Table of contents
Two, Linux installation remote debugging
Linux setting remote debugging ssh allows root login
Test host and virtual machine connections
3. Visual Studio 2019 installation
Write and debug the running program
foreword
This article mainly learns Linux kernel programming , combined with Visual Studio 2019 for cross-platform programming, including Linux + Visual Studio2019 environment configuration (Ubantu16.04) related operations
1. Ubuntu configuration
Step1：
Confirm whether the system version is Ubuntu16.04
PS: Note here, it is not the version of the virtual machine VMware!
Step2：
Modify the login authority of the root user of the Ubantu system and set the root password. The command line is as follows:
sudo passwd root
Test whether you can enter the root user. If # appears, it means that the password of the root user has been set successfully. The command line is as follows:
su root
Step3：
User login can be selected when setting login
Go to the /usr/share/lightdm/lightdm.conf.d/ directory
Open the 50-unity-greeter.conf file, the command line is as follows:
gedit 50-unity-greeter.conf
Add the following information to the open file
user-session=ubuntu
greeter-show-manual-login=true
all-guest=false
As shown below:
Step4：
Restart the system, and the input user name information will appear, as shown in the figure below:
You can see the edit box for entering the account number, enter the account root, and enter the password after entering, the password is the password entered in step 2 just now
The desktop will appear, an error was found when reading /root/.profile, and the dialog box is shown in the figure below:
Click the OK button to enter the system, use the gedit /root/.profile command to modify the file, and find mesg n
Change to: tty -s && mesg n, as shown in the figure below:
tty -s && mesg n
Before modification, as shown in the figure below:
After modification, as shown in the figure below:
Click Save in the upper right corner of the window, close the window to exit, and then restart the system again
Two, Linux installation remote debugging
PS: At this time, the Linux host must install the remote debugging service, and the installation is as follows:
sudo apt-get install openssh-server g++ gdb gdbserver
Linux setting remote debugging ssh allows root login
PS: By default, the ssh service is installed and enabled, and root is not allowed to log in, so the following steps must be completed
After installing ssh, find the ssh configuration file /etc/ssh/sshd_config
Use the terminal command gedit /etc/ssh/sshd_config command to modify the file
Find the configuration item PermitRootLoginwithout-password
Add a # on the far left to comment this line and write PermitRootLogin yes
PermitRootLogin yes
As shown below:
Test host and virtual machine connections
Enter the command ifconfig in the Ubuntu terminal to view the IP address of the Ubuntu virtual machine
Enter the command ipconfig on the win10 (or win11) CMD command line to view the host ip address
PS: The demonstration situation is that VMware uses NAT mode
The following is recorded here, as shown in the figure, our virtual machine ip: 192.168. 48 .128 host ip: 192.168. 48 .1
Both are in the 48 network segment, and the same network segment is the correct IP
When the virtual machine is turned on, test the ping connection of the Ubuntu system, and command the ping host ip in the command line of the window system
PS: If the situation shown in the above two pictures does not appear, it means that the connection is not connected. Usually, the firewall under the window system blocks the ping connection. Just turn off the window firewall
Here, Linux pings the host, and the host pings Linux are all successful!
3. Visual Studio 2019 installation
installation steps
Step 1：
Double-click to run the executable program exe to install, here is the decompression of the installation file and wait for a while
Step 2：
After waiting for a period of time, enter the system and installation file verification interface, click Continue, and continue to wait
Step 3：
After waiting for a period of time, it will automatically enter the installation interface
The part in the red box is the installation drive letter path selection, which can be customized, but remember that no Chinese characters, including Chinese symbols, can appear in the path. You need to select the plug-in part to be installed during installation. The plug-ins to be installed are listed in the following figure. , check all the following plug-ins that need to be installed
Step 4：
Set the path and plug-in and click Install to enter the following interface. Here is the time that can be consumed depending on the performance of the personal computer. My computer takes about 20 minutes. During the installation process, it needs to be connected to the Internet. After the installation, it will Prompted to restart the computer, and then we click "Restart now"
This completes the installation of vs2019! We continue to configure our cross-platform environment
create new project
Select language C++:
Select platform Linux:
We can choose an empty project or generate the default console hello program, here we choose an empty project:
Then enter the project name to create:
Configure the connector
When using VS to write a Linux program for the first time, we need to configure the connector: click Tools - Options
Click Cross-Platform - Connection Manager - Add
Enter the command ifconfig in the Ubuntu terminal to view the IP address of the Ubuntu virtual machine
Then we enter the Linux host ip, user name root, password and other information to connect:
After the installation is complete, you can connect successfully
PS: As long as the SSH service is enabled on the linux host, as long as XShell can connect to the linux host through port 22, the connection can be successful
If there are multiple IPs, be sure to select which one you want to connect to, if there is only one, just default
Write and debug the running program
Right click on the project, add a new item - add C++ source file
Next we write a normal program and generate it:
PS: The cross-platform running project can only use the debugging mode, so a breakpoint must be set in the program. Next, we set the breakpoint and start debugging the program. The right side is the Linux console window, which is the program output:
At this point, the entire Linux + Visual Studio2019 environment configuration (Ubantu16.04) related operations have been completed!
reference:
Vs2019 installation and usage tutorial (detailed) - a struggling little bird - blog garden
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