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Makefile: Improve build when changing micro-controller architecture 

Try to clean up the dependency files when changing the
micro-controller architecture so that an explicit "make clean" isn't
needed.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2020-12-17 09:55:44 -05:00
parent 4c2d074967
commit 85300a4aad
1 changed files with 23 additions and 18 deletions
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41
Makefile
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@ -1,6 +1,6 @@
# Klipper build system
#
# Copyright (C) 2016-2019 Kevin O'Connor <kevin@koconnor.net>
# Copyright (C) 2016-2020 Kevin O'Connor <kevin@koconnor.net>
#
# This file may be distributed under the terms of the GNU GPLv3 license.
@ -57,27 +57,22 @@ endif
include src/Makefile
-include src/$(patsubst "%",%,$(CONFIG_BOARD_DIRECTORY))/Makefile
################ Common build rules
################ Main build rules
$(OUT)%.o: %.c $(OUT)autoconf.h $(OUT)board-link
$(OUT)%.o: %.c $(OUT)autoconf.h
@echo " Compiling $@"
$(Q)$(CC) $(CFLAGS) -c $< -o $@
$(OUT)%.ld: %.lds.S $(OUT)autoconf.h $(OUT)board-link
$(OUT)%.ld: %.lds.S $(OUT)autoconf.h
@echo " Preprocessing $@"
$(Q)$(CPP) -I$(OUT) -P -MD -MT $@ $< -o $@
################ Main build rules
$(OUT)klipper.elf: $(OBJS_klipper.elf)
@echo " Linking $@"
$(Q)$(CC) $(OBJS_klipper.elf) $(CFLAGS_klipper.elf) -o $@
$(Q)scripts/check-gcc.sh $@ $(OUT)compile_time_request.o
$(OUT)board-link: $(KCONFIG_CONFIG)
@echo " Creating symbolic link $(OUT)board"
$(Q)mkdir -p $(addprefix $(OUT), $(dirs-y))
$(Q)touch $@
$(Q)rm -f $(OUT)board
$(Q)ln -sf $(PWD)/src/$(CONFIG_BOARD_DIRECTORY) $(OUT)board
$(Q)mkdir -p $(OUT)board-generic
$(Q)rm -f $(OUT)board-generic/board
$(Q)ln -sf $(PWD)/src/generic $(OUT)board-generic/board
################ Compile time requests
$(OUT)%.o.ctr: $(OUT)%.o
$(Q)$(OBJCOPY) -j '.compile_time_request' -O binary $^ $@
@ -88,10 +83,20 @@ $(OUT)compile_time_request.o: $(patsubst %.c, $(OUT)src/%.o.ctr,$(src-y)) ./scri
$(Q)$(PYTHON) ./scripts/buildcommands.py -d $(OUT)klipper.dict -t "$(CC);$(AS);$(LD);$(OBJCOPY);$(OBJDUMP);$(STRIP)" $(OUT)compile_time_request.txt $(OUT)compile_time_request.c
$(Q)$(CC) $(CFLAGS) -c $(OUT)compile_time_request.c -o $@
$(OUT)klipper.elf: $(OBJS_klipper.elf)
@echo " Linking $@"
$(Q)$(CC) $(OBJS_klipper.elf) $(CFLAGS_klipper.elf) -o $@
$(Q)scripts/check-gcc.sh $@ $(OUT)compile_time_request.o
################ Auto generation of "board/" include file link
$(OUT)board-link: $(KCONFIG_CONFIG)
@echo " Creating symbolic link $(OUT)board"
$(Q)mkdir -p $(addprefix $(OUT), $(dirs-y))
$(Q)echo "#$(CONFIG_BOARD_DIRECTORY)" > $@.temp
$(Q)if ! cmp -s $@.temp $@; then rm -f $(OUT)*.d $(patsubst %,$(OUT)%/*.d,$(dirs-y)) ; mv $@.temp $@ ; fi
$(Q)rm -f $(OUT)board
$(Q)ln -sf $(PWD)/src/$(CONFIG_BOARD_DIRECTORY) $(OUT)board
$(Q)mkdir -p $(OUT)board-generic
$(Q)rm -f $(OUT)board-generic/board
$(Q)ln -sf $(PWD)/src/generic $(OUT)board-generic/board
include $(OUT)board-link
################ Kconfig rules