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	The variable, MachOSectionTypes, seems to have been unused since its introduction in r178679. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@235863 91177308-0d34-0410-b5e6-96231b3b80d8
		
			
				
	
	
		
			564 lines
		
	
	
		
			19 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			564 lines
		
	
	
		
			19 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| //===-- MachODump.cpp - Object file dumping utility for llvm --------------===//
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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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| // This file implements the MachO-specific dumper for llvm-readobj.
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| //
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| //===----------------------------------------------------------------------===//
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| 
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| #include "llvm-readobj.h"
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| #include "Error.h"
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| #include "ObjDumper.h"
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| #include "StreamWriter.h"
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| #include "llvm/ADT/SmallString.h"
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| #include "llvm/ADT/StringExtras.h"
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| #include "llvm/Object/MachO.h"
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| #include "llvm/Support/Casting.h"
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| 
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| using namespace llvm;
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| using namespace object;
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| 
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| namespace {
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| 
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| class MachODumper : public ObjDumper {
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| public:
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|   MachODumper(const MachOObjectFile *Obj, StreamWriter& Writer)
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|     : ObjDumper(Writer)
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|     , Obj(Obj) { }
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| 
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|   void printFileHeaders() override;
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|   void printSections() override;
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|   void printRelocations() override;
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|   void printSymbols() override;
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|   void printDynamicSymbols() override;
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|   void printUnwindInfo() override;
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| 
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| private:
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|   template<class MachHeader>
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|   void printFileHeaders(const MachHeader &Header);
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| 
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|   void printSymbol(const SymbolRef &Symbol);
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| 
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|   void printRelocation(const RelocationRef &Reloc);
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| 
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|   void printRelocation(const MachOObjectFile *Obj, const RelocationRef &Reloc);
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| 
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|   void printSections(const MachOObjectFile *Obj);
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| 
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|   const MachOObjectFile *Obj;
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| };
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| 
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| } // namespace
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| 
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| 
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| namespace llvm {
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| 
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| std::error_code createMachODumper(const object::ObjectFile *Obj,
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|                                   StreamWriter &Writer,
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|                                   std::unique_ptr<ObjDumper> &Result) {
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|   const MachOObjectFile *MachOObj = dyn_cast<MachOObjectFile>(Obj);
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|   if (!MachOObj)
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|     return readobj_error::unsupported_obj_file_format;
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| 
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|   Result.reset(new MachODumper(MachOObj, Writer));
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|   return readobj_error::success;
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| }
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| 
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| } // namespace llvm
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| 
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| static const EnumEntry<uint32_t> MachOMagics[] = {
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|   { "Magic",      MachO::MH_MAGIC    },
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|   { "Cigam",      MachO::MH_CIGAM    },
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|   { "Magic64",    MachO::MH_MAGIC_64 },
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|   { "Cigam64",    MachO::MH_CIGAM_64 },
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|   { "FatMagic",   MachO::FAT_MAGIC   },
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|   { "FatCigam",   MachO::FAT_CIGAM   },
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| };
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| 
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| static const EnumEntry<uint32_t> MachOHeaderFileTypes[] = {
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|   { "Relocatable",          MachO::MH_OBJECT      },
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|   { "Executable",           MachO::MH_EXECUTE     },
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|   { "FixedVMLibrary",       MachO::MH_FVMLIB      },
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|   { "Core",                 MachO::MH_CORE        },
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|   { "PreloadedExecutable",  MachO::MH_PRELOAD     },
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|   { "DynamicLibrary",       MachO::MH_DYLIB       },
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|   { "DynamicLinker",        MachO::MH_DYLINKER    },
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|   { "Bundle",               MachO::MH_BUNDLE      },
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|   { "DynamicLibraryStub",   MachO::MH_DYLIB_STUB  },
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|   { "DWARFSymbol",          MachO::MH_DSYM        },
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|   { "KextBundle",           MachO::MH_KEXT_BUNDLE },
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| };
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| 
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| static const EnumEntry<uint32_t> MachOHeaderCpuTypes[] = {
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|   { "Any"       , static_cast<uint32_t>(MachO::CPU_TYPE_ANY) },
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|   { "X86"       , MachO::CPU_TYPE_X86       },
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|   { "X86-64"    , MachO::CPU_TYPE_X86_64    },
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|   { "Mc98000"   , MachO::CPU_TYPE_MC98000   },
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|   { "Arm"       , MachO::CPU_TYPE_ARM       },
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|   { "Arm64"     , MachO::CPU_TYPE_ARM64     },
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|   { "Sparc"     , MachO::CPU_TYPE_SPARC     },
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|   { "PowerPC"   , MachO::CPU_TYPE_POWERPC   },
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|   { "PowerPC64" , MachO::CPU_TYPE_POWERPC64 },
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| };
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| 
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| static const EnumEntry<uint32_t> MachOHeaderCpuSubtypesX86[] = {
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_I386_ALL),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_386),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_486),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_486SX),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_586),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_PENTPRO),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_PENTII_M3),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_PENTII_M5),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_CELERON),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_CELERON_MOBILE),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_PENTIUM_3),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_PENTIUM_3_M),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_PENTIUM_3_XEON),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_PENTIUM_M),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_PENTIUM_4),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_PENTIUM_4_M),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ITANIUM),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ITANIUM_2),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_XEON),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_XEON_MP),
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| };
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| 
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| static const EnumEntry<uint32_t> MachOHeaderCpuSubtypesX64[] = {
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_X86_64_ALL),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_X86_ARCH1),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_X86_64_H),
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| };
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| 
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| static const EnumEntry<uint32_t> MachOHeaderCpuSubtypesARM[] = {
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM_ALL),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM_V4T),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM_V6),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM_V5),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM_V5TEJ),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM_XSCALE),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM_V7),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM_V7S),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM_V7K),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM_V6M),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM_V7M),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM_V7EM),
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| };
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| 
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| static const EnumEntry<uint32_t> MachOHeaderCpuSubtypesARM64[] = {
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_ARM64_ALL),
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| };
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| 
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| static const EnumEntry<uint32_t> MachOHeaderCpuSubtypesSPARC[] = {
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_SPARC_ALL),
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| };
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| 
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| static const EnumEntry<uint32_t> MachOHeaderCpuSubtypesPPC[] = {
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_POWERPC_ALL),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_POWERPC_601),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_POWERPC_602),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_POWERPC_603),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_POWERPC_603e),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_POWERPC_603ev),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_POWERPC_604),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_POWERPC_604e),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_POWERPC_620),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_POWERPC_750),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_POWERPC_7400),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_POWERPC_7450),
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|   LLVM_READOBJ_ENUM_ENT(MachO, CPU_SUBTYPE_POWERPC_970),
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| };
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| 
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| static const EnumEntry<uint32_t> MachOHeaderFlags[] = {
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|   LLVM_READOBJ_ENUM_ENT(MachO, MH_NOUNDEFS),
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|   LLVM_READOBJ_ENUM_ENT(MachO, MH_INCRLINK),
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|   LLVM_READOBJ_ENUM_ENT(MachO, MH_DYLDLINK),
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|   LLVM_READOBJ_ENUM_ENT(MachO, MH_BINDATLOAD),
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|   LLVM_READOBJ_ENUM_ENT(MachO, MH_PREBOUND),
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|   LLVM_READOBJ_ENUM_ENT(MachO, MH_SPLIT_SEGS),
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|   LLVM_READOBJ_ENUM_ENT(MachO, MH_LAZY_INIT),
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|   LLVM_READOBJ_ENUM_ENT(MachO, MH_TWOLEVEL),
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|   LLVM_READOBJ_ENUM_ENT(MachO, MH_FORCE_FLAT),
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|   LLVM_READOBJ_ENUM_ENT(MachO, MH_NOMULTIDEFS),
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|   LLVM_READOBJ_ENUM_ENT(MachO, MH_NOFIXPREBINDING),
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|   LLVM_READOBJ_ENUM_ENT(MachO, MH_PREBINDABLE),
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|   LLVM_READOBJ_ENUM_ENT(MachO, MH_ALLMODSBOUND),
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|   LLVM_READOBJ_ENUM_ENT(MachO, MH_SUBSECTIONS_VIA_SYMBOLS),
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|   LLVM_READOBJ_ENUM_ENT(MachO, MH_CANONICAL),
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|   LLVM_READOBJ_ENUM_ENT(MachO, MH_WEAK_DEFINES),
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|   LLVM_READOBJ_ENUM_ENT(MachO, MH_BINDS_TO_WEAK),
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|   LLVM_READOBJ_ENUM_ENT(MachO, MH_ALLOW_STACK_EXECUTION),
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|   LLVM_READOBJ_ENUM_ENT(MachO, MH_ROOT_SAFE),
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|   LLVM_READOBJ_ENUM_ENT(MachO, MH_SETUID_SAFE),
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|   LLVM_READOBJ_ENUM_ENT(MachO, MH_NO_REEXPORTED_DYLIBS),
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|   LLVM_READOBJ_ENUM_ENT(MachO, MH_PIE),
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|   LLVM_READOBJ_ENUM_ENT(MachO, MH_DEAD_STRIPPABLE_DYLIB),
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|   LLVM_READOBJ_ENUM_ENT(MachO, MH_HAS_TLV_DESCRIPTORS),
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|   LLVM_READOBJ_ENUM_ENT(MachO, MH_NO_HEAP_EXECUTION),
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|   LLVM_READOBJ_ENUM_ENT(MachO, MH_APP_EXTENSION_SAFE),
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| };
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| 
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| static const EnumEntry<unsigned> MachOSectionAttributes[] = {
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|   { "LocReloc"         , 1 <<  0 /*S_ATTR_LOC_RELOC          */ },
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|   { "ExtReloc"         , 1 <<  1 /*S_ATTR_EXT_RELOC          */ },
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|   { "SomeInstructions" , 1 <<  2 /*S_ATTR_SOME_INSTRUCTIONS  */ },
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|   { "Debug"            , 1 << 17 /*S_ATTR_DEBUG              */ },
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|   { "SelfModifyingCode", 1 << 18 /*S_ATTR_SELF_MODIFYING_CODE*/ },
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|   { "LiveSupport"      , 1 << 19 /*S_ATTR_LIVE_SUPPORT       */ },
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|   { "NoDeadStrip"      , 1 << 20 /*S_ATTR_NO_DEAD_STRIP      */ },
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|   { "StripStaticSyms"  , 1 << 21 /*S_ATTR_STRIP_STATIC_SYMS  */ },
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|   { "NoTOC"            , 1 << 22 /*S_ATTR_NO_TOC             */ },
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|   { "PureInstructions" , 1 << 23 /*S_ATTR_PURE_INSTRUCTIONS  */ },
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| };
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| 
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| static const EnumEntry<unsigned> MachOSymbolRefTypes[] = {
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|   { "UndefinedNonLazy",                     0 },
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|   { "ReferenceFlagUndefinedLazy",           1 },
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|   { "ReferenceFlagDefined",                 2 },
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|   { "ReferenceFlagPrivateDefined",          3 },
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|   { "ReferenceFlagPrivateUndefinedNonLazy", 4 },
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|   { "ReferenceFlagPrivateUndefinedLazy",    5 }
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| };
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| 
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| static const EnumEntry<unsigned> MachOSymbolFlags[] = {
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|   { "ReferencedDynamically", 0x10 },
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|   { "NoDeadStrip",           0x20 },
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|   { "WeakRef",               0x40 },
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|   { "WeakDef",               0x80 }
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| };
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| 
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| static const EnumEntry<unsigned> MachOSymbolTypes[] = {
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|   { "Undef",           0x0 },
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|   { "Abs",             0x2 },
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|   { "Indirect",        0xA },
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|   { "PreboundUndef",   0xC },
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|   { "Section",         0xE }
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| };
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| 
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| namespace {
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|   struct MachOSection {
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|     ArrayRef<char> Name;
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|     ArrayRef<char> SegmentName;
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|     uint64_t Address;
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|     uint64_t Size;
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|     uint32_t Offset;
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|     uint32_t Alignment;
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|     uint32_t RelocationTableOffset;
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|     uint32_t NumRelocationTableEntries;
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|     uint32_t Flags;
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|     uint32_t Reserved1;
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|     uint32_t Reserved2;
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|   };
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| 
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|   struct MachOSymbol {
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|     uint32_t StringIndex;
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|     uint8_t Type;
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|     uint8_t SectionIndex;
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|     uint16_t Flags;
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|     uint64_t Value;
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|   };
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| }
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| 
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| static void getSection(const MachOObjectFile *Obj,
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|                        DataRefImpl Sec,
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|                        MachOSection &Section) {
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|   if (!Obj->is64Bit()) {
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|     MachO::section Sect = Obj->getSection(Sec);
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|     Section.Address     = Sect.addr;
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|     Section.Size        = Sect.size;
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|     Section.Offset      = Sect.offset;
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|     Section.Alignment   = Sect.align;
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|     Section.RelocationTableOffset = Sect.reloff;
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|     Section.NumRelocationTableEntries = Sect.nreloc;
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|     Section.Flags       = Sect.flags;
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|     Section.Reserved1   = Sect.reserved1;
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|     Section.Reserved2   = Sect.reserved2;
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|     return;
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|   }
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|   MachO::section_64 Sect = Obj->getSection64(Sec);
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|   Section.Address     = Sect.addr;
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|   Section.Size        = Sect.size;
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|   Section.Offset      = Sect.offset;
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|   Section.Alignment   = Sect.align;
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|   Section.RelocationTableOffset = Sect.reloff;
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|   Section.NumRelocationTableEntries = Sect.nreloc;
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|   Section.Flags       = Sect.flags;
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|   Section.Reserved1   = Sect.reserved1;
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|   Section.Reserved2   = Sect.reserved2;
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| }
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| 
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| 
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| static void getSymbol(const MachOObjectFile *Obj,
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|                       DataRefImpl DRI,
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|                       MachOSymbol &Symbol) {
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|   if (!Obj->is64Bit()) {
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|     MachO::nlist Entry = Obj->getSymbolTableEntry(DRI);
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|     Symbol.StringIndex  = Entry.n_strx;
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|     Symbol.Type         = Entry.n_type;
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|     Symbol.SectionIndex = Entry.n_sect;
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|     Symbol.Flags        = Entry.n_desc;
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|     Symbol.Value        = Entry.n_value;
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|     return;
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|   }
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|   MachO::nlist_64 Entry = Obj->getSymbol64TableEntry(DRI);
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|   Symbol.StringIndex  = Entry.n_strx;
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|   Symbol.Type         = Entry.n_type;
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|   Symbol.SectionIndex = Entry.n_sect;
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|   Symbol.Flags        = Entry.n_desc;
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|   Symbol.Value        = Entry.n_value;
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| }
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| 
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| void MachODumper::printFileHeaders() {
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|   DictScope H(W, "MachHeader");
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|   if (!Obj->is64Bit()) {
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|     printFileHeaders(Obj->getHeader());
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|   } else {
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|     printFileHeaders(Obj->getHeader64());
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|     W.printHex("Reserved", Obj->getHeader64().reserved);
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|   }
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| }
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| 
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| template<class MachHeader>
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| void MachODumper::printFileHeaders(const MachHeader &Header) {
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|   W.printEnum("Magic", Header.magic, makeArrayRef(MachOMagics));
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|   W.printEnum("CpuType", Header.cputype, makeArrayRef(MachOHeaderCpuTypes));
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|   uint32_t subtype = Header.cpusubtype & ~MachO::CPU_SUBTYPE_MASK;
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|   switch (Header.cputype) {
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|   case MachO::CPU_TYPE_X86:
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|     W.printEnum("CpuSubType", subtype, makeArrayRef(MachOHeaderCpuSubtypesX86));
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|     break;
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|   case MachO::CPU_TYPE_X86_64:
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|     W.printEnum("CpuSubType", subtype, makeArrayRef(MachOHeaderCpuSubtypesX64));
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|     break;
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|   case MachO::CPU_TYPE_ARM:
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|     W.printEnum("CpuSubType", subtype, makeArrayRef(MachOHeaderCpuSubtypesARM));
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|     break;
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|   case MachO::CPU_TYPE_POWERPC:
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|     W.printEnum("CpuSubType", subtype, makeArrayRef(MachOHeaderCpuSubtypesPPC));
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|     break;
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|   case MachO::CPU_TYPE_SPARC:
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|     W.printEnum("CpuSubType", subtype, makeArrayRef(MachOHeaderCpuSubtypesSPARC));
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|     break;
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|   case MachO::CPU_TYPE_ARM64:
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|     W.printEnum("CpuSubType", subtype, makeArrayRef(MachOHeaderCpuSubtypesARM64));
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|     break;
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|   case MachO::CPU_TYPE_POWERPC64:
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|   default:
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|     W.printHex("CpuSubtype", subtype);
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|   }
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|   W.printEnum("FileType", Header.filetype, makeArrayRef(MachOHeaderFileTypes));
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|   W.printNumber("NumOfLoadCommands", Header.ncmds);
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|   W.printNumber("SizeOfLoadCommands", Header.sizeofcmds);
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|   W.printFlags("Flags", Header.flags, makeArrayRef(MachOHeaderFlags));
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| }
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| 
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| void MachODumper::printSections() {
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|   return printSections(Obj);
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| }
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| 
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| void MachODumper::printSections(const MachOObjectFile *Obj) {
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|   ListScope Group(W, "Sections");
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| 
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|   int SectionIndex = -1;
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|   for (const SectionRef &Section : Obj->sections()) {
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|     ++SectionIndex;
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| 
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|     MachOSection MOSection;
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|     getSection(Obj, Section.getRawDataRefImpl(), MOSection);
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|     DataRefImpl DR = Section.getRawDataRefImpl();
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| 
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|     StringRef Name;
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|     if (error(Section.getName(Name)))
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|       Name = "";
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| 
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|     ArrayRef<char> RawName = Obj->getSectionRawName(DR);
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|     StringRef SegmentName = Obj->getSectionFinalSegmentName(DR);
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|     ArrayRef<char> RawSegmentName = Obj->getSectionRawFinalSegmentName(DR);
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| 
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|     DictScope SectionD(W, "Section");
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|     W.printNumber("Index", SectionIndex);
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|     W.printBinary("Name", Name, RawName);
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|     W.printBinary("Segment", SegmentName, RawSegmentName);
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|     W.printHex("Address", MOSection.Address);
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|     W.printHex("Size", MOSection.Size);
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|     W.printNumber("Offset", MOSection.Offset);
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|     W.printNumber("Alignment", MOSection.Alignment);
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|     W.printHex("RelocationOffset", MOSection.RelocationTableOffset);
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|     W.printNumber("RelocationCount", MOSection.NumRelocationTableEntries);
 | |
|     W.printEnum("Type", MOSection.Flags & 0xFF,
 | |
|                 makeArrayRef(MachOSectionAttributes));
 | |
|     W.printFlags("Attributes", MOSection.Flags >> 8,
 | |
|                  makeArrayRef(MachOSectionAttributes));
 | |
|     W.printHex("Reserved1", MOSection.Reserved1);
 | |
|     W.printHex("Reserved2", MOSection.Reserved2);
 | |
| 
 | |
|     if (opts::SectionRelocations) {
 | |
|       ListScope D(W, "Relocations");
 | |
|       for (const RelocationRef &Reloc : Section.relocations())
 | |
|         printRelocation(Reloc);
 | |
|     }
 | |
| 
 | |
|     if (opts::SectionSymbols) {
 | |
|       ListScope D(W, "Symbols");
 | |
|       for (const SymbolRef &Symbol : Obj->symbols()) {
 | |
|         if (!Section.containsSymbol(Symbol))
 | |
|           continue;
 | |
| 
 | |
|         printSymbol(Symbol);
 | |
|       }
 | |
|     }
 | |
| 
 | |
|     if (opts::SectionData) {
 | |
|       bool IsBSS = Section.isBSS();
 | |
|       if (!IsBSS) {
 | |
|         StringRef Data;
 | |
|         if (error(Section.getContents(Data)))
 | |
|           break;
 | |
| 
 | |
|         W.printBinaryBlock("SectionData", Data);
 | |
|       }
 | |
|     }
 | |
|   }
 | |
| }
 | |
| 
 | |
| void MachODumper::printRelocations() {
 | |
|   ListScope D(W, "Relocations");
 | |
| 
 | |
|   std::error_code EC;
 | |
|   for (const SectionRef &Section : Obj->sections()) {
 | |
|     StringRef Name;
 | |
|     if (error(Section.getName(Name)))
 | |
|       continue;
 | |
| 
 | |
|     bool PrintedGroup = false;
 | |
|     for (const RelocationRef &Reloc : Section.relocations()) {
 | |
|       if (!PrintedGroup) {
 | |
|         W.startLine() << "Section " << Name << " {\n";
 | |
|         W.indent();
 | |
|         PrintedGroup = true;
 | |
|       }
 | |
| 
 | |
|       printRelocation(Reloc);
 | |
|     }
 | |
| 
 | |
|     if (PrintedGroup) {
 | |
|       W.unindent();
 | |
|       W.startLine() << "}\n";
 | |
|     }
 | |
|   }
 | |
| }
 | |
| 
 | |
| void MachODumper::printRelocation(const RelocationRef &Reloc) {
 | |
|   return printRelocation(Obj, Reloc);
 | |
| }
 | |
| 
 | |
| void MachODumper::printRelocation(const MachOObjectFile *Obj,
 | |
|                                   const RelocationRef &Reloc) {
 | |
|   uint64_t Offset;
 | |
|   SmallString<32> RelocName;
 | |
|   if (error(Reloc.getOffset(Offset)))
 | |
|     return;
 | |
|   if (error(Reloc.getTypeName(RelocName)))
 | |
|     return;
 | |
| 
 | |
|   DataRefImpl DR = Reloc.getRawDataRefImpl();
 | |
|   MachO::any_relocation_info RE = Obj->getRelocation(DR);
 | |
|   bool IsScattered = Obj->isRelocationScattered(RE);
 | |
|   SmallString<32> SymbolNameOrOffset("0x");
 | |
|   if (IsScattered) {
 | |
|     // Scattered relocations don't really have an associated symbol
 | |
|     // for some reason, even if one exists in the symtab at the correct address.
 | |
|     SymbolNameOrOffset += utohexstr(Obj->getScatteredRelocationValue(RE));
 | |
|   } else {
 | |
|     symbol_iterator Symbol = Reloc.getSymbol();
 | |
|     if (Symbol != Obj->symbol_end()) {
 | |
|       StringRef SymbolName;
 | |
|       if (error(Symbol->getName(SymbolName)))
 | |
|         return;
 | |
|       SymbolNameOrOffset = SymbolName;
 | |
|     } else
 | |
|       SymbolNameOrOffset += utohexstr(Obj->getPlainRelocationSymbolNum(RE));
 | |
|   }
 | |
| 
 | |
|   if (opts::ExpandRelocs) {
 | |
|     DictScope Group(W, "Relocation");
 | |
|     W.printHex("Offset", Offset);
 | |
|     W.printNumber("PCRel", Obj->getAnyRelocationPCRel(RE));
 | |
|     W.printNumber("Length", Obj->getAnyRelocationLength(RE));
 | |
|     if (IsScattered)
 | |
|       W.printString("Extern", StringRef("N/A"));
 | |
|     else
 | |
|       W.printNumber("Extern", Obj->getPlainRelocationExternal(RE));
 | |
|     W.printNumber("Type", RelocName, Obj->getAnyRelocationType(RE));
 | |
|     W.printString("Symbol", SymbolNameOrOffset);
 | |
|     W.printNumber("Scattered", IsScattered);
 | |
|   } else {
 | |
|     raw_ostream& OS = W.startLine();
 | |
|     OS << W.hex(Offset)
 | |
|        << " " << Obj->getAnyRelocationPCRel(RE)
 | |
|        << " " << Obj->getAnyRelocationLength(RE);
 | |
|     if (IsScattered)
 | |
|       OS << " n/a";
 | |
|     else
 | |
|       OS << " " << Obj->getPlainRelocationExternal(RE);
 | |
|     OS << " " << RelocName
 | |
|        << " " << IsScattered
 | |
|        << " " << SymbolNameOrOffset
 | |
|        << "\n";
 | |
|   }
 | |
| }
 | |
| 
 | |
| void MachODumper::printSymbols() {
 | |
|   ListScope Group(W, "Symbols");
 | |
| 
 | |
|   for (const SymbolRef &Symbol : Obj->symbols()) {
 | |
|     printSymbol(Symbol);
 | |
|   }
 | |
| }
 | |
| 
 | |
| void MachODumper::printDynamicSymbols() {
 | |
|   ListScope Group(W, "DynamicSymbols");
 | |
| }
 | |
| 
 | |
| void MachODumper::printSymbol(const SymbolRef &Symbol) {
 | |
|   StringRef SymbolName;
 | |
|   if (Symbol.getName(SymbolName))
 | |
|     SymbolName = "";
 | |
| 
 | |
|   MachOSymbol MOSymbol;
 | |
|   getSymbol(Obj, Symbol.getRawDataRefImpl(), MOSymbol);
 | |
| 
 | |
|   StringRef SectionName = "";
 | |
|   section_iterator SecI(Obj->section_begin());
 | |
|   if (!error(Symbol.getSection(SecI)) && SecI != Obj->section_end())
 | |
|     error(SecI->getName(SectionName));
 | |
| 
 | |
|   DictScope D(W, "Symbol");
 | |
|   W.printNumber("Name", SymbolName, MOSymbol.StringIndex);
 | |
|   if (MOSymbol.Type & MachO::N_STAB) {
 | |
|     W.printHex("Type", "SymDebugTable", MOSymbol.Type);
 | |
|   } else {
 | |
|     if (MOSymbol.Type & MachO::N_PEXT)
 | |
|       W.startLine() << "PrivateExtern\n";
 | |
|     if (MOSymbol.Type & MachO::N_EXT)
 | |
|       W.startLine() << "Extern\n";
 | |
|     W.printEnum("Type", uint8_t(MOSymbol.Type & MachO::N_TYPE),
 | |
|                 makeArrayRef(MachOSymbolTypes));
 | |
|   }
 | |
|   W.printHex("Section", SectionName, MOSymbol.SectionIndex);
 | |
|   W.printEnum("RefType", static_cast<uint16_t>(MOSymbol.Flags & 0xF),
 | |
|               makeArrayRef(MachOSymbolRefTypes));
 | |
|   W.printFlags("Flags", static_cast<uint16_t>(MOSymbol.Flags & ~0xF),
 | |
|                makeArrayRef(MachOSymbolFlags));
 | |
|   W.printHex("Value", MOSymbol.Value);
 | |
| }
 | |
| 
 | |
| void MachODumper::printUnwindInfo() {
 | |
|   W.startLine() << "UnwindInfo not implemented.\n";
 | |
| }
 |