Gentoo下建立DD-WRT交叉编译环境

用的是Gentoo Linux Kernel版本2.6.28.7

~ $ uname -a
Linux linyin 2.6.28.7 #1 Tue Mar 3 17:12:26 CST 2009 i686 VIA Samuel 2 CentaurHauls GNU/Linux

从DD-WRT官方网站下载Toolchains

地址:

 

其中有如下几个版本:

all_toolchains_amd64.tar.bz2                  For AMD64 CPU

gcc-3.3.5-openwrt.tar.bz2                     在OpenWRT环境下

gcc-3.4.4-crossmipsel-AMD64.tar.bz2           For AMD64 CPU

gcc.3.4.4-broadcom-mipsel.tar.bz2             一般的X86 CPU

toolchains.darwin.ppc.sp1.tar.bz2             PPC CPU下Darwin系统

toolchains.x86.debian.sp1.tar.bz2             X86下的Debian系统

 

我使用的路由器是贝尔金7231-4P,MIPS类CPU,BROADCOM芯片

:~# uname -a
Linux DD-WRT 2.4.35 #1955 Tue May 20 06:38:36 CEST 2008 mips unknown
:~# cat /proc/cpuinfo
system type             : Broadcom BCM4712 chip rev 1
processor               : 0
cpu model               : BCM3302 V0.7
BogoMIPS                : 199.47
wait instruction        : no
microsecond timers      : yes
tlb_entries             : 32
extra interrupt vector  : no
hardware watchpoint     : no
VCED exceptions         : not available
VCEI exceptions         : not available

下载toolchains后解压,我放在/home/linyin/.opt/

修改用户.bashrc添加:export PATH=$PATH:/home/linyin/.opt/openwrt/bin

 

写个C程序:

  1 #include
  2 int main()
  3 {
  4         printf("Hello,DD-WRT\n");
  5         return 0;
  6 }

 

交叉编译它:

~ $ mipsel-linux-gcc -o test test.c

查看可执行文件类型:

~ $ file test
test: ELF 32-bit LSB executable, MIPS, MIPS32 version 1 (SYSV), dynamically linked (uses shared libs), not stripped

OK,放到DD-WRT下就可以执行了... =)