1 | /* |
2 | * Copyright (c) 2015-2016, Intel Corporation |
3 | * |
4 | * Redistribution and use in source and binary forms, with or without |
5 | * modification, are permitted provided that the following conditions are met: |
6 | * |
7 | * * Redistributions of source code must retain the above copyright notice, |
8 | * this list of conditions and the following disclaimer. |
9 | * * Redistributions in binary form must reproduce the above copyright |
10 | * notice, this list of conditions and the following disclaimer in the |
11 | * documentation and/or other materials provided with the distribution. |
12 | * * Neither the name of Intel Corporation nor the names of its contributors |
13 | * may be used to endorse or promote products derived from this software |
14 | * without specific prior written permission. |
15 | * |
16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
20 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
26 | * POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
28 | |
29 | /** \file |
30 | * \brief Runtime context structures (NFAContext128 and friends) for the NFA. |
31 | */ |
32 | |
33 | #ifndef LIMEX_CONTEXT_H |
34 | #define LIMEX_CONTEXT_H |
35 | |
36 | #include "ue2common.h" |
37 | #include "callback.h" |
38 | #include "util/simd_utils.h" // for m128 etc |
39 | |
40 | // Runtime context structures. |
41 | |
42 | /* Note: The size of the context structures may vary from platform to platform |
43 | * (notably, for the Limex64 structure). As a result, information based on the |
44 | * size and other detail of these structures should not be written into the |
45 | * bytecode -- really, the details of the structure should not be accessed by |
46 | * the ue2 compile side at all. |
47 | */ |
48 | #ifdef __cplusplus |
49 | #error ue2 runtime only file |
50 | #endif |
51 | |
52 | /* cached_estate/esucc etc... |
53 | * |
54 | * If the exception state matches the cached_estate we will apply |
55 | * the or in the cached_esucc to the successor states rather than processing |
56 | * the exceptions. |
57 | * |
58 | * If the current exception state is a superset of the cached_estate, the |
59 | * cache is NOT used at all. |
60 | * |
61 | * The cache is updated when we see a different cacheable estate. |
62 | */ |
63 | |
64 | #define GEN_CONTEXT_STRUCT(nsize, ntype) \ |
65 | struct ALIGN_CL_DIRECTIVE NFAContext##nsize { \ |
66 | ntype s; /**< state bitvector (on entry/exit) */ \ |
67 | ntype local_succ; /**< used by exception handling for large models */ \ |
68 | ntype cached_estate; /* inited to 0 */ \ |
69 | ntype cached_esucc; \ |
70 | char cached_br; /**< cached_estate contains a br state */ \ |
71 | const ReportID *cached_reports; \ |
72 | union RepeatControl *repeat_ctrl; \ |
73 | char *repeat_state; \ |
74 | NfaCallback callback; \ |
75 | void *context; \ |
76 | }; |
77 | |
78 | GEN_CONTEXT_STRUCT(32, u32) |
79 | #ifdef ARCH_64_BIT |
80 | GEN_CONTEXT_STRUCT(64, u64a) |
81 | #else |
82 | GEN_CONTEXT_STRUCT(64, m128) |
83 | #endif |
84 | GEN_CONTEXT_STRUCT(128, m128) |
85 | GEN_CONTEXT_STRUCT(256, m256) |
86 | GEN_CONTEXT_STRUCT(384, m384) |
87 | GEN_CONTEXT_STRUCT(512, m512) |
88 | |
89 | #undef GEN_CONTEXT_STRUCT |
90 | |
91 | #endif |
92 | |