public static void InstallFunctionTableHandler(IntPtr codeCachePointer, uint codeCacheLength, IntPtr workBufferPtr)
{
const uint codeCacheLengthMax = 2047 * 1024 * 1024;
ulong codeCachePtr = (ulong)codeCachePointer.ToInt64();
_sizeOfRuntimeFunction = Marshal.SizeOf <RuntimeFunction>();
bool result;
unsafe
{
_runtimeFunction = (RuntimeFunction *)workBufferPtr;
_unwindInfo = (UnwindInfo *)(workBufferPtr + _sizeOfRuntimeFunction);
_getRuntimeFunctionCallback = new GetRuntimeFunctionCallback(FunctionTableHandler);
result = RtlInstallFunctionTableCallback(
codeCachePtr | 3,
codeCachePtr,
Math.Min(codeCacheLength, codeCacheLengthMax),
_getRuntimeFunctionCallback,
codeCachePointer,
null);
}
if (!result)
{
throw new InvalidOperationException("Failure installing function table callback.");
}
}
private static unsafe extern bool RtlInstallFunctionTableCallback(
ulong tableIdentifier,
ulong baseAddress,
uint length,
GetRuntimeFunctionCallback callback,
IntPtr context,
string outOfProcessCallbackDll);
public static extern bool RtlInstallFunctionTableCallback(ulong TableIdentifier, ulong BaseAddress, uint Length, GetRuntimeFunctionCallback Callback, IntPtr Context = default, [MarshalAs(UnmanagedType.LPWStr)] string OutOfProcessCallbackDll = null);
