TMS320F28386S: Can Linker Output Values

Ed Sanders

Genius 4105 points

Part Number: TMS320F28386S

Greetings,

For debugging purposes, is there a way to have the linker output information of my choosing such as #define values?

Thank you,

over 2 years ago

0 Siddharth Deshpande over 2 years ago

TI__Mastermind 36655 points

Ed,

Request you to elaborate more on your query. Do you need linke to output all the #define values?

Best Regards

Siddharth

0 Ed Sanders over 2 years ago in reply to Siddharth Deshpande

Genius 4105 points

Hi Siddharth,

In our cmd files, we have #define values which are conditionally created. I would like to be able to have the linker output the values. Is there a way to do that? In general, is there a way to have the linker print information to the console?

Thank you,

0 Siddharth Deshpande over 2 years ago in reply to Ed Sanders

TI__Mastermind 36655 points

Ed,

I am not sure if this is supported. Will forward your query to the CCS team to comment.

Best Regards

Siddharth

0 George Mock over 2 years ago in reply to Ed Sanders

TI__Guru**** 251970 points

Ed Sanders said:
In our cmd files, we have #define values which are conditionally created. I would like to be able to have the linker output the values.

Please consider using the #warn directive in a manner similar to ...

#ifdef SYMBOL
#warn SYMBOL is defined
#else
#warn SYMBOL is not defined
#endif

Thanks and regards,

-George

0 Ed Sanders over 2 years ago in reply to George Mock

Genius 4105 points

Hi George,

I tried that, and it outputs the text which follows "#warn", similarly to an echo in a batch file. Is there a way to output the value of SYMBOL?

Thank you,

+1 George Mock over 2 years ago in reply to Ed Sanders

TI__Guru**** 251970 points

Ed Sanders said:
Is there a way to output the value of SYMBOL?

Unfortunately, there is no feature designed for that exact purpose.

As a workaround, here is suggestion that might be useful.

Assign the preprocessor name SYMBOL to an ordinary symbol in the build. For example ...

#define SYMBOL 0xabcd
symbol_never_used = SYMBOL;

Once the program is built, you can see the value of symbol_never_used in the map file ...

$ findstr symbol_never_used file.map
abs   0000abcd  symbol_never_used
abs   0000abcd  symbol_never_used

Or, by inspecting the symbols in the executable file ...

$ nm2000 stub.out | findstr symbol_never_used
0000abcd A symbol_never_used

Thanks and regards,

-George

0 Ed Sanders over 2 years ago in reply to George Mock

Genius 4105 points

That works really well George. I haven’t seen that syntax before, so I think it’s going to open a door to some new knowledge. Is there anything which describes it and/or a normal use case for it?

Thank you,

0 George Mock over 2 years ago in reply to Ed Sanders

TI__Guru**** 251970 points

To learn more about creating symbols in the linker command file, please search the C28x assembly tools manual for the sub-chapter titled Assigning Symbols at Link Time.

Thanks and regards,

-George

0 Ed Sanders over 2 years ago in reply to George Mock

Genius 4105 points

Found it! Thank you George.

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TMS320F28386S: Can Linker Output Values