How to Get Predefined Capture Records

[Sebastian Huber]

Hello Joel,

On 16/12/2020 22:59, Joel Sherrill wrote:
> Hi
>
> First, we have successfully managed to get the user extension and IRQ 
> trace records off a target and see them on the host. Now I'm wondering 
> how more of the predefined ones get turned on.
>
> In recorddata.h, I see 100s of events defined for standard RTEMS 
> operations but there don't appear to be calls which record those 
> events. How do those get turned on?

the original plan was to add a wrapper library and then use the GNU ld 
--wrap feature:

https://lists.rtems.org/pipermail/devel/2019-August/027574.html

This could be used to map the record events to LTTNG user space events:

https://archive.eclipse.org/tracecompass/doc/stable/org.eclipse.tracecompass.doc.user/LTTng-UST-Analyses.html

>
> We haven't tried the GCC option -finstrument-functions but that seems 
> more geared to user code and wouldn't generate the standard predefined 
> events.
This works quite well. For custom instrumentation you can use the 
rtems_record_line* rtems_record_caller_* functions.
>
> How are the RTEMS_RECORD_xxx that are already defined enabled to be 
> generated?
There is no out of the box support for them.

-- 
embedded brains GmbH
Herr Sebastian HUBER
Dornierstr. 4
82178 Puchheim
Germany
email: sebastian.huber at embedded-brains.de
phone: +49-89-18 94 741 - 16
fax:   +49-89-18 94 741 - 08

Registergericht: Amtsgericht München
Registernummer: HRB 157899
Vertretungsberechtigte Geschäftsführer: Peter Rasmussen, Thomas Dörfler
Unsere Datenschutzerklärung finden Sie hier:
https://embedded-brains.de/datenschutzerklaerung/