""" Test watchpoint list, enable, disable, and delete commands. """ import lldb from lldbsuite.test.decorators import * from lldbsuite.test.lldbtest import * from lldbsuite.test import lldbutil class WatchpointCommandsTestCase(TestBase): mydir = TestBase.compute_mydir(__file__) NO_DEBUG_INFO_TESTCASE = True 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.') self.line2 = line_number( self.source, '// Set 2nd break point for disable_then_enable test case.') # And the watchpoint variable declaration line number. self.decl = line_number(self.source, '// Watchpoint variable declaration.') # Build dictionary to have unique executable names for each test # method. self.exe_name = self.testMethodName self.d = {'C_SOURCES': self.source, 'EXE': self.exe_name} # Read-write watchpoints not supported on SystemZ @expectedFailureAll(archs=['s390x']) def test_rw_watchpoint(self): """Test read_write watchpoint and expect to stop two times.""" self.build(dictionary=self.d) self.setTearDownCleanup(dictionary=self.d) exe = self.getBuildArtifact(self.exe_name) self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET) # Add a breakpoint to set a watchpoint when stopped on the breakpoint. lldbutil.run_break_set_by_file_and_line( self, None, self.line, num_expected_locations=1) # Run the program. self.runCmd("run", RUN_SUCCEEDED) # We should be stopped again due to the breakpoint. # The stop reason of the thread should be breakpoint. self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT, substrs=['stopped', 'stop reason = breakpoint']) # Now let's set a read_write-type watchpoint for 'global'. # There should be two watchpoint hits (see main.c). self.expect( "watchpoint set variable -w read_write global", WATCHPOINT_CREATED, substrs=[ 'Watchpoint created', 'size = 4', 'type = rw', '%s:%d' % (self.source, self.decl)]) # Use the '-v' option to do verbose listing of the watchpoint. # The hit count should be 0 initially. self.expect("watchpoint list -v", substrs=['Number of supported hardware watchpoints:', 'hit_count = 0']) self.runCmd("process continue") # We should be stopped again due to the watchpoint (read_write type). # The stop reason of the thread should be watchpoint. self.expect("thread backtrace", STOPPED_DUE_TO_WATCHPOINT, substrs=['stop reason = watchpoint']) self.runCmd("process continue") # We should be stopped again due to the watchpoint (read_write type). # The stop reason of the thread should be watchpoint. self.expect("thread backtrace", STOPPED_DUE_TO_WATCHPOINT, substrs=['stop reason = watchpoint']) self.runCmd("process continue") # There should be no more watchpoint hit and the process status should # be 'exited'. self.expect("process status", substrs=['exited']) # Use the '-v' option to do verbose listing of the watchpoint. # The hit count should now be 2. self.expect("watchpoint list -v", substrs=['hit_count = 2']) # Read-write watchpoints not supported on SystemZ @expectedFailureAll(archs=['s390x']) def test_rw_watchpoint_delete(self): """Test delete watchpoint and expect not to stop for watchpoint.""" self.build() lldbutil.run_to_line_breakpoint(self, lldb.SBFileSpec(self.source), self.line) # Now let's set a read_write-type watchpoint for 'global'. # There should be two watchpoint hits (see main.c). self.expect( "watchpoint set variable -w read_write global", WATCHPOINT_CREATED, substrs=[ 'Watchpoint created', 'size = 4', 'type = rw', '%s:%d' % (self.source, self.decl)]) # Delete the watchpoint immediately, but set auto-confirm to true # first. self.runCmd("settings set auto-confirm true") self.expect("watchpoint delete", substrs=['All watchpoints removed.']) # Restore the original setting of auto-confirm. self.runCmd("settings clear auto-confirm") target = self.dbg.GetSelectedTarget() self.assertTrue(target and not target.GetNumWatchpoints()) # Now let's set a read_write-type watchpoint for 'global'. # There should be two watchpoint hits (see main.c). self.expect( "watchpoint set variable -w read_write global", WATCHPOINT_CREATED, substrs=[ 'Watchpoint created', 'size = 4', 'type = rw', '%s:%d' % (self.source, self.decl)]) # Delete the watchpoint immediately using the force option. self.expect("watchpoint delete --force", substrs=['All watchpoints removed.']) self.assertTrue(target and not target.GetNumWatchpoints()) self.runCmd("process continue") # There should be no more watchpoint hit and the process status should # be 'exited'. self.expect("process status", substrs=['exited']) # Read-write watchpoints not supported on SystemZ @expectedFailureAll(archs=['s390x']) def test_rw_watchpoint_set_ignore_count(self): """Test watchpoint ignore count and expect to not to stop at all.""" self.build(dictionary=self.d) self.setTearDownCleanup(dictionary=self.d) exe = self.getBuildArtifact(self.exe_name) self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET) # Add a breakpoint to set a watchpoint when stopped on the breakpoint. lldbutil.run_break_set_by_file_and_line( self, None, self.line, num_expected_locations=1) # Run the program. self.runCmd("run", RUN_SUCCEEDED) # We should be stopped again due to the breakpoint. # The stop reason of the thread should be breakpoint. self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT, substrs=['stopped', 'stop reason = breakpoint']) # Now let's set a read_write-type watchpoint for 'global'. # There should be two watchpoint hits (see main.c). self.expect( "watchpoint set variable -w read_write global", WATCHPOINT_CREATED, substrs=[ 'Watchpoint created', 'size = 4', 'type = rw', '%s:%d' % (self.source, self.decl)]) # Set the ignore count of the watchpoint immediately. self.expect("watchpoint ignore -i 2", substrs=['All watchpoints ignored.']) # Use the '-v' option to do verbose listing of the watchpoint. # Expect to find an ignore_count of 2. self.expect("watchpoint list -v", substrs=['hit_count = 0', 'ignore_count = 2']) self.runCmd("process continue") # There should be no more watchpoint hit and the process status should # be 'exited'. self.expect("process status", substrs=['exited']) # Use the '-v' option to do verbose listing of the watchpoint. # Expect to find a hit_count of 2 as well. self.expect("watchpoint list -v", substrs=['hit_count = 2', 'ignore_count = 2']) # Read-write watchpoints not supported on SystemZ @expectedFailureAll(archs=['s390x']) def test_rw_disable_after_first_stop(self): """Test read_write watchpoint but disable it after the first stop.""" self.build(dictionary=self.d) self.setTearDownCleanup(dictionary=self.d) exe = self.getBuildArtifact(self.exe_name) self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET) # Add a breakpoint to set a watchpoint when stopped on the breakpoint. lldbutil.run_break_set_by_file_and_line( self, None, self.line, num_expected_locations=1) # Run the program. self.runCmd("run", RUN_SUCCEEDED) # We should be stopped again due to the breakpoint. # The stop reason of the thread should be breakpoint. self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT, substrs=['stopped', 'stop reason = breakpoint']) # Now let's set a read_write-type watchpoint for 'global'. # There should be two watchpoint hits (see main.c). self.expect( "watchpoint set variable -w read_write global", WATCHPOINT_CREATED, substrs=[ 'Watchpoint created', 'size = 4', 'type = rw', '%s:%d' % (self.source, self.decl)]) # Use the '-v' option to do verbose listing of the watchpoint. # The hit count should be 0 initially. self.expect("watchpoint list -v", substrs=['state = enabled', 'hit_count = 0']) self.runCmd("process continue") # We should be stopped again due to the watchpoint (read_write type). # The stop reason of the thread should be watchpoint. self.expect("thread backtrace", STOPPED_DUE_TO_WATCHPOINT, substrs=['stop reason = watchpoint']) # Before continuing, we'll disable the watchpoint, which means we won't # stop again after this. self.runCmd("watchpoint disable") self.expect("watchpoint list -v", substrs=['state = disabled', 'hit_count = 1']) self.runCmd("process continue") # There should be no more watchpoint hit and the process status should # be 'exited'. self.expect("process status", substrs=['exited']) # Use the '-v' option to do verbose listing of the watchpoint. # The hit count should be 1. self.expect("watchpoint list -v", substrs=['hit_count = 1']) # Read-write watchpoints not supported on SystemZ @expectedFailureAll(archs=['s390x']) def test_rw_disable_then_enable(self): """Test read_write watchpoint, disable initially, then enable it.""" self.build(dictionary=self.d) self.setTearDownCleanup(dictionary=self.d) exe = self.getBuildArtifact(self.exe_name) self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET) # Add a breakpoint to set a watchpoint when stopped on the breakpoint. lldbutil.run_break_set_by_file_and_line( self, None, self.line, num_expected_locations=1) lldbutil.run_break_set_by_file_and_line( self, None, self.line2, num_expected_locations=1) # Run the program. self.runCmd("run", RUN_SUCCEEDED) # We should be stopped again due to the breakpoint. # The stop reason of the thread should be breakpoint. self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT, substrs=['stopped', 'stop reason = breakpoint']) # Now let's set a read_write-type watchpoint for 'global'. # There should be two watchpoint hits (see main.c). self.expect( "watchpoint set variable -w read_write global", WATCHPOINT_CREATED, substrs=[ 'Watchpoint created', 'size = 4', 'type = rw', '%s:%d' % (self.source, self.decl)]) # Immediately, we disable the watchpoint. We won't be stopping due to a # watchpoint after this. self.runCmd("watchpoint disable") # Use the '-v' option to do verbose listing of the watchpoint. # The hit count should be 0 initially. self.expect("watchpoint list -v", substrs=['state = disabled', 'hit_count = 0']) self.runCmd("process continue") # We should be stopped again due to the breakpoint. self.expect("thread backtrace", STOPPED_DUE_TO_BREAKPOINT, substrs=['stop reason = breakpoint']) # Before continuing, we'll enable the watchpoint, which means we will # stop again after this. self.runCmd("watchpoint enable") self.expect("watchpoint list -v", substrs=['state = enabled', 'hit_count = 0']) self.runCmd("process continue") # We should be stopped again due to the watchpoint (read_write type). # The stop reason of the thread should be watchpoint. self.expect("thread backtrace", STOPPED_DUE_TO_WATCHPOINT, substrs=['stop reason = watchpoint']) self.runCmd("process continue") # There should be no more watchpoint hit and the process status should # be 'exited'. self.expect("process status", substrs=['exited']) # Use the '-v' option to do verbose listing of the watchpoint. # The hit count should be 1. self.expect("watchpoint list -v", substrs=['hit_count = 1'])