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v811_spc009/external/llvm-project/lldb/source/Plugins/ObjectFile/PECOFF/ObjectFilePECOFF.cpp

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//===-- ObjectFilePECOFF.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 "ObjectFilePECOFF.h"
#include "PECallFrameInfo.h"
#include "WindowsMiniDump.h"
#include "lldb/Core/FileSpecList.h"
#include "lldb/Core/Module.h"
#include "lldb/Core/ModuleSpec.h"
#include "lldb/Core/PluginManager.h"
#include "lldb/Core/Section.h"
#include "lldb/Core/StreamFile.h"
#include "lldb/Symbol/ObjectFile.h"
#include "lldb/Target/Process.h"
#include "lldb/Target/SectionLoadList.h"
#include "lldb/Target/Target.h"
#include "lldb/Utility/ArchSpec.h"
#include "lldb/Utility/DataBufferHeap.h"
#include "lldb/Utility/FileSpec.h"
#include "lldb/Utility/Log.h"
#include "lldb/Utility/StreamString.h"
#include "lldb/Utility/Timer.h"
#include "lldb/Utility/UUID.h"
#include "llvm/BinaryFormat/COFF.h"
#include "llvm/Object/COFFImportFile.h"
#include "llvm/Support/Error.h"
#include "llvm/Support/MemoryBuffer.h"
#define IMAGE_DOS_SIGNATURE 0x5A4D // MZ
#define IMAGE_NT_SIGNATURE 0x00004550 // PE00
#define OPT_HEADER_MAGIC_PE32 0x010b
#define OPT_HEADER_MAGIC_PE32_PLUS 0x020b
using namespace lldb;
using namespace lldb_private;
LLDB_PLUGIN_DEFINE(ObjectFilePECOFF)
static UUID GetCoffUUID(llvm::object::COFFObjectFile &coff_obj) {
const llvm::codeview::DebugInfo *pdb_info = nullptr;
llvm::StringRef pdb_file;
if (!coff_obj.getDebugPDBInfo(pdb_info, pdb_file) && pdb_info) {
if (pdb_info->PDB70.CVSignature == llvm::OMF::Signature::PDB70) {
UUID::CvRecordPdb70 info;
memcpy(&info.Uuid, pdb_info->PDB70.Signature, sizeof(info.Uuid));
info.Age = pdb_info->PDB70.Age;
return UUID::fromCvRecord(info);
}
}
return UUID();
}
char ObjectFilePECOFF::ID;
void ObjectFilePECOFF::Initialize() {
PluginManager::RegisterPlugin(
GetPluginNameStatic(), GetPluginDescriptionStatic(), CreateInstance,
CreateMemoryInstance, GetModuleSpecifications, SaveCore);
}
void ObjectFilePECOFF::Terminate() {
PluginManager::UnregisterPlugin(CreateInstance);
}
lldb_private::ConstString ObjectFilePECOFF::GetPluginNameStatic() {
static ConstString g_name("pe-coff");
return g_name;
}
const char *ObjectFilePECOFF::GetPluginDescriptionStatic() {
return "Portable Executable and Common Object File Format object file reader "
"(32 and 64 bit)";
}
ObjectFile *ObjectFilePECOFF::CreateInstance(const lldb::ModuleSP &module_sp,
DataBufferSP &data_sp,
lldb::offset_t data_offset,
const lldb_private::FileSpec *file_p,
lldb::offset_t file_offset,
lldb::offset_t length) {
FileSpec file = file_p ? *file_p : FileSpec();
if (!data_sp) {
data_sp = MapFileData(file, length, file_offset);
if (!data_sp)
return nullptr;
data_offset = 0;
}
if (!ObjectFilePECOFF::MagicBytesMatch(data_sp))
return nullptr;
// Update the data to contain the entire file if it doesn't already
if (data_sp->GetByteSize() < length) {
data_sp = MapFileData(file, length, file_offset);
if (!data_sp)
return nullptr;
}
auto objfile_up = std::make_unique<ObjectFilePECOFF>(
module_sp, data_sp, data_offset, file_p, file_offset, length);
if (!objfile_up || !objfile_up->ParseHeader())
return nullptr;
// Cache coff binary.
if (!objfile_up->CreateBinary())
return nullptr;
return objfile_up.release();
}
ObjectFile *ObjectFilePECOFF::CreateMemoryInstance(
const lldb::ModuleSP &module_sp, lldb::DataBufferSP &data_sp,
const lldb::ProcessSP &process_sp, lldb::addr_t header_addr) {
if (!data_sp || !ObjectFilePECOFF::MagicBytesMatch(data_sp))
return nullptr;
auto objfile_up = std::make_unique<ObjectFilePECOFF>(
module_sp, data_sp, process_sp, header_addr);
if (objfile_up.get() && objfile_up->ParseHeader()) {
return objfile_up.release();
}
return nullptr;
}
size_t ObjectFilePECOFF::GetModuleSpecifications(
const lldb_private::FileSpec &file, lldb::DataBufferSP &data_sp,
lldb::offset_t data_offset, lldb::offset_t file_offset,
lldb::offset_t length, lldb_private::ModuleSpecList &specs) {
const size_t initial_count = specs.GetSize();
if (!data_sp || !ObjectFilePECOFF::MagicBytesMatch(data_sp))
return initial_count;
Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_OBJECT));
if (data_sp->GetByteSize() < length)
if (DataBufferSP full_sp = MapFileData(file, -1, file_offset))
data_sp = std::move(full_sp);
auto binary = llvm::object::createBinary(llvm::MemoryBufferRef(
toStringRef(data_sp->GetData()), file.GetFilename().GetStringRef()));
if (!binary) {
LLDB_LOG_ERROR(log, binary.takeError(),
"Failed to create binary for file ({1}): {0}", file);
return initial_count;
}
auto *COFFObj = llvm::dyn_cast<llvm::object::COFFObjectFile>(binary->get());
if (!COFFObj)
return initial_count;
ModuleSpec module_spec(file);
ArchSpec &spec = module_spec.GetArchitecture();
lldb_private::UUID &uuid = module_spec.GetUUID();
if (!uuid.IsValid())
uuid = GetCoffUUID(*COFFObj);
switch (COFFObj->getMachine()) {
case MachineAmd64:
spec.SetTriple("x86_64-pc-windows");
specs.Append(module_spec);
break;
case MachineX86:
spec.SetTriple("i386-pc-windows");
specs.Append(module_spec);
spec.SetTriple("i686-pc-windows");
specs.Append(module_spec);
break;
case MachineArmNt:
spec.SetTriple("armv7-pc-windows");
specs.Append(module_spec);
break;
case MachineArm64:
spec.SetTriple("aarch64-pc-windows");
specs.Append(module_spec);
break;
default:
break;
}
return specs.GetSize() - initial_count;
}
bool ObjectFilePECOFF::SaveCore(const lldb::ProcessSP &process_sp,
const lldb_private::FileSpec &outfile,
lldb_private::Status &error) {
return SaveMiniDump(process_sp, outfile, error);
}
bool ObjectFilePECOFF::MagicBytesMatch(DataBufferSP &data_sp) {
DataExtractor data(data_sp, eByteOrderLittle, 4);
lldb::offset_t offset = 0;
uint16_t magic = data.GetU16(&offset);
return magic == IMAGE_DOS_SIGNATURE;
}
lldb::SymbolType ObjectFilePECOFF::MapSymbolType(uint16_t coff_symbol_type) {
// TODO: We need to complete this mapping of COFF symbol types to LLDB ones.
// For now, here's a hack to make sure our function have types.
const auto complex_type =
coff_symbol_type >> llvm::COFF::SCT_COMPLEX_TYPE_SHIFT;
if (complex_type == llvm::COFF::IMAGE_SYM_DTYPE_FUNCTION) {
return lldb::eSymbolTypeCode;
}
return lldb::eSymbolTypeInvalid;
}
bool ObjectFilePECOFF::CreateBinary() {
if (m_binary)
return true;
Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_OBJECT));
auto binary = llvm::object::createBinary(llvm::MemoryBufferRef(
toStringRef(m_data.GetData()), m_file.GetFilename().GetStringRef()));
if (!binary) {
LLDB_LOG_ERROR(log, binary.takeError(),
"Failed to create binary for file ({1}): {0}", m_file);
return false;
}
// Make sure we only handle COFF format.
m_binary =
llvm::unique_dyn_cast<llvm::object::COFFObjectFile>(std::move(*binary));
if (!m_binary)
return false;
LLDB_LOG(log, "this = {0}, module = {1} ({2}), file = {3}, binary = {4}",
this, GetModule().get(), GetModule()->GetSpecificationDescription(),
m_file.GetPath(), m_binary.get());
return true;
}
ObjectFilePECOFF::ObjectFilePECOFF(const lldb::ModuleSP &module_sp,
DataBufferSP &data_sp,
lldb::offset_t data_offset,
const FileSpec *file,
lldb::offset_t file_offset,
lldb::offset_t length)
: ObjectFile(module_sp, file, file_offset, length, data_sp, data_offset),
m_dos_header(), m_coff_header(), m_sect_headers(),
m_entry_point_address(), m_deps_filespec() {
::memset(&m_dos_header, 0, sizeof(m_dos_header));
::memset(&m_coff_header, 0, sizeof(m_coff_header));
}
ObjectFilePECOFF::ObjectFilePECOFF(const lldb::ModuleSP &module_sp,
DataBufferSP &header_data_sp,
const lldb::ProcessSP &process_sp,
addr_t header_addr)
: ObjectFile(module_sp, process_sp, header_addr, header_data_sp),
m_dos_header(), m_coff_header(), m_sect_headers(),
m_entry_point_address(), m_deps_filespec() {
::memset(&m_dos_header, 0, sizeof(m_dos_header));
::memset(&m_coff_header, 0, sizeof(m_coff_header));
}
ObjectFilePECOFF::~ObjectFilePECOFF() {}
bool ObjectFilePECOFF::ParseHeader() {
ModuleSP module_sp(GetModule());
if (module_sp) {
std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
m_sect_headers.clear();
m_data.SetByteOrder(eByteOrderLittle);
lldb::offset_t offset = 0;
if (ParseDOSHeader(m_data, m_dos_header)) {
offset = m_dos_header.e_lfanew;
uint32_t pe_signature = m_data.GetU32(&offset);
if (pe_signature != IMAGE_NT_SIGNATURE)
return false;
if (ParseCOFFHeader(m_data, &offset, m_coff_header)) {
if (m_coff_header.hdrsize > 0)
ParseCOFFOptionalHeader(&offset);
ParseSectionHeaders(offset);
}
m_data.SetAddressByteSize(GetAddressByteSize());
return true;
}
}
return false;
}
bool ObjectFilePECOFF::SetLoadAddress(Target &target, addr_t value,
bool value_is_offset) {
bool changed = false;
ModuleSP module_sp = GetModule();
if (module_sp) {
size_t num_loaded_sections = 0;
SectionList *section_list = GetSectionList();
if (section_list) {
if (!value_is_offset) {
value -= m_image_base;
}
const size_t num_sections = section_list->GetSize();
size_t sect_idx = 0;
for (sect_idx = 0; sect_idx < num_sections; ++sect_idx) {
// Iterate through the object file sections to find all of the sections
// that have SHF_ALLOC in their flag bits.
SectionSP section_sp(section_list->GetSectionAtIndex(sect_idx));
if (section_sp && !section_sp->IsThreadSpecific()) {
if (target.GetSectionLoadList().SetSectionLoadAddress(
section_sp, section_sp->GetFileAddress() + value))
++num_loaded_sections;
}
}
changed = num_loaded_sections > 0;
}
}
return changed;
}
ByteOrder ObjectFilePECOFF::GetByteOrder() const { return eByteOrderLittle; }
bool ObjectFilePECOFF::IsExecutable() const {
return (m_coff_header.flags & llvm::COFF::IMAGE_FILE_DLL) == 0;
}
uint32_t ObjectFilePECOFF::GetAddressByteSize() const {
if (m_coff_header_opt.magic == OPT_HEADER_MAGIC_PE32_PLUS)
return 8;
else if (m_coff_header_opt.magic == OPT_HEADER_MAGIC_PE32)
return 4;
return 4;
}
// NeedsEndianSwap
//
// Return true if an endian swap needs to occur when extracting data from this
// file.
bool ObjectFilePECOFF::NeedsEndianSwap() const {
#if defined(__LITTLE_ENDIAN__)
return false;
#else
return true;
#endif
}
// ParseDOSHeader
bool ObjectFilePECOFF::ParseDOSHeader(DataExtractor &data,
dos_header_t &dos_header) {
bool success = false;
lldb::offset_t offset = 0;
success = data.ValidOffsetForDataOfSize(0, sizeof(dos_header));
if (success) {
dos_header.e_magic = data.GetU16(&offset); // Magic number
success = dos_header.e_magic == IMAGE_DOS_SIGNATURE;
if (success) {
dos_header.e_cblp = data.GetU16(&offset); // Bytes on last page of file
dos_header.e_cp = data.GetU16(&offset); // Pages in file
dos_header.e_crlc = data.GetU16(&offset); // Relocations
dos_header.e_cparhdr =
data.GetU16(&offset); // Size of header in paragraphs
dos_header.e_minalloc =
data.GetU16(&offset); // Minimum extra paragraphs needed
dos_header.e_maxalloc =
data.GetU16(&offset); // Maximum extra paragraphs needed
dos_header.e_ss = data.GetU16(&offset); // Initial (relative) SS value
dos_header.e_sp = data.GetU16(&offset); // Initial SP value
dos_header.e_csum = data.GetU16(&offset); // Checksum
dos_header.e_ip = data.GetU16(&offset); // Initial IP value
dos_header.e_cs = data.GetU16(&offset); // Initial (relative) CS value
dos_header.e_lfarlc =
data.GetU16(&offset); // File address of relocation table
dos_header.e_ovno = data.GetU16(&offset); // Overlay number
dos_header.e_res[0] = data.GetU16(&offset); // Reserved words
dos_header.e_res[1] = data.GetU16(&offset); // Reserved words
dos_header.e_res[2] = data.GetU16(&offset); // Reserved words
dos_header.e_res[3] = data.GetU16(&offset); // Reserved words
dos_header.e_oemid =
data.GetU16(&offset); // OEM identifier (for e_oeminfo)
dos_header.e_oeminfo =
data.GetU16(&offset); // OEM information; e_oemid specific
dos_header.e_res2[0] = data.GetU16(&offset); // Reserved words
dos_header.e_res2[1] = data.GetU16(&offset); // Reserved words
dos_header.e_res2[2] = data.GetU16(&offset); // Reserved words
dos_header.e_res2[3] = data.GetU16(&offset); // Reserved words
dos_header.e_res2[4] = data.GetU16(&offset); // Reserved words
dos_header.e_res2[5] = data.GetU16(&offset); // Reserved words
dos_header.e_res2[6] = data.GetU16(&offset); // Reserved words
dos_header.e_res2[7] = data.GetU16(&offset); // Reserved words
dos_header.e_res2[8] = data.GetU16(&offset); // Reserved words
dos_header.e_res2[9] = data.GetU16(&offset); // Reserved words
dos_header.e_lfanew =
data.GetU32(&offset); // File address of new exe header
}
}
if (!success)
memset(&dos_header, 0, sizeof(dos_header));
return success;
}
// ParserCOFFHeader
bool ObjectFilePECOFF::ParseCOFFHeader(DataExtractor &data,
lldb::offset_t *offset_ptr,
coff_header_t &coff_header) {
bool success =
data.ValidOffsetForDataOfSize(*offset_ptr, sizeof(coff_header));
if (success) {
coff_header.machine = data.GetU16(offset_ptr);
coff_header.nsects = data.GetU16(offset_ptr);
coff_header.modtime = data.GetU32(offset_ptr);
coff_header.symoff = data.GetU32(offset_ptr);
coff_header.nsyms = data.GetU32(offset_ptr);
coff_header.hdrsize = data.GetU16(offset_ptr);
coff_header.flags = data.GetU16(offset_ptr);
}
if (!success)
memset(&coff_header, 0, sizeof(coff_header));
return success;
}
bool ObjectFilePECOFF::ParseCOFFOptionalHeader(lldb::offset_t *offset_ptr) {
bool success = false;
const lldb::offset_t end_offset = *offset_ptr + m_coff_header.hdrsize;
if (*offset_ptr < end_offset) {
success = true;
m_coff_header_opt.magic = m_data.GetU16(offset_ptr);
m_coff_header_opt.major_linker_version = m_data.GetU8(offset_ptr);
m_coff_header_opt.minor_linker_version = m_data.GetU8(offset_ptr);
m_coff_header_opt.code_size = m_data.GetU32(offset_ptr);
m_coff_header_opt.data_size = m_data.GetU32(offset_ptr);
m_coff_header_opt.bss_size = m_data.GetU32(offset_ptr);
m_coff_header_opt.entry = m_data.GetU32(offset_ptr);
m_coff_header_opt.code_offset = m_data.GetU32(offset_ptr);
const uint32_t addr_byte_size = GetAddressByteSize();
if (*offset_ptr < end_offset) {
if (m_coff_header_opt.magic == OPT_HEADER_MAGIC_PE32) {
// PE32 only
m_coff_header_opt.data_offset = m_data.GetU32(offset_ptr);
} else
m_coff_header_opt.data_offset = 0;
if (*offset_ptr < end_offset) {
m_coff_header_opt.image_base =
m_data.GetMaxU64(offset_ptr, addr_byte_size);
m_coff_header_opt.sect_alignment = m_data.GetU32(offset_ptr);
m_coff_header_opt.file_alignment = m_data.GetU32(offset_ptr);
m_coff_header_opt.major_os_system_version = m_data.GetU16(offset_ptr);
m_coff_header_opt.minor_os_system_version = m_data.GetU16(offset_ptr);
m_coff_header_opt.major_image_version = m_data.GetU16(offset_ptr);
m_coff_header_opt.minor_image_version = m_data.GetU16(offset_ptr);
m_coff_header_opt.major_subsystem_version = m_data.GetU16(offset_ptr);
m_coff_header_opt.minor_subsystem_version = m_data.GetU16(offset_ptr);
m_coff_header_opt.reserved1 = m_data.GetU32(offset_ptr);
m_coff_header_opt.image_size = m_data.GetU32(offset_ptr);
m_coff_header_opt.header_size = m_data.GetU32(offset_ptr);
m_coff_header_opt.checksum = m_data.GetU32(offset_ptr);
m_coff_header_opt.subsystem = m_data.GetU16(offset_ptr);
m_coff_header_opt.dll_flags = m_data.GetU16(offset_ptr);
m_coff_header_opt.stack_reserve_size =
m_data.GetMaxU64(offset_ptr, addr_byte_size);
m_coff_header_opt.stack_commit_size =
m_data.GetMaxU64(offset_ptr, addr_byte_size);
m_coff_header_opt.heap_reserve_size =
m_data.GetMaxU64(offset_ptr, addr_byte_size);
m_coff_header_opt.heap_commit_size =
m_data.GetMaxU64(offset_ptr, addr_byte_size);
m_coff_header_opt.loader_flags = m_data.GetU32(offset_ptr);
uint32_t num_data_dir_entries = m_data.GetU32(offset_ptr);
m_coff_header_opt.data_dirs.clear();
m_coff_header_opt.data_dirs.resize(num_data_dir_entries);
uint32_t i;
for (i = 0; i < num_data_dir_entries; i++) {
m_coff_header_opt.data_dirs[i].vmaddr = m_data.GetU32(offset_ptr);
m_coff_header_opt.data_dirs[i].vmsize = m_data.GetU32(offset_ptr);
}
m_image_base = m_coff_header_opt.image_base;
}
}
}
// Make sure we are on track for section data which follows
*offset_ptr = end_offset;
return success;
}
uint32_t ObjectFilePECOFF::GetRVA(const Address &addr) const {
return addr.GetFileAddress() - m_image_base;
}
Address ObjectFilePECOFF::GetAddress(uint32_t rva) {
SectionList *sect_list = GetSectionList();
if (!sect_list)
return Address(GetFileAddress(rva));
return Address(GetFileAddress(rva), sect_list);
}
lldb::addr_t ObjectFilePECOFF::GetFileAddress(uint32_t rva) const {
return m_image_base + rva;
}
DataExtractor ObjectFilePECOFF::ReadImageData(uint32_t offset, size_t size) {
if (!size)
return {};
if (m_data.ValidOffsetForDataOfSize(offset, size))
return DataExtractor(m_data, offset, size);
ProcessSP process_sp(m_process_wp.lock());
DataExtractor data;
if (process_sp) {
auto data_up = std::make_unique<DataBufferHeap>(size, 0);
Status readmem_error;
size_t bytes_read =
process_sp->ReadMemory(m_image_base + offset, data_up->GetBytes(),
data_up->GetByteSize(), readmem_error);
if (bytes_read == size) {
DataBufferSP buffer_sp(data_up.release());
data.SetData(buffer_sp, 0, buffer_sp->GetByteSize());
}
}
return data;
}
DataExtractor ObjectFilePECOFF::ReadImageDataByRVA(uint32_t rva, size_t size) {
Address addr = GetAddress(rva);
SectionSP sect = addr.GetSection();
if (!sect)
return {};
rva = sect->GetFileOffset() + addr.GetOffset();
return ReadImageData(rva, size);
}
// ParseSectionHeaders
bool ObjectFilePECOFF::ParseSectionHeaders(
uint32_t section_header_data_offset) {
const uint32_t nsects = m_coff_header.nsects;
m_sect_headers.clear();
if (nsects > 0) {
const size_t section_header_byte_size = nsects * sizeof(section_header_t);
DataExtractor section_header_data =
ReadImageData(section_header_data_offset, section_header_byte_size);
lldb::offset_t offset = 0;
if (section_header_data.ValidOffsetForDataOfSize(
offset, section_header_byte_size)) {
m_sect_headers.resize(nsects);
for (uint32_t idx = 0; idx < nsects; ++idx) {
const void *name_data = section_header_data.GetData(&offset, 8);
if (name_data) {
memcpy(m_sect_headers[idx].name, name_data, 8);
m_sect_headers[idx].vmsize = section_header_data.GetU32(&offset);
m_sect_headers[idx].vmaddr = section_header_data.GetU32(&offset);
m_sect_headers[idx].size = section_header_data.GetU32(&offset);
m_sect_headers[idx].offset = section_header_data.GetU32(&offset);
m_sect_headers[idx].reloff = section_header_data.GetU32(&offset);
m_sect_headers[idx].lineoff = section_header_data.GetU32(&offset);
m_sect_headers[idx].nreloc = section_header_data.GetU16(&offset);
m_sect_headers[idx].nline = section_header_data.GetU16(&offset);
m_sect_headers[idx].flags = section_header_data.GetU32(&offset);
}
}
}
}
return !m_sect_headers.empty();
}
llvm::StringRef ObjectFilePECOFF::GetSectionName(const section_header_t &sect) {
llvm::StringRef hdr_name(sect.name, llvm::array_lengthof(sect.name));
hdr_name = hdr_name.split('\0').first;
if (hdr_name.consume_front("/")) {
lldb::offset_t stroff;
if (!to_integer(hdr_name, stroff, 10))
return "";
lldb::offset_t string_file_offset =
m_coff_header.symoff + (m_coff_header.nsyms * 18) + stroff;
if (const char *name = m_data.GetCStr(&string_file_offset))
return name;
return "";
}
return hdr_name;
}
// GetNListSymtab
Symtab *ObjectFilePECOFF::GetSymtab() {
ModuleSP module_sp(GetModule());
if (module_sp) {
std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
if (m_symtab_up == nullptr) {
SectionList *sect_list = GetSectionList();
m_symtab_up = std::make_unique<Symtab>(this);
std::lock_guard<std::recursive_mutex> guard(m_symtab_up->GetMutex());
const uint32_t num_syms = m_coff_header.nsyms;
if (m_file && num_syms > 0 && m_coff_header.symoff > 0) {
const uint32_t symbol_size = 18;
const size_t symbol_data_size = num_syms * symbol_size;
// Include the 4-byte string table size at the end of the symbols
DataExtractor symtab_data =
ReadImageData(m_coff_header.symoff, symbol_data_size + 4);
lldb::offset_t offset = symbol_data_size;
const uint32_t strtab_size = symtab_data.GetU32(&offset);
if (strtab_size > 0) {
DataExtractor strtab_data = ReadImageData(
m_coff_header.symoff + symbol_data_size, strtab_size);
offset = 0;
std::string symbol_name;
Symbol *symbols = m_symtab_up->Resize(num_syms);
for (uint32_t i = 0; i < num_syms; ++i) {
coff_symbol_t symbol;
const uint32_t symbol_offset = offset;
const char *symbol_name_cstr = nullptr;
// If the first 4 bytes of the symbol string are zero, then they
// are followed by a 4-byte string table offset. Else these
// 8 bytes contain the symbol name
if (symtab_data.GetU32(&offset) == 0) {
// Long string that doesn't fit into the symbol table name, so
// now we must read the 4 byte string table offset
uint32_t strtab_offset = symtab_data.GetU32(&offset);
symbol_name_cstr = strtab_data.PeekCStr(strtab_offset);
symbol_name.assign(symbol_name_cstr);
} else {
// Short string that fits into the symbol table name which is 8
// bytes
offset += sizeof(symbol.name) - 4; // Skip remaining
symbol_name_cstr = symtab_data.PeekCStr(symbol_offset);
if (symbol_name_cstr == nullptr)
break;
symbol_name.assign(symbol_name_cstr, sizeof(symbol.name));
}
symbol.value = symtab_data.GetU32(&offset);
symbol.sect = symtab_data.GetU16(&offset);
symbol.type = symtab_data.GetU16(&offset);
symbol.storage = symtab_data.GetU8(&offset);
symbol.naux = symtab_data.GetU8(&offset);
symbols[i].GetMangled().SetValue(ConstString(symbol_name.c_str()));
if ((int16_t)symbol.sect >= 1) {
Address symbol_addr(sect_list->FindSectionByID(symbol.sect),
symbol.value);
symbols[i].GetAddressRef() = symbol_addr;
symbols[i].SetType(MapSymbolType(symbol.type));
}
if (symbol.naux > 0) {
i += symbol.naux;
offset += symbol.naux * symbol_size;
}
}
}
}
// Read export header
if (coff_data_dir_export_table < m_coff_header_opt.data_dirs.size() &&
m_coff_header_opt.data_dirs[coff_data_dir_export_table].vmsize > 0 &&
m_coff_header_opt.data_dirs[coff_data_dir_export_table].vmaddr > 0) {
export_directory_entry export_table;
uint32_t data_start =
m_coff_header_opt.data_dirs[coff_data_dir_export_table].vmaddr;
DataExtractor symtab_data = ReadImageDataByRVA(
data_start, m_coff_header_opt.data_dirs[0].vmsize);
lldb::offset_t offset = 0;
// Read export_table header
export_table.characteristics = symtab_data.GetU32(&offset);
export_table.time_date_stamp = symtab_data.GetU32(&offset);
export_table.major_version = symtab_data.GetU16(&offset);
export_table.minor_version = symtab_data.GetU16(&offset);
export_table.name = symtab_data.GetU32(&offset);
export_table.base = symtab_data.GetU32(&offset);
export_table.number_of_functions = symtab_data.GetU32(&offset);
export_table.number_of_names = symtab_data.GetU32(&offset);
export_table.address_of_functions = symtab_data.GetU32(&offset);
export_table.address_of_names = symtab_data.GetU32(&offset);
export_table.address_of_name_ordinals = symtab_data.GetU32(&offset);
bool has_ordinal = export_table.address_of_name_ordinals != 0;
lldb::offset_t name_offset = export_table.address_of_names - data_start;
lldb::offset_t name_ordinal_offset =
export_table.address_of_name_ordinals - data_start;
Symbol *symbols = m_symtab_up->Resize(export_table.number_of_names);
std::string symbol_name;
// Read each export table entry
for (size_t i = 0; i < export_table.number_of_names; ++i) {
uint32_t name_ordinal =
has_ordinal ? symtab_data.GetU16(&name_ordinal_offset) : i;
uint32_t name_address = symtab_data.GetU32(&name_offset);
const char *symbol_name_cstr =
symtab_data.PeekCStr(name_address - data_start);
symbol_name.assign(symbol_name_cstr);
lldb::offset_t function_offset = export_table.address_of_functions -
data_start +
sizeof(uint32_t) * name_ordinal;
uint32_t function_rva = symtab_data.GetU32(&function_offset);
Address symbol_addr(m_coff_header_opt.image_base + function_rva,
sect_list);
symbols[i].GetMangled().SetValue(ConstString(symbol_name.c_str()));
symbols[i].GetAddressRef() = symbol_addr;
symbols[i].SetType(lldb::eSymbolTypeCode);
symbols[i].SetDebug(true);
}
}
m_symtab_up->CalculateSymbolSizes();
}
}
return m_symtab_up.get();
}
std::unique_ptr<CallFrameInfo> ObjectFilePECOFF::CreateCallFrameInfo() {
if (coff_data_dir_exception_table >= m_coff_header_opt.data_dirs.size())
return {};
data_directory data_dir_exception =
m_coff_header_opt.data_dirs[coff_data_dir_exception_table];
if (!data_dir_exception.vmaddr)
return {};
if (m_coff_header.machine != llvm::COFF::IMAGE_FILE_MACHINE_AMD64)
return {};
return std::make_unique<PECallFrameInfo>(*this, data_dir_exception.vmaddr,
data_dir_exception.vmsize);
}
bool ObjectFilePECOFF::IsStripped() {
// TODO: determine this for COFF
return false;
}
SectionType ObjectFilePECOFF::GetSectionType(llvm::StringRef sect_name,
const section_header_t &sect) {
ConstString const_sect_name(sect_name);
static ConstString g_code_sect_name(".code");
static ConstString g_CODE_sect_name("CODE");
static ConstString g_data_sect_name(".data");
static ConstString g_DATA_sect_name("DATA");
static ConstString g_bss_sect_name(".bss");
static ConstString g_BSS_sect_name("BSS");
if (sect.flags & llvm::COFF::IMAGE_SCN_CNT_CODE &&
((const_sect_name == g_code_sect_name) ||
(const_sect_name == g_CODE_sect_name))) {
return eSectionTypeCode;
}
if (sect.flags & llvm::COFF::IMAGE_SCN_CNT_INITIALIZED_DATA &&
((const_sect_name == g_data_sect_name) ||
(const_sect_name == g_DATA_sect_name))) {
if (sect.size == 0 && sect.offset == 0)
return eSectionTypeZeroFill;
else
return eSectionTypeData;
}
if (sect.flags & llvm::COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA &&
((const_sect_name == g_bss_sect_name) ||
(const_sect_name == g_BSS_sect_name))) {
if (sect.size == 0)
return eSectionTypeZeroFill;
else
return eSectionTypeData;
}
SectionType section_type =
llvm::StringSwitch<SectionType>(sect_name)
.Case(".debug", eSectionTypeDebug)
.Case(".stabstr", eSectionTypeDataCString)
.Case(".reloc", eSectionTypeOther)
.Case(".debug_abbrev", eSectionTypeDWARFDebugAbbrev)
.Case(".debug_aranges", eSectionTypeDWARFDebugAranges)
.Case(".debug_frame", eSectionTypeDWARFDebugFrame)
.Case(".debug_info", eSectionTypeDWARFDebugInfo)
.Case(".debug_line", eSectionTypeDWARFDebugLine)
.Case(".debug_loc", eSectionTypeDWARFDebugLoc)
.Case(".debug_loclists", eSectionTypeDWARFDebugLocLists)
.Case(".debug_macinfo", eSectionTypeDWARFDebugMacInfo)
.Case(".debug_names", eSectionTypeDWARFDebugNames)
.Case(".debug_pubnames", eSectionTypeDWARFDebugPubNames)
.Case(".debug_pubtypes", eSectionTypeDWARFDebugPubTypes)
.Case(".debug_ranges", eSectionTypeDWARFDebugRanges)
.Case(".debug_str", eSectionTypeDWARFDebugStr)
.Case(".debug_types", eSectionTypeDWARFDebugTypes)
// .eh_frame can be truncated to 8 chars.
.Cases(".eh_frame", ".eh_fram", eSectionTypeEHFrame)
.Case(".gosymtab", eSectionTypeGoSymtab)
.Default(eSectionTypeInvalid);
if (section_type != eSectionTypeInvalid)
return section_type;
if (sect.flags & llvm::COFF::IMAGE_SCN_CNT_CODE)
return eSectionTypeCode;
if (sect.flags & llvm::COFF::IMAGE_SCN_CNT_INITIALIZED_DATA)
return eSectionTypeData;
if (sect.flags & llvm::COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA) {
if (sect.size == 0)
return eSectionTypeZeroFill;
else
return eSectionTypeData;
}
return eSectionTypeOther;
}
void ObjectFilePECOFF::CreateSections(SectionList &unified_section_list) {
if (m_sections_up)
return;
m_sections_up = std::make_unique<SectionList>();
ModuleSP module_sp(GetModule());
if (module_sp) {
std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
SectionSP header_sp = std::make_shared<Section>(
module_sp, this, ~user_id_t(0), ConstString("PECOFF header"),
eSectionTypeOther, m_coff_header_opt.image_base,
m_coff_header_opt.header_size,
/*file_offset*/ 0, m_coff_header_opt.header_size,
m_coff_header_opt.sect_alignment,
/*flags*/ 0);
header_sp->SetPermissions(ePermissionsReadable);
m_sections_up->AddSection(header_sp);
unified_section_list.AddSection(header_sp);
const uint32_t nsects = m_sect_headers.size();
ModuleSP module_sp(GetModule());
for (uint32_t idx = 0; idx < nsects; ++idx) {
llvm::StringRef sect_name = GetSectionName(m_sect_headers[idx]);
ConstString const_sect_name(sect_name);
SectionType section_type = GetSectionType(sect_name, m_sect_headers[idx]);
SectionSP section_sp(new Section(
module_sp, // Module to which this section belongs
this, // Object file to which this section belongs
idx + 1, // Section ID is the 1 based section index.
const_sect_name, // Name of this section
section_type,
m_coff_header_opt.image_base +
m_sect_headers[idx].vmaddr, // File VM address == addresses as
// they are found in the object file
m_sect_headers[idx].vmsize, // VM size in bytes of this section
m_sect_headers[idx]
.offset, // Offset to the data for this section in the file
m_sect_headers[idx]
.size, // Size in bytes of this section as found in the file
m_coff_header_opt.sect_alignment, // Section alignment
m_sect_headers[idx].flags)); // Flags for this section
uint32_t permissions = 0;
if (m_sect_headers[idx].flags & llvm::COFF::IMAGE_SCN_MEM_EXECUTE)
permissions |= ePermissionsExecutable;
if (m_sect_headers[idx].flags & llvm::COFF::IMAGE_SCN_MEM_READ)
permissions |= ePermissionsReadable;
if (m_sect_headers[idx].flags & llvm::COFF::IMAGE_SCN_MEM_WRITE)
permissions |= ePermissionsWritable;
section_sp->SetPermissions(permissions);
m_sections_up->AddSection(section_sp);
unified_section_list.AddSection(section_sp);
}
}
}
UUID ObjectFilePECOFF::GetUUID() {
if (m_uuid.IsValid())
return m_uuid;
if (!CreateBinary())
return UUID();
m_uuid = GetCoffUUID(*m_binary);
return m_uuid;
}
uint32_t ObjectFilePECOFF::ParseDependentModules() {
ModuleSP module_sp(GetModule());
if (!module_sp)
return 0;
std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
if (m_deps_filespec)
return m_deps_filespec->GetSize();
// Cache coff binary if it is not done yet.
if (!CreateBinary())
return 0;
Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_OBJECT));
LLDB_LOG(log, "this = {0}, module = {1} ({2}), file = {3}, binary = {4}",
this, GetModule().get(), GetModule()->GetSpecificationDescription(),
m_file.GetPath(), m_binary.get());
m_deps_filespec = FileSpecList();
for (const auto &entry : m_binary->import_directories()) {
llvm::StringRef dll_name;
// Report a bogus entry.
if (llvm::Error e = entry.getName(dll_name)) {
LLDB_LOGF(log,
"ObjectFilePECOFF::ParseDependentModules() - failed to get "
"import directory entry name: %s",
llvm::toString(std::move(e)).c_str());
continue;
}
// At this moment we only have the base name of the DLL. The full path can
// only be seen after the dynamic loading. Our best guess is Try to get it
// with the help of the object file's directory.
llvm::SmallString<128> dll_fullpath;
FileSpec dll_specs(dll_name);
dll_specs.GetDirectory().SetString(m_file.GetDirectory().GetCString());
if (!llvm::sys::fs::real_path(dll_specs.GetPath(), dll_fullpath))
m_deps_filespec->EmplaceBack(dll_fullpath);
else {
// Known DLLs or DLL not found in the object file directory.
m_deps_filespec->EmplaceBack(dll_name);
}
}
return m_deps_filespec->GetSize();
}
uint32_t ObjectFilePECOFF::GetDependentModules(FileSpecList &files) {
auto num_modules = ParseDependentModules();
auto original_size = files.GetSize();
for (unsigned i = 0; i < num_modules; ++i)
files.AppendIfUnique(m_deps_filespec->GetFileSpecAtIndex(i));
return files.GetSize() - original_size;
}
lldb_private::Address ObjectFilePECOFF::GetEntryPointAddress() {
if (m_entry_point_address.IsValid())
return m_entry_point_address;
if (!ParseHeader() || !IsExecutable())
return m_entry_point_address;
SectionList *section_list = GetSectionList();
addr_t file_addr = m_coff_header_opt.entry + m_coff_header_opt.image_base;
if (!section_list)
m_entry_point_address.SetOffset(file_addr);
else
m_entry_point_address.ResolveAddressUsingFileSections(file_addr,
section_list);
return m_entry_point_address;
}
Address ObjectFilePECOFF::GetBaseAddress() {
return Address(GetSectionList()->GetSectionAtIndex(0), 0);
}
// Dump
//
// Dump the specifics of the runtime file container (such as any headers
// segments, sections, etc).
void ObjectFilePECOFF::Dump(Stream *s) {
ModuleSP module_sp(GetModule());
if (module_sp) {
std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
s->Printf("%p: ", static_cast<void *>(this));
s->Indent();
s->PutCString("ObjectFilePECOFF");
ArchSpec header_arch = GetArchitecture();
*s << ", file = '" << m_file
<< "', arch = " << header_arch.GetArchitectureName() << "\n";
SectionList *sections = GetSectionList();
if (sections)
sections->Dump(s->AsRawOstream(), s->GetIndentLevel(), nullptr, true,
UINT32_MAX);
if (m_symtab_up)
m_symtab_up->Dump(s, nullptr, eSortOrderNone);
if (m_dos_header.e_magic)
DumpDOSHeader(s, m_dos_header);
if (m_coff_header.machine) {
DumpCOFFHeader(s, m_coff_header);
if (m_coff_header.hdrsize)
DumpOptCOFFHeader(s, m_coff_header_opt);
}
s->EOL();
DumpSectionHeaders(s);
s->EOL();
DumpDependentModules(s);
s->EOL();
}
}
// DumpDOSHeader
//
// Dump the MS-DOS header to the specified output stream
void ObjectFilePECOFF::DumpDOSHeader(Stream *s, const dos_header_t &header) {
s->PutCString("MSDOS Header\n");
s->Printf(" e_magic = 0x%4.4x\n", header.e_magic);
s->Printf(" e_cblp = 0x%4.4x\n", header.e_cblp);
s->Printf(" e_cp = 0x%4.4x\n", header.e_cp);
s->Printf(" e_crlc = 0x%4.4x\n", header.e_crlc);
s->Printf(" e_cparhdr = 0x%4.4x\n", header.e_cparhdr);
s->Printf(" e_minalloc = 0x%4.4x\n", header.e_minalloc);
s->Printf(" e_maxalloc = 0x%4.4x\n", header.e_maxalloc);
s->Printf(" e_ss = 0x%4.4x\n", header.e_ss);
s->Printf(" e_sp = 0x%4.4x\n", header.e_sp);
s->Printf(" e_csum = 0x%4.4x\n", header.e_csum);
s->Printf(" e_ip = 0x%4.4x\n", header.e_ip);
s->Printf(" e_cs = 0x%4.4x\n", header.e_cs);
s->Printf(" e_lfarlc = 0x%4.4x\n", header.e_lfarlc);
s->Printf(" e_ovno = 0x%4.4x\n", header.e_ovno);
s->Printf(" e_res[4] = { 0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x }\n",
header.e_res[0], header.e_res[1], header.e_res[2], header.e_res[3]);
s->Printf(" e_oemid = 0x%4.4x\n", header.e_oemid);
s->Printf(" e_oeminfo = 0x%4.4x\n", header.e_oeminfo);
s->Printf(" e_res2[10] = { 0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x, "
"0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x, 0x%4.4x }\n",
header.e_res2[0], header.e_res2[1], header.e_res2[2],
header.e_res2[3], header.e_res2[4], header.e_res2[5],
header.e_res2[6], header.e_res2[7], header.e_res2[8],
header.e_res2[9]);
s->Printf(" e_lfanew = 0x%8.8x\n", header.e_lfanew);
}
// DumpCOFFHeader
//
// Dump the COFF header to the specified output stream
void ObjectFilePECOFF::DumpCOFFHeader(Stream *s, const coff_header_t &header) {
s->PutCString("COFF Header\n");
s->Printf(" machine = 0x%4.4x\n", header.machine);
s->Printf(" nsects = 0x%4.4x\n", header.nsects);
s->Printf(" modtime = 0x%8.8x\n", header.modtime);
s->Printf(" symoff = 0x%8.8x\n", header.symoff);
s->Printf(" nsyms = 0x%8.8x\n", header.nsyms);
s->Printf(" hdrsize = 0x%4.4x\n", header.hdrsize);
}
// DumpOptCOFFHeader
//
// Dump the optional COFF header to the specified output stream
void ObjectFilePECOFF::DumpOptCOFFHeader(Stream *s,
const coff_opt_header_t &header) {
s->PutCString("Optional COFF Header\n");
s->Printf(" magic = 0x%4.4x\n", header.magic);
s->Printf(" major_linker_version = 0x%2.2x\n",
header.major_linker_version);
s->Printf(" minor_linker_version = 0x%2.2x\n",
header.minor_linker_version);
s->Printf(" code_size = 0x%8.8x\n", header.code_size);
s->Printf(" data_size = 0x%8.8x\n", header.data_size);
s->Printf(" bss_size = 0x%8.8x\n", header.bss_size);
s->Printf(" entry = 0x%8.8x\n", header.entry);
s->Printf(" code_offset = 0x%8.8x\n", header.code_offset);
s->Printf(" data_offset = 0x%8.8x\n", header.data_offset);
s->Printf(" image_base = 0x%16.16" PRIx64 "\n",
header.image_base);
s->Printf(" sect_alignment = 0x%8.8x\n", header.sect_alignment);
s->Printf(" file_alignment = 0x%8.8x\n", header.file_alignment);
s->Printf(" major_os_system_version = 0x%4.4x\n",
header.major_os_system_version);
s->Printf(" minor_os_system_version = 0x%4.4x\n",
header.minor_os_system_version);
s->Printf(" major_image_version = 0x%4.4x\n",
header.major_image_version);
s->Printf(" minor_image_version = 0x%4.4x\n",
header.minor_image_version);
s->Printf(" major_subsystem_version = 0x%4.4x\n",
header.major_subsystem_version);
s->Printf(" minor_subsystem_version = 0x%4.4x\n",
header.minor_subsystem_version);
s->Printf(" reserved1 = 0x%8.8x\n", header.reserved1);
s->Printf(" image_size = 0x%8.8x\n", header.image_size);
s->Printf(" header_size = 0x%8.8x\n", header.header_size);
s->Printf(" checksum = 0x%8.8x\n", header.checksum);
s->Printf(" subsystem = 0x%4.4x\n", header.subsystem);
s->Printf(" dll_flags = 0x%4.4x\n", header.dll_flags);
s->Printf(" stack_reserve_size = 0x%16.16" PRIx64 "\n",
header.stack_reserve_size);
s->Printf(" stack_commit_size = 0x%16.16" PRIx64 "\n",
header.stack_commit_size);
s->Printf(" heap_reserve_size = 0x%16.16" PRIx64 "\n",
header.heap_reserve_size);
s->Printf(" heap_commit_size = 0x%16.16" PRIx64 "\n",
header.heap_commit_size);
s->Printf(" loader_flags = 0x%8.8x\n", header.loader_flags);
s->Printf(" num_data_dir_entries = 0x%8.8x\n",
(uint32_t)header.data_dirs.size());
uint32_t i;
for (i = 0; i < header.data_dirs.size(); i++) {
s->Printf(" data_dirs[%2u] vmaddr = 0x%8.8x, vmsize = 0x%8.8x\n", i,
header.data_dirs[i].vmaddr, header.data_dirs[i].vmsize);
}
}
// DumpSectionHeader
//
// Dump a single ELF section header to the specified output stream
void ObjectFilePECOFF::DumpSectionHeader(Stream *s,
const section_header_t &sh) {
std::string name = std::string(GetSectionName(sh));
s->Printf("%-16s 0x%8.8x 0x%8.8x 0x%8.8x 0x%8.8x 0x%8.8x 0x%8.8x 0x%4.4x "
"0x%4.4x 0x%8.8x\n",
name.c_str(), sh.vmaddr, sh.vmsize, sh.offset, sh.size, sh.reloff,
sh.lineoff, sh.nreloc, sh.nline, sh.flags);
}
// DumpSectionHeaders
//
// Dump all of the ELF section header to the specified output stream
void ObjectFilePECOFF::DumpSectionHeaders(Stream *s) {
s->PutCString("Section Headers\n");
s->PutCString("IDX name vm addr vm size file off file "
"size reloc off line off nreloc nline flags\n");
s->PutCString("==== ---------------- ---------- ---------- ---------- "
"---------- ---------- ---------- ------ ------ ----------\n");
uint32_t idx = 0;
SectionHeaderCollIter pos, end = m_sect_headers.end();
for (pos = m_sect_headers.begin(); pos != end; ++pos, ++idx) {
s->Printf("[%2u] ", idx);
ObjectFilePECOFF::DumpSectionHeader(s, *pos);
}
}
// DumpDependentModules
//
// Dump all of the dependent modules to the specified output stream
void ObjectFilePECOFF::DumpDependentModules(lldb_private::Stream *s) {
auto num_modules = ParseDependentModules();
if (num_modules > 0) {
s->PutCString("Dependent Modules\n");
for (unsigned i = 0; i < num_modules; ++i) {
auto spec = m_deps_filespec->GetFileSpecAtIndex(i);
s->Printf(" %s\n", spec.GetFilename().GetCString());
}
}
}
bool ObjectFilePECOFF::IsWindowsSubsystem() {
switch (m_coff_header_opt.subsystem) {
case llvm::COFF::IMAGE_SUBSYSTEM_NATIVE:
case llvm::COFF::IMAGE_SUBSYSTEM_WINDOWS_GUI:
case llvm::COFF::IMAGE_SUBSYSTEM_WINDOWS_CUI:
case llvm::COFF::IMAGE_SUBSYSTEM_NATIVE_WINDOWS:
case llvm::COFF::IMAGE_SUBSYSTEM_WINDOWS_CE_GUI:
case llvm::COFF::IMAGE_SUBSYSTEM_XBOX:
case llvm::COFF::IMAGE_SUBSYSTEM_WINDOWS_BOOT_APPLICATION:
return true;
default:
return false;
}
}
ArchSpec ObjectFilePECOFF::GetArchitecture() {
uint16_t machine = m_coff_header.machine;
switch (machine) {
default:
break;
case llvm::COFF::IMAGE_FILE_MACHINE_AMD64:
case llvm::COFF::IMAGE_FILE_MACHINE_I386:
case llvm::COFF::IMAGE_FILE_MACHINE_POWERPC:
case llvm::COFF::IMAGE_FILE_MACHINE_POWERPCFP:
case llvm::COFF::IMAGE_FILE_MACHINE_ARM:
case llvm::COFF::IMAGE_FILE_MACHINE_ARMNT:
case llvm::COFF::IMAGE_FILE_MACHINE_THUMB:
case llvm::COFF::IMAGE_FILE_MACHINE_ARM64:
ArchSpec arch;
arch.SetArchitecture(eArchTypeCOFF, machine, LLDB_INVALID_CPUTYPE,
IsWindowsSubsystem() ? llvm::Triple::Win32
: llvm::Triple::UnknownOS);
return arch;
}
return ArchSpec();
}
ObjectFile::Type ObjectFilePECOFF::CalculateType() {
if (m_coff_header.machine != 0) {
if ((m_coff_header.flags & llvm::COFF::IMAGE_FILE_DLL) == 0)
return eTypeExecutable;
else
return eTypeSharedLibrary;
}
return eTypeExecutable;
}
ObjectFile::Strata ObjectFilePECOFF::CalculateStrata() { return eStrataUser; }
// PluginInterface protocol
ConstString ObjectFilePECOFF::GetPluginName() { return GetPluginNameStatic(); }
uint32_t ObjectFilePECOFF::GetPluginVersion() { return 1; }
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