glibc/sysdeps/s390/longjmp.c

/* Copyright (C) 2014-2017 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <http://www.gnu.org/licenses/>.

   Versioned copy of setjmp/longjmp.c modified for versioning
   the reverted jmpbuf extension.  */

#include <shlib-compat.h>

#if defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_19, GLIBC_2_20)
/* We don't want the weak alias to longjmp, _longjmp, siglongjmp here,
   because we create the default/versioned symbols later.  */
# define __libc_siglongjmp __libc_siglongjmp
#endif /* SHARED && SHLIB_COMPAT (libc, GLIBC_2_19, GLIBC_2_20)  */

#include <setjmp/longjmp.c>

#if defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_19, GLIBC_2_20)
/* In glibc release 2.19 new versions of longjmp-functions were introduced,
   but were reverted before 2.20. Thus both versions are the same function.  */

strong_alias (__libc_siglongjmp, __libc_longjmp)
libc_hidden_def (__libc_longjmp)

weak_alias (__libc_siglongjmp, __v1_longjmp)
weak_alias (__libc_siglongjmp, __v2_longjmp)
versioned_symbol (libc, __v1_longjmp, _longjmp, GLIBC_2_0);
compat_symbol (libc, __v2_longjmp, _longjmp, GLIBC_2_19);

weak_alias (__libc_siglongjmp, __v1longjmp)
weak_alias (__libc_siglongjmp, __v2longjmp)
versioned_symbol (libc, __v1longjmp, longjmp, GLIBC_2_0);
compat_symbol (libc, __v2longjmp, longjmp, GLIBC_2_19);

weak_alias (__libc_siglongjmp, __v1siglongjmp)
weak_alias (__libc_siglongjmp, __v2siglongjmp)
versioned_symbol (libc, __v1siglongjmp, siglongjmp, GLIBC_2_0);
compat_symbol (libc, __v2siglongjmp, siglongjmp, GLIBC_2_19);
#endif /* SHARED && SHLIB_COMPAT (libc, GLIBC_2_19, GLIBC_2_20)  */