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579f5bb06a
Teach WinCOFFObjectWriter how to write -mbig-obj style object files; these object files allow for more sections inside an object file. Our support for BigObj is notably different from binutils and cl: we implicitly upgrade object files to BigObj instead of asking the user to compile the same file *again* but with another flag. This matches up with how LLVM treats ELF variants. This was tested by forcing LLVM to always emit BigObj files and running the entire test suite. A specific test has also been added. I've lowered the maximum number of sections in a normal COFF file, VS "14" CTP 3 supports no more than 65279 sections. This is important otherwise we might not switch to BigObj quickly enough, leaving us with a COFF file that we couldn't link. yaml2obj support is all that remains to implement. Differential Revision: http://reviews.llvm.org/D5349 llvm-svn: 217812
693 lines
24 KiB
C++
693 lines
24 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/ADT/PointerUnion.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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#include "llvm/Support/ErrorOr.h"
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namespace llvm {
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template <typename T> 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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struct coff_bigobj_file_header {
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support::ulittle16_t Sig1;
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support::ulittle16_t Sig2;
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support::ulittle16_t Version;
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support::ulittle16_t Machine;
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support::ulittle32_t TimeDateStamp;
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uint8_t UUID[16];
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support::ulittle32_t unused1;
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support::ulittle32_t unused2;
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support::ulittle32_t unused3;
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support::ulittle32_t unused4;
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support::ulittle32_t NumberOfSections;
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support::ulittle32_t PointerToSymbolTable;
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support::ulittle32_t NumberOfSymbols;
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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 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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template <typename SectionNumberType>
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struct coff_symbol {
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union {
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char ShortName[COFF::NameSize];
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StringTableOffset Offset;
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} Name;
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support::ulittle32_t Value;
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SectionNumberType SectionNumber;
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support::ulittle16_t Type;
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uint8_t StorageClass;
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uint8_t NumberOfAuxSymbols;
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};
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typedef coff_symbol<support::ulittle16_t> coff_symbol16;
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typedef coff_symbol<support::ulittle32_t> coff_symbol32;
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class COFFSymbolRef {
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public:
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COFFSymbolRef(const coff_symbol16 *CS) : CS16(CS), CS32(nullptr) {}
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COFFSymbolRef(const coff_symbol32 *CS) : CS16(nullptr), CS32(CS) {}
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COFFSymbolRef() : CS16(nullptr), CS32(nullptr) {}
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const void *getRawPtr() const {
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return CS16 ? static_cast<const void *>(CS16) : CS32;
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}
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friend bool operator<(COFFSymbolRef A, COFFSymbolRef B) {
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return A.getRawPtr() < B.getRawPtr();
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}
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bool isBigObj() const {
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if (CS16)
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return false;
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if (CS32)
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return true;
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llvm_unreachable("COFFSymbolRef points to nothing!");
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}
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const char *getShortName() const {
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return CS16 ? CS16->Name.ShortName : CS32->Name.ShortName;
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}
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const StringTableOffset &getStringTableOffset() const {
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return CS16 ? CS16->Name.Offset : CS32->Name.Offset;
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}
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uint32_t getValue() const { return CS16 ? CS16->Value : CS32->Value; }
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int32_t getSectionNumber() const {
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if (CS16) {
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// Reserved sections are returned as negative numbers.
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if (CS16->SectionNumber <= COFF::MaxNumberOfSections16)
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return CS16->SectionNumber;
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return static_cast<int16_t>(CS16->SectionNumber);
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}
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return static_cast<int32_t>(CS32->SectionNumber);
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}
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uint16_t getType() const { return CS16 ? CS16->Type : CS32->Type; }
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uint8_t getStorageClass() const {
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return CS16 ? CS16->StorageClass : CS32->StorageClass;
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}
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uint8_t getNumberOfAuxSymbols() const {
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return CS16 ? CS16->NumberOfAuxSymbols : CS32->NumberOfAuxSymbols;
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}
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uint8_t getBaseType() const { return getType() & 0x0F; }
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uint8_t getComplexType() const { return (getType() & 0xF0) >> 4; }
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bool isFunctionDefinition() const {
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return getStorageClass() == COFF::IMAGE_SYM_CLASS_EXTERNAL &&
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getBaseType() == COFF::IMAGE_SYM_TYPE_NULL &&
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getComplexType() == COFF::IMAGE_SYM_DTYPE_FUNCTION &&
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!COFF::isReservedSectionNumber(getSectionNumber());
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}
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bool isFunctionLineInfo() const {
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return getStorageClass() == COFF::IMAGE_SYM_CLASS_FUNCTION;
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}
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bool isWeakExternal() const {
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return getStorageClass() == COFF::IMAGE_SYM_CLASS_WEAK_EXTERNAL ||
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(getStorageClass() == COFF::IMAGE_SYM_CLASS_EXTERNAL &&
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getSectionNumber() == COFF::IMAGE_SYM_UNDEFINED && getValue() == 0);
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}
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bool isFileRecord() const {
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return getStorageClass() == COFF::IMAGE_SYM_CLASS_FILE;
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}
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bool isSectionDefinition() const {
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// C++/CLI creates external ABS symbols for non-const appdomain globals.
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// These are also followed by an auxiliary section definition.
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bool isAppdomainGlobal =
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getStorageClass() == COFF::IMAGE_SYM_CLASS_EXTERNAL &&
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getSectionNumber() == COFF::IMAGE_SYM_ABSOLUTE;
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bool isOrdinarySection =
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getStorageClass() == COFF::IMAGE_SYM_CLASS_STATIC && getValue() == 0;
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return isAppdomainGlobal || isOrdinarySection;
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}
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bool isCLRToken() const {
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return getStorageClass() == COFF::IMAGE_SYM_CLASS_CLR_TOKEN;
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}
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private:
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const coff_symbol16 *CS16;
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const coff_symbol32 *CS32;
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};
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struct coff_section {
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char Name[COFF::NameSize];
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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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// Returns true if the actual number of relocations is stored in
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// VirtualAddress field of the first relocation table entry.
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bool hasExtendedRelocations() const {
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return Characteristics & COFF::IMAGE_SCN_LNK_NRELOC_OVFL &&
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NumberOfRelocations == UINT16_MAX;
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};
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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_function_definition {
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support::ulittle32_t TagIndex;
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support::ulittle32_t TotalSize;
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support::ulittle32_t PointerToLinenumber;
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support::ulittle32_t PointerToNextFunction;
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};
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struct coff_aux_bf_and_ef_symbol {
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char Unused1[4];
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support::ulittle16_t Linenumber;
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char Unused2[6];
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support::ulittle32_t PointerToNextFunction;
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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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};
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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 NumberLowPart;
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uint8_t Selection;
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uint8_t Unused;
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support::ulittle16_t NumberHighPart;
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int32_t getNumber(bool IsBigObj) const {
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uint32_t Number = static_cast<uint32_t>(NumberLowPart);
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if (IsBigObj)
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Number |= static_cast<uint32_t>(NumberHighPart) << 16;
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return static_cast<int32_t>(Number);
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}
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};
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struct coff_aux_clr_token {
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uint8_t AuxType;
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uint8_t Reserved;
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support::ulittle32_t SymbolTableIndex;
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};
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struct coff_load_configuration32 {
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support::ulittle32_t Characteristics;
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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 GlobalFlagsClear;
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support::ulittle32_t GlobalFlagsSet;
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support::ulittle32_t CriticalSectionDefaultTimeout;
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support::ulittle32_t DeCommitFreeBlockThreshold;
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support::ulittle32_t DeCommitTotalFreeThreshold;
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support::ulittle32_t LockPrefixTable;
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support::ulittle32_t MaximumAllocationSize;
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support::ulittle32_t VirtualMemoryThreshold;
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support::ulittle32_t ProcessAffinityMask;
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support::ulittle32_t ProcessHeapFlags;
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support::ulittle16_t CSDVersion;
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support::ulittle16_t Reserved;
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support::ulittle32_t EditList;
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support::ulittle32_t SecurityCookie;
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support::ulittle32_t SEHandlerTable;
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support::ulittle32_t SEHandlerCount;
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};
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struct coff_runtime_function_x64 {
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support::ulittle32_t BeginAddress;
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support::ulittle32_t EndAddress;
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support::ulittle32_t UnwindInformation;
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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 coff_bigobj_file_header *COFFBigObjHeader;
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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_symbol16 *SymbolTable16;
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const coff_symbol32 *SymbolTable32;
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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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std::error_code getString(uint32_t offset, StringRef &Res) const;
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template <typename coff_symbol_type>
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const coff_symbol_type *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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std::error_code initSymbolTablePtr();
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std::error_code initImportTablePtr();
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std::error_code initExportTablePtr();
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public:
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uintptr_t getSymbolTable() const {
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if (SymbolTable16)
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return reinterpret_cast<uintptr_t>(SymbolTable16);
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if (SymbolTable32)
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return reinterpret_cast<uintptr_t>(SymbolTable32);
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return uintptr_t(0);
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}
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uint16_t getMachine() const {
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if (COFFHeader)
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return COFFHeader->Machine;
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if (COFFBigObjHeader)
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return COFFBigObjHeader->Machine;
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llvm_unreachable("no COFF header!");
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}
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uint16_t getSizeOfOptionalHeader() const {
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if (COFFHeader)
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return COFFHeader->SizeOfOptionalHeader;
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// bigobj doesn't have this field.
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if (COFFBigObjHeader)
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return 0;
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llvm_unreachable("no COFF header!");
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}
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uint16_t getCharacteristics() const {
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if (COFFHeader)
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return COFFHeader->Characteristics;
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// bigobj doesn't have characteristics to speak of,
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// editbin will silently lie to you if you attempt to set any.
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if (COFFBigObjHeader)
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return 0;
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llvm_unreachable("no COFF header!");
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}
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uint32_t getTimeDateStamp() const {
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if (COFFHeader)
|
|
return COFFHeader->TimeDateStamp;
|
|
if (COFFBigObjHeader)
|
|
return COFFBigObjHeader->TimeDateStamp;
|
|
llvm_unreachable("no COFF header!");
|
|
}
|
|
uint32_t getNumberOfSections() const {
|
|
if (COFFHeader)
|
|
return COFFHeader->NumberOfSections;
|
|
if (COFFBigObjHeader)
|
|
return COFFBigObjHeader->NumberOfSections;
|
|
llvm_unreachable("no COFF header!");
|
|
}
|
|
uint32_t getPointerToSymbolTable() const {
|
|
if (COFFHeader)
|
|
return COFFHeader->PointerToSymbolTable;
|
|
if (COFFBigObjHeader)
|
|
return COFFBigObjHeader->PointerToSymbolTable;
|
|
llvm_unreachable("no COFF header!");
|
|
}
|
|
uint32_t getNumberOfSymbols() const {
|
|
if (COFFHeader)
|
|
return COFFHeader->NumberOfSymbols;
|
|
if (COFFBigObjHeader)
|
|
return COFFBigObjHeader->NumberOfSymbols;
|
|
llvm_unreachable("no COFF header!");
|
|
}
|
|
protected:
|
|
void moveSymbolNext(DataRefImpl &Symb) const override;
|
|
std::error_code getSymbolName(DataRefImpl Symb,
|
|
StringRef &Res) const override;
|
|
std::error_code getSymbolAddress(DataRefImpl Symb,
|
|
uint64_t &Res) const override;
|
|
std::error_code getSymbolSize(DataRefImpl Symb, uint64_t &Res) const override;
|
|
uint32_t getSymbolFlags(DataRefImpl Symb) const override;
|
|
std::error_code getSymbolType(DataRefImpl Symb,
|
|
SymbolRef::Type &Res) const override;
|
|
std::error_code getSymbolSection(DataRefImpl Symb,
|
|
section_iterator &Res) const override;
|
|
void moveSectionNext(DataRefImpl &Sec) const override;
|
|
std::error_code getSectionName(DataRefImpl Sec,
|
|
StringRef &Res) const override;
|
|
std::error_code getSectionAddress(DataRefImpl Sec,
|
|
uint64_t &Res) const override;
|
|
std::error_code getSectionSize(DataRefImpl Sec, uint64_t &Res) const override;
|
|
std::error_code getSectionContents(DataRefImpl Sec,
|
|
StringRef &Res) const override;
|
|
std::error_code getSectionAlignment(DataRefImpl Sec,
|
|
uint64_t &Res) const override;
|
|
std::error_code isSectionText(DataRefImpl Sec, bool &Res) const override;
|
|
std::error_code isSectionData(DataRefImpl Sec, bool &Res) const override;
|
|
std::error_code isSectionBSS(DataRefImpl Sec, bool &Res) const override;
|
|
std::error_code isSectionVirtual(DataRefImpl Sec, bool &Res) const override;
|
|
std::error_code isSectionZeroInit(DataRefImpl Sec, bool &Res) const override;
|
|
std::error_code isSectionReadOnlyData(DataRefImpl Sec,
|
|
bool &Res) const override;
|
|
std::error_code isSectionRequiredForExecution(DataRefImpl Sec,
|
|
bool &Res) const override;
|
|
std::error_code sectionContainsSymbol(DataRefImpl Sec, DataRefImpl Symb,
|
|
bool &Result) const override;
|
|
relocation_iterator section_rel_begin(DataRefImpl Sec) const override;
|
|
relocation_iterator section_rel_end(DataRefImpl Sec) const override;
|
|
|
|
void moveRelocationNext(DataRefImpl &Rel) const override;
|
|
std::error_code getRelocationAddress(DataRefImpl Rel,
|
|
uint64_t &Res) const override;
|
|
std::error_code getRelocationOffset(DataRefImpl Rel,
|
|
uint64_t &Res) const override;
|
|
symbol_iterator getRelocationSymbol(DataRefImpl Rel) const override;
|
|
std::error_code getRelocationType(DataRefImpl Rel,
|
|
uint64_t &Res) const override;
|
|
std::error_code
|
|
getRelocationTypeName(DataRefImpl Rel,
|
|
SmallVectorImpl<char> &Result) const override;
|
|
std::error_code
|
|
getRelocationValueString(DataRefImpl Rel,
|
|
SmallVectorImpl<char> &Result) const override;
|
|
|
|
public:
|
|
COFFObjectFile(MemoryBufferRef Object, std::error_code &EC);
|
|
basic_symbol_iterator symbol_begin_impl() const override;
|
|
basic_symbol_iterator symbol_end_impl() const override;
|
|
section_iterator section_begin() const override;
|
|
section_iterator section_end() const override;
|
|
|
|
const coff_section *getCOFFSection(const SectionRef &Section) const;
|
|
COFFSymbolRef getCOFFSymbol(const DataRefImpl &Ref) const;
|
|
COFFSymbolRef getCOFFSymbol(const SymbolRef &Symbol) const;
|
|
const coff_relocation *getCOFFRelocation(const RelocationRef &Reloc) const;
|
|
|
|
uint8_t getBytesInAddress() const override;
|
|
StringRef getFileFormatName() const override;
|
|
unsigned getArch() const override;
|
|
|
|
import_directory_iterator import_directory_begin() const;
|
|
import_directory_iterator import_directory_end() const;
|
|
export_directory_iterator export_directory_begin() const;
|
|
export_directory_iterator export_directory_end() const;
|
|
|
|
std::error_code getPE32Header(const pe32_header *&Res) const;
|
|
std::error_code getPE32PlusHeader(const pe32plus_header *&Res) const;
|
|
std::error_code getDataDirectory(uint32_t index,
|
|
const data_directory *&Res) const;
|
|
std::error_code getSection(int32_t index, const coff_section *&Res) const;
|
|
template <typename coff_symbol_type>
|
|
std::error_code getSymbol(uint32_t Index,
|
|
const coff_symbol_type *&Res) const {
|
|
if (Index >= getNumberOfSymbols())
|
|
return object_error::parse_failed;
|
|
|
|
Res = reinterpret_cast<coff_symbol_type *>(getSymbolTable()) + Index;
|
|
return object_error::success;
|
|
}
|
|
ErrorOr<COFFSymbolRef> getSymbol(uint32_t index) const {
|
|
if (SymbolTable16) {
|
|
const coff_symbol16 *Symb = nullptr;
|
|
if (std::error_code EC = getSymbol(index, Symb))
|
|
return EC;
|
|
return COFFSymbolRef(Symb);
|
|
}
|
|
if (SymbolTable32) {
|
|
const coff_symbol32 *Symb = nullptr;
|
|
if (std::error_code EC = getSymbol(index, Symb))
|
|
return EC;
|
|
return COFFSymbolRef(Symb);
|
|
}
|
|
llvm_unreachable("no symbol table pointer!");
|
|
}
|
|
template <typename T>
|
|
std::error_code getAuxSymbol(uint32_t index, const T *&Res) const {
|
|
ErrorOr<COFFSymbolRef> s = getSymbol(index);
|
|
if (std::error_code EC = s.getError())
|
|
return EC;
|
|
Res = reinterpret_cast<const T *>(s->getRawPtr());
|
|
return object_error::success;
|
|
}
|
|
std::error_code getSymbolName(COFFSymbolRef Symbol, StringRef &Res) const;
|
|
|
|
ArrayRef<uint8_t> getSymbolAuxData(COFFSymbolRef Symbol) const;
|
|
|
|
size_t getSymbolTableEntrySize() const {
|
|
if (COFFHeader)
|
|
return sizeof(coff_symbol16);
|
|
if (COFFBigObjHeader)
|
|
return sizeof(coff_symbol32);
|
|
llvm_unreachable("null symbol table pointer!");
|
|
}
|
|
|
|
std::error_code getSectionName(const coff_section *Sec, StringRef &Res) const;
|
|
std::error_code getSectionContents(const coff_section *Sec,
|
|
ArrayRef<uint8_t> &Res) const;
|
|
|
|
std::error_code getVaPtr(uint64_t VA, uintptr_t &Res) const;
|
|
std::error_code getRvaPtr(uint32_t Rva, uintptr_t &Res) const;
|
|
std::error_code getHintName(uint32_t Rva, uint16_t &Hint,
|
|
StringRef &Name) const;
|
|
|
|
bool isRelocatableObject() const override;
|
|
|
|
static inline bool classof(const Binary *v) { return v->isCOFF(); }
|
|
};
|
|
|
|
// The iterator for the import directory table.
|
|
class ImportDirectoryEntryRef {
|
|
public:
|
|
ImportDirectoryEntryRef() : OwningObject(nullptr) {}
|
|
ImportDirectoryEntryRef(const import_directory_table_entry *Table, uint32_t I,
|
|
const COFFObjectFile *Owner)
|
|
: ImportTable(Table), Index(I), OwningObject(Owner) {}
|
|
|
|
bool operator==(const ImportDirectoryEntryRef &Other) const;
|
|
void moveNext();
|
|
std::error_code getName(StringRef &Result) const;
|
|
|
|
std::error_code
|
|
getImportTableEntry(const import_directory_table_entry *&Result) const;
|
|
|
|
std::error_code
|
|
getImportLookupEntry(const import_lookup_table_entry32 *&Result) const;
|
|
|
|
private:
|
|
const import_directory_table_entry *ImportTable;
|
|
uint32_t Index;
|
|
const COFFObjectFile *OwningObject;
|
|
};
|
|
|
|
// The iterator for the export directory table entry.
|
|
class ExportDirectoryEntryRef {
|
|
public:
|
|
ExportDirectoryEntryRef() : OwningObject(nullptr) {}
|
|
ExportDirectoryEntryRef(const export_directory_table_entry *Table, uint32_t I,
|
|
const COFFObjectFile *Owner)
|
|
: ExportTable(Table), Index(I), OwningObject(Owner) {}
|
|
|
|
bool operator==(const ExportDirectoryEntryRef &Other) const;
|
|
void moveNext();
|
|
|
|
std::error_code getDllName(StringRef &Result) const;
|
|
std::error_code getOrdinalBase(uint32_t &Result) const;
|
|
std::error_code getOrdinal(uint32_t &Result) const;
|
|
std::error_code getExportRVA(uint32_t &Result) const;
|
|
std::error_code getSymbolName(StringRef &Result) const;
|
|
|
|
private:
|
|
const export_directory_table_entry *ExportTable;
|
|
uint32_t Index;
|
|
const COFFObjectFile *OwningObject;
|
|
};
|
|
} // end namespace object
|
|
} // end namespace llvm
|
|
|
|
#endif
|