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.
EXPORTS
CacheSize__6DPTestRUiN21 @ 1 NONAME R3UNUSED ; DPTest::CacheSize(unsigned int &, unsigned int &, unsigned int &)
EventInfo__6DPTestR5TDes8 @ 2 NONAME R3UNUSED ; DPTest::EventInfo(TDes8 &)
FlushCache__6DPTest @ 3 NONAME R3UNUSED ; DPTest::FlushCache(void)
SetCacheSize__6DPTestUiUi @ 4 NONAME R3UNUSED ; DPTest::SetCacheSize(unsigned int, unsigned int)
Attributes__6DPTest @ 5 NONAME R3UNUSED ; DPTest::Attributes(void)