Messages in this thread | | | Date | Sat, 13 Jun 2009 23:00:18 +0200 | From | Ingo Molnar <> | Subject | Re: [PATCH] scripts/checksyscalls.sh: only whine perf_counter_open when supported |
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* Mike Frysinger <vapier.adi@gmail.com> wrote:
> On Fri, Jun 12, 2009 at 11:21, Ingo Molnar wrote: > > * Mike Frysinger <vapier.adi@gmail.com> wrote: > >> the perf counter code explicitly requires: > >> ... > >> - support for atomic64 types (unless i missed something, x86 is the > >> only 32bit system that supports these) > > > > A wrapper suffices - should probably be librarized into lib/. > > wonder if we can trick Arnd into doing that ...
FYI, Paul has posted the patches for generic atomic64_t today.
So the barrier of entry to perfcounters enablement is really low now, even for 32-bit architectures without 64-bit atomic ops.
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