sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c

   1 /* Enumerate available IFUNC implementations of a function.  PowerPC32 version.
   2    Copyright (C) 2013-2019 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   /* hwcap contains only the latest supported ISA, the code checks which is
  38      and fills the previous supported ones.  */
  39   if (hwcap & PPC_FEATURE_ARCH_2_06)
  40     hwcap |= PPC_FEATURE_ARCH_2_05 | PPC_FEATURE_POWER5_PLUS |
  41              PPC_FEATURE_POWER5 | PPC_FEATURE_POWER4;
  42   else if (hwcap & PPC_FEATURE_ARCH_2_05)
  43     hwcap |= PPC_FEATURE_POWER5_PLUS | PPC_FEATURE_POWER5 | PPC_FEATURE_POWER4;
  44   else if (hwcap & PPC_FEATURE_POWER5_PLUS)
  45     hwcap |= PPC_FEATURE_POWER5 | PPC_FEATURE_POWER4;
  46   else if (hwcap & PPC_FEATURE_POWER5)
  47     hwcap |= PPC_FEATURE_POWER4;
  48
  49 #ifdef SHARED
  50   /* Support sysdeps/powerpc/powerpc32/power4/multiarch/memcpy.c.  */
  51   IFUNC_IMPL (i, name, memcpy,
  52               IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_HAS_VSX,
  53                               __memcpy_power7)
  54               IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_ARCH_2_06,
  55                               __memcpy_a2)
  56               IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_ARCH_2_05,
  57                               __memcpy_power6)
  58               IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_CELL_BE,
  59                               __memcpy_cell)
  60               IFUNC_IMPL_ADD (array, i, memcpy, 1, __memcpy_ppc))
  61
  62   /* Support sysdeps/powerpc/powerpc32/power4/multiarch/memmove.c.  */
  63   IFUNC_IMPL (i, name, memmove,
  64               IFUNC_IMPL_ADD (array, i, memmove, hwcap & PPC_FEATURE_HAS_VSX,
  65                               __memmove_power7)
  66               IFUNC_IMPL_ADD (array, i, memmove, 1, __memmove_ppc))
  67
  68   /* Support sysdeps/powerpc/powerpc32/power4/multiarch/memset.c.  */
  69   IFUNC_IMPL (i, name, memset,
  70               IFUNC_IMPL_ADD (array, i, memset, hwcap & PPC_FEATURE_HAS_VSX,
  71                               __memset_power7)
  72               IFUNC_IMPL_ADD (array, i, memset, hwcap & PPC_FEATURE_ARCH_2_05,
  73                               __memset_power6)
  74               IFUNC_IMPL_ADD (array, i, memset, 1, __memset_ppc))
  75
  76   /* Support sysdeps/powerpc/powerpc32/power4/multiarch/bzero.c.  */
  77   IFUNC_IMPL (i, name, bzero,
  78               IFUNC_IMPL_ADD (array, i, bzero, hwcap & PPC_FEATURE_HAS_VSX,
  79                               __bzero_power7)
  80               IFUNC_IMPL_ADD (array, i, bzero, hwcap & PPC_FEATURE_ARCH_2_05,
  81                               __bzero_power6)
  82               IFUNC_IMPL_ADD (array, i, bzero, 1, __bzero_ppc))
  83
  84   /* Support sysdeps/powerpc/powerpc32/power4/multiarch/strlen.c.  */
  85   IFUNC_IMPL (i, name, strlen,
  86               IFUNC_IMPL_ADD (array, i, strlen, hwcap & PPC_FEATURE_HAS_VSX,
  87                               __strlen_power7)
  88               IFUNC_IMPL_ADD (array, i, strlen, 1,
  89                               __strlen_ppc))
  90
  91   /* Support sysdeps/powerpc/powerpc32/power4/multiarch/strnlen.c.  */
  92   IFUNC_IMPL (i, name, strnlen,
  93               IFUNC_IMPL_ADD (array, i, strnlen, hwcap & PPC_FEATURE_HAS_VSX,
  94                               __strnlen_power7)
  95               IFUNC_IMPL_ADD (array, i, strnlen, 1,
  96                               __strnlen_ppc))
  97
  98   /* Support sysdeps/powerpc/powerpc32/multiarch/strncmp.c.  */
  99   IFUNC_IMPL (i, name, strncmp,
 100               IFUNC_IMPL_ADD (array, i, strncmp, hwcap & PPC_FEATURE_HAS_VSX,
 101                               __strncmp_power7)
 102               IFUNC_IMPL_ADD (array, i, strncmp, 1,
 103                               __strncmp_ppc))
 104 #endif
 105
 106   /* Support sysdeps/powerpc/powerpc32/power4/multiarch/memcmp.c.  */
 107   IFUNC_IMPL (i, name, memcmp,
 108               IFUNC_IMPL_ADD (array, i, memcmp, hwcap & PPC_FEATURE_HAS_VSX,
 109                               __memcmp_power7)
 110               IFUNC_IMPL_ADD (array, i, memcmp, 1, __memcmp_ppc))
 111
 112   /* Support sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy.c.  */
 113   IFUNC_IMPL (i, name, mempcpy,
 114               IFUNC_IMPL_ADD (array, i, mempcpy,
 115                               hwcap & PPC_FEATURE_HAS_VSX,
 116                               __mempcpy_power7)
 117               IFUNC_IMPL_ADD (array, i, mempcpy, 1,
 118                               __mempcpy_ppc))
 119
 120   /* Support sysdeps/powerpc/powerpc32/power4/multiarch/memchr.c.  */
 121   IFUNC_IMPL (i, name, memchr,
 122               IFUNC_IMPL_ADD (array, i, memchr,
 123                               hwcap & PPC_FEATURE_HAS_VSX,
 124                               __memchr_power7)
 125               IFUNC_IMPL_ADD (array, i, memchr, 1,
 126                               __memchr_ppc))
 127
 128   /* Support sysdeps/powerpc/powerpc32/power4/multiarch/memrchr.c.  */
 129   IFUNC_IMPL (i, name, memrchr,
 130               IFUNC_IMPL_ADD (array, i, memrchr,
 131                               hwcap & PPC_FEATURE_HAS_VSX,
 132                               __memrchr_power7)
 133               IFUNC_IMPL_ADD (array, i, memrchr, 1,
 134                               __memrchr_ppc))
 135
 136   /* Support sysdeps/powerpc/powerpc32/power4/multiarch/rawmemchr.c.  */
 137   IFUNC_IMPL (i, name, rawmemchr,
 138               IFUNC_IMPL_ADD (array, i, rawmemchr,
 139                               hwcap & PPC_FEATURE_HAS_VSX,
 140                               __rawmemchr_power7)
 141               IFUNC_IMPL_ADD (array, i, rawmemchr, 1,
 142                               __rawmemchr_ppc))
 143
 144   /* Support sysdeps/powerpc/powerpc32/power4/multiarch/strcasecmp.c.  */
 145   IFUNC_IMPL (i, name, strcasecmp,
 146               IFUNC_IMPL_ADD (array, i, strcasecmp,
 147                               hwcap & PPC_FEATURE_HAS_VSX,
 148                               __strcasecmp_power7)
 149               IFUNC_IMPL_ADD (array, i, strcasecmp, 1, __strcasecmp_ppc))
 150
 151   /* Support sysdeps/powerpc/powerpc32/power4/multiarch/strcasecmp_l.c.  */
 152   IFUNC_IMPL (i, name, strcasecmp_l,
 153               IFUNC_IMPL_ADD (array, i, strcasecmp_l,
 154                               hwcap & PPC_FEATURE_HAS_VSX,
 155                               __strcasecmp_l_power7)
 156               IFUNC_IMPL_ADD (array, i, strcasecmp_l, 1,
 157                               __strcasecmp_l_ppc))
 158
 159   /* Support sysdeps/powerpc/powerpc32/power4/multiarch/strncase.c.  */
 160   IFUNC_IMPL (i, name, strncasecmp,
 161               IFUNC_IMPL_ADD (array, i, strncasecmp,
 162                               hwcap & PPC_FEATURE_HAS_VSX,
 163                               __strncasecmp_power7)
 164               IFUNC_IMPL_ADD (array, i, strncasecmp, 1, __strncasecmp_ppc))
 165
 166   /* Support sysdeps/powerpc/powerpc32/power4/multiarch/strncase_l.c.  */
 167   IFUNC_IMPL (i, name, strncasecmp_l,
 168               IFUNC_IMPL_ADD (array, i, strncasecmp_l,
 169                               hwcap & PPC_FEATURE_HAS_VSX,
 170                               __strncasecmp_l_power7)
 171               IFUNC_IMPL_ADD (array, i, strncasecmp_l, 1,
 172                               __strncasecmp_l_ppc))
 173
 174   /* Support sysdeps/powerpc/powerpc32/power4/multiarch/strchrnul.c.  */
 175   IFUNC_IMPL (i, name, strchrnul,
 176               IFUNC_IMPL_ADD (array, i, strchrnul,
 177                               hwcap & PPC_FEATURE_HAS_VSX,
 178                               __strchrnul_power7)
 179               IFUNC_IMPL_ADD (array, i, strchrnul, 1,
 180                               __strchrnul_ppc))
 181
 182   /* Support sysdeps/powerpc/powerpc32/power4/multiarch/strchr.c.  */
 183   IFUNC_IMPL (i, name, strchr,
 184               IFUNC_IMPL_ADD (array, i, strchr,
 185                               hwcap & PPC_FEATURE_HAS_VSX,
 186                               __strchr_power7)
 187               IFUNC_IMPL_ADD (array, i, strchr, 1,
 188                               __strchr_ppc))
 189
 190   return i;
 191 }