R818-linux so库生成和demo打包

1.在package/目录中创建我们的文件 ：

这里我随便创建了些文件如图，看名字就知道很随意。 image.png

层级关系：

.
├── demo
│   ├── Makefile
│   └── my_test.c
├── files
│   └── mytest_supplicant.conf
├── Makefile
└── src
    └── core
        ├── include
        │   └── scan.h
        ├── Makefile
        └── myxpz.c

2.package/testmanager/demo/Makefile ,相关的Makefile语法自己补充。

INCLUDES += -I$(CONFIG_PREFIX)/usr/include \
            -I ../src/core/include
install:
    -@mkdir -p $(CONFIG_PREFIX)/usr/bin

#mytest
mytest: my_test.c
    $(CC) -o $@ $^ $(CFLAGS) $(INCLUDES)  $(LDFLAGS) -L$(CONFIG_PREFIX)/usr/lib -lmyxpz
    -@cp -f mytest $(CONFIG_PREFIX)/usr/bin

####################################################################
all: install mytest 
clean:
    rm -rf mytest

3.so库实际生成的mk

package/testmanager/src/core/Makefile

include $(TOPDIR)/rules.mk
include $(BUILD_DIR)/package.mk

target          = libmyxpz.so

INCLUDES        += -I. -I./include
LIBS            += -lpthread -ldl -lrt

# 在同行的为同一进程，换行需用 \
# SRCS =myxpz.c myxpz_event.c myxpz_scan.c \
#       xpz.c myxpz_conf.c 

# 遍历Makefile所在的当前文件夹内的所有.c文件
SRCS = $(wildcard *.c)
# SRCS += $(wildcard ./file/*.c)

install:
    -@mkdir -p $(CONFIG_PREFIX)/usr/lib
    -@mkdir -p $(CONFIG_PREFIX)/usr/include
    @cp ./include/*.h $(CONFIG_PREFIX)/usr/include

$(target): $(SRCS)
    $(CC) -fPIC -shared $(INCLUDES) $(LDFLAGS) $^ -o $@ $(LIBS)
    @cp $@ $(CONFIG_PREFIX)/usr/lib

####################################################################
all: install $(target)
clean:
    rm -rf $(target)

4.so文件生成但还缺少一步来跟随打包进入系统镜像中。

这里包含 menuconfig 的注册。

include $(TOPDIR)/rules.mk
include $(BUILD_DIR)/package.mk

PKG_NAME:=testmanager
PKG_VERSION:=0.0.1
PKG_RELEASE:=1

define Package/$(PKG_NAME)/Default
  SECTION:=utils
  CATEGORY:=Testmanager
  TITLE:=MY testmanager
  DEPENDS:=
endef

define Package/$(PKG_NAME)
  $(call Package/testmanager/Default)
  MENU:=1
  DEFAULT:=1
endef

define Package/$(PKG_NAME)-demo
  $(call Package/testmanager/Default)
  TITLE:=MY testmanager app demo
  DEPENDS := testmanager +testmanager
endef

define Package/$(PKG_NAME)/description
    Mytest test manager
endef


define Build/Prepare
    mkdir -p $(PKG_BUILD_DIR)
    $(CP) -r ./src $(PKG_BUILD_DIR)/
    $(CP) -r ./demo $(PKG_BUILD_DIR)/
endef

define Build/Configure
endef

TARGET_CFLAGS += -pthread

define Build/Compile/$(PKG_NAME)
    # libmyxpz.so
    $(MAKE) -C $(PKG_BUILD_DIR)/src/core/ \
        ARCH="$(TARGET_ARCH)" \
        AR="$(TARGET_AR)" \
        CC="$(TARGET_CC)" \
        CXX="$(TARGET_CXX)" \
        CFLAGS="$(TARGET_CFLAGS)" \
        LDFLAGS="$(TARGET_LDFLAGS)" \
        CONFIG_PREFIX="$(PKG_INSTALL_DIR)" \
        all
endef

ifeq ($(CONFIG_PACKAGE_testmanager-demo),y)
    # testmanager-demo
define Build/Compile/$(PKG_NAME)-demo
    $(MAKE) -C $(PKG_BUILD_DIR)/demo/ \
        ARCH="$(TARGET_ARCH)" \
        AR="$(TARGET_AR)" \
        CC="$(TARGET_CC)" \
        CXX="$(TARGET_CXX)" \
        CFLAGS="$(TARGET_CFLAGS)" \
        LDFLAGS="$(TARGET_LDFLAGS)" \
        CONFIG_PREFIX="$(PKG_INSTALL_DIR)" \
        all
endef
endif

define Build/Compile
    $(Build/Compile/$(PKG_NAME))
    $(Build/Compile/$(PKG_NAME)-demo)
endef

define Build/InstallDev
    $(INSTALL_DIR) $(1)/lib
    $(INSTALL_DIR) $(1)/usr/include
    $(INSTALL_DATA) $(PKG_INSTALL_DIR)/usr/lib/libmyxpz.so $(1)/lib
    $(INSTALL_DATA) $(PKG_INSTALL_DIR)/usr/include/*.h $(1)/usr/include
endef

define Package/$(PKG_NAME)/install
    $(INSTALL_DIR) $(1)/lib
    $(INSTALL_DIR) $(1)/usr/include
    $(INSTALL_DIR) $(1)/etc

    $(INSTALL_DATA) $(PKG_INSTALL_DIR)/usr/lib/libmyxpz.so $(1)/lib
    $(INSTALL_DATA) $(PKG_INSTALL_DIR)/usr/include/*.h $(1)/usr/include
    $(INSTALL_DATA) ./files/mytest_supplicant.conf $(1)/etc
endef

define Package/$(PKG_NAME)-demo/install
    $(INSTALL_DIR) $(1)/bin
    $(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/bin/mytest $(1)/bin
endef

$(eval $(call BuildPackage,$(PKG_NAME)))
$(eval $(call BuildPackage,$(PKG_NAME)-demo))

5.需要再 menuconfig中选择我们的模块和lib库。 image-20240430150837190.png

    Testmanager  --->   
          <*> testmanager............................................... MY testmanager  --->  
                <*>   testmanager-demo................................. MY testmanager app demo   

6.最终产物如图： image-20240430150448162.png

结束✿✿ヽ(°▽°)ノ✿！