4.104.114.84.95
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[ac7d5ef0] | 1 | /* task1.c |
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| 2 | * |
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| 3 | * This set of three tasks do some simple task switching for about |
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| 4 | * 15 seconds and then call a routine to "blow the stack". |
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| 5 | * |
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| 6 | * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. |
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| 7 | * On-Line Applications Research Corporation (OAR). |
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| 8 | * All rights assigned to U.S. Government, 1994. |
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| 9 | * |
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| 10 | * This material may be reproduced by or for the U.S. Government pursuant |
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| 11 | * to the copyright license under the clause at DFARS 252.227-7013. This |
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| 12 | * notice must appear in all copies of this file and its derivatives. |
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| 13 | * |
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| 14 | * $Id$ |
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| 15 | */ |
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| 16 | |
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| 17 | #include <rtems/system.h> |
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| 18 | #include <rtems/heap.h> |
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| 19 | #include <rtems/thread.h> |
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| 20 | |
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| 21 | void b() {} |
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| 22 | |
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| 23 | void blow_stack( void ) |
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| 24 | { |
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| 25 | volatile unsigned32 *low, *high; |
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| 26 | |
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| 27 | b(); |
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| 28 | /* |
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| 29 | * Destroy the first and last 16 bytes of our stack... Hope it |
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| 30 | * does not cause problems :) |
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| 31 | */ |
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| 32 | |
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| 33 | low = _Thread_Executing->Start.Initial_stack.area + HEAP_OVERHEAD; |
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| 34 | high = _Thread_Executing->Start.Initial_stack.area + |
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| 35 | _Thread_Executing->Start.Initial_stack.size - 16; |
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| 36 | |
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| 37 | low[0] = 0x11111111; |
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| 38 | low[1] = 0x22222222; |
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| 39 | low[2] = 0x33333333; |
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| 40 | low[3] = 0x44444444; |
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| 41 | |
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| 42 | high[0] = 0x55555555; |
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| 43 | high[1] = 0x66666666; |
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| 44 | high[2] = 0x77777777; |
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| 45 | high[3] = 0x88888888; |
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| 46 | |
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| 47 | } |
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