1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
|
//===-- ObjectContainerBSDArchive.h -----------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef liblldb_ObjectContainerBSDArchive_h_
#define liblldb_ObjectContainerBSDArchive_h_
#include "lldb/Core/UniqueCStringMap.h"
#include "lldb/Symbol/ObjectContainer.h"
#include "lldb/Utility/ArchSpec.h"
#include "lldb/Utility/ConstString.h"
#include "lldb/Utility/FileSpec.h"
#include "llvm/Support/Chrono.h"
#include <map>
#include <memory>
#include <mutex>
class ObjectContainerBSDArchive : public lldb_private::ObjectContainer {
public:
ObjectContainerBSDArchive(const lldb::ModuleSP &module_sp,
lldb::DataBufferSP &data_sp,
lldb::offset_t data_offset,
const lldb_private::FileSpec *file,
lldb::offset_t offset, lldb::offset_t length);
~ObjectContainerBSDArchive() override;
//------------------------------------------------------------------
// Static Functions
//------------------------------------------------------------------
static void Initialize();
static void Terminate();
static lldb_private::ConstString GetPluginNameStatic();
static const char *GetPluginDescriptionStatic();
static lldb_private::ObjectContainer *
CreateInstance(const lldb::ModuleSP &module_sp, lldb::DataBufferSP &data_sp,
lldb::offset_t data_offset, const lldb_private::FileSpec *file,
lldb::offset_t offset, lldb::offset_t length);
static size_t GetModuleSpecifications(const lldb_private::FileSpec &file,
lldb::DataBufferSP &data_sp,
lldb::offset_t data_offset,
lldb::offset_t file_offset,
lldb::offset_t length,
lldb_private::ModuleSpecList &specs);
static bool MagicBytesMatch(const lldb_private::DataExtractor &data);
//------------------------------------------------------------------
// Member Functions
//------------------------------------------------------------------
bool ParseHeader() override;
size_t GetNumObjects() const override {
if (m_archive_sp)
return m_archive_sp->GetNumObjects();
return 0;
}
void Dump(lldb_private::Stream *s) const override;
lldb::ObjectFileSP GetObjectFile(const lldb_private::FileSpec *file) override;
//------------------------------------------------------------------
// PluginInterface protocol
//------------------------------------------------------------------
lldb_private::ConstString GetPluginName() override;
uint32_t GetPluginVersion() override;
protected:
struct Object {
Object();
void Clear();
lldb::offset_t Extract(const lldb_private::DataExtractor &data,
lldb::offset_t offset);
lldb_private::ConstString ar_name; // name
uint32_t ar_date; // modification time
uint16_t ar_uid; // user id
uint16_t ar_gid; // group id
uint16_t ar_mode; // octal file permissions
uint32_t ar_size; // size in bytes
lldb::offset_t ar_file_offset; // file offset in bytes from the beginning of
// the file of the object data
lldb::offset_t ar_file_size; // length of the object data
typedef std::vector<Object> collection;
typedef collection::iterator iterator;
typedef collection::const_iterator const_iterator;
};
class Archive {
public:
typedef std::shared_ptr<Archive> shared_ptr;
typedef std::multimap<lldb_private::FileSpec, shared_ptr> Map;
Archive(const lldb_private::ArchSpec &arch,
const llvm::sys::TimePoint<> &mod_time, lldb::offset_t file_offset,
lldb_private::DataExtractor &data);
~Archive();
static Map &GetArchiveCache();
static std::recursive_mutex &GetArchiveCacheMutex();
static Archive::shared_ptr FindCachedArchive(
const lldb_private::FileSpec &file, const lldb_private::ArchSpec &arch,
const llvm::sys::TimePoint<> &mod_time, lldb::offset_t file_offset);
static Archive::shared_ptr ParseAndCacheArchiveForFile(
const lldb_private::FileSpec &file, const lldb_private::ArchSpec &arch,
const llvm::sys::TimePoint<> &mod_time, lldb::offset_t file_offset,
lldb_private::DataExtractor &data);
size_t GetNumObjects() const { return m_objects.size(); }
const Object *GetObjectAtIndex(size_t idx) {
if (idx < m_objects.size())
return &m_objects[idx];
return NULL;
}
size_t ParseObjects();
Object *FindObject(const lldb_private::ConstString &object_name,
const llvm::sys::TimePoint<> &object_mod_time);
lldb::offset_t GetFileOffset() const { return m_file_offset; }
const llvm::sys::TimePoint<> &GetModificationTime() { return m_time; }
const lldb_private::ArchSpec &GetArchitecture() const { return m_arch; }
void SetArchitecture(const lldb_private::ArchSpec &arch) { m_arch = arch; }
bool HasNoExternalReferences() const;
lldb_private::DataExtractor &GetData() { return m_data; }
protected:
typedef lldb_private::UniqueCStringMap<uint32_t> ObjectNameToIndexMap;
//----------------------------------------------------------------------
// Member Variables
//----------------------------------------------------------------------
lldb_private::ArchSpec m_arch;
llvm::sys::TimePoint<> m_time;
lldb::offset_t m_file_offset;
Object::collection m_objects;
ObjectNameToIndexMap m_object_name_to_index_map;
lldb_private::DataExtractor m_data; ///< The data for this object container
///so we don't lose data if the .a files
///gets modified
};
void SetArchive(Archive::shared_ptr &archive_sp);
Archive::shared_ptr m_archive_sp;
};
#endif // liblldb_ObjectContainerBSDArchive_h_
|
