DPDK patches and discussions
 help / color / mirror / Atom feed
From: Thomas Monjalon <thomas@monjalon.net>
To: "Van Haaren, Harry" <harry.van.haaren@intel.com>,
	David Marchand <david.marchand@redhat.com>
Cc: dev@dpdk.org, "stable@dpdk.org" <stable@dpdk.org>,
	Ray Kinsella <mdr@ashroe.eu>, Neil Horman <nhorman@tuxdriver.com>,
	Dodji Seketeli <dodji@redhat.com>
Subject: Re: [dpdk-dev] [PATCH] service: clean references to removed symbol
Date: Thu, 08 Apr 2021 16:54:45 +0200
Message-ID: <5884528.Z6T7s29bap@thomas> (raw)
In-Reply-To: <CAJFAV8zQOL-O_qLJvOtWsqMnWZeNR_7Dh8kE73FJxzYKXO48UQ@mail.gmail.com>

08/04/2021 16:04, David Marchand:
> On Thu, Apr 8, 2021 at 3:08 PM Van Haaren, Harry
> <harry.van.haaren@intel.com> wrote:
> > > > For rte_service.h doc changes I'm all fine.
> > > >
> > > > For ABI consistency, this removes a function from the DPDK_21 version map that
> > > didn't exist in
> > > > the shared object itself. I'm not sure if that's an ABI break or not... I see ABI
> > > experts on CC,
> > > > and will let them comment on that topic.
> > >
> > > The symbol is not in the API anymore.
> > > Applications can't have a reference to this symbol without a definition.
> >
> > Agreed, however I'm not familiar enough with linking/ABI stability to
> > know if removing a symbol (even when not available in the API) could
> > affect the resulting shared object's ABI.
> 
> After a discussion with Dodji and looking at binutils, I understand
> that the versioning is applied for each symbol found in an elf object.
> So at least with binutils, non-existent nodes in a version script are
> harmless and have no impact on the generated elf.

Yes I don't see how it could break ABI.

Acked-by: Thomas Monjalon <thomas@monjalon.net>



  reply	other threads:[~2021-04-08 14:54 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-07  9:06 David Marchand
2021-04-08 12:54 ` Van Haaren, Harry
2021-04-08 12:58   ` David Marchand
2021-04-08 13:06     ` Van Haaren, Harry
2021-04-08 14:04       ` David Marchand
2021-04-08 14:54         ` Thomas Monjalon [this message]
2021-04-08 16:09 ` [dpdk-dev] [dpdk-stable] " David Marchand

Reply instructions:

You may reply publicly 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=5884528.Z6T7s29bap@thomas \
    --to=thomas@monjalon.net \
    --cc=david.marchand@redhat.com \
    --cc=dev@dpdk.org \
    --cc=dodji@redhat.com \
    --cc=harry.van.haaren@intel.com \
    --cc=mdr@ashroe.eu \
    --cc=nhorman@tuxdriver.com \
    --cc=stable@dpdk.org \
    /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

This inbox may be cloned and mirrored by anyone:

	git clone --mirror https://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/ https://inbox.dpdk.org/dev \
		dev@dpdk.org
	public-inbox-index dev

Example config snippet for mirrors.
Newsgroup available over NNTP:
	nntp://inbox.dpdk.org/inbox.dpdk.dev


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