packages/Python/lldbsuite/test/functionalities/thread/thread_specific_break/TestThreadSpecificBreakpoint.py

   1 """
   2 Test that we obey thread conditioned breakpoints.
   3 """
   4
   5 from __future__ import print_function
   6
   7
   8
   9 import os, time
  10 import re
  11 import lldb
  12 from lldbsuite.test.decorators import *
  13 from lldbsuite.test.lldbtest import *
  14 from lldbsuite.test import lldbutil
  15
  16 class ThreadSpecificBreakTestCase(TestBase):
  17
  18     mydir = TestBase.compute_mydir(__file__)
  19
  20     @add_test_categories(['pyapi'])
  21     @expectedFailureAll(oslist=["windows"])
  22     def test_python(self):
  23         """Test that we obey thread conditioned breakpoints."""
  24         self.build()
  25         exe = os.path.join(os.getcwd(), "a.out")
  26
  27         target = self.dbg.CreateTarget(exe)
  28         self.assertTrue(target, VALID_TARGET)
  29
  30         # This test works by setting a breakpoint in a function conditioned to stop only on
  31         # the main thread, and then calling this function on a secondary thread, joining,
  32         # and then calling again on the main thread.  If the thread specific breakpoint works
  33         # then it should not be hit on the secondary thread, only on the main thread.
  34
  35         main_source_spec = lldb.SBFileSpec ("main.cpp")
  36
  37         main_breakpoint = target.BreakpointCreateBySourceRegex("Set main breakpoint here", main_source_spec);
  38         thread_breakpoint = target.BreakpointCreateBySourceRegex("Set thread-specific breakpoint here", main_source_spec)
  39
  40         self.assertTrue(main_breakpoint.IsValid(), "Failed to set main breakpoint.")
  41         self.assertGreater(main_breakpoint.GetNumLocations(), 0, "main breakpoint has no locations associated with it.")
  42         self.assertTrue(thread_breakpoint.IsValid(), "Failed to set thread breakpoint.")
  43         self.assertGreater(thread_breakpoint.GetNumLocations(), 0, "thread breakpoint has no locations associated with it.")
  44
  45         process = target.LaunchSimple (None, None, self.get_process_working_directory())
  46
  47         self.assertTrue(process, PROCESS_IS_VALID)
  48
  49         stopped_threads = lldbutil.get_threads_stopped_at_breakpoint(process, main_breakpoint)
  50         self.assertEqual(len(stopped_threads), 1, "main breakpoint stopped at unexpected number of threads")
  51         main_thread = stopped_threads[0]
  52         main_thread_id = main_thread.GetThreadID()
  53
  54         # Set the thread-specific breakpoint to only stop on the main thread.  The run the function
  55         # on another thread and join on it.  If the thread-specific breakpoint works, the next
  56         # stop should be on the main thread.
  57         thread_breakpoint.SetThreadID(main_thread_id)
  58
  59         process.Continue()
  60         next_stop_state = process.GetState()
  61         self.assertEqual(next_stop_state, lldb.eStateStopped, "We should have stopped at the thread breakpoint.")
  62         stopped_threads = lldbutil.get_threads_stopped_at_breakpoint(process, thread_breakpoint)
  63         self.assertEqual(len(stopped_threads), 1, "thread breakpoint stopped at unexpected number of threads")
  64         self.assertEqual(stopped_threads[0].GetThreadID(), main_thread_id, "thread breakpoint stopped at the wrong thread")