What is the most efficient and elegant way develop/debug linux kernel

Question

Recently I start to develop the linux device driver,

I face a problem, when I want to debug with kernel code, and add some printk debug message in the k

Answer 1

1. use ccache; this speeds up subsequent builds significantly

2. boot over network; bootloader of embedded devices have usually some tftp download mechanism; for PC you can use PXE boot

3. place the modules on an NFS root filesystem which gets filled by make modules-install INSTALL_MOD_PATH=$nfs-root

4. when you work on a single driver only, you can build only this by make -C $kernelsources M=$driverpath