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