This allows explicitly ignoring changes to certain
files or directories, even if the changed file ends
up matching `watch_patterns`. The default value,
`build/**/*` will ensure that changes in the build
directory will not trigger a duplicate rebuild.
Resolves#143Resolves#215
This has been unimplemented since v3.0.0-alpha.1,
and I don't currently have plans to bring it back.
If you need it for something, please open an issue!
* Fix data flow analysis for multiple text sections
* Data flow analysis results were only keyed by the symbol (function)
address. That doen't work if there are multiple text sections, the
result from the first function in one section will stomp the result
from the first function in another because both have address zero.
* Remove the ambiguity by keying off of the section address as well.
* Formatting
* Satisfy wasm build
* Clippy
* Formatting again
* Thought that section was the section address not the section number.
---------
Co-authored-by: Luke Street <luke.street@encounterpc.com>
* WIP implementation
* * Move flow analysis to dedicated file
* Show string constants inline
* Handle calls to MWCC "sled" helpers which otherwise disrupt flow analysis
* Run cargo insta review
* Apply clippy feedback
* Update more tests.
* Remove std use from ppc flow analysis
* Try to make wasm build work again
* More test changes
* Probably last wasm fix
* Formatting
* Fix WASM
* One more clippy thing
* Fixed display of float constants in a LFS or LFD instruction in case where there is a branch to the subsequent instruction with a different register value.
* On lines with a reloc, only hide Symbol type data flow values rather than all data flow values.
* Formatting
* 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
When searching for a symbol by name, only look at
symbols that are defined within the object,
ignoring extern symbols (symbols without section).
Fixes#180Fixes#181
COFF objects in particular don't contain the size of
symbols. We infer the size of these symbols by
extending them to the next symbol. If a tool emits
symbols for branch targets, this causes the inferred
size to be too small.
This checks if a symbol starts with a certain prefix
(right now, just .L or LAB_), and skips over it
during symbol size inference.
Resolves#174
We have specific diff logic that relies on knowing
which object is the target object, and which is the
base. generate_mapping_symbols was designed in such
a way that it would reverse the target/base, leading
to a match percent shown that's different when it
gets applied.
Fixes#200
Reworks the local-branch handling logic to be more
unified: scan_instructions does all the work up front,
and process_instruction / display_instruction can
simply use the calculated branch destination instead
of performing their own is-relocation-target-
function-local checks.
(Hopefully) Fixes#192
* Add data info for superh
* fmt
* Fetch symbol data dynamically from resolved.section
* Remove unused var
---------
Co-authored-by: Luke Street <luke@street.dev>
* Combine data/text sections: Pad all sections to 4-byte minimum alignment
* Update x86 test snapshot
* Read and store object section alignment
* Combine data/text sections: Pad sections to more than 4-byte alignment if they have alignment specified
* Limit left-panel scrollview to the file tree
Removes the redundant build button
* Expand ScrollArea to full side panel width
* Use auto_shrink(false) instead of set_width
---------
Co-authored-by: Luke Street <luke@street.dev>
* Reimplement colorized data relocation hover diffs
* Fix objdiff-wasm build
Data diffing doesn't seem to be fully implemented in objdiff-wasm yet, so just putting placeholders in so it compiles.
* Reloc hover: Add separators, override special color too
Before, this was comparing, for example, `.text-2`
with `.text-10` with standard string comparison,
yielding `.text-10` before `.text-2`.
Instead, this simply uses a stable sort by name,
which preserves the relative ordering of sections.
* 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
* 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
Implements MIPS relocation pairing logic.
New option for "Register '$' prefix", off by default.
Fixes various regressions introduced by refactoring.
Resolves#122Resolves#156
* 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
* Show reloc diff in func view when data content differs
* Add "Relax shifted data diffs" option
* Display fake pool relocations at end of line
* Diff reloc data by display string instead of raw bytes
This is to handle data symbols that contain multiple values in them at once, such as stringBase. If you compare the target symbol's bytes directly, then any part of the symbol having different bytes will cause *all* relocations to that symbol to show as a diff, even if the specific string being accessed is the same.
* Fix weak stripped symbols showing as a false diff
Fixed this by showing extern symbols correctly instead of skipping them.
* Add "Relax shifted data diffs" option to objdiff-cli
Includes both a command line argument and a keyboard shortcut (S).
* Remove addi string data hack and ... pool name hack
* Clippy fix
* PPC: Clear relocs from GPRs when overwritten
* PPC: Follow branches to improve pool detection accuracy
* PPC: Handle following bctr jump table control flow
* Clippy fixes
* PPC: Fix extern relocations not having their addend copied
* Add option to disable func data value diffing
* PPC: Handle lmw when clearing GPRs
* PPC: Handle moving reloc address with `add` inst
* Combine "relax reloc diffs" with other reloc diff options
* Add v3 config and migrate from v2
---------
Co-authored-by: Luke Street <luke@street.dev>
* 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
* Fix missing dependency feature for objdiff-gui
* Update .gitignore
* Add enter and back hotkeys
* Add scroll hotkeys
* Add hotkeys to select the next symbol above/below the current one in the listing
* Do not clear highlighted symbol when backing out of diff view
* Do not clear highlighted symbol when hovering mouse over an unpaired symbol
* Auto-scroll the keyboard-selected symbols into view if offscreen
* Fix some hotkeys stealing input from focused widgets
e.g. The symbol list was stealing the W/S key presses when typing into the symbol filter text edit.
If the user actually wants to use these shortcuts while a widget is focused, they can simply press the escape key to unfocus all widgets and then press the shortcut.
* Add Ctrl+F/S shortcuts for focusing the object and symbol filter text edits
* Add space as alternative to enter hotkey
This is for consistency with egui's builtint enter/space hotkey for interacting with the focused widget.
* Add hotkeys to change target and base functions
* Split function diff view: Enable PageUp/PageDown/Home/End for scrolling
* Add escape as an alternative to back hotkey
* Fix auto-scrolling to highlighted symbol only working for the left side
The flag is cleared after one scroll to avoid doing it continuously, but this breaks when we need to scroll to both the left and the right symbol at the same time. So now each side has its own flag to keep track of this state independently.
* Simplify clearing of the autoscroll flag, remove &mut State
* Found a better place to clear the autoscroll flag
DiffViewState::post_update is where the flag gets set, so clearing it right before that at the start of the function seems to make the most sense, instead of doing it in App::update.
* Fix missing dependency feature for objdiff-gui
* Update .gitignore
* Display decoded rlwinm info to hover tooltip
* Remove trailing newline when displaying decoded rlwinm info
* Change variable name
* Also update variable name in rlwinm.rs
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.
* 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>
* Fix panic when parsing DWARF 2 line info for empty section
* Fix panic when parsing DWARF 2 line info for empty section
May as well remove both unwraps :p
* Fix data tooltip panic
Prevents panicing when attempting to display the data tooltip for a symbol that is too large by just using as many bytes as needed from the begging of the symbol.
* Don't attempt to interpret wrongly sized data
* Reference data display improvment issue
* Log failure to display a symbol's value
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
Job status is now shown in the top menu bar,
with a new Jobs window that can be toggled.
Build and diff errors are now handled more
gracefully.
Fixes#40
Before, this was running 2 fs::metadata
calls every frame. We don't need to do it
nearly that often, so now it only checks
once every 500ms.
This required refactoring AppConfig into
a separate AppState that holds transient
runtime state along with the loaded
AppConfig.
* Guess reloc data type based on the instruction.
Adds an entry to the reloc tooltip to show the inferred data type
and value.
* Fix clippy warning
* Match on Opcode rather than mnemonic string
"description":"List of glob patterns to explicitly ignore when watching for changes.\nFiles matching these patterns will not trigger a rebuild.\nSupported syntax: https://docs.rs/globset/latest/globset/#syntax",
"items":{
"type":"string"
},
"default":[
"build/**/*"
]
},
"objects":{
"type":"array",
"description":"Use units instead.",
@@ -133,6 +143,13 @@
},
"metadata":{
"ref":"#/$defs/metadata"
},
"symbol_mappings":{
"type":"object",
"description":"Manual symbol mappings from target to base.",
"additionalProperties":{
"type":"string"
}
}
}
},
@@ -168,6 +185,10 @@
"type":"boolean",
"description":"If true, objdiff will run the build command with the context file as an argument to generate it.",
"default":false
},
"preset_id":{
"type":"number",
"description":"The decomp.me preset ID to use for the scratch.\nCompiler and flags in the config will take precedence over the preset, but the preset is useful for organizational purposes."
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