commit afd802255db87e08145eccab0ef439db817a81d2
author Will Drewry <wad@chromium.org> Tue Oct 05 20:03:07 2010
committer Will Drewry <wad@chromium.org> Tue Oct 05 20:03:07 2010
tree 5091e5c734e763a8d6af8fafd387179bff31ec33
parent c62e44d56f965962b06cef25d57d912df05368d7

first cut: establishes base helper classes and main

cros_boot_mode supports determining the boot mode of a Chrome OS device.
By default, unsupported devices will be considered to be in "normal"
mode and CrOS devices with custom platform support will export the
required interfaces to support indicating "developer" mode.

In addition, there is support for short-circuiting the detection
using a kernel commandline parameter to enable arbitrary testing
of a single, untouched image on supported hardware without recompiling
the kernel, flipping switch, etc.

NOTE: common.mk was copied over from verity/common.mk.
Moved here from http://codereview.chromium.org/3432027/show

TEST=unittests
BUG=chromium-os:824,chromium-os:6864

Review URL: http://codereview.chromium.org/3530001

Change-Id: I32c67557bb8e0f33e980c904d7fd2732b06e22a0