packages/Python/lldbsuite/support/gmodules.py

   1 from __future__ import absolute_import
   2 from __future__ import print_function
   3
   4 # System modules
   5 import os
   6 import re
   7
   8
   9 GMODULES_SUPPORT_MAP = {}
  10 GMODULES_HELP_REGEX = re.compile(r"\s-gmodules\s")
  11
  12
  13 def is_compiler_clang_with_gmodules(compiler_path):
  14     # Before computing the result, check if we already have it cached.
  15     if compiler_path in GMODULES_SUPPORT_MAP:
  16         return GMODULES_SUPPORT_MAP[compiler_path]
  17
  18     def _gmodules_supported_internal():
  19         compiler = os.path.basename(compiler_path)
  20         if "clang" not in compiler:
  21             return False
  22         else:
  23             # Check the compiler help for the -gmodules option.
  24             clang_help = os.popen("%s --help" % compiler_path).read()
  25             return GMODULES_HELP_REGEX.search(
  26                 clang_help, re.DOTALL) is not None
  27
  28     GMODULES_SUPPORT_MAP[compiler_path] = _gmodules_supported_internal()
  29     return GMODULES_SUPPORT_MAP[compiler_path]