1  /* sigstack, sigaltstack definitions.
       2     Copyright (C) 1998-2023 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 _BITS_SIGSTACK_H
      20  #define _BITS_SIGSTACK_H 1
      21  
      22  #if !defined _SIGNAL_H && !defined _SYS_UCONTEXT_H
      23  # error "Never include this file directly.  Use <signal.h> instead"
      24  #endif
      25  
      26  /* Minimum stack size for a signal handler.
      27  
      28     Yes, this should be 131072 but the constant got defined incorrectly
      29     in the kernel and we have to live with it.  Users should in any case
      30     use SIGSTKSZ as the size user-supplied buffers should have.  */
      31  #define MINSIGSTKSZ	131027
      32  
      33  /* System default stack size.  */
      34  #define SIGSTKSZ	262144
      35  
      36  #endif /* bits/sigstack.h */