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v811_spc009/external/llvm-project/lldb/source/Symbol/ObjectFile.cpp

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//===-- ObjectFile.cpp ----------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "lldb/Symbol/ObjectFile.h"
#include "lldb/Core/Module.h"
#include "lldb/Core/ModuleSpec.h"
#include "lldb/Core/PluginManager.h"
#include "lldb/Core/Section.h"
#include "lldb/Symbol/CallFrameInfo.h"
#include "lldb/Symbol/ObjectContainer.h"
#include "lldb/Symbol/SymbolFile.h"
#include "lldb/Target/Process.h"
#include "lldb/Target/SectionLoadList.h"
#include "lldb/Target/Target.h"
#include "lldb/Utility/DataBuffer.h"
#include "lldb/Utility/DataBufferHeap.h"
#include "lldb/Utility/Log.h"
#include "lldb/Utility/Timer.h"
#include "lldb/lldb-private.h"
using namespace lldb;
using namespace lldb_private;
char ObjectFile::ID;
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) {
static Timer::Category func_cat(LLVM_PRETTY_FUNCTION);
Timer scoped_timer(
func_cat,
"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;
if (!data_sp) {
const bool file_exists = FileSystem::Instance().Exists(*file);
// 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_up(
create_object_container_callback(module_sp, data_sp,
data_offset, file, file_offset,
file_size));
if (object_container_up)
object_file_sp = object_container_up->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 = FileSystem::Instance().CreateDataBuffer(file->GetPath(),
512, file_offset);
data_offset = 0;
}
}
if (!data_sp || data_sp->GetByteSize() == 0) {
// Check for archive file with format "/path/to/archive.a(object.o)"
llvm::SmallString<256> path_with_object;
module_sp->GetFileSpec().GetPath(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 = FileSystem::Instance().GetByteSize(archive_file);
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_up(
create_object_container_callback(module_sp, data_sp,
data_offset, file,
file_offset, file_size));
if (object_container_up)
object_file_sp = object_container_up->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 = FileSystem::Instance().CreateDataBuffer(
archive_file.GetPath(), 512, file_offset);
}
}
}
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_up(
create_object_container_callback(module_sp, data_sp, data_offset,
file, file_offset, file_size));
if (object_container_up)
object_file_sp = object_container_up->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) {
static Timer::Category func_cat(LLVM_PRETTY_FUNCTION);
Timer scoped_timer(func_cat,
"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) {
if (!data_sp)
data_sp = FileSystem::Instance().CreateDataBuffer(file.GetPath(), 512,
file_offset);
if (data_sp) {
if (file_size == 0) {
const lldb::offset_t actual_file_size =
FileSystem::Instance().GetByteSize(file);
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_process_wp(),
m_memory_addr(LLDB_INVALID_ADDRESS), m_sections_up(), m_symtab_up(),
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));
LLDB_LOGF(log,
"%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_process_wp(process_sp), m_memory_addr(header_addr), m_sections_up(),
m_symtab_up(), 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));
LLDB_LOGF(log,
"%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));
LLDB_LOGF(log, "%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 AddressClass::eUnknown;
case eSectionTypeCode:
return AddressClass::eCode;
case eSectionTypeContainer:
return AddressClass::eUnknown;
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 AddressClass::eData;
case eSectionTypeDebug:
case eSectionTypeDWARFDebugAbbrev:
case eSectionTypeDWARFDebugAbbrevDwo:
case eSectionTypeDWARFDebugAddr:
case eSectionTypeDWARFDebugAranges:
case eSectionTypeDWARFDebugCuIndex:
case eSectionTypeDWARFDebugFrame:
case eSectionTypeDWARFDebugInfo:
case eSectionTypeDWARFDebugInfoDwo:
case eSectionTypeDWARFDebugLine:
case eSectionTypeDWARFDebugLineStr:
case eSectionTypeDWARFDebugLoc:
case eSectionTypeDWARFDebugLocDwo:
case eSectionTypeDWARFDebugLocLists:
case eSectionTypeDWARFDebugLocListsDwo:
case eSectionTypeDWARFDebugMacInfo:
case eSectionTypeDWARFDebugMacro:
case eSectionTypeDWARFDebugNames:
case eSectionTypeDWARFDebugPubNames:
case eSectionTypeDWARFDebugPubTypes:
case eSectionTypeDWARFDebugRanges:
case eSectionTypeDWARFDebugRngLists:
case eSectionTypeDWARFDebugRngListsDwo:
case eSectionTypeDWARFDebugStr:
case eSectionTypeDWARFDebugStrDwo:
case eSectionTypeDWARFDebugStrOffsets:
case eSectionTypeDWARFDebugStrOffsetsDwo:
case eSectionTypeDWARFDebugTuIndex:
case eSectionTypeDWARFDebugTypes:
case eSectionTypeDWARFDebugTypesDwo:
case eSectionTypeDWARFAppleNames:
case eSectionTypeDWARFAppleTypes:
case eSectionTypeDWARFAppleNamespaces:
case eSectionTypeDWARFAppleObjC:
case eSectionTypeDWARFGNUDebugAltLink:
return AddressClass::eDebug;
case eSectionTypeEHFrame:
case eSectionTypeARMexidx:
case eSectionTypeARMextab:
case eSectionTypeCompactUnwind:
return AddressClass::eRuntime;
case eSectionTypeELFSymbolTable:
case eSectionTypeELFDynamicSymbols:
case eSectionTypeELFRelocationEntries:
case eSectionTypeELFDynamicLinkInfo:
case eSectionTypeOther:
return AddressClass::eUnknown;
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 AddressClass::eUnknown;
case eSymbolTypeAbsolute:
return AddressClass::eUnknown;
case eSymbolTypeCode:
return AddressClass::eCode;
case eSymbolTypeTrampoline:
return AddressClass::eCode;
case eSymbolTypeResolver:
return AddressClass::eCode;
case eSymbolTypeData:
return AddressClass::eData;
case eSymbolTypeRuntime:
return AddressClass::eRuntime;
case eSymbolTypeException:
return AddressClass::eRuntime;
case eSymbolTypeSourceFile:
return AddressClass::eDebug;
case eSymbolTypeHeaderFile:
return AddressClass::eDebug;
case eSymbolTypeObjectFile:
return AddressClass::eDebug;
case eSymbolTypeCommonBlock:
return AddressClass::eDebug;
case eSymbolTypeBlock:
return AddressClass::eDebug;
case eSymbolTypeLocal:
return AddressClass::eData;
case eSymbolTypeParam:
return AddressClass::eData;
case eSymbolTypeVariable:
return AddressClass::eData;
case eSymbolTypeVariableType:
return AddressClass::eDebug;
case eSymbolTypeLineEntry:
return AddressClass::eDebug;
case eSymbolTypeLineHeader:
return AddressClass::eDebug;
case eSymbolTypeScopeBegin:
return AddressClass::eDebug;
case eSymbolTypeScopeEnd:
return AddressClass::eDebug;
case eSymbolTypeAdditional:
return AddressClass::eUnknown;
case eSymbolTypeCompiler:
return AddressClass::eDebug;
case eSymbolTypeInstrumentation:
return AddressClass::eDebug;
case eSymbolTypeUndefined:
return AddressClass::eUnknown;
case eSymbolTypeObjCClass:
return AddressClass::eRuntime;
case eSymbolTypeObjCMetaClass:
return AddressClass::eRuntime;
case eSymbolTypeObjCIVar:
return AddressClass::eRuntime;
case eSymbolTypeReExported:
return AddressClass::eRuntime;
}
}
}
return AddressClass::eUnknown;
}
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_up(new DataBufferHeap(byte_size, 0));
Status error;
const size_t bytes_read = process_sp->ReadMemory(
addr, data_up->GetBytes(), data_up->GetByteSize(), error);
if (bytes_read == byte_size)
data_sp.reset(data_up.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(Section *section,
lldb::offset_t section_offset, void *dst,
size_t dst_len) {
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 (!section->IsRelocated())
RelocateSection(section);
if (IsInMemory()) {
ProcessSP process_sp(m_process_wp.lock());
if (process_sp) {
Status 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(Section *section,
DataExtractor &section_data) {
// If some other objectfile owns this data, pass this to them.
if (section->GetObjectFile() != this)
return section->GetObjectFile()->ReadSectionData(section, section_data);
if (!section->IsRelocated())
RelocateSection(section);
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();
}
}
}
}
// 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(llvm::StringRef path_with_object,
FileSpec &archive_file,
ConstString &archive_object,
bool must_exist) {
size_t len = path_with_object.size();
if (len < 2 || path_with_object.back() != ')')
return false;
llvm::StringRef archive = path_with_object.substr(0, path_with_object.rfind('('));
if (archive.empty())
return false;
llvm::StringRef object = path_with_object.substr(archive.size() + 1).drop_back();
archive_file.SetFile(archive, FileSpec::Style::native);
if (must_exist && !FileSystem::Instance().Exists(archive_file))
return false;
archive_object.SetString(object);
return true;
}
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));
LLDB_LOGF(log, "%p ObjectFile::ClearSymtab () symtab = %p",
static_cast<void *>(this),
static_cast<void *>(m_symtab_up.get()));
m_symtab_up.reset();
}
}
SectionList *ObjectFile::GetSectionList(bool update_module_section_list) {
if (m_sections_up == 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_up.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.GetString());
}
std::vector<ObjectFile::LoadableData>
ObjectFile::GetLoadableData(Target &target) {
std::vector<LoadableData> loadables;
SectionList *section_list = GetSectionList();
if (!section_list)
return loadables;
// Create a list of loadable data from loadable sections
size_t section_count = section_list->GetNumSections(0);
for (size_t i = 0; i < section_count; ++i) {
LoadableData loadable;
SectionSP section_sp = section_list->GetSectionAtIndex(i);
loadable.Dest =
target.GetSectionLoadList().GetSectionLoadAddress(section_sp);
if (loadable.Dest == LLDB_INVALID_ADDRESS)
continue;
// We can skip sections like bss
if (section_sp->GetFileSize() == 0)
continue;
DataExtractor section_data;
section_sp->GetSectionData(section_data);
loadable.Contents = llvm::ArrayRef<uint8_t>(section_data.GetDataStart(),
section_data.GetByteSize());
loadables.push_back(loadable);
}
return loadables;
}
std::unique_ptr<CallFrameInfo> ObjectFile::CreateCallFrameInfo() {
return {};
}
void ObjectFile::RelocateSection(lldb_private::Section *section)
{
}
DataBufferSP ObjectFile::MapFileData(const FileSpec &file, uint64_t Size,
uint64_t Offset) {
return FileSystem::Instance().CreateDataBuffer(file.GetPath(), Size, Offset);
}
void llvm::format_provider<ObjectFile::Type>::format(
const ObjectFile::Type &type, raw_ostream &OS, StringRef Style) {
switch (type) {
case ObjectFile::eTypeInvalid:
OS << "invalid";
break;
case ObjectFile::eTypeCoreFile:
OS << "core file";
break;
case ObjectFile::eTypeExecutable:
OS << "executable";
break;
case ObjectFile::eTypeDebugInfo:
OS << "debug info";
break;
case ObjectFile::eTypeDynamicLinker:
OS << "dynamic linker";
break;
case ObjectFile::eTypeObjectFile:
OS << "object file";
break;
case ObjectFile::eTypeSharedLibrary:
OS << "shared library";
break;
case ObjectFile::eTypeStubLibrary:
OS << "stub library";
break;
case ObjectFile::eTypeJIT:
OS << "jit";
break;
case ObjectFile::eTypeUnknown:
OS << "unknown";
break;
}
}
void llvm::format_provider<ObjectFile::Strata>::format(
const ObjectFile::Strata &strata, raw_ostream &OS, StringRef Style) {
switch (strata) {
case ObjectFile::eStrataInvalid:
OS << "invalid";
break;
case ObjectFile::eStrataUnknown:
OS << "unknown";
break;
case ObjectFile::eStrataUser:
OS << "user";
break;
case ObjectFile::eStrataKernel:
OS << "kernel";
break;
case ObjectFile::eStrataRawImage:
OS << "raw image";
break;
case ObjectFile::eStrataJIT:
OS << "jit";
break;
}
}
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