/*
- * lttng-bytecode-interpreter.c
- *
- * LTTng UST bytecode interpreter.
+ * SPDX-License-Identifier: MIT
*
* 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.
+ * LTTng UST bytecode interpreter.
*/
#define _LGPL_SOURCE
#include <stddef.h>
#include <stdint.h>
-#include <urcu-pointer.h>
-#include <byteswap.h>
+#include <lttng/urcu/pointer.h>
#include <lttng/ust-endian.h>
#include <lttng/ust-events.h>
+#include "ust-events-internal.h"
#include "lttng-bytecode.h"
#include "string-utils.h"
return LTTNG_INTERPRETER_DISCARD;
}
+uint64_t lttng_bytecode_capture_interpret_false(void *capture_data,
+ const char *capture_stack_data,
+ struct lttng_interpreter_output *output)
+{
+ return LTTNG_INTERPRETER_DISCARD;
+}
+
#ifdef INTERPRETER_USE_SWITCH
/*
for (pc = next_pc = start_pc; pc - start_pc < bytecode->len; \
pc = next_pc) { \
dbg_printf("Executing op %s (%u)\n", \
- print_op((unsigned int) *(bytecode_opcode_t *) pc), \
+ lttng_bytecode_print_op((unsigned int) *(bytecode_opcode_t *) pc), \
(unsigned int) *(bytecode_opcode_t *) pc); \
switch (*(bytecode_opcode_t *) pc) {
{
struct lttng_ctx_field *ctx_field;
- struct lttng_event_field *field;
+ struct lttng_ust_event_field *field;
struct lttng_ctx_value v;
ctx_field = &ctx->fields[idx];
ptr->ptr = &ptr->u.u64;
}
break;
- case atype_enum: /* Fall-through */
case atype_enum_nestable:
{
const struct lttng_integer_type *itype;
- if (field->type.atype == atype_enum) {
- itype = &field->type.u.legacy.basic.enumeration.container_type;
- } else {
- itype = &field->type.u.enum_nestable.container_type->u.integer;
- }
+ itype = &field->type.u.enum_nestable.container_type->u.integer;
ctx_field->get_value(ctx_field, &v);
if (itype->signedness) {
- ptr->object_type = OBJECT_TYPE_S64;
+ ptr->object_type = OBJECT_TYPE_SIGNED_ENUM;
ptr->u.s64 = v.u.s64;
ptr->ptr = &ptr->u.s64;
} else {
- ptr->object_type = OBJECT_TYPE_U64;
+ ptr->object_type = OBJECT_TYPE_UNSIGNED_ENUM;
ptr->u.u64 = v.u.s64; /* Cast. */
ptr->ptr = &ptr->u.u64;
}
break;
}
- case atype_array:
- if (field->type.u.legacy.array.elem_type.atype != atype_integer) {
- ERR("Array nesting only supports integer types.");
- return -EINVAL;
- }
- if (field->type.u.legacy.array.elem_type.u.basic.integer.encoding == lttng_encode_none) {
- ERR("Only string arrays are supported for contexts.");
- return -EINVAL;
- }
- ptr->object_type = OBJECT_TYPE_STRING;
- ctx_field->get_value(ctx_field, &v);
- ptr->ptr = v.u.str;
- break;
case atype_array_nestable:
if (field->type.u.array_nestable.elem_type->atype != atype_integer) {
ERR("Array nesting only supports integer types.");
ctx_field->get_value(ctx_field, &v);
ptr->ptr = v.u.str;
break;
- case atype_sequence:
- if (field->type.u.legacy.sequence.elem_type.atype != atype_integer) {
- ERR("Sequence nesting only supports integer types.");
- return -EINVAL;
- }
- if (field->type.u.legacy.sequence.elem_type.u.basic.integer.encoding == lttng_encode_none) {
- ERR("Only string sequences are supported for contexts.");
- return -EINVAL;
- }
- ptr->object_type = OBJECT_TYPE_STRING;
- ctx_field->get_value(ctx_field, &v);
- ptr->ptr = v.u.str;
- break;
case atype_sequence_nestable:
if (field->type.u.sequence_nestable.elem_type->atype != atype_integer) {
ERR("Sequence nesting only supports integer types.");
switch (v.sel) {
case LTTNG_UST_DYNAMIC_TYPE_NONE:
return -EINVAL;
+ case LTTNG_UST_DYNAMIC_TYPE_U8:
+ case LTTNG_UST_DYNAMIC_TYPE_U16:
+ case LTTNG_UST_DYNAMIC_TYPE_U32:
+ case LTTNG_UST_DYNAMIC_TYPE_U64:
+ ptr->object_type = OBJECT_TYPE_U64;
+ ptr->u.u64 = v.u.u64;
+ ptr->ptr = &ptr->u.u64;
+ dbg_printf("context get index dynamic u64 %" PRIi64 "\n", ptr->u.u64);
+ break;
+ case LTTNG_UST_DYNAMIC_TYPE_S8:
+ case LTTNG_UST_DYNAMIC_TYPE_S16:
+ case LTTNG_UST_DYNAMIC_TYPE_S32:
case LTTNG_UST_DYNAMIC_TYPE_S64:
ptr->object_type = OBJECT_TYPE_S64;
ptr->u.s64 = v.u.s64;
ptr->ptr = &ptr->u.s64;
dbg_printf("context get index dynamic s64 %" PRIi64 "\n", ptr->u.s64);
break;
+ case LTTNG_UST_DYNAMIC_TYPE_FLOAT:
case LTTNG_UST_DYNAMIC_TYPE_DOUBLE:
ptr->object_type = OBJECT_TYPE_DOUBLE;
ptr->u.d = v.u.d;
return -EINVAL;
}
break;
- case atype_struct:
- ERR("Structure type cannot be loaded.");
- return -EINVAL;
default:
ERR("Unknown type: %d", (int) field->type.atype);
return -EINVAL;
stack_top->u.ptr.ptr = ptr;
stack_top->u.ptr.object_type = gid->elem.type;
stack_top->u.ptr.rev_bo = gid->elem.rev_bo;
- assert(stack_top->u.ptr.field->type.atype == atype_array ||
- stack_top->u.ptr.field->type.atype == atype_array_nestable);
+ assert(stack_top->u.ptr.field->type.atype == atype_array_nestable);
stack_top->u.ptr.field = NULL;
break;
}
stack_top->u.ptr.ptr = ptr;
stack_top->u.ptr.object_type = gid->elem.type;
stack_top->u.ptr.rev_bo = gid->elem.rev_bo;
- assert(stack_top->u.ptr.field->type.atype == atype_sequence ||
- stack_top->u.ptr.field->type.atype == atype_sequence_nestable);
+ assert(stack_top->u.ptr.field->type.atype == atype_sequence_nestable);
stack_top->u.ptr.field = NULL;
break;
}
stack_top->type = REG_S64;
break;
}
+ case OBJECT_TYPE_SIGNED_ENUM:
+ {
+ int64_t tmp;
+
+ dbg_printf("op load field signed enumeration\n");
+ tmp = *(int64_t *) stack_top->u.ptr.ptr;
+ if (stack_top->u.ptr.rev_bo)
+ tmp = bswap_64(tmp);
+ stack_top->u.v = tmp;
+ stack_top->type = REG_S64;
+ break;
+ }
case OBJECT_TYPE_U8:
dbg_printf("op load field u8\n");
stack_top->u.v = *(uint8_t *) stack_top->u.ptr.ptr;
stack_top->type = REG_U64;
break;
}
+ case OBJECT_TYPE_UNSIGNED_ENUM:
+ {
+ uint64_t tmp;
+
+ dbg_printf("op load field unsigned enumeration\n");
+ tmp = *(uint64_t *) stack_top->u.ptr.ptr;
+ if (stack_top->u.ptr.rev_bo)
+ tmp = bswap_64(tmp);
+ stack_top->u.v = tmp;
+ stack_top->type = REG_U64;
+ break;
+ }
case OBJECT_TYPE_DOUBLE:
memcpy(&stack_top->u.d,
stack_top->u.ptr.ptr,
output->u.sequence.nr_elem = ax->u.ptr.field->type.u.array_nestable.length;
output->u.sequence.nested_type = ax->u.ptr.field->type.u.array_nestable.elem_type;
break;
+ case OBJECT_TYPE_SIGNED_ENUM:
+ ret = dynamic_load_field(ax);
+ if (ret)
+ return ret;
+ output->type = LTTNG_INTERPRETER_TYPE_SIGNED_ENUM;
+ output->u.s = ax->u.v;
+ break;
+ case OBJECT_TYPE_UNSIGNED_ENUM:
+ ret = dynamic_load_field(ax);
+ if (ret)
+ return ret;
+ output->type = LTTNG_INTERPRETER_TYPE_UNSIGNED_ENUM;
+ output->u.u = ax->u.v;
+ break;
case OBJECT_TYPE_STRUCT:
case OBJECT_TYPE_VARIANT:
default:
}
/*
- * Return 0 (discard), or raise the 0x1 flag (log event).
- * Currently, other flags are kept for future extensions and have no
- * effect.
+ * For `output` equal to NULL:
+ * Return 0 (discard), or raise the 0x1 flag (log event).
+ * Currently, other flags are kept for future extensions and have no
+ * effect.
+ * For `output` not equal to NULL:
+ * Return 0 on success, negative error value on error.
*/
static
uint64_t bytecode_interpret(void *interpreter_data,
struct lttng_interpreter_output *output)
{
struct bytecode_runtime *bytecode = interpreter_data;
- struct lttng_ctx *ctx = rcu_dereference(*bytecode->p.pctx);
+ struct lttng_ctx *ctx = lttng_ust_rcu_dereference(*bytecode->p.priv->pctx);
void *pc, *next_pc, *start_pc;
int ret = -EINVAL;
uint64_t retval = 0;
return bytecode_interpret(filter_data, filter_stack_data, NULL);
}
+uint64_t lttng_bytecode_capture_interpret(void *capture_data,
+ const char *capture_stack_data,
+ struct lttng_interpreter_output *output)
+{
+ return bytecode_interpret(capture_data, capture_stack_data,
+ (struct lttng_interpreter_output *) output);
+}
+
#undef START_OP
#undef OP
#undef PO
projects / lttng-ust.git / blobdiff