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# Copyright (c) 2018 Cisco and/or its affiliates.
# 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.
cmake_minimum_required(VERSION 3.5 FATAL_ERROR)
project(vpp C)
include(CheckCCompilerFlag)
##############################################################################
# CPU optimizations and multiarch support
##############################################################################
if(CMAKE_SYSTEM_PROCESSOR MATCHES "amd64.*|x86_64.*|AMD64.*")
set(CMAKE_C_FLAGS "-march=corei7 -mtune=corei7-avx ${CMAKE_C_FLAGS}")
check_c_compiler_flag("-march=core-avx2" AVX2)
if(AVX2)
list(APPEND MARCH_VARIANTS "avx2\;-march=core-avx2 -mtune=core-avx2")
endif()
check_c_compiler_flag("-march=skylake-avx512" AVX512)
if(AVX512)
list(APPEND MARCH_VARIANTS "avx512\;-march=skylake-avx512 -mtune=skylake-avx512")
endif()
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(aarch64.*|AARCH64.*)")
set(CMAKE_C_FLAGS "-march=armv8-a+crc ${CMAKE_C_FLAGS}")
endif()
macro(vpp_library_set_multiarch_sources lib)
foreach(V ${MARCH_VARIANTS})
list(GET V 0 VARIANT)
list(GET V 1 VARIANT_FLAGS)
set(l ${lib}_${VARIANT})
add_library(${l} OBJECT ${ARGN})
set_target_properties(${l} PROPERTIES POSITION_INDEPENDENT_CODE ON)
target_compile_options(${l} PUBLIC "-DCLIB_MARCH_VARIANT=${VARIANT}")
separate_arguments(VARIANT_FLAGS)
target_compile_options(${l} PUBLIC ${VARIANT_FLAGS})
target_sources(${lib} PRIVATE $<TARGET_OBJECTS:${l}>)
endforeach()
endmacro()
##############################################################################
# build config
##############################################################################
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
set(CMAKE_C_FLAGS_COMMON "-DFORTIFY_SOURCE=2 -fstack-protector-all -Werror")
set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} ${CMAKE_C_FLAGS_COMMON} -DCLIB_DEBUG")
set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} ${CMAKE_C_FLAGS_COMMON}")
##############################################################################
# ccache
##############################################################################
option(VPP_USE_CCACHE "Use ccache compiler cache." ON)
if(VPP_USE_CCACHE)
find_program(CCACHE_FOUND ccache)
message(STATUS "Looking for ccache")
if(CCACHE_FOUND)
message(STATUS "Looking for ccache - found")
set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE ccache)
set_property(GLOBAL PROPERTY RULE_LAUNCH_LINK ccache)
else(CCACHE_FOUND)
message(STATUS "Looking for ccache - not found")
endif(CCACHE_FOUND)
endif(VPP_USE_CCACHE)
##############################################################################
# install config
##############################################################################
set(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/lib")
set(CMAKE_INSTALL_MESSAGE NEVER)
message(STATUS "CMAKE_C_FLAGS: ${CMAKE_C_FLAGS}")
message(STATUS "We are on a ${CMAKE_SYSTEM_NAME} system")
message(STATUS "The host processor is ${CMAKE_HOST_SYSTEM_PROCESSOR}")
include_directories (
${CMAKE_SOURCE_DIR}
${CMAKE_BINARY_DIR}
${CMAKE_BINARY_DIR}/include
)
set(CMAKE_INSTALL_DEFAULT_COMPONENT_NAME "vpp")
set(THREADS_PREFER_PTHREAD_FLAG ON)
find_package(Threads REQUIRED)
find_package(OpenSSL REQUIRED)
include_directories(${OPENSSL_INCLUDE_DIR})
add_definitions(-DHAVE_MEMFD_CREATE -DVPP_API_TEST_BUILTIN=1)
##############################################################################
# API
##############################################################################
function(vpp_generate_api_header file)
set (output_name ${CMAKE_CURRENT_BINARY_DIR}/${file}.h)
get_filename_component(output_dir ${output_name} DIRECTORY)
add_custom_command (OUTPUT ${output_name}
COMMAND mkdir -p ${output_dir}
COMMAND ${CMAKE_SOURCE_DIR}/tools/vppapigen/vppapigen
ARGS --includedir ${CMAKE_SOURCE_DIR} --input ${CMAKE_CURRENT_SOURCE_DIR}/${file} --output ${output_name}
DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/${file}
COMMENT "Generating API header ${file}.h"
)
endfunction()
function(vpp_add_api_files target)
unset(header_files)
foreach(file ${ARGN})
vpp_generate_api_header (${file})
list (APPEND header_files ${file}.h)
endforeach()
add_custom_target(${target} DEPENDS ${header_files})
endfunction()
add_custom_target(api_headers
DEPENDS vlibmemory_api_headers vnet_api_headers vpp_api_headers
)
##############################################################################
# header files
##############################################################################
function (vpp_add_header_files path)
foreach(file ${ARGN})
get_filename_component(dir ${file} DIRECTORY)
install(FILES ${file} DESTINATION include/${path}/${dir})
endforeach()
endfunction()
##############################################################################
# subdirs
##############################################################################
foreach (DIR vppinfra svm vlib vlibmemory vnet vpp vcl plugins)
add_subdirectory(${DIR})
endforeach ()
##############################################################################
# DEB Packaging
##############################################################################
set(CPACK_GENERATOR "DEB")
set(CPACK_DEBIAN_PACKAGE_MAINTAINER "VPP Team")
set(CPACK_PACKAGE_NAME "vpp")
set(CPACK_PACKAGE_VENDOR "fd.io")
set(CPACK_PACKAGE_VERSION "18.08")
set(CPACK_DEB_COMPONENT_INSTALL ON)
set(CPACK_COMPONENTS_IGNORE_GROUPS 1)
set(CPACK_DEBIAN_VPP_PACKAGE_NAME "vpp")
set(CPACK_DEBIAN_VPP_FILE_NAME "vpp.deb")
set(CPACK_DEBIAN_DEV_PACKAGE_NAME "vpp-dev")
set(CPACK_DEBIAN_DEV_FILE_NAME "vpp-dev.deb")
set(CPACK_DEBIAN_PLUGINS_PACKAGE_NAME "vpp-plugins")
set(CPACK_DEBIAN_PLUGINS_FILE_NAME "vpp-plugins.deb")
include(CPack)
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