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>
27 #include "filter-ast.h"
30 * offsets are absolute from start of bytecode.
34 /* Initially, symbol offset. After link, field offset. */
38 struct literal_numeric
{
42 struct literal_double
{
46 struct literal_string
{
51 FILTER_OP_UNKNOWN
= 0,
63 FILTER_OP_BIN_AND
= 9,
64 FILTER_OP_BIN_OR
= 10,
65 FILTER_OP_BIN_XOR
= 11,
67 /* binary comparators */
75 /* string binary comparator */
76 FILTER_OP_EQ_STRING
= 18,
77 FILTER_OP_NE_STRING
= 19,
78 FILTER_OP_GT_STRING
= 20,
79 FILTER_OP_LT_STRING
= 21,
80 FILTER_OP_GE_STRING
= 22,
81 FILTER_OP_LE_STRING
= 23,
83 /* s64 binary comparator */
84 FILTER_OP_EQ_S64
= 24,
85 FILTER_OP_NE_S64
= 25,
86 FILTER_OP_GT_S64
= 26,
87 FILTER_OP_LT_S64
= 27,
88 FILTER_OP_GE_S64
= 28,
89 FILTER_OP_LE_S64
= 29,
91 /* double binary comparator */
92 FILTER_OP_EQ_DOUBLE
= 30,
93 FILTER_OP_NE_DOUBLE
= 31,
94 FILTER_OP_GT_DOUBLE
= 32,
95 FILTER_OP_LT_DOUBLE
= 33,
96 FILTER_OP_GE_DOUBLE
= 34,
97 FILTER_OP_LE_DOUBLE
= 35,
99 /* Mixed S64-double binary comparators */
100 FILTER_OP_EQ_DOUBLE_S64
= 36,
101 FILTER_OP_NE_DOUBLE_S64
= 37,
102 FILTER_OP_GT_DOUBLE_S64
= 38,
103 FILTER_OP_LT_DOUBLE_S64
= 39,
104 FILTER_OP_GE_DOUBLE_S64
= 40,
105 FILTER_OP_LE_DOUBLE_S64
= 41,
107 FILTER_OP_EQ_S64_DOUBLE
= 42,
108 FILTER_OP_NE_S64_DOUBLE
= 43,
109 FILTER_OP_GT_S64_DOUBLE
= 44,
110 FILTER_OP_LT_S64_DOUBLE
= 45,
111 FILTER_OP_GE_S64_DOUBLE
= 46,
112 FILTER_OP_LE_S64_DOUBLE
= 47,
115 FILTER_OP_UNARY_PLUS
= 48,
116 FILTER_OP_UNARY_MINUS
= 49,
117 FILTER_OP_UNARY_NOT
= 50,
118 FILTER_OP_UNARY_PLUS_S64
= 51,
119 FILTER_OP_UNARY_MINUS_S64
= 52,
120 FILTER_OP_UNARY_NOT_S64
= 53,
121 FILTER_OP_UNARY_PLUS_DOUBLE
= 54,
122 FILTER_OP_UNARY_MINUS_DOUBLE
= 55,
123 FILTER_OP_UNARY_NOT_DOUBLE
= 56,
130 FILTER_OP_LOAD_FIELD_REF
= 59,
131 FILTER_OP_LOAD_FIELD_REF_STRING
= 60,
132 FILTER_OP_LOAD_FIELD_REF_SEQUENCE
= 61,
133 FILTER_OP_LOAD_FIELD_REF_S64
= 62,
134 FILTER_OP_LOAD_FIELD_REF_DOUBLE
= 63,
136 /* load immediate from operand */
137 FILTER_OP_LOAD_STRING
= 64,
138 FILTER_OP_LOAD_S64
= 65,
139 FILTER_OP_LOAD_DOUBLE
= 66,
142 FILTER_OP_CAST_TO_S64
= 67,
143 FILTER_OP_CAST_DOUBLE_TO_S64
= 68,
144 FILTER_OP_CAST_NOP
= 69,
146 /* get context ref */
147 FILTER_OP_GET_CONTEXT_REF
= 70,
148 FILTER_OP_GET_CONTEXT_REF_STRING
= 71,
149 FILTER_OP_GET_CONTEXT_REF_S64
= 72,
150 FILTER_OP_GET_CONTEXT_REF_DOUBLE
= 73,
152 /* load userspace field ref */
153 FILTER_OP_LOAD_FIELD_REF_USER_STRING
= 74,
154 FILTER_OP_LOAD_FIELD_REF_USER_SEQUENCE
= 75,
159 typedef uint8_t filter_opcode_t
;
164 /* data to load. Size known by enum filter_opcode and null-term char. */
175 /* skip_offset is absolute from start of bytecode */
178 uint16_t skip_offset
; /* bytecode insn, if skip second test */
189 struct lttng_filter_bytecode_alloc
{
191 struct lttng_filter_bytecode b
;
195 unsigned int bytecode_get_len(struct lttng_filter_bytecode
*bytecode
)
197 return bytecode
->len
;
200 #endif /* _FILTER_BYTECODE_H */