linux-kernel - Re: [tip:x86/asm] objtool: Track DRAP separately from callee-saved registers

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: <CA+55aFwOXP0Zxk6NjDG5iEuGo_vyZtbeV2uojh2f0AH=jXWJNg@mail.gmail.com>
Date:   Fri, 11 Aug 2017 09:26:04 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Andy Lutomirski <luto@...nel.org>
Cc:     Ingo Molnar <mingo@...nel.org>, Brian Gerst <brgerst@...il.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        "H. Peter Anvin" <hpa@...or.com>,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Arnd Bergmann <arnd@...db.de>,
        Denys Vlasenko <dvlasenk@...hat.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Borislav Petkov <bp@...en8.de>,
        "linux-tip-commits@...r.kernel.org" 
        <linux-tip-commits@...r.kernel.org>
Subject: Re: [tip:x86/asm] objtool: Track DRAP separately from callee-saved registers

On Fri, Aug 11, 2017 at 9:22 AM, Andy Lutomirski <luto@...nel.org> wrote:
>
> Question 1: What does DRAP stand for?  Duplicate Return Address
> Pointer?  Dynamic ReAlignment Pointer?  I tried searching and got
> nothing.

I think it's "Dynamic Re-Alignment" register, but I may have just made that up.

                   Linus