Version 2.5.0

* Fix missing dependency feature for objdiff-gui

* Update .gitignore

* PPC: Display data values on hover for pools as well

* Tooltip data display: Format floats and doubles better

Floats and doubles will now always be displayed with a decimal point and one digit after it, even if they are whole numbers. Floats will also have the f suffix. This is so you can tell the data type just by glancing at the value.

* Move big functions to bottom ppc.rs

* Clear pool relocs in volatile registers on function call

This fixes some false positives.

* Revert ObjArch API changes, add fake target symbol hack

Because we no longer have access to the actual symbol name via sections, guess_data_type can no longer detect the String data type for pooled references.

* Add hack to detect strings via the addi opcode

* Move hack to resolve placeholder symbol into process_code_symbol

* Merge reloc and fake_pool_reloc fields of ObjIns

.gitignore

@@ -18,4 +18,4 @@ android.keystore
 *.frag
 *.vert
 *.metal
-.vscode/launch.json
+.vscode/

Cargo.toml

@@ -13,7 +13,7 @@ strip = "debuginfo"
 codegen-units = 1
 
 [workspace.package]
-version = "2.3.4"
+version = "2.5.0"
 authors = ["Luke Street <luke@street.dev>"]
 edition = "2021"
 license = "MIT OR Apache-2.0"

README.md

@@ -20,6 +20,7 @@ Supports:
 - MIPS (N64, PS1, PS2, PSP)
 - x86 (COFF only at the moment)
 - ARM (GBA, DS, 3DS)
+- ARM64 (Switch, experimental)
 
 See [Usage](#usage) for more information.
 

deny.toml

@@ -73,6 +73,7 @@ ignore = [
     #{ id = "RUSTSEC-0000-0000", reason = "you can specify a reason the advisory is ignored" },
     #"a-crate-that-is-yanked@0.1.1", # you can also ignore yanked crate versions if you wish
     #{ crate = "a-crate-that-is-yanked@0.1.1", reason = "you can specify why you are ignoring the yanked crate" },
+    { id = "RUSTSEC-2024-0384", reason = "Unmaintained indirect dependency" },
 ]
 # If this is true, then cargo deny will use the git executable to fetch advisory database.
 # If this is false, then it uses a built-in git library.
@@ -97,7 +98,7 @@ allow = [
     "BSL-1.0",
     "CC0-1.0",
     "MPL-2.0",
-    "Unicode-DFS-2016",
+    "Unicode-3.0",
     "Zlib",
     "0BSD",
     "OFL-1.1",

objdiff-cli/Cargo.toml

@@ -14,13 +14,13 @@ publish = false
 
 [dependencies]
 anyhow = "1.0"
-argp = "0.3"
+argp = "0.4"
 crossterm = "0.28"
 enable-ansi-support = "0.2"
 memmap2 = "0.9"
 objdiff-core = { path = "../objdiff-core", features = ["all"] }
 prost = "0.13"
-ratatui = "0.28"
+ratatui = "0.29"
 rayon = "1.10"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"

objdiff-cli/src/cmd/diff.rs

@@ -1,42 +1,50 @@
 use std::{
     fs,
     io::stdout,
+    mem,
     path::{Path, PathBuf},
     str::FromStr,
+    sync::{
+        atomic::{AtomicBool, Ordering},
+        Arc,
+    },
+    task::{Wake, Waker},
+    time::Duration,
 };
 
 use anyhow::{bail, Context, Result};
 use argp::FromArgs;
 use crossterm::{
     event,
-    event::{
-        DisableMouseCapture, EnableMouseCapture, Event, KeyCode, KeyEventKind, MouseButton,
-        MouseEventKind,
-    },
+    event::{DisableMouseCapture, EnableMouseCapture},
     terminal::{
         disable_raw_mode, enable_raw_mode, EnterAlternateScreen, LeaveAlternateScreen, SetTitle,
     },
 };
-use event::KeyModifiers;
 use objdiff_core::{
     bindings::diff::DiffResult,
-    config::{ProjectConfig, ProjectObject},
+    build::{
+        watcher::{create_watcher, Watcher},
+        BuildConfig,
+    },
+    config::{build_globset, default_watch_patterns, ProjectConfig, ProjectObject},
     diff,
-    diff::{
-        display::{display_diff, DiffText, HighlightKind},
-        DiffObjsResult, ObjDiff, ObjInsDiffKind, ObjSymbolDiff,
+    diff::ObjDiff,
+    jobs::{
+        objdiff::{start_build, ObjDiffConfig},
+        Job, JobQueue, JobResult,
     },
     obj,
-    obj::{ObjInfo, ObjSectionKind, ObjSymbol, SymbolRef},
-};
-use ratatui::{
-    prelude::*,
-    widgets::{Block, Borders, Clear, Paragraph, Scrollbar, ScrollbarOrientation, ScrollbarState},
+    obj::ObjInfo,
 };
+use ratatui::prelude::*;
 
-use crate::util::{
-    output::{write_output, OutputFormat},
-    term::crossterm_panic_handler,
+use crate::{
+    util::{
+        output::{write_output, OutputFormat},
+        term::crossterm_panic_handler,
+    },
+    views::{function_diff::FunctionDiffUi, EventControlFlow, EventResult, UiView},
 };
 
 #[derive(FromArgs, PartialEq, Debug)]
@@ -209,6 +217,94 @@ fn run_oneshot(
     Ok(())
 }
 
+pub struct AppState {
+    pub jobs: JobQueue,
+    pub waker: Arc<TermWaker>,
+    pub project_dir: Option<PathBuf>,
+    pub project_config: Option<ProjectConfig>,
+    pub target_path: Option<PathBuf>,
+    pub base_path: Option<PathBuf>,
+    pub left_obj: Option<(ObjInfo, ObjDiff)>,
+    pub right_obj: Option<(ObjInfo, ObjDiff)>,
+    pub prev_obj: Option<(ObjInfo, ObjDiff)>,
+    pub reload_time: Option<time::OffsetDateTime>,
+    pub time_format: Vec<time::format_description::FormatItem<'static>>,
+    pub relax_reloc_diffs: bool,
+    pub watcher: Option<Watcher>,
+    pub modified: Arc<AtomicBool>,
+}
+
+fn create_objdiff_config(state: &AppState) -> ObjDiffConfig {
+    ObjDiffConfig {
+        build_config: BuildConfig {
+            project_dir: state.project_dir.clone(),
+            custom_make: state
+                .project_config
+                .as_ref()
+                .and_then(|c| c.custom_make.as_ref())
+                .cloned(),
+            custom_args: state
+                .project_config
+                .as_ref()
+                .and_then(|c| c.custom_args.as_ref())
+                .cloned(),
+            selected_wsl_distro: None,
+        },
+        build_base: state.project_config.as_ref().is_some_and(|p| p.build_base.unwrap_or(true)),
+        build_target: state
+            .project_config
+            .as_ref()
+            .is_some_and(|p| p.build_target.unwrap_or(false)),
+        target_path: state.target_path.clone(),
+        base_path: state.base_path.clone(),
+        diff_obj_config: diff::DiffObjConfig {
+            relax_reloc_diffs: state.relax_reloc_diffs,
+            ..Default::default() // TODO
+        },
+        symbol_mappings: Default::default(),
+        selecting_left: None,
+        selecting_right: None,
+    }
+}
+
+impl AppState {
+    fn reload(&mut self) -> Result<()> {
+        let config = create_objdiff_config(self);
+        self.jobs.push_once(Job::ObjDiff, || start_build(Waker::from(self.waker.clone()), config));
+        Ok(())
+    }
+
+    fn check_jobs(&mut self) -> Result<bool> {
+        let mut redraw = false;
+        self.jobs.collect_results();
+        for result in mem::take(&mut self.jobs.results) {
+            match result {
+                JobResult::None => unreachable!("Unexpected JobResult::None"),
+                JobResult::ObjDiff(result) => {
+                    let result = result.unwrap();
+                    self.left_obj = result.first_obj;
+                    self.right_obj = result.second_obj;
+                    self.reload_time = Some(result.time);
+                    redraw = true;
+                }
+                JobResult::CheckUpdate(_) => todo!("CheckUpdate"),
+                JobResult::Update(_) => todo!("Update"),
+                JobResult::CreateScratch(_) => todo!("CreateScratch"),
+            }
+        }
+        Ok(redraw)
+    }
+}
+
+#[derive(Default)]
+pub struct TermWaker(pub AtomicBool);
+
+impl Wake for TermWaker {
+    fn wake(self: Arc<Self>) { self.0.store(true, Ordering::Relaxed); }
+
+    fn wake_by_ref(self: &Arc<Self>) { self.0.store(true, Ordering::Relaxed); }
+}
+
 fn run_interactive(
     args: Args,
     target_path: Option<PathBuf>,
@@ -218,32 +314,38 @@ fn run_interactive(
     let Some(symbol_name) = &args.symbol else { bail!("Interactive mode requires a symbol name") };
     let time_format = time::format_description::parse_borrowed::<2>("[hour]:[minute]:[second]")
         .context("Failed to parse time format")?;
-    let mut state = Box::new(FunctionDiffUi {
-        relax_reloc_diffs: args.relax_reloc_diffs,
-        left_highlight: HighlightKind::None,
-        right_highlight: HighlightKind::None,
-        scroll_x: 0,
-        scroll_state_x: ScrollbarState::default(),
-        scroll_y: 0,
-        scroll_state_y: ScrollbarState::default(),
-        per_page: 0,
-        num_rows: 0,
-        symbol_name: symbol_name.clone(),
+    let mut state = AppState {
+        jobs: Default::default(),
+        waker: Default::default(),
+        project_dir: args.project.clone(),
+        project_config,
         target_path,
         base_path,
-        project_config,
         left_obj: None,
         right_obj: None,
         prev_obj: None,
-        diff_result: DiffObjsResult::default(),
-        left_sym: None,
-        right_sym: None,
-        prev_sym: None,
         reload_time: None,
         time_format,
-        open_options: false,
-        three_way: false,
-    });
+        relax_reloc_diffs: args.relax_reloc_diffs,
+        watcher: None,
+        modified: Default::default(),
+    };
+    if let Some(project_dir) = &state.project_dir {
+        let watch_patterns = state
+            .project_config
+            .as_ref()
+            .and_then(|c| c.watch_patterns.as_ref())
+            .cloned()
+            .unwrap_or_else(default_watch_patterns);
+        state.watcher = Some(create_watcher(
+            state.modified.clone(),
+            project_dir,
+            build_globset(&watch_patterns)?,
+            Waker::from(state.waker.clone()),
+        )?);
+    }
+    let mut view: Box<dyn UiView> =
+        Box::new(FunctionDiffUi { symbol_name: symbol_name.clone(), ..Default::default() });
     state.reload()?;
 
     crossterm_panic_handler();
@@ -257,31 +359,43 @@ fn run_interactive(
     let backend = CrosstermBackend::new(stdout());
     let mut terminal = Terminal::new(backend)?;
 
+    let mut result = EventResult { redraw: true, ..Default::default() };
     'outer: loop {
-        let mut result = EventResult { redraw: true, ..Default::default() };
+        if result.redraw {
+            terminal.draw(|f| loop {
+                result.redraw = false;
+                view.draw(&state, f, &mut result);
+                result.click_xy = None;
+                if !result.redraw {
+                    break;
+                }
+                // Clear buffer on redraw
+                f.buffer_mut().reset();
+            })?;
+        }
         loop {
-            if result.redraw {
-                terminal.draw(|f| loop {
-                    result.redraw = false;
-                    state.draw(f, &mut result);
-                    if state.open_options {
-                        state.draw_options(f, &mut result);
+            if event::poll(Duration::from_millis(100))? {
+                match view.handle_event(&mut state, event::read()?) {
+                    EventControlFlow::Break => break 'outer,
+                    EventControlFlow::Continue(r) => result = r,
+                    EventControlFlow::Reload => {
+                        state.reload()?;
+                        result.redraw = true;
                     }
-                    result.click_xy = None;
-                    if !result.redraw {
-                        break;
-                    }
-                    // Clear buffer on redraw
-                    f.buffer_mut().reset();
-                })?;
-            }
-            match state.handle_event(event::read()?) {
-                EventControlFlow::Break => break 'outer,
-                EventControlFlow::Continue(r) => result = r,
-                EventControlFlow::Reload => break,
+                }
+                break;
+            } else if state.waker.0.swap(false, Ordering::Relaxed) {
+                if state.modified.swap(false, Ordering::Relaxed) {
+                    state.reload()?;
+                }
+                result.redraw = true;
+                break;
             }
         }
-        state.reload()?;
+        if state.check_jobs()? {
+            result.redraw = true;
+            view.reload(&state)?;
+        }
     }
 
     // Reset terminal
@@ -290,676 +404,3 @@ fn run_interactive(
     terminal.show_cursor()?;
     Ok(())
 }
-
-#[inline]
-fn get_symbol(obj: Option<&ObjInfo>, sym: Option<SymbolRef>) -> Option<&ObjSymbol> {
-    Some(obj?.section_symbol(sym?).1)
-}
-
-#[inline]
-fn get_symbol_diff(obj: Option<&ObjDiff>, sym: Option<SymbolRef>) -> Option<&ObjSymbolDiff> {
-    Some(obj?.symbol_diff(sym?))
-}
-
-fn find_function(obj: &ObjInfo, name: &str) -> Option<SymbolRef> {
-    for (section_idx, section) in obj.sections.iter().enumerate() {
-        if section.kind != ObjSectionKind::Code {
-            continue;
-        }
-        for (symbol_idx, symbol) in section.symbols.iter().enumerate() {
-            if symbol.name == name {
-                return Some(SymbolRef { section_idx, symbol_idx });
-            }
-        }
-    }
-    None
-}
-
-#[expect(dead_code)]
-struct FunctionDiffUi {
-    relax_reloc_diffs: bool,
-    left_highlight: HighlightKind,
-    right_highlight: HighlightKind,
-    scroll_x: usize,
-    scroll_state_x: ScrollbarState,
-    scroll_y: usize,
-    scroll_state_y: ScrollbarState,
-    per_page: usize,
-    num_rows: usize,
-    symbol_name: String,
-    target_path: Option<PathBuf>,
-    base_path: Option<PathBuf>,
-    project_config: Option<ProjectConfig>,
-    left_obj: Option<ObjInfo>,
-    right_obj: Option<ObjInfo>,
-    prev_obj: Option<ObjInfo>,
-    diff_result: DiffObjsResult,
-    left_sym: Option<SymbolRef>,
-    right_sym: Option<SymbolRef>,
-    prev_sym: Option<SymbolRef>,
-    reload_time: Option<time::OffsetDateTime>,
-    time_format: Vec<time::format_description::FormatItem<'static>>,
-    open_options: bool,
-    three_way: bool,
-}
-
-#[derive(Default)]
-struct EventResult {
-    redraw: bool,
-    click_xy: Option<(u16, u16)>,
-}
-
-enum EventControlFlow {
-    Break,
-    Continue(EventResult),
-    Reload,
-}
-
-impl FunctionDiffUi {
-    fn draw(&mut self, f: &mut Frame, result: &mut EventResult) {
-        let chunks = Layout::vertical([Constraint::Length(1), Constraint::Fill(1)]).split(f.area());
-        let header_chunks = Layout::horizontal([
-            Constraint::Fill(1),
-            Constraint::Length(3),
-            Constraint::Fill(1),
-            Constraint::Length(2),
-        ])
-        .split(chunks[0]);
-        let content_chunks = if self.three_way {
-            Layout::horizontal([
-                Constraint::Fill(1),
-                Constraint::Length(3),
-                Constraint::Fill(1),
-                Constraint::Length(3),
-                Constraint::Fill(1),
-                Constraint::Length(2),
-            ])
-            .split(chunks[1])
-        } else {
-            Layout::horizontal([
-                Constraint::Fill(1),
-                Constraint::Length(3),
-                Constraint::Fill(1),
-                Constraint::Length(2),
-            ])
-            .split(chunks[1])
-        };
-
-        self.per_page = chunks[1].height.saturating_sub(2) as usize;
-        let max_scroll_y = self.num_rows.saturating_sub(self.per_page);
-        if self.scroll_y > max_scroll_y {
-            self.scroll_y = max_scroll_y;
-        }
-        self.scroll_state_y =
-            self.scroll_state_y.content_length(max_scroll_y).position(self.scroll_y);
-
-        let mut line_l = Line::default();
-        line_l
-            .spans
-            .push(Span::styled(self.symbol_name.clone(), Style::new().fg(Color::White).bold()));
-        f.render_widget(line_l, header_chunks[0]);
-
-        let mut line_r = Line::default();
-        if let Some(percent) = get_symbol_diff(self.diff_result.right.as_ref(), self.right_sym)
-            .and_then(|s| s.match_percent)
-        {
-            line_r.spans.push(Span::styled(
-                format!("{:.2}% ", percent),
-                Style::new().fg(match_percent_color(percent)),
-            ));
-        }
-        let reload_time = self
-            .reload_time
-            .as_ref()
-            .and_then(|t| t.format(&self.time_format).ok())
-            .unwrap_or_else(|| "N/A".to_string());
-        line_r.spans.push(Span::styled(
-            format!("Last reload: {}", reload_time),
-            Style::new().fg(Color::White),
-        ));
-        f.render_widget(line_r, header_chunks[2]);
-
-        let mut left_text = None;
-        let mut left_highlight = None;
-        let mut max_width = 0;
-        if let (Some(symbol), Some(symbol_diff)) = (
-            get_symbol(self.left_obj.as_ref(), self.left_sym),
-            get_symbol_diff(self.diff_result.left.as_ref(), self.left_sym),
-        ) {
-            let mut text = Text::default();
-            let rect = content_chunks[0].inner(Margin::new(0, 1));
-            left_highlight = self.print_sym(
-                &mut text,
-                symbol,
-                symbol_diff,
-                rect,
-                &self.left_highlight,
-                result,
-                false,
-            );
-            max_width = max_width.max(text.width());
-            left_text = Some(text);
-        }
-
-        let mut right_text = None;
-        let mut right_highlight = None;
-        let mut margin_text = None;
-        if let (Some(symbol), Some(symbol_diff)) = (
-            get_symbol(self.right_obj.as_ref(), self.right_sym),
-            get_symbol_diff(self.diff_result.right.as_ref(), self.right_sym),
-        ) {
-            let mut text = Text::default();
-            let rect = content_chunks[2].inner(Margin::new(0, 1));
-            right_highlight = self.print_sym(
-                &mut text,
-                symbol,
-                symbol_diff,
-                rect,
-                &self.right_highlight,
-                result,
-                false,
-            );
-            max_width = max_width.max(text.width());
-            right_text = Some(text);
-
-            // Render margin
-            let mut text = Text::default();
-            let rect = content_chunks[1].inner(Margin::new(1, 1));
-            self.print_margin(&mut text, symbol_diff, rect);
-            margin_text = Some(text);
-        }
-
-        let mut prev_text = None;
-        let mut prev_margin_text = None;
-        if self.three_way {
-            if let (Some(symbol), Some(symbol_diff)) = (
-                get_symbol(self.prev_obj.as_ref(), self.prev_sym),
-                get_symbol_diff(self.diff_result.prev.as_ref(), self.prev_sym),
-            ) {
-                let mut text = Text::default();
-                let rect = content_chunks[4].inner(Margin::new(0, 1));
-                self.print_sym(
-                    &mut text,
-                    symbol,
-                    symbol_diff,
-                    rect,
-                    &self.right_highlight,
-                    result,
-                    true,
-                );
-                max_width = max_width.max(text.width());
-                prev_text = Some(text);
-
-                // Render margin
-                let mut text = Text::default();
-                let rect = content_chunks[3].inner(Margin::new(1, 1));
-                self.print_margin(&mut text, symbol_diff, rect);
-                prev_margin_text = Some(text);
-            }
-        }
-
-        let max_scroll_x =
-            max_width.saturating_sub(content_chunks[0].width.min(content_chunks[2].width) as usize);
-        if self.scroll_x > max_scroll_x {
-            self.scroll_x = max_scroll_x;
-        }
-        self.scroll_state_x =
-            self.scroll_state_x.content_length(max_scroll_x).position(self.scroll_x);
-
-        if let Some(text) = left_text {
-            // Render left column
-            f.render_widget(
-                Paragraph::new(text)
-                    .block(
-                        Block::new()
-                            .borders(Borders::TOP)
-                            .border_style(Style::new().fg(Color::Gray))
-                            .title_style(Style::new().bold())
-                            .title("TARGET"),
-                    )
-                    .scroll((0, self.scroll_x as u16)),
-                content_chunks[0],
-            );
-        }
-        if let Some(text) = margin_text {
-            f.render_widget(text, content_chunks[1].inner(Margin::new(1, 1)));
-        }
-        if let Some(text) = right_text {
-            f.render_widget(
-                Paragraph::new(text)
-                    .block(
-                        Block::new()
-                            .borders(Borders::TOP)
-                            .border_style(Style::new().fg(Color::Gray))
-                            .title_style(Style::new().bold())
-                            .title("CURRENT"),
-                    )
-                    .scroll((0, self.scroll_x as u16)),
-                content_chunks[2],
-            );
-        }
-
-        if self.three_way {
-            if let Some(text) = prev_margin_text {
-                f.render_widget(text, content_chunks[3].inner(Margin::new(1, 1)));
-            }
-            let block = Block::new()
-                .borders(Borders::TOP)
-                .border_style(Style::new().fg(Color::Gray))
-                .title_style(Style::new().bold())
-                .title("SAVED");
-            if let Some(text) = prev_text {
-                f.render_widget(
-                    Paragraph::new(text).block(block.clone()).scroll((0, self.scroll_x as u16)),
-                    content_chunks[4],
-                );
-            } else {
-                f.render_widget(block, content_chunks[4]);
-            }
-        }
-
-        // Render scrollbars
-        f.render_stateful_widget(
-            Scrollbar::new(ScrollbarOrientation::VerticalRight).begin_symbol(None).end_symbol(None),
-            chunks[1].inner(Margin::new(0, 1)),
-            &mut self.scroll_state_y,
-        );
-        f.render_stateful_widget(
-            Scrollbar::new(ScrollbarOrientation::HorizontalBottom).thumb_symbol("■"),
-            content_chunks[0],
-            &mut self.scroll_state_x,
-        );
-        f.render_stateful_widget(
-            Scrollbar::new(ScrollbarOrientation::HorizontalBottom).thumb_symbol("■"),
-            content_chunks[2],
-            &mut self.scroll_state_x,
-        );
-        if self.three_way {
-            f.render_stateful_widget(
-                Scrollbar::new(ScrollbarOrientation::HorizontalBottom).thumb_symbol("■"),
-                content_chunks[4],
-                &mut self.scroll_state_x,
-            );
-        }
-
-        if let Some(new_highlight) = left_highlight {
-            if new_highlight == self.left_highlight {
-                if self.left_highlight != self.right_highlight {
-                    self.right_highlight = self.left_highlight.clone();
-                } else {
-                    self.left_highlight = HighlightKind::None;
-                    self.right_highlight = HighlightKind::None;
-                }
-            } else {
-                self.left_highlight = new_highlight;
-            }
-            result.redraw = true;
-        } else if let Some(new_highlight) = right_highlight {
-            if new_highlight == self.right_highlight {
-                if self.left_highlight != self.right_highlight {
-                    self.left_highlight = self.right_highlight.clone();
-                } else {
-                    self.left_highlight = HighlightKind::None;
-                    self.right_highlight = HighlightKind::None;
-                }
-            } else {
-                self.right_highlight = new_highlight;
-            }
-            result.redraw = true;
-        }
-    }
-
-    fn draw_options(&mut self, f: &mut Frame, _result: &mut EventResult) {
-        let percent_x = 50;
-        let percent_y = 50;
-        let popup_rect = Layout::vertical([
-            Constraint::Percentage((100 - percent_y) / 2),
-            Constraint::Percentage(percent_y),
-            Constraint::Percentage((100 - percent_y) / 2),
-        ])
-        .split(f.area())[1];
-        let popup_rect = Layout::horizontal([
-            Constraint::Percentage((100 - percent_x) / 2),
-            Constraint::Percentage(percent_x),
-            Constraint::Percentage((100 - percent_x) / 2),
-        ])
-        .split(popup_rect)[1];
-
-        let popup = Block::default()
-            .borders(Borders::ALL)
-            .title("Options")
-            .title_style(Style::default().fg(Color::White).bg(Color::Black));
-        f.render_widget(Clear, popup_rect);
-        f.render_widget(popup, popup_rect);
-    }
-
-    fn handle_event(&mut self, event: Event) -> EventControlFlow {
-        let mut result = EventResult::default();
-        match event {
-            Event::Key(event)
-                if matches!(event.kind, KeyEventKind::Press | KeyEventKind::Repeat) =>
-            {
-                match event.code {
-                    // Quit
-                    KeyCode::Esc | KeyCode::Char('q') => return EventControlFlow::Break,
-                    // Page up
-                    KeyCode::PageUp => {
-                        self.page_up(false);
-                        result.redraw = true;
-                    }
-                    // Page up (shift + space)
-                    KeyCode::Char(' ') if event.modifiers.contains(KeyModifiers::SHIFT) => {
-                        self.page_up(false);
-                        result.redraw = true;
-                    }
-                    // Page down
-                    KeyCode::Char(' ') | KeyCode::PageDown => {
-                        self.page_down(false);
-                        result.redraw = true;
-                    }
-                    // Page down (ctrl + f)
-                    KeyCode::Char('f') if event.modifiers.contains(KeyModifiers::CONTROL) => {
-                        self.page_down(false);
-                        result.redraw = true;
-                    }
-                    // Page up (ctrl + b)
-                    KeyCode::Char('b') if event.modifiers.contains(KeyModifiers::CONTROL) => {
-                        self.page_up(false);
-                        result.redraw = true;
-                    }
-                    // Half page down (ctrl + d)
-                    KeyCode::Char('d') if event.modifiers.contains(KeyModifiers::CONTROL) => {
-                        self.page_down(true);
-                        result.redraw = true;
-                    }
-                    // Half page up (ctrl + u)
-                    KeyCode::Char('u') if event.modifiers.contains(KeyModifiers::CONTROL) => {
-                        self.page_up(true);
-                        result.redraw = true;
-                    }
-                    // Scroll down
-                    KeyCode::Down | KeyCode::Char('j') => {
-                        self.scroll_y += 1;
-                        result.redraw = true;
-                    }
-                    // Scroll up
-                    KeyCode::Up | KeyCode::Char('k') => {
-                        self.scroll_y = self.scroll_y.saturating_sub(1);
-                        result.redraw = true;
-                    }
-                    // Scroll to start
-                    KeyCode::Char('g') => {
-                        self.scroll_y = 0;
-                        result.redraw = true;
-                    }
-                    // Scroll to end
-                    KeyCode::Char('G') => {
-                        self.scroll_y = self.num_rows;
-                        result.redraw = true;
-                    }
-                    // Reload
-                    KeyCode::Char('r') => {
-                        result.redraw = true;
-                        return EventControlFlow::Reload;
-                    }
-                    // Scroll right
-                    KeyCode::Right | KeyCode::Char('l') => {
-                        self.scroll_x += 1;
-                        result.redraw = true;
-                    }
-                    // Scroll left
-                    KeyCode::Left | KeyCode::Char('h') => {
-                        self.scroll_x = self.scroll_x.saturating_sub(1);
-                        result.redraw = true;
-                    }
-                    // Toggle relax relocation diffs
-                    KeyCode::Char('x') => {
-                        self.relax_reloc_diffs = !self.relax_reloc_diffs;
-                        result.redraw = true;
-                        return EventControlFlow::Reload;
-                    }
-                    // Toggle three-way diff
-                    KeyCode::Char('3') => {
-                        self.three_way = !self.three_way;
-                        result.redraw = true;
-                    }
-                    // Toggle options
-                    KeyCode::Char('o') => {
-                        self.open_options = !self.open_options;
-                        result.redraw = true;
-                    }
-                    _ => {}
-                }
-            }
-            Event::Mouse(event) => match event.kind {
-                MouseEventKind::ScrollDown => {
-                    self.scroll_y += 3;
-                    result.redraw = true;
-                }
-                MouseEventKind::ScrollUp => {
-                    self.scroll_y = self.scroll_y.saturating_sub(3);
-                    result.redraw = true;
-                }
-                MouseEventKind::ScrollRight => {
-                    self.scroll_x += 3;
-                    result.redraw = true;
-                }
-                MouseEventKind::ScrollLeft => {
-                    self.scroll_x = self.scroll_x.saturating_sub(3);
-                    result.redraw = true;
-                }
-                MouseEventKind::Down(MouseButton::Left) => {
-                    result.click_xy = Some((event.column, event.row));
-                    result.redraw = true;
-                }
-                _ => {}
-            },
-            Event::Resize(_, _) => {
-                result.redraw = true;
-            }
-            _ => {}
-        }
-        EventControlFlow::Continue(result)
-    }
-
-    fn page_up(&mut self, half: bool) {
-        self.scroll_y = self.scroll_y.saturating_sub(self.per_page / if half { 2 } else { 1 });
-    }
-
-    fn page_down(&mut self, half: bool) {
-        self.scroll_y += self.per_page / if half { 2 } else { 1 };
-    }
-
-    #[expect(clippy::too_many_arguments)]
-    fn print_sym(
-        &self,
-        out: &mut Text<'static>,
-        symbol: &ObjSymbol,
-        symbol_diff: &ObjSymbolDiff,
-        rect: Rect,
-        highlight: &HighlightKind,
-        result: &EventResult,
-        only_changed: bool,
-    ) -> Option<HighlightKind> {
-        let base_addr = symbol.address;
-        let mut new_highlight = None;
-        for (y, ins_diff) in symbol_diff
-            .instructions
-            .iter()
-            .skip(self.scroll_y)
-            .take(rect.height as usize)
-            .enumerate()
-        {
-            if only_changed && ins_diff.kind == ObjInsDiffKind::None {
-                out.lines.push(Line::default());
-                continue;
-            }
-            let mut sx = rect.x;
-            let sy = rect.y + y as u16;
-            let mut line = Line::default();
-            display_diff(ins_diff, base_addr, |text| -> Result<()> {
-                let label_text;
-                let mut base_color = match ins_diff.kind {
-                    ObjInsDiffKind::None
-                    | ObjInsDiffKind::OpMismatch
-                    | ObjInsDiffKind::ArgMismatch => Color::Gray,
-                    ObjInsDiffKind::Replace => Color::Cyan,
-                    ObjInsDiffKind::Delete => Color::Red,
-                    ObjInsDiffKind::Insert => Color::Green,
-                };
-                let mut pad_to = 0;
-                match text {
-                    DiffText::Basic(text) => {
-                        label_text = text.to_string();
-                    }
-                    DiffText::BasicColor(s, idx) => {
-                        label_text = s.to_string();
-                        base_color = COLOR_ROTATION[idx % COLOR_ROTATION.len()];
-                    }
-                    DiffText::Line(num) => {
-                        label_text = format!("{num} ");
-                        base_color = Color::DarkGray;
-                        pad_to = 5;
-                    }
-                    DiffText::Address(addr) => {
-                        label_text = format!("{:x}:", addr);
-                        pad_to = 5;
-                    }
-                    DiffText::Opcode(mnemonic, _op) => {
-                        label_text = mnemonic.to_string();
-                        if ins_diff.kind == ObjInsDiffKind::OpMismatch {
-                            base_color = Color::Blue;
-                        }
-                        pad_to = 8;
-                    }
-                    DiffText::Argument(arg, diff) => {
-                        label_text = arg.to_string();
-                        if let Some(diff) = diff {
-                            base_color = COLOR_ROTATION[diff.idx % COLOR_ROTATION.len()]
-                        }
-                    }
-                    DiffText::BranchDest(addr, diff) => {
-                        label_text = format!("{addr:x}");
-                        if let Some(diff) = diff {
-                            base_color = COLOR_ROTATION[diff.idx % COLOR_ROTATION.len()]
-                        }
-                    }
-                    DiffText::Symbol(sym) => {
-                        let name = sym.demangled_name.as_ref().unwrap_or(&sym.name);
-                        label_text = name.clone();
-                        base_color = Color::White;
-                    }
-                    DiffText::Spacing(n) => {
-                        line.spans.push(Span::raw(" ".repeat(n)));
-                        sx += n as u16;
-                        return Ok(());
-                    }
-                    DiffText::Eol => {
-                        return Ok(());
-                    }
-                }
-                let len = label_text.len();
-                let highlighted = *highlight == text;
-                if let Some((cx, cy)) = result.click_xy {
-                    if cx >= sx && cx < sx + len as u16 && cy == sy {
-                        new_highlight = Some(text.into());
-                    }
-                }
-                let mut style = Style::new().fg(base_color);
-                if highlighted {
-                    style = style.bg(Color::DarkGray);
-                }
-                line.spans.push(Span::styled(label_text, style));
-                sx += len as u16;
-                if pad_to > len {
-                    let pad = (pad_to - len) as u16;
-                    line.spans.push(Span::raw(" ".repeat(pad as usize)));
-                    sx += pad;
-                }
-                Ok(())
-            })
-            .unwrap();
-            out.lines.push(line);
-        }
-        new_highlight
-    }
-
-    fn print_margin(&self, out: &mut Text, symbol: &ObjSymbolDiff, rect: Rect) {
-        for ins_diff in symbol.instructions.iter().skip(self.scroll_y).take(rect.height as usize) {
-            if ins_diff.kind != ObjInsDiffKind::None {
-                out.lines.push(Line::raw(match ins_diff.kind {
-                    ObjInsDiffKind::Delete => "<",
-                    ObjInsDiffKind::Insert => ">",
-                    _ => "|",
-                }));
-            } else {
-                out.lines.push(Line::raw(" "));
-            }
-        }
-    }
-
-    fn reload(&mut self) -> Result<()> {
-        let prev = self.right_obj.take();
-        let config = diff::DiffObjConfig {
-            relax_reloc_diffs: self.relax_reloc_diffs,
-            ..Default::default() // TODO
-        };
-        let target = self
-            .target_path
-            .as_deref()
-            .map(|p| {
-                obj::read::read(p, &config).with_context(|| format!("Loading {}", p.display()))
-            })
-            .transpose()?;
-        let base = self
-            .base_path
-            .as_deref()
-            .map(|p| {
-                obj::read::read(p, &config).with_context(|| format!("Loading {}", p.display()))
-            })
-            .transpose()?;
-        let result = diff::diff_objs(&config, target.as_ref(), base.as_ref(), prev.as_ref())?;
-
-        let left_sym = target.as_ref().and_then(|o| find_function(o, &self.symbol_name));
-        let right_sym = base.as_ref().and_then(|o| find_function(o, &self.symbol_name));
-        let prev_sym = prev.as_ref().and_then(|o| find_function(o, &self.symbol_name));
-        self.num_rows = match (
-            get_symbol_diff(result.left.as_ref(), left_sym),
-            get_symbol_diff(result.right.as_ref(), right_sym),
-        ) {
-            (Some(l), Some(r)) => l.instructions.len().max(r.instructions.len()),
-            (Some(l), None) => l.instructions.len(),
-            (None, Some(r)) => r.instructions.len(),
-            (None, None) => bail!("Symbol not found: {}", self.symbol_name),
-        };
-        self.left_obj = target;
-        self.right_obj = base;
-        self.prev_obj = prev;
-        self.diff_result = result;
-        self.left_sym = left_sym;
-        self.right_sym = right_sym;
-        self.prev_sym = prev_sym;
-        self.reload_time = time::OffsetDateTime::now_local().ok();
-        Ok(())
-    }
-}
-
-pub const COLOR_ROTATION: [Color; 7] = [
-    Color::Magenta,
-    Color::Cyan,
-    Color::Green,
-    Color::Red,
-    Color::Yellow,
-    Color::Blue,
-    Color::Green,
-];
-
-pub fn match_percent_color(match_percent: f32) -> Color {
-    if match_percent == 100.0 {
-        Color::Green
-    } else if match_percent >= 50.0 {
-        Color::LightBlue
-    } else {
-        Color::LightRed
-    }
-}

objdiff-cli/src/main.rs

@@ -1,6 +1,7 @@
 mod argp_version;
 mod cmd;
 mod util;
+mod views;
 
 // musl's allocator is very slow, so use mimalloc when targeting musl.
 // Otherwise, use the system allocator to avoid extra code size.

objdiff-cli/src/views/function_diff.rs

@@ -0,0 +1,652 @@
+use anyhow::{bail, Result};
+use crossterm::event::{Event, KeyCode, KeyEventKind, KeyModifiers, MouseButton, MouseEventKind};
+use objdiff_core::{
+    diff::{
+        display::{display_diff, DiffText, HighlightKind},
+        ObjDiff, ObjInsDiffKind, ObjSymbolDiff,
+    },
+    obj::{ObjInfo, ObjSectionKind, ObjSymbol, SymbolRef},
+};
+use ratatui::{
+    prelude::*,
+    widgets::{Block, Borders, Clear, Paragraph, Scrollbar, ScrollbarOrientation, ScrollbarState},
+    Frame,
+};
+
+use super::{EventControlFlow, EventResult, UiView};
+use crate::cmd::diff::AppState;
+
+#[allow(dead_code)]
+#[derive(Default)]
+pub struct FunctionDiffUi {
+    pub symbol_name: String,
+    pub left_highlight: HighlightKind,
+    pub right_highlight: HighlightKind,
+    pub scroll_x: usize,
+    pub scroll_state_x: ScrollbarState,
+    pub scroll_y: usize,
+    pub scroll_state_y: ScrollbarState,
+    pub per_page: usize,
+    pub num_rows: usize,
+    pub left_sym: Option<SymbolRef>,
+    pub right_sym: Option<SymbolRef>,
+    pub prev_sym: Option<SymbolRef>,
+    pub open_options: bool,
+    pub three_way: bool,
+}
+
+impl UiView for FunctionDiffUi {
+    fn draw(&mut self, state: &AppState, f: &mut Frame, result: &mut EventResult) {
+        let chunks = Layout::vertical([Constraint::Length(1), Constraint::Fill(1)]).split(f.area());
+        let header_chunks = Layout::horizontal([
+            Constraint::Fill(1),
+            Constraint::Length(3),
+            Constraint::Fill(1),
+            Constraint::Length(2),
+        ])
+        .split(chunks[0]);
+        let content_chunks = if self.three_way {
+            Layout::horizontal([
+                Constraint::Fill(1),
+                Constraint::Length(3),
+                Constraint::Fill(1),
+                Constraint::Length(3),
+                Constraint::Fill(1),
+                Constraint::Length(2),
+            ])
+            .split(chunks[1])
+        } else {
+            Layout::horizontal([
+                Constraint::Fill(1),
+                Constraint::Length(3),
+                Constraint::Fill(1),
+                Constraint::Length(2),
+            ])
+            .split(chunks[1])
+        };
+
+        self.per_page = chunks[1].height.saturating_sub(2) as usize;
+        let max_scroll_y = self.num_rows.saturating_sub(self.per_page);
+        if self.scroll_y > max_scroll_y {
+            self.scroll_y = max_scroll_y;
+        }
+        self.scroll_state_y =
+            self.scroll_state_y.content_length(max_scroll_y).position(self.scroll_y);
+
+        let mut line_l = Line::default();
+        line_l
+            .spans
+            .push(Span::styled(self.symbol_name.clone(), Style::new().fg(Color::White).bold()));
+        f.render_widget(line_l, header_chunks[0]);
+
+        let mut line_r = Line::default();
+        if let Some(percent) =
+            get_symbol(state.right_obj.as_ref(), self.right_sym).and_then(|(_, d)| d.match_percent)
+        {
+            line_r.spans.push(Span::styled(
+                format!("{:.2}% ", percent),
+                Style::new().fg(match_percent_color(percent)),
+            ));
+        }
+        let reload_time = state
+            .reload_time
+            .as_ref()
+            .and_then(|t| t.format(&state.time_format).ok())
+            .unwrap_or_else(|| "N/A".to_string());
+        line_r.spans.push(Span::styled(
+            format!("Last reload: {}", reload_time),
+            Style::new().fg(Color::White),
+        ));
+        line_r.spans.push(Span::styled(
+            format!(" ({} jobs)", state.jobs.jobs.len()),
+            Style::new().fg(Color::LightYellow),
+        ));
+        f.render_widget(line_r, header_chunks[2]);
+
+        let mut left_text = None;
+        let mut left_highlight = None;
+        let mut max_width = 0;
+        if let Some((symbol, symbol_diff)) = get_symbol(state.left_obj.as_ref(), self.left_sym) {
+            let mut text = Text::default();
+            let rect = content_chunks[0].inner(Margin::new(0, 1));
+            left_highlight = self.print_sym(
+                &mut text,
+                symbol,
+                symbol_diff,
+                rect,
+                &self.left_highlight,
+                result,
+                false,
+            );
+            max_width = max_width.max(text.width());
+            left_text = Some(text);
+        }
+
+        let mut right_text = None;
+        let mut right_highlight = None;
+        let mut margin_text = None;
+        if let Some((symbol, symbol_diff)) = get_symbol(state.right_obj.as_ref(), self.right_sym) {
+            let mut text = Text::default();
+            let rect = content_chunks[2].inner(Margin::new(0, 1));
+            right_highlight = self.print_sym(
+                &mut text,
+                symbol,
+                symbol_diff,
+                rect,
+                &self.right_highlight,
+                result,
+                false,
+            );
+            max_width = max_width.max(text.width());
+            right_text = Some(text);
+
+            // Render margin
+            let mut text = Text::default();
+            let rect = content_chunks[1].inner(Margin::new(1, 1));
+            self.print_margin(&mut text, symbol_diff, rect);
+            margin_text = Some(text);
+        }
+
+        let mut prev_text = None;
+        let mut prev_margin_text = None;
+        if self.three_way {
+            if let Some((symbol, symbol_diff)) = get_symbol(state.prev_obj.as_ref(), self.prev_sym)
+            {
+                let mut text = Text::default();
+                let rect = content_chunks[4].inner(Margin::new(0, 1));
+                self.print_sym(
+                    &mut text,
+                    symbol,
+                    symbol_diff,
+                    rect,
+                    &self.right_highlight,
+                    result,
+                    true,
+                );
+                max_width = max_width.max(text.width());
+                prev_text = Some(text);
+
+                // Render margin
+                let mut text = Text::default();
+                let rect = content_chunks[3].inner(Margin::new(1, 1));
+                self.print_margin(&mut text, symbol_diff, rect);
+                prev_margin_text = Some(text);
+            }
+        }
+
+        let max_scroll_x =
+            max_width.saturating_sub(content_chunks[0].width.min(content_chunks[2].width) as usize);
+        if self.scroll_x > max_scroll_x {
+            self.scroll_x = max_scroll_x;
+        }
+        self.scroll_state_x =
+            self.scroll_state_x.content_length(max_scroll_x).position(self.scroll_x);
+
+        if let Some(text) = left_text {
+            // Render left column
+            f.render_widget(
+                Paragraph::new(text)
+                    .block(
+                        Block::new()
+                            .borders(Borders::TOP)
+                            .border_style(Style::new().fg(Color::Gray))
+                            .title_style(Style::new().bold())
+                            .title("TARGET"),
+                    )
+                    .scroll((0, self.scroll_x as u16)),
+                content_chunks[0],
+            );
+        }
+        if let Some(text) = margin_text {
+            f.render_widget(text, content_chunks[1].inner(Margin::new(1, 1)));
+        }
+        if let Some(text) = right_text {
+            f.render_widget(
+                Paragraph::new(text)
+                    .block(
+                        Block::new()
+                            .borders(Borders::TOP)
+                            .border_style(Style::new().fg(Color::Gray))
+                            .title_style(Style::new().bold())
+                            .title("CURRENT"),
+                    )
+                    .scroll((0, self.scroll_x as u16)),
+                content_chunks[2],
+            );
+        }
+
+        if self.three_way {
+            if let Some(text) = prev_margin_text {
+                f.render_widget(text, content_chunks[3].inner(Margin::new(1, 1)));
+            }
+            let block = Block::new()
+                .borders(Borders::TOP)
+                .border_style(Style::new().fg(Color::Gray))
+                .title_style(Style::new().bold())
+                .title("SAVED");
+            if let Some(text) = prev_text {
+                f.render_widget(
+                    Paragraph::new(text).block(block.clone()).scroll((0, self.scroll_x as u16)),
+                    content_chunks[4],
+                );
+            } else {
+                f.render_widget(block, content_chunks[4]);
+            }
+        }
+
+        // Render scrollbars
+        f.render_stateful_widget(
+            Scrollbar::new(ScrollbarOrientation::VerticalRight).begin_symbol(None).end_symbol(None),
+            chunks[1].inner(Margin::new(0, 1)),
+            &mut self.scroll_state_y,
+        );
+        f.render_stateful_widget(
+            Scrollbar::new(ScrollbarOrientation::HorizontalBottom).thumb_symbol("■"),
+            content_chunks[0],
+            &mut self.scroll_state_x,
+        );
+        f.render_stateful_widget(
+            Scrollbar::new(ScrollbarOrientation::HorizontalBottom).thumb_symbol("■"),
+            content_chunks[2],
+            &mut self.scroll_state_x,
+        );
+        if self.three_way {
+            f.render_stateful_widget(
+                Scrollbar::new(ScrollbarOrientation::HorizontalBottom).thumb_symbol("■"),
+                content_chunks[4],
+                &mut self.scroll_state_x,
+            );
+        }
+
+        if let Some(new_highlight) = left_highlight {
+            if new_highlight == self.left_highlight {
+                if self.left_highlight != self.right_highlight {
+                    self.right_highlight = self.left_highlight.clone();
+                } else {
+                    self.left_highlight = HighlightKind::None;
+                    self.right_highlight = HighlightKind::None;
+                }
+            } else {
+                self.left_highlight = new_highlight;
+            }
+            result.redraw = true;
+        } else if let Some(new_highlight) = right_highlight {
+            if new_highlight == self.right_highlight {
+                if self.left_highlight != self.right_highlight {
+                    self.left_highlight = self.right_highlight.clone();
+                } else {
+                    self.left_highlight = HighlightKind::None;
+                    self.right_highlight = HighlightKind::None;
+                }
+            } else {
+                self.right_highlight = new_highlight;
+            }
+            result.redraw = true;
+        }
+
+        if self.open_options {
+            self.draw_options(f, result);
+        }
+    }
+
+    fn handle_event(&mut self, state: &mut AppState, event: Event) -> EventControlFlow {
+        let mut result = EventResult::default();
+        match event {
+            Event::Key(event)
+                if matches!(event.kind, KeyEventKind::Press | KeyEventKind::Repeat) =>
+            {
+                match event.code {
+                    // Quit
+                    KeyCode::Esc | KeyCode::Char('q') => return EventControlFlow::Break,
+                    // Page up
+                    KeyCode::PageUp => {
+                        self.page_up(false);
+                        result.redraw = true;
+                    }
+                    // Page up (shift + space)
+                    KeyCode::Char(' ') if event.modifiers.contains(KeyModifiers::SHIFT) => {
+                        self.page_up(false);
+                        result.redraw = true;
+                    }
+                    // Page down
+                    KeyCode::Char(' ') | KeyCode::PageDown => {
+                        self.page_down(false);
+                        result.redraw = true;
+                    }
+                    // Page down (ctrl + f)
+                    KeyCode::Char('f') if event.modifiers.contains(KeyModifiers::CONTROL) => {
+                        self.page_down(false);
+                        result.redraw = true;
+                    }
+                    // Page up (ctrl + b)
+                    KeyCode::Char('b') if event.modifiers.contains(KeyModifiers::CONTROL) => {
+                        self.page_up(false);
+                        result.redraw = true;
+                    }
+                    // Half page down (ctrl + d)
+                    KeyCode::Char('d') if event.modifiers.contains(KeyModifiers::CONTROL) => {
+                        self.page_down(true);
+                        result.redraw = true;
+                    }
+                    // Half page up (ctrl + u)
+                    KeyCode::Char('u') if event.modifiers.contains(KeyModifiers::CONTROL) => {
+                        self.page_up(true);
+                        result.redraw = true;
+                    }
+                    // Scroll down
+                    KeyCode::Down | KeyCode::Char('j') => {
+                        self.scroll_y += 1;
+                        result.redraw = true;
+                    }
+                    // Scroll up
+                    KeyCode::Up | KeyCode::Char('k') => {
+                        self.scroll_y = self.scroll_y.saturating_sub(1);
+                        result.redraw = true;
+                    }
+                    // Scroll to start
+                    KeyCode::Char('g') => {
+                        self.scroll_y = 0;
+                        result.redraw = true;
+                    }
+                    // Scroll to end
+                    KeyCode::Char('G') => {
+                        self.scroll_y = self.num_rows;
+                        result.redraw = true;
+                    }
+                    // Reload
+                    KeyCode::Char('r') => {
+                        result.redraw = true;
+                        return EventControlFlow::Reload;
+                    }
+                    // Scroll right
+                    KeyCode::Right | KeyCode::Char('l') => {
+                        self.scroll_x += 1;
+                        result.redraw = true;
+                    }
+                    // Scroll left
+                    KeyCode::Left | KeyCode::Char('h') => {
+                        self.scroll_x = self.scroll_x.saturating_sub(1);
+                        result.redraw = true;
+                    }
+                    // Toggle relax relocation diffs
+                    KeyCode::Char('x') => {
+                        state.relax_reloc_diffs = !state.relax_reloc_diffs;
+                        result.redraw = true;
+                        return EventControlFlow::Reload;
+                    }
+                    // Toggle three-way diff
+                    KeyCode::Char('3') => {
+                        self.three_way = !self.three_way;
+                        result.redraw = true;
+                    }
+                    // Toggle options
+                    KeyCode::Char('o') => {
+                        self.open_options = !self.open_options;
+                        result.redraw = true;
+                    }
+                    _ => {}
+                }
+            }
+            Event::Mouse(event) => match event.kind {
+                MouseEventKind::ScrollDown => {
+                    self.scroll_y += 3;
+                    result.redraw = true;
+                }
+                MouseEventKind::ScrollUp => {
+                    self.scroll_y = self.scroll_y.saturating_sub(3);
+                    result.redraw = true;
+                }
+                MouseEventKind::ScrollRight => {
+                    self.scroll_x += 3;
+                    result.redraw = true;
+                }
+                MouseEventKind::ScrollLeft => {
+                    self.scroll_x = self.scroll_x.saturating_sub(3);
+                    result.redraw = true;
+                }
+                MouseEventKind::Down(MouseButton::Left) => {
+                    result.click_xy = Some((event.column, event.row));
+                    result.redraw = true;
+                }
+                _ => {}
+            },
+            Event::Resize(_, _) => {
+                result.redraw = true;
+            }
+            _ => {}
+        }
+        EventControlFlow::Continue(result)
+    }
+
+    fn reload(&mut self, state: &AppState) -> Result<()> {
+        let left_sym =
+            state.left_obj.as_ref().and_then(|(o, _)| find_function(o, &self.symbol_name));
+        let right_sym =
+            state.right_obj.as_ref().and_then(|(o, _)| find_function(o, &self.symbol_name));
+        let prev_sym =
+            state.prev_obj.as_ref().and_then(|(o, _)| find_function(o, &self.symbol_name));
+        self.num_rows = match (
+            get_symbol(state.left_obj.as_ref(), left_sym),
+            get_symbol(state.right_obj.as_ref(), right_sym),
+        ) {
+            (Some((_l, ld)), Some((_r, rd))) => ld.instructions.len().max(rd.instructions.len()),
+            (Some((_l, ld)), None) => ld.instructions.len(),
+            (None, Some((_r, rd))) => rd.instructions.len(),
+            (None, None) => bail!("Symbol not found: {}", self.symbol_name),
+        };
+        self.left_sym = left_sym;
+        self.right_sym = right_sym;
+        self.prev_sym = prev_sym;
+        Ok(())
+    }
+}
+
+impl FunctionDiffUi {
+    pub fn draw_options(&mut self, f: &mut Frame, _result: &mut EventResult) {
+        let percent_x = 50;
+        let percent_y = 50;
+        let popup_rect = Layout::vertical([
+            Constraint::Percentage((100 - percent_y) / 2),
+            Constraint::Percentage(percent_y),
+            Constraint::Percentage((100 - percent_y) / 2),
+        ])
+        .split(f.area())[1];
+        let popup_rect = Layout::horizontal([
+            Constraint::Percentage((100 - percent_x) / 2),
+            Constraint::Percentage(percent_x),
+            Constraint::Percentage((100 - percent_x) / 2),
+        ])
+        .split(popup_rect)[1];
+
+        let popup = Block::default()
+            .borders(Borders::ALL)
+            .title("Options")
+            .title_style(Style::default().fg(Color::White).bg(Color::Black));
+        f.render_widget(Clear, popup_rect);
+        f.render_widget(popup, popup_rect);
+    }
+
+    fn page_up(&mut self, half: bool) {
+        self.scroll_y = self.scroll_y.saturating_sub(self.per_page / if half { 2 } else { 1 });
+    }
+
+    fn page_down(&mut self, half: bool) {
+        self.scroll_y += self.per_page / if half { 2 } else { 1 };
+    }
+
+    #[allow(clippy::too_many_arguments)]
+    fn print_sym(
+        &self,
+        out: &mut Text<'static>,
+        symbol: &ObjSymbol,
+        symbol_diff: &ObjSymbolDiff,
+        rect: Rect,
+        highlight: &HighlightKind,
+        result: &EventResult,
+        only_changed: bool,
+    ) -> Option<HighlightKind> {
+        let base_addr = symbol.address;
+        let mut new_highlight = None;
+        for (y, ins_diff) in symbol_diff
+            .instructions
+            .iter()
+            .skip(self.scroll_y)
+            .take(rect.height as usize)
+            .enumerate()
+        {
+            if only_changed && ins_diff.kind == ObjInsDiffKind::None {
+                out.lines.push(Line::default());
+                continue;
+            }
+            let mut sx = rect.x;
+            let sy = rect.y + y as u16;
+            let mut line = Line::default();
+            display_diff(ins_diff, base_addr, |text| -> Result<()> {
+                let label_text;
+                let mut base_color = match ins_diff.kind {
+                    ObjInsDiffKind::None
+                    | ObjInsDiffKind::OpMismatch
+                    | ObjInsDiffKind::ArgMismatch => Color::Gray,
+                    ObjInsDiffKind::Replace => Color::Cyan,
+                    ObjInsDiffKind::Delete => Color::Red,
+                    ObjInsDiffKind::Insert => Color::Green,
+                };
+                let mut pad_to = 0;
+                match text {
+                    DiffText::Basic(text) => {
+                        label_text = text.to_string();
+                    }
+                    DiffText::BasicColor(s, idx) => {
+                        label_text = s.to_string();
+                        base_color = COLOR_ROTATION[idx % COLOR_ROTATION.len()];
+                    }
+                    DiffText::Line(num) => {
+                        label_text = format!("{num} ");
+                        base_color = Color::DarkGray;
+                        pad_to = 5;
+                    }
+                    DiffText::Address(addr) => {
+                        label_text = format!("{:x}:", addr);
+                        pad_to = 5;
+                    }
+                    DiffText::Opcode(mnemonic, _op) => {
+                        label_text = mnemonic.to_string();
+                        if ins_diff.kind == ObjInsDiffKind::OpMismatch {
+                            base_color = Color::Blue;
+                        }
+                        pad_to = 8;
+                    }
+                    DiffText::Argument(arg, diff) => {
+                        label_text = arg.to_string();
+                        if let Some(diff) = diff {
+                            base_color = COLOR_ROTATION[diff.idx % COLOR_ROTATION.len()]
+                        }
+                    }
+                    DiffText::BranchDest(addr, diff) => {
+                        label_text = format!("{addr:x}");
+                        if let Some(diff) = diff {
+                            base_color = COLOR_ROTATION[diff.idx % COLOR_ROTATION.len()]
+                        }
+                    }
+                    DiffText::Symbol(sym, diff) => {
+                        let name = sym.demangled_name.as_ref().unwrap_or(&sym.name);
+                        label_text = name.clone();
+                        if let Some(diff) = diff {
+                            base_color = COLOR_ROTATION[diff.idx % COLOR_ROTATION.len()]
+                        } else {
+                            base_color = Color::White;
+                        }
+                    }
+                    DiffText::Spacing(n) => {
+                        line.spans.push(Span::raw(" ".repeat(n)));
+                        sx += n as u16;
+                        return Ok(());
+                    }
+                    DiffText::Eol => {
+                        return Ok(());
+                    }
+                }
+                let len = label_text.len();
+                let highlighted = *highlight == text;
+                if let Some((cx, cy)) = result.click_xy {
+                    if cx >= sx && cx < sx + len as u16 && cy == sy {
+                        new_highlight = Some(text.into());
+                    }
+                }
+                let mut style = Style::new().fg(base_color);
+                if highlighted {
+                    style = style.bg(Color::DarkGray);
+                }
+                line.spans.push(Span::styled(label_text, style));
+                sx += len as u16;
+                if pad_to > len {
+                    let pad = (pad_to - len) as u16;
+                    line.spans.push(Span::raw(" ".repeat(pad as usize)));
+                    sx += pad;
+                }
+                Ok(())
+            })
+            .unwrap();
+            out.lines.push(line);
+        }
+        new_highlight
+    }
+
+    fn print_margin(&self, out: &mut Text, symbol: &ObjSymbolDiff, rect: Rect) {
+        for ins_diff in symbol.instructions.iter().skip(self.scroll_y).take(rect.height as usize) {
+            if ins_diff.kind != ObjInsDiffKind::None {
+                out.lines.push(Line::raw(match ins_diff.kind {
+                    ObjInsDiffKind::Delete => "<",
+                    ObjInsDiffKind::Insert => ">",
+                    _ => "|",
+                }));
+            } else {
+                out.lines.push(Line::raw(" "));
+            }
+        }
+    }
+}
+
+pub const COLOR_ROTATION: [Color; 7] = [
+    Color::Magenta,
+    Color::Cyan,
+    Color::Green,
+    Color::Red,
+    Color::Yellow,
+    Color::Blue,
+    Color::Green,
+];
+
+pub fn match_percent_color(match_percent: f32) -> Color {
+    if match_percent == 100.0 {
+        Color::Green
+    } else if match_percent >= 50.0 {
+        Color::LightBlue
+    } else {
+        Color::LightRed
+    }
+}
+
+#[inline]
+fn get_symbol(
+    obj: Option<&(ObjInfo, ObjDiff)>,
+    sym: Option<SymbolRef>,
+) -> Option<(&ObjSymbol, &ObjSymbolDiff)> {
+    let (obj, diff) = obj?;
+    let sym = sym?;
+    Some((obj.section_symbol(sym).1, diff.symbol_diff(sym)))
+}
+
+fn find_function(obj: &ObjInfo, name: &str) -> Option<SymbolRef> {
+    for (section_idx, section) in obj.sections.iter().enumerate() {
+        if section.kind != ObjSectionKind::Code {
+            continue;
+        }
+        for (symbol_idx, symbol) in section.symbols.iter().enumerate() {
+            if symbol.name == name {
+                return Some(SymbolRef { section_idx, symbol_idx });
+            }
+        }
+    }
+    None
+}

objdiff-cli/src/views/mod.rs

@@ -0,0 +1,25 @@
+use anyhow::Result;
+use crossterm::event::Event;
+use ratatui::Frame;
+
+use crate::cmd::diff::AppState;
+
+pub mod function_diff;
+
+#[derive(Default)]
+pub struct EventResult {
+    pub redraw: bool,
+    pub click_xy: Option<(u16, u16)>,
+}
+
+pub enum EventControlFlow {
+    Break,
+    Continue(EventResult),
+    Reload,
+}
+
+pub trait UiView {
+    fn draw(&mut self, state: &AppState, f: &mut Frame, result: &mut EventResult);
+    fn handle_event(&mut self, state: &mut AppState, event: Event) -> EventControlFlow;
+    fn reload(&mut self, state: &AppState) -> Result<()>;
+}

objdiff-core/Cargo.toml

@@ -16,15 +16,17 @@ documentation = "https://docs.rs/objdiff-core"
 crate-type = ["cdylib", "rlib"]
 
 [features]
-all = ["config", "dwarf", "mips", "ppc", "x86", "arm", "bindings"]
+all = ["config", "dwarf", "mips", "ppc", "x86", "arm", "arm64", "bindings", "build"]
 any-arch = ["config", "dep:bimap", "dep:strum", "dep:similar", "dep:flagset", "dep:log", "dep:memmap2", "dep:byteorder", "dep:num-traits"] # Implicit, used to check if any arch is enabled
+bindings = ["dep:serde_json", "dep:prost", "dep:pbjson", "dep:serde", "dep:prost-build", "dep:pbjson-build"]
+build = ["dep:shell-escape", "dep:path-slash", "dep:winapi", "dep:notify", "dep:notify-debouncer-full", "dep:reqwest", "dep:self_update", "dep:tempfile", "dep:time"]
 config = ["dep:bimap", "dep:globset", "dep:semver", "dep:serde_json", "dep:serde_yaml", "dep:serde", "dep:filetime"]
 dwarf = ["dep:gimli"]
 mips = ["any-arch", "dep:rabbitizer"]
 ppc = ["any-arch", "dep:cwdemangle", "dep:cwextab", "dep:ppc750cl"]
 x86 = ["any-arch", "dep:cpp_demangle", "dep:iced-x86", "dep:msvc-demangler"]
 arm = ["any-arch", "dep:cpp_demangle", "dep:unarm", "dep:arm-attr"]
-bindings = ["dep:serde_json", "dep:prost", "dep:pbjson", "dep:serde", "dep:prost-build", "dep:pbjson-build"]
+arm64 = ["any-arch", "dep:cpp_demangle", "dep:yaxpeax-arch", "dep:yaxpeax-arm"]
 wasm = ["bindings", "any-arch", "dep:console_error_panic_hook", "dep:console_log", "dep:wasm-bindgen", "dep:tsify-next", "dep:log"]
 
 [package.metadata.docs.rs]
@@ -76,6 +78,31 @@ msvc-demangler = { version = "0.10", optional = true }
 unarm = { version = "1.6", optional = true }
 arm-attr = { version = "0.1", optional = true }
 
+# arm64
+yaxpeax-arch = { version = "0.3", default-features = false, features = ["std"], optional = true }
+yaxpeax-arm = { version = "0.3", default-features = false, features = ["std"], optional = true }
+
+# build
+notify = { git = "https://github.com/notify-rs/notify", rev = "128bf6230c03d39dbb7f301ff7b20e594e34c3a2", optional = true }
+notify-debouncer-full = { git = "https://github.com/notify-rs/notify", rev = "128bf6230c03d39dbb7f301ff7b20e594e34c3a2", optional = true }
+shell-escape = { version = "0.1", optional = true }
+tempfile = { version = "3.14", optional = true }
+time = { version = "0.3", optional = true }
+
+[target.'cfg(windows)'.dependencies]
+path-slash = { version = "0.2", optional = true }
+winapi = { version = "0.3", optional = true }
+
+# For Linux static binaries, use rustls
+[target.'cfg(target_os = "linux")'.dependencies]
+reqwest = { version = "0.12", default-features = false, features = ["blocking", "json", "multipart", "rustls-tls"], optional = true }
+self_update = { version = "0.41", default-features = false, features = ["rustls"], optional = true }
+
+# For all other platforms, use native TLS
+[target.'cfg(not(target_os = "linux"))'.dependencies]
+reqwest = { version = "0.12", default-features = false, features = ["blocking", "json", "multipart", "default-tls"], optional = true }
+self_update = { version = "0.41", optional = true }
+
 [build-dependencies]
 prost-build = { version = "0.13", optional = true }
 pbjson-build = { version = "0.7", optional = true }

objdiff-core/README.md

@@ -11,4 +11,5 @@ objdiff-core contains the core functionality of [objdiff](https://github.com/enc
 - **`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.

objdiff-core/src/arch/arm.rs

@@ -124,11 +124,9 @@ impl ObjArch for ObjArchArm {
             .get(&SectionIndex(section_index))
             .map(|x| x.as_slice())
             .unwrap_or(&fallback_mappings);
-        let first_mapping_idx =
-            match mapping_symbols.binary_search_by_key(&start_addr, |x| x.address) {
-                Ok(idx) => idx,
-                Err(idx) => idx - 1,
-            };
+        let first_mapping_idx = mapping_symbols
+            .binary_search_by_key(&start_addr, |x| x.address)
+            .unwrap_or_else(|idx| idx - 1);
         let first_mapping = mapping_symbols[first_mapping_idx].mapping;
 
         let mut mappings_iter =
@@ -215,7 +213,7 @@ impl ObjArch for ObjArchArm {
                 address: address as u64,
                 size: (parser.address - address) as u8,
                 op: ins.opcode_id(),
-                mnemonic: parsed_ins.mnemonic.to_string(),
+                mnemonic: Cow::Borrowed(parsed_ins.mnemonic),
                 args,
                 reloc,
                 branch_dest,
@@ -234,7 +232,7 @@ impl ObjArch for ObjArchArm {
         section: &ObjSection,
         address: u64,
         reloc: &Relocation,
-    ) -> anyhow::Result<i64> {
+    ) -> Result<i64> {
         let address = address as usize;
         Ok(match reloc.flags() {
             // ARM calls

objdiff-core/src/arch/mips.rs

@@ -119,7 +119,7 @@ impl ObjArch for ObjArchMips {
             let op = instruction.unique_id as u16;
             ops.push(op);
 
-            let mnemonic = instruction.opcode_name().to_string();
+            let mnemonic = instruction.opcode_name();
             let is_branch = instruction.is_branch();
             let branch_offset = instruction.branch_offset();
             let mut branch_dest = if is_branch {
@@ -202,7 +202,7 @@ impl ObjArch for ObjArchMips {
                 address: cur_addr as u64,
                 size: 4,
                 op,
-                mnemonic,
+                mnemonic: Cow::Borrowed(mnemonic),
                 args,
                 reloc: reloc.cloned(),
                 branch_dest,

objdiff-core/src/arch/mod.rs

@@ -12,6 +12,8 @@ use crate::{
 
 #[cfg(feature = "arm")]
 mod arm;
+#[cfg(feature = "arm64")]
+mod arm64;
 #[cfg(feature = "mips")]
 pub mod mips;
 #[cfg(feature = "ppc")]
@@ -34,13 +36,22 @@ pub enum DataType {
 
 impl DataType {
     pub fn display_bytes<Endian: ByteOrder>(&self, bytes: &[u8]) -> Option<String> {
-        // TODO: Attempt to interpret large symbols as arrays of a smaller type,
-        // fallback to intrepreting it as bytes.
-        // https://github.com/encounter/objdiff/issues/124
-        if self.required_len().is_some_and(|l| bytes.len() != l) {
-            log::warn!("Failed to display a symbol value for a symbol whose size doesn't match the instruction referencing it.");
+        if self.required_len().is_some_and(|l| bytes.len() < l) {
+            log::warn!("Failed to display a symbol value for a symbol whose size is too small for instruction referencing it.");
             return None;
         }
+        let mut bytes = bytes;
+        if self.required_len().is_some_and(|l| bytes.len() > l) {
+            // If the symbol's size is larger a single instance of this data type, we take just the
+            // bytes necessary for one of them in order to display the first element of the array.
+            bytes = &bytes[0..self.required_len().unwrap()];
+            // TODO: Attempt to interpret large symbols as arrays of a smaller type and show all
+            // elements of the array instead. https://github.com/encounter/objdiff/issues/124
+            // However, note that the stride of an array can not always be determined just by the
+            // data type guessed by the single instruction accessing it. There can also be arrays of
+            // structs that contain multiple elements of different types, so if other elements after
+            // the first one were to be displayed in this manner, they may be inaccurate.
+        }
 
         match self {
             DataType::Int8 => {
@@ -84,10 +95,10 @@ impl DataType {
                 }
             }
             DataType::Float => {
-                format!("Float: {}", Endian::read_f32(bytes))
+                format!("Float: {:?}f", Endian::read_f32(bytes))
             }
             DataType::Double => {
-                format!("Double: {}", Endian::read_f64(bytes))
+                format!("Double: {:?}", Endian::read_f64(bytes))
             }
             DataType::Bytes => {
                 format!("Bytes: {:#?}", bytes)
@@ -165,6 +176,8 @@ pub fn new_arch(object: &File) -> Result<Box<dyn ObjArch>> {
         Architecture::I386 | Architecture::X86_64 => Box::new(x86::ObjArchX86::new(object)?),
         #[cfg(feature = "arm")]
         Architecture::Arm => Box::new(arm::ObjArchArm::new(object)?),
+        #[cfg(feature = "arm64")]
+        Architecture::Aarch64 => Box::new(arm64::ObjArchArm64::new(object)?),
         arch => bail!("Unsupported architecture: {arch:?}"),
     })
 }

objdiff-core/src/arch/ppc.rs

@@ -1,4 +1,7 @@
-use std::{borrow::Cow, collections::BTreeMap};
+use std::{
+    borrow::Cow,
+    collections::{BTreeMap, HashMap},
+};
 
 use anyhow::{bail, ensure, Result};
 use byteorder::BigEndian;
@@ -7,7 +10,7 @@ use object::{
     elf, File, Object, ObjectSection, ObjectSymbol, Relocation, RelocationFlags, RelocationTarget,
     Symbol, SymbolKind,
 };
-use ppc750cl::{Argument, InsIter, Opcode, GPR};
+use ppc750cl::{Argument, InsIter, Opcode, ParsedIns, GPR};
 
 use crate::{
     arch::{DataType, ObjArch, ProcessCodeResult},
@@ -49,6 +52,8 @@ impl ObjArch for ObjArchPpc {
         let ins_count = code.len() / 4;
         let mut ops = Vec::<u16>::with_capacity(ins_count);
         let mut insts = Vec::<ObjIns>::with_capacity(ins_count);
+        let fake_pool_reloc_for_addr =
+            generate_fake_pool_reloc_for_addr_mapping(address, code, relocations);
         for (cur_addr, mut ins) in InsIter::new(code, address as u32) {
             let reloc = relocations.iter().find(|r| (r.address as u32 & !3) == cur_addr);
             if let Some(reloc) = reloc {
@@ -143,9 +148,9 @@ impl ObjArch for ObjArchPpc {
             insts.push(ObjIns {
                 address: cur_addr as u64,
                 size: 4,
-                mnemonic: simplified.mnemonic.to_string(),
+                mnemonic: Cow::Borrowed(simplified.mnemonic),
                 args,
-                reloc: reloc.cloned(),
+                reloc: reloc.or(fake_pool_reloc_for_addr.get(&cur_addr)).cloned(),
                 op: ins.op as u16,
                 branch_dest,
                 line,
@@ -173,6 +178,7 @@ impl ObjArch for ObjArchPpc {
     fn display_reloc(&self, flags: RelocationFlags) -> Cow<'static, str> {
         match flags {
             RelocationFlags::Elf { r_type } => match r_type {
+                elf::R_PPC_NONE => Cow::Borrowed("R_PPC_NONE"), // We use this for fake pool relocs
                 elf::R_PPC_ADDR16_LO => Cow::Borrowed("R_PPC_ADDR16_LO"),
                 elf::R_PPC_ADDR16_HI => Cow::Borrowed("R_PPC_ADDR16_HI"),
                 elf::R_PPC_ADDR16_HA => Cow::Borrowed("R_PPC_ADDR16_HA"),
@@ -188,26 +194,22 @@ impl ObjArch for ObjArchPpc {
     }
 
     fn guess_data_type(&self, instruction: &ObjIns) -> Option<super::DataType> {
-        // Always shows the first string of the table. Not ideal, but it's really hard to find
-        // the actual string being referenced.
         if instruction.reloc.as_ref().is_some_and(|r| r.target.name.starts_with("@stringBase")) {
             return Some(DataType::String);
         }
 
-        match Opcode::from(instruction.op as u8) {
-            Opcode::Lbz | Opcode::Lbzu | Opcode::Lbzux | Opcode::Lbzx => Some(DataType::Int8),
-            Opcode::Lhz | Opcode::Lhzu | Opcode::Lhzux | Opcode::Lhzx => Some(DataType::Int16),
-            Opcode::Lha | Opcode::Lhau | Opcode::Lhaux | Opcode::Lhax => Some(DataType::Int16),
-            Opcode::Lwz | Opcode::Lwzu | Opcode::Lwzux | Opcode::Lwzx => Some(DataType::Int32),
-            Opcode::Lfs | Opcode::Lfsu | Opcode::Lfsux | Opcode::Lfsx => Some(DataType::Float),
-            Opcode::Lfd | Opcode::Lfdu | Opcode::Lfdux | Opcode::Lfdx => Some(DataType::Double),
-
-            Opcode::Stb | Opcode::Stbu | Opcode::Stbux | Opcode::Stbx => Some(DataType::Int8),
-            Opcode::Sth | Opcode::Sthu | Opcode::Sthux | Opcode::Sthx => Some(DataType::Int16),
-            Opcode::Stw | Opcode::Stwu | Opcode::Stwux | Opcode::Stwx => Some(DataType::Int32),
-            Opcode::Stfs | Opcode::Stfsu | Opcode::Stfsux | Opcode::Stfsx => Some(DataType::Float),
-            Opcode::Stfd | Opcode::Stfdu | Opcode::Stfdux | Opcode::Stfdx => Some(DataType::Double),
-            _ => None,
+        let op = Opcode::from(instruction.op as u8);
+        if let Some(ty) = guess_data_type_from_load_store_inst_op(op) {
+            Some(ty)
+        } else if op == Opcode::Addi {
+            // Assume that any addi instruction that references a local symbol is loading a string.
+            // This hack is not ideal and results in tons of false positives where it will show
+            // garbage strings (e.g. misinterpreting arrays, float literals, etc).
+            // But not all strings are in the @stringBase pool, so the condition above that checks
+            // the target symbol name would miss some.
+            Some(DataType::String)
+        } else {
+            None
         }
     }
 
@@ -381,3 +383,196 @@ fn make_symbol_ref(symbol: &Symbol) -> Result<ExtabSymbolRef> {
     let demangled_name = cwdemangle::demangle(&name, &cwdemangle::DemangleOptions::default());
     Ok(ExtabSymbolRef { original_index: symbol.index().0, name, demangled_name })
 }
+
+fn guess_data_type_from_load_store_inst_op(inst_op: Opcode) -> Option<DataType> {
+    match inst_op {
+        Opcode::Lbz | Opcode::Lbzu | Opcode::Lbzux | Opcode::Lbzx => Some(DataType::Int8),
+        Opcode::Lhz | Opcode::Lhzu | Opcode::Lhzux | Opcode::Lhzx => Some(DataType::Int16),
+        Opcode::Lha | Opcode::Lhau | Opcode::Lhaux | Opcode::Lhax => Some(DataType::Int16),
+        Opcode::Lwz | Opcode::Lwzu | Opcode::Lwzux | Opcode::Lwzx => Some(DataType::Int32),
+        Opcode::Lfs | Opcode::Lfsu | Opcode::Lfsux | Opcode::Lfsx => Some(DataType::Float),
+        Opcode::Lfd | Opcode::Lfdu | Opcode::Lfdux | Opcode::Lfdx => Some(DataType::Double),
+
+        Opcode::Stb | Opcode::Stbu | Opcode::Stbux | Opcode::Stbx => Some(DataType::Int8),
+        Opcode::Sth | Opcode::Sthu | Opcode::Sthux | Opcode::Sthx => Some(DataType::Int16),
+        Opcode::Stw | Opcode::Stwu | Opcode::Stwux | Opcode::Stwx => Some(DataType::Int32),
+        Opcode::Stfs | Opcode::Stfsu | Opcode::Stfsux | Opcode::Stfsx => Some(DataType::Float),
+        Opcode::Stfd | Opcode::Stfdu | Opcode::Stfdux | Opcode::Stfdx => Some(DataType::Double),
+        _ => None,
+    }
+}
+
+// Given an instruction, determine if it could accessing data at the address in a register.
+// If so, return the offset added to the register's address, the register containing that address,
+// and (optionally) which destination register the address is being copied into.
+fn get_offset_and_addr_gpr_for_possible_pool_reference(
+    opcode: Opcode,
+    simplified: &ParsedIns,
+) -> Option<(i16, GPR, Option<GPR>)> {
+    let args = &simplified.args;
+    if guess_data_type_from_load_store_inst_op(opcode).is_some() {
+        match (args[1], args[2]) {
+            (Argument::Offset(offset), Argument::GPR(addr_src_gpr)) => {
+                // e.g. lwz. Immediate offset.
+                Some((offset.0, addr_src_gpr, None))
+            }
+            (Argument::GPR(addr_src_gpr), Argument::GPR(_offset_gpr)) => {
+                // e.g. lwzx. The offset is in a register and was likely calculated from an index.
+                // Treat the offset as being 0 in this case to show the first element of the array.
+                // It may be possible to show all elements by figuring out the stride of the array
+                // from the calculations performed on the index before it's put into offset_gpr, but
+                // this would be much more complicated, so it's not currently done.
+                Some((0, addr_src_gpr, None))
+            }
+            _ => None,
+        }
+    } else {
+        // If it's not a load/store instruction, there's two more possibilities we need to handle.
+        // 1. It could be loading a pointer to a string.
+        // 2. It could be moving the relocation address plus an offset into a different register to
+        //    load from later.
+        // If either of these match, we also want to return the destination register that the
+        // address is being copied into so that we can detect any future references to that new
+        // register as well.
+        match (opcode, args[0], args[1], args[2]) {
+            (
+                Opcode::Addi,
+                Argument::GPR(addr_dst_gpr),
+                Argument::GPR(addr_src_gpr),
+                Argument::Simm(simm),
+            ) => Some((simm.0, addr_src_gpr, Some(addr_dst_gpr))),
+            (
+                Opcode::Or,
+                Argument::GPR(addr_dst_gpr),
+                Argument::GPR(addr_src_gpr),
+                Argument::None,
+            ) => Some((0, addr_src_gpr, Some(addr_dst_gpr))), // `mr` or `mr.`
+            _ => None,
+        }
+    }
+}
+
+// We create a fake relocation for an instruction, vaguely simulating what the actual relocation
+// might have looked like if it wasn't pooled. This is so minimal changes are needed to display
+// pooled accesses vs non-pooled accesses. We set the relocation type to R_PPC_NONE to indicate that
+// there isn't really a relocation here, as copying the pool relocation's type wouldn't make sense.
+// Also, if this instruction is accessing the middle of a symbol instead of the start, we add an
+// addend to indicate that.
+fn make_fake_pool_reloc(offset: i16, cur_addr: u32, pool_reloc: &ObjReloc) -> Option<ObjReloc> {
+    let offset_from_pool = pool_reloc.addend + offset as i64;
+    let target_address = pool_reloc.target.address.checked_add_signed(offset_from_pool)?;
+    let orig_section_index = pool_reloc.target.orig_section_index?;
+    // We also need to create a fake target symbol to go inside our fake relocation.
+    // This is because we don't have access to list of all symbols in this section, so we can't find
+    // the real symbol yet. Instead we make a placeholder that has the correct `orig_section_index`
+    // and `address` fields, and then later on when this information is displayed to the user, we
+    // can find the real symbol by searching through the object's section's symbols for one that
+    // contains this address.
+    let fake_target_symbol = ObjSymbol {
+        name: "".to_string(),
+        demangled_name: None,
+        address: target_address,
+        section_address: 0,
+        size: 0,
+        size_known: false,
+        kind: Default::default(),
+        flags: Default::default(),
+        orig_section_index: Some(orig_section_index),
+        virtual_address: None,
+        original_index: None,
+        bytes: vec![],
+    };
+    // The addend is also fake because we don't know yet if the `target_address` here is the exact
+    // start of the symbol or if it's in the middle of it.
+    let fake_addend = 0;
+    Some(ObjReloc {
+        flags: RelocationFlags::Elf { r_type: elf::R_PPC_NONE },
+        address: cur_addr as u64,
+        target: fake_target_symbol,
+        addend: fake_addend,
+    })
+}
+
+// Searches through all instructions in a function, determining which registers have the addresses
+// of pooled data relocations in them, finding which instructions load data from those addresses,
+// and constructing a mapping of the address of that instruction to a "fake pool relocation" that
+// simulates what that instruction's relocation would look like if data hadn't been pooled.
+// Limitations: This method currently only goes through the instructions in a function in linear
+// order, from start to finish. It does *not* follow any branches. This means that it could have
+// false positives or false negatives in determining which relocation is currently loaded in which
+// register at any given point in the function, as control flow is not respected.
+// There are currently no known examples of this method producing inaccurate results in reality, but
+// if examples are found, it may be possible to update this method to also follow all branches so
+// that it produces more accurate results.
+fn generate_fake_pool_reloc_for_addr_mapping(
+    address: u64,
+    code: &[u8],
+    relocations: &[ObjReloc],
+) -> HashMap<u32, ObjReloc> {
+    let mut active_pool_relocs = HashMap::new();
+    let mut pool_reloc_for_addr = HashMap::new();
+    for (cur_addr, ins) in InsIter::new(code, address as u32) {
+        let simplified = ins.simplified();
+        let reloc = relocations.iter().find(|r| (r.address as u32 & !3) == cur_addr);
+
+        if let Some(reloc) = reloc {
+            // This instruction has a real relocation, so it may be a pool load we want to keep
+            // track of.
+            let args = &simplified.args;
+            match (ins.op, args[0], args[1], args[2]) {
+                (
+                    Opcode::Addi,
+                    Argument::GPR(addr_dst_gpr),
+                    Argument::GPR(_addr_src_gpr),
+                    Argument::Simm(_simm),
+                ) => {
+                    active_pool_relocs.insert(addr_dst_gpr.0, reloc.clone()); // `lis` + `addi`
+                }
+                (
+                    Opcode::Ori,
+                    Argument::GPR(addr_dst_gpr),
+                    Argument::GPR(_addr_src_gpr),
+                    Argument::Uimm(_uimm),
+                ) => {
+                    active_pool_relocs.insert(addr_dst_gpr.0, reloc.clone()); // `lis` + `ori`
+                }
+                (Opcode::B, _, _, _) => {
+                    if simplified.mnemonic == "bl" {
+                        // When encountering a function call, clear any active pool relocations from
+                        // the volatile registers (r0, r3-r12), but not the nonvolatile registers.
+                        active_pool_relocs.remove(&0);
+                        for gpr in 3..12 {
+                            active_pool_relocs.remove(&gpr);
+                        }
+                    }
+                }
+                _ => {}
+            }
+        } else if let Some((offset, addr_src_gpr, addr_dst_gpr)) =
+            get_offset_and_addr_gpr_for_possible_pool_reference(ins.op, &simplified)
+        {
+            // This instruction doesn't have a real relocation, so it may be a reference to one of
+            // the already-loaded pools.
+            if let Some(pool_reloc) = active_pool_relocs.get(&addr_src_gpr.0) {
+                if let Some(fake_pool_reloc) = make_fake_pool_reloc(offset, cur_addr, pool_reloc) {
+                    pool_reloc_for_addr.insert(cur_addr, fake_pool_reloc);
+                }
+                if let Some(addr_dst_gpr) = addr_dst_gpr {
+                    // If the address of the pool relocation got copied into another register, we
+                    // need to keep track of it in that register too as future instructions may
+                    // reference the symbol indirectly via this new register, instead of the
+                    // register the symbol's address was originally loaded into.
+                    // For example, the start of the function might `lis` + `addi` the start of the
+                    // ...data pool into r25, and then later the start of a loop will `addi` r25
+                    // with the offset within the .data section of an array variable into r21.
+                    // Then the body of the loop will `lwzx` one of the array elements from r21.
+                    let mut new_reloc = pool_reloc.clone();
+                    new_reloc.addend += offset as i64;
+                    active_pool_relocs.insert(addr_dst_gpr.0, new_reloc);
+                }
+            }
+        }
+    }
+
+    pool_reloc_for_addr
+}

objdiff-core/src/arch/x86.rs

@@ -51,7 +51,7 @@ impl ObjArch for ObjArchX86 {
                 address: 0,
                 size: 0,
                 op: 0,
-                mnemonic: String::new(),
+                mnemonic: Cow::Borrowed("<invalid>"),
                 args: vec![],
                 reloc: None,
                 branch_dest: None,
@@ -76,7 +76,7 @@ impl ObjArch for ObjArchX86 {
                 address,
                 size: instruction.len() as u8,
                 op,
-                mnemonic: String::new(),
+                mnemonic: Cow::Borrowed("<invalid>"),
                 args: vec![],
                 reloc: reloc.cloned(),
                 branch_dest: None,
@@ -242,7 +242,8 @@ impl FormatterOutput for InstructionFormatterOutput {
 
     fn write_mnemonic(&mut self, _instruction: &Instruction, text: &str) {
         self.formatted.push_str(text);
-        self.ins.mnemonic = text.to_string();
+        // TODO: can iced-x86 guarantee 'static here?
+        self.ins.mnemonic = Cow::Owned(text.to_string());
     }
 
     fn write_number(

objdiff-core/src/bindings/diff.rs

@@ -1,3 +1,4 @@
+#![allow(clippy::needless_lifetimes)] // Generated serde code
 use crate::{
     diff::{
         ObjDataDiff, ObjDataDiffKind, ObjDiff, ObjInsArgDiff, ObjInsBranchFrom, ObjInsBranchTo,
@@ -132,7 +133,7 @@ impl Instruction {
             address: instruction.address,
             size: instruction.size as u32,
             opcode: instruction.op as u32,
-            mnemonic: instruction.mnemonic.clone(),
+            mnemonic: instruction.mnemonic.to_string(),
             formatted: instruction.formatted.clone(),
             arguments: instruction.args.iter().map(Argument::new).collect(),
             relocation: instruction.reloc.as_ref().map(|reloc| Relocation::new(object, reloc)),

objdiff-core/src/bindings/report.rs

@@ -1,3 +1,4 @@
+#![allow(clippy::needless_lifetimes)] // Generated serde code
 use std::ops::AddAssign;
 
 use anyhow::{bail, Result};
@@ -173,8 +174,7 @@ impl Report {
                 continue;
             }
             fn is_sub_category(id: &str, parent: &str, sep: char) -> bool {
-                id.starts_with(parent)
-                    && id.get(parent.len()..).map_or(false, |s| s.starts_with(sep))
+                id.starts_with(parent) && id.get(parent.len()..).is_some_and(|s| s.starts_with(sep))
             }
             let mut sub_categories = self
                 .categories

objdiff-core/src/build/mod.rs

@@ -0,0 +1,106 @@
+pub mod watcher;
+
+use std::{
+    path::{Path, PathBuf},
+    process::Command,
+};
+
+pub struct BuildStatus {
+    pub success: bool,
+    pub cmdline: String,
+    pub stdout: String,
+    pub stderr: String,
+}
+
+impl Default for BuildStatus {
+    fn default() -> Self {
+        BuildStatus {
+            success: true,
+            cmdline: String::new(),
+            stdout: String::new(),
+            stderr: String::new(),
+        }
+    }
+}
+
+#[derive(Debug, Clone)]
+pub struct BuildConfig {
+    pub project_dir: Option<PathBuf>,
+    pub custom_make: Option<String>,
+    pub custom_args: Option<Vec<String>>,
+    #[allow(unused)]
+    pub selected_wsl_distro: Option<String>,
+}
+
+pub fn run_make(config: &BuildConfig, arg: &Path) -> BuildStatus {
+    let Some(cwd) = &config.project_dir else {
+        return BuildStatus {
+            success: false,
+            stderr: "Missing project dir".to_string(),
+            ..Default::default()
+        };
+    };
+    let make = config.custom_make.as_deref().unwrap_or("make");
+    let make_args = config.custom_args.as_deref().unwrap_or(&[]);
+    #[cfg(not(windows))]
+    let mut command = {
+        let mut command = Command::new(make);
+        command.current_dir(cwd).args(make_args).arg(arg);
+        command
+    };
+    #[cfg(windows)]
+    let mut command = {
+        use std::os::windows::process::CommandExt;
+
+        use path_slash::PathExt;
+        let mut command = if config.selected_wsl_distro.is_some() {
+            Command::new("wsl")
+        } else {
+            Command::new(make)
+        };
+        if let Some(distro) = &config.selected_wsl_distro {
+            // Strip distro root prefix \\wsl.localhost\{distro}
+            let wsl_path_prefix = format!("\\\\wsl.localhost\\{}", distro);
+            let cwd = match cwd.strip_prefix(wsl_path_prefix) {
+                Ok(new_cwd) => format!("/{}", new_cwd.to_slash_lossy().as_ref()),
+                Err(_) => cwd.to_string_lossy().to_string(),
+            };
+
+            command
+                .arg("--cd")
+                .arg(cwd)
+                .arg("-d")
+                .arg(distro)
+                .arg("--")
+                .arg(make)
+                .args(make_args)
+                .arg(arg.to_slash_lossy().as_ref());
+        } else {
+            command.current_dir(cwd).args(make_args).arg(arg.to_slash_lossy().as_ref());
+        }
+        command.creation_flags(winapi::um::winbase::CREATE_NO_WINDOW);
+        command
+    };
+    let mut cmdline = shell_escape::escape(command.get_program().to_string_lossy()).into_owned();
+    for arg in command.get_args() {
+        cmdline.push(' ');
+        cmdline.push_str(shell_escape::escape(arg.to_string_lossy()).as_ref());
+    }
+    let output = match command.output() {
+        Ok(output) => output,
+        Err(e) => {
+            return BuildStatus {
+                success: false,
+                cmdline,
+                stdout: Default::default(),
+                stderr: e.to_string(),
+            };
+        }
+    };
+    // Try from_utf8 first to avoid copying the buffer if it's valid, then fall back to from_utf8_lossy
+    let stdout = String::from_utf8(output.stdout)
+        .unwrap_or_else(|e| String::from_utf8_lossy(e.as_bytes()).into_owned());
+    let stderr = String::from_utf8(output.stderr)
+        .unwrap_or_else(|e| String::from_utf8_lossy(e.as_bytes()).into_owned());
+    BuildStatus { success: output.status.success(), cmdline, stdout, stderr }
+}

objdiff-core/src/build/watcher.rs

@@ -0,0 +1,75 @@
+use std::{
+    fs,
+    path::{Path, PathBuf},
+    sync::{
+        atomic::{AtomicBool, Ordering},
+        Arc,
+    },
+    task::Waker,
+    time::Duration,
+};
+
+use globset::GlobSet;
+use notify::RecursiveMode;
+use notify_debouncer_full::{new_debouncer_opt, DebounceEventResult};
+
+pub type Watcher = notify_debouncer_full::Debouncer<
+    notify::RecommendedWatcher,
+    notify_debouncer_full::RecommendedCache,
+>;
+
+pub struct WatcherState {
+    pub config_path: Option<PathBuf>,
+    pub left_obj_path: Option<PathBuf>,
+    pub right_obj_path: Option<PathBuf>,
+    pub patterns: GlobSet,
+}
+
+pub fn create_watcher(
+    modified: Arc<AtomicBool>,
+    project_dir: &Path,
+    patterns: GlobSet,
+    waker: Waker,
+) -> notify::Result<Watcher> {
+    let base_dir = fs::canonicalize(project_dir)?;
+    let base_dir_clone = base_dir.clone();
+    let timeout = Duration::from_millis(200);
+    let config = notify::Config::default().with_poll_interval(Duration::from_secs(2));
+    let mut debouncer = new_debouncer_opt(
+        timeout,
+        None,
+        move |result: DebounceEventResult| match result {
+            Ok(events) => {
+                let mut any_match = false;
+                for event in events.iter() {
+                    if !matches!(
+                        event.kind,
+                        notify::EventKind::Modify(..)
+                            | notify::EventKind::Create(..)
+                            | notify::EventKind::Remove(..)
+                    ) {
+                        continue;
+                    }
+                    for path in &event.paths {
+                        let Ok(path) = path.strip_prefix(&base_dir_clone) else {
+                            continue;
+                        };
+                        if patterns.is_match(path) {
+                            // log::info!("File modified: {}", path.display());
+                            any_match = true;
+                        }
+                    }
+                }
+                if any_match {
+                    modified.store(true, Ordering::Relaxed);
+                    waker.wake_by_ref();
+                }
+            }
+            Err(errors) => errors.iter().for_each(|e| log::error!("Watch error: {e:?}")),
+        },
+        notify_debouncer_full::RecommendedCache::new(),
+        config,
+    )?;
+    debouncer.watch(base_dir, RecursiveMode::Recursive)?;
+    Ok(debouncer)
+}

objdiff-core/src/config/mod.rs

@@ -165,6 +165,8 @@ pub struct ScratchConfig {
     pub ctx_path: Option<PathBuf>,
     #[serde(default, skip_serializing_if = "Option::is_none")]
     pub build_ctx: Option<bool>,
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub preset_id: Option<u32>,
 }
 
 pub const CONFIG_FILENAMES: [&str; 3] = ["objdiff.json", "objdiff.yml", "objdiff.yaml"];
@@ -174,6 +176,10 @@ pub const DEFAULT_WATCH_PATTERNS: &[&str] = &[
     "*.inc", "*.py", "*.yml", "*.txt", "*.json",
 ];
 
+pub fn default_watch_patterns() -> Vec<Glob> {
+    DEFAULT_WATCH_PATTERNS.iter().map(|s| Glob::new(s).unwrap()).collect()
+}
+
 #[derive(Clone, Eq, PartialEq)]
 pub struct ProjectConfigInfo {
     pub path: PathBuf,

objdiff-core/src/diff/code.rs

@@ -9,7 +9,7 @@ use crate::{
         DiffObjConfig, ObjInsArgDiff, ObjInsBranchFrom, ObjInsBranchTo, ObjInsDiff, ObjInsDiffKind,
         ObjSymbolDiff,
     },
-    obj::{ObjInfo, ObjInsArg, ObjReloc, ObjSymbolFlags, SymbolRef},
+    obj::{ObjInfo, ObjInsArg, ObjReloc, ObjSection, ObjSymbol, ObjSymbolFlags, SymbolRef},
 };
 
 pub fn process_code_symbol(
@@ -21,14 +21,30 @@ pub fn process_code_symbol(
     let section = section.ok_or_else(|| anyhow!("Code symbol section not found"))?;
     let code = &section.data
         [symbol.section_address as usize..(symbol.section_address + symbol.size) as usize];
-    obj.arch.process_code(
+    let mut res = obj.arch.process_code(
         symbol.address,
         code,
         section.orig_index,
         &section.relocations,
         &section.line_info,
         config,
-    )
+    )?;
+
+    for inst in res.insts.iter_mut() {
+        if let Some(reloc) = &mut inst.reloc {
+            if reloc.target.size == 0 && reloc.target.name.is_empty() {
+                // Fake target symbol we added as a placeholder. We need to find the real one.
+                if let Some(real_target) =
+                    find_symbol_matching_fake_symbol_in_sections(&reloc.target, &obj.sections)
+                {
+                    reloc.addend = (reloc.target.address - real_target.address) as i64;
+                    reloc.target = real_target;
+                }
+            }
+        }
+    }
+
+    Ok(res)
 }
 
 pub fn no_diff_code(out: &ProcessCodeResult, symbol_ref: SymbolRef) -> Result<ObjSymbolDiff> {
@@ -259,11 +275,17 @@ fn arg_eq(
                     right_diff.ins.as_ref().and_then(|i| i.reloc.as_ref()),
                 )
         }
-        ObjInsArg::BranchDest(_) => {
+        ObjInsArg::BranchDest(_) => match right {
             // Compare dest instruction idx after diffing
-            left_diff.branch_to.as_ref().map(|b| b.ins_idx)
-                == right_diff.branch_to.as_ref().map(|b| b.ins_idx)
-        }
+            ObjInsArg::BranchDest(_) => {
+                left_diff.branch_to.as_ref().map(|b| b.ins_idx)
+                    == right_diff.branch_to.as_ref().map(|b| b.ins_idx)
+            }
+            // If relocations are relaxed, match if left is a constant and right is a reloc
+            // Useful for instances where the target object is created without relocations
+            ObjInsArg::Reloc => config.relax_reloc_diffs,
+            _ => false,
+        },
     }
 }
 
@@ -293,15 +315,10 @@ fn compare_ins(
 ) -> Result<InsDiffResult> {
     let mut result = InsDiffResult::default();
     if let (Some(left_ins), Some(right_ins)) = (&left.ins, &right.ins) {
-        if left_ins.args.len() != right_ins.args.len()
-            || left_ins.op != right_ins.op
-            // Check if any PlainText segments differ (punctuation and spacing)
-            // This indicates a more significant difference than a simple arg mismatch
-            || !left_ins.args.iter().zip(&right_ins.args).all(|(a, b)| match (a, b) {
-                (ObjInsArg::PlainText(l), ObjInsArg::PlainText(r)) => l == r,
-                _ => true,
-            })
-        {
+        // Count only non-PlainText args
+        let left_args_count = left_ins.iter_args().count();
+        let right_args_count = right_ins.iter_args().count();
+        if left_args_count != right_args_count || left_ins.op != right_ins.op {
             // Totally different op
             result.kind = ObjInsDiffKind::Replace;
             state.diff_count += 1;
@@ -312,7 +329,7 @@ fn compare_ins(
             result.kind = ObjInsDiffKind::OpMismatch;
             state.diff_count += 1;
         }
-        for (a, b) in left_ins.args.iter().zip(&right_ins.args) {
+        for (a, b) in left_ins.iter_args().zip(right_ins.iter_args()) {
             if arg_eq(config, left_obj, right_obj, a, b, left, right) {
                 result.left_args_diff.push(None);
                 result.right_args_diff.push(None);
@@ -324,8 +341,11 @@ fn compare_ins(
                 let a_str = match a {
                     ObjInsArg::PlainText(arg) => arg.to_string(),
                     ObjInsArg::Arg(arg) => arg.to_string(),
-                    ObjInsArg::Reloc => String::new(),
-                    ObjInsArg::BranchDest(arg) => format!("{arg}"),
+                    ObjInsArg::Reloc => left_ins
+                        .reloc
+                        .as_ref()
+                        .map_or_else(|| "<unknown>".to_string(), |r| r.target.name.clone()),
+                    ObjInsArg::BranchDest(arg) => arg.to_string(),
                 };
                 let a_diff = if let Some(idx) = state.left_args_idx.get(&a_str) {
                     ObjInsArgDiff { idx: *idx }
@@ -338,8 +358,11 @@ fn compare_ins(
                 let b_str = match b {
                     ObjInsArg::PlainText(arg) => arg.to_string(),
                     ObjInsArg::Arg(arg) => arg.to_string(),
-                    ObjInsArg::Reloc => String::new(),
-                    ObjInsArg::BranchDest(arg) => format!("{arg}"),
+                    ObjInsArg::Reloc => right_ins
+                        .reloc
+                        .as_ref()
+                        .map_or_else(|| "<unknown>".to_string(), |r| r.target.name.clone()),
+                    ObjInsArg::BranchDest(arg) => arg.to_string(),
                 };
                 let b_diff = if let Some(idx) = state.right_args_idx.get(&b_str) {
                     ObjInsArgDiff { idx: *idx }
@@ -362,3 +385,16 @@ fn compare_ins(
     }
     Ok(result)
 }
+
+fn find_symbol_matching_fake_symbol_in_sections(
+    fake_symbol: &ObjSymbol,
+    sections: &[ObjSection],
+) -> Option<ObjSymbol> {
+    let orig_section_index = fake_symbol.orig_section_index?;
+    let section = sections.iter().find(|s| s.orig_index == orig_section_index)?;
+    let real_symbol = section
+        .symbols
+        .iter()
+        .find(|s| s.size > 0 && (s.address..s.address + s.size).contains(&fake_symbol.address))?;
+    Some(real_symbol.clone())
+}

objdiff-core/src/diff/display.rs

@@ -22,7 +22,7 @@ pub enum DiffText<'a> {
     /// Branch destination
     BranchDest(u64, Option<&'a ObjInsArgDiff>),
     /// Symbol name
-    Symbol(&'a ObjSymbol),
+    Symbol(&'a ObjSymbol, Option<&'a ObjInsArgDiff>),
     /// Number of spaces
     Spacing(usize),
     /// End of line
@@ -58,20 +58,23 @@ pub fn display_diff<E>(
         cb(DiffText::Spacing(4))?;
     }
     cb(DiffText::Opcode(&ins.mnemonic, ins.op))?;
+    let mut arg_diff_idx = 0; // non-PlainText index
     for (i, arg) in ins.args.iter().enumerate() {
         if i == 0 {
             cb(DiffText::Spacing(1))?;
         }
-        let diff = ins_diff.arg_diff.get(i).and_then(|o| o.as_ref());
+        let diff = ins_diff.arg_diff.get(arg_diff_idx).and_then(|o| o.as_ref());
         match arg {
             ObjInsArg::PlainText(s) => {
                 cb(DiffText::Basic(s))?;
             }
             ObjInsArg::Arg(v) => {
                 cb(DiffText::Argument(v, diff))?;
+                arg_diff_idx += 1;
             }
             ObjInsArg::Reloc => {
-                display_reloc_name(ins.reloc.as_ref().unwrap(), &mut cb)?;
+                display_reloc_name(ins.reloc.as_ref().unwrap(), &mut cb, diff)?;
+                arg_diff_idx += 1;
             }
             ObjInsArg::BranchDest(dest) => {
                 if let Some(dest) = dest.checked_sub(base_addr) {
@@ -79,6 +82,7 @@ pub fn display_diff<E>(
                 } else {
                     cb(DiffText::Basic("<unknown>"))?;
                 }
+                arg_diff_idx += 1;
             }
         }
     }
@@ -92,8 +96,9 @@ pub fn display_diff<E>(
 fn display_reloc_name<E>(
     reloc: &ObjReloc,
     mut cb: impl FnMut(DiffText) -> Result<(), E>,
+    diff: Option<&ObjInsArgDiff>,
 ) -> Result<(), E> {
-    cb(DiffText::Symbol(&reloc.target))?;
+    cb(DiffText::Symbol(&reloc.target, diff))?;
     match reloc.addend.cmp(&0i64) {
         Ordering::Greater => cb(DiffText::Basic(&format!("+{:#x}", reloc.addend))),
         Ordering::Less => cb(DiffText::Basic(&format!("-{:#x}", -reloc.addend))),
@@ -106,7 +111,7 @@ impl PartialEq<DiffText<'_>> for HighlightKind {
         match (self, other) {
             (HighlightKind::Opcode(a), DiffText::Opcode(_, b)) => a == b,
             (HighlightKind::Arg(a), DiffText::Argument(b, _)) => a.loose_eq(b),
-            (HighlightKind::Symbol(a), DiffText::Symbol(b)) => a == &b.name,
+            (HighlightKind::Symbol(a), DiffText::Symbol(b, _)) => a == &b.name,
             (HighlightKind::Address(a), DiffText::Address(b) | DiffText::BranchDest(b, _)) => {
                 a == b
             }
@@ -124,7 +129,7 @@ impl From<DiffText<'_>> for HighlightKind {
         match value {
             DiffText::Opcode(_, op) => HighlightKind::Opcode(op),
             DiffText::Argument(arg, _) => HighlightKind::Arg(arg.clone()),
-            DiffText::Symbol(sym) => HighlightKind::Symbol(sym.name.to_string()),
+            DiffText::Symbol(sym, _) => HighlightKind::Symbol(sym.name.to_string()),
             DiffText::Address(addr) | DiffText::BranchDest(addr, _) => HighlightKind::Address(addr),
             _ => HighlightKind::None,
         }

objdiff-core/src/diff/mod.rs

@@ -245,7 +245,7 @@ pub struct ObjInsDiff {
     pub branch_from: Option<ObjInsBranchFrom>,
     /// Branches to instruction
     pub branch_to: Option<ObjInsBranchTo>,
-    /// Arg diffs
+    /// Arg diffs (only contains non-PlainText args)
     pub arg_diff: Vec<Option<ObjInsArgDiff>>,
 }
 
@@ -577,7 +577,7 @@ fn generate_mapping_symbols(
     let Some(base_symbol_ref) = symbol_ref_by_name(base_obj, base_name) else {
         return Ok(());
     };
-    let (base_section, base_symbol) = base_obj.section_symbol(base_symbol_ref);
+    let (base_section, _base_symbol) = base_obj.section_symbol(base_symbol_ref);
     let Some(base_section) = base_section else {
         return Ok(());
     };
@@ -588,9 +588,7 @@ fn generate_mapping_symbols(
     for (target_section_index, target_section) in
         target_obj.sections.iter().enumerate().filter(|(_, s)| s.kind == base_section.kind)
     {
-        for (target_symbol_index, _target_symbol) in
-            target_section.symbols.iter().enumerate().filter(|(_, s)| s.kind == base_symbol.kind)
-        {
+        for (target_symbol_index, _target_symbol) in target_section.symbols.iter().enumerate() {
             let target_symbol_ref =
                 SymbolRef { section_idx: target_section_index, symbol_idx: target_symbol_index };
             match base_section.kind {

objdiff-core/src/jobs/check_update.rs

@@ -0,0 +1,50 @@
+use std::{sync::mpsc::Receiver, task::Waker};
+
+use anyhow::{Context, Result};
+use self_update::{
+    cargo_crate_version,
+    update::{Release, ReleaseUpdate},
+};
+
+use crate::jobs::{start_job, update_status, Job, JobContext, JobResult, JobState};
+
+pub struct CheckUpdateConfig {
+    pub build_updater: fn() -> Result<Box<dyn ReleaseUpdate>>,
+    pub bin_names: Vec<String>,
+}
+
+pub struct CheckUpdateResult {
+    pub update_available: bool,
+    pub latest_release: Release,
+    pub found_binary: Option<String>,
+}
+
+fn run_check_update(
+    context: &JobContext,
+    cancel: Receiver<()>,
+    config: CheckUpdateConfig,
+) -> Result<Box<CheckUpdateResult>> {
+    update_status(context, "Fetching latest release".to_string(), 0, 1, &cancel)?;
+    let updater = (config.build_updater)().context("Failed to create release updater")?;
+    let latest_release = updater.get_latest_release()?;
+    let update_available =
+        self_update::version::bump_is_greater(cargo_crate_version!(), &latest_release.version)?;
+    // Find the binary name in the release assets
+    let mut found_binary = None;
+    for bin_name in &config.bin_names {
+        if latest_release.assets.iter().any(|a| &a.name == bin_name) {
+            found_binary = Some(bin_name.clone());
+            break;
+        }
+    }
+
+    update_status(context, "Complete".to_string(), 1, 1, &cancel)?;
+    Ok(Box::new(CheckUpdateResult { update_available, latest_release, found_binary }))
+}
+
+pub fn start_check_update(waker: Waker, config: CheckUpdateConfig) -> JobState {
+    start_job(waker, "Check for updates", Job::CheckUpdate, move |context, cancel| {
+        run_check_update(&context, cancel, config)
+            .map(|result| JobResult::CheckUpdate(Some(result)))
+    })
+}

objdiff-core/src/jobs/create_scratch.rs

@@ -1,14 +1,10 @@
-use std::{fs, path::PathBuf, sync::mpsc::Receiver};
+use std::{fs, path::PathBuf, sync::mpsc::Receiver, task::Waker};
 
 use anyhow::{anyhow, bail, Context, Result};
-use const_format::formatcp;
 
 use crate::{
-    app::AppConfig,
-    jobs::{
-        objdiff::{run_make, BuildConfig, BuildStatus},
-        start_job, update_status, Job, JobContext, JobResult, JobState,
-    },
+    build::{run_make, BuildConfig, BuildStatus},
+    jobs::{start_job, update_status, Job, JobContext, JobResult, JobState},
 };
 
 #[derive(Debug, Clone)]
@@ -23,37 +19,7 @@ pub struct CreateScratchConfig {
     pub compiler_flags: String,
     pub function_name: String,
     pub target_obj: PathBuf,
-}
-
-impl CreateScratchConfig {
-    pub(crate) fn from_config(config: &AppConfig, function_name: String) -> Result<Self> {
-        let Some(selected_obj) = &config.selected_obj else {
-            bail!("No object selected");
-        };
-        let Some(target_path) = &selected_obj.target_path else {
-            bail!("No target path for {}", selected_obj.name);
-        };
-        let Some(scratch_config) = &selected_obj.scratch else {
-            bail!("No scratch configuration for {}", selected_obj.name);
-        };
-        Ok(Self {
-            build_config: BuildConfig::from_config(config),
-            context_path: scratch_config.ctx_path.clone(),
-            build_context: scratch_config.build_ctx.unwrap_or(false),
-            compiler: scratch_config.compiler.clone().unwrap_or_default(),
-            platform: scratch_config.platform.clone().unwrap_or_default(),
-            compiler_flags: scratch_config.c_flags.clone().unwrap_or_default(),
-            function_name,
-            target_obj: target_path.to_path_buf(),
-        })
-    }
-
-    pub fn is_available(config: &AppConfig) -> bool {
-        let Some(selected_obj) = &config.selected_obj else {
-            return false;
-        };
-        selected_obj.target_path.is_some() && selected_obj.scratch.is_some()
-    }
+    pub preset_id: Option<u32>,
 }
 
 #[derive(Default, Debug, Clone)]
@@ -97,22 +63,25 @@ fn run_create_scratch(
 
     update_status(status, "Creating scratch".to_string(), 1, 2, &cancel)?;
     let diff_flags = [format!("--disassemble={}", config.function_name)];
-    let diff_flags = serde_json::to_string(&diff_flags).unwrap();
+    let diff_flags = serde_json::to_string(&diff_flags)?;
     let obj_path = project_dir.join(&config.target_obj);
     let file = reqwest::blocking::multipart::Part::file(&obj_path)
         .with_context(|| format!("Failed to open {}", obj_path.display()))?;
-    let form = reqwest::blocking::multipart::Form::new()
+    let mut form = reqwest::blocking::multipart::Form::new()
         .text("compiler", config.compiler.clone())
         .text("platform", config.platform.clone())
         .text("compiler_flags", config.compiler_flags.clone())
         .text("diff_label", config.function_name.clone())
         .text("diff_flags", diff_flags)
         .text("context", context.unwrap_or_default())
-        .text("source_code", "// Move related code from Context tab to here")
-        .part("target_obj", file);
+        .text("source_code", "// Move related code from Context tab to here");
+    if let Some(preset) = config.preset_id {
+        form = form.text("preset", preset.to_string());
+    }
+    form = form.part("target_obj", file);
     let client = reqwest::blocking::Client::new();
     let response = client
-        .post(formatcp!("{API_HOST}/api/scratch"))
+        .post(format!("{API_HOST}/api/scratch"))
         .multipart(form)
         .send()
         .map_err(|e| anyhow!("Failed to send request: {}", e))?;
@@ -126,8 +95,8 @@ fn run_create_scratch(
     Ok(Box::from(CreateScratchResult { scratch_url }))
 }
 
-pub fn start_create_scratch(ctx: &egui::Context, config: CreateScratchConfig) -> JobState {
-    start_job(ctx, "Create scratch", Job::CreateScratch, move |context, cancel| {
+pub fn start_create_scratch(waker: Waker, config: CreateScratchConfig) -> JobState {
+    start_job(waker, "Create scratch", Job::CreateScratch, move |context, cancel| {
         run_create_scratch(&context, cancel, config)
             .map(|result| JobResult::CreateScratch(Some(result)))
     })

objdiff-core/src/jobs/mod.rs

@@ -4,6 +4,7 @@ use std::{
         mpsc::{Receiver, Sender, TryRecvError},
         Arc, RwLock,
     },
+    task::Waker,
     thread::JoinHandle,
 };
 
@@ -53,7 +54,6 @@ impl JobQueue {
     }
 
     /// Returns whether any job is running.
-    #[expect(dead_code)]
     pub fn any_running(&self) -> bool {
         self.jobs.iter().any(|job| {
             if let Some(handle) = &job.handle {
@@ -96,12 +96,53 @@ impl JobQueue {
 
     /// Removes a job from the queue given its ID.
     pub fn remove(&mut self, id: usize) { self.jobs.retain(|job| job.id != id); }
+
+    /// Collects the results of all finished jobs and handles any errors.
+    pub fn collect_results(&mut self) {
+        let mut results = vec![];
+        for (job, result) in self.iter_finished() {
+            match result {
+                Ok(result) => {
+                    match result {
+                        JobResult::None => {
+                            // Job context contains the error
+                        }
+                        _ => results.push(result),
+                    }
+                }
+                Err(err) => {
+                    let err = if let Some(msg) = err.downcast_ref::<&'static str>() {
+                        anyhow::Error::msg(*msg)
+                    } else if let Some(msg) = err.downcast_ref::<String>() {
+                        anyhow::Error::msg(msg.clone())
+                    } else {
+                        anyhow::Error::msg("Thread panicked")
+                    };
+                    let result = job.context.status.write();
+                    if let Ok(mut guard) = result {
+                        guard.error = Some(err);
+                    } else {
+                        drop(result);
+                        job.context.status = Arc::new(RwLock::new(JobStatus {
+                            title: "Error".to_string(),
+                            progress_percent: 0.0,
+                            progress_items: None,
+                            status: String::new(),
+                            error: Some(err),
+                        }));
+                    }
+                }
+            }
+        }
+        self.results.append(&mut results);
+        self.clear_finished();
+    }
 }
 
 #[derive(Clone)]
 pub struct JobContext {
     pub status: Arc<RwLock<JobStatus>>,
-    pub egui: egui::Context,
+    pub waker: Waker,
 }
 
 pub struct JobState {
@@ -137,7 +178,7 @@ fn should_cancel(rx: &Receiver<()>) -> bool {
 }
 
 fn start_job(
-    ctx: &egui::Context,
+    waker: Waker,
     title: &str,
     kind: Job,
     run: impl FnOnce(JobContext, Receiver<()>) -> Result<JobResult> + Send + 'static,
@@ -149,22 +190,20 @@ fn start_job(
         status: String::new(),
         error: None,
     }));
-    let context = JobContext { status: status.clone(), egui: ctx.clone() };
-    let context_inner = JobContext { status: status.clone(), egui: ctx.clone() };
+    let context = JobContext { status: status.clone(), waker: waker.clone() };
+    let context_inner = JobContext { status: status.clone(), waker };
     let (tx, rx) = std::sync::mpsc::channel();
-    let handle = std::thread::spawn(move || {
-        return match run(context_inner, rx) {
-            Ok(state) => state,
-            Err(e) => {
-                if let Ok(mut w) = status.write() {
-                    w.error = Some(e);
-                }
-                JobResult::None
+    let handle = std::thread::spawn(move || match run(context_inner, rx) {
+        Ok(state) => state,
+        Err(e) => {
+            if let Ok(mut w) = status.write() {
+                w.error = Some(e);
             }
-        };
+            JobResult::None
+        }
     });
     let id = JOB_ID.fetch_add(1, Ordering::Relaxed);
-    log::info!("Started job {}", id);
+    // log::info!("Started job {}", id); TODO
     JobState { id, kind, handle: Some(handle), context, cancel: tx }
 }
 
@@ -186,6 +225,6 @@ fn update_status(
         w.status = str;
     }
     drop(w);
-    context.egui.request_repaint();
+    context.waker.wake_by_ref();
     Ok(())
 }

objdiff-core/src/jobs/objdiff.rs

@@ -0,0 +1,199 @@
+use std::{path::PathBuf, sync::mpsc::Receiver, task::Waker};
+
+use anyhow::{anyhow, Error, Result};
+use time::OffsetDateTime;
+
+use crate::{
+    build::{run_make, BuildConfig, BuildStatus},
+    config::SymbolMappings,
+    diff::{diff_objs, DiffObjConfig, MappingConfig, ObjDiff},
+    jobs::{start_job, update_status, Job, JobContext, JobResult, JobState},
+    obj::{read, ObjInfo},
+};
+
+pub struct ObjDiffConfig {
+    pub build_config: BuildConfig,
+    pub build_base: bool,
+    pub build_target: bool,
+    pub target_path: Option<PathBuf>,
+    pub base_path: Option<PathBuf>,
+    pub diff_obj_config: DiffObjConfig,
+    pub symbol_mappings: SymbolMappings,
+    pub selecting_left: Option<String>,
+    pub selecting_right: Option<String>,
+}
+
+pub struct ObjDiffResult {
+    pub first_status: BuildStatus,
+    pub second_status: BuildStatus,
+    pub first_obj: Option<(ObjInfo, ObjDiff)>,
+    pub second_obj: Option<(ObjInfo, ObjDiff)>,
+    pub time: OffsetDateTime,
+}
+
+fn run_build(
+    context: &JobContext,
+    cancel: Receiver<()>,
+    mut config: ObjDiffConfig,
+) -> Result<Box<ObjDiffResult>> {
+    // Use the per-object symbol mappings, we don't set mappings globally
+    config.diff_obj_config.symbol_mappings = MappingConfig {
+        mappings: config.symbol_mappings,
+        selecting_left: config.selecting_left,
+        selecting_right: config.selecting_right,
+    };
+
+    let mut target_path_rel = None;
+    let mut base_path_rel = None;
+    if config.build_target || config.build_base {
+        let project_dir = config
+            .build_config
+            .project_dir
+            .as_ref()
+            .ok_or_else(|| Error::msg("Missing project dir"))?;
+        if let Some(target_path) = &config.target_path {
+            target_path_rel = Some(target_path.strip_prefix(project_dir).map_err(|_| {
+                anyhow!(
+                    "Target path '{}' doesn't begin with '{}'",
+                    target_path.display(),
+                    project_dir.display()
+                )
+            })?);
+        }
+        if let Some(base_path) = &config.base_path {
+            base_path_rel = Some(base_path.strip_prefix(project_dir).map_err(|_| {
+                anyhow!(
+                    "Base path '{}' doesn't begin with '{}'",
+                    base_path.display(),
+                    project_dir.display()
+                )
+            })?);
+        };
+    }
+
+    let mut total = 1;
+    if config.build_target && target_path_rel.is_some() {
+        total += 1;
+    }
+    if config.build_base && base_path_rel.is_some() {
+        total += 1;
+    }
+    if config.target_path.is_some() {
+        total += 1;
+    }
+    if config.base_path.is_some() {
+        total += 1;
+    }
+
+    let mut step_idx = 0;
+    let mut first_status = match target_path_rel {
+        Some(target_path_rel) if config.build_target => {
+            update_status(
+                context,
+                format!("Building target {}", target_path_rel.display()),
+                step_idx,
+                total,
+                &cancel,
+            )?;
+            step_idx += 1;
+            run_make(&config.build_config, target_path_rel)
+        }
+        _ => BuildStatus::default(),
+    };
+
+    let mut second_status = match base_path_rel {
+        Some(base_path_rel) if config.build_base => {
+            update_status(
+                context,
+                format!("Building base {}", base_path_rel.display()),
+                step_idx,
+                total,
+                &cancel,
+            )?;
+            step_idx += 1;
+            run_make(&config.build_config, base_path_rel)
+        }
+        _ => BuildStatus::default(),
+    };
+
+    let time = OffsetDateTime::now_utc();
+
+    let first_obj = match &config.target_path {
+        Some(target_path) if first_status.success => {
+            update_status(
+                context,
+                format!("Loading target {}", target_path.display()),
+                step_idx,
+                total,
+                &cancel,
+            )?;
+            step_idx += 1;
+            match read::read(target_path, &config.diff_obj_config) {
+                Ok(obj) => Some(obj),
+                Err(e) => {
+                    first_status = BuildStatus {
+                        success: false,
+                        stdout: format!("Loading object '{}'", target_path.display()),
+                        stderr: format!("{:#}", e),
+                        ..Default::default()
+                    };
+                    None
+                }
+            }
+        }
+        Some(_) => {
+            step_idx += 1;
+            None
+        }
+        _ => None,
+    };
+
+    let second_obj = match &config.base_path {
+        Some(base_path) if second_status.success => {
+            update_status(
+                context,
+                format!("Loading base {}", base_path.display()),
+                step_idx,
+                total,
+                &cancel,
+            )?;
+            step_idx += 1;
+            match read::read(base_path, &config.diff_obj_config) {
+                Ok(obj) => Some(obj),
+                Err(e) => {
+                    second_status = BuildStatus {
+                        success: false,
+                        stdout: format!("Loading object '{}'", base_path.display()),
+                        stderr: format!("{:#}", e),
+                        ..Default::default()
+                    };
+                    None
+                }
+            }
+        }
+        Some(_) => {
+            step_idx += 1;
+            None
+        }
+        _ => None,
+    };
+
+    update_status(context, "Performing diff".to_string(), step_idx, total, &cancel)?;
+    step_idx += 1;
+    let result = diff_objs(&config.diff_obj_config, first_obj.as_ref(), second_obj.as_ref(), None)?;
+
+    update_status(context, "Complete".to_string(), step_idx, total, &cancel)?;
+    Ok(Box::new(ObjDiffResult {
+        first_status,
+        second_status,
+        first_obj: first_obj.and_then(|o| result.left.map(|d| (o, d))),
+        second_obj: second_obj.and_then(|o| result.right.map(|d| (o, d))),
+        time,
+    }))
+}
+
+pub fn start_build(waker: Waker, config: ObjDiffConfig) -> JobState {
+    start_job(waker, "Build", Job::ObjDiff, move |context, cancel| {
+        run_build(&context, cancel, config).map(|result| JobResult::ObjDiff(Some(result)))
+    })
+}

objdiff-core/src/jobs/update.rs

@@ -3,14 +3,19 @@ use std::{
     fs::File,
     path::PathBuf,
     sync::mpsc::Receiver,
+    task::Waker,
 };
 
 use anyhow::{Context, Result};
+pub use self_update; // Re-export self_update crate
+use self_update::update::ReleaseUpdate;
 
-use crate::{
-    jobs::{start_job, update_status, Job, JobContext, JobResult, JobState},
-    update::build_updater,
-};
+use crate::jobs::{start_job, update_status, Job, JobContext, JobResult, JobState};
+
+pub struct UpdateConfig {
+    pub build_updater: fn() -> Result<Box<dyn ReleaseUpdate>>,
+    pub bin_name: String,
+}
 
 pub struct UpdateResult {
     pub exe_path: PathBuf,
@@ -19,16 +24,15 @@ pub struct UpdateResult {
 fn run_update(
     status: &JobContext,
     cancel: Receiver<()>,
-    bin_name: String,
+    config: UpdateConfig,
 ) -> Result<Box<UpdateResult>> {
     update_status(status, "Fetching latest release".to_string(), 0, 3, &cancel)?;
-    let updater = build_updater().context("Failed to create release updater")?;
+    let updater = (config.build_updater)().context("Failed to create release updater")?;
     let latest_release = updater.get_latest_release()?;
-    let asset = latest_release
-        .assets
-        .iter()
-        .find(|a| a.name == bin_name)
-        .ok_or_else(|| anyhow::Error::msg(format!("No release asset for {bin_name}")))?;
+    let asset =
+        latest_release.assets.iter().find(|a| a.name == config.bin_name).ok_or_else(|| {
+            anyhow::Error::msg(format!("No release asset for {}", config.bin_name))
+        })?;
 
     update_status(status, "Downloading release".to_string(), 1, 3, &cancel)?;
     let tmp_dir = tempfile::Builder::new().prefix("update").tempdir_in(current_dir()?)?;
@@ -47,9 +51,7 @@ fn run_update(
     #[cfg(unix)]
     {
         use std::{fs, os::unix::fs::PermissionsExt};
-        let mut perms = fs::metadata(&target_file)?.permissions();
-        perms.set_mode(0o755);
-        fs::set_permissions(&target_file, perms)?;
+        fs::set_permissions(&target_file, fs::Permissions::from_mode(0o755))?;
     }
     tmp_dir.close()?;
 
@@ -57,8 +59,8 @@ fn run_update(
     Ok(Box::from(UpdateResult { exe_path: target_file }))
 }
 
-pub fn start_update(ctx: &egui::Context, bin_name: String) -> JobState {
-    start_job(ctx, "Update app", Job::Update, move |context, cancel| {
-        run_update(&context, cancel, bin_name).map(JobResult::Update)
+pub fn start_update(waker: Waker, config: UpdateConfig) -> JobState {
+    start_job(waker, "Update app", Job::Update, move |context, cancel| {
+        run_update(&context, cancel, config).map(JobResult::Update)
     })
 }

objdiff-core/src/lib.rs

@@ -2,10 +2,14 @@
 pub mod arch;
 #[cfg(feature = "bindings")]
 pub mod bindings;
+#[cfg(feature = "build")]
+pub mod build;
 #[cfg(feature = "config")]
 pub mod config;
 #[cfg(feature = "any-arch")]
 pub mod diff;
+#[cfg(feature = "build")]
+pub mod jobs;
 #[cfg(feature = "any-arch")]
 pub mod obj;
 #[cfg(feature = "any-arch")]

objdiff-core/src/obj/mod.rs

@@ -85,6 +85,9 @@ pub enum ObjInsArg {
 }
 
 impl ObjInsArg {
+    #[inline]
+    pub fn is_plain_text(&self) -> bool { matches!(self, ObjInsArg::PlainText(_)) }
+
     pub fn loose_eq(&self, other: &ObjInsArg) -> bool {
         match (self, other) {
             (ObjInsArg::Arg(a), ObjInsArg::Arg(b)) => a.loose_eq(b),
@@ -100,7 +103,7 @@ pub struct ObjIns {
     pub address: u64,
     pub size: u8,
     pub op: u16,
-    pub mnemonic: String,
+    pub mnemonic: Cow<'static, str>,
     pub args: Vec<ObjInsArg>,
     pub reloc: Option<ObjReloc>,
     pub branch_dest: Option<u64>,
@@ -112,6 +115,14 @@ pub struct ObjIns {
     pub orig: Option<String>,
 }
 
+impl ObjIns {
+    /// Iterate over non-PlainText arguments.
+    #[inline]
+    pub fn iter_args(&self) -> impl DoubleEndedIterator<Item = &ObjInsArg> {
+        self.args.iter().filter(|a| !a.is_plain_text())
+    }
+}
+
 #[derive(Debug, Copy, Clone, Eq, PartialEq, Hash, Default)]
 pub enum ObjSymbolKind {
     #[default]

objdiff-core/src/obj/read.rs

@@ -65,10 +65,7 @@ fn to_obj_symbol(
         flags = ObjSymbolFlagSet(flags.0 | ObjSymbolFlags::Hidden);
     }
     #[cfg(feature = "ppc")]
-    if arch
-        .ppc()
-        .and_then(|a| a.extab.as_ref())
-        .map_or(false, |e| e.contains_key(&symbol.index().0))
+    if arch.ppc().and_then(|a| a.extab.as_ref()).is_some_and(|e| e.contains_key(&symbol.index().0))
     {
         flags = ObjSymbolFlagSet(flags.0 | ObjSymbolFlags::HasExtra);
     }
@@ -335,6 +332,10 @@ fn relocations_by_section(
                 };
                 symbol
             }
+            RelocationTarget::Absolute => {
+                log::warn!("Ignoring absolute relocation @ {}:{:#x}", section.name, address);
+                continue;
+            }
             _ => bail!("Unhandled relocation target: {:?}", reloc.target()),
         };
         let flags = reloc.flags(); // TODO validate reloc here?

objdiff-gui/Cargo.toml

@@ -25,11 +25,11 @@ wsl = []
 
 [dependencies]
 anyhow = "1.0"
-bytes = "1.7"
+bytes = "1.9"
 cfg-if = "1.0"
 const_format = "0.2"
 cwdemangle = "1.0"
-cwextab = "1.0.2"
+cwextab = "1.0"
 dirs = "5.0"
 egui = "0.29"
 egui_extras = "0.29"
@@ -38,11 +38,10 @@ float-ord = "0.3"
 font-kit = "0.14"
 globset = { version = "0.4", features = ["serde1"] }
 log = "0.4"
-notify = { git = "https://github.com/notify-rs/notify", rev = "128bf6230c03d39dbb7f301ff7b20e594e34c3a2" }
 objdiff-core = { path = "../objdiff-core", features = ["all"] }
 open = "5.3"
 png = "0.17"
-pollster = "0.3"
+pollster = "0.4"
 regex = "1.11"
 rfd = { version = "0.15" } #, default-features = false, features = ['xdg-portal']
 rlwinmdec = "1.0"
@@ -51,7 +50,6 @@ serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 shell-escape = "0.1"
 strum = { version = "0.26", features = ["derive"] }
-tempfile = "3.13"
 time = { version = "0.3", features = ["formatting", "local-offset"] }
 
 # Keep version in sync with egui
@@ -76,18 +74,7 @@ features = [
 optional = true
 default-features = false
 
-# For Linux static binaries, use rustls
-[target.'cfg(target_os = "linux")'.dependencies]
-reqwest = { version = "0.12", default-features = false, features = ["blocking", "json", "multipart", "rustls-tls"] }
-self_update = { version = "0.41", default-features = false, features = ["rustls"] }
-
-# For all other platforms, use native TLS
-[target.'cfg(not(target_os = "linux"))'.dependencies]
-reqwest = { version = "0.12", default-features = false, features = ["blocking", "json", "multipart", "default-tls"] }
-self_update = "0.41"
-
 [target.'cfg(windows)'.dependencies]
-path-slash = "0.2"
 winapi = "0.3"
 
 [target.'cfg(unix)'.dependencies]
@@ -95,7 +82,7 @@ exec = "0.3"
 
 # native:
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies]
-tracing-subscriber = "0.3"
+tracing-subscriber = { version = "0.3", features = ["env-filter"] }
 
 # web:
 [target.'cfg(target_arch = "wasm32")'.dependencies]

objdiff-gui/src/app.rs

@@ -11,24 +11,22 @@ use std::{
 };
 
 use filetime::FileTime;
-use globset::{Glob, GlobSet};
-use notify::{RecursiveMode, Watcher};
+use globset::Glob;
 use objdiff_core::{
+    build::watcher::{create_watcher, Watcher},
     config::{
-        build_globset, save_project_config, ProjectConfig, ProjectConfigInfo, ProjectObject,
-        ScratchConfig, SymbolMappings, DEFAULT_WATCH_PATTERNS,
+        build_globset, default_watch_patterns, save_project_config, ProjectConfig,
+        ProjectConfigInfo, ProjectObject, ScratchConfig, SymbolMappings, DEFAULT_WATCH_PATTERNS,
     },
     diff::DiffObjConfig,
+    jobs::{Job, JobQueue, JobResult},
 };
 use time::UtcOffset;
 
 use crate::{
     app_config::{deserialize_config, AppConfigVersion},
     config::{load_project_config, ProjectObjectNode},
-    jobs::{
-        objdiff::{start_build, ObjDiffConfig},
-        Job, JobQueue, JobResult, JobStatus,
-    },
+    jobs::{create_objdiff_config, egui_waker, start_build},
     views::{
         appearance::{appearance_window, Appearance},
         config::{
@@ -121,11 +119,6 @@ impl From<&ProjectObject> for ObjectConfig {
 #[inline]
 fn bool_true() -> bool { true }
 
-#[inline]
-fn default_watch_patterns() -> Vec<Glob> {
-    DEFAULT_WATCH_PATTERNS.iter().map(|s| Glob::new(s).unwrap()).collect()
-}
-
 pub struct AppState {
     pub config: AppConfig,
     pub objects: Vec<ProjectObject>,
@@ -399,7 +392,7 @@ pub struct App {
     view_state: ViewState,
     state: AppStateRef,
     modified: Arc<AtomicBool>,
-    watcher: Option<notify::RecommendedWatcher>,
+    watcher: Option<Watcher>,
     app_path: Option<PathBuf>,
     relaunch_path: Rc<Mutex<Option<PathBuf>>>,
     should_relaunch: bool,
@@ -474,59 +467,27 @@ impl App {
 
         let ViewState { jobs, diff_state, config_state, .. } = &mut self.view_state;
 
-        let mut results = vec![];
-        for (job, result) in jobs.iter_finished() {
-            match result {
-                Ok(result) => {
-                    log::info!("Job {} finished", job.id);
-                    match result {
-                        JobResult::None => {
-                            if let Some(err) = &job.context.status.read().unwrap().error {
-                                log::error!("{:?}", err);
-                            }
-                        }
-                        JobResult::Update(state) => {
-                            if let Ok(mut guard) = self.relaunch_path.lock() {
-                                *guard = Some(state.exe_path);
-                                self.should_relaunch = true;
-                            }
-                        }
-                        _ => results.push(result),
-                    }
-                }
-                Err(err) => {
-                    let err = if let Some(msg) = err.downcast_ref::<&'static str>() {
-                        anyhow::Error::msg(*msg)
-                    } else if let Some(msg) = err.downcast_ref::<String>() {
-                        anyhow::Error::msg(msg.clone())
-                    } else {
-                        anyhow::Error::msg("Thread panicked")
-                    };
-                    let result = job.context.status.write();
-                    if let Ok(mut guard) = result {
-                        guard.error = Some(err);
-                    } else {
-                        drop(result);
-                        job.context.status = Arc::new(RwLock::new(JobStatus {
-                            title: "Error".to_string(),
-                            progress_percent: 0.0,
-                            progress_items: None,
-                            status: String::new(),
-                            error: Some(err),
-                        }));
-                    }
+        jobs.collect_results();
+        jobs.results.retain(|result| match result {
+            JobResult::Update(state) => {
+                if let Ok(mut guard) = self.relaunch_path.lock() {
+                    *guard = Some(state.exe_path.clone());
+                    self.should_relaunch = true;
                 }
+                false
             }
-        }
-        jobs.results.append(&mut results);
-        jobs.clear_finished();
-
+            _ => true,
+        });
         diff_state.pre_update(jobs, &self.state);
         config_state.pre_update(jobs, &self.state);
         debug_assert!(jobs.results.is_empty());
     }
 
     fn post_update(&mut self, ctx: &egui::Context, action: Option<DiffViewAction>) {
+        if action.is_some() {
+            ctx.request_repaint();
+        }
+
         self.appearance.post_update(ctx);
 
         let ViewState { jobs, diff_state, config_state, graphics_state, .. } = &mut self.view_state;
@@ -572,7 +533,7 @@ impl App {
                 match build_globset(&state.config.watch_patterns)
                     .map_err(anyhow::Error::new)
                     .and_then(|globset| {
-                        create_watcher(ctx.clone(), self.modified.clone(), project_dir, globset)
+                        create_watcher(self.modified.clone(), project_dir, globset, egui_waker(ctx))
                             .map_err(anyhow::Error::new)
                     }) {
                     Ok(watcher) => self.watcher = Some(watcher),
@@ -619,15 +580,15 @@ impl App {
             && state.config.selected_obj.is_some()
             && !jobs.is_running(Job::ObjDiff)
         {
-            jobs.push(start_build(ctx, ObjDiffConfig::from_state(state)));
+            start_build(ctx, jobs, create_objdiff_config(state));
             state.queue_build = false;
             state.queue_reload = false;
         } else if state.queue_reload && !jobs.is_running(Job::ObjDiff) {
-            let mut diff_config = ObjDiffConfig::from_state(state);
+            let mut diff_config = create_objdiff_config(state);
             // Don't build, just reload the current files
             diff_config.build_base = false;
             diff_config.build_target = false;
-            jobs.push(start_build(ctx, diff_config));
+            start_build(ctx, jobs, diff_config);
             state.queue_reload = false;
         }
 
@@ -854,40 +815,6 @@ impl eframe::App for App {
     }
 }
 
-fn create_watcher(
-    ctx: egui::Context,
-    modified: Arc<AtomicBool>,
-    project_dir: &Path,
-    patterns: GlobSet,
-) -> notify::Result<notify::RecommendedWatcher> {
-    let base_dir = project_dir.to_owned();
-    let mut watcher =
-        notify::recommended_watcher(move |res: notify::Result<notify::Event>| match res {
-            Ok(event) => {
-                if matches!(
-                    event.kind,
-                    notify::EventKind::Modify(..)
-                        | notify::EventKind::Create(..)
-                        | notify::EventKind::Remove(..)
-                ) {
-                    for path in &event.paths {
-                        let Ok(path) = path.strip_prefix(&base_dir) else {
-                            continue;
-                        };
-                        if patterns.is_match(path) {
-                            log::info!("File modified: {}", path.display());
-                            modified.store(true, Ordering::Relaxed);
-                            ctx.request_repaint();
-                        }
-                    }
-                }
-            }
-            Err(e) => log::error!("watch error: {e:?}"),
-        })?;
-    watcher.watch(project_dir, RecursiveMode::Recursive)?;
-    Ok(watcher)
-}
-
 #[inline]
 fn file_modified(path: &Path, last_ts: FileTime) -> bool {
     if let Ok(metadata) = fs::metadata(path) {

objdiff-gui/src/app_config.rs

@@ -71,6 +71,7 @@ impl ScratchConfigV1 {
             c_flags: self.c_flags,
             ctx_path: self.ctx_path,
             build_ctx: self.build_ctx.then_some(true),
+            preset_id: None,
         }
     }
 }

objdiff-gui/src/config.rs

@@ -12,6 +12,21 @@ pub enum ProjectObjectNode {
     Dir(String, Vec<ProjectObjectNode>),
 }
 
+fn join_single_dir_entries(nodes: &mut Vec<ProjectObjectNode>) {
+    for node in nodes {
+        if let ProjectObjectNode::Dir(my_name, my_nodes) = node {
+            join_single_dir_entries(my_nodes);
+            // If this directory consists of a single sub-directory...
+            if let [ProjectObjectNode::Dir(sub_name, sub_nodes)] = &mut my_nodes[..] {
+                // ... join the two names with a path separator and eliminate the layer
+                *my_name += "/";
+                *my_name += sub_name;
+                *my_nodes = std::mem::take(sub_nodes);
+            }
+        }
+    }
+}
+
 fn find_dir<'a>(
     name: &str,
     nodes: &'a mut Vec<ProjectObjectNode>,
@@ -60,6 +75,14 @@ fn build_nodes(
         let filename = path.file_name().unwrap().to_str().unwrap().to_string();
         out_nodes.push(ProjectObjectNode::Unit(filename, idx));
     }
+    // Within the top-level module directories, join paths. Leave the
+    // top-level name intact though since it's the module name.
+    for node in &mut nodes {
+        if let ProjectObjectNode::Dir(_, sub_nodes) = node {
+            join_single_dir_entries(sub_nodes);
+        }
+    }
+
     nodes
 }
 

objdiff-gui/src/hotkeys.rs

@@ -0,0 +1,108 @@
+use egui::{
+    style::ScrollAnimation, vec2, Context, Key, KeyboardShortcut, Modifiers, PointerButton,
+};
+
+fn any_widget_focused(ctx: &Context) -> bool { ctx.memory(|mem| mem.focused().is_some()) }
+
+pub fn enter_pressed(ctx: &Context) -> bool {
+    if any_widget_focused(ctx) {
+        return false;
+    }
+    ctx.input_mut(|i| {
+        i.key_pressed(Key::Enter)
+            || i.key_pressed(Key::Space)
+            || i.pointer.button_pressed(PointerButton::Extra2)
+    })
+}
+
+pub fn back_pressed(ctx: &Context) -> bool {
+    if any_widget_focused(ctx) {
+        return false;
+    }
+    ctx.input_mut(|i| {
+        i.key_pressed(Key::Backspace)
+            || i.key_pressed(Key::Escape)
+            || i.pointer.button_pressed(PointerButton::Extra1)
+    })
+}
+
+pub fn up_pressed(ctx: &Context) -> bool {
+    if any_widget_focused(ctx) {
+        return false;
+    }
+    ctx.input_mut(|i| i.key_pressed(Key::ArrowUp) || i.key_pressed(Key::W))
+}
+
+pub fn down_pressed(ctx: &Context) -> bool {
+    if any_widget_focused(ctx) {
+        return false;
+    }
+    ctx.input_mut(|i| i.key_pressed(Key::ArrowDown) || i.key_pressed(Key::S))
+}
+
+pub fn page_up_pressed(ctx: &Context) -> bool { ctx.input_mut(|i| i.key_pressed(Key::PageUp)) }
+
+pub fn page_down_pressed(ctx: &Context) -> bool { ctx.input_mut(|i| i.key_pressed(Key::PageDown)) }
+
+pub fn home_pressed(ctx: &Context) -> bool { ctx.input_mut(|i| i.key_pressed(Key::Home)) }
+
+pub fn end_pressed(ctx: &Context) -> bool { ctx.input_mut(|i| i.key_pressed(Key::End)) }
+
+pub fn check_scroll_hotkeys(ui: &mut egui::Ui, include_small_increments: bool) {
+    let ui_height = ui.available_rect_before_wrap().height();
+    if up_pressed(ui.ctx()) && include_small_increments {
+        ui.scroll_with_delta_animation(vec2(0.0, ui_height / 10.0), ScrollAnimation::none());
+    } else if down_pressed(ui.ctx()) && include_small_increments {
+        ui.scroll_with_delta_animation(vec2(0.0, -ui_height / 10.0), ScrollAnimation::none());
+    } else if page_up_pressed(ui.ctx()) {
+        ui.scroll_with_delta_animation(vec2(0.0, ui_height), ScrollAnimation::none());
+    } else if page_down_pressed(ui.ctx()) {
+        ui.scroll_with_delta_animation(vec2(0.0, -ui_height), ScrollAnimation::none());
+    } else if home_pressed(ui.ctx()) {
+        ui.scroll_with_delta_animation(vec2(0.0, f32::INFINITY), ScrollAnimation::none());
+    } else if end_pressed(ui.ctx()) {
+        ui.scroll_with_delta_animation(vec2(0.0, -f32::INFINITY), ScrollAnimation::none());
+    }
+}
+
+pub fn consume_up_key(ctx: &Context) -> bool {
+    if any_widget_focused(ctx) {
+        return false;
+    }
+    ctx.input_mut(|i| {
+        i.consume_key(Modifiers::NONE, Key::ArrowUp) || i.consume_key(Modifiers::NONE, Key::W)
+    })
+}
+
+pub fn consume_down_key(ctx: &Context) -> bool {
+    if any_widget_focused(ctx) {
+        return false;
+    }
+    ctx.input_mut(|i| {
+        i.consume_key(Modifiers::NONE, Key::ArrowDown) || i.consume_key(Modifiers::NONE, Key::S)
+    })
+}
+
+const OBJECT_FILTER_SHORTCUT: KeyboardShortcut = KeyboardShortcut::new(Modifiers::CTRL, Key::F);
+
+pub fn consume_object_filter_shortcut(ctx: &Context) -> bool {
+    ctx.input_mut(|i| i.consume_shortcut(&OBJECT_FILTER_SHORTCUT))
+}
+
+const SYMBOL_FILTER_SHORTCUT: KeyboardShortcut = KeyboardShortcut::new(Modifiers::CTRL, Key::S);
+
+pub fn consume_symbol_filter_shortcut(ctx: &Context) -> bool {
+    ctx.input_mut(|i| i.consume_shortcut(&SYMBOL_FILTER_SHORTCUT))
+}
+
+const CHANGE_TARGET_SHORTCUT: KeyboardShortcut = KeyboardShortcut::new(Modifiers::CTRL, Key::T);
+
+pub fn consume_change_target_shortcut(ctx: &Context) -> bool {
+    ctx.input_mut(|i| i.consume_shortcut(&CHANGE_TARGET_SHORTCUT))
+}
+
+const CHANGE_BASE_SHORTCUT: KeyboardShortcut = KeyboardShortcut::new(Modifiers::CTRL, Key::B);
+
+pub fn consume_change_base_shortcut(ctx: &Context) -> bool {
+    ctx.input_mut(|i| i.consume_shortcut(&CHANGE_BASE_SHORTCUT))
+}

objdiff-gui/src/jobs.rs

@@ -0,0 +1,138 @@
+use std::{
+    sync::Arc,
+    task::{Wake, Waker},
+};
+
+use anyhow::{bail, Result};
+use jobs::create_scratch;
+use objdiff_core::{
+    build::BuildConfig,
+    jobs,
+    jobs::{check_update::CheckUpdateConfig, objdiff, update::UpdateConfig, Job, JobQueue},
+};
+
+use crate::{
+    app::{AppConfig, AppState},
+    update::{build_updater, BIN_NAME_NEW, BIN_NAME_OLD},
+};
+
+struct EguiWaker(egui::Context);
+
+impl Wake for EguiWaker {
+    fn wake(self: Arc<Self>) { self.0.request_repaint(); }
+
+    fn wake_by_ref(self: &Arc<Self>) { self.0.request_repaint(); }
+}
+
+pub fn egui_waker(ctx: &egui::Context) -> Waker { Waker::from(Arc::new(EguiWaker(ctx.clone()))) }
+
+pub fn is_create_scratch_available(config: &AppConfig) -> bool {
+    let Some(selected_obj) = &config.selected_obj else {
+        return false;
+    };
+    selected_obj.target_path.is_some() && selected_obj.scratch.is_some()
+}
+
+pub fn start_create_scratch(
+    ctx: &egui::Context,
+    jobs: &mut JobQueue,
+    state: &AppState,
+    function_name: String,
+) {
+    match create_scratch_config(state, function_name) {
+        Ok(config) => {
+            jobs.push_once(Job::CreateScratch, || {
+                create_scratch::start_create_scratch(egui_waker(ctx), config)
+            });
+        }
+        Err(err) => {
+            log::error!("Failed to create scratch config: {err}");
+        }
+    }
+}
+
+fn create_scratch_config(
+    state: &AppState,
+    function_name: String,
+) -> Result<create_scratch::CreateScratchConfig> {
+    let Some(selected_obj) = &state.config.selected_obj else {
+        bail!("No object selected");
+    };
+    let Some(target_path) = &selected_obj.target_path else {
+        bail!("No target path for {}", selected_obj.name);
+    };
+    let Some(scratch_config) = &selected_obj.scratch else {
+        bail!("No scratch configuration for {}", selected_obj.name);
+    };
+    Ok(create_scratch::CreateScratchConfig {
+        build_config: BuildConfig::from(&state.config),
+        context_path: scratch_config.ctx_path.clone(),
+        build_context: scratch_config.build_ctx.unwrap_or(false),
+        compiler: scratch_config.compiler.clone().unwrap_or_default(),
+        platform: scratch_config.platform.clone().unwrap_or_default(),
+        compiler_flags: scratch_config.c_flags.clone().unwrap_or_default(),
+        function_name,
+        target_obj: target_path.to_path_buf(),
+        preset_id: scratch_config.preset_id,
+    })
+}
+
+impl From<&AppConfig> for BuildConfig {
+    fn from(config: &AppConfig) -> Self {
+        Self {
+            project_dir: config.project_dir.clone(),
+            custom_make: config.custom_make.clone(),
+            custom_args: config.custom_args.clone(),
+            selected_wsl_distro: config.selected_wsl_distro.clone(),
+        }
+    }
+}
+
+pub fn create_objdiff_config(state: &AppState) -> objdiff::ObjDiffConfig {
+    objdiff::ObjDiffConfig {
+        build_config: BuildConfig::from(&state.config),
+        build_base: state.config.build_base,
+        build_target: state.config.build_target,
+        target_path: state
+            .config
+            .selected_obj
+            .as_ref()
+            .and_then(|obj| obj.target_path.as_ref())
+            .cloned(),
+        base_path: state
+            .config
+            .selected_obj
+            .as_ref()
+            .and_then(|obj| obj.base_path.as_ref())
+            .cloned(),
+        diff_obj_config: state.config.diff_obj_config.clone(),
+        symbol_mappings: state
+            .config
+            .selected_obj
+            .as_ref()
+            .map(|obj| &obj.symbol_mappings)
+            .cloned()
+            .unwrap_or_default(),
+        selecting_left: state.selecting_left.clone(),
+        selecting_right: state.selecting_right.clone(),
+    }
+}
+
+pub fn start_build(ctx: &egui::Context, jobs: &mut JobQueue, config: objdiff::ObjDiffConfig) {
+    jobs.push_once(Job::ObjDiff, || objdiff::start_build(egui_waker(ctx), config));
+}
+
+pub fn start_check_update(ctx: &egui::Context, jobs: &mut JobQueue) {
+    jobs.push_once(Job::Update, || {
+        jobs::check_update::start_check_update(egui_waker(ctx), CheckUpdateConfig {
+            build_updater,
+            bin_names: vec![BIN_NAME_NEW.to_string(), BIN_NAME_OLD.to_string()],
+        })
+    });
+}
+
+pub fn start_update(ctx: &egui::Context, jobs: &mut JobQueue, bin_name: String) {
+    jobs.push_once(Job::Update, || {
+        jobs::update::start_update(egui_waker(ctx), UpdateConfig { build_updater, bin_name })
+    });
+}

objdiff-gui/src/jobs/check_update.rs

@@ -1,39 +0,0 @@
-use std::sync::mpsc::Receiver;
-
-use anyhow::{Context, Result};
-use self_update::{cargo_crate_version, update::Release};
-
-use crate::{
-    jobs::{start_job, update_status, Job, JobContext, JobResult, JobState},
-    update::{build_updater, BIN_NAME_NEW, BIN_NAME_OLD},
-};
-
-pub struct CheckUpdateResult {
-    pub update_available: bool,
-    pub latest_release: Release,
-    pub found_binary: Option<String>,
-}
-
-fn run_check_update(context: &JobContext, cancel: Receiver<()>) -> Result<Box<CheckUpdateResult>> {
-    update_status(context, "Fetching latest release".to_string(), 0, 1, &cancel)?;
-    let updater = build_updater().context("Failed to create release updater")?;
-    let latest_release = updater.get_latest_release()?;
-    let update_available =
-        self_update::version::bump_is_greater(cargo_crate_version!(), &latest_release.version)?;
-    // Find the binary name in the release assets
-    let found_binary = latest_release
-        .assets
-        .iter()
-        .find(|a| a.name == BIN_NAME_NEW)
-        .or_else(|| latest_release.assets.iter().find(|a| a.name == BIN_NAME_OLD))
-        .map(|a| a.name.clone());
-
-    update_status(context, "Complete".to_string(), 1, 1, &cancel)?;
-    Ok(Box::new(CheckUpdateResult { update_available, latest_release, found_binary }))
-}
-
-pub fn start_check_update(ctx: &egui::Context) -> JobState {
-    start_job(ctx, "Check for updates", Job::CheckUpdate, move |context, cancel| {
-        run_check_update(&context, cancel).map(|result| JobResult::CheckUpdate(Some(result)))
-    })
-}

objdiff-gui/src/jobs/objdiff.rs

@@ -1,328 +0,0 @@
-use std::{
-    path::{Path, PathBuf},
-    process::Command,
-    sync::mpsc::Receiver,
-};
-
-use anyhow::{anyhow, Error, Result};
-use objdiff_core::{
-    diff::{diff_objs, DiffObjConfig, MappingConfig, ObjDiff},
-    obj::{read, ObjInfo},
-};
-use time::OffsetDateTime;
-
-use crate::{
-    app::{AppConfig, AppState, ObjectConfig},
-    jobs::{start_job, update_status, Job, JobContext, JobResult, JobState},
-};
-
-pub struct BuildStatus {
-    pub success: bool,
-    pub cmdline: String,
-    pub stdout: String,
-    pub stderr: String,
-}
-
-impl Default for BuildStatus {
-    fn default() -> Self {
-        BuildStatus {
-            success: true,
-            cmdline: String::new(),
-            stdout: String::new(),
-            stderr: String::new(),
-        }
-    }
-}
-
-#[derive(Debug, Clone)]
-pub struct BuildConfig {
-    pub project_dir: Option<PathBuf>,
-    pub custom_make: Option<String>,
-    pub custom_args: Option<Vec<String>>,
-    #[allow(unused)]
-    pub selected_wsl_distro: Option<String>,
-}
-
-impl BuildConfig {
-    pub(crate) fn from_config(config: &AppConfig) -> Self {
-        Self {
-            project_dir: config.project_dir.clone(),
-            custom_make: config.custom_make.clone(),
-            custom_args: config.custom_args.clone(),
-            selected_wsl_distro: config.selected_wsl_distro.clone(),
-        }
-    }
-}
-
-pub struct ObjDiffConfig {
-    pub build_config: BuildConfig,
-    pub build_base: bool,
-    pub build_target: bool,
-    pub selected_obj: Option<ObjectConfig>,
-    pub diff_obj_config: DiffObjConfig,
-    pub selecting_left: Option<String>,
-    pub selecting_right: Option<String>,
-}
-
-impl ObjDiffConfig {
-    pub(crate) fn from_state(state: &AppState) -> Self {
-        Self {
-            build_config: BuildConfig::from_config(&state.config),
-            build_base: state.config.build_base,
-            build_target: state.config.build_target,
-            selected_obj: state.config.selected_obj.clone(),
-            diff_obj_config: state.config.diff_obj_config.clone(),
-            selecting_left: state.selecting_left.clone(),
-            selecting_right: state.selecting_right.clone(),
-        }
-    }
-}
-
-pub struct ObjDiffResult {
-    pub first_status: BuildStatus,
-    pub second_status: BuildStatus,
-    pub first_obj: Option<(ObjInfo, ObjDiff)>,
-    pub second_obj: Option<(ObjInfo, ObjDiff)>,
-    pub time: OffsetDateTime,
-}
-
-pub(crate) fn run_make(config: &BuildConfig, arg: &Path) -> BuildStatus {
-    let Some(cwd) = &config.project_dir else {
-        return BuildStatus {
-            success: false,
-            stderr: "Missing project dir".to_string(),
-            ..Default::default()
-        };
-    };
-    let make = config.custom_make.as_deref().unwrap_or("make");
-    let make_args = config.custom_args.as_deref().unwrap_or(&[]);
-    #[cfg(not(windows))]
-    let mut command = {
-        let mut command = Command::new(make);
-        command.current_dir(cwd).args(make_args).arg(arg);
-        command
-    };
-    #[cfg(windows)]
-    let mut command = {
-        use std::os::windows::process::CommandExt;
-
-        use path_slash::PathExt;
-        let mut command = if config.selected_wsl_distro.is_some() {
-            Command::new("wsl")
-        } else {
-            Command::new(make)
-        };
-        if let Some(distro) = &config.selected_wsl_distro {
-            // Strip distro root prefix \\wsl.localhost\{distro}
-            let wsl_path_prefix = format!("\\\\wsl.localhost\\{}", distro);
-            let cwd = match cwd.strip_prefix(wsl_path_prefix) {
-                Ok(new_cwd) => format!("/{}", new_cwd.to_slash_lossy().as_ref()),
-                Err(_) => cwd.to_string_lossy().to_string(),
-            };
-
-            command
-                .arg("--cd")
-                .arg(cwd)
-                .arg("-d")
-                .arg(distro)
-                .arg("--")
-                .arg(make)
-                .args(make_args)
-                .arg(arg.to_slash_lossy().as_ref());
-        } else {
-            command.current_dir(cwd).args(make_args).arg(arg.to_slash_lossy().as_ref());
-        }
-        command.creation_flags(winapi::um::winbase::CREATE_NO_WINDOW);
-        command
-    };
-    let mut cmdline = shell_escape::escape(command.get_program().to_string_lossy()).into_owned();
-    for arg in command.get_args() {
-        cmdline.push(' ');
-        cmdline.push_str(shell_escape::escape(arg.to_string_lossy()).as_ref());
-    }
-    let output = match command.output() {
-        Ok(output) => output,
-        Err(e) => {
-            return BuildStatus {
-                success: false,
-                cmdline,
-                stdout: Default::default(),
-                stderr: e.to_string(),
-            };
-        }
-    };
-    // Try from_utf8 first to avoid copying the buffer if it's valid, then fall back to from_utf8_lossy
-    let stdout = String::from_utf8(output.stdout)
-        .unwrap_or_else(|e| String::from_utf8_lossy(e.as_bytes()).into_owned());
-    let stderr = String::from_utf8(output.stderr)
-        .unwrap_or_else(|e| String::from_utf8_lossy(e.as_bytes()).into_owned());
-    BuildStatus { success: output.status.success(), cmdline, stdout, stderr }
-}
-
-fn run_build(
-    context: &JobContext,
-    cancel: Receiver<()>,
-    mut config: ObjDiffConfig,
-) -> Result<Box<ObjDiffResult>> {
-    let obj_config = config.selected_obj.ok_or_else(|| Error::msg("Missing obj path"))?;
-    // Use the per-object symbol mappings, we don't set mappings globally
-    config.diff_obj_config.symbol_mappings = MappingConfig {
-        mappings: obj_config.symbol_mappings,
-        selecting_left: config.selecting_left,
-        selecting_right: config.selecting_right,
-    };
-
-    let project_dir = config
-        .build_config
-        .project_dir
-        .as_ref()
-        .ok_or_else(|| Error::msg("Missing project dir"))?;
-    let target_path_rel = if let Some(target_path) = &obj_config.target_path {
-        Some(target_path.strip_prefix(project_dir).map_err(|_| {
-            anyhow!(
-                "Target path '{}' doesn't begin with '{}'",
-                target_path.display(),
-                project_dir.display()
-            )
-        })?)
-    } else {
-        None
-    };
-    let base_path_rel = if let Some(base_path) = &obj_config.base_path {
-        Some(base_path.strip_prefix(project_dir).map_err(|_| {
-            anyhow!(
-                "Base path '{}' doesn't begin with '{}'",
-                base_path.display(),
-                project_dir.display()
-            )
-        })?)
-    } else {
-        None
-    };
-
-    let mut total = 1;
-    if config.build_target && target_path_rel.is_some() {
-        total += 1;
-    }
-    if config.build_base && base_path_rel.is_some() {
-        total += 1;
-    }
-    if target_path_rel.is_some() {
-        total += 1;
-    }
-    if base_path_rel.is_some() {
-        total += 1;
-    }
-
-    let mut step_idx = 0;
-    let mut first_status = match target_path_rel {
-        Some(target_path_rel) if config.build_target => {
-            update_status(
-                context,
-                format!("Building target {}", target_path_rel.display()),
-                step_idx,
-                total,
-                &cancel,
-            )?;
-            step_idx += 1;
-            run_make(&config.build_config, target_path_rel)
-        }
-        _ => BuildStatus::default(),
-    };
-
-    let mut second_status = match base_path_rel {
-        Some(base_path_rel) if config.build_base => {
-            update_status(
-                context,
-                format!("Building base {}", base_path_rel.display()),
-                step_idx,
-                total,
-                &cancel,
-            )?;
-            step_idx += 1;
-            run_make(&config.build_config, base_path_rel)
-        }
-        _ => BuildStatus::default(),
-    };
-
-    let time = OffsetDateTime::now_utc();
-
-    let first_obj = match &obj_config.target_path {
-        Some(target_path) if first_status.success => {
-            update_status(
-                context,
-                format!("Loading target {}", target_path_rel.unwrap().display()),
-                step_idx,
-                total,
-                &cancel,
-            )?;
-            step_idx += 1;
-            match read::read(target_path, &config.diff_obj_config) {
-                Ok(obj) => Some(obj),
-                Err(e) => {
-                    first_status = BuildStatus {
-                        success: false,
-                        stdout: format!("Loading object '{}'", target_path.display()),
-                        stderr: format!("{:#}", e),
-                        ..Default::default()
-                    };
-                    None
-                }
-            }
-        }
-        Some(_) => {
-            step_idx += 1;
-            None
-        }
-        _ => None,
-    };
-
-    let second_obj = match &obj_config.base_path {
-        Some(base_path) if second_status.success => {
-            update_status(
-                context,
-                format!("Loading base {}", base_path_rel.unwrap().display()),
-                step_idx,
-                total,
-                &cancel,
-            )?;
-            step_idx += 1;
-            match read::read(base_path, &config.diff_obj_config) {
-                Ok(obj) => Some(obj),
-                Err(e) => {
-                    second_status = BuildStatus {
-                        success: false,
-                        stdout: format!("Loading object '{}'", base_path.display()),
-                        stderr: format!("{:#}", e),
-                        ..Default::default()
-                    };
-                    None
-                }
-            }
-        }
-        Some(_) => {
-            step_idx += 1;
-            None
-        }
-        _ => None,
-    };
-
-    update_status(context, "Performing diff".to_string(), step_idx, total, &cancel)?;
-    step_idx += 1;
-    let result = diff_objs(&config.diff_obj_config, first_obj.as_ref(), second_obj.as_ref(), None)?;
-
-    update_status(context, "Complete".to_string(), step_idx, total, &cancel)?;
-    Ok(Box::new(ObjDiffResult {
-        first_status,
-        second_status,
-        first_obj: first_obj.and_then(|o| result.left.map(|d| (o, d))),
-        second_obj: second_obj.and_then(|o| result.right.map(|d| (o, d))),
-        time,
-    }))
-}
-
-pub fn start_build(ctx: &egui::Context, config: ObjDiffConfig) -> JobState {
-    start_job(ctx, "Build", Job::ObjDiff, move |context, cancel| {
-        run_build(&context, cancel, config).map(|result| JobResult::ObjDiff(Some(result)))
-    })
-}

objdiff-gui/src/main.rs

@@ -4,6 +4,7 @@ mod app;
 mod app_config;
 mod config;
 mod fonts;
+mod hotkeys;
 mod jobs;
 mod update;
 mod views;

objdiff-gui/src/update.rs

@@ -1,5 +1,7 @@
+use anyhow::Result;
 use cfg_if::cfg_if;
 use const_format::formatcp;
+use objdiff_core::jobs::update::self_update;
 use self_update::{cargo_crate_version, update::ReleaseUpdate};
 
 pub const OS: &str = std::env::consts::OS;
@@ -26,8 +28,8 @@ pub const BIN_NAME_OLD: &str = formatcp!("objdiff-{}-{}{}", OS, ARCH, std::env::
 pub const RELEASE_URL: &str =
     formatcp!("https://github.com/{}/{}/releases/latest", GITHUB_USER, GITHUB_REPO);
 
-pub fn build_updater() -> self_update::errors::Result<Box<dyn ReleaseUpdate>> {
-    self_update::backends::github::Update::configure()
+pub fn build_updater() -> Result<Box<dyn ReleaseUpdate>> {
+    Ok(self_update::backends::github::Update::configure()
         .repo_owner(GITHUB_USER)
         .repo_name(GITHUB_REPO)
         // bin_name is required, but unused?
@@ -35,5 +37,5 @@ pub fn build_updater() -> self_update::errors::Result<Box<dyn ReleaseUpdate>> {
         .no_confirm(true)
         .show_output(false)
         .current_version(cargo_crate_version!())
-        .build()
+        .build()?)
 }

objdiff-gui/src/views/config.rs

@@ -15,17 +15,15 @@ use globset::Glob;
 use objdiff_core::{
     config::{ProjectObject, DEFAULT_WATCH_PATTERNS},
     diff::{ArmArchVersion, ArmR9Usage, MipsAbi, MipsInstrCategory, X86Formatter},
+    jobs::{check_update::CheckUpdateResult, Job, JobQueue, JobResult},
 };
 use strum::{EnumMessage, VariantArray};
 
 use crate::{
     app::{AppConfig, AppState, AppStateRef, ObjectConfig},
     config::ProjectObjectNode,
-    jobs::{
-        check_update::{start_check_update, CheckUpdateResult},
-        update::start_update,
-        Job, JobQueue, JobResult,
-    },
+    hotkeys,
+    jobs::{start_check_update, start_update},
     update::RELEASE_URL,
     views::{
         appearance::Appearance,
@@ -118,11 +116,11 @@ impl ConfigViewState {
 
         if self.queue_check_update {
             self.queue_check_update = false;
-            jobs.push_once(Job::CheckUpdate, || start_check_update(ctx));
+            start_check_update(ctx, jobs);
         }
 
         if let Some(bin_name) = self.queue_update.take() {
-            jobs.push_once(Job::Update, || start_update(ctx, bin_name));
+            start_update(ctx, jobs, bin_name);
         }
     }
 }
@@ -254,7 +252,11 @@ pub fn config_ui(
         }
     } else {
         let had_search = !config_state.object_search.is_empty();
-        egui::TextEdit::singleline(&mut config_state.object_search).hint_text("Filter").ui(ui);
+        let response =
+            egui::TextEdit::singleline(&mut config_state.object_search).hint_text("Filter").ui(ui);
+        if hotkeys::consume_object_filter_shortcut(ui.ctx()) {
+            response.request_focus();
+        }
 
         let mut root_open = None;
         let mut node_open = NodeOpen::Default;

objdiff-gui/src/views/data_diff.rs

@@ -7,11 +7,14 @@ use objdiff_core::{
 };
 use time::format_description;
 
-use crate::views::{
-    appearance::Appearance,
-    column_layout::{render_header, render_table},
-    symbol_diff::{DiffViewAction, DiffViewNavigation, DiffViewState},
-    write_text,
+use crate::{
+    hotkeys,
+    views::{
+        appearance::Appearance,
+        column_layout::{render_header, render_table},
+        symbol_diff::{DiffViewAction, DiffViewNavigation, DiffViewState},
+        write_text,
+    },
 };
 
 const BYTES_PER_ROW: usize = 16;
@@ -176,6 +179,8 @@ fn data_table_ui(
     let left_diffs = left_section.map(|(_, section)| split_diffs(&section.data_diff));
     let right_diffs = right_section.map(|(_, section)| split_diffs(&section.data_diff));
 
+    hotkeys::check_scroll_hotkeys(ui, true);
+
     render_table(ui, available_width, 2, config.code_font.size, total_rows, |row, column| {
         let i = row.index();
         let address = i * BYTES_PER_ROW;
@@ -213,8 +218,8 @@ pub fn data_diff_ui(
     let right_ctx = SectionDiffContext::new(result.second_obj.as_ref(), section_name);
 
     // If both sides are missing a symbol, switch to symbol diff view
-    if !right_ctx.map_or(false, |ctx| ctx.has_section())
-        && !left_ctx.map_or(false, |ctx| ctx.has_section())
+    if !right_ctx.is_some_and(|ctx| ctx.has_section())
+        && !left_ctx.is_some_and(|ctx| ctx.has_section())
     {
         return Some(DiffViewAction::Navigate(DiffViewNavigation::symbol_diff()));
     }
@@ -224,7 +229,7 @@ pub fn data_diff_ui(
     render_header(ui, available_width, 2, |ui, column| {
         if column == 0 {
             // Left column
-            if ui.button("⏴ Back").clicked() {
+            if ui.button("⏴ Back").clicked() || hotkeys::back_pressed(ui.ctx()) {
                 ret = Some(DiffViewAction::Navigate(DiffViewNavigation::symbol_diff()));
             }
 

objdiff-gui/src/views/extab_diff.rs

@@ -5,13 +5,16 @@ use objdiff_core::{
 };
 use time::format_description;
 
-use crate::views::{
-    appearance::Appearance,
-    column_layout::{render_header, render_strips},
-    function_diff::FunctionDiffContext,
-    symbol_diff::{
-        match_color_for_symbol, DiffViewAction, DiffViewNavigation, DiffViewState, SymbolRefByName,
-        View,
+use crate::{
+    hotkeys,
+    views::{
+        appearance::Appearance,
+        column_layout::{render_header, render_strips},
+        function_diff::FunctionDiffContext,
+        symbol_diff::{
+            match_color_for_symbol, DiffViewAction, DiffViewNavigation, DiffViewState,
+            SymbolRefByName, View,
+        },
     },
 };
 
@@ -101,7 +104,7 @@ pub fn extab_diff_ui(
     let right_diff_symbol = right_ctx.and_then(|ctx| {
         ctx.symbol_ref.and_then(|symbol_ref| ctx.diff.symbol_diff(symbol_ref).target_symbol)
     });
-    if left_diff_symbol.is_some() && right_ctx.map_or(false, |ctx| !ctx.has_symbol()) {
+    if left_diff_symbol.is_some() && right_ctx.is_some_and(|ctx| !ctx.has_symbol()) {
         let (right_section, right_symbol) =
             right_ctx.unwrap().obj.section_symbol(left_diff_symbol.unwrap());
         let symbol_ref = SymbolRefByName::new(right_symbol, right_section);
@@ -111,7 +114,7 @@ pub fn extab_diff_ui(
             left_symbol: state.symbol_state.left_symbol.clone(),
             right_symbol: Some(symbol_ref),
         }));
-    } else if right_diff_symbol.is_some() && left_ctx.map_or(false, |ctx| !ctx.has_symbol()) {
+    } else if right_diff_symbol.is_some() && left_ctx.is_some_and(|ctx| !ctx.has_symbol()) {
         let (left_section, left_symbol) =
             left_ctx.unwrap().obj.section_symbol(right_diff_symbol.unwrap());
         let symbol_ref = SymbolRefByName::new(left_symbol, left_section);
@@ -124,8 +127,8 @@ pub fn extab_diff_ui(
     }
 
     // If both sides are missing a symbol, switch to symbol diff view
-    if right_ctx.map_or(false, |ctx| !ctx.has_symbol())
-        && left_ctx.map_or(false, |ctx| !ctx.has_symbol())
+    if right_ctx.is_some_and(|ctx| !ctx.has_symbol())
+        && left_ctx.is_some_and(|ctx| !ctx.has_symbol())
     {
         return Some(DiffViewAction::Navigate(DiffViewNavigation::symbol_diff()));
     }
@@ -136,7 +139,7 @@ pub fn extab_diff_ui(
         if column == 0 {
             // Left column
             ui.horizontal(|ui| {
-                if ui.button("⏴ Back").clicked() {
+                if ui.button("⏴ Back").clicked() || hotkeys::back_pressed(ui.ctx()) {
                     ret = Some(DiffViewAction::Navigate(DiffViewNavigation::symbol_diff()));
                 }
                 ui.separator();
@@ -144,7 +147,7 @@ pub fn extab_diff_ui(
                     .add_enabled(
                         !state.scratch_running
                             && state.scratch_available
-                            && left_ctx.map_or(false, |ctx| ctx.has_symbol()),
+                            && left_ctx.is_some_and(|ctx| ctx.has_symbol()),
                         egui::Button::new("📲 decomp.me"),
                     )
                     .on_hover_text_at_pointer("Create a new scratch on decomp.me (beta)")
@@ -232,6 +235,8 @@ pub fn extab_diff_ui(
         }
     });
 
+    hotkeys::check_scroll_hotkeys(ui, true);
+
     // Table
     render_strips(ui, available_width, 2, |ui, column| {
         if column == 0 {

objdiff-gui/src/views/function_diff.rs

@@ -1,4 +1,4 @@
-use std::default::Default;
+use std::{cmp::Ordering, default::Default};
 
 use egui::{text::LayoutJob, Id, Label, Response, RichText, Sense, Widget};
 use egui_extras::TableRow;
@@ -14,12 +14,15 @@ use objdiff_core::{
 };
 use time::format_description;
 
-use crate::views::{
-    appearance::Appearance,
-    column_layout::{render_header, render_strips, render_table},
-    symbol_diff::{
-        match_color_for_symbol, symbol_list_ui, DiffViewAction, DiffViewNavigation, DiffViewState,
-        SymbolDiffContext, SymbolFilter, SymbolRefByName, SymbolViewState, View,
+use crate::{
+    hotkeys,
+    views::{
+        appearance::Appearance,
+        column_layout::{render_header, render_strips, render_table},
+        symbol_diff::{
+            match_color_for_symbol, symbol_list_ui, DiffViewAction, DiffViewNavigation,
+            DiffViewState, SymbolDiffContext, SymbolFilter, SymbolRefByName, SymbolViewState, View,
+        },
     },
 };
 
@@ -120,7 +123,15 @@ fn ins_hover_ui(
 
         if let Some(reloc) = &ins.reloc {
             ui.label(format!("Relocation type: {}", obj.arch.display_reloc(reloc.flags)));
-            ui.colored_label(appearance.highlight_color, format!("Name: {}", reloc.target.name));
+            let addend_str = match reloc.addend.cmp(&0i64) {
+                Ordering::Greater => format!("+{:x}", reloc.addend),
+                Ordering::Less => format!("-{:x}", -reloc.addend),
+                _ => "".to_string(),
+            };
+            ui.colored_label(
+                appearance.highlight_color,
+                format!("Name: {}{}", reloc.target.name, addend_str),
+            );
             if let Some(orig_section_index) = reloc.target.orig_section_index {
                 if let Some(section) =
                     obj.sections.iter().find(|s| s.orig_index == orig_section_index)
@@ -132,23 +143,27 @@ fn ins_hover_ui(
                 }
                 ui.colored_label(
                     appearance.highlight_color,
-                    format!("Address: {:x}", reloc.target.address),
+                    format!("Address: {:x}{}", reloc.target.address, addend_str),
                 );
                 ui.colored_label(
                     appearance.highlight_color,
                     format!("Size: {:x}", reloc.target.size),
                 );
-                if let Some(s) = obj
-                    .arch
-                    .guess_data_type(ins)
-                    .and_then(|ty| obj.arch.display_data_type(ty, &reloc.target.bytes))
-                {
-                    ui.colored_label(appearance.highlight_color, s);
+                if reloc.addend >= 0 && reloc.target.bytes.len() > reloc.addend as usize {
+                    if let Some(s) = obj.arch.guess_data_type(ins).and_then(|ty| {
+                        obj.arch.display_data_type(ty, &reloc.target.bytes[reloc.addend as usize..])
+                    }) {
+                        ui.colored_label(appearance.highlight_color, s);
+                    }
                 }
             } else {
                 ui.colored_label(appearance.highlight_color, "Extern".to_string());
             }
         }
+
+        if let Some(decoded) = rlwinmdec::decode(&ins.formatted) {
+            ui.colored_label(appearance.highlight_color, decoded.trim());
+        }
     });
 }
 
@@ -292,10 +307,14 @@ fn diff_text_ui(
                 base_color = appearance.diff_colors[diff.idx % appearance.diff_colors.len()]
             }
         }
-        DiffText::Symbol(sym) => {
+        DiffText::Symbol(sym, diff) => {
             let name = sym.demangled_name.as_ref().unwrap_or(&sym.name);
             label_text = name.clone();
-            base_color = appearance.emphasized_text_color;
+            if let Some(diff) = diff {
+                base_color = appearance.diff_colors[diff.idx % appearance.diff_colors.len()]
+            } else {
+                base_color = appearance.emphasized_text_color;
+            }
         }
         DiffText::Spacing(n) => {
             ui.add_space(n as f32 * space_width);
@@ -428,6 +447,7 @@ fn asm_table_ui(
     };
     if left_len.is_some() && right_len.is_some() {
         // Joint view
+        hotkeys::check_scroll_hotkeys(ui, true);
         render_table(
             ui,
             available_width,
@@ -463,6 +483,7 @@ fn asm_table_ui(
             if column == 0 {
                 if let Some(ctx) = left_ctx {
                     if ctx.has_symbol() {
+                        hotkeys::check_scroll_hotkeys(ui, false);
                         render_table(
                             ui,
                             available_width / 2.0,
@@ -508,9 +529,6 @@ fn asm_table_ui(
                                         SymbolRefByName::new(right_symbol, right_section),
                                     ));
                                 }
-                                DiffViewAction::SetSymbolHighlight(_, _) => {
-                                    // Ignore
-                                }
                                 _ => {
                                     ret = Some(action);
                                 }
@@ -523,6 +541,7 @@ fn asm_table_ui(
             } else if column == 1 {
                 if let Some(ctx) = right_ctx {
                     if ctx.has_symbol() {
+                        hotkeys::check_scroll_hotkeys(ui, false);
                         render_table(
                             ui,
                             available_width / 2.0,
@@ -568,9 +587,6 @@ fn asm_table_ui(
                                         right_symbol_ref,
                                     ));
                                 }
-                                DiffViewAction::SetSymbolHighlight(_, _) => {
-                                    // Ignore
-                                }
                                 _ => {
                                     ret = Some(action);
                                 }
@@ -636,7 +652,7 @@ pub fn function_diff_ui(
     let right_diff_symbol = right_ctx.and_then(|ctx| {
         ctx.symbol_ref.and_then(|symbol_ref| ctx.diff.symbol_diff(symbol_ref).target_symbol)
     });
-    if left_diff_symbol.is_some() && right_ctx.map_or(false, |ctx| !ctx.has_symbol()) {
+    if left_diff_symbol.is_some() && right_ctx.is_some_and(|ctx| !ctx.has_symbol()) {
         let (right_section, right_symbol) =
             right_ctx.unwrap().obj.section_symbol(left_diff_symbol.unwrap());
         let symbol_ref = SymbolRefByName::new(right_symbol, right_section);
@@ -646,7 +662,7 @@ pub fn function_diff_ui(
             left_symbol: state.symbol_state.left_symbol.clone(),
             right_symbol: Some(symbol_ref),
         }));
-    } else if right_diff_symbol.is_some() && left_ctx.map_or(false, |ctx| !ctx.has_symbol()) {
+    } else if right_diff_symbol.is_some() && left_ctx.is_some_and(|ctx| !ctx.has_symbol()) {
         let (left_section, left_symbol) =
             left_ctx.unwrap().obj.section_symbol(right_diff_symbol.unwrap());
         let symbol_ref = SymbolRefByName::new(left_symbol, left_section);
@@ -659,8 +675,8 @@ pub fn function_diff_ui(
     }
 
     // If both sides are missing a symbol, switch to symbol diff view
-    if right_ctx.map_or(false, |ctx| !ctx.has_symbol())
-        && left_ctx.map_or(false, |ctx| !ctx.has_symbol())
+    if right_ctx.is_some_and(|ctx| !ctx.has_symbol())
+        && left_ctx.is_some_and(|ctx| !ctx.has_symbol())
     {
         return Some(DiffViewAction::Navigate(DiffViewNavigation::symbol_diff()));
     }
@@ -671,7 +687,7 @@ pub fn function_diff_ui(
         if column == 0 {
             // Left column
             ui.horizontal(|ui| {
-                if ui.button("⏴ Back").clicked() {
+                if ui.button("⏴ Back").clicked() || hotkeys::back_pressed(ui.ctx()) {
                     ret = Some(DiffViewAction::Navigate(DiffViewNavigation::symbol_diff()));
                 }
                 ui.separator();
@@ -679,7 +695,7 @@ pub fn function_diff_ui(
                     .add_enabled(
                         !state.scratch_running
                             && state.scratch_available
-                            && left_ctx.map_or(false, |ctx| ctx.has_symbol()),
+                            && left_ctx.is_some_and(|ctx| ctx.has_symbol()),
                         egui::Button::new("📲 decomp.me"),
                     )
                     .on_hover_text_at_pointer("Create a new scratch on decomp.me (beta)")
@@ -703,11 +719,12 @@ pub fn function_diff_ui(
                         .font(appearance.code_font.clone())
                         .color(appearance.highlight_color),
                 );
-                if right_ctx.map_or(false, |m| m.has_symbol())
-                    && ui
+                if right_ctx.is_some_and(|m| m.has_symbol())
+                    && (ui
                         .button("Change target")
                         .on_hover_text_at_pointer("Choose a different symbol to use as the target")
                         .clicked()
+                        || hotkeys::consume_change_target_shortcut(ui.ctx()))
                 {
                     if let Some(symbol_ref) = state.symbol_state.right_symbol.as_ref() {
                         ret = Some(DiffViewAction::SelectingLeft(symbol_ref.clone()));
@@ -773,7 +790,7 @@ pub fn function_diff_ui(
                                 .color(match_color_for_symbol(match_percent, appearance)),
                         );
                     }
-                    if left_ctx.map_or(false, |m| m.has_symbol()) {
+                    if left_ctx.is_some_and(|m| m.has_symbol()) {
                         ui.separator();
                         if ui
                             .button("Change base")
@@ -781,6 +798,7 @@ pub fn function_diff_ui(
                                 "Choose a different symbol to use as the base",
                             )
                             .clicked()
+                            || hotkeys::consume_change_base_shortcut(ui.ctx())
                         {
                             if let Some(symbol_ref) = state.symbol_state.left_symbol.as_ref() {
                                 ret = Some(DiffViewAction::SelectingRight(symbol_ref.clone()));

objdiff-gui/src/views/jobs.rs

@@ -1,11 +1,9 @@
 use std::cmp::Ordering;
 
 use egui::{ProgressBar, RichText, Widget};
+use objdiff_core::jobs::{JobQueue, JobStatus};
 
-use crate::{
-    jobs::{JobQueue, JobStatus},
-    views::appearance::Appearance,
-};
+use crate::views::appearance::Appearance;
 
 pub fn jobs_ui(ui: &mut egui::Ui, jobs: &mut JobQueue, appearance: &Appearance) {
     if ui.button("Clear").clicked() {

objdiff-gui/src/views/rlwinm.rs

@@ -16,13 +16,13 @@ pub fn rlwinm_decode_window(
     egui::Window::new("Rlwinm Decoder").open(show).show(ctx, |ui| {
         ui.text_edit_singleline(&mut state.text);
         ui.add_space(10.0);
-        if let Some(demangled) = rlwinmdec::decode(&state.text) {
+        if let Some(decoded) = rlwinmdec::decode(&state.text) {
             ui.scope(|ui| {
                 ui.style_mut().override_text_style = Some(TextStyle::Monospace);
-                ui.colored_label(appearance.replace_color, &demangled);
+                ui.colored_label(appearance.replace_color, decoded.trim());
             });
             if ui.button("Copy").clicked() {
-                ui.output_mut(|output| output.copied_text = demangled);
+                ui.output_mut(|output| output.copied_text = decoded);
             }
         } else {
             ui.scope(|ui| {

objdiff-gui/src/views/symbol_diff.rs

@@ -1,12 +1,14 @@
-use std::{collections::BTreeMap, mem::take};
+use std::{collections::BTreeMap, mem::take, ops::Bound};
 
 use egui::{
-    text::LayoutJob, CollapsingHeader, Color32, Id, OpenUrl, ScrollArea, SelectableLabel, TextEdit,
-    Ui, Widget,
+    style::ScrollAnimation, text::LayoutJob, CollapsingHeader, Color32, Id, OpenUrl, ScrollArea,
+    SelectableLabel, TextEdit, Ui, Widget,
 };
 use objdiff_core::{
     arch::ObjArch,
+    build::BuildStatus,
     diff::{display::HighlightKind, ObjDiff, ObjSymbolDiff},
+    jobs::{create_scratch::CreateScratchResult, objdiff::ObjDiffResult, Job, JobQueue, JobResult},
     obj::{
         ObjInfo, ObjSection, ObjSectionKind, ObjSymbol, ObjSymbolFlags, SymbolRef, SECTION_COMMON,
     },
@@ -15,11 +17,8 @@ use regex::{Regex, RegexBuilder};
 
 use crate::{
     app::AppStateRef,
-    jobs::{
-        create_scratch::{start_create_scratch, CreateScratchConfig, CreateScratchResult},
-        objdiff::{BuildStatus, ObjDiffResult},
-        Job, JobQueue, JobResult,
-    },
+    hotkeys,
+    jobs::{is_create_scratch_available, start_create_scratch},
     views::{
         appearance::Appearance,
         column_layout::{render_header, render_strips},
@@ -56,8 +55,8 @@ pub enum DiffViewAction {
     Build,
     /// Navigate to a new diff view
     Navigate(DiffViewNavigation),
-    /// Set the highlighted symbols in the symbols view
-    SetSymbolHighlight(Option<SymbolRef>, Option<SymbolRef>),
+    /// Set the highlighted symbols in the symbols view, optionally scrolling them into view.
+    SetSymbolHighlight(Option<SymbolRef>, Option<SymbolRef>, bool),
     /// Set the symbols view search filter
     SetSearch(String),
     /// Submit the current function to decomp.me
@@ -135,6 +134,7 @@ pub struct DiffViewState {
 #[derive(Default)]
 pub struct SymbolViewState {
     pub highlighted_symbol: (Option<SymbolRef>, Option<SymbolRef>),
+    pub autoscroll_to_highlighted_symbols: bool,
     pub left_symbol: Option<SymbolRefByName>,
     pub right_symbol: Option<SymbolRefByName>,
     pub reverse_fn_order: bool,
@@ -180,7 +180,7 @@ impl DiffViewState {
             } else {
                 self.source_path_available = false;
             }
-            self.scratch_available = CreateScratchConfig::is_available(&state.config);
+            self.scratch_available = is_create_scratch_available(&state.config);
             self.object_name =
                 state.config.selected_obj.as_ref().map(|o| o.name.clone()).unwrap_or_default();
         }
@@ -197,6 +197,9 @@ impl DiffViewState {
             ctx.output_mut(|o| o.open_url = Some(OpenUrl::new_tab(result.scratch_url)));
         }
 
+        // Clear the autoscroll flag so that it doesn't scroll continuously.
+        self.symbol_state.autoscroll_to_highlighted_symbols = false;
+
         let Some(action) = action else {
             return;
         };
@@ -211,7 +214,6 @@ impl DiffViewState {
                     // Ignore action if we're already navigating
                     return;
                 }
-                self.symbol_state.highlighted_symbol = (None, None);
                 let Ok(mut state) = state.write() else {
                     return;
                 };
@@ -247,8 +249,9 @@ impl DiffViewState {
                     self.post_build_nav = Some(nav);
                 }
             }
-            DiffViewAction::SetSymbolHighlight(left, right) => {
+            DiffViewAction::SetSymbolHighlight(left, right, autoscroll) => {
                 self.symbol_state.highlighted_symbol = (left, right);
+                self.symbol_state.autoscroll_to_highlighted_symbols = autoscroll;
             }
             DiffViewAction::SetSearch(search) => {
                 self.search_regex = if search.is_empty() {
@@ -265,14 +268,7 @@ impl DiffViewState {
                 let Ok(state) = state.read() else {
                     return;
                 };
-                match CreateScratchConfig::from_config(&state.config, function_name) {
-                    Ok(config) => {
-                        jobs.push_once(Job::CreateScratch, || start_create_scratch(ctx, config));
-                    }
-                    Err(err) => {
-                        log::error!("Failed to create scratch config: {err}");
-                    }
-                }
+                start_create_scratch(ctx, jobs, &state, function_name);
             }
             DiffViewAction::OpenSourcePath => {
                 let Ok(state) = state.read() else {
@@ -534,7 +530,15 @@ fn symbol_ui(
             ret = Some(DiffViewAction::Navigate(result));
         }
     });
-    if response.clicked() {
+    if selected && state.autoscroll_to_highlighted_symbols {
+        // Automatically scroll the view to encompass the selected symbol in case the user selected
+        // an offscreen symbol by using a keyboard shortcut.
+        ui.scroll_to_rect_animation(response.rect, None, ScrollAnimation::none());
+        // This autoscroll state flag will be reset in DiffViewState::post_update at the end of
+        // every frame so that we don't continuously scroll the view back when the user is trying to
+        // manually scroll away.
+    }
+    if response.clicked() || (selected && hotkeys::enter_pressed(ui.ctx())) {
         if let Some(section) = section {
             match section.kind {
                 ObjSectionKind::Code => {
@@ -561,20 +565,18 @@ fn symbol_ui(
             }
         }
     } else if response.hovered() {
-        ret = Some(if let Some(target_symbol) = symbol_diff.target_symbol {
-            if column == 0 {
-                DiffViewAction::SetSymbolHighlight(
-                    Some(symbol_diff.symbol_ref),
-                    Some(target_symbol),
-                )
-            } else {
-                DiffViewAction::SetSymbolHighlight(
-                    Some(target_symbol),
-                    Some(symbol_diff.symbol_ref),
-                )
-            }
+        ret = Some(if column == 0 {
+            DiffViewAction::SetSymbolHighlight(
+                Some(symbol_diff.symbol_ref),
+                symbol_diff.target_symbol,
+                false,
+            )
         } else {
-            DiffViewAction::SetSymbolHighlight(None, None)
+            DiffViewAction::SetSymbolHighlight(
+                symbol_diff.target_symbol,
+                Some(symbol_diff.symbol_ref),
+                false,
+            )
         });
     }
     ret
@@ -648,6 +650,58 @@ pub fn symbol_list_ui(
             }
         }
 
+        hotkeys::check_scroll_hotkeys(ui, false);
+
+        let mut new_key_value_to_highlight = None;
+        if let Some(sym_ref) =
+            if column == 0 { state.highlighted_symbol.0 } else { state.highlighted_symbol.1 }
+        {
+            let up = if hotkeys::consume_up_key(ui.ctx()) {
+                Some(true)
+            } else if hotkeys::consume_down_key(ui.ctx()) {
+                Some(false)
+            } else {
+                None
+            };
+            if let Some(mut up) = up {
+                if state.reverse_fn_order {
+                    up = !up;
+                }
+                new_key_value_to_highlight = if up {
+                    mapping.range(..sym_ref).next_back()
+                } else {
+                    mapping.range((Bound::Excluded(sym_ref), Bound::Unbounded)).next()
+                };
+            };
+        } else {
+            // No symbol is highlighted in this column. Select the topmost symbol instead.
+            // Note that we intentionally do not consume the up/down key presses in this case, but
+            // we do when a symbol is highlighted. This is so that if only one column has a symbol
+            // highlighted, that one takes precedence over the one with nothing highlighted.
+            if hotkeys::up_pressed(ui.ctx()) || hotkeys::down_pressed(ui.ctx()) {
+                new_key_value_to_highlight = if state.reverse_fn_order {
+                    mapping.last_key_value()
+                } else {
+                    mapping.first_key_value()
+                };
+            }
+        }
+        if let Some((new_sym_ref, new_symbol_diff)) = new_key_value_to_highlight {
+            ret = Some(if column == 0 {
+                DiffViewAction::SetSymbolHighlight(
+                    Some(*new_sym_ref),
+                    new_symbol_diff.target_symbol,
+                    true,
+                )
+            } else {
+                DiffViewAction::SetSymbolHighlight(
+                    new_symbol_diff.target_symbol,
+                    Some(*new_sym_ref),
+                    true,
+                )
+            });
+        }
+
         ui.scope(|ui| {
             ui.style_mut().override_text_style = Some(egui::TextStyle::Monospace);
             ui.style_mut().wrap_mode = Some(egui::TextWrapMode::Extend);
@@ -838,7 +892,11 @@ pub fn symbol_diff_ui(
             });
 
             let mut search = state.search.clone();
-            if TextEdit::singleline(&mut search).hint_text("Filter symbols").ui(ui).changed() {
+            let response = TextEdit::singleline(&mut search).hint_text("Filter symbols").ui(ui);
+            if hotkeys::consume_symbol_filter_shortcut(ui.ctx()) {
+                response.request_focus();
+            }
+            if response.changed() {
                 ret = Some(DiffViewAction::SetSearch(search));
             }
         } else if column == 1 {