Merge pull request #3356 from cloudflare/dlapid/linux_arm64_runner

Add arm64 linux runner configurations

.github/workflows/_bazel.yml

@@ -45,7 +45,7 @@ jobs:
           # ends up with a larger cache at the end when starting with an available cache entry,
           # resulting in a snowballing cache size and cache download/upload times.
       - name: Setup Linux
-        if: inputs.os_name == 'linux'
+        if: inputs.os_name == 'linux' || inputs.os_name == 'linux-arm'
         # Install dependencies, including clang through the LLVM APT repository. We drop the
         # install step so we can install just the packages we need.
         # libunwind, libc++abi1 and libc++1 should be automatically installed as dependencies of

.github/workflows/release.yml

@@ -56,12 +56,16 @@ jobs:
   build:
     strategy:
       matrix:
-        os: [ubuntu-22.04, macos-15, windows-2022]
+        os: [ubuntu-22.04, ubuntu-22.04-arm, macos-15, windows-2022]
         target-arch: [ X64 ]
         include:
           - os-name: linux
             os: ubuntu-22.04
             bazel-config: release_linux
+          - os-name: linux-arm64
+            os: ubuntu-22.04-arm
+            bazel-config: release_linux
+            target-arch: ARM64
           # Based on runner availability, we build both Apple Silicon and (cross-compiled) x86
           # release binaries on the macos-15 runner.
           - os-name: macOS-x64
@@ -150,6 +154,9 @@ jobs:
         include:
           - arch: linux-64
             name: Linux-X64
+          - arch: linux-arm64
+            name: Linux-ARM64
+            cpu: ARM64
           - arch: darwin-64
             name: macOS-X64
           - arch: darwin-arm64

.github/workflows/test.yml

@@ -29,6 +29,7 @@ jobs:
         os:
           [
             { name : linux, image : ubuntu-22.04 },
+            { name : linux-arm, image : ubuntu-22.04-arm },
             { name : macOS, image : macos-15 },
             { name : windows, image : windows-2025 }
           ]

build/ci.bazelrc

@@ -52,14 +52,18 @@ build:ci-linux-common --action_env=CC=/usr/lib/llvm-16/bin/clang --action_env=CX
 build:ci-linux-common --host_action_env=CC=/usr/lib/llvm-16/bin/clang --host_action_env=CXX=/usr/lib/llvm-16/bin/clang++
 
 build:ci-linux --config=ci-linux-common
+build:ci-linux-arm --config=ci-linux
 
 build:ci-linux-debug --config=ci-linux-common --config=ci-limit-storage
 build:ci-linux-debug --config=debug --config=rust-debug
 
+build:ci-linux-arm-debug --config=ci-linux-debug
+
 build:ci-linux-asan --config=ci-linux-common --config=ci-limit-storage
 # we're really struggling to fit asan build into worker disk size
 # having asan without symbols is better than none
 build:ci-linux-asan --config=asan --copt="-g0" --strip=always
+build:ci-linux-arm-asan --config=ci-linux-asan
 
 
 # Unlike the bazel Unix toolchain the macOS toolchain sets "-O0 -DDEBUG" for fastbuild by