1 /* Multiple versions of memmove
2 All versions must be listed in ifunc-impl-list.c.
3 Copyright (C) 2010-2014 Free Software Foundation, Inc.
4 Contributed by Intel Corporation.
5 This file is part of the GNU C Library.
7 The GNU C Library is free software; you can redistribute it and/or
8 modify it under the terms of the GNU Lesser General Public
9 License as published by the Free Software Foundation; either
10 version 2.1 of the License, or (at your option) any later version.
12 The GNU C Library is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 Lesser General Public License for more details.
17 You should have received a copy of the GNU Lesser General Public
18 License along with the GNU C Library; if not, see
19 <http://www.gnu.org/licenses/>. */
22 #include <init-arch.h>
24 /* Define multiple versions only for the definition in lib. */
29 .type memmove, @gnu_indirect_function
31 cfi_adjust_cfa_offset (4)
32 cfi_rel_offset (ebx, 0)
34 cmpl $0, KIND_OFFSET+__cpu_features@GOTOFF(%ebx)
36 call __init_cpu_features
37 1: leal __memmove_ia32@GOTOFF(%ebx), %eax
38 testl $bit_SSSE3, CPUID_OFFSET+index_SSSE3+__cpu_features@GOTOFF(%ebx)
40 leal __memmove_ssse3@GOTOFF(%ebx), %eax
41 testl $bit_Fast_Rep_String, FEATURE_OFFSET+index_Fast_Rep_String+__cpu_features@GOTOFF(%ebx)
43 leal __memmove_ssse3_rep@GOTOFF(%ebx), %eax
45 cfi_adjust_cfa_offset (-4)
51 # define ENTRY(name) \
52 .type __memmove_ia32, @function; \
54 .globl __memmove_ia32; \
55 .hidden __memmove_ia32; \
56 __memmove_ia32: cfi_startproc; \
61 .type memmove, @gnu_indirect_function
62 cmpl $0, KIND_OFFSET+__cpu_features
64 call __init_cpu_features
65 1: leal __memmove_ia32, %eax
66 testl $bit_SSSE3, CPUID_OFFSET+index_SSSE3+__cpu_features
68 leal __memmove_ssse3, %eax
69 testl $bit_Fast_Rep_String, FEATURE_OFFSET+index_Fast_Rep_String+__cpu_features
71 leal __memmove_ssse3_rep, %eax
76 # define ENTRY(name) \
77 .type __memmove_ia32, @function; \
78 .globl __memmove_ia32; \
80 __memmove_ia32: cfi_startproc; \
86 cfi_endproc; .size __memmove_ia32, .-__memmove_ia32
89 # define ENTRY_CHK(name) \
90 .type __memmove_chk_ia32, @function; \
91 .globl __memmove_chk_ia32; \
93 __memmove_chk_ia32: cfi_startproc; \
96 # define END_CHK(name) \
97 cfi_endproc; .size __memmove_chk_ia32, .-__memmove_chk_ia32
100 # undef libc_hidden_builtin_def
101 /* IFUNC doesn't work with the hidden functions in shared library since
102 they will be called without setting up EBX needed for PLT which is
104 # define libc_hidden_builtin_def(name) \
105 .globl __GI_memmove; __GI_memmove = __memmove_ia32
109 #include "../memmove.S"