cea82573bb
The GreenDragon CI bots are currently passing because the installed Xcode is a bit old, and doesn't have the watchpoint handling bug that was fixed April with this test being added. But on other CI running newer Xcode debugservers, this test will fail. Skip this test if we're using an out of tree debugserver.
98 lines
3.6 KiB
Python
98 lines
3.6 KiB
Python
"""
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Watch contiguous memory regions with separate watchpoints, check that lldb
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correctly detect which watchpoint was hit for each one.
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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 ConsecutiveWatchpointsTestCase(TestBase):
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NO_DEBUG_INFO_TESTCASE = True
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def continue_and_report_stop_reason(self, process, iter_str):
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process.Continue()
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self.assertIn(
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process.GetState(), [lldb.eStateStopped, lldb.eStateExited], iter_str
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)
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thread = process.GetSelectedThread()
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return thread.GetStopReason()
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# debugserver only gained the ability to watch larger regions
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# with this patch.
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@skipIfOutOfTreeDebugserver
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def test_consecutive_watchpoints(self):
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"""Test watchpoint that covers a large region of memory."""
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self.build()
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self.main_source_file = lldb.SBFileSpec("main.c")
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(target, process, thread, bkpt) = lldbutil.run_to_source_breakpoint(
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self, "break here", self.main_source_file
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)
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frame = thread.GetFrameAtIndex(0)
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field2_wp = (
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frame.locals["var"][0]
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.GetChildMemberWithName("field2")
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.Watch(True, False, True)
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)
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field3_wp = (
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frame.locals["var"][0]
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.GetChildMemberWithName("field3")
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.Watch(True, False, True)
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)
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field4_wp = (
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frame.locals["var"][0]
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.GetChildMemberWithName("field4")
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.Watch(True, False, True)
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)
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field5_wp = (
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frame.locals["var"][0]
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.GetChildMemberWithName("field5")
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.Watch(True, False, True)
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)
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# Require that the first two watchpoints
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# are set -- hopefully every machine running
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# the testsuite can support two watchpoints.
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self.assertTrue(field2_wp.IsValid())
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self.assertTrue(field3_wp.IsValid())
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reason = self.continue_and_report_stop_reason(process, "continue to field2 wp")
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self.assertEqual(reason, lldb.eStopReasonWatchpoint)
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stop_reason_watchpoint_id = (
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process.GetSelectedThread().GetStopReasonDataAtIndex(0)
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)
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self.assertEqual(stop_reason_watchpoint_id, field2_wp.GetID())
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reason = self.continue_and_report_stop_reason(process, "continue to field3 wp")
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self.assertEqual(reason, lldb.eStopReasonWatchpoint)
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stop_reason_watchpoint_id = (
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process.GetSelectedThread().GetStopReasonDataAtIndex(0)
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)
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self.assertEqual(stop_reason_watchpoint_id, field3_wp.GetID())
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# If we were able to set the second two watchpoints,
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# check that they are hit. Some CI bots can only
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# create two watchpoints.
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if field4_wp.IsValid() and field5_wp.IsValid():
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reason = self.continue_and_report_stop_reason(
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process, "continue to field4 wp"
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)
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self.assertEqual(reason, lldb.eStopReasonWatchpoint)
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stop_reason_watchpoint_id = (
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process.GetSelectedThread().GetStopReasonDataAtIndex(0)
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)
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self.assertEqual(stop_reason_watchpoint_id, field4_wp.GetID())
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reason = self.continue_and_report_stop_reason(
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process, "continue to field5 wp"
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)
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self.assertEqual(reason, lldb.eStopReasonWatchpoint)
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stop_reason_watchpoint_id = (
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process.GetSelectedThread().GetStopReasonDataAtIndex(0)
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)
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self.assertEqual(stop_reason_watchpoint_id, field5_wp.GetID())
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