diff options
Diffstat (limited to 'packages/Python/lldbsuite/test/expression_command/call-restarts/TestCallThatRestarts.py')
| -rw-r--r-- | packages/Python/lldbsuite/test/expression_command/call-restarts/TestCallThatRestarts.py | 150 |
1 files changed, 97 insertions, 53 deletions
diff --git a/packages/Python/lldbsuite/test/expression_command/call-restarts/TestCallThatRestarts.py b/packages/Python/lldbsuite/test/expression_command/call-restarts/TestCallThatRestarts.py index 6b754a76878b..bef4be1eb5f8 100644 --- a/packages/Python/lldbsuite/test/expression_command/call-restarts/TestCallThatRestarts.py +++ b/packages/Python/lldbsuite/test/expression_command/call-restarts/TestCallThatRestarts.py @@ -5,12 +5,12 @@ Test calling a function that hits a signal set to auto-restart, make sure the ca from __future__ import print_function - import lldb from lldbsuite.test.decorators import * from lldbsuite.test.lldbtest import * from lldbsuite.test import lldbutil + class ExprCommandThatRestartsTestCase(TestBase): mydir = TestBase.compute_mydir(__file__) @@ -20,24 +20,30 @@ class ExprCommandThatRestartsTestCase(TestBase): TestBase.setUp(self) self.main_source = "lotta-signals.c" - self.main_source_spec = lldb.SBFileSpec (self.main_source) + self.main_source_spec = lldb.SBFileSpec(self.main_source) - @skipIfFreeBSD # llvm.org/pr19246: intermittent failure - @skipIfDarwin # llvm.org/pr19246: intermittent failure - @skipIfWindows # Test relies on signals, unsupported on Windows + @skipIfFreeBSD # llvm.org/pr19246: intermittent failure + @skipIfDarwin # llvm.org/pr19246: intermittent failure + @skipIfWindows # Test relies on signals, unsupported on Windows def test(self): """Test calling function that hits a signal and restarts.""" self.build() self.call_function() - def check_after_call (self, num_sigchld): + def check_after_call(self, num_sigchld): after_call = self.sigchld_no.GetValueAsSigned(-1) - self.assertTrue (after_call - self.start_sigchld_no == num_sigchld, "Really got %d SIGCHLD signals through the call."%(num_sigchld)) + self.assertTrue( + after_call - + self.start_sigchld_no == num_sigchld, + "Really got %d SIGCHLD signals through the call." % + (num_sigchld)) self.start_sigchld_no = after_call # Check that we are back where we were before: frame = self.thread.GetFrameAtIndex(0) - self.assertTrue (self.orig_frame_pc == frame.GetPC(), "Restored the zeroth frame correctly") + self.assertTrue( + self.orig_frame_pc == frame.GetPC(), + "Restored the zeroth frame correctly") def call_function(self): exe_name = "a.out" @@ -46,95 +52,133 @@ class ExprCommandThatRestartsTestCase(TestBase): target = self.dbg.CreateTarget(exe) self.assertTrue(target, VALID_TARGET) empty = lldb.SBFileSpec() - breakpoint = target.BreakpointCreateBySourceRegex('Stop here in main.',self.main_source_spec) + breakpoint = target.BreakpointCreateBySourceRegex( + 'Stop here in main.', self.main_source_spec) self.assertTrue(breakpoint.GetNumLocations() > 0, VALID_BREAKPOINT) # Launch the process, and do not stop at the entry point. - process = target.LaunchSimple (None, None, self.get_process_working_directory()) + process = target.LaunchSimple( + None, None, self.get_process_working_directory()) self.assertTrue(process, PROCESS_IS_VALID) # Frame #0 should be at our breakpoint. - threads = lldbutil.get_threads_stopped_at_breakpoint (process, breakpoint) - + threads = lldbutil.get_threads_stopped_at_breakpoint( + process, breakpoint) + self.assertTrue(len(threads) == 1) self.thread = threads[0] - + # Make sure the SIGCHLD behavior is pass/no-stop/no-notify: return_obj = lldb.SBCommandReturnObject() - self.dbg.GetCommandInterpreter().HandleCommand("process handle SIGCHLD -s 0 -p 1 -n 0", return_obj) - self.assertTrue (return_obj.Succeeded() == True, "Set SIGCHLD to pass, no-stop") + self.dbg.GetCommandInterpreter().HandleCommand( + "process handle SIGCHLD -s 0 -p 1 -n 0", return_obj) + self.assertTrue(return_obj.Succeeded(), "Set SIGCHLD to pass, no-stop") # The sigchld_no variable should be 0 at this point. self.sigchld_no = target.FindFirstGlobalVariable("sigchld_no") - self.assertTrue (self.sigchld_no.IsValid(), "Got a value for sigchld_no") + self.assertTrue( + self.sigchld_no.IsValid(), + "Got a value for sigchld_no") - self.start_sigchld_no = self.sigchld_no.GetValueAsSigned (-1) - self.assertTrue (self.start_sigchld_no != -1, "Got an actual value for sigchld_no") + self.start_sigchld_no = self.sigchld_no.GetValueAsSigned(-1) + self.assertTrue( + self.start_sigchld_no != -1, + "Got an actual value for sigchld_no") options = lldb.SBExpressionOptions() - # processing 30 signals takes a while, increase the expression timeout a bit - options.SetTimeoutInMicroSeconds(3000000) # 3s + # processing 30 signals takes a while, increase the expression timeout + # a bit + options.SetTimeoutInMicroSeconds(3000000) # 3s options.SetUnwindOnError(True) frame = self.thread.GetFrameAtIndex(0) - # Store away the PC to check that the functions unwind to the right place after calls + # Store away the PC to check that the functions unwind to the right + # place after calls self.orig_frame_pc = frame.GetPC() num_sigchld = 30 - value = frame.EvaluateExpression ("call_me (%d)"%(num_sigchld), options) - self.assertTrue (value.IsValid()) - self.assertTrue (value.GetError().Success() == True) - self.assertTrue (value.GetValueAsSigned(-1) == num_sigchld) + value = frame.EvaluateExpression( + "call_me (%d)" % + (num_sigchld), options) + self.assertTrue(value.IsValid()) + self.assertTrue(value.GetError().Success()) + self.assertTrue(value.GetValueAsSigned(-1) == num_sigchld) self.check_after_call(num_sigchld) # Okay, now try with a breakpoint in the called code in the case where # we are ignoring breakpoint hits. - handler_bkpt = target.BreakpointCreateBySourceRegex("Got sigchld %d.", self.main_source_spec) - self.assertTrue (handler_bkpt.GetNumLocations() > 0) + handler_bkpt = target.BreakpointCreateBySourceRegex( + "Got sigchld %d.", self.main_source_spec) + self.assertTrue(handler_bkpt.GetNumLocations() > 0) options.SetIgnoreBreakpoints(True) options.SetUnwindOnError(True) - value = frame.EvaluateExpression("call_me (%d)"%(num_sigchld), options) + value = frame.EvaluateExpression( + "call_me (%d)" % + (num_sigchld), options) - self.assertTrue (value.IsValid() and value.GetError().Success() == True) - self.assertTrue (value.GetValueAsSigned(-1) == num_sigchld) + self.assertTrue(value.IsValid() and value.GetError().Success()) + self.assertTrue(value.GetValueAsSigned(-1) == num_sigchld) self.check_after_call(num_sigchld) - # Now set the signal to print but not stop and make sure that calling still works: - self.dbg.GetCommandInterpreter().HandleCommand("process handle SIGCHLD -s 0 -p 1 -n 1", return_obj) - self.assertTrue (return_obj.Succeeded() == True, "Set SIGCHLD to pass, no-stop, notify") + # Now set the signal to print but not stop and make sure that calling + # still works: + self.dbg.GetCommandInterpreter().HandleCommand( + "process handle SIGCHLD -s 0 -p 1 -n 1", return_obj) + self.assertTrue( + return_obj.Succeeded(), + "Set SIGCHLD to pass, no-stop, notify") - value = frame.EvaluateExpression("call_me (%d)"%(num_sigchld), options) + value = frame.EvaluateExpression( + "call_me (%d)" % + (num_sigchld), options) - self.assertTrue (value.IsValid() and value.GetError().Success() == True) - self.assertTrue (value.GetValueAsSigned(-1) == num_sigchld) + self.assertTrue(value.IsValid() and value.GetError().Success()) + self.assertTrue(value.GetValueAsSigned(-1) == num_sigchld) self.check_after_call(num_sigchld) - # Now set this unwind on error to false, and make sure that we still complete the call: + # Now set this unwind on error to false, and make sure that we still + # complete the call: options.SetUnwindOnError(False) - value = frame.EvaluateExpression("call_me (%d)"%(num_sigchld), options) + value = frame.EvaluateExpression( + "call_me (%d)" % + (num_sigchld), options) - self.assertTrue (value.IsValid() and value.GetError().Success() == True) - self.assertTrue (value.GetValueAsSigned(-1) == num_sigchld) + self.assertTrue(value.IsValid() and value.GetError().Success()) + self.assertTrue(value.GetValueAsSigned(-1) == num_sigchld) self.check_after_call(num_sigchld) # Okay, now set UnwindOnError to true, and then make the signal behavior to stop # and see that now we do stop at the signal point: - - self.dbg.GetCommandInterpreter().HandleCommand("process handle SIGCHLD -s 1 -p 1 -n 1", return_obj) - self.assertTrue (return_obj.Succeeded() == True, "Set SIGCHLD to pass, stop, notify") - - value = frame.EvaluateExpression("call_me (%d)"%(num_sigchld), options) - self.assertTrue (value.IsValid() and value.GetError().Success() == False) - - # Set signal handling back to no-stop, and continue and we should end up back in out starting frame: - self.dbg.GetCommandInterpreter().HandleCommand("process handle SIGCHLD -s 0 -p 1 -n 1", return_obj) - self.assertTrue (return_obj.Succeeded() == True, "Set SIGCHLD to pass, no-stop, notify") + + self.dbg.GetCommandInterpreter().HandleCommand( + "process handle SIGCHLD -s 1 -p 1 -n 1", return_obj) + self.assertTrue( + return_obj.Succeeded(), + "Set SIGCHLD to pass, stop, notify") + + value = frame.EvaluateExpression( + "call_me (%d)" % + (num_sigchld), options) + self.assertTrue( + value.IsValid() and value.GetError().Success() == False) + + # Set signal handling back to no-stop, and continue and we should end + # up back in out starting frame: + self.dbg.GetCommandInterpreter().HandleCommand( + "process handle SIGCHLD -s 0 -p 1 -n 1", return_obj) + self.assertTrue( + return_obj.Succeeded(), + "Set SIGCHLD to pass, no-stop, notify") error = process.Continue() - self.assertTrue (error.Success(), "Continuing after stopping for signal succeeds.") - + self.assertTrue( + error.Success(), + "Continuing after stopping for signal succeeds.") + frame = self.thread.GetFrameAtIndex(0) - self.assertTrue (frame.GetPC() == self.orig_frame_pc, "Continuing returned to the place we started.") + self.assertTrue( + frame.GetPC() == self.orig_frame_pc, + "Continuing returned to the place we started.") |