| /* Wine internal debugger |
| * Interface to Windows debugger API |
| * Copyright 2000-2004 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 "config.h" |
| #include "wine/port.h" |
| |
| #include <stdlib.h> |
| #include <stdio.h> |
| #include <string.h> |
| #include "debugger.h" |
| |
| #include "winternl.h" |
| #include "wine/exception.h" |
| #include "wine/library.h" |
| |
| #include "wine/debug.h" |
| |
| /* TODO list: |
| * |
| * - minidump |
| * + allow winedbg in automatic mode to create a minidump (or add another option |
| * for that) |
| * + set a mode where winedbg would start (postmortem debugging) from a minidump |
| * - CPU adherence |
| * + we always assume the stack grows has an i386 (ie downwards) |
| * - UI |
| * + enable back the limited output (depth of structure printing and number of |
| * lines) |
| * + make the output as close as possible to what gdb does |
| * - symbol management: |
| * + symbol table loading is broken |
| * + in symbol_get_lvalue, we don't do any scoping (as C does) between local and |
| * global vars (we may need this to force some display for example). A solution |
| * would be always to return arrays with: local vars, global vars, thunks |
| * - type management: |
| * + some bits of internal types are missing (like type casts and the address |
| * operator) |
| * + the type for an enum's value is always inferred as int (winedbg & dbghelp) |
| * + most of the code implies that sizeof(void*) = sizeof(int) |
| * + all computations should be made on long long |
| * o expr computations are in int:s |
| * o bitfield size is on a 4-bytes |
| * - execution: |
| * + set a better fix for gdb (proxy mode) than the step-mode hack |
| * + implement function call in debuggee |
| * + trampoline management is broken when getting 16 <=> 32 thunk destination |
| * address |
| * + thunking of delayed imports doesn't work as expected (ie, when stepping, |
| * it currently stops at first insn with line number during the library |
| * loading). We should identify this (__wine_delay_import) and set a |
| * breakpoint instead of single stepping the library loading. |
| * + it's wrong to copy thread->step_over_bp into process->bp[0] (when |
| * we have a multi-thread debuggee). complete fix must include storing all |
| * thread's step-over bp in process-wide bp array, and not to handle bp |
| * when we have the wrong thread running into that bp |
| */ |
| |
| WINE_DEFAULT_DEBUG_CHANNEL(winedbg); |
| |
| struct dbg_process* dbg_curr_process = NULL; |
| struct dbg_thread* dbg_curr_thread = NULL; |
| DWORD dbg_curr_tid; |
| DWORD dbg_curr_pid; |
| CONTEXT dbg_context; |
| int dbg_curr_frame = 0; |
| BOOL dbg_interactiveP = FALSE; |
| static unsigned dbg_in_exception = FALSE; |
| static char* dbg_last_cmd_line = NULL; |
| |
| static struct dbg_process* dbg_process_list = NULL; |
| static enum {none_mode = 0, winedbg_mode, automatic_mode, gdb_mode} dbg_action_mode; |
| |
| struct dbg_internal_var dbg_internal_vars[DBG_IV_LAST]; |
| const struct dbg_internal_var* dbg_context_vars; |
| static HANDLE dbg_houtput; |
| |
| void dbg_outputA(const char* buffer, int len) |
| { |
| DWORD w; |
| WriteFile(dbg_houtput, buffer, len, &w, NULL); |
| } |
| |
| void dbg_outputW(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) |
| { |
| if (!(ansi = HeapAlloc(GetProcessHeap(), 0, newlen))) return; |
| WideCharToMultiByte(CP_ACP, 0, buffer, len, ansi, newlen, NULL, NULL); |
| dbg_outputA(ansi, newlen); |
| HeapFree(GetProcessHeap(), 0, ansi); |
| } |
| } |
| |
| int dbg_printf(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] = '.'; |
| } |
| dbg_outputA(buf, len); |
| return len; |
| } |
| |
| static unsigned dbg_load_internal_vars(void) |
| { |
| HKEY hkey; |
| DWORD type = REG_DWORD; |
| DWORD val; |
| DWORD count = sizeof(val); |
| int i; |
| struct dbg_internal_var* div = dbg_internal_vars; |
| |
| /* initializes internal vars table */ |
| #define INTERNAL_VAR(_var,_val,_ref,_tid) \ |
| div->val = _val; div->name = #_var; div->pval = _ref; \ |
| div->typeid = _tid; div++; |
| #include "intvar.h" |
| #undef INTERNAL_VAR |
| |
| if (RegCreateKeyA(HKEY_CURRENT_USER, "Software\\Wine\\WineDbg", &hkey)) |
| { |
| WINE_ERR("Cannot create WineDbg key in registry\n"); |
| return FALSE; |
| } |
| |
| for (i = 0; i < DBG_IV_LAST; i++) |
| { |
| if (!dbg_internal_vars[i].pval) |
| { |
| if (!RegQueryValueEx(hkey, dbg_internal_vars[i].name, 0, |
| &type, (LPSTR)&val, &count)) |
| dbg_internal_vars[i].val = val; |
| dbg_internal_vars[i].pval = &dbg_internal_vars[i].val; |
| } |
| } |
| RegCloseKey(hkey); |
| /* set up the debug variables for the CPU context */ |
| dbg_context_vars = be_cpu->init_registers(&dbg_context); |
| return TRUE; |
| } |
| |
| static unsigned dbg_save_internal_vars(void) |
| { |
| HKEY hkey; |
| int i; |
| |
| if (RegCreateKeyA(HKEY_CURRENT_USER, "Software\\Wine\\WineDbg", &hkey)) |
| { |
| WINE_ERR("Cannot create WineDbg key in registry\n"); |
| return FALSE; |
| } |
| |
| for (i = 0; i < DBG_IV_LAST; i++) |
| { |
| /* FIXME: type should be infered from basic type -if any- of intvar */ |
| if (dbg_internal_vars[i].pval == &dbg_internal_vars[i].val) |
| RegSetValueEx(hkey, dbg_internal_vars[i].name, 0, |
| REG_DWORD, (const void*)dbg_internal_vars[i].pval, |
| sizeof(*dbg_internal_vars[i].pval)); |
| } |
| RegCloseKey(hkey); |
| return TRUE; |
| } |
| |
| const struct dbg_internal_var* dbg_get_internal_var(const char* name) |
| { |
| const struct dbg_internal_var* div; |
| |
| for (div = &dbg_internal_vars[DBG_IV_LAST - 1]; div >= dbg_internal_vars; div--) |
| { |
| if (!strcmp(div->name, name)) return div; |
| } |
| for (div = dbg_context_vars; div->name; div++) |
| { |
| if (!strcasecmp(div->name, name)) return div; |
| } |
| |
| return NULL; |
| } |
| |
| struct dbg_process* dbg_get_process(DWORD pid) |
| { |
| struct dbg_process* p; |
| |
| for (p = dbg_process_list; p; p = p->next) |
| if (p->pid == pid) break; |
| return p; |
| } |
| |
| struct dbg_process* dbg_add_process(DWORD pid, HANDLE h, const char* imageName) |
| { |
| struct dbg_process* p; |
| |
| if ((p = dbg_get_process(pid))) |
| { |
| if (p->handle != 0) |
| { |
| WINE_ERR("Process (%lu) is already defined\n", pid); |
| } |
| else |
| { |
| p->handle = h; |
| p->imageName = imageName ? strcpy(HeapAlloc(GetProcessHeap(), 0, strlen(imageName) + 1), imageName) : NULL; |
| } |
| return p; |
| } |
| |
| if (!(p = HeapAlloc(GetProcessHeap(), 0, sizeof(struct dbg_process)))) return NULL; |
| p->handle = h; |
| p->pid = pid; |
| p->imageName = imageName ? strcpy(HeapAlloc(GetProcessHeap(), 0, strlen(imageName) + 1), imageName) : NULL; |
| p->threads = NULL; |
| p->continue_on_first_exception = FALSE; |
| p->next_bp = 1; /* breakpoint 0 is reserved for step-over */ |
| memset(p->bp, 0, sizeof(p->bp)); |
| p->delayed_bp = NULL; |
| p->num_delayed_bp = 0; |
| |
| p->next = dbg_process_list; |
| p->prev = NULL; |
| if (dbg_process_list) dbg_process_list->prev = p; |
| dbg_process_list = p; |
| return p; |
| } |
| |
| void dbg_del_process(struct dbg_process* p) |
| { |
| int i; |
| |
| while (p->threads) dbg_del_thread(p->threads); |
| |
| for (i = 0; i < p->num_delayed_bp; i++) |
| if (p->delayed_bp[i].is_symbol) |
| HeapFree(GetProcessHeap(), 0, p->delayed_bp[i].u.symbol.name); |
| |
| HeapFree(GetProcessHeap(), 0, p->delayed_bp); |
| if (p->prev) p->prev->next = p->next; |
| if (p->next) p->next->prev = p->prev; |
| if (p == dbg_process_list) dbg_process_list = p->next; |
| if (p == dbg_curr_process) dbg_curr_process = NULL; |
| HeapFree(GetProcessHeap(), 0, (char*)p->imageName); |
| HeapFree(GetProcessHeap(), 0, p); |
| } |
| |
| static void dbg_init_current_process(void) |
| { |
| } |
| |
| struct mod_loader_info |
| { |
| HANDLE handle; |
| IMAGEHLP_MODULE* imh_mod; |
| }; |
| |
| static BOOL CALLBACK mod_loader_cb(PSTR mod_name, DWORD base, void* ctx) |
| { |
| struct mod_loader_info* mli = (struct mod_loader_info*)ctx; |
| |
| if (!strcmp(mod_name, "<wine-loader>")) |
| { |
| if (SymGetModuleInfo(mli->handle, base, mli->imh_mod)) |
| return FALSE; /* stop enum */ |
| } |
| return TRUE; |
| } |
| |
| BOOL dbg_get_debuggee_info(HANDLE hProcess, IMAGEHLP_MODULE* imh_mod) |
| { |
| struct mod_loader_info mli; |
| DWORD opt; |
| |
| /* this will resynchronize builtin dbghelp's internal ELF module list */ |
| SymLoadModule(hProcess, 0, 0, 0, 0, 0); |
| mli.handle = hProcess; |
| mli.imh_mod = imh_mod; |
| imh_mod->SizeOfStruct = sizeof(*imh_mod); |
| imh_mod->BaseOfImage = 0; |
| /* this is a wine specific options to return also ELF modules in the |
| * enumeration |
| */ |
| SymSetOptions((opt = SymGetOptions()) | 0x40000000); |
| SymEnumerateModules(hProcess, mod_loader_cb, (void*)&mli); |
| SymSetOptions(opt); |
| |
| return imh_mod->BaseOfImage != 0; |
| } |
| |
| struct dbg_thread* dbg_get_thread(struct dbg_process* p, DWORD tid) |
| { |
| struct dbg_thread* t; |
| |
| if (!p) return NULL; |
| for (t = p->threads; t; t = t->next) |
| if (t->tid == tid) break; |
| return t; |
| } |
| |
| struct dbg_thread* dbg_add_thread(struct dbg_process* p, DWORD tid, |
| HANDLE h, void* teb) |
| { |
| struct dbg_thread* t = HeapAlloc(GetProcessHeap(), 0, sizeof(struct dbg_thread)); |
| |
| if (!t) |
| return NULL; |
| |
| t->handle = h; |
| t->tid = tid; |
| t->teb = teb; |
| t->process = p; |
| t->exec_mode = dbg_exec_cont; |
| t->exec_count = 0; |
| t->step_over_bp.enabled = FALSE; |
| t->step_over_bp.refcount = 0; |
| |
| snprintf(t->name, sizeof(t->name), "0x%08lx", tid); |
| |
| t->next = p->threads; |
| t->prev = NULL; |
| if (p->threads) p->threads->prev = t; |
| p->threads = t; |
| |
| return t; |
| } |
| |
| static void dbg_init_current_thread(void* start) |
| { |
| if (start) |
| { |
| if (dbg_curr_process->threads && |
| !dbg_curr_process->threads->next && /* first thread ? */ |
| DBG_IVAR(BreakAllThreadsStartup)) |
| { |
| ADDRESS addr; |
| |
| break_set_xpoints(FALSE); |
| addr.Mode = AddrModeFlat; |
| addr.Offset = (DWORD)start; |
| break_add_break(&addr, TRUE); |
| break_set_xpoints(TRUE); |
| } |
| } |
| } |
| |
| void dbg_del_thread(struct 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; |
| if (t == dbg_curr_thread) dbg_curr_thread = NULL; |
| HeapFree(GetProcessHeap(), 0, t); |
| } |
| |
| static unsigned dbg_handle_debug_event(DEBUG_EVENT* de); |
| |
| /****************************************************************** |
| * dbg_attach_debuggee |
| * |
| * Sets the debuggee to <pid> |
| * cofe instructs winedbg what to do when first exception is received |
| * (break=FALSE, continue=TRUE) |
| * wfe is set to TRUE if dbg_attach_debuggee should also proceed with all debug events |
| * until the first exception is received (aka: attach to an already running process) |
| */ |
| BOOL dbg_attach_debuggee(DWORD pid, BOOL cofe, BOOL wfe) |
| { |
| DEBUG_EVENT de; |
| |
| if (!(dbg_curr_process = dbg_add_process(pid, 0, NULL))) return FALSE; |
| |
| if (!DebugActiveProcess(pid)) |
| { |
| dbg_printf("Can't attach process %lx: error %ld\n", pid, GetLastError()); |
| dbg_del_process(dbg_curr_process); |
| return FALSE; |
| } |
| dbg_curr_process->continue_on_first_exception = cofe; |
| |
| if (wfe) /* shall we proceed all debug events until we get an exception ? */ |
| { |
| dbg_interactiveP = FALSE; |
| while (dbg_curr_process && WaitForDebugEvent(&de, INFINITE)) |
| { |
| if (dbg_handle_debug_event(&de)) break; |
| } |
| if (dbg_curr_process) dbg_interactiveP = TRUE; |
| } |
| return TRUE; |
| } |
| |
| BOOL dbg_detach_debuggee(void) |
| { |
| /* remove all set breakpoints in debuggee code */ |
| break_set_xpoints(FALSE); |
| /* needed for single stepping (ugly). |
| * should this be handled inside the server ??? |
| */ |
| be_cpu->single_step(&dbg_context, FALSE); |
| SetThreadContext(dbg_curr_thread->handle, &dbg_context); |
| if (dbg_in_exception) |
| ContinueDebugEvent(dbg_curr_pid, dbg_curr_tid, DBG_CONTINUE); |
| if (!DebugActiveProcessStop(dbg_curr_pid)) return FALSE; |
| dbg_del_process(dbg_curr_process); |
| |
| return TRUE; |
| } |
| |
| static unsigned dbg_fetch_context(void) |
| { |
| dbg_context.ContextFlags = CONTEXT_CONTROL |
| | CONTEXT_INTEGER |
| #ifdef CONTEXT_SEGMENTS |
| | CONTEXT_SEGMENTS |
| #endif |
| #ifdef CONTEXT_DEBUG_REGISTERS |
| | CONTEXT_DEBUG_REGISTERS |
| #endif |
| ; |
| if (!GetThreadContext(dbg_curr_thread->handle, &dbg_context)) |
| { |
| WINE_WARN("Can't get thread's context\n"); |
| return FALSE; |
| } |
| return TRUE; |
| } |
| |
| static unsigned dbg_exception_prolog(BOOL is_debug, DWORD code) |
| { |
| ADDRESS addr; |
| BOOL is_break; |
| |
| dbg_in_exception = TRUE; |
| memory_get_current_pc(&addr); |
| break_suspend_execution(); |
| |
| if (!is_debug) |
| { |
| switch (addr.Mode) |
| { |
| case AddrModeFlat: dbg_printf(" in 32-bit code (0x%08lx)", addr.Offset); break; |
| case AddrModeReal: dbg_printf(" in vm86 code (%04x:%04lx)", addr.Segment, addr.Offset); break; |
| case AddrMode1616: dbg_printf(" in 16-bit code (%04x:%04lx)", addr.Segment, addr.Offset); break; |
| default: dbg_printf(" bad address"); |
| } |
| dbg_printf(".\n"); |
| } |
| |
| /* this will resynchronize builtin dbghelp's internal ELF module list */ |
| SymLoadModule(dbg_curr_process->handle, 0, 0, 0, 0, 0); |
| |
| /* |
| * Do a quiet backtrace so that we have an idea of what the situation |
| * is WRT the source files. |
| */ |
| stack_backtrace(dbg_curr_tid, FALSE); |
| if (is_debug && |
| break_should_continue(&addr, code, &dbg_curr_thread->exec_count, &is_break)) |
| return FALSE; |
| |
| if (addr.Mode != dbg_curr_thread->addr_mode) |
| { |
| const char* name = NULL; |
| |
| switch (addr.Mode) |
| { |
| case AddrMode1616: name = "16 bit"; break; |
| case AddrMode1632: name = "X?X??X"; break; |
| case AddrModeReal: name = "vm86"; break; |
| case AddrModeFlat: name = "32 bit"; break; |
| } |
| |
| dbg_printf("In %s mode.\n", name); |
| dbg_curr_thread->addr_mode = addr.Mode; |
| } |
| display_print(); |
| |
| if (!is_debug) |
| { |
| /* This is a real crash, dump some info */ |
| be_cpu->print_context(dbg_curr_thread->handle, &dbg_context); |
| stack_info(); |
| be_cpu->print_segment_info(dbg_curr_thread->handle, &dbg_context); |
| stack_backtrace(dbg_curr_tid, TRUE); |
| } |
| if (!is_debug || is_break || |
| dbg_curr_thread->exec_mode == dbg_exec_step_over_insn || |
| dbg_curr_thread->exec_mode == dbg_exec_step_into_insn) |
| { |
| ADDRESS tmp = addr; |
| /* Show where we crashed */ |
| dbg_curr_frame = 0; |
| memory_disasm_one_insn(&tmp); |
| } |
| source_list_from_addr(&addr, 0); |
| |
| return TRUE; |
| } |
| |
| static void dbg_exception_epilog(void) |
| { |
| break_restart_execution(dbg_curr_thread->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 (dbg_curr_thread->exec_mode == dbg_exec_cont) |
| dbg_curr_thread->exec_count = 0; |
| dbg_in_exception = FALSE; |
| } |
| |
| static DWORD dbg_handle_exception(EXCEPTION_RECORD* rec, BOOL first_chance) |
| { |
| BOOL is_debug = FALSE; |
| THREADNAME_INFO* pThreadName; |
| struct dbg_thread* pThread; |
| |
| assert(dbg_curr_thread); |
| |
| WINE_TRACE("exception=%lx first_chance=%c\n", |
| rec->ExceptionCode, first_chance ? 'Y' : 'N'); |
| |
| 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 = dbg_curr_thread; |
| else |
| pThread = dbg_get_thread(dbg_curr_process, pThreadName->dwThreadID); |
| |
| if (dbg_read_memory(pThreadName->szName, pThread->name, 9)) |
| dbg_printf("Thread ID=0x%lx renamed using MS VC6 extension (name==\"%s\")\n", |
| pThread->tid, pThread->name); |
| return DBG_CONTINUE; |
| } |
| |
| if (first_chance && !is_debug && !DBG_IVAR(BreakOnFirstChance)) |
| { |
| /* pass exception to program except for debug exceptions */ |
| return DBG_EXCEPTION_NOT_HANDLED; |
| } |
| |
| if (!is_debug) |
| { |
| /* print some infos */ |
| dbg_printf("%s: ", |
| first_chance ? "First chance exception" : "Unhandled exception"); |
| switch (rec->ExceptionCode) |
| { |
| case EXCEPTION_INT_DIVIDE_BY_ZERO: |
| dbg_printf("divide by zero"); |
| break; |
| case EXCEPTION_INT_OVERFLOW: |
| dbg_printf("overflow"); |
| break; |
| case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: |
| dbg_printf("array bounds"); |
| break; |
| case EXCEPTION_ILLEGAL_INSTRUCTION: |
| dbg_printf("illegal instruction"); |
| break; |
| case EXCEPTION_STACK_OVERFLOW: |
| dbg_printf("stack overflow"); |
| break; |
| case EXCEPTION_PRIV_INSTRUCTION: |
| dbg_printf("privileged instruction"); |
| break; |
| case EXCEPTION_ACCESS_VIOLATION: |
| if (rec->NumberParameters == 2) |
| dbg_printf("page fault on %s access to 0x%08lx", |
| rec->ExceptionInformation[0] ? "write" : "read", |
| rec->ExceptionInformation[1]); |
| else |
| dbg_printf("page fault"); |
| break; |
| case EXCEPTION_DATATYPE_MISALIGNMENT: |
| dbg_printf("Alignment"); |
| break; |
| case DBG_CONTROL_C: |
| dbg_printf("^C"); |
| break; |
| case CONTROL_C_EXIT: |
| dbg_printf("^C"); |
| break; |
| case STATUS_POSSIBLE_DEADLOCK: |
| { |
| ADDRESS addr; |
| |
| addr.Mode = AddrModeFlat; |
| addr.Offset = rec->ExceptionInformation[0]; |
| |
| dbg_printf("wait failed on critical section "); |
| print_address(&addr, FALSE); |
| } |
| if (!DBG_IVAR(BreakOnCritSectTimeOut)) |
| { |
| dbg_printf("\n"); |
| return DBG_EXCEPTION_NOT_HANDLED; |
| } |
| break; |
| case EXCEPTION_WINE_STUB: |
| { |
| char dll[32], name[64]; |
| memory_get_string(dbg_curr_process->handle, |
| (void*)rec->ExceptionInformation[0], TRUE, FALSE, |
| dll, sizeof(dll)); |
| if (HIWORD(rec->ExceptionInformation[1])) |
| memory_get_string(dbg_curr_process->handle, |
| (void*)rec->ExceptionInformation[1], TRUE, FALSE, |
| name, sizeof(name)); |
| else |
| sprintf( name, "%ld", rec->ExceptionInformation[1] ); |
| dbg_printf("unimplemented function %s.%s called", dll, name); |
| } |
| break; |
| case EXCEPTION_WINE_ASSERTION: |
| dbg_printf("assertion failed"); |
| break; |
| case EXCEPTION_VM86_INTx: |
| dbg_printf("interrupt %02lx in vm86 mode", rec->ExceptionInformation[0]); |
| break; |
| case EXCEPTION_VM86_STI: |
| dbg_printf("sti in vm86 mode"); |
| break; |
| case EXCEPTION_VM86_PICRETURN: |
| dbg_printf("PIC return in vm86 mode"); |
| break; |
| case EXCEPTION_FLT_DENORMAL_OPERAND: |
| dbg_printf("denormal float operand"); |
| break; |
| case EXCEPTION_FLT_DIVIDE_BY_ZERO: |
| dbg_printf("divide by zero"); |
| break; |
| case EXCEPTION_FLT_INEXACT_RESULT: |
| dbg_printf("inexact float result"); |
| break; |
| case EXCEPTION_FLT_INVALID_OPERATION: |
| dbg_printf("invalid float operation"); |
| break; |
| case EXCEPTION_FLT_OVERFLOW: |
| dbg_printf("floating pointer overflow"); |
| break; |
| case EXCEPTION_FLT_UNDERFLOW: |
| dbg_printf("floating pointer underflow"); |
| break; |
| case EXCEPTION_FLT_STACK_CHECK: |
| dbg_printf("floating point stack check"); |
| break; |
| default: |
| dbg_printf("0x%08lx", rec->ExceptionCode); |
| break; |
| } |
| } |
| |
| if (dbg_action_mode == automatic_mode) |
| { |
| dbg_exception_prolog(is_debug, rec->ExceptionCode); |
| dbg_exception_epilog(); |
| return 0; /* terminate execution */ |
| } |
| |
| if (dbg_exception_prolog(is_debug, rec->ExceptionCode)) |
| { |
| dbg_interactiveP = TRUE; |
| return 0; |
| } |
| dbg_exception_epilog(); |
| |
| return DBG_CONTINUE; |
| } |
| |
| static unsigned dbg_handle_debug_event(DEBUG_EVENT* de) |
| { |
| char buffer[256]; |
| DWORD cont = DBG_CONTINUE; |
| |
| dbg_curr_pid = de->dwProcessId; |
| dbg_curr_tid = de->dwThreadId; |
| |
| if ((dbg_curr_process = dbg_get_process(de->dwProcessId)) != NULL) |
| dbg_curr_thread = dbg_get_thread(dbg_curr_process, de->dwThreadId); |
| else |
| dbg_curr_thread = NULL; |
| |
| switch (de->dwDebugEventCode) |
| { |
| case EXCEPTION_DEBUG_EVENT: |
| if (!dbg_curr_thread) |
| { |
| WINE_ERR("%08lx:%08lx: not a registered process or thread (perhaps a 16 bit one ?)\n", |
| de->dwProcessId, de->dwThreadId); |
| break; |
| } |
| |
| WINE_TRACE("%08lx:%08lx: exception code=%08lx\n", |
| de->dwProcessId, de->dwThreadId, |
| de->u.Exception.ExceptionRecord.ExceptionCode); |
| |
| if (dbg_curr_process->continue_on_first_exception) |
| { |
| dbg_curr_process->continue_on_first_exception = FALSE; |
| if (!DBG_IVAR(BreakOnAttach)) break; |
| } |
| if (dbg_fetch_context()) |
| { |
| cont = dbg_handle_exception(&de->u.Exception.ExceptionRecord, |
| de->u.Exception.dwFirstChance); |
| if (cont && dbg_curr_thread) |
| { |
| SetThreadContext(dbg_curr_thread->handle, &dbg_context); |
| } |
| } |
| break; |
| |
| case CREATE_PROCESS_DEBUG_EVENT: |
| memory_get_string_indirect(de->u.CreateProcessInfo.hProcess, |
| de->u.CreateProcessInfo.lpImageName, |
| de->u.CreateProcessInfo.fUnicode, |
| buffer, sizeof(buffer)); |
| WINE_TRACE("%08lx:%08lx: create process '%s'/%p @%08lx (%ld<%ld>)\n", |
| de->dwProcessId, de->dwThreadId, |
| buffer, de->u.CreateProcessInfo.lpImageName, |
| (unsigned long)(void*)de->u.CreateProcessInfo.lpStartAddress, |
| de->u.CreateProcessInfo.dwDebugInfoFileOffset, |
| de->u.CreateProcessInfo.nDebugInfoSize); |
| |
| dbg_curr_process = dbg_add_process(de->dwProcessId, |
| de->u.CreateProcessInfo.hProcess, |
| buffer[0] ? buffer : "<Debugged Process>"); |
| if (dbg_curr_process == NULL) |
| { |
| WINE_ERR("Couldn't create process\n"); |
| break; |
| } |
| if (!SymInitialize(dbg_curr_process->handle, NULL, TRUE)) |
| dbg_printf("Couldn't initiate DbgHelp\n"); |
| |
| WINE_TRACE("%08lx:%08lx: create thread I @%08lx\n", |
| de->dwProcessId, de->dwThreadId, |
| (unsigned long)(void*)de->u.CreateProcessInfo.lpStartAddress); |
| |
| dbg_curr_thread = dbg_add_thread(dbg_curr_process, |
| de->dwThreadId, |
| de->u.CreateProcessInfo.hThread, |
| de->u.CreateProcessInfo.lpThreadLocalBase); |
| if (!dbg_curr_thread) |
| { |
| WINE_ERR("Couldn't create thread\n"); |
| break; |
| } |
| dbg_init_current_process(); |
| dbg_init_current_thread(de->u.CreateProcessInfo.lpStartAddress); |
| break; |
| |
| case EXIT_PROCESS_DEBUG_EVENT: |
| WINE_TRACE("%08lx:%08lx: exit process (%ld)\n", |
| de->dwProcessId, de->dwThreadId, de->u.ExitProcess.dwExitCode); |
| |
| if (dbg_curr_process == NULL) |
| { |
| WINE_ERR("Unknown process\n"); |
| break; |
| } |
| if (!SymCleanup(dbg_curr_process->handle)) |
| dbg_printf("Couldn't initiate DbgHelp\n"); |
| /* just in case */ |
| break_set_xpoints(FALSE); |
| /* kill last thread */ |
| dbg_del_thread(dbg_curr_process->threads); |
| dbg_del_process(dbg_curr_process); |
| |
| dbg_printf("Process of pid=0x%08lx has terminated\n", dbg_curr_pid); |
| break; |
| |
| case CREATE_THREAD_DEBUG_EVENT: |
| WINE_TRACE("%08lx:%08lx: create thread D @%08lx\n", |
| de->dwProcessId, de->dwThreadId, |
| (unsigned long)(void*)de->u.CreateThread.lpStartAddress); |
| |
| if (dbg_curr_process == NULL) |
| { |
| WINE_ERR("Unknown process\n"); |
| break; |
| } |
| if (dbg_get_thread(dbg_curr_process, de->dwThreadId) != NULL) |
| { |
| WINE_TRACE("Thread already listed, skipping\n"); |
| break; |
| } |
| |
| dbg_curr_thread = dbg_add_thread(dbg_curr_process, |
| de->dwThreadId, |
| de->u.CreateThread.hThread, |
| de->u.CreateThread.lpThreadLocalBase); |
| if (!dbg_curr_thread) |
| { |
| WINE_ERR("Couldn't create thread\n"); |
| break; |
| } |
| dbg_init_current_thread(de->u.CreateThread.lpStartAddress); |
| break; |
| |
| case EXIT_THREAD_DEBUG_EVENT: |
| WINE_TRACE("%08lx:%08lx: exit thread (%ld)\n", |
| de->dwProcessId, de->dwThreadId, de->u.ExitThread.dwExitCode); |
| |
| if (dbg_curr_thread == NULL) |
| { |
| WINE_ERR("Unknown thread\n"); |
| break; |
| } |
| /* FIXME: remove break point set on thread startup */ |
| dbg_del_thread(dbg_curr_thread); |
| break; |
| |
| case LOAD_DLL_DEBUG_EVENT: |
| if (dbg_curr_thread == NULL) |
| { |
| WINE_ERR("Unknown thread\n"); |
| break; |
| } |
| memory_get_string_indirect(dbg_curr_process->handle, |
| de->u.LoadDll.lpImageName, |
| de->u.LoadDll.fUnicode, |
| buffer, sizeof(buffer)); |
| |
| WINE_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); |
| SymLoadModule(dbg_curr_process->handle, de->u.LoadDll.hFile, buffer, NULL, |
| (unsigned long)de->u.LoadDll.lpBaseOfDll, 0); |
| break_set_xpoints(FALSE); |
| break_check_delayed_bp(); |
| break_set_xpoints(TRUE); |
| if (DBG_IVAR(BreakOnDllLoad)) |
| { |
| dbg_printf("Stopping on DLL %s loading at 0x%08lx\n", |
| buffer, (unsigned long)de->u.LoadDll.lpBaseOfDll); |
| if (dbg_fetch_context()) cont = 0; |
| } |
| break; |
| |
| case UNLOAD_DLL_DEBUG_EVENT: |
| WINE_TRACE("%08lx:%08lx: unload DLL @%08lx\n", |
| de->dwProcessId, de->dwThreadId, |
| (unsigned long)de->u.UnloadDll.lpBaseOfDll); |
| break_delete_xpoints_from_module((unsigned long)de->u.UnloadDll.lpBaseOfDll); |
| SymUnloadModule(dbg_curr_process->handle, |
| (unsigned long)de->u.UnloadDll.lpBaseOfDll); |
| break; |
| |
| case OUTPUT_DEBUG_STRING_EVENT: |
| if (dbg_curr_thread == NULL) |
| { |
| WINE_ERR("Unknown thread\n"); |
| break; |
| } |
| |
| memory_get_string(dbg_curr_process->handle, |
| de->u.DebugString.lpDebugStringData, TRUE, |
| de->u.DebugString.fUnicode, buffer, sizeof(buffer)); |
| WINE_TRACE("%08lx:%08lx: output debug string (%s)\n", |
| de->dwProcessId, de->dwThreadId, buffer); |
| break; |
| |
| case RIP_EVENT: |
| WINE_TRACE("%08lx:%08lx: rip error=%ld type=%ld\n", |
| de->dwProcessId, de->dwThreadId, de->u.RipInfo.dwError, |
| de->u.RipInfo.dwType); |
| break; |
| |
| default: |
| WINE_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 dbg_resume_debuggee(DWORD cont) |
| { |
| if (dbg_in_exception) |
| { |
| ADDRESS addr; |
| |
| dbg_exception_epilog(); |
| memory_get_current_pc(&addr); |
| WINE_TRACE("Exiting debugger PC=0x%lx mode=%d count=%d\n", |
| addr.Offset, dbg_curr_thread->exec_mode, |
| dbg_curr_thread->exec_count); |
| if (dbg_curr_thread) |
| { |
| if (!SetThreadContext(dbg_curr_thread->handle, &dbg_context)) |
| dbg_printf("Cannot set ctx on %lu\n", dbg_curr_tid); |
| } |
| } |
| dbg_interactiveP = FALSE; |
| if (!ContinueDebugEvent(dbg_curr_pid, dbg_curr_tid, cont)) |
| dbg_printf("Cannot continue on %lu (%lu)\n", dbg_curr_tid, cont); |
| } |
| |
| void dbg_wait_next_exception(DWORD cont, int count, int mode) |
| { |
| DEBUG_EVENT de; |
| ADDRESS addr; |
| |
| if (cont == DBG_CONTINUE) |
| { |
| dbg_curr_thread->exec_count = count; |
| dbg_curr_thread->exec_mode = mode; |
| } |
| dbg_resume_debuggee(cont); |
| |
| while (dbg_curr_process && WaitForDebugEvent(&de, INFINITE)) |
| { |
| if (dbg_handle_debug_event(&de)) break; |
| } |
| if (!dbg_curr_process) return; |
| dbg_interactiveP = TRUE; |
| |
| memory_get_current_pc(&addr); |
| WINE_TRACE("Entering debugger PC=0x%lx mode=%d count=%d\n", |
| addr.Offset, dbg_curr_thread->exec_mode, |
| dbg_curr_thread->exec_count); |
| } |
| |
| static unsigned dbg_main_loop(void) |
| { |
| DEBUG_EVENT de; |
| |
| if (dbg_curr_process) |
| dbg_printf("WineDbg starting on pid 0x%lx\n", dbg_curr_pid); |
| |
| /* wait for first exception */ |
| while (WaitForDebugEvent(&de, INFINITE)) |
| { |
| if (dbg_handle_debug_event(&de)) break; |
| } |
| switch (dbg_action_mode) |
| { |
| case automatic_mode: |
| /* print some extra information */ |
| dbg_printf("Modules:\n"); |
| info_win32_module(0); /* print all modules */ |
| dbg_printf("Threads:\n"); |
| info_win32_threads(); |
| break; |
| default: |
| dbg_interactiveP = TRUE; |
| parser(NULL); |
| } |
| dbg_printf("WineDbg terminated on pid 0x%lx\n", dbg_curr_pid); |
| |
| return 0; |
| } |
| |
| static unsigned dbg_start_debuggee(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)) |
| { |
| dbg_printf("Couldn't start process '%s'\n", cmdLine); |
| return FALSE; |
| } |
| if (!info.dwProcessId) |
| { |
| /* this happens when the program being run is not a Wine binary |
| * (for example, a shell wrapper around a WineLib app) |
| */ |
| /* Current fix: list running processes and let the user attach |
| * to one of them (sic) |
| * FIXME: implement a real fix => grab the process (from the |
| * running processes) from its name |
| */ |
| dbg_printf("Debuggee has been started (%s)\n" |
| "But WineDbg isn't attached to it. Maybe you're trying to debug a winelib wrapper ??\n" |
| "Try to attach to one of those processes:\n", cmdLine); |
| /* FIXME: (HACK) we need some time before the wrapper executes the winelib app */ |
| Sleep(100); |
| info_win32_processes(); |
| return TRUE; |
| } |
| dbg_curr_pid = info.dwProcessId; |
| if (!(dbg_curr_process = dbg_add_process(dbg_curr_pid, 0, NULL))) return FALSE; |
| |
| return TRUE; |
| } |
| |
| void dbg_run_debuggee(const char* args) |
| { |
| if (args) |
| { |
| WINE_FIXME("Re-running current program with %s as args is broken\n", args); |
| return; |
| } |
| else |
| { |
| DEBUG_EVENT de; |
| |
| if (!dbg_last_cmd_line) |
| { |
| dbg_printf("Cannot find previously used command line.\n"); |
| return; |
| } |
| dbg_start_debuggee(dbg_last_cmd_line); |
| while (dbg_curr_process && WaitForDebugEvent(&de, INFINITE)) |
| { |
| if (dbg_handle_debug_event(&de)) break; |
| } |
| source_list_from_addr(NULL, 0); |
| } |
| } |
| |
| BOOL dbg_interrupt_debuggee(void) |
| { |
| if (!dbg_process_list) return FALSE; |
| /* FIXME: since we likely have a single process, signal the first process |
| * in list |
| */ |
| if (dbg_process_list->next) dbg_printf("Ctrl-C: only stopping the first process\n"); |
| else dbg_printf("Ctrl-C: stopping debuggee\n"); |
| dbg_process_list->continue_on_first_exception = FALSE; |
| return DebugBreakProcess(dbg_process_list->handle); |
| } |
| |
| static BOOL WINAPI ctrl_c_handler(DWORD dwCtrlType) |
| { |
| if (dwCtrlType == CTRL_C_EVENT) |
| { |
| return dbg_interrupt_debuggee(); |
| } |
| return FALSE; |
| } |
| |
| static void dbg_init_console(void) |
| { |
| /* set our control-C handler */ |
| SetConsoleCtrlHandler(ctrl_c_handler, TRUE); |
| |
| /* set our own title */ |
| SetConsoleTitle("Wine Debugger"); |
| } |
| |
| static int dbg_winedbg_usage(void) |
| { |
| dbg_printf("Usage: winedbg [--auto] [--gdb] cmdline\n"); |
| return 1; |
| } |
| |
| struct backend_cpu* be_cpu; |
| #ifdef __i386__ |
| extern struct backend_cpu be_i386; |
| #elif __powerpc__ |
| extern struct backend_cpu be_ppc; |
| #elif __ALPHA__ |
| extern struct backend_cpu be_alpha; |
| #else |
| # error CPU unknown |
| #endif |
| |
| int main(int argc, char** argv) |
| { |
| DWORD retv = 0; |
| unsigned gdb_flags = 0; |
| |
| #ifdef __i386__ |
| be_cpu = &be_i386; |
| #elif __powerpc__ |
| be_cpu = &be_ppc; |
| #elif __ALPHA__ |
| be_cpu = &be_alpha; |
| #else |
| # error CPU unknown |
| #endif |
| /* Initialize the output */ |
| dbg_houtput = GetStdHandle(STD_OUTPUT_HANDLE); |
| |
| /* Initialize internal vars */ |
| if (!dbg_load_internal_vars()) return -1; |
| |
| /* parse options */ |
| while (argc > 1 && argv[1][0] == '-') |
| { |
| if (!strcmp(argv[1], "--command")) |
| { |
| argc--; argv++; |
| arg_command = HeapAlloc(GetProcessHeap(), 0, strlen(argv[1])+2); |
| strcpy(arg_command, argv[1]); |
| strcat(arg_command, "\n"); |
| argc--; argv++; |
| continue; |
| } |
| if (!strcmp(argv[1], "--auto")) |
| { |
| if (dbg_action_mode != none_mode) return dbg_winedbg_usage(); |
| dbg_action_mode = automatic_mode; |
| /* force some internal variables */ |
| DBG_IVAR(BreakOnDllLoad) = 0; |
| argc--; argv++; |
| dbg_houtput = GetStdHandle(STD_ERROR_HANDLE); |
| continue; |
| } |
| if (!strcmp(argv[1], "--gdb")) |
| { |
| if (dbg_action_mode != none_mode) return dbg_winedbg_usage(); |
| dbg_action_mode = gdb_mode; |
| argc--; argv++; |
| continue; |
| } |
| if (strcmp(argv[1], "--no-start") == 0 && dbg_action_mode == gdb_mode) |
| { |
| gdb_flags |= 1; |
| argc--; argv++; /* as we don't use argv[0] */ |
| continue; |
| } |
| if (strcmp(argv[1], "--with-xterm") == 0 && dbg_action_mode == gdb_mode) |
| { |
| gdb_flags |= 2; |
| argc--; argv++; /* as we don't use argv[0] */ |
| continue; |
| } |
| return dbg_winedbg_usage(); |
| } |
| |
| if (dbg_action_mode == none_mode) dbg_action_mode = winedbg_mode; |
| |
| /* try the form <myself> pid */ |
| if (dbg_curr_pid == 0 && argc == 2) |
| { |
| char* ptr; |
| |
| dbg_curr_pid = strtol(argv[1], &ptr, 10); |
| if (dbg_curr_pid == 0 || ptr != argv[1] + strlen(argv[1]) || |
| !dbg_attach_debuggee(dbg_curr_pid, dbg_action_mode != gdb_mode, FALSE)) |
| dbg_curr_pid = 0; |
| } |
| |
| /* try the form <myself> pid evt (Win32 JIT debugger) */ |
| if (dbg_curr_pid == 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 (!dbg_attach_debuggee(pid, TRUE, FALSE)) |
| { |
| /* don't care about result */ |
| SetEvent(hEvent); |
| goto leave; |
| } |
| if (!SetEvent(hEvent)) |
| { |
| WINE_ERR("Invalid event handle: %p\n", hEvent); |
| goto leave; |
| } |
| CloseHandle(hEvent); |
| dbg_curr_pid = pid; |
| } |
| } |
| |
| if (dbg_curr_pid == 0 && argc > 1) |
| { |
| int i, len; |
| LPSTR cmdLine; |
| |
| if (!(cmdLine = HeapAlloc(GetProcessHeap(), 0, len = 1))) goto oom_leave; |
| cmdLine[0] = '\0'; |
| |
| for (i = 1; i < argc; i++) |
| { |
| len += strlen(argv[i]) + 1; |
| if (!(cmdLine = HeapReAlloc(GetProcessHeap(), 0, cmdLine, len))) |
| goto oom_leave; |
| strcat(cmdLine, argv[i]); |
| cmdLine[len - 2] = ' '; |
| cmdLine[len - 1] = '\0'; |
| } |
| |
| if (!dbg_start_debuggee(cmdLine)) |
| { |
| dbg_printf("Couldn't start process '%s'\n", cmdLine); |
| goto leave; |
| } |
| dbg_last_cmd_line = cmdLine; |
| } |
| /* don't save local vars in gdb mode */ |
| if (dbg_action_mode == gdb_mode && dbg_curr_pid) |
| return gdb_remote(gdb_flags); |
| |
| dbg_init_console(); |
| |
| SymSetOptions(SymGetOptions() | |
| SYMOPT_LOAD_LINES | SYMOPT_DEFERRED_LOADS | SYMOPT_AUTO_PUBLICS); |
| |
| retv = dbg_main_loop(); |
| /* don't save modified variables in auto mode */ |
| if (dbg_action_mode != automatic_mode) dbg_save_internal_vars(); |
| |
| leave: |
| return retv; |
| |
| oom_leave: |
| dbg_printf("Out of memory\n"); |
| return retv; |
| } |
