packages/Python/lldbsuite/test/lang/c/global_variables/TestGlobalVariables.py

   1 """Show global variables and check that they do indeed have global scopes."""
   2
   3 from __future__ import print_function
   4
   5
   6 from lldbsuite.test.lldbtest import *
   7 import lldbsuite.test.lldbutil as lldbutil
   8
   9 class GlobalVariablesTestCase(TestBase):
  10
  11     mydir = TestBase.compute_mydir(__file__)
  12
  13     def setUp(self):
  14         # Call super's setUp().
  15         TestBase.setUp(self)
  16         # Find the line number to break inside main().
  17         self.source = 'main.c'
  18         self.line = line_number(self.source, '// Set break point at this line.')
  19         self.shlib_names = ["a"]
  20
  21     @expectedFailureWindows("llvm.org/pr24764")
  22     @expectedFailureAll("llvm.org/pr25872", oslist=["macosx"], debug_info="dwarf")
  23     def test_c_global_variables(self):
  24         """Test 'frame variable --scope --no-args' which omits args and shows scopes."""
  25         self.build()
  26
  27         # Create a target by the debugger.
  28         target = self.dbg.CreateTarget("a.out")
  29         self.assertTrue(target, VALID_TARGET)
  30
  31         # Break inside the main.
  32         lldbutil.run_break_set_by_file_and_line (self, self.source, self.line, num_expected_locations=1, loc_exact=True)
  33
  34         # Register our shared libraries for remote targets so they get automatically uploaded
  35         environment = self.registerSharedLibrariesWithTarget(target, self.shlib_names)
  36
  37         # Now launch the process, and do not stop at entry point.
  38         process = target.LaunchSimple (None, environment, self.get_process_working_directory())
  39         self.assertTrue(process, PROCESS_IS_VALID)
  40
  41         # The stop reason of the thread should be breakpoint.
  42         self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
  43             substrs = ['stopped',
  44                        'stop reason = breakpoint'])
  45
  46         # The breakpoint should have a hit count of 1.
  47         self.expect("breakpoint list -f", BREAKPOINT_HIT_ONCE,
  48             substrs = [' resolved, hit count = 1'])
  49
  50         # Check that GLOBAL scopes are indicated for the variables.
  51         self.expect("frame variable --show-types --scope --show-globals --no-args", VARIABLES_DISPLAYED_CORRECTLY,
  52             substrs = ['GLOBAL: (int) g_file_global_int = 42',
  53                        'STATIC: (const int) g_file_static_int = 2',
  54                        'GLOBAL: (const char *) g_file_global_cstr',
  55                        '"g_file_global_cstr"',
  56                        'STATIC: (const char *) g_file_static_cstr',
  57                        '"g_file_static_cstr"',
  58                        'GLOBAL: (int) g_common_1 = 21'])
  59
  60         # 'frame variable' should support address-of operator.
  61         self.runCmd("frame variable &g_file_global_int")
  62
  63         # Exercise the 'target variable' command to display globals in a.c file.
  64         self.expect("target variable g_a", VARIABLES_DISPLAYED_CORRECTLY,
  65                     substrs = ['g_a', '123'])
  66         self.expect("target variable g_marked_spot.x", VARIABLES_DISPLAYED_CORRECTLY,
  67                     substrs = ['g_marked_spot.x', '20'])
  68
  69         # rdar://problem/9747668
  70         # runCmd: target variable g_marked_spot.y
  71         # output: (int) g_marked_spot.y = <a.o[0x214] can't be resolved,  in not currently loaded.
  72         #         >
  73         self.expect("target variable g_marked_spot.y", VARIABLES_DISPLAYED_CORRECTLY,
  74                     substrs = ['g_marked_spot.y', '21'])
  75         self.expect("target variable g_marked_spot.y", VARIABLES_DISPLAYED_CORRECTLY, matching=False,
  76                     substrs = ["can't be resolved"])