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From: Ryan Burn <rnickb731@gmail.com>
To: Florian Weimer <fw@deneb.enyo.de>
Cc: Ryan Burn via Libc-help <libc-help@sourceware.org>
Subject: Re: Trouble with portable linking
Date: Thu, 17 Dec 2020 12:47:44 -0800	[thread overview]
Message-ID: <CACqP_wwR2zeXZgtwASAXQ7+HFXz85DeLA8zZH2RGJKGwkiC8vA@mail.gmail.com> (raw)
In-Reply-To: <87lfdwdwb4.fsf@mid.deneb.enyo.de>

On Thu, Dec 17, 2020 at 12:14 PM Florian Weimer <fw@deneb.enyo.de> wrote:

>
> If you want to be compatible with glibc versions that check the
> embedded soname in symbol versions (which is not visible in the @
> syntax), you need to build a stub library that defines the required
> symbol versions in the right shared object.  There is no way to
> achieve this with .symver directives.

Thanks for the response! Could you elaborate a little more on how I
can build the stub library?

If I understand correctly, newer versions of glibc will resolve a
versioned symbol even if the embedded soname doesn't match. Is there a
way to explicitly define the soname so that I can specify it to
libpthread? Then it would work with both newer and older versions of
glibc, right?

  reply	other threads:[~2020-12-17 20:47 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-17 19:57 Ryan Burn
2020-12-17 20:14 ` Florian Weimer
2020-12-17 20:47   ` Ryan Burn [this message]
2020-12-17 20:55     ` Florian Weimer
2020-12-17 21:08       ` Ryan Burn
2020-12-18  7:48         ` Florian Weimer

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