-MonoGCDescriptor mono_gc_make_descr_for_object (gsize *bitmap, int numbits, size_t obj_size);
-MonoGCDescriptor mono_gc_make_descr_for_array (int vector, gsize *elem_bitmap, int numbits, size_t elem_size);
+MonoGCDescriptor mono_gc_make_descr_for_object (gsize *bitmap, int numbits, size_t obj_size)
+ MONO_PERMIT (need (sgen_lock_gc));
+MonoGCDescriptor mono_gc_make_descr_for_array (int vector, gsize *elem_bitmap, int numbits, size_t elem_size)
+ MONO_PERMIT (need (sgen_lock_gc));