[dpdk-dev] [PATCH 1/3] lib: set LDLIBS for each library

Olivier MATZ olivier.matz at 6wind.com
Mon May 4 09:55:17 CEST 2015
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Hi Sergio,

On 04/15/2015 11:30 AM, Sergio Gonzalez Monroy wrote:
> This patch introduces a new LDLIBS variable to be set per library.
> Its purpose is to especify the library's dependent libraries to
> be explicitly linked against.
> 
> Given the circular dependencies between eal, malloc, mempool and ring,
> we work around it by not linking eal against its dependent DPDK libraries.
> Therefore, eal will not have proper DT_NEEDED entries (ie. no DT_NEEDED
> entries for librte_malloc and librte_mempool).
> 
> This means that any application that links against eal, needs to be
> certain of linking against malloc, mempool and ring too, to prevent
> a case where the application does not directly use mempool (therefore
> no DT_NEEDED entry). In such case, the application will fail to start as
> eal does not have a DT_NEEDED entry for mempool either.
> 
> Signed-off-by: Sergio Gonzalez Monroy <sergio.gonzalez.monroy at intel.com>
> ---

> [...]

> --- a/lib/librte_ip_frag/Makefile
> +++ b/lib/librte_ip_frag/Makefile
> @@ -41,6 +41,8 @@ EXPORT_MAP := rte_ipfrag_version.map
>  
>  LIBABIVER := 1
>  
> +LDLIBS += -lrte_eal -lrte_malloc -lethdev
> +
>  #source files
>  SRCS-$(CONFIG_RTE_LIBRTE_IP_FRAG) += rte_ipv4_fragmentation.c
>  SRCS-$(CONFIG_RTE_LIBRTE_IP_FRAG) += rte_ipv6_fragmentation.c
> @@ -55,5 +57,6 @@ SYMLINK-$(CONFIG_RTE_LIBRTE_IP_FRAG)-include += rte_ip_frag.h
>  
>  # this library depends on rte_ether
>  DEPDIRS-$(CONFIG_RTE_LIBRTE_IP_FRAG) += lib/librte_mempool lib/librte_ether
> +DEPDIRS-$(CONFIG_RTE_LIBRTE_IP_FRAG) += lib/librte_malloc lib/librte_mbuf
>  
>  include $(RTE_SDK)/mk/rte.lib.mk

It seems that in the rest of the patch LDLIBS and and DEPDIRS-y are
often similar, but that's not the case here. Can you confirm it's
because librte_ip_frag only uses inlined functions from librte_mempool
and librte_mbuf?

Did you use a specific scripting method to find the good value for
LDLIBS or did you do it manually? Is there a way to check that the
values are correct?


Thanks,
Olivier



> diff --git a/lib/librte_ivshmem/Makefile b/lib/librte_ivshmem/Makefile
> index 16defdb..fab6f5f 100644
> --- a/lib/librte_ivshmem/Makefile
> +++ b/lib/librte_ivshmem/Makefile
> @@ -40,6 +40,8 @@ EXPORT_MAP := rte_ivshmem_version.map
>  
>  LIBABIVER := 1
>  
> +LDLIBS += -lrte_mempool
> +
>  # all source are stored in SRCS-y
>  SRCS-$(CONFIG_RTE_LIBRTE_IVSHMEM) := rte_ivshmem.c
>  
> diff --git a/lib/librte_jobstats/Makefile b/lib/librte_jobstats/Makefile
> index 136a448..04589d4 100644
> --- a/lib/librte_jobstats/Makefile
> +++ b/lib/librte_jobstats/Makefile
> @@ -41,6 +41,8 @@ EXPORT_MAP := rte_jobstats_version.map
>  
>  LIBABIVER := 1
>  
> +LDLIBS += -lrte_eal
> +
>  # all source are stored in SRCS-y
>  SRCS-$(CONFIG_RTE_LIBRTE_JOBSTATS) := rte_jobstats.c
>  
> diff --git a/lib/librte_kni/Makefile b/lib/librte_kni/Makefile
> index 7107832..504ecf7 100644
> --- a/lib/librte_kni/Makefile
> +++ b/lib/librte_kni/Makefile
> @@ -40,6 +40,8 @@ EXPORT_MAP := rte_kni_version.map
>  
>  LIBABIVER := 1
>  
> +LDLIBS += -lrte_eal -lrte_malloc -lethdev
> +
>  # all source are stored in SRCS-y
>  SRCS-$(CONFIG_RTE_LIBRTE_KNI) := rte_kni.c
>  
> diff --git a/lib/librte_kvargs/Makefile b/lib/librte_kvargs/Makefile
> index 87b09f2..173e1ac 100644
> --- a/lib/librte_kvargs/Makefile
> +++ b/lib/librte_kvargs/Makefile
> @@ -42,6 +42,8 @@ EXPORT_MAP := rte_kvargs_version.map
>  
>  LIBABIVER := 1
>  
> +LDLIBS += -lrte_eal
> +
>  # all source are stored in SRCS-y
>  SRCS-$(CONFIG_RTE_LIBRTE_KVARGS) := rte_kvargs.c
>  
> diff --git a/lib/librte_lpm/Makefile b/lib/librte_lpm/Makefile
> index 35e6389..125d52e 100644
> --- a/lib/librte_lpm/Makefile
> +++ b/lib/librte_lpm/Makefile
> @@ -41,6 +41,8 @@ EXPORT_MAP := rte_lpm_version.map
>  
>  LIBABIVER := 1
>  
> +LDLIBS += -lrte_eal -lrte_malloc
> +
>  # all source are stored in SRCS-y
>  SRCS-$(CONFIG_RTE_LIBRTE_LPM) := rte_lpm.c rte_lpm6.c
>  
> diff --git a/lib/librte_malloc/Makefile b/lib/librte_malloc/Makefile
> index 947e41c..3e7348f 100644
> --- a/lib/librte_malloc/Makefile
> +++ b/lib/librte_malloc/Makefile
> @@ -40,6 +40,8 @@ CFLAGS += $(WERROR_FLAGS) -I$(SRCDIR) -O3
>  
>  EXPORT_MAP := rte_malloc_version.map
>  
> +LDLIBS += -lrte_eal
> +
>  # all source are stored in SRCS-y
>  SRCS-$(CONFIG_RTE_LIBRTE_MALLOC) := rte_malloc.c malloc_elem.c malloc_heap.c
>  
> diff --git a/lib/librte_mbuf/Makefile b/lib/librte_mbuf/Makefile
> index 080f3cf..d819891 100644
> --- a/lib/librte_mbuf/Makefile
> +++ b/lib/librte_mbuf/Makefile
> @@ -40,6 +40,8 @@ EXPORT_MAP := rte_mbuf_version.map
>  
>  LIBABIVER := 1
>  
> +LDLIBS += -lrte_eal
> +
>  # all source are stored in SRCS-y
>  SRCS-$(CONFIG_RTE_LIBRTE_MBUF) := rte_mbuf.c
>  
> diff --git a/lib/librte_mempool/Makefile b/lib/librte_mempool/Makefile
> index 940d1f7..8ebebb6 100644
> --- a/lib/librte_mempool/Makefile
> +++ b/lib/librte_mempool/Makefile
> @@ -40,6 +40,8 @@ EXPORT_MAP := rte_mempool_version.map
>  
>  LIBABIVER := 1
>  
> +LDLIBS += -lrte_eal -lrte_malloc -lrte_ring
> +
>  # all source are stored in SRCS-y
>  SRCS-$(CONFIG_RTE_LIBRTE_MEMPOOL) +=  rte_mempool.c
>  ifeq ($(CONFIG_RTE_LIBRTE_XEN_DOM0),y)
> diff --git a/lib/librte_meter/Makefile b/lib/librte_meter/Makefile
> index 8765881..d5eafb0 100644
> --- a/lib/librte_meter/Makefile
> +++ b/lib/librte_meter/Makefile
> @@ -43,6 +43,8 @@ EXPORT_MAP := rte_meter_version.map
>  
>  LIBABIVER := 1
>  
> +LDLIBS += -lrte_eal
> +
>  #
>  # all source are stored in SRCS-y
>  #
> diff --git a/lib/librte_pipeline/Makefile b/lib/librte_pipeline/Makefile
> index 15e406b..16de0a3 100644
> --- a/lib/librte_pipeline/Makefile
> +++ b/lib/librte_pipeline/Makefile
> @@ -43,6 +43,8 @@ EXPORT_MAP := rte_pipeline_version.map
>  
>  LIBABIVER := 1
>  
> +LDLIBS += -lrte_eal -lrte_malloc
> +
>  #
>  # all source are stored in SRCS-y
>  #
> diff --git a/lib/librte_pmd_af_packet/Makefile b/lib/librte_pmd_af_packet/Makefile
> index f0bf537..14a9957 100644
> --- a/lib/librte_pmd_af_packet/Makefile
> +++ b/lib/librte_pmd_af_packet/Makefile
> @@ -45,6 +45,8 @@ LIBABIVER := 1
>  CFLAGS += -O3
>  CFLAGS += $(WERROR_FLAGS)
>  
> +LDLIBS += -lrte_eal -lrte_malloc -lethdev -lrte_kvargs
> +
>  #
>  # all source are stored in SRCS-y
>  #
> diff --git a/lib/librte_pmd_bond/Makefile b/lib/librte_pmd_bond/Makefile
> index 83ccce3..d046489 100644
> --- a/lib/librte_pmd_bond/Makefile
> +++ b/lib/librte_pmd_bond/Makefile
> @@ -43,6 +43,9 @@ EXPORT_MAP := rte_eth_bond_version.map
>  
>  LIBABIVER := 1
>  
> +LDLIBS += -lrte_eal -lrte_mbuf -lrte_ring -lrte_mempool -lrte_malloc
> +LDLIBS += -lethdev -lrte_kvargs -lrte_cmdline
> +
>  #
>  # all source are stored in SRCS-y
>  #
> @@ -59,10 +62,13 @@ SYMLINK-y-include += rte_eth_bond.h
>  SYMLINK-y-include += rte_eth_bond_8023ad.h
>  
>  # this lib depends upon:
> +DEPDIRS-$(CONFIG_RTE_LIBRTE_PMD_BOND) += lib/librte_ring
> +DEPDIRS-$(CONFIG_RTE_LIBRTE_PMD_BOND) += lib/librte_mempool
>  DEPDIRS-$(CONFIG_RTE_LIBRTE_PMD_BOND) += lib/librte_mbuf
>  DEPDIRS-$(CONFIG_RTE_LIBRTE_PMD_BOND) += lib/librte_ether
>  DEPDIRS-$(CONFIG_RTE_LIBRTE_PMD_BOND) += lib/librte_malloc
>  DEPDIRS-$(CONFIG_RTE_LIBRTE_PMD_BOND) += lib/librte_eal
>  DEPDIRS-$(CONFIG_RTE_LIBRTE_PMD_BOND) += lib/librte_kvargs
> +DEPDIRS-$(CONFIG_RTE_LIBRTE_PMD_BOND) += lib/librte_cmdline
>  
>  include $(RTE_SDK)/mk/rte.lib.mk
> diff --git a/lib/librte_pmd_e1000/Makefile b/lib/librte_pmd_e1000/Makefile
> index 8c8fed8..5af6b6a 100644
> --- a/lib/librte_pmd_e1000/Makefile
> +++ b/lib/librte_pmd_e1000/Makefile
> @@ -65,6 +65,8 @@ $(foreach obj, $(BASE_DRIVER_OBJS), $(eval CFLAGS_$(obj)+=$(CFLAGS_BASE_DRIVER))
>  
>  VPATH += $(RTE_SDK)/lib/librte_pmd_e1000/e1000
>  
> +LDLIBS += -lrte_eal -lrte_mempool -lrte_mbuf -lrte_malloc -lethdev
> +
>  #
>  # all source are stored in SRCS-y
>  #
> diff --git a/lib/librte_pmd_enic/Makefile b/lib/librte_pmd_enic/Makefile
> index 251a898..e0100b2 100644
> --- a/lib/librte_pmd_enic/Makefile
> +++ b/lib/librte_pmd_enic/Makefile
> @@ -48,6 +48,9 @@ CFLAGS += $(WERROR_FLAGS) -Wno-strict-aliasing
>  
>  VPATH += $(RTE_SDK)/lib/librte_pmd_enic/src
>  
> +LDLIBS += -lrte_eal -lrte_mempool -lrte_mbuf -lrte_malloc
> +LDLIBS += -lethdev -lrte_hash
> +
>  #
>  # all source are stored in SRCS-y
>  #
> diff --git a/lib/librte_pmd_fm10k/Makefile b/lib/librte_pmd_fm10k/Makefile
> index 7516d37..9ee0d48 100644
> --- a/lib/librte_pmd_fm10k/Makefile
> +++ b/lib/librte_pmd_fm10k/Makefile
> @@ -81,6 +81,8 @@ $(foreach obj, $(BASE_DRIVER_OBJS), $(eval CFLAGS_$(obj)+=$(CFLAGS_BASE_DRIVER))
>  
>  VPATH += $(RTE_SDK)/lib/librte_pmd_fm10k/base
>  
> +LDLIBS += -lrte_eal -lrte_malloc -lethdev
> +
>  #
>  # all source are stored in SRCS-y
>  #
> diff --git a/lib/librte_pmd_i40e/Makefile b/lib/librte_pmd_i40e/Makefile
> index 64bab16..fa0d858 100644
> --- a/lib/librte_pmd_i40e/Makefile
> +++ b/lib/librte_pmd_i40e/Makefile
> @@ -80,6 +80,8 @@ $(foreach obj, $(OBJS_BASE_DRIVER), $(eval CFLAGS_$(obj)+=$(CFLAGS_BASE_DRIVER))
>  
>  VPATH += $(RTE_SDK)/lib/librte_pmd_i40e/i40e
>  
> +LDLIBS += -lrte_eal -lrte_mempool -lrte_mbuf -lrte_malloc -lethdev
> +
>  #
>  # all source are stored in SRCS-y
>  #
> diff --git a/lib/librte_pmd_ixgbe/Makefile b/lib/librte_pmd_ixgbe/Makefile
> index ae36202..d96edf2 100644
> --- a/lib/librte_pmd_ixgbe/Makefile
> +++ b/lib/librte_pmd_ixgbe/Makefile
> @@ -91,6 +91,8 @@ $(foreach obj, $(BASE_DRIVER_OBJS), $(eval CFLAGS_$(obj)+=$(CFLAGS_BASE_DRIVER))
>  
>  VPATH += $(RTE_SDK)/lib/librte_pmd_ixgbe/ixgbe
>  
> +LDLIBS += -lrte_eal -lrte_mempool -lrte_mbuf -lrte_malloc -lethdev
> +
>  #
>  # all source are stored in SRCS-y
>  #
> diff --git a/lib/librte_pmd_mlx4/Makefile b/lib/librte_pmd_mlx4/Makefile
> index 97b364a..a367748 100644
> --- a/lib/librte_pmd_mlx4/Makefile
> +++ b/lib/librte_pmd_mlx4/Makefile
> @@ -58,6 +58,8 @@ CFLAGS += -Wno-error=cast-qual
>  EXPORT_MAP := rte_pmd_mlx4_version.map
>  LIBABIVER := 1
>  
> +LDLIBS += -lrte_eal -lrte_mbuf -lrte_mempool -lrte_malloc -lethdev -libverbs
> +
>  # DEBUG which is usually provided on the command-line may enable
>  # CONFIG_RTE_LIBRTE_MLX4_DEBUG.
>  ifeq ($(DEBUG),1)
> diff --git a/lib/librte_pmd_null/Makefile b/lib/librte_pmd_null/Makefile
> index 6472015..c9bf1fd 100644
> --- a/lib/librte_pmd_null/Makefile
> +++ b/lib/librte_pmd_null/Makefile
> @@ -43,6 +43,8 @@ EXPORT_MAP := rte_pmd_null_version.map
>  
>  LIBABIVER := 1
>  
> +LDLIBS += -lrte_eal -lrte_malloc -lethdev -lrte_kvargs
> +
>  #
>  # all source are stored in SRCS-y
>  #
> diff --git a/lib/librte_pmd_pcap/Makefile b/lib/librte_pmd_pcap/Makefile
> index 0775dbc..2717978 100644
> --- a/lib/librte_pmd_pcap/Makefile
> +++ b/lib/librte_pmd_pcap/Makefile
> @@ -44,6 +44,8 @@ EXPORT_MAP := rte_pmd_pcap_version.map
>  
>  LIBABIVER := 1
>  
> +LDLIBS += -lrte_mbuf -lrte_malloc -lethdev -lrte_kvargs -lpcap
> +
>  #
>  # all source are stored in SRCS-y
>  #
> diff --git a/lib/librte_pmd_ring/Makefile b/lib/librte_pmd_ring/Makefile
> index e442d0b..33a4fb3 100644
> --- a/lib/librte_pmd_ring/Makefile
> +++ b/lib/librte_pmd_ring/Makefile
> @@ -43,6 +43,8 @@ EXPORT_MAP := rte_eth_ring_version.map
>  
>  LIBABIVER := 1
>  
> +LDLIBS += -lrte_eal -lrte_ring -lrte_malloc -lethdev -lrte_kvargs
> +
>  #
>  # all source are stored in SRCS-y
>  #
> @@ -56,6 +58,6 @@ SYMLINK-y-include += rte_eth_ring.h
>  # this lib depends upon:
>  DEPDIRS-$(CONFIG_RTE_LIBRTE_PMD_RING) += lib/librte_eal lib/librte_ring
>  DEPDIRS-$(CONFIG_RTE_LIBRTE_PMD_RING) += lib/librte_mbuf lib/librte_ether
> -DEPDIRS-$(CONFIG_RTE_LIBRTE_PMD_RING) += lib/librte_kvargs
> +DEPDIRS-$(CONFIG_RTE_LIBRTE_PMD_RING) += lib/librte_kvargs lib/librte_malloc
>  
>  include $(RTE_SDK)/mk/rte.lib.mk
> diff --git a/lib/librte_pmd_virtio/Makefile b/lib/librte_pmd_virtio/Makefile
> index 21ff7e5..1ff784b 100644
> --- a/lib/librte_pmd_virtio/Makefile
> +++ b/lib/librte_pmd_virtio/Makefile
> @@ -43,6 +43,8 @@ EXPORT_MAP := rte_pmd_virtio_version.map
>  
>  LIBABIVER := 1
>  
> +LDLIBS += -lrte_eal -lrte_malloc -lethdev
> +
>  #
>  # all source are stored in SRCS-y
>  #
> diff --git a/lib/librte_pmd_vmxnet3/Makefile b/lib/librte_pmd_vmxnet3/Makefile
> index fc616c4..35c0c90 100644
> --- a/lib/librte_pmd_vmxnet3/Makefile
> +++ b/lib/librte_pmd_vmxnet3/Makefile
> @@ -70,6 +70,8 @@ EXPORT_MAP := rte_pmd_vmxnet3_version.map
>  
>  LIBABIVER := 1
>  
> +LDLIBS += -lrte_eal -lrte_mempool -lrte_mbuf -lrte_malloc -lethdev
> +
>  #
>  # all source are stored in SRCS-y
>  #
> diff --git a/lib/librte_pmd_xenvirt/Makefile b/lib/librte_pmd_xenvirt/Makefile
> index f0c796c..df39a6e 100644
> --- a/lib/librte_pmd_xenvirt/Makefile
> +++ b/lib/librte_pmd_xenvirt/Makefile
> @@ -43,6 +43,9 @@ EXPORT_MAP := rte_eth_xenvirt_version.map
>  
>  LIBABIVER := 1
>  
> +LDLIBS += -lrte_eal -lrte_mempool -lrte_mbuf -lrte_malloc
> +LDLIBS += -lethdev -rte_cmdline -xenstore
> +
>  #
>  # all source are stored in SRCS-y
>  #
> diff --git a/lib/librte_port/Makefile b/lib/librte_port/Makefile
> index de960fc..595a682 100644
> --- a/lib/librte_port/Makefile
> +++ b/lib/librte_port/Makefile
> @@ -43,6 +43,9 @@ EXPORT_MAP := rte_port_version.map
>  
>  LIBABIVER := 1
>  
> +LDLIBS += -lrte_eal -lrte_mempool -lrte_malloc
> +LDLIBS += -lethdev -lrte_ip_frag -lrte_sched
> +
>  #
>  # all source are stored in SRCS-y
>  #
> @@ -73,5 +76,6 @@ DEPDIRS-$(CONFIG_RTE_LIBRTE_PORT) += lib/librte_mempool
>  DEPDIRS-$(CONFIG_RTE_LIBRTE_PORT) += lib/librte_malloc
>  DEPDIRS-$(CONFIG_RTE_LIBRTE_PORT) += lib/librte_ether
>  DEPDIRS-$(CONFIG_RTE_LIBRTE_PORT) += lib/librte_ip_frag
> +DEPDIRS-$(CONFIG_RTE_LIBRTE_PORT) += lib/librte_sched
>  
>  include $(RTE_SDK)/mk/rte.lib.mk
> diff --git a/lib/librte_power/Makefile b/lib/librte_power/Makefile
> index cee95cd..ec9107e 100644
> --- a/lib/librte_power/Makefile
> +++ b/lib/librte_power/Makefile
> @@ -40,6 +40,8 @@ EXPORT_MAP := rte_power_version.map
>  
>  LIBABIVER := 1
>  
> +LDLIBS += -lrte_eal
> +
>  # all source are stored in SRCS-y
>  SRCS-$(CONFIG_RTE_LIBRTE_POWER) := rte_power.c rte_power_acpi_cpufreq.c
>  SRCS-$(CONFIG_RTE_LIBRTE_POWER) += rte_power_kvm_vm.c guest_channel.c
> diff --git a/lib/librte_reorder/Makefile b/lib/librte_reorder/Makefile
> index 0c01de1..2c8f774 100644
> --- a/lib/librte_reorder/Makefile
> +++ b/lib/librte_reorder/Makefile
> @@ -41,6 +41,8 @@ EXPORT_MAP := rte_reorder_version.map
>  
>  LIBABIVER := 1
>  
> +LDLIBS += -lrte_eal -lrte_malloc
> +
>  # all source are stored in SRCS-y
>  SRCS-$(CONFIG_RTE_LIBRTE_REORDER) := rte_reorder.c
>  
> diff --git a/lib/librte_ring/Makefile b/lib/librte_ring/Makefile
> index 84ad3d3..1ff6cb6 100644
> --- a/lib/librte_ring/Makefile
> +++ b/lib/librte_ring/Makefile
> @@ -40,6 +40,8 @@ EXPORT_MAP := rte_ring_version.map
>  
>  LIBABIVER := 1
>  
> +LDLIBS += -lrte_eal -lrte_malloc
> +
>  # all source are stored in SRCS-y
>  SRCS-$(CONFIG_RTE_LIBRTE_RING) := rte_ring.c
>  
> diff --git a/lib/librte_sched/Makefile b/lib/librte_sched/Makefile
> index b1cb285..a3ac216 100644
> --- a/lib/librte_sched/Makefile
> +++ b/lib/librte_sched/Makefile
> @@ -45,6 +45,8 @@ EXPORT_MAP := rte_sched_version.map
>  
>  LIBABIVER := 1
>  
> +LDLIBS += -lrte_eal -lrte_malloc
> +
>  #
>  # all source are stored in SRCS-y
>  #
> diff --git a/lib/librte_table/Makefile b/lib/librte_table/Makefile
> index 0d8394c..2254d52 100644
> --- a/lib/librte_table/Makefile
> +++ b/lib/librte_table/Makefile
> @@ -43,6 +43,9 @@ EXPORT_MAP := rte_table_version.map
>  
>  LIBABIVER := 1
>  
> +LDLIBS += -lrte_eal -lrte_mempool -lrte_mbuf -lrte_malloc
> +LDLIBS += -lrte_port -lrte_lpm -lrte_hash
> +
>  #
>  # all source are stored in SRCS-y
>  #
> @@ -80,6 +83,7 @@ DEPDIRS-$(CONFIG_RTE_LIBRTE_TABLE) += lib/librte_port
>  DEPDIRS-$(CONFIG_RTE_LIBRTE_TABLE) += lib/librte_lpm
>  ifeq ($(CONFIG_RTE_LIBRTE_ACL),y)
>  DEPDIRS-$(CONFIG_RTE_LIBRTE_TABLE) += lib/librte_acl
> +LDLIBS += -lrte_acl
>  endif
>  DEPDIRS-$(CONFIG_RTE_LIBRTE_TABLE) += lib/librte_hash
>  
> diff --git a/lib/librte_timer/Makefile b/lib/librte_timer/Makefile
> index 2aabef8..859fa1a 100644
> --- a/lib/librte_timer/Makefile
> +++ b/lib/librte_timer/Makefile
> @@ -40,6 +40,8 @@ EXPORT_MAP := rte_timer_version.map
>  
>  LIBABIVER := 1
>  
> +LDLIBS += -lrte_eal
> +
>  # all source are stored in SRCS-y
>  SRCS-$(CONFIG_RTE_LIBRTE_TIMER) := rte_timer.c
>  
> diff --git a/lib/librte_vhost/Makefile b/lib/librte_vhost/Makefile
> index a8645a6..ac486ce 100644
> --- a/lib/librte_vhost/Makefile
> +++ b/lib/librte_vhost/Makefile
> @@ -39,11 +39,14 @@ EXPORT_MAP := rte_vhost_version.map
>  LIBABIVER := 1
>  
>  CFLAGS += $(WERROR_FLAGS) -I$(SRCDIR) -O3 -D_FILE_OFFSET_BITS=64
> +
> +LDLIBS += -lrte_eal -lrte_mbuf -lethdev
> +
>  ifeq ($(CONFIG_RTE_LIBRTE_VHOST_USER),y)
>  CFLAGS += -I vhost_user
>  else
> -CFLAGS += -I vhost_cuse -lfuse
> -LDFLAGS += -lfuse
> +CFLAGS += -I vhost_cuse
> +LDLIBS += -lfuse
>  endif
>  
>  # all source are stored in SRCS-y
>
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