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