Re: [PATCH v1 1/5] scripts: Add sortextable to sort the kernel's exception table. -- Linux for MIPS


Re: [PATCH v1 1/5] scripts: Add sortextable to sort the kernel's exception table.
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To: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Subject: Re: [PATCH v1 1/5] scripts: Add sortextable to sort the kernel's exception table.
From: "H. Peter Anvin" <hpa@xxxxxxxxx>
Date: Thu, 19 Apr 2012 21:54:49 -0700
Cc: David Daney <david.s.daney@xxxxxxxxx>, David Daney <ddaney.cavm@xxxxxxxxx>, Ralf Baechle <ralf@xxxxxxxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, x86@xxxxxxxxxx, Michal Marek <mmarek@xxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, linux-mips@xxxxxxxxxxxxxx, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, David Daney <david.daney@xxxxxxxxxx>
In-reply-to: <4F90EAC1.6070508@zytor.com>
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:11.0) Gecko/20120329 Thunderbird/11.0.1

On 04/19/2012 09:49 PM, H. Peter Anvin wrote:
> 
> Ah, apparently it is possible to generate relocations relative to the
> start of the current section.
> 

Nevermind... I'm wrong.  The assembler will generate them but the linker
will produce garbage.

So I think using PC-relative relocations and have the postprocessor (or
the sort in the module loader) convert them to section-relative makes
sense...

	-hpa

References:
- [PATCH v2 0/5] Speed booting by sorting exception tables at build time.
  - From: David Daney
- [PATCH v1 1/5] scripts: Add sortextable to sort the kernel's exception table.
  - From: David Daney
- Re: [PATCH v1 1/5] scripts: Add sortextable to sort the kernel's exception table.
  - From: H. Peter Anvin
- Re: [PATCH v1 1/5] scripts: Add sortextable to sort the kernel's exception table.
  - From: David Daney
- Re: [PATCH v1 1/5] scripts: Add sortextable to sort the kernel's exception table.
  - From: Linus Torvalds
- Re: [PATCH v1 1/5] scripts: Add sortextable to sort the kernel's exception table.
  - From: H. Peter Anvin
- Re: [PATCH v1 1/5] scripts: Add sortextable to sort the kernel's exception table.
  - From: H. Peter Anvin

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