Adding arch_prepare_bpf_trampoline support for aarch64?

[Huichun Feng]

Hi Jean and the list,

Attaching BPF to fentry/fexit hooks requires
arch_prepare_bpf_trampoline(), which
AFAIK has only been implemented on x86. Is there any related ongoing patch for
aarch64?

I've found a discussion [0] on this, and seems there has no further discussion.

Any thoughts?

Thanks!
Huichun

[0] https://www.spinics.net/lists/bpf/msg35573.html