我的机器主系统是Windows 7,用于op开发装了VirtualBox和Ubuntu 12.04 LTS。首先,解决依赖问题,开发op必备如下组件。#sudo apt-get install build-essential subversion git-core libncurses5-dev zlib1g-dev gawk flex quilt libssl-dev xsltproc libxml-parser-perl mercurial bzr ecj cvs unzip接下来下载源代码,需要用到svn工具,下载最新开发版代码命令如下:#svn co svn://svn.openwrt.org/openwrt/trunk因源码随时可能变动,下载后,运行snv up更新本地代码。下载后一般额外软件包需要更新: #./scripts/feeds update -a# ./scripts/feeds install -a编译必须保证有良好的网络连接,且非root账户。下一步是检查编译环境:#make defconfig若defconfig回显提示缺少软件包或编译库等依赖,则按提示安装所缺软件包或库等即可接下来是配置:#make menuconfig比如:编译一个mr3420的固件 1.Target System—–选择Atheros AR71xx/AR7240/AR913x/AR934x 2.Target Profile—-选择TP-LINK TL-MR3420 v1 3.LuCI—-选择Collections—– <*> luci 4.LuCI—-选择Translations—-<*> luci-i18n-chinese 5.Exit—-Yes 6.开始编译make V=99,最后会得到一个4M的带中文luci的mr3420固件。
MR3420的8M固件编译方法
1.在路径 /trunk/tools/firmware-utils/src/mktplinkfw.c 这个文件里边有个“fw max len”,默认3c0000是4M的,请改成7c0000 (这一步把固件最大限制改成8M),如果是16mflash,请改成fc0000(最大限制改成16m)。 2、修改target/linux/ar71xx/files/arch/mips/ar71xx/mach-tl-wr841n.c(找相应文件)4M: 41 .name = "u-boot", 42 .offset = 0, 43 .size = 0x020000, 44 .mask_flags = MTD_WRITEABLE, 45 }, { 46 .name = "kernel", 47 .offset = 0x020000, 48 .size = 0x140000, 49 }, { 50 .name = "rootfs", 51 .offset = 0x160000, 52 .size = 0x290000, 53 }, { 54 .name = "art", 55 .offset = 0x3f0000, 56 .size = 0x010000, 57 .mask_flags = MTD_WRITEABLE, 58 }, { 59 .name = "firmware", 60 .offset = 0x020000, 61 .size = 0x3d0000, 62 } 63 };8M:: 41 .name = "u-boot", 42 .offset = 0, 43 .size = 0x020000, 44 .mask_flags = MTD_WRITEABLE, 45 }, { 46 .name = "kernel", 47 .offset = 0x020000, 48 .size = 0x140000, 49 }, { 50 .name = "rootfs", 51 .offset = 0x160000, 52 .size = 0x690000, 53 }, { 54 .name = "art", 55 .offset = 0x7f0000, 56 .size = 0x010000, 57 .mask_flags = MTD_WRITEABLE, 58 }, { 59 .name = "firmware", 60 .offset = 0x020000, 61 .size = 0x7d0000, 62 } 63 };16M:: 41 .name = "u-boot", 42 .offset = 0, 43 .size = 0x020000, 44 .mask_flags = MTD_WRITEABLE, 45 }, { 46 .name = "kernel", 47 .offset = 0x020000, 48 .size = 0x140000, 49 }, { 50 .name = "rootfs", 51 .offset = 0x160000, 52 .size = 0xe90000, 53 }, { 54 .name = "art", 55 .offset = 0xff0000, 56 .size = 0x010000, 57 .mask_flags = MTD_WRITEABLE, 58 }, { 59 .name = "firmware", 60 .offset = 0x020000, 61 .size = 0xfd0000, 62 } 63 };8M:: 0x000000000000-0x000000020000 : "u-boot" 0x000000020000-0x000000160000 : "kernel" 0x000000160000-0x0000007f0000 : "rootfs" 0x000000620000-0x0000007f0000 : "rootfs_data" 0x0000007f0000-0x000000800000 : "art" 0x000000020000-0x0000007f0000 : "firmware"4M:: 0x000000000000-0x000000020000 : "u-boot" 0x000000020000-0x000000160000 : "kernel" 0x000000160000-0x0000003f0000 : "rootfs" 0x000000304000-0x0000003f0000 : "rootfs_data" 0x0000003f0000-0x000000400000 : "art" 0x000000020000-0x0000003f0000 : "firmware"16M:: 0x000000000000-0x000000020000 : "u-boot" 0x000000020000-0x000000160000 : "kernel" 0x000000160000-0x000000ff0000 : "rootfs" 0x000000380000-0x000000ff0000 : "rootfs_data" 0x000000ff0000-0x000001000000 : "art" 0x000000020000-0x000000ff0000 : "firmware"最后是编译,其实编译命令最简单#make如果是多核CPU,可以增加参数,常规用法为 <您cpu处理器的数目 + 1> – 例如使用3进程来编译 (即双核CPU), 命令如下:#make -j 3如果想看到编译过程中的错误信息,可以增加一个V=99或者V=s的参数。生成镜像(Image)位置新生成的镜像会默认放在新建的一个bin目录下。例如:/bin/brcm-2.4/packages[openwrt@localhost trunk]$ ls bin/*将编译好的镜像做个备份,例如备份到/目录下:[openwrt@localhost trunk]$ cp bin /清理工作建议现在清理编译产生的文件,以免下次编译时造成冲突,(文件如果存在的话,将不会被替换),执行make clean注意:在执行clean命令,确保已经将编译好的image进行了备份。清理工作会清楚bin目录。[openwrt@localhost trunk]$ make clean 除了清除生成的目录,还想清除交叉编译工具(以及工具链目录)[openwrt@localhost trunk]$ make dirclean清除所有相关的东西,包括下载的软件包,配置文件,feed内容等:(不建议使用)[openwrt@localhost trunk]$ make distclean对于更新feeds后出现的错误:ERROR:please fix package/feeds/packages/mc/Makefile 等类似的问题,需要执行这条语句进行系统的清理本文永久更新链接地址