emscripten.yml

Branch :

Show log
Commit
Author : Kohei Tokunaga
Date : 2025-08-02 15:28:46
Hash : 20eacb22
Message : Emscripten: Add wasm64 target (#927) * src/wasm32: Allow building with Emscripten with 64bit support MEMORY64 enables 64bit pointers so this commit updates the accessors for the libffi data structures accordingly. Each JS functions in ffi.c receives pointers as BigInt (i64) values and with casts them to Numer (i53) using bigintToI53Checked. While memory64 supports 64bit addressing, the maximum memory size is currently limited to 16GiB [1]. Therefore, we can assume that the passed pointers are within the Number's range. [1] https://webassembly.github.io/memory64/js-api/#limits Signed-off-by: Kohei Tokunaga <ktokunaga.mail@gmail.com> * Add wasm64 target to the build scripts This commit adds support for the wasm64 target via the configure script. Emscripten supports two modes of the -sMEMORY64 flag[1] so the script allows users specifying the value through a configuration variable. Additionally, "src/wasm32" directory has been renamed to the more generic "src/wasm" because it's now shared between both 32bit and 64bit builds. [1] https://emscripten.org/docs/tools_reference/settings_reference.html#memory64 Signed-off-by: Kohei Tokunaga <ktokunaga.mail@gmail.com> * GitHub Actions: Add wasm64 tests This commit adds a test matrix for wasm32, wasm64 and wasm64 with the -sMEMORY64=2 flag, using the latest version of Emscripten. -Wno-main is added to suppress the following warning in unwindtest.cc and unwindtest_ffi_call.cc. > FAIL: libffi.closures/unwindtest_ffi_call.cc -W -Wall -O2 (test for excess errors) > Excess errors: > ./libffi.closures/unwindtest_ffi_call.cc:20:5: warning: 'main' should not be 'extern "C"' [-Wmain] > 20 | int main (void) > | ^ > 1 warning generated. Signed-off-by: Kohei Tokunaga <ktokunaga.mail@gmail.com> * testsuite: Fix types of main function test_libffi.py calls each test's main function without arguments, but some tests define the main function with parameters. This signature mismatch causes a runtime error with the recent version of Emscripten. This commit resolves this issue by updating the function signatures to match the way they are called. Signed-off-by: Kohei Tokunaga <ktokunaga.mail@gmail.com> * README: Add document about WASM64 Signed-off-by: Kohei Tokunaga <ktokunaga.mail@gmail.com> --------- Signed-off-by: Kohei Tokunaga <ktokunaga.mail@gmail.com>

.github/workflows/emscripten.yml

name: CI emscripten

# Controls when the action will run.
on:
  # Triggers the workflow on push or pull request events but only for the master branch
  push:
    branches: [ master ]
  pull_request:
    branches: [ master ]

  # Allows you to run this workflow manually from the Actions tab
  workflow_dispatch:


env:
  PYODIDE_VERSION: 0.58.4
  # PYTHON_VERSION and EMSCRIPTEN_VERSION are determined by PYODIDE_VERSION.
  # The appropriate versions can be found in the Pyodide repodata.json
  # "info" field, or in Makefile.envs:
  # https://github.com/pyodide/pyodide/blob/main/Makefile.envs#L2
  PYTHON_VERSION: 3.12.7
  EMSCRIPTEN_VERSION: 4.0.10
  EM_CACHE_FOLDER: emsdk-cache

jobs:
  setup-emsdk-cache:
    runs-on: ubuntu-22.04
    steps:
      - name: Setup cache
        uses: actions/cache@v4
        with:
          path: ${{ env.EM_CACHE_FOLDER }}
          key: ${{ env.EMSCRIPTEN_VERSION }}

      - name: Setup emsdk
        uses: mymindstorm/setup-emsdk@v14
        with:
          version: ${{ env.EMSCRIPTEN_VERSION }}
          actions-cache-folder: ${{ env.EM_CACHE_FOLDER }}

  test-dejagnu:
    strategy:
      matrix:
        target:
          - name: wasm32
            host: wasm32
            configureflags:
            testflags:
          - name: wasm64
            host: wasm64
            configureflags:
            testflags: -sMEMORY64=1
          - name: wasm64-2
            host: wasm64
            configureflags: WASM64_MEMORY64=2
            testflags: -sMEMORY64=2
    runs-on: ubuntu-24.04
    needs: [setup-emsdk-cache]
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Setup Python
        uses: actions/setup-python@v5
        with:
          python-version: ${{ env.PYTHON_VERSION }}

      - name: Setup cache
        uses: actions/cache@v4
        with:
          path: ${{ env.EM_CACHE_FOLDER }}
          key: ${{ env.EMSCRIPTEN_VERSION }}

      - name: Setup emsdk
        uses: mymindstorm/setup-emsdk@v14
        with:
          version: ${{ env.EMSCRIPTEN_VERSION }}
          actions-cache-folder: ${{ env.EM_CACHE_FOLDER }}

      - name: Setup node.js
        uses: actions/setup-node@v4
        with:
          node-version: 24

      # This step updates emsdk's configuration file ".emscripten" to point to
      # nodejs installed in the previous step.
      - name: Configure emsdk to use the installed node.js
        run: sed -i -E 's|NODE_JS = .*|NODE_JS = '"'$(which node)'"'|g' ${EMSDK}/.emscripten

      - name: Install dependencies
        run: sudo apt-get install dejagnu libltdl-dev

      - name: Run tests
        run: testsuite/emscripten/node-tests.sh
        env:
          TARGET_HOST: ${{ matrix.target.host }}
          EXTRA_CONFIGURE_FLAGS: ${{ matrix.target.configureflags }}
          EXTRA_CFLAGS: ${{ matrix.target.testflags }}
          EXTRA_TEST_LDFLAGS: ${{ matrix.target.testflags }}

      - name: Install rlgl and run
        run: |
          wget -qO - https://rl.gl/cli/rlgl-linux-amd64.tgz | \
               tar --strip-components=2 -xvzf - ./rlgl/rlgl;
          ./rlgl l --key=0LIBFFI-0LIBFFI-0LIBFFI-0LIBFFI https://rl.gl
          ./rlgl e -l project=libffi -l sha=${GITHUB_SHA:0:7} -l CC='emcc' -l host=wasm32-unknown-linux --policy=https://github.com/libffi/rlgl-policy.git testsuite/libffi.log
          exit $?

  build:
    strategy:
      matrix:
        target:
          - name: wasm32
            host: wasm32
            configureflags:
            testflags:
          - name: wasm64
            host: wasm64
            configureflags:
            testflags: -sMEMORY64=1
          - name: wasm64-2
            host: wasm64
            configureflags: WASM64_MEMORY64=2
            testflags: -sMEMORY64=2
    runs-on: ubuntu-24.04
    needs: [setup-emsdk-cache]
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Setup cache
        uses: actions/cache@v4
        with:
          path: ${{ env.EM_CACHE_FOLDER }}
          key: ${{ env.EMSCRIPTEN_VERSION }}

      - name: Setup emsdk
        uses: mymindstorm/setup-emsdk@v12
        with:
          version: ${{ env.EMSCRIPTEN_VERSION }}
          actions-cache-folder: ${{ env.EM_CACHE_FOLDER }}

      - name: Install dependencies
        run: sudo apt-get install libltdl-dev

      - name: Build
        run: ./testsuite/emscripten/build.sh
        env:
          TARGET_HOST: ${{ matrix.target.host }}
          EXTRA_CONFIGURE_FLAGS: ${{ matrix.target.configureflags }}

      - name: Build tests
        run: |
          cp -r testsuite/libffi.call testsuite/libffi.call.test
          cp -r testsuite/libffi.closures testsuite/libffi.closures.test
          ./testsuite/emscripten/build-tests.sh testsuite/libffi.call.test
          ./testsuite/emscripten/build-tests.sh testsuite/libffi.closures.test
        env:
          EXTRA_CFLAGS: ${{ matrix.target.testflags }}
          EXTRA_LD_FLAGS: ${{ matrix.target.testflags }}

      - name: Store artifacts
        uses: actions/upload-artifact@v4
        with:
          name: built-tests-${{ matrix.target.name }}
          path: ./testsuite/libffi.c*/

  test:
    strategy:
      matrix:
        target:
          - name: wasm32
          - name: wasm64
          - name: wasm64-2
        browser: ["chrome"]
        # FIXME: selenium can't find gecko driver for "firefox"
    runs-on: ubuntu-24.04
    needs: [build]
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Download build artifact
        uses: actions/download-artifact@v4
        with:
          name: built-tests-${{ matrix.target.name }}
          path: ./testsuite/

      - uses: conda-incubator/setup-miniconda@v3
        with:
          activate-environment: pyodide-env
          python-version: ${{ env.PYTHON_VERSION }}
          channels: conda-forge

      - name: Install test dependencies
        run: pip install pytest-pyodide==${{ env.PYODIDE_VERSION }}

      - name: Run tests
        run: |
          cd testsuite/emscripten/
          mkdir test-results
          pytest \
            --junitxml=test-results/junit.xml \
              test_libffi.py \
              -k ${{ matrix.browser }} \
              -s

      - name: Install rlgl and run
        if: success() || failure()
        run: |
          wget -qO - https://rl.gl/cli/rlgl-linux-amd64.tgz | \
               tar --strip-components=2 -xvzf - ./rlgl/rlgl;
          ./rlgl l --key=0LIBFFI-0LIBFFI-0LIBFFI-0LIBFFI https://rl.gl
          ./rlgl e -l project=libffi -l sha=${GITHUB_SHA:0:7} -l CC='emcc' -l host=${{ matrix.browser }} --policy=https://github.com/libffi/rlgl-policy.git testsuite/emscripten/test-results/junit.xml
          exit $?

kc3-lang/libffi/.github/workflows/emscripten.yml

Commit

kc3-lang/libffi /.github/workflows/emscripten.yml