forked from Imagelibrary/rtems
72 lines
2.3 KiB
C
72 lines
2.3 KiB
C
/* SPDX-License-Identifier: BSD-2-Clause */
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/* task1.c
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*
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* This set of three tasks do some simple task switching for about
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* 15 seconds and then call a routine to "blow the stack".
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*
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* COPYRIGHT (c) 1989-2012.
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* On-Line Applications Research Corporation (OAR).
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <rtems/stackchk.h>
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#include "system.h"
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void blow_stack(void)
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{
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Thread_Control *executing;
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char *area;
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volatile uintptr_t *low;
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volatile uintptr_t *high;
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executing = _Thread_Get_executing();
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/*
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* Destroy the first and last 4 words of our stack area... Hope it
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* does not cause problems :)
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*/
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area = (char *) executing->Start.Initial_stack.area;
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low = (uintptr_t *) area;
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high = (uintptr_t *)
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(area + executing->Start.Initial_stack.size - 4 * sizeof(*high));
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low[0] = 0x11111111;
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low[1] = 0x22222222;
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low[2] = 0x33333333;
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low[3] = 0x44444444;
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high[0] = 0x55555555;
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high[1] = 0x66666666;
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high[2] = 0x77777777;
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high[3] = 0x88888888;
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rtems_stack_checker_report_usage();
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}
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