Honored Contributor
Honored ContributorSpecifying the section name will assign the data to a section, you then need the linker script to assign the sections into the correct memory blocks, and probably is the desired order (and possibly at fixed offsets with the blocks).
I also use the linker script to assign constant symbols for IO locations - I arranged for a lot of the IO and all the 'normal' memory to be within a single 64k range so that it can all be accessed relative to %gp. If you have tightly coupled instruction memory and tightly coupled data memory (probably without any data cache) you want the jump tables in the data memory - where you get single cycle access - not in the instruction memory where a slow Avalon cycle is needed. Since we load code using a different avalon master (PCIe) the cpu doesn't even have data access to its instruction memory.
