[readme][script][docker] Remove support for RPi

Author: JakubVanek

README.md

@@ -1,10 +1,7 @@
 # OpenJDK for ev3dev-lang-java
-A custom build of OpenJDK 9 & 10 for LEGO Mindstorms compatible bricks supported by ev3dev:
+Custom build of OpenJDK providing Java support for ev3dev on the following devices:
 
-* EV3, featuring a ARM926EJ-S CPU
-* Raspberry Pi 1, featuring a ARM1176JZF-S CPU
-* Raspberry Pi 2, featuring a Cortex-A7 CPU
-* Raspberry Pi 3, featuring a Cortex-A53 CPU
+* LEGO Mindstorms EV3, featuring a ARM926EJ-S CPU
 
 Builds for older boards should work on newer boards, the performance might just be a bit lower.
 
@@ -44,8 +41,7 @@ The output consists of these parts:
 1. Install [Docker](https://docs.docker.com/engine/installation/) for your operating system.
 2. Build the jdk cross-compilation OS:
 ```sh
-sudo docker build -t ev3dev-lang-java:jdk-stretch -f system/Dockerfile.armel  system # ONLY FOR EV3
-sudo docker build -t ev3dev-lang-java:jdk-stretch -f system/Dockerfile.armhf  system # ONLY FOR RPI1. RPI2 & RPI3
+sudo docker build -t ev3dev-lang-java:jdk-stretch -f system/Dockerfile.armel system
 ```
 3. Build the jdk cross-compilation environment:
 ```sh
@@ -63,13 +59,11 @@ Please change the `$BUILD_DIRECTORY` to a valid path.
 ```
 export JDKVER=9         # OpenJDK 9
 export JDKVER=10        # OpenJDK 10
-export JDKVER=dev       # OpenJDK Master+dev (to-be OpenJDK 11 at the time of writing)
+export JDKVER=11        # OpenJDK 11
+export JDKVER=12        # OpenJDK 12
 export JDKVM=zero       # Use Zero interpreter
 export JDKVM=client     # Use ARM32 JIT
 export JDKPLATFORM=ev3  # Use EV3  build flags
-export JDKPLATFORM=rpi1 # Use RPi1 build flags
-export JDKPLATFORM=rpi2 # Use RPi2 build flags
-export JDKPLATFORM=rpi3 # Use RPi3 build flags
 ```
 6. Before we can start the build process, Boot JDK must be downloaded:
 ```

scripts/build.sh

@@ -42,7 +42,6 @@ fi
 # configure the build
 echo "[BUILD] Configuring Java for target '$JDKPLATFORM'"
 
-
 if [ "$JDKPLATFORM" == "ev3" ]; then
   bash ./configure --with-boot-jdk="$HOSTJDK" \
                    --openjdk-target=arm-linux-gnueabi \
@@ -61,28 +60,6 @@ if [ "$JDKPLATFORM" == "ev3" ]; then
                    NM="arm-linux-gnueabi-gcc-nm" \
                    BUILD_AR="gcc-ar" \
                    BUILD_NM="gcc-nm"
-
-# Raspberry Pis
-elif [ "$JDKPLATFORM" == "rpi1" ] ||
-     [ "$JDKPLATFORM" == "rpi2" ] ||
-     [ "$JDKPLATFORM" == "rpi3" ]; then
-  bash ./configure --with-boot-jdk="$HOSTJDK" \
-                   --openjdk-target=arm-linux-gnueabihf \
-                   --with-abi-profile="arm-$JDKPLATFORM" \
-                   --enable-headless-only \
-                   --with-freetype-lib=/usr/lib/arm-linux-gnueabihf \
-                   --with-freetype-include=/usr/include \
-                   --with-jvm-variants="$HOTSPOT_VARIANT" \
-                   --with-extra-cflags="-w -Wno-error" \
-                   --with-extra-cxxflags="-w -Wno-error" \
-                   --with-version-string="$JAVA_VERSION" \
-                   --without-softfloat \
-                   --with-cacerts-file="$CACERTFILE" \
-                   --with-debug-level=release \
-                   AR="arm-linux-gnueabihf-gcc-ar" \
-                   NM="arm-linux-gnueabihf-gcc-nm" \
-                   BUILD_AR="gcc-ar" \
-                   BUILD_NM="gcc-nm"
 fi
 
 # start the build

scripts/config.sh

@@ -135,26 +135,11 @@ fi
 if [ "$JDKPLATFORM" == "ev3" ]; then
   SFLT_NEEDED=true
 
-# Raspberry Pi 1
-elif [ "$JDKPLATFORM" == "rpi1" ]; then
-  SFLT_NEEDED=false
-
-# Raspberry Pi 2
-elif [ "$JDKPLATFORM" == "rpi2" ]; then
-  SFLT_NEEDED=false
-
-# Raspberry Pi 3
-elif [ "$JDKPLATFORM" == "rpi3" ]; then
-  SFLT_NEEDED=false
-
 # invalid or unset platform
 else
   echo "Error! Please specify JDK platform to compile via the JDKPLATFORM environment variable." >&2
   echo "Acceptable values:" >&2
   echo "JDKPLATFORM=ev3" >&2
-  echo "JDKPLATFORM=rpi1" >&2
-  echo "JDKPLATFORM=rpi2" >&2
-  echo "JDKPLATFORM=rpi3" >&2
   exit 1
 fi