Files
unicorn/tests/regress/leaked_refs.py
Eli 9f578946d5 Revamp Python regression tests suite (#2022)
* Fix Python regression test suite (partial)

* Fix Python regression test suite

* Add a test for mapping at high addresses

* Add ctl tests
2024-10-13 13:14:10 +08:00

75 lines
1.6 KiB
Python

#!/usr/bin/python
import gc
import regress
import weakref
from unicorn import *
from unicorn.x86_const import *
ADDRESS = 0x8048000
STACK_ADDRESS = 0xffff000
STACK_SIZE = 0x1000
CODE = (
b"\x31\xDB" # xor ebx, ebx
b"\x53" # push ebx
b"\x43" # inc ebx
b"\x53" # push ebx
b"\x6A\x02" # push 2
b"\x6A\x66" # push 66h
b"\x58" # pop eax
b"\x89\xE1" # mov ecx, esp
b"\xCD\x80" # int 80h
)
EP = ADDRESS + 0x54
# Dictionary to keep weak references to instances
instances = weakref.WeakValueDictionary()
def create_instance(key, *args, **kwargs):
obj = Uc(*args, **kwargs)
instances[key] = obj
return obj
def hook_code(mu, address, size, user_data):
regress.logger.debug(">>> Tracing instruction at %#x, instruction size = %u", address, size)
def emu_loop(key):
emu = create_instance(key, UC_ARCH_X86, UC_MODE_32)
emu.mem_map(ADDRESS, 0x1000)
emu.mem_write(EP, CODE)
emu.mem_map(STACK_ADDRESS, STACK_SIZE)
emu.reg_write(UC_X86_REG_ESP, STACK_ADDRESS + STACK_SIZE)
i = emu.hook_add(UC_HOOK_CODE, hook_code, None)
emu.hook_del(i)
emu.emu_start(EP, EP + len(CODE), count = 3)
regress.logger.debug("EIP: %#x", emu.reg_read(UC_X86_REG_EIP))
def debugMem():
gc.collect() # don't care about stuff that would be garbage collected properly
assert(len(instances) == 0)
class EmuLoopReferenceTest(regress.RegressTest):
def runTest(self):
for i in range(5):
emu_loop('obj%d' % i)
debugMem()
if __name__ == '__main__':
regress.main()