Move aarch64 from QEMU to native aarch64 machines

.ci-dockerfiles/aarch64-unknown-linux-ubuntu24.04-builder/Dockerfile

@@ -0,0 +1,35 @@
+FROM ubuntu:24.04
+
+# Keep annoying tzdata prompt from coming up
+# Thanks cmake!
+ENV DEBIAN_FRONTEND=noninteractive
+ENV DEBCONF_NONINTERACTIVE_SEEN=true
+
+RUN apt-get update \
+  && apt-get install -y --no-install-recommends \
+  apt-transport-https \
+  build-essential \
+  clang \
+  cmake \
+  git \
+  libclang-rt-dev \
+  lldb \
+  make \
+  xz-utils \
+  zlib1g-dev \
+  curl \
+  python3-pip \
+  wget \
+  systemtap-sdt-dev \
+ && rm -rf /var/lib/apt/lists/* \
+ && apt-get -y autoremove --purge \
+ && apt-get -y clean \
+ && pip3 install --break-system-packages cloudsmith-cli
+
+# needed for GitHub actions
+RUN git config --global --add safe.directory /__w/ponyc/ponyc
+
+# add user pony in order to not run tests as root
+RUN useradd -u 1001 -ms /bin/bash -d /home/pony -g root pony
+USER pony
+WORKDIR /home/pony

.ci-dockerfiles/aarch64-unknown-linux-ubuntu24.04-builder/build-and-push.bash

@@ -0,0 +1,17 @@
+#!/bin/bash
+
+set -o errexit
+set -o nounset
+
+#
+# *** You should already be logged in to GHCR when you run this ***
+#
+
+NAME="ghcr.io/ponylang/ponyc-ci-aarch64-unknown-linux-ubuntu24.04-builder"
+TODAY=$(date +%Y%m%d)
+DOCKERFILE_DIR="$(dirname "$0")"
+BUILDER="aarch64-builder-$(date +%s)"
+
+docker buildx create --use --name "${BUILDER}"
+docker buildx build --platform linux/arm64 --pull -t "${NAME}:${TODAY}" --output "type=image,push=true" "${DOCKERFILE_DIR}"
+docker buildx stop "${BUILDER}"

.github/workflows/lint-action-workflows.yml

@@ -17,6 +17,6 @@ jobs:
       - name: Checkout
         uses: actions/[email protected]
       - name: Check workflow files
-        uses: docker://ghcr.io/ponylang/shared-docker-ci-actionlint:20241206
+        uses: docker://ghcr.io/ponylang/shared-docker-ci-actionlint:20250119
         with:
           args: -color

.github/workflows/pr.yml

@@ -280,13 +280,13 @@ jobs:
         run: make test-cross-ci config=release PONYPATH=../armv7-a/release cross_triple=arm-unknown-linux-gnueabihf cross_arch=armv7-a cross_cpu=cortex-a9 cross_linker=arm-linux-gnueabihf-gcc cross_runner="qemu-arm-static -cpu cortex-a9 -L /usr/local/arm-linux-gnueabihf/libc"
 
   aarch64-linux:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04-arm
 
     strategy:
       fail-fast: false
       matrix:
         include:
-          - image: ghcr.io/ponylang/ponyc-ci-cross-aarch64:20240427
+          - image: ghcr.io/ponylang/ponyc-ci-aarch64-unknown-linux-ubuntu24.04-builder:20250118
             name: aarch64 Linux glibc
 
     name: ${{ matrix.name }}
@@ -313,20 +313,16 @@ jobs:
           key: libs-${{ matrix.image }}-${{ hashFiles('Makefile', 'CMakeLists.txt', 'lib/CMakeLists.txt') }}
       - name: Build Debug Runtime
         run: |
-          make configure config=debug
+          make configure arch=armv8-a config=debug
           make build config=debug
-      - name: Build Debug Cross-Compiled Runtime
-        run: make cross-libponyrt config=debug CC=aarch64-linux-gnu-gcc CXX=aarch64-linux-gnu-g++ arch=armv8-a cross_cflags="-march=armv8-a -mtune=cortex-a53" cross_lflags="-O3;-march=aarch64"
-      - name: Test with Debug Cross-Compiled Runtime
-        run: make test-cross-ci config=debug PONYPATH=../armv8-a/debug cross_triple=aarch64-unknown-linux-gnu cross_arch=armv8-a cross_cpu=cortex-a53 cross_linker=aarch64-linux-gnu-gcc cross_runner="qemu-aarch64-static -cpu cortex-a53 -L /usr/local/aarch64-linux-gnu/libc"
+      - name: Test with Debug Runtime
+        run: make test-ci config=debug usedebugger=lldb
       - name: Build Release Runtime
         run: |
-          make configure config=release
+          make configure arch=armv8-a config=release
           make build config=release
-      - name: Build Release Cross-Compiled Runtime
-        run: make cross-libponyrt config=release CC=aarch64-linux-gnu-gcc CXX=aarch64-linux-gnu-g++ arch=armv8-a cross_cflags="-march=armv8-a -mtune=cortex-a53" cross_lflags="-O3;-march=aarch64"
-      - name: Test with Release Cross-Compiled Runtime
-        run: make test-cross-ci config=release PONYPATH=../armv8-a/release cross_triple=aarch64-unknown-linux-gnu cross_arch=armv8-a cross_cpu=cortex-a53 cross_linker=aarch64-linux-gnu-gcc cross_runner="qemu-aarch64-static -cpu cortex-a53 -L /usr/local/aarch64-linux-gnu/libc"
+      - name: Test with Release Runtime
+        run: make test-ci config=release usedebugger=lldb
 
   x86_64-macos:
     runs-on: macos-13

.github/workflows/stress-test-runtime.yml

@@ -90,31 +90,26 @@ jobs:
           content: ${{ github.server_url}}/${{ github.repository }}/actions/runs/${{ github.run_id }}failed.
 
   aarch64-linux:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04-arm
 
     strategy:
       fail-fast: false
       matrix:
         include:
-          # these don't currently use a debugger as cross compilation hasn't
-          # been set up to do 'run in debugger'
-          - image: ghcr.io/ponylang/ponyc-ci-cross-aarch64:20240427
+          - image: ponyc-ci-aarch64-unknown-linux-ubuntu24.04-builder:20250118
             name: aarch64-unknown-linux-ubuntu24.04 [release]
-            target: test-cross-stress-release
-          - image: ghcr.io/ponylang/ponyc-ci-cross-aarch64:20240427
+            target: test-stress-release
+            debugger: lldb
+          - image: ponyc-ci-aarch64-unknown-linux-ubuntu24.04-builder:20250118
             name: aarch64-unknown-linux-ubuntu24.04 [debug]
-            target: test-cross-stress-debug
-          - image: ghcr.io/ponylang/ponyc-ci-cross-aarch64:20240427
-            name: aarch64-unknown-linux-ubuntu24.04 [cd] [release]
-            target: test-cross-stress-with-cd-release
-          - image: ghcr.io/ponylang/ponyc-ci-cross-aarch64:20240427
-            name: aarch64-unknown-linux-ubuntu24.04 [cd] [debug]
-            target: test-cross-stress-with-cd-debug
+            target: test-stress-debug
+            debugger: lldb
 
     name: ${{ matrix.name }}
     container:
       image: ${{ matrix.image }}
       options: --user pony --cap-add=SYS_PTRACE --security-opt seccomp=unconfined
+
     steps:
       - name: Checkout
         uses: actions/[email protected]
@@ -135,12 +130,10 @@ jobs:
           key: libs-${{ matrix.image }}-${{ hashFiles('Makefile', 'CMakeLists.txt', 'lib/CMakeLists.txt') }}
       - name: Build Debug Runtime
         run: |
-          make configure config=debug
+          make configure arch=armv8-a config=debug
           make build config=debug
-      - name: Build Debug Cross-Compiled Runtime
-        run: make cross-libponyrt config=debug CC=aarch64-linux-gnu-gcc CXX=aarch64-linux-gnu-g++ arch=armv8-a cross_cflags="-march=armv8-a -mtune=cortex-a53" cross_lflags="-O3;-march=aarch64"
       - name: Run Stress Test
-        run: make ${{ matrix.target }} config=debug PONYPATH=../armv8-a/debug cross_triple=aarch64-unknown-linux-gnu cross_arch=armv8-a cross_cpu=cortex-a53 cross_linker=aarch64-linux-gnu-gcc cross_runner="qemu-aarch64-static -cpu cortex-a53 -L /usr/local/aarch64-linux-gnu/libc"
+        run: make ${{ matrix.target }} config=debug usedebugger='${{ matrix.debugger }}'
       - name: Send alert on failure
         if: ${{ failure() }}
         uses: zulip/github-actions-zulip/send-message@e4c8f27c732ba9bd98ac6be0583096dea82feea5

.github/workflows/update-lib-cache.yml

@@ -27,7 +27,32 @@ jobs:
           - image: ghcr.io/ponylang/ponyc-ci-cross-arm:20240427
           - image: ghcr.io/ponylang/ponyc-ci-cross-armhf:20240427
           - image: ghcr.io/ponylang/ponyc-ci-cross-riscv64:20240427
-          - image: ghcr.io/ponylang/ponyc-ci-cross-aarch64:20240427
+
+    name: ${{ matrix.image }}
+    container:
+      image: ${{ matrix.image }}
+      options: --user pony
+    steps:
+      - name: Checkout
+        uses: actions/[email protected]
+      - name: Cache Libs
+        id: cache-libs
+        uses: actions/cache@v4
+        with:
+          path: build/libs
+          key: libs-${{ matrix.image }}-${{ hashFiles('Makefile', 'CMakeLists.txt', 'lib/CMakeLists.txt') }}
+      - name: Build Libs
+        if: steps.cache-libs.outputs.cache-hit != 'true'
+        run: make libs build_flags=-j8
+
+  aarch64-linux:
+    runs-on: ubuntu-24.04-arm
+
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - image: ghcr.io/ponylang/ponyc-ci-aarch64-unknown-linux-ubuntu24.04-builder:20250118
 
     name: ${{ matrix.image }}
     container: