arm-linux-gcc4.4.3编译s3c2410平台linux内核
写在前面:2.6.14版本的内核用arm-linux-gcc4.4.3没有编译成功,下载2.6.37版本的内核用arm-linux-gcc4.4.3编译通过。
一、首先下载linux内核:
linux-2.6.14.tar.bz2 下载地址:http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.14.tar.bz2
二、解压linux-2.6.14.tar.bz2:
tar -jxvf linux-2.6.14.tar.bz2
三、配置Makefile文件:
1、打开源码根目录下的Makefile文件:
gedit Makefile
修改Makefile文件:
ARCH ?= arm
CROSS_COMPILE ?= arm-linux-
2、查看目录结构:
ls -l linux-2.6.14/arch/arm/
drwxrwxr-x 4 mlx mlx 4096 Oct 28 2005 boot
drwxrwxr-x 2 mlx mlx 4096 Oct 28 2005 common
drwxrwxr-x 2 mlx mlx 4096 Oct 28 2005 configs
-rw-rw-r-- 1 mlx mlx 21221 Oct 28 2005 Kconfig
-rw-rw-r-- 1 mlx mlx 3845 Oct 28 2005 Kconfig.debug
drwxrwxr-x 2 mlx mlx 4096 Oct 28 2005 kernel
drwxrwxr-x 2 mlx mlx 4096 Oct 28 2005 lib
... ...
drwxrwxr-x 2 mlx mlx 4096 Oct 28 2005 mach-s3c2410
... ...
可以看到该内核支持s3c2410芯片。
3、查看芯片的默认配置文件:
ls -l linux-2.6.14/arch/arm/configs/
-rw-rw-r-- 1 mlx mlx 18719 Oct 28 2005 rpc_defconfig
-rw-rw-r-- 1 mlx mlx 20543 Oct 28 2005 s3c2410_defconfig
-rw-rw-r-- 1 mlx mlx 16901 Oct 28 2005 shannon_defconfig
-rw-rw-r-- 1 mlx mlx 21104 Oct 28 2005 shark_defconfig
-rw-rw-r-- 1 mlx mlx 18173 Oct 28 2005 simpad_defconfig
-rw-rw-r-- 1 mlx mlx 13382 Oct 28 2005 smdk2410_defconfig
-rw-rw-r-- 1 mlx mlx 28956 Oct 28 2005 spitz_defconfig
-rw-rw-r-- 1 mlx mlx 17936 Oct 28 2005 versatile_defconfig
四、编译内核:
1、拷贝配置文件:
cd linux-2.6.14
cp -f arch/arm/configs/s3c2410_defconfig .config
2、make menuconfig
make menuconfig出错
(1)、Makefile:450: *** mixed implicit and normal rules: deprecated syntax
(2)、make: *** No rule to make target 'menuconfig'. Stop.
针对(1),是由于我的系统的make工具太新,make的旧版规则已经无法兼容新版。按照以下方式,问题得到解决:
在makefile中修改:
config %config: scripts_basic outputmakefile FORCE
改为:
%config: scripts_basic outputmakefile FORCE
修改/ %/: prepare scripts FORCE(错)
为:%/: prepare scripts FORCE(对)
如果正确不做修改
修改后继续make menuconfig,又出现错误:
You must install ncurses-devel in order
>> to use 'make menuconfig'
安装:
sudo apt-get install libncurses5-dev
安装完毕后再次执行make menuconfig即可运行
选择 Load an Alternate Configation File 回车
选择.config
选择 save an Alternate Configation File 回车
此处显示的是我们刚选择的defconfig文件路径,删除掉,改为linux 2.6.26 解压路径下的.config(XXXXXX/.config)
3、出现错误:arch/arm: Is a directory. Stop.
原因:ARCH ?= arm这句话的arm后出现了空格
make zImage 开始编译,编译成功会生成zImage文件
出错
arch/arm/mm/alignment.c: In function 'proc_alignment_write':
arch/arm/mm/alignment.c:119: error: read-only variable '__r2' used as 'asm' output
arch/arm/mm/alignment.c:119: error: read-only variable '__r2' used as 'asm' output
arch/arm/mm/alignment.c:119: error: read-only variable '__r2' used as 'asm' output
arch/arm/mm/alignment.c:119: error: read-only variable '__r2' used as 'asm' output
scripts/Makefile.build:193: recipe for target 'arch/arm/mm/alignment.o' failed
make[1]: *** [arch/arm/mm/alignment.o] Error 1
Makefile:784: recipe for target 'arch/arm/mm' failed
make: *** [arch/arm/mm] Error 2
网上说是因为arm-linux-gcc版本过高导致的,用3.4.1版本。
五、下载2.6.37内核,按照上面的方式重新make:
报错
Can't use 'defined(@array)' (Maybe you should just omit the defined()?) at kernel/timeconst.pl line 373.
/home/mlx/ArmLinux/linux-2.6.37/kernel/Makefile:139: recipe for target 'kernel/timeconst.h' failed
make[1]: *** [kernel/timeconst.h] Error 255
Makefile:914: recipe for target 'kernel' failed
make: *** [kernel] Error 2
解决:将kernel/timeconst.pl中第373行的defined()去掉只留下@val就可以了
继续make,报错:
drivers/leds/leds-h1940.c: In function 'h1940_greenled_set':
drivers/leds/leds-h1940.c:33: error: implicit declaration of function 'h1940_latch_control'
scripts/Makefile.build:250: recipe for target 'drivers/leds/leds-h1940.o' failed
make[2]: *** [drivers/leds/leds-h1940.o] Error 1
scripts/Makefile.build:380: recipe for target 'drivers/leds' failed
make[1]: *** [drivers/leds] Error 2
Makefile:914: recipe for target 'drivers' failed
make: *** [drivers] Error 2
直接把h1940_latch_control()函数注销掉,具体修解决方法还不知道。
继续make,完成后生成了vmlinux。