Bug 1742972 - Add a macosx64-aarch64-noopt build. r=firefox-build-system-reviewers,mhentges

Differential Revision: https://phabricator.services.mozilla.com/D134129

browser/config/mozconfigs/macosx64-aarch64/cross-noopt-debug

@@ -0,0 +1,12 @@
+MOZ_AUTOMATION_BUILD_SYMBOLS=0
+
+# Developers often build with these options for a better debugging experience.
+. "$topsrcdir/browser/config/mozconfigs/macosx64/debug"
+
+ac_add_options --target=aarch64-apple-darwin
+export MACOS_SDK_DIR=$MOZ_FETCHES_DIR/MacOSX11.0.sdk
+
+# We add this last to guard against inadvertent changes in the debug config.
+# It may conflict with settings from mozconfig.override, but that seems
+# unlikely.
+ac_add_options --disable-optimize

taskcluster/ci/build/macosx.yml

@@ -420,6 +420,37 @@ macosx64-noopt/debug:
             - macosx64-sdk-10.12
             - sysroot-wasm32-wasi
 
+macosx64-aarch64-noopt/debug:
+    description: "MacOS X aarch64 No-optimize Debug"
+    index:
+        job-name: macosx64-aarch64-noopt-debug
+    treeherder:
+        platform: osx-cross-noopt/debug
+        symbol: Baarch64
+        tier: 2
+    worker:
+        max-run-time: 3600
+        env:
+            PERFHERDER_EXTRA_OPTIONS: aarch64
+    run:
+        config:
+            - builds/releng_base_firefox.py
+            - builds/releng_base_mac_64_cross_builds.py
+        custom-build-variant-cfg: cross-noopt-debug
+        mozconfig-variant: cross-noopt-debug
+        keep-artifacts: false
+        extra-config:
+            mozconfig_platform: macosx64-aarch64
+    run-on-projects: ['mozilla-central']
+    use-sccache: true
+    fetches:
+        toolchain:
+            - linux64-cctools-port
+            - linux64-clang-macosx-cross
+            - linux64-sccache
+            - macosx64-sdk-11.0
+            - sysroot-wasm32-wasi
+
 macosx64-add-on-devel/opt:
     description: "MacOS X x64 add-on-devel"
     index: