Messages in this thread | | | Subject | Re: [PATCH 3/3 v2] perf tool: give user better message if precise is not supported | From | Peter Zijlstra <> | Date | Fri, 14 Sep 2012 23:26:02 +0200 |
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On Fri, 2012-09-14 at 22:11 +0200, Ingo Molnar wrote: > return -EPERF_CPU_PRECISE_EV_NOTSUPP;
I just don't like having to enumerate all possible fails, I'm too lazy. Can't we be smarter about that? Could we do a {reason}x{bit-offset} like thing?
Where we limit reason to a few simple things like:
invalid out-of-range not-supported
and have the bit-offset indicate the field we're having the particular problem with?
Then all we need is a smart way to generate and map the bit-offsets without too much manual labour.
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