debugger/module.c

   1 /* -*- tab-width: 8; c-basic-offset: 4 -*- */
   2 /*
   3  * File module.c - module handling for the wine debugger
   4  *
   5  * Copyright (C) 1993, Eric Youngdale.
   6  *               2000, Eric Pouech
   7  */
   8 #include "config.h"
   9 #include <stdlib.h>
  10 #include <stdio.h>
  11 #include <string.h>
  12 #include "debugger.h"
  13 #include "toolhelp.h"
  14 #include "wingdi.h"
  15 #include "winuser.h"
  16
  17 /***********************************************************************
  18  * Creates and links a new module to the current process
  19  *
  20  */
  21 DBG_MODULE*     DEBUG_AddModule(const char* name, enum DbgModuleType type,
  22                                 void* mod_addr, u_long size, HMODULE hmodule)
  23 {
  24     DBG_MODULE* wmod;
  25
  26     if (!(wmod = (DBG_MODULE*)DBG_alloc(sizeof(*wmod))))
  27         return NULL;
  28
  29     memset(wmod, 0, sizeof(*wmod));
  30
  31     wmod->dil = DIL_DEFERRED;
  32     wmod->main = (DEBUG_CurrProcess->num_modules == 0);
  33     wmod->type = type;
  34     wmod->load_addr = mod_addr;
  35     wmod->size = size;
  36     wmod->handle = hmodule;
  37     wmod->dbg_index = DEBUG_CurrProcess->next_index;
  38     wmod->module_name = DBG_strdup(name);
  39
  40     DEBUG_CurrProcess->modules = DBG_realloc(DEBUG_CurrProcess->modules,
  41                                              ++DEBUG_CurrProcess->num_modules * sizeof(DBG_MODULE*));
  42     DEBUG_CurrProcess->modules[DEBUG_CurrProcess->num_modules - 1] = wmod;
  43
  44     return wmod;
  45 }
  46
  47 /***********************************************************************
  48  *      DEBUG_FindModuleByName
  49  *
  50  */
  51 DBG_MODULE*     DEBUG_FindModuleByName(const char* name, enum DbgModuleType type)
  52 {
  53      int                i;
  54      DBG_MODULE**       amod = DEBUG_CurrProcess->modules;
  55
  56      for (i = 0; i < DEBUG_CurrProcess->num_modules; i++) {
  57          if ((type == DMT_UNKNOWN || type == amod[i]->type) &&
  58              !strcasecmp(name, amod[i]->module_name))
  59              return amod[i];
  60      }
  61      return NULL;
  62 }
  63
  64 /***********************************************************************
  65  *      DEBUG_FindModuleByAddr
  66  *
  67  * either the addr where module is loaded, or any address inside the
  68  * module
  69  */
  70 DBG_MODULE*     DEBUG_FindModuleByAddr(void* addr, enum DbgModuleType type)
  71 {
  72      int                i;
  73      DBG_MODULE**       amod = DEBUG_CurrProcess->modules;
  74      DBG_MODULE*        res = NULL;
  75
  76      for (i = 0; i < DEBUG_CurrProcess->num_modules; i++) {
  77          if ((type == DMT_UNKNOWN || type == amod[i]->type) &&
  78              (u_long)addr >= (u_long)amod[i]->load_addr &&
  79              (!res || res->load_addr < amod[i]->load_addr))
  80              res = amod[i];
  81      }
  82     return res;
  83 }
  84
  85 /***********************************************************************
  86  *              DEBUG_FindModuleByHandle
  87  */
  88 DBG_MODULE*     DEBUG_FindModuleByHandle(HANDLE handle, enum DbgModuleType type)
  89 {
  90      int                i;
  91      DBG_MODULE**       amod = DEBUG_CurrProcess->modules;
  92
  93      for (i = 0; i < DEBUG_CurrProcess->num_modules; i++) {
  94          if ((type == DMT_UNKNOWN || type == amod[i]->type) &&
  95              handle == amod[i]->handle)
  96              return amod[i];
  97      }
  98      return NULL;
  99 }
 100
 101 /***********************************************************************
 102  *              DEBUG_GetProcessMainModule
 103  */
 104 DBG_MODULE*     DEBUG_GetProcessMainModule(DBG_PROCESS* process)
 105 {
 106     if (!process || !process->num_modules)      return NULL;
 107
 108     /* main module is the first to be loaded on a given process, so it's the first
 109      * in the array */
 110     assert(process->modules[0]->main);
 111     return process->modules[0];
 112 }
 113
 114 /***********************************************************************
 115  *                      DEBUG_RegisterELFModule
 116  *
 117  * ELF modules are also entered into the list - this is so that we
 118  * can make 'info shared' types of displays possible.
 119  */
 120 DBG_MODULE* DEBUG_RegisterELFModule(u_long load_addr, u_long size, const char* name)
 121 {
 122     DBG_MODULE* wmod = DEBUG_AddModule(name, DMT_ELF, (void*)load_addr, size, 0);
 123
 124     if (!wmod) return NULL;
 125
 126     DEBUG_CurrProcess->next_index++;
 127
 128     return wmod;
 129 }
 130
 131 /***********************************************************************
 132  *                      DEBUG_RegisterPEModule
 133  *
 134  */
 135 DBG_MODULE* DEBUG_RegisterPEModule(HMODULE hModule, u_long load_addr, u_long size, const char *module_name)
 136 {
 137     DBG_MODULE* wmod = DEBUG_AddModule(module_name, DMT_PE, (void*)load_addr, size, hModule);
 138
 139     if (!wmod) return NULL;
 140
 141     DEBUG_CurrProcess->next_index++;
 142
 143     return wmod;
 144 }
 145
 146 /***********************************************************************
 147  *                      DEBUG_RegisterNEModule
 148  *
 149  */
 150 DBG_MODULE* DEBUG_RegisterNEModule(HMODULE hModule, void* load_addr, u_long size, const char *module_name)
 151 {
 152     DBG_MODULE* wmod = DEBUG_AddModule(module_name, DMT_NE, load_addr, size, hModule);
 153
 154     if (!wmod) return NULL;
 155
 156     DEBUG_CurrProcess->next_index++;
 157     return wmod;
 158 }
 159
 160 #if 0
 161 /***********************************************************************
 162  *           DEBUG_GetEP16
 163  *
 164  * Helper function fo DEBUG_LoadModuleEPs16:
 165  *      finds the address of a given entry point from a given module
 166  */
 167 static BOOL DEBUG_GetEP16(char* moduleAddr, const NE_MODULE* module,
 168                           WORD ordinal, DBG_ADDR* addr)
 169 {
 170     void*               idx;
 171     ET_ENTRY            entry;
 172     ET_BUNDLE           bundle;
 173     SEGTABLEENTRY       ste;
 174
 175     bundle.next = module->entry_table;
 176     do {
 177         if (!bundle.next)
 178             return FALSE;
 179         idx = moduleAddr + bundle.next;
 180         if (!DEBUG_READ_MEM_VERBOSE(idx, &bundle, sizeof(bundle)))
 181             return FALSE;
 182     } while ((ordinal < bundle.first + 1) || (ordinal > bundle.last));
 183
 184     if (!DEBUG_READ_MEM_VERBOSE((char*)idx + sizeof(ET_BUNDLE) +
 185                                 (ordinal - bundle.first - 1) * sizeof(ET_ENTRY),
 186                                 &entry, sizeof(ET_ENTRY)))
 187         return FALSE;
 188
 189     addr->seg = entry.segnum;
 190     addr->off = entry.offs;
 191
 192     if (addr->seg == 0xfe) addr->seg = 0xffff;  /* constant entry */
 193     else {
 194         if (!DEBUG_READ_MEM_VERBOSE(moduleAddr + module->seg_table +
 195                                     sizeof(ste) * (addr->seg - 1),
 196                                     &ste, sizeof(ste)))
 197             return FALSE;
 198         addr->seg = GlobalHandleToSel16(ste.hSeg);
 199     }
 200     return TRUE;
 201 }
 202
 203 /***********************************************************************
 204  *           DEBUG_LoadModule16
 205  *
 206  * Load the entry points of a Win16 module into the hash table.
 207  */
 208 static void DEBUG_LoadModule16(HMODULE hModule, NE_MODULE* module, char* moduleAddr, const char* name)
 209 {
 210     DBG_VALUE   value;
 211     BYTE        buf[1 + 256 + 2];
 212     char        epname[512];
 213     char*       cpnt;
 214     DBG_MODULE* wmod;
 215
 216     wmod = DEBUG_RegisterNEModule(hModule, moduleAddr, name);
 217
 218     value.type = NULL;
 219     value.cookie = DV_TARGET;
 220     value.addr.seg = 0;
 221     value.addr.off = 0;
 222
 223     cpnt = moduleAddr + module->name_table;
 224
 225     /* First search the resident names */
 226
 227     /* skip module name */
 228     if (!DEBUG_READ_MEM_VERBOSE(cpnt, buf, sizeof(buf)) || !buf[0])
 229         return;
 230     cpnt += 1 + buf[0] + sizeof(WORD);
 231
 232     while (DEBUG_READ_MEM_VERBOSE(cpnt, buf, sizeof(buf)) && buf[0]) {
 233         sprintf(epname, "%s.%.*s", name, buf[0], &buf[1]);
 234         if (DEBUG_GetEP16(moduleAddr, module, *(WORD*)&buf[1 + buf[0]], &value.addr)) {
 235             DEBUG_AddSymbol(epname, &value, NULL, SYM_WIN32 | SYM_FUNC);
 236         }
 237         cpnt += buf[0] + 1 + sizeof(WORD);
 238     }
 239
 240     /* Now search the non-resident names table */
 241     if (!module->nrname_handle) return;  /* No non-resident table */
 242     cpnt = (char *)GlobalLock16(module->nrname_handle);
 243     while (DEBUG_READ_MEM_VERBOSE(cpnt, buf, sizeof(buf)) && buf[0]) {
 244         sprintf(epname, "%s.%.*s", name, buf[0], &buf[1]);
 245         if (DEBUG_GetEP16(moduleAddr, module, *(WORD*)&buf[1 + buf[0]], &value.addr)) {
 246             DEBUG_AddSymbol(epname, &value, NULL, SYM_WIN32 | SYM_FUNC);
 247         }
 248         cpnt += buf[0] + 1 + sizeof(WORD);
 249     }
 250     GlobalUnlock16(module->nrname_handle);
 251 }
 252 #endif
 253
 254 /***********************************************************************
 255  *                      DEBUG_LoadModule32
 256  */
 257 void    DEBUG_LoadModule32(const char* name, HANDLE hFile, DWORD base)
 258 {
 259      IMAGE_NT_HEADERS           pe_header;
 260      DWORD                      nth_ofs;
 261      DBG_MODULE*                wmod = NULL;
 262      int                        i;
 263      IMAGE_SECTION_HEADER       pe_seg;
 264      DWORD                      pe_seg_ofs;
 265      DWORD                      size = 0;
 266      enum DbgInfoLoad           dil = DIL_ERROR;
 267
 268      /* grab PE Header */
 269      if (!DEBUG_READ_MEM_VERBOSE((void*)(base + OFFSET_OF(IMAGE_DOS_HEADER, e_lfanew)),
 270                                  &nth_ofs, sizeof(nth_ofs)) ||
 271          !DEBUG_READ_MEM_VERBOSE((void*)(base + nth_ofs), &pe_header, sizeof(pe_header)))
 272          return;
 273
 274      pe_seg_ofs = nth_ofs + OFFSET_OF(IMAGE_NT_HEADERS, OptionalHeader) +
 275          pe_header.FileHeader.SizeOfOptionalHeader;
 276
 277      for (i = 0; i < pe_header.FileHeader.NumberOfSections; i++, pe_seg_ofs += sizeof(pe_seg)) {
 278          if (!DEBUG_READ_MEM_VERBOSE((void*)(base + pe_seg_ofs), &pe_seg, sizeof(pe_seg)))
 279              continue;
 280          if (size < pe_seg.VirtualAddress + pe_seg.SizeOfRawData)
 281              size = pe_seg.VirtualAddress + pe_seg.SizeOfRawData;
 282      }
 283
 284      /* FIXME: we make the assumption that hModule == base */
 285      wmod = DEBUG_RegisterPEModule((HMODULE)base, base, size, name);
 286      if (wmod) {
 287          dil = DEBUG_RegisterStabsDebugInfo(wmod, hFile, &pe_header, nth_ofs);
 288          if (dil != DIL_LOADED)
 289              dil = DEBUG_RegisterMSCDebugInfo(wmod, hFile, &pe_header, nth_ofs);
 290          if (dil != DIL_LOADED)
 291              dil = DEBUG_RegisterPEDebugInfo(wmod, hFile, &pe_header, nth_ofs);
 292      }
 293
 294      if (wmod) wmod->dil = dil;
 295      DEBUG_ReportDIL(dil, "32bit DLL", name, base);
 296 }
 297
 298 /***********************************************************************
 299  *                      DEBUG_RegisterPEDebugInfo
 300  */
 301 enum DbgInfoLoad        DEBUG_RegisterPEDebugInfo(DBG_MODULE* wmod, HANDLE hFile,
 302                                                   void* _nth, unsigned long nth_ofs)
 303 {
 304     DBG_VALUE                   value;
 305     char                        buffer[512];
 306     char                        bufstr[256];
 307     int                         i;
 308     IMAGE_SECTION_HEADER        pe_seg;
 309     DWORD                       pe_seg_ofs;
 310     IMAGE_DATA_DIRECTORY        dir;
 311     DWORD                       dir_ofs;
 312     const char*                 prefix;
 313     IMAGE_NT_HEADERS*           nth = (PIMAGE_NT_HEADERS)_nth;
 314     DWORD                       base = (u_long)wmod->load_addr;
 315
 316     value.type = NULL;
 317     value.cookie = DV_TARGET;
 318     value.addr.seg = 0;
 319     value.addr.off = 0;
 320
 321     /* Add start of DLL */
 322     value.addr.off = base;
 323     if ((prefix = strrchr(wmod->module_name, '\\' ))) prefix++;
 324     else prefix = wmod->module_name;
 325
 326     DEBUG_AddSymbol(prefix, &value, NULL, SYM_WIN32 | SYM_FUNC);
 327
 328     /* Add entry point */
 329     snprintf(buffer, sizeof(buffer), "%s.EntryPoint", prefix);
 330     value.addr.off = base + nth->OptionalHeader.AddressOfEntryPoint;
 331     DEBUG_AddSymbol(buffer, &value, NULL, SYM_WIN32 | SYM_FUNC);
 332
 333     /* Add start of sections */
 334     pe_seg_ofs = nth_ofs + OFFSET_OF(IMAGE_NT_HEADERS, OptionalHeader) +
 335         nth->FileHeader.SizeOfOptionalHeader;
 336
 337     for (i = 0; i < nth->FileHeader.NumberOfSections; i++, pe_seg_ofs += sizeof(pe_seg)) {
 338         if (!DEBUG_READ_MEM_VERBOSE((void*)(base + pe_seg_ofs), &pe_seg, sizeof(pe_seg)))
 339             continue;
 340         snprintf(buffer, sizeof(buffer), "%s.%s", prefix, pe_seg.Name);
 341         value.addr.off = base + pe_seg.VirtualAddress;
 342         DEBUG_AddSymbol(buffer, &value, NULL, SYM_WIN32 | SYM_FUNC);
 343     }
 344
 345     /* Add exported functions */
 346     dir_ofs = nth_ofs +
 347         OFFSET_OF(IMAGE_NT_HEADERS,
 348                   OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT]);
 349     if (DEBUG_READ_MEM_VERBOSE((void*)(base + dir_ofs), &dir, sizeof(dir)) && dir.Size) {
 350         IMAGE_EXPORT_DIRECTORY  exports;
 351         WORD*                   ordinals = NULL;
 352         void**                  functions = NULL;
 353         DWORD*                  names = NULL;
 354         int                     j;
 355
 356         if (DEBUG_READ_MEM_VERBOSE((void*)(base + dir.VirtualAddress),
 357                                    &exports, sizeof(exports)) &&
 358
 359             ((functions = DBG_alloc(sizeof(functions[0]) * exports.NumberOfFunctions))) &&
 360             DEBUG_READ_MEM_VERBOSE((void*)(base + (DWORD)exports.AddressOfFunctions),
 361                                    functions, sizeof(functions[0]) * exports.NumberOfFunctions) &&
 362
 363             ((ordinals = DBG_alloc(sizeof(ordinals[0]) * exports.NumberOfNames))) &&
 364             DEBUG_READ_MEM_VERBOSE((void*)(base + (DWORD)exports.AddressOfNameOrdinals),
 365                                    ordinals, sizeof(ordinals[0]) * exports.NumberOfNames) &&
 366
 367             ((names = DBG_alloc(sizeof(names[0]) * exports.NumberOfNames))) &&
 368             DEBUG_READ_MEM_VERBOSE((void*)(base + (DWORD)exports.AddressOfNames),
 369                                    names, sizeof(names[0]) * exports.NumberOfNames)) {
 370
 371             for (i = 0; i < exports.NumberOfNames; i++) {
 372                 if (!names[i] ||
 373                     !DEBUG_READ_MEM_VERBOSE((void*)(base + names[i]), bufstr, sizeof(bufstr)))
 374                     continue;
 375                 bufstr[sizeof(bufstr) - 1] = 0;
 376                 snprintf(buffer, sizeof(buffer), "%s.%s", prefix, bufstr);
 377                 value.addr.off = base + (DWORD)functions[ordinals[i]];
 378                 DEBUG_AddSymbol(buffer, &value, NULL, SYM_WIN32 | SYM_FUNC);
 379             }
 380
 381             for (i = 0; i < exports.NumberOfFunctions; i++) {
 382                 if (!functions[i]) continue;
 383                 /* Check if we already added it with a name */
 384                 for (j = 0; j < exports.NumberOfNames; j++)
 385                     if ((ordinals[j] == i) && names[j]) break;
 386                 if (j < exports.NumberOfNames) continue;
 387                 snprintf(buffer, sizeof(buffer), "%s.%ld", prefix, i + exports.Base);
 388                 value.addr.off = base + (DWORD)functions[i];
 389                 DEBUG_AddSymbol(buffer, &value, NULL, SYM_WIN32 | SYM_FUNC);
 390             }
 391         }
 392         DBG_free(functions);
 393         DBG_free(ordinals);
 394         DBG_free(names);
 395     }
 396     /* no real debug info, only entry points */
 397     return DIL_NOINFO;
 398 }
 399
 400 /***********************************************************************
 401  *              DEBUG_LoadEntryPoints
 402  *
 403  * Load the entry points of all the modules into the hash table.
 404  */
 405 int DEBUG_LoadEntryPoints(const char* pfx)
 406 {
 407     int         first = 0;
 408     /* FIXME: with address space separation in space, this is plain wrong
 409      *        it requires the 16 bit WOW debugging interface...
 410      */
 411 #if 0
 412     MODULEENTRY entry;
 413     NE_MODULE   module;
 414     void*       moduleAddr;
 415     int         rowcount = 0;
 416     int         len;
 417
 418     /* FIXME: we assume that a module is never removed from memory */
 419     /* FIXME: this is (currently plain wrong when debugger is started by
 420      *        attaching to an existing program => the 16 bit modules will
 421      *        not be shared... not much to do on debugger side... sigh
 422      */
 423     if (ModuleFirst16(&entry)) do {
 424         if (DEBUG_FindModuleByName(entry.szModule, DM_TYPE_UNKNOWN) ||
 425             !(moduleAddr = NE_GetPtr(entry.hModule)) ||
 426             !DEBUG_READ_MEM_VERBOSE(moduleAddr, &module, sizeof(module)) ||
 427             (module.flags & NE_FFLAGS_WIN32) /* NE module */)
 428             continue;
 429         if (!first) {
 430             if (pfx) DEBUG_Printf(DBG_CHN_MESG, pfx);
 431             DEBUG_Printf(DBG_CHN_MESG, "   ");
 432             rowcount = 3 + (pfx ? strlen(pfx) : 0);
 433             first = 1;
 434         }
 435
 436         len = strlen(entry.szModule);
 437         if ((rowcount + len) > 76) {
 438             DEBUG_Printf(DBG_CHN_MESG, "\n   ");
 439             rowcount = 3;
 440         }
 441         DEBUG_Printf(DBG_CHN_MESG, " %s", entry.szModule);
 442         rowcount += len + 1;
 443
 444         DEBUG_LoadModule16(entry.hModule, &module, moduleAddr, entry.szModule);
 445     } while (ModuleNext16(&entry));
 446 #endif
 447
 448     if (first) DEBUG_Printf(DBG_CHN_MESG, "\n");
 449     return first;
 450 }
 451
 452 void    DEBUG_ReportDIL(enum DbgInfoLoad dil, const char* pfx, const char* filename, DWORD load_addr)
 453 {
 454     const char* fmt;
 455
 456     switch (dil) {
 457     case DIL_DEFERRED:
 458         fmt = "Deferring debug information loading for %s '%s' (0x%08x)\n";
 459         break;
 460     case DIL_LOADED:
 461         fmt = "Loaded debug information from %s '%s' (0x%08x)\n";
 462         break;
 463     case DIL_NOINFO:
 464         fmt = "No debug information in %s '%s' (0x%08x)\n";
 465         break;
 466     case DIL_ERROR:
 467         fmt = "Can't find file for %s '%s' (0x%08x)\n";
 468         break;
 469     default:
 470         DEBUG_Printf(DBG_CHN_ERR, "Oooocch (%d)\n", dil);
 471         return;
 472     }
 473
 474     DEBUG_Printf(DBG_CHN_MESG, fmt, pfx, filename, load_addr);
 475 }
 476
 477 static const char*      DEBUG_GetModuleType(enum DbgModuleType type)
 478 {
 479     switch (type) {
 480     case DMT_NE:    return "NE";
 481     case DMT_PE:    return "PE";
 482     case DMT_ELF:   return "ELF";
 483     default:        return "???";;
 484     }
 485 }
 486
 487 static const char*      DEBUG_GetDbgInfo(enum DbgInfoLoad dil)
 488 {
 489     switch (dil) {
 490     case DIL_LOADED:    return "loaded";
 491     case DIL_DEFERRED:  return "deferred";
 492     case DIL_NOINFO:    return "none";
 493     case DIL_ERROR:     return "error";
 494     default:            return "?";
 495     }
 496 }
 497
 498 /***********************************************************************
 499  *           DEBUG_ModuleCompare
 500  *
 501  * returns -1 is p1 < p2, 0 is p1 == p2, +1 if p1 > p2
 502  * order used is order on load_addr of a module
 503  */
 504 static int      DEBUG_ModuleCompare(const void* p1, const void* p2)
 505 {
 506     return (*((const DBG_MODULE**)p1))->load_addr -
 507            (*((const DBG_MODULE**)p2))->load_addr;
 508 }
 509
 510 /***********************************************************************
 511  *           DEBUG_IsContainer
 512  *
 513  * returns TRUE is wmod_child is contained (inside bounds) of wmod_cntnr
 514  */
 515 static BOOL inline DEBUG_IsContainer(const DBG_MODULE* wmod_cntnr,
 516                                      const DBG_MODULE* wmod_child)
 517 {
 518     return wmod_cntnr->load_addr < wmod_child->load_addr &&
 519         (DWORD)wmod_cntnr->load_addr + wmod_cntnr->size >
 520         (DWORD)wmod_child->load_addr + wmod_child->size;
 521 }
 522
 523 static void     DEBUG_InfoShareModule(const DBG_MODULE* module, int ident)
 524 {
 525     if (ident) DEBUG_Printf(DBG_CHN_MESG, "  \\-");
 526     DEBUG_Printf(DBG_CHN_MESG, "%s\t0x%08lx-%08lx\t%s\n",
 527                  DEBUG_GetModuleType(module->type),
 528                  (DWORD)module->load_addr, (DWORD)module->load_addr + module->size,
 529                  module->module_name);
 530 }
 531
 532 /***********************************************************************
 533  *           DEBUG_InfoShare
 534  *
 535  * Display shared libarary information.
 536  */
 537 void DEBUG_InfoShare(void)
 538 {
 539     DBG_MODULE**        ref;
 540     int                 i, j;
 541
 542     ref = DBG_alloc(sizeof(DBG_MODULE*) * DEBUG_CurrProcess->num_modules);
 543     if (!ref) return;
 544
 545     DEBUG_Printf(DBG_CHN_MESG, "Module\tAddress\t\t\tName\t%d modules\n",
 546                  DEBUG_CurrProcess->num_modules);
 547
 548     memcpy(ref, DEBUG_CurrProcess->modules,
 549            sizeof(DBG_MODULE*) * DEBUG_CurrProcess->num_modules);
 550     qsort(ref, DEBUG_CurrProcess->num_modules, sizeof(DBG_MODULE*),
 551           DEBUG_ModuleCompare);
 552     for (i = 0; i < DEBUG_CurrProcess->num_modules; i++) {
 553         switch (ref[i]->type) {
 554         case DMT_ELF:
 555             DEBUG_InfoShareModule(ref[i], 0);
 556             for (j = 0; j < DEBUG_CurrProcess->num_modules; j++) {
 557                 if (ref[j]->type != DMT_ELF && DEBUG_IsContainer(ref[i], ref[j]))
 558                     DEBUG_InfoShareModule(ref[j], 1);
 559             }
 560             break;
 561         case DMT_NE:
 562         case DMT_PE:
 563             /* check module is not in ELF */
 564             for (j = 0; j < DEBUG_CurrProcess->num_modules; j++) {
 565                 if (ref[j]->type == DMT_ELF &&
 566                     DEBUG_IsContainer(ref[j], ref[i]))
 567                     break;
 568             }
 569             if (j >= DEBUG_CurrProcess->num_modules)
 570                 DEBUG_InfoShareModule(ref[i], 0);
 571             break;
 572         default:
 573             DEBUG_Printf(DBG_CHN_ERR, "Unknown type (%d)\n", ref[i]->type);
 574         }
 575     }
 576     DBG_free(ref);
 577 }
 578
 579 /***********************************************************************
 580  *           DEBUG_DumpModule
 581  * Display information about a given module (DLL or EXE)
 582  */
 583 void DEBUG_DumpModule(DWORD mod)
 584 {
 585     DBG_MODULE* wmod;
 586
 587     if (!(wmod = DEBUG_FindModuleByHandle(mod, DMT_UNKNOWN)) &&
 588         !(wmod = DEBUG_FindModuleByAddr((void*)mod, DMT_UNKNOWN))) {
 589         DEBUG_Printf(DBG_CHN_MESG, "'0x%08lx' is not a valid module handle or address\n", mod);
 590         return;
 591     }
 592
 593     DEBUG_Printf(DBG_CHN_MESG, "Module '%s' (handle=0x%08x) 0x%08lx-0x%08lx (%s, debug info %s)\n",
 594                  wmod->module_name, wmod->handle, (DWORD)wmod->load_addr,
 595                  (DWORD)wmod->load_addr + wmod->size,
 596                  DEBUG_GetModuleType(wmod->type), DEBUG_GetDbgInfo(wmod->dil));
 597 }
 598
 599 /***********************************************************************
 600  *           DEBUG_WalkModules
 601  *
 602  * Display information about all modules (DLLs and EXEs)
 603  */
 604 void DEBUG_WalkModules(void)
 605 {
 606     DBG_MODULE**        amod;
 607     int                 i;
 608
 609     DEBUG_Printf(DBG_CHN_MESG, "Address\t\t\tModule\tName\n");
 610
 611     amod = DBG_alloc(sizeof(DBG_MODULE*) * DEBUG_CurrProcess->num_modules);
 612     if (!amod) return;
 613
 614     memcpy(amod, DEBUG_CurrProcess->modules,
 615            sizeof(DBG_MODULE*) * DEBUG_CurrProcess->num_modules);
 616     qsort(amod, DEBUG_CurrProcess->num_modules, sizeof(DBG_MODULE*),
 617           DEBUG_ModuleCompare);
 618     for (i = 0; i < DEBUG_CurrProcess->num_modules; i++) {
 619         if (amod[i]->type == DMT_ELF)   continue;
 620
 621         DEBUG_Printf(DBG_CHN_MESG, "0x%08lx-%08lx\t(%s)\t%s\n",
 622                      (DWORD)amod[i]->load_addr,
 623                      (DWORD)amod[i]->load_addr + amod[i]->size,
 624                      DEBUG_GetModuleType(amod[i]->type), amod[i]->module_name);
 625     }
 626     DBG_free(amod);
 627 }
 628