From: "Frédéric Pétrot" <frederic.petrot@univ-grenoble-alpes.fr>
To: Vladimir Mezentsev <vladimir.mezentsev@oracle.com>,
amb <aaronrmb@gmail.com>,
binutils@sourceware.org
Subject: Re: Linker script and alias to a versioned symbol
Date: Fri, 14 Apr 2023 11:00:56 +0200 [thread overview]
Message-ID: <8c5a5680-1c65-c4a4-fde8-e2640eb11277@univ-grenoble-alpes.fr> (raw)
In-Reply-To: <0e065789-4adc-b831-9de9-3da5850aa031@oracle.com>
Hello Vladimir,
I believe what you are looking for is the VERSION command of the linker
script.
This is documented in section 3.9 of the manual.
Hope this helps,
Frédéric
Le 14/04/2023 à 02:57, Vladimir Mezentsev via Binutils a écrit :
> Hi Experts,
>
> Is it possible with compiler/linker options to change the default version of
> clock_gettime (or GLIBC) in the test below.
>
> Thank you,
> -Vladimir
>
> On 2/10/23 10:35, amb via Binutils wrote:
>> Hi,
>>
>> I would like to know whether it is possible, in a linker script, to
>> define an alias to a versioned symbol.
>>
>> As an example, let me use these two versioned symbols in glibc:
>>
>> XXXX: 00000000000XXXX 119 FUNC GLOBAL DEFAULT 15
>> clock_gettime@GLIBC_2.2.5
>> XXXX: 00000000000XXXX 119 FUNC GLOBAL DEFAULT 15
>> clock_gettime@@GLIBC_2.17
>>
>> In a linker script, is it possible to make sure that a call to
>> clock_gettime ends up invoking clock_gettime@GLIBC_2.2.5 ?
>>
>> I am familiar with how `__asm__(".symver SYM,SYM@GLIBC_VERSION");`
>> works but that's not what I am looking for. I would like to know if
>> there is a way to achieve this goal using only a linker script and
>> nothing else.
>>
>> I tried something like this:
>>
>> PROVIDE( clock_gettime = clock_gettime@GLIBC_2.2.5 );
>>
>> But it doesn't seem to work. Maybe the '@' is an invalid char above?
>>
>> Thanks
>
--
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| Frédéric Pétrot, Pr. Grenoble INP-Ensimag/TIMA |
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next prev parent reply other threads:[~2023-04-14 9:01 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-10 18:35 amb
2023-02-10 19:09 ` Vladimir Mezentsev
2023-04-14 0:57 ` Vladimir Mezentsev
2023-04-14 9:00 ` Frédéric Pétrot [this message]
2023-04-14 9:04 ` Nick Clifton
2023-04-14 9:18 ` Frédéric Pétrot
2023-04-14 9:02 ` Nick Clifton
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