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"""
Tests that TSan correctly reports the filename and line number of a racy global C++ variable.
"""
import os, time
import lldb
from lldbsuite.test.lldbtest import *
from lldbsuite.test.decorators import *
import lldbsuite.test.lldbutil as lldbutil
import json
class TsanCPPGlobalLocationTestCase(TestBase):
mydir = TestBase.compute_mydir(__file__)
@expectedFailureAll(oslist=["linux"], bugnumber="non-core functionality, need to reenable and fix later (DES 2014.11.07)")
@skipIfFreeBSD # llvm.org/pr21136 runtimes not yet available by default
@skipIfRemote
@skipUnlessCompilerRt
@skipUnlessThreadSanitizer
def test (self):
self.build ()
self.tsan_tests ()
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
def tsan_tests (self):
exe = os.path.join (os.getcwd(), "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'))
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