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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)
include(cmake/message.cmake)
include(cmake/cpu.cmake)
include(cmake/ccache.cmake)
##############################################################################
# VPP Version
##############################################################################
execute_process(
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
COMMAND scripts/version
OUTPUT_VARIABLE VPP_VERSION
OUTPUT_STRIP_TRAILING_WHITESPACE
)
string(REPLACE "-" ";" VPP_LIB_VERSION ${VPP_VERSION})
list(GET VPP_LIB_VERSION 0 VPP_LIB_VERSION)
##############################################################################
# cross compiling
##############################################################################
if(CMAKE_CROSSCOMPILING)
set(CMAKE_IGNORE_PATH
/usr/lib/${CMAKE_HOST_SYSTEM_PROCESSOR}-linux-gnu/
/usr/lib/${CMAKE_HOST_SYSTEM_PROCESSOR}-linux-gnu/lib/
)
endif()
set(CMAKE_C_COMPILER_TARGET ${CMAKE_SYSTEM_PROCESSOR}-linux-gnu)
##############################################################################
# build config
##############################################################################
check_c_compiler_flag("-Wno-address-of-packed-member"
compiler_flag_no_address_of_packed_member)
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
if (CMAKE_BUILD_TYPE)
set(CMAKE_C_FLAGS "-g -fPIC ${CMAKE_C_FLAGS}")
set(CMAKE_C_FLAGS "-fstack-protector-all ${CMAKE_C_FLAGS}")
set(CMAKE_C_FLAGS "-Werror ${CMAKE_C_FLAGS}")
set(CMAKE_C_FLAGS "-DFORTIFY_SOURCE=2 ${CMAKE_C_FLAGS}")
endif()
if (compiler_flag_no_address_of_packed_member)
set(CMAKE_C_FLAGS "-Wno-address-of-packed-member ${CMAKE_C_FLAGS}")
endif()
set(CMAKE_C_FLAGS_RELEASE "-O2 ${CMAKE_C_FLAGS_RELEASE}")
set(CMAKE_C_FLAGS_DEBUG "-O0 -DCLIB_DEBUG ${CMAKE_C_FLAGS_DEBUG}")
set(CMAKE_LINKER_FLAGS_RELEASE "-pie -Wl,-z,now ${CMAKE_LINKER_FLAGS_RELEASE}")
string(TOUPPER "${CMAKE_BUILD_TYPE}" CMAKE_BUILD_TYPE_UC)
##############################################################################
# install config
##############################################################################
set(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/lib")
set(CMAKE_INSTALL_MESSAGE NEVER)
include_directories (
${CMAKE_SOURCE_DIR}
${CMAKE_BINARY_DIR}
${CMAKE_BINARY_DIR}/include
)
set(CMAKE_INSTALL_DEFAULT_COMPONENT_NAME "vpp")
set(THREADS_PREFER_PTHREAD_FLAG ON)
find_package(Threads REQUIRED)
include(cmake/memfd.cmake)
include(cmake/api.cmake)
include(cmake/library.cmake)
include(cmake/exec.cmake)
include(cmake/plugin.cmake)
##############################################################################
# subdirs - order matters
##############################################################################
if("${CMAKE_SYSTEM_NAME}" STREQUAL "Linux")
find_package(OpenSSL REQUIRED)
set(SUBDIRS
vppinfra svm vlib vlibmemory vlibapi vnet vpp vat vcl plugins
vpp-api tools/vppapigen tools/g2 tools/elftool tools/perftool cmake pkg
)
elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "Darwin")
set(SUBDIRS vppinfra)
else()
message(FATAL_ERROR "Unsupported system: ${CMAKE_SYSTEM_NAME}")
endif()
foreach(DIR ${SUBDIRS})
add_subdirectory(${DIR})
endforeach()
##############################################################################
# packaging
##############################################################################
include(cmake/pack.cmake)
add_vpp_packaging(
NAME "vpp"
VENDOR "fd.io"
DESCRIPTION "Vector Packet Processor"
)
##############################################################################
# detect if we are inside git repo and add configure dependency
##############################################################################
execute_process(
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
COMMAND git rev-parse --show-toplevel
OUTPUT_VARIABLE VPP_GIT_TOPLEVEL_DIR
OUTPUT_STRIP_TRAILING_WHITESPACE
)
if (VPP_GIT_TOPLEVEL_DIR)
set_property(
DIRECTORY APPEND PROPERTY
CMAKE_CONFIGURE_DEPENDS ${VPP_GIT_TOPLEVEL_DIR}/.git/index
)
endif()
##############################################################################
# print configuration
##############################################################################
message(STATUS "Configuration:")
pr("VPP version" "${VPP_VERSION}")
pr("VPP library version" "${VPP_LIB_VERSION}")
pr("GIT toplevel dir" "${VPP_GIT_TOPLEVEL_DIR}")
pr("Build type" "${CMAKE_BUILD_TYPE}")
pr("C flags" "${CMAKE_C_FLAGS}${CMAKE_C_FLAGS_${CMAKE_BUILD_TYPE_UC}}")
pr("Linker flags" "${CMAKE_LINKER_FLAGS}${CMAKE_LINKER_FLAGS_${CMAKE_BUILD_TYPE_UC}}")
pr("Host processor" "${CMAKE_HOST_SYSTEM_PROCESSOR}")
pr("Target processor" "${CMAKE_SYSTEM_PROCESSOR}")
pr("Prefix path" "${CMAKE_PREFIX_PATH}")
pr("Install prefix" "${CMAKE_INSTALL_PREFIX}")
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