Root region and the initial entry point

If the initial entry point is not in a root region, the link fails and the linker gives an error message.

Example

Root region with the same load and execution address.

LR_1 0x040000          ; load region starts at 0x40000   
{                      ; start of execution region descriptions      
    ER_RO 0x040000     ; load address = execution address
    {
        * (+RO)        ; all RO sections (must include section with 
                       ; initial entry point)
    }
    …                ; rest of scatter-loading description
}