1 /***************************************************************************
2 * Copyright (C) 2014 by Marian Cingel *
3 * cingel.marian@gmail.com *
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. *
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. *
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 ***************************************************************************/
25 #include "target/armv7m.h"
29 * standard exception stack
30 * ( stack base, higher memory address )
39 * extended stack in svc_pending handler
50 * - SHPR3 - 0x00 ( contains pend_svc exception priority )
51 * ( stack head, lower address, stored in 'task->STACK_PTR' )
54 static const struct stack_register_offset rtos_mqx_arm_v7m_stack_offsets[ARMV7M_NUM_CORE_REGS] = {
55 { 0x2C, 32 }, /* r0 */
56 { 0x30, 32 }, /* r1 */
57 { 0x34, 32 }, /* r2 */
58 { 0x38, 32 }, /* r3 */
59 { 0x08, 32 }, /* r4 */
60 { 0x0C, 32 }, /* r5 */
61 { 0x10, 32 }, /* r6 */
62 { 0x14, 32 }, /* r7 */
63 { 0x18, 32 }, /* r8 */
64 { 0x1C, 32 }, /* r9 */
65 { 0x20, 32 }, /* r10 */
66 { 0x24, 32 }, /* r11 */
67 { 0x3C, 32 }, /* r12 */
69 { 0x28, 32 }, /* lr */
70 { 0x44, 32 }, /* pc */
71 { 0x48, 32 }, /* xPSR */
74 const struct rtos_register_stacking rtos_mqx_arm_v7m_stacking = {
75 0x4C, /* stack_registers_size, calculate offset base address */
76 -1, /* stack_growth_direction */
77 ARMV7M_NUM_CORE_REGS, /* num_output_registers */
78 NULL, /* stack_alignment */
79 rtos_mqx_arm_v7m_stack_offsets /* register_offsets */