分类: 电脑技术
作者: admin

自己从源码编译dd-wrt

根据DD-WRT的源码来编译重建DD-WRT是件相当有难度的事情,在这里肯定不是第一次尝试这个工作。你会看到很多奇怪的错误,许多混乱的脚本安装。这,论坛中也没人能作出通过运行程序这种安装充分。在论坛的新闻区远远高于这些新来港,但也很混乱,混淆了。

Brainslayer没有时间做的一切。直到有一天,是DD - WRT的将建立一个没有任何额外的步骤,我已经写了一些脚本,将成立一个对DD - WRT的建设环境。较新的版本可能打破这些脚本的兼容性的DD - WRT的。如果发生这种情况,我不更新它们,花时间来更新它们如果你肯定你的修改是适当的。

[edit]需求

你需要一台Linux机器来编译DD-WRT。它应该工作于安装好了基础开发工具包的机器上。

最低资格(TODO:在有人请完成此列表 - 对/在openwrt先决条件最需要):

  • Automake v1.9.4
  • GNU Make v?
  • GCC/G++ v4
  • ncurses
  • binutils
  • tar
  • bzip2
  • gzip
  • g++
  • patch
  • flex
  • bison
  • make
  • gettext
  • unzip
  • libz-dev
  • libc headers
  • build-essentials

若首次,其中大部分要安装/更新:

sudo apt-get install gcc g++ binutils patch bzip2 flex bison make gettext unzip  zlib1g-dev libc6

[edit]组织架构

WiP DD-WRT的的源代码是有组织的,象这样:

src/            source
  router/       packages 
  linux/        kernel
opt/            make/control

以下是另一种使用svn释出的源代码树。

[root@ibm ~]$ find  DD-WRT -maxdepth 1 -type d
DD-WRT
DD-WRT/redboot
DD-WRT/src
DD-WRT/opt
DD-WRT/tools
DD-WRT/image
DD-WRT/.svn
DD-WRT/.subversion
[root@ibm ~]$

[edit]获取源码

第一步是要获取所需的DD - WRT的版本。您可以通过下载或从DD - WRT的下载部分,或使用Subversion签出这一点。

[edit]Subversion

首先,您需要得到subversion,可在http://subversion.tigris.org/ 对于一些Linux发行版,你应该能够使用软件包管理工具得到 subversion 。

安装后,您可以通过从DD-WRT的最新源运行以下命令:

svn co http://svn.dd-wrt.com/DD-WRT .

--jbrazio 13:05, 17 December 2008 (CET) HTTP method is not working currently.

or

svn co svn://svn.dd-wrt.com/DD-WRT .

这将下载源码到当前的目录,您可以通过更改“目录”。在结束的目录,你想进来走出了“源”。将下载到的一切“DD-WRT的”子目录。


重要

请注意,由于该库包含每个硬件平台的Linux内核版本的源的数繁多,所以需要要很长的时间来下载(大于20G?)。

提取除了内核的源代码的所有源代码,请查看ddwrt_selective_co.sh


请在svn下载释出源码后做一个简单的检查运作。

[root@ibm DD-WRT]$ svn list
.cvsignore
.project
Makefile
image/
opt/
redboot/
src/
tools/
[root@ibm DD-WRT]$

[edit]下载区

另一种方式来获得源是从[1]下载它。 随后你需要通过使用类似下面的很简单的命令来提取它:

tar -jxvf nameoffile.tar.bz

--jbrazio 13:07, 17 December 2008 (CET) The download section seems not to contain the source code for v24 and up.

[edit]说明

2011-01-18补充一下:toolchain-x86_x64-mipsel-4.1.2.tar.bz2下载地址出现在:http://www.dd-wrt.com/dd-wrtv2/downloads/others/tornado/toolchains/toolchain-x86_x64-mipsel-4.1.2.tar.bz2

你需要mipsl的版本为3.4.6和4.1.0的uClibc。他们可在[[2]]为x86用户。 也有部分在下载PPC版本的[[3]]在MIPS - uClibc的开发工具链3.4.6用于建设的内核和4.1.0 mipsel - uClibc的开发工具链,是建设用户模式程序包使用。无论你是否想解压,下面的脚本都将设立适当的符号链接。

为了编译DD-WRT,你只需:

0. 运行ready_ddwrt.sh 和 ready_ddwrt_root.sh (下面的脚本).
 1. 添加4.1.0工具库到您的bin文件夹路径环境变量。即
   PATH=$PATH:/home/db90h/toolchains/4.1.0-uclibc/bin
 2. 到 DD-WRT/opt 目录运行 ./install.sh. 运行 ./install_* 建立一个特定
     你要求重建共享代码的第一个变量。

这两个脚本应保存到ready_ddwrt.sh和ready_ddwrt_root.sh。你可以下载他们[[4]]但是ready_ddwrt.sh缺少最后两节,建立write4和webcomp,所以你最好把刚才的脚本从这个网页复制一下。

注意: $DDROOT/src/linux/brcm可能不存在于你的文件结构(我没有这个想法),所以下面的脚本来解决作出新的子目录$DDROOT/src/linux/brcm ,然后将您的文件夹$DDROOT/src/linux/linux.v2*或简单地改变脚本如下$DDROOT/src/linux/brcm 。

注意: If you are having issues with the first ready_ddwrt.sh script building mksquashfs-lzma and it's giving you some error about "ld: skipping incompatible ./lzma/C/7zip/Compress/LZMA_Lib/liblzma.a when searching for -llzma", then this is likely the result of the CPU tuning done in the CFLAGS in the makefiles. I had to edit src/squashfs-tools/Makefile and src/squashfs-tools/lzma/C/7zip/Compress/LZMA_Lib/makefile removing the following optimizations:

  • -D_FILE_OFFSET_BITS=64
  • -D_LARGEFILE_SOURCE
  • -mtune=opteron
  • -march=opteron
  • -mfpmath=sse
  • -m3dnow
  • -msse2
  • -m64
  • -mmmx
  • -msse3

I kept the "-funroll-loops" and "-O3" optimizations since those should be non-CPU-specific. By all mean leave any optimizations that apply to your CPU. For a 64-bit CPU, leave -D_FILE_OFFSET_BITS=64, -D_LARGEFILE_SOURCE, and -m64. If you're curious as to what your cpu has, look at the flags listed in /proc/cpuinfo.

#!/bin/sh
#
# title: ready_ddwrt.sh
# version: 1.14
# author: Jeremy Collake <jeremy@bitsum.com>
#
# This silly script will prepare a build environment
# for DD-WRT. You must also run ready_ddwrt_root.sh.
#
# RL 11/01/2006: Added line to compile tools/webcomp.c and write4.c
#
MINPARAMS=1
if [ $# -lt "$MINPARAMS" ]
	then
	echo usage:
	echo    ready_ddwrt.sh [ddwrt_base_path]
	echo
	echo i.e.:
	echo    ready_ddwrt.sh /home/db90h/DD-WRT
	echo
	exit 1
fi  

ME=`whoami`
DDROOT=$1

echo I am $ME
echo DD-WRT is at $DDROOT

echo ................................................................
echo creating some symlinks
echo ................................................................
rm $DDROOT/src/linux/brcm/linux.v23/include/asm
ln -s $DDROOT/src/linux/brcm/linux.v23/include/asm-mips $DDROOT/src/linux/brcm/linux.v23/include/asm
# for CFE building
ln -s $DDROOT/src/linux/brcm/linux.v23 $DDROOT/src/linux/linux
echo done

echo ................................................................
echo adjusting some attributes
echo ................................................................
chmod +x $DDROOT/src/router/iptables/extensions/.dccp-test
chmod +x $DDROOT/src/router/iptables/extensions/.layer7-test
echo done

#echo ................................................................
#echo fixing alconf's
#echo ................................................................
#cd src/router/pptpd
#aclocal
#cd ../../..

echo ................................................................
echo "re-building some tools"
echo ................................................................
cd $DDROOT

# make bb_mkdep
cd src/router/busybox/scripts 
rm bb_mkdep
make bb_mkdep 
cd ../../../.. 

# make jsformat
cd src/router/tools 
rm jsformat
make jsformat 
cd ../../..

# make mksquashfs-lzma
cd src/squashfs-tools/
rm mksquashfs-lzma
make 
cp mksquashfs-lzma ../linux/brcm/linux.v23/scripts/squashfs
cd ../..

# make strip
cd tools
rm ./strip
gcc strip.c -o ./strip
cd ..

# make write3
cd tools
rm ./write3
gcc write3.c -o ./write3
cd ..

# make write4
cd tools
rm ./write4
gcc write4.c -o ./write4
cd ..

# make webcomp
cd tools
rm ./webcomp
gcc -o webcomp -DUEMF -DWEBS -DLINUX webcomp.c
cd ..

echo done

这第二个脚本需要以root运行...

#!/bin/sh
#
# title: ready_ddwrt_root.sh
# version: 1.1
# author: Jeremy Collake <jeremy@bitsum.com> aka db90h
#
# This silly script will prepare a build environment
# for DD-WRT. You must also run ready_ddwrt.sh.
#
MINPARAMS=2
if [ $# -lt "$MINPARAMS" ]
	then
	echo 
	echo This script needs root access.
	echo
	echo usage:
	echo    ready_ddwrt_root.sh [ddwrt_base_path] [3.4.6_toolchain_base_path]
	echo
	echo i.e.:
	echo    ready_ddwrt_root.sh /home/db90h/DD-WRT /home/db90h/3.4.6-ucliblc-0.9.28
	echo
	exit 1
fi  

ME=`whoami`
DDROOT=$1
TCHAIN=$2

echo I am $ME
echo DD-WRT is at $DDROOT
echo mipsl-uclibc-x toolchain is at $TCHAIN

echo ................................................................
echo creating some symlinks
echo ................................................................
# duh, this will already be here
mkdir -p /opt
rm /opt/3.3.6
ln -s $TCHAIN /opt/3.3.6
rm /GruppenLW
ln -s $DDROOT/image /GruppenLW

echo All done!