Dump Management

Dump Management

[Marco Stornelli]

Hi,

what's the standard way to manage the core dump and therefore the 
post-mortem debug? For my experience it could be useful to have a 
mechanism to have little dump image (only some information) to store it 
in flash and maybe to have an hook (or something like this) for each 
application to customize the dump information. What do you think about it?

Regards,
-- 
Marco Stornelli
Embedded Software Engineer
CoRiTeL - Consorzio di Ricerca sulle Telecomunicazioni
http://www.coritel.it

marco.stornelli@coritel.it
+39 06 72582838

Re: Dump Management

[Gilad Ben-Yossef]

hI,


Marco Stornelli wrote:

> what's the standard way to manage the core dump and therefore the 
> post-mortem debug? 
For most embedded systems I know, core dumps are useful on the developer 
desk and in the testing lab. For analyzing field post-mortem (where it 
is feasible), use a custom fault signal hander in your app to catch the 
relevant information and save it.

If you're interested in a tutorial in doing this, I'm giving one at this 
year OLS. Or you can just check out the slides and example code here:

http://tuxology.net/lectures/crash-and-burn-writing-linux-application-fault-handlers/ 

> For my experience it could be useful to have a mechanism to have 
> little dump image (only some information) to store it in flash and 
> maybe to have an hook (or something like this) for each application to 
> customize the dump information. What do you think about it?
>
That's exactly what a custom fault signal handler does :-)

Cheers,
Gilad

-- 
Gilad Ben-Yossef 
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Re: Dump Management

[Marco Stornelli]

Gilad Ben-Yossef ha scritto:
> hI,
> 
> 
> Marco Stornelli wrote:
> 
>> what's the standard way to manage the core dump and therefore the 
>> post-mortem debug? 
> For most embedded systems I know, core dumps are useful on the developer 
> desk and in the testing lab. For analyzing field post-mortem (where it 
> is feasible), use a custom fault signal hander in your app to catch the 
> relevant information and save it.
> 
> If you're interested in a tutorial in doing this, I'm giving one at this 
> year OLS. Or you can just check out the slides and example code here:
> 
> http://tuxology.net/lectures/crash-and-burn-writing-linux-application-fault-handlers/ 
> 
>> For my experience it could be useful to have a mechanism to have 
>> little dump image (only some information) to store it in flash and 
>> maybe to have an hook (or something like this) for each application to 
>> customize the dump information. What do you think about it?
>>
> That's exactly what a custom fault signal handler does :-)
> 
> Cheers,
> Gilad
> 

Very interesting....Thanks.

-- 
Marco Stornelli
Embedded Software Engineer
CoRiTeL - Consorzio di Ricerca sulle Telecomunicazioni
http://www.coritel.it

marco.stornelli@coritel.it
+39 06 72582838