-/*
+/* SPDX-License-Identifier: MIT
+ *
* lttng-filter-specialize.c
*
* LTTng modules filter code specializer.
*
* Copyright (C) 2010-2016 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.
*/
#include <linux/slab.h>
#include <lttng-filter.h>
#include "lib/align.h"
+#include <wrapper/compiler_attributes.h>
+
static ssize_t bytecode_reserve_data(struct bytecode_runtime *runtime,
size_t align, size_t len)
{
case OBJECT_TYPE_S8:
dbg_printk("op load field s8\n");
stack_top->type = REG_S64;
- if (!stack_top->load.rev_bo)
+ if (!stack_top->load.user)
insn->op = FILTER_OP_LOAD_FIELD_S8;
break;
case OBJECT_TYPE_S16:
dbg_printk("op load field s16\n");
stack_top->type = REG_S64;
- if (!stack_top->load.rev_bo)
+ if (!stack_top->load.rev_bo && !stack_top->load.user)
insn->op = FILTER_OP_LOAD_FIELD_S16;
break;
case OBJECT_TYPE_S32:
dbg_printk("op load field s32\n");
stack_top->type = REG_S64;
- if (!stack_top->load.rev_bo)
+ if (!stack_top->load.rev_bo && !stack_top->load.user)
insn->op = FILTER_OP_LOAD_FIELD_S32;
break;
case OBJECT_TYPE_S64:
dbg_printk("op load field s64\n");
stack_top->type = REG_S64;
- if (!stack_top->load.rev_bo)
+ if (!stack_top->load.rev_bo && !stack_top->load.user)
insn->op = FILTER_OP_LOAD_FIELD_S64;
break;
case OBJECT_TYPE_U8:
dbg_printk("op load field u8\n");
stack_top->type = REG_S64;
- insn->op = FILTER_OP_LOAD_FIELD_U8;
+ if (!stack_top->load.user)
+ insn->op = FILTER_OP_LOAD_FIELD_U8;
break;
case OBJECT_TYPE_U16:
dbg_printk("op load field u16\n");
stack_top->type = REG_S64;
- if (!stack_top->load.rev_bo)
+ if (!stack_top->load.rev_bo && !stack_top->load.user)
insn->op = FILTER_OP_LOAD_FIELD_U16;
break;
case OBJECT_TYPE_U32:
dbg_printk("op load field u32\n");
stack_top->type = REG_S64;
- if (!stack_top->load.rev_bo)
+ if (!stack_top->load.rev_bo && !stack_top->load.user)
insn->op = FILTER_OP_LOAD_FIELD_U32;
break;
case OBJECT_TYPE_U64:
dbg_printk("op load field u64\n");
stack_top->type = REG_S64;
- if (!stack_top->load.rev_bo)
+ if (!stack_top->load.rev_bo && !stack_top->load.user)
insn->op = FILTER_OP_LOAD_FIELD_U64;
break;
case OBJECT_TYPE_DOUBLE:
case OBJECT_TYPE_STRING:
dbg_printk("op load field string\n");
stack_top->type = REG_STRING;
- insn->op = FILTER_OP_LOAD_FIELD_STRING;
+ if (!stack_top->load.user)
+ insn->op = FILTER_OP_LOAD_FIELD_STRING;
break;
case OBJECT_TYPE_STRING_SEQUENCE:
dbg_printk("op load field string sequence\n");
stack_top->type = REG_STRING;
- insn->op = FILTER_OP_LOAD_FIELD_SEQUENCE;
+ if (!stack_top->load.user)
+ insn->op = FILTER_OP_LOAD_FIELD_SEQUENCE;
break;
case OBJECT_TYPE_DYNAMIC:
ret = -EINVAL;
gid.array_len = num_elems * (elem_len / CHAR_BIT);
gid.elem.type = stack_top->load.object_type;
gid.elem.len = elem_len;
- if (field->type.u.array.elem_type.u.basic.integer.reverse_byte_order)
- gid.elem.rev_bo = true;
- stack_top->load.rev_bo = gid.elem.rev_bo;
+ stack_top->load.rev_bo = gid.elem.rev_bo = field->type.u.array.elem_type.u.basic.integer.reverse_byte_order;
+ stack_top->load.user = gid.elem.user = field->type.u.array.elem_type.u.basic.integer.user;
break;
}
case OBJECT_TYPE_SEQUENCE:
gid.offset = index * (elem_len / CHAR_BIT);
gid.elem.type = stack_top->load.object_type;
gid.elem.len = elem_len;
- if (field->type.u.sequence.elem_type.u.basic.integer.reverse_byte_order)
- gid.elem.rev_bo = true;
- stack_top->load.rev_bo = gid.elem.rev_bo;
+ stack_top->load.rev_bo = gid.elem.rev_bo = field->type.u.sequence.elem_type.u.basic.integer.reverse_byte_order;
+ stack_top->load.user = gid.elem.user = field->type.u.sequence.elem_type.u.basic.integer.user;
break;
}
case OBJECT_TYPE_STRUCT:
/* Only generated by the specialize phase. */
- case OBJECT_TYPE_VARIANT: /* Fall-through */
+ case OBJECT_TYPE_VARIANT:
+ lttng_fallthrough;
default:
printk(KERN_WARNING "Unexpected get index type %d",
(int) stack_top->load.object_type);
load->object_type = OBJECT_TYPE_S64;
else
load->object_type = OBJECT_TYPE_U64;
- load->rev_bo = false;
+ load->rev_bo = field->type.u.basic.integer.reverse_byte_order;
+ load->user = field->type.u.basic.integer.user;
break;
case atype_enum:
{
load->object_type = OBJECT_TYPE_S64;
else
load->object_type = OBJECT_TYPE_U64;
- load->rev_bo = false;
+ load->rev_bo = itype->reverse_byte_order;
+ load->user = itype->user;
break;
}
case atype_array:
}
if (is_context) {
load->object_type = OBJECT_TYPE_STRING;
+ load->user = field->type.u.array.elem_type.u.basic.integer.user;
} else {
if (field->type.u.array.elem_type.u.basic.integer.encoding == lttng_encode_none) {
load->object_type = OBJECT_TYPE_ARRAY;
load->field = field;
} else {
load->object_type = OBJECT_TYPE_STRING_SEQUENCE;
+ load->user = field->type.u.array.elem_type.u.basic.integer.user;
}
}
break;
}
if (is_context) {
load->object_type = OBJECT_TYPE_STRING;
+ load->user = field->type.u.sequence.elem_type.u.basic.integer.user;
} else {
if (field->type.u.sequence.elem_type.u.basic.integer.encoding == lttng_encode_none) {
load->object_type = OBJECT_TYPE_SEQUENCE;
load->field = field;
} else {
load->object_type = OBJECT_TYPE_STRING_SEQUENCE;
+ load->user = field->type.u.sequence.elem_type.u.basic.integer.user;
}
}
break;
return -EINVAL;
case atype_string:
load->object_type = OBJECT_TYPE_STRING;
+ load->user = field->type.u.basic.string.user;
break;
case atype_struct:
printk(KERN_WARNING "Structure type cannot be loaded.\n");
memset(&gid, 0, sizeof(gid));
gid.ctx_index = idx;
gid.elem.type = load->object_type;
+ gid.elem.rev_bo = load->rev_bo;
+ gid.elem.user = load->user;
data_offset = bytecode_push_data(runtime, &gid,
__alignof__(gid), sizeof(gid));
if (data_offset < 0) {
memset(&gid, 0, sizeof(gid));
gid.offset = field_offset;
gid.elem.type = load->object_type;
+ gid.elem.rev_bo = load->rev_bo;
+ gid.elem.user = load->user;
data_offset = bytecode_push_data(runtime, &gid,
__alignof__(gid), sizeof(gid));
if (data_offset < 0) {
goto end;
case FILTER_OP_RETURN:
+ case FILTER_OP_RETURN_S64:
ret = 0;
goto end;
case FILTER_OP_MOD:
case FILTER_OP_PLUS:
case FILTER_OP_MINUS:
- case FILTER_OP_RSHIFT:
- case FILTER_OP_LSHIFT:
printk(KERN_WARNING "unsupported bytecode op %u\n",
(unsigned int) *(filter_opcode_t *) pc);
ret = -EINVAL;
case FILTER_OP_LT_S64_DOUBLE:
case FILTER_OP_GE_S64_DOUBLE:
case FILTER_OP_LE_S64_DOUBLE:
+ case FILTER_OP_BIT_RSHIFT:
+ case FILTER_OP_BIT_LSHIFT:
case FILTER_OP_BIT_AND:
case FILTER_OP_BIT_OR:
case FILTER_OP_BIT_XOR:
break;
}
+ case FILTER_OP_UNARY_BIT_NOT:
+ {
+ /* Pop 1, push 1 */
+ next_pc += sizeof(struct unary_op);
+ break;
+ }
+
case FILTER_OP_UNARY_PLUS_S64:
case FILTER_OP_UNARY_MINUS_S64:
case FILTER_OP_UNARY_NOT_S64:
projects / lttng-modules.git / blobdiff