编译linux2.6.24 博客分类： linux linux内核

真是每个linux的小版本编译的时候都有不同的问题啊，
最近在看《独辟蹊径品内核》《linux2.6内核标准教程》
用到linux2.6.24.编译的问题汇总到这里
环境

[root@centos140_11 boot]# gcc --version
gcc (GCC) 4.8.3 20140911 (Red Hat 4.8.3-9)
Copyright (C) 2013 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

[root@centos140_11 boot]# cat /etc/redhat-release 
CentOS Linux release 7.1.1503 (Core) 
[root@centos140_11 boot]# 

从
https://www.kernel.org/pub/linux/kernel/v2.6/
下的2.6.24

解压后
设置menuconfig 选debug

make O=/home/haoning/rtclinux/websocket/web/jslinux/tmp/linux2.6.24.build/kernel/ menuconfig

开始编译：

time make O=/home/haoning/rtclinux/websocket/web/jslinux/tmp/linux2.6.24.build/kernel/ -j10

遇到问题：

错误1
参考
http://blog.sina.com.cn/s/blog_8f9cdbbd01014lxj.html

arch/x86/vdso/Makefile
 19 quiet_cmd_syscall = SYSCALL $@
 20       cmd_syscall = $(CC) -m elf_x86_64 -nostdlib $(SYSCFLAGS_$(@F)) \
 21                   -Wl,-T,$(filter-out FORCE,$^) -o $@

-m elf_x86_64 换成 -m64

-----------------------------------------------
错误2：

/tmp/cct0Bawg.s: Assembler messages:
/tmp/cct0Bawg.s: Error: .size expression for copy_user_generic_c does not evaluate to a constant
make[2]: *** [arch/x86/lib/copy_user_64.o] Error 1
make[1]: *** [arch/x86/lib] Error 2
make: *** [sub-make] Error 2

参考
http://*.com/questions/23194840/linux-2-6-24-kernel-compilation-error-size-expression-for-copy-user-generic-c-d

arch/x86/lib/copy_user_64.S
347 END(copy_user_generic_c)
348 
349     .section __ex_table,"a"
350     .quad 1b,3b
351     .quad 2b,5b
换成
347 END(copy_user_generic_c)
348 
349     .section __ex_table,"a"
350     .quad 1b,3b
351     .quad 2b,5b

-----------------------------
错误3：

kernel/built-in.o: In function `mutex_lock':
/home/haoning/rtclinux/websocket/web/jslinux/tmp/linux-2.6.24/kernel/mutex.c:92: undefined reference to `__mutex_lock_slowpath'
kernel/built-in.o: In function `mutex_unlock':
/home/haoning/rtclinux/websocket/web/jslinux/tmp/linux-2.6.24/kernel/mutex.c:118: undefined reference to `__mutex_unlock_slowpath'
make[1]: *** [.tmp_vmlinux1] Error 1
make: *** [sub-make] Error 2

kernel/mutex.c
这个好使，其他的都是扯淡，什么该config参数，什么加__used都不行，需要把static去掉，加锁和解锁的
https://github.com/socketpair/jslinux_reversed/blob/master/contrib/patches/2.6.20_common_fixes.patch
__mutex_lock_slowpath的两个方法的static去掉
__mutex_unlock_slowpath的两个方法的static去掉

-----------------------------------------
错误4：

/scripts/unifdef.c:70:0:
/usr/include/stdio.h:678:20: note: previous declaration of ‘getline’ was here

解决：

scripts/unifdef.c
207 static int              findsym(const char *);
208 static void             flushline(bool);
209 //static Linetype         getline(void);
210 static Linetype         mygetline(void);
211 static Linetype         ifeval(const char **);
212 static void             ignoreoff(void);

511     Linetype lineval;
512 
513     for (;;) {
514         linenum++;
515         //lineval = getline();
516         lineval = mygetline();
517         trans_table[ifstate[depth]][lineval]();
518         debug("process %s -> %s depth %d",
519             linetype_name[lineval],
520             ifstate_name[ifstate[depth]], depth);
521     }
522 }
523 
524 /*
525  * Parse a line and determine its type. We keep the preprocessor line
526  * parser state between calls in the global variable linestate, with
527  * help from skipcomment().
528  */
529 static Linetype
530 //getline(void)
531 mygetline(void)
532 {   
533     const char *cp;
534     int cursym;
535     int kwlen;