programs/winedbg/symbol.c

   1 /*
   2  * Generate hash tables for Wine debugger symbols
   3  *
   4  * Copyright (C) 1993, Eric Youngdale.
   5  *               2004-2005, Eric Pouech.
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #define NONAMELESSUNION
  23 #define NONAMELESSSTRUCT
  24
  25 #include "config.h"
  26 #include <stdlib.h>
  27 #include <stdio.h>
  28 #include <string.h>
  29
  30 #include "debugger.h"
  31 #include "wine/debug.h"
  32
  33 WINE_DEFAULT_DEBUG_CHANNEL(winedbg);
  34
  35 static BOOL symbol_get_debug_start(const struct dbg_type* func, ULONG64* start)
  36 {
  37     DWORD                       count, tag;
  38     char                        buffer[sizeof(TI_FINDCHILDREN_PARAMS) + 256 * sizeof(DWORD)];
  39     TI_FINDCHILDREN_PARAMS*     fcp = (TI_FINDCHILDREN_PARAMS*)buffer;
  40     int                         i;
  41     struct dbg_type             child;
  42
  43     if (!func->id) return FALSE; /* native dbghelp not always fills the info field */
  44
  45     if (!types_get_info(func, TI_GET_CHILDRENCOUNT, &count)) return FALSE;
  46     fcp->Start = 0;
  47     while (count)
  48     {
  49         fcp->Count = min(count, 256);
  50         if (types_get_info(func, TI_FINDCHILDREN, fcp))
  51         {
  52             for (i = 0; i < min(fcp->Count, count); i++)
  53             {
  54                 child.module = func->module;
  55                 child.id = fcp->ChildId[i];
  56                 types_get_info(&child, TI_GET_SYMTAG, &tag);
  57                 if (tag != SymTagFuncDebugStart) continue;
  58                 return types_get_info(&child, TI_GET_ADDRESS, start);
  59             }
  60             count -= min(count, 256);
  61             fcp->Start += 256;
  62             fcp->Start += 256;
  63         }
  64     }
  65     return FALSE;
  66 }
  67
  68 static BOOL fill_sym_lvalue(const SYMBOL_INFO* sym, ULONG base,
  69                             struct dbg_lvalue* lvalue, char* buffer, size_t sz)
  70 {
  71     if (buffer) buffer[0] = '\0';
  72     if (sym->Flags & SYMFLAG_REGISTER)
  73     {
  74         DWORD* pval;
  75
  76         if (!memory_get_register(sym->Register, &pval, buffer, sz))
  77             return FALSE;
  78         lvalue->cookie = DLV_HOST;
  79         lvalue->addr.Offset = (DWORD_PTR)pval;
  80     }
  81     else if (sym->Flags & SYMFLAG_REGREL)
  82     {
  83         DWORD* pval;
  84
  85         if (!memory_get_register(sym->Register, &pval, buffer, sz))
  86             return FALSE;
  87         lvalue->cookie = DLV_TARGET;
  88         lvalue->addr.Offset = (ULONG)((ULONG64)*pval + sym->Address);
  89     }
  90     else if (sym->Flags & SYMFLAG_VALUEPRESENT)
  91     {
  92         struct dbg_type type;
  93         VARIANT         v;
  94         DWORD*          pdw;
  95
  96         type.module = sym->ModBase;
  97         type.id = sym->info;
  98
  99         /* FIXME: this won't work for pointers, as we always for the
 100          * dereference to be in debuggee address space while here
 101          * it's in debugger address space
 102          */
 103         if (!types_get_info(&type, TI_GET_VALUE, &v) || (v.n1.n2.vt & VT_BYREF))
 104         {
 105             snprintf(buffer, sz, "Couldn't dereference pointer for const value");
 106             return FALSE;
 107         }
 108         pdw = (DWORD*)lexeme_alloc_size(sizeof(*pdw));
 109         lvalue->cookie = DLV_HOST;
 110         lvalue->addr.Offset = (ULONG)(DWORD_PTR)pdw;
 111         *pdw = sym->Value;
 112     }
 113     else if (sym->Flags & SYMFLAG_LOCAL)
 114     {
 115         lvalue->cookie = DLV_TARGET;
 116         lvalue->addr.Offset = base + sym->Address;
 117     }
 118     else
 119     {
 120         lvalue->cookie = DLV_TARGET;
 121         lvalue->addr.Offset = sym->Address;
 122     }
 123     lvalue->addr.Mode = AddrModeFlat;
 124     lvalue->type.module = sym->ModBase;
 125     lvalue->type.id = sym->TypeIndex;
 126
 127     return TRUE;
 128 }
 129
 130 struct sgv_data
 131 {
 132 #define NUMDBGV                 100
 133     struct
 134     {
 135         /* FIXME: NUMDBGV should be made variable */
 136         struct dbg_lvalue               lvalue;
 137         DWORD                           flags;
 138         DWORD                           sym_info;
 139     }                           syms[NUMDBGV];  /* out     : will be filled in with various found symbols */
 140     int                         num;            /* out     : number of found symbols */
 141     int                         num_thunks;     /* out     : number of thunks found */
 142     const char*                 name;           /* in      : name of symbol to look up */
 143     unsigned                    do_thunks : 1;  /* in      : whether we return thunks tags */
 144     ULONG64                     frame_offset;   /* in      : frame for local & parameter variables look up */
 145 };
 146
 147 static BOOL CALLBACK sgv_cb(PSYMBOL_INFO sym, ULONG size, PVOID ctx)
 148 {
 149     struct sgv_data*    sgv = (struct sgv_data*)ctx;
 150     unsigned            insp;
 151     char                tmp[64];
 152
 153     if (sym->Flags & SYMFLAG_THUNK)
 154     {
 155         if (!sgv->do_thunks) return TRUE;
 156         sgv->num_thunks++;
 157     }
 158
 159     if (sgv->num >= NUMDBGV)
 160     {
 161         dbg_printf("Too many addresses for symbol '%s', limiting the first %d\n",
 162                    sgv->name, NUMDBGV);
 163         return FALSE;
 164     }
 165     WINE_TRACE("==> %s %s%s%s%s%s%s%s\n",
 166                sym->Name,
 167                (sym->Flags & SYMFLAG_FUNCTION) ? "func " : "",
 168                (sym->Flags & SYMFLAG_FRAMEREL) ? "framerel " : "",
 169                (sym->Flags & SYMFLAG_REGISTER) ? "register " : "",
 170                (sym->Flags & SYMFLAG_REGREL) ? "regrel " : "",
 171                (sym->Flags & SYMFLAG_PARAMETER) ? "param " : "",
 172                (sym->Flags & SYMFLAG_LOCAL) ? "local " : "",
 173                (sym->Flags & SYMFLAG_THUNK) ? "thunk " : "");
 174
 175     /* always keep the thunks at end of the array */
 176     insp = sgv->num;
 177     if (sgv->num_thunks && !(sym->Flags & SYMFLAG_THUNK))
 178     {
 179         insp -= sgv->num_thunks;
 180         memmove(&sgv->syms[insp + 1], &sgv->syms[insp],
 181                 sizeof(sgv->syms[0]) * sgv->num_thunks);
 182     }
 183     if (!fill_sym_lvalue(sym, sgv->frame_offset, &sgv->syms[insp].lvalue, tmp, sizeof(tmp)))
 184     {
 185         dbg_printf("%s: %s\n", sym->Name, tmp);
 186         return TRUE;
 187     }
 188     sgv->syms[insp].flags              = sym->Flags;
 189     sgv->syms[insp].sym_info           = sym->info;
 190     sgv->num++;
 191
 192     return TRUE;
 193 }
 194
 195 /***********************************************************************
 196  *           symbol_get_lvalue
 197  *
 198  * Get the address of a named symbol.
 199  * Return values:
 200  *      sglv_found:   if the symbol is found
 201  *      sglv_unknown: if the symbol isn't found
 202  *      sglv_aborted: some error occurred (likely, many symbols of same name exist,
 203  *          and user didn't pick one of them)
 204  */
 205 enum sym_get_lval symbol_get_lvalue(const char* name, const int lineno,
 206                                     struct dbg_lvalue* rtn, BOOL bp_disp)
 207 {
 208     struct sgv_data             sgv;
 209     int                         i;
 210     char                        buffer[512];
 211     DWORD                       opt;
 212     IMAGEHLP_STACK_FRAME        ihsf;
 213
 214     if (strlen(name) + 4 > sizeof(buffer))
 215     {
 216         WINE_WARN("Too long symbol (%s)\n", name);
 217         return sglv_unknown;
 218     }
 219
 220     sgv.num        = 0;
 221     sgv.num_thunks = 0;
 222     sgv.name       = &buffer[2];
 223     sgv.do_thunks  = DBG_IVAR(AlwaysShowThunks);
 224
 225     if (strchr(name, '!'))
 226     {
 227         strcpy(buffer, name);
 228     }
 229     else
 230     {
 231         buffer[0] = '*';
 232         buffer[1] = '!';
 233         strcpy(&buffer[2], name);
 234     }
 235
 236     /* this is a wine specific options to return also ELF modules in the
 237      * enumeration
 238      */
 239     SymSetOptions((opt = SymGetOptions()) | 0x40000000);
 240     SymEnumSymbols(dbg_curr_process->handle, 0, buffer, sgv_cb, (void*)&sgv);
 241
 242     if (!sgv.num)
 243     {
 244         const char*   ptr = strchr(name, '!');
 245         if ((ptr && ptr[1] != '_') || (!ptr && *name != '_'))
 246         {
 247             if (ptr)
 248             {
 249                 int offset = ptr - name;
 250                 memcpy(buffer, name, offset + 1);
 251                 buffer[offset + 1] = '_';
 252                 strcpy(&buffer[offset + 2], ptr + 1);
 253             }
 254             else
 255             {
 256                 buffer[0] = '*';
 257                 buffer[1] = '!';
 258                 buffer[2] = '_';
 259                 strcpy(&buffer[3], name);
 260             }
 261             SymEnumSymbols(dbg_curr_process->handle, 0, buffer, sgv_cb, (void*)&sgv);
 262         }
 263     }
 264     SymSetOptions(opt);
 265
 266     /* now grab local symbols */
 267     if (stack_get_current_frame(&ihsf) && sgv.num < NUMDBGV)
 268     {
 269         sgv.frame_offset = ihsf.FrameOffset;
 270         SymEnumSymbols(dbg_curr_process->handle, 0, name, sgv_cb, (void*)&sgv);
 271     }
 272
 273     if (!sgv.num)
 274     {
 275         dbg_printf("No symbols found for %s\n", name);
 276         return sglv_unknown;
 277     }
 278
 279     /* recompute potential offsets for functions (linenumber, skip prolog) */
 280     for (i = 0; i < sgv.num; i++)
 281     {
 282         if (sgv.syms[i].flags & (SYMFLAG_REGISTER|SYMFLAG_REGREL|SYMFLAG_LOCAL|SYMFLAG_THUNK))
 283             continue;
 284
 285         if (lineno == -1)
 286         {
 287             struct dbg_type     type;
 288             ULONG64             addr;
 289
 290             type.module = sgv.syms[i].lvalue.type.module;
 291             type.id     = sgv.syms[i].sym_info;
 292             if (bp_disp && symbol_get_debug_start(&type, &addr))
 293                 sgv.syms[i].lvalue.addr.Offset = addr;
 294         }
 295         else
 296         {
 297             DWORD               disp;
 298             IMAGEHLP_LINE       il;
 299             BOOL                found = FALSE;
 300
 301             il.SizeOfStruct = sizeof(il);
 302             SymGetLineFromAddr(dbg_curr_process->handle,
 303                                (DWORD)memory_to_linear_addr(&sgv.syms[i].lvalue.addr),
 304                                &disp, &il);
 305             do
 306             {
 307                 if (lineno == il.LineNumber)
 308                 {
 309                     sgv.syms[i].lvalue.addr.Offset = il.Address;
 310                     found = TRUE;
 311                     break;
 312                 }
 313             } while (SymGetLineNext(dbg_curr_process->handle, &il));
 314             if (!found)
 315                 WINE_FIXME("No line (%d) found for %s (setting to symbol start)\n",
 316                            lineno, name);
 317         }
 318     }
 319
 320     i = 0;
 321     if (dbg_interactiveP)
 322     {
 323         if (sgv.num - sgv.num_thunks > 1 || /* many symbols non thunks (and showing only non thunks) */
 324             (sgv.num > 1 && DBG_IVAR(AlwaysShowThunks)) || /* many symbols (showing symbols & thunks) */
 325             (sgv.num == sgv.num_thunks && sgv.num_thunks > 1))
 326         {
 327             dbg_printf("Many symbols with name '%s', "
 328                        "choose the one you want (<cr> to abort):\n", name);
 329             for (i = 0; i < sgv.num; i++)
 330             {
 331                 if (sgv.num - sgv.num_thunks > 1 && (sgv.syms[i].flags & SYMFLAG_THUNK) && !DBG_IVAR(AlwaysShowThunks))
 332                     continue;
 333                 dbg_printf("[%d]: ", i + 1);
 334                 if (sgv.syms[i].flags & SYMFLAG_LOCAL)
 335                 {
 336                     dbg_printf("%s %sof %s\n",
 337                                sgv.syms[i].flags & SYMFLAG_PARAMETER ? "Parameter" : "Local variable",
 338                                sgv.syms[i].flags & (SYMFLAG_REGISTER|SYMFLAG_REGREL) ? "(in a register) " : "",
 339                                name);
 340                 }
 341                 else if (sgv.syms[i].flags & SYMFLAG_THUNK)
 342                 {
 343                     print_address(&sgv.syms[i].lvalue.addr, TRUE);
 344                     /* FIXME: should display where the thunks points to */
 345                     dbg_printf(" thunk %s\n", name);
 346                 }
 347                 else
 348                 {
 349                     print_address(&sgv.syms[i].lvalue.addr, TRUE);
 350                     dbg_printf("\n");
 351                 }
 352             }
 353             do
 354             {
 355                 i = 0;
 356                 if (input_read_line("=> ", buffer, sizeof(buffer)))
 357                 {
 358                     if (buffer[0] == '\0') return sglv_aborted;
 359                     i = atoi(buffer);
 360                     if (i < 1 || i > sgv.num)
 361                         dbg_printf("Invalid choice %d\n", i);
 362                 }
 363                 else return sglv_aborted;
 364             } while (i < 1 || i > sgv.num);
 365
 366             /* The array is 0-based, but the choices are 1..n,
 367              * so we have to subtract one before returning.
 368              */
 369             i--;
 370         }
 371     }
 372     else
 373     {
 374         /* FIXME: could display the list of non-picked up symbols */
 375         if (sgv.num > 1)
 376             dbg_printf("More than one symbol named %s, picking the first one\n", name);
 377     }
 378     *rtn = sgv.syms[i].lvalue;
 379     return sglv_found;
 380 }
 381
 382 BOOL symbol_is_local(const char* name)
 383 {
 384     struct sgv_data             sgv;
 385     IMAGEHLP_STACK_FRAME        ihsf;
 386
 387     sgv.num        = 0;
 388     sgv.num_thunks = 0;
 389     sgv.name       = name;
 390     sgv.do_thunks  = FALSE;
 391
 392     if (stack_get_current_frame(&ihsf))
 393     {
 394         sgv.frame_offset = ihsf.FrameOffset;
 395         SymEnumSymbols(dbg_curr_process->handle, 0, name, sgv_cb, (void*)&sgv);
 396     }
 397     return sgv.num > 0;
 398 }
 399
 400 /***********************************************************************
 401  *           symbol_read_symtable
 402  *
 403  * Read a symbol file into the hash table.
 404  */
 405 void symbol_read_symtable(const char* filename, unsigned long offset)
 406 {
 407     dbg_printf("No longer supported\n");
 408
 409 #if 0
 410 /* FIXME: have to implement SymAddSymbol in dbghelp, but likely we'll need to link
 411  * this with an already loaded module !!
 412  */
 413     FILE*       symbolfile;
 414     unsigned    addr;
 415     char        type;
 416     char*       cpnt;
 417     char        buffer[256];
 418     char        name[256];
 419
 420     if (!(symbolfile = fopen(filename, "r")))
 421     {
 422         WINE_WARN("Unable to open symbol table %s\n", filename);
 423         return;
 424     }
 425
 426     dbg_printf("Reading symbols from file %s\n", filename);
 427
 428     while (1)
 429     {
 430         fgets(buffer, sizeof(buffer), symbolfile);
 431         if (feof(symbolfile)) break;
 432
 433         /* Strip any text after a # sign (i.e. comments) */
 434         cpnt = strchr(buffer, '#');
 435         if (cpnt) *cpnt = '\0';
 436
 437         /* Quietly ignore any lines that have just whitespace */
 438         for (cpnt = buffer; *cpnt; cpnt++)
 439         {
 440             if (*cpnt != ' ' && *cpnt != '\t') break;
 441         }
 442         if (!*cpnt || *cpnt == '\n') continue;
 443
 444         if (sscanf(buffer, "%lx %c %s", &addr, &type, name) == 3)
 445         {
 446             if (value.addr.off + offset < value.addr.off)
 447                 WINE_WARN("Address wrap around\n");
 448             value.addr.off += offset;
 449             SymAddSymbol(current_process->handle, BaseOfDll,
 450                          name, addr, 0, 0);
 451         }
 452     }
 453     fclose(symbolfile);
 454 #endif
 455 }
 456
 457 /***********************************************************************
 458  *           symbol_get_function_line_status
 459  *
 460  * Find the symbol nearest to a given address.
 461  */
 462 enum dbg_line_status symbol_get_function_line_status(const ADDRESS64* addr)
 463 {
 464     IMAGEHLP_LINE       il;
 465     DWORD               disp;
 466     ULONG64             disp64, start;
 467     DWORD               lin = (DWORD)memory_to_linear_addr(addr);
 468     char                buffer[sizeof(SYMBOL_INFO) + 256];
 469     SYMBOL_INFO*        sym = (SYMBOL_INFO*)buffer;
 470     struct dbg_type     func;
 471
 472     il.SizeOfStruct = sizeof(il);
 473     sym->SizeOfStruct = sizeof(SYMBOL_INFO);
 474     sym->MaxNameLen = sizeof(buffer) - sizeof(SYMBOL_INFO);
 475
 476     /* do we have some info for lin address ? */
 477     if (!SymFromAddr(dbg_curr_process->handle, lin, &disp64, sym))
 478         return dbg_no_line_info;
 479
 480     switch (sym->Tag)
 481     {
 482     case SymTagThunk:
 483         /* FIXME: so far dbghelp doesn't return the 16 <=> 32 thunks
 484          * and furthermore, we no longer take care of them !!!
 485          */
 486         return dbg_in_a_thunk;
 487     case SymTagFunction:
 488     case SymTagPublicSymbol: break;
 489     default:
 490         WINE_FIXME("Unexpected sym-tag 0x%08x\n", sym->Tag);
 491     case SymTagData:
 492         return dbg_no_line_info;
 493     }
 494     /* we should have a function now */
 495     if (!SymGetLineFromAddr(dbg_curr_process->handle, lin, &disp, &il))
 496         return dbg_no_line_info;
 497
 498     func.module = sym->ModBase;
 499     func.id     = sym->info;
 500
 501     if (symbol_get_debug_start(&func, &start) && lin < start)
 502         return dbg_not_on_a_line_number;
 503
 504     if (!sym->Size) sym->Size = 0x100000;
 505     if (il.FileName && il.FileName[0] && disp < sym->Size)
 506         return (disp == 0) ? dbg_on_a_line_number : dbg_not_on_a_line_number;
 507
 508     return dbg_no_line_info;
 509 }
 510
 511 /***********************************************************************
 512  *           symbol_get_line
 513  *
 514  * Find the symbol nearest to a given address.
 515  * Returns sourcefile name and line number in a format that the listing
 516  * handler can deal with.
 517  */
 518 BOOL symbol_get_line(const char* filename, const char* name, IMAGEHLP_LINE* line)
 519 {
 520     struct sgv_data     sgv;
 521     char                buffer[512];
 522     DWORD               opt, disp, linear;
 523     unsigned            i, found = FALSE;
 524     IMAGEHLP_LINE       il;
 525
 526     sgv.num        = 0;
 527     sgv.num_thunks = 0;
 528     sgv.name       = &buffer[2];
 529     sgv.do_thunks  = FALSE;
 530
 531     buffer[0] = '*';
 532     buffer[1] = '!';
 533     strcpy(&buffer[2], name);
 534
 535     /* this is a wine specific options to return also ELF modules in the
 536      * enumeration
 537      */
 538     SymSetOptions((opt = SymGetOptions()) | 0x40000000);
 539     if (!SymEnumSymbols(dbg_curr_process->handle, 0, buffer, sgv_cb, (void*)&sgv))
 540     {
 541         SymSetOptions(opt);
 542         return FALSE;
 543     }
 544
 545     if (!sgv.num && (name[0] != '_'))
 546     {
 547         buffer[2] = '_';
 548         strcpy(&buffer[3], name);
 549         if (!SymEnumSymbols(dbg_curr_process->handle, 0, buffer, sgv_cb, (void*)&sgv))
 550         {
 551             SymSetOptions(opt);
 552             return FALSE;
 553         }
 554     }
 555     SymSetOptions(opt);
 556
 557     for (i = 0; i < sgv.num; i++)
 558     {
 559         linear = (DWORD)memory_to_linear_addr(&sgv.syms[i].lvalue.addr);
 560
 561         il.SizeOfStruct = sizeof(il);
 562         if (!SymGetLineFromAddr(dbg_curr_process->handle, linear, &disp, &il))
 563             continue;
 564         if (filename && strcmp(line->FileName, filename)) continue;
 565         if (found)
 566         {
 567             WINE_FIXME("Several found, returning first (may not be what you want)...\n");
 568             break;
 569         }
 570         found = TRUE;
 571         *line = il;
 572     }
 573     if (!found)
 574     {
 575         if (filename)   dbg_printf("No such function %s in %s\n", name, filename);
 576         else            dbg_printf("No such function %s\n", name);
 577         return FALSE;
 578     }
 579     return TRUE;
 580 }
 581
 582 /******************************************************************
 583  *              symbol_print_local
 584  *
 585  * Overall format is:
 586  * <name>=<value>                       in non detailed form
 587  * <name>=<value> (local|pmt <where>)   in detailed form
 588  * Note <value> can be an error message in case of error
 589  */
 590 void symbol_print_local(const SYMBOL_INFO* sym, ULONG base,
 591                         BOOL detailed)
 592 {
 593     struct dbg_lvalue   lvalue;
 594     char                buffer[64];
 595
 596     dbg_printf("%s=", sym->Name);
 597
 598     if (fill_sym_lvalue(sym, base, &lvalue, buffer, sizeof(buffer)))
 599     {
 600         print_value(&lvalue, 'x', 1);
 601         if (detailed)
 602             dbg_printf(" (%s%s)",
 603                        (sym->Flags & SYMFLAG_PARAMETER) ? "parameter" : "local",
 604                        buffer);
 605     }
 606     else
 607     {
 608         dbg_printf(buffer);
 609         if (detailed)
 610             dbg_printf(" (%s)",
 611                        (sym->Flags & SYMFLAG_PARAMETER) ? "parameter" : "local");
 612     }
 613 }
 614
 615 static BOOL CALLBACK info_locals_cb(PSYMBOL_INFO sym, ULONG size, PVOID ctx)
 616 {
 617     struct dbg_type     type;
 618
 619     dbg_printf("\t");
 620     type.module = sym->ModBase;
 621     type.id = sym->TypeIndex;
 622     types_print_type(&type, FALSE);
 623
 624     dbg_printf(" ");
 625     symbol_print_local(sym, (ULONG)ctx, TRUE);
 626     dbg_printf("\n");
 627
 628     return TRUE;
 629 }
 630
 631 int symbol_info_locals(void)
 632 {
 633     IMAGEHLP_STACK_FRAME        ihsf;
 634     ADDRESS64                   addr;
 635
 636     stack_get_current_frame(&ihsf);
 637     addr.Mode = AddrModeFlat;
 638     addr.Offset = ihsf.InstructionOffset;
 639     print_address(&addr, FALSE);
 640     dbg_printf(": (%08lx)\n", (DWORD_PTR)ihsf.FrameOffset);
 641     SymEnumSymbols(dbg_curr_process->handle, 0, NULL, info_locals_cb, (void*)(DWORD_PTR)ihsf.FrameOffset);
 642
 643     return TRUE;
 644
 645 }
 646
 647 static BOOL CALLBACK symbols_info_cb(PSYMBOL_INFO sym, ULONG size, PVOID ctx)
 648 {
 649     struct dbg_type     type;
 650     IMAGEHLP_MODULE     mi;
 651
 652     mi.SizeOfStruct = sizeof(mi);
 653
 654     if (!SymGetModuleInfo(dbg_curr_process->handle, sym->ModBase, &mi))
 655         mi.ModuleName[0] = '\0';
 656     else
 657     {
 658         size_t  len = strlen(mi.ModuleName);
 659         if (len > 5 && !strcmp(mi.ModuleName + len - 5, "<elf>"))
 660             mi.ModuleName[len - 5] = '\0';
 661     }
 662
 663     dbg_printf("%08lx: %s!%s", (ULONG_PTR)sym->Address, mi.ModuleName, sym->Name);
 664     type.id = sym->TypeIndex;
 665     type.module = sym->ModBase;
 666
 667     if (sym->TypeIndex != dbg_itype_none && sym->TypeIndex != 0)
 668     {
 669         dbg_printf(" ");
 670         types_print_type(&type, FALSE);
 671     }
 672     dbg_printf("\n");
 673     return TRUE;
 674 }
 675
 676 void symbol_info(const char* str)
 677 {
 678     char        buffer[512];
 679     DWORD       opt;
 680
 681     if (strlen(str) + 3 >= sizeof(buffer))
 682     {
 683         dbg_printf("Symbol too long (%s)\n", str);
 684         return;
 685     }
 686     buffer[0] = '*';
 687     buffer[1] = '!';
 688     strcpy(&buffer[2], str);
 689     /* this is a wine specific options to return also ELF modules in the
 690      * enumeration
 691      */
 692     SymSetOptions((opt = SymGetOptions()) | 0x40000000);
 693     SymEnumSymbols(dbg_curr_process->handle, 0, buffer, symbols_info_cb, NULL);
 694     SymSetOptions(opt);
 695 }