0.准备

虚拟机：Ubuntu 20.04

sudo apt install -y git curl gcc g++ make autoconf gtkwave

1. Clone cva6

git clone https://github.com/openhwgroup/cva6.git

cd cva6

下载子模块

git submodule update --init --recursive

可能会failed，多执行几次，直到全部下载完成

2. Set up environment

mkdir install

export RISCV="/home/jiaolong/cva6/install"

export PATH="$PATH:/home/jiaolong/cva6/install/bin"

路径更换为自己的cva6路径

export为临时更改环境变量

source ~/.bashrc

./ci/setup.sh

./ci/install-riscvpk.sh

3.安装Spike和pk

在riscv-isa-sim路径下打开终端：

apt-get install device-tree-compiler
mkdir build
cd build
../configure --prefix=$RISCV
make
[sudo] make install

在riscv-pk路径下打开终端：

mkdir build
cd build
../configure --prefix=$RISCV --host=riscv64-unknown-elf
make
make install

4.1. 编译测试

1. 编写简单测试函数add.c

   echo '
   #include <stdio.h>
   int f(int x){
           return x+3;
   }
   int main(){
           printf("hello cva6\n");
           printf("%d\n",f(3));
   }' > hello.c
   

2. 使用riscv64-unknown-elf-gcc编译RISC-V可执行文件

   riscv64-unknown-elf-gcc add.c -o add
   

3. 使用spike pk模拟运行RISC-V指令

   spike pk add
   

   

4. 使用riscv64-unknown-elf-gcc生成RISC-V指令的汇编代码

   riscv64-unknown-elf-gcc -S add.c -o add.s
   

   

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参考链接：

• https://blog.csdn.net/IT_LanTian/article/details/122324909 (opens new window)
• Hello CVA6 World! (opens new window)