From: "Dumitrescu, Cristian" <cristian.dumitrescu@intel.com>
To: Panu Matilainen <pmatilai@redhat.com>, "dev@dpdk.org" <dev@dpdk.org>
Cc: "christian.ehrhardt@canonical.com"
<christian.ehrhardt@canonical.com>,
"thomas.monjalon@6wind.com" <thomas.monjalon@6wind.com>
Subject: Re: [dpdk-dev] [PATCH 1/3] mk: fix librte_pipeline dependency list truncation
Date: Tue, 21 Jun 2016 10:01:21 +0000 [thread overview]
Message-ID: <3EB4FA525960D640B5BDFFD6A3D8912647A0A645@IRSMSX108.ger.corp.intel.com> (raw)
In-Reply-To: <cc770c89679f94622e340cb2bbe7b159d8bcf4d2.1466496709.git.pmatilai@redhat.com>
> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Panu Matilainen
> Sent: Tuesday, June 21, 2016 9:12 AM
> To: dev@dpdk.org
> Cc: christian.ehrhardt@canonical.com; thomas.monjalon@6wind.com
> Subject: [dpdk-dev] [PATCH 1/3] mk: fix librte_pipeline dependency list
> truncation
>
> In other libraries, dependency list is always appended to, but
> in commit 6cbf4f75e059 it with an assignment. This causes the
> librte_eal dependency added in commit 6cbf4f75e059 to get discarded,
> resulting in missing dependency on librte_eal.
>
> Fixes: b3688bee81a8 ("pipeline: new packet framework logic")
> Fixes: 6cbf4f75e059 ("mk: fix missing internal dependencies")
>
> Signed-off-by: Panu Matilainen <pmatilai@redhat.com>
> ---
> lib/librte_pipeline/Makefile | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/lib/librte_pipeline/Makefile b/lib/librte_pipeline/Makefile
> index 95387aa..a8f3128 100644
> --- a/lib/librte_pipeline/Makefile
> +++ b/lib/librte_pipeline/Makefile
> @@ -53,7 +53,7 @@ SYMLINK-$(CONFIG_RTE_LIBRTE_PIPELINE)-include +=
> rte_pipeline.h
>
> # this lib depends upon:
> DEPDIRS-$(CONFIG_RTE_LIBRTE_PIPELINE) += lib/librte_eal
> -DEPDIRS-$(CONFIG_RTE_LIBRTE_PIPELINE) := lib/librte_table
> +DEPDIRS-$(CONFIG_RTE_LIBRTE_PIPELINE) += lib/librte_table
> DEPDIRS-$(CONFIG_RTE_LIBRTE_PIPELINE) += lib/librte_port
>
> include $(RTE_SDK)/mk/rte.lib.mk
> --
> 2.5.5
In release 16.4, EAL was missing from the dependency list, now it is added. The librte_pipeline uses rte_malloc, therefore it depends on librte_eal being present.
In the Makefile of the other Packet Framework libraries (librte_port, librte_table), it looks like the first dependency in the list is EAL, which is listed with the assignment operator, followed by others that are listed with the append operator:
DEPDIRS-$(CONFIG_RTE_LIBRTE_XYZ) := lib/librte_eal
DEPDIRS-$(CONFIG_RTE_LIBRTE_XYZ) += lib/librte_some other lib
Therefore, at least for cosmetic reasons, we should probably do the same in librte_pipeline, which requires changing both the librte_eal and the librte_table lines as below:
DEPDIRS-$(CONFIG_RTE_LIBRTE_PIPELINE) := lib/librte_eal
DEPDIRS-$(CONFIG_RTE_LIBRTE_PIPELINE) += lib/librte_table
DEPDIRS-$(CONFIG_RTE_LIBRTE_PIPELINE) += lib/librte_port
However, some other libraries e.g. librte_lpm simply add the EAL dependency using the append operator:
DEPDIRS-$(CONFIG_RTE_LIBRTE_LPM) += lib/librte_eal
To be honest, I need to refresh my knowledge on make, I don't remember right now when we should use the assignment and when the append. Do we need to use the assign for first dependency (EAL) and append for others or should we use append everywhere?
Thanks,
Cristian
next prev parent reply other threads:[~2016-06-21 10:01 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-21 8:11 Panu Matilainen
2016-06-21 8:11 ` [dpdk-dev] [PATCH 2/3] pdump: fix missing dependency on libpthread Panu Matilainen
2016-06-21 8:11 ` [dpdk-dev] [PATCH 3/3] mk: fail build on incomplete shared library dependencies Panu Matilainen
2016-06-21 10:01 ` Dumitrescu, Cristian [this message]
2016-06-21 10:25 ` [dpdk-dev] [PATCH 1/3] mk: fix librte_pipeline dependency list truncation Panu Matilainen
2016-06-21 10:31 ` Bruce Richardson
2016-06-21 10:44 ` Panu Matilainen
2016-06-21 10:58 ` Dumitrescu, Cristian
2016-06-21 11:53 ` Panu Matilainen
2016-06-26 16:41 ` [dpdk-dev] [PATCH v2 0/7] fix dependencies Thomas Monjalon
2016-06-26 16:41 ` [dpdk-dev] [PATCH v2 1/7] mk: remove traces of combined library Thomas Monjalon
2016-06-26 16:42 ` [dpdk-dev] [PATCH v2 2/7] mk: fix external library link Thomas Monjalon
2016-06-26 16:42 ` [dpdk-dev] [PATCH v2 3/7] pipeline: fix truncated dependency list Thomas Monjalon
2016-06-27 9:20 ` Dumitrescu, Cristian
2016-06-27 9:27 ` Thomas Monjalon
2016-06-26 16:42 ` [dpdk-dev] [PATCH v2 4/7] mk: fix internal dependencies Thomas Monjalon
2016-06-26 16:42 ` [dpdk-dev] [PATCH v2 5/7] mk: fix external dependencies of crypto drivers Thomas Monjalon
2016-06-27 8:48 ` Panu Matilainen
2016-06-26 16:42 ` [dpdk-dev] [PATCH v2 6/7] pdump: fix missing dependency on libpthread Thomas Monjalon
2016-06-26 16:42 ` [dpdk-dev] [PATCH v2 7/7] mk: check shared library dependencies Thomas Monjalon
2016-06-27 15:15 ` [dpdk-dev] [PATCH v2 0/7] fix dependencies Thomas Monjalon
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