mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-24 03:33:20 +01:00
435 lines
15 KiB
C++
435 lines
15 KiB
C++
//===- COFF.h - COFF object file implementation -----------------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file declares the COFFObjectFile class.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_OBJECT_COFF_H
|
|
#define LLVM_OBJECT_COFF_H
|
|
|
|
#include "llvm/Object/ObjectFile.h"
|
|
#include "llvm/Support/COFF.h"
|
|
#include "llvm/Support/Endian.h"
|
|
|
|
namespace llvm {
|
|
template <typename T>
|
|
class ArrayRef;
|
|
|
|
namespace object {
|
|
class ImportDirectoryEntryRef;
|
|
class ExportDirectoryEntryRef;
|
|
typedef content_iterator<ImportDirectoryEntryRef> import_directory_iterator;
|
|
typedef content_iterator<ExportDirectoryEntryRef> export_directory_iterator;
|
|
|
|
/// The DOS compatible header at the front of all PE/COFF executables.
|
|
struct dos_header {
|
|
support::ulittle16_t Magic;
|
|
support::ulittle16_t UsedBytesInTheLastPage;
|
|
support::ulittle16_t FileSizeInPages;
|
|
support::ulittle16_t NumberOfRelocationItems;
|
|
support::ulittle16_t HeaderSizeInParagraphs;
|
|
support::ulittle16_t MinimumExtraParagraphs;
|
|
support::ulittle16_t MaximumExtraParagraphs;
|
|
support::ulittle16_t InitialRelativeSS;
|
|
support::ulittle16_t InitialSP;
|
|
support::ulittle16_t Checksum;
|
|
support::ulittle16_t InitialIP;
|
|
support::ulittle16_t InitialRelativeCS;
|
|
support::ulittle16_t AddressOfRelocationTable;
|
|
support::ulittle16_t OverlayNumber;
|
|
support::ulittle16_t Reserved[4];
|
|
support::ulittle16_t OEMid;
|
|
support::ulittle16_t OEMinfo;
|
|
support::ulittle16_t Reserved2[10];
|
|
support::ulittle32_t AddressOfNewExeHeader;
|
|
};
|
|
|
|
struct coff_file_header {
|
|
support::ulittle16_t Machine;
|
|
support::ulittle16_t NumberOfSections;
|
|
support::ulittle32_t TimeDateStamp;
|
|
support::ulittle32_t PointerToSymbolTable;
|
|
support::ulittle32_t NumberOfSymbols;
|
|
support::ulittle16_t SizeOfOptionalHeader;
|
|
support::ulittle16_t Characteristics;
|
|
|
|
bool isImportLibrary() const { return NumberOfSections == 0xffff; }
|
|
};
|
|
|
|
/// The 32-bit PE header that follows the COFF header.
|
|
struct pe32_header {
|
|
support::ulittle16_t Magic;
|
|
uint8_t MajorLinkerVersion;
|
|
uint8_t MinorLinkerVersion;
|
|
support::ulittle32_t SizeOfCode;
|
|
support::ulittle32_t SizeOfInitializedData;
|
|
support::ulittle32_t SizeOfUninitializedData;
|
|
support::ulittle32_t AddressOfEntryPoint;
|
|
support::ulittle32_t BaseOfCode;
|
|
support::ulittle32_t BaseOfData;
|
|
support::ulittle32_t ImageBase;
|
|
support::ulittle32_t SectionAlignment;
|
|
support::ulittle32_t FileAlignment;
|
|
support::ulittle16_t MajorOperatingSystemVersion;
|
|
support::ulittle16_t MinorOperatingSystemVersion;
|
|
support::ulittle16_t MajorImageVersion;
|
|
support::ulittle16_t MinorImageVersion;
|
|
support::ulittle16_t MajorSubsystemVersion;
|
|
support::ulittle16_t MinorSubsystemVersion;
|
|
support::ulittle32_t Win32VersionValue;
|
|
support::ulittle32_t SizeOfImage;
|
|
support::ulittle32_t SizeOfHeaders;
|
|
support::ulittle32_t CheckSum;
|
|
support::ulittle16_t Subsystem;
|
|
support::ulittle16_t DLLCharacteristics;
|
|
support::ulittle32_t SizeOfStackReserve;
|
|
support::ulittle32_t SizeOfStackCommit;
|
|
support::ulittle32_t SizeOfHeapReserve;
|
|
support::ulittle32_t SizeOfHeapCommit;
|
|
support::ulittle32_t LoaderFlags;
|
|
support::ulittle32_t NumberOfRvaAndSize;
|
|
};
|
|
|
|
/// The 64-bit PE header that follows the COFF header.
|
|
struct pe32plus_header {
|
|
support::ulittle16_t Magic;
|
|
uint8_t MajorLinkerVersion;
|
|
uint8_t MinorLinkerVersion;
|
|
support::ulittle32_t SizeOfCode;
|
|
support::ulittle32_t SizeOfInitializedData;
|
|
support::ulittle32_t SizeOfUninitializedData;
|
|
support::ulittle32_t AddressOfEntryPoint;
|
|
support::ulittle32_t BaseOfCode;
|
|
support::ulittle64_t ImageBase;
|
|
support::ulittle32_t SectionAlignment;
|
|
support::ulittle32_t FileAlignment;
|
|
support::ulittle16_t MajorOperatingSystemVersion;
|
|
support::ulittle16_t MinorOperatingSystemVersion;
|
|
support::ulittle16_t MajorImageVersion;
|
|
support::ulittle16_t MinorImageVersion;
|
|
support::ulittle16_t MajorSubsystemVersion;
|
|
support::ulittle16_t MinorSubsystemVersion;
|
|
support::ulittle32_t Win32VersionValue;
|
|
support::ulittle32_t SizeOfImage;
|
|
support::ulittle32_t SizeOfHeaders;
|
|
support::ulittle32_t CheckSum;
|
|
support::ulittle16_t Subsystem;
|
|
support::ulittle16_t DLLCharacteristics;
|
|
support::ulittle64_t SizeOfStackReserve;
|
|
support::ulittle64_t SizeOfStackCommit;
|
|
support::ulittle64_t SizeOfHeapReserve;
|
|
support::ulittle64_t SizeOfHeapCommit;
|
|
support::ulittle32_t LoaderFlags;
|
|
support::ulittle32_t NumberOfRvaAndSize;
|
|
};
|
|
|
|
struct data_directory {
|
|
support::ulittle32_t RelativeVirtualAddress;
|
|
support::ulittle32_t Size;
|
|
};
|
|
|
|
struct import_directory_table_entry {
|
|
support::ulittle32_t ImportLookupTableRVA;
|
|
support::ulittle32_t TimeDateStamp;
|
|
support::ulittle32_t ForwarderChain;
|
|
support::ulittle32_t NameRVA;
|
|
support::ulittle32_t ImportAddressTableRVA;
|
|
};
|
|
|
|
struct import_lookup_table_entry32 {
|
|
support::ulittle32_t data;
|
|
|
|
bool isOrdinal() const { return data & 0x80000000; }
|
|
|
|
uint16_t getOrdinal() const {
|
|
assert(isOrdinal() && "ILT entry is not an ordinal!");
|
|
return data & 0xFFFF;
|
|
}
|
|
|
|
uint32_t getHintNameRVA() const {
|
|
assert(!isOrdinal() && "ILT entry is not a Hint/Name RVA!");
|
|
return data;
|
|
}
|
|
};
|
|
|
|
struct export_directory_table_entry {
|
|
support::ulittle32_t ExportFlags;
|
|
support::ulittle32_t TimeDateStamp;
|
|
support::ulittle16_t MajorVersion;
|
|
support::ulittle16_t MinorVersion;
|
|
support::ulittle32_t NameRVA;
|
|
support::ulittle32_t OrdinalBase;
|
|
support::ulittle32_t AddressTableEntries;
|
|
support::ulittle32_t NumberOfNamePointers;
|
|
support::ulittle32_t ExportAddressTableRVA;
|
|
support::ulittle32_t NamePointerRVA;
|
|
support::ulittle32_t OrdinalTableRVA;
|
|
};
|
|
|
|
union export_address_table_entry {
|
|
support::ulittle32_t ExportRVA;
|
|
support::ulittle32_t ForwarderRVA;
|
|
};
|
|
|
|
typedef support::ulittle32_t export_name_pointer_table_entry;
|
|
typedef support::ulittle16_t export_ordinal_table_entry;
|
|
|
|
struct coff_symbol {
|
|
struct StringTableOffset {
|
|
support::ulittle32_t Zeroes;
|
|
support::ulittle32_t Offset;
|
|
};
|
|
|
|
union {
|
|
char ShortName[8];
|
|
StringTableOffset Offset;
|
|
} Name;
|
|
|
|
support::ulittle32_t Value;
|
|
support::little16_t SectionNumber;
|
|
|
|
support::ulittle16_t Type;
|
|
|
|
support::ulittle8_t StorageClass;
|
|
support::ulittle8_t NumberOfAuxSymbols;
|
|
|
|
uint8_t getBaseType() const {
|
|
return Type & 0x0F;
|
|
}
|
|
|
|
uint8_t getComplexType() const {
|
|
return (Type & 0xF0) >> 4;
|
|
}
|
|
};
|
|
|
|
struct coff_section {
|
|
char Name[8];
|
|
support::ulittle32_t VirtualSize;
|
|
support::ulittle32_t VirtualAddress;
|
|
support::ulittle32_t SizeOfRawData;
|
|
support::ulittle32_t PointerToRawData;
|
|
support::ulittle32_t PointerToRelocations;
|
|
support::ulittle32_t PointerToLinenumbers;
|
|
support::ulittle16_t NumberOfRelocations;
|
|
support::ulittle16_t NumberOfLinenumbers;
|
|
support::ulittle32_t Characteristics;
|
|
};
|
|
|
|
struct coff_relocation {
|
|
support::ulittle32_t VirtualAddress;
|
|
support::ulittle32_t SymbolTableIndex;
|
|
support::ulittle16_t Type;
|
|
};
|
|
|
|
struct coff_aux_weak_external {
|
|
support::ulittle32_t TagIndex;
|
|
support::ulittle32_t Characteristics;
|
|
char Unused[10];
|
|
};
|
|
|
|
struct coff_aux_section_definition {
|
|
support::ulittle32_t Length;
|
|
support::ulittle16_t NumberOfRelocations;
|
|
support::ulittle16_t NumberOfLinenumbers;
|
|
support::ulittle32_t CheckSum;
|
|
support::ulittle16_t Number;
|
|
support::ulittle8_t Selection;
|
|
char Unused[3];
|
|
};
|
|
|
|
class COFFObjectFile : public ObjectFile {
|
|
private:
|
|
friend class ImportDirectoryEntryRef;
|
|
friend class ExportDirectoryEntryRef;
|
|
const coff_file_header *COFFHeader;
|
|
const pe32_header *PE32Header;
|
|
const pe32plus_header *PE32PlusHeader;
|
|
const data_directory *DataDirectory;
|
|
const coff_section *SectionTable;
|
|
const coff_symbol *SymbolTable;
|
|
const char *StringTable;
|
|
uint32_t StringTableSize;
|
|
const import_directory_table_entry *ImportDirectory;
|
|
uint32_t NumberOfImportDirectory;
|
|
const export_directory_table_entry *ExportDirectory;
|
|
|
|
error_code getString(uint32_t offset, StringRef &Res) const;
|
|
|
|
const coff_symbol *toSymb(DataRefImpl Symb) const;
|
|
const coff_section *toSec(DataRefImpl Sec) const;
|
|
const coff_relocation *toRel(DataRefImpl Rel) const;
|
|
|
|
error_code initSymbolTablePtr();
|
|
error_code initImportTablePtr();
|
|
error_code initExportTablePtr();
|
|
|
|
protected:
|
|
void moveSymbolNext(DataRefImpl &Symb) const LLVM_OVERRIDE;
|
|
error_code getSymbolName(DataRefImpl Symb, StringRef &Res) const
|
|
LLVM_OVERRIDE;
|
|
error_code getSymbolAddress(DataRefImpl Symb, uint64_t &Res) const
|
|
LLVM_OVERRIDE;
|
|
error_code getSymbolFileOffset(DataRefImpl Symb, uint64_t &Res) const
|
|
LLVM_OVERRIDE;
|
|
error_code getSymbolSize(DataRefImpl Symb, uint64_t &Res) const LLVM_OVERRIDE;
|
|
uint32_t getSymbolFlags(DataRefImpl Symb) const LLVM_OVERRIDE;
|
|
error_code getSymbolType(DataRefImpl Symb, SymbolRef::Type &Res) const
|
|
LLVM_OVERRIDE;
|
|
error_code getSymbolSection(DataRefImpl Symb, section_iterator &Res) const
|
|
LLVM_OVERRIDE;
|
|
error_code getSymbolValue(DataRefImpl Symb, uint64_t &Val) const
|
|
LLVM_OVERRIDE;
|
|
void moveSectionNext(DataRefImpl &Sec) const LLVM_OVERRIDE;
|
|
error_code getSectionName(DataRefImpl Sec, StringRef &Res) const
|
|
LLVM_OVERRIDE;
|
|
error_code getSectionAddress(DataRefImpl Sec, uint64_t &Res) const
|
|
LLVM_OVERRIDE;
|
|
error_code getSectionSize(DataRefImpl Sec, uint64_t &Res) const LLVM_OVERRIDE;
|
|
error_code getSectionContents(DataRefImpl Sec, StringRef &Res) const
|
|
LLVM_OVERRIDE;
|
|
error_code getSectionAlignment(DataRefImpl Sec, uint64_t &Res) const
|
|
LLVM_OVERRIDE;
|
|
error_code isSectionText(DataRefImpl Sec, bool &Res) const LLVM_OVERRIDE;
|
|
error_code isSectionData(DataRefImpl Sec, bool &Res) const LLVM_OVERRIDE;
|
|
error_code isSectionBSS(DataRefImpl Sec, bool &Res) const LLVM_OVERRIDE;
|
|
error_code isSectionVirtual(DataRefImpl Sec, bool &Res) const LLVM_OVERRIDE;
|
|
error_code isSectionZeroInit(DataRefImpl Sec, bool &Res) const LLVM_OVERRIDE;
|
|
error_code isSectionReadOnlyData(DataRefImpl Sec, bool &Res) const
|
|
LLVM_OVERRIDE;
|
|
error_code isSectionRequiredForExecution(DataRefImpl Sec, bool &Res) const
|
|
LLVM_OVERRIDE;
|
|
error_code sectionContainsSymbol(DataRefImpl Sec, DataRefImpl Symb,
|
|
bool &Result) const LLVM_OVERRIDE;
|
|
relocation_iterator section_rel_begin(DataRefImpl Sec) const LLVM_OVERRIDE;
|
|
relocation_iterator section_rel_end(DataRefImpl Sec) const LLVM_OVERRIDE;
|
|
|
|
void moveRelocationNext(DataRefImpl &Rel) const LLVM_OVERRIDE;
|
|
error_code getRelocationAddress(DataRefImpl Rel, uint64_t &Res) const
|
|
LLVM_OVERRIDE;
|
|
error_code getRelocationOffset(DataRefImpl Rel, uint64_t &Res) const
|
|
LLVM_OVERRIDE;
|
|
symbol_iterator getRelocationSymbol(DataRefImpl Rel) const LLVM_OVERRIDE;
|
|
error_code getRelocationType(DataRefImpl Rel, uint64_t &Res) const
|
|
LLVM_OVERRIDE;
|
|
error_code getRelocationTypeName(DataRefImpl Rel,
|
|
SmallVectorImpl<char> &Result) const
|
|
LLVM_OVERRIDE;
|
|
error_code getRelocationValueString(DataRefImpl Rel,
|
|
SmallVectorImpl<char> &Result) const
|
|
LLVM_OVERRIDE;
|
|
|
|
error_code getLibraryNext(DataRefImpl LibData, LibraryRef &Result) const
|
|
LLVM_OVERRIDE;
|
|
error_code getLibraryPath(DataRefImpl LibData, StringRef &Result) const
|
|
LLVM_OVERRIDE;
|
|
|
|
public:
|
|
COFFObjectFile(MemoryBuffer *Object, error_code &EC, bool BufferOwned = true);
|
|
symbol_iterator symbol_begin() const LLVM_OVERRIDE;
|
|
symbol_iterator symbol_end() const LLVM_OVERRIDE;
|
|
library_iterator needed_library_begin() const LLVM_OVERRIDE;
|
|
library_iterator needed_library_end() const LLVM_OVERRIDE;
|
|
section_iterator section_begin() const LLVM_OVERRIDE;
|
|
section_iterator section_end() const LLVM_OVERRIDE;
|
|
|
|
const coff_section *getCOFFSection(section_iterator &It) const;
|
|
const coff_symbol *getCOFFSymbol(symbol_iterator &It) const;
|
|
const coff_relocation *getCOFFRelocation(relocation_iterator &It) const;
|
|
|
|
uint8_t getBytesInAddress() const LLVM_OVERRIDE;
|
|
StringRef getFileFormatName() const LLVM_OVERRIDE;
|
|
unsigned getArch() const LLVM_OVERRIDE;
|
|
StringRef getLoadName() const LLVM_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;
|
|
|
|
error_code getHeader(const coff_file_header *&Res) const;
|
|
error_code getCOFFHeader(const coff_file_header *&Res) const;
|
|
error_code getPE32Header(const pe32_header *&Res) const;
|
|
error_code getPE32PlusHeader(const pe32plus_header *&Res) const;
|
|
error_code getDataDirectory(uint32_t index, const data_directory *&Res) const;
|
|
error_code getSection(int32_t index, const coff_section *&Res) const;
|
|
error_code getSymbol(uint32_t index, const coff_symbol *&Res) const;
|
|
template <typename T>
|
|
error_code getAuxSymbol(uint32_t index, const T *&Res) const {
|
|
const coff_symbol *s;
|
|
error_code ec = getSymbol(index, s);
|
|
Res = reinterpret_cast<const T*>(s);
|
|
return ec;
|
|
}
|
|
error_code getSymbolName(const coff_symbol *symbol, StringRef &Res) const;
|
|
ArrayRef<uint8_t> getSymbolAuxData(const coff_symbol *symbol) const;
|
|
|
|
error_code getSectionName(const coff_section *Sec, StringRef &Res) const;
|
|
error_code getSectionContents(const coff_section *Sec,
|
|
ArrayRef<uint8_t> &Res) const;
|
|
|
|
error_code getRvaPtr(uint32_t Rva, uintptr_t &Res) const;
|
|
error_code getHintName(uint32_t Rva, uint16_t &Hint, StringRef &Name) const;
|
|
|
|
static inline bool classof(const Binary *v) {
|
|
return v->isCOFF();
|
|
}
|
|
};
|
|
|
|
// The iterator for the import directory table.
|
|
class ImportDirectoryEntryRef {
|
|
public:
|
|
ImportDirectoryEntryRef() : OwningObject(0) {}
|
|
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();
|
|
error_code getName(StringRef &Result) const;
|
|
|
|
error_code
|
|
getImportTableEntry(const import_directory_table_entry *&Result) const;
|
|
|
|
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(0) {}
|
|
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();
|
|
|
|
error_code getDllName(StringRef &Result) const;
|
|
error_code getOrdinalBase(uint32_t &Result) const;
|
|
error_code getOrdinal(uint32_t &Result) const;
|
|
error_code getExportRVA(uint32_t &Result) const;
|
|
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
|