lldb/test/API/functionalities/tsan/multiple/TestTsanMultiple.py

   1 """
   2 Test ThreadSanitizer when multiple different issues are found.
   3 """
   4
   5 import lldb
   6 from lldbsuite.test.lldbtest import *
   7 from lldbsuite.test.decorators import *
   8 import lldbsuite.test.lldbutil as lldbutil
   9 import json
  10
  11
  12 class TsanMultipleTestCase(TestBase):
  13     @expectedFailureAll(
  14         oslist=["linux"],
  15         bugnumber="non-core functionality, need to reenable and fix later (DES 2014.11.07)",
  16     )
  17     @expectedFailureNetBSD
  18     @skipIfFreeBSD  # llvm.org/pr21136 runtimes not yet available by default
  19     @skipIfRemote
  20     @skipUnlessThreadSanitizer
  21     @add_test_categories(["objc"])
  22     def test(self):
  23         self.build()
  24         self.tsan_tests()
  25
  26     def tsan_tests(self):
  27         exe = self.getBuildArtifact("a.out")
  28         self.expect("file " + exe, patterns=["Current executable set to .*a.out"])
  29
  30         self.runCmd("env TSAN_OPTIONS=abort_on_error=0")
  31
  32         self.runCmd("run")
  33
  34         stop_reason = (
  35             self.dbg.GetSelectedTarget().process.GetSelectedThread().GetStopReason()
  36         )
  37         if stop_reason == lldb.eStopReasonExec:
  38             # On OS X 10.10 and older, we need to re-exec to enable
  39             # interceptors.
  40             self.runCmd("continue")
  41
  42         report_count = 0
  43         while (
  44             self.dbg.GetSelectedTarget().process.GetSelectedThread().GetStopReason()
  45             == lldb.eStopReasonInstrumentation
  46         ):
  47             report_count += 1
  48
  49             stop_description = (
  50                 self.dbg.GetSelectedTarget()
  51                 .process.GetSelectedThread()
  52                 .GetStopDescription(100)
  53             )
  54
  55             self.assertTrue(
  56                 (stop_description == "Data race detected")
  57                 or (stop_description == "Use of deallocated memory detected")
  58                 or (stop_description == "Thread leak detected")
  59                 or (
  60                     stop_description
  61                     == "Use of an uninitialized or destroyed mutex detected"
  62                 )
  63                 or (
  64                     stop_description
  65                     == "Unlock of an unlocked mutex (or by a wrong thread) detected"
  66                 )
  67             )
  68
  69             self.expect(
  70                 "thread info -s",
  71                 "The extended stop info should contain the TSan provided fields",
  72                 substrs=["instrumentation_class", "description", "mops"],
  73             )
  74
  75             output_lines = self.res.GetOutput().split("\n")
  76             json_line = "\n".join(output_lines[2:])
  77             data = json.loads(json_line)
  78             self.assertEqual(data["instrumentation_class"], "ThreadSanitizer")
  79
  80             backtraces = (
  81                 self.dbg.GetSelectedTarget()
  82                 .process.GetSelectedThread()
  83                 .GetStopReasonExtendedBacktraces(
  84                     lldb.eInstrumentationRuntimeTypeThreadSanitizer
  85                 )
  86             )
  87             self.assertTrue(backtraces.GetSize() >= 1)
  88
  89             self.runCmd("continue")
  90
  91         self.assertEqual(
  92             self.dbg.GetSelectedTarget().process.GetState(),
  93             lldb.eStateExited,
  94             PROCESS_EXITED,
  95         )