mirror of
https://github.com/encounter/objdiff.git
synced 2025-06-08 15:43:27 +00:00
97981160f4
* Initial ARM support * Disassemble const pool reloc * Disasm ARM/Thumb/data based on mapping symbols * Fallback to mapping symbol `$a` * Support multiple DWARF sequences * Update line info * Rework DWARF line info parsing - Properly handles multiple sections in DWARF 1 - line_info moved into ObjSection - DWARF 2 parser no longer errors with no .text section - Both parsers properly skip empty sections * Simplify line_info (no Option) * Get line info from section; output formatted ins string * Unwrap code section in `arm.rs` * Handle reloc `R_ARM_SBREL32` * Update ARM disassembler * Update README.md * Format * Revert "Update README.md" This reverts commit 8bbfcc6f453c13340764bbae2946025bc41659ae. * Update README.md * Detect ARM version; support ARMv4T and v6K * Combobox to force ARM version * Clear LSB in ARM symbol addresses * Support big-endian ARM ELF files * Bump `unarm`, `arm-attr` * Handle ARM implicit addends * Update README.md * Explicitly handle all ARM argument types * Format * Display more ARM relocs * Mask LSB on ARM code symbols only * Read ARM implicit addends * Format --------- Co-authored-by: Luke Street <luke.street@encounterpc.com>
59 lines
1.7 KiB
Rust
59 lines
1.7 KiB
Rust
use std::{borrow::Cow, collections::BTreeMap};
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use anyhow::{bail, Result};
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use object::{Architecture, Object, ObjectSymbol, Relocation, RelocationFlags, Symbol};
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use crate::{
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diff::DiffObjConfig,
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obj::{ObjIns, ObjReloc, ObjSection},
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};
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#[cfg(feature = "arm")]
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mod arm;
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#[cfg(feature = "mips")]
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pub mod mips;
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#[cfg(feature = "ppc")]
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pub mod ppc;
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#[cfg(feature = "x86")]
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pub mod x86;
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pub trait ObjArch: Send + Sync {
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fn process_code(
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&self,
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address: u64,
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code: &[u8],
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section_index: usize,
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relocations: &[ObjReloc],
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line_info: &BTreeMap<u64, u64>,
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config: &DiffObjConfig,
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) -> Result<ProcessCodeResult>;
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fn implcit_addend(&self, section: &ObjSection, address: u64, reloc: &Relocation)
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-> Result<i64>;
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fn demangle(&self, _name: &str) -> Option<String> { None }
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fn display_reloc(&self, flags: RelocationFlags) -> Cow<'static, str>;
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fn symbol_address(&self, symbol: &Symbol) -> u64 { symbol.address() }
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}
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pub struct ProcessCodeResult {
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pub ops: Vec<u16>,
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pub insts: Vec<ObjIns>,
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}
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pub fn new_arch(object: &object::File) -> Result<Box<dyn ObjArch>> {
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Ok(match object.architecture() {
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#[cfg(feature = "ppc")]
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Architecture::PowerPc => Box::new(ppc::ObjArchPpc::new(object)?),
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#[cfg(feature = "mips")]
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Architecture::Mips => Box::new(mips::ObjArchMips::new(object)?),
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#[cfg(feature = "x86")]
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Architecture::I386 | Architecture::X86_64 => Box::new(x86::ObjArchX86::new(object)?),
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#[cfg(feature = "arm")]
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Architecture::Arm => Box::new(arm::ObjArchArm::new(object)?),
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arch => bail!("Unsupported architecture: {arch:?}"),
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})
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}
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