1e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham""" 2e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim InghamTest some SBValue APIs. 3e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham""" 4e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham 5e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Inghamimport os, time 6e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Inghamimport re 7e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Inghamimport unittest2 8e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Inghamimport lldb, lldbutil 9e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Inghamfrom lldbtest import * 10e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham 11e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Inghamclass ChangeValueAPITestCase(TestBase): 12e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham 13e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham mydir = os.path.join("python_api", "value", "change_values") 14e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham 15e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin") 16e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham @python_api_test 1721b1984e161b0cadee331d32bfd721eccfdf4b1fJohnny Chen @dsym_test 18e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham def test_change_value_with_dsym(self): 19e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham """Exercise the SBValue::SetValueFromCString API.""" 20e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham d = {'EXE': self.exe_name} 21e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.buildDsym(dictionary=d) 22e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.setTearDownCleanup(dictionary=d) 23e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.change_value_api(self.exe_name) 24e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham 25e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham @python_api_test 2621b1984e161b0cadee331d32bfd721eccfdf4b1fJohnny Chen @dwarf_test 27e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham def test_change_value_with_dwarf(self): 28e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham """Exercise the SBValue::SetValueFromCString API.""" 29e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham d = {'EXE': self.exe_name} 30e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.buildDwarf(dictionary=d) 31e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.setTearDownCleanup(dictionary=d) 32e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.change_value_api(self.exe_name) 33e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham 34e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham def setUp(self): 35e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham # Call super's setUp(). 36e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham TestBase.setUp(self) 37e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham # We'll use the test method name as the exe_name. 38e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.exe_name = self.testMethodName 39e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham # Find the line number to of function 'c'. 40e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.line = line_number('main.c', '// Stop here and set values') 41bc8cdff66264ae984e60f34c640abc2e60bd2d5dMatt Kopec self.check_line = line_number('main.c', '// Stop here and check values') 42e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.end_line = line_number ('main.c', '// Set a breakpoint here at the end') 43e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham 446bc4dcdfbcdfa455299d2123011b82a77351ee72Daniel Malea @skipIfGcc # llvm.org/pr15039: If GCC is the test compiler, stdout is not available via lldb.SBProcess.GetSTDOUT() 45e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham def change_value_api(self, exe_name): 46e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham """Exercise some SBValue APIs.""" 47e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham exe = os.path.join(os.getcwd(), exe_name) 48e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham 49e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham # Create a target by the debugger. 50e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham target = self.dbg.CreateTarget(exe) 51e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.assertTrue(target, VALID_TARGET) 52e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham 53e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham # Create the breakpoint inside function 'main'. 54e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham breakpoint = target.BreakpointCreateByLocation('main.c', self.line) 55e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.assertTrue(breakpoint, VALID_BREAKPOINT) 56e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham 57bc8cdff66264ae984e60f34c640abc2e60bd2d5dMatt Kopec # Create the breakpoint inside the function 'main' 58bc8cdff66264ae984e60f34c640abc2e60bd2d5dMatt Kopec check_breakpoint = target.BreakpointCreateByLocation('main.c', self.check_line) 59bc8cdff66264ae984e60f34c640abc2e60bd2d5dMatt Kopec self.assertTrue(check_breakpoint, VALID_BREAKPOINT) 60bc8cdff66264ae984e60f34c640abc2e60bd2d5dMatt Kopec 61e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham # Create the breakpoint inside function 'main'. 62e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham end_breakpoint = target.BreakpointCreateByLocation('main.c', self.end_line) 63e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.assertTrue(end_breakpoint, VALID_BREAKPOINT) 64e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham 65e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham # Now launch the process, and do not stop at entry point. 66e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham process = target.LaunchSimple(None, None, os.getcwd()) 67e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.assertTrue(process, PROCESS_IS_VALID) 68e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham 69e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham # Get Frame #0. 70e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.assertTrue(process.GetState() == lldb.eStateStopped) 71e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonBreakpoint) 72166b89f089d6bec5bb9dd40470a4dc951ffc9daaGreg Clayton self.assertTrue(thread.IsValid(), "There should be a thread stopped due to breakpoint condition") 73e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham frame0 = thread.GetFrameAtIndex(0) 74e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.assertTrue (frame0.IsValid(), "Got a valid frame.") 75e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham 76e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham # Get the val variable and change it: 77e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham error = lldb.SBError() 78e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham 79e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham val_value = frame0.FindVariable ("val") 80e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.assertTrue (val_value.IsValid(), "Got the SBValue for val") 81e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham actual_value = val_value.GetValueAsSigned (error, 0); 82e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.assertTrue (error.Success(), "Got a value from val") 83e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.assertTrue (actual_value == 100, "Got the right value from val") 84e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham 85e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham result = val_value.SetValueFromCString ("12345") 86e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.assertTrue (result, "Setting val returned True.") 87e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham actual_value = val_value.GetValueAsSigned (error, 0); 88e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.assertTrue (error.Success(), "Got a changed value from val") 89e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.assertTrue (actual_value == 12345, "Got the right changed value from val") 90e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham 91e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham # Now check that we can set a structure element: 92e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham 93e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham mine_value = frame0.FindVariable ("mine") 94e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.assertTrue (mine_value.IsValid(), "Got the SBValue for mine") 95e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham 96e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham mine_second_value = mine_value.GetChildMemberWithName ("second_val") 97e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.assertTrue (mine_second_value.IsValid(), "Got second_val from mine") 98e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham actual_value = mine_second_value.GetValueAsUnsigned (error, 0) 99e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.assertTrue (error.Success(), "Got an unsigned value for second_val") 100e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.assertTrue (actual_value == 5555) 101e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham 102e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham result = mine_second_value.SetValueFromCString ("98765") 103e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.assertTrue (result, "Success setting mine.second_value.") 104e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham actual_value = mine_second_value.GetValueAsSigned (error, 0); 105e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.assertTrue (error.Success(), "Got a changed value from mine.second_val") 106e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.assertTrue (actual_value == 98765, "Got the right changed value from mine.second_val") 107e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham 108e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham # Next do the same thing with the pointer version. 109e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham ptr_value = frame0.FindVariable ("ptr") 110e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.assertTrue (ptr_value.IsValid(), "Got the SBValue for ptr") 111e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham 112e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham ptr_second_value = ptr_value.GetChildMemberWithName ("second_val") 113e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.assertTrue (ptr_second_value.IsValid(), "Got second_val from ptr") 114e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham actual_value = ptr_second_value.GetValueAsUnsigned (error, 0) 115e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.assertTrue (error.Success(), "Got an unsigned value for ptr->second_val") 116e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.assertTrue (actual_value == 6666) 117e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham 118e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham result = ptr_second_value.SetValueFromCString ("98765") 119e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.assertTrue (result, "Success setting ptr->second_value.") 120e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham actual_value = ptr_second_value.GetValueAsSigned (error, 0); 121e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.assertTrue (error.Success(), "Got a changed value from ptr->second_val") 122e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.assertTrue (actual_value == 98765, "Got the right changed value from ptr->second_val") 123e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham 124bc8cdff66264ae984e60f34c640abc2e60bd2d5dMatt Kopec # gcc may set multiple locations for breakpoint 125bc8cdff66264ae984e60f34c640abc2e60bd2d5dMatt Kopec breakpoint.SetEnabled(False) 126bc8cdff66264ae984e60f34c640abc2e60bd2d5dMatt Kopec 127bc8cdff66264ae984e60f34c640abc2e60bd2d5dMatt Kopec # Now continue, grab the stdout and make sure we changed the real values as well... 128bc8cdff66264ae984e60f34c640abc2e60bd2d5dMatt Kopec process.Continue(); 129bc8cdff66264ae984e60f34c640abc2e60bd2d5dMatt Kopec 130bc8cdff66264ae984e60f34c640abc2e60bd2d5dMatt Kopec self.assertTrue(process.GetState() == lldb.eStateStopped) 131bc8cdff66264ae984e60f34c640abc2e60bd2d5dMatt Kopec thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonBreakpoint) 132166b89f089d6bec5bb9dd40470a4dc951ffc9daaGreg Clayton self.assertTrue(thread.IsValid(), "There should be a thread stopped due to breakpoint condition") 133bc8cdff66264ae984e60f34c640abc2e60bd2d5dMatt Kopec 134e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham expected_value = "Val - 12345 Mine - 55, 98765, 55555555. Ptr - 66, 98765, 66666666" 135e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham stdout = process.GetSTDOUT(1000) 136e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.assertTrue (expected_value in stdout, "STDOUT showed changed values.") 137e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham 138e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham # Finally, change the stack pointer to 0, and we should not make it to our end breakpoint. 139e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham frame0 = thread.GetFrameAtIndex(0) 140e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.assertTrue (frame0.IsValid(), "Second time: got a valid frame.") 141e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham sp_value = frame0.FindValue ("sp", lldb.eValueTypeRegister); 142e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.assertTrue (sp_value.IsValid(), "Got a stack pointer value") 143e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham result = sp_value.SetValueFromCString("1") 144e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.assertTrue (result, "Setting sp returned true.") 1454d308400ca081b3d72fe55ced1178bd6dad4d9b8Jim Ingham actual_value = sp_value.GetValueAsUnsigned (error, 0) 1464d308400ca081b3d72fe55ced1178bd6dad4d9b8Jim Ingham self.assertTrue (error.Success(), "Got a changed value for sp") 1474d308400ca081b3d72fe55ced1178bd6dad4d9b8Jim Ingham self.assertTrue (actual_value == 1, "Got the right changed value for sp.") 148e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham 1499fd2e38a1fa7f5cbbf70de0e2de35f72d77aced5Johnny Chen # Boundary condition test the SBValue.CreateValueFromExpression() API. 1509fd2e38a1fa7f5cbbf70de0e2de35f72d77aced5Johnny Chen # LLDB should not crash! 1519fd2e38a1fa7f5cbbf70de0e2de35f72d77aced5Johnny Chen nosuchval = mine_value.CreateValueFromExpression(None, None) 1529fd2e38a1fa7f5cbbf70de0e2de35f72d77aced5Johnny Chen 153e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham process.Continue() 154e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham 155e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.assertTrue(process.GetState() == lldb.eStateStopped) 156e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonBreakpoint) 157e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham self.assertTrue(thread == None, "We should not have managed to hit our second breakpoint with sp == 1") 158e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham 159e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham process.Kill() 160e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham 161e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Inghamif __name__ == '__main__': 162e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham import atexit 163e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham lldb.SBDebugger.Initialize() 164e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham atexit.register(lambda: lldb.SBDebugger.Terminate()) 165e36a35c2a1cf58af36b96b49aaddbf72485271b4Jim Ingham unittest2.main() 166