objdiff/src/views/function_diff.rs

434 lines
17 KiB
Rust

use std::default::Default;
use cwdemangle::demangle;
use egui::{text::LayoutJob, Color32, FontId, Label, Sense};
use egui_extras::{Size, StripBuilder, TableBuilder};
use ppc750cl::Argument;
use time::format_description;
use crate::{
app::{View, ViewConfig, ViewState},
jobs::Job,
obj::{
ObjInfo, ObjIns, ObjInsArg, ObjInsArgDiff, ObjInsDiff, ObjInsDiffKind, ObjReloc,
ObjRelocKind, ObjSymbol,
},
views::{symbol_diff::match_color_for_symbol, write_text, COLOR_RED},
};
fn write_reloc_name(reloc: &ObjReloc, color: Color32, job: &mut LayoutJob, font_id: FontId) {
let name = reloc.target.demangled_name.as_ref().unwrap_or(&reloc.target.name);
write_text(name, Color32::LIGHT_GRAY, job, font_id.clone());
if reloc.target.addend != 0 {
write_text(&format!("+{:X}", reloc.target.addend), color, job, font_id.clone());
}
}
fn write_reloc(reloc: &ObjReloc, color: Color32, job: &mut LayoutJob, font_id: FontId) {
match reloc.kind {
ObjRelocKind::PpcAddr16Lo => {
write_reloc_name(reloc, color, job, font_id.clone());
write_text("@l", color, job, font_id.clone());
}
ObjRelocKind::PpcAddr16Hi => {
write_reloc_name(reloc, color, job, font_id.clone());
write_text("@h", color, job, font_id.clone());
}
ObjRelocKind::PpcAddr16Ha => {
write_reloc_name(reloc, color, job, font_id.clone());
write_text("@ha", color, job, font_id.clone());
}
ObjRelocKind::PpcEmbSda21 => {
write_reloc_name(reloc, color, job, font_id.clone());
write_text("@sda21", color, job, font_id.clone());
}
ObjRelocKind::MipsHi16 => {
write_text("%hi(", color, job, font_id.clone());
write_reloc_name(reloc, color, job, font_id.clone());
write_text(")", color, job, font_id.clone());
}
ObjRelocKind::MipsLo16 => {
write_text("%lo(", color, job, font_id.clone());
write_reloc_name(reloc, color, job, font_id.clone());
write_text(")", color, job, font_id.clone());
}
ObjRelocKind::Absolute
| ObjRelocKind::PpcRel24
| ObjRelocKind::PpcRel14
| ObjRelocKind::Mips26 => {
write_reloc_name(reloc, color, job, font_id.clone());
}
};
}
fn write_ins(
ins: &ObjIns,
diff_kind: &ObjInsDiffKind,
args: &[Option<ObjInsArgDiff>],
base_addr: u32,
job: &mut LayoutJob,
config: &ViewConfig,
) {
let base_color = match diff_kind {
ObjInsDiffKind::None | ObjInsDiffKind::OpMismatch | ObjInsDiffKind::ArgMismatch => {
Color32::GRAY
}
ObjInsDiffKind::Replace => Color32::LIGHT_BLUE,
ObjInsDiffKind::Delete => COLOR_RED,
ObjInsDiffKind::Insert => Color32::GREEN,
};
write_text(
&format!("{:<11}", ins.mnemonic),
match diff_kind {
ObjInsDiffKind::OpMismatch => Color32::LIGHT_BLUE,
_ => base_color,
},
job,
config.code_font.clone(),
);
let mut writing_offset = false;
for (i, arg) in ins.args.iter().enumerate() {
if i == 0 {
write_text(" ", base_color, job, config.code_font.clone());
}
if i > 0 && !writing_offset {
write_text(", ", base_color, job, config.code_font.clone());
}
let color = if let Some(diff) = args.get(i).and_then(|a| a.as_ref()) {
config.diff_colors[diff.idx % config.diff_colors.len()]
} else {
base_color
};
match arg {
ObjInsArg::PpcArg(arg) => match arg {
Argument::Offset(val) => {
write_text(&format!("{}", val), color, job, config.code_font.clone());
write_text("(", base_color, job, config.code_font.clone());
writing_offset = true;
continue;
}
Argument::Uimm(_) | Argument::Simm(_) => {
write_text(&format!("{}", arg), color, job, config.code_font.clone());
}
_ => {
write_text(&format!("{}", arg), color, job, config.code_font.clone());
}
},
ObjInsArg::Reloc => {
write_reloc(ins.reloc.as_ref().unwrap(), base_color, job, config.code_font.clone());
}
ObjInsArg::RelocWithBase => {
write_reloc(ins.reloc.as_ref().unwrap(), base_color, job, config.code_font.clone());
write_text("(", base_color, job, config.code_font.clone());
writing_offset = true;
continue;
}
ObjInsArg::MipsArg(str) => {
write_text(
str.strip_prefix('$').unwrap_or(str),
color,
job,
config.code_font.clone(),
);
}
ObjInsArg::BranchOffset(offset) => {
let addr = offset + ins.address as i32 - base_addr as i32;
write_text(&format!("{:x}", addr), color, job, config.code_font.clone());
}
}
if writing_offset {
write_text(")", base_color, job, config.code_font.clone());
writing_offset = false;
}
}
}
fn ins_hover_ui(ui: &mut egui::Ui, ins: &ObjIns) {
ui.scope(|ui| {
ui.style_mut().override_text_style = Some(egui::TextStyle::Monospace);
ui.style_mut().wrap = Some(false);
ui.label(format!("{:02X?}", ins.code.to_be_bytes()));
for arg in &ins.args {
if let ObjInsArg::PpcArg(arg) = arg {
match arg {
Argument::Uimm(v) => {
ui.label(format!("{} == {}", v, v.0));
}
Argument::Simm(v) => {
ui.label(format!("{} == {}", v, v.0));
}
Argument::Offset(v) => {
ui.label(format!("{} == {}", v, v.0));
}
_ => {}
}
}
}
if let Some(reloc) = &ins.reloc {
ui.label(format!("Relocation type: {:?}", reloc.kind));
ui.colored_label(Color32::WHITE, format!("Name: {}", reloc.target.name));
if let Some(section) = &reloc.target_section {
ui.colored_label(Color32::WHITE, format!("Section: {}", section));
ui.colored_label(Color32::WHITE, format!("Address: {:x}", reloc.target.address));
ui.colored_label(Color32::WHITE, format!("Size: {:x}", reloc.target.size));
} else {
ui.colored_label(Color32::WHITE, "Extern".to_string());
}
}
});
}
fn ins_context_menu(ui: &mut egui::Ui, ins: &ObjIns) {
ui.scope(|ui| {
ui.style_mut().override_text_style = Some(egui::TextStyle::Monospace);
ui.style_mut().wrap = Some(false);
// if ui.button("Copy hex").clicked() {}
for arg in &ins.args {
if let ObjInsArg::PpcArg(arg) = arg {
match arg {
Argument::Uimm(v) => {
if ui.button(format!("Copy \"{}\"", v)).clicked() {
ui.output().copied_text = format!("{}", v);
ui.close_menu();
}
if ui.button(format!("Copy \"{}\"", v.0)).clicked() {
ui.output().copied_text = format!("{}", v.0);
ui.close_menu();
}
}
Argument::Simm(v) => {
if ui.button(format!("Copy \"{}\"", v)).clicked() {
ui.output().copied_text = format!("{}", v);
ui.close_menu();
}
if ui.button(format!("Copy \"{}\"", v.0)).clicked() {
ui.output().copied_text = format!("{}", v.0);
ui.close_menu();
}
}
Argument::Offset(v) => {
if ui.button(format!("Copy \"{}\"", v)).clicked() {
ui.output().copied_text = format!("{}", v);
ui.close_menu();
}
if ui.button(format!("Copy \"{}\"", v.0)).clicked() {
ui.output().copied_text = format!("{}", v.0);
ui.close_menu();
}
}
_ => {}
}
}
}
if let Some(reloc) = &ins.reloc {
if let Some(name) = &reloc.target.demangled_name {
if ui.button(format!("Copy \"{}\"", name)).clicked() {
ui.output().copied_text = name.clone();
ui.close_menu();
}
}
if ui.button(format!("Copy \"{}\"", reloc.target.name)).clicked() {
ui.output().copied_text = reloc.target.name.clone();
ui.close_menu();
}
}
});
}
fn find_symbol<'a>(obj: &'a ObjInfo, section_name: &str, name: &str) -> Option<&'a ObjSymbol> {
let section = obj.sections.iter().find(|s| s.name == section_name)?;
section.symbols.iter().find(|s| s.name == name)
}
fn asm_row_ui(ui: &mut egui::Ui, ins_diff: &ObjInsDiff, symbol: &ObjSymbol, config: &ViewConfig) {
if ins_diff.kind != ObjInsDiffKind::None {
ui.painter().rect_filled(ui.available_rect_before_wrap(), 0.0, ui.visuals().faint_bg_color);
}
let mut job = LayoutJob::default();
if let Some(ins) = &ins_diff.ins {
let base_color = match ins_diff.kind {
ObjInsDiffKind::None | ObjInsDiffKind::OpMismatch | ObjInsDiffKind::ArgMismatch => {
Color32::GRAY
}
ObjInsDiffKind::Replace => Color32::LIGHT_BLUE,
ObjInsDiffKind::Delete => COLOR_RED,
ObjInsDiffKind::Insert => Color32::GREEN,
};
write_text(
&format!("{:<6}", format!("{:x}:", ins.address - symbol.address as u32)),
base_color,
&mut job,
config.code_font.clone(),
);
if let Some(branch) = &ins_diff.branch_from {
write_text(
"~> ",
config.diff_colors[branch.branch_idx % config.diff_colors.len()],
&mut job,
config.code_font.clone(),
);
} else {
write_text(" ", base_color, &mut job, config.code_font.clone());
}
write_ins(ins, &ins_diff.kind, &ins_diff.arg_diff, symbol.address as u32, &mut job, config);
if let Some(branch) = &ins_diff.branch_to {
write_text(
" ~>",
config.diff_colors[branch.branch_idx % config.diff_colors.len()],
&mut job,
config.code_font.clone(),
);
}
ui.add(Label::new(job).sense(Sense::click()))
.on_hover_ui_at_pointer(|ui| ins_hover_ui(ui, ins))
.context_menu(|ui| ins_context_menu(ui, ins));
} else {
ui.label("");
}
}
fn asm_table_ui(
table: TableBuilder<'_>,
left_obj: &ObjInfo,
right_obj: &ObjInfo,
fn_name: &str,
config: &ViewConfig,
) -> Option<()> {
let left_symbol = find_symbol(left_obj, ".text", fn_name);
let right_symbol = find_symbol(right_obj, ".text", fn_name);
let instructions_len = left_symbol.or(right_symbol).map(|s| s.instructions.len())?;
table.body(|body| {
body.rows(config.code_font.size, instructions_len, |row_index, mut row| {
row.col(|ui| {
if let Some(symbol) = left_symbol {
asm_row_ui(ui, &symbol.instructions[row_index], symbol, config);
}
});
row.col(|ui| {
if let Some(symbol) = right_symbol {
asm_row_ui(ui, &symbol.instructions[row_index], symbol, config);
}
});
});
});
Some(())
}
pub fn function_diff_ui(ui: &mut egui::Ui, view_state: &mut ViewState) -> bool {
let mut rebuild = false;
if let (Some(result), Some(selected_symbol)) = (&view_state.build, &view_state.selected_symbol)
{
StripBuilder::new(ui)
.size(Size::exact(20.0))
.size(Size::exact(40.0))
.size(Size::remainder())
.vertical(|mut strip| {
strip.strip(|builder| {
builder.sizes(Size::remainder(), 2).horizontal(|mut strip| {
strip.cell(|ui| {
ui.horizontal(|ui| {
if ui.button("Back").clicked() {
view_state.current_view = View::SymbolDiff;
}
});
});
strip.cell(|ui| {
ui.horizontal(|ui| {
if ui.button("Build").clicked() {
rebuild = true;
}
ui.scope(|ui| {
ui.style_mut().override_text_style =
Some(egui::TextStyle::Monospace);
ui.style_mut().wrap = Some(false);
if view_state
.jobs
.iter()
.any(|job| job.job_type == Job::ObjDiff)
{
ui.label("Building...");
} else {
ui.label("Last built:");
let format =
format_description::parse("[hour]:[minute]:[second]")
.unwrap();
ui.label(
result
.time
.to_offset(view_state.utc_offset)
.format(&format)
.unwrap(),
);
}
});
});
});
});
});
strip.strip(|builder| {
builder.sizes(Size::remainder(), 2).horizontal(|mut strip| {
let demangled = demangle(selected_symbol, &Default::default());
strip.cell(|ui| {
ui.scope(|ui| {
ui.style_mut().override_text_style =
Some(egui::TextStyle::Monospace);
ui.style_mut().wrap = Some(false);
ui.colored_label(
Color32::WHITE,
demangled.as_ref().unwrap_or(selected_symbol),
);
ui.label("Diff target:");
ui.separator();
});
});
strip.cell(|ui| {
ui.scope(|ui| {
ui.style_mut().override_text_style =
Some(egui::TextStyle::Monospace);
ui.style_mut().wrap = Some(false);
if let Some(match_percent) = result
.second_obj
.as_ref()
.and_then(|obj| find_symbol(obj, ".text", selected_symbol))
.and_then(|symbol| symbol.match_percent)
{
ui.colored_label(
match_color_for_symbol(match_percent),
&format!("{:.0}%", match_percent),
);
}
ui.label("Diff base:");
ui.separator();
});
});
});
});
strip.cell(|ui| {
if let (Some(left_obj), Some(right_obj)) =
(&result.first_obj, &result.second_obj)
{
let table = TableBuilder::new(ui)
.striped(false)
.cell_layout(egui::Layout::left_to_right(egui::Align::Min))
.column(Size::relative(0.5))
.column(Size::relative(0.5))
.resizable(false);
asm_table_ui(
table,
left_obj,
right_obj,
selected_symbol,
&view_state.view_config,
);
}
});
});
}
rebuild
}