libcxx/test/configs/apple-libc++-shared.cfg.in

   1 # Testing configuration for Apple's system libc++.
   2 #
   3 # This configuration differs from a normal LLVM shared library configuration in
   4 # that we must use DYLD_LIBRARY_PATH to run the tests against the just-built library,
   5 # since Apple's libc++ has an absolute install_name.
   6 #
   7 # We also don't use a per-target include directory layout, so we have only one
   8 # include directory for the libc++ headers.
   9 #
  10 # Finally, we also link against an artificial shims library that provides
  11 # the functionality necessary for the upstream libc++ to be usable in place
  12 # of a system-provided libc++. Without that, attempting to replace the system
  13 # libc++ with DYLD_LIBRARY_PATH would result in missing symbols and other similar
  14 # issues since the upstream libc++ does not contain all the symbols provided by
  15 # the system library.
  16
  17 lit_config.load_config(config, '@CMAKE_CURRENT_BINARY_DIR@/cmake-bridge.cfg')
  18
  19 import os, site
  20 site.addsitedir(os.path.join('@LIBCXX_SOURCE_DIR@', 'utils'))
  21 import libcxx.test.params, libcxx.test.config, libcxx.test.dsl
  22 ADDITIONAL_PARAMETERS = [
  23     libcxx.test.dsl.Parameter(name='apple_system_shims', type=str,
  24         actions=lambda path: [libcxx.test.dsl.AddSubstitution('%{apple-system-shims}', path)],
  25         help="""
  26         Path to a pre-built object file or static archive that contains shims necessary to
  27         allow replacing the system libc++ by the just-built one.
  28         """),
  29 ]
  30
  31 config.substitutions.append(('%{flags}',
  32     '-isysroot {}'.format('@CMAKE_OSX_SYSROOT@') if '@CMAKE_OSX_SYSROOT@' else ''
  33 ))
  34 config.substitutions.append(('%{compile_flags}',
  35     '-nostdinc++ -I %{include-dir} -I %{libcxx-dir}/test/support'
  36 ))
  37 config.substitutions.append(('%{link_flags}',
  38     '-nostdlib++ -L %{lib-dir} -lc++ %{apple-system-shims}'
  39 ))
  40 config.substitutions.append(('%{exec}',
  41     '%{executor} --execdir %T --env DYLD_LIBRARY_PATH=%{lib-dir} -- '
  42 ))
  43
  44 config.stdlib = 'apple-libc++'
  45
  46 libcxx.test.config.configure(
  47     libcxx.test.params.DEFAULT_PARAMETERS + ADDITIONAL_PARAMETERS,
  48     libcxx.test.features.DEFAULT_FEATURES,
  49     config,
  50     lit_config
  51 )