PawletOS/android_bootable_recovery
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Boot control HAL based on the A/B headers.

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The added bootctrl.bcb module implement the legacy interface for the
bootctrl HAL based on the Boot Control Block (BCB) and the headers
already specified in the booloader_message library.

This serves as a reference implementation of the boot_control HAL.

Bug: 32707546
Test: Tested internally that a device can use this HAL to flip slots and
recovery from a /misc wipe.

Change-Id: Ic02e5aaf4de7d0a1780eac4e8705dae20d0b3e10
This commit is contained in:
Alex Deymo
2016-11-08 15:46:07 -08:00
committed by Alex Deymo
parent b6609f8895
commit fb00d82f32
5 changed files with 448 additions and 0 deletions
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7
bootloader_message/bootloader_message.cpp
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@@ -117,6 +117,13 @@ static bool write_misc_partition(const void* p, size_t size, const std::string&
return true;
}
std::string get_bootloader_message_blk_device(std::string* err) {
std::string misc_blk_device = get_misc_blk_device(err);
if (misc_blk_device.empty()) return "";
if (!wait_for_device(misc_blk_device, err)) return "";
return misc_blk_device;
}
bool read_bootloader_message_from(bootloader_message* boot, const std::string& misc_blk_device,
std::string* err) {
return read_misc_partition(boot, sizeof(*boot), misc_blk_device,