From: Ferruh Yigit <ferruh.yigit@intel.com>
To: Thomas Monjalon <thomas.monjalon@6wind.com>
Cc: dev@dpdk.org, Panu Matilainen <pmatilai@redhat.com>,
Christian Ehrhardt <christian.ehrhardt@canonical.com>,
olivier.matz@6wind.com
Subject: Re: [dpdk-dev] [PATCH 2/2] mk: reduce scope of whole-archive to pmd libraries
Date: Fri, 10 Jun 2016 12:06:35 +0100 [thread overview]
Message-ID: <575A9F3B.50802@intel.com> (raw)
In-Reply-To: <4031296.h8oICZ3R2f@xps13>
On 6/10/2016 11:18 AM, Thomas Monjalon wrote:
> 2016-06-10 10:57, Ferruh Yigit:
>> On 6/10/2016 10:03 AM, Thomas Monjalon wrote:
>>> 2016-05-27 17:48, Ferruh Yigit:
>>>> --whole-archive argument only required for pmd libraries, and currently
>>>> it covers more libraries. Reducing scope of the argument to pmd
>>>> libraries slightly reduce final application size.
>>>
>>> In my understanding, --whole-archive is required for static libraries used
>>> by plugins:
>>> http://dpdk.org/commit/20afd76a
>> Right, required for static libraries. But more than used by plugins,
>> required for plugin to work.
>>
>>> If we want to restrict it, I would say it must be around EAL, ring,
>>> mbuf, mempool, ethdev, cryptodev, etc.
>>>
>>
>> We should restrict to plugins. What happens is, since there is no direct
>> call to PMDs from application, PMD code is not included into final
>> application. To force PMDs to be included into final binary,
>> --whole-archive is required.
>>
>> But --whole-archive is not required for other libraries, and just cause
>> unnecessary increase in binary size.
>
> Yes it is necessary for other libraries, otherwise some symbols needed by
> plugins won't be available.
> Example:
> In function `rte_pmd_af_packet_devuninit':
> rte_eth_af_packet.c:(.text+0x8bf): undefined reference to `rte_eth_dev_allocated'
> rte_eth_af_packet.c:(.text+0x930): undefined reference to `rte_eth_dev_release_port'
>
If there is a direct call to that API, linker should include required
object file into final binary, --whole-archive shouldn't be required for
this.
What is special for PMD's is there are not directly called, but
initialized using constructors.
How are you getting above compilation error?
Thanks,
ferruh
next prev parent reply other threads:[~2016-06-10 11:06 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-19 15:38 [dpdk-dev] Underlinked libs and overlinked applications - an issue? Christian Ehrhardt
2016-05-19 18:17 ` Thomas Monjalon
2016-05-20 11:01 ` Panu Matilainen
2016-05-20 12:41 ` Christian Ehrhardt
2016-05-20 16:43 ` Christian Ehrhardt
2016-05-20 16:50 ` [dpdk-dev] [PATCH] mk: fix underlinking issues of most librte libraries Christian Ehrhardt
2016-05-20 17:08 ` Thomas Monjalon
2016-05-24 9:56 ` Panu Matilainen
2016-05-24 10:11 ` Christian Ehrhardt
2016-05-26 13:13 ` Ferruh Yigit
2016-05-27 5:59 ` Panu Matilainen
2016-05-27 16:15 ` Ferruh Yigit
2016-05-27 16:48 ` [dpdk-dev] [PATCH 1/2] mk: prevent overlinking in applications Ferruh Yigit
2016-05-27 16:48 ` [dpdk-dev] [PATCH 2/2] mk: reduce scope of whole-archive to pmd libraries Ferruh Yigit
2016-06-10 9:03 ` Thomas Monjalon
2016-06-10 9:57 ` Ferruh Yigit
2016-06-10 10:18 ` Thomas Monjalon
2016-06-10 11:06 ` Ferruh Yigit [this message]
2016-06-10 12:21 ` Thomas Monjalon
2016-06-10 13:35 ` Ferruh Yigit
2016-06-09 10:10 ` [dpdk-dev] [PATCH 1/2] mk: prevent overlinking in applications Thomas Monjalon
2016-06-09 13:05 ` Ferruh Yigit
2016-06-10 13:19 ` [dpdk-dev] [PATCH v2 0/6] reduce " Thomas Monjalon
2016-06-10 13:19 ` [dpdk-dev] [PATCH v2 1/6] mk: sort drivers in static application link list Thomas Monjalon
2016-06-10 13:19 ` [dpdk-dev] [PATCH v2 2/6] mk: fix driver dependencies order for static application Thomas Monjalon
2016-06-10 14:49 ` Ferruh Yigit
2016-06-10 14:54 ` Thomas Monjalon
2016-06-10 13:19 ` [dpdk-dev] [PATCH v2 3/6] mk: remove library grouping during application linking Thomas Monjalon
2016-06-10 14:54 ` Ferruh Yigit
2016-06-10 15:14 ` Thomas Monjalon
2016-06-10 13:19 ` [dpdk-dev] [PATCH v2 4/6] mk: prevent overlinking in applications Thomas Monjalon
2016-06-10 14:56 ` Ferruh Yigit
2016-06-10 15:15 ` Thomas Monjalon
2016-06-10 13:19 ` [dpdk-dev] [PATCH v2 5/6] mk: sort libraries in level order when linking Thomas Monjalon
2016-06-10 13:19 ` [dpdk-dev] [PATCH v2 6/6] mk: reduce scope of whole-archive static linking Thomas Monjalon
2016-06-10 15:03 ` Ferruh Yigit
2016-06-10 15:18 ` Thomas Monjalon
2016-06-10 18:32 ` [dpdk-dev] [PATCH v3 0/6] reduce overlinking in applications Ferruh Yigit
2016-06-10 18:32 ` [dpdk-dev] [PATCH v3 1/6] mk: sort drivers in static application link list Ferruh Yigit
2016-06-10 19:38 ` Wiles, Keith
2016-06-10 18:32 ` [dpdk-dev] [PATCH v3 2/6] mk: fix driver dependencies order for static application Ferruh Yigit
2016-06-10 18:32 ` [dpdk-dev] [PATCH v3 3/6] mk: sort libraries when linking, move pmd libs to higher level Ferruh Yigit
2016-06-13 9:29 ` Thomas Monjalon
2016-06-13 10:04 ` Ferruh Yigit
2016-06-13 10:21 ` Thomas Monjalon
2016-06-13 10:29 ` Ferruh Yigit
2016-06-10 18:32 ` [dpdk-dev] [PATCH v3 4/6] mk: sort libraries when linking, move external libs to lower level Ferruh Yigit
2016-06-10 18:32 ` [dpdk-dev] [PATCH v3 5/6] mk: remove library grouping during application linking Ferruh Yigit
2016-06-10 18:32 ` [dpdk-dev] [PATCH v3 6/6] mk: prevent overlinking in applications Ferruh Yigit
2016-06-11 6:34 ` Thomas Monjalon
2016-06-13 9:05 ` Ferruh Yigit
2016-06-13 9:24 ` Christian Ehrhardt
2016-06-13 9:48 ` [dpdk-dev] [PATCH] mk: fix missing DEPDIRS to avoid libarary underlinking Christian Ehrhardt
2016-06-13 10:08 ` Thomas Monjalon
2016-06-13 10:20 ` Christian Ehrhardt
2016-06-13 11:06 ` [dpdk-dev] [PATCH v2 0/2] mk: fix more library underlinking Christian Ehrhardt
2016-06-13 11:06 ` [dpdk-dev] [PATCH v2 1/2] mk: fix missing vhost dependency to pthread to avoid libarary underlinking Christian Ehrhardt
2016-06-13 11:06 ` [dpdk-dev] [PATCH v2 2/2] mk: fix missing DEPDIRS " Christian Ehrhardt
2016-06-13 14:16 ` [dpdk-dev] [PATCH v2 0/2] mk: fix more library underlinking Thomas Monjalon
2016-06-13 14:14 ` [dpdk-dev] [PATCH v2 0/6] reduce overlinking in applications Thomas Monjalon
2016-06-07 8:23 ` [dpdk-dev] [PATCH] mk: fix underlinking issues of most librte libraries Thomas Monjalon
2016-06-07 9:25 ` Panu Matilainen
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