>
> So this means that the contents of getcpu_cache will look completely
> different if a process runs in 32bit mode or 64bit mode. Even if you're
> saying "user programs should not..." this looks odd to me.
> Is this really on purpose and do you really think that no user space
> application will ever rely on the format of getcpu_cache?
The vsyscalls do, but if anything else does it deserves breaking.
In the user headers it will also be just a array blob.
I was considering to xor it with a random value to bring the point across
more strongly, but then didn't do it. Do you think I should?
-Andi
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