Zero-knock cowhide: Linux2.6 kernel source code parsing _ process traversal, zero-knock linux2.6

Zero-knock cowhide: Linux2.6 kernel source code parsing _ process traversal, zero-knock linux2.6

/*    *File    : test.c  *Author  : DavidLin       *Date    : 2014-12-07pm       *Email   : linpeng1577@163.com or linpeng1577@gmail.com       *world   : the city of SZ, in China       *Ver     : 000.000.001       *history :     editor      time            do       *          1)LinPeng       2014-12-07      created this file!       *          2)       */  #include <linux/init.h>#include <linux/list.h>#include <linux/module.h>#include <linux/sched.h>static int list_init(void){    struct task_struct *task;        task = NULL;         for_each_process(task) {        printk("pid = %d\n", task->pid);    }    return 0;}static void list_exit(void){    printk("KERNEL MACRO: for_each_process exit\n");}module_init(list_init);module_exit(list_exit);MODULE_AUTHOR("Linpeng1577");MODULE_DESCRIPTION("KERNEL 2.6 MACRO STUDY");MODULE_LICENES(GPL);

For the Makefile file and test of this routine, refer to the previous blog:

Linux Kernel programming: Starting from hello world-(1) _ C file writing

Linux Kernel programming: Starting from hello world-(2) _ Makefile file writing

Linux Kernel programming: Starting from hello world-(3) _ run

1. However, tail-n 3/var/log/messages can be changed to tail-n 100/var/log/messages;

2. ps-el lists the processes.