Linux kernel, wifi hack, security & Golang

• By: Bian Jiang (borderj@gmail.com)
• From: http://www.b0rder.com
• Date: 2008.11.17

I’m trying to cross-compile NetSNMP 5.4.2 for running on an embedded system (mips).

由于我使用的CPU是little endian 交叉编译工具是 mipsel-linux

但是如果你用的是Big endian，交叉编译用具就可能是 mips-linux

如果你是ARM平台的话，相应的改为 arm-linux

1. 设置环境变量:

   TOOLCHAIN=mipsel-linux-
   CC=${TOOLCHAIN}gcc
   CPP=${TOOLCHAIN}cpp
   AR=${TOOLCHAIN}ar
   STRIP=${TOOLCHAIN}strip
   RANLIB=${TOOLCHAIN}ranlib
   LD=${TOOLCHAIN}ld

2. 编译安装:

   ../net-snmp-5.4.2.1/configure --build=i686-linux --host=mipsel-linux --target=mipsel-linux \
   --with-transports="UDP"  --prefix=/opt/rootfs/snmp --with-endianness=little \
   --with-persistent-directory=/var/net-snmp/ --with-default-snmp-version="2" \
   --enable-mini-agent --without-kmem-usage --disable-debugging --disable-embedded-perl \
   --without-perl-modules
   
   make
   make install

• 1. 如果你采用的是 Big endian， –with-endianness=little 应该改为 –with-endianness=big
• 1. 如果不想对openssl 的支持，用 –without-openssl

1. 测试:

   border@ubuntu:/opt/rootfs/snmp/sbin$ pwd
   /opt/rootfs/snmp/sbin
   border@ubuntu:/opt/rootfs/snmp/sbin$ file snmpd
   snmpd: ELF 32-bit LSB executable, MIPS, version 1 (SYSV), dynamically linked (uses shared libs), not stripped
   border@ubuntu:/opt/rootfs/snmp/sbin$ file snmptrapd
   snmptrapd: ELF 32-bit LSB executable, MIPS, version 1 (SYSV), dynamically linked (uses shared libs), not stripped

参考:

1. http://fixunix.com/snmp/175765-multiple-warning-cross-compiling-net-snmp-mips-linux.html

–Bian Jiang

–EOF–