子系统，部件，模块编译构建全实践

{
    "subsystem": "mysubsys"                    # mysubsys所属子系统的名字
    "parts": {
        "ohos_build_test": {                    # ohos_build_test为部件名称
            "module_list": [
                "//mysubsys/ohos_build_test:mygroup"        # 部件编译入口
            ]
            "test_list": []
        }
    }
}

{
    "name": "@ohos/sensor_lite",                                         # HPM部件英文名称，格式"@组织/部件名称"
    "description": "Sensor services",                                     # 部件功能一句话描述    
    "version": "3.1",                                                     # 版本号，版本号与OpenHarmony版本号一致
    "license": "MIT",                                                     # 部件License
    "publishAs": "code-segment",                                         # HPM包的发布方式，当前默认都为code-segment
    "segment": {                                        
        "destPath": ""            
    },                                                                     # 发布类型为code-segment时为必填项，定义发布类型code-segment的代码还原路径（源码路径）            
    "dirs": {"base/sensors/sensor_lite"},                                 # HPM包的目录结构，字段必填内容可以留空
    "scripts": {},                                                         # HPM包定义需要执行的脚本，字段必填，值非必填
    "licensePath": "COPYING",            
    "readmePath": {
        "en": "README.rst"
    },
    "component": {                                                         # 部件属性
        "name": "sensor_lite",                                             # 部件名称        
        "subsystem": "",                                                 # 部件所属子系统
        "syscap": [],                                                     # 部件为应用提供的系统能力
        "features": [],                                                  # 部件对外的可配置特性列表，一般与build中的sub_component对应，可供产品配置
        "adapted_system_type": [],                                         # 轻量(mini)小型(small)和标准(standard)，可以是多个
        "rom": "92KB",                                                   # 部件ROM值
        "ram": "~200KB",                                                 # 部件RAM估值       
        "deps": {                      
        "components": [                                                  # 部件依赖的其他部件
          "samgr_lite",
          "ipc_lite"
        ],
        "third_party": [                                                 # 部件依赖的三方开源软件
          "bounds_checking_function"
        ]
      }         
        "build": {                                                         # 编译相关配置
            "sub_component": [
                ""//base/sensors/sensor_lite/services:sensor_service"",  # 部件编译入口
            ],                                                             # 部件编译入口，模块在此处配置
            "inner_kits": [],                                             # 部件间接口
            "test": []                                                     # 部件测试用例编译入口
        }
    }
 }

# C/C++模板
ohos_shared_library
ohos_static_library
ohos_executable
ohos_source_set

# 预编译模板：
ohos_prebuilt_executable
ohos_prebuilt_shared_library
ohos_prebuilt_static_library

#hap模板
ohos_hap
ohos_app_scope
ohos_js_assets
ohos_resources

#其他常用模板
#配置文件
ohos_prebuilt_etc

#sa配置
ohos_sa_profile

import("//build/ohos.gni")
ohos_executable("helloworld") {
  configs = []                       # 配置  
  part_name = [string]               # 部件名称 
  subsystem_name = [string]          # 子系统名称
  deps = []                          # 部件内模块依赖

  external_deps = [                  # 跨部件模块依赖定义，
  "part_name:module_name",           # 定义格式为 "部件名:模块名称"
  ]                                  # 这里依赖的模块必须是依赖的部件声明在inner_kits中的模块
  ohos_test = []
  test_output_dir = []

  # Sanitizer配置，每项都是可选的，默认为false/空
  sanitize = {
    # 各个Sanitizer开关
    cfi = [boolean]               # 控制流完整性检测
    cfi_cross_dso = [boolean]     # 开启跨so调用的控制流完整性检测
    integer_overflow = [boolean]  # 整数溢出检测
    boundary_sanitize = [boolean] # 边界检测
    ubsan = [boolean]             # 部分ubsan选项
    all_ubsan = [boolean]         # 全量ubsan选项
    ...

    debug = [boolean]             # 调测模式
    blocklist = [string]          # 屏蔽名单路径
  }

  testonly = [boolean]
  license_as_sources = []
  license_file = []                  # 后缀名是.txt的文件
  remove_configs = []
  static_link = []
  install_images = []
  module_install_dir = []            # 模块安装路径，从system/，vendor/后开始指定
  relative_install_dir = []
  symlink_target_name = []
  output_dir = [directory]           # 存放输出文件的目录
  install_enable = [boolean]
  version_script = []
  use_exceptions = []
}

"mysubsys": {
    "path": "mysubsys",
    "name": "mysubsys"
  }

mysubsys
├── bundle_json_test
│   ├── BUILD.gn
│   ├── bundle.json
│   └── test
│       ├── BUILD.gn
│       └── test.c
└── ohos_build_test
    ├── BUILD.gn
    ├── ohos.build
    └── test
        ├── BUILD.gn
        └── test.c

#include "stdio.h"

int main()
{
    printf("test mysubsys for ohos.build\r\n");
    return 0;
}

#include "stdio.h"

int main()
{
    printf("test mysubsys for bundle.json\r\n");
    return 0;
}

./build.sh --product-name unionpi_tiger    #编译
./device/board/unionman/unionpi_tiger/common/tools/packer-unionpi.sh # 镜像打包

mysubsys_test_ohos
mysubsys_test_bundle