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Regression test for issue #82 (emulator hang on jmp REG)

This commit is contained in:
Sean Heelan 2015-08-30 22:42:48 +07:00
parent 45cce49751
commit 1b6469e60f
1 changed files with 28 additions and 0 deletions
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regress/jmp_ebx_hang.py Executable file
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#!/usr/bin/env python
"""See https://github.com/unicorn-engine/unicorn/issues/82"""
import unicorn
CODE_ADDR = 0x10101000
CODE = b'\xff\xe3'
mu = unicorn.Uc(unicorn.UC_ARCH_X86, unicorn.UC_MODE_32)
mu.mem_map(CODE_ADDR, 1024 * 4)
mu.mem_write(CODE_ADDR, CODE)
mu.reg_write(unicorn.x86_const.UC_X86_REG_EBX, 0x0)
print "jmp ebx, with ebx == 0"
try:
mu.emu_start(CODE_ADDR, CODE_ADDR + 2, count=1)
except unicorn.UcError as e:
print "Error: %s" % e
mu = unicorn.Uc(unicorn.UC_ARCH_X86, unicorn.UC_MODE_32)
mu.mem_map(CODE_ADDR, 1024 * 4)
# If we write this address to EBX then the emulator hangs on emu_start
mu.reg_write(unicorn.x86_const.UC_X86_REG_EBX, 0xaa96a47f)
mu.mem_write(CODE_ADDR, CODE)
print "jmp ebx, with ebx == 0xaa96a47f"
try:
mu.emu_start(CODE_ADDR, CODE_ADDR + 2, count=1)
except unicorn.UcError as e:
print "Error: %s" % e