For BookE - e500, Andy Fleming has submit the patch for callgraph kernel
support long time ago, but the patch wasn't actually merged (I don't
know why).
Anyway, here is the patch, and I am not sure the user space apps
automatically use/enable the .backtrace without modification.
http://patchwork.ozlabs.org/linuxppc/patch?id=2783
Regards
Dai
> -----Original Message-----
> From: oprofile-list-bounces@xxxxxxxxxxxxxxxxxxxxx
> [mailto:oprofile-list-bounces@xxxxxxxxxxxxxxxxxxxxx] On
> Behalf Of Maynard Johnson
> Sent: Monday, October 09, 2006 4:19 PM
> To: Venkat Subbiah -X (vsubbiah - Piepeople Consulting, Inc. at Cisco)
> Cc: oprofile-list@xxxxxxxxxxxxxxxxxxxxx
> Subject: Re: Call graph support for powerpc
>
> Venkat Subbiah -X (vsubbiah - Piepeople Consulting, Inc. at
> Cisco) wrote:
>
> >
> > Oprofile doesn't support call graph's for powerpc. Has
> anybody tried to
> > extend oprofile to support call graph for Power PC?
> In fact, call graph support for PowerPC was added in the
> 2.6.17 kernel.
> As for distros where it's included, SLES 10 is the only one
> I know of
> at this point.
>
> The FAQ on the OProfile web site states that call graph is supported
> only on x86 and ARM. The man page for opcontrol just says "x86". I
> could submit a patch to add "PowerPC", but I'm wondering if there are
> other arch's out there where callgraph support has been added
> recently.
> Might was well update the FAQ and man page to be as accurate and
> up-to-date as possible.
>
> -Maynard
>
>
> > Thx,
> > Venkat
> >
> >
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