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 <lttng/ust-abi.h>
28 * offsets are absolute from start of bytecode.
31 enum filter_register
{
38 /* Initially, symbol offset. After link, field offset. */
40 } __attribute__((packed
));
42 struct literal_numeric
{
44 } __attribute__((packed
));
46 struct literal_double
{
48 } __attribute__((packed
));
50 struct literal_string
{
52 } __attribute__((packed
));
55 FILTER_OP_UNKNOWN
= 0,
71 /* binary comparators */
79 /* string binary comparator */
87 /* s64 binary comparator */
95 /* double binary comparator */
104 FILTER_OP_UNARY_PLUS
,
105 FILTER_OP_UNARY_MINUS
,
107 FILTER_OP_UNARY_PLUS_S64
,
108 FILTER_OP_UNARY_MINUS_S64
,
109 FILTER_OP_UNARY_NOT_S64
,
110 FILTER_OP_UNARY_PLUS_DOUBLE
,
111 FILTER_OP_UNARY_MINUS_DOUBLE
,
112 FILTER_OP_UNARY_NOT_DOUBLE
,
119 FILTER_OP_LOAD_FIELD_REF
,
120 FILTER_OP_LOAD_FIELD_REF_STRING
,
121 FILTER_OP_LOAD_FIELD_REF_SEQUENCE
,
122 FILTER_OP_LOAD_FIELD_REF_S64
,
123 FILTER_OP_LOAD_FIELD_REF_DOUBLE
,
125 FILTER_OP_LOAD_STRING
,
127 FILTER_OP_LOAD_DOUBLE
,
132 typedef uint8_t filter_opcode_t
;
136 uint8_t reg
; /* enum filter_register */
138 /* data to load. Size known by enum filter_opcode and null-term char. */
139 } __attribute__((packed
));
143 } __attribute__((packed
));
147 uint8_t reg
; /* enum filter_register */
148 } __attribute__((packed
));
150 /* skip_offset is absolute from start of bytecode */
153 uint16_t skip_offset
; /* bytecode insn, if skip second test */
154 } __attribute__((packed
));
158 } __attribute__((packed
));
160 #endif /* _FILTER_BYTECODE_H */