Access symbols defined in the linker script by application

Question

In my linker script file, I have defined two symbols

define symbol _region_RAM_start__     = 0xC0000000;
define symbol _region_RAM_end__       = 0xC00fffff;         


        

Answer 1

Since they are generic address symbols you are trying to access and not necessarily pointers to a specific type, you don't want to declare them unsigned int, rather declare them as

extern void _region_RAM_START;

then &_region_RAM_START will have the appropriate type 'void *'.