Dump Management
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,
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Marco Stornelli Embedded Software Engineer CoRiTeL - Consorzio di Ricerca sulle Telecomunicazioni http://www.coritel.it [email protected] +39 06 72582838
hI,
Quoted 1 line · Marco Stornelli
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/
Quoted 2 lines
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
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Gilad Ben-Yossef Chief Coffee Drinker Codefidence Ltd. The code is free, your time isn't.(TM) Web: http://codefidence.com Email: [email protected] Office: +972-8-9316883 ext. 201 Fax: +972-8-9316885 Mobile: +972-52-8260388 Q: How many NSA agents does it take to replace a lightbulb? A: dSva7DrYiY24yeTItKyyogFXD5gRuoRqPNQ9v6WCLLywZPINlu!
Gilad Ben-Yossef ha scritto:
Quoted 10 lines
hI,
Quoted 1 line · Marco Stornelli
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:
Quoted 9 lines
http://tuxology.net/lectures/crash-and-burn-writing-linux-application-fault-handlers/
Quoted 2 lines
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.
Signature · 7 lines
Marco Stornelli Embedded Software Engineer CoRiTeL - Consorzio di Ricerca sulle Telecomunicazioni http://www.coritel.it [email protected] +39 06 72582838