packages/Python/lldbsuite/test/functionalities/thread/thread_specific_break_plus_condition/TestThreadSpecificBpPlusCondition.py

   1 """
   2 Test that we obey thread conditioned breakpoints and expression
   3 conditioned breakpoints simultaneously
   4 """
   5
   6 from __future__ import print_function
   7
   8
   9 import os
  10 import time
  11 import re
  12 import lldb
  13 from lldbsuite.test.decorators import *
  14 from lldbsuite.test.lldbtest import *
  15 from lldbsuite.test import lldbutil
  16
  17
  18 class ThreadSpecificBreakPlusConditionTestCase(TestBase):
  19
  20     mydir = TestBase.compute_mydir(__file__)
  21
  22     # test frequently times out or hangs
  23     @skipIf(oslist=['windows', 'freebsd'])
  24     @skipIfDarwin
  25     # hits break in another thread in testrun
  26     @expectedFailureAll(oslist=['freebsd'], bugnumber='llvm.org/pr18522')
  27     @add_test_categories(['pyapi'])
  28     @expectedFailureAll(oslist=['ios', 'watchos', 'tvos', 'bridgeos'], archs=['armv7', 'armv7k'], bugnumber='rdar://problem/34563348') # Two threads seem to end up with the same my_value when built for armv7.
  29     def test_python(self):
  30         """Test that we obey thread conditioned breakpoints."""
  31         self.build()
  32         exe = self.getBuildArtifact("a.out")
  33
  34         target = self.dbg.CreateTarget(exe)
  35         self.assertTrue(target, VALID_TARGET)
  36
  37         main_source_spec = lldb.SBFileSpec("main.cpp")
  38
  39         # Set a breakpoint in the thread body, and make it active for only the
  40         # first thread.
  41         break_thread_body = target.BreakpointCreateBySourceRegex(
  42             "Break here in thread body.", main_source_spec)
  43         self.assertTrue(
  44             break_thread_body.IsValid() and break_thread_body.GetNumLocations() > 0,
  45             "Failed to set thread body breakpoint.")
  46
  47         process = target.LaunchSimple(
  48             None, None, self.get_process_working_directory())
  49
  50         self.assertTrue(process, PROCESS_IS_VALID)
  51
  52         threads = lldbutil.get_threads_stopped_at_breakpoint(
  53             process, break_thread_body)
  54
  55         victim_thread = threads[0]
  56
  57         # Pick one of the threads, and change the breakpoint so it ONLY stops for this thread,
  58         # but add a condition that it won't stop for this thread's my_value.  The other threads
  59         # pass the condition, so they should stop, but if the thread-specification is working
  60         # they should not stop.  So nobody should hit the breakpoint anymore, and we should
  61         # just exit cleanly.
  62
  63         frame = victim_thread.GetFrameAtIndex(0)
  64         value = frame.FindVariable("my_value").GetValueAsSigned(0)
  65         self.assertTrue(
  66             value > 0 and value < 11,
  67             "Got a reasonable value for my_value.")
  68
  69         cond_string = "my_value != %d" % (value)
  70
  71         break_thread_body.SetThreadID(victim_thread.GetThreadID())
  72         break_thread_body.SetCondition(cond_string)
  73
  74         process.Continue()
  75
  76         next_stop_state = process.GetState()
  77         self.assertTrue(
  78             next_stop_state == lldb.eStateExited,
  79             "We should have not hit the breakpoint again.")