tests/markers/test-asm.c

   1 /* test-micro-loop-marker.c
   2  *
   3  * Execute a marker in a loop
   4  */
   5
   6 #include <linux/marker.h>
   7 #include <linux/module.h>
   8 #include <linux/proc_fs.h>
   9 #include <linux/sched.h>
  10 #include <asm/ptrace.h>
  11 #include <linux/timex.h>
  12 #include <linux/string.h>
  13
  14 #define NR_LOOPS 10000
  15
  16
  17 #define COPYLEN 4096
  18 char test[COPYLEN];
  19 char src[COPYLEN] = "aaaaaaaaaaaa";
  20
  21 struct proc_dir_entry *pentry = NULL;
  22
  23 static int my_open(struct inode *inode, struct file *file)
  24 {
  25         MARK(subsys_mark1, "%d %p", 1, NULL);
  26
  27         return -EPERM;
  28 }
  29
  30
  31 static struct file_operations my_operations = {
  32         .open = my_open,
  33 };
  34
  35 int init_module(void)
  36 {
  37         pentry = create_proc_entry("testmark", 0444, NULL);
  38         if (pentry)
  39                 pentry->proc_fops = &my_operations;
  40
  41         return 0;
  42 }
  43
  44 void cleanup_module(void)
  45 {
  46         remove_proc_entry("testmark", NULL);
  47 }
  48
  49 MODULE_LICENSE("GPL");
  50 MODULE_AUTHOR("Mathieu Desnoyers");
  51 MODULE_DESCRIPTION("Marker Test");
  52