1 //===-- ObjectFile.cpp ------------------------------------------*- 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 #include "lldb/lldb-private.h"
11 #include "lldb/lldb-private-log.h"
12 #include "lldb/Core/DataBuffer.h"
13 #include "lldb/Core/DataBufferHeap.h"
14 #include "lldb/Core/Log.h"
15 #include "lldb/Core/Module.h"
16 #include "lldb/Core/ModuleSpec.h"
17 #include "lldb/Core/PluginManager.h"
18 #include "lldb/Core/RegularExpression.h"
19 #include "lldb/Core/Section.h"
20 #include "lldb/Core/Timer.h"
21 #include "lldb/Symbol/ObjectFile.h"
22 #include "lldb/Symbol/ObjectContainer.h"
23 #include "lldb/Symbol/SymbolFile.h"
24 #include "lldb/Target/Process.h"
25 #include "Plugins/ObjectContainer/BSD-Archive/ObjectContainerBSDArchive.h"
26
27 using namespace lldb;
28 using namespace lldb_private;
29
30 ObjectFileSP
FindPlugin(const lldb::ModuleSP & module_sp,const FileSpec * file,lldb::offset_t file_offset,lldb::offset_t file_size,DataBufferSP & data_sp,lldb::offset_t & data_offset)31 ObjectFile::FindPlugin (const lldb::ModuleSP &module_sp,
32 const FileSpec* file,
33 lldb::offset_t file_offset,
34 lldb::offset_t file_size,
35 DataBufferSP &data_sp,
36 lldb::offset_t &data_offset)
37 {
38 ObjectFileSP object_file_sp;
39
40 if (module_sp)
41 {
42 Timer scoped_timer (__PRETTY_FUNCTION__,
43 "ObjectFile::FindPlugin (module = %s, file = %p, file_offset = 0x%8.8" PRIx64 ", file_size = 0x%8.8" PRIx64 ")",
44 module_sp->GetFileSpec().GetPath().c_str(),
45 file, (uint64_t) file_offset, (uint64_t) file_size);
46 if (file)
47 {
48 FileSpec archive_file;
49 ObjectContainerCreateInstance create_object_container_callback;
50
51 const bool file_exists = file->Exists();
52 if (!data_sp)
53 {
54 // We have an object name which most likely means we have
55 // a .o file in a static archive (.a file). Try and see if
56 // we have a cached archive first without reading any data
57 // first
58 if (file_exists && module_sp->GetObjectName())
59 {
60 for (uint32_t idx = 0; (create_object_container_callback = PluginManager::GetObjectContainerCreateCallbackAtIndex(idx)) != NULL; ++idx)
61 {
62 std::unique_ptr<ObjectContainer> object_container_ap(create_object_container_callback(module_sp, data_sp, data_offset, file, file_offset, file_size));
63
64 if (object_container_ap.get())
65 object_file_sp = object_container_ap->GetObjectFile(file);
66
67 if (object_file_sp.get())
68 return object_file_sp;
69 }
70 }
71 // Ok, we didn't find any containers that have a named object, now
72 // lets read the first 512 bytes from the file so the object file
73 // and object container plug-ins can use these bytes to see if they
74 // can parse this file.
75 if (file_size > 0)
76 {
77 data_sp = file->ReadFileContents(file_offset, std::min<size_t>(512, file_size));
78 data_offset = 0;
79 }
80 }
81
82 if (!data_sp || data_sp->GetByteSize() == 0)
83 {
84 // Check for archive file with format "/path/to/archive.a(object.o)"
85 char path_with_object[PATH_MAX*2];
86 module_sp->GetFileSpec().GetPath(path_with_object, sizeof(path_with_object));
87
88 ConstString archive_object;
89 const bool must_exist = true;
90 if (ObjectFile::SplitArchivePathWithObject (path_with_object, archive_file, archive_object, must_exist))
91 {
92 file_size = archive_file.GetByteSize();
93 if (file_size > 0)
94 {
95 file = &archive_file;
96 module_sp->SetFileSpecAndObjectName (archive_file, archive_object);
97 // Check if this is a object container by iterating through all object
98 // container plugin instances and then trying to get an object file
99 // from the container plugins since we had a name. Also, don't read
100 // ANY data in case there is data cached in the container plug-ins
101 // (like BSD archives caching the contained objects within an file).
102 for (uint32_t idx = 0; (create_object_container_callback = PluginManager::GetObjectContainerCreateCallbackAtIndex(idx)) != NULL; ++idx)
103 {
104 std::unique_ptr<ObjectContainer> object_container_ap(create_object_container_callback(module_sp, data_sp, data_offset, file, file_offset, file_size));
105
106 if (object_container_ap.get())
107 object_file_sp = object_container_ap->GetObjectFile(file);
108
109 if (object_file_sp.get())
110 return object_file_sp;
111 }
112 // We failed to find any cached object files in the container
113 // plug-ins, so lets read the first 512 bytes and try again below...
114 data_sp = archive_file.ReadFileContents(file_offset, 512);
115 }
116 }
117 }
118
119 if (data_sp && data_sp->GetByteSize() > 0)
120 {
121 // Check if this is a normal object file by iterating through
122 // all object file plugin instances.
123 ObjectFileCreateInstance create_object_file_callback;
124 for (uint32_t idx = 0; (create_object_file_callback = PluginManager::GetObjectFileCreateCallbackAtIndex(idx)) != NULL; ++idx)
125 {
126 object_file_sp.reset (create_object_file_callback(module_sp, data_sp, data_offset, file, file_offset, file_size));
127 if (object_file_sp.get())
128 return object_file_sp;
129 }
130
131 // Check if this is a object container by iterating through
132 // all object container plugin instances and then trying to get
133 // an object file from the container.
134 for (uint32_t idx = 0; (create_object_container_callback = PluginManager::GetObjectContainerCreateCallbackAtIndex(idx)) != NULL; ++idx)
135 {
136 std::unique_ptr<ObjectContainer> object_container_ap(create_object_container_callback(module_sp, data_sp, data_offset, file, file_offset, file_size));
137
138 if (object_container_ap.get())
139 object_file_sp = object_container_ap->GetObjectFile(file);
140
141 if (object_file_sp.get())
142 return object_file_sp;
143 }
144 }
145 }
146 }
147 // We didn't find it, so clear our shared pointer in case it
148 // contains anything and return an empty shared pointer
149 object_file_sp.reset();
150 return object_file_sp;
151 }
152
153 ObjectFileSP
FindPlugin(const lldb::ModuleSP & module_sp,const ProcessSP & process_sp,lldb::addr_t header_addr,DataBufferSP & data_sp)154 ObjectFile::FindPlugin (const lldb::ModuleSP &module_sp,
155 const ProcessSP &process_sp,
156 lldb::addr_t header_addr,
157 DataBufferSP &data_sp)
158 {
159 ObjectFileSP object_file_sp;
160
161 if (module_sp)
162 {
163 Timer scoped_timer (__PRETTY_FUNCTION__,
164 "ObjectFile::FindPlugin (module = %s, process = %p, header_addr = 0x%" PRIx64 ")",
165 module_sp->GetFileSpec().GetPath().c_str(),
166 process_sp.get(), header_addr);
167 uint32_t idx;
168
169 // Check if this is a normal object file by iterating through
170 // all object file plugin instances.
171 ObjectFileCreateMemoryInstance create_callback;
172 for (idx = 0; (create_callback = PluginManager::GetObjectFileCreateMemoryCallbackAtIndex(idx)) != NULL; ++idx)
173 {
174 object_file_sp.reset (create_callback(module_sp, data_sp, process_sp, header_addr));
175 if (object_file_sp.get())
176 return object_file_sp;
177 }
178
179 }
180 // We didn't find it, so clear our shared pointer in case it
181 // contains anything and return an empty shared pointer
182 object_file_sp.reset();
183 return object_file_sp;
184 }
185
186 size_t
GetModuleSpecifications(const FileSpec & file,lldb::offset_t file_offset,lldb::offset_t file_size,ModuleSpecList & specs)187 ObjectFile::GetModuleSpecifications (const FileSpec &file,
188 lldb::offset_t file_offset,
189 lldb::offset_t file_size,
190 ModuleSpecList &specs)
191 {
192 DataBufferSP data_sp (file.ReadFileContents(file_offset, 512));
193 if (data_sp)
194 {
195 if (file_size == 0)
196 {
197 const lldb::offset_t actual_file_size = file.GetByteSize();
198 if (actual_file_size > file_offset)
199 file_size = actual_file_size - file_offset;
200 }
201 return ObjectFile::GetModuleSpecifications (file, // file spec
202 data_sp, // data bytes
203 0, // data offset
204 file_offset,// file offset
205 file_size, // file length
206 specs);
207 }
208 return 0;
209 }
210
211 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 file_size,lldb_private::ModuleSpecList & specs)212 ObjectFile::GetModuleSpecifications (const lldb_private::FileSpec& file,
213 lldb::DataBufferSP& data_sp,
214 lldb::offset_t data_offset,
215 lldb::offset_t file_offset,
216 lldb::offset_t file_size,
217 lldb_private::ModuleSpecList &specs)
218 {
219 const size_t initial_count = specs.GetSize();
220 ObjectFileGetModuleSpecifications callback;
221 uint32_t i;
222 // Try the ObjectFile plug-ins
223 for (i = 0; (callback = PluginManager::GetObjectFileGetModuleSpecificationsCallbackAtIndex(i)) != NULL; ++i)
224 {
225 if (callback (file, data_sp, data_offset, file_offset, file_size, specs) > 0)
226 return specs.GetSize() - initial_count;
227 }
228
229 // Try the ObjectContainer plug-ins
230 for (i = 0; (callback = PluginManager::GetObjectContainerGetModuleSpecificationsCallbackAtIndex(i)) != NULL; ++i)
231 {
232 if (callback (file, data_sp, data_offset, file_offset, file_size, specs) > 0)
233 return specs.GetSize() - initial_count;
234 }
235 return 0;
236 }
237
ObjectFile(const lldb::ModuleSP & module_sp,const FileSpec * file_spec_ptr,lldb::offset_t file_offset,lldb::offset_t length,lldb::DataBufferSP & data_sp,lldb::offset_t data_offset)238 ObjectFile::ObjectFile (const lldb::ModuleSP &module_sp,
239 const FileSpec *file_spec_ptr,
240 lldb::offset_t file_offset,
241 lldb::offset_t length,
242 lldb::DataBufferSP& data_sp,
243 lldb::offset_t data_offset
244 ) :
245 ModuleChild (module_sp),
246 m_file (), // This file could be different from the original module's file
247 m_type (eTypeInvalid),
248 m_strata (eStrataInvalid),
249 m_file_offset (file_offset),
250 m_length (length),
251 m_data (),
252 m_unwind_table (*this),
253 m_process_wp(),
254 m_memory_addr (LLDB_INVALID_ADDRESS),
255 m_sections_ap(),
256 m_symtab_ap ()
257 {
258 if (file_spec_ptr)
259 m_file = *file_spec_ptr;
260 if (data_sp)
261 m_data.SetData (data_sp, data_offset, length);
262 Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT));
263 if (log)
264 {
265 if (m_file)
266 {
267 log->Printf ("%p ObjectFile::ObjectFile() module = %p (%s), file = %s, file_offset = 0x%8.8" PRIx64 ", size = %" PRIu64,
268 this,
269 module_sp.get(),
270 module_sp->GetSpecificationDescription().c_str(),
271 m_file.GetPath().c_str(),
272 m_file_offset,
273 m_length);
274 }
275 else
276 {
277 log->Printf ("%p ObjectFile::ObjectFile() module = %p (%s), file = <NULL>, file_offset = 0x%8.8" PRIx64 ", size = %" PRIu64,
278 this,
279 module_sp.get(),
280 module_sp->GetSpecificationDescription().c_str(),
281 m_file_offset,
282 m_length);
283 }
284 }
285 }
286
287
ObjectFile(const lldb::ModuleSP & module_sp,const ProcessSP & process_sp,lldb::addr_t header_addr,DataBufferSP & header_data_sp)288 ObjectFile::ObjectFile (const lldb::ModuleSP &module_sp,
289 const ProcessSP &process_sp,
290 lldb::addr_t header_addr,
291 DataBufferSP& header_data_sp) :
292 ModuleChild (module_sp),
293 m_file (),
294 m_type (eTypeInvalid),
295 m_strata (eStrataInvalid),
296 m_file_offset (0),
297 m_length (0),
298 m_data (),
299 m_unwind_table (*this),
300 m_process_wp (process_sp),
301 m_memory_addr (header_addr),
302 m_sections_ap(),
303 m_symtab_ap ()
304 {
305 if (header_data_sp)
306 m_data.SetData (header_data_sp, 0, header_data_sp->GetByteSize());
307 Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT));
308 if (log)
309 {
310 log->Printf ("%p ObjectFile::ObjectFile() module = %p (%s), process = %p, header_addr = 0x%" PRIx64,
311 this,
312 module_sp.get(),
313 module_sp->GetSpecificationDescription().c_str(),
314 process_sp.get(),
315 m_memory_addr);
316 }
317 }
318
319
~ObjectFile()320 ObjectFile::~ObjectFile()
321 {
322 Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT));
323 if (log)
324 log->Printf ("%p ObjectFile::~ObjectFile ()\n", this);
325 }
326
327 bool
SetModulesArchitecture(const ArchSpec & new_arch)328 ObjectFile::SetModulesArchitecture (const ArchSpec &new_arch)
329 {
330 ModuleSP module_sp (GetModule());
331 if (module_sp)
332 return module_sp->SetArchitecture (new_arch);
333 return false;
334 }
335
336 AddressClass
GetAddressClass(addr_t file_addr)337 ObjectFile::GetAddressClass (addr_t file_addr)
338 {
339 Symtab *symtab = GetSymtab();
340 if (symtab)
341 {
342 Symbol *symbol = symtab->FindSymbolContainingFileAddress(file_addr);
343 if (symbol)
344 {
345 if (symbol->ValueIsAddress())
346 {
347 const SectionSP section_sp (symbol->GetAddress().GetSection());
348 if (section_sp)
349 {
350 const SectionType section_type = section_sp->GetType();
351 switch (section_type)
352 {
353 case eSectionTypeInvalid: return eAddressClassUnknown;
354 case eSectionTypeCode: return eAddressClassCode;
355 case eSectionTypeContainer: return eAddressClassUnknown;
356 case eSectionTypeData:
357 case eSectionTypeDataCString:
358 case eSectionTypeDataCStringPointers:
359 case eSectionTypeDataSymbolAddress:
360 case eSectionTypeData4:
361 case eSectionTypeData8:
362 case eSectionTypeData16:
363 case eSectionTypeDataPointers:
364 case eSectionTypeZeroFill:
365 case eSectionTypeDataObjCMessageRefs:
366 case eSectionTypeDataObjCCFStrings:
367 return eAddressClassData;
368 case eSectionTypeDebug:
369 case eSectionTypeDWARFDebugAbbrev:
370 case eSectionTypeDWARFDebugAranges:
371 case eSectionTypeDWARFDebugFrame:
372 case eSectionTypeDWARFDebugInfo:
373 case eSectionTypeDWARFDebugLine:
374 case eSectionTypeDWARFDebugLoc:
375 case eSectionTypeDWARFDebugMacInfo:
376 case eSectionTypeDWARFDebugPubNames:
377 case eSectionTypeDWARFDebugPubTypes:
378 case eSectionTypeDWARFDebugRanges:
379 case eSectionTypeDWARFDebugStr:
380 case eSectionTypeDWARFAppleNames:
381 case eSectionTypeDWARFAppleTypes:
382 case eSectionTypeDWARFAppleNamespaces:
383 case eSectionTypeDWARFAppleObjC:
384 return eAddressClassDebug;
385 case eSectionTypeEHFrame: return eAddressClassRuntime;
386 case eSectionTypeELFSymbolTable:
387 case eSectionTypeELFDynamicSymbols:
388 case eSectionTypeELFRelocationEntries:
389 case eSectionTypeELFDynamicLinkInfo:
390 case eSectionTypeOther: return eAddressClassUnknown;
391 }
392 }
393 }
394
395 const SymbolType symbol_type = symbol->GetType();
396 switch (symbol_type)
397 {
398 case eSymbolTypeAny: return eAddressClassUnknown;
399 case eSymbolTypeAbsolute: return eAddressClassUnknown;
400 case eSymbolTypeCode: return eAddressClassCode;
401 case eSymbolTypeTrampoline: return eAddressClassCode;
402 case eSymbolTypeResolver: return eAddressClassCode;
403 case eSymbolTypeData: return eAddressClassData;
404 case eSymbolTypeRuntime: return eAddressClassRuntime;
405 case eSymbolTypeException: return eAddressClassRuntime;
406 case eSymbolTypeSourceFile: return eAddressClassDebug;
407 case eSymbolTypeHeaderFile: return eAddressClassDebug;
408 case eSymbolTypeObjectFile: return eAddressClassDebug;
409 case eSymbolTypeCommonBlock: return eAddressClassDebug;
410 case eSymbolTypeBlock: return eAddressClassDebug;
411 case eSymbolTypeLocal: return eAddressClassData;
412 case eSymbolTypeParam: return eAddressClassData;
413 case eSymbolTypeVariable: return eAddressClassData;
414 case eSymbolTypeVariableType: return eAddressClassDebug;
415 case eSymbolTypeLineEntry: return eAddressClassDebug;
416 case eSymbolTypeLineHeader: return eAddressClassDebug;
417 case eSymbolTypeScopeBegin: return eAddressClassDebug;
418 case eSymbolTypeScopeEnd: return eAddressClassDebug;
419 case eSymbolTypeAdditional: return eAddressClassUnknown;
420 case eSymbolTypeCompiler: return eAddressClassDebug;
421 case eSymbolTypeInstrumentation:return eAddressClassDebug;
422 case eSymbolTypeUndefined: return eAddressClassUnknown;
423 case eSymbolTypeObjCClass: return eAddressClassRuntime;
424 case eSymbolTypeObjCMetaClass: return eAddressClassRuntime;
425 case eSymbolTypeObjCIVar: return eAddressClassRuntime;
426 }
427 }
428 }
429 return eAddressClassUnknown;
430 }
431
432 DataBufferSP
ReadMemory(const ProcessSP & process_sp,lldb::addr_t addr,size_t byte_size)433 ObjectFile::ReadMemory (const ProcessSP &process_sp, lldb::addr_t addr, size_t byte_size)
434 {
435 DataBufferSP data_sp;
436 if (process_sp)
437 {
438 std::unique_ptr<DataBufferHeap> data_ap (new DataBufferHeap (byte_size, 0));
439 Error error;
440 const size_t bytes_read = process_sp->ReadMemory (addr,
441 data_ap->GetBytes(),
442 data_ap->GetByteSize(),
443 error);
444 if (bytes_read == byte_size)
445 data_sp.reset (data_ap.release());
446 }
447 return data_sp;
448 }
449
450 size_t
GetData(off_t offset,size_t length,DataExtractor & data) const451 ObjectFile::GetData (off_t offset, size_t length, DataExtractor &data) const
452 {
453 // The entire file has already been mmap'ed into m_data, so just copy from there
454 // as the back mmap buffer will be shared with shared pointers.
455 return data.SetData (m_data, offset, length);
456 }
457
458 size_t
CopyData(off_t offset,size_t length,void * dst) const459 ObjectFile::CopyData (off_t offset, size_t length, void *dst) const
460 {
461 // The entire file has already been mmap'ed into m_data, so just copy from there
462 return m_data.CopyByteOrderedData (offset, length, dst, length, lldb::endian::InlHostByteOrder());
463 }
464
465
466 size_t
ReadSectionData(const Section * section,off_t section_offset,void * dst,size_t dst_len) const467 ObjectFile::ReadSectionData (const Section *section, off_t section_offset, void *dst, size_t dst_len) const
468 {
469 // If some other objectfile owns this data, pass this to them.
470 if (section->GetObjectFile() != this)
471 return section->GetObjectFile()->ReadSectionData (section, section_offset, dst, dst_len);
472
473 if (IsInMemory())
474 {
475 ProcessSP process_sp (m_process_wp.lock());
476 if (process_sp)
477 {
478 Error error;
479 const addr_t base_load_addr = section->GetLoadBaseAddress (&process_sp->GetTarget());
480 if (base_load_addr != LLDB_INVALID_ADDRESS)
481 return process_sp->ReadMemory (base_load_addr + section_offset, dst, dst_len, error);
482 }
483 }
484 else
485 {
486 const uint64_t section_file_size = section->GetFileSize();
487 if (section_offset < section_file_size)
488 {
489 const uint64_t section_bytes_left = section_file_size - section_offset;
490 uint64_t section_dst_len = dst_len;
491 if (section_dst_len > section_bytes_left)
492 section_dst_len = section_bytes_left;
493 return CopyData (section->GetFileOffset() + section_offset, section_dst_len, dst);
494 }
495 else
496 {
497 if (section->GetType() == eSectionTypeZeroFill)
498 {
499 const uint64_t section_size = section->GetByteSize();
500 const uint64_t section_bytes_left = section_size - section_offset;
501 uint64_t section_dst_len = dst_len;
502 if (section_dst_len > section_bytes_left)
503 section_dst_len = section_bytes_left;
504 bzero(dst, section_dst_len);
505 return section_dst_len;
506 }
507 }
508 }
509 return 0;
510 }
511
512 //----------------------------------------------------------------------
513 // Get the section data the file on disk
514 //----------------------------------------------------------------------
515 size_t
ReadSectionData(const Section * section,DataExtractor & section_data) const516 ObjectFile::ReadSectionData (const Section *section, DataExtractor& section_data) const
517 {
518 // If some other objectfile owns this data, pass this to them.
519 if (section->GetObjectFile() != this)
520 return section->GetObjectFile()->ReadSectionData (section, section_data);
521
522 if (IsInMemory())
523 {
524 ProcessSP process_sp (m_process_wp.lock());
525 if (process_sp)
526 {
527 const addr_t base_load_addr = section->GetLoadBaseAddress (&process_sp->GetTarget());
528 if (base_load_addr != LLDB_INVALID_ADDRESS)
529 {
530 DataBufferSP data_sp (ReadMemory (process_sp, base_load_addr, section->GetByteSize()));
531 if (data_sp)
532 {
533 section_data.SetData (data_sp, 0, data_sp->GetByteSize());
534 section_data.SetByteOrder (process_sp->GetByteOrder());
535 section_data.SetAddressByteSize (process_sp->GetAddressByteSize());
536 return section_data.GetByteSize();
537 }
538 }
539 }
540 }
541 else
542 {
543 // The object file now contains a full mmap'ed copy of the object file data, so just use this
544 return MemoryMapSectionData (section, section_data);
545 }
546 section_data.Clear();
547 return 0;
548 }
549
550 size_t
MemoryMapSectionData(const Section * section,DataExtractor & section_data) const551 ObjectFile::MemoryMapSectionData (const Section *section, DataExtractor& section_data) const
552 {
553 // If some other objectfile owns this data, pass this to them.
554 if (section->GetObjectFile() != this)
555 return section->GetObjectFile()->MemoryMapSectionData (section, section_data);
556
557 if (IsInMemory())
558 {
559 return ReadSectionData (section, section_data);
560 }
561 else
562 {
563 // The object file now contains a full mmap'ed copy of the object file data, so just use this
564 return GetData(section->GetFileOffset(), section->GetFileSize(), section_data);
565 }
566 section_data.Clear();
567 return 0;
568 }
569
570
571 bool
SplitArchivePathWithObject(const char * path_with_object,FileSpec & archive_file,ConstString & archive_object,bool must_exist)572 ObjectFile::SplitArchivePathWithObject (const char *path_with_object, FileSpec &archive_file, ConstString &archive_object, bool must_exist)
573 {
574 RegularExpression g_object_regex("(.*)\\(([^\\)]+)\\)$");
575 RegularExpression::Match regex_match(2);
576 if (g_object_regex.Execute (path_with_object, ®ex_match))
577 {
578 std::string path;
579 std::string obj;
580 if (regex_match.GetMatchAtIndex (path_with_object, 1, path) &&
581 regex_match.GetMatchAtIndex (path_with_object, 2, obj))
582 {
583 archive_file.SetFile (path.c_str(), false);
584 archive_object.SetCString(obj.c_str());
585 if (must_exist && !archive_file.Exists())
586 return false;
587 return true;
588 }
589 }
590 return false;
591 }
592
593 void
ClearSymtab()594 ObjectFile::ClearSymtab ()
595 {
596 ModuleSP module_sp(GetModule());
597 if (module_sp)
598 {
599 lldb_private::Mutex::Locker locker(module_sp->GetMutex());
600 Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT));
601 if (log)
602 {
603 log->Printf ("%p ObjectFile::ClearSymtab () symtab = %p",
604 this,
605 m_symtab_ap.get());
606 }
607 m_symtab_ap.reset();
608 }
609 }
610
611 SectionList *
GetSectionList()612 ObjectFile::GetSectionList()
613 {
614 if (m_sections_ap.get() == NULL)
615 {
616 ModuleSP module_sp(GetModule());
617 if (module_sp)
618 CreateSections(*module_sp->GetUnifiedSectionList());
619 }
620 return m_sections_ap.get();
621 }
622