On 07/12/2017 12:42 PM, yyurtcan wrote:
Hi, I have p4080ds and lauterbach(T32) hardware debugger. As known, u-boot has written both assembly and C language. I can debug all u-boot code in assembly language(C code also converted to assembly). However, it is hard to follow. How can I debug u-boot C code in C language(not assembly)? What I mean is that at the beginning there is assembly part after that whole code is C language. I want to debug C code in C language not assembly language. Here is my script that is enable debugging u-boot in assembly language.(I have already load u-boot to Nor Flash). If it is not possible, I want to add debug symbols to assembly code for linking C code. To do that what are the requirement to rebuild uboot?
With T32 please pay attention to:
1. If the code is after or before relocation - u-boot relocates itself, so the location of debugging symbols varies.
2. The C code before relocation is rather tiny, so for 99% you would like to debug the "after" relocation part.
TO do that - please type 'bdinfo" and look into relocation offset.
This value should be added to T32's command to load symbols:
data.load.elf <elf with debugging symbols> <offset> /nocode
--------Script Start ------------------- SYStem.Reset SYStem.CPU P4080 CORE.ASSIGN 1 MAP.BOnchip 0xFFFFF000--0xFFFFFFFF SYStem.UP Data.dump 0xFFFFF000--0xFFFFFFFF --------Script End-------------------
Best regards.
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