1 /* libunwind - a platform-independent unwind library
2 Copyright (C) 2003 Hewlett-Packard Co
3 Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
4
5 Modified for x86_64 by Max Asbock <masbock@us.ibm.com>
6 Copyright (C) 2012 Tommi Rantala <tt.rantala@gmail.com>
7 Modified for s390x by Michael Munday <mike.munday@ibm.com>
8
9 This file is part of libunwind.
10
11 Permission is hereby granted, free of charge, to any person obtaining
12 a copy of this software and associated documentation files (the
13 "Software"), to deal in the Software without restriction, including
14 without limitation the rights to use, copy, modify, merge, publish,
15 distribute, sublicense, and/or sell copies of the Software, and to
16 permit persons to whom the Software is furnished to do so, subject to
17 the following conditions:
18
19 The above copyright notice and this permission notice shall be
20 included in all copies or substantial portions of the Software.
21
22 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
23 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
24 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
25 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
26 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
27 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
28 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
29
30 #include <stdlib.h>
31
32 #include "unwind_i.h"
33
34 unw_addr_space_t
unw_create_addr_space(unw_accessors_t * a,int byte_order)35 unw_create_addr_space (unw_accessors_t *a, int byte_order)
36 {
37 #ifdef UNW_LOCAL_ONLY
38 return NULL;
39 #else
40 unw_addr_space_t as;
41
42 /*
43 * s390x supports only big-endian.
44 */
45 if (byte_order != 0 && byte_order != UNW_BIG_ENDIAN)
46 return NULL;
47
48 as = malloc (sizeof (*as));
49 if (!as)
50 return NULL;
51
52 memset (as, 0, sizeof (*as));
53
54 as->acc = *a;
55
56 return as;
57 #endif
58 }
59