re PR libffi/35484 (libffi doesn't support AIX 64bit)

re PR libffi/35484 (libffi doesn't support AIX 64bit)

2009-11-30  David Edelsohn  <edelsohn@gnu.org>

        PR target/35484
        * src/powerpc/ffitarget.h (POWERPC64): Define for PPC64 Linux and
        AIX64.
        * src/powerpc/aix.S: Implement AIX64 version.
        * src/powerpc/aix_closure.S: Implement AIX64 version.
        (ffi_closure_ASM): Use extsb, lha and displament addresses.
        * src/powerpc/ffi_darwin.c (ffi_prep_args): Implement AIX64
        support.
        (ffi_prep_cif_machdep): Same.
        (ffi_call): Same.
        (ffi_closure_helper_DARWIN): Same.

From-SVN: r154855