This option makes the load and execution region containing
the RW and ZI output section position-independent. If this option
is not used the region is marked as absolute. This option requires
a value for
--rw_base=0 is assumed. Usually each
writable input section must be read-write position-independent (RWPI).
If this option is selected, the linker:
checks that the
PIattribute is set on input sections to any read-write execution regions
checks that relocations between sections are valid
generates entries relative to the static base in the table
This is used when regions are copied, decompressed, or initialized.