openocd/contrib/rtos-helpers/uCOS-III-openocd.c
Steven Stallion 1eae39b40d rtos: add support for uC/OS-III
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>
2016-12-08 12:29:35 +00:00

33 lines
1.2 KiB
C

/*
* uC/OS-III does not provide a fixed layout for OS_TCB, which makes it
* impossible to determine the appropriate offsets within the structure
* unaided. A priori knowledge of offsets based on os_dbg.c is tied to a
* specific release and thusly, brittle. The constants defined below
* provide the neccessary information OpenOCD needs to provide support
* in the most robust manner possible.
*
* This file should be linked along with the project to enable RTOS
* support for uC/OS-III.
*/
#include <os.h>
#if OS_CFG_DBG_EN == 0
#error "OS_CFG_DBG_EN is required to enable RTOS support for OpenOCD"
#endif
#define OFFSET_OF(type, member) ((CPU_SIZE_T)&(((type *)0)->member))
#ifdef __GNUC__
#define USED __attribute__((used))
#else
#define USED
#endif
const CPU_SIZE_T USED openocd_OS_TCB_StkPtr_offset = OFFSET_OF(OS_TCB, StkPtr);
const CPU_SIZE_T USED openocd_OS_TCB_NamePtr_offset = OFFSET_OF(OS_TCB, NamePtr);
const CPU_SIZE_T USED openocd_OS_TCB_TaskState_offset = OFFSET_OF(OS_TCB, TaskState);
const CPU_SIZE_T USED openocd_OS_TCB_Prio_offset = OFFSET_OF(OS_TCB, Prio);
const CPU_SIZE_T USED openocd_OS_TCB_DbgPrevPtr_offset = OFFSET_OF(OS_TCB, DbgPrevPtr);
const CPU_SIZE_T USED openocd_OS_TCB_DbgNextPtr_offset = OFFSET_OF(OS_TCB, DbgNextPtr);