Last change
on this file since 451 was
444,
checked in by satin@…, 6 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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Rev | Line | |
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[444] | 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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