[PATCH] S390: Clean setjmp, longjmp, getcontext symbols.

[Stefan Liebler]

ping

On 10/13/2015 09:35 AM, Stefan Liebler wrote:
> Hi,
>
> for each function setjmp, longjmp, getcontext, there exist a symbol
> <func> and a default/versioned symbol <func>@@GLIBC_2.x in the build
> obj-files.
> This is wrong because it should only exist an unversioned or a
> default-versioned symbol with the same name in an obj-file.
> Glibc can't be build with recent binutils. See the already fixed linker
> bug https://sourceware.org/bugzilla/show_bug.cgi?id=19073.
> Nevertheless, this patch cleans this up.
>
> Furthermore the BSD entry points setjmp, _setjmp were marked as weak,
> but should be strong as on other architectures.
> (see https://sourceware.org/ml/libc-alpha/2014-07/msg00568.html for an
> older discussion with Andreas Schwab)
>
> Some whitespace issues are corrected in sysdeps/s390/s390-64/setjmp.S,
> too. But there is no change in the assembler code.
>
> Bye Stefan
>
> ---
> 2015-10-13  Stefan Liebler  <stli@linux.vnet.ibm.com>
>
>      * sysdeps/s390/longjmp.c (longjmp, _longjmp, siglongjmp):
>      Don't create weak aliases,
>      because versioned symbols are created later.
>      * sysdeps/s390/s390-32/setjmp.S
>      (setjmp, _setjmp): Remove weak and rename to an unique name
>      in SHARED case due to existing versioned symbols.
>      * sysdeps/s390/s390-64/setjmp.S: Likewise.
>      * sysdeps/unix/sysv/linux/s390/s390-32/getcontext.S
>      (getcontext): Create weak alias only in non SHARED case.
>      * sysdeps/unix/sysv/linux/s390/s390-64/getcontext.S: Likewise.