numam-spdk/lib/env_dpdk/env.mk

#
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# This makefile snippet must define the following flags:
# ENV_CFLAGS
# ENV_CXXFLAGS
# ENV_LIBS
# ENV_LINKER_ARGS

DPDK_DIR ?= $(CONFIG_DPDK_DIR)

ifeq ($(DPDK_DIR), )
ifeq ($(OS),FreeBSD)
export DPDK_ABS_DIR = /usr/local/share/dpdk/x86_64-native-freebsdapp-clang
else
export DPDK_ABS_DIR = /usr/local/share/dpdk/x86_64-native-linuxapp-gcc
endif
else
export DPDK_ABS_DIR = $(abspath $(DPDK_DIR))
endif

ifneq (, $(wildcard $(DPDK_ABS_DIR)/include/rte_config.h))
DPDK_INC = -I$(DPDK_ABS_DIR)/include
else
DPDK_INC = -I$(DPDK_ABS_DIR)/include/dpdk
endif

ifneq (, $(wildcard $(DPDK_ABS_DIR)/lib/librte_eal.a))
DPDK_LIB_EXT = .a
else
DPDK_LIB_EXT = .so
endif

DPDK_LIB_LIST = rte_eal rte_mempool rte_ring

# librte_mempool_ring was new added from DPDK 17.05. Link this library used for
#   ring based mempool management API.
ifneq (, $(wildcard $(DPDK_ABS_DIR)/lib/librte_mempool_ring.*))
DPDK_LIB_LIST += rte_mempool_ring
endif

# librte_malloc was removed after DPDK 2.1.  Link this library conditionally based on its
#  existence to maintain backward compatibility.
ifneq ($(wildcard $(DPDK_ABS_DIR)/lib/librte_malloc.*),)
DPDK_LIB_LIST += rte_malloc
endif

DPDK_LIB = $(DPDK_LIB_LIST:%=$(DPDK_ABS_DIR)/lib/lib%$(DPDK_LIB_EXT))

ENV_CFLAGS = $(DPDK_INC)
ENV_CXXFLAGS = $(ENV_CFLAGS)
ENV_DPDK_FILE = $(call spdk_lib_list_to_files,env_dpdk)
ENV_LIBS = $(ENV_DPDK_FILE) $(DPDK_LIB)
ENV_LINKER_ARGS = $(ENV_DPDK_FILE) -Wl,--start-group -Wl,--whole-archive $(DPDK_LIB) -Wl,--end-group -Wl,--no-whole-archive

ifeq ($(OS),Linux)
ENV_LINKER_ARGS += -ldl
endif
ifeq ($(OS),FreeBSD)
ENV_LINKER_ARGS += -lexecinfo
endif