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Date:	Tue, 6 Oct 2015 10:23:06 +0200
From:	Ingo Molnar <>
To:	Andy Lutomirski <>
	Brian Gerst <>,
	Denys Vlasenko <>,
	Linus Torvalds <>,
	Borislav Petkov <>
Subject: Re: [PATCH v2 09/36] x86/asm: Re-add manual CFI infrastructure

* Andy Lutomirski <> wrote:

> Commit 131484c8da97 ("x86/debug: Remove perpetually broken,
> unmaintainable dwarf annotations") removed all the manual DWARF
> annotations outside the vDSO.  It also removed the macros we used
> for the manual annotations.
> Re-add the macros so that we can clean up the vDSO annotations.
> Signed-off-by: Andy Lutomirski <>
> ---
>  arch/x86/Makefile             |  10 ++-
>  arch/x86/include/asm/dwarf2.h | 170 ++++++++++++++++++++++++++++++++++++++++++
>  2 files changed, 178 insertions(+), 2 deletions(-)
>  create mode 100644 arch/x86/include/asm/dwarf2.h

Please don't add all this gunk back in!

AFAICS the later patches use just a very small subset - add only the minimal 
subset absolutely needed.


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