Re: [PATCH v2 2/2] kallsyms: handle special absolute symbols
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- To: Kees Cook <keescook@xxxxxxxxxxxx>
- Subject: Re: [PATCH v2 2/2] kallsyms: handle special absolute symbols
- From: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
- Date: Thu, 13 Mar 2014 14:10:35 +1030
- Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Andrew Honig <ahonig@xxxxxxxxxx>, Michal Marek <mmarek@xxxxxxx>, "x86\@kernel.org" <x86@xxxxxxxxxx>, Tejun Heo <tj@xxxxxxxxxx>, Tony Luck <tony.luck@xxxxxxxxx>, Fenghua Yu <fenghua.yu@xxxxxxxxx>, linux-ia64@xxxxxxxxxxxxxxx, LKML <linux-kernel@xxxxxxxxxxxxxxx>
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Kees Cook <keescook@xxxxxxxxxxxx> writes:
> Why not just do this with 0-base-address detection like my v2? That
> would mean we don't need to remember to add this flag in the future to
> imagined new architectures that might want this 0-based per_cpu
> feature.
Because future architectures will get this right and emit absolute
symbols. I hope!
I'm swamped at the moment, but am hoping to investigate that for
x86-64. This is a stop-gap.
Cheers,
Rusty.
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