Spelling cleanups within comments
[babeltrace.git] / formats / ctf / metadata / ctf-visitor-generate-io-struct.c
index af75788aa92dedfd9794ea9b2f80473330e23cca..ebf8b1b2328fe2396b626462acb58eb08ed79c1a 100644 (file)
  *
  * 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 <stdio.h>
@@ -437,7 +445,7 @@ struct declaration *ctf_type_declarator_visit(FILE *fd, int depth,
                         */
                        alias_q = create_typealias_identifier(fd, depth,
                                type_specifier_list, node_type_declarator);
-                       nested_declaration = lookup_declaration(alias_q, declaration_scope);
+                       nested_declaration = bt_lookup_declaration(alias_q, declaration_scope);
                        if (!nested_declaration) {
                                fprintf(fd, "[error] %s: cannot find typealias \"%s\".\n", __func__, g_quark_to_string(alias_q));
                                return NULL;
@@ -452,7 +460,7 @@ struct declaration *ctf_type_declarator_visit(FILE *fd, int depth,
                                         * integer declaration to modify it. There could be other references to
                                         * it.
                                         */
-                                       integer_declaration = integer_declaration_new(integer_declaration->len,
+                                       integer_declaration = bt_integer_declaration_new(integer_declaration->len,
                                                integer_declaration->byte_order, integer_declaration->signedness,
                                                integer_declaration->p.alignment, 16, integer_declaration->encoding,
                                                integer_declaration->clock);
@@ -501,13 +509,14 @@ struct declaration *ctf_type_declarator_visit(FILE *fd, int depth,
                        size_t len;
 
                        len = first->u.unary_expression.u.unsigned_constant;
-                       array_declaration = array_declaration_new(len, nested_declaration,
+                       array_declaration = bt_array_declaration_new(len, nested_declaration,
                                                declaration_scope);
 
                        if (!array_declaration) {
                                fprintf(fd, "[error] %s: cannot create array declaration.\n", __func__);
                                return NULL;
                        }
+                       bt_declaration_unref(nested_declaration);
                        declaration = &array_declaration->p;
                        break;
                }
@@ -517,12 +526,15 @@ struct declaration *ctf_type_declarator_visit(FILE *fd, int depth,
                        char *length_name = concatenate_unary_strings(&node_type_declarator->u.type_declarator.u.nested.length);
                        struct declaration_sequence *sequence_declaration;
 
-                       sequence_declaration = sequence_declaration_new(length_name, nested_declaration, declaration_scope);
+                       sequence_declaration = bt_sequence_declaration_new(length_name, nested_declaration, declaration_scope);
                        if (!sequence_declaration) {
                                fprintf(fd, "[error] %s: cannot create sequence declaration.\n", __func__);
+                               g_free(length_name);
                                return NULL;
                        }
+                       bt_declaration_unref(nested_declaration);
                        declaration = &sequence_declaration->p;
+                       g_free(length_name);
                        break;
                }
                default:
@@ -563,14 +575,15 @@ int ctf_struct_type_declarators_visit(FILE *fd, int depth,
                }
 
                /* Check if field with same name already exists */
-               if (struct_declaration_lookup_field_index(struct_declaration, field_name) >= 0) {
+               if (bt_struct_declaration_lookup_field_index(struct_declaration, field_name) >= 0) {
                        fprintf(fd, "[error] %s: duplicate field %s in struct\n", __func__, g_quark_to_string(field_name));
                        return -EINVAL;
                }
 
-               struct_declaration_add_field(struct_declaration,
+               bt_struct_declaration_add_field(struct_declaration,
                                             g_quark_to_string(field_name),
                                             field_declaration);
+               bt_declaration_unref(field_declaration);
        }
        return 0;
 }
@@ -599,15 +612,15 @@ int ctf_variant_type_declarators_visit(FILE *fd, int depth,
                        return -EINVAL;
                }
 
-               if (untagged_variant_declaration_get_field_from_tag(untagged_variant_declaration, field_name) != NULL) {
+               if (bt_untagged_variant_declaration_get_field_from_tag(untagged_variant_declaration, field_name) != NULL) {
                        fprintf(fd, "[error] %s: duplicate field %s in variant\n", __func__, g_quark_to_string(field_name));
                        return -EINVAL;
                }
 
-
-               untagged_variant_declaration_add_field(untagged_variant_declaration,
+               bt_untagged_variant_declaration_add_field(untagged_variant_declaration,
                                              g_quark_to_string(field_name),
                                              field_declaration);
+               bt_declaration_unref(field_declaration);
        }
        return 0;
 }
@@ -639,14 +652,15 @@ int ctf_typedef_visit(FILE *fd, int depth, struct declaration_scope *scope,
                 */
                if (type_declaration->id == CTF_TYPE_UNTAGGED_VARIANT) {
                        fprintf(fd, "[error] %s: typedef of untagged variant is not permitted.\n", __func__);
-                       declaration_unref(type_declaration);
+                       bt_declaration_unref(type_declaration);
                        return -EPERM;
                }
-               ret = register_declaration(identifier, type_declaration, scope);
+               ret = bt_register_declaration(identifier, type_declaration, scope);
                if (ret) {
                        type_declaration->declaration_free(type_declaration);
                        return ret;
                }
+               bt_declaration_unref(type_declaration);
        }
        return 0;
 }
@@ -688,7 +702,7 @@ int ctf_typealias_visit(FILE *fd, int depth, struct declaration_scope *scope,
         */
        if (type_declaration->id == CTF_TYPE_UNTAGGED_VARIANT) {
                fprintf(fd, "[error] %s: typedef of untagged variant is not permitted.\n", __func__);
-               declaration_unref(type_declaration);
+               bt_declaration_unref(type_declaration);
                return -EPERM;
        }
        /*
@@ -708,9 +722,10 @@ int ctf_typealias_visit(FILE *fd, int depth, struct declaration_scope *scope,
                                struct ctf_node, siblings);
        alias_q = create_typealias_identifier(fd, depth,
                        alias->u.typealias_alias.type_specifier_list, node);
-       err = register_declaration(alias_q, type_declaration, scope);
+       err = bt_register_declaration(alias_q, type_declaration, scope);
        if (err)
                goto error;
+       bt_declaration_unref(type_declaration);
        return 0;
 
 error:
@@ -816,7 +831,6 @@ struct declaration *ctf_declaration_struct_visit(FILE *fd,
 {
        struct declaration_struct *struct_declaration;
        struct ctf_node *iter;
-       int ret;
 
        /*
         * For named struct (without body), lookup in
@@ -826,8 +840,9 @@ struct declaration *ctf_declaration_struct_visit(FILE *fd,
        if (!has_body) {
                assert(name);
                struct_declaration =
-                       lookup_struct_declaration(g_quark_from_string(name),
+                       bt_lookup_struct_declaration(g_quark_from_string(name),
                                                  declaration_scope);
+               bt_declaration_ref(&struct_declaration->p);
                return &struct_declaration->p;
        } else {
                uint64_t min_align_value = 0;
@@ -835,7 +850,7 @@ struct declaration *ctf_declaration_struct_visit(FILE *fd,
                /* For unnamed struct, create type */
                /* For named struct (with body), create type and add to declaration scope */
                if (name) {
-                       if (lookup_struct_declaration(g_quark_from_string(name),
+                       if (bt_lookup_struct_declaration(g_quark_from_string(name),
                                                      declaration_scope)) {
                                
                                fprintf(fd, "[error] %s: struct %s already declared in scope\n", __func__, name);
@@ -843,6 +858,8 @@ struct declaration *ctf_declaration_struct_visit(FILE *fd,
                        }
                }
                if (!bt_list_empty(min_align)) {
+                       int ret;
+
                        ret = get_unary_unsigned(min_align, &min_align_value);
                        if (ret) {
                                fprintf(fd, "[error] %s: unexpected unary expression for structure \"align\" attribute\n", __func__);
@@ -850,16 +867,20 @@ struct declaration *ctf_declaration_struct_visit(FILE *fd,
                                goto error;
                        }
                }
-               struct_declaration = struct_declaration_new(declaration_scope,
+               struct_declaration = bt_struct_declaration_new(declaration_scope,
                                                            min_align_value);
                bt_list_for_each_entry(iter, declaration_list, siblings) {
+                       int ret;
+
                        ret = ctf_struct_declaration_list_visit(fd, depth + 1, iter,
                                struct_declaration, trace);
                        if (ret)
                                goto error_free_declaration;
                }
                if (name) {
-                       ret = register_struct_declaration(g_quark_from_string(name),
+                       int ret;
+
+                       ret = bt_register_struct_declaration(g_quark_from_string(name),
                                        struct_declaration,
                                        declaration_scope);
                        assert(!ret);
@@ -882,7 +903,6 @@ struct declaration *ctf_declaration_variant_visit(FILE *fd,
        struct declaration_untagged_variant *untagged_variant_declaration;
        struct declaration_variant *variant_declaration;
        struct ctf_node *iter;
-       int ret;
 
        /*
         * For named variant (without body), lookup in
@@ -892,28 +912,33 @@ struct declaration *ctf_declaration_variant_visit(FILE *fd,
        if (!has_body) {
                assert(name);
                untagged_variant_declaration =
-                       lookup_variant_declaration(g_quark_from_string(name),
+                       bt_lookup_variant_declaration(g_quark_from_string(name),
                                                   declaration_scope);
+               bt_declaration_ref(&untagged_variant_declaration->p);
        } else {
                /* For unnamed variant, create type */
                /* For named variant (with body), create type and add to declaration scope */
                if (name) {
-                       if (lookup_variant_declaration(g_quark_from_string(name),
+                       if (bt_lookup_variant_declaration(g_quark_from_string(name),
                                                       declaration_scope)) {
                                
                                fprintf(fd, "[error] %s: variant %s already declared in scope\n", __func__, name);
                                return NULL;
                        }
                }
-               untagged_variant_declaration = untagged_variant_declaration_new(declaration_scope);
+               untagged_variant_declaration = bt_untagged_bt_variant_declaration_new(declaration_scope);
                bt_list_for_each_entry(iter, declaration_list, siblings) {
+                       int ret;
+
                        ret = ctf_variant_declaration_list_visit(fd, depth + 1, iter,
                                untagged_variant_declaration, trace);
                        if (ret)
                                goto error;
                }
                if (name) {
-                       ret = register_variant_declaration(g_quark_from_string(name),
+                       int ret;
+
+                       ret = bt_register_variant_declaration(g_quark_from_string(name),
                                        untagged_variant_declaration,
                                        declaration_scope);
                        assert(!ret);
@@ -926,10 +951,10 @@ struct declaration *ctf_declaration_variant_visit(FILE *fd,
        if (!choice) {
                return &untagged_variant_declaration->p;
        } else {
-               variant_declaration = variant_declaration_new(untagged_variant_declaration, choice);
+               variant_declaration = bt_variant_declaration_new(untagged_variant_declaration, choice);
                if (!variant_declaration)
                        goto error;
-               declaration_unref(&untagged_variant_declaration->p);
+               bt_declaration_unref(&untagged_variant_declaration->p);
                return &variant_declaration->p;
        }
 error:
@@ -982,7 +1007,7 @@ int ctf_enumerator_list_visit(FILE *fd, int depth,
                if (nr_vals <= 1)
                        end = start;
                last->u.s = end + 1;
-               enum_signed_insert(enum_declaration, start, end, q);
+               bt_enum_signed_insert(enum_declaration, start, end, q);
        } else {
                uint64_t start, end;
                int nr_vals = 0;
@@ -1022,7 +1047,7 @@ int ctf_enumerator_list_visit(FILE *fd, int depth,
                if (nr_vals <= 1)
                        end = start;
                last->u.u = end + 1;
-               enum_unsigned_insert(enum_declaration, start, end, q);
+               bt_enum_unsigned_insert(enum_declaration, start, end, q);
        }
        return 0;
 }
@@ -1042,7 +1067,6 @@ struct declaration *ctf_declaration_enum_visit(FILE *fd, int depth,
        struct last_enum_value last_value;
        struct ctf_node *iter;
        GQuark dummy_id;
-       int ret;
 
        /*
         * For named enum (without body), lookup in
@@ -1052,14 +1076,15 @@ struct declaration *ctf_declaration_enum_visit(FILE *fd, int depth,
        if (!has_body) {
                assert(name);
                enum_declaration =
-                       lookup_enum_declaration(g_quark_from_string(name),
+                       bt_lookup_enum_declaration(g_quark_from_string(name),
                                                declaration_scope);
+               bt_declaration_ref(&enum_declaration->p);
                return &enum_declaration->p;
        } else {
                /* For unnamed enum, create type */
                /* For named enum (with body), create type and add to declaration scope */
                if (name) {
-                       if (lookup_enum_declaration(g_quark_from_string(name),
+                       if (bt_lookup_enum_declaration(g_quark_from_string(name),
                                                    declaration_scope)) {
                                
                                fprintf(fd, "[error] %s: enum %s already declared in scope\n", __func__, name);
@@ -1067,7 +1092,7 @@ struct declaration *ctf_declaration_enum_visit(FILE *fd, int depth,
                        }
                }
                if (!container_type) {
-                       declaration = lookup_declaration(g_quark_from_static_string("int"),
+                       declaration = bt_lookup_declaration(g_quark_from_static_string("int"),
                                                         declaration_scope);
                        if (!declaration) {
                                fprintf(fd, "[error] %s: \"int\" type declaration missing for enumeration\n", __func__);
@@ -1089,24 +1114,29 @@ struct declaration *ctf_declaration_enum_visit(FILE *fd, int depth,
                        return NULL;
                }
                integer_declaration = container_of(declaration, struct declaration_integer, p);
-               enum_declaration = enum_declaration_new(integer_declaration);
-               declaration_unref(&integer_declaration->p);     /* leave ref to enum */
+               enum_declaration = bt_enum_declaration_new(integer_declaration);
+               bt_declaration_unref(&integer_declaration->p);  /* leave ref to enum */
                if (enum_declaration->integer_declaration->signedness) {
                        last_value.u.s = 0;
                } else {
                        last_value.u.u = 0;
                }
                bt_list_for_each_entry(iter, enumerator_list, siblings) {
+                       int ret;
+
                        ret = ctf_enumerator_list_visit(fd, depth + 1, iter, enum_declaration,
                                        &last_value);
                        if (ret)
                                goto error;
                }
                if (name) {
-                       ret = register_enum_declaration(g_quark_from_string(name),
+                       int ret;
+
+                       ret = bt_register_enum_declaration(g_quark_from_string(name),
                                        enum_declaration,
                                        declaration_scope);
                        assert(!ret);
+                       bt_declaration_unref(&enum_declaration->p);
                }
                return &enum_declaration->p;
        }
@@ -1133,7 +1163,8 @@ struct declaration *ctf_declaration_type_specifier_visit(FILE *fd, int depth,
        str_c = g_string_free(str, FALSE);
        id_q = g_quark_from_string(str_c);
        g_free(str_c);
-       declaration = lookup_declaration(id_q, declaration_scope);
+       declaration = bt_lookup_declaration(id_q, declaration_scope);
+       bt_declaration_ref(declaration);
        return declaration;
 }
 
@@ -1411,7 +1442,7 @@ struct declaration *ctf_declaration_integer_visit(FILE *fd, int depth,
                        alignment = CHAR_BIT;
                }
        }
-       integer_declaration = integer_declaration_new(size,
+       integer_declaration = bt_integer_declaration_new(size,
                                byte_order, signedness, alignment,
                                base, encoding, clock);
        return &integer_declaration->p;
@@ -1491,7 +1522,7 @@ struct declaration *ctf_declaration_floating_point_visit(FILE *fd, int depth,
                        alignment = CHAR_BIT;
                }
        }
-       float_declaration = float_declaration_new(mant_dig, exp_dig,
+       float_declaration = bt_float_declaration_new(mant_dig, exp_dig,
                                byte_order, alignment);
        return &float_declaration->p;
 }
@@ -1527,7 +1558,7 @@ struct declaration *ctf_declaration_string_visit(FILE *fd, int depth,
        }
        if (encoding_c && !strcmp(encoding_c, "ASCII"))
                encoding = CTF_STRING_ASCII;
-       string_declaration = string_declaration_new(encoding);
+       string_declaration = bt_string_declaration_new(encoding);
        return &string_declaration->p;
 }
 
@@ -1785,7 +1816,7 @@ int ctf_event_visit(FILE *fd, int depth, struct ctf_node *node,
 
        event_decl = g_new0(struct bt_ctf_event_decl, 1);
        event = &event_decl->parent;
-       event->declaration_scope = new_declaration_scope(parent_declaration_scope);
+       event->declaration_scope = bt_new_declaration_scope(parent_declaration_scope);
        event->loglevel = -1;
        bt_list_for_each_entry(iter, &node->u.event.declaration_list, siblings) {
                ret = ctf_event_declaration_visit(fd, depth + 1, iter, event, trace);
@@ -1833,10 +1864,10 @@ int ctf_event_visit(FILE *fd, int depth, struct ctf_node *node,
 
 error:
        if (event->fields_decl)
-               declaration_unref(&event->fields_decl->p);
+               bt_declaration_unref(&event->fields_decl->p);
        if (event->context_decl)
-               declaration_unref(&event->context_decl->p);
-       free_declaration_scope(event->declaration_scope);
+               bt_declaration_unref(&event->context_decl->p);
+       bt_free_declaration_scope(event->declaration_scope);
        g_free(event_decl);
        return ret;
 }
@@ -1972,7 +2003,7 @@ int ctf_stream_visit(FILE *fd, int depth, struct ctf_node *node,
        struct ctf_stream_declaration *stream;
 
        stream = g_new0(struct ctf_stream_declaration, 1);
-       stream->declaration_scope = new_declaration_scope(parent_declaration_scope);
+       stream->declaration_scope = bt_new_declaration_scope(parent_declaration_scope);
        stream->events_by_id = g_ptr_array_new();
        stream->event_quark_to_id = g_hash_table_new(g_direct_hash, g_direct_equal);
        stream->streams = g_ptr_array_new();
@@ -1986,7 +2017,7 @@ int ctf_stream_visit(FILE *fd, int depth, struct ctf_node *node,
        if (CTF_STREAM_FIELD_IS_SET(stream, stream_id)) {
                /* check that packet header has stream_id field. */
                if (!trace->packet_header_decl
-                   || struct_declaration_lookup_field_index(trace->packet_header_decl, g_quark_from_static_string("stream_id")) < 0) {
+                   || bt_struct_declaration_lookup_field_index(trace->packet_header_decl, g_quark_from_static_string("stream_id")) < 0) {
                        ret = -EPERM;
                        fprintf(fd, "[error] %s: missing stream_id field in packet header declaration, but stream_id attribute is declared for stream.\n", __func__);
                        goto error;
@@ -2009,15 +2040,15 @@ int ctf_stream_visit(FILE *fd, int depth, struct ctf_node *node,
 
 error:
        if (stream->event_header_decl)
-               declaration_unref(&stream->event_header_decl->p);
+               bt_declaration_unref(&stream->event_header_decl->p);
        if (stream->event_context_decl)
-               declaration_unref(&stream->event_context_decl->p);
+               bt_declaration_unref(&stream->event_context_decl->p);
        if (stream->packet_context_decl)
-               declaration_unref(&stream->packet_context_decl->p);
+               bt_declaration_unref(&stream->packet_context_decl->p);
        g_ptr_array_free(stream->streams, TRUE);
        g_ptr_array_free(stream->events_by_id, TRUE);
        g_hash_table_destroy(stream->event_quark_to_id);
-       free_declaration_scope(stream->declaration_scope);
+       bt_free_declaration_scope(stream->declaration_scope);
        g_free(stream);
        return ret;
 }
@@ -2168,7 +2199,7 @@ int ctf_trace_visit(FILE *fd, int depth, struct ctf_node *node, struct ctf_trace
 
        if (trace->declaration_scope)
                return -EEXIST;
-       trace->declaration_scope = new_declaration_scope(trace->root_declaration_scope);
+       trace->declaration_scope = bt_new_declaration_scope(trace->root_declaration_scope);
        trace->streams = g_ptr_array_new();
        trace->event_declarations = g_ptr_array_new();
        bt_list_for_each_entry(iter, &node->u.trace.declaration_list, siblings) {
@@ -2195,7 +2226,7 @@ int ctf_trace_visit(FILE *fd, int depth, struct ctf_node *node, struct ctf_trace
        if (!CTF_TRACE_FIELD_IS_SET(trace, byte_order)) {
                /* check that the packet header contains a "magic" field */
                if (!trace->packet_header_decl
-                   || struct_declaration_lookup_field_index(trace->packet_header_decl, g_quark_from_static_string("magic")) < 0) {
+                   || bt_struct_declaration_lookup_field_index(trace->packet_header_decl, g_quark_from_static_string("magic")) < 0) {
                        ret = -EPERM;
                        fprintf(fd, "[error] %s: missing both byte_order and packet header magic number in trace declaration\n", __func__);
                        goto error;
@@ -2205,12 +2236,12 @@ int ctf_trace_visit(FILE *fd, int depth, struct ctf_node *node, struct ctf_trace
 
 error:
        if (trace->packet_header_decl) {
-               declaration_unref(&trace->packet_header_decl->p);
+               bt_declaration_unref(&trace->packet_header_decl->p);
                trace->packet_header_decl = NULL;
        }
        g_ptr_array_free(trace->streams, TRUE);
        g_ptr_array_free(trace->event_declarations, TRUE);
-       free_declaration_scope(trace->declaration_scope);
+       bt_free_declaration_scope(trace->declaration_scope);
        trace->declaration_scope = NULL;
        return ret;
 }
@@ -2367,7 +2398,7 @@ int ctf_clock_visit(FILE *fd, int depth, struct ctf_node *node, struct ctf_trace
        if (opt_clock_force_correlate) {
                /*
                 * User requested to forcibly correlate the clock
-                * sources, even if we have no correlatation
+                * sources, even if we have no correlation
                 * information.
                 */
                if (!clock->absolute) {
@@ -2433,6 +2464,176 @@ void clock_free(gpointer data)
        g_free(clock);
 }
 
+static
+int ctf_callsite_declaration_visit(FILE *fd, int depth, struct ctf_node *node,
+               struct ctf_callsite *callsite, struct ctf_trace *trace)
+{
+       int ret = 0;
+
+       switch (node->type) {
+       case NODE_CTF_EXPRESSION:
+       {
+               char *left;
+
+               left = concatenate_unary_strings(&node->u.ctf_expression.left);
+               if (!strcmp(left, "name")) {
+                       char *right;
+
+                       if (CTF_CALLSITE_FIELD_IS_SET(callsite, name)) {
+                               fprintf(fd, "[error] %s: name already declared in callsite declaration\n", __func__);
+                               ret = -EPERM;
+                               goto error;
+                       }
+                       right = concatenate_unary_strings(&node->u.ctf_expression.right);
+                       if (!right) {
+                               fprintf(fd, "[error] %s: unexpected unary expression for callsite name\n", __func__);
+                               ret = -EINVAL;
+                               goto error;
+                       }
+                       callsite->name = g_quark_from_string(right);
+                       g_free(right);
+                       CTF_CALLSITE_SET_FIELD(callsite, name);
+               } else if (!strcmp(left, "func")) {
+                       char *right;
+
+                       if (CTF_CALLSITE_FIELD_IS_SET(callsite, func)) {
+                               fprintf(fd, "[error] %s: func already declared in callsite declaration\n", __func__);
+                               ret = -EPERM;
+                               goto error;
+                       }
+                       right = concatenate_unary_strings(&node->u.ctf_expression.right);
+                       if (!right) {
+                               fprintf(fd, "[error] %s: unexpected unary expression for callsite func\n", __func__);
+                               ret = -EINVAL;
+                               goto error;
+                       }
+                       callsite->func = right;
+                       CTF_CALLSITE_SET_FIELD(callsite, func);
+               } else if (!strcmp(left, "file")) {
+                       char *right;
+
+                       if (CTF_CALLSITE_FIELD_IS_SET(callsite, file)) {
+                               fprintf(fd, "[error] %s: file already declared in callsite declaration\n", __func__);
+                               ret = -EPERM;
+                               goto error;
+                       }
+                       right = concatenate_unary_strings(&node->u.ctf_expression.right);
+                       if (!right) {
+                               fprintf(fd, "[error] %s: unexpected unary expression for callsite file\n", __func__);
+                               ret = -EINVAL;
+                               goto error;
+                       }
+                       callsite->file = right;
+                       CTF_CALLSITE_SET_FIELD(callsite, file);
+               } else if (!strcmp(left, "line")) {
+                       if (CTF_CALLSITE_FIELD_IS_SET(callsite, line)) {
+                               fprintf(fd, "[error] %s: line already declared in callsite declaration\n", __func__);
+                               ret = -EPERM;
+                               goto error;
+                       }
+                       ret = get_unary_unsigned(&node->u.ctf_expression.right, &callsite->line);
+                       if (ret) {
+                               fprintf(fd, "[error] %s: unexpected unary expression for callsite line\n", __func__);
+                               ret = -EINVAL;
+                               goto error;
+                       }
+                       CTF_CALLSITE_SET_FIELD(callsite, line);
+               } else if (!strcmp(left, "ip")) {
+                       if (CTF_CALLSITE_FIELD_IS_SET(callsite, ip)) {
+                               fprintf(fd, "[error] %s: ip already declared in callsite declaration\n", __func__);
+                               ret = -EPERM;
+                               goto error;
+                       }
+                       ret = get_unary_unsigned(&node->u.ctf_expression.right, &callsite->ip);
+                       if (ret) {
+                               fprintf(fd, "[error] %s: unexpected unary expression for callsite ip\n", __func__);
+                               ret = -EINVAL;
+                               goto error;
+                       }
+                       CTF_CALLSITE_SET_FIELD(callsite, ip);
+               } else {
+                       fprintf(fd, "[warning] %s: attribute \"%s\" is unknown in callsite declaration.\n", __func__, left);
+               }
+
+error:
+               g_free(left);
+               break;
+       }
+       default:
+               return -EPERM;
+       /* TODO: declaration specifier should be added. */
+       }
+
+       return ret;
+}
+
+static
+int ctf_callsite_visit(FILE *fd, int depth, struct ctf_node *node, struct ctf_trace *trace)
+{
+       int ret = 0;
+       struct ctf_node *iter;
+       struct ctf_callsite *callsite;
+       struct ctf_callsite_dups *cs_dups;
+
+       callsite = g_new0(struct ctf_callsite, 1);
+       bt_list_for_each_entry(iter, &node->u.callsite.declaration_list, siblings) {
+               ret = ctf_callsite_declaration_visit(fd, depth + 1, iter, callsite, trace);
+               if (ret)
+                       goto error;
+       }
+       if (!CTF_CALLSITE_FIELD_IS_SET(callsite, name)) {
+               ret = -EPERM;
+               fprintf(fd, "[error] %s: missing name field in callsite declaration\n", __func__);
+               goto error;
+       }
+       if (!CTF_CALLSITE_FIELD_IS_SET(callsite, func)) {
+               ret = -EPERM;
+               fprintf(fd, "[error] %s: missing func field in callsite declaration\n", __func__);
+               goto error;
+       }
+       if (!CTF_CALLSITE_FIELD_IS_SET(callsite, file)) {
+               ret = -EPERM;
+               fprintf(fd, "[error] %s: missing file field in callsite declaration\n", __func__);
+               goto error;
+       }
+       if (!CTF_CALLSITE_FIELD_IS_SET(callsite, line)) {
+               ret = -EPERM;
+               fprintf(fd, "[error] %s: missing line field in callsite declaration\n", __func__);
+               goto error;
+       }
+
+       cs_dups = g_hash_table_lookup(trace->callsites,
+               (gpointer) (unsigned long) callsite->name);
+       if (!cs_dups) {
+               cs_dups = g_new0(struct ctf_callsite_dups, 1);
+               BT_INIT_LIST_HEAD(&cs_dups->head);
+               g_hash_table_insert(trace->callsites,
+                       (gpointer) (unsigned long) callsite->name, cs_dups);
+       }
+       bt_list_add_tail(&callsite->node, &cs_dups->head);
+       return 0;
+
+error:
+       g_free(callsite->func);
+       g_free(callsite->file);
+       g_free(callsite);
+       return ret;
+}
+
+static
+void callsite_free(gpointer data)
+{
+       struct ctf_callsite_dups *cs_dups = data;
+       struct ctf_callsite *callsite, *cs_n;
+
+       bt_list_for_each_entry_safe(callsite, cs_n, &cs_dups->head, node) {
+               g_free(callsite->func);
+               g_free(callsite->file);
+               g_free(callsite);
+       }
+       g_free(cs_dups);
+}
+
 static
 int ctf_env_declaration_visit(FILE *fd, int depth, struct ctf_node *node,
                struct ctf_trace *trace)
@@ -2475,6 +2676,7 @@ int ctf_env_declaration_visit(FILE *fd, int depth, struct ctf_node *node,
                        strncpy(env->procname, right, TRACER_ENV_LEN);
                        env->procname[TRACER_ENV_LEN - 1] = '\0';
                        printf_verbose("env.procname = \"%s\"\n", env->procname);
+                       g_free(right);
                } else if (!strcmp(left, "hostname")) {
                        char *right;
 
@@ -2490,6 +2692,7 @@ int ctf_env_declaration_visit(FILE *fd, int depth, struct ctf_node *node,
                        strncpy(env->hostname, right, TRACER_ENV_LEN);
                        env->hostname[TRACER_ENV_LEN - 1] = '\0';
                        printf_verbose("env.hostname = \"%s\"\n", env->hostname);
+                       g_free(right);
                } else if (!strcmp(left, "domain")) {
                        char *right;
 
@@ -2505,6 +2708,7 @@ int ctf_env_declaration_visit(FILE *fd, int depth, struct ctf_node *node,
                        strncpy(env->domain, right, TRACER_ENV_LEN);
                        env->domain[TRACER_ENV_LEN - 1] = '\0';
                        printf_verbose("env.domain = \"%s\"\n", env->domain);
+                       g_free(right);
                } else if (!strcmp(left, "sysname")) {
                        char *right;
 
@@ -2520,6 +2724,7 @@ int ctf_env_declaration_visit(FILE *fd, int depth, struct ctf_node *node,
                        strncpy(env->sysname, right, TRACER_ENV_LEN);
                        env->sysname[TRACER_ENV_LEN - 1] = '\0';
                        printf_verbose("env.sysname = \"%s\"\n", env->sysname);
+                       g_free(right);
                } else if (!strcmp(left, "kernel_release")) {
                        char *right;
 
@@ -2535,6 +2740,7 @@ int ctf_env_declaration_visit(FILE *fd, int depth, struct ctf_node *node,
                        strncpy(env->release, right, TRACER_ENV_LEN);
                        env->release[TRACER_ENV_LEN - 1] = '\0';
                        printf_verbose("env.release = \"%s\"\n", env->release);
+                       g_free(right);
                } else if (!strcmp(left, "kernel_version")) {
                        char *right;
 
@@ -2550,12 +2756,14 @@ int ctf_env_declaration_visit(FILE *fd, int depth, struct ctf_node *node,
                        strncpy(env->version, right, TRACER_ENV_LEN);
                        env->version[TRACER_ENV_LEN - 1] = '\0';
                        printf_verbose("env.version = \"%s\"\n", env->version);
+                       g_free(right);
                } else {
                        if (is_unary_string(&node->u.ctf_expression.right)) {
                                char *right;
 
                                right = concatenate_unary_strings(&node->u.ctf_expression.right);
                                printf_verbose("env.%s = \"%s\"\n", left, right);
+                               g_free(right);
                        } else if (is_unary_unsigned(&node->u.ctf_expression.right)) {
                                uint64_t v;
                                int ret;
@@ -2643,7 +2851,7 @@ int ctf_root_declaration_visit(FILE *fd, int depth, struct ctf_node *node, struc
                        node, trace->root_declaration_scope, trace);
                if (!declaration)
                        return -ENOMEM;
-               declaration_unref(declaration);
+               bt_declaration_unref(declaration);
                break;
        }
        default:
@@ -2653,7 +2861,6 @@ int ctf_root_declaration_visit(FILE *fd, int depth, struct ctf_node *node, struc
        return 0;
 }
 
-/* TODO: missing metadata "destroy" (memory leak) */
 int ctf_visitor_construct_metadata(FILE *fd, int depth, struct ctf_node *node,
                struct ctf_trace *trace, int byte_order)
 {
@@ -2665,9 +2872,11 @@ int ctf_visitor_construct_metadata(FILE *fd, int depth, struct ctf_node *node,
        trace->byte_order = byte_order;
        trace->clocks = g_hash_table_new_full(g_direct_hash, g_direct_equal,
                                NULL, clock_free);
+       trace->callsites = g_hash_table_new_full(g_direct_hash, g_direct_equal,
+                               NULL, callsite_free);
 
 retry:
-       trace->root_declaration_scope = new_declaration_scope(NULL);
+       trace->root_declaration_scope = bt_new_declaration_scope(NULL);
 
        switch (node->type) {
        case NODE_ROOT:
@@ -2701,7 +2910,7 @@ retry:
                bt_list_for_each_entry(iter, &node->u.root.trace, siblings) {
                        ret = ctf_trace_visit(fd, depth + 1, iter, trace);
                        if (ret == -EINTR) {
-                               free_declaration_scope(trace->root_declaration_scope);
+                               bt_free_declaration_scope(trace->root_declaration_scope);
                                /*
                                 * Need to restart creation of type
                                 * definitions, aliases and
@@ -2714,6 +2923,14 @@ retry:
                                goto error;
                        }
                }
+               bt_list_for_each_entry(iter, &node->u.root.callsite, siblings) {
+                       ret = ctf_callsite_visit(fd, depth + 1, iter,
+                                             trace);
+                       if (ret) {
+                               fprintf(fd, "[error] %s: callsite declaration error\n", __func__);
+                               goto error;
+                       }
+               }
                if (!trace->streams) {
                        fprintf(fd, "[error] %s: missing trace declaration\n", __func__);
                        ret = -EINVAL;
@@ -2754,7 +2971,111 @@ retry:
        return ret;
 
 error:
-       free_declaration_scope(trace->root_declaration_scope);
+       bt_free_declaration_scope(trace->root_declaration_scope);
+       g_hash_table_destroy(trace->callsites);
        g_hash_table_destroy(trace->clocks);
        return ret;
 }
+
+int ctf_destroy_metadata(struct ctf_trace *trace)
+{
+       int i;
+       struct ctf_file_stream *metadata_stream;
+
+       if (trace->streams) {
+               for (i = 0; i < trace->streams->len; i++) {
+                       struct ctf_stream_declaration *stream;
+                       int j;
+
+                       stream = g_ptr_array_index(trace->streams, i);
+                       if (!stream)
+                               continue;
+                       for (j = 0; j < stream->streams->len; j++) {
+                               struct ctf_stream_definition *stream_def;
+                               int k;
+
+                               stream_def = g_ptr_array_index(stream->streams, j);
+                               if (!stream_def)
+                                       continue;
+                               for (k = 0; k < stream_def->events_by_id->len; k++) {
+                                       struct ctf_event_definition *event;
+
+                                       event = g_ptr_array_index(stream_def->events_by_id, k);
+                                       if (!event)
+                                               continue;
+                                       if (&event->event_fields->p)
+                                               bt_definition_unref(&event->event_fields->p);
+                                       if (&event->event_context->p)
+                                               bt_definition_unref(&event->event_context->p);
+                                       g_free(event);
+                               }
+                               if (&stream_def->trace_packet_header->p)
+                                       bt_definition_unref(&stream_def->trace_packet_header->p);
+                               if (&stream_def->stream_event_header->p)
+                                       bt_definition_unref(&stream_def->stream_event_header->p);
+                               if (&stream_def->stream_packet_context->p)
+                                       bt_definition_unref(&stream_def->stream_packet_context->p);
+                               if (&stream_def->stream_event_context->p)
+                                       bt_definition_unref(&stream_def->stream_event_context->p);
+                               g_ptr_array_free(stream_def->events_by_id, TRUE);
+                               g_free(stream_def);
+                       }
+                       if (stream->event_header_decl)
+                               bt_declaration_unref(&stream->event_header_decl->p);
+                       if (stream->event_context_decl)
+                               bt_declaration_unref(&stream->event_context_decl->p);
+                       if (stream->packet_context_decl)
+                               bt_declaration_unref(&stream->packet_context_decl->p);
+                       g_ptr_array_free(stream->streams, TRUE);
+                       g_ptr_array_free(stream->events_by_id, TRUE);
+                       g_hash_table_destroy(stream->event_quark_to_id);
+                       bt_free_declaration_scope(stream->declaration_scope);
+                       g_free(stream);
+               }
+               g_ptr_array_free(trace->streams, TRUE);
+       }
+
+       if (trace->event_declarations) {
+               for (i = 0; i < trace->event_declarations->len; i++) {
+                       struct bt_ctf_event_decl *event_decl;
+                       struct ctf_event_declaration *event;
+
+                       event_decl = g_ptr_array_index(trace->event_declarations, i);
+                       if (event_decl->context_decl)
+                               g_ptr_array_free(event_decl->context_decl, TRUE);
+                       if (event_decl->fields_decl)
+                               g_ptr_array_free(event_decl->fields_decl, TRUE);
+                       if (event_decl->packet_header_decl)
+                               g_ptr_array_free(event_decl->packet_header_decl, TRUE);
+                       if (event_decl->event_context_decl)
+                               g_ptr_array_free(event_decl->event_context_decl, TRUE);
+                       if (event_decl->event_header_decl)
+                               g_ptr_array_free(event_decl->event_header_decl, TRUE);
+                       if (event_decl->packet_context_decl)
+                               g_ptr_array_free(event_decl->packet_context_decl, TRUE);
+
+                       event = &event_decl->parent;
+                       if (event->fields_decl)
+                               bt_declaration_unref(&event->fields_decl->p);
+                       if (event->context_decl)
+                               bt_declaration_unref(&event->context_decl->p);
+                       bt_free_declaration_scope(event->declaration_scope);
+
+                       g_free(event);
+               }
+               g_ptr_array_free(trace->event_declarations, TRUE);
+       }
+       if (trace->packet_header_decl)
+               bt_declaration_unref(&trace->packet_header_decl->p);
+
+       bt_free_declaration_scope(trace->root_declaration_scope);
+       bt_free_declaration_scope(trace->declaration_scope);
+
+       g_hash_table_destroy(trace->callsites);
+       g_hash_table_destroy(trace->clocks);
+
+       metadata_stream = container_of(trace->metadata, struct ctf_file_stream, parent);
+       g_free(metadata_stream);
+
+       return 0;
+}
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