62 lines · python
1"""2Tests that TSan correctly reports the filename and line number of a racy global C++ variable.3"""4 5import lldb6from lldbsuite.test.lldbtest import *7from lldbsuite.test.decorators import *8import lldbsuite.test.lldbutil as lldbutil9import json10 11 12class TsanCPPGlobalLocationTestCase(TestBase):13 @expectedFailureAll(14 oslist=["linux"],15 bugnumber="non-core functionality, need to reenable and fix later (DES 2014.11.07)",16 )17 @expectedFailureNetBSD18 @skipIfFreeBSD # llvm.org/pr21136 runtimes not yet available by default19 @skipIfRemote20 @skipUnlessThreadSanitizer21 def test(self):22 self.build()23 self.tsan_tests()24 25 def tsan_tests(self):26 exe = self.getBuildArtifact("a.out")27 self.expect("file " + exe, patterns=["Current executable set to .*a.out"])28 29 self.runCmd("run")30 31 stop_reason = (32 self.dbg.GetSelectedTarget().process.GetSelectedThread().GetStopReason()33 )34 if stop_reason == lldb.eStopReasonExec:35 # On OS X 10.10 and older, we need to re-exec to enable36 # interceptors.37 self.runCmd("continue")38 39 # the stop reason of the thread should be breakpoint.40 self.expect(41 "thread list",42 "A data race should be detected",43 substrs=["stopped", "stop reason = Data race detected"],44 )45 46 self.expect(47 "thread info -s",48 "The extended stop info should contain the TSan provided fields",49 substrs=["instrumentation_class", "description", "mops"],50 )51 52 output_lines = self.res.GetOutput().split("\n")53 json_line = "\n".join(output_lines[2:])54 data = json.loads(json_line)55 self.assertEqual(data["instrumentation_class"], "ThreadSanitizer")56 self.assertEqual(data["issue_type"], "data-race")57 58 self.assertTrue(data["location_filename"].endswith("/main.cpp"))59 self.assertEqual(60 data["location_line"], line_number("main.cpp", "// global variable")61 )62