X-Git-Url: http://git.efficios.com/?p=babeltrace.git;a=blobdiff_plain;f=formats%2Fctf%2Fmetadata%2Fctf-visitor-generate-io-struct.c;h=de9986113de508f36bfe66ac5950c6786da728ef;hp=2b8b676b3c36cef3beffc87a2c2ce66df4875abd;hb=b448902b7c2d8fa734e0d5cb1e6acbb009db97e4;hpb=e1151715912eaec959682b3bc10be3ced6abe467 diff --git a/formats/ctf/metadata/ctf-visitor-generate-io-struct.c b/formats/ctf/metadata/ctf-visitor-generate-io-struct.c index 2b8b676b..de998611 100644 --- a/formats/ctf/metadata/ctf-visitor-generate-io-struct.c +++ b/formats/ctf/metadata/ctf-visitor-generate-io-struct.c @@ -24,401 +24,2508 @@ #include #include #include +#include #include +#include +#include +#include +#include +#include #include "ctf-scanner.h" #include "ctf-parser.h" #include "ctf-ast.h" #define fprintf_dbg(fd, fmt, args...) fprintf(fd, "%s: " fmt, __func__, ## args) -#define _cds_list_first_entry(ptr, type, member) \ - cds_list_entry((ptr)->next, type, member) +#define _bt_list_first_entry(ptr, type, member) \ + bt_list_entry((ptr)->next, type, member) + +struct last_enum_value { + union { + int64_t s; + uint64_t u; + } u; +}; + +int opt_clock_force_correlate; + +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); + +static +int ctf_stream_visit(FILE *fd, int depth, struct ctf_node *node, + struct declaration_scope *parent_declaration_scope, struct ctf_trace *trace); + +static +int is_unary_string(struct bt_list_head *head) +{ + struct ctf_node *node; + + bt_list_for_each_entry(node, head, siblings) { + if (node->type != NODE_UNARY_EXPRESSION) + return 0; + if (node->u.unary_expression.type != UNARY_STRING) + return 0; + } + return 1; +} + +/* + * String returned must be freed by the caller using g_free. + */ +static +char *concatenate_unary_strings(struct bt_list_head *head) +{ + struct ctf_node *node; + GString *str; + int i = 0; + + str = g_string_new(""); + bt_list_for_each_entry(node, head, siblings) { + char *src_string; + + assert(node->type == NODE_UNARY_EXPRESSION); + assert(node->u.unary_expression.type == UNARY_STRING); + assert((node->u.unary_expression.link == UNARY_LINK_UNKNOWN) + ^ (i != 0)); + switch (node->u.unary_expression.link) { + case UNARY_DOTLINK: + g_string_append(str, "."); + break; + case UNARY_ARROWLINK: + g_string_append(str, "->"); + break; + case UNARY_DOTDOTDOT: + g_string_append(str, "..."); + break; + default: + break; + } + src_string = node->u.unary_expression.u.string; + g_string_append(str, src_string); + i++; + } + return g_string_free(str, FALSE); +} + +static +GQuark get_map_clock_name_value(struct bt_list_head *head) +{ + struct ctf_node *node; + const char *name = NULL; + int i = 0; + + bt_list_for_each_entry(node, head, siblings) { + char *src_string; + + assert(node->type == NODE_UNARY_EXPRESSION); + assert(node->u.unary_expression.type == UNARY_STRING); + assert((node->u.unary_expression.link == UNARY_LINK_UNKNOWN) + ^ (i != 0)); + /* needs to be chained with . */ + switch (node->u.unary_expression.link) { + case UNARY_DOTLINK: + break; + case UNARY_ARROWLINK: + case UNARY_DOTDOTDOT: + return 0; + default: + break; + } + src_string = node->u.unary_expression.u.string; + switch (i) { + case 0: if (strcmp("clock", src_string) != 0) { + return 0; + } + break; + case 1: name = src_string; + break; + case 2: if (strcmp("value", src_string) != 0) { + return 0; + } + break; + default: + return 0; /* extra identifier, unknown */ + } + i++; + } + return g_quark_from_string(name); +} + +static +int is_unary_unsigned(struct bt_list_head *head) +{ + struct ctf_node *node; + + bt_list_for_each_entry(node, head, siblings) { + if (node->type != NODE_UNARY_EXPRESSION) + return 0; + if (node->u.unary_expression.type != UNARY_UNSIGNED_CONSTANT) + return 0; + } + return 1; +} + +static +int get_unary_unsigned(struct bt_list_head *head, uint64_t *value) +{ + struct ctf_node *node; + int i = 0; + + bt_list_for_each_entry(node, head, siblings) { + assert(node->type == NODE_UNARY_EXPRESSION); + assert(node->u.unary_expression.type == UNARY_UNSIGNED_CONSTANT); + assert(node->u.unary_expression.link == UNARY_LINK_UNKNOWN); + assert(i == 0); + *value = node->u.unary_expression.u.unsigned_constant; + i++; + } + return 0; +} + +static +int is_unary_signed(struct bt_list_head *head) +{ + struct ctf_node *node; + + bt_list_for_each_entry(node, head, siblings) { + if (node->type != NODE_UNARY_EXPRESSION) + return 0; + if (node->u.unary_expression.type != UNARY_SIGNED_CONSTANT) + return 0; + } + return 1; +} + +static +int get_unary_signed(struct bt_list_head *head, int64_t *value) +{ + struct ctf_node *node; + int i = 0; + + bt_list_for_each_entry(node, head, siblings) { + assert(node->type == NODE_UNARY_EXPRESSION); + assert(node->u.unary_expression.type == UNARY_UNSIGNED_CONSTANT + || node->u.unary_expression.type == UNARY_SIGNED_CONSTANT); + assert(node->u.unary_expression.link == UNARY_LINK_UNKNOWN); + assert(i == 0); + switch (node->u.unary_expression.type) { + case UNARY_UNSIGNED_CONSTANT: + *value = (int64_t) node->u.unary_expression.u.unsigned_constant; + break; + case UNARY_SIGNED_CONSTANT: + *value = node->u.unary_expression.u.signed_constant; + break; + default: + assert(0); + } + i++; + } + return 0; +} + +static +int get_unary_uuid(struct bt_list_head *head, unsigned char *uuid) +{ + struct ctf_node *node; + int i = 0; + int ret = -1; + + bt_list_for_each_entry(node, head, siblings) { + const char *src_string; + + assert(node->type == NODE_UNARY_EXPRESSION); + assert(node->u.unary_expression.type == UNARY_STRING); + assert(node->u.unary_expression.link == UNARY_LINK_UNKNOWN); + assert(i == 0); + src_string = node->u.unary_expression.u.string; + ret = babeltrace_uuid_parse(src_string, uuid); + } + return ret; +} + +static +struct ctf_stream_declaration *trace_stream_lookup(struct ctf_trace *trace, uint64_t stream_id) +{ + if (trace->streams->len <= stream_id) + return NULL; + return g_ptr_array_index(trace->streams, stream_id); +} + +static +struct ctf_clock *trace_clock_lookup(struct ctf_trace *trace, GQuark clock_name) +{ + return g_hash_table_lookup(trace->clocks, (gpointer) (unsigned long) clock_name); +} static -int ctf_visitor_print_type_specifier(FILE *fd, int depth, struct ctf_node *node) +int visit_type_specifier(FILE *fd, struct ctf_node *type_specifier, GString *str) { - print_tabs(fd, depth); - fprintf(fd, "type == NODE_TYPE_SPECIFIER); - switch (node->u.type_specifier.type) { + switch (type_specifier->u.type_specifier.type) { case TYPESPEC_VOID: - fprintf(fd, "void"); + g_string_append(str, "void"); break; case TYPESPEC_CHAR: - fprintf(fd, "char"); + g_string_append(str, "char"); break; case TYPESPEC_SHORT: - fprintf(fd, "short"); + g_string_append(str, "short"); break; case TYPESPEC_INT: - fprintf(fd, "int"); + g_string_append(str, "int"); break; case TYPESPEC_LONG: - fprintf(fd, "long"); + g_string_append(str, "long"); break; case TYPESPEC_FLOAT: - fprintf(fd, "float"); + g_string_append(str, "float"); break; case TYPESPEC_DOUBLE: - fprintf(fd, "double"); + g_string_append(str, "double"); break; case TYPESPEC_SIGNED: - fprintf(fd, "signed"); + g_string_append(str, "signed"); break; case TYPESPEC_UNSIGNED: - fprintf(fd, "unsigned"); + g_string_append(str, "unsigned"); break; case TYPESPEC_BOOL: - fprintf(fd, "bool"); + g_string_append(str, "bool"); break; case TYPESPEC_COMPLEX: - fprintf(fd, "complex"); + g_string_append(str, "_Complex"); + break; + case TYPESPEC_IMAGINARY: + g_string_append(str, "_Imaginary"); break; case TYPESPEC_CONST: - fprintf(fd, "const"); + g_string_append(str, "const"); break; case TYPESPEC_ID_TYPE: - fprintf(fd, "%s", node->u.type_specifier.id_type); + if (type_specifier->u.type_specifier.id_type) + g_string_append(str, type_specifier->u.type_specifier.id_type); break; + case TYPESPEC_STRUCT: + { + struct ctf_node *node = type_specifier->u.type_specifier.node; - case TYPESPEC_UNKNOWN: - default: - fprintf(stderr, "[error] %s: unknown type specifier %d\n", __func__, - (int) node->u.type_specifier.type); - return -EINVAL; - } - fprintf(fd, "\"/>\n"); - return 0; -} - -static -int ctf_visitor_print_type_declarator(FILE *fd, int depth, struct ctf_node *node) -{ - int ret = 0; - struct ctf_node *iter; - - print_tabs(fd, depth); - fprintf(fd, "\n"); - depth++; - - if (!cds_list_empty(&node->u.type_declarator.pointers)) { - print_tabs(fd, depth); - fprintf(fd, "\n"); - cds_list_for_each_entry(iter, &node->u.type_declarator.pointers, - siblings) { - ret = ctf_visitor_print_xml(fd, depth + 1, iter); - if (ret) - return ret; + if (!node->u._struct.name) { + fprintf(fd, "[error] %s: unexpected empty variant name\n", __func__); + return -EINVAL; } - print_tabs(fd, depth); - fprintf(fd, "\n"); + g_string_append(str, "struct "); + g_string_append(str, node->u._struct.name); + break; } + case TYPESPEC_VARIANT: + { + struct ctf_node *node = type_specifier->u.type_specifier.node; - switch (node->u.type_declarator.type) { - case TYPEDEC_ID: - if (node->u.type_declarator.u.id) { - print_tabs(fd, depth); - fprintf(fd, "u.type_declarator.u.id); - fprintf(fd, "\" />\n"); + if (!node->u.variant.name) { + fprintf(fd, "[error] %s: unexpected empty variant name\n", __func__); + return -EINVAL; } + g_string_append(str, "variant "); + g_string_append(str, node->u.variant.name); break; - case TYPEDEC_NESTED: - if (node->u.type_declarator.u.nested.type_declarator) { - print_tabs(fd, depth); - fprintf(fd, "\n"); - ret = ctf_visitor_print_xml(fd, depth + 1, - node->u.type_declarator.u.nested.type_declarator); - if (ret) - return ret; - print_tabs(fd, depth); - fprintf(fd, "\n"); - } - if (node->u.type_declarator.u.nested.length) { - print_tabs(fd, depth); - fprintf(fd, "\n"); - ret = ctf_visitor_print_xml(fd, depth + 1, - node->u.type_declarator.u.nested.length); - if (ret) - return ret; - print_tabs(fd, depth); - fprintf(fd, "\n"); - } - if (node->u.type_declarator.u.nested.abstract_array) { - print_tabs(fd, depth); - fprintf(fd, "\n"); - print_tabs(fd, depth); - fprintf(fd, "\n"); - } - if (node->u.type_declarator.bitfield_len) { - print_tabs(fd, depth); - fprintf(fd, "\n"); - ret = ctf_visitor_print_xml(fd, depth + 1, - node->u.type_declarator.bitfield_len); - if (ret) - return ret; - print_tabs(fd, depth); - fprintf(fd, "\n"); + } + case TYPESPEC_ENUM: + { + struct ctf_node *node = type_specifier->u.type_specifier.node; + + if (!node->u._enum.enum_id) { + fprintf(fd, "[error] %s: unexpected empty enum ID\n", __func__); + return -EINVAL; } + g_string_append(str, "enum "); + g_string_append(str, node->u._enum.enum_id); break; - case TYPEDEC_UNKNOWN: + } + case TYPESPEC_FLOATING_POINT: + case TYPESPEC_INTEGER: + case TYPESPEC_STRING: default: - fprintf(stderr, "[error] %s: unknown type declarator %d\n", __func__, - (int) node->u.type_declarator.type); + fprintf(fd, "[error] %s: unknown specifier\n", __func__); return -EINVAL; } - - depth--; - print_tabs(fd, depth); - fprintf(fd, "\n"); return 0; } -/* - * String returned must be freed by the caller. - */ static -char *concatenate_unary_strings(struct list_head *head) +int visit_type_specifier_list(FILE *fd, struct ctf_node *type_specifier_list, GString *str) { - + struct ctf_node *iter; + int alias_item_nr = 0; + int ret; + + bt_list_for_each_entry(iter, &type_specifier_list->u.type_specifier_list.head, siblings) { + if (alias_item_nr != 0) + g_string_append(str, " "); + alias_item_nr++; + ret = visit_type_specifier(fd, iter, str); + if (ret) + return ret; + } + return 0; } static -int get_unary_unsigned(struct list_head *head, uint64_t *value) +GQuark create_typealias_identifier(FILE *fd, int depth, + struct ctf_node *type_specifier_list, + struct ctf_node *node_type_declarator) { - + struct ctf_node *iter; + GString *str; + char *str_c; + GQuark alias_q; + int ret; + + str = g_string_new(""); + ret = visit_type_specifier_list(fd, type_specifier_list, str); + if (ret) { + g_string_free(str, TRUE); + return 0; + } + bt_list_for_each_entry(iter, &node_type_declarator->u.type_declarator.pointers, siblings) { + g_string_append(str, " *"); + if (iter->u.pointer.const_qualifier) + g_string_append(str, " const"); + } + str_c = g_string_free(str, FALSE); + alias_q = g_quark_from_string(str_c); + g_free(str_c); + return alias_q; } static -int get_unary_uuid(struct list_head *head, uuid_t *uuid) +struct declaration *ctf_type_declarator_visit(FILE *fd, int depth, + struct ctf_node *type_specifier_list, + GQuark *field_name, + struct ctf_node *node_type_declarator, + struct declaration_scope *declaration_scope, + struct declaration *nested_declaration, + struct ctf_trace *trace) { + /* + * Visit type declarator by first taking care of sequence/array + * (recursively). Then, when we get to the identifier, take care + * of pointers. + */ + + if (node_type_declarator) { + assert(node_type_declarator->u.type_declarator.type != TYPEDEC_UNKNOWN); + + /* TODO: gcc bitfields not supported yet. */ + if (node_type_declarator->u.type_declarator.bitfield_len != NULL) { + fprintf(fd, "[error] %s: gcc bitfields are not supported yet.\n", __func__); + return NULL; + } + } + + if (!nested_declaration) { + if (node_type_declarator && !bt_list_empty(&node_type_declarator->u.type_declarator.pointers)) { + GQuark alias_q; + + /* + * If we have a pointer declarator, it _has_ to be present in + * the typealiases (else fail). + */ + alias_q = create_typealias_identifier(fd, depth, + type_specifier_list, node_type_declarator); + nested_declaration = 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; + } + if (nested_declaration->id == CTF_TYPE_INTEGER) { + struct declaration_integer *integer_declaration = + container_of(nested_declaration, struct declaration_integer, p); + /* For base to 16 for pointers (expected pretty-print) */ + if (!integer_declaration->base) { + /* + * We need to do a copy of the + * integer declaration to modify it. There could be other references to + * it. + */ + integer_declaration = integer_declaration_new(integer_declaration->len, + integer_declaration->byte_order, integer_declaration->signedness, + integer_declaration->p.alignment, 16, integer_declaration->encoding, + integer_declaration->clock); + nested_declaration = &integer_declaration->p; + } + } + } else { + nested_declaration = ctf_type_specifier_list_visit(fd, depth, + type_specifier_list, declaration_scope, trace); + } + } + + if (!node_type_declarator) + return nested_declaration; + + if (node_type_declarator->u.type_declarator.type == TYPEDEC_ID) { + if (node_type_declarator->u.type_declarator.u.id) + *field_name = g_quark_from_string(node_type_declarator->u.type_declarator.u.id); + else + *field_name = 0; + return nested_declaration; + } else { + struct declaration *declaration; + struct ctf_node *first; + + /* TYPEDEC_NESTED */ + + if (!nested_declaration) { + fprintf(fd, "[error] %s: nested type is unknown.\n", __func__); + return NULL; + } + + /* create array/sequence, pass nested_declaration as child. */ + if (bt_list_empty(&node_type_declarator->u.type_declarator.u.nested.length)) { + fprintf(fd, "[error] %s: expecting length field reference or value.\n", __func__); + return NULL; + } + first = _bt_list_first_entry(&node_type_declarator->u.type_declarator.u.nested.length, + struct ctf_node, siblings); + assert(first->type == NODE_UNARY_EXPRESSION); + + switch (first->u.unary_expression.type) { + case UNARY_UNSIGNED_CONSTANT: + { + struct declaration_array *array_declaration; + size_t len; + + len = first->u.unary_expression.u.unsigned_constant; + array_declaration = array_declaration_new(len, nested_declaration, + declaration_scope); + + if (!array_declaration) { + fprintf(fd, "[error] %s: cannot create array declaration.\n", __func__); + return NULL; + } + declaration = &array_declaration->p; + break; + } + case UNARY_STRING: + { + /* Lookup unsigned integer definition, create sequence */ + 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); + if (!sequence_declaration) { + fprintf(fd, "[error] %s: cannot create sequence declaration.\n", __func__); + return NULL; + } + declaration = &sequence_declaration->p; + break; + } + default: + assert(0); + } + /* Pass it as content of outer container */ + declaration = ctf_type_declarator_visit(fd, depth, + type_specifier_list, field_name, + node_type_declarator->u.type_declarator.u.nested.type_declarator, + declaration_scope, declaration, trace); + return declaration; + } } static -struct ctf_stream *trace_stream_lookup(struct ctf_trace *trace, uint64_t stream_id) +int ctf_struct_type_declarators_visit(FILE *fd, int depth, + struct declaration_struct *struct_declaration, + struct ctf_node *type_specifier_list, + struct bt_list_head *type_declarators, + struct declaration_scope *declaration_scope, + struct ctf_trace *trace) { - if (trace->streams->len <= stream_id) - return NULL; - return g_ptr_array_index(trace->streams, stream_id); + struct ctf_node *iter; + GQuark field_name; + + bt_list_for_each_entry(iter, type_declarators, siblings) { + struct declaration *field_declaration; + + field_declaration = ctf_type_declarator_visit(fd, depth, + type_specifier_list, + &field_name, iter, + struct_declaration->scope, + NULL, trace); + if (!field_declaration) { + fprintf(fd, "[error] %s: unable to find struct field declaration type\n", __func__); + return -EINVAL; + } + + /* Check if field with same name already exists */ + if (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, + g_quark_to_string(field_name), + field_declaration); + } + return 0; } -/* - * Also add named variant, struct or enum to the current type scope. - */ static -struct ctf_type *ctf_type_specifier_visit(FILE *fd, - int depth, struct list_head *head, - struct type_scope *type_scope, - struct definition_scope *definition_scope) +int ctf_variant_type_declarators_visit(FILE *fd, int depth, + struct declaration_untagged_variant *untagged_variant_declaration, + struct ctf_node *type_specifier_list, + struct bt_list_head *type_declarators, + struct declaration_scope *declaration_scope, + struct ctf_trace *trace) { - struct ctf_type *type; - struct node *first; + struct ctf_node *iter; + GQuark field_name; + + bt_list_for_each_entry(iter, type_declarators, siblings) { + struct declaration *field_declaration; + + field_declaration = ctf_type_declarator_visit(fd, depth, + type_specifier_list, + &field_name, iter, + untagged_variant_declaration->scope, + NULL, trace); + if (!field_declaration) { + fprintf(fd, "[error] %s: unable to find variant field declaration type\n", __func__); + return -EINVAL; + } - first = _cds_list_first_entry(head, struct node, siblings); + if (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; + } - switch (first->type) { - case NODE_STRUCT: - /* For named struct (without body), lookup in type scope */ - /* For named struct (with body), create type and add to type scope */ - /* For unnamed struct, create type */ - break; - case NODE_VARIANT: - /* For named variant (without body), lookup in type scope */ - /* For named variant (with body), create type and add to type scope */ - /* For unnamed variant, create type */ - break; - case NODE_ENUM: - /* For named enum (without body), lookup in type scope */ - /* For named enum (with body), create type and add to type scope */ - /* For unnamed enum, create type */ - break; - case NODE_INTEGER: - break; - case NODE_FLOATING_POINT: - break; - case NODE_TYPE_SPECIFIER: - break; + untagged_variant_declaration_add_field(untagged_variant_declaration, + g_quark_to_string(field_name), + field_declaration); } + return 0; } static -struct ctf_declaration *ctf_declaration_specifier_visit(FILE *fd, - int depth, struct list_head *head, - struct type_scope *type_scope, - struct definition_scope *definition_scope) +int ctf_typedef_visit(FILE *fd, int depth, struct declaration_scope *scope, + struct ctf_node *type_specifier_list, + struct bt_list_head *type_declarators, + struct ctf_trace *trace) { - struct ctf_declaration *declaration; - struct ctf_type *type; - - type = ctf_type_specifier_visit(fd, depth, head, type_scope, - definition_scope); - declaration = type->declaration_new(type, definition_scope); - if (type->id == CTF_TYPE_VARIANT) { - struct declaration_variant *variant = - container_of(declaration, struct declaration_variant, p); - struct declaration *enum_tag = - lookup_field_declaration(enum_tag_name, definition_scope); - if (!enum_tag) { - fprintf(fd, "[error]: expected enumeration tag field %s for variant\n", - enum_tag_name); - goto error; + struct ctf_node *iter; + GQuark identifier; + + bt_list_for_each_entry(iter, type_declarators, siblings) { + struct declaration *type_declaration; + int ret; + + type_declaration = ctf_type_declarator_visit(fd, depth, + type_specifier_list, + &identifier, iter, + scope, NULL, trace); + if (!type_declaration) { + fprintf(fd, "[error] %s: problem creating type declaration\n", __func__); + return -EINVAL; + } + /* + * Don't allow typedef and typealias of untagged + * variants. + */ + 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); + return -EPERM; + } + ret = register_declaration(identifier, type_declaration, scope); + if (ret) { + type_declaration->declaration_free(type_declaration); + return ret; } - /* TODO find enum tag */ - ret = variant_declaration_set_tag(variant, enum_tag); } - return declaration; -error: - declaration_unref(declaration); - type_unref(type); - return NULL; + return 0; } static -int ctf_typedef_declarator_visit(FILE *fd, int depth, - struct list_head *declaration_specifier, - struct node *type_declarator, struct type_scope *type_scope, - struct definition_scope *definition_scope) +int ctf_typealias_visit(FILE *fd, int depth, struct declaration_scope *scope, + struct ctf_node *target, struct ctf_node *alias, + struct ctf_trace *trace) { + struct declaration *type_declaration; + struct ctf_node *node; + GQuark dummy_id; + GQuark alias_q; + int err; + + /* See ctf_visitor_type_declarator() in the semantic validator. */ + /* - * Build the type using declaration specifier (creating - * declaration from type_specifier), then apply type declarator, - * add the resulting type to the current type scope. + * Create target type declaration. */ - cds_list_for_each_entry(iter, declaration_specifier, siblings) { - + if (bt_list_empty(&target->u.typealias_target.type_declarators)) + node = NULL; + else + node = _bt_list_first_entry(&target->u.typealias_target.type_declarators, + struct ctf_node, siblings); + type_declaration = ctf_type_declarator_visit(fd, depth, + target->u.typealias_target.type_specifier_list, + &dummy_id, node, + scope, NULL, trace); + if (!type_declaration) { + fprintf(fd, "[error] %s: problem creating type declaration\n", __func__); + err = -EINVAL; + goto error; + } + /* + * Don't allow typedef and typealias of untagged + * variants. + */ + 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); + return -EPERM; + } + /* + * The semantic validator does not check whether the target is + * abstract or not (if it has an identifier). Check it here. + */ + if (dummy_id != 0) { + fprintf(fd, "[error] %s: expecting empty identifier\n", __func__); + err = -EINVAL; + goto error; } + /* + * Create alias identifier. + */ + + node = _bt_list_first_entry(&alias->u.typealias_alias.type_declarators, + 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); + if (err) + goto error; return 0; + +error: + if (type_declaration) { + type_declaration->declaration_free(type_declaration); + } + return err; } static -int ctf_typedef_visit(FILE *fd, int depth, - struct list_head *declaration_specifier, - struct list_head *type_declarators, - struct type_scope *type_scope, - struct definition_scope *definition_scope) +int ctf_struct_declaration_list_visit(FILE *fd, int depth, + struct ctf_node *iter, struct declaration_struct *struct_declaration, + struct ctf_trace *trace) { - struct ctf_node *iter; + int ret; - cds_list_for_each_entry(iter, type_declarators, siblings) { - ret = ctf_typedef_declarator_visit(fd, depth + 1, - &node->u._typedef.declaration_specifier, iter, - type_scope, definition_scope); + switch (iter->type) { + case NODE_TYPEDEF: + /* For each declarator, declare type and add type to struct declaration scope */ + ret = ctf_typedef_visit(fd, depth, + struct_declaration->scope, + iter->u._typedef.type_specifier_list, + &iter->u._typedef.type_declarators, trace); + if (ret) + return ret; + break; + case NODE_TYPEALIAS: + /* Declare type with declarator and add type to struct declaration scope */ + ret = ctf_typealias_visit(fd, depth, + struct_declaration->scope, + iter->u.typealias.target, + iter->u.typealias.alias, trace); + if (ret) + return ret; + break; + case NODE_STRUCT_OR_VARIANT_DECLARATION: + /* Add field to structure declaration */ + ret = ctf_struct_type_declarators_visit(fd, depth, + struct_declaration, + iter->u.struct_or_variant_declaration.type_specifier_list, + &iter->u.struct_or_variant_declaration.type_declarators, + struct_declaration->scope, trace); if (ret) return ret; + break; + default: + fprintf(fd, "[error] %s: unexpected node type %d\n", __func__, (int) iter->type); + assert(0); } return 0; } static -int ctf_typealias_visit(FILE *fd, int depth, struct ctf_node *target, - struct ctf_node *alias, struct type_scope *type_scope, - struct definition_scope *definition_scope) -{ - /* Build target type, check that it is reachable in current type scope. */ - /* Only one type declarator is allowed */ - - /* Build alias type, add to current type scope. */ - /* Only one type declarator is allowed */ -} - -static -int ctf_event_declaration_visit(FILE *fd, int depth, struct ctf_node *node, struct ctf_event *event, struct ctf_trace *trace) +int ctf_variant_declaration_list_visit(FILE *fd, int depth, + struct ctf_node *iter, + struct declaration_untagged_variant *untagged_variant_declaration, + struct ctf_trace *trace) { - int ret = 0; + int ret; - switch (node->type) { + switch (iter->type) { case NODE_TYPEDEF: - ret = ctf_typedef_visit(fd, depth + 1, - &node->u._typedef.declaration_specifier, - &node->u._typedef.type_declarators, - event->type_scope, event->definition_scope); + /* For each declarator, declare type and add type to variant declaration scope */ + ret = ctf_typedef_visit(fd, depth, + untagged_variant_declaration->scope, + iter->u._typedef.type_specifier_list, + &iter->u._typedef.type_declarators, trace); if (ret) return ret; break; case NODE_TYPEALIAS: - ret = ctf_typealias_visit(fd, depth + 1, - &node->u.typealias.target, &node->u.typealias.alias - event->type_scope, event->definition_scope); + /* Declare type with declarator and add type to variant declaration scope */ + ret = ctf_typealias_visit(fd, depth, + untagged_variant_declaration->scope, + iter->u.typealias.target, + iter->u.typealias.alias, trace); if (ret) return ret; break; - case NODE_CTF_EXPRESSION: - { - char *left; + case NODE_STRUCT_OR_VARIANT_DECLARATION: + /* Add field to structure declaration */ + ret = ctf_variant_type_declarators_visit(fd, depth, + untagged_variant_declaration, + iter->u.struct_or_variant_declaration.type_specifier_list, + &iter->u.struct_or_variant_declaration.type_declarators, + untagged_variant_declaration->scope, trace); + if (ret) + return ret; + break; + default: + fprintf(fd, "[error] %s: unexpected node type %d\n", __func__, (int) iter->type); + assert(0); + } + return 0; +} - left = concatenate_unary_strings(&node->u.ctf_expression.left); - if (!strcmp(left, "name")) { - char *right; +static +struct declaration *ctf_declaration_struct_visit(FILE *fd, + int depth, const char *name, struct bt_list_head *declaration_list, + int has_body, struct bt_list_head *min_align, + struct declaration_scope *declaration_scope, + struct ctf_trace *trace) +{ + struct declaration_struct *struct_declaration; + struct ctf_node *iter; + int ret; - if (CTF_EVENT_FIELD_IS_SET(event, name)) - return -EPERM; - right = concatenate_unary_strings(&node->u.ctf_expression.right); - if (!right) { - fprintf(stderr, "[error] %s: unexpected unary expression for event name\n", __func__); - return -EINVAL; + /* + * For named struct (without body), lookup in + * declaration scope. Don't take reference on struct + * declaration: ref is only taken upon definition. + */ + if (!has_body) { + assert(name); + struct_declaration = + lookup_struct_declaration(g_quark_from_string(name), + declaration_scope); + return &struct_declaration->p; + } else { + uint64_t min_align_value = 0; + + /* 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), + declaration_scope)) { + + fprintf(fd, "[error] %s: struct %s already declared in scope\n", __func__, name); + return NULL; } - event->name = g_quark_from_string(right); - free(right); - CTF_EVENT_SET_FIELD(event, name); - } else if (!strcmp(left, "id")) { - if (CTF_EVENT_FIELD_IS_SET(event, id)) - return -EPERM; - ret = get_unary_unsigned(&node->u.ctf_expression.right, &event->id); + } + if (!bt_list_empty(min_align)) { + ret = get_unary_unsigned(min_align, &min_align_value); if (ret) { - fprintf(stderr, "[error] %s: unexpected unary expression for event id\n", __func__); - return -EINVAL; + fprintf(fd, "[error] %s: unexpected unary expression for structure \"align\" attribute\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)) - return -EPERM; - ret = get_unary_unsigned(&node->u.ctf_expression.right, &event->stream_id); - if (ret) { - fprintf(stderr, "[error] %s: unexpected unary expression for event stream_id\n", __func__); - return -EINVAL; + } + 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; + } + 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; } - event->stream = trace_stream_lookup(trace, event->stream_id); - if (!event->stream) { - fprintf(stderr, "[error] %s: stream id %" PRIu64 " cannot be found\n", __func__, event->stream_id); - return -EINVAL; + 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; } - event->definition_scope = new_definition_scope(stream->definition_scope); - if (!event->definition_scope) { - fprintf(stderr, "[error] %s: Error allocating declaration scope\n", __func__); - return -EPERM; + 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_EVENT_SET_FIELD(event, stream_id); - } else if (!strcmp(left, "context")) { - struct declaration *declaration; - - if (!event->definition_scope) - return -EPERM; - declaration = ctf_declaration_specifier_visit(fd, depth, - &node->u.ctf_expression.right, - event->type_scope, event->definition_scope); - if (!declaration) - return -EPERM; - if (declaration->type->id != CTF_TYPE_STRUCT) - return -EPERM; - event->context = container_of(declaration, struct declaration_struct, p); - } else if (!strcmp(left, "fields")) { - struct declaration *declaration; - - if (!event->definition_scope) - return -EPERM; - declaration = ctf_declaration_specifier_visit(fd, depth, - &node->u.ctf_expression.right, - event->type_scope, event->definition_scope); - if (!declaration) - return -EPERM; - if (declaration->type->id != CTF_TYPE_STRUCT) - return -EPERM; - event->fields = container_of(declaration, struct declaration_struct, p); + CTF_CALLSITE_SET_FIELD(callsite, ip); + } else { + fprintf(fd, "[warning] %s: attribute \"%s\" is unknown in callsite declaration.\n", __func__, left); } - free(left); + +error: + g_free(left); break; } default: @@ -426,566 +2533,408 @@ int ctf_event_declaration_visit(FILE *fd, int depth, struct ctf_node *node, stru /* TODO: declaration specifier should be added. */ } - return 0; + return ret; } static -int ctf_event_visit(FILE *fd, int depth, struct ctf_node *node, - struct type_scope *parent_type_scope, struct ctf_trace *trace) +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_event *event; + struct ctf_callsite *callsite; + struct ctf_callsite_dups *cs_dups; - event = g_new0(struct ctf_event, 1); - event->type_scope = new_type_scope(parent_type_scope); - cds_list_for_each_entry(iter, &node->u.event.declaration_list, siblings) { - ret = ctf_event_declaration_visit(fd, depth + 1, iter, event, trace); + 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_EVENT_FIELD_IS_SET(event, name)) { + 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_EVENT_FIELD_IS_SET(event, id)) { + 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_EVENT_FIELD_IS_SET(event, stream_id)) { + 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 (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); + 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: - declaration_unref(event->fields); - declaration_unref(event->context); - free_definition_scope(event->definition_scope); - free_type_scope(event->type_scope); - g_free(event); + g_free(callsite->func); + g_free(callsite->file); + g_free(callsite); return ret; } - static -int ctf_stream_declaration_visit(FILE *fd, int depth, struct ctf_node *node, struct ctf_stream *stream, struct ctf_trace *trace) +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); + } +} + +static +int ctf_env_declaration_visit(FILE *fd, int depth, struct ctf_node *node, + struct ctf_trace *trace) { int ret = 0; + struct ctf_tracer_env *env = &trace->env; switch (node->type) { - case NODE_TYPEDEF: - ret = ctf_typedef_visit(fd, depth + 1, - &node->u._typedef.declaration_specifier, - &node->u._typedef.type_declarators, - stream->type_scope, stream->definition_scope); - if (ret) - return ret; - break; - case NODE_TYPEALIAS: - ret = ctf_typealias_visit(fd, depth + 1, - &node->u.typealias.target, &node->u.typealias.alias - stream->type_scope, stream->definition_scope); - if (ret) - return ret; - break; case NODE_CTF_EXPRESSION: { char *left; left = concatenate_unary_strings(&node->u.ctf_expression.left); - if (!strcmp(left, "stream_id")) { - if (CTF_EVENT_FIELD_IS_SET(event, stream_id)) - return -EPERM; - ret = get_unary_unsigned(&node->u.ctf_expression.right, &event->stream_id); + if (!strcmp(left, "vpid")) { + uint64_t v; + + if (env->vpid != -1) { + fprintf(fd, "[error] %s: vpid already declared in env declaration\n", __func__); + goto error; /* ret is 0, so not an actual error, just warn. */ + } + ret = get_unary_unsigned(&node->u.ctf_expression.right, &v); if (ret) { - fprintf(stderr, "[error] %s: unexpected unary expression for event stream_id\n", __func__); - return -EINVAL; + fprintf(fd, "[error] %s: unexpected unary expression for env vpid\n", __func__); + goto error; /* ret is 0, so not an actual error, just warn. */ } - CTF_EVENT_SET_FIELD(event, stream_id); - } else if (!strcmp(left, "event_header")) { - struct declaration *declaration; + env->vpid = (int) v; + printf_verbose("env.vpid = %d\n", env->vpid); + } else if (!strcmp(left, "procname")) { + char *right; - declaration = ctf_declaration_specifier_visit(fd, depth, - &node->u.ctf_expression.right, - stream->type_scope, stream->definition_scope); - if (!declaration) - return -EPERM; - if (declaration->type->id != CTF_TYPE_STRUCT) - return -EPERM; - stream->event_header = container_of(declaration, struct declaration_struct, p); - } else if (!strcmp(left, "event_context")) { - struct declaration *declaration; + if (env->procname[0]) { + fprintf(fd, "[warning] %s: duplicated env procname\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 env procname\n", __func__); + goto error; /* ret is 0, so not an actual error, just warn. */ + } + strncpy(env->procname, right, TRACER_ENV_LEN); + env->procname[TRACER_ENV_LEN - 1] = '\0'; + printf_verbose("env.procname = \"%s\"\n", env->procname); + } else if (!strcmp(left, "hostname")) { + char *right; - declaration = ctf_declaration_specifier_visit(fd, depth, - &node->u.ctf_expression.right, - stream->type_scope, stream->definition_scope); - if (!declaration) - return -EPERM; - if (declaration->type->id != CTF_TYPE_STRUCT) - return -EPERM; - stream->event_context = container_of(declaration, struct declaration_struct, p); - } else if (!strcmp(left, "packet_context")) { - struct declaration *declaration; + if (env->hostname[0]) { + fprintf(fd, "[warning] %s: duplicated env hostname\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 env hostname\n", __func__); + goto error; /* ret is 0, so not an actual error, just warn. */ + } + strncpy(env->hostname, right, TRACER_ENV_LEN); + env->hostname[TRACER_ENV_LEN - 1] = '\0'; + printf_verbose("env.hostname = \"%s\"\n", env->hostname); + } else if (!strcmp(left, "domain")) { + char *right; + + if (env->domain[0]) { + fprintf(fd, "[warning] %s: duplicated env domain\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 env domain\n", __func__); + goto error; /* ret is 0, so not an actual error, just warn. */ + } + strncpy(env->domain, right, TRACER_ENV_LEN); + env->domain[TRACER_ENV_LEN - 1] = '\0'; + printf_verbose("env.domain = \"%s\"\n", env->domain); + } else if (!strcmp(left, "sysname")) { + char *right; + + if (env->sysname[0]) { + fprintf(fd, "[warning] %s: duplicated env sysname\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 env sysname\n", __func__); + goto error; /* ret is 0, so not an actual error, just warn. */ + } + strncpy(env->sysname, right, TRACER_ENV_LEN); + env->sysname[TRACER_ENV_LEN - 1] = '\0'; + printf_verbose("env.sysname = \"%s\"\n", env->sysname); + } else if (!strcmp(left, "kernel_release")) { + char *right; + + if (env->release[0]) { + fprintf(fd, "[warning] %s: duplicated env release\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 env release\n", __func__); + goto error; /* ret is 0, so not an actual error, just warn. */ + } + strncpy(env->release, right, TRACER_ENV_LEN); + env->release[TRACER_ENV_LEN - 1] = '\0'; + printf_verbose("env.release = \"%s\"\n", env->release); + } else if (!strcmp(left, "kernel_version")) { + char *right; - declaration = ctf_declaration_specifier_visit(fd, depth, - &node->u.ctf_expression.right, - stream->type_scope, stream->definition_scope); - if (!declaration) - return -EPERM; - if (declaration->type->id != CTF_TYPE_STRUCT) - return -EPERM; - stream->packet_context = container_of(declaration, struct declaration_struct, p); + if (env->version[0]) { + fprintf(fd, "[warning] %s: duplicated env version\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 env version\n", __func__); + goto error; /* ret is 0, so not an actual error, just warn. */ + } + strncpy(env->version, right, TRACER_ENV_LEN); + env->version[TRACER_ENV_LEN - 1] = '\0'; + printf_verbose("env.version = \"%s\"\n", env->version); + } 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); + } else if (is_unary_unsigned(&node->u.ctf_expression.right)) { + uint64_t v; + int ret; + + ret = get_unary_unsigned(&node->u.ctf_expression.right, &v); + assert(ret == 0); + printf_verbose("env.%s = %" PRIu64 "\n", left, v); + } else if (is_unary_signed(&node->u.ctf_expression.right)) { + int64_t v; + int ret; + + ret = get_unary_signed(&node->u.ctf_expression.right, &v); + assert(ret == 0); + printf_verbose("env.%s = %" PRId64 "\n", left, v); + } else { + printf_verbose("%s: attribute \"%s\" has unknown type.\n", __func__, left); + } } - free(left); + +error: + g_free(left); break; } default: return -EPERM; - /* TODO: declaration specifier should be added. */ } - return 0; + return ret; } static -int ctf_stream_visit(FILE *fd, int depth, struct ctf_node *node, - struct type_scope *parent_type_scope, struct ctf_trace *trace) +int ctf_env_visit(FILE *fd, int depth, struct ctf_node *node, struct ctf_trace *trace) { int ret = 0; struct ctf_node *iter; - struct ctf_stream *stream; - stream = g_new0(struct ctf_stream, 1); - stream->type_scope = new_type_scope(parent_type_scope); - stream->definition_scope = new_definition_scope(trace->definition_scope); - stream->events_by_id = g_ptr_array_new(); - stream->event_quark_to_id = g_hash_table_new(g_int_hash, g_int_equal); - cds_list_for_each_entry(iter, &node->u.stream.declaration_list, siblings) { - ret = ctf_stream_declaration_visit(fd, depth + 1, iter, stream, trace); + trace->env.vpid = -1; + trace->env.procname[0] = '\0'; + trace->env.hostname[0] = '\0'; + trace->env.domain[0] = '\0'; + trace->env.sysname[0] = '\0'; + trace->env.release[0] = '\0'; + trace->env.version[0] = '\0'; + bt_list_for_each_entry(iter, &node->u.env.declaration_list, siblings) { + ret = ctf_env_declaration_visit(fd, depth + 1, iter, trace); if (ret) goto error; } - if (!CTF_EVENT_FIELD_IS_SET(stream, stream_id)) { - ret = -EPERM; - goto error; - } - 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; - return 0; - error: - declaration_unref(stream->event_header); - declaration_unref(stream->event_context); - declaration_unref(stream->packet_context); - g_ptr_array_free(stream->events_by_id, TRUE); - g_hash_table_free(stream->event_quark_to_id); - free_definition_scope(stream->definition_scope); - free_type_scope(stream->type_scope); - g_free(stream); - return ret; + return 0; } static -int ctf_trace_declaration_visit(FILE *fd, int depth, struct ctf_node *node, struct ctf_trace *trace) +int ctf_root_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, - &node->u._typedef.declaration_specifier, + trace->root_declaration_scope, + node->u._typedef.type_specifier_list, &node->u._typedef.type_declarators, - trace->type_scope, trace->definition_scope); + trace); if (ret) return ret; break; case NODE_TYPEALIAS: ret = ctf_typealias_visit(fd, depth + 1, - &node->u.typealias.target, &node->u.typealias.alias - trace->type_scope, trace->definition_scope); + trace->root_declaration_scope, + node->u.typealias.target, node->u.typealias.alias, + trace); if (ret) return ret; break; - case NODE_CTF_EXPRESSION: + case NODE_TYPE_SPECIFIER_LIST: { - char *left; - - left = concatenate_unary_strings(&node->u.ctf_expression.left); - if (!strcmp(left, "major")) { - if (CTF_EVENT_FIELD_IS_SET(trace, major)) - return -EPERM; - ret = get_unary_unsigned(&node->u.ctf_expression.right, &trace->major); - if (ret) { - fprintf(stderr, "[error] %s: unexpected unary expression for trace major number\n", __func__); - return -EINVAL; - } - CTF_EVENT_SET_FIELD(trace, major); - } else if (!strcmp(left, "minor")) { - if (CTF_EVENT_FIELD_IS_SET(trace, minor)) - return -EPERM; - ret = get_unary_unsigned(&node->u.ctf_expression.right, &trace->minor); - if (ret) { - fprintf(stderr, "[error] %s: unexpected unary expression for trace minor number\n", __func__); - return -EINVAL; - } - CTF_EVENT_SET_FIELD(trace, minor); - } else if (!strcmp(left, "word_size")) { - if (CTF_EVENT_FIELD_IS_SET(trace, word_size)) - return -EPERM; - ret = get_unary_unsigned(&node->u.ctf_expression.right, &trace->word_size); - if (ret) { - fprintf(stderr, "[error] %s: unexpected unary expression for trace word_size\n", __func__); - return -EINVAL; - } - CTF_EVENT_SET_FIELD(trace, word_size); - } else if (!strcmp(left, "uuid")) { - if (CTF_EVENT_FIELD_IS_SET(trace, uuid)) - return -EPERM; - ret = get_unary_uuid(&node->u.ctf_expression.right, &trace->uuid); - if (ret) { - fprintf(stderr, "[error] %s: unexpected unary expression for trace uuid\n", __func__); - return -EINVAL; - } - CTF_EVENT_SET_FIELD(trace, uuid); - } - free(left); + struct declaration *declaration; + + /* + * Just add the type specifier to the root scope + * declaration scope. Release local reference. + */ + declaration = ctf_type_specifier_list_visit(fd, depth + 1, + node, trace->root_declaration_scope, trace); + if (!declaration) + return -ENOMEM; + declaration_unref(declaration); break; } default: return -EPERM; - /* TODO: declaration specifier should be added. */ } return 0; } - -static -int ctf_trace_visit(FILE *fd, int depth, struct ctf_node *node, struct ctf_trace *trace) +/* 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) { int ret = 0; struct ctf_node *iter; + int env_clock_done = 0; - if (trace->type_scope) - return -EEXIST; - trace->type_scope = new_type_scope(trace->root_type_scope); - trace->definition_scope = new_definition_scope(trace->root_definition_scope); - trace->streams = g_ptr_array_new(); - cds_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_EVENT_FIELD_IS_SET(trace, major)) { - ret = -EPERM; - goto error; - } - if (!CTF_EVENT_FIELD_IS_SET(trace, minor)) { - ret = -EPERM; - goto error; - } - if (!CTF_EVENT_FIELD_IS_SET(trace, uuid)) { - ret = -EPERM; - goto error; - } - if (!CTF_EVENT_FIELD_IS_SET(trace, word_size)) { - ret = -EPERM; - goto error; - } - return 0; - -error: - g_ptr_array_free(trace->streams, TRUE); - free_definition_scope(stream->definition_scope); - free_type_scope(stream->type_scope); - return ret; -} + printf_verbose("CTF visitor: metadata construction... "); + 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); -int _ctf_visitor(FILE *fd, int depth, struct ctf_node *node, struct ctf_trace *trace) -{ - int ret = 0; - struct ctf_node *iter; +retry: + trace->root_declaration_scope = new_declaration_scope(NULL); switch (node->type) { case NODE_ROOT: - cds_list_for_each_entry(iter, &node->u.root._typedef, - siblings) { - ret = ctf_typedef_visit(fd, depth + 1, - &iter->u._typedef.declaration_specifier, - &iter->u._typedef.type_declarators, - trace->type_scope, trace->definition_scope); - if (ret) - return ret; + if (!env_clock_done) { + /* + * declarations need to query clock hash table, + * so clock need to be treated first. + */ + if (bt_list_empty(&node->u.root.clock)) { + ctf_clock_default(fd, depth + 1, trace); + } else { + bt_list_for_each_entry(iter, &node->u.root.clock, siblings) { + ret = ctf_clock_visit(fd, depth + 1, iter, + trace); + if (ret) { + fprintf(fd, "[error] %s: clock declaration error\n", __func__); + goto error; + } + } + } + env_clock_done = 1; } - cds_list_for_each_entry(iter, &node->u.root.typealias, + bt_list_for_each_entry(iter, &node->u.root.declaration_list, siblings) { - ret = ctf_typealias_visit(fd, depth + 1, - &iter->u.typealias.target, &iter->u.typealias.alias - trace->type_scope, trace->definition_scope); - if (ret) - return ret; - } - cds_list_for_each_entry(iter, &node->u.root.declaration_specifier, siblings) { - ret = ctf_declaration_specifier_visit(fd, depth, iter, - trace->root_type_scope, - trace->root_definition_scope); - if (ret) - return ret; + ret = ctf_root_declaration_visit(fd, depth + 1, iter, trace); + if (ret) { + fprintf(fd, "[error] %s: root declaration error\n", __func__); + goto error; + } } - cds_list_for_each_entry(iter, &node->u.root.trace, siblings) { + bt_list_for_each_entry(iter, &node->u.root.trace, siblings) { ret = ctf_trace_visit(fd, depth + 1, iter, trace); - if (ret) - return ret; - } - cds_list_for_each_entry(iter, &node->u.root.stream, siblings) { - ret = ctf_stream_visit(fd, depth + 1, iter, - trace->type_scope, trace); - if (ret) - return ret; - } - cds_list_for_each_entry(iter, &node->u.root.event, siblings) { - ret = ctf_event_visit(fd, depth + 1, iter, - trace->type_scope, trace); - if (ret) - return ret; - } - break; - - case NODE_TYPEALIAS_TARGET: - print_tabs(fd, depth); - fprintf(fd, "\n"); - depth++; - - print_tabs(fd, depth); - fprintf(fd, "\n"); - cds_list_for_each_entry(iter, &node->u.typealias_target.declaration_specifier, siblings) { - ret = ctf_visitor_print_xml(fd, depth + 1, iter); - if (ret) - return ret; - } - print_tabs(fd, depth); - fprintf(fd, "\n"); - - print_tabs(fd, depth); - fprintf(fd, "\n"); - cds_list_for_each_entry(iter, &node->u.typealias_target.type_declarators, siblings) { - ret = ctf_visitor_print_xml(fd, depth + 1, iter); - if (ret) - return ret; - } - print_tabs(fd, depth); - fprintf(fd, "\n"); - - depth--; - print_tabs(fd, depth); - fprintf(fd, "\n"); - break; - case NODE_TYPEALIAS_ALIAS: - print_tabs(fd, depth); - fprintf(fd, "\n"); - depth++; - - print_tabs(fd, depth); - fprintf(fd, "\n"); - cds_list_for_each_entry(iter, &node->u.typealias_alias.declaration_specifier, siblings) { - ret = ctf_visitor_print_xml(fd, depth + 1, iter); - if (ret) - return ret; - } - print_tabs(fd, depth); - fprintf(fd, "\n"); - - print_tabs(fd, depth); - fprintf(fd, "\n"); - cds_list_for_each_entry(iter, &node->u.typealias_alias.type_declarators, siblings) { - ret = ctf_visitor_print_xml(fd, depth + 1, iter); - if (ret) - return ret; - } - print_tabs(fd, depth); - fprintf(fd, "\n"); - - depth--; - print_tabs(fd, depth); - fprintf(fd, "\n"); - break; - case NODE_TYPEALIAS: - print_tabs(fd, depth); - fprintf(fd, "\n"); - ret = ctf_visitor_print_xml(fd, depth + 1, node->u.typealias.target); - if (ret) - return ret; - ret = ctf_visitor_print_xml(fd, depth + 1, node->u.typealias.alias); - if (ret) - return ret; - print_tabs(fd, depth); - fprintf(fd, "\n"); - break; - - case NODE_TYPE_SPECIFIER: - ret = ctf_visitor_print_type_specifier(fd, depth, node); - if (ret) - return ret; - break; - case NODE_POINTER: - print_tabs(fd, depth); - if (node->u.pointer.const_qualifier) - fprintf(fd, "\n"); - else - fprintf(fd, "\n"); - break; - case NODE_TYPE_DECLARATOR: - ret = ctf_visitor_print_type_declarator(fd, depth, node); - if (ret) - return ret; - break; - - case NODE_FLOATING_POINT: - print_tabs(fd, depth); - fprintf(fd, "\n"); - cds_list_for_each_entry(iter, &node->u.floating_point.expressions, siblings) { - ret = ctf_visitor_print_xml(fd, depth + 1, iter); - if (ret) - return ret; - } - print_tabs(fd, depth); - fprintf(fd, "\n"); - break; - case NODE_INTEGER: - print_tabs(fd, depth); - fprintf(fd, "\n"); - cds_list_for_each_entry(iter, &node->u.integer.expressions, siblings) { - ret = ctf_visitor_print_xml(fd, depth + 1, iter); - if (ret) - return ret; - } - print_tabs(fd, depth); - fprintf(fd, "\n"); - break; - case NODE_STRING: - print_tabs(fd, depth); - fprintf(fd, "\n"); - cds_list_for_each_entry(iter, &node->u.string.expressions, siblings) { - ret = ctf_visitor_print_xml(fd, depth + 1, iter); - if (ret) - return ret; - } - print_tabs(fd, depth); - fprintf(fd, "\n"); - break; - case NODE_ENUMERATOR: - print_tabs(fd, depth); - fprintf(fd, "u.enumerator.id) - fprintf(fd, " id=\"%s\"", node->u.enumerator.id); - fprintf(fd, ">\n"); - cds_list_for_each_entry(iter, &node->u.enumerator.values, siblings) { - ret = ctf_visitor_print_xml(fd, depth + 1, iter); - if (ret) - return ret; + if (ret == -EINTR) { + free_declaration_scope(trace->root_declaration_scope); + /* + * Need to restart creation of type + * definitions, aliases and + * trace header declarations. + */ + goto retry; + } + if (ret) { + fprintf(fd, "[error] %s: trace declaration error\n", __func__); + goto error; + } } - print_tabs(fd, depth); - fprintf(fd, "\n"); - break; - case NODE_ENUM: - print_tabs(fd, depth); - if (node->u._struct.name) - fprintf(fd, "\n", - node->u._enum.enum_id); - else - fprintf(fd, "\n"); - depth++; - - if (node->u._enum.container_type) { - print_tabs(fd, depth); - fprintf(fd, "\n"); - ret = ctf_visitor_print_xml(fd, depth + 1, node->u._enum.container_type); - if (ret) - return ret; - print_tabs(fd, depth); - fprintf(fd, "\n"); + 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; + } } - - print_tabs(fd, depth); - fprintf(fd, "\n"); - cds_list_for_each_entry(iter, &node->u._enum.enumerator_list, siblings) { - ret = ctf_visitor_print_xml(fd, depth + 1, iter); - if (ret) - return ret; + if (!trace->streams) { + fprintf(fd, "[error] %s: missing trace declaration\n", __func__); + ret = -EINVAL; + goto error; } - print_tabs(fd, depth); - fprintf(fd, "\n"); - - depth--; - print_tabs(fd, depth); - fprintf(fd, "\n"); - break; - case NODE_STRUCT_OR_VARIANT_DECLARATION: - print_tabs(fd, depth); - fprintf(fd, "\n"); - cds_list_for_each_entry(iter, &node->u.struct_or_variant_declaration.declaration_specifier, siblings) { - ret = ctf_visitor_print_xml(fd, depth + 1, iter); - if (ret) - return ret; + bt_list_for_each_entry(iter, &node->u.root.env, siblings) { + ret = ctf_env_visit(fd, depth + 1, iter, trace); + if (ret) { + fprintf(fd, "[error] %s: env declaration error\n", __func__); + goto error; + } } - print_tabs(fd, depth); - fprintf(fd, "\n"); - - print_tabs(fd, depth); - fprintf(fd, "\n"); - cds_list_for_each_entry(iter, &node->u.struct_or_variant_declaration.type_declarators, siblings) { - ret = ctf_visitor_print_xml(fd, depth + 1, iter); - if (ret) - return ret; - } - print_tabs(fd, depth); - fprintf(fd, "\n"); - break; - case NODE_VARIANT: - print_tabs(fd, depth); - fprintf(fd, "u.variant.name) - fprintf(fd, " name=\"%s\"", node->u.variant.name); - if (node->u.variant.choice) - fprintf(fd, " choice=\"%s\"", node->u.variant.choice); - fprintf(fd, ">\n"); - cds_list_for_each_entry(iter, &node->u.variant.declaration_list, siblings) { - ret = ctf_visitor_print_xml(fd, depth + 1, iter); - if (ret) - return ret; + bt_list_for_each_entry(iter, &node->u.root.stream, siblings) { + ret = ctf_stream_visit(fd, depth + 1, iter, + trace->root_declaration_scope, trace); + if (ret) { + fprintf(fd, "[error] %s: stream declaration error\n", __func__); + goto error; + } } - print_tabs(fd, depth); - fprintf(fd, "\n"); - break; - case NODE_STRUCT: - print_tabs(fd, depth); - if (node->u._struct.name) - fprintf(fd, "\n", - node->u._struct.name); - else - fprintf(fd, "\n"); - cds_list_for_each_entry(iter, &node->u._struct.declaration_list, siblings) { - ret = ctf_visitor_print_xml(fd, depth + 1, iter); - if (ret) - return ret; + bt_list_for_each_entry(iter, &node->u.root.event, siblings) { + ret = ctf_event_visit(fd, depth + 1, iter, + trace->root_declaration_scope, trace); + if (ret) { + fprintf(fd, "[error] %s: event declaration error\n", __func__); + goto error; + } } - print_tabs(fd, depth); - fprintf(fd, "\n"); break; - case NODE_UNKNOWN: default: - fprintf(stderr, "[error] %s: unknown node type %d\n", __func__, + fprintf(fd, "[error] %s: unknown node type %d\n", __func__, (int) node->type); - return -EINVAL; + ret = -EINVAL; + goto error; } + printf_verbose("done.\n"); + return ret; + +error: + free_declaration_scope(trace->root_declaration_scope); + g_hash_table_destroy(trace->callsites); + g_hash_table_destroy(trace->clocks); return ret; }