r315627 - [lit] Raise the logic for enabling clang & lld substitutions to llvm.

Bruno Cardoso Lopes via cfe-commits cfe-commits at lists.llvm.org
Fri Oct 13 10:13:19 PDT 2017


Hi Zachary,

I reverted this in r315712, since it's making one of our bots red
since yesterday (more explanations in the commit):
http://green.lab.llvm.org/green/job/clang-stage1-configure-RA

Cheers,

On Thu, Oct 12, 2017 at 2:56 PM, Zachary Turner via cfe-commits
<cfe-commits at lists.llvm.org> wrote:
> Author: zturner
> Date: Thu Oct 12 14:56:05 2017
> New Revision: 315627
>
> URL: http://llvm.org/viewvc/llvm-project?rev=315627&view=rev
> Log:
> [lit] Raise the logic for enabling clang & lld substitutions to llvm.
>
> This paves the way for other projects which might /use/ clang or
> lld but not necessarily need to the full set of functionality
> available to clang and lld tests to be able to have a basic set
> of substitutions that allow a project to run the clang or lld
> executables.
>
> Modified:
>     cfe/trunk/test/lit.cfg.py
>
> Modified: cfe/trunk/test/lit.cfg.py
> URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/lit.cfg.py?rev=315627&r1=315626&r2=315627&view=diff
> ==============================================================================
> --- cfe/trunk/test/lit.cfg.py (original)
> +++ cfe/trunk/test/lit.cfg.py Thu Oct 12 14:56:05 2017
> @@ -39,162 +39,43 @@ config.test_source_root = os.path.dirnam
>  # test_exec_root: The root path where tests should be run.
>  config.test_exec_root = os.path.join(config.clang_obj_root, 'test')
>
> -# Clear some environment variables that might affect Clang.
> -#
> -# This first set of vars are read by Clang, but shouldn't affect tests
> -# that aren't specifically looking for these features, or are required
> -# simply to run the tests at all.
> -#
> -# FIXME: Should we have a tool that enforces this?
> -
> -# safe_env_vars = ('TMPDIR', 'TEMP', 'TMP', 'USERPROFILE', 'PWD',
> -#                  'MACOSX_DEPLOYMENT_TARGET', 'IPHONEOS_DEPLOYMENT_TARGET',
> -#                  'VCINSTALLDIR', 'VC100COMNTOOLS', 'VC90COMNTOOLS',
> -#                  'VC80COMNTOOLS')
> -possibly_dangerous_env_vars = ['COMPILER_PATH', 'RC_DEBUG_OPTIONS',
> -                               'CINDEXTEST_PREAMBLE_FILE', 'LIBRARY_PATH',
> -                               'CPATH', 'C_INCLUDE_PATH', 'CPLUS_INCLUDE_PATH',
> -                               'OBJC_INCLUDE_PATH', 'OBJCPLUS_INCLUDE_PATH',
> -                               'LIBCLANG_TIMING', 'LIBCLANG_OBJTRACKING',
> -                               'LIBCLANG_LOGGING', 'LIBCLANG_BGPRIO_INDEX',
> -                               'LIBCLANG_BGPRIO_EDIT', 'LIBCLANG_NOTHREADS',
> -                               'LIBCLANG_RESOURCE_USAGE',
> -                               'LIBCLANG_CODE_COMPLETION_LOGGING']
> -# Clang/Win32 may refer to %INCLUDE%. vsvarsall.bat sets it.
> -if platform.system() != 'Windows':
> -    possibly_dangerous_env_vars.append('INCLUDE')
> -
> -llvm_config.clear_environment(possibly_dangerous_env_vars)
> -
> -# Tweak the PATH to include the tools dir and the scripts dir.
> -llvm_config.with_environment(
> -    'PATH', [config.llvm_tools_dir, config.clang_tools_dir], append_path=True)
> +llvm_config.use_default_substitutions()
>
> -llvm_config.with_environment('LD_LIBRARY_PATH', [
> -                             config.llvm_shlib_dir, config.llvm_libs_dir], append_path=True)
> +llvm_config.use_clang()
>
>  # Propagate path to symbolizer for ASan/MSan.
>  llvm_config.with_system_environment(
>      ['ASAN_SYMBOLIZER_PATH', 'MSAN_SYMBOLIZER_PATH'])
>
> -llvm_config.use_default_substitutions()
> -
> -# Discover the 'clang' and 'clangcc' to use.
> -
> -
> -def inferClang(PATH):
> -    # Determine which clang to use.
> -    clang = os.getenv('CLANG')
> -
> -    # If the user set clang in the environment, definitely use that and don't
> -    # try to validate.
> -    if clang:
> -        return clang
> -
> -    # Otherwise look in the path.
> -    clang = lit.util.which('clang', PATH)
> -
> -    if not clang:
> -        lit_config.fatal("couldn't find 'clang' program, try setting "
> -                         'CLANG in your environment')
> -
> -    return clang
> -
> -
> -config.clang = inferClang(config.environment['PATH']).replace('\\', '/')
> -if not lit_config.quiet:
> -    lit_config.note('using clang: %r' % config.clang)
> -
> -# Plugins (loadable modules)
> -# TODO: This should be supplied by Makefile or autoconf.
> -if sys.platform in ['win32', 'cygwin']:
> -    has_plugins = config.enable_shared
> -else:
> -    has_plugins = True
> -
> -if has_plugins and config.llvm_plugin_ext:
> -    config.available_features.add('plugins')
> -
> -config.substitutions.append(('%llvmshlibdir', config.llvm_shlib_dir))
> -config.substitutions.append(('%pluginext', config.llvm_plugin_ext))
>  config.substitutions.append(('%PATH%', config.environment['PATH']))
>
> -if config.clang_examples:
> -    config.available_features.add('examples')
>
> -builtin_include_dir = llvm_config.get_clang_builtin_include_dir(config.clang)
> +# For each occurrence of a clang tool name, replace it with the full path to
> +# the build directory holding that tool.  We explicitly specify the directories
> +# to search to ensure that we get the tools just built and not some random
> +# tools that might happen to be in the user's PATH.
> +tool_dirs = [config.clang_tools_dir, config.llvm_tools_dir]
>
>  tools = [
> -    # By specifying %clang_cc1 as part of the substitution, this substitution
> -    # relies on repeated substitution, so must come before %clang_cc1.
> -    ToolSubst('%clang_analyze_cc1', command='%clang_cc1',
> -              extra_args=['-analyze', '%analyze']),
> -    ToolSubst('%clang_cc1', command=config.clang, extra_args=[
> -              '-cc1', '-internal-isystem', builtin_include_dir, '-nostdsysteminc']),
> -    ToolSubst('%clang_cpp', command=config.clang,
> -              extra_args=['--driver-mode=cpp']),
> -    ToolSubst('%clang_cl', command=config.clang,
> -              extra_args=['--driver-mode=cl']),
> -    ToolSubst('%clangxx', command=config.clang,
> -              extra_args=['--driver-mode=g++']),
> +    'c-index-test', 'clang-check', 'clang-diff', 'clang-format', 'opt',
>      ToolSubst('%clang_func_map', command=FindTool(
>          'clang-func-mapping'), unresolved='ignore'),
> -    ToolSubst('%clang', command=config.clang),
> -    ToolSubst('%test_debuginfo', command=os.path.join(
> -        config.llvm_src_root, 'utils', 'test_debuginfo.pl')),
> -    'c-index-test', 'clang-check', 'clang-diff', 'clang-format', 'opt']
> +]
>
>  if config.clang_examples:
>      tools.append('clang-interpreter')
>
> -# For each occurrence of a clang tool name, replace it with the full path to
> -# the build directory holding that tool.  We explicitly specify the directories
> -# to search to ensure that we get the tools just built and not some random
> -# tools that might happen to be in the user's PATH.
> -tool_dirs = [config.clang_tools_dir, config.llvm_tools_dir]
> -
>  llvm_config.add_tool_substitutions(tools, tool_dirs)
>
> -# FIXME: Find nicer way to prohibit this.
> -config.substitutions.append(
> -    (' clang ', """*** Do not use 'clang' in tests, use '%clang'. ***"""))
> -config.substitutions.append(
> -    (' clang\+\+ ', """*** Do not use 'clang++' in tests, use '%clangxx'. ***"""))
> -config.substitutions.append(
> -    (' clang-cc ',
> -     """*** Do not use 'clang-cc' in tests, use '%clang_cc1'. ***"""))
> -config.substitutions.append(
> -    (' clang -cc1 -analyze ',
> -     """*** Do not use 'clang -cc1 -analyze' in tests, use '%clang_analyze_cc1'. ***"""))
> -config.substitutions.append(
> -    (' clang -cc1 ',
> -     """*** Do not use 'clang -cc1' in tests, use '%clang_cc1'. ***"""))
> -config.substitutions.append(
> -    (' %clang-cc1 ',
> -     """*** invalid substitution, use '%clang_cc1'. ***"""))
> -config.substitutions.append(
> -    (' %clang-cpp ',
> -     """*** invalid substitution, use '%clang_cpp'. ***"""))
> -config.substitutions.append(
> -    (' %clang-cl ',
> -     """*** invalid substitution, use '%clang_cl'. ***"""))
> -
> -config.substitutions.append(('%itanium_abi_triple',
> -                             llvm_config.make_itanium_abi_triple(config.target_triple)))
> -config.substitutions.append(('%ms_abi_triple',
> -                             llvm_config.make_msabi_triple(config.target_triple)))
> -config.substitutions.append(('%resource_dir', builtin_include_dir))
> -
> -# The host triple might not be set, at least if we're compiling clang from
> -# an already installed llvm.
> -if config.host_triple and config.host_triple != '@LLVM_HOST_TRIPLE@':
> -    config.substitutions.append(('%target_itanium_abi_host_triple',
> -                                 '--target=%s' % llvm_config.make_itanium_abi_triple(config.host_triple)))
> +# Plugins (loadable modules)
> +# TODO: This should be supplied by Makefile or autoconf.
> +if sys.platform in ['win32', 'cygwin']:
> +    has_plugins = config.enable_shared
>  else:
> -    config.substitutions.append(('%target_itanium_abi_host_triple', ''))
> +    has_plugins = True
>
> -config.substitutions.append(
> -    ('%src_include_dir', config.clang_src_dir + '/include'))
> +if has_plugins and config.llvm_plugin_ext:
> +    config.available_features.add('plugins')
>
>  # Set available features we allow tests to conditionalize on.
>  #
> @@ -227,6 +108,8 @@ if platform.system() not in ['Darwin', '
>      config.available_features.add('libgcc')
>
>  # Case-insensitive file system
> +
> +
>  def is_filesystem_case_insensitive():
>      handle, path = tempfile.mkstemp(
>          prefix='case-test', dir=config.test_exec_root)
>
>
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-- 
Bruno Cardoso Lopes
http://www.brunocardoso.cc


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