1 #ifndef _FILTER_BYTECODE_H
2 #define _FILTER_BYTECODE_H
7 * LTTng filter bytecode
9 * Copyright 2012 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
11 * This library is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU Lesser General Public License, version 2.1 only,
13 * as published by the Free Software Foundation.
15 * This library is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
20 * You should have received a copy of the GNU Lesser General Public License
21 * along with this library; if not, write to the Free Software Foundation,
22 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
25 #include <common/sessiond-comm/sessiond-comm.h>
26 #include <common/macros.h>
28 #include "filter-ast.h"
31 * offsets are absolute from start of bytecode.
35 /* Initially, symbol offset. After link, field offset. */
44 struct get_index_u16
{
48 struct get_index_u64
{
52 struct literal_numeric
{
56 struct literal_double
{
60 struct literal_string
{
65 FILTER_OP_UNKNOWN
= 0,
75 FILTER_OP_BIT_RSHIFT
= 7,
76 FILTER_OP_BIT_LSHIFT
= 8,
77 FILTER_OP_BIT_AND
= 9,
78 FILTER_OP_BIT_OR
= 10,
79 FILTER_OP_BIT_XOR
= 11,
81 /* binary comparators */
89 /* string binary comparator: apply to */
90 FILTER_OP_EQ_STRING
= 18,
91 FILTER_OP_NE_STRING
= 19,
92 FILTER_OP_GT_STRING
= 20,
93 FILTER_OP_LT_STRING
= 21,
94 FILTER_OP_GE_STRING
= 22,
95 FILTER_OP_LE_STRING
= 23,
97 /* s64 binary comparator */
98 FILTER_OP_EQ_S64
= 24,
99 FILTER_OP_NE_S64
= 25,
100 FILTER_OP_GT_S64
= 26,
101 FILTER_OP_LT_S64
= 27,
102 FILTER_OP_GE_S64
= 28,
103 FILTER_OP_LE_S64
= 29,
105 /* double binary comparator */
106 FILTER_OP_EQ_DOUBLE
= 30,
107 FILTER_OP_NE_DOUBLE
= 31,
108 FILTER_OP_GT_DOUBLE
= 32,
109 FILTER_OP_LT_DOUBLE
= 33,
110 FILTER_OP_GE_DOUBLE
= 34,
111 FILTER_OP_LE_DOUBLE
= 35,
113 /* Mixed S64-double binary comparators */
114 FILTER_OP_EQ_DOUBLE_S64
= 36,
115 FILTER_OP_NE_DOUBLE_S64
= 37,
116 FILTER_OP_GT_DOUBLE_S64
= 38,
117 FILTER_OP_LT_DOUBLE_S64
= 39,
118 FILTER_OP_GE_DOUBLE_S64
= 40,
119 FILTER_OP_LE_DOUBLE_S64
= 41,
121 FILTER_OP_EQ_S64_DOUBLE
= 42,
122 FILTER_OP_NE_S64_DOUBLE
= 43,
123 FILTER_OP_GT_S64_DOUBLE
= 44,
124 FILTER_OP_LT_S64_DOUBLE
= 45,
125 FILTER_OP_GE_S64_DOUBLE
= 46,
126 FILTER_OP_LE_S64_DOUBLE
= 47,
129 FILTER_OP_UNARY_PLUS
= 48,
130 FILTER_OP_UNARY_MINUS
= 49,
131 FILTER_OP_UNARY_NOT
= 50,
132 FILTER_OP_UNARY_PLUS_S64
= 51,
133 FILTER_OP_UNARY_MINUS_S64
= 52,
134 FILTER_OP_UNARY_NOT_S64
= 53,
135 FILTER_OP_UNARY_PLUS_DOUBLE
= 54,
136 FILTER_OP_UNARY_MINUS_DOUBLE
= 55,
137 FILTER_OP_UNARY_NOT_DOUBLE
= 56,
144 FILTER_OP_LOAD_FIELD_REF
= 59,
145 FILTER_OP_LOAD_FIELD_REF_STRING
= 60,
146 FILTER_OP_LOAD_FIELD_REF_SEQUENCE
= 61,
147 FILTER_OP_LOAD_FIELD_REF_S64
= 62,
148 FILTER_OP_LOAD_FIELD_REF_DOUBLE
= 63,
150 /* load immediate from operand */
151 FILTER_OP_LOAD_STRING
= 64,
152 FILTER_OP_LOAD_S64
= 65,
153 FILTER_OP_LOAD_DOUBLE
= 66,
156 FILTER_OP_CAST_TO_S64
= 67,
157 FILTER_OP_CAST_DOUBLE_TO_S64
= 68,
158 FILTER_OP_CAST_NOP
= 69,
160 /* get context ref */
161 FILTER_OP_GET_CONTEXT_REF
= 70,
162 FILTER_OP_GET_CONTEXT_REF_STRING
= 71,
163 FILTER_OP_GET_CONTEXT_REF_S64
= 72,
164 FILTER_OP_GET_CONTEXT_REF_DOUBLE
= 73,
166 /* load userspace field ref */
167 FILTER_OP_LOAD_FIELD_REF_USER_STRING
= 74,
168 FILTER_OP_LOAD_FIELD_REF_USER_SEQUENCE
= 75,
171 * load immediate star globbing pattern (literal string)
174 FILTER_OP_LOAD_STAR_GLOB_STRING
= 76,
176 /* globbing pattern binary operator: apply to */
177 FILTER_OP_EQ_STAR_GLOB_STRING
= 77,
178 FILTER_OP_NE_STAR_GLOB_STRING
= 78,
181 * Instructions for recursive traversal through composed types.
183 FILTER_OP_GET_CONTEXT_ROOT
= 79,
184 FILTER_OP_GET_APP_CONTEXT_ROOT
= 80,
185 FILTER_OP_GET_PAYLOAD_ROOT
= 81,
187 FILTER_OP_GET_SYMBOL
= 82,
188 FILTER_OP_GET_SYMBOL_FIELD
= 83,
189 FILTER_OP_GET_INDEX_U16
= 84,
190 FILTER_OP_GET_INDEX_U64
= 85,
192 FILTER_OP_LOAD_FIELD
= 86,
193 FILTER_OP_LOAD_FIELD_S8
= 87,
194 FILTER_OP_LOAD_FIELD_S16
= 88,
195 FILTER_OP_LOAD_FIELD_S32
= 89,
196 FILTER_OP_LOAD_FIELD_S64
= 90,
197 FILTER_OP_LOAD_FIELD_U8
= 91,
198 FILTER_OP_LOAD_FIELD_U16
= 92,
199 FILTER_OP_LOAD_FIELD_U32
= 93,
200 FILTER_OP_LOAD_FIELD_U64
= 94,
201 FILTER_OP_LOAD_FIELD_STRING
= 95,
202 FILTER_OP_LOAD_FIELD_SEQUENCE
= 96,
203 FILTER_OP_LOAD_FIELD_DOUBLE
= 97,
205 FILTER_OP_UNARY_BIT_NOT
= 98,
207 FILTER_OP_RETURN_S64
= 99,
212 typedef uint8_t filter_opcode_t
;
217 /* data to load. Size known by enum filter_opcode and null-term char. */
228 /* skip_offset is absolute from start of bytecode */
231 uint16_t skip_offset
; /* bytecode insn, if skip second test */
242 struct lttng_filter_bytecode_alloc
{
244 struct lttng_filter_bytecode b
;
248 unsigned int bytecode_get_len(struct lttng_filter_bytecode
*bytecode
)
250 return bytecode
->len
;
253 #endif /* _FILTER_BYTECODE_H */