mirror of
https://github.com/Druthulu/BFM-decomp
synced 2026-09-26 13:33:34 -04:00
Drew T
3b2093dfde
- asm-differ calls apply(config, args) with a fixed signature, so the active binary
is selected via the BFM_BINARY env var (default main = the EXE images); BINARIES
table -> {baseimg, myimg, mapfile}; unknown BFM_BINARY errors loud
- main keeps expected/build/us/SLUS_007.26.{elf,map} (no-op for the EXE workflow)
- gate: apply() unit test (main->EXE paths; bogus->error); asm-differ -o func_80018F20
--format json -> current_score=0 (MATCH) through the parameterized config
38 lines
2.1 KiB
Python
38 lines
2.1 KiB
Python
# asm-differ project config — BFM-decomp (SLUS_007.26, USA, PSX little-endian R3000).
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#
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# The matching oracle: diff one function's codegen in our build against the
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# byte-identical `expected/` baseline. Object mode (-o) is the default workflow:
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# .venv/bin/python tools/asm-differ/diff.py -mo <function> # -m rebuild, -o vs object
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# Score 0 = matched (instruction-identical incl. regalloc); anything else = not matched.
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#
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# `expected/` is a snapshot of a SHA1-GREEN build (= the original bytes, since the
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# all-INCLUDE_ASM build is byte-identical). Re-snapshot it ONLY after a green build
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# (`make expected`) — a stale baseline causes phantom matches/regressions (SETUP.md §6.4).
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import os
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# Per-binary asm-differ images (Phase 9). asm-differ calls apply(config, args) with a fixed
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# signature we don't control, so the active binary is selected via the BFM_BINARY env var
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# (default main = the retail EXE; a Gen2 binary adds an entry + sets BFM_BINARY=<alias>).
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BINARIES = {
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"main": dict(baseimg="expected/build/us/SLUS_007.26.elf",
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myimg="build/us/SLUS_007.26.elf",
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mapfile="build/us/SLUS_007.26.map"),
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}
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def apply(config, args):
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_bin = os.environ.get("BFM_BINARY", "main")
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if _bin not in BINARIES:
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raise SystemExit(f"diff_settings: unknown BFM_BINARY={_bin!r} (known: {', '.join(BINARIES)})")
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_cfg = BINARIES[_bin]
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config["arch"] = "mipsel" # little-endian MIPS, R3000 (PSX CPU)
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config["baseimg"] = _cfg["baseimg"] # image-mode target (byte-identical baseline)
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config["myimg"] = _cfg["myimg"] # image-mode current build
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config["mapfile"] = _cfg["mapfile"] # GNU ld -Map: symbol -> object + address
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config["map_format"] = "gnu"
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config["expected_dir"] = "expected/" # -o: expected path = expected_dir + objpath
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config["build_dir"] = "build/" # (objpath "build/src/800.o" -> expected/build/src/800.o)
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config["source_directories"] = ["src", "asm", "include"]
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config["objdump_executable"] = "mipsel-linux-gnu-objdump"
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config["makeflags"] = []
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