This is a retry of commit 7e31f421a5.
Commit bd56f1590c switches to calling
write_bootloader_message(<options>) in get_args(), which
unintentionally resets the stage field thus breaks two-step OTAs.
This CL adds update_bootloader_message(<options>), which only sets
the command field (to "boot-recovery") and the recovery field (with
the specified options).
Bug: 33534933
Test: Apply a two-step package.
Test: recovery_component_test passes.
Change-Id: Ie0b1ed4053d2d3c97d9cb84310d616b28fcfc72e
Commit bd56f1590c switches to calling
write_bootloader_message(<options>) in get_args(), which
unintentionally resets the stage field thus breaks two-step OTAs.
This CL changes write_bootloader_message(<options>) to only set the
command field (to "boot-recovery") and the recovery field (with the
specified options).
Test: Apply a two-step package.
Change-Id: I6905918812c7d3402cc1524688079066a4d22d29
Add read_bootloader_message_from() and write_bootloader_message_to() to
allow specifying the BCB device (/misc).
Also add testcases for set_stage() and get_stage().
Test: recovery_component_test passes.
Test: Build a recovery image and apply a two-step OTA package.
Change-Id: If5ab06a1aaaea168d2a9e5dd63c07c0a3190e4ae
bootloader_messages merges bootloader_message_writer
and bootloader.cpp, so we can use the same library to
manage bootloader_message in normal boot and recovery mode.
Bug: 29582118
Change-Id: I9efdf776ef8f02b53911ff43a518e035e0c29618
(cherry picked from commit 2f272c0551)
