[SOLVED] RTOSPlugin_FreeRTOS.so Initialization failes (FreeRTOS 10.2.1 on Reneases RX71m)

JoergE · Jul 25th 2019, 4:20pm

Hi all,

I'm am currently searching for a hard to find bug in my software and wanted to try out the threading support for JLinkGDBServer.
I have a Reneases RX71m target that runs FreeRTOS v10.2.1 with JLink V6.46

I have configUSE_PORT_OPTIMISED_TASK_SELECTION 0 and added the freertos_tasks_c_additions.h construct.

I start the server with

Shell-Script

JLinkGDBServer -rtos /opt/SEGGER/JLink/GDBServer/RTOSPlugin_FreeRTOS.so -device R5F571ML -log /tmp/gdbserv.log

and my debugger via:

Source Code

ddd --debugger "rx-elf-gdb -x debug.txt"

But the plugin initialization fails

Source Code

03-00000000-00-00023883-004B: Loading RTOS plugin: /opt/SEGGER/JLink/GDBServer/RTOSPlugin_FreeRTOS.so...
03-00000000-00-00023883-002B: RTOS plugin (API v1.0) loaded successfully
02-00000000-00-00023883-0051: T1AFFD700 023:883 JLINK_CORE_GetFound() returns 0xD31FFFF (0000ms, 0174ms total)
03-00000000-00-00023883-001C: RTOS plugin: Failed to load

The application is started by a self written bootloader (also FreeRTOS) which starts the application.
Normal breakpoints as well as halt/step and continue work as expected.

Does anyone have an idea what could be the Problem (0xD31FFFF?)

SEGGER - Arne · Jul 26th 2019, 9:50am

Hello Joerg,

the RTOS plugins currently only supports Cortex-M architectures (0x0D31FFFF == JLINK_CORE_RX71M).
If you are interested in writing your own plug-in, you can request our SDK: segger.com/downloads/jlink/#gdbserver_rtos

Best regards
Arne

JoergE · Jul 26th 2019, 10:47am

Hi Arne,

thanks for the information.
I have requested the SDK and will give it a try.

Shell-Script

Source Code

Source Code

Share