Don't compile uncalled functions

[colinluan]

I am developing my project with RT1064 + MCUXpresso. I found some unused functions are compiled, I would not like to compile them. How do I need to set in the MCUXPresso, anyone can help me? thanks.

[abnxpweb]

Unused functions should get automatically removed by the link step using its "unused section elimination" optimisation (unless you have changed the project default settings). More information in this old LPCXpresso FAQ, which still applies to MCUXpresso IDE.

https://community.nxp.com/t5/LPCXpresso-IDE-FAQs/Unused-Section-Elimination/m-p/475002

Hope this helps!

[Masmiseim]

Hello colinluan,

gcc (which is used inside of MCUXPresso) can do this for you. Compare this guide

https://stackoverflow.com/questions/6687630/how-to-remove-unused-c-c-symbols-with-gcc-and-ld

Best Regards

[danielchen]

HI @colinluan 

You can exclude resource from build

Please refer to below link for more details

https://mcuoneclipse.com/2014/07/22/exclude-source-files-from-build-in-eclipse/

Regards

Daniel

[colinluan]

hi,@danielchen

I only want to exclude unused functions instead of excluding whole file. Is there any way to implement it?

[danielchen]

for unused function, I would suggest you use 

#if 0

#endif.

Regards

Daniel