Android envsetup 环境设置

Androidenvsetup环境设置

Android源码根目录	androidroot

为了更好、更快、更便捷的学习或开发Android系统，我有必要先熟练掌握跟源代码相关的工具，它们可以在任意目录下编译系统，编译当前目录下所有模块，编译指定目录下所有模块，快速返回androidroot目录，在多种或一种文件中查找指定字符串。要想使用这些工具，我首先需要将androidenvsetup脚本加载到工作环境中。具体加载方法如下：
1、envsetup.sh脚本文件在androidroot/build目录下
eg:
drjiang@drjiangISS:~/work/android/code/android4.0/build$ls -l envsetup.sh
-rwxrwxr-x1 drjiang drjiang 28590 11月15
2011 envsetup.sh

2.加载方法
执行命令：source./build/envsetup.sh或.build/envsetup.sh
eg:
drjiang@drjiangISS:~/work/android/code/android4.0$source ./build/envsetup.sh
includingdevice/samsung/maguro/vendorsetup.sh
includingdevice/samsung/tuna/vendorsetup.sh
includingdevice/ti/panda/vendorsetup.sh
includingsdk/bash_completion/adb.bash
3.通过help命令，我就可以看到有很多工具。
drjiang@drjiangISS:~/work/android/code/android4.0$help
Invoke". build/envsetup.sh" from your shell to add the followingfunctions to your environment:
-croot: Changes directory to the top of the tree.
-m: Makes from the top of the tree.
-mm: Builds all of the modules in the current directory.
-mmm: Builds all of the modules in the supplied directories.
-cgrep: Greps on all local C/C++ files.
-jgrep: Greps on all local Java files.
-resgrep: Greps on all local res/*.xml files.
-godir: Go to the directory containing a file.

Lookat the source to view more functions. The complete list is:
addcompletionsadd_lunch_combo cgrep check_product check_variant choosecombochooseproduct choosetype
choosevariant cproj croot findmakefilegdbclient get_abs_build_var getbugreports get_build_var getprebuiltgettop godir help isviewserverstarted jgrep key_back key_homekey_menu lunch _lunch m mm mmm pid printconfig print_lunch_menuresgrep runhat runtest set_java_home
setpaths set_sequence_numberset_stuff_for_environment settitle smoketest startviewserverstopviewserver systemstack tapas tracedmdump

4.我常用到的工具大概分类（编译相关和字符串查找）
1、编译
1、m

相当于在当前androidroot目录下执行make命令。可以在目录树任意目录下执行。

eg:

drjiang@drjiangISS:~/work/android/code/android4.0/cts$m

============================================

PLATFORM_VERSION_CODENAME=REL

PLATFORM_VERSION=4.0.1

TARGET_PRODUCT=full

TARGET_BUILD_VARIANT=eng

TARGET_BUILD_TYPE=release

TARGET_BUILD_APPS=

TARGET_ARCH=arm

TARGET_ARCH_VARIANT=armv7-a

HOST_ARCH=x86

HOST_OS=linux

HOST_BUILD_TYPE=release

BUILD_ID=ITL41D

============================================

2、mm

编译当前目录下所有模块

eg:

drjiang@drj
14642
iangISS:~/work/android/code/android4.0/cts$mm

============================================

PLATFORM_VERSION_CODENAME=REL

PLATFORM_VERSION=4.0.1

TARGET_PRODUCT=full

TARGET_BUILD_VARIANT=eng

TARGET_BUILD_TYPE=release

TARGET_BUILD_APPS=

TARGET_ARCH=arm

TARGET_ARCH_VARIANT=armv7-a

HOST_ARCH=x86

HOST_OS=linux

HOST_BUILD_TYPE=release

BUILD_ID=ITL41D

============================================

3、mmm

编译指定的目录下所有模块,必须使用相对目录。

eg:

drjiang@drjiangISS:~/work/android/code/android4.0/packages/apps/C
alendar/src/com$ mmm ../../../Camera

============================================

PLATFORM_VERSION_CODENAME=REL

PLATFORM_VERSION=4.0.1

TARGET_PRODUCT=full

TARGET_BUILD_VARIANT=eng

TARGET_BUILD_TYPE=release

TARGET_BUILD_APPS=

TARGET_ARCH=arm

TARGET_ARCH_VARIANT=armv7-a

HOST_ARCH=x86

HOST_OS=linux

HOST_BUILD_TYPE=release

BUILD_ID=ITL41D

============================================

4、croot

目录树内任意目录，执行该命令，可以返回androidroot目录。

eg:

drjiang@drjiangISS:~/work/android/code/android4.0/out/target$croot

drjiang@drjiangISS:~/work/android/code/android4.0$

5、findmakefile

查找当前或最接近自己的祖辈路径上的Android.mk，返回Android.mk的路径。

eg：

drjiang@drjiangISS:~/work/android/code/android4.0/packages/apps/Calendar/src/com$findmakefile

/home/drjiang/work/android/code/android4.0/packages/apps/Calendar/Android.mk

2、在文件查找字符串

1、cgrep

在当前目录及其子目录下的C/C++文件中，查找指定的字符串。

eg:

drjiang@drjiangISS:~/work/android/code/android4.0/frameworks$cgrep stdlib

./base/drm/libdrmframework/plugins/forward-lock/internal-format/common/FwdLockGlue.c:21:#include<stdlib.h>

./base/drm/libdrmframework/plugins/forward-lock/internal-format/decoder/FwdLockFile.c:22:#include<stdlib.h>

./base/drm/common/ReadWriteUtils.cpp:27:#include<stdlib.h>

./base/libs/ui/GraphicLog.cpp:18:#include<stdlib.h>

./base/libs/ui/FramebufferNativeWindow.cpp:20:#include<stdlib.h>

./base/libs/ui/VirtualKeyMap.cpp:19:#include<stdlib.h>

./base/libs/ui/KeyLayoutMap.cpp:19:#include<stdlib.h>

./base/libs/ui/Input.cpp:23:#include<stdlib.h>

./base/libs/ui/Keyboard.cpp:19:#include<stdlib.h>

./base/libs/ui/KeyCharacterMap.cpp:19:#include<stdlib.h>

2、jgrep

在当前目录及其子目录下的java文件中，查找指定的字符串。

eg:

drjiang@drjiangISS:~/work/android/code/android4.0/frameworks/base/core/java/android/app$jgrep android.view.View

./Dialog.java:42:importandroid.view.View;

./Dialog.java:43:importandroid.view.View.OnCreateContextMenuListener;

./Dialog.java:44:importandroid.view.ViewGroup;

./Dialog.java:45:importandroid.view.ViewGroup.LayoutParams;

./ActionBar.java:24:importandroid.view.View;

./ActionBar.java:25:importandroid.view.ViewDebug;

./ActionBar.java:26:importandroid.view.ViewGroup;

./ActionBar.java:27:importandroid.view.ViewGroup.MarginLayoutParams;

./TimePickerDialog.java:26:importandroid.view.View;

3、resgrep

在当前目录及其子目录下的res/*.xml文件中，查找指定的字符串。

eg：

drjiang@drjiangISS:~/work/android/code/android4.0/packages$resgrep xmlns:android

./wallpapers/Basic/res/values-bg/strings.xml:20:<resourcesxmlns:android="http://schemas.android.com/apk/res/android"

./wallpapers/Basic/res/values-rm/strings.xml:20:<resourcesxmlns:android="http://schemas.android.com/apk/res/android"

./wallpapers/Basic/res/xml/grass.xml:23:<wallpaperxmlns:android="http://schemas.android.com/apk/res/android"

./wallpapers/Basic/res/xml/polar_clock_prefs.xml:17:<PreferenceScreenxmlns:android="http://schemas.android.com/apk/res/android"

./wallpapers/Basic/res/xml/galaxy.xml:23:<wallpaperxmln

4、mgrep

在当前目录及其子目录下的res/*.xml文件中，查找指定的字符串。

eg：

drjiang@drjiangISS:~/work/android/code/android4.0/packages$mgrep LOCAL_PATH

./wallpapers/Basic/Android.mk:17:LOCAL_PATH:= $(call my-dir)

./wallpapers/PhaseBeam/Android.mk:17:LOCAL_PATH:= $(call my-dir)

./wallpapers/HoloSpiral/Android.mk:17:LOCAL_PATH:= $(call my-dir)

./wallpapers/MagicSmoke/Android.mk:17:LOCAL_PATH:= $(call my-dir)

./wallpapers/LivePicker/Android.mk:17:LOCAL_PATH:= $(call my-dir)

./wallpapers/MusicVisualization/Android.mk:17:LOCAL_PATH:= $(call my-dir)

./wallpapers/Galaxy4/Android.mk:17:LOCAL_PATH:= $(call my-dir)

./wallpapers/NoiseField/Android.mk:17:LOCAL_PATH:= $(call my-dir)

./providers/TelephonyProvider/Android.mk:1:LOCAL_PATH:=$(call my-dir)

./providers/DownloadProvider/ui/Android.mk:1:LOCAL_PATH:=$(call my-dir)

./providers/DownloadProvider/tests/permission/Android.mk:1:

5、sgrep

查找当前目录及子目录中所有.c，.h，.cpp，.S，.java，.mk，.xml，.sh文件

eg:

drjiang@drjiangISS:~/work/android/code/android4.0/packages/apps/Calendar/src/com$sgrep Calendar

./android/calendar/EventInfoFragment.java:19:importstatic android.provider.CalendarContract.EXTRA_EVENT_BEGIN_TIME;

./android/calendar/EventInfoFragment.java:20:importstatic android.provider.CalendarContract.EXTRA_EVENT_END_TIME;

./android/calendar/EventInfoFragment.java:21:importstatic com.android.calendar.CalendarController.EVENT_EDIT_ON_LAUNCH;

./android/calendar/EventInfoFragment.java:23:importcom.android.calendar.CalendarController.EventInfo;

./android/calendar/EventInfoFragment.java:24:importcom.android.calendar.CalendarController.EventType;

./android/calendar/EventInfoFragment.java:25:importcom.android.calendar.CalendarEventModel.Attendee;

./android/calendar/EventInfoFragment.java:26:importcom.android.calendar.CalendarEventModel.ReminderEntry;

./android/calendar/EventInfoFragment.java:53:importandroid.provider.CalendarContract;

./android/calendar/EventInfoFragment.java:54:importandroid.provider.CalendarContract.Attendees;

./android/calendar/EventInfoFragment.java:55:importandroid.provider.CalendarContract.Calendars;

./android/calendar/EventInfoFragment.java:56:importandroid.provider.CalendarContract.Events;

./android/calendar/EventInfoFragment.java:57:importandroid.provider.CalendarContract.Reminders;

./android/calendar/EventInfoFragment.java:115: CalendarController.EventHandler, OnClickListener {

./android/calendar/EventInfoFragment.java:157: Calendars.CALENDAR_ACCESS_LEVEL, // 10

./android/calendar/EventInfoFragment.java:158: Calendars.CALENDAR_COLOR, // 11

./android/calendar/EventInfoFragment.java:162: Calendars.MAX_REMINDERS, //15

./android/calendar/EventInfoFragment.java:163: Calendars.ALLOWED_REMINDERS, //