X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Flttng-bytecode.c;h=3e9b3e53745e07fadd5fdfa8845d0523f74091d1;hb=d96a4a7a78319be3386b57d9068817e9ffac2a24;hp=5b6cb1171b43b9cea3266114c36853c80ae18131;hpb=60206944ca1ab9c7b2c8519324e07e1a76a8f936;p=lttng-modules.git

diff --git a/src/lttng-bytecode.c b/src/lttng-bytecode.c
index 5b6cb117..3e9b3e53 100644
--- a/src/lttng-bytecode.c
+++ b/src/lttng-bytecode.c
@@ -196,28 +196,28 @@ int apply_field_reloc(const struct lttng_event_desc *event_desc,
 			break;
 		}
 		/* compute field offset */
-		switch (fields[i].type.atype) {
-		case atype_integer:
-		case atype_enum_nestable:
+		switch (fields[i].type.type) {
+		case lttng_kernel_type_integer:
+		case lttng_kernel_type_enum_nestable:
 			field_offset += sizeof(int64_t);
 			break;
-		case atype_array_nestable:
+		case lttng_kernel_type_array_nestable:
 			if (!lttng_is_bytewise_integer(fields[i].type.u.array_nestable.elem_type))
 				return -EINVAL;
 			field_offset += sizeof(unsigned long);
 			field_offset += sizeof(void *);
 			break;
-		case atype_sequence_nestable:
+		case lttng_kernel_type_sequence_nestable:
 			if (!lttng_is_bytewise_integer(fields[i].type.u.sequence_nestable.elem_type))
 				return -EINVAL;
 			field_offset += sizeof(unsigned long);
 			field_offset += sizeof(void *);
 			break;
-		case atype_string:
+		case lttng_kernel_type_string:
 			field_offset += sizeof(void *);
 			break;
-		case atype_struct_nestable:	/* Unsupported. */
-		case atype_variant_nestable:	/* Unsupported. */
+		case lttng_kernel_type_struct_nestable:	/* Unsupported. */
+		case lttng_kernel_type_variant_nestable:	/* Unsupported. */
 		default:
 			return -EINVAL;
 		}
@@ -238,26 +238,43 @@ int apply_field_reloc(const struct lttng_event_desc *event_desc,
 		struct field_ref *field_ref;
 
 		field_ref = (struct field_ref *) op->data;
-		switch (field->type.atype) {
-		case atype_integer:
-		case atype_enum_nestable:
+		switch (field->type.type) {
+		case lttng_kernel_type_integer:
+		case lttng_kernel_type_enum_nestable:
 			op->op = BYTECODE_OP_LOAD_FIELD_REF_S64;
 			break;
-		case atype_array_nestable:
-		case atype_sequence_nestable:
+		case lttng_kernel_type_array_nestable:
+		{
+			const struct lttng_type *elem_type = field->type.u.array_nestable.elem_type;
+
+			if (!lttng_is_bytewise_integer(elem_type) || elem_type->u.integer.encoding == lttng_kernel_string_encoding_none)
+				return -EINVAL;
 			if (field->user)
 				op->op = BYTECODE_OP_LOAD_FIELD_REF_USER_SEQUENCE;
 			else
 				op->op = BYTECODE_OP_LOAD_FIELD_REF_SEQUENCE;
 			break;
-		case atype_string:
+		}
+		case lttng_kernel_type_sequence_nestable:
+		{
+			const struct lttng_type *elem_type = field->type.u.sequence_nestable.elem_type;
+
+			if (!lttng_is_bytewise_integer(elem_type) || elem_type->u.integer.encoding == lttng_kernel_string_encoding_none)
+				return -EINVAL;
+			if (field->user)
+				op->op = BYTECODE_OP_LOAD_FIELD_REF_USER_SEQUENCE;
+			else
+				op->op = BYTECODE_OP_LOAD_FIELD_REF_SEQUENCE;
+			break;
+		}
+		case lttng_kernel_type_string:
 			if (field->user)
 				op->op = BYTECODE_OP_LOAD_FIELD_REF_USER_STRING;
 			else
 				op->op = BYTECODE_OP_LOAD_FIELD_REF_STRING;
 			break;
-		case atype_struct_nestable:	/* Unsupported. */
-		case atype_variant_nestable:	/* Unsupported. */
+		case lttng_kernel_type_struct_nestable:	/* Unsupported. */
+		case lttng_kernel_type_variant_nestable:	/* Unsupported. */
 		default:
 			return -EINVAL;
 		}
@@ -303,30 +320,38 @@ int apply_context_reloc(struct bytecode_runtime *runtime,
 		struct field_ref *field_ref;
 
 		field_ref = (struct field_ref *) op->data;
-		switch (ctx_field->event_field.type.atype) {
-		case atype_integer:
-		case atype_enum_nestable:
+		switch (ctx_field->event_field.type.type) {
+		case lttng_kernel_type_integer:
+		case lttng_kernel_type_enum_nestable:
 			op->op = BYTECODE_OP_GET_CONTEXT_REF_S64;
 			break;
 			/* Sequence and array supported as string */
-		case atype_string:
+		case lttng_kernel_type_string:
 			BUG_ON(ctx_field->event_field.user);
 			op->op = BYTECODE_OP_GET_CONTEXT_REF_STRING;
 			break;
-		case atype_array_nestable:
-			if (!lttng_is_bytewise_integer(ctx_field->event_field.type.u.array_nestable.elem_type))
+		case lttng_kernel_type_array_nestable:
+		{
+			const struct lttng_type *elem_type = ctx_field->event_field.type.u.array_nestable.elem_type;
+
+			if (!lttng_is_bytewise_integer(elem_type) || elem_type->u.integer.encoding == lttng_kernel_string_encoding_none)
 				return -EINVAL;
 			BUG_ON(ctx_field->event_field.user);
 			op->op = BYTECODE_OP_GET_CONTEXT_REF_STRING;
 			break;
-		case atype_sequence_nestable:
-			if (!lttng_is_bytewise_integer(ctx_field->event_field.type.u.sequence_nestable.elem_type))
+		}
+		case lttng_kernel_type_sequence_nestable:
+		{
+			const struct lttng_type *elem_type = ctx_field->event_field.type.u.sequence_nestable.elem_type;
+
+			if (!lttng_is_bytewise_integer(elem_type) || elem_type->u.integer.encoding == lttng_kernel_string_encoding_none)
 				return -EINVAL;
 			BUG_ON(ctx_field->event_field.user);
 			op->op = BYTECODE_OP_GET_CONTEXT_REF_STRING;
 			break;
-		case atype_struct_nestable:	/* Unsupported. */
-		case atype_variant_nestable:	/* Unsupported. */
+		}
+		case lttng_kernel_type_struct_nestable:	/* Unsupported. */
+		case lttng_kernel_type_variant_nestable:	/* Unsupported. */
 		default:
 			return -EINVAL;
 		}
@@ -398,6 +423,7 @@ static
 int link_bytecode(const struct lttng_event_desc *event_desc,
 		struct lttng_ctx *ctx,
 		struct lttng_bytecode_node *bytecode,
+		struct list_head *bytecode_runtime_head,
 		struct list_head *insert_loc)
 {
 	int ret, offset, next_offset;
@@ -407,7 +433,7 @@ int link_bytecode(const struct lttng_event_desc *event_desc,
 	if (!bytecode)
 		return 0;
 	/* Bytecode already linked */
-	if (bytecode_is_linked(bytecode, insert_loc))
+	if (bytecode_is_linked(bytecode, bytecode_runtime_head))
 		return 0;
 
 	dbg_printk("Linking...\n");
@@ -457,6 +483,9 @@ int link_bytecode(const struct lttng_event_desc *event_desc,
 	case LTTNG_BYTECODE_NODE_TYPE_FILTER:
 		runtime->p.interpreter_funcs.filter = lttng_bytecode_filter_interpret;
 		break;
+	case LTTNG_BYTECODE_NODE_TYPE_CAPTURE:
+		runtime->p.interpreter_funcs.capture = lttng_bytecode_capture_interpret_false;
+		break;
 	default:
 		WARN_ON(1);
 	}
@@ -472,6 +501,9 @@ link_error:
 	case LTTNG_BYTECODE_NODE_TYPE_FILTER:
 		runtime->p.interpreter_funcs.filter = lttng_bytecode_filter_interpret_false;
 		break;
+	case LTTNG_BYTECODE_NODE_TYPE_CAPTURE:
+		runtime->p.interpreter_funcs.capture = lttng_bytecode_capture_interpret_false;
+		break;
 	default:
 		WARN_ON(1);
 	}
@@ -492,10 +524,20 @@ void lttng_bytecode_filter_sync_state(struct lttng_bytecode_runtime *runtime)
 		runtime->interpreter_funcs.filter = lttng_bytecode_filter_interpret;
 }
 
+void lttng_bytecode_capture_sync_state(struct lttng_bytecode_runtime *runtime)
+{
+	struct lttng_bytecode_node *bc = runtime->bc;
+
+	if (!bc->enabler->enabled || runtime->link_failed)
+		runtime->interpreter_funcs.capture = lttng_bytecode_capture_interpret_false;
+	else
+		runtime->interpreter_funcs.capture = lttng_bytecode_capture_interpret;
+}
+
 /*
- * Given the lists of bytecode programs of an instance (trigger or event) and
- * of a matching enabler, try to link all the enabler's bytecode programs with
- * the instance.
+ * Given the lists of bytecode programs of an instance (event or event
+ * notifier) and of a matching enabler, try to link all the enabler's bytecode
+ * programs with the instance.
  *
  * This function is called after we confirmed that name enabler and the
  * instance are matching names (or glob pattern matching).
@@ -550,7 +592,7 @@ void lttng_enabler_link_bytecode(const struct lttng_event_desc *event_desc,
 		insert_loc = instance_bytecode_head;
 	add_within:
 		dbg_printk("linking bytecode\n");
-		ret = link_bytecode(event_desc, ctx, enabler_bc, insert_loc);
+		ret = link_bytecode(event_desc, ctx, enabler_bc, instance_bytecode_head, insert_loc);
 		if (ret) {
 			dbg_printk("[lttng filter] warning: cannot link event bytecode\n");
 		}
@@ -587,3 +629,14 @@ void lttng_free_event_filter_runtime(struct lttng_event *event)
 		kfree(runtime);
 	}
 }
+
+void lttng_free_event_notifier_filter_runtime(struct lttng_event_notifier *event_notifier)
+{
+	struct bytecode_runtime *runtime, *tmp;
+
+	list_for_each_entry_safe(runtime, tmp,
+			&event_notifier->filter_bytecode_runtime_head, p.node) {
+		kfree(runtime->data);
+		kfree(runtime);
+	}
+}