Patmos test added to the github workflow

.github/actions/setup-patmos/action.yml

@@ -0,0 +1,17 @@
+name: Install Patmos and dependencies (Linux only)
+description: Install Patmos and dependencies (Linux only)
+runs:
+  using: "composite"
+  steps:
+    - name: Setup
+      run: |
+        # Clone the Patmos repository
+        mkdir ~/t-crest
+        cd ~/t-crest
+        git clone https://github.com/t-crest/patmos-misc.git misc
+        ./misc/build.sh 
+
+        # Save location in PATH
+        export PATH=$PATH:$HOME/t-crest/misc
+      shell: bash
+

.github/workflows/c-embedded.yml

@@ -23,3 +23,7 @@ jobs:
   # Run the C FlexPRET integration tests.
   flexpret:
     uses: ./.github/workflows/c-flexpret-tests.yml
+
+  # Run the C Patmos integration tests. 
+  patmos:
+    uses: ./.github/workflows/c-patmos-tests.yml

.github/workflows/c-patmos-tests.yml

@@ -0,0 +1,53 @@
+name: C Patmos tests
+
+on:
+  workflow_call:
+    inputs:
+      compiler-ref:
+        required: false
+        type: string
+      runtime-ref:
+        required: false
+        type: string
+      use-cpp:
+        required: false
+        type: boolean
+        default: false
+      scheduler:
+        required: false
+        type: string
+      all-platforms:
+        required: false
+        default: true
+        type: boolean
+
+jobs:
+  Patmos-tests:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out lingua-franca repository
+        uses: actions/checkout@v3
+        with:
+          repository: lf-lang/lingua-franca
+          submodules: true
+          ref: ${{ inputs.compiler-ref }}
+          fetch-depth: 0
+      - name: Prepare build environment
+        uses: ./.github/actions/prepare-build-env
+      - name: Setup and build Patmos
+        uses: ./.github/actions/setup-patmos
+      - name: Check out specific ref of reactor-c
+        uses: actions/checkout@v3
+        with:
+          repository: lf-lang/reactor-c
+          path: core/src/main/resources/lib/c/reactor-c
+          ref: ${{ inputs.runtime-ref }}
+        if: ${{ inputs.runtime-ref }}
+      - name: Run Patmos smoke tests
+        run: |
+          rm -rf test/C/src-gen
+      - name: Report to CodeCov
+        uses: ./.github/actions/report-code-coverage
+        with:
+          files: core/build/reports/jacoco/integrationTestCodeCoverageReport/integrationTestCodeCoverageReport.xml
+        if: ${{ github.repository == 'lf-lang/lingua-franca' }}

core/src/main/java/org/lflang/generator/c/CCmakeGenerator.java

@@ -225,7 +225,14 @@ CodeBuilder generateCMakeCode(
           cMakeCode.pr("set(FP_FLASH_DEVICE " + selectedFlashDevice.value() + ")");
           cMakeCode.newLine();
         } // No FP_FLASH_DEVICE will automatically become /dev/ttyUSB0
-
+        break;
+      case PATMOS:
+        cMakeCode.newLine();
+        cMakeCode.pr("# Find and set Patmos compiler");
+        cMakeCode.pr("find_program(CLANG_EXECUTABLE NAMES patmos-clang clang DOC \"Path to the clang front-end.\")");
+        cMakeCode.pr("set(CMAKE_C_COMPILER ${CLANG_EXECUTABLE})");
+        cMakeCode.pr("project(" + executableName + " LANGUAGES C)");
+        cMakeCode.newLine();
         break;
       default:
         cMakeCode.pr("project(" + executableName + " LANGUAGES C)");