8種機械鍵盤軸體對比

本人程序員，要買一個寫代碼的鍵盤，請問紅軸和茶軸怎么選？

This post will tell you how to cross compile gPRC static lib for ARM.

前段時間嘗試交叉編譯gRPC遇到了不少的麻煩，寫篇post記錄一下。

gRPC

Preparation

First of all, you should have gRPC source code. git clone it from github. Then update submodules:1

2cd grpc

git submodule update --init

Install zlib for your arm compiler[Optional]

libz is one of gRPC dependencies. If you haven’t installed it for your arm compiler yet, you may need to install it. You can get zlib at zlib Home Site. After download and unzip it, set cross compiler and build it:1

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4export CC=arm-linux-gnueabihf-gcc

export AR=arm-linux-gnueabihf-ar

./configure

make -j4

then install it if build succeed:1make install prefix=/usr/arm-linux-gnueabihf

Compile and install protobuf & gRPC for HOST

protobuf:1

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4cd grpc/third_party/protobuf

./autogen.sh && ./configure && make -j4

sudo make install -j4

sudo ldconfig

gRPC:1

2cd ..

make -j4 && sudo make install -j4 && sudo ldconfig

Cross compile static lib for ARM

make plugins first:1

2make clean

make plugins CC=arm-linux-gnueabihf-gcc -j4

Cross compile gRPC:1

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10export GRPC_CROSS_COMPILE=true

export GRPC_CROSS_AROPTS="cr --target=elf32-little"

make -j4 HAS_PKG_CONFIG=false

CC=arm-linux-gnueabihf-gcc

CXX=arm-linux-gnueabihf-g++

RANLIB=arm-linux-gnueabihf-ranlib

LD=arm-linux-gnueabihf-ld

LDXX=arm-linux-gnueabihf-g++

AR=arm-linux-gnueabihf-ar

PROTOBUF_CONFIG_OPTS="--host=arm-linux-gnueabihf --with-protoc=/usr/local/bin/protoc" static

static is important. I tried to build shared lib but there will be a lot of errors because arm-linux-gnueabihf-ld doesn’t take “-Wl” as a parameter. If build succeed, you can find your static lib at “grpc/libs/opt”.

總結

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