32 bit userland on G5

[Paul Mackerras]

David Woodhouse writes:

> 'Historical' being until about 4 years ago, around the time of
> http://ecos.sourceware.org/ml/binutils/2002-05/msg00097.html ?

That's not the one I was talking about; that appears to be about
marking the GOT and PLT as executable in the ELF file.  That may be
enough in fact to allow us to turn off read-implies-exec, though.

> We already did it in Fedora. We don't default to READ_IMPLIES_EXEC for
> 32-bit processes on the 64-bit kernel.

By patching include/asm-powerpc/elf.h?

Paul.