Im trying to create a Makefile which compiles some files and creates some outputs but first I want it to execute the configuration only one time and the next time I type make it wont re-execute the configuration unless I change the parameters for example the prefix.
I tried using touch , FORCE and if, after searching a bit in other posts but Im newbie in gcc and Makefiles so I cant make it work.
My code now is (did not include the other rules because they dont affect the configuration):
XLEN := 32RISCV_PREFIX := riscv$(XLEN)-unknown-elf-RISCV_GCC := $(RISCV_PREFIX)gccCFLAGS := -O2WORKING_DIR:= $(shell pwd)LIBRARY_DIR:= $(abspath $(dir $(lastword $(MAKEFILE_LIST)))/..)B := $(shell echo $(LIBRARY_DIR))$(info $(B))--->(execute this only once)--->CONFIGURATION := configure --prefix=$(LIBRARY_DIR) --with-arch=rv32if --with-abi=ilp32d
RISCV_TEST_DIR:=$(shell pwd)SCRIPTDIR:=$(RISCV_TEST_DIR)/../../toolsRISCV_OPTIONS = -o RISCV_LINK = $(RISCV_GCC) $(PROGRAMS) $(RISCV_OPTIONS) $@ $(CFLAGS) #produces .elf file!RISCV_OBJDUMP = $(RISCV_PREFIX)objdump -D #produces a dump file to see the assembly code!RISCV_OBJCOPY = $(RISCV_PREFIX)objcopy -O binary #produces a bin file!%.elf: %.c $(info Generating .elf file from files: $(PROGRAMS_NO_EX)) $(RISCV_LINK) $(info Success!) $(info ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~)%.dump: %.elf $(info Copying assembly to dump file $(PROGRAMS_NO_EX).dump) @$(RISCV_OBJDUMP) $< > $@ $(info Success!) $(info ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~)%.bin: %.elf $(info Generating bin file) @$(RISCV_OBJCOPY) $< $@ $(info Success!) $(info ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~)%.hex: %.bin $(info Generating hex file) echo cd $(SCRIPTDIR) $(info Running binary to hex >>>) python $(SCRIPTDIR)/bin2hex.py $< -a 0x0 > $@ || exit -1 $(info Hex Generation Successful!) $(info ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~)all: $(PROGRAMS_TO_CREATE); if [ -a $(LIBRARY_DIR)/config.status ]; then cd $(LIBRARY_DIR) && $(CONFIGURATION); fi;configure: config.status touch configureconfig.status: cd $(LIBRARY_DIR) && $(CONFIGURATION);.PHONY: all cleanclean: $(info Cleaning files...) @rm -rf *.elf *.hex *.map *.objdump *.i *.s *.bin *.dump $(info Done cleaning!)Thank you in advance!
