yuzu/unicorn
1
0
Fork 0
mirror of https://github.com/yuzu-emu/unicorn.git synced 2025-01-11 06:05:38 +00:00
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #85 from SeanHeelan/master

Browse source 
Regression test for issue #82 (Hang on jmp EBX with a non-zero EBX pointing to umapped memory)
This commit is contained in:
Nguyen Anh Quynh 2015-08-30 23:53:51 +08:00
parent 45cce49751 4b05e736a1
commit 73cf6e700e
1 changed files with 33 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

33
regress/jmp_ebx_hang.py Executable file
View file

@ -0,0 +1,33 @@
#!/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)
# If EBX is zero then an exception is raised, as expected
mu.reg_write(unicorn.x86_const.UC_X86_REG_EBX, 0x0)
try:
mu.emu_start(CODE_ADDR, CODE_ADDR + 2, count=1)
except unicorn.UcError as e:
assert(e.errno == unicorn.UC_ERR_CODE_INVALID)
else:
assert(False)
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)
try:
mu.emu_start(CODE_ADDR, CODE_ADDR + 2, count=1)
except unicorn.UcError as e:
assert(e.errno == unicorn.UC_ERR_CODE_INVALID)
else:
assert(False)
print "Success"