forked from OSchip/llvm-project
670 lines
27 KiB
C++
670 lines
27 KiB
C++
//===-- ObjectFile.cpp ------------------------------------------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "lldb/lldb-private.h"
|
|
#include "lldb/Core/DataBuffer.h"
|
|
#include "lldb/Core/DataBufferHeap.h"
|
|
#include "lldb/Core/Log.h"
|
|
#include "lldb/Core/Module.h"
|
|
#include "lldb/Core/ModuleSpec.h"
|
|
#include "lldb/Core/PluginManager.h"
|
|
#include "lldb/Core/RegularExpression.h"
|
|
#include "lldb/Core/Section.h"
|
|
#include "lldb/Core/Timer.h"
|
|
#include "lldb/Symbol/ObjectFile.h"
|
|
#include "lldb/Symbol/ObjectContainer.h"
|
|
#include "lldb/Symbol/SymbolFile.h"
|
|
#include "lldb/Target/Process.h"
|
|
#include "Plugins/ObjectContainer/BSD-Archive/ObjectContainerBSDArchive.h"
|
|
|
|
using namespace lldb;
|
|
using namespace lldb_private;
|
|
|
|
ObjectFileSP
|
|
ObjectFile::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)
|
|
{
|
|
ObjectFileSP object_file_sp;
|
|
|
|
if (module_sp)
|
|
{
|
|
Timer scoped_timer (__PRETTY_FUNCTION__,
|
|
"ObjectFile::FindPlugin (module = %s, file = %p, file_offset = 0x%8.8" PRIx64 ", file_size = 0x%8.8" PRIx64 ")",
|
|
module_sp->GetFileSpec().GetPath().c_str(),
|
|
static_cast<const void*>(file),
|
|
static_cast<uint64_t>(file_offset),
|
|
static_cast<uint64_t>(file_size));
|
|
if (file)
|
|
{
|
|
FileSpec archive_file;
|
|
ObjectContainerCreateInstance create_object_container_callback;
|
|
|
|
const bool file_exists = file->Exists();
|
|
if (!data_sp)
|
|
{
|
|
// We have an object name which most likely means we have
|
|
// a .o file in a static archive (.a file). Try and see if
|
|
// we have a cached archive first without reading any data
|
|
// first
|
|
if (file_exists && module_sp->GetObjectName())
|
|
{
|
|
for (uint32_t idx = 0; (create_object_container_callback = PluginManager::GetObjectContainerCreateCallbackAtIndex(idx)) != nullptr; ++idx)
|
|
{
|
|
std::unique_ptr<ObjectContainer> object_container_ap(create_object_container_callback(module_sp, data_sp, data_offset, file, file_offset, file_size));
|
|
|
|
if (object_container_ap.get())
|
|
object_file_sp = object_container_ap->GetObjectFile(file);
|
|
|
|
if (object_file_sp.get())
|
|
return object_file_sp;
|
|
}
|
|
}
|
|
// Ok, we didn't find any containers that have a named object, now
|
|
// lets read the first 512 bytes from the file so the object file
|
|
// and object container plug-ins can use these bytes to see if they
|
|
// can parse this file.
|
|
if (file_size > 0)
|
|
{
|
|
data_sp = file->ReadFileContents(file_offset, std::min<size_t>(512, file_size));
|
|
data_offset = 0;
|
|
}
|
|
}
|
|
|
|
if (!data_sp || data_sp->GetByteSize() == 0)
|
|
{
|
|
// Check for archive file with format "/path/to/archive.a(object.o)"
|
|
char path_with_object[PATH_MAX*2];
|
|
module_sp->GetFileSpec().GetPath(path_with_object, sizeof(path_with_object));
|
|
|
|
ConstString archive_object;
|
|
const bool must_exist = true;
|
|
if (ObjectFile::SplitArchivePathWithObject (path_with_object, archive_file, archive_object, must_exist))
|
|
{
|
|
file_size = archive_file.GetByteSize();
|
|
if (file_size > 0)
|
|
{
|
|
file = &archive_file;
|
|
module_sp->SetFileSpecAndObjectName (archive_file, archive_object);
|
|
// Check if this is a object container by iterating through all object
|
|
// container plugin instances and then trying to get an object file
|
|
// from the container plugins since we had a name. Also, don't read
|
|
// ANY data in case there is data cached in the container plug-ins
|
|
// (like BSD archives caching the contained objects within an file).
|
|
for (uint32_t idx = 0; (create_object_container_callback = PluginManager::GetObjectContainerCreateCallbackAtIndex(idx)) != nullptr; ++idx)
|
|
{
|
|
std::unique_ptr<ObjectContainer> object_container_ap(create_object_container_callback(module_sp, data_sp, data_offset, file, file_offset, file_size));
|
|
|
|
if (object_container_ap.get())
|
|
object_file_sp = object_container_ap->GetObjectFile(file);
|
|
|
|
if (object_file_sp.get())
|
|
return object_file_sp;
|
|
}
|
|
// We failed to find any cached object files in the container
|
|
// plug-ins, so lets read the first 512 bytes and try again below...
|
|
data_sp = archive_file.ReadFileContents(file_offset, 512);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (data_sp && data_sp->GetByteSize() > 0)
|
|
{
|
|
// Check if this is a normal object file by iterating through
|
|
// all object file plugin instances.
|
|
ObjectFileCreateInstance create_object_file_callback;
|
|
for (uint32_t idx = 0; (create_object_file_callback = PluginManager::GetObjectFileCreateCallbackAtIndex(idx)) != nullptr; ++idx)
|
|
{
|
|
object_file_sp.reset (create_object_file_callback(module_sp, data_sp, data_offset, file, file_offset, file_size));
|
|
if (object_file_sp.get())
|
|
return object_file_sp;
|
|
}
|
|
|
|
// Check if this is a object container by iterating through
|
|
// all object container plugin instances and then trying to get
|
|
// an object file from the container.
|
|
for (uint32_t idx = 0; (create_object_container_callback = PluginManager::GetObjectContainerCreateCallbackAtIndex(idx)) != nullptr; ++idx)
|
|
{
|
|
std::unique_ptr<ObjectContainer> object_container_ap(create_object_container_callback(module_sp, data_sp, data_offset, file, file_offset, file_size));
|
|
|
|
if (object_container_ap.get())
|
|
object_file_sp = object_container_ap->GetObjectFile(file);
|
|
|
|
if (object_file_sp.get())
|
|
return object_file_sp;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// We didn't find it, so clear our shared pointer in case it
|
|
// contains anything and return an empty shared pointer
|
|
object_file_sp.reset();
|
|
return object_file_sp;
|
|
}
|
|
|
|
ObjectFileSP
|
|
ObjectFile::FindPlugin (const lldb::ModuleSP &module_sp,
|
|
const ProcessSP &process_sp,
|
|
lldb::addr_t header_addr,
|
|
DataBufferSP &data_sp)
|
|
{
|
|
ObjectFileSP object_file_sp;
|
|
|
|
if (module_sp)
|
|
{
|
|
Timer scoped_timer (__PRETTY_FUNCTION__,
|
|
"ObjectFile::FindPlugin (module = %s, process = %p, header_addr = 0x%" PRIx64 ")",
|
|
module_sp->GetFileSpec().GetPath().c_str(),
|
|
static_cast<void*>(process_sp.get()), header_addr);
|
|
uint32_t idx;
|
|
|
|
// Check if this is a normal object file by iterating through
|
|
// all object file plugin instances.
|
|
ObjectFileCreateMemoryInstance create_callback;
|
|
for (idx = 0; (create_callback = PluginManager::GetObjectFileCreateMemoryCallbackAtIndex(idx)) != nullptr; ++idx)
|
|
{
|
|
object_file_sp.reset (create_callback(module_sp, data_sp, process_sp, header_addr));
|
|
if (object_file_sp.get())
|
|
return object_file_sp;
|
|
}
|
|
}
|
|
|
|
// We didn't find it, so clear our shared pointer in case it
|
|
// contains anything and return an empty shared pointer
|
|
object_file_sp.reset();
|
|
return object_file_sp;
|
|
}
|
|
|
|
size_t
|
|
ObjectFile::GetModuleSpecifications (const FileSpec &file,
|
|
lldb::offset_t file_offset,
|
|
lldb::offset_t file_size,
|
|
ModuleSpecList &specs)
|
|
{
|
|
DataBufferSP data_sp (file.ReadFileContents(file_offset, 512));
|
|
if (data_sp)
|
|
{
|
|
if (file_size == 0)
|
|
{
|
|
const lldb::offset_t actual_file_size = file.GetByteSize();
|
|
if (actual_file_size > file_offset)
|
|
file_size = actual_file_size - file_offset;
|
|
}
|
|
return ObjectFile::GetModuleSpecifications (file, // file spec
|
|
data_sp, // data bytes
|
|
0, // data offset
|
|
file_offset,// file offset
|
|
file_size, // file length
|
|
specs);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
size_t
|
|
ObjectFile::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)
|
|
{
|
|
const size_t initial_count = specs.GetSize();
|
|
ObjectFileGetModuleSpecifications callback;
|
|
uint32_t i;
|
|
// Try the ObjectFile plug-ins
|
|
for (i = 0; (callback = PluginManager::GetObjectFileGetModuleSpecificationsCallbackAtIndex(i)) != nullptr; ++i)
|
|
{
|
|
if (callback (file, data_sp, data_offset, file_offset, file_size, specs) > 0)
|
|
return specs.GetSize() - initial_count;
|
|
}
|
|
|
|
// Try the ObjectContainer plug-ins
|
|
for (i = 0; (callback = PluginManager::GetObjectContainerGetModuleSpecificationsCallbackAtIndex(i)) != nullptr; ++i)
|
|
{
|
|
if (callback (file, data_sp, data_offset, file_offset, file_size, specs) > 0)
|
|
return specs.GetSize() - initial_count;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
ObjectFile::ObjectFile (const lldb::ModuleSP &module_sp,
|
|
const FileSpec *file_spec_ptr,
|
|
lldb::offset_t file_offset,
|
|
lldb::offset_t length,
|
|
const lldb::DataBufferSP& data_sp,
|
|
lldb::offset_t data_offset) :
|
|
ModuleChild (module_sp),
|
|
m_file (), // This file could be different from the original module's file
|
|
m_type (eTypeInvalid),
|
|
m_strata (eStrataInvalid),
|
|
m_file_offset (file_offset),
|
|
m_length (length),
|
|
m_data (),
|
|
m_unwind_table (*this),
|
|
m_process_wp(),
|
|
m_memory_addr (LLDB_INVALID_ADDRESS),
|
|
m_sections_ap(),
|
|
m_symtab_ap (),
|
|
m_synthetic_symbol_idx (0)
|
|
{
|
|
if (file_spec_ptr)
|
|
m_file = *file_spec_ptr;
|
|
if (data_sp)
|
|
m_data.SetData (data_sp, data_offset, length);
|
|
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT));
|
|
if (log)
|
|
log->Printf ("%p ObjectFile::ObjectFile() module = %p (%s), file = %s, file_offset = 0x%8.8" PRIx64 ", size = %" PRIu64,
|
|
static_cast<void*>(this),
|
|
static_cast<void*>(module_sp.get()),
|
|
module_sp->GetSpecificationDescription().c_str(),
|
|
m_file ? m_file.GetPath().c_str() : "<NULL>",
|
|
m_file_offset, m_length);
|
|
}
|
|
|
|
|
|
ObjectFile::ObjectFile (const lldb::ModuleSP &module_sp,
|
|
const ProcessSP &process_sp,
|
|
lldb::addr_t header_addr,
|
|
DataBufferSP& header_data_sp) :
|
|
ModuleChild (module_sp),
|
|
m_file (),
|
|
m_type (eTypeInvalid),
|
|
m_strata (eStrataInvalid),
|
|
m_file_offset (0),
|
|
m_length (0),
|
|
m_data (),
|
|
m_unwind_table (*this),
|
|
m_process_wp (process_sp),
|
|
m_memory_addr (header_addr),
|
|
m_sections_ap(),
|
|
m_symtab_ap (),
|
|
m_synthetic_symbol_idx (0)
|
|
{
|
|
if (header_data_sp)
|
|
m_data.SetData (header_data_sp, 0, header_data_sp->GetByteSize());
|
|
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT));
|
|
if (log)
|
|
log->Printf ("%p ObjectFile::ObjectFile() module = %p (%s), process = %p, header_addr = 0x%" PRIx64,
|
|
static_cast<void*>(this),
|
|
static_cast<void*>(module_sp.get()),
|
|
module_sp->GetSpecificationDescription().c_str(),
|
|
static_cast<void*>(process_sp.get()), m_memory_addr);
|
|
}
|
|
|
|
|
|
ObjectFile::~ObjectFile()
|
|
{
|
|
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT));
|
|
if (log)
|
|
log->Printf ("%p ObjectFile::~ObjectFile ()\n",
|
|
static_cast<void*>(this));
|
|
}
|
|
|
|
bool
|
|
ObjectFile::SetModulesArchitecture (const ArchSpec &new_arch)
|
|
{
|
|
ModuleSP module_sp (GetModule());
|
|
if (module_sp)
|
|
return module_sp->SetArchitecture (new_arch);
|
|
return false;
|
|
}
|
|
|
|
AddressClass
|
|
ObjectFile::GetAddressClass (addr_t file_addr)
|
|
{
|
|
Symtab *symtab = GetSymtab();
|
|
if (symtab)
|
|
{
|
|
Symbol *symbol = symtab->FindSymbolContainingFileAddress(file_addr);
|
|
if (symbol)
|
|
{
|
|
if (symbol->ValueIsAddress())
|
|
{
|
|
const SectionSP section_sp (symbol->GetAddressRef().GetSection());
|
|
if (section_sp)
|
|
{
|
|
const SectionType section_type = section_sp->GetType();
|
|
switch (section_type)
|
|
{
|
|
case eSectionTypeInvalid:
|
|
return eAddressClassUnknown;
|
|
case eSectionTypeCode:
|
|
return eAddressClassCode;
|
|
case eSectionTypeContainer:
|
|
return eAddressClassUnknown;
|
|
case eSectionTypeData:
|
|
case eSectionTypeDataCString:
|
|
case eSectionTypeDataCStringPointers:
|
|
case eSectionTypeDataSymbolAddress:
|
|
case eSectionTypeData4:
|
|
case eSectionTypeData8:
|
|
case eSectionTypeData16:
|
|
case eSectionTypeDataPointers:
|
|
case eSectionTypeZeroFill:
|
|
case eSectionTypeDataObjCMessageRefs:
|
|
case eSectionTypeDataObjCCFStrings:
|
|
case eSectionTypeGoSymtab:
|
|
return eAddressClassData;
|
|
case eSectionTypeDebug:
|
|
case eSectionTypeDWARFDebugAbbrev:
|
|
case eSectionTypeDWARFDebugAddr:
|
|
case eSectionTypeDWARFDebugAranges:
|
|
case eSectionTypeDWARFDebugFrame:
|
|
case eSectionTypeDWARFDebugInfo:
|
|
case eSectionTypeDWARFDebugLine:
|
|
case eSectionTypeDWARFDebugLoc:
|
|
case eSectionTypeDWARFDebugMacInfo:
|
|
case eSectionTypeDWARFDebugMacro:
|
|
case eSectionTypeDWARFDebugPubNames:
|
|
case eSectionTypeDWARFDebugPubTypes:
|
|
case eSectionTypeDWARFDebugRanges:
|
|
case eSectionTypeDWARFDebugStr:
|
|
case eSectionTypeDWARFDebugStrOffsets:
|
|
case eSectionTypeDWARFAppleNames:
|
|
case eSectionTypeDWARFAppleTypes:
|
|
case eSectionTypeDWARFAppleNamespaces:
|
|
case eSectionTypeDWARFAppleObjC:
|
|
return eAddressClassDebug;
|
|
case eSectionTypeEHFrame:
|
|
case eSectionTypeARMexidx:
|
|
case eSectionTypeARMextab:
|
|
case eSectionTypeCompactUnwind:
|
|
return eAddressClassRuntime;
|
|
case eSectionTypeELFSymbolTable:
|
|
case eSectionTypeELFDynamicSymbols:
|
|
case eSectionTypeELFRelocationEntries:
|
|
case eSectionTypeELFDynamicLinkInfo:
|
|
case eSectionTypeOther:
|
|
return eAddressClassUnknown;
|
|
case eSectionTypeAbsoluteAddress:
|
|
// In case of absolute sections decide the address class based on the symbol
|
|
// type because the section type isn't specify if it is a code or a data
|
|
// section.
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
const SymbolType symbol_type = symbol->GetType();
|
|
switch (symbol_type)
|
|
{
|
|
case eSymbolTypeAny: return eAddressClassUnknown;
|
|
case eSymbolTypeAbsolute: return eAddressClassUnknown;
|
|
case eSymbolTypeCode: return eAddressClassCode;
|
|
case eSymbolTypeTrampoline: return eAddressClassCode;
|
|
case eSymbolTypeResolver: return eAddressClassCode;
|
|
case eSymbolTypeData: return eAddressClassData;
|
|
case eSymbolTypeRuntime: return eAddressClassRuntime;
|
|
case eSymbolTypeException: return eAddressClassRuntime;
|
|
case eSymbolTypeSourceFile: return eAddressClassDebug;
|
|
case eSymbolTypeHeaderFile: return eAddressClassDebug;
|
|
case eSymbolTypeObjectFile: return eAddressClassDebug;
|
|
case eSymbolTypeCommonBlock: return eAddressClassDebug;
|
|
case eSymbolTypeBlock: return eAddressClassDebug;
|
|
case eSymbolTypeLocal: return eAddressClassData;
|
|
case eSymbolTypeParam: return eAddressClassData;
|
|
case eSymbolTypeVariable: return eAddressClassData;
|
|
case eSymbolTypeVariableType: return eAddressClassDebug;
|
|
case eSymbolTypeLineEntry: return eAddressClassDebug;
|
|
case eSymbolTypeLineHeader: return eAddressClassDebug;
|
|
case eSymbolTypeScopeBegin: return eAddressClassDebug;
|
|
case eSymbolTypeScopeEnd: return eAddressClassDebug;
|
|
case eSymbolTypeAdditional: return eAddressClassUnknown;
|
|
case eSymbolTypeCompiler: return eAddressClassDebug;
|
|
case eSymbolTypeInstrumentation:return eAddressClassDebug;
|
|
case eSymbolTypeUndefined: return eAddressClassUnknown;
|
|
case eSymbolTypeObjCClass: return eAddressClassRuntime;
|
|
case eSymbolTypeObjCMetaClass: return eAddressClassRuntime;
|
|
case eSymbolTypeObjCIVar: return eAddressClassRuntime;
|
|
case eSymbolTypeReExported: return eAddressClassRuntime;
|
|
}
|
|
}
|
|
}
|
|
return eAddressClassUnknown;
|
|
}
|
|
|
|
DataBufferSP
|
|
ObjectFile::ReadMemory (const ProcessSP &process_sp, lldb::addr_t addr, size_t byte_size)
|
|
{
|
|
DataBufferSP data_sp;
|
|
if (process_sp)
|
|
{
|
|
std::unique_ptr<DataBufferHeap> data_ap (new DataBufferHeap (byte_size, 0));
|
|
Error error;
|
|
const size_t bytes_read = process_sp->ReadMemory (addr,
|
|
data_ap->GetBytes(),
|
|
data_ap->GetByteSize(),
|
|
error);
|
|
if (bytes_read == byte_size)
|
|
data_sp.reset (data_ap.release());
|
|
}
|
|
return data_sp;
|
|
}
|
|
|
|
size_t
|
|
ObjectFile::GetData (lldb::offset_t offset, size_t length, DataExtractor &data) const
|
|
{
|
|
// The entire file has already been mmap'ed into m_data, so just copy from there
|
|
// as the back mmap buffer will be shared with shared pointers.
|
|
return data.SetData (m_data, offset, length);
|
|
}
|
|
|
|
size_t
|
|
ObjectFile::CopyData (lldb::offset_t offset, size_t length, void *dst) const
|
|
{
|
|
// The entire file has already been mmap'ed into m_data, so just copy from there
|
|
// Note that the data remains in target byte order.
|
|
return m_data.CopyData (offset, length, dst);
|
|
}
|
|
|
|
|
|
size_t
|
|
ObjectFile::ReadSectionData (const Section *section, lldb::offset_t section_offset, void *dst, size_t dst_len) const
|
|
{
|
|
assert(section);
|
|
section_offset *= section->GetTargetByteSize();
|
|
|
|
// If some other objectfile owns this data, pass this to them.
|
|
if (section->GetObjectFile() != this)
|
|
return section->GetObjectFile()->ReadSectionData (section, section_offset, dst, dst_len);
|
|
|
|
if (IsInMemory())
|
|
{
|
|
ProcessSP process_sp (m_process_wp.lock());
|
|
if (process_sp)
|
|
{
|
|
Error error;
|
|
const addr_t base_load_addr = section->GetLoadBaseAddress (&process_sp->GetTarget());
|
|
if (base_load_addr != LLDB_INVALID_ADDRESS)
|
|
return process_sp->ReadMemory (base_load_addr + section_offset, dst, dst_len, error);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
const lldb::offset_t section_file_size = section->GetFileSize();
|
|
if (section_offset < section_file_size)
|
|
{
|
|
const size_t section_bytes_left = section_file_size - section_offset;
|
|
size_t section_dst_len = dst_len;
|
|
if (section_dst_len > section_bytes_left)
|
|
section_dst_len = section_bytes_left;
|
|
return CopyData (section->GetFileOffset() + section_offset, section_dst_len, dst);
|
|
}
|
|
else
|
|
{
|
|
if (section->GetType() == eSectionTypeZeroFill)
|
|
{
|
|
const uint64_t section_size = section->GetByteSize();
|
|
const uint64_t section_bytes_left = section_size - section_offset;
|
|
uint64_t section_dst_len = dst_len;
|
|
if (section_dst_len > section_bytes_left)
|
|
section_dst_len = section_bytes_left;
|
|
memset(dst, 0, section_dst_len);
|
|
return section_dst_len;
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
// Get the section data the file on disk
|
|
//----------------------------------------------------------------------
|
|
size_t
|
|
ObjectFile::ReadSectionData (const Section *section, DataExtractor& section_data) const
|
|
{
|
|
// If some other objectfile owns this data, pass this to them.
|
|
if (section->GetObjectFile() != this)
|
|
return section->GetObjectFile()->ReadSectionData (section, section_data);
|
|
|
|
if (IsInMemory())
|
|
{
|
|
ProcessSP process_sp (m_process_wp.lock());
|
|
if (process_sp)
|
|
{
|
|
const addr_t base_load_addr = section->GetLoadBaseAddress (&process_sp->GetTarget());
|
|
if (base_load_addr != LLDB_INVALID_ADDRESS)
|
|
{
|
|
DataBufferSP data_sp (ReadMemory (process_sp, base_load_addr, section->GetByteSize()));
|
|
if (data_sp)
|
|
{
|
|
section_data.SetData (data_sp, 0, data_sp->GetByteSize());
|
|
section_data.SetByteOrder (process_sp->GetByteOrder());
|
|
section_data.SetAddressByteSize (process_sp->GetAddressByteSize());
|
|
return section_data.GetByteSize();
|
|
}
|
|
}
|
|
}
|
|
return GetData(section->GetFileOffset(), section->GetFileSize(), section_data);
|
|
}
|
|
else
|
|
{
|
|
// The object file now contains a full mmap'ed copy of the object file data, so just use this
|
|
return MemoryMapSectionData (section, section_data);
|
|
}
|
|
}
|
|
|
|
size_t
|
|
ObjectFile::MemoryMapSectionData (const Section *section, DataExtractor& section_data) const
|
|
{
|
|
// If some other objectfile owns this data, pass this to them.
|
|
if (section->GetObjectFile() != this)
|
|
return section->GetObjectFile()->MemoryMapSectionData (section, section_data);
|
|
|
|
if (IsInMemory())
|
|
{
|
|
return ReadSectionData (section, section_data);
|
|
}
|
|
else
|
|
{
|
|
// The object file now contains a full mmap'ed copy of the object file data, so just use this
|
|
return GetData(section->GetFileOffset(), section->GetFileSize(), section_data);
|
|
}
|
|
}
|
|
|
|
|
|
bool
|
|
ObjectFile::SplitArchivePathWithObject (const char *path_with_object, FileSpec &archive_file, ConstString &archive_object, bool must_exist)
|
|
{
|
|
RegularExpression g_object_regex("(.*)\\(([^\\)]+)\\)$");
|
|
RegularExpression::Match regex_match(2);
|
|
if (g_object_regex.Execute (path_with_object, ®ex_match))
|
|
{
|
|
std::string path;
|
|
std::string obj;
|
|
if (regex_match.GetMatchAtIndex (path_with_object, 1, path) &&
|
|
regex_match.GetMatchAtIndex (path_with_object, 2, obj))
|
|
{
|
|
archive_file.SetFile (path.c_str(), false);
|
|
archive_object.SetCString(obj.c_str());
|
|
if (must_exist && !archive_file.Exists())
|
|
return false;
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void
|
|
ObjectFile::ClearSymtab ()
|
|
{
|
|
ModuleSP module_sp(GetModule());
|
|
if (module_sp)
|
|
{
|
|
std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
|
|
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT));
|
|
if (log)
|
|
log->Printf ("%p ObjectFile::ClearSymtab () symtab = %p",
|
|
static_cast<void*>(this),
|
|
static_cast<void*>(m_symtab_ap.get()));
|
|
m_symtab_ap.reset();
|
|
}
|
|
}
|
|
|
|
SectionList *
|
|
ObjectFile::GetSectionList(bool update_module_section_list)
|
|
{
|
|
if (m_sections_ap.get() == nullptr)
|
|
{
|
|
if (update_module_section_list)
|
|
{
|
|
ModuleSP module_sp(GetModule());
|
|
if (module_sp)
|
|
{
|
|
std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
|
|
CreateSections(*module_sp->GetUnifiedSectionList());
|
|
}
|
|
}
|
|
else
|
|
{
|
|
SectionList unified_section_list;
|
|
CreateSections(unified_section_list);
|
|
}
|
|
}
|
|
return m_sections_ap.get();
|
|
}
|
|
|
|
lldb::SymbolType
|
|
ObjectFile::GetSymbolTypeFromName (llvm::StringRef name,
|
|
lldb::SymbolType symbol_type_hint)
|
|
{
|
|
if (!name.empty())
|
|
{
|
|
if (name.startswith("_OBJC_"))
|
|
{
|
|
// ObjC
|
|
if (name.startswith("_OBJC_CLASS_$_"))
|
|
return lldb::eSymbolTypeObjCClass;
|
|
if (name.startswith("_OBJC_METACLASS_$_"))
|
|
return lldb::eSymbolTypeObjCMetaClass;
|
|
if (name.startswith("_OBJC_IVAR_$_"))
|
|
return lldb::eSymbolTypeObjCIVar;
|
|
}
|
|
else if (name.startswith(".objc_class_name_"))
|
|
{
|
|
// ObjC v1
|
|
return lldb::eSymbolTypeObjCClass;
|
|
}
|
|
}
|
|
return symbol_type_hint;
|
|
}
|
|
|
|
ConstString
|
|
ObjectFile::GetNextSyntheticSymbolName()
|
|
{
|
|
StreamString ss;
|
|
ConstString file_name = GetModule()->GetFileSpec().GetFilename();
|
|
ss.Printf("___lldb_unnamed_symbol%u$$%s", ++m_synthetic_symbol_idx, file_name.GetCString());
|
|
return ConstString(ss.GetData());
|
|
}
|
|
|