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Diffstat (limited to 'tools/yaml2obj/yaml2obj.cpp')
| -rw-r--r-- | tools/yaml2obj/yaml2obj.cpp | 680 |
1 files changed, 680 insertions, 0 deletions
diff --git a/tools/yaml2obj/yaml2obj.cpp b/tools/yaml2obj/yaml2obj.cpp new file mode 100644 index 0000000000..707b6b4d5c --- /dev/null +++ b/tools/yaml2obj/yaml2obj.cpp @@ -0,0 +1,680 @@ +//===- yaml2obj - Convert YAML to a binary object file --------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This program takes a YAML description of an object file and outputs the +// binary equivalent. +// +// This is used for writing tests that require binary files. +// +//===----------------------------------------------------------------------===// + +#include "llvm/ADT/SmallString.h" +#include "llvm/ADT/StringExtras.h" +#include "llvm/ADT/StringMap.h" +#include "llvm/ADT/StringSwitch.h" +#include "llvm/Support/COFF.h" +#include "llvm/Support/Casting.h" +#include "llvm/Support/CommandLine.h" +#include "llvm/Support/Endian.h" +#include "llvm/Support/ManagedStatic.h" +#include "llvm/Support/MemoryBuffer.h" +#include "llvm/Support/PrettyStackTrace.h" +#include "llvm/Support/Signals.h" +#include "llvm/Support/SourceMgr.h" +#include "llvm/Support/YAMLTraits.h" +#include "llvm/Support/raw_ostream.h" +#include "llvm/Support/system_error.h" +#include <vector> + +using namespace llvm; + +static cl::opt<std::string> + Input(cl::Positional, cl::desc("<input>"), cl::init("-")); + +// The structure of the yaml files is not an exact 1:1 match to COFF. In order +// to use yaml::IO, we use these structures which are closer to the source. +namespace COFFYAML { + struct Section { + COFF::section Header; + unsigned Alignment; + StringRef SectionData; + std::vector<COFF::relocation> Relocations; + StringRef Name; + Section() { + memset(&Header, 0, sizeof(COFF::section)); + } + }; + + struct Symbol { + COFF::symbol Header; + COFF::SymbolBaseType SimpleType; + COFF::SymbolComplexType ComplexType; + StringRef AuxiliaryData; + StringRef Name; + Symbol() { + memset(&Header, 0, sizeof(COFF::symbol)); + } + }; + + struct Object { + COFF::header Header; + std::vector<Section> Sections; + std::vector<Symbol> Symbols; + Object() { + memset(&Header, 0, sizeof(COFF::header)); + } + }; +} + +/// This parses a yaml stream that represents a COFF object file. +/// See docs/yaml2obj for the yaml scheema. +struct COFFParser { + COFFParser(COFFYAML::Object &Obj) : Obj(Obj) { + // A COFF string table always starts with a 4 byte size field. Offsets into + // it include this size, so allocate it now. + StringTable.append(4, 0); + } + + bool parseSections() { + for (std::vector<COFFYAML::Section>::iterator i = Obj.Sections.begin(), + e = Obj.Sections.end(); i != e; ++i) { + COFFYAML::Section &Sec = *i; + + // If the name is less than 8 bytes, store it in place, otherwise + // store it in the string table. + StringRef Name = Sec.Name; + + if (Name.size() <= COFF::NameSize) { + std::copy(Name.begin(), Name.end(), Sec.Header.Name); + } else { + // Add string to the string table and format the index for output. + unsigned Index = getStringIndex(Name); + std::string str = utostr(Index); + if (str.size() > 7) { + errs() << "String table got too large"; + return false; + } + Sec.Header.Name[0] = '/'; + std::copy(str.begin(), str.end(), Sec.Header.Name + 1); + } + + Sec.Header.Characteristics |= (Log2_32(Sec.Alignment) + 1) << 20; + } + return true; + } + + bool parseSymbols() { + for (std::vector<COFFYAML::Symbol>::iterator i = Obj.Symbols.begin(), + e = Obj.Symbols.end(); i != e; ++i) { + COFFYAML::Symbol &Sym = *i; + + // If the name is less than 8 bytes, store it in place, otherwise + // store it in the string table. + StringRef Name = Sym.Name; + if (Name.size() <= COFF::NameSize) { + std::copy(Name.begin(), Name.end(), Sym.Header.Name); + } else { + // Add string to the string table and format the index for output. + unsigned Index = getStringIndex(Name); + *reinterpret_cast<support::aligned_ulittle32_t*>( + Sym.Header.Name + 4) = Index; + } + + Sym.Header.Type = Sym.SimpleType; + Sym.Header.Type |= Sym.ComplexType << COFF::SCT_COMPLEX_TYPE_SHIFT; + } + return true; + } + + bool parse() { + if (!parseSections()) + return false; + if (!parseSymbols()) + return false; + return true; + } + + unsigned getStringIndex(StringRef Str) { + StringMap<unsigned>::iterator i = StringTableMap.find(Str); + if (i == StringTableMap.end()) { + unsigned Index = StringTable.size(); + StringTable.append(Str.begin(), Str.end()); + StringTable.push_back(0); + StringTableMap[Str] = Index; + return Index; + } + return i->second; + } + + COFFYAML::Object &Obj; + + StringMap<unsigned> StringTableMap; + std::string StringTable; +}; + +// Take a CP and assign addresses and sizes to everything. Returns false if the +// layout is not valid to do. +static bool layoutCOFF(COFFParser &CP) { + uint32_t SectionTableStart = 0; + uint32_t SectionTableSize = 0; + + // The section table starts immediately after the header, including the + // optional header. + SectionTableStart = sizeof(COFF::header) + CP.Obj.Header.SizeOfOptionalHeader; + SectionTableSize = sizeof(COFF::section) * CP.Obj.Sections.size(); + + uint32_t CurrentSectionDataOffset = SectionTableStart + SectionTableSize; + + // Assign each section data address consecutively. + for (std::vector<COFFYAML::Section>::iterator i = CP.Obj.Sections.begin(), + e = CP.Obj.Sections.end(); + i != e; ++i) { + if (!i->SectionData.empty()) { + i->Header.SizeOfRawData = i->SectionData.size()/2; + i->Header.PointerToRawData = CurrentSectionDataOffset; + CurrentSectionDataOffset += i->Header.SizeOfRawData; + if (!i->Relocations.empty()) { + i->Header.PointerToRelocations = CurrentSectionDataOffset; + i->Header.NumberOfRelocations = i->Relocations.size(); + CurrentSectionDataOffset += i->Header.NumberOfRelocations * + COFF::RelocationSize; + } + // TODO: Handle alignment. + } else { + i->Header.SizeOfRawData = 0; + i->Header.PointerToRawData = 0; + } + } + + uint32_t SymbolTableStart = CurrentSectionDataOffset; + + // Calculate number of symbols. + uint32_t NumberOfSymbols = 0; + for (std::vector<COFFYAML::Symbol>::iterator i = CP.Obj.Symbols.begin(), + e = CP.Obj.Symbols.end(); + i != e; ++i) { + unsigned AuxBytes = i->AuxiliaryData.size() / 2; + if (AuxBytes % COFF::SymbolSize != 0) { + errs() << "AuxiliaryData size not a multiple of symbol size!\n"; + return false; + } + i->Header.NumberOfAuxSymbols = AuxBytes / COFF::SymbolSize; + NumberOfSymbols += 1 + i->Header.NumberOfAuxSymbols; + } + + // Store all the allocated start addresses in the header. + CP.Obj.Header.NumberOfSections = CP.Obj.Sections.size(); + CP.Obj.Header.NumberOfSymbols = NumberOfSymbols; + CP.Obj.Header.PointerToSymbolTable = SymbolTableStart; + + *reinterpret_cast<support::ulittle32_t *>(&CP.StringTable[0]) + = CP.StringTable.size(); + + return true; +} + +template <typename value_type> +struct binary_le_impl { + value_type Value; + binary_le_impl(value_type V) : Value(V) {} +}; + +template <typename value_type> +raw_ostream &operator <<( raw_ostream &OS + , const binary_le_impl<value_type> &BLE) { + char Buffer[sizeof(BLE.Value)]; + support::endian::write<value_type, support::little, support::unaligned>( + Buffer, BLE.Value); + OS.write(Buffer, sizeof(BLE.Value)); + return OS; +} + +template <typename value_type> +binary_le_impl<value_type> binary_le(value_type V) { + return binary_le_impl<value_type>(V); +} + +static bool writeHexData(StringRef Data, raw_ostream &OS) { + unsigned Size = Data.size(); + if (Size % 2) + return false; + + for (unsigned I = 0; I != Size; I += 2) { + uint8_t Byte; + if (Data.substr(I, 2).getAsInteger(16, Byte)) + return false; + OS.write(Byte); + } + + return true; +} + +bool writeCOFF(COFFParser &CP, raw_ostream &OS) { + OS << binary_le(CP.Obj.Header.Machine) + << binary_le(CP.Obj.Header.NumberOfSections) + << binary_le(CP.Obj.Header.TimeDateStamp) + << binary_le(CP.Obj.Header.PointerToSymbolTable) + << binary_le(CP.Obj.Header.NumberOfSymbols) + << binary_le(CP.Obj.Header.SizeOfOptionalHeader) + << binary_le(CP.Obj.Header.Characteristics); + + // Output section table. + for (std::vector<COFFYAML::Section>::iterator i = CP.Obj.Sections.begin(), + e = CP.Obj.Sections.end(); + i != e; ++i) { + OS.write(i->Header.Name, COFF::NameSize); + OS << binary_le(i->Header.VirtualSize) + << binary_le(i->Header.VirtualAddress) + << binary_le(i->Header.SizeOfRawData) + << binary_le(i->Header.PointerToRawData) + << binary_le(i->Header.PointerToRelocations) + << binary_le(i->Header.PointerToLineNumbers) + << binary_le(i->Header.NumberOfRelocations) + << binary_le(i->Header.NumberOfLineNumbers) + << binary_le(i->Header.Characteristics); + } + + // Output section data. + for (std::vector<COFFYAML::Section>::iterator i = CP.Obj.Sections.begin(), + e = CP.Obj.Sections.end(); + i != e; ++i) { + if (!i->SectionData.empty()) { + if (!writeHexData(i->SectionData, OS)) { + errs() << "SectionData must be a collection of pairs of hex bytes"; + return false; + } + } + for (unsigned I2 = 0, E2 = i->Relocations.size(); I2 != E2; ++I2) { + const COFF::relocation &R = i->Relocations[I2]; + OS << binary_le(R.VirtualAddress) + << binary_le(R.SymbolTableIndex) + << binary_le(R.Type); + } + } + + // Output symbol table. + + for (std::vector<COFFYAML::Symbol>::const_iterator i = CP.Obj.Symbols.begin(), + e = CP.Obj.Symbols.end(); + i != e; ++i) { + OS.write(i->Header.Name, COFF::NameSize); + OS << binary_le(i->Header.Value) + << binary_le(i->Header.SectionNumber) + << binary_le(i->Header.Type) + << binary_le(i->Header.StorageClass) + << binary_le(i->Header.NumberOfAuxSymbols); + if (!i->AuxiliaryData.empty()) { + if (!writeHexData(i->AuxiliaryData, OS)) { + errs() << "AuxiliaryData must be a collection of pairs of hex bytes"; + return false; + } + } + } + + // Output string table. + OS.write(&CP.StringTable[0], CP.StringTable.size()); + return true; +} + +LLVM_YAML_IS_SEQUENCE_VECTOR(COFF::relocation) +LLVM_YAML_IS_SEQUENCE_VECTOR(COFFYAML::Section) +LLVM_YAML_IS_SEQUENCE_VECTOR(COFFYAML::Symbol) + +namespace llvm { + +namespace COFF { + Characteristics operator|(Characteristics a, Characteristics b) { + uint32_t Ret = static_cast<uint32_t>(a) | static_cast<uint32_t>(b); + return static_cast<Characteristics>(Ret); + } + + SectionCharacteristics + operator|(SectionCharacteristics a, SectionCharacteristics b) { + uint32_t Ret = static_cast<uint32_t>(a) | static_cast<uint32_t>(b); + return static_cast<SectionCharacteristics>(Ret); + } +} + +namespace yaml { + +#define BCase(X) IO.bitSetCase(Value, #X, COFF::X); + +template <> +struct ScalarBitSetTraits<COFF::SectionCharacteristics> { + static void bitset(IO &IO, COFF::SectionCharacteristics &Value) { + BCase(IMAGE_SCN_TYPE_NO_PAD); + BCase(IMAGE_SCN_CNT_CODE); + BCase(IMAGE_SCN_CNT_INITIALIZED_DATA); + BCase(IMAGE_SCN_CNT_UNINITIALIZED_DATA); + BCase(IMAGE_SCN_LNK_OTHER); + BCase(IMAGE_SCN_LNK_INFO); + BCase(IMAGE_SCN_LNK_REMOVE); + BCase(IMAGE_SCN_LNK_COMDAT); + BCase(IMAGE_SCN_GPREL); + BCase(IMAGE_SCN_MEM_PURGEABLE); + BCase(IMAGE_SCN_MEM_16BIT); + BCase(IMAGE_SCN_MEM_LOCKED); + BCase(IMAGE_SCN_MEM_PRELOAD); + BCase(IMAGE_SCN_LNK_NRELOC_OVFL); + BCase(IMAGE_SCN_MEM_DISCARDABLE); + BCase(IMAGE_SCN_MEM_NOT_CACHED); + BCase(IMAGE_SCN_MEM_NOT_PAGED); + BCase(IMAGE_SCN_MEM_SHARED); + BCase(IMAGE_SCN_MEM_EXECUTE); + BCase(IMAGE_SCN_MEM_READ); + BCase(IMAGE_SCN_MEM_WRITE); + } +}; + +template <> +struct ScalarBitSetTraits<COFF::Characteristics> { + static void bitset(IO &IO, COFF::Characteristics &Value) { + BCase(IMAGE_FILE_RELOCS_STRIPPED); + BCase(IMAGE_FILE_EXECUTABLE_IMAGE); + BCase(IMAGE_FILE_LINE_NUMS_STRIPPED); + BCase(IMAGE_FILE_LOCAL_SYMS_STRIPPED); + BCase(IMAGE_FILE_AGGRESSIVE_WS_TRIM); + BCase(IMAGE_FILE_LARGE_ADDRESS_AWARE); + BCase(IMAGE_FILE_BYTES_REVERSED_LO); + BCase(IMAGE_FILE_32BIT_MACHINE); + BCase(IMAGE_FILE_DEBUG_STRIPPED); + BCase(IMAGE_FILE_REMOVABLE_RUN_FROM_SWAP); + BCase(IMAGE_FILE_NET_RUN_FROM_SWAP); + BCase(IMAGE_FILE_SYSTEM); + BCase(IMAGE_FILE_DLL); + BCase(IMAGE_FILE_UP_SYSTEM_ONLY); + BCase(IMAGE_FILE_BYTES_REVERSED_HI); + } +}; +#undef BCase + +#define ECase(X) IO.enumCase(Value, #X, COFF::X); + +template <> +struct ScalarEnumerationTraits<COFF::SymbolComplexType> { + static void enumeration(IO &IO, COFF::SymbolComplexType &Value) { + ECase(IMAGE_SYM_DTYPE_NULL); + ECase(IMAGE_SYM_DTYPE_POINTER); + ECase(IMAGE_SYM_DTYPE_FUNCTION); + ECase(IMAGE_SYM_DTYPE_ARRAY); + } +}; + +template <> +struct ScalarEnumerationTraits<COFF::SymbolStorageClass> { + static void enumeration(IO &IO, COFF::SymbolStorageClass &Value) { + ECase(IMAGE_SYM_CLASS_END_OF_FUNCTION); + ECase(IMAGE_SYM_CLASS_NULL); + ECase(IMAGE_SYM_CLASS_AUTOMATIC); + ECase(IMAGE_SYM_CLASS_EXTERNAL); + ECase(IMAGE_SYM_CLASS_STATIC); + ECase(IMAGE_SYM_CLASS_REGISTER); + ECase(IMAGE_SYM_CLASS_EXTERNAL_DEF); + ECase(IMAGE_SYM_CLASS_LABEL); + ECase(IMAGE_SYM_CLASS_UNDEFINED_LABEL); + ECase(IMAGE_SYM_CLASS_MEMBER_OF_STRUCT); + ECase(IMAGE_SYM_CLASS_ARGUMENT); + ECase(IMAGE_SYM_CLASS_STRUCT_TAG); + ECase(IMAGE_SYM_CLASS_MEMBER_OF_UNION); + ECase(IMAGE_SYM_CLASS_UNION_TAG); + ECase(IMAGE_SYM_CLASS_TYPE_DEFINITION); + ECase(IMAGE_SYM_CLASS_UNDEFINED_STATIC); + ECase(IMAGE_SYM_CLASS_ENUM_TAG); + ECase(IMAGE_SYM_CLASS_MEMBER_OF_ENUM); + ECase(IMAGE_SYM_CLASS_REGISTER_PARAM); + ECase(IMAGE_SYM_CLASS_BIT_FIELD); + ECase(IMAGE_SYM_CLASS_BLOCK); + ECase(IMAGE_SYM_CLASS_FUNCTION); + ECase(IMAGE_SYM_CLASS_END_OF_STRUCT); + ECase(IMAGE_SYM_CLASS_FILE); + ECase(IMAGE_SYM_CLASS_SECTION); + ECase(IMAGE_SYM_CLASS_WEAK_EXTERNAL); + ECase(IMAGE_SYM_CLASS_CLR_TOKEN); + } +}; + +template <> +struct ScalarEnumerationTraits<COFF::SymbolBaseType> { + static void enumeration(IO &IO, COFF::SymbolBaseType &Value) { + ECase(IMAGE_SYM_TYPE_NULL); + ECase(IMAGE_SYM_TYPE_VOID); + ECase(IMAGE_SYM_TYPE_CHAR); + ECase(IMAGE_SYM_TYPE_SHORT); + ECase(IMAGE_SYM_TYPE_INT); + ECase(IMAGE_SYM_TYPE_LONG); + ECase(IMAGE_SYM_TYPE_FLOAT); + ECase(IMAGE_SYM_TYPE_DOUBLE); + ECase(IMAGE_SYM_TYPE_STRUCT); + ECase(IMAGE_SYM_TYPE_UNION); + ECase(IMAGE_SYM_TYPE_ENUM); + ECase(IMAGE_SYM_TYPE_MOE); + ECase(IMAGE_SYM_TYPE_BYTE); + ECase(IMAGE_SYM_TYPE_WORD); + ECase(IMAGE_SYM_TYPE_UINT); + ECase(IMAGE_SYM_TYPE_DWORD); + } +}; + +template <> +struct ScalarEnumerationTraits<COFF::MachineTypes> { + static void enumeration(IO &IO, COFF::MachineTypes &Value) { + ECase(IMAGE_FILE_MACHINE_UNKNOWN); + ECase(IMAGE_FILE_MACHINE_AM33); + ECase(IMAGE_FILE_MACHINE_AMD64); + ECase(IMAGE_FILE_MACHINE_ARM); + ECase(IMAGE_FILE_MACHINE_ARMV7); + ECase(IMAGE_FILE_MACHINE_EBC); + ECase(IMAGE_FILE_MACHINE_I386); + ECase(IMAGE_FILE_MACHINE_IA64); + ECase(IMAGE_FILE_MACHINE_M32R); + ECase(IMAGE_FILE_MACHINE_MIPS16); + ECase(IMAGE_FILE_MACHINE_MIPSFPU); + ECase(IMAGE_FILE_MACHINE_MIPSFPU16); + ECase(IMAGE_FILE_MACHINE_POWERPC); + ECase(IMAGE_FILE_MACHINE_POWERPCFP); + ECase(IMAGE_FILE_MACHINE_R4000); + ECase(IMAGE_FILE_MACHINE_SH3); + ECase(IMAGE_FILE_MACHINE_SH3DSP); + ECase(IMAGE_FILE_MACHINE_SH4); + ECase(IMAGE_FILE_MACHINE_SH5); + ECase(IMAGE_FILE_MACHINE_THUMB); + ECase(IMAGE_FILE_MACHINE_WCEMIPSV2); + } +}; + +template <> +struct ScalarEnumerationTraits<COFF::RelocationTypeX86> { + static void enumeration(IO &IO, COFF::RelocationTypeX86 &Value) { + ECase(IMAGE_REL_I386_ABSOLUTE); + ECase(IMAGE_REL_I386_DIR16); + ECase(IMAGE_REL_I386_REL16); + ECase(IMAGE_REL_I386_DIR32); + ECase(IMAGE_REL_I386_DIR32NB); + ECase(IMAGE_REL_I386_SEG12); + ECase(IMAGE_REL_I386_SECTION); + ECase(IMAGE_REL_I386_SECREL); + ECase(IMAGE_REL_I386_TOKEN); + ECase(IMAGE_REL_I386_SECREL7); + ECase(IMAGE_REL_I386_REL32); + ECase(IMAGE_REL_AMD64_ABSOLUTE); + ECase(IMAGE_REL_AMD64_ADDR64); + ECase(IMAGE_REL_AMD64_ADDR32); + ECase(IMAGE_REL_AMD64_ADDR32NB); + ECase(IMAGE_REL_AMD64_REL32); + ECase(IMAGE_REL_AMD64_REL32_1); + ECase(IMAGE_REL_AMD64_REL32_2); + ECase(IMAGE_REL_AMD64_REL32_3); + ECase(IMAGE_REL_AMD64_REL32_4); + ECase(IMAGE_REL_AMD64_REL32_5); + ECase(IMAGE_REL_AMD64_SECTION); + ECase(IMAGE_REL_AMD64_SECREL); + ECase(IMAGE_REL_AMD64_SECREL7); + ECase(IMAGE_REL_AMD64_TOKEN); + ECase(IMAGE_REL_AMD64_SREL32); + ECase(IMAGE_REL_AMD64_PAIR); + ECase(IMAGE_REL_AMD64_SSPAN32); + } +}; + +#undef ECase + +template <> +struct MappingTraits<COFFYAML::Symbol> { + struct NStorageClass { + NStorageClass(IO&) : StorageClass(COFF::SymbolStorageClass(0)) { + } + NStorageClass(IO&, uint8_t S) : StorageClass(COFF::SymbolStorageClass(S)) { + } + uint8_t denormalize(IO &) { + return StorageClass; + } + + COFF::SymbolStorageClass StorageClass; + }; + + static void mapping(IO &IO, COFFYAML::Symbol &S) { + MappingNormalization<NStorageClass, uint8_t> NS(IO, S.Header.StorageClass); + + IO.mapRequired("SimpleType", S.SimpleType); + IO.mapOptional("NumberOfAuxSymbols", S.Header.NumberOfAuxSymbols); + IO.mapRequired("Name", S.Name); + IO.mapRequired("StorageClass", NS->StorageClass); + IO.mapOptional("AuxiliaryData", S.AuxiliaryData); + IO.mapRequired("ComplexType", S.ComplexType); + IO.mapRequired("Value", S.Header.Value); + IO.mapRequired("SectionNumber", S.Header.SectionNumber); + } +}; + +template <> +struct MappingTraits<COFF::header> { + struct NMachine { + NMachine(IO&) : Machine(COFF::MachineTypes(0)) { + } + NMachine(IO&, uint16_t M) : Machine(COFF::MachineTypes(M)) { + } + uint16_t denormalize(IO &) { + return Machine; + } + COFF::MachineTypes Machine; + }; + + struct NCharacteristics { + NCharacteristics(IO&) : Characteristics(COFF::Characteristics(0)) { + } + NCharacteristics(IO&, uint16_t C) : + Characteristics(COFF::Characteristics(C)) { + } + uint16_t denormalize(IO &) { + return Characteristics; + } + + COFF::Characteristics Characteristics; + }; + + static void mapping(IO &IO, COFF::header &H) { + MappingNormalization<NMachine, uint16_t> NM(IO, H.Machine); + MappingNormalization<NCharacteristics, uint16_t> NC(IO, H.Characteristics); + + IO.mapRequired("Machine", NM->Machine); + IO.mapOptional("Characteristics", NC->Characteristics); + } +}; + +template <> +struct MappingTraits<COFF::relocation> { + struct NType { + NType(IO &) : Type(COFF::RelocationTypeX86(0)) { + } + NType(IO &, uint16_t T) : Type(COFF::RelocationTypeX86(T)) { + } + uint16_t denormalize(IO &) { + return Type; + } + COFF::RelocationTypeX86 Type; + }; + + static void mapping(IO &IO, COFF::relocation &Rel) { + MappingNormalization<NType, uint16_t> NT(IO, Rel.Type); + + IO.mapRequired("Type", NT->Type); + IO.mapRequired("VirtualAddress", Rel.VirtualAddress); + IO.mapRequired("SymbolTableIndex", Rel.SymbolTableIndex); + } +}; + +template <> +struct MappingTraits<COFFYAML::Section> { + struct NCharacteristics { + NCharacteristics(IO &) : Characteristics(COFF::SectionCharacteristics(0)) { + } + NCharacteristics(IO &, uint32_t C) : + Characteristics(COFF::SectionCharacteristics(C)) { + } + uint32_t denormalize(IO &) { + return Characteristics; + } + COFF::SectionCharacteristics Characteristics; + }; + + static void mapping(IO &IO, COFFYAML::Section &Sec) { + MappingNormalization<NCharacteristics, uint32_t> NC(IO, + Sec.Header.Characteristics); + IO.mapOptional("Relocations", Sec.Relocations); + IO.mapRequired("SectionData", Sec.SectionData); + IO.mapRequired("Characteristics", NC->Characteristics); + IO.mapRequired("Name", Sec.Name); + IO.mapOptional("Alignment", Sec.Alignment); + } +}; + +template <> +struct MappingTraits<COFFYAML::Object> { + static void mapping(IO &IO, COFFYAML::Object &Obj) { + IO.mapRequired("sections", Obj.Sections); + IO.mapRequired("header", Obj.Header); + IO.mapRequired("symbols", Obj.Symbols); + } +}; +} // end namespace yaml +} // end namespace llvm + +int main(int argc, char **argv) { + cl::ParseCommandLineOptions(argc, argv); + sys::PrintStackTraceOnErrorSignal(); + PrettyStackTraceProgram X(argc, argv); + llvm_shutdown_obj Y; // Call llvm_shutdown() on exit. + + OwningPtr<MemoryBuffer> Buf; + if (MemoryBuffer::getFileOrSTDIN(Input, Buf)) + return 1; + + yaml::Input YIn(Buf->getBuffer()); + COFFYAML::Object Doc; + YIn >> Doc; + if (YIn.error()) { + errs() << "yaml2obj: Failed to parse YAML file!\n"; + return 1; + } + + COFFParser CP(Doc); + if (!CP.parse()) { + errs() << "yaml2obj: Failed to parse YAML file!\n"; + return 1; + } + + if (!layoutCOFF(CP)) { + errs() << "yaml2obj: Failed to layout COFF file!\n"; + return 1; + } + if (!writeCOFF(CP, outs())) { + errs() << "yaml2obj: Failed to write COFF file!\n"; + return 1; + } +} |