[PATCH] aarch64: Add memory clobber to pkey_write

Wilco Dijkstra Wilco.Dijkstra@arm.com
Wed Aug 26 15:18:02 GMT 2026


Hi,

>> Should we open a bug report for this (and does it change the code
>> generation for current wrappers)?
>
> What do you mean by "current wrappers"?
> 
> It doesn't change code generation. I've checked GCC 12..trunk and LLVM trunk.

I can't see how it could be a bug. The asm itself is at the end so can't be reordered.
You'd have to somehow inline pkey_set across DSOs...

Cheers,
Wilco


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