sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c

   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))
  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))
  73
  74   /* Support sysdeps/powerpc/powerpc64/multiarch/strlen.c.  */
  75   IFUNC_IMPL (i, name, strlen,
  76               IFUNC_IMPL_ADD (array, i, strlen, hwcap & PPC_FEATURE_HAS_VSX,
  77                               __strlen_power7)
  78               IFUNC_IMPL_ADD (array, i, strlen, 1,
  79                               __strlen_ppc))
  80
  81   /* Support sysdeps/powerpc/powerpc64/multiarch/strncmp.c.  */
  82   IFUNC_IMPL (i, name, strncmp,
  83               IFUNC_IMPL_ADD (array, i, strncmp, hwcap & PPC_FEATURE_HAS_VSX,
  84                               __strncmp_power7)
  85               IFUNC_IMPL_ADD (array, i, strncmp, hwcap & PPC_FEATURE_POWER4,
  86                               __strncmp_power4)
  87               IFUNC_IMPL_ADD (array, i, strncmp, 1,
  88                               __strncmp_ppc))
  89
  90   /* Support sysdeps/powerpc/powerpc64/multiarch/strchr.c.  */
  91   IFUNC_IMPL (i, name, strchr,
  92               IFUNC_IMPL_ADD (array, i, strchr,
  93                               hwcap & PPC_FEATURE_HAS_VSX,
  94                               __strchr_power7)
  95               IFUNC_IMPL_ADD (array, i, strchr, 1,
  96                               __strchr_ppc))
  97
  98   /* Support sysdeps/powerpc/powerpc64/multiarch/strchrnul.c.  */
  99   IFUNC_IMPL (i, name, strchrnul,
 100               IFUNC_IMPL_ADD (array, i, strchrnul,
 101                               hwcap & PPC_FEATURE_HAS_VSX,
 102                               __strchrnul_power7)
 103               IFUNC_IMPL_ADD (array, i, strchrnul, 1,
 104                               __strchrnul_ppc))
 105 #endif
 106
 107   /* Support sysdeps/powerpc/powerpc64/multiarch/memcmp.c.  */
 108   IFUNC_IMPL (i, name, memcmp,
 109               IFUNC_IMPL_ADD (array, i, memcmp, hwcap & PPC_FEATURE_HAS_VSX,
 110                               __memcmp_power7)
 111               IFUNC_IMPL_ADD (array, i, memcmp, hwcap & PPC_FEATURE_POWER4,
 112                               __memcmp_power4)
 113               IFUNC_IMPL_ADD (array, i, memcmp, 1, __memcmp_ppc))
 114
 115   /* Support sysdeps/powerpc/powerpc64/multiarch/bzero.c.  */
 116   IFUNC_IMPL (i, name, bzero,
 117               IFUNC_IMPL_ADD (array, i, bzero, hwcap & PPC_FEATURE_HAS_VSX,
 118                               __bzero_power7)
 119               IFUNC_IMPL_ADD (array, i, bzero, hwcap & PPC_FEATURE_ARCH_2_05,
 120                               __bzero_power6)
 121               IFUNC_IMPL_ADD (array, i, bzero, hwcap & PPC_FEATURE_POWER4,
 122                               __bzero_power4)
 123               IFUNC_IMPL_ADD (array, i, bzero, 1, __bzero_ppc))
 124
 125   /* Support sysdeps/powerpc/powerpc64/multiarch/mempcpy.c.  */
 126   IFUNC_IMPL (i, name, mempcpy,
 127               IFUNC_IMPL_ADD (array, i, mempcpy,
 128                               hwcap & PPC_FEATURE_HAS_VSX,
 129                               __mempcpy_power7)
 130               IFUNC_IMPL_ADD (array, i, mempcpy, 1,
 131                               __mempcpy_ppc))
 132
 133   /* Support sysdeps/powerpc/powerpc64/multiarch/memchr.c.  */
 134   IFUNC_IMPL (i, name, memchr,
 135               IFUNC_IMPL_ADD (array, i, memchr,
 136                               hwcap & PPC_FEATURE_HAS_VSX,
 137                               __memchr_power7)
 138               IFUNC_IMPL_ADD (array, i, memchr, 1,
 139                               __memchr_ppc))
 140
 141   /* Support sysdeps/powerpc/powerpc64/multiarch/memrchr.c.  */
 142   IFUNC_IMPL (i, name, memrchr,
 143               IFUNC_IMPL_ADD (array, i, memrchr,
 144                               hwcap & PPC_FEATURE_HAS_VSX,
 145                               __memrchr_power7)
 146               IFUNC_IMPL_ADD (array, i, memrchr, 1,
 147                               __memrchr_ppc))
 148
 149   /* Support sysdeps/powerpc/powerpc64/multiarch/rawmemchr.c.  */
 150   IFUNC_IMPL (i, name, rawmemchr,
 151               IFUNC_IMPL_ADD (array, i, rawmemchr,
 152                               hwcap & PPC_FEATURE_HAS_VSX,
 153                               __rawmemchr_power7)
 154               IFUNC_IMPL_ADD (array, i, rawmemchr, 1,
 155                               __rawmemchr_ppc))
 156
 157   /* Support sysdeps/powerpc/powerpc64/multiarch/strnlen.c.  */
 158   IFUNC_IMPL (i, name, strnlen,
 159               IFUNC_IMPL_ADD (array, i, strnlen, hwcap & PPC_FEATURE_HAS_VSX,
 160                               __strnlen_power7)
 161               IFUNC_IMPL_ADD (array, i, strnlen, 1,
 162                               __strnlen_ppc))
 163
 164   /* Support sysdeps/powerpc/powerpc64/multiarch/strcasecmp.c.  */
 165   IFUNC_IMPL (i, name, strcasecmp,
 166               IFUNC_IMPL_ADD (array, i, strcasecmp,
 167                               hwcap & PPC_FEATURE_HAS_VSX,
 168                               __strcasecmp_power7)
 169               IFUNC_IMPL_ADD (array, i, strcasecmp, 1, __strcasecmp_ppc))
 170
 171   /* Support sysdeps/powerpc/powerpc64/multiarch/strcasecmp_l.c.  */
 172   IFUNC_IMPL (i, name, strcasecmp_l,
 173               IFUNC_IMPL_ADD (array, i, strcasecmp_l,
 174                               hwcap & PPC_FEATURE_HAS_VSX,
 175                               __strcasecmp_l_power7)
 176               IFUNC_IMPL_ADD (array, i, strcasecmp_l, 1,
 177                               __strcasecmp_l_ppc))
 178
 179   /* Support sysdeps/powerpc/powerpc64/multiarch/strncase.c.  */
 180   IFUNC_IMPL (i, name, strncasecmp,
 181               IFUNC_IMPL_ADD (array, i, strncasecmp,
 182                               hwcap & PPC_FEATURE_HAS_VSX,
 183                               __strncasecmp_power7)
 184               IFUNC_IMPL_ADD (array, i, strncasecmp, 1, __strncasecmp_ppc))
 185
 186   /* Support sysdeps/powerpc/powerpc64/multiarch/strncase_l.c.  */
 187   IFUNC_IMPL (i, name, strncasecmp_l,
 188               IFUNC_IMPL_ADD (array, i, strncasecmp_l,
 189                               hwcap & PPC_FEATURE_HAS_VSX,
 190                               __strncasecmp_l_power7)
 191               IFUNC_IMPL_ADD (array, i, strncasecmp_l, 1,
 192                               __strncasecmp_l_ppc))
 193
 194   /* Support sysdeps/powerpc/powerpc64/multiarch/wcschr.c.  */
 195   IFUNC_IMPL (i, name, wcschr,
 196               IFUNC_IMPL_ADD (array, i, wcschr,
 197                               hwcap & PPC_FEATURE_HAS_VSX,
 198                               __wcschr_power7)
 199               IFUNC_IMPL_ADD (array, i, wcschr,
 200                               hwcap & PPC_FEATURE_ARCH_2_05,
 201                               __wcschr_power6)
 202               IFUNC_IMPL_ADD (array, i, wcschr, 1,
 203                               __wcschr_ppc))
 204
 205   /* Support sysdeps/powerpc/powerpc64/multiarch/wcschr.c.  */
 206   IFUNC_IMPL (i, name, wcsrchr,
 207               IFUNC_IMPL_ADD (array, i, wcsrchr,
 208                               hwcap & PPC_FEATURE_HAS_VSX,
 209                               __wcsrchr_power7)
 210               IFUNC_IMPL_ADD (array, i, wcsrchr,
 211                               hwcap & PPC_FEATURE_ARCH_2_05,
 212                               __wcsrchr_power6)
 213               IFUNC_IMPL_ADD (array, i, wcsrchr, 1,
 214                               __wcsrchr_ppc))
 215
 216   return i;
 217 }