File: keyhack.stp

package info (click to toggle)
systemtap 2.6-0.2
  • links: PTS, VCS
  • area: main
  • in suites: jessie, jessie-kfreebsd
  • size: 21,220 kB
  • ctags: 10,944
  • sloc: cpp: 53,239; ansic: 50,615; exp: 33,694; sh: 9,906; xml: 7,665; perl: 2,089; python: 1,534; tcl: 1,236; makefile: 797; java: 148; lisp: 104; awk: 94; asm: 91; 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")
}