forked from OSchip/llvm-project
llvm-readobj: add support for PE32+ (Windows 64 bit executable).
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. llvm-svn: 200117
This commit is contained in:
Rui Ueyama
parent
e52d556614
commit
10ed9ddc8f
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@ -250,6 +250,7 @@ private:
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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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@ -347,6 +348,7 @@ public:
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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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@ -466,8 +466,8 @@ error_code COFFObjectFile::initExportTablePtr() {
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COFFObjectFile::COFFObjectFile(MemoryBuffer *Object, error_code &EC,
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bool BufferOwned)
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: ObjectFile(Binary::ID_COFF, Object, BufferOwned), COFFHeader(0),
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PE32Header(0), DataDirectory(0), SectionTable(0), SymbolTable(0),
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StringTable(0), StringTableSize(0), ImportDirectory(0),
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PE32Header(0), PE32PlusHeader(0), DataDirectory(0), SectionTable(0),
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SymbolTable(0), StringTable(0), StringTableSize(0), ImportDirectory(0),
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NumberOfImportDirectory(0), ExportDirectory(0) {
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// Check that we at least have enough room for a header.
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if (!checkSize(Data, EC, sizeof(coff_file_header))) return;
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@ -499,19 +499,27 @@ COFFObjectFile::COFFObjectFile(MemoryBuffer *Object, error_code &EC,
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CurPtr += sizeof(coff_file_header);
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if (HasPEHeader) {
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if ((EC = getObject(PE32Header, Data, base() + CurPtr)))
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const pe32_header *Header;
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if ((EC = getObject(Header, Data, base() + CurPtr)))
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return;
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const uint8_t *DataDirAddr;
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uint64_t DataDirSize;
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if (Header->Magic == 0x10b) {
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PE32Header = Header;
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DataDirAddr = base() + CurPtr + sizeof(pe32_header);
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DataDirSize = sizeof(data_directory) * PE32Header->NumberOfRvaAndSize;
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} else if (Header->Magic == 0x20b) {
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PE32PlusHeader = reinterpret_cast<const pe32plus_header *>(Header);
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DataDirAddr = base() + CurPtr + sizeof(pe32plus_header);
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DataDirSize = sizeof(data_directory) * PE32PlusHeader->NumberOfRvaAndSize;
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} else {
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// It's neither PE32 nor PE32+.
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EC = object_error::parse_failed;
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return;
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if (PE32Header->Magic != 0x10b) {
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// We only support PE32. If this is PE32 (not PE32+), the magic byte
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// should be 0x10b. If this is not PE32, continue as if there's no PE
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// header in this file.
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PE32Header = 0;
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} else if (PE32Header->NumberOfRvaAndSize > 0) {
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const uint8_t *Addr = base() + CurPtr + sizeof(pe32_header);
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uint64_t size = sizeof(data_directory) * PE32Header->NumberOfRvaAndSize;
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if ((EC = getObject(DataDirectory, Data, Addr, size)))
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return;
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}
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if ((EC = getObject(DataDirectory, Data, DataDirAddr, DataDirSize)))
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return;
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CurPtr += COFFHeader->SizeOfOptionalHeader;
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}
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@ -655,10 +663,21 @@ error_code COFFObjectFile::getPE32Header(const pe32_header *&Res) const {
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return object_error::success;
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}
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error_code
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COFFObjectFile::getPE32PlusHeader(const pe32plus_header *&Res) const {
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Res = PE32PlusHeader;
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return object_error::success;
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}
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error_code COFFObjectFile::getDataDirectory(uint32_t Index,
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const data_directory *&Res) const {
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// Error if if there's no data directory or the index is out of range.
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if (!DataDirectory || Index > PE32Header->NumberOfRvaAndSize)
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if (!DataDirectory)
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return object_error::parse_failed;
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assert(PE32Header || PE32PlusHeader);
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uint32_t NumEnt = PE32Header ? PE32Header->NumberOfRvaAndSize
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: PE32PlusHeader->NumberOfRvaAndSize;
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if (Index > NumEnt)
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return object_error::parse_failed;
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Res = &DataDirectory[Index];
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return object_error::success;
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Binary file not shown.
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@ -0,0 +1,82 @@
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RUN: llvm-readobj -file-headers %p/Inputs/nop.exe.coff-x86-64 | FileCheck %s
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CHECK: Format: COFF-x86-64
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CHECK: Arch: x86_64
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CHECK: AddressSize: 64bit
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CHECK: ImageFileHeader {
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CHECK: Machine: IMAGE_FILE_MACHINE_AMD64 (0x8664)
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CHECK: SectionCount: 1
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CHECK: TimeDateStamp: 2014-01-26 03:43:56 (0x52E4847C)
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CHECK: PointerToSymbolTable: 0x0
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CHECK: SymbolCount: 0
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CHECK: OptionalHeaderSize: 240
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CHECK: Characteristics [ (0x22)
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CHECK: IMAGE_FILE_EXECUTABLE_IMAGE (0x2)
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CHECK: IMAGE_FILE_LARGE_ADDRESS_AWARE (0x20)
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CHECK: ]
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CHECK: }
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CHECK: ImageOptionalHeader {
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CHECK: MajorLinkerVersion: 11
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CHECK: MinorLinkerVersion: 0
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CHECK: SizeOfCode: 512
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CHECK: SizeOfInitializedData: 0
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CHECK: SizeOfUninitializedData: 0
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CHECK: AddressOfEntryPoint: 0x1000
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CHECK: BaseOfCode: 0x1000
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CHECK: ImageBase: 0x140000000
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CHECK: SectionAlignment: 4096
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CHECK: FileAlignment: 512
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CHECK: MajorOperatingSystemVersion: 6
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CHECK: MinorOperatingSystemVersion: 0
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CHECK: MajorImageVersion: 0
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CHECK: MinorImageVersion: 0
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CHECK: MajorSubsystemVersion: 6
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CHECK: MinorSubsystemVersion: 0
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CHECK: SizeOfImage: 8192
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CHECK: SizeOfHeaders: 512
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CHECK: Subsystem: IMAGE_SUBSYSTEM_WINDOWS_CUI (0x3)
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CHECK: Subsystem [ (0x8160)
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CHECK: IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE (0x40)
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CHECK: IMAGE_DLL_CHARACTERISTICS_NX_COMPAT (0x100)
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CHECK: IMAGE_DLL_CHARACTERISTICS_TERMINAL_SERVER_AWARE (0x8000)
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CHECK: ]
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CHECK: SizeOfStackReserve: 1048576
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CHECK: SizeOfStackCommit: 4096
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CHECK: SizeOfHeapReserve: 1048576
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CHECK: SizeOfHeapCommit: 4096
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CHECK: NumberOfRvaAndSize: 16
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CHECK: DataDirectory {
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CHECK: ExportTableRVA: 0x0
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CHECK: ExportTableSize: 0x0
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CHECK: ImportTableRVA: 0x0
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CHECK: ImportTableSize: 0x0
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CHECK: ResourceTableRVA: 0x0
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CHECK: ResourceTableSize: 0x0
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CHECK: ExceptionTableRVA: 0x0
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CHECK: ExceptionTableSize: 0x0
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CHECK: CertificateTableRVA: 0x0
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CHECK: CertificateTableSize: 0x0
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CHECK: BaseRelocationTableRVA: 0x0
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CHECK: BaseRelocationTableSize: 0x0
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CHECK: DebugRVA: 0x0
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CHECK: DebugSize: 0x0
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CHECK: ArchitectureRVA: 0x0
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CHECK: ArchitectureSize: 0x0
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CHECK: GlobalPtrRVA: 0x0
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CHECK: GlobalPtrSize: 0x0
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CHECK: TLSTableRVA: 0x0
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CHECK: TLSTableSize: 0x0
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CHECK: LoadConfigTableRVA: 0x0
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CHECK: LoadConfigTableSize: 0x0
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CHECK: BoundImportRVA: 0x0
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CHECK: BoundImportSize: 0x0
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CHECK: IATRVA: 0x0
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CHECK: IATSize: 0x0
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CHECK: DelayImportDescriptorRVA: 0x0
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CHECK: DelayImportDescriptorSize: 0x0
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CHECK: CLRRuntimeHeaderRVA: 0x0
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CHECK: CLRRuntimeHeaderSize: 0x0
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CHECK: ReservedRVA: 0x0
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CHECK: ReservedSize: 0x0
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CHECK: }
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CHECK: }
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@ -56,13 +56,14 @@ public:
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private:
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void printSymbol(symbol_iterator SymI);
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void printRelocation(section_iterator SecI, relocation_iterator RelI);
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void printDataDirectory(uint32_t Index, const std::string &FieldName);
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void printX64UnwindInfo();
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template <class PEHeader> void printPEHeader(const PEHeader *Hdr);
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void printBaseOfDataField(const pe32_header *Hdr);
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void printBaseOfDataField(const pe32plus_header *Hdr);
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void printRuntimeFunction(
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const RuntimeFunction& RTF,
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uint64_t OffsetInSection,
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@ -599,56 +600,70 @@ void COFFDumper::printFileHeaders() {
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const pe32_header *PEHeader = 0;
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if (error(Obj->getPE32Header(PEHeader)))
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return;
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if (PEHeader)
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printPEHeader<pe32_header>(PEHeader);
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if (PEHeader) {
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DictScope D(W, "ImageOptionalHeader");
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W.printNumber("MajorLinkerVersion", PEHeader->MajorLinkerVersion);
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W.printNumber("MinorLinkerVersion", PEHeader->MinorLinkerVersion);
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W.printNumber("SizeOfCode", PEHeader->SizeOfCode);
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W.printNumber("SizeOfInitializedData", PEHeader->SizeOfInitializedData);
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W.printNumber("SizeOfUninitializedData", PEHeader->SizeOfUninitializedData);
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W.printHex ("AddressOfEntryPoint", PEHeader->AddressOfEntryPoint);
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W.printHex ("BaseOfCode", PEHeader->BaseOfCode);
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W.printHex ("BaseOfData", PEHeader->BaseOfData);
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W.printHex ("ImageBase", PEHeader->ImageBase);
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W.printNumber("SectionAlignment", PEHeader->SectionAlignment);
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W.printNumber("FileAlignment", PEHeader->FileAlignment);
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W.printNumber("MajorOperatingSystemVersion",
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PEHeader->MajorOperatingSystemVersion);
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W.printNumber("MinorOperatingSystemVersion",
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PEHeader->MinorOperatingSystemVersion);
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W.printNumber("MajorImageVersion", PEHeader->MajorImageVersion);
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W.printNumber("MinorImageVersion", PEHeader->MinorImageVersion);
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W.printNumber("MajorSubsystemVersion", PEHeader->MajorSubsystemVersion);
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W.printNumber("MinorSubsystemVersion", PEHeader->MinorSubsystemVersion);
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W.printNumber("SizeOfImage", PEHeader->SizeOfImage);
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W.printNumber("SizeOfHeaders", PEHeader->SizeOfHeaders);
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W.printEnum ("Subsystem", PEHeader->Subsystem,
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makeArrayRef(PEWindowsSubsystem));
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W.printFlags ("Subsystem", PEHeader->DLLCharacteristics,
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makeArrayRef(PEDLLCharacteristics));
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W.printNumber("SizeOfStackReserve", PEHeader->SizeOfStackReserve);
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W.printNumber("SizeOfStackCommit", PEHeader->SizeOfStackCommit);
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W.printNumber("SizeOfHeapReserve", PEHeader->SizeOfHeapReserve);
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W.printNumber("SizeOfHeapCommit", PEHeader->SizeOfHeapCommit);
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W.printNumber("NumberOfRvaAndSize", PEHeader->NumberOfRvaAndSize);
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const pe32plus_header *PEPlusHeader = 0;
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if (error(Obj->getPE32PlusHeader(PEPlusHeader)))
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return;
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if (PEPlusHeader)
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printPEHeader<pe32plus_header>(PEPlusHeader);
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}
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if (PEHeader->NumberOfRvaAndSize > 0) {
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DictScope D(W, "DataDirectory");
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static const char * const directory[] = {
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"ExportTable", "ImportTable", "ResourceTable", "ExceptionTable",
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"CertificateTable", "BaseRelocationTable", "Debug", "Architecture",
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"GlobalPtr", "TLSTable", "LoadConfigTable", "BoundImport", "IAT",
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"DelayImportDescriptor", "CLRRuntimeHeader", "Reserved"
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};
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template <class PEHeader>
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void COFFDumper::printPEHeader(const PEHeader *Hdr) {
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DictScope D(W, "ImageOptionalHeader");
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W.printNumber("MajorLinkerVersion", Hdr->MajorLinkerVersion);
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W.printNumber("MinorLinkerVersion", Hdr->MinorLinkerVersion);
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W.printNumber("SizeOfCode", Hdr->SizeOfCode);
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W.printNumber("SizeOfInitializedData", Hdr->SizeOfInitializedData);
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W.printNumber("SizeOfUninitializedData", Hdr->SizeOfUninitializedData);
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W.printHex ("AddressOfEntryPoint", Hdr->AddressOfEntryPoint);
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W.printHex ("BaseOfCode", Hdr->BaseOfCode);
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printBaseOfDataField(Hdr);
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W.printHex ("ImageBase", Hdr->ImageBase);
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W.printNumber("SectionAlignment", Hdr->SectionAlignment);
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W.printNumber("FileAlignment", Hdr->FileAlignment);
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W.printNumber("MajorOperatingSystemVersion",
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Hdr->MajorOperatingSystemVersion);
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W.printNumber("MinorOperatingSystemVersion",
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Hdr->MinorOperatingSystemVersion);
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W.printNumber("MajorImageVersion", Hdr->MajorImageVersion);
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W.printNumber("MinorImageVersion", Hdr->MinorImageVersion);
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W.printNumber("MajorSubsystemVersion", Hdr->MajorSubsystemVersion);
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W.printNumber("MinorSubsystemVersion", Hdr->MinorSubsystemVersion);
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W.printNumber("SizeOfImage", Hdr->SizeOfImage);
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W.printNumber("SizeOfHeaders", Hdr->SizeOfHeaders);
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W.printEnum ("Subsystem", Hdr->Subsystem, makeArrayRef(PEWindowsSubsystem));
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W.printFlags ("Subsystem", Hdr->DLLCharacteristics,
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makeArrayRef(PEDLLCharacteristics));
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W.printNumber("SizeOfStackReserve", Hdr->SizeOfStackReserve);
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W.printNumber("SizeOfStackCommit", Hdr->SizeOfStackCommit);
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W.printNumber("SizeOfHeapReserve", Hdr->SizeOfHeapReserve);
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W.printNumber("SizeOfHeapCommit", Hdr->SizeOfHeapCommit);
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W.printNumber("NumberOfRvaAndSize", Hdr->NumberOfRvaAndSize);
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for (uint32_t i = 0; i < PEHeader->NumberOfRvaAndSize; ++i) {
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printDataDirectory(i, directory[i]);
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}
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if (Hdr->NumberOfRvaAndSize > 0) {
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DictScope D(W, "DataDirectory");
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static const char * const directory[] = {
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"ExportTable", "ImportTable", "ResourceTable", "ExceptionTable",
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"CertificateTable", "BaseRelocationTable", "Debug", "Architecture",
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"GlobalPtr", "TLSTable", "LoadConfigTable", "BoundImport", "IAT",
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"DelayImportDescriptor", "CLRRuntimeHeader", "Reserved"
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};
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for (uint32_t i = 0; i < Hdr->NumberOfRvaAndSize; ++i) {
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printDataDirectory(i, directory[i]);
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}
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}
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}
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void COFFDumper::printBaseOfDataField(const pe32_header *Hdr) {
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W.printHex("BaseOfData", Hdr->BaseOfData);
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}
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void COFFDumper::printBaseOfDataField(const pe32plus_header *) {}
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void COFFDumper::printCodeViewLineTables(section_iterator SecI) {
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StringRef Data;
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if (error(SecI->getContents(Data))) return;
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