mirror of
https://github.com/cea-sec/miasm
synced 2026-06-21 13:48:18 +00:00
Fabrice Desclaux
6e09df71a3
Fat patch here: some API have changed. Each irbloc now affects a special "IRDst" register which is used to describe the destination irbloc. It allows simple description of architectures using delay slots. Architectures semantic and tcc/python jitter are modified in consequence. LLVM jitter is disabled for now, but should be patch soon.
71 lines
2.2 KiB
Python
71 lines
2.2 KiB
Python
#!/usr/bin/env python
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#-*- coding:utf-8 -*-
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from argparse import ArgumentParser
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from miasm2.analysis import debugging, gdbserver
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from miasm2.jitter.jitload import vm_load_elf, libimp, preload_elf
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from miasm2.analysis.machine import Machine
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from pdb import pm
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parser = ArgumentParser(
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description="""Sandbox an elf binary with arm engine
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(ex: test_jit_arm.py example/md5_arm A684)""")
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parser.add_argument("-r", "--log-regs",
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help="Log registers value for each instruction",
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action="store_true")
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parser.add_argument("-m", "--log-mn",
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help="Log desassembly conversion for each instruction",
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action="store_true")
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parser.add_argument("-n", "--log-newbloc",
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help="Log basic blocks processed by the Jitter",
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action="store_true")
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parser.add_argument("-j", "--jitter",
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help="Jitter engine. Possible values are : tcc (default), llvm",
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default="tcc")
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parser.add_argument("-d", "--debugging",
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help="Attach a CLI debugguer to the sandboxed programm",
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action="store_true")
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parser.add_argument("binary",
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help="binary to run")
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parser.add_argument("addr",
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help="start exec on addr")
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machine = Machine("arm")
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def jit_arm_binary(args):
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filepath, entryp = args.binary, int(args.addr, 16)
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myjit = machine.jitter(jit_type = args.jitter)
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myjit.init_stack()
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# Log level (if available with jitter engine)
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myjit.jit.log_regs = args.log_regs
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myjit.jit.log_mn = args.log_mn
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myjit.jit.log_newbloc = args.log_newbloc
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elf = vm_load_elf(myjit.vm, filepath)
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libs = libimp()
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preload_elf(myjit.vm, elf, libs)
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myjit.add_lib_handler(libs)
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myjit.add_breakpoint(0x1337BEEF, lambda _: exit(0))
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regs = myjit.cpu.vm_get_gpreg()
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regs['LR'] = 0x1337BEEF
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myjit.cpu.vm_set_gpreg(regs)
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myjit.init_run(entryp)
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# Handle debugging
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if args.debugging is True:
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dbg = debugging.Debugguer(myjit)
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cmd = debugging.DebugCmd(dbg)
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cmd.cmdloop()
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else:
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print(myjit.continue_run())
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if __name__ == '__main__':
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from sys import stderr
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args = parser.parse_args()
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jit_arm_binary(args)
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