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AnHeuermannAnHeuermann
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Cross compilation Dockerfile and CMake toolchains
- Added Dockerfile based on Ubuntu Noble - Build dependencies for cross compiling C/C++ - Added CMake toolchain files to set compilers and flags for cross compilation targets. - Added CI based on GitHub actions to build, test and publish the docker image. - Uses unzipped source-code FMU from OpenModelica with some modifications, based on omc v1.26.0-dev. - Added OSMC license
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‎.devcontainer/crossbuild/devcontainer.json‎

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// For format details, see https://aka.ms/devcontainer.json. For config options, see the
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// README at: https://github.com/devcontainers/templates/tree/main/src/ubuntu
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{
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"name": "def_container_crossbuild:latest",
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"build": {
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"dockerfile": "../../Dockerfile"
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},
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// Additional VSCode extensions
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"customizations": {
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"vscode": {
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"extensions": [
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"ms-vscode.cpptools-extension-pack"
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]
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}
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},
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// Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
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"remoteUser": "ubuntu"
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}

‎.gitattributes‎

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# Mark the generated FMU_Interaction1 resources as generated/ignored for diffs
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# - linguist-generated=true: tells GitHub linguist this is generated code
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# - export-ignore: exclude from archive exports
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# - -diff: disable textual diffs for these files
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# Match all files under the FMU_Interaction1 directory
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test/resources/FMU_Interaction1/** linguist-generated=true export-ignore -diff
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# Also match the directory itself (some tools may reference the directory path)
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test/resources/FMU_Interaction1/ linguist-generated=true export-ignore -diff

‎.github/dependabot.yml‎

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# Set update schedule for GitHub Actions
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version: 2
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updates:
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- package-ecosystem: "github-actions"
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directory: "/"
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schedule:
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# Check for updates to GitHub Actions every week
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interval: "monthly"

‎.github/workflows/build.yml‎

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name: Build Docker Image
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on:
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push:
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branches:
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- main
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- 'releases/**'
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pull_request:
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branches:
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- main
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- 'releases/**'
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jobs:
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build:
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name: Build Docker image
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runs-on: ubuntu-latest
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timeout-minutes: 60
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steps:
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- name: Check out the repo
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uses: actions/checkout@v5
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- name: Extract metadata (tags, labels) for Docker
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id: meta
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uses: docker/metadata-action@v5
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with:
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# Use GitHub Container Registry (ghcr) so the image can be pushed from the workflow
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images: ghcr.io/OpenModelica/crossbuild
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- name: Log in to GitHub Container Registry
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uses: docker/login-action@v3
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with:
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registry: ghcr.io
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username: ${{ github.actor }}
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password: ${{ secrets.GITHUB_TOKEN }}
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- name: Build and push Docker image
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id: build-image
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uses: docker/build-push-action@v6
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with:
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context: .
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file: ./Dockerfile
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push: true
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tags: ${{ steps.meta.outputs.tags }}
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outputs:
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image: ${{ steps.meta.outputs.tags }}
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test-compile:
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name: Test Docker image across toolchains
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needs: build
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runs-on: ubuntu-latest
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strategy:
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fail-fast: false
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matrix:
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include:
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- toolchain: i686-linux-gnu
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fmi_platform_tuple: linux32
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lib_extension: so
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- toolchain: x86_64-linux-gnu
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fmi_platform_tuple: linux64
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lib_extension: so
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- toolchain: i686-w64-mingw32
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fmi_platform_tuple: win32
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lib_extension: dll
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- toolchain: x86_64-w64-mingw32
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fmi_platform_tuple: win64
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lib_extension: dll
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timeout-minutes: 15
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steps:
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- name: Check out the repo
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uses: actions/checkout@v5
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- name: Log in to GitHub Container Registry
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uses: docker/login-action@v3
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with:
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registry: ghcr.io
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username: ${{ github.actor }}
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password: ${{ secrets.GITHUB_TOKEN }}
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- name: Pull image pushed by build job
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shell: bash
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run: |
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docker pull "${{ needs.build.outputs.image }}"
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- name: Test cross-compilation for matrix toolchain
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shell: bash
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env:
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TOOLCHAIN: ${{ matrix.toolchain }}
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FMI_PLATFORM_TUPLE: ${{ matrix.fmi_platform_tuple }}
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LIB_EXTENSION: ${{ matrix.lib_extension }}
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run: |
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docker run --rm \
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-v "${{ github.workspace }}":/work \
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-w /work \
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"${{ needs.build.outputs.image }}" \
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bash -lc "\
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cmake -S test/resources/FMU_Interaction1/sources \
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-B test/resources/FMU_Interaction1/sources/build_${TOOLCHAIN} \
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-DFMI_INTERFACE_HEADER_FILES_DIRECTORY=/work/test/resources/fmi \
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-DCMAKE_TOOLCHAIN_FILE=/opt/cmake/toolchain/${TOOLCHAIN}.cmake && \
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cmake --build test/resources/FMU_Interaction1/sources/build_${TOOLCHAIN} --target install && \
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test -f test/resources/FMU_Interaction1/binaries/${FMI_PLATFORM_TUPLE}/Interaction1.${LIB_EXTENSION} && \
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cmake --build test/resources/FMU_Interaction1/sources/build_${TOOLCHAIN} --target create_fmu"
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- name: Upload Interaction1.fmu
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uses: actions/upload-artifact@v5
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with:
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name: Interaction1-${{ matrix.toolchain }}
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path: test/resources/Interaction1.fmu
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if-no-files-found: error
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test-import:
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name: Test FMU import across systems
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needs: test-compile
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runs-on: ${{ matrix.os }}
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strategy:
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fail-fast: false
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matrix:
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include:
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- os: ubuntu-latest
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fmu_artifact: Interaction1-x86_64-linux-gnu
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- os: windows-latest
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fmu_artifact: Interaction1-x86_64-w64-mingw32
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timeout-minutes: 30
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steps:
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- name: Download Interaction1.fmu
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uses: actions/download-artifact@v5
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with:
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name: ${{ matrix.fmu_artifact }}
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- name: Install OMSimulator
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uses: OpenModelica/[email protected]
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with:
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version: '1'
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packages: |
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'omc'
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'omsimulator'
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- name: Simulate 64-bit Linux FMU
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if: runner.os == 'Linux'
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shell: bash
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run: OMSimulator Interaction1.fmu
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- name: Simulate 64-bit Windows FMU
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if: runner.os == 'Windows'
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run: OMSimulator.exe Interaction1.fmu

‎.github/workflows/publish.yml‎

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name: Publish Docker Image
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on:
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release:
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types: [published]
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jobs:
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push_to_registry:
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name: Push Docker image to Docker Hub
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runs-on: ubuntu-latest
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timeout-minutes: 60
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steps:
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- name: Check out the repo
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uses: actions/checkout@v5
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- name: Log in to Docker Hub
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uses: docker/login-action@v3
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with:
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username: ${{ secrets.DOCKERHUB_USERNAME }}
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password: ${{ secrets.DOCKERHUB_TOKEN }}
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- name: Extract metadata (tags, labels) for Docker
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id: meta
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uses: docker/metadata-action@v5
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with:
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images: OpenModelica/crossbuild
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- name: Build and push Docker image
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uses: docker/build-push-action@v6
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with:
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context: .
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file: ./Dockerfile
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push: true
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tags: ${{ steps.meta.outputs.tags }}
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labels: ${{ steps.meta.outputs.labels }}

‎.vscode/launch.json‎

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{
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// Use IntelliSense to learn about possible attributes.
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// Hover to view descriptions of existing attributes.
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// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
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"version": "0.2.0",
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"configurations": [
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{
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"name": "(gdb) Launch omc",
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"type": "cppdbg",
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"request": "launch",
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"program": "/home/USER/workdir/OpenModelica/build_cmake/install_cmake/bin/omc",
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"args": [
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"genFMUResources.mos"
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],
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"stopAtEntry": false,
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"cwd": "${workspaceFolder}/test",
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"environment": [],
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"externalConsole": false,
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"MIMode": "gdb",
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"setupCommands": [
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{
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"description": "Enable pretty-printing for gdb",
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"text": "-enable-pretty-printing",
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"ignoreFailures": true
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},
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{
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"description": "Set Disassembly Flavor to Intel",
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"text": "-gdb-set disassembly-flavor intel",
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"ignoreFailures": true
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},
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{
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"description": "Ignore power-fail (SIGPWR) in GDB: don't stop or print; still pass to program",
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"text": "-interpreter-exec console \"handle SIGPWR nostop noprint pass\"",
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"ignoreFailures": true
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},
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{
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"description": "Ignore CPU time limit exceeded (SIGXCPU) in GDB: don't stop or print; still pass to program",
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"text": "-interpreter-exec console \"handle SIGXCPU nostop noprint pass\"",
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"ignoreFailures": true
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}
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]
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}
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]
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}

‎Dockerfile‎

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ARG DIST=ubuntu:noble
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FROM ${DIST}
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LABEL maintainer="AnHeuermann"
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LABEL description="Cross-compile C FMUs for Linux and Windows"
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COPY toolchain/ /opt/cmake/toolchain/
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# Install build dependencies
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RUN apt-get update && apt-get install -y --no-install-recommends \
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binutils-mingw-w64 \
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build-essential \
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ca-certificates \
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clang \
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cmake \
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curl \
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g++ \
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g++-multilib \
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gcc \
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gcc-multilib \
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git \
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make \
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mingw-w64 \
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pkg-config \
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unzip \
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zip \
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&& rm -rf /var/lib/apt/lists/*

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