Restore .map file creation, silence generated message

Makefile

@@ -248,6 +248,7 @@ include audio_rules.mk
 # NOTE: Tools must have been built prior (FIXME)
 # so you can't really call this rule directly
 generated: $(AUTO_GEN_TARGETS)
+	@: # Silence the "Nothing to be done for `generated'" message, which some people were confusing for an error.
 
 %.s:   ;
 %.png: ;
@@ -364,6 +365,7 @@ endif
 # Final rules
 
 # Elf from object files
+LDFLAGS = -Map ../../$(MAP)
 $(ELF): $(LD_SCRIPT) $(LD_SCRIPT_DEPS) $(OBJS)
 	@cd $(OBJ_DIR) && $(LD) $(LDFLAGS) -T ../../$< --print-memory-usage -o ../../$@ $(OBJS_REL) $(LIB) | cat
 	@echo "cd $(OBJ_DIR) && $(LD) $(LDFLAGS) -T ../../$< --print-memory-usage -o ../../$@ <objs> <libs> | cat"