1  /* Checking macros for setjmp functions.
       2     Copyright (C) 2009-2023 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  #ifndef _SETJMP_H
      20  # error "Never include <bits/setjmp2.h> directly; use <setjmp.h> instead."
      21  #endif
      22  
      23  /* Variant of the longjmp functions which perform some sanity checking.  */
      24  #ifdef __REDIRECT_NTH
      25  extern void __REDIRECT_NTHNL (longjmp,
      26  			      (struct __jmp_buf_tag __env[1], int __val),
      27  			      __longjmp_chk) __attribute__ ((__noreturn__));
      28  extern void __REDIRECT_NTHNL (_longjmp,
      29  			      (struct __jmp_buf_tag __env[1], int __val),
      30  			      __longjmp_chk) __attribute__ ((__noreturn__));
      31  extern void __REDIRECT_NTHNL (siglongjmp,
      32  			      (struct __jmp_buf_tag __env[1], int __val),
      33  			      __longjmp_chk) __attribute__ ((__noreturn__));
      34  #else
      35  extern void __longjmp_chk (struct __jmp_buf_tag __env[1], int __val),
      36       __THROWNL __attribute__ ((__noreturn__));
      37  # define longjmp __longjmp_chk
      38  # define _longjmp __longjmp_chk
      39  # define siglongjmp __longjmp_chk
      40  #endif