Strange messages on map file while linking for Concerto M3 core

Fabio Mannino

Intellectual 765 points

Hello, while linking an application running on an F28M35 Concerto, I get strange messages on map file and console log.

map file:

00246fd0 00000008 (.cinit.¸ ì½PO.load) [load image, compression = zero_init]

SEGMENT ALLOCATION MAP

00246a48 00246a48 0000010d 00000000 rw-
00246a48 00246a48 0000010d 00000000 rw- ¾7K

console log at link time:

warning #10247-D: creating output section "<§U" without a SECTIONS
specification

They appear from time to time (at least I noticed them from time to time) compiling/linking a code for M3 core.

Using TMS470 Linker PC v4.9.9

Is it a linker's bug or I should worry about something wrong in my code or cmd linker file? if a linker's bug, can it affect my code ? The application seems working correctly regardless such messages appear or not.

Thanks in advance

Fabio

over 9 years ago

Lori Heustess over 9 years ago

TI__Guru* 91990 points

Hi Fabio - I'm going to move this to the compiler forum for the experts there to comment.

Regards
Lori

George Mock over 9 years ago

TI__Guru**** 249420 points

This is definitely a bug in the linker. I can't say whether it affects the final executable file. The only way to know for sure is to understand the root cause of the bug. And for that we need a test case. Is this organized as a CCS project? I'd appreciate if you would submit the project.

Thanks and regards,

-George

Archaeologist over 9 years ago

TI__Guru* 84285 points

A quick check - are there any files in your project with names that include a non-ASCII character?

Fabio Mannino over 9 years ago in reply to Archaeologist

Intellectual 765 points

hello, no, there are no names with non-ASCII character.

Fabio Mannino over 9 years ago in reply to George Mock

Intellectual 765 points

hello, yes, it is a CCS project. Which file do you exactly need for your analysis ?

George Mock over 9 years ago in reply to Fabio Mannino

TI__Guru**** 249420 points

This is a linker problem. Unfortunately, that means we need the entire project. Please see this post for how to do that.

Thanks and regards,

-George

Fabio Mannino over 9 years ago in reply to George Mock

Intellectual 765 points

Hello, I'm back with the same problem. Unfortunately I'm afraid I can't give you the whole project with source code. Here some details:

the section called "¾7K" contains some variables that should be allocated in RAM, instead they are allocated in FLASH and this prevents the code to work. The section takes the place that should be occupied by .TI.crctab. The spurious section seems to have something to do with crctab. If I change the flash section where crctab is located, the "¾7K" follows it being placed just before crctab.

Thanks and best regards

Fabio

Fabio Mannino over 9 years ago in reply to Fabio Mannino

Intellectual 765 points

I realized that I was inadvertently using two different versions of the compiler for a library and for the main project. Using the same version for both the problem disappeared.

Archaeologist over 9 years ago in reply to Fabio Mannino

TI__Guru* 84285 points

As long as you used a linker version that is at least as recent as either input, you should have been fine. What combination of compiler versions were you using to compile these files, and what version to link them?

Fabio Mannino over 9 years ago in reply to Archaeologist

Intellectual 765 points

I was using 5.2.2 for the library and 4.9.9 to build and link the main project.

Archaeologist over 9 years ago in reply to Fabio Mannino

TI__Guru* 84285 points

That is an unsupported combination. You must use at least compiler version 5.2.2 to link a project which mixes 5.2.2 and 4.9.9 object files and/or libraries.

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Strange messages on map file while linking for Concerto M3 core