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_PTR 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_PTR* 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_PTR* 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
  95         type.module = sym->ModBase;
  96         type.id = sym->info;
  97
  98         if (!types_get_info(&type, TI_GET_VALUE, &v))
  99         {
 100             if (buffer) snprintf(buffer, sz, "Couldn't get full value information for %s", sym->Name);
 101             return FALSE;
 102         }
 103         else if (v.n1.n2.vt & VT_BYREF)
 104         {
 105             /* FIXME: this won't work for pointers or arrays, as we don't always
 106              * know, if the value to be dereferenced lies in debuggee or
 107              * debugger address space.
 108              */
 109             if (sym->Tag == SymTagPointerType || sym->Tag == SymTagArrayType)
 110             {
 111                 if (buffer) snprintf(buffer, sz, "Couldn't dereference pointer for const value for %s", sym->Name);
 112                 return FALSE;
 113             }
 114             /* this is likely Wine's dbghelp which passes const values by reference
 115              * (object is managed by dbghelp, hence in debugger address space)
 116              */
 117             lvalue->cookie = DLV_HOST;
 118             lvalue->addr.Offset = (DWORD_PTR)sym->Value;
 119         }
 120         else
 121         {
 122             DWORD* pdw = (DWORD*)lexeme_alloc_size(sizeof(*pdw));
 123             lvalue->cookie = DLV_HOST;
 124             lvalue->addr.Offset = (DWORD_PTR)pdw;
 125             *pdw = sym->Value;
 126         }
 127     }
 128     else if (sym->Flags & SYMFLAG_LOCAL)
 129     {
 130         lvalue->cookie = DLV_TARGET;
 131         lvalue->addr.Offset = base + sym->Address;
 132     }
 133     else
 134     {
 135         lvalue->cookie = DLV_TARGET;
 136         lvalue->addr.Offset = sym->Address;
 137     }
 138     lvalue->addr.Mode = AddrModeFlat;
 139     lvalue->type.module = sym->ModBase;
 140     lvalue->type.id = sym->TypeIndex;
 141
 142     return TRUE;
 143 }
 144
 145 struct sgv_data
 146 {
 147 #define NUMDBGV                 100
 148     struct
 149     {
 150         /* FIXME: NUMDBGV should be made variable */
 151         struct dbg_lvalue               lvalue;
 152         DWORD                           flags;
 153         DWORD                           sym_info;
 154     }                           syms[NUMDBGV];  /* out     : will be filled in with various found symbols */
 155     int                         num;            /* out     : number of found symbols */
 156     int                         num_thunks;     /* out     : number of thunks found */
 157     const char*                 name;           /* in      : name of symbol to look up */
 158     unsigned                    do_thunks : 1;  /* in      : whether we return thunks tags */
 159     ULONG64                     frame_offset;   /* in      : frame for local & parameter variables look up */
 160 };
 161
 162 static BOOL CALLBACK sgv_cb(PSYMBOL_INFO sym, ULONG size, PVOID ctx)
 163 {
 164     struct sgv_data*    sgv = ctx;
 165     unsigned            insp;
 166     char                tmp[64];
 167
 168     if (sym->Flags & SYMFLAG_THUNK)
 169     {
 170         if (!sgv->do_thunks) return TRUE;
 171         sgv->num_thunks++;
 172     }
 173
 174     if (sgv->num >= NUMDBGV)
 175     {
 176         dbg_printf("Too many addresses for symbol '%s', limiting the first %d\n",
 177                    sgv->name, NUMDBGV);
 178         return FALSE;
 179     }
 180     WINE_TRACE("==> %s %s%s%s%s%s%s%s\n",
 181                sym->Name,
 182                (sym->Flags & SYMFLAG_FUNCTION) ? "func " : "",
 183                (sym->Flags & SYMFLAG_FRAMEREL) ? "framerel " : "",
 184                (sym->Flags & SYMFLAG_REGISTER) ? "register " : "",
 185                (sym->Flags & SYMFLAG_REGREL) ? "regrel " : "",
 186                (sym->Flags & SYMFLAG_PARAMETER) ? "param " : "",
 187                (sym->Flags & SYMFLAG_LOCAL) ? "local " : "",
 188                (sym->Flags & SYMFLAG_THUNK) ? "thunk " : "");
 189
 190     /* always keep the thunks at end of the array */
 191     insp = sgv->num;
 192     if (sgv->num_thunks && !(sym->Flags & SYMFLAG_THUNK))
 193     {
 194         insp -= sgv->num_thunks;
 195         memmove(&sgv->syms[insp + 1], &sgv->syms[insp],
 196                 sizeof(sgv->syms[0]) * sgv->num_thunks);
 197     }
 198     if (!fill_sym_lvalue(sym, sgv->frame_offset, &sgv->syms[insp].lvalue, tmp, sizeof(tmp)))
 199     {
 200         dbg_printf("%s: %s\n", sym->Name, tmp);
 201         return TRUE;
 202     }
 203     sgv->syms[insp].flags              = sym->Flags;
 204     sgv->syms[insp].sym_info           = sym->info;
 205     sgv->num++;
 206
 207     return TRUE;
 208 }
 209
 210 enum sym_get_lval symbol_picker_interactive(const char* name, const struct sgv_data* sgv,
 211                                             struct dbg_lvalue* rtn)
 212 {
 213     char        buffer[512];
 214     unsigned    i;
 215
 216     if (!dbg_interactiveP)
 217     {
 218         dbg_printf("More than one symbol named %s, picking the first one\n", name);
 219         *rtn = sgv->syms[0].lvalue;
 220         return sglv_found;
 221     }
 222
 223     dbg_printf("Many symbols with name '%s', "
 224                "choose the one you want (<cr> to abort):\n", name);
 225     for (i = 0; i < sgv->num; i++)
 226     {
 227         if (sgv->num - sgv->num_thunks > 1 && (sgv->syms[i].flags & SYMFLAG_THUNK) && !DBG_IVAR(AlwaysShowThunks))
 228             continue;
 229         dbg_printf("[%d]: ", i + 1);
 230         if (sgv->syms[i].flags & SYMFLAG_LOCAL)
 231         {
 232             dbg_printf("%s %sof %s\n",
 233                        sgv->syms[i].flags & SYMFLAG_PARAMETER ? "Parameter" : "Local variable",
 234                        sgv->syms[i].flags & (SYMFLAG_REGISTER|SYMFLAG_REGREL) ? "(in a register) " : "",
 235                        name);
 236         }
 237         else if (sgv->syms[i].flags & SYMFLAG_THUNK)
 238         {
 239             print_address(&sgv->syms[i].lvalue.addr, TRUE);
 240             /* FIXME: should display where the thunks points to */
 241             dbg_printf(" thunk %s\n", name);
 242         }
 243         else
 244         {
 245             print_address(&sgv->syms[i].lvalue.addr, TRUE);
 246             dbg_printf("\n");
 247         }
 248     }
 249     do
 250     {
 251         i = 0;
 252         if (input_read_line("=> ", buffer, sizeof(buffer)))
 253         {
 254             if (buffer[0] == '\0') return sglv_aborted;
 255             i = atoi(buffer);
 256             if (i < 1 || i > sgv->num)
 257                 dbg_printf("Invalid choice %d\n", i);
 258         }
 259         else return sglv_aborted;
 260     } while (i < 1 || i > sgv->num);
 261
 262     /* The array is 0-based, but the choices are 1..n,
 263      * so we have to subtract one before returning.
 264      */
 265     *rtn = sgv->syms[i - 1].lvalue;
 266     return sglv_found;
 267 }
 268
 269 enum sym_get_lval symbol_picker_scoped(const char* name, const struct sgv_data* sgv,
 270                                        struct dbg_lvalue* rtn)
 271 {
 272     unsigned i;
 273     int local = -1;
 274
 275     for (i = 0; i < sgv->num; i++)
 276     {
 277         if (sgv->num - sgv->num_thunks > 1 && (sgv->syms[i].flags & SYMFLAG_THUNK) && !DBG_IVAR(AlwaysShowThunks))
 278             continue;
 279         if (sgv->syms[i].flags & SYMFLAG_LOCAL)
 280         {
 281             if (local == -1)
 282                 local = i;
 283             else
 284             {
 285                 /* FIXME: several locals with same name... which one to pick ?? */
 286                 dbg_printf("Several local variables/parameters for %s, aborting\n", name);
 287                 return sglv_aborted;
 288             }
 289         }
 290     }
 291     if (local != -1)
 292     {
 293         *rtn = sgv->syms[local].lvalue;
 294         return sglv_found;
 295     }
 296     /* no locals found, multiple globals... abort for now */
 297     dbg_printf("Several global variables for %s, aborting\n", name);
 298     return sglv_aborted;
 299 }
 300
 301 symbol_picker_t symbol_current_picker = symbol_picker_interactive;
 302
 303 /***********************************************************************
 304  *           symbol_get_lvalue
 305  *
 306  * Get the address of a named symbol.
 307  * Return values:
 308  *      sglv_found:   if the symbol is found
 309  *      sglv_unknown: if the symbol isn't found
 310  *      sglv_aborted: some error occurred (likely, many symbols of same name exist,
 311  *          and user didn't pick one of them)
 312  */
 313 enum sym_get_lval symbol_get_lvalue(const char* name, const int lineno,
 314                                     struct dbg_lvalue* rtn, BOOL bp_disp)
 315 {
 316     struct sgv_data             sgv;
 317     int                         i;
 318     char                        buffer[512];
 319     DWORD                       opt;
 320     IMAGEHLP_STACK_FRAME        ihsf;
 321
 322     if (strlen(name) + 4 > sizeof(buffer))
 323     {
 324         WINE_WARN("Too long symbol (%s)\n", name);
 325         return sglv_unknown;
 326     }
 327
 328     sgv.num        = 0;
 329     sgv.num_thunks = 0;
 330     sgv.name       = &buffer[2];
 331     sgv.do_thunks  = DBG_IVAR(AlwaysShowThunks);
 332
 333     if (strchr(name, '!'))
 334     {
 335         strcpy(buffer, name);
 336     }
 337     else
 338     {
 339         buffer[0] = '*';
 340         buffer[1] = '!';
 341         strcpy(&buffer[2], name);
 342     }
 343
 344     /* this is a wine specific options to return also ELF modules in the
 345      * enumeration
 346      */
 347     SymSetOptions((opt = SymGetOptions()) | 0x40000000);
 348     SymEnumSymbols(dbg_curr_process->handle, 0, buffer, sgv_cb, (void*)&sgv);
 349
 350     if (!sgv.num)
 351     {
 352         const char*   ptr = strchr(name, '!');
 353         if ((ptr && ptr[1] != '_') || (!ptr && *name != '_'))
 354         {
 355             if (ptr)
 356             {
 357                 int offset = ptr - name;
 358                 memcpy(buffer, name, offset + 1);
 359                 buffer[offset + 1] = '_';
 360                 strcpy(&buffer[offset + 2], ptr + 1);
 361             }
 362             else
 363             {
 364                 buffer[0] = '*';
 365                 buffer[1] = '!';
 366                 buffer[2] = '_';
 367                 strcpy(&buffer[3], name);
 368             }
 369             SymEnumSymbols(dbg_curr_process->handle, 0, buffer, sgv_cb, (void*)&sgv);
 370         }
 371     }
 372     SymSetOptions(opt);
 373
 374     /* now grab local symbols */
 375     if (stack_get_current_frame(&ihsf) && sgv.num < NUMDBGV)
 376     {
 377         sgv.frame_offset = ihsf.FrameOffset;
 378         SymEnumSymbols(dbg_curr_process->handle, 0, name, sgv_cb, (void*)&sgv);
 379     }
 380
 381     if (!sgv.num)
 382     {
 383         dbg_printf("No symbols found for %s\n", name);
 384         return sglv_unknown;
 385     }
 386
 387     /* recompute potential offsets for functions (linenumber, skip prolog) */
 388     for (i = 0; i < sgv.num; i++)
 389     {
 390         if (sgv.syms[i].flags & (SYMFLAG_REGISTER|SYMFLAG_REGREL|SYMFLAG_LOCAL|SYMFLAG_THUNK))
 391             continue;
 392
 393         if (lineno == -1)
 394         {
 395             struct dbg_type     type;
 396             ULONG64             addr;
 397
 398             type.module = sgv.syms[i].lvalue.type.module;
 399             type.id     = sgv.syms[i].sym_info;
 400             if (bp_disp && symbol_get_debug_start(&type, &addr))
 401                 sgv.syms[i].lvalue.addr.Offset = addr;
 402         }
 403         else
 404         {
 405             DWORD               disp;
 406             IMAGEHLP_LINE       il;
 407             BOOL                found = FALSE;
 408
 409             il.SizeOfStruct = sizeof(il);
 410             SymGetLineFromAddr(dbg_curr_process->handle,
 411                                (DWORD_PTR)memory_to_linear_addr(&sgv.syms[i].lvalue.addr),
 412                                &disp, &il);
 413             do
 414             {
 415                 if (lineno == il.LineNumber)
 416                 {
 417                     sgv.syms[i].lvalue.addr.Offset = il.Address;
 418                     found = TRUE;
 419                     break;
 420                 }
 421             } while (SymGetLineNext(dbg_curr_process->handle, &il));
 422             if (!found)
 423                 WINE_FIXME("No line (%d) found for %s (setting to symbol start)\n",
 424                            lineno, name);
 425         }
 426     }
 427
 428     if (sgv.num - sgv.num_thunks > 1 || /* many symbols non thunks (and showing only non thunks) */
 429         (sgv.num > 1 && DBG_IVAR(AlwaysShowThunks)) || /* many symbols (showing symbols & thunks) */
 430         (sgv.num == sgv.num_thunks && sgv.num_thunks > 1))
 431     {
 432         return symbol_current_picker(name, &sgv, rtn);
 433     }
 434     /* first symbol is the one we want:
 435      * - only one symbol found,
 436      * - or many symbols but only one non thunk when AlwaysShowThunks is FALSE
 437      */
 438     *rtn = sgv.syms[0].lvalue;
 439     return sglv_found;
 440 }
 441
 442 BOOL symbol_is_local(const char* name)
 443 {
 444     struct sgv_data             sgv;
 445     IMAGEHLP_STACK_FRAME        ihsf;
 446
 447     sgv.num        = 0;
 448     sgv.num_thunks = 0;
 449     sgv.name       = name;
 450     sgv.do_thunks  = FALSE;
 451
 452     if (stack_get_current_frame(&ihsf))
 453     {
 454         sgv.frame_offset = ihsf.FrameOffset;
 455         SymEnumSymbols(dbg_curr_process->handle, 0, name, sgv_cb, (void*)&sgv);
 456     }
 457     return sgv.num > 0;
 458 }
 459
 460 /***********************************************************************
 461  *           symbol_read_symtable
 462  *
 463  * Read a symbol file into the hash table.
 464  */
 465 void symbol_read_symtable(const char* filename, unsigned long offset)
 466 {
 467     dbg_printf("No longer supported\n");
 468
 469 #if 0
 470 /* FIXME: have to implement SymAddSymbol in dbghelp, but likely we'll need to link
 471  * this with an already loaded module !!
 472  */
 473     FILE*       symbolfile;
 474     unsigned    addr;
 475     char        type;
 476     char*       cpnt;
 477     char        buffer[256];
 478     char        name[256];
 479
 480     if (!(symbolfile = fopen(filename, "r")))
 481     {
 482         WINE_WARN("Unable to open symbol table %s\n", filename);
 483         return;
 484     }
 485
 486     dbg_printf("Reading symbols from file %s\n", filename);
 487
 488     while (1)
 489     {
 490         fgets(buffer, sizeof(buffer), symbolfile);
 491         if (feof(symbolfile)) break;
 492
 493         /* Strip any text after a # sign (i.e. comments) */
 494         cpnt = strchr(buffer, '#');
 495         if (cpnt) *cpnt = '\0';
 496
 497         /* Quietly ignore any lines that have just whitespace */
 498         for (cpnt = buffer; *cpnt; cpnt++)
 499         {
 500             if (*cpnt != ' ' && *cpnt != '\t') break;
 501         }
 502         if (!*cpnt || *cpnt == '\n') continue;
 503
 504         if (sscanf(buffer, "%lx %c %s", &addr, &type, name) == 3)
 505         {
 506             if (value.addr.off + offset < value.addr.off)
 507                 WINE_WARN("Address wrap around\n");
 508             value.addr.off += offset;
 509             SymAddSymbol(current_process->handle, BaseOfDll,
 510                          name, addr, 0, 0);
 511         }
 512     }
 513     fclose(symbolfile);
 514 #endif
 515 }
 516
 517 /***********************************************************************
 518  *           symbol_get_function_line_status
 519  *
 520  * Find the symbol nearest to a given address.
 521  */
 522 enum dbg_line_status symbol_get_function_line_status(const ADDRESS64* addr)
 523 {
 524     IMAGEHLP_LINE       il;
 525     DWORD               disp;
 526     ULONG64             disp64, start;
 527     DWORD_PTR           lin = (DWORD_PTR)memory_to_linear_addr(addr);
 528     char                buffer[sizeof(SYMBOL_INFO) + 256];
 529     SYMBOL_INFO*        sym = (SYMBOL_INFO*)buffer;
 530     struct dbg_type     func;
 531
 532     il.SizeOfStruct = sizeof(il);
 533     sym->SizeOfStruct = sizeof(SYMBOL_INFO);
 534     sym->MaxNameLen = sizeof(buffer) - sizeof(SYMBOL_INFO);
 535
 536     /* do we have some info for lin address ? */
 537     if (!SymFromAddr(dbg_curr_process->handle, lin, &disp64, sym))
 538         return dbg_no_line_info;
 539
 540     switch (sym->Tag)
 541     {
 542     case SymTagThunk:
 543         /* FIXME: so far dbghelp doesn't return the 16 <=> 32 thunks
 544          * and furthermore, we no longer take care of them !!!
 545          */
 546         return dbg_in_a_thunk;
 547     case SymTagFunction:
 548     case SymTagPublicSymbol: break;
 549     default:
 550         WINE_FIXME("Unexpected sym-tag 0x%08x\n", sym->Tag);
 551     case SymTagData:
 552         return dbg_no_line_info;
 553     }
 554     /* we should have a function now */
 555     if (!SymGetLineFromAddr(dbg_curr_process->handle, lin, &disp, &il))
 556         return dbg_no_line_info;
 557
 558     func.module = sym->ModBase;
 559     func.id     = sym->info;
 560
 561     if (symbol_get_debug_start(&func, &start) && lin < start)
 562         return dbg_not_on_a_line_number;
 563
 564     if (!sym->Size) sym->Size = 0x100000;
 565     if (il.FileName && il.FileName[0] && disp < sym->Size)
 566         return (disp == 0) ? dbg_on_a_line_number : dbg_not_on_a_line_number;
 567
 568     return dbg_no_line_info;
 569 }
 570
 571 /***********************************************************************
 572  *           symbol_get_line
 573  *
 574  * Find the symbol nearest to a given address.
 575  * Returns sourcefile name and line number in a format that the listing
 576  * handler can deal with.
 577  */
 578 BOOL symbol_get_line(const char* filename, const char* name, IMAGEHLP_LINE* line)
 579 {
 580     struct sgv_data     sgv;
 581     char                buffer[512];
 582     DWORD               opt, disp;
 583     unsigned            i, found = FALSE;
 584     IMAGEHLP_LINE       il;
 585
 586     sgv.num        = 0;
 587     sgv.num_thunks = 0;
 588     sgv.name       = &buffer[2];
 589     sgv.do_thunks  = FALSE;
 590
 591     buffer[0] = '*';
 592     buffer[1] = '!';
 593     strcpy(&buffer[2], name);
 594
 595     /* this is a wine specific options to return also ELF modules in the
 596      * enumeration
 597      */
 598     SymSetOptions((opt = SymGetOptions()) | 0x40000000);
 599     if (!SymEnumSymbols(dbg_curr_process->handle, 0, buffer, sgv_cb, (void*)&sgv))
 600     {
 601         SymSetOptions(opt);
 602         return FALSE;
 603     }
 604
 605     if (!sgv.num && (name[0] != '_'))
 606     {
 607         buffer[2] = '_';
 608         strcpy(&buffer[3], name);
 609         if (!SymEnumSymbols(dbg_curr_process->handle, 0, buffer, sgv_cb, (void*)&sgv))
 610         {
 611             SymSetOptions(opt);
 612             return FALSE;
 613         }
 614     }
 615     SymSetOptions(opt);
 616
 617     for (i = 0; i < sgv.num; i++)
 618     {
 619         DWORD_PTR linear = (DWORD_PTR)memory_to_linear_addr(&sgv.syms[i].lvalue.addr);
 620
 621         il.SizeOfStruct = sizeof(il);
 622         if (!SymGetLineFromAddr(dbg_curr_process->handle, linear, &disp, &il))
 623             continue;
 624         if (filename && strcmp(il.FileName, filename)) continue;
 625         if (found)
 626         {
 627             WINE_FIXME("Several found, returning first (may not be what you want)...\n");
 628             break;
 629         }
 630         found = TRUE;
 631         *line = il;
 632     }
 633     if (!found)
 634     {
 635         if (filename)   dbg_printf("No such function %s in %s\n", name, filename);
 636         else            dbg_printf("No such function %s\n", name);
 637         return FALSE;
 638     }
 639     return TRUE;
 640 }
 641
 642 /******************************************************************
 643  *              symbol_print_local
 644  *
 645  * Overall format is:
 646  * <name>=<value>                       in non detailed form
 647  * <name>=<value> (local|pmt <where>)   in detailed form
 648  * Note <value> can be an error message in case of error
 649  */
 650 void symbol_print_local(const SYMBOL_INFO* sym, ULONG_PTR base, BOOL detailed)
 651 {
 652     struct dbg_lvalue   lvalue;
 653     char                buffer[64];
 654
 655     dbg_printf("%s=", sym->Name);
 656
 657     if (fill_sym_lvalue(sym, base, &lvalue, buffer, sizeof(buffer)))
 658     {
 659         print_value(&lvalue, 0, 1);
 660         if (detailed)
 661             dbg_printf(" (%s%s)",
 662                        (sym->Flags & SYMFLAG_PARAMETER) ? "parameter" : "local",
 663                        buffer);
 664     }
 665     else
 666     {
 667         dbg_printf("%s", buffer);
 668         if (detailed)
 669             dbg_printf(" (%s)",
 670                        (sym->Flags & SYMFLAG_PARAMETER) ? "parameter" : "local");
 671     }
 672 }
 673
 674 static BOOL CALLBACK info_locals_cb(PSYMBOL_INFO sym, ULONG size, PVOID ctx)
 675 {
 676     struct dbg_type     type;
 677
 678     dbg_printf("\t");
 679     type.module = sym->ModBase;
 680     type.id = sym->TypeIndex;
 681     types_print_type(&type, FALSE);
 682
 683     dbg_printf(" ");
 684     symbol_print_local(sym, (ULONG_PTR)ctx, TRUE);
 685     dbg_printf("\n");
 686
 687     return TRUE;
 688 }
 689
 690 int symbol_info_locals(void)
 691 {
 692     IMAGEHLP_STACK_FRAME        ihsf;
 693     ADDRESS64                   addr;
 694
 695     stack_get_current_frame(&ihsf);
 696     addr.Mode = AddrModeFlat;
 697     addr.Offset = ihsf.InstructionOffset;
 698     print_address(&addr, FALSE);
 699     dbg_printf(": (%08lx)\n", (DWORD_PTR)ihsf.FrameOffset);
 700     SymEnumSymbols(dbg_curr_process->handle, 0, NULL, info_locals_cb, (void*)(DWORD_PTR)ihsf.FrameOffset);
 701
 702     return TRUE;
 703
 704 }
 705
 706 static BOOL CALLBACK symbols_info_cb(PSYMBOL_INFO sym, ULONG size, PVOID ctx)
 707 {
 708     struct dbg_type     type;
 709     IMAGEHLP_MODULE     mi;
 710
 711     mi.SizeOfStruct = sizeof(mi);
 712
 713     if (!SymGetModuleInfo(dbg_curr_process->handle, sym->ModBase, &mi))
 714         mi.ModuleName[0] = '\0';
 715     else
 716     {
 717         size_t  len = strlen(mi.ModuleName);
 718         if (len > 5 && !strcmp(mi.ModuleName + len - 5, "<elf>"))
 719             mi.ModuleName[len - 5] = '\0';
 720     }
 721
 722     dbg_printf("%08lx: %s!%s", (ULONG_PTR)sym->Address, mi.ModuleName, sym->Name);
 723     type.id = sym->TypeIndex;
 724     type.module = sym->ModBase;
 725
 726     if (sym->TypeIndex != dbg_itype_none && sym->TypeIndex != 0)
 727     {
 728         dbg_printf(" ");
 729         types_print_type(&type, FALSE);
 730     }
 731     dbg_printf("\n");
 732     return TRUE;
 733 }
 734
 735 void symbol_info(const char* str)
 736 {
 737     char        buffer[512];
 738     DWORD       opt;
 739
 740     if (strlen(str) + 3 >= sizeof(buffer))
 741     {
 742         dbg_printf("Symbol too long (%s)\n", str);
 743         return;
 744     }
 745     buffer[0] = '*';
 746     buffer[1] = '!';
 747     strcpy(&buffer[2], str);
 748     /* this is a wine specific options to return also ELF modules in the
 749      * enumeration
 750      */
 751     SymSetOptions((opt = SymGetOptions()) | 0x40000000);
 752     SymEnumSymbols(dbg_curr_process->handle, 0, buffer, symbols_info_cb, NULL);
 753     SymSetOptions(opt);
 754 }