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Message-ID: <alpine.LNX.2.02.1208190807270.9099@laas.mine.nu>
Date: Sun, 19 Aug 2012 08:11:49 +0200 (CEST)
From: Jens <jensl@...s.mine.nu>
To: musl@...ts.openwall.com
Subject: Re: Building without -Wl,-Bsymbolic-functions
On Sat, 18 Aug 2012, Rich Felker wrote:
> On Sat, Aug 18, 2012 at 01:38:23PM +0200, Jens wrote:
>>
>> Hi!
>>
>> Im building musl inside an oldish uclibc environment based on uclibc
>> 0.9.30.1, gcc 4.1.2 and GNU ld version 2.17.
>>
>> The linker does not accept -Bsymbolic-functions.
>>
>> Im now building the shared library despite of this.
>>
>> How broken will the musl libc be without -Bsymbolic-functions ?
>
> If building without it entirely, the shared libc will just crash.
>
> If replacing it with -Bsymbolic, it will run, but global variables in
> libc that are accessed by the application (e.g. environ, optind, ...)
> will actually have separate copies in libc and the application, and
> thus the app won't work as expected.
>
> A patch to add -Bsymbolic-functions to old binutils would be very
> welcome... In the mean time, you could compile a new ld and pass the
> -B option to gcc to give it the path for the new ld.
Lots of enligthening information in answers to this question. Thank you!
I did as suggested and compiled a newer version of ld.
Compilation now works beautifully out of the box.
Thanks,
Jens
>
>
> Rich
>
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