linux-kernel - Re: PATCH/RFC: bzImage payload as compressed ELF file.

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Message-ID: <479F6AD2.8050908@zytor.com>
Date:	Tue, 29 Jan 2008 10:05:06 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Jeremy Fitzhardinge <jeremy@...p.org>
CC:	Ian Campbell <ijc@...lion.org.uk>, linux-kernel@...r.kernel.org,
	"Eric W. Biederman" <ebiederm@...ssion.com>
Subject: Re: PATCH/RFC: bzImage payload as compressed ELF file.

Jeremy Fitzhardinge wrote:
> I solved that with some linker magic.  One of the things I did was get 
> rid of tools/build and did everything in the linker.  And I worked out a 
> trick where you can get the setup code to refer to vmlinux's symbols 
> without actually linking it in (no, wait, was that to solve something 
> else?).

It's also easy enough to either use objdump -h or nm to extract info 
from vmlinux; or for some of the simpler stuff, just parse the ELF 
directly (perhaps using libelf).

There is also the -R option to ld, which imports symbols from one 
executable into another.

	-hpa
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