环境:

• wsl2
• windows 11

步骤1 编译安装内核

去https://kernel.org/找你想要的版本，

我这里使用6.8

获取源码

wget -O- https://cdn.kernel.org/pub/linux/kernel/v6.x/linux-6.8.tar.xz
tar -xvf linux-6.8.tar.xz
cd linux-6.8
mkdir Microsoft
wget -O Microsoft/config-wsl https://github.com/microsoft/WSL2-Linux-Kernel/raw/linux-msft-wsl-6.1.y/arch/x86/configs/config-wslcd Microsoft
vim config-wsl

将下面的配置添加到config-wsl中。
在config-wsl中的CONFIG_LOCALVERSION=“xxxxxx”
里面的xxxxxxx可以修改会自己想要显示的名字

修改配置

CONFIG_BPF=y
CONFIG_BPF_SYSCALL=y
# [optional, for tc filters]
CONFIG_NET_CLS_BPF=m
# [optional, for tc actions]
CONFIG_NET_ACT_BPF=m
CONFIG_BPF_JIT=y
# [for Linux kernel versions 4.1 through 4.6]
CONFIG_HAVE_BPF_JIT=y
# [for Linux kernel versions 4.7 and later]
CONFIG_HAVE_EBPF_JIT=y
# [optional, for kprobes]
CONFIG_BPF_EVENTS=y
# Need kernel headers through /sys/kernel/kheaders.tar.xz
CONFIG_IKHEADERS=y

cd ..
vim Makefile

这里的EXTRAVERSION和NAME随便修改。

编译

yes "\n" | make -j8 KCONFIG_CONFIG=Microsoft/config-wsl

等待一段时间出现：
Kernel: arch/x86/boot/bzImage is ready
说明编译成功了。

编译成功后配置

在windows系统中的：C:\Users[你的用户名]
目录下创建.wslconfig文件。将下面内容写入文件中。

[wsl2]
kernel=D:\\kernel

确保你的系统中有D盘，不然就将上面的D和下面的d替换为你的系统中存在的盘。

cp arch/x86/boot/bzImage /mnt/d/kernel

下面的必须执行。

make modules -j8
make modules_install -j8
make install -j8

重启WSL

wsl.exe --shutdown

测试

重新打开并且查看内核版本

uname -r

出现了包含自己修改的信息。
Done.

步骤2 安装bcc

对于ubuntu参考如下：https://github.com/iovisor/bcc/blob/master/INSTALL.md#ubuntu—source

安装依赖

参考你的版本选择不同代码复制下载。

# For Focal (20.04.1 LTS)
sudo apt install -y zip bison build-essential cmake flex git libedit-dev \libllvm12 llvm-12-dev libclang-12-dev python zlib1g-dev libelf-dev libfl-dev python3-setuptools \liblzma-dev arping netperf iperf# For Hirsute (21.04) or Impish (21.10)
sudo apt install -y zip bison build-essential cmake flex git libedit-dev \libllvm12 llvm-12-dev libclang-12-dev python3 zlib1g-dev libelf-dev libfl-dev python3-setuptools \liblzma-dev arping netperf iperf# For Jammy (22.04)
sudo apt install -y zip bison build-essential cmake flex git libedit-dev \libllvm14 llvm-14-dev libclang-14-dev python3 zlib1g-dev libelf-dev libfl-dev python3-setuptools \liblzma-dev libdebuginfod-dev arping netperf iperf# For Lunar Lobster (23.04)
sudo apt install -y zip bison build-essential cmake flex git libedit-dev \libllvm15 llvm-15-dev libclang-15-dev python3 zlib1g-dev libelf-dev libfl-dev python3-setuptools \liblzma-dev libdebuginfod-dev arping netperf iperf libpolly-15-dev# For other versions
sudo apt-get -y install zip bison build-essential cmake flex git libedit-dev \libllvm3.7 llvm-3.7-dev libclang-3.7-dev python zlib1g-dev libelf-dev python3-setuptools \liblzma-dev arping netperf iperf# For Lua support
sudo apt-get -y install luajit luajit-5.1-dev

sudo apt install -y python-is-python3
sudo apt install -y bison build-essential cmake flex git libedit-dev   libllvm11 llvm-11-dev libclang-11-dev zlib1g-dev libelf-dev libfl-dev python3-distutils

下载bcc，编译

git clone https://github.com/iovisor/bcc.git
mkdir bcc/build; cd bcc/build
cmake ..
make
sudo make install
cmake -DPYTHON_CMD=python3 .. # build python3 binding
pushd src/python/
make
sudo make install
popd

测试

cd example
python3 hello_world.py

打开另外一个terminal。运行：

ping www.baidu.com

在前一个terminal中输出：

结束！！！
Done.