c8764f0c65
Follow-up fix discussed here: https://github.com/llvm/llvm-project/pull/129578#issuecomment-2695838042 --------- Co-authored-by: Jim Ingham <jingham@apple.com>
112 lines
4.4 KiB
Python
112 lines
4.4 KiB
Python
"""
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Test stop hook functionality
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"""
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import lldb
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import lldbsuite.test.lldbutil as lldbutil
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from lldbsuite.test.lldbtest import *
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class TestStopHooks(TestBase):
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NO_DEBUG_INFO_TESTCASE = True
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def setUp(self):
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TestBase.setUp(self)
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self.build()
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self.main_source_file = lldb.SBFileSpec("main.c")
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full_path = os.path.join(self.getSourceDir(), "main.c")
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self.main_start_line = line_number(full_path, "main()")
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def test_stop_hooks_step_out(self):
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"""Test that stop hooks fire on step-out."""
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self.step_out_test()
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def test_stop_hooks_after_expr(self):
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"""Test that a stop hook fires when hitting a breakpoint that
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runs an expression"""
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self.after_expr_test()
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def test_stop_hooks_before_and_after_creation(self):
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"""Test that if we add stop hooks in the dummy target,
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they aren't overridden by the ones set directly in the target."""
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self.before_and_after_target()
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def step_out_test(self):
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(target, process, thread, bkpt) = lldbutil.run_to_source_breakpoint(
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self, "Set a breakpoint here", self.main_source_file
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)
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interp = self.dbg.GetCommandInterpreter()
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result = lldb.SBCommandReturnObject()
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# Add two stop hooks here, one to auto-continue and one not. Make sure
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# that we still stop in that case.
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interp.HandleCommand("target stop-hook add -G false -o 'expr g_var++'", result)
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self.assertTrue(result.Succeeded(), "Set the target stop hook")
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interp.HandleCommand("target stop-hook add -G true -o 'expr g_var++'", result)
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self.assertTrue(result.Succeeded(), "Set the second target stop hook")
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thread.StepOut()
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var = target.FindFirstGlobalVariable("g_var")
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self.assertTrue(var.IsValid())
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self.assertEqual(var.GetValueAsUnsigned(), 2, "Updated g_var")
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def after_expr_test(self):
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interp = self.dbg.GetCommandInterpreter()
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result = lldb.SBCommandReturnObject()
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interp.HandleCommand("target stop-hook add -o 'expr g_var++'", result)
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self.assertTrue(result.Succeeded(), "Set the target stop hook")
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(target, process, thread, first_bkpt) = lldbutil.run_to_source_breakpoint(
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self, "Set a breakpoint here", self.main_source_file
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)
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var = target.FindFirstGlobalVariable("g_var")
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self.assertTrue(var.IsValid())
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self.assertEqual(var.GetValueAsUnsigned(), 1, "Updated g_var")
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bkpt = target.BreakpointCreateBySourceRegex(
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"Continue to here", self.main_source_file
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)
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self.assertNotEqual(bkpt.GetNumLocations(), 0, "Set the second breakpoint")
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commands = lldb.SBStringList()
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commands.AppendString("expr increment_gvar()")
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bkpt.SetCommandLineCommands(commands)
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threads = lldbutil.continue_to_breakpoint(process, bkpt)
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self.assertEqual(len(threads), 1, "Hit my breakpoint")
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self.assertTrue(var.IsValid())
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self.assertEqual(var.GetValueAsUnsigned(), 3, "Updated g_var")
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# Make sure running an expression does NOT run the stop hook.
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# Our expression will increment it by one, but the stop shouldn't
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# have gotten it to 5.
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threads[0].frames[0].EvaluateExpression("increment_gvar()")
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self.assertTrue(var.IsValid())
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self.assertEqual(var.GetValueAsUnsigned(), 4, "Updated g_var")
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# Make sure a rerun doesn't upset the state we've set up:
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process.Kill()
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lldbutil.run_to_breakpoint_do_run(self, target, first_bkpt)
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var = target.FindFirstGlobalVariable("g_var")
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self.assertTrue(var.IsValid())
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self.assertEqual(var.GetValueAsUnsigned(), 1, "Updated g_var")
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def before_and_after_target(self):
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interp = self.dbg.GetCommandInterpreter()
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result = lldb.SBCommandReturnObject()
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interp.HandleCommand("target stop-hook add -o 'expr g_var++'", result)
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self.assertTrue(result.Succeeded(), "Set the target stop hook")
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(target, process, thread, first_bkpt) = lldbutil.run_to_source_breakpoint(
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self, "Set a breakpoint here", self.main_source_file
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)
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interp.HandleCommand("target stop-hook add -o 'thread backtrace'", result)
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self.assertTrue(result.Succeeded(), "Set the target stop hook")
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self.expect(
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"target stop-hook list", substrs=["expr g_var++", "thread backtrace"]
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)
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