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pelfy
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bits attibute for relocations added, some docstring fixes and table output extended

This commit is contained in:
Nicolas Kruse 2025-03-04 21:54:47 +01:00
parent ea9660dd8e
commit e4813006a5
1 changed files with 16 additions and 8 deletions
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24
src/pelfy/__init__.py
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@ -213,13 +213,17 @@ class elf_relocation():
Attributes: Attributes:
file: Points to the parent ELF file object. file: Points to the parent ELF file object.
index: Absolut index of the relocation the associated relocation section index: Absolut index of the relocation in the associated relocation section
symbol: Symbol to relocate
type: Type of the relocation type: Type of the relocation
calculation: Description of the relocation calculation calculation: Description of the relocation calculation
target_section: Pointing to the section that is relocation applies to bits: number ob bits to patch by the relocation
target_section: Pointing to the section where this relocation applies to
fields: All relocation header fields as dict fields: All relocation header fields as dict
""" """
@ -231,11 +235,13 @@ class elf_relocation():
self.symbol = file.symbols[symbol_index] self.symbol = file.symbols[symbol_index]
reloc_types = fdat.relocation_table_types.get(file.architecture) reloc_types = fdat.relocation_table_types.get(file.architecture)
if reloc_types and relocation_type in reloc_types: if reloc_types and relocation_type in reloc_types:
self.calculation = reloc_types[relocation_type][2]
self.type = reloc_types[relocation_type][0] self.type = reloc_types[relocation_type][0]
self.bits = reloc_types[relocation_type][1]
self.calculation = reloc_types[relocation_type][2]
else: else:
self.calculation = ''
self.type = str(relocation_type) self.type = str(relocation_type)
self.bits = 0
self.calculation = ''
self.target_section: elf_section = file.sections[sh_info] self.target_section: elf_section = file.sections[sh_info]
def __getitem__(self, key: str | int) -> int: def __getitem__(self, key: str | int) -> int:
@ -248,7 +254,9 @@ class elf_relocation():
def __repr__(self) -> str: def __repr__(self) -> str:
return f'index {self.symbol.index}\n' +\ return f'index {self.symbol.index}\n' +\
f'symbol {self.symbol.name}\n' +\ f'symbol {self.symbol.name}\n' +\
f'relocation type {self.type} ({self.calculation})\n' +\ f'relocation type {self.type}\n' +\
f'calculation {self.calculation}\n' +\
f'bits {self.bits}\n' +\
'\n'.join(f'{k:18} {v:4}' for k, v in self.fields.items()) + '\n' '\n'.join(f'{k:18} {v:4}' for k, v in self.fields.items()) + '\n'
@ -348,10 +356,10 @@ class relocation_list(elf_list[elf_relocation]):
"""A class for representing a list of ELF relocations """A class for representing a list of ELF relocations
""" """
def _compact_table(self) -> tuple[list[str], list[list[int | str]], list[str]]: def _compact_table(self) -> tuple[list[str], list[list[int | str]], list[str]]:
columns = ['index', 'symbol name', 'type', 'calculation'] columns = ['index', 'symbol name', 'type', 'calculation', 'bits']
data: list[list[str | int]] = [[item.index, item.symbol.name, item.type, data: list[list[str | int]] = [[item.index, item.symbol.name, item.type,
item.calculation] for item in self] item.calculation, item.bits] for item in self]
return columns, data, ['index'] return columns, data, ['index', 'bits']
class elf_file: class elf_file: