1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
/*
* Copyright (c) 2015-2020, Intel Corporation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Intel Corporation nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/** \file
* \brief Runtime code for hs_database manipulation.
*/
#ifndef DATABASE_H_D467FD6F343DDE
#define DATABASE_H_D467FD6F343DDE
#ifdef __cplusplus
extern "C"
{
#endif
#include "hs_compile.h" // for HS_MODE_ flags
#include "hs_version.h"
#include "ue2common.h"
#include "util/arch.h"
#define HS_DB_VERSION HS_VERSION_32BIT
#define HS_DB_MAGIC (0xdbdbdbdbU)
// Values in here cannot (easily) change - add new ones!
// CPU type is the low 6 bits (we can't need more than 64, surely!)
#define HS_PLATFORM_INTEL 1
#define HS_PLATFORM_CPU_MASK 0x3F
#define HS_PLATFORM_NOAVX2 (4<<13)
#define HS_PLATFORM_NOAVX512 (8<<13)
#define HS_PLATFORM_NOAVX512VBMI (0x10<<13)
/** \brief Platform features bitmask. */
typedef u64a platform_t;
static UNUSED
const platform_t hs_current_platform = {
#if !defined(HAVE_AVX2)
HS_PLATFORM_NOAVX2 |
#endif
#if !defined(HAVE_AVX512)
HS_PLATFORM_NOAVX512 |
#endif
#if !defined(HAVE_AVX512VBMI)
HS_PLATFORM_NOAVX512VBMI |
#endif
0,
};
static UNUSED
const platform_t hs_current_platform_no_avx2 = {
HS_PLATFORM_NOAVX2 |
HS_PLATFORM_NOAVX512 |
HS_PLATFORM_NOAVX512VBMI |
0,
};
static UNUSED
const platform_t hs_current_platform_no_avx512 = {
HS_PLATFORM_NOAVX512 |
HS_PLATFORM_NOAVX512VBMI |
0,
};
static UNUSED
const platform_t hs_current_platform_no_avx512vbmi = {
HS_PLATFORM_NOAVX512VBMI |
0,
};
/*
* a header to enclose the actual bytecode - useful for keeping info about the
* compiled data.
*/
struct hs_database {
u32 magic;
u32 version;
u32 length;
u64a platform;
u32 crc32;
u32 reserved0;
u32 reserved1;
u32 bytecode; // offset relative to db start
u32 padding[16];
char bytes[];
};
static really_inline
const void *hs_get_bytecode(const struct hs_database *db) {
return ((const char *)db + db->bytecode);
}
/**
* Cheap database sanity checks used in block mode scan calls and streaming
* mode open calls.
*/
static really_inline
hs_error_t validDatabase(const hs_database_t *db) {
if (!db || db->magic != HS_DB_MAGIC) {
return HS_INVALID;
}
if (db->version != HS_DB_VERSION) {
return HS_DB_VERSION_ERROR;
}
return HS_SUCCESS;
}
hs_error_t dbIsValid(const struct hs_database *db);
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* DATABASE_H_D467FD6F343DDE */
|
