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

   1 /* Enumerate available IFUNC implementations of a function.  PowerPC64 version.
   2    Copyright (C) 2013-2018 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, hwcap2 & PPC_FEATURE2_ARCH_2_07,
  55                               __memcpy_power8_cached)
  56               IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_HAS_VSX,
  57                               __memcpy_power7)
  58               IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_ARCH_2_06,
  59                               __memcpy_a2)
  60               IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_ARCH_2_05,
  61                               __memcpy_power6)
  62               IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_CELL_BE,
  63                               __memcpy_cell)
  64               IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_POWER4,
  65                               __memcpy_power4)
  66               IFUNC_IMPL_ADD (array, i, memcpy, 1, __memcpy_ppc))
  67
  68   /* Support sysdeps/powerpc/powerpc64/multiarch/memmove.c.  */
  69   IFUNC_IMPL (i, name, memmove,
  70               IFUNC_IMPL_ADD (array, i, memmove, hwcap & PPC_FEATURE_HAS_VSX,
  71                               __memmove_power7)
  72               IFUNC_IMPL_ADD (array, i, memmove, 1, __memmove_ppc))
  73
  74   /* Support sysdeps/powerpc/powerpc64/multiarch/memset.c.  */
  75   IFUNC_IMPL (i, name, memset,
  76               IFUNC_IMPL_ADD (array, i, memset, hwcap2 & PPC_FEATURE2_ARCH_2_07,
  77                               __memset_power8)
  78               IFUNC_IMPL_ADD (array, i, memset, hwcap & PPC_FEATURE_HAS_VSX,
  79                               __memset_power7)
  80               IFUNC_IMPL_ADD (array, i, memset, hwcap & PPC_FEATURE_ARCH_2_05,
  81                               __memset_power6)
  82               IFUNC_IMPL_ADD (array, i, memset, hwcap & PPC_FEATURE_POWER4,
  83                               __memset_power4)
  84               IFUNC_IMPL_ADD (array, i, memset, 1, __memset_ppc))
  85
  86   /* Support sysdeps/powerpc/powerpc64/multiarch/strcpy.c.  */
  87   IFUNC_IMPL (i, name, strcpy,
  88               IFUNC_IMPL_ADD (array, i, strcpy, hwcap2 & PPC_FEATURE2_ARCH_2_07,
  89                               __strcpy_power8)
  90               IFUNC_IMPL_ADD (array, i, strcpy, hwcap & PPC_FEATURE_HAS_VSX,
  91                               __strcpy_power7)
  92               IFUNC_IMPL_ADD (array, i, strcpy, 1,
  93                               __strcpy_ppc))
  94
  95   /* Support sysdeps/powerpc/powerpc64/multiarch/stpcpy.c.  */
  96   IFUNC_IMPL (i, name, stpcpy,
  97               IFUNC_IMPL_ADD (array, i, stpcpy, hwcap2 & PPC_FEATURE2_ARCH_2_07,
  98                               __stpcpy_power8)
  99               IFUNC_IMPL_ADD (array, i, stpcpy, hwcap & PPC_FEATURE_HAS_VSX,
 100                               __stpcpy_power7)
 101               IFUNC_IMPL_ADD (array, i, stpcpy, 1,
 102                               __stpcpy_ppc))
 103
 104   /* Support sysdeps/powerpc/powerpc64/multiarch/strlen.c.  */
 105   IFUNC_IMPL (i, name, strlen,
 106               IFUNC_IMPL_ADD (array, i, strlen, hwcap2 & PPC_FEATURE2_ARCH_2_07,
 107                               __strlen_power8)
 108               IFUNC_IMPL_ADD (array, i, strlen, hwcap & PPC_FEATURE_HAS_VSX,
 109                               __strlen_power7)
 110               IFUNC_IMPL_ADD (array, i, strlen, 1,
 111                               __strlen_ppc))
 112
 113   /* Support sysdeps/powerpc/powerpc64/multiarch/strncmp.c.  */
 114   IFUNC_IMPL (i, name, strncmp,
 115 #ifdef __LITTLE_ENDIAN__
 116               IFUNC_IMPL_ADD (array, i, strncmp, hwcap2 & PPC_FEATURE2_ARCH_3_00,
 117                               __strncmp_power9)
 118 #endif
 119               IFUNC_IMPL_ADD (array, i, strncmp, hwcap2 & PPC_FEATURE2_ARCH_2_07,
 120                               __strncmp_power8)
 121               IFUNC_IMPL_ADD (array, i, strncmp, hwcap & PPC_FEATURE_HAS_VSX,
 122                               __strncmp_power7)
 123               IFUNC_IMPL_ADD (array, i, strncmp, hwcap & PPC_FEATURE_POWER4,
 124                               __strncmp_power4)
 125               IFUNC_IMPL_ADD (array, i, strncmp, 1,
 126                               __strncmp_ppc))
 127
 128   /* Support sysdeps/powerpc/powerpc64/multiarch/strchr.c.  */
 129   IFUNC_IMPL (i, name, strchr,
 130               IFUNC_IMPL_ADD (array, i, strchr,
 131                               hwcap2 & PPC_FEATURE2_ARCH_2_07,
 132                               __strchr_power8)
 133               IFUNC_IMPL_ADD (array, i, strchr,
 134                               hwcap & PPC_FEATURE_HAS_VSX,
 135                               __strchr_power7)
 136               IFUNC_IMPL_ADD (array, i, strchr, 1,
 137                               __strchr_ppc))
 138
 139   /* Support sysdeps/powerpc/powerpc64/multiarch/strchrnul.c.  */
 140   IFUNC_IMPL (i, name, strchrnul,
 141               IFUNC_IMPL_ADD (array, i, strchrnul,
 142                               hwcap2 & PPC_FEATURE2_ARCH_2_07,
 143                               __strchrnul_power8)
 144               IFUNC_IMPL_ADD (array, i, strchrnul,
 145                               hwcap & PPC_FEATURE_HAS_VSX,
 146                               __strchrnul_power7)
 147               IFUNC_IMPL_ADD (array, i, strchrnul, 1,
 148                               __strchrnul_ppc))
 149 #endif
 150
 151   /* Support sysdeps/powerpc/powerpc64/multiarch/memcmp.c.  */
 152   IFUNC_IMPL (i, name, memcmp,
 153               IFUNC_IMPL_ADD (array, i, memcmp, hwcap2 & PPC_FEATURE2_ARCH_2_07,
 154                               __memcmp_power8)
 155               IFUNC_IMPL_ADD (array, i, memcmp, hwcap & PPC_FEATURE_HAS_VSX,
 156                               __memcmp_power7)
 157               IFUNC_IMPL_ADD (array, i, memcmp, hwcap & PPC_FEATURE_POWER4,
 158                               __memcmp_power4)
 159               IFUNC_IMPL_ADD (array, i, memcmp, 1, __memcmp_ppc))
 160
 161   /* Support sysdeps/powerpc/powerpc64/multiarch/bzero.c.  */
 162   IFUNC_IMPL (i, name, bzero,
 163               IFUNC_IMPL_ADD (array, i, bzero, hwcap2 & PPC_FEATURE2_ARCH_2_07,
 164                               __bzero_power8)
 165               IFUNC_IMPL_ADD (array, i, bzero, hwcap & PPC_FEATURE_HAS_VSX,
 166                               __bzero_power7)
 167               IFUNC_IMPL_ADD (array, i, bzero, hwcap & PPC_FEATURE_ARCH_2_05,
 168                               __bzero_power6)
 169               IFUNC_IMPL_ADD (array, i, bzero, hwcap & PPC_FEATURE_POWER4,
 170                               __bzero_power4)
 171               IFUNC_IMPL_ADD (array, i, bzero, 1, __bzero_ppc))
 172
 173   /* Support sysdeps/powerpc/powerpc64/multiarch/bcopy.c.  */
 174   IFUNC_IMPL (i, name, bcopy,
 175               IFUNC_IMPL_ADD (array, i, bcopy, hwcap & PPC_FEATURE_HAS_VSX,
 176                               __bcopy_power7)
 177               IFUNC_IMPL_ADD (array, i, bcopy, 1, __bcopy_ppc))
 178
 179   /* Support sysdeps/powerpc/powerpc64/multiarch/mempcpy.c.  */
 180   IFUNC_IMPL (i, name, mempcpy,
 181               IFUNC_IMPL_ADD (array, i, mempcpy,
 182                               hwcap & PPC_FEATURE_HAS_VSX,
 183                               __mempcpy_power7)
 184               IFUNC_IMPL_ADD (array, i, mempcpy, 1,
 185                               __mempcpy_ppc))
 186
 187   /* Support sysdeps/powerpc/powerpc64/multiarch/memchr.c.  */
 188   IFUNC_IMPL (i, name, memchr,
 189               IFUNC_IMPL_ADD (array, i, memchr,
 190                               hwcap2 & PPC_FEATURE2_ARCH_2_07,
 191                               __memchr_power8)
 192               IFUNC_IMPL_ADD (array, i, memchr,
 193                               hwcap & PPC_FEATURE_HAS_VSX,
 194                               __memchr_power7)
 195               IFUNC_IMPL_ADD (array, i, memchr, 1,
 196                               __memchr_ppc))
 197
 198   /* Support sysdeps/powerpc/powerpc64/multiarch/memrchr.c.  */
 199   IFUNC_IMPL (i, name, memrchr,
 200               IFUNC_IMPL_ADD (array, i, memrchr,
 201                               hwcap2 & PPC_FEATURE2_ARCH_2_07,
 202                               __memrchr_power8)
 203               IFUNC_IMPL_ADD (array, i, memrchr,
 204                               hwcap & PPC_FEATURE_HAS_VSX,
 205                               __memrchr_power7)
 206               IFUNC_IMPL_ADD (array, i, memrchr, 1,
 207                               __memrchr_ppc))
 208
 209   /* Support sysdeps/powerpc/powerpc64/multiarch/rawmemchr.c.  */
 210   IFUNC_IMPL (i, name, rawmemchr,
 211               IFUNC_IMPL_ADD (array, i, rawmemchr,
 212                               hwcap & PPC_FEATURE_HAS_VSX,
 213                               __rawmemchr_power7)
 214               IFUNC_IMPL_ADD (array, i, rawmemchr, 1,
 215                               __rawmemchr_ppc))
 216
 217   /* Support sysdeps/powerpc/powerpc64/multiarch/strnlen.c.  */
 218   IFUNC_IMPL (i, name, strnlen,
 219               IFUNC_IMPL_ADD (array, i, strnlen,
 220                               hwcap2 & PPC_FEATURE2_ARCH_2_07,
 221                               __strnlen_power8)
 222               IFUNC_IMPL_ADD (array, i, strnlen, hwcap & PPC_FEATURE_HAS_VSX,
 223                               __strnlen_power7)
 224               IFUNC_IMPL_ADD (array, i, strnlen, 1,
 225                               __strnlen_ppc))
 226
 227   /* Support sysdeps/powerpc/powerpc64/multiarch/strcasecmp.c.  */
 228   IFUNC_IMPL (i, name, strcasecmp,
 229               IFUNC_IMPL_ADD (array, i, strcasecmp,
 230                               hwcap2 & PPC_FEATURE2_ARCH_2_07,
 231                               __strcasecmp_power8)
 232               IFUNC_IMPL_ADD (array, i, strcasecmp,
 233                               hwcap & PPC_FEATURE_HAS_VSX,
 234                               __strcasecmp_power7)
 235               IFUNC_IMPL_ADD (array, i, strcasecmp, 1, __strcasecmp_ppc))
 236
 237   /* Support sysdeps/powerpc/powerpc64/multiarch/strcasecmp_l.c.  */
 238   IFUNC_IMPL (i, name, strcasecmp_l,
 239               IFUNC_IMPL_ADD (array, i, strcasecmp_l,
 240                               hwcap & PPC_FEATURE_HAS_VSX,
 241                               __strcasecmp_l_power7)
 242               IFUNC_IMPL_ADD (array, i, strcasecmp_l, 1,
 243                               __strcasecmp_l_ppc))
 244
 245   /* Support sysdeps/powerpc/powerpc64/multiarch/strncase.c.  */
 246   IFUNC_IMPL (i, name, strncasecmp,
 247               IFUNC_IMPL_ADD (array, i, strncasecmp,
 248                               hwcap2 & PPC_FEATURE2_ARCH_2_07,
 249                               __strncasecmp_power8)
 250               IFUNC_IMPL_ADD (array, i, strncasecmp,
 251                               hwcap & PPC_FEATURE_HAS_VSX,
 252                               __strncasecmp_power7)
 253               IFUNC_IMPL_ADD (array, i, strncasecmp, 1, __strncasecmp_ppc))
 254
 255   /* Support sysdeps/powerpc/powerpc64/multiarch/strncase_l.c.  */
 256   IFUNC_IMPL (i, name, strncasecmp_l,
 257               IFUNC_IMPL_ADD (array, i, strncasecmp_l,
 258                               hwcap & PPC_FEATURE_HAS_VSX,
 259                               __strncasecmp_l_power7)
 260               IFUNC_IMPL_ADD (array, i, strncasecmp_l, 1,
 261                               __strncasecmp_l_ppc))
 262
 263   /* Support sysdeps/powerpc/powerpc64/multiarch/wcschr.c.  */
 264   IFUNC_IMPL (i, name, wcschr,
 265               IFUNC_IMPL_ADD (array, i, wcschr,
 266                               hwcap & PPC_FEATURE_HAS_VSX,
 267                               __wcschr_power7)
 268               IFUNC_IMPL_ADD (array, i, wcschr,
 269                               hwcap & PPC_FEATURE_ARCH_2_05,
 270                               __wcschr_power6)
 271               IFUNC_IMPL_ADD (array, i, wcschr, 1,
 272                               __wcschr_ppc))
 273
 274   /* Support sysdeps/powerpc/powerpc64/multiarch/wcschr.c.  */
 275   IFUNC_IMPL (i, name, wcsrchr,
 276               IFUNC_IMPL_ADD (array, i, wcsrchr,
 277                               hwcap & PPC_FEATURE_HAS_VSX,
 278                               __wcsrchr_power7)
 279               IFUNC_IMPL_ADD (array, i, wcsrchr,
 280                               hwcap & PPC_FEATURE_ARCH_2_05,
 281                               __wcsrchr_power6)
 282               IFUNC_IMPL_ADD (array, i, wcsrchr, 1,
 283                               __wcsrchr_ppc))
 284
 285   /* Support sysdeps/powerpc/powerpc64/multiarch/wcscpy.c.  */
 286   IFUNC_IMPL (i, name, wcscpy,
 287               IFUNC_IMPL_ADD (array, i, wcscpy,
 288                               hwcap & PPC_FEATURE_HAS_VSX,
 289                               __wcscpy_power7)
 290               IFUNC_IMPL_ADD (array, i, wcscpy,
 291                               hwcap & PPC_FEATURE_ARCH_2_05,
 292                               __wcscpy_power6)
 293               IFUNC_IMPL_ADD (array, i, wcscpy, 1,
 294                               __wcscpy_ppc))
 295
 296   /* Support sysdeps/powerpc/powerpc64/multiarch/strrchr.c.  */
 297   IFUNC_IMPL (i, name, strrchr,
 298               IFUNC_IMPL_ADD (array, i, strrchr,
 299                               hwcap2 & PPC_FEATURE2_ARCH_2_07,
 300                               __strrchr_power8)
 301               IFUNC_IMPL_ADD (array, i, strrchr,
 302                               hwcap & PPC_FEATURE_HAS_VSX,
 303                               __strrchr_power7)
 304               IFUNC_IMPL_ADD (array, i, strrchr, 1,
 305                               __strrchr_ppc))
 306
 307   /* Support sysdeps/powerpc/powerpc64/multiarch/strncat.c.  */
 308   IFUNC_IMPL (i, name, strncat,
 309               IFUNC_IMPL_ADD (array, i, strncat,
 310                               hwcap2 & PPC_FEATURE2_ARCH_2_07,
 311                               __strncat_power8)
 312               IFUNC_IMPL_ADD (array, i, strncat,
 313                               hwcap & PPC_FEATURE_HAS_VSX,
 314                               __strncat_power7)
 315               IFUNC_IMPL_ADD (array, i, strncat, 1,
 316                               __strncat_ppc))
 317
 318   /* Support sysdeps/powerpc/powerpc64/multiarch/strncpy.c.  */
 319   IFUNC_IMPL (i, name, strncpy,
 320               IFUNC_IMPL_ADD (array, i, strncpy,
 321                               hwcap2 & PPC_FEATURE2_ARCH_2_07,
 322                               __strncpy_power8)
 323               IFUNC_IMPL_ADD (array, i, strncpy,
 324                               hwcap & PPC_FEATURE_HAS_VSX,
 325                               __strncpy_power7)
 326               IFUNC_IMPL_ADD (array, i, strncpy, 1,
 327                              __strncpy_ppc))
 328
 329   /* Support sysdeps/powerpc/powerpc64/multiarch/stpncpy.c.  */
 330   IFUNC_IMPL (i, name, stpncpy,
 331               IFUNC_IMPL_ADD (array, i, stpncpy,
 332                               hwcap2 & PPC_FEATURE2_ARCH_2_07,
 333                               __stpncpy_power8)
 334               IFUNC_IMPL_ADD (array, i, stpncpy,
 335                               hwcap & PPC_FEATURE_HAS_VSX,
 336                               __stpncpy_power7)
 337               IFUNC_IMPL_ADD (array, i, stpncpy, 1,
 338                              __stpncpy_ppc))
 339
 340   /* Support sysdeps/powerpc/powerpc64/multiarch/strcmp.c.  */
 341   IFUNC_IMPL (i, name, strcmp,
 342 #ifdef __LITTLE_ENDIAN__
 343               IFUNC_IMPL_ADD (array, i, strcmp,
 344                               hwcap2 & PPC_FEATURE2_ARCH_3_00,
 345                               __strcmp_power9)
 346 #endif
 347               IFUNC_IMPL_ADD (array, i, strcmp,
 348                               hwcap2 & PPC_FEATURE2_ARCH_2_07,
 349                               __strcmp_power8)
 350               IFUNC_IMPL_ADD (array, i, strcmp,
 351                               hwcap & PPC_FEATURE_HAS_VSX,
 352                               __strcmp_power7)
 353               IFUNC_IMPL_ADD (array, i, strcmp, 1,
 354                              __strcmp_ppc))
 355
 356   /* Support sysdeps/powerpc/powerpc64/multiarch/strcat.c.  */
 357   IFUNC_IMPL (i, name, strcat,
 358               IFUNC_IMPL_ADD (array, i, strcat,
 359                               hwcap2 & PPC_FEATURE2_ARCH_2_07,
 360                               __strcat_power8)
 361               IFUNC_IMPL_ADD (array, i, strcat,
 362                               hwcap & PPC_FEATURE_HAS_VSX,
 363                               __strcat_power7)
 364               IFUNC_IMPL_ADD (array, i, strcat, 1,
 365                              __strcat_ppc))
 366
 367   /* Support sysdeps/powerpc/powerpc64/multiarch/strspn.c.  */
 368   IFUNC_IMPL (i, name, strspn,
 369              IFUNC_IMPL_ADD (array, i, strspn,
 370                              hwcap2 & PPC_FEATURE2_ARCH_2_07,
 371                              __strspn_power8)
 372              IFUNC_IMPL_ADD (array, i, strspn, 1,
 373                              __strspn_ppc))
 374
 375   /* Support sysdeps/powerpc/powerpc64/multiarch/strcspn.c.  */
 376   IFUNC_IMPL (i, name, strcspn,
 377              IFUNC_IMPL_ADD (array, i, strcspn,
 378                              hwcap2 & PPC_FEATURE2_ARCH_2_07,
 379                              __strcspn_power8)
 380              IFUNC_IMPL_ADD (array, i, strcspn, 1,
 381                              __strcspn_ppc))
 382
 383   /* Support sysdeps/powerpc/powerpc64/multiarch/strstr.c.  */
 384   IFUNC_IMPL (i, name, strstr,
 385              IFUNC_IMPL_ADD (array, i, strstr,
 386                              hwcap & PPC_FEATURE_HAS_VSX,
 387                              __strstr_power7)
 388              IFUNC_IMPL_ADD (array, i, strstr, 1,
 389                              __strstr_ppc))
 390
 391
 392   /* Support sysdeps/powerpc/powerpc64/multiarch/strcasestr.c.  */
 393   IFUNC_IMPL (i, name, strcasestr,
 394               IFUNC_IMPL_ADD (array, i, strcasestr,
 395                               hwcap2 & PPC_FEATURE2_ARCH_2_07,
 396                               __strcasestr_power8)
 397              IFUNC_IMPL_ADD (array, i, strcasestr, 1,
 398                              __strcasestr_ppc))
 399
 400   return i;
 401 }