1 #ifndef _FILTER_BYTECODE_H
2 #define _FILTER_BYTECODE_H
7 * LTTng filter bytecode
9 * Copyright 2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
11 * SPDX-License-Identifier: LGPL-2.1-only
15 #include <common/sessiond-comm/sessiond-comm.h>
16 #include <common/macros.h>
18 #include "filter-ast.h"
21 * offsets are absolute from start of bytecode.
25 /* Initially, symbol offset. After link, field offset. */
34 struct get_index_u16
{
38 struct get_index_u64
{
42 struct literal_numeric
{
46 struct literal_double
{
50 struct literal_string
{
55 FILTER_OP_UNKNOWN
= 0,
65 FILTER_OP_BIT_RSHIFT
= 7,
66 FILTER_OP_BIT_LSHIFT
= 8,
67 FILTER_OP_BIT_AND
= 9,
68 FILTER_OP_BIT_OR
= 10,
69 FILTER_OP_BIT_XOR
= 11,
71 /* binary comparators */
79 /* string binary comparator: apply to */
80 FILTER_OP_EQ_STRING
= 18,
81 FILTER_OP_NE_STRING
= 19,
82 FILTER_OP_GT_STRING
= 20,
83 FILTER_OP_LT_STRING
= 21,
84 FILTER_OP_GE_STRING
= 22,
85 FILTER_OP_LE_STRING
= 23,
87 /* s64 binary comparator */
88 FILTER_OP_EQ_S64
= 24,
89 FILTER_OP_NE_S64
= 25,
90 FILTER_OP_GT_S64
= 26,
91 FILTER_OP_LT_S64
= 27,
92 FILTER_OP_GE_S64
= 28,
93 FILTER_OP_LE_S64
= 29,
95 /* double binary comparator */
96 FILTER_OP_EQ_DOUBLE
= 30,
97 FILTER_OP_NE_DOUBLE
= 31,
98 FILTER_OP_GT_DOUBLE
= 32,
99 FILTER_OP_LT_DOUBLE
= 33,
100 FILTER_OP_GE_DOUBLE
= 34,
101 FILTER_OP_LE_DOUBLE
= 35,
103 /* Mixed S64-double binary comparators */
104 FILTER_OP_EQ_DOUBLE_S64
= 36,
105 FILTER_OP_NE_DOUBLE_S64
= 37,
106 FILTER_OP_GT_DOUBLE_S64
= 38,
107 FILTER_OP_LT_DOUBLE_S64
= 39,
108 FILTER_OP_GE_DOUBLE_S64
= 40,
109 FILTER_OP_LE_DOUBLE_S64
= 41,
111 FILTER_OP_EQ_S64_DOUBLE
= 42,
112 FILTER_OP_NE_S64_DOUBLE
= 43,
113 FILTER_OP_GT_S64_DOUBLE
= 44,
114 FILTER_OP_LT_S64_DOUBLE
= 45,
115 FILTER_OP_GE_S64_DOUBLE
= 46,
116 FILTER_OP_LE_S64_DOUBLE
= 47,
119 FILTER_OP_UNARY_PLUS
= 48,
120 FILTER_OP_UNARY_MINUS
= 49,
121 FILTER_OP_UNARY_NOT
= 50,
122 FILTER_OP_UNARY_PLUS_S64
= 51,
123 FILTER_OP_UNARY_MINUS_S64
= 52,
124 FILTER_OP_UNARY_NOT_S64
= 53,
125 FILTER_OP_UNARY_PLUS_DOUBLE
= 54,
126 FILTER_OP_UNARY_MINUS_DOUBLE
= 55,
127 FILTER_OP_UNARY_NOT_DOUBLE
= 56,
134 FILTER_OP_LOAD_FIELD_REF
= 59,
135 FILTER_OP_LOAD_FIELD_REF_STRING
= 60,
136 FILTER_OP_LOAD_FIELD_REF_SEQUENCE
= 61,
137 FILTER_OP_LOAD_FIELD_REF_S64
= 62,
138 FILTER_OP_LOAD_FIELD_REF_DOUBLE
= 63,
140 /* load immediate from operand */
141 FILTER_OP_LOAD_STRING
= 64,
142 FILTER_OP_LOAD_S64
= 65,
143 FILTER_OP_LOAD_DOUBLE
= 66,
146 FILTER_OP_CAST_TO_S64
= 67,
147 FILTER_OP_CAST_DOUBLE_TO_S64
= 68,
148 FILTER_OP_CAST_NOP
= 69,
150 /* get context ref */
151 FILTER_OP_GET_CONTEXT_REF
= 70,
152 FILTER_OP_GET_CONTEXT_REF_STRING
= 71,
153 FILTER_OP_GET_CONTEXT_REF_S64
= 72,
154 FILTER_OP_GET_CONTEXT_REF_DOUBLE
= 73,
156 /* load userspace field ref */
157 FILTER_OP_LOAD_FIELD_REF_USER_STRING
= 74,
158 FILTER_OP_LOAD_FIELD_REF_USER_SEQUENCE
= 75,
161 * load immediate star globbing pattern (literal string)
164 FILTER_OP_LOAD_STAR_GLOB_STRING
= 76,
166 /* globbing pattern binary operator: apply to */
167 FILTER_OP_EQ_STAR_GLOB_STRING
= 77,
168 FILTER_OP_NE_STAR_GLOB_STRING
= 78,
171 * Instructions for recursive traversal through composed types.
173 FILTER_OP_GET_CONTEXT_ROOT
= 79,
174 FILTER_OP_GET_APP_CONTEXT_ROOT
= 80,
175 FILTER_OP_GET_PAYLOAD_ROOT
= 81,
177 FILTER_OP_GET_SYMBOL
= 82,
178 FILTER_OP_GET_SYMBOL_FIELD
= 83,
179 FILTER_OP_GET_INDEX_U16
= 84,
180 FILTER_OP_GET_INDEX_U64
= 85,
182 FILTER_OP_LOAD_FIELD
= 86,
183 FILTER_OP_LOAD_FIELD_S8
= 87,
184 FILTER_OP_LOAD_FIELD_S16
= 88,
185 FILTER_OP_LOAD_FIELD_S32
= 89,
186 FILTER_OP_LOAD_FIELD_S64
= 90,
187 FILTER_OP_LOAD_FIELD_U8
= 91,
188 FILTER_OP_LOAD_FIELD_U16
= 92,
189 FILTER_OP_LOAD_FIELD_U32
= 93,
190 FILTER_OP_LOAD_FIELD_U64
= 94,
191 FILTER_OP_LOAD_FIELD_STRING
= 95,
192 FILTER_OP_LOAD_FIELD_SEQUENCE
= 96,
193 FILTER_OP_LOAD_FIELD_DOUBLE
= 97,
195 FILTER_OP_UNARY_BIT_NOT
= 98,
197 FILTER_OP_RETURN_S64
= 99,
202 typedef uint8_t filter_opcode_t
;
207 /* data to load. Size known by enum filter_opcode and null-term char. */
218 /* skip_offset is absolute from start of bytecode */
221 uint16_t skip_offset
; /* bytecode insn, if skip second test */
232 struct lttng_filter_bytecode_alloc
{
234 struct lttng_filter_bytecode b
;
238 unsigned int bytecode_get_len(struct lttng_filter_bytecode
*bytecode
)
240 return bytecode
->len
;
243 #endif /* _FILTER_BYTECODE_H */