feat: ARM64 builds (#22298)

This implements officially blessed and tested deno binaries for ARM64. 

Thanks to @LukeChannings for his tireless work in maintaining the
deno-arm64 [1] repo, without which this project would have been far more
complicated. For those of you requiring support for older GLIBC
versions, that repo may still be required for the near future.

Limitations: 

- This initial build is built on Ubuntu 22 using the stock GLIBC, which
will limit the utility of these binaries in certain use-cases (eg: early
versions of Ubuntu). We will attempt to support earlier versions of
ARM64 GLIBC in a later revision.
- Like the stock Linux x64 build, this is not a static build and
requires GLIBC. Running on Alpine will require installation of GLIBC.
 
Fixes #1846, #4862 

[1] https://github.com/LukeChannings/deno-arm64

3 files changed, 40 insertions, 11 deletions

diff --git a/.github/workflows/ci.generate.ts b/.github/workflows/ci.generate.ts
index 6ee7f7545..f155e8d53 100755
--- a/.github/workflows/ci.generate.ts
+++ b/.github/workflows/ci.generate.ts
@@ -9,6 +9,7 @@ const cacheVersion = 73;
 
 const ubuntuX86Runner = "ubuntu-22.04";
 const ubuntuX86XlRunner = "ubuntu-22.04-xl";
+const ubuntuARMRunner = "ubicloud-standard-16-arm";
 const windowsX86Runner = "windows-2022";
 const windowsX86XlRunner = "windows-2022-xl";
 const macosX86Runner = "macos-12";
@@ -26,6 +27,11 @@ const Runners = {
     runner:
       `\${{ github.repository == 'denoland/deno' && '${ubuntuX86XlRunner}' || '${ubuntuX86Runner}' }}`,
   },
+  linuxArm: {
+    os: "linux",
+    arch: "aarch64",
+    runner: ubuntuARMRunner,
+  },
   macosX86: {
     os: "macos",
     arch: "x86_64",
@@ -400,6 +406,14 @@ const ci = {
             job: "lint",
             profile: "debug",
           }, {
+            ...Runners.linuxArm,
+            job: "test",
+            profile: "debug",
+          }, {
+            ...Runners.linuxArm,
+            job: "test",
+            profile: "release",
+          }, {
             ...Runners.macosX86,
             job: "lint",
             profile: "debug",
@@ -456,7 +470,10 @@ const ci = {
           ...installDenoStep,
         },
         ...installPythonSteps.map((s) =>
-          withCondition(s, "matrix.job != 'lint'")
+          withCondition(
+            s,
+            "matrix.job != 'lint' && (matrix.os != 'linux' || matrix.arch != 'aarch64')",
+          )
         ),
         {
           // only necessary for benchmarks
@@ -732,7 +749,7 @@ const ci = {
         {
           name: "Autobahn testsuite",
           if: [
-            "matrix.os == 'linux' &&",
+            "(matrix.os == 'linux' && matrix.arch != 'aarch64') &&",
             "matrix.job == 'test' &&",
             "matrix.profile == 'release' &&",
             "!startsWith(github.ref, 'refs/tags/')",
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a363caef8..84f56c380 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -29,7 +29,7 @@ jobs:
           git config --global fetch.parallel 32
         if: github.event.pull_request.draft == true
       - name: Clone repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 5
           submodules: false
@@ -111,6 +111,16 @@ jobs:
             runner: ubuntu-22.04
             job: lint
             profile: debug
+          - os: linux
+            arch: aarch64
+            runner: ubicloud-standard-16-arm
+            job: test
+            profile: debug
+          - os: linux
+            arch: aarch64
+            runner: ubicloud-standard-16-arm
+            job: test
+            profile: release
           - os: macos
             arch: x86_64
             runner: macos-12
@@ -133,7 +143,7 @@ jobs:
           git config --global fetch.parallel 32
         if: '!(matrix.skip)'
       - name: Clone repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 5
           submodules: false
@@ -169,9 +179,9 @@ jobs:
         uses: actions/setup-python@v4
         with:
           python-version: 3.11
-        if: '!(matrix.skip) && (matrix.job != ''lint'')'
+        if: '!(matrix.skip) && (matrix.job != ''lint'' && (matrix.os != ''linux'' || matrix.arch != ''aarch64''))'
       - name: Remove unused versions of Python
-        if: '!(matrix.skip) && (matrix.job != ''lint'' && (matrix.os == ''windows''))'
+        if: '!(matrix.skip) && (matrix.job != ''lint'' && (matrix.os != ''linux'' || matrix.arch != ''aarch64'') && (matrix.os == ''windows''))'
         shell: pwsh
         run: |-
           $env:PATH -split ";" |
@@ -184,7 +194,7 @@ jobs:
         with:
           node-version: 18
       - name: Install protoc
-        uses: arduino/setup-protoc@v2
+        uses: arduino/setup-protoc@v3
         with:
           version: '21.12'
           repo-token: '${{ secrets.GITHUB_TOKEN }}'
@@ -331,7 +341,7 @@ jobs:
           fi
         if: '!(matrix.skip)'
       - name: Cache Cargo home
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: |-
             ~/.cargo/registry/index
@@ -441,7 +451,7 @@ jobs:
           gsutil -h "Cache-Control: no-cache" cp canary-latest.txt gs://dl.deno.land/canary-$(rustc -vV | sed -n "s|host: ||p")-latest.txt
       - name: Autobahn testsuite
         if: |-
-          !(matrix.skip) && (matrix.os == 'linux' &&
+          !(matrix.skip) && ((matrix.os == 'linux' && matrix.arch != 'aarch64') &&
           matrix.job == 'test' &&
           matrix.profile == 'release' &&
           !startsWith(github.ref, 'refs/tags/'))
@@ -622,7 +632,7 @@ jobs:
           body_path: target/release/release-notes.md
           draft: true
       - name: Save cache build output (main)
-        uses: actions/cache/save@v3
+        uses: actions/cache/save@v4
         if: '!(matrix.skip) && ((matrix.job == ''test'' || matrix.job == ''lint'') && github.ref == ''refs/heads/main'')'
         with:
           path: |-
diff --git a/test_ffi/tests/test.js b/test_ffi/tests/test.js
index c1aa68fad..8e57cd34b 100644
--- a/test_ffi/tests/test.js
+++ b/test_ffi/tests/test.js
@@ -372,7 +372,9 @@ assertEquals(isNullBufferDeopt(new Uint8Array()), true, "isNullBufferDeopt(new U
 
 // V8 bug: inline Uint8Array creation to fast call sees non-null pointer
 // https://bugs.chromium.org/p/v8/issues/detail?id=13489
-assertEquals(isNullBuffer(new Uint8Array()), false, "isNullBuffer(new Uint8Array()) !== false");
+if (Deno.build.os != "linux" || Deno.build.arch != "aarch64") {
+  assertEquals(isNullBuffer(new Uint8Array()), false, "isNullBuffer(new Uint8Array()) !== false");
+}
 
 // Externally backed ArrayBuffer has a non-null data pointer, even though its length is zero.
 const externalZeroBuffer = new Uint8Array(Deno.UnsafePointerView.getArrayBuffer(ptr0, 0));