Re: [PATCH] sort exception tables
From: Linus Torvalds
Date: Mon Jan 19 2004 - 12:57:42 EST
On Mon, 19 Jan 2004, David S. Miller wrote:
>
> I have no objections to this patch, however I'd like to be reminded why we
> desire to sort this stuff, performance?
Yes, we've used a binary search for the last few years to look up the
entry, because a linear search makes things like real SIGSEGV's really
_really_ slow.
The linker sorts the thing normally, but gets confused by different code
sections. And while we right now only have init/exit sections (in addition
to the normal code one), that already has caused problems several times.
Linus
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