Re: [Sdcc-user] Need help with Makefile

[David Lucena]

> > 
> > .obj/%.o : %.c $(PRJ_HEAD)
> >     @-mkdir -p $(dir $@)
> >     $(CC) $(CC_FLAGS) -c $< -o $@

Calling the shell at every source file just to try to make the destination
directory is very inefficient. You should make a "prepare" rule that
just creates everything that is needed.


By the way, for the linker, I just use a file like this:

--
-m
-j
-x
-i /home/yakumo/dev/prj/msx/sdk/build/demos/testmake/bin/testmake
-b _CODE = 0x4020
-b _DATA = 0x8000
-k /usr/local/share/sdcc/lib/z80
-l z80
/home/yakumo/dev/prj/msx/sdk/build/libraries/startup/bin/crt0msx_rom.o
/home/yakumo/dev/prj/msx/sdk/build/demos/testmake/obj/psg.o
/home/yakumo/dev/prj/msx/sdk/build/demos/testmake/obj/debug.o
/home/yakumo/dev/prj/msx/sdk/build/demos/testmake/obj/main.o
/home/yakumo/dev/prj/msx/sdk/build/demos/testmake/obj/psgasm.o
/home/yakumo/dev/prj/msx/sdk/build/demos/testmake/obj/test.o
-l z80.lib



Then in the linking rule I use:

$(BIN_DIR_POSIX)/$(TARGET_NAME).ihx: $(OBJ_FILES_FULL_POSIX)
        @echo -n;                                                               
                         \
        echo -Creating link file;                                               
                         \
        echo -- > $(BIN_DIR_POSIX)/$(TARGET_NAME).lnk;                          
                         \
        echo -m >> $(BIN_DIR_POSIX)/$(TARGET_NAME).lnk;                         
                         \
        echo -j >> $(BIN_DIR_POSIX)/$(TARGET_NAME).lnk;                         
                         \
        echo -x >> $(BIN_DIR_POSIX)/$(TARGET_NAME).lnk;                         
                         \
        echo -i '$(BIN_DIR_POSIX)/$(TARGET_NAME)' >> 
$(BIN_DIR_POSIX)/$(TARGET_NAME).lnk;                \
        echo -b _CODE = $(CODE_LOC) >> $(BIN_DIR_POSIX)/$(TARGET_NAME).lnk;     
                         \
        echo -b _DATA = $(DATA_LOC) >> $(BIN_DIR_POSIX)/$(TARGET_NAME).lnk;     
                         \
        echo "-k $(COMPILER_LIB_PATH)" >> $(BIN_DIR_POSIX)/$(TARGET_NAME).lnk;  
                         \
        echo -l z80 >> $(BIN_DIR_POSIX)/$(TARGET_NAME).lnk;                     
                         \
        echo '$(STARTUP_DIR_POSIX)/bin/$(STARTUP_CODE_FILENAME)' >> 
$(BIN_DIR_POSIX)/$(TARGET_NAME).lnk; \
        for file in $(OBJ_FILES_FULL_POSIX); do                                 
                         \
            echo $$file >> $(BIN_DIR_POSIX)/$(TARGET_NAME).lnk;                 
                         \
        done;                                                                   
                         \
        echo "-l z80.lib" >> $(BIN_DIR_POSIX)/$(TARGET_NAME).lnk;               
                         \
        echo -Linking;                                                          
                         \
        $(LD) $(LDFLAGS) -f $(BIN_DIR_POSIX)/$(TARGET_NAME).lnk;

As you can see in the target I create the link file, and specify it through the 
-f
parameter.


Regards.



      
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