fn get_flow_analysis_result(&self, symbol: &Symbol) -> Option<&dyn FlowAnalysisResult> {
+        let key = symbol.section.unwrap_or_default() as u64 * 1024 * 1024 * 1024 + symbol.address;
+        self.flow_analysis_results.get(&key).map(|result| result.as_ref())
+    }
+
+    pub fn add_flow_analysis_result(
+        &mut self,
+        symbol: &Symbol,
+        result: Box<dyn FlowAnalysisResult>,
+    ) {
+        let key = symbol.section.unwrap_or_default() as u64 * 1024 * 1024 * 1024 + symbol.address;
+        self.flow_analysis_results.insert(key, result);
+    }
+
+    pub fn has_flow_analysis_result(&self) -> bool { !self.flow_analysis_results.is_empty() }
+}
+
+#[derive(Debug, Clone, Eq, PartialEq, Hash)]
+pub struct Relocation {
     pub flags: RelocationFlags,
     pub address: u64,
-    pub target: ObjSymbol,
+    pub target_symbol: usize,
     pub addend: i64,
 }
 
-#[derive(Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash, Default)]
-pub struct SymbolRef {
-    pub section_idx: usize,
-    pub symbol_idx: usize,
+#[derive(Debug, Copy, Clone, Eq, PartialEq, Hash)]
+pub enum RelocationFlags {
+    Elf(u32),
+    Coff(u16),
 }
 
-pub const SECTION_COMMON: usize = usize::MAX - 1;
+#[derive(Debug, Copy, Clone)]
+pub struct ResolvedRelocation<'a> {
+    pub relocation: &'a Relocation,
+    pub symbol: &'a Symbol,
+}
 
-impl ObjInfo {
-    pub fn section_symbol(&self, symbol_ref: SymbolRef) -> (Option<&ObjSection>, &ObjSymbol) {
-        if symbol_ref.section_idx == SECTION_COMMON {
-            let symbol = &self.common[symbol_ref.symbol_idx];
-            return (None, symbol);
+#[derive(Debug, Copy, Clone)]
+pub struct ResolvedSymbol<'obj> {
+    pub obj: &'obj Object,
+    pub symbol_index: usize,
+    pub symbol: &'obj Symbol,
+    pub section_index: usize,
+    pub section: &'obj Section,
+    pub data: &'obj [u8],
+}
+
+#[derive(Debug, Copy, Clone)]
+pub struct ResolvedInstructionRef<'obj> {
+    pub ins_ref: InstructionRef,
+    pub symbol_index: usize,
+    pub symbol: &'obj Symbol,
+    pub section_index: usize,
+    pub section: &'obj Section,
+    pub code: &'obj [u8],
+    pub relocation: Option<ResolvedRelocation<'obj>>,
+}
+
+static DUMMY_SYMBOL: Symbol = Symbol {
+    name: String::new(),
+    demangled_name: None,
+    address: 0,
+    size: 0,
+    kind: SymbolKind::Unknown,
+    section: None,
+    flags: SymbolFlagSet::empty(),
+    align: None,
+    virtual_address: None,
+};
+
+static DUMMY_SECTION: Section = Section {
+    id: String::new(),
+    name: String::new(),
+    address: 0,
+    size: 0,
+    kind: SectionKind::Unknown,
+    data: SectionData(Vec::new()),
+    flags: SectionFlagSet::empty(),
+    align: None,
+    relocations: Vec::new(),
+    line_info: BTreeMap::new(),
+    virtual_address: None,
+};
+
+impl Default for ResolvedInstructionRef<'_> {
+    fn default() -> Self {
+        Self {
+            ins_ref: InstructionRef::default(),
+            symbol_index: 0,
+            symbol: &DUMMY_SYMBOL,
+            section_index: 0,
+            section: &DUMMY_SECTION,
+            code: &[],
+            relocation: None,
         }
-        let section = &self.sections[symbol_ref.section_idx];
-        let symbol = &section.symbols[symbol_ref.symbol_idx];
-        (Some(section), symbol)
     }
 }

objdiff-core/src/obj/snapshots/objdiff_core__obj__read__test__combine_sections.snap

@@ -0,0 +1,165 @@
+---
+source: objdiff-core/src/obj/read.rs
+expression: "(sections, symbols)"
+---
+(
+    [
+        Section {
+            id: ".text-0",
+            name: ".text",
+            address: 0,
+            size: 8,
+            kind: Code,
+            data: SectionData(
+                8,
+            ),
+            flags: FlagSet(),
+            align: None,
+            relocations: [
+                Relocation {
+                    flags: Elf(
+                        0,
+                    ),
+                    address: 0,
+                    target_symbol: 0,
+                    addend: 4,
+                },
+                Relocation {
+                    flags: Elf(
+                        0,
+                    ),
+                    address: 2,
+                    target_symbol: 1,
+                    addend: 0,
+                },
+                Relocation {
+                    flags: Elf(
+                        0,
+                    ),
+                    address: 4,
+                    target_symbol: 0,
+                    addend: 10,
+                },
+            ],
+            line_info: {},
+            virtual_address: None,
+        },
+        Section {
+            id: ".data-combined",
+            name: ".data",
+            address: 0,
+            size: 12,
+            kind: Data,
+            data: SectionData(
+                12,
+            ),
+            flags: FlagSet(Combined),
+            align: None,
+            relocations: [
+                Relocation {
+                    flags: Elf(
+                        0,
+                    ),
+                    address: 0,
+                    target_symbol: 2,
+                    addend: 0,
+                },
+                Relocation {
+                    flags: Elf(
+                        0,
+                    ),
+                    address: 4,
+                    target_symbol: 2,
+                    addend: 0,
+                },
+            ],
+            line_info: {
+                0: 1,
+                8: 2,
+            },
+            virtual_address: None,
+        },
+        Section {
+            id: ".data-1",
+            name: ".data",
+            address: 0,
+            size: 0,
+            kind: Unknown,
+            data: SectionData(
+                0,
+            ),
+            flags: FlagSet(),
+            align: None,
+            relocations: [],
+            line_info: {},
+            virtual_address: None,
+        },
+        Section {
+            id: ".data-2",
+            name: ".data",
+            address: 0,
+            size: 0,
+            kind: Unknown,
+            data: SectionData(
+                0,
+            ),
+            flags: FlagSet(),
+            align: None,
+            relocations: [],
+            line_info: {},
+            virtual_address: None,
+        },
+    ],
+    [
+        Symbol {
+            name: ".data",
+            demangled_name: None,
+            address: 0,
+            size: 0,
+            kind: Section,
+            section: Some(
+                1,
+            ),
+            flags: FlagSet(),
+            align: None,
+            virtual_address: None,
+        },
+        Symbol {
+            name: "symbol",
+            demangled_name: None,
+            address: 4,
+            size: 4,
+            kind: Object,
+            section: Some(
+                1,
+            ),
+            flags: FlagSet(),
+            align: None,
+            virtual_address: None,
+        },
+        Symbol {
+            name: "function",
+            demangled_name: None,
+            address: 0,
+            size: 8,
+            kind: Function,
+            section: Some(
+                0,
+            ),
+            flags: FlagSet(),
+            align: None,
+            virtual_address: None,
+        },
+        Symbol {
+            name: ".data",
+            demangled_name: None,
+            address: 0,
+            size: 0,
+            kind: Unknown,
+            section: None,
+            flags: FlagSet(),
+            align: None,
+            virtual_address: None,
+        },
+    ],
+)

objdiff-core/src/obj/split_meta.rs

@@ -1,6 +1,11 @@
-use std::{io, io::Write};
+use alloc::{string::String, vec, vec::Vec};
 
-use object::{elf::SHT_NOTE, Endian, ObjectSection};
+use anyhow::{Result, anyhow};
+use object::{Endian, ObjectSection, elf::SHT_NOTE};
+
+#[cfg(feature = "std")]
+use crate::util::align_data_to_4;
+use crate::util::align_size_to_4;
 
 pub const SPLITMETA_SECTION: &str = ".note.split";
 pub const SHT_SPLITMETA: u32 = SHT_NOTE;
@@ -27,10 +32,10 @@ const NT_SPLIT_MODULE_ID: u32 = u32::from_be_bytes(*b"MODI");
 const NT_SPLIT_VIRTUAL_ADDRESSES: u32 = u32::from_be_bytes(*b"VIRT");
 
 impl SplitMeta {
-    pub fn from_section<E>(section: object::Section, e: E, is_64: bool) -> io::Result<Self>
+    pub fn from_section<E>(section: object::Section, e: E, is_64: bool) -> Result<Self>
     where E: Endian {
         let mut result = SplitMeta::default();
-        let data = section.uncompressed_data().map_err(object_io_error)?;
+        let data = section.uncompressed_data().map_err(object_error)?;
         let mut iter = NoteIterator::new(data.as_ref(), section.align(), e, is_64)?;
         while let Some(note) = iter.next(e)? {
             if note.name != ELF_NOTE_SPLIT {
@@ -38,20 +43,19 @@ impl SplitMeta {
             }
             match note.n_type {
                 NT_SPLIT_GENERATOR => {
-                    let string = String::from_utf8(note.desc.to_vec())
-                        .map_err(|e| io::Error::new(io::ErrorKind::InvalidData, e))?;
+                    let string =
+                        String::from_utf8(note.desc.to_vec()).map_err(anyhow::Error::new)?;
                     result.generator = Some(string);
                 }
                 NT_SPLIT_MODULE_NAME => {
-                    let string = String::from_utf8(note.desc.to_vec())
-                        .map_err(|e| io::Error::new(io::ErrorKind::InvalidData, e))?;
+                    let string =
+                        String::from_utf8(note.desc.to_vec()).map_err(anyhow::Error::new)?;
                     result.module_name = Some(string);
                 }
                 NT_SPLIT_MODULE_ID => {
-                    result.module_id =
-                        Some(e.read_u32_bytes(note.desc.try_into().map_err(|_| {
-                            io::Error::new(io::ErrorKind::InvalidData, "Invalid module ID size")
-                        })?));
+                    result.module_id = Some(e.read_u32_bytes(
+                        note.desc.try_into().map_err(|_| anyhow!("Invalid module ID size"))?,
+                    ));
                 }
                 NT_SPLIT_VIRTUAL_ADDRESSES => {
                     let vec = if is_64 {
@@ -79,10 +83,11 @@ impl SplitMeta {
         Ok(result)
     }
 
-    pub fn to_writer<E, W>(&self, writer: &mut W, e: E, is_64: bool) -> io::Result<()>
+    #[cfg(feature = "std")]
+    pub fn to_writer<E, W>(&self, writer: &mut W, e: E, is_64: bool) -> std::io::Result<()>
     where
         E: Endian,
-        W: Write + ?Sized,
+        W: std::io::Write + ?Sized,
     {
         if let Some(generator) = &self.generator {
             write_note_header(writer, e, NT_SPLIT_GENERATOR, generator.len())?;
@@ -137,10 +142,9 @@ impl SplitMeta {
     }
 }
 
-/// Convert an object::read::Error to an io::Error.
-fn object_io_error(err: object::read::Error) -> io::Error {
-    io::Error::new(io::ErrorKind::InvalidData, err)
-}
+/// Convert an object::read::Error to a String.
+#[inline]
+fn object_error(err: object::read::Error) -> anyhow::Error { anyhow::Error::new(err) }
 
 /// An ELF note entry.
 struct Note<'data> {
@@ -161,27 +165,27 @@ where E: Endian
 impl<'data, E> NoteIterator<'data, E>
 where E: Endian
 {
-    fn new(data: &'data [u8], align: u64, e: E, is_64: bool) -> io::Result<Self> {
+    fn new(data: &'data [u8], align: u64, e: E, is_64: bool) -> Result<Self> {
         Ok(if is_64 {
             NoteIterator::B64(
-                object::read::elf::NoteIterator::new(e, align, data).map_err(object_io_error)?,
+                object::read::elf::NoteIterator::new(e, align, data).map_err(object_error)?,
             )
         } else {
             NoteIterator::B32(
                 object::read::elf::NoteIterator::new(e, align as u32, data)
-                    .map_err(object_io_error)?,
+                    .map_err(object_error)?,
             )
         })
     }
 
-    fn next(&mut self, e: E) -> io::Result<Option<Note<'data>>> {
+    fn next(&mut self, e: E) -> Result<Option<Note<'data>>> {
         match self {
-            NoteIterator::B32(iter) => Ok(iter.next().map_err(object_io_error)?.map(|note| Note {
+            NoteIterator::B32(iter) => Ok(iter.next().map_err(object_error)?.map(|note| Note {
                 n_type: note.n_type(e),
                 name: note.name(),
                 desc: note.desc(),
             })),
-            NoteIterator::B64(iter) => Ok(iter.next().map_err(object_io_error)?.map(|note| Note {
+            NoteIterator::B64(iter) => Ok(iter.next().map_err(object_error)?.map(|note| Note {
                 n_type: note.n_type(e),
                 name: note.name(),
                 desc: note.desc(),
@@ -190,16 +194,6 @@ where E: Endian
     }
 }
 
-fn align_size_to_4(size: usize) -> usize { (size + 3) & !3 }
-
-fn align_data_to_4<W: Write + ?Sized>(writer: &mut W, len: usize) -> io::Result<()> {
-    const ALIGN_BYTES: &[u8] = &[0; 4];
-    if len % 4 != 0 {
-        writer.write_all(&ALIGN_BYTES[..4 - len % 4])?;
-    }
-    Ok(())
-}
-
 // ELF note format:
 // Name Size | 4 bytes (integer)
 // Desc Size | 4 bytes (integer)
@@ -208,10 +202,11 @@ fn align_data_to_4<W: Write + ?Sized>(writer: &mut W, len: usize) -> io::Result<
 // Desc | variable size, padded to a 4 byte boundary
 const NOTE_HEADER_SIZE: usize = 12 + ((ELF_NOTE_SPLIT.len() + 4) & !3);
 
-fn write_note_header<E, W>(writer: &mut W, e: E, kind: u32, desc_len: usize) -> io::Result<()>
+#[cfg(feature = "std")]
+fn write_note_header<E, W>(writer: &mut W, e: E, kind: u32, desc_len: usize) -> std::io::Result<()>
 where
     E: Endian,
-    W: Write + ?Sized,
+    W: std::io::Write + ?Sized,
 {
     writer.write_all(&e.write_u32_bytes(ELF_NOTE_SPLIT.len() as u32 + 1))?; // Name Size
     writer.write_all(&e.write_u32_bytes(desc_len as u32))?; // Desc Size

objdiff-core/src/util.rs

@@ -1,18 +1,15 @@
-use std::{
-    fmt::{LowerHex, UpperHex},
-    io::Read,
-};
+use alloc::{format, vec::Vec};
+use core::fmt;
 
-use anyhow::Result;
-use byteorder::{NativeEndian, ReadBytesExt};
+use anyhow::{Result, ensure};
 use num_traits::PrimInt;
 use object::{Endian, Object};
 
 // https://stackoverflow.com/questions/44711012/how-do-i-format-a-signed-integer-to-a-sign-aware-hexadecimal-representation
-pub struct ReallySigned<N: PrimInt>(pub(crate) N);
+pub struct ReallySigned<N: PrimInt>(pub N);
 
-impl<N: PrimInt> LowerHex for ReallySigned<N> {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
+impl<N: PrimInt> fmt::LowerHex for ReallySigned<N> {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         let num = self.0.to_i64().unwrap();
         let prefix = if f.alternate() { "0x" } else { "" };
         let bare_hex = format!("{:x}", num.abs());
@@ -20,8 +17,8 @@ impl<N: PrimInt> LowerHex for ReallySigned<N> {
     }
 }
 
-impl<N: PrimInt> UpperHex for ReallySigned<N> {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
+impl<N: PrimInt> fmt::UpperHex for ReallySigned<N> {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         let num = self.0.to_i64().unwrap();
         let prefix = if f.alternate() { "0x" } else { "" };
         let bare_hex = format!("{:X}", num.abs());
@@ -29,10 +26,66 @@ impl<N: PrimInt> UpperHex for ReallySigned<N> {
     }
 }
 
-pub fn read_u32<R: Read>(obj_file: &object::File, reader: &mut R) -> Result<u32> {
-    Ok(obj_file.endianness().read_u32(reader.read_u32::<NativeEndian>()?))
+pub fn read_u32(obj_file: &object::File, reader: &mut &[u8]) -> Result<u32> {
+    ensure!(reader.len() >= 4, "Not enough bytes to read u32");
+    let value = u32::from_ne_bytes(reader[..4].try_into()?);
+    *reader = &reader[4..];
+    Ok(obj_file.endianness().read_u32(value))
 }
 
-pub fn read_u16<R: Read>(obj_file: &object::File, reader: &mut R) -> Result<u16> {
-    Ok(obj_file.endianness().read_u16(reader.read_u16::<NativeEndian>()?))
+pub fn read_u16(obj_file: &object::File, reader: &mut &[u8]) -> Result<u16> {
+    ensure!(reader.len() >= 2, "Not enough bytes to read u16");
+    let value = u16::from_ne_bytes(reader[..2].try_into()?);
+    *reader = &reader[2..];
+    Ok(obj_file.endianness().read_u16(value))
+}
+
+pub fn align_size_to_4(size: usize) -> usize { (size + 3) & !3 }
+
+#[cfg(feature = "std")]
+pub fn align_data_to_4<W: std::io::Write + ?Sized>(
+    writer: &mut W,
+    len: usize,
+) -> std::io::Result<()> {
+    const ALIGN_BYTES: &[u8] = &[0; 4];
+    if !len.is_multiple_of(4) {
+        writer.write_all(&ALIGN_BYTES[..4 - len % 4])?;
+    }
+    Ok(())
+}
+
+pub fn align_u64_to(len: u64, align: u64) -> u64 { len + ((align - (len % align)) % align) }
+
+pub fn align_data_slice_to(data: &mut Vec<u8>, align: u64) {
+    data.resize(align_u64_to(data.len() as u64, align) as usize, 0);
+}
+
+// Float where we specifically care about comparing the raw bits rather than
+// caring about IEEE semantics.
+#[derive(Copy, Clone, Debug)]
+pub struct RawFloat(pub f32);
+impl PartialEq for RawFloat {
+    fn eq(&self, other: &Self) -> bool { self.0.to_bits() == other.0.to_bits() }
+}
+impl Eq for RawFloat {}
+impl Ord for RawFloat {
+    fn cmp(&self, other: &Self) -> core::cmp::Ordering { self.0.to_bits().cmp(&other.0.to_bits()) }
+}
+impl PartialOrd for RawFloat {
+    fn partial_cmp(&self, other: &Self) -> Option<core::cmp::Ordering> { Some(self.cmp(other)) }
+}
+
+// Double where we specifically care about comparing the raw bits rather than
+// caring about IEEE semantics.
+#[derive(Copy, Clone, Debug)]
+pub struct RawDouble(pub f64);
+impl PartialEq for RawDouble {
+    fn eq(&self, other: &Self) -> bool { self.0.to_bits() == other.0.to_bits() }
+}
+impl Eq for RawDouble {}
+impl Ord for RawDouble {
+    fn cmp(&self, other: &Self) -> core::cmp::Ordering { self.0.to_bits().cmp(&other.0.to_bits()) }
+}
+impl PartialOrd for RawDouble {
+    fn partial_cmp(&self, other: &Self) -> Option<core::cmp::Ordering> { Some(self.cmp(other)) }
 }

objdiff-core/tests/arch_arm.rs

@@ -0,0 +1,46 @@
+use objdiff_core::{diff, obj};
+
+mod common;
+
+#[test]
+#[cfg(feature = "arm")]
+fn read_arm() {
+    let diff_config = diff::DiffObjConfig { ..Default::default() };
+    let obj = obj::read::parse(include_object!("data/arm/LinkStateItem.o"), &diff_config).unwrap();
+    insta::assert_debug_snapshot!(obj);
+    let symbol_idx =
+        obj.symbols.iter().position(|s| s.name == "_ZN13LinkStateItem12OnStateLeaveEi").unwrap();
+    let diff = diff::code::no_diff_code(&obj, symbol_idx, &diff_config).unwrap();
+    insta::assert_debug_snapshot!(diff.instruction_rows);
+    let output = common::display_diff(&obj, &diff, symbol_idx, &diff_config);
+    insta::assert_snapshot!(output);
+}
+
+#[test]
+#[cfg(feature = "arm")]
+fn read_thumb() {
+    let diff_config = diff::DiffObjConfig { ..Default::default() };
+    let obj = obj::read::parse(include_object!("data/arm/thumb.o"), &diff_config).unwrap();
+    insta::assert_debug_snapshot!(obj);
+    let symbol_idx = obj
+        .symbols
+        .iter()
+        .position(|s| s.name == "THUMB_BRANCH_ServerDisplay_UncategorizedMove")
+        .unwrap();
+    let diff = diff::code::no_diff_code(&obj, symbol_idx, &diff_config).unwrap();
+    insta::assert_debug_snapshot!(diff.instruction_rows);
+    let output = common::display_diff(&obj, &diff, symbol_idx, &diff_config);
+    insta::assert_snapshot!(output);
+}
+
+#[test]
+#[cfg(feature = "arm")]
+fn combine_text_sections() {
+    let diff_config = diff::DiffObjConfig { combine_text_sections: true, ..Default::default() };
+    let obj = obj::read::parse(include_object!("data/arm/enemy300.o"), &diff_config).unwrap();
+    let symbol_idx = obj.symbols.iter().position(|s| s.name == "Enemy300Draw").unwrap();
+    let diff = diff::code::no_diff_code(&obj, symbol_idx, &diff_config).unwrap();
+    insta::assert_debug_snapshot!(diff.instruction_rows);
+    let output = common::display_diff(&obj, &diff, symbol_idx, &diff_config);
+    insta::assert_snapshot!(output);
+}

objdiff-core/tests/arch_mips.rs

@@ -0,0 +1,47 @@
+use objdiff_core::{diff, obj};
+
+mod common;
+
+#[test]
+#[cfg(feature = "mips")]
+fn read_mips() {
+    let diff_config = diff::DiffObjConfig { mips_register_prefix: true, ..Default::default() };
+    let obj = obj::read::parse(include_object!("data/mips/main.c.o"), &diff_config).unwrap();
+    insta::assert_debug_snapshot!(obj);
+    let symbol_idx = obj.symbols.iter().position(|s| s.name == "ControlEntry").unwrap();
+    let diff = diff::code::no_diff_code(&obj, symbol_idx, &diff_config).unwrap();
+    insta::assert_debug_snapshot!(diff.instruction_rows);
+    let output = common::display_diff(&obj, &diff, symbol_idx, &diff_config);
+    insta::assert_snapshot!(output);
+}
+
+#[test]
+#[cfg(feature = "mips")]
+fn cross_endian_diff() {
+    let diff_config = diff::DiffObjConfig::default();
+    let obj_be = obj::read::parse(include_object!("data/mips/code_be.o"), &diff_config).unwrap();
+    assert_eq!(obj_be.endianness, object::Endianness::Big);
+    let obj_le = obj::read::parse(include_object!("data/mips/code_le.o"), &diff_config).unwrap();
+    assert_eq!(obj_le.endianness, object::Endianness::Little);
+    let left_symbol_idx = obj_be.symbols.iter().position(|s| s.name == "func_00000000").unwrap();
+    let right_symbol_idx =
+        obj_le.symbols.iter().position(|s| s.name == "func_00000000__FPcPc").unwrap();
+    let (left_diff, right_diff) =
+        diff::code::diff_code(&obj_be, &obj_le, left_symbol_idx, right_symbol_idx, &diff_config)
+            .unwrap();
+    // Although the objects differ in endianness, the instructions should match.
+    assert_eq!(left_diff.instruction_rows[0].kind, diff::InstructionDiffKind::None);
+    assert_eq!(right_diff.instruction_rows[0].kind, diff::InstructionDiffKind::None);
+    assert_eq!(left_diff.instruction_rows[1].kind, diff::InstructionDiffKind::None);
+    assert_eq!(right_diff.instruction_rows[1].kind, diff::InstructionDiffKind::None);
+    assert_eq!(left_diff.instruction_rows[2].kind, diff::InstructionDiffKind::None);
+    assert_eq!(right_diff.instruction_rows[2].kind, diff::InstructionDiffKind::None);
+}
+
+#[test]
+#[cfg(feature = "mips")]
+fn filter_non_matching() {
+    let diff_config = diff::DiffObjConfig::default();
+    let obj = obj::read::parse(include_object!("data/mips/vw_main.c.o"), &diff_config).unwrap();
+    insta::assert_debug_snapshot!(obj.symbols);
+}

objdiff-core/tests/arch_ppc.rs

@@ -0,0 +1,101 @@
+use objdiff_core::{
+    diff::{self, display},
+    obj,
+    obj::SectionKind,
+};
+
+mod common;
+
+#[test]
+#[cfg(feature = "ppc")]
+fn read_ppc() {
+    let diff_config = diff::DiffObjConfig::default();
+    let obj = obj::read::parse(include_object!("data/ppc/IObj.o"), &diff_config).unwrap();
+    insta::assert_debug_snapshot!(obj);
+    let symbol_idx =
+        obj.symbols.iter().position(|s| s.name == "Type2Text__10SObjectTagFUi").unwrap();
+    let diff = diff::code::no_diff_code(&obj, symbol_idx, &diff_config).unwrap();
+    insta::assert_debug_snapshot!(diff.instruction_rows);
+    let output = common::display_diff(&obj, &diff, symbol_idx, &diff_config);
+    insta::assert_snapshot!(output);
+}
+
+#[test]
+#[cfg(feature = "ppc")]
+fn read_dwarf1_line_info() {
+    let diff_config = diff::DiffObjConfig::default();
+    let obj = obj::read::parse(include_object!("data/ppc/m_Do_hostIO.o"), &diff_config).unwrap();
+    let line_infos = obj
+        .sections
+        .iter()
+        .filter(|s| s.kind == SectionKind::Code)
+        .map(|s| s.line_info.clone())
+        .collect::<Vec<_>>();
+    insta::assert_debug_snapshot!(line_infos);
+}
+
+#[test]
+#[cfg(feature = "ppc")]
+fn read_extab() {
+    let diff_config = diff::DiffObjConfig::default();
+    let obj = obj::read::parse(include_object!("data/ppc/NMWException.o"), &diff_config).unwrap();
+    insta::assert_debug_snapshot!(obj);
+}
+
+#[test]
+#[cfg(feature = "ppc")]
+fn diff_ppc() {
+    let diff_config = diff::DiffObjConfig::default();
+    let mapping_config = diff::MappingConfig::default();
+    let target_obj =
+        obj::read::parse(include_object!("data/ppc/CDamageVulnerability_target.o"), &diff_config)
+            .unwrap();
+    let base_obj =
+        obj::read::parse(include_object!("data/ppc/CDamageVulnerability_base.o"), &diff_config)
+            .unwrap();
+    let diff =
+        diff::diff_objs(Some(&target_obj), Some(&base_obj), None, &diff_config, &mapping_config)
+            .unwrap();
+
+    let target_diff = diff.left.as_ref().unwrap();
+    let base_diff = diff.right.as_ref().unwrap();
+    let sections_display = display::display_sections(
+        &target_obj,
+        target_diff,
+        display::SymbolFilter::None,
+        false,
+        false,
+        true,
+    );
+    insta::assert_debug_snapshot!(sections_display);
+
+    let target_symbol_idx = target_obj
+        .symbols
+        .iter()
+        .position(|s| s.name == "WeaponHurts__20CDamageVulnerabilityCFRC11CWeaponModei")
+        .unwrap();
+    let target_symbol_diff = &target_diff.symbols[target_symbol_idx];
+    let base_symbol_idx = base_obj
+        .symbols
+        .iter()
+        .position(|s| s.name == "WeaponHurts__20CDamageVulnerabilityCFRC11CWeaponModei")
+        .unwrap();
+    let base_symbol_diff = &base_diff.symbols[base_symbol_idx];
+    assert_eq!(target_symbol_diff.target_symbol, Some(base_symbol_idx));
+    assert_eq!(base_symbol_diff.target_symbol, Some(target_symbol_idx));
+    insta::assert_debug_snapshot!((target_symbol_diff, base_symbol_diff));
+}
+
+#[test]
+#[cfg(feature = "ppc")]
+fn read_vmx128_coff() {
+    let diff_config = diff::DiffObjConfig { combine_data_sections: true, ..Default::default() };
+    let obj = obj::read::parse(include_object!("data/ppc/vmx128.obj"), &diff_config).unwrap();
+    insta::assert_debug_snapshot!(obj);
+    let symbol_idx =
+        obj.symbols.iter().position(|s| s.name == "?FloatingPointExample@@YAXXZ").unwrap();
+    let diff = diff::code::no_diff_code(&obj, symbol_idx, &diff_config).unwrap();
+    insta::assert_debug_snapshot!(diff.instruction_rows);
+    let output = common::display_diff(&obj, &diff, symbol_idx, &diff_config);
+    insta::assert_snapshot!(output);
+}

objdiff-core/tests/arch_x86.rs

@@ -0,0 +1,79 @@
+use objdiff_core::{diff, diff::display::SymbolFilter, obj};
+
+mod common;
+
+#[test]
+#[cfg(feature = "x86")]
+fn read_x86() {
+    let diff_config = diff::DiffObjConfig::default();
+    let obj = obj::read::parse(include_object!("data/x86/staticdebug.obj"), &diff_config).unwrap();
+    insta::assert_debug_snapshot!(obj);
+    let symbol_idx = obj.symbols.iter().position(|s| s.name == "?PrintThing@@YAXXZ").unwrap();
+    let diff = diff::code::no_diff_code(&obj, symbol_idx, &diff_config).unwrap();
+    insta::assert_debug_snapshot!(diff.instruction_rows);
+    let output = common::display_diff(&obj, &diff, symbol_idx, &diff_config);
+    insta::assert_snapshot!(output);
+}
+
+#[test]
+#[cfg(feature = "x86")]
+fn read_x86_combine_sections() {
+    let diff_config = diff::DiffObjConfig {
+        combine_data_sections: true,
+        combine_text_sections: true,
+        ..Default::default()
+    };
+    let obj = obj::read::parse(include_object!("data/x86/rtest.obj"), &diff_config).unwrap();
+    insta::assert_debug_snapshot!(obj.sections);
+}
+
+#[test]
+#[cfg(feature = "x86")]
+fn read_x86_64() {
+    let diff_config = diff::DiffObjConfig::default();
+    let obj = obj::read::parse(include_object!("data/x86_64/vs2022.o"), &diff_config).unwrap();
+    insta::assert_debug_snapshot!(obj);
+    let symbol_idx =
+        obj.symbols.iter().position(|s| s.name == "?Dot@Vector@@QEAAMPEAU1@@Z").unwrap();
+    let diff = diff::code::no_diff_code(&obj, symbol_idx, &diff_config).unwrap();
+    insta::assert_debug_snapshot!(diff.instruction_rows);
+    let output = common::display_diff(&obj, &diff, symbol_idx, &diff_config);
+    insta::assert_snapshot!(output);
+}
+
+#[test]
+#[cfg(feature = "x86")]
+fn display_section_ordering() {
+    let diff_config = diff::DiffObjConfig::default();
+    let obj = obj::read::parse(include_object!("data/x86/basenode.obj"), &diff_config).unwrap();
+    let obj_diff =
+        diff::diff_objs(Some(&obj), None, None, &diff_config, &diff::MappingConfig::default())
+            .unwrap()
+            .left
+            .unwrap();
+    let section_display =
+        diff::display::display_sections(&obj, &obj_diff, SymbolFilter::None, false, false, false);
+    insta::assert_debug_snapshot!(section_display);
+}
+
+#[test]
+#[cfg(feature = "x86")]
+fn read_x86_jumptable() {
+    let diff_config = diff::DiffObjConfig::default();
+    let obj = obj::read::parse(include_object!("data/x86/jumptable.o"), &diff_config).unwrap();
+    insta::assert_debug_snapshot!(obj);
+    let symbol_idx = obj.symbols.iter().position(|s| s.name == "?test@@YAHH@Z").unwrap();
+    let diff = diff::code::no_diff_code(&obj, symbol_idx, &diff_config).unwrap();
+    insta::assert_debug_snapshot!(diff.instruction_rows);
+    let output = common::display_diff(&obj, &diff, symbol_idx, &diff_config);
+    insta::assert_snapshot!(output);
+}
+
+// Inferred size of functions should ignore symbols with specific prefixes
+#[test]
+#[cfg(feature = "x86")]
+fn read_x86_local_labels() {
+    let diff_config = diff::DiffObjConfig::default();
+    let obj = obj::read::parse(include_object!("data/x86/local_labels.obj"), &diff_config).unwrap();
+    insta::assert_debug_snapshot!(obj);
+}

objdiff-core/tests/common.rs

@@ -0,0 +1,52 @@
+use objdiff_core::{
+    diff::{DiffObjConfig, SymbolDiff, display::DiffTextSegment},
+    obj::Object,
+};
+
+pub fn display_diff(
+    obj: &Object,
+    diff: &SymbolDiff,
+    symbol_idx: usize,
+    diff_config: &DiffObjConfig,
+) -> String {
+    let mut output = String::new();
+    for row in &diff.instruction_rows {
+        output.push('[');
+        let mut separator = false;
+        objdiff_core::diff::display::display_row(obj, symbol_idx, row, diff_config, |segment| {
+            if separator {
+                output.push_str(", ");
+            } else {
+                separator = true;
+            }
+            let DiffTextSegment { text, color, pad_to } = segment;
+            output.push_str(&format!("({text:?}, {color:?}, {pad_to:?})"));
+            Ok(())
+        })
+        .unwrap();
+        output.push_str("]\n");
+    }
+    output
+}
+
+#[repr(C)]
+pub struct AlignedAs<Align, Bytes: ?Sized> {
+    pub _align: [Align; 0],
+    pub bytes: Bytes,
+}
+
+#[macro_export]
+macro_rules! include_bytes_align_as {
+    ($align_ty:ty, $path:literal) => {{
+        static ALIGNED: &common::AlignedAs<$align_ty, [u8]> =
+            &common::AlignedAs { _align: [], bytes: *include_bytes!($path) };
+        &ALIGNED.bytes
+    }};
+}
+
+#[macro_export]
+macro_rules! include_object {
+    ($path:literal) => {
+        include_bytes_align_as!(u64, $path)
+    };
+}

objdiff-core/tests/snapshots/arch_arm__combine_text_sections-2.snap

@@ -0,0 +1,7 @@
+---
+source: objdiff-core/tests/arch_arm.rs
+expression: output
+---
+[(Line(90), Dim, 5), (Address(0), Normal, 5), (Spacing(4), Normal, 0), (Opcode("ldr", 32799), Normal, 10), (Argument(Opaque("r12")), Normal, 0), (Basic(", "), Normal, 0), (Basic("["), Normal, 0), (Argument(Opaque("pc")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Signed(0)), Normal, 0), (Basic("]"), Normal, 0), (Basic(" (->"), Normal, 0), (BranchDest(8), Normal, 0), (Basic(")"), Normal, 0), (Eol, Normal, 0)]
+[(Line(90), Dim, 5), (Address(4), Normal, 5), (Spacing(4), Normal, 0), (Opcode("bx", 32779), Normal, 10), (Argument(Opaque("r12")), Normal, 0), (Eol, Normal, 0)]
+[(Line(90), Dim, 5), (Address(8), Normal, 5), (Spacing(4), Normal, 0), (Opcode(".word", 65535), Normal, 10), (Symbol(Symbol { name: "esEnemyDraw", demangled_name: None, address: 0, size: 0, kind: Unknown, section: None, flags: FlagSet(Global), align: None, virtual_address: None }), Bright, 0), (Eol, Normal, 0)]

objdiff-core/tests/snapshots/arch_arm__combine_text_sections.snap

@@ -0,0 +1,48 @@
+---
+source: objdiff-core/tests/arch_arm.rs
+expression: diff.instruction_rows
+---
+[
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 76,
+                size: 4,
+                opcode: 32799,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 80,
+                size: 4,
+                opcode: 32779,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 84,
+                size: 4,
+                opcode: 65535,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+]

objdiff-core/tests/snapshots/arch_arm__read_arm-3.snap

@@ -0,0 +1,112 @@
+---
+source: objdiff-core/tests/arch_arm.rs
+expression: output
+---
+[(Address(0), Normal, 5), (Spacing(4), Normal, 0), (Opcode("stmdb", 32895), Normal, 10), (Argument(Opaque("sp")), Normal, 0), (Argument(Opaque("!")), Normal, 0), (Basic(", "), Normal, 0), (Basic("{"), Normal, 0), (Argument(Opaque("r4")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r5")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r6")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("lr")), Normal, 0), (Basic("}"), Normal, 0), (Eol, Normal, 0)]
+[(Address(4), Normal, 5), (Spacing(4), Normal, 0), (Opcode("mov", 32818), Normal, 10), (Argument(Opaque("r5")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r0")), Normal, 0), (Eol, Normal, 0)]
+[(Address(8), Normal, 5), (Spacing(4), Normal, 0), (Opcode("mov", 32818), Normal, 10), (Argument(Opaque("r4")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r1")), Normal, 0), (Eol, Normal, 0)]
+[(Address(12), Normal, 5), (Spacing(4), Normal, 0), (Opcode("bl", 32774), Normal, 10), (Symbol(Symbol { name: "_ZN13LinkStateBase12OnStateLeaveEi", demangled_name: Some("LinkStateBase::OnStateLeave(int)"), address: 0, size: 0, kind: Unknown, section: None, flags: FlagSet(Global | Weak), align: None, virtual_address: None }), Bright, 0), (Addend(-8), Bright, 0), (Eol, Normal, 0)]
+[(Address(16), Normal, 5), (Spacing(4), Normal, 0), (Opcode("ldr", 32799), Normal, 10), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Basic("["), Normal, 0), (Argument(Opaque("r5")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Signed(20)), Normal, 0), (Basic("]"), Normal, 0), (Eol, Normal, 0)]
+[(Address(20), Normal, 5), (Spacing(4), Normal, 0), (Opcode("cmp", 32786), Normal, 10), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Unsigned(10)), Normal, 0), (Eol, Normal, 0)]
+[(Address(24), Normal, 5), (Spacing(4), Normal, 0), (Opcode("addls", 32770), Normal, 10), (Argument(Opaque("pc")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("pc")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("lsl")), Normal, 0), (Basic(" #"), Normal, 0), (Argument(Unsigned(2)), Normal, 0), (Eol, Normal, 0)]
+[(Address(28), Normal, 5), (Spacing(4), Normal, 0), (Opcode("b", 32773), Normal, 10), (BranchDest(200), Normal, 0), (Basic(" ~>"), Rotating(0), 0), (Eol, Normal, 0)]
+[(Address(32), Normal, 5), (Spacing(4), Normal, 0), (Opcode("b", 32773), Normal, 10), (BranchDest(200), Normal, 0), (Basic(" ~>"), Rotating(0), 0), (Eol, Normal, 0)]
+[(Address(36), Normal, 5), (Spacing(4), Normal, 0), (Opcode("b", 32773), Normal, 10), (BranchDest(200), Normal, 0), (Basic(" ~>"), Rotating(0), 0), (Eol, Normal, 0)]
+[(Address(40), Normal, 5), (Spacing(4), Normal, 0), (Opcode("b", 32773), Normal, 10), (BranchDest(200), Normal, 0), (Basic(" ~>"), Rotating(0), 0), (Eol, Normal, 0)]
+[(Address(44), Normal, 5), (Spacing(4), Normal, 0), (Opcode("b", 32773), Normal, 10), (BranchDest(192), Normal, 0), (Basic(" ~>"), Rotating(1), 0), (Eol, Normal, 0)]
+[(Address(48), Normal, 5), (Spacing(4), Normal, 0), (Opcode("b", 32773), Normal, 10), (BranchDest(124), Normal, 0), (Basic(" ~>"), Rotating(2), 0), (Eol, Normal, 0)]
+[(Address(52), Normal, 5), (Spacing(4), Normal, 0), (Opcode("b", 32773), Normal, 10), (BranchDest(200), Normal, 0), (Basic(" ~>"), Rotating(0), 0), (Eol, Normal, 0)]
+[(Address(56), Normal, 5), (Spacing(4), Normal, 0), (Opcode("b", 32773), Normal, 10), (BranchDest(140), Normal, 0), (Basic(" ~>"), Rotating(3), 0), (Eol, Normal, 0)]
+[(Address(60), Normal, 5), (Spacing(4), Normal, 0), (Opcode("b", 32773), Normal, 10), (BranchDest(76), Normal, 0), (Basic(" ~>"), Rotating(4), 0), (Eol, Normal, 0)]
+[(Address(64), Normal, 5), (Spacing(4), Normal, 0), (Opcode("b", 32773), Normal, 10), (BranchDest(152), Normal, 0), (Basic(" ~>"), Rotating(5), 0), (Eol, Normal, 0)]
+[(Address(68), Normal, 5), (Spacing(4), Normal, 0), (Opcode("b", 32773), Normal, 10), (BranchDest(164), Normal, 0), (Basic(" ~>"), Rotating(6), 0), (Eol, Normal, 0)]
+[(Address(72), Normal, 5), (Spacing(4), Normal, 0), (Opcode("b", 32773), Normal, 10), (BranchDest(164), Normal, 0), (Basic(" ~>"), Rotating(6), 0), (Eol, Normal, 0)]
+[(Address(76), Normal, 5), (Basic(" ~> "), Rotating(4), 0), (Opcode("ldr", 32799), Normal, 10), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Basic("["), Normal, 0), (Argument(Opaque("pc")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Signed(336)), Normal, 0), (Basic("]"), Normal, 0), (Basic(" (->"), Normal, 0), (BranchDest(420), Normal, 0), (Basic(")"), Normal, 0), (Eol, Normal, 0)]
+[(Address(80), Normal, 5), (Spacing(4), Normal, 0), (Opcode("ldr", 32799), Normal, 10), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Basic("["), Normal, 0), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Signed(0)), Normal, 0), (Basic("]"), Normal, 0), (Eol, Normal, 0)]
+[(Address(84), Normal, 5), (Spacing(4), Normal, 0), (Opcode("bl", 32774), Normal, 10), (Symbol(Symbol { name: "_ZN18UnkStruct_027e103c19func_ov000_020cf01cEv", demangled_name: Some("UnkStruct_027e103c::func_ov000_020cf01c()"), address: 0, size: 0, kind: Unknown, section: None, flags: FlagSet(Global | Weak), align: None, virtual_address: None }), Bright, 0), (Addend(-8), Bright, 0), (Eol, Normal, 0)]
+[(Address(88), Normal, 5), (Spacing(4), Normal, 0), (Opcode("ldrb", 32800), Normal, 10), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Basic("["), Normal, 0), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Signed(224)), Normal, 0), (Basic("]"), Normal, 0), (Eol, Normal, 0)]
+[(Address(92), Normal, 5), (Spacing(4), Normal, 0), (Opcode("cmp", 32786), Normal, 10), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Unsigned(0)), Normal, 0), (Eol, Normal, 0)]
+[(Address(96), Normal, 5), (Spacing(4), Normal, 0), (Opcode("bne", 32773), Normal, 10), (BranchDest(108), Normal, 0), (Basic(" ~>"), Rotating(7), 0), (Eol, Normal, 0)]
+[(Address(100), Normal, 5), (Spacing(4), Normal, 0), (Opcode("bl", 32774), Normal, 10), (BranchDest(424), Normal, 0), (Basic(" ~>"), Rotating(8), 0), (Eol, Normal, 0)]
+[(Address(104), Normal, 5), (Spacing(4), Normal, 0), (Opcode("bl", 32774), Normal, 10), (Symbol(Symbol { name: "_ZN12EquipBombchu19func_ov014_0213ec64Ev", demangled_name: Some("EquipBombchu::func_ov014_0213ec64()"), address: 0, size: 0, kind: Unknown, section: None, flags: FlagSet(Global | Weak), align: None, virtual_address: None }), Bright, 0), (Addend(-8), Bright, 0), (Eol, Normal, 0)]
+[(Address(108), Normal, 5), (Basic(" ~> "), Rotating(7), 0), (Opcode("ldr", 32799), Normal, 10), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Basic("["), Normal, 0), (Argument(Opaque("pc")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Signed(308)), Normal, 0), (Basic("]"), Normal, 0), (Basic(" (->"), Normal, 0), (BranchDest(424), Normal, 0), (Basic(")"), Normal, 0), (Eol, Normal, 0)]
+[(Address(112), Normal, 5), (Spacing(4), Normal, 0), (Opcode("ldr", 32799), Normal, 10), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Basic("["), Normal, 0), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Signed(0)), Normal, 0), (Basic("]"), Normal, 0), (Eol, Normal, 0)]
+[(Address(116), Normal, 5), (Spacing(4), Normal, 0), (Opcode("blx", 32777), Normal, 10), (Symbol(Symbol { name: "_Z19func_ov014_0211fd04Pi", demangled_name: Some("func_ov014_0211fd04(int*)"), address: 0, size: 0, kind: Unknown, section: None, flags: FlagSet(Global | Weak), align: None, virtual_address: None }), Bright, 0), (Addend(-8), Bright, 0), (Eol, Normal, 0)]
+[(Address(120), Normal, 5), (Spacing(4), Normal, 0), (Opcode("b", 32773), Normal, 10), (BranchDest(200), Normal, 0), (Basic(" ~>"), Rotating(0), 0), (Eol, Normal, 0)]
+[(Address(124), Normal, 5), (Basic(" ~> "), Rotating(2), 0), (Opcode("mov", 32818), Normal, 10), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r5")), Normal, 0), (Eol, Normal, 0)]
+[(Address(128), Normal, 5), (Spacing(4), Normal, 0), (Opcode("mov", 32818), Normal, 10), (Argument(Opaque("r1")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r4")), Normal, 0), (Eol, Normal, 0)]
+[(Address(132), Normal, 5), (Spacing(4), Normal, 0), (Opcode("bl", 32774), Normal, 10), (Symbol(Symbol { name: "_ZN13LinkStateItem13StopUsingBombEi", demangled_name: Some("LinkStateItem::StopUsingBomb(int)"), address: 0, size: 0, kind: Unknown, section: None, flags: FlagSet(Global | Weak), align: None, virtual_address: None }), Bright, 0), (Addend(-8), Bright, 0), (Eol, Normal, 0)]
+[(Address(136), Normal, 5), (Spacing(4), Normal, 0), (Opcode("b", 32773), Normal, 10), (BranchDest(200), Normal, 0), (Basic(" ~>"), Rotating(0), 0), (Eol, Normal, 0)]
+[(Address(140), Normal, 5), (Basic(" ~> "), Rotating(3), 0), (Opcode("mov", 32818), Normal, 10), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r5")), Normal, 0), (Eol, Normal, 0)]
+[(Address(144), Normal, 5), (Spacing(4), Normal, 0), (Opcode("bl", 32774), Normal, 10), (Symbol(Symbol { name: "_ZN13LinkStateItem13StopUsingRopeEv", demangled_name: Some("LinkStateItem::StopUsingRope()"), address: 0, size: 0, kind: Unknown, section: None, flags: FlagSet(Global | Weak), align: None, virtual_address: None }), Bright, 0), (Addend(-8), Bright, 0), (Eol, Normal, 0)]
+[(Address(148), Normal, 5), (Spacing(4), Normal, 0), (Opcode("b", 32773), Normal, 10), (BranchDest(200), Normal, 0), (Basic(" ~>"), Rotating(0), 0), (Eol, Normal, 0)]
+[(Address(152), Normal, 5), (Basic(" ~> "), Rotating(5), 0), (Opcode("mov", 32818), Normal, 10), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r5")), Normal, 0), (Eol, Normal, 0)]
+[(Address(156), Normal, 5), (Spacing(4), Normal, 0), (Opcode("bl", 32774), Normal, 10), (Symbol(Symbol { name: "_ZN13LinkStateItem15StopUsingHammerEv", demangled_name: Some("LinkStateItem::StopUsingHammer()"), address: 0, size: 0, kind: Unknown, section: None, flags: FlagSet(Global | Weak), align: None, virtual_address: None }), Bright, 0), (Addend(-8), Bright, 0), (Eol, Normal, 0)]
+[(Address(160), Normal, 5), (Spacing(4), Normal, 0), (Opcode("b", 32773), Normal, 10), (BranchDest(200), Normal, 0), (Basic(" ~>"), Rotating(0), 0), (Eol, Normal, 0)]
+[(Address(164), Normal, 5), (Basic(" ~> "), Rotating(6), 0), (Opcode("ldr", 32799), Normal, 10), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Basic("["), Normal, 0), (Argument(Opaque("pc")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Signed(248)), Normal, 0), (Basic("]"), Normal, 0), (Basic(" (->"), Normal, 0), (BranchDest(420), Normal, 0), (Basic(")"), Normal, 0), (Eol, Normal, 0)]
+[(Address(168), Normal, 5), (Spacing(4), Normal, 0), (Opcode("mov", 32818), Normal, 10), (Argument(Opaque("r1")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Unsigned(0)), Normal, 0), (Eol, Normal, 0)]
+[(Address(172), Normal, 5), (Spacing(4), Normal, 0), (Opcode("ldr", 32799), Normal, 10), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Basic("["), Normal, 0), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Signed(0)), Normal, 0), (Basic("]"), Normal, 0), (Eol, Normal, 0)]
+[(Address(176), Normal, 5), (Spacing(4), Normal, 0), (Opcode("mov", 32818), Normal, 10), (Argument(Opaque("r2")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r1")), Normal, 0), (Eol, Normal, 0)]
+[(Address(180), Normal, 5), (Spacing(4), Normal, 0), (Opcode("strb", 32899), Normal, 10), (Argument(Opaque("r1")), Normal, 0), (Basic(", "), Normal, 0), (Basic("["), Normal, 0), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Signed(42)), Normal, 0), (Basic("]"), Normal, 0), (Eol, Normal, 0)]
+[(Address(184), Normal, 5), (Spacing(4), Normal, 0), (Opcode("bl", 32774), Normal, 10), (Symbol(Symbol { name: "_ZN18UnkStruct_027e103c19func_ov000_020cf9dcEii", demangled_name: Some("UnkStruct_027e103c::func_ov000_020cf9dc(int, int)"), address: 0, size: 0, kind: Unknown, section: None, flags: FlagSet(Global | Weak), align: None, virtual_address: None }), Bright, 0), (Addend(-8), Bright, 0), (Eol, Normal, 0)]
+[(Address(188), Normal, 5), (Spacing(4), Normal, 0), (Opcode("b", 32773), Normal, 10), (BranchDest(200), Normal, 0), (Basic(" ~>"), Rotating(0), 0), (Eol, Normal, 0)]
+[(Address(192), Normal, 5), (Basic(" ~> "), Rotating(1), 0), (Opcode("mov", 32818), Normal, 10), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r5")), Normal, 0), (Eol, Normal, 0)]
+[(Address(196), Normal, 5), (Spacing(4), Normal, 0), (Opcode("bl", 32774), Normal, 10), (Symbol(Symbol { name: "_ZN13LinkStateItem14StopUsingScoopEv", demangled_name: Some("LinkStateItem::StopUsingScoop()"), address: 0, size: 0, kind: Unknown, section: None, flags: FlagSet(Global | Weak), align: None, virtual_address: None }), Bright, 0), (Addend(-8), Bright, 0), (Eol, Normal, 0)]
+[(Address(200), Normal, 5), (Basic(" ~> "), Rotating(0), 0), (Opcode("ldr", 32799), Normal, 10), (Argument(Opaque("r1")), Normal, 0), (Basic(", "), Normal, 0), (Basic("["), Normal, 0), (Argument(Opaque("r5")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Signed(20)), Normal, 0), (Basic("]"), Normal, 0), (Eol, Normal, 0)]
+[(Address(204), Normal, 5), (Spacing(4), Normal, 0), (Opcode("mvn", 32829), Normal, 10), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Unsigned(0)), Normal, 0), (Eol, Normal, 0)]
+[(Address(208), Normal, 5), (Spacing(4), Normal, 0), (Opcode("cmp", 32786), Normal, 10), (Argument(Opaque("r1")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r0")), Normal, 0), (Eol, Normal, 0)]
+[(Address(212), Normal, 5), (Spacing(4), Normal, 0), (Opcode("beq", 32773), Normal, 10), (BranchDest(236), Normal, 0), (Basic(" ~>"), Rotating(9), 0), (Eol, Normal, 0)]
+[(Address(216), Normal, 5), (Spacing(4), Normal, 0), (Opcode("mov", 32818), Normal, 10), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r5")), Normal, 0), (Eol, Normal, 0)]
+[(Address(220), Normal, 5), (Spacing(4), Normal, 0), (Opcode("bl", 32774), Normal, 10), (Symbol(Symbol { name: "_ZN13LinkStateBase12GetEquipItemEi", demangled_name: Some("LinkStateBase::GetEquipItem(int)"), address: 0, size: 0, kind: Unknown, section: None, flags: FlagSet(Global | Weak), align: None, virtual_address: None }), Bright, 0), (Addend(-8), Bright, 0), (Eol, Normal, 0)]
+[(Address(224), Normal, 5), (Spacing(4), Normal, 0), (Opcode("ldr", 32799), Normal, 10), (Argument(Opaque("r1")), Normal, 0), (Basic(", "), Normal, 0), (Basic("["), Normal, 0), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Signed(0)), Normal, 0), (Basic("]"), Normal, 0), (Eol, Normal, 0)]
+[(Address(228), Normal, 5), (Spacing(4), Normal, 0), (Opcode("ldr", 32799), Normal, 10), (Argument(Opaque("r1")), Normal, 0), (Basic(", "), Normal, 0), (Basic("["), Normal, 0), (Argument(Opaque("r1")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Signed(28)), Normal, 0), (Basic("]"), Normal, 0), (Eol, Normal, 0)]
+[(Address(232), Normal, 5), (Spacing(4), Normal, 0), (Opcode("blx", 32778), Normal, 10), (Argument(Opaque("r1")), Normal, 0), (Eol, Normal, 0)]
+[(Address(236), Normal, 5), (Basic(" ~> "), Rotating(9), 0), (Opcode("ldr", 32799), Normal, 10), (Argument(Opaque("r1")), Normal, 0), (Basic(", "), Normal, 0), (Basic("["), Normal, 0), (Argument(Opaque("r5")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Signed(20)), Normal, 0), (Basic("]"), Normal, 0), (Eol, Normal, 0)]
+[(Address(240), Normal, 5), (Spacing(4), Normal, 0), (Opcode("cmp", 32786), Normal, 10), (Argument(Opaque("r1")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Unsigned(9)), Normal, 0), (Eol, Normal, 0)]
+[(Address(244), Normal, 5), (Spacing(4), Normal, 0), (Opcode("bgt", 32773), Normal, 10), (BranchDest(288), Normal, 0), (Basic(" ~>"), Rotating(10), 0), (Eol, Normal, 0)]
+[(Address(248), Normal, 5), (Spacing(4), Normal, 0), (Opcode("bge", 32773), Normal, 10), (BranchDest(296), Normal, 0), (Basic(" ~>"), Rotating(11), 0), (Eol, Normal, 0)]
+[(Address(252), Normal, 5), (Spacing(4), Normal, 0), (Opcode("cmp", 32786), Normal, 10), (Argument(Opaque("r1")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Unsigned(1)), Normal, 0), (Eol, Normal, 0)]
+[(Address(256), Normal, 5), (Spacing(4), Normal, 0), (Opcode("bgt", 32773), Normal, 10), (BranchDest(308), Normal, 0), (Basic(" ~>"), Rotating(12), 0), (Eol, Normal, 0)]
+[(Address(260), Normal, 5), (Spacing(4), Normal, 0), (Opcode("mvn", 32829), Normal, 10), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Unsigned(0)), Normal, 0), (Eol, Normal, 0)]
+[(Address(264), Normal, 5), (Spacing(4), Normal, 0), (Opcode("cmp", 32786), Normal, 10), (Argument(Opaque("r1")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r0")), Normal, 0), (Eol, Normal, 0)]
+[(Address(268), Normal, 5), (Spacing(4), Normal, 0), (Opcode("blt", 32773), Normal, 10), (BranchDest(308), Normal, 0), (Basic(" ~>"), Rotating(12), 0), (Eol, Normal, 0)]
+[(Address(272), Normal, 5), (Spacing(4), Normal, 0), (Opcode("cmpne", 32786), Normal, 10), (Argument(Opaque("r1")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Unsigned(0)), Normal, 0), (Eol, Normal, 0)]
+[(Address(276), Normal, 5), (Spacing(4), Normal, 0), (Opcode("cmpne", 32786), Normal, 10), (Argument(Opaque("r1")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Unsigned(1)), Normal, 0), (Eol, Normal, 0)]
+[(Address(280), Normal, 5), (Spacing(4), Normal, 0), (Opcode("beq", 32773), Normal, 10), (BranchDest(340), Normal, 0), (Basic(" ~>"), Rotating(13), 0), (Eol, Normal, 0)]
+[(Address(284), Normal, 5), (Spacing(4), Normal, 0), (Opcode("b", 32773), Normal, 10), (BranchDest(308), Normal, 0), (Basic(" ~>"), Rotating(12), 0), (Eol, Normal, 0)]
+[(Address(288), Normal, 5), (Basic(" ~> "), Rotating(10), 0), (Opcode("cmp", 32786), Normal, 10), (Argument(Opaque("r1")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Unsigned(10)), Normal, 0), (Eol, Normal, 0)]
+[(Address(292), Normal, 5), (Spacing(4), Normal, 0), (Opcode("bne", 32773), Normal, 10), (BranchDest(308), Normal, 0), (Basic(" ~>"), Rotating(12), 0), (Eol, Normal, 0)]
+[(Address(296), Normal, 5), (Basic(" ~> "), Rotating(11), 0), (Opcode("mov", 32818), Normal, 10), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r5")), Normal, 0), (Eol, Normal, 0)]
+[(Address(300), Normal, 5), (Spacing(4), Normal, 0), (Opcode("bl", 32774), Normal, 10), (Symbol(Symbol { name: "_ZN13LinkStateBase18EquipItem_vfunc_28Ev", demangled_name: Some("LinkStateBase::EquipItem_vfunc_28()"), address: 0, size: 0, kind: Unknown, section: None, flags: FlagSet(Global | Weak), align: None, virtual_address: None }), Bright, 0), (Addend(-8), Bright, 0), (Eol, Normal, 0)]
+[(Address(304), Normal, 5), (Spacing(4), Normal, 0), (Opcode("b", 32773), Normal, 10), (BranchDest(340), Normal, 0), (Basic(" ~>"), Rotating(13), 0), (Eol, Normal, 0)]
+[(Address(308), Normal, 5), (Basic(" ~> "), Rotating(12), 0), (Opcode("mov", 32818), Normal, 10), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r5")), Normal, 0), (Eol, Normal, 0)]
+[(Address(312), Normal, 5), (Spacing(4), Normal, 0), (Opcode("bl", 32774), Normal, 10), (Symbol(Symbol { name: "_ZN13LinkStateBase18EquipItem_vfunc_28Ev", demangled_name: Some("LinkStateBase::EquipItem_vfunc_28()"), address: 0, size: 0, kind: Unknown, section: None, flags: FlagSet(Global | Weak), align: None, virtual_address: None }), Bright, 0), (Addend(-8), Bright, 0), (Eol, Normal, 0)]
+[(Address(316), Normal, 5), (Spacing(4), Normal, 0), (Opcode("cmp", 32786), Normal, 10), (Argument(Opaque("r4")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Unsigned(4)), Normal, 0), (Eol, Normal, 0)]
+[(Address(320), Normal, 5), (Spacing(4), Normal, 0), (Opcode("cmpne", 32786), Normal, 10), (Argument(Opaque("r4")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Unsigned(2)), Normal, 0), (Eol, Normal, 0)]
+[(Address(324), Normal, 5), (Spacing(4), Normal, 0), (Opcode("beq", 32773), Normal, 10), (BranchDest(340), Normal, 0), (Basic(" ~>"), Rotating(13), 0), (Eol, Normal, 0)]
+[(Address(328), Normal, 5), (Spacing(4), Normal, 0), (Opcode("bl", 32774), Normal, 10), (Symbol(Symbol { name: "_ZN13LinkStateItem16GetLinkStateMoveEv", demangled_name: Some("LinkStateItem::GetLinkStateMove()"), address: 488, size: 16, kind: Function, section: Some(0), flags: FlagSet(Global), align: None, virtual_address: None }), Bright, 0), (Addend(-8), Bright, 0), (Eol, Normal, 0)]
+[(Address(332), Normal, 5), (Spacing(4), Normal, 0), (Opcode("mov", 32818), Normal, 10), (Argument(Opaque("r1")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Unsigned(1)), Normal, 0), (Eol, Normal, 0)]
+[(Address(336), Normal, 5), (Spacing(4), Normal, 0), (Opcode("strb", 32899), Normal, 10), (Argument(Opaque("r1")), Normal, 0), (Basic(", "), Normal, 0), (Basic("["), Normal, 0), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Signed(20)), Normal, 0), (Basic("]"), Normal, 0), (Eol, Normal, 0)]
+[(Address(340), Normal, 5), (Basic(" ~> "), Rotating(13), 0), (Opcode("mvn", 32829), Normal, 10), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Unsigned(0)), Normal, 0), (Eol, Normal, 0)]
+[(Address(344), Normal, 5), (Spacing(4), Normal, 0), (Opcode("add", 32770), Normal, 10), (Argument(Opaque("r6")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r5")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Unsigned(80)), Normal, 0), (Eol, Normal, 0)]
+[(Address(348), Normal, 5), (Spacing(4), Normal, 0), (Opcode("add", 32770), Normal, 10), (Argument(Opaque("r4")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r5")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Unsigned(88)), Normal, 0), (Eol, Normal, 0)]
+[(Address(352), Normal, 5), (Spacing(4), Normal, 0), (Opcode("str", 32898), Normal, 10), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Basic("["), Normal, 0), (Argument(Opaque("r5")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Signed(24)), Normal, 0), (Basic("]"), Normal, 0), (Eol, Normal, 0)]
+[(Address(356), Normal, 5), (Spacing(4), Normal, 0), (Opcode("cmp", 32786), Normal, 10), (Argument(Opaque("r6")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r4")), Normal, 0), (Eol, Normal, 0)]
+[(Address(360), Normal, 5), (Spacing(4), Normal, 0), (Opcode("beq", 32773), Normal, 10), (BranchDest(384), Normal, 0), (Basic(" ~>"), Rotating(14), 0), (Eol, Normal, 0)]
+[(Address(364), Normal, 5), (Basic(" ~> "), Rotating(15), 0), (Opcode("mov", 32818), Normal, 10), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r6")), Normal, 0), (Eol, Normal, 0)]
+[(Address(368), Normal, 5), (Spacing(4), Normal, 0), (Opcode("bl", 32774), Normal, 10), (Symbol(Symbol { name: "_Z19func_ov000_020b7e6cPi", demangled_name: Some("func_ov000_020b7e6c(int*)"), address: 0, size: 0, kind: Unknown, section: None, flags: FlagSet(Global | Weak), align: None, virtual_address: None }), Bright, 0), (Addend(-8), Bright, 0), (Eol, Normal, 0)]
+[(Address(372), Normal, 5), (Spacing(4), Normal, 0), (Opcode("add", 32770), Normal, 10), (Argument(Opaque("r6")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r6")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Unsigned(4)), Normal, 0), (Eol, Normal, 0)]
+[(Address(376), Normal, 5), (Spacing(4), Normal, 0), (Opcode("cmp", 32786), Normal, 10), (Argument(Opaque("r6")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r4")), Normal, 0), (Eol, Normal, 0)]
+[(Address(380), Normal, 5), (Spacing(4), Normal, 0), (Opcode("bne", 32773), Normal, 10), (BranchDest(364), Normal, 0), (Basic(" ~>"), Rotating(15), 0), (Eol, Normal, 0)]
+[(Address(384), Normal, 5), (Basic(" ~> "), Rotating(14), 0), (Opcode("ldr", 32799), Normal, 10), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Basic("["), Normal, 0), (Argument(Opaque("pc")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Signed(36)), Normal, 0), (Basic("]"), Normal, 0), (Basic(" (->"), Normal, 0), (BranchDest(428), Normal, 0), (Basic(")"), Normal, 0), (Eol, Normal, 0)]
+[(Address(388), Normal, 5), (Spacing(4), Normal, 0), (Opcode("ldr", 32799), Normal, 10), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Basic("["), Normal, 0), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Signed(0)), Normal, 0), (Basic("]"), Normal, 0), (Eol, Normal, 0)]
+[(Address(392), Normal, 5), (Spacing(4), Normal, 0), (Opcode("ldrb", 32800), Normal, 10), (Argument(Opaque("r1")), Normal, 0), (Basic(", "), Normal, 0), (Basic("["), Normal, 0), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Signed(128)), Normal, 0), (Basic("]"), Normal, 0), (Eol, Normal, 0)]
+[(Address(396), Normal, 5), (Spacing(4), Normal, 0), (Opcode("cmp", 32786), Normal, 10), (Argument(Opaque("r1")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Unsigned(0)), Normal, 0), (Eol, Normal, 0)]
+[(Address(400), Normal, 5), (Spacing(4), Normal, 0), (Opcode("beq", 32773), Normal, 10), (BranchDest(408), Normal, 0), (Basic(" ~>"), Rotating(16), 0), (Eol, Normal, 0)]
+[(Address(404), Normal, 5), (Spacing(4), Normal, 0), (Opcode("bl", 32774), Normal, 10), (Symbol(Symbol { name: "_ZN13PlayerControl13StopFollowingEv", demangled_name: Some("PlayerControl::StopFollowing()"), address: 0, size: 0, kind: Unknown, section: None, flags: FlagSet(Global | Weak), align: None, virtual_address: None }), Bright, 0), (Addend(-8), Bright, 0), (Eol, Normal, 0)]
+[(Address(408), Normal, 5), (Basic(" ~> "), Rotating(16), 0), (Opcode("mov", 32818), Normal, 10), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Unsigned(0)), Normal, 0), (Eol, Normal, 0)]
+[(Address(412), Normal, 5), (Spacing(4), Normal, 0), (Opcode("strb", 32899), Normal, 10), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Basic("["), Normal, 0), (Argument(Opaque("r5")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Signed(38)), Normal, 0), (Basic("]"), Normal, 0), (Eol, Normal, 0)]
+[(Address(416), Normal, 5), (Spacing(4), Normal, 0), (Opcode("ldmia", 32793), Normal, 10), (Argument(Opaque("sp")), Normal, 0), (Argument(Opaque("!")), Normal, 0), (Basic(", "), Normal, 0), (Basic("{"), Normal, 0), (Argument(Opaque("r4")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r5")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r6")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("pc")), Normal, 0), (Basic("}"), Normal, 0), (Eol, Normal, 0)]
+[(Address(420), Normal, 5), (Spacing(4), Normal, 0), (Opcode(".word", 65535), Normal, 10), (Symbol(Symbol { name: "data_027e103c", demangled_name: None, address: 0, size: 0, kind: Unknown, section: None, flags: FlagSet(Global | Weak), align: None, virtual_address: None }), Bright, 0), (Eol, Normal, 0)]
+[(Address(424), Normal, 5), (Basic(" ~> "), Rotating(8), 0), (Opcode(".word", 65535), Normal, 10), (Symbol(Symbol { name: "data_027e1098", demangled_name: None, address: 0, size: 0, kind: Unknown, section: None, flags: FlagSet(Global | Weak), align: None, virtual_address: None }), Bright, 0), (Eol, Normal, 0)]
+[(Address(428), Normal, 5), (Spacing(4), Normal, 0), (Opcode(".word", 65535), Normal, 10), (Symbol(Symbol { name: "gPlayerControl", demangled_name: None, address: 0, size: 0, kind: Unknown, section: None, flags: FlagSet(Global | Weak), align: None, virtual_address: None }), Bright, 0), (Eol, Normal, 0)]

objdiff-core/tests/snapshots/arch_arm__read_thumb-3.snap

@@ -0,0 +1,111 @@
+---
+source: objdiff-core/tests/arch_arm.rs
+assertion_line: 33
+expression: output
+---
+[(Line(37), Dim, 5), (Address(0), Normal, 5), (Spacing(4), Normal, 0), (Opcode("push", 56), Normal, 10), (Basic("{"), Normal, 0), (Argument(Opaque("r3")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r4")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r5")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r6")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r7")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("lr")), Normal, 0), (Basic("}"), Normal, 0), (Eol, Normal, 0)]
+[(Line(37), Dim, 5), (Address(2), Normal, 5), (Spacing(4), Normal, 0), (Opcode("sub", 74), Normal, 10), (Argument(Opaque("sp")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("sp")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Signed(16)), Normal, 0), (Eol, Normal, 0)]
+[(Line(37), Dim, 5), (Address(4), Normal, 5), (Spacing(4), Normal, 0), (Opcode("mov", 47), Normal, 10), (Argument(Opaque("r5")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r0")), Normal, 0), (Eol, Normal, 0)]
+[(Line(39), Dim, 5), (Address(6), Normal, 5), (Spacing(4), Normal, 0), (Opcode("mov", 47), Normal, 10), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r3")), Normal, 0), (Eol, Normal, 0)]
+[(Line(39), Dim, 5), (Address(8), Normal, 5), (Spacing(4), Normal, 0), (Opcode("mov", 47), Normal, 10), (Argument(Opaque("r4")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r1")), Normal, 0), (Eol, Normal, 0)]
+[(Line(39), Dim, 5), (Address(10), Normal, 5), (Spacing(4), Normal, 0), (Opcode("mov", 47), Normal, 10), (Argument(Opaque("r6")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r2")), Normal, 0), (Eol, Normal, 0)]
+[(Line(39), Dim, 5), (Address(12), Normal, 5), (Spacing(4), Normal, 0), (Opcode("str", 66), Normal, 10), (Argument(Opaque("r3")), Normal, 0), (Basic(", "), Normal, 0), (Basic("["), Normal, 0), (Argument(Opaque("sp")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Signed(4)), Normal, 0), (Basic("]"), Normal, 0), (Eol, Normal, 0)]
+[(Line(39), Dim, 5), (Address(14), Normal, 5), (Spacing(4), Normal, 0), (Opcode("bl", 19), Normal, 10), (Symbol(Symbol { name: "PokeSet_IsRemovedAll", demangled_name: None, address: 0, size: 0, kind: Unknown, section: None, flags: FlagSet(Global), align: None, virtual_address: None }), Bright, 0), (Addend(-4), Bright, 0), (Eol, Normal, 0)]
+[(Line(39), Dim, 5), (Address(18), Normal, 5), (Spacing(4), Normal, 0), (Opcode("cmp", 25), Normal, 10), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Unsigned(0)), Normal, 0), (Eol, Normal, 0)]
+[(Line(39), Dim, 5), (Address(20), Normal, 5), (Spacing(4), Normal, 0), (Opcode("bne", 15), Normal, 10), (BranchDest(212), Normal, 0), (Basic(" ~>"), Rotating(0), 0), (Eol, Normal, 0)]
+[(Line(44), Dim, 5), (Address(22), Normal, 5), (Spacing(4), Normal, 0), (Opcode("ldrh", 38), Normal, 10), (Argument(Opaque("r1")), Normal, 0), (Basic(", "), Normal, 0), (Basic("["), Normal, 0), (Argument(Opaque("r4")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Signed(0)), Normal, 0), (Basic("]"), Normal, 0), (Eol, Normal, 0)]
+[(Line(44), Dim, 5), (Address(24), Normal, 5), (Spacing(4), Normal, 0), (Opcode("cmp", 25), Normal, 10), (Argument(Opaque("r1")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Unsigned(164)), Normal, 0), (Eol, Normal, 0)]
+[(Line(44), Dim, 5), (Address(26), Normal, 5), (Spacing(4), Normal, 0), (Opcode("beq", 15), Normal, 10), (BranchDest(48), Normal, 0), (Basic(" ~>"), Rotating(1), 0), (Eol, Normal, 0)]
+[(Line(44), Dim, 5), (Address(28), Normal, 5), (Spacing(4), Normal, 0), (Opcode("ldr", 34), Normal, 10), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Basic("["), Normal, 0), (Argument(Opaque("pc")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Signed(184)), Normal, 0), (Basic("]"), Normal, 0), (Basic(" (->"), Normal, 0), (BranchDest(216), Normal, 0), (Basic(")"), Normal, 0), (Eol, Normal, 0)]
+[(Line(44), Dim, 5), (Address(30), Normal, 5), (Spacing(4), Normal, 0), (Opcode("cmp", 26), Normal, 10), (Argument(Opaque("r1")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r0")), Normal, 0), (Eol, Normal, 0)]
+[(Line(44), Dim, 5), (Address(32), Normal, 5), (Spacing(4), Normal, 0), (Opcode("bne", 15), Normal, 10), (BranchDest(94), Normal, 0), (Basic(" ~>"), Rotating(2), 0), (Eol, Normal, 0)]
+[(Line(47), Dim, 5), (Address(34), Normal, 5), (Spacing(4), Normal, 0), (Opcode("ldr", 35), Normal, 10), (Argument(Opaque("r2")), Normal, 0), (Basic(", "), Normal, 0), (Basic("["), Normal, 0), (Argument(Opaque("sp")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Signed(4)), Normal, 0), (Basic("]"), Normal, 0), (Eol, Normal, 0)]
+[(Line(47), Dim, 5), (Address(36), Normal, 5), (Spacing(4), Normal, 0), (Opcode("mov", 47), Normal, 10), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r5")), Normal, 0), (Eol, Normal, 0)]
+[(Line(47), Dim, 5), (Address(38), Normal, 5), (Spacing(4), Normal, 0), (Opcode("mov", 47), Normal, 10), (Argument(Opaque("r1")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r6")), Normal, 0), (Eol, Normal, 0)]
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+[(Line(75), Dim, 5), (Address(186), Normal, 5), (Spacing(4), Normal, 0), (Opcode("bne", 15), Normal, 10), (BranchDest(200), Normal, 0), (Basic(" ~>"), Rotating(4), 0), (Eol, Normal, 0)]
+[(Line(77), Dim, 5), (Address(188), Normal, 5), (Spacing(4), Normal, 0), (Opcode("ldr", 32), Normal, 10), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Basic("["), Normal, 0), (Argument(Opaque("r5")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Signed(12)), Normal, 0), (Basic("]"), Normal, 0), (Eol, Normal, 0)]
+[(Line(77), Dim, 5), (Address(190), Normal, 5), (Spacing(4), Normal, 0), (Opcode("ldr", 34), Normal, 10), (Argument(Opaque("r3")), Normal, 0), (Basic(", "), Normal, 0), (Basic("["), Normal, 0), (Argument(Opaque("pc")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Signed(44)), Normal, 0), (Basic("]"), Normal, 0), (Basic(" (->"), Normal, 0), (BranchDest(236), Normal, 0), (Basic(")"), Normal, 0), (Eol, Normal, 0)]
+[(Line(77), Dim, 5), (Address(192), Normal, 5), (Spacing(4), Normal, 0), (Opcode("mov", 46), Normal, 10), (Argument(Opaque("r1")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Unsigned(90)), Normal, 0), (Eol, Normal, 0)]
+[(Line(77), Dim, 5), (Address(194), Normal, 5), (Spacing(4), Normal, 0), (Opcode("mov", 46), Normal, 10), (Argument(Opaque("r2")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Unsigned(71)), Normal, 0), (Eol, Normal, 0)]
+[(Line(77), Dim, 5), (Address(196), Normal, 5), (Spacing(4), Normal, 0), (Opcode("bl", 19), Normal, 10), (Symbol(Symbol { name: "SCQUE_PUT_MsgImpl", demangled_name: None, address: 0, size: 0, kind: Unknown, section: None, flags: FlagSet(Global), align: None, virtual_address: None }), Bright, 0), (Addend(-4), Bright, 0), (Eol, Normal, 0)]
+[(Line(81), Dim, 5), (Address(200), Normal, 5), (Basic(" ~> "), Rotating(4), 0), (Opcode("ldr", 34), Normal, 10), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Basic("["), Normal, 0), (Argument(Opaque("pc")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Signed(20)), Normal, 0), (Basic("]"), Normal, 0), (Basic(" (->"), Normal, 0), (BranchDest(224), Normal, 0), (Basic(")"), Normal, 0), (Eol, Normal, 0)]
+[(Line(81), Dim, 5), (Address(202), Normal, 5), (Spacing(4), Normal, 0), (Opcode("ldr", 35), Normal, 10), (Argument(Opaque("r1")), Normal, 0), (Basic(", "), Normal, 0), (Basic("["), Normal, 0), (Argument(Opaque("sp")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Signed(8)), Normal, 0), (Basic("]"), Normal, 0), (Eol, Normal, 0)]
+[(Line(81), Dim, 5), (Address(204), Normal, 5), (Spacing(4), Normal, 0), (Opcode("ldr", 34), Normal, 10), (Argument(Opaque("r2")), Normal, 0), (Basic(", "), Normal, 0), (Basic("["), Normal, 0), (Argument(Opaque("pc")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Signed(32)), Normal, 0), (Basic("]"), Normal, 0), (Basic(" (->"), Normal, 0), (BranchDest(240), Normal, 0), (Basic(")"), Normal, 0), (Eol, Normal, 0)]
+[(Line(81), Dim, 5), (Address(206), Normal, 5), (Spacing(4), Normal, 0), (Opcode("add", 4), Normal, 10), (Argument(Opaque("r0")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r5")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r0")), Normal, 0), (Eol, Normal, 0)]
+[(Line(81), Dim, 5), (Address(208), Normal, 5), (Spacing(4), Normal, 0), (Opcode("bl", 19), Normal, 10), (Symbol(Symbol { name: "HEManager_PopState", demangled_name: None, address: 0, size: 0, kind: Unknown, section: None, flags: FlagSet(Global), align: None, virtual_address: None }), Bright, 0), (Addend(-4), Bright, 0), (Eol, Normal, 0)]
+[(Line(86), Dim, 5), (Address(212), Normal, 5), (Basic(" ~> "), Rotating(0), 0), (Opcode("add", 7), Normal, 10), (Argument(Opaque("sp")), Normal, 0), (Basic(", "), Normal, 0), (Basic("#"), Normal, 0), (Argument(Signed(16)), Normal, 0), (Eol, Normal, 0)]
+[(Line(86), Dim, 5), (Address(214), Normal, 5), (Spacing(4), Normal, 0), (Opcode("pop", 55), Normal, 10), (Basic("{"), Normal, 0), (Argument(Opaque("r3")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r4")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r5")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r6")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("r7")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("pc")), Normal, 0), (Basic("}"), Normal, 0), (Eol, Normal, 0)]
+[(Line(86), Dim, 5), (Address(216), Normal, 5), (Spacing(4), Normal, 0), (Opcode(".word", 65535), Normal, 10), (Basic("#"), Normal, 0), (Argument(Unsigned(285)), Normal, 0), (Eol, Normal, 0)]
+[(Line(86), Dim, 5), (Address(220), Normal, 5), (Spacing(4), Normal, 0), (Opcode(".word", 65535), Normal, 10), (Basic("#"), Normal, 0), (Argument(Unsigned(1192)), Normal, 0), (Eol, Normal, 0)]
+[(Line(86), Dim, 5), (Address(224), Normal, 5), (Spacing(4), Normal, 0), (Opcode(".word", 65535), Normal, 10), (Basic("#"), Normal, 0), (Argument(Unsigned(7544)), Normal, 0), (Eol, Normal, 0)]
+[(Line(86), Dim, 5), (Address(228), Normal, 5), (Spacing(4), Normal, 0), (Opcode(".word", 65535), Normal, 10), (Basic("#"), Normal, 0), (Argument(Unsigned(9103)), Normal, 0), (Eol, Normal, 0)]
+[(Line(86), Dim, 5), (Address(232), Normal, 5), (Spacing(4), Normal, 0), (Opcode(".word", 65535), Normal, 10), (Basic("#"), Normal, 0), (Argument(Unsigned(1930)), Normal, 0), (Eol, Normal, 0)]
+[(Line(86), Dim, 5), (Address(236), Normal, 5), (Spacing(4), Normal, 0), (Opcode(".word", 65535), Normal, 10), (Basic("#"), Normal, 0), (Argument(Unsigned(4294901760)), Normal, 0), (Eol, Normal, 0)]
+[(Line(86), Dim, 5), (Address(240), Normal, 5), (Spacing(4), Normal, 0), (Opcode(".word", 65535), Normal, 10), (Basic("#"), Normal, 0), (Argument(Unsigned(9129)), Normal, 0), (Eol, Normal, 0)]

objdiff-core/tests/snapshots/arch_mips__filter_non_matching.snap

@@ -0,0 +1,452 @@
+---
+source: objdiff-core/tests/arch_mips.rs
+expression: obj.symbols
+---
+[
+    Symbol {
+        name: "build/src/bodyprog/view/vw_main.i",
+        demangled_name: None,
+        address: 0,
+        size: 0,
+        kind: Unknown,
+        section: None,
+        flags: FlagSet(Local),
+        align: None,
+        virtual_address: None,
+    },
+    Symbol {
+        name: "[.text]",
+        demangled_name: None,
+        address: 0,
+        size: 0,
+        kind: Section,
+        section: Some(
+            0,
+        ),
+        flags: FlagSet(Local),
+        align: None,
+        virtual_address: None,
+    },
+    Symbol {
+        name: "[.data]",
+        demangled_name: None,
+        address: 0,
+        size: 0,
+        kind: Section,
+        section: Some(
+            2,
+        ),
+        flags: FlagSet(Local),
+        align: None,
+        virtual_address: None,
+    },
+    Symbol {
+        name: "[.bss]",
+        demangled_name: None,
+        address: 0,
+        size: 0,
+        kind: Section,
+        section: Some(
+            3,
+        ),
+        flags: FlagSet(Local),
+        align: None,
+        virtual_address: None,
+    },
+    Symbol {
+        name: "gcc2_compiled.",
+        demangled_name: None,
+        address: 0,
+        size: 0,
+        kind: Unknown,
+        section: Some(
+            0,
+        ),
+        flags: FlagSet(Local),
+        align: None,
+        virtual_address: None,
+    },
+    Symbol {
+        name: "__gnu_compiled_c",
+        demangled_name: None,
+        address: 0,
+        size: 0,
+        kind: Unknown,
+        section: Some(
+            0,
+        ),
+        flags: FlagSet(Local),
+        align: None,
+        virtual_address: None,
+    },
+    Symbol {
+        name: ".endfunc_80048AF4",
+        demangled_name: None,
+        address: 424,
+        size: 0,
+        kind: Unknown,
+        section: Some(
+            0,
+        ),
+        flags: FlagSet(Local),
+        align: None,
+        virtual_address: None,
+    },
+    Symbol {
+        name: ".endfunc_80048DA8",
+        demangled_name: None,
+        address: 1028,
+        size: 0,
+        kind: Unknown,
+        section: Some(
+            0,
+        ),
+        flags: FlagSet(Local),
+        align: None,
+        virtual_address: None,
+    },
+    Symbol {
+        name: ".endfunc_80048E3C",
+        demangled_name: None,
+        address: 1264,
+        size: 0,
+        kind: Unknown,
+        section: Some(
+            0,
+        ),
+        flags: FlagSet(Local),
+        align: None,
+        virtual_address: None,
+    },
+    Symbol {
+        name: "[.reginfo]",
+        demangled_name: None,
+        address: 0,
+        size: 24,
+        kind: Section,
+        section: Some(
+            4,
+        ),
+        flags: FlagSet(Local),
+        align: None,
+        virtual_address: None,
+    },
+    Symbol {
+        name: "[.MIPS.abiflags]",
+        demangled_name: None,
+        address: 0,
+        size: 24,
+        kind: Section,
+        section: Some(
+            5,
+        ),
+        flags: FlagSet(Local),
+        align: None,
+        virtual_address: None,
+    },
+    Symbol {
+        name: "[.pdr]",
+        demangled_name: None,
+        address: 0,
+        size: 320,
+        kind: Section,
+        section: Some(
+            6,
+        ),
+        flags: FlagSet(Local),
+        align: None,
+        virtual_address: None,
+    },
+    Symbol {
+        name: "[.gnu.attributes]",
+        demangled_name: None,
+        address: 0,
+        size: 16,
+        kind: Section,
+        section: Some(
+            8,
+        ),
+        flags: FlagSet(Local),
+        align: None,
+        virtual_address: None,
+    },
+    Symbol {
+        name: "vwInitViewInfo",
+        demangled_name: None,
+        address: 0,
+        size: 88,
+        kind: Function,
+        section: Some(
+            0,
+        ),
+        flags: FlagSet(Global),
+        align: None,
+        virtual_address: None,
+    },
+    Symbol {
+        name: "vwViewPointInfo",
+        demangled_name: None,
+        address: 0,
+        size: 0,
+        kind: Unknown,
+        section: None,
+        flags: FlagSet(Global),
+        align: None,
+        virtual_address: None,
+    },
+    Symbol {
+        name: "GsInitCoordinate2",
+        demangled_name: None,
+        address: 0,
+        size: 0,
+        kind: Unknown,
+        section: None,
+        flags: FlagSet(Global),
+        align: None,
+        virtual_address: None,
+    },
+    Symbol {
+        name: "vwSetViewInfo",
+        demangled_name: None,
+        address: 784,
+        size: 96,
+        kind: Function,
+        section: Some(
+            0,
+        ),
+        flags: FlagSet(Global),
+        align: None,
+        virtual_address: None,
+    },
+    Symbol {
+        name: "vwGetViewCoord",
+        demangled_name: None,
+        address: 88,
+        size: 12,
+        kind: Function,
+        section: Some(
+            0,
+        ),
+        flags: FlagSet(Global),
+        align: None,
+        virtual_address: None,
+    },
+    Symbol {
+        name: "vwGetViewPosition",
+        demangled_name: None,
+        address: 100,
+        size: 40,
+        kind: Function,
+        section: Some(
+            0,
+        ),
+        flags: FlagSet(Global),
+        align: None,
+        virtual_address: None,
+    },
+    Symbol {
+        name: "vwGetViewAngle",
+        demangled_name: None,
+        address: 140,
+        size: 48,
+        kind: Function,
+        section: Some(
+            0,
+        ),
+        flags: FlagSet(Global),
+        align: None,
+        virtual_address: None,
+    },
+    Symbol {
+        name: "func_80048AF4",
+        demangled_name: None,
+        address: 188,
+        size: 236,
+        kind: Function,
+        section: Some(
+            0,
+        ),
+        flags: FlagSet(Global | Ignored),
+        align: None,
+        virtual_address: None,
+    },
+    Symbol {
+        name: "ratan2",
+        demangled_name: None,
+        address: 0,
+        size: 0,
+        kind: Unknown,
+        section: None,
+        flags: FlagSet(Global),
+        align: None,
+        virtual_address: None,
+    },
+    Symbol {
+        name: "SquareRoot0",
+        demangled_name: None,
+        address: 0,
+        size: 0,
+        kind: Unknown,
+        section: None,
+        flags: FlagSet(Global),
+        align: None,
+        virtual_address: None,
+    },
+    Symbol {
+        name: "func_80096C94",
+        demangled_name: None,
+        address: 0,
+        size: 0,
+        kind: Unknown,
+        section: None,
+        flags: FlagSet(Global),
+        align: None,
+        virtual_address: None,
+    },
+    Symbol {
+        name: "vwSetViewInfoDirectMatrix",
+        demangled_name: None,
+        address: 696,
+        size: 88,
+        kind: Function,
+        section: Some(
+            0,
+        ),
+        flags: FlagSet(Global),
+        align: None,
+        virtual_address: None,
+    },
+    Symbol {
+        name: "func_80048AF4.NON_MATCHING",
+        demangled_name: None,
+        address: 188,
+        size: 236,
+        kind: Function,
+        section: Some(
+            0,
+        ),
+        flags: FlagSet(Global | Ignored),
+        align: None,
+        virtual_address: None,
+    },
+    Symbol {
+        name: "vwSetCoordRefAndEntou",
+        demangled_name: None,
+        address: 424,
+        size: 272,
+        kind: Function,
+        section: Some(
+            0,
+        ),
+        flags: FlagSet(Global),
+        align: None,
+        virtual_address: None,
+    },
+    Symbol {
+        name: "func_80096E78",
+        demangled_name: None,
+        address: 0,
+        size: 0,
+        kind: Unknown,
+        section: None,
+        flags: FlagSet(Global),
+        align: None,
+        virtual_address: None,
+    },
+    Symbol {
+        name: "shRsin",
+        demangled_name: None,
+        address: 0,
+        size: 0,
+        kind: Unknown,
+        section: None,
+        flags: FlagSet(Global),
+        align: None,
+        virtual_address: None,
+    },
+    Symbol {
+        name: "shRcos",
+        demangled_name: None,
+        address: 0,
+        size: 0,
+        kind: Unknown,
+        section: None,
+        flags: FlagSet(Global),
+        align: None,
+        virtual_address: None,
+    },
+    Symbol {
+        name: "vbSetRefView",
+        demangled_name: None,
+        address: 0,
+        size: 0,
+        kind: Unknown,
+        section: None,
+        flags: FlagSet(Global),
+        align: None,
+        virtual_address: None,
+    },
+    Symbol {
+        name: "vwMatrixToAngleYXZ",
+        demangled_name: None,
+        address: 0,
+        size: 0,
+        kind: Unknown,
+        section: None,
+        flags: FlagSet(Global),
+        align: None,
+        virtual_address: None,
+    },
+    Symbol {
+        name: "func_80048DA8",
+        demangled_name: None,
+        address: 880,
+        size: 148,
+        kind: Function,
+        section: Some(
+            0,
+        ),
+        flags: FlagSet(Global | Ignored),
+        align: None,
+        virtual_address: None,
+    },
+    Symbol {
+        name: "func_80048DA8.NON_MATCHING",
+        demangled_name: None,
+        address: 880,
+        size: 148,
+        kind: Function,
+        section: Some(
+            0,
+        ),
+        flags: FlagSet(Global | Ignored),
+        align: None,
+        virtual_address: None,
+    },
+    Symbol {
+        name: "func_80048E3C",
+        demangled_name: None,
+        address: 1028,
+        size: 236,
+        kind: Function,
+        section: Some(
+            0,
+        ),
+        flags: FlagSet(Global | Ignored),
+        align: None,
+        virtual_address: None,
+    },
+    Symbol {
+        name: "func_80048E3C.NON_MATCHING",
+        demangled_name: None,
+        address: 1028,
+        size: 236,
+        kind: Function,
+        section: Some(
+            0,
+        ),
+        flags: FlagSet(Global | Ignored),
+        align: None,
+        virtual_address: None,
+    },
+]

objdiff-core/tests/snapshots/arch_mips__read_mips-2.snap

@@ -0,0 +1,694 @@
+---
+source: objdiff-core/tests/arch_mips.rs
+expression: diff.instruction_rows
+---
+[
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 0,
+                size: 4,
+                opcode: 12,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 4,
+                size: 4,
+                opcode: 44,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 8,
+                size: 4,
+                opcode: 44,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 12,
+                size: 4,
+                opcode: 44,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 16,
+                size: 4,
+                opcode: 44,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 20,
+                size: 4,
+                opcode: 2,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 24,
+                size: 4,
+                opcode: 113,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 28,
+                size: 4,
+                opcode: 26,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 32,
+                size: 4,
+                opcode: 20,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 36,
+                size: 4,
+                opcode: 97,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 40,
+                size: 4,
+                opcode: 2,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 44,
+                size: 4,
+                opcode: 12,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 48,
+                size: 4,
+                opcode: 20,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 52,
+                size: 4,
+                opcode: 26,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 56,
+                size: 4,
+                opcode: 2,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 60,
+                size: 4,
+                opcode: 12,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 64,
+                size: 4,
+                opcode: 26,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 68,
+                size: 4,
+                opcode: 97,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 72,
+                size: 4,
+                opcode: 2,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 76,
+                size: 4,
+                opcode: 97,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 80,
+                size: 4,
+                opcode: 2,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: Some(
+            InstructionBranchFrom {
+                ins_idx: [
+                    22,
+                ],
+                branch_idx: 0,
+            },
+        ),
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 84,
+                size: 4,
+                opcode: 97,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 88,
+                size: 4,
+                opcode: 56,
+                branch_dest: Some(
+                    80,
+                ),
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: Some(
+            InstructionBranchTo {
+                ins_idx: 20,
+                branch_idx: 0,
+            },
+        ),
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 92,
+                size: 4,
+                opcode: 113,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 96,
+                size: 4,
+                opcode: 2,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 100,
+                size: 4,
+                opcode: 20,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 104,
+                size: 4,
+                opcode: 2,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 108,
+                size: 4,
+                opcode: 12,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 112,
+                size: 4,
+                opcode: 2,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 116,
+                size: 4,
+                opcode: 16,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 120,
+                size: 4,
+                opcode: 20,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 124,
+                size: 4,
+                opcode: 12,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 128,
+                size: 4,
+                opcode: 2,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: Some(
+            InstructionBranchFrom {
+                ins_idx: [
+                    36,
+                    38,
+                    44,
+                ],
+                branch_idx: 1,
+            },
+        ),
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 132,
+                size: 4,
+                opcode: 12,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 136,
+                size: 4,
+                opcode: 2,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 140,
+                size: 4,
+                opcode: 113,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 144,
+                size: 4,
+                opcode: 55,
+                branch_dest: Some(
+                    128,
+                ),
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: Some(
+            InstructionBranchTo {
+                ins_idx: 32,
+                branch_idx: 1,
+            },
+        ),
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 148,
+                size: 4,
+                opcode: 90,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 152,
+                size: 4,
+                opcode: 3,
+                branch_dest: Some(
+                    128,
+                ),
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: Some(
+            InstructionBranchTo {
+                ins_idx: 32,
+                branch_idx: 1,
+            },
+        ),
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 156,
+                size: 4,
+                opcode: 113,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 160,
+                size: 4,
+                opcode: 2,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 164,
+                size: 4,
+                opcode: 60,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 168,
+                size: 4,
+                opcode: 77,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 172,
+                size: 4,
+                opcode: 113,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 176,
+                size: 4,
+                opcode: 54,
+                branch_dest: Some(
+                    128,
+                ),
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: Some(
+            InstructionBranchTo {
+                ins_idx: 32,
+                branch_idx: 1,
+            },
+        ),
+        arg_diff: [],
+    },
+    InstructionDiffRow {
+        ins_ref: Some(
+            InstructionRef {
+                address: 180,
+                size: 4,
+                opcode: 113,
+                branch_dest: None,
+            },
+        ),
+        kind: None,
+        branch_from: None,
+        branch_to: None,
+        arg_diff: [],
+    },
+]

objdiff-core/tests/snapshots/arch_mips__read_mips-3.snap

@@ -0,0 +1,50 @@
+---
+source: objdiff-core/tests/arch_mips.rs
+expression: output
+---
+[(Address(0), Normal, 5), (Spacing(4), Normal, 0), (Opcode("addiu", 12), Normal, 10), (Argument(Opaque("$sp")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("$sp")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Signed(-32)), Normal, 0), (Eol, Normal, 0)]
+[(Address(4), Normal, 5), (Spacing(4), Normal, 0), (Opcode("sd", 44), Normal, 10), (Argument(Opaque("$s0")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Signed(0)), Normal, 0), (Basic("("), Normal, 0), (Argument(Opaque("$sp")), Normal, 0), (Basic(")"), Normal, 0), (Eol, Normal, 0)]
+[(Address(8), Normal, 5), (Spacing(4), Normal, 0), (Opcode("sd", 44), Normal, 10), (Argument(Opaque("$s1")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Signed(8)), Normal, 0), (Basic("("), Normal, 0), (Argument(Opaque("$sp")), Normal, 0), (Basic(")"), Normal, 0), (Eol, Normal, 0)]
+[(Address(12), Normal, 5), (Spacing(4), Normal, 0), (Opcode("sd", 44), Normal, 10), (Argument(Opaque("$s2")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Signed(16)), Normal, 0), (Basic("("), Normal, 0), (Argument(Opaque("$sp")), Normal, 0), (Basic(")"), Normal, 0), (Eol, Normal, 0)]
+[(Address(16), Normal, 5), (Spacing(4), Normal, 0), (Opcode("sd", 44), Normal, 10), (Argument(Opaque("$ra")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Signed(24)), Normal, 0), (Basic("("), Normal, 0), (Argument(Opaque("$sp")), Normal, 0), (Basic(")"), Normal, 0), (Eol, Normal, 0)]
+[(Address(20), Normal, 5), (Spacing(4), Normal, 0), (Opcode("jal", 2), Normal, 10), (Symbol(Symbol { name: "xglSleep", demangled_name: None, address: 0, size: 0, kind: Unknown, section: None, flags: FlagSet(Global), align: None, virtual_address: None }), Bright, 0), (Eol, Normal, 0)]
+[(Address(24), Normal, 5), (Spacing(4), Normal, 0), (Opcode("nop", 113), Normal, 10), (Eol, Normal, 0)]
+[(Address(28), Normal, 5), (Spacing(4), Normal, 0), (Opcode("lw", 26), Normal, 10), (Argument(Opaque("$a1")), Normal, 0), (Basic(", "), Normal, 0), (Basic("%gp_rel("), Normal, 0), (Symbol(Symbol { name: "WorkEnd", demangled_name: None, address: 64, size: 4, kind: Object, section: Some(8), flags: FlagSet(Global), align: None, virtual_address: None }), Bright, 0), (Basic(")"), Normal, 0), (Basic("("), Normal, 0), (Argument(Opaque("$gp")), Normal, 0), (Basic(")"), Normal, 0), (Eol, Normal, 0)]
+[(Address(32), Normal, 5), (Spacing(4), Normal, 0), (Opcode("lui", 20), Normal, 10), (Argument(Opaque("$a0")), Normal, 0), (Basic(", "), Normal, 0), (Basic("%hi("), Normal, 0), (Symbol(Symbol { name: "[.sdata]", demangled_name: None, address: 0, size: 64, kind: Section, section: Some(8), flags: FlagSet(Local), align: None, virtual_address: None }), Bright, 0), (Basic(")"), Normal, 0), (Eol, Normal, 0)]
+[(Address(36), Normal, 5), (Spacing(4), Normal, 0), (Opcode("daddu", 97), Normal, 10), (Argument(Opaque("$a2")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("$zero")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("$zero")), Normal, 0), (Eol, Normal, 0)]
+[(Address(40), Normal, 5), (Spacing(4), Normal, 0), (Opcode("jal", 2), Normal, 10), (Symbol(Symbol { name: "xglSoundLoadEffect", demangled_name: None, address: 0, size: 0, kind: Unknown, section: None, flags: FlagSet(Global), align: None, virtual_address: None }), Bright, 0), (Eol, Normal, 0)]
+[(Address(44), Normal, 5), (Spacing(4), Normal, 0), (Opcode("addiu", 12), Normal, 10), (Argument(Opaque("$a0")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("$a0")), Normal, 0), (Basic(", "), Normal, 0), (Basic("%lo("), Normal, 0), (Symbol(Symbol { name: "[.sdata]", demangled_name: None, address: 0, size: 64, kind: Section, section: Some(8), flags: FlagSet(Local), align: None, virtual_address: None }), Bright, 0), (Basic(")"), Normal, 0), (Eol, Normal, 0)]
+[(Address(48), Normal, 5), (Spacing(4), Normal, 0), (Opcode("lui", 20), Normal, 10), (Argument(Opaque("$a0")), Normal, 0), (Basic(", "), Normal, 0), (Basic("%hi("), Normal, 0), (Symbol(Symbol { name: "PacketBottomNewVu1DropMicroCode", demangled_name: None, address: 0, size: 12, kind: Object, section: Some(7), flags: FlagSet(Global), align: None, virtual_address: None }), Bright, 0), (Basic(")"), Normal, 0), (Eol, Normal, 0)]
+[(Address(52), Normal, 5), (Spacing(4), Normal, 0), (Opcode("lw", 26), Normal, 10), (Argument(Opaque("$a1")), Normal, 0), (Basic(", "), Normal, 0), (Basic("%gp_rel("), Normal, 0), (Symbol(Symbol { name: "WorkEnd", demangled_name: None, address: 64, size: 4, kind: Object, section: Some(8), flags: FlagSet(Global), align: None, virtual_address: None }), Bright, 0), (Basic(")"), Normal, 0), (Basic("("), Normal, 0), (Argument(Opaque("$gp")), Normal, 0), (Basic(")"), Normal, 0), (Eol, Normal, 0)]
+[(Address(56), Normal, 5), (Spacing(4), Normal, 0), (Opcode("jal", 2), Normal, 10), (Symbol(Symbol { name: "xglSoundLoadSwd", demangled_name: None, address: 0, size: 0, kind: Unknown, section: None, flags: FlagSet(Global), align: None, virtual_address: None }), Bright, 0), (Eol, Normal, 0)]
+[(Address(60), Normal, 5), (Spacing(4), Normal, 0), (Opcode("addiu", 12), Normal, 10), (Argument(Opaque("$a0")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("$a0")), Normal, 0), (Basic(", "), Normal, 0), (Basic("%lo("), Normal, 0), (Symbol(Symbol { name: "PacketBottomNewVu1DropMicroCode", demangled_name: None, address: 0, size: 12, kind: Object, section: Some(7), flags: FlagSet(Global), align: None, virtual_address: None }), Bright, 0), (Basic(")"), Normal, 0), (Eol, Normal, 0)]
+[(Address(64), Normal, 5), (Spacing(4), Normal, 0), (Opcode("lw", 26), Normal, 10), (Argument(Opaque("$a0")), Normal, 0), (Basic(", "), Normal, 0), (Basic("%gp_rel("), Normal, 0), (Symbol(Symbol { name: "WorkEnd", demangled_name: None, address: 64, size: 4, kind: Object, section: Some(8), flags: FlagSet(Global), align: None, virtual_address: None }), Bright, 0), (Basic(")"), Normal, 0), (Basic("("), Normal, 0), (Argument(Opaque("$gp")), Normal, 0), (Basic(")"), Normal, 0), (Eol, Normal, 0)]
+[(Address(68), Normal, 5), (Spacing(4), Normal, 0), (Opcode("daddu", 97), Normal, 10), (Argument(Opaque("$a1")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("$zero")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("$zero")), Normal, 0), (Eol, Normal, 0)]
+[(Address(72), Normal, 5), (Spacing(4), Normal, 0), (Opcode("jal", 2), Normal, 10), (Symbol(Symbol { name: "SsdAddWaveData", demangled_name: None, address: 0, size: 0, kind: Unknown, section: None, flags: FlagSet(Global), align: None, virtual_address: None }), Bright, 0), (Eol, Normal, 0)]
+[(Address(76), Normal, 5), (Spacing(4), Normal, 0), (Opcode("daddu", 97), Normal, 10), (Argument(Opaque("$a2")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("$zero")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("$zero")), Normal, 0), (Eol, Normal, 0)]
+[(Address(80), Normal, 5), (Basic(" ~> "), Rotating(0), 0), (Opcode("jal", 2), Normal, 10), (Symbol(Symbol { name: "SsdSpuDmaCompleted", demangled_name: None, address: 0, size: 0, kind: Unknown, section: None, flags: FlagSet(Global), align: None, virtual_address: None }), Bright, 0), (Eol, Normal, 0)]
+[(Address(84), Normal, 5), (Spacing(4), Normal, 0), (Opcode("daddu", 97), Normal, 10), (Argument(Opaque("$a0")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("$zero")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("$zero")), Normal, 0), (Eol, Normal, 0)]
+[(Address(88), Normal, 5), (Spacing(4), Normal, 0), (Opcode("bnez", 56), Normal, 10), (Argument(Opaque("$v0")), Normal, 0), (Basic(", "), Normal, 0), (BranchDest(80), Normal, 0), (Basic(" ~>"), Rotating(0), 0), (Eol, Normal, 0)]
+[(Address(92), Normal, 5), (Spacing(4), Normal, 0), (Opcode("nop", 113), Normal, 10), (Eol, Normal, 0)]
+[(Address(96), Normal, 5), (Spacing(4), Normal, 0), (Opcode("jal", 2), Normal, 10), (Symbol(Symbol { name: "xglRenderDispOn", demangled_name: None, address: 0, size: 0, kind: Unknown, section: None, flags: FlagSet(Global), align: None, virtual_address: None }), Bright, 0), (Eol, Normal, 0)]
+[(Address(100), Normal, 5), (Spacing(4), Normal, 0), (Opcode("lui", 20), Normal, 10), (Argument(Opaque("$s1")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Unsigned(255)), Normal, 0), (Eol, Normal, 0)]
+[(Address(104), Normal, 5), (Spacing(4), Normal, 0), (Opcode("jal", 2), Normal, 10), (Symbol(Symbol { name: "xglCdLoadOverlay", demangled_name: None, address: 0, size: 0, kind: Unknown, section: None, flags: FlagSet(Global), align: None, virtual_address: None }), Bright, 0), (Eol, Normal, 0)]
+[(Address(108), Normal, 5), (Spacing(4), Normal, 0), (Opcode("addiu", 12), Normal, 10), (Argument(Opaque("$a0")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("$zero")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Signed(2)), Normal, 0), (Eol, Normal, 0)]
+[(Address(112), Normal, 5), (Spacing(4), Normal, 0), (Opcode("jal", 2), Normal, 10), (Symbol(Symbol { name: "LogoFirst", demangled_name: None, address: 0, size: 0, kind: Unknown, section: None, flags: FlagSet(Global), align: None, virtual_address: None }), Bright, 0), (Eol, Normal, 0)]
+[(Address(116), Normal, 5), (Spacing(4), Normal, 0), (Opcode("ori", 16), Normal, 10), (Argument(Opaque("$s1")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("$s1")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Unsigned(65535)), Normal, 0), (Eol, Normal, 0)]
+[(Address(120), Normal, 5), (Spacing(4), Normal, 0), (Opcode("lui", 20), Normal, 10), (Argument(Opaque("$v0")), Normal, 0), (Basic(", "), Normal, 0), (Basic("%hi("), Normal, 0), (Symbol(Symbol { name: "Title", demangled_name: None, address: 0, size: 0, kind: Unknown, section: None, flags: FlagSet(Global), align: None, virtual_address: None }), Bright, 0), (Basic(")"), Normal, 0), (Eol, Normal, 0)]
+[(Address(124), Normal, 5), (Spacing(4), Normal, 0), (Opcode("addiu", 12), Normal, 10), (Argument(Opaque("$s2")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("$v0")), Normal, 0), (Basic(", "), Normal, 0), (Basic("%lo("), Normal, 0), (Symbol(Symbol { name: "Title", demangled_name: None, address: 0, size: 0, kind: Unknown, section: None, flags: FlagSet(Global), align: None, virtual_address: None }), Bright, 0), (Basic(")"), Normal, 0), (Eol, Normal, 0)]
+[(Address(128), Normal, 5), (Basic(" ~> "), Rotating(1), 0), (Opcode("jal", 2), Normal, 10), (Symbol(Symbol { name: "xglCdLoadOverlay", demangled_name: None, address: 0, size: 0, kind: Unknown, section: None, flags: FlagSet(Global), align: None, virtual_address: None }), Bright, 0), (Eol, Normal, 0)]
+[(Address(132), Normal, 5), (Spacing(4), Normal, 0), (Opcode("addiu", 12), Normal, 10), (Argument(Opaque("$a0")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("$zero")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Signed(2)), Normal, 0), (Eol, Normal, 0)]
+[(Address(136), Normal, 5), (Spacing(4), Normal, 0), (Opcode("jal", 2), Normal, 10), (Symbol(Symbol { name: "Title", demangled_name: None, address: 0, size: 0, kind: Unknown, section: None, flags: FlagSet(Global), align: None, virtual_address: None }), Bright, 0), (Eol, Normal, 0)]
+[(Address(140), Normal, 5), (Spacing(4), Normal, 0), (Opcode("nop", 113), Normal, 10), (Eol, Normal, 0)]
+[(Address(144), Normal, 5), (Spacing(4), Normal, 0), (Opcode("beqz", 55), Normal, 10), (Argument(Opaque("$v0")), Normal, 0), (Basic(", "), Normal, 0), (BranchDest(128), Normal, 0), (Basic(" ~>"), Rotating(1), 0), (Eol, Normal, 0)]
+[(Address(148), Normal, 5), (Spacing(4), Normal, 0), (Opcode("and", 90), Normal, 10), (Argument(Opaque("$s0")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("$v0")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("$s1")), Normal, 0), (Eol, Normal, 0)]
+[(Address(152), Normal, 5), (Spacing(4), Normal, 0), (Opcode("beq", 3), Normal, 10), (Argument(Opaque("$s0")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("$s2")), Normal, 0), (Basic(", "), Normal, 0), (BranchDest(128), Normal, 0), (Basic(" ~>"), Rotating(1), 0), (Eol, Normal, 0)]
+[(Address(156), Normal, 5), (Spacing(4), Normal, 0), (Opcode("nop", 113), Normal, 10), (Eol, Normal, 0)]
+[(Address(160), Normal, 5), (Spacing(4), Normal, 0), (Opcode("jal", 2), Normal, 10), (Symbol(Symbol { name: "xglCdLoadOverlay", demangled_name: None, address: 0, size: 0, kind: Unknown, section: None, flags: FlagSet(Global), align: None, virtual_address: None }), Bright, 0), (Eol, Normal, 0)]
+[(Address(164), Normal, 5), (Spacing(4), Normal, 0), (Opcode("srl", 60), Normal, 10), (Argument(Opaque("$a0")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("$v0")), Normal, 0), (Basic(", "), Normal, 0), (Argument(Opaque("24")), Normal, 0), (Eol, Normal, 0)]
+[(Address(168), Normal, 5), (Spacing(4), Normal, 0), (Opcode("jalr", 77), Normal, 10), (Argument(Opaque("$s0")), Normal, 0), (Eol, Normal, 0)]
+[(Address(172), Normal, 5), (Spacing(4), Normal, 0), (Opcode("nop", 113), Normal, 10), (Eol, Normal, 0)]
+[(Address(176), Normal, 5), (Spacing(4), Normal, 0), (Opcode("b", 54), Normal, 10), (BranchDest(128), Normal, 0), (Basic(" ~>"), Rotating(1), 0), (Eol, Normal, 0)]
+[(Address(180), Normal, 5), (Spacing(4), Normal, 0), (Opcode("nop", 113), Normal, 10), (Eol, Normal, 0)]

objdiff-core/tests/snapshots/arch_ppc__diff_ppc.snap

@@ -0,0 +1,87 @@
+---
+source: objdiff-core/tests/arch_ppc.rs
+assertion_line: 70
+expression: sections_display
+---
+[
+    SectionDisplay {
+        id: ".comm",
+        name: ".comm",
+        size: 0,
+        match_percent: None,
+        symbols: [
+            SectionDisplaySymbol {
+                symbol: 11,
+                is_mapping_symbol: false,
+            },
+            SectionDisplaySymbol {
+                symbol: 12,
+                is_mapping_symbol: false,
+            },
+            SectionDisplaySymbol {
+                symbol: 13,
+                is_mapping_symbol: false,
+            },
+            SectionDisplaySymbol {
+                symbol: 14,
+                is_mapping_symbol: false,
+            },
+        ],
+    },
+    SectionDisplay {
+        id: ".ctors-0",
+        name: ".ctors",
+        size: 4,
+        match_percent: Some(
+            100.0,
+        ),
+        symbols: [
+            SectionDisplaySymbol {
+                symbol: 2,
+                is_mapping_symbol: false,
+            },
+        ],
+    },
+    SectionDisplay {
+        id: ".text-0",
+        name: ".text",
+        size: 3060,
+        match_percent: Some(
+            58.662746,
+        ),
+        symbols: [
+            SectionDisplaySymbol {
+                symbol: 3,
+                is_mapping_symbol: false,
+            },
+            SectionDisplaySymbol {
+                symbol: 10,
+                is_mapping_symbol: false,
+            },
+            SectionDisplaySymbol {
+                symbol: 9,
+                is_mapping_symbol: false,
+            },
+            SectionDisplaySymbol {
+                symbol: 8,
+                is_mapping_symbol: false,
+            },
+            SectionDisplaySymbol {
+                symbol: 7,
+                is_mapping_symbol: false,
+            },
+            SectionDisplaySymbol {
+                symbol: 6,
+                is_mapping_symbol: false,
+            },
+            SectionDisplaySymbol {
+                symbol: 5,
+                is_mapping_symbol: false,
+            },
+            SectionDisplaySymbol {
+                symbol: 4,
+                is_mapping_symbol: false,
+            },
+        ],
+    },
+]

objdiff-core/tests/snapshots/arch_ppc__read_dwarf1_line_info.snap

@@ -0,0 +1,40 @@
+---
+source: objdiff-core/tests/arch_ppc.rs
+expression: line_infos
+---
+[
+    {
+        0: 13,
+        4: 16,
+        32: 17,
+        44: 18,
+        60: 20,
+        76: 21,
+        84: 23,
+        92: 25,
+        108: 26,
+        124: 27,
+        136: 28,
+        144: 29,
+        152: 31,
+        164: 34,
+        184: 35,
+        212: 39,
+        228: 40,
+        236: 41,
+        260: 43,
+        288: 44,
+        292: 45,
+        300: 48,
+        436: 0,
+    },
+    {
+        0: 48,
+        132: 35,
+        244: 26,
+        304: 22,
+        312: 23,
+        316: 24,
+        320: 0,
+    },
+]