Hi Segher, On Sun, Dec 2, 2018 at 3:48 PM Segher Boessenkool <segher@xxxxxxxxxxxxxxxxxxx> wrote: > > On Fri, Nov 30, 2018 at 10:06:02AM +0100, Boris Petkov wrote: > > On November 29, 2018 1:25:02 PM GMT+01:00, Segher Boessenkool <segher@xxxxxxxxxxxxxxxxxxx> wrote: > > >This will only be fixed from GCC 9 on, if the compiler adopts it. The > > >kernel wants to support ancient GCC, so it will need to have a > > >workaround > > >for older GCC versions anyway. > > > > What about backporting it, like Richard says? > > Let me first get it into GCC trunk :-) > > It should backport fine, sure; and I'll work on that. > Now, I can see it in the GCC trunk. Hooray!!! commit 6de46ad5326fc5e6b730a2feb8c62d09c1561f92 Author: segher <segher@138bc75d-0d04-0410-961f-82ee72b054a4> Date: Thu Dec 6 17:56:58 2018 +0000 asm inline The Linux kernel people want a feature that makes GCC pretend some inline assembler code is tiny (while it would think it is huge), so that such code will be inlined essentially always instead of essentially never. This patch lets you say "asm inline" instead of just "asm", with the result that that inline assembler is always counted as minimum cost for inlining. It implements this for C and C++, making "inline" another asm-qualifier (supplementing "volatile" and "goto"). -- Best Regards Masahiro Yamada _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization