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

   1 /* Enumerate available IFUNC implementations of a function.  PowerPC32 version.
   2    Copyright (C) 2013-2023 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    <https://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 #include <cpu-features.h>
  25
  26 size_t
  27 __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
  28                         size_t max)
  29 {
  30   size_t i = max;
  31
  32   const struct cpu_features *features = &GLRO(dl_powerpc_cpu_features);
  33   unsigned long int hwcap = features->hwcap;
  34   /* hwcap contains only the latest supported ISA, the code checks which is
  35      and fills the previous supported ones.  */
  36   if (hwcap & PPC_FEATURE_ARCH_2_06)
  37     hwcap |= PPC_FEATURE_ARCH_2_05 | PPC_FEATURE_POWER5_PLUS |
  38              PPC_FEATURE_POWER5 | PPC_FEATURE_POWER4;
  39   else if (hwcap & PPC_FEATURE_ARCH_2_05)
  40     hwcap |= PPC_FEATURE_POWER5_PLUS | PPC_FEATURE_POWER5 | PPC_FEATURE_POWER4;
  41   else if (hwcap & PPC_FEATURE_POWER5_PLUS)
  42     hwcap |= PPC_FEATURE_POWER5 | PPC_FEATURE_POWER4;
  43   else if (hwcap & PPC_FEATURE_POWER5)
  44     hwcap |= PPC_FEATURE_POWER4;
  45
  46 #ifdef SHARED
  47   /* Support sysdeps/powerpc/powerpc32/power4/multiarch/memcpy.c.  */
  48   IFUNC_IMPL (i, name, memcpy,
  49               IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_HAS_VSX,
  50                               __memcpy_power7)
  51               IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_ARCH_2_06,
  52                               __memcpy_a2)
  53               IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_ARCH_2_05,
  54                               __memcpy_power6)
  55               IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_CELL_BE,
  56                               __memcpy_cell)
  57               IFUNC_IMPL_ADD (array, i, memcpy, 1, __memcpy_ppc))
  58
  59   /* Support sysdeps/powerpc/powerpc32/power4/multiarch/memmove.c.  */
  60   IFUNC_IMPL (i, name, memmove,
  61               IFUNC_IMPL_ADD (array, i, memmove, hwcap & PPC_FEATURE_HAS_VSX,
  62                               __memmove_power7)
  63               IFUNC_IMPL_ADD (array, i, memmove, 1, __memmove_ppc))
  64
  65   /* Support sysdeps/powerpc/powerpc32/power4/multiarch/memset.c.  */
  66   IFUNC_IMPL (i, name, memset,
  67               IFUNC_IMPL_ADD (array, i, memset, hwcap & PPC_FEATURE_HAS_VSX,
  68                               __memset_power7)
  69               IFUNC_IMPL_ADD (array, i, memset, hwcap & PPC_FEATURE_ARCH_2_05,
  70                               __memset_power6)
  71               IFUNC_IMPL_ADD (array, i, memset, 1, __memset_ppc))
  72
  73   /* Support sysdeps/powerpc/powerpc32/power4/multiarch/strlen.c.  */
  74   IFUNC_IMPL (i, name, strlen,
  75               IFUNC_IMPL_ADD (array, i, strlen, hwcap & PPC_FEATURE_HAS_VSX,
  76                               __strlen_power7)
  77               IFUNC_IMPL_ADD (array, i, strlen, 1,
  78                               __strlen_ppc))
  79
  80   /* Support sysdeps/powerpc/powerpc32/power4/multiarch/strnlen.c.  */
  81   IFUNC_IMPL (i, name, strnlen,
  82               IFUNC_IMPL_ADD (array, i, strnlen, hwcap & PPC_FEATURE_HAS_VSX,
  83                               __strnlen_power7)
  84               IFUNC_IMPL_ADD (array, i, strnlen, 1,
  85                               __strnlen_ppc))
  86 #endif
  87
  88   /* Support sysdeps/powerpc/powerpc32/power4/multiarch/memcmp.c.  */
  89   IFUNC_IMPL (i, name, memcmp,
  90               IFUNC_IMPL_ADD (array, i, memcmp, hwcap & PPC_FEATURE_HAS_VSX,
  91                               __memcmp_power7)
  92               IFUNC_IMPL_ADD (array, i, memcmp, 1, __memcmp_ppc))
  93
  94   /* Support sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy.c.  */
  95   IFUNC_IMPL (i, name, mempcpy,
  96               IFUNC_IMPL_ADD (array, i, mempcpy,
  97                               hwcap & PPC_FEATURE_HAS_VSX,
  98                               __mempcpy_power7)
  99               IFUNC_IMPL_ADD (array, i, mempcpy, 1,
 100                               __mempcpy_ppc))
 101
 102   /* Support sysdeps/powerpc/powerpc32/power4/multiarch/memchr.c.  */
 103   IFUNC_IMPL (i, name, memchr,
 104               IFUNC_IMPL_ADD (array, i, memchr,
 105                               hwcap & PPC_FEATURE_HAS_VSX,
 106                               __memchr_power7)
 107               IFUNC_IMPL_ADD (array, i, memchr, 1,
 108                               __memchr_ppc))
 109
 110   /* Support sysdeps/powerpc/powerpc32/power4/multiarch/memrchr.c.  */
 111   IFUNC_IMPL (i, name, memrchr,
 112               IFUNC_IMPL_ADD (array, i, memrchr,
 113                               hwcap & PPC_FEATURE_HAS_VSX,
 114                               __memrchr_power7)
 115               IFUNC_IMPL_ADD (array, i, memrchr, 1,
 116                               __memrchr_ppc))
 117
 118   /* Support sysdeps/powerpc/powerpc32/power4/multiarch/rawmemchr.c.  */
 119   IFUNC_IMPL (i, name, rawmemchr,
 120               IFUNC_IMPL_ADD (array, i, rawmemchr,
 121                               hwcap & PPC_FEATURE_HAS_VSX,
 122                               __rawmemchr_power7)
 123               IFUNC_IMPL_ADD (array, i, rawmemchr, 1,
 124                               __rawmemchr_ppc))
 125
 126   /* Support sysdeps/powerpc/powerpc32/power4/multiarch/strcasecmp.c.  */
 127   IFUNC_IMPL (i, name, strcasecmp,
 128               IFUNC_IMPL_ADD (array, i, strcasecmp,
 129                               hwcap & PPC_FEATURE_HAS_VSX,
 130                               __strcasecmp_power7)
 131               IFUNC_IMPL_ADD (array, i, strcasecmp, 1, __strcasecmp_ppc))
 132
 133   /* Support sysdeps/powerpc/powerpc32/power4/multiarch/strcasecmp_l.c.  */
 134   IFUNC_IMPL (i, name, strcasecmp_l,
 135               IFUNC_IMPL_ADD (array, i, strcasecmp_l,
 136                               hwcap & PPC_FEATURE_HAS_VSX,
 137                               __strcasecmp_l_power7)
 138               IFUNC_IMPL_ADD (array, i, strcasecmp_l, 1,
 139                               __strcasecmp_l_ppc))
 140
 141   /* Support sysdeps/powerpc/powerpc32/power4/multiarch/strncase.c.  */
 142   IFUNC_IMPL (i, name, strncasecmp,
 143               IFUNC_IMPL_ADD (array, i, strncasecmp,
 144                               hwcap & PPC_FEATURE_HAS_VSX,
 145                               __strncasecmp_power7)
 146               IFUNC_IMPL_ADD (array, i, strncasecmp, 1, __strncasecmp_ppc))
 147
 148   /* Support sysdeps/powerpc/powerpc32/power4/multiarch/strncase_l.c.  */
 149   IFUNC_IMPL (i, name, strncasecmp_l,
 150               IFUNC_IMPL_ADD (array, i, strncasecmp_l,
 151                               hwcap & PPC_FEATURE_HAS_VSX,
 152                               __strncasecmp_l_power7)
 153               IFUNC_IMPL_ADD (array, i, strncasecmp_l, 1,
 154                               __strncasecmp_l_ppc))
 155
 156   /* Support sysdeps/powerpc/powerpc32/power4/multiarch/strchrnul.c.  */
 157   IFUNC_IMPL (i, name, strchrnul,
 158               IFUNC_IMPL_ADD (array, i, strchrnul,
 159                               hwcap & PPC_FEATURE_HAS_VSX,
 160                               __strchrnul_power7)
 161               IFUNC_IMPL_ADD (array, i, strchrnul, 1,
 162                               __strchrnul_ppc))
 163
 164   /* Support sysdeps/powerpc/powerpc32/power4/multiarch/strchr.c.  */
 165   IFUNC_IMPL (i, name, strchr,
 166               IFUNC_IMPL_ADD (array, i, strchr,
 167                               hwcap & PPC_FEATURE_HAS_VSX,
 168                               __strchr_power7)
 169               IFUNC_IMPL_ADD (array, i, strchr, 1,
 170                               __strchr_ppc))
 171
 172   return 0;
 173 }