#ifndef WIN32_LEAN_AND_MEAN #define WIN32_LEAN_AND_MEAN #endif #include #include #include #include #include #include #include #define DUMP_FOLDER "minidumps" #define APPNAME "SDLPROCDUMP" #define PRODCUMP_MIN(A,B) (((A) < (B)) ? (A) : (B)) #if defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__) ||defined( __i386) || defined(_M_IX86) #define SDLPROCDUMP_CPU_X86 1 #elif defined(__amd64__) || defined(__amd64) || defined(__x86_64__) || defined(__x86_64) || defined(_M_X64) || defined(_M_AMD64) #define SDLPROCDUMP_CPU_X64 1 #elif defined(__aarch64__) || defined(_M_ARM64) #define SDLPROCDUMP_CPU_ARM64 1 #elif defined(__arm__) || defined(_M_ARM) #define SDLPROCDUMP_CPU_ARM32 1 #endif #if defined(SDLPROCDUMP_CPU_X86) || defined(SDLPROCDUMP_CPU_X64) || defined(SDLPROCDUMP_CPU_ARM32) || defined(SDLPROCDUMP_CPU_ARM64) #define SDLPROCDUMP_PRINTSTACK #else #pragma message("Unsupported architecture: don't know how to StackWalk") #endif #ifndef EXCEPTION_SOFTWARE_ORIGINATE #define EXCEPTION_SOFTWARE_ORIGINATE 0x80 #endif static void printf_message(const char *format, ...) { va_list ap; fprintf(stderr, "[" APPNAME "] "); va_start(ap, format); vfprintf(stderr, format, ap); va_end(ap); fprintf(stderr, "\n"); } static void printf_windows_message(const char *format, ...) { va_list ap; char win_msg[512]; size_t win_msg_len; FormatMessageA( FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, GetLastError(), MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), win_msg, sizeof(win_msg)/sizeof(*win_msg), NULL); win_msg_len = strlen(win_msg); while (win_msg[win_msg_len-1] == '\r' || win_msg[win_msg_len-1] == '\n' || win_msg[win_msg_len-1] == ' ') { win_msg[win_msg_len-1] = '\0'; win_msg_len--; } fprintf(stderr, "[" APPNAME "] "); va_start(ap, format); vfprintf(stderr, format, ap); va_end(ap); fprintf(stderr, " (%s)\n", win_msg); } struct { HMODULE module; BOOL (WINAPI *pSymInitialize)(HANDLE hProcess, PCSTR UserSearchPath, BOOL fInvadeProcess); BOOL (WINAPI *pSymCleanup)(HANDLE hProcess); BOOL (WINAPI *pMiniDumpWriteDump)( HANDLE hProcess, DWORD ProcessId, HANDLE hFile, MINIDUMP_TYPE DumpType, PMINIDUMP_EXCEPTION_INFORMATION ExceptionParam, PMINIDUMP_USER_STREAM_INFORMATION UserStreamParam, PMINIDUMP_CALLBACK_INFORMATION CallbackParam); BOOL (WINAPI *pSymFromAddr)(HANDLE hProcess, DWORD64 Address, PDWORD64 Displacement, PSYMBOL_INFO Symbol); BOOL (WINAPI *pSymGetLineFromAddr64)(HANDLE hProcess, DWORD64 qwAddr, PDWORD pdwDisplacement, PIMAGEHLP_LINE64 Line); BOOL (WINAPI *pStackWalk64)(DWORD MachineType, HANDLE hProcess, HANDLE hThread, LPSTACKFRAME64 StackFrame, PVOID ContextRecord, PREAD_PROCESS_MEMORY_ROUTINE64 ReadMemoryRoutine, PFUNCTION_TABLE_ACCESS_ROUTINE64 FunctionTableAccessRoutine, PGET_MODULE_BASE_ROUTINE64 GetModuleBaseRoutine, PTRANSLATE_ADDRESS_ROUTINE64 TranslateAddress); PVOID (WINAPI *pSymFunctionTableAccess64)(HANDLE hProcess, DWORD64 AddrBase); DWORD64 (WINAPI *pSymGetModuleBase64)(HANDLE hProcess, DWORD64 qwAddr); BOOL (WINAPI *pSymGetModuleInfo64)(HANDLE hProcess, DWORD64 qwAddr, PIMAGEHLP_MODULE64 ModuleInfo); BOOL (WINAPI *pSymRefreshModuleList)(HANDLE hProcess); } dyn_dbghelp; static void load_dbghelp(void) { if (dyn_dbghelp.module) { return; } dyn_dbghelp.module = LoadLibraryA("dbghelp.dll"); if (!dyn_dbghelp.module) { printf_message("Failed to load dbghelp.dll"); goto failed; } dyn_dbghelp.pSymInitialize = (void *)GetProcAddress(dyn_dbghelp.module, "SymInitialize"); dyn_dbghelp.pSymCleanup = (void *)GetProcAddress(dyn_dbghelp.module, "SymCleanup"); dyn_dbghelp.pMiniDumpWriteDump = (void *)GetProcAddress(dyn_dbghelp.module, "MiniDumpWriteDump"); dyn_dbghelp.pSymFromAddr = (void *)GetProcAddress(dyn_dbghelp.module, "SymFromAddr"); dyn_dbghelp.pStackWalk64 = (void *)GetProcAddress(dyn_dbghelp.module, "StackWalk64"); dyn_dbghelp.pSymGetLineFromAddr64 = (void *)GetProcAddress(dyn_dbghelp.module, "SymGetLineFromAddr64"); dyn_dbghelp.pSymFunctionTableAccess64 = (void *)GetProcAddress(dyn_dbghelp.module, "SymFunctionTableAccess64"); dyn_dbghelp.pSymGetModuleBase64 = (void *)GetProcAddress(dyn_dbghelp.module, "SymGetModuleBase64"); dyn_dbghelp.pSymGetModuleInfo64 = (void *)GetProcAddress(dyn_dbghelp.module, "SymGetModuleInfo64"); dyn_dbghelp.pSymRefreshModuleList = (void *)GetProcAddress(dyn_dbghelp.module, "SymRefreshModuleList"); return; failed: if (dyn_dbghelp.module) { FreeLibrary(dyn_dbghelp.module); dyn_dbghelp.module = NULL; } } static void unload_dbghelp(void) { if (!dyn_dbghelp.module) { return; } FreeLibrary(dyn_dbghelp.module); memset(&dyn_dbghelp, 0, sizeof(dyn_dbghelp)); } #define FOREACH_EXCEPTION_CODES(X) \ X(EXCEPTION_ACCESS_VIOLATION) \ X(EXCEPTION_DATATYPE_MISALIGNMENT) \ X(EXCEPTION_BREAKPOINT) \ X(EXCEPTION_SINGLE_STEP) \ X(EXCEPTION_ARRAY_BOUNDS_EXCEEDED) \ X(EXCEPTION_FLT_DENORMAL_OPERAND) \ X(EXCEPTION_FLT_DIVIDE_BY_ZERO) \ X(EXCEPTION_FLT_INEXACT_RESULT) \ X(EXCEPTION_FLT_INVALID_OPERATION) \ X(EXCEPTION_FLT_OVERFLOW) \ X(EXCEPTION_FLT_STACK_CHECK) \ X(EXCEPTION_FLT_UNDERFLOW) \ X(EXCEPTION_INT_DIVIDE_BY_ZERO) \ X(EXCEPTION_INT_OVERFLOW) \ X(EXCEPTION_PRIV_INSTRUCTION) \ X(EXCEPTION_IN_PAGE_ERROR) \ X(EXCEPTION_ILLEGAL_INSTRUCTION) \ X(EXCEPTION_NONCONTINUABLE_EXCEPTION) \ X(EXCEPTION_STACK_OVERFLOW) \ X(EXCEPTION_INVALID_DISPOSITION) \ X(EXCEPTION_GUARD_PAGE) \ X(EXCEPTION_INVALID_HANDLE) \ X(STATUS_HEAP_CORRUPTION) #define FOREACH_EXCEPTION_FLAGS(X) \ X(EXCEPTION_NONCONTINUABLE) \ X(EXCEPTION_UNWINDING) \ X(EXCEPTION_EXIT_UNWIND) \ X(EXCEPTION_STACK_INVALID) \ X(EXCEPTION_NESTED_CALL) \ X(EXCEPTION_TARGET_UNWIND) \ X(EXCEPTION_COLLIDED_UNWIND) \ X(EXCEPTION_SOFTWARE_ORIGINATE) static const char *exceptionCode_to_string(DWORD dwCode) { #define SWITCH_CODE_STR(V) case V: return #V; switch (dwCode) { case 0xe06d7363: return "MS Visual C++ Exception"; FOREACH_EXCEPTION_CODES(SWITCH_CODE_STR) default: { return "unknown"; } } #undef SWITCH_CODE_STR } static const char *exceptionFlags_to_string(DWORD dwFlags, char *buffer, size_t buffer_length) { buffer[0] = '\0'; #define APPEND_OR_STR(CODE) \ if (dwFlags & (CODE)) { \ if (buffer[0]) { \ strcat_s(buffer, buffer_length, "|"); \ } \ strcat_s(buffer, buffer_length, #CODE); \ } FOREACH_EXCEPTION_FLAGS(APPEND_OR_STR) #undef APPEND_OR_STR return buffer; } static BOOL IsCXXException(DWORD dwCode) { /* https://devblogs.microsoft.com/oldnewthing/20100730-00/?p=13273 */ return dwCode == 0xe06d7363; /* FOURCC(0xe0, 'm', 's', 'c') */ } static BOOL IsFatalExceptionCode(DWORD dwCode) { switch (dwCode) { case EXCEPTION_ACCESS_VIOLATION: case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: case EXCEPTION_IN_PAGE_ERROR: case EXCEPTION_ILLEGAL_INSTRUCTION: case EXCEPTION_INT_DIVIDE_BY_ZERO: case EXCEPTION_STACK_OVERFLOW: case STATUS_HEAP_CORRUPTION: case STATUS_STACK_BUFFER_OVERRUN: case EXCEPTION_GUARD_PAGE: case EXCEPTION_INVALID_HANDLE: return TRUE; default: return FALSE; } } static const char *get_simple_basename(const char *path) { const char *pos = strrchr(path, '\\'); if (pos) { return pos + 1; } pos = strrchr(path, '/'); if (pos) { return pos + 1; } return path; } static void write_minidump(const char *child_file_path, const LPPROCESS_INFORMATION process_information, DWORD dwThreadId, PEXCEPTION_RECORD exception_record, PCONTEXT context) { BOOL success; char dump_file_path[MAX_PATH]; char child_file_name[64]; EXCEPTION_POINTERS exception_pointers; HANDLE hFile = INVALID_HANDLE_VALUE; MINIDUMP_EXCEPTION_INFORMATION minidump_exception_information; SYSTEMTIME system_time; if (!dyn_dbghelp.pMiniDumpWriteDump) { printf_message("Cannot find pMiniDumpWriteDump in dbghelp.dll: no minidump"); return; } success = CreateDirectoryA(DUMP_FOLDER, NULL); if (!success && GetLastError() != ERROR_ALREADY_EXISTS) { printf_windows_message("Failed to create minidump directory"); goto post_dump; } _splitpath_s(child_file_path, NULL, 0, NULL, 0, child_file_name, sizeof(child_file_name), NULL, 0); GetLocalTime(&system_time); snprintf(dump_file_path, sizeof(dump_file_path), "minidumps/%s_%04d-%02d-%02d_%02d-%02d-%02d.dmp", child_file_name, system_time.wYear, system_time.wMonth, system_time.wDay, system_time.wHour, system_time.wMinute, system_time.wSecond); printf_message(""); printf_message("Writing minidump to \"%s\"", dump_file_path); hFile = CreateFileA( dump_file_path, GENERIC_WRITE, FILE_SHARE_WRITE, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); if (hFile == INVALID_HANDLE_VALUE) { printf_windows_message("Failed to open file for minidump"); goto post_dump; } memset(&exception_pointers, 0, sizeof(exception_pointers)); exception_pointers.ContextRecord = context; exception_pointers.ExceptionRecord = exception_record; minidump_exception_information.ClientPointers = FALSE; minidump_exception_information.ExceptionPointers = &exception_pointers; minidump_exception_information.ThreadId = dwThreadId; success = dyn_dbghelp.pMiniDumpWriteDump( process_information->hProcess, /* HANDLE hProcess */ process_information->dwProcessId, /* DWORD ProcessId */ hFile, /* HANDLE hFile */ MiniDumpWithFullMemory, /* MINIDUMP_TYPE DumpType */ &minidump_exception_information, /* PMINIDUMP_EXCEPTION_INFORMATION ExceptionParam */ NULL, /* PMINIDUMP_USER_STREAM_INFORMATION UserStreamParam */ NULL); /* PMINIDUMP_CALLBACK_INFORMATION CallbackParam */ if (!success) { printf_windows_message("Failed to write minidump"); } post_dump: if (hFile != INVALID_HANDLE_VALUE) { CloseHandle(hFile); } } static void print_stacktrace(const LPPROCESS_INFORMATION process_information, LPVOID address, PCONTEXT context) { STACKFRAME64 stack_frame; DWORD machine_type; if (!context) { printf_message("Cannot create a stacktrace without a context"); return; } if (!dyn_dbghelp.pStackWalk64) { printf_message("Cannot find StackWalk64 in dbghelp.dll: no stacktrace"); return; } if (!dyn_dbghelp.pSymFunctionTableAccess64) { printf_message("Cannot find SymFunctionTableAccess64 in dbghelp.dll: no stacktrace"); return; } if (!dyn_dbghelp.pSymGetModuleBase64) { printf_message("Cannot find SymGetModuleBase64 in dbghelp.dll: no stacktrace"); return; } if (!dyn_dbghelp.pSymFromAddr) { printf_message("Cannot find pSymFromAddr in dbghelp.dll: no stacktrace"); return; } if (!dyn_dbghelp.pSymGetLineFromAddr64) { printf_message("Cannot find SymGetLineFromAddr64 in dbghelp.dll: no stacktrace"); return; } if (!dyn_dbghelp.pSymGetModuleInfo64) { printf_message("Cannot find SymGetModuleInfo64 in dbghelp.dll: no stacktrace"); return; } if (!dyn_dbghelp.pSymRefreshModuleList || !dyn_dbghelp.pSymRefreshModuleList(process_information->hProcess)) { printf_windows_message("SymRefreshModuleList failed: maybe no stacktrace"); } memset(&stack_frame, 0, sizeof(stack_frame)); stack_frame.AddrPC.Mode = AddrModeFlat; stack_frame.AddrFrame.Mode = AddrModeFlat; stack_frame.AddrStack.Mode = AddrModeFlat; #if defined(SDLPROCDUMP_CPU_X86) machine_type = IMAGE_FILE_MACHINE_I386; stack_frame.AddrFrame.Offset = context->Ebp; stack_frame.AddrStack.Offset = context->Esp; stack_frame.AddrPC.Offset = context->Eip; #elif defined(SDLPROCDUMP_CPU_X64) machine_type = IMAGE_FILE_MACHINE_AMD64; stack_frame.AddrFrame.Offset = context->Rbp; stack_frame.AddrStack.Offset = context->Rsp; stack_frame.AddrPC.Offset = context->Rip; #elif defined(SDLPROCDUMP_CPU_ARM32) machine_type = IMAGE_FILE_MACHINE_ARM; stack_frame.AddrFrame.Offset = context->Lr; stack_frame.AddrStack.Offset = context->Sp; stack_frame.AddrPC.Offset = context->Pc; #elif defined(SDLPROCDUMP_CPU_ARM64) machine_type = IMAGE_FILE_MACHINE_ARM64; stack_frame.AddrFrame.Offset = context->Fp; stack_frame.AddrStack.Offset = context->Sp; stack_frame.AddrPC.Offset = context->Pc; #endif while (dyn_dbghelp.pStackWalk64(machine_type, /* DWORD MachineType */ process_information->hProcess, /* HANDLE hProcess */ process_information->hThread, /* HANDLE hThread */ &stack_frame, /* LPSTACKFRAME64 StackFrame */ context, /* PVOID ContextRecord */ NULL, /* PREAD_PROCESS_MEMORY_ROUTINE64 ReadMemoryRoutine */ dyn_dbghelp.pSymFunctionTableAccess64, /* PFUNCTION_TABLE_ACCESS_ROUTINE64 FunctionTableAccessRoutine */ dyn_dbghelp.pSymGetModuleBase64, /* PGET_MODULE_BASE_ROUTINE64 GetModuleBaseRoutine */ NULL)) { /* PTRANSLATE_ADDRESS_ROUTINE64 TranslateAddress */ IMAGEHLP_MODULE64 module_info; union { char buffer[sizeof(SYMBOL_INFO) + MAX_SYM_NAME * sizeof(CHAR)]; SYMBOL_INFO symbol_info; } symbol; DWORD64 dwDisplacement; DWORD lineColumn = 0; IMAGEHLP_LINE64 line; const char *image_file_name; const char *symbol_name; const char *file_name; char line_number[16]; if (stack_frame.AddrPC.Offset == stack_frame.AddrReturn.Offset) { printf_message("PC == Return Address => Possible endless callstack"); break; } memset(&module_info, 0, sizeof(module_info)); module_info.SizeOfStruct = sizeof(module_info); if (!dyn_dbghelp.pSymGetModuleInfo64(process_information->hProcess, stack_frame.AddrPC.Offset, &module_info)) { image_file_name = "?"; } else { image_file_name = get_simple_basename(module_info.ImageName); } memset(&symbol, 0, sizeof(symbol)); symbol.symbol_info.SizeOfStruct = sizeof(symbol.symbol_info); symbol.symbol_info.MaxNameLen = MAX_SYM_NAME; if (!dyn_dbghelp.pSymFromAddr(process_information->hProcess, (DWORD64)(uintptr_t)stack_frame.AddrPC.Offset, &dwDisplacement, &symbol.symbol_info)) { symbol_name = "???"; dwDisplacement = 0; } else { symbol_name = symbol.symbol_info.Name; } line.SizeOfStruct = sizeof(line); if (!dyn_dbghelp.pSymGetLineFromAddr64(process_information->hProcess, (DWORD64)(uintptr_t)stack_frame.AddrPC.Offset, &lineColumn, &line)) { file_name = ""; line_number[0] = '\0'; } else { file_name = line.FileName; snprintf(line_number, sizeof(line_number), "Line %u", (unsigned int)line.LineNumber); } printf_message("%s!%s+0x%x %s %s", image_file_name, symbol_name, dwDisplacement, file_name, line_number); } } static PCONTEXT FillInThreadContext(LPPROCESS_INFORMATION process_information, PCONTEXT context_buffer) { HANDLE thread_handle = NULL; thread_handle = OpenThread(THREAD_ALL_ACCESS, FALSE, process_information->dwThreadId); if (!thread_handle) { printf_windows_message("OpenThread failed: no stacktrace"); return NULL; } memset(context_buffer, 0, sizeof(*context_buffer)); context_buffer->ContextFlags = CONTEXT_ALL; if (!GetThreadContext(thread_handle, context_buffer)) { printf_windows_message("GetThreadContext failed: no stacktrace"); CloseHandle(thread_handle); return NULL; } CloseHandle(thread_handle); return context_buffer; } static void GetMSCExceptionName(HANDLE hProcess, ULONG_PTR *parameters, DWORD count_parameters, char *buffer, size_t buffer_size) { #define FIXUP_DWORD_POINTER(ADDR) ((sizeof(void *) == 8) ? (parameters[3] + (ADDR)) : (ADDR)) #define CHECKED_ReadProcessMemory(PROCESS, ADDRESS, BUFFER, COUNT, WHAT) \ do { \ SIZE_T actual_count; \ BOOL res = ReadProcessMemory((PROCESS), (ADDRESS), (BUFFER), (COUNT), &actual_count); \ if (!res) { \ printf_windows_message(WHAT ": ReadProcessMemory failed"); \ strncpy_s(buffer, buffer_size, "", buffer_size); \ return; \ } \ if ((COUNT) != (actual_count)) { \ printf_message(WHAT ": ReadProcessMemory did not read enough data actual=%lu expected=%lu", \ (unsigned long) (actual_count), (unsigned long) (COUNT)); \ strncpy_s(buffer, buffer_size, "", buffer_size); \ return; \ } \ } while (0) DWORD depth0; char *ptr_depth0; DWORD depth1; char *ptr_depth1; DWORD depth2; char *ptr_depth2; CHECKED_ReadProcessMemory(hProcess, (void *)(parameters[2] + 3 * sizeof(DWORD)), &depth0, sizeof(depth0), "depth 0"); ptr_depth0 = (char *)FIXUP_DWORD_POINTER(depth0); CHECKED_ReadProcessMemory(hProcess, ptr_depth0 + 1 * sizeof(DWORD), &depth1, sizeof(depth1), "depth 1"); ptr_depth1 = (char *)FIXUP_DWORD_POINTER(depth1); CHECKED_ReadProcessMemory(hProcess, ptr_depth1 + 1 * sizeof(DWORD), &depth2, sizeof(depth2), "depth 2"); ptr_depth2 = (char *)FIXUP_DWORD_POINTER(depth2); CHECKED_ReadProcessMemory(hProcess, ptr_depth2 + 2 * sizeof(void*), buffer, buffer_size, "data"); buffer[buffer_size - 1] = '\0'; #undef FIXUP_DWORD_POINTER #undef CHECKED_ReadProcessMemory } static void log_usage(const char *argv0) { fprintf(stderr, "Usage: %s [--help] [--debug-stream] [--] PROGRAM [ARG1 [ARG2 [ARG3 ... ]]]\n", argv0); } int main(int argc, char *argv[]) { int i; int cmd_start; size_t command_line_len = 0; char *command_line; STARTUPINFOA startup_info; PROCESS_INFORMATION process_information; BOOL success; BOOL debugger_present; DWORD exit_code; DWORD creation_flags; BOOL log_debug_stream = FALSE; cmd_start = -1; for (i = 1; i < argc; i++) { if (strcmp(argv[i], "--") == 0) { cmd_start = i + 1; break; } else if (strcmp(argv[i], "--debug-stream") == 0) { log_debug_stream = TRUE; continue; } else if (strcmp(argv[i], "--help") == 0) { log_usage(argv[0]); return 0; } else { cmd_start = i; break; } } if (cmd_start < 0 || cmd_start >= argc) { log_usage(argv[0]); return 1; } for (i = cmd_start; i < argc; i++) { command_line_len += strlen(argv[i]) + 1; } command_line = malloc(command_line_len + 1); if (!command_line) { printf_message("Failed to allocate memory for command line"); return 1; } command_line[0] = '\0'; for (i = cmd_start; i < argc; i++) { strcat_s(command_line, command_line_len, argv[i]); if (i != argc - 1) { strcat_s(command_line, command_line_len, " "); } } memset(&startup_info, 0, sizeof(startup_info)); startup_info.cb = sizeof(startup_info); debugger_present = IsDebuggerPresent(); creation_flags = NORMAL_PRIORITY_CLASS; if (!debugger_present) { creation_flags |= DEBUG_PROCESS | DEBUG_ONLY_THIS_PROCESS; } success = CreateProcessA( argv[cmd_start], /* LPCSTR lpApplicationName, */ command_line, /* LPSTR lpCommandLine, */ NULL, /* LPSECURITY_ATTRIBUTES lpProcessAttributes, */ NULL, /* LPSECURITY_ATTRIBUTES lpThreadAttributes, */ TRUE, /* BOOL bInheritHandles, */ creation_flags, /* DWORD dwCreationFlags, */ NULL, /* LPVOID lpEnvironment, */ NULL, /* LPCSTR lpCurrentDirectory, */ &startup_info, /* LPSTARTUPINFOA lpStartupInfo, */ &process_information); /* LPPROCESS_INFORMATION lpProcessInformation */ if (!success) { printf_windows_message("Failed to start application \"%s\"", argv[cmd_start]); return 1; } if (debugger_present) { WaitForSingleObject(process_information.hProcess, INFINITE); } else { int process_alive = 1; DEBUG_EVENT event; while (process_alive) { DWORD continue_status = DBG_CONTINUE; success = WaitForDebugEvent(&event, INFINITE); if (!success) { printf_windows_message("Failed to get a debug event"); return 1; } switch (event.dwDebugEventCode) { case OUTPUT_DEBUG_STRING_EVENT: { if (log_debug_stream) { SIZE_T bytes_read = 0; union { char char_buffer[512]; WCHAR wchar_buffer[256]; } buffer; if (ReadProcessMemory(process_information.hProcess, event.u.DebugString.lpDebugStringData, buffer.char_buffer, PRODCUMP_MIN(sizeof(buffer), event.u.DebugString.nDebugStringLength), &bytes_read) && bytes_read) { if (event.u.DebugString.fUnicode) { size_t len = bytes_read / 2; buffer.wchar_buffer[255] = '\0'; while (len > 0 && (buffer.wchar_buffer[len - 1] == '\0' || buffer.wchar_buffer[len - 1] == '\n' || buffer.wchar_buffer[len - 1] == '\r')) { buffer.wchar_buffer[len - 1] = '\0'; len -= 1; } if (len > 0) { printf("[" APPNAME "] (debug) %S\n", buffer.wchar_buffer); } } else { size_t len = bytes_read; buffer.char_buffer[511] = '\0'; while (len > 0 && (buffer.char_buffer[len - 1] == '\0' || buffer.char_buffer[len - 1] == '\n' || buffer.char_buffer[len - 1] == '\r')) { buffer.char_buffer[len - 1] = '\0'; len -= 1; } if (len > 0) { printf("[" APPNAME "] (debug) %s\n", buffer.char_buffer); } } } } break; } case EXCEPTION_DEBUG_EVENT: { const BOOL cxx_exception = IsCXXException(event.u.Exception.ExceptionRecord.ExceptionCode); const BOOL is_fatal = !cxx_exception && (IsFatalExceptionCode(event.u.Exception.ExceptionRecord.ExceptionCode) || (event.u.Exception.ExceptionRecord.ExceptionFlags & EXCEPTION_NONCONTINUABLE)); if (cxx_exception || is_fatal) { char flag_buffer[256]; printf_message("EXCEPTION_DEBUG_EVENT"); printf_message(" ExceptionCode: 0x%08lx (%s)", event.u.Exception.ExceptionRecord.ExceptionCode, exceptionCode_to_string(event.u.Exception.ExceptionRecord.ExceptionCode)); printf_message(" ExceptionFlags: 0x%08lx (%s)", event.u.Exception.ExceptionRecord.ExceptionFlags, exceptionFlags_to_string(event.u.Exception.ExceptionRecord.ExceptionFlags, flag_buffer, sizeof(flag_buffer))); printf_message(" FirstChance: %ld", event.u.Exception.dwFirstChance); printf_message(" ExceptionAddress: 0x%08lx", event.u.Exception.ExceptionRecord.ExceptionAddress); } if (cxx_exception) { char exception_name[256]; GetMSCExceptionName(process_information.hProcess, event.u.Exception.ExceptionRecord.ExceptionInformation, event.u.Exception.ExceptionRecord.NumberParameters, exception_name, sizeof(exception_name)); printf_message(" Exception name: %s", exception_name); } else if (is_fatal) { CONTEXT context_buffer; PCONTEXT context; printf_message(" (Non-continuable exception debug event)"); context = FillInThreadContext(&process_information, &context_buffer); write_minidump(argv[cmd_start], &process_information, event.dwThreadId, &event.u.Exception.ExceptionRecord, context); printf_message(""); #ifdef SDLPROCDUMP_PRINTSTACK print_stacktrace(&process_information, event.u.Exception.ExceptionRecord.ExceptionAddress, context); #else printf_message("No support for printing stacktrack for current architecture"); #endif DebugActiveProcessStop(event.dwProcessId); process_alive = FALSE; } continue_status = DBG_EXCEPTION_NOT_HANDLED; break; } case CREATE_PROCESS_DEBUG_EVENT: load_dbghelp(); if (!dyn_dbghelp.pSymInitialize) { printf_message("Cannot find pSymInitialize in dbghelp.dll: no stacktrace"); break; } /* Don't invade process on CI: downloading symbols will cause test timeouts */ if (!dyn_dbghelp.pSymInitialize(process_information.hProcess, NULL, FALSE)) { printf_windows_message("SymInitialize failed: no stacktrace"); break; } break; case EXIT_PROCESS_DEBUG_EVENT: if (event.dwProcessId == process_information.dwProcessId) { process_alive = 0; DebugActiveProcessStop(event.dwProcessId); } break; } success = ContinueDebugEvent(event.dwProcessId, event.dwThreadId, continue_status); if (!process_alive) { DebugActiveProcessStop(event.dwProcessId); } } } if (dyn_dbghelp.pSymCleanup) { dyn_dbghelp.pSymCleanup(process_information.hProcess); } unload_dbghelp(); exit_code = 1; success = GetExitCodeProcess(process_information.hProcess, &exit_code); if (!success) { printf_message("Failed to get process exit code"); return 1; } CloseHandle(process_information.hThread); CloseHandle(process_information.hProcess); return exit_code; }