Myrunninglinuxkernel_5

git clone https://github.com/shihyu/Myrunninglinuxkernel_5.0
cd Myrunninglinuxkernel_5.0
./run_debian_arm64.sh build_kernel
sudo ./run_debian_arm64.sh build_rootfs
sudo ./run_debian_arm64_ssh.sh run

帳號: root
密碼: 123

apt-get update
apt install openssh-server vim  haveged silversearcher-ag  htop

benshushu:~# systemctl status ssh
● ssh.service - OpenBSD Secure Shell server
   Loaded: loaded (/lib/systemd/system/ssh.service; enabled; vendor preset: enab
   Active: active (running) since Tue 2021-05-25 08:29:10 UTC; 1h 54min ago
     Docs: man:sshd(8)
           man:sshd_config(5)
 Main PID: 305 (sshd)
    Tasks: 1 (limit: 4577)
   Memory: 6.1M
   CGroup: /system.slice/ssh.service
           └─305 sshd: /usr/sbin/sshd -D [listener] 0 of 10-100 startups

May 25 08:29:10 benshushu sshd[305]: Server listening on 0.0.0.0 port 22.
May 25 08:29:10 benshushu sshd[305]: Server listening on :: port 22.
May 25 08:29:10 benshushu systemd[1]: Started OpenBSD Secure Shell server.
May 25 09:19:53 benshushu sshd[629]: Accepted password for benshushu from 10.0.2
May 25 09:19:53 benshushu sshd[629]: pam_unix(sshd:session): session opened for 
May 25 09:54:57 benshushu sshd[717]: Accepted password for benshushu from 10.0.2
May 25 09:54:57 benshushu sshd[717]: pam_unix(sshd:session): session opened for 
May 25 09:54:58 benshushu sshd[717]: pam_env(sshd:session): Unable to open env f
May 25 10:04:20 benshushu sshd[1881]: Accepted password for benshushu from 10.0.
May 25 10:04:20 benshushu sshd[1881]: pam_unix(sshd:session): session opened for

在 benshushu 帳號 mkdir ~/.ssh
ssh-keygen
host 跟 qemu 互加  authorized_keys

ssh benshushu@localhost -p 6666 -v

run_debian_arm64_ssh.sh

run_qemu_debian(){
        qemu-system-aarch64 -m 8192 -cpu cortex-a57 -M virt,gic-version=3,its=on,iommu=smmuv3\
            -nographic $SMP -kernel arch/arm64/boot/Image \
            -append "noinintrd sched_debug root=/dev/vda rootfstype=ext4 rw crashkernel=256M loglevel=8" \
            -drive if=none,file=$rootfs_image,id=hd0 \
            -device virtio-blk-device,drive=hd0 \
            --fsdev local,id=kmod_dev,path=./kmodules,security_model=none \
            -device virtio-9p-pci,fsdev=kmod_dev,mount_tag=kmod_mount\
            -nic user,hostfwd=tcp::6666-:22\
            -net nic\
            $DBG

}

開放 root 登入 ssh

vim /etc/ssh/sshd_config

找到以下一行:

PermitRootLogin prohibit-password

改為:

PermitRootLogin yes

儲存檔案及離開編輯器, 重新啟動 sshd:
systemctl restart sshd

重新啟動 sshd 後, 便可以用 root 帳號發入 ssh.

gdb

sudo ./run_debian_arm64_ssh.sh run debug

$ gdb-multiarch --tui vmlinux
(gdb) set architecture aarch64           <= 设置Aarch64架构
(gdb) target remote localhost:1234       <= 通过1234端口远程连接到QEMU虚拟机
(gdb) b start_kernel
(gdb) c

本機交叉編譯

sudo apt-get install qemu qemu-system-arm gcc-aarch64-linux-gnu build-essential bison flex bc  gdb-multiarch


export ARCH=arm64
export CROSS_COMPILE=aarch64-linux-gnu-
export BASEINCLUDE=/home/shihyu/github/Myrunninglinuxkernel_5.0  # 更改成 runninglinuxkernel_5.0 根目錄

cd kmodules/rlk_lab/rlk_basic/chapter_1_quick_start/lab3_hello_world
make