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

   1 /* Enumerate available IFUNC implementations of a function.  PowerPC64 version.
   2    Copyright (C) 2013-2015 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   unsigned long int hwcap2 = GLRO(dl_hwcap2);
  38
  39   /* hwcap contains only the latest supported ISA, the code checks which is
  40      and fills the previous supported ones.  */
  41   if (hwcap & PPC_FEATURE_ARCH_2_06)
  42     hwcap |= PPC_FEATURE_ARCH_2_05 | PPC_FEATURE_POWER5_PLUS |
  43              PPC_FEATURE_POWER5 | PPC_FEATURE_POWER4;
  44   else if (hwcap & PPC_FEATURE_ARCH_2_05)
  45     hwcap |= PPC_FEATURE_POWER5_PLUS | PPC_FEATURE_POWER5 | PPC_FEATURE_POWER4;
  46   else if (hwcap & PPC_FEATURE_POWER5_PLUS)
  47     hwcap |= PPC_FEATURE_POWER5 | PPC_FEATURE_POWER4;
  48   else if (hwcap & PPC_FEATURE_POWER5)
  49     hwcap |= PPC_FEATURE_POWER4;
  50
  51 #ifdef SHARED
  52   /* Support sysdeps/powerpc/powerpc64/multiarch/memcpy.c.  */
  53   IFUNC_IMPL (i, name, memcpy,
  54               IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_HAS_VSX,
  55                               __memcpy_power7)
  56               IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_ARCH_2_06,
  57                               __memcpy_a2)
  58               IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_ARCH_2_05,
  59                               __memcpy_power6)
  60               IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_CELL_BE,
  61                               __memcpy_cell)
  62               IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_POWER4,
  63                               __memcpy_power4)
  64               IFUNC_IMPL_ADD (array, i, memcpy, 1, __memcpy_ppc))
  65
  66   /* Support sysdeps/powerpc/powerpc64/multiarch/memmove.c.  */
  67   IFUNC_IMPL (i, name, memmove,
  68               IFUNC_IMPL_ADD (array, i, memmove, hwcap & PPC_FEATURE_HAS_VSX,
  69                               __memmove_power7)
  70               IFUNC_IMPL_ADD (array, i, memmove, 1, __memmove_ppc))
  71
  72   /* Support sysdeps/powerpc/powerpc64/multiarch/memset.c.  */
  73   IFUNC_IMPL (i, name, memset,
  74               IFUNC_IMPL_ADD (array, i, memset, hwcap2 & PPC_FEATURE2_ARCH_2_07,
  75                               __memset_power8)
  76               IFUNC_IMPL_ADD (array, i, memset, hwcap & PPC_FEATURE_HAS_VSX,
  77                               __memset_power7)
  78               IFUNC_IMPL_ADD (array, i, memset, hwcap & PPC_FEATURE_ARCH_2_05,
  79                               __memset_power6)
  80               IFUNC_IMPL_ADD (array, i, memset, hwcap & PPC_FEATURE_POWER4,
  81                               __memset_power4)
  82               IFUNC_IMPL_ADD (array, i, memset, 1, __memset_ppc))
  83
  84   /* Support sysdeps/powerpc/powerpc64/multiarch/strcpy.c.  */
  85   IFUNC_IMPL (i, name, strcpy,
  86               IFUNC_IMPL_ADD (array, i, strcpy, hwcap2 & PPC_FEATURE2_ARCH_2_07,
  87                               __strcpy_power8)
  88               IFUNC_IMPL_ADD (array, i, strcpy, hwcap & PPC_FEATURE_HAS_VSX,
  89                               __strcpy_power7)
  90               IFUNC_IMPL_ADD (array, i, strcpy, 1,
  91                               __strcpy_ppc))
  92
  93   /* Support sysdeps/powerpc/powerpc64/multiarch/stpcpy.c.  */
  94   IFUNC_IMPL (i, name, stpcpy,
  95               IFUNC_IMPL_ADD (array, i, stpcpy, hwcap2 & PPC_FEATURE2_ARCH_2_07,
  96                               __stpcpy_power8)
  97               IFUNC_IMPL_ADD (array, i, stpcpy, hwcap & PPC_FEATURE_HAS_VSX,
  98                               __stpcpy_power7)
  99               IFUNC_IMPL_ADD (array, i, stpcpy, 1,
 100                               __stpcpy_ppc))
 101
 102   /* Support sysdeps/powerpc/powerpc64/multiarch/strlen.c.  */
 103   IFUNC_IMPL (i, name, strlen,
 104               IFUNC_IMPL_ADD (array, i, strlen, hwcap & PPC_FEATURE_HAS_VSX,
 105                               __strlen_power7)
 106               IFUNC_IMPL_ADD (array, i, strlen, 1,
 107                               __strlen_ppc))
 108
 109   /* Support sysdeps/powerpc/powerpc64/multiarch/strncmp.c.  */
 110   IFUNC_IMPL (i, name, strncmp,
 111               IFUNC_IMPL_ADD (array, i, strncmp, hwcap & PPC_FEATURE_HAS_VSX,
 112                               __strncmp_power7)
 113               IFUNC_IMPL_ADD (array, i, strncmp, hwcap & PPC_FEATURE_POWER4,
 114                               __strncmp_power4)
 115               IFUNC_IMPL_ADD (array, i, strncmp, 1,
 116                               __strncmp_ppc))
 117
 118   /* Support sysdeps/powerpc/powerpc64/multiarch/strchr.c.  */
 119   IFUNC_IMPL (i, name, strchr,
 120               IFUNC_IMPL_ADD (array, i, strchr,
 121                               hwcap & PPC_FEATURE_HAS_VSX,
 122                               __strchr_power7)
 123               IFUNC_IMPL_ADD (array, i, strchr, 1,
 124                               __strchr_ppc))
 125
 126   /* Support sysdeps/powerpc/powerpc64/multiarch/strchrnul.c.  */
 127   IFUNC_IMPL (i, name, strchrnul,
 128               IFUNC_IMPL_ADD (array, i, strchrnul,
 129                               hwcap & PPC_FEATURE_HAS_VSX,
 130                               __strchrnul_power7)
 131               IFUNC_IMPL_ADD (array, i, strchrnul, 1,
 132                               __strchrnul_ppc))
 133 #endif
 134
 135   /* Support sysdeps/powerpc/powerpc64/multiarch/memcmp.c.  */
 136   IFUNC_IMPL (i, name, memcmp,
 137               IFUNC_IMPL_ADD (array, i, memcmp, hwcap & PPC_FEATURE_HAS_VSX,
 138                               __memcmp_power7)
 139               IFUNC_IMPL_ADD (array, i, memcmp, hwcap & PPC_FEATURE_POWER4,
 140                               __memcmp_power4)
 141               IFUNC_IMPL_ADD (array, i, memcmp, 1, __memcmp_ppc))
 142
 143   /* Support sysdeps/powerpc/powerpc64/multiarch/bzero.c.  */
 144   IFUNC_IMPL (i, name, bzero,
 145               IFUNC_IMPL_ADD (array, i, bzero, hwcap2 & PPC_FEATURE2_ARCH_2_07,
 146                               __bzero_power8)
 147               IFUNC_IMPL_ADD (array, i, bzero, hwcap & PPC_FEATURE_HAS_VSX,
 148                               __bzero_power7)
 149               IFUNC_IMPL_ADD (array, i, bzero, hwcap & PPC_FEATURE_ARCH_2_05,
 150                               __bzero_power6)
 151               IFUNC_IMPL_ADD (array, i, bzero, hwcap & PPC_FEATURE_POWER4,
 152                               __bzero_power4)
 153               IFUNC_IMPL_ADD (array, i, bzero, 1, __bzero_ppc))
 154
 155   /* Support sysdeps/powerpc/powerpc64/multiarch/bcopy.c.  */
 156   IFUNC_IMPL (i, name, bcopy,
 157               IFUNC_IMPL_ADD (array, i, bcopy, hwcap & PPC_FEATURE_HAS_VSX,
 158                               __bcopy_power7)
 159               IFUNC_IMPL_ADD (array, i, bcopy, 1, __bcopy_ppc))
 160
 161   /* Support sysdeps/powerpc/powerpc64/multiarch/mempcpy.c.  */
 162   IFUNC_IMPL (i, name, mempcpy,
 163               IFUNC_IMPL_ADD (array, i, mempcpy,
 164                               hwcap & PPC_FEATURE_HAS_VSX,
 165                               __mempcpy_power7)
 166               IFUNC_IMPL_ADD (array, i, mempcpy, 1,
 167                               __mempcpy_ppc))
 168
 169   /* Support sysdeps/powerpc/powerpc64/multiarch/memchr.c.  */
 170   IFUNC_IMPL (i, name, memchr,
 171               IFUNC_IMPL_ADD (array, i, memchr,
 172                               hwcap & PPC_FEATURE_HAS_VSX,
 173                               __memchr_power7)
 174               IFUNC_IMPL_ADD (array, i, memchr, 1,
 175                               __memchr_ppc))
 176
 177   /* Support sysdeps/powerpc/powerpc64/multiarch/memrchr.c.  */
 178   IFUNC_IMPL (i, name, memrchr,
 179               IFUNC_IMPL_ADD (array, i, memrchr,
 180                               hwcap & PPC_FEATURE_HAS_VSX,
 181                               __memrchr_power7)
 182               IFUNC_IMPL_ADD (array, i, memrchr, 1,
 183                               __memrchr_ppc))
 184
 185   /* Support sysdeps/powerpc/powerpc64/multiarch/rawmemchr.c.  */
 186   IFUNC_IMPL (i, name, rawmemchr,
 187               IFUNC_IMPL_ADD (array, i, rawmemchr,
 188                               hwcap & PPC_FEATURE_HAS_VSX,
 189                               __rawmemchr_power7)
 190               IFUNC_IMPL_ADD (array, i, rawmemchr, 1,
 191                               __rawmemchr_ppc))
 192
 193   /* Support sysdeps/powerpc/powerpc64/multiarch/strnlen.c.  */
 194   IFUNC_IMPL (i, name, strnlen,
 195               IFUNC_IMPL_ADD (array, i, strnlen, hwcap & PPC_FEATURE_HAS_VSX,
 196                               __strnlen_power7)
 197               IFUNC_IMPL_ADD (array, i, strnlen, 1,
 198                               __strnlen_ppc))
 199
 200   /* Support sysdeps/powerpc/powerpc64/multiarch/strcasecmp.c.  */
 201   IFUNC_IMPL (i, name, strcasecmp,
 202               IFUNC_IMPL_ADD (array, i, strcasecmp,
 203                               hwcap & PPC_FEATURE_HAS_VSX,
 204                               __strcasecmp_power7)
 205               IFUNC_IMPL_ADD (array, i, strcasecmp, 1, __strcasecmp_ppc))
 206
 207   /* Support sysdeps/powerpc/powerpc64/multiarch/strcasecmp_l.c.  */
 208   IFUNC_IMPL (i, name, strcasecmp_l,
 209               IFUNC_IMPL_ADD (array, i, strcasecmp_l,
 210                               hwcap & PPC_FEATURE_HAS_VSX,
 211                               __strcasecmp_l_power7)
 212               IFUNC_IMPL_ADD (array, i, strcasecmp_l, 1,
 213                               __strcasecmp_l_ppc))
 214
 215   /* Support sysdeps/powerpc/powerpc64/multiarch/strncase.c.  */
 216   IFUNC_IMPL (i, name, strncasecmp,
 217               IFUNC_IMPL_ADD (array, i, strncasecmp,
 218                               hwcap & PPC_FEATURE_HAS_VSX,
 219                               __strncasecmp_power7)
 220               IFUNC_IMPL_ADD (array, i, strncasecmp, 1, __strncasecmp_ppc))
 221
 222   /* Support sysdeps/powerpc/powerpc64/multiarch/strncase_l.c.  */
 223   IFUNC_IMPL (i, name, strncasecmp_l,
 224               IFUNC_IMPL_ADD (array, i, strncasecmp_l,
 225                               hwcap & PPC_FEATURE_HAS_VSX,
 226                               __strncasecmp_l_power7)
 227               IFUNC_IMPL_ADD (array, i, strncasecmp_l, 1,
 228                               __strncasecmp_l_ppc))
 229
 230   /* Support sysdeps/powerpc/powerpc64/multiarch/wcschr.c.  */
 231   IFUNC_IMPL (i, name, wcschr,
 232               IFUNC_IMPL_ADD (array, i, wcschr,
 233                               hwcap & PPC_FEATURE_HAS_VSX,
 234                               __wcschr_power7)
 235               IFUNC_IMPL_ADD (array, i, wcschr,
 236                               hwcap & PPC_FEATURE_ARCH_2_05,
 237                               __wcschr_power6)
 238               IFUNC_IMPL_ADD (array, i, wcschr, 1,
 239                               __wcschr_ppc))
 240
 241   /* Support sysdeps/powerpc/powerpc64/multiarch/wcschr.c.  */
 242   IFUNC_IMPL (i, name, wcsrchr,
 243               IFUNC_IMPL_ADD (array, i, wcsrchr,
 244                               hwcap & PPC_FEATURE_HAS_VSX,
 245                               __wcsrchr_power7)
 246               IFUNC_IMPL_ADD (array, i, wcsrchr,
 247                               hwcap & PPC_FEATURE_ARCH_2_05,
 248                               __wcsrchr_power6)
 249               IFUNC_IMPL_ADD (array, i, wcsrchr, 1,
 250                               __wcsrchr_ppc))
 251
 252   /* Support sysdeps/powerpc/powerpc64/multiarch/wcscpy.c.  */
 253   IFUNC_IMPL (i, name, wcscpy,
 254               IFUNC_IMPL_ADD (array, i, wcscpy,
 255                               hwcap & PPC_FEATURE_HAS_VSX,
 256                               __wcscpy_power7)
 257               IFUNC_IMPL_ADD (array, i, wcscpy,
 258                               hwcap & PPC_FEATURE_ARCH_2_05,
 259                               __wcscpy_power6)
 260               IFUNC_IMPL_ADD (array, i, wcscpy, 1,
 261                               __wcscpy_ppc))
 262
 263   /* Support sysdeps/powerpc/powerpc64/multiarch/strrchr.c.  */
 264   IFUNC_IMPL (i, name, strrchr,
 265               IFUNC_IMPL_ADD (array, i, strrchr,
 266                               hwcap & PPC_FEATURE_HAS_VSX,
 267                               __strrchr_power7)
 268               IFUNC_IMPL_ADD (array, i, strrchr, 1,
 269                               __strrchr_ppc))
 270
 271   /* Support sysdeps/powerpc/powerpc64/multiarch/strncat.c.  */
 272   IFUNC_IMPL (i, name, strncat,
 273               IFUNC_IMPL_ADD (array, i, strncat,
 274                               hwcap & PPC_FEATURE_HAS_VSX,
 275                               __strncat_power7)
 276               IFUNC_IMPL_ADD (array, i, strncat, 1,
 277                               __strncat_ppc))
 278
 279   /* Support sysdeps/powerpc/powerpc64/multiarch/strncpy.c.  */
 280   IFUNC_IMPL (i, name, strncpy,
 281               IFUNC_IMPL_ADD (array, i, strncpy,
 282                               hwcap2 & PPC_FEATURE2_ARCH_2_07,
 283                               __strncpy_power8)
 284               IFUNC_IMPL_ADD (array, i, strncpy,
 285                               hwcap & PPC_FEATURE_HAS_VSX,
 286                               __strncpy_power7)
 287               IFUNC_IMPL_ADD (array, i, strncpy, 1,
 288                              __strncpy_ppc))
 289
 290   /* Support sysdeps/powerpc/powerpc64/multiarch/stpncpy.c.  */
 291   IFUNC_IMPL (i, name, stpncpy,
 292               IFUNC_IMPL_ADD (array, i, stpncpy,
 293                               hwcap2 & PPC_FEATURE2_ARCH_2_07,
 294                               __stpncpy_power8)
 295               IFUNC_IMPL_ADD (array, i, stpncpy,
 296                               hwcap & PPC_FEATURE_HAS_VSX,
 297                               __stpncpy_power7)
 298               IFUNC_IMPL_ADD (array, i, stpncpy, 1,
 299                              __stpncpy_ppc))
 300
 301   /* Support sysdeps/powerpc/powerpc64/multiarch/strcmp.c.  */
 302   IFUNC_IMPL (i, name, strcmp,
 303               IFUNC_IMPL_ADD (array, i, strcmp,
 304                               hwcap2 & PPC_FEATURE2_ARCH_2_07,
 305                               __strcmp_power8)
 306               IFUNC_IMPL_ADD (array, i, strcmp,
 307                               hwcap & PPC_FEATURE_HAS_VSX,
 308                               __strcmp_power7)
 309               IFUNC_IMPL_ADD (array, i, strcmp, 1,
 310                              __strcmp_ppc))
 311
 312   /* Support sysdeps/powerpc/powerpc64/multiarch/strcat.c.  */
 313   IFUNC_IMPL (i, name, strcat,
 314               IFUNC_IMPL_ADD (array, i, strcat,
 315                               hwcap2 & PPC_FEATURE2_ARCH_2_07,
 316                               __strcat_power8)
 317               IFUNC_IMPL_ADD (array, i, strcat,
 318                               hwcap & PPC_FEATURE_HAS_VSX,
 319                               __strcat_power7)
 320               IFUNC_IMPL_ADD (array, i, strcat, 1,
 321                              __strcat_ppc))
 322
 323   return i;
 324 }