[PowerPC] libffi fixes and support for PowerPC64 ELFv2

[David Edelsohn]

On Thu, Nov 21, 2013 at 9:57 PM, Alan Modra <amodra@gmail.com> wrote:
> David,
> Here comes the inevitable followup..  I broke backwards compatibility
> when adding an extra field to ffi_cif.  I'd like to import again from
> upstream, where I've already fixed the problem.
>
> https://sourceware.org/ml/libffi-discuss/2013/msg00220.html
>
> Actually, it's not a straight import because many files outside of
> libffi/src/powerpc/ have diverged, but fortunately for me, not
> significantly.  For the record, I've shown the files that need
> patching below.  Identical patches went in upstream (except for
> formatting differences in Makefile.am).  Bootstrapped etc.
> powerpc64-linux and powerpc64le-linux.  OK to apply?
>
> libffi/
>         * src/powerpc/ffitarget.h: Import from upstream.
>         * src/powerpc/ffi_powerpc.h: Likewise.
>         * src/powerpc/ffi.c: Likewise.
>         * src/powerpc/ffi_sysv.c: Likewise.
>         * src/powerpc/ffi_linux64.c: Likewise.
>         * src/powerpc/sysv.S: Likewise.
>         * src/powerpc/ppc_closure.S: Likewise.
>         * src/powerpc/linux64.S: Likewise.
>         * src/powerpc/linux64_closure.S: Likewise.
>         * src/types.c: Likewise.
>         * Makefile.am (EXTRA_DIST): Add new src/powerpc files.
>         (nodist_libffi_la_SOURCES <POWERPC, POWERPC_FREEBSD>): Likewise.
>         * configure.ac (HAVE_LONG_DOUBLE_VARIANT): Define for powerpc.
>         * include/ffi.h.in (ffi_prep_types): Declare.
>         * src/prep_cif.c (ffi_prep_cif_core): Call ffi_prep_types.
>         * configure: Regenerate.
>         * fficonfig.h.in: Regenerate.
>         * Makefile.in: Regenerate.
>         * man/Makefile.in: Regenerate.
>         * include/Makefile.in: Regenerate.
>         * testsuite/Makefile.in: Regenerate.

Okay.

- David