dll/win32/dbghelp/type.c

   1 /*
   2  * File types.c - management of types (hierarchical tree)
   3  *
   4  * Copyright (C) 1997, Eric Youngdale.
   5  *               2004, Eric Pouech.
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  *
  21  * Note: This really doesn't do much at the moment, but it forms the framework
  22  * upon which full support for datatype handling will eventually be built.
  23  */
  24
  25 #define NONAMELESSUNION
  26
  27 #include "config.h"
  28 #include <stdlib.h>
  29 #include <stdarg.h>
  30 #include <assert.h>
  31
  32 #include "windef.h"
  33 #include "winbase.h"
  34 #include "winnls.h"
  35 #include "wine/debug.h"
  36 #include "dbghelp_private.h"
  37
  38 WINE_DEFAULT_DEBUG_CHANNEL(dbghelp);
  39 WINE_DECLARE_DEBUG_CHANNEL(dbghelp_symt);
  40
  41 static const char* symt_get_tag_str(DWORD tag)
  42 {
  43     switch (tag)
  44     {
  45     case SymTagNull:                    return "SymTagNull";
  46     case SymTagExe:                     return "SymTagExe";
  47     case SymTagCompiland:               return "SymTagCompiland";
  48     case SymTagCompilandDetails:        return "SymTagCompilandDetails";
  49     case SymTagCompilandEnv:            return "SymTagCompilandEnv";
  50     case SymTagFunction:                return "SymTagFunction";
  51     case SymTagBlock:                   return "SymTagBlock";
  52     case SymTagData:                    return "SymTagData";
  53     case SymTagAnnotation:              return "SymTagAnnotation";
  54     case SymTagLabel:                   return "SymTagLabel";
  55     case SymTagPublicSymbol:            return "SymTagPublicSymbol";
  56     case SymTagUDT:                     return "SymTagUDT";
  57     case SymTagEnum:                    return "SymTagEnum";
  58     case SymTagFunctionType:            return "SymTagFunctionType";
  59     case SymTagPointerType:             return "SymTagPointerType";
  60     case SymTagArrayType:               return "SymTagArrayType";
  61     case SymTagBaseType:                return "SymTagBaseType";
  62     case SymTagTypedef:                 return "SymTagTypedef,";
  63     case SymTagBaseClass:               return "SymTagBaseClass";
  64     case SymTagFriend:                  return "SymTagFriend";
  65     case SymTagFunctionArgType:         return "SymTagFunctionArgType,";
  66     case SymTagFuncDebugStart:          return "SymTagFuncDebugStart,";
  67     case SymTagFuncDebugEnd:            return "SymTagFuncDebugEnd";
  68     case SymTagUsingNamespace:          return "SymTagUsingNamespace,";
  69     case SymTagVTableShape:             return "SymTagVTableShape";
  70     case SymTagVTable:                  return "SymTagVTable";
  71     case SymTagCustom:                  return "SymTagCustom";
  72     case SymTagThunk:                   return "SymTagThunk";
  73     case SymTagCustomType:              return "SymTagCustomType";
  74     case SymTagManagedType:             return "SymTagManagedType";
  75     case SymTagDimension:               return "SymTagDimension";
  76     default:                            return "---";
  77     }
  78 }
  79
  80 const char* symt_get_name(const struct symt* sym)
  81 {
  82     switch (sym->tag)
  83     {
  84     /* lexical tree */
  85     case SymTagData:            return ((const struct symt_data*)sym)->hash_elt.name;
  86     case SymTagFunction:        return ((const struct symt_function*)sym)->hash_elt.name;
  87     case SymTagPublicSymbol:    return ((const struct symt_public*)sym)->hash_elt.name;
  88     case SymTagBaseType:        return ((const struct symt_basic*)sym)->hash_elt.name;
  89     case SymTagLabel:           return ((const struct symt_hierarchy_point*)sym)->hash_elt.name;
  90     case SymTagThunk:           return ((const struct symt_thunk*)sym)->hash_elt.name;
  91     /* hierarchy tree */
  92     case SymTagEnum:            return ((const struct symt_enum*)sym)->name;
  93     case SymTagTypedef:         return ((const struct symt_typedef*)sym)->hash_elt.name;
  94     case SymTagUDT:             return ((const struct symt_udt*)sym)->hash_elt.name;
  95     default:
  96         FIXME("Unsupported sym-tag %s\n", symt_get_tag_str(sym->tag));
  97         /* fall through */
  98     case SymTagArrayType:
  99     case SymTagPointerType:
 100     case SymTagFunctionType:
 101         return NULL;
 102     }
 103 }
 104
 105 static struct symt* symt_find_type_by_name(const struct module* module,
 106                                            enum SymTagEnum sym_tag,
 107                                            const char* typename)
 108 {
 109     void*                       ptr;
 110     struct symt_ht*             type;
 111     struct hash_table_iter      hti;
 112
 113     assert(typename);
 114     assert(module);
 115
 116     hash_table_iter_init(&module->ht_types, &hti, typename);
 117     while ((ptr = hash_table_iter_up(&hti)))
 118     {
 119         type = GET_ENTRY(ptr, struct symt_ht, hash_elt);
 120
 121         if ((sym_tag == SymTagNull || type->symt.tag == sym_tag) &&
 122             type->hash_elt.name && !strcmp(type->hash_elt.name, typename))
 123             return &type->symt;
 124     }
 125     SetLastError(ERROR_INVALID_NAME); /* FIXME ?? */
 126     return NULL;
 127 }
 128
 129 static void symt_add_type(struct module* module, struct symt* symt)
 130 {
 131     struct symt**       p;
 132     p = vector_add(&module->vtypes, &module->pool);
 133     assert(p);
 134     *p = symt;
 135 }
 136
 137 struct symt_basic* symt_new_basic(struct module* module, enum BasicType bt,
 138                                   const char* typename, unsigned size)
 139 {
 140     struct symt_basic*          sym;
 141
 142     if (typename)
 143     {
 144         sym = (struct symt_basic*)symt_find_type_by_name(module, SymTagBaseType,
 145                                                          typename);
 146         if (sym && sym->bt == bt && sym->size == size)
 147             return sym;
 148     }
 149     if ((sym = pool_alloc(&module->pool, sizeof(*sym))))
 150     {
 151         sym->symt.tag = SymTagBaseType;
 152         if (typename)
 153         {
 154             sym->hash_elt.name = pool_strdup(&module->pool, typename);
 155             hash_table_add(&module->ht_types, &sym->hash_elt);
 156         } else sym->hash_elt.name = NULL;
 157         sym->bt = bt;
 158         sym->size = size;
 159         symt_add_type(module, &sym->symt);
 160     }
 161     return sym;
 162 }
 163
 164 struct symt_udt* symt_new_udt(struct module* module, const char* typename,
 165                               unsigned size, enum UdtKind kind)
 166 {
 167     struct symt_udt*            sym;
 168
 169     TRACE_(dbghelp_symt)("Adding udt %s:%s\n",
 170                          debugstr_w(module->module.ModuleName), typename);
 171     if ((sym = pool_alloc(&module->pool, sizeof(*sym))))
 172     {
 173         sym->symt.tag = SymTagUDT;
 174         sym->kind     = kind;
 175         sym->size     = size;
 176         if (typename)
 177         {
 178             sym->hash_elt.name = pool_strdup(&module->pool, typename);
 179             hash_table_add(&module->ht_types, &sym->hash_elt);
 180         } else sym->hash_elt.name = NULL;
 181         vector_init(&sym->vchildren, sizeof(struct symt*), 8);
 182         symt_add_type(module, &sym->symt);
 183     }
 184     return sym;
 185 }
 186
 187 BOOL symt_set_udt_size(struct module* module, struct symt_udt* udt, unsigned size)
 188 {
 189     assert(udt->symt.tag == SymTagUDT);
 190     if (vector_length(&udt->vchildren) != 0)
 191     {
 192         if (udt->size != size)
 193             FIXME_(dbghelp_symt)("Changing size for %s from %u to %u\n",
 194                                  udt->hash_elt.name, udt->size, size);
 195         return TRUE;
 196     }
 197     udt->size = size;
 198     return TRUE;
 199 }
 200
 201 /******************************************************************
 202  *              symt_add_udt_element
 203  *
 204  * add an element to a udt (struct, class, union)
 205  * the size & offset parameters are expressed in bits (not bytes) so that
 206  * we can mix in the single call bytes aligned elements (regular fields) and
 207  * the others (bit fields)
 208  */
 209 BOOL symt_add_udt_element(struct module* module, struct symt_udt* udt_type,
 210                           const char* name, struct symt* elt_type,
 211                           unsigned offset, unsigned size)
 212 {
 213     struct symt_data*   m;
 214     struct symt**       p;
 215
 216     assert(udt_type->symt.tag == SymTagUDT);
 217
 218     TRACE_(dbghelp_symt)("Adding %s to UDT %s\n", name, udt_type->hash_elt.name);
 219     if (name)
 220     {
 221         unsigned int    i;
 222         for (i=0; i<vector_length(&udt_type->vchildren); i++)
 223         {
 224             m = *(struct symt_data**)vector_at(&udt_type->vchildren, i);
 225             assert(m);
 226             assert(m->symt.tag == SymTagData);
 227             if (strcmp(m->hash_elt.name, name) == 0)
 228                 return TRUE;
 229         }
 230     }
 231
 232     if ((m = pool_alloc(&module->pool, sizeof(*m))) == NULL) return FALSE;
 233     memset(m, 0, sizeof(*m));
 234     m->symt.tag      = SymTagData;
 235     m->hash_elt.name = name ? pool_strdup(&module->pool, name) : "";
 236     m->hash_elt.next = NULL;
 237
 238     m->kind            = DataIsMember;
 239     m->container       = &udt_type->symt;
 240     m->type            = elt_type;
 241     m->u.member.offset = offset;
 242     m->u.member.length = ((offset & 7) || (size & 7)) ? size : 0;
 243     p = vector_add(&udt_type->vchildren, &module->pool);
 244     *p = &m->symt;
 245
 246     return TRUE;
 247 }
 248
 249 struct symt_enum* symt_new_enum(struct module* module, const char* typename,
 250                                 struct symt* basetype)
 251 {
 252     struct symt_enum*   sym;
 253
 254     if ((sym = pool_alloc(&module->pool, sizeof(*sym))))
 255     {
 256         sym->symt.tag            = SymTagEnum;
 257         sym->name = (typename) ? pool_strdup(&module->pool, typename) : NULL;
 258         sym->base_type           = basetype;
 259         vector_init(&sym->vchildren, sizeof(struct symt*), 8);
 260     }
 261     return sym;
 262 }
 263
 264 BOOL symt_add_enum_element(struct module* module, struct symt_enum* enum_type,
 265                            const char* name, int value)
 266 {
 267     struct symt_data*   e;
 268     struct symt**       p;
 269
 270     assert(enum_type->symt.tag == SymTagEnum);
 271     e = pool_alloc(&module->pool, sizeof(*e));
 272     if (e == NULL) return FALSE;
 273
 274     e->symt.tag = SymTagData;
 275     e->hash_elt.name = pool_strdup(&module->pool, name);
 276     e->hash_elt.next = NULL;
 277     e->kind = DataIsConstant;
 278     e->container = &enum_type->symt;
 279     e->type = enum_type->base_type;
 280     e->u.value.n1.n2.vt = VT_I4;
 281     e->u.value.n1.n2.n3.lVal = value;
 282
 283     p = vector_add(&enum_type->vchildren, &module->pool);
 284     if (!p) return FALSE; /* FIXME we leak e */
 285     *p = &e->symt;
 286
 287     return TRUE;
 288 }
 289
 290 struct symt_array* symt_new_array(struct module* module, int min, int max,
 291                                   struct symt* base, struct symt* index)
 292 {
 293     struct symt_array*  sym;
 294
 295     if ((sym = pool_alloc(&module->pool, sizeof(*sym))))
 296     {
 297         sym->symt.tag   = SymTagArrayType;
 298         sym->start      = min;
 299         sym->end        = max;
 300         sym->base_type  = base;
 301         sym->index_type = index;
 302         symt_add_type(module, &sym->symt);
 303     }
 304     return sym;
 305 }
 306
 307 struct symt_function_signature* symt_new_function_signature(struct module* module,
 308                                                             struct symt* ret_type,
 309                                                             enum CV_call_e call_conv)
 310 {
 311     struct symt_function_signature*     sym;
 312
 313     if ((sym = pool_alloc(&module->pool, sizeof(*sym))))
 314     {
 315         sym->symt.tag = SymTagFunctionType;
 316         sym->rettype  = ret_type;
 317         vector_init(&sym->vchildren, sizeof(struct symt*), 4);
 318         sym->call_conv = call_conv;
 319         symt_add_type(module, &sym->symt);
 320     }
 321     return sym;
 322 }
 323
 324 BOOL symt_add_function_signature_parameter(struct module* module,
 325                                            struct symt_function_signature* sig_type,
 326                                            struct symt* param)
 327 {
 328     struct symt**                       p;
 329     struct symt_function_arg_type*      arg;
 330
 331     assert(sig_type->symt.tag == SymTagFunctionType);
 332     arg = pool_alloc(&module->pool, sizeof(*arg));
 333     if (!arg) return FALSE;
 334     arg->symt.tag = SymTagFunctionArgType;
 335     arg->arg_type = param;
 336     arg->container = &sig_type->symt;
 337     p = vector_add(&sig_type->vchildren, &module->pool);
 338     if (!p) return FALSE; /* FIXME we leak arg */
 339     *p = &arg->symt;
 340
 341     return TRUE;
 342 }
 343
 344 struct symt_pointer* symt_new_pointer(struct module* module, struct symt* ref_type)
 345 {
 346     struct symt_pointer*        sym;
 347
 348     if ((sym = pool_alloc(&module->pool, sizeof(*sym))))
 349     {
 350         sym->symt.tag = SymTagPointerType;
 351         sym->pointsto = ref_type;
 352         symt_add_type(module, &sym->symt);
 353     }
 354     return sym;
 355 }
 356
 357 struct symt_typedef* symt_new_typedef(struct module* module, struct symt* ref,
 358                                       const char* name)
 359 {
 360     struct symt_typedef* sym;
 361
 362     if ((sym = pool_alloc(&module->pool, sizeof(*sym))))
 363     {
 364         sym->symt.tag = SymTagTypedef;
 365         sym->type     = ref;
 366         sym->hash_elt.name = pool_strdup(&module->pool, name);
 367         hash_table_add(&module->ht_types, &sym->hash_elt);
 368         symt_add_type(module, &sym->symt);
 369     }
 370     return sym;
 371 }
 372
 373 /******************************************************************
 374  *              SymEnumTypes (DBGHELP.@)
 375  *
 376  */
 377 BOOL WINAPI SymEnumTypes(HANDLE hProcess, ULONG64 BaseOfDll,
 378                          PSYM_ENUMERATESYMBOLS_CALLBACK EnumSymbolsCallback,
 379                          PVOID UserContext)
 380 {
 381     struct module_pair  pair;
 382     char                buffer[sizeof(SYMBOL_INFO) + 256];
 383     SYMBOL_INFO*        sym_info = (SYMBOL_INFO*)buffer;
 384     const char*         tmp;
 385     struct symt*        type;
 386     DWORD64             size;
 387     unsigned int        i;
 388
 389     TRACE("(%p %s %p %p)\n",
 390           hProcess, wine_dbgstr_longlong(BaseOfDll), EnumSymbolsCallback,
 391           UserContext);
 392
 393     if (!(pair.pcs = process_find_by_handle(hProcess))) return FALSE;
 394     pair.requested = module_find_by_addr(pair.pcs, BaseOfDll, DMT_UNKNOWN);
 395     if (!module_get_debug(&pair)) return FALSE;
 396
 397     sym_info->SizeOfStruct = sizeof(SYMBOL_INFO);
 398     sym_info->MaxNameLen = sizeof(buffer) - sizeof(SYMBOL_INFO);
 399
 400     for (i=0; i<vector_length(&pair.effective->vtypes); i++)
 401     {
 402         type = *(struct symt**)vector_at(&pair.effective->vtypes, i);
 403         sym_info->TypeIndex = (DWORD)type;
 404         sym_info->info = 0; /* FIXME */
 405         symt_get_info(type, TI_GET_LENGTH, &size);
 406         sym_info->Size = size;
 407         sym_info->ModBase = pair.requested->module.BaseOfImage;
 408         sym_info->Flags = 0; /* FIXME */
 409         sym_info->Value = 0; /* FIXME */
 410         sym_info->Address = 0; /* FIXME */
 411         sym_info->Register = 0; /* FIXME */
 412         sym_info->Scope = 0; /* FIXME */
 413         sym_info->Tag = type->tag;
 414         tmp = symt_get_name(type);
 415         if (tmp)
 416         {
 417             sym_info->NameLen = min(strlen(tmp),sym_info->MaxNameLen-1);
 418             memcpy(sym_info->Name, tmp, sym_info->NameLen);
 419             sym_info->Name[sym_info->NameLen] = '\0';
 420         }
 421         else
 422            sym_info->Name[sym_info->NameLen = 0] = '\0';
 423         if (!EnumSymbolsCallback(sym_info, sym_info->Size, UserContext)) break;
 424     }
 425     return TRUE;
 426 }
 427
 428 struct enum_types_AtoW
 429 {
 430     char                                buffer[sizeof(SYMBOL_INFOW) + 256 * sizeof(WCHAR)];
 431     void*                               user;
 432     PSYM_ENUMERATESYMBOLS_CALLBACKW     callback;
 433 };
 434
 435 static BOOL CALLBACK enum_types_AtoW(PSYMBOL_INFO si, ULONG addr, PVOID _et)
 436 {
 437     struct enum_types_AtoW*     et = _et;
 438     SYMBOL_INFOW*               siW = (SYMBOL_INFOW*)et->buffer;
 439
 440     copy_symbolW(siW, si);
 441     return et->callback(siW, addr, et->user);
 442 }
 443
 444 /******************************************************************
 445  *              SymEnumTypesW (DBGHELP.@)
 446  *
 447  */
 448 BOOL WINAPI SymEnumTypesW(HANDLE hProcess, ULONG64 BaseOfDll,
 449                           PSYM_ENUMERATESYMBOLS_CALLBACKW EnumSymbolsCallback,
 450                           PVOID UserContext)
 451 {
 452     struct enum_types_AtoW     et;
 453
 454     et.callback = EnumSymbolsCallback;
 455     et.user = UserContext;
 456
 457     return SymEnumTypes(hProcess, BaseOfDll, enum_types_AtoW, &et);
 458 }
 459
 460 /******************************************************************
 461  *              symt_get_info
 462  *
 463  * Retrieves information about a symt (either symbol or type)
 464  */
 465 BOOL symt_get_info(const struct symt* type, IMAGEHLP_SYMBOL_TYPE_INFO req,
 466                    void* pInfo)
 467 {
 468     unsigned            len;
 469
 470     if (!type) return FALSE;
 471
 472 /* helper to typecast pInfo to its expected type (_t) */
 473 #define X(_t) (*((_t*)pInfo))
 474
 475     switch (req)
 476     {
 477     case TI_FINDCHILDREN:
 478         {
 479             const struct vector*        v;
 480             struct symt**               pt;
 481             unsigned                    i;
 482             TI_FINDCHILDREN_PARAMS*     tifp = pInfo;
 483
 484             switch (type->tag)
 485             {
 486             case SymTagUDT:          v = &((const struct symt_udt*)type)->vchildren; break;
 487             case SymTagEnum:         v = &((const struct symt_enum*)type)->vchildren; break;
 488             case SymTagFunctionType: v = &((const struct symt_function_signature*)type)->vchildren; break;
 489             case SymTagFunction:     v = &((const struct symt_function*)type)->vchildren; break;
 490             default:
 491                 FIXME("Unsupported sym-tag %s for find-children\n",
 492                       symt_get_tag_str(type->tag));
 493                 return FALSE;
 494             }
 495             for (i = 0; i < tifp->Count; i++)
 496             {
 497                 if (!(pt = vector_at(v, tifp->Start + i))) return FALSE;
 498                 tifp->ChildId[i] = (DWORD)*pt;
 499             }
 500         }
 501         break;
 502
 503     case TI_GET_ADDRESS:
 504         switch (type->tag)
 505         {
 506         case SymTagData:
 507             switch (((const struct symt_data*)type)->kind)
 508             {
 509             case DataIsGlobal:
 510             case DataIsFileStatic:
 511                 X(ULONG64) = ((const struct symt_data*)type)->u.var.offset;
 512                 break;
 513             default: return FALSE;
 514             }
 515             break;
 516         case SymTagFunction:
 517             X(ULONG64) = ((const struct symt_function*)type)->address;
 518             break;
 519         case SymTagPublicSymbol:
 520             X(ULONG64) = ((const struct symt_public*)type)->address;
 521             break;
 522         case SymTagFuncDebugStart:
 523         case SymTagFuncDebugEnd:
 524         case SymTagLabel:
 525             if (!symt_get_info(((const struct symt_hierarchy_point*)type)->parent,
 526                                req, pInfo))
 527                 return FALSE;
 528             X(ULONG64) += ((const struct symt_hierarchy_point*)type)->loc.offset;
 529             break;
 530         case SymTagThunk:
 531             X(ULONG64) = ((const struct symt_thunk*)type)->address;
 532             break;
 533         case SymTagCompiland:
 534             X(ULONG64) = ((const struct symt_compiland*)type)->address;
 535             break;
 536         default:
 537             FIXME("Unsupported sym-tag %s for get-address\n",
 538                   symt_get_tag_str(type->tag));
 539             return FALSE;
 540         }
 541         break;
 542
 543     case TI_GET_BASETYPE:
 544         switch (type->tag)
 545         {
 546         case SymTagBaseType:
 547             X(DWORD) = ((const struct symt_basic*)type)->bt;
 548             break;
 549         case SymTagEnum:
 550             X(DWORD) = btInt;
 551             break;
 552         default:
 553             return FALSE;
 554         }
 555         break;
 556
 557     case TI_GET_BITPOSITION:
 558         if (type->tag == SymTagData &&
 559             ((const struct symt_data*)type)->kind == DataIsMember &&
 560             ((const struct symt_data*)type)->u.member.length != 0)
 561             X(DWORD) = ((const struct symt_data*)type)->u.member.offset & 7;
 562         else return FALSE;
 563         break;
 564
 565     case TI_GET_CHILDRENCOUNT:
 566         switch (type->tag)
 567         {
 568         case SymTagUDT:
 569             X(DWORD) = vector_length(&((const struct symt_udt*)type)->vchildren);
 570             break;
 571         case SymTagEnum:
 572             X(DWORD) = vector_length(&((const struct symt_enum*)type)->vchildren);
 573             break;
 574         case SymTagFunctionType:
 575             X(DWORD) = vector_length(&((const struct symt_function_signature*)type)->vchildren);
 576             break;
 577         case SymTagFunction:
 578             X(DWORD) = vector_length(&((const struct symt_function*)type)->vchildren);
 579             break;
 580         case SymTagPointerType: /* MS does it that way */
 581         case SymTagArrayType: /* MS does it that way */
 582         case SymTagThunk: /* MS does it that way */
 583             X(DWORD) = 0;
 584             break;
 585         default:
 586             FIXME("Unsupported sym-tag %s for get-children-count\n",
 587                   symt_get_tag_str(type->tag));
 588             /* fall through */
 589         case SymTagData:
 590         case SymTagPublicSymbol:
 591         case SymTagBaseType:
 592             return FALSE;
 593         }
 594         break;
 595
 596     case TI_GET_COUNT:
 597         switch (type->tag)
 598         {
 599         case SymTagArrayType:
 600             X(DWORD) = ((const struct symt_array*)type)->end -
 601                 ((const struct symt_array*)type)->start + 1;
 602             break;
 603         case SymTagFunctionType:
 604             /* this seems to be wrong for (future) C++ methods, where 'this' parameter
 605              * should be included in this value (and not in GET_CHILDREN_COUNT)
 606              */
 607             X(DWORD) = vector_length(&((const struct symt_function_signature*)type)->vchildren);
 608             break;
 609         default: return FALSE;
 610         }
 611         break;
 612
 613     case TI_GET_DATAKIND:
 614         if (type->tag != SymTagData) return FALSE;
 615         X(DWORD) = ((const struct symt_data*)type)->kind;
 616         break;
 617
 618     case TI_GET_LENGTH:
 619         switch (type->tag)
 620         {
 621         case SymTagBaseType:
 622             X(DWORD64) = ((const struct symt_basic*)type)->size;
 623             break;
 624         case SymTagFunction:
 625             X(DWORD64) = ((const struct symt_function*)type)->size;
 626             break;
 627         case SymTagPointerType:
 628             X(DWORD64) = sizeof(void*);
 629             break;
 630         case SymTagUDT:
 631             X(DWORD64) = ((const struct symt_udt*)type)->size;
 632             break;
 633         case SymTagEnum:
 634             X(DWORD64) = sizeof(int); /* FIXME: should be size of base-type of enum !!! */
 635             break;
 636         case SymTagData:
 637             if (((const struct symt_data*)type)->kind != DataIsMember ||
 638                 !((const struct symt_data*)type)->u.member.length)
 639                 return FALSE;
 640             X(DWORD64) = ((const struct symt_data*)type)->u.member.length;
 641             break;
 642         case SymTagArrayType:
 643             if (!symt_get_info(((const struct symt_array*)type)->base_type,
 644                                TI_GET_LENGTH, pInfo))
 645                 return FALSE;
 646             X(DWORD64) *= ((const struct symt_array*)type)->end -
 647                 ((const struct symt_array*)type)->start + 1;
 648             break;
 649         case SymTagPublicSymbol:
 650             X(DWORD64) = ((const struct symt_public*)type)->size;
 651             break;
 652         case SymTagTypedef:
 653             return symt_get_info(((const struct symt_typedef*)type)->type, TI_GET_LENGTH, pInfo);
 654         case SymTagThunk:
 655             X(DWORD64) = ((const struct symt_thunk*)type)->size;
 656             break;
 657         case SymTagLabel:
 658             X(DWORD64) = 0;
 659             break;
 660         default:
 661             FIXME("Unsupported sym-tag %s for get-length\n",
 662                   symt_get_tag_str(type->tag));
 663             /* fall through */
 664         case SymTagFunctionType:
 665             return 0;
 666         }
 667         break;
 668
 669     case TI_GET_LEXICALPARENT:
 670         switch (type->tag)
 671         {
 672         case SymTagBlock:
 673             X(DWORD) = (DWORD)((const struct symt_block*)type)->container;
 674             break;
 675         case SymTagData:
 676             X(DWORD) = (DWORD)((const struct symt_data*)type)->container;
 677             break;
 678         case SymTagFunction:
 679             X(DWORD) = (DWORD)((const struct symt_function*)type)->container;
 680             break;
 681         case SymTagThunk:
 682             X(DWORD) = (DWORD)((const struct symt_thunk*)type)->container;
 683             break;
 684         case SymTagFunctionArgType:
 685             X(DWORD) = (DWORD)((const struct symt_function_arg_type*)type)->container;
 686             break;
 687         default:
 688             FIXME("Unsupported sym-tag %s for get-lexical-parent\n",
 689                   symt_get_tag_str(type->tag));
 690             return FALSE;
 691         }
 692         break;
 693
 694     case TI_GET_NESTED:
 695         switch (type->tag)
 696         {
 697         case SymTagUDT:
 698         case SymTagEnum:
 699             X(DWORD) = 0;
 700             break;
 701         default:
 702             return FALSE;
 703         }
 704         break;
 705
 706     case TI_GET_OFFSET:
 707         switch (type->tag)
 708         {
 709         case SymTagData:
 710             switch (((const struct symt_data*)type)->kind)
 711             {
 712             case DataIsParam:
 713             case DataIsLocal:
 714                 X(ULONG) = ((const struct symt_data*)type)->u.var.offset;
 715                 break;
 716             case DataIsMember:
 717                 X(ULONG) = ((const struct symt_data*)type)->u.member.offset >> 3;
 718                 break;
 719             default:
 720                 FIXME("Unknown kind (%u) for get-offset\n",
 721                       ((const struct symt_data*)type)->kind);
 722                 return FALSE;
 723             }
 724             break;
 725         default:
 726             FIXME("Unsupported sym-tag %s for get-offset\n",
 727                   symt_get_tag_str(type->tag));
 728             return FALSE;
 729         }
 730         break;
 731
 732     case TI_GET_SYMNAME:
 733         {
 734             const char* name = symt_get_name(type);
 735             if (!name) return FALSE;
 736             len = MultiByteToWideChar(CP_ACP, 0, name, -1, NULL, 0);
 737             X(WCHAR*) = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
 738             if (!X(WCHAR*)) return FALSE;
 739             MultiByteToWideChar(CP_ACP, 0, name, -1, X(WCHAR*), len);
 740         }
 741         break;
 742
 743     case TI_GET_SYMTAG:
 744         X(DWORD) = type->tag;
 745         break;
 746
 747     case TI_GET_TYPE:
 748     case TI_GET_TYPEID:
 749         switch (type->tag)
 750         {
 751             /* hierarchical => hierarchical */
 752         case SymTagArrayType:
 753             X(DWORD) = (DWORD)((const struct symt_array*)type)->base_type;
 754             break;
 755         case SymTagPointerType:
 756             X(DWORD) = (DWORD)((const struct symt_pointer*)type)->pointsto;
 757             break;
 758         case SymTagFunctionType:
 759             X(DWORD) = (DWORD)((const struct symt_function_signature*)type)->rettype;
 760             break;
 761         case SymTagTypedef:
 762             X(DWORD) = (DWORD)((const struct symt_typedef*)type)->type;
 763             break;
 764             /* lexical => hierarchical */
 765         case SymTagData:
 766             X(DWORD) = (DWORD)((const struct symt_data*)type)->type;
 767             break;
 768         case SymTagFunction:
 769             X(DWORD) = (DWORD)((const struct symt_function*)type)->type;
 770             break;
 771         case SymTagEnum:
 772             X(DWORD) = (DWORD)((const struct symt_enum*)type)->base_type;
 773             break;
 774         case SymTagFunctionArgType:
 775             X(DWORD) = (DWORD)((const struct symt_function_arg_type*)type)->arg_type;
 776             break;
 777         default:
 778             FIXME("Unsupported sym-tag %s for get-type\n",
 779                   symt_get_tag_str(type->tag));
 780         case SymTagPublicSymbol:
 781         case SymTagThunk:
 782         case SymTagLabel:
 783             return FALSE;
 784         }
 785         break;
 786
 787     case TI_GET_UDTKIND:
 788         if (type->tag != SymTagUDT) return FALSE;
 789         X(DWORD) = ((const struct symt_udt*)type)->kind;
 790         break;
 791
 792     case TI_GET_VALUE:
 793         if (type->tag != SymTagData || ((const struct symt_data*)type)->kind != DataIsConstant)
 794             return FALSE;
 795         X(VARIANT) = ((const struct symt_data*)type)->u.value;
 796         break;
 797
 798     case TI_GET_CALLING_CONVENTION:
 799         if (type->tag != SymTagFunctionType) return FALSE;
 800         if (((const struct symt_function_signature*)type)->call_conv == -1)
 801         {
 802             FIXME("No support for calling convention for this signature\n");
 803             X(DWORD) = CV_CALL_FAR_C; /* FIXME */
 804         }
 805         else X(DWORD) = ((const struct symt_function_signature*)type)->call_conv;
 806         break;
 807     case TI_GET_ARRAYINDEXTYPEID:
 808         if (type->tag != SymTagArrayType) return FALSE;
 809         X(DWORD) = (DWORD)((const struct symt_array*)type)->index_type;
 810         break;
 811
 812     case TI_GET_CLASSPARENTID:
 813         /* FIXME: we don't support properly C++ for now, pretend this symbol doesn't
 814          * belong to a parent class
 815          */
 816         return FALSE;
 817
 818 #undef X
 819
 820     case TI_GET_ADDRESSOFFSET:
 821     case TI_GET_SYMINDEX:
 822     case TI_GET_THISADJUST:
 823     case TI_GET_VIRTUALBASECLASS:
 824     case TI_GET_VIRTUALBASEPOINTEROFFSET:
 825     case TI_GET_VIRTUALTABLESHAPEID:
 826     case TI_IS_EQUIV_TO:
 827         FIXME("Unsupported GetInfo request (%u)\n", req);
 828         return FALSE;
 829     default:
 830         FIXME("Unknown GetInfo request (%u)\n", req);
 831         return FALSE;
 832     }
 833
 834     return TRUE;
 835 }
 836
 837 /******************************************************************
 838  *              SymGetTypeInfo (DBGHELP.@)
 839  *
 840  */
 841 BOOL WINAPI SymGetTypeInfo(HANDLE hProcess, DWORD64 ModBase,
 842                            ULONG TypeId, IMAGEHLP_SYMBOL_TYPE_INFO GetType,
 843                            PVOID pInfo)
 844 {
 845     struct module_pair  pair;
 846
 847     pair.pcs = process_find_by_handle(hProcess);
 848     if (!pair.pcs) return FALSE;
 849
 850     pair.requested = module_find_by_addr(pair.pcs, ModBase, DMT_UNKNOWN);
 851     if (!module_get_debug(&pair))
 852     {
 853         FIXME("Someone didn't properly set ModBase (%s)\n", wine_dbgstr_longlong(ModBase));
 854         return FALSE;
 855     }
 856
 857     return symt_get_info((struct symt*)TypeId, GetType, pInfo);
 858 }
 859
 860 /******************************************************************
 861  *              SymGetTypeFromName (DBGHELP.@)
 862  *
 863  */
 864 BOOL WINAPI SymGetTypeFromName(HANDLE hProcess, ULONG64 BaseOfDll,
 865                                PCSTR Name, PSYMBOL_INFO Symbol)
 866 {
 867     struct process*     pcs = process_find_by_handle(hProcess);
 868     struct module*      module;
 869     struct symt*        type;
 870
 871     if (!pcs) return FALSE;
 872     module = module_find_by_addr(pcs, BaseOfDll, DMT_UNKNOWN);
 873     if (!module) return FALSE;
 874     type = symt_find_type_by_name(module, SymTagNull, Name);
 875     if (!type) return FALSE;
 876     Symbol->TypeIndex = (DWORD)type;
 877
 878     return TRUE;
 879 }