[AARCH64][libgcc] Add __aarch64_sync_cache_range as lib2func

[Jim MacArthur <jim dot macarthur at arm dot com>]

This patch makes __aarch64_sync_cache_range a LIB2ADD and removes it
from lib1funcs.S. Since it is the only function in lib1funcs.S, that
file can be removed. It also changes the functionality of
__aarch64_sync_cache_range to use userland instructions instead of an
exception.

This should be applied after the patch I suggested for t-aarch64:
http://gcc.gnu.org/ml/gcc-patches/2012-05/msg01884.html.

Additions to libgcc/ChangeLog:
2012-05-31 Jim MacArthur<jim.macarthur@arm.com>

	* config.host (aarch64*-*-elf): Add t-aarch64.
	(aarch64*-*-linux*): Add t-aarch64, remove t-linux.
	* config/aarch64/lib1funcs.S: Delete.
	* config/aarch64/sync-cache.S: New file.
	* config/aarch64/t-aarch64: New file.
	* config/aarch64/t-linux: Delete.

Attachment: libgcc-sync-cache-patch-upstream
Description: Text document