1 /***************************************************************************
2 * Copyright (C) 2017 by Square, Inc. *
3 * Steven Stallion <stallion@squareup.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 ***************************************************************************/
23 #include <helper/types.h>
24 #include <rtos/rtos.h>
25 #include <rtos/rtos_standard_stackings.h>
26 #include <target/armv7m.h>
28 static const struct stack_register_offset rtos_uCOS_III_Cortex_M_stack_offsets
[] = {
29 { ARMV7M_R0
, 0x20, 32 }, /* r0 */
30 { ARMV7M_R1
, 0x24, 32 }, /* r1 */
31 { ARMV7M_R2
, 0x28, 32 }, /* r2 */
32 { ARMV7M_R3
, 0x2c, 32 }, /* r3 */
33 { ARMV7M_R4
, 0x00, 32 }, /* r4 */
34 { ARMV7M_R5
, 0x04, 32 }, /* r5 */
35 { ARMV7M_R6
, 0x08, 32 }, /* r6 */
36 { ARMV7M_R7
, 0x0c, 32 }, /* r7 */
37 { ARMV7M_R8
, 0x10, 32 }, /* r8 */
38 { ARMV7M_R9
, 0x14, 32 }, /* r9 */
39 { ARMV7M_R10
, 0x18, 32 }, /* r10 */
40 { ARMV7M_R11
, 0x1c, 32 }, /* r11 */
41 { ARMV7M_R12
, 0x30, 32 }, /* r12 */
42 { ARMV7M_R13
, -2, 32 }, /* sp */
43 { ARMV7M_R14
, 0x34, 32 }, /* lr */
44 { ARMV7M_PC
, 0x38, 32 }, /* pc */
45 { ARMV7M_xPSR
, 0x3c, 32 }, /* xPSR */
48 const struct rtos_register_stacking rtos_uCOS_III_Cortex_M_stacking
= {
49 0x40, /* stack_registers_size */
50 -1, /* stack_growth_direction */
51 ARRAY_SIZE(rtos_uCOS_III_Cortex_M_stack_offsets
), /* num_output_registers */
52 rtos_generic_stack_align8
, /* stack_alignment */
53 rtos_uCOS_III_Cortex_M_stack_offsets
/* register_offsets */