1 /* libunwind - a platform-independent unwind library
2 Copyright (C) 2001-2002, 2005 Hewlett-Packard Co
3 Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
4
5 This file is part of libunwind.
6
7 Permission is hereby granted, free of charge, to any person obtaining
8 a copy of this software and associated documentation files (the
9 "Software"), to deal in the Software without restriction, including
10 without limitation the rights to use, copy, modify, merge, publish,
11 distribute, sublicense, and/or sell copies of the Software, and to
12 permit persons to whom the Software is furnished to do so, subject to
13 the following conditions:
14
15 The above copyright notice and this permission notice shall be
16 included in all copies or substantial portions of the Software.
17
18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
19 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
21 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
22 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
23 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
24 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
25
26 #include "libunwind_i.h"
27
28 #ifdef UNW_REMOTE_ONLY
29
30 static inline int
local_find_proc_info(unw_addr_space_t as,unw_word_t ip,unw_proc_info_t * pi,int need_unwind_info,void * arg)31 local_find_proc_info (unw_addr_space_t as, unw_word_t ip, unw_proc_info_t *pi,
32 int need_unwind_info, void *arg)
33 {
34 return -UNW_ENOINFO;
35 }
36
37 #else /* !UNW_REMOTE_ONLY */
38
39 static inline int
local_find_proc_info(unw_addr_space_t as,unw_word_t ip,unw_proc_info_t * pi,int need_unwind_info,void * arg)40 local_find_proc_info (unw_addr_space_t as, unw_word_t ip, unw_proc_info_t *pi,
41 int need_unwind_info, void *arg)
42 {
43 unw_dyn_info_list_t *list;
44 unw_dyn_info_t *di;
45
46 #ifndef UNW_LOCAL_ONLY
47 # pragma weak _U_dyn_info_list_addr
48 if (!_U_dyn_info_list_addr)
49 return -UNW_ENOINFO;
50 #endif
51
52 list = (unw_dyn_info_list_t *) (uintptr_t) _U_dyn_info_list_addr ();
53 for (di = list->first; di; di = di->next)
54 if (ip >= di->start_ip && ip < di->end_ip)
55 return unwi_extract_dynamic_proc_info (as, ip, pi, di, need_unwind_info,
56 arg);
57 return -UNW_ENOINFO;
58 }
59
60 #endif /* !UNW_REMOTE_ONLY */
61
62 #ifdef UNW_LOCAL_ONLY
63
64 static inline int
remote_find_proc_info(unw_addr_space_t as,unw_word_t ip,unw_proc_info_t * pi,int need_unwind_info,void * arg)65 remote_find_proc_info (unw_addr_space_t as, unw_word_t ip, unw_proc_info_t *pi,
66 int need_unwind_info, void *arg)
67 {
68 return -UNW_ENOINFO;
69 }
70
71 #else /* !UNW_LOCAL_ONLY */
72
73 static inline int
remote_find_proc_info(unw_addr_space_t as,unw_word_t ip,unw_proc_info_t * pi,int need_unwind_info,void * arg)74 remote_find_proc_info (unw_addr_space_t as, unw_word_t ip, unw_proc_info_t *pi,
75 int need_unwind_info, void *arg)
76 {
77 return unwi_dyn_remote_find_proc_info (as, ip, pi, need_unwind_info, arg);
78 }
79
80 #endif /* !UNW_LOCAL_ONLY */
81
82 HIDDEN int
unwi_find_dynamic_proc_info(unw_addr_space_t as,unw_word_t ip,unw_proc_info_t * pi,int need_unwind_info,void * arg)83 unwi_find_dynamic_proc_info (unw_addr_space_t as, unw_word_t ip,
84 unw_proc_info_t *pi, int need_unwind_info,
85 void *arg)
86 {
87 if (as == unw_local_addr_space)
88 return local_find_proc_info (as, ip, pi, need_unwind_info, arg);
89 else
90 return remote_find_proc_info (as, ip, pi, need_unwind_info, arg);
91 }
92