1*61046927SAndroid Build Coastguard Worker /**************************************************************************
2*61046927SAndroid Build Coastguard Worker *
3*61046927SAndroid Build Coastguard Worker * Copyright 2020 Red Hat
4*61046927SAndroid Build Coastguard Worker * All Rights Reserved.
5*61046927SAndroid Build Coastguard Worker *
6*61046927SAndroid Build Coastguard Worker * Permission is hereby granted, free of charge, to any person obtaining a
7*61046927SAndroid Build Coastguard Worker * copy of this software and associated documentation files (the
8*61046927SAndroid Build Coastguard Worker * "Software"), to deal in the Software without restriction, including
9*61046927SAndroid Build Coastguard Worker * without limitation the rights to use, copy, modify, merge, publish,
10*61046927SAndroid Build Coastguard Worker * distribute, sub license, and/or sell copies of the Software, and to
11*61046927SAndroid Build Coastguard Worker * permit persons to whom the Software is furnished to do so, subject to
12*61046927SAndroid Build Coastguard Worker * the following conditions:
13*61046927SAndroid Build Coastguard Worker *
14*61046927SAndroid Build Coastguard Worker * The above copyright notice and this permission notice (including the
15*61046927SAndroid Build Coastguard Worker * next paragraph) shall be included in all copies or substantial portions
16*61046927SAndroid Build Coastguard Worker * of the Software.
17*61046927SAndroid Build Coastguard Worker *
18*61046927SAndroid Build Coastguard Worker * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19*61046927SAndroid Build Coastguard Worker * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20*61046927SAndroid Build Coastguard Worker * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21*61046927SAndroid Build Coastguard Worker * IN NO EVENT SHALL THE AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR
22*61046927SAndroid Build Coastguard Worker * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23*61046927SAndroid Build Coastguard Worker * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24*61046927SAndroid Build Coastguard Worker * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25*61046927SAndroid Build Coastguard Worker *
26*61046927SAndroid Build Coastguard Worker **************************************************************************/
27*61046927SAndroid Build Coastguard Worker
28*61046927SAndroid Build Coastguard Worker #include "util/detect.h"
29*61046927SAndroid Build Coastguard Worker
30*61046927SAndroid Build Coastguard Worker static inline void *
util_memset32(void * s,uint32_t ui,size_t n)31*61046927SAndroid Build Coastguard Worker util_memset32(void *s, uint32_t ui, size_t n)
32*61046927SAndroid Build Coastguard Worker {
33*61046927SAndroid Build Coastguard Worker #if DETECT_CC_GCC && DETECT_ARCH_X86_64
34*61046927SAndroid Build Coastguard Worker long d0, d1;
35*61046927SAndroid Build Coastguard Worker __asm__ volatile("rep\n\t"
36*61046927SAndroid Build Coastguard Worker "stosl"
37*61046927SAndroid Build Coastguard Worker : "=&c" (d0), "=&D" (d1)
38*61046927SAndroid Build Coastguard Worker : "a" (ui), "1" (s), "0" (n)
39*61046927SAndroid Build Coastguard Worker : "memory");
40*61046927SAndroid Build Coastguard Worker return s;
41*61046927SAndroid Build Coastguard Worker #else
42*61046927SAndroid Build Coastguard Worker uint32_t *xs = (uint32_t *)s;
43*61046927SAndroid Build Coastguard Worker while (n--)
44*61046927SAndroid Build Coastguard Worker *xs++ = ui;
45*61046927SAndroid Build Coastguard Worker return s;
46*61046927SAndroid Build Coastguard Worker #endif
47*61046927SAndroid Build Coastguard Worker }
48*61046927SAndroid Build Coastguard Worker
49*61046927SAndroid Build Coastguard Worker static inline void *
util_memset64(void * s,uint64_t ui,size_t n)50*61046927SAndroid Build Coastguard Worker util_memset64(void *s, uint64_t ui, size_t n)
51*61046927SAndroid Build Coastguard Worker {
52*61046927SAndroid Build Coastguard Worker #if DETECT_CC_GCC && DETECT_ARCH_X86_64
53*61046927SAndroid Build Coastguard Worker long d0, d1;
54*61046927SAndroid Build Coastguard Worker __asm__ volatile("rep\n\t"
55*61046927SAndroid Build Coastguard Worker "stosq"
56*61046927SAndroid Build Coastguard Worker : "=&c" (d0), "=&D" (d1)
57*61046927SAndroid Build Coastguard Worker : "a" (ui), "1" (s), "0" (n)
58*61046927SAndroid Build Coastguard Worker : "memory");
59*61046927SAndroid Build Coastguard Worker return s;
60*61046927SAndroid Build Coastguard Worker #else
61*61046927SAndroid Build Coastguard Worker uint64_t *xs = (uint64_t *)s;
62*61046927SAndroid Build Coastguard Worker while (n--)
63*61046927SAndroid Build Coastguard Worker *xs++ = ui;
64*61046927SAndroid Build Coastguard Worker return s;
65*61046927SAndroid Build Coastguard Worker #endif
66*61046927SAndroid Build Coastguard Worker
67*61046927SAndroid Build Coastguard Worker }
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