forked from OSchip/llvm-project
691 lines
27 KiB
C++
691 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/Symbol/ObjectFile.h"
|
|
#include "Plugins/ObjectContainer/BSD-Archive/ObjectContainerBSDArchive.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/ObjectContainer.h"
|
|
#include "lldb/Symbol/SymbolFile.h"
|
|
#include "lldb/Target/Target.h"
|
|
#include "lldb/Target/RegisterContext.h"
|
|
#include "lldb/Target/SectionLoadList.h"
|
|
#include "lldb/Target/Process.h"
|
|
#include "lldb/lldb-private.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(
|
|
LLVM_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(LLVM_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 §ion_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 §ion_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(llvm::StringRef("(.*)\\(([^\\)]+)\\)$"));
|
|
RegularExpression::Match regex_match(2);
|
|
if (g_object_regex.Execute(llvm::StringRef::withNullAsEmpty(path_with_object),
|
|
®ex_match)) {
|
|
std::string path;
|
|
std::string obj;
|
|
if (regex_match.GetMatchAtIndex(path_with_object, 1, path) &&
|
|
regex_match.GetMatchAtIndex(path_with_object, 2, obj)) {
|
|
archive_file.SetFile(path, false);
|
|
archive_object.SetCString(obj.c_str());
|
|
if (must_exist && !archive_file.Exists())
|
|
return false;
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void ObjectFile::ClearSymtab() {
|
|
ModuleSP module_sp(GetModule());
|
|
if (module_sp) {
|
|
std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
|
|
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_OBJECT));
|
|
if (log)
|
|
log->Printf("%p ObjectFile::ClearSymtab () symtab = %p",
|
|
static_cast<void *>(this),
|
|
static_cast<void *>(m_symtab_ap.get()));
|
|
m_symtab_ap.reset();
|
|
}
|
|
}
|
|
|
|
SectionList *ObjectFile::GetSectionList(bool update_module_section_list) {
|
|
if (m_sections_ap.get() == nullptr) {
|
|
if (update_module_section_list) {
|
|
ModuleSP module_sp(GetModule());
|
|
if (module_sp) {
|
|
std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
|
|
CreateSections(*module_sp->GetUnifiedSectionList());
|
|
}
|
|
} else {
|
|
SectionList unified_section_list;
|
|
CreateSections(unified_section_list);
|
|
}
|
|
}
|
|
return m_sections_ap.get();
|
|
}
|
|
|
|
lldb::SymbolType
|
|
ObjectFile::GetSymbolTypeFromName(llvm::StringRef name,
|
|
lldb::SymbolType symbol_type_hint) {
|
|
if (!name.empty()) {
|
|
if (name.startswith("_OBJC_")) {
|
|
// ObjC
|
|
if (name.startswith("_OBJC_CLASS_$_"))
|
|
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.GetString());
|
|
}
|
|
|
|
Error ObjectFile::LoadInMemory(Target &target, bool set_pc) {
|
|
Error error;
|
|
ProcessSP process = target.CalculateProcess();
|
|
if (!process)
|
|
return Error("No Process");
|
|
if (set_pc && !GetEntryPointAddress().IsValid())
|
|
return Error("No entry address in object file");
|
|
|
|
SectionList *section_list = GetSectionList();
|
|
if (!section_list)
|
|
return Error("No section in object file");
|
|
size_t section_count = section_list->GetNumSections(0);
|
|
for (size_t i = 0; i < section_count; ++i) {
|
|
SectionSP section_sp = section_list->GetSectionAtIndex(i);
|
|
addr_t addr = target.GetSectionLoadList().GetSectionLoadAddress(section_sp);
|
|
if (addr != LLDB_INVALID_ADDRESS) {
|
|
DataExtractor section_data;
|
|
// We can skip sections like bss
|
|
if (section_sp->GetFileSize() == 0)
|
|
continue;
|
|
section_sp->GetSectionData(section_data);
|
|
lldb::offset_t written = process->WriteMemory(
|
|
addr, section_data.GetDataStart(), section_data.GetByteSize(), error);
|
|
if (written != section_data.GetByteSize())
|
|
return error;
|
|
}
|
|
}
|
|
if (set_pc) {
|
|
ThreadList &thread_list = process->GetThreadList();
|
|
ThreadSP curr_thread(thread_list.GetSelectedThread());
|
|
RegisterContextSP reg_context(curr_thread->GetRegisterContext());
|
|
Address file_entry = GetEntryPointAddress();
|
|
reg_context->SetPC(file_entry.GetLoadAddress(&target));
|
|
}
|
|
return error;
|
|
}
|