86 lines
1.8 KiB
C
86 lines
1.8 KiB
C
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/* Copyright (c) 1995 Cygnus Support
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*
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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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* 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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* 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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* 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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* they apply.
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*
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* fake unix routines for sparclite and remote debugger
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* Many of these routines just substitute an appropriate error status,
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* if you want some kind of file system access, you'll have to fill them in...
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* sbrk on the other hand is functional (malloc uses it) but it doesn't do
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* any checking for lack of memory.
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* kill and _exit could get more real implementations, as well.
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*/
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#include <sys/stat.h>
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int
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fstat(int _fd, struct stat* _sbuf)
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{
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/* this is used in a few places in stdio... */
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/* just error, so they assume a pipe */
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return -1;
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}
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int
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isatty(int _fd)
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{
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return 1;
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}
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int
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close(int _fd)
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{
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/* return value usually ignored anyhow */
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return 0;
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}
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int
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open(char *filename)
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{
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/* always fail */
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return -1;
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}
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int
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getpid() {
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return 1;
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}
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int
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kill(int pid) {
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/* if we knew how to nuke the board, we would... */
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return 0;
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}
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void
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_exit(int status) {
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/* likewise... */
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return;
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}
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int
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lseek(int _fd, off_t offset, int whence)
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{
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/* nothing is ever seekable */
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return -1;
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}
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extern char end;
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char*
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sbrk(int incr)
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{
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static char* base;
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char *b;
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if(!base) base = &end;
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b = base;
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base += incr;
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return b;
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}
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