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Makefile
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Makefile
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# Klipper build system
#
# Copyright (C) 2016-2020 Kevin O'Connor <[email protected]>
#
# This file may be distributed under the terms of the GNU GPLv3 license.
# host file
host-tool-src = tool/host_crc16.c
# Output directory
OUT=out/
# Kconfig includes
export KCONFIG_CONFIG := $(CURDIR)/.config
-include $(KCONFIG_CONFIG)
# Common command definitions
CC=$(CROSS_PREFIX)gcc
AS=$(CROSS_PREFIX)as
LD=$(CROSS_PREFIX)ld
OBJCOPY=$(CROSS_PREFIX)objcopy
OBJDUMP=$(CROSS_PREFIX)objdump
STRIP=$(CROSS_PREFIX)strip
CPP=cpp
PYTHON=python3
# Source files
src-y =
dirs-y = src
# Default compiler flags
cc-option=$(shell if test -z "`$(1) $(2) -S -o /dev/null -xc /dev/null 2>&1`" \
; then echo "$(2)"; else echo "$(3)"; fi ;)
CFLAGS := -I$(OUT) -Isrc -I$(OUT)board-generic/ -std=gnu11 -O2 -MD \
-Wall -Wold-style-definition $(call cc-option,$(CC),-Wtype-limits,) \
-ffunction-sections -fdata-sections -fno-delete-null-pointer-checks
CFLAGS += -flto -fwhole-program -fno-use-linker-plugin -ggdb3
OBJS_klipper.elf = $(patsubst %.c, $(OUT)src/%.o,$(src-y))
OBJS_klipper.elf += $(OUT)compile_time_request.o
CFLAGS_klipper.elf = $(CFLAGS) -Wl,--gc-sections -Wl,-Map,out/klipper.map
CPPFLAGS = -I$(OUT) -P -MD -MT $@
# Default targets
target-y := $(OUT)klipper.elf
target-y += $(OUT)hostCrc16.elf
target-y += $(OUT)src/prtouch_v2.o
all:
# Run with "make V=1" to see the actual compile commands
ifdef V
Q=
else
Q=@
MAKEFLAGS += --no-print-directory
endif
##### Process board hardware and firmware version
ifeq ($(CONFIG_BOARD_INFO_CONFIGURE),y)
ifeq ($(CONFIG_MAIN_MCU_BOARD),y)
board_type := mcu
else ifeq ($(CONFIG_NOZZLE_MCU_BOARD),y)
board_type := noz
else ifeq ($(CONFIG_BED_MCU_BOARD),y)
board_type := bed
endif
ifneq ($(CONFIG_MCU_MENU),)
mcu_menu := $(patsubst "%",%,$(CONFIG_MCU_MENU))
else
mcu_menu :=
endif
ifneq ($(CONFIG_MCU_TYPE),)
mcu_type := $(patsubst "%",%,$(CONFIG_MCU_TYPE))
else
mcu_type :=
endif
board_hw_version := $(board_type)$(CONFIG_MCU_BOARD_ID)_$(CONFIG_MCU_BOARD_HW_VER)_$(mcu_menu)$(mcu_type)
board_fw_version := $(board_type)$(CONFIG_MCU_BOARD_ID)_$(CONFIG_MCU_BOARD_FW_VER)_$(CONFIG_MCU_BOARD_FW_RESERVED)
CFLAGS += -DBOARD_FW_VERSION=\"$(board_fw_version)\"
export board_hw_version board_fw_version
endif
# Include board specific makefile
include src/Makefile
-include src/$(patsubst "%",%,$(CONFIG_BOARD_DIRECTORY))/Makefile
################ Main build rules
$(OUT)%.o: %.c $(OUT)autoconf.h
@echo " Compiling $@"
$(Q)$(CC) $(CFLAGS) -c $< -o $@
$(OUT)%.ld: %.lds.S $(OUT)autoconf.h
@echo " Preprocessing $@"
$(Q)$(CPP) -I$(OUT) -P -MD -MT $@ $< -o $@
$(OUT)klipper.elf: $(OBJS_klipper.elf) $(OUT)src/prtouch_v2.o $(OUT)hostCrc16.elf
@echo " Linking $@"
$(Q)$(CC) $(OBJS_klipper.elf) $(OUT)src/prtouch_v2.o $(CFLAGS_klipper.elf) -o $@
$(Q)scripts/check-gcc.sh $@ $(OUT)compile_time_request.o
$(OUT)hostCrc16.elf: $(host-tool-src)
@echo " Compiling and Linking $@"
$(Q)gcc $< -o $@
################ Compile time requests
$(OUT)%.o.ctr: $(OUT)%.o
$(Q)$(OBJCOPY) -j '.compile_time_request' -O binary $^ $@
$(OUT)compile_time_request.o: $(patsubst %.c, $(OUT)src/%.o.ctr,$(src-y)) ./scripts/buildcommands.py
@echo " Building $@"
$(Q)cat $(patsubst %.c, $(OUT)src/%.o.ctr,$(src-y)) | tr -s '\0' '\n' > $(OUT)compile_time_request.txt
$(Q)$(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 $@
################ Auto generation of "board/" include file link
create-board-link:
@echo " Creating symbolic link $(OUT)board"
$(Q)mkdir -p $(addprefix $(OUT), $(dirs-y))
$(Q)rm -f $(OUT)*.d $(patsubst %,$(OUT)%/*.d,$(dirs-y))
$(Q)rm -f $(OUT)board
$(Q)ln -sf $(CURDIR)/src/$(CONFIG_BOARD_DIRECTORY) $(OUT)board
$(Q)mkdir -p $(OUT)board-generic
$(Q)rm -f $(OUT)board-generic/board
$(Q)ln -sf $(CURDIR)/src/generic $(OUT)board-generic/board
# Hack to rebuild OUT directory and reload make dependencies on Kconfig change
$(OUT)board-link: $(KCONFIG_CONFIG)
$(Q)mkdir -p $(OUT)
$(Q)echo "# Makefile board-link rule" > $@
$(Q)$(MAKE) create-board-link
include $(OUT)board-link
################ Kconfig rules
$(OUT)autoconf.h: $(KCONFIG_CONFIG)
@echo " Building $@"
$(Q)mkdir -p $(OUT)
$(Q) KCONFIG_AUTOHEADER=$@ $(PYTHON) lib/kconfiglib/genconfig.py src/Kconfig
$(KCONFIG_CONFIG) olddefconfig: src/Kconfig
$(Q)$(PYTHON) lib/kconfiglib/olddefconfig.py src/Kconfig
menuconfig:
$(Q)$(PYTHON) lib/kconfiglib/menuconfig.py src/Kconfig
@echo " Board HW Ver: $(board_hw_version)"
@echo " Board FW Ver: $(board_fw_version)"
%_defconfig: src/configs/%_defconfig
@echo " Load configuration: $@"
$(Q)cp -v src/configs/$@ $(KCONFIG_CONFIG)
################ Generic rules
# Make definitions
.PHONY : all clean distclean olddefconfig menuconfig create-board-link FORCE
.DELETE_ON_ERROR:
all: $(target-y)
clean:
$(Q)rm -rf $(OUT)
distclean: clean
$(Q)rm -f .config .config.old
-include $(OUT)*.d $(patsubst %,$(OUT)%/*.d,$(dirs-y))