mirror of
https://github.com/angr/angr
synced 2026-06-08 13:09:39 +00:00
pre-commit-ci[bot]
563fb5f862
* [pre-commit.ci] pre-commit autoupdate updates: - [github.com/astral-sh/ruff-pre-commit: v0.14.11 → v0.14.13](https://github.com/astral-sh/ruff-pre-commit/compare/v0.14.11...v0.14.13) - [github.com/psf/black-pre-commit-mirror: 25.12.0 → 26.1.0](https://github.com/psf/black-pre-commit-mirror/compare/25.12.0...26.1.0) * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci --------- Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
90 lines
3.1 KiB
Python
Executable File
90 lines
3.1 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
# pylint: disable=missing-class-docstring,no-self-use,line-too-long
|
|
from __future__ import annotations
|
|
|
|
__package__ = __package__ or "tests.analyses" # pylint:disable=redefined-builtin
|
|
|
|
import logging
|
|
import os
|
|
import unittest
|
|
|
|
import angr
|
|
|
|
from tests.common import bin_location
|
|
|
|
test_location = os.path.join(bin_location, "tests")
|
|
|
|
|
|
def run_tracker(track_mem, use_bp):
|
|
p = angr.Project(os.path.join(test_location, "x86_64", "fauxware"), auto_load_libs=False)
|
|
p.analyses.CFGFast()
|
|
main = p.kb.functions["main"]
|
|
sp = p.arch.sp_offset
|
|
regs = {sp}
|
|
if use_bp:
|
|
bp = p.arch.bp_offset
|
|
regs.add(bp)
|
|
sptracker = p.analyses.StackPointerTracker(main, regs, track_memory=track_mem)
|
|
sp_result = sptracker.offset_after(0x4007D4, sp)
|
|
if use_bp:
|
|
bp_result = sptracker.offset_after(0x4007D4, bp)
|
|
return sp_result, bp_result
|
|
return sp_result
|
|
|
|
|
|
def init_tracker(p, func_addr: str | int, track_mem, cross_insn_opt: bool = True):
|
|
p.analyses.CFGFast()
|
|
main = p.kb.functions[func_addr]
|
|
sp = p.arch.sp_offset
|
|
regs = {sp}
|
|
sptracker = p.analyses.StackPointerTracker(main, regs, track_memory=track_mem, cross_insn_opt=cross_insn_opt)
|
|
return sptracker, sp
|
|
|
|
|
|
class TestStackPointerTracker(unittest.TestCase):
|
|
def test_stack_pointer_tracker(self):
|
|
sp_result, bp_result = run_tracker(track_mem=True, use_bp=True)
|
|
assert sp_result == 8
|
|
assert bp_result == 0
|
|
|
|
def test_stack_pointer_tracker_no_mem(self):
|
|
sp_result, bp_result = run_tracker(track_mem=False, use_bp=True)
|
|
assert sp_result == 8
|
|
assert bp_result is None
|
|
|
|
def test_stack_pointer_tracker_just_sp(self):
|
|
sp_result = run_tracker(track_mem=False, use_bp=False)
|
|
assert sp_result is None
|
|
|
|
def test_stack_pointer_tracker_offset_block(self):
|
|
p = angr.Project(os.path.join(test_location, "x86_64", "fauxware"), auto_load_libs=False)
|
|
sptracker, sp = init_tracker(p, "main", track_mem=False)
|
|
sp_result = sptracker.offset_after_block(0x40071D, sp)
|
|
assert sp_result is not None
|
|
sp_result = sptracker.offset_after_block(0x400700, sp)
|
|
assert sp_result is None
|
|
sp_result = sptracker.offset_before_block(0x40071D, sp)
|
|
assert sp_result is not None
|
|
sp_result = sptracker.offset_before_block(0x400700, sp)
|
|
assert sp_result is None
|
|
|
|
def test_stack_pointer_tracker_offset_mask(self):
|
|
# SPTracker should treat 0xfffffff8 as a bitmask
|
|
proj = angr.Project(
|
|
os.path.join(
|
|
test_location, "i386", "windows", "39ca9900b5a1aaff6a218a56884f8c235263e3eb4e64c325b357fb028295f0a5"
|
|
),
|
|
auto_load_libs=False,
|
|
)
|
|
sptracker, sp = init_tracker(proj, 0x401F3E, track_mem=False, cross_insn_opt=False)
|
|
off_0 = sptracker.offset_after(0x401F41, sp)
|
|
off_1 = sptracker.offset_before(0x401F47, sp)
|
|
assert off_0 is not None
|
|
print(off_1 - off_0)
|
|
assert off_1 - off_0 == -0xC
|
|
|
|
|
|
if __name__ == "__main__":
|
|
logging.getLogger("angr.analyses.stack_pointer_tracker").setLevel(logging.INFO)
|
|
unittest.main()
|