Makefile 模板 --- 内核模块

内核模块模板

• 驱动源码同级目录下

#*******************************************************************************
# xxx Co., Ltd. All Right Reserved.
# Author       :
# Version      : V1.0.0  2020.10.21
# Description  :
# Note         :  gaoyang3513@163.com     Modified        2020.10.21
#*******************************************************************************

#*******************************************************************************
# Path information
#*******************************************************************************
LOCAL_DIR    := $(realpath $(dir $(lastword $(MAKEFILE_LIST))))
KERNEL_DIR   ?= /home/gaoyang3513/Source/06-SG20x/02-Projects/SDK_SG200x_V2/linux_5.10/build/sg2000_milkv_duos_glibc_arm64_sd
#KERNEL_DIR   ?= $(HOME)/Source/06-SG20x/02-Projects/SDK_SG200x_V2/linux_5.10/build/sg2000_milkv_duos_glibc_arm64_sd/

# ParDirectory
LIBS_DIR     :=
INCLUDE_DIR  :=

# Subdirectory

# Output
OUTPUT_DIR   := $(LOCAL_DIR)/output
INSTALL_DIR  ?= $(LOCAL_DIR)/__install

#*******************************************************************************
# Variables
#*******************************************************************************
MULTI_CORES ?= $(shell grep -c ^processor /proc/cpuinfo)

MOD_NAME := test_panic

#*******************************************************************************
# Compile configure
#*******************************************************************************
ARCH          ?= arm64
CROSS_COMPILE ?= ${HOME}/Source/06-SG20x/02-Projects/SDK_SG200x_V2/host-tools/gcc/gcc-linaro-7.3.1-2018.05-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-

CC            := $(CROSS_COMPILE)gcc
LD            := $(CROSS_COMPILE)ld
AR            := $(CROSS_COMPILE)ar
STRIP         := $(CROSS_COMPILE)strip
OBJDUMP       := $(CROSS_COMPILE)objdump

export ARCH CROSS_COMPILE

#*******************************************************************************
# Targets
#*******************************************************************************
.PHONY: all install clean

ifeq ($(KERNELRELEASE),)
all: init
	@$(MAKE) modules         -C $(KERNEL_DIR) M=$(LOCAL_DIR) -j$(MULTI_CORES)
#	@$(MAKE) modules_install -C $(KERNEL_DIR) M=$(LOCAL_DIR) INSTALL_MOD_PATH=$(KERNEL_DIR)/_install_modules INSTALL_MOD_DIR=private
	@$(OBJDUMP) -hdS test_ps.o > test_ps.dmp

clean:
#       File
	@for n in *.o *.ko *.mod.c *.mod *.cmd *.symvers *.order; do \
		find $(LOCAL_DIR) -type f -name $$n  -exec rm {} \;;\
	done
#       Directory
	@if [ -d $(LOCAL_DIR)/output        ]; then rm -rf $(LOCAL_DIR)/output;        fi;
	@if [ -d $(LOCAL_DIR)/__install     ]; then rm -rf $(LOCAL_DIR)/__install;     fi;
	@if [ -d $(LOCAL_DIR)/.tmp_versions ]; then rm -rf $(LOCAL_DIR)/.tmp_versions; fi;


install:
	@mkdir -p $(INSTALL_DIR)/lib/modules/private
	@install -m 644 -D $(MOD_NAME).ko $(INSTALL_DIR)/lib/modules/private;

init:
	@mkdir -p $(OUTPUT_DIR)

else
obj-m := $(MOD_NAME).o

$(MOD_NAME)-objs := test_ps.o

INC_DIRS :=

ccflags-y +=

EXTRA_CFLAGS += -Wno-error=date-time	# Fix compile error on gcc 4.9 and later
EXTRA_CFLAGS += -Wno-date-time -g
endif # ifeq ($(KERNELRELEASE),)

• 上级目录

#*******************************************************************************
#  xxx Co., Ltd. All Right Reserved.
# Author       :
# Version      : V1.0.0  2020.10.21
# Description  :
# Note         : gaoyang3513@163.com     Modified        2020.10.21
#*******************************************************************************

#*******************************************************************************
# Path information
#*******************************************************************************
LOCAL_DIR    := $(realpath $(dir $(lastword $(MAKEFILE_LIST))))
KERNEL_DIR   ?= /home/gaoyang3513/Source/06-SG20x/02-Projects/SDK_SG200x_V2/linux_5.10/build/sg2000_milkv_duos_glibc_arm64_sd
#KERNEL_DIR   ?= $(HOME)/Source/06-SG20x/02-Projects/SDK_SG200x_V2/linux_5.10/build/sg2000_milkv_duos_glibc_arm64_sd/

# ParDirectory
LIBS_DIR     :=
INCLUDE_DIR  :=

# Subdirectory
SUB_DIRS := $(LOCAL_DIR)/01-Panic

# Output
OUTPUT_DIR   := $(LOCAL_DIR)/output
INSTALL_DIR  ?= $(LOCAL_DIR)/__install

#*******************************************************************************
# Variables
#*******************************************************************************
MULTI_CORES ?= $(shell grep -c ^processor /proc/cpuinfo)

MOD_NAME := test_panic

#*******************************************************************************
# Compile configure
#*******************************************************************************
ARCH          ?= arm64
CROSS_COMPILE ?= ${HOME}/Source/06-SG20x/02-Projects/SDK_SG200x_V2/host-tools/gcc/gcc-linaro-7.3.1-2018.05-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-

CC            := $(CROSS_COMPILE)gcc
LD            := $(CROSS_COMPILE)ld
AR            := $(CROSS_COMPILE)ar
STRIP         := $(CROSS_COMPILE)strip

export ARCH CROSS_COMPILE

#*******************************************************************************
# Targets
#*******************************************************************************
.PHONY: init all clean install menuconfig

ifeq ($(KERNELRELEASE),)
all: init
	@for sub in $(SUB_DIRS); do \
		$(MAKE)                                   -C $$sub || exit "$$?"; \
		$(MAKE) install INSTALL_DIR=$(OUTPUT_DIR) -C $$sub || exit "$$?"; \
	done;

clean:
	@for sub in $(SUB_DIRS); do \
		$(MAKE) clean -C $$sub || exit "$$?"; \
	done;
#       Directory
	@if [ -d $(LOCAL_DIR)/output        ]; then rm -rf $(LOCAL_DIR)/output;        fi;
	@if [ -d $(LOCAL_DIR)/__install     ]; then rm -rf $(LOCAL_DIR)/__install;     fi;

install:
	@mkdir -p $(INSTALL_DIR)
	@cp -arf $(OUTPUT_DIR)/. $(INSTALL_DIR)

init:
	@mkdir -p $(OUTPUT_DIR);
else
# called from kernel build system: just declare what our modules are
obj-y += $(SUB_DIRS)

INC_DIRS :=

subdir-ccflags-y += $(addprefix -I, $(INC_DIRS))

endif # ifeq ($(KERNELRELEASE),)