Restructure

Makefile

@@ -6,15 +6,24 @@ TARGET = blink
 TARGET_MCU?=CH32V003
 NEWLIB=/usr/arm-none-eabi/include
 CFLAGS=-g -Os -flto -ffunction-sections -fdata-sections -fmessage-length=0 -msmall-data-limit=8
-LDFLAGS+=-Wl,--print-memory-usage -Wl,-Map=$(TARGET).map
-PREFIX := riscv64-linux-gnu
-CC := $(PREFIX)-gcc
+LDFLAGS+=-Wl,--print-memory-usage -Wl,-Map=$(TARGET).map,--build-id=none
+TOOL_PREFIX := riscv64-linux-gnu
+CC := $(TOOL_PREFIX)-gcc
+OBJDUMP := $(TOOL_PREFIX)-objdump
+OBJCOPY := $(TOOL_PREFIX)-objcopy
 
-# riscv64-linux-gnu-gcc -E -P -x c -DTARGET_MCU=CH32V003 -DMCU_PACKAGE= -DTARGET_MCU_LD=0 -DTARGET_MCU_MEMORY_SPLIT= ../../ch32fun/ch32fun.ld > ../../ch32fun/generated_ch32v003.ld
-# riscv64-linux-gnu-gcc -o blink.elf ../../ch32fun/ch32fun.c blink.c   -g -Os -flto -ffunction-sections -fdata-sections -fmessage-length=0 -msmall-data-limit=8 -march=rv32ec -mabi=ilp32e -DCH32V003=1 -static-libgcc -I/usr/arm-none-eabi/include -I../../ch32fun/../extralibs -I../../ch32fun -nostdlib -I. -Wall  -Wl,--print-memory-usage -Wl,-Map=blink.map -L../../ch32fun/../misc -lgcc -T ../../ch32fun/generated_ch32v003.ld -Wl,--gc-sections
-
-# Correct?
-EXTFLAGS := -march=rv32ec -mabi=ilp32e -DCH32V003=1 -static-libgcc -I/usr/arm-none-eabi/include -nostdlib -I. -Wall -L. -lgcc -T ch32v003.ld -Wl,--gc-sections
+EXTFLAGS := -march=rv32ec \
+			-mabi=ilp32e \
+			-DCH32V003=1 \
+			-static-libgcc \
+			-I$(NEWLIB) \
+			-nostdlib \
+			-I. \
+			-Wall \
+			-L. \
+			-lgcc \
+			-T ch32v003.ld \
+			-Wl,--gc-sections
 
 default: $(TARGET).bin
 
@@ -25,41 +34,26 @@ $(TARGET).elf: ch32fun.c blink.c | ch32v003.ld ch32fun.h ch32v003hw.h
 ch32v003.ld: ch32fun.ld
 	@riscv64-linux-gnu-gcc -E -P -x c -DTARGET_MCU=$(TARGET_MCU) -DMCU_PACKAGE= -DTARGET_MCU_LD=0 -DTARGET_MCU_MEMORY_SPLIT= $< > $@
 
-ch32fun.ld:
-	@curl $(CURL_FLAGS) $(BASE)/ch32fun.ld
-
-ch32fun.c:
-	@curl $(CURL_FLAGS) $(BASE)/ch32fun.c
-
-ch32v003hw.h:
-	@curl $(CURL_FLAGS) $(BASE)/ch32v003hw.h
-
-ch32fun.h:
-	@curl $(CURL_FLAGS) $(BASE)/ch32fun.h
-
-deps:
-	@curl $(CURL_FLAGS) $(BASE)/ch32fun.ld
-	@curl $(CURL_FLAGS) $(BASE)/ch32v003hw.h
-	@curl $(CURL_FLAGS) $(BASE)/ch32fun.c
-	@curl $(CURL_FLAGS) $(BASE)/ch32fun.h
+# Rule to use curl to fetch all files beginning with ch32
+ch32%:
+	@echo "Fetching $@"
+	@curl $(CURL_FLAGS) $(BASE)/$@
 
 $(TARGET).bin : $(TARGET).elf
-	$(PREFIX)-objdump -S $^ > $(TARGET).lst
-	$(PREFIX)-objcopy -O binary $< $(TARGET).bin
-	$(PREFIX)-objcopy -O ihex $< $(TARGET).hex
+	@$(OBJCOPY) -O binary $< $(TARGET).bin
+
+$(TARGET).lst : $(TARGET).elf
+	@$(OBJDUMP) -S $^ > $(TARGET).lst
+
+$(TARGET).hex : $(TARGET).elf
+	@$(OBJCOPY) -O ihex $< $(TARGET).hex
 
 flash:
 	minichlink -w $(TARGET).bin flash -b
 
 clean:
 	rm -f ch32*.[ch]
-	rm -f *.ld
-	rm -f *.hex
-	rm -f *.bin
-	rm -f *.map
-	rm -f *.lst
-	rm -f *.elf
-	rm -f *.ld
+	rm -f *.{ld,hex,bin,map,lst,elf}
 
 .PHONY: clean flash deps default