查看Buildroot Quick Start的源代码

== 添加包 ==

<source lang=bash>
comcat@jackslab:~/buildroot-2020.11.2$ mkdir -p package/helloworld/
</source>

在该目录下新建 '''Config.in''':

<source lang=bash>
config BR2_PACKAGE_HELLOWORLD
        bool "helloworld"
        help
          hello world package
</source>

新建 '''helloworld.mk''':

<source lang=bash>
comcat@lab:~/buildroot-2020.11.2$ cat package/helloworld/helloworld.mk
HELLOWORLD_VERSION = 1.0.0
HELLOWORLD_SITE = $(TOPDIR)/../helloworld_src
HELLOWORLD_SITE_METHOD = local

define HELLOWORLD_BUILD_CMDS
        $(MAKE) $(TARGET_CONFIGURE_OPTS) -C $(@D)
endef

define HELLOWORLD_INSTALL_TARGET_CMDS
        $(INSTALL) -D -m 0755 $(@D)/helloworld $(TARGET_DIR)/usr/bin/helloworld
        #$(INSTALL) -D -m 0755 $(@D)/helloworld-init $(TARGET_DIR)/etc/init.d/S90helloworld	
        #$(INSTALL) -D -m 0755 $(@D)/rx $(TARGET_DIR)/usr/bin/rx
endef

$(eval $(generic-package))
</source>

* HELLOWORLD_SITE is the location of the helloworld.c, init script, and makefile.
* $(TOPDIR) is the top directory, in our case ~/buildroot-2020.11.2
* $(@D) is the build directory. 


编辑 ~/buildroot-2020.11.2/package/Config.in，增加如下内容：

  source "package/helloworld/Config.in"

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