Re: [Qemu-devel] Re: [RFC/PATCH] elfload: add FDPIC support

[Mike Frysinger]

On Mon, Jan 24, 2011 at 08:34, Stefano Bonifazi wrote:
> Is FDPIC something different than simply PIC code (position independent
> code)?

FDPIC ELF is the ELF PIE format used on NOMMU systems so that both the
text and data regions may be located anywhere.  it is the only ELF
format supported under NOMMU systems.

> I am also trying to fight with the problem of changing the starting address
> of target code for qemu-user, and I was just moving into the option of using
> PIC target code .. but the original qemu-user load_elf_binary does not work
> on them.. and I was just about to try to edit it..

i dont believe my patch accomplishes that in any way.  i will need to
force all files to be loaded at a higher address than zero for the
Blackfin arch (as the first ~4KiB is reserved for the ABI), but that
is independent of FDPIC ELF support.
-mike