okay, now i know what's wrong and i fixed 1/2 of it. 1 bss was not null, fixed 2 bink uses seh internally, some videos fail where BinkDoFrame would return 1 or whatever the code was

include/riscv64/efilibplat.h

@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0+ OR BSD-2-Clause */
+
+VOID
+InitializeLibPlatform (
+    IN EFI_HANDLE           ImageHandle,
+    IN EFI_SYSTEM_TABLE     *SystemTable
+    );