Yes there is something like that. We've put a 8K limitation to make sure compiled applications are debuggable using the standard STM32-Primer.
Let me explain: the STM32-Primer (standard version) can debug up to 32K of code. The CircleOS takes around 24K, so 8K are remaining to get a fully working 32K block of debuggable code.
If you don't want to debug (or if you have a STM32-Primer PRO), it's fine. You should follow these steps :
1. Open the file Circle_App.ld located in your application folder
2. Look for this block:
3. replace the FLASH line by this one :
You will then have plenty of space to link you application!
regards
Lionel