void PDataManager::UnregisterPdata(RUNTIME_FUNCTION* pdata)
{
if (AutoSystemInfo::Data.IsWin8OrLater())
{
NtdllLibrary::Instance->DeleteGrowableFunctionTable(pdata);
}
else
{
BOOLEAN success = RtlDeleteFunctionTable(pdata);
Assert(success);
}
}
/* static */
void XDataAllocator::Unregister(XDataAllocation * xdataInfo)
{
#ifdef _WIN32
// Delete the table
if (AutoSystemInfo::Data.IsWin8OrLater())
{
NtdllLibrary::Instance->DeleteGrowableFunctionTable(xdataInfo->functionTable);
}
else
{
BOOLEAN success = RtlDeleteFunctionTable(&xdataInfo->pdata);
Assert(success);
}
#else // !_WIN32
Assert(ReadHead(xdataInfo->address)); // should be non-empty .eh_frame
__deregister_frame(xdataInfo->address);
#endif
}
~MemoryManager()
{
#ifdef _WIN32
if (!RtlDeleteFunctionTable(s_unwind.data()))
{
LOG_FATAL(GENERAL, "RtlDeleteFunctionTable(%p) failed! Error %u", s_unwind_info, GetLastError());
}
if (!VirtualFree(s_memory, 0, MEM_DECOMMIT))
{
LOG_FATAL(GENERAL, "VirtualFree(%p) failed! Error %u", s_memory, GetLastError());
}
#else
if (!::mmap(s_memory, s_memory_size, PROT_NONE, MAP_FIXED | MAP_ANON | MAP_PRIVATE, -1, 0))
{
LOG_FATAL(GENERAL, "mmap(%p) failed! Error %d", s_memory, errno);
}
// TODO: unregister EH frames if necessary
#endif
}