cleanup project structure

.gitignore

@@ -0,0 +1 @@
+build/*

avr.Makefile

@@ -6,9 +6,11 @@ LFUSE = 0xf1
 HFUSE = 0xdf
 
 TARGET = main
-SRC = $(TARGET).cpp
+SRC = col.cpp hal.cpp main.cpp
 
-OBJDIR = obj
+SRCDIR = src
+INCDIR = inc
+OBJDIR = build/avr
 BACKUPDIR = backup
 
 
@@ -17,9 +19,9 @@ BACKUPDIR = backup
 
 OPT = s
 
-CFLAGS = -mmcu=$(MCU) -I.
-CFLAGS += -DF_CPU=$(F_CPU)UL
-CFLAGS += -O$(OPT)
+CPU = -mmcu=$(MCU) -I.
+CPU += -DF_CPU=$(F_CPU)UL
+CPU += -O$(OPT)
 #CFLAGS += -mint8
 #CFLAGS += -mshort-calls
 CFLAGS += -funsigned-char
@@ -29,13 +31,19 @@ CFLAGS += -fshort-enums
 #CFLAGS += -fno-unit-at-a-time
 CFLAGS += -Wall
 CFLAGS += -Wstrict-prototypes
-hCFLAGS += -Wundef
+CFLAGS += -Wundef
 #CFLAGS += -Wunreachable-code
 #CFLAGS += -Wsign-compare
-CFLAGS += -std=gnu99
 #CFLAGS += -Wa,-adhlns=$(<:%.c=$(OBJDIR)/%.lst)
 #CFLAGS += -flto
 
+CFLAGS += -std=gnu99
+CXXFLAGS += -std=c++11
+
+
+CFLAGS += -I$(INCDIR) -DAVR
+CXXFLAGS += -I$(INCDIR) -DAVR
+
 #LDFLAGS =
 
 
@@ -54,7 +62,8 @@ AVRDUDE_FLAGS = -p $(MCU) -P $(AVRDUDE_PORT) -b $(AVRDUDE_BAUD) -c $(AVRDUDE_PRO
 
 #==== Targets ==================================================================
 
-CC = avr-g++
+CC = avr-gcc
+CXX = avr-g++
 OBJCOPY = avr-objcopy
 OBJDUMP = avr-objdump
 AVRDUDE = avrdude
@@ -64,7 +73,11 @@ REMOVEDIR = rm -rf
 TAIL = tail
 AWK = awk
 
-OBJ = $(SRC:%.c=$(OBJDIR)/%.o)
+
+SRC_PATH = $(SRC:%=$(SRCDIR)/%)
+
+OBJ = $(SRC_PATH:$(SRCDIR)/%.cpp=$(OBJDIR)/%.o)
+
 
 AVRDUDE_WRITE_FLASH = -U flash:w:$(TARGET).hex
 AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep
@@ -72,6 +85,8 @@ AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep
 MEMORYTYPES = flash eeprom fuse lfuse hfuse efuse boot calibration lock signature application apptable prodsig usersig
 
 
+avr: build
+
 all: build
 
 
@@ -103,10 +118,11 @@ help:
 build: elf hex eep lss size
 
 
-elf: $(TARGET).elf
-hex: $(TARGET).hex
-eep: $(TARGET).eep
-lss: $(TARGET).lss
+elf: $(OBJDIR)/$(TARGET).elf
+hex: $(OBJDIR)/$(TARGET).hex
+eep: $(OBJDIR)/$(TARGET).eep
+lss: $(OBJDIR)/$(TARGET).lss
+size: $(OBJDIR)/$(TARGET).size
 
 
 program: flash eeprom
@@ -141,46 +157,55 @@ printfuses: $(TARGET).elf
 	@echo 'FUSES = $(FUSES)'
 
 
-%.hex: %.elf
-	$(OBJCOPY) -O ihex -j .text -j .data $< $@
+$(OBJDIR)/%.hex: $(OBJDIR)/%.elf
+	@$(OBJCOPY) -O ihex -j .text -j .data $< $@
 
 
-%.eep: %.elf
-	-$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" --change-section-lma .eeprom=0 -O ihex $< $@
+$(OBJDIR)/%.eep: $(OBJDIR)/%.elf
+	@$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" --change-section-lma .eeprom=0 -O ihex $< $@
 
 
-%.lss: %.elf
-	$(OBJDUMP) -h -S $< > $@
+$(OBJDIR)/%.lss: $(OBJDIR)/%.elf
+	@$(OBJDUMP) -h -S $< > $@
 
 
 .SECONDARY: $(TARGET).elf
 .PRECIOUS: $(OBJ)
-%.elf: $(OBJ)
-	$(CC) $(CFLAGS) $^ --output $@ $(LDFLAGS)
+$(OBJDIR)/%.elf: $(OBJ)
+	@echo link $^
+	@$(CXX) $(CPU) $^ -o $@ $(LDFLAGS) #-lstdc++
 
 
-$(OBJDIR)/%.o: %.c
-	$(shell mkdir -p $(OBJDIR) 2>/dev/null)
-	$(CC) -c $(CFLAGS) $< -o $@
+$(OBJDIR)/%.o: $(SRCDIR)/%.c
+	@$(shell mkdir -p $(OBJDIR) 2>/dev/null)
+	@echo compile $<
+	@$(CC) -c $(CPU) $(CFLAGS) $< -o $@
+
+$(OBJDIR)/%.o: $(SRCDIR)/%.cpp
+	@$(shell mkdir -p $(OBJDIR) 2>/dev/null)
+	@echo compile $<
+	@$(CXX) -c $(CPU) $(CXXFLAGS) $< -o $@
 
 
-size: $(TARGET).elf
-	$(AVRSIZE) -A $(TARGET).elf
+$(OBJDIR)/%.size: $(OBJDIR)/%.elf
+	@$(AVRSIZE) -A $< | tee $@
 
 
 clean:
-	$(REMOVE) "$(TARGET).hex"
-	$(REMOVE) "$(TARGET).eep"
-	$(REMOVE) "$(TARGET).elf"
-	$(REMOVE) "$(TARGET).lss"
-	$(REMOVEDIR) "$(OBJDIR)"
+	@$(REMOVE) "size"
+	@$(REMOVE) "$(TARGET).hex"
+	@$(REMOVE) "$(TARGET).eep"
+	@$(REMOVE) "$(TARGET).elf"
+	@$(REMOVE) "$(TARGET).lss"
+	@$(REMOVEDIR) "$(OBJDIR)"
+	@echo clean $(TARGET)
 
 
 backup:
-	$(shell mkdir -p $(BACKUPDIR) 2>/dev/null)
+	@$(shell mkdir -p $(BACKUPDIR) 2>/dev/null)
 	@for memory in $(MEMORYTYPES); do \
 	    $(AVRDUDE) $(AVRDUDE_FLAGS) -U $$memory:r:$(BACKUPDIR)/$(MCU).$$memory.hex:i; \
 	done
 
 
-.PHONY: all size build elf hex eep lss clean program flash eeprom readfuses writefuses printfuses backup help
+.PHONY: all build elf hex eep lss clean program flash eeprom readfuses writefuses printfuses backup help

generics.Makefile

@@ -0,0 +1,11 @@
+
+all: linux avr
+
+linux:
+	@make -f linux.Makefile linux
+	
+avr:
+	@make -f avr.Makefile avr
+	
+flash:
+	@make -f avr.Makefile flash

linux.Makefile

@@ -0,0 +1,41 @@
+
+TARGET = main
+
+SRC = col.cpp hal.cpp main.cpp
+
+SRCDIR = src
+INCDIR = inc
+OBJDIR = build/linux
+
+SRC_PATH = $(SRC:%=$(SRCDIR)/%)
+OBJ = $(SRC_PATH:$(SRCDIR)/%.cpp=$(OBJDIR)/%.o)
+
+
+CFLAGS += -std=gnu99
+CXXFLAGS += -std=c++17
+
+
+CFLAGS += -I$(INCDIR) -DLINUX
+CXXFLAGS += -I$(INCDIR) -DLINUX
+
+linux: $(OBJDIR)/$(TARGET)
+
+all: $(OBJDIR)/$(TARGET)
+
+
+.SECONDARY: $(TARGET)
+.PRECIOUS: $(OBJ)
+$(OBJDIR)/$(TARGET): $(OBJ) | $(OBJDIR)
+	@$(CXX) -o $@ $^
+	
+$(OBJDIR)/%.o: $(SRCDIR)/%.c  | $(OBJDIR)
+	@echo compile $<
+	@$(CC) -c $(CFLAGS) $< -o $@
+
+$(OBJDIR)/%.o: $(SRCDIR)/%.cpp | $(OBJDIR)
+	@echo compile $<
+	@$(CXX) -c $(CXXFLAGS) $< -o $@
+
+
+$(OBJDIR):
+	mkdir -p $(OBJDIR)

src/main.cpp

@@ -1,3 +1,6 @@
+
+
 int main() {
 
+	return 0;
 }