src/CMakeLists.txt - fdio/vpp - Gitiles

 # 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 3.10)

 set(CMAKE_C_COMPILER_NAMES
   clang-12
   clang-11
   clang-10
   clang-9
   gcc-10
   gcc-9
   cc
 )

 project(vpp C)

 include(CheckCCompilerFlag)
 include(CheckIPOSupported)
 include(cmake/misc.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(VPP_RUNTIME_DIR "bin" CACHE STRING "Relative runtime directory path")
 set(VPP_LIBRARY_DIR "lib" CACHE STRING "Relative library directory path")

 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/${VPP_RUNTIME_DIR})
 set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/${VPP_LIBRARY_DIR})
 set(VPP_BINARY_DIR ${CMAKE_BINARY_DIR}/CMakeFiles)

 if (CMAKE_BUILD_TYPE)
   set(CMAKE_C_FLAGS "-g -fPIC -Werror -Wall ${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()

 # release
 list(APPEND BUILD_TYPES "release")
 string(CONCAT CMAKE_C_FLAGS_RELEASE
   "-O3 "
   "-fstack-protector "
   "-D_FORTIFY_SOURCE=2 "
   "-fno-common "
 )

 string(CONCAT CMAKE_EXE_LINKER_FLAGS_RELEASE "-pie")

 # debug
 list(APPEND BUILD_TYPES "debug")
 string(CONCAT CMAKE_C_FLAGS_DEBUG
   "-O0 "
   "-DCLIB_DEBUG "
   "-fstack-protector "
   "-fno-common "
 )

 # coverity
 list(APPEND BUILD_TYPES "coverity")
 string(CONCAT CMAKE_C_FLAGS_COVERITY "-O2 -D__COVERITY__")

 # gcov
 list(APPEND BUILD_TYPES "gcov")
 string(CONCAT CMAKE_C_FLAGS_GCOV
   "-O0 "
   "-DCLIB_DEBUG "
   "-DCLIB_GCOV "
   "-fprofile-arcs "
   "-ftest-coverage ")

 string(TOUPPER "${CMAKE_BUILD_TYPE}" CMAKE_BUILD_TYPE_UC)


 string(REPLACE ";" " " BUILD_TYPES "${BUILD_TYPES}")
 set_property(CACHE CMAKE_BUILD_TYPE PROPERTY
 	     HELPSTRING "Build type - valid options are: ${BUILD_TYPES}")

 ##############################################################################
 # link time optimizations
 ##############################################################################
 if (CMAKE_BUILD_TYPE_UC STREQUAL "RELEASE")
   check_ipo_supported(RESULT _result)
   if (_result)
     option(VPP_USE_LTO "Link time optimization of release binaries" ON)
   endif()
 endif()

 ##############################################################################
 # sanitizers
 ##############################################################################

 option(VPP_ENABLE_SANITIZE_ADDR "Enable Address Sanitizer" OFF)
 set(VPP_SANITIZE_ADDR_OPTIONS
   "unmap_shadow_on_exit=1:disable_coredump=0:abort_on_error=1:detect_leaks=0"
   CACHE
   STRING "Address sanitizer arguments"
 )

 if (VPP_ENABLE_SANITIZE_ADDR)
   set(CMAKE_C_FLAGS "-fsanitize=address -DCLIB_SANITIZE_ADDR ${CMAKE_C_FLAGS}")
   set(CMAKE_EXE_LINKER_FLAGS "-fsanitize=address ${CMAKE_EXE_LINKER_FLAGS}")
   set(CMAKE_SHARED_LINKER_FLAGS "-fsanitize=address ${CMAKE_SHARED_LINKER_FLAGS}")
 endif (VPP_ENABLE_SANITIZE_ADDR)

 ##############################################################################
 # install config
 ##############################################################################
 option(VPP_SET_RPATH "Set rpath for resulting binaries and libraries." ON)
 if(VPP_SET_RPATH)
   set(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/lib")
 endif()
 set(CMAKE_INSTALL_MESSAGE NEVER)

 include_directories (
 	${CMAKE_SOURCE_DIR}
 	${VPP_BINARY_DIR}
 )
 set(CMAKE_INSTALL_DEFAULT_COMPONENT_NAME "vpp")

 set(THREADS_PREFER_PTHREAD_FLAG ON)
 find_package(Threads REQUIRED)

 include(cmake/syscall.cmake)
 include(cmake/api.cmake)
 include(cmake/library.cmake)
 include(cmake/exec.cmake)
 include(cmake/plugin.cmake)

 ##############################################################################
 # subdirs - order matters
 ##############################################################################
 option(VPP_HOST_TOOLS_ONLY "Build only host tools" OFF)
 if(VPP_HOST_TOOLS_ONLY)
   set(SUBDIRS tools/vppapigen cmake)
 elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "Linux")
   find_package(OpenSSL REQUIRED)
   set(SUBDIRS
     vppinfra svm vlib vlibmemory vlibapi vnet vpp vat vat2 vcl plugins
     vpp-api tools/vppapigen tools/g2 tools/perftool cmake pkg
     tools/appimage
   )
 elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "Darwin")
   set(SUBDIRS vppinfra)
 else()
   message(FATAL_ERROR "Unsupported system: ${CMAKE_SYSTEM_NAME}")
 endif()

 foreach(DIR ${SUBDIRS})
   add_subdirectory(${DIR} ${VPP_BINARY_DIR}/${DIR})
 endforeach()

 ##############################################################################
 # 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
   ERROR_QUIET
 )

 if (VPP_GIT_TOPLEVEL_DIR)
   set_property(
     DIRECTORY APPEND PROPERTY
     CMAKE_CONFIGURE_DEPENDS ${VPP_GIT_TOPLEVEL_DIR}/.git/index
   )
 endif()

 ##############################################################################
 # custom targets
 ##############################################################################

 add_custom_target(run
   COMMAND ./${VPP_RUNTIME_DIR}/vpp -c startup.conf
   COMMENT "Starting VPP..."
   USES_TERMINAL
 )

 add_custom_target(debug
   COMMAND gdb --args ./${VPP_RUNTIME_DIR}/vpp -c startup.conf
   COMMENT "Starting VPP in the debugger..."
   USES_TERMINAL
 )

 add_custom_target(menu
   COMMAND ccmake ${CMAKE_BINARY_DIR}
   COMMENT "Starting Configuration TUI..."
   USES_TERMINAL
 )

 add_custom_target(compdb
   COMMAND ninja -C ${CMAKE_BINARY_DIR} -t compdb |
           ${CMAKE_SOURCE_DIR}/scripts/compdb_cleanup.py >
 	  ${CMAKE_BINARY_DIR}/compile_commands.json
   COMMENT "Generating compile_commands.json"
   USES_TERMINAL
 )

 ##############################################################################
 # 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_${CMAKE_BUILD_TYPE_UC}}")
 pr("Linker flags (apps)" "${CMAKE_EXE_LINKER_FLAGS}${CMAKE_EXE_LINKER_FLAGS_${CMAKE_BUILD_TYPE_UC}}")
 pr("Linker flags (libs)" "${CMAKE_SHARED_LINKER_FLAGS}${CMAKE_SHARED_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}")
	# 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 3.10)

	set(CMAKE_C_COMPILER_NAMES
	clang-12
	clang-11
	clang-10
	clang-9
	gcc-10
	gcc-9
	cc
	)

	project(vpp C)

	include(CheckCCompilerFlag)
	include(CheckIPOSupported)
	include(cmake/misc.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(VPP_RUNTIME_DIR "bin" CACHE STRING "Relative runtime directory path")
	set(VPP_LIBRARY_DIR "lib" CACHE STRING "Relative library directory path")

	set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/${VPP_RUNTIME_DIR})
	set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/${VPP_LIBRARY_DIR})
	set(VPP_BINARY_DIR ${CMAKE_BINARY_DIR}/CMakeFiles)

	if (CMAKE_BUILD_TYPE)
	set(CMAKE_C_FLAGS "-g -fPIC -Werror -Wall ${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()

	# release
	list(APPEND BUILD_TYPES "release")
	string(CONCAT CMAKE_C_FLAGS_RELEASE
	"-O3 "
	"-fstack-protector "
	"-D_FORTIFY_SOURCE=2 "
	"-fno-common "
	)

	string(CONCAT CMAKE_EXE_LINKER_FLAGS_RELEASE "-pie")

	# debug
	list(APPEND BUILD_TYPES "debug")
	string(CONCAT CMAKE_C_FLAGS_DEBUG
	"-O0 "
	"-DCLIB_DEBUG "
	"-fstack-protector "
	"-fno-common "
	)

	# coverity
	list(APPEND BUILD_TYPES "coverity")
	string(CONCAT CMAKE_C_FLAGS_COVERITY "-O2 -D__COVERITY__")

	# gcov
	list(APPEND BUILD_TYPES "gcov")
	string(CONCAT CMAKE_C_FLAGS_GCOV
	"-O0 "
	"-DCLIB_DEBUG "
	"-DCLIB_GCOV "
	"-fprofile-arcs "
	"-ftest-coverage ")

	string(TOUPPER "${CMAKE_BUILD_TYPE}" CMAKE_BUILD_TYPE_UC)


	string(REPLACE ";" " " BUILD_TYPES "${BUILD_TYPES}")
	set_property(CACHE CMAKE_BUILD_TYPE PROPERTY
	HELPSTRING "Build type - valid options are: ${BUILD_TYPES}")

	##############################################################################
	# link time optimizations
	##############################################################################
	if (CMAKE_BUILD_TYPE_UC STREQUAL "RELEASE")
	check_ipo_supported(RESULT _result)
	if (_result)
	option(VPP_USE_LTO "Link time optimization of release binaries" ON)
	endif()
	endif()

	##############################################################################
	# sanitizers
	##############################################################################

	option(VPP_ENABLE_SANITIZE_ADDR "Enable Address Sanitizer" OFF)
	set(VPP_SANITIZE_ADDR_OPTIONS
	"unmap_shadow_on_exit=1:disable_coredump=0:abort_on_error=1:detect_leaks=0"
	CACHE
	STRING "Address sanitizer arguments"
	)

	if (VPP_ENABLE_SANITIZE_ADDR)
	set(CMAKE_C_FLAGS "-fsanitize=address -DCLIB_SANITIZE_ADDR ${CMAKE_C_FLAGS}")
	set(CMAKE_EXE_LINKER_FLAGS "-fsanitize=address ${CMAKE_EXE_LINKER_FLAGS}")
	set(CMAKE_SHARED_LINKER_FLAGS "-fsanitize=address ${CMAKE_SHARED_LINKER_FLAGS}")
	endif (VPP_ENABLE_SANITIZE_ADDR)

	##############################################################################
	# install config
	##############################################################################
	option(VPP_SET_RPATH "Set rpath for resulting binaries and libraries." ON)
	if(VPP_SET_RPATH)
	set(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/lib")
	endif()
	set(CMAKE_INSTALL_MESSAGE NEVER)

	include_directories (
	${CMAKE_SOURCE_DIR}
	${VPP_BINARY_DIR}
	)
	set(CMAKE_INSTALL_DEFAULT_COMPONENT_NAME "vpp")

	set(THREADS_PREFER_PTHREAD_FLAG ON)
	find_package(Threads REQUIRED)

	include(cmake/syscall.cmake)
	include(cmake/api.cmake)
	include(cmake/library.cmake)
	include(cmake/exec.cmake)
	include(cmake/plugin.cmake)

	##############################################################################
	# subdirs - order matters
	##############################################################################
	option(VPP_HOST_TOOLS_ONLY "Build only host tools" OFF)
	if(VPP_HOST_TOOLS_ONLY)
	set(SUBDIRS tools/vppapigen cmake)
	elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "Linux")
	find_package(OpenSSL REQUIRED)
	set(SUBDIRS
	vppinfra svm vlib vlibmemory vlibapi vnet vpp vat vat2 vcl plugins
	vpp-api tools/vppapigen tools/g2 tools/perftool cmake pkg
	tools/appimage
	)
	elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "Darwin")
	set(SUBDIRS vppinfra)
	else()
	message(FATAL_ERROR "Unsupported system: ${CMAKE_SYSTEM_NAME}")
	endif()

	foreach(DIR ${SUBDIRS})
	add_subdirectory(${DIR} ${VPP_BINARY_DIR}/${DIR})
	endforeach()

	##############################################################################
	# 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
	ERROR_QUIET
	)

	if (VPP_GIT_TOPLEVEL_DIR)
	set_property(
	DIRECTORY APPEND PROPERTY
	CMAKE_CONFIGURE_DEPENDS ${VPP_GIT_TOPLEVEL_DIR}/.git/index
	)
	endif()

	##############################################################################
	# custom targets
	##############################################################################

	add_custom_target(run
	COMMAND ./${VPP_RUNTIME_DIR}/vpp -c startup.conf
	COMMENT "Starting VPP..."
	USES_TERMINAL
	)

	add_custom_target(debug
	COMMAND gdb --args ./${VPP_RUNTIME_DIR}/vpp -c startup.conf
	COMMENT "Starting VPP in the debugger..."
	USES_TERMINAL
	)

	add_custom_target(menu
	COMMAND ccmake ${CMAKE_BINARY_DIR}
	COMMENT "Starting Configuration TUI..."
	USES_TERMINAL
	)

	add_custom_target(compdb
	COMMAND ninja -C ${CMAKE_BINARY_DIR} -t compdb \|
	${CMAKE_SOURCE_DIR}/scripts/compdb_cleanup.py >
	${CMAKE_BINARY_DIR}/compile_commands.json
	COMMENT "Generating compile_commands.json"
	USES_TERMINAL
	)

	##############################################################################
	# 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_${CMAKE_BUILD_TYPE_UC}}")
	pr("Linker flags (apps)" "${CMAKE_EXE_LINKER_FLAGS}${CMAKE_EXE_LINKER_FLAGS_${CMAKE_BUILD_TYPE_UC}}")
	pr("Linker flags (libs)" "${CMAKE_SHARED_LINKER_FLAGS}${CMAKE_SHARED_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}")