89 lines
3.0 KiB
C
89 lines
3.0 KiB
C
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/*
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* Copyright (c) 2017, University of Bristol - http://www.bris.ac.uk/
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* All rights reserved.
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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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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* 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 INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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/**
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* \file
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* Test of Contiki system's stack checker functionality
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* \author
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* Atis Elsts <atis.elsts@bristol.ac.uk>
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*/
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#include "contiki.h"
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#include "sys/stack-check.h"
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#include "random.h"
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#include <stdio.h>
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#include <string.h>
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#include <alloca.h>
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/*---------------------------------------------------------------------------*/
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PROCESS(example_process, "Stack check example");
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AUTOSTART_PROCESSES(&example_process);
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/*---------------------------------------------------------------------------*/
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static void
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nested_function(void)
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{
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printf("stack usage: %u permitted: %u\n",
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stack_check_get_usage(), stack_check_get_reserved_size());
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}
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/*---------------------------------------------------------------------------*/
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static void
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test_function(void)
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{
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void *p;
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uint16_t s;
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/* allocate and fill some random bytes */
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s = random_rand() % 1000;
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printf("allocating %u bytes on the stack\n", s);
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p = alloca(s);
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memset(p, 0, s);
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/* call the nested function to print stack usage */
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nested_function();
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}
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/*---------------------------------------------------------------------------*/
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PROCESS_THREAD(example_process, ev, data)
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{
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static struct etimer et;
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PROCESS_BEGIN();
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while(1) {
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etimer_set(&et, CLOCK_SECOND * 2);
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PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
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test_function();
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}
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PROCESS_END();
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}
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/*---------------------------------------------------------------------------*/
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