Build for linux/arm64 architecture

.github/workflows/v8build.yml

@@ -1,33 +1,39 @@
 name: V8 Build
 
 on: workflow_dispatch
-
-jobs:
-    build:
-        name: Build V8 for ${{ matrix.platform }}
-        strategy:
-            matrix:
-                platform: [ubuntu-latest, macos-latest]
-        runs-on: ${{ matrix.platform }}
-        steps:
-            - name: Checkout
-              uses: actions/checkout@v2
-              with:
-                  submodules: true
-                  fetch-depth: 1
-            - name: Build V8 linux
-              if: matrix.platform == 'ubuntu-latest'
-              run: cd deps && ./build.py --no-clang
-            - name: Build V8 macOS
-              if: matrix.platform == 'macos-latest'
-              run: cd deps && ./build.py
-            - name: Create PR
-              uses: peter-evans/create-pull-request@v3
-              with:
-                commit-message: Update V8 static library for ${{ matrix.platform  }}
-                branch: v8-lib
-                branch-suffix: random
-                delete-branch: true
-                title: V8 static library for ${{ matrix.platform  }}
-                body: Auto-generated pull request to build V8 for ${{ matrix.platform  }}
 
+jobs:
+  build:
+    name: Build V8 for ${{ matrix.platform }}/${{ matrix.arch }}
+    strategy:
+      matrix:
+        platform: [ubuntu-latest, macos-latest]
+        arch: [arm64, x64]
+        exclude:
+          - platform: macos-latest
+            arch: arm64
+    runs-on: ${{ matrix.platform }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          submodules: true
+          fetch-depth: 1
+      - name: Install g++ (arm64)
+        if: matrix.arch == 'arm64'
+        run: sudo apt-get update && sudo apt-get install -y g++-aarch64-linux-gnu
+      - name: Build V8 linux/${{ matrix.arch }}
+        if: matrix.platform == 'ubuntu-latest'
+        run: cd deps && ./build.py --no-clang --arch=${{ matrix.arch }}
+      - name: Build V8 macOS
+        if: matrix.platform == 'macos-latest'
+        run: cd deps && ./build.py
+      - name: Create PR
+        uses: peter-evans/create-pull-request@v3
+        with:
+          commit-message: Update V8 static library for ${{ matrix.platform }}/${{ matrix.arch }}
+          branch: v8-lib
+          branch-suffix: random
+          delete-branch: true
+          title: V8 static library for ${{ matrix.platform }}/${{ matrix.arch }}
+          body: Auto-generated pull request to build V8 for ${{ matrix.platform }}/${{ matrix.arch }}

cgo.go

@@ -10,17 +10,19 @@ package v8go
 // #cgo darwin linux CXXFLAGS: -I${SRCDIR}/deps/include
 // #cgo LDFLAGS: -pthread -lv8
 // #cgo windows LDFLAGS: -lv8_libplatform
-// #cgo darwin LDFLAGS: -L${SRCDIR}/deps/darwin_x86_64
-// #cgo linux LDFLAGS: -L${SRCDIR}/deps/linux_x86_64
+// #cgo darwin LDFLAGS: -L${SRCDIR}/deps/darwin_x64
+// #cgo linux,amd64 LDFLAGS: -L${SRCDIR}/deps/linux_x64
+// #cgo linux,arm64 LDFLAGS: -L${SRCDIR}/deps/linux_arm64
 import "C"
 
 // These imports forces `go mod vendor` to pull in all the folders that
 // contain V8 libraries and headers which otherwise would be ignored.
 // DO NOT REMOVE
 import (
-	_ "rogchap.com/v8go/deps/darwin_x86_64"
+	_ "rogchap.com/v8go/deps/darwin_x64"
 	_ "rogchap.com/v8go/deps/include"
 	_ "rogchap.com/v8go/deps/include/cppgc"
 	_ "rogchap.com/v8go/deps/include/libplatform"
-	_ "rogchap.com/v8go/deps/linux_x86_64"
+	_ "rogchap.com/v8go/deps/linux_arm64"
+	_ "rogchap.com/v8go/deps/linux_x64"
 )

deps/build.py

@@ -8,7 +8,8 @@
 parser = argparse.ArgumentParser()
 parser.add_argument('--debug', dest='debug', action='store_true')
 parser.add_argument('--no-clang', dest='clang', action='store_false')
-parser.set_defaults(debug=False, clang=True)
+parser.add_argument('--arch', dest='arch', action='store')
+parser.set_defaults(debug=False, clang=True, arch="x64")
 args = parser.parse_args()
 
 deps_path = os.path.dirname(os.path.realpath(__file__))
@@ -39,6 +40,7 @@
 gn_args = """
 is_debug=%s
 is_clang=%s
+target_cpu="%s"
 clang_use_chrome_plugins=false
 use_custom_libcxx=false
 use_sysroot=false
@@ -64,8 +66,7 @@ def v8deps():
                         env=env)
 
 def os_arch():
-    u = platform.uname()
-    return (u[0] + "_" + u[4]).lower()
+    return (platform.system() + "_" + args.arch).lower()
 
 def main():
     v8deps()
@@ -79,9 +80,9 @@ def main():
 
     is_debug = 'true' if args.debug else 'false'
     is_clang = 'true' if args.clang else 'false'
-    gnargs = gn_args % (is_debug, is_clang)
+    gnargs = gn_args % (is_debug, is_clang, args.arch)
     gen_args = gnargs.replace('\n', ' ')
-    
+
     subprocess.check_call([gn_path, "gen", build_path, "--args=" + gen_args], 
                         cwd=v8_path,
                         env=env)

deps/darwin_x64/vendor.go

@@ -0,0 +1,3 @@
+// Package darwin_x64 is required to provide support for vendoring modules
+// DO NOT REMOVE
+package darwin_x64

deps/linux_arm64/vendor.go

@@ -0,0 +1,3 @@
+// Package linux_arm64 is required to provide support for vendoring modules
+// DO NOT REMOVE
+package linux_arm64

deps/linux_x64/vendor.go

@@ -0,0 +1,3 @@
+// Package linux_x64 is required to provide support for vendoring modules
+// DO NOT REMOVE
+package linux_x64