# Copyright (C) 2017 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import os
import subprocess
import sys


def main():
  devnull = open(os.devnull, 'w')
  for clang in ('clang', 'clang-3.8', 'clang-3.5'):
    if subprocess.call(['which', clang], stdout=devnull, stderr=devnull) != 0:
      continue
    res = subprocess.check_output([clang, '-print-search-dirs'])
    for line in res.splitlines():
      if not line.startswith('libraries:'):
        continue
      libs = line.split('=', 1)[1].split(':')
      for lib in libs:
        if '/clang/' not in lib or not os.path.isdir(lib + '/lib'):
          continue
        print os.path.abspath(lib)
        print clang
        print clang.replace('clang', 'clang++')
        return 0
  print 'Could not find the LLVM lib dir'
  return 1


if __name__ == '__main__':
  sys.exit(main())

# Copyright (C) 2017 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import os
import subprocess
import sys


def main():
  devnull = open(os.devnull, 'w')
  for clang in ('clang', 'clang-3.8', 'clang-3.5'):
    if subprocess.call(['which', clang], stdout=devnull, stderr=devnull) != 0:
      continue
    res = subprocess.check_output([clang, '-print-search-dirs']).decode("utf-8")
    for line in res.splitlines():
      if not line.startswith('libraries:'):
        continue
      libs = line.split('=', 1)[1].split(':')
      for lib in libs:
        if '/clang/' not in lib or not os.path.isdir(lib + '/lib'):
          continue
        print(os.path.abspath(lib))
        print(clang)
        print(clang.replace('clang', 'clang++'))
        return 0
  print('Could not find the LLVM lib dir')
  return 1


if __name__ == '__main__':
  sys.exit(main())

Fix issue with finding llvm when using python3
gn: Fix issue with finding llvm when using python3

With python3, subprocess output is a byte sequence. This needs to be
decoded to string so that the string functions work. Fix it so we can
find LLVM when building perfetto.

Also fix 'print' operator which is a function in python3.

Bug: 147789115

Signed-off-by: Joel Fernandes <89f39a38232ac523c7644e47b6ca6563177e40b4@google.com>
Change-Id: I4ab9b3c248d471e7ab5a27559152a1954ca43108
