rb_exit 16 dln.c #define dln_exit rb_exit rb_exit 1806 include/ruby/ruby.h NORETURN(void rb_exit(int)); rb_exit 3857 process.c rb_exit(istatus); rb_exit 3882 process.c rb_exit(EXIT_FAILURE); rb_exit 2240 thread.c rb_exit(EXIT_SUCCESS);