the hello_driver.c is copy from LDD3:
———————————————————————————————-
#include <linux/init.h>
#include <linux/module.h>
MODULE_LICENSE("Dual BSD/GPL");
static int hello_init(void)
{
printk(KERN_ALERT "Hello, worldn");
return 0;
}
static void hello_exit(void)
{
printk(KERN_ALERT "Goodbye, cruel worldn");
}
module_init(hello_init);
module_exit(hello_exit);
———————————————————————————————-
and the makefile is:
———————————————————————————————-
#INCLUDE_DIRS = /usr/src/
#hello_driver: hello_driver.o
# cc -o hello_driver hello_river.o
#hello_driver.o:hello_driver.c
# cc -c -I$(INCLUDE_DIRS) hello_driver.c
#clean:
# rm hello_driver hello_driver.o
obj-m += hello_driver.o
all:
make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules
clean:
make -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean
———————————————————————————————-
and when type "makefile" into terminal,the result is:
———————————————————————————————-
root@ubuntu810:/usr/crifan/develop/driver# make
make -C /lib/modules/2.6.27-7-generic/build M=/usr/crifan/develop/driver modules
make[1]: Entering directory `/usr/src/linux-headers-2.6.27-7-generic’
scripts/Makefile.build:41: /usr/crifan/develop/driver/Makefile: No such file or directory
make[2]: *** No rule to make target `/usr/crifan/develop/driver/Makefile’. Stop.
make[1]: *** [_module_/usr/crifan/develop/driver] Error 2
make[1]: Leaving directory `/usr/src/linux-headers-2.6.27-7-generic’
make: *** [all] Error 2
———————————————————————————————-
the simplest solution is:
change the file: makefile name to "Makefile"
for the reason described in:
———————————————————————————————-
"对这段脚本需要说明下面几点：
(1)、将上面的脚本保存为Makefile，注意必须保存为M为大写的Makefile。这是因为编译的时候首先看环境变量KERNELRELEASE是否定义，如果没定义则调用Linux内核编译build脚本。该脚本会首先编译内核，其间会创建环境变量KERNELRELEASE，接着编译当前工作目录下的hello模块，此时会第二遍读取Makefile,再次判断环境变量KERNELRELEASE是否定义，已经定义的情况下开始编译hello模块。
如果将该脚本保存为小写m开头的makefile，编译时会出现这样的提示：
scripts/Makefile.build:13: /root/zhou/Makeifle: No such file or directory."
转载请注明：在路上 » Solve: scripts/Makefile.build:41: /usr/crifan/develop/driver/Makefile: No such file or directory