Ports: Add OpenJDK port

Port of OpenJDK 17.0.2, zero VM only.

More work needed to get the full hotspot VM up and running :^)

Co-Authored-By: Andrew Kaster <akaster@serenityos.org>

Ports/OpenJDK/package.sh

@@ -0,0 +1,57 @@
+#!/usr/bin/env -S USE_CCACHE=false bash ../.port_include.sh
+
+port='OpenJDK'
+version='17.0.2'
+workdir="jdk17u-dev-jdk-${version}-ga"
+useconfigure='true'
+use_fresh_config_guess='true'
+config_guess_paths=("make/autoconf/build-aux/autoconf-config.guess")
+use_fresh_config_sub='true'
+config_sub_paths=("make/autoconf/build-aux/autoconf-config.sub")
+auth_type='sha256'
+files="https://github.com/openjdk/jdk17u-dev/archive/refs/tags/jdk-${version}-ga.tar.gz jdk-${version}-ga.tar.gz cb5b2a5d0916723d340f2c5bacd4607f8b8dc3a18dc8019fcfabf5306e2a4112"
+depends=("fontconfig" "libffi")
+
+configure() {
+    TOOLCHAIN_ARGS=()
+    WARNING_IGNORE_FLAGS='-Wno-error=switch -Wno-maybe-uninitialized'
+    if [ $SERENITY_TOOLCHAIN = 'Clang' ]; then
+        # We need the build CC and CXX to actually be clang when using clang to cross-compile
+        #    ... for some reason.
+        TOOLCHAIN_ARGS=("--with-toolchain-type=clang"
+                        "BUILD_CC=clang"
+                        "BUILD_CXX=clang++")
+        WARNING_IGNORE_FLAGS="${WARNING_IGNORE_FLAGS} -Wno-error=bitwise-instead-of-logical"
+    fi
+
+    # Note: To use ccache with OpenJDK, pass --enable-ccache
+    #     It rejects the ccache symlinks.
+
+    run bash configure \
+        AR=${AR} \
+        READELF=${READELF} \
+        STRIP=${STRIP} \
+        CXXFILT=${CXXFILT} \
+        BUILD_AR=${HOST_AR} \
+        BUILD_OBJCOPY=${HOST_OBJCOPY} \
+        BUILD_STRIP=${HOST_STRIP} \
+        --openjdk-target=${SERENITY_ARCH}-pc-serenity \
+        --with-sysroot=${SERENITY_INSTALL_ROOT} \
+        --with-jvm-variants=zero \
+        --enable-headless-only \
+        --with-debug-level=fastdebug \
+        --with-native-debug-symbols=internal \
+        --with-tools-dir=${SERENITY_TOOLCHAIN_BINDIR} \
+        --with-extra-cflags="${WARNING_IGNORE_FLAGS}" \
+        --with-extra-cxxflags="${WARNING_IGNORE_FLAGS}" \
+        "${TOOLCHAIN_ARGS[@]}"
+}
+
+build() {
+    run make java.base jdk.compiler java.logging
+}
+
+install() {
+    run mkdir -p ${SERENITY_INSTALL_ROOT}/usr/local/lib/jvm/
+    run sh -c "cp ./build/serenity-* ${SERENITY_INSTALL_ROOT}/usr/local/lib/jvm/ -rf"
+}