oprofile updates

oprofile updates

[Robert Schuster]

[-- Attachment #1: Type: text/plain, Size: 945 bytes --]

Hi,
as you might have seen I committed a patch for oprofile 0.9.3 and added
0.9.4.

0.9.3 was applying a patch that adds armv7 support but the CPU event
files were not distributed because the patch modified a Makefile.in
(which was overwritten since OE does autogen.sh/autoreconf).

To my surprise the armv7 patch is still needed for 0.9.4 (although it
was created months ago). So I adjusted it for this version.

Oprofile 0.9.4 is interesting because it
 - supports the avr32 CPUs
 - provides libopagent

The latter is hot stuff for JIT compilers: With the library you can tell
oprofile that a JIT-created area of machine code has a certain name.
With the name and the instruction sequence itself oprofile can then
provide the same level of detailed information as it provides for normal
C and C++ functions.

Needless to say I would be happy if oprofile 0.9.4 could make it into
angstrom 2008.1. :)

Regards
Robert


[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 268 bytes --]

Re: oprofile updates

[Koen Kooi]

Robert Schuster wrote:
> Hi,
> as you might have seen I committed a patch for oprofile 0.9.3 and added
> 0.9.4.
>
> 0.9.3 was applying a patch that adds armv7 support but the CPU event
> files were not distributed because the patch modified a Makefile.in
> (which was overwritten since OE does autogen.sh/autoreconf).
>
> To my surprise the armv7 patch is still needed for 0.9.4 (although it
> was created months ago). So I adjusted it for this version.
>
> Oprofile 0.9.4 is interesting because it
>   - supports the avr32 CPUs
>   - provides libopagent
>
> The latter is hot stuff for JIT compilers: With the library you can tell
> oprofile that a JIT-created area of machine code has a certain name.
> With the name and the instruction sequence itself oprofile can then
> provide the same level of detailed information as it provides for normal
> C and C++ functions.
>
> Needless to say I would be happy if oprofile 0.9.4 could make it into
> angstrom 2008.1. :)

For which archs? It's already there for armv7a (it's part of the demo 
image): 
http://www.angstrom-distribution.org/repo/?action=details&pnm=oprofile

regards,

Koen

Re: oprofile updates

[Robert Schuster]

[-- Attachment #1: Type: text/plain, Size: 406 bytes --]

Hi Koen,

Koen Kooi schrieb:
> For which archs? It's already there for armv7a (it's part of the demo
> image):
> http://www.angstrom-distribution.org/repo/?action=details&pnm=oprofile
Interesting.

I assumed there would be PREFFERRED_VERSION for oprofile in Angstrom but
there is not (there is one for OpenMoko). Then bitbake chose the latest
and highest version: 0.9.4. :)

Regards
Robert


[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 268 bytes --]