linux-kernel - Re: [PATCH RFC 1/4] Generic BUG handling.

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Message-ID: <451CE84E.300@goop.org>
Date:	Fri, 29 Sep 2006 02:33:02 -0700
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	Andrew Morton <akpm@...l.org>
CC:	linux-kernel@...r.kernel.org, Andi Kleen <ak@....de>,
	Hugh Dickens <hugh@...itas.com>,
	Michael Ellerman <michael@...erman.id.au>,
	Paul Mackerras <paulus@...ba.org>
Subject: Re: [PATCH RFC 1/4] Generic BUG handling.

Andrew Morton wrote:
> For my x86_64 usualconfig .text (from objdump --headers) went from
> 0x002c55c7 down to 0x002c2bda, which is 10.5k saved.
>
> According to /usr/bin/size, vmlinux got bigger:
>
> box:/usr/src/25> size vmlinux 
>    text    data     bss     dec     hex filename
> 3597448  716340  510456 4824244  499cb4 vmlinux-before
> 3640604  716228  510456 4867288  4a44d8 vmlinux-after
>   

Good, that's what we'd hope for.  It's going to be a bigger overall than 
the previous i386 code, because it's now saving away the EIP as well as 
filename* and line for each BUG.

> But that's because size(1) is too blunt an instrument: the sum of .text and
> the new bug section got larger.
>   

size -A will tell you everything you ever wanted to know.

> I think we need to thank the powerpc guys, then take away their function
> name printing ;)
>   

I think so...

    J
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