From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.droids-corp.org (zoll.droids-corp.org [94.23.50.67]) by dpdk.org (Postfix) with ESMTP id 03D77C604 for ; Mon, 4 May 2015 17:27:02 +0200 (CEST) Received: from was59-1-82-226-113-214.fbx.proxad.net ([82.226.113.214] helo=[192.168.0.10]) by mail.droids-corp.org with esmtpsa (TLS1.2:DHE_RSA_AES_128_CBC_SHA1:128) (Exim 4.80) (envelope-from ) id 1YpIL4-0005HU-CD; Mon, 04 May 2015 17:31:27 +0200 Message-ID: <55478FB9.8000301@6wind.com> Date: Mon, 04 May 2015 17:26:49 +0200 From: Olivier MATZ User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Icedove/31.5.0 MIME-Version: 1.0 To: "Wiles, Keith" , "dev@dpdk.org" References: <1430490152-973-1-git-send-email-keith.wiles@intel.com> <5547394E.4020609@6wind.com> In-Reply-To: Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Subject: Re: [dpdk-dev] [PATCH v6 1/2] Simplify the ifdefs in rte.app.mk. X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 04 May 2015 15:27:02 -0000 On 05/04/2015 04:36 PM, Wiles, Keith wrote: > > > On 5/4/15, 2:18 AM, "Olivier MATZ" wrote: > >> Hi Keith, >> >> On 05/01/2015 04:22 PM, Keith Wiles wrote: >>> Trying to simplify the ifdefs in rte.app.mk to make the code >>> more readable and maintainable by moving LDLIBS variable to use >>> the same style as LDLIBS-y being used in the rest of the code. >>> >>> Added a new variable called EXTRA_LDLIBS to be used by example apps >>> instead of using LDLIBS directly. The new internal variable _LDLIBS >>> should not be used outside of the rte.app.mk file. The makefiles >>> can still use LDLIBS, but I would suggest using EXTRA_LDLIBS instead. >> >> Why are you suggesting to change LIBS to EXTRA_LIBS? > > Hi Olivier, > > I do not change LIBS to EXTRA_LIBS as I did not touch those variables. > > I did add EXTRA_LDLIBS and let LDLIBS as it was in the patch. I also > created LDLIBS-y as an internal variable. Did I miss your point here? In your previous mail, you say "The makefiles can still use LDLIBS, but I would suggest using EXTRA_LDLIBS instead." The question is: why are you suggesting that? And in the patch you are submitting, you are replacing LDLIBS by EXTRA_LDLIBS in examples/dpdk_qat/Makefile and examples/vm_power_manager/Makefile. Regards, Olivier > > ++Keith > >> We discussed in a previous thread that EXTRA_* variables should >> (as much as possible) be kept empty in Makefiles as it allows a >> user to append things in them. >> >> By the way, it would be easier to follow the different versions >> of your patches if you add "--in-reply-to " in your >> git-send-email command, as described in http://dpdk.org/dev >> >> Regards, >> Olivier >> >> >>> >>> Signed-off-by: Keith Wiles >>> --- >>> examples/dpdk_qat/Makefile | 4 +- >>> examples/vm_power_manager/Makefile | 2 +- >>> mk/rte.app.mk | 242 >>> +++++++++---------------------------- >>> 3 files changed, 63 insertions(+), 185 deletions(-) >>> >>> diff --git a/examples/dpdk_qat/Makefile b/examples/dpdk_qat/Makefile >>> index f1e06a1..90ca1d3 100644 >>> --- a/examples/dpdk_qat/Makefile >>> +++ b/examples/dpdk_qat/Makefile >>> @@ -77,8 +77,8 @@ else >>> ICP_LIBRARY_PATH = $(ICP_ROOT)/build/libicp_qa_al.a >>> endif >>> >>> -LDLIBS += -L$(ICP_ROOT)/build >>> -LDLIBS += $(ICP_LIBRARY_PATH) \ >>> +EXTRA_LDLIBS += -L$(ICP_ROOT)/build >>> +EXTRA_LDLIBS += $(ICP_LIBRARY_PATH) \ >>> -lz \ >>> -losal \ >>> -ladf_proxy \ >>> diff --git a/examples/vm_power_manager/Makefile >>> b/examples/vm_power_manager/Makefile >>> index 113dbc4..8fb78d4 100644 >>> --- a/examples/vm_power_manager/Makefile >>> +++ b/examples/vm_power_manager/Makefile >>> @@ -48,7 +48,7 @@ SRCS-y += channel_monitor.c >>> CFLAGS += -O3 -I$(RTE_SDK)/lib/librte_power/ >>> CFLAGS += $(WERROR_FLAGS) >>> >>> -LDLIBS += -lvirt >>> +EXTRA_LDLIBS += -lvirt >>> >>> # workaround for a gcc bug with noreturn attribute >>> # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12603 >>> diff --git a/mk/rte.app.mk b/mk/rte.app.mk >>> index 62a76ae..b8030d2 100644 >>> --- a/mk/rte.app.mk >>> +++ b/mk/rte.app.mk >>> @@ -1,7 +1,7 @@ >>> # BSD LICENSE >>> # >>> -# Copyright(c) 2010-2014 Intel Corporation. All rights reserved. >>> -# Copyright(c) 2014 6WIND S.A. >>> +# Copyright(c) 2010-2015 Intel Corporation. All rights reserved. >>> +# Copyright(c) 2014-2015 6WIND S.A. >>> # All rights reserved. >>> # >>> # Redistribution and use in source and binary forms, with or without >>> @@ -51,7 +51,7 @@ LDSCRIPT = $(RTE_LDSCRIPT) >>> endif >>> >>> # default path for libs >>> -LDLIBS += -L$(RTE_SDK_BIN)/lib >>> +_LDLIBS-y += -L$(RTE_SDK_BIN)/lib >>> >>> # >>> # Include libraries depending on config if NO_AUTOLIBS is not set >>> @@ -59,215 +59,93 @@ LDLIBS += -L$(RTE_SDK_BIN)/lib >>> # >>> ifeq ($(NO_AUTOLIBS),) >>> >>> -LDLIBS += --whole-archive >>> +_LDLIBS-y += --whole-archive >>> >>> -ifeq ($(CONFIG_RTE_BUILD_COMBINE_LIBS),y) >>> -LDLIBS += -l$(RTE_LIBNAME) >>> -endif >>> +_LDLIBS-$(CONFIG_RTE_BUILD_COMBINE_LIBS) += -l$(RTE_LIBNAME) >>> >>> ifeq ($(CONFIG_RTE_BUILD_COMBINE_LIBS),n) >>> >>> -ifeq ($(CONFIG_RTE_LIBRTE_DISTRIBUTOR),y) >>> -LDLIBS += -lrte_distributor >>> -endif >>> - >>> -ifeq ($(CONFIG_RTE_LIBRTE_REORDER),y) >>> -LDLIBS += -lrte_reorder >>> -endif >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_DISTRIBUTOR) += -lrte_distributor >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_REORDER) += -lrte_reorder >>> >>> -ifeq ($(CONFIG_RTE_LIBRTE_KNI),y) >>> ifeq ($(CONFIG_RTE_EXEC_ENV_LINUXAPP),y) >>> -LDLIBS += -lrte_kni >>> -endif >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_KNI) += -lrte_kni >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_IVSHMEM) += -lrte_ivshmem >>> endif >>> >>> -ifeq ($(CONFIG_RTE_LIBRTE_IVSHMEM),y) >>> -ifeq ($(CONFIG_RTE_EXEC_ENV_LINUXAPP),y) >>> -LDLIBS += -lrte_ivshmem >>> -endif >>> -endif >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_PIPELINE) += -lrte_pipeline >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_TABLE) += -lrte_table >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_PORT) += -lrte_port >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_TIMER) += -lrte_timer >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_HASH) += -lrte_hash >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_JOBSTATS) += -lrte_jobstats >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_LPM) += -lrte_lpm >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_POWER) += -lrte_power >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_ACL) += -lrte_acl >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_METER) += -lrte_meter >>> >>> -ifeq ($(CONFIG_RTE_LIBRTE_PIPELINE),y) >>> -LDLIBS += -lrte_pipeline >>> -endif >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_SCHED) += -lrte_sched >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_SCHED) += -lm >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_SCHED) += -lrt >>> >>> -ifeq ($(CONFIG_RTE_LIBRTE_TABLE),y) >>> -LDLIBS += -lrte_table >>> -endif >>> - >>> -ifeq ($(CONFIG_RTE_LIBRTE_PORT),y) >>> -LDLIBS += -lrte_port >>> -endif >>> - >>> -ifeq ($(CONFIG_RTE_LIBRTE_TIMER),y) >>> -LDLIBS += -lrte_timer >>> -endif >>> - >>> -ifeq ($(CONFIG_RTE_LIBRTE_HASH),y) >>> -LDLIBS += -lrte_hash >>> -endif >>> - >>> -ifeq ($(CONFIG_RTE_LIBRTE_JOBSTATS),y) >>> -LDLIBS += -lrte_jobstats >>> -endif >>> - >>> -ifeq ($(CONFIG_RTE_LIBRTE_LPM),y) >>> -LDLIBS += -lrte_lpm >>> -endif >>> - >>> -ifeq ($(CONFIG_RTE_LIBRTE_POWER),y) >>> -LDLIBS += -lrte_power >>> -endif >>> - >>> -ifeq ($(CONFIG_RTE_LIBRTE_ACL),y) >>> -LDLIBS += -lrte_acl >>> -endif >>> - >>> -ifeq ($(CONFIG_RTE_LIBRTE_METER),y) >>> -LDLIBS += -lrte_meter >>> -endif >>> - >>> -ifeq ($(CONFIG_RTE_LIBRTE_SCHED),y) >>> -LDLIBS += -lrte_sched >>> -LDLIBS += -lm >>> -LDLIBS += -lrt >>> -endif >>> - >>> -ifeq ($(CONFIG_RTE_LIBRTE_VHOST), y) >>> -LDLIBS += -lrte_vhost >>> -endif >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_VHOST) += -lrte_vhost >>> >>> endif # ! CONFIG_RTE_BUILD_COMBINE_LIBS >>> >>> -ifeq ($(CONFIG_RTE_LIBRTE_PMD_PCAP),y) >>> -LDLIBS += -lpcap >>> -endif >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_PCAP) += -lpcap >>> >>> -ifeq ($(CONFIG_RTE_LIBRTE_VHOST)$(CONFIG_RTE_LIBRTE_VHOST_USER),yn) >>> -LDLIBS += -lfuse >>> +ifeq ($(CONFIG_RTE_LIBRTE_VHOST_USER),n) >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_VHOST) += -lfuse >>> endif >>> >>> -ifeq ($(CONFIG_RTE_LIBRTE_MLX4_PMD),y) >>> -LDLIBS += -libverbs >>> -endif >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_MLX4_PMD) += -libverbs >>> >>> -LDLIBS += --start-group >>> +_LDLIBS-y += --start-group >>> >>> ifeq ($(CONFIG_RTE_BUILD_COMBINE_LIBS),n) >>> >>> -ifeq ($(CONFIG_RTE_LIBRTE_KVARGS),y) >>> -LDLIBS += -lrte_kvargs >>> -endif >>> - >>> -ifeq ($(CONFIG_RTE_LIBRTE_MBUF),y) >>> -LDLIBS += -lrte_mbuf >>> -endif >>> - >>> -ifeq ($(CONFIG_RTE_LIBRTE_IP_FRAG),y) >>> -LDLIBS += -lrte_ip_frag >>> -endif >>> - >>> -ifeq ($(CONFIG_RTE_LIBRTE_ETHER),y) >>> -LDLIBS += -lethdev >>> -endif >>> - >>> -ifeq ($(CONFIG_RTE_LIBRTE_MALLOC),y) >>> -LDLIBS += -lrte_malloc >>> -endif >>> - >>> -ifeq ($(CONFIG_RTE_LIBRTE_MEMPOOL),y) >>> -LDLIBS += -lrte_mempool >>> -endif >>> - >>> -ifeq ($(CONFIG_RTE_LIBRTE_RING),y) >>> -LDLIBS += -lrte_ring >>> -endif >>> - >>> -ifeq ($(CONFIG_RTE_LIBRTE_EAL),y) >>> -LDLIBS += -lrte_eal >>> -endif >>> - >>> -ifeq ($(CONFIG_RTE_LIBRTE_CMDLINE),y) >>> -LDLIBS += -lrte_cmdline >>> -endif >>> - >>> -ifeq ($(CONFIG_RTE_LIBRTE_CFGFILE),y) >>> -LDLIBS += -lrte_cfgfile >>> -endif >>> - >>> -ifeq ($(CONFIG_RTE_LIBRTE_PMD_BOND),y) >>> -LDLIBS += -lrte_pmd_bond >>> -endif >>> - >>> -ifeq ($(CONFIG_RTE_LIBRTE_PMD_XENVIRT),y) >>> -LDLIBS += -lrte_pmd_xenvirt >>> -LDLIBS += -lxenstore >>> -endif >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_KVARGS) += -lrte_kvargs >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_MBUF) += -lrte_mbuf >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_IP_FRAG) += -lrte_ip_frag >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_ETHER) += -lethdev >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_MALLOC) += -lrte_malloc >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_MEMPOOL) += -lrte_mempool >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_RING) += -lrte_ring >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_EAL) += -lrte_eal >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_CMDLINE) += -lrte_cmdline >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_CFGFILE) += -lrte_cfgfile >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_BOND) += -lrte_pmd_bond >>> + >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_XENVIRT) += -lrte_pmd_xenvirt >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_XENVIRT) += -lxenstore >>> >>> ifeq ($(CONFIG_RTE_BUILD_SHARED_LIB),n) >>> # plugins (link only if static libraries) >>> >>> -ifeq ($(CONFIG_RTE_LIBRTE_VMXNET3_PMD),y) >>> -LDLIBS += -lrte_pmd_vmxnet3_uio >>> -endif >>> - >>> -ifeq ($(CONFIG_RTE_LIBRTE_VIRTIO_PMD),y) >>> -LDLIBS += -lrte_pmd_virtio >>> -endif >>> - >>> -ifeq ($(CONFIG_RTE_LIBRTE_ENIC_PMD),y) >>> -LDLIBS += -lrte_pmd_enic >>> -endif >>> - >>> -ifeq ($(CONFIG_RTE_LIBRTE_I40E_PMD),y) >>> -LDLIBS += -lrte_pmd_i40e >>> -endif >>> - >>> -ifeq ($(CONFIG_RTE_LIBRTE_FM10K_PMD),y) >>> -LDLIBS += -lrte_pmd_fm10k >>> -endif >>> - >>> -ifeq ($(CONFIG_RTE_LIBRTE_IXGBE_PMD),y) >>> -LDLIBS += -lrte_pmd_ixgbe >>> -endif >>> - >>> -ifeq ($(CONFIG_RTE_LIBRTE_E1000_PMD),y) >>> -LDLIBS += -lrte_pmd_e1000 >>> -endif >>> - >>> -ifeq ($(CONFIG_RTE_LIBRTE_MLX4_PMD),y) >>> -LDLIBS += -lrte_pmd_mlx4 >>> -endif >>> - >>> -ifeq ($(CONFIG_RTE_LIBRTE_PMD_RING),y) >>> -LDLIBS += -lrte_pmd_ring >>> -endif >>> - >>> -ifeq ($(CONFIG_RTE_LIBRTE_PMD_PCAP),y) >>> -LDLIBS += -lrte_pmd_pcap >>> -endif >>> - >>> -ifeq ($(CONFIG_RTE_LIBRTE_PMD_AF_PACKET),y) >>> -LDLIBS += -lrte_pmd_af_packet >>> -endif >>> - >>> -ifeq ($(CONFIG_RTE_LIBRTE_PMD_NULL),y) >>> -LDLIBS += -lrte_pmd_null >>> -endif >>> - >>> -endif # plugins >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_VMXNET3_PMD) += -lrte_pmd_vmxnet3_uio >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_VIRTIO_PMD) += -lrte_pmd_virtio >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_ENIC_PMD) += -lrte_pmd_enic >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_I40E_PMD) += -lrte_pmd_i40e >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_FM10K_PMD) += -lrte_pmd_fm10k >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_IXGBE_PMD) += -lrte_pmd_ixgbe >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_E1000_PMD) += -lrte_pmd_e1000 >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_MLX4_PMD) += -lrte_pmd_mlx4 >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_RING) += -lrte_pmd_ring >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_PCAP) += -lrte_pmd_pcap >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_AF_PACKET) += -lrte_pmd_af_packet >>> +_LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_NULL) += -lrte_pmd_null >>> + >>> +endif # ! $(CONFIG_RTE_BUILD_SHARED_LIB) >>> >>> endif # ! CONFIG_RTE_BUILD_COMBINE_LIBS >>> >>> -LDLIBS += $(EXECENV_LDLIBS) >>> - >>> -LDLIBS += --end-group >>> - >>> -LDLIBS += --no-whole-archive >>> +_LDLIBS-y += $(EXECENV_LDLIBS) >>> +_LDLIBS-y += --end-group >>> +_LDLIBS-y += --no-whole-archive >>> >>> endif # ifeq ($(NO_AUTOLIBS),) >>> >>> -LDLIBS += $(CPU_LDLIBS) >>> +LDLIBS += $(_LDLIBS-y) $(EXTRA_LDLIBS) >>> >>> .PHONY: all >>> all: install >>> >