Messages in this thread | | | Date | Wed, 19 Aug 2009 18:12:34 +0200 | From | Ingo Molnar <> | Subject | Re: [PATCH] Add minimal support for software performance counters for ia64 |
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* William Cohen <wcohen@redhat.com> wrote:
> The following patch adds minimal support for software > performance counters for ia64.
Nice!
> For the kernel the patch enables configuration of the > perf counter option, adds the perf_counter_open > syscall, and includes a minimal machine specific > asm/perf.h header file. > > For the perf tool the header perf.h includes an ia64 > specific section and the options used in the Makefile > were adjusted to allow compilation on ia64. The > -Wcast-align gives "cast increases required alignment > of target type" warning for the list_for_each_entry() > macro. The "-fno-strict-aliasing" was used to avoid > warnings for "dereferencing type-punned pointer will > break strict-aliasing rules" warnings for sscanf() > functions in util/trace-event-parse.c
Tony, Fenghua Yu, this patch already depends on .32 changes in the perfcounters tree - would be OK to you if we merged this patch into the perfcounters tree? Plus perhaps merge a syscall placeholder patch into the ia64 tree?
Thanks,
Ingo
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