Merge pull request #5207 from avagin:arm64-cross

PiperOrigin-RevId: 350691246

3 files changed, 79 insertions, 0 deletions

diff --git a/images/arm-qemu/Dockerfile b/images/arm-qemu/Dockerfile
new file mode 100644
index 000000000..1a2ecaf42
--- /dev/null
+++ b/images/arm-qemu/Dockerfile
@@ -0,0 +1,12 @@
+FROM fedora:33
+
+RUN dnf install -y qemu-system-aarch64 gzip cpio wget
+
+WORKDIR /workdir
+RUN wget -4 http://dl-cdn.alpinelinux.org/alpine/edge/releases/aarch64/netboot/vmlinuz-lts
+RUN wget -4 http://dl-cdn.alpinelinux.org/alpine/edge/releases/aarch64/netboot/initramfs-lts
+
+COPY initramfs /workdir/initramfs
+COPY test.sh /workdir/
+
+CMD ./test.sh
diff --git a/images/arm-qemu/initramfs/init b/images/arm-qemu/initramfs/init
new file mode 100755
index 000000000..b355daadd
--- /dev/null
+++ b/images/arm-qemu/initramfs/init
@@ -0,0 +1,39 @@
+#!/bin/sh
+
+# Copyright 2020 The gVisor Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This script is started as the init process in a test virtual machine,
+# it does all required initialization steps and run a test command inside a
+# gVisor instance.
+
+set -x -e
+
+/bin/busybox mkdir -p /usr/bin /usr/sbin /proc /sys /dev /tmp
+
+/bin/busybox --install -s
+export PATH=/usr/bin:/bin:/usr/sbin:/sbin
+
+mount -t proc -o noexec,nosuid,nodev proc /proc
+mount -t sysfs -o noexec,nosuid,nodev sysfs /sys
+mount -t devtmpfs -o exec,nosuid,mode=0755,size=2M devtmpfs /dev
+
+uname -a
+/runsc --TESTONLY-unsafe-nonroot --rootless --network none --debug --alsologtostderr do uname -a
+echo "runsc exited with code $?"
+
+# Shutdown the VM. poweroff and halt doesn't work for unknown reasons.
+# qemu is started with the -no-reboot flag, so the VM will be terminated.
+reboot -f
+exit 1
diff --git a/images/arm-qemu/test.sh b/images/arm-qemu/test.sh
new file mode 100755
index 000000000..2c9336015
--- /dev/null
+++ b/images/arm-qemu/test.sh
@@ -0,0 +1,28 @@
+#!/bin/bash
+
+# Copyright 2020 The gVisor Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -xeuo pipefail -m
+
+cd initramfs
+find . | cpio -v -o -c -R root:root | gzip -9 >> ../initramfs-lts
+cd ..
+
+qemu-system-aarch64  -M virt -m 512M -cpu cortex-a57 \
+  -kernel vmlinuz-lts -initrd initramfs-lts \
+  -append "console=ttyAMA0 panic=-1" -nographic -no-reboot \
+  | tee /dev/stderr | grep "runsc exited with code 0"
+
+echo "PASS"