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#!/usr/bin/python3
import argparse
from elftools.elf.elffile import ELFFile
def process_file(file, symbol, base):
with open(file, 'rb') as f:
elf = ELFFile(f)
symtab = elf.get_section_by_name('.symtab')
mains = symtab.get_symbol_by_name(symbol)
if len(mains) != 1:
print ("Failed to find main")
return 1
main_addr = mains[0]['st_value']
main = base + main_addr
print ("0x%016x" % main)
return 0
def hex_value(x):
return int(x, 16)
def main():
parser = argparse.ArgumentParser(description='Process some integers.')
parser.add_argument('-f', '--file', dest='file', type=str,
help='elf file name', required=True)
parser.add_argument('-s', '--symbol', dest='symbol', type=str,
help='symbol name', required=True)
parser.add_argument('-b', '--base', dest='base', type=hex_value,
help='elf base address', required=True)
args = parser.parse_args()
return process_file (args.file, args.symbol, args.base)
if __name__ == "__main__":
ret = main()
exit(ret)
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