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Regression test for issue #98

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This is a problem with sign extension during uc_reg_write
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Sean Heelan 2015-09-03 00:48:20 +07:00
parent 03683a7960
commit fe51b9a9ae
1 changed files with 23 additions and 0 deletions
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regress/reg_write_sign_extension.py Normal file
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#!/usr/bin/env python
"""See https://github.com/unicorn-engine/unicorn/issues/98"""
import unicorn
ADDR = 0xffaabbcc
def hook_mem_invalid(mu, access, address, size, value, user_data):
print ">>> Expected value: 0x%x, actual value: 0x%x" % (ADDR, address)
assert(address == ADDR)
mu.mem_map(address & 0xfffff000, 4 * 1024)
mu.mem_write(address, b'\xcc')
return True
mu = unicorn.Uc(unicorn.UC_ARCH_X86, unicorn.UC_MODE_32)
mu.reg_write(unicorn.x86_const.UC_X86_REG_EBX, ADDR)
mu.mem_map(0x10000000, 1024 * 4)
# jmp ebx
mu.mem_write(0x10000000, b'\xff\xe3')
mu.hook_add(unicorn.UC_HOOK_MEM_INVALID, hook_mem_invalid)
mu.emu_start(0x10000000, 0x10000000 + 2, count=1)