[thirdparty/glibc.git] / sysdeps / powerpc / powerpc64 / multiarch / ifunc-impl-list.c

/* Enumerate available IFUNC implementations of a function.  PowerPC64 version.
   Copyright (C) 2013 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 <assert.h>
#include <string.h>
#include <wchar.h>
#include <ldsodefs.h>
#include <ifunc-impl-list.h>

/* Maximum number of IFUNC implementations.  */
#define MAX_IFUNC	6

size_t
__libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
			size_t max)
{
  assert (max >= MAX_IFUNC);

  size_t i = 0;

  unsigned long int hwcap = GLRO(dl_hwcap);
  /* hwcap contains only the latest supported ISA, the code checks which is
     and fills the previous supported ones.  */
  if (hwcap & PPC_FEATURE_ARCH_2_06)
    hwcap |= PPC_FEATURE_ARCH_2_05 | PPC_FEATURE_POWER5_PLUS |
             PPC_FEATURE_POWER5 | PPC_FEATURE_POWER4;
  else if (hwcap & PPC_FEATURE_ARCH_2_05)
    hwcap |= PPC_FEATURE_POWER5_PLUS | PPC_FEATURE_POWER5 | PPC_FEATURE_POWER4;
  else if (hwcap & PPC_FEATURE_POWER5_PLUS)
    hwcap |= PPC_FEATURE_POWER5 | PPC_FEATURE_POWER4;
  else if (hwcap & PPC_FEATURE_POWER5)
    hwcap |= PPC_FEATURE_POWER4;

#ifdef SHARED
  /* Support sysdeps/powerpc/powerpc64/multiarch/memcpy.c.  */
  IFUNC_IMPL (i, name, memcpy,
	      IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_HAS_VSX,
			      __memcpy_power7)
	      IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_ARCH_2_06,
			      __memcpy_a2)
	      IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_ARCH_2_05,
			      __memcpy_power6)
	      IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_CELL_BE,
			      __memcpy_cell)
	      IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_POWER4,
			      __memcpy_power4)
	      IFUNC_IMPL_ADD (array, i, memcpy, 1, __memcpy_ppc))

  /* Support sysdeps/powerpc/powerpc64/multiarch/memset.c.  */
  IFUNC_IMPL (i, name, memset,
	      IFUNC_IMPL_ADD (array, i, memset, hwcap & PPC_FEATURE_HAS_VSX,
			      __memset_power7)
	      IFUNC_IMPL_ADD (array, i, memset, hwcap & PPC_FEATURE_ARCH_2_05,
			      __memset_power6)
	      IFUNC_IMPL_ADD (array, i, memset, hwcap & PPC_FEATURE_POWER4,
			      __memset_power4)
	      IFUNC_IMPL_ADD (array, i, memset, 1, __memset_ppc))
#endif

  /* Support sysdeps/powerpc/powerpc64/multiarch/memcmp.c.  */
  IFUNC_IMPL (i, name, memcmp,
	      IFUNC_IMPL_ADD (array, i, memcmp, hwcap & PPC_FEATURE_HAS_VSX,
			      __memcmp_power7)
	      IFUNC_IMPL_ADD (array, i, memcmp, hwcap & PPC_FEATURE_POWER4,
			      __memcmp_power4)
	      IFUNC_IMPL_ADD (array, i, memcmp, 1, __memcmp_ppc))

  /* Support sysdeps/powerpc/powerpc64/multiarch/bzero.c.  */
  IFUNC_IMPL (i, name, bzero,
	      IFUNC_IMPL_ADD (array, i, bzero, hwcap & PPC_FEATURE_HAS_VSX,
			      __bzero_power7)
	      IFUNC_IMPL_ADD (array, i, bzero, hwcap & PPC_FEATURE_ARCH_2_05,
			      __bzero_power6)
	      IFUNC_IMPL_ADD (array, i, bzero, hwcap & PPC_FEATURE_POWER4,
			      __bzero_power4)
	      IFUNC_IMPL_ADD (array, i, bzero, 1, __bzero_ppc))

  /* Support sysdeps/powerpc/powerpc64/multiarch/mempcpy.c.  */
  IFUNC_IMPL (i, name, mempcpy,
	      IFUNC_IMPL_ADD (array, i, mempcpy,
			      hwcap & PPC_FEATURE_HAS_VSX,
			      __mempcpy_power7)
	      IFUNC_IMPL_ADD (array, i, mempcpy, 1,
			      __mempcpy_ppc))

  /* Support sysdeps/powerpc/powerpc64/multiarch/memchr.c.  */
  IFUNC_IMPL (i, name, memchr,
	      IFUNC_IMPL_ADD (array, i, memchr,
			      hwcap & PPC_FEATURE_HAS_VSX,
			      __memchr_power7)
	      IFUNC_IMPL_ADD (array, i, memchr, 1,
			      __memchr_ppc))

  /* Support sysdeps/powerpc/powerpc64/multiarch/memrchr.c.  */
  IFUNC_IMPL (i, name, memrchr,
	      IFUNC_IMPL_ADD (array, i, memrchr,
			      hwcap & PPC_FEATURE_HAS_VSX,
			      __memrchr_power7)
	      IFUNC_IMPL_ADD (array, i, memrchr, 1,
			      __memrchr_ppc))

  /* Support sysdeps/powerpc/powerpc64/multiarch/rawmemchr.c.  */
  IFUNC_IMPL (i, name, rawmemchr,
	      IFUNC_IMPL_ADD (array, i, rawmemchr,
			      hwcap & PPC_FEATURE_HAS_VSX,
			      __rawmemchr_power7)
	      IFUNC_IMPL_ADD (array, i, rawmemchr, 1,
			      __rawmemchr_ppc))

  return i;
}
Commit	Line	Data
b5beafbc AZ	1	/* Enumerate available IFUNC implementations of a function. PowerPC64 version.
	2	Copyright (C) 2013 Free Software Foundation, Inc.
	3	This file is part of the GNU C Library.
	4
	5	The GNU C Library is free software; you can redistribute it and/or
	6	modify it under the terms of the GNU Lesser General Public
	7	License as published by the Free Software Foundation; either
	8	version 2.1 of the License, or (at your option) any later version.
	9
	10	The GNU C Library is distributed in the hope that it will be useful,
	11	but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	Lesser General Public License for more details.
	14
	15	You should have received a copy of the GNU Lesser General Public
	16	License along with the GNU C Library; if not, see
	17	<http://www.gnu.org/licenses/>. */
	18
	19	#include <assert.h>
	20	#include <string.h>
	21	#include <wchar.h>
	22	#include <ldsodefs.h>
	23	#include <ifunc-impl-list.h>
	24
	25	/* Maximum number of IFUNC implementations. */
	26	#define MAX_IFUNC 6
	27
	28	size_t
	29	__libc_ifunc_impl_list (const char name, struct libc_ifunc_impl array,
	30	size_t max)
	31	{
	32	assert (max >= MAX_IFUNC);
	33
	34	size_t i = 0;
	35
	36	unsigned long int hwcap = GLRO(dl_hwcap);
	37	/* hwcap contains only the latest supported ISA, the code checks which is
	38	and fills the previous supported ones. */
	39	if (hwcap & PPC_FEATURE_ARCH_2_06)
	40	hwcap \|= PPC_FEATURE_ARCH_2_05 \| PPC_FEATURE_POWER5_PLUS \|
	41	PPC_FEATURE_POWER5 \| PPC_FEATURE_POWER4;
	42	else if (hwcap & PPC_FEATURE_ARCH_2_05)
	43	hwcap \|= PPC_FEATURE_POWER5_PLUS \| PPC_FEATURE_POWER5 \| PPC_FEATURE_POWER4;
	44	else if (hwcap & PPC_FEATURE_POWER5_PLUS)
	45	hwcap \|= PPC_FEATURE_POWER5 \| PPC_FEATURE_POWER4;
	46	else if (hwcap & PPC_FEATURE_POWER5)
	47	hwcap \|= PPC_FEATURE_POWER4;
	48
	49	#ifdef SHARED
	50	/* Support sysdeps/powerpc/powerpc64/multiarch/memcpy.c. */
	51	IFUNC_IMPL (i, name, memcpy,
	52	IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_HAS_VSX,
	53	__memcpy_power7)
	54	IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_ARCH_2_06,
	55	__memcpy_a2)
	56	IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_ARCH_2_05,
	57	__memcpy_power6)
	58	IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_CELL_BE,
	59	__memcpy_cell)
	60	IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_POWER4,
	61	__memcpy_power4)
	62	IFUNC_IMPL_ADD (array, i, memcpy, 1, __memcpy_ppc))
8a29a3d0 AZ	63
	64	/* Support sysdeps/powerpc/powerpc64/multiarch/memset.c. */
	65	IFUNC_IMPL (i, name, memset,
	66	IFUNC_IMPL_ADD (array, i, memset, hwcap & PPC_FEATURE_HAS_VSX,
	67	__memset_power7)
	68	IFUNC_IMPL_ADD (array, i, memset, hwcap & PPC_FEATURE_ARCH_2_05,
	69	__memset_power6)
	70	IFUNC_IMPL_ADD (array, i, memset, hwcap & PPC_FEATURE_POWER4,
	71	__memset_power4)
	72	IFUNC_IMPL_ADD (array, i, memset, 1, __memset_ppc))
b5beafbc AZ	73	#endif
b5beafbc AZ	74
07253fcf AZ	75	/* Support sysdeps/powerpc/powerpc64/multiarch/memcmp.c. */
	76	IFUNC_IMPL (i, name, memcmp,
	77	IFUNC_IMPL_ADD (array, i, memcmp, hwcap & PPC_FEATURE_HAS_VSX,
	78	__memcmp_power7)
	79	IFUNC_IMPL_ADD (array, i, memcmp, hwcap & PPC_FEATURE_POWER4,
	80	__memcmp_power4)
	81	IFUNC_IMPL_ADD (array, i, memcmp, 1, __memcmp_ppc))
	82
8a29a3d0 AZ	83	/* Support sysdeps/powerpc/powerpc64/multiarch/bzero.c. */
	84	IFUNC_IMPL (i, name, bzero,
	85	IFUNC_IMPL_ADD (array, i, bzero, hwcap & PPC_FEATURE_HAS_VSX,
	86	__bzero_power7)
	87	IFUNC_IMPL_ADD (array, i, bzero, hwcap & PPC_FEATURE_ARCH_2_05,
	88	__bzero_power6)
	89	IFUNC_IMPL_ADD (array, i, bzero, hwcap & PPC_FEATURE_POWER4,
	90	__bzero_power4)
	91	IFUNC_IMPL_ADD (array, i, bzero, 1, __bzero_ppc))
	92
f00be62b AZ	93	/* Support sysdeps/powerpc/powerpc64/multiarch/mempcpy.c. */
	94	IFUNC_IMPL (i, name, mempcpy,
	95	IFUNC_IMPL_ADD (array, i, mempcpy,
	96	hwcap & PPC_FEATURE_HAS_VSX,
	97	__mempcpy_power7)
	98	IFUNC_IMPL_ADD (array, i, mempcpy, 1,
	99	__mempcpy_ppc))
	100
870f8676 AZ	101	/* Support sysdeps/powerpc/powerpc64/multiarch/memchr.c. */
	102	IFUNC_IMPL (i, name, memchr,
	103	IFUNC_IMPL_ADD (array, i, memchr,
	104	hwcap & PPC_FEATURE_HAS_VSX,
	105	__memchr_power7)
	106	IFUNC_IMPL_ADD (array, i, memchr, 1,
	107	__memchr_ppc))
	108
cd05ba91 AZ	109	/* Support sysdeps/powerpc/powerpc64/multiarch/memrchr.c. */
	110	IFUNC_IMPL (i, name, memrchr,
	111	IFUNC_IMPL_ADD (array, i, memrchr,
	112	hwcap & PPC_FEATURE_HAS_VSX,
	113	__memrchr_power7)
	114	IFUNC_IMPL_ADD (array, i, memrchr, 1,
	115	__memrchr_ppc))
	116
1fd005ad AZ	117	/* Support sysdeps/powerpc/powerpc64/multiarch/rawmemchr.c. */
	118	IFUNC_IMPL (i, name, rawmemchr,
	119	IFUNC_IMPL_ADD (array, i, rawmemchr,
	120	hwcap & PPC_FEATURE_HAS_VSX,
	121	__rawmemchr_power7)
	122	IFUNC_IMPL_ADD (array, i, rawmemchr, 1,
	123	__rawmemchr_ppc))
	124
b5beafbc AZ	125	return i;
b5beafbc AZ	126	}