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fixed usage of offset_in_section instead of st_value

This commit is contained in:
Nicolas 2026-01-27 16:57:39 +01:00
parent 5f0c36fef4
commit d7e7876afd
1 changed files with 2 additions and 5 deletions
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7
src/pelfy/_main.py
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@ -124,15 +124,12 @@ class elf_symbol():
@property @property
def data(self) -> bytes: def data(self) -> bytes:
"""Returns the binary data the symbol is pointing to. """Returns the binary data the symbol is pointing to.
The offset in the ELF file is calculated by:
sections[symbol.st_shndx].sh_offset + symbol.st_value
""" """
assert self.section, 'This symbol is not associated to a data section' assert self.section, 'This symbol is not associated to a data section'
if self.section.type == 'SHT_NOBITS': if self.section.type == 'SHT_NOBITS':
return b'\x00' * self['st_size'] return b'\x00' * self['st_size']
else: else:
offset = self.section['sh_offset'] + self['st_value'] return self.file.read_bytes(self.offset_in_file, self['st_size'])
return self.file.read_bytes(offset, self['st_size'])
@property @property
def data_hex(self) -> str: def data_hex(self) -> str:
@ -151,7 +148,7 @@ class elf_symbol():
assert self.section and self.section.type == 'SHT_PROGBITS' assert self.section and self.section.type == 'SHT_PROGBITS'
for reloc in self.file.get_relocations(): for reloc in self.file.get_relocations():
if reloc.target_section == self.section: if reloc.target_section == self.section:
offset = reloc['r_offset'] - self['st_value'] offset = reloc['r_offset'] - self.offset_in_section
if 0 <= offset < self['st_size']: if 0 <= offset < self['st_size']:
ret.append(reloc) ret.append(reloc)
return relocation_list(ret) return relocation_list(ret)