Last change
on this file since 595 was
444,
checked in by satin@…, 7 years ago
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add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc
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File size:
930 bytes
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Rev | Line | |
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[444] | 1 | /* |
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| 2 | * sim-sbrk.c -- m68k sbrk support when running under the simulator. |
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| 3 | * |
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| 4 | * Copyright (c) 1995, 2001 Cygnus Support |
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| 5 | * |
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| 6 | * The authors hereby grant permission to use, copy, modify, distribute, |
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| 7 | * and license this software and its documentation for any purpose, provided |
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| 8 | * that existing copyright notices are retained in all copies and that this |
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| 9 | * notice is included verbatim in any distributions. No written agreement, |
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| 10 | * license, or royalty fee is required for any of the authorized uses. |
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| 11 | * Modifications to this software may be copyrighted by their authors |
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| 12 | * and need not follow the licensing terms described here, provided that |
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| 13 | * the new terms are clearly indicated on the first page of each file where |
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| 14 | * they apply. |
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| 15 | */ |
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| 16 | |
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| 17 | extern char _end[]; |
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| 18 | static char *curbrk = _end; |
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| 19 | |
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| 20 | char * |
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| 21 | sbrk (incr) |
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| 22 | int incr; |
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| 23 | { |
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| 24 | char *oldbrk = curbrk; |
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| 25 | curbrk += incr; |
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| 26 | if (brk (curbrk) == -1) |
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| 27 | return (char *) -1; |
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| 28 | |
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| 29 | return oldbrk; |
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| 30 | } |
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