72 lines
2.3 KiB
Python
72 lines
2.3 KiB
Python
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"""
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Test that lldb can continue past a __builtin_debugtrap, but not a __builtin_trap
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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.decorators import *
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from lldbsuite.test.lldbtest import *
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class BuiltinDebugTrapTestCase(TestBase):
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NO_DEBUG_INFO_TESTCASE = True
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# Currently this depends on behavior in debugserver to
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# advance the pc past __builtin_trap instructions so that
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# continue works. Everyone is in agreement that this
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# should be moved up into lldb instead of depending on the
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# remote stub rewriting the pc values.
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@skipUnlessDarwin
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def test(self):
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self.build()
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(target, process, thread, bkpt) = lldbutil.run_to_source_breakpoint(
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self, "// Set a breakpoint here", lldb.SBFileSpec("main.cpp")
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)
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# Continue to __builtin_debugtrap()
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process.Continue()
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if self.TraceOn():
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self.runCmd("f")
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self.runCmd("bt")
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self.runCmd("ta v global")
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self.assertEqual(
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process.GetSelectedThread().GetStopReason(), lldb.eStopReasonException
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)
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list = target.FindGlobalVariables("global", 1, lldb.eMatchTypeNormal)
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self.assertEqual(list.GetSize(), 1)
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global_value = list.GetValueAtIndex(0)
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self.assertEqual(global_value.GetValueAsUnsigned(), 5)
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# Continue to the __builtin_trap() -- we should be able to
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# continue past __builtin_debugtrap.
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process.Continue()
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if self.TraceOn():
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self.runCmd("f")
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self.runCmd("bt")
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self.runCmd("ta v global")
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self.assertEqual(
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process.GetSelectedThread().GetStopReason(), lldb.eStopReasonException
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)
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# "global" is now 10.
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self.assertEqual(global_value.GetValueAsUnsigned(), 10)
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# We should be at the same point as before -- cannot advance
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# past a __builtin_trap().
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process.Continue()
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if self.TraceOn():
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self.runCmd("f")
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self.runCmd("bt")
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self.runCmd("ta v global")
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self.assertEqual(
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process.GetSelectedThread().GetStopReason(), lldb.eStopReasonException
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)
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# "global" is still 10.
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self.assertEqual(global_value.GetValueAsUnsigned(), 10)
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