android-openjdk-build-multiarch's Introduction

mobile-openjdk8-build-multiarch

Based on http://openjdk.java.net/projects/mobile/android.html

Building

Setup

Android

Download Android NDK r10e from https://developer.android.com/ndk/downloads/older_releases.html and place it in this directory (Can't automatically download because of EULA)
Warning: Do not attempt to build use newer or older NDK, it will lead to compilation errors.

iOS

You should get latest Xcode (tested with Xcode 12).

Platform and architecture specific environment variables

	Environment variables
Platform - Architecture	TARGET	TARGET_JDK
Android - armv8/aarch64	aarch64-linux-android	aarch64
Android - armv7/aarch32	arm-linux-androideabi	arm
Android - x86/i686	i686-linux-android	x86
Android - x86_64/amd64	x86_64-linux-android	x86_64
iOS/iPadOS - armv8/aarch64	aarch64-macos-ios	aarch64

Run in this directory:

export BUILD_IOS=1 # only when targeting iOS, default is 0 (target Android)

export BUILD_FREETYPE_VERSION=[2.6.2/.../2.10.4] # default: 2.10.4
export JDK_DEBUG_LEVEL=[release/fastdebug/debug] # default: release
export TARGET_JDK=[aarch64/aarch32/x86/x86_64] # need set
export TARGET=aarch64-linux-android
export JVM_VARIANTS=[client/server] # default: client (aarch32), server (other architectures)

# Setup NDK, run once (Android only)
./extractndk.sh
./maketoolchain.sh

# Get CUPS, Freetype and build Freetype
./getlibs.sh
./buildlibs.sh

# Clone JDK, run once
./clonejdk.sh

# Configure JDK and build, if no configuration is changed, run makejdkwithoutconfigure.sh instead
./buildjdk.sh

# Pack the built JDK
./removejdkdebuginfo.sh
./tarjdk.sh

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