| """ |
| Test embedded breakpoints, like `asm int 3;` in x86 or or `__debugbreak` on Windows. |
| """ |
| |
| from __future__ import print_function |
| |
| import os |
| import lldb |
| from lldbsuite.test.decorators import * |
| from lldbsuite.test.lldbtest import * |
| from lldbsuite.test import lldbutil |
| |
| |
| class DebugBreakTestCase(TestBase): |
| |
| mydir = TestBase.compute_mydir(__file__) |
| |
| @skipIf(archs=no_match(["i386", "i686", "x86_64"])) |
| @no_debug_info_test |
| def test_asm_int_3(self): |
| """Test that intrinsics like `__debugbreak();` and `asm {"int3"}` are treated like breakpoints.""" |
| self.build() |
| exe = self.getBuildArtifact("a.out") |
| |
| # Run the program. |
| target = self.dbg.CreateTarget(exe) |
| process = target.LaunchSimple( |
| None, None, self.get_process_working_directory()) |
| |
| # We've hit the first stop, so grab the frame. |
| self.assertEqual(process.GetState(), lldb.eStateStopped) |
| stop_reason = lldb.eStopReasonException if (lldbplatformutil.getPlatform( |
| ) == "windows" or lldbplatformutil.getPlatform() == "macosx") else lldb.eStopReasonSignal |
| thread = lldbutil.get_stopped_thread(process, stop_reason) |
| self.assertIsNotNone( |
| thread, "Unable to find thread stopped at the __debugbreak()") |
| frame = thread.GetFrameAtIndex(0) |
| |
| # We should be in funciton 'bar'. |
| self.assertTrue(frame.IsValid()) |
| function_name = frame.GetFunctionName() |
| self.assertTrue('bar' in function_name, |
| "Unexpected function name {}".format(function_name)) |
| |
| # We should be able to evaluate the parameter foo. |
| value = frame.EvaluateExpression('*foo') |
| self.assertEqual(value.GetValueAsSigned(), 42) |
| |
| # The counter should be 1 at the first stop and increase by 2 for each |
| # subsequent stop. |
| counter = 1 |
| while counter < 20: |
| value = frame.EvaluateExpression('count') |
| self.assertEqual(value.GetValueAsSigned(), counter) |
| counter += 2 |
| process.Continue() |
| |
| # The inferior should exit after the last iteration. |
| self.assertEqual(process.GetState(), lldb.eStateExited) |