dlls/dbghelp/dbghelp_private.h

   1 /*
   2  * File dbghelp_private.h - dbghelp internal definitions
   3  *
   4  * Copyright (C) 1995, Alexandre Julliard
   5  * Copyright (C) 1996, Eric Youngdale.
   6  * Copyright (C) 1999-2000, Ulrich Weigand.
   7  * Copyright (C) 2004-2007, Eric Pouech.
   8  *
   9  * This library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2.1 of the License, or (at your option) any later version.
  13  *
  14  * This library is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this library; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  22  */
  23
  24 #include <stdarg.h>
  25 #include "windef.h"
  26 #include "winbase.h"
  27 #include "winver.h"
  28 #include "dbghelp.h"
  29 #include "objbase.h"
  30 #include "oaidl.h"
  31 #include "winnls.h"
  32 #include "wine/unicode.h"
  33
  34 #include "cvconst.h"
  35
  36 /* #define USE_STATS */
  37
  38 struct pool /* poor's man */
  39 {
  40     struct pool_arena*  first;
  41     unsigned            arena_size;
  42 };
  43
  44 void     pool_init(struct pool* a, unsigned arena_size);
  45 void     pool_destroy(struct pool* a);
  46 void*    pool_alloc(struct pool* a, unsigned len);
  47 char*    pool_strdup(struct pool* a, const char* str);
  48
  49 struct vector
  50 {
  51     void**      buckets;
  52     unsigned    elt_size;
  53     unsigned    shift;
  54     unsigned    num_elts;
  55     unsigned    num_buckets;
  56     unsigned    buckets_allocated;
  57 };
  58
  59 void     vector_init(struct vector* v, unsigned elt_sz, unsigned bucket_sz);
  60 unsigned vector_length(const struct vector* v);
  61 void*    vector_at(const struct vector* v, unsigned pos);
  62 void*    vector_add(struct vector* v, struct pool* pool);
  63
  64 struct sparse_array
  65 {
  66     struct vector               key2index;
  67     struct vector               elements;
  68 };
  69
  70 void     sparse_array_init(struct sparse_array* sa, unsigned elt_sz, unsigned bucket_sz);
  71 void*    sparse_array_find(const struct sparse_array* sa, unsigned long idx);
  72 void*    sparse_array_add(struct sparse_array* sa, unsigned long key, struct pool* pool);
  73 unsigned sparse_array_length(const struct sparse_array* sa);
  74
  75 struct hash_table_elt
  76 {
  77     const char*                 name;
  78     struct hash_table_elt*      next;
  79 };
  80
  81 struct hash_table
  82 {
  83     unsigned                    num_elts;
  84     unsigned                    num_buckets;
  85     struct hash_table_elt**     buckets;
  86     struct pool*                pool;
  87 };
  88
  89 void     hash_table_init(struct pool* pool, struct hash_table* ht,
  90                          unsigned num_buckets);
  91 void     hash_table_destroy(struct hash_table* ht);
  92 void     hash_table_add(struct hash_table* ht, struct hash_table_elt* elt);
  93 void*    hash_table_find(const struct hash_table* ht, const char* name);
  94 unsigned hash_table_hash(const char* name, unsigned num_buckets);
  95
  96 struct hash_table_iter
  97 {
  98     const struct hash_table*    ht;
  99     struct hash_table_elt*      element;
 100     int                         index;
 101     int                         last;
 102 };
 103
 104 void     hash_table_iter_init(const struct hash_table* ht,
 105                               struct hash_table_iter* hti, const char* name);
 106 void*    hash_table_iter_up(struct hash_table_iter* hti);
 107
 108 #define GET_ENTRY(__i, __t, __f) \
 109     ((__t*)((char*)(__i) - (unsigned int)(&((__t*)0)->__f)))
 110
 111
 112 extern unsigned dbghelp_options;
 113 /* some more Wine extensions */
 114 #define SYMOPT_WINE_WITH_ELF_MODULES 0x40000000
 115
 116 enum location_kind {loc_error,          /* reg is the error code */
 117                     loc_absolute,       /* offset is the location */
 118                     loc_register,       /* reg is the location */
 119                     loc_regrel,         /* [reg+offset] is the location */
 120                     loc_user,           /* value is debug information dependent,
 121                                            reg & offset can be used ad libidem */
 122 };
 123
 124 enum location_error {loc_err_internal = -1,     /* internal while computing */
 125                      loc_err_too_complex = -2,  /* couldn't compute location (even at runtime) */
 126                      loc_err_out_of_scope = -3, /* variable isn't available at current address */
 127                      loc_err_cant_read = -4,    /* couldn't read memory at given address */
 128 };
 129
 130 struct location
 131 {
 132     unsigned            kind : 8,
 133                         reg;
 134     unsigned long       offset;
 135 };
 136
 137 struct symt
 138 {
 139     enum SymTagEnum             tag;
 140 };
 141
 142 struct symt_ht
 143 {
 144     struct symt                 symt;
 145     struct hash_table_elt       hash_elt;        /* if global symbol or type */
 146 };
 147
 148 /* lexical tree */
 149 struct symt_block
 150 {
 151     struct symt                 symt;
 152     unsigned long               address;
 153     unsigned long               size;
 154     struct symt*                container;      /* block, or func */
 155     struct vector               vchildren;      /* sub-blocks & local variables */
 156 };
 157
 158 struct symt_compiland
 159 {
 160     struct symt                 symt;
 161     unsigned long               address;
 162     unsigned                    source;
 163     struct vector               vchildren;      /* global variables & functions */
 164 };
 165
 166 struct symt_data
 167 {
 168     struct symt                 symt;
 169     struct hash_table_elt       hash_elt;       /* if global symbol */
 170     enum DataKind               kind;
 171     struct symt*                container;
 172     struct symt*                type;
 173     union                                       /* depends on kind */
 174     {
 175         /* DataIs{Global, FileStatic}:
 176          *      loc.kind is loc_absolute
 177          *      loc.offset is address
 178          * DataIs{Local,Param}:
 179          *      with loc.kind
 180          *              loc_absolute    not supported
 181          *              loc_register    location is in register loc.reg
 182          *              loc_regrel      location is at address loc.reg + loc.offset
 183          *              >= loc_user     ask debug info provider for resolution
 184          */
 185         struct location         var;
 186         /* DataIs{Member} (all values are in bits, not bytes) */
 187         struct
 188         {
 189             long                        offset;
 190             unsigned long               length;
 191         } member;
 192         /* DataIsConstant */
 193         VARIANT                 value;
 194     } u;
 195 };
 196
 197 struct symt_function
 198 {
 199     struct symt                 symt;
 200     struct hash_table_elt       hash_elt;       /* if global symbol */
 201     unsigned long               address;
 202     struct symt*                container;      /* compiland */
 203     struct symt*                type;           /* points to function_signature */
 204     unsigned long               size;
 205     struct vector               vlines;
 206     struct vector               vchildren;      /* locals, params, blocks, start/end, labels */
 207 };
 208
 209 struct symt_hierarchy_point
 210 {
 211     struct symt                 symt;           /* either SymTagFunctionDebugStart, SymTagFunctionDebugEnd, SymTagLabel */
 212     struct hash_table_elt       hash_elt;       /* if label (and in compiland's hash table if global) */
 213     struct symt*                parent;         /* symt_function or symt_compiland */
 214     struct location             loc;
 215 };
 216
 217 struct symt_public
 218 {
 219     struct symt                 symt;
 220     struct hash_table_elt       hash_elt;
 221     struct symt*                container;      /* compiland */
 222     unsigned long               address;
 223     unsigned long               size;
 224     unsigned                    in_code : 1,
 225                                 is_function : 1;
 226 };
 227
 228 struct symt_thunk
 229 {
 230     struct symt                 symt;
 231     struct hash_table_elt       hash_elt;
 232     struct symt*                container;      /* compiland */
 233     unsigned long               address;
 234     unsigned long               size;
 235     THUNK_ORDINAL               ordinal;        /* FIXME: doesn't seem to be accessible */
 236 };
 237
 238 /* class tree */
 239 struct symt_array
 240 {
 241     struct symt                 symt;
 242     int                         start;
 243     int                         end;
 244     struct symt*                base_type;
 245     struct symt*                index_type;
 246 };
 247
 248 struct symt_basic
 249 {
 250     struct symt                 symt;
 251     struct hash_table_elt       hash_elt;
 252     enum BasicType              bt;
 253     unsigned long               size;
 254 };
 255
 256 struct symt_enum
 257 {
 258     struct symt                 symt;
 259     struct symt*                base_type;
 260     const char*                 name;
 261     struct vector               vchildren;
 262 };
 263
 264 struct symt_function_signature
 265 {
 266     struct symt                 symt;
 267     struct symt*                rettype;
 268     struct vector               vchildren;
 269     enum CV_call_e              call_conv;
 270 };
 271
 272 struct symt_function_arg_type
 273 {
 274     struct symt                 symt;
 275     struct symt*                arg_type;
 276     struct symt*                container;
 277 };
 278
 279 struct symt_pointer
 280 {
 281     struct symt                 symt;
 282     struct symt*                pointsto;
 283 };
 284
 285 struct symt_typedef
 286 {
 287     struct symt                 symt;
 288     struct hash_table_elt       hash_elt;
 289     struct symt*                type;
 290 };
 291
 292 struct symt_udt
 293 {
 294     struct symt                 symt;
 295     struct hash_table_elt       hash_elt;
 296     enum UdtKind                kind;
 297     int                         size;
 298     struct vector               vchildren;
 299 };
 300
 301 enum module_type
 302 {
 303     DMT_UNKNOWN,        /* for lookup, not actually used for a module */
 304     DMT_ELF,            /* a real ELF shared module */
 305     DMT_PE,             /* a native or builtin PE module */
 306     DMT_PDB,            /* PDB file */
 307 };
 308
 309 struct process;
 310
 311 struct module
 312 {
 313     IMAGEHLP_MODULEW64          module;
 314     /* ANSI copy of module.ModuleName for efficiency */
 315     char                        module_name[MAX_PATH];
 316     struct module*              next;
 317     enum module_type            type : 16;
 318     unsigned short              is_virtual : 1;
 319
 320     /* specific information for debug types */
 321     struct elf_module_info*     elf_info;
 322     struct dwarf2_module_info_s*dwarf2_info;
 323
 324     /* memory allocation pool */
 325     struct pool                 pool;
 326
 327     /* symbols & symbol tables */
 328     int                         sortlist_valid;
 329     unsigned                    num_sorttab;    /* number of symbols with addresses */
 330     struct symt_ht**            addr_sorttab;
 331     struct hash_table           ht_symbols;
 332     void                        (*loc_compute)(struct process* pcs,
 333                                                const struct module* module,
 334                                                const struct symt_function* func,
 335                                                struct location* loc);
 336
 337     /* types */
 338     struct hash_table           ht_types;
 339     struct vector               vtypes;
 340
 341     /* source files */
 342     unsigned                    sources_used;
 343     unsigned                    sources_alloc;
 344     char*                       sources;
 345 };
 346
 347 struct process
 348 {
 349     struct process*             next;
 350     HANDLE                      handle;
 351     WCHAR*                      search_path;
 352
 353     PSYMBOL_REGISTERED_CALLBACK64       reg_cb;
 354     BOOL                        reg_is_unicode;
 355     DWORD64                     reg_user;
 356
 357     struct module*              lmodules;
 358     unsigned long               dbg_hdr_addr;
 359
 360     IMAGEHLP_STACK_FRAME        ctx_frame;
 361
 362     unsigned                    buffer_size;
 363     void*                       buffer;
 364 };
 365
 366 struct line_info
 367 {
 368     unsigned long               is_first : 1,
 369                                 is_last : 1,
 370                                 is_source_file : 1,
 371                                 line_number;
 372     union
 373     {
 374         unsigned long               pc_offset;   /* if is_source_file isn't set */
 375         unsigned                    source_file; /* if is_source_file is set */
 376     } u;
 377 };
 378
 379 struct module_pair
 380 {
 381     struct process*             pcs;
 382     struct module*              requested; /* in:  to module_get_debug() */
 383     struct module*              effective; /* out: module with debug info */
 384 };
 385
 386 enum pdb_kind {PDB_JG, PDB_DS};
 387
 388 struct pdb_lookup
 389 {
 390     const char*                 filename;
 391     DWORD                       age;
 392     enum pdb_kind               kind;
 393     union
 394     {
 395         struct
 396         {
 397             DWORD               timestamp;
 398             struct PDB_JG_TOC*  toc;
 399         } jg;
 400         struct
 401         {
 402             GUID                guid;
 403             struct PDB_DS_TOC*  toc;
 404         } ds;
 405     } u;
 406 };
 407
 408 /* dbghelp.c */
 409 extern struct process* process_find_by_handle(HANDLE hProcess);
 410 extern HANDLE hMsvcrt;
 411 extern BOOL         validate_addr64(DWORD64 addr);
 412 extern BOOL         pcs_callback(const struct process* pcs, ULONG action, void* data);
 413 extern void*        fetch_buffer(struct process* pcs, unsigned size);
 414
 415 /* elf_module.c */
 416 #define ELF_NO_MAP      ((const void*)0xffffffff)
 417 typedef BOOL (*elf_enum_modules_cb)(const WCHAR*, unsigned long addr, void* user);
 418 extern BOOL         elf_enum_modules(HANDLE hProc, elf_enum_modules_cb, void*);
 419 extern BOOL         elf_fetch_file_info(const WCHAR* name, DWORD* base, DWORD* size, DWORD* checksum);
 420 struct elf_file_map;
 421 extern BOOL         elf_load_debug_info(struct module* module, struct elf_file_map* fmap);
 422 extern struct module*
 423                     elf_load_module(struct process* pcs, const WCHAR* name, unsigned long);
 424 extern BOOL         elf_read_wine_loader_dbg_info(struct process* pcs);
 425 extern BOOL         elf_synchronize_module_list(struct process* pcs);
 426 struct elf_thunk_area;
 427 extern int          elf_is_in_thunk_area(unsigned long addr, const struct elf_thunk_area* thunks);
 428 extern DWORD WINAPI addr_to_linear(HANDLE hProcess, HANDLE hThread, ADDRESS* addr);
 429
 430 /* module.c */
 431 extern const WCHAR      S_ElfW[];
 432 extern const WCHAR      S_WineLoaderW[];
 433 extern const WCHAR      S_WinePThreadW[];
 434 extern const WCHAR      S_WineKThreadW[];
 435 extern const WCHAR      S_SlashW[];
 436
 437 extern struct module*
 438                     module_find_by_addr(const struct process* pcs, unsigned long addr,
 439                                         enum module_type type);
 440 extern struct module*
 441                     module_find_by_name(const struct process* pcs,
 442                                         const WCHAR* name);
 443 extern struct module*
 444                     module_find_by_nameA(const struct process* pcs,
 445                                          const char* name);
 446 extern struct module*
 447                     module_is_already_loaded(const struct process* pcs,
 448                                              const WCHAR* imgname);
 449 extern BOOL         module_get_debug(struct module_pair*);
 450 extern struct module*
 451                     module_new(struct process* pcs, const WCHAR* name,
 452                                enum module_type type, BOOL virtual,
 453                                unsigned long addr, unsigned long size,
 454                                unsigned long stamp, unsigned long checksum);
 455 extern struct module*
 456                     module_get_container(const struct process* pcs,
 457                                          const struct module* inner);
 458 extern struct module*
 459                     module_get_containee(const struct process* pcs,
 460                                          const struct module* inner);
 461 extern enum module_type
 462                     module_get_type_by_name(const WCHAR* name);
 463 extern void         module_reset_debug_info(struct module* module);
 464 extern BOOL         module_remove(struct process* pcs,
 465                                   struct module* module);
 466 extern void         module_set_module(struct module* module, const WCHAR* name);
 467
 468 /* msc.c */
 469 extern BOOL         pe_load_debug_directory(const struct process* pcs,
 470                                             struct module* module,
 471                                             const BYTE* mapping,
 472                                             const IMAGE_SECTION_HEADER* sectp, DWORD nsect,
 473                                             const IMAGE_DEBUG_DIRECTORY* dbg, int nDbg);
 474 extern BOOL         pdb_fetch_file_info(struct pdb_lookup* pdb_lookup);
 475
 476 /* pe_module.c */
 477 extern BOOL         pe_load_nt_header(HANDLE hProc, DWORD base, IMAGE_NT_HEADERS* nth);
 478 extern struct module*
 479                     pe_load_native_module(struct process* pcs, const WCHAR* name,
 480                                           HANDLE hFile, DWORD base, DWORD size);
 481 extern struct module*
 482                     pe_load_builtin_module(struct process* pcs, const WCHAR* name,
 483                                            DWORD base, DWORD size);
 484 extern BOOL         pe_load_debug_info(const struct process* pcs,
 485                                        struct module* module);
 486 /* source.c */
 487 extern unsigned     source_new(struct module* module, const char* basedir, const char* source);
 488 extern const char*  source_get(const struct module* module, unsigned idx);
 489
 490 /* stabs.c */
 491 extern BOOL         stabs_parse(struct module* module, unsigned long load_offset,
 492                                 const void* stabs, int stablen,
 493                                 const char* strs, int strtablen);
 494
 495 /* dwarf.c */
 496 extern BOOL         dwarf2_parse(struct module* module, unsigned long load_offset,
 497                                  const struct elf_thunk_area* thunks,
 498                                  const unsigned char* debug, unsigned int debug_size,
 499                                  const unsigned char* abbrev, unsigned int abbrev_size,
 500                                  const unsigned char* str, unsigned int str_size,
 501                                  const unsigned char* line, unsigned int line_size,
 502                                  const unsigned char* loclist, unsigned int loclist_size);
 503
 504 /* symbol.c */
 505 extern const char*  symt_get_name(const struct symt* sym);
 506 extern int          symt_cmp_addr(const void* p1, const void* p2);
 507 extern void         copy_symbolW(SYMBOL_INFOW* siw, const SYMBOL_INFO* si);
 508 extern struct symt_ht*
 509                     symt_find_nearest(struct module* module, DWORD addr);
 510 extern struct symt_compiland*
 511                     symt_new_compiland(struct module* module, unsigned long address,
 512                                        unsigned src_idx);
 513 extern struct symt_public*
 514                     symt_new_public(struct module* module,
 515                                     struct symt_compiland* parent,
 516                                     const char* typename,
 517                                     unsigned long address, unsigned size,
 518                                     BOOL in_code, BOOL is_func);
 519 extern struct symt_data*
 520                     symt_new_global_variable(struct module* module,
 521                                              struct symt_compiland* parent,
 522                                              const char* name, unsigned is_static,
 523                                              unsigned long addr, unsigned long size,
 524                                              struct symt* type);
 525 extern struct symt_function*
 526                     symt_new_function(struct module* module,
 527                                       struct symt_compiland* parent,
 528                                       const char* name,
 529                                       unsigned long addr, unsigned long size,
 530                                       struct symt* type);
 531 extern BOOL         symt_normalize_function(struct module* module,
 532                                             struct symt_function* func);
 533 extern void         symt_add_func_line(struct module* module,
 534                                        struct symt_function* func,
 535                                        unsigned source_idx, int line_num,
 536                                        unsigned long offset);
 537 extern struct symt_data*
 538                     symt_add_func_local(struct module* module,
 539                                         struct symt_function* func,
 540                                         enum DataKind dt, const struct location* loc,
 541                                         struct symt_block* block,
 542                                         struct symt* type, const char* name);
 543 extern struct symt_block*
 544                     symt_open_func_block(struct module* module,
 545                                          struct symt_function* func,
 546                                          struct symt_block* block,
 547                                          unsigned pc, unsigned len);
 548 extern struct symt_block*
 549                     symt_close_func_block(struct module* module,
 550                                           struct symt_function* func,
 551                                           struct symt_block* block, unsigned pc);
 552 extern struct symt_hierarchy_point*
 553                     symt_add_function_point(struct module* module,
 554                                             struct symt_function* func,
 555                                             enum SymTagEnum point,
 556                                             const struct location* loc,
 557                                             const char* name);
 558 extern BOOL         symt_fill_func_line_info(const struct module* module,
 559                                              const struct symt_function* func,
 560                                              DWORD addr, IMAGEHLP_LINE* line);
 561 extern BOOL         symt_get_func_line_next(const struct module* module, PIMAGEHLP_LINE line);
 562 extern struct symt_thunk*
 563                     symt_new_thunk(struct module* module,
 564                                    struct symt_compiland* parent,
 565                                    const char* name, THUNK_ORDINAL ord,
 566                                    unsigned long addr, unsigned long size);
 567 extern struct symt_data*
 568                     symt_new_constant(struct module* module,
 569                                       struct symt_compiland* parent,
 570                                       const char* name, struct symt* type,
 571                                       const VARIANT* v);
 572 extern struct symt_hierarchy_point*
 573                     symt_new_label(struct module* module,
 574                                    struct symt_compiland* compiland,
 575                                    const char* name, unsigned long address);
 576
 577 /* type.c */
 578 extern void         symt_init_basic(struct module* module);
 579 extern BOOL         symt_get_info(const struct symt* type,
 580                                   IMAGEHLP_SYMBOL_TYPE_INFO req, void* pInfo);
 581 extern struct symt_basic*
 582                     symt_new_basic(struct module* module, enum BasicType,
 583                                    const char* typename, unsigned size);
 584 extern struct symt_udt*
 585                     symt_new_udt(struct module* module, const char* typename,
 586                                  unsigned size, enum UdtKind kind);
 587 extern BOOL         symt_set_udt_size(struct module* module,
 588                                       struct symt_udt* type, unsigned size);
 589 extern BOOL         symt_add_udt_element(struct module* module,
 590                                          struct symt_udt* udt_type,
 591                                          const char* name,
 592                                          struct symt* elt_type, unsigned offset,
 593                                          unsigned size);
 594 extern struct symt_enum*
 595                     symt_new_enum(struct module* module, const char* typename,
 596                                   struct symt* basetype);
 597 extern BOOL         symt_add_enum_element(struct module* module,
 598                                           struct symt_enum* enum_type,
 599                                           const char* name, int value);
 600 extern struct symt_array*
 601                     symt_new_array(struct module* module, int min, int max,
 602                                    struct symt* base, struct symt* index);
 603 extern struct symt_function_signature*
 604                     symt_new_function_signature(struct module* module,
 605                                                 struct symt* ret_type,
 606                                                 enum CV_call_e call_conv);
 607 extern BOOL         symt_add_function_signature_parameter(struct module* module,
 608                                                           struct symt_function_signature* sig,
 609                                                           struct symt* param);
 610 extern struct symt_pointer*
 611                     symt_new_pointer(struct module* module,
 612                                      struct symt* ref_type);
 613 extern struct symt_typedef*
 614                     symt_new_typedef(struct module* module, struct symt* ref,
 615                                      const char* name);