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Re: PROPOSAL: Extend inline asm syntax with size spec
- From: Segher Boessenkool <segher at kernel dot crashing dot org>
- To: Boris Petkov <bp at alien8 dot de>
- Cc: Masahiro Yamada <yamada dot masahiro at socionext dot com>, Nadav Amit <namit at vmware dot com>, Ingo Molnar <mingo at redhat dot com>, "H. Peter Anvin" <hpa at zytor dot com>, rguenther at suse dot de, matz at suse dot de, gcc at gcc dot gnu dot org, Linux Kernel Mailing List <linux-kernel at vger dot kernel dot org>, X86 ML <x86 at kernel dot org>, Sam Ravnborg <sam at ravnborg dot org>, Alok Kataria <akataria at vmware dot com>, Christopher Li <sparse at chrisli dot org>, Greg Kroah-Hartman <gregkh at linuxfoundation dot org>, Jan Beulich <JBeulich at suse dot com>, Josh Poimboeuf <jpoimboe at redhat dot com>, Juergen Gross <jgross at suse dot com>, Kate Stewart <kstewart at linuxfoundation dot org>, Kees Cook <keescook at chromium dot org>, linux-sparse at vger dot kernel dot org, "Peter Zijlstra (Intel)" <peterz at infradead dot org>, Philippe Ombredanne <pombredanne at nexb dot com>, Thomas Gleixner <tglx at linutronix dot de>, virtualization at lists dot linux-foundation dot org, Linus Torvalds <torvalds at linux-foundation dot org>, Chris Zankel <chris at zankel dot net>, Max Filippov <jcmvbkbc at gmail dot com>, linux-xtensa at linux-xtensa dot org
- Date: Fri, 30 Nov 2018 07:16:34 -0600
- Subject: Re: PROPOSAL: Extend inline asm syntax with size spec
- References: <20181003213100.189959-1-namit@vmware.com> <20181007091805.GA30687@zn.tnic> <20181007132228.GJ29268@gate.crashing.org> <alpine.LSU.2.21.1810071534220.7867@wotan.suse.de> <20181008073128.GL29268@gate.crashing.org> <alpine.LSU.2.20.1810081105350.16707@zhemvz.fhfr.qr> <20181009145330.GT29268@gate.crashing.org> <CAK7LNARmrdtyE7JRAdJH_zbfvD_cej+TGLh+5KfT20o538KUcA@mail.gmail.com> <20181129122500.GX23873@gate.crashing.org> <CF26ACBE-500C-47E8-B79D-E1ABE938031D@alien8.de>
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@kernel.crashing.org> 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.
Segher