| 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/babeltrace-internal.h> |
| 29 | #include <babeltrace/list.h> |
| 30 | #include <babeltrace/types.h> |
| 31 | #include <babeltrace/ctf/metadata.h> |
| 32 | #include <uuid/uuid.h> |
| 33 | #include "ctf-scanner.h" |
| 34 | #include "ctf-parser.h" |
| 35 | #include "ctf-ast.h" |
| 36 | |
| 37 | #define fprintf_dbg(fd, fmt, args...) fprintf(fd, "%s: " fmt, __func__, ## args) |
| 38 | |
| 39 | #define _cds_list_first_entry(ptr, type, member) \ |
| 40 | cds_list_entry((ptr)->next, type, member) |
| 41 | |
| 42 | static |
| 43 | struct declaration *ctf_type_specifier_list_visit(FILE *fd, |
| 44 | int depth, struct ctf_node *type_specifier_list, |
| 45 | struct declaration_scope *declaration_scope, |
| 46 | struct ctf_trace *trace); |
| 47 | |
| 48 | static |
| 49 | int ctf_stream_visit(FILE *fd, int depth, struct ctf_node *node, |
| 50 | struct declaration_scope *parent_declaration_scope, struct ctf_trace *trace); |
| 51 | |
| 52 | /* |
| 53 | * String returned must be freed by the caller using g_free. |
| 54 | */ |
| 55 | static |
| 56 | char *concatenate_unary_strings(struct cds_list_head *head) |
| 57 | { |
| 58 | struct ctf_node *node; |
| 59 | GString *str; |
| 60 | int i = 0; |
| 61 | |
| 62 | str = g_string_new(""); |
| 63 | cds_list_for_each_entry(node, head, siblings) { |
| 64 | char *src_string; |
| 65 | |
| 66 | assert(node->type == NODE_UNARY_EXPRESSION); |
| 67 | assert(node->u.unary_expression.type == UNARY_STRING); |
| 68 | assert((node->u.unary_expression.link == UNARY_LINK_UNKNOWN) |
| 69 | ^ (i != 0)); |
| 70 | switch (node->u.unary_expression.link) { |
| 71 | case UNARY_DOTLINK: |
| 72 | g_string_append(str, "."); |
| 73 | break; |
| 74 | case UNARY_ARROWLINK: |
| 75 | g_string_append(str, "->"); |
| 76 | break; |
| 77 | case UNARY_DOTDOTDOT: |
| 78 | g_string_append(str, "..."); |
| 79 | break; |
| 80 | default: |
| 81 | break; |
| 82 | } |
| 83 | src_string = node->u.unary_expression.u.string; |
| 84 | g_string_append(str, src_string); |
| 85 | i++; |
| 86 | } |
| 87 | return g_string_free(str, FALSE); |
| 88 | } |
| 89 | |
| 90 | static |
| 91 | GQuark get_map_clock_name_value(struct cds_list_head *head) |
| 92 | { |
| 93 | struct ctf_node *node; |
| 94 | const char *name = NULL; |
| 95 | int i = 0; |
| 96 | |
| 97 | cds_list_for_each_entry(node, head, siblings) { |
| 98 | char *src_string; |
| 99 | |
| 100 | assert(node->type == NODE_UNARY_EXPRESSION); |
| 101 | assert(node->u.unary_expression.type == UNARY_STRING); |
| 102 | assert((node->u.unary_expression.link == UNARY_LINK_UNKNOWN) |
| 103 | ^ (i != 0)); |
| 104 | /* needs to be chained with . */ |
| 105 | switch (node->u.unary_expression.link) { |
| 106 | case UNARY_DOTLINK: |
| 107 | break; |
| 108 | case UNARY_ARROWLINK: |
| 109 | case UNARY_DOTDOTDOT: |
| 110 | return 0; |
| 111 | default: |
| 112 | break; |
| 113 | } |
| 114 | src_string = node->u.unary_expression.u.string; |
| 115 | switch (i) { |
| 116 | case 0: if (strcmp("clock", src_string) != 0) { |
| 117 | return 0; |
| 118 | } |
| 119 | break; |
| 120 | case 1: name = src_string; |
| 121 | break; |
| 122 | case 2: if (strcmp("value", src_string) != 0) { |
| 123 | return 0; |
| 124 | } |
| 125 | break; |
| 126 | default: |
| 127 | return 0; /* extra identifier, unknown */ |
| 128 | } |
| 129 | i++; |
| 130 | } |
| 131 | return g_quark_from_string(name); |
| 132 | } |
| 133 | |
| 134 | static |
| 135 | int get_unary_unsigned(struct cds_list_head *head, uint64_t *value) |
| 136 | { |
| 137 | struct ctf_node *node; |
| 138 | int i = 0; |
| 139 | |
| 140 | cds_list_for_each_entry(node, head, siblings) { |
| 141 | assert(node->type == NODE_UNARY_EXPRESSION); |
| 142 | assert(node->u.unary_expression.type == UNARY_UNSIGNED_CONSTANT); |
| 143 | assert(node->u.unary_expression.link == UNARY_LINK_UNKNOWN); |
| 144 | assert(i == 0); |
| 145 | *value = node->u.unary_expression.u.unsigned_constant; |
| 146 | i++; |
| 147 | } |
| 148 | return 0; |
| 149 | } |
| 150 | |
| 151 | static |
| 152 | int get_unary_signed(struct cds_list_head *head, int64_t *value) |
| 153 | { |
| 154 | struct ctf_node *node; |
| 155 | int i = 0; |
| 156 | |
| 157 | cds_list_for_each_entry(node, head, siblings) { |
| 158 | assert(node->type == NODE_UNARY_EXPRESSION); |
| 159 | assert(node->u.unary_expression.type == UNARY_UNSIGNED_CONSTANT |
| 160 | || node->u.unary_expression.type == UNARY_SIGNED_CONSTANT); |
| 161 | assert(node->u.unary_expression.link == UNARY_LINK_UNKNOWN); |
| 162 | assert(i == 0); |
| 163 | switch (node->u.unary_expression.type) { |
| 164 | case UNARY_UNSIGNED_CONSTANT: |
| 165 | *value = (int64_t) node->u.unary_expression.u.unsigned_constant; |
| 166 | break; |
| 167 | case UNARY_SIGNED_CONSTANT: |
| 168 | *value = node->u.unary_expression.u.signed_constant; |
| 169 | break; |
| 170 | default: |
| 171 | assert(0); |
| 172 | } |
| 173 | i++; |
| 174 | } |
| 175 | return 0; |
| 176 | } |
| 177 | |
| 178 | static |
| 179 | int get_unary_uuid(struct cds_list_head *head, uuid_t *uuid) |
| 180 | { |
| 181 | struct ctf_node *node; |
| 182 | int i = 0; |
| 183 | int ret = -1; |
| 184 | |
| 185 | cds_list_for_each_entry(node, head, siblings) { |
| 186 | const char *src_string; |
| 187 | |
| 188 | assert(node->type == NODE_UNARY_EXPRESSION); |
| 189 | assert(node->u.unary_expression.type == UNARY_STRING); |
| 190 | assert(node->u.unary_expression.link == UNARY_LINK_UNKNOWN); |
| 191 | assert(i == 0); |
| 192 | src_string = node->u.unary_expression.u.string; |
| 193 | ret = uuid_parse(src_string, *uuid); |
| 194 | } |
| 195 | return ret; |
| 196 | } |
| 197 | |
| 198 | static |
| 199 | struct ctf_stream_class *trace_stream_lookup(struct ctf_trace *trace, uint64_t stream_id) |
| 200 | { |
| 201 | if (trace->streams->len <= stream_id) |
| 202 | return NULL; |
| 203 | return g_ptr_array_index(trace->streams, stream_id); |
| 204 | } |
| 205 | |
| 206 | static |
| 207 | struct ctf_clock *trace_clock_lookup(struct ctf_trace *trace, GQuark clock_name) |
| 208 | { |
| 209 | return g_hash_table_lookup(trace->clocks, (gpointer) (unsigned long) clock_name); |
| 210 | } |
| 211 | |
| 212 | static |
| 213 | int visit_type_specifier(FILE *fd, struct ctf_node *type_specifier, GString *str) |
| 214 | { |
| 215 | assert(type_specifier->type == NODE_TYPE_SPECIFIER); |
| 216 | |
| 217 | switch (type_specifier->u.type_specifier.type) { |
| 218 | case TYPESPEC_VOID: |
| 219 | g_string_append(str, "void"); |
| 220 | break; |
| 221 | case TYPESPEC_CHAR: |
| 222 | g_string_append(str, "char"); |
| 223 | break; |
| 224 | case TYPESPEC_SHORT: |
| 225 | g_string_append(str, "short"); |
| 226 | break; |
| 227 | case TYPESPEC_INT: |
| 228 | g_string_append(str, "int"); |
| 229 | break; |
| 230 | case TYPESPEC_LONG: |
| 231 | g_string_append(str, "long"); |
| 232 | break; |
| 233 | case TYPESPEC_FLOAT: |
| 234 | g_string_append(str, "float"); |
| 235 | break; |
| 236 | case TYPESPEC_DOUBLE: |
| 237 | g_string_append(str, "double"); |
| 238 | break; |
| 239 | case TYPESPEC_SIGNED: |
| 240 | g_string_append(str, "signed"); |
| 241 | break; |
| 242 | case TYPESPEC_UNSIGNED: |
| 243 | g_string_append(str, "unsigned"); |
| 244 | break; |
| 245 | case TYPESPEC_BOOL: |
| 246 | g_string_append(str, "bool"); |
| 247 | break; |
| 248 | case TYPESPEC_COMPLEX: |
| 249 | g_string_append(str, "_Complex"); |
| 250 | break; |
| 251 | case TYPESPEC_IMAGINARY: |
| 252 | g_string_append(str, "_Imaginary"); |
| 253 | break; |
| 254 | case TYPESPEC_CONST: |
| 255 | g_string_append(str, "const"); |
| 256 | break; |
| 257 | case TYPESPEC_ID_TYPE: |
| 258 | if (type_specifier->u.type_specifier.id_type) |
| 259 | g_string_append(str, type_specifier->u.type_specifier.id_type); |
| 260 | break; |
| 261 | case TYPESPEC_STRUCT: |
| 262 | { |
| 263 | struct ctf_node *node = type_specifier->u.type_specifier.node; |
| 264 | |
| 265 | if (!node->u._struct.name) { |
| 266 | fprintf(fd, "[error] %s: unexpected empty variant name\n", __func__); |
| 267 | return -EINVAL; |
| 268 | } |
| 269 | g_string_append(str, "struct "); |
| 270 | g_string_append(str, node->u._struct.name); |
| 271 | break; |
| 272 | } |
| 273 | case TYPESPEC_VARIANT: |
| 274 | { |
| 275 | struct ctf_node *node = type_specifier->u.type_specifier.node; |
| 276 | |
| 277 | if (!node->u.variant.name) { |
| 278 | fprintf(fd, "[error] %s: unexpected empty variant name\n", __func__); |
| 279 | return -EINVAL; |
| 280 | } |
| 281 | g_string_append(str, "variant "); |
| 282 | g_string_append(str, node->u.variant.name); |
| 283 | break; |
| 284 | } |
| 285 | case TYPESPEC_ENUM: |
| 286 | { |
| 287 | struct ctf_node *node = type_specifier->u.type_specifier.node; |
| 288 | |
| 289 | if (!node->u._enum.enum_id) { |
| 290 | fprintf(fd, "[error] %s: unexpected empty enum ID\n", __func__); |
| 291 | return -EINVAL; |
| 292 | } |
| 293 | g_string_append(str, "enum "); |
| 294 | g_string_append(str, node->u._enum.enum_id); |
| 295 | break; |
| 296 | } |
| 297 | case TYPESPEC_FLOATING_POINT: |
| 298 | case TYPESPEC_INTEGER: |
| 299 | case TYPESPEC_STRING: |
| 300 | default: |
| 301 | fprintf(fd, "[error] %s: unknown specifier\n", __func__); |
| 302 | return -EINVAL; |
| 303 | } |
| 304 | return 0; |
| 305 | } |
| 306 | |
| 307 | static |
| 308 | int visit_type_specifier_list(FILE *fd, struct ctf_node *type_specifier_list, GString *str) |
| 309 | { |
| 310 | struct ctf_node *iter; |
| 311 | int alias_item_nr = 0; |
| 312 | int ret; |
| 313 | |
| 314 | cds_list_for_each_entry(iter, &type_specifier_list->u.type_specifier_list.head, siblings) { |
| 315 | if (alias_item_nr != 0) |
| 316 | g_string_append(str, " "); |
| 317 | alias_item_nr++; |
| 318 | ret = visit_type_specifier(fd, iter, str); |
| 319 | if (ret) |
| 320 | return ret; |
| 321 | } |
| 322 | return 0; |
| 323 | } |
| 324 | |
| 325 | static |
| 326 | GQuark create_typealias_identifier(FILE *fd, int depth, |
| 327 | struct ctf_node *type_specifier_list, |
| 328 | struct ctf_node *node_type_declarator) |
| 329 | { |
| 330 | struct ctf_node *iter; |
| 331 | GString *str; |
| 332 | char *str_c; |
| 333 | GQuark alias_q; |
| 334 | int ret; |
| 335 | |
| 336 | str = g_string_new(""); |
| 337 | ret = visit_type_specifier_list(fd, type_specifier_list, str); |
| 338 | if (ret) { |
| 339 | g_string_free(str, TRUE); |
| 340 | return 0; |
| 341 | } |
| 342 | cds_list_for_each_entry(iter, &node_type_declarator->u.type_declarator.pointers, siblings) { |
| 343 | g_string_append(str, " *"); |
| 344 | if (iter->u.pointer.const_qualifier) |
| 345 | g_string_append(str, " const"); |
| 346 | } |
| 347 | str_c = g_string_free(str, FALSE); |
| 348 | alias_q = g_quark_from_string(str_c); |
| 349 | g_free(str_c); |
| 350 | return alias_q; |
| 351 | } |
| 352 | |
| 353 | static |
| 354 | struct declaration *ctf_type_declarator_visit(FILE *fd, int depth, |
| 355 | struct ctf_node *type_specifier_list, |
| 356 | GQuark *field_name, |
| 357 | struct ctf_node *node_type_declarator, |
| 358 | struct declaration_scope *declaration_scope, |
| 359 | struct declaration *nested_declaration, |
| 360 | struct ctf_trace *trace) |
| 361 | { |
| 362 | /* |
| 363 | * Visit type declarator by first taking care of sequence/array |
| 364 | * (recursively). Then, when we get to the identifier, take care |
| 365 | * of pointers. |
| 366 | */ |
| 367 | |
| 368 | if (node_type_declarator) { |
| 369 | assert(node_type_declarator->u.type_declarator.type != TYPEDEC_UNKNOWN); |
| 370 | |
| 371 | /* TODO: gcc bitfields not supported yet. */ |
| 372 | if (node_type_declarator->u.type_declarator.bitfield_len != NULL) { |
| 373 | fprintf(fd, "[error] %s: gcc bitfields are not supported yet.\n", __func__); |
| 374 | return NULL; |
| 375 | } |
| 376 | } |
| 377 | |
| 378 | if (!nested_declaration) { |
| 379 | if (node_type_declarator && !cds_list_empty(&node_type_declarator->u.type_declarator.pointers)) { |
| 380 | GQuark alias_q; |
| 381 | |
| 382 | /* |
| 383 | * If we have a pointer declarator, it _has_ to be present in |
| 384 | * the typealiases (else fail). |
| 385 | */ |
| 386 | alias_q = create_typealias_identifier(fd, depth, |
| 387 | type_specifier_list, node_type_declarator); |
| 388 | nested_declaration = lookup_declaration(alias_q, declaration_scope); |
| 389 | if (!nested_declaration) { |
| 390 | fprintf(fd, "[error] %s: cannot find typealias \"%s\".\n", __func__, g_quark_to_string(alias_q)); |
| 391 | return NULL; |
| 392 | } |
| 393 | if (nested_declaration->id == CTF_TYPE_INTEGER) { |
| 394 | struct declaration_integer *integer_declaration = |
| 395 | container_of(nested_declaration, struct declaration_integer, p); |
| 396 | /* For base to 16 for pointers (expected pretty-print) */ |
| 397 | if (!integer_declaration->base) { |
| 398 | /* |
| 399 | * We need to do a copy of the |
| 400 | * integer declaration to modify it. There could be other references to |
| 401 | * it. |
| 402 | */ |
| 403 | integer_declaration = integer_declaration_new(integer_declaration->len, |
| 404 | integer_declaration->byte_order, integer_declaration->signedness, |
| 405 | integer_declaration->p.alignment, 16, integer_declaration->encoding, |
| 406 | integer_declaration->clock); |
| 407 | nested_declaration = &integer_declaration->p; |
| 408 | } |
| 409 | } |
| 410 | } else { |
| 411 | nested_declaration = ctf_type_specifier_list_visit(fd, depth, |
| 412 | type_specifier_list, declaration_scope, trace); |
| 413 | } |
| 414 | } |
| 415 | |
| 416 | if (!node_type_declarator) |
| 417 | return nested_declaration; |
| 418 | |
| 419 | if (node_type_declarator->u.type_declarator.type == TYPEDEC_ID) { |
| 420 | if (node_type_declarator->u.type_declarator.u.id) |
| 421 | *field_name = g_quark_from_string(node_type_declarator->u.type_declarator.u.id); |
| 422 | else |
| 423 | *field_name = 0; |
| 424 | return nested_declaration; |
| 425 | } else { |
| 426 | struct declaration *declaration; |
| 427 | struct ctf_node *first; |
| 428 | |
| 429 | /* TYPEDEC_NESTED */ |
| 430 | |
| 431 | if (!nested_declaration) { |
| 432 | fprintf(fd, "[error] %s: nested type is unknown.\n", __func__); |
| 433 | return NULL; |
| 434 | } |
| 435 | |
| 436 | /* create array/sequence, pass nested_declaration as child. */ |
| 437 | if (cds_list_empty(&node_type_declarator->u.type_declarator.u.nested.length)) { |
| 438 | fprintf(fd, "[error] %s: expecting length field reference or value.\n", __func__); |
| 439 | return NULL; |
| 440 | } |
| 441 | first = _cds_list_first_entry(&node_type_declarator->u.type_declarator.u.nested.length, |
| 442 | struct ctf_node, siblings); |
| 443 | assert(first->type == NODE_UNARY_EXPRESSION); |
| 444 | |
| 445 | switch (first->u.unary_expression.type) { |
| 446 | case UNARY_UNSIGNED_CONSTANT: |
| 447 | { |
| 448 | struct declaration_array *array_declaration; |
| 449 | size_t len; |
| 450 | |
| 451 | len = first->u.unary_expression.u.unsigned_constant; |
| 452 | array_declaration = array_declaration_new(len, nested_declaration, |
| 453 | declaration_scope); |
| 454 | |
| 455 | if (!array_declaration) { |
| 456 | fprintf(fd, "[error] %s: cannot create array declaration.\n", __func__); |
| 457 | return NULL; |
| 458 | } |
| 459 | declaration = &array_declaration->p; |
| 460 | break; |
| 461 | } |
| 462 | case UNARY_STRING: |
| 463 | { |
| 464 | /* Lookup unsigned integer definition, create sequence */ |
| 465 | char *length_name = concatenate_unary_strings(&node_type_declarator->u.type_declarator.u.nested.length); |
| 466 | struct declaration_sequence *sequence_declaration; |
| 467 | |
| 468 | sequence_declaration = sequence_declaration_new(length_name, nested_declaration, declaration_scope); |
| 469 | if (!sequence_declaration) { |
| 470 | fprintf(fd, "[error] %s: cannot create sequence declaration.\n", __func__); |
| 471 | return NULL; |
| 472 | } |
| 473 | declaration = &sequence_declaration->p; |
| 474 | break; |
| 475 | } |
| 476 | default: |
| 477 | assert(0); |
| 478 | } |
| 479 | |
| 480 | /* Pass it as content of outer container */ |
| 481 | declaration = ctf_type_declarator_visit(fd, depth, |
| 482 | type_specifier_list, field_name, |
| 483 | node_type_declarator->u.type_declarator.u.nested.type_declarator, |
| 484 | declaration_scope, declaration, trace); |
| 485 | return declaration; |
| 486 | } |
| 487 | } |
| 488 | |
| 489 | static |
| 490 | int ctf_struct_type_declarators_visit(FILE *fd, int depth, |
| 491 | struct declaration_struct *struct_declaration, |
| 492 | struct ctf_node *type_specifier_list, |
| 493 | struct cds_list_head *type_declarators, |
| 494 | struct declaration_scope *declaration_scope, |
| 495 | struct ctf_trace *trace) |
| 496 | { |
| 497 | struct ctf_node *iter; |
| 498 | GQuark field_name; |
| 499 | |
| 500 | cds_list_for_each_entry(iter, type_declarators, siblings) { |
| 501 | struct declaration *field_declaration; |
| 502 | |
| 503 | field_declaration = ctf_type_declarator_visit(fd, depth, |
| 504 | type_specifier_list, |
| 505 | &field_name, iter, |
| 506 | struct_declaration->scope, |
| 507 | NULL, trace); |
| 508 | if (!field_declaration) { |
| 509 | fprintf(fd, "[error] %s: unable to find struct field declaration type\n", __func__); |
| 510 | return -EINVAL; |
| 511 | } |
| 512 | |
| 513 | /* Check if field with same name already exists */ |
| 514 | if (struct_declaration_lookup_field_index(struct_declaration, field_name) >= 0) { |
| 515 | fprintf(fd, "[error] %s: duplicate field %s in struct\n", __func__, g_quark_to_string(field_name)); |
| 516 | return -EINVAL; |
| 517 | } |
| 518 | |
| 519 | struct_declaration_add_field(struct_declaration, |
| 520 | g_quark_to_string(field_name), |
| 521 | field_declaration); |
| 522 | } |
| 523 | return 0; |
| 524 | } |
| 525 | |
| 526 | static |
| 527 | int ctf_variant_type_declarators_visit(FILE *fd, int depth, |
| 528 | struct declaration_untagged_variant *untagged_variant_declaration, |
| 529 | struct ctf_node *type_specifier_list, |
| 530 | struct cds_list_head *type_declarators, |
| 531 | struct declaration_scope *declaration_scope, |
| 532 | struct ctf_trace *trace) |
| 533 | { |
| 534 | struct ctf_node *iter; |
| 535 | GQuark field_name; |
| 536 | |
| 537 | cds_list_for_each_entry(iter, type_declarators, siblings) { |
| 538 | struct declaration *field_declaration; |
| 539 | |
| 540 | field_declaration = ctf_type_declarator_visit(fd, depth, |
| 541 | type_specifier_list, |
| 542 | &field_name, iter, |
| 543 | untagged_variant_declaration->scope, |
| 544 | NULL, trace); |
| 545 | if (!field_declaration) { |
| 546 | fprintf(fd, "[error] %s: unable to find variant field declaration type\n", __func__); |
| 547 | return -EINVAL; |
| 548 | } |
| 549 | |
| 550 | if (untagged_variant_declaration_get_field_from_tag(untagged_variant_declaration, field_name) != NULL) { |
| 551 | fprintf(fd, "[error] %s: duplicate field %s in variant\n", __func__, g_quark_to_string(field_name)); |
| 552 | return -EINVAL; |
| 553 | } |
| 554 | |
| 555 | |
| 556 | untagged_variant_declaration_add_field(untagged_variant_declaration, |
| 557 | g_quark_to_string(field_name), |
| 558 | field_declaration); |
| 559 | } |
| 560 | return 0; |
| 561 | } |
| 562 | |
| 563 | static |
| 564 | int ctf_typedef_visit(FILE *fd, int depth, struct declaration_scope *scope, |
| 565 | struct ctf_node *type_specifier_list, |
| 566 | struct cds_list_head *type_declarators, |
| 567 | struct ctf_trace *trace) |
| 568 | { |
| 569 | struct ctf_node *iter; |
| 570 | GQuark identifier; |
| 571 | |
| 572 | cds_list_for_each_entry(iter, type_declarators, siblings) { |
| 573 | struct declaration *type_declaration; |
| 574 | int ret; |
| 575 | |
| 576 | type_declaration = ctf_type_declarator_visit(fd, depth, |
| 577 | type_specifier_list, |
| 578 | &identifier, iter, |
| 579 | scope, NULL, trace); |
| 580 | if (!type_declaration) { |
| 581 | fprintf(fd, "[error] %s: problem creating type declaration\n", __func__); |
| 582 | return -EINVAL; |
| 583 | } |
| 584 | /* |
| 585 | * Don't allow typedef and typealias of untagged |
| 586 | * variants. |
| 587 | */ |
| 588 | if (type_declaration->id == CTF_TYPE_UNTAGGED_VARIANT) { |
| 589 | fprintf(fd, "[error] %s: typedef of untagged variant is not permitted.\n", __func__); |
| 590 | declaration_unref(type_declaration); |
| 591 | return -EPERM; |
| 592 | } |
| 593 | ret = register_declaration(identifier, type_declaration, scope); |
| 594 | if (ret) { |
| 595 | type_declaration->declaration_free(type_declaration); |
| 596 | return ret; |
| 597 | } |
| 598 | } |
| 599 | return 0; |
| 600 | } |
| 601 | |
| 602 | static |
| 603 | int ctf_typealias_visit(FILE *fd, int depth, struct declaration_scope *scope, |
| 604 | struct ctf_node *target, struct ctf_node *alias, |
| 605 | struct ctf_trace *trace) |
| 606 | { |
| 607 | struct declaration *type_declaration; |
| 608 | struct ctf_node *node; |
| 609 | GQuark dummy_id; |
| 610 | GQuark alias_q; |
| 611 | int err; |
| 612 | |
| 613 | /* See ctf_visitor_type_declarator() in the semantic validator. */ |
| 614 | |
| 615 | /* |
| 616 | * Create target type declaration. |
| 617 | */ |
| 618 | |
| 619 | if (cds_list_empty(&target->u.typealias_target.type_declarators)) |
| 620 | node = NULL; |
| 621 | else |
| 622 | node = _cds_list_first_entry(&target->u.typealias_target.type_declarators, |
| 623 | struct ctf_node, siblings); |
| 624 | type_declaration = ctf_type_declarator_visit(fd, depth, |
| 625 | target->u.typealias_target.type_specifier_list, |
| 626 | &dummy_id, node, |
| 627 | scope, NULL, trace); |
| 628 | if (!type_declaration) { |
| 629 | fprintf(fd, "[error] %s: problem creating type declaration\n", __func__); |
| 630 | err = -EINVAL; |
| 631 | goto error; |
| 632 | } |
| 633 | /* |
| 634 | * Don't allow typedef and typealias of untagged |
| 635 | * variants. |
| 636 | */ |
| 637 | if (type_declaration->id == CTF_TYPE_UNTAGGED_VARIANT) { |
| 638 | fprintf(fd, "[error] %s: typedef of untagged variant is not permitted.\n", __func__); |
| 639 | declaration_unref(type_declaration); |
| 640 | return -EPERM; |
| 641 | } |
| 642 | /* |
| 643 | * The semantic validator does not check whether the target is |
| 644 | * abstract or not (if it has an identifier). Check it here. |
| 645 | */ |
| 646 | if (dummy_id != 0) { |
| 647 | fprintf(fd, "[error] %s: expecting empty identifier\n", __func__); |
| 648 | err = -EINVAL; |
| 649 | goto error; |
| 650 | } |
| 651 | /* |
| 652 | * Create alias identifier. |
| 653 | */ |
| 654 | |
| 655 | node = _cds_list_first_entry(&alias->u.typealias_alias.type_declarators, |
| 656 | struct ctf_node, siblings); |
| 657 | alias_q = create_typealias_identifier(fd, depth, |
| 658 | alias->u.typealias_alias.type_specifier_list, node); |
| 659 | err = register_declaration(alias_q, type_declaration, scope); |
| 660 | if (err) |
| 661 | goto error; |
| 662 | return 0; |
| 663 | |
| 664 | error: |
| 665 | if (type_declaration) { |
| 666 | type_declaration->declaration_free(type_declaration); |
| 667 | } |
| 668 | return err; |
| 669 | } |
| 670 | |
| 671 | static |
| 672 | int ctf_struct_declaration_list_visit(FILE *fd, int depth, |
| 673 | struct ctf_node *iter, struct declaration_struct *struct_declaration, |
| 674 | struct ctf_trace *trace) |
| 675 | { |
| 676 | int ret; |
| 677 | |
| 678 | switch (iter->type) { |
| 679 | case NODE_TYPEDEF: |
| 680 | /* For each declarator, declare type and add type to struct declaration scope */ |
| 681 | ret = ctf_typedef_visit(fd, depth, |
| 682 | struct_declaration->scope, |
| 683 | iter->u._typedef.type_specifier_list, |
| 684 | &iter->u._typedef.type_declarators, trace); |
| 685 | if (ret) |
| 686 | return ret; |
| 687 | break; |
| 688 | case NODE_TYPEALIAS: |
| 689 | /* Declare type with declarator and add type to struct declaration scope */ |
| 690 | ret = ctf_typealias_visit(fd, depth, |
| 691 | struct_declaration->scope, |
| 692 | iter->u.typealias.target, |
| 693 | iter->u.typealias.alias, trace); |
| 694 | if (ret) |
| 695 | return ret; |
| 696 | break; |
| 697 | case NODE_STRUCT_OR_VARIANT_DECLARATION: |
| 698 | /* Add field to structure declaration */ |
| 699 | ret = ctf_struct_type_declarators_visit(fd, depth, |
| 700 | struct_declaration, |
| 701 | iter->u.struct_or_variant_declaration.type_specifier_list, |
| 702 | &iter->u.struct_or_variant_declaration.type_declarators, |
| 703 | struct_declaration->scope, trace); |
| 704 | if (ret) |
| 705 | return ret; |
| 706 | break; |
| 707 | default: |
| 708 | fprintf(fd, "[error] %s: unexpected node type %d\n", __func__, (int) iter->type); |
| 709 | assert(0); |
| 710 | } |
| 711 | return 0; |
| 712 | } |
| 713 | |
| 714 | static |
| 715 | int ctf_variant_declaration_list_visit(FILE *fd, int depth, |
| 716 | struct ctf_node *iter, |
| 717 | struct declaration_untagged_variant *untagged_variant_declaration, |
| 718 | struct ctf_trace *trace) |
| 719 | { |
| 720 | int ret; |
| 721 | |
| 722 | switch (iter->type) { |
| 723 | case NODE_TYPEDEF: |
| 724 | /* For each declarator, declare type and add type to variant declaration scope */ |
| 725 | ret = ctf_typedef_visit(fd, depth, |
| 726 | untagged_variant_declaration->scope, |
| 727 | iter->u._typedef.type_specifier_list, |
| 728 | &iter->u._typedef.type_declarators, trace); |
| 729 | if (ret) |
| 730 | return ret; |
| 731 | break; |
| 732 | case NODE_TYPEALIAS: |
| 733 | /* Declare type with declarator and add type to variant declaration scope */ |
| 734 | ret = ctf_typealias_visit(fd, depth, |
| 735 | untagged_variant_declaration->scope, |
| 736 | iter->u.typealias.target, |
| 737 | iter->u.typealias.alias, trace); |
| 738 | if (ret) |
| 739 | return ret; |
| 740 | break; |
| 741 | case NODE_STRUCT_OR_VARIANT_DECLARATION: |
| 742 | /* Add field to structure declaration */ |
| 743 | ret = ctf_variant_type_declarators_visit(fd, depth, |
| 744 | untagged_variant_declaration, |
| 745 | iter->u.struct_or_variant_declaration.type_specifier_list, |
| 746 | &iter->u.struct_or_variant_declaration.type_declarators, |
| 747 | untagged_variant_declaration->scope, trace); |
| 748 | if (ret) |
| 749 | return ret; |
| 750 | break; |
| 751 | default: |
| 752 | fprintf(fd, "[error] %s: unexpected node type %d\n", __func__, (int) iter->type); |
| 753 | assert(0); |
| 754 | } |
| 755 | return 0; |
| 756 | } |
| 757 | |
| 758 | static |
| 759 | struct declaration *ctf_declaration_struct_visit(FILE *fd, |
| 760 | int depth, const char *name, struct cds_list_head *declaration_list, |
| 761 | int has_body, struct cds_list_head *min_align, |
| 762 | struct declaration_scope *declaration_scope, |
| 763 | struct ctf_trace *trace) |
| 764 | { |
| 765 | struct declaration_struct *struct_declaration; |
| 766 | struct ctf_node *iter; |
| 767 | int ret; |
| 768 | |
| 769 | /* |
| 770 | * For named struct (without body), lookup in |
| 771 | * declaration scope. Don't take reference on struct |
| 772 | * declaration: ref is only taken upon definition. |
| 773 | */ |
| 774 | if (!has_body) { |
| 775 | assert(name); |
| 776 | struct_declaration = |
| 777 | lookup_struct_declaration(g_quark_from_string(name), |
| 778 | declaration_scope); |
| 779 | return &struct_declaration->p; |
| 780 | } else { |
| 781 | uint64_t min_align_value = 0; |
| 782 | |
| 783 | /* For unnamed struct, create type */ |
| 784 | /* For named struct (with body), create type and add to declaration scope */ |
| 785 | if (name) { |
| 786 | if (lookup_struct_declaration(g_quark_from_string(name), |
| 787 | declaration_scope)) { |
| 788 | |
| 789 | fprintf(fd, "[error] %s: struct %s already declared in scope\n", __func__, name); |
| 790 | return NULL; |
| 791 | } |
| 792 | } |
| 793 | if (!cds_list_empty(min_align)) { |
| 794 | ret = get_unary_unsigned(min_align, &min_align_value); |
| 795 | if (ret) { |
| 796 | fprintf(fd, "[error] %s: unexpected unary expression for structure \"align\" attribute\n", __func__); |
| 797 | ret = -EINVAL; |
| 798 | goto error; |
| 799 | } |
| 800 | } |
| 801 | struct_declaration = struct_declaration_new(declaration_scope, |
| 802 | min_align_value); |
| 803 | cds_list_for_each_entry(iter, declaration_list, siblings) { |
| 804 | ret = ctf_struct_declaration_list_visit(fd, depth + 1, iter, |
| 805 | struct_declaration, trace); |
| 806 | if (ret) |
| 807 | goto error_free_declaration; |
| 808 | } |
| 809 | if (name) { |
| 810 | ret = register_struct_declaration(g_quark_from_string(name), |
| 811 | struct_declaration, |
| 812 | declaration_scope); |
| 813 | assert(!ret); |
| 814 | } |
| 815 | return &struct_declaration->p; |
| 816 | } |
| 817 | error_free_declaration: |
| 818 | struct_declaration->p.declaration_free(&struct_declaration->p); |
| 819 | error: |
| 820 | return NULL; |
| 821 | } |
| 822 | |
| 823 | static |
| 824 | struct declaration *ctf_declaration_variant_visit(FILE *fd, |
| 825 | int depth, const char *name, const char *choice, |
| 826 | struct cds_list_head *declaration_list, |
| 827 | int has_body, struct declaration_scope *declaration_scope, |
| 828 | struct ctf_trace *trace) |
| 829 | { |
| 830 | struct declaration_untagged_variant *untagged_variant_declaration; |
| 831 | struct declaration_variant *variant_declaration; |
| 832 | struct ctf_node *iter; |
| 833 | int ret; |
| 834 | |
| 835 | /* |
| 836 | * For named variant (without body), lookup in |
| 837 | * declaration scope. Don't take reference on variant |
| 838 | * declaration: ref is only taken upon definition. |
| 839 | */ |
| 840 | if (!has_body) { |
| 841 | assert(name); |
| 842 | untagged_variant_declaration = |
| 843 | lookup_variant_declaration(g_quark_from_string(name), |
| 844 | declaration_scope); |
| 845 | } else { |
| 846 | /* For unnamed variant, create type */ |
| 847 | /* For named variant (with body), create type and add to declaration scope */ |
| 848 | if (name) { |
| 849 | if (lookup_variant_declaration(g_quark_from_string(name), |
| 850 | declaration_scope)) { |
| 851 | |
| 852 | fprintf(fd, "[error] %s: variant %s already declared in scope\n", __func__, name); |
| 853 | return NULL; |
| 854 | } |
| 855 | } |
| 856 | untagged_variant_declaration = untagged_variant_declaration_new(declaration_scope); |
| 857 | cds_list_for_each_entry(iter, declaration_list, siblings) { |
| 858 | ret = ctf_variant_declaration_list_visit(fd, depth + 1, iter, |
| 859 | untagged_variant_declaration, trace); |
| 860 | if (ret) |
| 861 | goto error; |
| 862 | } |
| 863 | if (name) { |
| 864 | ret = register_variant_declaration(g_quark_from_string(name), |
| 865 | untagged_variant_declaration, |
| 866 | declaration_scope); |
| 867 | assert(!ret); |
| 868 | } |
| 869 | } |
| 870 | /* |
| 871 | * if tagged, create tagged variant and return. else return |
| 872 | * untagged variant. |
| 873 | */ |
| 874 | if (!choice) { |
| 875 | return &untagged_variant_declaration->p; |
| 876 | } else { |
| 877 | variant_declaration = variant_declaration_new(untagged_variant_declaration, choice); |
| 878 | if (!variant_declaration) |
| 879 | goto error; |
| 880 | declaration_unref(&untagged_variant_declaration->p); |
| 881 | return &variant_declaration->p; |
| 882 | } |
| 883 | error: |
| 884 | untagged_variant_declaration->p.declaration_free(&untagged_variant_declaration->p); |
| 885 | return NULL; |
| 886 | } |
| 887 | |
| 888 | static |
| 889 | int ctf_enumerator_list_visit(FILE *fd, int depth, |
| 890 | struct ctf_node *enumerator, |
| 891 | struct declaration_enum *enum_declaration) |
| 892 | { |
| 893 | GQuark q; |
| 894 | struct ctf_node *iter; |
| 895 | |
| 896 | q = g_quark_from_string(enumerator->u.enumerator.id); |
| 897 | if (enum_declaration->integer_declaration->signedness) { |
| 898 | int64_t start, end; |
| 899 | int nr_vals = 0; |
| 900 | |
| 901 | cds_list_for_each_entry(iter, &enumerator->u.enumerator.values, siblings) { |
| 902 | int64_t *target; |
| 903 | |
| 904 | assert(iter->type == NODE_UNARY_EXPRESSION); |
| 905 | if (nr_vals == 0) |
| 906 | target = &start; |
| 907 | else |
| 908 | target = &end; |
| 909 | |
| 910 | switch (iter->u.unary_expression.type) { |
| 911 | case UNARY_SIGNED_CONSTANT: |
| 912 | *target = iter->u.unary_expression.u.signed_constant; |
| 913 | break; |
| 914 | case UNARY_UNSIGNED_CONSTANT: |
| 915 | *target = iter->u.unary_expression.u.unsigned_constant; |
| 916 | break; |
| 917 | default: |
| 918 | fprintf(fd, "[error] %s: invalid enumerator\n", __func__); |
| 919 | return -EINVAL; |
| 920 | } |
| 921 | if (nr_vals > 1) { |
| 922 | fprintf(fd, "[error] %s: invalid enumerator\n", __func__); |
| 923 | return -EINVAL; |
| 924 | } |
| 925 | nr_vals++; |
| 926 | } |
| 927 | if (nr_vals == 1) |
| 928 | end = start; |
| 929 | enum_signed_insert(enum_declaration, start, end, q); |
| 930 | } else { |
| 931 | uint64_t start, end; |
| 932 | int nr_vals = 0; |
| 933 | |
| 934 | cds_list_for_each_entry(iter, &enumerator->u.enumerator.values, siblings) { |
| 935 | uint64_t *target; |
| 936 | |
| 937 | assert(iter->type == NODE_UNARY_EXPRESSION); |
| 938 | if (nr_vals == 0) |
| 939 | target = &start; |
| 940 | else |
| 941 | target = &end; |
| 942 | |
| 943 | switch (iter->u.unary_expression.type) { |
| 944 | case UNARY_UNSIGNED_CONSTANT: |
| 945 | *target = iter->u.unary_expression.u.unsigned_constant; |
| 946 | break; |
| 947 | case UNARY_SIGNED_CONSTANT: |
| 948 | /* |
| 949 | * We don't accept signed constants for enums with unsigned |
| 950 | * container type. |
| 951 | */ |
| 952 | fprintf(fd, "[error] %s: invalid enumerator (signed constant encountered, but enum container type is unsigned)\n", __func__); |
| 953 | return -EINVAL; |
| 954 | default: |
| 955 | fprintf(fd, "[error] %s: invalid enumerator\n", __func__); |
| 956 | return -EINVAL; |
| 957 | } |
| 958 | if (nr_vals > 1) { |
| 959 | fprintf(fd, "[error] %s: invalid enumerator\n", __func__); |
| 960 | return -EINVAL; |
| 961 | } |
| 962 | nr_vals++; |
| 963 | } |
| 964 | if (nr_vals == 1) |
| 965 | end = start; |
| 966 | enum_unsigned_insert(enum_declaration, start, end, q); |
| 967 | } |
| 968 | return 0; |
| 969 | } |
| 970 | |
| 971 | static |
| 972 | struct declaration *ctf_declaration_enum_visit(FILE *fd, int depth, |
| 973 | const char *name, |
| 974 | struct ctf_node *container_type, |
| 975 | struct cds_list_head *enumerator_list, |
| 976 | int has_body, |
| 977 | struct declaration_scope *declaration_scope, |
| 978 | struct ctf_trace *trace) |
| 979 | { |
| 980 | struct declaration *declaration; |
| 981 | struct declaration_enum *enum_declaration; |
| 982 | struct declaration_integer *integer_declaration; |
| 983 | struct ctf_node *iter; |
| 984 | GQuark dummy_id; |
| 985 | int ret; |
| 986 | |
| 987 | /* |
| 988 | * For named enum (without body), lookup in |
| 989 | * declaration scope. Don't take reference on enum |
| 990 | * declaration: ref is only taken upon definition. |
| 991 | */ |
| 992 | if (!has_body) { |
| 993 | assert(name); |
| 994 | enum_declaration = |
| 995 | lookup_enum_declaration(g_quark_from_string(name), |
| 996 | declaration_scope); |
| 997 | return &enum_declaration->p; |
| 998 | } else { |
| 999 | /* For unnamed enum, create type */ |
| 1000 | /* For named enum (with body), create type and add to declaration scope */ |
| 1001 | if (name) { |
| 1002 | if (lookup_enum_declaration(g_quark_from_string(name), |
| 1003 | declaration_scope)) { |
| 1004 | |
| 1005 | fprintf(fd, "[error] %s: enum %s already declared in scope\n", __func__, name); |
| 1006 | return NULL; |
| 1007 | } |
| 1008 | } |
| 1009 | if (!container_type) { |
| 1010 | declaration = lookup_declaration(g_quark_from_static_string("int"), |
| 1011 | declaration_scope); |
| 1012 | if (!declaration) { |
| 1013 | fprintf(fd, "[error] %s: \"int\" type declaration missing for enumeration\n", __func__); |
| 1014 | return NULL; |
| 1015 | } |
| 1016 | } else { |
| 1017 | declaration = ctf_type_declarator_visit(fd, depth, |
| 1018 | container_type, |
| 1019 | &dummy_id, NULL, |
| 1020 | declaration_scope, |
| 1021 | NULL, trace); |
| 1022 | } |
| 1023 | if (!declaration) { |
| 1024 | fprintf(fd, "[error] %s: unable to create container type for enumeration\n", __func__); |
| 1025 | return NULL; |
| 1026 | } |
| 1027 | if (declaration->id != CTF_TYPE_INTEGER) { |
| 1028 | fprintf(fd, "[error] %s: container type for enumeration is not integer\n", __func__); |
| 1029 | return NULL; |
| 1030 | } |
| 1031 | integer_declaration = container_of(declaration, struct declaration_integer, p); |
| 1032 | enum_declaration = enum_declaration_new(integer_declaration); |
| 1033 | declaration_unref(&integer_declaration->p); /* leave ref to enum */ |
| 1034 | cds_list_for_each_entry(iter, enumerator_list, siblings) { |
| 1035 | ret = ctf_enumerator_list_visit(fd, depth + 1, iter, enum_declaration); |
| 1036 | if (ret) |
| 1037 | goto error; |
| 1038 | } |
| 1039 | if (name) { |
| 1040 | ret = register_enum_declaration(g_quark_from_string(name), |
| 1041 | enum_declaration, |
| 1042 | declaration_scope); |
| 1043 | assert(!ret); |
| 1044 | } |
| 1045 | return &enum_declaration->p; |
| 1046 | } |
| 1047 | error: |
| 1048 | enum_declaration->p.declaration_free(&enum_declaration->p); |
| 1049 | return NULL; |
| 1050 | } |
| 1051 | |
| 1052 | static |
| 1053 | struct declaration *ctf_declaration_type_specifier_visit(FILE *fd, int depth, |
| 1054 | struct ctf_node *type_specifier_list, |
| 1055 | struct declaration_scope *declaration_scope) |
| 1056 | { |
| 1057 | GString *str; |
| 1058 | struct declaration *declaration; |
| 1059 | char *str_c; |
| 1060 | int ret; |
| 1061 | GQuark id_q; |
| 1062 | |
| 1063 | str = g_string_new(""); |
| 1064 | ret = visit_type_specifier_list(fd, type_specifier_list, str); |
| 1065 | if (ret) |
| 1066 | return NULL; |
| 1067 | str_c = g_string_free(str, FALSE); |
| 1068 | id_q = g_quark_from_string(str_c); |
| 1069 | g_free(str_c); |
| 1070 | declaration = lookup_declaration(id_q, declaration_scope); |
| 1071 | return declaration; |
| 1072 | } |
| 1073 | |
| 1074 | /* |
| 1075 | * Returns 0/1 boolean, or < 0 on error. |
| 1076 | */ |
| 1077 | static |
| 1078 | int get_boolean(FILE *fd, int depth, struct ctf_node *unary_expression) |
| 1079 | { |
| 1080 | if (unary_expression->type != NODE_UNARY_EXPRESSION) { |
| 1081 | fprintf(fd, "[error] %s: expecting unary expression\n", |
| 1082 | __func__); |
| 1083 | return -EINVAL; |
| 1084 | } |
| 1085 | switch (unary_expression->u.unary_expression.type) { |
| 1086 | case UNARY_UNSIGNED_CONSTANT: |
| 1087 | if (unary_expression->u.unary_expression.u.unsigned_constant == 0) |
| 1088 | return 0; |
| 1089 | else |
| 1090 | return 1; |
| 1091 | case UNARY_SIGNED_CONSTANT: |
| 1092 | if (unary_expression->u.unary_expression.u.signed_constant == 0) |
| 1093 | return 0; |
| 1094 | else |
| 1095 | return 1; |
| 1096 | case UNARY_STRING: |
| 1097 | if (!strcmp(unary_expression->u.unary_expression.u.string, "true")) |
| 1098 | return 1; |
| 1099 | else if (!strcmp(unary_expression->u.unary_expression.u.string, "TRUE")) |
| 1100 | return 1; |
| 1101 | else if (!strcmp(unary_expression->u.unary_expression.u.string, "false")) |
| 1102 | return 0; |
| 1103 | else if (!strcmp(unary_expression->u.unary_expression.u.string, "FALSE")) |
| 1104 | return 0; |
| 1105 | else { |
| 1106 | fprintf(fd, "[error] %s: unexpected string \"%s\"\n", |
| 1107 | __func__, unary_expression->u.unary_expression.u.string); |
| 1108 | return -EINVAL; |
| 1109 | } |
| 1110 | break; |
| 1111 | default: |
| 1112 | fprintf(fd, "[error] %s: unexpected unary expression type\n", |
| 1113 | __func__); |
| 1114 | return -EINVAL; |
| 1115 | } |
| 1116 | |
| 1117 | } |
| 1118 | |
| 1119 | static |
| 1120 | int get_trace_byte_order(FILE *fd, int depth, struct ctf_node *unary_expression) |
| 1121 | { |
| 1122 | int byte_order; |
| 1123 | |
| 1124 | if (unary_expression->u.unary_expression.type != UNARY_STRING) { |
| 1125 | fprintf(fd, "[error] %s: byte_order: expecting string\n", |
| 1126 | __func__); |
| 1127 | return -EINVAL; |
| 1128 | } |
| 1129 | if (!strcmp(unary_expression->u.unary_expression.u.string, "be")) |
| 1130 | byte_order = BIG_ENDIAN; |
| 1131 | else if (!strcmp(unary_expression->u.unary_expression.u.string, "le")) |
| 1132 | byte_order = LITTLE_ENDIAN; |
| 1133 | else { |
| 1134 | fprintf(fd, "[error] %s: unexpected string \"%s\". Should be \"native\", \"network\", \"be\" or \"le\".\n", |
| 1135 | __func__, unary_expression->u.unary_expression.u.string); |
| 1136 | return -EINVAL; |
| 1137 | } |
| 1138 | return byte_order; |
| 1139 | } |
| 1140 | |
| 1141 | static |
| 1142 | int get_byte_order(FILE *fd, int depth, struct ctf_node *unary_expression, |
| 1143 | struct ctf_trace *trace) |
| 1144 | { |
| 1145 | int byte_order; |
| 1146 | |
| 1147 | if (unary_expression->u.unary_expression.type != UNARY_STRING) { |
| 1148 | fprintf(fd, "[error] %s: byte_order: expecting string\n", |
| 1149 | __func__); |
| 1150 | return -EINVAL; |
| 1151 | } |
| 1152 | if (!strcmp(unary_expression->u.unary_expression.u.string, "native")) |
| 1153 | byte_order = trace->byte_order; |
| 1154 | else if (!strcmp(unary_expression->u.unary_expression.u.string, "network")) |
| 1155 | byte_order = BIG_ENDIAN; |
| 1156 | else if (!strcmp(unary_expression->u.unary_expression.u.string, "be")) |
| 1157 | byte_order = BIG_ENDIAN; |
| 1158 | else if (!strcmp(unary_expression->u.unary_expression.u.string, "le")) |
| 1159 | byte_order = LITTLE_ENDIAN; |
| 1160 | else { |
| 1161 | fprintf(fd, "[error] %s: unexpected string \"%s\". Should be \"native\", \"network\", \"be\" or \"le\".\n", |
| 1162 | __func__, unary_expression->u.unary_expression.u.string); |
| 1163 | return -EINVAL; |
| 1164 | } |
| 1165 | return byte_order; |
| 1166 | } |
| 1167 | |
| 1168 | static |
| 1169 | struct declaration *ctf_declaration_integer_visit(FILE *fd, int depth, |
| 1170 | struct cds_list_head *expressions, |
| 1171 | struct ctf_trace *trace) |
| 1172 | { |
| 1173 | struct ctf_node *expression; |
| 1174 | uint64_t alignment = 1, size = 0; |
| 1175 | int byte_order = trace->byte_order; |
| 1176 | int signedness = 0; |
| 1177 | int has_alignment = 0, has_size = 0; |
| 1178 | int base = 0; |
| 1179 | enum ctf_string_encoding encoding = CTF_STRING_NONE; |
| 1180 | struct ctf_clock *clock = NULL; |
| 1181 | struct declaration_integer *integer_declaration; |
| 1182 | |
| 1183 | cds_list_for_each_entry(expression, expressions, siblings) { |
| 1184 | struct ctf_node *left, *right; |
| 1185 | |
| 1186 | left = _cds_list_first_entry(&expression->u.ctf_expression.left, struct ctf_node, siblings); |
| 1187 | right = _cds_list_first_entry(&expression->u.ctf_expression.right, struct ctf_node, siblings); |
| 1188 | assert(left->u.unary_expression.type == UNARY_STRING); |
| 1189 | if (!strcmp(left->u.unary_expression.u.string, "signed")) { |
| 1190 | signedness = get_boolean(fd, depth, right); |
| 1191 | if (signedness < 0) |
| 1192 | return NULL; |
| 1193 | } else if (!strcmp(left->u.unary_expression.u.string, "byte_order")) { |
| 1194 | byte_order = get_byte_order(fd, depth, right, trace); |
| 1195 | if (byte_order < 0) |
| 1196 | return NULL; |
| 1197 | } else if (!strcmp(left->u.unary_expression.u.string, "size")) { |
| 1198 | if (right->u.unary_expression.type != UNARY_UNSIGNED_CONSTANT) { |
| 1199 | fprintf(fd, "[error] %s: size: expecting unsigned constant\n", |
| 1200 | __func__); |
| 1201 | return NULL; |
| 1202 | } |
| 1203 | size = right->u.unary_expression.u.unsigned_constant; |
| 1204 | has_size = 1; |
| 1205 | } else if (!strcmp(left->u.unary_expression.u.string, "align")) { |
| 1206 | if (right->u.unary_expression.type != UNARY_UNSIGNED_CONSTANT) { |
| 1207 | fprintf(fd, "[error] %s: align: expecting unsigned constant\n", |
| 1208 | __func__); |
| 1209 | return NULL; |
| 1210 | } |
| 1211 | alignment = right->u.unary_expression.u.unsigned_constant; |
| 1212 | /* Make sure alignment is a power of two */ |
| 1213 | if (alignment == 0 || (alignment & (alignment - 1)) != 0) { |
| 1214 | fprintf(fd, "[error] %s: align: expecting power of two\n", |
| 1215 | __func__); |
| 1216 | return NULL; |
| 1217 | } |
| 1218 | has_alignment = 1; |
| 1219 | } else if (!strcmp(left->u.unary_expression.u.string, "base")) { |
| 1220 | switch (right->u.unary_expression.type) { |
| 1221 | case UNARY_UNSIGNED_CONSTANT: |
| 1222 | switch (right->u.unary_expression.u.unsigned_constant) { |
| 1223 | case 2: |
| 1224 | case 8: |
| 1225 | case 10: |
| 1226 | case 16: |
| 1227 | base = right->u.unary_expression.u.unsigned_constant; |
| 1228 | break; |
| 1229 | default: |
| 1230 | fprintf(fd, "[error] %s: base not supported (%" PRIu64 ")\n", |
| 1231 | __func__, right->u.unary_expression.u.unsigned_constant); |
| 1232 | return NULL; |
| 1233 | } |
| 1234 | break; |
| 1235 | case UNARY_STRING: |
| 1236 | { |
| 1237 | char *s_right = concatenate_unary_strings(&expression->u.ctf_expression.right); |
| 1238 | if (!s_right) { |
| 1239 | fprintf(fd, "[error] %s: unexpected unary expression for integer base\n", __func__); |
| 1240 | g_free(s_right); |
| 1241 | return NULL; |
| 1242 | } |
| 1243 | if (!strcmp(s_right, "decimal") || !strcmp(s_right, "dec") || !strcmp(s_right, "d") |
| 1244 | || !strcmp(s_right, "i") || !strcmp(s_right, "u")) { |
| 1245 | base = 10; |
| 1246 | } else if (!strcmp(s_right, "hexadecimal") || !strcmp(s_right, "hex") |
| 1247 | || !strcmp(s_right, "x") || !strcmp(s_right, "X") |
| 1248 | || !strcmp(s_right, "p")) { |
| 1249 | base = 16; |
| 1250 | } else if (!strcmp(s_right, "octal") || !strcmp(s_right, "oct") |
| 1251 | || !strcmp(s_right, "o")) { |
| 1252 | base = 8; |
| 1253 | } else if (!strcmp(s_right, "binary") || !strcmp(s_right, "b")) { |
| 1254 | base = 2; |
| 1255 | } else { |
| 1256 | fprintf(fd, "[error] %s: unexpected expression for integer base (%s)\n", __func__, s_right); |
| 1257 | g_free(s_right); |
| 1258 | return NULL; |
| 1259 | } |
| 1260 | |
| 1261 | g_free(s_right); |
| 1262 | break; |
| 1263 | } |
| 1264 | default: |
| 1265 | fprintf(fd, "[error] %s: base: expecting unsigned constant or unary string\n", |
| 1266 | __func__); |
| 1267 | return NULL; |
| 1268 | } |
| 1269 | } else if (!strcmp(left->u.unary_expression.u.string, "encoding")) { |
| 1270 | char *s_right; |
| 1271 | |
| 1272 | if (right->u.unary_expression.type != UNARY_STRING) { |
| 1273 | fprintf(fd, "[error] %s: encoding: expecting unary string\n", |
| 1274 | __func__); |
| 1275 | return NULL; |
| 1276 | } |
| 1277 | s_right = concatenate_unary_strings(&expression->u.ctf_expression.right); |
| 1278 | if (!s_right) { |
| 1279 | fprintf(fd, "[error] %s: unexpected unary expression for integer base\n", __func__); |
| 1280 | g_free(s_right); |
| 1281 | return NULL; |
| 1282 | } |
| 1283 | if (!strcmp(s_right, "UTF8") |
| 1284 | || !strcmp(s_right, "utf8") |
| 1285 | || !strcmp(s_right, "utf-8") |
| 1286 | || !strcmp(s_right, "UTF-8")) |
| 1287 | encoding = CTF_STRING_UTF8; |
| 1288 | else if (!strcmp(s_right, "ASCII") |
| 1289 | || !strcmp(s_right, "ascii")) |
| 1290 | encoding = CTF_STRING_ASCII; |
| 1291 | else if (!strcmp(s_right, "none")) |
| 1292 | encoding = CTF_STRING_NONE; |
| 1293 | else { |
| 1294 | fprintf(fd, "[error] %s: unknown string encoding \"%s\"\n", __func__, s_right); |
| 1295 | g_free(s_right); |
| 1296 | return NULL; |
| 1297 | } |
| 1298 | g_free(s_right); |
| 1299 | } else if (!strcmp(left->u.unary_expression.u.string, "map")) { |
| 1300 | GQuark clock_name; |
| 1301 | |
| 1302 | if (right->u.unary_expression.type != UNARY_STRING) { |
| 1303 | fprintf(fd, "[error] %s: map: expecting identifier\n", |
| 1304 | __func__); |
| 1305 | return NULL; |
| 1306 | } |
| 1307 | /* currently only support clock.name.value */ |
| 1308 | clock_name = get_map_clock_name_value(&expression->u.ctf_expression.right); |
| 1309 | if (!clock_name) { |
| 1310 | char *s_right; |
| 1311 | |
| 1312 | s_right = concatenate_unary_strings(&expression->u.ctf_expression.right); |
| 1313 | if (!s_right) { |
| 1314 | fprintf(fd, "[error] %s: unexpected unary expression for integer map\n", __func__); |
| 1315 | g_free(s_right); |
| 1316 | return NULL; |
| 1317 | } |
| 1318 | fprintf(fd, "[warning] %s: unknown map %s in integer declaration\n", __func__, |
| 1319 | s_right); |
| 1320 | g_free(s_right); |
| 1321 | continue; |
| 1322 | } |
| 1323 | clock = trace_clock_lookup(trace, clock_name); |
| 1324 | if (!clock) { |
| 1325 | fprintf(fd, "[error] %s: map: unable to find clock %s declaration\n", |
| 1326 | __func__, g_quark_to_string(clock_name)); |
| 1327 | return NULL; |
| 1328 | } |
| 1329 | } else { |
| 1330 | fprintf(fd, "[warning] %s: unknown attribute name %s\n", |
| 1331 | __func__, left->u.unary_expression.u.string); |
| 1332 | /* Fall-through after warning */ |
| 1333 | } |
| 1334 | } |
| 1335 | if (!has_size) { |
| 1336 | fprintf(fd, "[error] %s: missing size attribute\n", __func__); |
| 1337 | return NULL; |
| 1338 | } |
| 1339 | if (!has_alignment) { |
| 1340 | if (size % CHAR_BIT) { |
| 1341 | /* bit-packed alignment */ |
| 1342 | alignment = 1; |
| 1343 | } else { |
| 1344 | /* byte-packed alignment */ |
| 1345 | alignment = CHAR_BIT; |
| 1346 | } |
| 1347 | } |
| 1348 | integer_declaration = integer_declaration_new(size, |
| 1349 | byte_order, signedness, alignment, |
| 1350 | base, encoding, clock); |
| 1351 | return &integer_declaration->p; |
| 1352 | } |
| 1353 | |
| 1354 | static |
| 1355 | struct declaration *ctf_declaration_floating_point_visit(FILE *fd, int depth, |
| 1356 | struct cds_list_head *expressions, |
| 1357 | struct ctf_trace *trace) |
| 1358 | { |
| 1359 | struct ctf_node *expression; |
| 1360 | uint64_t alignment = 1, exp_dig = 0, mant_dig = 0, |
| 1361 | byte_order = trace->byte_order; |
| 1362 | int has_alignment = 0, has_exp_dig = 0, has_mant_dig = 0; |
| 1363 | struct declaration_float *float_declaration; |
| 1364 | |
| 1365 | cds_list_for_each_entry(expression, expressions, siblings) { |
| 1366 | struct ctf_node *left, *right; |
| 1367 | |
| 1368 | left = _cds_list_first_entry(&expression->u.ctf_expression.left, struct ctf_node, siblings); |
| 1369 | right = _cds_list_first_entry(&expression->u.ctf_expression.right, struct ctf_node, siblings); |
| 1370 | assert(left->u.unary_expression.type == UNARY_STRING); |
| 1371 | if (!strcmp(left->u.unary_expression.u.string, "byte_order")) { |
| 1372 | byte_order = get_byte_order(fd, depth, right, trace); |
| 1373 | if (byte_order < 0) |
| 1374 | return NULL; |
| 1375 | } else if (!strcmp(left->u.unary_expression.u.string, "exp_dig")) { |
| 1376 | if (right->u.unary_expression.type != UNARY_UNSIGNED_CONSTANT) { |
| 1377 | fprintf(fd, "[error] %s: exp_dig: expecting unsigned constant\n", |
| 1378 | __func__); |
| 1379 | return NULL; |
| 1380 | } |
| 1381 | exp_dig = right->u.unary_expression.u.unsigned_constant; |
| 1382 | has_exp_dig = 1; |
| 1383 | } else if (!strcmp(left->u.unary_expression.u.string, "mant_dig")) { |
| 1384 | if (right->u.unary_expression.type != UNARY_UNSIGNED_CONSTANT) { |
| 1385 | fprintf(fd, "[error] %s: mant_dig: expecting unsigned constant\n", |
| 1386 | __func__); |
| 1387 | return NULL; |
| 1388 | } |
| 1389 | mant_dig = right->u.unary_expression.u.unsigned_constant; |
| 1390 | has_mant_dig = 1; |
| 1391 | } else if (!strcmp(left->u.unary_expression.u.string, "align")) { |
| 1392 | if (right->u.unary_expression.type != UNARY_UNSIGNED_CONSTANT) { |
| 1393 | fprintf(fd, "[error] %s: align: expecting unsigned constant\n", |
| 1394 | __func__); |
| 1395 | return NULL; |
| 1396 | } |
| 1397 | alignment = right->u.unary_expression.u.unsigned_constant; |
| 1398 | /* Make sure alignment is a power of two */ |
| 1399 | if (alignment == 0 || (alignment & (alignment - 1)) != 0) { |
| 1400 | fprintf(fd, "[error] %s: align: expecting power of two\n", |
| 1401 | __func__); |
| 1402 | return NULL; |
| 1403 | } |
| 1404 | has_alignment = 1; |
| 1405 | } else { |
| 1406 | fprintf(fd, "[warning] %s: unknown attribute name %s\n", |
| 1407 | __func__, left->u.unary_expression.u.string); |
| 1408 | /* Fall-through after warning */ |
| 1409 | } |
| 1410 | } |
| 1411 | if (!has_mant_dig) { |
| 1412 | fprintf(fd, "[error] %s: missing mant_dig attribute\n", __func__); |
| 1413 | return NULL; |
| 1414 | } |
| 1415 | if (!has_exp_dig) { |
| 1416 | fprintf(fd, "[error] %s: missing exp_dig attribute\n", __func__); |
| 1417 | return NULL; |
| 1418 | } |
| 1419 | if (!has_alignment) { |
| 1420 | if ((mant_dig + exp_dig) % CHAR_BIT) { |
| 1421 | /* bit-packed alignment */ |
| 1422 | alignment = 1; |
| 1423 | } else { |
| 1424 | /* byte-packed alignment */ |
| 1425 | alignment = CHAR_BIT; |
| 1426 | } |
| 1427 | } |
| 1428 | float_declaration = float_declaration_new(mant_dig, exp_dig, |
| 1429 | byte_order, alignment); |
| 1430 | return &float_declaration->p; |
| 1431 | } |
| 1432 | |
| 1433 | static |
| 1434 | struct declaration *ctf_declaration_string_visit(FILE *fd, int depth, |
| 1435 | struct cds_list_head *expressions, |
| 1436 | struct ctf_trace *trace) |
| 1437 | { |
| 1438 | struct ctf_node *expression; |
| 1439 | const char *encoding_c = NULL; |
| 1440 | enum ctf_string_encoding encoding = CTF_STRING_UTF8; |
| 1441 | struct declaration_string *string_declaration; |
| 1442 | |
| 1443 | cds_list_for_each_entry(expression, expressions, siblings) { |
| 1444 | struct ctf_node *left, *right; |
| 1445 | |
| 1446 | left = _cds_list_first_entry(&expression->u.ctf_expression.left, struct ctf_node, siblings); |
| 1447 | right = _cds_list_first_entry(&expression->u.ctf_expression.right, struct ctf_node, siblings); |
| 1448 | assert(left->u.unary_expression.type == UNARY_STRING); |
| 1449 | if (!strcmp(left->u.unary_expression.u.string, "encoding")) { |
| 1450 | if (right->u.unary_expression.type != UNARY_STRING) { |
| 1451 | fprintf(fd, "[error] %s: encoding: expecting string\n", |
| 1452 | __func__); |
| 1453 | return NULL; |
| 1454 | } |
| 1455 | encoding_c = right->u.unary_expression.u.string; |
| 1456 | } else { |
| 1457 | fprintf(fd, "[warning] %s: unknown attribute name %s\n", |
| 1458 | __func__, left->u.unary_expression.u.string); |
| 1459 | /* Fall-through after warning */ |
| 1460 | } |
| 1461 | } |
| 1462 | if (encoding_c && !strcmp(encoding_c, "ASCII")) |
| 1463 | encoding = CTF_STRING_ASCII; |
| 1464 | string_declaration = string_declaration_new(encoding); |
| 1465 | return &string_declaration->p; |
| 1466 | } |
| 1467 | |
| 1468 | |
| 1469 | static |
| 1470 | struct declaration *ctf_type_specifier_list_visit(FILE *fd, |
| 1471 | int depth, struct ctf_node *type_specifier_list, |
| 1472 | struct declaration_scope *declaration_scope, |
| 1473 | struct ctf_trace *trace) |
| 1474 | { |
| 1475 | struct ctf_node *first; |
| 1476 | struct ctf_node *node; |
| 1477 | |
| 1478 | assert(type_specifier_list->type == NODE_TYPE_SPECIFIER_LIST); |
| 1479 | |
| 1480 | first = _cds_list_first_entry(&type_specifier_list->u.type_specifier_list.head, struct ctf_node, siblings); |
| 1481 | |
| 1482 | assert(first->type == NODE_TYPE_SPECIFIER); |
| 1483 | |
| 1484 | node = first->u.type_specifier.node; |
| 1485 | |
| 1486 | switch (first->u.type_specifier.type) { |
| 1487 | case TYPESPEC_FLOATING_POINT: |
| 1488 | return ctf_declaration_floating_point_visit(fd, depth, |
| 1489 | &node->u.floating_point.expressions, trace); |
| 1490 | case TYPESPEC_INTEGER: |
| 1491 | return ctf_declaration_integer_visit(fd, depth, |
| 1492 | &node->u.integer.expressions, trace); |
| 1493 | case TYPESPEC_STRING: |
| 1494 | return ctf_declaration_string_visit(fd, depth, |
| 1495 | &node->u.string.expressions, trace); |
| 1496 | case TYPESPEC_STRUCT: |
| 1497 | return ctf_declaration_struct_visit(fd, depth, |
| 1498 | node->u._struct.name, |
| 1499 | &node->u._struct.declaration_list, |
| 1500 | node->u._struct.has_body, |
| 1501 | &node->u._struct.min_align, |
| 1502 | declaration_scope, |
| 1503 | trace); |
| 1504 | case TYPESPEC_VARIANT: |
| 1505 | return ctf_declaration_variant_visit(fd, depth, |
| 1506 | node->u.variant.name, |
| 1507 | node->u.variant.choice, |
| 1508 | &node->u.variant.declaration_list, |
| 1509 | node->u.variant.has_body, |
| 1510 | declaration_scope, |
| 1511 | trace); |
| 1512 | case TYPESPEC_ENUM: |
| 1513 | return ctf_declaration_enum_visit(fd, depth, |
| 1514 | node->u._enum.enum_id, |
| 1515 | node->u._enum.container_type, |
| 1516 | &node->u._enum.enumerator_list, |
| 1517 | node->u._enum.has_body, |
| 1518 | declaration_scope, |
| 1519 | trace); |
| 1520 | |
| 1521 | case TYPESPEC_VOID: |
| 1522 | case TYPESPEC_CHAR: |
| 1523 | case TYPESPEC_SHORT: |
| 1524 | case TYPESPEC_INT: |
| 1525 | case TYPESPEC_LONG: |
| 1526 | case TYPESPEC_FLOAT: |
| 1527 | case TYPESPEC_DOUBLE: |
| 1528 | case TYPESPEC_SIGNED: |
| 1529 | case TYPESPEC_UNSIGNED: |
| 1530 | case TYPESPEC_BOOL: |
| 1531 | case TYPESPEC_COMPLEX: |
| 1532 | case TYPESPEC_IMAGINARY: |
| 1533 | case TYPESPEC_CONST: |
| 1534 | case TYPESPEC_ID_TYPE: |
| 1535 | return ctf_declaration_type_specifier_visit(fd, depth, |
| 1536 | type_specifier_list, declaration_scope); |
| 1537 | default: |
| 1538 | fprintf(fd, "[error] %s: unexpected node type %d\n", __func__, (int) first->u.type_specifier.type); |
| 1539 | return NULL; |
| 1540 | } |
| 1541 | } |
| 1542 | |
| 1543 | static |
| 1544 | int ctf_event_declaration_visit(FILE *fd, int depth, struct ctf_node *node, struct ctf_event *event, struct ctf_trace *trace) |
| 1545 | { |
| 1546 | int ret = 0; |
| 1547 | |
| 1548 | switch (node->type) { |
| 1549 | case NODE_TYPEDEF: |
| 1550 | ret = ctf_typedef_visit(fd, depth + 1, |
| 1551 | event->declaration_scope, |
| 1552 | node->u._typedef.type_specifier_list, |
| 1553 | &node->u._typedef.type_declarators, |
| 1554 | trace); |
| 1555 | if (ret) |
| 1556 | return ret; |
| 1557 | break; |
| 1558 | case NODE_TYPEALIAS: |
| 1559 | ret = ctf_typealias_visit(fd, depth + 1, |
| 1560 | event->declaration_scope, |
| 1561 | node->u.typealias.target, node->u.typealias.alias, |
| 1562 | trace); |
| 1563 | if (ret) |
| 1564 | return ret; |
| 1565 | break; |
| 1566 | case NODE_CTF_EXPRESSION: |
| 1567 | { |
| 1568 | char *left; |
| 1569 | |
| 1570 | left = concatenate_unary_strings(&node->u.ctf_expression.left); |
| 1571 | if (!strcmp(left, "name")) { |
| 1572 | char *right; |
| 1573 | |
| 1574 | if (CTF_EVENT_FIELD_IS_SET(event, name)) { |
| 1575 | fprintf(fd, "[error] %s: name already declared in event declaration\n", __func__); |
| 1576 | ret = -EPERM; |
| 1577 | goto error; |
| 1578 | } |
| 1579 | right = concatenate_unary_strings(&node->u.ctf_expression.right); |
| 1580 | if (!right) { |
| 1581 | fprintf(fd, "[error] %s: unexpected unary expression for event name\n", __func__); |
| 1582 | ret = -EINVAL; |
| 1583 | goto error; |
| 1584 | } |
| 1585 | event->name = g_quark_from_string(right); |
| 1586 | g_free(right); |
| 1587 | CTF_EVENT_SET_FIELD(event, name); |
| 1588 | } else if (!strcmp(left, "id")) { |
| 1589 | if (CTF_EVENT_FIELD_IS_SET(event, id)) { |
| 1590 | fprintf(fd, "[error] %s: id already declared in event declaration\n", __func__); |
| 1591 | ret = -EPERM; |
| 1592 | goto error; |
| 1593 | } |
| 1594 | ret = get_unary_unsigned(&node->u.ctf_expression.right, &event->id); |
| 1595 | if (ret) { |
| 1596 | fprintf(fd, "[error] %s: unexpected unary expression for event id\n", __func__); |
| 1597 | ret = -EINVAL; |
| 1598 | goto error; |
| 1599 | } |
| 1600 | CTF_EVENT_SET_FIELD(event, id); |
| 1601 | } else if (!strcmp(left, "stream_id")) { |
| 1602 | if (CTF_EVENT_FIELD_IS_SET(event, stream_id)) { |
| 1603 | fprintf(fd, "[error] %s: stream_id already declared in event declaration\n", __func__); |
| 1604 | ret = -EPERM; |
| 1605 | goto error; |
| 1606 | } |
| 1607 | ret = get_unary_unsigned(&node->u.ctf_expression.right, &event->stream_id); |
| 1608 | if (ret) { |
| 1609 | fprintf(fd, "[error] %s: unexpected unary expression for event stream_id\n", __func__); |
| 1610 | ret = -EINVAL; |
| 1611 | goto error; |
| 1612 | } |
| 1613 | event->stream = trace_stream_lookup(trace, event->stream_id); |
| 1614 | if (!event->stream) { |
| 1615 | fprintf(fd, "[error] %s: stream id %" PRIu64 " cannot be found\n", __func__, event->stream_id); |
| 1616 | ret = -EINVAL; |
| 1617 | goto error; |
| 1618 | } |
| 1619 | CTF_EVENT_SET_FIELD(event, stream_id); |
| 1620 | } else if (!strcmp(left, "context")) { |
| 1621 | struct declaration *declaration; |
| 1622 | |
| 1623 | if (event->context_decl) { |
| 1624 | fprintf(fd, "[error] %s: context already declared in event declaration\n", __func__); |
| 1625 | ret = -EINVAL; |
| 1626 | goto error; |
| 1627 | } |
| 1628 | declaration = ctf_type_specifier_list_visit(fd, depth, |
| 1629 | _cds_list_first_entry(&node->u.ctf_expression.right, |
| 1630 | struct ctf_node, siblings), |
| 1631 | event->declaration_scope, trace); |
| 1632 | if (!declaration) { |
| 1633 | ret = -EPERM; |
| 1634 | goto error; |
| 1635 | } |
| 1636 | if (declaration->id != CTF_TYPE_STRUCT) { |
| 1637 | ret = -EPERM; |
| 1638 | goto error; |
| 1639 | } |
| 1640 | event->context_decl = container_of(declaration, struct declaration_struct, p); |
| 1641 | } else if (!strcmp(left, "fields")) { |
| 1642 | struct declaration *declaration; |
| 1643 | |
| 1644 | if (event->fields_decl) { |
| 1645 | fprintf(fd, "[error] %s: fields already declared in event declaration\n", __func__); |
| 1646 | ret = -EINVAL; |
| 1647 | goto error; |
| 1648 | } |
| 1649 | declaration = ctf_type_specifier_list_visit(fd, depth, |
| 1650 | _cds_list_first_entry(&node->u.ctf_expression.right, |
| 1651 | struct ctf_node, siblings), |
| 1652 | event->declaration_scope, trace); |
| 1653 | if (!declaration) { |
| 1654 | ret = -EPERM; |
| 1655 | goto error; |
| 1656 | } |
| 1657 | if (declaration->id != CTF_TYPE_STRUCT) { |
| 1658 | ret = -EPERM; |
| 1659 | goto error; |
| 1660 | } |
| 1661 | event->fields_decl = container_of(declaration, struct declaration_struct, p); |
| 1662 | } else if (!strcmp(left, "loglevel")) { |
| 1663 | int64_t loglevel = -1; |
| 1664 | |
| 1665 | if (CTF_EVENT_FIELD_IS_SET(event, loglevel)) { |
| 1666 | fprintf(fd, "[error] %s: loglevel already declared in event declaration\n", __func__); |
| 1667 | ret = -EPERM; |
| 1668 | goto error; |
| 1669 | } |
| 1670 | ret = get_unary_signed(&node->u.ctf_expression.right, &loglevel); |
| 1671 | if (ret) { |
| 1672 | fprintf(fd, "[error] %s: unexpected unary expression for event loglevel\n", __func__); |
| 1673 | ret = -EINVAL; |
| 1674 | goto error; |
| 1675 | } |
| 1676 | event->loglevel = (int) loglevel; |
| 1677 | CTF_EVENT_SET_FIELD(event, loglevel); |
| 1678 | } else { |
| 1679 | fprintf(fd, "[warning] %s: attribute \"%s\" is unknown in event declaration.\n", __func__, left); |
| 1680 | /* Fall-through after warning */ |
| 1681 | } |
| 1682 | error: |
| 1683 | g_free(left); |
| 1684 | break; |
| 1685 | } |
| 1686 | default: |
| 1687 | return -EPERM; |
| 1688 | /* TODO: declaration specifier should be added. */ |
| 1689 | } |
| 1690 | |
| 1691 | return ret; |
| 1692 | } |
| 1693 | |
| 1694 | static |
| 1695 | int ctf_event_visit(FILE *fd, int depth, struct ctf_node *node, |
| 1696 | struct declaration_scope *parent_declaration_scope, struct ctf_trace *trace) |
| 1697 | { |
| 1698 | int ret = 0; |
| 1699 | struct ctf_node *iter; |
| 1700 | struct ctf_event *event; |
| 1701 | |
| 1702 | event = g_new0(struct ctf_event, 1); |
| 1703 | event->declaration_scope = new_declaration_scope(parent_declaration_scope); |
| 1704 | event->loglevel = -1; |
| 1705 | cds_list_for_each_entry(iter, &node->u.event.declaration_list, siblings) { |
| 1706 | ret = ctf_event_declaration_visit(fd, depth + 1, iter, event, trace); |
| 1707 | if (ret) |
| 1708 | goto error; |
| 1709 | } |
| 1710 | if (!CTF_EVENT_FIELD_IS_SET(event, name)) { |
| 1711 | ret = -EPERM; |
| 1712 | fprintf(fd, "[error] %s: missing name field in event declaration\n", __func__); |
| 1713 | goto error; |
| 1714 | } |
| 1715 | if (!CTF_EVENT_FIELD_IS_SET(event, stream_id)) { |
| 1716 | /* Allow missing stream_id if there is only a single stream */ |
| 1717 | switch (trace->streams->len) { |
| 1718 | case 0: /* Create stream if there was none. */ |
| 1719 | ret = ctf_stream_visit(fd, depth, NULL, trace->root_declaration_scope, trace); |
| 1720 | if (ret) |
| 1721 | goto error; |
| 1722 | /* Fall-through */ |
| 1723 | case 1: |
| 1724 | event->stream_id = 0; |
| 1725 | event->stream = trace_stream_lookup(trace, event->stream_id); |
| 1726 | break; |
| 1727 | default: |
| 1728 | ret = -EPERM; |
| 1729 | fprintf(fd, "[error] %s: missing stream_id field in event declaration\n", __func__); |
| 1730 | goto error; |
| 1731 | } |
| 1732 | } |
| 1733 | /* Allow only one event without id per stream */ |
| 1734 | if (!CTF_EVENT_FIELD_IS_SET(event, id) |
| 1735 | && event->stream->events_by_id->len != 0) { |
| 1736 | ret = -EPERM; |
| 1737 | fprintf(fd, "[error] %s: missing id field in event declaration\n", __func__); |
| 1738 | goto error; |
| 1739 | } |
| 1740 | if (event->stream->events_by_id->len <= event->id) |
| 1741 | g_ptr_array_set_size(event->stream->events_by_id, event->id + 1); |
| 1742 | g_ptr_array_index(event->stream->events_by_id, event->id) = event; |
| 1743 | g_hash_table_insert(event->stream->event_quark_to_id, |
| 1744 | (gpointer) (unsigned long) event->name, |
| 1745 | &event->id); |
| 1746 | return 0; |
| 1747 | |
| 1748 | error: |
| 1749 | if (event->fields_decl) |
| 1750 | declaration_unref(&event->fields_decl->p); |
| 1751 | if (event->context_decl) |
| 1752 | declaration_unref(&event->context_decl->p); |
| 1753 | free_declaration_scope(event->declaration_scope); |
| 1754 | g_free(event); |
| 1755 | return ret; |
| 1756 | } |
| 1757 | |
| 1758 | |
| 1759 | static |
| 1760 | int ctf_stream_declaration_visit(FILE *fd, int depth, struct ctf_node *node, struct ctf_stream_class *stream, struct ctf_trace *trace) |
| 1761 | { |
| 1762 | int ret = 0; |
| 1763 | |
| 1764 | switch (node->type) { |
| 1765 | case NODE_TYPEDEF: |
| 1766 | ret = ctf_typedef_visit(fd, depth + 1, |
| 1767 | stream->declaration_scope, |
| 1768 | node->u._typedef.type_specifier_list, |
| 1769 | &node->u._typedef.type_declarators, |
| 1770 | trace); |
| 1771 | if (ret) |
| 1772 | return ret; |
| 1773 | break; |
| 1774 | case NODE_TYPEALIAS: |
| 1775 | ret = ctf_typealias_visit(fd, depth + 1, |
| 1776 | stream->declaration_scope, |
| 1777 | node->u.typealias.target, node->u.typealias.alias, |
| 1778 | trace); |
| 1779 | if (ret) |
| 1780 | return ret; |
| 1781 | break; |
| 1782 | case NODE_CTF_EXPRESSION: |
| 1783 | { |
| 1784 | char *left; |
| 1785 | |
| 1786 | left = concatenate_unary_strings(&node->u.ctf_expression.left); |
| 1787 | if (!strcmp(left, "id")) { |
| 1788 | if (CTF_STREAM_FIELD_IS_SET(stream, stream_id)) { |
| 1789 | fprintf(fd, "[error] %s: id already declared in stream declaration\n", __func__); |
| 1790 | ret = -EPERM; |
| 1791 | goto error; |
| 1792 | } |
| 1793 | ret = get_unary_unsigned(&node->u.ctf_expression.right, &stream->stream_id); |
| 1794 | if (ret) { |
| 1795 | fprintf(fd, "[error] %s: unexpected unary expression for stream id\n", __func__); |
| 1796 | ret = -EINVAL; |
| 1797 | goto error; |
| 1798 | } |
| 1799 | CTF_STREAM_SET_FIELD(stream, stream_id); |
| 1800 | } else if (!strcmp(left, "event.header")) { |
| 1801 | struct declaration *declaration; |
| 1802 | |
| 1803 | if (stream->event_header_decl) { |
| 1804 | fprintf(fd, "[error] %s: event.header already declared in stream declaration\n", __func__); |
| 1805 | ret = -EINVAL; |
| 1806 | goto error; |
| 1807 | } |
| 1808 | declaration = ctf_type_specifier_list_visit(fd, depth, |
| 1809 | _cds_list_first_entry(&node->u.ctf_expression.right, |
| 1810 | struct ctf_node, siblings), |
| 1811 | stream->declaration_scope, trace); |
| 1812 | if (!declaration) { |
| 1813 | ret = -EPERM; |
| 1814 | goto error; |
| 1815 | } |
| 1816 | if (declaration->id != CTF_TYPE_STRUCT) { |
| 1817 | ret = -EPERM; |
| 1818 | goto error; |
| 1819 | } |
| 1820 | stream->event_header_decl = container_of(declaration, struct declaration_struct, p); |
| 1821 | } else if (!strcmp(left, "event.context")) { |
| 1822 | struct declaration *declaration; |
| 1823 | |
| 1824 | if (stream->event_context_decl) { |
| 1825 | fprintf(fd, "[error] %s: event.context already declared in stream declaration\n", __func__); |
| 1826 | ret = -EINVAL; |
| 1827 | goto error; |
| 1828 | } |
| 1829 | declaration = ctf_type_specifier_list_visit(fd, depth, |
| 1830 | _cds_list_first_entry(&node->u.ctf_expression.right, |
| 1831 | struct ctf_node, siblings), |
| 1832 | stream->declaration_scope, trace); |
| 1833 | if (!declaration) { |
| 1834 | ret = -EPERM; |
| 1835 | goto error; |
| 1836 | } |
| 1837 | if (declaration->id != CTF_TYPE_STRUCT) { |
| 1838 | ret = -EPERM; |
| 1839 | goto error; |
| 1840 | } |
| 1841 | stream->event_context_decl = container_of(declaration, struct declaration_struct, p); |
| 1842 | } else if (!strcmp(left, "packet.context")) { |
| 1843 | struct declaration *declaration; |
| 1844 | |
| 1845 | if (stream->packet_context_decl) { |
| 1846 | fprintf(fd, "[error] %s: packet.context already declared in stream declaration\n", __func__); |
| 1847 | ret = -EINVAL; |
| 1848 | goto error; |
| 1849 | } |
| 1850 | declaration = ctf_type_specifier_list_visit(fd, depth, |
| 1851 | _cds_list_first_entry(&node->u.ctf_expression.right, |
| 1852 | struct ctf_node, siblings), |
| 1853 | stream->declaration_scope, trace); |
| 1854 | if (!declaration) { |
| 1855 | ret = -EPERM; |
| 1856 | goto error; |
| 1857 | } |
| 1858 | if (declaration->id != CTF_TYPE_STRUCT) { |
| 1859 | ret = -EPERM; |
| 1860 | goto error; |
| 1861 | } |
| 1862 | stream->packet_context_decl = container_of(declaration, struct declaration_struct, p); |
| 1863 | } else { |
| 1864 | fprintf(fd, "[warning] %s: attribute \"%s\" is unknown in stream declaration.\n", __func__, left); |
| 1865 | /* Fall-through after warning */ |
| 1866 | } |
| 1867 | |
| 1868 | error: |
| 1869 | g_free(left); |
| 1870 | break; |
| 1871 | } |
| 1872 | default: |
| 1873 | return -EPERM; |
| 1874 | /* TODO: declaration specifier should be added. */ |
| 1875 | } |
| 1876 | |
| 1877 | return ret; |
| 1878 | } |
| 1879 | |
| 1880 | static |
| 1881 | int ctf_stream_visit(FILE *fd, int depth, struct ctf_node *node, |
| 1882 | struct declaration_scope *parent_declaration_scope, struct ctf_trace *trace) |
| 1883 | { |
| 1884 | int ret = 0; |
| 1885 | struct ctf_node *iter; |
| 1886 | struct ctf_stream_class *stream; |
| 1887 | |
| 1888 | stream = g_new0(struct ctf_stream_class, 1); |
| 1889 | stream->declaration_scope = new_declaration_scope(parent_declaration_scope); |
| 1890 | stream->events_by_id = g_ptr_array_new(); |
| 1891 | stream->event_quark_to_id = g_hash_table_new(g_direct_hash, g_direct_equal); |
| 1892 | stream->streams = g_ptr_array_new(); |
| 1893 | if (node) { |
| 1894 | cds_list_for_each_entry(iter, &node->u.stream.declaration_list, siblings) { |
| 1895 | ret = ctf_stream_declaration_visit(fd, depth + 1, iter, stream, trace); |
| 1896 | if (ret) |
| 1897 | goto error; |
| 1898 | } |
| 1899 | } |
| 1900 | if (CTF_STREAM_FIELD_IS_SET(stream, stream_id)) { |
| 1901 | /* check that packet header has stream_id field. */ |
| 1902 | if (!trace->packet_header_decl |
| 1903 | || struct_declaration_lookup_field_index(trace->packet_header_decl, g_quark_from_static_string("stream_id")) < 0) { |
| 1904 | ret = -EPERM; |
| 1905 | fprintf(fd, "[error] %s: missing stream_id field in packet header declaration, but stream_id attribute is declared for stream.\n", __func__); |
| 1906 | goto error; |
| 1907 | } |
| 1908 | } else { |
| 1909 | /* Allow only one id-less stream */ |
| 1910 | if (trace->streams->len != 0) { |
| 1911 | ret = -EPERM; |
| 1912 | fprintf(fd, "[error] %s: missing id field in stream declaration\n", __func__); |
| 1913 | goto error; |
| 1914 | } |
| 1915 | stream->stream_id = 0; |
| 1916 | } |
| 1917 | if (trace->streams->len <= stream->stream_id) |
| 1918 | g_ptr_array_set_size(trace->streams, stream->stream_id + 1); |
| 1919 | g_ptr_array_index(trace->streams, stream->stream_id) = stream; |
| 1920 | stream->trace = trace; |
| 1921 | |
| 1922 | return 0; |
| 1923 | |
| 1924 | error: |
| 1925 | if (stream->event_header_decl) |
| 1926 | declaration_unref(&stream->event_header_decl->p); |
| 1927 | if (stream->event_context_decl) |
| 1928 | declaration_unref(&stream->event_context_decl->p); |
| 1929 | if (stream->packet_context_decl) |
| 1930 | declaration_unref(&stream->packet_context_decl->p); |
| 1931 | g_ptr_array_free(stream->streams, TRUE); |
| 1932 | g_ptr_array_free(stream->events_by_id, TRUE); |
| 1933 | g_hash_table_destroy(stream->event_quark_to_id); |
| 1934 | free_declaration_scope(stream->declaration_scope); |
| 1935 | g_free(stream); |
| 1936 | return ret; |
| 1937 | } |
| 1938 | |
| 1939 | static |
| 1940 | int ctf_trace_declaration_visit(FILE *fd, int depth, struct ctf_node *node, struct ctf_trace *trace) |
| 1941 | { |
| 1942 | int ret = 0; |
| 1943 | |
| 1944 | switch (node->type) { |
| 1945 | case NODE_TYPEDEF: |
| 1946 | ret = ctf_typedef_visit(fd, depth + 1, |
| 1947 | trace->declaration_scope, |
| 1948 | node->u._typedef.type_specifier_list, |
| 1949 | &node->u._typedef.type_declarators, |
| 1950 | trace); |
| 1951 | if (ret) |
| 1952 | return ret; |
| 1953 | break; |
| 1954 | case NODE_TYPEALIAS: |
| 1955 | ret = ctf_typealias_visit(fd, depth + 1, |
| 1956 | trace->declaration_scope, |
| 1957 | node->u.typealias.target, node->u.typealias.alias, |
| 1958 | trace); |
| 1959 | if (ret) |
| 1960 | return ret; |
| 1961 | break; |
| 1962 | case NODE_CTF_EXPRESSION: |
| 1963 | { |
| 1964 | char *left; |
| 1965 | |
| 1966 | left = concatenate_unary_strings(&node->u.ctf_expression.left); |
| 1967 | if (!strcmp(left, "major")) { |
| 1968 | if (CTF_TRACE_FIELD_IS_SET(trace, major)) { |
| 1969 | fprintf(fd, "[error] %s: major already declared in trace declaration\n", __func__); |
| 1970 | ret = -EPERM; |
| 1971 | goto error; |
| 1972 | } |
| 1973 | ret = get_unary_unsigned(&node->u.ctf_expression.right, &trace->major); |
| 1974 | if (ret) { |
| 1975 | fprintf(fd, "[error] %s: unexpected unary expression for trace major number\n", __func__); |
| 1976 | ret = -EINVAL; |
| 1977 | goto error; |
| 1978 | } |
| 1979 | CTF_TRACE_SET_FIELD(trace, major); |
| 1980 | } else if (!strcmp(left, "minor")) { |
| 1981 | if (CTF_TRACE_FIELD_IS_SET(trace, minor)) { |
| 1982 | fprintf(fd, "[error] %s: minor already declared in trace declaration\n", __func__); |
| 1983 | ret = -EPERM; |
| 1984 | goto error; |
| 1985 | } |
| 1986 | ret = get_unary_unsigned(&node->u.ctf_expression.right, &trace->minor); |
| 1987 | if (ret) { |
| 1988 | fprintf(fd, "[error] %s: unexpected unary expression for trace minor number\n", __func__); |
| 1989 | ret = -EINVAL; |
| 1990 | goto error; |
| 1991 | } |
| 1992 | CTF_TRACE_SET_FIELD(trace, minor); |
| 1993 | } else if (!strcmp(left, "uuid")) { |
| 1994 | uuid_t uuid; |
| 1995 | |
| 1996 | ret = get_unary_uuid(&node->u.ctf_expression.right, &uuid); |
| 1997 | if (ret) { |
| 1998 | fprintf(fd, "[error] %s: unexpected unary expression for trace uuid\n", __func__); |
| 1999 | ret = -EINVAL; |
| 2000 | goto error; |
| 2001 | } |
| 2002 | if (CTF_TRACE_FIELD_IS_SET(trace, uuid) |
| 2003 | && uuid_compare(uuid, trace->uuid)) { |
| 2004 | fprintf(fd, "[error] %s: uuid mismatch\n", __func__); |
| 2005 | ret = -EPERM; |
| 2006 | goto error; |
| 2007 | } else { |
| 2008 | memcpy(trace->uuid, uuid, sizeof(uuid)); |
| 2009 | } |
| 2010 | CTF_TRACE_SET_FIELD(trace, uuid); |
| 2011 | } else if (!strcmp(left, "byte_order")) { |
| 2012 | struct ctf_node *right; |
| 2013 | int byte_order; |
| 2014 | |
| 2015 | right = _cds_list_first_entry(&node->u.ctf_expression.right, struct ctf_node, siblings); |
| 2016 | byte_order = get_trace_byte_order(fd, depth, right); |
| 2017 | if (byte_order < 0) |
| 2018 | return -EINVAL; |
| 2019 | |
| 2020 | if (CTF_TRACE_FIELD_IS_SET(trace, byte_order) |
| 2021 | && byte_order != trace->byte_order) { |
| 2022 | fprintf(fd, "[error] %s: endianness mismatch\n", __func__); |
| 2023 | ret = -EPERM; |
| 2024 | goto error; |
| 2025 | } else { |
| 2026 | if (byte_order != trace->byte_order) { |
| 2027 | trace->byte_order = byte_order; |
| 2028 | /* |
| 2029 | * We need to restart |
| 2030 | * construction of the |
| 2031 | * intermediate representation. |
| 2032 | */ |
| 2033 | trace->field_mask = 0; |
| 2034 | CTF_TRACE_SET_FIELD(trace, byte_order); |
| 2035 | ret = -EINTR; |
| 2036 | goto error; |
| 2037 | } |
| 2038 | } |
| 2039 | CTF_TRACE_SET_FIELD(trace, byte_order); |
| 2040 | } else if (!strcmp(left, "packet.header")) { |
| 2041 | struct declaration *declaration; |
| 2042 | |
| 2043 | if (trace->packet_header_decl) { |
| 2044 | fprintf(fd, "[error] %s: packet.header already declared in trace declaration\n", __func__); |
| 2045 | ret = -EINVAL; |
| 2046 | goto error; |
| 2047 | } |
| 2048 | declaration = ctf_type_specifier_list_visit(fd, depth, |
| 2049 | _cds_list_first_entry(&node->u.ctf_expression.right, |
| 2050 | struct ctf_node, siblings), |
| 2051 | trace->declaration_scope, trace); |
| 2052 | if (!declaration) { |
| 2053 | ret = -EPERM; |
| 2054 | goto error; |
| 2055 | } |
| 2056 | if (declaration->id != CTF_TYPE_STRUCT) { |
| 2057 | ret = -EPERM; |
| 2058 | goto error; |
| 2059 | } |
| 2060 | trace->packet_header_decl = container_of(declaration, struct declaration_struct, p); |
| 2061 | } else { |
| 2062 | fprintf(fd, "[warning] %s: attribute \"%s\" is unknown in trace declaration.\n", __func__, left); |
| 2063 | } |
| 2064 | |
| 2065 | error: |
| 2066 | g_free(left); |
| 2067 | break; |
| 2068 | } |
| 2069 | default: |
| 2070 | return -EPERM; |
| 2071 | /* TODO: declaration specifier should be added. */ |
| 2072 | } |
| 2073 | |
| 2074 | return ret; |
| 2075 | } |
| 2076 | |
| 2077 | static |
| 2078 | int ctf_trace_visit(FILE *fd, int depth, struct ctf_node *node, struct ctf_trace *trace) |
| 2079 | { |
| 2080 | int ret = 0; |
| 2081 | struct ctf_node *iter; |
| 2082 | |
| 2083 | if (trace->declaration_scope) |
| 2084 | return -EEXIST; |
| 2085 | trace->declaration_scope = new_declaration_scope(trace->root_declaration_scope); |
| 2086 | trace->streams = g_ptr_array_new(); |
| 2087 | cds_list_for_each_entry(iter, &node->u.trace.declaration_list, siblings) { |
| 2088 | ret = ctf_trace_declaration_visit(fd, depth + 1, iter, trace); |
| 2089 | if (ret) |
| 2090 | goto error; |
| 2091 | } |
| 2092 | if (!CTF_TRACE_FIELD_IS_SET(trace, major)) { |
| 2093 | ret = -EPERM; |
| 2094 | fprintf(fd, "[error] %s: missing major field in trace declaration\n", __func__); |
| 2095 | goto error; |
| 2096 | } |
| 2097 | if (!CTF_TRACE_FIELD_IS_SET(trace, minor)) { |
| 2098 | ret = -EPERM; |
| 2099 | fprintf(fd, "[error] %s: missing minor field in trace declaration\n", __func__); |
| 2100 | goto error; |
| 2101 | } |
| 2102 | if (!CTF_TRACE_FIELD_IS_SET(trace, uuid)) { |
| 2103 | ret = -EPERM; |
| 2104 | fprintf(fd, "[error] %s: missing uuid field in trace declaration\n", __func__); |
| 2105 | goto error; |
| 2106 | } |
| 2107 | if (!CTF_TRACE_FIELD_IS_SET(trace, byte_order)) { |
| 2108 | ret = -EPERM; |
| 2109 | fprintf(fd, "[error] %s: missing byte_order field in trace declaration\n", __func__); |
| 2110 | goto error; |
| 2111 | } |
| 2112 | |
| 2113 | if (!CTF_TRACE_FIELD_IS_SET(trace, byte_order)) { |
| 2114 | /* check that the packet header contains a "magic" field */ |
| 2115 | if (!trace->packet_header_decl |
| 2116 | || struct_declaration_lookup_field_index(trace->packet_header_decl, g_quark_from_static_string("magic")) < 0) { |
| 2117 | ret = -EPERM; |
| 2118 | fprintf(fd, "[error] %s: missing both byte_order and packet header magic number in trace declaration\n", __func__); |
| 2119 | goto error; |
| 2120 | } |
| 2121 | } |
| 2122 | return 0; |
| 2123 | |
| 2124 | error: |
| 2125 | if (trace->packet_header_decl) { |
| 2126 | declaration_unref(&trace->packet_header_decl->p); |
| 2127 | trace->packet_header_decl = NULL; |
| 2128 | } |
| 2129 | g_ptr_array_free(trace->streams, TRUE); |
| 2130 | free_declaration_scope(trace->declaration_scope); |
| 2131 | trace->declaration_scope = NULL; |
| 2132 | return ret; |
| 2133 | } |
| 2134 | |
| 2135 | static |
| 2136 | int ctf_clock_declaration_visit(FILE *fd, int depth, struct ctf_node *node, |
| 2137 | struct ctf_clock *clock, struct ctf_trace *trace) |
| 2138 | { |
| 2139 | int ret = 0; |
| 2140 | |
| 2141 | switch (node->type) { |
| 2142 | case NODE_CTF_EXPRESSION: |
| 2143 | { |
| 2144 | char *left; |
| 2145 | |
| 2146 | left = concatenate_unary_strings(&node->u.ctf_expression.left); |
| 2147 | if (!strcmp(left, "name")) { |
| 2148 | char *right; |
| 2149 | |
| 2150 | if (CTF_CLOCK_FIELD_IS_SET(clock, name)) { |
| 2151 | fprintf(fd, "[error] %s: name already declared in clock declaration\n", __func__); |
| 2152 | ret = -EPERM; |
| 2153 | goto error; |
| 2154 | } |
| 2155 | right = concatenate_unary_strings(&node->u.ctf_expression.right); |
| 2156 | if (!right) { |
| 2157 | fprintf(fd, "[error] %s: unexpected unary expression for clock name\n", __func__); |
| 2158 | ret = -EINVAL; |
| 2159 | goto error; |
| 2160 | } |
| 2161 | clock->name = g_quark_from_string(right); |
| 2162 | g_free(right); |
| 2163 | CTF_CLOCK_SET_FIELD(clock, name); |
| 2164 | } else if (!strcmp(left, "uuid")) { |
| 2165 | char *right; |
| 2166 | |
| 2167 | if (clock->uuid) { |
| 2168 | fprintf(fd, "[error] %s: uuid already declared in clock declaration\n", __func__); |
| 2169 | ret = -EPERM; |
| 2170 | goto error; |
| 2171 | } |
| 2172 | right = concatenate_unary_strings(&node->u.ctf_expression.right); |
| 2173 | if (!right) { |
| 2174 | fprintf(fd, "[error] %s: unexpected unary expression for clock uuid\n", __func__); |
| 2175 | ret = -EINVAL; |
| 2176 | goto error; |
| 2177 | } |
| 2178 | clock->uuid = g_quark_from_string(right); |
| 2179 | g_free(right); |
| 2180 | } else if (!strcmp(left, "description")) { |
| 2181 | char *right; |
| 2182 | |
| 2183 | if (clock->description) { |
| 2184 | fprintf(fd, "[warning] %s: duplicated clock description\n", __func__); |
| 2185 | goto error; /* ret is 0, so not an actual error, just warn. */ |
| 2186 | } |
| 2187 | right = concatenate_unary_strings(&node->u.ctf_expression.right); |
| 2188 | if (!right) { |
| 2189 | fprintf(fd, "[warning] %s: unexpected unary expression for clock description\n", __func__); |
| 2190 | goto error; /* ret is 0, so not an actual error, just warn. */ |
| 2191 | } |
| 2192 | clock->description = right; |
| 2193 | } else if (!strcmp(left, "freq")) { |
| 2194 | if (CTF_CLOCK_FIELD_IS_SET(clock, freq)) { |
| 2195 | fprintf(fd, "[error] %s: freq already declared in clock declaration\n", __func__); |
| 2196 | ret = -EPERM; |
| 2197 | goto error; |
| 2198 | } |
| 2199 | ret = get_unary_unsigned(&node->u.ctf_expression.right, &clock->freq); |
| 2200 | if (ret) { |
| 2201 | fprintf(fd, "[error] %s: unexpected unary expression for clock freq\n", __func__); |
| 2202 | ret = -EINVAL; |
| 2203 | goto error; |
| 2204 | } |
| 2205 | CTF_CLOCK_SET_FIELD(clock, freq); |
| 2206 | } else if (!strcmp(left, "precision")) { |
| 2207 | if (clock->precision) { |
| 2208 | fprintf(fd, "[error] %s: precision already declared in clock declaration\n", __func__); |
| 2209 | ret = -EPERM; |
| 2210 | goto error; |
| 2211 | } |
| 2212 | ret = get_unary_unsigned(&node->u.ctf_expression.right, &clock->precision); |
| 2213 | if (ret) { |
| 2214 | fprintf(fd, "[error] %s: unexpected unary expression for clock precision\n", __func__); |
| 2215 | ret = -EINVAL; |
| 2216 | goto error; |
| 2217 | } |
| 2218 | } else if (!strcmp(left, "offset_s")) { |
| 2219 | if (clock->offset_s) { |
| 2220 | fprintf(fd, "[error] %s: offset_s already declared in clock declaration\n", __func__); |
| 2221 | ret = -EPERM; |
| 2222 | goto error; |
| 2223 | } |
| 2224 | ret = get_unary_unsigned(&node->u.ctf_expression.right, &clock->offset_s); |
| 2225 | if (ret) { |
| 2226 | fprintf(fd, "[error] %s: unexpected unary expression for clock offset_s\n", __func__); |
| 2227 | ret = -EINVAL; |
| 2228 | goto error; |
| 2229 | } |
| 2230 | } else if (!strcmp(left, "offset")) { |
| 2231 | if (clock->offset) { |
| 2232 | fprintf(fd, "[error] %s: offset already declared in clock declaration\n", __func__); |
| 2233 | ret = -EPERM; |
| 2234 | goto error; |
| 2235 | } |
| 2236 | ret = get_unary_unsigned(&node->u.ctf_expression.right, &clock->offset); |
| 2237 | if (ret) { |
| 2238 | fprintf(fd, "[error] %s: unexpected unary expression for clock offset\n", __func__); |
| 2239 | ret = -EINVAL; |
| 2240 | goto error; |
| 2241 | } |
| 2242 | } else if (!strcmp(left, "absolute")) { |
| 2243 | struct ctf_node *right; |
| 2244 | |
| 2245 | right = _cds_list_first_entry(&node->u.ctf_expression.right, struct ctf_node, siblings); |
| 2246 | ret = get_boolean(fd, depth, right); |
| 2247 | if (ret < 0) { |
| 2248 | fprintf(fd, "[error] %s: unexpected \"absolute\" right member\n", __func__); |
| 2249 | ret = -EINVAL; |
| 2250 | goto error; |
| 2251 | } |
| 2252 | clock->absolute = ret; |
| 2253 | } else { |
| 2254 | fprintf(fd, "[warning] %s: attribute \"%s\" is unknown in clock declaration.\n", __func__, left); |
| 2255 | } |
| 2256 | |
| 2257 | error: |
| 2258 | g_free(left); |
| 2259 | break; |
| 2260 | } |
| 2261 | default: |
| 2262 | return -EPERM; |
| 2263 | /* TODO: declaration specifier should be added. */ |
| 2264 | } |
| 2265 | |
| 2266 | return ret; |
| 2267 | } |
| 2268 | |
| 2269 | static |
| 2270 | int ctf_clock_visit(FILE *fd, int depth, struct ctf_node *node, struct ctf_trace *trace) |
| 2271 | { |
| 2272 | int ret = 0; |
| 2273 | struct ctf_node *iter; |
| 2274 | struct ctf_clock *clock; |
| 2275 | |
| 2276 | clock = g_new0(struct ctf_clock, 1); |
| 2277 | /* Default clock frequency is set to 1000000000 */ |
| 2278 | clock->freq = 1000000000ULL; |
| 2279 | cds_list_for_each_entry(iter, &node->u.clock.declaration_list, siblings) { |
| 2280 | ret = ctf_clock_declaration_visit(fd, depth + 1, iter, clock, trace); |
| 2281 | if (ret) |
| 2282 | goto error; |
| 2283 | } |
| 2284 | if (!CTF_CLOCK_FIELD_IS_SET(clock, name)) { |
| 2285 | ret = -EPERM; |
| 2286 | fprintf(fd, "[error] %s: missing namefield in clock declaration\n", __func__); |
| 2287 | goto error; |
| 2288 | } |
| 2289 | if (g_hash_table_size(trace->clocks) > 0) { |
| 2290 | fprintf(stderr, "[error] Only CTF traces with a single clock description are supported by this babeltrace version.\n"); |
| 2291 | ret = -EINVAL; |
| 2292 | goto error; |
| 2293 | } |
| 2294 | trace->single_clock = clock; |
| 2295 | g_hash_table_insert(trace->clocks, (gpointer) (unsigned long) clock->name, clock); |
| 2296 | return 0; |
| 2297 | |
| 2298 | error: |
| 2299 | g_free(clock->description); |
| 2300 | g_free(clock); |
| 2301 | return ret; |
| 2302 | } |
| 2303 | |
| 2304 | static |
| 2305 | void clock_free(gpointer data) |
| 2306 | { |
| 2307 | struct ctf_clock *clock = data; |
| 2308 | |
| 2309 | g_free(clock->description); |
| 2310 | g_free(clock); |
| 2311 | } |
| 2312 | |
| 2313 | static |
| 2314 | int ctf_env_declaration_visit(FILE *fd, int depth, struct ctf_node *node, |
| 2315 | struct ctf_trace *trace) |
| 2316 | { |
| 2317 | int ret = 0; |
| 2318 | struct ctf_tracer_env *env = &trace->env; |
| 2319 | |
| 2320 | switch (node->type) { |
| 2321 | case NODE_CTF_EXPRESSION: |
| 2322 | { |
| 2323 | char *left; |
| 2324 | |
| 2325 | left = concatenate_unary_strings(&node->u.ctf_expression.left); |
| 2326 | if (!strcmp(left, "vpid")) { |
| 2327 | uint64_t v; |
| 2328 | |
| 2329 | if (env->vpid != -1) { |
| 2330 | fprintf(fd, "[error] %s: vpid already declared in env declaration\n", __func__); |
| 2331 | goto error; /* ret is 0, so not an actual error, just warn. */ |
| 2332 | } |
| 2333 | ret = get_unary_unsigned(&node->u.ctf_expression.right, &v); |
| 2334 | if (ret) { |
| 2335 | fprintf(fd, "[error] %s: unexpected unary expression for env vpid\n", __func__); |
| 2336 | goto error; /* ret is 0, so not an actual error, just warn. */ |
| 2337 | } |
| 2338 | env->vpid = (int) v; |
| 2339 | printf_verbose("env.vpid = %d\n", env->vpid); |
| 2340 | } else if (!strcmp(left, "procname")) { |
| 2341 | char *right; |
| 2342 | |
| 2343 | if (env->procname[0]) { |
| 2344 | fprintf(fd, "[warning] %s: duplicated env procname\n", __func__); |
| 2345 | goto error; /* ret is 0, so not an actual error, just warn. */ |
| 2346 | } |
| 2347 | right = concatenate_unary_strings(&node->u.ctf_expression.right); |
| 2348 | if (!right) { |
| 2349 | fprintf(fd, "[warning] %s: unexpected unary expression for env procname\n", __func__); |
| 2350 | goto error; /* ret is 0, so not an actual error, just warn. */ |
| 2351 | } |
| 2352 | strncpy(env->procname, right, TRACER_ENV_LEN); |
| 2353 | env->procname[TRACER_ENV_LEN - 1] = '\0'; |
| 2354 | printf_verbose("env.procname = %s\n", env->procname); |
| 2355 | } else if (!strcmp(left, "domain")) { |
| 2356 | char *right; |
| 2357 | |
| 2358 | if (env->domain[0]) { |
| 2359 | fprintf(fd, "[warning] %s: duplicated env domain\n", __func__); |
| 2360 | goto error; /* ret is 0, so not an actual error, just warn. */ |
| 2361 | } |
| 2362 | right = concatenate_unary_strings(&node->u.ctf_expression.right); |
| 2363 | if (!right) { |
| 2364 | fprintf(fd, "[warning] %s: unexpected unary expression for env domain\n", __func__); |
| 2365 | goto error; /* ret is 0, so not an actual error, just warn. */ |
| 2366 | } |
| 2367 | strncpy(env->domain, right, TRACER_ENV_LEN); |
| 2368 | env->domain[TRACER_ENV_LEN - 1] = '\0'; |
| 2369 | printf_verbose("env.domain = %s\n", env->domain); |
| 2370 | } else if (!strcmp(left, "sysname")) { |
| 2371 | char *right; |
| 2372 | |
| 2373 | if (env->sysname[0]) { |
| 2374 | fprintf(fd, "[warning] %s: duplicated env sysname\n", __func__); |
| 2375 | goto error; /* ret is 0, so not an actual error, just warn. */ |
| 2376 | } |
| 2377 | right = concatenate_unary_strings(&node->u.ctf_expression.right); |
| 2378 | if (!right) { |
| 2379 | fprintf(fd, "[warning] %s: unexpected unary expression for env sysname\n", __func__); |
| 2380 | goto error; /* ret is 0, so not an actual error, just warn. */ |
| 2381 | } |
| 2382 | strncpy(env->sysname, right, TRACER_ENV_LEN); |
| 2383 | env->sysname[TRACER_ENV_LEN - 1] = '\0'; |
| 2384 | printf_verbose("env.sysname = %s\n", env->sysname); |
| 2385 | } else if (!strcmp(left, "release")) { |
| 2386 | char *right; |
| 2387 | |
| 2388 | if (env->release[0]) { |
| 2389 | fprintf(fd, "[warning] %s: duplicated env release\n", __func__); |
| 2390 | goto error; /* ret is 0, so not an actual error, just warn. */ |
| 2391 | } |
| 2392 | right = concatenate_unary_strings(&node->u.ctf_expression.right); |
| 2393 | if (!right) { |
| 2394 | fprintf(fd, "[warning] %s: unexpected unary expression for env release\n", __func__); |
| 2395 | goto error; /* ret is 0, so not an actual error, just warn. */ |
| 2396 | } |
| 2397 | strncpy(env->release, right, TRACER_ENV_LEN); |
| 2398 | env->release[TRACER_ENV_LEN - 1] = '\0'; |
| 2399 | printf_verbose("env.release = %s\n", env->release); |
| 2400 | } else if (!strcmp(left, "version")) { |
| 2401 | char *right; |
| 2402 | |
| 2403 | if (env->version[0]) { |
| 2404 | fprintf(fd, "[warning] %s: duplicated env version\n", __func__); |
| 2405 | goto error; /* ret is 0, so not an actual error, just warn. */ |
| 2406 | } |
| 2407 | right = concatenate_unary_strings(&node->u.ctf_expression.right); |
| 2408 | if (!right) { |
| 2409 | fprintf(fd, "[warning] %s: unexpected unary expression for env version\n", __func__); |
| 2410 | goto error; /* ret is 0, so not an actual error, just warn. */ |
| 2411 | } |
| 2412 | strncpy(env->version, right, TRACER_ENV_LEN); |
| 2413 | env->version[TRACER_ENV_LEN - 1] = '\0'; |
| 2414 | printf_verbose("env.version = %s\n", env->version); |
| 2415 | } else { |
| 2416 | printf_verbose("%s: attribute \"%s\" is unknown in environment declaration.\n", __func__, left); |
| 2417 | } |
| 2418 | |
| 2419 | error: |
| 2420 | g_free(left); |
| 2421 | break; |
| 2422 | } |
| 2423 | default: |
| 2424 | return -EPERM; |
| 2425 | } |
| 2426 | |
| 2427 | return ret; |
| 2428 | } |
| 2429 | |
| 2430 | static |
| 2431 | int ctf_env_visit(FILE *fd, int depth, struct ctf_node *node, struct ctf_trace *trace) |
| 2432 | { |
| 2433 | int ret = 0; |
| 2434 | struct ctf_node *iter; |
| 2435 | |
| 2436 | trace->env.vpid = -1; |
| 2437 | trace->env.procname[0] = '\0'; |
| 2438 | trace->env.domain[0] = '\0'; |
| 2439 | trace->env.sysname[0] = '\0'; |
| 2440 | trace->env.release[0] = '\0'; |
| 2441 | trace->env.version[0] = '\0'; |
| 2442 | cds_list_for_each_entry(iter, &node->u.env.declaration_list, siblings) { |
| 2443 | ret = ctf_env_declaration_visit(fd, depth + 1, iter, trace); |
| 2444 | if (ret) |
| 2445 | goto error; |
| 2446 | } |
| 2447 | error: |
| 2448 | return 0; |
| 2449 | } |
| 2450 | |
| 2451 | static |
| 2452 | int ctf_root_declaration_visit(FILE *fd, int depth, struct ctf_node *node, struct ctf_trace *trace) |
| 2453 | { |
| 2454 | int ret = 0; |
| 2455 | |
| 2456 | switch (node->type) { |
| 2457 | case NODE_TYPEDEF: |
| 2458 | ret = ctf_typedef_visit(fd, depth + 1, |
| 2459 | trace->root_declaration_scope, |
| 2460 | node->u._typedef.type_specifier_list, |
| 2461 | &node->u._typedef.type_declarators, |
| 2462 | trace); |
| 2463 | if (ret) |
| 2464 | return ret; |
| 2465 | break; |
| 2466 | case NODE_TYPEALIAS: |
| 2467 | ret = ctf_typealias_visit(fd, depth + 1, |
| 2468 | trace->root_declaration_scope, |
| 2469 | node->u.typealias.target, node->u.typealias.alias, |
| 2470 | trace); |
| 2471 | if (ret) |
| 2472 | return ret; |
| 2473 | break; |
| 2474 | case NODE_TYPE_SPECIFIER_LIST: |
| 2475 | { |
| 2476 | struct declaration *declaration; |
| 2477 | |
| 2478 | /* |
| 2479 | * Just add the type specifier to the root scope |
| 2480 | * declaration scope. Release local reference. |
| 2481 | */ |
| 2482 | declaration = ctf_type_specifier_list_visit(fd, depth + 1, |
| 2483 | node, trace->root_declaration_scope, trace); |
| 2484 | if (!declaration) |
| 2485 | return -ENOMEM; |
| 2486 | declaration_unref(declaration); |
| 2487 | break; |
| 2488 | } |
| 2489 | default: |
| 2490 | return -EPERM; |
| 2491 | } |
| 2492 | |
| 2493 | return 0; |
| 2494 | } |
| 2495 | |
| 2496 | /* TODO: missing metadata "destroy" (memory leak) */ |
| 2497 | int ctf_visitor_construct_metadata(FILE *fd, int depth, struct ctf_node *node, |
| 2498 | struct ctf_trace *trace, int byte_order) |
| 2499 | { |
| 2500 | int ret = 0; |
| 2501 | struct ctf_node *iter; |
| 2502 | int env_clock_done = 0; |
| 2503 | |
| 2504 | printf_verbose("CTF visitor: metadata construction... "); |
| 2505 | trace->byte_order = byte_order; |
| 2506 | trace->clocks = g_hash_table_new_full(g_direct_hash, g_direct_equal, |
| 2507 | NULL, clock_free); |
| 2508 | |
| 2509 | retry: |
| 2510 | trace->root_declaration_scope = new_declaration_scope(NULL); |
| 2511 | |
| 2512 | switch (node->type) { |
| 2513 | case NODE_ROOT: |
| 2514 | if (!env_clock_done) { |
| 2515 | /* |
| 2516 | * declarations need to query clock hash table, |
| 2517 | * so clock need to be treated first. |
| 2518 | */ |
| 2519 | cds_list_for_each_entry(iter, &node->u.root.clock, siblings) { |
| 2520 | ret = ctf_clock_visit(fd, depth + 1, iter, |
| 2521 | trace); |
| 2522 | if (ret) { |
| 2523 | fprintf(fd, "[error] %s: clock declaration error\n", __func__); |
| 2524 | goto error; |
| 2525 | } |
| 2526 | } |
| 2527 | env_clock_done = 1; |
| 2528 | } |
| 2529 | cds_list_for_each_entry(iter, &node->u.root.declaration_list, |
| 2530 | siblings) { |
| 2531 | ret = ctf_root_declaration_visit(fd, depth + 1, iter, trace); |
| 2532 | if (ret) { |
| 2533 | fprintf(fd, "[error] %s: root declaration error\n", __func__); |
| 2534 | goto error; |
| 2535 | } |
| 2536 | } |
| 2537 | cds_list_for_each_entry(iter, &node->u.root.trace, siblings) { |
| 2538 | ret = ctf_trace_visit(fd, depth + 1, iter, trace); |
| 2539 | if (ret == -EINTR) { |
| 2540 | free_declaration_scope(trace->root_declaration_scope); |
| 2541 | /* |
| 2542 | * Need to restart creation of type |
| 2543 | * definitions, aliases and |
| 2544 | * trace header declarations. |
| 2545 | */ |
| 2546 | goto retry; |
| 2547 | } |
| 2548 | if (ret) { |
| 2549 | fprintf(fd, "[error] %s: trace declaration error\n", __func__); |
| 2550 | goto error; |
| 2551 | } |
| 2552 | } |
| 2553 | if (!trace->streams) { |
| 2554 | fprintf(fd, "[error] %s: missing trace declaration\n", __func__); |
| 2555 | ret = -EINVAL; |
| 2556 | goto error; |
| 2557 | } |
| 2558 | cds_list_for_each_entry(iter, &node->u.root.env, siblings) { |
| 2559 | ret = ctf_env_visit(fd, depth + 1, iter, trace); |
| 2560 | if (ret) { |
| 2561 | fprintf(fd, "[error] %s: env declaration error\n", __func__); |
| 2562 | goto error; |
| 2563 | } |
| 2564 | } |
| 2565 | cds_list_for_each_entry(iter, &node->u.root.stream, siblings) { |
| 2566 | ret = ctf_stream_visit(fd, depth + 1, iter, |
| 2567 | trace->root_declaration_scope, trace); |
| 2568 | if (ret) { |
| 2569 | fprintf(fd, "[error] %s: stream declaration error\n", __func__); |
| 2570 | goto error; |
| 2571 | } |
| 2572 | } |
| 2573 | cds_list_for_each_entry(iter, &node->u.root.event, siblings) { |
| 2574 | ret = ctf_event_visit(fd, depth + 1, iter, |
| 2575 | trace->root_declaration_scope, trace); |
| 2576 | if (ret) { |
| 2577 | fprintf(fd, "[error] %s: event declaration error\n", __func__); |
| 2578 | goto error; |
| 2579 | } |
| 2580 | } |
| 2581 | break; |
| 2582 | case NODE_UNKNOWN: |
| 2583 | default: |
| 2584 | fprintf(fd, "[error] %s: unknown node type %d\n", __func__, |
| 2585 | (int) node->type); |
| 2586 | ret = -EINVAL; |
| 2587 | goto error; |
| 2588 | } |
| 2589 | printf_verbose("done.\n"); |
| 2590 | return ret; |
| 2591 | |
| 2592 | error: |
| 2593 | free_declaration_scope(trace->root_declaration_scope); |
| 2594 | g_hash_table_destroy(trace->clocks); |
| 2595 | return ret; |
| 2596 | } |