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diff --git a/third_party/toolchains/preconfig/ubuntu14.04/gcc-nvcc/clang/bin/crosstool_wrapper_driver_is_not_gcc b/third_party/toolchains/preconfig/ubuntu14.04/gcc-nvcc/clang/bin/crosstool_wrapper_driver_is_not_gcc
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+++ b/third_party/toolchains/preconfig/ubuntu14.04/gcc-nvcc/clang/bin/crosstool_wrapper_driver_is_not_gcc
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+#!/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.
+
+SYNOPSIS:
+ crosstool_wrapper_is_not_gcc [options passed in by cc_library()
+ or cc_binary() rule]
+
+DESCRIPTION:
+ This script is expected to be called by the cc_library() or cc_binary() bazel
+ rules. When the option "-x cuda" is present in the list of arguments passed
+ to this script, it invokes the nvcc CUDA compiler. Most arguments are passed
+ as is as a string to --compiler-options of nvcc. When "-x cuda" is not
+ present, this wrapper invokes hybrid_driver_is_not_gcc with the input
+ arguments as is.
+
+NOTES:
+ Changes to the contents of this file must be propagated from
+ //third_party/gpus/crosstool/crosstool_wrapper_is_not_gcc to
+ //third_party/gpus/crosstool/v*/*/clang/bin/crosstool_wrapper_is_not_gcc
+"""
+
+from __future__ import print_function
+
+__author__ = 'keveman@google.com (Manjunath Kudlur)'
+
+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'
+PREFIX_DIR = os.path.dirname(GCC_HOST_COMPILER_PATH)
+NVCC_VERSION = '9.0'
+
+def Log(s):
+ print('gpus/crosstool: {0}'.format(s))
+
+
+def GetOptionValue(argv, option):
+ """Extract the list of values for option from the argv list.
+
+ Args:
+ argv: A list of strings, possibly the argv passed to main().
+ option: The option whose value to extract, without the leading '-'.
+
+ Returns:
+ 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).
+ """
+
+ parser = ArgumentParser()
+ parser.add_argument('-' + option, nargs='*', action='append')
+ args, _ = parser.parse_known_args(argv)
+ if not args or not vars(args)[option]:
+ return []
+ else:
+ return sum(vars(args)[option], [])
+
+
+def GetHostCompilerOptions(argv):
+ """Collect the -isystem, -iquote, and --sysroot option values from argv.
+
+ Args:
+ argv: A list of strings, possibly the argv passed to main().
+
+ Returns:
+ The string that can be used as the --compiler-options to nvcc.
+ """
+
+ parser = ArgumentParser()
+ parser.add_argument('-isystem', nargs='*', action='append')
+ parser.add_argument('-iquote', nargs='*', action='append')
+ parser.add_argument('--sysroot', nargs=1)
+ parser.add_argument('-g', nargs='*', action='append')
+ parser.add_argument('-fno-canonical-system-headers', action='store_true')
+
+ args, _ = parser.parse_known_args(argv)
+
+ opts = ''
+
+ if args.isystem:
+ opts += ' -isystem ' + ' -isystem '.join(sum(args.isystem, []))
+ if args.iquote:
+ opts += ' -iquote ' + ' -iquote '.join(sum(args.iquote, []))
+ if args.g:
+ opts += ' -g' + ' -g'.join(sum(args.g, []))
+ if args.fno_canonical_system_headers:
+ opts += ' -fno-canonical-system-headers'
+ if args.sysroot:
+ opts += ' --sysroot ' + args.sysroot[0]
+
+ return opts
+
+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:
+ The string that can be passed directly to nvcc.
+ """
+
+ parser = ArgumentParser()
+ parser.add_argument('-nvcc_options', nargs='*', action='append')
+
+ args, _ = parser.parse_known_args(argv)
+
+ if args.nvcc_options:
+ options = _update_options(sum(args.nvcc_options, []))
+ return ' '.join(['--'+a for a in options])
+ return ''
+
+
+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)
+ """
+
+ host_compiler_options = GetHostCompilerOptions(argv)
+ nvcc_compiler_options = GetNvccOptions(argv)
+ opt_option = GetOptionValue(argv, 'O')
+ m_options = GetOptionValue(argv, 'm')
+ m_options = ''.join([' -m' + m for m in m_options if m in ['32', '64']])
+ include_options = GetOptionValue(argv, 'I')
+ out_file = GetOptionValue(argv, 'o')
+ depfiles = GetOptionValue(argv, 'MF')
+ defines = GetOptionValue(argv, 'D')
+ defines = ''.join([' -D' + define for define in defines])
+ undefines = GetOptionValue(argv, 'U')
+ undefines = ''.join([' -U' + define for define in undefines])
+ std_options = GetOptionValue(argv, 'std')
+ # currently only c++11 is supported by Cuda 7.0 std argument
+ nvcc_allowed_std_options = ["c++11"]
+ std_options = ''.join([' -std=' + define
+ for define in std_options if define in nvcc_allowed_std_options])
+
+ # The list of source files get passed after the -c option. I don't know of
+ # any other reliable way to just get the list of source files to be compiled.
+ src_files = GetOptionValue(argv, 'c')
+
+ # Pass -w through from host to nvcc, but don't do anything fancier with
+ # warnings-related flags, since they're not necessarily the same across
+ # compilers.
+ warning_options = ' -w' if '-w' in argv else ''
+
+ if len(src_files) == 0:
+ return 1
+ if len(out_file) != 1:
+ return 1
+
+ opt = (' -O2' if (len(opt_option) > 0 and int(opt_option[0]) > 0)
+ else ' -g -G')
+
+ includes = (' -I ' + ' -I '.join(include_options)
+ if len(include_options) > 0
+ else '')
+
+ # Unfortunately, there are other options that have -c prefix too.
+ # So allowing only those look like C/C++ files.
+ src_files = [f for f in src_files if
+ re.search('\.cpp$|\.cc$|\.c$|\.cxx$|\.C$', f)]
+ srcs = ' '.join(src_files)
+ out = ' -o ' + out_file[0]
+
+ supported_cuda_compute_capabilities = [ "3.0" ]
+ nvccopts = '-D_FORCE_INLINES '
+ for capability in supported_cuda_compute_capabilities:
+ capability = capability.replace('.', '')
+ nvccopts += r'-gencode=arch=compute_%s,\"code=sm_%s,compute_%s\" ' % (
+ capability, capability, capability)
+ nvccopts += ' ' + nvcc_compiler_options
+ nvccopts += undefines
+ nvccopts += defines
+ nvccopts += std_options
+ nvccopts += m_options
+ nvccopts += warning_options
+
+ if depfiles:
+ # Generate the dependency file
+ depfile = depfiles[0]
+ cmd = (NVCC_PATH + ' ' + nvccopts +
+ ' --compiler-options "' + host_compiler_options + '"' +
+ ' --compiler-bindir=' + GCC_HOST_COMPILER_PATH +
+ ' -I .' +
+ ' -x cu ' + opt + includes + ' ' + srcs + ' -M -o ' + depfile)
+ if log: Log(cmd)
+ exit_status = os.system(cmd)
+ if exit_status != 0:
+ return exit_status
+
+ cmd = (NVCC_PATH + ' ' + nvccopts +
+ ' --compiler-options "' + host_compiler_options + ' -fPIC"' +
+ ' --compiler-bindir=' + GCC_HOST_COMPILER_PATH +
+ ' -I .' +
+ ' -x cu ' + opt + includes + ' -c ' + srcs + out)
+
+ # TODO(zhengxq): for some reason, 'gcc' needs this help to find 'as'.
+ # Need to investigate and fix.
+ cmd = 'PATH=' + PREFIX_DIR + ':$PATH ' + cmd
+ if log: Log(cmd)
+ return os.system(cmd)
+
+
+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'))]
+
+ return subprocess.call([CPU_COMPILER] + cpu_compiler_flags)
+
+if __name__ == '__main__':
+ sys.exit(main())