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8b2b7715 | 1 | /* Multiple versions of memmove. |
ac49ecaf | 2 | All versions must be listed in ifunc-impl-list.c. |
b168057a | 3 | Copyright (C) 2010-2015 Free Software Foundation, Inc. |
8b2b7715 RM |
4 | This file is part of the GNU C Library. |
5 | ||
6 | The GNU C Library is free software; you can redistribute it and/or | |
7 | modify it under the terms of the GNU Lesser General Public | |
8 | License as published by the Free Software Foundation; either | |
9 | version 2.1 of the License, or (at your option) any later version. | |
10 | ||
11 | The GNU C Library is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | Lesser General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU Lesser General Public | |
59ba27a6 PE |
17 | License along with the GNU C Library; if not, see |
18 | <http://www.gnu.org/licenses/>. */ | |
8b2b7715 | 19 | |
4f41c682 | 20 | #if IS_IN (libc) |
9a0a5486 RM |
21 | # define MEMMOVE __memmove_sse2 |
22 | # ifdef SHARED | |
23 | # undef libc_hidden_builtin_def | |
24 | # define libc_hidden_builtin_def(name) \ | |
6fb8cbcb | 25 | __hidden_ver1 (__memmove_sse2, __GI_memmove, __memmove_sse2); |
9a0a5486 | 26 | # endif |
6fb8cbcb | 27 | |
f85fa270 L |
28 | /* Redefine memmove so that the compiler won't complain about the type |
29 | mismatch with the IFUNC selector in strong_alias, below. */ | |
9a0a5486 RM |
30 | # undef memmove |
31 | # define memmove __redirect_memmove | |
32 | # include <string.h> | |
33 | # undef memmove | |
34 | ||
35 | extern __typeof (__redirect_memmove) __memmove_sse2 attribute_hidden; | |
36 | extern __typeof (__redirect_memmove) __memmove_ssse3 attribute_hidden; | |
37 | extern __typeof (__redirect_memmove) __memmove_ssse3_back attribute_hidden; | |
05f3633d LM |
38 | extern __typeof (__redirect_memmove) __memmove_avx_unaligned attribute_hidden; |
39 | ||
f85fa270 | 40 | #endif |
8b2b7715 | 41 | |
6fb8cbcb L |
42 | #include "string/memmove.c" |
43 | ||
4f41c682 | 44 | #if IS_IN (libc) |
9a0a5486 RM |
45 | # include <shlib-compat.h> |
46 | # include "init-arch.h" | |
f85fa270 L |
47 | |
48 | /* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle | |
49 | ifunc symbol properly. */ | |
50 | extern __typeof (__redirect_memmove) __libc_memmove; | |
51 | libc_ifunc (__libc_memmove, | |
5f3d0b78 | 52 | HAS_AVX_FAST_UNALIGNED_LOAD |
05f3633d LM |
53 | ? __memmove_avx_unaligned |
54 | : (HAS_SSSE3 | |
55 | ? (HAS_FAST_COPY_BACKWARD | |
56 | ? __memmove_ssse3_back : __memmove_ssse3) | |
57 | : __memmove_sse2)); | |
f85fa270 | 58 | |
f85fa270 | 59 | strong_alias (__libc_memmove, memmove) |
0354e355 | 60 | |
9a0a5486 | 61 | # if SHLIB_COMPAT (libc, GLIBC_2_2_5, GLIBC_2_14) |
0354e355 | 62 | compat_symbol (libc, memmove, memcpy, GLIBC_2_2_5); |
9a0a5486 | 63 | # endif |
6fb8cbcb | 64 | #endif |