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

   1 /* Enumerate available IFUNC implementations of a function.  PowerPC64 version.
   2    Copyright (C) 2013-2017 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_3_00,
 114                               __strncmp_power9)
 115               IFUNC_IMPL_ADD (array, i, strncmp, hwcap2 & PPC_FEATURE2_ARCH_2_07,
 116                               __strncmp_power8)
 117               IFUNC_IMPL_ADD (array, i, strncmp, hwcap & PPC_FEATURE_HAS_VSX,
 118                               __strncmp_power7)
 119               IFUNC_IMPL_ADD (array, i, strncmp, hwcap & PPC_FEATURE_POWER4,
 120                               __strncmp_power4)
 121               IFUNC_IMPL_ADD (array, i, strncmp, 1,
 122                               __strncmp_ppc))
 123
 124   /* Support sysdeps/powerpc/powerpc64/multiarch/strchr.c.  */
 125   IFUNC_IMPL (i, name, strchr,
 126               IFUNC_IMPL_ADD (array, i, strchr,
 127                               hwcap2 & PPC_FEATURE2_ARCH_2_07,
 128                               __strchr_power8)
 129               IFUNC_IMPL_ADD (array, i, strchr,
 130                               hwcap & PPC_FEATURE_HAS_VSX,
 131                               __strchr_power7)
 132               IFUNC_IMPL_ADD (array, i, strchr, 1,
 133                               __strchr_ppc))
 134
 135   /* Support sysdeps/powerpc/powerpc64/multiarch/strchrnul.c.  */
 136   IFUNC_IMPL (i, name, strchrnul,
 137               IFUNC_IMPL_ADD (array, i, strchrnul,
 138                               hwcap2 & PPC_FEATURE2_ARCH_2_07,
 139                               __strchrnul_power8)
 140               IFUNC_IMPL_ADD (array, i, strchrnul,
 141                               hwcap & PPC_FEATURE_HAS_VSX,
 142                               __strchrnul_power7)
 143               IFUNC_IMPL_ADD (array, i, strchrnul, 1,
 144                               __strchrnul_ppc))
 145 #endif
 146
 147   /* Support sysdeps/powerpc/powerpc64/multiarch/memcmp.c.  */
 148   IFUNC_IMPL (i, name, memcmp,
 149               IFUNC_IMPL_ADD (array, i, memcmp, hwcap & PPC_FEATURE_HAS_VSX,
 150                               __memcmp_power7)
 151               IFUNC_IMPL_ADD (array, i, memcmp, hwcap & PPC_FEATURE_POWER4,
 152                               __memcmp_power4)
 153               IFUNC_IMPL_ADD (array, i, memcmp, 1, __memcmp_ppc))
 154
 155   /* Support sysdeps/powerpc/powerpc64/multiarch/bzero.c.  */
 156   IFUNC_IMPL (i, name, bzero,
 157               IFUNC_IMPL_ADD (array, i, bzero, hwcap2 & PPC_FEATURE2_ARCH_2_07,
 158                               __bzero_power8)
 159               IFUNC_IMPL_ADD (array, i, bzero, hwcap & PPC_FEATURE_HAS_VSX,
 160                               __bzero_power7)
 161               IFUNC_IMPL_ADD (array, i, bzero, hwcap & PPC_FEATURE_ARCH_2_05,
 162                               __bzero_power6)
 163               IFUNC_IMPL_ADD (array, i, bzero, hwcap & PPC_FEATURE_POWER4,
 164                               __bzero_power4)
 165               IFUNC_IMPL_ADD (array, i, bzero, 1, __bzero_ppc))
 166
 167   /* Support sysdeps/powerpc/powerpc64/multiarch/bcopy.c.  */
 168   IFUNC_IMPL (i, name, bcopy,
 169               IFUNC_IMPL_ADD (array, i, bcopy, hwcap & PPC_FEATURE_HAS_VSX,
 170                               __bcopy_power7)
 171               IFUNC_IMPL_ADD (array, i, bcopy, 1, __bcopy_ppc))
 172
 173   /* Support sysdeps/powerpc/powerpc64/multiarch/mempcpy.c.  */
 174   IFUNC_IMPL (i, name, mempcpy,
 175               IFUNC_IMPL_ADD (array, i, mempcpy,
 176                               hwcap & PPC_FEATURE_HAS_VSX,
 177                               __mempcpy_power7)
 178               IFUNC_IMPL_ADD (array, i, mempcpy, 1,
 179                               __mempcpy_ppc))
 180
 181   /* Support sysdeps/powerpc/powerpc64/multiarch/memchr.c.  */
 182   IFUNC_IMPL (i, name, memchr,
 183               IFUNC_IMPL_ADD (array, i, memchr,
 184                               hwcap & PPC_FEATURE_HAS_VSX,
 185                               __memchr_power7)
 186               IFUNC_IMPL_ADD (array, i, memchr, 1,
 187                               __memchr_ppc))
 188
 189   /* Support sysdeps/powerpc/powerpc64/multiarch/memrchr.c.  */
 190   IFUNC_IMPL (i, name, memrchr,
 191               IFUNC_IMPL_ADD (array, i, memrchr,
 192                               hwcap & PPC_FEATURE_HAS_VSX,
 193                               __memrchr_power7)
 194               IFUNC_IMPL_ADD (array, i, memrchr, 1,
 195                               __memrchr_ppc))
 196
 197   /* Support sysdeps/powerpc/powerpc64/multiarch/rawmemchr.c.  */
 198   IFUNC_IMPL (i, name, rawmemchr,
 199               IFUNC_IMPL_ADD (array, i, rawmemchr,
 200                               hwcap & PPC_FEATURE_HAS_VSX,
 201                               __rawmemchr_power7)
 202               IFUNC_IMPL_ADD (array, i, rawmemchr, 1,
 203                               __rawmemchr_ppc))
 204
 205   /* Support sysdeps/powerpc/powerpc64/multiarch/strnlen.c.  */
 206   IFUNC_IMPL (i, name, strnlen,
 207               IFUNC_IMPL_ADD (array, i, strnlen,
 208                               hwcap2 & PPC_FEATURE2_ARCH_2_07,
 209                               __strnlen_power8)
 210               IFUNC_IMPL_ADD (array, i, strnlen, hwcap & PPC_FEATURE_HAS_VSX,
 211                               __strnlen_power7)
 212               IFUNC_IMPL_ADD (array, i, strnlen, 1,
 213                               __strnlen_ppc))
 214
 215   /* Support sysdeps/powerpc/powerpc64/multiarch/strcasecmp.c.  */
 216   IFUNC_IMPL (i, name, strcasecmp,
 217               IFUNC_IMPL_ADD (array, i, strcasecmp,
 218                               hwcap2 & PPC_FEATURE2_ARCH_2_07,
 219                               __strcasecmp_power8)
 220               IFUNC_IMPL_ADD (array, i, strcasecmp,
 221                               hwcap & PPC_FEATURE_HAS_VSX,
 222                               __strcasecmp_power7)
 223               IFUNC_IMPL_ADD (array, i, strcasecmp, 1, __strcasecmp_ppc))
 224
 225   /* Support sysdeps/powerpc/powerpc64/multiarch/strcasecmp_l.c.  */
 226   IFUNC_IMPL (i, name, strcasecmp_l,
 227               IFUNC_IMPL_ADD (array, i, strcasecmp_l,
 228                               hwcap & PPC_FEATURE_HAS_VSX,
 229                               __strcasecmp_l_power7)
 230               IFUNC_IMPL_ADD (array, i, strcasecmp_l, 1,
 231                               __strcasecmp_l_ppc))
 232
 233   /* Support sysdeps/powerpc/powerpc64/multiarch/strncase.c.  */
 234   IFUNC_IMPL (i, name, strncasecmp,
 235               IFUNC_IMPL_ADD (array, i, strncasecmp,
 236                               hwcap2 & PPC_FEATURE2_ARCH_2_07,
 237                               __strncasecmp_power8)
 238               IFUNC_IMPL_ADD (array, i, strncasecmp,
 239                               hwcap & PPC_FEATURE_HAS_VSX,
 240                               __strncasecmp_power7)
 241               IFUNC_IMPL_ADD (array, i, strncasecmp, 1, __strncasecmp_ppc))
 242
 243   /* Support sysdeps/powerpc/powerpc64/multiarch/strncase_l.c.  */
 244   IFUNC_IMPL (i, name, strncasecmp_l,
 245               IFUNC_IMPL_ADD (array, i, strncasecmp_l,
 246                               hwcap & PPC_FEATURE_HAS_VSX,
 247                               __strncasecmp_l_power7)
 248               IFUNC_IMPL_ADD (array, i, strncasecmp_l, 1,
 249                               __strncasecmp_l_ppc))
 250
 251   /* Support sysdeps/powerpc/powerpc64/multiarch/wcschr.c.  */
 252   IFUNC_IMPL (i, name, wcschr,
 253               IFUNC_IMPL_ADD (array, i, wcschr,
 254                               hwcap & PPC_FEATURE_HAS_VSX,
 255                               __wcschr_power7)
 256               IFUNC_IMPL_ADD (array, i, wcschr,
 257                               hwcap & PPC_FEATURE_ARCH_2_05,
 258                               __wcschr_power6)
 259               IFUNC_IMPL_ADD (array, i, wcschr, 1,
 260                               __wcschr_ppc))
 261
 262   /* Support sysdeps/powerpc/powerpc64/multiarch/wcschr.c.  */
 263   IFUNC_IMPL (i, name, wcsrchr,
 264               IFUNC_IMPL_ADD (array, i, wcsrchr,
 265                               hwcap & PPC_FEATURE_HAS_VSX,
 266                               __wcsrchr_power7)
 267               IFUNC_IMPL_ADD (array, i, wcsrchr,
 268                               hwcap & PPC_FEATURE_ARCH_2_05,
 269                               __wcsrchr_power6)
 270               IFUNC_IMPL_ADD (array, i, wcsrchr, 1,
 271                               __wcsrchr_ppc))
 272
 273   /* Support sysdeps/powerpc/powerpc64/multiarch/wcscpy.c.  */
 274   IFUNC_IMPL (i, name, wcscpy,
 275               IFUNC_IMPL_ADD (array, i, wcscpy,
 276                               hwcap & PPC_FEATURE_HAS_VSX,
 277                               __wcscpy_power7)
 278               IFUNC_IMPL_ADD (array, i, wcscpy,
 279                               hwcap & PPC_FEATURE_ARCH_2_05,
 280                               __wcscpy_power6)
 281               IFUNC_IMPL_ADD (array, i, wcscpy, 1,
 282                               __wcscpy_ppc))
 283
 284   /* Support sysdeps/powerpc/powerpc64/multiarch/strrchr.c.  */
 285   IFUNC_IMPL (i, name, strrchr,
 286               IFUNC_IMPL_ADD (array, i, strrchr,
 287                               hwcap & PPC_FEATURE_HAS_VSX,
 288                               __strrchr_power7)
 289               IFUNC_IMPL_ADD (array, i, strrchr, 1,
 290                               __strrchr_ppc))
 291
 292   /* Support sysdeps/powerpc/powerpc64/multiarch/strncat.c.  */
 293   IFUNC_IMPL (i, name, strncat,
 294               IFUNC_IMPL_ADD (array, i, strncat,
 295                               hwcap & PPC_FEATURE_HAS_VSX,
 296                               __strncat_power7)
 297               IFUNC_IMPL_ADD (array, i, strncat, 1,
 298                               __strncat_ppc))
 299
 300   /* Support sysdeps/powerpc/powerpc64/multiarch/strncpy.c.  */
 301   IFUNC_IMPL (i, name, strncpy,
 302               IFUNC_IMPL_ADD (array, i, strncpy,
 303                               hwcap2 & PPC_FEATURE2_ARCH_2_07,
 304                               __strncpy_power8)
 305               IFUNC_IMPL_ADD (array, i, strncpy,
 306                               hwcap & PPC_FEATURE_HAS_VSX,
 307                               __strncpy_power7)
 308               IFUNC_IMPL_ADD (array, i, strncpy, 1,
 309                              __strncpy_ppc))
 310
 311   /* Support sysdeps/powerpc/powerpc64/multiarch/stpncpy.c.  */
 312   IFUNC_IMPL (i, name, stpncpy,
 313               IFUNC_IMPL_ADD (array, i, stpncpy,
 314                               hwcap2 & PPC_FEATURE2_ARCH_2_07,
 315                               __stpncpy_power8)
 316               IFUNC_IMPL_ADD (array, i, stpncpy,
 317                               hwcap & PPC_FEATURE_HAS_VSX,
 318                               __stpncpy_power7)
 319               IFUNC_IMPL_ADD (array, i, stpncpy, 1,
 320                              __stpncpy_ppc))
 321
 322   /* Support sysdeps/powerpc/powerpc64/multiarch/strcmp.c.  */
 323   IFUNC_IMPL (i, name, strcmp,
 324               IFUNC_IMPL_ADD (array, i, strcmp,
 325                               hwcap2 & PPC_FEATURE2_ARCH_3_00,
 326                               __strcmp_power9)
 327               IFUNC_IMPL_ADD (array, i, strcmp,
 328                               hwcap2 & PPC_FEATURE2_ARCH_2_07,
 329                               __strcmp_power8)
 330               IFUNC_IMPL_ADD (array, i, strcmp,
 331                               hwcap & PPC_FEATURE_HAS_VSX,
 332                               __strcmp_power7)
 333               IFUNC_IMPL_ADD (array, i, strcmp, 1,
 334                              __strcmp_ppc))
 335
 336   /* Support sysdeps/powerpc/powerpc64/multiarch/strcat.c.  */
 337   IFUNC_IMPL (i, name, strcat,
 338               IFUNC_IMPL_ADD (array, i, strcat,
 339                               hwcap2 & PPC_FEATURE2_ARCH_2_07,
 340                               __strcat_power8)
 341               IFUNC_IMPL_ADD (array, i, strcat,
 342                               hwcap & PPC_FEATURE_HAS_VSX,
 343                               __strcat_power7)
 344               IFUNC_IMPL_ADD (array, i, strcat, 1,
 345                              __strcat_ppc))
 346
 347   /* Support sysdeps/powerpc/powerpc64/multiarch/strspn.c.  */
 348   IFUNC_IMPL (i, name, strspn,
 349              IFUNC_IMPL_ADD (array, i, strspn,
 350                              hwcap2 & PPC_FEATURE2_ARCH_2_07,
 351                              __strspn_power8)
 352              IFUNC_IMPL_ADD (array, i, strspn, 1,
 353                              __strspn_ppc))
 354
 355   /* Support sysdeps/powerpc/powerpc64/multiarch/strcspn.c.  */
 356   IFUNC_IMPL (i, name, strcspn,
 357              IFUNC_IMPL_ADD (array, i, strcspn,
 358                              hwcap2 & PPC_FEATURE2_ARCH_2_07,
 359                              __strcspn_power8)
 360              IFUNC_IMPL_ADD (array, i, strcspn, 1,
 361                              __strcspn_ppc))
 362
 363   /* Support sysdeps/powerpc/powerpc64/multiarch/strstr.c.  */
 364   IFUNC_IMPL (i, name, strstr,
 365              IFUNC_IMPL_ADD (array, i, strstr,
 366                              hwcap & PPC_FEATURE_HAS_VSX,
 367                              __strstr_power7)
 368              IFUNC_IMPL_ADD (array, i, strstr, 1,
 369                              __strstr_ppc))
 370
 371
 372   /* Support sysdeps/powerpc/powerpc64/multiarch/strcasestr.c.  */
 373   IFUNC_IMPL (i, name, strcasestr,
 374               IFUNC_IMPL_ADD (array, i, strcasestr,
 375                               hwcap2 & PPC_FEATURE2_ARCH_2_07,
 376                               __strcasestr_power8)
 377              IFUNC_IMPL_ADD (array, i, strcasestr, 1,
 378                              __strcasestr_ppc))
 379
 380   return i;
 381 }