mirror of
https://github.com/encounter/decomp.me.git
synced 2026-03-30 11:06:27 -07:00
Mark Street
86b9dfdf8d
* Add has_decompiler for arm32 platforms * Handle missing '.syntax unified' for gba * allow fallback to default compiler if arch is supported
50 lines
1.8 KiB
Python
50 lines
1.8 KiB
Python
import logging
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from coreapp import compilers
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from coreapp.compilers import Compiler
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from coreapp.m2c_wrapper import M2CError, M2CWrapper
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from coreapp.platforms import Platform
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logger = logging.getLogger(__name__)
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MAX_M2C_ASM_LINES = 15000
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DECOMP_WITH_CONTEXT_FAILED_PREAMBLE = "/* Decompilation with context failed; here's the decompilation without context: */\n"
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class DecompilerWrapper:
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@staticmethod
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def decompile(
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default_source_code: str,
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platform: Platform,
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asm: str,
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context: str,
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compiler: Compiler,
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) -> str:
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if compiler == compilers.DUMMY:
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return f"decompiled({asm})"
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ret = default_source_code
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if platform.arch in ["mips", "mipsee", "mipsel", "mipsel:4000", "ppc", "arm32"]:
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if len(asm.splitlines()) > MAX_M2C_ASM_LINES:
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return "/* Too many lines to decompile; please run m2c manually */"
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try:
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if platform.id == "gba" and "thumb_func_start" in asm:
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asm = f".syntax unified\n{asm}"
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ret = M2CWrapper.decompile(asm, context, compiler, platform.arch)
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except M2CError as e:
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# Attempt to decompile the source without context as a last-ditch effort
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try:
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ret = M2CWrapper.decompile(asm, "", compiler, platform.arch)
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ret = f"{e}\n{DECOMP_WITH_CONTEXT_FAILED_PREAMBLE}\n{ret}"
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except M2CError as e:
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ret = f"{e}\n{default_source_code}"
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except Exception:
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logger.exception("Error running m2c")
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ret = f"/* Internal error while running m2c */\n{default_source_code}"
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else:
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ret = f"/* No decompiler yet implemented for {platform.arch} */\n{default_source_code}"
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return ret
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