Re: [tip:x86/asm] objtool: Track DRAP separately from callee-saved registers
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- Subject: Re: [tip:x86/asm] objtool: Track DRAP separately from callee-saved registers
- From: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
- Date: Fri, 11 Aug 2017 09:26:04 -0700
- Cc: Ingo Molnar <mingo@xxxxxxxxxx>, Brian Gerst <brgerst@xxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, "H. Peter Anvin" <hpa@xxxxxxxxx>, Josh Poimboeuf <jpoimboe@xxxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, Arnd Bergmann <arnd@xxxxxxxx>, Denys Vlasenko <dvlasenk@xxxxxxxxxx>, "linux-kernel@xxxxxxxxxxxxxxx" <linux-kernel@xxxxxxxxxxxxxxx>, Borislav Petkov <bp@xxxxxxxxx>, "linux-tip-commits@xxxxxxxxxxxxxxx" <linux-tip-commits@xxxxxxxxxxxxxxx>
- In-reply-to: <CALCETrW_+maP=xSsF04078O3wZRaubX5QuNc8+edv1M37j9rDQ@mail.gmail.com>
- References: <3da23a6d4c5b3c1e21fc2ccc21a73941b97ff20a.1502401017.git.jpoimboe@redhat.com> <tip-bf4d1a83758368c842c94cab9661a75ca98bc848@git.kernel.org> <CALCETrW_+maP=xSsF04078O3wZRaubX5QuNc8+edv1M37j9rDQ@mail.gmail.com>
On Fri, Aug 11, 2017 at 9:22 AM, Andy Lutomirski <luto@xxxxxxxxxx> 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
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