QEMU安装及测试

QEMU README

QEMU is a generic and open source machine & userspace emulator and virtualizer.

QEMU官网链接：https://www.qemu.org/ ，GitHub地址：https://github.com/qemu/qemu

Install QEMU

To download and build QEMU 6.1.0:

wget https://download.qemu.org/qemu-6.1.0.tar.xz
tar xvJf qemu-6.1.0.tar.xz
cd qemu-6.1.0

在进行configure之前需要注意：1. 安装python3.6及以上版本。2. 安装GCC v7.5 or Clang v6.0及以上

./configure --prefix=/home/zgl/qemu   # --prefix指定安装路径

ERROR1：ERROR: Cannot use 'xxxx/python/bin', Python >= 3.6 is required. Use --python=/path/to/python to specify a supported Python.
解决办法：指定Python3.6，--python=/home/zgl/python3.6/bin/python3.6

ERROR2：ERROR: You need at least GCC v7.5 or Clang v6.0 (or XCode Clang v10.0)
解决办法：指定GCC或LLVM，--cc=/home/zgl/gcc8.2.0/bin/gcc --cxx=/home/zgl/gcc8.2.0/bin/g++

ERROR3： glib-2.56 gthread-2.0 is required to compile QEMU
解决办法：下载glib2.56编译安装
编译时错误1：configure: error: Python interpreter is too old
解决办法：PYTHON="/home/zgl/python3.6/bin/python3.6"
编译时错误2：configure: error: *** Could not find libmount
解决办法：--enable-libmount=no
完整编译如下：

sudo PYTHON="/home/zgl/python3.6/bin/python3.6" ./autogen.sh  --enable-libmount=no
make -j 32
sudo make install

glib问题解决回到qemu继续configure
ERROR4：ERROR: Could not detect Ninja v1.7 or newer

sudo apt install re2c
git clone git://github.com/ninja-build/ninja.git && cd ninja
./configure.py --bootstrap
sudo cp ninja /usr/bin/

此时再次清除build并进行编译：

./configure --prefix=/home/zgl/qemu --python=/home/zgl/python3.6/bin/python3.6 --cc=/home/zgl/gcc8.2.0/bin/gcc --cxx=/home/zgl/gcc8.2.0/bin/g++
make -j 4
make install

另一种安装方式：To download and build QEMU from git：

git clone https://gitlab.com/qemu-project/qemu.git
cd qemu
git submodule init
git submodule update --recursive
./configure //同上
make

Intall mips compiler

sudo apt-get install emdebian-archive-keyring
sudo apt install linux-libc-dev-mips-cross libc6-mips-cross libc-dev-mips-cross binutils-mips-linux-gnu
sudo apt install gcc-mipsel-linux-gnu g++-mipsel-linux-gnu

Test

hello.c

 #include <stdio.h>
 int main(){
     printf("Hello world\n");
     return 0;
 }

编译：mipsel-linux-gnu-gcc -O3 hello.c -o hello --static注意使用--static不然运行时可能出现qemu-mipsel: Could not open '/lib/ld.so.1': No such file or directory错误
运行：~/qemu/bin/qemu-mipsel ./hello
输出：Hello world