linux-kernel - Re: [PATCH 2/6] x86: bug: prevent gcc distortions

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <A1189639-5368-490D-BA7E-B2911C3B9DB9@zytor.com>
Date:   Fri, 18 May 2018 12:41:17 -0700
From:   hpa@...or.com
To:     Nadav Amit <namit@...are.com>
CC:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        the arch/x86 maintainers <x86@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        Josh Poimboeuf <jpoimboe@...hat.com>
Subject: Re: [PATCH 2/6] x86: bug: prevent gcc distortions

On May 18, 2018 12:36:20 PM PDT, Nadav Amit <namit@...are.com> wrote:
>hpa@...or.com wrote:
>
>> On May 18, 2018 12:21:00 PM PDT, Linus Torvalds
><torvalds@...ux-foundation.org> wrote:
>>> On Fri, May 18, 2018 at 12:18 PM Nadav Amit <namit@...are.com>
>wrote:
>>> 
>>>> Gnu ASM manual says: "Each time you run as it assembles exactly one
>>> source
>>>> program. The source program is made up of one or more files.”
>>> 
>>> Ok, that counts as documentation, although it's confusing as hell.
>Is
>>> it
>>> one source program or multiple files again? I see what they are
>trying
>>> to
>>> say, but it really could be phrased more clearly ;)
>>> 
>>>                    Linus
>> 
>> At least we have a solution!
>
>Thanks for all your help. I will try to do it over over the weekend.
>
>Funny, I see that this “trick” (-Wa,[filename.s]) is already being used
>to
>include arch/x86/boot/code16gcc.h so I feel “safer” to use it.
>
>Regards,
>Nadav

Oh. I don't remember when we did that... might even be my doing and then I just forgot about it :)
-- 
Sent from my Android device with K-9 Mail. Please excuse my brevity.