static void doChild(int argc, char **argv)
{
struct child_blackbox blackbox;
const char *blackbox_file;
HANDLE parent;
DWORD ppid;
BOOL debug;
BOOL ret;
blackbox_file = argv[4];
sscanf(argv[3], "%08x", &ppid);
parent = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, ppid);
child_ok(!!parent, "OpenProcess failed, last error %#x.\n", GetLastError());
ret = pCheckRemoteDebuggerPresent(parent, &debug);
child_ok(ret, "CheckRemoteDebuggerPresent failed, last error %#x.\n", GetLastError());
child_ok(!debug, "Expected debug == 0, got %#x.\n", debug);
ret = DebugActiveProcess(ppid);
child_ok(ret, "DebugActiveProcess failed, last error %#x.\n", GetLastError());
ret = pCheckRemoteDebuggerPresent(parent, &debug);
child_ok(ret, "CheckRemoteDebuggerPresent failed, last error %#x.\n", GetLastError());
child_ok(debug, "Expected debug != 0, got %#x.\n", debug);
ret = pDebugActiveProcessStop(ppid);
child_ok(ret, "DebugActiveProcessStop failed, last error %#x.\n", GetLastError());
ret = pCheckRemoteDebuggerPresent(parent, &debug);
child_ok(ret, "CheckRemoteDebuggerPresent failed, last error %#x.\n", GetLastError());
child_ok(!debug, "Expected debug == 0, got %#x.\n", debug);
ret = CloseHandle(parent);
child_ok(ret, "CloseHandle failed, last error %#x.\n", GetLastError());
ret = pIsDebuggerPresent();
child_ok(ret, "Expected ret != 0, got %#x.\n", ret);
ret = pCheckRemoteDebuggerPresent(GetCurrentProcess(), &debug);
child_ok(ret, "CheckRemoteDebuggerPresent failed, last error %#x.\n", GetLastError());
child_ok(debug, "Expected debug != 0, got %#x.\n", debug);
if (pNtCurrentTeb)
{
pNtCurrentTeb()->Peb->BeingDebugged = FALSE;
ret = pIsDebuggerPresent();
child_ok(!ret, "Expected ret != 0, got %#x.\n", ret);
ret = pCheckRemoteDebuggerPresent(GetCurrentProcess(), &debug);
child_ok(ret, "CheckRemoteDebuggerPresent failed, last error %#x.\n", GetLastError());
child_ok(debug, "Expected debug != 0, got %#x.\n", debug);
pNtCurrentTeb()->Peb->BeingDebugged = TRUE;
}
blackbox.failures = child_failures;
save_blackbox(blackbox_file, &blackbox, sizeof(blackbox));
}
DWORD CrashExceptionHandler (qboolean iswatchdog, DWORD exceptionCode, LPEXCEPTION_POINTERS exceptionInfo)
{
char dumpPath[1024];
HANDLE hProc = GetCurrentProcess();
DWORD procid = GetCurrentProcessId();
HANDLE dumpfile;
HMODULE hDbgHelp;
MINIDUMPWRITEDUMP fnMiniDumpWriteDump;
HMODULE hKernel;
BOOL (WINAPI *pIsDebuggerPresent)(void);
DWORD (WINAPI *pSymSetOptions)(DWORD SymOptions);
BOOL (WINAPI *pSymInitialize)(HANDLE hProcess, PSTR UserSearchPath, BOOL fInvadeProcess);
BOOL (WINAPI *pSymFromAddr)(HANDLE hProcess, DWORD64 Address, PDWORD64 Displacement, PSYMBOL_INFO Symbol);
#ifdef _WIN64
#define DBGHELP_POSTFIX "64"
BOOL (WINAPI *pStackWalkX)(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 *pSymFunctionTableAccessX)(HANDLE hProcess, DWORD64 AddrBase);
DWORD64 (WINAPI *pSymGetModuleBaseX)(HANDLE hProcess, DWORD64 qwAddr);
BOOL (WINAPI *pSymGetLineFromAddrX)(HANDLE hProcess, DWORD64 qwAddr, PDWORD pdwDisplacement, PIMAGEHLP_LINE64 Line64);
BOOL (WINAPI *pSymGetModuleInfoX)(HANDLE hProcess, DWORD64 qwAddr, PIMAGEHLP_MODULE64 ModuleInfo);
#define STACKFRAMEX STACKFRAME64
#define IMAGEHLP_LINEX IMAGEHLP_LINE64
#define IMAGEHLP_MODULEX IMAGEHLP_MODULE64
#else
#define DBGHELP_POSTFIX ""
BOOL (WINAPI *pStackWalkX)(DWORD MachineType, HANDLE hProcess, HANDLE hThread, LPSTACKFRAME StackFrame, PVOID ContextRecord, PREAD_PROCESS_MEMORY_ROUTINE ReadMemoryRoutine, PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine, PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine, PTRANSLATE_ADDRESS_ROUTINE TranslateAddress);
PVOID (WINAPI *pSymFunctionTableAccessX)(HANDLE hProcess, DWORD AddrBase);
DWORD (WINAPI *pSymGetModuleBaseX)(HANDLE hProcess, DWORD dwAddr);
BOOL (WINAPI *pSymGetLineFromAddrX)(HANDLE hProcess, DWORD dwAddr, PDWORD pdwDisplacement, PIMAGEHLP_LINE Line);
BOOL (WINAPI *pSymGetModuleInfoX)(HANDLE hProcess, DWORD dwAddr, PIMAGEHLP_MODULE ModuleInfo);
#define STACKFRAMEX STACKFRAME
#define IMAGEHLP_LINEX IMAGEHLP_LINE
#define IMAGEHLP_MODULEX IMAGEHLP_MODULE
#endif
dllfunction_t debughelpfuncs[] =
{
{(void*)&pSymFromAddr, "SymFromAddr"},
{(void*)&pSymSetOptions, "SymSetOptions"},
{(void*)&pSymInitialize, "SymInitialize"},
{(void*)&pStackWalkX, "StackWalk"DBGHELP_POSTFIX},
{(void*)&pSymFunctionTableAccessX, "SymFunctionTableAccess"DBGHELP_POSTFIX},
{(void*)&pSymGetModuleBaseX, "SymGetModuleBase"DBGHELP_POSTFIX},
{(void*)&pSymGetLineFromAddrX, "SymGetLineFromAddr"DBGHELP_POSTFIX},
{(void*)&pSymGetModuleInfoX, "SymGetModuleInfo"DBGHELP_POSTFIX},
{NULL, NULL}
};
switch(exceptionCode)
{
case EXCEPTION_ACCESS_VIOLATION:
case EXCEPTION_DATATYPE_MISALIGNMENT:
case EXCEPTION_BREAKPOINT:
case EXCEPTION_SINGLE_STEP:
case EXCEPTION_ARRAY_BOUNDS_EXCEEDED:
case EXCEPTION_FLT_DENORMAL_OPERAND:
case EXCEPTION_FLT_DIVIDE_BY_ZERO:
case EXCEPTION_FLT_INEXACT_RESULT:
case EXCEPTION_FLT_INVALID_OPERATION:
case EXCEPTION_FLT_OVERFLOW:
case EXCEPTION_FLT_STACK_CHECK:
case EXCEPTION_FLT_UNDERFLOW:
case EXCEPTION_INT_DIVIDE_BY_ZERO:
case EXCEPTION_INT_OVERFLOW:
case EXCEPTION_PRIV_INSTRUCTION:
case EXCEPTION_IN_PAGE_ERROR:
case EXCEPTION_ILLEGAL_INSTRUCTION:
case EXCEPTION_NONCONTINUABLE_EXCEPTION:
case EXCEPTION_STACK_OVERFLOW:
case EXCEPTION_INVALID_DISPOSITION:
case EXCEPTION_GUARD_PAGE:
case EXCEPTION_INVALID_HANDLE:
// case EXCEPTION_POSSIBLE_DEADLOCK:
break;
default:
//because windows is a steaming pile of s***e, we have to ignore any software-generated exceptions, because most of them are not in fact fatal, *EVEN IF THEY CLAIM TO BE NON-CONTINUABLE*
return exceptionCode;
}
hKernel = LoadLibrary ("kernel32");
pIsDebuggerPresent = (void*)GetProcAddress(hKernel, "IsDebuggerPresent");
if (pIsDebuggerPresent && pIsDebuggerPresent())
return EXCEPTION_CONTINUE_SEARCH;
#ifdef GLQUAKE
GLVID_Crashed();
#endif
#if 1//ndef _MSC_VER
{
if (Sys_LoadLibrary("DBGHELP", debughelpfuncs))
{
STACKFRAMEX stack;
CONTEXT *pcontext = exceptionInfo->ContextRecord;
IMAGEHLP_LINEX line;
IMAGEHLP_MODULEX module;
struct
{
SYMBOL_INFO sym;
char name[1024];
} sym;
int frameno;
char stacklog[8192];
int logpos, logstart;
char *logline;
stacklog[logpos=0] = 0;
pSymInitialize(hProc, NULL, TRUE);
pSymSetOptions(SYMOPT_LOAD_LINES);
memset(&stack, 0, sizeof(stack));
#ifdef _WIN64
#define IMAGE_FILE_MACHINE_THIS IMAGE_FILE_MACHINE_AMD64
stack.AddrPC.Mode = AddrModeFlat;
stack.AddrPC.Offset = pcontext->Rip;
stack.AddrFrame.Mode = AddrModeFlat;
stack.AddrFrame.Offset = pcontext->Rbp;
stack.AddrStack.Mode = AddrModeFlat;
stack.AddrStack.Offset = pcontext->Rsp;
#else
#define IMAGE_FILE_MACHINE_THIS IMAGE_FILE_MACHINE_I386
stack.AddrPC.Mode = AddrModeFlat;
stack.AddrPC.Offset = pcontext->Eip;
stack.AddrFrame.Mode = AddrModeFlat;
stack.AddrFrame.Offset = pcontext->Ebp;
stack.AddrStack.Mode = AddrModeFlat;
stack.AddrStack.Offset = pcontext->Esp;
#endif
Q_strncpyz(stacklog+logpos, FULLENGINENAME " or dependancy has crashed. The following stack dump been copied to your windows clipboard.\n"
#ifdef _MSC_VER
"Would you like to generate a core dump too?\n"
#endif
"\n", sizeof(stacklog)-logpos);
logstart = logpos += strlen(stacklog+logpos);
//so I know which one it is
#if defined(DEBUG) || defined(_DEBUG)
#define BUILDDEBUGREL "Debug"
#else
#define BUILDDEBUGREL "Optimised"
#endif
#ifdef MINIMAL
#define BUILDMINIMAL "Min"
#else
#define BUILDMINIMAL ""
#endif
#if defined(GLQUAKE) && !defined(D3DQUAKE)
#define BUILDTYPE "GL"
#elif !defined(GLQUAKE) && defined(D3DQUAKE)
#define BUILDTYPE "D3D"
#else
#define BUILDTYPE "Merged"
#endif
Q_snprintfz(stacklog+logpos, sizeof(stacklog)-logpos, "Build: %s %s %s: %s\r\n", BUILDDEBUGREL, PLATFORM, BUILDMINIMAL BUILDTYPE, version_string());
logpos += strlen(stacklog+logpos);
for(frameno = 0; ; frameno++)
{
DWORD64 symdisp;
DWORD linedisp;
DWORD_PTR symaddr;
if (!pStackWalkX(IMAGE_FILE_MACHINE_THIS, hProc, GetCurrentThread(), &stack, pcontext, NULL, pSymFunctionTableAccessX, pSymGetModuleBaseX, NULL))
break;
memset(&module, 0, sizeof(module));
module.SizeOfStruct = sizeof(module);
pSymGetModuleInfoX(hProc, stack.AddrPC.Offset, &module);
memset(&line, 0, sizeof(line));
line.SizeOfStruct = sizeof(line);
symdisp = 0;
memset(&sym, 0, sizeof(sym));
sym.sym.MaxNameLen = sizeof(sym.name);
symaddr = stack.AddrPC.Offset;
sym.sym.SizeOfStruct = sizeof(sym.sym);
if (pSymFromAddr(hProc, symaddr, &symdisp, &sym.sym))
{
if (pSymGetLineFromAddrX(hProc, stack.AddrPC.Offset, &linedisp, &line))
logline = va("%-20s - %s:%i (%s)\r\n", sym.sym.Name, line.FileName, (int)line.LineNumber, module.LoadedImageName);
else
logline = va("%-20s+%#x (%s)\r\n", sym.sym.Name, (unsigned int)symdisp, module.LoadedImageName);
}
else
logline = va("0x%p (%s)\r\n", (void*)(DWORD_PTR)stack.AddrPC.Offset, module.LoadedImageName);
Q_strncpyz(stacklog+logpos, logline, sizeof(stacklog)-logpos);
logpos += strlen(stacklog+logpos);
if (logpos+1 >= sizeof(stacklog))
break;
}
Sys_Printf("%s", stacklog+logstart);
return EXCEPTION_EXECUTE_HANDLER;
}
else
{
Sys_Printf("We crashed.\nUnable to load dbghelp library. Stack info is not available\n");
return EXCEPTION_EXECUTE_HANDLER;
}
}
#endif
hDbgHelp = LoadLibrary ("DBGHELP");
if (hDbgHelp)
fnMiniDumpWriteDump = (MINIDUMPWRITEDUMP)GetProcAddress (hDbgHelp, "MiniDumpWriteDump");
else
fnMiniDumpWriteDump = NULL;
if (fnMiniDumpWriteDump)
{
if (MessageBox(NULL, "KABOOM! We crashed!\nBlame the monkey in the corner.\nI hope you saved your work.\nWould you like to take a dump now?", DISTRIBUTION " Sucks", MB_ICONSTOP|MB_YESNO) != IDYES)
{
if (pIsDebuggerPresent ())
{
//its possible someone attached a debugger while we were showing that message
return EXCEPTION_CONTINUE_SEARCH;
}
return EXCEPTION_EXECUTE_HANDLER;
}
/*take a dump*/
GetTempPath (sizeof(dumpPath)-16, dumpPath);
Q_strncatz(dumpPath, DISTRIBUTION"CrashDump.dmp", sizeof(dumpPath));
dumpfile = CreateFile (dumpPath, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
if (dumpfile)
{
MINIDUMP_EXCEPTION_INFORMATION crashinfo;
crashinfo.ClientPointers = TRUE;
crashinfo.ExceptionPointers = exceptionInfo;
crashinfo.ThreadId = GetCurrentThreadId ();
if (fnMiniDumpWriteDump(hProc, procid, dumpfile, MiniDumpWithIndirectlyReferencedMemory|MiniDumpWithDataSegs, &crashinfo, NULL, NULL))
{
CloseHandle(dumpfile);
MessageBox(NULL, va("You can find the crashdump at\n%s\nPlease send this file to someone.\n\nWarning: sensitive information (like your current user name) might be present in the dump.\nYou will probably want to compress it.", dumpPath), DISTRIBUTION " Sucks", 0);
return EXCEPTION_EXECUTE_HANDLER;
}
}
}
else
MessageBox(NULL, "Kaboom! Sorry. No MiniDumpWriteDump function.", FULLENGINENAME " Sucks", 0);
return EXCEPTION_EXECUTE_HANDLER;
}
