def step_out_test(self, step_out_func): """Test single thread step out of a function.""" (self.inferior_target, self.inferior_process, thread, bkpt) = lldbutil.run_to_source_breakpoint(self, self.bkpt_string, lldb.SBFileSpec('main.cpp'), only_one_thread=False) # We hit the breakpoint on at least one thread. If we hit it on both threads # simultaneously, we can try the step out. Otherwise, suspend the thread # that hit the breakpoint, and continue till the second thread hits # the breakpoint: (breakpoint_threads, other_threads) = ([], []) lldbutil.sort_stopped_threads(self.inferior_process, breakpoint_threads=breakpoint_threads, other_threads=other_threads) if len(breakpoint_threads) == 1: success = thread.Suspend() self.assertTrue(success, "Couldn't suspend a thread") bkpt_threads = lldbutil.continue_to_breakpoint(bkpt) self.assertEqual(len(bkpt_threads), 1, "Second thread stopped") success = thread.Resume() self.assertTrue(success, "Couldn't resume a thread") self.step_out_thread = breakpoint_threads[0] # Step out of thread stopped at breakpoint step_out_func()
def step_out_test(self, step_out_func): """Test single thread step out of a function.""" exe = self.getBuildArtifact("a.out") self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET) # This should create a breakpoint in the main thread. lldbutil.run_break_set_by_file_and_line(self, "main.cpp", self.breakpoint, num_expected_locations=1) # The breakpoint list should show 1 location. self.expect( "breakpoint list -f", "Breakpoint location shown correctly", substrs=[ "1: file = 'main.cpp', line = %d, exact_match = 0, locations = 1" % self.breakpoint ]) # Run the program. self.runCmd("run", RUN_SUCCEEDED) # Get the target process self.inferior_target = self.dbg.GetSelectedTarget() self.inferior_process = self.inferior_target.GetProcess() # Get the number of threads, ensure we see all three. num_threads = self.inferior_process.GetNumThreads() self.assertEqual( num_threads, 3, 'Number of expected threads and actual threads do not match.') (breakpoint_threads, other_threads) = ([], []) lldbutil.sort_stopped_threads(self.inferior_process, breakpoint_threads=breakpoint_threads, other_threads=other_threads) while len(breakpoint_threads) < 2: self.runCmd("thread continue %s" % " ".join([str(x.GetIndexID()) for x in other_threads])) lldbutil.sort_stopped_threads( self.inferior_process, breakpoint_threads=breakpoint_threads, other_threads=other_threads) self.step_out_thread = breakpoint_threads[0] # Step out of thread stopped at breakpoint step_out_func() # Run to completion self.runCmd("continue") # At this point, the inferior process should have exited. self.assertTrue(self.inferior_process.GetState() == lldb.eStateExited, PROCESS_EXITED)
def step_out_test(self, step_out_func): """Test single thread step out of a function.""" exe = os.path.join(os.getcwd(), "a.out") self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET) # This should create a breakpoint in the main thread. lldbutil.run_break_set_by_file_and_line(self, "main.cpp", self.breakpoint, num_expected_locations=1) # The breakpoint list should show 1 location. self.expect( "breakpoint list -f", "Breakpoint location shown correctly", substrs=["1: file = 'main.cpp', line = %d, exact_match = 0, locations = 1" % self.breakpoint], ) # Run the program. self.runCmd("run", RUN_SUCCEEDED) # Get the target process self.inferior_target = self.dbg.GetSelectedTarget() self.inferior_process = self.inferior_target.GetProcess() # Get the number of threads, ensure we see all three. num_threads = self.inferior_process.GetNumThreads() self.assertEqual(num_threads, 3, "Number of expected threads and actual threads do not match.") (breakpoint_threads, other_threads) = ([], []) lldbutil.sort_stopped_threads( self.inferior_process, breakpoint_threads=breakpoint_threads, other_threads=other_threads ) while len(breakpoint_threads) < 2: self.runCmd("thread continue %s" % " ".join([str(x.GetIndexID()) for x in other_threads])) lldbutil.sort_stopped_threads( self.inferior_process, breakpoint_threads=breakpoint_threads, other_threads=other_threads ) self.step_out_thread = breakpoint_threads[0] # Step out of thread stopped at breakpoint step_out_func() # Run to completion self.runCmd("continue") # At this point, the inferior process should have exited. self.assertTrue(self.inferior_process.GetState() == lldb.eStateExited, PROCESS_EXITED)
def test_thread_backtrace_one_thread(self): self.build() (self.inferior_target, self.process, thread, bkpt) = lldbutil.run_to_source_breakpoint(self, self.bkpt_string, lldb.SBFileSpec('main.cpp'), only_one_thread=False) # We hit the breakpoint on at least one thread. If we hit it on both threads # simultaneously, we are ready to run our tests. Otherwise, suspend the thread # that hit the breakpoint, and continue till the second thread hits # the breakpoint: (breakpoint_threads, other_threads) = ([], []) lldbutil.sort_stopped_threads(self.process, breakpoint_threads=breakpoint_threads, other_threads=other_threads) self.assertGreater(len(breakpoint_threads), 0, "We hit at least one breakpoint thread") self.assertGreater(len(breakpoint_threads[0].frames), 2, "I can go up") thread_id = breakpoint_threads[0].idx name = breakpoint_threads[0].frame[1].name.split("(")[0] self.check_one_thread(thread_id, name)
def test_thread_backtrace_two_threads(self): """Test that repeat works even when backtracing on more than one thread.""" self.build() (self.inferior_target, self.process, thread, bkpt) = lldbutil.run_to_source_breakpoint(self, self.bkpt_string, lldb.SBFileSpec('main.cpp'), only_one_thread=False) # We hit the breakpoint on at least one thread. If we hit it on both threads # simultaneously, we are ready to run our tests. Otherwise, suspend the thread # that hit the breakpoint, and continue till the second thread hits # the breakpoint: (breakpoint_threads, other_threads) = ([], []) lldbutil.sort_stopped_threads(self.process, breakpoint_threads=breakpoint_threads, other_threads=other_threads) if len(breakpoint_threads) == 1: success = thread.Suspend() self.assertTrue(success, "Couldn't suspend a thread") breakpoint_threads = lldbutil.continue_to_breakpoint( self.process, bkpt) self.assertEqual(len(breakpoint_threads), 2, "Second thread stopped") # Figure out which thread is which: thread_id_1 = breakpoint_threads[0].idx self.assertGreater(len(breakpoint_threads[0].frames), 2, "I can go up") name_1 = breakpoint_threads[0].frame[1].name.split("(")[0] thread_id_2 = breakpoint_threads[1].idx self.assertGreater(len(breakpoint_threads[1].frames), 2, "I can go up") name_2 = breakpoint_threads[1].frame[1].name.split("(")[0] # Check that backtrace and repeat works on one thread, then works on the second # when we switch to it: self.check_one_thread(thread_id_1, name_1) self.check_one_thread(thread_id_2, name_2) # The output is looking right at this point, let's just do a couple more quick checks # to see we handle two threads and a start count: interp = self.dbg.GetCommandInterpreter() result = lldb.SBCommandReturnObject() interp.HandleCommand( "thread backtrace --count 10 --start 10 {0} {1}".format( thread_id_1, thread_id_2), result, True) self.assertTrue(result.Succeeded(), "command succeeded for two threads") result.Clear() interp.HandleCommand("", result, True) self.assertTrue(result.Succeeded(), "repeat command succeeded for two threads") result_str = result.GetOutput() self.check_two_threads(result_str, thread_id_1, name_1, thread_id_2, name_2, 23, 32) # Finally make sure the repeat repeats: result.Clear() interp.HandleCommand("", result, True) self.assertTrue(result.Succeeded(), "repeat command succeeded for two threads") result_str = result.GetOutput() self.check_two_threads(result_str, thread_id_1, name_1, thread_id_2, name_2, 13, 22)