Produce a sorted list of all local symbols in the map file.

src/Makefile

 RANLIB		?= $(CROSS_COMPILE)ranlib
 OBJCOPY		?= $(CROSS_COMPILE)objcopy
 NM		?= $(CROSS_COMPILE)nm
+OBJDUMP		?= $(CROSS_COMPILE)objdump
 PARSEROM	?= $(PERL) ./util/parserom.pl
 MAKEROM		?= $(PERL) ./util/makerom.pl
 MKCONFIG	?= $(PERL) ./util/mkconfig.pl
 SYMCHECK	?= $(PERL) ./util/symcheck.pl
+SORTOBJDUMP	?= $(PERL) ./util/sortobjdump.pl
 NRV2B		?= ./util/nrv2b
 
 # Location to place generated files

src/Makefile.housekeeping

 $(BIN)/%.tmp : $(BLIB) $(MAKEDEPS) $(LDSCRIPT) 
 	$(LD) $(LDFLAGS) -T $(LDSCRIPT) $(TGT_LD_FLAGS) $(BLIB) -o $@ \
 		-Map $(BIN)/$*.tmp.map
+	$(OBJDUMP) -ht $@ | $(SORTOBJDUMP) >> $(BIN)/$*.tmp.map
 
 # Show a linker map for the specified target
 #