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SubjectRe: Kernel profiling patch for PPC architecture now available
Graham Stoney writes:
> /proc/profile support for ppc & arm in 2.2 Updated: 16 August 2000
> ------------------------------------------ -----------------------
> The following patch adds /proc/profile kernel profiling support in the Linux
> 2.2 series kernel to those architectures that currently lack it. Previously,
> ppc and arm had fallen through the cracks and didn't support this, so the info
> in /proc/profile was always zeros.

Russell King replied:
> Unfortunately, Alan hasn't been taking the ARM patches for 2.2 kernels since
> he picked them up. Consequently, ARM in 2.2 is far far out of date, and its
> probably less hastle to just let it be in its current state.

I thought it looked a bit broken, but I stuck the call in there anyway since
it was obviously missing. One of the other things my patch does is move all
the functionally identical inlined do_profile functions out of the
architecture-specific directories and into linux/sched.h, where the other
prof stuff is. It would be nice to get this into the official kernel to
prevent the problem recurring.

> ARM in at least 2.2.14 and up has profile support.

I assume you mean the ARM-specific version rather than Alan's kernel here?

Graham Stoney
Principal Hardware/Software Engineer
Canon Information Systems Research Australia
Ph: +61 2 9805 2909 Fax: +61 2 9805 2929
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