Enhance the base/rom extension to generate the symbol file of the rom built.
The symbol file is placed in epoc32/rom/<baseport_name>, along with the rom log and final oby file.
# component name "Text Window Server"
component base_e32_ewsrv
source \sf\os\kernelhwsrv\kernel\eka\drivers\edisp
source \sf\os\kernelhwsrv\kernel\eka\ewsrv
binary \sf\os\kernelhwsrv\kernel\eka\ewsrv all
exports \sf\os\kernelhwsrv\kernel\eka\ewsrv
notes_source \component_defs\release.src
ipr E