On 30/10/2016 09:31, Johann Klammer wrote: > I have been playing with (gcc/binutils)-arm-none-eabi > recently and they have this 'flash configuration field' > in those cortex m0plus thingies. > It is 16 bytes large and sits at address 0x400 of the > flash memory. There's usable flash before and after it. > Currently I am having this config field in its own section > and I am using a linker script to place it at a fixed address. > this does generate a memory hole before it. I think (?) linker scripts are outside the scope of gcc. Perhaps you can try the binutils mailing list? https://sourceware.org/binutils/ Regards.