diff options
Diffstat (limited to 'packages/Python/lldbsuite/test/functionalities/thread/step_out/TestThreadStepOut.py')
| -rw-r--r-- | packages/Python/lldbsuite/test/functionalities/thread/step_out/TestThreadStepOut.py | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/packages/Python/lldbsuite/test/functionalities/thread/step_out/TestThreadStepOut.py b/packages/Python/lldbsuite/test/functionalities/thread/step_out/TestThreadStepOut.py new file mode 100644 index 0000000..b2d966c --- /dev/null +++ b/packages/Python/lldbsuite/test/functionalities/thread/step_out/TestThreadStepOut.py @@ -0,0 +1,131 @@ +""" +Test stepping out from a function in a multi-threaded program. +""" + +from __future__ import print_function + + + +import os, time +import lldb +from lldbsuite.test.lldbtest import * +import lldbsuite.test.lldbutil as lldbutil + +class ThreadStepOutTestCase(TestBase): + + mydir = TestBase.compute_mydir(__file__) + + @skipIfLinux # Test occasionally times out on the Linux build bot + @expectedFailureLinux("llvm.org/pr23477") # Test occasionally times out on the Linux build bot + @expectedFailureFreeBSD("llvm.org/pr18066") # inferior does not exit + @expectedFailureWindows # Test crashes + def test_step_single_thread(self): + """Test thread step out on one thread via command interpreter. """ + self.build(dictionary=self.getBuildFlags()) + self.step_out_test(self.step_out_single_thread_with_cmd) + + @skipIfLinux # Test occasionally times out on the Linux build bot + @expectedFailureLinux("llvm.org/pr23477") # Test occasionally times out on the Linux build bot + @expectedFailureFreeBSD("llvm.org/pr19347") # 2nd thread stops at breakpoint + @expectedFailureWindows # Test crashes + def test_step_all_threads(self): + """Test thread step out on all threads via command interpreter. """ + self.build(dictionary=self.getBuildFlags()) + self.step_out_test(self.step_out_all_threads_with_cmd) + + @skipIfLinux # Test occasionally times out on the Linux build bot + @expectedFailureLinux("llvm.org/pr23477") # Test occasionally times out on the Linux build bot + @expectedFailureFreeBSD("llvm.org/pr19347") + @expectedFailureWindows("llvm.org/pr24681") + def test_python(self): + """Test thread step out on one thread via Python API (dwarf).""" + self.build(dictionary=self.getBuildFlags()) + self.step_out_test(self.step_out_with_python) + + def setUp(self): + # Call super's setUp(). + TestBase.setUp(self) + # Find the line number for our breakpoint. + self.breakpoint = line_number('main.cpp', '// Set breakpoint here') + if "gcc" in self.getCompiler() or self.isIntelCompiler(): + self.step_out_destination = line_number('main.cpp', '// Expect to stop here after step-out (icc and gcc)') + else: + self.step_out_destination = line_number('main.cpp', '// Expect to stop here after step-out (clang)') + + def step_out_single_thread_with_cmd(self): + self.step_out_with_cmd("this-thread") + self.expect("thread backtrace all", "Thread location after step out is correct", + substrs = ["main.cpp:%d" % self.step_out_destination, + "main.cpp:%d" % self.breakpoint]) + + def step_out_all_threads_with_cmd(self): + self.step_out_with_cmd("all-threads") + self.expect("thread backtrace all", "Thread location after step out is correct", + substrs = ["main.cpp:%d" % self.step_out_destination]) + + def step_out_with_cmd(self, run_mode): + self.runCmd("thread select %d" % self.step_out_thread.GetIndexID()) + self.runCmd("thread step-out -m %s" % run_mode) + self.expect("process status", "Expected stop reason to be step-out", + substrs = ["stop reason = step out"]) + + self.expect("thread list", "Selected thread did not change during step-out", + substrs = ["* thread #%d" % self.step_out_thread.GetIndexID()]) + + def step_out_with_python(self): + self.step_out_thread.StepOut() + + reason = self.step_out_thread.GetStopReason() + self.assertEqual(lldb.eStopReasonPlanComplete, reason, + "Expected thread stop reason 'plancomplete', but got '%s'" % lldbutil.stop_reason_to_str(reason)) + + # Verify location after stepping out + frame = self.step_out_thread.GetFrameAtIndex(0) + desc = lldbutil.get_description(frame.GetLineEntry()) + expect = "main.cpp:%d" % self.step_out_destination + self.assertTrue(expect in desc, "Expected %s but thread stopped at %s" % (expect, desc)) + + 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) |
