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Message-ID: <1516277170.4937.121.camel@amazon.co.uk>
Subject: Re: [PATCH v1 tip/master 1/3] retpoline: Introduce start/end
 markers of indirect thunk
To:     Masami Hiramatsu <mhiramat@kernel.org>,
        Ingo Molnar <mingo@kernel.org>
CC:     <linux-kernel@vger.kernel.org>, Andi Kleen <ak@linux.intel.com>,
        "Greg Kroah-Hartman" <gregkh@linux-foundation.org>,
        Arjan van de Ven <arjan@linux.intel.com>,
        Peter Zijlstra <peterz@infradead.org>,
        "Ananth N Mavinakayanahalli" <ananth@linux.vnet.ibm.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        "H . Peter Anvin" <hpa@zytor.com>
In-Reply-To: <151627687913.24682.16564356005083781238.stgit@devbox>
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         <151627687913.24682.16564356005083781238.stgit@devbox>
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Date:   Thu, 18 Jan 2018 13:06:10 +0100
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From:   "Woodhouse, David" <dwmw@amazon.co.uk>
Sender: linux-kernel-owner@vger.kernel.org
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On Thu, 2018-01-18 at 21:01 +0900, Masami Hiramatsu wrote:
>=20
> +#define X86_INDIRECT_THUNK(reg)=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0\
> +=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0*(.text.__x86.indirect_thunk.##reg)

Note that we don't actually care about those being in their own
section, named after the register. That was just a hangover from the
initial GCC COMDAT implementation.

If it makes your life easier just to put them all in a single section,
go ahead.

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