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* git subrepo clone git@github.com:simonlindholm/asm-differ.git tools/asm-differ subrepo: subdir: "tools/asm-differ" merged: "11eee5916" upstream: origin: "git@github.com:simonlindholm/asm-differ.git" branch: "main" commit: "11eee5916" git-subrepo: version: "0.4.6" origin: "https://github.com/ingydotnet/git-subrepo" commit: "110b9eb" * ln -s ./tools/asm-differ/diff.py diff.py
56 lines
2.1 KiB
Markdown
56 lines
2.1 KiB
Markdown
# asm-differ
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Nice differ for assembly code. Currently supports MIPS, PPC, AArch64, ARM32, SH2, SH4, and m68k; should be easy to hack to support other instruction sets.
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## Dependencies
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- Python >= 3.6
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- `python3 -m pip install --user colorama watchdog levenshtein cxxfilt` (also `dataclasses` if on 3.6)
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## Usage
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Create a file `diff_settings.py` in some directory (see the one in this repo for an example). Then from that directory, run
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```bash
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/path/to/diff.py [flags] (function|rom addr)
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```
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Recommended flags are `-mwo` (automatically run `make` on source file changes, and include symbols in diff). See `--help` for more details.
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### Tab completion
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[argcomplete](https://kislyuk.github.io/argcomplete/) can be optionally installed (with `python3 -m pip install argcomplete`) to enable tab completion in a bash shell, completing options and symbol names using the linker map. It also requires a bit more setup:
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If invoking the script **exactly** as `./diff.py`, the following should be added to the `.bashrc` according to argcomplete's instructions:
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```bash
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eval "$(register-python-argcomplete ./diff.py)"
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```
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If that doesn't work, run `register-python-argcomplete ./diff.py` in your terminal and copy the output to `.bashrc`.
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If setup correctly (don't forget to restart the shell), `complete | grep ./diff.py` should output:
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```bash
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complete -o bashdefault -o default -o nospace -F _python_argcomplete ./diff.py
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```
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Note for developers or for general troubleshooting: run `export _ARC_DEBUG=` to enable debug output during tab-completion, it may show otherwise silenced errors. Use `unset _ARC_DEBUG` or restart the terminal to disable.
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### Contributing
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Contributions are very welcome! Some notes on workflow:
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`black` is used for code formatting. You can either run `black diff.py` manually, or set up a pre-commit hook:
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```bash
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pip install pre-commit black
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pre-commit install
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```
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Type annotations are used for all Python code. `mypy` should pass without any errors.
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PRs that skip the above are still welcome, however.
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The targeted Python version is 3.6. There are currently no tests.
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