Could you please diagnose a AISgen error message?

Hi Champ,

I'd like to know even whether the AISgen(D800K003 v0.7.0.0) support  ELF input or not A.S.A.P.

Your cooperation would be appreciated.

Best regards,
j-breeze

Hi J-Breeze

I apologize for the delay in responding back to this forum post. Unfortunately the current AISGEN D800K003 does not support ELF. This is in the to-do list for a subsequent release for this tool. I don't have the time lines for when this will be available, once I do, i will update this forum post.

We regret the inconvenience this might be causing you/your customer. 

Regards

Mukul

Hi Mukul-san,

Thank you for your reply.

I realized that the tool did not support ELF.  However, could I ask you to put up the priority of the subsequent release?
My customer is working for implementing dynamic linking. So they have to use ELF.

Your considerrations would be appreciated.

Best regards,
j-breeze 

Hi Mukul-san,

I'd appreciated your kindly consideration.
I contacted the local FAE in Japan and he will contact you soon.

Thanks in advance for your support.

Best regards,
j-breeze

Hi Mukul-san,

I'd like to ask you a favor again.
It's about AISgen warning messages below, mentioned in my first post.

  WARNING: Memory overlap from 0xC03AC0F0 to 0xC03AC0FF
  WARNING: Memory overlap from 0xC03AC100 to 0xC03AC1EF

If you have any, could you please let me know why  the warning messages are indicated?

Thanks in advance for your support.

Best regards,
j-breeze

Hi j-breeze,

Can you see from the map file of your Boot.out file what section is being loaded in the region 0XC03ACOFF and 0XC03AC1EF.  Did you see any warnings from the linker when you built the out file? Are you passing 2 input files to the AISGen tool?  If yes, can you confirm that there is no overlap in the linker sections in the DSP UBL and the application code.

Regards,

Rahul

Hi Rahul,

Thank you for your advice.

I checked out  the map file and the sections below was being loaded in the region 0xC00CA528 and 0xC00CA53F.
(The region was changed due to program updated.)

----------------------------------------------------------------------------------------------------------------------------------------------------------------

  .text.1    0    c00881a0    000423a0

                      :
                      :
                      :

                    c00ca480    00000038     c674xfastMath_elf.lib : exp2sp.obj (.text:hand)
                    c00ca4b8    00000038                           : expsp.obj (.text:hand)
                    c00ca4f0    00000038                           : log10sp.obj (.text:hand)
                    c00ca528    00000018     --HOLE-- [fill = 0]

  .const.2   0    c00ca528    00000008    
                    c00ca528    00000008     ParameterEdit.obj (.const:.string)

  .text.2    0    c00ca530    00000010    
                    c00ca530    00000010     Standby.obj ($Tramp$S$$EnterStandby) 

----------------------------------------------------------------------------------------------------------------------------------------------------------------

"const.2" and "text.2" were overlaped with "--HOLE--" of "text.1".

The linker v7.3.4 divided the sections automatically and  didn't generate any warnings.

I don't know why the overlaps occur.
So, could you please let me know the causes?
Are there anything else what should I check out?

Thanks in advance for your cooperation.

Best regards,
j-breeze 

Hi J-breeze,

I don`t have complete understanding of how the linker works in this case but could you specify how you have specified the sections in the linker command file and if there is any flag that you have turned on in the linker that is suppressing any warnings. Do you have -v option with your linker perhaps that should give you a complete dump of the linker output.

I would also try the following in the linker command

.const:
 {
  " ${PATH_TO_OBJFILES}/ParameterEdit.obj"(.const.2)
 }
 .text:
 {
  " ${PATH_TO_OBJFILES}/Standby.obj"(.text.2)
 }

PATH_TOOBJFILES is the path to the folder that contains the obj file Standby.obj and ParameterEdit.obj.

This instructs the linker to place the split sections(.text.2 and .const.2) in the same place as the rest of the .text and .const section. If this doesn`t work I would have to consult an compiler expert to see how to resolve this issue. By the way did you try to boot the resulting AIS image (ignoring the warning), that might tell us how critical those warnings are.

Regards,

Rahul

Hi Rahul,

Thank you for your suggestion.
I'll try the linker command soon, that you showed me.

And, the AIS image ignoring the warning works well so far because the sections are overlaped with the "HOLE" area, I guess.
So, those overlap warnings might not be critical.

However, I'd like to clarify the root causes and how to resolve this issue.

The overlaps might be "bug" in the linker v7, according to a forum below.

  o Fetch packet exception thrown from trampolined functions
     (http://e2e.ti.com/support/dsp/c6000_multi-core_dsps/f/639/p/164715/609248.aspx)

Could you please refer to the forum,   especially last 2~3 posts in the forum.

Thanks in advance for your cooperation.

Best regards,
j-breeze

Hi Rahul,

I hope that you would consult an compiler expert about this issue.
If you have any, please let me know.

Your help would be highly appreciated.

Best regards,
j-breeze