packages/Python/lldbsuite/test/macosx/debug-info/apple_types/TestAppleTypesIsProduced.py

   1 """
   2 Test that clang produces the __apple accelerator tables, for example, __apple_types, correctly.
   3 """
   4
   5 from __future__ import print_function
   6
   7
   8
   9 import os, time
  10 import lldb
  11 from lldbsuite.test.decorators import *
  12 from lldbsuite.test.lldbtest import *
  13 from lldbsuite.test import lldbutil
  14 from lldbsuite.test.lldbutil import symbol_type_to_str
  15
  16 class AppleTypesTestCase(TestBase):
  17
  18     mydir = TestBase.compute_mydir(__file__)
  19
  20     #rdar://problem/11166975
  21     @skipUnlessDarwin
  22     def test_debug_info_for_apple_types(self):
  23         """Test that __apple_types section does get produced by clang."""
  24
  25         if not self.getCompiler().endswith('clang'):
  26             self.skipTest("clang compiler only test")
  27
  28         self.build()
  29         if self.debug_info == "dsym":
  30             exe = os.path.join(os.getcwd(), "a.out.dSYM/Contents/Resources/DWARF/a.out")
  31         else:
  32             exe = os.path.join(os.getcwd(), "main.o")
  33
  34         target = self.dbg.CreateTarget(exe)
  35         self.assertTrue(target, VALID_TARGET)
  36         self.assertTrue(target.GetNumModules() > 0)
  37
  38         # Hide stdout if not running with '-t' option.
  39         if not self.TraceOn():
  40             self.HideStdout()
  41
  42         print("Number of modules for the target: %d" % target.GetNumModules())
  43         for module in target.module_iter():
  44             print(module)
  45
  46         # Get the executable module at index 0.
  47         exe_module = target.GetModuleAtIndex(0)
  48
  49         dwarf_section = exe_module.FindSection("__DWARF")
  50         self.assertTrue(dwarf_section)
  51         print("__DWARF section:", dwarf_section)
  52         print("Number of sub-sections: %d" % dwarf_section.GetNumSubSections())
  53         INDENT = ' ' * 4
  54         for subsec in dwarf_section:
  55             print(INDENT + str(subsec))
  56
  57         debug_str_sub_section = dwarf_section.FindSubSection("__debug_str")
  58         self.assertTrue(debug_str_sub_section)
  59         print("__debug_str sub-section:", debug_str_sub_section)
  60
  61         # Find our __apple_types section by name.
  62         apple_types_sub_section = dwarf_section.FindSubSection("__apple_types")
  63         self.assertTrue(apple_types_sub_section)
  64         print("__apple_types sub-section:", apple_types_sub_section)
  65
  66         # These other three all important subsections should also be present.
  67         self.assertTrue(dwarf_section.FindSubSection("__apple_names") and
  68                         dwarf_section.FindSubSection("__apple_namespac") and
  69                         dwarf_section.FindSubSection("__apple_objc"))