Assigning sections to a root region

In RVCT v2.1 and earlier, the only library sections that must be placed in a root region, are __main and the region tables. However, with the implementation of RW data compression there are more sections that must be placed in a root region. The linker can place all these sections automatically with InRoot$$Sections.

Use a scatter-loading description file to specify a root section in the same way as a named section. Example 5.19 uses the section selector InRoot$$Sections to place all sections that must be in a root region in a region called ER_ROOT.

LR_FLASH 0x0
{
    ER_ROOT 0x0                         ; root region at 0x0
    {
        vectors.o (Vectors, +FIRST)     ; vector table
        * (InRoot$$Sections)            ; all library sections that must be
                                        ; in a root region
    }
    .	..                                 ; rest of scatter description...
}