开源鸿蒙OpenHarmony4.1源码下载、编译,生成OHOS_Image可执行文件的最简易流程
| 作者 | 将狼才鲸 | 
|---|---|
| 日期 | 2024-03-01 | 
-  准备一台Windows电脑 
-  安装VMware或者VMware Player虚拟机 
-  从华为镜像下载Ubuntu系统,用国内源下载速度更快 - Ubuntu 镜像说明
- https://repo.huaweicloud.com/ubuntu-releases/ 选择要下载的系统版本
- https://repo.huaweicloud.com/ubuntu-releases/18.04.6/ubuntu-18.04.6-desktop-amd64.iso 我使用此链接下载
 
-  下载开源鸿蒙系统源码 - https://repo.huaweicloud.com/harmonyos/os/ 选择要下载的系统版本
- https://repo.huaweicloud.com/harmonyos/os/4.0-Release/code-v4.0-Release.tar.gz 我下载这个,28G
 
-  在VMware虚拟机中安装Ubuntu系统 
-  安装完之后进入系统,使用命令行将官方源换成华为源,这样下载软件时更快 - 参考自:https://res-static.hc-cdn.cn/cloudbu-site/china/zh-cn/SEO/mirror/Ubuntu.pdf
- sudo cp -a /etc/apt/sources.list /etc/apt/sources.list.bak 备份配置文件
- sudo sed -i “s@http://.*archive.ubuntu.com@http://repo.huaweicloud.com@g” /etc/apt/sources.list
- sudo sed -i “s@http://.*security.ubuntu.com@http://repo.huaweicloud.com@g” /etc/apt/sources.list
- sudo apt-get update
 
-  在Ubuntu系统中解压上面已经下载的openHarmony源码 
-  在Ubuntu系统中安装Docker - 官方文档介绍-Docker编译环境
- sudo apt install docker.io
- sudo docker pull swr.cn-south-1.myhuaweicloud.com/openharmony-docker/docker_oh_mini:3.2 获取轻量系统镜像,获取小型和标准的则使用不同的参数
 
-  将你下载好的鸿蒙源码在Ubuntu下解压,进入已经解压的源码根目录 
-  执行 sudo docker run -it -v $(pwd):/home/openharmony swr.cn-south-1.myhuaweicloud.com/openharmony-docker/docker_oh_mini:3.2 将源码路径导入到Docker中 
-  编译 - 轻型系统 - python3 build.py -p qemu_mini_system_demo@ohemu
 
- 小型系统 - python3 build.py -p ipcamera_hispark_taurus@hisilicon
- python3 build.py -p qemu_small_system_demo@ohemu
 
- 编译工具和开发板都分为轻型、小型、标准,必须属于同一种类型,否则编译时各种报错
 
- 轻型系统 
-  编译成功后是这样的打印: 
[OHOS INFO] [1614/1615] STAMP obj/build/ohos/images/make_images.stamp
[OHOS INFO] [1615/1615] STAMP obj/build/core/gn/images.stamp
[OHOS INFO] ccache_dir = /root/.ccache, ccache_exec = /usr/bin/ccache
[OHOS INFO] --------------------------------------------
[OHOS INFO] ccache summary:
[OHOS INFO] ccache version: 3.7.7
[OHOS INFO] cache hit (direct): 0
[OHOS INFO] cache hit (preprocessed): 0
[OHOS INFO] cache miss: 0
[OHOS INFO] hit rate: 0.00% 
[OHOS INFO] miss rate: 0.00% 
[OHOS INFO] Cache size (GB): 
[OHOS INFO] ---------------------------------------------
[OHOS INFO] c targets overlap rate statistics
[OHOS INFO] subsystem       	files NO.	percentage	builds NO.	percentage	overlap rate
[OHOS INFO] hiviewdfx       	      12	0.8%	      12	0.8%	1.00
[OHOS INFO] kernel          	     902	63.5%	     902	63.5%	1.00
[OHOS INFO] security        	      61	4.3%	      61	4.3%	1.00
[OHOS INFO] startup         	      26	1.8%	      26	1.8%	1.00
[OHOS INFO] systemabilitymgr	      15	1.1%	      15	1.1%	1.00
[OHOS INFO] thirdparty      	     393	27.7%	     393	27.7%	1.00
[OHOS INFO] 
[OHOS INFO] c overall build overlap rate: 1.00
[OHOS INFO] 
[OHOS INFO] 
[OHOS INFO] qemu_mini_system_demo@ohemu build success
[OHOS INFO] Cost time:  0:05:47
root@ff38bf1e3e75:/home/openharmony# jim@ubuntu:~/openHarmony/out/arm_mps2_an386/qemu_mini_system_demo$ ls
all_parts_host.json           build_configs   config.h         kconfig_files.txt  OHOS_Image.bin              src_installed_parts.json
all_parts_info.json           build.log       error.log        libs               OHOS_Image.map              src_sa_infos_tmp.json
args.gn                       build.ninja     etc              NOTICE_FILES       OHOS_Image.sym.sorted       startup
binary_installed_parts.json   build.ninja.d   gen              obj                packages                    thirdparty
build.1709259296.3884952.log  build.trace.gz  hiviewdfx        OHOS_Image         security                    toolchain.ninja
build.1709259767.6772568.log  config.gni      kconfig_env.txt  OHOS_Image.asm     sorted_action_duration.txt
jim@ubuntu:~/openHarmony/out/arm_mps2_an386/qemu_mini_system_demo$ 
-  生成的系统镜像image是这里面的OHOS_Image文件 
-  如需退出Docker,执行exit命令即可。这个命令会停止当前的Docker容器,并返回到您的操作系统。 
-  下一步就可以把编译好的操作系统在QEMU模拟器中运行起来了。