linux-kernel - RE: [RFC PATCH 13/12] Retpoline vs. CONFIG_TRIM_UNUSED

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Message-ID: <DDC0A53C62D26D419EFD5F13B1AD3EA5BE9763BB@ORSMSX103.amr.corp.intel.com>
Date:   Sun, 7 Jan 2018 18:32:50 +0000
From:   "Lu, Hongjiu" <hongjiu.lu@...el.com>
To:     Thomas Gleixner <tglx@...utronix.de>
CC:     David Woodhouse <dwmw2@...radead.org>,
        Andi Kleen <ak@...ux.intel.com>,
        "Van De Ven, Arjan" <arjan.van.de.ven@...el.com>,
        "Tsimbalist, Igor V" <igor.v.tsimbalist@...el.com>,
        Paul Turner <pjt@...gle.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Greg Kroah-Hartman <gregkh@...ux-foundation.org>,
        Tim Chen <tim.c.chen@...ux.intel.com>,
        "Hansen, Dave" <dave.hansen@...el.com>,
        Kees Cook <keescook@...gle.com>,
        Rik van Riel <riel@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Andy Lutomirski <luto@...capital.net>,
        Jiri Kosina <jikos@...nel.org>,
        "gnomes@...rguk.ukuu.org.uk" <gnomes@...rguk.ukuu.org.uk>
Subject: RE: [RFC PATCH 13/12] Retpoline vs. CONFIG_TRIM_UNUSED_SYMBOLS

> Cc: David Woodhouse <dwmw2@...radead.org>; Andi Kleen
> <ak@...ux.intel.com>; Van De Ven, Arjan <arjan.van.de.ven@...el.com>;
> Tsimbalist, Igor V <igor.v.tsimbalist@...el.com>; Paul Turner
> <pjt@...gle.com>; LKML <linux-kernel@...r.kernel.org>; Linus Torvalds
> <torvalds@...ux-foundation.org>; Greg Kroah-Hartman <gregkh@...ux-
> foundation.org>; Tim Chen <tim.c.chen@...ux.intel.com>; Hansen, Dave
> <dave.hansen@...el.com>; Kees Cook <keescook@...gle.com>; Rik van
> Riel <riel@...hat.com>; Peter Zijlstra <peterz@...radead.org>; Andy
> Lutomirski <luto@...capital.net>; Jiri Kosina <jikos@...nel.org>;
> gnomes@...rguk.ukuu.org.uk
> Subject: RE: [RFC PATCH 13/12] Retpoline vs.
> CONFIG_TRIM_UNUSED_SYMBOLS
> 
> On Sun, 7 Jan 2018, Lu, Hongjiu wrote:
> 
> > Please checkout patches for GCC 7:
> >
> > https://github.com/hjl-tools/gcc/commits/hjl/indirect/gcc-7-branch/mas
> > ter
> >
> > For GCC trunk:
> >
> > https://github.com/hjl-tools/gcc/commits/hjl/indirect/master
> 
> What's the plan for these vs. official GCC? Is that stuff going to part of GCC
> and if so, which versions of GCC will have that?

If I get positive feedbacks from kernel folks with my GCC 7 patches today, I
will submit my patches for GCC 8 today.   After they are checked in, I will
backport them to GCC 7/6/5/4.9.

H.J.