load_gnu_debugdata_symbols.py usefull for android binaries / libs

load_gnu_debugdata_symbols.py

#!/usr/bin/env python2
# coding: utf8
import lief
import lzma


def get_debugdata(elf_file):
	binary  = lief.parse(elf_file)
	debugdata=""
	try:
		gnu_debug_data = binary.get_section(".gnu_debugdata")
		debugdata = "".join(map(chr, gnu_debug_data.content))
	except lief.not_found:
		return None

	return lzma.decompress(debugdata)

def get_symbols(input_file):
	symbols={}
	debug_elf = get_debugdata(input_file)
	if debug_elf != None:
		debug_binary = lief.parse(raw=map(ord,debug_elf), name="toto")
		for symbol in debug_binary.static_symbols:
			name = str(symbol.name)
			if name == "":
				continue

			suffix=0
			uniq_name=name
			while uniq_name in symbols.keys():
				uniq_name="%s_%d" % (name, suffix)
				suffix+=1

			symbols[uniq_name] = symbol.value
	return symbols

def set_symbols(symbols):
	for symbol in symbols.keys():
		set_name(symbols[symbol], symbol, SN_CHECK)
		print "0x%08x => %s" % (symbols[symbol], symbol)



symbols = get_symbols(get_input_file_path())
set_symbols(symbols)