Thread support does not work for recent FreeRTOS because varialbe
'uxTopUsedPriority' used in <OPENOCD_SRC>/src/rtos/FreeRTOS.c was
obmitted in FreeRTOS.
Appended patch based on OpenOCD 0.8.0 corrects this by calculating this
variables value based on pointers available.
Regards
Matthias
>From 2cb93c0f8e74f504eee4171a16929ecb35c14d41 Mon Sep 17 00:00:00 2001
From: Matthias Meier <[email protected]>
Date: Tue, 27 Jan 2015 11:43:22 +0100
Subject: [PATCH] support for recent FreeRTOS releases without
uxTopUsedPriority variable
---
src/rtos/FreeRTOS.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/src/rtos/FreeRTOS.c b/src/rtos/FreeRTOS.c
index 57307d5..00b9f7c 100644
--- a/src/rtos/FreeRTOS.c
+++ b/src/rtos/FreeRTOS.c
@@ -221,13 +221,20 @@ static int FreeRTOS_update_threads(struct rtos *rtos)
/* Find out how many lists are needed to be read from pxReadyTasksLists, */
int64_t max_used_priority = 0;
+/*
retval = target_read_buffer(rtos->target,
rtos->symbols[FreeRTOS_VAL_uxTopUsedPriority].address,
param->pointer_width,
(uint8_t *)&max_used_priority);
+
if (retval != ERROR_OK)
return retval;
- if (max_used_priority > FREERTOS_MAX_PRIORITIES) {
+*/
+ max_used_priority = (rtos->symbols[FreeRTOS_VAL_xDelayedTaskList1].address
+ - rtos->symbols[FreeRTOS_VAL_pxReadyTasksLists].address) / param->list_width;
+ LOG_INFO("Calculated FreeRTOS max priorities: %" PRId64 "", max_used_priority);
+
+ if (max_used_priority > FREERTOS_MAX_PRIORITIES || max_used_priority < 1) {
LOG_ERROR("FreeRTOS maximum used priority is unreasonably big, not proceeding: %" PRId64 "",
max_used_priority);
return ERROR_FAIL;
--
2.1.0
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