#ifndef LLVM_OBJECT_COFF_H
#define LLVM_OBJECT_COFF_H
+#include "llvm/ADT/PointerUnion.h"
#include "llvm/Object/ObjectFile.h"
#include "llvm/Support/COFF.h"
#include "llvm/Support/Endian.h"
+#include "llvm/Support/ErrorOr.h"
namespace llvm {
template <typename T> class ArrayRef;
bool isImportLibrary() const { return NumberOfSections == 0xffff; }
};
+struct coff_bigobj_file_header {
+ support::ulittle16_t Sig1;
+ support::ulittle16_t Sig2;
+ support::ulittle16_t Version;
+ support::ulittle16_t Machine;
+ support::ulittle32_t TimeDateStamp;
+ uint8_t UUID[16];
+ support::ulittle32_t unused1;
+ support::ulittle32_t unused2;
+ support::ulittle32_t unused3;
+ support::ulittle32_t unused4;
+ support::ulittle32_t NumberOfSections;
+ support::ulittle32_t PointerToSymbolTable;
+ support::ulittle32_t NumberOfSymbols;
+};
+
/// The 32-bit PE header that follows the COFF header.
struct pe32_header {
support::ulittle16_t Magic;
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;
- };
+struct StringTableOffset {
+ support::ulittle32_t Zeroes;
+ support::ulittle32_t Offset;
+};
+template <typename SectionNumberType>
+struct coff_symbol {
union {
- char ShortName[8];
+ char ShortName[COFF::NameSize];
StringTableOffset Offset;
} Name;
support::ulittle32_t Value;
- support::ulittle16_t SectionNumber;
+ SectionNumberType SectionNumber;
support::ulittle16_t Type;
support::ulittle8_t StorageClass;
support::ulittle8_t NumberOfAuxSymbols;
+};
+
+typedef coff_symbol<support::ulittle16_t> coff_symbol16;
+typedef coff_symbol<support::ulittle32_t> coff_symbol32;
+
+class COFFSymbolRef {
+public:
+ COFFSymbolRef(const coff_symbol16 *CS) : CS16(CS), CS32(nullptr) {}
+ COFFSymbolRef(const coff_symbol32 *CS) : CS16(nullptr), CS32(CS) {}
+ COFFSymbolRef() : CS16(nullptr), CS32(nullptr) {}
+
+ const void *getRawPtr() const {
+ return CS16 ? static_cast<const void *>(CS16) : CS32;
+ }
+
+ friend bool operator<(COFFSymbolRef A, COFFSymbolRef B) {
+ return A.getRawPtr() < B.getRawPtr();
+ }
+
+ const char *getShortName() const {
+ return CS16 ? CS16->Name.ShortName : CS32->Name.ShortName;
+ }
+
+ const StringTableOffset &getStringTableOffset() const {
+ return CS16 ? CS16->Name.Offset : CS32->Name.Offset;
+ }
+
+ uint32_t getValue() const { return CS16 ? CS16->Value : CS32->Value; }
+
+ int32_t getSectionNumber() const {
+ if (CS16) {
+ // Reserved sections are returned as negative numbers.
+ if (CS16->SectionNumber <= COFF::MaxNumberOfSections16)
+ return CS16->SectionNumber;
+ return static_cast<int16_t>(CS16->SectionNumber);
+ }
+ return static_cast<int32_t>(CS32->SectionNumber);
+ }
- uint8_t getBaseType() const { return Type & 0x0F; }
+ uint16_t getType() const { return CS16 ? CS16->Type : CS32->Type; }
- uint8_t getComplexType() const { return (Type & 0xF0) >> 4; }
+ uint8_t getStorageClass() const {
+ return CS16 ? CS16->StorageClass : CS32->StorageClass;
+ }
+
+ uint8_t getNumberOfAuxSymbols() const {
+ return CS16 ? CS16->NumberOfAuxSymbols : CS32->NumberOfAuxSymbols;
+ }
+
+ uint8_t getBaseType() const { return getType() & 0x0F; }
+
+ uint8_t getComplexType() const { return (getType() & 0xF0) >> 4; }
bool isFunctionDefinition() const {
- return StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL &&
+ return getStorageClass() == COFF::IMAGE_SYM_CLASS_EXTERNAL &&
getBaseType() == COFF::IMAGE_SYM_TYPE_NULL &&
getComplexType() == COFF::IMAGE_SYM_DTYPE_FUNCTION &&
- !COFF::isReservedSectionNumber(SectionNumber);
+ !COFF::isReservedSectionNumber(getSectionNumber());
}
bool isFunctionLineInfo() const {
- return StorageClass == COFF::IMAGE_SYM_CLASS_FUNCTION;
+ return getStorageClass() == COFF::IMAGE_SYM_CLASS_FUNCTION;
}
bool isWeakExternal() const {
- return StorageClass == COFF::IMAGE_SYM_CLASS_WEAK_EXTERNAL ||
- (StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL &&
- SectionNumber == COFF::IMAGE_SYM_UNDEFINED && Value == 0);
+ return getStorageClass() == COFF::IMAGE_SYM_CLASS_WEAK_EXTERNAL ||
+ (getStorageClass() == COFF::IMAGE_SYM_CLASS_EXTERNAL &&
+ getSectionNumber() == COFF::IMAGE_SYM_UNDEFINED && getValue() == 0);
}
bool isFileRecord() const {
- return StorageClass == COFF::IMAGE_SYM_CLASS_FILE;
+ return getStorageClass() == COFF::IMAGE_SYM_CLASS_FILE;
}
bool isSectionDefinition() const {
// C++/CLI creates external ABS symbols for non-const appdomain globals.
// These are also followed by an auxiliary section definition.
- bool isAppdomainGlobal = StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL &&
- SectionNumber == COFF::IMAGE_SYM_ABSOLUTE;
+ bool isAppdomainGlobal =
+ getStorageClass() == COFF::IMAGE_SYM_CLASS_EXTERNAL &&
+ getSectionNumber() == COFF::IMAGE_SYM_ABSOLUTE;
bool isOrdinarySection =
- StorageClass == COFF::IMAGE_SYM_CLASS_STATIC && Value == 0;
+ getStorageClass() == COFF::IMAGE_SYM_CLASS_STATIC && getValue() == 0;
return isAppdomainGlobal || isOrdinarySection;
}
bool isCLRToken() const {
- return StorageClass == COFF::IMAGE_SYM_CLASS_CLR_TOKEN;
+ return getStorageClass() == COFF::IMAGE_SYM_CLASS_CLR_TOKEN;
}
+
+private:
+ const coff_symbol16 *CS16;
+ const coff_symbol32 *CS32;
};
struct coff_section {
- char Name[8];
+ char Name[COFF::NameSize];
support::ulittle32_t VirtualSize;
support::ulittle32_t VirtualAddress;
support::ulittle32_t SizeOfRawData;
support::ulittle32_t TotalSize;
support::ulittle32_t PointerToLinenumber;
support::ulittle32_t PointerToNextFunction;
- char Unused[2];
};
struct coff_aux_bf_and_ef_symbol {
support::ulittle16_t Linenumber;
char Unused2[6];
support::ulittle32_t PointerToNextFunction;
- char Unused3[2];
};
struct coff_aux_weak_external {
support::ulittle32_t TagIndex;
support::ulittle32_t Characteristics;
- char Unused[10];
-};
-
-struct coff_aux_file {
- char FileName[18];
};
struct coff_aux_section_definition {
support::ulittle32_t CheckSum;
support::ulittle16_t Number;
support::ulittle8_t Selection;
- char Unused[3];
};
struct coff_aux_clr_token {
support::ulittle8_t AuxType;
support::ulittle8_t Reserved;
support::ulittle32_t SymbolTableIndex;
- char Unused[12];
};
struct coff_load_configuration32 {
support::ulittle32_t ProcessAffinityMask;
support::ulittle32_t ProcessHeapFlags;
support::ulittle16_t CSDVersion;
- uint16_t Reserved;
+ support::ulittle16_t Reserved;
support::ulittle32_t EditList;
support::ulittle32_t SecurityCookie;
support::ulittle32_t SEHandlerTable;
friend class ImportDirectoryEntryRef;
friend class ExportDirectoryEntryRef;
const coff_file_header *COFFHeader;
+ const coff_bigobj_file_header *COFFBigObjHeader;
const pe32_header *PE32Header;
const pe32plus_header *PE32PlusHeader;
const data_directory *DataDirectory;
const coff_section *SectionTable;
- const coff_symbol *SymbolTable;
+ const coff_symbol16 *SymbolTable16;
+ const coff_symbol32 *SymbolTable32;
const char *StringTable;
uint32_t StringTableSize;
const import_directory_table_entry *ImportDirectory;
std::error_code getString(uint32_t offset, StringRef &Res) const;
- const coff_symbol *toSymb(DataRefImpl Symb) const;
+ template <typename coff_symbol_type>
+ const coff_symbol_type *toSymb(DataRefImpl Symb) const;
const coff_section *toSec(DataRefImpl Sec) const;
const coff_relocation *toRel(DataRefImpl Rel) const;
std::error_code initImportTablePtr();
std::error_code initExportTablePtr();
+public:
+ uintptr_t getSymbolTable() const {
+ if (SymbolTable16)
+ return reinterpret_cast<uintptr_t>(SymbolTable16);
+ if (SymbolTable32)
+ return reinterpret_cast<uintptr_t>(SymbolTable32);
+ return uintptr_t(0);
+ }
+ uint16_t getMachine() const {
+ if (COFFHeader)
+ return COFFHeader->Machine;
+ if (COFFBigObjHeader)
+ return COFFBigObjHeader->Machine;
+ llvm_unreachable("no COFF header!");
+ }
+ uint16_t getSizeOfOptionalHeader() const {
+ if (COFFHeader)
+ return COFFHeader->SizeOfOptionalHeader;
+ // bigobj doesn't have this field.
+ if (COFFBigObjHeader)
+ return 0;
+ llvm_unreachable("no COFF header!");
+ }
+ uint16_t getCharacteristics() const {
+ if (COFFHeader)
+ return COFFHeader->Characteristics;
+ // bigobj doesn't have characteristics to speak of,
+ // editbin will silently lie to you if you attempt to set any.
+ if (COFFBigObjHeader)
+ return 0;
+ llvm_unreachable("no COFF header!");
+ }
+ uint32_t getTimeDateStamp() const {
+ 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,
getRelocationValueString(DataRefImpl Rel,
SmallVectorImpl<char> &Result) const override;
- std::error_code getLibraryNext(DataRefImpl LibData,
- LibraryRef &Result) const override;
- std::error_code getLibraryPath(DataRefImpl LibData,
- StringRef &Result) const override;
-
public:
- COFFObjectFile(MemoryBuffer *Object, std::error_code &EC,
- bool BufferOwned = true);
+ COFFObjectFile(MemoryBufferRef Object, std::error_code &EC);
basic_symbol_iterator symbol_begin_impl() const override;
basic_symbol_iterator symbol_end_impl() const override;
- library_iterator needed_library_begin() const override;
- library_iterator needed_library_end() const override;
section_iterator section_begin() const override;
section_iterator section_end() const override;
const coff_section *getCOFFSection(const SectionRef &Section) const;
- const coff_symbol *getCOFFSymbol(const SymbolRef &Symbol) 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;
- StringRef getLoadName() 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 getHeader(const coff_file_header *&Res) const;
- std::error_code getCOFFHeader(const coff_file_header *&Res) 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;
- std::error_code getSymbol(uint32_t index, const coff_symbol *&Res) const;
+ template <typename coff_symbol_type>
+ std::error_code getSymbol(uint32_t Index,
+ const coff_symbol_type *&Res) const {
+ if (Index < getNumberOfSymbols())
+ Res = reinterpret_cast<coff_symbol_type *>(getSymbolTable()) + Index;
+ else
+ return object_error::parse_failed;
+ 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 {
- const coff_symbol *s;
- std::error_code ec = getSymbol(index, s);
- Res = reinterpret_cast<const T *>(s);
- return ec;
+ 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 getSymbolName(const coff_symbol *symbol,
- StringRef &Res) const;
- ArrayRef<uint8_t> getSymbolAuxData(const coff_symbol *symbol) const;
std::error_code getSectionName(const coff_section *Sec, StringRef &Res) const;
std::error_code getSectionContents(const coff_section *Sec,
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(); }
};
projects / oota-llvm.git / blobdiff