sysdeps/stub/bsd-_setjmp.c

   1 /* BSD `setjmp' entry point to `sigsetjmp (..., 0)'.  Stub version.
   2 Copyright (C) 1994 Free Software Foundation, Inc.
   3 This file is part of the GNU C Library.
   4
   5 The GNU C Library is free software; you can redistribute it and/or
   6 modify it under the terms of the GNU Library General Public License as
   7 published by the Free Software Foundation; either version 2 of the
   8 License, or (at your option) any later version.
   9
  10 The GNU C Library is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13 Library General Public License for more details.
  14
  15 You should have received a copy of the GNU Library General Public
  16 License along with the GNU C Library; see the file COPYING.LIB.  If
  17 not, write to the Free Software Foundation, Inc., 675 Mass Ave,
  18 Cambridge, MA 02139, USA.  */
  19
  20 #include <sysdep.h>
  21
  22 #undef setjmp
  23
  24 /* This implementation in C will not usually work, because the call
  25    really needs to be a tail-call so __sigsetjmp saves the state of
  26    the caller, not the state of this `setjmp' frame which then
  27    immediate unwinds.  */
  28
  29 int
  30 setjmp (jmp_buf env)
  31 {
  32   return __sigsetjmp (env, 0);
  33 }