Question
C Program Linux Kernel: write system call for taking in pid (process ID) as user input and outputting the program name, running state, start time,
C Program Linux Kernel: write system call for taking in pid (process ID) as user input and outputting the program name, running state, start time, virtual runtime, and its parent processes until init.
* Implement a system call print_other to print the information for an arbitrary process. The system call takes a process pid as its argument and outputs the following information of this process:
Running state, and program name Start time and virtual runtime Its parent processes until init
HINT: You can start from the init process and iterate over all the processes. For each process, compare its pid with the target pid. If there is a match, return the pointer to this task_struct. A better approach is to use the pidhash table to look up the process in the process table. Linux provides many functions to find a task by its pid.
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started