Update to buildroot toolchain for nios2

Let's do it step by step.

1. login with a user account, eg, alex. do not use root account.

your home dir will be /home/alex, or in short ~/

2. open your browser, eg, firefox, download all the files into ~/download, ie, /home/alex/download.

http://buildroot.uclibc.org/downloads/snap...napshot.tar.bz2 (http://buildroot.uclibc.org/downloads/snapshots/buildroot-snapshot.tar.bz2)

http://forum.niosforum.com/forum/index.php...type=post&id=60 (http://forum.niosforum.com/forum/index.php?act=attach&type=post&id=60)

ftp://linuxforum.net/ftp.gcc.gnu.org/rele...c-3.4.3.tar.bz2 (ftp://linuxforum.net/ftp.gcc.gnu.org/releases/gcc-3.4.3/gcc-3.4.3.tar.bz2)

http://uclibc.org/downloads/snapshots/ucli...napshot.tar.bz2 (http://uclibc.org/downloads/snapshots/uclibc-snapshot.tar.bz2)

http://busybox.net/downloads/snapshots/bus...napshot.tar.bz2 (http://busybox.net/downloads/snapshots/busybox-snapshot.tar.bz2)

3. open a terminal, the current dir will be your home dir, ~/

cd download

unzip configs.zip

cd ~

tar jxf download/buildroot-snapshot.tar.bz2

cd buildroot

ln -s ../download dl

make defconfig

cp dl/buildroot.config .config

make

If you have problem, send me,

ls ~/buildroot

ls ~/buildroot/build_nios2

ls ~/buildroot/build_nios2/staging_dir

ls ~/buildroot/toolchain_build_nios2

and the make error message.