sysdeps/s390/longjmp.c

   1 /* Copyright (C) 2014-2023 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <https://www.gnu.org/licenses/>.
  17
  18    Versioned copy of setjmp/longjmp.c modified for versioning
  19    the reverted jmpbuf extension.  */
  20
  21 #include <shlib-compat.h>
  22
  23 #if defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_19, GLIBC_2_20)
  24 /* We don't want the weak alias to longjmp, _longjmp, siglongjmp here,
  25    because we create the default/versioned symbols later.  */
  26 # define __libc_siglongjmp __libc_siglongjmp
  27 #endif /* SHARED && SHLIB_COMPAT (libc, GLIBC_2_19, GLIBC_2_20)  */
  28
  29 #include <setjmp/longjmp.c>
  30
  31 #if defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_19, GLIBC_2_20)
  32 /* In glibc release 2.19 new versions of longjmp-functions were introduced,
  33    but were reverted before 2.20. Thus both versions are the same function.  */
  34
  35 strong_alias (__libc_siglongjmp, __libc_longjmp)
  36
  37 weak_alias (__libc_siglongjmp, __v1_longjmp)
  38 weak_alias (__libc_siglongjmp, __v2_longjmp)
  39 versioned_symbol (libc, __v1_longjmp, _longjmp, GLIBC_2_0);
  40 compat_symbol (libc, __v2_longjmp, _longjmp, GLIBC_2_19);
  41
  42 weak_alias (__libc_siglongjmp, __v1longjmp)
  43 weak_alias (__libc_siglongjmp, __v2longjmp)
  44 versioned_symbol (libc, __v1longjmp, longjmp, GLIBC_2_0);
  45 compat_symbol (libc, __v2longjmp, longjmp, GLIBC_2_19);
  46
  47 weak_alias (__libc_siglongjmp, __v1siglongjmp)
  48 weak_alias (__libc_siglongjmp, __v2siglongjmp)
  49 versioned_symbol (libc, __v1siglongjmp, siglongjmp, GLIBC_2_0);
  50 compat_symbol (libc, __v2siglongjmp, siglongjmp, GLIBC_2_19);
  51 #endif /* SHARED && SHLIB_COMPAT (libc, GLIBC_2_19, GLIBC_2_20)  */