sysdeps/aarch64/multiarch/ifunc-impl-list.c

   1 /* Enumerate available IFUNC implementations of a function.  AARCH64 version.
   2    Copyright (C) 2017-2023 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 <init-arch.h>
  25 #include <stdio.h>
  26
  27 size_t
  28 __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
  29                         size_t max)
  30 {
  31   size_t i = max;
  32
  33   INIT_ARCH ();
  34
  35   /* Support sysdeps/aarch64/multiarch/memcpy.c, memmove.c and memset.c.  */
  36   IFUNC_IMPL (i, name, memcpy,
  37               IFUNC_IMPL_ADD (array, i, memcpy, 1, __memcpy_thunderx)
  38               IFUNC_IMPL_ADD (array, i, memcpy, !bti, __memcpy_thunderx2)
  39               IFUNC_IMPL_ADD (array, i, memcpy, 1, __memcpy_falkor)
  40 #if HAVE_AARCH64_SVE_ASM
  41               IFUNC_IMPL_ADD (array, i, memcpy, sve, __memcpy_a64fx)
  42               IFUNC_IMPL_ADD (array, i, memcpy, sve, __memcpy_sve)
  43 #endif
  44               IFUNC_IMPL_ADD (array, i, memcpy, 1, __memcpy_generic))
  45   IFUNC_IMPL (i, name, memmove,
  46               IFUNC_IMPL_ADD (array, i, memmove, 1, __memmove_thunderx)
  47               IFUNC_IMPL_ADD (array, i, memmove, !bti, __memmove_thunderx2)
  48               IFUNC_IMPL_ADD (array, i, memmove, 1, __memmove_falkor)
  49 #if HAVE_AARCH64_SVE_ASM
  50               IFUNC_IMPL_ADD (array, i, memmove, sve, __memmove_a64fx)
  51               IFUNC_IMPL_ADD (array, i, memmove, sve, __memmove_sve)
  52 #endif
  53               IFUNC_IMPL_ADD (array, i, memmove, 1, __memmove_generic))
  54   IFUNC_IMPL (i, name, memset,
  55               /* Enable this on non-falkor processors too so that other cores
  56                  can do a comparative analysis with __memset_generic.  */
  57               IFUNC_IMPL_ADD (array, i, memset, (zva_size == 64), __memset_falkor)
  58               IFUNC_IMPL_ADD (array, i, memset, (zva_size == 64), __memset_emag)
  59               IFUNC_IMPL_ADD (array, i, memset, 1, __memset_kunpeng)
  60 #if HAVE_AARCH64_SVE_ASM
  61               IFUNC_IMPL_ADD (array, i, memset, sve && zva_size == 256, __memset_a64fx)
  62 #endif
  63               IFUNC_IMPL_ADD (array, i, memset, 1, __memset_generic))
  64   IFUNC_IMPL (i, name, memchr,
  65               IFUNC_IMPL_ADD (array, i, memchr, !mte, __memchr_nosimd)
  66               IFUNC_IMPL_ADD (array, i, memchr, 1, __memchr_generic))
  67
  68   IFUNC_IMPL (i, name, strlen,
  69               IFUNC_IMPL_ADD (array, i, strlen, !mte, __strlen_asimd)
  70               IFUNC_IMPL_ADD (array, i, strlen, 1, __strlen_mte))
  71
  72   return 0;
  73 }