Re: [PATCH 0/8] unwind, arm64: add sframe unwinder for kernel

Song Liu <[email protected]> Thu, 30 Jan 2025 10:34:09 -0800

Newsgroups	org.kernel.vger.linux-toolchains,org.infradead.lists.linux-arm-kernel,org.kernel.vger.linux-kernel,org.kernel.vger.live-patching
Message-ID	<CAPhsuW7f5--hzr0Y3eb1JNpfNqepJuE92yq3y8dzaL_mQF+U5w@mail.gmail.com>

On Thu, Jan 30, 2025 at 9:59 AM Song Liu <[email protected]> wrote:
>
> I missed this set before sending my RFC set. If this set works well, we
> won't need the other set. I will give this one a try.

I just realized that llvm doesn't support sframe yet. So we (Meta) still
need some sframe-less approach before llvm supports sframe.

IIRC, Google also uses llvm to compile the kernel. Weinan, would
you mind share your thoughts on how we can adopt this before
llvm supports sframe? (compile arm64 kernel with gcc?)

Thanks,
Song