buildroot to build toolchain on Linux

You can use "free" to find out the memory usage.

You can try the following to reduce the memory usage.

1. The default busybox use more options than you will need.

You can reduce the commands or features supported by busybox, only keep those you will use.

cd ~/buildroot/build_nios2/busybox

make menuconfig

make

cd ~/buildroot

make

2. reduce the kernel, reduce unused driver and file system.

cd ~/linux-2.6.x

make ...... menuconfig

make

3. remove unused files and nodes in rootfs/etc and rootfs/dev

in file ~/buildroot/target/generic/device_table.txt

in dir ~/buildroot/target/generic/target_skeleton

4. you can delete files at run time when they are no longer in use.