- 一、/etc/init.cfg 系统默认cfg
- 二、/system/etc/init/bytrace.cfg：初始化trace框架并使能trace功能
- 三、post-init 第一阶段之 early-fs 阶段：启动vold服务 volume daemon
- 3.1 /etc/init.cfg
- 四、post-init 第二阶段之 fs 阶段：insmod加载内核驱动模块
- 4.1 /etc/init.Hi3516DV300.cfg
- 五、post-init 第三阶段之 post-fs 阶段：挂载 rootfs文件系统到根目录，启动udevd_service监听并处理内核udev事件
- 5.1 /etc/init.cfg
- 5.2 /system/etc/init/weston.cfg： 启动udevd_service设备事件管理服务
- 六、post-init 第四阶段之 late-fs 阶段：启动分布式权限管理、应用孵化器组件、用户程序管理等服务
- 6.1 /etc/init.cfg：修改tracing节点权限为755
- 6.2 /system/etc/init/distributedpermission_service.cfg：启动分布式权限管理服务
- 6.3 /system/etc/init/appspawn.cfg：启动 appspawn 应用孵化器组件服务
- 6.4 /system/etc/init/lmks.cfg：启动 lmks 用户程序管理服务
- 6.5 /system/etc/init/installs.cfg：启动包管理服务
- 七、post-init 第五阶段之 post-fs-data 阶段：启动驱动子系统、系统帐号组件、鸿蒙通用密钥库系统、设备认证模块、日志文件系统、布式软总线组件、无线局域网组件、蓝牙、音频组件、分布式任务调度模块等服务
- 7.1 /etc/init.cfg：初始化系统中/data目录下相关文件夹的权限
- 7.2 /system/etc/init/hdf_peripheral.cfg：修改 hdf_input、hdf_audio、hdf_disp等节点所属者为system
- 7.3 /system/etc/init/hdf_devmgr.cfg：启动 hdf_devmgr 用户态驱动子系统服务
- 7.4 /system/etc/init/accountmgr.cfg：启动accountmgr系统帐号组件服务
- 7.5 /system/etc/init/huks_service.cfg：启动huks_service鸿蒙通用密钥库系统服务
- 7.6 /system/etc/init/deviceauth_service.cfg：启动deviceauth_service设备认证模块服务
- 7.7 /system/etc/init/faultloggerd32.cfg：启动32位系统崩溃临时日志管理模块
- 7.8 /system/etc/init/faultloggerd64.cfg：启动64位系统崩溃临时日志管理模块
- 7.9 /system/etc/init/hilogd.cfg： 启动日志文件系统服务，保存在/data/log/
- 7.10 /system/etc/init/hiview.cfg： 启动终端设备维测服务集
- 7.11 /system/etc/init/softbus_server.cfg： 启动布式软总线组件服务
- 7.12 /system/etc/init/wifi_standard.cfg： 启动wifi 无线局域网组件
- 7.13 /system/etc/init/wifi_hal_service.cfg： 启动wifi hal service
- 7.14 /system/etc/init/bluetooth_service.cfg： 启动蓝牙服务组件
- 7.15 /system/etc/init/pulseaudio.cfg： 启动音频组件
- 7.16 /system/etc/init/distributedsched.cfg： 启动分布式任务调度模块
- 八、post-init 第六阶段之 load_persist_props_action 阶段： 加载persist属性等参数
- 8.1 /etc/init.cfg
- 九、post-init 第七阶段之 firmware_mounts_complete 阶段：删除/dev/.booting
- 9.1 /etc/init.cfg
- 十、post-init 第八阶段之 early-boot 阶段：无任务
- 十一、post-init 第九阶段之 boot 阶段：初始化USB驱动、启动电话、时间、输入法、升级服务引擎、hdcd、媒体库组件、相机组件、媒体组件、分布式数据等服务
- 11.1 /etc/init.cfg： 初始化/sys 目录下的相关节点权限
- 11.2 /etc/init.Hi3516DV300.cfg： 初始化graphics图形相关节点权限
- 11.3 /etc/init.Hi3516DV300.usb.cfg： 挂载configfs文件系统、usb functions驱动
- 11.4 /system/etc/init/telephony.cfg： 启动电话核心服务模块
- 11.5 /system/etc/init/timeservice.cfg： 启动时间服务
- 11.6 /system/etc/init/inputmethodservice.cfg： 启动输入法服务
- 11.7 /system/etc/init/updater_sa.cfg： 启动升级服务器引擎，查询并下载升级包
- 11.8 /system/etc/init/init.usb.cfg： 启动hdcd服务，用于调试系统，等通与安卓的adb
- 11.9 /system/etc/init/foundation.cfg： 启动foundation服务
- 11.10 /system/etc/init/medialibrary_service.cfg： 启动媒体库组件
- 11.11 /system/etc/init/camera_service.cfg： 启动相机组件
- 11.12 /system/etc/init/media_service.cfg： 启动媒体组件
- 11.13 /system/etc/init/distributed_data.cfg： 启动分布式数据服务
本系列文章汇总：
- 《【鸿蒙OS开发入门】01 - 搭建Ubuntu虚拟机开发环境》
- 《【鸿蒙OS开发入门】02 - 启动流程代码分析之Uboot 第一阶段：之解压并引导加载u-boot.bin》
- 《【鸿蒙OS开发入门】03 - 启动流程代码分析之Uboot 第二阶段：之board_init初始化》
- 《【鸿蒙OS开发入门】04 - 启动流程代码分析之Uboot 第二阶段：之U_BOOT_CMD原理》
- 《【鸿蒙OS开发入门】05 - 启动流程代码分析之Uboot 第二阶段：之bootm引导加载Kernel OS》
- 《【鸿蒙OS开发入门】06 - 启动流程代码分析之KernelOS：之启动Linux-4.19 Kernel内核》
- 《【鸿蒙OS开发入门】07 - 安装docker环境编译openharmony 2.0代码》
- 《【鸿蒙OS开发入门】08 - 启动流程代码分析之KernelOS：之启动 liteos_a 内核》
- 《【鸿蒙OS开发入门】09 - 启动流程代码分析之KernelOS：之启动Linux-4.19 Kernel内核 中do_basic_setup()所干的大事》
- 《【鸿蒙OS开发入门】10 - 启动流程代码分析之第一个用户态进程：init 进程》
- 《【鸿蒙OS开发入门】11 - 启动流程代码分析之第一个用户态进程：init 进程 之 Services简介》
- 《【鸿蒙OS开发入门】12 - 启动流程代码分析之第一个用户态进程：init 进程 之 pre-init 任务详解》
- 《【鸿蒙OS开发入门】13 - 启动流程代码分析之第一个用户态进程：init 进程 之 init 任务详解》
- 《【鸿蒙OS开发入门】14 - 启动流程代码分析之第一个用户态进程：init 进程 之 post-init 任务详解》
- 《【鸿蒙OS开发入门】15 - 启动流程代码分析之第一个用户态进程：init 进程 之 StartParamService 中 libuv 做了啥？》
- 《【鸿蒙OS开发入门】16 - 重头搭建Ubuntu新环境编译OpenHarmony 3.0 LTS》
在前面，我们分析到：
pre-init 阶段，主要是做了启动ueventd服务，以及挂载vendor、userdata 这两个分区。
init阶段：主要是做了挂载debugfs和cgroup这两个子系统，启动用户程序框架子系统samgr。
本文，我们来看下，post-init 阶段又做了什么呢?
注：本文先看正常开机的流程，有关recover模式，或updater情况下，我们后续再单独分析
# basestartupinit_liteservicessrcmain.c
int main(int argc, char **argv)
{
......
// 4. 分别执行pre-init、init、post-init 等相关的事情
InitReadCfg();
--------->
+ ParseInitCfg(INIT_CONFIGURATION_FILE); // "/etc/init.cfg"
+ DumpAllServices(); // 打印所有的服务信息，系统中所有现有的服务保存在 static Service* g_services 中，通过g_servicesCnt来进行索引计数。
+ DoJob("pre-init"); // 执行 `/etc/init.cfg` 中 `pre-init`的内容
+ DoJob("init"); // 执行 `/etc/init.cfg` 中 `init`的内容
+ DoJob("post-init"); // 执行 `/etc/init.cfg` 中 `post-init`的内容
+ ReleaseAllJobs(); // 释放init.cfg中所有的jobs 命令所占用的空间
<---------
......
}
DoJob("post-init");的作用是，触发启动 json cfg文件中所有post-init 字段的命令，我们分别来看看这些命令的功能吧。
在init.cfg加载了"/etc/init.usb.cfg", "/etc/init.usb.configfs.cfg", "/etc/init.Hi3516DV300.usb.cfg", "/etc/init.Hi3516DV300.cfg"这几个config，会把它们的信息全部整合进来。
在 init.cfg 中，post-init阶段，又可以把启动过程分成很多个小段，主要如下：
- 触发early-fs 阶段的命令
- 触发fs 阶段的命令
- 触发post-fs 阶段的命令
- 触发late-fs 阶段的命令
- 触发post-fs-data 阶段的命令
- 触发load_persist_props_action 阶段的命令
- 触发firmware_mounts_complete 阶段的命令
- 触发early-boot 阶段的命令
- 触发boot 阶段的命令
有关这些小阶段，我们后面单独来分析各个小阶段所做的事情。
base/startup/init_lite/services/etc/init.cfg
{
"import" : [
"/etc/init.usb.cfg",
"/etc/init.usb.configfs.cfg",
"/etc/init.usb.cfg",
"/etc/init.Hi3516DV300.usb.cfg",
"/etc/init.Hi3516DV300.cfg"
],
"jobs" : [{
"name" : "post-init",
"cmds" : [
"trigger early-fs", // 触发`early-fs` 阶段的命令
"trigger fs", // 触发`fs` 阶段的命令
"trigger post-fs", // 触发`post-fs` 阶段的命令
"trigger late-fs", // 触发`late-fs` 阶段的命令
"trigger post-fs-data", // 触发`post-fs-data` 阶段的命令
"trigger load_persist_props_action", // 触发`load_persist_props_action` 阶段的命令
"trigger firmware_mounts_complete", // 触发`firmware_mounts_complete` 阶段的命令
"trigger early-boot", // 触发`early-boot` 阶段的命令
"trigger boot" // 触发`boot` 阶段的命令
]
}
在bytrace.cfg中主要是初始化trace框架并使能trace功能。
有关 trace 可以参考： 《Linux内核跟踪之trace框架分析》
developtools/bytrace_standard/bin/config/bytrace.cfg
{
"jobs" : [{
"name" : "post-init",
"cmds" : [
"write /proc/sys/kernel/sched_schedstats 1",
"write /sys/kernel/debug/tracing/tracing_on 0",
"chmod 0666 /sys/kernel/debug/tracing/buffer_size_kb",
"chmod 0666 /sys/kernel/debug/tracing/saved_cmdlines_size",
"chmod 0666 /sys/kernel/debug/tracing/trace",
"chmod 0666 /sys/kernel/debug/tracing/trace_clock",
"chmod 0222 /sys/kernel/debug/tracing/trace_marker",
"chmod 0666 /sys/kernel/debug/tracing/tracing_on",
"chmod 0666 /sys/kernel/debug/tracing/events/binder/binder_lock/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/binder/binder_locked/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/binder/binder_unlock/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/binder/binder_transaction/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/binder/binder_transaction_received/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/binder/binder_transaction_alloc_buf/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/cgroup/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/cpufreq_interactive/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/dma_fence/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/fence/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/i2c/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/i2c/i2c_read/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/i2c/i2c_write/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/i2c/i2c_result/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/i2c/i2c_reply/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/i2c/smbus_read/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/i2c/smbus_write/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/i2c/smbus_result/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/i2c/smbus_reply/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/kmem/rss_stat/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/kmem/ion_heap_grow/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/kmem/ion_heap_shrink/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/lowmemorykiller/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/lowmemorykiller/lowmemory_kill/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/mm_event/mm_event_record/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/oom/oom_score_adj_update/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/power/cpu_frequency/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/power/cpu_idle/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/power/clock_set_rate/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/power/cpu_frequency_limits/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/power/gpu_frequency/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/sched/sched_switch/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/sched/sched_wakeup/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/sched/sched_blocked_reason/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/sched/sched_cpu_hotplug/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/sched/sched_pi_setprio/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/sched/sched_process_exit/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/sched/sched_waking/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/signal/signal_generate/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/signal/signal_deliver/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/sync/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/task/task_rename/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/task/task_newtask/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/vmscan/mm_vmscan_direct_reclaim_begin/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/vmscan/mm_vmscan_direct_reclaim_end/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/vmscan/mm_vmscan_kswapd_wake/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/vmscan/mm_vmscan_kswapd_sleep/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/block/block_rq_issue/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/block/block_rq_complete/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/ext4/ext4_da_write_begin/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/ext4/ext4_da_write_end/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/ext4/ext4_es_lookup_extent_enter/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/ext4/ext4_es_lookup_extent_exit/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/ext4/ext4_load_inode/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/ext4/ext4_sync_file_enter/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/ext4/ext4_sync_file_exit/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/f2fs/f2fs_get_data_block/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/f2fs/f2fs_iget/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/f2fs/f2fs_sync_file_enter/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/f2fs/f2fs_sync_file_exit/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/f2fs/f2fs_write_begin/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/f2fs/f2fs_write_end/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/filemap/mm_filemap_add_to_page_cache/enable",
"chmod 0666 /sys/kernel/debug/tracing/events/filemap/mm_filemap_delete_from_page_cache/enable",
"chmod 0666 /sys/kernel/debug/tracing/options/overwrite",
"chmod 0666 /sys/kernel/debug/tracing/options/print-tgid",
"chmod 0666 /sys/kernel/debug/tracing/options/record-tgid",
"chmod 0666 /sys/kernel/debug/tracing/per_cpu/cpu0/trace",
"chmod 0666 /sys/kernel/debug/tracing/per_cpu/cpu1/trace",
"chmod 0666 /sys/kernel/debug/tracing/per_cpu/cpu2/trace",
"chmod 0666 /sys/kernel/debug/tracing/per_cpu/cpu3/trace",
"chmod 0666 /sys/kernel/debug/tracing/per_cpu/cpu4/trace",
"chmod 0666 /sys/kernel/debug/tracing/per_cpu/cpu5/trace",
"chmod 0666 /sys/kernel/debug/tracing/per_cpu/cpu6/trace",
"chmod 0666 /sys/kernel/debug/tracing/per_cpu/cpu7/trace",
"chmod 0666 /sys/kernel/debug/tracing/per_cpu/cpu8/trace",
"chmod 0666 /sys/kernel/debug/tracing/per_cpu/cpu9/trace",
"chmod 0666 /sys/kernel/debug/tracing/per_cpu/cpu10/trace",
"chmod 0666 /sys/kernel/debug/tracing/per_cpu/cpu11/trace",
"chmod 0666 /sys/kernel/debug/tracing/per_cpu/cpu12/trace",
"chmod 0666 /sys/kernel/debug/tracing/per_cpu/cpu13/trace",
"chmod 0666 /sys/kernel/debug/tracing/per_cpu/cpu14/trace",
"chmod 0666 /sys/kernel/debug/tracing/per_cpu/cpu15/trace"
Vold 就是负责挂载SD卡的，vold 的全称是volume daemon。
实际上是负责完成系统的CDROM,USB 大容量存储，MMC 卡等扩展存储的挂载任务自动完成的守护进程。
它提供的主要特点是支持这些存储外设的热插拔。
# base/startup/init_lite/services/etc/init.cfg
"jobs" : [{
"name" : "early-fs",
"cmds" : [
"start vold"
]
}
- 加载 hi_securec.ko 安全模块
- 加载 mmz模块驱动 hi_osal.ko
在海思平台上将内存分为两个部分：os内存和mmz内存。
os内存指：由linux操作系统管理的内存；
mmz内存：由mmz驱动模块进行管理供媒体业务单独使用的内存，在驱动加载时可以指定该模块管理内存的大小。
可以参考：《hisi mmz模块驱动讲解》 - 加载中断模块驱动 hi_irq.ko
- 加载 proc 虚拟文件系统模块驱动 hi_proc.ko
- 加载Hi3516DV300芯片的linux内核驱动模块驱动 sys_config.ko
sys_config的源码位于：OpenHarmonydevicehisiliconhispark_taurussdk_linuxsocsrcinterdrvhi3516cv500sysconfig
有关 /device/hisilicon/hispark_taurus/sdk_linux/soc 目录结构如下：
/device/hisilicon/hispark_taurus/sdk_linux/soc
├── ko # Hi3516DV300芯片的内核模块加载脚本
├── lib # Hi3516DV300芯片的媒体图形库文件、LICENSE文件
└── src # Hi3516DV300芯片的linux内核驱动模块源码、LICENSE文件
├── interdrv # 外设模块
│ ├── common # 各芯片通用模块
│ │ ├── cipher # 加解密模块
│ │ ├── hi_adc # adc总线控制器 // 编译生成：hi3516cv500_adc.ko
│ │ ├── hi_ir # 红外控制器 // 编译生成：hi3516cv500_ir.ko
│ │ ├── hi_irq # 用户态驱动中断注册管理模块 // 编译生成：hi_irq.ko
│ │ ├── hi_proc # 调试信息管理模块 // 编译生成：hi_proc.ko
│ │ └── wtdg # 看门狗 // 编译生成：hi3516cv500_wdt.ko
│ └── hi3516cv500 # 芯片相关模块
│ ├── mipi_rx # mipi协议rx方向
│ ├── mipi_tx # mipi协议tx方向
│ └── sysconfig # 系统管脚配置相关配置
├── mpp # 图形媒体相关模块
│ ├── cbb
│ │ ├── based # 日志相关功能
│ │ ├── sysd # 系统基础模块，提供内存、模块绑定等功能
│ │ └── vo # video output
│ └── component
│ ├── hdmi # HDMI接口输出
│ ├── hifb # frame buffer管理
│ └── tde # Two Dimensional Engine
└── osal # 驱动适配层，用于屏蔽系统差异，提供统一接口
- 加载device/hisilicon/hispark_taurus/sdk_linux/soc/下面的Hi3516DV300芯片的内核模块
# code-v3.0-LTSOpenHarmonydevicehisiliconhispark_taurussdk_linuxBUILD.gn sdk_modules_name_list = [ "hi3516cv500_base.ko", // device/hisilicon/hispark_taurus/sdk_linux/soc/src/mpp/cbb/based/ "hi3516cv500_hdmi.ko", // device/hisilicon/hispark_taurus/sdk_linux/soc/src/mpp/component/hdmi/ "hi3516cv500_ir.ko", // device/hisilicon/hispark_taurus/sdk_linux/soc/src/interdrv/common/hi_ir/ "hi3516cv500_sys.ko", // device/hisilicon/hispark_taurus/sdk_linux/soc/src/mpp/cbb/sysd/ "hi3516cv500_tde.ko", // device/hisilicon/hispark_taurus/sdk_linux/soc/src/mpp/component/tde/ "hi3516cv500_vo_dev.ko", // device/hisilicon/hispark_taurus/sdk_linux/soc/src/mpp/cbb/vo/vo_dev/ "hi3516cv500_wdt.ko", // device/hisilicon/hispark_taurus/sdk_linux/soc/src/interdrv/common/wtdg/ "hi_cipher.ko", // device/hisilicon/hispark_taurus/sdk_linux/soc/src/interdrv/common/cipher/ "hifb.ko", // device/hisilicon/hispark_taurus/sdk_linux/soc/src/mpp/component/hifb/ "hi_irq.ko", // device/hisilicon/hispark_taurus/sdk_linux/soc/src/interdrv/common/hi_irq/ "hi_mipi_rx.ko", // device/hisilicon/hispark_taurus/sdk_linux/soc/src/interdrv/hi3516cv500/mipi_rx/ "hi_mipi_tx.ko", // device/hisilicon/hispark_taurus/sdk_linux/soc/src/interdrv/hi3516cv500/mipi_tx/ "hi_osal.ko", // device/hisilicon/hispark_taurus/sdk_linux/soc/src/osal/ "hi_proc.ko", // device/hisilicon/hispark_taurus/sdk_linux/soc/src/interdrv/common/hi_proc/ "sys_config.ko", // device/hisilicon/hispark_taurus/sdk_linux/soc/src/interdrv/hi3516cv500/sysconfig/ "load3516dv300_user", // device/hisilicon/hispark_taurus/sdk_linux/soc/ko/load3516dv300_user ]
- 加载frame buffer管理驱动 hifb.ko， HDMI驱动模块hi3516cv500_hdmi.ko， 及hi_mipi_rx 总线驱动模块
配置文件内容如下：
device/hisilicon/hi3516dv300/build/rootfs/init.Hi3516DV300.cfg
{ "jobs" : [{
"name" : "fs",
"cmds" : [
"insmod /vendor/modules/hi_securec.ko",
"insmod /vendor/modules/hi_osal.ko anony=1 mmz_allocator=hisi mmz=anonymous,0,0xA8000000,384M || report_error",
"insmod /vendor/modules/hi_irq.ko",
"insmod /vendor/modules/hi_proc.ko",
"insmod /vendor/modules/sys_config.ko chip=hi3516dv300 sensors=sns0=imx335,sns1=NULL,g_cmos_yuv_flag=0",
"insmod /vendor/modules/hi3516cv500_base.ko",
"insmod /vendor/modules/hi3516cv500_sys.ko",
"insmod /vendor/modules/hi3516cv500_tde.ko",
"insmod /vendor/modules/hi3516cv500_vo_dev.ko",
"insmod /vendor/modules/hifb.ko video="hifb:vram0_size:16200"",
"insmod /vendor/modules/hi3516cv500_hdmi.ko",
"insmod /vendor/modules/hi_mipi_rx.ko"
- 运行 /system/bin/vdc，全盘加密相关
- 挂载 rootfs 文件系统到根目录
- 挂载Sdcard 到 /storage
# base/startup/init_lite/services/etc/init.cfg
{
"name" : "post-fs",
"cmds" : [
"exec - system system -- /system/bin/vdc checkpoint markBootAttempt",
"mount rootfs rootfs / remount bind ro nodev",
"mount none /mnt/runtime/default /storage bind rec", // 挂载Sdcard
"mount none none /storage slave rec",
"chown system cache /cache",
"chmod 0770 /cache",
"mkdir /cache/recovery 0770 system cache",
"mkdir /cache/backup_stage 0700 system system",
"mkdir /cache/backup 0700 system system",
"chown root log /proc/vmallocinfo",
"chmod 0440 /proc/vmallocinfo",
"chown root log /proc/slabinfo",
"chmod 0440 /proc/slabinfo",
"chown root system /proc/kmsg",
"chmod 0440 /proc/kmsg",
"chown root system /proc/sysrq-trigger",
"chmod 0220 /proc/sysrq-trigger",
"chown system log /proc/last_kmsg",
"chmod 0440 /proc/last_kmsg",
"chmod 0444 /sys/fs/selinux/policy",
"mkdir /cache/lost+found 0770 root root"
]
}
5.2 /system/etc/init/weston.cfg： 启动udevd_service设备事件管理服务
- 启动 udevd_service 设备事件管理服务，监听内核发出的设备事件， 并根据 udev 规则处理每个事件。
- 启动 multimodalinputservice 多模输入标准系统组件服务，主要功能就是对按键、触控、鼠标、语音等功能进行封装，向上提供统一的接口，类似安卓的 getevent
- 启动 weston 模块，Weston是Wayland compositor的参考实现，是一套display server(Wayland compositor)与client间的通信协议
- 接收内核发送来的设备事件，查看并处理udev事件队列中的事件，等全部处理完就退出。
# third_party/weston/weston.cfg
{
"jobs" : [{
"name" : "post-fs",
"cmds" : [
"start udevd_service", // third_party/eudev/src/udev/udevd.c
"sleep 1",
"start multimodalinputservice", // foundation/multimodalinput/input/
"start mmi_uinput_service", // 输入事件注入模块 foundation/multimodalinput/input
"sleep 2",
"export XDG_RUNTIME_DIR /data/weston",
"export XKB_CONFIG_ROOT /etc/xkb",
"export XKB_CONFIG_EXTRA_PATH /etc/xkb",
"mkdir /data/weston",
"chmod 777 /data/weston",
"start weston", // 启动 weston 模块 /third_party/weston/
"trigger weston_start",
"sleep 2",
"exec /system/bin/udevadm trigger", // 接收内核发送来的设备事件
"exec /system/bin/udevadm settle --timeout=30" // 查看udev事件队列，如果所有事件全部处理完就退出, 超时时间30s
]
}
],
"services" : [{
"name" : "weston",
"path" : ["/system/bin/weston", "-c", "/system/etc/weston.ini", "-B", "drm-backend.so", "--tty=1", "--use-pixman"],
"disabled" : 1
}, {
"name" : "hdi_weston",
"path" : ["/system/bin/weston", "-c", "/system/etc/weston.ini", "-B", "hdi-backend.so"],
"disabled" : 1
}, {
"name" : "multimodalinputservice",
"path" : ["/system/bin/sa_main", "/system/profile/multimodalinputservice.xml"],
"uid" : "system",
"gid" : ["system", "shell", "uhid"]
}, {
"name" : "mmi_uinput_service",
"path" : ["/system/bin/uinput_inject"],
"uid" : "root",
"gid" : ["system", "shell", "uhid"]
}, {
"name" : "udevd_service",
"path" : ["/system/bin/udevd"],
"uid" : "root",
"gid" : ["system"]
}
]
}
# base/startup/init_lite/services/etc/init.cfg
{
"name" : "late-fs",
"cmds" : [
"chmod 0755 /sys/kernel/debug/tracing"
]
6.2 /system/etc/init/distributedpermission_service.cfg：启动分布式权限管理服务
启动 dps_service 分布式权限管理服务
# base/security/permission/services/permission_standard/distributedpermissionmanagerservice/distributedpermission_service.cfg
{
"jobs" : [{
"name" : "late-fs",
"cmds" : [
"start dps_service"
]}],
"services" : [{
"name" : "dps_service",
"path" : ["/system/bin/sa_main", "/system/profile/dps_service.xml"],
"importance" : -20,
"uid" : "system",
"gid" : ["system"]
}]}
6.3 /system/etc/init/appspawn.cfg：启动 appspawn 应用孵化器组件服务
启动appspawn 应用孵化器组件服务
# base/startup/appspawn_standard/appspawn.cfg
{
"jobs" : [{
"name" : "late-fs",
"cmds" : [
"start appspawn"
]}],
"services" : [{
"name" : "appspawn",
"path" : ["/system/bin/appspawn"],
"importance" : -20,
"uid" : "root",
"gid" : ["root"]
}]}
6.4 /system/etc/init/lmks.cfg：启动 lmks 用户程序管理服务
启动 lmks 用户程序管理服务
# foundation/appexecfwk/standard/services/appmgr/lmks.cfg
{
"jobs" : [{
"name" : "late-fs",
"cmds" : [
"start lmks"
]}],
"services" : [{
"name" : "lmks",
"path" : ["/system/bin/lmks"],
"importance" : -20,
"uid" : "root",
"gid" : ["root"]
}]}
6.5 /system/etc/init/installs.cfg：启动包管理服务
# foundation/appexecfwk/standard/services/bundlemgr/installs.cfg
{
"jobs" : [{
"name" : "late-fs",
"cmds" : [
"start installs"
]
}
],
"services" : [{
"name" : "installs",
"path" : ["/system/bin/installs"],
"importance" : -20,
"uid" : "root",
"gid" : ["root"]
}
]
}
初始化系统中/data/目录下一些文件夹，并赋予相关的权限。
# base/startup/init_lite/services/etc/init.cfg
{
"name" : "post-fs-data",
"cmds" : [
"chown system system /data",
"chmod 0771 /data",
"mkdir /data/bootchart 0755 shell shell",
"mkdir /data/app-staging 0750 system system",
"copy /data/system/entropy.dat /dev/urandom",
"mkdir /data/misc 01771 system misc",
"mkdir /data/misc/recovery 0770 system log",
"copy /data/misc/recovery/ro.build.fingerprint /data/misc/recovery/ro.build.fingerprint.1",
"chmod 0440 /data/misc/recovery/ro.build.fingerprint.1",
"chown system log /data/misc/recovery/ro.build.fingerprint.1",
"write /data/misc/recovery/ro.build.fingerprint ${ro.build.fingerprint}",
"chmod 0440 /data/misc/recovery/ro.build.fingerprint",
"chown system log /data/misc/recovery/ro.build.fingerprint",
"mkdir /data/misc/recovery/proc 0770 system log",
"copy /data/misc/recovery/proc/version /data/misc/recovery/proc/version.1",
"chmod 0440 /data/misc/recovery/proc/version.1",
"chown system log /data/misc/recovery/proc/version.1",
"copy /proc/version /data/misc/recovery/proc/version",
"chmod 0440 /data/misc/recovery/proc/version",
"chown system log /data/misc/recovery/proc/version",
"mkdir /data/misc/bluedroid 02770 bluetooth bluetooth",
"chmod 0660 /data/misc/bluedroid/bt_config.conf",
"chown bluetooth bluetooth /data/misc/bluedroid/bt_config.conf",
"mkdir /data/misc/bluetooth 0770 bluetooth bluetooth",
"mkdir /data/misc/bluetooth/logs 0770 bluetooth bluetooth",
"mkdir /data/misc/keystore 0700 keystore keystore",
"mkdir /data/misc/gatekeeper 0700 system system",
"mkdir /data/misc/keychain 0771 system system",
"mkdir /data/misc/net 0750 root shell",
"mkdir /data/misc/radio 0770 system radio",
"mkdir /data/misc/sms 0770 system radio",
"mkdir /data/misc/carrierid 0770 system radio",
"mkdir /data/misc/apns 0770 system radio",
"mkdir /data/misc/zoneinfo 0775 system system",
"mkdir /data/misc/network_watchlist 0774 system system",
"mkdir /data/misc/textclassifier 0771 system system",
"mkdir /data/misc/vpn 0770 system vpn",
"mkdir /data/misc/shared_relro 0771 shared_relro shared_relro",
"mkdir /data/misc/systemkeys 0700 system system",
"mkdir /data/misc/wifi 0770 wifi wifi",
"mkdir /data/misc/wifi/sockets 0770 wifi wifi",
"mkdir /data/misc/wifi/wpa_supplicant 0770 wifi wifi",
"mkdir /data/misc/ethernet 0770 system system",
"mkdir /data/misc/dhcp 0770 dhcp dhcp",
"mkdir /data/misc/user 0771 root root",
"mkdir /data/misc/perfprofd 0775 root root",
"chmod 0660 /data/misc/wifi/wpa_supplicant.conf",
"mkdir /data/local 0751 root root",
"mkdir /data/misc/media 0700 media media",
"mkdir /data/misc/audioserver 0700 audioserver audioserver",
"mkdir /data/misc/cameraserver 0700 cameraserver cameraserver",
"mkdir /data/misc/vold 0700 root root",
"mkdir /data/misc/boottrace 0771 system shell",
"mkdir /data/misc/update_engine 0700 root root",
"mkdir /data/misc/update_engine_log 02750 root log",
"mkdir /data/misc/trace 0700 root root",
"mkdir /data/misc/wmtrace 0700 system system",
"mkdir /data/misc/profiles 0771 system system",
"mkdir /data/misc/profiles/cur 0771 system system",
"mkdir /data/misc/profiles/ref 0771 system system",
"mkdir /data/misc/profman 0770 system shell",
"mkdir /data/misc/gcov 0770 root root",
"mkdir /data/preloads 0775 system system",
"mkdir /data/vendor 0771 root root",
"mkdir /data/vendor_ce 0771 root root",
"mkdir /data/vendor_de 0771 root root",
"mkdir /data/vendor/hardware 0771 root root",
"mkdir /data/local/tmp 0771 shell shell",
"mkdir /data/local/traces 0777 shell shell",
"mkdir /data/data 0771 system system",
"mkdir /data/app-private 0771 system system",
"mkdir /data/app-ephemeral 0771 system system",
"mkdir /data/app-asec 0700 root root",
"mkdir /data/app-lib 0771 system system",
"mkdir /data/app 0771 system system",
"mkdir /data/ota 0771 root root",
"mkdir /data/ota_package 0770 system cache",
"mkdir /data/resource-cache 0771 system system",
"chown system system /data/resource-cache",
"chmod 0771 /data/resource-cache",
"mkdir /data/lost+found 0770 root root",
"mkdir /data/drm 0770 drm drm",
"mkdir /data/mediadrm 0770 mediadrm mediadrm",
"mkdir /data/nfc 0770 nfc nfc",
"mkdir /data/nfc/param 0770 nfc nfc",
"mkdir /data/backup 0700 system system",
"mkdir /data/ss 0700 system system",
"mkdir /data/system 0775 system system",
"mkdir /data/system/dropbox 0700 system system",
"mkdir /data/system/heapdump 0700 system system",
"mkdir /data/system/users 0775 system system",
"mkdir /data/system_de 0770 system system",
"mkdir /data/system_ce 0770 system system",
"mkdir /data/misc_de 01771 system misc",
"mkdir /data/misc_ce 01771 system misc",
"mkdir /data/user 0711 system system",
"mkdir /data/user_de 0711 system system",
"symlink /data/data /data/user/0",
"mkdir /data/media 0770 media_rw media_rw",
"mkdir /data/media/obb 0770 media_rw media_rw",
"mkdir /data/cache 0770 system cache",
"mkdir /data/cache/recovery 0770 system cache",
"mkdir /data/cache/backup_stage 0700 system system",
"mkdir /data/cache/backup 0700 system system",
"setparam sys.use_memfd false",
"chown root system /dev/fscklogs/log",
"chmod 0770 /dev/fscklogs/log"
]
}
7.2 /system/etc/init/hdf_peripheral.cfg：修改 hdf_input、hdf_audio、hdf_disp等节点所属者为system
# drivers/peripheral/base/hdf_peripheral.cfg
{
"jobs" : [{
"name" : "post-fs-data",
"cmds" : [
"chown system system /dev/hdf_disp",
"chown system system /dev/hdf_input_host",
"chown system system /dev/hdf_input_event1",
"chown system system /dev/hdf_input_event2",
"chown system system /dev/hdf_input_event3",
"chown system system /dev/hdf_input_event4",
"chown system system /dev/hdf_input_event5",
"chown system system /dev/hdf_input_event6",
"chown system system /dev/hdf_sensor_manager_ap",
"chown system system /dev/hdf_misc_vibrator",
"chown system system /dev/hdf_audio_render",
"chown system system /dev/hdf_audio_capture",
"chown system system /dev/hdf_audio_control",
"chown system system /dev/hdf_audio_codec_dev0",
"chown system system /dev/hdf_audio_smartpa_dev0",
"chown system system /dev/hdf_dsoftbus"
]}]
7.3 /system/etc/init/hdf_devmgr.cfg：启动 hdf_devmgr 用户态驱动子系统服务
# drivers/adapter/uhdf2/manager/hdf_devmgr.cfg
{
"jobs" : [{
"name" : "post-fs-data",
"cmds" : [
"start hdf_devmgr"
]}],
"services" : [{
"name" : "hdf_devmgr",
"path" : ["/system/bin/hdf_devmgr"],
"uid" : "root",
"gid" : ["system"]
}]
7.4 /system/etc/init/accountmgr.cfg：启动accountmgr系统帐号组件服务
# base/account/os_account/services/accountmgr/accountmgr.cfg
{
"jobs" : [{
"name" : "post-fs-data",
"cmds" : [
"start accountmgr"
]}],
"services" : [{
"name" : "accountmgr",
"path" : ["/system/bin/sa_main", "/system/profile/accountmgr.xml"],
"uid" : "system",
"gid" : ["system", "shell"],
"writepid" : [
"/dev/cpuset/foreground/tasks",
"/dev/stune/foreground/tasks",
"/dev/blkio/foreground/tasks"
]}]}
7.5 /system/etc/init/huks_service.cfg：启动huks_service鸿蒙通用密钥库系统服务
# base/security/huks/services/huks_standard/huks_service.cfg
{
"jobs" : [{
"name" : "post-fs-data",
"cmds" : [
"start huks_service"
]}],
"services" : [{
"name" : "huks_service",
"path" : ["/system/bin/sa_main", "/system/profile/huks_service.xml"],
"uid" : "system",
"gid" : ["system", "shell"]
}
7.6 /system/etc/init/deviceauth_service.cfg：启动deviceauth_service设备认证模块服务
# base/security/deviceauth/frameworks/src/standard/deviceauth_service.cfg
{
"jobs" : [{
"name" : "post-fs-data",
"cmds" : [
"start deviceauth_service"
]}],
"services" : [{
"name" : "deviceauth_service",
"path" : ["/system/bin/deviceauth_service"],
"uid" : "system",
"gid" : ["system", "shell"]
}]}
7.7 /system/etc/init/faultloggerd32.cfg：启动32位系统崩溃临时日志管理模块
启动崩溃临时日志管理模块，日志保存在/data/log/faultlog/目录下
# base/hiviewdfx/faultloggerd/services/config/faultloggerd32.cfg
{
"name" : "post-fs-data",
"cmds" : [
"mkdir /data/log/faultlog/ 0770 system system",
"mkdir /data/log/faultlog/temp/ 0770 system system",
"start faultloggerd"
] } ],
"services" : [{
"name" : "faultloggerd",
"path" : ["/system/bin/faultloggerd"],
"uid" : "root",
"gid" : ["system", "log"],
"writepid" : [
"/dev/cpuset/system-background/tasks"
] } ]
7.8 /system/etc/init/faultloggerd64.cfg：启动64位系统崩溃临时日志管理模块
# base/hiviewdfx/faultloggerd/services/config/faultloggerd64.cfg
{
"name" : "post-fs-data",
"cmds" : [
"mkdir /data/log/faultlog/ 0770 system system",
"mkdir /data/log/faultlog/temp/ 0770 system system",
"start faultloggerd"
]
}
],
"services" : [{
"name" : "faultloggerd",
"path" : ["/system/bin/faultloggerd"],
"uid" : "root",
"gid" : ["system", "log"],
"writepid" : [
"/dev/cpuset/system-background/tasks"
]
7.9 /system/etc/init/hilogd.cfg： 启动日志文件系统服务，保存在/data/log/
# base/hiviewdfx/hilog/services/hilogd/etc/hilogd.cfg
{
"name" : "post-fs-data",
"cmds" : [
"mkdir /data/log/ 0770 system log",
"mkdir /data/log/hilog/ 0750 logd log",
"start hilogd"
] } ],
"services" : [{
"name" : "hilogd",
"path" : ["/system/bin/hilogd"],
"disabled" : 1,
"uid" : "logd",
"gid" : "log",
"socket" : [
"hilogInput dgram 0666 logd logd passcred",
"hilogControl seqpacket 0600 logd logd false"
]
7.10 /system/etc/init/hiview.cfg： 启动终端设备维测服务集
# base/hiviewdfx/hiview/service/config/hiview.cfg
{
"jobs" : [{
"name" : "post-fs-data",
"cmds" : [
"mkdir /data/log/ 0770 system log",
"mkdir /data/log/faultlog/ 0770 system system",
"mkdir /data/log/faultlog/temp/ 0770 system system",
"mkdir /data/log/faultlog/faultlogger/ 0770 system system",
"start hiview"
] }],
"services" : [{
"name" : "hiview",
"path" : ["/system/bin/hiview"],
"uid" : "system",
"gid" : ["system", "log"],
"writepid" : [
"/dev/cpuset/system-background/tasks"
],
"socket" : [
"hisysevent dgram 0666 root system passcred"
]} ]
7.11 /system/etc/init/softbus_server.cfg： 启动布式软总线组件服务
# foundation/communication/dsoftbus/core/frame/standard/server/src/softbus_server.cfg
{
"jobs" : [{
"name" : "post-fs-data",
"cmds" : [
"start softbus_server"
]
}
],
"services" : [{
"name" : "softbus_server",
"path" : ["/system/bin/sa_main", "/system/profile/softbus_server.xml"],
"uid" : "system",
"gid" : ["system", "shell"]
}
]
}
7.12 /system/etc/init/wifi_standard.cfg： 启动wifi 无线局域网组件
# foundation/communication/wifi/services/wifi_standard/etc/init/wifi_standard.cfg
{
"jobs" : [{
"name" : "post-fs-data",
"cmds" : [
"mkdir /data/dhcp",
"start wifi_manager_service"
]}],
"services" : [{
"name" : "wifi_manager_service",
"path" : ["/system/bin/sa_main", "/system/profile/wifi_manager_service.xml"],
"uid" : "root",
"gid" : ["root", "shell"]
}]}
7.13 /system/etc/init/wifi_hal_service.cfg： 启动wifi hal service
# foundation/communication/wifi/services/wifi_standard/wifi_hal/etc/init/wifi_hal_service.cfg
{
"jobs" : [{
"name" : "post-fs-data",
"cmds" : [
"start wifi_hal_service"
] }],
"services" : [{
"name" : "wifi_hal_service",
"path" : ["/system/bin/wifi_hal_service"],
"uid" : "root",
"gid" : ["root", "shell"]
}]}
7.14 /system/etc/init/bluetooth_service.cfg： 启动蓝牙服务组件
# foundation/communication/bluetooth/services/bluetooth_standard/etc/init/bluetooth_service.cfg
{
"jobs" : [{
"name" : "post-fs-data",
"cmds" : [
"mkdir /data/bluetooth",
"start bluetooth_service"
] }],
"services" : [{
"name" : "bluetooth_service",
"path" : ["/system/bin/sa_main", "/system/profile/bluetooth_service.xml"],
"uid" : "root",
"gid" : ["root", "shell"]
}]}
7.15 /system/etc/init/pulseaudio.cfg： 启动音频组件
# foundation/multimedia/audio_standard/services/etc/pulseaudio.cfg
{
"jobs" : [{
"name" : "post-fs-data",
"cmds" : [
"rm /data/data/.pulse_dir/pid",
"mkdir /data/data/.pulse_dir",
"chmod 777 /data/data/.pulse_dir",
"chown system shell /data/data/.pulse_dir",
"export PULSE_STATE_PATH /data/data/.pulse_dir",
"export PULSE_RUNTIME_PATH /data/data/.pulse_dir",
"start pulseaudio",
"exec /system/bin/sleep 4",
"trigger audio_policy_start"
]} ],
"services" : [{
"name" : "pulseaudio",
"path" : ["/system/bin/sa_main", "/system/profile/pulseaudio.xml"],
"uid" : "system",
"gid" : ["system", "shell"],
"disabled" : 1
} ]}
7.16 /system/etc/init/distributedsched.cfg： 启动分布式任务调度模块
# foundation/distributedschedule/dmsfwk/etc/init/distributedsched.cfg
{
"jobs" : [{
"name" : "post-fs-data",
"cmds" : [
"start distributedsched"
]}],
"services" : [{
"name" : "distributedsched",
"path" : ["/system/bin/sa_main", "/system/profile/distributedsched.xml"],
"uid" : "system",
"gid" : ["system", "shell"]
}]
# base/startup/init_lite/services/etc/init.cfg
{
"name" : "load_persist_props_action",
"cmds" : [
"load_persist_params load_persist_params"
]
}
# base/startup/init_lite/services/etc/init.cfg
{
"name" : "firmware_mounts_complete",
"cmds" : [
"rm /dev/.booting"
]}
在所有的cfg，没有配置这一阶段的代码。
# base/startup/init_lite/services/etc/init.cfg
{
"name" : "boot",
"cmds" : [
"write /proc/sys/net/core/xfrm_acq_expires 3600",
"write /proc/sys/vm/overcommit_memory 1",
"write /proc/sys/vm/min_free_order_shift 4",
"chown root system /sys/module/lowmemorykiller/parameters/adj",
"chmod 0664 /sys/module/lowmemorykiller/parameters/adj",
"chown root system /sys/module/lowmemorykiller/parameters/minfree",
"chmod 0664 /sys/module/lowmemorykiller/parameters/minfree",
"chown root system /sys/block/zram0/idle",
"chmod 0664 /sys/block/zram0/idle",
"chown root system /sys/block/zram0/writeback",
"chmod 0664 /sys/block/zram0/writeback",
"write /proc/sys/vm/dirty_expire_centisecs 200",
"write /proc/sys/vm/dirty_background_ratio 5",
"write /sys/fs/f2fs/${dev.mnt.blk.data}/cp_interval 200",
"chown radio system /sys/android_power/state",
"chown radio system /sys/android_power/request_state",
"chown radio system /sys/android_power/acquire_full_wake_lock",
"chown radio system /sys/android_power/acquire_partial_wake_lock",
"chown radio system /sys/android_power/release_wake_lock",
"chown system system /sys/power/autosleep",
"chown radio wakelock /sys/power/wake_lock",
"chown radio wakelock /sys/power/wake_unlock",
"chmod 0660 /sys/power/wake_lock",
"chmod 0660 /sys/power/wake_unlock",
"chown system system /sys/devices/system/cpu/cpufreq/interactive/timer_rate",
"chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/timer_rate",
"chown system system /sys/devices/system/cpu/cpufreq/interactive/timer_slack",
"chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/timer_slack",
"chown system system /sys/devices/system/cpu/cpufreq/interactive/min_sample_time",
"chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/min_sample_time",
"chown system system /sys/devices/system/cpu/cpufreq/interactive/hispeed_freq",
"chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/hispeed_freq",
"chown system system /sys/devices/system/cpu/cpufreq/interactive/target_loads",
"chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/target_loads",
"chown system system /sys/devices/system/cpu/cpufreq/interactive/go_hispeed_load",
"chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/go_hispeed_load",
"chown system system /sys/devices/system/cpu/cpufreq/interactive/above_hispeed_delay",
"chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/above_hispeed_delay",
"chown system system /sys/devices/system/cpu/cpufreq/interactive/boost",
"chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/boost",
"chown system system /sys/devices/system/cpu/cpufreq/interactive/boostpulse",
"chown system system /sys/devices/system/cpu/cpufreq/interactive/input_boost",
"chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/input_boost",
"chown system system /sys/devices/system/cpu/cpufreq/interactive/boostpulse_duration",
"chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/boostpulse_duration",
"chown system system /sys/devices/system/cpu/cpufreq/interactive/io_is_busy",
"chmod 0660 /sys/devices/system/cpu/cpufreq/interactive/io_is_busy",
"chown system system /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq",
"chmod 0660 /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq",
"chown system system /sys/class/leds/vibrator/trigger",
"chown system system /sys/class/leds/vibrator/activate",
"chown system system /sys/class/leds/vibrator/brightness",
"chown system system /sys/class/leds/vibrator/duration",
"chown system system /sys/class/leds/vibrator/state",
"chown system system /sys/class/timed_output/vibrator/enable",
"chown system system /sys/class/leds/keyboard-backlight/brightness",
"chown system system /sys/class/leds/lcd-backlight/brightness",
"chown system system /sys/class/leds/button-backlight/brightness",
"chown system system /sys/class/leds/jogball-backlight/brightness",
"chown system system /sys/class/leds/red/brightness",
"chown system system /sys/class/leds/green/brightness",
"chown system system /sys/class/leds/blue/brightness",
"chown system system /sys/class/leds/red/device/grpfreq",
"chown system system /sys/class/leds/red/device/grppwm",
"chown system system /sys/class/leds/red/device/blink",
"chown system system /sys/module/sco/parameters/disable_esco",
"chown system system /sys/kernel/ipv4/tcp_wmem_min",
"chown system system /sys/kernel/ipv4/tcp_wmem_def",
"chown system system /sys/kernel/ipv4/tcp_wmem_max",
"chown system system /sys/kernel/ipv4/tcp_rmem_min",
"chown system system /sys/kernel/ipv4/tcp_rmem_def",
"chown system system /sys/kernel/ipv4/tcp_rmem_max",
"chown root radio /proc/cmdline",
"setparam net.tcp.default_init_rwnd 60"
11.2 /etc/init.Hi3516DV300.cfg： 初始化graphics图形相关节点权限
# device/hisilicon/hi3516dv300/build/rootfs/init.Hi3516DV300.cfg
{
"jobs" : [{
"name" : "boot",
"cmds" : [
"chmod 777 /dev/ttyAMA2",
"chmod 775 /sys/class/rfkill/rfkill0/state",
"chmod 777 /dev/rtkbt_dev",
"chmod 0440 /proc/interrupts",
"chmod 0440 /proc/stat",
"chmod 0640 /dev/xt_qtaguid",
"chmod 0660 /proc/net/xt_qtaguid/ctrl",
"chmod 0440 /proc/net/xt_qtaguid/stats",
"chmod 666 /dev/mali0",
"chown system graphics /dev/mali0",
"chown system graphics /dev/graphics/fb0",
"chmod 666 /dev/ion",
"chown system system /dev/ion"
11.3 /etc/init.Hi3516DV300.usb.cfg： 挂载configfs文件系统、usb functions驱动
- 挂载configfs文件系统
- 初始化 usb_gadget 相关信息，如pid、vid等
- 挂载usb 相关驱动到/dev/usb-ffs/hdc
# device/hisilicon/hi3516dv300/build/rootfs/init.Hi3516DV300.usb.cfg
{
"jobs" : [{
"name" : "boot",
"cmds" : [
"mkdir /dev/usb-ffs 0770 shell shell",
"mkdir /dev/usb-ffs/hdc 0770 shell shell",
"mount configfs none /config", // 挂载configfs文件系统
"mkdir /config/usb_gadget/g1 0770 shell shell", // 初始化 usb_gadget 相关信息，如pid、vid等
"write /config/usb_gadget/g1/idVendor 0x12D1",
"write /config/usb_gadget/g1/idProduct 0x5000",
"write /config/usb_gadget/g1/os_desc/use 1",
"write /config/usb_gadget/g1/bcdDevice 0x0223",
"write /config/usb_gadget/g1/bcdUSB 0x0200",
"mkdir /config/usb_gadget/g1/strings/0x409 0770",
"copy /sys/block/mmcblk0/device/cid /config/usb_gadget/g1/strings/0x409/serialnumber",
"write /config/usb_gadget/g1/strings/0x409/manufacturer HISILICON",
"write /config/usb_gadget/g1/strings/0x409/product "HDC Device"",
"mkdir /config/usb_gadget/g1/functions/ffs.hdc",
"mkdir /config/usb_gadget/g1/configs/b.1 0770 shell shell",
"mkdir /config/usb_gadget/g1/configs/b.1/strings/0x409 0770 shell shell",
"write /config/usb_gadget/g1/os_desc/b_vendor_code 0x1",
"write /config/usb_gadget/g1/os_desc/qw_sign MSFT100",
"write /config/usb_gadget/g1/configs/b.1/MaxPower 500",
"symlink /config/usb_gadget/g1/configs/b.1 /config/usb_gadget/g1/os_desc/b.1",
"mount functionfs hdc /dev/usb-ffs/hdc uid=2000,gid=2000", // 挂载`usb` 相关驱动到`/dev/usb-ffs/hdc`
"setparam sys.usb.configfs 1",
"setparam sys.usb.controller 100e0000.hidwc3_0"
]}, {
"name" : "param:sys.usb.config=none && param:sys.usb.configfs=1",
"condition" : "sys.usb.config=none && sys.usb.configfs=1",
"cmds" : [
"write /config/usb_gadget/g1/os_desc/use 0",
"setparam sys.usb.ffs.ready 0"
]}, {
"name" : "param:init.svc.hdcd=stopped",
"condition" : "init.svc.hdcd=stopped",
"cmds" : [
"setparam sys.usb.ffs.ready 0"
] }, {
"name" : "param:sys.usb.config=hdc && param:sys.usb.configfs=1",
"condition" : "sys.usb.config=hdc && sys.usb.configfs=1",
"cmds" : [
"write /config/usb_gadget/g1/idProduct 0x5000",
"write /config/usb_gadget/g1/os_desc/use 1"
] } ]}
11.4 /system/etc/init/telephony.cfg： 启动电话核心服务模块
# base/telephony/core_service/etc/init/telephony.cfg
{
"jobs" : [{
"name" : "boot",
"cmds" : [
"exec /system/bin/sleep 4",
"start telephony_sa"
]} ],
"services" : [{
"name" : "telephony_sa",
"path" : ["/system/bin/sa_main", "/system/profile/telephony.xml"],
"uid" : "system",
"gid" : ["system", "shell"]
} ]}
11.5 /system/etc/init/timeservice.cfg： 启动时间服务
# base/miscservices/time/etc/init/timeservice.cfg
{
"jobs" : [{
"name" : "boot",
"cmds" : [
"start time_service"
]}],
"services" : [{
"name" : "time_service",
"path" : ["/system/bin/sa_main", "/system/profile/time_service.xml"],
"uid" : "system",
"gid" : ["system", "shell"],
"caps" : ["SYS_TIME", "WAKE_ALARM"]
}
11.6 /system/etc/init/inputmethodservice.cfg： 启动输入法服务
# base/miscservices/inputmethod/etc/init/inputmethodservice.cfg
{
"jobs" : [{
"name" : "boot",
"cmds" : [
"start inputmethod_service"
] } ],
"services" : [{
"name" : "inputmethod_service",
"path" : ["/system/bin/sa_main", "/system/profile/inputmethod_service.xml"],
"uid" : "system",
"gid" : ["system", "shell"],
"caps" : ["SYS_TIME"]
} ]}
11.7 /system/etc/init/updater_sa.cfg： 启动升级服务器引擎，查询并下载升级包
# base/update/updateservice/engine/etc/updater_sa.cfg
{
"jobs" : [{
"name" : "boot",
"cmds" : [
"start updater_sa"
]}],
"services" : [{
"name" : "updater_sa",
"path" : ["/system/bin/sa_main", "/system/profile/updater_sa.xml"],
"uid" : "system",
"gid" : ["system", "shell"]
}]}
11.8 /system/etc/init/init.usb.cfg： 启动hdcd服务，用于调试系统，等通与安卓的adb
# base/startup/init_lite/services/etc/init.usb.cfg
{
"jobs" : [{
"name" : "boot",
"cmds" : [
"setparam sys.usb.configfs 0"
]
}, {
"name" : "boot && param:persist.sys.usb.config=*",
"condition" : "boot && persist.sys.usb.config=*",
"cmds" : [
"setparam sys.usb.config ${persist.sys.usb.config}"
]
}, {
"name" : "param:sys.usb.config=none && param:sys.usb.configfs=0",
"condition" : "sys.usb.config=none && sys.usb.configfs=0",
"cmds" : [
"stop hdcd"
]
}, {
"name" : "param:sys.usb.config=hdc && param:sys.usb.configfs=0",
"condition" : "sys.usb.config=hdc && sys.usb.configfs=0",
"cmds" : [
"start hdcd"
] }],
"services" : [{
"name" : "hdcd",
"path" : ["/system/bin/hdcd"],
"socket" : [
"hdcd seqpacket 660 system system false"
],
"disabled" : 1
}]}
11.9 /system/etc/init/foundation.cfg： 启动foundation服务
# foundation/appexecfwk/standard/sa_profile/foundation.cfg
{
"jobs" : [{
"name" : "boot",
"cmds" : [
"chown radio system /sys/power/wake_lock",
"chown radio system /sys/power/wake_unlock",
"chmod 0664 /sys/power/wakeup_count",
"start foundation"
]}],
"services" : [{
"name" : "foundation",
"path" : ["/system/bin/sa_main", "/system/profile/foundation.xml"],
"importance" : -20,
"uid" : "system",
"gid" : ["system"],
"caps" : ["SYS_PTRACE", "KILL"]
}
11.10 /system/etc/init/medialibrary_service.cfg： 启动媒体库组件
# foundation/multimedia/medialibrary_standard/services/etc/medialibrary_service.cfg
{
"jobs" : [{
"name" : "boot",
"cmds" : [
"start medialibrary_service"
]
}
],
"services" : [{
"name" : "medialibrary_service",
"path" : ["/system/bin/sa_main", "/system/profile/medialibrary_service.xml"]
}
]
}
11.11 /system/etc/init/camera_service.cfg： 启动相机组件
# foundation/multimedia/camera_standard/services/etc/camera_service.cfg
{
"jobs" : [{
"name" : "boot",
"cmds" : [
"start camera_service"
]} ],
"services" : [{
"name" : "camera_service",
"path" : ["/system/bin/sa_main", "/system/profile/camera_service.xml"],
"uid" : "cameraserver",
"gid" : ["system", "shell"]
}]}
11.12 /system/etc/init/media_service.cfg： 启动媒体组件
# foundation/multimedia/media_standard/services/etc/media_service.cfg
{
"jobs" : [{
"name" : "boot",
"cmds" : [
"start media_service"
] } ],
"services" : [{
"name" : "media_service",
"path" : ["/system/bin/sa_main", "/system/profile/media_service.xml"],
"uid" : "system",
"gid" : ["media_rw", "system"]
}]
11.13 /system/etc/init/distributed_data.cfg： 启动分布式数据服务
# foundation/distributeddatamgr/distributeddatamgr/services/distributeddataservice/app/distributed_data.cfg
{
"jobs":[{
"name" : "boot",
"cmds" : [
"start distributeddata"
] }
],
"services":[{
"name" : "distributeddata",
"path" : ["/system/bin/sa_main","/system/profile/distributeddata.xml"],
"caps" : ["DAC_READ_SEARCH"],
"uid" : "system",
"gid" : ["system","shell","readproc"],
"writepid":[
"/dev/cpuset/foreground/tasks",
"/dev/stune/foreground/tasks",
"/dev/blkio/foreground/tasks"
]}]
好，到此位置，整个鸿蒙系统的启动流程算是分析完了，
不过这样的启动流程还不够直观，接下来，我打算花时间，把这个启动流程以图的形式画出来，这样就会更加清晰直观。
敬请期待吧，周末愉快！！！
