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, see <http://www.gnu.org/licenses/>. *
17 ***************************************************************************/
24 #include "target/armv7m.h"
28 * standard exception stack
29 * ( stack base, higher memory address )
38 * extended stack in svc_pending handler
49 * - SHPR3 - 0x00 ( contains pend_svc exception priority )
50 * ( stack head, lower address, stored in 'task->STACK_PTR' )
53 static const struct stack_register_offset rtos_mqx_arm_v7m_stack_offsets
[ARMV7M_NUM_CORE_REGS
] = {
54 { ARMV7M_R0
, 0x2C, 32 }, /* r0 */
55 { ARMV7M_R1
, 0x30, 32 }, /* r1 */
56 { ARMV7M_R2
, 0x34, 32 }, /* r2 */
57 { ARMV7M_R3
, 0x38, 32 }, /* r3 */
58 { ARMV7M_R4
, 0x08, 32 }, /* r4 */
59 { ARMV7M_R5
, 0x0C, 32 }, /* r5 */
60 { ARMV7M_R6
, 0x10, 32 }, /* r6 */
61 { ARMV7M_R7
, 0x14, 32 }, /* r7 */
62 { ARMV7M_R8
, 0x18, 32 }, /* r8 */
63 { ARMV7M_R9
, 0x1C, 32 }, /* r9 */
64 { ARMV7M_R10
, 0x20, 32 }, /* r10 */
65 { ARMV7M_R11
, 0x24, 32 }, /* r11 */
66 { ARMV7M_R12
, 0x3C, 32 }, /* r12 */
67 { ARMV7M_R13
, -2 , 32 }, /* sp */
68 { ARMV7M_R14
, 0x28, 32 }, /* lr */
69 { ARMV7M_PC
, 0x44, 32 }, /* pc */
70 { ARMV7M_xPSR
, 0x48, 32 }, /* xPSR */
73 const struct rtos_register_stacking rtos_mqx_arm_v7m_stacking
= {
74 0x4C, /* stack_registers_size, calculate offset base address */
75 -1, /* stack_growth_direction */
76 ARMV7M_NUM_CORE_REGS
, /* num_output_registers */
77 NULL
, /* stack_alignment */
78 rtos_mqx_arm_v7m_stack_offsets
/* register_offsets */