/* -*- tab-width: 8; c-basic-offset: 4 -*- */ /* Wine internal debugger * Interface to Windows debugger API * Copyright 2000 Eric Pouech * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include #include #include #include #include "debugger.h" #include "wincon.h" #include "winreg.h" #include "wingdi.h" #include "winuser.h" #include "winternl.h" #include "excpt.h" #include "wine/library.h" #include "winnls.h" DBG_PROCESS* DEBUG_CurrProcess = NULL; DBG_THREAD* DEBUG_CurrThread = NULL; DWORD DEBUG_CurrTid; DWORD DEBUG_CurrPid; CONTEXT DEBUG_context; BOOL DEBUG_InteractiveP = FALSE; static BOOL DEBUG_InException = FALSE; int curr_frame = 0; static char* DEBUG_LastCmdLine = NULL; static DBG_PROCESS* DEBUG_ProcessList = NULL; static enum {none_mode = 0, winedbg_mode, automatic_mode, gdb_mode} local_mode; DBG_INTVAR DEBUG_IntVars[DBG_IV_LAST]; void DEBUG_OutputA(int chn, const char* buffer, int len) { if (DBG_IVAR(ConChannelMask) & chn) WriteFile(GetStdHandle(STD_OUTPUT_HANDLE), buffer, len, NULL, NULL); if (DBG_IVAR(StdChannelMask) & chn) fwrite(buffer, len, 1, stderr); } void DEBUG_OutputW(int chn, const WCHAR* buffer, int len) { char* ansi = NULL; int newlen; /* do a serious Unicode to ANSI conversion FIXME: should CP_ACP be GetConsoleCP()? */ newlen = WideCharToMultiByte(CP_ACP, 0, buffer, len, NULL, 0, NULL, NULL); if(newlen) { ansi = (char*)DBG_alloc(newlen); if(ansi) { WideCharToMultiByte(CP_ACP, 0, buffer, len, ansi, newlen, NULL, NULL); } } /* fall back to a simple Unicode to ANSI conversion in case WC2MB failed */ if(!ansi) { ansi = DBG_alloc(len); if(ansi) { int i; for(i = 0; i < len; i++) { ansi[i] = (char)buffer[i]; } newlen = len; } /* else we are having REALLY bad luck today */ } if(ansi) { DEBUG_OutputA(chn, ansi, newlen); DBG_free(ansi); } } int DEBUG_Printf(int chn, const char* format, ...) { static char buf[4*1024]; va_list valist; int len; va_start(valist, format); len = vsnprintf(buf, sizeof(buf), format, valist); va_end(valist); if (len <= -1 || len >= sizeof(buf)) { len = sizeof(buf) - 1; buf[len] = 0; buf[len - 1] = buf[len - 2] = buf[len - 3] = '.'; } DEBUG_OutputA(chn, buf, len); return len; } static BOOL DEBUG_IntVarsRW(int read) { HKEY hkey; DWORD type = REG_DWORD; DWORD val; DWORD count = sizeof(val); int i; DBG_INTVAR* div = DEBUG_IntVars; if (read) { /* initializes internal vars table */ #define INTERNAL_VAR(_var,_val,_ref,_typ) \ div->val = _val; div->name = #_var; div->pval = _ref; \ div->type = DEBUG_GetBasicType(_typ); div++; #include "intvar.h" #undef INTERNAL_VAR } if (RegCreateKeyA(HKEY_CURRENT_USER, "Software\\Wine\\WineDbg", &hkey)) { /* since the IVars are not yet setup, DEBUG_Printf doesn't work, * so don't use it */ fprintf(stderr, "Cannot create WineDbg key in registry\n"); return FALSE; } for (i = 0; i < DBG_IV_LAST; i++) { if (read) { if (!DEBUG_IntVars[i].pval) { if (!RegQueryValueEx(hkey, DEBUG_IntVars[i].name, 0, &type, (LPSTR)&val, &count)) DEBUG_IntVars[i].val = val; DEBUG_IntVars[i].pval = &DEBUG_IntVars[i].val; } else { *DEBUG_IntVars[i].pval = 0; } } else { /* FIXME: type should be infered from basic type -if any- of intvar */ if (DEBUG_IntVars[i].pval == &DEBUG_IntVars[i].val) RegSetValueEx(hkey, DEBUG_IntVars[i].name, 0, type, (LPCVOID)DEBUG_IntVars[i].pval, count); } } RegCloseKey(hkey); return TRUE; } DBG_INTVAR* DEBUG_GetIntVar(const char* name) { int i; for (i = 0; i < DBG_IV_LAST; i++) { if (!strcmp(DEBUG_IntVars[i].name, name)) return &DEBUG_IntVars[i]; } return NULL; } DBG_PROCESS* DEBUG_GetProcess(DWORD pid) { DBG_PROCESS* p; for (p = DEBUG_ProcessList; p; p = p->next) if (p->pid == pid) break; return p; } DBG_PROCESS* DEBUG_AddProcess(DWORD pid, HANDLE h, const char* imageName) { DBG_PROCESS* p; if ((p = DEBUG_GetProcess(pid))) { if (p->handle != 0) { DEBUG_Printf(DBG_CHN_ERR, "Process (%lu) is already defined\n", pid); } else { p->handle = h; p->imageName = imageName ? DBG_strdup(imageName) : NULL; } return p; } if (!(p = DBG_alloc(sizeof(DBG_PROCESS)))) return NULL; p->handle = h; p->pid = pid; p->imageName = imageName ? DBG_strdup(imageName) : NULL; p->threads = NULL; p->num_threads = 0; p->continue_on_first_exception = FALSE; p->modules = NULL; p->num_modules = 0; p->next_index = 0; p->dbg_hdr_addr = 0; p->delayed_bp = NULL; p->num_delayed_bp = 0; p->next = DEBUG_ProcessList; p->prev = NULL; if (DEBUG_ProcessList) DEBUG_ProcessList->prev = p; DEBUG_ProcessList = p; return p; } void DEBUG_DelProcess(DBG_PROCESS* p) { int i; while (p->threads) DEBUG_DelThread(p->threads); for (i = 0; i < p->num_delayed_bp; i++) if (p->delayed_bp[i].is_symbol) DBG_free(p->delayed_bp[i].u.symbol.name); DBG_free(p->delayed_bp); if (p->prev) p->prev->next = p->next; if (p->next) p->next->prev = p->prev; if (p == DEBUG_ProcessList) DEBUG_ProcessList = p->next; if (p == DEBUG_CurrProcess) DEBUG_CurrProcess = NULL; DBG_free((char*)p->imageName); DBG_free(p); } static void DEBUG_InitCurrProcess(void) { } BOOL DEBUG_ProcessGetString(char* buffer, int size, HANDLE hp, LPSTR addr) { DWORD sz; *(WCHAR*)buffer = 0; return (addr && ReadProcessMemory(hp, addr, buffer, size, &sz)); } BOOL DEBUG_ProcessGetStringIndirect(char* buffer, int size, HANDLE hp, LPVOID addr) { LPVOID ad; DWORD sz; if ( addr && ReadProcessMemory(hp, addr, &ad, sizeof(ad), &sz) && sz == sizeof(ad) && ad && ReadProcessMemory(hp, ad, buffer, size, &sz)) return TRUE; *(WCHAR*)buffer = 0; return FALSE; } DBG_THREAD* DEBUG_GetThread(DBG_PROCESS* p, DWORD tid) { DBG_THREAD* t; if (!p) return NULL; for (t = p->threads; t; t = t->next) if (t->tid == tid) break; return t; } DBG_THREAD* DEBUG_AddThread(DBG_PROCESS* p, DWORD tid, HANDLE h, LPVOID start, LPVOID teb) { DBG_THREAD* t = DBG_alloc(sizeof(DBG_THREAD)); if (!t) return NULL; t->handle = h; t->tid = tid; t->start = start; t->teb = teb; t->process = p; t->wait_for_first_exception = 0; t->exec_mode = EXEC_CONT; t->exec_count = 0; snprintf(t->name, sizeof(t->name), "%08lx", tid); p->num_threads++; t->next = p->threads; t->prev = NULL; if (p->threads) p->threads->prev = t; p->threads = t; return t; } static void DEBUG_InitCurrThread(void) { if (DEBUG_CurrThread->start) { if (DEBUG_CurrThread->process->num_threads == 1 || DBG_IVAR(BreakAllThreadsStartup)) { DBG_VALUE value; DEBUG_SetBreakpoints(FALSE); value.type = NULL; value.cookie = DV_TARGET; value.addr.seg = 0; value.addr.off = (DWORD)DEBUG_CurrThread->start; DEBUG_AddBreakpointFromValue(&value); DEBUG_SetBreakpoints(TRUE); } } else { DEBUG_CurrThread->wait_for_first_exception = 1; } } void DEBUG_DelThread(DBG_THREAD* t) { if (t->prev) t->prev->next = t->next; if (t->next) t->next->prev = t->prev; if (t == t->process->threads) t->process->threads = t->next; t->process->num_threads--; if (t == DEBUG_CurrThread) DEBUG_CurrThread = NULL; DBG_free(t); } static BOOL DEBUG_HandleDebugEvent(DEBUG_EVENT* de); /****************************************************************** * DEBUG_Attach * * Sets the debuggee to * cofe instructs winedbg what to do when first exception is received * (break=FALSE, continue=TRUE) * wfe is set to TRUE if DEBUG_Attach should also proceed with all debug events * until the first exception is received (aka: attach to an already running process) */ BOOL DEBUG_Attach(DWORD pid, BOOL cofe, BOOL wfe) { DEBUG_EVENT de; if (!(DEBUG_CurrProcess = DEBUG_AddProcess(pid, 0, NULL))) return FALSE; if (!DebugActiveProcess(pid)) { DEBUG_Printf(DBG_CHN_MESG, "Can't attach process %lx: error %ld\n", pid, GetLastError()); DEBUG_DelProcess(DEBUG_CurrProcess); return FALSE; } DEBUG_CurrProcess->continue_on_first_exception = cofe; if (wfe) /* shall we proceed all debug events until we get an exception ? */ { DEBUG_InteractiveP = FALSE; while (DEBUG_CurrProcess && WaitForDebugEvent(&de, INFINITE)) { if (DEBUG_HandleDebugEvent(&de)) break; } if (DEBUG_CurrProcess) DEBUG_InteractiveP = TRUE; } return TRUE; } BOOL DEBUG_Detach(void) { /* remove all set breakpoints in debuggee code */ DEBUG_SetBreakpoints(FALSE); /* needed for single stepping (ugly). * should this be handled inside the server ??? */ #ifdef __i386__ DEBUG_context.EFlags &= ~STEP_FLAG; #endif SetThreadContext(DEBUG_CurrThread->handle, &DEBUG_context); DebugActiveProcessStop(DEBUG_CurrProcess->pid); DEBUG_DelProcess(DEBUG_CurrProcess); /* FIXME: should zero out the symbol table too */ return TRUE; } static BOOL DEBUG_FetchContext(void) { DEBUG_context.ContextFlags = CONTEXT_CONTROL | CONTEXT_INTEGER #ifdef CONTEXT_SEGMENTS | CONTEXT_SEGMENTS #endif #ifdef CONTEXT_DEBUG_REGISTERS | CONTEXT_DEBUG_REGISTERS #endif ; if (!GetThreadContext(DEBUG_CurrThread->handle, &DEBUG_context)) { DEBUG_Printf(DBG_CHN_WARN, "Can't get thread's context\n"); return FALSE; } return TRUE; } static BOOL DEBUG_ExceptionProlog(BOOL is_debug, BOOL force, DWORD code) { DBG_ADDR addr; int newmode; DEBUG_InException = TRUE; DEBUG_GetCurrentAddress(&addr); DEBUG_SuspendExecution(); if (!is_debug) { if (!addr.seg) DEBUG_Printf(DBG_CHN_MESG, " in 32-bit code (0x%08lx)", addr.off); else switch(DEBUG_GetSelectorType(addr.seg)) { case MODE_32: DEBUG_Printf(DBG_CHN_MESG, " in 32-bit code (%04lx:%08lx)", addr.seg, addr.off); break; case MODE_16: DEBUG_Printf(DBG_CHN_MESG, " in 16-bit code (%04lx:%04lx)", addr.seg, addr.off); break; case MODE_VM86: DEBUG_Printf(DBG_CHN_MESG, " in vm86 code (%04lx:%04lx)", addr.seg, addr.off); break; case MODE_INVALID: DEBUG_Printf(DBG_CHN_MESG, " bad CS (%lx)", addr.seg); break; } DEBUG_Printf(DBG_CHN_MESG, ".\n"); } DEBUG_LoadEntryPoints("Loading new modules symbols:\n"); if (!force && is_debug && DEBUG_ShouldContinue(&addr, code, &DEBUG_CurrThread->exec_count)) return FALSE; if ((newmode = DEBUG_GetSelectorType(addr.seg)) == MODE_INVALID) newmode = MODE_32; if (newmode != DEBUG_CurrThread->dbg_mode) { static const char * const names[] = { "???", "16-bit", "32-bit", "vm86" }; DEBUG_Printf(DBG_CHN_MESG,"In %s mode.\n", names[newmode] ); DEBUG_CurrThread->dbg_mode = newmode; } DEBUG_DoDisplay(); if (is_debug || force) { /* * Do a quiet backtrace so that we have an idea of what the situation * is WRT the source files. */ DEBUG_BackTrace(DEBUG_CurrTid, FALSE); } else { /* This is a real crash, dump some info */ DEBUG_InfoRegisters(&DEBUG_context); DEBUG_InfoStack(); #ifdef __i386__ if (DEBUG_CurrThread->dbg_mode == MODE_16) { DEBUG_InfoSegments(DEBUG_context.SegDs >> 3, 1); if (DEBUG_context.SegEs != DEBUG_context.SegDs) DEBUG_InfoSegments(DEBUG_context.SegEs >> 3, 1); } DEBUG_InfoSegments(DEBUG_context.SegFs >> 3, 1); #endif DEBUG_BackTrace(DEBUG_CurrTid, TRUE); } if (!is_debug || (DEBUG_CurrThread->exec_mode == EXEC_STEPI_OVER) || (DEBUG_CurrThread->exec_mode == EXEC_STEPI_INSTR)) { struct list_id list; /* Show where we crashed */ curr_frame = 0; DEBUG_DisassembleInstruction(&addr); /* resets list internal arguments so we can look at source code when needed */ DEBUG_FindNearestSymbol(&addr, TRUE, NULL, 0, &list); if (list.sourcefile) DEBUG_List(&list, NULL, 0); } return TRUE; } static void DEBUG_ExceptionEpilog(void) { DEBUG_RestartExecution(DEBUG_CurrThread->exec_count); /* * This will have gotten absorbed into the breakpoint info * if it was used. Otherwise it would have been ignored. * In any case, we don't mess with it any more. */ if (DEBUG_CurrThread->exec_mode == EXEC_CONT) DEBUG_CurrThread->exec_count = 0; DEBUG_InException = FALSE; } static DWORD DEBUG_HandleException(EXCEPTION_RECORD *rec, BOOL first_chance, BOOL force) { BOOL is_debug = FALSE; THREADNAME_INFO *pThreadName; DBG_THREAD *pThread; assert(DEBUG_CurrThread); switch (rec->ExceptionCode) { case EXCEPTION_BREAKPOINT: case EXCEPTION_SINGLE_STEP: is_debug = TRUE; break; case EXCEPTION_NAME_THREAD: pThreadName = (THREADNAME_INFO*)(rec->ExceptionInformation); if (pThreadName->dwThreadID == -1) pThread = DEBUG_CurrThread; else pThread = DEBUG_GetThread(DEBUG_CurrProcess, pThreadName->dwThreadID); if (ReadProcessMemory(DEBUG_CurrThread->process->handle, pThreadName->szName, pThread->name, 9, NULL)) DEBUG_Printf (DBG_CHN_MESG, "Thread ID=0x%lx renamed using MS VC6 extension (name==\"%s\")\n", pThread->tid, pThread->name); return DBG_CONTINUE; } if (first_chance && !is_debug && !force && !DBG_IVAR(BreakOnFirstChance)) { /* pass exception to program except for debug exceptions */ return DBG_EXCEPTION_NOT_HANDLED; } if (!is_debug) { /* print some infos */ DEBUG_Printf(DBG_CHN_MESG, "%s: ", first_chance ? "First chance exception" : "Unhandled exception"); switch (rec->ExceptionCode) { case EXCEPTION_INT_DIVIDE_BY_ZERO: DEBUG_Printf(DBG_CHN_MESG, "divide by zero"); break; case EXCEPTION_INT_OVERFLOW: DEBUG_Printf(DBG_CHN_MESG, "overflow"); break; case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: DEBUG_Printf(DBG_CHN_MESG, "array bounds "); break; case EXCEPTION_ILLEGAL_INSTRUCTION: DEBUG_Printf(DBG_CHN_MESG, "illegal instruction"); break; case EXCEPTION_STACK_OVERFLOW: DEBUG_Printf(DBG_CHN_MESG, "stack overflow"); break; case EXCEPTION_PRIV_INSTRUCTION: DEBUG_Printf(DBG_CHN_MESG, "privileged instruction"); break; case EXCEPTION_ACCESS_VIOLATION: if (rec->NumberParameters == 2) DEBUG_Printf(DBG_CHN_MESG, "page fault on %s access to 0x%08lx", rec->ExceptionInformation[0] ? "write" : "read", rec->ExceptionInformation[1]); else DEBUG_Printf(DBG_CHN_MESG, "page fault"); break; case EXCEPTION_DATATYPE_MISALIGNMENT: DEBUG_Printf(DBG_CHN_MESG, "Alignment"); break; case DBG_CONTROL_C: DEBUG_Printf(DBG_CHN_MESG, "^C"); break; case CONTROL_C_EXIT: DEBUG_Printf(DBG_CHN_MESG, "^C"); break; case STATUS_POSSIBLE_DEADLOCK: { DBG_ADDR addr; addr.seg = 0; addr.off = rec->ExceptionInformation[0]; DEBUG_Printf(DBG_CHN_MESG, "wait failed on critical section "); DEBUG_PrintAddress(&addr, DEBUG_CurrThread->dbg_mode, FALSE); } if (!DBG_IVAR(BreakOnCritSectTimeOut)) { DEBUG_Printf(DBG_CHN_MESG, "\n"); return DBG_EXCEPTION_NOT_HANDLED; } break; case EXCEPTION_WINE_STUB: { char dll[32], name[64]; DEBUG_ProcessGetString( dll, sizeof(dll), DEBUG_CurrThread->process->handle, (char *)rec->ExceptionInformation[0] ); DEBUG_ProcessGetString( name, sizeof(name), DEBUG_CurrThread->process->handle, (char *)rec->ExceptionInformation[1] ); DEBUG_Printf(DBG_CHN_MESG, "unimplemented function %s.%s called", dll, name ); } break; case EXCEPTION_WINE_ASSERTION: DEBUG_Printf(DBG_CHN_MESG, "assertion failed"); break; case EXCEPTION_VM86_INTx: DEBUG_Printf(DBG_CHN_MESG, "interrupt %02lx in vm86 mode", rec->ExceptionInformation[0]); break; case EXCEPTION_VM86_STI: DEBUG_Printf(DBG_CHN_MESG, "sti in vm86 mode"); break; case EXCEPTION_VM86_PICRETURN: DEBUG_Printf(DBG_CHN_MESG, "PIC return in vm86 mode"); break; case EXCEPTION_FLT_DENORMAL_OPERAND: DEBUG_Printf(DBG_CHN_MESG, "denormal float operand"); break; case EXCEPTION_FLT_DIVIDE_BY_ZERO: DEBUG_Printf(DBG_CHN_MESG, "divide by zero"); break; case EXCEPTION_FLT_INEXACT_RESULT: DEBUG_Printf(DBG_CHN_MESG, "inexact float result"); break; case EXCEPTION_FLT_INVALID_OPERATION: DEBUG_Printf(DBG_CHN_MESG, "invalid float operation"); break; case EXCEPTION_FLT_OVERFLOW: DEBUG_Printf(DBG_CHN_MESG, "floating pointer overflow"); break; case EXCEPTION_FLT_UNDERFLOW: DEBUG_Printf(DBG_CHN_MESG, "floating pointer underflow"); break; case EXCEPTION_FLT_STACK_CHECK: DEBUG_Printf(DBG_CHN_MESG, "floating point stack check"); break; default: DEBUG_Printf(DBG_CHN_MESG, "%08lx", rec->ExceptionCode); break; } } if (local_mode == automatic_mode) { DEBUG_ExceptionProlog(is_debug, FALSE, rec->ExceptionCode); DEBUG_ExceptionEpilog(); return 0; /* terminate execution */ } if (DEBUG_ExceptionProlog(is_debug, force, rec->ExceptionCode)) { DEBUG_InteractiveP = TRUE; return 0; } DEBUG_ExceptionEpilog(); return DBG_CONTINUE; } static BOOL DEBUG_HandleDebugEvent(DEBUG_EVENT* de) { char buffer[256]; DWORD cont = DBG_CONTINUE; DEBUG_CurrPid = de->dwProcessId; DEBUG_CurrTid = de->dwThreadId; if ((DEBUG_CurrProcess = DEBUG_GetProcess(de->dwProcessId)) != NULL) DEBUG_CurrThread = DEBUG_GetThread(DEBUG_CurrProcess, de->dwThreadId); else DEBUG_CurrThread = NULL; switch (de->dwDebugEventCode) { case EXCEPTION_DEBUG_EVENT: if (!DEBUG_CurrThread) { DEBUG_Printf(DBG_CHN_ERR, "%08lx:%08lx: not a registered process or thread (perhaps a 16 bit one ?)\n", de->dwProcessId, de->dwThreadId); break; } DEBUG_Printf(DBG_CHN_TRACE, "%08lx:%08lx: exception code=%08lx\n", de->dwProcessId, de->dwThreadId, de->u.Exception.ExceptionRecord.ExceptionCode); if (DEBUG_CurrProcess->continue_on_first_exception) { DEBUG_CurrProcess->continue_on_first_exception = FALSE; if (!DBG_IVAR(BreakOnAttach)) break; } if (DEBUG_FetchContext()) { cont = DEBUG_HandleException(&de->u.Exception.ExceptionRecord, de->u.Exception.dwFirstChance, DEBUG_CurrThread->wait_for_first_exception); if (cont && DEBUG_CurrThread) { DEBUG_CurrThread->wait_for_first_exception = 0; SetThreadContext(DEBUG_CurrThread->handle, &DEBUG_context); } } break; case CREATE_THREAD_DEBUG_EVENT: DEBUG_Printf(DBG_CHN_TRACE, "%08lx:%08lx: create thread D @%08lx\n", de->dwProcessId, de->dwThreadId, (unsigned long)(LPVOID)de->u.CreateThread.lpStartAddress); if (DEBUG_CurrProcess == NULL) { DEBUG_Printf(DBG_CHN_ERR, "Unknown process\n"); break; } if (DEBUG_GetThread(DEBUG_CurrProcess, de->dwThreadId) != NULL) { DEBUG_Printf(DBG_CHN_TRACE, "Thread already listed, skipping\n"); break; } DEBUG_CurrThread = DEBUG_AddThread(DEBUG_CurrProcess, de->dwThreadId, de->u.CreateThread.hThread, de->u.CreateThread.lpStartAddress, de->u.CreateThread.lpThreadLocalBase); if (!DEBUG_CurrThread) { DEBUG_Printf(DBG_CHN_ERR, "Couldn't create thread\n"); break; } DEBUG_InitCurrThread(); break; case CREATE_PROCESS_DEBUG_EVENT: DEBUG_ProcessGetStringIndirect(buffer, sizeof(buffer), de->u.CreateProcessInfo.hProcess, de->u.CreateProcessInfo.lpImageName); /* FIXME unicode ? de->u.CreateProcessInfo.fUnicode */ DEBUG_Printf(DBG_CHN_TRACE, "%08lx:%08lx: create process '%s'/%p @%08lx (%ld<%ld>)\n", de->dwProcessId, de->dwThreadId, buffer, de->u.CreateProcessInfo.lpImageName, (unsigned long)(LPVOID)de->u.CreateProcessInfo.lpStartAddress, de->u.CreateProcessInfo.dwDebugInfoFileOffset, de->u.CreateProcessInfo.nDebugInfoSize); DEBUG_CurrProcess = DEBUG_AddProcess(de->dwProcessId, de->u.CreateProcessInfo.hProcess, buffer[0] ? buffer : ""); if (DEBUG_CurrProcess == NULL) { DEBUG_Printf(DBG_CHN_ERR, "Couldn't create process\n"); break; } DEBUG_Printf(DBG_CHN_TRACE, "%08lx:%08lx: create thread I @%08lx\n", de->dwProcessId, de->dwThreadId, (unsigned long)(LPVOID)de->u.CreateProcessInfo.lpStartAddress); DEBUG_CurrThread = DEBUG_AddThread(DEBUG_CurrProcess, de->dwThreadId, de->u.CreateProcessInfo.hThread, de->u.CreateProcessInfo.lpStartAddress, de->u.CreateProcessInfo.lpThreadLocalBase); if (!DEBUG_CurrThread) { DEBUG_Printf(DBG_CHN_ERR, "Couldn't create thread\n"); break; } DEBUG_InitCurrProcess(); DEBUG_InitCurrThread(); /* module is either PE, NE or ELF module (for WineLib), but all * are loaded with wine, so load its symbols, then the main module */ do { char* ptr = getenv("WINELOADER"); if (!ptr || DEBUG_ReadExecutableDbgInfo( ptr ) == DIL_ERROR) DEBUG_ReadExecutableDbgInfo( "wine" ); } while (0); DEBUG_LoadModule32(DEBUG_CurrProcess->imageName, de->u.CreateProcessInfo.hFile, de->u.CreateProcessInfo.lpBaseOfImage); break; case EXIT_THREAD_DEBUG_EVENT: DEBUG_Printf(DBG_CHN_TRACE, "%08lx:%08lx: exit thread (%ld)\n", de->dwProcessId, de->dwThreadId, de->u.ExitThread.dwExitCode); if (DEBUG_CurrThread == NULL) { DEBUG_Printf(DBG_CHN_ERR, "Unknown thread\n"); break; } /* FIXME: remove break point set on thread startup */ DEBUG_DelThread(DEBUG_CurrThread); break; case EXIT_PROCESS_DEBUG_EVENT: DEBUG_Printf(DBG_CHN_TRACE, "%08lx:%08lx: exit process (%ld)\n", de->dwProcessId, de->dwThreadId, de->u.ExitProcess.dwExitCode); if (DEBUG_CurrProcess == NULL) { DEBUG_Printf(DBG_CHN_ERR, "Unknown process\n"); break; } /* just in case */ DEBUG_SetBreakpoints(FALSE); /* kill last thread */ DEBUG_DelThread(DEBUG_CurrProcess->threads); DEBUG_DelProcess(DEBUG_CurrProcess); DEBUG_Printf(DBG_CHN_MESG, "Process of pid=%08lx has terminated\n", DEBUG_CurrPid); break; case LOAD_DLL_DEBUG_EVENT: if (DEBUG_CurrThread == NULL) { DEBUG_Printf(DBG_CHN_ERR, "Unknown thread\n"); break; } DEBUG_ProcessGetStringIndirect(buffer, sizeof(buffer), DEBUG_CurrThread->process->handle, de->u.LoadDll.lpImageName); /* FIXME unicode: de->u.LoadDll.fUnicode */ DEBUG_Printf(DBG_CHN_TRACE, "%08lx:%08lx: loads DLL %s @%08lx (%ld<%ld>)\n", de->dwProcessId, de->dwThreadId, buffer, (unsigned long)de->u.LoadDll.lpBaseOfDll, de->u.LoadDll.dwDebugInfoFileOffset, de->u.LoadDll.nDebugInfoSize); _strupr(buffer); DEBUG_LoadModule32(buffer, de->u.LoadDll.hFile, de->u.LoadDll.lpBaseOfDll); DEBUG_CheckDelayedBP(); if (DBG_IVAR(BreakOnDllLoad)) { DEBUG_Printf(DBG_CHN_MESG, "Stopping on DLL %s loading at %08lx\n", buffer, (unsigned long)de->u.LoadDll.lpBaseOfDll); if (DEBUG_FetchContext()) cont = 0; } break; case UNLOAD_DLL_DEBUG_EVENT: DEBUG_Printf(DBG_CHN_TRACE, "%08lx:%08lx: unload DLL @%08lx\n", de->dwProcessId, de->dwThreadId, (unsigned long)de->u.UnloadDll.lpBaseOfDll); break; case OUTPUT_DEBUG_STRING_EVENT: if (DEBUG_CurrThread == NULL) { DEBUG_Printf(DBG_CHN_ERR, "Unknown thread\n"); break; } DEBUG_ProcessGetString(buffer, sizeof(buffer), DEBUG_CurrThread->process->handle, de->u.DebugString.lpDebugStringData); /* FIXME unicode de->u.DebugString.fUnicode ? */ DEBUG_Printf(DBG_CHN_TRACE, "%08lx:%08lx: output debug string (%s)\n", de->dwProcessId, de->dwThreadId, buffer); break; case RIP_EVENT: DEBUG_Printf(DBG_CHN_TRACE, "%08lx:%08lx: rip error=%ld type=%ld\n", de->dwProcessId, de->dwThreadId, de->u.RipInfo.dwError, de->u.RipInfo.dwType); break; default: DEBUG_Printf(DBG_CHN_TRACE, "%08lx:%08lx: unknown event (%ld)\n", de->dwProcessId, de->dwThreadId, de->dwDebugEventCode); } if (!cont) return TRUE; /* stop execution */ ContinueDebugEvent(de->dwProcessId, de->dwThreadId, cont); return FALSE; /* continue execution */ } static void DEBUG_ResumeDebuggee(DWORD cont) { if (DEBUG_InException) { DEBUG_ExceptionEpilog(); #if 1 DEBUG_Printf(DBG_CHN_TRACE, "Exiting debugger PC=%lx EFL=%08lx mode=%d count=%d\n", #ifdef __i386__ DEBUG_context.Eip, DEBUG_context.EFlags, #else 0L, 0L, #endif DEBUG_CurrThread->exec_mode, DEBUG_CurrThread->exec_count); #endif if (DEBUG_CurrThread) { if (!SetThreadContext(DEBUG_CurrThread->handle, &DEBUG_context)) DEBUG_Printf(DBG_CHN_MESG, "Cannot set ctx on %lu\n", DEBUG_CurrTid); DEBUG_CurrThread->wait_for_first_exception = 0; } } DEBUG_InteractiveP = FALSE; if (!ContinueDebugEvent(DEBUG_CurrPid, DEBUG_CurrTid, cont)) DEBUG_Printf(DBG_CHN_MESG, "Cannot continue on %lu (%lu)\n", DEBUG_CurrTid, cont); } void DEBUG_WaitNextException(DWORD cont, int count, int mode) { DEBUG_EVENT de; if (cont == DBG_CONTINUE) { DEBUG_CurrThread->exec_count = count; DEBUG_CurrThread->exec_mode = mode; } DEBUG_ResumeDebuggee(cont); while (DEBUG_CurrProcess && WaitForDebugEvent(&de, INFINITE)) { if (DEBUG_HandleDebugEvent(&de)) break; } if (!DEBUG_CurrProcess) return; DEBUG_InteractiveP = TRUE; #if 1 DEBUG_Printf(DBG_CHN_TRACE, "Entering debugger PC=%lx EFL=%08lx mode=%d count=%d\n", #ifdef __i386__ DEBUG_context.Eip, DEBUG_context.EFlags, #else 0L, 0L, #endif DEBUG_CurrThread->exec_mode, DEBUG_CurrThread->exec_count); #endif } static DWORD DEBUG_MainLoop(void) { DEBUG_EVENT de; DEBUG_Printf(DBG_CHN_MESG, "WineDbg starting on pid %lx\n", DEBUG_CurrPid); /* wait for first exception */ while (WaitForDebugEvent(&de, INFINITE)) { if (DEBUG_HandleDebugEvent(&de)) break; } if (local_mode == automatic_mode) { /* print some extra information */ DEBUG_Printf(DBG_CHN_MESG, "Modules:\n"); DEBUG_WalkModules(); DEBUG_Printf(DBG_CHN_MESG, "Threads:\n"); DEBUG_WalkThreads(); } else { DEBUG_InteractiveP = TRUE; DEBUG_Parser(NULL); } DEBUG_Printf(DBG_CHN_MESG, "WineDbg terminated on pid %lx\n", DEBUG_CurrPid); return 0; } static BOOL DEBUG_Start(LPSTR cmdLine) { PROCESS_INFORMATION info; STARTUPINFOA startup; memset(&startup, 0, sizeof(startup)); startup.cb = sizeof(startup); startup.dwFlags = STARTF_USESHOWWINDOW; startup.wShowWindow = SW_SHOWNORMAL; /* FIXME: shouldn't need the CREATE_NEW_CONSOLE, but as usual CUI:s need it * while GUI:s don't */ if (!CreateProcess(NULL, cmdLine, NULL, NULL, FALSE, DEBUG_PROCESS|DEBUG_ONLY_THIS_PROCESS|CREATE_NEW_CONSOLE, NULL, NULL, &startup, &info)) { DEBUG_Printf(DBG_CHN_MESG, "Couldn't start process '%s'\n", cmdLine); return FALSE; } DEBUG_CurrPid = info.dwProcessId; if (!(DEBUG_CurrProcess = DEBUG_AddProcess(DEBUG_CurrPid, 0, NULL))) return FALSE; return TRUE; } void DEBUG_Run(const char* args) { DBG_MODULE* wmod = DEBUG_GetProcessMainModule(DEBUG_CurrProcess); const char* pgm = (wmod) ? wmod->module_name : "none"; if (args) { DEBUG_Printf(DBG_CHN_MESG, "Run (%s) with '%s'\n", pgm, args); } else { if (!DEBUG_LastCmdLine) { DEBUG_Printf(DBG_CHN_MESG, "Cannot find previously used command line.\n"); return; } DEBUG_Start(DEBUG_LastCmdLine); } } BOOL DEBUG_InterruptDebuggee(void) { DEBUG_Printf(DBG_CHN_MESG, "Ctrl-C: stopping debuggee\n"); /* FIXME: since we likely have a single process, signal the first process * in list */ return DEBUG_ProcessList && DebugBreakProcess(DEBUG_ProcessList->handle); } static BOOL WINAPI DEBUG_CtrlCHandler(DWORD dwCtrlType) { if (dwCtrlType == CTRL_C_EVENT) { return DEBUG_InterruptDebuggee(); } return FALSE; } static void DEBUG_InitConsole(void) { /* set our control-C handler */ SetConsoleCtrlHandler(DEBUG_CtrlCHandler, TRUE); /* set our own title */ SetConsoleTitle("Wine Debugger"); } static int DEBUG_Usage(void) { DEBUG_Printf(DBG_CHN_MESG, "Usage: winedbg [--debugmsg dbgoptions] [--auto] [--gdb] cmdline\n" ); return 1; } int main(int argc, char** argv) { DWORD retv = 0; unsigned gdb_flags = 0; /* Initialize the type handling stuff. */ DEBUG_InitTypes(); DEBUG_InitCVDataTypes(); /* Initialize internal vars (types must have been initialized before) */ if (!DEBUG_IntVarsRW(TRUE)) return -1; /* parse options */ while (argc > 1 && argv[1][0] == '-') { if (!strcmp( argv[1], "--auto" )) { if (local_mode != none_mode) return DEBUG_Usage(); local_mode = automatic_mode; /* force some internal variables */ DBG_IVAR(BreakOnDllLoad) = 0; DBG_IVAR(ConChannelMask) = 0; DBG_IVAR(StdChannelMask) = DBG_CHN_MESG; argc--; argv++; continue; } if (!strcmp( argv[1], "--gdb" )) { if (local_mode != none_mode) return DEBUG_Usage(); local_mode = gdb_mode; argc--; argv++; continue; } if (strcmp( argv[1], "--no-start") == 0 && local_mode == gdb_mode) { gdb_flags |= 1; argc--; argv++; /* as we don't use argv[0] */ continue; } if (strcmp(argv[1], "--with-xterm") == 0 && local_mode == gdb_mode) { gdb_flags |= 2; argc--; argv++; /* as we don't use argv[0] */ continue; } if (!strcmp( argv[1], "--debugmsg" ) && argv[2]) { wine_dbg_parse_options( argv[2] ); argc -= 2; argv += 2; continue; } return DEBUG_Usage(); } if (local_mode == none_mode) local_mode = winedbg_mode; /* try the form pid */ if (DEBUG_CurrPid == 0 && argc == 2) { char* ptr; DEBUG_CurrPid = strtol(argv[1], &ptr, 10); if (DEBUG_CurrPid == 0 || ptr == NULL || !DEBUG_Attach(DEBUG_CurrPid, local_mode != gdb_mode, FALSE)) DEBUG_CurrPid = 0; } /* try the form pid evt (Win32 JIT debugger) */ if (DEBUG_CurrPid == 0 && argc == 3) { HANDLE hEvent; DWORD pid; char* ptr; if ((pid = strtol(argv[1], &ptr, 10)) != 0 && ptr != NULL && (hEvent = (HANDLE)strtol(argv[2], &ptr, 10)) != 0 && ptr != NULL) { if (!DEBUG_Attach(pid, TRUE, FALSE)) { /* don't care about result */ SetEvent(hEvent); goto leave; } if (!SetEvent(hEvent)) { DEBUG_Printf(DBG_CHN_ERR, "Invalid event handle: %p\n", hEvent); goto leave; } CloseHandle(hEvent); DEBUG_CurrPid = pid; } } if (DEBUG_CurrPid == 0 && argc > 1) { int i, len; LPSTR cmdLine; if (!(cmdLine = DBG_alloc(len = 1))) goto oom_leave; cmdLine[0] = '\0'; for (i = 1; i < argc; i++) { len += strlen(argv[i]) + 1; if (!(cmdLine = DBG_realloc(cmdLine, len))) goto oom_leave; strcat(cmdLine, argv[i]); cmdLine[len - 2] = ' '; cmdLine[len - 1] = '\0'; } if (!DEBUG_Start(cmdLine)) { DEBUG_Printf(DBG_CHN_MESG, "Couldn't start process '%s'\n", cmdLine); goto leave; } DBG_free(DEBUG_LastCmdLine); DEBUG_LastCmdLine = cmdLine; } /* don't save local vars in gdb mode */ if (local_mode == gdb_mode && DEBUG_CurrPid) return DEBUG_GdbRemote(gdb_flags); DEBUG_InitConsole(); retv = DEBUG_MainLoop(); /* don't save modified variables in auto mode */ if (local_mode != automatic_mode) DEBUG_IntVarsRW(FALSE); leave: return retv; oom_leave: DEBUG_Printf(DBG_CHN_MESG, "Out of memory\n"); goto leave; }