+++ /dev/null
-#ifndef _FILTER_BYTECODE_H
-#define _FILTER_BYTECODE_H
-
-/*
- * filter-bytecode.h
- *
- * LTTng filter bytecode
- *
- * Copyright 2012-2016 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-/*
- * offsets are absolute from start of bytecode.
- */
-
-struct field_ref {
- /* Initially, symbol offset. After link, field offset. */
- uint16_t offset;
-} __attribute__((packed));
-
-struct literal_numeric {
- int64_t v;
-} __attribute__((packed));
-
-struct literal_double {
- double v;
-} __attribute__((packed));
-
-struct literal_string {
- char string[0];
-} __attribute__((packed));
-
-enum filter_op {
- FILTER_OP_UNKNOWN = 0,
-
- FILTER_OP_RETURN,
-
- /* binary */
- FILTER_OP_MUL,
- FILTER_OP_DIV,
- FILTER_OP_MOD,
- FILTER_OP_PLUS,
- FILTER_OP_MINUS,
- FILTER_OP_RSHIFT,
- FILTER_OP_LSHIFT,
- FILTER_OP_BIN_AND,
- FILTER_OP_BIN_OR,
- FILTER_OP_BIN_XOR,
-
- /* binary comparators */
- FILTER_OP_EQ,
- FILTER_OP_NE,
- FILTER_OP_GT,
- FILTER_OP_LT,
- FILTER_OP_GE,
- FILTER_OP_LE,
-
- /* string binary comparator */
- FILTER_OP_EQ_STRING,
- FILTER_OP_NE_STRING,
- FILTER_OP_GT_STRING,
- FILTER_OP_LT_STRING,
- FILTER_OP_GE_STRING,
- FILTER_OP_LE_STRING,
-
- /* s64 binary comparator */
- FILTER_OP_EQ_S64,
- FILTER_OP_NE_S64,
- FILTER_OP_GT_S64,
- FILTER_OP_LT_S64,
- FILTER_OP_GE_S64,
- FILTER_OP_LE_S64,
-
- /* double binary comparator */
- FILTER_OP_EQ_DOUBLE,
- FILTER_OP_NE_DOUBLE,
- FILTER_OP_GT_DOUBLE,
- FILTER_OP_LT_DOUBLE,
- FILTER_OP_GE_DOUBLE,
- FILTER_OP_LE_DOUBLE,
-
- /* Mixed S64-double binary comparators */
- FILTER_OP_EQ_DOUBLE_S64,
- FILTER_OP_NE_DOUBLE_S64,
- FILTER_OP_GT_DOUBLE_S64,
- FILTER_OP_LT_DOUBLE_S64,
- FILTER_OP_GE_DOUBLE_S64,
- FILTER_OP_LE_DOUBLE_S64,
-
- FILTER_OP_EQ_S64_DOUBLE,
- FILTER_OP_NE_S64_DOUBLE,
- FILTER_OP_GT_S64_DOUBLE,
- FILTER_OP_LT_S64_DOUBLE,
- FILTER_OP_GE_S64_DOUBLE,
- FILTER_OP_LE_S64_DOUBLE,
-
- /* unary */
- FILTER_OP_UNARY_PLUS,
- FILTER_OP_UNARY_MINUS,
- FILTER_OP_UNARY_NOT,
- FILTER_OP_UNARY_PLUS_S64,
- FILTER_OP_UNARY_MINUS_S64,
- FILTER_OP_UNARY_NOT_S64,
- FILTER_OP_UNARY_PLUS_DOUBLE,
- FILTER_OP_UNARY_MINUS_DOUBLE,
- FILTER_OP_UNARY_NOT_DOUBLE,
-
- /* logical */
- FILTER_OP_AND,
- FILTER_OP_OR,
-
- /* load field ref */
- FILTER_OP_LOAD_FIELD_REF,
- FILTER_OP_LOAD_FIELD_REF_STRING,
- FILTER_OP_LOAD_FIELD_REF_SEQUENCE,
- FILTER_OP_LOAD_FIELD_REF_S64,
- FILTER_OP_LOAD_FIELD_REF_DOUBLE,
-
- /* load immediate from operand */
- FILTER_OP_LOAD_STRING,
- FILTER_OP_LOAD_S64,
- FILTER_OP_LOAD_DOUBLE,
-
- /* cast */
- FILTER_OP_CAST_TO_S64,
- FILTER_OP_CAST_DOUBLE_TO_S64,
- FILTER_OP_CAST_NOP,
-
- /* get context ref */
- FILTER_OP_GET_CONTEXT_REF,
- FILTER_OP_GET_CONTEXT_REF_STRING,
- FILTER_OP_GET_CONTEXT_REF_S64,
- FILTER_OP_GET_CONTEXT_REF_DOUBLE,
-
- /* load userspace field ref */
- FILTER_OP_LOAD_FIELD_REF_USER_STRING,
- FILTER_OP_LOAD_FIELD_REF_USER_SEQUENCE,
-
- NR_FILTER_OPS,
-};
-
-typedef uint8_t filter_opcode_t;
-
-struct load_op {
- filter_opcode_t op;
- char data[0];
- /* data to load. Size known by enum filter_opcode and null-term char. */
-} __attribute__((packed));
-
-struct binary_op {
- filter_opcode_t op;
-} __attribute__((packed));
-
-struct unary_op {
- filter_opcode_t op;
-} __attribute__((packed));
-
-/* skip_offset is absolute from start of bytecode */
-struct logical_op {
- filter_opcode_t op;
- uint16_t skip_offset; /* bytecode insn, if skip second test */
-} __attribute__((packed));
-
-struct cast_op {
- filter_opcode_t op;
-} __attribute__((packed));
-
-struct return_op {
- filter_opcode_t op;
-} __attribute__((packed));
-
-#endif /* _FILTER_BYTECODE_H */
projects / lttng-modules.git / blobdiff