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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) 1989-2012.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/stackchk.h>
#include "system.h"
void blow_stack(void)
{
Thread_Control *executing;
char *area;
volatile uintptr_t *low;
volatile uintptr_t *high;
executing = _Thread_Get_executing();
/*
* Destroy the first and last 4 words of our stack area... Hope it
* does not cause problems :)
*/
area = (char *) executing->Start.Initial_stack.area;
low = (uintptr_t *) area;
high = (uintptr_t *)
(area + executing->Start.Initial_stack.size - 4 * sizeof(*high));
low[0] = 0x11111111;
low[1] = 0x22222222;
low[2] = 0x33333333;
low[3] = 0x44444444;
high[0] = 0x55555555;
high[1] = 0x66666666;
high[2] = 0x77777777;
high[3] = 0x88888888;
rtems_stack_checker_report_usage();
}
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