1  /* Copyright (C) 2003-2023 Free Software Foundation, Inc.
       2     This file is part of the GNU C Library.
       3  
       4     The GNU C Library is free software; you can redistribute it and/or
       5     modify it under the terms of the GNU Lesser General Public
       6     License as published by the Free Software Foundation; either
       7     version 2.1 of the License, or (at your option) any later version.
       8  
       9     The GNU C Library is distributed in the hope that it will be useful,
      10     but WITHOUT ANY WARRANTY; without even the implied warranty of
      11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      12     Lesser General Public License for more details.
      13  
      14     You should have received a copy of the GNU Lesser General Public
      15     License along with the GNU C Library; if not, see
      16     <https://www.gnu.org/licenses/>.  */
      17  
      18  /* Default stack size.  */
      19  #define ARCH_STACK_DEFAULT_SIZE	(4 * 1024 * 1024)
      20  
      21  /* Minimum guard size.  */
      22  #define ARCH_MIN_GUARD_SIZE 0
      23  
      24  /* Required stack pointer alignment at beginning.  */
      25  #define STACK_ALIGN		16
      26  
      27  /* Minimal stack size after allocating thread descriptor and guard size.  */
      28  #define MINIMAL_REST_STACK	4096
      29  
      30  /* Location of current stack frame.  */
      31  #define CURRENT_STACK_FRAME  (stack_pointer + (2 * 128))
      32  register char *stack_pointer __asm__("%sp");