System Workbench for STM32

I found that Semihosting does not work when in release mode (burning)
therefore i used to comment and uncomment the call to initialise_monitor_handles() each time per release/debug

To avoid it i did the following
1. in main.c define weak stub
__weak void initialise_monitor_handles( void )
{
}

2. continue calling initialise_monitor_handles() in main() anyway

If debugging, the initialise_monitor_handles() will be taken from linked library rdimon
If working in release mode, initialise_monitor_handles() will be taken from the main.c implementation (because you are not liked to rdimon library anymore)