rb_tracearg_self   80 include/ruby/debug.h VALUE rb_tracearg_self(rb_trace_arg_t *trace_arg);
rb_tracearg_self  975 vm_trace.c         return rb_tracearg_self(get_trace_arg());
rb_tracearg_self 1340 vm_trace.c     			      rb_tracearg_self(trace_arg));