OpenCores
URL https://opencores.org/ocsvn/openrisc/openrisc/trunk

Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [gnu-old/] [newlib-1.17.0/] [libgloss/] [sparc/] [syscalls.c] - Blame information for rev 866

Go to most recent revision | Details | Compare with Previous | View Log

Line No. Rev Author Line
1 148 jeremybenn
/* Copyright (c) 1995 Cygnus Support
2
 *
3
 * The authors hereby grant permission to use, copy, modify, distribute,
4
 * and license this software and its documentation for any purpose, provided
5
 * that existing copyright notices are retained in all copies and that this
6
 * notice is included verbatim in any distributions. No written agreement,
7
 * license, or royalty fee is required for any of the authorized uses.
8
 * Modifications to this software may be copyrighted by their authors
9
 * and need not follow the licensing terms described here, provided that
10
 * the new terms are clearly indicated on the first page of each file where
11
 * they apply.
12
 *
13
 * fake unix routines for sparclite and remote debugger
14
 * Many of these routines just substitute an appropriate error status,
15
 * if you want some kind of file system access, you'll have to fill them in...
16
 * sbrk on the other hand is functional (malloc uses it) but it doesn't do
17
 * any checking for lack of memory.
18
 * kill and _exit could get more real implementations, as well.
19
 */
20
 
21
#include <sys/stat.h>
22
 
23
int
24
fstat(int _fd, struct stat* _sbuf)
25
{
26
  /* this is used in a few places in stdio... */
27
  /* just error, so they assume a pipe */
28
  return -1;
29
}
30
 
31
int
32
isatty(int _fd)
33
{
34
  return 1;
35
}
36
 
37
int
38
close(int _fd)
39
{
40
  /* return value usually ignored anyhow */
41
  return 0;
42
}
43
 
44
int
45
open(char *filename)
46
{
47
  /* always fail */
48
  return -1;
49
}
50
 
51
int
52
getpid() {
53
  return 1;
54
}
55
 
56
int
57
kill(int pid) {
58
  /* if we knew how to nuke the board, we would... */
59
  return 0;
60
}
61
 
62
void
63
_exit(int status) {
64
  /* likewise... */
65
  return;
66
}
67
 
68
int
69
lseek(int _fd, off_t offset, int whence)
70
{
71
  /* nothing is ever seekable */
72
  return -1;
73
}
74
 
75
extern char end;
76
char*
77
sbrk(int incr)
78
{
79
  static char* base;
80
  char *b;
81
  if(!base) base = &end;
82
  b = base;
83
  base += incr;
84
  return b;
85
}

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.