1  /* pthread machine parameter definitions.  OpenRISC version.
       2     Copyright (C) 2022-2023 Free Software Foundation, Inc.
       3  
       4     This file is part of the GNU C Library.
       5  
       6     The GNU C Library is free software; you can redistribute it and/or
       7     modify it under the terms of the GNU Lesser General Public License as
       8     published by the Free Software Foundation; either version 2.1 of the
       9     License, or (at your option) any later version.
      10  
      11     The GNU C Library is distributed in the hope that it will be useful,
      12     but WITHOUT ANY WARRANTY; without even the implied warranty of
      13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      14     Lesser General Public License for more details.
      15  
      16     You should have received a copy of the GNU Lesser General Public
      17     License along with the GNU C Library; if not, see
      18     <https://www.gnu.org/licenses/>.  */
      19  
      20  /* Default stack size.  */
      21  #define ARCH_STACK_DEFAULT_SIZE (2 * 1024 * 1024)
      22  
      23  /* Minimum guard size.  */
      24  #define ARCH_MIN_GUARD_SIZE 0
      25  
      26  /* Required stack pointer alignment at beginning.  */
      27  #define STACK_ALIGN 4
      28  
      29  /* Minimal stack size after allocating thread descriptor and guard size.  */
      30  #define MINIMAL_REST_STACK 2048
      31  
      32  /* Alignment requirement for TCB.  Needs to be >= to STACK_ALIGN.  */
      33  #define TCB_ALIGNMENT 32
      34  
      35  /* Location of current stack frame.  */
      36  #define CURRENT_STACK_FRAME __builtin_frame_address (0)