source: rtems/testsuites/libtests/stackchk/blow.c @ ac7d5ef0

4.104.114.84.95
Last change on this file since ac7d5ef0 was ac7d5ef0, checked in by Joel Sherrill <joel.sherrill@…>, on May 11, 1995 at 5:39:37 PM

Initial revision

  • Property mode set to 100644
File size: 1.2 KB
Line 
1/*  task1.c
2 *
3 *  This set of three tasks do some simple task switching for about
4 *  15 seconds and then call a routine to "blow the stack".
5 *
6 *  COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994.
7 *  On-Line Applications Research Corporation (OAR).
8 *  All rights assigned to U.S. Government, 1994.
9 *
10 *  This material may be reproduced by or for the U.S. Government pursuant
11 *  to the copyright license under the clause at DFARS 252.227-7013.  This
12 *  notice must appear in all copies of this file and its derivatives.
13 *
14 *  $Id$
15 */
16
17#include <rtems/system.h>
18#include <rtems/heap.h>
19#include <rtems/thread.h>
20
21void b() {}
22
23void blow_stack( void )
24{
25  volatile unsigned32 *low, *high;
26
27b();
28  /*
29   *  Destroy the first and last 16 bytes of our stack... Hope it
30   *  does not cause problems :)
31   */
32
33 low  =  _Thread_Executing->Start.Initial_stack.area + HEAP_OVERHEAD;
34 high =  _Thread_Executing->Start.Initial_stack.area +
35         _Thread_Executing->Start.Initial_stack.size - 16;
36
37 low[0] = 0x11111111;
38 low[1] = 0x22222222;
39 low[2] = 0x33333333;
40 low[3] = 0x44444444;
41
42 high[0] = 0x55555555;
43 high[1] = 0x66666666;
44 high[2] = 0x77777777;
45 high[3] = 0x88888888;
46
47}
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