1 /* EABI unaligned read/write functions.
3 Copyright (C) 2005-2018 Free Software Foundation, Inc.
4 Contributed by CodeSourcery, LLC.
6 This file is free software; you can redistribute it and/or modify it
7 under the terms of the GNU General Public License as published by the
8 Free Software Foundation; either version 3, or (at your option) any
11 This file is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
16 Under Section 7 of GPL version 3, you are granted additional
17 permissions described in the GCC Runtime Library Exception, version
18 3.1, as published by the Free Software Foundation.
20 You should have received a copy of the GNU General Public License and
21 a copy of the GCC Runtime Library Exception along with this program;
22 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
23 <http://www.gnu.org/licenses/>. */
25 int __aeabi_uread4 (void *);
26 int __aeabi_uwrite4 (int, void *);
27 long long __aeabi_uread8 (void *);
28 long long __aeabi_uwrite8 (long long, void *);
30 struct __attribute__((packed
)) u4
{ int data
; };
31 struct __attribute__((packed
)) u8
{ long long data
; };
34 __aeabi_uread4 (void *ptr
)
36 return ((struct u4
*) ptr
)->data
;
40 __aeabi_uwrite4 (int data
, void *ptr
)
42 ((struct u4
*) ptr
)->data
= data
;
47 __aeabi_uread8 (void *ptr
)
49 return ((struct u8
*) ptr
)->data
;
53 __aeabi_uwrite8 (long long data
, void *ptr
)
55 ((struct u8
*) ptr
)->data
= data
;