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   1 /***************************************************************************
   2  *   Copyright (C) 2012 by Matthias Blaicher                               *
   3  *   Matthias Blaicher - matthias@blaicher.com                             *
   4  *                                                                         *
   5  *   Copyright (C) 2011 by Broadcom Corporation                            *
   6  *   Evan Hunter - ehunter@broadcom.com                                    *
   7  *                                                                         *
   8  *   This program is free software; you can redistribute it and/or modify  *
   9  *   it under the terms of the GNU General Public License as published by  *
  10  *   the Free Software Foundation; either version 2 of the License, or     *
  11  *   (at your option) any later version.                                   *
  12  *                                                                         *
  13  *   This program is distributed in the hope that it will be useful,       *
  14  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  15  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  16  *   GNU General Public License for more details.                          *
  17  *                                                                         *
  18  *   You should have received a copy of the GNU General Public License     *
  19  *   along with this program; if not, write to the                         *
  20  *   Free Software Foundation, Inc.,                                       *
  21  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  22  ***************************************************************************/
  23
  24 #ifdef HAVE_CONFIG_H
  25 #include "config.h"
  26 #endif
  27
  28 #include "rtos.h"
  29
  30 static const struct stack_register_offset rtos_chibios_arm_v7m_stack_offsets[] = {
  31         { -1,   32 },           /* r0   */
  32         { -1,   32 },           /* r1   */
  33         { -1,   32 },           /* r2   */
  34         { -1,   32 },           /* r3   */
  35         { 0x00, 32 },           /* r4   */
  36         { 0x04, 32 },           /* r5   */
  37         { 0x08, 32 },           /* r6   */
  38         { 0x0c, 32 },           /* r7   */
  39         { 0x10, 32 },           /* r8   */
  40         { 0x14, 32 },           /* r9   */
  41         { 0x18, 32 },           /* r10  */
  42         { 0x1c, 32 },           /* r11  */
  43         { -1,   32 },           /* r12  */
  44         { -2,   32 },           /* sp   */
  45         { -1,   32 },           /* lr   */
  46         { 0x20, 32 },           /* pc   */
  47         { -1,   96 },           /* FPA1 */
  48         { -1,   96 },           /* FPA2 */
  49         { -1,   96 },           /* FPA3 */
  50         { -1,   96 },           /* FPA4 */
  51         { -1,   96 },           /* FPA5 */
  52         { -1,   96 },           /* FPA6 */
  53         { -1,   96 },           /* FPA7 */
  54         { -1,   96 },           /* FPA8 */
  55         { -1,   32 },           /* FPS  */
  56         { -1,   32 },           /* xPSR */
  57 };
  58
  59 const struct rtos_register_stacking rtos_chibios_arm_v7m_stacking = {
  60         0x24,                                   /* stack_registers_size */
  61         -1,                                     /* stack_growth_direction */
  62         26,                                     /* num_output_registers */
  63         0,                                      /* stack_alignment */
  64         rtos_chibios_arm_v7m_stack_offsets      /* register_offsets */
  65 };