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rtos: add support for uC/OS-III

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This patch introduces RTOS support for uC/OS-III. Currently, only
FPU-less ARM Cortex-M targets are supported. Due to the configurability
of the RTOS, an OpenOCD-specific file must be linked along with the
project to determine the correct offsets within the OS_TCB structure.

In addition to the above, a crash was fixed in rtos_get_gdb_reg_list
such that RTOS support could be used between resets without restarting
OpenOCD and support for the Hg packet was cleaned up.

Change-Id: Ide004a689e6b886185df665c00fb644629eb31d1
Signed-off-by: Steven Stallion <stallion@squareup.com>
Reviewed-on: http://openocd.zylin.com/3556
Tested-by: jenkins
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
This commit is contained in:
Steven Stallion
2016-07-15 22:01:00 -05:00
committed by Paul Fertser
parent 29964c7984
commit 1eae39b40d
7 changed files with 653 additions and 10 deletions
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53
src/rtos/rtos_ucos_iii_stackings.c Normal file
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/***************************************************************************
* Copyright (C) 2016 by Square, Inc. *
* Steven Stallion <stallion@squareup.com> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program. If not, see <http://www.gnu.org/licenses/>. *
***************************************************************************/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "rtos.h"
#include "rtos_standard_stackings.h"
#include "target/armv7m.h"
static const struct stack_register_offset rtos_uCOS_III_Cortex_M_stack_offsets[ARMV7M_NUM_CORE_REGS] = {
{ 0x20, 32 }, /* r0 */
{ 0x24, 32 }, /* r1 */
{ 0x28, 32 }, /* r2 */
{ 0x2c, 32 }, /* r3 */
{ 0x00, 32 }, /* r4 */
{ 0x04, 32 }, /* r5 */
{ 0x08, 32 }, /* r6 */
{ 0x0c, 32 }, /* r7 */
{ 0x10, 32 }, /* r8 */
{ 0x14, 32 }, /* r9 */
{ 0x18, 32 }, /* r10 */
{ 0x1c, 32 }, /* r11 */
{ 0x30, 32 }, /* r12 */
{ -2, 32 }, /* sp */
{ 0x34, 32 }, /* lr */
{ 0x38, 32 }, /* pc */
{ 0x3c, 32 }, /* xPSR */
};
const struct rtos_register_stacking rtos_uCOS_III_Cortex_M_stacking = {
0x40, /* stack_registers_size */
-1, /* stack_growth_direction */
ARMV7M_NUM_CORE_REGS, /* num_output_registers */
rtos_generic_stack_align8, /* stack_alignment */
rtos_uCOS_III_Cortex_M_stack_offsets /* register_offsets */
};