1/* Enumerate available IFUNC implementations of a function. AARCH64 version.
2 Copyright (C) 2017-2024 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
27size_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#if HAVE_AARCH64_SVE_ASM
40 IFUNC_IMPL_ADD (array, i, memcpy, sve && !bti, __memcpy_a64fx)
41 IFUNC_IMPL_ADD (array, i, memcpy, sve, __memcpy_sve)
42#endif
43 IFUNC_IMPL_ADD (array, i, memcpy, mops, __memcpy_mops)
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#if HAVE_AARCH64_SVE_ASM
49 IFUNC_IMPL_ADD (array, i, memmove, sve && !bti, __memmove_a64fx)
50 IFUNC_IMPL_ADD (array, i, memmove, sve, __memmove_sve)
51#endif
52 IFUNC_IMPL_ADD (array, i, memmove, mops, __memmove_mops)
53 IFUNC_IMPL_ADD (array, i, memmove, 1, __memmove_generic))
54 IFUNC_IMPL (i, name, memset,
55 IFUNC_IMPL_ADD (array, i, memset, (zva_size == 64), __memset_zva64)
56 IFUNC_IMPL_ADD (array, i, memset, 1, __memset_emag)
57 IFUNC_IMPL_ADD (array, i, memset, 1, __memset_kunpeng)
58#if HAVE_AARCH64_SVE_ASM
59 IFUNC_IMPL_ADD (array, i, memset, sve && !bti && zva_size == 256, __memset_a64fx)
60#endif
61 IFUNC_IMPL_ADD (array, i, memset, mops, __memset_mops)
62 IFUNC_IMPL_ADD (array, i, memset, 1, __memset_generic))
63 IFUNC_IMPL (i, name, memchr,
64 IFUNC_IMPL_ADD (array, i, memchr, !mte, __memchr_nosimd)
65 IFUNC_IMPL_ADD (array, i, memchr, 1, __memchr_generic))
66
67 IFUNC_IMPL (i, name, strlen,
68 IFUNC_IMPL_ADD (array, i, strlen, !mte, __strlen_asimd)
69 IFUNC_IMPL_ADD (array, i, strlen, 1, __strlen_generic))
70
71 return 0;
72}
73

source code of glibc/sysdeps/aarch64/multiarch/ifunc-impl-list.c