Update copyright dates with scripts/update-copyrights
[glibc.git] / sysdeps / unix / sysv / linux / arm / ioperm.c
blob8e98e6607bd8bc7640b5fdfa488034e892a17091
1 /* Copyright (C) 1998-2023 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
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.
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.
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/>. */
18 #include <shlib-compat.h>
20 #if SHLIB_COMPAT (libc, GLIBC_2_4, GLIBC_2_30)
21 # include <errno.h>
23 int
24 ioperm (unsigned long int from, unsigned long int num, int turn_on)
26 __set_errno (ENOSYS);
27 return -1;
29 compat_symbol (libc, ioperm, ioperm, GLIBC_2_4);
31 int
32 iopl (unsigned int level)
34 __set_errno (ENOSYS);
35 return -1;
37 compat_symbol (libc, iopl, iopl, GLIBC_2_4);
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. */
44 void
45 outb (unsigned char b, unsigned long int port)
48 compat_symbol (libc, outb, outb, GLIBC_2_4);
50 void
51 outw (unsigned short b, unsigned long int port)
54 compat_symbol (libc, outw, outw, GLIBC_2_4);
56 void
57 outl (unsigned int b, unsigned long int port)
60 compat_symbol (libc, outl, outl, GLIBC_2_4);
62 unsigned int
63 inb (unsigned long int port)
65 return 0;
67 compat_symbol (libc, inb, inb, GLIBC_2_4);
70 unsigned int
71 inw (unsigned long int port)
73 return 0;
75 compat_symbol (libc, inw, inw, GLIBC_2_4);
78 unsigned int
79 inl (unsigned long int port)
81 return 0;
83 compat_symbol (libc, inl, inl, GLIBC_2_4);
85 #endif /* SHLIB_COMAT */