| """ |
| Tests that TSan correctly reports the filename and line number of a racy global C++ variable. |
| """ |
| |
| import lldb |
| from lldbsuite.test.lldbtest import * |
| from lldbsuite.test.decorators import * |
| import lldbsuite.test.lldbutil as lldbutil |
| import json |
| |
| |
| class TsanCPPGlobalLocationTestCase(TestBase): |
| @expectedFailureAll( |
| oslist=["linux"], |
| bugnumber="non-core functionality, need to reenable and fix later (DES 2014.11.07)", |
| ) |
| @expectedFailureNetBSD |
| @skipIfFreeBSD # llvm.org/pr21136 runtimes not yet available by default |
| @skipIfRemote |
| @skipUnlessThreadSanitizer |
| def test(self): |
| self.build() |
| self.tsan_tests() |
| |
| def tsan_tests(self): |
| exe = self.getBuildArtifact("a.out") |
| self.expect("file " + exe, patterns=["Current executable set to .*a.out"]) |
| |
| self.runCmd("run") |
| |
| stop_reason = ( |
| self.dbg.GetSelectedTarget().process.GetSelectedThread().GetStopReason() |
| ) |
| if stop_reason == lldb.eStopReasonExec: |
| # On OS X 10.10 and older, we need to re-exec to enable |
| # interceptors. |
| self.runCmd("continue") |
| |
| # the stop reason of the thread should be breakpoint. |
| self.expect( |
| "thread list", |
| "A data race should be detected", |
| substrs=["stopped", "stop reason = Data race detected"], |
| ) |
| |
| self.expect( |
| "thread info -s", |
| "The extended stop info should contain the TSan provided fields", |
| substrs=["instrumentation_class", "description", "mops"], |
| ) |
| |
| output_lines = self.res.GetOutput().split("\n") |
| json_line = "\n".join(output_lines[2:]) |
| data = json.loads(json_line) |
| self.assertEqual(data["instrumentation_class"], "ThreadSanitizer") |
| self.assertEqual(data["issue_type"], "data-race") |
| |
| self.assertTrue(data["location_filename"].endswith("/main.cpp")) |
| self.assertEqual( |
| data["location_line"], line_number("main.cpp", "// global variable") |
| ) |
