/* _getenv.c -- Implementation of the low-level _getenv() routine
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/* _getenv.c -- Implementation of the low-level _getenv() routine
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*
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*
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* Copyright (c) 2004 National Semiconductor Corporation
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* Copyright (c) 2004 National Semiconductor Corporation
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*
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*
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* The authors hereby grant permission to use, copy, modify, distribute,
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* The authors hereby grant permission to use, copy, modify, distribute,
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* and license this software and its documentation for any purpose, provided
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* and license this software and its documentation for any purpose, provided
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* that existing copyright notices are retained in all copies and that this
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* that existing copyright notices are retained in all copies and that this
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* notice is included verbatim in any distributions. No written agreement,
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* notice is included verbatim in any distributions. No written agreement,
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* license, or royalty fee is required for any of the authorized uses.
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* license, or royalty fee is required for any of the authorized uses.
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* Modifications to this software may be copyrighted by their authors
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* Modifications to this software may be copyrighted by their authors
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* and need not follow the licensing terms described here, provided that
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* and need not follow the licensing terms described here, provided that
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* the new terms are clearly indicated on the first page of each file where
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* the new terms are clearly indicated on the first page of each file where
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* they apply.
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* they apply.
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*/
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*/
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#include <sys/syscall.h>
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#include <sys/syscall.h>
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#include <stdlib.h>
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#include <stdlib.h>
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register char *R2 __asm__("r2");
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register char *R2 __asm__("r2");
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register char *R3 __asm__("r3");
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register char *R3 __asm__("r3");
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char * _getenv (const char *name)
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char * _getenv (const char *name)
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{
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{
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char *x;
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char *x;
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char *y;
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char *y;
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x = R2;
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x = R2;
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y = (char *) calloc (256, 1);
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y = (char *) calloc (256, 1);
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R3 = y;
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R3 = y;
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R2 = x;
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R2 = x;
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HOST_SERVICE (SVC_GETENV);
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HOST_SERVICE (SVC_GETENV);
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}
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}
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