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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.
ChangeLog:
* 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.
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