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 import unittest2
   7 import lldb
   8 from lldbsuite.test.lldbtest import *
   9 import lldbsuite.test.lldbutil as lldbutil
  10
  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(
  20                 "llvm.org/pr16214 -- clang emits partial DWARF for structures referenced via typedef")
  21
  22         self.build()
  23         self.common_setup()
  24
  25         # This should display correctly.
  26         self.expect(
  27             "expression --show-types -- *my_foo_ptr",
  28             VARIABLES_DISPLAYED_CORRECTLY,
  29             substrs=[
  30                 "(foo)",
  31                 "(sub_foo)",
  32                 "other_element = 3"])
  33
  34     @unittest2.expectedFailure("rdar://problem/10704639")
  35     def test_frame_variable(self):
  36         """Test that types work when defined in a shared library and forward-declared in the main executable"""
  37         self.build()
  38         self.common_setup()
  39
  40         # This should display correctly.
  41         self.expect(
  42             "frame variable --show-types -- *my_foo_ptr",
  43             VARIABLES_DISPLAYED_CORRECTLY,
  44             substrs=[
  45                 "(foo)",
  46                 "(sub_foo)",
  47                 "other_element = 3"])
  48
  49     def setUp(self):
  50         # Call super's setUp().
  51         TestBase.setUp(self)
  52         # Find the line number to break inside main().
  53         self.source = 'main.c'
  54         self.line = line_number(self.source, '// Set breakpoint 0 here.')
  55         self.shlib_names = ["foo"]
  56
  57     def common_setup(self):
  58         # Run in synchronous mode
  59         self.dbg.SetAsync(False)
  60
  61         # Create a target by the debugger.
  62         target = self.dbg.CreateTarget("a.out")
  63         self.assertTrue(target, VALID_TARGET)
  64
  65         # Break inside the foo function which takes a bar_ptr argument.
  66         lldbutil.run_break_set_by_file_and_line(
  67             self, self.source, self.line, num_expected_locations=1, loc_exact=True)
  68
  69         # Register our shared libraries for remote targets so they get
  70         # automatically uploaded
  71         environment = self.registerSharedLibrariesWithTarget(
  72             target, self.shlib_names)
  73
  74         # Now launch the process, and do not stop at entry point.
  75         process = target.LaunchSimple(
  76             None, environment, self.get_process_working_directory())
  77         self.assertTrue(process, PROCESS_IS_VALID)
  78
  79         # The stop reason of the thread should be breakpoint.
  80         self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
  81                     substrs=['stopped',
  82                              'stop reason = breakpoint'])
  83
  84         # The breakpoint should have a hit count of 1.
  85         self.expect("breakpoint list -f", BREAKPOINT_HIT_ONCE,
  86                     substrs=[' resolved, hit count = 1'])