Last change
on this file since 499 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:
1012 bytes
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1 | /* _getenv.c -- Implementation of the low-level _getenv() routine |
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2 | * |
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3 | * Copyright (c) 2004 National Semiconductor Corporation |
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4 | * |
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5 | * The authors hereby grant permission to use, copy, modify, distribute, |
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6 | * and license this software and its documentation for any purpose, provided |
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7 | * that existing copyright notices are retained in all copies and that this |
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8 | * notice is included verbatim in any distributions. No written agreement, |
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9 | * license, or royalty fee is required for any of the authorized uses. |
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10 | * Modifications to this software may be copyrighted by their authors |
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11 | * and need not follow the licensing terms described here, provided that |
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12 | * the new terms are clearly indicated on the first page of each file where |
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13 | * they apply. |
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14 | */ |
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15 | |
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16 | #include <sys/syscall.h> |
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17 | #include <stdlib.h> |
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18 | |
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19 | register char *R2 __asm__("r2"); |
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20 | register char *R3 __asm__("r3"); |
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21 | |
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22 | char * _getenv (const char *name) |
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23 | { |
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24 | char *x; |
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25 | char *y; |
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26 | |
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27 | x = R2; |
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28 | |
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29 | y = (char *) calloc (256, 1); |
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30 | R3 = y; |
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31 | |
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32 | R2 = x; |
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33 | |
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34 | HOST_SERVICE (SVC_GETENV); |
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35 | } |
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36 | |
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