一:修改Makefile
164 CROSS_COMPILE ?= /home/jun/work/tool/arm-linux-gcc/gcc-linaro-4.9.4-2017.01-x86_64_arm- linux-gnueabihf/bin/arm-linux-gnueabihf-192 ARCH ?= arm
二:修改busybox支持中文字符
修改busybox-1.29.0/libbb/printable_string.c:修改(1)(2)
const char* FAST_FUNC printable_string(uni_stat_t *stats, const char *str)
{while (1) {
... ...if (c < ' ')break;// if (c >= 0x7f) /* (1) */// break;s++;}#if ENABLE_UNICODE_SUPPORTdst = unicode_conv_to_printable(stats, str);
#else{char *d = dst = xstrdup(str);while (1) {unsigned char c = *d;if (c == '\0')break;// if (c < ' ' || c >= 0x7f) /* (2) */ if(c < ' ')*d = '?';d++;}}
#endifreturn auto_string(dst);
}
修改busybox-1.29.0/libbb/unicode.c:修改(1)(2)
static char* FAST_FUNC unicode_conv_to_printable2(uni_stat_t *stats, const char *src, unsigned width, int flags)
{if (unicode_status != UNICODE_ON) {char *d;if (flags & UNI_FLAG_PAD) {d = dst = xmalloc(width + 1);while ((int)--width >= 0) {unsigned char c = *src;if (c == '\0') {do*d++ = ' ';while ((int)--width >= 0);break;}// *d++ = (c >= ' ' && c < 0x7f) ? c : '?'; /* (1) */*d++ = (c >= ' ') ? c : '?';src++;}*d = '\0';} else {d = dst = xstrndup(src, width);while (*d) {unsigned char c = *d;// if (c < ' ' || c >= 0x7f) /* (2) */if (c < ' ')*d = '?';d++;}}}
}
三:配置busybox
预先默认配置busybox再进行图形化详细配置
make defconfig
make menuconfig
1、动态编译设置
Location: -> Settings -> Build static binary (no shared libs) 不能勾选。
2、vi命令行编辑
Location: -> Settings -> vi-style line editing commands
3、取消简化
Location: -> Linux Module Utilities -> Simplified modutils 取消勾选
4、使能unicode
Location: -> Settings -> Support Unicode勾选
四:编译busybox
创建rootfs文件,并设置nfs环境值:
sudo vi /etc/exports/home/jun/work/nfs/rootfs *(rw,sync,no_root_squash)sudo /etc/init.d/nfs-kernel-server restart
指定编译结果放在提前创建好的rootfs文件中:
make install CONFIG_PREFIX=/home/jun/work/nfs/rootfs
五:添加lib库
1、rootfs目录下创建lib文件夹
2、拷贝安装的交叉编译工具中的libc/lib文件到rootfs的lib目录中去。
jun@zero:~/work/tool/arm-linux-gcc/gcc-linaro-4.9.4-2017.01-x86_64_arm-linux-gnueabihf/arm-linux-gnueabihf/libc/lib$ cp *so* *.a /home/jun/work/nfs/rootfs/lib/ -d
其中文件“ld-linux-armhf.so.3”不能作为符号链接,需要从“链接方式”改为“源文件”。
删除刚才拷贝到rootfs/lib目下的符号链接文件,重新拷贝一次过去
cp ld-linux-armhf.so.3 /home/jun/work/nfs/rootfs/lib
3、拷贝libc/usr/lib目录下的文件到rootfs/usr/lib目录中去。
jun@zero:~/work/tool/arm-linux-gcc/gcc-linaro-4.9.4-2017.01-x86_64_arm-linux-gnueabihf/arm-linux-gnueabihf/libc/usr/lib$ cp *so* *.a ~/work/nfs/rootfs/usr/lib/ -d
六:创建其他文件夹
jun@zero:~/work/nfs/rootfs$ mkdir dev proc mnt sys tmp root
jun@zero:~/work/nfs/rootfs$ ls
bin dev lib linuxrc mnt proc root sbin sys tmp usr
七:完善根文件系统
1、创建/etc/init.d/rcS,并给予权限“chmod 777 rcS”
#!/bin/shPATH=/sbin:/bin:/usr/sbin:/usr/bin
LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/lib:/usr/lib
export PATH LD_LIBRARY_PATH runlevelmount -a
mkdir /dev/pts
mount -t devpts devpts /dev/ptsecho /sbin/mdev > /proc/sys/kernel/hotplug
mdev -s
2、创建/etc/fstab
#<file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc defaults 0 0
tmpfs /tmp tmpfs defaults 0 0
sysfs /sys sysfs defaults 0 0