RUBY_DEBUG enables ractor assertions, which sets up some space at the end of each RVALUE to store the associated ractor ID. We need to make sure the function that does this is visible to shared GC libraries.
ASCII-8BIT
BINARY
rb_enc_compile_warn
rb_enc_compile_warning
rb_fix_mul_fix
MUL_OVERFLOW_FIXNUM_P
rb_io_blocking_region
struct rb_io
gets
rb_parser_string_t *
VALUE
NO_SANITIZE