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rtos: add instructions and helper code to make FreeRTOS work again

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Run-time tested with FreeRTOS V8.1.2 (current version).

For the time being I propose this way of dealing with RTOSes that do
not export necessary information on their own.

I also suggest implementing a similar scheme for ChibiOS, exporting
the necessary struct fields' offsets via an OpenOCD-specific helper.

Change-Id: Iacf8b88004d62206215fe80011fd7592438446a3
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-on: http://openocd.zylin.com/2347
Tested-by: jenkins
This commit is contained in:
Andreas Fritiofson
2015-04-16 13:08:14 +02:00
committed by Paul Fertser
parent 6b2887e16a
commit 9dfb58e802
3 changed files with 35 additions and 4 deletions
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6
src/rtos/FreeRTOS.c
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@@ -135,7 +135,7 @@ static const struct symbols FreeRTOS_symbol_list[] = {
{ "xTasksWaitingTermination", true }, /* Only if INCLUDE_vTaskDelete */
{ "xSuspendedTaskList", true }, /* Only if INCLUDE_vTaskSuspend */
{ "uxCurrentNumberOfTasks", false },
{ "uxTopUsedPriority", false },
{ "uxTopUsedPriority", true }, /* Unavailable since v7.5.3 */
{ NULL, false }
};
@@ -231,6 +231,10 @@ static int FreeRTOS_update_threads(struct rtos *rtos)
}
/* Find out how many lists are needed to be read from pxReadyTasksLists, */
if (rtos->symbols[FreeRTOS_VAL_uxTopUsedPriority].address == 0) {
LOG_ERROR("FreeRTOS: uxTopUsedPriority is not defined, consult the OpenOCD manual for a work-around");
return ERROR_FAIL;
}
int64_t max_used_priority = 0;
retval = target_read_buffer(rtos->target,
rtos->symbols[FreeRTOS_VAL_uxTopUsedPriority].address,