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CMakeLists.txt
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CMakeLists.txt
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cmake_minimum_required(VERSION 3.10 FATAL_ERROR)
#cmake_policy(SET CMP0022 NEW)
#cmake_policy(SET CMP0023 NEW)
# Use compiler ID "AppleClang" instead of "Clang" for XCode.
# Not setting this sometimes makes XCode C compiler gets detected as "Clang",
# even when the C++ one is detected as "AppleClang".
cmake_policy(SET CMP0010 NEW)
cmake_policy(SET CMP0025 NEW)
# Suppress warning flags in default MSVC configuration. It's not
# mandatory that we do this (and we don't if cmake is old), but it's
# nice when it's possible, and it's possible on our Windows configs.
if(NOT CMAKE_VERSION VERSION_LESS 3.15.0)
cmake_policy(SET CMP0092 NEW)
endif()
if(NOT CMAKE_VERSION VERSION_LESS 3.10)
set(FIND_CUDA_MODULE_DEPRECATED ON)
endif()
# ---[ Project and semantic versioning.
project(Torch CXX C)
if(${CMAKE_SYSTEM_NAME} STREQUAL "Linux")
set(LINUX TRUE)
else()
set(LINUX FALSE)
endif()
set(CMAKE_INSTALL_MESSAGE NEVER)
# check and set CMAKE_CXX_STANDARD
string(FIND "${CMAKE_CXX_FLAGS}" "-std=c++" env_cxx_standard)
if(env_cxx_standard GREATER -1)
message(
WARNING "C++ standard version definition detected in environment variable."
"PyTorch requires -std=c++14. Please remove -std=c++ settings in your environment.")
endif()
set(CMAKE_CXX_STANDARD 14)
set(CMAKE_C_STANDARD 11)
if(DEFINED GLIBCXX_USE_CXX11_ABI)
if(${GLIBCXX_USE_CXX11_ABI} EQUAL 1)
set(CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D_GLIBCXX_USE_CXX11_ABI=1")
endif()
endif()
set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
# One variable that determines whether the current cmake process is being run
# with the main Caffe2 library. This is useful for building modules - if
# modules are built with the main Caffe2 library then one does not need to do
# find caffe2 in the cmake script. One can usually guard it in some way like
# if(NOT CAFFE2_CMAKE_BUILDING_WITH_MAIN_REPO)
# find_package(Caffe2 REQUIRED)
# endif()
set(CAFFE2_CMAKE_BUILDING_WITH_MAIN_REPO ON)
# Googletest's cmake files are going to set it on once they are processed. Let's
# set it at the very beginning so that the entire build is deterministic.
set(THREADS_PREFER_PTHREAD_FLAG ON)
if(NOT DEFINED BLAS_SET_BY_USER)
if(DEFINED BLAS)
set(BLAS_SET_BY_USER TRUE)
else()
message(STATUS "Not forcing any particular BLAS to be found")
set(BLAS_SET_BY_USER FALSE)
endif()
set(BLAS_SET_BY_USER ${BLAS_SET_BY_USER} CACHE STRING "Marks whether BLAS was manually set by user or auto-detected")
endif()
# Apple specific
if(APPLE)
# These lines are an attempt to make find_package(cuda) pick up
# libcuda.dylib, and not cuda.framework. It doesn't work all
# the time, but it seems to help for some users.
# TODO: replace this with a more robust fix
set(CMAKE_FIND_FRAMEWORK LAST)
set(CMAKE_FIND_APPBUNDLE LAST)
# Get clang version on macOS
execute_process( COMMAND ${CMAKE_CXX_COMPILER} --version OUTPUT_VARIABLE clang_full_version_string )
string(REGEX REPLACE "Apple LLVM version ([0-9]+\\.[0-9]+).*" "\\1" CLANG_VERSION_STRING ${clang_full_version_string})
message( STATUS "CLANG_VERSION_STRING: " ${CLANG_VERSION_STRING} )
# RPATH stuff
set(CMAKE_MACOSX_RPATH ON)
if(NOT IOS)
# Determine if we can link against ML Compute
set(MLCOMPUTE_FOUND OFF)
execute_process(
COMMAND bash -c "xcrun --sdk macosx --show-sdk-path"
OUTPUT_VARIABLE _macosx_sdk_path
OUTPUT_STRIP_TRAILING_WHITESPACE)
set(_SDK_SEARCH_PATH "${_macosx_sdk_path}/System/Library/Frameworks/")
set(_FRAMEWORK_SEARCH_PATH "/System/Library/Frameworks/")
find_library(_MLCompute_fwrk_path_ NAMES MLCompute PATHS ${_FRAMEWORK_SEARCH_PATH} NO_DEFAULT_PATH)
find_library(_MLCompute_sdk_path_ NAMES MLCompute PATHS ${_SDK_SEARCH_PATH} NO_DEFAULT_PATH)
if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/mlc)
set(_MLC_FOLDER_EXISTS YES)
else()
set(_MLC_FOLDER_EXISTS NO)
endif()
if(_MLCompute_fwrk_path_ AND _MLCompute_sdk_path_ AND _MLC_FOLDER_EXISTS)
set(MLCOMPUTE_FOUND ON)
message(STATUS "ML Compute framework found")
else()
message(STATUS "ML Compute framework not found")
endif()
endif()
endif()
set(CPU_AARCH64 OFF)
set(CPU_INTEL OFF)
if(CMAKE_SYSTEM_PROCESSOR MATCHES "(AMD64|x86_64)")
set(CPU_INTEL ON)
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(aarch64|arm64)")
set(CPU_AARCH64 ON)
endif()
# For non-supported platforms, turn USE_DISTRIBUTED off by default.
# It is not tested and likely won't work without additional changes.
if(NOT LINUX AND NOT WIN32)
set(USE_DISTRIBUTED OFF CACHE STRING "Use distributed")
# On macOS, if USE_DISTRIBUTED is enabled (specified by the user),
# then make Gloo build with the libuv transport.
if(APPLE AND USE_DISTRIBUTED)
set(USE_LIBUV ON CACHE STRING "")
endif()
endif()
# ---[ Options.
# Note to developers: if you add an option below, make sure you also add it to
# cmake/Summary.cmake so that the summary prints out the option values.
include(CMakeDependentOption)
option(ATEN_NO_TEST "Do not build ATen test binaries" OFF)
option(BUILD_BINARY "Build C++ binaries" OFF)
option(BUILD_DOCS "Build Caffe2 documentation" OFF)
option(BUILD_CUSTOM_PROTOBUF "Build and use Caffe2's own protobuf under third_party" ON)
option(BUILD_PYTHON "Build Python binaries" ON)
option(BUILD_CAFFE2 "Master flag to build Caffe2" ON)
option(BUILD_LITE_INTERPRETER "Master flag to build Lite Interpreter" OFF)
cmake_dependent_option(
BUILD_CAFFE2_OPS "Build Caffe2 operators" ON
"BUILD_CAFFE2" OFF)
cmake_dependent_option(
BUILD_CAFFE2_MOBILE "Build libcaffe2 for mobile (deprecating)" OFF
"BUILD_CAFFE2" OFF)
option(BUILD_SHARED_LIBS "Build libcaffe2.so" ON)
cmake_dependent_option(
CAFFE2_LINK_LOCAL_PROTOBUF "If set, build protobuf inside libcaffe2.so." ON
"BUILD_SHARED_LIBS AND BUILD_CUSTOM_PROTOBUF" OFF)
cmake_dependent_option(
CAFFE2_USE_MSVC_STATIC_RUNTIME "Using MSVC static runtime libraries" ON
"NOT BUILD_SHARED_LIBS" OFF)
option(BUILD_TEST "Build C++ test binaries (need gtest and gbenchmark)" OFF)
option(BUILD_STATIC_RUNTIME_BENCHMARK "Build C++ binaries for static runtime benchmarks (need gbenchmark)" OFF)
option(BUILD_TENSOREXPR_BENCHMARK "Build C++ binaries for tensorexpr benchmarks (need gbenchmark)" OFF)
option(BUILD_MOBILE_BENCHMARK "Build C++ test binaries for mobile (ARM) targets(need gtest and gbenchmark)" OFF)
option(BUILD_MOBILE_TEST "Build C++ test binaries for mobile (ARM) targets(need gtest and gbenchmark)" OFF)
option(BUILD_JNI "Build JNI bindings" OFF)
option(BUILD_MOBILE_AUTOGRAD "Build autograd function in mobile build (in development)" OFF)
cmake_dependent_option(
INSTALL_TEST "Install test binaries if BUILD_TEST is on" ON
"BUILD_TEST" OFF)
option(USE_CPP_CODE_COVERAGE "Compile C/C++ with code coverage flags" OFF)
option(COLORIZE_OUTPUT "Colorize output during compilation" ON)
option(USE_ASAN "Use Address Sanitizer" OFF)
option(USE_TSAN "Use Thread Sanitizer" OFF)
option(USE_CUDA "Use CUDA" ON)
# BUILD_SPLIT_CUDA must also be exported as an environment variable before building, with
# `export BUILD_SPLIT_CUDA=1` because cpp_extension.py can only work properly if this variable
# also exists in the environment.
# This option is incompatible with CUDA_SEPARABLE_COMPILATION.
cmake_dependent_option(
BUILD_SPLIT_CUDA "Split torch_cuda library into torch_cuda_cu and torch_cuda_cpp" OFF
"USE_CUDA AND NOT CUDA_SEPARABLE_COMPILATION" OFF)
option(USE_FAST_NVCC "Use parallel NVCC build" OFF)
option(USE_ROCM "Use ROCm" ON)
option(CAFFE2_STATIC_LINK_CUDA "Statically link CUDA libraries" OFF)
cmake_dependent_option(
USE_CUDNN "Use cuDNN" ON
"USE_CUDA" OFF)
cmake_dependent_option(
USE_STATIC_CUDNN "Use cuDNN static libraries" OFF
"USE_CUDNN" OFF)
cmake_dependent_option(
USE_WHOLE_CUDNN "Use whole-library linking for cuDNN" OFF
"USE_STATIC_CUDNN" OFF)
cmake_dependent_option(
USE_EXPERIMENTAL_CUDNN_V8_API "Use experimental cuDNN v8 API" OFF
"USE_CUDNN" OFF)
option(USE_FBGEMM "Use FBGEMM (quantized 8-bit server operators)" ON)
option(USE_KINETO "Use Kineto profiling library" ON)
option(USE_BREAKPAD "Use breakpad crash dump library" ON)
option(USE_CUPTI_SO "Use CUPTI as a shared library" OFF)
option(USE_FAKELOWP "Use FakeLowp operators" OFF)
option(USE_FFMPEG "Use ffmpeg" OFF)
option(USE_GFLAGS "Use GFLAGS" OFF)
option(USE_GLOG "Use GLOG" OFF)
option(USE_LEVELDB "Use LEVELDB" OFF)
option(USE_LITE_PROTO "Use lite protobuf instead of full." OFF)
option(USE_LMDB "Use LMDB" OFF)
option(USE_MAGMA "Use MAGMA" ON)
option(USE_METAL "Use Metal for Caffe2 iOS build" ON)
option(USE_PYTORCH_METAL "Use Metal for PyTorch iOS build" OFF)
option(USE_NATIVE_ARCH "Use -march=native" OFF)
cmake_dependent_option(
USE_MLCOMPUTE "Use ML Compute for macOS build" ON
"MLCOMPUTE_FOUND" OFF)
cmake_dependent_option(
USE_NCCL "Use NCCL" ON
"USE_CUDA OR USE_ROCM;UNIX;NOT APPLE" OFF)
cmake_dependent_option(USE_RCCL "Use RCCL" ON
USE_NCCL OFF)
cmake_dependent_option(
USE_STATIC_NCCL "Use static NCCL" OFF
"USE_NCCL" OFF)
cmake_dependent_option(
USE_SYSTEM_NCCL "Use system-wide NCCL" OFF
"USE_NCCL" OFF)
option(USE_NNAPI "Use NNAPI" OFF)
option(USE_NNPACK "Use NNPACK" ON)
cmake_dependent_option(
USE_NUMA "Use NUMA. Only available on Linux." ON
"LINUX" OFF)
cmake_dependent_option(
USE_NVRTC "Use NVRTC. Only available if USE_CUDA is on." OFF
"USE_CUDA" OFF)
option(USE_NUMPY "Use NumPy" ON)
option(USE_OBSERVERS "Use observers module." OFF)
option(USE_OPENCL "Use OpenCL" OFF)
option(USE_OPENCV "Use OpenCV" OFF)
option(USE_OPENMP "Use OpenMP for parallel code" ON)
cmake_dependent_option(
USE_PRECOMPILED_HEADERS "Use pre-compiled headers to accelerate build. Requires cmake >= 3.16." OFF
"CMAKE_VERSION VERSION_LESS \"3.16\"" OFF)
option(USE_PROF "Use profiling" OFF)
option(USE_QNNPACK "Use QNNPACK (quantized 8-bit operators)" ON)
option(USE_PYTORCH_QNNPACK "Use ATen/QNNPACK (quantized 8-bit operators)" ON)
option(USE_REDIS "Use Redis" OFF)
option(USE_ROCKSDB "Use RocksDB" OFF)
option(USE_SNPE "Use Qualcomm's SNPE library" OFF)
option(USE_SYSTEM_EIGEN_INSTALL
"Use system Eigen instead of the one under third_party" OFF)
option(USE_TENSORRT "Using Nvidia TensorRT library" OFF)
cmake_dependent_option(
USE_VALGRIND "Use Valgrind. Only available on Linux." ON
"LINUX" OFF)
if(NOT DEFINED USE_VULKAN)
cmake_dependent_option(
USE_VULKAN "Use Vulkan GPU backend" ON
"ANDROID" OFF)
endif()
if(IOS)
set(USE_BREAKPAD OFF)
endif()
option(USE_SOURCE_DEBUG_ON_MOBILE "Enable " ON)
option(USE_LITE_INTERPRETER_PROFILER "Enable " ON)
option(USE_VULKAN_FP16_INFERENCE "Vulkan - Use fp16 inference" OFF)
option(USE_VULKAN_RELAXED_PRECISION "Vulkan - Use relaxed precision math in the kernels (mediump)" OFF)
option(USE_VULKAN_SHADERC_RUNTIME "Vulkan - Use runtime shader compilation as opposed to build-time (needs libshaderc)" OFF)
option(USE_XNNPACK "Use XNNPACK" ON)
option(USE_ZMQ "Use ZMQ" OFF)
option(USE_ZSTD "Use ZSTD" OFF)
# Ensure that an MKLDNN build is the default for x86 CPUs
# but optional for AArch64 (dependent on -DUSE_MKLDNN).
cmake_dependent_option(
USE_MKLDNN "Use MKLDNN. Only available on x86, x86_64, and AArch64." "${CPU_INTEL}"
"CPU_INTEL OR CPU_AARCH64" OFF)
cmake_dependent_option(
USE_MKLDNN_ACL "Use Compute Library for the Arm architecture." OFF
"USE_MKLDNN AND CPU_AARCH64" OFF)
set(MKLDNN_ENABLE_CONCURRENT_EXEC ${USE_MKLDNN})
cmake_dependent_option(
USE_MKLDNN_CBLAS "Use CBLAS in MKLDNN" OFF
"USE_MKLDNN" OFF)
option(USE_DISTRIBUTED "Use distributed" ON)
cmake_dependent_option(
USE_MPI "Use MPI for Caffe2. Only available if USE_DISTRIBUTED is on." ON
"USE_DISTRIBUTED" OFF)
cmake_dependent_option(
USE_GLOO "Use Gloo. Only available if USE_DISTRIBUTED is on." ON
"USE_DISTRIBUTED" OFF)
cmake_dependent_option(
USE_GLOO_WITH_OPENSSL "Use Gloo with OpenSSL. Only available if USE_GLOO is on." OFF
"USE_GLOO AND LINUX AND NOT INTERN_BUILD_MOBILE" OFF)
cmake_dependent_option(
USE_C10D_GLOO "USE C10D GLOO" ON "USE_DISTRIBUTED;USE_GLOO" OFF)
cmake_dependent_option(
USE_C10D_NCCL "USE C10D NCCL" ON "USE_DISTRIBUTED;USE_NCCL" OFF)
cmake_dependent_option(
USE_C10D_MPI "USE C10D MPI" ON "USE_DISTRIBUTED;USE_MPI" OFF)
cmake_dependent_option(
USE_TENSORPIPE "Use TensorPipe. Only available if USE_DISTRIBUTED is on." ON
"USE_DISTRIBUTED" OFF)
option(USE_TBB "Use TBB" OFF)
cmake_dependent_option(
USE_SYSTEM_TBB "Use system-provided Intel TBB." OFF "USE_TBB" OFF)
option(ONNX_ML "Enable traditional ONNX ML API." ON)
option(HAVE_SOVERSION "Whether to add SOVERSION to the shared objects" OFF)
option(BUILD_LIBTORCH_CPU_WITH_DEBUG "Enable RelWithDebInfo for libtorch_cpu target only" OFF)
cmake_dependent_option(
USE_DEPLOY "Build embedded torch::deploy interpreter. See torch/csrc/deploy/README.md for more info." OFF
"BUILD_PYTHON" OFF)
cmake_dependent_option(USE_CCACHE "Attempt using CCache to wrap the compilation" ON "UNIX" OFF)
option(WERROR "Build with -Werror supported by the compiler" OFF)
if(USE_CCACHE)
find_program(CCACHE_PROGRAM ccache)
if(CCACHE_PROGRAM)
set(CMAKE_C_COMPILER_LAUNCHER "${CCACHE_PROGRAM}" CACHE STRING "C compiler launcher")
set(CMAKE_CXX_COMPILER_LAUNCHER "${CCACHE_PROGRAM}" CACHE STRING "CXX compiler launcher")
set(CMAKE_CUDA_COMPILER_LAUNCHER "${CCACHE_PROGRAM}" CACHE STRING "CUDA compiler launcher")
else()
message(STATUS "Could not find ccache. Consider installing ccache to speed up compilation.")
endif()
endif()
# Since TensorPipe does not support Windows, set it to OFF when WIN32 detected
# On Windows platform, if user does not install libuv in build conda env and
# does not set libuv_ROOT environment variable. Set USE_DISTRIBUTED to OFF.
if(WIN32)
set(USE_TENSORPIPE OFF)
message(WARNING "TensorPipe cannot be used on Windows. Set it to OFF")
if(USE_DISTRIBUTED AND NOT DEFINED ENV{libuv_ROOT})
find_library(
libuv_tmp_LIBRARY
NAMES uv libuv
HINTS $ENV{CONDA_PREFIX}\\Library $ENV{PREFIX}\\Library
PATH_SUFFIXES lib
NO_DEFAULT_PATH)
if(NOT libuv_tmp_LIBRARY)
set(USE_DISTRIBUTED OFF)
set(USE_GLOO OFF)
message(
WARNING "Libuv is not installed in current conda env. Set USE_DISTRIBUTED to OFF. "
"Please run command 'conda install -c conda-forge libuv=1.39' to install libuv.")
else()
set(ENV{libuv_ROOT} ${libuv_tmp_LIBRARY}/../../)
endif()
endif()
endif()
if(USE_GLOO_WITH_OPENSSL)
set(USE_TCP_OPENSSL_LOAD ON CACHE STRING "")
endif()
# Linux distributions do not want too many embedded sources, in that sense we
# need to be able to build pytorch with an (almost) empty third_party
# directory.
# USE_SYSTEM_LIBS is a shortcut variable to toggle all the # USE_SYSTEM_*
# variables on. Individual USE_SYSTEM_* variables can be toggled with
# USE_SYSTEM_LIBS being "OFF".
option(USE_SYSTEM_LIBS "Use all available system-provided libraries." OFF)
option(USE_SYSTEM_CPUINFO "Use system-provided cpuinfo." OFF)
option(USE_SYSTEM_SLEEF "Use system-provided sleef." OFF)
option(USE_SYSTEM_GLOO "Use system-provided gloo." OFF)
option(USE_SYSTEM_FP16 "Use system-provided fp16." OFF)
option(USE_SYSTEM_PYBIND11 "Use system-provided PyBind11." OFF)
option(USE_SYSTEM_PTHREADPOOL "Use system-provided pthreadpool." OFF)
option(USE_SYSTEM_PSIMD "Use system-provided psimd." OFF)
option(USE_SYSTEM_FXDIV "Use system-provided fxdiv." OFF)
option(USE_SYSTEM_BENCHMARK "Use system-provided google benchmark." OFF)
option(USE_SYSTEM_ONNX "Use system-provided onnx." OFF)
option(USE_SYSTEM_XNNPACK "Use system-provided xnnpack." OFF)
option(USE_GOLD_LINKER "Use ld.gold to link" OFF)
if(USE_SYSTEM_LIBS)
set(USE_SYSTEM_CPUINFO ON)
set(USE_SYSTEM_SLEEF ON)
set(USE_SYSTEM_GLOO ON)
set(BUILD_CUSTOM_PROTOBUF OFF)
set(USE_SYSTEM_EIGEN_INSTALL ON)
set(USE_SYSTEM_FP16 ON)
set(USE_SYSTEM_PTHREADPOOL ON)
set(USE_SYSTEM_PSIMD ON)
set(USE_SYSTEM_FXDIV ON)
set(USE_SYSTEM_BENCHMARK ON)
set(USE_SYSTEM_ONNX ON)
set(USE_SYSTEM_XNNPACK ON)
set(USE_SYSTEM_PYBIND11 ON)
if(USE_TBB)
set(USE_SYSTEM_TBB ON)
endif()
endif()
# Used when building Caffe2 through setup.py
option(BUILDING_WITH_TORCH_LIBS "Tell cmake if Caffe2 is being built alongside torch libs" ON)
# /Z7 override option
# When generating debug symbols, CMake default to use the flag /Zi.
# However, it is not compatible with sccache. So we rewrite it off.
# But some users don't use sccache; this override is for them.
cmake_dependent_option(
MSVC_Z7_OVERRIDE "Work around sccache bug by replacing /Zi and /ZI with /Z7 when using MSVC (if you are not using sccache, you can turn this OFF)" ON
"MSVC" OFF)
if(NOT USE_SYSTEM_ONNX)
set(ONNX_NAMESPACE "onnx_torch" CACHE STRING "A namespace for ONNX; needed to build with other frameworks that share ONNX.")
else()
set(ONNX_NAMESPACE "onnx" CACHE STRING "A namespace for ONNX; needed to build with other frameworks that share ONNX.")
endif()
set(SELECTED_OP_LIST "" CACHE STRING
"Path to the yaml file that contains the list of operators to include for custom build. Include all operators by default.")
set(OP_DEPENDENCY "" CACHE STRING
"Path to the yaml file that contains the op dependency graph for custom build.")
set(STATIC_DISPATCH_BACKEND "" CACHE STRING
"Name of the backend for which static dispatch code is generated, e.g.: CPU.")
# This is a fix for a rare build issue on Ubuntu:
# symbol lookup error: miniconda3/envs/pytorch-py3.7/lib/libmkl_intel_lp64.so: undefined symbol: mkl_blas_dsyrk
# https://software.intel.com/en-us/articles/symbol-lookup-error-when-linking-intel-mkl-with-gcc-on-ubuntu
if(LINUX)
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,--no-as-needed")
endif()
if(MSVC)
set(CMAKE_NINJA_CMCLDEPS_RC OFF)
foreach(flag_var
CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE
CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO
CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE
CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO)
# Replace /Zi and /ZI with /Z7
if(MSVC_Z7_OVERRIDE)
if(${flag_var} MATCHES "/Z[iI]")
string(REGEX REPLACE "/Z[iI]" "/Z7" ${flag_var} "${${flag_var}}")
endif(${flag_var} MATCHES "/Z[iI]")
endif(MSVC_Z7_OVERRIDE)
# Turn off warnings on Windows. In an ideal world we'd be warning
# clean on Windows too, but this is too much work for our
# non-Windows developers.
#
# NB: Technically, this is not necessary if CMP0092 was applied
# properly, but only cmake >= 3.15 has this policy, so we nail
# it one more time just be safe.
#
# NB2: This is NOT enough to prevent warnings from nvcc on MSVC. At the
# moment only CMP0092 is enough to prevent those warnings too.
string(REPLACE "/W3" "" ${flag_var} "${${flag_var}}")
# Turn off warnings (Windows build is currently is extremely warning
# unclean and the warnings aren't telling us anything useful.)
string(APPEND ${flag_var} " /w")
if(${CAFFE2_USE_MSVC_STATIC_RUNTIME})
if(${flag_var} MATCHES "/MD")
string(REGEX REPLACE "/MD" "/MT" ${flag_var} "${${flag_var}}")
endif(${flag_var} MATCHES "/MD")
else()
if(${flag_var} MATCHES "/MT")
string(REGEX REPLACE "/MT" "/MD" ${flag_var} "${${flag_var}}")
endif()
endif()
# /bigobj increases number of sections in .obj file, which is needed to link
# against libraries in Python 2.7 under Windows
# For Visual Studio generators, if /MP is not added, then we may need
# to add /MP to the flags.
# For other generators like ninja, we don't need to add /MP because it is
# already handled by the generator itself.
if(CMAKE_GENERATOR MATCHES "Visual Studio" AND NOT ${flag_var} MATCHES "/MP")
set(${flag_var} "${${flag_var}} /MP /bigobj")
else()
set(${flag_var} "${${flag_var}} /bigobj")
endif()
endforeach(flag_var)
foreach(flag_var
CMAKE_C_FLAGS CMAKE_C_FLAGS_RELEASE CMAKE_C_FLAGS_MINSIZEREL
CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_RELEASE CMAKE_CXX_FLAGS_MINSIZEREL)
if(${flag_var} MATCHES "/Z[iI7]")
string(REGEX REPLACE "/Z[iI7]" "" ${flag_var} "${${flag_var}}")
endif()
endforeach(flag_var)
foreach(flag_var
CMAKE_SHARED_LINKER_FLAGS_DEBUG CMAKE_STATIC_LINKER_FLAGS_DEBUG
CMAKE_EXE_LINKER_FLAGS_DEBUG CMAKE_MODULE_LINKER_FLAGS_DEBUG)
# Switch off incremental linking in debug builds
if(${flag_var} MATCHES "/INCREMENTAL" AND NOT ${flag_var} MATCHES "/INCREMENTAL:NO")
string(REGEX REPLACE "/INCREMENTAL" "/INCREMENTAL:NO" ${flag_var} "${${flag_var}}")
endif()
endforeach(flag_var)
foreach(flag_var
CMAKE_SHARED_LINKER_FLAGS CMAKE_STATIC_LINKER_FLAGS
CMAKE_EXE_LINKER_FLAGS CMAKE_MODULE_LINKER_FLAGS)
string(APPEND ${flag_var} " /ignore:4049 /ignore:4217 /ignore:4099")
endforeach(flag_var)
# Try harder
list(APPEND CUDA_NVCC_FLAGS "-Xcompiler" "/w" "-w")
endif(MSVC)
list(APPEND CUDA_NVCC_FLAGS "-Xfatbin" "-compress-all")
list(APPEND CUDA_NVCC_FLAGS_DEBUG "-Xfatbin" "-compress-all")
list(APPEND CUDA_NVCC_FLAGS_RELWITHDEBINFO "-Xfatbin" "-compress-all")
if(NOT MSVC)
list(APPEND CUDA_NVCC_FLAGS_DEBUG "-g" "-lineinfo" "--source-in-ptx")
list(APPEND CUDA_NVCC_FLAGS_RELWITHDEBINFO "-g" "-lineinfo" "--source-in-ptx")
endif(NOT MSVC)
# Set INTERN_BUILD_MOBILE for all mobile builds. Components that are not
# applicable to mobile are disabled by this variable.
# Setting `BUILD_PYTORCH_MOBILE_WITH_HOST_TOOLCHAIN` environment variable can
# force it to do mobile build with host toolchain - which is useful for testing
# purpose.
if(ANDROID OR IOS OR DEFINED ENV{BUILD_PYTORCH_MOBILE_WITH_HOST_TOOLCHAIN})
set(INTERN_BUILD_MOBILE ON)
if(DEFINED ENV{BUILD_PYTORCH_MOBILE_WITH_HOST_TOOLCHAIN})
# C10_MOBILE is derived from Android/iOS toolchain macros in
# c10/macros/Macros.h, so it needs to be explicitly set here.
string(APPEND CMAKE_CXX_FLAGS " -DC10_MOBILE")
endif()
endif()
# INTERN_BUILD_ATEN_OPS is used to control whether to build ATen/TH operators.
# It's disabled for caffe2 mobile library.
if(INTERN_BUILD_MOBILE AND BUILD_CAFFE2_MOBILE)
set(INTERN_BUILD_ATEN_OPS OFF)
else()
set(INTERN_BUILD_ATEN_OPS ON)
endif()
# BUILD_CAFFE2_MOBILE is the master switch to choose between libcaffe2 v.s. libtorch mobile build.
# When it's enabled it builds original libcaffe2 mobile library without ATen/TH ops nor TorchScript support;
# When it's disabled it builds libtorch mobile library, which contains ATen/TH ops and native support for
# TorchScript model, but doesn't contain not-yet-unified caffe2 ops;
if(INTERN_BUILD_MOBILE AND NOT BUILD_CAFFE2_MOBILE)
if(NOT BUILD_SHARED_LIBS AND NOT "${SELECTED_OP_LIST}" STREQUAL "")
string(APPEND CMAKE_CXX_FLAGS " -DNO_EXPORT")
endif()
if(BUILD_MOBILE_AUTOGRAD)
set(INTERN_DISABLE_AUTOGRAD OFF)
else()
set(INTERN_DISABLE_AUTOGRAD ON)
endif()
set(BUILD_PYTHON OFF)
set(BUILD_CAFFE2_OPS OFF)
set(USE_DISTRIBUTED OFF)
set(NO_API ON)
set(USE_FBGEMM OFF)
set(USE_QNNPACK OFF)
set(INTERN_DISABLE_ONNX ON)
set(INTERN_USE_EIGEN_BLAS ON)
# Disable developing mobile interpreter for actual mobile build.
# Enable it elsewhere to capture build error.
set(INTERN_DISABLE_MOBILE_INTERP ON)
endif()
# ---[ Utils
include(cmake/public/utils.cmake)
# ---[ Version numbers for generated libraries
file(READ version.txt TORCH_DEFAULT_VERSION)
# Strip trailing newline
string(REGEX REPLACE "\n$" "" TORCH_DEFAULT_VERSION "${TORCH_DEFAULT_VERSION}")
if("${TORCH_DEFAULT_VERSION} " STREQUAL " ")
message(WARNING "Could not get version from base 'version.txt'")
# If we can't get the version from the version file we should probably
# set it to something non-sensical like 0.0.0
set(TORCH_DEFAULT_VERSION, "0.0.0")
endif()
set(TORCH_BUILD_VERSION "${TORCH_DEFAULT_VERSION}" CACHE STRING "Torch build version")
if(DEFINED ENV{PYTORCH_BUILD_VERSION})
set(TORCH_BUILD_VERSION "$ENV{PYTORCH_BUILD_VERSION}"
CACHE STRING "Torch build version" FORCE)
endif()
if(NOT TORCH_BUILD_VERSION)
# An empty string was specified so force version to the default
set(TORCH_BUILD_VERSION "${TORCH_DEFAULT_VERSION}"
CACHE STRING "Torch build version" FORCE)
endif()
caffe2_parse_version_str(TORCH ${TORCH_BUILD_VERSION})
caffe2_parse_version_str(CAFFE2 ${TORCH_BUILD_VERSION})
set(TORCH_SOVERSION "${TORCH_VERSION_MAJOR}.${TORCH_VERSION_MINOR}")
# ---[ CMake scripts + modules
list(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake/Modules)
# ---[ CMake build directories
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
enable_testing()
# ---[ Build variables set within the cmake tree
include(cmake/BuildVariables.cmake)
set(CAFFE2_ALLOWLIST "" CACHE STRING "A allowlist file of files that one should build.")
# Set default build type
if(NOT CMAKE_BUILD_TYPE)
message(STATUS "Build type not set - defaulting to Release")
set(CMAKE_BUILD_TYPE "Release" CACHE STRING "Choose the type of build from: Debug Release RelWithDebInfo MinSizeRel Coverage." FORCE)
endif()
# The below means we are cross compiling for arm64 or x86_64 on MacOSX
if(NOT IOS AND CMAKE_SYSTEM_NAME STREQUAL "Darwin" AND CMAKE_OSX_ARCHITECTURES MATCHES "^(x86_64|arm64)$")
set(CROSS_COMPILING_MACOSX TRUE)
# We need to compile a universal protoc to not fail protobuf build
# We set CMAKE_TRY_COMPILE_TARGET_TYPE to STATIC_LIBRARY (vs executable) to succeed the cmake compiler check for cross-compiling
set(protoc_build_command "./scripts/build_host_protoc.sh --other-flags -DCMAKE_OSX_ARCHITECTURES=\"x86_64;arm64\" -DCMAKE_TRY_COMPILE_TARGET_TYPE=STATIC_LIBRARY -DCMAKE_C_COMPILER_WORKS=1 -DCMAKE_CXX_COMPILER_WORKS=1")
# We write to a temp scriptfile because CMake COMMAND dislikes double quotes in commands
file(WRITE ${PROJECT_SOURCE_DIR}/tmp_protoc_script.sh "#!/bin/bash\n${protoc_build_command}")
file(COPY ${PROJECT_SOURCE_DIR}/tmp_protoc_script.sh DESTINATION ${PROJECT_SOURCE_DIR}/scripts/ FILE_PERMISSIONS OWNER_EXECUTE OWNER_WRITE OWNER_READ)
execute_process(COMMAND ./scripts/tmp_protoc_script.sh
WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
RESULT_VARIABLE BUILD_HOST_PROTOC_RESULT)
file(REMOVE ${PROJECT_SOURCE_DIR}/tmp_protoc_script.sh ${PROJECT_SOURCE_DIR}/scripts/tmp_protoc_script.sh)
if(NOT BUILD_HOST_PROTOC_RESULT EQUAL "0")
message(FATAL_ERROR "Could not compile universal protoc.")
endif()
set(PROTOBUF_PROTOC_EXECUTABLE "${PROJECT_SOURCE_DIR}/build_host_protoc/bin/protoc")
set(CAFFE2_CUSTOM_PROTOC_EXECUTABLE "${PROJECT_SOURCE_DIR}/build_host_protoc/bin/protoc")
endif()
# ---[ Misc checks to cope with various compiler modes
include(cmake/MiscCheck.cmake)
# External projects
include(ExternalProject)
# ---[ Dependencies
# ---[ FBGEMM doesn't work on x86 32bit and CMAKE_SYSTEM_PROCESSOR thinks its 64bit
if(USE_FBGEMM AND ((CMAKE_SYSTEM_PROCESSOR STREQUAL "x86_64" AND CMAKE_SIZEOF_VOID_P EQUAL 4) OR CMAKE_SYSTEM_PROCESSOR STREQUAL "x86"))
set(USE_FBGEMM OFF)
endif()
include(cmake/Dependencies.cmake)
if(USE_FBGEMM)
string(APPEND CMAKE_CXX_FLAGS " -DUSE_FBGEMM")
endif()
if(USE_QNNPACK)
string(APPEND CMAKE_CXX_FLAGS " -DUSE_QNNPACK")
endif()
if(USE_PYTORCH_QNNPACK)
string(APPEND CMAKE_CXX_FLAGS " -DUSE_PYTORCH_QNNPACK")
endif()
if(USE_XNNPACK)
string(APPEND CMAKE_CXX_FLAGS " -DUSE_XNNPACK")
endif()
if(USE_VULKAN)
string(APPEND CMAKE_CXX_FLAGS " -DUSE_VULKAN")
string(APPEND CMAKE_CXX_FLAGS " -DUSE_VULKAN_API")
if(USE_VULKAN_FP16_INFERENCE)
string(APPEND CMAKE_CXX_FLAGS " -DUSE_VULKAN_FP16_INFERENCE")
endif()
if(USE_VULKAN_RELAXED_PRECISION)
string(APPEND CMAKE_CXX_FLAGS " -DUSE_VULKAN_RELAXED_PRECISION")
endif()
if(USE_VULKAN_SHADERC_RUNTIME)
string(APPEND CMAKE_CXX_FLAGS " -DUSE_VULKAN_SHADERC_RUNTIME")
endif()
endif()
if(BUILD_LITE_INTERPRETER)
string(APPEND CMAKE_CXX_FLAGS " -DBUILD_LITE_INTERPRETER")
endif()
if(USE_PYTORCH_METAL)
string(APPEND CMAKE_CXX_FLAGS " -DUSE_PYTORCH_METAL")
endif()
if(USE_SOURCE_DEBUG_ON_MOBILE)
string(APPEND CMAKE_CXX_FLAGS " -DSYMBOLICATE_MOBILE_DEBUG_HANDLE")
endif()
if(USE_LITE_INTERPRETER_PROFILER)
string(APPEND CMAKE_CXX_FLAGS " -DEDGE_PROFILER_USE_KINETO")
endif()
# ---[ Allowlist file if allowlist is specified
include(cmake/Allowlist.cmake)
# ---[ Set link flag, handle additional deps for gcc 4.8 and above
if(CMAKE_COMPILER_IS_GNUCXX AND CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 4.8.0 AND NOT ANDROID)
message(STATUS "GCC ${CMAKE_CXX_COMPILER_VERSION}: Adding gcc and gcc_s libs to link line")
list(APPEND Caffe2_DEPENDENCY_LIBS gcc_s gcc)
endif()
# ---[ Build flags
if(NOT MSVC)
string(APPEND CMAKE_CXX_FLAGS " -O2 -fPIC")
string(APPEND CMAKE_CXX_FLAGS " -Wno-narrowing")
# Eigen fails to build with some versions, so convert this to a warning
# Details at http://eigen.tuxfamily.org/bz/show_bug.cgi?id=1459
string(APPEND CMAKE_CXX_FLAGS " -Wall")
string(APPEND CMAKE_CXX_FLAGS " -Wextra")
string(APPEND CMAKE_CXX_FLAGS " -Werror=return-type")
string(APPEND CMAKE_CXX_FLAGS " -Wno-missing-field-initializers")
string(APPEND CMAKE_CXX_FLAGS " -Wno-type-limits")
string(APPEND CMAKE_CXX_FLAGS " -Wno-array-bounds")
string(APPEND CMAKE_CXX_FLAGS " -Wno-unknown-pragmas")
string(APPEND CMAKE_CXX_FLAGS " -Wno-sign-compare")
string(APPEND CMAKE_CXX_FLAGS " -Wno-unused-parameter")
string(APPEND CMAKE_CXX_FLAGS " -Wno-unused-variable")
string(APPEND CMAKE_CXX_FLAGS " -Wno-unused-function")
string(APPEND CMAKE_CXX_FLAGS " -Wno-unused-result")
string(APPEND CMAKE_CXX_FLAGS " -Wno-unused-local-typedefs")
string(APPEND CMAKE_CXX_FLAGS " -Wno-strict-overflow")
string(APPEND CMAKE_CXX_FLAGS " -Wno-strict-aliasing")
string(APPEND CMAKE_CXX_FLAGS " -Wno-error=deprecated-declarations")
if(CMAKE_COMPILER_IS_GNUCXX AND NOT (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 7.0.0))
string(APPEND CMAKE_CXX_FLAGS " -Wno-stringop-overflow")
endif()
if(CMAKE_COMPILER_IS_GNUCXX)
# Suppress "The ABI for passing parameters with 64-byte alignment has changed in GCC 4.6"
string(APPEND CMAKE_CXX_FLAGS " -Wno-psabi")
endif()
# Use ld.gold if available, fall back to ld.bfd (the default ld) if not
if(USE_GOLD_LINKER)
if(USE_DISTRIBUTED AND USE_MPI)
# Same issue as here with default MPI on Ubuntu
# https://bugs.launchpad.net/ubuntu/+source/deal.ii/+bug/1841577
message(WARNING "Refusing to use gold when USE_MPI=1")
else()
execute_process(
COMMAND
"${CMAKE_C_COMPILER}" -fuse-ld=gold -Wl,--version
ERROR_QUIET
OUTPUT_VARIABLE LD_VERSION)
if(NOT "${LD_VERSION}" MATCHES "GNU gold")
message(WARNING "USE_GOLD_LINKER was set but ld.gold isn't available, turning it off")
set(USE_GOLD_LINKER OFF)
else()
message(STATUS "ld.gold is available, using it to link")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fuse-ld=gold")
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -fuse-ld=gold")
set(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} -fuse-ld=gold")
endif()
endif()
endif()
string(APPEND CMAKE_CXX_FLAGS " -Wno-error=pedantic")
string(APPEND CMAKE_CXX_FLAGS " -Wno-error=redundant-decls")
string(APPEND CMAKE_CXX_FLAGS " -Wno-error=old-style-cast")
# These flags are not available in GCC-4.8.5. Set only when using clang.
# Compared against https://gcc.gnu.org/onlinedocs/gcc-4.8.5/gcc/Option-Summary.html
if("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
string(APPEND CMAKE_CXX_FLAGS " -Wno-invalid-partial-specialization")
string(APPEND CMAKE_CXX_FLAGS " -Wno-typedef-redefinition")
string(APPEND CMAKE_CXX_FLAGS " -Wno-unknown-warning-option")
string(APPEND CMAKE_CXX_FLAGS " -Wno-unused-private-field")
string(APPEND CMAKE_CXX_FLAGS " -Wno-inconsistent-missing-override")
string(APPEND CMAKE_CXX_FLAGS " -Wno-aligned-allocation-unavailable")
string(APPEND CMAKE_CXX_FLAGS " -Wno-c++14-extensions")
string(APPEND CMAKE_CXX_FLAGS " -Wno-constexpr-not-const")
string(APPEND CMAKE_CXX_FLAGS " -Wno-missing-braces")
string(APPEND CMAKE_CXX_FLAGS " -Qunused-arguments")
if(${COLORIZE_OUTPUT})
string(APPEND CMAKE_CXX_FLAGS " -fcolor-diagnostics")
endif()
endif()
if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU" AND CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 4.9)
if(${COLORIZE_OUTPUT})
string(APPEND CMAKE_CXX_FLAGS " -fdiagnostics-color=always")
endif()
endif()
if((APPLE AND (NOT ("${CLANG_VERSION_STRING}" VERSION_LESS "9.0")))
OR(CMAKE_COMPILER_IS_GNUCXX
AND(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 7.0 AND NOT APPLE)))
string(APPEND CMAKE_CXX_FLAGS " -faligned-new")
endif()
if(WERROR)
check_cxx_compiler_flag("-Werror" COMPILER_SUPPORT_WERROR)
if(NOT COMPILER_SUPPORT_WERROR)
set(WERROR FALSE)
else()
string(APPEND CMAKE_CXX_FLAGS " -Werror")
endif()
endif(WERROR)
if(NOT APPLE)
string(APPEND CMAKE_CXX_FLAGS " -Wno-unused-but-set-variable")
string(APPEND CMAKE_CXX_FLAGS " -Wno-maybe-uninitialized")
endif()
string(APPEND CMAKE_CXX_FLAGS_DEBUG " -fno-omit-frame-pointer -O0")
string(APPEND CMAKE_LINKER_FLAGS_DEBUG " -fno-omit-frame-pointer -O0")
string(APPEND CMAKE_CXX_FLAGS " -fno-math-errno")
string(APPEND CMAKE_CXX_FLAGS " -fno-trapping-math")
check_cxx_compiler_flag("-Werror=format" HAS_WERROR_FORMAT)
if(HAS_WERROR_FORMAT)
string(APPEND CMAKE_CXX_FLAGS " -Werror=format")
endif()
check_cxx_compiler_flag("-Werror=cast-function-type" HAS_WERROR_CAST_FUNCTION_TYPE)
if(HAS_WERROR_CAST_FUNCTION_TYPE)
string(APPEND CMAKE_CXX_FLAGS " -Werror=cast-function-type")
endif()
endif()
if(USE_ASAN)
string(APPEND CMAKE_CXX_FLAGS_DEBUG " -fsanitize=address")
string(APPEND CMAKE_LINKER_FLAGS_DEBUG " -fsanitize=address")
endif()
if(CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64")
include(CheckCSourceCompiles)
check_c_source_compiles("#include <arm_neon.h>
int main() {
float a[] = {1.0, 1.0};
float32x4x2_t v;
v.val[0] = vcombine_f32 (vcreate_f32 (0UL), vcreate_f32 (0UL));
v.val[1] = vcombine_f32 (vcreate_f32 (0UL), vcreate_f32 (0UL));
vst1q_f32_x2(a, v);
return 0;
}" HAS_VST1)
if(NOT HAS_VST1)
string(APPEND CMAKE_CXX_FLAGS " -DMISSING_ARM_VST1")
endif()
endif()
if(CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64")
include(CheckCSourceCompiles)
check_c_source_compiles("#include <arm_neon.h>
int main() {
float a[] = {1.0, 1.0};
vld1q_f32_x2(a);
return 0;
}" HAS_VLD1)
if(NOT HAS_VLD1)
string(APPEND CMAKE_CXX_FLAGS " -DMISSING_ARM_VLD1")
endif()
endif()
# Add code coverage flags to supported compilers
if(USE_CPP_CODE_COVERAGE)
if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
string(APPEND CMAKE_C_FLAGS " --coverage -fprofile-abs-path")
string(APPEND CMAKE_CXX_FLAGS " --coverage -fprofile-abs-path")
elseif("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
string(APPEND CMAKE_C_FLAGS " -fprofile-instr-generate -fcoverage-mapping")
string(APPEND CMAKE_CXX_FLAGS " -fprofile-instr-generate -fcoverage-mapping")
else()
message(ERROR "Code coverage for compiler ${CMAKE_CXX_COMPILER_ID} is unsupported")
endif()
endif()
if(APPLE)
if(USE_MLCOMPUTE)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DUSE_MLCOMPUTE -fobjc-arc -framework MLCompute -framework Metal")
endif()
string(APPEND CMAKE_CXX_FLAGS " -Wno-unused-private-field")
string(APPEND CMAKE_CXX_FLAGS " -Wno-missing-braces")
string(APPEND CMAKE_CXX_FLAGS " -Wno-c++14-extensions")
string(APPEND CMAKE_CXX_FLAGS " -Wno-constexpr-not-const")
endif()
if(EMSCRIPTEN)
string(APPEND CMAKE_CXX_FLAGS " -Wno-implicit-function-declaration -DEMSCRIPTEN -s DISABLE_EXCEPTION_CATCHING=0")
endif()
if(CMAKE_COMPILER_IS_GNUCXX AND CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 7.0.0)
string(APPEND CMAKE_CXX_FLAGS " -Wno-stringop-overflow")
endif()
if(ANDROID AND (NOT ANDROID_DEBUG_SYMBOLS))
if(CMAKE_COMPILER_IS_GNUCXX)
string(APPEND CMAKE_CXX_FLAGS " -s")
elseif("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
string(APPEND CMAKE_CXX_FLAGS " -g0")
else()
string(APPEND CMAKE_EXE_LINKER_FLAGS " -s")
endif()
endif()
if(NOT APPLE AND UNIX)
list(APPEND Caffe2_DEPENDENCY_LIBS dl)
endif()
# Prefix path to Caffe2 headers.
# If a directory containing installed Caffe2 headers was inadvertently
# added to the list of include directories, prefixing
# PROJECT_SOURCE_DIR means this source tree always takes precedence.
include_directories(BEFORE ${PROJECT_SOURCE_DIR})
# Prefix path to generated Caffe2 headers.
# These need to take precedence over their empty counterparts located
# in PROJECT_SOURCE_DIR.
include_directories(BEFORE ${PROJECT_BINARY_DIR})
include_directories(BEFORE ${PROJECT_SOURCE_DIR}/aten/src/)
include_directories(BEFORE ${PROJECT_BINARY_DIR}/aten/src/)
# ---[ Main build
add_subdirectory(c10)
add_subdirectory(caffe2)
# --[ Documentation
if(BUILD_DOCS)
# check if Doxygen is installed
find_package(Doxygen)
if(DOXYGEN_FOUND)
message("Generating documentation")
set(DOXYGEN_C_IN ${CMAKE_CURRENT_SOURCE_DIR}/docs/caffe2/.Doxyfile-c)
set(DOXYGEN_C_OUT ${CMAKE_CURRENT_SOURCE_DIR}/docs/caffe2/Doxyfile-c)
set(DOXYGEN_P_IN ${CMAKE_CURRENT_SOURCE_DIR}/docs/caffe2/.Doxyfile-python)
set(DOXYGEN_P_OUT ${CMAKE_CURRENT_SOURCE_DIR}/docs/caffe2/Doxyfile-python)
if(EXISTS ${CMAKE_CURRENT_BINARY_DIR}/docs)
file(REMOVE_RECURSE ${CMAKE_CURRENT_BINARY_DIR}/docs)
endif()
file(MAKE_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/docs)
configure_file(${DOXYGEN_C_IN} ${DOXYGEN_C_OUT} @ONLY)
configure_file(${DOXYGEN_P_IN} ${DOXYGEN_P_OUT} @ONLY)
add_custom_target(doc_doxygen_c ALL
COMMAND ${DOXYGEN_EXECUTABLE} ${DOXYGEN_C_OUT}
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
COMMENT "Generating C++ API documentation with Doxygen"
VERBATIM)
add_custom_target(doc_doxygen_python ALL
COMMAND ${DOXYGEN_EXECUTABLE} ${DOXYGEN_P_OUT}
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
COMMENT "Generating Python API documentation with Doxygen"
VERBATIM)
else()
message(FATAL_ERROR "Doxygen needs to be installed to generate the documentation")
endif()
endif()
# ---[ CMake related files
# Uninistall option.
if(NOT TARGET caffe2_uninstall)
configure_file(
${CMAKE_CURRENT_SOURCE_DIR}/cmake/cmake_uninstall.cmake.in
${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake
IMMEDIATE @ONLY)
add_custom_target(caffe2_uninstall
COMMAND ${CMAKE_COMMAND} -P
${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake)
endif()
# ---[ Make configuration files for cmake to allow dependent libraries
# easier access to Caffe2.
if((NOT USE_GLOG) OR (NOT USE_GFLAGS) OR BUILD_CUSTOM_PROTOBUF)
message(WARNING
"Generated cmake files are only fully tested if one builds "
"with system glog, gflags, and protobuf. Other settings may "
"generate files that are not well tested.")
endif()
if(USE_CUDA OR USE_ROCM)
# TODO: check if we should include other cuda dependency libraries
# to the interface as well.
endif()
# Note(jiayq): when building static libraries, all PRIVATE dependencies
# will also become interface libraries, and as a result if there are any
# dependency libraries that are not exported, the following install export
# script will fail. As a result, we will only provide the targets cmake
# files for shared lib installation. For more info, read:
# https://cmake.org/pipermail/cmake/2016-May/063400.html
if(BUILD_SHARED_LIBS)
configure_file(
${PROJECT_SOURCE_DIR}/cmake/Caffe2ConfigVersion.cmake.in
${PROJECT_BINARY_DIR}/Caffe2ConfigVersion.cmake
@ONLY)
configure_file(
${PROJECT_SOURCE_DIR}/cmake/Caffe2Config.cmake.in
${PROJECT_BINARY_DIR}/Caffe2Config.cmake
@ONLY)
install(FILES
${PROJECT_BINARY_DIR}/Caffe2ConfigVersion.cmake