void Track::parse (void)
{
int i;
pSB (header);
name = currPos;
currPos += 40;
pSI (numStrings);
for (i = 0; i < numStrings; i ++)
{
tuneTable.push_back (*(struct Gp5StringTune*)currPos);
currPos += sizeof (struct Gp5StringTune);
}
pSI (port);
pSI (channel);
pSI (effectChannel);
pSI (numFrets);
pSI (capoHeight);
color = *(struct Gp5Color*)currPos;
currPos += sizeof (struct Gp5Color);
size = currPos - start;
}
/* \brief Writes a simple stack trace to the XBMC user directory.
It needs a valid .pdb file to show the method, filename and
line number where the exception took place.
*/
bool win32_exception::write_stacktrace(EXCEPTION_POINTERS* pEp)
{
#define STACKWALK_MAX_NAMELEN 1024
std::string dumpFileName, strOutput;
std::wstring dumpFileNameW;
CHAR cTemp[STACKWALK_MAX_NAMELEN];
DWORD dwBytes;
SYSTEMTIME stLocalTime;
GetLocalTime(&stLocalTime);
bool returncode = false;
STACKFRAME64 frame = { 0 };
HANDLE hCurProc = GetCurrentProcess();
IMAGEHLP_SYMBOL64* pSym = NULL;
HANDLE hDumpFile = INVALID_HANDLE_VALUE;
tSC pSC = NULL;
HMODULE hDbgHelpDll = ::LoadLibrary(L"DBGHELP.DLL");
if (!hDbgHelpDll)
{
goto cleanup;
}
tSI pSI = (tSI) GetProcAddress(hDbgHelpDll, "SymInitialize" );
tSGO pSGO = (tSGO) GetProcAddress(hDbgHelpDll, "SymGetOptions" );
tSSO pSSO = (tSSO) GetProcAddress(hDbgHelpDll, "SymSetOptions" );
pSC = (tSC) GetProcAddress(hDbgHelpDll, "SymCleanup" );
tSW pSW = (tSW) GetProcAddress(hDbgHelpDll, "StackWalk64" );
tSGSFA pSGSFA = (tSGSFA) GetProcAddress(hDbgHelpDll, "SymGetSymFromAddr64" );
tUDSN pUDSN = (tUDSN) GetProcAddress(hDbgHelpDll, "UnDecorateSymbolName" );
tSGLFA pSGLFA = (tSGLFA) GetProcAddress(hDbgHelpDll, "SymGetLineFromAddr64" );
tSFTA pSFTA = (tSFTA) GetProcAddress(hDbgHelpDll, "SymFunctionTableAccess64" );
tSGMB pSGMB = (tSGMB) GetProcAddress(hDbgHelpDll, "SymGetModuleBase64" );
if(pSI == NULL || pSGO == NULL || pSSO == NULL || pSC == NULL || pSW == NULL || pSGSFA == NULL || pUDSN == NULL || pSGLFA == NULL ||
pSFTA == NULL || pSGMB == NULL)
goto cleanup;
dumpFileName = StringUtils::Format("kodi_stacktrace-%s-%04d%02d%02d-%02d%02d%02d.txt",
mVersion.c_str(),
stLocalTime.wYear, stLocalTime.wMonth, stLocalTime.wDay,
stLocalTime.wHour, stLocalTime.wMinute, stLocalTime.wSecond);
dumpFileName = CWIN32Util::SmbToUnc(URIUtils::AddFileToFolder(CWIN32Util::GetProfilePath(), CUtil::MakeLegalFileName(dumpFileName)));
dumpFileNameW = KODI::PLATFORM::WINDOWS::ToW(dumpFileName);
hDumpFile = CreateFileW(dumpFileNameW.c_str(), GENERIC_WRITE, 0, 0, CREATE_ALWAYS, 0, 0);
if (hDumpFile == INVALID_HANDLE_VALUE)
{
goto cleanup;
}
frame.AddrPC.Mode = AddrModeFlat; // Address mode for this pointer: flat 32 bit addressing
frame.AddrStack.Mode = AddrModeFlat; // Address mode for this pointer: flat 32 bit addressing
frame.AddrFrame.Mode = AddrModeFlat; // Address mode for this pointer: flat 32 bit addressing
#if defined(_X86_)
frame.AddrPC.Offset = pEp->ContextRecord->Eip; // Current location in program
frame.AddrStack.Offset = pEp->ContextRecord->Esp; // Stack pointers current value
frame.AddrFrame.Offset = pEp->ContextRecord->Ebp; // Value of register used to access local function variables.
#else
frame.AddrPC.Offset = pEp->ContextRecord->Rip; // Current location in program
frame.AddrStack.Offset = pEp->ContextRecord->Rsp; // Stack pointers current value
frame.AddrFrame.Offset = pEp->ContextRecord->Rbp; // Value of register used to access local function variables.
#endif
if(pSI(hCurProc, NULL, TRUE) == FALSE)
goto cleanup;
DWORD symOptions = pSGO();
symOptions |= SYMOPT_LOAD_LINES;
symOptions |= SYMOPT_FAIL_CRITICAL_ERRORS;
symOptions &= ~SYMOPT_UNDNAME;
symOptions &= ~SYMOPT_DEFERRED_LOADS;
symOptions = pSSO(symOptions);
pSym = (IMAGEHLP_SYMBOL64 *) malloc(sizeof(IMAGEHLP_SYMBOL64) + STACKWALK_MAX_NAMELEN);
if (!pSym)
goto cleanup;
memset(pSym, 0, sizeof(IMAGEHLP_SYMBOL64) + STACKWALK_MAX_NAMELEN);
pSym->SizeOfStruct = sizeof(IMAGEHLP_SYMBOL64);
pSym->MaxNameLength = STACKWALK_MAX_NAMELEN;
IMAGEHLP_LINE64 Line;
memset(&Line, 0, sizeof(Line));
Line.SizeOfStruct = sizeof(Line);
IMAGEHLP_MODULE64 Module;
memset(&Module, 0, sizeof(Module));
Module.SizeOfStruct = sizeof(Module);
int seq=0;
strOutput = StringUtils::Format("Thread %d (process %d)\r\n", GetCurrentThreadId(), GetCurrentProcessId());
WriteFile(hDumpFile, strOutput.c_str(), strOutput.size(), &dwBytes, NULL);
while(pSW(IMAGE_FILE_MACHINE_I386, hCurProc, GetCurrentThread(), &frame, pEp->ContextRecord, NULL, pSFTA, pSGMB, NULL))
{
if(frame.AddrPC.Offset != 0)
{
DWORD64 symoffset=0;
DWORD lineoffset=0;
strOutput = StringUtils::Format("#%2d", seq++);
if(pSGSFA(hCurProc, frame.AddrPC.Offset, &symoffset, pSym))
{
if(pUDSN(pSym->Name, cTemp, STACKWALK_MAX_NAMELEN, UNDNAME_COMPLETE)>0)
strOutput.append(StringUtils::Format(" %s", cTemp));
}
if(pSGLFA(hCurProc, frame.AddrPC.Offset, &lineoffset, &Line))
strOutput.append(StringUtils::Format(" at %s:%d", Line.FileName, Line.LineNumber));
strOutput.append("\r\n");
WriteFile(hDumpFile, strOutput.c_str(), strOutput.size(), &dwBytes, NULL);
}
}
returncode = true;
cleanup:
if (pSym)
free( pSym );
if (hDumpFile != INVALID_HANDLE_VALUE)
CloseHandle(hDumpFile);
if(pSC)
pSC(hCurProc);
if (hDbgHelpDll)
FreeLibrary(hDbgHelpDll);
return returncode;
}
