[Patch][aarch64] Use IFUNCs to enable LSE instructions in libatomic on aarch64

Mon Aug 7 20:46:00 GMT 2017

It would probably help if I included the patch.

Steve Ellcey
sellcey@cavium.com

2017-08-07Â Â Steve EllceyÂ Â <sellcey@cavium.com>

	* Makefile.am (ARCH_AARCH64_LINUX_LSE): Add IFUNC_OPTIONS and
	libatomic_la_LIBADD.
	* config/linux/aarch64/host-config.h: New file.
	* config/linux/aarch64/init.c: New file.
	* configure.ac (AC_CHECK_HEADERS): Check for sys/auxv.h.
	(AC_CHECK_FUNCS): Check for getauxval.
	(ARCH_AARCH64_LINUX_LSE): New conditional for IFUNC builds.
	* configure.tgt (aarch64): Set AARCH and try_ifunc.
	(aarch64*-*-linux*) Update config_path.
	* Makefile.in: Regenerate.
	* auto-config.h.in: Regenerate.
	* configure: Regenerate.

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