2015-09-02 17:48:20 +00:00
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#!/usr/bin/env python
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"""See https://github.com/unicorn-engine/unicorn/issues/98"""
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import unicorn
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ADDR = 0xffaabbcc
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def hook_mem_invalid(mu, access, address, size, value, user_data):
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2015-09-04 03:56:14 +00:00
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print ">>> Access type: %u, expected value: 0x%x, actual value: 0x%x" % (access, ADDR, address)
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2015-09-02 17:48:20 +00:00
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assert(address == ADDR)
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mu.mem_map(address & 0xfffff000, 4 * 1024)
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mu.mem_write(address, b'\xcc')
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return True
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mu = unicorn.Uc(unicorn.UC_ARCH_X86, unicorn.UC_MODE_32)
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mu.reg_write(unicorn.x86_const.UC_X86_REG_EBX, ADDR)
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mu.mem_map(0x10000000, 1024 * 4)
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# jmp ebx
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mu.mem_write(0x10000000, b'\xff\xe3')
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mu.hook_add(unicorn.UC_HOOK_MEM_INVALID, hook_mem_invalid)
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mu.emu_start(0x10000000, 0x10000000 + 2, count=1)
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