[ECOS] eCos gprof for MPC8xx

[ECOS] eCos gprof for MPC8xx

[Tord Andersson]

Hi,

Do anyone know if there is an associated test case for the gprof
package? Are there any experiences using this with an MPC8xx platform?

Regards,

Tord Andersson

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Re: [ECOS] eCos gprof for MPC8xx

[Gary Thomas]

Tord Andersson said:
> Hi,
>
> Do anyone know if there is an associated test case for the gprof
> package? Are there any experiences using this with an MPC8xx platform?
>

I didn't write a test program [yet?] - I'm not sure how one would test
this functionality, not to mention making something that fit the eCos
"test" model.

As far as using it, there is a documentation chapter in the main user's
guide.  It's pretty simple - just call profile_on() much as you would on
any Linux/Unix system.  This will gather the profiling data, as well as
start up a TFTP server thread.  This is how you gather the profile data,
by running TFTP to your target (from a host) to capture (and reset) the
profile data.  This data can then be processed using 'gprof'

As for the 8xx - that's the only platform that this has been tested on!



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Re: [ECOS] eCos gprof for MPC8xx

[Gary Thomas]

Gary Thomas said:
>
> Tord Andersson said:
>> Hi,
>>
>> Do anyone know if there is an associated test case for the gprof
>> package? Are there any experiences using this with an MPC8xx platform?
>>
>
> I didn't write a test program [yet?] - I'm not sure how one would test
> this functionality, not to mention making something that fit the eCos
> "test" model.
>

Actually, today I've added the setup code for running the profiling into
the network common test "ping_test".  This can be used as an example of
how it is used.  Also, check the patch list for how to enable the support
in your platform - if you're not using a supported platform you need to
add some functions which handle the profile activity.

> As far as using it, there is a documentation chapter in the main user's
> guide.  It's pretty simple - just call profile_on() much as you would on
> any Linux/Unix system.  This will gather the profiling data, as well as
> start up a TFTP server thread.  This is how you gather the profile data,
> by running TFTP to your target (from a host) to capture (and reset) the
> profile data.  This data can then be processed using 'gprof'
>
> As for the 8xx - that's the only platform that this has been tested on!
>
>
>
> --
> Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
> and search the list archive: http://sources.redhat.com/ml/ecos-discuss
>
>




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