tree a7ddc6015057e14f2a5ff249d02de1ebdf9659a8
parent 289d80eee416dca7585783a584cbfcf4061a662c
author Doug Zongker <dougz@android.com> 1248312451 -0700
committer Doug Zongker <dougz@android.com> 1248315359 -0700

applypatch changes for patching recovery image

Make some changes needed to applypatch in order to store the recovery
image in the system partition as a binary patch relative to the boot
image:

  - make applypatch use shared libraries, so it's smaller.  It will
    need to be on the main system so it can install the recovery
    image.  Make an applypatch_static binary for use in recovery
    packages (still needed for updating cupcake devices to donut).

  - output the results of patching to an in-memory buffer and write
    that to the partition; there's no convenient /tmp for us to us.
    (This should be basically a no-op in recovery, since /tmp is a
    ramdisk anyway.)