84 lines · python
1"""2Test the use of setjmp/longjmp for non-local goto operations in a single-threaded inferior.3"""4 5 6import lldb7from lldbsuite.test.decorators import *8from lldbsuite.test.lldbtest import *9from lldbsuite.test import lldbutil10 11 12class LongjmpTestCase(TestBase):13 @skipIfDarwin # llvm.org/pr16769: LLDB on Mac OS X dies in function ReadRegisterBytes in GDBRemoteRegisterContext.cpp14 @expectedFailureAll(oslist=["freebsd", "linux"], bugnumber="llvm.org/pr20231")15 @expectedFailureAll(oslist=["windows"], bugnumber="llvm.org/pr24778")16 @expectedFlakeyNetBSD17 def test_step_out(self):18 """Test stepping when the inferior calls setjmp/longjmp, in particular, thread step-out."""19 self.build()20 self.step_out()21 22 @skipIfDarwin # llvm.org/pr16769: LLDB on Mac OS X dies in function ReadRegisterBytes in GDBRemoteRegisterContext.cpp23 @expectedFailureAll(oslist=["freebsd", "linux"], bugnumber="llvm.org/pr20231")24 @expectedFailureAll(oslist=["windows"], bugnumber="llvm.org/pr24778")25 @skipIfNetBSD26 def test_step_over(self):27 """Test stepping when the inferior calls setjmp/longjmp, in particular, thread step-over a longjmp."""28 self.build()29 self.step_over()30 31 @skipIfDarwin # llvm.org/pr16769: LLDB on Mac OS X dies in function ReadRegisterBytes in GDBRemoteRegisterContext.cpp32 @expectedFailureAll(oslist=["freebsd", "linux"], bugnumber="llvm.org/pr20231")33 @expectedFailureAll(oslist=["windows"], bugnumber="llvm.org/pr24778")34 @expectedFlakeyNetBSD35 def test_step_back_out(self):36 """Test stepping when the inferior calls setjmp/longjmp, in particular, thread step-out after thread step-in."""37 self.build()38 self.step_back_out()39 40 def start_test(self, symbol):41 exe = self.getBuildArtifact("a.out")42 43 self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)44 45 # Break in main().46 lldbutil.run_break_set_by_symbol(self, symbol, num_expected_locations=-1)47 48 self.runCmd("run", RUN_SUCCEEDED)49 50 # The stop reason of the thread should be breakpoint.51 self.expect(52 "thread list",53 STOPPED_DUE_TO_BREAKPOINT,54 substrs=["stopped", "stop reason = breakpoint"],55 )56 57 def check_status(self):58 # Note: Depending on the generated mapping of DWARF to assembly,59 # the process may have stopped or exited.60 self.expect(61 "process status",62 PROCESS_STOPPED,63 patterns=["Process .* exited with status = 0"],64 )65 66 def step_out(self):67 self.start_test("do_jump")68 self.runCmd("thread step-out", RUN_SUCCEEDED)69 self.check_status()70 71 def step_over(self):72 self.start_test("do_jump")73 self.runCmd("thread step-over", RUN_SUCCEEDED)74 self.runCmd("thread step-over", RUN_SUCCEEDED)75 self.check_status()76 77 def step_back_out(self):78 self.start_test("main")79 80 self.runCmd("thread step-over", RUN_SUCCEEDED)81 self.runCmd("thread step-in", RUN_SUCCEEDED)82 self.runCmd("thread step-out", RUN_SUCCEEDED)83 self.check_status()84