Hi,

This re-spin of the aarch64-tdep patch addresses the comments raised in 
the thread starting here:

http://www.sourceware.org/ml/gdb-patches/2013-01/msg00639.html

Cheers
/Marcus

Proposed ChangeLog:

2013-01-28  Jim MacArthur  <jim.macarthur@arm.com>
             Marcus Shawcroft  <marcus.shawcroft@arm.com>
             Nigel Stephens  <nigel.stephens@arm.com>
             Yufeng Zhang  <yufeng.zhang@arm.com>

         * Makefile.in (ALL_64_TARGET_OBS): Add arch64-tdep.o.
         (HFILES_NO_SRCDIR): Add aarch64-tdep.h.
         (ALLDEPFILES): Add aarch64-tdep.c.
         * aarch64-tdep.c: New file.
         * aarch64-tdep.h: New file.
         * configure.tgt: Add AArch64.
         * features/Makefile (WHICH): Add aarch64 and aarch64-without-fpu.
         (aarch64-expedite): New definition.
         * features/aarch64-core.xml: New file.
         * features/aarch64-fpu.xml: New file.
         * features/aarch64-without-fpu.c: New file (generated).
         * features/aarch64-without-fpu.xml: New file.
         * features/aarch64.c: New file (generated).
         * features/aarch64.xml: New file.
         * regformats/aarch64-without-fpu.dat: New file (generated).
         * regformats/aarch64.dat: New file (generated).