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Diffstat (limited to 'libgloss/cr16/_getenv.c')
-rw-r--r-- | libgloss/cr16/_getenv.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/libgloss/cr16/_getenv.c b/libgloss/cr16/_getenv.c new file mode 100644 index 000000000..c43555dfa --- /dev/null +++ b/libgloss/cr16/_getenv.c @@ -0,0 +1,36 @@ +/* _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); +} + |