tree a6abf13a37152c07a2a37f1b0eba3ac452b824c4
parent 4edc75daa696f9e6fa39205117233ed68dcbed43
author Nam T. Nguyen <namnguyen@chromium.org> 1420746207 -0800
committer ChromeOS Commit Bot <chromeos-commit-bot@chromium.org> 1421473752 +0000

Add cgpt_wrapper binary to transparently support NAND

This CL adds a "cgpt_wrapper" binary that will forward to "cgpt" binary
as needed to transparently support NAND.

The idea is that if we are working with an MTD device, this binary will
exec out to "flashrom" to read in the GPT section, then exec out to the
actual "cgpt" binary to work on that file, and finally write it back
with "flashrom".

This CL introduces a make target "install_mtd" to install this wrapper.
The corresponding ebuild should use this make target when "mtd" USE flag
is on.

BUG=chromium:442518
BRANCH=none
CQ-DEPEND=CL:239573
TEST=unittest and some trial runs with mtdram
TEST=test on a real device with NOR flash and NAND

Change-Id: I54534afa9a970ec858f313f698c0eb210c827477
Reviewed-on: https://chromium-review.googlesource.com/239580
Tested-by: Nam Nguyen <namnguyen@chromium.org>
Reviewed-by: Daniel Ehrenberg <dehrenberg@chromium.org>
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
Commit-Queue: Nam Nguyen <namnguyen@chromium.org>