[PATCH v2 4/6] cmd: bcb: introduce 'ab_dump' command to print BCB block content

Mattijs Korpershoek mkorpershoek at baylibre.com
Mon Sep 30 17:52:27 CEST 2024


Hi Dmitry,

Thank you for the patch.

On jeu., sept. 12, 2024 at 00:49, Dmitry Rokosov <ddrokosov at salutedevices.com> wrote:

> It's really helpful to have the ability to dump BCB block for debugging
> A/B logic on the board supported this partition schema.
>
> Command 'bcb ab_dump' prints all fields of bootloader_control struct
> including slot_metadata for all presented slots.
>
> Output example:
> =====
>> board# bcb ab_dump ubi 0#misc
>> Read 512 bytes from volume misc to 000000000bf07580
>> Read 512 bytes from volume misc to 000000000bf42f40
>> Bootloader Control:       [misc]
>> Active Slot:              _a
>> Magic Number:             0x42414342
>> Version:                  1
>> Number of Slots:          2
>> Recovery Tries Remaining: 0
>> CRC:                      0x2c8b50bc (Valid)
>>
>> Slot[0] Metadata:
>> 	- Priority:         15
>> 	- Tries Remaining:  0
>> 	- Successful Boot:  1
>> 	- Verity Corrupted: 0
>>
>> Slot[1] Metadata:
>> 	- Priority:         14
>> 	- Tries Remaining:  7
>> 	- Successful Boot:  0
>> 	- Verity Corrupted: 0
> ====
>
> Signed-off-by: Dmitry Rokosov <ddrokosov at salutedevices.com>

Reviewed-by: Mattijs Korpershoek <mkorpershoek at baylibre.com>

> ---
>  boot/android_ab.c    | 68 ++++++++++++++++++++++++++++++++++++++++++++
>  cmd/bcb.c            | 35 +++++++++++++++++++++++
>  include/android_ab.h | 10 +++++++
>  3 files changed, 113 insertions(+)
>


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