mirror of
https://github.com/lief-project/LIEF
synced 2026-06-08 15:30:44 +00:00
Romain Thomas
62 lines
1.6 KiB
Python
62 lines
1.6 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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# Description
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# -----------
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# In this example, we assume that we found
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# the ``main`` function at address 0x402A00
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# and we add a symtab symbol to the binary
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# so that we can do:
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#
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# (gdb) break main
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# Breakpoint 1 at 0x402a00
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from lief import ELF
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import sys
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def main():
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binary = ELF.parse(sys.argv[1])
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symtab_section = ELF.Section()
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symtab_section.name = ""
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symtab_section.type = ELF.Section.TYPE.SYMTAB
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symtab_section.entry_size = 0x18
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symtab_section.alignment = 8
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symtab_section.link = len(binary.sections) + 1
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symtab_section.content = [0] * 100
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symstr_section = ELF.Section()
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symstr_section.name = ""
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symstr_section.type = ELF.Section.TYPE.STRTAB
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symstr_section.entry_size = 1
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symstr_section.alignment = 1
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symstr_section.content = [0] * 100
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symtab_section = binary.add(symtab_section, loaded=False)
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symstr_section = binary.add(symstr_section, loaded=False)
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symbol = ELF.Symbol()
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symbol.name = ""
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symbol.type = ELF.Symbol.TYPE.NOTYPE
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symbol.value = 0
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symbol.binding = ELF.Symbol.BINDING.LOCAL
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symbol.size = 0
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symbol.shndx = 0
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symbol = binary.add_symtab_symbol(symbol)
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symbol = ELF.Symbol()
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symbol.name = "main"
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symbol.type = ELF.Symbol.TYPE.FUNC
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symbol.value = 0x402A00
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symbol.binding = ELF.Symbol.BINDING.LOCAL
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symbol.shndx = 14
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symbol = binary.add_symtab_symbol(symbol)
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print(symbol)
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binary.write(sys.argv[2])
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if __name__ == "__main__":
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main()
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