Re: [PATCH v2 09/36] x86/asm: Re-add manual CFI infrastructure

From	Ingo Molnar <mingo@kernel.org>
Newsgroups	linux.kernel
Subject	Re: [PATCH v2 09/36] x86/asm: Re-add manual CFI infrastructure
Date	2015-10-08 16:20 +0200
Message-ID	<qhkd4-5VC-9@gated-at.bofh.it> (permalink)
References	<qgoC6-715-5@gated-at.bofh.it> <qgoLL-7cw-3@gated-at.bofh.it> <qgvNg-Gu-15@gated-at.bofh.it> <qgF9U-5H4-17@gated-at.bofh.it> <qhjgZ-4AF-7@gated-at.bofh.it>
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* Borislav Petkov <bp@alien8.de> wrote:

> On Tue, Oct 06, 2015 at 11:21:41AM -0700, Andy Lutomirski wrote:
>
> > OK, I'll strip out the push, movq, etc stuff for v3.  I'll leave all of the 
> > CFI_XYZ macros, even the unused one, because that's only a couple of lines of 
> > code and they all have very simple and obvious meanings (or as simple as the 
> > underlying directives, anyway).
> 
> If they're going to be used by the vDSO only, maybe they all should go into a 
> header which is private to the vDSO only so that people don't get any ideas and 
> the gunk starts spreading again...

Yeah. So for the vDSO code itself it's an obvious step forward: replacing black 
magic hexa encodings with symbolic directives.

Thanks,

	Ingo
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Thread

[PATCH v2 09/36] x86/asm: Re-add manual CFI infrastructure Andy Lutomirski <luto@kernel.org> - 2015-10-06 03:00 +0200
  Re: [PATCH v2 09/36] x86/asm: Re-add manual CFI infrastructure Ingo Molnar <mingo@kernel.org> - 2015-10-06 10:30 +0200
    Re: [PATCH v2 09/36] x86/asm: Re-add manual CFI infrastructure Andy Lutomirski <luto@amacapital.net> - 2015-10-06 20:30 +0200
      Re: [PATCH v2 09/36] x86/asm: Re-add manual CFI infrastructure Borislav Petkov <bp@alien8.de> - 2015-10-08 15:20 +0200
        Re: [PATCH v2 09/36] x86/asm: Re-add manual CFI infrastructure Ingo Molnar <mingo@kernel.org> - 2015-10-08 16:20 +0200
  [tip:x86/asm] x86/asm:   Re-add parts of the manual CFI infrastructure tip-bot for Andy Lutomirski <tipbot@zytor.com> - 2015-10-09 15:10 +0200

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