syscalltbl__id
int id = syscalltbl__id(EM_HOST, sc), match_next = -1;
trace->fd_path_disabled = !trace__syscall_enabled(trace, syscalltbl__id(EM_HOST, "close"));
if (syscalltbl__id(EM_HOST, s) >= 0 ||
int syscalltbl__id(int e_machine, const char *name);