experiments/STT-tensorflow
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This commit is contained in:
Justine Tunney 2018-01-23 09:51:19 -08:00 committed by Rasmus Munk Larsen
parent ab8f0b711f
commit 297ae45a07
6 changed files with 883 additions and 0 deletions

2
tensorflow/workspace.bzl
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@ -5,6 +5,7 @@ load("//third_party/mkl:build_defs.bzl", "mkl_repository")
load("//third_party/git:git_configure.bzl", "git_configure")
load("//third_party/py:python_configure.bzl", "python_configure")
load("//third_party/sycl:sycl_configure.bzl", "sycl_configure")
load("//third_party/toolchains/clang6:repo.bzl", "clang6_configure")
load("//third_party/toolchains/cpus/arm:arm_compiler_configure.bzl", "arm_compiler_configure")
load("//third_party:repo.bzl", "tf_http_archive")
load("@io_bazel_rules_closure//closure/private:java_import_external.bzl", "java_import_external")
@ -65,6 +66,7 @@ def tf_workspace(path_prefix="", tf_repo_name=""):
# files, in case the parsing of those build files depends on the bazel
# version we require here.
check_bazel_version_at_least("0.5.4")
clang6_configure(name="local_config_clang6")
cuda_configure(name="local_config_cuda")
git_configure(name="local_config_git")
sycl_configure(name="local_config_sycl")

1
third_party/toolchains/clang6/BUILD vendored Normal file
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@ -0,0 +1 @@
package(default_visibility = ["//visibility:public"])

587
third_party/toolchains/clang6/CROSSTOOL.tpl vendored Normal file
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@ -0,0 +1,587 @@
major_version: "v1"
minor_version: "llvm:6.0.0"
default_target_cpu: "k8"
default_toolchain {
cpu: "k8"
toolchain_identifier: "k8-clang-6.0-cxx-4.8-linux-gnu"
}
toolchain {
compiler: "clang6" # bazel build --compiler=clang6
target_cpu: "k8" # bazel build --cpu=k8
target_libc: "GLIBC_2.19" # bazel build --glibc=GLIBC_2.19
abi_libc_version: "2.19"
abi_version: "gcc-4.8-cxx11"
builtin_sysroot: ""
cc_target_os: "linux-gnu"
default_python_version: "python2.7"
dynamic_runtimes_filegroup: "dynamic-runtime-libs-k8"
host_system_name: "x86_64-unknown-linux-gnu"
needsPic: true
static_runtimes_filegroup: "static-runtime-libs-k8"
supports_embedded_runtimes: true
supports_fission: true
supports_gold_linker: true
supports_incremental_linker: true
supports_interface_shared_objects: true
supports_normalizing_ar: true
supports_start_end_lib: true
supports_thin_archives: true
target_system_name: "x86_64-unknown-linux-gnu"
toolchain_identifier: "k8-clang-6.0-cxx-4.8-linux-gnu"
tool_path { name: "ar" path: "%package(@local_config_clang6//clang6)%/llvm/bin/llvm-ar" }
tool_path { name: "as" path: "%package(@local_config_clang6//clang6)%/llvm/bin/llvm-as" }
tool_path { name: "compat-ld" path: "%package(@local_config_clang6//clang6)%/llvm/bin/ld.lld" }
tool_path { name: "cpp" path: "%package(@local_config_clang6//clang6)%/llvm/bin/llvm-cpp" }
tool_path { name: "dwp" path: "%package(@local_config_clang6//clang6)%/llvm/bin/llvm-dwp" }
tool_path { name: "gcc" path: "%package(@local_config_clang6//clang6)%/llvm/bin/clang" }
tool_path { name: "gcov" path: "%package(@local_config_clang6//clang6)%/llvm/bin/llvm-cov" }
tool_path { name: "ld" path: "%package(@local_config_clang6//clang6)%/llvm/bin/ld.lld" }
tool_path { name: "llvm-profdata" path: "%package(@local_config_clang6//clang6)%/llvm/bin/llvm-profdata" }
tool_path { name: "nm" path: "%package(@local_config_clang6//clang6)%/llvm/bin/llvm-nm" }
tool_path { name: "objcopy" path: "%package(@local_config_clang6//clang6)%/llvm/bin/llvm-objcopy" }
tool_path { name: "objdump" path: "%package(@local_config_clang6//clang6)%/sbin/objdump" }
tool_path { name: "strip" path: "%package(@local_config_clang6//clang6)%/sbin/strip" }
unfiltered_cxx_flag: "-no-canonical-prefixes"
# Make C++ compilation deterministic. Use linkstamping instead of these
# compiler symbols.
unfiltered_cxx_flag: "-Wno-builtin-macro-redefined"
unfiltered_cxx_flag: "-D__DATE__=\"redacted\""
unfiltered_cxx_flag: "-D__TIMESTAMP__=\"redacted\""
unfiltered_cxx_flag: "-D__TIME__=\"redacted\""
objcopy_embed_flag: "-I"
objcopy_embed_flag: "binary"
# This action_config makes features flags propagate
# to CC_FLAGS for genrules, and eventually skylark.
action_config {
action_name: "cc-flags-make-variable"
config_name: "cc-flags-make-variable"
}
# Security hardening on by default.
# Conservative choice; -D_FORTIFY_SOURCE=2 may be unsafe in some cases.
# We need to undef it before redefining it as some distributions now have
# it enabled by default.
compiler_flag: "-U_FORTIFY_SOURCE"
compiler_flag: "-D_FORTIFY_SOURCE=1"
compiler_flag: "-fstack-protector"
linker_flag: "-Wl,-z,relro,-z,now"
# This adds a little bit more durability to our Clang build.
#
# At the moment, this only only be needed for:
# - add_boringssl_s390x.patch: --Wa,--noexecstack
#
# Folks who do maintenance work on TF Bazel Clang should consider
# commenting out these lines, while doing that work, to gain a better
# understanding of what the intersection of support looks like between GCC
# and Clang. Please note that, unlike Blaze, Bazel does not support
# -Xclang-only / -Xgcc-only.
compiler_flag: "-Wno-unknown-warning-option"
compiler_flag: "-Wno-unused-command-line-argument"
compiler_flag: "-Wno-ignored-optimization-argument"
#### Common compiler options. ####
compiler_flag: "-D_REENTRANT"
compiler_flag: "-D__STDC_FORMAT_MACROS"
compiler_flag: "-DSUPPRESS_USE_FILE_OFFSET64"
compiler_flag: "-Wall"
compiler_flag: "-Wformat-security"
compiler_flag: "-Wframe-larger-than=16384"
compiler_flag: "-Wno-char-subscripts"
compiler_flag: "-Wno-error=deprecated-declarations"
compiler_flag: "-Wno-uninitialized"
compiler_flag: "-Wno-sign-compare"
compiler_flag: "-Wno-strict-overflow"
compiler_flag: "-Wno-unused-function"
compiler_flag: "-fdiagnostics-show-option"
compiler_flag: "-fmessage-length=0"
compiler_flag: "-fno-exceptions"
compiler_flag: "-fno-omit-frame-pointer"
compiler_flag: "-fno-strict-aliasing"
compiler_flag: "-fno-use-init-array"
compiler_flag: "-funsigned-char"
compiler_flag: "-gmlt"
cxx_flag: "-Wno-deprecated"
cxx_flag: "-Wno-invalid-offsetof" # Needed for protobuf code (2017-11-07)
cxx_flag: "-fshow-overloads=best"
compiler_flag: "-Wthread-safety-analysis"
# Python extensions unfortunately make this go wild.
compiler_flag: "-Wno-writable-strings"
# GCC's warning produces too many false positives:
cxx_flag: "-Woverloaded-virtual"
cxx_flag: "-Wnon-virtual-dtor"
# Enable coloring even if there's no attached terminal. Bazel removes the
# escape sequences if --nocolor is specified. This isn't supported by gcc
# on Ubuntu 14.04.
compiler_flag: "-fcolor-diagnostics"
# Disable some broken warnings from Clang.
compiler_flag: "-Wno-ambiguous-member-template"
compiler_flag: "-Wno-pointer-sign"
# These warnings have a low signal to noise ratio.
compiler_flag: "-Wno-reserved-user-defined-literal"
compiler_flag: "-Wno-return-type-c-linkage"
compiler_flag: "-Wno-invalid-source-encoding"
# Per default we switch off any layering related warnings.
compiler_flag: "-Wno-private-header"
# Clang-specific warnings that we explicitly enable for TensorFlow. Some of
# these aren't on by default, or under -Wall, or are subsets of warnings
# turned off above.
compiler_flag: "-Wfloat-overflow-conversion"
compiler_flag: "-Wfloat-zero-conversion"
compiler_flag: "-Wfor-loop-analysis"
compiler_flag: "-Wgnu-redeclared-enum"
compiler_flag: "-Winfinite-recursion"
compiler_flag: "-Wliteral-conversion"
compiler_flag: "-Wself-assign"
compiler_flag: "-Wstring-conversion"
compiler_flag: "-Wtautological-overlap-compare"
compiler_flag: "-Wunused-comparison"
compiler_flag: "-Wvla"
cxx_flag: "-Wdeprecated-increment-bool"
# Clang code-generation flags for performance optimization.
compiler_flag: "-faligned-allocation"
compiler_flag: "-fnew-alignment=8"
# Clang defaults to C99 while GCC defaults to C89. GCC plugins are written in
# C89 and don't have a BUILD rule we could add a copts flag to.
gcc_plugin_compiler_flag: "-std=gnu89"
compilation_mode_flags {
mode: FASTBUILD
}
compilation_mode_flags {
mode: DBG
compiler_flag: "-g"
}
compilation_mode_flags {
mode: OPT
compiler_flag: "-g0"
compiler_flag: "-fdebug-types-section"
compiler_flag: "-DNDEBUG"
compiler_flag: "-fno-split-dwarf-inlining"
compiler_flag: "-Os"
compiler_flag: "-fexperimental-new-pass-manager"
compiler_flag: "-fdebug-info-for-profiling"
compiler_flag: "-ffunction-sections"
compiler_flag: "-fdata-sections"
linker_flag: "-Wl,--gc-sections"
linker_flag: "-Wl,-z,relro,-z,now"
}
# Features indicating whether this is a host compile or not. Exactly one of
# these will be implicitly provided by blaze.
feature { name: "host" }
feature { name: "nonhost" }
# Features indicating which compiler will be used for code generation.
feature {
name: "llvm_codegen"
provides: "codegen"
enabled: true
}
# Features for compilation modes. Exactly one of these will be implicitly
# provided by blaze.
feature { name: "fastbuild" }
feature { name: "dbg" }
feature { name: "opt" }
# Features controlling the C++ language mode.
feature {
name: "c++11"
provides: "c++std"
flag_set {
action: "c++-compile"
action: "c++-header-parsing"
action: "c++-header-preprocessing"
action: "c++-module-compile"
action: "linkstamp-compile"
flag_group {
flag: "-nostdinc++"
flag: "-std=c++11"
flag: "-Wc++14-extensions"
flag: "-Wc++2a-extensions"
flag: "-Wno-binary-literal"
}
}
}
feature {
name: "c++14"
provides: "c++std"
flag_set {
action: "c++-compile"
action: "c++-header-parsing"
action: "c++-header-preprocessing"
action: "c++-module-compile"
action: "linkstamp-compile"
flag_group {
flag: "-nostdinc++"
flag: "-std=c++14"
flag: "-Wc++11-compat"
flag: "-Wno-c++11-compat-binary-literal"
flag: "-Wc++2a-extensions"
}
}
}
feature {
name: "c++17"
provides: "c++std"
flag_set {
action: "c++-compile"
action: "c++-header-parsing"
action: "c++-header-preprocessing"
action: "c++-module-compile"
action: "linkstamp-compile"
flag_group {
flag: "-nostdinc++"
flag: "-std=c++17"
flag: "-Wc++11-compat"
flag: "-Wno-c++11-compat-binary-literal"
flag: "-Wc++2a-extensions"
}
}
}
feature {
name: "c++2a"
provides: "c++std"
flag_set {
action: "c++-compile"
action: "c++-header-parsing"
action: "c++-header-preprocessing"
action: "c++-module-compile"
action: "linkstamp-compile"
flag_group {
flag: "-nostdinc++"
flag: "-std=c++2a"
flag: "-Wc++11-compat"
flag: "-Wno-c++11-compat-binary-literal"
}
}
}
feature {
name: "c++default"
enabled: true
flag_set {
# Provide the c++11 flags if no standard is selected
with_feature {
not_feature: "c++11"
not_feature: "c++14"
not_feature: "c++17"
not_feature: "c++2a"
}
action: "c++-compile"
action: "c++-header-parsing"
action: "c++-header-preprocessing"
action: "c++-module-compile"
action: "linkstamp-compile"
flag_group {
flag: "-nostdinc++"
flag: "-std=c++11"
flag: "-Wc++14-extensions"
flag: "-Wc++2a-extensions"
flag: "-Wno-binary-literal"
}
}
}
feature {
name: "use_compiler_rt"
requires { feature: "llvm_codegen" }
# TODO(saugustine): At the moment, "use_compiler_rt" also
# requires "linking_mode_flags { mode: FULLY_STATIC" ... },
# but that isn't a feature. We should probably convert it.
flag_set {
action: "c++-link"
action: "c++-link-interface-dynamic-library"
action: "c++-link-dynamic-library"
action: "c++-link-executable"
# "link" is a misnomer for these actions. They are really just
# invocations of ar.
#action: "c++-link-pic-static-library"
#action: "c++-link-static-library"
#action: "c++-link-alwayslink-static-library"
#action: "c++-link-pic-static-library"
#action: "c++-link-alwayslink-pic-static-library"
flag_group {
flag: "-rtlib=compiler-rt"
flag: "-lunwind"
}
}
}
feature {
name: "pie"
flag_set {
action: "assemble"
action: "preprocess-assemble"
action: "c-compile"
action: "c++-compile"
action: "c++-header-parsing"
action: "c++-header-preprocessing"
action: "c++-module-compile"
action: "c++-module-codegen"
action: "cc-flags-make-variable"
action: "lto-backend"
action: "linkstamp-compile"
flag_group {
flag: "-mpie-copy-relocations"
flag: "-fPIE"
}
}
flag_set {
action: "cc-flags-make-variable"
action: "c++-link-executable"
flag_group {
flag: "-pie"
}
}
}
# Pic must appear after pie, because pic may need to override pie, and blaze
# turns it on selectively. These don't interact with other options.
#
# TODO: In practice, normal vs pic vs pie is a ternary mode. We should
# implement it that way. This will require changes to blaze, which only
# calculates whether or not pic is needed, not pie.
#
# NOTE: Bazel might make this all a moot point.
feature {
name: "pic"
flag_set {
action: "assemble"
action: "preprocess-assemble"
action: "c-compile"
action: "c++-compile"
action: "c++-module-codegen"
action: "c++-module-compile"
action: "linkstamp-compile"
expand_if_all_available: "pic"
flag_group {
flag: "-fPIC"
}
}
}
feature {
name: "gold"
enabled: true
flag_set {
action: "c++-link-executable"
action: "c++-link-dynamic-library"
action: "c++-link-interface-dynamic-library"
flag_group {
expand_if_none_available: "lto"
flag: "-fuse-ld=gold"
}
}
}
# This is great if you want linking TensorFlow to take ten minutes.
feature {
name: "lto"
requires { feature: "nonhost" }
flag_set {
action: "c-compile"
action: "c++-compile"
flag_group {
flag: "-flto=thin"
}
}
flag_set {
action: "c++-link-executable"
action: "c++-link-dynamic-library"
action: "c++-link-interface-dynamic-library"
flag_group {
flag: "-flto=thin"
}
}
}
feature {
name: "parse_headers"
flag_set {
action: "c++-header-parsing"
flag_group {
flag: "-xc++-header"
flag: "-fsyntax-only"
}
}
}
feature {
name: "preprocess_headers"
flag_set {
action: "c++-header-preprocessing"
flag_group {
flag: "-xc++"
flag: "-E"
}
}
}
feature {
name: "per_object_debug_info"
flag_set {
action: "c-compile"
action: "c++-compile"
action: "c++-module-codegen"
action: "assemble"
action: "preprocess-assemble"
action: "lto-backend"
flag_group {
flag: "-gsplit-dwarf"
flag: "-ggnu-pubnames"
}
}
flag_set {
action: "c++-link-executable"
action: "c++-link-dynamic-library"
action: "c++-link-interface-dynamic-library"
flag_group {
expand_if_all_available: "is_using_fission"
flag: "-Wl,--gdb-index"
}
}
}
feature {
name: "xray"
requires {
feature: "llvm_codegen"
feature: "nonhost"
}
flag_set {
action: "c-compile"
action: "c++-compile"
action: "c++-header-parsing"
action: "c++-header-preprocessing"
action: "c++-module-compile"
action: "c++-link-interface-dynamic-library"
action: "c++-link-dynamic-library"
action: "c++-link-executable"
flag_group {
flag: "-fxray-instrument"
}
}
}
feature {
name: "minimal_ubsan"
requires { feature: "llvm_codegen" }
flag_set {
action: "c-compile"
action: "c++-compile"
action: "c++-header-parsing"
action: "c++-header-preprocessing"
action: "c++-module-compile"
action: "c++-module-codegen"
flag_group {
flag: "-fsanitize=return,returns-nonnull-attribute,vla-bound,unreachable,float-cast-overflow"
flag: "-fsanitize-trap=all"
flag: "-DUNDEFINED_BEHAVIOR_SANITIZER"
}
}
}
feature {
name: "minimal_ubsan_enabled_by_default"
requires {
feature: "llvm_codegen"
feature: "fastbuild"
}
enabled: true
implies: "minimal_ubsan"
}
cxx_builtin_include_directory: "%package(@local_config_clang6//clang6)%/llvm/lib/clang/6.0.0/include"
cxx_builtin_include_directory: "/usr/include"
unfiltered_cxx_flag: "-cxx-isystem"
unfiltered_cxx_flag: "/usr/include/c++/4.8"
unfiltered_cxx_flag: "-cxx-isystem"
unfiltered_cxx_flag: "/usr/include/x86_64-linux-gnu/c++/4.8"
unfiltered_cxx_flag: "-isystem"
unfiltered_cxx_flag: "%package(@local_config_clang6//clang6)%/llvm/lib/clang/6.0.0/include"
unfiltered_cxx_flag: "-isystem"
unfiltered_cxx_flag: "/usr/include/x86_64-linux-gnu"
unfiltered_cxx_flag: "-isystem"
unfiltered_cxx_flag: "/usr/include"
linker_flag: "-Wl,--build-id=md5"
linker_flag: "-Wl,--fatal-warnings"
linker_flag: "-Wl,--hash-style=gnu"
linker_flag: "-no-canonical-prefixes"
linker_flag: "--target=x86_64-unknown-linux-gnu"
linker_flag: "-L/usr/lib/gcc/x86_64-linux-gnu/4.8"
# This is the minimum x86 architecture TensorFlow supports.
compiler_flag: "-DARCH_K8"
compiler_flag: "-m64"
# These are for Linux.
ld_embed_flag: "-melf_x86_64"
linker_flag: "-Wl,--eh-frame-hdr"
linker_flag: "-Wl,-z,max-page-size=0x1000"
# Google never uses the stack like a heap, e.g. alloca(), because tcmalloc
# and jemalloc are so fast. However copts=["$(STACK_FRAME_UNLIMITED)"] can be
# specified when that can't be the case.
make_variable {
name: "STACK_FRAME_UNLIMITED"
value: "-Wframe-larger-than=100000000 -Wno-vla"
}
# These flags are for folks who build C/C++ code inside genrules.
make_variable {
name: "CC_FLAGS"
value: "-no-canonical-prefixes --target=x86_64-unknown-linux-gnu -fno-omit-frame-pointer -fno-tree-vrp -msse3"
}
feature {
name: "copts"
flag_set {
expand_if_all_available: "copts"
action: "assemble"
action: "preprocess-assemble"
action: "c-compile"
action: "c++-compile"
action: "c++-header-parsing"
action: "c++-header-preprocessing"
action: "c++-module-compile"
action: "c++-module-codegen"
action: "lto-backend"
flag_group {
iterate_over: "copts"
flag: "%{copts}"
}
}
}
# Please do not statically link libstdc++. This would probably lead to a lot
# of bloat since OpKernels need to use linkstatic=1 because b/27630669 and
# it could cause memory leaks since Python uses dlopen() on our libraries:
# https://stackoverflow.com/a/35015415
linker_flag: "-lstdc++"
linker_flag: "-lm"
linker_flag: "-lpthread"
linker_flag: "-l:/lib/x86_64-linux-gnu/libc-2.19.so"
}

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# TensorFlow Bazel Clang
This is a specialized toolchain that uses an old Debian with a new Clang that
can cross compile to any x86_64 microarchitecture. It's intended to build Linux
binaries that only require the following ABIs:
- GLIBC_2.18
- CXXABI_1.3.7 (GCC 4.8.3)
- GCC_4.2.0
Which are available on at least the following Linux platforms:
- Ubuntu 14+
- CentOS 7+
- Debian 8+
- SuSE 13.2+
- Mint 17.3+
- Manjaro 0.8.11
# System Install
On Debian 8 (Jessie) Clang 6.0 can be installed as follows:
```sh
cat >>/etc/apt/sources.list <<'EOF'
deb http://apt.llvm.org/jessie/ llvm-toolchain-jessie main
deb-src http://apt.llvm.org/jessie/ llvm-toolchain-jessie main
EOF
wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | apt-key add -
apt-key fingerprint |& grep '6084 F3CF 814B 57C1 CF12 EFD5 15CF 4D18 AF4F 7421'
apt-get update
apt-get install clang lld
```
# Bazel Configuration
This toolchain can compile TensorFlow in 2m30s on a 96-core Skylake GCE VM if
the following `.bazelrc` settings are added:
```
startup --host_jvm_args=-Xmx30G
startup --host_jvm_args=-Xms30G
startup --host_jvm_args=-XX:MaxNewSize=3g
startup --host_jvm_args=-XX:-UseAdaptiveSizePolicy
startup --host_jvm_args=-XX:+UseConcMarkSweepGC
startup --host_jvm_args=-XX:TargetSurvivorRatio=70
startup --host_jvm_args=-XX:SurvivorRatio=6
startup --host_jvm_args=-XX:+UseCMSInitiatingOccupancyOnly
startup --host_jvm_args=-XX:CMSFullGCsBeforeCompaction=1
startup --host_jvm_args=-XX:CMSInitiatingOccupancyFraction=75
build --jobs=100
build --local_resources=200000,100,100
build --crosstool_top=@local_config_clang6//clang6
build --noexperimental_check_output_files
build --nostamp
build --config=opt
build --noexperimental_check_output_files
build --copt=-march=native
build --host_copt=-march=native
```
# x86_64 Microarchitectures
## Intel CPU Line
- 2003 P6 M SSE SSE2
- 2004 prescott SSE3 SSSE3 (-march=prescott)
- 2006 core X64 SSE4.1 (only on 45nm variety) (-march=core2)
- 2008 nehalem SSE4.2 VT-x VT-d (-march=nehalem)
- 2010 westmere CLMUL AES (-march=westmere)
- 2012 sandybridge AVX TXT (-march=sandybridge)
- 2012 ivybridge F16C MOVBE (-march=ivybridge)
- 2013 haswell AVX2 TSX BMI2 FMA (-march=haswell)
- 2014 broadwell RDSEED ADCX PREFETCHW (-march=broadwell - works on trusty gcc4.9)
- 2015 skylake SGX ADX MPX AVX-512[xeon-only] (-march=skylake / -march=skylake-avx512 - needs gcc7)
- 2018 cannonlake AVX-512 SHA (-march=cannonlake - needs clang5)
## Intel Low Power CPU Line
- 2013 silvermont SSE4.1 SSE4.2 VT-x (-march=silvermont)
- 2016 goldmont SHA (-march=goldmont - needs clang5)
## AMD CPU Line
- 2003 k8 SSE SSE2 (-march=k8)
- 2005 k8 (Venus) SSE3 (-march=k8-sse3)
- 2008 barcelona SSE4a?! (-march=barcelona)
- 2011 bulldozer SSE4.1 SSE4.2 CLMUL AVX AES FMA4?! (-march=bdver1)
- 2011 piledriver FMA (-march=bdver2)
- 2015 excavator AVX2 BMI2 MOVBE (-march=bdver4)
## Google Compute Engine Supported CPUs
- 2012 sandybridge 2.6gHz -march=sandybridge
- 2012 ivybridge 2.5gHz -march=ivybridge
- 2013 haswell 2.3gHz -march=haswell
- 2014 broadwell 2.2gHz -march=broadwell
- 2015 skylake 2.0gHz -march=skylake-avx512
See: <https://cloud.google.com/compute/docs/cpu-platforms>

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package(default_visibility = ["//visibility:public"])
# Please note that the output of these tools is unencumbered.
licenses(["restricted"]) # NCSA, GPLv3 (e.g. gold)
filegroup(
name = "ar",
srcs = ["llvm/bin/llvm-ar"],
output_licenses = ["unencumbered"],
)
filegroup(
name = "as",
srcs = ["llvm/bin/llvm-as"],
output_licenses = ["unencumbered"],
)
filegroup(
name = "cpp",
srcs = ["llvm/bin/llvm-cpp"],
output_licenses = ["unencumbered"],
)
filegroup(
name = "dwp",
srcs = ["llvm/bin/llvm-dwp"],
output_licenses = ["unencumbered"],
)
filegroup(
name = "gcc",
srcs = ["llvm/bin/clang"],
output_licenses = ["unencumbered"],
)
filegroup(
name = "gcov",
srcs = ["llvm/bin/llvm-cov"],
output_licenses = ["unencumbered"],
)
filegroup(
name = "ld",
srcs = ["llvm/bin/ld.lld"],
output_licenses = ["unencumbered"],
)
filegroup(
name = "nm",
srcs = ["llvm/bin/llvm-nm"],
output_licenses = ["unencumbered"],
)
filegroup(
name = "objcopy",
srcs = ["llvm/bin/llvm-objcopy"],
output_licenses = ["unencumbered"],
)
filegroup(
name = "objdump",
srcs = ["llvm/bin/llvm-objdump"],
output_licenses = ["unencumbered"],
)
filegroup(
name = "profdata",
srcs = ["llvm/bin/llvm-profdata"],
output_licenses = ["unencumbered"],
)
filegroup(
name = "strip",
srcs = ["sbin/strip"],
output_licenses = ["unencumbered"],
)
filegroup(
name = "xray",
srcs = ["llvm/bin/llvm-xray"],
output_licenses = ["unencumbered"],
)
filegroup(
name = "includes",
srcs = glob(["llvm/lib/clang/6.0.0/include/**"]),
output_licenses = ["unencumbered"],
)
filegroup(
name = "libraries",
srcs = glob([
"lib/*.*",
"lib/clang/6.0.0/lib/linux/*.*",
]),
output_licenses = ["unencumbered"],
)
filegroup(
name = "compiler_files",
srcs = [
":as",
":gcc",
":includes",
],
output_licenses = ["unencumbered"],
)
filegroup(
name = "linker_files",
srcs = [
":ar",
":ld",
":libraries",
],
output_licenses = ["unencumbered"],
)
filegroup(
name = "all_files",
srcs = [
":compiler_files",
":dwp",
":gcov",
":linker_files",
":nm",
":objcopy",
":objdump",
":profdata",
":strip",
":xray",
],
output_licenses = ["unencumbered"],
)
filegroup(
name = "empty",
srcs = [], # bazel crashes without this
output_licenses = ["unencumbered"],
)
cc_toolchain_suite(
name = "clang6",
toolchains = {
"k8|clang6": ":clang6-k8",
},
)
cc_toolchain(
name = "clang6-k8",
all_files = ":all_files",
compiler_files = ":compiler_files",
cpu = "k8",
dwp_files = ":dwp",
dynamic_runtime_libs = [":empty"],
linker_files = ":linker_files",
objcopy_files = ":objcopy",
output_licenses = ["unencumbered"],
static_runtime_libs = [":empty"],
strip_files = ":strip",
supports_param_files = 1,
)

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third_party/toolchains/clang6/repo.bzl vendored Normal file
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"""Repository rule for Debian 8 Jessie Clang-6.0 portable Linux builds."""
def _clang6_configure(ctx):
# TODO(jart): It'd probably be better to use Bazel's struct.to_proto()
# method to generate a gigantic CROSSTOOL file that allows
# Clang to support everything.
ctx.symlink(
ctx.os.environ.get('TF_LLVM_PATH',
'/usr/lib/llvm-6.0'),
'clang6/llvm')
ctx.symlink(
ctx.os.environ.get('STRIP', '/usr/bin/strip'),
'clang6/sbin/strip')
ctx.symlink(
ctx.os.environ.get('OBJDUMP', '/usr/bin/objdump'),
'clang6/sbin/objdump')
ctx.symlink(ctx.attr._build, 'clang6/BUILD')
ctx.template('clang6/CROSSTOOL', ctx.attr._crosstool, {
'%package(@local_config_clang6//clang6)%': str(ctx.path('clang6')),
})
clang6_configure = repository_rule(
implementation = _clang6_configure,
attrs = {
'_build': attr.label(
default=str(Label('//third_party/toolchains/clang6:clang.BUILD'))),
'_crosstool': attr.label(
default=str(Label('//third_party/toolchains/clang6:CROSSTOOL.tpl'))),
},
)