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

   1 /* Enumerate available IFUNC implementations of a function.  PowerPC64 version.
   2    Copyright (C) 2013-2016 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, hwcap2 & PPC_FEATURE2_ARCH_2_07,
 105                               __strlen_power8)
 106               IFUNC_IMPL_ADD (array, i, strlen, hwcap & PPC_FEATURE_HAS_VSX,
 107                               __strlen_power7)
 108               IFUNC_IMPL_ADD (array, i, strlen, 1,
 109                               __strlen_ppc))
 110
 111   /* Support sysdeps/powerpc/powerpc64/multiarch/strncmp.c.  */
 112   IFUNC_IMPL (i, name, strncmp,
 113               IFUNC_IMPL_ADD (array, i, strncmp, hwcap2 & PPC_FEATURE2_ARCH_2_07,
 114                               __strncmp_power8)
 115               IFUNC_IMPL_ADD (array, i, strncmp, hwcap & PPC_FEATURE_HAS_VSX,
 116                               __strncmp_power7)
 117               IFUNC_IMPL_ADD (array, i, strncmp, hwcap & PPC_FEATURE_POWER4,
 118                               __strncmp_power4)
 119               IFUNC_IMPL_ADD (array, i, strncmp, 1,
 120                               __strncmp_ppc))
 121
 122   /* Support sysdeps/powerpc/powerpc64/multiarch/strchr.c.  */
 123   IFUNC_IMPL (i, name, strchr,
 124               IFUNC_IMPL_ADD (array, i, strchr,
 125                               hwcap & PPC_FEATURE_HAS_VSX,
 126                               __strchr_power7)
 127               IFUNC_IMPL_ADD (array, i, strchr, 1,
 128                               __strchr_ppc))
 129
 130   /* Support sysdeps/powerpc/powerpc64/multiarch/strchrnul.c.  */
 131   IFUNC_IMPL (i, name, strchrnul,
 132               IFUNC_IMPL_ADD (array, i, strchrnul,
 133                               hwcap & PPC_FEATURE_HAS_VSX,
 134                               __strchrnul_power7)
 135               IFUNC_IMPL_ADD (array, i, strchrnul, 1,
 136                               __strchrnul_ppc))
 137 #endif
 138
 139   /* Support sysdeps/powerpc/powerpc64/multiarch/memcmp.c.  */
 140   IFUNC_IMPL (i, name, memcmp,
 141               IFUNC_IMPL_ADD (array, i, memcmp, hwcap & PPC_FEATURE_HAS_VSX,
 142                               __memcmp_power7)
 143               IFUNC_IMPL_ADD (array, i, memcmp, hwcap & PPC_FEATURE_POWER4,
 144                               __memcmp_power4)
 145               IFUNC_IMPL_ADD (array, i, memcmp, 1, __memcmp_ppc))
 146
 147   /* Support sysdeps/powerpc/powerpc64/multiarch/bzero.c.  */
 148   IFUNC_IMPL (i, name, bzero,
 149               IFUNC_IMPL_ADD (array, i, bzero, hwcap2 & PPC_FEATURE2_ARCH_2_07,
 150                               __bzero_power8)
 151               IFUNC_IMPL_ADD (array, i, bzero, hwcap & PPC_FEATURE_HAS_VSX,
 152                               __bzero_power7)
 153               IFUNC_IMPL_ADD (array, i, bzero, hwcap & PPC_FEATURE_ARCH_2_05,
 154                               __bzero_power6)
 155               IFUNC_IMPL_ADD (array, i, bzero, hwcap & PPC_FEATURE_POWER4,
 156                               __bzero_power4)
 157               IFUNC_IMPL_ADD (array, i, bzero, 1, __bzero_ppc))
 158
 159   /* Support sysdeps/powerpc/powerpc64/multiarch/bcopy.c.  */
 160   IFUNC_IMPL (i, name, bcopy,
 161               IFUNC_IMPL_ADD (array, i, bcopy, hwcap & PPC_FEATURE_HAS_VSX,
 162                               __bcopy_power7)
 163               IFUNC_IMPL_ADD (array, i, bcopy, 1, __bcopy_ppc))
 164
 165   /* Support sysdeps/powerpc/powerpc64/multiarch/mempcpy.c.  */
 166   IFUNC_IMPL (i, name, mempcpy,
 167               IFUNC_IMPL_ADD (array, i, mempcpy,
 168                               hwcap & PPC_FEATURE_HAS_VSX,
 169                               __mempcpy_power7)
 170               IFUNC_IMPL_ADD (array, i, mempcpy, 1,
 171                               __mempcpy_ppc))
 172
 173   /* Support sysdeps/powerpc/powerpc64/multiarch/memchr.c.  */
 174   IFUNC_IMPL (i, name, memchr,
 175               IFUNC_IMPL_ADD (array, i, memchr,
 176                               hwcap & PPC_FEATURE_HAS_VSX,
 177                               __memchr_power7)
 178               IFUNC_IMPL_ADD (array, i, memchr, 1,
 179                               __memchr_ppc))
 180
 181   /* Support sysdeps/powerpc/powerpc64/multiarch/memrchr.c.  */
 182   IFUNC_IMPL (i, name, memrchr,
 183               IFUNC_IMPL_ADD (array, i, memrchr,
 184                               hwcap & PPC_FEATURE_HAS_VSX,
 185                               __memrchr_power7)
 186               IFUNC_IMPL_ADD (array, i, memrchr, 1,
 187                               __memrchr_ppc))
 188
 189   /* Support sysdeps/powerpc/powerpc64/multiarch/rawmemchr.c.  */
 190   IFUNC_IMPL (i, name, rawmemchr,
 191               IFUNC_IMPL_ADD (array, i, rawmemchr,
 192                               hwcap & PPC_FEATURE_HAS_VSX,
 193                               __rawmemchr_power7)
 194               IFUNC_IMPL_ADD (array, i, rawmemchr, 1,
 195                               __rawmemchr_ppc))
 196
 197   /* Support sysdeps/powerpc/powerpc64/multiarch/strnlen.c.  */
 198   IFUNC_IMPL (i, name, strnlen,
 199               IFUNC_IMPL_ADD (array, i, strnlen, hwcap & PPC_FEATURE_HAS_VSX,
 200                               __strnlen_power7)
 201               IFUNC_IMPL_ADD (array, i, strnlen, 1,
 202                               __strnlen_ppc))
 203
 204   /* Support sysdeps/powerpc/powerpc64/multiarch/strcasecmp.c.  */
 205   IFUNC_IMPL (i, name, strcasecmp,
 206               IFUNC_IMPL_ADD (array, i, strcasecmp,
 207                               hwcap & PPC_FEATURE_HAS_VSX,
 208                               __strcasecmp_power7)
 209               IFUNC_IMPL_ADD (array, i, strcasecmp, 1, __strcasecmp_ppc))
 210
 211   /* Support sysdeps/powerpc/powerpc64/multiarch/strcasecmp_l.c.  */
 212   IFUNC_IMPL (i, name, strcasecmp_l,
 213               IFUNC_IMPL_ADD (array, i, strcasecmp_l,
 214                               hwcap & PPC_FEATURE_HAS_VSX,
 215                               __strcasecmp_l_power7)
 216               IFUNC_IMPL_ADD (array, i, strcasecmp_l, 1,
 217                               __strcasecmp_l_ppc))
 218
 219   /* Support sysdeps/powerpc/powerpc64/multiarch/strncase.c.  */
 220   IFUNC_IMPL (i, name, strncasecmp,
 221               IFUNC_IMPL_ADD (array, i, strncasecmp,
 222                               hwcap & PPC_FEATURE_HAS_VSX,
 223                               __strncasecmp_power7)
 224               IFUNC_IMPL_ADD (array, i, strncasecmp, 1, __strncasecmp_ppc))
 225
 226   /* Support sysdeps/powerpc/powerpc64/multiarch/strncase_l.c.  */
 227   IFUNC_IMPL (i, name, strncasecmp_l,
 228               IFUNC_IMPL_ADD (array, i, strncasecmp_l,
 229                               hwcap & PPC_FEATURE_HAS_VSX,
 230                               __strncasecmp_l_power7)
 231               IFUNC_IMPL_ADD (array, i, strncasecmp_l, 1,
 232                               __strncasecmp_l_ppc))
 233
 234   /* Support sysdeps/powerpc/powerpc64/multiarch/wcschr.c.  */
 235   IFUNC_IMPL (i, name, wcschr,
 236               IFUNC_IMPL_ADD (array, i, wcschr,
 237                               hwcap & PPC_FEATURE_HAS_VSX,
 238                               __wcschr_power7)
 239               IFUNC_IMPL_ADD (array, i, wcschr,
 240                               hwcap & PPC_FEATURE_ARCH_2_05,
 241                               __wcschr_power6)
 242               IFUNC_IMPL_ADD (array, i, wcschr, 1,
 243                               __wcschr_ppc))
 244
 245   /* Support sysdeps/powerpc/powerpc64/multiarch/wcschr.c.  */
 246   IFUNC_IMPL (i, name, wcsrchr,
 247               IFUNC_IMPL_ADD (array, i, wcsrchr,
 248                               hwcap & PPC_FEATURE_HAS_VSX,
 249                               __wcsrchr_power7)
 250               IFUNC_IMPL_ADD (array, i, wcsrchr,
 251                               hwcap & PPC_FEATURE_ARCH_2_05,
 252                               __wcsrchr_power6)
 253               IFUNC_IMPL_ADD (array, i, wcsrchr, 1,
 254                               __wcsrchr_ppc))
 255
 256   /* Support sysdeps/powerpc/powerpc64/multiarch/wcscpy.c.  */
 257   IFUNC_IMPL (i, name, wcscpy,
 258               IFUNC_IMPL_ADD (array, i, wcscpy,
 259                               hwcap & PPC_FEATURE_HAS_VSX,
 260                               __wcscpy_power7)
 261               IFUNC_IMPL_ADD (array, i, wcscpy,
 262                               hwcap & PPC_FEATURE_ARCH_2_05,
 263                               __wcscpy_power6)
 264               IFUNC_IMPL_ADD (array, i, wcscpy, 1,
 265                               __wcscpy_ppc))
 266
 267   /* Support sysdeps/powerpc/powerpc64/multiarch/strrchr.c.  */
 268   IFUNC_IMPL (i, name, strrchr,
 269               IFUNC_IMPL_ADD (array, i, strrchr,
 270                               hwcap & PPC_FEATURE_HAS_VSX,
 271                               __strrchr_power7)
 272               IFUNC_IMPL_ADD (array, i, strrchr, 1,
 273                               __strrchr_ppc))
 274
 275   /* Support sysdeps/powerpc/powerpc64/multiarch/strncat.c.  */
 276   IFUNC_IMPL (i, name, strncat,
 277               IFUNC_IMPL_ADD (array, i, strncat,
 278                               hwcap & PPC_FEATURE_HAS_VSX,
 279                               __strncat_power7)
 280               IFUNC_IMPL_ADD (array, i, strncat, 1,
 281                               __strncat_ppc))
 282
 283   /* Support sysdeps/powerpc/powerpc64/multiarch/strncpy.c.  */
 284   IFUNC_IMPL (i, name, strncpy,
 285               IFUNC_IMPL_ADD (array, i, strncpy,
 286                               hwcap2 & PPC_FEATURE2_ARCH_2_07,
 287                               __strncpy_power8)
 288               IFUNC_IMPL_ADD (array, i, strncpy,
 289                               hwcap & PPC_FEATURE_HAS_VSX,
 290                               __strncpy_power7)
 291               IFUNC_IMPL_ADD (array, i, strncpy, 1,
 292                              __strncpy_ppc))
 293
 294   /* Support sysdeps/powerpc/powerpc64/multiarch/stpncpy.c.  */
 295   IFUNC_IMPL (i, name, stpncpy,
 296               IFUNC_IMPL_ADD (array, i, stpncpy,
 297                               hwcap2 & PPC_FEATURE2_ARCH_2_07,
 298                               __stpncpy_power8)
 299               IFUNC_IMPL_ADD (array, i, stpncpy,
 300                               hwcap & PPC_FEATURE_HAS_VSX,
 301                               __stpncpy_power7)
 302               IFUNC_IMPL_ADD (array, i, stpncpy, 1,
 303                              __stpncpy_ppc))
 304
 305   /* Support sysdeps/powerpc/powerpc64/multiarch/strcmp.c.  */
 306   IFUNC_IMPL (i, name, strcmp,
 307               IFUNC_IMPL_ADD (array, i, strcmp,
 308                               hwcap2 & PPC_FEATURE2_ARCH_2_07,
 309                               __strcmp_power8)
 310               IFUNC_IMPL_ADD (array, i, strcmp,
 311                               hwcap & PPC_FEATURE_HAS_VSX,
 312                               __strcmp_power7)
 313               IFUNC_IMPL_ADD (array, i, strcmp, 1,
 314                              __strcmp_ppc))
 315
 316   /* Support sysdeps/powerpc/powerpc64/multiarch/strcat.c.  */
 317   IFUNC_IMPL (i, name, strcat,
 318               IFUNC_IMPL_ADD (array, i, strcat,
 319                               hwcap2 & PPC_FEATURE2_ARCH_2_07,
 320                               __strcat_power8)
 321               IFUNC_IMPL_ADD (array, i, strcat,
 322                               hwcap & PPC_FEATURE_HAS_VSX,
 323                               __strcat_power7)
 324               IFUNC_IMPL_ADD (array, i, strcat, 1,
 325                              __strcat_ppc))
 326
 327   /* Support sysdeps/powerpc/powerpc64/multiarch/strspn.c.  */
 328   IFUNC_IMPL (i, name, strspn,
 329              IFUNC_IMPL_ADD (array, i, strspn,
 330                              hwcap2 & PPC_FEATURE2_ARCH_2_07,
 331                              __strspn_power8)
 332              IFUNC_IMPL_ADD (array, i, strspn, 1,
 333                              __strspn_ppc))
 334
 335   /* Support sysdeps/powerpc/powerpc64/multiarch/strcspn.c.  */
 336   IFUNC_IMPL (i, name, strcspn,
 337              IFUNC_IMPL_ADD (array, i, strcspn,
 338                              hwcap2 & PPC_FEATURE2_ARCH_2_07,
 339                              __strcspn_power8)
 340              IFUNC_IMPL_ADD (array, i, strcspn, 1,
 341                              __strcspn_ppc))
 342
 343   /* Support sysdeps/powerpc/powerpc64/multiarch/strstr.c.  */
 344   IFUNC_IMPL (i, name, strstr,
 345              IFUNC_IMPL_ADD (array, i, strstr,
 346                              hwcap & PPC_FEATURE_HAS_VSX,
 347                              __strstr_power7)
 348              IFUNC_IMPL_ADD (array, i, strstr, 1,
 349                              __strstr_ppc))
 350
 351
 352   /* Support sysdeps/powerpc/powerpc64/multiarch/strcasestr.c.  */
 353   IFUNC_IMPL (i, name, strcasestr,
 354               IFUNC_IMPL_ADD (array, i, strcasestr,
 355                               hwcap2 & PPC_FEATURE2_ARCH_2_07,
 356                               __strcasestr_power8)
 357              IFUNC_IMPL_ADD (array, i, strcasestr, 1,
 358                              __strcasestr_ppc))
 359
 360   return i;
 361 }