瞅过来~~~编译LDD3的scull驱动问题总结来了

pulbieup

由于Linux内核版本更新的原因，LDD3（v2.6.10）提供的源码无法直接使用，下面是本人编译scull源码时出现的一些问题及解决方法。
! Q0 o) x" |6 X' m5 Y4 e2 H& W& x编译环境：CentOS 6.3（kernel version 2.6.32）
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0 L; _9 P  r; m- j' w编译错误：
make -C /lib/modules/2.6.32-279.14.1.el6.i686/build M=/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull LDDINC=/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/../include modules
" z- w& O2 O1 g% n8 Gmake[1]: Entering directory `/usr/src/kernels/2.6.32-279.14.1.el6.i686'
! O* F& P& {) n" y( Hscripts/Makefile.build:49: *** CFLAGS was changed in "/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/Makefile". Fix it to use EXTRA_CFLAGS.  Stop.
* ^6 ?+ v0 Z1 l( |make[1]: *** [_module_/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull] Error 2
make[1]: Leaving directory `/usr/src/kernels/2.6.32-279.14.1.el6.i686'
: @0 O4 `2 P1 S9 J) B" p2 |make: *** [modules] Error 2
解决方案：
) e% G. c) z* r% X1 f1 s" Y5 i. C  b: NCFLAGS与Makefile.build中的CFLAGS冲突，错误提示要求将CFLAG换成EXTRA_CFLAGS重新编译即可；

编译错误：
2 P& ?  I/ ?' P) u# i2 G- A) perror: linux/config.h: No such file or directory
1 U7 b: {5 M3 a9 V解决方案：
( K) S0 x5 @2 ~从linux-2.6.20起，config.h就已经被移除了.
1 }& g; I6 M, h6 K# a将#include <linux/config.h>修改成如下——>
#include <linux/version.h>
2 `1 n) K$ y  D- y+ q9 F& c#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18))
! C; N! z/ c1 p  R  [5 L" |4 ~8 F#include <linux/config.h>
2 d, T& E7 A% z; i2 _- Y) u#endif

; J6 w4 d& }! M2 v编译错误：
/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/pipe.c: In function ‘scull_p_read’:
/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/pipe.c:131: error: ‘TASK_INTERRUPTIBLE’ undeclared (first use in this function)
5 W  L! k! `# ^% A/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/pipe.c:131: error: (Each undeclared identifier is reported only once
) Q+ X3 B1 w- C6 W' |4 G1 [, R( K/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/pipe.c:131: error: for each function it appears in.)
" o8 K% g( a" h) s* m/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/pipe.c:131: error: implicit declaration of function ‘signal_pending’
/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/pipe.c:131: error: implicit declaration of function ‘schedule’
/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/pipe.c: In function ‘scull_getwritespace’:
/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/pipe.c:168: error: ‘TASK_INTERRUPTIBLE’ undeclared (first use in this function)
2 ?: c# u) z$ }. h; N- P$ L1 e! y/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/pipe.c: In function ‘scull_p_write’:
/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/pipe.c:219: error: ‘TASK_INTERRUPTIBLE’ undeclared (first use in this function)
1 i. ]" p: p& d% D+ n- M% d: b$ y' [6 h. w/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/pipe.c:223: error: ‘SIGIO’ undeclared (first use in this function)
4 p. _- o6 e5 l% q% L/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/pipe.c:223: error: ‘POLL_IN’ undeclared (first use in this function)
make[2]: *** [/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/pipe.o] Error 1
* [' G% s3 A  v" jmake[1]: *** [_module_/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull] Error 2
解决方案：
) @1 u4 R; ~# S, S7 A' v- T- g+ x头文件变动原因，在pipe.c中添加
#include <linux/sched.h>

编译错误：
; H+ z! s( ?: [7 D! D/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/access.c: In function ‘scull_u_open’:
  C- I9 S% Z% \" L8 ^2 D0 K( |# k" o1 F/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/access.c:106: error: dereferencing pointer to incomplete type
/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/access.c:107: error: dereferencing pointer to incomplete type
; ?6 o" D/ z* K' }9 W; ^/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/access.c:114: error: dereferencing pointer to incomplete type
/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/access.c: In function ‘scull_w_available’:
/ E2 @/ |- o) x* a# _/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/access.c:165: error: dereferencing pointer to incomplete type
/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/access.c:166: error: dereferencing pointer to incomplete type
/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/access.c: In function ‘scull_w_open’:
/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/access.c:179: error: ‘TASK_INTERRUPTIBLE’ undeclared (first use in this function)
/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/access.c:179: error: (Each undeclared identifier is reported only once
/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/access.c:179: error: for each function it appears in.)
# ~* n) G5 F. |  l8 Z/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/access.c:179: error: implicit declaration of function ‘signal_pending’
/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/access.c:179: error: implicit declaration of function ‘schedule’
/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/access.c:184: error: dereferencing pointer to incomplete type
/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/access.c: In function ‘scull_w_release’:
/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/access.c:205: error: ‘TASK_INTERRUPTIBLE’ undeclared (first use in this function)
) h/ Y/ x! Y( B" V. V* d/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/access.c: In function ‘scull_c_open’:
) O! Z- `9 q( Y( G- G/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/access.c:277: error: dereferencing pointer to incomplete type
/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/access.c:281: error: dereferencing pointer to incomplete type
' }/ T+ z1 W' n) i( k* l3 _2 H9 [make[2]: *** [/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/access.o] Error 1
make[1]: *** [_module_/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull] Error 2
7 B; G; N" v7 D. F( o" [make[1]: Leaving directory `/usr/src/kernels/2.6.32-279.14.1.el6.i686'
; e4 E# F4 u$ }make: *** [modules] Error 2
( H( ?4 v8 ~% s$ v) J2 J解决方案：
- M+ f$ b% ^$ w8 V头文件变动原因，在access.c中添加
9 a4 F8 N4 T# {* U#include <linux/sched.h>   
9 A- a/ T! E6 r
2 ]# L5 _3 H% ~编译错误：
' r/ e( _; l) ^: F' o4 F/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/access.c: In function ‘scull_u_open’:
/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/access.c:107: error: ‘struct task_struct’ has no member named ‘uid’
/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/access.c:108: error: ‘struct task_struct’ has no member named ‘euid’
$ u# K' C( G6 i5 M/ F/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/access.c:115: error: ‘struct task_struct’ has no member named ‘uid’
) w# d! N* @! M/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/access.c: In function ‘scull_w_available’:
  e2 w" u7 D4 P9 t) j1 c9 v/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/access.c:166: error: ‘struct task_struct’ has no member named ‘uid’
/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/access.c:167: error: ‘struct task_struct’ has no member named ‘euid’
' b0 y# w) W5 ?' L6 M5 ~) x/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/access.c: In function ‘scull_w_open’:
: `* \& B! I: H( y/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/access.c:185: error: ‘struct task_struct’ has no member named ‘uid’
make[2]: *** [/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull/access.o] Error 1
, E, j; @/ w- @5 T+ B) p: _9 ~  E$ A1 U, j$ Vmake[1]: *** [_module_/mnt/HappyStudy/MyDesigner/Linux/LDD3/examples/scull] Error 2
7 B" R2 N& @0 e1 N9 k% d% cmake[1]: Leaving directory `/usr/src/kernels/2.6.32-279.14.1.el6.i686'
8 b5 s1 M# B1 mmake: *** [modules] Error 2
4 r  E8 M2 w1 {3 Z2 k解决方案：
) t$ S! J( `6 g7 S# c1 `# Z* n7 ^因为内核版本的升级，struct task_struct发生了变动，uid和euid放到了cred域下.
3 {4 e& e  {. q+ b0 ]9 y4 h修改，做如下替换
current->uid 替换成current->cred->uid
current->euid替换成current->cred->euid
$ z. y8 w) H9 m  e/ J! n: `
. h4 X, F# [7 C$ b6 E" d! a重新编译，成功！

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fanichicl

谢谢分享。