1./allexec64 will exec ./allexec32 2program exec-ed: ./allexec32 3child exited 4program exec-ed: ./allexec32 constant_arg1 constant_arg2 5child exited 6program exec-ed: ./allexec32 7child exited 8./allexec64 will exec ./allexec64 9program exec-ed: ./allexec64 10child exited 11program exec-ed: ./allexec64 constant_arg1 constant_arg2 12child exited 13program exec-ed: ./allexec64 14child exited 15