lld书，编译hello.c，make失败。

scheol

[root@localhost me]# ls
hello.c  makefile
[root@localhost me]# cat makefile
obj-m := hello.o
[root@localhost me]# cat hello.c
#include <linux/init.h>
#include <linux/module.h>

MODULE_LICENSE("Dual BSD/GPL")

static int hello_init(void)
{
    printk(KERN_ALERT "Hello, World!\r\n");
    return 0;
}

static void hello_exit(void)
{
    printk(KERN_ALERT "GoodBye, cruel world!\r\n");
}

module_init(hello_init);
module_exit(hello_exit);
[root@localhost me]# make
make: *** 无目标。 停止。
[root@localhost me]#

scheol

内核已经安装成功
[root@localhost me]# cat /boot/grub/grub.conf
# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE:  You have a /boot partition.  This means that
#          all kernel and initrd paths are relative to /boot/, eg.
#          root (hd0,0)
#          kernel /vmlinuz-version ro root=/dev/sda3
#          initrd /initrd-[generic-]version.img
#boot=/dev/sda
default=0
timeout=5
splashimage=(hd0,0)/grub/splash.xpm.gz
hiddenmenu
title Red Hat Enterprise Linux Server (2.6.32.69)
        root (hd0,0)
        kernel /vmlinuz-2.6.32.69 ro root=UUID=47c36b63-d8d4-420a-b89c-992c0ceee608 intel_iommu=on rd_NO_LUKS  KEYBOARDTYPE=pc KEYTABLE=us rd_NO_MD LANG=zh_CN.UTF-8 rd_NO_LVM rd_NO_DM rhgb quiet
        initrd /initramfs-2.6.32.69.img
title Red Hat Enterprise Linux (2.6.32-358.el6.x86_64)
        root (hd0,0)
        kernel /tboot.gz logging=vga,serial,memory
        module /vmlinuz-2.6.32-358.el6.x86_64 ro root=UUID=47c36b63-d8d4-420a-b89c-992c0ceee608 intel_iommu=on rd_NO_LUKS  KEYBOARDTYPE=pc KEYTABLE=us rd_NO_MD LANG=zh_CN.UTF-8 rd_NO_LVM rd_NO_DM rhgb quiet
        module /initramfs-2.6.32-358.el6.x86_64.img
[root@localhost me]# uname -a
Linux localhost.localdomain 2.6.32.69 #1 SMP Mon Jan 25 07:19:57 CST 2016 x86_64 x86_64 x86_64 GNU/Linux
[root@localhost me]#

scheol

请问一下，这个为什么不好使呢，我哪里写错了么~~