| /* |
| * Wine debugger - back-end for an active target |
| * |
| * Copyright 2000-2006 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA |
| */ |
| |
| #include "config.h" |
| |
| #include <stdlib.h> |
| #include <stdio.h> |
| #include <string.h> |
| #include <stdarg.h> |
| |
| #include "debugger.h" |
| #include "psapi.h" |
| #include "winternl.h" |
| #include "wine/debug.h" |
| #include "wine/exception.h" |
| |
| WINE_DEFAULT_DEBUG_CHANNEL(winedbg); |
| |
| static char* dbg_last_cmd_line; |
| static struct be_process_io be_process_active_io; |
| |
| static void dbg_init_current_process(void) |
| { |
| } |
| |
| 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)) |
| { |
| ADDRESS64 addr; |
| |
| break_set_xpoints(FALSE); |
| addr.Mode = AddrModeFlat; |
| addr.Offset = (DWORD)start; |
| break_add_break(&addr, TRUE, TRUE); |
| break_set_xpoints(TRUE); |
| } |
| } |
| } |
| |
| 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) |
| { |
| if (!(dbg_curr_process = dbg_add_process(&be_process_active_io, pid, 0))) 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; |
| |
| SetEnvironmentVariableA("DBGHELP_NOLIVE", NULL); |
| |
| dbg_curr_process->active_debuggee = TRUE; |
| return TRUE; |
| } |
| |
| static unsigned dbg_fetch_context(void) |
| { |
| dbg_context.ContextFlags = CONTEXT_CONTROL |
| | CONTEXT_INTEGER | CONTEXT_FLOATING_POINT |
| #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, const EXCEPTION_RECORD* rec) |
| { |
| ADDRESS64 addr; |
| BOOL is_break; |
| char hexbuf[MAX_OFFSET_TO_STR_LEN]; |
| |
| memory_get_current_pc(&addr); |
| break_suspend_execution(); |
| dbg_curr_thread->excpt_record = *rec; |
| dbg_curr_thread->in_exception = TRUE; |
| |
| if (!is_debug) |
| { |
| switch (addr.Mode) |
| { |
| case AddrModeFlat: |
| dbg_printf(" in 32-bit code (%s)", |
| memory_offset_to_string(hexbuf, addr.Offset, 0)); |
| break; |
| case AddrModeReal: |
| dbg_printf(" in vm86 code (%04x:%04x)", addr.Segment, (unsigned) addr.Offset); |
| break; |
| case AddrMode1616: |
| dbg_printf(" in 16-bit code (%04x:%04x)", addr.Segment, (unsigned) addr.Offset); |
| break; |
| case AddrMode1632: |
| dbg_printf(" in 32-bit code (%04x:%08lx)", addr.Segment, (unsigned long) 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_fetch_frames(); |
| if (is_debug && |
| break_should_continue(&addr, rec->ExceptionCode, &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 = "32 bit"; 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, 0); |
| stack_info(); |
| be_cpu->print_segment_info(dbg_curr_thread->handle, &dbg_context); |
| stack_backtrace(dbg_curr_tid); |
| } |
| else |
| { |
| static char* last_name; |
| static char* last_file; |
| |
| char buffer[sizeof(SYMBOL_INFO) + 256]; |
| SYMBOL_INFO* si = (SYMBOL_INFO*)buffer; |
| void* lin = memory_to_linear_addr(&addr); |
| DWORD64 disp64; |
| IMAGEHLP_LINE il; |
| DWORD disp; |
| |
| si->SizeOfStruct = sizeof(*si); |
| si->MaxNameLen = 256; |
| il.SizeOfStruct = sizeof(il); |
| if (SymFromAddr(dbg_curr_process->handle, (DWORD_PTR)lin, &disp64, si) && |
| SymGetLineFromAddr(dbg_curr_process->handle, (DWORD_PTR)lin, &disp, &il)) |
| { |
| if ((!last_name || strcmp(last_name, si->Name)) || |
| (!last_file || strcmp(last_file, il.FileName))) |
| { |
| HeapFree(GetProcessHeap(), 0, last_name); |
| HeapFree(GetProcessHeap(), 0, last_file); |
| last_name = strcpy(HeapAlloc(GetProcessHeap(), 0, strlen(si->Name) + 1), si->Name); |
| last_file = strcpy(HeapAlloc(GetProcessHeap(), 0, strlen(il.FileName) + 1), il.FileName); |
| dbg_printf("%s () at %s:%ld\n", last_name, last_file, il.LineNumber); |
| } |
| } |
| } |
| 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) |
| { |
| ADDRESS64 tmp = addr; |
| /* Show where we crashed */ |
| 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_curr_thread->in_exception = FALSE; |
| } |
| |
| static DWORD dbg_handle_exception(const 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(!pThread) |
| { |
| dbg_printf("Thread ID=0x%lx not in our list of threads -> can't rename\n", pThreadName->dwThreadID); |
| return DBG_CONTINUE; |
| } |
| 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) && |
| !(rec->ExceptionFlags & EH_STACK_INVALID)) |
| { |
| /* 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] == EXCEPTION_WRITE_FAULT ? "write" : |
| rec->ExceptionInformation[0] == EXCEPTION_EXECUTE_FAULT ? "execute" : "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: |
| { |
| ADDRESS64 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, |
| (void*)rec->ExceptionInformation[0], TRUE, FALSE, |
| dll, sizeof(dll)); |
| if (HIWORD(rec->ExceptionInformation[1])) |
| memory_get_string(dbg_curr_process, |
| (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( (rec->ExceptionFlags & EH_STACK_INVALID) ) { |
| dbg_printf( ", invalid program stack" ); |
| } |
| |
| if (dbg_exception_prolog(is_debug, rec)) |
| { |
| dbg_interactiveP = TRUE; |
| return 0; |
| } |
| dbg_exception_epilog(); |
| |
| return DBG_CONTINUE; |
| } |
| |
| static BOOL tgt_process_active_close_process(struct dbg_process* pcs, BOOL kill); |
| |
| static void fetch_module_name(void* name_addr, BOOL unicode, void* mod_addr, |
| char* buffer, size_t bufsz, BOOL is_pcs) |
| { |
| memory_get_string_indirect(dbg_curr_process, name_addr, unicode, buffer, bufsz); |
| if (!buffer[0] && |
| !GetModuleFileNameExA(dbg_curr_process->handle, mod_addr, buffer, bufsz)) |
| { |
| if (is_pcs) |
| { |
| HMODULE h; |
| WORD (WINAPI *gpif)(HANDLE, LPSTR, DWORD); |
| |
| /* On Windows, when we get the process creation debug event for a process |
| * created by winedbg, the modules' list is not initialized yet. Hence, |
| * GetModuleFileNameExA (on the main module) will generate an error. |
| * Psapi (starting on XP) provides GetProcessImageFileName() which should |
| * give us the expected result |
| */ |
| if (!(h = GetModuleHandleA("psapi")) || |
| !(gpif = (void*)GetProcAddress(h, "GetProcessImageFileName")) || |
| !(gpif)(dbg_curr_process->handle, buffer, bufsz)) |
| snprintf(buffer, bufsz, "Process_%08lx", dbg_curr_pid); |
| } |
| else |
| snprintf(buffer, bufsz, "DLL_%p", mod_addr); |
| } |
| } |
| |
| 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: |
| dbg_curr_process = dbg_add_process(&be_process_active_io, de->dwProcessId, |
| de->u.CreateProcessInfo.hProcess); |
| if (dbg_curr_process == NULL) |
| { |
| WINE_ERR("Couldn't create process\n"); |
| break; |
| } |
| fetch_module_name(de->u.CreateProcessInfo.lpImageName, |
| de->u.CreateProcessInfo.fUnicode, |
| de->u.CreateProcessInfo.lpBaseOfImage, |
| buffer, sizeof(buffer), TRUE); |
| |
| 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_set_process_name(dbg_curr_process, buffer); |
| |
| if (!SymInitialize(dbg_curr_process->handle, NULL, FALSE)) |
| dbg_printf("Couldn't initiate DbgHelp\n"); |
| if (!SymLoadModule(dbg_curr_process->handle, de->u.CreateProcessInfo.hFile, buffer, NULL, |
| (unsigned long)de->u.CreateProcessInfo.lpBaseOfImage, 0)) |
| dbg_printf("couldn't load main module (%lx)\n", GetLastError()); |
| |
| 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; |
| } |
| tgt_process_active_close_process(dbg_curr_process, FALSE); |
| dbg_printf("Process of pid=0x%08lx has terminated\n", de->dwProcessId); |
| 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; |
| } |
| fetch_module_name(de->u.LoadDll.lpImageName, |
| de->u.LoadDll.fUnicode, |
| de->u.LoadDll.lpBaseOfDll, |
| buffer, sizeof(buffer), FALSE); |
| |
| 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); |
| 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, |
| 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_curr_thread->in_exception) |
| { |
| ADDRESS64 addr; |
| char hexbuf[MAX_OFFSET_TO_STR_LEN]; |
| |
| dbg_exception_epilog(); |
| memory_get_current_pc(&addr); |
| WINE_TRACE("Exiting debugger PC=%s mode=%d count=%d\n", |
| memory_offset_to_string(hexbuf, addr.Offset, 0), |
| 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); |
| } |
| |
| static void wait_exception(void) |
| { |
| DEBUG_EVENT de; |
| |
| while (dbg_curr_process && WaitForDebugEvent(&de, INFINITE)) |
| { |
| if (dbg_handle_debug_event(&de)) break; |
| } |
| dbg_interactiveP = TRUE; |
| } |
| |
| void dbg_wait_next_exception(DWORD cont, int count, int mode) |
| { |
| ADDRESS64 addr; |
| char hexbuf[MAX_OFFSET_TO_STR_LEN]; |
| |
| if (cont == DBG_CONTINUE) |
| { |
| dbg_curr_thread->exec_count = count; |
| dbg_curr_thread->exec_mode = mode; |
| } |
| dbg_resume_debuggee(cont); |
| |
| wait_exception(); |
| if (!dbg_curr_process) return; |
| |
| memory_get_current_pc(&addr); |
| WINE_TRACE("Entering debugger PC=%s mode=%d count=%d\n", |
| memory_offset_to_string(hexbuf, addr.Offset, 0), |
| dbg_curr_thread->exec_mode, |
| dbg_curr_thread->exec_count); |
| } |
| |
| void dbg_active_wait_for_first_exception(void) |
| { |
| dbg_interactiveP = FALSE; |
| /* wait for first exception */ |
| wait_exception(); |
| } |
| |
| 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(&be_process_active_io, dbg_curr_pid, 0))) return FALSE; |
| dbg_curr_process->active_debuggee = TRUE; |
| |
| 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 |
| { |
| if (!dbg_last_cmd_line) |
| { |
| dbg_printf("Cannot find previously used command line.\n"); |
| return; |
| } |
| dbg_start_debuggee(dbg_last_cmd_line); |
| dbg_active_wait_for_first_exception(); |
| source_list_from_addr(NULL, 0); |
| } |
| } |
| |
| static BOOL str2int(const char* str, DWORD* val) |
| { |
| char* ptr; |
| |
| *val = strtol(str, &ptr, 10); |
| return str < ptr && !*ptr; |
| } |
| |
| |
| /****************************************************************** |
| * dbg_active_attach |
| * |
| * Tries to attach to a running process |
| * Handles the <pid> or <pid> <evt> forms |
| */ |
| enum dbg_start dbg_active_attach(int argc, char* argv[]) |
| { |
| DWORD pid, evt; |
| |
| /* try the form <myself> pid */ |
| if (argc == 1 && str2int(argv[0], &pid) && pid != 0) |
| { |
| if (!dbg_attach_debuggee(pid, FALSE)) |
| return start_error_init; |
| } |
| /* try the form <myself> pid evt (Win32 JIT debugger) */ |
| else if (argc == 2 && str2int(argv[0], &pid) && pid != 0 && |
| str2int(argv[1], &evt) && evt != 0) |
| { |
| if (!dbg_attach_debuggee(pid, TRUE)) |
| { |
| /* don't care about result */ |
| SetEvent((HANDLE)evt); |
| return start_error_init; |
| } |
| if (!SetEvent((HANDLE)evt)) |
| { |
| WINE_ERR("Invalid event handle: %lx\n", evt); |
| return start_error_init; |
| } |
| CloseHandle((HANDLE)evt); |
| } |
| else return start_error_parse; |
| |
| dbg_curr_pid = pid; |
| return start_ok; |
| } |
| |
| /****************************************************************** |
| * dbg_active_launch |
| * |
| * Launches a debuggee (with its arguments) from argc/argv |
| */ |
| enum dbg_start dbg_active_launch(int argc, char* argv[]) |
| { |
| int i, len; |
| LPSTR cmd_line; |
| |
| if (argc == 0) return start_error_parse; |
| |
| if (!(cmd_line = HeapAlloc(GetProcessHeap(), 0, len = 1))) |
| { |
| oom_leave: |
| dbg_printf("Out of memory\n"); |
| return start_error_init; |
| } |
| cmd_line[0] = '\0'; |
| |
| for (i = 0; i < argc; i++) |
| { |
| len += strlen(argv[i]) + 1; |
| if (!(cmd_line = HeapReAlloc(GetProcessHeap(), 0, cmd_line, len))) |
| goto oom_leave; |
| strcat(cmd_line, argv[i]); |
| cmd_line[len - 2] = ' '; |
| cmd_line[len - 1] = '\0'; |
| } |
| |
| if (!dbg_start_debuggee(cmd_line)) |
| { |
| HeapFree(GetProcessHeap(), 0, cmd_line); |
| return start_error_init; |
| } |
| HeapFree(GetProcessHeap(), 0, dbg_last_cmd_line); |
| dbg_last_cmd_line = cmd_line; |
| return start_ok; |
| } |
| |
| /****************************************************************** |
| * dbg_active_auto |
| * |
| * Starts (<pid> or <pid> <evt>) in automatic mode |
| */ |
| enum dbg_start dbg_active_auto(int argc, char* argv[]) |
| { |
| HANDLE hFile; |
| enum dbg_start ds = start_error_parse; |
| |
| if (!strcmp(argv[0], "--auto")) |
| { |
| /* auto mode */ |
| argc--; argv++; |
| ds = dbg_active_attach(argc, argv); |
| if (ds != start_ok) return ds; |
| hFile = parser_generate_command_file("echo Modules:", "info share", |
| "echo Threads:", "info threads", |
| NULL); |
| } |
| else if (!strcmp(argv[0], "--minidump")) |
| { |
| const char* file = NULL; |
| char tmp[8 + 1 + MAX_PATH]; /* minidump <file> */ |
| |
| argc--; argv++; |
| /* hard stuff now ; we can get things like: |
| * --minidump <pid> 1 arg |
| * --minidump <pid> <evt> 2 args |
| * --minidump <file> <pid> 2 args |
| * --minidump <file> <pid> <evt> 3 args |
| */ |
| switch (argc) |
| { |
| case 1: |
| ds = dbg_active_attach(argc, argv); |
| break; |
| case 2: |
| if ((ds = dbg_active_attach(argc, argv)) != start_ok) |
| { |
| file = argv[0]; |
| ds = dbg_active_attach(argc - 1, argv + 1); |
| } |
| break; |
| case 3: |
| file = argv[0]; |
| ds = dbg_active_attach(argc - 1, argv + 1); |
| break; |
| default: |
| return start_error_parse; |
| } |
| if (ds != start_ok) return ds; |
| memcpy(tmp, "minidump \"", 10); |
| if (!file) |
| { |
| char path[MAX_PATH]; |
| |
| GetTempPath(sizeof(path), path); |
| GetTempFileName(path, "WD", 0, tmp + 10); |
| } |
| else strcpy(tmp + 10, file); |
| strcat(tmp, "\""); |
| if (!file) |
| { |
| /* FIXME: should generate unix name as well */ |
| dbg_printf("Capturing program state in %s\n", tmp + 9); |
| } |
| hFile = parser_generate_command_file(tmp, NULL); |
| } |
| else return start_error_parse; |
| if (hFile == INVALID_HANDLE_VALUE) return start_error_parse; |
| |
| if (dbg_curr_process->active_debuggee) |
| dbg_active_wait_for_first_exception(); |
| |
| dbg_interactiveP = TRUE; |
| parser_handle(hFile); |
| |
| return start_ok; |
| } |
| |
| static BOOL tgt_process_active_close_process(struct dbg_process* pcs, BOOL kill) |
| { |
| if (pcs == dbg_curr_process) |
| { |
| /* 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); |
| if (dbg_curr_thread->in_exception) |
| { |
| SetThreadContext(dbg_curr_thread->handle, &dbg_context); |
| ContinueDebugEvent(dbg_curr_pid, dbg_curr_tid, DBG_CONTINUE); |
| } |
| if (!kill && !DebugActiveProcessStop(dbg_curr_pid)) return FALSE; |
| } |
| SymCleanup(pcs->handle); |
| dbg_del_process(pcs); |
| |
| return TRUE; |
| } |
| |
| static struct be_process_io be_process_active_io = |
| { |
| tgt_process_active_close_process, |
| ReadProcessMemory, |
| WriteProcessMemory, |
| }; |
