Re: Can you add a signature to the kernel ELF image?

[Adam Nielsen <a.nielsen@shikadi.net>]

> Take a look at arch/mips/kernel/head.S.  This file will be the first on
> the final linker call's command line, that is head.S's .text section will
> end at the lowest address.
Ah excellent, that combined with the linker script (to twiddle load addresses) 
is just what I'm after.
> #ifdef CONFIG_NCD_HMX
>         b       1f
>         nop
>         nop
>         .word   0x20
>         .asciz  "XncdHMX"
>         .word   0, 0, 0
> #endif
Perfect, thanks for the example, that makes it much easier.

> > [1] http://www.linux-mips.org/wiki/HMX
> The wiki page says something about a CRC but just poking a 0x20 into a
> constant address is not exactly a CRC calculation.  Not sure how this
> really is meant.
As far as I'm aware 0x20 means "ignore the CRC", I think the CRC itself is 
covered by one of the zero words.
Cheers,
Adam.