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https://github.com/SeekyCt/spm-decomp.git
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54 lines
1.9 KiB
Python
54 lines
1.9 KiB
Python
"""
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Disassembles a single function
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"""
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from argparse import ArgumentParser
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from os import system, unlink
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import os.path
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from tempfile import NamedTemporaryFile
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import common as c
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def get_function(binary: c.Binary, source: c.SourceDesc, addr: int, extra: bool) -> str:
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# Get context
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ctx = c.DOL_CTX if binary == c.Binary.DOL else c.REL_CTX
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assert os.path.exists(ctx.labels), "Error: analysis has not ran!"
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# Disassemble function
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extraflag = "-e" if extra else ""
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srcflag = f"-n {source}" if isinstance(source, str) else ""
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with NamedTemporaryFile(suffix=".s", delete=False) as tmp:
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try:
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tmp.close()
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ret = system(
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f"{c.DISASSEMBLER} {ctx.binary} {ctx.labels} {ctx.relocs} {tmp.name} -f {addr:x} "
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f"-m {c.GAME_SYMBOLS} {srcflag} -q {extraflag}"
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)
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assert ret == 0, f"Disassembly error code {ret}"
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with open(tmp.name) as f:
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asm = f.read()
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finally:
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unlink(tmp.name)
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return asm
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if __name__=="__main__":
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parser = ArgumentParser()
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parser.add_argument("sym", type=str, help="Symbol name or address")
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parser.add_argument("-e", "--extra", action="store_true",
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help="Include referenced jumptables")
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parser.add_argument("-d", "--dol", action="store_true", help="Prioritise dol-local symbols")
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parser.add_argument("-r", "--rel", action="store_true", help="Prioritise rel-local symbols")
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parser.add_argument("-n", "--source-name", type=str, help="Prioritise source-local symbols")
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args = parser.parse_args()
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# Find address
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assert not (args.dol and args.rel), "--dol and --rel are incompatible"
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addr = c.lookup_sym(args.sym, args.dol, args.rel, args.source_name)
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assert addr is not None, f"Symbol {args.sym} not found"
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# Find containing binary
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binary, source = c.get_containing_slice(addr)
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print(get_function(binary, source, addr, args.extra))
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