TMS570LS3137-EP: Combining multiple elf files for a single debug symbol file

Sagar S

Part Number: TMS570LS3137-EP

We have multiple .out (elf) and .out (hex tek format) in the project generated using ARM compiler 20.2.4 LTS on CCS.

The final project delivery requirement is to have single elf and single tek file.

I could create single tek by concatenating multiple tek files. Now I need all elf file to be combined to get a single elf file, which is necessary for loading symbols in CCS.

So how could I get a single elf file combining multiple elf files.

Or Is there a way I could extract all the debug symbols information from multiple elf file and put in a single file, which can then be used for debugging,

over 3 years ago

0 jagadish gundavarapu over 3 years ago

TI__Guru 74061 points

Hi Sagar,

We started to work on your issue and we will give you an update soon.

Thanks & Regards.

Jagadish.

0 Sagar S over 3 years ago in reply to jagadish gundavarapu

Prodigy 40 points

Hi Jagadish,

You have any updates on the out file.

0 jagadish gundavarapu over 3 years ago in reply to Sagar S

TI__Guru 74061 points

Hi Sagar,

Sorry for the delay, right now i don't have any update to share you on this. I go through all old threads and meterials related to this and i don't see any clear information to work it out. I am discussing with my internal team now and i will give you update in couple of days.

Thanks for your patience.

Thanks & Regards,

Jagadish.

0 Chester Gillon over 3 years ago

Guru 92251 points

Sagar S said:
So how could I get a single elf file combining multiple elf files.

Found ARM-CGT: Combine two binaries which says you should be able to use the armhex utility to combine multiple elf files.

If you get an error of the form "error: memory ranges "image_6" and "image_7" out of order" then see also ARM-CGT: error: memory ranges "image_1" and "image_2" out of order

0 Sagar S over 3 years ago in reply to Chester Gillon

Prodigy 40 points

Thanks.

armhex is merging elf files. But the merged elf file is not complete I believe. It does not have the debug symbol information.

When I loaded the merged file I am not able to debug (shows no debug information available).

Also I see that the size of merged elf file is less than than combined sizes of individual elf files.

I have used the below option to merge. Please let know if I could merge debug information contents of individual elf files.

armhex --load_image --load_image:format=elf --load_image:endian=big --load_image:combine_sections=true --load_image:output_symbols=true 1.out 2.out 3.out 4.out 5.out 6.out -o merged.out

0 Chester Gillon over 3 years ago in reply to Sagar S

Guru 92251 points

Sagar S said:
Please let know if I could merge debug information contents of individual elf files.

At the moment I'm not sure how to merge the debug information of individual elf files.

The CCS debugger has the option to Add Symbols after launching a debug session has started - see After Launch. As work-around to allow debugging could Use "Add Symbols" multiple times, selecting each elf .out file in turn.

0 jagadish gundavarapu over 3 years ago in reply to Chester Gillon

TI__Guru 74061 points

Hi Sagar,

I know a command to remove the debug information in an elf file but don't know how to merge debug information,

armobjcopy -O elf32-littlearm --strip-all --strip-debug --strip-unneeded application.out application_new.out

The above command will remove the debug information from application elf file and creates a new application elf file.

Thanks & Regards,

Jagadish.

0 Sagar S over 3 years ago in reply to jagadish gundavarapu

Prodigy 40 points

As I understand currently there is no tool or a way to merge debug information in elf files. Closing the thread. Thanks.

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TMS570LS3137-EP: Combining multiple elf files for a single debug symbol file