1 /*
2  * Copyright (C) 2016 The Android Open Source Project
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
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 copyright
11  *    notice, this list of conditions and the following disclaimer in
12  *    the documentation and/or other materials provided with the
13  *    distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 
29 #ifndef __LINKER_COMMON_TYPES_H
30 #define __LINKER_COMMON_TYPES_H
31 
32 #include <android/dlext.h>
33 #include "linked_list.h"
34 
35 // TODO(dimitry): move this to linker_defines.h? Unless it is removed by
36 // consequent refactoring steps.
37 
38 // Android uses RELA for aarch64 and x86_64. mips64 still uses REL.
39 #if defined(__aarch64__) || defined(__x86_64__)
40 #define USE_RELA 1
41 #endif
42 
43 
44 struct soinfo;
45 
46 class SoinfoListAllocator {
47  public:
48   static LinkedListEntry<soinfo>* alloc();
49   static void free(LinkedListEntry<soinfo>* entry);
50 
51  private:
52   // unconstructable
53   DISALLOW_IMPLICIT_CONSTRUCTORS(SoinfoListAllocator);
54 };
55 
56 class NamespaceListAllocator {
57  public:
58   static LinkedListEntry<android_namespace_t>* alloc();
59   static void free(LinkedListEntry<android_namespace_t>* entry);
60 
61  private:
62   // unconstructable
63   DISALLOW_IMPLICIT_CONSTRUCTORS(NamespaceListAllocator);
64 };
65 
66 typedef LinkedList<soinfo, SoinfoListAllocator> soinfo_list_t;
67 typedef LinkedList<android_namespace_t, NamespaceListAllocator> android_namespace_list_t;
68 
69 #endif  /* __LINKER_COMMON_TYPES_H */
70