5.7.1.22 Reserve Option

The -mreserve=ranges option allows you to reserve memory normally used by the program. This option has the general form:
-mreserve=space@start:end

where space dictates the regions in which reservation will take place; and start and end are addresses, denoting the memory range to be excluded. For example, -mreserve=data@0x80000200:0x800002FF will reserve memory in both kseg0_data_mem and kseg1_data_mem regions.