build-linux.yml

name: Build Linux

on:
  workflow_call:
    inputs:
      cc:
        required: false
        type: string
        default: gcc
      cxx:
        required: false
        type: string
        default: g++
      enable-sanitizers:
        required: false
        type: boolean
        default: false
      enable-thread-sanitizer:
        required: false
        type: boolean
        default: false

jobs:
  build:
    runs-on: ubuntu-latest
    timeout-minutes: 15
    env:
      CC: ${{ inputs.cc }}
      CXX: ${{ inputs.cxx }}
    steps:
      - uses: actions/checkout@v5

      - name: Install packages
        run: |
          sudo apt-get update
          sudo apt-get install -y libjavascriptcoregtk-4.1-dev libcurl4-openssl-dev ninja-build clang

      - name: Configure CMake
        run: |
          cmake -B Build/ubuntu -G Ninja \
            -D CMAKE_BUILD_TYPE=RelWithDebInfo \
            -D ENABLE_SANITIZERS=${{ inputs.enable-sanitizers && 'ON' || 'OFF' }} \
            -D ENABLE_THREAD_SANITIZER=${{ inputs.enable-thread-sanitizer && 'ON' || 'OFF' }} \
            -D CMAKE_C_COMPILER=${{ inputs.cc }} \
            -D CMAKE_CXX_COMPILER=${{ inputs.cxx }}

      - name: Build
        run: ninja -C Build/ubuntu

      - name: Run Tests
        working-directory: Build/ubuntu/Tests/UnitTests
        run: ./UnitTests
        env:
          TSAN_OPTIONS: ${{ inputs.enable-thread-sanitizer && format('suppressions={0}/.github/tsan_suppressions.txt', github.workspace) || '' }}
          # JSC's concurrent GC on Linux uses SIGUSR1 + sem_wait to suspend mutator
          # threads at safepoints. TSan's signal interception delays SIGUSR1 delivery
          # indefinitely, deadlocking the Collector Thread's sem_wait. Disabling the
          # concurrent collector removes the dedicated Collector Thread, so GC runs
          # on the mutator without cross-thread signals. macOS JSC uses Mach
          # thread_suspend() and is unaffected.
          JSC_useConcurrentGC: ${{ inputs.enable-thread-sanitizer && '0' || '' }}