packages/Python/lldbsuite/test/lang/c/shared_lib/TestSharedLib.py

   1 """Test that types defined in shared libraries work correctly."""
   2
   3 from __future__ import print_function
   4
   5
   6
   7 import unittest2
   8 import lldb
   9 from lldbsuite.test.lldbtest import *
  10 import lldbsuite.test.lldbutil as lldbutil
  11
  12 class SharedLibTestCase(TestBase):
  13
  14     mydir = TestBase.compute_mydir(__file__)
  15
  16     def test_expr(self):
  17         """Test that types work when defined in a shared library and forward-declared in the main executable"""
  18         if "clang" in self.getCompiler() and "3.4" in self.getCompilerVersion():
  19             self.skipTest("llvm.org/pr16214 -- clang emits partial DWARF for structures referenced via typedef")
  20
  21         self.build()
  22         self.common_setup()
  23
  24         # This should display correctly.
  25         self.expect("expression --show-types -- *my_foo_ptr", VARIABLES_DISPLAYED_CORRECTLY,
  26             substrs = ["(foo)", "(sub_foo)", "other_element = 3"])
  27
  28     @unittest2.expectedFailure("rdar://problem/10704639")
  29     def test_frame_variable(self):
  30         """Test that types work when defined in a shared library and forward-declared in the main executable"""
  31         self.build()
  32         self.common_setup()
  33
  34         # This should display correctly.
  35         self.expect("frame variable --show-types -- *my_foo_ptr", VARIABLES_DISPLAYED_CORRECTLY,
  36             substrs = ["(foo)", "(sub_foo)", "other_element = 3"])
  37
  38     def setUp(self):
  39         # Call super's setUp().
  40         TestBase.setUp(self)
  41         # Find the line number to break inside main().
  42         self.source = 'main.c'
  43         self.line = line_number(self.source, '// Set breakpoint 0 here.')
  44         self.shlib_names = ["foo"]
  45
  46     def common_setup(self):
  47         # Run in synchronous mode
  48         self.dbg.SetAsync(False)
  49
  50         # Create a target by the debugger.
  51         target = self.dbg.CreateTarget("a.out")
  52         self.assertTrue(target, VALID_TARGET)
  53
  54         # Break inside the foo function which takes a bar_ptr argument.
  55         lldbutil.run_break_set_by_file_and_line (self, self.source, self.line, num_expected_locations=1, loc_exact=True)
  56
  57         # Register our shared libraries for remote targets so they get automatically uploaded
  58         environment = self.registerSharedLibrariesWithTarget(target, self.shlib_names)
  59
  60         # Now launch the process, and do not stop at entry point.
  61         process = target.LaunchSimple (None, environment, self.get_process_working_directory())
  62         self.assertTrue(process, PROCESS_IS_VALID)
  63
  64         # The stop reason of the thread should be breakpoint.
  65         self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
  66             substrs = ['stopped',
  67                        'stop reason = breakpoint'])
  68
  69         # The breakpoint should have a hit count of 1.
  70         self.expect("breakpoint list -f", BREAKPOINT_HIT_ONCE,
  71             substrs = [' resolved, hit count = 1'])