Home | History | Annotate | Download | only in apple_types 
      1 """
      2 Test that clang produces the __apple accelerator tables, for example, __apple_types, correctly.
      3 """
      4 
      5 import os, time
      6 import unittest2
      7 import lldb
      8 from lldbtest import *
      9 from lldbutil import symbol_type_to_str
     10 
     11 class AppleTypesTestCase(TestBase):
     12 
     13     mydir = os.path.join("macosx", "debug-info", "apple_types")
     14 
     15     #rdar://problem/11166975
     16     @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
     17     def test_debug_info_for_apple_types(self):
     18         """Test that __apple_types section does get produced by clang."""
     19 
     20         if not self.getCompiler().endswith('clang'):
     21             self.skipTest("clang compiler only test")
     22 
     23         self.buildDefault()
     24         self.apple_types(dot_o=True)
     25 
     26     @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
     27     def test_debug_info_for_apple_types_dsym(self):
     28         """Test that __apple_types section does get produced by dsymutil.
     29            This is supposed to succeed even with rdar://problem/11166975."""
     30 
     31         if not self.getCompiler().endswith('clang'):
     32             self.skipTest("clang compiler only test")
     33 
     34         self.buildDsym()
     35         self.apple_types(dot_o=False)
     36 
     37     def apple_types(self, dot_o):
     38         """Test that __apple_types section does get produced by clang."""
     39         if dot_o:
     40             exe = os.path.join(os.getcwd(), "main.o")
     41         else:
     42             exe = os.path.join(os.getcwd(), "a.out.dSYM/Contents/Resources/DWARF/a.out")
     43 
     44         target = self.dbg.CreateTarget(exe)
     45         self.assertTrue(target, VALID_TARGET)
     46         self.assertTrue(target.GetNumModules() > 0)
     47 
     48         # Hide stdout if not running with '-t' option.
     49         if not self.TraceOn():
     50             self.HideStdout()
     51 
     52         print "Number of modules for the target: %d" % target.GetNumModules()
     53         for module in target.module_iter():
     54             print module
     55 
     56         # Get the executable module at index 0.
     57         exe_module = target.GetModuleAtIndex(0)
     58 
     59         dwarf_section = exe_module.FindSection("__DWARF")
     60         self.assertTrue(dwarf_section)
     61         print "__DWARF section:", dwarf_section
     62         print "Number of sub-sections: %d" % dwarf_section.GetNumSubSections()
     63         INDENT = ' ' * 4
     64         for subsec in dwarf_section:
     65             print INDENT + str(subsec)
     66 
     67         debug_str_sub_section = dwarf_section.FindSubSection("__debug_str")
     68         self.assertTrue(debug_str_sub_section)
     69         print "__debug_str sub-section:", debug_str_sub_section
     70 
     71         # Find our __apple_types section by name.
     72         apple_types_sub_section = dwarf_section.FindSubSection("__apple_types")
     73         self.assertTrue(apple_types_sub_section)
     74         print "__apple_types sub-section:", apple_types_sub_section
     75 
     76         # These other three all important subsections should also be present.
     77         self.assertTrue(dwarf_section.FindSubSection("__apple_names") and
     78                         dwarf_section.FindSubSection("__apple_namespac") and
     79                         dwarf_section.FindSubSection("__apple_objc"))
     80 
     81 
     82 if __name__ == '__main__':
     83     import atexit
     84     lldb.SBDebugger.Initialize()
     85     atexit.register(lambda: lldb.SBDebugger.Terminate())
     86     unittest2.main()
     87