Commit Graph

31 Commits

Author SHA1 Message Date
Dávid Balatoni 67b237eab6 Adjust symbol name matching logic for GCC (#278)
* Adjust symbol name matching logic for GCC

* Turn $ and . into a list

* Fix borrow issue
2025-11-18 21:55:55 -07:00
iFarbod a06d3455ae Ignore extern differences in relocations (#258) 2025-09-08 21:41:53 -06:00
Luke Street fbdaa89cc0 Refactor data diffing & expose WASM API (#256)
* Refactor data diffing & expose WASM API

* Update test snapshots
2025-09-07 18:59:46 -06:00
LagoLunatic 23009bf9a3 Implement diffing individual data symbols (#244)
* Implement diffing individual data symbols

* Remove unused code for diffing sections

* Data diff view: Make rows show offset within the symbol, not within the section

* Remove SelectedSymbol enum as it only has a single variant now

* Create fake data section symbols to allow diffing entire sections again

* Fix text sections not having their size zeroed out

* Update test snapshots

* Clean up code for inferring section symbol size

* Fix bug where PPC pool references weren't ignoring section symbols

* Update comment

* Always add unique section symbols for data sections

* Update test snapshots

* Remove unnecessary clone in format! call

* Auto-start mapping for unpaired data symbols
2025-09-02 19:37:17 -06:00
LagoLunatic f2a591356e Improve automatic symbol pairing for nameless literals (#247)
* Improve automatic symbol pairing for nameless literals

* Fix data reloc diffing when the reloc points to an in-function static symbol

* Only pair up literals that match perfectly

* Clippy

* Do two separate passes when pairing up literals

* Fix partially-matching literal pairups not working right

* Remove duplicate $ splitting code

* Implement $ splitting for section names too

* Minor cleanup
2025-08-30 23:07:43 -06:00
LagoLunatic 34e4513c69 Fix data section not showing when there is no section on the other side 2025-08-06 16:09:18 -04:00
Ryan Burns f58616b6dd Use symbol name when comparing against an externed reloc (#214)
* Use symbol name when comparing against an externed reloc

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

* Combine cases, and apply change reloc_eq in code.rs
2025-05-30 15:00:02 -06:00
Luke Street 3db0727469 Omit match % for right sections, improve multi-section diffing
Fixes #120
2025-05-07 16:47:20 -06:00
Luke Street 42d4c38079 mips: Ignore .NON_MATCHING functions from INLINE_ASM macros 2025-03-11 21:39:17 -06:00
Luke Street 799971d54e Migrate to Rust edition 2024 2025-03-04 22:31:38 -07:00
LagoLunatic cf5fc54cfa PPC: Reimplement pooled data reference calculation (#167)
* PPC: Calculate pooled relocations

Reimplements #140

The relocations are now generated when the object is first read in `parse`, right after the real relocations are read.

`resolve_relocation` was changed to take `obj.symbols` instead of `obj` as an argument, because `obj` itself doesn't exist yet at the time the relocations are being read.

* Improve readability of PPC pool relocs code

* Fix regression causing extern pool relocs to be ignored

* Fix showing incorrect diff when diffing weak stripped symbol with an addend

This is a regression that was introduced by #158 diffing addends in addition to symbol names. But it's not really a bug in that PR, rather it seems like I simply never added the offset into the addend when creating a fake pool relocation for an extern symbol. So this commit fixes that root issue instead.

* Add PPC "Calculate pooled data references" option

* Fix objdiff-wasm compilation errors

* Update PPC test snapshots
2025-03-04 20:40:34 -07:00
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
Luke Street a1f2a535e5 Unify context menu / hover tooltip code + UI improvements 2025-03-02 16:13:12 -07:00
Luke Street 506c251d68 Various fixes 2025-02-26 22:47:42 -07:00
Luke Street f3c157ff06 WIP objdiff 3.0 refactor 2025-02-26 22:09:39 -07:00
Luke Street e8de35b78e Make objdiff-core no_std + huge WASM rework 2025-02-09 22:28:02 -07:00
LagoLunatic 3e6efb7736 Check relocation addends when diffing functions (#158)
* Check relocation addends when diffing functions

* Also highlight addend when reloc differs
2025-02-09 22:26:49 -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
Luke Street 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: https://github.com/encounter/dtk-template/commit/d1334bb79e71af1a7b3b090bffda4adc483f722c)

Resolves #117
2024-10-09 21:44:18 -06:00
Luke Street 0fccae1049 Add experimental wasm bindings
Published to npm as objdiff-wasm
2024-08-20 21:40:32 -06:00
Luke Street cf937b0be9 Guard against symbols larger than section 2024-08-11 16:54:24 -06:00
Luke Street 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
Luke Street e3fff7b0dc Improve data section diff logic
More accurate in more cases

Fixes #81
2024-07-21 22:52:46 -06:00
Luke Street e254af5acf Support bss and text section diffing
Display section diff % in symbols view
2024-05-21 12:02:00 -06:00