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#
# Copyright 2018 Ettus Research, a National Instruments Company
# Copyright 2020 Ettus Research, a National Instruments Brand
#
# SPDX-License-Identifier: GPL-3.0-or-later
#
# - Find DPDK
# Find the DPDK includes and client library
# This module defines
# DPDK_INCLUDE_DIRS, where to find rte_config.h and rte_version.h
# DPDK_LIBRARIES, the libraries needed by a DPDK user
# DPDK_FOUND, If false, do not try to use DPDK.
# also defined, but not for general use are
# DPDK_LIBRARY, where to find the DPDK library.
include(FindPackageHandleStandardArgs)
function(DPDK_READ_VERSION DPDK_VERSION DPDK_INCLUDE_DIRS)
if(NOT DPDK_INCLUDE_DIRS)
return()
endif()
file(READ "${DPDK_INCLUDE_DIRS}/rte_version.h"
DPDK_VERSION_STR
)
string(REGEX MATCH "#define RTE_VER_YEAR ([0-9]+)" _ ${DPDK_VERSION_STR})
set(DPDK_VERSION_MAJOR ${CMAKE_MATCH_1})
string(REGEX MATCH "#define RTE_VER_MONTH ([0-9]+)" _ ${DPDK_VERSION_STR})
set(DPDK_VERSION_MINOR ${CMAKE_MATCH_1})
set(DPDK_VERSION "${DPDK_VERSION_MAJOR}.${DPDK_VERSION_MINOR}" PARENT_SCOPE)
endfunction()
if(DPDK_LIBRARIES AND DPDK_INCLUDE_DIRS)
set(DPDK_USER_PROVIDED ON)
else()
set(DPDK_USER_PROVIDED OFF)
endif()
find_package(PkgConfig)
PKG_CHECK_MODULES(PC_DPDK QUIET libdpdk>=18.11)
find_path (DPDK_VERSION_INCLUDE_DIR rte_version.h
HINTS ${PC_DPDK_INCLUDE_DIRS}
PATHS ENV RTE_INCLUDE
PATH_SUFFIXES dpdk
)
find_path (DPDK_CONFIG_INCLUDE_DIR rte_config.h
HINTS ${PC_DPDK_INCLUDE_DIRS}
PATHS ENV RTE_INCLUDE
PATH_SUFFIXES dpdk
)
# Check for linker script that pulls in the APIs
find_library(DPDK_LIBRARY
dpdk
HINTS ${PC_DPDK_LIBDIR}
PATHS $ENV{RTE_SDK_DIR}/$ENV{RTE_TARGET}/lib
)
if(NOT DPDK_USER_PROVIDED)
set(DPDK_INCLUDE_DIRS ${PC_DPDK_INCLUDE_DIRS})
list(APPEND DPDK_INCLUDE_DIRS ${DPDK_VERSION_INCLUDE_DIR})
list(APPEND DPDK_INCLUDE_DIRS ${DPDK_CONFIG_INCLUDE_DIR})
list(REMOVE_DUPLICATES DPDK_INCLUDE_DIRS)
endif()
if(DPDK_USER_PROVIDED)
DPDK_READ_VERSION(DPDK_VERSION ${DPDK_INCLUDE_DIRS})
else()
set(DPDK_LIBRARIES ${PC_DPDK_LIBRARIES})
if(DPDK_LIBRARY)
list(APPEND DPDK_LIBRARIES ${DPDK_LIBRARY})
list(REMOVE_DUPLICATES DPDK_LIBRARIES)
endif()
if(PC_DPDK_FOUND)
set(DPDK_VERSION ${PC_DPDK_VERSION})
else()
DPDK_READ_VERSION(DPDK_VERSION ${DPDK_INCLUDE_DIRS})
endif(PC_DPDK_FOUND)
endif()
find_package_handle_standard_args(DPDK
REQUIRED_VARS DPDK_INCLUDE_DIRS DPDK_LIBRARIES
VERSION_VAR DPDK_VERSION
)
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