daisydog: use minimalistic-mountns minijail profile

The only thing we need access to is /dev/watchdog.

BUG=None
TEST=starting daisydog still works, and killing it -9 causes system to reboot

Change-Id: I5d10636226eb5c13550f77f3af1fca8906842365
Reviewed-on: https://chromium-review.googlesource.com/1067159
Commit-Ready: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Luis Hector Chavez <lhchavez@chromium.org>
1 file changed
tree: 3a92d9e0ac770d7a2c09db6b7c1801082e1dfefe
  1. 51-watchdog.rules
  2. COPYING
  3. Makefile
  4. OWNERS
  5. PRESUBMIT.cfg
  6. README.md
  7. daisydog.c
  8. daisydog.conf
README.md

GPL Code is copied with explicit permission from Daniel Widyanto:
http://embeddedfreak.wordpress.com/2010/08/23/howto-use-linux-watchdog/

The project name is based on Samsung's “daisy” reference board design and I liked this quote from the daisy dog FAQ:

Daisy Dogs are not persnickety little ankle biters

When this daisydog doesn't run, the machine should reset. :)

An alternative code to start with would have been:
https://dev.openwrt.org/ticket/2270

The watchdog project is alot more complicated than what the Chromium OS project needs.