]>
Commit | Line | Data |
---|---|---|
3af48cbd | 1 | /* Multiple versions of __mempcpy_chk |
b090e8ea | 2 | All versions must be listed in ifunc-impl-list.c. |
b168057a | 3 | Copyright (C) 2010-2015 Free Software Foundation, Inc. |
3af48cbd L |
4 | Contributed by Intel Corporation. |
5 | This file is part of the GNU C Library. | |
6 | ||
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. | |
11 | ||
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. | |
16 | ||
17 | You should have received a copy of the GNU Lesser General Public | |
59ba27a6 PE |
18 | License along with the GNU C Library; if not, see |
19 | <http://www.gnu.org/licenses/>. */ | |
3af48cbd L |
20 | |
21 | #include <sysdep.h> | |
22 | #include <init-arch.h> | |
23 | ||
24 | /* Define multiple versions only for the definition in lib and for | |
25 | DSO. There are no multiarch mempcpy functions for static binaries. | |
26 | */ | |
4f41c682 | 27 | #if IS_IN (libc) |
3af48cbd | 28 | # ifdef SHARED |
3af48cbd L |
29 | .text |
30 | ENTRY(__mempcpy_chk) | |
31 | .type __mempcpy_chk, @gnu_indirect_function | |
32 | pushl %ebx | |
33 | cfi_adjust_cfa_offset (4) | |
34 | cfi_rel_offset (ebx, 0) | |
9a1d9254 | 35 | LOAD_PIC_REG(bx) |
3af48cbd L |
36 | cmpl $0, KIND_OFFSET+__cpu_features@GOTOFF(%ebx) |
37 | jne 1f | |
38 | call __init_cpu_features | |
8b4416d8 AS |
39 | leal __mempcpy_chk_ia32@GOTOFF(%ebx), %eax |
40 | 1: testl $bit_SSE2, CPUID_OFFSET+index_SSE2+__cpu_features@GOTOFF(%ebx) | |
41 | jz 2f | |
42 | leal __mempcpy_chk_sse2_unaligned@GOTOFF(%ebx), %eax | |
43 | testl $bit_Fast_Unaligned_Load, FEATURE_OFFSET+index_Fast_Unaligned_Load+__cpu_features@GOTOFF(%ebx) | |
44 | jnz 2f | |
3af48cbd L |
45 | testl $bit_SSSE3, CPUID_OFFSET+index_SSSE3+__cpu_features@GOTOFF(%ebx) |
46 | jz 2f | |
47 | leal __mempcpy_chk_ssse3@GOTOFF(%ebx), %eax | |
48 | testl $bit_Fast_Rep_String, FEATURE_OFFSET+index_Fast_Rep_String+__cpu_features@GOTOFF(%ebx) | |
49 | jz 2f | |
50 | leal __mempcpy_chk_ssse3_rep@GOTOFF(%ebx), %eax | |
51 | 2: popl %ebx | |
52 | cfi_adjust_cfa_offset (-4) | |
53 | cfi_restore (ebx) | |
54 | ret | |
55 | END(__mempcpy_chk) | |
56 | # else | |
57 | # include "../mempcpy_chk.S" | |
58 | # endif | |
59 | #endif |