debugger/info.c

   1 /*
   2  * Wine debugger utility routines
   3  *
   4  * Copyright 1993 Eric Youngdale
   5  * Copyright 1995 Alexandre Julliard
   6  */
   7
   8 #include "config.h"
   9 #include <stdio.h>
  10 #include <stdlib.h>
  11 #include <string.h>
  12 #include "winbase.h"
  13 #include "wingdi.h"
  14 #include "winuser.h"
  15 #include "toolhelp.h"
  16 #include "debugger.h"
  17 #include "expr.h"
  18
  19 /***********************************************************************
  20  *           DEBUG_PrintBasic
  21  *
  22  * Implementation of the 'print' command.
  23  */
  24 void DEBUG_PrintBasic( const DBG_VALUE* value, int count, char format )
  25 {
  26   char        * default_format;
  27   long long int res;
  28
  29   assert(value->cookie == DV_TARGET || value->cookie == DV_HOST);
  30   if( value->type == NULL )
  31     {
  32       fprintf(stderr, "Unable to evaluate expression\n");
  33       return;
  34     }
  35
  36   default_format = NULL;
  37   res = DEBUG_GetExprValue(value, &default_format);
  38
  39   switch(format)
  40     {
  41     case 'x':
  42       if (value->addr.seg)
  43         {
  44           DEBUG_nchar += fprintf( stderr, "0x%04lx", (long unsigned int) res );
  45         }
  46       else
  47         {
  48           DEBUG_nchar += fprintf( stderr, "0x%08lx", (long unsigned int) res );
  49         }
  50       break;
  51
  52     case 'd':
  53       DEBUG_nchar += fprintf( stderr, "%ld\n", (long int) res );
  54       break;
  55
  56     case 'c':
  57       DEBUG_nchar += fprintf( stderr, "%d = '%c'",
  58                               (char)(res & 0xff), (char)(res & 0xff) );
  59       break;
  60
  61     case 'i':
  62     case 's':
  63     case 'w':
  64     case 'b':
  65       fprintf( stderr, "Format specifier '%c' is meaningless in 'print' command\n", format );
  66     case 0:
  67       if( default_format != NULL )
  68         {
  69           if (strstr(default_format, "%S") == NULL)
  70             {
  71                DEBUG_nchar += fprintf( stderr, default_format, res );
  72             }
  73           else
  74             {
  75                char*    ptr;
  76                int      state = 0;
  77
  78                /* FIXME: simplistic implementation for default_format being
  79                 * foo%Sbar => will print foo, then string then bar
  80                 */
  81                for (ptr = default_format; *ptr; ptr++)
  82                {
  83                   fprintf(stderr, "[%c]", *ptr);
  84
  85                   if (*ptr == '%') state++;
  86                   else if (state == 1)
  87                     {
  88                        if (*ptr == 'S')
  89                          {
  90                             char        ch;
  91                             char*       str = (char*)(long)res;
  92
  93                             for (; DEBUG_READ_MEM(str, &ch, 1) && ch; str++) {
  94                                fputc(ch, stderr);
  95                                DEBUG_nchar++;
  96                             }
  97                          }
  98                        else
  99                          {
 100                             /* shouldn't happen */
 101                             fputc('%', stderr);
 102                             fputc(*ptr, stderr);
 103                             DEBUG_nchar += 2;
 104                          }
 105                        state = 0;
 106                     }
 107                   else
 108                     {
 109                        fputc(*ptr, stderr);
 110                        DEBUG_nchar++;
 111                     }
 112                }
 113             }
 114         }
 115       break;
 116     }
 117 }
 118
 119
 120 /***********************************************************************
 121  *           DEBUG_PrintAddress
 122  *
 123  * Print an 16- or 32-bit address, with the nearest symbol if any.
 124  */
 125 struct symbol_info
 126 DEBUG_PrintAddress( const DBG_ADDR *addr, int addrlen, int flag )
 127 {
 128     struct symbol_info rtn;
 129
 130     const char *name = DEBUG_FindNearestSymbol( addr, flag, &rtn.sym, 0,
 131                                                 &rtn.list );
 132
 133     if (addr->seg) fprintf( stderr, "0x%04lx:", addr->seg&0xFFFF );
 134     if (addrlen == 16) fprintf( stderr, "0x%04lx", addr->off );
 135     else fprintf( stderr, "0x%08lx", addr->off );
 136     if (name) fprintf( stderr, " (%s)", name );
 137     return rtn;
 138 }
 139 /***********************************************************************
 140  *           DEBUG_PrintAddressAndArgs
 141  *
 142  * Print an 16- or 32-bit address, with the nearest symbol if any.
 143  * Similar to DEBUG_PrintAddress, but we print the arguments to
 144  * each function (if known).  This is useful in a backtrace.
 145  */
 146 struct symbol_info
 147 DEBUG_PrintAddressAndArgs( const DBG_ADDR *addr, int addrlen,
 148                            unsigned int ebp, int flag )
 149 {
 150     struct symbol_info rtn;
 151
 152     const char *name = DEBUG_FindNearestSymbol( addr, flag, &rtn.sym, ebp,
 153                                                 &rtn.list );
 154
 155     if (addr->seg) fprintf( stderr, "0x%04lx:", addr->seg );
 156     if (addrlen == 16) fprintf( stderr, "0x%04lx", addr->off );
 157     else fprintf( stderr, "0x%08lx", addr->off );
 158     if (name) fprintf( stderr, " (%s)", name );
 159
 160     return rtn;
 161 }
 162
 163
 164 /***********************************************************************
 165  *           DEBUG_Help
 166  *
 167  * Implementation of the 'help' command.
 168  */
 169 void DEBUG_Help(void)
 170 {
 171     int i = 0;
 172     static const char * const helptext[] =
 173 {
 174 "The commands accepted by the Wine debugger are a reasonable",
 175 "subset of the commands that gdb accepts.",
 176 "The commands currently are:",
 177 "  help                                   quit",
 178 "  break [*<addr>]                        delete break bpnum",
 179 "  disable bpnum                          enable bpnum",
 180 "  condition <bpnum> [<expr>]             pass",
 181 "  bt                                     cont [N]",
 182 "  step [N]                               next [N]",
 183 "  stepi [N]                              nexti [N]",
 184 "  x <addr>                               print <expr>",
 185 "  set <reg> = <expr>                     set *<addr> = <expr>",
 186 "  up                                     down",
 187 "  list <lines>                           disassemble [<addr>][,<addr>]",
 188 "  frame <n>                              finish",
 189 "  show dir                               dir <path>",
 190 "  display <expr>                         undisplay <disnum>",
 191 "  delete display <disnum>                debugmsg <class>[-+]<type>\n",
 192 "  mode [16,32]                           walk [wnd,class,queue,module,",
 193 "  whatis                                       process,modref <pid>]",
 194 "  info (see 'help info' for options)\n",
 195
 196 "The 'x' command accepts repeat counts and formats (including 'i') in the",
 197 "same way that gdb does.\n",
 198
 199 " The following are examples of legal expressions:",
 200 " $eax     $eax+0x3   0x1000   ($eip + 256)  *$eax   *($esp + 3)",
 201 " Also, a nm format symbol table can be read from a file using the",
 202 " symbolfile command.  Symbols can also be defined individually with",
 203 " the define command.",
 204 "",
 205 NULL
 206 };
 207
 208     while(helptext[i]) fprintf(stderr,"%s\n", helptext[i++]);
 209 }
 210
 211
 212 /***********************************************************************
 213  *           DEBUG_HelpInfo
 214  *
 215  * Implementation of the 'help info' command.
 216  */
 217 void DEBUG_HelpInfo(void)
 218 {
 219     int i = 0;
 220     static const char * const infotext[] =
 221 {
 222 "The info commands allow you to get assorted bits of interesting stuff",
 223 "to be displayed.  The options are:",
 224 "  info break           Dumps information about breakpoints",
 225 "  info display         Shows auto-display expressions in use",
 226 "  info locals          Displays values of all local vars for current frame",
 227 "  info maps            Dumps all virtual memory mappings",
 228 "  info module <handle> Displays internal module state",
 229 "  info queue <handle>  Displays internal queue state",
 230 "  info reg             Displays values in all registers at top of stack",
 231 "  info segments        Dumps information about all known segments",
 232 "  info share           Dumps information about shared libraries",
 233 "  info stack           Dumps information about top of stack",
 234 "  info wnd <handle>    Displays internal window state",
 235 "",
 236 NULL
 237 };
 238
 239     while(infotext[i]) fprintf(stderr,"%s\n", infotext[i++]);
 240 }
 241
 242 /* FIXME: merge InfoClass and InfoClass2 */
 243 void DEBUG_InfoClass(const char* name)
 244 {
 245    WNDCLASSEXA  wca;
 246
 247    if (!GetClassInfoExA(0, name, &wca)) {
 248       fprintf(stderr, "Cannot find class '%s'\n", name);
 249       return;
 250    }
 251
 252    fprintf(stderr,  "Class '%s':\n", name);
 253    fprintf(stderr,
 254            "style=%08x  wndProc=%08lx\n"
 255            "inst=%04x  icon=%04x  cursor=%04x  bkgnd=%04x\n"
 256            "clsExtra=%d  winExtra=%d\n",
 257            wca.style, (DWORD)wca.lpfnWndProc, wca.hInstance,
 258            wca.hIcon, wca.hCursor, wca.hbrBackground,
 259            wca.cbClsExtra, wca.cbWndExtra);
 260
 261    /* FIXME:
 262     * + print #windows (or even list of windows...)
 263     * + print extra bytes => this requires a window handle on this very class...
 264     */
 265 }
 266
 267 static  void DEBUG_InfoClass2(HWND hWnd, const char* name)
 268 {
 269    WNDCLASSEXA  wca;
 270
 271    if (!GetClassInfoExA(GetWindowLongA(hWnd, GWL_HINSTANCE), name, &wca)) {
 272       fprintf(stderr, "Cannot find class '%s'\n", name);
 273       return;
 274    }
 275
 276    fprintf(stderr,  "Class '%s':\n", name);
 277    fprintf(stderr,
 278            "style=%08x  wndProc=%08lx\n"
 279            "inst=%04x  icon=%04x  cursor=%04x  bkgnd=%04x\n"
 280            "clsExtra=%d  winExtra=%d\n",
 281            wca.style, (DWORD)wca.lpfnWndProc, wca.hInstance,
 282            wca.hIcon, wca.hCursor, wca.hbrBackground,
 283            wca.cbClsExtra, wca.cbWndExtra);
 284
 285    if (wca.cbClsExtra) {
 286       int               i;
 287       WORD              w;
 288
 289       fprintf(stderr,  "Extra bytes:" );
 290       for (i = 0; i < wca.cbClsExtra / 2; i++) {
 291          w = GetClassWord(hWnd, i * 2);
 292          /* FIXME: depends on i386 endian-ity */
 293          fprintf(stderr,  " %02x", HIBYTE(w));
 294          fprintf(stderr,  " %02x", LOBYTE(w));
 295       }
 296       fprintf(stderr,  "\n" );
 297     }
 298     fprintf(stderr,  "\n" );
 299 }
 300
 301 struct class_walker {
 302    ATOM*        table;
 303    int          used;
 304    int          alloc;
 305 };
 306
 307 static  void DEBUG_WalkClassesHelper(HWND hWnd, struct class_walker* cw)
 308 {
 309    char clsName[128];
 310    int  i;
 311    ATOM atom;
 312    HWND child;
 313
 314    if (!GetClassNameA(hWnd, clsName, sizeof(clsName)))
 315       return;
 316    if ((atom = FindAtomA(clsName)) == 0)
 317       return;
 318
 319    for (i = 0; i < cw->used; i++) {
 320       if (cw->table[i] == atom)
 321          break;
 322    }
 323    if (i == cw->used) {
 324       if (cw->used >= cw->alloc) {
 325          cw->alloc += 16;
 326          cw->table = DBG_realloc(cw->table, cw->alloc * sizeof(ATOM));
 327       }
 328       cw->table[cw->used++] = atom;
 329       DEBUG_InfoClass2(hWnd, clsName);
 330    }
 331    do {
 332       if ((child = GetWindow(hWnd, GW_CHILD)) != 0)
 333          DEBUG_WalkClassesHelper(child, cw);
 334    } while ((hWnd = GetWindow(hWnd, GW_HWNDNEXT)) != 0);
 335 }
 336
 337 void DEBUG_WalkClasses(void)
 338 {
 339    struct class_walker cw;
 340
 341    cw.table = NULL;
 342    cw.used = cw.alloc = 0;
 343    DEBUG_WalkClassesHelper(GetDesktopWindow(), &cw);
 344    DBG_free(cw.table);
 345 }
 346
 347 void DEBUG_DumpQueue(DWORD q)
 348 {
 349    fprintf(stderr, "No longer doing info queue '0x%08lx'\n", q);
 350 }
 351
 352 void DEBUG_WalkQueues(void)
 353 {
 354    fprintf(stderr, "No longer walking queues list\n");
 355 }
 356
 357 void DEBUG_InfoWindow(HWND hWnd)
 358 {
 359    char clsName[128];
 360    char wndName[128];
 361    RECT clientRect;
 362    RECT windowRect;
 363    int  i;
 364    WORD w;
 365
 366    if (!GetClassNameA(hWnd, clsName, sizeof(clsName)))
 367        strcpy(clsName, "-- Unknown --");
 368    if (!GetWindowTextA(hWnd, wndName, sizeof(wndName)))
 369       strcpy(wndName, "-- Empty --");
 370    if (!GetClientRect(hWnd, &clientRect))
 371       SetRectEmpty(&clientRect);
 372    if (!GetWindowRect(hWnd, &windowRect))
 373       SetRectEmpty(&windowRect);
 374
 375    /* FIXME missing fields: hmemTaskQ, hrgnUpdate, dce, flags, pProp, scroll */
 376    fprintf(stderr,
 377            "next=0x%04x  child=0x%04x  parent=0x%04x  owner=0x%04x  class='%s'\n"
 378            "inst=%08lx  active=%04x  idmenu=%08lx\n"
 379            "style=%08lx  exstyle=%08lx  wndproc=%08lx  text='%s'\n"
 380            "client=%d,%d-%d,%d  window=%d,%d-%d,%d sysmenu=%04x\n",
 381            GetWindow(hWnd, GW_HWNDNEXT),
 382            GetWindow(hWnd, GW_CHILD),
 383            GetParent(hWnd),
 384            GetWindow(hWnd, GW_OWNER),
 385            clsName,
 386            GetWindowLongA(hWnd, GWL_HINSTANCE),
 387            GetLastActivePopup(hWnd),
 388            GetWindowLongA(hWnd, GWL_ID),
 389            GetWindowLongA(hWnd, GWL_STYLE),
 390            GetWindowLongA(hWnd, GWL_EXSTYLE),
 391            GetWindowLongA(hWnd, GWL_WNDPROC),
 392            wndName,
 393            clientRect.left, clientRect.top, clientRect.right, clientRect.bottom,
 394            windowRect.left, windowRect.top, windowRect.right, windowRect.bottom,
 395            GetSystemMenu(hWnd, FALSE));
 396
 397     if (GetClassLongA(hWnd, GCL_CBWNDEXTRA)) {
 398         fprintf(stderr,  "Extra bytes:" );
 399         for (i = 0; i < GetClassLongA(hWnd, GCL_CBWNDEXTRA) / 2; i++) {
 400            w = GetWindowWord(hWnd, i * 2);
 401            /* FIXME: depends on i386 endian-ity */
 402            fprintf(stderr,  " %02x", HIBYTE(w));
 403            fprintf(stderr,  " %02x", LOBYTE(w));
 404         }
 405         fprintf(stderr, "\n");
 406     }
 407     fprintf(stderr, "\n");
 408 }
 409
 410 void DEBUG_WalkWindows(HWND hWnd, int indent)
 411 {
 412    char clsName[128];
 413    char wndName[128];
 414    HWND child;
 415
 416    if (!IsWindow(hWnd))
 417       hWnd = GetDesktopWindow();
 418
 419     if (!indent)  /* first time around */
 420        fprintf(stderr,
 421                "%-16.16s %-17.17s %-8.8s %s\n",
 422                "hwnd", "Class Name", " Style", " WndProc Text");
 423
 424     do {
 425        if (!GetClassNameA(hWnd, clsName, sizeof(clsName)))
 426           strcpy(clsName, "-- Unknown --");
 427        if (!GetWindowTextA(hWnd, wndName, sizeof(wndName)))
 428           strcpy(wndName, "-- Empty --");
 429
 430        /* FIXME: missing hmemTaskQ */
 431        fprintf(stderr, "%*s%04x%*s", indent, "", hWnd, 13-indent,"");
 432        fprintf(stderr, "%-17.17s %08lx %08lx %.14s\n",
 433                clsName, GetWindowLongA(hWnd, GWL_STYLE),
 434                GetWindowLongA(hWnd, GWL_WNDPROC), wndName);
 435
 436        if ((child = GetWindow(hWnd, GW_CHILD)) != 0)
 437           DEBUG_WalkWindows(child, indent + 1 );
 438     } while ((hWnd = GetWindow(hWnd, GW_HWNDNEXT)) != 0);
 439 }
 440
 441 void DEBUG_WalkProcess(void)
 442 {
 443    fprintf(stderr, "No longer walking processes list\n");
 444 }
 445
 446 void DEBUG_WalkModref(DWORD p)
 447 {
 448    fprintf(stderr, "No longer walking module references list\n");
 449 }
 450
 451 void DEBUG_InfoSegments(DWORD start, int length)
 452 {
 453     char        flags[3];
 454     DWORD       i;
 455     LDT_ENTRY   le;
 456
 457     if (length == -1) length = (8192 - start);
 458
 459     for (i = start; i < start + length; i++)
 460     {
 461        if (!GetThreadSelectorEntry(DEBUG_CurrThread->handle, (i << 3)|7, &le))
 462           continue;
 463
 464         if (le.HighWord.Bits.Type & 0x08)
 465         {
 466             flags[0] = (le.HighWord.Bits.Type & 0x2) ? 'r' : '-';
 467             flags[1] = '-';
 468             flags[2] = 'x';
 469         }
 470         else
 471         {
 472             flags[0] = 'r';
 473             flags[1] = (le.HighWord.Bits.Type & 0x2) ? 'w' : '-';
 474             flags[2] = '-';
 475         }
 476         fprintf(stderr,
 477                 "%04lx: sel=%04lx base=%08x limit=%08x %d-bit %c%c%c\n",
 478                 i, (i<<3)|7,
 479                 (le.HighWord.Bits.BaseHi << 24) +
 480                     (le.HighWord.Bits.BaseMid << 16) + le.BaseLow,
 481                 ((le.HighWord.Bits.LimitHi << 8) + le.LimitLow) <<
 482                     (le.HighWord.Bits.Granularity ? 12 : 0),
 483                 le.HighWord.Bits.Default_Big ? 32 : 16,
 484                 flags[0], flags[1], flags[2] );
 485     }
 486 }
 487
 488 void DEBUG_InfoVirtual(void)
 489 {
 490    fprintf(stderr, "No longer providing virtual mapping information\n");
 491 }