File: keyhack.stp

package info (click to toggle)
systemtap 5.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 47,556 kB
  • sloc: cpp: 81,117; ansic: 54,933; xml: 49,795; exp: 43,595; sh: 11,526; python: 5,003; perl: 2,252; tcl: 1,312; makefile: 1,006; javascript: 149; lisp: 105; awk: 101; asm: 91; java: 70; sed: 16
file content (15 lines) | stat: -rwxr-xr-x 293 bytes parent folder | download | duplicates (10) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
 
#! /usr/bin/env stap

# This is not useful, but it demonstrates that
# Systemtap can modify variables in a running kernel.

# Usage: ./keyhack.stp -g

probe kernel.function("kbd_event") {
  # Changes 'm' to 'b' .
  if ($event_code == 50) $event_code = 48
}

probe end {
  printf("\nDONE\n")
}