Mercurial > hg > CbC > CbC_gcc
comparison gcc/config/arm/unaligned-funcs.c @ 0:a06113de4d67
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author | kent <kent@cr.ie.u-ryukyu.ac.jp> |
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date | Fri, 17 Jul 2009 14:47:48 +0900 |
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-1:000000000000 | 0:a06113de4d67 |
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1 /* EABI unaligned read/write functions. | |
2 | |
3 Copyright (C) 2005, 2009 Free Software Foundation, Inc. | |
4 Contributed by CodeSourcery, LLC. | |
5 | |
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 | |
9 later version. | |
10 | |
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. | |
15 | |
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. | |
19 | |
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/>. */ | |
24 | |
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 *); | |
29 | |
30 struct __attribute__((packed)) u4 { int data; }; | |
31 struct __attribute__((packed)) u8 { long long data; }; | |
32 | |
33 int | |
34 __aeabi_uread4 (void *ptr) | |
35 { | |
36 return ((struct u4 *) ptr)->data; | |
37 } | |
38 | |
39 int | |
40 __aeabi_uwrite4 (int data, void *ptr) | |
41 { | |
42 ((struct u4 *) ptr)->data = data; | |
43 return data; | |
44 } | |
45 | |
46 long long | |
47 __aeabi_uread8 (void *ptr) | |
48 { | |
49 return ((struct u8 *) ptr)->data; | |
50 } | |
51 | |
52 long long | |
53 __aeabi_uwrite8 (long long data, void *ptr) | |
54 { | |
55 ((struct u8 *) ptr)->data = data; | |
56 return data; | |
57 } |