sysdeps/s390/v1-longjmp.c

   1 /* Copyright (C) 2013 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    <http://www.gnu.org/licenses/>.
  17
  18    Versioned copy of sysdeps/generic/longjmp.c modified for extended
  19    jmpbuf.  */
  20
  21 #include <shlib-compat.h>
  22 #include <stddef.h>
  23 #include <signal.h>
  24 #include "v1-setjmp.h"
  25
  26 #if !defined NOT_INT_libc && defined SHARED
  27 # if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_19)
  28
  29 void
  30 __v1__libc_siglongjmp (__v1__sigjmp_buf env, int val)
  31 {
  32   /* Perform any cleanups needed by the frames being unwound.  */
  33   _longjmp_unwind (env, val);
  34
  35   if (env[0].__mask_was_saved)
  36     /* Restore the saved signal mask.  */
  37     (void) __sigprocmask (SIG_SETMASK, &env[0].__saved_mask,
  38                           (sigset_t *) NULL);
  39
  40   /* Call the machine-dependent function to restore machine state.  */
  41   __v1__longjmp (env[0].__jmpbuf, val ?: 1);
  42 }
  43
  44 #  ifndef __v1__longjmp
  45 strong_alias (__v1__libc_siglongjmp, __v1__libc_longjmp)
  46 libc_hidden_def (__v1__libc_longjmp)
  47 weak_alias (__v1__libc_siglongjmp, __v1_longjmp)
  48 weak_alias (__v1__libc_siglongjmp, __v1longjmp)
  49 weak_alias (__v1__libc_siglongjmp, __v1siglongjmp)
  50
  51 compat_symbol (libc, __v1_longjmp, _longjmp, GLIBC_2_0);
  52 compat_symbol (libc, __v1longjmp, longjmp, GLIBC_2_0);
  53 compat_symbol (libc, __v1siglongjmp, siglongjmp, GLIBC_2_0);
  54
  55 #  endif /* ifndef __v1__longjmp */
  56 # endif /* SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_19) */
  57 #endif /* if !defined NOT_INT_libc && defined SHARED */