# 树莓派交叉编译

**Repository Path**: joqson/raspberry_crossing

## Basic Information

- **Project Name**: 树莓派交叉编译
- **Description**: 树莓派交叉编译环境搭建
- **Primary Language**: C
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 1
- **Created**: 2018-11-24
- **Last Updated**: 2023-10-31

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

 # scp hello 192.168.31.243:/home/wy

# 修改 CMakeLists.txt 直接交叉编译, 不需要用cmake-gui
## https://cmake.org/cmake/help/v3.6/manual/cmake-toolchains.7.html


# 树莓派 交叉编译环境搭建 以及 wiringPi 库交叉编译

## 1 下载 gcc-linaro-7.3.1-2018.05-x86_64_arm-linux-gnueabihf.tar.xz   

## 2 解压到home目录 下   

## 3 .bashrc中添加   
> export PATH=/home/wy/gcc-linaro-7.3.1-2018.05-x86_64_arm-linux-gnueabihf/bin:$PATH  

## 4 下载 wiringPi   
> git clone git://git.drogon.net/wiringPi   

## 5 cd wiringPI/wiringPi 将cc=gcc 中的gcc 修改为 arm-linux-gnueabihf-gcc

## 6 修改 build 只编译wiringPi库, 不安装
```
  echo
  echo "WiringPi Library"
  cd wiringPi
  $sudo make uninstall
  if [ x$1 = "xstatic" ]; then
    make -j5 static
    check_make_ok
    #屏蔽掉下面语句, 不安装
    #$sudo make install-static 
  else
    make -j5
    check_make_ok
    #屏蔽掉下面语句, 不安装
    #$sudo make install
  fi
  check_make_ok
```
## 7 运行 ./build

# 用codeblocks进行编译, 比较简单

# 用CMake构建:

## 先建立一个 CMakeLists.txt
```
cmake_minimum_required(VERSION 3.1.0)
project(hello VERSION 0.1.0)
set(CMAME_CXX_FLAGS "${CMAME_CXX_FLAGS} -fPIC")
set(CMAME_C_FLAGS "${CMAME_C_FLAGS} -fPIC")
include_directories(/home/wy/wiringPi/wiringPi)


add_executable(hello hello.c)

find_library(WP libwiringPi.so /home/wy/wiringPi/wiringPi)
message(${WP})
target_link_libraries(hello ${WP})
```

## 用cmake-gui 配置编译环境


```
Unix Makefiles
Specify native compiliers

next

添加 /home/wy/gcc-linaro-7.3.1-2018.05-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-gcc 以及 g++
```