linux-kernel - Re: [PREVIEW 10/10] linkage: add .cfi

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Message-ID: <20170217131602.pxrgfaeaanrzymnv@treble>
Date:   Fri, 17 Feb 2017 07:16:02 -0600
From:   Josh Poimboeuf <jpoimboe@...hat.com>
To:     Jiri Slaby <jslaby@...e.cz>
Cc:     mingo@...hat.com, tglx@...utronix.de, hpa@...or.com,
        x86@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [PREVIEW 10/10] linkage: add .cfi_{start/end}proc to
 ENTRY/ENDPROC

On Fri, Feb 17, 2017 at 11:47:57AM +0100, Jiri Slaby wrote:
> This is just a preview, not to merged now, only later with DWARF
> unwinder series. This is what the series will serve for (aside from
> cleanup and unification).
> 
> I am aware of CFI_STARTPROC and CFI_ENDPROC left defined in other archs
> in spite of cfi annotations removal ages ago. For simplicity. I am using
> DW_ prefix here.

If objtool is going to be generating CFI instructions, why not have it
generate .cfi_startproc and .cfi_endproc too?

-- 
Josh