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[obj2yaml] [yaml2obj] Support for MachO load command structures
This adds support for all the MachO *_command structures. The load_command payloads still are not represented, but that will come next. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@269782 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Bieneman
parent
87749e8b5d
commit
4a038a7aac
@ -35,19 +35,18 @@ struct FileHeader {
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struct LoadCommand {
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virtual ~LoadCommand();
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MachO::LoadCommandType cmd;
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uint32_t cmdsize;
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llvm::MachO::macho_load_command load_command_data;
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};
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struct Object {
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FileHeader Header;
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std::vector<std::unique_ptr<LoadCommand>> LoadCommands;
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std::vector<LoadCommand> LoadCommands;
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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(std::unique_ptr<llvm::MachOYAML::LoadCommand>)
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LLVM_YAML_IS_SEQUENCE_VECTOR(llvm::MachOYAML::LoadCommand)
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namespace llvm {
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namespace yaml {
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@ -60,12 +59,11 @@ 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<std::unique_ptr<MachOYAML::LoadCommand>> {
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static void mapping(IO &IO,
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std::unique_ptr<MachOYAML::LoadCommand> &LoadCommand);
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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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#define HANDLE_LOAD_COMMAND(LCName, LCValue, LCStruct) \
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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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@ -74,7 +72,52 @@ template <> struct ScalarEnumerationTraits<MachO::LoadCommandType> {
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}
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};
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#undef HANDLE_LOAD_COMMAND
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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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@ -11,9 +11,7 @@
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//
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//,,,----------------------------------------------------------------------,,,//
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#ifndef HANDLE_LOAD_COMMAND
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#define HANDLE_LOAD_COMMAND(LCName, LCValue, LCStruct)
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#endif
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#ifdef HANDLE_LOAD_COMMAND
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HANDLE_LOAD_COMMAND(LC_SEGMENT, 0x00000001u, segment_command)
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HANDLE_LOAD_COMMAND(LC_SYMTAB, 0x00000002u, symtab_command)
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@ -65,3 +63,44 @@ HANDLE_LOAD_COMMAND(LC_LINKER_OPTION, 0x0000002Du, linker_option_command)
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HANDLE_LOAD_COMMAND(LC_LINKER_OPTIMIZATION_HINT, 0x0000002Eu, linkedit_data_command)
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HANDLE_LOAD_COMMAND(LC_VERSION_MIN_TVOS, 0x0000002Fu, version_min_command)
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HANDLE_LOAD_COMMAND(LC_VERSION_MIN_WATCHOS, 0x00000030u, version_min_command)
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#endif
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#ifdef LOAD_COMMAND_STRUCT
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LOAD_COMMAND_STRUCT(dyld_info_command)
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LOAD_COMMAND_STRUCT(dylib_command)
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LOAD_COMMAND_STRUCT(dylinker_command)
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LOAD_COMMAND_STRUCT(dysymtab_command)
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LOAD_COMMAND_STRUCT(encryption_info_command)
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LOAD_COMMAND_STRUCT(encryption_info_command_64)
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LOAD_COMMAND_STRUCT(entry_point_command)
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LOAD_COMMAND_STRUCT(fvmfile_command)
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LOAD_COMMAND_STRUCT(fvmlib_command)
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LOAD_COMMAND_STRUCT(ident_command)
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LOAD_COMMAND_STRUCT(linkedit_data_command)
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LOAD_COMMAND_STRUCT(linker_option_command)
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LOAD_COMMAND_STRUCT(load_command)
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LOAD_COMMAND_STRUCT(prebind_cksum_command)
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LOAD_COMMAND_STRUCT(prebound_dylib_command)
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LOAD_COMMAND_STRUCT(routines_command)
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LOAD_COMMAND_STRUCT(routines_command_64)
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LOAD_COMMAND_STRUCT(rpath_command)
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LOAD_COMMAND_STRUCT(segment_command)
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LOAD_COMMAND_STRUCT(segment_command_64)
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LOAD_COMMAND_STRUCT(source_version_command)
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LOAD_COMMAND_STRUCT(sub_client_command)
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LOAD_COMMAND_STRUCT(sub_framework_command)
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LOAD_COMMAND_STRUCT(sub_library_command)
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LOAD_COMMAND_STRUCT(sub_umbrella_command)
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LOAD_COMMAND_STRUCT(symseg_command)
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LOAD_COMMAND_STRUCT(symtab_command)
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LOAD_COMMAND_STRUCT(thread_command)
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LOAD_COMMAND_STRUCT(twolevel_hints_command)
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LOAD_COMMAND_STRUCT(uuid_command)
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LOAD_COMMAND_STRUCT(version_min_command)
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#endif
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#undef HANDLE_LOAD_COMMAND
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#undef LOAD_COMMAND_STRUCT
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@ -1677,6 +1677,13 @@ namespace llvm {
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const uint32_t x86_EXCEPTION_STATE_COUNT =
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sizeof(x86_exception_state_t) / sizeof(uint32_t);
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// Define a union of all load command structs
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#define LOAD_COMMAND_STRUCT(LCStruct) LCStruct LCStruct;
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union macho_load_command {
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#include "llvm/Support/MachO.def"
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};
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} // end namespace MachO
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} // end namespace llvm
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@ -13,6 +13,9 @@
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#include "llvm/ObjectYAML/MachOYAML.h"
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#include "llvm/Support/Casting.h"
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#include "llvm/Support/Format.h"
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#include <string.h> // For memcpy and memset.
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namespace llvm {
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@ -20,6 +23,52 @@ MachOYAML::LoadCommand::~LoadCommand() {}
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namespace yaml {
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void ScalarTraits<char_16>::output(const char_16 &Val, void *,
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llvm::raw_ostream &Out) {
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Out << Val;
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}
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StringRef ScalarTraits<char_16>::input(StringRef Scalar, void *, char_16 &Val) {
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size_t CopySize = 16 >= Scalar.size() ? 16 : Scalar.size();
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memcpy((void *)Val, Scalar.data(), CopySize);
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if (Scalar.size() < 16) {
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memset((void *)&Val[Scalar.size()], 0, 16 - Scalar.size());
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}
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return StringRef();
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}
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bool ScalarTraits<char_16>::mustQuote(StringRef S) { return needsQuotes(S); }
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void ScalarTraits<uuid_t>::output(const uuid_t &Val, void *,
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llvm::raw_ostream &Out) {
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for (int Idx = 0; Idx < 16; ++Idx) {
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Out << format("%02" PRIX32, Val[Idx]);
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if (Idx == 3 || Idx == 5 || Idx == 7 || Idx == 9)
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Out << "-";
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}
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}
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StringRef ScalarTraits<uuid_t>::input(StringRef Scalar, void *, uuid_t &Val) {
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size_t OutIdx = 0;
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for (size_t Idx = 0; Idx < Scalar.size(); ++Idx) {
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if (Scalar[Idx] == '-' || OutIdx >= 16)
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continue;
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unsigned long long TempInt;
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if (getAsUnsignedInteger(Scalar.slice(Idx, Idx + 2), 16, TempInt))
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return "invalid number";
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if (TempInt > 0xFF)
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return "out of range number";
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Val[OutIdx] = static_cast<uint8_t>(TempInt);
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++Idx; // increment idx an extra time because we're consuming 2 chars
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++OutIdx;
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}
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return StringRef();
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}
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bool ScalarTraits<uuid_t>::mustQuote(StringRef S) { return needsQuotes(S); }
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void MappingTraits<MachOYAML::FileHeader>::mapping(
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IO &IO, MachOYAML::FileHeader &FileHdr) {
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IO.mapRequired("magic", FileHdr.magic);
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@ -46,12 +95,311 @@ void MappingTraits<MachOYAML::Object>::mapping(IO &IO,
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IO.setContext(nullptr);
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}
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void MappingTraits<std::unique_ptr<MachOYAML::LoadCommand>>::mapping(
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IO &IO, std::unique_ptr<MachOYAML::LoadCommand> &LoadCommand) {
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if (!IO.outputting())
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LoadCommand.reset(new MachOYAML::LoadCommand());
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IO.mapRequired("cmd", LoadCommand->cmd);
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IO.mapRequired("cmdsize", LoadCommand->cmdsize);
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void MappingTraits<MachOYAML::LoadCommand>::mapping(
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IO &IO, MachOYAML::LoadCommand &LoadCommand) {
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IO.mapRequired(
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"cmd",
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(MachO::LoadCommandType &)LoadCommand.load_command_data.load_command.cmd);
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IO.mapRequired("cmdsize", LoadCommand.load_command_data.load_command.cmdsize);
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#define HANDLE_LOAD_COMMAND(LCName, LCValue, LCStruct) \
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case MachO::LCName: \
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MappingTraits<MachO::LCStruct>::mapping( \
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IO, LoadCommand.load_command_data.LCStruct); \
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break;
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switch (LoadCommand.load_command_data.load_command.cmd) {
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#include "llvm/Support/MachO.def"
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}
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}
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void MappingTraits<MachO::dyld_info_command>::mapping(
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IO &IO, MachO::dyld_info_command &LoadCommand) {
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IO.mapRequired("rebase_off", LoadCommand.rebase_off);
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IO.mapRequired("rebase_size", LoadCommand.rebase_size);
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IO.mapRequired("bind_off", LoadCommand.bind_size);
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IO.mapRequired("weak_bind_off", LoadCommand.weak_bind_off);
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IO.mapRequired("weak_bind_size", LoadCommand.weak_bind_size);
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IO.mapRequired("lazy_bind_off", LoadCommand.lazy_bind_size);
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IO.mapRequired("export_off", LoadCommand.export_off);
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IO.mapRequired("export_size", LoadCommand.export_size);
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}
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void MappingTraits<MachO::dylib>::mapping(IO &IO, MachO::dylib &DylibStruct) {
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IO.mapRequired("name", DylibStruct.name);
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IO.mapRequired("timestamp", DylibStruct.timestamp);
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IO.mapRequired("current_version", DylibStruct.current_version);
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IO.mapRequired("compatibility_version", DylibStruct.compatibility_version);
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}
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void MappingTraits<MachO::dylib_command>::mapping(
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IO &IO, MachO::dylib_command &LoadCommand) {
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IO.mapRequired("dylib", LoadCommand.dylib);
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}
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void MappingTraits<MachO::dylinker_command>::mapping(
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IO &IO, MachO::dylinker_command &LoadCommand) {
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IO.mapRequired("name", LoadCommand.name);
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}
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void MappingTraits<MachO::dysymtab_command>::mapping(
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IO &IO, MachO::dysymtab_command &LoadCommand) {
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IO.mapRequired("ilocalsym", LoadCommand.ilocalsym);
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IO.mapRequired("nlocalsym", LoadCommand.nlocalsym);
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IO.mapRequired("iextdefsym", LoadCommand.iextdefsym);
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IO.mapRequired("nextdefsym", LoadCommand.nextdefsym);
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IO.mapRequired("iundefsym", LoadCommand.iundefsym);
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IO.mapRequired("nundefsym", LoadCommand.nundefsym);
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IO.mapRequired("tocoff", LoadCommand.tocoff);
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IO.mapRequired("ntoc", LoadCommand.ntoc);
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IO.mapRequired("modtaboff", LoadCommand.modtaboff);
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IO.mapRequired("nmodtab", LoadCommand.nmodtab);
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IO.mapRequired("extrefsymoff", LoadCommand.extrefsymoff);
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IO.mapRequired("nextrefsyms", LoadCommand.nextrefsyms);
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IO.mapRequired("indirectsymoff", LoadCommand.indirectsymoff);
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IO.mapRequired("nindirectsyms", LoadCommand.nindirectsyms);
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IO.mapRequired("extreloff", LoadCommand.extreloff);
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IO.mapRequired("nextrel", LoadCommand.nextrel);
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IO.mapRequired("locreloff", LoadCommand.locreloff);
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IO.mapRequired("nlocrel", LoadCommand.nlocrel);
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}
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void MappingTraits<MachO::encryption_info_command>::mapping(
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IO &IO, MachO::encryption_info_command &LoadCommand) {
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IO.mapRequired("cryptoff", LoadCommand.cryptoff);
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IO.mapRequired("cryptsize", LoadCommand.cryptsize);
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IO.mapRequired("cryptid", LoadCommand.cryptid);
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}
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void MappingTraits<MachO::encryption_info_command_64>::mapping(
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IO &IO, MachO::encryption_info_command_64 &LoadCommand) {
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IO.mapRequired("cryptoff", LoadCommand.cryptoff);
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IO.mapRequired("cryptsize", LoadCommand.cryptsize);
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IO.mapRequired("cryptid", LoadCommand.cryptid);
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IO.mapRequired("pad", LoadCommand.pad);
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}
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void MappingTraits<MachO::entry_point_command>::mapping(
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IO &IO, MachO::entry_point_command &LoadCommand) {
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IO.mapRequired("entryoff", LoadCommand.entryoff);
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IO.mapRequired("stacksize", LoadCommand.stacksize);
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}
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void MappingTraits<MachO::fvmfile_command>::mapping(
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IO &IO, MachO::fvmfile_command &LoadCommand) {
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IO.mapRequired("name", LoadCommand.name);
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IO.mapRequired("header_addr", LoadCommand.header_addr);
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}
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void MappingTraits<MachO::fvmlib>::mapping(IO &IO, MachO::fvmlib &FVMLib) {
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IO.mapRequired("name", FVMLib.name);
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IO.mapRequired("minor_version", FVMLib.minor_version);
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IO.mapRequired("header_addr", FVMLib.header_addr);
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}
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void MappingTraits<MachO::fvmlib_command>::mapping(
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IO &IO, MachO::fvmlib_command &LoadCommand) {
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IO.mapRequired("fvmlib", LoadCommand.fvmlib);
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}
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void MappingTraits<MachO::ident_command>::mapping(
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IO &IO, MachO::ident_command &LoadCommand) {}
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void MappingTraits<MachO::linkedit_data_command>::mapping(
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IO &IO, MachO::linkedit_data_command &LoadCommand) {
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IO.mapRequired("dataoff", LoadCommand.dataoff);
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IO.mapRequired("datasize", LoadCommand.datasize);
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}
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void MappingTraits<MachO::linker_option_command>::mapping(
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IO &IO, MachO::linker_option_command &LoadCommand) {
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IO.mapRequired("count", LoadCommand.count);
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}
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void MappingTraits<MachO::prebind_cksum_command>::mapping(
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IO &IO, MachO::prebind_cksum_command &LoadCommand) {
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IO.mapRequired("cksum", LoadCommand.cksum);
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}
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void MappingTraits<MachO::load_command>::mapping(
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IO &IO, MachO::load_command &LoadCommand) {}
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void MappingTraits<MachO::prebound_dylib_command>::mapping(
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IO &IO, MachO::prebound_dylib_command &LoadCommand) {
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IO.mapRequired("name", LoadCommand.name);
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IO.mapRequired("nmodules", LoadCommand.nmodules);
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IO.mapRequired("linked_modules", LoadCommand.linked_modules);
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}
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void MappingTraits<MachO::routines_command>::mapping(
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IO &IO, MachO::routines_command &LoadCommand) {
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IO.mapRequired("init_address", LoadCommand.init_address);
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IO.mapRequired("init_module", LoadCommand.init_module);
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IO.mapRequired("reserved1", LoadCommand.reserved1);
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IO.mapRequired("reserved2", LoadCommand.reserved2);
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IO.mapRequired("reserved3", LoadCommand.reserved3);
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IO.mapRequired("reserved4", LoadCommand.reserved4);
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IO.mapRequired("reserved5", LoadCommand.reserved5);
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IO.mapRequired("reserved6", LoadCommand.reserved6);
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}
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void MappingTraits<MachO::routines_command_64>::mapping(
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IO &IO, MachO::routines_command_64 &LoadCommand) {
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IO.mapRequired("init_address", LoadCommand.init_address);
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IO.mapRequired("init_module", LoadCommand.init_module);
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IO.mapRequired("reserved1", LoadCommand.reserved1);
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IO.mapRequired("reserved2", LoadCommand.reserved2);
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IO.mapRequired("reserved3", LoadCommand.reserved3);
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IO.mapRequired("reserved4", LoadCommand.reserved4);
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IO.mapRequired("reserved5", LoadCommand.reserved5);
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IO.mapRequired("reserved6", LoadCommand.reserved6);
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}
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void MappingTraits<MachO::rpath_command>::mapping(
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IO &IO, MachO::rpath_command &LoadCommand) {
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IO.mapRequired("path", LoadCommand.path);
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}
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void MappingTraits<MachO::section>::mapping(IO &IO, MachO::section &Section) {
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IO.mapRequired("sectname", Section.sectname);
|
||||
IO.mapRequired("segname", Section.segname);
|
||||
IO.mapRequired("addr", Section.addr);
|
||||
IO.mapRequired("size", Section.size);
|
||||
IO.mapRequired("offset", Section.offset);
|
||||
IO.mapRequired("align", Section.align);
|
||||
IO.mapRequired("reloff", Section.reloff);
|
||||
IO.mapRequired("nreloc", Section.nreloc);
|
||||
IO.mapRequired("flags", Section.flags);
|
||||
IO.mapRequired("reserved1", Section.reserved1);
|
||||
IO.mapRequired("reserved2", Section.reserved2);
|
||||
}
|
||||
|
||||
void MappingTraits<MachO::section_64>::mapping(IO &IO,
|
||||
MachO::section_64 &Section) {
|
||||
IO.mapRequired("sectname", Section.sectname);
|
||||
IO.mapRequired("segname", Section.segname);
|
||||
IO.mapRequired("addr", Section.addr);
|
||||
IO.mapRequired("size", Section.size);
|
||||
IO.mapRequired("offset", Section.offset);
|
||||
IO.mapRequired("align", Section.align);
|
||||
IO.mapRequired("reloff", Section.reloff);
|
||||
IO.mapRequired("nreloc", Section.nreloc);
|
||||
IO.mapRequired("flags", Section.flags);
|
||||
IO.mapRequired("reserved1", Section.reserved1);
|
||||
IO.mapRequired("reserved2", Section.reserved2);
|
||||
IO.mapRequired("reserved3", Section.reserved3);
|
||||
}
|
||||
|
||||
void MappingTraits<MachO::segment_command>::mapping(
|
||||
IO &IO, MachO::segment_command &LoadCommand) {
|
||||
|
||||
IO.mapRequired("segname", LoadCommand.segname);
|
||||
IO.mapRequired("vmaddr", LoadCommand.vmaddr);
|
||||
IO.mapRequired("vmsize", LoadCommand.vmsize);
|
||||
IO.mapRequired("fileoff", LoadCommand.fileoff);
|
||||
IO.mapRequired("filesize", LoadCommand.filesize);
|
||||
IO.mapRequired("maxprot", LoadCommand.maxprot);
|
||||
IO.mapRequired("initprot", LoadCommand.initprot);
|
||||
IO.mapRequired("nsects", LoadCommand.nsects);
|
||||
IO.mapRequired("flags", LoadCommand.flags);
|
||||
}
|
||||
|
||||
void MappingTraits<MachO::segment_command_64>::mapping(
|
||||
IO &IO, MachO::segment_command_64 &LoadCommand) {
|
||||
|
||||
IO.mapRequired("segname", LoadCommand.segname);
|
||||
IO.mapRequired("vmaddr", LoadCommand.vmaddr);
|
||||
IO.mapRequired("vmsize", LoadCommand.vmsize);
|
||||
IO.mapRequired("fileoff", LoadCommand.fileoff);
|
||||
IO.mapRequired("filesize", LoadCommand.filesize);
|
||||
IO.mapRequired("maxprot", LoadCommand.maxprot);
|
||||
IO.mapRequired("initprot", LoadCommand.initprot);
|
||||
IO.mapRequired("nsects", LoadCommand.nsects);
|
||||
IO.mapRequired("flags", LoadCommand.flags);
|
||||
}
|
||||
|
||||
void MappingTraits<MachO::source_version_command>::mapping(
|
||||
IO &IO, MachO::source_version_command &LoadCommand) {
|
||||
|
||||
IO.mapRequired("version", LoadCommand.version);
|
||||
}
|
||||
|
||||
void MappingTraits<MachO::sub_client_command>::mapping(
|
||||
IO &IO, MachO::sub_client_command &LoadCommand) {
|
||||
|
||||
IO.mapRequired("client", LoadCommand.client);
|
||||
}
|
||||
|
||||
void MappingTraits<MachO::sub_framework_command>::mapping(
|
||||
IO &IO, MachO::sub_framework_command &LoadCommand) {
|
||||
|
||||
IO.mapRequired("umbrella", LoadCommand.umbrella);
|
||||
}
|
||||
|
||||
void MappingTraits<MachO::sub_library_command>::mapping(
|
||||
IO &IO, MachO::sub_library_command &LoadCommand) {
|
||||
|
||||
IO.mapRequired("sub_library", LoadCommand.sub_library);
|
||||
}
|
||||
|
||||
void MappingTraits<MachO::sub_umbrella_command>::mapping(
|
||||
IO &IO, MachO::sub_umbrella_command &LoadCommand) {
|
||||
|
||||
IO.mapRequired("sub_umbrella", LoadCommand.sub_umbrella);
|
||||
}
|
||||
|
||||
void MappingTraits<MachO::symseg_command>::mapping(
|
||||
IO &IO, MachO::symseg_command &LoadCommand) {
|
||||
|
||||
IO.mapRequired("offset", LoadCommand.offset);
|
||||
IO.mapRequired("size", LoadCommand.size);
|
||||
}
|
||||
|
||||
void MappingTraits<MachO::symtab_command>::mapping(
|
||||
IO &IO, MachO::symtab_command &LoadCommand) {
|
||||
|
||||
IO.mapRequired("symoff", LoadCommand.symoff);
|
||||
IO.mapRequired("nsyms", LoadCommand.nsyms);
|
||||
IO.mapRequired("stroff", LoadCommand.stroff);
|
||||
IO.mapRequired("strsize", LoadCommand.strsize);
|
||||
}
|
||||
|
||||
void MappingTraits<MachO::thread_command>::mapping(
|
||||
IO &IO, MachO::thread_command &LoadCommand) {}
|
||||
|
||||
void MappingTraits<MachO::twolevel_hints_command>::mapping(
|
||||
IO &IO, MachO::twolevel_hints_command &LoadCommand) {
|
||||
|
||||
IO.mapRequired("offset", LoadCommand.offset);
|
||||
IO.mapRequired("nhints", LoadCommand.nhints);
|
||||
}
|
||||
|
||||
void MappingTraits<MachO::uuid_command>::mapping(
|
||||
IO &IO, MachO::uuid_command &LoadCommand) {
|
||||
|
||||
IO.mapRequired("cmdsize", LoadCommand.cmdsize);
|
||||
IO.mapRequired("uuid", LoadCommand.uuid);
|
||||
}
|
||||
|
||||
void MappingTraits<MachO::version_min_command>::mapping(
|
||||
IO &IO, MachO::version_min_command &LoadCommand) {
|
||||
|
||||
IO.mapRequired("version", LoadCommand.version);
|
||||
IO.mapRequired("sdk", LoadCommand.sdk);
|
||||
}
|
||||
|
||||
} // namespace llvm::yaml
|
||||
|
||||
@ -13,39 +13,128 @@ FileHeader:
|
||||
LoadCommands:
|
||||
- cmd: LC_SEGMENT_64
|
||||
cmdsize: 72
|
||||
segname: __PAGEZERO
|
||||
vmaddr: 0
|
||||
vmsize: 4294967296
|
||||
fileoff: 0
|
||||
filesize: 0
|
||||
maxprot: 0
|
||||
initprot: 0
|
||||
nsects: 0
|
||||
flags: 0
|
||||
- cmd: LC_SEGMENT_64
|
||||
cmdsize: 552
|
||||
segname: __TEXT
|
||||
vmaddr: 4294967296
|
||||
vmsize: 8192
|
||||
fileoff: 0
|
||||
filesize: 8192
|
||||
maxprot: 7
|
||||
initprot: 5
|
||||
nsects: 6
|
||||
flags: 0
|
||||
- cmd: LC_SEGMENT_64
|
||||
cmdsize: 312
|
||||
segname: __DATA
|
||||
vmaddr: 4294975488
|
||||
vmsize: 4096
|
||||
fileoff: 8192
|
||||
filesize: 4096
|
||||
maxprot: 7
|
||||
initprot: 3
|
||||
nsects: 3
|
||||
flags: 0
|
||||
- cmd: LC_SEGMENT_64
|
||||
cmdsize: 72
|
||||
segname: __LINKEDIT
|
||||
vmaddr: 4294979584
|
||||
vmsize: 4096
|
||||
fileoff: 12288
|
||||
filesize: 2508
|
||||
maxprot: 7
|
||||
initprot: 1
|
||||
nsects: 0
|
||||
flags: 0
|
||||
- cmd: LC_DYLD_INFO_ONLY
|
||||
cmdsize: 48
|
||||
rebase_off: 12288
|
||||
rebase_size: 8
|
||||
bind_off: 96
|
||||
weak_bind_off: 0
|
||||
weak_bind_size: 0
|
||||
lazy_bind_off: 624
|
||||
export_off: 13016
|
||||
export_size: 48
|
||||
- cmd: LC_SYMTAB
|
||||
cmdsize: 24
|
||||
symoff: 13080
|
||||
nsyms: 30
|
||||
stroff: 13700
|
||||
strsize: 1096
|
||||
- cmd: LC_DYSYMTAB
|
||||
cmdsize: 80
|
||||
ilocalsym: 0
|
||||
nlocalsym: 9
|
||||
iextdefsym: 9
|
||||
nextdefsym: 2
|
||||
iundefsym: 11
|
||||
nundefsym: 19
|
||||
tocoff: 0
|
||||
ntoc: 0
|
||||
modtaboff: 0
|
||||
nmodtab: 0
|
||||
extrefsymoff: 0
|
||||
nextrefsyms: 0
|
||||
indirectsymoff: 13560
|
||||
nindirectsyms: 35
|
||||
extreloff: 0
|
||||
nextrel: 0
|
||||
locreloff: 0
|
||||
nlocrel: 0
|
||||
- cmd: LC_LOAD_DYLINKER
|
||||
cmdsize: 32
|
||||
name: 12
|
||||
- cmd: LC_UUID
|
||||
cmdsize: 24
|
||||
cmdsize: 24
|
||||
uuid: 461A1B28-822F-3F38-B670-645419E636F5
|
||||
- cmd: LC_VERSION_MIN_MACOSX
|
||||
cmdsize: 16
|
||||
version: 658176
|
||||
sdk: 658176
|
||||
- cmd: LC_SOURCE_VERSION
|
||||
cmdsize: 16
|
||||
version: 0
|
||||
- cmd: LC_MAIN
|
||||
cmdsize: 24
|
||||
entryoff: 4448
|
||||
stacksize: 0
|
||||
- cmd: LC_LOAD_DYLIB
|
||||
cmdsize: 48
|
||||
dylib:
|
||||
name: 24
|
||||
timestamp: 2
|
||||
current_version: 7864576
|
||||
compatibility_version: 65536
|
||||
- cmd: LC_LOAD_DYLIB
|
||||
cmdsize: 56
|
||||
dylib:
|
||||
name: 24
|
||||
timestamp: 2
|
||||
current_version: 80349697
|
||||
compatibility_version: 65536
|
||||
- cmd: LC_FUNCTION_STARTS
|
||||
cmdsize: 16
|
||||
dataoff: 13064
|
||||
datasize: 16
|
||||
- cmd: LC_DATA_IN_CODE
|
||||
cmdsize: 16
|
||||
dataoff: 13080
|
||||
datasize: 0
|
||||
...
|
||||
|
||||
|
||||
|
||||
# CHECK: LoadCommands:
|
||||
# CHECK: - cmd: LC_SEGMENT_64
|
||||
# CHECK: cmdsize: 72
|
||||
|
||||
@ -9,9 +9,9 @@
|
||||
|
||||
#include "Error.h"
|
||||
#include "obj2yaml.h"
|
||||
#include "llvm/Support/ErrorHandling.h"
|
||||
#include "llvm/Object/MachOUniversal.h"
|
||||
#include "llvm/ObjectYAML/MachOYAML.h"
|
||||
#include "llvm/Support/ErrorHandling.h"
|
||||
|
||||
using namespace llvm;
|
||||
|
||||
@ -24,6 +24,14 @@ public:
|
||||
Expected<std::unique_ptr<MachOYAML::Object>> dump();
|
||||
};
|
||||
|
||||
#define HANDLE_LOAD_COMMAND(LCName, LCValue, LCStruct) \
|
||||
case MachO::LCName: \
|
||||
memcpy((void *) & (LC.load_command_data.LCStruct), LoadCmd.Ptr, \
|
||||
sizeof(MachO::LCStruct)); \
|
||||
if (Obj.isLittleEndian() != sys::IsLittleEndianHost) \
|
||||
MachO::swapStruct(LC.load_command_data.LCStruct); \
|
||||
break;
|
||||
|
||||
Expected<std::unique_ptr<MachOYAML::Object>> MachODumper::dump() {
|
||||
auto Y = make_unique<MachOYAML::Object>();
|
||||
Y->Header.magic = Obj.getHeader().magic;
|
||||
@ -35,10 +43,17 @@ Expected<std::unique_ptr<MachOYAML::Object>> MachODumper::dump() {
|
||||
Y->Header.flags = Obj.getHeader().flags;
|
||||
Y->Header.reserved = 0;
|
||||
|
||||
for (auto load_command : Obj.load_commands()) {
|
||||
auto LC = make_unique<MachOYAML::LoadCommand>();
|
||||
LC->cmd = static_cast<MachO::LoadCommandType>(load_command.C.cmd);
|
||||
LC->cmdsize = load_command.C.cmdsize;
|
||||
for (auto LoadCmd : Obj.load_commands()) {
|
||||
MachOYAML::LoadCommand LC;
|
||||
switch (LoadCmd.C.cmd) {
|
||||
default:
|
||||
memcpy((void *)&(LC.load_command_data.load_command), LoadCmd.Ptr,
|
||||
sizeof(MachO::load_command));
|
||||
if (Obj.isLittleEndian() != sys::IsLittleEndianHost)
|
||||
MachO::swapStruct(LC.load_command_data.load_command);
|
||||
break;
|
||||
#include "llvm/Support/MachO.def"
|
||||
}
|
||||
Y->LoadCommands.push_back(std::move(LC));
|
||||
}
|
||||
|
||||
|
||||
@ -79,17 +79,33 @@ Error MachOWriter::writeHeader(raw_ostream &OS) {
|
||||
|
||||
Error MachOWriter::writeLoadCommands(raw_ostream &OS) {
|
||||
for (auto &LC : Obj.LoadCommands) {
|
||||
MachO::load_command LCTemp;
|
||||
LCTemp.cmd = LC->cmd;
|
||||
LCTemp.cmdsize = LC->cmdsize;
|
||||
OS.write(reinterpret_cast<const char *>(&LCTemp),
|
||||
sizeof(MachO::load_command));
|
||||
auto remaining_size = LC->cmdsize - sizeof(MachO::load_command);
|
||||
if (remaining_size > 0) {
|
||||
size_t BytesWritten = 0;
|
||||
#define HANDLE_LOAD_COMMAND(LCName, LCValue, LCStruct) \
|
||||
case MachO::LCName: \
|
||||
OS.write(reinterpret_cast<const char *>(&(LC.load_command_data.LCStruct)), \
|
||||
sizeof(MachO::LCStruct)); \
|
||||
BytesWritten = sizeof(MachO::LCStruct); \
|
||||
break;
|
||||
|
||||
switch (LC.load_command_data.load_command.cmd) {
|
||||
default:
|
||||
OS.write(
|
||||
reinterpret_cast<const char *>(&(LC.load_command_data.load_command)),
|
||||
sizeof(MachO::load_command));
|
||||
BytesWritten = sizeof(MachO::load_command);
|
||||
break;
|
||||
#include "llvm/Support/MachO.def"
|
||||
}
|
||||
|
||||
auto BytesRemaining =
|
||||
LC.load_command_data.load_command.cmdsize - BytesWritten;
|
||||
if (BytesRemaining > 0) {
|
||||
// TODO: Replace all this once the load command data is present in yaml.
|
||||
std::vector<char> fill_data;
|
||||
fill_data.insert(fill_data.begin(), remaining_size, 0);
|
||||
OS.write(fill_data.data(), remaining_size);
|
||||
// For now I fill with 0xDEADBEEF because it is easy to spot on a hex
|
||||
// viewer.
|
||||
std::vector<uint32_t> FillData;
|
||||
FillData.insert(FillData.begin(), BytesRemaining / 4 + 1, 0xDEADBEEFu);
|
||||
OS.write(reinterpret_cast<char *>(FillData.data()), BytesRemaining);
|
||||
}
|
||||
}
|
||||
return Error::success();
|
||||
|
||||
Loading…
Reference in New Issue
Block a user