Re: [patch] update perf_event_open() for Linux 3.19

On Tue, Feb 03, 2015 at 12:01:23PM -0500, Vince Weaver wrote:


 > @@ -237,6 +238,7 @@ enum perf_event_read_format {
 >  #define PERF_ATTR_SIZE_VER2	80	/* add: branch_sample_type */
 >  #define PERF_ATTR_SIZE_VER3	96	/* add: sample_regs_user */
 >  					/* add: sample_stack_user */
 > +#define PERF_ATTR_SIZE_VER4	104	/* add: sample_regs_intr */

I've not given this a lot of thought before, but I'm assuming these
are the 64-bit struct sizes.  It might be interesting to also
throw some 32-bit sizes in the mix.  Who knows what horrors
lie in wait for the compat syscalls.

	Dave