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
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
|
//===-- ObjectFileMachO.h ---------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef liblldb_ObjectFileMachO_h_
#define liblldb_ObjectFileMachO_h_
// C Includes
// C++ Includes
// Other libraries and framework includes
// Project includes
#include "lldb/Utility/SafeMachO.h"
#include "lldb/Core/Address.h"
#include "lldb/Core/FileSpecList.h"
#include "lldb/Core/RangeMap.h"
#include "lldb/Host/FileSpec.h"
#include "lldb/Host/Mutex.h"
#include "lldb/Symbol/ObjectFile.h"
//----------------------------------------------------------------------
// This class needs to be hidden as eventually belongs in a plugin that
// will export the ObjectFile protocol
//----------------------------------------------------------------------
class ObjectFileMachO :
public lldb_private::ObjectFile
{
public:
ObjectFileMachO(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);
ObjectFileMachO(const lldb::ModuleSP &module_sp,
lldb::DataBufferSP& data_sp,
const lldb::ProcessSP &process_sp,
lldb::addr_t header_addr);
~ObjectFileMachO() override = default;
//------------------------------------------------------------------
// Static Functions
//------------------------------------------------------------------
static void
Initialize();
static void
Terminate();
static lldb_private::ConstString
GetPluginNameStatic();
static const char *
GetPluginDescriptionStatic();
static lldb_private::ObjectFile *
CreateInstance (const lldb::ModuleSP &module_sp,
lldb::DataBufferSP& data_sp,
lldb::offset_t data_offset,
const lldb_private::FileSpec* file,
lldb::offset_t file_offset,
lldb::offset_t length);
static lldb_private::ObjectFile *
CreateMemoryInstance (const lldb::ModuleSP &module_sp,
lldb::DataBufferSP& data_sp,
const lldb::ProcessSP &process_sp,
lldb::addr_t header_addr);
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
SaveCore (const lldb::ProcessSP &process_sp,
const lldb_private::FileSpec &outfile,
lldb_private::Error &error);
static bool
MagicBytesMatch (lldb::DataBufferSP& data_sp,
lldb::addr_t offset,
lldb::addr_t length);
//------------------------------------------------------------------
// Member Functions
//------------------------------------------------------------------
bool
ParseHeader() override;
bool
SetLoadAddress(lldb_private::Target &target,
lldb::addr_t value,
bool value_is_offset) override;
lldb::ByteOrder
GetByteOrder() const override;
bool
IsExecutable() const override;
uint32_t
GetAddressByteSize() const override;
lldb::AddressClass
GetAddressClass(lldb::addr_t file_addr) override;
lldb_private::Symtab *
GetSymtab() override;
bool
IsStripped() override;
void
CreateSections(lldb_private::SectionList &unified_section_list) override;
void
Dump(lldb_private::Stream *s) override;
bool
GetArchitecture(lldb_private::ArchSpec &arch) override;
bool
GetUUID(lldb_private::UUID* uuid) override;
uint32_t
GetDependentModules(lldb_private::FileSpecList& files) override;
lldb_private::FileSpecList
GetReExportedLibraries() override
{
return m_reexported_dylibs;
}
lldb_private::Address
GetEntryPointAddress() override;
lldb_private::Address
GetHeaderAddress() override;
uint32_t
GetNumThreadContexts() override;
lldb::RegisterContextSP
GetThreadContextAtIndex(uint32_t idx, lldb_private::Thread &thread) override;
ObjectFile::Type
CalculateType() override;
ObjectFile::Strata
CalculateStrata() override;
uint32_t
GetVersion(uint32_t *versions, uint32_t num_versions) override;
uint32_t
GetMinimumOSVersion(uint32_t *versions, uint32_t num_versions) override;
uint32_t
GetSDKVersion(uint32_t *versions, uint32_t num_versions) override;
bool
GetIsDynamicLinkEditor() override;
static bool
ParseHeader (lldb_private::DataExtractor &data,
lldb::offset_t *data_offset_ptr,
llvm::MachO::mach_header &header);
//------------------------------------------------------------------
// PluginInterface protocol
//------------------------------------------------------------------
lldb_private::ConstString
GetPluginName() override;
uint32_t
GetPluginVersion() override;
protected:
static bool
GetUUID (const llvm::MachO::mach_header &header,
const lldb_private::DataExtractor &data,
lldb::offset_t lc_offset, // Offset to the first load command
lldb_private::UUID& uuid);
static bool
GetArchitecture (const llvm::MachO::mach_header &header,
const lldb_private::DataExtractor &data,
lldb::offset_t lc_offset,
lldb_private::ArchSpec &arch);
// Intended for same-host arm device debugging where lldb needs to
// detect libraries in the shared cache and augment the nlist entries
// with an on-disk dyld_shared_cache file. The process will record
// the shared cache UUID so the on-disk cache can be matched or rejected
// correctly.
lldb_private::UUID
GetProcessSharedCacheUUID (lldb_private::Process *);
// Intended for same-host arm device debugging where lldb will read
// shared cache libraries out of its own memory instead of the remote
// process' memory as an optimization. If lldb's shared cache UUID
// does not match the process' shared cache UUID, this optimization
// should not be used.
lldb_private::UUID
GetLLDBSharedCacheUUID ();
lldb_private::Section *
GetMachHeaderSection();
lldb::addr_t
CalculateSectionLoadAddressForMemoryImage(lldb::addr_t mach_header_load_address,
const lldb_private::Section *mach_header_section,
const lldb_private::Section *section);
lldb_private::UUID
GetSharedCacheUUID (lldb_private::FileSpec dyld_shared_cache, const lldb::ByteOrder byte_order, const uint32_t addr_byte_size);
size_t
ParseSymtab();
llvm::MachO::mach_header m_header;
static const lldb_private::ConstString &GetSegmentNameTEXT();
static const lldb_private::ConstString &GetSegmentNameDATA();
static const lldb_private::ConstString &GetSegmentNameDATA_DIRTY();
static const lldb_private::ConstString &GetSegmentNameDATA_CONST();
static const lldb_private::ConstString &GetSegmentNameOBJC();
static const lldb_private::ConstString &GetSegmentNameLINKEDIT();
static const lldb_private::ConstString &GetSectionNameEHFrame();
llvm::MachO::dysymtab_command m_dysymtab;
std::vector<llvm::MachO::segment_command_64> m_mach_segments;
std::vector<llvm::MachO::section_64> m_mach_sections;
std::vector<uint32_t> m_min_os_versions;
std::vector<uint32_t> m_sdk_versions;
typedef lldb_private::RangeVector<uint32_t, uint32_t> FileRangeArray;
lldb_private::Address m_entry_point_address;
FileRangeArray m_thread_context_offsets;
bool m_thread_context_offsets_valid;
lldb_private::FileSpecList m_reexported_dylibs;
};
#endif // liblldb_ObjectFileMachO_h_
|
