compiler-rt/test/profile/Linux/lit.local.cfg.py

   1 import subprocess
   2
   3
   4 def getRoot(config):
   5     if not config.parent:
   6         return config
   7     return getRoot(config.parent)
   8
   9
  10 def is_gold_linker_available():
  11
  12     if not config.gold_executable:
  13         return False
  14     try:
  15         ld_cmd = subprocess.Popen(
  16             [config.gold_executable, "--help"], stdout=subprocess.PIPE
  17         )
  18         ld_out = ld_cmd.stdout.read().decode()
  19         ld_cmd.wait()
  20     except:
  21         return False
  22
  23     if not "-plugin" in ld_out:
  24         return False
  25
  26     # config.clang is not guaranteed to be just the executable!
  27     clang_cmd = subprocess.Popen(
  28         " ".join([config.clang, "-fuse-ld=gold", "-xc", "-"]),
  29         shell=True,
  30         universal_newlines=True,
  31         stdin=subprocess.PIPE,
  32         stdout=subprocess.PIPE,
  33         stderr=subprocess.PIPE,
  34     )
  35     clang_err = clang_cmd.communicate("int main() { return 0; }")[1]
  36
  37     if not "invalid linker" in clang_err:
  38         return True
  39
  40     return False
  41
  42
  43 root = getRoot(config)
  44
  45 if root.host_os not in ["Linux"] or not is_gold_linker_available():
  46     config.unsupported = True
  47
  48 if config.have_curl:
  49     config.available_features.add("curl")