public static unsafe bool Initialize()
{
NewCompileMethod = HookedCompileMethod;
IntPtr pCompileMethod = Marshal.ReadIntPtr(VTableAddr);
uint old;
if (
!JITNative.VirtualProtect(pCompileMethod, (uint)IntPtr.Size,
JITNative.Protection.PAGE_EXECUTE_READWRITE, out old))
{
return(false);
}
OriginalCompileMethod =
(JITNative.CompileMethodDelegate)
Marshal.GetDelegateForFunctionPointer(Marshal.ReadIntPtr(pCompileMethod), typeof(JITNative.CompileMethodDelegate));
RuntimeHelpers.PrepareDelegate(NewCompileMethod);
RuntimeHelpers.PrepareDelegate(OriginalCompileMethod);
RuntimeHelpers.PrepareMethod(typeof(JITInterceptor).GetMethod("Initialize", BindingFlags.Static | BindingFlags.Public).MethodHandle);
RuntimeHelpers.PrepareMethod(typeof(JITInterceptor).GetMethod("FindModule", BindingFlags.Static | BindingFlags.NonPublic).MethodHandle);
Marshal.WriteIntPtr(pCompileMethod, Marshal.GetFunctionPointerForDelegate(NewCompileMethod));
return(JITNative.VirtualProtect(pCompileMethod, (uint)IntPtr.Size,
(JITNative.Protection)old, out old));
}
public static bool UnInitialize()
{
IntPtr pCompileMethod = Marshal.ReadIntPtr(VTableAddr);
uint old;
if (
!JITNative.VirtualProtect(pCompileMethod, (uint)IntPtr.Size,
JITNative.Protection.PAGE_EXECUTE_READWRITE, out old))
{
return(false);
}
Marshal.WriteIntPtr(pCompileMethod, Marshal.GetFunctionPointerForDelegate(OriginalCompileMethod));
return(JITNative.VirtualProtect(pCompileMethod, (uint)IntPtr.Size,
(JITNative.Protection)old, out old));
}