36 lines
1,012 B
C
36 lines
1,012 B
C
/* _getenv.c -- Implementation of the low-level _getenv() routine
|
|
*
|
|
* Copyright (c) 2004 National Semiconductor Corporation
|
|
*
|
|
* The authors hereby grant permission to use, copy, modify, distribute,
|
|
* and license this software and its documentation for any purpose, provided
|
|
* that existing copyright notices are retained in all copies and that this
|
|
* notice is included verbatim in any distributions. No written agreement,
|
|
* license, or royalty fee is required for any of the authorized uses.
|
|
* Modifications to this software may be copyrighted by their authors
|
|
* and need not follow the licensing terms described here, provided that
|
|
* the new terms are clearly indicated on the first page of each file where
|
|
* they apply.
|
|
*/
|
|
|
|
#include <sys/syscall.h>
|
|
#include <stdlib.h>
|
|
|
|
register char *R2 __asm__("r2");
|
|
register char *R3 __asm__("r3");
|
|
|
|
char * _getenv (const char *name)
|
|
{
|
|
char *x;
|
|
char *y;
|
|
|
|
x = R2;
|
|
|
|
y = (char *) calloc (256, 1);
|
|
R3 = y;
|
|
|
|
R2 = x;
|
|
|
|
HOST_SERVICE (SVC_GETENV);
|
|
}
|
|
|