diff options
Diffstat (limited to 'third_party/toolchains/preconfig/ubuntu14.04/gcc-nvcc/windows/msvc_wrapper_for_nvcc.py')
-rwxr-xr-x | third_party/toolchains/preconfig/ubuntu14.04/gcc-nvcc/windows/msvc_wrapper_for_nvcc.py | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/third_party/toolchains/preconfig/ubuntu14.04/gcc-nvcc/windows/msvc_wrapper_for_nvcc.py b/third_party/toolchains/preconfig/ubuntu14.04/gcc-nvcc/windows/msvc_wrapper_for_nvcc.py new file mode 100755 index 0000000000..859b3196d5 --- /dev/null +++ b/third_party/toolchains/preconfig/ubuntu14.04/gcc-nvcc/windows/msvc_wrapper_for_nvcc.py @@ -0,0 +1,192 @@ +#!/usr/bin/env python +# Copyright 2015 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. +# ============================================================================== + +"""Crosstool wrapper for compiling CUDA programs with nvcc on Windows. + +DESCRIPTION: + This script is the Windows version of //third_party/gpus/crosstool/crosstool_wrapper_is_not_gcc +""" + +from __future__ import print_function + +from argparse import ArgumentParser +import os +import subprocess +import re +import sys +import pipes + +# Template values set by cuda_autoconf. +CPU_COMPILER = ('/usr/bin/gcc') +GCC_HOST_COMPILER_PATH = ('/usr/bin/gcc') + +NVCC_PATH = '/usr/local/cuda-9.0/bin/nvcc' +NVCC_VERSION = '9.0' +NVCC_TEMP_DIR = "C:\\Windows\\Temp\\nvcc_inter_files_tmp_dir" +supported_cuda_compute_capabilities = [ "3.0" ] + +def Log(s): + print('gpus/crosstool: {0}'.format(s)) + + +def GetOptionValue(argv, option): + """Extract the list of values for option from options. + + Args: + option: The option whose value to extract, without the leading '/'. + + Returns: + 1. A list of values, either directly following the option, + (eg., /opt val1 val2) or values collected from multiple occurrences of + the option (eg., /opt val1 /opt val2). + 2. The leftover options. + """ + + parser = ArgumentParser(prefix_chars='/') + parser.add_argument('/' + option, nargs='*', action='append') + args, leftover = parser.parse_known_args(argv) + if args and vars(args)[option]: + return (sum(vars(args)[option], []), leftover) + return ([], leftover) + +def _update_options(nvcc_options): + if NVCC_VERSION in ("7.0",): + return nvcc_options + + update_options = { "relaxed-constexpr" : "expt-relaxed-constexpr" } + return [ update_options[opt] if opt in update_options else opt + for opt in nvcc_options ] + +def GetNvccOptions(argv): + """Collect the -nvcc_options values from argv. + + Args: + argv: A list of strings, possibly the argv passed to main(). + + Returns: + 1. The string that can be passed directly to nvcc. + 2. The leftover options. + """ + + parser = ArgumentParser() + parser.add_argument('-nvcc_options', nargs='*', action='append') + + args, leftover = parser.parse_known_args(argv) + + if args.nvcc_options: + options = _update_options(sum(args.nvcc_options, [])) + return (['--' + a for a in options], leftover) + return ([], leftover) + + +def InvokeNvcc(argv, log=False): + """Call nvcc with arguments assembled from argv. + + Args: + argv: A list of strings, possibly the argv passed to main(). + log: True if logging is requested. + + Returns: + The return value of calling os.system('nvcc ' + args) + """ + + src_files = [f for f in argv if + re.search('\.cpp$|\.cc$|\.c$|\.cxx$|\.C$', f)] + if len(src_files) == 0: + raise Error('No source files found for cuda compilation.') + + out_file = [ f for f in argv if f.startswith('/Fo') ] + if len(out_file) != 1: + raise Error('Please sepecify exactly one output file for cuda compilation.') + out = ['-o', out_file[0][len('/Fo'):]] + + nvcc_compiler_options, argv = GetNvccOptions(argv) + + opt_option, argv = GetOptionValue(argv, 'O') + opt = ['-g', '-G'] + if (len(opt_option) > 0 and opt_option[0] != 'd'): + opt = ['-O2'] + + include_options, argv = GetOptionValue(argv, 'I') + includes = ["-I " + include for include in include_options] + + defines, argv = GetOptionValue(argv, 'D') + defines = ['-D' + define for define in defines] + + undefines, argv = GetOptionValue(argv, 'U') + undefines = ['-U' + define for define in undefines] + + # The rest of the unrecongized options should be passed to host compiler + host_compiler_options = [option for option in argv if option not in (src_files + out_file)] + + m_options = ["-m64"] + + nvccopts = ['-D_FORCE_INLINES'] + for capability in supported_cuda_compute_capabilities: + capability = capability.replace('.', '') + nvccopts += [r'-gencode=arch=compute_%s,"code=sm_%s,compute_%s"' % ( + capability, capability, capability)] + nvccopts += nvcc_compiler_options + nvccopts += undefines + nvccopts += defines + nvccopts += m_options + nvccopts += ['--compiler-options="' + " ".join(host_compiler_options) + '"'] + nvccopts += ['-x', 'cu'] + opt + includes + out + ['-c'] + src_files + # If we don't specify --keep-dir, nvcc will generate intermediate files under TEMP + # Put them under NVCC_TEMP_DIR instead, then Bazel can ignore files under NVCC_TEMP_DIR during dependency check + # http://docs.nvidia.com/cuda/cuda-compiler-driver-nvcc/index.html#options-for-guiding-compiler-driver + # Different actions are sharing NVCC_TEMP_DIR, so we cannot remove it if the directory already exists. + if os.path.isfile(NVCC_TEMP_DIR): + os.remove(NVCC_TEMP_DIR) + if not os.path.exists(NVCC_TEMP_DIR): + os.makedirs(NVCC_TEMP_DIR) + nvccopts += ['--keep', '--keep-dir', NVCC_TEMP_DIR] + cmd = [NVCC_PATH] + nvccopts + if log: + Log(cmd) + proc = subprocess.Popen(cmd, + stdout=sys.stdout, + stderr=sys.stderr, + env=os.environ.copy(), + shell=True) + proc.wait() + return proc.returncode + +def main(): + parser = ArgumentParser() + parser.add_argument('-x', nargs=1) + parser.add_argument('--cuda_log', action='store_true') + args, leftover = parser.parse_known_args(sys.argv[1:]) + + if args.x and args.x[0] == 'cuda': + if args.cuda_log: Log('-x cuda') + leftover = [pipes.quote(s) for s in leftover] + if args.cuda_log: Log('using nvcc') + return InvokeNvcc(leftover, log=args.cuda_log) + + # Strip our flags before passing through to the CPU compiler for files which + # are not -x cuda. We can't just pass 'leftover' because it also strips -x. + # We not only want to pass -x to the CPU compiler, but also keep it in its + # relative location in the argv list (the compiler is actually sensitive to + # this). + cpu_compiler_flags = [flag for flag in sys.argv[1:] + if not flag.startswith(('--cuda_log')) + and not flag.startswith(('-nvcc_options'))] + + return subprocess.call([CPU_COMPILER] + cpu_compiler_flags) + +if __name__ == '__main__': + sys.exit(main()) |