flags.cmake 7.5 KB
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# Setting Paddle Compile Flags
include(CheckCXXCompilerFlag)
include(CheckCCompilerFlag)
include(CheckCXXSymbolExists)
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include(CheckTypeSize)
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function(CheckCompilerCXX11Flag)
    if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
        if(${CMAKE_CXX_COMPILER_VERSION} VERSION_LESS 4.8)
            message(FATAL_ERROR "Unsupported GCC version. GCC >= 4.8 required.")
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        elseif(${CMAKE_CXX_COMPILER_VERSION} VERSION_GREATER 8.2)
            message(WARNING "Found GCC ${CMAKE_CXX_COMPILER_VERSION} which is too high, recommended to use GCC 8.2")
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        endif()
    elseif(CMAKE_CXX_COMPILER_ID STREQUAL "AppleClang" OR CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
        # cmake >= 3.0 compiler id "AppleClang" on Mac OS X, otherwise "Clang"
        # Apple Clang is a different compiler than upstream Clang which havs different version numbers.
        # https://gist.github.com/yamaya/2924292
        if(APPLE)  # cmake < 3.0 compiler id "Clang" on Mac OS X
            if(${CMAKE_CXX_COMPILER_VERSION} VERSION_LESS 5.1)
                message(FATAL_ERROR "Unsupported AppleClang version. AppleClang >= 5.1 required.")
            endif()
        else()
            if (${CMAKE_CXX_COMPILER_VERSION} VERSION_LESS 3.3)
                message(FATAL_ERROR "Unsupported Clang version. Clang >= 3.3 required.")
            endif()
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        endif()
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    endif()
endfunction()

CheckCompilerCXX11Flag()
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if (WITH_GPU)
    if (${CMAKE_CUDA_COMPILER_VERSION} GREATER_EQUAL 11.0)
       set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14")
    else()
      set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
    endif()
else()
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
endif()
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# safe_set_flag
#
# Set a compile flag only if compiler is support
# is_c: is C flag or C++ flag, bool type.
# src_list: The list name which the flag name will be append to.
# flag_name: the flag name for compiler, such as '-Werror' '-Wall' etc
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# rest arguments: not used.
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function(safe_set_flag is_c src_list flag_name)
    string(REPLACE "-" "_" safe_name ${flag_name})
    string(REPLACE "=" "_" safe_name ${safe_name})
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    if(${flag_name} MATCHES "fsanitize")
        set(CMAKE_REQUIRED_FLAGS_RETAINED ${CMAKE_REQUIRED_FLAGS})
        set(CMAKE_REQUIRED_FLAGS ${flag_name})
    endif()

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    if(is_c)
        CHECK_C_COMPILER_FLAG(${flag_name} C_COMPILER_SUPPORT_FLAG_${safe_name})
        set(safe_name C_COMPILER_SUPPORT_FLAG_${safe_name})
    else()
        CHECK_CXX_COMPILER_FLAG(${flag_name} CXX_COMPILER_SUPPORT_FLAG_${safe_name})
        set(safe_name CXX_COMPILER_SUPPORT_FLAG_${safe_name})
    endif()
    if(${safe_name})
        set(${src_list} "${${src_list}} ${flag_name}" PARENT_SCOPE)
    endif()
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    if(${flag_name} MATCHES "fsanitize")
        set(CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS_RETAINED})
    endif()
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endfunction()

# helper macro to set cflag
macro(safe_set_cflag src_list flag_name)
    safe_set_flag(ON ${src_list} ${flag_name})
endmacro()

# helper macro to set cxxflag
macro(safe_set_cxxflag src_list flag_name)
    safe_set_flag(OFF ${src_list} ${flag_name})
endmacro()

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# helper macro to set nvcc flag
macro(safe_set_nvflag flag_name)
    string(REPLACE "-" "_" safe_name ${flag_name})
    string(REPLACE "=" "_" safe_name ${safe_name})
    CHECK_C_COMPILER_FLAG(${flag_name} C_COMPILER_SUPPORT_FLAG_${safe_name})
    set(safe_name C_COMPILER_SUPPORT_FLAG_${safe_name})
    if(${safe_name})
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        set(SAFE_GPU_COMMON_FLAGS "${SAFE_GPU_COMMON_FLAGS} -Xcompiler=\"${flag_name}\"")
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    endif()
endmacro()


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CHECK_CXX_SYMBOL_EXISTS(UINT64_MAX "stdint.h" UINT64_MAX_EXISTS)
if(NOT UINT64_MAX_EXISTS)
  set(CMAKE_REQUIRED_DEFINITIONS -D__STDC_LIMIT_MACROS)
  CHECK_CXX_SYMBOL_EXISTS(UINT64_MAX "stdint.h" UINT64_MAX_EXISTS_HERE)
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  if(UINT64_MAX_EXISTS_HERE)
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    set(CMAKE_REQUIRED_DEFINITIONS)
    add_definitions(-D__STDC_LIMIT_MACROS)
  else()
    message(FATAL_ERROR "Cannot find symbol UINT64_MAX")
  endif()
endif()

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SET(CMAKE_EXTRA_INCLUDE_FILES "pthread.h")
CHECK_TYPE_SIZE(pthread_spinlock_t SPINLOCK_FOUND)
CHECK_TYPE_SIZE(pthread_barrier_t BARRIER_FOUND)
if(SPINLOCK_FOUND)
  add_definitions(-DPADDLE_USE_PTHREAD_SPINLOCK)
endif(SPINLOCK_FOUND)
if(BARRIER_FOUND)
  add_definitions(-DPADDLE_USE_PTHREAD_BARRIER)
endif(BARRIER_FOUND)
SET(CMAKE_EXTRA_INCLUDE_FILES "")

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# Only one sanitizer is allowed in compile time
string(TOLOWER "${SANITIZER_TYPE}" sanitizer_type)
if(sanitizer_type STREQUAL "address")
    set(fsanitize "-fsanitize=address")
elseif(sanitizer_type STREQUAL "leak")
    set(fsanitize "-fsanitize=leak")
elseif(sanitizer_type STREQUAL "memory")
    set(fsanitize "-fsanitize=memory")
elseif(sanitizer_type STREQUAL "thread")
    set(fsanitize "-fsanitize=thread")
elseif(sanitizer_type STREQUAL "undefined")
    set(fsanitize "-fsanitize=undefined")
endif()

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# Common flags. the compiler flag used for C/C++ sources whenever release or debug
# Do not care if this flag is support for gcc.
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# https://github.com/PaddlePaddle/Paddle/issues/12773
if (NOT WIN32)
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set(COMMON_FLAGS
    -fPIC
    -fno-omit-frame-pointer
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    -Werror
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    -Wall
    -Wextra
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    -Wnon-virtual-dtor
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    -Wdelete-non-virtual-dtor
    -Wno-unused-parameter
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    -Wno-unused-function
    -Wno-error=literal-suffix
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    -Wno-error=unused-local-typedefs
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    -Wno-error=parentheses-equality # Warnings in pybind11
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    -Wno-error=ignored-attributes  # Warnings in Eigen, gcc 6.3
    -Wno-error=terminate  # Warning in PADDLE_ENFORCE
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    -Wno-error=int-in-bool-context # Warning in Eigen gcc 7.2
    -Wimplicit-fallthrough=0 # Warning in tinyformat.h
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    -Wno-error=maybe-uninitialized # Warning in boost gcc 7.2
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    ${fsanitize}
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)
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if(NOT APPLE)
    if(${CMAKE_CXX_COMPILER_VERSION} VERSION_GREATER 8.0)
        set(COMMON_FLAGS
                ${COMMON_FLAGS}
                -Wno-format-truncation # Warning in boost gcc 8.2
                -Wno-error=cast-function-type # Warning in boost gcc 8.2
                -Wno-error=parentheses # Warning in boost gcc 8.2
                -Wno-error=catch-value # Warning in boost gcc 8.2
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                -Wno-error=nonnull-compare # Warning in boost gcc 8.2
                -Wno-error=address # Warning in boost gcc 8.2
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                -Wno-ignored-qualifiers # Warning in boost gcc 8.2
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                -Wno-ignored-attributes # Warning in Eigen gcc 8.3
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                -Wno-parentheses # Warning in Eigen gcc 8.3
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                )
    endif()
endif(NOT APPLE)

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set(GPU_COMMON_FLAGS
    -fPIC
    -fno-omit-frame-pointer
    -Wnon-virtual-dtor
    -Wdelete-non-virtual-dtor
    -Wno-unused-parameter
    -Wno-unused-function
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    -Wno-error=literal-suffix
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    -Wno-error=unused-local-typedefs
    -Wno-error=unused-function  # Warnings in Numpy Header.
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    -Wno-error=array-bounds # Warnings in Eigen::array
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)
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if (NOT WITH_NV_JETSON AND NOT WITH_ARM)
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  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -m64")
endif()
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endif(NOT WIN32)

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if (APPLE)
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    # On Mac OS X build fat binaries with x86_64 architectures by default.
    set (CMAKE_OSX_ARCHITECTURES "x86_64" CACHE STRING "Build architectures for OSX" FORCE)
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    # On Mac OS X register class specifier is deprecated and will cause warning error on latest clang 10.0
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    set (COMMON_FLAGS -Wno-deprecated-register)
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endif(APPLE)

if(LINUX)
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    set(GPU_COMMON_FLAGS
        -Wall
        -Wextra
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        -Werror
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        ${GPU_COMMON_FLAGS})
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endif(LINUX)
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foreach(flag ${COMMON_FLAGS})
    safe_set_cflag(CMAKE_C_FLAGS ${flag})
    safe_set_cxxflag(CMAKE_CXX_FLAGS ${flag})
endforeach()

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set(SAFE_GPU_COMMON_FLAGS "")
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foreach(flag ${GPU_COMMON_FLAGS})
    safe_set_nvflag(${flag})
endforeach()
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set(CMAKE_CUDA_FLAGS "${CMAKE_CUDA_FLAGS} ${SAFE_GPU_COMMON_FLAGS}")