Transplant grpc to arm board

One . Premise

The platform used in this project

The root file system used in this project is officially provided , use busybox To make the （ Unlike Ubuntu The root file system is so easy to use , What you want, what you need , Can't flash The relatively small ）

The key point here is glibc Version of , Because a higher version of cross compilation tool was used to compile grpc library , So I have to remake the root file system （ hole ） , Comrades who stepped on this pit please look ubuntu Root file system scheme

Two . Remake ubuntu Root file system scheme

Make ubuntu The root file system UBI Format , It is recommended to directly use official tools to create images

Reference resources ：

(330 Bar message ) AM335X How to run ubuntu System ( One ), Make _szembed The blog of -CSDN Blog

sudo mkfs.ubifs -F -q -r rootfs/ -m 4096 -e 253952 -c 1980 -o ubuntu.img

[ubifs]

mode=ubi

image=ubifs.img

vol_id=0

vol_size=100MiB

vol_type=dynamic

vol_alignment=1

vol_name=rootfs

vol_flags=autoresize

ubinize -o rootfs_ubuntu.img -O 4096 -m 4096 -p 256KiB -s 1024 ubivolume.cfg

ubuntu Ready to , transplant grpc See below for the steps

3、 ... and . Main dish ： transplant grpc

1. Reinstall the cross compiler

Download the official , then ln Making soft links

2. Cross compilation grpc

# Write a toolchain file to use for cross-compiling.
cat > /tmp/toolchain.cmake <<'EOT'
SET(CMAKE_SYSTEM_NAME Linux)
SET(CMAKE_SYSTEM_PROCESSOR arm)
set(CMAKE_STAGING_PREFIX /usr/lib/gcc-cross/arm-linux-gnueabihf/11)
set(CMAKE_C_COMPILER arm-linux-gcc)
set(CMAKE_CXX_COMPILER arm-linux-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

# Build and install gRPC for ARM.
# 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/build_arm"
pushd "cmake/build_arm"
cmake -DCMAKE_TOOLCHAIN_FILE=/tmp/toolchain.cmake \
      -DCMAKE_BUILD_TYPE=Release \
      -DCMAKE_INSTALL_PREFIX=/usr/lib/gcc-cross/arm-linux-gnueabihf/11 \
      ../..
make "-j${GRPC_CPP_DISTRIBTEST_BUILD_COMPILER_JOBS}" install
popd

# Build helloworld example for ARM.
# As above, it will find and use protoc and grpc_cpp_plugin
# for the host architecture.
mkdir -p "examples/cpp/helloworld/cmake/build_arm"
pushd "examples/cpp/helloworld/cmake/build_arm"
cmake -DCMAKE_TOOLCHAIN_FILE=/tmp/toolchain.cmake \
      -DCMAKE_BUILD_TYPE=Release \
      -Dabsl_DIR=/tmp/stage/lib/cmake/absl \
      -DProtobuf_DIR=/tmp/stage/lib/cmake/protobuf \
      -DgRPC_DIR=/tmp/stage/lib/cmake/grpc \
      ../..
make "-j${GRPC_CPP_DISTRIBTEST_BUILD_COMPILER_JOBS}"
popd

Because the official routine is statically compiled , Run right away