private static IntPtr GoThroughPrecode(Precode precode)
{
if (precode is StubPrecode || precode is RemotingPrecode)
{
if (precode.TargetPtr == ThePreStub.Address)
{
return(IntPtr.Zero);
}
var addr = Utils.FollowRelJmp(precode.JmpToTargetPtr);
if (addr == ThePreStub.Address)
{
return(IntPtr.Zero);
}
else if (FixupPrecode.IsFixupPrecode(addr))
{
return(GoThroughFixupPrecode(FixupPrecode.Create(addr)));
}
return(addr);
}
if (precode is FixupPrecode)
{
return(GoThroughFixupPrecode((FixupPrecode)precode));
}
throw new NotSupportedException("Unsupported precode type.");
}
private static IntPtr GoThroughFixupPrecode(FixupPrecode precode)
{
if (precode.TargetPtr == ThePreStub.Address)
{
return(IntPtr.Zero); // method is not jitted
}
return(Utils.FollowRelJmp(precode.JmpToTargetPtr));
}
public static Precode Create(IntPtr methodPtr)
{
if (StubPrecode.IsStubPrecode(methodPtr))
{
return(StubPrecode.Create(methodPtr));
}
if (FixupPrecode.IsFixupPrecode(methodPtr))
{
return(FixupPrecode.Create(methodPtr));
}
if (RemotingPrecode.IsRemotingPrecode(methodPtr))
{
return(RemotingPrecode.Create(methodPtr));
}
throw new NotSupportedException("Not supported precode type.");
}
public static bool HasPrecode(IntPtr methodPtr)
{
return(StubPrecode.IsStubPrecode(methodPtr) ||
FixupPrecode.IsFixupPrecode(methodPtr) ||
RemotingPrecode.IsRemotingPrecode(methodPtr));
}