linux-kernel - Re: [PATCH v1 tip/master 1/3] retpoline: Introduce start/end markers of indirect thunk

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Message-ID: <1516277170.4937.121.camel@amazon.co.uk>
Date:   Thu, 18 Jan 2018 13:06:10 +0100
From:   "Woodhouse, David" <dwmw@...zon.co.uk>
To:     Masami Hiramatsu <mhiramat@...nel.org>,
        Ingo Molnar <mingo@...nel.org>
CC:     <linux-kernel@...r.kernel.org>, Andi Kleen <ak@...ux.intel.com>,
        "Greg Kroah-Hartman" <gregkh@...ux-foundation.org>,
        Arjan van de Ven <arjan@...ux.intel.com>,
        Peter Zijlstra <peterz@...radead.org>,
        "Ananth N Mavinakayanahalli" <ananth@...ux.vnet.ibm.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        "H . Peter Anvin" <hpa@...or.com>
Subject: Re: [PATCH v1 tip/master 1/3] retpoline: Introduce start/end
 markers of indirect thunk

On Thu, 2018-01-18 at 21:01 +0900, Masami Hiramatsu wrote:
> 
> +#define X86_INDIRECT_THUNK(reg)        \
> +               *(.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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