tree c11cac2d3051264accc36dee7ef9a735f4420659
parent d9df92e22aca939857c5bc9ecb130ef22307ccc1
author Sam Ravnborg <sam@mars.ravnborg.org> 1144754672 +0200
committer Sam Ravnborg <sam@mars.ravnborg.org> 1144754672 +0200

kbuild: rebuild initramfs if content of initramfs changes

initramfs.cpio.gz being build in usr/ and included in the
kernel was not rebuild when the included files changed.

To fix this the following was done:
- let gen_initramfs.sh generate a list of files and directories included
  in the initramfs
- gen_initramfs generate the gzipped cpio archive so we could simplify
  the kbuild file (Makefile)
- utilising the kbuild infrastructure so when uid/gid root mapping changes
  the initramfs will be rebuild

With this change we have a much more robust initramfs generation.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>