1  /* BSD `_setjmp' entry point to `sigsetjmp (..., 0)'.  Stub version.
       2     Copyright (C) 1994-2023 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 Lesser General Public
       7     License as published by the Free Software Foundation; either
       8     version 2.1 of the 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     Lesser General Public License for more details.
      14  
      15     You should have received a copy of the GNU Lesser General Public
      16     License along with the GNU C Library; if not, see
      17     <https://www.gnu.org/licenses/>.  */
      18  
      19  #include <sysdep.h>
      20  #include <setjmp.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  }
      34  libc_hidden_def (_setjmp)