linux signal编译不过,Linux编译中的各种error处理

LDD3中的第一个例程就是scull，但是在新内核上编译的过程那叫一个坎坷。。。 在此做出总结，希望可以帮到同路人。。。

一、错误：

error: linux/config.h:

No such file or directory

解决： 从linux-2.6.20起，config.h就已经被移除了. 在main.c中， 将#include  改为：

#include

#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18))

#include

#endif

二、错误：

/ldd3_examples/scull/main.c:32:46: fatal error: asm/system.h: No

such file or directory

解决： 在main.c中， 将#include  改为:

#if LINUX_VERSION_CODE > KERNEL_VERSION(3,3,0)

#include

#else

#include

#endif

在目录:/usr/src/linux-headers-3.11.0-15/include下没有asm，只有asm-generic，执行ln

-s asm-generic asm可以解决。

三、错误：

error: implicit

declaration of function ‘init_MUTEX’

[-Werror=implicit-function-declaration]

解决： 在新版本的linux内核中，init_mutex已经被废除了，新版本使用sema_init函数。需要在main.c中包含头文件#include

将init_MUTEX(&scull_devices[i].sem); 改为：sema_init(&scull_devices[i].sem,1);

四、错误：

error: unknown field ‘ioctl’ specified in initializer

解决：

原因是：在2.6.36内核上file_operations发生了重大的改变： 原先的 int (ioctl)(struct inode, struct file*, unsigned int,

unsigned long); 被改为了 long (unlocked_ioctl) (struct file,

unsigned int, unsigned long); long (compat_ioctl) (struct file,

unsigned int, unsigned long);

因而在实际驱动中，我们需要将原先的写的ioctl函数头给改成下面的unlocked_ioctl，在file_operations结构体的填充中也是一样。

五、错误： /home/jassion/work/book/ldd3_examples/scull/pipe.c: In function

‘scull_p_read’: /home/jassion/work/book/ldd3_examples/scull/pipe.c:131:7: error:

‘TASK_INTERRUPTIBLE’ undeclared (first use in this

function) /home/jassion/work/book/ldd3_examples/scull/pipe.c:131:7: note:

each undeclared identifier is reported only once for each function

it appears in /home/jassion/work/book/ldd3_examples/scull/pipe.c:131:3: error:

implicit declaration of function ‘signal_pending’

[-Werror=implicit-function-declaration] /home/jassion/work/book/ldd3_examples/scull/pipe.c:131:3: error:

implicit declaration of function ‘schedule’

[-Werror=implicit-function-declaration] /home/jassion/work/book/ldd3_examples/scull/pipe.c: In function

‘scull_getwritespace’: /home/jassion/work/book/ldd3_examples/scull/pipe.c:168:38: error:

‘TASK_INTERRUPTIBLE’ undeclared (first use in this

function) /home/jassion/work/book/ldd3_examples/scull/pipe.c: In function

‘scull_p_write’: /home/jassion/work/book/ldd3_examples/scull/pipe.c:219:2: error:

‘TASK_INTERRUPTIBLE’ undeclared (first use in this

function) /home/jassion/work/book/ldd3_examples/scull/pipe.c:223:34: error:

‘SIGIO’ undeclared (first use in this

function) /home/jassion/work/book/ldd3_examples/scull/pipe.c:223:41: error:

‘POLL_IN’ undeclared (first use in this function)

解决： 头文件变动原因，在pipe.c中添加

#include

六、错误： /home/jassion/work/book/ldd3_examples/scull/pipe.c:321:2: error:

unknown field ‘ioctl’ specified in

initializer 解决： 在pipe.c中， 将.ioctl = scull_ioctl, 改为.unlocked_ioctl = scull_ioctl,

七、错误： /home/jassion/work/book/ldd3_examples/scull/pipe.c: In function

‘scull_p_init’: /home/jassion/work/book/ldd3_examples/scull/pipe.c:367:3: error:

implicit declaration of function ‘init_MUTEX’

[-Werror=implicit-function-declaration]

解决： 在pipe.c中， 将init_MUTEX(&scull_p_devices[i].sem); 改为：sema_init(&scull_p_devices[i].sem,1);

八、错误： access.c中的一系列错误 1、/home/jassion/work/book/ldd3_examples/scull/access.c:98:34:

error: ‘SPIN_LOCK_UNLOCKED’ undeclared here (not in a function)

解决：原因，SPIN_LOCK_UNLOCKED在新内核中被弃用 在access.c中添加头文件：

#include

修改定义 static spinlock_t scull_u_lock =

SPIN_LOCK_UNLOCKED; 为：static DEFINE_SPINLOCK(scull_u_lock);

2、/home/jassion/work/book/ldd3_examples/scull/access.c:179:3:

error: implicit declaration of function ‘signal_pending’

[-Werror=implicit-function-declaration] /home/jassion/work/book/ldd3_examples/scull/access.c:179:3: error:

implicit declaration of function ‘schedule’

[-Werror=implicit-function-declaration]。。。。。。。

解决： 在access.c中添加头文件：

#include

3、/home/jassion/work/book/ldd3_examples/scull/access.c: In function

‘scull_u_open’: /home/jassion/work/book/ldd3_examples/scull/access.c:108:29: error:

‘struct task_struct’ has no member named

‘uid’ /home/jassion/work/book/ldd3_examples/scull/access.c:109:29: error:

‘struct task_struct’ has no member named

‘euid’ /home/jassion/work/book/ldd3_examples/scull/access.c:116:26: error:

‘struct task_struct’ has no member named

‘uid’ 。。。。。。

解决：原因：新的struct

task_struct 定义有变化，uid和euid在cred结构体中。 办法：加头文件#include ， 将

current->uid改为current->cred->uid， current->euid改为current->cred->euid

其他的问题，参考上面的方法进行处理即可。

编译成功之后的截图：