Initial commit

.gitignore

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+cups-2.2.4-source.tar.gz
+freetype-2.6.2.tar.bz2
+cups-2.2.4
+freetype-2.6.2
+freetype-2.6.2-x86
+jdk-9.0.4
+jdk1.8.0_*
+openjdk
+android-ndk-r10e
+android-ndk-r10e-linux-x86_64.zip
+jre.tar.xz
+jreout

README.txt

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+Based on http://openjdk.java.net/projects/mobile/android.html
+
+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)
+
+Run in this directory:
+
+./extractndk.sh
+./getlibs.sh
+./maketoolchain.sh
+./clonejdk.sh
+./buildlibs.sh
+./buildjdk.sh
+./removejdkdebuginfo.sh
+./tarjdk.sh
+
+For x86:
+./maketoolchain_x86.sh
+./reextractlibs_x86.sh
+./buildlibs_x86.sh
+./buildjdk_x86.sh

buildjdk.sh

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+#!/bin/bash
+set -e
+. setdevkitpath.sh
+export FREETYPE_DIR=`pwd`/freetype-2.6.2/build_android-arm
+export CUPS_DIR=`pwd`/cups-2.2.4
+
+# My system's JDK is too old (7.0), so we add an Oracle boot JDK.
+export PATH=`pwd`/jdk1.8.0_162/bin:$PATH
+
+cd openjdk
+rm -rf build
+bash ./configure \
+	--enable-option-checking=fatal \
+	--build=x86_64-unknown-linux-gnu \
+	--host=arm-linux-androideabi \
+	--target=arm-linux-androideabi \
+	--disable-warnings-as-errors \
+	--enable-headless-only \
+	--with-jdk-variant=normal \
+	--with-cups-include=$CUPS_DIR \
+	--with-devkit=$ANDROID_DEVKIT \
+	--with-debug-level=release \
+	--with-freetype-lib=$FREETYPE_DIR/lib \
+	--with-freetype-include=$FREETYPE_DIR/include/freetype2
+
+cd build/android-arm-normal-server-release
+make JOBS=4 images

buildjdk_x86.sh

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+#!/bin/bash
+set -e
+. setdevkitpath_x86.sh
+export FREETYPE_DIR=`pwd`/freetype-2.6.2-x86/build_android-i686
+export CUPS_DIR=`pwd`/cups-2.2.4
+
+# My system's JDK is too old (7.0), so we add an Oracle boot JDK.
+export PATH=`pwd`/jdk1.8.0_162/bin:$PATH
+
+cd openjdk
+#rm -rf build
+bash ./configure \
+	--enable-option-checking=fatal \
+	--build=x86_64-unknown-linux-gnu \
+	--host=i686-linux-android \
+	--target=i686-linux-android \
+	--disable-warnings-as-errors \
+	--enable-headless-only \
+	--with-jdk-variant=normal \
+	--with-jvm-variants=server \
+	--with-cups-include=$CUPS_DIR \
+	--with-devkit=$ANDROID_DEVKIT \
+	--with-debug-level=release \
+	--with-freetype-lib=$FREETYPE_DIR/lib \
+	--with-freetype-include=$FREETYPE_DIR/include/freetype2
+
+cd build/android-x86-normal-server-release
+make JOBS=4 images

buildlibs.sh

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+#!/bin/bash
+set -e
+. setdevkitpath.sh
+export PATH=$ANDROID_DEVKIT/bin:$PATH
+
+echo "Building Freetype"
+
+cd freetype-2.6.2
+./configure \
+	--host=arm-linux-androideabi \
+	--prefix=`pwd`/build_android-arm \
+	--without-zlib \
+	--with-png=no \
+	--with-harfbuzz=no
+
+make -j4
+make install

buildlibs_x86.sh

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+#!/bin/bash
+set -e
+. setdevkitpath_x86.sh
+export PATH=$ANDROID_DEVKIT/bin:$PATH
+
+echo "Building Freetype"
+
+cd freetype-2.6.2-x86
+./configure \
+	--host=i686-linux-android \
+	--prefix=`pwd`/build_android-i686 \
+	--without-zlib \
+	--with-png=no \
+	--with-harfbuzz=no
+
+make -j4
+make install

clonejdk.sh

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+#!/bin/bash
+set -e
+hg clone http://hg.openjdk.java.net/mobile/dev openjdk
+cd openjdk
+bash ./get_source.sh

devkit.info.arm

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+DEVKIT_NAME="Android ARM"
+DEVKIT_TOOLCHAIN_PATH="$DEVKIT_ROOT/arm-linux-androideabi/bin"
+DEVKIT_SYSROOT="$DEVKIT_ROOT/sysroot"

devkit.info.x86

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+DEVKIT_NAME="Android X86"
+DEVKIT_TOOLCHAIN_PATH="$DEVKIT_ROOT/i686-linux-android/bin"
+DEVKIT_SYSROOT="$DEVKIT_ROOT/sysroot"

extractndk.sh

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+#!/bin/sh
+unzip android-ndk-r10e-linux-x86_64.zip

getlibs.sh

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+#!/bin/sh
+# https://github.com/termux/termux-packages/blob/master/disabled-packages/openjdk-9-jre-headless/build.sh
+set -e
+wget https://download.savannah.gnu.org/releases/freetype/freetype-2.6.2.tar.bz2
+tar xf freetype-2.6.2.tar.bz2
+wget https://github.com/apple/cups/releases/download/v2.2.4/cups-2.2.4-source.tar.gz
+tar xf cups-2.2.4-source.tar.gz

maketoolchain.sh

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+#!/bin/bash
+set -e
+android-ndk-r10e/build/tools/make-standalone-toolchain.sh \
+	--arch=arm \
+	--platform=android-21 \
+	--install-dir=`pwd`/android-ndk-r10e/generated-toolchains/android-arm-toolchain
+cp devkit.info.arm android-ndk-r10e/generated-toolchains/android-arm-toolchain/

maketoolchain_x86.sh

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+#!/bin/bash
+set -e
+android-ndk-r10e/build/tools/make-standalone-toolchain.sh \
+	--arch=x86 \
+	--platform=android-21 \
+	--install-dir=`pwd`/android-ndk-r10e/generated-toolchains/android-x86-toolchain
+cp devkit.info.x86 android-ndk-r10e/generated-toolchains/android-x86-toolchain/

reextract_x86.sh

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+#!/bin/bash
+set -e
+mkdir x86tmp || true
+cd x86tmp
+tar xf ../freetype-2.6.2.tar.bz2
+mv freetype-2.6.2 ../freetype-2.6.2-x86
+cd ..
+rmdir x86tmp

removejdkdebuginfo.sh

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+#!/bin/bash
+set -e
+rm -rf jreout || true
+cp -r openjdk/build/android-arm-normal-server-release/images/jre jreout
+find jreout -name "*.diz" | xargs -- rm

setdevkitpath.sh

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+export ANDROID_DEVKIT=`pwd`/android-ndk-r10e/generated-toolchains/android-arm-toolchain

setdevkitpath_x86.sh

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+export ANDROID_DEVKIT=`pwd`/android-ndk-r10e/generated-toolchains/android-x86-toolchain

tarjdk.sh

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+#!/bin/bash
+set -e
+cd jreout
+tar cJf ../jre.tar.xz .