Task context information available on crash

[Sebastian Huber]

On 20/03/18 11:49, Matthew J Fletcher wrote:
> Thank you for the advice.
>
> So i can see that the executing task was "TIME", which is the timer 
> server. So the problem is almost certainly a bad function pointer 
> passed as the routine to invoke.
>
> I can place a breakpoint in timerserver.c, but the crash is after 
> several minutes (and many tens of thousands of timer operations).
>
> I think i will have to modify _Timer_server_Body() to copy the timer 
> id to a global variable so i can inspect it after an exception.
>
> Unless there is a better way ?

A more complicated solution might be the RTEMS trace linker:

https://devel.rtems.org/wiki/Developer/Tracing/Trace_Linker

I am not sure if ARMv7-M is supported.

You can also use a hardware tracer if available.

-- 
Sebastian Huber, embedded brains GmbH

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