This is after having patched gcc?
-Kip
Lars Kellogg-Stedman wrote:
> Howdy,
>
> I was hoping someone here has worked with the kernel profiling patches
> from SGI. I haven't had any luck getting them to work and could use some
> pointers.
>
> The latest patches are against kernel 2.3.99pre2; they apply cleanly, but
> the resulting kernel doesn't build. Instead, I get the following error:
>
> shm.c:142: 'THIS_MODULE' undeclared here (not in a function)
> shm.c:142: initializer element is not a constant
>
> Originally, I applied these patches to 2.3.99pre5, but ran into the
> following error when trying to build the kernel:
>
> sched.c: In function 'schedule':
> sched.c:593: Invalid 'asm' statement:
> sched.c:593: fixed or forbidden register 6 (bp) was spilled for class GENERAL_REGS.
>
> As far as I can tell, the SGI patch modified neither sched.c nor any of the
> files it includes -- if I diff the preprocessed output of the two files,
> they appear to be substantially the same.
>
> There are also patches against 2.3.49 which I have applied against 2.3.51.
> In this situation, they apply cleanly, and the kernel builds, but the
> user-space tool ('kernprof') gives the following error:
>
> $ kernprof -d time -f 1000 -t pc -b
> kernprof: kernel does not support PC sampling mode.
>
> (where the message varies for all values of -t).
>
> In all cases, the following values are defined in the kernel configuration:
>
> CONFIG_PROFILING=y
> CONFIG_PROF_FRAME_PTR=y
> CONFIG_MCOUNT=y
>
> And with 2.3.51 running, there are entries in /proc/profile.
>
> Help?
>
> -- Lars
>
> --
> Lars Kellogg-Stedman <lars@larsshack.org> --> http://www.larsshack.org/
>
> -
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