[PATCH] arm64: implement support for static call trampolines

[Peter Zijlstra]

On Mon, Oct 19, 2020 at 07:23:20PM +0200, Ard Biesheuvel wrote:
> I implemented a GCC plugin for this a while ago [0], but I guess we'd
> need to see some evidence first that it will actually make a
> difference.

  https://lkml.kernel.org/r/20201009174554.GS2611@hirez.programming.kicks-ass.net

might provide fertile benchmarking ground. Of course, you'd need to port
it to arm64 first :-)

Anyway, Frederic will reportedly go work on getting that in shape and
merged.

There's also this:

  https://lkml.kernel.org/r/20200820164753.3256899-1-jackmanb@chromium.org