Android系统编程移植、定制和调试

Android系统编程移植、定制和调试TOC\h\h目录\h第1章：Android系统编程简介-Chapter1:IntroductiontoAndroidSystemProgramming\h什么是系统编程？-Whatissystemprogramming?\h这本书的范围是什么？-Whatisthescopeofthisbook?\hAndroid系统概述-OverviewoftheAndroidsystem\h核心-Kernel\h哈尔-HAL\h安卓系统服务-Androidsystemservices\h宾德工控机-BinderIPC\h应用框架-Applicationframework\h恢复-Recovery\hAOSP衍生的第三方开源项目-Thethird-partyopensourceprojectsderivedfromAOSP\hLineageOS(CyanogenMod)\h安卓-x86-Android-x86\hCWM/CMR/TWRP\h整合战略-Strategyofintegration\h虚拟硬件参考平台-Virtualhardwarereferenceplatforms\h基于x86的Android模拟器简介-Introductiontothex86-basedAndroidemulator\h兰寿简介-Introductiontoranchu\h基于VirtualBox的Android模拟器-VirtualBox-basedAndroidemulators\h概括-Summary\h第2章：设置开发环境-Chapter2:SettingUptheDevelopmentEnvironment\hAndroid版本总结-SummaryofAndroidversions\h安装AndroidSDK并设置Android虚拟设备-InstallingAndroidSDKandsettingupanAndroidVirtualDevice\h在旧版本的SDK中创建AVD-CreatingAVDinanolderversionofSDK\h在最新版本的SDK中创建AVD-CreatingAVDinthelatestversionofSDK\h测试金鱼模拟器-Testingthegoldfishemulator\h测试ranchu模拟器-Testingranchuemulator\hAOSP构建环境和Android模拟器构建-TheAOSPbuildenvironmentandtheAndroidemulatorbuild\hAOSP构建环境-TheAOSPbuildenvironment\h安装所需的包-Installingtherequiredpackages\h安装OpenJDK7和8-InstallingOpenJDK7and8\h下载AOSP源代码-DownloadingtheAOSPsource\h安装仓库-Installingrepo\h初始化repo客户端并下载AOSP源代码树-InitializingarepoclientanddownloadingtheAOSPsourcetree\h构建AOSPAndroid模拟器镜像-BuildingAOSPAndroidemulatorimages\h测试AOSP图像-TestingAOSPimages\h创建您自己的存储库镜像-Creatingyourownrepositorymirror\h回购和清单-Repoandmanifest\h使用AOSP本地镜像-UsingalocalmirrorforAOSP\h创建您自己的GitHub镜像-CreatingyourownmirrorofGitHub\h获取GitHub外部的Git存储库-FetchingGitrepositoriesoutsideGitHub\h创建您自己的清单以供客户端下载-Creatingyourownmanifestforclientdownload\h概括-Summary\h第3章：发现内核、HAL和虚拟硬件-Chapter3:DiscoveringKernel,HAL,andVirtualHardware\hAOSP里面有什么？-WhatisinsidetheAOSP?\hAndroid模拟器HAL-AndroidemulatorHAL\h调用顺序-Callingsequence\h金鱼灯HAL-GoldfishlightsHAL\h系统服务和硬件管理器-Thesystemserviceandhardwaremanager\hAndroid模拟器内核和硬件-Androidemulatorkernelandhardware\hAndroid模拟器硬件-Androidemulatorhardware\h金鱼站台巴士-Goldfishplatformbus\hQEMU管道设备-QEMUpipedevice\h金鱼音频设备-Goldfishaudiodevice\h金鱼串口-Goldfishserialport\h金鱼仁-Goldfishkernel\hQEMU管道-QEMUpipe\h概括-Summary\h第4章：自定义Android模拟器-Chapter4:CustomizingtheAndroidEmulator\h为什么要定制Android模拟器-WhycustomizetheAndroidemulator\h了解构建层-Understandingbuildlayers\h构建变体-Buildvariants\h创建新的x86emu设备-Creatinganewx86emudevice\h从AOSP签出-CheckingoutfromtheAOSP\h从本地镜像查看-Checkingoutfromalocalmirror\h创建x86emu设备-Creatingx86emudevice\hAndroid产品.mk-AndroidProducts.mk\hBoardConfig.mk\h设备.mk-device.mk\h构建和测试x86emu-Buildingandtestingx86emu\h构建x86emu-Buildingx86emu\h测试x86emu-Testingx86emu\h与Eclipse集成-IntegratingwithEclipse\h概括-Summary\h第5章：启用ARM转换器并介绍NativeBridge-Chapter5:EnablingtheARMTranslatorandIntroducingNativeBridge\hNativeBridge简介-IntroducingNativeBridge\h将NativeBridge设置为ART初始化的一部分-SettingupNativeBridgeaspartoftheARTinitialization\h预初始化NativeBridge-Pre-initializingNativeBridge\h初始化本机桥-InitializingNativeBridge\h加载本地库-Loadinganativelibrary\h将Houdini集成到x86emu设备-IntegratingHoudinitothex86emudevice\h更改x86emu构建的配置-Changingtheconfigurationofthex86emubuild\h扩展x86emu设备-Extendingthex86emudevice\hBoardConfig.mk的更改-ChangestoBoardConfig.mk\h对x86emu_x86.mk的更改-Changestox86emu_x86.mk\h对device.mk的更改-Changestodevice.mk\h使用Android-x86实现-UsingtheAndroid-x86implementation\h分析libnb.so-Analyzinglibnb.so\h使用binfmt_misc-Usingbinfmt_misc\h构建和测试-Buildingandtesting\h测试命令行应用程序-Testingthecommand-lineapplication\h测试AndroidJNI应用程序-TestingtheAndroidJNIapplication\h概括-Summary\h第6章：使用自定义ramdisk调试启动过程-Chapter6:DebuggingtheBootUpProcessUsingaCustomizedramdisk\hAndroid启动流程分析-AnalyzingtheAndroidstartupprocess\h引导加载程序和内核-Bootloaderandthekernel\h分析init进程和ramdisk-Analyzingtheinitprocessandramdisk\h行动-Actions\h服务-Services\h设备特定的操作和服务-Device-specificactionsandservices\h源代码和清单更改-Sourcecodeandmanifestchanges\hAndroid-x86启动流程-TheAndroid-x86startupprocess\h使用initrd.img进行第一阶段启动-Thefirst-stagebootusinginitrd.img\hinitrd.img内部-Insideinitrd.img\h里面安装.img-Insideinstall.img\h使用initrd.img构建x86emu-Buildingx86emuwithinitrd.img\h创建文件系统映像-Creatingafilesystemimage\h内核变化-Kernelchanges\h在Android模拟器上启动磁盘映像-BootingadiskimageontheAndroidemulator\h概括-Summary\h第7章：在Android模拟器上启用Wi-Fi-Chapter7:EnablingWi-FiontheAndroidEmulator\hAndroid上的Wi-Fi-Wi-FionAndroid\hWi-Fi架构-TheWi-Fiarchitecture\hAndroid中的QEMU网络和wpa_supplicant-QEMUnetworkingandwpa_supplicantinAndroid\h将Wi-Fi添加到模拟器-AddingWi-Fitotheemulator\h在BoardConfig.mk中启用wpa_supplicant-Enablingwpa_supplicantinBoardConfig.mk\h提供正确的wpa_supplicant配置-Providingaproperwpa_supplicantconfiguration\h在初始化脚本中创建服务-Creatingservicesininitscripts\h初始化网络接口eth1-Initializingnetworkinterfaceeth1\h启动wpa_supplicant-Startingupwpa_supplicant\h构建源代码-Buildingthesourcecode\h获取源代码-Gettingthesourcecode\h使用initrd.img启用启动-Enablingbootwithinitrd.img\h在模拟器上测试Wi-Fi-TestingWi-Fionanemulator\h使用initrd.img启动Android模拟器-BootinganAndroidemulatorusinginitrd.img\h使用ramdisk.img启动Android模拟器-BootinganAndroidemulatorusingramdisk.img\h调试Wi-Fi启动进程-DebuggingWi-Fistartupprocesses\h概括-Summary\h第8章：在VirtualBox上创建您自己的设备-Chapter8:CreatingYourOwnDeviceonVirtualBox\hx86vbox的HAL-HALofx86vbox\hx86vbox的清单-Themanifestforx86vbox\h创建新的x86vbox设备-Creatinganewx86vboxdevice\hx86vbox的产品定义Makefile-ProductdefinitionMakefileofx86vbox\hx86vbox的板卡配置-Boardconfigurationofx86vbox\h常见的x86设备-Commonx86devices\h获取源代码并构建x86vbox设备-Gettingthesourcecodeandbuildingthex86vboxdevice\h启动过程和设备初始化-Bootupprocessanddeviceinitialization\hAndroid启动前的设备初始化-DeviceinitializationbeforeAndroidstart-up\hAndroid启动期间HAL初始化-HALinitializationduringtheAndroidstart-up\h概括-Summary\h第9章：使用PXE/NFS启动x86vbox-Chapter9:BootingUpx86vboxUsingPXE/NFS\h设置PXE启动环境-SettingupaPXEbootenvironment\h准备PXE引导ROM-PreparingPXEBootROM\h下载并构建LANBootROM-DownloadingandbuildingtheLANBootROM\h修复ROM映像-FixinguptheROMimage\h配置虚拟机以使用LANBootROM-ConfiguringthevirtualmachinetousetheLANBootROM\h设置PXE启动环境-SettingupthePXEbootenvironment\h配置和测试PXE启动-ConfiguringandtestingthePXEboot\h设置虚拟机-Settingupthevirtualmachine\h使用VirtualBox内部PXE启动和NAT-UsingVirtualBoxinternalPXEbootingwithNAT\h配置pxelinux.cfg-Configuringpxelinux.cfg\hpxelinux.cfg/默认-pxelinux.cfg/default\h设置串行端口以进行调试-Settingupaserialportfordebugging\hNFS文件系统-NFSfilesystem\h准备内核-Preparingthekernel\h设置NFS服务器-SettinguptheNFSserver\h配置PXE启动菜单-ConfiguringthePXEbootmenu\h引导至NFS安装-BootingtoNFSinstallation\h从硬盘启动-Bootingfromaharddisk\h启动至恢复-Bootingtorecovery\h概括-Summary\h第10章：启用图形-Chapter10:EnablingGraphics\hAndroid图形架构简介-IntroductiontotheAndroidgraphicsarchitecture\h深入研究图形HAL-DelvingintographicsHAL\h加载Gralloc模块-LoadingtheGrallocmodule\h初始化GPU-InitializingGPU\h初始化帧缓冲区-Initializingframebuffer\h分配和释放图形缓冲区-Allocatingandreleasingthegraphicbuffer\h从帧缓冲区分配-Allocatingfromframebuffer\h从系统内存分配-Allocatingfromsystemmemory\h释放图形缓冲区-Releasinggraphicbuffers\h渲染帧缓冲区-Renderingframebuffer\hAndroid模拟器的图形HAL-GraphicsHALoftheAndroidemulator\h硬件GLES仿真概述-OverviewofhardwareGLESemulation\h在GLES仿真中初始化GPU0和FB0-InitializingGPU0andFB0inGLESemulation\hGPU0设备实现-GPU0deviceimplementation\hFB0设备实现-FB0deviceimplementation\h概括-Summary\h第11章：启用VirtualBox特定的硬件接口-Chapter11:EnablingVirtualBox-SpecificHardwareInterfaces\hOpenGLES和图形硬件初始化-OpenGLESandgraphicshardwareinitialization\h加载OpenGLES库-LoadingOpenGLESlibraries\h分析加载过程-Analyzingtheloadingprocess\h加载驱动程序-Loadingthedriver\h创建渲染引擎-Creatingtherenderingengine\huvesafb帧缓冲区驱动程序-Theuvesafbframebufferdriver\h什么是uvesafb?-Whatisuvesafb?\h测试uvesafb帧缓冲区驱动程序-Testingtheuvesafbframebufferdriver\h在x86vbox中初始化uvesafb-Initializinguvesafbinx86vbox\h集成VirtualBox来宾添加-IntegratingVirtualBoxGuestAdditions\h构建VirtualBox来宾添加-BuildingVirtualBoxGuestAdditions\h集成vboxsf-Integratingvboxsf\h集成vboxvideo-Integratingvboxvideo\h使用VirtualBoxGuestAdditions构建和测试映像-BuildingandtestingimageswithVirtualBoxGuestAdditions\h概括-Summary\h第12章：恢复介绍-Chapter12:IntroducingRecovery\h恢复介绍-Recoveryintroduction\hAndroid设备分区-Androiddevicepartitions\h分析恢复情况-Analyzingrecovery\hBCB\h缓存分区-Cachepartition\h恢复主要流程-Mainflowofrecovery\h从BCB和缓存文件中检索参数-RetrievingargumentsfromBCBandcachefiles\h恢复出厂数据-Factorydatareset\hOTA更新-OTAupdate\h为x86vbox构建恢复-Buildingrecoveryforx86vbox\h建筑配置-Buildingconfiguration\hx86vbox的更改-Changestox86vbox\h恢复的变化-Changestorecovery\h新安装程序的更改-Changestonewinstaller\h测试恢复情况-Testingrecovery\h概括-Summary\h第13章：创建OTA包-Chapter13:CreatingOTAPackages\hOTA包里面有什么-WhatisinsideanOTApackage\h更新程序-Updater\h更新程序脚本-Theupdaterscript\h启迪功能-Edifyfunctions\h内置功能-Built-infunctions\h安装功能-Installationfunctions\h块图像功能-Blockimagefunctions\h设备扩展-Deviceextensions\h为x86vbox准备OTA包-PreparinganOTApackageforx86vbox\h删除对/system的依赖-Removingdependencieson/system\h恢复时硬件初始化-Hardwareinitializationinrecovery\h恢复时的最低执行环境-Minimumexecutionenvironmentinrecovery\h构建和测试-Buildingandtesting\h概括-Summary\h第14章：定制和调试恢复-Chapter14:CustomizingandDebuggingRecovery\h调试和测试原生Android应用程序-DebuggingandtestingnativeAndroidapplications\h使用GDB进行调试-DebuggingwithGDB\h与Eclipse集成-IntegrationwithEclipse\h扩展恢复和更新程序-Extendingrecoveryandtheupdater\h延长恢复时间-Extendingrecovery\h扩展更新程序-Extendingtheupdater\h扩展Python模块-ExtendingthePythonmodule\h构建和测试扩展恢复和更新程序-Buildingandtestingtheextendedrecoveryandupdater\h支持第三方恢复包-Supportingthethird-partyrecoverypackages\hXpose恢复包-Xposedrecoverypackage\h打开GApp-OpeningGApps\h概括-Summary\h指数-Index\h第1章：Android系统编程简介\h9\hWhatissystemprogramming?

\h什么是系统编程？\h10\hWhatisthescopeofthisbook?

\h这本书的范围是什么？\h11\hOverviewoftheAndroidsystem

\hAndroid系统概述\h13\hKernel

\h核心\h13\hHAL

\h哈尔\h15\hAndroidsystemservices

\h安卓系统服务\h15\hBinderIPC

\h宾德工控机\h16\hApplicationframework

\h应用框架\h16\hRecovery

\h恢复\h17\hThethird-partyopensourceprojectsderivedfromAOSP

\hAOSP衍生的第三方开源项目\h19\hLineageOS(CyanogenMod)\h19\hAndroid-x86

\h安卓-x86\h21\hCWM/CMR/TWRP\h22\hStrategyofintegration

\h整合战略\h23\hVirtualhardwarereferenceplatforms

\h虚拟硬件参考平台\h24\hIntroductiontothex86-basedAndroidemulator

\h基于x86的Android模拟器简介\h24\hIntroductiontoranchu

\h兰寿简介\h25\hVirtualBox-basedAndroidemulators

\h基于VirtualBox的Android模拟器\h26\hSummary

\h概括\h27\hChapter2:SettingUptheDevelopmentEnvironment

\h第2章：设置开发环境\h28\hSummaryofAndroidversions

\hAndroid版本总结\h28\hInstallingAndroidSDKandsettingupanAndroidVirtualDevice

\h安装AndroidSDK并设置Android虚拟设备\h31\hCreatingAVDinanolderversionofSDK

\h在旧版本的SDK中创建AVD\h31\hCreatingAVDinthelatestversionofSDK

\h在最新版本的SDK中创建AVD\h33\hTestingthegoldfishemulator

\h测试金鱼模拟器\h34\hTestingranchuemulator

\h测试ranchu模拟器\h37\hTheAOSPbuildenvironmentandtheAndroidemulatorbuild

\hAOSP构建环境和Android模拟器构建\h39\hTheAOSPbuildenvironment

\hAOSP构建环境\h39\hInstallingtherequiredpackages

\h安装所需的包\h39\hInstallingOpenJDK7and8

\h安装OpenJDK7和8\h39\hDownloadingtheAOSPsource

\h下载AOSP源代码\h41\hInstallingrepo

\h安装仓库\h41\hInitializingarepoclientanddownloadingtheAOSPsourcetree

\h初始化repo客户端并下载AOSP源代码树\h41\hBuildingAOSPAndroidemulatorimages

\h构建AOSPAndroid模拟器镜像\h42\hTestingAOSPimages

\h测试AOSP图像\h45\hCreatingyourownrepositorymirror

\h创建您自己的存储库镜像\h47\hRepoandmanifest

\h回购和清单\h48\hUsingalocalmirrorforAOSP

\h使用AOSP本地镜像\h50\hCreatingyourownmirrorofGitHub

\h创建您自己的GitHub镜像\h52\hFetchingGitrepositoriesoutsideGitHub

\h获取GitHub外部的Git存储库\h54\hCreatingyourownmanifestforclientdownload

\h创建您自己的清单以供客户端下载\h57\hSummary

\h概括\h60\hChapter3:DiscoveringKernel,HAL,andVirtualHardware

\h第3章：发现内核、HAL和虚拟硬件\h61\hWhatisinsidetheAOSP?

\hAOSP里面有什么？\h62\hAndroidemulatorHAL

\hAndroid模拟器HAL\h63\hCallingsequence

\h调用顺序\h65\hGoldfishlightsHAL

\h金鱼灯HAL\h67\hThesystemserviceandhardwaremanager

\h系统服务和硬件管理器\h69\hAndroidemulatorkernelandhardware

\hAndroid模拟器内核和硬件\h75\hAndroidemulatorhardware

\hAndroid模拟器硬件\h77\hGoldfishplatformbus

\h金鱼站台巴士\h77\hQEMUpipedevice

\hQEMU管道设备\h78\hGoldfishaudiodevice

\h金鱼音频设备\h79\hGoldfishserialport

\h金鱼串口\h80\hGoldfishkernel

\h金鱼仁\h81\hQEMUpipe

\hQEMU管道\h82\hSummary

\h概括\h84\hChapter4:CustomizingtheAndroidEmulator

\h第4章：自定义Android模拟器\h85\hWhycustomizetheAndroidemulator

\h为什么要定制Android模拟器\h85\hUnderstandingbuildlayers

\h了解构建层\h86\hBuildvariants

\h构建变体\h88\hCreatinganewx86emudevice

\h创建新的x86emu设备\h89\hCheckingoutfromtheAOSP

\h从AOSP签出\h89\hCheckingoutfromalocalmirror

\h从本地镜像查看\h90\hCreatingx86emudevice

\h创建x86emu设备\h93\hAndroidProducts.mk

\hAndroid产品.mk\h94\hBoardConfig.mk\h97\hdevice.mk

\h设备.mk\h99\hBuildingandtestingx86emu

\h构建和测试x86emu\h101\hBuildingx86emu

\h构建x86emu\h101\hTestingx86emu

\h测试x86emu\h105[ii]

[二]\hIntegratingwithEclipse

\h与Eclipse集成\h106\hSummary

\h概括\h111\hChapter5:EnablingtheARMTranslatorandIntroducingNativeBridge\h113

\h第5章：启用ARM转换器并介绍NativeBridge113\hIntroducingNativeBridge

\hNativeBridge简介\h113\hSettingupNativeBridgeaspartoftheARTinitialization

\h将NativeBridge设置为ART初始化的一部分\h116\hPre-initializingNativeBridge

\h预初始化NativeBridge\h123\hInitializingNativeBridge

\h初始化本机桥\h127\hLoadinganativelibrary

\h加载本地库\h130\hIntegratingHoudinitothex86emudevice

\h将Houdini集成到x86emu设备\h134\hChangingtheconfigurationofthex86emubuild

\h更改x86emu构建的配置\h134\hExtendingthex86emudevice

\h扩展x86emu设备\h136\hChangestoBoardConfig.mk

\hBoardConfig.mk的更改\h137\hChangestox86emu_x86.mk

\h对x86emu_x86.mk的更改\h138\hChangestodevice.mk

\h对device.mk的更改\h138\hUsingtheAndroid-x86implementation

\h使用Android-x86实现\h139\hAnalyzinglibnb.so

\h分析libnb.so\h140\hUsingbinfmt_misc

\h使用binfmt_misc\h143\hBuildingandtesting

\h构建和测试\h146\hTestingthecommand-lineapplication

\h测试命令行应用程序\h147\hTestingtheAndroidJNIapplication

\h测试AndroidJNI应用程序\h147\hSummary

\h概括\h150\hChapter6:DebuggingtheBootUpProcessUsingaCustomized

\h第6章：使用自定义调试启动过程\hramdisk

\h内存盘\h151\hAnalyzingtheAndroidstartupprocess

\hAndroid启动流程分析\h152\hBootloaderandthekernel

\h引导加载程序和内核\h152\hAnalyzingtheinitprocessandramdisk

\h分析init进程和ramdisk\h153\hActions

\h行动\h155\hServices

\h服务\h156\hDevice-specificactionsandservices

\h设备特定的操作和服务\h156\hSourcecodeandmanifestchanges

\h源代码和清单更改\h158\hTheAndroid-x86startupprocess

\hAndroid-x86启动流程\h160\hThefirst-stagebootusinginitrd.img

\h使用initrd.img进行第一阶段启动\h160\hInsideinitrd.img

\hinitrd.img内部\h161\hInsideinstall.img

\h里面安装.img\h166\hBuildingx86emuwithinitrd.img

\h使用initrd.img构建x86emu\h168\hCreatingafilesystemimage

\h创建文件系统映像\h170\hKernelchanges

\h内核变化\h173\hBootingadiskimageontheAndroidemulator

\h在Android模拟器上启动磁盘映像\h174\hSummary

\h概括\h179\hChapter7:EnablingWi-FiontheAndroidEmulator

\h第7章：在Android模拟器上启用Wi-Fi\h180[iii]

[三]\hWi-FionAndroid

\hAndroid上的Wi-Fi\h180\hTheWi-Fiarchitecture

\hWi-Fi架构\h181\hQEMUnetworkingandwpa_supplicantinAndroid

\hAndroid中的QEMU网络和wpa_supplicant\h190\hAddingWi-Fitotheemulator

\h将Wi-Fi添加到模拟器\h191\hEnablingwpa_supplicantinBoardConfig.mk

\h在BoardConfig.mk中启用wpa_supplicant\h191\hProvidingaproperwpa_supplicantconfiguration

\h提供正确的wpa_supplicant配置\h192\hCreatingservicesininitscripts

\h在初始化脚本中创建服务\h194\hInitializingnetworkinterfaceeth1

\h初始化网络接口eth1\h194\hStartingupwpa_supplicant

\h启动wpa_supplicant\h195\hBuildingthesourcecode

\h构建源代码\h196\hGettingthesourcecode

\h获取源代码\h196\hEnablingbootwithinitrd.img

\h使用initrd.img启用启动\h198\hTestingWi-Fionanemulator

\h在模拟器上测试Wi-Fi\h201\hBootinganAndroidemulatorusinginitrd.img

\h使用initrd.img启动Android模拟器\h201\hBootinganAndroidemulatorusingramdisk.img

\h使用ramdisk.img启动Android模拟器\h203\hDebuggingWi-Fistartupprocesses

\h调试Wi-Fi启动进程\h203\hSummary

\h概括\h206\hChapter8:CreatingYourOwnDeviceonVirtualBox

\h第8章：在VirtualBox上创建您自己的设备\h207\hHALofx86vbox

\hx86vbox的HAL\h208\hThemanifestforx86vbox

\hx86vbox的清单\h210\hCreatinganewx86vboxdevice

\h创建新的x86vbox设备\h214\hProductdefinitionMakefileofx86vbox

\hx86vbox的产品定义Makefile\h214\hBoardconfigurationofx86vbox

\hx86vbox的板卡配置\h215\hCommonx86devices

\h常见的x86设备\h216\hGettingthesourcecodeandbuildingthex86vboxdevice

\h获取源代码并构建x86vbox设备\h220\hBootupprocessanddeviceinitialization

\h启动过程和设备初始化\h220\hDeviceinitializationbeforeAndroidstart-up

\hAndroid启动前的设备初始化\h221\hHALinitializationduringtheAndroidstart-up

\hAndroid启动期间HAL初始化\h228\hSummary

\h概括\h232\hChapter9:BootingUpx86vboxUsingPXE/NFS

\h第9章：使用PXE/NFS启动x86vbox\h233\hSettingupaPXEbootenvironment

\h设置PXE启动环境\h234\hPreparingPXEBootROM

\h准备PXE引导ROM\h235\hDownloadingandbuildingtheLANBootROM

\h下载并构建LANBootROM\h236\hFixinguptheROMimage

\h修复ROM映像\h236\hConfiguringthevirtualmachinetousetheLANBootROM

\h配置虚拟机以使用LANBootROM\h237\hSettingupthePXEbootenvironment

\h设置PXE启动环境\h239\hConfiguringandtestingthePXEboot

\h配置和测试PXE启动\h239\hSettingupthevirtualmachine

\h设置虚拟机\h240\hUsingVirtualBoxinternalPXEbootingwithNAT

\h使用VirtualBox内部PXE启动和NAT\h242[iv]

[四]\hConfiguringpxelinux.cfg

\h配置pxelinux.cfg\h243\hpxelinux.cfg/default

\hpxelinux.cfg/默认\h244\hSettingupaserialportfordebugging

\h设置串行端口以进行调试\h246\hNFSfilesystem

\hNFS文件系统\h248\hPreparingthekernel

\h准备内核\h249\hSettinguptheNFSserver

\h设置NFS服务器\h252\hConfiguringthePXEbootmenu

\h配置PXE启动菜单\h252\hBootingtoNFSinstallation

\h引导至NFS安装\h253\hBootingfromaharddisk

\h从硬盘启动\h255\hBootingtorecovery

\h启动至恢复\h255\hSummary

\h概括\h258\hChapter10:EnablingGraphics

\h第10章：启用图形\h259\hIntroductiontotheAndroidgraphicsarchitecture

\hAndroid图形架构简介\h260\hDelvingintographicsHAL

\h深入研究图形HAL\h262\hLoadingtheGrallocmodule

\h加载Gralloc模块\h262\hInitializingGPU

\h初始化GPU\h269\hInitializingframebuffer

\h初始化帧缓冲区\h271\hAllocatingandreleasingthegraphicbuffer

\h分配和释放图形缓冲区\h280\hAllocatingfromframebuffer

\h从帧缓冲区分配\h285\hAllocatingfromsystemmemory

\h从系统内存分配\h287\hReleasinggraphicbuffers

\h释放图形缓冲区\h289\hRenderingframebuffer

\h渲染帧缓冲区\h291\hGraphicsHALoftheAndroidemulator

\hAndroid模拟器的图形HAL\h294\hOverviewofhardwareGLESemulation

\h硬件GLES仿真概述\h295\hInitializingGPU0andFB0inGLESemulation

\h在GLES仿真中初始化GPU0和FB0\h299\hGPU0deviceimplementation

\hGPU0设备实现\h302\hFB0deviceimplementation

\hFB0设备实现\h307\hSummary

\h概括\h308\hChapter11:EnablingVirtualBox-SpecificHardwareInterfaces

\h第11章：启用VirtualBox特定的硬件接口\h309\hOpenGLESandgraphicshardwareinitialization

\hOpenGLES和图形硬件初始化\h309\hLoadingOpenGLESlibraries

\h加载OpenGLES库\h310\hAnalyzingtheloadingprocess

\h分析加载过程\h313\hLoadingthedriver

\h加载驱动程序\h318\hCreatingtherenderingengine

\h创建渲染引擎\h320\hTheuvesafbframebufferdriver

\huvesafb帧缓冲区驱动程序\h322\hWhatisuvesafb?

\h什么是uvesafb?\h322\hTestingtheuvesafbframebufferdriver

\h测试uvesafb帧缓冲区驱动程序\h322\hInitializinguvesafbinx86vbox

\h在x86vbox中初始化uvesafb\h328\hIntegratingVirtualBoxGuestAdditions

\h集成VirtualBox来宾添加\h331\hBuildingVirtualBoxGuestAdditions

\h构建VirtualBox来宾添加\h333[v]

[五]\hIntegratingvboxsf

\h集成vboxsf\h334\hIntegratingvboxvideo

\h集成vboxvideo\h337\hBuildingandtestingimageswithVirtualBoxGuestAdditions

\h使用VirtualBoxGuestAdditions构建和测试映像\h339\hSummary

\h概括\h339\hChapter12:IntroducingRecovery

\h第12章：恢复介绍\h340\hRecoveryintroduction

\h恢复介绍\h340\hAndroiddevicepartitions

\hAndroid设备分区\h341\hAnalyzingrecovery

\h分析恢复情况\h343\hBCB\h344\hCachepartition

\h缓存分区\h347\hMainflowofrecovery

\h恢复主要流程\h348\hRetrievingargumentsfromBCBandcachefiles

\h从BCB和缓存文件中检索参数\h352\hFactorydatareset

\h恢复出厂数据\h356\hOTAupdate

\hOTA更新\h358\hBuildingrecoveryforx86vbox

\h为x86vbox构建恢复\h364\hBuildingconfiguration

\h建筑配置\h364\hChangestox86vbox

\hx86vbox的更改\h365\hChangestorecovery

\h恢复的变化\h368\hChangestonewinstaller

\h新安装程序的更改\h369\hTestingrecovery

\h测试恢复情况\h371\hSummary

\h概括\h371\hChapter13:CreatingOTAPackages

\h第13章：创建OTA包\h372\hWhatisinsideanOTApackage

\hOTA包里面有什么\h372\hUpdater

\h更新程序\h375\hTheupdaterscript

\h更新程序脚本\h380\hEdifyfunctions

\h启迪功能\h380\hBuilt-infunctions

\h内置功能\h380\hInstallationfunctions

\h安装功能\h381\hBlockimagefunctions

\h块图像功能\h385\hDeviceextensions

\h设备扩展\h385\hPreparinganOTApackageforx86vbox

\h为x86vbox准备OTA包\h386\hRemovingdependencieson/system

\h删除对/system的依赖\h388\hHardwareinitializationinrecovery

\h恢复时硬件初始化\h389\hMinimumexecutionenvironmentinrecovery

\h恢复时的最低执行环境\h391\hBuildingandtesting

\h构建和测试\h394\hSummary

\h概括\h397\hChapter14:CustomizingandDebuggingRecovery

\h第14章：定制和调试恢复\h398\hDebuggingandtestingnativeAndroidapplications

\h调试和测试原生Android应用程序\h399[vi]

[六]\hDebuggingwithGDB

\h使用GDB进行调试\h400\hIntegrationwithEclipse

\h与Eclipse集成\h403\hExtendingrecoveryandtheupdater

\h扩展恢复和更新程序\h409\hExtendingrecovery

\h延长恢复时间\h409\hExtendingtheupdater

\h扩展更新程序\h416\hExtendingthePythonmodule

\h扩展Python模块\h424\hBuildingandtestingtheextendedrecoveryandupdater

\h构建和测试扩展恢复和更新程序\h425\hSupportingthethird-partyrecoverypackages

\h支持第三方恢复包\h433\hXposedrecoverypackage

\hXpose恢复包\h433\hOpeningGApps

\h打开GApp\h437\hSummary

\h概括\h441\hIndex

\h指数\h442[vii]

[七]Preface

前言Androidisthemostpopularmobileoperatingsystemintheworld.Since2013,Androidhasaround80%marketshareworldwide,whilethesecondlargestmobileoperatingsystem,iOS,haslessthan20%marketshare.

Android是世界上最流行的移动操作系统。自2013年以来，Android在全球占据约80%的市场份额，而第二大移动操作系统iOS的市场份额不足20%。

DuetothepopularityofAndroid,therearemanybooksaboutAndroidprogramminginthemarket.MostofthemaretargetedatAndroidapplicationdevelopers,whicharethelargestcommunityintheworldofAndroiddevelopment.

由于Android的普及，市场上有很多关于Android编程的书籍。其中大多数针对Android应用程序开发人员，这是Android开发领域最大的社区。ThereisalsoanothergroupofpeopleworkingonthelayerbeneaththeAndroidframework.ManypeoplecallthemAndroidsystemdevelopers.

还有另外一组人在做Android框架下面的层。很多人称他们为Android系统开发人员。

ComparingtoAndroidapplicationdevelopers,AndroidsystemdevelopersusetheC/C++languages,orevenassemblylanguage,todevelopsystemservicesordevicedrivers.

与Android应用程序开发人员相比，Android系统开发人员使用C/C++语言，甚至汇编语言来开发系统服务或设备驱动程序。

ThescopeandthedefinitionofAndroidsystemdevelopmentismuchmorevaguethancomparingtoAndroidapplicationdevelopment.

Android系统开发的范围和定义比Android应用程序开发要模糊得多。

ForAndroidapplicationdevelopment,thedevelopmentenvironmentandtoolsareveryclear:theAndroidSDKandAndroidStudiofromGoogleshouldbeusedandtheprogramminglanguageisJava.

对于Android应用程序开发，开发环境和工具非常明确：需要使用Google的AndroidSDK和AndroidStudio，编程语言是Java。ForAndroidsystemdevelopment,wemayusetheAndroidNDKtodevelopAndroidsystemservicesornativeapplications.ManypeoplerefertodevelopmentbasedontheAndroidOpenSourceProject(AOSP)asAndroid