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

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Message-Id: <20060929021604.02fb6162.akpm@osdl.org>
Date:	Fri, 29 Sep 2006 02:16:04 -0700
From:	Andrew Morton <akpm@...l.org>
To:	Jeremy Fitzhardinge <jeremy@...p.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.

On Thu, 28 Sep 2006 15:54:45 -0700
Jeremy Fitzhardinge <jeremy@...p.org> wrote:

> This patch adds common handling for kernel BUGs, for use by
> architectures as they wish.  The code is derived from arch/powerpc.

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

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

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

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