programs/winedbg/debugger.h

   1 /*
   2  * Debugger definitions
   3  *
   4  * Copyright 1995 Alexandre Julliard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #ifndef __WINE_DEBUGGER_H
  22 #define __WINE_DEBUGGER_H
  23
  24 #include <assert.h>
  25 #include <stdarg.h>
  26
  27 #define NONAMELESSUNION
  28 #define NONAMELESSSTRUCT
  29 #include "ntstatus.h"
  30 #define WIN32_NO_STATUS
  31 #define WIN32_LEAN_AND_MEAN
  32 #include "windef.h"
  33 #include "winbase.h"
  34 #include "winver.h"
  35 #include "winternl.h"
  36 #include "dbghelp.h"
  37 #include "cvconst.h"
  38 #include "objbase.h"
  39 #include "oaidl.h"
  40 #include <wine/list.h>
  41
  42 #define ADDRSIZE        (dbg_curr_process->be_cpu->pointer_size)
  43 #define ADDRWIDTH       (ADDRSIZE * 2)
  44
  45 /* the debugger uses these exceptions for its internal use */
  46 #define DEBUG_STATUS_OFFSET             0x80003000
  47 #define DEBUG_STATUS_INTERNAL_ERROR     (DEBUG_STATUS_OFFSET+0) /* something went wrong */
  48 #define DEBUG_STATUS_NO_SYMBOL          (DEBUG_STATUS_OFFSET+1) /* no symbol found in lookup */
  49 #define DEBUG_STATUS_DIV_BY_ZERO        (DEBUG_STATUS_OFFSET+2)
  50 #define DEBUG_STATUS_BAD_TYPE           (DEBUG_STATUS_OFFSET+3) /* no type found, when type was expected */
  51 #define DEBUG_STATUS_NO_FIELD           (DEBUG_STATUS_OFFSET+4) /* when dereferencing a struct, the field was not found */
  52 #define DEBUG_STATUS_ABORT              (DEBUG_STATUS_OFFSET+5) /* user aborted on going action */
  53 #define DEBUG_STATUS_CANT_DEREF         (DEBUG_STATUS_OFFSET+6) /* either not deref:able, or index out of bounds */
  54 #define DEBUG_STATUS_NOT_AN_INTEGER     (DEBUG_STATUS_OFFSET+7) /* requiring an integral value */
  55
  56 /*
  57  * Return values for symbol_get_function_line_status.  Used to determine
  58  * what to do when the 'step' command is given.
  59  */
  60 enum dbg_line_status
  61 {
  62     dbg_no_line_info,
  63     dbg_not_on_a_line_number,
  64     dbg_on_a_line_number,
  65     dbg_in_a_thunk,
  66 };
  67
  68 enum dbg_internal_types
  69 {
  70     dbg_itype_first             = 0xffffff00,
  71     dbg_itype_unsigned_int,
  72     dbg_itype_signed_int,
  73     dbg_itype_signed_char_int,
  74     dbg_itype_unsigned_char_int,
  75     dbg_itype_unsigned_short_int,
  76     dbg_itype_signed_short_int,
  77     dbg_itype_unsigned_long_int,
  78     dbg_itype_signed_long_int,
  79     dbg_itype_unsigned_longlong_int,
  80     dbg_itype_signed_longlong_int,
  81     dbg_itype_char,
  82     dbg_itype_wchar,
  83     dbg_itype_short_real, /* aka float */
  84     dbg_itype_real,       /* aka double */
  85     dbg_itype_long_real,  /* aka long double */
  86     dbg_itype_astring,
  87     dbg_itype_ustring,
  88     dbg_itype_segptr,     /* hack for segmented pointers */
  89     dbg_itype_m128a,      /* 128-bit (XMM) registers */
  90     dbg_itype_none              = 0xffffffff
  91 };
  92
  93 /* type description (in the following order):
  94  * - if 'id' is dbg_itype_none (whatever 'module' value), the type isn't known
  95  * - if 'module' is 0, it's an internal type (id is one of dbg_itype...)
  96  * - if 'module' is non 0, then 'id' is a type ID referring to module (loaded in
  97  *   dbghelp) which (linear) contains address 'module'.
  98  */
  99 struct dbg_type
 100 {
 101     unsigned long       id;
 102     DWORD_PTR           module;
 103 };
 104
 105 struct dbg_lvalue       /* structure to hold left-values... */
 106 {
 107     int                 cookie; /* DLV_??? */
 108 /* DLV_TARGET references an address in debuggee's address space, whereas DLV_HOST
 109  * references the winedbg's address space
 110  */
 111 #       define  DLV_TARGET      0xF00D
 112 #       define  DLV_HOST        0x50DA
 113     ADDRESS64           addr;
 114     struct dbg_type     type;
 115 };
 116
 117 enum dbg_exec_mode
 118 {
 119     dbg_exec_cont,                      /* Continue execution */
 120     dbg_exec_step_over_line,            /* Stepping over a call to next source line */
 121     dbg_exec_step_into_line,            /* Step to next source line, stepping in if needed */
 122     dbg_exec_step_over_insn,            /* Stepping over a call */
 123     dbg_exec_step_into_insn,            /* Single-stepping an instruction */
 124     dbg_exec_finish,                    /* Single-step until we exit current frame */
 125 #if 0
 126     EXEC_STEP_OVER_TRAMPOLINE,  /* Step over trampoline.  Requires that we dig the real
 127                                  * return value off the stack and set breakpoint there -
 128                                  * not at the instr just after the call.
 129                                  */
 130 #endif
 131 };
 132
 133 struct dbg_breakpoint
 134 {
 135     ADDRESS64           addr;
 136     unsigned long       enabled : 1,
 137                         xpoint_type : 2,
 138                         refcount : 13,
 139                         skipcount : 16;
 140     unsigned long       info;
 141     struct              /* only used for watchpoints */
 142     {
 143         BYTE            len : 2;
 144         DWORD64         oldval;
 145     } w;
 146     struct expr*        condition;
 147 };
 148
 149 /* used for C++ exceptions in msvcrt
 150  * parameters:
 151  * [0] CXX_FRAME_MAGIC
 152  * [1] pointer to exception object
 153  * [2] pointer to type
 154  */
 155 #define CXX_EXCEPTION                       0xe06d7363
 156 #define CXX_FRAME_MAGIC                     0x19930520
 157
 158 /* Wine extension; Windows doesn't have a name for this code.  This is an
 159    undocumented exception understood by MS VC debugger, allowing the program
 160    to name a particular thread.  Search google.com or deja.com for "0x406d1388"
 161    for more info. */
 162 #define EXCEPTION_NAME_THREAD               0x406D1388
 163
 164 /* Helper structure */
 165 typedef struct tagTHREADNAME_INFO
 166 {
 167    DWORD   dwType;     /* Must be 0x1000 */
 168    LPCSTR  szName;     /* Pointer to name - limited to 9 bytes (8 characters + terminator) */
 169    DWORD   dwThreadID; /* Thread ID (-1 = caller thread) */
 170    DWORD   dwFlags;    /* Reserved for future use.  Must be zero. */
 171 } THREADNAME_INFO;
 172
 173 typedef union dbg_ctx
 174 {
 175     CONTEXT ctx;
 176     WOW64_CONTEXT x86;
 177 } dbg_ctx_t;
 178
 179 struct dbg_thread
 180 {
 181     struct list                 entry;
 182     struct dbg_process*         process;
 183     HANDLE                      handle;
 184     DWORD                       tid;
 185     void*                       teb;
 186     enum dbg_exec_mode          exec_mode;      /* mode the thread is run (step/run...) */
 187     int                         exec_count;     /* count of mode operations */
 188     ADDRESS_MODE                addr_mode;      /* mode */
 189     int                         stopped_xpoint; /* xpoint on which the thread has stopped (-1 if none) */
 190     struct dbg_breakpoint       step_over_bp;
 191     char                        name[9];
 192     BOOL                        in_exception;   /* TRUE if thread stopped with an exception */
 193     BOOL                        first_chance;   /* TRUE if thread stopped with a first chance exception
 194                                                  *      - only valid when in_exception is TRUE
 195                                                  */
 196     EXCEPTION_RECORD            excpt_record;   /* only valid when in_exception is TRUE */
 197     struct
 198     {
 199         ADDRESS64               addr_pc;
 200         ADDRESS64               addr_frame;
 201         ADDRESS64               addr_stack;
 202         DWORD_PTR               linear_pc;
 203         DWORD_PTR               linear_frame;
 204         DWORD_PTR               linear_stack;
 205         dbg_ctx_t               context;        /* context we got out of stackwalk for this frame */
 206         BOOL                    is_ctx_valid;   /* is the context above valid */
 207     }*                          frames;
 208     int                         num_frames;
 209     int                         curr_frame;
 210     BOOL                        suspended;
 211 };
 212
 213 struct dbg_delayed_bp
 214 {
 215     BOOL                        is_symbol;
 216     BOOL                        software_bp;
 217     union
 218     {
 219         struct
 220         {
 221             int                         lineno;
 222             char*                       name;
 223         } symbol;
 224         ADDRESS64               addr;
 225     } u;
 226 };
 227
 228 #define MAX_BREAKPOINTS 100
 229 struct dbg_process
 230 {
 231     struct list                 entry;
 232     HANDLE                      handle;
 233     DWORD                       pid;
 234     const struct be_process_io* process_io;
 235     void*                       pio_data;
 236     const WCHAR*                imageName;
 237     struct list                 threads;
 238     struct backend_cpu*         be_cpu;
 239     HANDLE                      event_on_first_exception;
 240     BOOL                        active_debuggee;
 241     struct dbg_breakpoint       bp[MAX_BREAKPOINTS];
 242     unsigned                    next_bp;
 243     struct dbg_delayed_bp*      delayed_bp;
 244     int                         num_delayed_bp;
 245     struct open_file_list*      source_ofiles;
 246     char*                       search_path;
 247     char                        source_current_file[MAX_PATH];
 248     int                         source_start_line;
 249     int                         source_end_line;
 250 };
 251
 252 /* describes the way the debugger interacts with a given process */
 253 struct be_process_io
 254 {
 255     BOOL        (*close_process)(struct dbg_process*, BOOL);
 256     BOOL        (*read)(HANDLE, const void*, void*, SIZE_T, SIZE_T*);
 257     BOOL        (*write)(HANDLE, void*, const void*, SIZE_T, SIZE_T*);
 258     BOOL        (*get_selector)(HANDLE, DWORD, LDT_ENTRY*);
 259 };
 260
 261 extern  struct dbg_process*     dbg_curr_process;
 262 extern  DWORD_PTR               dbg_curr_pid;
 263 extern  struct dbg_thread*      dbg_curr_thread;
 264 extern  DWORD_PTR               dbg_curr_tid;
 265 extern  dbg_ctx_t               dbg_context;
 266 extern  BOOL                    dbg_interactiveP;
 267 extern  HANDLE                  dbg_houtput;
 268
 269 struct dbg_internal_var
 270 {
 271     DWORD_PTR                   val;
 272     const char*                 name;
 273     DWORD_PTR                   *pval;
 274     unsigned long               typeid; /* always internal type */
 275 };
 276
 277 enum sym_get_lval {sglv_found, sglv_unknown, sglv_aborted};
 278
 279 enum type_expr_e
 280 {
 281     type_expr_type_id,
 282     type_expr_udt_class,
 283     type_expr_udt_struct,
 284     type_expr_udt_union,
 285     type_expr_enumeration
 286 };
 287
 288 struct type_expr_t
 289 {
 290     enum type_expr_e    type;
 291     unsigned            deref_count;
 292     union
 293     {
 294         struct dbg_type type;
 295         const char*     name;
 296     } u;
 297 };
 298
 299 enum dbg_start {start_ok, start_error_parse, start_error_init};
 300
 301   /* break.c */
 302 extern void             break_set_xpoints(BOOL set);
 303 extern BOOL             break_add_break(const ADDRESS64* addr, BOOL verbose, BOOL swbp);
 304 extern BOOL             break_add_break_from_lvalue(const struct dbg_lvalue* value, BOOL swbp);
 305 extern void             break_add_break_from_id(const char* name, int lineno, BOOL swbp);
 306 extern void             break_add_break_from_lineno(const char *filename, int lineno, BOOL swbp);
 307 extern void             break_add_watch_from_lvalue(const struct dbg_lvalue* lvalue, BOOL is_write);
 308 extern void             break_add_watch_from_id(const char* name, BOOL is_write);
 309 extern void             break_check_delayed_bp(void);
 310 extern void             break_delete_xpoint(int num);
 311 extern void             break_delete_xpoints_from_module(DWORD64 base);
 312 extern void             break_enable_xpoint(int num, BOOL enable);
 313 extern void             break_info(void);
 314 extern void             break_adjust_pc(ADDRESS64* addr, DWORD code, BOOL first_chance, BOOL* is_break);
 315 extern BOOL             break_should_continue(ADDRESS64* addr, DWORD code);
 316 extern void             break_suspend_execution(void);
 317 extern void             break_restart_execution(int count);
 318 extern int              break_add_condition(int bpnum, struct expr* exp);
 319
 320   /* crashdlg.c */
 321 extern int              display_crash_dialog(void);
 322 extern HANDLE           display_crash_details(HANDLE event);
 323 extern int              msgbox_res_id(HWND hwnd, UINT textId, UINT captionId, UINT uType);
 324
 325   /* dbg.y */
 326 extern void             parser_handle(HANDLE);
 327 extern int              input_read_line(const char* pfx, char* buffer, int size);
 328 extern int              input_fetch_entire_line(const char* pfx, char** line);
 329 extern HANDLE           parser_generate_command_file(const char*, ...);
 330
 331   /* debug.l */
 332 extern void             lexeme_flush(void);
 333 extern char*            lexeme_alloc_size(int);
 334
 335   /* display.c */
 336 extern BOOL             display_print(void);
 337 extern BOOL             display_add(struct expr* exp, int count, char format);
 338 extern BOOL             display_delete(int displaynum);
 339 extern BOOL             display_info(void);
 340 extern BOOL             display_enable(int displaynum, int enable);
 341
 342   /* expr.c */
 343 extern void             expr_free_all(void);
 344 extern struct expr*     expr_alloc_internal_var(const char* name);
 345 extern struct expr*     expr_alloc_symbol(const char* name);
 346 extern struct expr*     expr_alloc_sconstant(long int val);
 347 extern struct expr*     expr_alloc_uconstant(long unsigned val);
 348 extern struct expr*     expr_alloc_string(const char* str);
 349 extern struct expr*     expr_alloc_binary_op(int oper, struct expr*, struct expr*);
 350 extern struct expr*     expr_alloc_unary_op(int oper, struct expr*);
 351 extern struct expr*     expr_alloc_pstruct(struct expr*, const char* element);
 352 extern struct expr*     expr_alloc_struct(struct expr*, const char* element);
 353 extern struct expr*     expr_alloc_func_call(const char*, int nargs, ...);
 354 extern struct expr*     expr_alloc_typecast(struct type_expr_t*, struct expr*);
 355 extern struct dbg_lvalue expr_eval(struct expr*);
 356 extern struct expr*     expr_clone(const struct expr* exp, BOOL *local_binding);
 357 extern BOOL             expr_free(struct expr* exp);
 358 extern BOOL             expr_print(const struct expr* exp);
 359
 360   /* info.c */
 361 extern void             print_help(void);
 362 extern void             info_help(void);
 363 extern void             info_win32_module(DWORD64 mod);
 364 extern void             info_win32_class(HWND hWnd, const char* clsName);
 365 extern void             info_win32_window(HWND hWnd, BOOL detailed);
 366 extern void             info_win32_processes(void);
 367 extern void             info_win32_threads(void);
 368 extern void             info_win32_frame_exceptions(DWORD tid);
 369 extern void             info_win32_virtual(DWORD pid);
 370 extern void             info_win32_segments(DWORD start, int length);
 371 extern void             info_win32_exception(void);
 372 extern void             info_wine_dbg_channel(BOOL add, const char* chnl, const char* name);
 373
 374   /* memory.c */
 375 extern BOOL             memory_read_value(const struct dbg_lvalue* lvalue, DWORD size, void* result);
 376 extern BOOL             memory_write_value(const struct dbg_lvalue* val, DWORD size, void* value);
 377 extern void             memory_examine(const struct dbg_lvalue *lvalue, int count, char format);
 378 extern void*            memory_to_linear_addr(const ADDRESS64* address);
 379 extern BOOL             memory_get_current_pc(ADDRESS64* address);
 380 extern BOOL             memory_get_current_stack(ADDRESS64* address);
 381 extern BOOL             memory_get_string(struct dbg_process* pcs, void* addr, BOOL in_debuggee, BOOL unicode, char* buffer, int size);
 382 extern BOOL             memory_get_string_indirect(struct dbg_process* pcs, void* addr, BOOL unicode, WCHAR* buffer, int size);
 383 extern BOOL             memory_get_register(DWORD regno, DWORD_PTR** value, char* buffer, int len);
 384 extern void             memory_disassemble(const struct dbg_lvalue*, const struct dbg_lvalue*, int instruction_count);
 385 extern BOOL             memory_disasm_one_insn(ADDRESS64* addr);
 386 #define MAX_OFFSET_TO_STR_LEN 19
 387 extern char*            memory_offset_to_string(char *str, DWORD64 offset, unsigned mode);
 388 extern void             print_bare_address(const ADDRESS64* addr);
 389 extern void             print_address(const ADDRESS64* addr, BOOLEAN with_line);
 390 extern void             print_basic(const struct dbg_lvalue* value, char format);
 391
 392   /* source.c */
 393 extern void             source_list(IMAGEHLP_LINE64* src1, IMAGEHLP_LINE64* src2, int delta);
 394 extern void             source_list_from_addr(const ADDRESS64* addr, int nlines);
 395 extern void             source_show_path(void);
 396 extern void             source_add_path(const char* path);
 397 extern void             source_nuke_path(struct dbg_process* p);
 398 extern void             source_free_files(struct dbg_process* p);
 399
 400   /* stack.c */
 401 extern void             stack_info(int len);
 402 extern void             stack_backtrace(DWORD threadID);
 403 extern BOOL             stack_set_frame(int newframe);
 404 extern BOOL             stack_get_current_frame(IMAGEHLP_STACK_FRAME* ihsf);
 405 extern BOOL             stack_get_register_frame(const struct dbg_internal_var* div, DWORD_PTR** pval);
 406 extern unsigned         stack_fetch_frames(const dbg_ctx_t *ctx);
 407 extern BOOL             stack_get_current_symbol(SYMBOL_INFO* sym);
 408
 409   /* symbol.c */
 410 extern enum sym_get_lval symbol_get_lvalue(const char* name, const int lineno, struct dbg_lvalue* addr, BOOL bp_disp);
 411 extern void             symbol_read_symtable(const char* filename, unsigned long offset);
 412 extern enum dbg_line_status symbol_get_function_line_status(const ADDRESS64* addr);
 413 extern BOOL             symbol_get_line(const char* filename, const char* func, IMAGEHLP_LINE64* ret);
 414 extern void             symbol_info(const char* str);
 415 extern void             symbol_print_local(const SYMBOL_INFO* sym, DWORD_PTR base, BOOL detailed);
 416 extern BOOL             symbol_info_locals(void);
 417 extern BOOL             symbol_is_local(const char* name);
 418 struct sgv_data;
 419 typedef enum sym_get_lval (*symbol_picker_t)(const char* name, const struct sgv_data* sgv,
 420                                              struct dbg_lvalue* rtn);
 421 extern symbol_picker_t symbol_current_picker;
 422 extern enum sym_get_lval symbol_picker_interactive(const char* name, const struct sgv_data* sgv,
 423                                                    struct dbg_lvalue* rtn);
 424 extern enum sym_get_lval symbol_picker_scoped(const char* name, const struct sgv_data* sgv,
 425                                               struct dbg_lvalue* rtn);
 426
 427   /* tgt_active.c */
 428 extern void             dbg_run_debuggee(const char* args);
 429 extern void             dbg_wait_next_exception(DWORD cont, int count, int mode);
 430 extern enum dbg_start   dbg_active_attach(int argc, char* argv[]);
 431 extern BOOL             dbg_set_curr_thread(DWORD tid);
 432 extern enum dbg_start   dbg_active_launch(int argc, char* argv[]);
 433 extern enum dbg_start   dbg_active_auto(int argc, char* argv[]);
 434 extern enum dbg_start   dbg_active_minidump(int argc, char* argv[]);
 435 extern void             dbg_active_wait_for_first_exception(void);
 436 extern BOOL             dbg_attach_debuggee(DWORD pid);
 437
 438   /* tgt_minidump.c */
 439 extern void             minidump_write(const char*, const EXCEPTION_RECORD*);
 440 extern enum dbg_start   minidump_reload(int argc, char* argv[]);
 441
 442   /* tgt_module.c */
 443 extern enum dbg_start   tgt_module_load(const char* name, BOOL keep);
 444
 445   /* types.c */
 446 extern void             print_value(const struct dbg_lvalue* addr, char format, int level);
 447 extern BOOL             types_print_type(const struct dbg_type*, BOOL details);
 448 extern BOOL             print_types(void);
 449 extern long int         types_extract_as_integer(const struct dbg_lvalue*);
 450 extern LONGLONG         types_extract_as_longlong(const struct dbg_lvalue*, unsigned* psize, BOOL *pissigned);
 451 extern void             types_extract_as_address(const struct dbg_lvalue*, ADDRESS64*);
 452 extern BOOL             types_store_value(struct dbg_lvalue* lvalue_to, const struct dbg_lvalue* lvalue_from);
 453 extern BOOL             types_udt_find_element(struct dbg_lvalue* value, const char* name, long int* tmpbuf);
 454 extern BOOL             types_array_index(const struct dbg_lvalue* value, int index, struct dbg_lvalue* result);
 455 extern BOOL             types_get_info(const struct dbg_type*, IMAGEHLP_SYMBOL_TYPE_INFO, void*);
 456 extern BOOL             types_get_real_type(struct dbg_type* type, DWORD* tag);
 457 extern struct dbg_type  types_find_pointer(const struct dbg_type* type);
 458 extern struct dbg_type  types_find_type(unsigned long linear, const char* name, enum SymTagEnum tag);
 459
 460   /* winedbg.c */
 461 extern void             dbg_outputW(const WCHAR* buffer, int len);
 462 extern const char*      dbg_W2A(const WCHAR* buffer, unsigned len);
 463 #ifdef __GNUC__
 464 extern int              dbg_printf(const char* format, ...) __attribute__((format (printf,1,2)));
 465 #else
 466 extern int              dbg_printf(const char* format, ...);
 467 #endif
 468 extern const struct dbg_internal_var* dbg_get_internal_var(const char*);
 469 extern BOOL             dbg_interrupt_debuggee(void);
 470 extern unsigned         dbg_num_processes(void);
 471 extern struct dbg_process* dbg_add_process(const struct be_process_io* pio, DWORD pid, HANDLE h);
 472 extern void             dbg_set_process_name(struct dbg_process* p, const WCHAR* name);
 473 extern struct dbg_process* dbg_get_process(DWORD pid);
 474 extern struct dbg_process* dbg_get_process_h(HANDLE handle);
 475 extern void             dbg_del_process(struct dbg_process* p);
 476 struct dbg_thread*      dbg_add_thread(struct dbg_process* p, DWORD tid, HANDLE h, void* teb);
 477 extern struct dbg_thread* dbg_get_thread(struct dbg_process* p, DWORD tid);
 478 extern void             dbg_del_thread(struct dbg_thread* t);
 479 extern BOOL             dbg_init(HANDLE hProc, const WCHAR* in, BOOL invade);
 480 extern BOOL             dbg_load_module(HANDLE hProc, HANDLE hFile, const WCHAR* name, DWORD_PTR base, DWORD size);
 481 extern BOOL             dbg_get_debuggee_info(HANDLE hProcess, IMAGEHLP_MODULE64* imh_mod);
 482 extern void             dbg_set_option(const char*, const char*);
 483 extern void             dbg_start_interactive(HANDLE hFile);
 484 extern void             dbg_init_console(void);
 485
 486   /* gdbproxy.c */
 487 extern int              gdb_main(int argc, char* argv[]);
 488
 489 static inline BOOL dbg_read_memory(const void* addr, void* buffer, size_t len)
 490 {
 491     SIZE_T rlen;
 492     return dbg_curr_process->process_io->read(dbg_curr_process->handle, addr, buffer, len, &rlen) && len == rlen;
 493 }
 494
 495 static inline BOOL dbg_write_memory(void* addr, const void* buffer, size_t len)
 496 {
 497     SIZE_T wlen;
 498     return dbg_curr_process->process_io->write(dbg_curr_process->handle, addr, buffer, len, &wlen) && len == wlen;
 499 }
 500
 501 static inline void* dbg_heap_realloc(void* buffer, size_t size)
 502 {
 503     return (buffer) ? HeapReAlloc(GetProcessHeap(), 0, buffer, size) :
 504         HeapAlloc(GetProcessHeap(), 0, size);
 505 }
 506
 507 extern struct dbg_internal_var          dbg_internal_vars[];
 508
 509 #define  DBG_IVARNAME(_var)     dbg_internal_var_##_var
 510 #define  DBG_IVARSTRUCT(_var)   dbg_internal_vars[DBG_IVARNAME(_var)]
 511 #define  DBG_IVAR(_var)         (*(DBG_IVARSTRUCT(_var).pval))
 512 #define  INTERNAL_VAR(_var,_val,_ref,itype) DBG_IVARNAME(_var),
 513 enum debug_int_var
 514 {
 515 #include "intvar.h"
 516    DBG_IV_LAST
 517 };
 518 #undef   INTERNAL_VAR
 519
 520 /* include CPU dependent bits */
 521 #include "be_cpu.h"
 522
 523 #endif  /* __WINE_DEBUGGER_H */