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/* task1.c
*
* This set of three tasks do some simple task switching for about
* 15 seconds and then call a routine to "blow the stack".
*
* COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994.
* On-Line Applications Research Corporation (OAR).
* All rights assigned to U.S. Government, 1994.
*
* This material may be reproduced by or for the U.S. Government pursuant
* to the copyright license under the clause at DFARS 252.227-7013. This
* notice must appear in all copies of this file and its derivatives.
*
* $Id$
*/
#include <rtems.h>
void b() {}
void blow_stack( void )
{
volatile unsigned32 *low, *high;
unsigned char *area;
b();
/*
* Destroy the first and last 16 bytes of our stack... Hope it
* does not cause problems :)
*/
area = (unsigned char *)_Thread_Executing->Start.Initial_stack.area;
low = (volatile unsigned32 *) (area + HEAP_OVERHEAD);
high = (volatile unsigned32 *)
(area + _Thread_Executing->Start.Initial_stack.size - 16);
low[0] = 0x11111111;
low[1] = 0x22222222;
low[2] = 0x33333333;
low[3] = 0x44444444;
high[0] = 0x55555555;
high[1] = 0x66666666;
high[2] = 0x77777777;
high[3] = 0x88888888;
}
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