767496d19c
Include macosx in the list of operating systems for which this is broken on arm64. rdar://34027183
120 lines
4.8 KiB
Python
120 lines
4.8 KiB
Python
"""Test stepping over watchpoints."""
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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 TestStepOverWatchpoint(TestBase):
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mydir = TestBase.compute_mydir(__file__)
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NO_DEBUG_INFO_TESTCASE = True
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@expectedFailureAll(
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oslist=["freebsd", "linux"],
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archs=[
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'aarch64',
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'arm'],
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bugnumber="llvm.org/pr26031")
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# Read-write watchpoints not supported on SystemZ
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@expectedFailureAll(archs=['s390x'])
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@expectedFailureAll(
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oslist=["ios", "watchos", "tvos", "bridgeos", "macosx"],
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archs=['aarch64', 'arm'],
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bugnumber="<rdar://problem/34027183>")
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@add_test_categories(["basic_process"])
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def test(self):
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"""Test stepping over watchpoints."""
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self.build()
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target = self.createTestTarget()
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lldbutil.run_break_set_by_symbol(self, 'main')
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process = target.LaunchSimple(None, None,
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self.get_process_working_directory())
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self.assertTrue(process.IsValid(), PROCESS_IS_VALID)
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self.assertEquals(process.GetState(), lldb.eStateStopped,
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PROCESS_STOPPED)
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thread = lldbutil.get_stopped_thread(process,
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lldb.eStopReasonBreakpoint)
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self.assertTrue(thread.IsValid(), "Failed to get thread.")
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frame = thread.GetFrameAtIndex(0)
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self.assertTrue(frame.IsValid(), "Failed to get frame.")
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read_value = frame.FindValue('g_watch_me_read',
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lldb.eValueTypeVariableGlobal)
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self.assertTrue(read_value.IsValid(), "Failed to find read value.")
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error = lldb.SBError()
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# resolve_location=True, read=True, write=False
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read_watchpoint = read_value.Watch(True, True, False, error)
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self.assertTrue(error.Success(),
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"Error while setting watchpoint: %s" %
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error.GetCString())
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self.assertTrue(read_watchpoint, "Failed to set read watchpoint.")
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thread.StepOver()
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self.assertEquals(thread.GetStopReason(), lldb.eStopReasonWatchpoint,
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STOPPED_DUE_TO_WATCHPOINT)
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self.assertEquals(thread.GetStopDescription(20), 'watchpoint 1')
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process.Continue()
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self.assertEquals(process.GetState(), lldb.eStateStopped,
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PROCESS_STOPPED)
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self.assertEquals(thread.GetStopDescription(20), 'step over')
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self.step_inst_for_watchpoint(1)
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write_value = frame.FindValue('g_watch_me_write',
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lldb.eValueTypeVariableGlobal)
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self.assertTrue(write_value, "Failed to find write value.")
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# Most of the MIPS boards provide only one H/W watchpoints, and S/W
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# watchpoints are not supported yet
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arch = self.getArchitecture()
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if re.match("^mips", arch) or re.match("powerpc64le", arch):
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self.runCmd("watchpoint delete 1")
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# resolve_location=True, read=False, write=True
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write_watchpoint = write_value.Watch(True, False, True, error)
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self.assertTrue(write_watchpoint, "Failed to set write watchpoint.")
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self.assertTrue(error.Success(),
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"Error while setting watchpoint: %s" %
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error.GetCString())
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thread.StepOver()
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self.assertEquals(thread.GetStopReason(), lldb.eStopReasonWatchpoint,
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STOPPED_DUE_TO_WATCHPOINT)
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self.assertEquals(thread.GetStopDescription(20), 'watchpoint 2')
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process.Continue()
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self.assertEquals(process.GetState(), lldb.eStateStopped,
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PROCESS_STOPPED)
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self.assertEquals(thread.GetStopDescription(20), 'step over')
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self.step_inst_for_watchpoint(2)
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def step_inst_for_watchpoint(self, wp_id):
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watchpoint_hit = False
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current_line = self.frame().GetLineEntry().GetLine()
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while self.frame().GetLineEntry().GetLine() == current_line:
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self.thread().StepInstruction(False) # step_over=False
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stop_reason = self.thread().GetStopReason()
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if stop_reason == lldb.eStopReasonWatchpoint:
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self.assertFalse(watchpoint_hit, "Watchpoint already hit.")
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expected_stop_desc = "watchpoint %d" % wp_id
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actual_stop_desc = self.thread().GetStopDescription(20)
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self.assertEquals(actual_stop_desc, expected_stop_desc,
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"Watchpoint ID didn't match.")
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watchpoint_hit = True
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else:
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self.assertEquals(stop_reason, lldb.eStopReasonPlanComplete,
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STOPPED_DUE_TO_STEP_IN)
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self.assertTrue(watchpoint_hit, "Watchpoint never hit.")
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