--- /dev/null
+/*
+ * SPDX-License-Identifier: MIT
+ *
+ * Copyright 2011-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ */
+
+#ifndef _CTF_AST_H
+#define _CTF_AST_H
+
+#include <glib.h>
+#include <stdint.h>
+#include <stdio.h>
+
+#include <babeltrace2/babeltrace.h>
+
+#include "common/assert.h"
+#include "common/list.h"
+
+#include "ctf-meta.hpp"
+#include "decoder.hpp"
+
+// the parameter name (of the reentrant 'yyparse' function)
+// data is a pointer to a 'SParserParam' structure
+//#define YYPARSE_PARAM scanner
+
+struct ctf_node;
+struct ctf_parser;
+struct ctf_visitor_generate_ir;
+
+#define EINCOMPLETE 1000
+
+#define FOREACH_CTF_NODES(F) \
+ F(NODE_UNKNOWN) \
+ F(NODE_ROOT) \
+ F(NODE_ERROR) \
+ F(NODE_EVENT) \
+ F(NODE_STREAM) \
+ F(NODE_ENV) \
+ F(NODE_TRACE) \
+ F(NODE_CLOCK) \
+ F(NODE_CALLSITE) \
+ F(NODE_CTF_EXPRESSION) \
+ F(NODE_UNARY_EXPRESSION) \
+ F(NODE_TYPEDEF) \
+ F(NODE_TYPEALIAS_TARGET) \
+ F(NODE_TYPEALIAS_ALIAS) \
+ F(NODE_TYPEALIAS) \
+ F(NODE_TYPE_SPECIFIER) \
+ F(NODE_TYPE_SPECIFIER_LIST) \
+ F(NODE_POINTER) \
+ F(NODE_TYPE_DECLARATOR) \
+ F(NODE_FLOATING_POINT) \
+ F(NODE_INTEGER) \
+ F(NODE_STRING) \
+ F(NODE_ENUMERATOR) \
+ F(NODE_ENUM) \
+ F(NODE_STRUCT_OR_VARIANT_DECLARATION) \
+ F(NODE_VARIANT) \
+ F(NODE_STRUCT)
+
+enum node_type
+{
+#define ENTRY(S) S,
+ FOREACH_CTF_NODES(ENTRY)
+#undef ENTRY
+};
+
+enum ctf_unary
+{
+ UNARY_UNKNOWN = 0,
+ UNARY_STRING,
+ UNARY_SIGNED_CONSTANT,
+ UNARY_UNSIGNED_CONSTANT,
+ UNARY_SBRAC,
+};
+
+enum ctf_unary_link
+{
+ UNARY_LINK_UNKNOWN = 0,
+ UNARY_DOTLINK,
+ UNARY_ARROWLINK,
+ UNARY_DOTDOTDOT,
+};
+
+enum ctf_typedec
+{
+ TYPEDEC_UNKNOWN = 0,
+ TYPEDEC_ID, /* identifier */
+ TYPEDEC_NESTED, /* (), array or sequence */
+};
+
+enum ctf_typespec
+{
+ TYPESPEC_UNKNOWN = 0,
+ TYPESPEC_VOID,
+ TYPESPEC_CHAR,
+ TYPESPEC_SHORT,
+ TYPESPEC_INT,
+ TYPESPEC_LONG,
+ TYPESPEC_FLOAT,
+ TYPESPEC_DOUBLE,
+ TYPESPEC_SIGNED,
+ TYPESPEC_UNSIGNED,
+ TYPESPEC_BOOL,
+ TYPESPEC_COMPLEX,
+ TYPESPEC_IMAGINARY,
+ TYPESPEC_CONST,
+ TYPESPEC_ID_TYPE,
+ TYPESPEC_FLOATING_POINT,
+ TYPESPEC_INTEGER,
+ TYPESPEC_STRING,
+ TYPESPEC_STRUCT,
+ TYPESPEC_VARIANT,
+ TYPESPEC_ENUM,
+};
+
+struct ctf_node
+{
+ /*
+ * Parent node is only set on demand by specific visitor.
+ */
+ struct ctf_node *parent;
+ struct bt_list_head siblings;
+ struct bt_list_head tmp_head;
+ unsigned int lineno;
+ /*
+ * We mark nodes visited in the generate-ir phase (last
+ * phase). We only mark the 1-depth level nodes as visited
+ * (never the root node, and not their sub-nodes). This allows
+ * skipping already visited nodes when doing incremental
+ * metadata append.
+ */
+ int visited;
+
+ enum node_type type;
+ union
+ {
+ struct
+ {
+ } unknown;
+ struct
+ {
+ /*
+ * Children nodes are ctf_expression, field_class_def,
+ * field_class_alias and field_class_specifier_list.
+ */
+ struct bt_list_head declaration_list;
+ struct bt_list_head trace;
+ struct bt_list_head env;
+ struct bt_list_head stream;
+ struct bt_list_head event;
+ struct bt_list_head clock;
+ struct bt_list_head callsite;
+ } root;
+ struct
+ {
+ /*
+ * Children nodes are ctf_expression, field_class_def,
+ * field_class_alias and field_class_specifier_list.
+ */
+ struct bt_list_head declaration_list;
+ } event;
+ struct
+ {
+ /*
+ * Children nodes are ctf_expression, field_class_def,
+ * field_class_alias and field_class_specifier_list.
+ */
+ struct bt_list_head declaration_list;
+ } stream;
+ struct
+ {
+ /*
+ * Children nodes are ctf_expression, field_class_def,
+ * field_class_alias and field_class_specifier_list.
+ */
+ struct bt_list_head declaration_list;
+ } env;
+ struct
+ {
+ /*
+ * Children nodes are ctf_expression, field_class_def,
+ * field_class_alias and field_class_specifier_list.
+ */
+ struct bt_list_head declaration_list;
+ } trace;
+ struct
+ {
+ /*
+ * Children nodes are ctf_expression, field_class_def,
+ * field_class_alias and field_class_specifier_list.
+ */
+ struct bt_list_head declaration_list;
+ } clock;
+ struct
+ {
+ /*
+ * Children nodes are ctf_expression, field_class_def,
+ * field_class_alias and field_class_specifier_list.
+ */
+ struct bt_list_head declaration_list;
+ } callsite;
+ struct
+ {
+ struct bt_list_head left; /* Should be string */
+ struct bt_list_head right; /* Unary exp. or type */
+ } ctf_expression;
+ struct
+ {
+ ctf_unary type;
+ union
+ {
+ /*
+ * string for identifier, id_type, keywords,
+ * string literals and character constants.
+ */
+ char *string;
+ int64_t signed_constant;
+ uint64_t unsigned_constant;
+ struct ctf_node *sbrac_exp;
+ } u;
+ ctf_unary_link link;
+ } unary_expression;
+ struct
+ {
+ struct ctf_node *field_class_specifier_list;
+ struct bt_list_head field_class_declarators;
+ } field_class_def;
+ /* new type is "alias", existing type "target" */
+ struct
+ {
+ struct ctf_node *field_class_specifier_list;
+ struct bt_list_head field_class_declarators;
+ } field_class_alias_target;
+ struct
+ {
+ struct ctf_node *field_class_specifier_list;
+ struct bt_list_head field_class_declarators;
+ } field_class_alias_name;
+ struct
+ {
+ struct ctf_node *target;
+ struct ctf_node *alias;
+ } field_class_alias;
+ struct
+ {
+ ctf_typespec type;
+ /* For struct, variant and enum */
+ struct ctf_node *node;
+ const char *id_type;
+ } field_class_specifier;
+ struct
+ {
+ /* list of field_class_specifier */
+ struct bt_list_head head;
+ } field_class_specifier_list;
+ struct
+ {
+ unsigned int const_qualifier;
+ } pointer;
+ struct
+ {
+ struct bt_list_head pointers;
+ ctf_typedec type;
+ union
+ {
+ char *id;
+ struct
+ {
+ /* typedec has no pointer list */
+ struct ctf_node *field_class_declarator;
+ /*
+ * unary expression (value) or
+ * field_class_specifier_list.
+ */
+ struct bt_list_head length;
+ /* for abstract type declarator */
+ unsigned int abstract_array;
+ } nested;
+ } u;
+ struct ctf_node *bitfield_len;
+ } field_class_declarator;
+ struct
+ {
+ /* Children nodes are ctf_expression. */
+ struct bt_list_head expressions;
+ } floating_point;
+ struct
+ {
+ /* Children nodes are ctf_expression. */
+ struct bt_list_head expressions;
+ } integer;
+ struct
+ {
+ /* Children nodes are ctf_expression. */
+ struct bt_list_head expressions;
+ } string;
+ struct
+ {
+ char *id;
+ /*
+ * Range list or single value node. Contains unary
+ * expressions.
+ */
+ struct bt_list_head values;
+ } enumerator;
+ struct
+ {
+ char *enum_id;
+ /*
+ * Either NULL, or points to unary expression or
+ * field_class_specifier_list.
+ */
+ struct ctf_node *container_field_class;
+ struct bt_list_head enumerator_list;
+ int has_body;
+ } _enum;
+ struct
+ {
+ struct ctf_node *field_class_specifier_list;
+ struct bt_list_head field_class_declarators;
+ } struct_or_variant_declaration;
+ struct
+ {
+ char *name;
+ char *choice;
+ /*
+ * list of field_class_def, field_class_alias and
+ * declarations
+ */
+ struct bt_list_head declaration_list;
+ int has_body;
+ } variant;
+ struct
+ {
+ char *name;
+ /*
+ * list of field_class_def, field_class_alias and
+ * declarations
+ */
+ struct bt_list_head declaration_list;
+ int has_body;
+ struct bt_list_head min_align; /* align() attribute */
+ } _struct;
+ } u;
+};
+
+struct ctf_ast
+{
+ struct ctf_node root;
+};
+
+const char *node_type(struct ctf_node *node);
+
+struct meta_log_config;
+
+struct ctf_visitor_generate_ir *
+ctf_visitor_generate_ir_create(const struct ctf_metadata_decoder_config *config);
+
+void ctf_visitor_generate_ir_destroy(struct ctf_visitor_generate_ir *visitor);
+
+bt_trace_class *ctf_visitor_generate_ir_get_ir_trace_class(struct ctf_visitor_generate_ir *visitor);
+
+struct ctf_trace_class *
+ctf_visitor_generate_ir_borrow_ctf_trace_class(struct ctf_visitor_generate_ir *visitor);
+
+int ctf_visitor_generate_ir_visit_node(struct ctf_visitor_generate_ir *visitor,
+ struct ctf_node *node);
+
+int ctf_visitor_semantic_check(int depth, struct ctf_node *node, struct meta_log_config *log_cfg);
+
+int ctf_visitor_parent_links(int depth, struct ctf_node *node, struct meta_log_config *log_cfg);
+
+static inline char *ctf_ast_concatenate_unary_strings(struct bt_list_head *head)
+{
+ int i = 0;
+ GString *str;
+ struct ctf_node *node;
+
+ str = g_string_new(NULL);
+ BT_ASSERT(str);
+
+ bt_list_for_each_entry (node, head, siblings) {
+ char *src_string;
+
+ if (node->type != NODE_UNARY_EXPRESSION || node->u.unary_expression.type != UNARY_STRING ||
+ !((node->u.unary_expression.link != UNARY_LINK_UNKNOWN) ^ (i == 0))) {
+ goto error;
+ }
+
+ 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++;
+ }
+
+ /* Destroys the container, returns the underlying string */
+ return g_string_free(str, FALSE);
+
+error:
+ /* This always returns NULL */
+ return g_string_free(str, TRUE);
+}
+
+#ifndef BT_COMP_LOG_CUR_LVL
+# define BT_AST_LOG_LEVEL_UNUSED_ATTR __attribute__((unused))
+#else
+# define BT_AST_LOG_LEVEL_UNUSED_ATTR
+#endif
+
+static inline int ctf_ast_get_unary_uuid(struct bt_list_head *head, bt_uuid_t uuid,
+ int log_level BT_AST_LOG_LEVEL_UNUSED_ATTR,
+ bt_self_component *self_comp BT_AST_LOG_LEVEL_UNUSED_ATTR)
+{
+ int i = 0;
+ int ret = 0;
+ struct ctf_node *node;
+
+ bt_list_for_each_entry (node, head, siblings) {
+ int uexpr_type = node->u.unary_expression.type;
+ int uexpr_link = node->u.unary_expression.link;
+ const char *src_string;
+
+ if (node->type != NODE_UNARY_EXPRESSION || uexpr_type != UNARY_STRING ||
+ uexpr_link != UNARY_LINK_UNKNOWN || i != 0) {
+ ret = -EINVAL;
+ goto end;
+ }
+
+ src_string = node->u.unary_expression.u.string;
+ ret = bt_uuid_from_str(src_string, uuid);
+ if (ret) {
+#ifdef BT_COMP_LOG_CUR_LVL
+ BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_comp,
+ "Cannot parse UUID: uuid=\"%s\"", src_string);
+#endif
+ goto end;
+ }
+ }
+
+end:
+ return ret;
+}
+
+#endif /* _CTF_AST_H */
projects / babeltrace.git / blobdiff