README.md

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 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