OpenOCD cannot get flash map when using mcuboot instead of esp-idf bootloader (OCD-621)

[jaybuckeye06]

OpenOCD version

v0.11.0-esp32-20211220

Operating System

Mac OS X

Using an IDE ?

n/a

OpenOCD command line

openocd -f board/esp32-wrover-kit-3.3v.cfg -c "init; halt; esp32 appimage_offset 0x10000"

ESP-IDF version

v4.2

Problem Description

• When using esp-idf image format, openocd gets flash map just fine.

• When using mcuboot, although the partition table keeps the same, openocd cannot find flash map.

This is more of a feature request rather than an issue.

Debug Logs

No response

Expected behavior

OpenOCD should be able to find the flash map no matter what bootloader is used.

Screenshots

No response

[gerekon]

Hi @jaybuckeye06

OpenOCD retrieves flash map from app image on flash. As far as I understand mcuboot uses different header format for app images on flash as compared to IDF bootloader. So I do not think this is a bug.

But, I agree that it would be good to support mcuboot image formats

[erhankur]

Looks like in the near future, we do not have plans to support MCUboot image format.

Also, AFAIK there is no table to get flash mapping from the image like we do for the IDF bootloader. It is written only in the linker.