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Thunk alert

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This commit is contained in:
disinvite 2024-03-23 17:50:16 -04:00
parent bae788fc45
commit 587c262050
1 changed files with 13 additions and 0 deletions
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13
tools/isledecomp/isledecomp/compare/core.py
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@ -372,6 +372,19 @@ def _compare_function(self, match: MatchInfo) -> DiffReport:
orig_raw = self.orig_bin.read(match.orig_addr, match.size) orig_raw = self.orig_bin.read(match.orig_addr, match.size)
recomp_raw = self.recomp_bin.read(match.recomp_addr, match.size) recomp_raw = self.recomp_bin.read(match.recomp_addr, match.size)
# It's unlikely that a function other than an adjuster thunk would
# start with a SUB instruction, so alert to a possible wrong
# annotation here.
# There's probably a better place to do this, but we're reading
# the function bytes here already.
try:
if orig_raw[0] == 0x2B and recomp_raw[0] != 0x2B:
logger.warning(
"Possible thunk at 0x%x (%s)", match.orig_addr, match.name
)
except IndexError:
pass
def orig_lookup(addr: int) -> Optional[str]: def orig_lookup(addr: int) -> Optional[str]:
m = self._db.get_by_orig(addr) m = self._db.get_by_orig(addr)
if m is None: if m is None: