linux-kernel - Re: new ELF marking

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Message-ID: <CAMe9rOo15PhiUwEZ_A-xb15-AgTvL9MOra+1X+yjDz_CrjJsag@mail.gmail.com>
Date:   Wed, 9 Aug 2017 14:24:32 -0700
From:   "H.J. Lu" <hjl.tools@...il.com>
To:     Kostya Serebryany <kcc@...gle.com>
Cc:     Kees Cook <keescook@...gle.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Binutils <binutils@...rceware.org>
Subject: Re: new ELF marking

On Wed, Aug 9, 2017 at 1:32 PM, Kostya Serebryany <kcc@...gle.com> wrote:
>> >
>> > I believe this would only be an output bit, but I'm not sure how it
>> > would be wired into binutils. Kostya, do you know any details about
>> > how AddressSanitizer might be able to create this ELF note?
>
> I don't, hopefully H.J's suggestion works.
> Will it be backward compatible?
> (i.e. will the binaries built in the new way work on the old kernels?)
>
>

Yes,  it is backward compatible by design.


-- 
H.J.