SectionLoadList.h revision 49480b158ee907f30afea651d2c81a67b5dbc971 
1//===-- SectionLoadList.h -----------------------------------------------*- C++ -*-===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef liblldb_SectionLoadList_h_
11#define liblldb_SectionLoadList_h_
12
13// C Includes
14// C++ Includes
15// Other libraries and framework includes
16// Project includes
17#include "lldb/lldb-include.h"
18#include "lldb/Core/ThreadSafeSTLMap.h"
19
20namespace lldb_private {
21
22class SectionLoadList
23{
24public:
25    //------------------------------------------------------------------
26    // Constructors and Destructors
27    //------------------------------------------------------------------
28    SectionLoadList () :
29        m_section_load_info ()
30    {
31    }
32
33    ~SectionLoadList()
34    {
35    }
36
37    bool
38    IsEmpty() const;
39
40    void
41    Clear ();
42
43    lldb::addr_t
44    GetSectionLoadAddress (const Section *section) const;
45
46    bool
47    ResolveLoadAddress (lldb::addr_t load_addr, Address &so_addr) const;
48
49    bool
50    SetSectionLoadAddress (const Section *section, lldb::addr_t load_addr);
51
52    // The old load address should be specified when unloading to ensure we get
53    // the correct instance of the section as a shared library could be loaded
54    // at more than one location.
55    bool
56    SetSectionUnloaded (const Section *section, lldb::addr_t load_addr);
57
58    // Unload all instances of a section. This function can be used on systems
59    // that don't support multiple copies of the same shared library to be
60    // loaded at the same time.
61    size_t
62    SetSectionUnloaded (const Section *section);
63
64
65protected:
66    typedef ThreadSafeSTLMap<lldb::addr_t, const Section *> collection;
67    collection m_section_load_info;    ///< A mapping of all currently loaded sections.
68
69private:
70    DISALLOW_COPY_AND_ASSIGN (SectionLoadList);
71};
72
73} // namespace lldb_private
74
75#endif  // liblldb_SectionLoadList_h_
76