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Re: [PATCH 2/2] x86: annotate entry points with type and size


  • To: Jan Beulich <jbeulich@xxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
  • From: Andrew Cooper <Andrew.Cooper3@xxxxxxxxxx>
  • Date: Thu, 14 Apr 2022 12:49:43 +0000
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  • Thread-topic: [PATCH 2/2] x86: annotate entry points with type and size

On 12/04/2022 11:28, Jan Beulich wrote:
> Future gas versions will generate minimalistic Dwarf debug info for
> items annotated as functions and having their sizes specified [1].
> "Borrow" Arm's END() and ENDPROC() to avoid open-coding (and perhaps
> typo-ing) the respective directives.
>
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
>
> [1] 
> https://sourceware.org/git?p=binutils-gdb.git;a=commitdiff;h=591cc9fbbfd6d51131c0f1d4a92e7893edcc7a28

I'm conflicted by this change.

You've clearly changed your mind since you rejected my patch introducing
this infrastructure and starting to use it.

Given that it is a reoccurring bug with livepatching which has been in
need of fixing since 2018, I'd organised some work to port Linux's
linkage.h as something more likely to have been acceptable.

~Andrew

 


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