# arm_compiler

**Repository Path**: ningdro/arm_compiler

## Basic Information

- **Project Name**: arm_compiler
- **Description**: cmake vcpkg 交叉编译arm
- **Primary Language**: Unknown
- **License**: GPL-2.0
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 1
- **Forks**: 1
- **Created**: 2022-01-13
- **Last Updated**: 2024-10-31

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# WSL vcpkg arm 交叉编译环境

### 目标系统的编译工具
```bash
ningdr@ubuntu$ apt-cache search aarch64
ningdr@ubuntu$ sudo apt install -y gcc-10-aarch64-linux-gnu
ningdr@ubuntu$ sudo apt install -y g++-10-aarch64-linux-gnu
```
### 编写cmake文件
```cmake
set(CMAKE_SYSTEM_NAME Linux)
set(CMAKE_SYSTEM_PROCESSOR arm)
set(CMAKE_C_COMPILER /usr/bin/aarch64-linux-gnu-gcc-10)
set(CMAKE_CXX_COMPILER /usr/bin/aarch64-linux-gnu-g++-10)
```
### vcpkg 安装包
```shell
# triplet 位于 ${vcpkg_root}/triplet/community/arm64-linux.cmake
ningdr@ubuntu$  ./vcpkg install --triplet=arm64-linux spdlog
```
### Clion cmake 设置
添加配置参数：
```shell
cmake .. -DCMAKE_TOOLCHAIN_FILE=/mnt/e/workspace-clion/cmake_vcpkg/vcpkg/vcpkg/scripts/buildsystems/vcpkg.cmake -DVCPKG_TARGET_TRIPLET=arm64-linux
```
![img.png](img/clion_cmake.png)

### 交叉编译 opencv
#### opencv 使用 cuda 硬解码，需要下载[nvidia-video-codec-sdk](https://developer.nvidia.com/nvidia-video-codec-sdk/download)，然后将头文件和库文件拷贝到cuda目录下
```shell
vim /mnt/d/clibs/opencv/git-src/opencv-4.5.4/platforms/linux/aarch64-gnu.toolchain.cmake
======================file content========================
set(CMAKE_SYSTEM_PROCESSOR aarch64)
set(GCC_COMPILER_VERSION "" CACHE STRING "GCC Compiler version")
set(GNU_MACHINE "aarch64-linux-gnu" CACHE STRING "GNU compiler triple")
set(CMAKE_C_COMPILER /usr/bin/aarch64-linux-gnu-gcc-10)
set(CMAKE_CXX_COMPILER /usr/bin/aarch64-linux-gnu-g++-10)
include("/home/ningdr/soft/vcpkg/scripts/buildsystems/vcpkg.cmake")
set(VCPKG_TARGET_TRIPLET arm64-linux)

include("${CMAKE_CURRENT_LIST_DIR}/arm.toolchain.cmake")
======================file content========================

cmake \
-D CMAKE_TOOLCHAIN_FILE=/mnt/d/clibs/opencv/git-src/opencv-4.5.4/platforms/linux/aarch64-gnu.toolchain.cmake \
-D WITH_CUDA=ON \
-D WITH_NVCUVID=ON \
-D WITH_GSTREAMER=ON \
-D OPENCV_EXTRA_MODULES_PATH=/mnt/d/clibs/opencv/git-src/opencv_contrib-4.5.4/modules \
-D INSTALL_PYTHON_EXAMPLES=OFF \
-D INSTALL_C_EXAMPLES=OFF \
-D BUILD_EXAMPLES=OFF \
-D CMAKE_C_COMPILER=/usr/bin/aarch64-linux-gnu-gcc-10 \
-D CMAKE_CXX_COMPILER=/usr/bin/aarch64-linux-gnu-g++-10 \
-D CMAKE_MAKE_PROGRAM:PATH=/usr/bin/make \
-D CMAKE_INSTALL_PREFIX=/mnt/d/clibs/opencv/aarch64-4.5.4 \
..
```