src/llvm/projects/compiler-rt/lib/lit.common.cfg

   1 # -*- Python -*-
   2
   3 # Configuration file for 'lit' test runner.
   4 # This file contains common rules for various compiler-rt testsuites.
   5 # It is mostly copied from lit.cfg used by Clang.
   6 import os
   7 import platform
   8
   9 # Setup test format
  10 execute_external = (platform.system() != 'Windows'
  11                     or lit.getBashPath() not in [None, ""])
  12 config.test_format = lit.formats.ShTest(execute_external)
  13
  14 # Setup clang binary.
  15 clang_path = getattr(config, 'clang', None)
  16 if (not clang_path) or (not os.path.exists(clang_path)):
  17   lit.fatal("Can't find Clang on path %r" % clang_path)
  18 if not lit.quiet:
  19   lit.note("using clang: %r" % clang_path)
  20
  21 # Clear some environment variables that might affect Clang.
  22 possibly_dangerous_env_vars = ['COMPILER_PATH', 'RC_DEBUG_OPTIONS',
  23                                'CINDEXTEST_PREAMBLE_FILE', 'LIBRARY_PATH',
  24                                'CPATH', 'C_INCLUDE_PATH', 'CPLUS_INCLUDE_PATH',
  25                                'OBJC_INCLUDE_PATH', 'OBJCPLUS_INCLUDE_PATH',
  26                                'LIBCLANG_TIMING', 'LIBCLANG_OBJTRACKING',
  27                                'LIBCLANG_LOGGING', 'LIBCLANG_BGPRIO_INDEX',
  28                                'LIBCLANG_BGPRIO_EDIT', 'LIBCLANG_NOTHREADS',
  29                                'LIBCLANG_RESOURCE_USAGE',
  30                                'LIBCLANG_CODE_COMPLETION_LOGGING']
  31 # Clang/Win32 may refer to %INCLUDE%. vsvarsall.bat sets it.
  32 if platform.system() != 'Windows':
  33     possibly_dangerous_env_vars.append('INCLUDE')
  34 for name in possibly_dangerous_env_vars:
  35   if name in config.environment:
  36     del config.environment[name]
  37
  38 # Tweak PATH to include llvm tools dir.
  39 llvm_tools_dir = getattr(config, 'llvm_tools_dir', None)
  40 if (not llvm_tools_dir) or (not os.path.exists(llvm_tools_dir)):
  41   lit.fatal("Invalid llvm_tools_dir config attribute: %r" % llvm_tools_dir)
  42 path = os.path.pathsep.join((llvm_tools_dir, config.environment['PATH']))
  43 config.environment['PATH'] = path
  44
  45 # Define %clang and %clangxx substitutions to use in test RUN lines.
  46 config.substitutions.append( ("%clang ", (" " + config.clang + " ")) )
  47 config.substitutions.append( ("%clangxx ", (" " + config.clang +
  48                               " -ccc-clang-cxx -ccc-cxx ")) )
  49
  50 # Use ugly construction to explicitly prohibit "clang", "clang++" etc.
  51 # in RUN lines.
  52 config.substitutions.append(
  53     (' clang', """\n\n*** Do not use 'clangXXX' in tests,
  54      instead define '%clangXXX' substitution in lit config. ***\n\n""") )