| 1 | /* |
| 2 | * ctf-visitor-generate-io-struct.c |
| 3 | * |
| 4 | * Common Trace Format Metadata Visitor (generate I/O structures). |
| 5 | * |
| 6 | * Copyright 2010 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| 7 | * |
| 8 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 9 | * of this software and associated documentation files (the "Software"), to deal |
| 10 | * in the Software without restriction, including without limitation the rights |
| 11 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 12 | * copies of the Software, and to permit persons to whom the Software is |
| 13 | * furnished to do so, subject to the following conditions: |
| 14 | * |
| 15 | * The above copyright notice and this permission notice shall be included in |
| 16 | * all copies or substantial portions of the Software. |
| 17 | */ |
| 18 | |
| 19 | #include <stdio.h> |
| 20 | #include <unistd.h> |
| 21 | #include <string.h> |
| 22 | #include <stdlib.h> |
| 23 | #include <assert.h> |
| 24 | #include <glib.h> |
| 25 | #include <inttypes.h> |
| 26 | #include <endian.h> |
| 27 | #include <errno.h> |
| 28 | #include <babeltrace/list.h> |
| 29 | #include <uuid/uuid.h> |
| 30 | #include "ctf-scanner.h" |
| 31 | #include "ctf-parser.h" |
| 32 | #include "ctf-ast.h" |
| 33 | |
| 34 | #define fprintf_dbg(fd, fmt, args...) fprintf(fd, "%s: " fmt, __func__, ## args) |
| 35 | |
| 36 | #define _cds_list_first_entry(ptr, type, member) \ |
| 37 | cds_list_entry((ptr)->next, type, member) |
| 38 | |
| 39 | static |
| 40 | struct declaration *ctf_declaration_specifier_visit(FILE *fd, |
| 41 | int depth, struct cds_list_head *head, |
| 42 | struct declaration_scope *declaration_scope, |
| 43 | struct ctf_trace *trace); |
| 44 | |
| 45 | /* |
| 46 | * String returned must be freed by the caller using g_free. |
| 47 | */ |
| 48 | static |
| 49 | char *concatenate_unary_strings(struct cds_list_head *head) |
| 50 | { |
| 51 | struct ctf_node *node; |
| 52 | GString *str; |
| 53 | int i = 0; |
| 54 | |
| 55 | str = g_string_new(); |
| 56 | cds_list_for_each_entry(node, head, siblings) { |
| 57 | char *src_string; |
| 58 | |
| 59 | assert(node->type == NODE_UNARY_EXPRESSION); |
| 60 | assert(node->u.unary_expression.type == UNARY_STRING); |
| 61 | assert((node->u.unary_expression.link == UNARY_LINK_UNKNOWN) |
| 62 | ^ (i != 0)) |
| 63 | switch (node->u.unary_expression.link) { |
| 64 | case UNARY_DOTLINK: |
| 65 | g_string_append(str, ".") |
| 66 | break; |
| 67 | case UNARY_ARROWLINK: |
| 68 | g_string_append(str, "->") |
| 69 | break; |
| 70 | case UNARY_DOTDOTDOT: |
| 71 | g_string_append(str, "...") |
| 72 | break; |
| 73 | } |
| 74 | src_string = u.unary_expression.u.string; |
| 75 | g_string_append(str, src_string); |
| 76 | i++; |
| 77 | } |
| 78 | return g_string_free(str, FALSE); |
| 79 | } |
| 80 | |
| 81 | static |
| 82 | int get_unary_unsigned(struct cds_list_head *head, uint64_t *value) |
| 83 | { |
| 84 | struct ctf_node *node; |
| 85 | int i = 0; |
| 86 | |
| 87 | cds_list_for_each_entry(node, head, siblings) { |
| 88 | assert(node->type == NODE_UNARY_EXPRESSION); |
| 89 | assert(node->u.unary_expression.type == UNARY_UNSIGNED_CONSTANT); |
| 90 | assert(node->u.unary_expression.link == UNARY_LINK_UNKNOWN); |
| 91 | assert(i == 0); |
| 92 | *value = node->u.unary_expression.unsigned_constant |
| 93 | i++; |
| 94 | } |
| 95 | return 0; |
| 96 | } |
| 97 | |
| 98 | static |
| 99 | int get_unary_uuid(struct cds_list_head *head, uuid_t *uuid) |
| 100 | { |
| 101 | struct ctf_node *node; |
| 102 | int i = 0; |
| 103 | int ret = -1; |
| 104 | |
| 105 | cds_list_for_each_entry(node, head, siblings) { |
| 106 | const char *src_string; |
| 107 | |
| 108 | assert(node->type == NODE_UNARY_EXPRESSION); |
| 109 | assert(node->u.unary_expression.type == UNARY_STRING); |
| 110 | assert(node->u.unary_expression.link == UNARY_LINK_UNKNOWN); |
| 111 | assert(i == 0); |
| 112 | src_string = u.unary_expression.u.string; |
| 113 | ret = uuid_parse(u.unary_expression.u.string, *uuid); |
| 114 | } |
| 115 | return ret; |
| 116 | } |
| 117 | |
| 118 | static |
| 119 | struct ctf_stream *trace_stream_lookup(struct ctf_trace *trace, uint64_t stream_id) |
| 120 | { |
| 121 | if (trace->streams->len <= stream_id) |
| 122 | return NULL; |
| 123 | return g_ptr_array_index(trace->streams, stream_id); |
| 124 | } |
| 125 | |
| 126 | static |
| 127 | void visit_declaration_specifier(struct cds_list_head *declaration_specifier, GString *str) |
| 128 | { |
| 129 | struct ctf_node *iter; |
| 130 | int alias_item_nr = 0; |
| 131 | int err; |
| 132 | |
| 133 | cds_list_for_each_entry(iter, declaration_specifier, siblings) { |
| 134 | if (alias_item_nr != 0) |
| 135 | g_string_append(str, " "); |
| 136 | alias_item_nr++; |
| 137 | |
| 138 | switch (iter->type) { |
| 139 | case NODE_TYPE_SPECIFIER: |
| 140 | switch (iter->u.type_specifier.type) { |
| 141 | case TYPESPEC_VOID: |
| 142 | g_string_append(str, "void"); |
| 143 | break; |
| 144 | case TYPESPEC_CHAR: |
| 145 | g_string_append(str, "char"); |
| 146 | break; |
| 147 | case TYPESPEC_SHORT: |
| 148 | g_string_append(str, "short"); |
| 149 | break; |
| 150 | case TYPESPEC_INT: |
| 151 | g_string_append(str, "int"); |
| 152 | break; |
| 153 | case TYPESPEC_LONG: |
| 154 | g_string_append(str, "long"); |
| 155 | break; |
| 156 | case TYPESPEC_FLOAT: |
| 157 | g_string_append(str, "float"); |
| 158 | break; |
| 159 | case TYPESPEC_DOUBLE: |
| 160 | g_string_append(str, "double"); |
| 161 | break; |
| 162 | case TYPESPEC_SIGNED: |
| 163 | g_string_append(str, "signed"); |
| 164 | break; |
| 165 | case TYPESPEC_UNSIGNED: |
| 166 | g_string_append(str, "unsigned"); |
| 167 | break; |
| 168 | case TYPESPEC_BOOL: |
| 169 | g_string_append(str, "bool"); |
| 170 | break; |
| 171 | case TYPESPEC_COMPLEX: |
| 172 | g_string_append(str, "_Complex"); |
| 173 | break; |
| 174 | case TYPESPEC_IMAGINARY: |
| 175 | g_string_append(str, "_Imaginary"); |
| 176 | break; |
| 177 | case TYPESPEC_CONST: |
| 178 | g_string_append(str, "const"); |
| 179 | break; |
| 180 | case TYPESPEC_ID_TYPE: |
| 181 | if (iter->u.type_specifier.id_type) |
| 182 | g_string_append(str, iter->u.type_specifier.id_type); |
| 183 | break; |
| 184 | default: |
| 185 | fprintf(stderr, "[error] %s: unknown specifier\n", __func__); |
| 186 | err = -EINVAL; |
| 187 | goto error; |
| 188 | } |
| 189 | break; |
| 190 | case NODE_ENUM: |
| 191 | if (!iter->u._enum.enum_id) { |
| 192 | fprintf(stderr, "[error] %s: unexpected empty enum ID\n", __func__); |
| 193 | err = -EINVAL; |
| 194 | goto error; |
| 195 | } |
| 196 | g_string_append(str, "enum "); |
| 197 | g_string_append(str, iter->u._enum.enum_id); |
| 198 | break; |
| 199 | case NODE_VARIANT: |
| 200 | if (!iter->u.variant.name) { |
| 201 | fprintf(stderr, "[error] %s: unexpected empty variant name\n", __func__); |
| 202 | err = -EINVAL; |
| 203 | goto error; |
| 204 | } |
| 205 | g_string_append(str, "variant "); |
| 206 | g_string_append(str, iter->u.variant.name); |
| 207 | break; |
| 208 | case NODE_STRUCT: |
| 209 | if (!iter->u._struct.name) { |
| 210 | fprintf(stderr, "[error] %s: unexpected empty variant name\n", __func__); |
| 211 | err = -EINVAL; |
| 212 | goto error; |
| 213 | } |
| 214 | g_string_append(str, "struct "); |
| 215 | g_string_append(str, iter->u._struct.name); |
| 216 | break; |
| 217 | default: |
| 218 | fprintf(stderr, "[error] %s: unexpected node type %d\n", __func__, (int) iter->type); |
| 219 | err = -EINVAL; |
| 220 | goto error; |
| 221 | } |
| 222 | } |
| 223 | return 0; |
| 224 | error: |
| 225 | return err; |
| 226 | } |
| 227 | |
| 228 | static |
| 229 | GQuark create_typealias_identifier(int fd, int depth, |
| 230 | struct cds_list_head *declaration_specifier, |
| 231 | struct ctf_node *node_type_declarator) |
| 232 | { |
| 233 | GString *str; |
| 234 | const char *str_c; |
| 235 | GQuark alias_q; |
| 236 | int ret; |
| 237 | |
| 238 | str = g_string_new(); |
| 239 | ret = visit_declaration_specifier(declaration_specifier, str); |
| 240 | if (ret) { |
| 241 | g_string_free(str, TRUE); |
| 242 | return 0; |
| 243 | } |
| 244 | cds_list_for_each_entry(iter, &node_type_declarator->u.type_declarator.pointers, siblings) { |
| 245 | g_string_append(str, " *"); |
| 246 | if (iter->u.pointer.const_qualifier) |
| 247 | g_string_append(str, " const"); |
| 248 | } |
| 249 | str_c = g_string_free(str, FALSE); |
| 250 | alias_q = g_quark_from_string(str_c); |
| 251 | g_free(str_c); |
| 252 | return alias_q; |
| 253 | } |
| 254 | |
| 255 | static |
| 256 | struct declaration *ctf_type_declarator_visit(int fd, int depth, |
| 257 | struct cds_list_head *declaration_specifier, |
| 258 | GQuark *field_name, |
| 259 | struct ctf_node *node_type_declarator, |
| 260 | struct declaration_scope *declaration_scope, |
| 261 | struct declaration *nested_declaration) |
| 262 | { |
| 263 | /* |
| 264 | * Visit type declarator by first taking care of sequence/array |
| 265 | * (recursively). Then, when we get to the identifier, take care |
| 266 | * of pointers. |
| 267 | */ |
| 268 | |
| 269 | assert(node_type_declarator->u.type_declarator.type != TYPEDEC_UNKNOWN); |
| 270 | |
| 271 | /* TODO: gcc bitfields not supported yet. */ |
| 272 | if (node_type_declarator->u.type_declarator.bitfield_len != NULL) { |
| 273 | fprintf(stderr, "[error] %s: gcc bitfields are not supported yet.\n", __func__); |
| 274 | return NULL; |
| 275 | } |
| 276 | |
| 277 | if (!nested_declaration) { |
| 278 | if (!cds_list_empty(&node_type_declarator->u.type_declarator.pointers)) { |
| 279 | GQuark alias_q; |
| 280 | |
| 281 | /* |
| 282 | * If we have a pointer declarator, it _has_ to be present in |
| 283 | * the typealiases (else fail). |
| 284 | */ |
| 285 | alias_q = create_typealias_identifier(fd, depth, |
| 286 | declaration_specifier, node_type_declarator); |
| 287 | nested_declaration = lookup_declaration(alias_q, declaration_scope); |
| 288 | if (!nested_declaration) { |
| 289 | fprintf(stderr, "[error] %s: cannot find typealias \"%s\".\n", __func__, g_quark_to_string(alias_q)); |
| 290 | return NULL; |
| 291 | } |
| 292 | } else { |
| 293 | nested_declaration = /* parse declaration_specifier */; |
| 294 | } |
| 295 | } |
| 296 | |
| 297 | if (node_type_declarator->u.type_declarator.type == TYPEDEC_ID) { |
| 298 | if (node_type_declarator->u.type_declarator.u.id) |
| 299 | *field_name = g_quark_from_string(node_type_declarator->u.type_declarator.u.id); |
| 300 | else |
| 301 | *field_name = 0; |
| 302 | return nested_declaration; |
| 303 | } else { |
| 304 | struct declaration *declaration; |
| 305 | struct node *length; |
| 306 | |
| 307 | /* TYPEDEC_NESTED */ |
| 308 | |
| 309 | /* create array/sequence, pass nested_declaration as child. */ |
| 310 | length = node_type_declarator->u.type_declarator.u.nested.length; |
| 311 | if (length) { |
| 312 | switch (length->type) { |
| 313 | case NODE_UNARY_EXPRESSION: |
| 314 | /* Array */ |
| 315 | /* TODO */ |
| 316 | ............. |
| 317 | declaration = /* create array */; |
| 318 | break; |
| 319 | case NODE_TYPE_SPECIFIER: |
| 320 | /* Sequence */ |
| 321 | declaration = /* create sequence */; |
| 322 | break; |
| 323 | default: |
| 324 | assert(0); |
| 325 | } |
| 326 | } |
| 327 | |
| 328 | /* Pass it as content of outer container */ |
| 329 | declaration = ctf_type_declarator_visit(fd, depth, |
| 330 | declaration_specifier, field_name, |
| 331 | node_type_declarator->u.type_declarator.u.nested.type_declarator, |
| 332 | declaration_scope, declaration); |
| 333 | return declaration; |
| 334 | } |
| 335 | } |
| 336 | |
| 337 | static |
| 338 | int ctf_struct_type_declarators_visit(int fd, int depth, |
| 339 | struct declaration_struct *struct_declaration, |
| 340 | struct cds_list_head *declaration_specifier, |
| 341 | struct cds_list_head *type_declarators, |
| 342 | struct declaration_scope *declaration_scope) |
| 343 | { |
| 344 | struct ctf_node *iter; |
| 345 | GQuark field_name; |
| 346 | |
| 347 | cds_list_for_each_entry(iter, type_declarators, siblings) { |
| 348 | struct declaration *field_declaration; |
| 349 | |
| 350 | field_declaration = ctf_type_declarator_visit(fd, depth, |
| 351 | declaration_specifier, |
| 352 | &field_name, iter, |
| 353 | struct_declaration->scope, |
| 354 | NULL); |
| 355 | struct_declaration_add_field(struct_declaration, |
| 356 | g_quark_to_string(field_name), |
| 357 | field_declaration); |
| 358 | } |
| 359 | return 0; |
| 360 | } |
| 361 | |
| 362 | static |
| 363 | int ctf_variant_type_declarators_visit(int fd, int depth, |
| 364 | struct declaration_variant *variant_declaration, |
| 365 | struct cds_list_head *declaration_specifier, |
| 366 | struct cds_list_head *type_declarators, |
| 367 | struct declaration_scope *declaration_scope) |
| 368 | { |
| 369 | struct ctf_node *iter; |
| 370 | GQuark field_name; |
| 371 | |
| 372 | cds_list_for_each_entry(iter, type_declarators, siblings) { |
| 373 | struct declaration *field_declaration; |
| 374 | |
| 375 | field_declaration = ctf_type_declarator_visit(fd, depth, |
| 376 | declaration_specifier, |
| 377 | &field_name, iter, |
| 378 | variant_declaration->scope, |
| 379 | NULL); |
| 380 | variant_declaration_add_field(variant_declaration, |
| 381 | g_quark_to_string(field_name), |
| 382 | field_declaration); |
| 383 | } |
| 384 | return 0; |
| 385 | } |
| 386 | |
| 387 | static |
| 388 | int ctf_typedef_visit(int fd, int depth, struct declaration_scope *scope, |
| 389 | struct cds_list_head *declaration_specifier, |
| 390 | struct cds_list_head *type_declarators) |
| 391 | { |
| 392 | struct ctf_node *iter; |
| 393 | GQuark identifier; |
| 394 | |
| 395 | cds_list_for_each_entry(iter, type_declarators, siblings) { |
| 396 | struct declaration *type_declaration; |
| 397 | int ret; |
| 398 | |
| 399 | type_declaration = ctf_type_declarator_visit(fd, depth, |
| 400 | declaration_specifier, |
| 401 | &identifier, iter, |
| 402 | scope, NULL); |
| 403 | ret = register_declaration(identifier, type_declaration, scope); |
| 404 | if (ret) { |
| 405 | type_declaration->declaration_free(type_declaration); |
| 406 | return ret; |
| 407 | } |
| 408 | } |
| 409 | return 0; |
| 410 | } |
| 411 | |
| 412 | static |
| 413 | int ctf_typealias_visit(int fd, int depth, struct declaration_scope *scope, |
| 414 | struct ctf_node *target, struct ctf_node *alias) |
| 415 | { |
| 416 | struct declaration *type_declaration; |
| 417 | struct ctf_node *iter, *node; |
| 418 | GQuark dummy_id; |
| 419 | GQuark alias_q; |
| 420 | |
| 421 | /* See ctf_visitor_type_declarator() in the semantic validator. */ |
| 422 | |
| 423 | /* |
| 424 | * Create target type declaration. |
| 425 | */ |
| 426 | |
| 427 | type_declaration = ctf_type_declarator_visit(fd, depth, |
| 428 | &target->u.typealias_target.declaration_specifier, |
| 429 | &dummy_id, &target->u.typealias_target.type_declarators, |
| 430 | scope, NULL); |
| 431 | if (!type_declaration) { |
| 432 | fprintf(stderr, "[error] %s: problem creating type declaration\n", __func__); |
| 433 | err = -EINVAL; |
| 434 | goto error; |
| 435 | } |
| 436 | /* |
| 437 | * The semantic validator does not check whether the target is |
| 438 | * abstract or not (if it has an identifier). Check it here. |
| 439 | */ |
| 440 | if (dummy_id != 0) { |
| 441 | fprintf(stderr, "[error] %s: expecting empty identifier\n", __func__); |
| 442 | err = -EINVAL; |
| 443 | goto error; |
| 444 | } |
| 445 | /* |
| 446 | * Create alias identifier. |
| 447 | */ |
| 448 | |
| 449 | node = _cds_list_first_entry(&alias->u.typealias_alias.type_declarators, |
| 450 | struct node, siblings); |
| 451 | alias_q = create_typealias_identifier(fd, depth, |
| 452 | &alias->u.typealias_alias.declaration_specifier, node); |
| 453 | ret = register_declaration(alias_q, type_declaration, scope); |
| 454 | if (ret) |
| 455 | goto error; |
| 456 | return 0; |
| 457 | |
| 458 | error: |
| 459 | type_declaration->declaration_free(type_declaration); |
| 460 | return ret; |
| 461 | } |
| 462 | |
| 463 | static |
| 464 | int ctf_struct_declaration_list_visit(int fd, int depth, |
| 465 | struct ctf_node *iter, struct declaration_struct *struct_declaration) |
| 466 | { |
| 467 | struct declaration *declaration; |
| 468 | int ret; |
| 469 | |
| 470 | switch (iter->type) { |
| 471 | case NODE_TYPEDEF: |
| 472 | /* For each declarator, declare type and add type to struct declaration scope */ |
| 473 | ret = ctf_typedef_visit(fd, depth, |
| 474 | struct_declaration->scope, |
| 475 | &iter->u._typedef.declaration_specifier, |
| 476 | &iter->u._typedef.type_declarators); |
| 477 | if (ret) |
| 478 | return ret; |
| 479 | break; |
| 480 | case NODE_TYPEALIAS: |
| 481 | /* Declare type with declarator and add type to struct declaration scope */ |
| 482 | ret = ctf_typealias_visit(fd, depth, |
| 483 | struct_declaration->scope, |
| 484 | iter->u.typealias.target, |
| 485 | iter->u.typealias.alias); |
| 486 | if (ret) |
| 487 | return ret; |
| 488 | break; |
| 489 | case NODE_STRUCT_OR_VARIANT_DECLARATION: |
| 490 | /* Add field to structure declaration */ |
| 491 | ret = ctf_struct_type_declarators_visit(fd, depth, |
| 492 | struct_declaration, |
| 493 | &iter->u.struct_or_variant_declaration.declaration_specifier, |
| 494 | &iter->u.struct_or_variant_declaration.type_declarators); |
| 495 | if (ret) |
| 496 | return ret; |
| 497 | break; |
| 498 | default: |
| 499 | fprintf(stderr, "[error] %s: unexpected node type %d\n", __func__, (int) iter->type); |
| 500 | assert(0); |
| 501 | } |
| 502 | return 0; |
| 503 | } |
| 504 | |
| 505 | static |
| 506 | int ctf_variant_declaration_list_visit(int fd, int depth, |
| 507 | struct ctf_node *iter, struct declaration_variant *variant_declaration) |
| 508 | { |
| 509 | struct declaration *declaration; |
| 510 | int ret; |
| 511 | |
| 512 | switch (iter->type) { |
| 513 | case NODE_TYPEDEF: |
| 514 | /* For each declarator, declare type and add type to variant declaration scope */ |
| 515 | ret = ctf_typedef_visit(fd, depth, |
| 516 | variant_declaration->scope, |
| 517 | &iter->u._typedef.declaration_specifier, |
| 518 | &iter->u._typedef.type_declarators); |
| 519 | if (ret) |
| 520 | return ret; |
| 521 | break; |
| 522 | case NODE_TYPEALIAS: |
| 523 | /* Declare type with declarator and add type to variant declaration scope */ |
| 524 | ret = ctf_typealias_visit(fd, depth, |
| 525 | variant_declaration->scope, |
| 526 | iter->u.typealias.target, |
| 527 | iter->u.typealias.alias); |
| 528 | if (ret) |
| 529 | return ret; |
| 530 | break; |
| 531 | case NODE_STRUCT_OR_VARIANT_DECLARATION: |
| 532 | /* Add field to structure declaration */ |
| 533 | ret = ctf_variant_type_declarators_visit(fd, depth, |
| 534 | variant_declaration, |
| 535 | &iter->u.struct_or_variant_declaration.declaration_specifier, |
| 536 | &iter->u.struct_or_variant_declaration.type_declarators); |
| 537 | if (ret) |
| 538 | return ret; |
| 539 | break; |
| 540 | default: |
| 541 | fprintf(stderr, "[error] %s: unexpected node type %d\n", __func__, (int) iter->type); |
| 542 | assert(0); |
| 543 | } |
| 544 | return 0; |
| 545 | } |
| 546 | |
| 547 | static |
| 548 | struct declaration_struct *ctf_declaration_struct_visit(FILE *fd, |
| 549 | int depth, const char *name, struct cds_list_head *declaration_list, |
| 550 | int has_body, struct declaration_scope *declaration_scope) |
| 551 | { |
| 552 | struct declaration *declaration; |
| 553 | struct declaration_struct *struct_declaration; |
| 554 | struct ctf_node *iter; |
| 555 | |
| 556 | /* |
| 557 | * For named struct (without body), lookup in |
| 558 | * declaration scope. Don't take reference on struct |
| 559 | * declaration: ref is only taken upon definition. |
| 560 | */ |
| 561 | if (!has_body) { |
| 562 | assert(name); |
| 563 | struct_declaration = |
| 564 | lookup_struct_declaration(g_quark_from_string(name), |
| 565 | declaration_scope); |
| 566 | return struct_declaration; |
| 567 | } else { |
| 568 | /* For unnamed struct, create type */ |
| 569 | /* For named struct (with body), create type and add to declaration scope */ |
| 570 | if (name) { |
| 571 | if (lookup_struct_declaration(g_quark_from_string(name), |
| 572 | declaration_scope)) { |
| 573 | |
| 574 | fprintf(stderr, "[error] %s: struct %s already declared in scope\n", __func__, name); |
| 575 | return NULL; |
| 576 | } |
| 577 | } |
| 578 | struct_declaration = struct_declaration_new(name, declaration_scope); |
| 579 | cds_list_for_each_entry(iter, declaration_list, siblings) { |
| 580 | ret = ctf_struct_declaration_list_visit(fd, depth + 1, iter, struct_declaration); |
| 581 | if (ret) |
| 582 | goto error; |
| 583 | } |
| 584 | if (name) { |
| 585 | ret = register_struct_declaration(g_quark_from_string(name), |
| 586 | struct_declaration, |
| 587 | declaration_scope); |
| 588 | assert(!ret); |
| 589 | } |
| 590 | return struct_declaration; |
| 591 | } |
| 592 | error: |
| 593 | struct_declaration->p.declaration_free(&struct_declaration->p); |
| 594 | return NULL; |
| 595 | } |
| 596 | |
| 597 | static |
| 598 | struct declaration_variant *ctf_declaration_variant_visit(FILE *fd, |
| 599 | int depth, const char *name, struct cds_list_head *declaration_list, |
| 600 | int has_body, struct declaration_scope *declaration_scope) |
| 601 | { |
| 602 | struct declaration *declaration; |
| 603 | struct declaration_variant *variant_declaration; |
| 604 | struct ctf_node *iter; |
| 605 | |
| 606 | /* |
| 607 | * For named variant (without body), lookup in |
| 608 | * declaration scope. Don't take reference on variant |
| 609 | * declaration: ref is only taken upon definition. |
| 610 | */ |
| 611 | if (!has_body) { |
| 612 | assert(name); |
| 613 | variant_declaration = |
| 614 | lookup_variant_declaration(g_quark_from_string(name), |
| 615 | declaration_scope); |
| 616 | return variant_declaration; |
| 617 | } else { |
| 618 | /* For unnamed variant, create type */ |
| 619 | /* For named variant (with body), create type and add to declaration scope */ |
| 620 | if (name) { |
| 621 | if (lookup_variant_declaration(g_quark_from_string(name), |
| 622 | declaration_scope)) { |
| 623 | |
| 624 | fprintf(stderr, "[error] %s: variant %s already declared in scope\n", __func__, name); |
| 625 | return NULL; |
| 626 | } |
| 627 | } |
| 628 | variant_declaration = variant_declaration_new(name, declaration_scope); |
| 629 | cds_list_for_each_entry(iter, declaration_list, siblings) { |
| 630 | ret = ctf_variant_declaration_list_visit(fd, depth + 1, iter, variant_declaration); |
| 631 | if (ret) |
| 632 | goto error; |
| 633 | } |
| 634 | if (name) { |
| 635 | ret = register_variant_declaration(g_quark_from_string(name), |
| 636 | variant_declaration, |
| 637 | declaration_scope); |
| 638 | assert(!ret); |
| 639 | } |
| 640 | return variant_declaration; |
| 641 | } |
| 642 | error: |
| 643 | variant_declaration->p.declaration_free(&variant_declaration->p); |
| 644 | return NULL; |
| 645 | } |
| 646 | |
| 647 | static |
| 648 | int ctf_enumerator_list_visit(int fd, int depth, |
| 649 | struct ctf_node *enumerator, |
| 650 | struct declaration_enum *enum_declaration) |
| 651 | { |
| 652 | /* TODO */ |
| 653 | ........ |
| 654 | return 0; |
| 655 | } |
| 656 | |
| 657 | static |
| 658 | struct declaration *ctf_declaration_enum_visit(int fd, int depth, |
| 659 | const char *name, |
| 660 | struct ctf_node *container_type, |
| 661 | struct cds_list_head *enumerator_list, |
| 662 | int has_body) |
| 663 | { |
| 664 | struct declaration *declaration; |
| 665 | struct declaration_enum *enum_declaration; |
| 666 | struct declaration_integer *integer_declaration; |
| 667 | struct ctf_node *iter; |
| 668 | |
| 669 | /* |
| 670 | * For named enum (without body), lookup in |
| 671 | * declaration scope. Don't take reference on enum |
| 672 | * declaration: ref is only taken upon definition. |
| 673 | */ |
| 674 | if (!has_body) { |
| 675 | assert(name); |
| 676 | enum_declaration = |
| 677 | lookup_enum_declaration(g_quark_from_string(name), |
| 678 | declaration_scope); |
| 679 | return enum_declaration; |
| 680 | } else { |
| 681 | /* For unnamed enum, create type */ |
| 682 | /* For named enum (with body), create type and add to declaration scope */ |
| 683 | if (name) { |
| 684 | if (lookup_enum_declaration(g_quark_from_string(name), |
| 685 | declaration_scope)) { |
| 686 | |
| 687 | fprintf(stderr, "[error] %s: enum %s already declared in scope\n", __func__, name); |
| 688 | return NULL; |
| 689 | } |
| 690 | } |
| 691 | |
| 692 | /* TODO CHECK Enumerations need to have their size/type specifier (< >). */ |
| 693 | integer_declaration = integer_declaration_new(); /* TODO ... */ |
| 694 | ..... |
| 695 | enum_declaration = enum_declaration_new(name, integer_declaration); |
| 696 | declaration_unref(&integer_declaration->p); /* leave ref to enum */ |
| 697 | cds_list_for_each_entry(iter, enumerator_list, siblings) { |
| 698 | ret = ctf_enumerator_list_visit(fd, depth + 1, iter, enum_declaration); |
| 699 | if (ret) |
| 700 | goto error; |
| 701 | } |
| 702 | if (name) { |
| 703 | ret = register_enum_declaration(g_quark_from_string(name), |
| 704 | enum_declaration, |
| 705 | declaration_scope); |
| 706 | assert(!ret); |
| 707 | } |
| 708 | return enum_declaration; |
| 709 | } |
| 710 | error: |
| 711 | enum_declaration->p.declaration_free(&enum_declaration->p); |
| 712 | return NULL; |
| 713 | } |
| 714 | |
| 715 | static |
| 716 | struct declaration *ctf_declaration_type_specifier_visit(int fd, int depth, |
| 717 | struct cds_list_head *declaration_specifier, |
| 718 | struct declaration_scope *declaration_scope) |
| 719 | { |
| 720 | GString *str; |
| 721 | struct declaration *declaration; |
| 722 | const char *str_c; |
| 723 | |
| 724 | str = g_string_new(); |
| 725 | ret = visit_declaration_specifier(declaration_specifier, str); |
| 726 | if (ret) |
| 727 | return NULL; |
| 728 | str_c = g_string_free(str, FALSE); |
| 729 | id_q = g_quark_from_string(str_c); |
| 730 | g_free(str_c); |
| 731 | declaration = lookup_declaration(id_q, declaration_scope); |
| 732 | return declaration; |
| 733 | } |
| 734 | |
| 735 | /* |
| 736 | * Returns 0/1 boolean, or < 0 on error. |
| 737 | */ |
| 738 | static |
| 739 | int get_boolean(int fd, int depth, struct node *unary_expression) |
| 740 | { |
| 741 | if (unary_expression->type != NODE_UNARY_EXPRESSION) { |
| 742 | fprintf(stderr, "[error] %s: expecting unary expression\n", |
| 743 | __func__); |
| 744 | return -EINVAL; |
| 745 | } |
| 746 | switch (unary_expression->u.unary_expression.type) { |
| 747 | case UNARY_UNSIGNED_CONSTANT: |
| 748 | if (unary_expression->u.unary_expression.u.unsigned_constant == 0) |
| 749 | return 0; |
| 750 | else |
| 751 | return 1; |
| 752 | case UNARY_SIGNED_CONSTANT: |
| 753 | if (unary_expression->u.unary_expression.u.signed_constant == 0) |
| 754 | return 0; |
| 755 | else |
| 756 | return 1; |
| 757 | case UNARY_STRING: |
| 758 | if (!strcmp(unary_expression->u.unary_expression.u.string, "true")) |
| 759 | return 1; |
| 760 | else if (!strcmp(unary_expression->u.unary_expression.u.string, "TRUE")) |
| 761 | return 1; |
| 762 | else if (!strcmp(unary_expression->u.unary_expression.u.string, "false")) |
| 763 | return 0; |
| 764 | else if (!strcmp(unary_expression->u.unary_expression.u.string, "FALSE")) |
| 765 | return 0; |
| 766 | else { |
| 767 | fprintf(stderr, "[error] %s: unexpected string \"%s\"\n", |
| 768 | __func__, unary_expression->u.unary_expression.u.string); |
| 769 | return -EINVAL; |
| 770 | } |
| 771 | break; |
| 772 | default: |
| 773 | fprintf(stderr, "[error] %s: unexpected unary expression type\n", |
| 774 | __func__); |
| 775 | return -EINVAL; |
| 776 | } |
| 777 | |
| 778 | } |
| 779 | |
| 780 | static |
| 781 | int get_byte_order(int fd, int depth, struct node *unary_expression) |
| 782 | { |
| 783 | int byte_order; |
| 784 | |
| 785 | if (unary_expression->u.unary_expression.type != UNARY_STRING) { |
| 786 | fprintf(stderr, "[error] %s: byte_order: expecting string\n", |
| 787 | __func__); |
| 788 | return -EINVAL; |
| 789 | } |
| 790 | if (!strcmp(unary_expression->u.unary_expression.u.string, "native")) |
| 791 | byte_order = trace->byte_order; |
| 792 | else if (!strcmp(unary_expression->u.unary_expression.u.string, "network")) |
| 793 | byte_order = BIG_ENDIAN; |
| 794 | else if (!strcmp(unary_expression->u.unary_expression.u.string, "be")) |
| 795 | byte_order = BIG_ENDIAN; |
| 796 | else if (!strcmp(unary_expression->u.unary_expression.u.string, "le")) |
| 797 | byte_order = LITTLE_ENDIAN; |
| 798 | else { |
| 799 | fprintf(stderr, "[error] %s: unexpected string \"%s\". Should be \"native\", \"network\", \"be\" or \"le\".\n", |
| 800 | __func__, right->u.unary_expression.u.string); |
| 801 | return -EINVAL; |
| 802 | } |
| 803 | return byte_order; |
| 804 | } |
| 805 | |
| 806 | static |
| 807 | struct declaration *ctf_declaration_integer_visit(int fd, int depth, |
| 808 | struct cds_list_head *expressions, |
| 809 | struct ctf_trace *trace) |
| 810 | { |
| 811 | struct node *expression; |
| 812 | uint64_t alignment, size; |
| 813 | int byte_order = trace->byte_order; |
| 814 | int signedness = 0; |
| 815 | int has_alignment = 0, has_size = 0; |
| 816 | struct declaration_integer *integer_declaration; |
| 817 | |
| 818 | cds_list_for_each_entry(expression, expressions, siblings) { |
| 819 | struct node *left, *right; |
| 820 | |
| 821 | left = expression->u.ctf_expression.left; |
| 822 | right = expression->u.ctf_expression.right; |
| 823 | assert(left->u.unary_expression.type == UNARY_STRING); |
| 824 | if (!strcmp(left->u.unary_expression.u.string, "signed")) { |
| 825 | signedness = get_boolean(fd, depth, right); |
| 826 | if (signedness < 0) |
| 827 | return NULL; |
| 828 | } else if (!strcmp(left->u.unary_expression.u.string, "byte_order")) { |
| 829 | byte_order = get_byte_order(fd, depth, right); |
| 830 | if (byte_order < 0) |
| 831 | return NULL; |
| 832 | } else if (!strcmp(left->u.unary_expression.u.string, "size")) { |
| 833 | if (right->u.unary_expression.type != UNARY_UNSIGNED_CONSTANT) { |
| 834 | fprintf(stderr, "[error] %s: size: expecting unsigned constant\n", |
| 835 | __func__); |
| 836 | return NULL; |
| 837 | } |
| 838 | size = right->u.unary_expression.u.unsigned_constant; |
| 839 | has_size = 1; |
| 840 | } else if (!strcmp(left->u.unary_expression.u.string, "align")) { |
| 841 | if (right->u.unary_expression.type != UNARY_UNSIGNED_CONSTANT) { |
| 842 | fprintf(stderr, "[error] %s: align: expecting unsigned constant\n", |
| 843 | __func__); |
| 844 | return NULL; |
| 845 | } |
| 846 | alignment = right->u.unary_expression.u.unsigned_constant; |
| 847 | has_alignment = 1; |
| 848 | } else { |
| 849 | fprintf(stderr, "[error] %s: unknown attribute name %s\n", |
| 850 | __func__, left->u.unary_expression.u.string); |
| 851 | return NULL; |
| 852 | } |
| 853 | } |
| 854 | if (!has_size) { |
| 855 | fprintf(stderr, "[error] %s: missing size attribute\n", __func__); |
| 856 | return NULL; |
| 857 | } |
| 858 | if (!has_alignment) { |
| 859 | if (size % CHAR_BIT) { |
| 860 | /* bit-packed alignment */ |
| 861 | alignment = 1; |
| 862 | } else { |
| 863 | /* byte-packed alignment */ |
| 864 | alignment = CHAR_BIT; |
| 865 | } |
| 866 | } |
| 867 | integer_declaration = integer_declaration_new(size, |
| 868 | byte_order, signedness, alignment); |
| 869 | return &integer_declaration->p; |
| 870 | } |
| 871 | |
| 872 | static |
| 873 | struct declaration *ctf_declaration_floating_point_visit(int fd, int depth, |
| 874 | struct cds_list_head *expressions, |
| 875 | struct ctf_trace *trace) |
| 876 | { |
| 877 | struct node *expression; |
| 878 | uint64_t alignment, exp_dig, mant_dig, byte_order = trace->byte_order; |
| 879 | int has_alignment = 0, has_exp_dig = 0, has_mant_dig = 0; |
| 880 | struct declaration_float *float_declaration; |
| 881 | |
| 882 | cds_list_for_each_entry(expression, expressions, siblings) { |
| 883 | struct node *left, *right; |
| 884 | |
| 885 | left = expression->u.ctf_expression.left; |
| 886 | right = expression->u.ctf_expression.right; |
| 887 | assert(left->u.unary_expression.type == UNARY_STRING); |
| 888 | if (!strcmp(left->u.unary_expression.u.string, "byte_order")) { |
| 889 | byte_order = get_byte_order(fd, depth, right); |
| 890 | if (byte_order < 0) |
| 891 | return NULL; |
| 892 | } else if (!strcmp(left->u.unary_expression.u.string, "exp_dig")) { |
| 893 | if (right->u.unary_expression.type != UNARY_UNSIGNED_CONSTANT) { |
| 894 | fprintf(stderr, "[error] %s: exp_dig: expecting unsigned constant\n", |
| 895 | __func__); |
| 896 | return NULL; |
| 897 | } |
| 898 | exp_dig = right->u.unary_expression.u.unsigned_constant; |
| 899 | has_exp_dig = 1; |
| 900 | } else if (!strcmp(left->u.unary_expression.u.string, "mant_dig")) { |
| 901 | if (right->u.unary_expression.type != UNARY_UNSIGNED_CONSTANT) { |
| 902 | fprintf(stderr, "[error] %s: mant_dig: expecting unsigned constant\n", |
| 903 | __func__); |
| 904 | return NULL; |
| 905 | } |
| 906 | mant_dig = right->u.unary_expression.u.unsigned_constant; |
| 907 | has_mant_dig = 1; |
| 908 | } else if (!strcmp(left->u.unary_expression.u.string, "align")) { |
| 909 | if (right->u.unary_expression.type != UNARY_UNSIGNED_CONSTANT) { |
| 910 | fprintf(stderr, "[error] %s: align: expecting unsigned constant\n", |
| 911 | __func__); |
| 912 | return NULL; |
| 913 | } |
| 914 | alignment = right->u.unary_expression.u.unsigned_constant; |
| 915 | has_alignment = 1; |
| 916 | } else { |
| 917 | fprintf(stderr, "[error] %s: unknown attribute name %s\n", |
| 918 | __func__, left->u.unary_expression.u.string); |
| 919 | return NULL; |
| 920 | } |
| 921 | } |
| 922 | if (!has_mant_dig) { |
| 923 | fprintf(stderr, "[error] %s: missing mant_dig attribute\n", __func__); |
| 924 | return NULL; |
| 925 | } |
| 926 | if (!has_exp_dig) { |
| 927 | fprintf(stderr, "[error] %s: missing exp_dig attribute\n", __func__); |
| 928 | return NULL; |
| 929 | } |
| 930 | if (!has_alignment) { |
| 931 | if ((mant_dig + exp_dig) % CHAR_BIT) { |
| 932 | /* bit-packed alignment */ |
| 933 | alignment = 1; |
| 934 | } else { |
| 935 | /* byte-packed alignment */ |
| 936 | alignment = CHAR_BIT; |
| 937 | } |
| 938 | } |
| 939 | float_declaration = float_declaration_new(mant_dig, exp_dig, |
| 940 | byte_order, alignment); |
| 941 | return &float_declaration->p; |
| 942 | } |
| 943 | |
| 944 | static |
| 945 | struct declaration *ctf_declaration_string_visit(int fd, int depth, |
| 946 | struct cds_list_head *expressions, |
| 947 | struct ctf_trace *trace) |
| 948 | { |
| 949 | struct node *expression; |
| 950 | const char *encoding_c = NULL; |
| 951 | enum ctf_string_encoding encoding = CTF_STRING_UTF8; |
| 952 | struct declaration_string *string_declaration; |
| 953 | |
| 954 | cds_list_for_each_entry(expression, expressions, siblings) { |
| 955 | struct node *left, *right; |
| 956 | |
| 957 | left = expression->u.ctf_expression.left; |
| 958 | right = expression->u.ctf_expression.right; |
| 959 | assert(left->u.unary_expression.type == UNARY_STRING); |
| 960 | if (!strcmp(left->u.unary_expression.u.string, "encoding")) { |
| 961 | if (right->u.unary_expression.type != UNARY_UNSIGNED_STRING) { |
| 962 | fprintf(stderr, "[error] %s: encoding: expecting string\n", |
| 963 | __func__); |
| 964 | return NULL; |
| 965 | } |
| 966 | encoding_c = right->u.unary_expression.u.string; |
| 967 | } else { |
| 968 | fprintf(stderr, "[error] %s: unknown attribute name %s\n", |
| 969 | __func__, left->u.unary_expression.u.string); |
| 970 | return NULL; |
| 971 | } |
| 972 | } |
| 973 | if (encoding_c && !strcmp(encoding_c, "ASCII")) |
| 974 | encoding = CTF_STRING_ASCII; |
| 975 | string_declaration = string_declaration_new(encoding); |
| 976 | return &string_declaration->p; |
| 977 | } |
| 978 | |
| 979 | |
| 980 | /* |
| 981 | * Also add named variant, struct or enum to the current declaration scope. |
| 982 | */ |
| 983 | static |
| 984 | struct declaration *ctf_declaration_specifier_visit(FILE *fd, |
| 985 | int depth, struct cds_list_head *head, |
| 986 | struct declaration_scope *declaration_scope, |
| 987 | struct ctf_trace *trace) |
| 988 | { |
| 989 | struct declaration *declaration; |
| 990 | struct node *first; |
| 991 | |
| 992 | first = _cds_list_first_entry(head, struct node, siblings); |
| 993 | |
| 994 | switch (first->type) { |
| 995 | case NODE_STRUCT: |
| 996 | return ctf_declaration_struct_visit(fd, depth, |
| 997 | first->u._struct.name, |
| 998 | &first->u._struct.declaration_list, |
| 999 | first->u._struct.has_body, |
| 1000 | declaration_scope, |
| 1001 | trace); |
| 1002 | case NODE_VARIANT: |
| 1003 | return ctf_declaration_variant_visit(fd, depth, |
| 1004 | first->u.variant.name, |
| 1005 | &first->u.variant.declaration_list, |
| 1006 | first->u.variant.has_body, |
| 1007 | declaration_scope, |
| 1008 | trace); |
| 1009 | case NODE_ENUM: |
| 1010 | return ctf_declaration_enum_visit(fd, depth, |
| 1011 | first->u._enum.enum_id, |
| 1012 | first->u._enum.container_type, |
| 1013 | &first->u._enum.enumerator_list, |
| 1014 | first->u._enum.has_body, |
| 1015 | trace); |
| 1016 | case NODE_INTEGER: |
| 1017 | return ctf_declaration_integer_visit(fd, depth, |
| 1018 | &first->u.integer.expressions, trace); |
| 1019 | case NODE_FLOATING_POINT: |
| 1020 | return ctf_declaration_floating_point_visit(fd, depth, |
| 1021 | &first->u.floating_point.expressions, trace); |
| 1022 | case NODE_STRING: |
| 1023 | return ctf_declaration_string_visit(fd, depth, |
| 1024 | &first->u.string.expressions, trace); |
| 1025 | case NODE_TYPE_SPECIFIER: |
| 1026 | return ctf_declaration_type_specifier_visit(fd, depth, |
| 1027 | head, declaration_scope, trace); |
| 1028 | } |
| 1029 | } |
| 1030 | |
| 1031 | static |
| 1032 | int ctf_event_declaration_visit(FILE *fd, int depth, struct ctf_node *node, struct ctf_event *event, struct ctf_trace *trace) |
| 1033 | { |
| 1034 | int ret = 0; |
| 1035 | |
| 1036 | switch (node->type) { |
| 1037 | case NODE_TYPEDEF: |
| 1038 | ret = ctf_typedef_visit(fd, depth + 1, |
| 1039 | &node->u._typedef.declaration_specifier, |
| 1040 | &node->u._typedef.type_declarators, |
| 1041 | event->declaration_scope); |
| 1042 | if (ret) |
| 1043 | return ret; |
| 1044 | break; |
| 1045 | case NODE_TYPEALIAS: |
| 1046 | ret = ctf_typealias_visit(fd, depth + 1, |
| 1047 | &node->u.typealias.target, &node->u.typealias.alias |
| 1048 | event->declaration_scope); |
| 1049 | if (ret) |
| 1050 | return ret; |
| 1051 | break; |
| 1052 | case NODE_CTF_EXPRESSION: |
| 1053 | { |
| 1054 | char *left; |
| 1055 | |
| 1056 | left = concatenate_unary_strings(&node->u.ctf_expression.left); |
| 1057 | if (!strcmp(left, "name")) { |
| 1058 | char *right; |
| 1059 | |
| 1060 | if (CTF_EVENT_FIELD_IS_SET(event, name)) |
| 1061 | return -EPERM; |
| 1062 | right = concatenate_unary_strings(&node->u.ctf_expression.right); |
| 1063 | if (!right) { |
| 1064 | fprintf(stderr, "[error] %s: unexpected unary expression for event name\n", __func__); |
| 1065 | return -EINVAL; |
| 1066 | } |
| 1067 | event->name = g_quark_from_string(right); |
| 1068 | g_free(right); |
| 1069 | CTF_EVENT_SET_FIELD(event, name); |
| 1070 | } else if (!strcmp(left, "id")) { |
| 1071 | if (CTF_EVENT_FIELD_IS_SET(event, id)) |
| 1072 | return -EPERM; |
| 1073 | ret = get_unary_unsigned(&node->u.ctf_expression.right, &event->id); |
| 1074 | if (ret) { |
| 1075 | fprintf(stderr, "[error] %s: unexpected unary expression for event id\n", __func__); |
| 1076 | return -EINVAL; |
| 1077 | } |
| 1078 | CTF_EVENT_SET_FIELD(event, id); |
| 1079 | } else if (!strcmp(left, "stream_id")) { |
| 1080 | if (CTF_EVENT_FIELD_IS_SET(event, stream_id)) |
| 1081 | return -EPERM; |
| 1082 | ret = get_unary_unsigned(&node->u.ctf_expression.right, &event->stream_id); |
| 1083 | if (ret) { |
| 1084 | fprintf(stderr, "[error] %s: unexpected unary expression for event stream_id\n", __func__); |
| 1085 | return -EINVAL; |
| 1086 | } |
| 1087 | event->stream = trace_stream_lookup(trace, event->stream_id); |
| 1088 | if (!event->stream) { |
| 1089 | fprintf(stderr, "[error] %s: stream id %" PRIu64 " cannot be found\n", __func__, event->stream_id); |
| 1090 | return -EINVAL; |
| 1091 | } |
| 1092 | CTF_EVENT_SET_FIELD(event, stream_id); |
| 1093 | } else if (!strcmp(left, "context")) { |
| 1094 | struct declaration *declaration; |
| 1095 | |
| 1096 | if (!event->definition_scope) |
| 1097 | return -EPERM; |
| 1098 | declaration = ctf_declaration_specifier_visit(fd, depth, |
| 1099 | &node->u.ctf_expression.right, |
| 1100 | event->declaration_scope, trace); |
| 1101 | if (!declaration) |
| 1102 | return -EPERM; |
| 1103 | if (declaration->type->id != CTF_TYPE_STRUCT) |
| 1104 | return -EPERM; |
| 1105 | event->context_decl = container_of(declaration, struct declaration_struct, p); |
| 1106 | } else if (!strcmp(left, "fields")) { |
| 1107 | struct declaration *declaration; |
| 1108 | |
| 1109 | if (!event->definition_scope) |
| 1110 | return -EPERM; |
| 1111 | declaration = ctf_declaration_specifier_visit(fd, depth, |
| 1112 | &node->u.ctf_expression.right, |
| 1113 | event->declaration_scope, trace); |
| 1114 | if (!declaration) |
| 1115 | return -EPERM; |
| 1116 | if (declaration->type->id != CTF_TYPE_STRUCT) |
| 1117 | return -EPERM; |
| 1118 | event->fields_decl = container_of(declaration, struct declaration_struct, p); |
| 1119 | } |
| 1120 | g_free(left); |
| 1121 | break; |
| 1122 | } |
| 1123 | default: |
| 1124 | return -EPERM; |
| 1125 | /* TODO: declaration specifier should be added. */ |
| 1126 | } |
| 1127 | |
| 1128 | return 0; |
| 1129 | } |
| 1130 | |
| 1131 | static |
| 1132 | int ctf_event_visit(FILE *fd, int depth, struct ctf_node *node, |
| 1133 | struct declaration_scope *parent_declaration_scope, struct ctf_trace *trace) |
| 1134 | { |
| 1135 | int ret = 0; |
| 1136 | struct ctf_node *iter; |
| 1137 | struct ctf_event *event; |
| 1138 | struct definition_scope *parent_def_scope; |
| 1139 | |
| 1140 | event = g_new0(struct ctf_event, 1); |
| 1141 | event->declaration_scope = new_declaration_scope(parent_declaration_scope); |
| 1142 | cds_list_for_each_entry(iter, &node->u.event.declaration_list, siblings) { |
| 1143 | ret = ctf_event_declaration_visit(fd, depth + 1, iter, event, trace); |
| 1144 | if (ret) |
| 1145 | goto error; |
| 1146 | } |
| 1147 | if (!CTF_EVENT_FIELD_IS_SET(event, name)) { |
| 1148 | ret = -EPERM; |
| 1149 | goto error; |
| 1150 | } |
| 1151 | if (!CTF_EVENT_FIELD_IS_SET(event, id)) { |
| 1152 | ret = -EPERM; |
| 1153 | goto error; |
| 1154 | } |
| 1155 | if (!CTF_EVENT_FIELD_IS_SET(event, stream_id)) { |
| 1156 | ret = -EPERM; |
| 1157 | goto error; |
| 1158 | } |
| 1159 | if (event->stream->events_by_id->len <= event->id) |
| 1160 | g_ptr_array_set_size(event->stream->events_by_id, event->id + 1); |
| 1161 | g_ptr_array_index(event->stream->events_by_id, event->id) = event; |
| 1162 | g_hash_table_insert(event->stream->event_quark_to_id, |
| 1163 | (gpointer)(unsigned long) event->name, |
| 1164 | &event->id); |
| 1165 | parent_def_scope = stream->definition_scope; |
| 1166 | if (event->context_decl) { |
| 1167 | event->context = |
| 1168 | event->context_decl->definition_new(event->context_decl, |
| 1169 | parent_def_scope, 0, 0); |
| 1170 | set_dynamic_definition_scope(&event->context->p, |
| 1171 | event->context->scope, |
| 1172 | "event.context"); |
| 1173 | parent_def_scope = event->context->scope; |
| 1174 | declaration_unref(event->context_decl); |
| 1175 | } |
| 1176 | if (event->fields_decl) { |
| 1177 | event->fields = |
| 1178 | event->fields_decl->definition_new(event->fields_decl, |
| 1179 | parent_def_scope, 0, 0); |
| 1180 | set_dynamic_definition_scope(&event->fields->p, |
| 1181 | event->fields->scope, |
| 1182 | "event.fields"); |
| 1183 | parent_def_scope = event->fields->scope; |
| 1184 | declaration_unref(event->fields_decl); |
| 1185 | } |
| 1186 | return 0; |
| 1187 | |
| 1188 | error: |
| 1189 | declaration_unref(event->fields_decl); |
| 1190 | declaration_unref(event->context_decl); |
| 1191 | free_definition_scope(event->definition_scope); |
| 1192 | free_declaration_scope(event->declaration_scope); |
| 1193 | g_free(event); |
| 1194 | return ret; |
| 1195 | } |
| 1196 | |
| 1197 | |
| 1198 | static |
| 1199 | int ctf_stream_declaration_visit(FILE *fd, int depth, struct ctf_node *node, struct ctf_stream *stream, struct ctf_trace *trace) |
| 1200 | { |
| 1201 | int ret = 0; |
| 1202 | |
| 1203 | switch (node->type) { |
| 1204 | case NODE_TYPEDEF: |
| 1205 | ret = ctf_typedef_visit(fd, depth + 1, |
| 1206 | &node->u._typedef.declaration_specifier, |
| 1207 | &node->u._typedef.type_declarators, |
| 1208 | stream->declaration_scope); |
| 1209 | if (ret) |
| 1210 | return ret; |
| 1211 | break; |
| 1212 | case NODE_TYPEALIAS: |
| 1213 | ret = ctf_typealias_visit(fd, depth + 1, |
| 1214 | &node->u.typealias.target, &node->u.typealias.alias |
| 1215 | stream->declaration_scope); |
| 1216 | if (ret) |
| 1217 | return ret; |
| 1218 | break; |
| 1219 | case NODE_CTF_EXPRESSION: |
| 1220 | { |
| 1221 | char *left; |
| 1222 | |
| 1223 | left = concatenate_unary_strings(&node->u.ctf_expression.left); |
| 1224 | if (!strcmp(left, "stream_id")) { |
| 1225 | if (CTF_EVENT_FIELD_IS_SET(event, stream_id)) |
| 1226 | return -EPERM; |
| 1227 | ret = get_unary_unsigned(&node->u.ctf_expression.right, &event->stream_id); |
| 1228 | if (ret) { |
| 1229 | fprintf(stderr, "[error] %s: unexpected unary expression for event stream_id\n", __func__); |
| 1230 | return -EINVAL; |
| 1231 | } |
| 1232 | CTF_EVENT_SET_FIELD(event, stream_id); |
| 1233 | } else if (!strcmp(left, "event.header")) { |
| 1234 | struct declaration *declaration; |
| 1235 | |
| 1236 | declaration = ctf_declaration_specifier_visit(fd, depth, |
| 1237 | &node->u.ctf_expression.right, |
| 1238 | stream->declaration_scope, stream->definition_scope, trace); |
| 1239 | if (!declaration) |
| 1240 | return -EPERM; |
| 1241 | if (declaration->type->id != CTF_TYPE_STRUCT) |
| 1242 | return -EPERM; |
| 1243 | stream->event_header_decl = container_of(declaration, struct declaration_struct, p); |
| 1244 | } else if (!strcmp(left, "event.context")) { |
| 1245 | struct declaration *declaration; |
| 1246 | |
| 1247 | declaration = ctf_declaration_specifier_visit(fd, depth, |
| 1248 | &node->u.ctf_expression.right, |
| 1249 | stream->declaration_scope, trace); |
| 1250 | if (!declaration) |
| 1251 | return -EPERM; |
| 1252 | if (declaration->type->id != CTF_TYPE_STRUCT) |
| 1253 | return -EPERM; |
| 1254 | stream->event_context_decl = container_of(declaration, struct declaration_struct, p); |
| 1255 | } else if (!strcmp(left, "packet.context")) { |
| 1256 | struct declaration *declaration; |
| 1257 | |
| 1258 | declaration = ctf_declaration_specifier_visit(fd, depth, |
| 1259 | &node->u.ctf_expression.right, |
| 1260 | stream->declaration_scope, trace); |
| 1261 | if (!declaration) |
| 1262 | return -EPERM; |
| 1263 | if (declaration->type->id != CTF_TYPE_STRUCT) |
| 1264 | return -EPERM; |
| 1265 | stream->packet_context_decl = container_of(declaration, struct declaration_struct, p); |
| 1266 | } |
| 1267 | g_free(left); |
| 1268 | break; |
| 1269 | } |
| 1270 | default: |
| 1271 | return -EPERM; |
| 1272 | /* TODO: declaration specifier should be added. */ |
| 1273 | } |
| 1274 | |
| 1275 | return 0; |
| 1276 | } |
| 1277 | |
| 1278 | static |
| 1279 | int ctf_stream_visit(FILE *fd, int depth, struct ctf_node *node, |
| 1280 | struct declaration_scope *parent_declaration_scope, struct ctf_trace *trace) |
| 1281 | { |
| 1282 | int ret = 0; |
| 1283 | struct ctf_node *iter; |
| 1284 | struct ctf_stream *stream; |
| 1285 | struct definition_scope *parent_def_scope; |
| 1286 | |
| 1287 | stream = g_new0(struct ctf_stream, 1); |
| 1288 | stream->declaration_scope = new_declaration_scope(parent_declaration_scope); |
| 1289 | stream->events_by_id = g_ptr_array_new(); |
| 1290 | stream->event_quark_to_id = g_hash_table_new(g_int_hash, g_int_equal); |
| 1291 | cds_list_for_each_entry(iter, &node->u.stream.declaration_list, siblings) { |
| 1292 | ret = ctf_stream_declaration_visit(fd, depth + 1, iter, stream, trace); |
| 1293 | if (ret) |
| 1294 | goto error; |
| 1295 | } |
| 1296 | if (!CTF_EVENT_FIELD_IS_SET(stream, stream_id)) { |
| 1297 | ret = -EPERM; |
| 1298 | goto error; |
| 1299 | } |
| 1300 | if (trace->streams->len <= stream->stream_id) |
| 1301 | g_ptr_array_set_size(trace->streams, stream->stream_id + 1); |
| 1302 | g_ptr_array_index(trace->streams, stream->stream_id) = stream; |
| 1303 | |
| 1304 | parent_def_scope = NULL; |
| 1305 | if (stream->packet_context_decl) { |
| 1306 | stream->packet_context = |
| 1307 | stream->packet_context_decl->definition_new(stream->packet_context_decl, |
| 1308 | parent_def_scope, 0, 0); |
| 1309 | set_dynamic_definition_scope(&stream->packet_context->p, |
| 1310 | stream->packet_context->scope, |
| 1311 | "stream.packet.context"); |
| 1312 | parent_def_scope = stream->packet_context->scope; |
| 1313 | declaration_unref(stream->packet_context_decl); |
| 1314 | } |
| 1315 | if (stream->event_header_decl) { |
| 1316 | stream->event_header = |
| 1317 | stream->event_header_decl->definition_new(stream->event_header_decl, |
| 1318 | parent_def_scope, 0, 0); |
| 1319 | set_dynamic_definition_scope(&stream->event_header->p, |
| 1320 | stream->event_header->scope, |
| 1321 | "stream.event.header"); |
| 1322 | parent_def_scope = stream->event_header->scope; |
| 1323 | declaration_unref(stream->event_header_decl); |
| 1324 | } |
| 1325 | if (stream->event_context_decl) { |
| 1326 | stream->event_context = |
| 1327 | stream->event_context_decl->definition_new(stream->event_context_decl, |
| 1328 | parent_def_scope, 0, 0); |
| 1329 | set_dynamic_definition_scope(&stream->event_context->p, |
| 1330 | stream->event_context->scope, |
| 1331 | "stream.event.context"); |
| 1332 | parent_def_scope = stream->event_context->scope; |
| 1333 | declaration_unref(stream->event_context_decl); |
| 1334 | } |
| 1335 | stream->definition_scope = parent_def_scope; |
| 1336 | |
| 1337 | return 0; |
| 1338 | |
| 1339 | error: |
| 1340 | declaration_unref(stream->event_header); |
| 1341 | declaration_unref(stream->event_context); |
| 1342 | declaration_unref(stream->packet_context); |
| 1343 | g_ptr_array_free(stream->events_by_id, TRUE); |
| 1344 | g_hash_table_free(stream->event_quark_to_id); |
| 1345 | free_definition_scope(stream->definition_scope); |
| 1346 | free_declaration_scope(stream->declaration_scope); |
| 1347 | g_free(stream); |
| 1348 | return ret; |
| 1349 | } |
| 1350 | |
| 1351 | static |
| 1352 | int ctf_trace_declaration_visit(FILE *fd, int depth, struct ctf_node *node, struct ctf_trace *trace) |
| 1353 | { |
| 1354 | int ret = 0; |
| 1355 | |
| 1356 | switch (node->type) { |
| 1357 | case NODE_TYPEDEF: |
| 1358 | ret = ctf_typedef_visit(fd, depth + 1, |
| 1359 | &node->u._typedef.declaration_specifier, |
| 1360 | &node->u._typedef.type_declarators, |
| 1361 | trace->declaration_scope); |
| 1362 | if (ret) |
| 1363 | return ret; |
| 1364 | break; |
| 1365 | case NODE_TYPEALIAS: |
| 1366 | ret = ctf_typealias_visit(fd, depth + 1, |
| 1367 | &node->u.typealias.target, &node->u.typealias.alias |
| 1368 | trace->declaration_scope); |
| 1369 | if (ret) |
| 1370 | return ret; |
| 1371 | break; |
| 1372 | case NODE_CTF_EXPRESSION: |
| 1373 | { |
| 1374 | char *left; |
| 1375 | |
| 1376 | left = concatenate_unary_strings(&node->u.ctf_expression.left); |
| 1377 | if (!strcmp(left, "major")) { |
| 1378 | if (CTF_EVENT_FIELD_IS_SET(trace, major)) |
| 1379 | return -EPERM; |
| 1380 | ret = get_unary_unsigned(&node->u.ctf_expression.right, &trace->major); |
| 1381 | if (ret) { |
| 1382 | fprintf(stderr, "[error] %s: unexpected unary expression for trace major number\n", __func__); |
| 1383 | return -EINVAL; |
| 1384 | } |
| 1385 | CTF_EVENT_SET_FIELD(trace, major); |
| 1386 | } else if (!strcmp(left, "minor")) { |
| 1387 | if (CTF_EVENT_FIELD_IS_SET(trace, minor)) |
| 1388 | return -EPERM; |
| 1389 | ret = get_unary_unsigned(&node->u.ctf_expression.right, &trace->minor); |
| 1390 | if (ret) { |
| 1391 | fprintf(stderr, "[error] %s: unexpected unary expression for trace minor number\n", __func__); |
| 1392 | return -EINVAL; |
| 1393 | } |
| 1394 | CTF_EVENT_SET_FIELD(trace, minor); |
| 1395 | } else if (!strcmp(left, "word_size")) { |
| 1396 | if (CTF_EVENT_FIELD_IS_SET(trace, word_size)) |
| 1397 | return -EPERM; |
| 1398 | ret = get_unary_unsigned(&node->u.ctf_expression.right, &trace->word_size); |
| 1399 | if (ret) { |
| 1400 | fprintf(stderr, "[error] %s: unexpected unary expression for trace word_size\n", __func__); |
| 1401 | return -EINVAL; |
| 1402 | } |
| 1403 | CTF_EVENT_SET_FIELD(trace, word_size); |
| 1404 | } else if (!strcmp(left, "uuid")) { |
| 1405 | if (CTF_EVENT_FIELD_IS_SET(trace, uuid)) |
| 1406 | return -EPERM; |
| 1407 | ret = get_unary_uuid(&node->u.ctf_expression.right, &trace->uuid); |
| 1408 | if (ret) { |
| 1409 | fprintf(stderr, "[error] %s: unexpected unary expression for trace uuid\n", __func__); |
| 1410 | return -EINVAL; |
| 1411 | } |
| 1412 | CTF_EVENT_SET_FIELD(trace, uuid); |
| 1413 | } |
| 1414 | g_free(left); |
| 1415 | break; |
| 1416 | } |
| 1417 | default: |
| 1418 | return -EPERM; |
| 1419 | /* TODO: declaration specifier should be added. */ |
| 1420 | } |
| 1421 | |
| 1422 | return 0; |
| 1423 | } |
| 1424 | |
| 1425 | static |
| 1426 | int ctf_trace_visit(FILE *fd, int depth, struct ctf_node *node, struct ctf_trace *trace) |
| 1427 | { |
| 1428 | int ret = 0; |
| 1429 | struct ctf_node *iter; |
| 1430 | |
| 1431 | if (trace->declaration_scope) |
| 1432 | return -EEXIST; |
| 1433 | trace->declaration_scope = new_declaration_scope(trace->root_declaration_scope); |
| 1434 | trace->definition_scope = new_dynamic_definition_scope(trace->root_definition_scope); |
| 1435 | trace->streams = g_ptr_array_new(); |
| 1436 | cds_list_for_each_entry(iter, &node->u.trace.declaration_list, siblings) { |
| 1437 | ret = ctf_trace_declaration_visit(fd, depth + 1, iter, trace); |
| 1438 | if (ret) |
| 1439 | goto error; |
| 1440 | } |
| 1441 | if (!CTF_EVENT_FIELD_IS_SET(trace, major)) { |
| 1442 | ret = -EPERM; |
| 1443 | goto error; |
| 1444 | } |
| 1445 | if (!CTF_EVENT_FIELD_IS_SET(trace, minor)) { |
| 1446 | ret = -EPERM; |
| 1447 | goto error; |
| 1448 | } |
| 1449 | if (!CTF_EVENT_FIELD_IS_SET(trace, uuid)) { |
| 1450 | ret = -EPERM; |
| 1451 | goto error; |
| 1452 | } |
| 1453 | if (!CTF_EVENT_FIELD_IS_SET(trace, word_size)) { |
| 1454 | ret = -EPERM; |
| 1455 | goto error; |
| 1456 | } |
| 1457 | return 0; |
| 1458 | |
| 1459 | error: |
| 1460 | g_ptr_array_free(trace->streams, TRUE); |
| 1461 | free_definition_scope(stream->definition_scope); |
| 1462 | free_declaration_scope(stream->declaration_scope); |
| 1463 | return ret; |
| 1464 | } |
| 1465 | |
| 1466 | int ctf_visitor_construct_metadata(FILE *fd, int depth, struct ctf_node *node, |
| 1467 | struct ctf_trace *trace, int byte_order) |
| 1468 | { |
| 1469 | int ret = 0; |
| 1470 | struct ctf_node *iter; |
| 1471 | |
| 1472 | trace->byte_order = byte_order; |
| 1473 | |
| 1474 | switch (node->type) { |
| 1475 | case NODE_ROOT: |
| 1476 | cds_list_for_each_entry(iter, &node->u.root._typedef, |
| 1477 | siblings) { |
| 1478 | ret = ctf_typedef_visit(fd, depth + 1, |
| 1479 | &iter->u._typedef.declaration_specifier, |
| 1480 | &iter->u._typedef.type_declarators, |
| 1481 | trace->root_declaration_scope); |
| 1482 | if (ret) |
| 1483 | return ret; |
| 1484 | } |
| 1485 | cds_list_for_each_entry(iter, &node->u.root.typealias, |
| 1486 | siblings) { |
| 1487 | ret = ctf_typealias_visit(fd, depth + 1, |
| 1488 | &iter->u.typealias.target, &iter->u.typealias.alias |
| 1489 | trace->root_declaration_scope); |
| 1490 | if (ret) |
| 1491 | return ret; |
| 1492 | } |
| 1493 | cds_list_for_each_entry(iter, &node->u.root.declaration_specifier, siblings) { |
| 1494 | ret = ctf_declaration_specifier_visit(fd, depth, iter, |
| 1495 | trace->root_declaration_scope, trace); |
| 1496 | if (ret) |
| 1497 | return ret; |
| 1498 | } |
| 1499 | cds_list_for_each_entry(iter, &node->u.root.trace, siblings) { |
| 1500 | ret = ctf_trace_visit(fd, depth + 1, iter, trace); |
| 1501 | if (ret) |
| 1502 | return ret; |
| 1503 | } |
| 1504 | cds_list_for_each_entry(iter, &node->u.root.stream, siblings) { |
| 1505 | ret = ctf_stream_visit(fd, depth + 1, iter, |
| 1506 | trace->root_declaration_scope, trace); |
| 1507 | if (ret) |
| 1508 | return ret; |
| 1509 | } |
| 1510 | cds_list_for_each_entry(iter, &node->u.root.event, siblings) { |
| 1511 | ret = ctf_event_visit(fd, depth + 1, iter, |
| 1512 | trace->root_declaration_scope, trace); |
| 1513 | if (ret) |
| 1514 | return ret; |
| 1515 | } |
| 1516 | break; |
| 1517 | case NODE_UNKNOWN: |
| 1518 | default: |
| 1519 | fprintf(stderr, "[error] %s: unknown node type %d\n", __func__, |
| 1520 | (int) node->type); |
| 1521 | return -EINVAL; |
| 1522 | } |
| 1523 | return ret; |
| 1524 | } |