4.104.114.95
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1 | /* |
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2 | * zero the various bss areas. |
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3 | * |
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4 | * COPYRIGHT (c) 1989-1998. |
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5 | * On-Line Applications Research Corporation (OAR). |
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6 | * |
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7 | * The license and distribution terms for this file may be |
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8 | * found in the file LICENSE in this distribution or at |
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9 | * http://www.rtems.com/license/LICENSE. |
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10 | * |
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11 | * Modified to support the MCP750. |
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12 | * Modifications Copyright (C) 1999 Eric Valette. valette@crf.canon.fr |
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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 <string.h> |
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18 | |
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19 | void zero_bss(void) |
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20 | { |
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21 | /* prevent these from being accessed in the short data areas */ |
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22 | extern unsigned long __bss_start[], __SBSS_START__[], __SBSS_END__[]; |
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23 | extern unsigned long __SBSS2_START__[], __SBSS2_END__[]; |
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24 | extern unsigned long __bss_end[]; |
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25 | memset(__SBSS_START__, 0, ((unsigned) __SBSS_END__) - ((unsigned)__SBSS_START__)); |
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26 | memset(__SBSS2_START__, 0, ((unsigned) __SBSS2_END__) - ((unsigned)__SBSS2_START__)); |
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27 | memset(__bss_start, 0, ((unsigned) __bss_end) - ((unsigned)__bss_start)); |
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28 | } |
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