Subversion Repositories or1k

/* Copyright (c) 1995 Cygnus Support

 *

 * 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.

 *

 * fake unix routines for sparclite and remote debugger

 * Many of these routines just substitute an appropriate error status,

 * if you want some kind of file system access, you'll have to fill them in...

 * sbrk on the other hand is functional (malloc uses it) but it doesn't do

 * any checking for lack of memory.

 * kill and _exit could get more real implementations, as well.

 */

#include <sys/stat.h>

int

fstat(int _fd, struct stat* _sbuf)

{

  /* this is used in a few places in stdio... */

  /* just error, so they assume a pipe */

  return -1;

}

int

isatty(int _fd)

{

  return 1;

}

int

close(int _fd)

{

  /* return value usually ignored anyhow */

  return 0;

}

int

open(char *filename)

{

  /* always fail */

  return -1;

}

int

getpid() {

  return 1;

}

int

kill(int pid) {

  /* if we knew how to nuke the board, we would... */

  return 0;

}

void

_exit(int status) {

  /* likewise... */

  return;

}

int

lseek(int _fd, off_t offset, int whence)

{

  /* nothing is ever seekable */

  return -1;

}

extern char end;

char*

sbrk(int incr)

{

  static char* base;

  char *b;

  if(!base) base = &end;

  b = base;

  base += incr;

  return b;

}