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//===-- 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/lldb-private-log.h"
#include "lldb/Core/Log.h"
#include "lldb/Core/Module.h"
#include "lldb/Core/PluginManager.h"
#include "lldb/Core/RegularExpression.h"
#include "lldb/Core/Timer.h"
#include "lldb/Symbol/ObjectFile.h"
#include "lldb/Symbol/ObjectContainer.h"
#include "lldb/Symbol/SymbolFile.h"
using namespace lldb;
using namespace lldb_private;
ObjectFileSP
ObjectFile::FindPlugin (Module* module, const FileSpec* file, addr_t file_offset, addr_t file_size)
{
Timer scoped_timer (__PRETTY_FUNCTION__,
"ObjectFile::FindPlugin (module = %s/%s, file = %p, file_offset = 0x%z8.8x, file_size = 0x%z8.8x)",
module->GetFileSpec().GetDirectory().AsCString(),
module->GetFileSpec().GetFilename().AsCString(),
file, file_offset, file_size);
ObjectFileSP object_file_sp;
if (module != NULL)
{
if (file)
{
if (file_size == 0)
file_size = file->GetByteSize();
if (file_size == 0)
{
// Check for archive file with format "/path/to/archive.a(object.o)"
char path_with_object[PATH_MAX*2];
module->GetFileSpec().GetPath(path_with_object, sizeof(path_with_object));
RegularExpression g_object_regex("(.*)\\(([^\\)]+)\\)$");
if (g_object_regex.Execute (path_with_object, 2))
{
FileSpec archive_file;
std::string path;
std::string object;
if (g_object_regex.GetMatchAtIndex (path_with_object, 1, path) &&
g_object_regex.GetMatchAtIndex (path_with_object, 2, object))
{
archive_file.SetFile (path.c_str(), false);
file_size = archive_file.GetByteSize();
if (file_size > 0)
module->SetFileSpecAndObjectName (archive_file, ConstString(object.c_str()));
}
}
}
// No need to delegate further if (file_offset, file_size) exceeds the total file size.
// This is the base case.
// if (file_offset + file_size > file->GetByteSize())
// return NULL;
DataBufferSP file_header_data_sp(file->ReadFileContents(file_offset, 512));
uint32_t idx;
// Check if this is a normal object file by iterating through
// all object file plugin instances.
ObjectFileCreateInstance create_object_file_callback;
for (idx = 0; (create_object_file_callback = PluginManager::GetObjectFileCreateCallbackAtIndex(idx)) != NULL; ++idx)
{
object_file_sp.reset (create_object_file_callback(module, file_header_data_sp, 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.
ObjectContainerCreateInstance create_object_container_callback;
for (idx = 0; (create_object_container_callback = PluginManager::GetObjectContainerCreateCallbackAtIndex(idx)) != NULL; ++idx)
{
std::auto_ptr<ObjectContainer> object_container_ap(create_object_container_callback(module, file_header_data_sp, 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;
}
ObjectFile::ObjectFile (Module* module,
const FileSpec *file_spec_ptr,
addr_t offset,
addr_t length,
DataBufferSP& headerDataSP) :
ModuleChild (module),
m_file (), // This file could be different from the original module's file
m_type (eTypeInvalid),
m_strata (eStrataInvalid),
m_offset (offset),
m_length (length),
m_data (headerDataSP, endian::InlHostByteOrder(), 4),
m_unwind_table (*this)
{
if (file_spec_ptr)
m_file = *file_spec_ptr;
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT));
if (log)
{
if (m_file)
{
log->Printf ("%p ObjectFile::ObjectFile () module = %s/%s, file = %s/%s, offset = 0x%8.8llx, size = %llu\n",
this,
m_module->GetFileSpec().GetDirectory().AsCString(),
m_module->GetFileSpec().GetFilename().AsCString(),
m_file.GetDirectory().AsCString(),
m_file.GetFilename().AsCString(),
m_offset,
m_length);
}
else
{
log->Printf ("%p ObjectFile::ObjectFile () module = %s/%s, file = <NULL>, offset = 0x%8.8llx, size = %llu\n",
this,
m_module->GetFileSpec().GetDirectory().AsCString(),
m_module->GetFileSpec().GetFilename().AsCString(),
m_offset,
m_length);
}
}
}
ObjectFile::~ObjectFile()
{
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT));
if (log)
{
if (m_file)
{
log->Printf ("%p ObjectFile::~ObjectFile () module = %s/%s, file = %s/%s, offset = 0x%8.8llx, size = %llu\n",
this,
m_module->GetFileSpec().GetDirectory().AsCString(),
m_module->GetFileSpec().GetFilename().AsCString(),
m_file.GetDirectory().AsCString(),
m_file.GetFilename().AsCString(),
m_offset,
m_length);
}
else
{
log->Printf ("%p ObjectFile::~ObjectFile () module = %s/%s, file = <NULL>, offset = 0x%8.8llx, size = %llu\n",
this,
m_module->GetFileSpec().GetDirectory().AsCString(),
m_module->GetFileSpec().GetFilename().AsCString(),
m_offset,
m_length);
}
}
}
bool
ObjectFile::SetModulesArchitecture (const ArchSpec &new_arch)
{
return m_module->SetArchitecture (new_arch);
}
AddressClass
ObjectFile::GetAddressClass (addr_t file_addr)
{
Symtab *symtab = GetSymtab();
if (symtab)
{
Symbol *symbol = symtab->FindSymbolContainingFileAddress(file_addr);
if (symbol)
{
const AddressRange *range_ptr = symbol->GetAddressRangePtr();
if (range_ptr)
{
const Section *section = range_ptr->GetBaseAddress().GetSection();
if (section)
{
const SectionType section_type = section->GetType();
switch (section_type)
{
case eSectionTypeInvalid: return eAddressClassUnknown;
case eSectionTypeCode: return eAddressClassCode;
case eSectionTypeContainer: return eAddressClassUnknown;
case eSectionTypeData: return eAddressClassData;
case eSectionTypeDataCString: return eAddressClassData;
case eSectionTypeDataCStringPointers: return eAddressClassData;
case eSectionTypeDataSymbolAddress: return eAddressClassData;
case eSectionTypeData4: return eAddressClassData;
case eSectionTypeData8: return eAddressClassData;
case eSectionTypeData16: return eAddressClassData;
case eSectionTypeDataPointers: return eAddressClassData;
case eSectionTypeZeroFill: return eAddressClassData;
case eSectionTypeDataObjCMessageRefs: return eAddressClassData;
case eSectionTypeDataObjCCFStrings: return eAddressClassData;
case eSectionTypeDebug: return eAddressClassDebug;
case eSectionTypeDWARFDebugAbbrev: return eAddressClassDebug;
case eSectionTypeDWARFDebugAranges: return eAddressClassDebug;
case eSectionTypeDWARFDebugFrame: return eAddressClassDebug;
case eSectionTypeDWARFDebugInfo: return eAddressClassDebug;
case eSectionTypeDWARFDebugLine: return eAddressClassDebug;
case eSectionTypeDWARFDebugLoc: return eAddressClassDebug;
case eSectionTypeDWARFDebugMacInfo: return eAddressClassDebug;
case eSectionTypeDWARFDebugPubNames: return eAddressClassDebug;
case eSectionTypeDWARFDebugPubTypes: return eAddressClassDebug;
case eSectionTypeDWARFDebugRanges: return eAddressClassDebug;
case eSectionTypeDWARFDebugStr: return eAddressClassDebug;
case eSectionTypeDWARFAppleNames: return eAddressClassDebug;
case eSectionTypeDWARFAppleTypes: return eAddressClassDebug;
case eSectionTypeEHFrame: return eAddressClassRuntime;
case eSectionTypeOther: return eAddressClassUnknown;
}
}
}
const SymbolType symbol_type = symbol->GetType();
switch (symbol_type)
{
case eSymbolTypeAny: return eAddressClassUnknown;
case eSymbolTypeAbsolute: return eAddressClassUnknown;
case eSymbolTypeExtern: return eAddressClassUnknown;
case eSymbolTypeCode: return eAddressClassCode;
case eSymbolTypeTrampoline: 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;
}
}
}
return eAddressClassUnknown;
}
ObjectFileSP
ObjectFile::GetSP ()
{
// This object contains an instrusive ref count base class so we can
// easily make a shared pointer to this object
return ObjectFileSP (this);
}
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