Messages in this thread | | | Date | Tue, 12 Oct 2021 11:06:38 +0200 | From | Willy Tarreau <> | Subject | Re: [PATCH] tools/nolibc: x86: Remove `r8`, `r9` and `r10` from the clobber list |
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On Tue, Oct 12, 2021 at 03:36:44PM +0700, Ammar Faizi wrote: > I have tried to search for the documentation about this one, but I > couldn't find any. Checking at `Documentation/x86/entry_64.rst`, but > it doesn't tell anything relevant. (...)
OK thanks for the detailed story, thus I didn't miss any obvious reference.
> My stance comes from SO, Telegram group discussion, and reading source > code. Therefore, I don't think I can attach the link to it as > "authoritative information". Or can I?
You're right, that's not exactly what we can call authoritative :-)
> When I sent this patch, I also added entry_64.S's maintainers to CC > list. In hope they can help to at least acknowledge it. Mainly because > I can't find the documentation from Linux that tells about this. > > Andy, Thomas, Ingo, Borislav, H. Peter. > > Could one of you shed some light so that I can attach the link to your > message in the commit message?
Let's indeed wait for any of the x86 maintainers to confirm your analysis.
Thanks! Willy
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