+ }
+ struct_declaration = struct_declaration_new(declaration_scope,
+ min_align_value);
+ bt_list_for_each_entry(iter, declaration_list, siblings) {
+ 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),
+ struct_declaration,
+ declaration_scope);
+ assert(!ret);
+ }
+ return &struct_declaration->p;
+ }
+error_free_declaration:
+ struct_declaration->p.declaration_free(&struct_declaration->p);
+error:
+ return NULL;
+}
+
+static
+struct declaration *ctf_declaration_variant_visit(FILE *fd,
+ int depth, const char *name, const char *choice,
+ struct bt_list_head *declaration_list,
+ int has_body, struct declaration_scope *declaration_scope,
+ struct ctf_trace *trace)
+{
+ 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
+ * declaration scope. Don't take reference on variant
+ * declaration: ref is only taken upon definition.
+ */
+ if (!has_body) {
+ assert(name);
+ untagged_variant_declaration =
+ lookup_variant_declaration(g_quark_from_string(name),
+ declaration_scope);
+ } 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),
+ 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);
+ bt_list_for_each_entry(iter, declaration_list, siblings) {
+ 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),
+ untagged_variant_declaration,
+ declaration_scope);
+ assert(!ret);
+ }
+ }
+ /*
+ * if tagged, create tagged variant and return. else return
+ * untagged variant.
+ */
+ if (!choice) {
+ return &untagged_variant_declaration->p;
+ } else {
+ variant_declaration = variant_declaration_new(untagged_variant_declaration, choice);
+ if (!variant_declaration)
+ goto error;
+ declaration_unref(&untagged_variant_declaration->p);
+ return &variant_declaration->p;
+ }
+error:
+ untagged_variant_declaration->p.declaration_free(&untagged_variant_declaration->p);
+ return NULL;
+}
+
+static
+int ctf_enumerator_list_visit(FILE *fd, int depth,
+ struct ctf_node *enumerator,
+ struct declaration_enum *enum_declaration,
+ struct last_enum_value *last)
+{
+ GQuark q;
+ struct ctf_node *iter;
+
+ q = g_quark_from_string(enumerator->u.enumerator.id);
+ if (enum_declaration->integer_declaration->signedness) {
+ int64_t start, end;
+ int nr_vals = 0;
+
+ bt_list_for_each_entry(iter, &enumerator->u.enumerator.values, siblings) {
+ int64_t *target;
+
+ assert(iter->type == NODE_UNARY_EXPRESSION);
+ if (nr_vals == 0)
+ target = &start;
+ else
+ target = &end;
+
+ switch (iter->u.unary_expression.type) {
+ case UNARY_SIGNED_CONSTANT:
+ *target = iter->u.unary_expression.u.signed_constant;
+ break;
+ case UNARY_UNSIGNED_CONSTANT:
+ *target = iter->u.unary_expression.u.unsigned_constant;
+ break;
+ default:
+ fprintf(fd, "[error] %s: invalid enumerator\n", __func__);
+ return -EINVAL;
+ }
+ if (nr_vals > 1) {
+ fprintf(fd, "[error] %s: invalid enumerator\n", __func__);
+ return -EINVAL;
+ }
+ nr_vals++;
+ }
+ if (nr_vals == 0)
+ start = last->u.s;
+ if (nr_vals <= 1)
+ end = start;
+ last->u.s = end + 1;
+ enum_signed_insert(enum_declaration, start, end, q);
+ } else {
+ uint64_t start, end;
+ int nr_vals = 0;
+
+ bt_list_for_each_entry(iter, &enumerator->u.enumerator.values, siblings) {
+ uint64_t *target;
+
+ assert(iter->type == NODE_UNARY_EXPRESSION);
+ if (nr_vals == 0)
+ target = &start;
+ else
+ target = &end;
+
+ switch (iter->u.unary_expression.type) {
+ case UNARY_UNSIGNED_CONSTANT:
+ *target = iter->u.unary_expression.u.unsigned_constant;
+ break;
+ case UNARY_SIGNED_CONSTANT:
+ /*
+ * We don't accept signed constants for enums with unsigned
+ * container type.
+ */
+ fprintf(fd, "[error] %s: invalid enumerator (signed constant encountered, but enum container type is unsigned)\n", __func__);
+ return -EINVAL;
+ default:
+ fprintf(fd, "[error] %s: invalid enumerator\n", __func__);
+ return -EINVAL;
+ }
+ if (nr_vals > 1) {
+ fprintf(fd, "[error] %s: invalid enumerator\n", __func__);
+ return -EINVAL;
+ }
+ nr_vals++;
+ }
+ if (nr_vals == 0)
+ start = last->u.u;
+ if (nr_vals <= 1)
+ end = start;
+ last->u.u = end + 1;
+ enum_unsigned_insert(enum_declaration, start, end, q);
+ }
+ return 0;
+}
+
+static
+struct declaration *ctf_declaration_enum_visit(FILE *fd, int depth,
+ const char *name,
+ struct ctf_node *container_type,
+ struct bt_list_head *enumerator_list,
+ int has_body,
+ struct declaration_scope *declaration_scope,
+ struct ctf_trace *trace)
+{
+ struct declaration *declaration;
+ struct declaration_enum *enum_declaration;
+ struct declaration_integer *integer_declaration;
+ struct last_enum_value last_value;
+ struct ctf_node *iter;
+ GQuark dummy_id;
+ int ret;
+
+ /*
+ * For named enum (without body), lookup in
+ * declaration scope. Don't take reference on enum
+ * declaration: ref is only taken upon definition.
+ */
+ if (!has_body) {
+ assert(name);
+ enum_declaration =
+ lookup_enum_declaration(g_quark_from_string(name),
+ declaration_scope);
+ 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),
+ declaration_scope)) {
+
+ fprintf(fd, "[error] %s: enum %s already declared in scope\n", __func__, name);
+ return NULL;
+ }
+ }
+ if (!container_type) {
+ declaration = lookup_declaration(g_quark_from_static_string("int"),
+ declaration_scope);
+ if (!declaration) {
+ fprintf(fd, "[error] %s: \"int\" type declaration missing for enumeration\n", __func__);
+ return NULL;
+ }
+ } else {
+ declaration = ctf_type_declarator_visit(fd, depth,
+ container_type,
+ &dummy_id, NULL,
+ declaration_scope,
+ NULL, trace);
+ }
+ if (!declaration) {
+ fprintf(fd, "[error] %s: unable to create container type for enumeration\n", __func__);
+ return NULL;
+ }
+ if (declaration->id != CTF_TYPE_INTEGER) {
+ fprintf(fd, "[error] %s: container type for enumeration is not integer\n", __func__);
+ 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 */
+ 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) {
+ 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),
+ enum_declaration,
+ declaration_scope);
+ assert(!ret);
+ }
+ return &enum_declaration->p;
+ }
+error:
+ enum_declaration->p.declaration_free(&enum_declaration->p);
+ return NULL;
+}
+
+static
+struct declaration *ctf_declaration_type_specifier_visit(FILE *fd, int depth,
+ struct ctf_node *type_specifier_list,
+ struct declaration_scope *declaration_scope)
+{
+ GString *str;
+ struct declaration *declaration;
+ char *str_c;
+ int ret;
+ GQuark id_q;
+
+ str = g_string_new("");
+ ret = visit_type_specifier_list(fd, type_specifier_list, str);
+ if (ret)
+ return NULL;
+ 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);
+ return declaration;
+}
+
+/*
+ * Returns 0/1 boolean, or < 0 on error.
+ */
+static
+int get_boolean(FILE *fd, int depth, struct ctf_node *unary_expression)
+{
+ if (unary_expression->type != NODE_UNARY_EXPRESSION) {
+ fprintf(fd, "[error] %s: expecting unary expression\n",
+ __func__);
+ return -EINVAL;
+ }
+ switch (unary_expression->u.unary_expression.type) {
+ case UNARY_UNSIGNED_CONSTANT:
+ if (unary_expression->u.unary_expression.u.unsigned_constant == 0)
+ return 0;
+ else
+ return 1;
+ case UNARY_SIGNED_CONSTANT:
+ if (unary_expression->u.unary_expression.u.signed_constant == 0)
+ return 0;
+ else
+ return 1;
+ case UNARY_STRING:
+ if (!strcmp(unary_expression->u.unary_expression.u.string, "true"))
+ return 1;
+ else if (!strcmp(unary_expression->u.unary_expression.u.string, "TRUE"))
+ return 1;
+ else if (!strcmp(unary_expression->u.unary_expression.u.string, "false"))
+ return 0;
+ else if (!strcmp(unary_expression->u.unary_expression.u.string, "FALSE"))
+ return 0;
+ else {
+ fprintf(fd, "[error] %s: unexpected string \"%s\"\n",
+ __func__, unary_expression->u.unary_expression.u.string);
+ return -EINVAL;
+ }
+ break;
+ default:
+ fprintf(fd, "[error] %s: unexpected unary expression type\n",
+ __func__);
+ return -EINVAL;
+ }
+
+}
+
+static
+int get_trace_byte_order(FILE *fd, int depth, struct ctf_node *unary_expression)
+{
+ int byte_order;
+
+ if (unary_expression->u.unary_expression.type != UNARY_STRING) {
+ fprintf(fd, "[error] %s: byte_order: expecting string\n",
+ __func__);
+ return -EINVAL;
+ }
+ if (!strcmp(unary_expression->u.unary_expression.u.string, "be"))
+ byte_order = BIG_ENDIAN;
+ else if (!strcmp(unary_expression->u.unary_expression.u.string, "le"))
+ byte_order = LITTLE_ENDIAN;
+ else {
+ fprintf(fd, "[error] %s: unexpected string \"%s\". Should be \"native\", \"network\", \"be\" or \"le\".\n",
+ __func__, unary_expression->u.unary_expression.u.string);
+ return -EINVAL;
+ }
+ return byte_order;
+}
+
+static
+int get_byte_order(FILE *fd, int depth, struct ctf_node *unary_expression,
+ struct ctf_trace *trace)
+{
+ int byte_order;
+
+ if (unary_expression->u.unary_expression.type != UNARY_STRING) {
+ fprintf(fd, "[error] %s: byte_order: expecting string\n",
+ __func__);
+ return -EINVAL;
+ }
+ if (!strcmp(unary_expression->u.unary_expression.u.string, "native"))
+ byte_order = trace->byte_order;
+ else if (!strcmp(unary_expression->u.unary_expression.u.string, "network"))
+ byte_order = BIG_ENDIAN;
+ else if (!strcmp(unary_expression->u.unary_expression.u.string, "be"))
+ byte_order = BIG_ENDIAN;
+ else if (!strcmp(unary_expression->u.unary_expression.u.string, "le"))
+ byte_order = LITTLE_ENDIAN;
+ else {
+ fprintf(fd, "[error] %s: unexpected string \"%s\". Should be \"native\", \"network\", \"be\" or \"le\".\n",
+ __func__, unary_expression->u.unary_expression.u.string);
+ return -EINVAL;
+ }
+ return byte_order;
+}
+
+static
+struct declaration *ctf_declaration_integer_visit(FILE *fd, int depth,
+ struct bt_list_head *expressions,
+ struct ctf_trace *trace)
+{
+ struct ctf_node *expression;
+ uint64_t alignment = 1, size = 0;
+ int byte_order = trace->byte_order;
+ int signedness = 0;
+ int has_alignment = 0, has_size = 0;
+ int base = 0;
+ enum ctf_string_encoding encoding = CTF_STRING_NONE;
+ struct ctf_clock *clock = NULL;
+ struct declaration_integer *integer_declaration;
+
+ bt_list_for_each_entry(expression, expressions, siblings) {
+ struct ctf_node *left, *right;
+
+ left = _bt_list_first_entry(&expression->u.ctf_expression.left, struct ctf_node, siblings);
+ right = _bt_list_first_entry(&expression->u.ctf_expression.right, struct ctf_node, siblings);
+ assert(left->u.unary_expression.type == UNARY_STRING);
+ if (!strcmp(left->u.unary_expression.u.string, "signed")) {
+ signedness = get_boolean(fd, depth, right);
+ if (signedness < 0)
+ return NULL;
+ } else if (!strcmp(left->u.unary_expression.u.string, "byte_order")) {
+ byte_order = get_byte_order(fd, depth, right, trace);
+ if (byte_order < 0)
+ return NULL;
+ } else if (!strcmp(left->u.unary_expression.u.string, "size")) {
+ if (right->u.unary_expression.type != UNARY_UNSIGNED_CONSTANT) {
+ fprintf(fd, "[error] %s: size: expecting unsigned constant\n",
+ __func__);
+ return NULL;
+ }
+ size = right->u.unary_expression.u.unsigned_constant;
+ has_size = 1;
+ } else if (!strcmp(left->u.unary_expression.u.string, "align")) {
+ if (right->u.unary_expression.type != UNARY_UNSIGNED_CONSTANT) {
+ fprintf(fd, "[error] %s: align: expecting unsigned constant\n",
+ __func__);
+ return NULL;
+ }
+ alignment = right->u.unary_expression.u.unsigned_constant;
+ /* Make sure alignment is a power of two */
+ if (alignment == 0 || (alignment & (alignment - 1)) != 0) {
+ fprintf(fd, "[error] %s: align: expecting power of two\n",
+ __func__);
+ return NULL;
+ }
+ has_alignment = 1;
+ } else if (!strcmp(left->u.unary_expression.u.string, "base")) {
+ switch (right->u.unary_expression.type) {
+ case UNARY_UNSIGNED_CONSTANT:
+ switch (right->u.unary_expression.u.unsigned_constant) {
+ case 2:
+ case 8:
+ case 10:
+ case 16:
+ base = right->u.unary_expression.u.unsigned_constant;
+ break;
+ default:
+ fprintf(fd, "[error] %s: base not supported (%" PRIu64 ")\n",
+ __func__, right->u.unary_expression.u.unsigned_constant);
+ return NULL;
+ }
+ break;
+ case UNARY_STRING:
+ {
+ char *s_right = concatenate_unary_strings(&expression->u.ctf_expression.right);
+ if (!s_right) {
+ fprintf(fd, "[error] %s: unexpected unary expression for integer base\n", __func__);
+ g_free(s_right);
+ return NULL;
+ }
+ if (!strcmp(s_right, "decimal") || !strcmp(s_right, "dec") || !strcmp(s_right, "d")
+ || !strcmp(s_right, "i") || !strcmp(s_right, "u")) {
+ base = 10;
+ } else if (!strcmp(s_right, "hexadecimal") || !strcmp(s_right, "hex")
+ || !strcmp(s_right, "x") || !strcmp(s_right, "X")
+ || !strcmp(s_right, "p")) {
+ base = 16;
+ } else if (!strcmp(s_right, "octal") || !strcmp(s_right, "oct")
+ || !strcmp(s_right, "o")) {
+ base = 8;
+ } else if (!strcmp(s_right, "binary") || !strcmp(s_right, "b")) {
+ base = 2;
+ } else {
+ fprintf(fd, "[error] %s: unexpected expression for integer base (%s)\n", __func__, s_right);
+ g_free(s_right);
+ return NULL;
+ }
+
+ g_free(s_right);
+ break;
+ }
+ default:
+ fprintf(fd, "[error] %s: base: expecting unsigned constant or unary string\n",
+ __func__);
+ return NULL;
+ }
+ } else if (!strcmp(left->u.unary_expression.u.string, "encoding")) {
+ char *s_right;
+
+ if (right->u.unary_expression.type != UNARY_STRING) {
+ fprintf(fd, "[error] %s: encoding: expecting unary string\n",
+ __func__);
+ return NULL;
+ }
+ s_right = concatenate_unary_strings(&expression->u.ctf_expression.right);
+ if (!s_right) {
+ fprintf(fd, "[error] %s: unexpected unary expression for integer base\n", __func__);
+ g_free(s_right);
+ return NULL;
+ }
+ if (!strcmp(s_right, "UTF8")
+ || !strcmp(s_right, "utf8")
+ || !strcmp(s_right, "utf-8")
+ || !strcmp(s_right, "UTF-8"))
+ encoding = CTF_STRING_UTF8;
+ else if (!strcmp(s_right, "ASCII")
+ || !strcmp(s_right, "ascii"))
+ encoding = CTF_STRING_ASCII;
+ else if (!strcmp(s_right, "none"))
+ encoding = CTF_STRING_NONE;
+ else {
+ fprintf(fd, "[error] %s: unknown string encoding \"%s\"\n", __func__, s_right);
+ g_free(s_right);
+ return NULL;
+ }
+ g_free(s_right);
+ } else if (!strcmp(left->u.unary_expression.u.string, "map")) {
+ GQuark clock_name;
+
+ if (right->u.unary_expression.type != UNARY_STRING) {
+ fprintf(fd, "[error] %s: map: expecting identifier\n",
+ __func__);
+ return NULL;
+ }
+ /* currently only support clock.name.value */
+ clock_name = get_map_clock_name_value(&expression->u.ctf_expression.right);
+ if (!clock_name) {
+ char *s_right;
+
+ s_right = concatenate_unary_strings(&expression->u.ctf_expression.right);
+ if (!s_right) {
+ fprintf(fd, "[error] %s: unexpected unary expression for integer map\n", __func__);
+ g_free(s_right);
+ return NULL;
+ }
+ fprintf(fd, "[warning] %s: unknown map %s in integer declaration\n", __func__,
+ s_right);
+ g_free(s_right);
+ continue;
+ }
+ clock = trace_clock_lookup(trace, clock_name);
+ if (!clock) {
+ fprintf(fd, "[error] %s: map: unable to find clock %s declaration\n",
+ __func__, g_quark_to_string(clock_name));
+ return NULL;
+ }
+ } else {
+ fprintf(fd, "[warning] %s: unknown attribute name %s\n",
+ __func__, left->u.unary_expression.u.string);
+ /* Fall-through after warning */
+ }
+ }
+ if (!has_size) {
+ fprintf(fd, "[error] %s: missing size attribute\n", __func__);
+ return NULL;
+ }
+ if (!has_alignment) {
+ if (size % CHAR_BIT) {
+ /* bit-packed alignment */
+ alignment = 1;
+ } else {
+ /* byte-packed alignment */
+ alignment = CHAR_BIT;
+ }
+ }
+ integer_declaration = integer_declaration_new(size,
+ byte_order, signedness, alignment,
+ base, encoding, clock);
+ return &integer_declaration->p;
+}
+
+static
+struct declaration *ctf_declaration_floating_point_visit(FILE *fd, int depth,
+ struct bt_list_head *expressions,
+ struct ctf_trace *trace)
+{
+ struct ctf_node *expression;
+ uint64_t alignment = 1, exp_dig = 0, mant_dig = 0,
+ byte_order = trace->byte_order;
+ int has_alignment = 0, has_exp_dig = 0, has_mant_dig = 0;
+ struct declaration_float *float_declaration;
+
+ bt_list_for_each_entry(expression, expressions, siblings) {
+ struct ctf_node *left, *right;
+
+ left = _bt_list_first_entry(&expression->u.ctf_expression.left, struct ctf_node, siblings);
+ right = _bt_list_first_entry(&expression->u.ctf_expression.right, struct ctf_node, siblings);
+ assert(left->u.unary_expression.type == UNARY_STRING);
+ if (!strcmp(left->u.unary_expression.u.string, "byte_order")) {
+ byte_order = get_byte_order(fd, depth, right, trace);
+ if (byte_order < 0)
+ return NULL;
+ } else if (!strcmp(left->u.unary_expression.u.string, "exp_dig")) {
+ if (right->u.unary_expression.type != UNARY_UNSIGNED_CONSTANT) {
+ fprintf(fd, "[error] %s: exp_dig: expecting unsigned constant\n",
+ __func__);
+ return NULL;
+ }
+ exp_dig = right->u.unary_expression.u.unsigned_constant;
+ has_exp_dig = 1;
+ } else if (!strcmp(left->u.unary_expression.u.string, "mant_dig")) {
+ if (right->u.unary_expression.type != UNARY_UNSIGNED_CONSTANT) {
+ fprintf(fd, "[error] %s: mant_dig: expecting unsigned constant\n",
+ __func__);
+ return NULL;
+ }
+ mant_dig = right->u.unary_expression.u.unsigned_constant;
+ has_mant_dig = 1;
+ } else if (!strcmp(left->u.unary_expression.u.string, "align")) {
+ if (right->u.unary_expression.type != UNARY_UNSIGNED_CONSTANT) {
+ fprintf(fd, "[error] %s: align: expecting unsigned constant\n",
+ __func__);
+ return NULL;
+ }
+ alignment = right->u.unary_expression.u.unsigned_constant;
+ /* Make sure alignment is a power of two */
+ if (alignment == 0 || (alignment & (alignment - 1)) != 0) {
+ fprintf(fd, "[error] %s: align: expecting power of two\n",
+ __func__);
+ return NULL;
+ }
+ has_alignment = 1;
+ } else {
+ fprintf(fd, "[warning] %s: unknown attribute name %s\n",
+ __func__, left->u.unary_expression.u.string);
+ /* Fall-through after warning */
+ }
+ }
+ if (!has_mant_dig) {
+ fprintf(fd, "[error] %s: missing mant_dig attribute\n", __func__);
+ return NULL;
+ }
+ if (!has_exp_dig) {
+ fprintf(fd, "[error] %s: missing exp_dig attribute\n", __func__);
+ return NULL;
+ }
+ if (!has_alignment) {
+ if ((mant_dig + exp_dig) % CHAR_BIT) {
+ /* bit-packed alignment */
+ alignment = 1;
+ } else {
+ /* byte-packed alignment */
+ alignment = CHAR_BIT;
+ }
+ }
+ float_declaration = float_declaration_new(mant_dig, exp_dig,
+ byte_order, alignment);
+ return &float_declaration->p;
+}
+
+static
+struct declaration *ctf_declaration_string_visit(FILE *fd, int depth,
+ struct bt_list_head *expressions,
+ struct ctf_trace *trace)
+{
+ struct ctf_node *expression;
+ const char *encoding_c = NULL;
+ enum ctf_string_encoding encoding = CTF_STRING_UTF8;
+ struct declaration_string *string_declaration;
+
+ bt_list_for_each_entry(expression, expressions, siblings) {
+ struct ctf_node *left, *right;
+
+ left = _bt_list_first_entry(&expression->u.ctf_expression.left, struct ctf_node, siblings);
+ right = _bt_list_first_entry(&expression->u.ctf_expression.right, struct ctf_node, siblings);
+ assert(left->u.unary_expression.type == UNARY_STRING);
+ if (!strcmp(left->u.unary_expression.u.string, "encoding")) {
+ if (right->u.unary_expression.type != UNARY_STRING) {
+ fprintf(fd, "[error] %s: encoding: expecting string\n",
+ __func__);
+ return NULL;
+ }
+ encoding_c = right->u.unary_expression.u.string;
+ } else {
+ fprintf(fd, "[warning] %s: unknown attribute name %s\n",
+ __func__, left->u.unary_expression.u.string);
+ /* Fall-through after warning */
+ }
+ }
+ if (encoding_c && !strcmp(encoding_c, "ASCII"))
+ encoding = CTF_STRING_ASCII;
+ string_declaration = string_declaration_new(encoding);
+ return &string_declaration->p;
+}
+
+
+static
+struct declaration *ctf_type_specifier_list_visit(FILE *fd,
+ int depth, struct ctf_node *type_specifier_list,
+ struct declaration_scope *declaration_scope,
+ struct ctf_trace *trace)
+{
+ struct ctf_node *first;
+ struct ctf_node *node;
+
+ assert(type_specifier_list->type == NODE_TYPE_SPECIFIER_LIST);
+
+ first = _bt_list_first_entry(&type_specifier_list->u.type_specifier_list.head, struct ctf_node, siblings);
+
+ assert(first->type == NODE_TYPE_SPECIFIER);
+
+ node = first->u.type_specifier.node;
+
+ switch (first->u.type_specifier.type) {
+ case TYPESPEC_FLOATING_POINT:
+ return ctf_declaration_floating_point_visit(fd, depth,
+ &node->u.floating_point.expressions, trace);
+ case TYPESPEC_INTEGER:
+ return ctf_declaration_integer_visit(fd, depth,
+ &node->u.integer.expressions, trace);
+ case TYPESPEC_STRING:
+ return ctf_declaration_string_visit(fd, depth,
+ &node->u.string.expressions, trace);
+ case TYPESPEC_STRUCT:
+ return ctf_declaration_struct_visit(fd, depth,
+ node->u._struct.name,
+ &node->u._struct.declaration_list,
+ node->u._struct.has_body,
+ &node->u._struct.min_align,
+ declaration_scope,
+ trace);
+ case TYPESPEC_VARIANT:
+ return ctf_declaration_variant_visit(fd, depth,
+ node->u.variant.name,
+ node->u.variant.choice,
+ &node->u.variant.declaration_list,
+ node->u.variant.has_body,
+ declaration_scope,
+ trace);
+ case TYPESPEC_ENUM:
+ return ctf_declaration_enum_visit(fd, depth,
+ node->u._enum.enum_id,
+ node->u._enum.container_type,
+ &node->u._enum.enumerator_list,
+ node->u._enum.has_body,
+ declaration_scope,
+ trace);
+
+ case TYPESPEC_VOID:
+ case TYPESPEC_CHAR:
+ case TYPESPEC_SHORT:
+ case TYPESPEC_INT:
+ case TYPESPEC_LONG:
+ case TYPESPEC_FLOAT:
+ case TYPESPEC_DOUBLE:
+ case TYPESPEC_SIGNED:
+ case TYPESPEC_UNSIGNED:
+ case TYPESPEC_BOOL:
+ case TYPESPEC_COMPLEX:
+ case TYPESPEC_IMAGINARY:
+ case TYPESPEC_CONST:
+ case TYPESPEC_ID_TYPE:
+ return ctf_declaration_type_specifier_visit(fd, depth,
+ type_specifier_list, declaration_scope);
+ default:
+ fprintf(fd, "[error] %s: unexpected node type %d\n", __func__, (int) first->u.type_specifier.type);
+ return NULL;
+ }
+}
+
+static
+int ctf_event_declaration_visit(FILE *fd, int depth, struct ctf_node *node, struct ctf_event_declaration *event, struct ctf_trace *trace)
+{
+ int ret = 0;
+
+ switch (node->type) {
+ case NODE_TYPEDEF:
+ ret = ctf_typedef_visit(fd, depth + 1,
+ event->declaration_scope,
+ node->u._typedef.type_specifier_list,
+ &node->u._typedef.type_declarators,
+ trace);
+ if (ret)
+ return ret;
+ break;
+ case NODE_TYPEALIAS:
+ ret = ctf_typealias_visit(fd, depth + 1,
+ event->declaration_scope,
+ node->u.typealias.target, node->u.typealias.alias,
+ trace);
+ if (ret)
+ return ret;
+ break;
+ case NODE_CTF_EXPRESSION:
+ {
+ char *left;
+
+ left = concatenate_unary_strings(&node->u.ctf_expression.left);
+ if (!strcmp(left, "name")) {
+ char *right;
+
+ if (CTF_EVENT_FIELD_IS_SET(event, name)) {
+ fprintf(fd, "[error] %s: name already declared in event 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 event name\n", __func__);
+ ret = -EINVAL;
+ goto error;
+ }
+ event->name = g_quark_from_string(right);
+ g_free(right);
+ CTF_EVENT_SET_FIELD(event, name);
+ } else if (!strcmp(left, "id")) {
+ if (CTF_EVENT_FIELD_IS_SET(event, id)) {
+ fprintf(fd, "[error] %s: id already declared in event declaration\n", __func__);
+ ret = -EPERM;
+ goto error;
+ }
+ ret = get_unary_unsigned(&node->u.ctf_expression.right, &event->id);
+ if (ret) {
+ fprintf(fd, "[error] %s: unexpected unary expression for event id\n", __func__);
+ ret = -EINVAL;
+ goto error;
+ }
+ CTF_EVENT_SET_FIELD(event, id);
+ } else if (!strcmp(left, "stream_id")) {
+ if (CTF_EVENT_FIELD_IS_SET(event, stream_id)) {
+ fprintf(fd, "[error] %s: stream_id already declared in event declaration\n", __func__);
+ ret = -EPERM;
+ goto error;
+ }
+ ret = get_unary_unsigned(&node->u.ctf_expression.right, &event->stream_id);
+ if (ret) {
+ fprintf(fd, "[error] %s: unexpected unary expression for event stream_id\n", __func__);
+ ret = -EINVAL;
+ goto error;
+ }
+ event->stream = trace_stream_lookup(trace, event->stream_id);
+ if (!event->stream) {
+ fprintf(fd, "[error] %s: stream id %" PRIu64 " cannot be found\n", __func__, event->stream_id);
+ ret = -EINVAL;
+ goto error;
+ }
+ CTF_EVENT_SET_FIELD(event, stream_id);
+ } else if (!strcmp(left, "context")) {
+ struct declaration *declaration;
+
+ if (event->context_decl) {
+ fprintf(fd, "[error] %s: context already declared in event declaration\n", __func__);
+ ret = -EINVAL;
+ goto error;
+ }
+ declaration = ctf_type_specifier_list_visit(fd, depth,
+ _bt_list_first_entry(&node->u.ctf_expression.right,
+ struct ctf_node, siblings),
+ event->declaration_scope, trace);
+ if (!declaration) {
+ ret = -EPERM;
+ goto error;
+ }
+ if (declaration->id != CTF_TYPE_STRUCT) {
+ ret = -EPERM;
+ goto error;
+ }
+ event->context_decl = container_of(declaration, struct declaration_struct, p);
+ } else if (!strcmp(left, "fields")) {
+ struct declaration *declaration;
+
+ if (event->fields_decl) {
+ fprintf(fd, "[error] %s: fields already declared in event declaration\n", __func__);
+ ret = -EINVAL;
+ goto error;
+ }
+ declaration = ctf_type_specifier_list_visit(fd, depth,
+ _bt_list_first_entry(&node->u.ctf_expression.right,
+ struct ctf_node, siblings),
+ event->declaration_scope, trace);
+ if (!declaration) {
+ ret = -EPERM;
+ goto error;
+ }
+ if (declaration->id != CTF_TYPE_STRUCT) {
+ ret = -EPERM;
+ goto error;
+ }
+ event->fields_decl = container_of(declaration, struct declaration_struct, p);
+ } else if (!strcmp(left, "loglevel")) {
+ int64_t loglevel = -1;
+
+ if (CTF_EVENT_FIELD_IS_SET(event, loglevel)) {
+ fprintf(fd, "[error] %s: loglevel already declared in event declaration\n", __func__);
+ ret = -EPERM;
+ goto error;
+ }
+ ret = get_unary_signed(&node->u.ctf_expression.right, &loglevel);
+ if (ret) {
+ fprintf(fd, "[error] %s: unexpected unary expression for event loglevel\n", __func__);
+ ret = -EINVAL;
+ goto error;
+ }
+ event->loglevel = (int) loglevel;
+ CTF_EVENT_SET_FIELD(event, loglevel);
+ } else if (!strcmp(left, "model.emf.uri")) {
+ char *right;
+
+ if (CTF_EVENT_FIELD_IS_SET(event, model_emf_uri)) {
+ fprintf(fd, "[error] %s: model.emf.uri already declared in event 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 event model.emf.uri\n", __func__);
+ ret = -EINVAL;
+ goto error;
+ }
+ event->model_emf_uri = g_quark_from_string(right);
+ g_free(right);
+ CTF_EVENT_SET_FIELD(event, model_emf_uri);
+ } else {
+ fprintf(fd, "[warning] %s: attribute \"%s\" is unknown in event declaration.\n", __func__, left);
+ /* Fall-through after warning */
+ }
+error:
+ g_free(left);
+ break;
+ }
+ default:
+ return -EPERM;
+ /* TODO: declaration specifier should be added. */
+ }
+
+ return ret;
+}
+
+static
+int ctf_event_visit(FILE *fd, int depth, struct ctf_node *node,
+ struct declaration_scope *parent_declaration_scope, struct ctf_trace *trace)
+{
+ int ret = 0;
+ struct ctf_node *iter;
+ struct ctf_event_declaration *event;
+ struct bt_ctf_event_decl *event_decl;
+
+ event_decl = g_new0(struct bt_ctf_event_decl, 1);
+ event = &event_decl->parent;
+ event->declaration_scope = 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);
+ if (ret)
+ goto error;
+ }
+ if (!CTF_EVENT_FIELD_IS_SET(event, name)) {
+ ret = -EPERM;
+ fprintf(fd, "[error] %s: missing name field in event declaration\n", __func__);
+ goto error;
+ }
+ if (!CTF_EVENT_FIELD_IS_SET(event, stream_id)) {
+ /* Allow missing stream_id if there is only a single stream */
+ switch (trace->streams->len) {
+ case 0: /* Create stream if there was none. */
+ ret = ctf_stream_visit(fd, depth, NULL, trace->root_declaration_scope, trace);
+ if (ret)
+ goto error;
+ /* Fall-through */
+ case 1:
+ event->stream_id = 0;
+ event->stream = trace_stream_lookup(trace, event->stream_id);
+ break;
+ default:
+ ret = -EPERM;
+ fprintf(fd, "[error] %s: missing stream_id field in event declaration\n", __func__);
+ goto error;
+ }
+ }
+ /* Allow only one event without id per stream */
+ if (!CTF_EVENT_FIELD_IS_SET(event, id)
+ && event->stream->events_by_id->len != 0) {
+ ret = -EPERM;
+ fprintf(fd, "[error] %s: missing id field in event declaration\n", __func__);
+ goto error;
+ }
+ if (event->stream->events_by_id->len <= event->id)
+ g_ptr_array_set_size(event->stream->events_by_id, event->id + 1);
+ g_ptr_array_index(event->stream->events_by_id, event->id) = event;
+ g_hash_table_insert(event->stream->event_quark_to_id,
+ (gpointer) (unsigned long) event->name,
+ &event->id);
+ g_ptr_array_add(trace->event_declarations, event_decl);
+ return 0;
+
+error:
+ if (event->fields_decl)
+ declaration_unref(&event->fields_decl->p);
+ if (event->context_decl)
+ declaration_unref(&event->context_decl->p);
+ free_declaration_scope(event->declaration_scope);
+ g_free(event_decl);
+ return ret;
+}
+
+
+static
+int ctf_stream_declaration_visit(FILE *fd, int depth, struct ctf_node *node, struct ctf_stream_declaration *stream, struct ctf_trace *trace)
+{
+ int ret = 0;
+
+ switch (node->type) {
+ case NODE_TYPEDEF:
+ ret = ctf_typedef_visit(fd, depth + 1,
+ stream->declaration_scope,
+ node->u._typedef.type_specifier_list,
+ &node->u._typedef.type_declarators,
+ trace);
+ if (ret)
+ return ret;
+ break;
+ case NODE_TYPEALIAS:
+ ret = ctf_typealias_visit(fd, depth + 1,
+ stream->declaration_scope,
+ node->u.typealias.target, node->u.typealias.alias,
+ trace);
+ if (ret)
+ return ret;
+ break;
+ case NODE_CTF_EXPRESSION:
+ {
+ char *left;
+
+ left = concatenate_unary_strings(&node->u.ctf_expression.left);
+ if (!strcmp(left, "id")) {
+ if (CTF_STREAM_FIELD_IS_SET(stream, stream_id)) {
+ fprintf(fd, "[error] %s: id already declared in stream declaration\n", __func__);
+ ret = -EPERM;
+ goto error;
+ }
+ ret = get_unary_unsigned(&node->u.ctf_expression.right, &stream->stream_id);
+ if (ret) {
+ fprintf(fd, "[error] %s: unexpected unary expression for stream id\n", __func__);
+ ret = -EINVAL;
+ goto error;
+ }
+ CTF_STREAM_SET_FIELD(stream, stream_id);
+ } else if (!strcmp(left, "event.header")) {
+ struct declaration *declaration;
+
+ if (stream->event_header_decl) {
+ fprintf(fd, "[error] %s: event.header already declared in stream declaration\n", __func__);
+ ret = -EINVAL;
+ goto error;
+ }
+ declaration = ctf_type_specifier_list_visit(fd, depth,
+ _bt_list_first_entry(&node->u.ctf_expression.right,
+ struct ctf_node, siblings),
+ stream->declaration_scope, trace);
+ if (!declaration) {
+ ret = -EPERM;
+ goto error;
+ }
+ if (declaration->id != CTF_TYPE_STRUCT) {
+ ret = -EPERM;
+ goto error;
+ }
+ stream->event_header_decl = container_of(declaration, struct declaration_struct, p);
+ } else if (!strcmp(left, "event.context")) {
+ struct declaration *declaration;
+
+ if (stream->event_context_decl) {
+ fprintf(fd, "[error] %s: event.context already declared in stream declaration\n", __func__);
+ ret = -EINVAL;
+ goto error;
+ }
+ declaration = ctf_type_specifier_list_visit(fd, depth,
+ _bt_list_first_entry(&node->u.ctf_expression.right,
+ struct ctf_node, siblings),
+ stream->declaration_scope, trace);
+ if (!declaration) {
+ ret = -EPERM;
+ goto error;
+ }
+ if (declaration->id != CTF_TYPE_STRUCT) {
+ ret = -EPERM;
+ goto error;
+ }
+ stream->event_context_decl = container_of(declaration, struct declaration_struct, p);
+ } else if (!strcmp(left, "packet.context")) {
+ struct declaration *declaration;
+
+ if (stream->packet_context_decl) {
+ fprintf(fd, "[error] %s: packet.context already declared in stream declaration\n", __func__);
+ ret = -EINVAL;
+ goto error;
+ }
+ declaration = ctf_type_specifier_list_visit(fd, depth,
+ _bt_list_first_entry(&node->u.ctf_expression.right,
+ struct ctf_node, siblings),
+ stream->declaration_scope, trace);
+ if (!declaration) {
+ ret = -EPERM;
+ goto error;
+ }
+ if (declaration->id != CTF_TYPE_STRUCT) {
+ ret = -EPERM;
+ goto error;
+ }
+ stream->packet_context_decl = container_of(declaration, struct declaration_struct, p);
+ } else {
+ fprintf(fd, "[warning] %s: attribute \"%s\" is unknown in stream declaration.\n", __func__, left);
+ /* Fall-through after warning */
+ }
+
+error:
+ g_free(left);
+ break;
+ }
+ default:
+ return -EPERM;
+ /* TODO: declaration specifier should be added. */
+ }
+
+ return ret;
+}
+
+static
+int ctf_stream_visit(FILE *fd, int depth, struct ctf_node *node,
+ struct declaration_scope *parent_declaration_scope, struct ctf_trace *trace)
+{
+ int ret = 0;
+ struct ctf_node *iter;
+ struct ctf_stream_declaration *stream;
+
+ stream = g_new0(struct ctf_stream_declaration, 1);
+ stream->declaration_scope = 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();
+ if (node) {
+ bt_list_for_each_entry(iter, &node->u.stream.declaration_list, siblings) {
+ ret = ctf_stream_declaration_visit(fd, depth + 1, iter, stream, trace);
+ if (ret)
+ goto error;
+ }
+ }
+ 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) {
+ 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;
+ }
+ } else {
+ /* Allow only one id-less stream */
+ if (trace->streams->len != 0) {
+ ret = -EPERM;
+ fprintf(fd, "[error] %s: missing id field in stream declaration\n", __func__);
+ goto error;
+ }
+ stream->stream_id = 0;
+ }
+ if (trace->streams->len <= stream->stream_id)
+ g_ptr_array_set_size(trace->streams, stream->stream_id + 1);
+ g_ptr_array_index(trace->streams, stream->stream_id) = stream;
+ stream->trace = trace;
+
+ return 0;
+
+error:
+ if (stream->event_header_decl)
+ declaration_unref(&stream->event_header_decl->p);
+ if (stream->event_context_decl)
+ declaration_unref(&stream->event_context_decl->p);
+ if (stream->packet_context_decl)
+ 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);
+ g_free(stream);
+ return ret;
+}
+
+static
+int ctf_trace_declaration_visit(FILE *fd, int depth, struct ctf_node *node, struct ctf_trace *trace)
+{
+ int ret = 0;
+
+ switch (node->type) {
+ case NODE_TYPEDEF:
+ ret = ctf_typedef_visit(fd, depth + 1,
+ trace->declaration_scope,
+ node->u._typedef.type_specifier_list,
+ &node->u._typedef.type_declarators,
+ trace);
+ if (ret)
+ return ret;
+ break;
+ case NODE_TYPEALIAS:
+ ret = ctf_typealias_visit(fd, depth + 1,
+ trace->declaration_scope,
+ node->u.typealias.target, node->u.typealias.alias,
+ trace);
+ if (ret)
+ return ret;
+ break;
+ case NODE_CTF_EXPRESSION:
+ {
+ char *left;
+
+ left = concatenate_unary_strings(&node->u.ctf_expression.left);
+ if (!strcmp(left, "major")) {
+ if (CTF_TRACE_FIELD_IS_SET(trace, major)) {
+ fprintf(fd, "[error] %s: major already declared in trace declaration\n", __func__);
+ ret = -EPERM;
+ goto error;
+ }
+ ret = get_unary_unsigned(&node->u.ctf_expression.right, &trace->major);
+ if (ret) {
+ fprintf(fd, "[error] %s: unexpected unary expression for trace major number\n", __func__);
+ ret = -EINVAL;
+ goto error;
+ }
+ CTF_TRACE_SET_FIELD(trace, major);
+ } else if (!strcmp(left, "minor")) {
+ if (CTF_TRACE_FIELD_IS_SET(trace, minor)) {
+ fprintf(fd, "[error] %s: minor already declared in trace declaration\n", __func__);
+ ret = -EPERM;
+ goto error;
+ }
+ ret = get_unary_unsigned(&node->u.ctf_expression.right, &trace->minor);
+ if (ret) {
+ fprintf(fd, "[error] %s: unexpected unary expression for trace minor number\n", __func__);
+ ret = -EINVAL;
+ goto error;
+ }
+ CTF_TRACE_SET_FIELD(trace, minor);
+ } else if (!strcmp(left, "uuid")) {
+ unsigned char uuid[BABELTRACE_UUID_LEN];
+
+ ret = get_unary_uuid(&node->u.ctf_expression.right, uuid);
+ if (ret) {
+ fprintf(fd, "[error] %s: unexpected unary expression for trace uuid\n", __func__);
+ ret = -EINVAL;
+ goto error;
+ }
+ if (CTF_TRACE_FIELD_IS_SET(trace, uuid)
+ && babeltrace_uuid_compare(uuid, trace->uuid)) {
+ fprintf(fd, "[error] %s: uuid mismatch\n", __func__);
+ ret = -EPERM;
+ goto error;
+ } else {
+ memcpy(trace->uuid, uuid, sizeof(uuid));
+ }
+ CTF_TRACE_SET_FIELD(trace, uuid);
+ } else if (!strcmp(left, "byte_order")) {
+ struct ctf_node *right;
+ int byte_order;
+
+ right = _bt_list_first_entry(&node->u.ctf_expression.right, struct ctf_node, siblings);
+ byte_order = get_trace_byte_order(fd, depth, right);
+ if (byte_order < 0)
+ return -EINVAL;
+
+ if (CTF_TRACE_FIELD_IS_SET(trace, byte_order)
+ && byte_order != trace->byte_order) {
+ fprintf(fd, "[error] %s: endianness mismatch\n", __func__);
+ ret = -EPERM;
+ goto error;
+ } else {
+ if (byte_order != trace->byte_order) {
+ trace->byte_order = byte_order;
+ /*
+ * We need to restart
+ * construction of the
+ * intermediate representation.
+ */
+ trace->field_mask = 0;
+ CTF_TRACE_SET_FIELD(trace, byte_order);
+ ret = -EINTR;
+ goto error;
+ }
+ }
+ CTF_TRACE_SET_FIELD(trace, byte_order);
+ } else if (!strcmp(left, "packet.header")) {
+ struct declaration *declaration;
+
+ if (trace->packet_header_decl) {
+ fprintf(fd, "[error] %s: packet.header already declared in trace declaration\n", __func__);
+ ret = -EINVAL;
+ goto error;
+ }
+ declaration = ctf_type_specifier_list_visit(fd, depth,
+ _bt_list_first_entry(&node->u.ctf_expression.right,
+ struct ctf_node, siblings),
+ trace->declaration_scope, trace);
+ if (!declaration) {
+ ret = -EPERM;
+ goto error;
+ }
+ if (declaration->id != CTF_TYPE_STRUCT) {
+ ret = -EPERM;
+ goto error;
+ }
+ trace->packet_header_decl = container_of(declaration, struct declaration_struct, p);
+ } else {
+ fprintf(fd, "[warning] %s: attribute \"%s\" is unknown in trace declaration.\n", __func__, left);
+ }
+
+error:
+ g_free(left);
+ break;
+ }
+ default:
+ return -EPERM;
+ /* TODO: declaration specifier should be added. */
+ }
+
+ return ret;
+}
+
+static
+int ctf_trace_visit(FILE *fd, int depth, struct ctf_node *node, struct ctf_trace *trace)
+{
+ int ret = 0;
+ struct ctf_node *iter;
+
+ if (trace->declaration_scope)
+ return -EEXIST;
+ trace->declaration_scope = 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) {
+ ret = ctf_trace_declaration_visit(fd, depth + 1, iter, trace);
+ if (ret)
+ goto error;
+ }
+ if (!CTF_TRACE_FIELD_IS_SET(trace, major)) {
+ ret = -EPERM;
+ fprintf(fd, "[error] %s: missing major field in trace declaration\n", __func__);
+ goto error;
+ }
+ if (!CTF_TRACE_FIELD_IS_SET(trace, minor)) {
+ ret = -EPERM;
+ fprintf(fd, "[error] %s: missing minor field in trace declaration\n", __func__);
+ goto error;
+ }
+ if (!CTF_TRACE_FIELD_IS_SET(trace, byte_order)) {
+ ret = -EPERM;
+ fprintf(fd, "[error] %s: missing byte_order field in trace declaration\n", __func__);
+ goto error;
+ }
+
+ 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) {
+ ret = -EPERM;
+ fprintf(fd, "[error] %s: missing both byte_order and packet header magic number in trace declaration\n", __func__);
+ goto error;
+ }
+ }
+ return 0;
+
+error:
+ if (trace->packet_header_decl) {
+ 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);
+ trace->declaration_scope = NULL;
+ return ret;
+}
+
+static
+int ctf_clock_declaration_visit(FILE *fd, int depth, struct ctf_node *node,
+ struct ctf_clock *clock, 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_CLOCK_FIELD_IS_SET(clock, name)) {
+ fprintf(fd, "[error] %s: name already declared in clock 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 clock name\n", __func__);
+ ret = -EINVAL;
+ goto error;
+ }
+ clock->name = g_quark_from_string(right);
+ g_free(right);
+ CTF_CLOCK_SET_FIELD(clock, name);
+ } else if (!strcmp(left, "uuid")) {
+ char *right;
+
+ if (clock->uuid) {
+ fprintf(fd, "[error] %s: uuid already declared in clock 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 clock uuid\n", __func__);
+ ret = -EINVAL;
+ goto error;
+ }
+ clock->uuid = g_quark_from_string(right);
+ g_free(right);
+ } else if (!strcmp(left, "description")) {
+ char *right;
+
+ if (clock->description) {
+ fprintf(fd, "[warning] %s: duplicated clock description\n", __func__);
+ goto error; /* ret is 0, so not an actual error, just warn. */
+ }
+ right = concatenate_unary_strings(&node->u.ctf_expression.right);
+ if (!right) {
+ fprintf(fd, "[warning] %s: unexpected unary expression for clock description\n", __func__);
+ goto error; /* ret is 0, so not an actual error, just warn. */
+ }
+ clock->description = right;
+ } else if (!strcmp(left, "freq")) {
+ if (CTF_CLOCK_FIELD_IS_SET(clock, freq)) {
+ fprintf(fd, "[error] %s: freq already declared in clock declaration\n", __func__);
+ ret = -EPERM;
+ goto error;
+ }
+ ret = get_unary_unsigned(&node->u.ctf_expression.right, &clock->freq);
+ if (ret) {
+ fprintf(fd, "[error] %s: unexpected unary expression for clock freq\n", __func__);
+ ret = -EINVAL;
+ goto error;
+ }
+ CTF_CLOCK_SET_FIELD(clock, freq);
+ } else if (!strcmp(left, "precision")) {
+ if (clock->precision) {
+ fprintf(fd, "[error] %s: precision already declared in clock declaration\n", __func__);
+ ret = -EPERM;
+ goto error;
+ }
+ ret = get_unary_unsigned(&node->u.ctf_expression.right, &clock->precision);
+ if (ret) {
+ fprintf(fd, "[error] %s: unexpected unary expression for clock precision\n", __func__);
+ ret = -EINVAL;
+ goto error;
+ }
+ } else if (!strcmp(left, "offset_s")) {
+ if (clock->offset_s) {
+ fprintf(fd, "[error] %s: offset_s already declared in clock declaration\n", __func__);
+ ret = -EPERM;
+ goto error;
+ }
+ ret = get_unary_unsigned(&node->u.ctf_expression.right, &clock->offset_s);
+ if (ret) {
+ fprintf(fd, "[error] %s: unexpected unary expression for clock offset_s\n", __func__);
+ ret = -EINVAL;
+ goto error;
+ }
+ } else if (!strcmp(left, "offset")) {
+ if (clock->offset) {
+ fprintf(fd, "[error] %s: offset already declared in clock declaration\n", __func__);
+ ret = -EPERM;
+ goto error;
+ }
+ ret = get_unary_unsigned(&node->u.ctf_expression.right, &clock->offset);
+ if (ret) {
+ fprintf(fd, "[error] %s: unexpected unary expression for clock offset\n", __func__);
+ ret = -EINVAL;
+ goto error;
+ }
+ } else if (!strcmp(left, "absolute")) {
+ struct ctf_node *right;
+
+ right = _bt_list_first_entry(&node->u.ctf_expression.right, struct ctf_node, siblings);
+ ret = get_boolean(fd, depth, right);
+ if (ret < 0) {
+ fprintf(fd, "[error] %s: unexpected \"absolute\" right member\n", __func__);
+ ret = -EINVAL;
+ goto error;
+ }
+ clock->absolute = ret;
+ } else {
+ fprintf(fd, "[warning] %s: attribute \"%s\" is unknown in clock declaration.\n", __func__, left);
+ }
+
+error:
+ g_free(left);
+ break;
+ }
+ default:
+ return -EPERM;
+ /* TODO: declaration specifier should be added. */
+ }
+
+ return ret;
+}
+
+static
+int ctf_clock_visit(FILE *fd, int depth, struct ctf_node *node, struct ctf_trace *trace)
+{
+ int ret = 0;
+ struct ctf_node *iter;
+ struct ctf_clock *clock;
+
+ clock = g_new0(struct ctf_clock, 1);
+ /* Default clock frequency is set to 1000000000 */
+ clock->freq = 1000000000ULL;
+ bt_list_for_each_entry(iter, &node->u.clock.declaration_list, siblings) {
+ ret = ctf_clock_declaration_visit(fd, depth + 1, iter, clock, trace);
+ if (ret)
+ goto error;
+ }
+ if (opt_clock_force_correlate) {
+ /*
+ * User requested to forcibly correlate the clock
+ * sources, even if we have no correlatation
+ * information.
+ */
+ if (!clock->absolute) {
+ fprintf(fd, "[warning] Forcibly correlating trace clock sources (--clock-force-correlate).\n");
+ }
+ clock->absolute = 1;
+ }
+ if (!CTF_CLOCK_FIELD_IS_SET(clock, name)) {
+ ret = -EPERM;
+ fprintf(fd, "[error] %s: missing name field in clock declaration\n", __func__);
+ goto error;
+ }
+ if (g_hash_table_size(trace->clocks) > 0) {
+ fprintf(fd, "[error] Only CTF traces with a single clock description are supported by this babeltrace version.\n");
+ ret = -EINVAL;
+ goto error;
+ }
+ trace->single_clock = clock;
+ g_hash_table_insert(trace->clocks, (gpointer) (unsigned long) clock->name, clock);
+ return 0;
+
+error:
+ g_free(clock->description);
+ g_free(clock);
+ return ret;
+}
+
+static
+void ctf_clock_default(FILE *fd, int depth, struct ctf_trace *trace)
+{
+ struct ctf_clock *clock;
+
+ clock = g_new0(struct ctf_clock, 1);
+ clock->name = g_quark_from_string("monotonic");
+ clock->uuid = 0;
+ clock->description = g_strdup("Default clock");
+ /* Default clock frequency is set to 1000000000 */
+ clock->freq = 1000000000ULL;
+ if (opt_clock_force_correlate) {
+ /*
+ * User requested to forcibly correlate the clock
+ * sources, even if we have no correlatation
+ * information.
+ */
+ if (!clock->absolute) {
+ fprintf(fd, "[warning] Forcibly correlating trace clock sources (--clock-force-correlate).\n");
+ }
+ clock->absolute = 1;
+ } else {
+ clock->absolute = 0; /* Not an absolute reference across traces */
+ }
+
+ trace->single_clock = clock;
+ g_hash_table_insert(trace->clocks, (gpointer) (unsigned long) clock->name, clock);
+}
+
+static
+void clock_free(gpointer data)
+{
+ struct ctf_clock *clock = data;
+
+ g_free(clock->description);
+ 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;