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read data for SHT_NOBITS sections fixed

This commit is contained in:
Nicolas 2025-02-28 15:26:37 +01:00
parent 675146e744
commit 553355cc12
1 changed files with 9 additions and 3 deletions
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12
src/pelfy/__init__.py
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@ -73,8 +73,11 @@ class elf_symbol():
Symbol data
"""
assert self.section, 'This symbol is not associated to a data section'
offset = self.section['sh_offset'] + self['st_value']
return self.file.read_bytes(offset, self['st_size'])
if self.section.type == 'SHT_NOBITS':
return b'\x00' * self['sh_size']
else:
offset = self.section['sh_offset'] + self['st_value']
return self.file.read_bytes(offset, self['st_size'])
def read_data_hex(self) -> str:
return ' '.join(f'{d:02X}' for d in self.read_data())
@ -160,7 +163,10 @@ class elf_section():
Returns:
Data of the section
"""
return self.file.read_bytes(self['sh_offset'], self['sh_size'])
if self.type == 'SHT_NOBITS':
return b'\x00' * self['sh_size']
else:
return self.file.read_bytes(self['sh_offset'], self['sh_size'])
def get_symbols(self) -> 'symbol_list':
"""Lists all ELF symbols associated with this section