Fix linux arm compiling and add CI for cross-compiled builds (#857)

* Remove duplicate slash

* Run CI on cross-arch builds

* Install cross-arch compiler

* Install cross-arch compiler for azure pipeline

Author: devm33

.github/workflows/ci.yml

@@ -5,12 +5,13 @@ on:
 
 jobs:
   build-test:
-    name: Build & Test (${{ matrix.os }})
+    name: Build & Test (${{ matrix.os }}${{ matrix.cross && ' xarch' || '' }})
     runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
       matrix:
         os: [ubuntu-22.04, macos-14, windows-2022]
+        cross: [false, true]
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -22,19 +23,38 @@ jobs:
         with:
           node-version: '22.x'
 
+      - name: Set architecture
+        id: arch
+        shell: bash
+        run: |
+          if [ "${{ runner.os }}" = "macOS" ]; then
+            echo "arch=${{ matrix.cross && 'x64' || 'arm64' }}" >> $GITHUB_OUTPUT
+          else
+            echo "arch=${{ matrix.cross && 'arm64' || 'x64' }}" >> $GITHUB_OUTPUT
+          fi
+
       - name: Install sysroot
         if: runner.os == 'Linux'
         run: |
           sudo apt-get update -qq
-          sudo apt-get install -y gcc-10 g++-10
-          SYSROOT_PATH=$(node scripts/linux/install-sysroot.js x64 | grep "SYSROOT_PATH=" | cut -d= -f2)
+          if [ "${{ steps.arch.outputs.arch }}" = "arm64" ]; then
+            sudo apt-get install -y gcc-10-aarch64-linux-gnu g++-10-aarch64-linux-gnu
+            echo "CC=aarch64-linux-gnu-gcc-10" >> $GITHUB_ENV
+            echo "CXX=aarch64-linux-gnu-g++-10" >> $GITHUB_ENV
+          else
+            sudo apt-get install -y gcc-10 g++-10
+            echo "CC=gcc-10" >> $GITHUB_ENV
+            echo "CXX=g++-10" >> $GITHUB_ENV
+          fi
+          SYSROOT_PATH=$(node scripts/linux/install-sysroot.js ${{ steps.arch.outputs.arch }} | grep "SYSROOT_PATH=" | cut -d= -f2)
           echo "SYSROOT_PATH=$SYSROOT_PATH" >> $GITHUB_ENV
           echo "Sysroot path set to: $SYSROOT_PATH"
-          echo "CC=gcc-10" >> $GITHUB_ENV
-          echo "CXX=g++-10" >> $GITHUB_ENV
 
       - name: Install dependencies and build
         run: npm ci
+        env:
+          ARCH: ${{ steps.arch.outputs.arch }}
+          npm_config_arch: ${{ steps.arch.outputs.arch }}
 
       - name: Verify GLIBC requirements
         if: runner.os == 'Linux'
@@ -45,7 +65,9 @@ jobs:
           ./scripts/linux/verify-glibc-requirements.sh
 
       - name: Test
+        if: ${{ !matrix.cross }}
         run: npm test
 
       - name: Lint
+        if: ${{ !matrix.cross }}
         run: npm run lint

pipelines/build.yml

@@ -16,11 +16,17 @@ steps:
 - bash: |
     if [ "$(uname)" = "Linux" ]; then
       sudo apt-get update -qq
-      sudo apt-get install -y gcc-10 g++-10
+      if [ "${{ parameters.arch }}" = "arm64" ]; then
+        sudo apt-get install -y gcc-10-aarch64-linux-gnu g++-10-aarch64-linux-gnu
+        echo "##vso[task.setvariable variable=CC]aarch64-linux-gnu-gcc-10"
+        echo "##vso[task.setvariable variable=CXX]aarch64-linux-gnu-g++-10"
+      else
+        sudo apt-get install -y gcc-10 g++-10
+        echo "##vso[task.setvariable variable=CC]gcc-10"
+        echo "##vso[task.setvariable variable=CXX]g++-10"
+      fi
       SYSROOT_PATH=$(node scripts/linux/install-sysroot.js ${{ parameters.arch }} | grep "SYSROOT_PATH=" | cut -d= -f2)
       echo "##vso[task.setvariable variable=SYSROOT_PATH]$SYSROOT_PATH"
-      echo "##vso[task.setvariable variable=CC]gcc-10"
-      echo "##vso[task.setvariable variable=CXX]g++-10"
       echo "Sysroot path set to: $SYSROOT_PATH"
     elif [ "$(uname)" = "Darwin" ]; then
       echo "##vso[task.setvariable variable=CC]clang"

src/utils.ts

@@ -17,7 +17,7 @@ export function loadNativeModule(name: string): {dir: string, module: any} {
   let lastError: unknown;
   for (const d of dirs) {
     for (const r of relative) {
-      const dir = `${r}/${d}/`;
+      const dir = `${r}/${d}`;
       try {
         return { dir, module: require(`${dir}/${name}.node`) };
       } catch (e) {