forked from OSchip/llvm-project
93 lines
3.4 KiB
Python
93 lines
3.4 KiB
Python
"""
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Use lldb Python SBWatchpoint API to set the ignore count.
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"""
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import os, time
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import re
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import unittest2
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import lldb, lldbutil
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from lldbtest import *
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class WatchpointIgnoreCountTestCase(TestBase):
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mydir = TestBase.compute_mydir(__file__)
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def setUp(self):
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# Call super's setUp().
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TestBase.setUp(self)
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# Our simple source filename.
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self.source = 'main.c'
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# Find the line number to break inside main().
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self.line = line_number(self.source, '// Set break point at this line.')
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@python_api_test
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@expectedFailureAndroid(archs=['arm', 'aarch64']) # Watchpoints not supported
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@expectedFailureWindows("llvm.org/pr24446") # WINDOWS XFAIL TRIAGE - Watchpoints not supported on Windows
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def test_set_watch_ignore_count(self):
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"""Test SBWatchpoint.SetIgnoreCount() API."""
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self.build()
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exe = os.path.join(os.getcwd(), "a.out")
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# Create a target by the debugger.
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target = self.dbg.CreateTarget(exe)
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self.assertTrue(target, VALID_TARGET)
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# Create a breakpoint on main.c in order to set our watchpoint later.
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breakpoint = target.BreakpointCreateByLocation(self.source, self.line)
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self.assertTrue(breakpoint and
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breakpoint.GetNumLocations() == 1,
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VALID_BREAKPOINT)
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# Now launch the process, and do not stop at the entry point.
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process = target.LaunchSimple (None, None, self.get_process_working_directory())
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# We should be stopped due to the breakpoint. Get frame #0.
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process = target.GetProcess()
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self.assertTrue(process.GetState() == lldb.eStateStopped,
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PROCESS_STOPPED)
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thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonBreakpoint)
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frame0 = thread.GetFrameAtIndex(0)
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# Watch 'global' for read and write.
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value = frame0.FindValue('global', lldb.eValueTypeVariableGlobal)
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error = lldb.SBError();
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watchpoint = value.Watch(True, True, True, error)
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self.assertTrue(value and watchpoint,
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"Successfully found the variable and set a watchpoint")
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self.DebugSBValue(value)
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# Hide stdout if not running with '-t' option.
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if not self.TraceOn():
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self.HideStdout()
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# There should be only 1 watchpoint location under the target.
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self.assertTrue(target.GetNumWatchpoints() == 1)
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watchpoint = target.GetWatchpointAtIndex(0)
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self.assertTrue(watchpoint.IsEnabled())
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self.assertTrue(watchpoint.GetIgnoreCount() == 0)
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watch_id = watchpoint.GetID()
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self.assertTrue(watch_id != 0)
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print watchpoint
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# Now immediately set the ignore count to 2. When we continue, expect the
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# inferior to run to its completion without stopping due to watchpoint.
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watchpoint.SetIgnoreCount(2)
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print watchpoint
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process.Continue()
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# At this point, the inferior process should have exited.
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self.assertTrue(process.GetState() == lldb.eStateExited, PROCESS_EXITED)
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# Verify some vital statistics.
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self.assertTrue(watchpoint)
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self.assertTrue(watchpoint.GetWatchSize() == 4)
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self.assertTrue(watchpoint.GetHitCount() == 2)
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print watchpoint
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if __name__ == '__main__':
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import atexit
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lldb.SBDebugger.Initialize()
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atexit.register(lambda: lldb.SBDebugger.Terminate())
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unittest2.main()
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