LLDB  mainline
ObjectContainerBSDArchive.cpp
Go to the documentation of this file.
1 //===-- ObjectContainerBSDArchive.cpp -------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
10 
11 #if defined(_WIN32) || defined(__ANDROID__)
12 // Defines from ar, missing on Windows
13 #define ARMAG "!<arch>\n"
14 #define SARMAG 8
15 #define ARFMAG "`\n"
16 
17 typedef struct ar_hdr {
18  char ar_name[16];
19  char ar_date[12];
20  char ar_uid[6], ar_gid[6];
21  char ar_mode[8];
22  char ar_size[10];
23  char ar_fmag[2];
24 } ar_hdr;
25 #else
26 #include <ar.h>
27 #endif
28 
29 #include "lldb/Core/Module.h"
30 #include "lldb/Core/ModuleSpec.h"
32 #include "lldb/Host/FileSystem.h"
33 #include "lldb/Symbol/ObjectFile.h"
34 #include "lldb/Utility/ArchSpec.h"
35 #include "lldb/Utility/Stream.h"
36 #include "lldb/Utility/Timer.h"
37 
38 #include "llvm/Support/MemoryBuffer.h"
39 
40 using namespace lldb;
41 using namespace lldb_private;
42 
44 
46  : ar_name(), modification_time(0), uid(0), gid(0), mode(0), size(0),
47  file_offset(0), file_size(0) {}
48 
50  ar_name.Clear();
51  modification_time = 0;
52  uid = 0;
53  gid = 0;
54  mode = 0;
55  size = 0;
56  file_offset = 0;
57  file_size = 0;
58 }
59 
62  lldb::offset_t offset) {
63  size_t ar_name_len = 0;
64  std::string str;
65  char *err;
66 
67  // File header
68  //
69  // The common format is as follows.
70  //
71  // Offset Length Name Format
72  // 0 16 File name ASCII right padded with spaces (no spaces
73  // allowed in file name)
74  // 16 12 File mod Decimal as cstring right padded with
75  // spaces
76  // 28 6 Owner ID Decimal as cstring right padded with
77  // spaces
78  // 34 6 Group ID Decimal as cstring right padded with
79  // spaces
80  // 40 8 File mode Octal as cstring right padded with
81  // spaces
82  // 48 10 File byte size Decimal as cstring right padded with
83  // spaces
84  // 58 2 File magic 0x60 0x0A
85 
86  // Make sure there is enough data for the file header and bail if not
87  if (!data.ValidOffsetForDataOfSize(offset, 60))
88  return LLDB_INVALID_OFFSET;
89 
90  str.assign((const char *)data.GetData(&offset, 16), 16);
91  if (llvm::StringRef(str).startswith("#1/")) {
92  // If the name is longer than 16 bytes, or contains an embedded space then
93  // it will use this format where the length of the name is here and the
94  // name characters are after this header.
95  ar_name_len = strtoul(str.c_str() + 3, &err, 10);
96  } else {
97  // Strip off any trailing spaces.
98  const size_t last_pos = str.find_last_not_of(' ');
99  if (last_pos != std::string::npos) {
100  if (last_pos + 1 < 16)
101  str.erase(last_pos + 1);
102  }
103  ar_name.SetCString(str.c_str());
104  }
105 
106  str.assign((const char *)data.GetData(&offset, 12), 12);
107  modification_time = strtoul(str.c_str(), &err, 10);
108 
109  str.assign((const char *)data.GetData(&offset, 6), 6);
110  uid = strtoul(str.c_str(), &err, 10);
111 
112  str.assign((const char *)data.GetData(&offset, 6), 6);
113  gid = strtoul(str.c_str(), &err, 10);
114 
115  str.assign((const char *)data.GetData(&offset, 8), 8);
116  mode = strtoul(str.c_str(), &err, 8);
117 
118  str.assign((const char *)data.GetData(&offset, 10), 10);
119  size = strtoul(str.c_str(), &err, 10);
120 
121  str.assign((const char *)data.GetData(&offset, 2), 2);
122  if (str == ARFMAG) {
123  if (ar_name_len > 0) {
124  const void *ar_name_ptr = data.GetData(&offset, ar_name_len);
125  // Make sure there was enough data for the string value and bail if not
126  if (ar_name_ptr == nullptr)
127  return LLDB_INVALID_OFFSET;
128  str.assign((const char *)ar_name_ptr, ar_name_len);
129  ar_name.SetCString(str.c_str());
130  }
131  file_offset = offset;
132  file_size = size - ar_name_len;
133  return offset;
134  }
135  return LLDB_INVALID_OFFSET;
136 }
137 
139  const llvm::sys::TimePoint<> &time,
140  lldb::offset_t file_offset,
142  : m_arch(arch), m_modification_time(time), m_file_offset(file_offset),
143  m_objects(), m_data(data) {}
144 
146 
148  DataExtractor &data = m_data;
149  std::string str;
150  lldb::offset_t offset = 0;
151  str.assign((const char *)data.GetData(&offset, SARMAG), SARMAG);
152  if (str == ARMAG) {
153  Object obj;
154  do {
155  offset = obj.Extract(data, offset);
156  if (offset == LLDB_INVALID_OFFSET)
157  break;
158  size_t obj_idx = m_objects.size();
159  m_objects.push_back(obj);
160  // Insert all of the C strings out of order for now...
161  m_object_name_to_index_map.Append(obj.ar_name, obj_idx);
162  offset += obj.file_size;
163  obj.Clear();
164  } while (data.ValidOffset(offset));
165 
166  // Now sort all of the object name pointers
167  m_object_name_to_index_map.Sort();
168  }
169  return m_objects.size();
170 }
171 
174  ConstString object_name, const llvm::sys::TimePoint<> &object_mod_time) {
175  const ObjectNameToIndexMap::Entry *match =
176  m_object_name_to_index_map.FindFirstValueForName(object_name);
177  if (!match)
178  return nullptr;
179  if (object_mod_time == llvm::sys::TimePoint<>())
180  return &m_objects[match->value];
181 
182  const uint64_t object_modification_date = llvm::sys::toTimeT(object_mod_time);
183  if (m_objects[match->value].modification_time == object_modification_date)
184  return &m_objects[match->value];
185 
186  const ObjectNameToIndexMap::Entry *next_match =
187  m_object_name_to_index_map.FindNextValueForName(match);
188  while (next_match) {
189  if (m_objects[next_match->value].modification_time ==
190  object_modification_date)
191  return &m_objects[next_match->value];
192  next_match = m_object_name_to_index_map.FindNextValueForName(next_match);
193  }
194 
195  return nullptr;
196 }
197 
200  const FileSpec &file, const ArchSpec &arch,
201  const llvm::sys::TimePoint<> &time, lldb::offset_t file_offset) {
202  std::lock_guard<std::recursive_mutex> guard(Archive::GetArchiveCacheMutex());
203  shared_ptr archive_sp;
204  Archive::Map &archive_map = Archive::GetArchiveCache();
205  Archive::Map::iterator pos = archive_map.find(file);
206  // Don't cache a value for "archive_map.end()" below since we might delete an
207  // archive entry...
208  while (pos != archive_map.end() && pos->first == file) {
209  bool match = true;
210  if (arch.IsValid() &&
211  !pos->second->GetArchitecture().IsCompatibleMatch(arch))
212  match = false;
213  else if (file_offset != LLDB_INVALID_OFFSET &&
214  pos->second->GetFileOffset() != file_offset)
215  match = false;
216  if (match) {
217  if (pos->second->GetModificationTime() == time) {
218  return pos->second;
219  } else {
220  // We have a file at the same path with the same architecture whose
221  // modification time doesn't match. It doesn't make sense for us to
222  // continue to use this BSD archive since we cache only the object info
223  // which consists of file time info and also the file offset and file
224  // size of any contained objects. Since this information is now out of
225  // date, we won't get the correct information if we go and extract the
226  // file data, so we should remove the old and outdated entry.
227  archive_map.erase(pos);
228  pos = archive_map.find(file);
229  continue; // Continue to next iteration so we don't increment pos
230  // below...
231  }
232  }
233  ++pos;
234  }
235  return archive_sp;
236 }
237 
240  const FileSpec &file, const ArchSpec &arch,
241  const llvm::sys::TimePoint<> &time, lldb::offset_t file_offset,
242  DataExtractor &data) {
243  shared_ptr archive_sp(new Archive(arch, time, file_offset, data));
244  if (archive_sp) {
245  const size_t num_objects = archive_sp->ParseObjects();
246  if (num_objects > 0) {
247  std::lock_guard<std::recursive_mutex> guard(
249  Archive::GetArchiveCache().insert(std::make_pair(file, archive_sp));
250  } else {
251  archive_sp.reset();
252  }
253  }
254  return archive_sp;
255 }
256 
259  static Archive::Map g_archive_map;
260  return g_archive_map;
261 }
262 
263 std::recursive_mutex &
265  static std::recursive_mutex g_archive_map_mutex;
266  return g_archive_map_mutex;
267 }
268 
270  PluginManager::RegisterPlugin(GetPluginNameStatic(),
273 }
274 
276  PluginManager::UnregisterPlugin(CreateInstance);
277 }
278 
280  static ConstString g_name("bsd-archive");
281  return g_name;
282 }
283 
285  return "BSD Archive object container reader.";
286 }
287 
289  const lldb::ModuleSP &module_sp, DataBufferSP &data_sp,
290  lldb::offset_t data_offset, const FileSpec *file,
291  lldb::offset_t file_offset, lldb::offset_t length) {
292  ConstString object_name(module_sp->GetObjectName());
293  if (!object_name)
294  return nullptr;
295 
296  if (data_sp) {
297  // We have data, which means this is the first 512 bytes of the file Check
298  // to see if the magic bytes match and if they do, read the entire table of
299  // contents for the archive and cache it
300  DataExtractor data;
301  data.SetData(data_sp, data_offset, length);
302  if (file && data_sp && ObjectContainerBSDArchive::MagicBytesMatch(data)) {
304  "ObjectContainerBSDArchive::CreateInstance (module = %s, file = "
305  "%p, file_offset = 0x%8.8" PRIx64 ", file_size = 0x%8.8" PRIx64 ")",
306  module_sp->GetFileSpec().GetPath().c_str(),
307  static_cast<const void *>(file), static_cast<uint64_t>(file_offset),
308  static_cast<uint64_t>(length));
309 
310  // Map the entire .a file to be sure that we don't lose any data if the
311  // file gets updated by a new build while this .a file is being used for
312  // debugging
313  DataBufferSP archive_data_sp =
314  FileSystem::Instance().CreateDataBuffer(*file, length, file_offset);
315  if (!archive_data_sp)
316  return nullptr;
317 
318  lldb::offset_t archive_data_offset = 0;
319 
321  *file, module_sp->GetArchitecture(), module_sp->GetModificationTime(),
322  file_offset));
323  std::unique_ptr<ObjectContainerBSDArchive> container_up(
324  new ObjectContainerBSDArchive(module_sp, archive_data_sp,
325  archive_data_offset, file, file_offset,
326  length));
327 
328  if (container_up) {
329  if (archive_sp) {
330  // We already have this archive in our cache, use it
331  container_up->SetArchive(archive_sp);
332  return container_up.release();
333  } else if (container_up->ParseHeader())
334  return container_up.release();
335  }
336  }
337  } else {
338  // No data, just check for a cached archive
340  *file, module_sp->GetArchitecture(), module_sp->GetModificationTime(),
341  file_offset));
342  if (archive_sp) {
343  std::unique_ptr<ObjectContainerBSDArchive> container_up(
344  new ObjectContainerBSDArchive(module_sp, data_sp, data_offset, file,
345  file_offset, length));
346 
347  if (container_up) {
348  // We already have this archive in our cache, use it
349  container_up->SetArchive(archive_sp);
350  return container_up.release();
351  }
352  }
353  }
354  return nullptr;
355 }
356 
358  uint32_t offset = 0;
359  const char *armag = (const char *)data.PeekData(offset, sizeof(ar_hdr));
360  if (armag && ::strncmp(armag, ARMAG, SARMAG) == 0) {
361  armag += offsetof(struct ar_hdr, ar_fmag) + SARMAG;
362  if (strncmp(armag, ARFMAG, 2) == 0)
363  return true;
364  }
365  return false;
366 }
367 
369  const lldb::ModuleSP &module_sp, DataBufferSP &data_sp,
370  lldb::offset_t data_offset, const lldb_private::FileSpec *file,
371  lldb::offset_t file_offset, lldb::offset_t size)
372  : ObjectContainer(module_sp, file, file_offset, size, data_sp, data_offset),
373  m_archive_sp() {}
375  m_archive_sp = archive_sp;
376 }
377 
379 
381  if (m_archive_sp.get() == nullptr) {
382  if (m_data.GetByteSize() > 0) {
383  ModuleSP module_sp(GetModule());
384  if (module_sp) {
386  m_file, module_sp->GetArchitecture(),
387  module_sp->GetModificationTime(), m_offset, m_data);
388  }
389  // Clear the m_data that contains the entire archive data and let our
390  // m_archive_sp hold onto the data.
391  m_data.Clear();
392  }
393  }
394  return m_archive_sp.get() != nullptr;
395 }
396 
398  s->Printf("%p: ", static_cast<const void *>(this));
399  s->Indent();
400  const size_t num_archs = GetNumArchitectures();
401  const size_t num_objects = GetNumObjects();
402  s->Printf("ObjectContainerBSDArchive, num_archs = %" PRIu64
403  ", num_objects = %" PRIu64 "",
404  (uint64_t)num_archs, (uint64_t)num_objects);
405  uint32_t i;
406  ArchSpec arch;
407  s->IndentMore();
408  for (i = 0; i < num_archs; i++) {
409  s->Indent();
410  GetArchitectureAtIndex(i, arch);
411  s->Printf("arch[%u] = %s\n", i, arch.GetArchitectureName());
412  }
413  for (i = 0; i < num_objects; i++) {
414  s->Indent();
415  s->Printf("object[%u] = %s\n", i, GetObjectNameAtIndex(i));
416  }
417  s->IndentLess();
418  s->EOL();
419 }
420 
422  ModuleSP module_sp(GetModule());
423  if (module_sp) {
424  if (module_sp->GetObjectName() && m_archive_sp) {
425  Object *object = m_archive_sp->FindObject(
426  module_sp->GetObjectName(), module_sp->GetObjectModificationTime());
427  if (object) {
428  lldb::offset_t data_offset = object->file_offset;
429  return ObjectFile::FindPlugin(
430  module_sp, file, m_offset + object->file_offset, object->file_size,
431  m_archive_sp->GetData().GetSharedDataBuffer(), data_offset);
432  }
433  }
434  }
435  return ObjectFileSP();
436 }
437 
438 // PluginInterface protocol
440  return GetPluginNameStatic();
441 }
442 
444 
446  const lldb_private::FileSpec &file, lldb::DataBufferSP &data_sp,
447  lldb::offset_t data_offset, lldb::offset_t file_offset,
448  lldb::offset_t file_size, lldb_private::ModuleSpecList &specs) {
449 
450  // We have data, which means this is the first 512 bytes of the file Check to
451  // see if the magic bytes match and if they do, read the entire table of
452  // contents for the archive and cache it
453  DataExtractor data;
454  data.SetData(data_sp, data_offset, data_sp->GetByteSize());
455  if (!file || !data_sp || !ObjectContainerBSDArchive::MagicBytesMatch(data))
456  return 0;
457 
458  const size_t initial_count = specs.GetSize();
459  llvm::sys::TimePoint<> file_mod_time = FileSystem::Instance().GetModificationTime(file);
460  Archive::shared_ptr archive_sp(
461  Archive::FindCachedArchive(file, ArchSpec(), file_mod_time, file_offset));
462  bool set_archive_arch = false;
463  if (!archive_sp) {
464  set_archive_arch = true;
465  data_sp =
466  FileSystem::Instance().CreateDataBuffer(file, file_size, file_offset);
467  if (data_sp) {
468  data.SetData(data_sp, 0, data_sp->GetByteSize());
470  file, ArchSpec(), file_mod_time, file_offset, data);
471  }
472  }
473 
474  if (archive_sp) {
475  const size_t num_objects = archive_sp->GetNumObjects();
476  for (size_t idx = 0; idx < num_objects; ++idx) {
477  const Object *object = archive_sp->GetObjectAtIndex(idx);
478  if (object) {
479  const lldb::offset_t object_file_offset =
480  file_offset + object->file_offset;
481  if (object->file_offset < file_size && file_size > object_file_offset) {
482  if (ObjectFile::GetModuleSpecifications(
483  file, object_file_offset, file_size - object_file_offset,
484  specs)) {
485  ModuleSpec &spec =
486  specs.GetModuleSpecRefAtIndex(specs.GetSize() - 1);
487  llvm::sys::TimePoint<> object_mod_time(
488  std::chrono::seconds(object->modification_time));
489  spec.GetObjectName() = object->ar_name;
490  spec.SetObjectOffset(object_file_offset);
491  spec.SetObjectSize(file_size - object_file_offset);
492  spec.GetObjectModificationTime() = object_mod_time;
493  }
494  }
495  }
496  }
497  }
498  const size_t end_count = specs.GetSize();
499  size_t num_specs_added = end_count - initial_count;
500  if (set_archive_arch && num_specs_added > 0) {
501  // The archive was created but we didn't have an architecture so we need to
502  // set it
503  for (size_t i = initial_count; i < end_count; ++i) {
504  ModuleSpec module_spec;
505  if (specs.GetModuleSpecAtIndex(i, module_spec)) {
506  if (module_spec.GetArchitecture().IsValid()) {
507  archive_sp->SetArchitecture(module_spec.GetArchitecture());
508  break;
509  }
510  }
511  }
512  }
513  return num_specs_added;
514 }
lldb_private::Stream::IndentLess
void IndentLess(unsigned amount=2)
Decrement the current indentation level.
Definition: Stream.cpp:171
LLDB_SCOPED_TIMERF
#define LLDB_SCOPED_TIMERF(...)
Definition: Timer.h:80
lldb_private::ArchSpec
Definition: ArchSpec.h:33
FileSystem.h
ModuleSpec.h
lldb_private::DataExtractor::ValidOffset
bool ValidOffset(lldb::offset_t offset) const
Test the validity of offset.
Definition: DataExtractor.h:945
ObjectContainerBSDArchive::Archive
Definition: ObjectContainerBSDArchive.h:108
ObjectContainerBSDArchive::GetModuleSpecifications
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)
Definition: ObjectContainerBSDArchive.cpp:445
ObjectContainerBSDArchive::MagicBytesMatch
static bool MagicBytesMatch(const lldb_private::DataExtractor &data)
Definition: ObjectContainerBSDArchive.cpp:357
ObjectContainerBSDArchive::Object::Clear
void Clear()
Definition: ObjectContainerBSDArchive.cpp:49
lldb_private::ModuleSpecList
Definition: ModuleSpec.h:281
ObjectContainerBSDArchive::Terminate
static void Terminate()
Definition: ObjectContainerBSDArchive.cpp:275
lldb_private::ObjectContainer
Definition: ObjectContainer.h:30
lldb_private::ModuleSpec::GetObjectName
ConstString & GetObjectName()
Definition: ModuleSpec.h:109
Module.h
ObjectContainerBSDArchive::SetArchive
void SetArchive(Archive::shared_ptr &archive_sp)
Definition: ObjectContainerBSDArchive.cpp:374
lldb_private::DataExtractor::PeekData
const uint8_t * PeekData(lldb::offset_t offset, lldb::offset_t length) const
Peek at a bytes at offset.
Definition: DataExtractor.h:821
ObjectContainerBSDArchive
Definition: ObjectContainerBSDArchive.h:24
lldb_private::ModuleSpec::SetObjectOffset
void SetObjectOffset(uint64_t object_offset)
Definition: ModuleSpec.h:115
ObjectContainerBSDArchive::GetPluginName
lldb_private::ConstString GetPluginName() override
Definition: ObjectContainerBSDArchive.cpp:439
lldb::offset_t
uint64_t offset_t
Definition: lldb-types.h:87
lldb_private::ObjectContainer::m_data
DataExtractor m_data
The data for this object file so things can be parsed lazily.
Definition: ObjectContainer.h:167
lldb_private::Stream
Definition: Stream.h:28
ObjectContainerBSDArchive::Archive::GetArchiveCache
static Map & GetArchiveCache()
Definition: ObjectContainerBSDArchive.cpp:258
ObjectContainerBSDArchive::Object
Definition: ObjectContainerBSDArchive.h:76
ObjectContainerBSDArchive::Archive::FindObject
Object * FindObject(lldb_private::ConstString object_name, const llvm::sys::TimePoint<> &object_mod_time)
Definition: ObjectContainerBSDArchive.cpp:173
ObjectContainerBSDArchive::Archive::FindCachedArchive
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)
Definition: ObjectContainerBSDArchive.cpp:199
lldb_private::ObjectContainer::GetNumArchitectures
virtual size_t GetNumArchitectures() const
Get the number of architectures in this object file.
Definition: ObjectContainer.h:113
lldb_private::DataExtractor::SetData
lldb::offset_t SetData(const void *bytes, lldb::offset_t length, lldb::ByteOrder byte_order)
Set data with a buffer that is caller owned.
Definition: DataExtractor.cpp:226
lldb_private::FileSpec
Definition: FileSpec.h:56
lldb_private::Stream::Indent
size_t Indent(llvm::StringRef s="")
Indent the current line in the stream.
Definition: Stream.cpp:130
object
LLDB_INVALID_OFFSET
#define LLDB_INVALID_OFFSET
Definition: lldb-defines.h:96
lldb_private::DataExtractor
Definition: DataExtractor.h:48
ObjectContainerBSDArchive::Archive::ParseObjects
size_t ParseObjects()
Definition: ObjectContainerBSDArchive.cpp:147
lldb_private::ModuleSpec::GetObjectModificationTime
llvm::sys::TimePoint & GetObjectModificationTime()
Definition: ModuleSpec.h:123
ObjectContainerBSDArchive::Archive::shared_ptr
std::shared_ptr< Archive > shared_ptr
Definition: ObjectContainerBSDArchive.h:110
lldb_private::ObjectContainer::m_offset
lldb::addr_t m_offset
The offset in bytes into the file, or the address in memory.
Definition: ObjectContainer.h:164
ObjectContainerBSDArchive::GetPluginVersion
uint32_t GetPluginVersion() override
Definition: ObjectContainerBSDArchive.cpp:443
ObjectContainerBSDArchive::Object::Extract
lldb::offset_t Extract(const lldb_private::DataExtractor &data, lldb::offset_t offset)
Definition: ObjectContainerBSDArchive.cpp:61
ObjectContainerBSDArchive::GetPluginDescriptionStatic
static const char * GetPluginDescriptionStatic()
Definition: ObjectContainerBSDArchive.cpp:284
ObjectContainerBSDArchive::ParseHeader
bool ParseHeader() override
Attempts to parse the object header.
Definition: ObjectContainerBSDArchive.cpp:380
lldb_private::ConstString
Definition: ConstString.h:40
ObjectContainerBSDArchive::~ObjectContainerBSDArchive
~ObjectContainerBSDArchive() override
Definition: ObjectContainerBSDArchive.cpp:378
lldb_private::ObjectContainer::GetObjectNameAtIndex
virtual const char * GetObjectNameAtIndex(uint32_t object_idx) const
Definition: ObjectContainer.h:155
Timer.h
lldb_private::ModuleSpecList::GetModuleSpecRefAtIndex
ModuleSpec & GetModuleSpecRefAtIndex(size_t i)
Definition: ModuleSpec.h:327
string
string(SUBSTRING ${p} 10 -1 pStripped) if($
Definition: Plugins/CMakeLists.txt:38
lldb_private::ArchSpec::IsValid
bool IsValid() const
Tests if this ArchSpec is valid.
Definition: ArchSpec.h:342
lldb_private::ObjectContainer::m_file
FileSpec m_file
The file that represents this container objects (which can be different from the module's file).
Definition: ObjectContainer.h:161
lldb_private::ObjectContainer::GetArchitectureAtIndex
virtual bool GetArchitectureAtIndex(uint32_t idx, ArchSpec &arch) const
Gets the architecture given an index.
Definition: ObjectContainer.h:81
ObjectFile.h
ObjectContainerBSDArchive::ObjectContainerBSDArchive
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)
Definition: ObjectContainerBSDArchive.cpp:368
ObjectContainerBSDArchive::Dump
void Dump(lldb_private::Stream *s) const override
Dump a description of this object to a Stream.
Definition: ObjectContainerBSDArchive.cpp:397
lldb_private::ModuleSpec
Definition: ModuleSpec.h:26
ObjectContainerBSDArchive::Archive::GetArchiveCacheMutex
static std::recursive_mutex & GetArchiveCacheMutex()
Definition: ObjectContainerBSDArchive.cpp:264
ObjectContainerBSDArchive::Archive::Archive
Archive(const lldb_private::ArchSpec &arch, const llvm::sys::TimePoint<> &mod_time, lldb::offset_t file_offset, lldb_private::DataExtractor &data)
Definition: ObjectContainerBSDArchive.cpp:138
lldb_private::ArchSpec::GetArchitectureName
const char * GetArchitectureName() const
Returns a static string representing the current architecture.
Definition: ArchSpec.cpp:538
ObjectContainerBSDArchive::Object::ar_name
lldb_private::ConstString ar_name
Object name in the archive.
Definition: ObjectContainerBSDArchive.h:84
uint32_t
lldb_private::Stream::IndentMore
void IndentMore(unsigned amount=2)
Increment the current indentation level.
Definition: Stream.cpp:168
ObjectContainerBSDArchive::GetNumObjects
size_t GetNumObjects() const override
Get the number of objects within this object file (archives).
Definition: ObjectContainerBSDArchive.h:60
ObjectContainerBSDArchive::Initialize
static void Initialize()
Definition: ObjectContainerBSDArchive.cpp:269
ObjectContainerBSDArchive::m_archive_sp
Archive::shared_ptr m_archive_sp
Definition: ObjectContainerBSDArchive.h:174
lldb_private::Stream::EOL
size_t EOL()
Output and End of Line character to the stream.
Definition: Stream.cpp:128
ArchSpec.h
lldb_private::ModuleChild::GetModule
lldb::ModuleSP GetModule() const
Get const accessor for the module pointer.
Definition: ModuleChild.cpp:24
PluginManager.h
lldb_private::ModuleSpec::GetArchitecture
ArchSpec & GetArchitecture()
Definition: ModuleSpec.h:95
ObjectContainerBSDArchive::Archive::ParseAndCacheArchiveForFile
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)
Definition: ObjectContainerBSDArchive.cpp:239
lldb_private::Stream::Printf
size_t Printf(const char *format,...) __attribute__((format(printf
Output printf formatted output to the stream.
Definition: Stream.cpp:107
ObjectContainerBSDArchive::GetObjectFile
lldb::ObjectFileSP GetObjectFile(const lldb_private::FileSpec *file) override
Selects an architecture in an object file.
Definition: ObjectContainerBSDArchive.cpp:421
ObjectContainerBSDArchive::Archive::Map
std::multimap< lldb_private::FileSpec, shared_ptr > Map
Definition: ObjectContainerBSDArchive.h:111
lldb_private::ModuleSpec::SetObjectSize
void SetObjectSize(uint64_t object_size)
Definition: ModuleSpec.h:121
ObjectContainerBSDArchive::Object::file_size
lldb::offset_t file_size
Length of the object data.
Definition: ObjectContainerBSDArchive.h:105
ObjectContainerBSDArchive::Object::file_offset
lldb::offset_t file_offset
File offset in bytes from the beginning of the file of the object data.
Definition: ObjectContainerBSDArchive.h:102
lldb_private
A class that represents a running process on the host machine.
Definition: SBCommandInterpreterRunOptions.h:16
ObjectContainerBSDArchive::GetPluginNameStatic
static lldb_private::ConstString GetPluginNameStatic()
Definition: ObjectContainerBSDArchive.cpp:279
lldb_private::ModuleSpecList::GetModuleSpecAtIndex
bool GetModuleSpecAtIndex(size_t i, ModuleSpec &module_spec) const
Definition: ModuleSpec.h:329
Entry
FormatEntity::Entry Entry
Definition: FormatEntity.cpp:82
lldb_private::DataExtractor::Clear
void Clear()
Clears the object state.
Definition: DataExtractor.cpp:195
lldb_private::DataExtractor::GetData
const void * GetData(lldb::offset_t *offset_ptr, lldb::offset_t length) const
Extract length bytes from *offset_ptr.
Definition: DataExtractor.h:326
lldb_private::ModuleSpecList::GetSize
size_t GetSize() const
Definition: ModuleSpec.h:304
Stream.h
LLDB_PLUGIN_DEFINE
#define LLDB_PLUGIN_DEFINE(PluginName)
Definition: PluginManager.h:31
ObjectContainerBSDArchive::Archive::~Archive
~Archive()
Definition: ObjectContainerBSDArchive.cpp:145
lldb_private::DataExtractor::GetByteSize
uint64_t GetByteSize() const
Get the number of bytes contained in this object.
Definition: DataExtractor.h:259
ObjectContainerBSDArchive.h
lldb_private::DataExtractor::ValidOffsetForDataOfSize
bool ValidOffsetForDataOfSize(lldb::offset_t offset, lldb::offset_t length) const
Test the availability of length bytes of data from offset.
Definition: DataExtractor.h:954
lldb
Definition: SBAddress.h:15
ObjectContainerBSDArchive::CreateInstance
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)
Definition: ObjectContainerBSDArchive.cpp:288