artulab.com Git - openbsd/blob

   1 """
   2 Test watchpoint modify command to set condition on a watchpoint.
   3 """
   4
   5
   6
   7 import lldb
   8 from lldbsuite.test.decorators import *
   9 from lldbsuite.test.lldbtest import *
  10 from lldbsuite.test import lldbutil
  11
  12
  13 class WatchpointConditionCmdTestCase(TestBase):
  14
  15     mydir = TestBase.compute_mydir(__file__)
  16     NO_DEBUG_INFO_TESTCASE = True
  17
  18     def setUp(self):
  19         # Call super's setUp().
  20         TestBase.setUp(self)
  21         # Our simple source filename.
  22         self.source = 'main.cpp'
  23         # Find the line number to break inside main().
  24         self.line = line_number(
  25             self.source, '// Set break point at this line.')
  26         # And the watchpoint variable declaration line number.
  27         self.decl = line_number(self.source,
  28                                 '// Watchpoint variable declaration.')
  29         # Build dictionary to have unique executable names for each test
  30         # method.
  31         self.exe_name = self.testMethodName
  32         self.d = {'CXX_SOURCES': self.source, 'EXE': self.exe_name}
  33
  34     def test_watchpoint_cond(self):
  35         """Test watchpoint condition."""
  36         self.build(dictionary=self.d)
  37         self.setTearDownCleanup(dictionary=self.d)
  38
  39         exe = self.getBuildArtifact(self.exe_name)
  40         self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
  41
  42         # Add a breakpoint to set a watchpoint when stopped on the breakpoint.
  43         lldbutil.run_break_set_by_file_and_line(
  44             self, None, self.line, num_expected_locations=1)
  45
  46         # Run the program.
  47         self.runCmd("run", RUN_SUCCEEDED)
  48
  49         # We should be stopped again due to the breakpoint.
  50         # The stop reason of the thread should be breakpoint.
  51         self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
  52                     substrs=['stopped',
  53                              'stop reason = breakpoint'])
  54
  55         # Now let's set a write-type watchpoint for 'global'.
  56         # With a condition of 'global==5'.
  57         self.expect(
  58             "watchpoint set variable -w write global",
  59             WATCHPOINT_CREATED,
  60             substrs=[
  61                 'Watchpoint created',
  62                 'size = 4',
  63                 'type = w',
  64                 '%s:%d' %
  65                 (self.source,
  66                  self.decl)])
  67
  68         self.runCmd("watchpoint modify -c 'global==5'")
  69
  70         # Use the '-v' option to do verbose listing of the watchpoint.
  71         # The hit count should be 0 initially.
  72         self.expect("watchpoint list -v",
  73                     substrs=['hit_count = 0', 'global==5'])
  74
  75         self.runCmd("process continue")
  76
  77         # We should be stopped again due to the watchpoint (write type).
  78         # The stop reason of the thread should be watchpoint.
  79         self.expect("thread backtrace", STOPPED_DUE_TO_WATCHPOINT,
  80                     substrs=['stop reason = watchpoint'])
  81         self.expect("frame variable --show-globals global",
  82                     substrs=['(int32_t)', 'global = 5'])
  83
  84         # Use the '-v' option to do verbose listing of the watchpoint.
  85         # The hit count should now be 2.
  86         self.expect("watchpoint list -v",
  87                     substrs=['hit_count = 5'])