Debugging U-Boot on ARMv8 with Eclipse/CodeWarrior TAP

[stacym]

Hi all,

I am working currently with the LS1043A-RDB board.  I'd like to be prepared for custom hardware arriving shortly.  I've followed the instructions in the Document "Use CodeWarrior for ARMv8 to Debug U-boot and Linux Kernel and Bring up Bare Boards" written by Yiping Wang and also tried "ANxxxx Building U-Boot in CodeWarrior ARMv8"  I am able to get pretty far, build U-Boot, burn U-Boot into NOR flash, verify image in flash.  I created build and debug configurations per instructions in documents, trying both the attach method and the debug method.  Both methods fail in the same way, the debug phase aborts with a message:  Launching u-boot debug has encountered a problem:

Error in final launch sequence

    Failed to execute MI command:

    -break-insert -t _start

Error message from debugger back end:

Function "_start" not defined.

Another dialog box also appears:  One or more sections of the remote executable does not match the loaded

Section .data, range 0x60100000 - 0x601a1c4b: MIS-MATCHED!

I'm using CW Version 11.2.3 Build 170322

Anyone do anything similar with better luck?

Thanks,

Stacy

[yipingwang]

Hello Stacy,

Please check whether u-boot programmed to NOR flash can be set up successfully.

Did you import the elf file "u-boot" into CodeWarrior to create a debug project?

Please make sure u-boot elf file import into CodeWarrior is from the same build with the binary file programmed to NOR flash.

Please follow the section "Debug u-boot with CodeWarrior for ARMv8" in the step by step document Use CodeWarrior for ARMv8 to Debug U-boot and Linux Kernel and Bring up Bare Boards to debug u-boot with the Attach method, I have verified it previously.

If your problem remains, please send your CodeWarrior debug project to me to do more investigation.

Have a great day,
TIC

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[brettstahlman]

Yiping,

I'm using flex-builder to build u-boot, and this produces a .bin but no .elf binary. How to I build a debuggable ELF using flex-builder? There don't appear to be any documented options for this...

Thanks,

Brett S.

[addiyi]

Check chapter 8.1 from \Freescale\CW4NET_v2017.03\CW_ARMv8\ARMv8\Help\PDF\ARMv8_Targeting_Manual.pdf

Adrian