lldb/packages/Python/lldbsuite/support/gmodules.py

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