From c8175b66c4d0f28f9a68b3505fd5a2a509bd35e6 Mon Sep 17 00:00:00 2001
From: Zack Galbreath <zack.galbreath@kitware.com>
Date: Fri, 13 Dec 2019 12:03:12 -0500
Subject: [PATCH] Add distrib test for raspberry pi build

---
 .../cpp/run_distrib_test_raspberry_pi.sh      | 92 +++++++++++++++++++
 .../artifacts/distribtest_targets.py          |  1 +
 2 files changed, 93 insertions(+)
 create mode 100755 test/distrib/cpp/run_distrib_test_raspberry_pi.sh

diff --git a/test/distrib/cpp/run_distrib_test_raspberry_pi.sh b/test/distrib/cpp/run_distrib_test_raspberry_pi.sh
new file mode 100755
index 00000000000..dbc7774aac6
--- /dev/null
+++ b/test/distrib/cpp/run_distrib_test_raspberry_pi.sh
@@ -0,0 +1,92 @@
+#!/bin/bash
+# Copyright 2017 gRPC 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 -ex
+
+cd "$(dirname "$0")/../../.."
+
+echo "deb http://archive.debian.org/debian jessie-backports main" | tee /etc/apt/sources.list.d/jessie-backports.list
+echo 'Acquire::Check-Valid-Until "false";' > /etc/apt/apt.conf
+sed -i '/deb http:\/\/deb.debian.org\/debian jessie-updates main/d' /etc/apt/sources.list
+apt-get update
+apt-get install -t jessie-backports -y git libssl-dev wget
+
+# Install CMake 3.16
+wget -q -O cmake-linux.sh https://github.com/Kitware/CMake/releases/download/v3.16.1/cmake-3.16.1-Linux-x86_64.sh
+sh cmake-linux.sh -- --skip-license --prefix=/usr
+rm cmake-linux.sh
+
+# Build and install gRPC for the host architecture.
+# We do this because we need to be able to run protoc and grpc_cpp_plugin
+# while cross-compiling.
+mkdir -p "cmake/build"
+pushd "cmake/build"
+cmake \
+  -DCMAKE_BUILD_TYPE=Release \
+  -DgRPC_INSTALL=ON \
+  -DgRPC_BUILD_TESTS=OFF \
+  -DgRPC_SSL_PROVIDER=package \
+  ../..
+make -j4 install
+popd
+
+# Download raspberry pi toolchain.
+mkdir -p "/tmp/raspberrypi_root"
+pushd "/tmp/raspberrypi_root"
+git clone https://github.com/raspberrypi/tools raspberrypi-tools
+cd raspberrypi-tools && git checkout 4a335520900ce55e251ac4f420f52bf0b2ab6b1f && cd ..
+
+# Write a toolchain file to use for cross-compiling.
+cat > toolchain.cmake <<'EOT'
+SET(CMAKE_SYSTEM_NAME Linux)
+SET(CMAKE_SYSTEM_PROCESSOR arm)
+set(devel_root /tmp/raspberrypi_root)
+set(CMAKE_STAGING_PREFIX ${devel_root}/stage)
+set(tool_root ${devel_root}/raspberrypi-tools/arm-bcm2708)
+set(CMAKE_SYSROOT ${tool_root}/arm-rpi-4.9.3-linux-gnueabihf/arm-linux-gnueabihf/sysroot)
+set(CMAKE_C_COMPILER ${tool_root}/arm-linux-gnueabihf/bin/arm-linux-gnueabihf-gcc)
+set(CMAKE_CXX_COMPILER ${tool_root}/arm-linux-gnueabihf/bin/arm-linux-gnueabihf-g++)
+set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
+set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
+EOT
+popd
+
+# Build and install gRPC for raspberry pi.
+# This build will use the host architecture copies of protoc and
+# grpc_cpp_plugin that we built earlier because we installed them
+# to a location in our PATH (/usr/local/bin).
+mkdir -p "cmake/raspberrypi_build"
+pushd "cmake/raspberrypi_build"
+cmake -DCMAKE_TOOLCHAIN_FILE=/tmp/raspberrypi_root/toolchain.cmake \
+      -DCMAKE_BUILD_TYPE=Release \
+      -DCMAKE_INSTALL_PREFIX=/tmp/raspberrypi_root/grpc_install \
+      ../..
+make -j4 install
+popd
+
+# Build helloworld example for raspberry pi.
+# As above, it will find and use protoc and grpc_cpp_plugin
+# for the host architecture.
+mkdir -p "examples/cpp/helloworld/cmake/raspberrypi_build"
+pushd "examples/cpp/helloworld/cmake/raspberrypi_build"
+cmake -DCMAKE_TOOLCHAIN_FILE=/tmp/raspberrypi_root/toolchain.cmake \
+      -DCMAKE_BUILD_TYPE=Release \
+      -DProtobuf_DIR=/tmp/raspberrypi_root/stage/lib/cmake/protobuf \
+      -DgRPC_DIR=/tmp/raspberrypi_root/stage/lib/cmake/grpc \
+      ../..
+make
+popd
diff --git a/tools/run_tests/artifacts/distribtest_targets.py b/tools/run_tests/artifacts/distribtest_targets.py
index e5ed5458932..0a5e715a916 100644
--- a/tools/run_tests/artifacts/distribtest_targets.py
+++ b/tools/run_tests/artifacts/distribtest_targets.py
@@ -303,6 +303,7 @@ def targets():
         CppDistribTest('linux', 'x64', 'jessie', 'cmake_as_submodule'),
         CppDistribTest('linux', 'x64', 'jessie', 'cmake_module_install'),
         CppDistribTest('linux', 'x64', 'jessie', 'cmake_pkgconfig'),
+        CppDistribTest('linux', 'x64', 'jessie', 'raspberry_pi'),
         CppDistribTest('windows', 'x86', testcase='cmake'),
         CppDistribTest('windows', 'x86', testcase='cmake_as_externalproject'),
         CSharpDistribTest('linux', 'x64', 'jessie'),