35 Commits

Author SHA1 Message Date
LagoLunatic
a1ea2919f8
Reimplement function data value tooltips, function data value diffing, and data relocation diffing (#166)
* Show data literal values on instruction hover

Reimplements #108

* Show reloc diffs in func view when data's content differs

Reimplements #153

* Data diff view: Show relocs on hover and in context menu

This reimplements #154

Note that colorizing the text depending on the kind of diff has still not been reimplemented yet

* Fix up some comments
2025-03-04 08:56:46 -07:00
f3c157ff06 WIP objdiff 3.0 refactor 2025-02-26 22:09:39 -07:00
e8de35b78e Make objdiff-core no_std + huge WASM rework 2025-02-09 22:28:02 -07:00
LagoLunatic
b7730b3d00
Refactor data relocation diffing to improve accuracy and fix bugs (#157)
* Data reloc hover tooltip: Show relocation source address

* Refactor data relocation diffing to improve accuracy and fix bugs
2025-01-21 22:54:31 -07:00
LagoLunatic
a4fdb61f04
Implement diffing relocations within data sections (#154)
* Data view: Show data bytes with differing relocations as a diff

* Data view: Show differing relocations on hover

* Symbol list view: Adjust symbol/section match %s when relocations differ

* Improve data reloc diffing logic

* Don't make reloc diffs cause bytes to show as red or green

* Properly detect byte size of each relocation

* Data view: Add context menu for copying relocation target symbols

* Also show already-matching relocations on hover/right click

* Change font color for nonmatching relocs on hover
2025-01-18 16:20:07 -07:00
c3e3d175c5 Create schema for diff config properties 2025-01-04 21:02:54 -07:00
c45f4bbc99 Diff schema updates & WASM updates 2025-01-04 21:02:54 -07:00
7f14b684bf Ignore PlainText segments when diffing 2024-10-31 17:27:27 -06:00
21f8f2407c Relax symbol comparison logic
The Ghidra delinker plugin emits functions with type STT_OBJECT,
rather than STT_FUNC. The current logic was preventing these from
being compared based on their symbol type. Relax this condition
for now.
2024-10-29 22:46:02 -06:00
d2b7a9ef25 Fix missing common BSS symbols
Resolves #128
2024-10-28 17:54:49 -06:00
Anghelo Carvajal
5ef3416457
Improve dependency gating on objdiff-core (#126)
* Reduce dependencies for no features

* Add missing deps to every feature

* Add missing `dep:`s

* Gate even more deps behind features

Removes dependency on tsify-next / wasm-bindgen unless
compiling with the wasm feature by using `#[cfg_attr]`

* Fix wasm

---------

Co-authored-by: Luke Street <luke@street.dev>
2024-10-20 19:04:29 -07:00
676488433f Fix resolving symbols for section-relative relocations
Also fixes MIPS `j` handling when jumping within the function.

Reworks `ObjReloc` struct to be a little more sensible.
2024-10-11 18:09:18 -06:00
741d93e211
Add symbol mapping feature (#118)
This allows users to "map" (or "link") symbols with different names so that they can be compared without having to update either the target or base objects. Symbol mappings are persisted in objdiff.json, so generators will need to ensure that they're preserved when updating. (Example: d1334bb79e)

Resolves #117
2024-10-09 21:44:18 -06:00
1f4175dc21 Overall wasm refactoring & improvements 2024-08-21 19:48:58 -06:00
0fccae1049 Add experimental wasm bindings
Published to npm as objdiff-wasm
2024-08-20 21:40:32 -06:00
de74dfdba7 Add dummy symbols to empty sections
Allows diffing sections without symbols

Resolves #87
2024-08-11 14:27:27 -06:00
e1ccee1e73 Improve data section diffing more
This re-implements the older algorithm
used for data and BSS section match
percentages. We perform both and
choose the highest match percent
between the two options.

Resolves #84, #85
2024-08-11 13:53:52 -06:00
e3fff7b0dc Improve data section diff logic
More accurate in more cases

Fixes #81
2024-07-21 22:52:46 -06:00
Aetias
d9fb48853e
Options for ARM disassembly style (#78) 2024-07-14 16:00:57 -06:00
Aetias
97981160f4
ARMv4T (GBA) and ARMv6K (3DS) support (#75)
* 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>
2024-06-20 18:36:25 -06:00
Aetias
1fd901a863
Option to combine data sections (#76)
Co-authored-by: Luke Street <luke.street@encounterpc.com>
2024-06-18 22:05:24 -06:00
3f82c1a50f objdiff-core API adjustments
- Allows using process_code without
  constructing an ObjInfo
- Allows creating an arch without
  having to provide an object

Used in decomp-toolkit
2024-06-03 18:52:32 -06:00
f30b3cfae2 Default "Space between args" -> true 2024-05-21 18:09:46 -06:00
9e57a66a05 Auto-detect MIPS ABI/category & add config
Under Diff Options -> Arch Settings, one
can override the ABI/instruction category
2024-05-21 18:06:14 -06:00
e254af5acf Support bss and text section diffing
Display section diff % in symbols view
2024-05-21 12:02:00 -06:00
22a24f37f5 Diff data symbols & improve symbol match logic 2024-05-20 23:53:37 -06:00
106652ae7d Fix PPC branch display; update README.md 2024-03-22 23:06:41 -06:00
30d14870ef Update ppc750cl, add Itanium demangler & cleanup 2024-03-21 21:36:50 -06:00
4dfc28fc68 Diff cleanup & fixes 2024-03-18 22:56:13 -06:00
3c74b89f15 Restructure diffing code & initial 3-way diffing (WIP) 2024-03-18 18:10:18 -06:00
9df98f263e Move all architecture-specific code into modules
No more scattered relocation handling and
feature checks. Everything will go through
the ObjArch trait, which makes it easier
to add new architectures going forward.
2024-03-17 12:16:47 -06:00
bbe49eb8b4 Initial x86 support
Includes a bit of work to make adding new
architectures easier in the future
2024-03-16 23:30:27 -06:00
cff6a230a3 Remove alternate diff algorithms, only keep Patience 2024-02-27 21:18:42 -07:00
9a7d2bcebf Experimental objdiff-cli (WIP) 2024-02-27 18:47:51 -07:00
4eba5f71b0 Split into objdiff-core / objdiff-gui; update egui to 0.26.2 2024-02-26 18:48:48 -07:00