Re: [PATCH 01/12] extarray: define helpers for arrays defined in linker scripts

From	Linus Torvalds <torvalds@linux-foundation.org>
Newsgroups	linux.kernel
Subject	Re: [PATCH 01/12] extarray: define helpers for arrays defined in linker scripts
Date	2016-11-02 16:10 +0100
Message-ID	<sz5kS-7UD-13@gated-at.bofh.it> (permalink)
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On Wed, Nov 2, 2016 at 6:14 AM, Richard Biener <rguenther@suse.de> wrote:
>
> Note while this change restored the old behavior this change was _not_
> intended to fix this particular fallout (it was to fix an inconsistency
> with respect to comparing addresses of symbols that can be interposed).
> It just happens that your externs can be interposed with ELF.

I think it should in general work for the kernel too, since as far as
I can tell, it fundamentally fixes the issue that linker scripts will
set symbol addresses to possibly alias other symbols.

So from a compiler standpoint, I think our "begin/end" linker script
symbols can be seen as interposing a larger array and give bounds for
it. No>

                  Linus

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Re: [PATCH 01/12] extarray: define helpers for arrays defined in  linker scripts Markus Trippelsdorf <markus@trippelsdorf.de> - 2016-11-02 13:20 +0100
  Re: [PATCH 01/12] extarray: define helpers for arrays defined in  linker scripts Richard Biener <rguenther@suse.de> - 2016-11-02 13:20 +0100
    Re: [PATCH 01/12] extarray: define helpers for arrays defined in  linker scripts Linus Torvalds <torvalds@linux-foundation.org> - 2016-11-02 16:10 +0100

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