git.oblomov.eu Git - wine/blob - programs/winedbg/tgt_active.c

   1 /*
   2  * Wine debugger - back-end for an active target
   3  *
   4  * Copyright 2000-2006 Eric Pouech
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "config.h"
  22
  23 #include <stdlib.h>
  24 #include <stdio.h>
  25 #include <string.h>
  26 #include <stdarg.h>
  27
  28 #include "debugger.h"
  29 #include "psapi.h"
  30 #include "winternl.h"
  31 #include "wine/debug.h"
  32 #include "wine/exception.h"
  33
  34 WINE_DEFAULT_DEBUG_CHANNEL(winedbg);
  35
  36 static char*            dbg_last_cmd_line;
  37 static struct be_process_io be_process_active_io;
  38
  39 static void dbg_init_current_process(void)
  40 {
  41 }
  42
  43 static void dbg_init_current_thread(void* start)
  44 {
  45     if (start)
  46     {
  47         if (dbg_curr_process->threads &&
  48             !dbg_curr_process->threads->next && /* first thread ? */
  49             DBG_IVAR(BreakAllThreadsStartup))
  50         {
  51             ADDRESS64   addr;
  52
  53             break_set_xpoints(FALSE);
  54             addr.Mode   = AddrModeFlat;
  55             addr.Offset = (DWORD)start;
  56             break_add_break(&addr, TRUE, TRUE);
  57             break_set_xpoints(TRUE);
  58         }
  59     }
  60 }
  61
  62 static unsigned dbg_handle_debug_event(DEBUG_EVENT* de);
  63
  64 /******************************************************************
  65  *              dbg_attach_debuggee
  66  *
  67  * Sets the debuggee to <pid>
  68  * cofe instructs winedbg what to do when first exception is received
  69  * (break=FALSE, continue=TRUE)
  70  * wfe is set to TRUE if dbg_attach_debuggee should also proceed with all debug events
  71  * until the first exception is received (aka: attach to an already running process)
  72  */
  73 BOOL dbg_attach_debuggee(DWORD pid, BOOL cofe)
  74 {
  75     if (!(dbg_curr_process = dbg_add_process(&be_process_active_io, pid, 0))) return FALSE;
  76
  77     if (!DebugActiveProcess(pid))
  78     {
  79         dbg_printf("Can't attach process %lx: error %ld\n", pid, GetLastError());
  80         dbg_del_process(dbg_curr_process);
  81         return FALSE;
  82     }
  83     dbg_curr_process->continue_on_first_exception = cofe;
  84
  85     SetEnvironmentVariableA("DBGHELP_NOLIVE", NULL);
  86
  87     dbg_curr_process->active_debuggee = TRUE;
  88     return TRUE;
  89 }
  90
  91 static unsigned dbg_fetch_context(void)
  92 {
  93     dbg_context.ContextFlags = CONTEXT_CONTROL
  94         | CONTEXT_INTEGER | CONTEXT_FLOATING_POINT
  95 #ifdef CONTEXT_SEGMENTS
  96         | CONTEXT_SEGMENTS
  97 #endif
  98 #ifdef CONTEXT_DEBUG_REGISTERS
  99         | CONTEXT_DEBUG_REGISTERS
 100 #endif
 101         ;
 102     if (!GetThreadContext(dbg_curr_thread->handle, &dbg_context))
 103     {
 104         WINE_WARN("Can't get thread's context\n");
 105         return FALSE;
 106     }
 107     return TRUE;
 108 }
 109
 110 static unsigned dbg_exception_prolog(BOOL is_debug, const EXCEPTION_RECORD* rec)
 111 {
 112     ADDRESS64   addr;
 113     BOOL        is_break;
 114     char        hexbuf[MAX_OFFSET_TO_STR_LEN];
 115
 116     memory_get_current_pc(&addr);
 117     break_suspend_execution();
 118     dbg_curr_thread->excpt_record = *rec;
 119     dbg_curr_thread->in_exception = TRUE;
 120
 121     if (!is_debug)
 122     {
 123         switch (addr.Mode)
 124         {
 125         case AddrModeFlat:
 126             dbg_printf(" in 32-bit code (%s)",
 127                        memory_offset_to_string(hexbuf, addr.Offset, 0));
 128             break;
 129         case AddrModeReal:
 130             dbg_printf(" in vm86 code (%04x:%04x)", addr.Segment, (unsigned) addr.Offset);
 131             break;
 132         case AddrMode1616:
 133             dbg_printf(" in 16-bit code (%04x:%04x)", addr.Segment, (unsigned) addr.Offset);
 134             break;
 135         case AddrMode1632:
 136             dbg_printf(" in 32-bit code (%04x:%08lx)", addr.Segment, (unsigned long) addr.Offset);
 137             break;
 138         default: dbg_printf(" bad address");
 139         }
 140         dbg_printf(".\n");
 141     }
 142
 143     /* this will resynchronize builtin dbghelp's internal ELF module list */
 144     SymLoadModule(dbg_curr_process->handle, 0, 0, 0, 0, 0);
 145
 146     /*
 147      * Do a quiet backtrace so that we have an idea of what the situation
 148      * is WRT the source files.
 149      */
 150     stack_fetch_frames();
 151     if (is_debug &&
 152         break_should_continue(&addr, rec->ExceptionCode, &dbg_curr_thread->exec_count, &is_break))
 153         return FALSE;
 154
 155     if (addr.Mode != dbg_curr_thread->addr_mode)
 156     {
 157         const char* name = NULL;
 158
 159         switch (addr.Mode)
 160         {
 161         case AddrMode1616: name = "16 bit";     break;
 162         case AddrMode1632: name = "32 bit";     break;
 163         case AddrModeReal: name = "vm86";       break;
 164         case AddrModeFlat: name = "32 bit";     break;
 165         }
 166
 167         dbg_printf("In %s mode.\n", name);
 168         dbg_curr_thread->addr_mode = addr.Mode;
 169     }
 170     display_print();
 171
 172     if (!is_debug)
 173     {
 174         /* This is a real crash, dump some info */
 175         be_cpu->print_context(dbg_curr_thread->handle, &dbg_context, 0);
 176         stack_info();
 177         be_cpu->print_segment_info(dbg_curr_thread->handle, &dbg_context);
 178         stack_backtrace(dbg_curr_tid);
 179     }
 180     else
 181     {
 182         static char*        last_name;
 183         static char*        last_file;
 184
 185         char                buffer[sizeof(SYMBOL_INFO) + 256];
 186         SYMBOL_INFO*        si = (SYMBOL_INFO*)buffer;
 187         void*               lin = memory_to_linear_addr(&addr);
 188         DWORD64             disp64;
 189         IMAGEHLP_LINE       il;
 190         DWORD               disp;
 191
 192         si->SizeOfStruct = sizeof(*si);
 193         si->MaxNameLen   = 256;
 194         il.SizeOfStruct = sizeof(il);
 195         if (SymFromAddr(dbg_curr_process->handle, (DWORD_PTR)lin, &disp64, si) &&
 196             SymGetLineFromAddr(dbg_curr_process->handle, (DWORD_PTR)lin, &disp, &il))
 197         {
 198             if ((!last_name || strcmp(last_name, si->Name)) ||
 199                 (!last_file || strcmp(last_file, il.FileName)))
 200             {
 201                 HeapFree(GetProcessHeap(), 0, last_name);
 202                 HeapFree(GetProcessHeap(), 0, last_file);
 203                 last_name = strcpy(HeapAlloc(GetProcessHeap(), 0, strlen(si->Name) + 1), si->Name);
 204                 last_file = strcpy(HeapAlloc(GetProcessHeap(), 0, strlen(il.FileName) + 1), il.FileName);
 205                 dbg_printf("%s () at %s:%ld\n", last_name, last_file, il.LineNumber);
 206             }
 207         }
 208     }
 209     if (!is_debug || is_break ||
 210         dbg_curr_thread->exec_mode == dbg_exec_step_over_insn ||
 211         dbg_curr_thread->exec_mode == dbg_exec_step_into_insn)
 212     {
 213         ADDRESS64 tmp = addr;
 214         /* Show where we crashed */
 215         memory_disasm_one_insn(&tmp);
 216     }
 217     source_list_from_addr(&addr, 0);
 218
 219     return TRUE;
 220 }
 221
 222 static void dbg_exception_epilog(void)
 223 {
 224     break_restart_execution(dbg_curr_thread->exec_count);
 225     /*
 226      * This will have gotten absorbed into the breakpoint info
 227      * if it was used.  Otherwise it would have been ignored.
 228      * In any case, we don't mess with it any more.
 229      */
 230     if (dbg_curr_thread->exec_mode == dbg_exec_cont)
 231         dbg_curr_thread->exec_count = 0;
 232     dbg_curr_thread->in_exception = FALSE;
 233 }
 234
 235 static DWORD dbg_handle_exception(const EXCEPTION_RECORD* rec, BOOL first_chance)
 236 {
 237     BOOL                is_debug = FALSE;
 238     THREADNAME_INFO*    pThreadName;
 239     struct dbg_thread*  pThread;
 240
 241     assert(dbg_curr_thread);
 242
 243     WINE_TRACE("exception=%lx first_chance=%c\n",
 244                rec->ExceptionCode, first_chance ? 'Y' : 'N');
 245
 246     switch (rec->ExceptionCode)
 247     {
 248     case EXCEPTION_BREAKPOINT:
 249     case EXCEPTION_SINGLE_STEP:
 250         is_debug = TRUE;
 251         break;
 252     case EXCEPTION_NAME_THREAD:
 253         pThreadName = (THREADNAME_INFO*)(rec->ExceptionInformation);
 254         if (pThreadName->dwThreadID == -1)
 255             pThread = dbg_curr_thread;
 256         else
 257             pThread = dbg_get_thread(dbg_curr_process, pThreadName->dwThreadID);
 258
 259         if (dbg_read_memory(pThreadName->szName, pThread->name, 9))
 260             dbg_printf("Thread ID=0x%lx renamed using MS VC6 extension (name==\"%s\")\n",
 261                        pThread->tid, pThread->name);
 262         return DBG_CONTINUE;
 263     }
 264
 265     if (first_chance && !is_debug && !DBG_IVAR(BreakOnFirstChance) &&
 266         !(rec->ExceptionFlags & EH_STACK_INVALID))
 267     {
 268         /* pass exception to program except for debug exceptions */
 269         return DBG_EXCEPTION_NOT_HANDLED;
 270     }
 271
 272     if (!is_debug)
 273     {
 274         /* print some infos */
 275         dbg_printf("%s: ",
 276                    first_chance ? "First chance exception" : "Unhandled exception");
 277         switch (rec->ExceptionCode)
 278         {
 279         case EXCEPTION_INT_DIVIDE_BY_ZERO:
 280             dbg_printf("divide by zero");
 281             break;
 282         case EXCEPTION_INT_OVERFLOW:
 283             dbg_printf("overflow");
 284             break;
 285         case EXCEPTION_ARRAY_BOUNDS_EXCEEDED:
 286             dbg_printf("array bounds");
 287             break;
 288         case EXCEPTION_ILLEGAL_INSTRUCTION:
 289             dbg_printf("illegal instruction");
 290             break;
 291         case EXCEPTION_STACK_OVERFLOW:
 292             dbg_printf("stack overflow");
 293             break;
 294         case EXCEPTION_PRIV_INSTRUCTION:
 295             dbg_printf("privileged instruction");
 296             break;
 297         case EXCEPTION_ACCESS_VIOLATION:
 298             if (rec->NumberParameters == 2)
 299                 dbg_printf("page fault on %s access to 0x%08lx",
 300                            rec->ExceptionInformation[0] == EXCEPTION_WRITE_FAULT ? "write" :
 301                            rec->ExceptionInformation[0] == EXCEPTION_EXECUTE_FAULT ? "execute" : "read",
 302                            rec->ExceptionInformation[1]);
 303             else
 304                 dbg_printf("page fault");
 305             break;
 306         case EXCEPTION_DATATYPE_MISALIGNMENT:
 307             dbg_printf("Alignment");
 308             break;
 309         case DBG_CONTROL_C:
 310             dbg_printf("^C");
 311             break;
 312         case CONTROL_C_EXIT:
 313             dbg_printf("^C");
 314             break;
 315         case STATUS_POSSIBLE_DEADLOCK:
 316         {
 317             ADDRESS64       addr;
 318
 319             addr.Mode   = AddrModeFlat;
 320             addr.Offset = rec->ExceptionInformation[0];
 321
 322             dbg_printf("wait failed on critical section ");
 323             print_address(&addr, FALSE);
 324         }
 325         if (!DBG_IVAR(BreakOnCritSectTimeOut))
 326         {
 327             dbg_printf("\n");
 328             return DBG_EXCEPTION_NOT_HANDLED;
 329         }
 330         break;
 331         case EXCEPTION_WINE_STUB:
 332         {
 333             char dll[32], name[64];
 334             memory_get_string(dbg_curr_process,
 335                               (void*)rec->ExceptionInformation[0], TRUE, FALSE,
 336                               dll, sizeof(dll));
 337             if (HIWORD(rec->ExceptionInformation[1]))
 338                 memory_get_string(dbg_curr_process,
 339                                   (void*)rec->ExceptionInformation[1], TRUE, FALSE,
 340                                   name, sizeof(name));
 341             else
 342                 sprintf( name, "%ld", rec->ExceptionInformation[1] );
 343             dbg_printf("unimplemented function %s.%s called", dll, name);
 344         }
 345         break;
 346         case EXCEPTION_WINE_ASSERTION:
 347             dbg_printf("assertion failed");
 348             break;
 349         case EXCEPTION_VM86_INTx:
 350             dbg_printf("interrupt %02lx in vm86 mode", rec->ExceptionInformation[0]);
 351             break;
 352         case EXCEPTION_VM86_STI:
 353             dbg_printf("sti in vm86 mode");
 354             break;
 355         case EXCEPTION_VM86_PICRETURN:
 356             dbg_printf("PIC return in vm86 mode");
 357             break;
 358         case EXCEPTION_FLT_DENORMAL_OPERAND:
 359             dbg_printf("denormal float operand");
 360             break;
 361         case EXCEPTION_FLT_DIVIDE_BY_ZERO:
 362             dbg_printf("divide by zero");
 363             break;
 364         case EXCEPTION_FLT_INEXACT_RESULT:
 365             dbg_printf("inexact float result");
 366             break;
 367         case EXCEPTION_FLT_INVALID_OPERATION:
 368             dbg_printf("invalid float operation");
 369             break;
 370         case EXCEPTION_FLT_OVERFLOW:
 371             dbg_printf("floating pointer overflow");
 372             break;
 373         case EXCEPTION_FLT_UNDERFLOW:
 374             dbg_printf("floating pointer underflow");
 375             break;
 376         case EXCEPTION_FLT_STACK_CHECK:
 377             dbg_printf("floating point stack check");
 378             break;
 379         default:
 380             dbg_printf("0x%08lx", rec->ExceptionCode);
 381             break;
 382         }
 383     }
 384     if( (rec->ExceptionFlags & EH_STACK_INVALID) ) {
 385         dbg_printf( ", invalid program stack" );
 386     }
 387
 388     if (dbg_exception_prolog(is_debug, rec))
 389     {
 390         dbg_interactiveP = TRUE;
 391         return 0;
 392     }
 393     dbg_exception_epilog();
 394
 395     return DBG_CONTINUE;
 396 }
 397
 398 static BOOL tgt_process_active_close_process(struct dbg_process* pcs, BOOL kill);
 399
 400 static void fetch_module_name(void* name_addr, BOOL unicode, void* mod_addr,
 401                               char* buffer, size_t bufsz, BOOL is_pcs)
 402 {
 403     memory_get_string_indirect(dbg_curr_process, name_addr, unicode, buffer, bufsz);
 404     if (!buffer[0] &&
 405         !GetModuleFileNameExA(dbg_curr_process->handle, mod_addr, buffer, bufsz))
 406     {
 407         if (is_pcs)
 408         {
 409             HMODULE h;
 410             WORD (WINAPI *gpif)(HANDLE, LPSTR, DWORD);
 411
 412             /* On Windows, when we get the process creation debug event for a process
 413              * created by winedbg, the modules' list is not initialized yet. Hence,
 414              * GetModuleFileNameExA (on the main module) will generate an error.
 415              * Psapi (starting on XP) provides GetProcessImageFileName() which should
 416              * give us the expected result
 417              */
 418             if (!(h = GetModuleHandleA("psapi")) ||
 419                 !(gpif = (void*)GetProcAddress(h, "GetProcessImageFileName")) ||
 420                 !(gpif)(dbg_curr_process->handle, buffer, bufsz))
 421                 snprintf(buffer, bufsz, "Process_%08lx", dbg_curr_pid);
 422         }
 423         else
 424             snprintf(buffer, bufsz, "DLL_%p", mod_addr);
 425     }
 426 }
 427
 428 static unsigned dbg_handle_debug_event(DEBUG_EVENT* de)
 429 {
 430     char        buffer[256];
 431     DWORD       cont = DBG_CONTINUE;
 432
 433     dbg_curr_pid = de->dwProcessId;
 434     dbg_curr_tid = de->dwThreadId;
 435
 436     if ((dbg_curr_process = dbg_get_process(de->dwProcessId)) != NULL)
 437         dbg_curr_thread = dbg_get_thread(dbg_curr_process, de->dwThreadId);
 438     else
 439         dbg_curr_thread = NULL;
 440
 441     switch (de->dwDebugEventCode)
 442     {
 443     case EXCEPTION_DEBUG_EVENT:
 444         if (!dbg_curr_thread)
 445         {
 446             WINE_ERR("%08lx:%08lx: not a registered process or thread (perhaps a 16 bit one ?)\n",
 447                      de->dwProcessId, de->dwThreadId);
 448             break;
 449         }
 450
 451         WINE_TRACE("%08lx:%08lx: exception code=%08lx\n",
 452                    de->dwProcessId, de->dwThreadId,
 453                    de->u.Exception.ExceptionRecord.ExceptionCode);
 454
 455         if (dbg_curr_process->continue_on_first_exception)
 456         {
 457             dbg_curr_process->continue_on_first_exception = FALSE;
 458             if (!DBG_IVAR(BreakOnAttach)) break;
 459         }
 460         if (dbg_fetch_context())
 461         {
 462             cont = dbg_handle_exception(&de->u.Exception.ExceptionRecord,
 463                                         de->u.Exception.dwFirstChance);
 464             if (cont && dbg_curr_thread)
 465             {
 466                 SetThreadContext(dbg_curr_thread->handle, &dbg_context);
 467             }
 468         }
 469         break;
 470
 471     case CREATE_PROCESS_DEBUG_EVENT:
 472         dbg_curr_process = dbg_add_process(&be_process_active_io, de->dwProcessId,
 473                                            de->u.CreateProcessInfo.hProcess);
 474         if (dbg_curr_process == NULL)
 475         {
 476             WINE_ERR("Couldn't create process\n");
 477             break;
 478         }
 479         fetch_module_name(de->u.CreateProcessInfo.lpImageName,
 480                           de->u.CreateProcessInfo.fUnicode,
 481                           de->u.CreateProcessInfo.lpBaseOfImage,
 482                           buffer, sizeof(buffer), TRUE);
 483
 484         WINE_TRACE("%08lx:%08lx: create process '%s'/%p @%08lx (%ld<%ld>)\n",
 485                    de->dwProcessId, de->dwThreadId,
 486                    buffer, de->u.CreateProcessInfo.lpImageName,
 487                    (unsigned long)(void*)de->u.CreateProcessInfo.lpStartAddress,
 488                    de->u.CreateProcessInfo.dwDebugInfoFileOffset,
 489                    de->u.CreateProcessInfo.nDebugInfoSize);
 490         dbg_set_process_name(dbg_curr_process, buffer);
 491
 492         if (!SymInitialize(dbg_curr_process->handle, NULL, FALSE))
 493             dbg_printf("Couldn't initiate DbgHelp\n");
 494         if (!SymLoadModule(dbg_curr_process->handle, de->u.CreateProcessInfo.hFile, buffer, NULL,
 495                            (unsigned long)de->u.CreateProcessInfo.lpBaseOfImage, 0))
 496             dbg_printf("couldn't load main module (%lx)\n", GetLastError());
 497
 498         WINE_TRACE("%08lx:%08lx: create thread I @%08lx\n",
 499                    de->dwProcessId, de->dwThreadId,
 500                    (unsigned long)(void*)de->u.CreateProcessInfo.lpStartAddress);
 501
 502         dbg_curr_thread = dbg_add_thread(dbg_curr_process,
 503                                          de->dwThreadId,
 504                                          de->u.CreateProcessInfo.hThread,
 505                                          de->u.CreateProcessInfo.lpThreadLocalBase);
 506         if (!dbg_curr_thread)
 507         {
 508             WINE_ERR("Couldn't create thread\n");
 509             break;
 510         }
 511         dbg_init_current_process();
 512         dbg_init_current_thread(de->u.CreateProcessInfo.lpStartAddress);
 513         break;
 514
 515     case EXIT_PROCESS_DEBUG_EVENT:
 516         WINE_TRACE("%08lx:%08lx: exit process (%ld)\n",
 517                    de->dwProcessId, de->dwThreadId, de->u.ExitProcess.dwExitCode);
 518
 519         if (dbg_curr_process == NULL)
 520         {
 521             WINE_ERR("Unknown process\n");
 522             break;
 523         }
 524         tgt_process_active_close_process(dbg_curr_process, FALSE);
 525         dbg_printf("Process of pid=0x%08lx has terminated\n", de->dwProcessId);
 526         break;
 527
 528     case CREATE_THREAD_DEBUG_EVENT:
 529         WINE_TRACE("%08lx:%08lx: create thread D @%08lx\n",
 530                    de->dwProcessId, de->dwThreadId,
 531                    (unsigned long)(void*)de->u.CreateThread.lpStartAddress);
 532
 533         if (dbg_curr_process == NULL)
 534         {
 535             WINE_ERR("Unknown process\n");
 536             break;
 537         }
 538         if (dbg_get_thread(dbg_curr_process, de->dwThreadId) != NULL)
 539         {
 540             WINE_TRACE("Thread already listed, skipping\n");
 541             break;
 542         }
 543
 544         dbg_curr_thread = dbg_add_thread(dbg_curr_process,
 545                                          de->dwThreadId,
 546                                          de->u.CreateThread.hThread,
 547                                          de->u.CreateThread.lpThreadLocalBase);
 548         if (!dbg_curr_thread)
 549         {
 550             WINE_ERR("Couldn't create thread\n");
 551             break;
 552         }
 553         dbg_init_current_thread(de->u.CreateThread.lpStartAddress);
 554         break;
 555
 556     case EXIT_THREAD_DEBUG_EVENT:
 557         WINE_TRACE("%08lx:%08lx: exit thread (%ld)\n",
 558                    de->dwProcessId, de->dwThreadId, de->u.ExitThread.dwExitCode);
 559
 560         if (dbg_curr_thread == NULL)
 561         {
 562             WINE_ERR("Unknown thread\n");
 563             break;
 564         }
 565         /* FIXME: remove break point set on thread startup */
 566         dbg_del_thread(dbg_curr_thread);
 567         break;
 568
 569     case LOAD_DLL_DEBUG_EVENT:
 570         if (dbg_curr_thread == NULL)
 571         {
 572             WINE_ERR("Unknown thread\n");
 573             break;
 574         }
 575         fetch_module_name(de->u.LoadDll.lpImageName,
 576                           de->u.LoadDll.fUnicode,
 577                           de->u.LoadDll.lpBaseOfDll,
 578                           buffer, sizeof(buffer), FALSE);
 579
 580         WINE_TRACE("%08lx:%08lx: loads DLL %s @%08lx (%ld<%ld>)\n",
 581                    de->dwProcessId, de->dwThreadId,
 582                    buffer, (unsigned long)de->u.LoadDll.lpBaseOfDll,
 583                    de->u.LoadDll.dwDebugInfoFileOffset,
 584                    de->u.LoadDll.nDebugInfoSize);
 585         SymLoadModule(dbg_curr_process->handle, de->u.LoadDll.hFile, buffer, NULL,
 586                       (unsigned long)de->u.LoadDll.lpBaseOfDll, 0);
 587         break_set_xpoints(FALSE);
 588         break_check_delayed_bp();
 589         break_set_xpoints(TRUE);
 590         if (DBG_IVAR(BreakOnDllLoad))
 591         {
 592             dbg_printf("Stopping on DLL %s loading at 0x%08lx\n",
 593                        buffer, (unsigned long)de->u.LoadDll.lpBaseOfDll);
 594             if (dbg_fetch_context()) cont = 0;
 595         }
 596         break;
 597
 598     case UNLOAD_DLL_DEBUG_EVENT:
 599         WINE_TRACE("%08lx:%08lx: unload DLL @%08lx\n",
 600                    de->dwProcessId, de->dwThreadId,
 601                    (unsigned long)de->u.UnloadDll.lpBaseOfDll);
 602         break_delete_xpoints_from_module((unsigned long)de->u.UnloadDll.lpBaseOfDll);
 603         SymUnloadModule(dbg_curr_process->handle,
 604                         (unsigned long)de->u.UnloadDll.lpBaseOfDll);
 605         break;
 606
 607     case OUTPUT_DEBUG_STRING_EVENT:
 608         if (dbg_curr_thread == NULL)
 609         {
 610             WINE_ERR("Unknown thread\n");
 611             break;
 612         }
 613
 614         memory_get_string(dbg_curr_process,
 615                           de->u.DebugString.lpDebugStringData, TRUE,
 616                           de->u.DebugString.fUnicode, buffer, sizeof(buffer));
 617         WINE_TRACE("%08lx:%08lx: output debug string (%s)\n",
 618                    de->dwProcessId, de->dwThreadId, buffer);
 619         break;
 620
 621     case RIP_EVENT:
 622         WINE_TRACE("%08lx:%08lx: rip error=%ld type=%ld\n",
 623                    de->dwProcessId, de->dwThreadId, de->u.RipInfo.dwError,
 624                    de->u.RipInfo.dwType);
 625         break;
 626
 627     default:
 628         WINE_TRACE("%08lx:%08lx: unknown event (%ld)\n",
 629                    de->dwProcessId, de->dwThreadId, de->dwDebugEventCode);
 630     }
 631     if (!cont) return TRUE;  /* stop execution */
 632     ContinueDebugEvent(de->dwProcessId, de->dwThreadId, cont);
 633     return FALSE;  /* continue execution */
 634 }
 635
 636 static void dbg_resume_debuggee(DWORD cont)
 637 {
 638     if (dbg_curr_thread->in_exception)
 639     {
 640         ADDRESS64       addr;
 641         char            hexbuf[MAX_OFFSET_TO_STR_LEN];
 642
 643         dbg_exception_epilog();
 644         memory_get_current_pc(&addr);
 645         WINE_TRACE("Exiting debugger      PC=%s mode=%d count=%d\n",
 646                    memory_offset_to_string(hexbuf, addr.Offset, 0),
 647                    dbg_curr_thread->exec_mode,
 648                    dbg_curr_thread->exec_count);
 649         if (dbg_curr_thread)
 650         {
 651             if (!SetThreadContext(dbg_curr_thread->handle, &dbg_context))
 652                 dbg_printf("Cannot set ctx on %lu\n", dbg_curr_tid);
 653         }
 654     }
 655     dbg_interactiveP = FALSE;
 656     if (!ContinueDebugEvent(dbg_curr_pid, dbg_curr_tid, cont))
 657         dbg_printf("Cannot continue on %lu (%lu)\n", dbg_curr_tid, cont);
 658 }
 659
 660 static void wait_exception(void)
 661 {
 662     DEBUG_EVENT         de;
 663
 664     while (dbg_curr_process && WaitForDebugEvent(&de, INFINITE))
 665     {
 666         if (dbg_handle_debug_event(&de)) break;
 667     }
 668     dbg_interactiveP = TRUE;
 669 }
 670
 671 void dbg_wait_next_exception(DWORD cont, int count, int mode)
 672 {
 673     ADDRESS64           addr;
 674     char                hexbuf[MAX_OFFSET_TO_STR_LEN];
 675
 676     if (cont == DBG_CONTINUE)
 677     {
 678         dbg_curr_thread->exec_count = count;
 679         dbg_curr_thread->exec_mode = mode;
 680     }
 681     dbg_resume_debuggee(cont);
 682
 683     wait_exception();
 684     if (!dbg_curr_process) return;
 685
 686     memory_get_current_pc(&addr);
 687     WINE_TRACE("Entering debugger     PC=%s mode=%d count=%d\n",
 688                memory_offset_to_string(hexbuf, addr.Offset, 0),
 689                dbg_curr_thread->exec_mode,
 690                dbg_curr_thread->exec_count);
 691 }
 692
 693 void     dbg_active_wait_for_first_exception(void)
 694 {
 695     dbg_interactiveP = FALSE;
 696     /* wait for first exception */
 697     wait_exception();
 698 }
 699
 700 static  unsigned dbg_start_debuggee(LPSTR cmdLine)
 701 {
 702     PROCESS_INFORMATION info;
 703     STARTUPINFOA        startup;
 704
 705     memset(&startup, 0, sizeof(startup));
 706     startup.cb = sizeof(startup);
 707     startup.dwFlags = STARTF_USESHOWWINDOW;
 708     startup.wShowWindow = SW_SHOWNORMAL;
 709
 710     /* FIXME: shouldn't need the CREATE_NEW_CONSOLE, but as usual CUI:s need it
 711      * while GUI:s don't
 712      */
 713     if (!CreateProcess(NULL, cmdLine, NULL, NULL,
 714                        FALSE,
 715                        DEBUG_PROCESS|DEBUG_ONLY_THIS_PROCESS|CREATE_NEW_CONSOLE,
 716                        NULL, NULL, &startup, &info))
 717     {
 718         dbg_printf("Couldn't start process '%s'\n", cmdLine);
 719         return FALSE;
 720     }
 721     if (!info.dwProcessId)
 722     {
 723         /* this happens when the program being run is not a Wine binary
 724          * (for example, a shell wrapper around a WineLib app)
 725          */
 726         /* Current fix: list running processes and let the user attach
 727          * to one of them (sic)
 728          * FIXME: implement a real fix => grab the process (from the
 729          * running processes) from its name
 730          */
 731         dbg_printf("Debuggee has been started (%s)\n"
 732                    "But WineDbg isn't attached to it. Maybe you're trying to debug a winelib wrapper ??\n"
 733                    "Try to attach to one of those processes:\n", cmdLine);
 734         /* FIXME: (HACK) we need some time before the wrapper executes the winelib app */
 735         Sleep(100);
 736         info_win32_processes();
 737         return TRUE;
 738     }
 739     dbg_curr_pid = info.dwProcessId;
 740     if (!(dbg_curr_process = dbg_add_process(&be_process_active_io, dbg_curr_pid, 0))) return FALSE;
 741     dbg_curr_process->active_debuggee = TRUE;
 742
 743     return TRUE;
 744 }
 745
 746 void    dbg_run_debuggee(const char* args)
 747 {
 748     if (args)
 749     {
 750         WINE_FIXME("Re-running current program with %s as args is broken\n", args);
 751         return;
 752     }
 753     else
 754     {
 755         if (!dbg_last_cmd_line)
 756         {
 757             dbg_printf("Cannot find previously used command line.\n");
 758             return;
 759         }
 760         dbg_start_debuggee(dbg_last_cmd_line);
 761         dbg_active_wait_for_first_exception();
 762         source_list_from_addr(NULL, 0);
 763     }
 764 }
 765
 766 static BOOL     str2int(const char* str, DWORD* val)
 767 {
 768     char*   ptr;
 769
 770     *val = strtol(str, &ptr, 10);
 771     return str < ptr && !*ptr;
 772 }
 773
 774
 775 /******************************************************************
 776  *              dbg_active_attach
 777  *
 778  * Tries to attach to a running process
 779  * Handles the <pid> or <pid> <evt> forms
 780  */
 781 enum dbg_start  dbg_active_attach(int argc, char* argv[])
 782 {
 783     DWORD       pid, evt;
 784
 785     /* try the form <myself> pid */
 786     if (argc == 1 && str2int(argv[0], &pid) && pid != 0)
 787     {
 788         if (!dbg_attach_debuggee(pid, FALSE))
 789             return start_error_init;
 790     }
 791     /* try the form <myself> pid evt (Win32 JIT debugger) */
 792     else if (argc == 2 && str2int(argv[0], &pid) && pid != 0 &&
 793              str2int(argv[1], &evt) && evt != 0)
 794     {
 795         if (!dbg_attach_debuggee(pid, TRUE))
 796         {
 797             /* don't care about result */
 798             SetEvent((HANDLE)evt);
 799             return start_error_init;
 800         }
 801         if (!SetEvent((HANDLE)evt))
 802         {
 803             WINE_ERR("Invalid event handle: %lx\n", evt);
 804             return start_error_init;
 805         }
 806         CloseHandle((HANDLE)evt);
 807     }
 808     else return start_error_parse;
 809
 810     dbg_curr_pid = pid;
 811     return start_ok;
 812 }
 813
 814 /******************************************************************
 815  *              dbg_active_launch
 816  *
 817  * Launches a debuggee (with its arguments) from argc/argv
 818  */
 819 enum dbg_start    dbg_active_launch(int argc, char* argv[])
 820 {
 821     int         i, len;
 822     LPSTR       cmd_line;
 823
 824     if (argc == 0) return start_error_parse;
 825
 826     if (!(cmd_line = HeapAlloc(GetProcessHeap(), 0, len = 1)))
 827     {
 828     oom_leave:
 829         dbg_printf("Out of memory\n");
 830         return start_error_init;
 831     }
 832     cmd_line[0] = '\0';
 833
 834     for (i = 0; i < argc; i++)
 835     {
 836         len += strlen(argv[i]) + 1;
 837         if (!(cmd_line = HeapReAlloc(GetProcessHeap(), 0, cmd_line, len)))
 838             goto oom_leave;
 839         strcat(cmd_line, argv[i]);
 840         cmd_line[len - 2] = ' ';
 841         cmd_line[len - 1] = '\0';
 842     }
 843
 844     if (!dbg_start_debuggee(cmd_line))
 845     {
 846         HeapFree(GetProcessHeap(), 0, cmd_line);
 847         return start_error_init;
 848     }
 849     HeapFree(GetProcessHeap(), 0, dbg_last_cmd_line);
 850     dbg_last_cmd_line = cmd_line;
 851     return start_ok;
 852 }
 853
 854 /******************************************************************
 855  *              dbg_active_auto
 856  *
 857  * Starts (<pid> or <pid> <evt>) in automatic mode
 858  */
 859 enum dbg_start dbg_active_auto(int argc, char* argv[])
 860 {
 861     HANDLE              hFile;
 862     enum dbg_start      ds = start_error_parse;
 863
 864     if (!strcmp(argv[0], "--auto"))
 865     {
 866         /* auto mode */
 867         argc--; argv++;
 868         ds = dbg_active_attach(argc, argv);
 869         if (ds != start_ok) return ds;
 870         hFile = parser_generate_command_file("echo Modules:", "info share",
 871                                              "echo Threads:", "info threads",
 872                                              NULL);
 873     }
 874     else if (!strcmp(argv[0], "--minidump"))
 875     {
 876         const char*     file = NULL;
 877         char            tmp[8 + 1 + MAX_PATH]; /* minidump <file> */
 878
 879         argc--; argv++;
 880         /* hard stuff now ; we can get things like:
 881          * --minidump <pid>                     1 arg
 882          * --minidump <pid> <evt>               2 args
 883          * --minidump <file> <pid>              2 args
 884          * --minidump <file> <pid> <evt>        3 args
 885          */
 886         switch (argc)
 887         {
 888         case 1:
 889             ds = dbg_active_attach(argc, argv);
 890             break;
 891         case 2:
 892             if ((ds = dbg_active_attach(argc, argv)) != start_ok)
 893             {
 894                 file = argv[0];
 895                 ds = dbg_active_attach(argc - 1, argv + 1);
 896             }
 897             break;
 898         case 3:
 899             file = argv[0];
 900             ds = dbg_active_attach(argc - 1, argv + 1);
 901             break;
 902         default:
 903             return start_error_parse;
 904         }
 905         if (ds != start_ok) return ds;
 906         memcpy(tmp, "minidump \"", 10);
 907         if (!file)
 908         {
 909             char        path[MAX_PATH];
 910
 911             GetTempPath(sizeof(path), path);
 912             GetTempFileName(path, "WD", 0, tmp + 10);
 913         }
 914         else strcpy(tmp + 10, file);
 915         strcat(tmp, "\"");
 916         if (!file)
 917         {
 918             /* FIXME: should generate unix name as well */
 919             dbg_printf("Capturing program state in %s\n", tmp + 9);
 920         }
 921         hFile = parser_generate_command_file(tmp, NULL);
 922     }
 923     else return start_error_parse;
 924     if (hFile == INVALID_HANDLE_VALUE) return start_error_parse;
 925
 926     dbg_interactiveP = TRUE;
 927     parser_handle(hFile);
 928
 929     return start_ok;
 930 }
 931
 932 static BOOL tgt_process_active_close_process(struct dbg_process* pcs, BOOL kill)
 933 {
 934     if (pcs == dbg_curr_process)
 935     {
 936         /* remove all set breakpoints in debuggee code */
 937         break_set_xpoints(FALSE);
 938         /* needed for single stepping (ugly).
 939          * should this be handled inside the server ???
 940          */
 941         be_cpu->single_step(&dbg_context, FALSE);
 942         if (dbg_curr_thread->in_exception)
 943         {
 944             SetThreadContext(dbg_curr_thread->handle, &dbg_context);
 945             ContinueDebugEvent(dbg_curr_pid, dbg_curr_tid, DBG_CONTINUE);
 946         }
 947         if (!kill && !DebugActiveProcessStop(dbg_curr_pid)) return FALSE;
 948     }
 949     SymCleanup(pcs->handle);
 950     dbg_del_process(pcs);
 951
 952     return TRUE;
 953 }
 954
 955 static struct be_process_io be_process_active_io =
 956 {
 957     tgt_process_active_close_process,
 958     ReadProcessMemory,
 959     WriteProcessMemory,
 960 };