Re: [ptxdist] Building perf from ptxdist

[<jon.bird@gd-ms.uk>]

Hi Alexander,

On 2017-10-25, Alexander Dahl wrote:

> Hello Jon,
> 
> Am Mittwoch, 25. Oktober 2017, 09:16:29 CEST schrieb jon.bird@gd-ms.uk:
>> Can anyone give me some guidelines as to how you could go about
>> building perf (held with the kernel sources) under ptxdist. In
>> particular, I need it to pick up libelf for enabling userspace tracing on target.
> 
> Go to menuconfig --> Core (libc, locales) --> kernel tools --> perf
> 
> It should just work activating and using it on target, if you set the
> right kernel config options.
> 
I don't have that option in the version of ptxdist I'm using (2016-04) so I'm guessing this is a fairly new option then? Either way, that's helpful because I can probably just lift the necessary scripts etc. into my existing version or do an upgrade.

> (It doesn't work on my target though, I asked about it on IRC lately,
> but got no help. On a at91sam9g20 SoC with 32 MB of RAM leads to perf
> segfaulting on start, and strace leads me to the assumption there's not enough memory.
> :-/ )
> 
I have a little more RAM on my target board than that so hopefully I won't run into that problem.

Thanks,

Jon.

--
Jon Bird, CEng MBCS
Software Engineer
Electronic Systems
General Dynamics United Kingdom Ltd.
Castleham Road, St Leonards on Sea, East Sussex, TN38 9NJ

Telephone: +441424798278
Email: jon.bird@gd-ms.uk
Website: www.generaldynamics.uk.com      


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