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Date:   Tue, 24 Nov 2009 15:39:26 -0800
From:   David Daney <ddaney@caviumnetworks.com>
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To:     Adam Nielsen <a.nielsen@shikadi.net>
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Subject: Re: Can you add a signature to the kernel ELF image?
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Adam Nielsen wrote:
> Hi all,
> 
> I'm trying to port the kernel to an NCD HMX X-Terminal (MIPS R4600), but 
> the one thing I have to do before I can actually boot the image is 
> attach a signature to it. I have the signature 'code' in assembly[1], 
> but I'm not sure how to link it so that it ends up as the first bit of 
> code in the ELF image (the very first instruction is a 'b' to jump over 
> the actual signature text.)
> 
> Without this the boot monitor will refuse to boot the kernel.  Any 
> suggestions as to how I might accomplish this?
> 

Edit the linker script (arch/mips/kernel/vmlinux.lds.S)

David Daney