glibc/sysdeps/sparc/sparc64/multiarch/ifunc-memcpy.h
Adhemerval Zanella 88684de7a6 sparc: Implement memcpy/mempcpy ifunc selection in C
This patch refactor the SPARC64 ifunc selector to a C implementation.
The x86_64 implementation is used as default, which resulted in common
definitions (ifunc-init.h) used on both architectures.  No functional
change is expected, including ifunc resolution rules.

Checked on sparc64-linux-gnu, sparcv9-linux-gnu and x86_64-linux-gnu.

	* sysdeps/sparc/sparc32/sparcv9/multiarch/memcpy-ultra1.S: New
	file.
	* sysdeps/sparc/sparc32/sparcv9/multiarch/memcpy.c: Likewise.
	* sysdeps/sparc/sparc32/sparcv9/multiarch/mempcpy.c: Likewise.
	* sysdeps/sparc/sparc64/multiarch/ifunc-memcpy.h: Likewise.
	* sysdeps/sparc/sparc64/multiarch/memcpy-ultra1.S: Likewise.
	* sysdeps/sparc/sparc64/multiarch/memcpy.c: Likewise.
	* sysdeps/sparc/sparc64/multiarch/mempcpy.c: Likewise.
	* sysdeps/sparc/sparc-ifunc.h (sparc_libc_ifunc_redirected): New
	macro.
	* sysdeps/sparc/sparc32/sparcv9/multiarch/Makefile
	[$(subdir) = string] (sysdep_routines): Add memcpy-ultra1.
	* sysdeps/sparc/sparc64/multiarch/Makefile [$(subdir) = string]
	(sysdep_routines): Add memcpy-ultra1.
	* sysdeps/sparc/sparc64/multiarch/memcpy.S: Remove file.
	* sysdeps/sparc/sparc32/sparcv9/multiarch/memcpy.S: Likewise.

Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
2017-11-28 08:53:15 -02:00

41 lines
1.6 KiB
C

/* Common definition for memcpy and mempcpy implementation.
All versions must be listed in ifunc-impl-list.c.
Copyright (C) 2017 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <ifunc-init.h>
extern __typeof (REDIRECT_NAME) OPTIMIZE (niagara4) attribute_hidden;
extern __typeof (REDIRECT_NAME) OPTIMIZE (niagara2) attribute_hidden;
extern __typeof (REDIRECT_NAME) OPTIMIZE (niagara1) attribute_hidden;
extern __typeof (REDIRECT_NAME) OPTIMIZE (ultra3) attribute_hidden;
extern __typeof (REDIRECT_NAME) OPTIMIZE (ultra1) attribute_hidden;
static inline void *
IFUNC_SELECTOR (int hwcap)
{
if (hwcap & HWCAP_SPARC_CRYPTO)
return OPTIMIZE (niagara4);
if (hwcap & HWCAP_SPARC_N2)
return OPTIMIZE (niagara2);
if (hwcap & HWCAP_SPARC_BLKINIT)
return OPTIMIZE (niagara1);
if (hwcap & HWCAP_SPARC_ULTRA3)
return OPTIMIZE (ultra3);
return OPTIMIZE (ultra1);
}