On Tue, Jun 11, 2013 at 06:42:26PM +0200, Robert Richter wrote:
> Note that perf tools need to support the 'attr<num>' syntax that is
> added in a separate patch set. With it we are able to run perf tool
> commands to read persistent events, e.g.:
where is this patch? I can't find it.
I also find attr<num>:<bit> a bit weird. So far we've used
<perf_event_attr::fieldname>:<bits>, so while initializing anonymous
unions is a bit difficult with 'older' GCCs and we cannot actually do:
struct perf_event_attr {
...
union {
u64 flags;
u64 disabled : 1,
...
__reserved_1 : X;
}
...
};
We could fake it in userspace by allowing things like: flags:23. It
would not be a much worse hack than attr<num>:<bit> I suppose.
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