1 /* Copyright (C) 1998-2022 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library. If not, see
16 <https://www.gnu.org/licenses/>. */
17
18 #include <shlib-compat.h>
19
20 #if SHLIB_COMPAT (libc, GLIBC_2_4, GLIBC_2_30)
21 # include <errno.h>
22
23 int
ioperm(unsigned long int from,unsigned long int num,int turn_on)24 ioperm (unsigned long int from, unsigned long int num, int turn_on)
25 {
26 __set_errno (ENOSYS);
27 return -1;
28 }
29 compat_symbol (libc, ioperm, ioperm, GLIBC_2_4);
30
31 int
iopl(unsigned int level)32 iopl (unsigned int level)
33 {
34 __set_errno (ENOSYS);
35 return -1;
36 }
37 compat_symbol (libc, iopl, iopl, GLIBC_2_4);
38
39
40 /* The remaining functions do not have any way to indicate failure.
41 However, it is only valid to call them after calling ioperm/iopl,
42 which will have indicated failure. */
43
44 void
outb(unsigned char b,unsigned long int port)45 outb (unsigned char b, unsigned long int port)
46 {
47 }
48 compat_symbol (libc, outb, outb, GLIBC_2_4);
49
50 void
outw(unsigned short b,unsigned long int port)51 outw (unsigned short b, unsigned long int port)
52 {
53 }
54 compat_symbol (libc, outw, outw, GLIBC_2_4);
55
56 void
outl(unsigned int b,unsigned long int port)57 outl (unsigned int b, unsigned long int port)
58 {
59 }
60 compat_symbol (libc, outl, outl, GLIBC_2_4);
61
62 unsigned int
inb(unsigned long int port)63 inb (unsigned long int port)
64 {
65 return 0;
66 }
67 compat_symbol (libc, inb, inb, GLIBC_2_4);
68
69
70 unsigned int
inw(unsigned long int port)71 inw (unsigned long int port)
72 {
73 return 0;
74 }
75 compat_symbol (libc, inw, inw, GLIBC_2_4);
76
77
78 unsigned int
inl(unsigned long int port)79 inl (unsigned long int port)
80 {
81 return 0;
82 }
83 compat_symbol (libc, inl, inl, GLIBC_2_4);
84
85 #endif /* SHLIB_COMAT */
86