Use symbol name when comparing against an externed reloc (#214)

* Use symbol name when comparing against an externed reloc

For partial matching files, often a symbol is externed even though it
should exist in the target object. We can still compare the symbol name,
instead of always returning a mismatch.

* Combine cases, and apply change reloc_eq in code.rs

.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"]

Cargo.toml

@@ -14,7 +14,7 @@ strip = "debuginfo"
 codegen-units = 1
 
 [workspace.package]
-version = "3.0.0-beta.6"
+version = "3.0.0-beta.9"
 authors = ["Luke Street <luke@street.dev>"]
 edition = "2024"
 license = "MIT OR Apache-2.0"

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)
+- SuperH (Saturn, Dreamcast)
+- x86 (COFF only)
 
 See [Usage](#usage) for more information.
 

config.schema.json

@@ -175,6 +175,10 @@
           "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

@@ -103,6 +103,7 @@ allow = [
     "0BSD",
     "OFL-1.1",
     "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

objdiff-cli/Cargo.toml

@@ -28,7 +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 = "0.10"
+typed-path = "0.11"
 
 [target.'cfg(target_env = "musl")'.dependencies]
 mimalloc = "0.1"

objdiff-cli/src/cmd/report.rs

@@ -85,6 +85,9 @@ pub fn run(args: Args) -> Result<()> {
 fn generate(args: GenerateArgs) -> Result<()> {
     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)?;
@@ -225,6 +228,7 @@ fn report_object(
                 demangled_name: None,
                 virtual_address: section.virtual_address,
             }),
+            address: None,
         });
 
         match section.kind {
@@ -272,6 +276,7 @@ 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;
@@ -279,6 +284,16 @@ 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;

objdiff-cli/src/views/function_diff.rs

@@ -450,11 +450,11 @@ 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),
@@ -650,12 +650,3 @@ fn get_symbol(
     let sym = sym?;
     Some((obj, sym, &diff.symbols[sym]))
 }
-
-fn find_function(obj: &Object, name: &str) -> Option<usize> {
-    for (symbol_idx, symbol) in obj.symbols.iter().enumerate() {
-        if symbol.name == name {
-            return Some(symbol_idx);
-        }
-    }
-    None
-}

objdiff-core/Cargo.toml

@@ -41,6 +41,7 @@ any-arch = [
     "dep:regex",
     "dep:similar",
     "dep:syn",
+    "dep:encoding_rs"
 ]
 bindings = [
     "dep:prost",
@@ -133,7 +134,7 @@ prost = { version = "0.13", default-features = false, features = ["prost-derive"
 regex = { version = "1.11", default-features = false, features = [], optional = true }
 serde = { version = "1.0", default-features = false, features = ["derive"], optional = true }
 similar = { version = "2.7", default-features = false, features = ["hashbrown"], optional = true, git = "https://github.com/encounter/similar.git", branch = "no_std" }
-typed-path = { version = "0.10", default-features = false, optional = true }
+typed-path = { version = "0.11", default-features = false, optional = true }
 
 # config
 globset = { version = "0.4", default-features = false, optional = true }
@@ -158,7 +159,7 @@ iced-x86 = { version = "1.21", default-features = false, features = ["decoder",
 msvc-demangler = { version = "0.11", optional = true }
 
 # arm
-unarm = { version = "1.7", optional = true }
+unarm = { version = "1.8", optional = true }
 arm-attr = { version = "0.2", optional = true }
 
 # arm64
@@ -171,7 +172,7 @@ notify-debouncer-full = { version = "0.5.0", optional = true }
 shell-escape = { version = "0.1", optional = true }
 tempfile = { version = "3.19", optional = true }
 time = { version = "0.3", optional = true }
-encoding_rs = "0.8.35"
+encoding_rs = { version = "0.8.35", optional = true }
 
 [target.'cfg(windows)'.dependencies]
 winapi = { version = "0.3", optional = true }
@@ -200,4 +201,4 @@ syn = { version = "2.0", optional = true }
 [dev-dependencies]
 # Enable all features for tests
 objdiff-core = { path = ".", features = ["all"] }
-insta = "1.42"
+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 [ppc750cl](https://github.com/encounter/ppc750cl).
+- **`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/protos/report.proto

@@ -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

objdiff-core/src/arch/arm.rs

@@ -15,7 +15,7 @@ use crate::{
     diff::{ArmArchVersion, ArmR9Usage, DiffObjConfig, display::InstructionPart},
     obj::{
         InstructionRef, Relocation, RelocationFlags, ResolvedInstructionRef, ResolvedRelocation,
-        ScannedInstruction, Section, SectionKind, Symbol, SymbolFlag, SymbolFlagSet, SymbolKind,
+        Section, SectionKind, Symbol, SymbolFlag, SymbolFlagSet, SymbolKind,
     },
 };
 
@@ -187,14 +187,14 @@ impl Arch for ArchArm {
         self.disasm_modes = Self::get_mapping_symbols(sections, symbols);
     }
 
-    fn scan_instructions(
+    fn scan_instructions_internal(
         &self,
         address: u64,
         code: &[u8],
         section_index: usize,
         _relocations: &[Relocation],
         diff_config: &DiffObjConfig,
-    ) -> Result<Vec<ScannedInstruction>> {
+    ) -> Result<Vec<InstructionRef>> {
         let start_addr = address as u32;
         let end_addr = start_addr + code.len() as u32;
 
@@ -219,13 +219,13 @@ impl Arch for ArchArm {
         let mut next_mapping = mappings_iter.next();
 
         let ins_count = code.len() / mode.instruction_size(start_addr);
-        let mut ops = Vec::<ScannedInstruction>::with_capacity(ins_count);
+        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.take_if(|x| address >= x.address) {
+            while let Some(next) = next_mapping.filter(|x| address >= x.address) {
                 // Change mapping
                 mode = next.mapping;
                 next_mapping = mappings_iter.next();
@@ -235,12 +235,10 @@ impl Arch for ArchArm {
             let data = &code[(address - start_addr) as usize..];
             if data.len() < ins_size {
                 // Push the remainder as data
-                ops.push(ScannedInstruction {
-                    ins_ref: InstructionRef {
-                        address: address as u64,
-                        size: data.len() as u8,
-                        opcode: u16::MAX,
-                    },
+                ops.push(InstructionRef {
+                    address: address as u64,
+                    size: data.len() as u8,
+                    opcode: u16::MAX,
                     branch_dest: None,
                 });
                 break;
@@ -256,12 +254,10 @@ impl Arch for ArchArm {
                 }
                 _ => {
                     // Invalid instruction size
-                    ops.push(ScannedInstruction {
-                        ins_ref: InstructionRef {
-                            address: address as u64,
-                            size: ins_size as u8,
-                            opcode: u16::MAX,
-                        },
+                    ops.push(InstructionRef {
+                        address: address as u64,
+                        size: ins_size as u8,
+                        opcode: u16::MAX,
                         branch_dest: None,
                     });
                     address += ins_size as u32;
@@ -325,8 +321,10 @@ impl Arch for ArchArm {
                 unarm::ParseMode::Data => (u16::MAX, None),
             };
 
-            ops.push(ScannedInstruction {
-                ins_ref: InstructionRef { address: address as u64, size: ins_size as u8, opcode },
+            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;

objdiff-core/src/arch/arm64.rs

@@ -18,7 +18,6 @@ use crate::{
     diff::{DiffObjConfig, display::InstructionPart},
     obj::{
         InstructionRef, Relocation, RelocationFlags, ResolvedInstructionRef, ResolvedRelocation,
-        ScannedInstruction,
     },
 };
 
@@ -30,16 +29,16 @@ impl ArchArm64 {
 }
 
 impl Arch for ArchArm64 {
-    fn scan_instructions(
+    fn scan_instructions_internal(
         &self,
         address: u64,
         code: &[u8],
         _section_index: usize,
         _relocations: &[Relocation],
         _diff_config: &DiffObjConfig,
-    ) -> Result<Vec<ScannedInstruction>> {
+    ) -> Result<Vec<InstructionRef>> {
         let start_address = address;
-        let mut ops = Vec::<ScannedInstruction>::with_capacity(code.len() / 4);
+        let mut ops = Vec::<InstructionRef>::with_capacity(code.len() / 4);
 
         let mut reader = U8Reader::new(code);
         let decoder = InstDecoder::default();
@@ -58,8 +57,10 @@ impl Arch for ArchArm64 {
                     DecodeError::InvalidOpcode
                     | DecodeError::InvalidOperand
                     | DecodeError::IncompleteDecoder => {
-                        ops.push(ScannedInstruction {
-                            ins_ref: InstructionRef { address, size: 4, opcode: u16::MAX },
+                        ops.push(InstructionRef {
+                            address,
+                            size: 4,
+                            opcode: u16::MAX,
                             branch_dest: None,
                         });
                         continue;
@@ -68,9 +69,9 @@ impl Arch for ArchArm64 {
             }
 
             let opcode = opcode_to_u16(ins.opcode);
-            let ins_ref = InstructionRef { address, size: 4, opcode };
-            let branch_dest = branch_dest(ins_ref, &code[offset as usize..offset as usize + 4]);
-            ops.push(ScannedInstruction { ins_ref, branch_dest });
+            let branch_dest =
+                branch_dest(opcode, address, &code[offset as usize..offset as usize + 4]);
+            ops.push(InstructionRef { address, size: 4, opcode, branch_dest });
         }
 
         Ok(ops)
@@ -163,7 +164,7 @@ impl Arch for ArchArm64 {
     }
 }
 
-fn branch_dest(ins_ref: InstructionRef, code: &[u8]) -> Option<u64> {
+fn branch_dest(opcode: u16, address: u64, code: &[u8]) -> Option<u64> {
     const OPCODE_B: u16 = opcode_to_u16(Opcode::B);
     const OPCODE_BL: u16 = opcode_to_u16(Opcode::BL);
     const OPCODE_BCC: u16 = opcode_to_u16(Opcode::Bcc(0));
@@ -173,21 +174,21 @@ fn branch_dest(ins_ref: InstructionRef, code: &[u8]) -> Option<u64> {
     const OPCODE_TBNZ: u16 = opcode_to_u16(Opcode::TBNZ);
 
     let word = u32::from_le_bytes(code.try_into().ok()?);
-    match ins_ref.opcode {
+    match opcode {
         OPCODE_B | OPCODE_BL => {
             let offset = ((word & 0x03ff_ffff) << 2) as i32;
             let extended_offset = (offset << 4) >> 4;
-            ins_ref.address.checked_add_signed(extended_offset as i64)
+            address.checked_add_signed(extended_offset as i64)
         }
         OPCODE_BCC | OPCODE_CBZ | OPCODE_CBNZ => {
             let offset = (word as i32 & 0x00ff_ffe0) >> 3;
             let extended_offset = (offset << 11) >> 11;
-            ins_ref.address.checked_add_signed(extended_offset as i64)
+            address.checked_add_signed(extended_offset as i64)
         }
         OPCODE_TBZ | OPCODE_TBNZ => {
             let offset = (word as i32 & 0x0007_ffe0) >> 3;
             let extended_offset = (offset << 16) >> 16;
-            ins_ref.address.checked_add_signed(extended_offset as i64)
+            address.checked_add_signed(extended_offset as i64)
         }
         _ => None,
     }

objdiff-core/src/arch/mips.rs

@@ -3,7 +3,6 @@ use alloc::{
     string::{String, ToString},
     vec::Vec,
 };
-use core::ops::Range;
 
 use anyhow::{Result, bail};
 use object::{Endian as _, Object as _, ObjectSection as _, ObjectSymbol as _, elf};
@@ -19,7 +18,7 @@ use crate::{
     diff::{DiffObjConfig, MipsAbi, MipsInstrCategory, display::InstructionPart},
     obj::{
         InstructionArg, InstructionArgValue, InstructionRef, Relocation, RelocationFlags,
-        ResolvedInstructionRef, ResolvedRelocation, ScannedInstruction, SymbolFlag, SymbolFlagSet,
+        ResolvedInstructionRef, ResolvedRelocation, SymbolFlag, SymbolFlagSet,
     },
 };
 
@@ -189,16 +188,16 @@ impl ArchMips {
 }
 
 impl Arch for ArchMips {
-    fn scan_instructions(
+    fn scan_instructions_internal(
         &self,
         address: u64,
         code: &[u8],
         _section_index: usize,
         _relocations: &[Relocation],
         diff_config: &DiffObjConfig,
-    ) -> Result<Vec<ScannedInstruction>> {
+    ) -> Result<Vec<InstructionRef>> {
         let instruction_flags = self.instruction_flags(diff_config);
-        let mut ops = Vec::<ScannedInstruction>::with_capacity(code.len() / 4);
+        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()?);
@@ -206,10 +205,7 @@ impl Arch for ArchMips {
                 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(ScannedInstruction {
-                ins_ref: InstructionRef { address: cur_addr as u64, size: 4, opcode },
-                branch_dest,
-            });
+            ops.push(InstructionRef { address: cur_addr as u64, size: 4, opcode, branch_dest });
             cur_addr += 4;
         }
         Ok(ops)
@@ -225,16 +221,7 @@ impl Arch for ArchMips {
         let display_flags = self.instruction_display_flags(diff_config);
         let opcode = instruction.opcode();
         cb(InstructionPart::opcode(opcode.name(), opcode as u16))?;
-        let start_address = resolved.symbol.address;
-        let function_range = start_address..start_address + resolved.symbol.size;
-        push_args(
-            &instruction,
-            resolved.relocation,
-            function_range,
-            resolved.section_index,
-            &display_flags,
-            cb,
-        )?;
+        push_args(&instruction, resolved.relocation, &display_flags, cb)?;
         Ok(())
     }
 
@@ -338,8 +325,6 @@ impl Arch for ArchMips {
 fn push_args(
     instruction: &rabbitizer::Instruction,
     relocation: Option<ResolvedRelocation>,
-    function_range: Range<u64>,
-    section_index: usize,
     display_flags: &rabbitizer::InstructionDisplayFlags,
     mut arg_cb: impl FnMut(InstructionPart) -> Result<()>,
 ) -> Result<()> {
@@ -362,23 +347,7 @@ fn push_args(
             }
             ValuedOperand::core_label(..) | ValuedOperand::core_branch_target_label(..) => {
                 if let Some(resolved) = relocation {
-                    // 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 =
-                        resolved.symbol.address.checked_add_signed(resolved.relocation.addend);
-                    if resolved.symbol.section == Some(section_index)
-                        && target_address.is_some_and(|addr| {
-                            addr > function_range.start && addr < function_range.end
-                        })
-                    {
-                        // TODO move this logic up a level
-                        let target_address = target_address.unwrap();
-                        arg_cb(InstructionPart::branch_dest(target_address))?;
-                    } else {
-                        push_reloc(resolved.relocation, &mut arg_cb)?;
-                    }
+                    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)

objdiff-core/src/arch/mod.rs

@@ -11,8 +11,8 @@ use crate::{
         display::{ContextItem, HoverItem, InstructionPart},
     },
     obj::{
-        InstructionArg, Object, ParsedInstruction, Relocation, RelocationFlags,
-        ResolvedInstructionRef, ScannedInstruction, Section, Symbol, SymbolFlagSet, SymbolKind,
+        InstructionArg, InstructionRef, Object, ParsedInstruction, Relocation, RelocationFlags,
+        ResolvedInstructionRef, ResolvedSymbol, Section, Symbol, SymbolFlagSet, SymbolKind,
     },
     util::ReallySigned,
 };
@@ -182,46 +182,108 @@ impl DataType {
     }
 }
 
-pub trait Arch: Send + Sync + Debug {
-    // Finishes arch-specific initialization that must be done after sections have been combined.
-    fn post_init(&mut self, _sections: &[Section], _symbols: &[Symbol]) {}
-
+impl dyn Arch {
     /// 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(
+    /// See [`scan_instructions_internal`] for more details.
+    pub fn scan_instructions(
         &self,
-        address: u64,
-        code: &[u8],
-        section_index: usize,
-        relocations: &[Relocation],
+        resolved: ResolvedSymbol,
         diff_config: &DiffObjConfig,
-    ) -> Result<Vec<ScannedInstruction>>;
+    ) -> 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 {
+                if 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.
-    fn process_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) => args.push(arg.into_static()),
+                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() && !args.contains(&InstructionArg::Reloc) {
+        if resolved.relocation.is_some() && !relocation_emitted {
             args.push(InstructionArg::Reloc);
         }
         Ok(ParsedInstruction {
@@ -230,6 +292,26 @@ pub trait Arch: Send + Sync + Debug {
             args,
         })
     }
+}
+
+pub trait Arch: Send + Sync + Debug {
+    /// 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: &[Relocation],
+        diff_config: &DiffObjConfig,
+    ) -> Result<Vec<InstructionRef>>;
 
     /// Format an instruction for display.
     ///
@@ -332,14 +414,14 @@ impl ArchDummy {
 }
 
 impl Arch for ArchDummy {
-    fn scan_instructions(
+    fn scan_instructions_internal(
         &self,
         _address: u64,
         _code: &[u8],
         _section_index: usize,
         _relocations: &[Relocation],
         _diff_config: &DiffObjConfig,
-    ) -> Result<Vec<ScannedInstruction>> {
+    ) -> Result<Vec<InstructionRef>> {
         Ok(Vec::new())
     }
 

objdiff-core/src/arch/ppc.rs

@@ -19,7 +19,7 @@ use crate::{
     },
     obj::{
         InstructionRef, Object, Relocation, RelocationFlags, ResolvedInstructionRef,
-        ResolvedRelocation, ScannedInstruction, Symbol, SymbolFlag, SymbolFlagSet,
+        ResolvedRelocation, Symbol, SymbolFlag, SymbolFlagSet,
     },
 };
 
@@ -82,24 +82,22 @@ impl ArchPpc {
 }
 
 impl Arch for ArchPpc {
-    fn scan_instructions(
+    fn scan_instructions_internal(
         &self,
         address: u64,
         code: &[u8],
         _section_index: usize,
         _relocations: &[Relocation],
         _diff_config: &DiffObjConfig,
-    ) -> Result<Vec<ScannedInstruction>> {
+    ) -> Result<Vec<InstructionRef>> {
         ensure!(code.len() & 3 == 0, "Code length must be a multiple of 4");
         let ins_count = code.len() / 4;
-        let mut insts = Vec::<ScannedInstruction>::with_capacity(ins_count);
+        let mut insts = Vec::<InstructionRef>::with_capacity(ins_count);
         for (cur_addr, ins) in ppc750cl::InsIter::new(code, address as u32) {
-            insts.push(ScannedInstruction {
-                ins_ref: InstructionRef {
-                    address: cur_addr as u64,
-                    size: 4,
-                    opcode: u8::from(ins.op) as u16,
-                },
+            insts.push(InstructionRef {
+                address: cur_addr as u64,
+                size: 4,
+                opcode: u8::from(ins.op) as u16,
                 branch_dest: ins.branch_dest(cur_addr).map(u64::from),
             });
         }

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

@@ -1,3 +1,5 @@
+use alloc::{format, vec::Vec};
+
 use crate::{diff::display::InstructionPart, obj::ResolvedInstructionRef};
 
 static REG_NAMES: [&str; 16] = [

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

@@ -1,5 +1,4 @@
-use alloc::{string::String, vec::Vec};
-use std::collections::HashMap;
+use alloc::{collections::BTreeMap, format, string::String, vec, vec::Vec};
 
 use anyhow::{Result, bail};
 use object::elf;
@@ -7,9 +6,7 @@ use object::elf;
 use crate::{
     arch::{Arch, superh::disasm::sh2_disasm},
     diff::{DiffObjConfig, display::InstructionPart},
-    obj::{
-        InstructionRef, Relocation, RelocationFlags, ResolvedInstructionRef, ScannedInstruction,
-    },
+    obj::{InstructionRef, Relocation, RelocationFlags, ResolvedInstructionRef},
 };
 
 pub mod disasm;
@@ -27,15 +24,15 @@ struct DataInfo {
 }
 
 impl Arch for ArchSuperH {
-    fn scan_instructions(
+    fn scan_instructions_internal(
         &self,
         address: u64,
         code: &[u8],
         _section_index: usize,
         _relocations: &[Relocation],
         _diff_config: &DiffObjConfig,
-    ) -> Result<Vec<ScannedInstruction>> {
-        let mut ops = Vec::<ScannedInstruction>::with_capacity(code.len() / 2);
+    ) -> Result<Vec<InstructionRef>> {
+        let mut ops = Vec::<InstructionRef>::with_capacity(code.len() / 2);
         let mut offset = address;
 
         for chunk in code.chunks_exact(2) {
@@ -56,9 +53,7 @@ impl Arch for ArchSuperH {
                 Some(InstructionPart::Opcode(_, val)) => *val,
                 _ => 0,
             };
-            let ins_ref: InstructionRef =
-                InstructionRef { address: offset, size: 2, opcode: opcode_enum };
-            ops.push(ScannedInstruction { ins_ref, branch_dest });
+            ops.push(InstructionRef { address: offset, size: 2, opcode: opcode_enum, branch_dest });
             offset += 2;
         }
 
@@ -77,10 +72,12 @@ impl Arch for ArchSuperH {
 
         sh2_disasm(0, opcode, true, &mut parts, &resolved, &mut branch_dest);
 
-        if let Some(symbol_data) = resolved.section.symbol_data(resolved.symbol) {
+        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: HashMap<u64, DataInfo> = HashMap::<u64, DataInfo>::new();
+            let mut data_offsets = BTreeMap::<u64, DataInfo>::new();
 
             let mut pos: u64 = 0;
             for chunk in symbol_data.chunks_exact(2) {
@@ -255,7 +252,7 @@ mod test {
 
             arch.display_instruction(
                 ResolvedInstructionRef {
-                    ins_ref: InstructionRef { address: 0x1000, size: 2, opcode },
+                    ins_ref: InstructionRef { address: 0x1000, size: 2, opcode, branch_dest: None },
                     code: &code,
                     ..Default::default()
                 },
@@ -333,7 +330,7 @@ mod test {
 
             arch.display_instruction(
                 ResolvedInstructionRef {
-                    ins_ref: InstructionRef { address: 0x1000, size: 2, opcode },
+                    ins_ref: InstructionRef { address: 0x1000, size: 2, opcode, branch_dest: None },
                     code: &code,
                     ..Default::default()
                 },
@@ -416,7 +413,7 @@ mod test {
 
             arch.display_instruction(
                 ResolvedInstructionRef {
-                    ins_ref: InstructionRef { address: 0x1000, size: 2, opcode },
+                    ins_ref: InstructionRef { address: 0x1000, size: 2, opcode, branch_dest: None },
                     code: &code,
                     ..Default::default()
                 },
@@ -453,7 +450,7 @@ mod test {
 
             arch.display_instruction(
                 ResolvedInstructionRef {
-                    ins_ref: InstructionRef { address: 0x1000, size: 2, opcode },
+                    ins_ref: InstructionRef { address: 0x1000, size: 2, opcode, branch_dest: None },
                     code: &code,
                     ..Default::default()
                 },
@@ -502,7 +499,12 @@ mod test {
 
             arch.display_instruction(
                 ResolvedInstructionRef {
-                    ins_ref: InstructionRef { address: addr as u64, size: 2, opcode },
+                    ins_ref: InstructionRef {
+                        address: addr as u64,
+                        size: 2,
+                        opcode,
+                        branch_dest: None,
+                    },
                     code: &code,
                     ..Default::default()
                 },
@@ -538,7 +540,12 @@ mod test {
 
             arch.display_instruction(
                 ResolvedInstructionRef {
-                    ins_ref: InstructionRef { address: addr as u64, size: 2, opcode },
+                    ins_ref: InstructionRef {
+                        address: addr as u64,
+                        size: 2,
+                        opcode,
+                        branch_dest: None,
+                    },
                     code: &code,
                     ..Default::default()
                 },
@@ -577,7 +584,12 @@ mod test {
 
             arch.display_instruction(
                 ResolvedInstructionRef {
-                    ins_ref: InstructionRef { address: addr as u64, size: 2, opcode },
+                    ins_ref: InstructionRef {
+                        address: addr as u64,
+                        size: 2,
+                        opcode,
+                        branch_dest: None,
+                    },
                     code: &code,
                     ..Default::default()
                 },
@@ -616,7 +628,12 @@ mod test {
 
             arch.display_instruction(
                 ResolvedInstructionRef {
-                    ins_ref: InstructionRef { address: addr as u64, size: 2, opcode },
+                    ins_ref: InstructionRef {
+                        address: addr as u64,
+                        size: 2,
+                        opcode,
+                        branch_dest: None,
+                    },
                     code: &code,
                     ..Default::default()
                 },
@@ -648,7 +665,12 @@ mod test {
 
             arch.display_instruction(
                 ResolvedInstructionRef {
-                    ins_ref: InstructionRef { address: addr as u64, size: 2, opcode },
+                    ins_ref: InstructionRef {
+                        address: addr as u64,
+                        size: 2,
+                        opcode,
+                        branch_dest: None,
+                    },
                     code: &code,
                     ..Default::default()
                 },
@@ -677,7 +699,12 @@ mod test {
 
             arch.display_instruction(
                 ResolvedInstructionRef {
-                    ins_ref: InstructionRef { address: addr as u64, size: 2, opcode },
+                    ins_ref: InstructionRef {
+                        address: addr as u64,
+                        size: 2,
+                        opcode,
+                        branch_dest: None,
+                    },
                     code: &code,
                     ..Default::default()
                 },
@@ -709,7 +736,12 @@ mod test {
 
             arch.display_instruction(
                 ResolvedInstructionRef {
-                    ins_ref: InstructionRef { address: addr as u64, size: 2, opcode },
+                    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
@@ -754,7 +786,12 @@ mod test {
 
             arch.display_instruction(
                 ResolvedInstructionRef {
-                    ins_ref: InstructionRef { address: addr as u64, size: 2, opcode },
+                    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

objdiff-core/src/arch/x86.rs

@@ -6,14 +6,12 @@ use iced_x86::{
     Decoder, DecoderOptions, DecoratorKind, FormatterOutput, FormatterTextKind, GasFormatter,
     Instruction, IntelFormatter, MasmFormatter, NasmFormatter, NumberKind, OpKind, Register,
 };
-use object::{Endian as _, Object as _, ObjectSection as _, pe};
+use object::{Endian as _, Object as _, ObjectSection as _, elf, pe};
 
 use crate::{
     arch::Arch,
     diff::{DiffObjConfig, X86Formatter, display::InstructionPart},
-    obj::{
-        InstructionRef, Relocation, RelocationFlags, ResolvedInstructionRef, ScannedInstruction,
-    },
+    obj::{InstructionRef, Relocation, RelocationFlags, ResolvedInstructionRef},
 };
 
 #[derive(Debug)]
@@ -69,7 +67,11 @@ impl ArchX86 {
                     pe::IMAGE_REL_I386_DIR32 | pe::IMAGE_REL_I386_REL32 => Some(4),
                     _ => None,
                 },
-                _ => None,
+                RelocationFlags::Elf(typ) => match typ {
+                    elf::R_386_32 | elf::R_386_PC32 => Some(4),
+                    elf::R_386_16 => Some(2),
+                    _ => None,
+                },
             },
             Architecture::X86_64 => match flags {
                 RelocationFlags::Coff(typ) => match typ {
@@ -77,7 +79,11 @@ impl ArchX86 {
                     pe::IMAGE_REL_AMD64_ADDR64 => Some(8),
                     _ => None,
                 },
-                _ => None,
+                RelocationFlags::Elf(typ) => match typ {
+                    elf::R_X86_64_PC32 => Some(4),
+                    elf::R_X86_64_64 => Some(8),
+                    _ => None,
+                },
             },
         }
     }
@@ -86,14 +92,14 @@ impl ArchX86 {
 const DATA_OPCODE: u16 = u16::MAX - 1;
 
 impl Arch for ArchX86 {
-    fn scan_instructions(
+    fn scan_instructions_internal(
         &self,
         address: u64,
         code: &[u8],
         _section_index: usize,
         relocations: &[Relocation],
         _diff_config: &DiffObjConfig,
-    ) -> Result<Vec<ScannedInstruction>> {
+    ) -> Result<Vec<InstructionRef>> {
         let mut out = Vec::with_capacity(code.len() / 2);
         let mut decoder = self.decoder(code, address);
         let mut instruction = Instruction::default();
@@ -112,12 +118,10 @@ impl Arch for ArchX86 {
                         })?;
                         if decoder.set_position(decoder.position() + size).is_ok() {
                             decoder.set_ip(address + size as u64);
-                            out.push(ScannedInstruction {
-                                ins_ref: InstructionRef {
-                                    address,
-                                    size: size as u8,
-                                    opcode: DATA_OPCODE,
-                                },
+                            out.push(InstructionRef {
+                                address,
+                                size: size as u8,
+                                opcode: DATA_OPCODE,
                                 branch_dest: None,
                             });
                             reloc_iter.next();
@@ -134,12 +138,10 @@ impl Arch for ArchX86 {
                 OpKind::NearBranch64 => Some(instruction.near_branch64()),
                 _ => None,
             };
-            out.push(ScannedInstruction {
-                ins_ref: InstructionRef {
-                    address,
-                    size: instruction.len() as u8,
-                    opcode: instruction.mnemonic() as u16,
-                },
+            out.push(InstructionRef {
+                address,
+                size: instruction.len() as u8,
+                opcode: instruction.mnemonic() as u16,
                 branch_dest,
             });
         }
@@ -233,7 +235,8 @@ impl Arch for ArchX86 {
     ) -> Result<i64> {
         match self.arch {
             Architecture::X86 => match flags {
-                RelocationFlags::Coff(pe::IMAGE_REL_I386_DIR32 | pe::IMAGE_REL_I386_REL32) => {
+                RelocationFlags::Coff(pe::IMAGE_REL_I386_DIR32 | pe::IMAGE_REL_I386_REL32)
+                | RelocationFlags::Elf(elf::R_386_32 | elf::R_386_PC32) => {
                     let data =
                         section.data()?[address as usize..address as usize + 4].try_into()?;
                     Ok(self.endianness.read_i32_bytes(data) as i64)
@@ -241,12 +244,14 @@ impl Arch for ArchX86 {
                 flags => bail!("Unsupported x86 implicit relocation {flags:?}"),
             },
             Architecture::X86_64 => match flags {
-                RelocationFlags::Coff(pe::IMAGE_REL_AMD64_ADDR32NB | pe::IMAGE_REL_AMD64_REL32) => {
+                RelocationFlags::Coff(pe::IMAGE_REL_AMD64_ADDR32NB | pe::IMAGE_REL_AMD64_REL32)
+                | RelocationFlags::Elf(elf::R_X86_64_32 | elf::R_X86_64_PC32) => {
                     let data =
                         section.data()?[address as usize..address as usize + 4].try_into()?;
                     Ok(self.endianness.read_i32_bytes(data) as i64)
                 }
-                RelocationFlags::Coff(pe::IMAGE_REL_AMD64_ADDR64) => {
+                RelocationFlags::Coff(pe::IMAGE_REL_AMD64_ADDR64)
+                | RelocationFlags::Elf(elf::R_X86_64_64) => {
                     let data =
                         section.data()?[address as usize..address as usize + 8].try_into()?;
                     Ok(self.endianness.read_i64_bytes(data))
@@ -457,15 +462,16 @@ mod test {
             0xc7, 0x85, 0x68, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x8b, 0x04, 0x85, 0x00,
             0x00, 0x00, 0x00,
         ];
-        let scanned = arch.scan_instructions(0, &code, 0, &[], &DiffObjConfig::default()).unwrap();
+        let scanned =
+            arch.scan_instructions_internal(0, &code, 0, &[], &DiffObjConfig::default()).unwrap();
         assert_eq!(scanned.len(), 2);
-        assert_eq!(scanned[0].ins_ref.address, 0);
-        assert_eq!(scanned[0].ins_ref.size, 10);
-        assert_eq!(scanned[0].ins_ref.opcode, iced_x86::Mnemonic::Mov as u16);
+        assert_eq!(scanned[0].address, 0);
+        assert_eq!(scanned[0].size, 10);
+        assert_eq!(scanned[0].opcode, iced_x86::Mnemonic::Mov as u16);
         assert_eq!(scanned[0].branch_dest, None);
-        assert_eq!(scanned[1].ins_ref.address, 10);
-        assert_eq!(scanned[1].ins_ref.size, 7);
-        assert_eq!(scanned[1].ins_ref.opcode, iced_x86::Mnemonic::Mov as u16);
+        assert_eq!(scanned[1].address, 10);
+        assert_eq!(scanned[1].size, 7);
+        assert_eq!(scanned[1].opcode, iced_x86::Mnemonic::Mov as u16);
         assert_eq!(scanned[1].branch_dest, None);
     }
 
@@ -477,7 +483,7 @@ mod test {
         let mut parts = Vec::new();
         arch.display_instruction(
             ResolvedInstructionRef {
-                ins_ref: InstructionRef { address: 0x1234, size: 10, opcode },
+                ins_ref: InstructionRef { address: 0x1234, size: 10, opcode, branch_dest: None },
                 code: &code,
                 ..Default::default()
             },
@@ -513,7 +519,7 @@ mod test {
         let mut parts = Vec::new();
         arch.display_instruction(
             ResolvedInstructionRef {
-                ins_ref: InstructionRef { address: 0x1234, size: 10, opcode },
+                ins_ref: InstructionRef { address: 0x1234, size: 10, opcode, branch_dest: None },
                 code: &code,
                 relocation: Some(ResolvedRelocation {
                     relocation: &Relocation {
@@ -558,7 +564,7 @@ mod test {
         let mut parts = Vec::new();
         arch.display_instruction(
             ResolvedInstructionRef {
-                ins_ref: InstructionRef { address: 0x1234, size: 7, opcode },
+                ins_ref: InstructionRef { address: 0x1234, size: 7, opcode, branch_dest: None },
                 code: &code,
                 relocation: Some(ResolvedRelocation {
                     relocation: &Relocation {
@@ -601,7 +607,7 @@ mod test {
         let mut parts = Vec::new();
         arch.display_instruction(
             ResolvedInstructionRef {
-                ins_ref: InstructionRef { address: 0x1234, size: 5, opcode },
+                ins_ref: InstructionRef { address: 0x1234, size: 5, opcode, branch_dest: None },
                 code: &code,
                 relocation: Some(ResolvedRelocation {
                     relocation: &Relocation {
@@ -632,7 +638,7 @@ mod test {
         let mut parts = Vec::new();
         arch.display_instruction(
             ResolvedInstructionRef {
-                ins_ref: InstructionRef { address: 0x1234, size: 6, opcode },
+                ins_ref: InstructionRef { address: 0x1234, size: 6, opcode, branch_dest: None },
                 code: &code,
                 relocation: Some(ResolvedRelocation {
                     relocation: &Relocation {
@@ -671,7 +677,7 @@ mod test {
         let mut parts = Vec::new();
         arch.display_instruction(
             ResolvedInstructionRef {
-                ins_ref: InstructionRef { address: 0x1234, size: 7, opcode },
+                ins_ref: InstructionRef { address: 0x1234, size: 7, opcode, branch_dest: None },
                 code: &code,
                 relocation: Some(ResolvedRelocation {
                     relocation: &Relocation {
@@ -710,7 +716,7 @@ mod test {
         let mut parts = Vec::new();
         arch.display_instruction(
             ResolvedInstructionRef {
-                ins_ref: InstructionRef { address: 0x1234, size: 5, opcode },
+                ins_ref: InstructionRef { address: 0x1234, size: 5, opcode, branch_dest: None },
                 code: &code,
                 relocation: Some(ResolvedRelocation {
                     relocation: &Relocation {

objdiff-core/src/bindings/report.rs

@@ -434,6 +434,7 @@ impl From<LegacyReportItem> for ReportItem {
                 demangled_name: value.demangled_name,
                 virtual_address: value.address,
             }),
+            address: None,
         }
     }
 }

objdiff-core/src/diff/code.rs

@@ -14,15 +14,15 @@ use super::{
 };
 use crate::obj::{
     InstructionArg, InstructionArgValue, InstructionRef, Object, ResolvedInstructionRef,
-    ResolvedRelocation, ScannedInstruction, SymbolFlag, SymbolKind,
+    ResolvedRelocation, ResolvedSymbol, SymbolFlag, SymbolKind,
 };
 
 pub fn no_diff_code(
     obj: &Object,
-    symbol_idx: usize,
+    symbol_index: usize,
     diff_config: &DiffObjConfig,
 ) -> Result<SymbolDiff> {
-    let symbol = &obj.symbols[symbol_idx];
+    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(|| {
@@ -33,18 +33,14 @@ pub fn no_diff_code(
         )
     })?;
     let ops = obj.arch.scan_instructions(
-        symbol.address,
-        data,
-        section_index,
-        &section.relocations,
+        ResolvedSymbol { obj, symbol_index, symbol, section_index, section, data },
         diff_config,
     )?;
     let mut instruction_rows = Vec::<InstructionDiffRow>::new();
     for i in &ops {
-        instruction_rows
-            .push(InstructionDiffRow { ins_ref: Some(i.ins_ref), ..Default::default() });
+        instruction_rows.push(InstructionDiffRow { ins_ref: Some(*i), ..Default::default() });
     }
-    resolve_branches(obj, section_index, &ops, &mut instruction_rows);
+    resolve_branches(&ops, &mut instruction_rows);
     Ok(SymbolDiff { target_symbol: None, match_percent: None, diff_score: None, instruction_rows })
 }
 
@@ -92,22 +88,30 @@ pub fn diff_code(
     let left_section_idx = left_symbol.section.unwrap();
     let right_section_idx = right_symbol.section.unwrap();
     let left_ops = left_obj.arch.scan_instructions(
-        left_symbol.address,
-        left_data,
-        left_section_idx,
-        &left_section.relocations,
+        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(
-        right_symbol.address,
-        right_data,
-        right_section_idx,
-        &right_section.relocations,
+        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_obj, left_section_idx, &left_ops, &mut left_rows);
-    resolve_branches(right_obj, right_section_idx, &right_ops, &mut right_rows);
+    resolve_branches(&left_ops, &mut left_rows);
+    resolve_branches(&right_ops, &mut right_rows);
 
     let mut diff_state = InstructionDiffState::default();
     for (left_row, right_row) in left_rows.iter_mut().zip(right_rows.iter_mut()) {
@@ -154,21 +158,21 @@ pub fn diff_code(
 }
 
 fn diff_instructions(
-    left_insts: &[ScannedInstruction],
-    right_insts: &[ScannedInstruction],
+    left_insts: &[InstructionRef],
+    right_insts: &[InstructionRef],
 ) -> Result<(Vec<InstructionDiffRow>, Vec<InstructionDiffRow>)> {
-    let left_ops = left_insts.iter().map(|i| i.ins_ref.opcode).collect::<Vec<_>>();
-    let right_ops = right_insts.iter().map(|i| i.ins_ref.opcode).collect::<Vec<_>>();
+    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() {
         ensure!(left_insts.len() == right_insts.len());
         let left_diff = left_insts
             .iter()
-            .map(|i| InstructionDiffRow { ins_ref: Some(i.ins_ref), ..Default::default() })
+            .map(|i| InstructionDiffRow { ins_ref: Some(*i), ..Default::default() })
             .collect();
         let right_diff = right_insts
             .iter()
-            .map(|i| InstructionDiffRow { ins_ref: Some(i.ins_ref), ..Default::default() })
+            .map(|i| InstructionDiffRow { ins_ref: Some(*i), ..Default::default() })
             .collect();
         return Ok((left_diff, right_diff));
     }
@@ -187,14 +191,17 @@ fn diff_instructions(
     for op in ops {
         let (_tag, left_range, right_range) = op.as_tag_tuple();
         let len = left_range.len().max(right_range.len());
-        left_diff.extend(left_range.clone().map(|i| InstructionDiffRow {
-            ins_ref: Some(left_insts[i].ins_ref),
-            ..Default::default()
-        }));
-        right_diff.extend(right_range.clone().map(|i| InstructionDiffRow {
-            ins_ref: Some(right_insts[i].ins_ref),
-            ..Default::default()
-        }));
+        left_diff.extend(
+            left_range
+                .clone()
+                .map(|i| InstructionDiffRow { ins_ref: Some(left_insts[i]), ..Default::default() }),
+        );
+        right_diff.extend(
+            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(|_| InstructionDiffRow::default()));
         }
@@ -215,13 +222,7 @@ fn arg_to_string(arg: &InstructionArg, reloc: Option<ResolvedRelocation>) -> Str
     }
 }
 
-fn resolve_branches(
-    obj: &Object,
-    section_index: usize,
-    ops: &[ScannedInstruction],
-    rows: &mut [InstructionDiffRow],
-) {
-    let section = &obj.sections[section_index];
+fn resolve_branches(ops: &[InstructionRef], rows: &mut [InstructionDiffRow]) {
     let mut branch_idx = 0u32;
     // Map addresses to indices
     let mut addr_map = BTreeMap::<u64, u32>::new();
@@ -235,17 +236,7 @@ fn resolve_branches(
     for ((i, ins_diff), ins) in
         rows.iter_mut().enumerate().filter(|(_, row)| row.ins_ref.is_some()).zip(ops)
     {
-        let branch_dest = if let Some(resolved) = section.relocation_at(obj, ins.ins_ref) {
-            if resolved.symbol.section == Some(section_index) {
-                // If the relocation target is in the same section, use it as the branch destination
-                resolved.symbol.address.checked_add_signed(resolved.relocation.addend)
-            } else {
-                None
-            }
-        } else {
-            ins.branch_dest
-        };
-        if let Some(ins_idx) = branch_dest.and_then(|a| addr_map.get(&a).copied()) {
+        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 });
@@ -334,12 +325,11 @@ fn reloc_eq(
                     || 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_addend_matches && right_reloc.symbol.flags.contains(SymbolFlag::Weak)
         }
-        (None, None) => symbol_name_addend_matches,
+        (Some(_), None) | (None, None) => symbol_name_addend_matches,
     }
 }
 

objdiff-core/src/diff/data.rs

@@ -53,12 +53,11 @@ fn reloc_eq(
             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_addend_matches && right.symbol.flags.contains(SymbolFlag::Weak)
         }
-        (None, None) => symbol_name_addend_matches,
+        (Some(_), None) | (None, None) => symbol_name_addend_matches,
     }
 }
 
@@ -274,7 +273,6 @@ 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))
@@ -413,7 +411,7 @@ pub fn diff_generic_section(
     };
     Ok((
         SectionDiff { match_percent: Some(match_percent), data_diff: vec![], reloc_diff: vec![] },
-        SectionDiff { match_percent: Some(match_percent), data_diff: vec![], reloc_diff: vec![] },
+        SectionDiff { match_percent: None, data_diff: vec![], reloc_diff: vec![] },
     ))
 }
 
@@ -454,7 +452,7 @@ pub fn diff_bss_section(
 
     Ok((
         SectionDiff { match_percent: Some(match_percent), data_diff: vec![], reloc_diff: vec![] },
-        SectionDiff { match_percent: Some(match_percent), data_diff: vec![], reloc_diff: vec![] },
+        SectionDiff { match_percent: None, data_diff: vec![], reloc_diff: vec![] },
     ))
 }
 

objdiff-core/src/diff/display.rs

@@ -77,7 +77,7 @@ impl<'a> DiffTextSegment<'a> {
 const EOL_SEGMENT: DiffTextSegment<'static> =
     DiffTextSegment { text: DiffText::Eol, color: DiffTextColor::Normal, pad_to: 0 };
 
-#[derive(Debug, Default, Clone, PartialEq, Eq)]
+#[derive(Debug, Default, Clone)]
 pub enum HighlightKind {
     #[default]
     None,
@@ -205,16 +205,18 @@ pub fn display_row(
         InstructionPart::Arg(arg) => {
             let diff_index = ins_row.arg_diff.get(arg_idx).copied().unwrap_or_default();
             arg_idx += 1;
-            match arg {
-                InstructionArg::Value(value) => cb(DiffTextSegment {
+            if arg == InstructionArg::Reloc {
+                displayed_relocation = true;
+            }
+            match (arg, resolved.ins_ref.branch_dest) {
+                (InstructionArg::Value(value), _) => cb(DiffTextSegment {
                     text: DiffText::Argument(value),
                     color: diff_index
                         .get()
                         .map_or(base_color, |i| DiffTextColor::Rotating(i as u8)),
                     pad_to: 0,
                 }),
-                InstructionArg::Reloc => {
-                    displayed_relocation = true;
+                (InstructionArg::Reloc, None) => {
                     let resolved = resolved.relocation.unwrap();
                     let color = diff_index
                         .get()
@@ -233,7 +235,9 @@ pub fn display_row(
                     }
                     Ok(())
                 }
-                InstructionArg::BranchDest(dest) => {
+                (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),
@@ -284,6 +288,18 @@ pub fn display_row(
     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,
+        }
+    }
+}
+
 impl PartialEq<DiffText<'_>> for HighlightKind {
     fn eq(&self, other: &DiffText) -> bool {
         match (self, other) {
@@ -684,24 +700,25 @@ pub fn display_sections(
             .collect::<Vec<_>>();
         if let Some(section_idx) = section_idx {
             let section = &obj.sections[section_idx];
-            if section.kind == SectionKind::Unknown || section.flags.contains(SectionFlag::Hidden) {
+            if section.kind == SectionKind::Unknown {
                 // Skip unknown and hidden sections
                 continue;
             }
             let section_diff = &diff.sections[section_idx];
-            if section.kind == SectionKind::Code && reverse_fn_order {
-                symbols.sort_by(|a, b| {
-                    let a_symbol = &obj.symbols[a.symbol];
-                    let b_symbol = &obj.symbols[b.symbol];
-                    symbol_sort_reverse(a_symbol, b_symbol)
-                });
-            } else {
-                symbols.sort_by(|a, b| {
-                    let a_symbol = &obj.symbols[a.symbol];
-                    let b_symbol = &obj.symbols[b.symbol];
-                    symbol_sort(a_symbol, b_symbol)
-                });
-            }
+            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) {
@@ -739,14 +756,6 @@ fn section_symbol_sort(a: &Symbol, b: &Symbol) -> Ordering {
     Ordering::Equal
 }
 
-fn symbol_sort(a: &Symbol, b: &Symbol) -> Ordering {
-    section_symbol_sort(a, b).then(a.address.cmp(&b.address)).then(a.size.cmp(&b.size))
-}
-
-fn symbol_sort_reverse(a: &Symbol, b: &Symbol) -> Ordering {
-    section_symbol_sort(a, b).then(b.address.cmp(&a.address)).then(b.size.cmp(&a.size))
-}
-
 pub fn display_ins_data_labels(obj: &Object, resolved: ResolvedInstructionRef) -> Vec<String> {
     let Some(reloc) = resolved.relocation else {
         return Vec::new();

objdiff-core/src/diff/mod.rs

@@ -341,11 +341,25 @@ pub fn diff_objs(
     if let (Some((right_obj, right_out)), Some((left_obj, left_out))) =
         (right.as_mut(), left.as_mut())
     {
-        if let Some(right_name) = &mapping_config.selecting_left {
-            generate_mapping_symbols(right_obj, right_name, left_obj, left_out, diff_config)?;
+        if let Some(right_name) = mapping_config.selecting_left.as_deref() {
+            generate_mapping_symbols(
+                left_obj,
+                left_out,
+                right_obj,
+                right_out,
+                MappingSymbol::Right(right_name),
+                diff_config,
+            )?;
         }
-        if let Some(left_name) = &mapping_config.selecting_right {
-            generate_mapping_symbols(left_obj, left_name, right_obj, right_out, diff_config)?;
+        if let Some(left_name) = mapping_config.selecting_right.as_deref() {
+            generate_mapping_symbols(
+                left_obj,
+                left_out,
+                right_obj,
+                right_out,
+                MappingSymbol::Left(left_name),
+                diff_config,
+            )?;
         }
     }
 
@@ -356,17 +370,28 @@ pub fn diff_objs(
     })
 }
 
+#[derive(Clone, Copy)]
+enum MappingSymbol<'a> {
+    Left(&'a str),
+    Right(&'a str),
+}
+
 /// When we're selecting a symbol to use as a comparison, we'll create comparisons for all
 /// symbols in the other object that match the selected symbol's section and kind. This allows
 /// us to display match percentages for all symbols in the other object that could be selected.
 fn generate_mapping_symbols(
-    base_obj: &Object,
-    base_name: &str,
-    target_obj: &Object,
-    target_out: &mut ObjectDiff,
+    left_obj: &Object,
+    left_out: &mut ObjectDiff,
+    right_obj: &Object,
+    right_out: &mut ObjectDiff,
+    mapping_symbol: MappingSymbol,
     config: &DiffObjConfig,
 ) -> Result<()> {
-    let Some(base_symbol_ref) = symbol_ref_by_name(base_obj, base_name) else {
+    let (base_obj, base_name, target_obj) = match mapping_symbol {
+        MappingSymbol::Left(name) => (left_obj, name, right_obj),
+        MappingSymbol::Right(name) => (right_obj, name, left_obj),
+    };
+    let Some(base_symbol_ref) = base_obj.symbol_by_name(base_name) else {
         return Ok(());
     };
     let base_section_kind = symbol_section_kind(base_obj, &base_obj.symbols[base_symbol_ref]);
@@ -377,32 +402,30 @@ fn generate_mapping_symbols(
         {
             continue;
         }
-        match base_section_kind {
+        let (left_symbol_idx, right_symbol_idx) = match mapping_symbol {
+            MappingSymbol::Left(_) => (base_symbol_ref, target_symbol_index),
+            MappingSymbol::Right(_) => (target_symbol_index, base_symbol_ref),
+        };
+        let (left_diff, right_diff) = match base_section_kind {
             SectionKind::Code => {
-                let (left_diff, _right_diff) =
-                    diff_code(target_obj, base_obj, target_symbol_index, base_symbol_ref, config)?;
-                target_out.mapping_symbols.push(MappingSymbolDiff {
-                    symbol_index: target_symbol_index,
-                    symbol_diff: left_diff,
-                });
+                diff_code(left_obj, right_obj, left_symbol_idx, right_symbol_idx, config)
             }
             SectionKind::Data => {
-                let (left_diff, _right_diff) =
-                    diff_data_symbol(target_obj, base_obj, target_symbol_index, base_symbol_ref)?;
-                target_out.mapping_symbols.push(MappingSymbolDiff {
-                    symbol_index: target_symbol_index,
-                    symbol_diff: left_diff,
-                });
+                diff_data_symbol(left_obj, right_obj, left_symbol_idx, right_symbol_idx)
             }
             SectionKind::Bss | SectionKind::Common => {
-                let (left_diff, _right_diff) =
-                    diff_bss_symbol(target_obj, base_obj, target_symbol_index, base_symbol_ref)?;
-                target_out.mapping_symbols.push(MappingSymbolDiff {
-                    symbol_index: target_symbol_index,
-                    symbol_diff: left_diff,
-                });
+                diff_bss_symbol(left_obj, right_obj, left_symbol_idx, right_symbol_idx)
             }
-            SectionKind::Unknown => {}
+            SectionKind::Unknown => continue,
+        }?;
+        match mapping_symbol {
+            MappingSymbol::Left(_) => right_out.mapping_symbols.push(MappingSymbolDiff {
+                symbol_index: right_symbol_idx,
+                symbol_diff: right_diff,
+            }),
+            MappingSymbol::Right(_) => left_out
+                .mapping_symbols
+                .push(MappingSymbolDiff { symbol_index: left_symbol_idx, symbol_diff: left_diff }),
         }
     }
     Ok(())
@@ -434,10 +457,6 @@ pub struct MappingConfig {
     pub selecting_right: Option<String>,
 }
 
-fn symbol_ref_by_name(obj: &Object, name: &str) -> Option<usize> {
-    obj.symbols.iter().position(|s| s.name == name)
-}
-
 fn apply_symbol_mappings(
     left: &Object,
     right: &Object,
@@ -449,25 +468,25 @@ fn apply_symbol_mappings(
     // If we're selecting a symbol to use as a comparison, mark it as used
     // This ensures that we don't match it to another symbol at any point
     if let Some(left_name) = &mapping_config.selecting_left {
-        if let Some(left_symbol) = symbol_ref_by_name(left, left_name) {
+        if let Some(left_symbol) = left.symbol_by_name(left_name) {
             left_used.insert(left_symbol);
         }
     }
     if let Some(right_name) = &mapping_config.selecting_right {
-        if let Some(right_symbol) = symbol_ref_by_name(right, right_name) {
+        if let Some(right_symbol) = right.symbol_by_name(right_name) {
             right_used.insert(right_symbol);
         }
     }
 
     // Apply manual symbol mappings
     for (left_name, right_name) in &mapping_config.mappings {
-        let Some(left_symbol_index) = symbol_ref_by_name(left, left_name) else {
+        let Some(left_symbol_index) = left.symbol_by_name(left_name) else {
             continue;
         };
         if left_used.contains(&left_symbol_index) {
             continue;
         }
-        let Some(right_symbol_index) = symbol_ref_by_name(right, right_name) else {
+        let Some(right_symbol_index) = right.symbol_by_name(right_name) else {
             continue;
         };
         if right_used.contains(&right_symbol_index) {
@@ -658,7 +677,11 @@ fn find_symbol(
 
 /// Find matching sections between each object.
 fn matching_sections(left: Option<&Object>, right: Option<&Object>) -> Result<Vec<SectionMatch>> {
-    let mut matches = Vec::new();
+    let mut matches = Vec::with_capacity(
+        left.as_ref()
+            .map_or(0, |o| o.sections.len())
+            .max(right.as_ref().map_or(0, |o| o.sections.len())),
+    );
     if let Some(left) = left {
         for (section_idx, section) in left.sections.iter().enumerate() {
             if section.kind == SectionKind::Unknown {
@@ -666,7 +689,7 @@ fn matching_sections(left: Option<&Object>, right: Option<&Object>) -> Result<Ve
             }
             matches.push(SectionMatch {
                 left: Some(section_idx),
-                right: find_section(right, &section.name, section.kind),
+                right: find_section(right, &section.name, section.kind, &matches),
                 section_kind: section.kind,
             });
         }
@@ -689,6 +712,13 @@ fn matching_sections(left: Option<&Object>, right: Option<&Object>) -> Result<Ve
     Ok(matches)
 }
 
-fn find_section(obj: Option<&Object>, name: &str, section_kind: SectionKind) -> Option<usize> {
-    obj?.sections.iter().position(|s| s.kind == section_kind && s.name == name)
+fn find_section(
+    obj: Option<&Object>,
+    name: &str,
+    section_kind: SectionKind,
+    matches: &[SectionMatch],
+) -> Option<usize> {
+    obj?.sections.iter().enumerate().position(|(i, s)| {
+        s.kind == section_kind && s.name == name && !matches.iter().any(|m| m.right == Some(i))
+    })
 }

objdiff-core/src/obj/mod.rs

@@ -57,7 +57,6 @@ flags! {
     pub enum SectionFlag: u8 {
         /// Section combined from multiple input sections
         Combined,
-        Hidden,
     }
 }
 
@@ -99,19 +98,8 @@ impl fmt::Debug for SectionData {
 
 impl Section {
     pub fn data_range(&self, address: u64, size: usize) -> Option<&[u8]> {
-        let start = self.address;
-        let end = start + self.size;
-        if address >= start && address + size as u64 <= end {
-            let offset = (address - start) as usize;
-            Some(&self.data[offset..offset + size])
-        } else {
-            None
-        }
-    }
-
-    pub fn symbol_data(&self, symbol: &Symbol) -> Option<&[u8]> {
-        let offset = symbol.address.checked_sub(self.address)?;
-        self.data.get(offset as usize..offset as usize + symbol.size as usize)
+        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.
@@ -130,7 +118,7 @@ impl Section {
             Err(i) => self
                 .relocations
                 .get(i)
-                .take_if(|r| r.address < ins_ref.address + ins_ref.size as u64),
+                .filter(|r| r.address < ins_ref.address + ins_ref.size as u64),
         }
         .and_then(|relocation| {
             let symbol = obj.symbols.get(relocation.target_symbol)?;
@@ -226,11 +214,6 @@ pub struct InstructionRef {
     pub address: u64,
     pub size: u8,
     pub opcode: u16,
-}
-
-#[derive(Copy, Clone, Debug)]
-pub struct ScannedInstruction {
-    pub ins_ref: InstructionRef,
     pub branch_dest: Option<u64>,
 }
 
@@ -325,6 +308,10 @@ impl Object {
         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)
+    }
 }
 
 #[derive(Debug, Clone, Eq, PartialEq, Hash)]
@@ -347,6 +334,16 @@ pub struct ResolvedRelocation<'a> {
     pub symbol: &'a 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,

objdiff-core/src/obj/read.rs

@@ -121,6 +121,15 @@ fn map_symbols(
     Ok((symbols, symbol_indices))
 }
 
+/// When inferring a symbol's size, we ignore symbols that start with specific prefixes. They are
+/// usually emitted as branch targets and do not represent the start of a function or object.
+fn is_local_label(symbol: &Symbol) -> bool {
+    const LABEL_PREFIXES: &[&str] = &[".L", "LAB_"];
+    symbol.size == 0
+        && symbol.flags.contains(SymbolFlag::Local)
+        && LABEL_PREFIXES.iter().any(|p| symbol.name.starts_with(p))
+}
+
 fn infer_symbol_sizes(symbols: &mut [Symbol], sections: &[Section]) {
     // Create a sorted list of symbol indices by section
     let mut symbols_with_section = Vec::<usize>::with_capacity(symbols.len());
@@ -167,27 +176,28 @@ fn infer_symbol_sizes(symbols: &mut [Symbol], sections: &[Section]) {
         if last_end.0 == section_idx && last_end.1 > symbol.address {
             continue;
         }
-        let next_symbol = match symbol.kind {
-            // For function/object symbols, find the next function/object symbol (in other words:
-            // skip over labels)
-            SymbolKind::Function | SymbolKind::Object => loop {
-                if iter_idx >= symbols_with_section.len() {
-                    break None;
+        let next_symbol = loop {
+            if iter_idx >= symbols_with_section.len() {
+                break None;
+            }
+            let next_symbol = &symbols[symbols_with_section[iter_idx]];
+            if next_symbol.section != Some(section_idx) {
+                break None;
+            }
+            if match symbol.kind {
+                SymbolKind::Function | SymbolKind::Object => {
+                    // For function/object symbols, find the next function/object
+                    matches!(next_symbol.kind, SymbolKind::Function | SymbolKind::Object)
                 }
-                let next_symbol = &symbols[symbols_with_section[iter_idx]];
-                if next_symbol.section != Some(section_idx) {
-                    break None;
+                SymbolKind::Unknown | SymbolKind::Section => {
+                    // For labels (or anything else), stop at any symbol
+                    true
                 }
-                if let SymbolKind::Function | SymbolKind::Object = next_symbol.kind {
-                    break Some(next_symbol);
-                }
-                iter_idx += 1;
-            },
-            // For labels (or anything else), simply use the next symbol's address
-            SymbolKind::Unknown | SymbolKind::Section => symbols_with_section
-                .get(iter_idx)
-                .map(|&i| &symbols[i])
-                .take_if(|s| s.section == Some(section_idx)),
+            } && !is_local_label(next_symbol)
+            {
+                break Some(next_symbol);
+            }
+            iter_idx += 1;
         };
         let next_address = next_symbol.map(|s| s.address).unwrap_or_else(|| {
             let section = &sections[section_idx];
@@ -341,7 +351,7 @@ fn map_section_relocations(
                 let idx = if let Some(section_symbol) = obj_file
                     .symbol_by_index(idx)
                     .ok()
-                    .take_if(|s| s.kind() == object::SymbolKind::Section)
+                    .filter(|s| s.kind() == object::SymbolKind::Section)
                 {
                     let section_index =
                         section_symbol.section_index().context("Section symbol without section")?;
@@ -764,7 +774,7 @@ fn do_combine_sections(
         line_info.append(&mut section.line_info.iter().map(|(&a, &l)| (a + offset, l)).collect());
         section.line_info.clear();
         if offset > 0 {
-            section.flags |= SectionFlag::Hidden;
+            section.kind = SectionKind::Unknown;
         }
     }
     {

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

@@ -84,11 +84,11 @@ expression: "(sections, symbols)"
             name: ".data",
             address: 0,
             size: 0,
-            kind: Data,
+            kind: Unknown,
             data: SectionData(
                 0,
             ),
-            flags: FlagSet(Hidden),
+            flags: FlagSet(),
             align: None,
             relocations: [],
             line_info: {},
@@ -99,11 +99,11 @@ expression: "(sections, symbols)"
             name: ".data",
             address: 0,
             size: 0,
-            kind: Data,
+            kind: Unknown,
             data: SectionData(
                 0,
             ),
-            flags: FlagSet(Hidden),
+            flags: FlagSet(),
             align: None,
             relocations: [],
             line_info: {},

objdiff-core/src/util.rs

@@ -57,6 +57,5 @@ pub fn align_data_to_4<W: std::io::Write + ?Sized>(
 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) {
-    const ALIGN_BYTE: u8 = 0;
-    data.resize(align_u64_to(data.len() as u64, align) as usize, ALIGN_BYTE);
+    data.resize(align_u64_to(data.len() as u64, align) as usize, 0);
 }

objdiff-core/tests/arch_x86.rs

@@ -68,3 +68,12 @@ fn read_x86_jumptable() {
     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/snapshots/arch_arm__combine_text_sections.snap

@@ -1,6 +1,5 @@
 ---
 source: objdiff-core/tests/arch_arm.rs
-assertion_line: 43
 expression: diff.instruction_rows
 ---
 [
@@ -10,6 +9,7 @@ expression: diff.instruction_rows
                 address: 76,
                 size: 4,
                 opcode: 32799,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -23,6 +23,7 @@ expression: diff.instruction_rows
                 address: 80,
                 size: 4,
                 opcode: 32779,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -36,6 +37,7 @@ expression: diff.instruction_rows
                 address: 84,
                 size: 4,
                 opcode: 65535,
+                branch_dest: None,
             },
         ),
         kind: None,

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

@@ -9,6 +9,7 @@ expression: diff.instruction_rows
                 address: 40,
                 size: 4,
                 opcode: 32895,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -22,6 +23,7 @@ expression: diff.instruction_rows
                 address: 44,
                 size: 4,
                 opcode: 32818,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -35,6 +37,7 @@ expression: diff.instruction_rows
                 address: 48,
                 size: 4,
                 opcode: 32818,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -48,6 +51,7 @@ expression: diff.instruction_rows
                 address: 52,
                 size: 4,
                 opcode: 32774,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -61,6 +65,7 @@ expression: diff.instruction_rows
                 address: 56,
                 size: 4,
                 opcode: 32799,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -74,6 +79,7 @@ expression: diff.instruction_rows
                 address: 60,
                 size: 4,
                 opcode: 32786,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -87,6 +93,7 @@ expression: diff.instruction_rows
                 address: 64,
                 size: 4,
                 opcode: 32770,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -100,6 +107,9 @@ expression: diff.instruction_rows
                 address: 68,
                 size: 4,
                 opcode: 32773,
+                branch_dest: Some(
+                    240,
+                ),
             },
         ),
         kind: None,
@@ -118,6 +128,9 @@ expression: diff.instruction_rows
                 address: 72,
                 size: 4,
                 opcode: 32773,
+                branch_dest: Some(
+                    240,
+                ),
             },
         ),
         kind: None,
@@ -136,6 +149,9 @@ expression: diff.instruction_rows
                 address: 76,
                 size: 4,
                 opcode: 32773,
+                branch_dest: Some(
+                    240,
+                ),
             },
         ),
         kind: None,
@@ -154,6 +170,9 @@ expression: diff.instruction_rows
                 address: 80,
                 size: 4,
                 opcode: 32773,
+                branch_dest: Some(
+                    240,
+                ),
             },
         ),
         kind: None,
@@ -172,6 +191,9 @@ expression: diff.instruction_rows
                 address: 84,
                 size: 4,
                 opcode: 32773,
+                branch_dest: Some(
+                    232,
+                ),
             },
         ),
         kind: None,
@@ -190,6 +212,9 @@ expression: diff.instruction_rows
                 address: 88,
                 size: 4,
                 opcode: 32773,
+                branch_dest: Some(
+                    164,
+                ),
             },
         ),
         kind: None,
@@ -208,6 +233,9 @@ expression: diff.instruction_rows
                 address: 92,
                 size: 4,
                 opcode: 32773,
+                branch_dest: Some(
+                    240,
+                ),
             },
         ),
         kind: None,
@@ -226,6 +254,9 @@ expression: diff.instruction_rows
                 address: 96,
                 size: 4,
                 opcode: 32773,
+                branch_dest: Some(
+                    180,
+                ),
             },
         ),
         kind: None,
@@ -244,6 +275,9 @@ expression: diff.instruction_rows
                 address: 100,
                 size: 4,
                 opcode: 32773,
+                branch_dest: Some(
+                    116,
+                ),
             },
         ),
         kind: None,
@@ -262,6 +296,9 @@ expression: diff.instruction_rows
                 address: 104,
                 size: 4,
                 opcode: 32773,
+                branch_dest: Some(
+                    192,
+                ),
             },
         ),
         kind: None,
@@ -280,6 +317,9 @@ expression: diff.instruction_rows
                 address: 108,
                 size: 4,
                 opcode: 32773,
+                branch_dest: Some(
+                    204,
+                ),
             },
         ),
         kind: None,
@@ -298,6 +338,9 @@ expression: diff.instruction_rows
                 address: 112,
                 size: 4,
                 opcode: 32773,
+                branch_dest: Some(
+                    204,
+                ),
             },
         ),
         kind: None,
@@ -316,6 +359,7 @@ expression: diff.instruction_rows
                 address: 116,
                 size: 4,
                 opcode: 32799,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -336,6 +380,7 @@ expression: diff.instruction_rows
                 address: 120,
                 size: 4,
                 opcode: 32799,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -349,6 +394,7 @@ expression: diff.instruction_rows
                 address: 124,
                 size: 4,
                 opcode: 32774,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -362,6 +408,7 @@ expression: diff.instruction_rows
                 address: 128,
                 size: 4,
                 opcode: 32800,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -375,6 +422,7 @@ expression: diff.instruction_rows
                 address: 132,
                 size: 4,
                 opcode: 32786,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -388,6 +436,9 @@ expression: diff.instruction_rows
                 address: 136,
                 size: 4,
                 opcode: 32773,
+                branch_dest: Some(
+                    148,
+                ),
             },
         ),
         kind: None,
@@ -406,6 +457,9 @@ expression: diff.instruction_rows
                 address: 140,
                 size: 4,
                 opcode: 32774,
+                branch_dest: Some(
+                    464,
+                ),
             },
         ),
         kind: None,
@@ -424,6 +478,7 @@ expression: diff.instruction_rows
                 address: 144,
                 size: 4,
                 opcode: 32774,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -437,6 +492,7 @@ expression: diff.instruction_rows
                 address: 148,
                 size: 4,
                 opcode: 32799,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -457,6 +513,7 @@ expression: diff.instruction_rows
                 address: 152,
                 size: 4,
                 opcode: 32799,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -470,6 +527,7 @@ expression: diff.instruction_rows
                 address: 156,
                 size: 4,
                 opcode: 32777,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -483,6 +541,9 @@ expression: diff.instruction_rows
                 address: 160,
                 size: 4,
                 opcode: 32773,
+                branch_dest: Some(
+                    240,
+                ),
             },
         ),
         kind: None,
@@ -501,6 +562,7 @@ expression: diff.instruction_rows
                 address: 164,
                 size: 4,
                 opcode: 32818,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -521,6 +583,7 @@ expression: diff.instruction_rows
                 address: 168,
                 size: 4,
                 opcode: 32818,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -534,6 +597,7 @@ expression: diff.instruction_rows
                 address: 172,
                 size: 4,
                 opcode: 32774,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -547,6 +611,9 @@ expression: diff.instruction_rows
                 address: 176,
                 size: 4,
                 opcode: 32773,
+                branch_dest: Some(
+                    240,
+                ),
             },
         ),
         kind: None,
@@ -565,6 +632,7 @@ expression: diff.instruction_rows
                 address: 180,
                 size: 4,
                 opcode: 32818,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -585,6 +653,7 @@ expression: diff.instruction_rows
                 address: 184,
                 size: 4,
                 opcode: 32774,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -598,6 +667,9 @@ expression: diff.instruction_rows
                 address: 188,
                 size: 4,
                 opcode: 32773,
+                branch_dest: Some(
+                    240,
+                ),
             },
         ),
         kind: None,
@@ -616,6 +688,7 @@ expression: diff.instruction_rows
                 address: 192,
                 size: 4,
                 opcode: 32818,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -636,6 +709,7 @@ expression: diff.instruction_rows
                 address: 196,
                 size: 4,
                 opcode: 32774,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -649,6 +723,9 @@ expression: diff.instruction_rows
                 address: 200,
                 size: 4,
                 opcode: 32773,
+                branch_dest: Some(
+                    240,
+                ),
             },
         ),
         kind: None,
@@ -667,6 +744,7 @@ expression: diff.instruction_rows
                 address: 204,
                 size: 4,
                 opcode: 32799,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -688,6 +766,7 @@ expression: diff.instruction_rows
                 address: 208,
                 size: 4,
                 opcode: 32818,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -701,6 +780,7 @@ expression: diff.instruction_rows
                 address: 212,
                 size: 4,
                 opcode: 32799,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -714,6 +794,7 @@ expression: diff.instruction_rows
                 address: 216,
                 size: 4,
                 opcode: 32818,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -727,6 +808,7 @@ expression: diff.instruction_rows
                 address: 220,
                 size: 4,
                 opcode: 32899,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -740,6 +822,7 @@ expression: diff.instruction_rows
                 address: 224,
                 size: 4,
                 opcode: 32774,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -753,6 +836,9 @@ expression: diff.instruction_rows
                 address: 228,
                 size: 4,
                 opcode: 32773,
+                branch_dest: Some(
+                    240,
+                ),
             },
         ),
         kind: None,
@@ -771,6 +857,7 @@ expression: diff.instruction_rows
                 address: 232,
                 size: 4,
                 opcode: 32818,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -791,6 +878,7 @@ expression: diff.instruction_rows
                 address: 236,
                 size: 4,
                 opcode: 32774,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -804,6 +892,7 @@ expression: diff.instruction_rows
                 address: 240,
                 size: 4,
                 opcode: 32799,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -833,6 +922,7 @@ expression: diff.instruction_rows
                 address: 244,
                 size: 4,
                 opcode: 32829,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -846,6 +936,7 @@ expression: diff.instruction_rows
                 address: 248,
                 size: 4,
                 opcode: 32786,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -859,6 +950,9 @@ expression: diff.instruction_rows
                 address: 252,
                 size: 4,
                 opcode: 32773,
+                branch_dest: Some(
+                    276,
+                ),
             },
         ),
         kind: None,
@@ -877,6 +971,7 @@ expression: diff.instruction_rows
                 address: 256,
                 size: 4,
                 opcode: 32818,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -890,6 +985,7 @@ expression: diff.instruction_rows
                 address: 260,
                 size: 4,
                 opcode: 32774,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -903,6 +999,7 @@ expression: diff.instruction_rows
                 address: 264,
                 size: 4,
                 opcode: 32799,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -916,6 +1013,7 @@ expression: diff.instruction_rows
                 address: 268,
                 size: 4,
                 opcode: 32799,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -929,6 +1027,7 @@ expression: diff.instruction_rows
                 address: 272,
                 size: 4,
                 opcode: 32778,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -942,6 +1041,7 @@ expression: diff.instruction_rows
                 address: 276,
                 size: 4,
                 opcode: 32799,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -962,6 +1062,7 @@ expression: diff.instruction_rows
                 address: 280,
                 size: 4,
                 opcode: 32786,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -975,6 +1076,9 @@ expression: diff.instruction_rows
                 address: 284,
                 size: 4,
                 opcode: 32773,
+                branch_dest: Some(
+                    328,
+                ),
             },
         ),
         kind: None,
@@ -993,6 +1097,9 @@ expression: diff.instruction_rows
                 address: 288,
                 size: 4,
                 opcode: 32773,
+                branch_dest: Some(
+                    336,
+                ),
             },
         ),
         kind: None,
@@ -1011,6 +1118,7 @@ expression: diff.instruction_rows
                 address: 292,
                 size: 4,
                 opcode: 32786,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1024,6 +1132,9 @@ expression: diff.instruction_rows
                 address: 296,
                 size: 4,
                 opcode: 32773,
+                branch_dest: Some(
+                    348,
+                ),
             },
         ),
         kind: None,
@@ -1042,6 +1153,7 @@ expression: diff.instruction_rows
                 address: 300,
                 size: 4,
                 opcode: 32829,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1055,6 +1167,7 @@ expression: diff.instruction_rows
                 address: 304,
                 size: 4,
                 opcode: 32786,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1068,6 +1181,9 @@ expression: diff.instruction_rows
                 address: 308,
                 size: 4,
                 opcode: 32773,
+                branch_dest: Some(
+                    348,
+                ),
             },
         ),
         kind: None,
@@ -1086,6 +1202,7 @@ expression: diff.instruction_rows
                 address: 312,
                 size: 4,
                 opcode: 32786,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1099,6 +1216,7 @@ expression: diff.instruction_rows
                 address: 316,
                 size: 4,
                 opcode: 32786,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1112,6 +1230,9 @@ expression: diff.instruction_rows
                 address: 320,
                 size: 4,
                 opcode: 32773,
+                branch_dest: Some(
+                    380,
+                ),
             },
         ),
         kind: None,
@@ -1130,6 +1251,9 @@ expression: diff.instruction_rows
                 address: 324,
                 size: 4,
                 opcode: 32773,
+                branch_dest: Some(
+                    348,
+                ),
             },
         ),
         kind: None,
@@ -1148,6 +1272,7 @@ expression: diff.instruction_rows
                 address: 328,
                 size: 4,
                 opcode: 32786,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1168,6 +1293,9 @@ expression: diff.instruction_rows
                 address: 332,
                 size: 4,
                 opcode: 32773,
+                branch_dest: Some(
+                    348,
+                ),
             },
         ),
         kind: None,
@@ -1186,6 +1314,7 @@ expression: diff.instruction_rows
                 address: 336,
                 size: 4,
                 opcode: 32818,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1206,6 +1335,7 @@ expression: diff.instruction_rows
                 address: 340,
                 size: 4,
                 opcode: 32774,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1219,6 +1349,9 @@ expression: diff.instruction_rows
                 address: 344,
                 size: 4,
                 opcode: 32773,
+                branch_dest: Some(
+                    380,
+                ),
             },
         ),
         kind: None,
@@ -1237,6 +1370,7 @@ expression: diff.instruction_rows
                 address: 348,
                 size: 4,
                 opcode: 32818,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1260,6 +1394,7 @@ expression: diff.instruction_rows
                 address: 352,
                 size: 4,
                 opcode: 32774,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1273,6 +1408,7 @@ expression: diff.instruction_rows
                 address: 356,
                 size: 4,
                 opcode: 32786,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1286,6 +1422,7 @@ expression: diff.instruction_rows
                 address: 360,
                 size: 4,
                 opcode: 32786,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1299,6 +1436,9 @@ expression: diff.instruction_rows
                 address: 364,
                 size: 4,
                 opcode: 32773,
+                branch_dest: Some(
+                    380,
+                ),
             },
         ),
         kind: None,
@@ -1317,6 +1457,7 @@ expression: diff.instruction_rows
                 address: 368,
                 size: 4,
                 opcode: 32774,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1330,6 +1471,7 @@ expression: diff.instruction_rows
                 address: 372,
                 size: 4,
                 opcode: 32818,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1343,6 +1485,7 @@ expression: diff.instruction_rows
                 address: 376,
                 size: 4,
                 opcode: 32899,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1356,6 +1499,7 @@ expression: diff.instruction_rows
                 address: 380,
                 size: 4,
                 opcode: 32829,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1378,6 +1522,7 @@ expression: diff.instruction_rows
                 address: 384,
                 size: 4,
                 opcode: 32770,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1391,6 +1536,7 @@ expression: diff.instruction_rows
                 address: 388,
                 size: 4,
                 opcode: 32770,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1404,6 +1550,7 @@ expression: diff.instruction_rows
                 address: 392,
                 size: 4,
                 opcode: 32898,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1417,6 +1564,7 @@ expression: diff.instruction_rows
                 address: 396,
                 size: 4,
                 opcode: 32786,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1430,6 +1578,9 @@ expression: diff.instruction_rows
                 address: 400,
                 size: 4,
                 opcode: 32773,
+                branch_dest: Some(
+                    424,
+                ),
             },
         ),
         kind: None,
@@ -1448,6 +1599,7 @@ expression: diff.instruction_rows
                 address: 404,
                 size: 4,
                 opcode: 32818,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1468,6 +1620,7 @@ expression: diff.instruction_rows
                 address: 408,
                 size: 4,
                 opcode: 32774,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1481,6 +1634,7 @@ expression: diff.instruction_rows
                 address: 412,
                 size: 4,
                 opcode: 32770,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1494,6 +1648,7 @@ expression: diff.instruction_rows
                 address: 416,
                 size: 4,
                 opcode: 32786,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1507,6 +1662,9 @@ expression: diff.instruction_rows
                 address: 420,
                 size: 4,
                 opcode: 32773,
+                branch_dest: Some(
+                    404,
+                ),
             },
         ),
         kind: None,
@@ -1525,6 +1683,7 @@ expression: diff.instruction_rows
                 address: 424,
                 size: 4,
                 opcode: 32799,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1545,6 +1704,7 @@ expression: diff.instruction_rows
                 address: 428,
                 size: 4,
                 opcode: 32799,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1558,6 +1718,7 @@ expression: diff.instruction_rows
                 address: 432,
                 size: 4,
                 opcode: 32800,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1571,6 +1732,7 @@ expression: diff.instruction_rows
                 address: 436,
                 size: 4,
                 opcode: 32786,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1584,6 +1746,9 @@ expression: diff.instruction_rows
                 address: 440,
                 size: 4,
                 opcode: 32773,
+                branch_dest: Some(
+                    448,
+                ),
             },
         ),
         kind: None,
@@ -1602,6 +1767,7 @@ expression: diff.instruction_rows
                 address: 444,
                 size: 4,
                 opcode: 32774,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1615,6 +1781,7 @@ expression: diff.instruction_rows
                 address: 448,
                 size: 4,
                 opcode: 32818,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1635,6 +1802,7 @@ expression: diff.instruction_rows
                 address: 452,
                 size: 4,
                 opcode: 32899,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1648,6 +1816,7 @@ expression: diff.instruction_rows
                 address: 456,
                 size: 4,
                 opcode: 32793,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1661,6 +1830,7 @@ expression: diff.instruction_rows
                 address: 460,
                 size: 4,
                 opcode: 65535,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1674,6 +1844,7 @@ expression: diff.instruction_rows
                 address: 464,
                 size: 4,
                 opcode: 65535,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1694,6 +1865,7 @@ expression: diff.instruction_rows
                 address: 468,
                 size: 4,
                 opcode: 65535,
+                branch_dest: None,
             },
         ),
         kind: None,

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

@@ -1,6 +1,5 @@
 ---
 source: objdiff-core/tests/arch_arm.rs
-assertion_line: 16
 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)]
@@ -28,7 +27,7 @@ expression: output
 [(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), (Symbol(Symbol { name: "_ZN13LinkStateItem15GetEquipBombchuEv", demangled_name: Some("LinkStateItem::GetEquipBombchu()"), address: 472, size: 16, kind: Function, section: Some(0), flags: FlagSet(Global), align: None, virtual_address: None }), Bright, 0), (Addend(-8), Bright, 0), (Basic(" ~>"), Rotating(8), 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)]

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

@@ -9,6 +9,7 @@ expression: diff.instruction_rows
                 address: 0,
                 size: 2,
                 opcode: 56,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -22,6 +23,7 @@ expression: diff.instruction_rows
                 address: 2,
                 size: 2,
                 opcode: 74,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -35,6 +37,7 @@ expression: diff.instruction_rows
                 address: 4,
                 size: 2,
                 opcode: 47,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -48,6 +51,7 @@ expression: diff.instruction_rows
                 address: 6,
                 size: 2,
                 opcode: 47,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -61,6 +65,7 @@ expression: diff.instruction_rows
                 address: 8,
                 size: 2,
                 opcode: 47,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -74,6 +79,7 @@ expression: diff.instruction_rows
                 address: 10,
                 size: 2,
                 opcode: 47,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -87,6 +93,7 @@ expression: diff.instruction_rows
                 address: 12,
                 size: 2,
                 opcode: 66,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -100,6 +107,7 @@ expression: diff.instruction_rows
                 address: 14,
                 size: 4,
                 opcode: 19,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -113,6 +121,7 @@ expression: diff.instruction_rows
                 address: 18,
                 size: 2,
                 opcode: 25,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -126,6 +135,9 @@ expression: diff.instruction_rows
                 address: 20,
                 size: 2,
                 opcode: 15,
+                branch_dest: Some(
+                    212,
+                ),
             },
         ),
         kind: None,
@@ -144,6 +156,7 @@ expression: diff.instruction_rows
                 address: 22,
                 size: 2,
                 opcode: 38,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -157,6 +170,7 @@ expression: diff.instruction_rows
                 address: 24,
                 size: 2,
                 opcode: 25,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -170,6 +184,9 @@ expression: diff.instruction_rows
                 address: 26,
                 size: 2,
                 opcode: 15,
+                branch_dest: Some(
+                    48,
+                ),
             },
         ),
         kind: None,
@@ -188,6 +205,7 @@ expression: diff.instruction_rows
                 address: 28,
                 size: 2,
                 opcode: 34,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -201,6 +219,7 @@ expression: diff.instruction_rows
                 address: 30,
                 size: 2,
                 opcode: 26,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -214,6 +233,9 @@ expression: diff.instruction_rows
                 address: 32,
                 size: 2,
                 opcode: 15,
+                branch_dest: Some(
+                    94,
+                ),
             },
         ),
         kind: None,
@@ -232,6 +254,7 @@ expression: diff.instruction_rows
                 address: 34,
                 size: 2,
                 opcode: 35,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -245,6 +268,7 @@ expression: diff.instruction_rows
                 address: 36,
                 size: 2,
                 opcode: 47,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -258,6 +282,7 @@ expression: diff.instruction_rows
                 address: 38,
                 size: 2,
                 opcode: 47,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -271,6 +296,7 @@ expression: diff.instruction_rows
                 address: 40,
                 size: 4,
                 opcode: 19,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -284,6 +310,7 @@ expression: diff.instruction_rows
                 address: 44,
                 size: 2,
                 opcode: 7,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -297,6 +324,7 @@ expression: diff.instruction_rows
                 address: 46,
                 size: 2,
                 opcode: 55,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -310,6 +338,7 @@ expression: diff.instruction_rows
                 address: 48,
                 size: 2,
                 opcode: 47,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -330,6 +359,7 @@ expression: diff.instruction_rows
                 address: 50,
                 size: 2,
                 opcode: 47,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -343,6 +373,7 @@ expression: diff.instruction_rows
                 address: 52,
                 size: 4,
                 opcode: 19,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -356,6 +387,7 @@ expression: diff.instruction_rows
                 address: 56,
                 size: 2,
                 opcode: 25,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -369,6 +401,9 @@ expression: diff.instruction_rows
                 address: 58,
                 size: 2,
                 opcode: 15,
+                branch_dest: Some(
+                    212,
+                ),
             },
         ),
         kind: None,
@@ -387,6 +422,7 @@ expression: diff.instruction_rows
                 address: 60,
                 size: 2,
                 opcode: 34,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -400,6 +436,7 @@ expression: diff.instruction_rows
                 address: 62,
                 size: 2,
                 opcode: 33,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -413,6 +450,7 @@ expression: diff.instruction_rows
                 address: 64,
                 size: 2,
                 opcode: 36,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -426,6 +464,7 @@ expression: diff.instruction_rows
                 address: 66,
                 size: 2,
                 opcode: 42,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -439,6 +478,7 @@ expression: diff.instruction_rows
                 address: 68,
                 size: 2,
                 opcode: 44,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -452,6 +492,9 @@ expression: diff.instruction_rows
                 address: 70,
                 size: 2,
                 opcode: 15,
+                branch_dest: Some(
+                    212,
+                ),
             },
         ),
         kind: None,
@@ -470,6 +513,7 @@ expression: diff.instruction_rows
                 address: 72,
                 size: 2,
                 opcode: 46,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -483,6 +527,7 @@ expression: diff.instruction_rows
                 address: 74,
                 size: 2,
                 opcode: 17,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -496,6 +541,7 @@ expression: diff.instruction_rows
                 address: 76,
                 size: 2,
                 opcode: 46,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -509,6 +555,7 @@ expression: diff.instruction_rows
                 address: 78,
                 size: 2,
                 opcode: 54,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -522,6 +569,7 @@ expression: diff.instruction_rows
                 address: 80,
                 size: 2,
                 opcode: 67,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -535,6 +583,7 @@ expression: diff.instruction_rows
                 address: 82,
                 size: 2,
                 opcode: 36,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -548,6 +597,7 @@ expression: diff.instruction_rows
                 address: 84,
                 size: 2,
                 opcode: 46,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -561,6 +611,7 @@ expression: diff.instruction_rows
                 address: 86,
                 size: 2,
                 opcode: 7,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -574,6 +625,7 @@ expression: diff.instruction_rows
                 address: 88,
                 size: 2,
                 opcode: 54,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -587,6 +639,7 @@ expression: diff.instruction_rows
                 address: 90,
                 size: 2,
                 opcode: 67,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -600,6 +653,7 @@ expression: diff.instruction_rows
                 address: 92,
                 size: 2,
                 opcode: 55,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -613,6 +667,7 @@ expression: diff.instruction_rows
                 address: 94,
                 size: 2,
                 opcode: 34,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -633,6 +688,7 @@ expression: diff.instruction_rows
                 address: 96,
                 size: 2,
                 opcode: 34,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -646,6 +702,7 @@ expression: diff.instruction_rows
                 address: 98,
                 size: 2,
                 opcode: 4,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -659,6 +716,7 @@ expression: diff.instruction_rows
                 address: 100,
                 size: 4,
                 opcode: 19,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -672,6 +730,7 @@ expression: diff.instruction_rows
                 address: 104,
                 size: 2,
                 opcode: 66,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -685,6 +744,7 @@ expression: diff.instruction_rows
                 address: 106,
                 size: 2,
                 opcode: 47,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -698,6 +758,7 @@ expression: diff.instruction_rows
                 address: 108,
                 size: 4,
                 opcode: 19,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -711,6 +772,7 @@ expression: diff.instruction_rows
                 address: 112,
                 size: 2,
                 opcode: 47,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -724,6 +786,7 @@ expression: diff.instruction_rows
                 address: 114,
                 size: 2,
                 opcode: 6,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -737,6 +800,7 @@ expression: diff.instruction_rows
                 address: 116,
                 size: 2,
                 opcode: 66,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -750,6 +814,7 @@ expression: diff.instruction_rows
                 address: 118,
                 size: 2,
                 opcode: 35,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -763,6 +828,7 @@ expression: diff.instruction_rows
                 address: 120,
                 size: 2,
                 opcode: 47,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -776,6 +842,7 @@ expression: diff.instruction_rows
                 address: 122,
                 size: 2,
                 opcode: 47,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -789,6 +856,7 @@ expression: diff.instruction_rows
                 address: 124,
                 size: 2,
                 opcode: 47,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -802,6 +870,7 @@ expression: diff.instruction_rows
                 address: 126,
                 size: 4,
                 opcode: 19,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -815,6 +884,7 @@ expression: diff.instruction_rows
                 address: 130,
                 size: 2,
                 opcode: 25,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -828,6 +898,9 @@ expression: diff.instruction_rows
                 address: 132,
                 size: 2,
                 opcode: 15,
+                branch_dest: Some(
+                    168,
+                ),
             },
         ),
         kind: None,
@@ -846,6 +919,7 @@ expression: diff.instruction_rows
                 address: 134,
                 size: 2,
                 opcode: 47,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -859,6 +933,7 @@ expression: diff.instruction_rows
                 address: 136,
                 size: 4,
                 opcode: 19,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -872,6 +947,7 @@ expression: diff.instruction_rows
                 address: 140,
                 size: 2,
                 opcode: 47,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -885,6 +961,7 @@ expression: diff.instruction_rows
                 address: 142,
                 size: 2,
                 opcode: 25,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -898,6 +975,9 @@ expression: diff.instruction_rows
                 address: 144,
                 size: 2,
                 opcode: 15,
+                branch_dest: Some(
+                    168,
+                ),
             },
         ),
         kind: None,
@@ -916,6 +996,7 @@ expression: diff.instruction_rows
                 address: 146,
                 size: 2,
                 opcode: 34,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -929,6 +1010,7 @@ expression: diff.instruction_rows
                 address: 148,
                 size: 2,
                 opcode: 33,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -942,6 +1024,7 @@ expression: diff.instruction_rows
                 address: 150,
                 size: 2,
                 opcode: 36,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -955,6 +1038,7 @@ expression: diff.instruction_rows
                 address: 152,
                 size: 2,
                 opcode: 42,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -968,6 +1052,7 @@ expression: diff.instruction_rows
                 address: 154,
                 size: 2,
                 opcode: 44,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -981,6 +1066,9 @@ expression: diff.instruction_rows
                 address: 156,
                 size: 2,
                 opcode: 15,
+                branch_dest: Some(
+                    168,
+                ),
             },
         ),
         kind: None,
@@ -999,6 +1087,7 @@ expression: diff.instruction_rows
                 address: 158,
                 size: 2,
                 opcode: 46,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1012,6 +1101,7 @@ expression: diff.instruction_rows
                 address: 160,
                 size: 2,
                 opcode: 17,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1025,6 +1115,7 @@ expression: diff.instruction_rows
                 address: 162,
                 size: 2,
                 opcode: 46,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1038,6 +1129,7 @@ expression: diff.instruction_rows
                 address: 164,
                 size: 2,
                 opcode: 54,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1051,6 +1143,7 @@ expression: diff.instruction_rows
                 address: 166,
                 size: 2,
                 opcode: 67,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1064,6 +1157,7 @@ expression: diff.instruction_rows
                 address: 168,
                 size: 2,
                 opcode: 25,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1086,6 +1180,9 @@ expression: diff.instruction_rows
                 address: 170,
                 size: 2,
                 opcode: 15,
+                branch_dest: Some(
+                    200,
+                ),
             },
         ),
         kind: None,
@@ -1104,6 +1201,7 @@ expression: diff.instruction_rows
                 address: 172,
                 size: 2,
                 opcode: 35,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1117,6 +1215,7 @@ expression: diff.instruction_rows
                 address: 174,
                 size: 2,
                 opcode: 25,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1130,6 +1229,9 @@ expression: diff.instruction_rows
                 address: 176,
                 size: 2,
                 opcode: 15,
+                branch_dest: Some(
+                    200,
+                ),
             },
         ),
         kind: None,
@@ -1148,6 +1250,7 @@ expression: diff.instruction_rows
                 address: 178,
                 size: 2,
                 opcode: 34,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1161,6 +1264,7 @@ expression: diff.instruction_rows
                 address: 180,
                 size: 2,
                 opcode: 37,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1174,6 +1278,7 @@ expression: diff.instruction_rows
                 address: 182,
                 size: 2,
                 opcode: 42,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1187,6 +1292,7 @@ expression: diff.instruction_rows
                 address: 184,
                 size: 2,
                 opcode: 44,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1200,6 +1306,9 @@ expression: diff.instruction_rows
                 address: 186,
                 size: 2,
                 opcode: 15,
+                branch_dest: Some(
+                    200,
+                ),
             },
         ),
         kind: None,
@@ -1218,6 +1327,7 @@ expression: diff.instruction_rows
                 address: 188,
                 size: 2,
                 opcode: 32,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1231,6 +1341,7 @@ expression: diff.instruction_rows
                 address: 190,
                 size: 2,
                 opcode: 34,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1244,6 +1355,7 @@ expression: diff.instruction_rows
                 address: 192,
                 size: 2,
                 opcode: 46,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1257,6 +1369,7 @@ expression: diff.instruction_rows
                 address: 194,
                 size: 2,
                 opcode: 46,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1270,6 +1383,7 @@ expression: diff.instruction_rows
                 address: 196,
                 size: 4,
                 opcode: 19,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1283,6 +1397,7 @@ expression: diff.instruction_rows
                 address: 200,
                 size: 2,
                 opcode: 34,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1305,6 +1420,7 @@ expression: diff.instruction_rows
                 address: 202,
                 size: 2,
                 opcode: 35,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1318,6 +1434,7 @@ expression: diff.instruction_rows
                 address: 204,
                 size: 2,
                 opcode: 34,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1331,6 +1448,7 @@ expression: diff.instruction_rows
                 address: 206,
                 size: 2,
                 opcode: 4,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1344,6 +1462,7 @@ expression: diff.instruction_rows
                 address: 208,
                 size: 4,
                 opcode: 19,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1357,6 +1476,7 @@ expression: diff.instruction_rows
                 address: 212,
                 size: 2,
                 opcode: 7,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1379,6 +1499,7 @@ expression: diff.instruction_rows
                 address: 214,
                 size: 2,
                 opcode: 55,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1392,6 +1513,7 @@ expression: diff.instruction_rows
                 address: 216,
                 size: 4,
                 opcode: 65535,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1405,6 +1527,7 @@ expression: diff.instruction_rows
                 address: 220,
                 size: 4,
                 opcode: 65535,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1418,6 +1541,7 @@ expression: diff.instruction_rows
                 address: 224,
                 size: 4,
                 opcode: 65535,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1431,6 +1555,7 @@ expression: diff.instruction_rows
                 address: 228,
                 size: 4,
                 opcode: 65535,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1444,6 +1569,7 @@ expression: diff.instruction_rows
                 address: 232,
                 size: 4,
                 opcode: 65535,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1457,6 +1583,7 @@ expression: diff.instruction_rows
                 address: 236,
                 size: 4,
                 opcode: 65535,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -1470,6 +1597,7 @@ expression: diff.instruction_rows
                 address: 240,
                 size: 4,
                 opcode: 65535,
+                branch_dest: None,
             },
         ),
         kind: None,

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

@@ -9,6 +9,7 @@ expression: diff.instruction_rows
                 address: 0,
                 size: 4,
                 opcode: 12,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -22,6 +23,7 @@ expression: diff.instruction_rows
                 address: 4,
                 size: 4,
                 opcode: 44,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -35,6 +37,7 @@ expression: diff.instruction_rows
                 address: 8,
                 size: 4,
                 opcode: 44,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -48,6 +51,7 @@ expression: diff.instruction_rows
                 address: 12,
                 size: 4,
                 opcode: 44,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -61,6 +65,7 @@ expression: diff.instruction_rows
                 address: 16,
                 size: 4,
                 opcode: 44,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -74,6 +79,7 @@ expression: diff.instruction_rows
                 address: 20,
                 size: 4,
                 opcode: 2,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -87,6 +93,7 @@ expression: diff.instruction_rows
                 address: 24,
                 size: 4,
                 opcode: 113,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -100,6 +107,7 @@ expression: diff.instruction_rows
                 address: 28,
                 size: 4,
                 opcode: 26,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -113,6 +121,7 @@ expression: diff.instruction_rows
                 address: 32,
                 size: 4,
                 opcode: 20,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -126,6 +135,7 @@ expression: diff.instruction_rows
                 address: 36,
                 size: 4,
                 opcode: 97,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -139,6 +149,7 @@ expression: diff.instruction_rows
                 address: 40,
                 size: 4,
                 opcode: 2,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -152,6 +163,7 @@ expression: diff.instruction_rows
                 address: 44,
                 size: 4,
                 opcode: 12,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -165,6 +177,7 @@ expression: diff.instruction_rows
                 address: 48,
                 size: 4,
                 opcode: 20,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -178,6 +191,7 @@ expression: diff.instruction_rows
                 address: 52,
                 size: 4,
                 opcode: 26,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -191,6 +205,7 @@ expression: diff.instruction_rows
                 address: 56,
                 size: 4,
                 opcode: 2,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -204,6 +219,7 @@ expression: diff.instruction_rows
                 address: 60,
                 size: 4,
                 opcode: 12,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -217,6 +233,7 @@ expression: diff.instruction_rows
                 address: 64,
                 size: 4,
                 opcode: 26,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -230,6 +247,7 @@ expression: diff.instruction_rows
                 address: 68,
                 size: 4,
                 opcode: 97,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -243,6 +261,7 @@ expression: diff.instruction_rows
                 address: 72,
                 size: 4,
                 opcode: 2,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -256,6 +275,7 @@ expression: diff.instruction_rows
                 address: 76,
                 size: 4,
                 opcode: 97,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -269,6 +289,7 @@ expression: diff.instruction_rows
                 address: 80,
                 size: 4,
                 opcode: 2,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -289,6 +310,7 @@ expression: diff.instruction_rows
                 address: 84,
                 size: 4,
                 opcode: 97,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -302,6 +324,9 @@ expression: diff.instruction_rows
                 address: 88,
                 size: 4,
                 opcode: 56,
+                branch_dest: Some(
+                    80,
+                ),
             },
         ),
         kind: None,
@@ -320,6 +345,7 @@ expression: diff.instruction_rows
                 address: 92,
                 size: 4,
                 opcode: 113,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -333,6 +359,7 @@ expression: diff.instruction_rows
                 address: 96,
                 size: 4,
                 opcode: 2,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -346,6 +373,7 @@ expression: diff.instruction_rows
                 address: 100,
                 size: 4,
                 opcode: 20,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -359,6 +387,7 @@ expression: diff.instruction_rows
                 address: 104,
                 size: 4,
                 opcode: 2,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -372,6 +401,7 @@ expression: diff.instruction_rows
                 address: 108,
                 size: 4,
                 opcode: 12,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -385,6 +415,7 @@ expression: diff.instruction_rows
                 address: 112,
                 size: 4,
                 opcode: 2,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -398,6 +429,7 @@ expression: diff.instruction_rows
                 address: 116,
                 size: 4,
                 opcode: 16,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -411,6 +443,7 @@ expression: diff.instruction_rows
                 address: 120,
                 size: 4,
                 opcode: 20,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -424,6 +457,7 @@ expression: diff.instruction_rows
                 address: 124,
                 size: 4,
                 opcode: 12,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -437,6 +471,7 @@ expression: diff.instruction_rows
                 address: 128,
                 size: 4,
                 opcode: 2,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -459,6 +494,7 @@ expression: diff.instruction_rows
                 address: 132,
                 size: 4,
                 opcode: 12,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -472,6 +508,7 @@ expression: diff.instruction_rows
                 address: 136,
                 size: 4,
                 opcode: 2,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -485,6 +522,7 @@ expression: diff.instruction_rows
                 address: 140,
                 size: 4,
                 opcode: 113,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -498,6 +536,9 @@ expression: diff.instruction_rows
                 address: 144,
                 size: 4,
                 opcode: 55,
+                branch_dest: Some(
+                    128,
+                ),
             },
         ),
         kind: None,
@@ -516,6 +557,7 @@ expression: diff.instruction_rows
                 address: 148,
                 size: 4,
                 opcode: 90,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -529,6 +571,9 @@ expression: diff.instruction_rows
                 address: 152,
                 size: 4,
                 opcode: 3,
+                branch_dest: Some(
+                    128,
+                ),
             },
         ),
         kind: None,
@@ -547,6 +592,7 @@ expression: diff.instruction_rows
                 address: 156,
                 size: 4,
                 opcode: 113,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -560,6 +606,7 @@ expression: diff.instruction_rows
                 address: 160,
                 size: 4,
                 opcode: 2,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -573,6 +620,7 @@ expression: diff.instruction_rows
                 address: 164,
                 size: 4,
                 opcode: 60,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -586,6 +634,7 @@ expression: diff.instruction_rows
                 address: 168,
                 size: 4,
                 opcode: 77,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -599,6 +648,7 @@ expression: diff.instruction_rows
                 address: 172,
                 size: 4,
                 opcode: 113,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -612,6 +662,9 @@ expression: diff.instruction_rows
                 address: 176,
                 size: 4,
                 opcode: 54,
+                branch_dest: Some(
+                    128,
+                ),
             },
         ),
         kind: None,
@@ -630,6 +683,7 @@ expression: diff.instruction_rows
                 address: 180,
                 size: 4,
                 opcode: 113,
+                branch_dest: None,
             },
         ),
         kind: None,

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

@@ -9,6 +9,7 @@ expression: diff.instruction_rows
                 address: 0,
                 size: 4,
                 opcode: 60,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -22,6 +23,7 @@ expression: diff.instruction_rows
                 address: 4,
                 size: 4,
                 opcode: 38,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -35,6 +37,9 @@ expression: diff.instruction_rows
                 address: 8,
                 size: 4,
                 opcode: 43,
+                branch_dest: Some(
+                    20,
+                ),
             },
         ),
         kind: None,
@@ -53,6 +58,7 @@ expression: diff.instruction_rows
                 address: 12,
                 size: 4,
                 opcode: 41,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -66,6 +72,9 @@ expression: diff.instruction_rows
                 address: 16,
                 size: 4,
                 opcode: 45,
+                branch_dest: Some(
+                    32,
+                ),
             },
         ),
         kind: None,
@@ -84,6 +93,7 @@ expression: diff.instruction_rows
                 address: 20,
                 size: 4,
                 opcode: 42,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -104,6 +114,7 @@ expression: diff.instruction_rows
                 address: 24,
                 size: 4,
                 opcode: 41,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -117,6 +128,7 @@ expression: diff.instruction_rows
                 address: 28,
                 size: 4,
                 opcode: 94,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -130,6 +142,7 @@ expression: diff.instruction_rows
                 address: 32,
                 size: 4,
                 opcode: 60,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -150,6 +163,7 @@ expression: diff.instruction_rows
                 address: 36,
                 size: 4,
                 opcode: 166,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -163,6 +177,7 @@ expression: diff.instruction_rows
                 address: 40,
                 size: 4,
                 opcode: 38,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -176,6 +191,9 @@ expression: diff.instruction_rows
                 address: 44,
                 size: 4,
                 opcode: 43,
+                branch_dest: Some(
+                    56,
+                ),
             },
         ),
         kind: None,
@@ -194,6 +212,7 @@ expression: diff.instruction_rows
                 address: 48,
                 size: 4,
                 opcode: 41,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -207,6 +226,9 @@ expression: diff.instruction_rows
                 address: 52,
                 size: 4,
                 opcode: 45,
+                branch_dest: Some(
+                    68,
+                ),
             },
         ),
         kind: None,
@@ -225,6 +247,7 @@ expression: diff.instruction_rows
                 address: 56,
                 size: 4,
                 opcode: 42,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -245,6 +268,7 @@ expression: diff.instruction_rows
                 address: 60,
                 size: 4,
                 opcode: 41,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -258,6 +282,7 @@ expression: diff.instruction_rows
                 address: 64,
                 size: 4,
                 opcode: 94,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -271,6 +296,7 @@ expression: diff.instruction_rows
                 address: 68,
                 size: 4,
                 opcode: 60,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -291,6 +317,7 @@ expression: diff.instruction_rows
                 address: 72,
                 size: 4,
                 opcode: 41,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -304,6 +331,7 @@ expression: diff.instruction_rows
                 address: 76,
                 size: 4,
                 opcode: 38,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -317,6 +345,7 @@ expression: diff.instruction_rows
                 address: 80,
                 size: 4,
                 opcode: 166,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -330,6 +359,9 @@ expression: diff.instruction_rows
                 address: 84,
                 size: 4,
                 opcode: 43,
+                branch_dest: Some(
+                    96,
+                ),
             },
         ),
         kind: None,
@@ -348,6 +380,7 @@ expression: diff.instruction_rows
                 address: 88,
                 size: 4,
                 opcode: 41,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -361,6 +394,9 @@ expression: diff.instruction_rows
                 address: 92,
                 size: 4,
                 opcode: 45,
+                branch_dest: Some(
+                    108,
+                ),
             },
         ),
         kind: None,
@@ -379,6 +415,7 @@ expression: diff.instruction_rows
                 address: 96,
                 size: 4,
                 opcode: 42,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -399,6 +436,7 @@ expression: diff.instruction_rows
                 address: 100,
                 size: 4,
                 opcode: 41,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -412,6 +450,7 @@ expression: diff.instruction_rows
                 address: 104,
                 size: 4,
                 opcode: 94,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -425,6 +464,7 @@ expression: diff.instruction_rows
                 address: 108,
                 size: 4,
                 opcode: 60,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -445,6 +485,7 @@ expression: diff.instruction_rows
                 address: 112,
                 size: 4,
                 opcode: 41,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -458,6 +499,7 @@ expression: diff.instruction_rows
                 address: 116,
                 size: 4,
                 opcode: 38,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -471,6 +513,7 @@ expression: diff.instruction_rows
                 address: 120,
                 size: 4,
                 opcode: 166,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -484,6 +527,9 @@ expression: diff.instruction_rows
                 address: 124,
                 size: 4,
                 opcode: 43,
+                branch_dest: Some(
+                    136,
+                ),
             },
         ),
         kind: None,
@@ -502,6 +548,7 @@ expression: diff.instruction_rows
                 address: 128,
                 size: 4,
                 opcode: 41,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -515,6 +562,9 @@ expression: diff.instruction_rows
                 address: 132,
                 size: 4,
                 opcode: 45,
+                branch_dest: Some(
+                    148,
+                ),
             },
         ),
         kind: None,
@@ -533,6 +583,7 @@ expression: diff.instruction_rows
                 address: 136,
                 size: 4,
                 opcode: 42,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -553,6 +604,7 @@ expression: diff.instruction_rows
                 address: 140,
                 size: 4,
                 opcode: 41,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -566,6 +618,7 @@ expression: diff.instruction_rows
                 address: 144,
                 size: 4,
                 opcode: 94,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -579,6 +632,7 @@ expression: diff.instruction_rows
                 address: 148,
                 size: 4,
                 opcode: 41,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -599,6 +653,7 @@ expression: diff.instruction_rows
                 address: 152,
                 size: 4,
                 opcode: 41,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -612,6 +667,7 @@ expression: diff.instruction_rows
                 address: 156,
                 size: 4,
                 opcode: 166,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -625,6 +681,7 @@ expression: diff.instruction_rows
                 address: 160,
                 size: 4,
                 opcode: 42,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -638,6 +695,7 @@ expression: diff.instruction_rows
                 address: 164,
                 size: 4,
                 opcode: 41,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -651,6 +709,7 @@ expression: diff.instruction_rows
                 address: 168,
                 size: 4,
                 opcode: 166,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -664,6 +723,7 @@ expression: diff.instruction_rows
                 address: 172,
                 size: 4,
                 opcode: 41,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -677,6 +737,7 @@ expression: diff.instruction_rows
                 address: 176,
                 size: 4,
                 opcode: 162,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -690,6 +751,7 @@ expression: diff.instruction_rows
                 address: 180,
                 size: 4,
                 opcode: 94,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -703,6 +765,7 @@ expression: diff.instruction_rows
                 address: 184,
                 size: 4,
                 opcode: 66,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -716,6 +779,9 @@ expression: diff.instruction_rows
                 address: 188,
                 size: 4,
                 opcode: 43,
+                branch_dest: Some(
+                    196,
+                ),
             },
         ),
         kind: None,
@@ -734,6 +800,7 @@ expression: diff.instruction_rows
                 address: 192,
                 size: 4,
                 opcode: 166,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -747,6 +814,7 @@ expression: diff.instruction_rows
                 address: 196,
                 size: 4,
                 opcode: 163,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -767,6 +835,7 @@ expression: diff.instruction_rows
                 address: 200,
                 size: 4,
                 opcode: 94,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -780,6 +849,7 @@ expression: diff.instruction_rows
                 address: 204,
                 size: 4,
                 opcode: 66,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -793,6 +863,9 @@ expression: diff.instruction_rows
                 address: 208,
                 size: 4,
                 opcode: 43,
+                branch_dest: Some(
+                    216,
+                ),
             },
         ),
         kind: None,
@@ -811,6 +884,7 @@ expression: diff.instruction_rows
                 address: 212,
                 size: 4,
                 opcode: 166,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -824,6 +898,7 @@ expression: diff.instruction_rows
                 address: 216,
                 size: 4,
                 opcode: 163,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -844,6 +919,7 @@ expression: diff.instruction_rows
                 address: 220,
                 size: 4,
                 opcode: 94,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -857,6 +933,7 @@ expression: diff.instruction_rows
                 address: 224,
                 size: 4,
                 opcode: 66,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -870,6 +947,9 @@ expression: diff.instruction_rows
                 address: 228,
                 size: 4,
                 opcode: 43,
+                branch_dest: Some(
+                    236,
+                ),
             },
         ),
         kind: None,
@@ -888,6 +968,7 @@ expression: diff.instruction_rows
                 address: 232,
                 size: 4,
                 opcode: 166,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -901,6 +982,7 @@ expression: diff.instruction_rows
                 address: 236,
                 size: 4,
                 opcode: 163,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -921,6 +1003,7 @@ expression: diff.instruction_rows
                 address: 240,
                 size: 4,
                 opcode: 94,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -934,6 +1017,7 @@ expression: diff.instruction_rows
                 address: 244,
                 size: 4,
                 opcode: 66,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -947,6 +1031,9 @@ expression: diff.instruction_rows
                 address: 248,
                 size: 4,
                 opcode: 43,
+                branch_dest: Some(
+                    256,
+                ),
             },
         ),
         kind: None,
@@ -965,6 +1052,7 @@ expression: diff.instruction_rows
                 address: 252,
                 size: 4,
                 opcode: 166,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -978,6 +1066,7 @@ expression: diff.instruction_rows
                 address: 256,
                 size: 4,
                 opcode: 41,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -998,6 +1087,7 @@ expression: diff.instruction_rows
                 address: 260,
                 size: 4,
                 opcode: 47,
+                branch_dest: None,
             },
         ),
         kind: None,

objdiff-core/tests/snapshots/arch_x86__read_x86-2.snap

@@ -9,6 +9,7 @@ expression: diff.instruction_rows
                 address: 0,
                 size: 1,
                 opcode: 640,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -22,6 +23,7 @@ expression: diff.instruction_rows
                 address: 1,
                 size: 2,
                 opcode: 414,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -35,6 +37,7 @@ expression: diff.instruction_rows
                 address: 3,
                 size: 5,
                 opcode: 640,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -48,6 +51,7 @@ expression: diff.instruction_rows
                 address: 8,
                 size: 5,
                 opcode: 59,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -61,6 +65,7 @@ expression: diff.instruction_rows
                 address: 13,
                 size: 3,
                 opcode: 7,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -74,6 +79,7 @@ expression: diff.instruction_rows
                 address: 16,
                 size: 1,
                 opcode: 590,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -87,6 +93,7 @@ expression: diff.instruction_rows
                 address: 17,
                 size: 1,
                 opcode: 662,
+                branch_dest: None,
             },
         ),
         kind: None,

objdiff-core/tests/snapshots/arch_x86__read_x86_64-2.snap

@@ -9,6 +9,7 @@ expression: diff.instruction_rows
                 address: 0,
                 size: 5,
                 opcode: 414,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -22,6 +23,7 @@ expression: diff.instruction_rows
                 address: 5,
                 size: 5,
                 opcode: 414,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -35,6 +37,7 @@ expression: diff.instruction_rows
                 address: 10,
                 size: 1,
                 opcode: 640,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -48,6 +51,7 @@ expression: diff.instruction_rows
                 address: 11,
                 size: 4,
                 opcode: 740,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -61,6 +65,7 @@ expression: diff.instruction_rows
                 address: 15,
                 size: 5,
                 opcode: 414,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -74,6 +79,7 @@ expression: diff.instruction_rows
                 address: 20,
                 size: 5,
                 opcode: 414,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -87,6 +93,7 @@ expression: diff.instruction_rows
                 address: 25,
                 size: 4,
                 opcode: 448,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -100,6 +107,7 @@ expression: diff.instruction_rows
                 address: 29,
                 size: 4,
                 opcode: 460,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -113,6 +121,7 @@ expression: diff.instruction_rows
                 address: 33,
                 size: 5,
                 opcode: 414,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -126,6 +135,7 @@ expression: diff.instruction_rows
                 address: 38,
                 size: 5,
                 opcode: 414,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -139,6 +149,7 @@ expression: diff.instruction_rows
                 address: 43,
                 size: 5,
                 opcode: 448,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -152,6 +163,7 @@ expression: diff.instruction_rows
                 address: 48,
                 size: 5,
                 opcode: 460,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -165,6 +177,7 @@ expression: diff.instruction_rows
                 address: 53,
                 size: 4,
                 opcode: 11,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -178,6 +191,7 @@ expression: diff.instruction_rows
                 address: 57,
                 size: 5,
                 opcode: 414,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -191,6 +205,7 @@ expression: diff.instruction_rows
                 address: 62,
                 size: 5,
                 opcode: 414,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -204,6 +219,7 @@ expression: diff.instruction_rows
                 address: 67,
                 size: 5,
                 opcode: 448,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -217,6 +233,7 @@ expression: diff.instruction_rows
                 address: 72,
                 size: 5,
                 opcode: 460,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -230,6 +247,7 @@ expression: diff.instruction_rows
                 address: 77,
                 size: 4,
                 opcode: 11,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -243,6 +261,7 @@ expression: diff.instruction_rows
                 address: 81,
                 size: 4,
                 opcode: 7,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -256,6 +275,7 @@ expression: diff.instruction_rows
                 address: 85,
                 size: 1,
                 opcode: 590,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -269,6 +289,7 @@ expression: diff.instruction_rows
                 address: 86,
                 size: 1,
                 opcode: 662,
+                branch_dest: None,
             },
         ),
         kind: None,

objdiff-core/tests/snapshots/arch_x86__read_x86_combine_sections.snap

@@ -42,11 +42,11 @@ expression: obj.sections
         name: ".rdata",
         address: 0,
         size: 0,
-        kind: Data,
+        kind: Unknown,
         data: SectionData(
             0,
         ),
-        flags: FlagSet(Hidden),
+        flags: FlagSet(),
         align: Some(
             4,
         ),
@@ -59,11 +59,11 @@ expression: obj.sections
         name: ".rdata",
         address: 0,
         size: 0,
-        kind: Data,
+        kind: Unknown,
         data: SectionData(
             0,
         ),
-        flags: FlagSet(Hidden),
+        flags: FlagSet(),
         align: Some(
             4,
         ),
@@ -76,11 +76,11 @@ expression: obj.sections
         name: ".text$mn",
         address: 0,
         size: 0,
-        kind: Code,
+        kind: Unknown,
         data: SectionData(
             0,
         ),
-        flags: FlagSet(Hidden),
+        flags: FlagSet(),
         align: Some(
             16,
         ),
@@ -425,11 +425,11 @@ expression: obj.sections
         name: ".rdata$r",
         address: 0,
         size: 0,
-        kind: Data,
+        kind: Unknown,
         data: SectionData(
             0,
         ),
-        flags: FlagSet(Hidden),
+        flags: FlagSet(),
         align: Some(
             4,
         ),
@@ -442,11 +442,11 @@ expression: obj.sections
         name: ".rdata$r",
         address: 0,
         size: 0,
-        kind: Data,
+        kind: Unknown,
         data: SectionData(
             0,
         ),
-        flags: FlagSet(Hidden),
+        flags: FlagSet(),
         align: Some(
             4,
         ),
@@ -459,11 +459,11 @@ expression: obj.sections
         name: ".data$rs",
         address: 0,
         size: 0,
-        kind: Data,
+        kind: Unknown,
         data: SectionData(
             0,
         ),
-        flags: FlagSet(Hidden),
+        flags: FlagSet(),
         align: Some(
             4,
         ),
@@ -476,11 +476,11 @@ expression: obj.sections
         name: ".rdata$r",
         address: 0,
         size: 0,
-        kind: Data,
+        kind: Unknown,
         data: SectionData(
             0,
         ),
-        flags: FlagSet(Hidden),
+        flags: FlagSet(),
         align: Some(
             4,
         ),
@@ -493,11 +493,11 @@ expression: obj.sections
         name: ".rdata$r",
         address: 0,
         size: 0,
-        kind: Data,
+        kind: Unknown,
         data: SectionData(
             0,
         ),
-        flags: FlagSet(Hidden),
+        flags: FlagSet(),
         align: Some(
             4,
         ),
@@ -510,11 +510,11 @@ expression: obj.sections
         name: ".rdata$r",
         address: 0,
         size: 0,
-        kind: Data,
+        kind: Unknown,
         data: SectionData(
             0,
         ),
-        flags: FlagSet(Hidden),
+        flags: FlagSet(),
         align: Some(
             4,
         ),
@@ -527,11 +527,11 @@ expression: obj.sections
         name: ".rdata$r",
         address: 0,
         size: 0,
-        kind: Data,
+        kind: Unknown,
         data: SectionData(
             0,
         ),
-        flags: FlagSet(Hidden),
+        flags: FlagSet(),
         align: Some(
             4,
         ),
@@ -544,11 +544,11 @@ expression: obj.sections
         name: ".data$rs",
         address: 0,
         size: 0,
-        kind: Data,
+        kind: Unknown,
         data: SectionData(
             0,
         ),
-        flags: FlagSet(Hidden),
+        flags: FlagSet(),
         align: Some(
             4,
         ),
@@ -561,11 +561,11 @@ expression: obj.sections
         name: ".rdata$r",
         address: 0,
         size: 0,
-        kind: Data,
+        kind: Unknown,
         data: SectionData(
             0,
         ),
-        flags: FlagSet(Hidden),
+        flags: FlagSet(),
         align: Some(
             4,
         ),
@@ -578,11 +578,11 @@ expression: obj.sections
         name: ".rdata$r",
         address: 0,
         size: 0,
-        kind: Data,
+        kind: Unknown,
         data: SectionData(
             0,
         ),
-        flags: FlagSet(Hidden),
+        flags: FlagSet(),
         align: Some(
             4,
         ),
@@ -595,11 +595,11 @@ expression: obj.sections
         name: ".rdata$r",
         address: 0,
         size: 0,
-        kind: Data,
+        kind: Unknown,
         data: SectionData(
             0,
         ),
-        flags: FlagSet(Hidden),
+        flags: FlagSet(),
         align: Some(
             4,
         ),
@@ -612,11 +612,11 @@ expression: obj.sections
         name: ".rdata$r",
         address: 0,
         size: 0,
-        kind: Data,
+        kind: Unknown,
         data: SectionData(
             0,
         ),
-        flags: FlagSet(Hidden),
+        flags: FlagSet(),
         align: Some(
             4,
         ),
@@ -629,11 +629,11 @@ expression: obj.sections
         name: ".text$mn",
         address: 0,
         size: 0,
-        kind: Code,
+        kind: Unknown,
         data: SectionData(
             0,
         ),
-        flags: FlagSet(Hidden),
+        flags: FlagSet(),
         align: Some(
             1,
         ),
@@ -646,11 +646,11 @@ expression: obj.sections
         name: ".rdata$r",
         address: 0,
         size: 0,
-        kind: Data,
+        kind: Unknown,
         data: SectionData(
             0,
         ),
-        flags: FlagSet(Hidden),
+        flags: FlagSet(),
         align: Some(
             4,
         ),
@@ -663,11 +663,11 @@ expression: obj.sections
         name: ".text$mn",
         address: 0,
         size: 0,
-        kind: Code,
+        kind: Unknown,
         data: SectionData(
             0,
         ),
-        flags: FlagSet(Hidden),
+        flags: FlagSet(),
         align: Some(
             16,
         ),
@@ -680,11 +680,11 @@ expression: obj.sections
         name: ".text$mn",
         address: 0,
         size: 0,
-        kind: Code,
+        kind: Unknown,
         data: SectionData(
             0,
         ),
-        flags: FlagSet(Hidden),
+        flags: FlagSet(),
         align: Some(
             16,
         ),
@@ -697,11 +697,11 @@ expression: obj.sections
         name: ".text$mn",
         address: 0,
         size: 0,
-        kind: Code,
+        kind: Unknown,
         data: SectionData(
             0,
         ),
-        flags: FlagSet(Hidden),
+        flags: FlagSet(),
         align: Some(
             16,
         ),
@@ -714,11 +714,11 @@ expression: obj.sections
         name: ".text$mn",
         address: 0,
         size: 0,
-        kind: Code,
+        kind: Unknown,
         data: SectionData(
             0,
         ),
-        flags: FlagSet(Hidden),
+        flags: FlagSet(),
         align: Some(
             16,
         ),
@@ -731,11 +731,11 @@ expression: obj.sections
         name: ".text$mn",
         address: 0,
         size: 0,
-        kind: Code,
+        kind: Unknown,
         data: SectionData(
             0,
         ),
-        flags: FlagSet(Hidden),
+        flags: FlagSet(),
         align: Some(
             16,
         ),
@@ -902,11 +902,11 @@ expression: obj.sections
         name: ".text$yd",
         address: 0,
         size: 0,
-        kind: Code,
+        kind: Unknown,
         data: SectionData(
             0,
         ),
-        flags: FlagSet(Hidden),
+        flags: FlagSet(),
         align: Some(
             16,
         ),
@@ -919,11 +919,11 @@ expression: obj.sections
         name: ".rdata",
         address: 0,
         size: 0,
-        kind: Data,
+        kind: Unknown,
         data: SectionData(
             0,
         ),
-        flags: FlagSet(Hidden),
+        flags: FlagSet(),
         align: Some(
             4,
         ),
@@ -936,11 +936,11 @@ expression: obj.sections
         name: ".rdata",
         address: 0,
         size: 0,
-        kind: Data,
+        kind: Unknown,
         data: SectionData(
             0,
         ),
-        flags: FlagSet(Hidden),
+        flags: FlagSet(),
         align: Some(
             4,
         ),
@@ -953,11 +953,11 @@ expression: obj.sections
         name: ".data",
         address: 0,
         size: 0,
-        kind: Data,
+        kind: Unknown,
         data: SectionData(
             0,
         ),
-        flags: FlagSet(Hidden),
+        flags: FlagSet(),
         align: Some(
             4,
         ),
@@ -970,11 +970,11 @@ expression: obj.sections
         name: ".rdata$r",
         address: 0,
         size: 0,
-        kind: Data,
+        kind: Unknown,
         data: SectionData(
             0,
         ),
-        flags: FlagSet(Hidden),
+        flags: FlagSet(),
         align: Some(
             4,
         ),
@@ -987,11 +987,11 @@ expression: obj.sections
         name: ".rdata$r",
         address: 0,
         size: 0,
-        kind: Data,
+        kind: Unknown,
         data: SectionData(
             0,
         ),
-        flags: FlagSet(Hidden),
+        flags: FlagSet(),
         align: Some(
             4,
         ),

objdiff-core/tests/snapshots/arch_x86__read_x86_jumptable-2.snap

@@ -9,6 +9,7 @@ expression: diff.instruction_rows
                 address: 0,
                 size: 4,
                 opcode: 414,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -22,6 +23,7 @@ expression: diff.instruction_rows
                 address: 4,
                 size: 1,
                 opcode: 137,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -35,6 +37,7 @@ expression: diff.instruction_rows
                 address: 5,
                 size: 3,
                 opcode: 93,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -48,6 +51,9 @@ expression: diff.instruction_rows
                 address: 8,
                 size: 2,
                 opcode: 297,
+                branch_dest: Some(
+                    58,
+                ),
             },
         ),
         kind: None,
@@ -66,6 +72,9 @@ expression: diff.instruction_rows
                 address: 10,
                 size: 7,
                 opcode: 308,
+                branch_dest: Some(
+                    60,
+                ),
             },
         ),
         kind: None,
@@ -84,6 +93,7 @@ expression: diff.instruction_rows
                 address: 17,
                 size: 5,
                 opcode: 414,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -104,6 +114,7 @@ expression: diff.instruction_rows
                 address: 22,
                 size: 1,
                 opcode: 662,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -117,6 +128,7 @@ expression: diff.instruction_rows
                 address: 23,
                 size: 5,
                 opcode: 414,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -137,6 +149,7 @@ expression: diff.instruction_rows
                 address: 28,
                 size: 1,
                 opcode: 662,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -150,6 +163,7 @@ expression: diff.instruction_rows
                 address: 29,
                 size: 5,
                 opcode: 414,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -170,6 +184,7 @@ expression: diff.instruction_rows
                 address: 34,
                 size: 1,
                 opcode: 662,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -183,6 +198,7 @@ expression: diff.instruction_rows
                 address: 35,
                 size: 5,
                 opcode: 414,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -203,6 +219,7 @@ expression: diff.instruction_rows
                 address: 40,
                 size: 1,
                 opcode: 662,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -216,6 +233,7 @@ expression: diff.instruction_rows
                 address: 41,
                 size: 5,
                 opcode: 414,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -236,6 +254,7 @@ expression: diff.instruction_rows
                 address: 46,
                 size: 1,
                 opcode: 662,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -249,6 +268,7 @@ expression: diff.instruction_rows
                 address: 47,
                 size: 5,
                 opcode: 414,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -269,6 +289,7 @@ expression: diff.instruction_rows
                 address: 52,
                 size: 1,
                 opcode: 662,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -282,6 +303,7 @@ expression: diff.instruction_rows
                 address: 53,
                 size: 5,
                 opcode: 414,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -302,6 +324,7 @@ expression: diff.instruction_rows
                 address: 58,
                 size: 1,
                 opcode: 662,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -322,6 +345,7 @@ expression: diff.instruction_rows
                 address: 59,
                 size: 1,
                 opcode: 465,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -335,6 +359,9 @@ expression: diff.instruction_rows
                 address: 60,
                 size: 4,
                 opcode: 65534,
+                branch_dest: Some(
+                    17,
+                ),
             },
         ),
         kind: None,
@@ -360,6 +387,9 @@ expression: diff.instruction_rows
                 address: 64,
                 size: 4,
                 opcode: 65534,
+                branch_dest: Some(
+                    23,
+                ),
             },
         ),
         kind: None,
@@ -378,6 +408,9 @@ expression: diff.instruction_rows
                 address: 68,
                 size: 4,
                 opcode: 65534,
+                branch_dest: Some(
+                    29,
+                ),
             },
         ),
         kind: None,
@@ -396,6 +429,9 @@ expression: diff.instruction_rows
                 address: 72,
                 size: 4,
                 opcode: 65534,
+                branch_dest: Some(
+                    35,
+                ),
             },
         ),
         kind: None,
@@ -414,6 +450,9 @@ expression: diff.instruction_rows
                 address: 76,
                 size: 4,
                 opcode: 65534,
+                branch_dest: Some(
+                    41,
+                ),
             },
         ),
         kind: None,
@@ -432,6 +471,9 @@ expression: diff.instruction_rows
                 address: 80,
                 size: 4,
                 opcode: 65534,
+                branch_dest: Some(
+                    47,
+                ),
             },
         ),
         kind: None,
@@ -450,6 +492,9 @@ expression: diff.instruction_rows
                 address: 84,
                 size: 4,
                 opcode: 65534,
+                branch_dest: Some(
+                    53,
+                ),
             },
         ),
         kind: None,
@@ -468,6 +513,7 @@ expression: diff.instruction_rows
                 address: 88,
                 size: 1,
                 opcode: 465,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -481,6 +527,7 @@ expression: diff.instruction_rows
                 address: 89,
                 size: 1,
                 opcode: 465,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -494,6 +541,7 @@ expression: diff.instruction_rows
                 address: 90,
                 size: 1,
                 opcode: 465,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -507,6 +555,7 @@ expression: diff.instruction_rows
                 address: 91,
                 size: 1,
                 opcode: 465,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -520,6 +569,7 @@ expression: diff.instruction_rows
                 address: 92,
                 size: 1,
                 opcode: 465,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -533,6 +583,7 @@ expression: diff.instruction_rows
                 address: 93,
                 size: 1,
                 opcode: 465,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -546,6 +597,7 @@ expression: diff.instruction_rows
                 address: 94,
                 size: 1,
                 opcode: 465,
+                branch_dest: None,
             },
         ),
         kind: None,
@@ -559,6 +611,7 @@ expression: diff.instruction_rows
                 address: 95,
                 size: 1,
                 opcode: 465,
+                branch_dest: None,
             },
         ),
         kind: None,

objdiff-core/tests/snapshots/arch_x86__read_x86_jumptable-3.snap

@@ -6,7 +6,7 @@ expression: output
 [(Address(4), Normal, 5), (Spacing(4), Normal, 0), (Opcode("dec", 137), Normal, 10), (Argument(Opaque("eax")), Normal, 0), (Eol, Normal, 0)]
 [(Address(5), Normal, 5), (Spacing(4), Normal, 0), (Opcode("cmp", 93), Normal, 10), (Argument(Opaque("eax")), Normal, 0), (Basic(","), Normal, 0), (Spacing(1), Normal, 0), (Argument(Unsigned(6)), Normal, 0), (Eol, Normal, 0)]
 [(Address(8), Normal, 5), (Spacing(4), Normal, 0), (Opcode("ja", 297), Normal, 10), (Argument(Opaque("short")), Normal, 0), (Spacing(1), Normal, 0), (BranchDest(58), Normal, 0), (Basic(" ~>"), Rotating(0), 0), (Eol, Normal, 0)]
-[(Address(10), Normal, 5), (Spacing(4), Normal, 0), (Opcode("jmp", 308), Normal, 10), (Argument(Opaque("dword")), Normal, 0), (Spacing(1), Normal, 0), (Argument(Opaque("ptr")), Normal, 0), (Spacing(1), Normal, 0), (Basic("["), Normal, 0), (Argument(Opaque("eax")), Normal, 0), (Argument(Opaque("*")), Normal, 0), (Argument(Signed(4)), Normal, 0), (Argument(Opaque("+")), Normal, 0), (Symbol(Symbol { name: "$L282", demangled_name: None, address: 60, size: 0, kind: Unknown, section: Some(1), flags: FlagSet(Local), align: None, virtual_address: None }), Bright, 0), (Basic("]"), Normal, 0), (Basic(" ~>"), Rotating(1), 0), (Eol, Normal, 0)]
+[(Address(10), Normal, 5), (Spacing(4), Normal, 0), (Opcode("jmp", 308), Normal, 10), (Argument(Opaque("dword")), Normal, 0), (Spacing(1), Normal, 0), (Argument(Opaque("ptr")), Normal, 0), (Spacing(1), Normal, 0), (Basic("["), Normal, 0), (Argument(Opaque("eax")), Normal, 0), (Argument(Opaque("*")), Normal, 0), (Argument(Signed(4)), Normal, 0), (Argument(Opaque("+")), Normal, 0), (BranchDest(60), Normal, 0), (Basic("]"), Normal, 0), (Basic(" ~>"), Rotating(1), 0), (Eol, Normal, 0)]
 [(Address(17), Normal, 5), (Basic(" ~> "), Rotating(2), 0), (Opcode("mov", 414), Normal, 10), (Argument(Opaque("eax")), Normal, 0), (Basic(","), Normal, 0), (Spacing(1), Normal, 0), (Argument(Unsigned(8)), Normal, 0), (Eol, Normal, 0)]
 [(Address(22), Normal, 5), (Spacing(4), Normal, 0), (Opcode("ret", 662), Normal, 10), (Eol, Normal, 0)]
 [(Address(23), Normal, 5), (Basic(" ~> "), Rotating(3), 0), (Opcode("mov", 414), Normal, 10), (Argument(Opaque("eax")), Normal, 0), (Basic(","), Normal, 0), (Spacing(1), Normal, 0), (Argument(Unsigned(7)), Normal, 0), (Eol, Normal, 0)]
@@ -22,13 +22,13 @@ expression: output
 [(Address(53), Normal, 5), (Basic(" ~> "), Rotating(8), 0), (Opcode("mov", 414), Normal, 10), (Argument(Opaque("eax")), Normal, 0), (Basic(","), Normal, 0), (Spacing(1), Normal, 0), (Argument(Unsigned(2)), Normal, 0), (Eol, Normal, 0)]
 [(Address(58), Normal, 5), (Basic(" ~> "), Rotating(0), 0), (Opcode("ret", 662), Normal, 10), (Eol, Normal, 0)]
 [(Address(59), Normal, 5), (Spacing(4), Normal, 0), (Opcode("nop", 465), Normal, 10), (Eol, Normal, 0)]
-[(Address(60), Normal, 5), (Basic(" ~> "), Rotating(1), 0), (Opcode(".dword", 65534), Normal, 10), (Symbol(Symbol { name: "$L272", demangled_name: None, address: 17, size: 0, kind: Unknown, section: Some(1), flags: FlagSet(Local), align: None, virtual_address: None }), Bright, 0), (Basic(" ~>"), Rotating(2), 0), (Eol, Normal, 0)]
-[(Address(64), Normal, 5), (Spacing(4), Normal, 0), (Opcode(".dword", 65534), Normal, 10), (Symbol(Symbol { name: "$L273", demangled_name: None, address: 23, size: 0, kind: Unknown, section: Some(1), flags: FlagSet(Local), align: None, virtual_address: None }), Bright, 0), (Basic(" ~>"), Rotating(3), 0), (Eol, Normal, 0)]
-[(Address(68), Normal, 5), (Spacing(4), Normal, 0), (Opcode(".dword", 65534), Normal, 10), (Symbol(Symbol { name: "$L274", demangled_name: None, address: 29, size: 0, kind: Unknown, section: Some(1), flags: FlagSet(Local), align: None, virtual_address: None }), Bright, 0), (Basic(" ~>"), Rotating(4), 0), (Eol, Normal, 0)]
-[(Address(72), Normal, 5), (Spacing(4), Normal, 0), (Opcode(".dword", 65534), Normal, 10), (Symbol(Symbol { name: "$L275", demangled_name: None, address: 35, size: 0, kind: Unknown, section: Some(1), flags: FlagSet(Local), align: None, virtual_address: None }), Bright, 0), (Basic(" ~>"), Rotating(5), 0), (Eol, Normal, 0)]
-[(Address(76), Normal, 5), (Spacing(4), Normal, 0), (Opcode(".dword", 65534), Normal, 10), (Symbol(Symbol { name: "$L276", demangled_name: None, address: 41, size: 0, kind: Unknown, section: Some(1), flags: FlagSet(Local), align: None, virtual_address: None }), Bright, 0), (Basic(" ~>"), Rotating(6), 0), (Eol, Normal, 0)]
-[(Address(80), Normal, 5), (Spacing(4), Normal, 0), (Opcode(".dword", 65534), Normal, 10), (Symbol(Symbol { name: "$L277", demangled_name: None, address: 47, size: 0, kind: Unknown, section: Some(1), flags: FlagSet(Local), align: None, virtual_address: None }), Bright, 0), (Basic(" ~>"), Rotating(7), 0), (Eol, Normal, 0)]
-[(Address(84), Normal, 5), (Spacing(4), Normal, 0), (Opcode(".dword", 65534), Normal, 10), (Symbol(Symbol { name: "$L278", demangled_name: None, address: 53, size: 0, kind: Unknown, section: Some(1), flags: FlagSet(Local), align: None, virtual_address: None }), Bright, 0), (Basic(" ~>"), Rotating(8), 0), (Eol, Normal, 0)]
+[(Address(60), Normal, 5), (Basic(" ~> "), Rotating(1), 0), (Opcode(".dword", 65534), Normal, 10), (BranchDest(17), Normal, 0), (Basic(" ~>"), Rotating(2), 0), (Eol, Normal, 0)]
+[(Address(64), Normal, 5), (Spacing(4), Normal, 0), (Opcode(".dword", 65534), Normal, 10), (BranchDest(23), Normal, 0), (Basic(" ~>"), Rotating(3), 0), (Eol, Normal, 0)]
+[(Address(68), Normal, 5), (Spacing(4), Normal, 0), (Opcode(".dword", 65534), Normal, 10), (BranchDest(29), Normal, 0), (Basic(" ~>"), Rotating(4), 0), (Eol, Normal, 0)]
+[(Address(72), Normal, 5), (Spacing(4), Normal, 0), (Opcode(".dword", 65534), Normal, 10), (BranchDest(35), Normal, 0), (Basic(" ~>"), Rotating(5), 0), (Eol, Normal, 0)]
+[(Address(76), Normal, 5), (Spacing(4), Normal, 0), (Opcode(".dword", 65534), Normal, 10), (BranchDest(41), Normal, 0), (Basic(" ~>"), Rotating(6), 0), (Eol, Normal, 0)]
+[(Address(80), Normal, 5), (Spacing(4), Normal, 0), (Opcode(".dword", 65534), Normal, 10), (BranchDest(47), Normal, 0), (Basic(" ~>"), Rotating(7), 0), (Eol, Normal, 0)]
+[(Address(84), Normal, 5), (Spacing(4), Normal, 0), (Opcode(".dword", 65534), Normal, 10), (BranchDest(53), Normal, 0), (Basic(" ~>"), Rotating(8), 0), (Eol, Normal, 0)]
 [(Address(88), Normal, 5), (Spacing(4), Normal, 0), (Opcode("nop", 465), Normal, 10), (Eol, Normal, 0)]
 [(Address(89), Normal, 5), (Spacing(4), Normal, 0), (Opcode("nop", 465), Normal, 10), (Eol, Normal, 0)]
 [(Address(90), Normal, 5), (Spacing(4), Normal, 0), (Opcode("nop", 465), Normal, 10), (Eol, Normal, 0)]

objdiff-core/tests/snapshots/arch_x86__read_x86_local_labels.snap

@@ -0,0 +1,163 @@
+---
+source: objdiff-core/tests/arch_x86.rs
+expression: obj
+---
+Object {
+    arch: ArchX86 {
+        arch: X86,
+        endianness: Little,
+    },
+    endianness: Little,
+    symbols: [
+        Symbol {
+            name: "42b830_convertToUppercaseShiftJIS.obj",
+            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: "LAB_0042b850",
+            demangled_name: None,
+            address: 32,
+            size: 0,
+            kind: Object,
+            section: Some(
+                0,
+            ),
+            flags: FlagSet(Local),
+            align: None,
+            virtual_address: None,
+        },
+        Symbol {
+            name: "LAB_0042b883",
+            demangled_name: None,
+            address: 83,
+            size: 0,
+            kind: Object,
+            section: Some(
+                0,
+            ),
+            flags: FlagSet(Local),
+            align: None,
+            virtual_address: None,
+        },
+        Symbol {
+            name: "LAB_0042b87c",
+            demangled_name: None,
+            address: 76,
+            size: 0,
+            kind: Object,
+            section: Some(
+                0,
+            ),
+            flags: FlagSet(Local),
+            align: None,
+            virtual_address: None,
+        },
+        Symbol {
+            name: "LAB_0042b884",
+            demangled_name: None,
+            address: 84,
+            size: 0,
+            kind: Object,
+            section: Some(
+                0,
+            ),
+            flags: FlagSet(Local),
+            align: None,
+            virtual_address: None,
+        },
+        Symbol {
+            name: "LAB_0042b889",
+            demangled_name: None,
+            address: 89,
+            size: 0,
+            kind: Object,
+            section: Some(
+                0,
+            ),
+            flags: FlagSet(Local),
+            align: None,
+            virtual_address: None,
+        },
+        Symbol {
+            name: "LAB_0042b845",
+            demangled_name: None,
+            address: 21,
+            size: 0,
+            kind: Object,
+            section: Some(
+                0,
+            ),
+            flags: FlagSet(Local),
+            align: None,
+            virtual_address: None,
+        },
+        Symbol {
+            name: "LAB_0042b869",
+            demangled_name: None,
+            address: 57,
+            size: 0,
+            kind: Object,
+            section: Some(
+                0,
+            ),
+            flags: FlagSet(Local),
+            align: None,
+            virtual_address: None,
+        },
+        Symbol {
+            name: "ConvertToUppercaseShiftJIS",
+            demangled_name: None,
+            address: 0,
+            size: 92,
+            kind: Function,
+            section: Some(
+                0,
+            ),
+            flags: FlagSet(Global | SizeInferred),
+            align: None,
+            virtual_address: None,
+        },
+    ],
+    sections: [
+        Section {
+            id: ".text-0",
+            name: ".text",
+            address: 0,
+            size: 92,
+            kind: Code,
+            data: SectionData(
+                92,
+            ),
+            flags: FlagSet(),
+            align: Some(
+                16,
+            ),
+            relocations: [],
+            line_info: {},
+            virtual_address: None,
+        },
+    ],
+    split_meta: None,
+    path: None,
+    timestamp: None,
+}

objdiff-gui/Cargo.toml

@@ -46,7 +46,7 @@ rlwinmdec = "1.1"
 ron = "0.8"
 serde = { version = "1.0", features = ["derive"] }
 time = { version = "0.3", features = ["formatting", "local-offset"] }
-typed-path = "0.10"
+typed-path = "0.11"
 winit = { version = "0.30", features = ["wayland-csd-adwaita"] }
 tracing-subscriber = { version = "0.3", features = ["env-filter"] }
 

objdiff-gui/src/views/data_diff.rs

@@ -147,14 +147,20 @@ pub(crate) fn data_row_ui(
             cur_addr += diff.len;
         } else {
             for byte in &diff.data {
+                let mut byte_text = format!("{byte:02x} ");
                 let mut byte_color = base_color;
-                if let Some(reloc_diff) = reloc_diffs.iter().find(|reloc_diff| {
-                    reloc_diff.kind != DataDiffKind::None
-                        && reloc_diff.range.contains(&cur_addr_actual)
-                }) {
-                    byte_color = get_color_for_diff_kind(reloc_diff.kind, appearance);
+                if let Some(reloc_diff) = reloc_diffs
+                    .iter()
+                    .find(|reloc_diff| reloc_diff.range.contains(&cur_addr_actual))
+                {
+                    if *byte == 0 {
+                        // Display 00 data bytes with a relocation as ?? instead.
+                        byte_text = "?? ".to_string();
+                    }
+                    if reloc_diff.kind != DataDiffKind::None {
+                        byte_color = get_color_for_diff_kind(reloc_diff.kind, appearance);
+                    }
                 }
-                let byte_text = format!("{byte:02x} ");
                 write_text(byte_text.as_str(), byte_color, &mut job, appearance.code_font.clone());
                 cur_addr += 1;
                 cur_addr_actual += 1;

objdiff-gui/src/views/diff.rs

@@ -49,7 +49,9 @@ impl<'a> DiffColumnContext<'a> {
         let selected_symbol = match view {
             View::SymbolDiff => None,
             View::FunctionDiff | View::ExtabDiff => match (obj, selected_symbol) {
-                (Some(obj), Some(s)) => find_symbol(&obj.0, s).map(SelectedSymbol::Symbol),
+                (Some(obj), Some(s)) => {
+                    obj.0.symbol_by_name(&s.symbol_name).map(SelectedSymbol::Symbol)
+                }
                 _ => None,
             },
             View::DataDiff => match (obj, selected_symbol) {
@@ -497,6 +499,7 @@ pub fn diff_view_ui(
             (state.current_view, left_ctx.obj, right_ctx.obj, left_ctx.section, right_ctx.section)
         {
             // Joint diff view
+            hotkeys::check_scroll_hotkeys(ui, true);
             let left_total_bytes =
                 left_section_diff.data_diff.iter().fold(0usize, |accum, item| accum + item.len);
             let right_total_bytes =
@@ -779,10 +782,6 @@ fn missing_obj_ui(ui: &mut Ui, appearance: &Appearance) {
     });
 }
 
-fn find_symbol(obj: &Object, selected_symbol: &SymbolRefByName) -> Option<usize> {
-    obj.symbols.iter().position(|symbol| symbol.name == selected_symbol.symbol_name)
-}
-
 fn find_section(obj: &Object, section_name: &str) -> Option<usize> {
     obj.sections.iter().position(|section| section.name == section_name)
 }

objdiff-wasm/Cargo.toml

@@ -28,13 +28,13 @@ xxhash-rust = { version = "0.8", default-features = false, features = ["xxh3"] }
 [dependencies.objdiff-core]
 path = "../objdiff-core"
 default-features = false
-features = ["arm", "arm64", "mips", "ppc", "x86", "dwarf"]
+features = ["arm", "arm64", "mips", "ppc", "superh", "x86", "dwarf"]
 
 [target.'cfg(target_family = "wasm")'.dependencies]
 talc = { version = "4.4", default-features = false, features = ["lock_api"] }
 
 [target.'cfg(target_os = "wasi")'.dependencies]
-wit-bindgen = { version = "0.41", default-features = false, features = ["macros"] }
+wit-bindgen = { version = "0.42", default-features = false, features = ["macros"] }
 
 [build-dependencies]
 wit-deps = "0.5"

objdiff-wasm/package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "objdiff-wasm",
-  "version": "3.0.0-beta.6",
+  "version": "3.0.0-beta.9",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "objdiff-wasm",
-      "version": "3.0.0-beta.6",
+      "version": "3.0.0-beta.9",
       "license": "MIT OR Apache-2.0",
       "devDependencies": {
         "@biomejs/biome": "^1.9.3",

objdiff-wasm/package.json

@@ -1,6 +1,6 @@
 {
   "name": "objdiff-wasm",
-  "version": "3.0.0-beta.6",
+  "version": "3.0.0-beta.9",
   "description": "A local diffing tool for decompilation projects.",
   "author": {
     "name": "Luke Street",

objdiff-wasm/src/api.rs

@@ -24,14 +24,14 @@ wit_bindgen::generate!({
 use exports::objdiff::core::{
     diff::{
         DiffConfigBorrow, DiffResult, Guest as GuestDiff, GuestDiffConfig, GuestObject,
-        GuestObjectDiff, Object, ObjectBorrow, ObjectDiff, ObjectDiffBorrow,
+        GuestObjectDiff, MappingConfig, Object, ObjectBorrow, ObjectDiff, ObjectDiffBorrow,
+        SymbolFlags, SymbolInfo, SymbolKind, SymbolRef,
     },
     display::{
         ContextItem, ContextItemCopy, ContextItemNavigate, DiffText, DiffTextColor, DiffTextOpcode,
         DiffTextSegment, DiffTextSymbol, DisplayConfig, Guest as GuestDisplay, HoverItem,
         HoverItemColor, HoverItemText, InstructionDiffKind, InstructionDiffRow, SectionDisplay,
-        SectionDisplaySymbol, SymbolDisplay, SymbolFilter, SymbolFlags, SymbolKind,
-        SymbolNavigationKind, SymbolRef,
+        SymbolDisplay, SymbolFilter, SymbolNavigationKind,
     },
 };
 
@@ -59,15 +59,17 @@ impl GuestDiff for Component {
         left: Option<ObjectBorrow>,
         right: Option<ObjectBorrow>,
         diff_config: DiffConfigBorrow,
+        mapping_config: MappingConfig,
     ) -> Result<DiffResult, String> {
         let diff_config = diff_config.get::<ResourceDiffConfig>().0.borrow();
+        let mapping_config = diff::MappingConfig::from(mapping_config);
         log::debug!("Running diff with config: {:?}", diff_config);
         let result = diff::diff_objs(
             left.as_ref().map(|o| o.get::<ResourceObject>().0.as_ref()),
             right.as_ref().map(|o| o.get::<ResourceObject>().0.as_ref()),
             None,
             &diff_config,
-            &diff::MappingConfig::default(),
+            &mapping_config,
         )
         .map_err(|e| e.to_string())?;
         Ok(DiffResult {
@@ -134,48 +136,47 @@ impl GuestDisplay for Component {
             name: d.name,
             size: d.size,
             match_percent: d.match_percent,
-            symbols: d
-                .symbols
-                .into_iter()
-                .map(|s| SectionDisplaySymbol {
-                    symbol: s.symbol as SymbolRef,
-                    is_mapping_symbol: s.is_mapping_symbol,
-                })
-                .collect(),
+            symbols: d.symbols.into_iter().map(to_symbol_ref).collect(),
         })
         .collect()
     }
 
-    fn display_symbol(
-        diff: ObjectDiffBorrow,
-        symbol_display: SectionDisplaySymbol,
-    ) -> SymbolDisplay {
+    fn display_symbol(diff: ObjectDiffBorrow, symbol_ref: SymbolRef) -> SymbolDisplay {
         let obj_diff = diff.get::<ResourceObjectDiff>();
         let obj = obj_diff.0.as_ref();
         let obj_diff = &obj_diff.1;
-        let symbol_idx = symbol_display.symbol as usize;
-        let Some(symbol) = obj.symbols.get(symbol_idx) else {
-            return SymbolDisplay { name: "<unknown>".to_string(), ..Default::default() };
+        let symbol_display = from_symbol_ref(symbol_ref);
+        let Some(symbol) = obj.symbols.get(symbol_display.symbol) else {
+            return SymbolDisplay {
+                info: SymbolInfo { name: "<unknown>".to_string(), ..Default::default() },
+                ..Default::default()
+            };
         };
         let symbol_diff = if symbol_display.is_mapping_symbol {
             obj_diff
                 .mapping_symbols
                 .iter()
-                .find(|s| s.symbol_index == symbol_idx)
+                .find(|s| s.symbol_index == symbol_display.symbol)
                 .map(|s| &s.symbol_diff)
         } else {
-            obj_diff.symbols.get(symbol_idx)
+            obj_diff.symbols.get(symbol_display.symbol)
         };
         SymbolDisplay {
-            name: symbol.name.clone(),
-            demangled_name: symbol.demangled_name.clone(),
-            address: symbol.address,
-            size: symbol.size,
-            kind: SymbolKind::from(symbol.kind),
-            section: symbol.section.map(|s| s as u32),
-            flags: SymbolFlags::from(symbol.flags),
-            align: symbol.align.map(|a| a.get()),
-            virtual_address: symbol.virtual_address,
+            info: SymbolInfo {
+                id: to_symbol_ref(symbol_display),
+                name: symbol.name.clone(),
+                demangled_name: symbol.demangled_name.clone(),
+                address: symbol.address,
+                size: symbol.size,
+                kind: SymbolKind::from(symbol.kind),
+                section: symbol.section.map(|s| s as u32),
+                section_name: symbol
+                    .section
+                    .and_then(|s| obj.sections.get(s).map(|sec| sec.name.clone())),
+                flags: SymbolFlags::from(symbol.flags),
+                align: symbol.align.map(|a| a.get()),
+                virtual_address: symbol.virtual_address,
+            },
             target_symbol: symbol_diff.and_then(|sd| sd.target_symbol.map(|s| s as u32)),
             match_percent: symbol_diff.and_then(|sd| sd.match_percent),
             diff_score: symbol_diff.and_then(|sd| sd.diff_score),
@@ -185,22 +186,22 @@ impl GuestDisplay for Component {
 
     fn display_instruction_row(
         diff: ObjectDiffBorrow,
-        symbol_display: SectionDisplaySymbol,
+        symbol_ref: SymbolRef,
         row_index: u32,
         diff_config: DiffConfigBorrow,
     ) -> InstructionDiffRow {
         let obj_diff = diff.get::<ResourceObjectDiff>();
         let obj = obj_diff.0.as_ref();
         let obj_diff = &obj_diff.1;
-        let symbol_idx = symbol_display.symbol as usize;
+        let symbol_display = from_symbol_ref(symbol_ref);
         let symbol_diff = if symbol_display.is_mapping_symbol {
             obj_diff
                 .mapping_symbols
                 .iter()
-                .find(|s| s.symbol_index == symbol_idx)
+                .find(|s| s.symbol_index == symbol_display.symbol)
                 .map(|s| &s.symbol_diff)
         } else {
-            obj_diff.symbols.get(symbol_idx)
+            obj_diff.symbols.get(symbol_display.symbol)
         };
         let Some(row) = symbol_diff.and_then(|sd| sd.instruction_rows.get(row_index as usize))
         else {
@@ -208,7 +209,7 @@ impl GuestDisplay for Component {
         };
         let diff_config = diff_config.get::<ResourceDiffConfig>().0.borrow();
         let mut segments = Vec::with_capacity(16);
-        diff::display::display_row(obj, symbol_idx, row, &diff_config, |segment| {
+        diff::display::display_row(obj, symbol_display.symbol, row, &diff_config, |segment| {
             segments.push(DiffTextSegment::from(segment));
             Ok(())
         })
@@ -216,26 +217,22 @@ impl GuestDisplay for Component {
         InstructionDiffRow { segments, diff_kind: InstructionDiffKind::from(row.kind) }
     }
 
-    fn symbol_context(
-        diff: ObjectDiffBorrow,
-        symbol_display: SectionDisplaySymbol,
-    ) -> Vec<ContextItem> {
+    fn symbol_context(diff: ObjectDiffBorrow, symbol_ref: SymbolRef) -> Vec<ContextItem> {
         let obj_diff = diff.get::<ResourceObjectDiff>();
         let obj = obj_diff.0.as_ref();
+        let symbol_display = from_symbol_ref(symbol_ref);
         diff::display::symbol_context(obj, symbol_display.symbol as usize)
             .into_iter()
             .map(|item| ContextItem::from(item))
             .collect()
     }
 
-    fn symbol_hover(
-        diff: ObjectDiffBorrow,
-        symbol_display: SectionDisplaySymbol,
-    ) -> Vec<HoverItem> {
+    fn symbol_hover(diff: ObjectDiffBorrow, symbol_ref: SymbolRef) -> Vec<HoverItem> {
         let obj_diff = diff.get::<ResourceObjectDiff>();
         let obj = obj_diff.0.as_ref();
         let addend = 0; // TODO
         let override_color = None; // TODO: colorize replaced/deleted/inserted relocations
+        let symbol_display = from_symbol_ref(symbol_ref);
         diff::display::symbol_hover(obj, symbol_display.symbol as usize, addend, override_color)
             .into_iter()
             .map(|item| HoverItem::from(item))
@@ -244,22 +241,22 @@ impl GuestDisplay for Component {
 
     fn instruction_context(
         diff: ObjectDiffBorrow,
-        symbol_display: SectionDisplaySymbol,
+        symbol_ref: SymbolRef,
         row_index: u32,
         diff_config: DiffConfigBorrow,
     ) -> Vec<ContextItem> {
         let obj_diff = diff.get::<ResourceObjectDiff>();
         let obj = obj_diff.0.as_ref();
         let obj_diff = &obj_diff.1;
-        let symbol_idx = symbol_display.symbol as usize;
+        let symbol_display = from_symbol_ref(symbol_ref);
         let symbol_diff = if symbol_display.is_mapping_symbol {
             obj_diff
                 .mapping_symbols
                 .iter()
-                .find(|s| s.symbol_index == symbol_idx)
+                .find(|s| s.symbol_index == symbol_display.symbol)
                 .map(|s| &s.symbol_diff)
         } else {
-            obj_diff.symbols.get(symbol_idx)
+            obj_diff.symbols.get(symbol_display.symbol)
         };
         let Some(ins_ref) = symbol_diff
             .and_then(|sd| sd.instruction_rows.get(row_index as usize))
@@ -268,7 +265,7 @@ impl GuestDisplay for Component {
             return Vec::new();
         };
         let diff_config = diff_config.get::<ResourceDiffConfig>().0.borrow();
-        let Some(resolved) = obj.resolve_instruction_ref(symbol_idx, ins_ref) else {
+        let Some(resolved) = obj.resolve_instruction_ref(symbol_display.symbol, ins_ref) else {
             return vec![ContextItem::Copy(ContextItemCopy {
                 value: "Failed to resolve instruction".to_string(),
                 label: Some("error".to_string()),
@@ -291,22 +288,22 @@ impl GuestDisplay for Component {
 
     fn instruction_hover(
         diff: ObjectDiffBorrow,
-        symbol_display: SectionDisplaySymbol,
+        symbol_ref: SymbolRef,
         row_index: u32,
         diff_config: DiffConfigBorrow,
     ) -> Vec<HoverItem> {
         let obj_diff = diff.get::<ResourceObjectDiff>();
         let obj = obj_diff.0.as_ref();
         let obj_diff = &obj_diff.1;
-        let symbol_idx = symbol_display.symbol as usize;
+        let symbol_display = from_symbol_ref(symbol_ref);
         let symbol_diff = if symbol_display.is_mapping_symbol {
             obj_diff
                 .mapping_symbols
                 .iter()
-                .find(|s| s.symbol_index == symbol_idx)
+                .find(|s| s.symbol_index == symbol_display.symbol)
                 .map(|s| &s.symbol_diff)
         } else {
-            obj_diff.symbols.get(symbol_idx)
+            obj_diff.symbols.get(symbol_display.symbol)
         };
         let Some(ins_ref) = symbol_diff
             .and_then(|sd| sd.instruction_rows.get(row_index as usize))
@@ -315,7 +312,7 @@ impl GuestDisplay for Component {
             return Vec::new();
         };
         let diff_config = diff_config.get::<ResourceDiffConfig>().0.borrow();
-        let Some(resolved) = obj.resolve_instruction_ref(symbol_idx, ins_ref) else {
+        let Some(resolved) = obj.resolve_instruction_ref(symbol_display.symbol, ins_ref) else {
             return vec![HoverItem::Text(HoverItemText {
                 label: "Error".to_string(),
                 value: "Failed to resolve instruction".to_string(),
@@ -497,20 +494,56 @@ impl GuestObject for ResourceObject {
 }
 
 impl GuestObjectDiff for ResourceObjectDiff {
-    fn find_symbol(&self, name: String, section_name: Option<String>) -> Option<SymbolRef> {
+    fn find_symbol(&self, name: String, section_name: Option<String>) -> Option<SymbolInfo> {
         let obj = self.0.as_ref();
-        obj.symbols
-            .iter()
-            .position(|s| {
-                s.name == name
-                    && match section_name.as_deref() {
-                        Some(section_name) => {
-                            s.section.is_some_and(|n| obj.sections[n].name == section_name)
-                        }
-                        None => true,
+        let symbol_idx = obj.symbols.iter().position(|s| {
+            s.name == name
+                && match section_name.as_deref() {
+                    Some(section_name) => {
+                        s.section.is_some_and(|n| obj.sections[n].name == section_name)
                     }
-            })
-            .map(|i| i as SymbolRef)
+                    None => true,
+                }
+        })?;
+        let symbol = obj.symbols.get(symbol_idx)?;
+        Some(SymbolInfo {
+            id: symbol_idx as SymbolRef,
+            name: symbol.name.clone(),
+            demangled_name: symbol.demangled_name.clone(),
+            address: symbol.address,
+            size: symbol.size,
+            kind: SymbolKind::from(symbol.kind),
+            section: symbol.section.map(|s| s as u32),
+            section_name: symbol
+                .section
+                .and_then(|s| obj.sections.get(s).map(|sec| sec.name.clone())),
+            flags: SymbolFlags::from(symbol.flags),
+            align: symbol.align.map(|a| a.get()),
+            virtual_address: symbol.virtual_address,
+        })
+    }
+
+    fn get_symbol(&self, symbol_ref: SymbolRef) -> Option<SymbolInfo> {
+        let obj = self.0.as_ref();
+        let symbol_display = from_symbol_ref(symbol_ref);
+        let Some(symbol) = obj.symbols.get(symbol_display.symbol) else {
+            return None;
+        };
+        Some(SymbolInfo {
+            id: to_symbol_ref(symbol_display),
+            name: symbol.name.clone(),
+            demangled_name: symbol.demangled_name.clone(),
+            address: symbol.address,
+            size: symbol.size,
+            kind: SymbolKind::from(symbol.kind),
+            section: symbol.section.map(|s| s as u32),
+            section_name: symbol
+                .section
+                .and_then(|s| obj.sections.get(s).map(|sec| sec.name.clone())),
+            flags: SymbolFlags::from(symbol.flags),
+            align: symbol.align.map(|a| a.get()),
+            virtual_address: symbol.virtual_address,
+        })
     }
 }
 
@@ -580,18 +613,28 @@ impl Default for SymbolFlags {
     fn default() -> Self { Self::empty() }
 }
 
-impl Default for SymbolDisplay {
+impl Default for SymbolInfo {
     fn default() -> Self {
         Self {
+            id: u32::MAX,
             name: Default::default(),
             demangled_name: Default::default(),
             address: Default::default(),
             size: Default::default(),
             kind: Default::default(),
             section: Default::default(),
+            section_name: Default::default(),
             flags: Default::default(),
             align: Default::default(),
             virtual_address: Default::default(),
+        }
+    }
+}
+
+impl Default for SymbolDisplay {
+    fn default() -> Self {
+        Self {
+            info: Default::default(),
             target_symbol: Default::default(),
             match_percent: Default::default(),
             diff_score: Default::default(),
@@ -600,4 +643,30 @@ impl Default for SymbolDisplay {
     }
 }
 
+impl From<MappingConfig> for diff::MappingConfig {
+    fn from(config: MappingConfig) -> Self {
+        Self {
+            mappings: config.mappings.into_iter().collect(),
+            selecting_left: config.selecting_left,
+            selecting_right: config.selecting_right,
+        }
+    }
+}
+
+fn from_symbol_ref(symbol_ref: SymbolRef) -> diff::display::SectionDisplaySymbol {
+    diff::display::SectionDisplaySymbol {
+        symbol: (symbol_ref & !(1 << 31)) as usize,
+        is_mapping_symbol: (symbol_ref & (1 << 31)) != 0,
+    }
+}
+
+fn to_symbol_ref(display_symbol: diff::display::SectionDisplaySymbol) -> SymbolRef {
+    if display_symbol.is_mapping_symbol {
+        // Use the highest bit to indicate a mapping symbol
+        display_symbol.symbol as u32 | (1 << 31)
+    } else {
+        display_symbol.symbol as u32
+    }
+}
+
 export!(Component);

objdiff-wasm/wit/objdiff.wit

@@ -24,58 +24,8 @@ interface diff {
     hash: func() -> u64;
   }
 
-  resource object-diff {
-    find-symbol: func(
-      name: string,
-      section-name: option<string>
-    ) -> option<u32>;
-  }
-
-  record diff-result {
-    left: option<object-diff>,
-    right: option<object-diff>,
-  }
-
-  run-diff: func(
-    left: option<borrow<object>>,
-    right: option<borrow<object>>,
-    config: borrow<diff-config>,
-  ) -> result<diff-result, string>;
-}
-
-interface display {
-  use diff.{
-    object,
-    object-diff,
-    diff-config
-  };
-
   type symbol-ref = u32;
 
-  record display-config {
-    show-hidden-symbols: bool,
-    show-mapped-symbols: bool,
-    reverse-fn-order: bool,
-  }
-
-  record symbol-filter {
-    regex: option<string>,
-    mapping: option<symbol-ref>,
-  }
-
-  record section-display-symbol {
-    symbol: symbol-ref,
-    is-mapping-symbol: bool,
-  }
-
-  record section-display {
-    id: string,
-    name: string,
-    size: u64,
-    match-percent: option<f32>,
-    symbols: list<section-display-symbol>,
-  }
-
   enum symbol-kind {
     unknown,
     function,
@@ -94,17 +44,74 @@ interface display {
     ignored,
   }
 
-  record symbol-display {
+  record symbol-info {
+    id: symbol-ref,
     name: string,
     demangled-name: option<string>,
     address: u64,
     size: u64,
     kind: symbol-kind,
     section: option<u32>,
+    section-name: option<string>,
     %flags: symbol-flags,
     align: option<u32>,
     virtual-address: option<u64>,
+  }
 
+  resource object-diff {
+    find-symbol: func(
+      name: string,
+      section-name: option<string>
+    ) -> option<symbol-info>;
+
+    get-symbol: func(
+      id: u32
+    ) -> option<symbol-info>;
+  }
+
+  record diff-result {
+    left: option<object-diff>,
+    right: option<object-diff>,
+  }
+
+  run-diff: func(
+    left: option<borrow<object>>,
+    right: option<borrow<object>>,
+    config: borrow<diff-config>,
+    mapping: mapping-config,
+  ) -> result<diff-result, string>;
+}
+
+interface display {
+  use diff.{
+    object,
+    object-diff,
+    diff-config,
+    symbol-info,
+    symbol-ref
+  };
+
+  record display-config {
+    show-hidden-symbols: bool,
+    show-mapped-symbols: bool,
+    reverse-fn-order: bool,
+  }
+
+  record symbol-filter {
+    regex: option<string>,
+    mapping: option<symbol-ref>,
+  }
+
+  record section-display {
+    id: string,
+    name: string,
+    size: u64,
+    match-percent: option<f32>,
+    symbols: list<symbol-ref>,
+  }
+
+  record symbol-display {
+    info: symbol-info,
     target-symbol: option<symbol-ref>,
     match-percent: option<f32>,
     diff-score: option<tuple<u64, u64>>,
@@ -232,36 +239,36 @@ interface display {
 
   display-symbol: func(
     diff: borrow<object-diff>,
-    symbol: section-display-symbol,
+    symbol: symbol-ref,
   ) -> symbol-display;
 
   display-instruction-row: func(
     diff: borrow<object-diff>,
-    symbol: section-display-symbol,
+    symbol: symbol-ref,
     row-index: u32,
     config: borrow<diff-config>,
   ) -> instruction-diff-row;
 
   symbol-context: func(
     diff: borrow<object-diff>,
-    symbol: section-display-symbol,
+    symbol: symbol-ref,
   ) -> list<context-item>;
 
   symbol-hover: func(
     diff: borrow<object-diff>,
-    symbol: section-display-symbol,
+    symbol: symbol-ref,
   ) -> list<hover-item>;
 
   instruction-context: func(
     diff: borrow<object-diff>,
-    symbol: section-display-symbol,
+    symbol: symbol-ref,
     row-index: u32,
     config: borrow<diff-config>,
   ) -> list<context-item>;
 
   instruction-hover: func(
     diff: borrow<object-diff>,
-    symbol: section-display-symbol,
+    symbol: symbol-ref,
     row-index: u32,
     config: borrow<diff-config>,
   ) -> list<hover-item>;