1  /* Details about the machine's stack: wrapper header.
       2     Copyright (C) 2014-2023 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 _INCLUDE_STACKINFO_H
      20  #define _INCLUDE_STACKINFO_H	1
      21  
      22  /* A sysdeps/.../stackinfo.h file defines details for the CPU.
      23     It is obliged to define either _STACK_GROWS_DOWN or _STACK_GROWS_UP.  */
      24  #include_next <stackinfo.h>
      25  
      26  #if defined _STACK_GROWS_DOWN && _STACK_GROWS_DOWN
      27  # ifdef _STACK_GROWS_UP
      28  #  error "stackinfo.h should not define both!"
      29  # else
      30  #  define _STACK_GROWS_UP	0
      31  # endif
      32  #elif defined _STACK_GROWS_UP && _STACK_GROWS_UP
      33  # ifdef _STACK_GROWS_DOWN
      34  #  error "stackinfo.h should not define both!"
      35  # else
      36  #  define _STACK_GROWS_DOWN	0
      37  # endif
      38  #else
      39  # error "stackinfo.h must define _STACK_GROWS_UP or _STACK_GROWS_DOWN!"
      40  #endif
      41  
      42  #endif  /* include/stackinfo.h */