Bug 1532952 - Add an optional linux64-aarch64 build on Taskcluster. r=froydnj

This sets things enough things up to be able to push to try with an
opt-in, but doesn't run the job on every push. This can be used as a
template for future work on a fuzzing job.

Differential Revision: https://phabricator.services.mozilla.com/D25069

--HG--
extra : moz-landing-system : lando

browser/config/mozconfigs/linux64-aarch64/common-opt

@@ -0,0 +1,23 @@
+# This file is sourced by the nightly, beta, and release mozconfigs.
+
+. $topsrcdir/build/mozconfig.stylo
+
+ac_add_options --enable-update-channel=${MOZ_UPDATE_CHANNEL}
+ac_add_options --with-google-location-service-api-keyfile=/builds/gls-gapi.data
+ac_add_options --with-google-safebrowsing-api-keyfile=/builds/sb-gapi.data
+ac_add_options --with-mozilla-api-keyfile=/builds/mozilla-desktop-geoloc-api.key
+
+. $topsrcdir/build/unix/mozconfig.linux
+
+unset NASM
+ac_add_options --target=aarch64
+
+# Needed to enable breakpad in application.ini
+export MOZILLA_OFFICIAL=1
+
+export MOZ_TELEMETRY_REPORTING=1
+
+# Package js shell.
+export MOZ_PACKAGE_JSSHELL=1
+
+unset MOZ_STDCXX_COMPAT

browser/config/mozconfigs/linux64-aarch64/nightly

@@ -0,0 +1,7 @@
+. "$topsrcdir/browser/config/mozconfigs/linux64-aarch64/common-opt"
+
+ac_add_options --enable-verify-mar
+
+ac_add_options --with-branding=browser/branding/nightly
+
+. "$topsrcdir/build/mozconfig.common.override"

taskcluster/ci/build/linux.yml

@@ -1099,3 +1099,40 @@ linux64-add-on-devel/opt:
         - linux64-sccache
         - linux64-nasm
         - linux64-node
+
+linux64-aarch64/opt:
+    description: "Linux64 aarch64 Opt"
+    index:
+        product: firefox
+        job-name: linux64-aarch64-opt
+    attributes:
+        enable-full-crashsymbols: true
+    treeherder:
+        platform: linux64-aarch64/opt
+        symbol: B
+        tier: 2
+    worker-type: aws-provisioner-v1/gecko-{level}-b-linux
+    worker:
+        docker-image: {in-tree: debian9-arm64-build}
+        max-run-time: 7200
+    run:
+        using: mozharness
+        actions: [get-secrets, build]
+        config:
+            - builds/releng_base_firefox.py
+            - builds/releng_base_linux_64_builds.py
+        extra-config:
+            mozconfig_platform: linux64-aarch64
+        script: "mozharness/scripts/fx_desktop_build.py"
+        secrets: true
+        tooltool-downloads: public
+        need-xvfb: true
+    run-on-projects: []
+    toolchains:
+        - linux64-binutils
+        - linux64-clang
+        - linux64-rust
+        - linux64-rust-size
+        - linux64-cbindgen
+        - linux64-sccache
+        - linux64-node

taskcluster/ci/docker-image/kind.yml

@@ -155,6 +155,12 @@ jobs:
     definition: debian-build
     args:
       ARCH: amd64
+  debian9-arm64-build:
+    symbol: I(deb9-arm64)
+    parent: debian9-base
+    definition: debian-build
+    args:
+      ARCH: arm64
   android-build:
     symbol: I(agb)
     parent: debian9-base

taskcluster/ci/toolchain/rust.yml

@@ -44,6 +44,7 @@ linux64-rust-1.32:
             '--host', 'x86_64-unknown-linux-gnu',
             '--target', 'x86_64-unknown-linux-gnu',
             '--target', 'i686-unknown-linux-gnu',
+            '--target', 'aarch64-unknown-linux-gnu',
         ]
         toolchain-alias: linux64-rust