[PATCH 4/5] powerpc: Make the 64-bit kernel as a position-independent executable

[Paul Mackerras]

Geert Uytterhoeven writes:

> This part broke ppc32:
> 
> | arch/powerpc/kernel/prom.c: In function 'early_init_devtree':
> | arch/powerpc/kernel/prom.c:1166: error: '__end_interrupts' undeclared (first use in this function)
> | arch/powerpc/kernel/prom.c:1166: error: (Each undeclared identifier is reported only once
> | arch/powerpc/kernel/prom.c:1166: error: for each function it appears in.)

I'm not totally surprised I broke ppc32 somewhere along the line
there. :)  I think we will end up with having to have a #ifdef
CONFIG_RELOCATABLE in there or maybe a test on PHYSICAL_START.  It
will depend a bit on whether we want to make relocatable 32-bit
kernels as PIEs as well.

Paul.