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