diff options
Diffstat (limited to 'indra/newview/llwindebug.cpp')
| -rw-r--r-- | indra/newview/llwindebug.cpp | 194 |
1 files changed, 193 insertions, 1 deletions
diff --git a/indra/newview/llwindebug.cpp b/indra/newview/llwindebug.cpp index 949ea71c56..42f8a12e4c 100644 --- a/indra/newview/llwindebug.cpp +++ b/indra/newview/llwindebug.cpp @@ -121,6 +121,172 @@ MODULE32_NEST Module32Next_; #define CALL_TRACE_MAX ((DUMP_SIZE_MAX - 2000) / (MAX_PATH + 40)) //max number of traced calls #define NL L"\r\n" //new line +BOOL WINAPI Get_Module_By_Ret_Addr(PBYTE Ret_Addr, LPWSTR Module_Name, PBYTE & Module_Addr); + + +void printError( CHAR* msg ) +{ + DWORD eNum; + TCHAR sysMsg[256]; + TCHAR* p; + + eNum = GetLastError( ); + FormatMessage( FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, + NULL, eNum, + MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language + sysMsg, 256, NULL ); + + // Trim the end of the line and terminate it with a null + p = sysMsg; + while( ( *p > 31 ) || ( *p == 9 ) ) + ++p; + do { *p-- = 0; } while( ( p >= sysMsg ) && + ( ( *p == '.' ) || ( *p < 33 ) ) ); + + // Display the message + printf( "\n WARNING: %s failed with error %d (%s)", msg, eNum, sysMsg ); +} + +BOOL GetProcessThreadIDs(DWORD process_id, std::vector<DWORD>& thread_ids) +{ + HANDLE hThreadSnap = INVALID_HANDLE_VALUE; + THREADENTRY32 te32; + + // Take a snapshot of all running threads + hThreadSnap = CreateToolhelp32Snapshot( TH32CS_SNAPTHREAD, 0 ); + if( hThreadSnap == INVALID_HANDLE_VALUE ) + return( FALSE ); + + // Fill in the size of the structure before using it. + te32.dwSize = sizeof(THREADENTRY32 ); + + // Retrieve information about the first thread, + // and exit if unsuccessful + if( !Thread32First( hThreadSnap, &te32 ) ) + { + printError( "Thread32First" ); // Show cause of failure + CloseHandle( hThreadSnap ); // Must clean up the snapshot object! + return( FALSE ); + } + + // Now walk the thread list of the system, + // and display information about each thread + // associated with the specified process + do + { + if( te32.th32OwnerProcessID == process_id ) + { + thread_ids.push_back(te32.th32ThreadID); + } + } while( Thread32Next(hThreadSnap, &te32 ) ); + +// Don't forget to clean up the snapshot object. + CloseHandle( hThreadSnap ); + return( TRUE ); +} + +void WINAPI GetCallStackData(const CONTEXT* context_struct, LLSD& info) +{ + // Fill Str with call stack info. + // pException can be either GetExceptionInformation() or NULL. + // If pException = NULL - get current call stack. + + LPWSTR Module_Name = new WCHAR[MAX_PATH]; + PBYTE Module_Addr = 0; + + typedef struct STACK + { + STACK * Ebp; + PBYTE Ret_Addr; + DWORD Param[0]; + } STACK, * PSTACK; + + PSTACK Ebp; + + if(context_struct) + { + Ebp = (PSTACK)context_struct->Ebp; + } + else + { + // The context struct is NULL, + // so we will use the current stack. + Ebp = (PSTACK)&context_struct - 1; + + // Skip frame of GetCallStackData(). + if (!IsBadReadPtr(Ebp, sizeof(PSTACK))) + Ebp = Ebp->Ebp; //caller ebp + } + + // Trace CALL_TRACE_MAX calls maximum - not to exceed DUMP_SIZE_MAX. + // Break trace on wrong stack frame. + for (int Ret_Addr_I = 0, i = 0; + (Ret_Addr_I < CALL_TRACE_MAX) && !IsBadReadPtr(Ebp, sizeof(PSTACK)) && !IsBadCodePtr(FARPROC(Ebp->Ret_Addr)); + Ret_Addr_I++, Ebp = Ebp->Ebp, ++i) + { + // If module with Ebp->Ret_Addr found. + + if (Get_Module_By_Ret_Addr(Ebp->Ret_Addr, Module_Name, Module_Addr)) + { + // Save module's address and full path. + info["CallStack"][i]["ModuleName"] = ll_convert_wide_to_string(Module_Name); + info["CallStack"][i]["ModuleAddress"] = (int)Module_Addr; + info["CallStack"][i]["CallOffset"] = (int)(Ebp->Ret_Addr - Module_Addr); + + LLSD params; + // Save 5 params of the call. We don't know the real number of params. + if (!IsBadReadPtr(Ebp, sizeof(PSTACK) + 5 * sizeof(DWORD))) + { + for(int j = 0; j < 5; ++j) + { + params[j] = (int)Ebp->Param[j]; + } + } + info["CallStack"][i]["Parameters"] = params; + } + info["CallStack"][i]["ReturnAddress"] = (int)Ebp->Ret_Addr; + } +} + +BOOL GetThreadCallStack(DWORD thread_id, LLSD& info) +{ + if(GetCurrentThreadId() == thread_id) + { + // Early exit for the current thread. + // Suspending the current thread would be a bad idea. + // Plus you can't retrieve a valid current thread context. + return false; + } + + HANDLE thread_handle = INVALID_HANDLE_VALUE; + thread_handle = OpenThread(THREAD_ALL_ACCESS, FALSE, thread_id); + if(INVALID_HANDLE_VALUE == thread_handle) + { + return FALSE; + } + + BOOL result = false; + if(-1 != SuspendThread(thread_handle)) + { + CONTEXT context_struct; + context_struct.ContextFlags = CONTEXT_FULL; + if(GetThreadContext(thread_handle, &context_struct)) + { + GetCallStackData(&context_struct, info); + result = true; + } + ResumeThread(thread_handle); + } + else + { + // Couldn't suspend thread. + } + + CloseHandle(thread_handle); + return result; +} + + //Windows Call Stack Construction idea from //http://www.codeproject.com/tools/minidump.asp @@ -490,7 +656,33 @@ LONG LLWinDebug::handleException(struct _EXCEPTION_POINTERS *exception_infop) LLSD info; info = Get_Exception_Info(exception_infop); - if (info) + + + LLSD threads; + std::vector<DWORD> thread_ids; + GetProcessThreadIDs(GetCurrentProcessId(), thread_ids); + + for(std::vector<DWORD>::iterator th_itr = thread_ids.begin(); + th_itr != thread_ids.end(); + ++th_itr) + { + LLSD thread_info; + if(*th_itr != GetCurrentThreadId()) + { + GetThreadCallStack(*th_itr, thread_info); + } + + if(thread_info) + { + + threads[llformat("ID %d", *th_itr)] = thread_info; + } + } + + + info["Threads"] = threads; + + if (info) { std::ofstream out_file(log_path.c_str()); LLSDSerialize::toPrettyXML(info, out_file); |