????????找一个目录下面建立目录“recipes-customer”，以及子目录“hello-world”；在recipes-customer/hello-world/路径下，建立 “hello-world”子目录和“hello-world_1.0.0.bb”文件。
recipes-customer/
└── hello-world
?? ├── hello-world
?? │?? └── hello-world.cpp
?? └── hello-world_1.0.0.bb????????hello-world_1.0.0.bb文件?
# Package summary
SUMMARY = "Hello World"
# License, for example MIT
LICENSE = "MIT"
# License checksum file is always required
LIC_FILES_CHKSUM = "file://${COREBASE}/meta/files/common-licenses/MIT;md5=0835ade698e0bcf8506ecda2f7b4f302"
# hello-world.c from local file
SRC_URI = "file://hello-world.cpp"
# Set LDFLAGS options provided by the build system
TARGET_CC_ARCH += "${LDFLAGS}"
# Change source directory to workdirectory where hello-world.cpp is
S = "${WORKDIR}"
# Compile hello-world from sources, no Makefile
do_compile() {
${CXX} -Wall hello-world.cpp -o hello-world
}
# Install binary to final directory /usr/bin
do_install() {
install -d ${D}${bindir}
install -m 0755 ${S}/hello-world ${D}${bindir}
}? ? ? ? 在hello-world目录下创建“hello-world.cpp”文件
#include <stdio.h>
int main(int argc, char *argv[]){
printf("Hello world!\n");
return 0;
}
? ? ? ? 修改recipes-core/images/core-image-minimal.bb 文件，告知 image 构建规则需要加入 hello-world 应用程序
IMAGE_INSTALL_append = " \
hello-world\
? ? ? ? 构建镜像，镜像中的根文件系统下的/usr/bin
就内置了
hello-world
应用程序。????????
bitbake hello-world? ? ? ? 编译临时目录?
[wangyb@wangyb-VirtualBox:build]$ ls tmp/work/aarch64-poky-linux/hello-world/1.0.0-r0/
configure.sstate hello-world image packages-split pseudo sstate-install-package sstate-install-package_write_rpm sysroot-destdir
debugsources.list hello-world.cpp license-destdir patches recipe-sysroot sstate-install-packagedata sstate-install-populate_lic temp
deploy-rpms hello-world.spec package pkgdata recipe-sysroot-native sstate-install-package_qa sstate-install-populate_sysroot
