DPDK patches and discussions
 help / color / Atom feed
From: Bruce Richardson <bruce.richardson@intel.com>
To: Thomas Monjalon <thomas@monjalon.net>
Cc: dev@dpdk.org, Matan Azrad <matan@mellanox.com>,
	Shahaf Shuler <shahafs@mellanox.com>,
	Viacheslav Ovsiienko <viacheslavo@mellanox.com>
Subject: Re: [dpdk-dev] [PATCH v3 3/5] net/mlx: workaround static linkage with meson
Date: Tue, 11 Feb 2020 11:43:05 +0000
Message-ID: <20200211114305.GE823@bricha3-MOBL.ger.corp.intel.com> (raw)
In-Reply-To: <10758925.RiKt1P0BV1@xps>

On Tue, Feb 11, 2020 at 12:36:06PM +0100, Thomas Monjalon wrote:
> 11/02/2020 12:29, Bruce Richardson:
> > On Tue, Feb 11, 2020 at 02:19:40AM +0100, Thomas Monjalon wrote:
> > > If ibverbs_link is static and the application choose to link DPDK
> > > as static libraries, both PMD and ibverbs libraries must be linked
> > > as static libraries. And the dependencies of ibverbs (netlink) must
> > > still be linked as shared libraries.
> > > 
> > > Unfortunately, meson forget about the static requirement for ibverbs
> > > when generating the .pc file.
> > > As a result, libibverbs, libmlx4, libmlx5 are listed in Requires.private
> > > section (allowing to be linked as shared libraries) and libnl is missing.
> > > 
> > > A fix is in progress for meson, but anyway we will have to live without
> > > such a fix until a better version of meson is widely available:
> > > 	https://github.com/mesonbuild/meson/pull/6393
> > > 
> > > In order to avoid meson suggesting shared libraries in the section
> > > Requires.private of the .pc file, the dependency object is recreated
> > > with declare_dependency():
> > > 	- cflags are extracted the libibverbs.pc
> > > 	- ldflags, from libibverbs.pc, are processed to force
> > > 	static flavor of ibverbs libraries, thanks to this syntax:
> > > 			-l:libfoo.a
> > > 
> > > Fixes: 83fff714bd27 ("net/mlx: add static ibverbs linkage with meson")
> > > 
> > > Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
> > > Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
> > > ---
> > > +if build and static_ibverbs
> > > +	# Build without adding shared libs to Requires.private
> > > +	ibv_cflags = run_command(pkgconf, '--cflags', 'libibverbs').stdout()
> > > +	ext_deps += declare_dependency(compile_args: ibv_cflags.split())
> > > +	# Add static deps ldflags to internal apps and Libs.private
> > > +	ibv_ldflags = run_command(ldflags_ibverbs_static, check:true).stdout()
> > > +	ext_deps += declare_dependency(link_args:ibv_ldflags.split())
> > > +endif
> > 
> > Is there a reason for specfiying two dependencies, rather than putting both
> > cflags and ldflags into the one dependency object?
> 
> Yes, the reason is the patch for dlopen which needs cflags only.
> 
Ah, ok, thanks for clarifying.

  reply index

Thread overview: 59+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-16  7:16 [dpdk-dev] [PATCH 0/3] add static ibverbs in meson Thomas Monjalon
2020-01-16  7:16 ` [dpdk-dev] [PATCH 1/3] buildtools: rework static pkg-config script Thomas Monjalon
2020-01-16  7:16 ` [dpdk-dev] [PATCH 2/3] build: allow to hide dependencies from pkg-config Thomas Monjalon
2020-01-17 17:34   ` Bruce Richardson
2020-01-16  7:16 ` [dpdk-dev] [PATCH 3/3] net/mlx: support static ibverbs linkage with meson Thomas Monjalon
2020-01-27 15:43 ` [dpdk-dev] [PATCH v2 0/4] add static ibverbs in meson Thomas Monjalon
2020-01-27 15:43   ` [dpdk-dev] [PATCH v2 1/4] net/mlx: add static ibverbs linkage with meson Thomas Monjalon
2020-01-27 15:44   ` [dpdk-dev] [PATCH v2 2/4] buildtools: get static mlx dependencies for meson Thomas Monjalon
2020-01-29 15:37     ` Bruce Richardson
2020-01-29 17:48       ` Thomas Monjalon
2020-01-29 17:50         ` Bruce Richardson
2020-01-29 18:49           ` Thomas Monjalon
2020-01-29 17:48       ` Bruce Richardson
2020-01-27 15:44   ` [dpdk-dev] [PATCH v2 3/4] build: allow hiding dependencies from pkg-config Thomas Monjalon
2020-01-27 15:44   ` [dpdk-dev] [PATCH v2 4/4] net/mlx: workaround static linkage with meson Thomas Monjalon
2020-02-04 11:48   ` [dpdk-dev] [PATCH v2 0/4] add static ibverbs in meson Bruce Richardson
2020-02-04 14:27     ` Thomas Monjalon
2020-02-04 14:33       ` Bruce Richardson
2020-02-04 15:14         ` Thomas Monjalon
2020-02-04 15:20           ` Bruce Richardson
2020-02-11  1:19   ` [dpdk-dev] [PATCH v3 0/5] mlx ibverbs linking " Thomas Monjalon
2020-02-11  1:19     ` [dpdk-dev] [PATCH v3 1/5] net/mlx: add static ibverbs linkage with meson Thomas Monjalon
2020-02-11  1:19     ` [dpdk-dev] [PATCH v3 2/5] buildtools: get static mlx dependencies for meson Thomas Monjalon
2020-02-11  1:19     ` [dpdk-dev] [PATCH v3 3/5] net/mlx: workaround static linkage with meson Thomas Monjalon
2020-02-11 11:29       ` Bruce Richardson
2020-02-11 11:36         ` Thomas Monjalon
2020-02-11 11:43           ` Bruce Richardson [this message]
2020-02-11  1:19     ` [dpdk-dev] [PATCH v3 4/5] net/mlx: rename meson variable for dlopen option Thomas Monjalon
2020-02-11  1:19     ` [dpdk-dev] [PATCH v3 5/5] net/mlx: fix overlinking with meson and glue dlopen Thomas Monjalon
2020-02-11 11:32       ` Bruce Richardson
2020-02-11 11:34         ` Thomas Monjalon
2020-02-11 11:33     ` [dpdk-dev] [PATCH v3 0/5] mlx ibverbs linking in meson Bruce Richardson
2020-02-12  1:59 ` [dpdk-dev] [PATCH v4 0/6] " Thomas Monjalon
2020-02-12  1:59   ` [dpdk-dev] [PATCH v4 1/6] drivers: cleanup meson build variable Thomas Monjalon
2020-02-12  9:26     ` Xu, Rosen
2020-02-12  9:32       ` Thomas Monjalon
2020-02-12 15:04         ` [dpdk-dev] [dpdklab] " Jeremy Plsek
2020-02-12 15:18           ` Jeremy Plsek
2020-02-12 16:30             ` Thomas Monjalon
2020-02-12 16:36               ` Jeremy Plsek
2020-02-12 16:42                 ` Thomas Monjalon
2020-02-12 16:46                   ` Jeremy Plsek
2020-02-12 17:38                     ` Thomas Monjalon
2020-02-12 18:03                       ` Jeremy Plsek
2020-02-12  1:59   ` [dpdk-dev] [PATCH v4 2/6] net/mlx: add static ibverbs linkage with meson Thomas Monjalon
2020-02-12  1:59   ` [dpdk-dev] [PATCH v4 3/6] buildtools: get static mlx dependencies for meson Thomas Monjalon
2020-02-12  1:59   ` [dpdk-dev] [PATCH v4 4/6] net/mlx: workaround static linkage with meson Thomas Monjalon
2020-02-12  1:59   ` [dpdk-dev] [PATCH v4 5/6] net/mlx: rename meson variable for dlopen option Thomas Monjalon
2020-02-12  1:59   ` [dpdk-dev] [PATCH v4 6/6] net/mlx: fix overlinking with meson and glue dlopen Thomas Monjalon
2020-02-12  2:08   ` [dpdk-dev] [PATCH v4 0/6] mlx ibverbs linking in meson Thomas Monjalon
2020-02-12 22:07 ` [dpdk-dev] [PATCH v5 " Thomas Monjalon
2020-02-12 22:07   ` [dpdk-dev] [PATCH v5 1/6] drivers: cleanup meson build variable Thomas Monjalon
2020-02-13  0:25     ` Xu, Rosen
2020-02-12 22:07   ` [dpdk-dev] [PATCH v5 2/6] net/mlx: add static ibverbs linkage with meson Thomas Monjalon
2020-02-12 22:07   ` [dpdk-dev] [PATCH v5 3/6] buildtools: get static mlx dependencies for meson Thomas Monjalon
2020-02-12 22:07   ` [dpdk-dev] [PATCH v5 4/6] net/mlx: workaround static linkage with meson Thomas Monjalon
2020-02-12 22:07   ` [dpdk-dev] [PATCH v5 5/6] net/mlx: rename meson variable for dlopen option Thomas Monjalon
2020-02-12 22:07   ` [dpdk-dev] [PATCH v5 6/6] net/mlx: fix overlinking with meson and glue dlopen Thomas Monjalon
2020-02-13 13:57   ` [dpdk-dev] [PATCH v5 0/6] mlx ibverbs linking in meson Raslan Darawsheh

Reply instructions:

You may reply publically to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20200211114305.GE823@bricha3-MOBL.ger.corp.intel.com \
    --to=bruce.richardson@intel.com \
    --cc=dev@dpdk.org \
    --cc=matan@mellanox.com \
    --cc=shahafs@mellanox.com \
    --cc=thomas@monjalon.net \
    --cc=viacheslavo@mellanox.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

DPDK patches and discussions

Archives are clonable:
	git clone --mirror http://inbox.dpdk.org/dev/0 dev/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 dev dev/ http://inbox.dpdk.org/dev \
		dev@dpdk.org
	public-inbox-index dev


Newsgroup available over NNTP:
	nntp://inbox.dpdk.org/inbox.dpdk.dev


AGPL code for this site: git clone https://public-inbox.org/ public-inbox