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"""Find where there are jumps to a given target.
Syntax:
python jumpto.py file.log b0123456
"""
from __future__ import print_function
import sys, struct
from viewcode import World
def find_target(coderange, target):
addr = coderange.addr
data = coderange.data
for i in range(len(data)-3):
jtarg = addr + (struct.unpack("i", data[i:i+4])[0] + i + 4)
if not ((jtarg - target) & 0xFFFFFFFFL):
print(hex(addr + i + 4))
if __name__ == '__main__':
target = int(sys.argv[2], 16)
f = open(sys.argv[1], 'r')
world = World()
world.parse(f, textonly=True)
for coderange in world.ranges:
find_target(coderange, target)
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