用tmpfs编译openwrt

b.sh

#!/bin/bash

#setup environment for tmpfs build for openwrt/x-wrt.

mkdir -p tmpfs_local/host tmpfs_local/hostpkg
mkdir tmpfs

#mount tmpfs size=24G (total 32G ram) for build_dir.
sudo mount -t tmpfs -o size=24G tmpfs tmpfs/

test -e tmpfs/host || ln -s ../tmpfs_local/host tmpfs/
test -e tmpfs/hostpkg || ln -s ../tmpfs_local/hostpkg tmpfs/
rm -f build_dir
test -e build_dir || ln -s tmpfs build_dir