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undefined reference to `mlx5dv_create_flow_action_packet_reformat' in DPDK mlx5

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mlx5dv_create_flow_action_packet_reformat is a function in <infiniband/mlx5dv.h>.

error shows:undefined reference to `mlx5dv_create_flow_action_packet_reformat'.

Why can't I link the mlx5dv_create_flow_action_packet_reformat function.

Does Which mean that I need to download some dependency packages?

—————————————————————————————————————————— My Makefile:

ROOTDIR=$(shell git rev-parse --show-toplevel)
RTE_SDK=/home/cxx/dpdk-18.11
R2P2LIB_DIR=$(ROOTDIR)/r2p2
RAFT_DIR=$(shell git rev-parse --show-toplevel)/../raft

include $(ROOTDIR)/netstack/dp/dir.mk
include $(ROOTDIR)/netstack/net/dir.mk
include $(R2P2LIB_DIR)/dir.mk


CC=gcc
CFLAGS += -g -O3 -I$(ROOTDIR)/netstack/inc -I$(R2P2LIB_DIR)/inc -I$(RTE_SDK)/x86_64-native-linuxapp-gcc/include -I$(RAFT_DIR)/include -DNO_BATCH #-DACCELERATED #-DRAFT_STATS

ifeq ($(WITH_RAFT), 1)
    CFLAGS += -DWITH_RAFT
endif

ifeq ($(LB_REPLIES), 1)
    CFLAGS += -DLB_REPLIES
endif

ifeq ($(SKIP_NO_SE), 1)
    CFLAGS += -DSKIP_NO_SE
endif

ifeq ($(ACCELERATED), 1)
    CFLAGS += -DACCELERATED
endif

ifeq ($(SWITCH_AGG), 1)
    CFLAGS += -DSWITCH_AGG
endif

ifeq ($(SMART_LB), 1)
    CFLAGS += -DSMART_LB
endif

ifeq ($(VIEW_CHANGE_EXP), 1)
    CFLAGS += -DVIEW_CHANGE_EXP
endif

ifdef PACKET_LOSS
    CFLAGS += -DPACKET_LOSS=$(PACKET_LOSS)
endif

WERROR_FLAGS := -W -Wall -Wstrict-prototypes -Wmissing-prototypes
WERROR_FLAGS += -Wmissing-declarations -Wold-style-definition -Wpointer-arith
WERROR_FLAGS += -Wcast-align -Wnested-externs -Wcast-qual
WERROR_FLAGS += -Wformat-nonliteral -Wformat-security
WERROR_FLAGS += -Wundef -Wwrite-strings

CFLAGS += $(WERROR_FLAGS) -mavx2
LDFLAGS= -Wl,--whole-archive -Wl,-ldpdk -Wl,--no-whole-archive -lrt -lpthread -lm -ldl -L$(RTE_SDK)/x86_64-native-linuxapp-gcc/lib -lconfig -lnuma -lgcov --coverage -lpcap

SRCS_C := $(addprefix $(ROOTDIR)/netstack/dp/, $(DP_SRC)) $(addprefix $(ROOTDIR)/netstack/net/, $(NET_SRC)) $(addprefix $(R2P2LIB_DIR)/, $(R2P2_SRC_C))
OBJS_C := $(patsubst %.c, %.o, $(SRCS_C))

ifeq ($(WITH_RAFT), 1)
    OBJS_C += $(RAFT_DIR)/libraft.a
endif

all:
    make r2p2-echo
    make r2p2-echo-fdir
    make synthetic-time
    make synthetic-time-fdir
    make r2p2-router
    make udp-echo
    make udp-synthetic

debug: cleanstate debug.o $(OBJS_C)
    $(CC) -o $@ debug.o $(OBJS_C) $(LDFLAGS)

r2p2-echo: cleanstate r2p2-echo.o $(OBJS_C)
    $(CC) -o $@ r2p2-echo.o $(OBJS_C) $(LDFLAGS)

r2p2-echo-fdir: CFLAGS += -DFDIR
r2p2-echo-fdir: cleanstate r2p2-echo.o $(OBJS_C)
    $(CC) -o $@ r2p2-echo.o $(OBJS_C) $(LDFLAGS)

stss: cleanstate r2p2-stss.o $(OBJS_C)
    $(CC) -o $@ r2p2-stss.o $(OBJS_C) $(LDFLAGS)

synthetic-size: cleanstate r2p2-synthetic-size.o $(OBJS_C)
    $(CC) -o $@ r2p2-synthetic-size.o $(OBJS_C) $(LDFLAGS)

synthetic-time: cleanstate r2p2-synthetic-time.o $(OBJS_C)
    $(CC) -o $@ r2p2-synthetic-time.o $(OBJS_C) $(LDFLAGS)

synthetic-time-fdir: CFLAGS += -DFDIR
synthetic-time-fdir: cleanstate r2p2-synthetic-time.o $(OBJS_C)
    $(CC) -o $@ r2p2-synthetic-time.o $(OBJS_C) $(LDFLAGS)

r2p2-router: CFLAGS += -DROUTER
r2p2-router: cleanstate r2p2-router.o $(OBJS_C)
    $(CC) -o $@ r2p2-router.o $(OBJS_C) $(LDFLAGS)

udp-echo: cleanstate udp-echo.o $(OBJS_C)
    $(CC) -o $@ udp-echo.o $(OBJS_C) $(LDFLAGS)

udp-synthetic: cleanstate udp-synthetic.o $(OBJS_C)
    $(CC) -o $@ udp-synthetic.o $(OBJS_C) $(LDFLAGS)

cleanstate:
    make -C $(R2P2LIB_DIR) clean
    make clean
    rm -f $(ROOTDIR)/netstack/net/*.o
    rm -f $(ROOTDIR)/netstack/dp/*.o

clean:
    rm -f *.o

distclean:
    make clean
    rm -f synthetic-time-fdir synthetic-time r2p2-router udp-echo

make -n for l2fwd show:

[cxx@tcsys-node1 l2fwd]$ make -n
mkdir -p /home/cxx/dpdk-18.11/examples/l2fwd/build
make -C /home/cxx/dpdk-18.11/examples/l2fwd/build -f /home/cxx/dpdk-18.11/examples/l2fwd/Makefile \
        S=/home/cxx/dpdk-18.11/examples/l2fwd O=/home/cxx/dpdk-18.11/examples/l2fwd/build SRCDIR=/home/cxx/dpdk-18.11/examples/l2fwd
[ -d ./ ] || mkdir -p ./
[ -d ./ ] || mkdir -p ./
set -e; echo "  LD l2fwd"; gcc -o l2fwd -m64 -pthread  -march=native -DRTE_MACHINE_CPUFLAG_SSE -DRTE_MACHINE_CPUFLAG_SSE2 -DRTE_MACHINE_CPUFLAG_SSE3 -DRTE_MACHINE_CPUFLAG_SSSE3 -DRTE_MACHINE_CPUFLAG_SSE4_1 -DRTE_MACHINE_CPUFLAG_SSE4_2 -DRTE_MACHINE_CPUFLAG_AES -DRTE_MACHINE_CPUFLAG_PCLMULQDQ -DRTE_MACHINE_CPUFLAG_AVX -DRTE_MACHINE_CPUFLAG_RDRAND -DRTE_MACHINE_CPUFLAG_FSGSBASE -DRTE_MACHINE_CPUFLAG_F16C -DRTE_MACHINE_CPUFLAG_AVX2  -I/home/cxx/dpdk-18.11/examples/l2fwd/build/include -I/home/cxx/dpdk-18.11/x86_64-native-linuxapp-gcc/include -include /home/cxx/dpdk-18.11/x86_64-native-linuxapp-gcc/include/rte_config.h -D_GNU_SOURCE -O3 -W -Wall -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wold-style-definition -Wpointer-arith -Wcast-align -Wnested-externs -Wcast-qual -Wformat-nonliteral -Wformat-security -Wundef -Wwrite-strings -Wdeprecated -Wno-address-of-packed-member  main.o -L/home/cxx/dpdk-18.11/x86_64-native-linuxapp-gcc/lib -Wl,-lrte_flow_classify -Wl,--whole-archive -Wl,-lrte_pipeline -Wl,--no-whole-archive -Wl,--whole-archive -Wl,-lrte_table -Wl,--no-whole-archive -Wl,--whole-archive -Wl,-lrte_port -Wl,--no-whole-archive -Wl,-lrte_pdump -Wl,-lrte_distributor -Wl,-lrte_ip_frag -Wl,-lrte_meter -Wl,-lrte_lpm -Wl,--whole-archive -Wl,-lrte_acl -Wl,--no-whole-archive -Wl,-lrte_jobstats -Wl,-lrte_metrics -Wl,-lrte_bitratestats -Wl,-lrte_latencystats -Wl,-lrte_power -Wl,-lrte_efd -Wl,-lrte_bpf -Wl,--whole-archive -Wl,-lrte_cfgfile -Wl,-lrte_gro -Wl,-lrte_gso -Wl,-lrte_hash -Wl,-lrte_member -Wl,-lrte_vhost -Wl,-lrte_kvargs -Wl,-lrte_mbuf -Wl,-lrte_net -Wl,-lrte_ethdev -Wl,-lrte_bbdev -Wl,-lrte_cryptodev -Wl,-lrte_security -Wl,-lrte_compressdev -Wl,-lrte_eventdev -Wl,-lrte_rawdev -Wl,-lrte_timer -Wl,-lrte_mempool -Wl,-lrte_mempool_ring -Wl,-lrte_ring -Wl,-lrte_pci -Wl,-lrte_eal -Wl,-lrte_cmdline -Wl,-lrte_reorder -Wl,-lrte_sched -Wl,-lrte_kni -Wl,-lrte_common_cpt -Wl,-lrte_common_octeontx -Wl,-lrte_common_dpaax -Wl,-lrte_bus_pci -Wl,-lrte_bus_vdev -Wl,-lrte_bus_dpaa -Wl,-lrte_bus_fslmc -Wl,-lrte_mempool_bucket -Wl,-lrte_mempool_stack -Wl,-lrte_mempool_dpaa -Wl,-lrte_mempool_dpaa2 -Wl,-lrte_pmd_af_packet -Wl,-lrte_pmd_ark -Wl,-lrte_pmd_atlantic -Wl,-lrte_pmd_avf -Wl,-lrte_pmd_avp -Wl,-lrte_pmd_axgbe -Wl,-lrte_pmd_bnxt -Wl,-lrte_pmd_bond -Wl,-lrte_pmd_cxgbe -Wl,-lrte_pmd_dpaa -Wl,-lrte_pmd_dpaa2 -Wl,-lrte_pmd_e1000 -Wl,-lrte_pmd_ena -Wl,-lrte_pmd_enetc -Wl,-lrte_pmd_enic -Wl,-lrte_pmd_fm10k -Wl,-lrte_pmd_failsafe -Wl,-lrte_pmd_i40e -Wl,-lrte_pmd_ixgbe -Wl,-lrte_pmd_kni -Wl,-lrte_pmd_lio -Wl,-lrte_pmd_mlx5 -Wl,-libverbs -Wl,-lmlx5 -Wl,-lmnl -Wl,-lrte_pmd_nfp -Wl,-lrte_pmd_null -Wl,-lrte_pmd_qede -Wl,-lrte_pmd_ring -Wl,-lrte_pmd_softnic -Wl,-lrte_pmd_sfc_efx -Wl,-lrte_pmd_tap -Wl,-lrte_pmd_thunderx_nicvf -Wl,-lrte_pmd_vdev_netvsc -Wl,-lrte_pmd_virtio -Wl,-lrte_pmd_vhost -Wl,-lrte_pmd_ifc -Wl,-lrte_pmd_vmxnet3_uio -Wl,-lrte_bus_vmbus -Wl,-lrte_pmd_netvsc -Wl,-lrte_pmd_bbdev_null -Wl,-lrte_pmd_null_crypto -Wl,-lrte_pmd_octeontx_crypto -Wl,-lrte_pmd_crypto_scheduler -Wl,-lrte_pmd_dpaa2_sec -Wl,-lrte_pmd_dpaa_sec -Wl,-lrte_pmd_caam_jr -Wl,-lrte_pmd_virtio_crypto -Wl,-lrte_pmd_octeontx_zip -Wl,-lrte_pmd_qat -Wl,-lrte_pmd_skeleton_event -Wl,-lrte_pmd_sw_event -Wl,-lrte_pmd_dsw_event -Wl,-lrte_pmd_octeontx_ssovf -Wl,-lrte_pmd_dpaa_event -Wl,-lrte_pmd_dpaa2_event -Wl,-lrte_mempool_octeontx -Wl,-lrte_pmd_octeontx -Wl,-lrte_pmd_opdl_event -Wl,-lrte_pmd_skeleton_rawdev -Wl,-lrte_pmd_dpaa2_cmdif -Wl,-lrte_pmd_dpaa2_qdma -Wl,-lrte_bus_ifpga -Wl,-lrte_pmd_ifpga_rawdev -Wl,--no-whole-archive -Wl,-lrt -Wl,-lm -Wl,-lnuma -Wl,-ldl -Wl,-export-dynamic -Wl,-export-dynamic -L/home/cxx/dpdk-18.11/examples/l2fwd/build/lib -L/home/cxx/dpdk-18.11/x86_64-native-linuxapp-gcc/lib -Wl,--as-needed -Wl,-Map=l2fwd.map -Wl,--cref && echo "cmd_l2fwd = gcc -o l2fwd -m64 -pthread  -march=native -DRTE_MACHINE_CPUFLAG_SSE -DRTE_MACHINE_CPUFLAG_SSE2 -DRTE_MACHINE_CPUFLAG_SSE3 -DRTE_MACHINE_CPUFLAG_SSSE3 -DRTE_MACHINE_CPUFLAG_SSE4_1 -DRTE_MACHINE_CPUFLAG_SSE4_2 -DRTE_MACHINE_CPUFLAG_AES -DRTE_MACHINE_CPUFLAG_PCLMULQDQ -DRTE_MACHINE_CPUFLAG_AVX -DRTE_MACHINE_CPUFLAG_RDRAND -DRTE_MACHINE_CPUFLAG_FSGSBASE -DRTE_MACHINE_CPUFLAG_F16C -DRTE_MACHINE_CPUFLAG_AVX2  -I/home/cxx/dpdk-18.11/examples/l2fwd/build/include -I/home/cxx/dpdk-18.11/x86_64-native-linuxapp-gcc/include -include /home/cxx/dpdk-18.11/x86_64-native-linuxapp-gcc/include/rte_config.h -D_GNU_SOURCE -O3 -W -Wall -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wold-style-definition -Wpointer-arith -Wcast-align -Wnested-externs -Wcast-qual -Wformat-nonliteral -Wformat-security -Wundef -Wwrite-strings -Wdeprecated -Wno-address-of-packed-member  main.o -L/home/cxx/dpdk-18.11/x86_64-native-linuxapp-gcc/lib -Wl,-lrte_flow_classify -Wl,--whole-archive -Wl,-lrte_pipeline -Wl,--no-whole-archive -Wl,--whole-archive -Wl,-lrte_table -Wl,--no-whole-archive -Wl,--whole-archive -Wl,-lrte_port -Wl,--no-whole-archive -Wl,-lrte_pdump -Wl,-lrte_distributor -Wl,-lrte_ip_frag -Wl,-lrte_meter -Wl,-lrte_lpm -Wl,--whole-archive -Wl,-lrte_acl -Wl,--no-whole-archive -Wl,-lrte_jobstats -Wl,-lrte_metrics -Wl,-lrte_bitratestats -Wl,-lrte_latencystats -Wl,-lrte_power -Wl,-lrte_efd -Wl,-lrte_bpf -Wl,--whole-archive -Wl,-lrte_cfgfile -Wl,-lrte_gro -Wl,-lrte_gso -Wl,-lrte_hash -Wl,-lrte_member -Wl,-lrte_vhost -Wl,-lrte_kvargs -Wl,-lrte_mbuf -Wl,-lrte_net -Wl,-lrte_ethdev -Wl,-lrte_bbdev -Wl,-lrte_cryptodev -Wl,-lrte_security -Wl,-lrte_compressdev -Wl,-lrte_eventdev -Wl,-lrte_rawdev -Wl,-lrte_timer -Wl,-lrte_mempool -Wl,-lrte_mempool_ring -Wl,-lrte_ring -Wl,-lrte_pci -Wl,-lrte_eal -Wl,-lrte_cmdline -Wl,-lrte_reorder -Wl,-lrte_sched -Wl,-lrte_kni -Wl,-lrte_common_cpt -Wl,-lrte_common_octeontx -Wl,-lrte_common_dpaax -Wl,-lrte_bus_pci -Wl,-lrte_bus_vdev -Wl,-lrte_bus_dpaa -Wl,-lrte_bus_fslmc -Wl,-lrte_mempool_bucket -Wl,-lrte_mempool_stack -Wl,-lrte_mempool_dpaa -Wl,-lrte_mempool_dpaa2 -Wl,-lrte_pmd_af_packet -Wl,-lrte_pmd_ark -Wl,-lrte_pmd_atlantic -Wl,-lrte_pmd_avf -Wl,-lrte_pmd_avp -Wl,-lrte_pmd_axgbe -Wl,-lrte_pmd_bnxt -Wl,-lrte_pmd_bond -Wl,-lrte_pmd_cxgbe -Wl,-lrte_pmd_dpaa -Wl,-lrte_pmd_dpaa2 -Wl,-lrte_pmd_e1000 -Wl,-lrte_pmd_ena -Wl,-lrte_pmd_enetc -Wl,-lrte_pmd_enic -Wl,-lrte_pmd_fm10k -Wl,-lrte_pmd_failsafe -Wl,-lrte_pmd_i40e -Wl,-lrte_pmd_ixgbe -Wl,-lrte_pmd_kni -Wl,-lrte_pmd_lio -Wl,-lrte_pmd_mlx5 -Wl,-libverbs -Wl,-lmlx5 -Wl,-lmnl -Wl,-lrte_pmd_nfp -Wl,-lrte_pmd_null -Wl,-lrte_pmd_qede -Wl,-lrte_pmd_ring -Wl,-lrte_pmd_softnic -Wl,-lrte_pmd_sfc_efx -Wl,-lrte_pmd_tap -Wl,-lrte_pmd_thunderx_nicvf -Wl,-lrte_pmd_vdev_netvsc -Wl,-lrte_pmd_virtio -Wl,-lrte_pmd_vhost -Wl,-lrte_pmd_ifc -Wl,-lrte_pmd_vmxnet3_uio -Wl,-lrte_bus_vmbus -Wl,-lrte_pmd_netvsc -Wl,-lrte_pmd_bbdev_null -Wl,-lrte_pmd_null_crypto -Wl,-lrte_pmd_octeontx_crypto -Wl,-lrte_pmd_crypto_scheduler -Wl,-lrte_pmd_dpaa2_sec -Wl,-lrte_pmd_dpaa_sec -Wl,-lrte_pmd_caam_jr -Wl,-lrte_pmd_virtio_crypto -Wl,-lrte_pmd_octeontx_zip -Wl,-lrte_pmd_qat -Wl,-lrte_pmd_skeleton_event -Wl,-lrte_pmd_sw_event -Wl,-lrte_pmd_dsw_event -Wl,-lrte_pmd_octeontx_ssovf -Wl,-lrte_pmd_dpaa_event -Wl,-lrte_pmd_dpaa2_event -Wl,-lrte_mempool_octeontx -Wl,-lrte_pmd_octeontx -Wl,-lrte_pmd_opdl_event -Wl,-lrte_pmd_skeleton_rawdev -Wl,-lrte_pmd_dpaa2_cmdif -Wl,-lrte_pmd_dpaa2_qdma -Wl,-lrte_bus_ifpga -Wl,-lrte_pmd_ifpga_rawdev -Wl,--no-whole-archive -Wl,-lrt -Wl,-lm -Wl,-lnuma -Wl,-ldl -Wl,-export-dynamic -Wl,-export-dynamic -L/home/cxx/dpdk-18.11/examples/l2fwd/build/lib -L/home/cxx/dpdk-18.11/x86_64-native-linuxapp-gcc/lib -Wl,--as-needed -Wl,-Map=l2fwd.map -Wl,--cref " > ./.l2fwd.cmd
touch _postbuild
echo "  INSTALL-APP l2fwd"
[ -d /home/cxx/dpdk-18.11/examples/l2fwd/build/app ] || mkdir -p /home/cxx/dpdk-18.11/examples/l2fwd/build/app
cp -f l2fwd /home/cxx/dpdk-18.11/examples/l2fwd/build/app
echo "  INSTALL-MAP l2fwd.map"
[ -d /home/cxx/dpdk-18.11/examples/l2fwd/build/app ] || mkdir -p /home/cxx/dpdk-18.11/examples/l2fwd/build/app
cp -f l2fwd.map /home/cxx/dpdk-18.11/examples/l2fwd/build/app
touch _install
true
touch _postinstall
Solution

  • The issue with application r2p2-echo Makefile flags, as it only include DPDK headers via -I$(RTE_SDK)/x86_64-native-linuxapp-gcc/include. Based on the logs DPDK is been built Mellanox PMD drivers which have an inherent dependency on libverbs to provide the definition for mlx5_glue_*.

    Following are the ways to fix the issue

    1. if the application does not use Mellanox PMD, rebuild DPDK (< 19.11 LTS) with CONFIG_RTE_LIBRTE_MLX5_PMD=n in rte_config. Then rebuild the application.
    2. If the application does use Mellanox PMD, the CFLAGS and LDFLAGS needs modifications to accommodate the path and definition for libverbs.
    3. If the DPDK is 19.11 LTS or greater, using pkg-config one can fetch the appropriate CFLAGS and LDFLAGS.

    Solution with pkg-config:

    CFLAGS update:

    CFLAGS += -g -O3 -I$(ROOTDIR)/netstack/inc -I$(R2P2LIB_DIR)/inc $(pkg-config --cflags --static libdpdk) -I$(RAFT_DIR)/include -DNO_BATCH #-DACCELERATED #-DRAFT_STATS

    and

    for LDFLAGS

    r2p2-echo: cleanstate r2p2-echo.o $(OBJS_C)
    $(CC) -o $@ r2p2-echo.o $(OBJS_C) $(LDFLAGS) $(pkg-config --static --libs libdpdk)

    Solution for DPDK version less than 19.11 LTS:

    • execute make static -n or make -n for example/l2fwd.
    • This will generate a log for the compiler flags used for application build with DPDK libraries and dependencies.
    • Pull the necessary fields for cflags and ldflags and update the makefile.

    [EDIT-1] makefile modification

    diff --git a/dpdk-apps/Makefile b/dpdk-apps/Makefile
index 3da318d..40a1e2f 100644
--- a/dpdk-apps/Makefile
+++ b/dpdk-apps/Makefile
@@ -31,7 +31,14 @@ include $(R2P2LIB_DIR)/dir.mk


 CC=gcc
-CFLAGS += -g -O3 -I$(ROOTDIR)/netstack/inc -I$(R2P2LIB_DIR)/inc -I$(RTE_SDK)/x86_64-native-linuxapp-gcc/include -I$(RAFT_DIR)/include -DNO_BATCH #-DACCELERATED #-DRAFT_STATS
+CFLAGS += -g -O3 -I$(ROOTDIR)/netstack/inc -I$(R2P2LIB_DIR)/inc -I$(RAFT_DIR)/include -DNO_BATCH #-DACCELERATED #-DRAFT_STATS
+
+DPDK_VERSION:=$(shell  pkg-config --modversion libdpdk)
+ifneq ("$(DPDK_VERSION)", "")
+       CFLAGS += ${shell pkg-config --cflags --static libdpdk}
+else
+       CFLAGS += -I$(RTE_SDK)/x86_64-native-linuxapp-gcc/include
+endif

 ifeq ($(WITH_RAFT), 1)
        CFLAGS += -DWITH_RAFT
@@ -72,7 +79,13 @@ WERROR_FLAGS += -Wformat-nonliteral -Wformat-security
 WERROR_FLAGS += -Wundef -Wwrite-strings

 CFLAGS += $(WERROR_FLAGS) -mavx2
-LDFLAGS= -Wl,--whole-archive -Wl,-ldpdk -Wl,--no-whole-archive -lrt -lpthread -lm -ldl -L$(RTE_SDK)/x86_64-native-linuxapp-gcc/lib -lconfig -lnuma -lgcov --coverage -lpcap
+
+ifneq ("$(DPDK_VERSION)", "")
+       LDFLAGS += ${shell pkg-config --libs --static libdpdk}
+else
+       LDFLAGS= -Wl,--whole-archive -Wl,-ldpdk -Wl,--no-whole-archive -lrt -lpthread -lm -ldl -L$(RTE_SDK)/x86_64-native-linuxapp-gcc/lib -lconfig -lnuma -lgcov --coverage -lpcap
+endif
+LDFLAGS += -lconfig -lgcov --coverage -lpcap

 SRCS_C := $(addprefix $(ROOTDIR)/netstack/dp/, $(DP_SRC)) $(addprefix $(ROOTDIR)/netstack/net/, $(NET_SRC)) $(addprefix $(R2P2LIB_DIR)/, $(R2P2_SRC_C))
 OBJS_C := $(patsubst %.c, %.o, $(SRCS_C))

    Note: there are errors which are associated to DPDK and Linux header versions which needs updating too for the project .