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https://github.com/c64scene-ar/llvm-6502.git
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1e839eb2cd
PE32+ supports 64 bit address space, but the file format remains 32 bit. So its file format is pretty similar to PE32 (32 bit executable). The differences compared to PE32 are (1) the lack of "BaseOfData" field and (2) some of its data members are 64 bit. In this patch, I added a new member function to get a PE32+ Header object to COFFObjectFile class and made llvm-readobj to use it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200117 91177308-0d34-0410-b5e6-96231b3b80d8
427 lines
16 KiB
C++
427 lines
16 KiB
C++
//===- COFF.h - COFF object file implementation -----------------*- 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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//
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// This file declares the COFFObjectFile class.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_OBJECT_COFF_H
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#define LLVM_OBJECT_COFF_H
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#include "llvm/Object/ObjectFile.h"
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#include "llvm/Support/COFF.h"
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#include "llvm/Support/Endian.h"
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namespace llvm {
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template <typename T>
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class ArrayRef;
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namespace object {
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class ImportDirectoryEntryRef;
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class ExportDirectoryEntryRef;
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typedef content_iterator<ImportDirectoryEntryRef> import_directory_iterator;
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typedef content_iterator<ExportDirectoryEntryRef> export_directory_iterator;
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/// The DOS compatible header at the front of all PE/COFF executables.
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struct dos_header {
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support::ulittle16_t Magic;
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support::ulittle16_t UsedBytesInTheLastPage;
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support::ulittle16_t FileSizeInPages;
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support::ulittle16_t NumberOfRelocationItems;
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support::ulittle16_t HeaderSizeInParagraphs;
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support::ulittle16_t MinimumExtraParagraphs;
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support::ulittle16_t MaximumExtraParagraphs;
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support::ulittle16_t InitialRelativeSS;
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support::ulittle16_t InitialSP;
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support::ulittle16_t Checksum;
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support::ulittle16_t InitialIP;
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support::ulittle16_t InitialRelativeCS;
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support::ulittle16_t AddressOfRelocationTable;
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support::ulittle16_t OverlayNumber;
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support::ulittle16_t Reserved[4];
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support::ulittle16_t OEMid;
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support::ulittle16_t OEMinfo;
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support::ulittle16_t Reserved2[10];
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support::ulittle32_t AddressOfNewExeHeader;
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};
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struct coff_file_header {
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support::ulittle16_t Machine;
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support::ulittle16_t NumberOfSections;
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support::ulittle32_t TimeDateStamp;
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support::ulittle32_t PointerToSymbolTable;
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support::ulittle32_t NumberOfSymbols;
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support::ulittle16_t SizeOfOptionalHeader;
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support::ulittle16_t Characteristics;
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bool isImportLibrary() const { return NumberOfSections == 0xffff; }
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};
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/// The 32-bit PE header that follows the COFF header.
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struct pe32_header {
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support::ulittle16_t Magic;
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uint8_t MajorLinkerVersion;
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uint8_t MinorLinkerVersion;
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support::ulittle32_t SizeOfCode;
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support::ulittle32_t SizeOfInitializedData;
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support::ulittle32_t SizeOfUninitializedData;
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support::ulittle32_t AddressOfEntryPoint;
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support::ulittle32_t BaseOfCode;
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support::ulittle32_t BaseOfData;
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support::ulittle32_t ImageBase;
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support::ulittle32_t SectionAlignment;
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support::ulittle32_t FileAlignment;
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support::ulittle16_t MajorOperatingSystemVersion;
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support::ulittle16_t MinorOperatingSystemVersion;
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support::ulittle16_t MajorImageVersion;
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support::ulittle16_t MinorImageVersion;
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support::ulittle16_t MajorSubsystemVersion;
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support::ulittle16_t MinorSubsystemVersion;
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support::ulittle32_t Win32VersionValue;
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support::ulittle32_t SizeOfImage;
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support::ulittle32_t SizeOfHeaders;
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support::ulittle32_t CheckSum;
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support::ulittle16_t Subsystem;
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support::ulittle16_t DLLCharacteristics;
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support::ulittle32_t SizeOfStackReserve;
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support::ulittle32_t SizeOfStackCommit;
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support::ulittle32_t SizeOfHeapReserve;
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support::ulittle32_t SizeOfHeapCommit;
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support::ulittle32_t LoaderFlags;
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support::ulittle32_t NumberOfRvaAndSize;
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};
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/// The 64-bit PE header that follows the COFF header.
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struct pe32plus_header {
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support::ulittle16_t Magic;
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uint8_t MajorLinkerVersion;
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uint8_t MinorLinkerVersion;
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support::ulittle32_t SizeOfCode;
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support::ulittle32_t SizeOfInitializedData;
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support::ulittle32_t SizeOfUninitializedData;
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support::ulittle32_t AddressOfEntryPoint;
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support::ulittle32_t BaseOfCode;
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support::ulittle64_t ImageBase;
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support::ulittle32_t SectionAlignment;
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support::ulittle32_t FileAlignment;
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support::ulittle16_t MajorOperatingSystemVersion;
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support::ulittle16_t MinorOperatingSystemVersion;
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support::ulittle16_t MajorImageVersion;
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support::ulittle16_t MinorImageVersion;
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support::ulittle16_t MajorSubsystemVersion;
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support::ulittle16_t MinorSubsystemVersion;
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support::ulittle32_t Win32VersionValue;
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support::ulittle32_t SizeOfImage;
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support::ulittle32_t SizeOfHeaders;
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support::ulittle32_t CheckSum;
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support::ulittle16_t Subsystem;
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support::ulittle16_t DLLCharacteristics;
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support::ulittle64_t SizeOfStackReserve;
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support::ulittle64_t SizeOfStackCommit;
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support::ulittle64_t SizeOfHeapReserve;
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support::ulittle64_t SizeOfHeapCommit;
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support::ulittle32_t LoaderFlags;
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support::ulittle32_t NumberOfRvaAndSize;
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};
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struct data_directory {
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support::ulittle32_t RelativeVirtualAddress;
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support::ulittle32_t Size;
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};
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struct import_directory_table_entry {
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support::ulittle32_t ImportLookupTableRVA;
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support::ulittle32_t TimeDateStamp;
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support::ulittle32_t ForwarderChain;
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support::ulittle32_t NameRVA;
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support::ulittle32_t ImportAddressTableRVA;
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};
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struct import_lookup_table_entry32 {
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support::ulittle32_t data;
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bool isOrdinal() const { return data & 0x80000000; }
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uint16_t getOrdinal() const {
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assert(isOrdinal() && "ILT entry is not an ordinal!");
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return data & 0xFFFF;
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}
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uint32_t getHintNameRVA() const {
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assert(!isOrdinal() && "ILT entry is not a Hint/Name RVA!");
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return data;
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}
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};
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struct export_directory_table_entry {
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support::ulittle32_t ExportFlags;
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support::ulittle32_t TimeDateStamp;
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support::ulittle16_t MajorVersion;
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support::ulittle16_t MinorVersion;
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support::ulittle32_t NameRVA;
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support::ulittle32_t OrdinalBase;
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support::ulittle32_t AddressTableEntries;
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support::ulittle32_t NumberOfNamePointers;
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support::ulittle32_t ExportAddressTableRVA;
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support::ulittle32_t NamePointerRVA;
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support::ulittle32_t OrdinalTableRVA;
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};
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union export_address_table_entry {
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support::ulittle32_t ExportRVA;
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support::ulittle32_t ForwarderRVA;
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};
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typedef support::ulittle32_t export_name_pointer_table_entry;
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typedef support::ulittle16_t export_ordinal_table_entry;
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struct coff_symbol {
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struct StringTableOffset {
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support::ulittle32_t Zeroes;
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support::ulittle32_t Offset;
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};
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union {
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char ShortName[8];
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StringTableOffset Offset;
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} Name;
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support::ulittle32_t Value;
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support::little16_t SectionNumber;
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support::ulittle16_t Type;
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support::ulittle8_t StorageClass;
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support::ulittle8_t NumberOfAuxSymbols;
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uint8_t getBaseType() const {
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return Type & 0x0F;
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}
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uint8_t getComplexType() const {
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return (Type & 0xF0) >> 4;
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}
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};
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struct coff_section {
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char Name[8];
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support::ulittle32_t VirtualSize;
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support::ulittle32_t VirtualAddress;
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support::ulittle32_t SizeOfRawData;
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support::ulittle32_t PointerToRawData;
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support::ulittle32_t PointerToRelocations;
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support::ulittle32_t PointerToLinenumbers;
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support::ulittle16_t NumberOfRelocations;
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support::ulittle16_t NumberOfLinenumbers;
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support::ulittle32_t Characteristics;
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};
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struct coff_relocation {
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support::ulittle32_t VirtualAddress;
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support::ulittle32_t SymbolTableIndex;
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support::ulittle16_t Type;
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};
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struct coff_aux_weak_external {
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support::ulittle32_t TagIndex;
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support::ulittle32_t Characteristics;
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char Unused[10];
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};
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struct coff_aux_section_definition {
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support::ulittle32_t Length;
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support::ulittle16_t NumberOfRelocations;
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support::ulittle16_t NumberOfLinenumbers;
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support::ulittle32_t CheckSum;
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support::ulittle16_t Number;
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support::ulittle8_t Selection;
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char Unused[3];
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};
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class COFFObjectFile : public ObjectFile {
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private:
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friend class ImportDirectoryEntryRef;
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friend class ExportDirectoryEntryRef;
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const coff_file_header *COFFHeader;
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const pe32_header *PE32Header;
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const pe32plus_header *PE32PlusHeader;
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const data_directory *DataDirectory;
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const coff_section *SectionTable;
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const coff_symbol *SymbolTable;
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const char *StringTable;
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uint32_t StringTableSize;
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const import_directory_table_entry *ImportDirectory;
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uint32_t NumberOfImportDirectory;
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const export_directory_table_entry *ExportDirectory;
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error_code getString(uint32_t offset, StringRef &Res) const;
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const coff_symbol *toSymb(DataRefImpl Symb) const;
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const coff_section *toSec(DataRefImpl Sec) const;
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const coff_relocation *toRel(DataRefImpl Rel) const;
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error_code initSymbolTablePtr();
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error_code initImportTablePtr();
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error_code initExportTablePtr();
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protected:
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virtual error_code getSymbolNext(DataRefImpl Symb, SymbolRef &Res) const;
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virtual error_code getSymbolName(DataRefImpl Symb, StringRef &Res) const;
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virtual error_code getSymbolFileOffset(DataRefImpl Symb, uint64_t &Res) const;
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virtual error_code getSymbolAddress(DataRefImpl Symb, uint64_t &Res) const;
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virtual error_code getSymbolSize(DataRefImpl Symb, uint64_t &Res) const;
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virtual error_code getSymbolFlags(DataRefImpl Symb, uint32_t &Res) const;
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virtual error_code getSymbolType(DataRefImpl Symb, SymbolRef::Type &Res) const;
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virtual error_code getSymbolSection(DataRefImpl Symb,
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section_iterator &Res) const;
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virtual error_code getSymbolValue(DataRefImpl Symb, uint64_t &Val) const;
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virtual error_code getSectionNext(DataRefImpl Sec, SectionRef &Res) const;
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virtual error_code getSectionName(DataRefImpl Sec, StringRef &Res) const;
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virtual error_code getSectionAddress(DataRefImpl Sec, uint64_t &Res) const;
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virtual error_code getSectionSize(DataRefImpl Sec, uint64_t &Res) const;
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virtual error_code getSectionContents(DataRefImpl Sec, StringRef &Res) const;
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virtual error_code getSectionAlignment(DataRefImpl Sec, uint64_t &Res) const;
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virtual error_code isSectionText(DataRefImpl Sec, bool &Res) const;
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virtual error_code isSectionData(DataRefImpl Sec, bool &Res) const;
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virtual error_code isSectionBSS(DataRefImpl Sec, bool &Res) const;
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virtual error_code isSectionVirtual(DataRefImpl Sec, bool &Res) const;
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virtual error_code isSectionZeroInit(DataRefImpl Sec, bool &Res) const;
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virtual error_code isSectionReadOnlyData(DataRefImpl Sec, bool &Res) const;
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virtual error_code isSectionRequiredForExecution(DataRefImpl Sec,
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bool &Res) const;
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virtual error_code sectionContainsSymbol(DataRefImpl Sec, DataRefImpl Symb,
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bool &Result) const;
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virtual relocation_iterator section_rel_begin(DataRefImpl Sec) const;
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virtual relocation_iterator section_rel_end(DataRefImpl Sec) const;
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virtual error_code getRelocationNext(DataRefImpl Rel,
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RelocationRef &Res) const;
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virtual error_code getRelocationAddress(DataRefImpl Rel,
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uint64_t &Res) const;
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virtual error_code getRelocationOffset(DataRefImpl Rel,
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uint64_t &Res) const;
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virtual symbol_iterator getRelocationSymbol(DataRefImpl Rel) const;
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virtual error_code getRelocationType(DataRefImpl Rel,
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uint64_t &Res) const;
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virtual error_code getRelocationTypeName(DataRefImpl Rel,
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SmallVectorImpl<char> &Result) const;
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virtual error_code getRelocationValueString(DataRefImpl Rel,
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SmallVectorImpl<char> &Result) const;
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virtual error_code getLibraryNext(DataRefImpl LibData,
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LibraryRef &Result) const;
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virtual error_code getLibraryPath(DataRefImpl LibData,
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StringRef &Result) const;
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public:
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COFFObjectFile(MemoryBuffer *Object, error_code &EC, bool BufferOwned = true);
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virtual symbol_iterator begin_symbols() const;
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virtual symbol_iterator end_symbols() const;
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virtual symbol_iterator begin_dynamic_symbols() const;
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virtual symbol_iterator end_dynamic_symbols() const;
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virtual library_iterator begin_libraries_needed() const;
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virtual library_iterator end_libraries_needed() const;
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virtual section_iterator begin_sections() const;
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virtual section_iterator end_sections() const;
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const coff_section *getCOFFSection(section_iterator &It) const;
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const coff_symbol *getCOFFSymbol(symbol_iterator &It) const;
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const coff_relocation *getCOFFRelocation(relocation_iterator &It) const;
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virtual uint8_t getBytesInAddress() const;
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virtual StringRef getFileFormatName() const;
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virtual unsigned getArch() const;
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virtual StringRef getLoadName() const;
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import_directory_iterator import_directory_begin() const;
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import_directory_iterator import_directory_end() const;
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export_directory_iterator export_directory_begin() const;
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export_directory_iterator export_directory_end() const;
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error_code getHeader(const coff_file_header *&Res) const;
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error_code getCOFFHeader(const coff_file_header *&Res) const;
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error_code getPE32Header(const pe32_header *&Res) const;
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error_code getPE32PlusHeader(const pe32plus_header *&Res) const;
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error_code getDataDirectory(uint32_t index, const data_directory *&Res) const;
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error_code getSection(int32_t index, const coff_section *&Res) const;
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error_code getSymbol(uint32_t index, const coff_symbol *&Res) const;
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template <typename T>
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error_code getAuxSymbol(uint32_t index, const T *&Res) const {
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const coff_symbol *s;
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error_code ec = getSymbol(index, s);
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Res = reinterpret_cast<const T*>(s);
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return ec;
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}
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error_code getSymbolName(const coff_symbol *symbol, StringRef &Res) const;
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ArrayRef<uint8_t> getSymbolAuxData(const coff_symbol *symbol) const;
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error_code getSectionName(const coff_section *Sec, StringRef &Res) const;
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error_code getSectionContents(const coff_section *Sec,
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ArrayRef<uint8_t> &Res) const;
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error_code getRvaPtr(uint32_t Rva, uintptr_t &Res) const;
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error_code getHintName(uint32_t Rva, uint16_t &Hint, StringRef &Name) const;
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static inline bool classof(const Binary *v) {
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return v->isCOFF();
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}
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};
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// The iterator for the import directory table.
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class ImportDirectoryEntryRef {
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public:
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ImportDirectoryEntryRef() : OwningObject(0) {}
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ImportDirectoryEntryRef(const import_directory_table_entry *Table, uint32_t I,
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const COFFObjectFile *Owner)
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: ImportTable(Table), Index(I), OwningObject(Owner) {}
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bool operator==(const ImportDirectoryEntryRef &Other) const;
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error_code getNext(ImportDirectoryEntryRef &Result) const;
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error_code getName(StringRef &Result) const;
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error_code
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getImportTableEntry(const import_directory_table_entry *&Result) const;
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error_code
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getImportLookupEntry(const import_lookup_table_entry32 *&Result) const;
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private:
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const import_directory_table_entry *ImportTable;
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uint32_t Index;
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const COFFObjectFile *OwningObject;
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};
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// The iterator for the export directory table entry.
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class ExportDirectoryEntryRef {
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public:
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ExportDirectoryEntryRef() : OwningObject(0) {}
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ExportDirectoryEntryRef(const export_directory_table_entry *Table, uint32_t I,
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const COFFObjectFile *Owner)
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: ExportTable(Table), Index(I), OwningObject(Owner) {}
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bool operator==(const ExportDirectoryEntryRef &Other) const;
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error_code getNext(ExportDirectoryEntryRef &Result) const;
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error_code getDllName(StringRef &Result) const;
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error_code getOrdinalBase(uint32_t &Result) const;
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error_code getOrdinal(uint32_t &Result) const;
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error_code getExportRVA(uint32_t &Result) const;
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error_code getSymbolName(StringRef &Result) const;
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private:
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const export_directory_table_entry *ExportTable;
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uint32_t Index;
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const COFFObjectFile *OwningObject;
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};
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} // end namespace object
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} // end namespace llvm
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#endif
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