mirror of
https://github.com/yuzu-emu/unicorn
synced 2024-11-24 15:28:25 +00:00
103 lines
2.9 KiB
Python
Executable file
103 lines
2.9 KiB
Python
Executable file
#!/usr/bin/env python
|
|
# Sample code for ARM of Unicorn. Nguyen Anh Quynh <aquynh@gmail.com>
|
|
# Python sample ported by Loi Anh Tuan <loianhtuan@gmail.com>
|
|
|
|
from __future__ import print_function
|
|
from unicorn import *
|
|
from unicorn.arm_const import *
|
|
|
|
|
|
# code to be emulated
|
|
ARM_CODE = "\x37\x00\xa0\xe3\x03\x10\x42\xe0" # mov r0, #0x37; sub r1, r2, r3
|
|
THUMB_CODE = "\x83\xb0" # sub sp, #0xc
|
|
# memory address where emulation starts
|
|
ADDRESS = 0x10000
|
|
|
|
|
|
# callback for tracing basic blocks
|
|
def hook_block(uc, address, size, user_data):
|
|
print(">>> Tracing basic block at 0x%x, block size = 0x%x" %(address, size))
|
|
|
|
|
|
# callback for tracing instructions
|
|
def hook_code(uc, address, size, user_data):
|
|
print(">>> Tracing instruction at 0x%x, instruction size = %u" %(address, size))
|
|
|
|
|
|
# Test ARM
|
|
def test_arm():
|
|
print("Emulate ARM code")
|
|
try:
|
|
# Initialize emulator in ARM mode
|
|
mu = Uc(UC_ARCH_ARM, UC_MODE_ARM)
|
|
|
|
# map 2MB memory for this emulation
|
|
mu.mem_map(ADDRESS, 2 * 1024 * 1024)
|
|
|
|
# write machine code to be emulated to memory
|
|
mu.mem_write(ADDRESS, ARM_CODE)
|
|
|
|
# initialize machine registers
|
|
mu.reg_write(UC_ARM_REG_R0, 0x1234)
|
|
mu.reg_write(UC_ARM_REG_R2, 0x6789)
|
|
mu.reg_write(UC_ARM_REG_R3, 0x3333)
|
|
|
|
# tracing all basic blocks with customized callback
|
|
mu.hook_add(UC_HOOK_BLOCK, hook_block)
|
|
|
|
# tracing all instructions with customized callback
|
|
mu.hook_add(UC_HOOK_CODE, hook_code)
|
|
|
|
# emulate machine code in infinite time
|
|
mu.emu_start(ADDRESS, ADDRESS + len(ARM_CODE))
|
|
|
|
# now print out some registers
|
|
print(">>> Emulation done. Below is the CPU context")
|
|
|
|
r0 = mu.reg_read(UC_ARM_REG_R0)
|
|
r1 = mu.reg_read(UC_ARM_REG_R1)
|
|
print(">>> R0 = 0x%x" %r0)
|
|
print(">>> R1 = 0x%x" %r1)
|
|
|
|
except UcError as e:
|
|
print("ERROR: %s" % e)
|
|
|
|
|
|
def test_thumb():
|
|
print("Emulate THUMB code")
|
|
try:
|
|
# Initialize emulator in thumb mode
|
|
mu = Uc(UC_ARCH_ARM, UC_MODE_THUMB)
|
|
|
|
# map 2MB memory for this emulation
|
|
mu.mem_map(ADDRESS, 2 * 1024 * 1024)
|
|
|
|
# write machine code to be emulated to memory
|
|
mu.mem_write(ADDRESS, THUMB_CODE)
|
|
|
|
# initialize machine registers
|
|
mu.reg_write(UC_ARM_REG_SP, 0x1234)
|
|
|
|
# tracing all basic blocks with customized callback
|
|
mu.hook_add(UC_HOOK_BLOCK, hook_block)
|
|
|
|
# tracing all instructions with customized callback
|
|
mu.hook_add(UC_HOOK_CODE, hook_code)
|
|
|
|
# emulate machine code in infinite time
|
|
mu.emu_start(ADDRESS, ADDRESS + len(THUMB_CODE))
|
|
|
|
# now print out some registers
|
|
print(">>> Emulation done. Below is the CPU context")
|
|
|
|
sp = mu.reg_read(UC_ARM_REG_SP)
|
|
print(">>> SP = 0x%x" %sp)
|
|
|
|
except UcError as e:
|
|
print("ERROR: %s" % e)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
test_arm()
|
|
print("=" * 20)
|
|
test_thumb()
|