sysdeps/x86_64/multiarch/ifunc-impl-list.c

   1 /* Enumerate available IFUNC implementations of a function.  x86-64 version.
   2    Copyright (C) 2012-2014 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 <ifunc-impl-list.h>
  23 #include "init-arch.h"
  24
  25 /* Maximum number of IFUNC implementations.  */
  26 #define MAX_IFUNC       4
  27
  28 /* Fill ARRAY of MAX elements with IFUNC implementations for function
  29    NAME supported on target machine and return the number of valid
  30    entries.  */
  31
  32 size_t
  33 __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
  34                         size_t max)
  35 {
  36   assert (max >= MAX_IFUNC);
  37
  38   size_t i = 0;
  39
  40   /* Support sysdeps/x86_64/multiarch/memcmp.S.  */
  41   IFUNC_IMPL (i, name, memcmp,
  42               IFUNC_IMPL_ADD (array, i, memcmp, HAS_SSE4_1,
  43                               __memcmp_sse4_1)
  44               IFUNC_IMPL_ADD (array, i, memcmp, HAS_SSSE3, __memcmp_ssse3)
  45               IFUNC_IMPL_ADD (array, i, memcmp, 1, __memcmp_sse2))
  46
  47   /* Support sysdeps/x86_64/multiarch/memmove_chk.S.  */
  48   IFUNC_IMPL (i, name, __memmove_chk,
  49               IFUNC_IMPL_ADD (array, i, __memmove_chk, HAS_SSSE3,
  50                               __memmove_chk_ssse3_back)
  51               IFUNC_IMPL_ADD (array, i, __memmove_chk, HAS_SSSE3,
  52                               __memmove_chk_ssse3)
  53               IFUNC_IMPL_ADD (array, i, __memmove_chk, 1,
  54                               __memmove_chk_sse2))
  55
  56   /* Support sysdeps/x86_64/multiarch/memmove.S.  */
  57   IFUNC_IMPL (i, name, memmove,
  58               IFUNC_IMPL_ADD (array, i, memmove, HAS_SSSE3,
  59                               __memmove_ssse3_back)
  60               IFUNC_IMPL_ADD (array, i, memmove, HAS_SSSE3,
  61                               __memmove_ssse3)
  62               IFUNC_IMPL_ADD (array, i, memmove, 1, __memmove_sse2))
  63
  64   /* Support sysdeps/x86_64/multiarch/stpncpy.S.  */
  65   IFUNC_IMPL (i, name, stpncpy,
  66               IFUNC_IMPL_ADD (array, i, stpncpy, HAS_SSSE3,
  67                               __stpncpy_ssse3)
  68               IFUNC_IMPL_ADD (array, i, stpncpy, 1,
  69                               __stpncpy_sse2_unaligned)
  70               IFUNC_IMPL_ADD (array, i, stpncpy, 1, __stpncpy_sse2))
  71
  72   /* Support sysdeps/x86_64/multiarch/stpcpy.S.  */
  73   IFUNC_IMPL (i, name, stpcpy,
  74               IFUNC_IMPL_ADD (array, i, stpcpy, HAS_SSSE3, __stpcpy_ssse3)
  75               IFUNC_IMPL_ADD (array, i, stpcpy, 1, __stpcpy_sse2_unaligned)
  76               IFUNC_IMPL_ADD (array, i, stpcpy, 1, __stpcpy_sse2))
  77
  78   /* Support sysdeps/x86_64/multiarch/strcasecmp_l.S.  */
  79   IFUNC_IMPL (i, name, strcasecmp,
  80               IFUNC_IMPL_ADD (array, i, strcasecmp, HAS_AVX,
  81                               __strcasecmp_avx)
  82               IFUNC_IMPL_ADD (array, i, strcasecmp, HAS_SSE4_2,
  83                               __strcasecmp_sse42)
  84               IFUNC_IMPL_ADD (array, i, strcasecmp, HAS_SSSE3,
  85                               __strcasecmp_ssse3)
  86               IFUNC_IMPL_ADD (array, i, strcasecmp, 1, __strcasecmp_sse2))
  87
  88   /* Support sysdeps/x86_64/multiarch/strcasecmp_l.S.  */
  89   IFUNC_IMPL (i, name, strcasecmp_l,
  90               IFUNC_IMPL_ADD (array, i, strcasecmp_l, HAS_AVX,
  91                               __strcasecmp_l_avx)
  92               IFUNC_IMPL_ADD (array, i, strcasecmp_l, HAS_SSE4_2,
  93                               __strcasecmp_l_sse42)
  94               IFUNC_IMPL_ADD (array, i, strcasecmp_l, HAS_SSSE3,
  95                               __strcasecmp_l_ssse3)
  96               IFUNC_IMPL_ADD (array, i, strcasecmp_l, 1,
  97                               __strcasecmp_l_sse2))
  98
  99   /* Support sysdeps/x86_64/multiarch/strcasestr.c.  */
 100   IFUNC_IMPL (i, name, strcasestr,
 101               IFUNC_IMPL_ADD (array, i, strcasestr, 1, __strcasestr_sse2))
 102
 103   /* Support sysdeps/x86_64/multiarch/strcat.S.  */
 104   IFUNC_IMPL (i, name, strcat,
 105               IFUNC_IMPL_ADD (array, i, strcat, HAS_SSSE3, __strcat_ssse3)
 106               IFUNC_IMPL_ADD (array, i, strcat, 1, __strcat_sse2_unaligned)
 107               IFUNC_IMPL_ADD (array, i, strcat, 1, __strcat_sse2))
 108
 109   /* Support sysdeps/x86_64/multiarch/strchr.S.  */
 110   IFUNC_IMPL (i, name, strchr,
 111               IFUNC_IMPL_ADD (array, i, strchr, 1, __strchr_sse2_no_bsf)
 112               IFUNC_IMPL_ADD (array, i, strchr, 1, __strchr_sse2))
 113
 114   /* Support sysdeps/x86_64/multiarch/strcmp.S.  */
 115   IFUNC_IMPL (i, name, strcmp,
 116               IFUNC_IMPL_ADD (array, i, strcmp, HAS_SSE4_2, __strcmp_sse42)
 117               IFUNC_IMPL_ADD (array, i, strcmp, HAS_SSSE3, __strcmp_ssse3)
 118               IFUNC_IMPL_ADD (array, i, strcmp, 1, __strcmp_sse2_unaligned)
 119               IFUNC_IMPL_ADD (array, i, strcmp, 1, __strcmp_sse2))
 120
 121   /* Support sysdeps/x86_64/multiarch/strcpy.S.  */
 122   IFUNC_IMPL (i, name, strcpy,
 123               IFUNC_IMPL_ADD (array, i, strcpy, HAS_SSSE3, __strcpy_ssse3)
 124               IFUNC_IMPL_ADD (array, i, strcpy, 1, __strcpy_sse2_unaligned)
 125               IFUNC_IMPL_ADD (array, i, strcpy, 1, __strcpy_sse2))
 126
 127   /* Support sysdeps/x86_64/multiarch/strcspn.S.  */
 128   IFUNC_IMPL (i, name, strcspn,
 129               IFUNC_IMPL_ADD (array, i, strcspn, HAS_SSE4_2,
 130                               __strcspn_sse42)
 131               IFUNC_IMPL_ADD (array, i, strcspn, 1, __strcspn_sse2))
 132
 133   /* Support sysdeps/x86_64/multiarch/strncase_l.S.  */
 134   IFUNC_IMPL (i, name, strncasecmp,
 135               IFUNC_IMPL_ADD (array, i, strncasecmp, HAS_AVX,
 136                               __strncasecmp_avx)
 137               IFUNC_IMPL_ADD (array, i, strncasecmp, HAS_SSE4_2,
 138                               __strncasecmp_sse42)
 139               IFUNC_IMPL_ADD (array, i, strncasecmp, HAS_SSSE3,
 140                               __strncasecmp_ssse3)
 141               IFUNC_IMPL_ADD (array, i, strncasecmp, 1,
 142                               __strncasecmp_sse2))
 143
 144   /* Support sysdeps/x86_64/multiarch/strncase_l.S.  */
 145   IFUNC_IMPL (i, name, strncasecmp_l,
 146               IFUNC_IMPL_ADD (array, i, strncasecmp_l, HAS_AVX,
 147                               __strncasecmp_l_avx)
 148               IFUNC_IMPL_ADD (array, i, strncasecmp_l, HAS_SSE4_2,
 149                               __strncasecmp_l_sse42)
 150               IFUNC_IMPL_ADD (array, i, strncasecmp_l, HAS_SSSE3,
 151                               __strncasecmp_l_ssse3)
 152               IFUNC_IMPL_ADD (array, i, strncasecmp_l, 1,
 153                               __strncasecmp_l_sse2))
 154
 155   /* Support sysdeps/x86_64/multiarch/strncat.S.  */
 156   IFUNC_IMPL (i, name, strncat,
 157               IFUNC_IMPL_ADD (array, i, strncat, HAS_SSSE3,
 158                               __strncat_ssse3)
 159               IFUNC_IMPL_ADD (array, i, strncat, 1,
 160                               __strncat_sse2_unaligned)
 161               IFUNC_IMPL_ADD (array, i, strncat, 1, __strncat_sse2))
 162
 163   /* Support sysdeps/x86_64/multiarch/strncpy.S.  */
 164   IFUNC_IMPL (i, name, strncpy,
 165               IFUNC_IMPL_ADD (array, i, strncpy, HAS_SSSE3,
 166                               __strncpy_ssse3)
 167               IFUNC_IMPL_ADD (array, i, strncpy, 1,
 168                               __strncpy_sse2_unaligned)
 169               IFUNC_IMPL_ADD (array, i, strncpy, 1, __strncpy_sse2))
 170
 171   /* Support sysdeps/x86_64/multiarch/strpbrk.S.  */
 172   IFUNC_IMPL (i, name, strpbrk,
 173               IFUNC_IMPL_ADD (array, i, strpbrk, HAS_SSE4_2,
 174                               __strpbrk_sse42)
 175               IFUNC_IMPL_ADD (array, i, strpbrk, 1, __strpbrk_sse2))
 176
 177
 178   /* Support sysdeps/x86_64/multiarch/strspn.S.  */
 179   IFUNC_IMPL (i, name, strspn,
 180               IFUNC_IMPL_ADD (array, i, strspn, HAS_SSE4_2, __strspn_sse42)
 181               IFUNC_IMPL_ADD (array, i, strspn, 1, __strspn_sse2))
 182
 183   /* Support sysdeps/x86_64/multiarch/strstr.c.  */
 184   IFUNC_IMPL (i, name, strstr,
 185               IFUNC_IMPL_ADD (array, i, strstr, 1, __strstr_sse2_unaligned)
 186               IFUNC_IMPL_ADD (array, i, strstr, 1, __strstr_sse2))
 187
 188   /* Support sysdeps/x86_64/multiarch/wcscpy.S.  */
 189   IFUNC_IMPL (i, name, wcscpy,
 190               IFUNC_IMPL_ADD (array, i, wcscpy, HAS_SSSE3, __wcscpy_ssse3)
 191               IFUNC_IMPL_ADD (array, i, wcscpy, 1, __wcscpy_sse2))
 192
 193   /* Support sysdeps/x86_64/multiarch/wmemcmp.S.  */
 194   IFUNC_IMPL (i, name, wmemcmp,
 195               IFUNC_IMPL_ADD (array, i, wmemcmp, HAS_SSE4_1,
 196                               __wmemcmp_sse4_1)
 197               IFUNC_IMPL_ADD (array, i, wmemcmp, HAS_SSSE3,
 198                               __wmemcmp_ssse3)
 199               IFUNC_IMPL_ADD (array, i, wmemcmp, 1, __wmemcmp_sse2))
 200
 201 #ifdef SHARED
 202   /* Support sysdeps/x86_64/multiarch/memcpy_chk.S.  */
 203   IFUNC_IMPL (i, name, __memcpy_chk,
 204               IFUNC_IMPL_ADD (array, i, __memcpy_chk, HAS_SSSE3,
 205                               __memcpy_chk_ssse3_back)
 206               IFUNC_IMPL_ADD (array, i, __memcpy_chk, HAS_SSSE3,
 207                               __memcpy_chk_ssse3)
 208               IFUNC_IMPL_ADD (array, i, __memcpy_chk, 1,
 209                               __memcpy_chk_sse2))
 210
 211   /* Support sysdeps/x86_64/multiarch/memcpy.S.  */
 212   IFUNC_IMPL (i, name, memcpy,
 213               IFUNC_IMPL_ADD (array, i, memcpy, HAS_SSSE3,
 214                               __memcpy_ssse3_back)
 215               IFUNC_IMPL_ADD (array, i, memcpy, HAS_SSSE3, __memcpy_ssse3)
 216               IFUNC_IMPL_ADD (array, i, memcpy, 1, __memcpy_sse2_unaligned)
 217               IFUNC_IMPL_ADD (array, i, memcpy, 1, __memcpy_sse2))
 218
 219   /* Support sysdeps/x86_64/multiarch/mempcpy_chk.S.  */
 220   IFUNC_IMPL (i, name, __mempcpy_chk,
 221               IFUNC_IMPL_ADD (array, i, __mempcpy_chk, HAS_SSSE3,
 222                               __mempcpy_chk_ssse3_back)
 223               IFUNC_IMPL_ADD (array, i, __mempcpy_chk, HAS_SSSE3,
 224                               __mempcpy_chk_ssse3)
 225               IFUNC_IMPL_ADD (array, i, __mempcpy_chk, 1,
 226                               __mempcpy_chk_sse2))
 227
 228   /* Support sysdeps/x86_64/multiarch/mempcpy.S.  */
 229   IFUNC_IMPL (i, name, mempcpy,
 230               IFUNC_IMPL_ADD (array, i, mempcpy, HAS_SSSE3,
 231                               __mempcpy_ssse3_back)
 232               IFUNC_IMPL_ADD (array, i, mempcpy, HAS_SSSE3,
 233                               __mempcpy_ssse3)
 234               IFUNC_IMPL_ADD (array, i, mempcpy, 1, __mempcpy_sse2))
 235
 236   /* Support sysdeps/x86_64/multiarch/strncmp.S.  */
 237   IFUNC_IMPL (i, name, strncmp,
 238               IFUNC_IMPL_ADD (array, i, strncmp, HAS_SSE4_2,
 239                               __strncmp_sse42)
 240               IFUNC_IMPL_ADD (array, i, strncmp, HAS_SSSE3,
 241                               __strncmp_ssse3)
 242               IFUNC_IMPL_ADD (array, i, strncmp, 1, __strncmp_sse2))
 243 #endif
 244
 245   return i;
 246 }