linux kernel module debugging in CCS

Andrey Rublyov

Prodigy 185 points

Other Parts Discussed in Thread: DM3730, SYSBIOS

Hi,

I have linux kernel 2.6.37, Code Composer Studio Version: 5.2.0.00071, DM3730, XDS100v2

I want to debug kernel module i.e pvrsrvkm.ko built in debug version (-O0).

So when I'm connected to the target I choose "Add symbols" and give *.ko file and offsets values taken from

cat /sys/module/pvrsrvkm/sections/.text
0xbf000000
# cat /sys/module/pvrsrvkm/sections/.data
0xbf052a90

At this point I am able to set and stop on proper breakpoint in pvrsrvkm module but I can see "next frame is identical to an existing frame" so

I do not see proper stack only 2 functions look good. Any idea how to solve this problem?

Regards,

Andrey

over 13 years ago

0 Christian Fuchs1 over 12 years ago

Expert 1260 points

Hi,

I've the same problem (not with Linux kernel Debugging, but with my own application).

Do you already have a solution?

If not maybe TI Support can answer this?

Thanks

Regards,

Christian

0 Tushar Barhate1 over 11 years ago in reply to Christian Fuchs1

Intellectual 630 points

Hi Christian,

Please let me know if you know solution for the same. I am facing the same problem.

Thanks & Regards,
Tushar

0 Christian Fuchs1 over 11 years ago in reply to Tushar Barhate1

Expert 1260 points

Hi,

I'm sorry, I also didn't get an answer. I still have this problem. If I find a solution I will post it here.

Regards

Christian

0 nagla dhana over 9 years ago in reply to Christian Fuchs1

Prodigy 50 points

Did you guys find a solution ? I want to revive this thread. I have the same issue on CCSv6 with xds100v2 running latest sdk.

Can anyone help and provide pointers...

0 Christian Fuchs1 over 9 years ago in reply to nagla dhana

Expert 1260 points

Still have no solution, sorry. But I'm not working on the project with this problem anymore.

My other projects created from scratch doesn't have this problem.

Christian

0 nagla dhana over 9 years ago in reply to Christian Fuchs1

Prodigy 50 points

you mean another Linux project ? are you able to do Linux module debugging ?

0 Christian Fuchs1 over 9 years ago in reply to nagla dhana

Expert 1260 points

No Linux, but FreeRTOS or SYSBIOS.

0 Herman Brunner over 9 years ago in reply to Christian Fuchs1

Intellectual 580 points

Generally I did not resolve this because I was involved in other things. Maybe it is worth to start with some simple test module which you could control like optimization level etc. I played with that several years ago so CCS had some issues.

0 nagla dhana over 9 years ago in reply to Herman Brunner

Prodigy 50 points

I am able to load the ko file for symbols. But it does not show the files associated even if I point to the files manually.

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linux kernel module debugging in CCS