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Ordinal imports (#534)

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MS 2024-02-06 15:03:55 -05:00 committed by GitHub
parent 03423b2ffa
commit 00e32673d1
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1 changed files with 10 additions and 4 deletions
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14
tools/isledecomp/isledecomp/bin.py
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@ -308,9 +308,15 @@ class Bin:
if lookup_addr == 0 or import_addr == 0:
break
# Skip the "Hint" field, 2 bytes
name_ofs = lookup_addr + self.imagebase + 2
symbol_name = self.read_string(name_ofs).decode("ascii")
# MSB set if this is an ordinal import
if lookup_addr & 0x80000000 != 0:
ordinal_num = lookup_addr & 0x7FFF
symbol_name = f"Ordinal_{ordinal_num}"
else:
# Skip the "Hint" field, 2 bytes
name_ofs = lookup_addr + self.imagebase + 2
symbol_name = self.read_string(name_ofs).decode("ascii")
yield (dll_name, symbol_name, ofs_iat)
ofs_ilt += 4
ofs_iat += 4
@ -384,7 +390,7 @@ class Bin:
if section.contains_vaddr(addr):
return (i + 1, addr - section.virtual_address)
raise InvalidVirtualAddressError(hex(addr))
raise InvalidVirtualAddressError(f"{self.filename} : {hex(addr)}")
def is_valid_section(self, section_id: int) -> bool:
"""The PDB will refer to sections that are not listed in the headers