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1 // Copyright (c) 2012, Google Inc.
2 // All rights reserved.
3 //
4 // Redistribution and use in source and binary forms, with or without
5 // modification, are permitted provided that the following conditions are
6 // met:
7 //
8 //     * Redistributions of source code must retain the above copyright
9 // notice, this list of conditions and the following disclaimer.
10 //     * Redistributions in binary form must reproduce the above
11 // copyright notice, this list of conditions and the following disclaimer
12 // in the documentation and/or other materials provided with the
13 // distribution.
14 //     * Neither the name of Google Inc. nor the names of its
15 // contributors may be used to endorse or promote products derived from
16 // this software without specific prior written permission.
17 //
18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 
30 #ifndef GOOGLE_BREAKPAD_ANDROID_INCLUDE_LINK_H
31 #define GOOGLE_BREAKPAD_ANDROID_INCLUDE_LINK_H
32 
33 /* Android doesn't provide all the data-structures required in its <link.h>.
34    Provide custom version here. */
35 #include_next <link.h>
36 
37 #include <android/api-level.h>
38 
39 // TODO(rmcilroy): Remove this file once the NDK API level is updated to at
40 // least 21 for all architectures. https://crbug.com/358831
41 
42 // These structures are only present in traditional headers at API level 21 and
43 // above. Unified headers define these structures regardless of the chosen API
44 // level. __ANDROID_API_N__ is a proxy for determining whether unified headers
45 // are in use. It’s only defined by unified headers.
46 #if __ANDROID_API__ < 21 && !defined(__ANDROID_API_N__)
47 
48 #ifdef __cplusplus
49 extern "C" {
50 #endif  // __cplusplus
51 
52 struct r_debug {
53   int              r_version;
54   struct link_map* r_map;
55   ElfW(Addr)       r_brk;
56   enum {
57     RT_CONSISTENT,
58     RT_ADD,
59     RT_DELETE }    r_state;
60   ElfW(Addr)       r_ldbase;
61 };
62 
63 struct link_map {
64   ElfW(Addr)       l_addr;
65   char*            l_name;
66   ElfW(Dyn)*       l_ld;
67   struct link_map* l_next;
68   struct link_map* l_prev;
69 };
70 
71 #ifdef __cplusplus
72 }  // extern "C"
73 #endif  // __cplusplus
74 
75 #endif  // __ANDROID_API__ < 21 && !defined(__ANDROID_API_N__)
76 
77 #endif /* GOOGLE_BREAKPAD_ANDROID_INCLUDE_LINK_H */
78