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b88ea9e876
Since I stopped writing empty export tries it causes LinkEdit to potentially be completely empty which results in invalid yaml being generated. To prevent this we skip linkedit data if it is empty. llvm-svn: 278985
299 lines
8.6 KiB
C++
299 lines
8.6 KiB
C++
//===- MachOYAML.h - Mach-O YAMLIO 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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/// \file
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/// \brief This file declares classes for handling the YAML representation
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/// of Mach-O.
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///
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_OBJECTYAML_MACHOYAML_H
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#define LLVM_OBJECTYAML_MACHOYAML_H
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#include "llvm/ObjectYAML/YAML.h"
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#include "llvm/Support/MachO.h"
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namespace llvm {
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namespace MachOYAML {
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struct Section {
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char sectname[16];
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char segname[16];
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llvm::yaml::Hex64 addr;
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uint64_t size;
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llvm::yaml::Hex32 offset;
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uint32_t align;
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llvm::yaml::Hex32 reloff;
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uint32_t nreloc;
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llvm::yaml::Hex32 flags;
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llvm::yaml::Hex32 reserved1;
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llvm::yaml::Hex32 reserved2;
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llvm::yaml::Hex32 reserved3;
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};
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struct FileHeader {
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llvm::yaml::Hex32 magic;
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llvm::yaml::Hex32 cputype;
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llvm::yaml::Hex32 cpusubtype;
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llvm::yaml::Hex32 filetype;
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uint32_t ncmds;
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uint32_t sizeofcmds;
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llvm::yaml::Hex32 flags;
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llvm::yaml::Hex32 reserved;
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};
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struct LoadCommand {
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virtual ~LoadCommand();
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llvm::MachO::macho_load_command Data;
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std::vector<Section> Sections;
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std::vector<llvm::yaml::Hex8> PayloadBytes;
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std::string PayloadString;
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uint64_t ZeroPadBytes;
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};
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struct NListEntry {
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uint32_t n_strx;
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llvm::yaml::Hex8 n_type;
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uint8_t n_sect;
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uint16_t n_desc;
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uint64_t n_value;
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};
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struct RebaseOpcode {
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MachO::RebaseOpcode Opcode;
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uint8_t Imm;
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std::vector<yaml::Hex64> ExtraData;
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};
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struct BindOpcode {
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MachO::BindOpcode Opcode;
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uint8_t Imm;
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std::vector<yaml::Hex64> ULEBExtraData;
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std::vector<int64_t> SLEBExtraData;
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StringRef Symbol;
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};
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struct ExportEntry {
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ExportEntry()
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: TerminalSize(0), NodeOffset(0), Name(), Flags(0), Address(0), Other(0),
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ImportName(), Children() {}
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uint64_t TerminalSize;
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uint64_t NodeOffset;
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std::string Name;
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llvm::yaml::Hex64 Flags;
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llvm::yaml::Hex64 Address;
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llvm::yaml::Hex64 Other;
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std::string ImportName;
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std::vector<MachOYAML::ExportEntry> Children;
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};
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struct LinkEditData {
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std::vector<MachOYAML::RebaseOpcode> RebaseOpcodes;
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std::vector<MachOYAML::BindOpcode> BindOpcodes;
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std::vector<MachOYAML::BindOpcode> WeakBindOpcodes;
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std::vector<MachOYAML::BindOpcode> LazyBindOpcodes;
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MachOYAML::ExportEntry ExportTrie;
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std::vector<NListEntry> NameList;
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std::vector<StringRef> StringTable;
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bool isEmpty() const;
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};
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struct Object {
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FileHeader Header;
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std::vector<LoadCommand> LoadCommands;
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std::vector<Section> Sections;
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LinkEditData LinkEdit;
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};
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struct FatHeader {
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llvm::yaml::Hex32 magic;
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uint32_t nfat_arch;
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};
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struct FatArch {
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llvm::yaml::Hex32 cputype;
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llvm::yaml::Hex32 cpusubtype;
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llvm::yaml::Hex64 offset;
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uint64_t size;
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uint32_t align;
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llvm::yaml::Hex32 reserved;
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};
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struct UniversalBinary {
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FatHeader Header;
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std::vector<FatArch> FatArchs;
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std::vector<Object> Slices;
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};
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} // namespace llvm::MachOYAML
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} // namespace llvm
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LLVM_YAML_IS_SEQUENCE_VECTOR(llvm::MachOYAML::LoadCommand)
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LLVM_YAML_IS_SEQUENCE_VECTOR(llvm::MachOYAML::Section)
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LLVM_YAML_IS_SEQUENCE_VECTOR(llvm::yaml::Hex8)
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LLVM_YAML_IS_SEQUENCE_VECTOR(llvm::yaml::Hex64)
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LLVM_YAML_IS_SEQUENCE_VECTOR(int64_t)
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LLVM_YAML_IS_SEQUENCE_VECTOR(llvm::MachOYAML::RebaseOpcode)
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LLVM_YAML_IS_SEQUENCE_VECTOR(llvm::MachOYAML::BindOpcode)
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LLVM_YAML_IS_SEQUENCE_VECTOR(llvm::MachOYAML::ExportEntry)
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LLVM_YAML_IS_SEQUENCE_VECTOR(llvm::MachOYAML::NListEntry)
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LLVM_YAML_IS_SEQUENCE_VECTOR(llvm::StringRef)
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LLVM_YAML_IS_SEQUENCE_VECTOR(llvm::MachOYAML::Object)
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LLVM_YAML_IS_SEQUENCE_VECTOR(llvm::MachOYAML::FatArch)
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namespace llvm {
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namespace yaml {
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template <> struct MappingTraits<MachOYAML::FileHeader> {
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static void mapping(IO &IO, MachOYAML::FileHeader &FileHeader);
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};
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template <> struct MappingTraits<MachOYAML::Object> {
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static void mapping(IO &IO, MachOYAML::Object &Object);
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};
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template <> struct MappingTraits<MachOYAML::FatHeader> {
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static void mapping(IO &IO, MachOYAML::FatHeader &FatHeader);
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};
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template <> struct MappingTraits<MachOYAML::FatArch> {
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static void mapping(IO &IO, MachOYAML::FatArch &FatArch);
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};
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template <> struct MappingTraits<MachOYAML::UniversalBinary> {
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static void mapping(IO &IO, MachOYAML::UniversalBinary &UniversalBinary);
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};
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template <> struct MappingTraits<MachOYAML::LoadCommand> {
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static void mapping(IO &IO, MachOYAML::LoadCommand &LoadCommand);
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};
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template <> struct MappingTraits<MachOYAML::LinkEditData> {
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static void mapping(IO &IO, MachOYAML::LinkEditData &LinkEditData);
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};
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template <> struct MappingTraits<MachOYAML::RebaseOpcode> {
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static void mapping(IO &IO, MachOYAML::RebaseOpcode &RebaseOpcode);
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};
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template <> struct MappingTraits<MachOYAML::BindOpcode> {
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static void mapping(IO &IO, MachOYAML::BindOpcode &BindOpcode);
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};
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template <> struct MappingTraits<MachOYAML::ExportEntry> {
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static void mapping(IO &IO, MachOYAML::ExportEntry &ExportEntry);
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};
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template <> struct MappingTraits<MachOYAML::Section> {
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static void mapping(IO &IO, MachOYAML::Section &Section);
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};
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template <> struct MappingTraits<MachOYAML::NListEntry> {
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static void mapping(IO &IO, MachOYAML::NListEntry &NListEntry);
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};
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#define HANDLE_LOAD_COMMAND(LCName, LCValue, LCStruct) \
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io.enumCase(value, #LCName, MachO::LCName);
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template <> struct ScalarEnumerationTraits<MachO::LoadCommandType> {
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static void enumeration(IO &io, MachO::LoadCommandType &value) {
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#include "llvm/Support/MachO.def"
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io.enumFallback<Hex32>(value);
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}
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};
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#define ENUM_CASE(Enum) io.enumCase(value, #Enum, MachO::Enum);
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template <> struct ScalarEnumerationTraits<MachO::RebaseOpcode> {
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static void enumeration(IO &io, MachO::RebaseOpcode &value) {
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ENUM_CASE(REBASE_OPCODE_DONE)
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ENUM_CASE(REBASE_OPCODE_SET_TYPE_IMM)
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ENUM_CASE(REBASE_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB)
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ENUM_CASE(REBASE_OPCODE_ADD_ADDR_ULEB)
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ENUM_CASE(REBASE_OPCODE_ADD_ADDR_IMM_SCALED)
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ENUM_CASE(REBASE_OPCODE_DO_REBASE_IMM_TIMES)
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ENUM_CASE(REBASE_OPCODE_DO_REBASE_ULEB_TIMES)
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ENUM_CASE(REBASE_OPCODE_DO_REBASE_ADD_ADDR_ULEB)
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ENUM_CASE(REBASE_OPCODE_DO_REBASE_ULEB_TIMES_SKIPPING_ULEB)
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io.enumFallback<Hex8>(value);
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}
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};
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template <> struct ScalarEnumerationTraits<MachO::BindOpcode> {
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static void enumeration(IO &io, MachO::BindOpcode &value) {
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ENUM_CASE(BIND_OPCODE_DONE)
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ENUM_CASE(BIND_OPCODE_SET_DYLIB_ORDINAL_IMM)
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ENUM_CASE(BIND_OPCODE_SET_DYLIB_ORDINAL_ULEB)
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ENUM_CASE(BIND_OPCODE_SET_DYLIB_SPECIAL_IMM)
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ENUM_CASE(BIND_OPCODE_SET_SYMBOL_TRAILING_FLAGS_IMM)
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ENUM_CASE(BIND_OPCODE_SET_TYPE_IMM)
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ENUM_CASE(BIND_OPCODE_SET_ADDEND_SLEB)
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ENUM_CASE(BIND_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB)
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ENUM_CASE(BIND_OPCODE_ADD_ADDR_ULEB)
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ENUM_CASE(BIND_OPCODE_DO_BIND)
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ENUM_CASE(BIND_OPCODE_DO_BIND_ADD_ADDR_ULEB)
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ENUM_CASE(BIND_OPCODE_DO_BIND_ADD_ADDR_IMM_SCALED)
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ENUM_CASE(BIND_OPCODE_DO_BIND_ULEB_TIMES_SKIPPING_ULEB)
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io.enumFallback<Hex8>(value);
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}
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};
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// This trait is used for 16-byte chars in Mach structures used for strings
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typedef char char_16[16];
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template <> struct ScalarTraits<char_16> {
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static void output(const char_16 &Val, void *, llvm::raw_ostream &Out);
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static StringRef input(StringRef Scalar, void *, char_16 &Val);
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static bool mustQuote(StringRef S);
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};
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// This trait is used for UUIDs. It reads and writes them matching otool's
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// formatting style.
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typedef uint8_t uuid_t[16];
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template <> struct ScalarTraits<uuid_t> {
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static void output(const uuid_t &Val, void *, llvm::raw_ostream &Out);
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static StringRef input(StringRef Scalar, void *, uuid_t &Val);
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static bool mustQuote(StringRef S);
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};
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// Load Command struct mapping traits
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#define LOAD_COMMAND_STRUCT(LCStruct) \
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template <> struct MappingTraits<MachO::LCStruct> { \
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static void mapping(IO &IO, MachO::LCStruct &LoadCommand); \
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};
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#include "llvm/Support/MachO.def"
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// Extra structures used by load commands
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template <> struct MappingTraits<MachO::dylib> {
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static void mapping(IO &IO, MachO::dylib &LoadCommand);
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};
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template <> struct MappingTraits<MachO::fvmlib> {
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static void mapping(IO &IO, MachO::fvmlib &LoadCommand);
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};
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template <> struct MappingTraits<MachO::section> {
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static void mapping(IO &IO, MachO::section &LoadCommand);
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};
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template <> struct MappingTraits<MachO::section_64> {
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static void mapping(IO &IO, MachO::section_64 &LoadCommand);
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};
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} // namespace llvm::yaml
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} // namespace llvm
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#endif
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