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/list.h"
  33 #include "wine/unicode.h"
  34
  35 #include "cvconst.h"
  36
  37 /* #define USE_STATS */
  38
  39 struct pool /* poor's man */
  40 {
  41     struct list arena_list;
  42     struct list arena_full;
  43     size_t      arena_size;
  44 };
  45
  46 void     pool_init(struct pool* a, size_t arena_size);
  47 void     pool_destroy(struct pool* a);
  48 void*    pool_alloc(struct pool* a, size_t len);
  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     unsigned    buckets_allocated;
  59 };
  60
  61 void     vector_init(struct vector* v, unsigned elt_sz, unsigned bucket_sz);
  62 unsigned vector_length(const struct vector* v);
  63 void*    vector_at(const struct vector* v, unsigned pos);
  64 void*    vector_add(struct vector* v, struct pool* pool);
  65
  66 struct sparse_array
  67 {
  68     struct vector               key2index;
  69     struct vector               elements;
  70 };
  71
  72 void     sparse_array_init(struct sparse_array* sa, unsigned elt_sz, unsigned bucket_sz);
  73 void*    sparse_array_find(const struct sparse_array* sa, unsigned long idx);
  74 void*    sparse_array_add(struct sparse_array* sa, unsigned long key, struct pool* pool);
  75 unsigned sparse_array_length(const struct sparse_array* sa);
  76
  77 struct hash_table_elt
  78 {
  79     const char*                 name;
  80     struct hash_table_elt*      next;
  81 };
  82
  83 struct hash_table_bucket
  84 {
  85     struct hash_table_elt*      first;
  86     struct hash_table_elt*      last;
  87 };
  88
  89 struct hash_table
  90 {
  91     unsigned                    num_elts;
  92     unsigned                    num_buckets;
  93     struct hash_table_bucket*   buckets;
  94     struct pool*                pool;
  95 };
  96
  97 void     hash_table_init(struct pool* pool, struct hash_table* ht,
  98                          unsigned num_buckets);
  99 void     hash_table_destroy(struct hash_table* ht);
 100 void     hash_table_add(struct hash_table* ht, struct hash_table_elt* elt);
 101
 102 struct hash_table_iter
 103 {
 104     const struct hash_table*    ht;
 105     struct hash_table_elt*      element;
 106     int                         index;
 107     int                         last;
 108 };
 109
 110 void     hash_table_iter_init(const struct hash_table* ht,
 111                               struct hash_table_iter* hti, const char* name);
 112 void*    hash_table_iter_up(struct hash_table_iter* hti);
 113
 114 #define GET_ENTRY(__i, __t, __f) \
 115     ((__t*)((char*)(__i) - FIELD_OFFSET(__t,__f)))
 116
 117
 118 extern unsigned dbghelp_options;
 119 /* some more Wine extensions */
 120 #define SYMOPT_WINE_WITH_NATIVE_MODULES 0x40000000
 121
 122 enum location_kind {loc_error,          /* reg is the error code */
 123                     loc_unavailable,    /* location is not available */
 124                     loc_absolute,       /* offset is the location */
 125                     loc_register,       /* reg is the location */
 126                     loc_regrel,         /* [reg+offset] is the location */
 127                     loc_user,           /* value is debug information dependent,
 128                                            reg & offset can be used ad libidem */
 129 };
 130
 131 enum location_error {loc_err_internal = -1,     /* internal while computing */
 132                      loc_err_too_complex = -2,  /* couldn't compute location (even at runtime) */
 133                      loc_err_out_of_scope = -3, /* variable isn't available at current address */
 134                      loc_err_cant_read = -4,    /* couldn't read memory at given address */
 135 };
 136
 137 struct location
 138 {
 139     unsigned            kind : 8,
 140                         reg;
 141     unsigned long       offset;
 142 };
 143
 144 struct symt
 145 {
 146     enum SymTagEnum             tag;
 147 };
 148
 149 struct symt_ht
 150 {
 151     struct symt                 symt;
 152     struct hash_table_elt       hash_elt;        /* if global symbol or type */
 153 };
 154
 155 /* lexical tree */
 156 struct symt_block
 157 {
 158     struct symt                 symt;
 159     unsigned long               address;
 160     unsigned long               size;
 161     struct symt*                container;      /* block, or func */
 162     struct vector               vchildren;      /* sub-blocks & local variables */
 163 };
 164
 165 struct symt_compiland
 166 {
 167     struct symt                 symt;
 168     unsigned long               address;
 169     unsigned                    source;
 170     struct vector               vchildren;      /* global variables & functions */
 171 };
 172
 173 struct symt_data
 174 {
 175     struct symt                 symt;
 176     struct hash_table_elt       hash_elt;       /* if global symbol */
 177     enum DataKind               kind;
 178     struct symt*                container;
 179     struct symt*                type;
 180     union                                       /* depends on kind */
 181     {
 182         /* DataIs{Global, FileStatic}:
 183          *      loc.kind is loc_absolute
 184          *      loc.offset is address
 185          * DataIs{Local,Param}:
 186          *      with loc.kind
 187          *              loc_absolute    not supported
 188          *              loc_register    location is in register loc.reg
 189          *              loc_regrel      location is at address loc.reg + loc.offset
 190          *              >= loc_user     ask debug info provider for resolution
 191          */
 192         struct location         var;
 193         /* DataIs{Member} (all values are in bits, not bytes) */
 194         struct
 195         {
 196             long                        offset;
 197             unsigned long               length;
 198         } member;
 199         /* DataIsConstant */
 200         VARIANT                 value;
 201     } u;
 202 };
 203
 204 struct symt_function
 205 {
 206     struct symt                 symt;
 207     struct hash_table_elt       hash_elt;       /* if global symbol */
 208     unsigned long               address;
 209     struct symt*                container;      /* compiland */
 210     struct symt*                type;           /* points to function_signature */
 211     unsigned long               size;
 212     struct vector               vlines;
 213     struct vector               vchildren;      /* locals, params, blocks, start/end, labels */
 214 };
 215
 216 struct symt_hierarchy_point
 217 {
 218     struct symt                 symt;           /* either SymTagFunctionDebugStart, SymTagFunctionDebugEnd, SymTagLabel */
 219     struct hash_table_elt       hash_elt;       /* if label (and in compiland's hash table if global) */
 220     struct symt*                parent;         /* symt_function or symt_compiland */
 221     struct location             loc;
 222 };
 223
 224 struct symt_public
 225 {
 226     struct symt                 symt;
 227     struct hash_table_elt       hash_elt;
 228     struct symt*                container;      /* compiland */
 229     unsigned long               address;
 230     unsigned long               size;
 231 };
 232
 233 struct symt_thunk
 234 {
 235     struct symt                 symt;
 236     struct hash_table_elt       hash_elt;
 237     struct symt*                container;      /* compiland */
 238     unsigned long               address;
 239     unsigned long               size;
 240     THUNK_ORDINAL               ordinal;        /* FIXME: doesn't seem to be accessible */
 241 };
 242
 243 /* class tree */
 244 struct symt_array
 245 {
 246     struct symt                 symt;
 247     int                         start;
 248     int                         end;            /* end index if > 0, or -array_len (in bytes) if < 0 */
 249     struct symt*                base_type;
 250     struct symt*                index_type;
 251 };
 252
 253 struct symt_basic
 254 {
 255     struct symt                 symt;
 256     struct hash_table_elt       hash_elt;
 257     enum BasicType              bt;
 258     unsigned long               size;
 259 };
 260
 261 struct symt_enum
 262 {
 263     struct symt                 symt;
 264     struct symt*                base_type;
 265     const char*                 name;
 266     struct vector               vchildren;
 267 };
 268
 269 struct symt_function_signature
 270 {
 271     struct symt                 symt;
 272     struct symt*                rettype;
 273     struct vector               vchildren;
 274     enum CV_call_e              call_conv;
 275 };
 276
 277 struct symt_function_arg_type
 278 {
 279     struct symt                 symt;
 280     struct symt*                arg_type;
 281     struct symt*                container;
 282 };
 283
 284 struct symt_pointer
 285 {
 286     struct symt                 symt;
 287     struct symt*                pointsto;
 288 };
 289
 290 struct symt_typedef
 291 {
 292     struct symt                 symt;
 293     struct hash_table_elt       hash_elt;
 294     struct symt*                type;
 295 };
 296
 297 struct symt_udt
 298 {
 299     struct symt                 symt;
 300     struct hash_table_elt       hash_elt;
 301     enum UdtKind                kind;
 302     int                         size;
 303     struct vector               vchildren;
 304 };
 305
 306 enum module_type
 307 {
 308     DMT_UNKNOWN,        /* for lookup, not actually used for a module */
 309     DMT_ELF,            /* a real ELF shared module */
 310     DMT_PE,             /* a native or builtin PE module */
 311     DMT_MACHO,          /* a real Mach-O shared module */
 312     DMT_PDB,            /* .PDB file */
 313     DMT_DBG,            /* .DBG file */
 314 };
 315
 316 struct process;
 317 struct module;
 318
 319 /* a module can be made of several debug information formats, so we have to
 320  * support them all
 321  */
 322 enum format_info
 323 {
 324     DFI_ELF,
 325     DFI_PE,
 326     DFI_MACHO,
 327     DFI_DWARF,
 328     DFI_LAST
 329 };
 330
 331 struct module_format
 332 {
 333     struct module*              module;
 334     void                        (*remove)(struct process* pcs, struct module_format* modfmt);
 335     void                        (*loc_compute)(struct process* pcs,
 336                                                const struct module_format* modfmt,
 337                                                const struct symt_function* func,
 338                                                struct location* loc);
 339     union
 340     {
 341         struct elf_module_info*         elf_info;
 342         struct dwarf2_module_info_s*    dwarf2_info;
 343         struct pe_module_info*          pe_info;
 344         struct macho_module_info*       macho_info;
 345     } u;
 346 };
 347
 348 struct module
 349 {
 350     IMAGEHLP_MODULEW64          module;
 351     /* ANSI copy of module.ModuleName for efficiency */
 352     char                        module_name[MAX_PATH];
 353     struct module*              next;
 354     enum module_type            type : 16;
 355     unsigned short              is_virtual : 1;
 356     DWORD64                     reloc_delta;
 357
 358     /* specific information for debug types */
 359     struct module_format*       format_info[DFI_LAST];
 360
 361     /* memory allocation pool */
 362     struct pool                 pool;
 363
 364     /* symbols & symbol tables */
 365     struct vector               vsymt;
 366     int                         sortlist_valid;
 367     unsigned                    num_sorttab;    /* number of symbols with addresses */
 368     unsigned                    num_symbols;
 369     unsigned                    sorttab_size;
 370     struct symt_ht**            addr_sorttab;
 371     struct hash_table           ht_symbols;
 372
 373     /* types */
 374     struct hash_table           ht_types;
 375     struct vector               vtypes;
 376
 377     /* source files */
 378     unsigned                    sources_used;
 379     unsigned                    sources_alloc;
 380     char*                       sources;
 381 };
 382
 383 struct process
 384 {
 385     struct process*             next;
 386     HANDLE                      handle;
 387     WCHAR*                      search_path;
 388
 389     PSYMBOL_REGISTERED_CALLBACK64       reg_cb;
 390     PSYMBOL_REGISTERED_CALLBACK reg_cb32;
 391     BOOL                        reg_is_unicode;
 392     DWORD64                     reg_user;
 393
 394     struct module*              lmodules;
 395     unsigned long               dbg_hdr_addr;
 396
 397     IMAGEHLP_STACK_FRAME        ctx_frame;
 398
 399     unsigned                    buffer_size;
 400     void*                       buffer;
 401 };
 402
 403 struct line_info
 404 {
 405     unsigned long               is_first : 1,
 406                                 is_last : 1,
 407                                 is_source_file : 1,
 408                                 line_number;
 409     union
 410     {
 411         unsigned long               pc_offset;   /* if is_source_file isn't set */
 412         unsigned                    source_file; /* if is_source_file is set */
 413     } u;
 414 };
 415
 416 struct module_pair
 417 {
 418     struct process*             pcs;
 419     struct module*              requested; /* in:  to module_get_debug() */
 420     struct module*              effective; /* out: module with debug info */
 421 };
 422
 423 enum pdb_kind {PDB_JG, PDB_DS};
 424
 425 struct pdb_lookup
 426 {
 427     const char*                 filename;
 428     DWORD                       age;
 429     enum pdb_kind               kind;
 430     union
 431     {
 432         struct
 433         {
 434             DWORD               timestamp;
 435             struct PDB_JG_TOC*  toc;
 436         } jg;
 437         struct
 438         {
 439             GUID                guid;
 440             struct PDB_DS_TOC*  toc;
 441         } ds;
 442     } u;
 443 };
 444
 445 struct cpu_stack_walk
 446 {
 447     HANDLE                      hProcess;
 448     HANDLE                      hThread;
 449     BOOL                        is32;
 450     union
 451     {
 452         struct
 453         {
 454             PREAD_PROCESS_MEMORY_ROUTINE        f_read_mem;
 455             PTRANSLATE_ADDRESS_ROUTINE          f_xlat_adr;
 456             PFUNCTION_TABLE_ACCESS_ROUTINE      f_tabl_acs;
 457             PGET_MODULE_BASE_ROUTINE            f_modl_bas;
 458         } s32;
 459         struct
 460         {
 461             PREAD_PROCESS_MEMORY_ROUTINE64      f_read_mem;
 462             PTRANSLATE_ADDRESS_ROUTINE64        f_xlat_adr;
 463             PFUNCTION_TABLE_ACCESS_ROUTINE64    f_tabl_acs;
 464             PGET_MODULE_BASE_ROUTINE64          f_modl_bas;
 465         } s64;
 466     } u;
 467 };
 468
 469 enum cpu_addr {cpu_addr_pc, cpu_addr_stack, cpu_addr_frame};
 470 struct cpu
 471 {
 472     DWORD       machine;
 473     DWORD       word_size;
 474     /* address manipulation */
 475     unsigned    (*get_addr)(HANDLE hThread, const CONTEXT* ctx,
 476                             enum cpu_addr, ADDRESS64* addr);
 477
 478     /* stack manipulation */
 479     BOOL        (*stack_walk)(struct cpu_stack_walk* csw, LPSTACKFRAME64 frame, CONTEXT* context);
 480
 481     /* module manipulation */
 482     void*       (*find_runtime_function)(struct module*, DWORD64 addr);
 483
 484     /* dwarf dedicated information */
 485     unsigned    (*map_dwarf_register)(unsigned regno);
 486
 487     /* context related maniputation */
 488     void*       (*fetch_context_reg)(CONTEXT* context, unsigned regno, unsigned* size);
 489     const char* (*fetch_regname)(unsigned regno);
 490 };
 491
 492 extern struct cpu*      dbghelp_current_cpu;
 493
 494 /* dbghelp.c */
 495 extern struct process* process_find_by_handle(HANDLE hProcess);
 496 extern HANDLE hMsvcrt;
 497 extern BOOL         validate_addr64(DWORD64 addr);
 498 extern BOOL         pcs_callback(const struct process* pcs, ULONG action, void* data);
 499 extern void*        fetch_buffer(struct process* pcs, unsigned size);
 500 extern const char*  wine_dbgstr_addr(const ADDRESS64* addr);
 501 extern struct cpu*  cpu_find(DWORD);
 502
 503 /* crc32.c */
 504 extern DWORD calc_crc32(int fd);
 505
 506 typedef BOOL (*enum_modules_cb)(const WCHAR*, unsigned long addr, void* user);
 507
 508 /* elf_module.c */
 509 extern BOOL         elf_enum_modules(HANDLE hProc, enum_modules_cb, void*);
 510 extern BOOL         elf_fetch_file_info(const WCHAR* name, DWORD* base, DWORD* size, DWORD* checksum);
 511 struct image_file_map;
 512 extern BOOL         elf_load_debug_info(struct module* module, struct image_file_map* fmap);
 513 extern struct module*
 514                     elf_load_module(struct process* pcs, const WCHAR* name, unsigned long);
 515 extern BOOL         elf_read_wine_loader_dbg_info(struct process* pcs);
 516 extern BOOL         elf_synchronize_module_list(struct process* pcs);
 517 struct elf_thunk_area;
 518 extern int          elf_is_in_thunk_area(unsigned long addr, const struct elf_thunk_area* thunks);
 519
 520 /* macho_module.c */
 521 #define MACHO_NO_MAP    ((const void*)-1)
 522 extern BOOL         macho_enum_modules(HANDLE hProc, enum_modules_cb, void*);
 523 extern BOOL         macho_fetch_file_info(const WCHAR* name, DWORD* base, DWORD* size, DWORD* checksum);
 524 struct macho_file_map;
 525 extern BOOL         macho_load_debug_info(struct module* module, struct macho_file_map* fmap);
 526 extern struct module*
 527                     macho_load_module(struct process* pcs, const WCHAR* name, unsigned long);
 528 extern BOOL         macho_read_wine_loader_dbg_info(struct process* pcs);
 529 extern BOOL         macho_synchronize_module_list(struct process* pcs);
 530
 531 /* module.c */
 532 extern const WCHAR      S_ElfW[];
 533 extern const WCHAR      S_WineLoaderW[];
 534 extern const WCHAR      S_WineW[];
 535 extern const WCHAR      S_SlashW[];
 536
 537 extern struct module*
 538                     module_find_by_addr(const struct process* pcs, unsigned long addr,
 539                                         enum module_type type);
 540 extern struct module*
 541                     module_find_by_nameA(const struct process* pcs,
 542                                          const char* name);
 543 extern struct module*
 544                     module_is_already_loaded(const struct process* pcs,
 545                                              const WCHAR* imgname);
 546 extern BOOL         module_get_debug(struct module_pair*);
 547 extern struct module*
 548                     module_new(struct process* pcs, const WCHAR* name,
 549                                enum module_type type, BOOL virtual,
 550                                DWORD64 addr, DWORD64 size,
 551                                unsigned long stamp, unsigned long checksum);
 552 extern struct module*
 553                     module_get_containee(const struct process* pcs,
 554                                          const struct module* inner);
 555 extern enum module_type
 556                     module_get_type_by_name(const WCHAR* name);
 557 extern void         module_reset_debug_info(struct module* module);
 558 extern BOOL         module_remove(struct process* pcs,
 559                                   struct module* module);
 560 extern void         module_set_module(struct module* module, const WCHAR* name);
 561
 562 /* msc.c */
 563 extern BOOL         pe_load_debug_directory(const struct process* pcs,
 564                                             struct module* module,
 565                                             const BYTE* mapping,
 566                                             const IMAGE_SECTION_HEADER* sectp, DWORD nsect,
 567                                             const IMAGE_DEBUG_DIRECTORY* dbg, int nDbg);
 568 extern BOOL         pdb_fetch_file_info(struct pdb_lookup* pdb_lookup);
 569
 570 /* path.c */
 571 extern BOOL         path_find_symbol_file(const struct process* pcs, PCSTR full_path,
 572                                           const GUID* guid, DWORD dw1, DWORD dw2, PSTR buffer,
 573                                           BOOL* is_unmatched);
 574
 575 /* pe_module.c */
 576 extern BOOL         pe_load_nt_header(HANDLE hProc, DWORD64 base, IMAGE_NT_HEADERS* nth);
 577 extern struct module*
 578                     pe_load_native_module(struct process* pcs, const WCHAR* name,
 579                                           HANDLE hFile, DWORD base, DWORD size);
 580 extern struct module*
 581                     pe_load_builtin_module(struct process* pcs, const WCHAR* name,
 582                                            DWORD64 base, DWORD64 size);
 583 extern BOOL         pe_load_debug_info(const struct process* pcs,
 584                                        struct module* module);
 585 extern const char*  pe_map_directory(struct module* module, int dirno, DWORD* size);
 586 extern void         pe_unmap_directoy(struct module* module, int dirno);
 587
 588 /* source.c */
 589 extern unsigned     source_new(struct module* module, const char* basedir, const char* source);
 590 extern const char*  source_get(const struct module* module, unsigned idx);
 591
 592 /* stabs.c */
 593 typedef void (*stabs_def_cb)(struct module* module, unsigned long load_offset,
 594                                 const char* name, unsigned long offset,
 595                                 BOOL is_public, BOOL is_global, unsigned char other,
 596                                 struct symt_compiland* compiland, void* user);
 597 extern BOOL         stabs_parse(struct module* module, unsigned long load_offset,
 598                                 const void* stabs, int stablen,
 599                                 const char* strs, int strtablen,
 600                                 stabs_def_cb callback, void* user);
 601
 602 /* dwarf.c */
 603 extern BOOL         dwarf2_parse(struct module* module, unsigned long load_offset,
 604                                  const struct elf_thunk_area* thunks,
 605                                  struct image_file_map* fmap);
 606 extern BOOL         dwarf2_virtual_unwind(struct cpu_stack_walk* csw, DWORD_PTR ip,
 607                                           CONTEXT* context, ULONG_PTR* cfa);
 608
 609 /* stack.c */
 610 extern BOOL         sw_read_mem(struct cpu_stack_walk* csw, DWORD64 addr, void* ptr, DWORD sz);
 611 extern DWORD64      sw_xlat_addr(struct cpu_stack_walk* csw, ADDRESS64* addr);
 612 extern void*        sw_table_access(struct cpu_stack_walk* csw, DWORD64 addr);
 613 extern DWORD64      sw_module_base(struct cpu_stack_walk* csw, DWORD64 addr);
 614
 615 /* symbol.c */
 616 extern const char*  symt_get_name(const struct symt* sym);
 617 extern struct module* symt_cmp_addr_module;
 618 extern int          symt_cmp_addr(const void* p1, const void* p2);
 619 extern void         copy_symbolW(SYMBOL_INFOW* siw, const SYMBOL_INFO* si);
 620 extern struct symt_ht*
 621                     symt_find_nearest(struct module* module, DWORD_PTR addr);
 622 extern struct symt_compiland*
 623                     symt_new_compiland(struct module* module, unsigned long address,
 624                                        unsigned src_idx);
 625 extern struct symt_public*
 626                     symt_new_public(struct module* module,
 627                                     struct symt_compiland* parent,
 628                                     const char* typename,
 629                                     unsigned long address, unsigned size);
 630 extern struct symt_data*
 631                     symt_new_global_variable(struct module* module,
 632                                              struct symt_compiland* parent,
 633                                              const char* name, unsigned is_static,
 634                                              unsigned long addr, unsigned long size,
 635                                              struct symt* type);
 636 extern struct symt_function*
 637                     symt_new_function(struct module* module,
 638                                       struct symt_compiland* parent,
 639                                       const char* name,
 640                                       unsigned long addr, unsigned long size,
 641                                       struct symt* type);
 642 extern BOOL         symt_normalize_function(struct module* module,
 643                                             const struct symt_function* func);
 644 extern void         symt_add_func_line(struct module* module,
 645                                        struct symt_function* func,
 646                                        unsigned source_idx, int line_num,
 647                                        unsigned long offset);
 648 extern struct symt_data*
 649                     symt_add_func_local(struct module* module,
 650                                         struct symt_function* func,
 651                                         enum DataKind dt, const struct location* loc,
 652                                         struct symt_block* block,
 653                                         struct symt* type, const char* name);
 654 extern struct symt_block*
 655                     symt_open_func_block(struct module* module,
 656                                          struct symt_function* func,
 657                                          struct symt_block* block,
 658                                          unsigned pc, unsigned len);
 659 extern struct symt_block*
 660                     symt_close_func_block(struct module* module,
 661                                           const struct symt_function* func,
 662                                           struct symt_block* block, unsigned pc);
 663 extern struct symt_hierarchy_point*
 664                     symt_add_function_point(struct module* module,
 665                                             struct symt_function* func,
 666                                             enum SymTagEnum point,
 667                                             const struct location* loc,
 668                                             const char* name);
 669 extern BOOL         symt_fill_func_line_info(const struct module* module,
 670                                              const struct symt_function* func,
 671                                              DWORD64 addr, IMAGEHLP_LINE64* line);
 672 extern BOOL         symt_get_func_line_next(const struct module* module, PIMAGEHLP_LINE64 line);
 673 extern struct symt_thunk*
 674                     symt_new_thunk(struct module* module,
 675                                    struct symt_compiland* parent,
 676                                    const char* name, THUNK_ORDINAL ord,
 677                                    unsigned long addr, unsigned long size);
 678 extern struct symt_data*
 679                     symt_new_constant(struct module* module,
 680                                       struct symt_compiland* parent,
 681                                       const char* name, struct symt* type,
 682                                       const VARIANT* v);
 683 extern struct symt_hierarchy_point*
 684                     symt_new_label(struct module* module,
 685                                    struct symt_compiland* compiland,
 686                                    const char* name, unsigned long address);
 687 extern struct symt* symt_index2ptr(struct module* module, DWORD id);
 688 extern DWORD        symt_ptr2index(struct module* module, const struct symt* sym);
 689
 690 /* type.c */
 691 extern void         symt_init_basic(struct module* module);
 692 extern BOOL         symt_get_info(struct module* module, const struct symt* type,
 693                                   IMAGEHLP_SYMBOL_TYPE_INFO req, void* pInfo);
 694 extern struct symt_basic*
 695                     symt_new_basic(struct module* module, enum BasicType,
 696                                    const char* typename, unsigned size);
 697 extern struct symt_udt*
 698                     symt_new_udt(struct module* module, const char* typename,
 699                                  unsigned size, enum UdtKind kind);
 700 extern BOOL         symt_set_udt_size(struct module* module,
 701                                       struct symt_udt* type, unsigned size);
 702 extern BOOL         symt_add_udt_element(struct module* module,
 703                                          struct symt_udt* udt_type,
 704                                          const char* name,
 705                                          struct symt* elt_type, unsigned offset,
 706                                          unsigned size);
 707 extern struct symt_enum*
 708                     symt_new_enum(struct module* module, const char* typename,
 709                                   struct symt* basetype);
 710 extern BOOL         symt_add_enum_element(struct module* module,
 711                                           struct symt_enum* enum_type,
 712                                           const char* name, int value);
 713 extern struct symt_array*
 714                     symt_new_array(struct module* module, int min, int max,
 715                                    struct symt* base, struct symt* index);
 716 extern struct symt_function_signature*
 717                     symt_new_function_signature(struct module* module,
 718                                                 struct symt* ret_type,
 719                                                 enum CV_call_e call_conv);
 720 extern BOOL         symt_add_function_signature_parameter(struct module* module,
 721                                                           struct symt_function_signature* sig,
 722                                                           struct symt* param);
 723 extern struct symt_pointer*
 724                     symt_new_pointer(struct module* module,
 725                                      struct symt* ref_type);
 726 extern struct symt_typedef*
 727                     symt_new_typedef(struct module* module, struct symt* ref,
 728                                      const char* name);