OS: Android - Build

Tampaknya sebaiknya menggunakan Ubuntu 11.10 max.

The Android build is routinely tested in house on recent versions of Ubuntu LTS (10.04), but most distributions should have the required build tools available. Reports of successes or failures on other distributions are welcome.

You will need a 64-bit version of Ubuntu. Ubuntu 10.04 is recommended. Building using a newer version of Ubuntu is currently only experimentally supported and is not guaranteed to work on branches other than master.

Instalasi Aplikasi Pendukung

sudo apt-get install git gnupg flex bison gperf build-essential \
 zip curl libc6-dev libncurses5-dev:i386 x11proto-core-dev \
 libx11-dev:i386 libreadline6-dev:i386 libgl1-mesa-glx:i386 \
 libgl1-mesa-dev g++-multilib mingw32 tofrodos \
 python-markdown libxml2-utils xsltproc zlib1g-dev:i386

Inisialisasi

Inisialisasi environment menggunakan script envsetup.sh

$ source build/envsetup.sh

atau

$ . build/envsetup.sh

Pilih Target

Pilih target yang akan di build dengan lunch. Konfigurasi dapat di sampaikan ke lunch menggunakan perintah, contoh,

$ lunch full-eng

Build lengkap untuk memulator, dengan semua debugging di enable.

Untuk device maguro gunakan

$ lunch full_maguro-eng

Akan keluar kira-kira

============================================
PLATFORM_VERSION_CODENAME=REL
PLATFORM_VERSION=4.3.2.1.000.000
TARGET_PRODUCT=full_maguro
TARGET_BUILD_VARIANT=eng
TARGET_BUILD_TYPE=release
TARGET_BUILD_APPS=
TARGET_ARCH=arm
TARGET_ARCH_VARIANT=armv7-a-neon
TARGET_CPU_VARIANT=cortex-a9
HOST_ARCH=x86
HOST_OS=linux
HOST_OS_EXTRA=Linux-3.8.0-19-generic-x86_64-with-Ubuntu-13.04-raring
HOST_BUILD_TYPE=release
BUILD_ID=OPENMASTER
OUT_DIR=out
============================================

Jika menjalankan lunch tanpa argumen, maka kita akan ditanya target yang akan dibuat apa.

Semua target menggunakan format BUILD-BUILDTYPE

Dimana BUILD adalah codename referring to the particular feature combination. Here's a partial list:

Build name 	Device 	Notes
full 	emulator 	fully configured with all languages, apps, input methods
full_maguro 	maguro 	full build running on Galaxy Nexus GSM/HSPA+ ("maguro")
full_panda 	panda 	full build running on PandaBoard ("panda")

and the BUILDTYPE is one of the following:

Buildtype 	Use
user 	limited access; suited for production
userdebug 	like "user" but with root access and debuggability; preferred for debugging
eng 	development configuration with additional debugging tools

For more information about building for and running on actual hardware, see Building for Devices.

Build

Build semua menggunakan make. GNU make dapat menangani task paralel dengan argumen -jN, dan biasanya jumlah task N adalah 1 s/d 2 kali dari hardware thread di komputer yang digunakan untuk build. Contoh sebuah mesin dengan processor dual Xeon E5520 (2 CPU, 4 core per CPU dan 2 thread per core), maka untuk build yang cepat dapat menggunakan antara make -j16 dan make -j32.

Untuk processor i5 4 core dapat menggunakan

$ make -j4

Run It!

Kita dapat menjalankan android yang kita buat di emulator atau flash ke device. Perlu di catat bahwa jika kita sudah menentukan target yang akan di tuju, maka kemungkinan besar tidak akan berjalan dengan baik kalau di pasang di target yang lain.

Flash a Device

To flash a device, you will need to use fastboot, which should be included in your path after a successful build. Place the device in fastboot mode either manually by holding the appropriate key combination at boot, or from the shell with

$ adb reboot bootloader

Once the device is in fastboot mode, run

$ fastboot flashall -w

The -w option wipes the /data partition on the device; this is useful for your first time flashing a particular device, but is otherwise unnecessary.

For more information about building for and running on actual hardware, see Building for Devices.

Referensi

• http://source.android.com/source/initializing.html
• http://askubuntu.com/questions/324320/how-does-one-build-android-kernel-from-sources-on-ubuntu-13-04