Compiler/TMS570LS3137: ti-cgt-arm_18.1.1.LTS Compiler options

Someswararao malla

Intellectual 450 points

Part Number: TMS570LS3137

Tool/software: TI C/C++ Compiler

Hi,

In my project we are using both C and C++ files, We are not using the Ti library files.

We have written our own program for memcpy and memset, while compiling getting below errors

unresolved symbol : memcpy x.cpp

though i am not using memcpy in x.xpp, not sure why compiler is throwing this link error.

When i searched in the x.obj file i could find "this memcpy" text.

Please help me why it is throwing error

Regards,

Somesh

over 6 years ago

0 George Mock over 6 years ago

TI__Guru**** 243870 points

I'm not sure, but I suspect that when you ...

Someswararao malla said:
We have written our own program for memcpy and memset

... you didn't qualify those implementations of memcpy and memset as extern "C".

For more background on mixing C and C++ code, please see this FAQ (not from TI).

Thanks and regards,

-George

0 Someswararao malla over 6 years ago in reply to George Mock

Intellectual 450 points

Hi George,

Thanks for the quick reply,

I did not extern it, but my concern is if i am not using any memcpy in the file why compiler says unresolved error.

Regards,

Somesh

0 Someswararao malla over 6 years ago in reply to Someswararao malla

Intellectual 450 points

If i try to extern it i am getting below error

error #340: more than one instance of overloaded function "memcpy" has "C" linkage

0 George Mock over 6 years ago in reply to Someswararao malla

TI__Guru**** 243870 points

So I can reproduce the problem, please submit your CCS project. Zip up your project by following the directions in the article Sharing Projects, then attach the zip to your next post.

Thanks and regards,

-George

0 George Mock over 6 years ago in reply to George Mock

TI__Guru**** 243870 points

Please submit the requested project.

Thanks and regards,

-George

0 George Mock over 6 years ago in reply to George Mock

TI__Guru**** 243870 points

Since it has been a while, I presume you have resolved your problem. I'd appreciate hearing how you resolved it.

Thanks and regards,

-George

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Compiler/TMS570LS3137: ti-cgt-arm_18.1.1.LTS Compiler options