X-Git-Url: http://git.lttng.org/?a=blobdiff_plain;f=liblttng-ust%2Flttng-bytecode.c;h=39881be021d896420c97b45aa074da227a1a0cfd;hb=25cff019d711338b8a7efe1cc54e4b1870157348;hp=ca8914ede7251291e5d9343ccb0a5514bb8b812c;hpb=b246453617a1665c64289c33a10dc3f31b1a1158;p=lttng-ust.git

diff --git a/liblttng-ust/lttng-bytecode.c b/liblttng-ust/lttng-bytecode.c
index ca8914ed..39881be0 100644
--- a/liblttng-ust/lttng-bytecode.c
+++ b/liblttng-ust/lttng-bytecode.c
@@ -1,27 +1,9 @@
 /*
- * lttng-bytecode.c
- *
- * LTTng UST bytecode code.
+ * 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 code.
  */
 
 #define _LGPL_SOURCE
@@ -30,6 +12,7 @@
 
 #include <urcu/rculist.h>
 
+#include "context-internal.h"
 #include "lttng-bytecode.h"
 #include "ust-events-internal.h"
 
@@ -179,7 +162,7 @@ static const char *opnames[] = {
 	[ BYTECODE_OP_RETURN_S64 ] = "RETURN_S64",
 };
 
-const char *print_op(enum bytecode_op op)
+const char *lttng_bytecode_print_op(enum bytecode_op op)
 {
 	if (op >= NR_BYTECODE_OPS)
 		return "UNKNOWN";
@@ -188,14 +171,14 @@ const char *print_op(enum bytecode_op op)
 }
 
 static
-int apply_field_reloc(const struct lttng_event_desc *event_desc,
+int apply_field_reloc(const struct lttng_ust_event_desc *event_desc,
 		struct bytecode_runtime *runtime,
 		uint32_t runtime_len,
 		uint32_t reloc_offset,
 		const char *field_name,
 		enum bytecode_op bytecode_op)
 {
-	const struct lttng_event_field *fields, *field = NULL;
+	const struct lttng_ust_event_field **fields, *field = NULL;
 	unsigned int nr_fields, i;
 	struct load_op *op;
 	uint32_t field_offset = 0;
@@ -210,23 +193,20 @@ int apply_field_reloc(const struct lttng_event_desc *event_desc,
 		return -EINVAL;
 	nr_fields = event_desc->nr_fields;
 	for (i = 0; i < nr_fields; i++) {
-		if (fields[i].u.ext.nofilter) {
+		if (fields[i]->nofilter) {
 			continue;
 		}
-		if (!strcmp(fields[i].name, field_name)) {
-			field = &fields[i];
+		if (!strcmp(fields[i]->name, field_name)) {
+			field = fields[i];
 			break;
 		}
 		/* compute field offset */
-		switch (fields[i].type.atype) {
+		switch (fields[i]->type.atype) {
 		case atype_integer:
-		case atype_enum:
 		case atype_enum_nestable:
 			field_offset += sizeof(int64_t);
 			break;
-		case atype_array:
 		case atype_array_nestable:
-		case atype_sequence:
 		case atype_sequence_nestable:
 			field_offset += sizeof(unsigned long);
 			field_offset += sizeof(void *);
@@ -245,7 +225,7 @@ int apply_field_reloc(const struct lttng_event_desc *event_desc,
 		return -EINVAL;
 
 	/* Check if field offset is too large for 16-bit offset */
-	if (field_offset > FILTER_BYTECODE_MAX_LEN - 1)
+	if (field_offset > LTTNG_UST_ABI_FILTER_BYTECODE_MAX_LEN - 1)
 		return -EINVAL;
 
 	/* set type */
@@ -259,13 +239,10 @@ int apply_field_reloc(const struct lttng_event_desc *event_desc,
 		field_ref = (struct field_ref *) op->data;
 		switch (field->type.atype) {
 		case atype_integer:
-		case atype_enum:
 		case atype_enum_nestable:
 			op->op = BYTECODE_OP_LOAD_FIELD_REF_S64;
 			break;
-		case atype_array:
 		case atype_array_nestable:
-		case atype_sequence:
 		case atype_sequence_nestable:
 			op->op = BYTECODE_OP_LOAD_FIELD_REF_SEQUENCE;
 			break;
@@ -298,7 +275,7 @@ int apply_context_reloc(struct bytecode_runtime *runtime,
 	struct load_op *op;
 	struct lttng_ctx_field *ctx_field;
 	int idx;
-	struct lttng_ctx **pctx = runtime->p.pctx;
+	struct lttng_ctx **pctx = runtime->p.priv->pctx;
 
 	dbg_printf("Apply context reloc: %u %s\n", reloc_offset, context_name);
 
@@ -320,7 +297,7 @@ int apply_context_reloc(struct bytecode_runtime *runtime,
 		}
 	}
 	/* Check if idx is too large for 16-bit offset */
-	if (idx > FILTER_BYTECODE_MAX_LEN - 1)
+	if (idx > LTTNG_UST_ABI_FILTER_BYTECODE_MAX_LEN - 1)
 		return -EINVAL;
 
 	/* Get context return type */
@@ -335,15 +312,12 @@ int apply_context_reloc(struct bytecode_runtime *runtime,
 		field_ref = (struct field_ref *) op->data;
 		switch (ctx_field->event_field.type.atype) {
 		case atype_integer:
-		case atype_enum:
 		case atype_enum_nestable:
 			op->op = BYTECODE_OP_GET_CONTEXT_REF_S64;
 			break;
 			/* Sequence and array supported as string */
 		case atype_string:
-		case atype_array:
 		case atype_array_nestable:
-		case atype_sequence:
 		case atype_sequence_nestable:
 			op->op = BYTECODE_OP_GET_CONTEXT_REF_STRING;
 			break;
@@ -367,7 +341,7 @@ int apply_context_reloc(struct bytecode_runtime *runtime,
 }
 
 static
-int apply_reloc(const struct lttng_event_desc *event_desc,
+int apply_reloc(const struct lttng_ust_event_desc *event_desc,
 		struct bytecode_runtime *runtime,
 		uint32_t runtime_len,
 		uint32_t reloc_offset,
@@ -410,7 +384,7 @@ int bytecode_is_linked(struct lttng_ust_bytecode_node *bytecode,
 	struct lttng_bytecode_runtime *bc_runtime;
 
 	cds_list_for_each_entry(bc_runtime, bytecode_runtime_head, node) {
-		if (bc_runtime->bc == bytecode)
+		if (bc_runtime->priv->bc == bytecode)
 			return 1;
 	}
 	return 0;
@@ -421,19 +395,21 @@ int bytecode_is_linked(struct lttng_ust_bytecode_node *bytecode,
  * bytecode runtime.
  */
 static
-int link_bytecode(const struct lttng_event_desc *event_desc,
+int link_bytecode(const struct lttng_ust_event_desc *event_desc,
 		struct lttng_ctx **ctx,
 		struct lttng_ust_bytecode_node *bytecode,
+		struct cds_list_head *bytecode_runtime_head,
 		struct cds_list_head *insert_loc)
 {
 	int ret, offset, next_offset;
 	struct bytecode_runtime *runtime = NULL;
+	struct lttng_ust_bytecode_runtime_private *runtime_priv = NULL;
 	size_t runtime_alloc_len;
 
 	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_printf("Linking...\n");
@@ -445,8 +421,17 @@ int link_bytecode(const struct lttng_event_desc *event_desc,
 		ret = -ENOMEM;
 		goto alloc_error;
 	}
-	runtime->p.bc = bytecode;
-	runtime->p.pctx = ctx;
+	runtime_priv = zmalloc(sizeof(struct lttng_ust_bytecode_runtime_private));
+	if (!runtime_priv) {
+		free(runtime);
+		runtime = NULL;
+		ret = -ENOMEM;
+		goto alloc_error;
+	}
+	runtime->p.priv = runtime_priv;
+	runtime_priv->pub = runtime;
+	runtime_priv->bc = bytecode;
+	runtime_priv->pctx = ctx;
 	runtime->len = bytecode->bc.reloc_offset;
 	/* copy original bytecode */
 	memcpy(runtime->code, bytecode->bc.data, runtime->len);
@@ -490,7 +475,7 @@ int link_bytecode(const struct lttng_event_desc *event_desc,
 		abort();
 	}
 
-	runtime->p.link_failed = 0;
+	runtime->p.priv->link_failed = 0;
 	cds_list_add_rcu(&runtime->p.node, insert_loc);
 	dbg_printf("Linking successful.\n");
 	return 0;
@@ -507,7 +492,7 @@ link_error:
 		abort();
 	}
 
-	runtime->p.link_failed = 1;
+	runtime_priv->link_failed = 1;
 	cds_list_add_rcu(&runtime->p.node, insert_loc);
 alloc_error:
 	dbg_printf("Linking failed.\n");
@@ -516,9 +501,9 @@ alloc_error:
 
 void lttng_bytecode_filter_sync_state(struct lttng_bytecode_runtime *runtime)
 {
-	struct lttng_ust_bytecode_node *bc = runtime->bc;
+	struct lttng_ust_bytecode_node *bc = runtime->priv->bc;
 
-	if (!bc->enabler->enabled || runtime->link_failed)
+	if (!bc->enabler->enabled || runtime->priv->link_failed)
 		runtime->interpreter_funcs.filter = lttng_bytecode_filter_interpret_false;
 	else
 		runtime->interpreter_funcs.filter = lttng_bytecode_filter_interpret;
@@ -526,9 +511,9 @@ void lttng_bytecode_filter_sync_state(struct lttng_bytecode_runtime *runtime)
 
 void lttng_bytecode_capture_sync_state(struct lttng_bytecode_runtime *runtime)
 {
-	struct lttng_ust_bytecode_node *bc = runtime->bc;
+	struct lttng_ust_bytecode_node *bc = runtime->priv->bc;
 
-	if (!bc->enabler->enabled || runtime->link_failed)
+	if (!bc->enabler->enabled || runtime->priv->link_failed)
 		runtime->interpreter_funcs.capture = lttng_bytecode_capture_interpret_false;
 	else
 		runtime->interpreter_funcs.capture = lttng_bytecode_capture_interpret;
@@ -542,7 +527,7 @@ void lttng_bytecode_capture_sync_state(struct lttng_bytecode_runtime *runtime)
  * This function is called after we confirmed that name enabler and the
  * instance are name matching (or glob pattern matching).
  */
-void lttng_enabler_link_bytecode(const struct lttng_event_desc *event_desc,
+void lttng_enabler_link_bytecode(const struct lttng_ust_event_desc *event_desc,
 		struct lttng_ctx **ctx,
 		struct cds_list_head *instance_bytecode_head,
 		struct cds_list_head *enabler_bytecode_head)
@@ -562,7 +547,7 @@ void lttng_enabler_link_bytecode(const struct lttng_event_desc *event_desc,
 		 * linked with the instance.
 		 */
 		cds_list_for_each_entry(runtime, instance_bytecode_head, node) {
-			if (runtime->bc == enabler_bc) {
+			if (runtime->priv->bc == enabler_bc) {
 				found = 1;
 				break;
 			}
@@ -582,7 +567,7 @@ void lttng_enabler_link_bytecode(const struct lttng_event_desc *event_desc,
 		 */
 		cds_list_for_each_entry_reverse(runtime,
 				instance_bytecode_head, node) {
-			if (runtime->bc->bc.seqnum <= enabler_bc->bc.seqnum) {
+			if (runtime->priv->bc->bc.seqnum <= enabler_bc->bc.seqnum) {
 				/* insert here */
 				insert_loc = &runtime->node;
 				goto add_within;
@@ -593,7 +578,7 @@ void lttng_enabler_link_bytecode(const struct lttng_event_desc *event_desc,
 		insert_loc = instance_bytecode_head;
 	add_within:
 		dbg_printf("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_printf("[lttng filter] warning: cannot link event bytecode\n");
 		}
@@ -618,17 +603,12 @@ void free_filter_runtime(struct cds_list_head *bytecode_runtime_head)
 	cds_list_for_each_entry_safe(runtime, tmp, bytecode_runtime_head,
 			p.node) {
 		free(runtime->data);
+		free(runtime->p.priv);
 		free(runtime);
 	}
 }
 
-void lttng_free_event_filter_runtime(struct lttng_event *event)
+void lttng_free_event_filter_runtime(struct lttng_ust_event_common *event)
 {
 	free_filter_runtime(&event->filter_bytecode_runtime_head);
 }
-
-void lttng_free_event_notifier_filter_runtime(
-		struct lttng_event_notifier *event_notifier)
-{
-	free_filter_runtime(&event_notifier->filter_bytecode_runtime_head);
-}