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   1 /***************************************************************************
   2  *   Copyright (C) 2011 by Broadcom Corporation                            *
   3  *   Evan Hunter - ehunter@broadcom.com                                    *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program 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         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.           *
  19  ***************************************************************************/
  20
  21 #ifdef HAVE_CONFIG_H
  22 #include "config.h"
  23 #endif
  24
  25 #include "rtos.h"
  26 #include "target/armv7m.h"
  27 #include "rtos_standard_stackings.h"
  28
  29 static const struct stack_register_offset rtos_embkernel_Cortex_M_stack_offsets[ARMV7M_NUM_CORE_REGS] = {
  30         { 0x24, 32 },           /* r0   */
  31         { 0x28, 32 },           /* r1   */
  32         { 0x2c, 32 },           /* r2   */
  33         { 0x30, 32 },           /* r3   */
  34         { 0x00, 32 },           /* r4   */
  35         { 0x04, 32 },           /* r5   */
  36         { 0x08, 32 },           /* r6   */
  37         { 0x0c, 32 },           /* r7   */
  38         { 0x10, 32 },           /* r8   */
  39         { 0x14, 32 },           /* r9   */
  40         { 0x18, 32 },           /* r10  */
  41         { 0x1c, 32 },           /* r11  */
  42         { 0x34, 32 },           /* r12  */
  43         { -2, 32 },                 /* sp   */
  44         { 0x38, 32 },           /* lr   */
  45         { 0x3c, 32 },           /* pc   */
  46         { 0x40, 32 },           /* xPSR */
  47 };
  48
  49 const struct rtos_register_stacking rtos_embkernel_Cortex_M_stacking = {
  50         0x40,                                   /* stack_registers_size */
  51         -1,                                             /* stack_growth_direction */
  52         ARMV7M_NUM_CORE_REGS,   /* num_output_registers */
  53         rtos_generic_stack_align8,      /* stack_alignment */
  54         rtos_embkernel_Cortex_M_stack_offsets   /* register_offsets */
  55 };
  56
  57