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87 lines
2.7 KiB
87 lines
2.7 KiB
9 years ago
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# Setting Paddle Compile Flags
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include(CheckCXXCompilerFlag)
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include(CheckCCompilerFlag)
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include(CheckCXXSymbolExists)
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# safe_set_flag
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#
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# Set a compile flag only if compiler is support
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# is_c: is C flag or C++ flag, bool type.
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# src_list: The list name which the flag name will be append to.
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# 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)
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string(REPLACE "-" "_" safe_name ${flag_name})
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string(REPLACE "=" "_" safe_name ${safe_name})
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if(is_c)
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CHECK_C_COMPILER_FLAG(${flag_name} C_COMPILER_SUPPORT_FLAG_${safe_name})
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set(safe_name C_COMPILER_SUPPORT_FLAG_${safe_name})
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else()
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CHECK_CXX_COMPILER_FLAG(${flag_name} CXX_COMPILER_SUPPORT_FLAG_${safe_name})
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set(safe_name CXX_COMPILER_SUPPORT_FLAG_${safe_name})
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endif()
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if(${safe_name})
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set(${src_list} "${${src_list}} ${flag_name}" PARENT_SCOPE)
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if(is_c)
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set(CUDA_NVCC_FLAGS
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--compiler-options;${flag_name}
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${CUDA_NVCC_FLAGS}
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PARENT_SCOPE)
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endif()
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endif()
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endfunction()
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# helper macro to set cflag
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macro(safe_set_cflag src_list flag_name)
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safe_set_flag(ON ${src_list} ${flag_name})
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endmacro()
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# helper macro to set cxxflag
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macro(safe_set_cxxflag src_list flag_name)
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safe_set_flag(OFF ${src_list} ${flag_name})
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endmacro()
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CHECK_CXX_SYMBOL_EXISTS(UINT64_MAX "stdint.h" UINT64_MAX_EXISTS)
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if(NOT UINT64_MAX_EXISTS)
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set(CMAKE_REQUIRED_DEFINITIONS -D__STDC_LIMIT_MACROS)
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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)
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add_definitions(-D__STDC_LIMIT_MACROS)
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else()
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message(FATAL_ERROR "Cannot find symbol UINT64_MAX")
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endif()
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endif()
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# Common flags. the compiler flag used for C/C++ sources whenever release or debug
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# Do not care if this flag is support for gcc.
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set(COMMON_FLAGS
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-fPIC
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-fno-omit-frame-pointer
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-Wall
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-Wextra
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-Werror
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-Wnon-virtual-dtor
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-Wdelete-non-virtual-dtor
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-Wno-unused-parameter
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-Wno-error=literal-suffix
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-Wno-error=unused-local-typedefs)
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foreach(flag ${COMMON_FLAGS})
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safe_set_cflag(CMAKE_C_FLAGS ${flag})
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safe_set_cxxflag(CMAKE_CXX_FLAGS ${flag})
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endforeach()
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# Release/Debug flags set by cmake. Such as -O3 -g -DNDEBUG etc.
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# So, don't set these flags here.
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foreach(capability 30 35 50)
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list(APPEND __arch_flags "-gencode arch=compute_${capability},code=sm_${capability}")
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endforeach()
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if (CUDA_VERSION VERSION_GREATER "7.0")
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list(APPEND __arch_flags "-gencode arch=compute_52,code=sm_52")
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endif()
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set(CUDA_NVCC_FLAGS ${__arch_flags} ${CUDA_NVCC_FLAGS})
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