blob: c600e9db7b27479ea92a54a4b03b203bcf358daa [file] [log] [blame]
Chris Lattner24943d22010-06-08 16:52:24 +00001//===-- 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"
Greg Claytone40b6422011-09-18 18:59:15 +000011#include "lldb/lldb-private-log.h"
Greg Claytondb2dc2b2012-01-12 05:25:17 +000012#include "lldb/Core/DataBuffer.h"
Greg Claytonb5a8f142012-02-05 02:38:54 +000013#include "lldb/Core/DataBufferHeap.h"
Greg Claytone40b6422011-09-18 18:59:15 +000014#include "lldb/Core/Log.h"
Chris Lattner24943d22010-06-08 16:52:24 +000015#include "lldb/Core/Module.h"
16#include "lldb/Core/PluginManager.h"
17#include "lldb/Core/RegularExpression.h"
Greg Clayton49ce8962012-08-29 21:13:06 +000018#include "lldb/Core/Section.h"
Chris Lattner24943d22010-06-08 16:52:24 +000019#include "lldb/Core/Timer.h"
20#include "lldb/Symbol/ObjectFile.h"
21#include "lldb/Symbol/ObjectContainer.h"
22#include "lldb/Symbol/SymbolFile.h"
Greg Claytonb5a8f142012-02-05 02:38:54 +000023#include "lldb/Target/Process.h"
Greg Clayton49ce8962012-08-29 21:13:06 +000024#include "Plugins/ObjectContainer/BSD-Archive/ObjectContainerBSDArchive.h"
Chris Lattner24943d22010-06-08 16:52:24 +000025
26using namespace lldb;
27using namespace lldb_private;
28
Greg Claytone40b6422011-09-18 18:59:15 +000029ObjectFileSP
Greg Claytoncbe61bd2013-02-06 17:22:03 +000030ObjectFile::FindPlugin (const lldb::ModuleSP &module_sp,
31 const FileSpec* file,
32 lldb::offset_t file_offset,
33 lldb::offset_t file_size,
34 DataBufferSP &data_sp,
35 lldb::offset_t &data_offset)
Chris Lattner24943d22010-06-08 16:52:24 +000036{
Greg Claytone40b6422011-09-18 18:59:15 +000037 ObjectFileSP object_file_sp;
Chris Lattner24943d22010-06-08 16:52:24 +000038
Greg Clayton3508c382012-02-24 01:59:29 +000039 if (module_sp)
Chris Lattner24943d22010-06-08 16:52:24 +000040 {
Greg Clayton3508c382012-02-24 01:59:29 +000041 Timer scoped_timer (__PRETTY_FUNCTION__,
Daniel Malea5f35a4b2012-11-29 21:49:15 +000042 "ObjectFile::FindPlugin (module = %s/%s, file = %p, file_offset = 0x%8.8" PRIx64 ", file_size = 0x%8.8" PRIx64 ")",
Greg Clayton3508c382012-02-24 01:59:29 +000043 module_sp->GetFileSpec().GetDirectory().AsCString(),
44 module_sp->GetFileSpec().GetFilename().AsCString(),
Jason Molendaef9eb802012-09-11 06:35:15 +000045 file, (uint64_t) file_offset, (uint64_t) file_size);
Chris Lattner24943d22010-06-08 16:52:24 +000046 if (file)
47 {
Greg Claytoncbe61bd2013-02-06 17:22:03 +000048 FileSpec archive_file;
49 ObjectContainerCreateInstance create_object_container_callback;
50
51 const bool file_exists = file->Exists();
52 if (!data_sp)
Greg Claytondb2dc2b2012-01-12 05:25:17 +000053 {
Greg Claytoncbe61bd2013-02-06 17:22:03 +000054 // 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::auto_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 }
Greg Claytondb2dc2b2012-01-12 05:25:17 +000080 }
Chris Lattner24943d22010-06-08 16:52:24 +000081
Greg Claytoncbe61bd2013-02-06 17:22:03 +000082 if (!data_sp || data_sp->GetByteSize() == 0)
Chris Lattner24943d22010-06-08 16:52:24 +000083 {
84 // Check for archive file with format "/path/to/archive.a(object.o)"
85 char path_with_object[PATH_MAX*2];
Greg Clayton3508c382012-02-24 01:59:29 +000086 module_sp->GetFileSpec().GetPath(path_with_object, sizeof(path_with_object));
Chris Lattner24943d22010-06-08 16:52:24 +000087
Greg Clayton49ce8962012-08-29 21:13:06 +000088 ConstString archive_object;
Greg Clayton3cf7ab52013-02-06 00:38:25 +000089 const bool must_exist = true;
90 if (ObjectFile::SplitArchivePathWithObject (path_with_object, archive_file, archive_object, must_exist))
Chris Lattner24943d22010-06-08 16:52:24 +000091 {
Greg Clayton49ce8962012-08-29 21:13:06 +000092 file_size = archive_file.GetByteSize();
93 if (file_size > 0)
Chris Lattner24943d22010-06-08 16:52:24 +000094 {
Greg Claytoncbe61bd2013-02-06 17:22:03 +000095 file = &archive_file;
Greg Clayton49ce8962012-08-29 21:13:06 +000096 module_sp->SetFileSpecAndObjectName (archive_file, archive_object);
Greg Claytoncbe61bd2013-02-06 17:22:03 +000097 // 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::auto_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);
Chris Lattner24943d22010-06-08 16:52:24 +0000115 }
116 }
117 }
118
Greg Claytoncbe61bd2013-02-06 17:22:03 +0000119 if (data_sp && data_sp->GetByteSize() > 0)
Chris Lattner24943d22010-06-08 16:52:24 +0000120 {
Greg Claytondb2dc2b2012-01-12 05:25:17 +0000121 // Check if this is a normal object file by iterating through
122 // all object file plugin instances.
123 ObjectFileCreateInstance create_object_file_callback;
Greg Claytoncbe61bd2013-02-06 17:22:03 +0000124 for (uint32_t idx = 0; (create_object_file_callback = PluginManager::GetObjectFileCreateCallbackAtIndex(idx)) != NULL; ++idx)
Greg Claytondb2dc2b2012-01-12 05:25:17 +0000125 {
Greg Claytoncbe61bd2013-02-06 17:22:03 +0000126 object_file_sp.reset (create_object_file_callback(module_sp, data_sp, data_offset, file, file_offset, file_size));
Greg Claytondb2dc2b2012-01-12 05:25:17 +0000127 if (object_file_sp.get())
128 return object_file_sp;
129 }
Chris Lattner24943d22010-06-08 16:52:24 +0000130
Greg Claytondb2dc2b2012-01-12 05:25:17 +0000131 // 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.
Greg Claytoncbe61bd2013-02-06 17:22:03 +0000134 for (uint32_t idx = 0; (create_object_container_callback = PluginManager::GetObjectContainerCreateCallbackAtIndex(idx)) != NULL; ++idx)
Greg Claytondb2dc2b2012-01-12 05:25:17 +0000135 {
Greg Claytoncbe61bd2013-02-06 17:22:03 +0000136 std::auto_ptr<ObjectContainer> object_container_ap(create_object_container_callback(module_sp, data_sp, data_offset, file, file_offset, file_size));
Chris Lattner24943d22010-06-08 16:52:24 +0000137
Greg Claytondb2dc2b2012-01-12 05:25:17 +0000138 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 }
Chris Lattner24943d22010-06-08 16:52:24 +0000144 }
145 }
146 }
Greg Claytone40b6422011-09-18 18:59:15 +0000147 // 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
Greg Claytonb5a8f142012-02-05 02:38:54 +0000153ObjectFileSP
Greg Clayton3508c382012-02-24 01:59:29 +0000154ObjectFile::FindPlugin (const lldb::ModuleSP &module_sp,
Greg Claytonb5a8f142012-02-05 02:38:54 +0000155 const ProcessSP &process_sp,
156 lldb::addr_t header_addr,
Greg Claytoncbe61bd2013-02-06 17:22:03 +0000157 DataBufferSP &data_sp)
Greg Claytonb5a8f142012-02-05 02:38:54 +0000158{
Greg Claytonb5a8f142012-02-05 02:38:54 +0000159 ObjectFileSP object_file_sp;
160
Greg Clayton3508c382012-02-24 01:59:29 +0000161 if (module_sp)
Greg Claytonb5a8f142012-02-05 02:38:54 +0000162 {
Greg Clayton3508c382012-02-24 01:59:29 +0000163 Timer scoped_timer (__PRETTY_FUNCTION__,
Daniel Malea5f35a4b2012-11-29 21:49:15 +0000164 "ObjectFile::FindPlugin (module = %s/%s, process = %p, header_addr = 0x%" PRIx64 ")",
Greg Clayton3508c382012-02-24 01:59:29 +0000165 module_sp->GetFileSpec().GetDirectory().AsCString(),
166 module_sp->GetFileSpec().GetFilename().AsCString(),
167 process_sp.get(), header_addr);
Greg Claytonb5a8f142012-02-05 02:38:54 +0000168 uint32_t idx;
169
170 // Check if this is a normal object file by iterating through
171 // all object file plugin instances.
172 ObjectFileCreateMemoryInstance create_callback;
173 for (idx = 0; (create_callback = PluginManager::GetObjectFileCreateMemoryCallbackAtIndex(idx)) != NULL; ++idx)
174 {
Greg Claytoncbe61bd2013-02-06 17:22:03 +0000175 object_file_sp.reset (create_callback(module_sp, data_sp, process_sp, header_addr));
Greg Claytonb5a8f142012-02-05 02:38:54 +0000176 if (object_file_sp.get())
177 return object_file_sp;
178 }
179
180 }
181 // We didn't find it, so clear our shared pointer in case it
182 // contains anything and return an empty shared pointer
183 object_file_sp.reset();
184 return object_file_sp;
185}
186
Greg Clayton3508c382012-02-24 01:59:29 +0000187ObjectFile::ObjectFile (const lldb::ModuleSP &module_sp,
Greg Claytone40b6422011-09-18 18:59:15 +0000188 const FileSpec *file_spec_ptr,
Greg Claytoncbe61bd2013-02-06 17:22:03 +0000189 lldb::offset_t file_offset,
190 lldb::offset_t length,
191 lldb::DataBufferSP& data_sp,
192 lldb::offset_t data_offset
193) :
Greg Clayton3508c382012-02-24 01:59:29 +0000194 ModuleChild (module_sp),
Greg Claytone40b6422011-09-18 18:59:15 +0000195 m_file (), // This file could be different from the original module's file
196 m_type (eTypeInvalid),
197 m_strata (eStrataInvalid),
Greg Claytoncbe61bd2013-02-06 17:22:03 +0000198 m_file_offset (file_offset),
199 m_length (length),
Greg Claytondb2dc2b2012-01-12 05:25:17 +0000200 m_data (),
Greg Claytonb5a8f142012-02-05 02:38:54 +0000201 m_unwind_table (*this),
202 m_process_wp(),
Greg Clayton46c9a352012-02-09 06:16:32 +0000203 m_memory_addr (LLDB_INVALID_ADDRESS)
Greg Claytone40b6422011-09-18 18:59:15 +0000204{
205 if (file_spec_ptr)
206 m_file = *file_spec_ptr;
Greg Claytoncbe61bd2013-02-06 17:22:03 +0000207 if (data_sp)
208 m_data.SetData (data_sp, data_offset, length);
Greg Claytone40b6422011-09-18 18:59:15 +0000209 LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT));
210 if (log)
211 {
212 if (m_file)
213 {
Greg Claytoncbe61bd2013-02-06 17:22:03 +0000214 log->Printf ("%p ObjectFile::ObjectFile () module = %s/%s, file = %s/%s, file_offset = 0x%8.8" PRIx64 ", size = %" PRIu64 "\n",
Greg Claytone40b6422011-09-18 18:59:15 +0000215 this,
Greg Clayton3508c382012-02-24 01:59:29 +0000216 module_sp->GetFileSpec().GetDirectory().AsCString(),
217 module_sp->GetFileSpec().GetFilename().AsCString(),
Greg Claytone40b6422011-09-18 18:59:15 +0000218 m_file.GetDirectory().AsCString(),
219 m_file.GetFilename().AsCString(),
Greg Claytoncbe61bd2013-02-06 17:22:03 +0000220 m_file_offset,
Greg Claytone40b6422011-09-18 18:59:15 +0000221 m_length);
222 }
223 else
224 {
Greg Claytoncbe61bd2013-02-06 17:22:03 +0000225 log->Printf ("%p ObjectFile::ObjectFile () module = %s/%s, file = <NULL>, file_offset = 0x%8.8" PRIx64 ", size = %" PRIu64 "\n",
Greg Claytone40b6422011-09-18 18:59:15 +0000226 this,
Greg Clayton3508c382012-02-24 01:59:29 +0000227 module_sp->GetFileSpec().GetDirectory().AsCString(),
228 module_sp->GetFileSpec().GetFilename().AsCString(),
Greg Claytoncbe61bd2013-02-06 17:22:03 +0000229 m_file_offset,
Greg Claytone40b6422011-09-18 18:59:15 +0000230 m_length);
231 }
232 }
233}
234
Greg Claytonb5a8f142012-02-05 02:38:54 +0000235
Greg Clayton3508c382012-02-24 01:59:29 +0000236ObjectFile::ObjectFile (const lldb::ModuleSP &module_sp,
Greg Claytonb5a8f142012-02-05 02:38:54 +0000237 const ProcessSP &process_sp,
238 lldb::addr_t header_addr,
239 DataBufferSP& header_data_sp) :
Greg Clayton3508c382012-02-24 01:59:29 +0000240 ModuleChild (module_sp),
Greg Claytonb5a8f142012-02-05 02:38:54 +0000241 m_file (),
242 m_type (eTypeInvalid),
243 m_strata (eStrataInvalid),
Greg Claytoncbe61bd2013-02-06 17:22:03 +0000244 m_file_offset (0),
Greg Claytonb5a8f142012-02-05 02:38:54 +0000245 m_length (0),
246 m_data (),
247 m_unwind_table (*this),
248 m_process_wp (process_sp),
Greg Clayton46c9a352012-02-09 06:16:32 +0000249 m_memory_addr (header_addr)
Greg Claytonb5a8f142012-02-05 02:38:54 +0000250{
251 if (header_data_sp)
252 m_data.SetData (header_data_sp, 0, header_data_sp->GetByteSize());
253 LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT));
254 if (log)
255 {
Daniel Malea5f35a4b2012-11-29 21:49:15 +0000256 log->Printf ("%p ObjectFile::ObjectFile () module = %s/%s, process = %p, header_addr = 0x%" PRIx64 "\n",
Greg Claytonb5a8f142012-02-05 02:38:54 +0000257 this,
Greg Clayton3508c382012-02-24 01:59:29 +0000258 module_sp->GetFileSpec().GetDirectory().AsCString(),
259 module_sp->GetFileSpec().GetFilename().AsCString(),
Greg Claytonb5a8f142012-02-05 02:38:54 +0000260 process_sp.get(),
Greg Claytoncbe61bd2013-02-06 17:22:03 +0000261 m_memory_addr);
Greg Claytonb5a8f142012-02-05 02:38:54 +0000262 }
263}
264
265
Greg Claytone40b6422011-09-18 18:59:15 +0000266ObjectFile::~ObjectFile()
267{
268 LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT));
269 if (log)
Greg Claytonc9b798c2012-11-28 00:44:24 +0000270 log->Printf ("%p ObjectFile::~ObjectFile ()\n", this);
Chris Lattner24943d22010-06-08 16:52:24 +0000271}
Jim Ingham7508e732010-08-09 23:31:02 +0000272
273bool
274ObjectFile::SetModulesArchitecture (const ArchSpec &new_arch)
275{
Greg Clayton3508c382012-02-24 01:59:29 +0000276 ModuleSP module_sp (GetModule());
277 if (module_sp)
278 return module_sp->SetArchitecture (new_arch);
279 return false;
Jim Ingham7508e732010-08-09 23:31:02 +0000280}
281
Greg Claytonb3448432011-03-24 21:19:54 +0000282AddressClass
Greg Claytone40b6422011-09-18 18:59:15 +0000283ObjectFile::GetAddressClass (addr_t file_addr)
Greg Claytonb1888f22011-03-19 01:12:21 +0000284{
285 Symtab *symtab = GetSymtab();
286 if (symtab)
287 {
288 Symbol *symbol = symtab->FindSymbolContainingFileAddress(file_addr);
289 if (symbol)
290 {
Greg Clayton0c31d3d2012-03-07 21:03:09 +0000291 if (symbol->ValueIsAddress())
Greg Claytonb1888f22011-03-19 01:12:21 +0000292 {
Greg Clayton0c31d3d2012-03-07 21:03:09 +0000293 const SectionSP section_sp (symbol->GetAddress().GetSection());
Greg Clayton3508c382012-02-24 01:59:29 +0000294 if (section_sp)
Greg Claytonb1888f22011-03-19 01:12:21 +0000295 {
Greg Clayton3508c382012-02-24 01:59:29 +0000296 const SectionType section_type = section_sp->GetType();
Greg Claytonb1888f22011-03-19 01:12:21 +0000297 switch (section_type)
298 {
299 case eSectionTypeInvalid: return eAddressClassUnknown;
300 case eSectionTypeCode: return eAddressClassCode;
301 case eSectionTypeContainer: return eAddressClassUnknown;
Greg Clayton24a6bd92011-10-27 17:55:14 +0000302 case eSectionTypeData:
303 case eSectionTypeDataCString:
304 case eSectionTypeDataCStringPointers:
305 case eSectionTypeDataSymbolAddress:
306 case eSectionTypeData4:
307 case eSectionTypeData8:
308 case eSectionTypeData16:
309 case eSectionTypeDataPointers:
310 case eSectionTypeZeroFill:
311 case eSectionTypeDataObjCMessageRefs:
312 case eSectionTypeDataObjCCFStrings:
313 return eAddressClassData;
314 case eSectionTypeDebug:
315 case eSectionTypeDWARFDebugAbbrev:
316 case eSectionTypeDWARFDebugAranges:
317 case eSectionTypeDWARFDebugFrame:
318 case eSectionTypeDWARFDebugInfo:
319 case eSectionTypeDWARFDebugLine:
320 case eSectionTypeDWARFDebugLoc:
321 case eSectionTypeDWARFDebugMacInfo:
322 case eSectionTypeDWARFDebugPubNames:
323 case eSectionTypeDWARFDebugPubTypes:
324 case eSectionTypeDWARFDebugRanges:
325 case eSectionTypeDWARFDebugStr:
326 case eSectionTypeDWARFAppleNames:
327 case eSectionTypeDWARFAppleTypes:
328 case eSectionTypeDWARFAppleNamespaces:
329 case eSectionTypeDWARFAppleObjC:
330 return eAddressClassDebug;
Greg Claytonb1888f22011-03-19 01:12:21 +0000331 case eSectionTypeEHFrame: return eAddressClassRuntime;
332 case eSectionTypeOther: return eAddressClassUnknown;
333 }
334 }
335 }
336
Greg Claytonb3448432011-03-24 21:19:54 +0000337 const SymbolType symbol_type = symbol->GetType();
Greg Claytonb1888f22011-03-19 01:12:21 +0000338 switch (symbol_type)
339 {
340 case eSymbolTypeAny: return eAddressClassUnknown;
341 case eSymbolTypeAbsolute: return eAddressClassUnknown;
Greg Claytonb1888f22011-03-19 01:12:21 +0000342 case eSymbolTypeCode: return eAddressClassCode;
343 case eSymbolTypeTrampoline: return eAddressClassCode;
344 case eSymbolTypeData: return eAddressClassData;
345 case eSymbolTypeRuntime: return eAddressClassRuntime;
346 case eSymbolTypeException: return eAddressClassRuntime;
347 case eSymbolTypeSourceFile: return eAddressClassDebug;
348 case eSymbolTypeHeaderFile: return eAddressClassDebug;
349 case eSymbolTypeObjectFile: return eAddressClassDebug;
350 case eSymbolTypeCommonBlock: return eAddressClassDebug;
351 case eSymbolTypeBlock: return eAddressClassDebug;
352 case eSymbolTypeLocal: return eAddressClassData;
353 case eSymbolTypeParam: return eAddressClassData;
354 case eSymbolTypeVariable: return eAddressClassData;
355 case eSymbolTypeVariableType: return eAddressClassDebug;
356 case eSymbolTypeLineEntry: return eAddressClassDebug;
357 case eSymbolTypeLineHeader: return eAddressClassDebug;
358 case eSymbolTypeScopeBegin: return eAddressClassDebug;
359 case eSymbolTypeScopeEnd: return eAddressClassDebug;
360 case eSymbolTypeAdditional: return eAddressClassUnknown;
361 case eSymbolTypeCompiler: return eAddressClassDebug;
362 case eSymbolTypeInstrumentation:return eAddressClassDebug;
363 case eSymbolTypeUndefined: return eAddressClassUnknown;
Greg Clayton3f69eac2011-12-03 02:30:59 +0000364 case eSymbolTypeObjCClass: return eAddressClassRuntime;
365 case eSymbolTypeObjCMetaClass: return eAddressClassRuntime;
366 case eSymbolTypeObjCIVar: return eAddressClassRuntime;
Greg Claytonb1888f22011-03-19 01:12:21 +0000367 }
368 }
369 }
370 return eAddressClassUnknown;
371}
372
Greg Claytonb5a8f142012-02-05 02:38:54 +0000373DataBufferSP
374ObjectFile::ReadMemory (const ProcessSP &process_sp, lldb::addr_t addr, size_t byte_size)
375{
376 DataBufferSP data_sp;
377 if (process_sp)
378 {
379 std::auto_ptr<DataBufferHeap> data_ap (new DataBufferHeap (byte_size, 0));
380 Error error;
381 const size_t bytes_read = process_sp->ReadMemory (addr,
382 data_ap->GetBytes(),
383 data_ap->GetByteSize(),
384 error);
385 if (bytes_read == byte_size)
386 data_sp.reset (data_ap.release());
387 }
388 return data_sp;
389}
390
Greg Claytondb2dc2b2012-01-12 05:25:17 +0000391size_t
392ObjectFile::GetData (off_t offset, size_t length, DataExtractor &data) const
393{
394 // The entire file has already been mmap'ed into m_data, so just copy from there
395 // as the back mmap buffer will be shared with shared pointers.
396 return data.SetData (m_data, offset, length);
397}
398
399size_t
400ObjectFile::CopyData (off_t offset, size_t length, void *dst) const
401{
402 // The entire file has already been mmap'ed into m_data, so just copy from there
403 return m_data.CopyByteOrderedData (offset, length, dst, length, lldb::endian::InlHostByteOrder());
404}
Greg Claytonb1888f22011-03-19 01:12:21 +0000405
Greg Claytonb5a8f142012-02-05 02:38:54 +0000406
407size_t
408ObjectFile::ReadSectionData (const Section *section, off_t section_offset, void *dst, size_t dst_len) const
409{
Greg Clayton46c9a352012-02-09 06:16:32 +0000410 if (IsInMemory())
Greg Claytonb5a8f142012-02-05 02:38:54 +0000411 {
412 ProcessSP process_sp (m_process_wp.lock());
413 if (process_sp)
414 {
415 Error error;
Greg Clayton2ddb2b82013-02-01 21:38:35 +0000416 const addr_t base_load_addr = section->GetLoadBaseAddress (&process_sp->GetTarget());
417 if (base_load_addr != LLDB_INVALID_ADDRESS)
418 return process_sp->ReadMemory (base_load_addr + section_offset, dst, dst_len, error);
Greg Claytonb5a8f142012-02-05 02:38:54 +0000419 }
420 }
421 else
422 {
Greg Clayton3383c172012-02-21 17:34:25 +0000423 const uint64_t section_file_size = section->GetFileSize();
424 if (section_offset < section_file_size)
425 {
426 const uint64_t section_bytes_left = section_file_size - section_offset;
427 uint64_t section_dst_len = dst_len;
428 if (section_dst_len > section_bytes_left)
429 section_dst_len = section_bytes_left;
430 return CopyData (section->GetFileOffset() + section_offset, section_dst_len, dst);
431 }
Sean Callanan1e526002013-01-04 23:20:01 +0000432 else
433 {
434 if (section->GetType() == eSectionTypeZeroFill)
435 {
436 const uint64_t section_size = section->GetByteSize();
437 const uint64_t section_bytes_left = section_size - section_offset;
438 uint64_t section_dst_len = dst_len;
439 if (section_dst_len > section_bytes_left)
440 section_dst_len = section_bytes_left;
441 bzero(dst, section_dst_len);
442 return section_dst_len;
443 }
444 }
Greg Claytonb5a8f142012-02-05 02:38:54 +0000445 }
446 return 0;
447}
448
449//----------------------------------------------------------------------
450// Get the section data the file on disk
451//----------------------------------------------------------------------
452size_t
453ObjectFile::ReadSectionData (const Section *section, DataExtractor& section_data) const
454{
Greg Clayton46c9a352012-02-09 06:16:32 +0000455 if (IsInMemory())
Greg Claytonb5a8f142012-02-05 02:38:54 +0000456 {
457 ProcessSP process_sp (m_process_wp.lock());
458 if (process_sp)
459 {
Greg Clayton2ddb2b82013-02-01 21:38:35 +0000460 const addr_t base_load_addr = section->GetLoadBaseAddress (&process_sp->GetTarget());
461 if (base_load_addr != LLDB_INVALID_ADDRESS)
Greg Claytonb5a8f142012-02-05 02:38:54 +0000462 {
Greg Clayton2ddb2b82013-02-01 21:38:35 +0000463 DataBufferSP data_sp (ReadMemory (process_sp, base_load_addr, section->GetByteSize()));
464 if (data_sp)
465 {
466 section_data.SetData (data_sp, 0, data_sp->GetByteSize());
467 section_data.SetByteOrder (process_sp->GetByteOrder());
468 section_data.SetAddressByteSize (process_sp->GetAddressByteSize());
469 return section_data.GetByteSize();
470 }
Greg Claytonb5a8f142012-02-05 02:38:54 +0000471 }
472 }
473 }
474 else
475 {
476 // The object file now contains a full mmap'ed copy of the object file data, so just use this
477 return MemoryMapSectionData (section, section_data);
478 }
479 section_data.Clear();
480 return 0;
481}
482
483size_t
484ObjectFile::MemoryMapSectionData (const Section *section, DataExtractor& section_data) const
485{
Greg Clayton46c9a352012-02-09 06:16:32 +0000486 if (IsInMemory())
Greg Claytonb5a8f142012-02-05 02:38:54 +0000487 {
488 return ReadSectionData (section, section_data);
489 }
490 else
491 {
492 // The object file now contains a full mmap'ed copy of the object file data, so just use this
Greg Clayton23d90ae2012-03-27 02:40:46 +0000493 return GetData(section->GetFileOffset(), section->GetFileSize(), section_data);
Greg Claytonb5a8f142012-02-05 02:38:54 +0000494 }
495 section_data.Clear();
496 return 0;
497}
498
Greg Clayton49ce8962012-08-29 21:13:06 +0000499
500bool
Greg Clayton3cf7ab52013-02-06 00:38:25 +0000501ObjectFile::SplitArchivePathWithObject (const char *path_with_object, FileSpec &archive_file, ConstString &archive_object, bool must_exist)
Greg Clayton49ce8962012-08-29 21:13:06 +0000502{
503 RegularExpression g_object_regex("(.*)\\(([^\\)]+)\\)$");
504 if (g_object_regex.Execute (path_with_object, 2))
505 {
506 std::string path;
507 std::string obj;
508 if (g_object_regex.GetMatchAtIndex (path_with_object, 1, path) &&
509 g_object_regex.GetMatchAtIndex (path_with_object, 2, obj))
510 {
511 archive_file.SetFile (path.c_str(), false);
512 archive_object.SetCString(obj.c_str());
Greg Clayton3cf7ab52013-02-06 00:38:25 +0000513 if (must_exist && !archive_file.Exists())
514 return false;
Greg Clayton49ce8962012-08-29 21:13:06 +0000515 return true;
516 }
517 }
518 return false;
519}
520