forked from OSchip/llvm-project
				
			
		
			
				
	
	
		
			670 lines
		
	
	
		
			27 KiB
		
	
	
	
		
			C++
		
	
	
	
			
		
		
	
	
			670 lines
		
	
	
		
			27 KiB
		
	
	
	
		
			C++
		
	
	
	
//===-- ObjectFile.cpp ------------------------------------------*- C++ -*-===//
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//
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//                     The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/lldb-private.h"
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#include "lldb/Core/DataBuffer.h"
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#include "lldb/Core/DataBufferHeap.h"
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#include "lldb/Core/Log.h"
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#include "lldb/Core/Module.h"
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#include "lldb/Core/ModuleSpec.h"
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#include "lldb/Core/PluginManager.h"
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#include "lldb/Core/RegularExpression.h"
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#include "lldb/Core/Section.h"
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#include "lldb/Core/Timer.h"
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#include "lldb/Symbol/ObjectFile.h"
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#include "lldb/Symbol/ObjectContainer.h"
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#include "lldb/Symbol/SymbolFile.h"
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#include "lldb/Target/Process.h"
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#include "Plugins/ObjectContainer/BSD-Archive/ObjectContainerBSDArchive.h"
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using namespace lldb;
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using namespace lldb_private;
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ObjectFileSP
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ObjectFile::FindPlugin (const lldb::ModuleSP &module_sp,
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                        const FileSpec* file,
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                        lldb::offset_t file_offset,
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                        lldb::offset_t file_size,
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                        DataBufferSP &data_sp,
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                        lldb::offset_t &data_offset)
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{
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    ObjectFileSP object_file_sp;
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    if (module_sp)
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    {
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        Timer scoped_timer (__PRETTY_FUNCTION__,
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                            "ObjectFile::FindPlugin (module = %s, file = %p, file_offset = 0x%8.8" PRIx64 ", file_size = 0x%8.8" PRIx64 ")",
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                            module_sp->GetFileSpec().GetPath().c_str(),
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                            static_cast<const void*>(file),
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                            static_cast<uint64_t>(file_offset),
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                            static_cast<uint64_t>(file_size));
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        if (file)
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        {
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            FileSpec archive_file;
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            ObjectContainerCreateInstance create_object_container_callback;
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            const bool file_exists = file->Exists();
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            if (!data_sp)
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            {
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                // We have an object name which most likely means we have
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                // a .o file in a static archive (.a file). Try and see if
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                // we have a cached archive first without reading any data
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                // first
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                if (file_exists && module_sp->GetObjectName())
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                {
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                    for (uint32_t idx = 0; (create_object_container_callback = PluginManager::GetObjectContainerCreateCallbackAtIndex(idx)) != nullptr; ++idx)
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                    {
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                        std::unique_ptr<ObjectContainer> object_container_ap(create_object_container_callback(module_sp, data_sp, data_offset, file, file_offset, file_size));
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                        if (object_container_ap.get())
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                            object_file_sp = object_container_ap->GetObjectFile(file);
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                        if (object_file_sp.get())
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                            return object_file_sp;
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                    }
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                }
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                // Ok, we didn't find any containers that have a named object, now
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                // lets read the first 512 bytes from the file so the object file
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                // and object container plug-ins can use these bytes to see if they
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                // can parse this file.
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                if (file_size > 0)
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                {
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                    data_sp = file->ReadFileContents(file_offset, std::min<size_t>(512, file_size));
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                    data_offset = 0;
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                }
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            }
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            if (!data_sp || data_sp->GetByteSize() == 0)
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            {
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                // Check for archive file with format "/path/to/archive.a(object.o)"
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                char path_with_object[PATH_MAX*2];
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                module_sp->GetFileSpec().GetPath(path_with_object, sizeof(path_with_object));
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                ConstString archive_object;
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                const bool must_exist = true;
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                if (ObjectFile::SplitArchivePathWithObject (path_with_object, archive_file, archive_object, must_exist))
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                {
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                    file_size = archive_file.GetByteSize();
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                    if (file_size > 0)
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                    {
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                        file = &archive_file;
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                        module_sp->SetFileSpecAndObjectName (archive_file, archive_object);
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                        // Check if this is a object container by iterating through all object
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                        // container plugin instances and then trying to get an object file
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                        // from the container plugins since we had a name. Also, don't read
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                        // ANY data in case there is data cached in the container plug-ins
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                        // (like BSD archives caching the contained objects within an file).
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                        for (uint32_t idx = 0; (create_object_container_callback = PluginManager::GetObjectContainerCreateCallbackAtIndex(idx)) != nullptr; ++idx)
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                        {
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                            std::unique_ptr<ObjectContainer> object_container_ap(create_object_container_callback(module_sp, data_sp, data_offset, file, file_offset, file_size));
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                            if (object_container_ap.get())
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                                object_file_sp = object_container_ap->GetObjectFile(file);
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                            if (object_file_sp.get())
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                                return object_file_sp;
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                        }
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                        // We failed to find any cached object files in the container
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                        // plug-ins, so lets read the first 512 bytes and try again below...
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                        data_sp = archive_file.ReadFileContents(file_offset, 512);
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                    }
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                }
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            }
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            if (data_sp && data_sp->GetByteSize() > 0)
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            {
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                // Check if this is a normal object file by iterating through
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                // all object file plugin instances.
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                ObjectFileCreateInstance create_object_file_callback;
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                for (uint32_t idx = 0; (create_object_file_callback = PluginManager::GetObjectFileCreateCallbackAtIndex(idx)) != nullptr; ++idx)
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                {
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                    object_file_sp.reset (create_object_file_callback(module_sp, data_sp, data_offset, file, file_offset, file_size));
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                    if (object_file_sp.get())
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                        return object_file_sp;
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                }
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                // Check if this is a object container by iterating through
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                // all object container plugin instances and then trying to get
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                // an object file from the container.
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                for (uint32_t idx = 0; (create_object_container_callback = PluginManager::GetObjectContainerCreateCallbackAtIndex(idx)) != nullptr; ++idx)
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                {
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                    std::unique_ptr<ObjectContainer> object_container_ap(create_object_container_callback(module_sp, data_sp, data_offset, file, file_offset, file_size));
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                    if (object_container_ap.get())
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                        object_file_sp = object_container_ap->GetObjectFile(file);
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                    if (object_file_sp.get())
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                        return object_file_sp;
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                }
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            }
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        }
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    }
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    // We didn't find it, so clear our shared pointer in case it
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    // contains anything and return an empty shared pointer
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    object_file_sp.reset();
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    return object_file_sp;
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}
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ObjectFileSP
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ObjectFile::FindPlugin (const lldb::ModuleSP &module_sp, 
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                        const ProcessSP &process_sp,
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                        lldb::addr_t header_addr,
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                        DataBufferSP &data_sp)
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{
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    ObjectFileSP object_file_sp;
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    if (module_sp)
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    {
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        Timer scoped_timer (__PRETTY_FUNCTION__,
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                            "ObjectFile::FindPlugin (module = %s, process = %p, header_addr = 0x%" PRIx64 ")",
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                            module_sp->GetFileSpec().GetPath().c_str(),
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                            static_cast<void*>(process_sp.get()), header_addr);
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        uint32_t idx;
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        // Check if this is a normal object file by iterating through
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        // all object file plugin instances.
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        ObjectFileCreateMemoryInstance create_callback;
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        for (idx = 0; (create_callback = PluginManager::GetObjectFileCreateMemoryCallbackAtIndex(idx)) != nullptr; ++idx)
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        {
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            object_file_sp.reset (create_callback(module_sp, data_sp, process_sp, header_addr));
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            if (object_file_sp.get())
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                return object_file_sp;
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        }
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    }
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    // We didn't find it, so clear our shared pointer in case it
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    // contains anything and return an empty shared pointer
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    object_file_sp.reset();
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    return object_file_sp;
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}
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size_t
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ObjectFile::GetModuleSpecifications (const FileSpec &file,
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                                     lldb::offset_t file_offset,
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                                     lldb::offset_t file_size,
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                                     ModuleSpecList &specs)
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{
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    DataBufferSP data_sp (file.ReadFileContents(file_offset, 512));
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    if (data_sp)
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    {
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        if (file_size == 0)
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        {
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            const lldb::offset_t actual_file_size = file.GetByteSize();
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            if (actual_file_size > file_offset)
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                file_size = actual_file_size - file_offset;
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        }
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        return ObjectFile::GetModuleSpecifications (file,       // file spec
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                                                    data_sp,    // data bytes
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                                                    0,          // data offset
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                                                    file_offset,// file offset
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                                                    file_size,  // file length
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                                                    specs);
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    }
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    return 0;
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}
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size_t
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ObjectFile::GetModuleSpecifications (const lldb_private::FileSpec& file,
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                                     lldb::DataBufferSP& data_sp,
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                                     lldb::offset_t data_offset,
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                                     lldb::offset_t file_offset,
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                                     lldb::offset_t file_size,
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                                     lldb_private::ModuleSpecList &specs)
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{
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    const size_t initial_count = specs.GetSize();
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    ObjectFileGetModuleSpecifications callback;
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    uint32_t i;
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    // Try the ObjectFile plug-ins
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    for (i = 0; (callback = PluginManager::GetObjectFileGetModuleSpecificationsCallbackAtIndex(i)) != nullptr; ++i)
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    {
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        if (callback (file, data_sp, data_offset, file_offset, file_size, specs) > 0)
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            return specs.GetSize() - initial_count;
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    }
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    // Try the ObjectContainer plug-ins
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    for (i = 0; (callback = PluginManager::GetObjectContainerGetModuleSpecificationsCallbackAtIndex(i)) != nullptr; ++i)
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    {
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        if (callback (file, data_sp, data_offset, file_offset, file_size, specs) > 0)
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            return specs.GetSize() - initial_count;
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    }
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    return 0;
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}
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ObjectFile::ObjectFile (const lldb::ModuleSP &module_sp,
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                        const FileSpec *file_spec_ptr,
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                        lldb::offset_t file_offset,
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                        lldb::offset_t length,
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                        const lldb::DataBufferSP& data_sp,
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                        lldb::offset_t data_offset) :
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    ModuleChild (module_sp),
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    m_file (),  // This file could be different from the original module's file
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    m_type (eTypeInvalid),
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    m_strata (eStrataInvalid),
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    m_file_offset (file_offset),
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    m_length (length),
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    m_data (),
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    m_unwind_table (*this),
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    m_process_wp(),
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    m_memory_addr (LLDB_INVALID_ADDRESS),
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    m_sections_ap(),
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    m_symtab_ap (),
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    m_synthetic_symbol_idx (0)
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{
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    if (file_spec_ptr)
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        m_file = *file_spec_ptr;
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    if (data_sp)
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        m_data.SetData (data_sp, data_offset, length);
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    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT));
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    if (log)
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        log->Printf ("%p ObjectFile::ObjectFile() module = %p (%s), file = %s, file_offset = 0x%8.8" PRIx64 ", size = %" PRIu64,
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                     static_cast<void*>(this),
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                     static_cast<void*>(module_sp.get()),
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                     module_sp->GetSpecificationDescription().c_str(),
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                     m_file ? m_file.GetPath().c_str() : "<NULL>",
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                     m_file_offset, m_length);
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}
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ObjectFile::ObjectFile (const lldb::ModuleSP &module_sp, 
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                        const ProcessSP &process_sp,
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                        lldb::addr_t header_addr, 
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                        DataBufferSP& header_data_sp) :
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    ModuleChild (module_sp),
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    m_file (),
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    m_type (eTypeInvalid),
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    m_strata (eStrataInvalid),
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    m_file_offset (0),
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    m_length (0),
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    m_data (),
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    m_unwind_table (*this),
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    m_process_wp (process_sp),
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    m_memory_addr (header_addr),
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    m_sections_ap(),
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    m_symtab_ap (),
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    m_synthetic_symbol_idx (0)
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{
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    if (header_data_sp)
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        m_data.SetData (header_data_sp, 0, header_data_sp->GetByteSize());
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    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT));
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    if (log)
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        log->Printf ("%p ObjectFile::ObjectFile() module = %p (%s), process = %p, header_addr = 0x%" PRIx64,
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                     static_cast<void*>(this),
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                     static_cast<void*>(module_sp.get()),
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                     module_sp->GetSpecificationDescription().c_str(),
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                     static_cast<void*>(process_sp.get()), m_memory_addr);
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}
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ObjectFile::~ObjectFile()
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{
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    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT));
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    if (log)
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        log->Printf ("%p ObjectFile::~ObjectFile ()\n",
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                     static_cast<void*>(this));
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}
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bool 
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ObjectFile::SetModulesArchitecture (const ArchSpec &new_arch)
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{
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    ModuleSP module_sp (GetModule());
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    if (module_sp)
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        return module_sp->SetArchitecture (new_arch);
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    return false;
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}
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AddressClass
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ObjectFile::GetAddressClass (addr_t file_addr)
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{
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    Symtab *symtab = GetSymtab();
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    if (symtab)
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    {
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        Symbol *symbol = symtab->FindSymbolContainingFileAddress(file_addr);
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        if (symbol)
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        {
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            if (symbol->ValueIsAddress())
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            {
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                const SectionSP section_sp (symbol->GetAddressRef().GetSection());
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                if (section_sp)
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                {
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                    const SectionType section_type = section_sp->GetType();
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                    switch (section_type)
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                    {
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                    case eSectionTypeInvalid:
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                        return eAddressClassUnknown;
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                    case eSectionTypeCode:
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                        return eAddressClassCode;
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                    case eSectionTypeContainer:
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                        return eAddressClassUnknown;
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                    case eSectionTypeData:
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                    case eSectionTypeDataCString:
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                    case eSectionTypeDataCStringPointers:
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                    case eSectionTypeDataSymbolAddress:
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                    case eSectionTypeData4:
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                    case eSectionTypeData8:
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                    case eSectionTypeData16:
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                    case eSectionTypeDataPointers:
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                    case eSectionTypeZeroFill:
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                    case eSectionTypeDataObjCMessageRefs:
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                    case eSectionTypeDataObjCCFStrings:
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                    case eSectionTypeGoSymtab:
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                        return eAddressClassData;
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                    case eSectionTypeDebug:
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                    case eSectionTypeDWARFDebugAbbrev:
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                    case eSectionTypeDWARFDebugAddr:
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                    case eSectionTypeDWARFDebugAranges:
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                    case eSectionTypeDWARFDebugFrame:
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                    case eSectionTypeDWARFDebugInfo:
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                    case eSectionTypeDWARFDebugLine:
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                    case eSectionTypeDWARFDebugLoc:
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                    case eSectionTypeDWARFDebugMacInfo:
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                    case eSectionTypeDWARFDebugMacro:
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                    case eSectionTypeDWARFDebugPubNames:
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                    case eSectionTypeDWARFDebugPubTypes:
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						|
                    case eSectionTypeDWARFDebugRanges:
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                    case eSectionTypeDWARFDebugStr:
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						|
                    case eSectionTypeDWARFDebugStrOffsets:
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						|
                    case eSectionTypeDWARFAppleNames:
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                    case eSectionTypeDWARFAppleTypes:
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                    case eSectionTypeDWARFAppleNamespaces:
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                    case eSectionTypeDWARFAppleObjC:
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                        return eAddressClassDebug;
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                    case eSectionTypeEHFrame:
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                    case eSectionTypeARMexidx:
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                    case eSectionTypeARMextab:
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                    case eSectionTypeCompactUnwind:
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                        return eAddressClassRuntime;
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                    case eSectionTypeELFSymbolTable:
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                    case eSectionTypeELFDynamicSymbols:
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                    case eSectionTypeELFRelocationEntries:
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                    case eSectionTypeELFDynamicLinkInfo:
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						|
                    case eSectionTypeOther:
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                        return eAddressClassUnknown;
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                    case eSectionTypeAbsoluteAddress:
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                        // In case of absolute sections decide the address class based on the symbol
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                        // type because the section type isn't specify if it is a code or a data
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                        // section.
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                        break;
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                    }
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                }
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            }
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            const SymbolType symbol_type = symbol->GetType();
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            switch (symbol_type)
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            {
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            case eSymbolTypeAny:            return eAddressClassUnknown;
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            case eSymbolTypeAbsolute:       return eAddressClassUnknown;
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						|
            case eSymbolTypeCode:           return eAddressClassCode;
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						|
            case eSymbolTypeTrampoline:     return eAddressClassCode;
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            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)
 | 
						|
    {
 | 
						|
        lldb_private::Mutex::Locker locker(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)
 | 
						|
            {
 | 
						|
                lldb_private::Mutex::Locker locker(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());
 | 
						|
}
 | 
						|
 |