#!/usr/bin/env python
import sys

base_addr = int(sys.argv[1], 16)

f = open(sys.argv[2], 'r') # gadgets

for line in f.readlines():
	target_str, gadget = line.split(':')
	target_addr = int(target_str, 16)

	# check alignment
	if target_addr % 8 != 0:
		continue

	offset = (target_addr - base_addr) / 8
	print 'offset =', (1 << 64) + offset
        print 'gadget =', gadget.strip()
	print 'stack addr = %x' % (target_addr & 0xffffffff)
	break