Fix

.github/workflows/sdk-ci.yml

@@ -1,4 +1,5 @@
-name: Raspberry PI Pico Docker SDK CI
+
+name: Build, test and push Docker image
 
 on:
   push:
@@ -14,39 +15,64 @@ env:
   TEST_TAG: pico_test_sdk
 
 jobs:
-  sdk_container:
+  build-and-test:
     runs-on: ubuntu-latest
     steps:
-      - name: Checkout
+      - name: Checkout code
         uses: actions/checkout@v3
-      - name: Set up QEMU
+
+      - name: Set up QEMU (for ARM builds)
         uses: docker/setup-qemu-action@v3
+
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
-      - name: Build SDK
+
-        uses: docker/build-push-action@v6
-        with:
-          context: .
-          load: true
-          tags: ${{ env.TEST_TAG }}
-      - name: Test SDK
-        run: bash ./test_sdk.sh ${{ env.TEST_TAG }}
       - name: Login to DockerHub
         uses: docker/login-action@v3
         with:
           username: ${{ github.actor }}
           password: ${{ secrets.DOCKER_HUB_TOKEN }}
-      - name: Extract SDK metadata
+
-        id: meta
+      - name: Build Docker image (multi-arch, no push)
-        uses: docker/metadata-action@v4
+        uses: docker/build-push-action@v6
+        id: build
         with:
-          images: lukstep/raspberry-pi-pico-sdk
+          context: .
-      - name: Push SDK image
+          platforms: linux/amd64
-        if: github.event_name == 'release' && github.event.action == 'published'
+          push: false
+          load: true  # Allows testing the image locally
+          tags: ${{ env.TEST_TAG }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
+      - name: Run Tests (from built image)
+        run: bash ./test_sdk.sh ${{ env.TEST_TAG }}
+
+  push-image:
+    needs: build-and-test
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Login to DockerHub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ github.actor }}
+          password: ${{ secrets.DOCKER_HUB_TOKEN }}
+
+      - name: Build and Push Docker image (multi-arch)
         uses: docker/build-push-action@v6
         with:
           context: .
-          push: true
-          tags: ${{ steps.meta.outputs.tags }}
-          labels: ${{ steps.meta.outputs.labels }}
           platforms: linux/amd64,linux/arm64
+          push: true
+          tags: lukstep/raspberry-pi-pico-sdk:latest
+          cache-from: type=gha
+          cache-to: type=gha,mode=max

Dockerfile

@@ -1,46 +1,26 @@
-FROM ubuntu:24.04
+FROM ubuntu:24.10 AS gcc_build
+
+# Build GCC RISC-V
+COPY ./install_gcc.sh /home/install_gcc.sh
+RUN bash /home/install_gcc.sh
+
+FROM ubuntu:24.10 AS sdk_setup
 
 RUN apt-get update -y && \
     apt-get upgrade -y && \
     apt-get install --no-install-recommends -y \
-        build-essential \
-        ca-certificates \
-        cmake \
-        gcc-arm-none-eabi \
                        git \
-        libnewlib-arm-none-eabi \
+                       ca-certificates \
-        libstdc++-arm-none-eabi-newlib \
                        python3 \
                        tar \
-        wget && \
+                       build-essential \
+                       gcc-arm-none-eabi \
+                       libnewlib-arm-none-eabi \
+                       libstdc++-arm-none-eabi-newlib \
+                       cmake && \
     apt-get clean && \
     rm -rf /var/lib/apt/lists/*
 
-# RISC-V toolchain
-ARG RISCV_VERSION=15.2.0-1
-ARG TARGETARCH
-
-RUN if [ "$TARGETARCH" = "arm64" ]; then \
-        ARCH=linux-arm64; \
-    elif [ "$TARGETARCH" = "amd64" ]; then \
-        ARCH=linux-x64; \
-    else \
-        echo "Unsupported arch: $TARGETARCH" && exit 1; \
-    fi && \
-    wget -q https://github.com/xpack-dev-tools/riscv-none-elf-gcc-xpack/releases/download/v${RISCV_VERSION}/xpack-riscv-none-elf-gcc-${RISCV_VERSION}-${ARCH}.tar.gz \
-        -O /tmp/riscv.tar.gz && \
-    tar -xzf /tmp/riscv.tar.gz -C /opt && \
-    rm /tmp/riscv.tar.gz
-
-# Add toolchain to PATH
-ENV PATH="/opt/xpack-riscv-none-elf-gcc-${RISCV_VERSION}/bin:${PATH}"
-
-RUN TOOLCHAIN=/opt/xpack-riscv-none-elf-gcc-${RISCV_VERSION}/bin && \
-    for f in $TOOLCHAIN/riscv-none-elf-*; do \
-        name=$(basename $f | sed 's/riscv-none-elf/riscv32-unknown-elf/'); \
-        ln -s $f /usr/local/bin/$name; \
-    done
-
 # Raspberry Pi Pico SDK
 ARG SDK_PATH=/usr/local/picosdk
 RUN git clone --depth 1 --branch 2.1.1 https://github.com/raspberrypi/pico-sdk $SDK_PATH && \
@@ -66,3 +46,8 @@ RUN git clone --depth 1 --branch 2.1.1 https://github.com/raspberrypi/picotool.g
     make -j$(nproc) && \
     cmake --install . && \
     rm -rf /home/picotool
+
+# Install GCC RISC-V
+COPY --from=gcc_build /opt/riscv/gcc14-rp2350-no-zcmp /opt/riscv/gcc14-rp2350-no-zcmp
+ENV PATH="$PATH:/opt/riscv/gcc14-rp2350-no-zcmp/bin"
+