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From: Thomas Monjalon <thomas@monjalon.net>
To: Kevin Traynor <ktraynor@redhat.com>
Cc: dev@dpdk.org, david.marchand@redhat.com, stable@dpdk.org,
	Ray Kinsella <mdr@ashroe.eu>, Parav Pandit <parav@nvidia.com>,
	Xueming Li <xuemingl@nvidia.com>,
	Elena Agostini <eagostini@nvidia.com>, Ori Kam <orika@nvidia.com>,
	Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>,
	Michael Baum <michaelba@nvidia.com>
Subject: Re: [PATCH v2 2/2] build: hide local symbols in shared libraries
Date: Wed, 09 Mar 2022 19:54:19 +0100
Message-ID: <3916698.Zkmt1EvEu4@thomas> (raw)
In-Reply-To: <0e4927c4-53ae-23a6-1fb5-fa5bd8a35d83@redhat.com>

09/03/2022 11:58, Kevin Traynor:
> Hi Thomas,
> 
> On 08/03/2022 14:24, Thomas Monjalon wrote:
> > The symbols which are not listed in the version script
> > are exported by default.
> > Adding a local section with a wildcard make non-listed functions
> > and variables as hidden, as it should be in all version.map files.
> > 
> > These are the changes done in the shared libraries:
> > - DF .text  Base          auxiliary_add_device
> > - DF .text  Base          auxiliary_dev_exists
> > - DF .text  Base          auxiliary_dev_iterate
> > - DF .text  Base          auxiliary_insert_device
> > - DF .text  Base          auxiliary_is_ignored_device
> > - DF .text  Base          auxiliary_match
> > - DF .text  Base          auxiliary_on_scan
> > - DF .text  Base          auxiliary_scan
> > - DO .bss   Base          auxiliary_bus_logtype
> > - DO .data  Base          auxiliary_bus
> > - DO .bss   Base          gpu_logtype
> > 
> > There is no impact on regexdev library.
> > 
> > Because these local symbols were exported as non-internal
> > in DPDK 21.11, any change in these functions would break the ABI.
> > Exception rules are added for these experimental libraries,
> > so the ABI check will skip them until the next ABI version.
> > 
> > A check is added to avoid such miss in future.
> > 
> > Fixes: 1afce3086cf4 ("bus/auxiliary: introduce auxiliary bus")
> > Fixes: 8b8036a66e3d ("gpudev: introduce GPU device class library")
> > Cc: stable@dpdk.org
> > 
> 
> If I take this 2/2 for 21.11.1, then I also need to backport [0] so I 
> won't have errors for common_mlx5.
> 
> Any problem with taking both?
> 
> [0]
> commit c2e3059a10f2389b791d5d485fe71e666984c193
> Author: Michael Baum <michaelba@nvidia.com>
> Date:   Fri Feb 25 01:25:06 2022 +0200
> 
>      common/mlx5: consider local functions as internal

I think that's fine to backport this as well.





  reply	other threads:[~2022-03-09 18:54 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20220306092023.2461466-1-thomas@monjalon.net>
2022-03-06  9:20 ` [PATCH 1/2] regexdev: fix section attribute of symbols Thomas Monjalon
2022-03-07 10:15   ` Ori Kam
2022-03-06  9:20 ` [PATCH 2/2] build: hide local symbols in shared libraries Thomas Monjalon
     [not found] ` <20220308142412.2069408-1-thomas@monjalon.net>
2022-03-08 14:24   ` [PATCH v2 1/2] regexdev: fix section attribute of symbols Thomas Monjalon
2022-03-08 14:24   ` [PATCH v2 2/2] build: hide local symbols in shared libraries Thomas Monjalon
2022-03-09 10:58     ` Kevin Traynor
2022-03-09 18:54       ` Thomas Monjalon [this message]
2022-04-15 14:56     ` Ray Kinsella

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