On 1/31/22 08:26, Richard Sandiford wrote:
Thanks for the discussion and sorry for the slow reply, was out most of
last week.
Dan Li <ashim...@linux.alibaba.com> writes:
Thanks, Ard,
On 1/26/22 00:10, Ard Biesheuvel wrote:
On Wed, 26 Jan 2022 at 08:53, Dan Li <ashim...@linux.alibaba.com> wrote:
Hi, all,
Sorry for bothering.
I'm trying to commit aarch64 scs code to the gcc and there is an issue
that I'm not sure about, could someone give me some suggestions?
(To avoid noise, I did't cc PING^3 [1] to the kernel mail list :) )
So omitting the load of X30 from the ordinary stack seems fine to me.
OK, thanks. Let's go with that for now then. There would still be
time to change our minds before GCC 12 is released, if anyone feels
that patching SCS code would be useful.
Reading it back, I think my previous message came across as sounding
like a complaint against binary patching, which wasn't the case at all.
I think it would be fine to support patching, even if it was just for a
single vendor rather than expected to be a common case. It's just that,
if we did want to support it, we'd need to document it as a requirement
(at least within GCC) and change the implementation accordingly.
Got it, then I'll implement this feature as discussed above and see
if we could add additional options for SCS later.
Thanks,
Dan
