Reopen [NERVenv] - Support arm64 --> arm32 cross compilation.

.github/workflows/build_image.yml

@@ -23,6 +23,8 @@ jobs:
       packages: write
       # 
     steps:
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3.12.0
       - name: Checkout repository
         uses: actions/checkout@v4
       # Uses the `docker/login-action` action to log in to the Container registry registry using the account and password that will publish the packages. Once published, the packages are scoped to the account defined here.
@@ -46,5 +48,6 @@ jobs:
         with:
           context: ./dev/
           push: true
+          platforms: linux/arm64,linux/amd64
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}

dev/Dockerfile

@@ -1,5 +1,7 @@
 FROM ubuntu:latest
 
+ARG TARGETPLATFORM
+
 # Set up container and time zones
 RUN apt-get update && \
     DEBIAN_FRONTEND=noninteractive TZ="America/New_York" \
@@ -30,13 +32,13 @@ RUN pip install --break-system-packages grpcio-tools
 
 RUN wget https://github.com/renode/renode/releases/download/v1.15.3/renode-1.15.3.linux-portable.tar.gz
 RUN mkdir renode_portable && tar -xvf renode-*.linux-portable.tar.gz -C renode_portable --strip-components=1 && rm renode-*.linux-portable.tar.gz
-ENV PATH $PATH:/renode_portable
+ENV PATH=$PATH:/renode_portable
 
 RUN wget https://github.com/ThrowTheSwitch/CMock/archive/refs/tags/v2.6.0.tar.gz -O cmock.tar.gz
 RUN mkdir cmock_portable && tar -xvf cmock.tar.gz -C cmock_portable --strip-components=1 && rm cmock.tar.gz
-ENV PATH $PATH:/cmock_portable
+ENV PATH=$PATH:/cmock_portable
 
-RUN wget https://github.com/ThrowTheSwitch/Unity/archive/refs/tags/v2.6.1.tar.gz -O unity.tar.gz 
+RUN wget https://github.com/ThrowTheSwitch/Unity/archive/refs/tags/v2.6.1.tar.gz -O unity.tar.gz
 RUN mkdir -p /cmock_portable/vendor/unity && tar -xvf unity.tar.gz -C /cmock_portable/vendor/unity --strip-components=1 && rm unity.tar.gz
 
 # Set up a development tools directory
@@ -51,16 +53,27 @@ RUN echo "source /home/dev/scripts/alias.sh" >> ~/.bashrc
 RUN ln -sf /usr/lib/linux-tools-*/* /usr/bin/
 
 # Install cross compiler
-RUN wget -qO- https://developer.arm.com/-/media/Files/downloads/gnu/11.3.rel1/binrel/arm-gnu-toolchain-11.3.rel1-x86_64-arm-none-eabi.tar.xz | tar -xJv
+RUN if [ "$TARGETPLATFORM" = "linux/arm64" ]; then \
+  wget -qO- https://developer.arm.com/-/media/Files/downloads/gnu/11.3.rel1/binrel/arm-gnu-toolchain-11.3.rel1-aarch64-arm-none-eabi.tar.xz | tar -xJv; \
+else \
+  wget -qO- https://developer.arm.com/-/media/Files/downloads/gnu/11.3.rel1/binrel/arm-gnu-toolchain-11.3.rel1-x86_64-arm-none-eabi.tar.xz | tar -xJv; \
+fi
 
+ENV PATH $PATH:/home/dev/arm-gnu-toolchain-11.3.rel1-aarch64-arm-none-eabi/bin
 ENV PATH $PATH:/home/dev/arm-gnu-toolchain-11.3.rel1-x86_64-arm-none-eabi/bin
 
 # build and install customized openocd
-RUN apt-get install -y libtool libusb-1.0.0-dev
-RUN git clone https://github.com/STMicroelectronics/OpenOCD
-RUN cd ./OpenOCD && ./bootstrap && ./configure --enable-stlink
-RUN cd ./OpenOCD && make && make install
-RUN rm -r ./OpenOCD
+RUN if [ "$TARGETPLATFORM" = "linux/amd64" ]; then \
+  apt-get install -y libtool libusb-1.0.0-dev && \
+  git clone https://github.com/STMicroelectronics/OpenOCD && \
+  cd ./OpenOCD && \
+  ./bootstrap && \
+  ./configure --enable-stlink && \
+  make && \
+  make install && \
+  cd .. && \
+  rm -r ./OpenOCD; \
+fi
 
 WORKDIR /home/app