kse-01/tensorflow/third_party/gpus/check_cuda_libs.py
github-classroom[bot] 1122cdd8b0
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2023-10-09 11:37:31 +00:00

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Python

# Copyright 2020 The TensorFlow Authors. All Rights Reserved.
#
# 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.
# ==============================================================================
"""Verifies that a list of libraries is installed on the system.
Takes a a list of arguments with every two subsequent arguments being a logical
tuple of (path, check_soname). The path to the library and either True or False
to indicate whether to check the soname field on the shared library.
Example Usage:
./check_cuda_libs.py /path/to/lib1.so True /path/to/lib2.so False
"""
import os
import os.path
import platform
import subprocess
import sys
# pylint: disable=g-import-not-at-top,g-importing-member
try:
from shutil import which
except ImportError:
from distutils.spawn import find_executable as which
# pylint: enable=g-import-not-at-top,g-importing-member
class ConfigError(Exception):
pass
def _is_windows():
return platform.system() == "Windows"
def check_cuda_lib(path, check_soname=True):
"""Tests if a library exists on disk and whether its soname matches the filename.
Args:
path: the path to the library.
check_soname: whether to check the soname as well.
Raises:
ConfigError: If the library does not exist or if its soname does not match
the filename.
"""
if not os.path.isfile(path):
raise ConfigError("No library found under: " + path)
objdump = which("objdump")
if check_soname and objdump is not None and not _is_windows():
# Decode is necessary as in py3 the return type changed from str to bytes
output = subprocess.check_output([objdump, "-p", path]).decode("utf-8")
output = [line for line in output.splitlines() if "SONAME" in line]
sonames = [line.strip().split(" ")[-1] for line in output]
if not any(soname == os.path.basename(path) for soname in sonames):
raise ConfigError("None of the libraries match their SONAME: " + path)
def main():
try:
args = [argv for argv in sys.argv[1:]]
if len(args) % 2 == 1:
raise ConfigError("Expected even number of arguments")
checked_paths = []
for i in range(0, len(args), 2):
path = args[i]
check_cuda_lib(path, check_soname=args[i + 1] == "True")
checked_paths.append(path)
# pylint: disable=superfluous-parens
print(os.linesep.join(checked_paths))
# pylint: enable=superfluous-parens
except ConfigError as e:
sys.stderr.write(str(e))
sys.exit(1)
if __name__ == "__main__":
main()