How to add asm function use CCS5.0.1

Eric Mao

I use the ccs5.0.1, Now I have a C project can work correctly, I want to do some assembly optimize via write assemble function. The assemble fiile can compile correct independently, when link the project, the linker can't find the assemble function, but the .obj file of the assemble file is generate under the debug folder.

Following is my test project:

5670.Test.rar

over 14 years ago

0 AartiG over 14 years ago

TI__Guru**** 173310 points

Eric,

Your project is set for EABI mode (which is the default when creating a new project for C66x device on CCS 5.x). In EABI mode the symbol name for the assembly routine does not need the underscore. So your asm file should contain the following:

.global FuncTest
FuncTest:

This wiki article contains more details:
http://processors.wiki.ti.com/index.php/C6000_EABI_Migration#Assembly_Code_Changes_.28C_and_C.2B.2B_ABI_Changes.29

0 Eric Mao over 14 years ago in reply to AartiG

Genius 4330 points

AartiG:

Thank you!

0 Eric Mao over 14 years ago in reply to Eric Mao

Genius 4330 points

Hi AartiG:

I can't add breakpoint in the asm function. After double click the line I want to add a breakpoint, the breakpoint manager said "No code is associated with *.asm",line 8 in any loaded symbols"

0 AartiG over 14 years ago in reply to Eric Mao

TI__Guru**** 173310 points

This issue sounds the same as the bug bring tracked in this post. You should be able to set the breakpoint in the disassembly window, however the source line correlation between disassembly and source window for assembly source files is currently not working.

0 Eric Mao over 14 years ago in reply to AartiG

Genius 4330 points

Now I can add breakpoint under the Disassembly window, but after I change the asm function and rebuild ,reload the *.out file, the code in the Disassembly windows still didn't changed.

0 AartiG over 14 years ago in reply to Eric Mao

TI__Guru**** 173310 points

Eric Mao said:

Now I can add breakpoint under the Disassembly window, but after I change the asm function and rebuild ,reload the *.out file, the code in the Disassembly windows still didn't changed.

I'm not sure why this would be the case. I would expect the disassembly window to change to the new code and I haven't seen issues with it. I am assuming you are loading program and not just symbols. Have you tried refreshing the disassembly view using the "Refresh view" icon in the window to see if that helps?

0 Eric Mao over 14 years ago in reply to AartiG

Genius 4330 points

Hi AartiG:

"Refresh view" can re-synchronization the code, thank you very much!

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How to add asm function use CCS5.0.1