forked from Imagelibrary/rtems
ba6f945a7e
* stackchk/blow.c, stackchk/stackchk.scn: Print a stack check report before blowing stack.
51 lines
1.2 KiB
C
51 lines
1.2 KiB
C
/* 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) 1989-1999.
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* On-Line Applications Research Corporation (OAR).
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.com/license/LICENSE.
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*
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* $Id$
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*/
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#include <rtems.h>
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#include <rtems/stackchk.h>
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void b(void) {}
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void blow_stack( void )
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{
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volatile uint32_t *low, *high;
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unsigned char *area;
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b();
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/*
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* Destroy the first and last 16 bytes of our stack... Hope it
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* does not cause problems :)
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*/
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area = (unsigned char *)_Thread_Executing->Start.Initial_stack.area;
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/* Look in the stack checker implementation for this magic offset */
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low = (volatile uint32_t *) \
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(area + sizeof(Heap_Block) - HEAP_BLOCK_HEADER_SIZE);
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high = (volatile uint32_t *)
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(area + _Thread_Executing->Start.Initial_stack.size - 16);
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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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