1 //===-- ELFDumper.cpp - ELF-specific dumper ---------------------*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 ///
10 /// \file
11 /// \brief This file implements the ELF-specific dumper for llvm-readobj.
12 ///
13 //===----------------------------------------------------------------------===//
14 
15 #include "llvm-readobj.h"
16 #include "ARMAttributeParser.h"
17 #include "ARMEHABIPrinter.h"
18 #include "Error.h"
19 #include "ObjDumper.h"
20 #include "StreamWriter.h"
21 #include "llvm/ADT/SmallString.h"
22 #include "llvm/ADT/StringExtras.h"
23 #include "llvm/Object/ELFObjectFile.h"
24 #include "llvm/Support/ARMBuildAttributes.h"
25 #include "llvm/Support/Compiler.h"
26 #include "llvm/Support/Format.h"
27 #include "llvm/Support/MathExtras.h"
28 #include "llvm/Support/raw_ostream.h"
29 
30 using namespace llvm;
31 using namespace llvm::object;
32 using namespace ELF;
33 
34 #define LLVM_READOBJ_ENUM_CASE(ns, enum) \
35   case ns::enum: return #enum;
36 
37 namespace {
38 
39 template<typename ELFT>
40 class ELFDumper : public ObjDumper {
41 public:
42   ELFDumper(const ELFFile<ELFT> *Obj, StreamWriter &Writer)
43       : ObjDumper(Writer), Obj(Obj) {}
44 
45   virtual void printFileHeaders() LLVM_OVERRIDE;
46   virtual void printSections() LLVM_OVERRIDE;
47   virtual void printRelocations() LLVM_OVERRIDE;
48   virtual void printSymbols() LLVM_OVERRIDE;
49   virtual void printDynamicSymbols() LLVM_OVERRIDE;
50   virtual void printUnwindInfo() LLVM_OVERRIDE;
51 
52   virtual void printDynamicTable() LLVM_OVERRIDE;
53   virtual void printNeededLibraries() LLVM_OVERRIDE;
54   virtual void printProgramHeaders() LLVM_OVERRIDE;
55 
56   virtual void printAttributes() LLVM_OVERRIDE;
57 
58 private:
59   typedef ELFFile<ELFT> ELFO;
60   typedef typename ELFO::Elf_Shdr Elf_Shdr;
61   typedef typename ELFO::Elf_Sym Elf_Sym;
62 
63   void printSymbol(typename ELFO::Elf_Sym_Iter Symbol);
64 
65   void printRelocations(const Elf_Shdr *Sec);
66   void printRelocation(const Elf_Shdr *Sec, typename ELFO::Elf_Rela Rel);
67 
68   const ELFO *Obj;
69 };
70 
71 template <class T> T errorOrDefault(ErrorOr<T> Val, T Default = T()) {
72   if (!Val) {
73     error(Val.getError());
74     return Default;
75   }
76 
77   return *Val;
78 }
79 } // namespace
80 
81 namespace llvm {
82 
83 template <class ELFT>
84 static error_code createELFDumper(const ELFFile<ELFT> *Obj,
85                                   StreamWriter &Writer,
86                                   OwningPtr<ObjDumper> &Result) {
87   Result.reset(new ELFDumper<ELFT>(Obj, Writer));
88   return readobj_error::success;
89 }
90 
91 error_code createELFDumper(const object::ObjectFile *Obj,
92                            StreamWriter& Writer,
93                            OwningPtr<ObjDumper> &Result) {
94   // Little-endian 32-bit
95   if (const ELF32LEObjectFile *ELFObj = dyn_cast<ELF32LEObjectFile>(Obj))
96     return createELFDumper(ELFObj->getELFFile(), Writer, Result);
97 
98   // Big-endian 32-bit
99   if (const ELF32BEObjectFile *ELFObj = dyn_cast<ELF32BEObjectFile>(Obj))
100     return createELFDumper(ELFObj->getELFFile(), Writer, Result);
101 
102   // Little-endian 64-bit
103   if (const ELF64LEObjectFile *ELFObj = dyn_cast<ELF64LEObjectFile>(Obj))
104     return createELFDumper(ELFObj->getELFFile(), Writer, Result);
105 
106   // Big-endian 64-bit
107   if (const ELF64BEObjectFile *ELFObj = dyn_cast<ELF64BEObjectFile>(Obj))
108     return createELFDumper(ELFObj->getELFFile(), Writer, Result);
109 
110   return readobj_error::unsupported_obj_file_format;
111 }
112 
113 } // namespace llvm
114 
115 static const EnumEntry<unsigned> ElfClass[] = {
116   { "None",   ELF::ELFCLASSNONE },
117   { "32-bit", ELF::ELFCLASS32   },
118   { "64-bit", ELF::ELFCLASS64   },
119 };
120 
121 static const EnumEntry<unsigned> ElfDataEncoding[] = {
122   { "None",         ELF::ELFDATANONE },
123   { "LittleEndian", ELF::ELFDATA2LSB },
124   { "BigEndian",    ELF::ELFDATA2MSB },
125 };
126 
127 static const EnumEntry<unsigned> ElfObjectFileType[] = {
128   { "None",         ELF::ET_NONE },
129   { "Relocatable",  ELF::ET_REL  },
130   { "Executable",   ELF::ET_EXEC },
131   { "SharedObject", ELF::ET_DYN  },
132   { "Core",         ELF::ET_CORE },
133 };
134 
135 static const EnumEntry<unsigned> ElfOSABI[] = {
136   { "SystemV",      ELF::ELFOSABI_NONE         },
137   { "HPUX",         ELF::ELFOSABI_HPUX         },
138   { "NetBSD",       ELF::ELFOSABI_NETBSD       },
139   { "GNU/Linux",    ELF::ELFOSABI_LINUX        },
140   { "GNU/Hurd",     ELF::ELFOSABI_HURD         },
141   { "Solaris",      ELF::ELFOSABI_SOLARIS      },
142   { "AIX",          ELF::ELFOSABI_AIX          },
143   { "IRIX",         ELF::ELFOSABI_IRIX         },
144   { "FreeBSD",      ELF::ELFOSABI_FREEBSD      },
145   { "TRU64",        ELF::ELFOSABI_TRU64        },
146   { "Modesto",      ELF::ELFOSABI_MODESTO      },
147   { "OpenBSD",      ELF::ELFOSABI_OPENBSD      },
148   { "OpenVMS",      ELF::ELFOSABI_OPENVMS      },
149   { "NSK",          ELF::ELFOSABI_NSK          },
150   { "AROS",         ELF::ELFOSABI_AROS         },
151   { "FenixOS",      ELF::ELFOSABI_FENIXOS      },
152   { "C6000_ELFABI", ELF::ELFOSABI_C6000_ELFABI },
153   { "C6000_LINUX" , ELF::ELFOSABI_C6000_LINUX  },
154   { "ARM",          ELF::ELFOSABI_ARM          },
155   { "Standalone"  , ELF::ELFOSABI_STANDALONE   }
156 };
157 
158 static const EnumEntry<unsigned> ElfMachineType[] = {
159   LLVM_READOBJ_ENUM_ENT(ELF, EM_NONE         ),
160   LLVM_READOBJ_ENUM_ENT(ELF, EM_M32          ),
161   LLVM_READOBJ_ENUM_ENT(ELF, EM_SPARC        ),
162   LLVM_READOBJ_ENUM_ENT(ELF, EM_386          ),
163   LLVM_READOBJ_ENUM_ENT(ELF, EM_68K          ),
164   LLVM_READOBJ_ENUM_ENT(ELF, EM_88K          ),
165   LLVM_READOBJ_ENUM_ENT(ELF, EM_486          ),
166   LLVM_READOBJ_ENUM_ENT(ELF, EM_860          ),
167   LLVM_READOBJ_ENUM_ENT(ELF, EM_MIPS         ),
168   LLVM_READOBJ_ENUM_ENT(ELF, EM_S370         ),
169   LLVM_READOBJ_ENUM_ENT(ELF, EM_MIPS_RS3_LE  ),
170   LLVM_READOBJ_ENUM_ENT(ELF, EM_PARISC       ),
171   LLVM_READOBJ_ENUM_ENT(ELF, EM_VPP500       ),
172   LLVM_READOBJ_ENUM_ENT(ELF, EM_SPARC32PLUS  ),
173   LLVM_READOBJ_ENUM_ENT(ELF, EM_960          ),
174   LLVM_READOBJ_ENUM_ENT(ELF, EM_PPC          ),
175   LLVM_READOBJ_ENUM_ENT(ELF, EM_PPC64        ),
176   LLVM_READOBJ_ENUM_ENT(ELF, EM_S390         ),
177   LLVM_READOBJ_ENUM_ENT(ELF, EM_SPU          ),
178   LLVM_READOBJ_ENUM_ENT(ELF, EM_V800         ),
179   LLVM_READOBJ_ENUM_ENT(ELF, EM_FR20         ),
180   LLVM_READOBJ_ENUM_ENT(ELF, EM_RH32         ),
181   LLVM_READOBJ_ENUM_ENT(ELF, EM_RCE          ),
182   LLVM_READOBJ_ENUM_ENT(ELF, EM_ARM          ),
183   LLVM_READOBJ_ENUM_ENT(ELF, EM_ALPHA        ),
184   LLVM_READOBJ_ENUM_ENT(ELF, EM_SH           ),
185   LLVM_READOBJ_ENUM_ENT(ELF, EM_SPARCV9      ),
186   LLVM_READOBJ_ENUM_ENT(ELF, EM_TRICORE      ),
187   LLVM_READOBJ_ENUM_ENT(ELF, EM_ARC          ),
188   LLVM_READOBJ_ENUM_ENT(ELF, EM_H8_300       ),
189   LLVM_READOBJ_ENUM_ENT(ELF, EM_H8_300H      ),
190   LLVM_READOBJ_ENUM_ENT(ELF, EM_H8S          ),
191   LLVM_READOBJ_ENUM_ENT(ELF, EM_H8_500       ),
192   LLVM_READOBJ_ENUM_ENT(ELF, EM_IA_64        ),
193   LLVM_READOBJ_ENUM_ENT(ELF, EM_MIPS_X       ),
194   LLVM_READOBJ_ENUM_ENT(ELF, EM_COLDFIRE     ),
195   LLVM_READOBJ_ENUM_ENT(ELF, EM_68HC12       ),
196   LLVM_READOBJ_ENUM_ENT(ELF, EM_MMA          ),
197   LLVM_READOBJ_ENUM_ENT(ELF, EM_PCP          ),
198   LLVM_READOBJ_ENUM_ENT(ELF, EM_NCPU         ),
199   LLVM_READOBJ_ENUM_ENT(ELF, EM_NDR1         ),
200   LLVM_READOBJ_ENUM_ENT(ELF, EM_STARCORE     ),
201   LLVM_READOBJ_ENUM_ENT(ELF, EM_ME16         ),
202   LLVM_READOBJ_ENUM_ENT(ELF, EM_ST100        ),
203   LLVM_READOBJ_ENUM_ENT(ELF, EM_TINYJ        ),
204   LLVM_READOBJ_ENUM_ENT(ELF, EM_X86_64       ),
205   LLVM_READOBJ_ENUM_ENT(ELF, EM_PDSP         ),
206   LLVM_READOBJ_ENUM_ENT(ELF, EM_PDP10        ),
207   LLVM_READOBJ_ENUM_ENT(ELF, EM_PDP11        ),
208   LLVM_READOBJ_ENUM_ENT(ELF, EM_FX66         ),
209   LLVM_READOBJ_ENUM_ENT(ELF, EM_ST9PLUS      ),
210   LLVM_READOBJ_ENUM_ENT(ELF, EM_ST7          ),
211   LLVM_READOBJ_ENUM_ENT(ELF, EM_68HC16       ),
212   LLVM_READOBJ_ENUM_ENT(ELF, EM_68HC11       ),
213   LLVM_READOBJ_ENUM_ENT(ELF, EM_68HC08       ),
214   LLVM_READOBJ_ENUM_ENT(ELF, EM_68HC05       ),
215   LLVM_READOBJ_ENUM_ENT(ELF, EM_SVX          ),
216   LLVM_READOBJ_ENUM_ENT(ELF, EM_ST19         ),
217   LLVM_READOBJ_ENUM_ENT(ELF, EM_VAX          ),
218   LLVM_READOBJ_ENUM_ENT(ELF, EM_CRIS         ),
219   LLVM_READOBJ_ENUM_ENT(ELF, EM_JAVELIN      ),
220   LLVM_READOBJ_ENUM_ENT(ELF, EM_FIREPATH     ),
221   LLVM_READOBJ_ENUM_ENT(ELF, EM_ZSP          ),
222   LLVM_READOBJ_ENUM_ENT(ELF, EM_MMIX         ),
223   LLVM_READOBJ_ENUM_ENT(ELF, EM_HUANY        ),
224   LLVM_READOBJ_ENUM_ENT(ELF, EM_PRISM        ),
225   LLVM_READOBJ_ENUM_ENT(ELF, EM_AVR          ),
226   LLVM_READOBJ_ENUM_ENT(ELF, EM_FR30         ),
227   LLVM_READOBJ_ENUM_ENT(ELF, EM_D10V         ),
228   LLVM_READOBJ_ENUM_ENT(ELF, EM_D30V         ),
229   LLVM_READOBJ_ENUM_ENT(ELF, EM_V850         ),
230   LLVM_READOBJ_ENUM_ENT(ELF, EM_M32R         ),
231   LLVM_READOBJ_ENUM_ENT(ELF, EM_MN10300      ),
232   LLVM_READOBJ_ENUM_ENT(ELF, EM_MN10200      ),
233   LLVM_READOBJ_ENUM_ENT(ELF, EM_PJ           ),
234   LLVM_READOBJ_ENUM_ENT(ELF, EM_OPENRISC     ),
235   LLVM_READOBJ_ENUM_ENT(ELF, EM_ARC_COMPACT  ),
236   LLVM_READOBJ_ENUM_ENT(ELF, EM_XTENSA       ),
237   LLVM_READOBJ_ENUM_ENT(ELF, EM_VIDEOCORE    ),
238   LLVM_READOBJ_ENUM_ENT(ELF, EM_TMM_GPP      ),
239   LLVM_READOBJ_ENUM_ENT(ELF, EM_NS32K        ),
240   LLVM_READOBJ_ENUM_ENT(ELF, EM_TPC          ),
241   LLVM_READOBJ_ENUM_ENT(ELF, EM_SNP1K        ),
242   LLVM_READOBJ_ENUM_ENT(ELF, EM_ST200        ),
243   LLVM_READOBJ_ENUM_ENT(ELF, EM_IP2K         ),
244   LLVM_READOBJ_ENUM_ENT(ELF, EM_MAX          ),
245   LLVM_READOBJ_ENUM_ENT(ELF, EM_CR           ),
246   LLVM_READOBJ_ENUM_ENT(ELF, EM_F2MC16       ),
247   LLVM_READOBJ_ENUM_ENT(ELF, EM_MSP430       ),
248   LLVM_READOBJ_ENUM_ENT(ELF, EM_BLACKFIN     ),
249   LLVM_READOBJ_ENUM_ENT(ELF, EM_SE_C33       ),
250   LLVM_READOBJ_ENUM_ENT(ELF, EM_SEP          ),
251   LLVM_READOBJ_ENUM_ENT(ELF, EM_ARCA         ),
252   LLVM_READOBJ_ENUM_ENT(ELF, EM_UNICORE      ),
253   LLVM_READOBJ_ENUM_ENT(ELF, EM_EXCESS       ),
254   LLVM_READOBJ_ENUM_ENT(ELF, EM_DXP          ),
255   LLVM_READOBJ_ENUM_ENT(ELF, EM_ALTERA_NIOS2 ),
256   LLVM_READOBJ_ENUM_ENT(ELF, EM_CRX          ),
257   LLVM_READOBJ_ENUM_ENT(ELF, EM_XGATE        ),
258   LLVM_READOBJ_ENUM_ENT(ELF, EM_C166         ),
259   LLVM_READOBJ_ENUM_ENT(ELF, EM_M16C         ),
260   LLVM_READOBJ_ENUM_ENT(ELF, EM_DSPIC30F     ),
261   LLVM_READOBJ_ENUM_ENT(ELF, EM_CE           ),
262   LLVM_READOBJ_ENUM_ENT(ELF, EM_M32C         ),
263   LLVM_READOBJ_ENUM_ENT(ELF, EM_TSK3000      ),
264   LLVM_READOBJ_ENUM_ENT(ELF, EM_RS08         ),
265   LLVM_READOBJ_ENUM_ENT(ELF, EM_SHARC        ),
266   LLVM_READOBJ_ENUM_ENT(ELF, EM_ECOG2        ),
267   LLVM_READOBJ_ENUM_ENT(ELF, EM_SCORE7       ),
268   LLVM_READOBJ_ENUM_ENT(ELF, EM_DSP24        ),
269   LLVM_READOBJ_ENUM_ENT(ELF, EM_VIDEOCORE3   ),
270   LLVM_READOBJ_ENUM_ENT(ELF, EM_LATTICEMICO32),
271   LLVM_READOBJ_ENUM_ENT(ELF, EM_SE_C17       ),
272   LLVM_READOBJ_ENUM_ENT(ELF, EM_TI_C6000     ),
273   LLVM_READOBJ_ENUM_ENT(ELF, EM_TI_C2000     ),
274   LLVM_READOBJ_ENUM_ENT(ELF, EM_TI_C5500     ),
275   LLVM_READOBJ_ENUM_ENT(ELF, EM_MMDSP_PLUS   ),
276   LLVM_READOBJ_ENUM_ENT(ELF, EM_CYPRESS_M8C  ),
277   LLVM_READOBJ_ENUM_ENT(ELF, EM_R32C         ),
278   LLVM_READOBJ_ENUM_ENT(ELF, EM_TRIMEDIA     ),
279   LLVM_READOBJ_ENUM_ENT(ELF, EM_HEXAGON      ),
280   LLVM_READOBJ_ENUM_ENT(ELF, EM_8051         ),
281   LLVM_READOBJ_ENUM_ENT(ELF, EM_STXP7X       ),
282   LLVM_READOBJ_ENUM_ENT(ELF, EM_NDS32        ),
283   LLVM_READOBJ_ENUM_ENT(ELF, EM_ECOG1        ),
284   LLVM_READOBJ_ENUM_ENT(ELF, EM_ECOG1X       ),
285   LLVM_READOBJ_ENUM_ENT(ELF, EM_MAXQ30       ),
286   LLVM_READOBJ_ENUM_ENT(ELF, EM_XIMO16       ),
287   LLVM_READOBJ_ENUM_ENT(ELF, EM_MANIK        ),
288   LLVM_READOBJ_ENUM_ENT(ELF, EM_CRAYNV2      ),
289   LLVM_READOBJ_ENUM_ENT(ELF, EM_RX           ),
290   LLVM_READOBJ_ENUM_ENT(ELF, EM_METAG        ),
291   LLVM_READOBJ_ENUM_ENT(ELF, EM_MCST_ELBRUS  ),
292   LLVM_READOBJ_ENUM_ENT(ELF, EM_ECOG16       ),
293   LLVM_READOBJ_ENUM_ENT(ELF, EM_CR16         ),
294   LLVM_READOBJ_ENUM_ENT(ELF, EM_ETPU         ),
295   LLVM_READOBJ_ENUM_ENT(ELF, EM_SLE9X        ),
296   LLVM_READOBJ_ENUM_ENT(ELF, EM_L10M         ),
297   LLVM_READOBJ_ENUM_ENT(ELF, EM_K10M         ),
298   LLVM_READOBJ_ENUM_ENT(ELF, EM_AARCH64      ),
299   LLVM_READOBJ_ENUM_ENT(ELF, EM_AVR32        ),
300   LLVM_READOBJ_ENUM_ENT(ELF, EM_STM8         ),
301   LLVM_READOBJ_ENUM_ENT(ELF, EM_TILE64       ),
302   LLVM_READOBJ_ENUM_ENT(ELF, EM_TILEPRO      ),
303   LLVM_READOBJ_ENUM_ENT(ELF, EM_CUDA         ),
304   LLVM_READOBJ_ENUM_ENT(ELF, EM_TILEGX       ),
305   LLVM_READOBJ_ENUM_ENT(ELF, EM_CLOUDSHIELD  ),
306   LLVM_READOBJ_ENUM_ENT(ELF, EM_COREA_1ST    ),
307   LLVM_READOBJ_ENUM_ENT(ELF, EM_COREA_2ND    ),
308   LLVM_READOBJ_ENUM_ENT(ELF, EM_ARC_COMPACT2 ),
309   LLVM_READOBJ_ENUM_ENT(ELF, EM_OPEN8        ),
310   LLVM_READOBJ_ENUM_ENT(ELF, EM_RL78         ),
311   LLVM_READOBJ_ENUM_ENT(ELF, EM_VIDEOCORE5   ),
312   LLVM_READOBJ_ENUM_ENT(ELF, EM_78KOR        ),
313   LLVM_READOBJ_ENUM_ENT(ELF, EM_56800EX      )
314 };
315 
316 static const EnumEntry<unsigned> ElfSymbolBindings[] = {
317   { "Local",  ELF::STB_LOCAL  },
318   { "Global", ELF::STB_GLOBAL },
319   { "Weak",   ELF::STB_WEAK   }
320 };
321 
322 static const EnumEntry<unsigned> ElfSymbolTypes[] = {
323   { "None",      ELF::STT_NOTYPE    },
324   { "Object",    ELF::STT_OBJECT    },
325   { "Function",  ELF::STT_FUNC      },
326   { "Section",   ELF::STT_SECTION   },
327   { "File",      ELF::STT_FILE      },
328   { "Common",    ELF::STT_COMMON    },
329   { "TLS",       ELF::STT_TLS       },
330   { "GNU_IFunc", ELF::STT_GNU_IFUNC }
331 };
332 
333 static const char *getElfSectionType(unsigned Arch, unsigned Type) {
334   switch (Arch) {
335   case ELF::EM_ARM:
336     switch (Type) {
337     LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_EXIDX);
338     LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_PREEMPTMAP);
339     LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_ATTRIBUTES);
340     LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_DEBUGOVERLAY);
341     LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_OVERLAYSECTION);
342     }
343   case ELF::EM_HEXAGON:
344     switch (Type) { LLVM_READOBJ_ENUM_CASE(ELF, SHT_HEX_ORDERED); }
345   case ELF::EM_X86_64:
346     switch (Type) { LLVM_READOBJ_ENUM_CASE(ELF, SHT_X86_64_UNWIND); }
347   case ELF::EM_MIPS:
348   case ELF::EM_MIPS_RS3_LE:
349     switch (Type) {
350     LLVM_READOBJ_ENUM_CASE(ELF, SHT_MIPS_REGINFO);
351     LLVM_READOBJ_ENUM_CASE(ELF, SHT_MIPS_OPTIONS);
352     }
353   }
354 
355   switch (Type) {
356   LLVM_READOBJ_ENUM_CASE(ELF, SHT_NULL              );
357   LLVM_READOBJ_ENUM_CASE(ELF, SHT_PROGBITS          );
358   LLVM_READOBJ_ENUM_CASE(ELF, SHT_SYMTAB            );
359   LLVM_READOBJ_ENUM_CASE(ELF, SHT_STRTAB            );
360   LLVM_READOBJ_ENUM_CASE(ELF, SHT_RELA              );
361   LLVM_READOBJ_ENUM_CASE(ELF, SHT_HASH              );
362   LLVM_READOBJ_ENUM_CASE(ELF, SHT_DYNAMIC           );
363   LLVM_READOBJ_ENUM_CASE(ELF, SHT_NOTE              );
364   LLVM_READOBJ_ENUM_CASE(ELF, SHT_NOBITS            );
365   LLVM_READOBJ_ENUM_CASE(ELF, SHT_REL               );
366   LLVM_READOBJ_ENUM_CASE(ELF, SHT_SHLIB             );
367   LLVM_READOBJ_ENUM_CASE(ELF, SHT_DYNSYM            );
368   LLVM_READOBJ_ENUM_CASE(ELF, SHT_INIT_ARRAY        );
369   LLVM_READOBJ_ENUM_CASE(ELF, SHT_FINI_ARRAY        );
370   LLVM_READOBJ_ENUM_CASE(ELF, SHT_PREINIT_ARRAY     );
371   LLVM_READOBJ_ENUM_CASE(ELF, SHT_GROUP             );
372   LLVM_READOBJ_ENUM_CASE(ELF, SHT_SYMTAB_SHNDX      );
373   LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_ATTRIBUTES    );
374   LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_HASH          );
375   LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_verdef        );
376   LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_verneed       );
377   LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_versym        );
378   default: return "";
379   }
380 }
381 
382 static const EnumEntry<unsigned> ElfSectionFlags[] = {
383   LLVM_READOBJ_ENUM_ENT(ELF, SHF_WRITE           ),
384   LLVM_READOBJ_ENUM_ENT(ELF, SHF_ALLOC           ),
385   LLVM_READOBJ_ENUM_ENT(ELF, SHF_EXCLUDE         ),
386   LLVM_READOBJ_ENUM_ENT(ELF, SHF_EXECINSTR       ),
387   LLVM_READOBJ_ENUM_ENT(ELF, SHF_MERGE           ),
388   LLVM_READOBJ_ENUM_ENT(ELF, SHF_STRINGS         ),
389   LLVM_READOBJ_ENUM_ENT(ELF, SHF_INFO_LINK       ),
390   LLVM_READOBJ_ENUM_ENT(ELF, SHF_LINK_ORDER      ),
391   LLVM_READOBJ_ENUM_ENT(ELF, SHF_OS_NONCONFORMING),
392   LLVM_READOBJ_ENUM_ENT(ELF, SHF_GROUP           ),
393   LLVM_READOBJ_ENUM_ENT(ELF, SHF_TLS             ),
394   LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_CP_SECTION),
395   LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_DP_SECTION),
396   LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NOSTRIP    )
397 };
398 
399 static const char *getElfSegmentType(unsigned Arch, unsigned Type) {
400   // Check potentially overlapped processor-specific
401   // program header type.
402   switch (Arch) {
403   case ELF::EM_ARM:
404     switch (Type) {
405     LLVM_READOBJ_ENUM_CASE(ELF, PT_ARM_EXIDX);
406     }
407   case ELF::EM_MIPS:
408   case ELF::EM_MIPS_RS3_LE:
409     switch (Type) {
410     LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_REGINFO);
411     LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_RTPROC);
412     LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_OPTIONS);
413     }
414   }
415 
416   switch (Type) {
417   LLVM_READOBJ_ENUM_CASE(ELF, PT_NULL   );
418   LLVM_READOBJ_ENUM_CASE(ELF, PT_LOAD   );
419   LLVM_READOBJ_ENUM_CASE(ELF, PT_DYNAMIC);
420   LLVM_READOBJ_ENUM_CASE(ELF, PT_INTERP );
421   LLVM_READOBJ_ENUM_CASE(ELF, PT_NOTE   );
422   LLVM_READOBJ_ENUM_CASE(ELF, PT_SHLIB  );
423   LLVM_READOBJ_ENUM_CASE(ELF, PT_PHDR   );
424   LLVM_READOBJ_ENUM_CASE(ELF, PT_TLS    );
425 
426   LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_EH_FRAME);
427   LLVM_READOBJ_ENUM_CASE(ELF, PT_SUNW_UNWIND);
428 
429   LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_STACK);
430   LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_RELRO);
431   default: return "";
432   }
433 }
434 
435 static const EnumEntry<unsigned> ElfSegmentFlags[] = {
436   LLVM_READOBJ_ENUM_ENT(ELF, PF_X),
437   LLVM_READOBJ_ENUM_ENT(ELF, PF_W),
438   LLVM_READOBJ_ENUM_ENT(ELF, PF_R)
439 };
440 
441 template<class ELFT>
442 void ELFDumper<ELFT>::printFileHeaders() {
443   const typename ELFO::Elf_Ehdr *Header = Obj->getHeader();
444 
445   {
446     DictScope D(W, "ElfHeader");
447     {
448       DictScope D(W, "Ident");
449       W.printBinary("Magic", makeArrayRef(Header->e_ident).slice(ELF::EI_MAG0,
450                                                                  4));
451       W.printEnum  ("Class", Header->e_ident[ELF::EI_CLASS],
452                       makeArrayRef(ElfClass));
453       W.printEnum  ("DataEncoding", Header->e_ident[ELF::EI_DATA],
454                       makeArrayRef(ElfDataEncoding));
455       W.printNumber("FileVersion", Header->e_ident[ELF::EI_VERSION]);
456       W.printEnum  ("OS/ABI", Header->e_ident[ELF::EI_OSABI],
457                       makeArrayRef(ElfOSABI));
458       W.printNumber("ABIVersion", Header->e_ident[ELF::EI_ABIVERSION]);
459       W.printBinary("Unused", makeArrayRef(Header->e_ident).slice(ELF::EI_PAD));
460     }
461 
462     W.printEnum  ("Type", Header->e_type, makeArrayRef(ElfObjectFileType));
463     W.printEnum  ("Machine", Header->e_machine, makeArrayRef(ElfMachineType));
464     W.printNumber("Version", Header->e_version);
465     W.printHex   ("Entry", Header->e_entry);
466     W.printHex   ("ProgramHeaderOffset", Header->e_phoff);
467     W.printHex   ("SectionHeaderOffset", Header->e_shoff);
468     W.printFlags ("Flags", Header->e_flags);
469     W.printNumber("HeaderSize", Header->e_ehsize);
470     W.printNumber("ProgramHeaderEntrySize", Header->e_phentsize);
471     W.printNumber("ProgramHeaderCount", Header->e_phnum);
472     W.printNumber("SectionHeaderEntrySize", Header->e_shentsize);
473     W.printNumber("SectionHeaderCount", Header->e_shnum);
474     W.printNumber("StringTableSectionIndex", Header->e_shstrndx);
475   }
476 }
477 
478 template<class ELFT>
479 void ELFDumper<ELFT>::printSections() {
480   ListScope SectionsD(W, "Sections");
481 
482   int SectionIndex = -1;
483   for (typename ELFO::Elf_Shdr_Iter SecI = Obj->begin_sections(),
484                                     SecE = Obj->end_sections();
485        SecI != SecE; ++SecI) {
486     ++SectionIndex;
487 
488     const Elf_Shdr *Section = &*SecI;
489     StringRef Name = errorOrDefault(Obj->getSectionName(Section));
490 
491     DictScope SectionD(W, "Section");
492     W.printNumber("Index", SectionIndex);
493     W.printNumber("Name", Name, Section->sh_name);
494     W.printHex("Type",
495                getElfSectionType(Obj->getHeader()->e_machine, Section->sh_type),
496                Section->sh_type);
497     W.printFlags ("Flags", Section->sh_flags, makeArrayRef(ElfSectionFlags));
498     W.printHex   ("Address", Section->sh_addr);
499     W.printHex   ("Offset", Section->sh_offset);
500     W.printNumber("Size", Section->sh_size);
501     W.printNumber("Link", Section->sh_link);
502     W.printNumber("Info", Section->sh_info);
503     W.printNumber("AddressAlignment", Section->sh_addralign);
504     W.printNumber("EntrySize", Section->sh_entsize);
505 
506     if (opts::SectionRelocations) {
507       ListScope D(W, "Relocations");
508       printRelocations(Section);
509     }
510 
511     if (opts::SectionSymbols) {
512       ListScope D(W, "Symbols");
513       for (typename ELFO::Elf_Sym_Iter SymI = Obj->begin_symbols(),
514                                        SymE = Obj->end_symbols();
515            SymI != SymE; ++SymI) {
516         if (Obj->getSection(&*SymI) == Section)
517           printSymbol(SymI);
518       }
519     }
520 
521     if (opts::SectionData) {
522       ArrayRef<uint8_t> Data = errorOrDefault(Obj->getSectionContents(Section));
523       W.printBinaryBlock("SectionData",
524                          StringRef((const char *)Data.data(), Data.size()));
525     }
526   }
527 }
528 
529 template<class ELFT>
530 void ELFDumper<ELFT>::printRelocations() {
531   ListScope D(W, "Relocations");
532 
533   int SectionNumber = -1;
534   for (typename ELFO::Elf_Shdr_Iter SecI = Obj->begin_sections(),
535                                     SecE = Obj->end_sections();
536        SecI != SecE; ++SecI) {
537     ++SectionNumber;
538 
539     if (SecI->sh_type != ELF::SHT_REL && SecI->sh_type != ELF::SHT_RELA)
540       continue;
541 
542     StringRef Name = errorOrDefault(Obj->getSectionName(&*SecI));
543 
544     W.startLine() << "Section (" << SectionNumber << ") " << Name << " {\n";
545     W.indent();
546 
547     printRelocations(&*SecI);
548 
549     W.unindent();
550     W.startLine() << "}\n";
551   }
552 }
553 
554 template <class ELFT>
555 void ELFDumper<ELFT>::printRelocations(const Elf_Shdr *Sec) {
556   switch (Sec->sh_type) {
557   case ELF::SHT_REL:
558     for (typename ELFO::Elf_Rel_Iter RI = Obj->begin_rel(Sec),
559                                      RE = Obj->end_rel(Sec);
560          RI != RE; ++RI) {
561       typename ELFO::Elf_Rela Rela;
562       Rela.r_offset = RI->r_offset;
563       Rela.r_info = RI->r_info;
564       Rela.r_addend = 0;
565       printRelocation(Sec, Rela);
566     }
567     break;
568   case ELF::SHT_RELA:
569     for (typename ELFO::Elf_Rela_Iter RI = Obj->begin_rela(Sec),
570                                       RE = Obj->end_rela(Sec);
571          RI != RE; ++RI) {
572       printRelocation(Sec, *RI);
573     }
574     break;
575   }
576 }
577 
578 template <class ELFT>
579 void ELFDumper<ELFT>::printRelocation(const Elf_Shdr *Sec,
580                                       typename ELFO::Elf_Rela Rel) {
581   SmallString<32> RelocName;
582   Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName);
583   StringRef SymbolName;
584   std::pair<const Elf_Shdr *, const Elf_Sym *> Sym =
585       Obj->getRelocationSymbol(Sec, &Rel);
586   if (Sym.first)
587     SymbolName = errorOrDefault(Obj->getSymbolName(Sym.first, Sym.second));
588 
589   if (opts::ExpandRelocs) {
590     DictScope Group(W, "Relocation");
591     W.printHex("Offset", Rel.r_offset);
592     W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL()));
593     W.printString("Symbol", SymbolName.size() > 0 ? SymbolName : "-");
594     W.printHex("Addend", Rel.r_addend);
595   } else {
596     raw_ostream& OS = W.startLine();
597     OS << W.hex(Rel.r_offset)
598        << " " << RelocName
599        << " " << (SymbolName.size() > 0 ? SymbolName : "-")
600        << " " << W.hex(Rel.r_addend)
601        << "\n";
602   }
603 }
604 
605 template<class ELFT>
606 void ELFDumper<ELFT>::printSymbols() {
607   ListScope Group(W, "Symbols");
608   for (typename ELFO::Elf_Sym_Iter SymI = Obj->begin_symbols(),
609                                    SymE = Obj->end_symbols();
610        SymI != SymE; ++SymI) {
611     printSymbol(SymI);
612   }
613 }
614 
615 template<class ELFT>
616 void ELFDumper<ELFT>::printDynamicSymbols() {
617   ListScope Group(W, "DynamicSymbols");
618 
619   for (typename ELFO::Elf_Sym_Iter SymI = Obj->begin_dynamic_symbols(),
620                                    SymE = Obj->end_dynamic_symbols();
621        SymI != SymE; ++SymI) {
622     printSymbol(SymI);
623   }
624 }
625 
626 template <class ELFT>
627 void ELFDumper<ELFT>::printSymbol(typename ELFO::Elf_Sym_Iter Symbol) {
628   StringRef SymbolName = errorOrDefault(Obj->getSymbolName(Symbol));
629   const Elf_Shdr *Sec = Obj->getSection(&*Symbol);
630   StringRef SectionName = Sec ? errorOrDefault(Obj->getSectionName(Sec)) : "";
631   std::string FullSymbolName(SymbolName);
632   if (Symbol.isDynamic()) {
633     bool IsDefault;
634     ErrorOr<StringRef> Version = Obj->getSymbolVersion(0, &*Symbol, IsDefault);
635     if (Version) {
636       FullSymbolName += (IsDefault ? "@@" : "@");
637       FullSymbolName += *Version;
638     } else
639       error(Version.getError());
640   }
641 
642   DictScope D(W, "Symbol");
643   W.printNumber("Name", FullSymbolName, Symbol->st_name);
644   W.printHex   ("Value", Symbol->st_value);
645   W.printNumber("Size", Symbol->st_size);
646   W.printEnum  ("Binding", Symbol->getBinding(),
647                   makeArrayRef(ElfSymbolBindings));
648   W.printEnum  ("Type", Symbol->getType(), makeArrayRef(ElfSymbolTypes));
649   W.printNumber("Other", Symbol->st_other);
650   W.printHex   ("Section", SectionName, Symbol->st_shndx);
651 }
652 
653 #define LLVM_READOBJ_TYPE_CASE(name) \
654   case DT_##name: return #name
655 
656 static const char *getTypeString(uint64_t Type) {
657   switch (Type) {
658   LLVM_READOBJ_TYPE_CASE(BIND_NOW);
659   LLVM_READOBJ_TYPE_CASE(DEBUG);
660   LLVM_READOBJ_TYPE_CASE(FINI);
661   LLVM_READOBJ_TYPE_CASE(FINI_ARRAY);
662   LLVM_READOBJ_TYPE_CASE(FINI_ARRAYSZ);
663   LLVM_READOBJ_TYPE_CASE(FLAGS);
664   LLVM_READOBJ_TYPE_CASE(HASH);
665   LLVM_READOBJ_TYPE_CASE(INIT);
666   LLVM_READOBJ_TYPE_CASE(INIT_ARRAY);
667   LLVM_READOBJ_TYPE_CASE(INIT_ARRAYSZ);
668   LLVM_READOBJ_TYPE_CASE(PREINIT_ARRAY);
669   LLVM_READOBJ_TYPE_CASE(PREINIT_ARRAYSZ);
670   LLVM_READOBJ_TYPE_CASE(JMPREL);
671   LLVM_READOBJ_TYPE_CASE(NEEDED);
672   LLVM_READOBJ_TYPE_CASE(NULL);
673   LLVM_READOBJ_TYPE_CASE(PLTGOT);
674   LLVM_READOBJ_TYPE_CASE(PLTREL);
675   LLVM_READOBJ_TYPE_CASE(PLTRELSZ);
676   LLVM_READOBJ_TYPE_CASE(REL);
677   LLVM_READOBJ_TYPE_CASE(RELA);
678   LLVM_READOBJ_TYPE_CASE(RELENT);
679   LLVM_READOBJ_TYPE_CASE(RELSZ);
680   LLVM_READOBJ_TYPE_CASE(RELAENT);
681   LLVM_READOBJ_TYPE_CASE(RELASZ);
682   LLVM_READOBJ_TYPE_CASE(RPATH);
683   LLVM_READOBJ_TYPE_CASE(RUNPATH);
684   LLVM_READOBJ_TYPE_CASE(SONAME);
685   LLVM_READOBJ_TYPE_CASE(STRSZ);
686   LLVM_READOBJ_TYPE_CASE(STRTAB);
687   LLVM_READOBJ_TYPE_CASE(SYMBOLIC);
688   LLVM_READOBJ_TYPE_CASE(SYMENT);
689   LLVM_READOBJ_TYPE_CASE(SYMTAB);
690   LLVM_READOBJ_TYPE_CASE(TEXTREL);
691   LLVM_READOBJ_TYPE_CASE(VERNEED);
692   LLVM_READOBJ_TYPE_CASE(VERNEEDNUM);
693   LLVM_READOBJ_TYPE_CASE(VERSYM);
694   LLVM_READOBJ_TYPE_CASE(MIPS_RLD_VERSION);
695   LLVM_READOBJ_TYPE_CASE(MIPS_FLAGS);
696   LLVM_READOBJ_TYPE_CASE(MIPS_BASE_ADDRESS);
697   LLVM_READOBJ_TYPE_CASE(MIPS_LOCAL_GOTNO);
698   LLVM_READOBJ_TYPE_CASE(MIPS_SYMTABNO);
699   LLVM_READOBJ_TYPE_CASE(MIPS_UNREFEXTNO);
700   LLVM_READOBJ_TYPE_CASE(MIPS_GOTSYM);
701   LLVM_READOBJ_TYPE_CASE(MIPS_RLD_MAP);
702   LLVM_READOBJ_TYPE_CASE(MIPS_PLTGOT);
703   default: return "unknown";
704   }
705 }
706 
707 #undef LLVM_READOBJ_TYPE_CASE
708 
709 template <class ELFT>
710 static void printValue(const ELFFile<ELFT> *O, uint64_t Type, uint64_t Value,
711                        bool Is64, raw_ostream &OS) {
712   switch (Type) {
713   case DT_PLTREL:
714     if (Value == DT_REL) {
715       OS << "REL";
716       break;
717     } else if (Value == DT_RELA) {
718       OS << "RELA";
719       break;
720     }
721   // Fallthrough.
722   case DT_PLTGOT:
723   case DT_HASH:
724   case DT_STRTAB:
725   case DT_SYMTAB:
726   case DT_RELA:
727   case DT_INIT:
728   case DT_FINI:
729   case DT_REL:
730   case DT_JMPREL:
731   case DT_INIT_ARRAY:
732   case DT_FINI_ARRAY:
733   case DT_PREINIT_ARRAY:
734   case DT_DEBUG:
735   case DT_VERNEED:
736   case DT_VERSYM:
737   case DT_NULL:
738   case DT_MIPS_FLAGS:
739   case DT_MIPS_BASE_ADDRESS:
740   case DT_MIPS_GOTSYM:
741   case DT_MIPS_RLD_MAP:
742   case DT_MIPS_PLTGOT:
743     OS << format("0x%" PRIX64, Value);
744     break;
745   case DT_VERNEEDNUM:
746   case DT_MIPS_RLD_VERSION:
747   case DT_MIPS_LOCAL_GOTNO:
748   case DT_MIPS_SYMTABNO:
749   case DT_MIPS_UNREFEXTNO:
750     OS << Value;
751     break;
752   case DT_PLTRELSZ:
753   case DT_RELASZ:
754   case DT_RELAENT:
755   case DT_STRSZ:
756   case DT_SYMENT:
757   case DT_RELSZ:
758   case DT_RELENT:
759   case DT_INIT_ARRAYSZ:
760   case DT_FINI_ARRAYSZ:
761   case DT_PREINIT_ARRAYSZ:
762     OS << Value << " (bytes)";
763     break;
764   case DT_NEEDED:
765     OS << "SharedLibrary (" << O->getDynamicString(Value) << ")";
766     break;
767   case DT_SONAME:
768     OS << "LibrarySoname (" << O->getDynamicString(Value) << ")";
769     break;
770   case DT_RPATH:
771   case DT_RUNPATH:
772     OS << O->getDynamicString(Value);
773     break;
774   }
775 }
776 
777 template<class ELFT>
778 void ELFDumper<ELFT>::printUnwindInfo() {
779   W.startLine() << "UnwindInfo not implemented.\n";
780 }
781 
782 namespace {
783 template <>
784 void ELFDumper<ELFType<support::little, 2, false> >::printUnwindInfo() {
785   const unsigned Machine = Obj->getHeader()->e_machine;
786   if (Machine == EM_ARM) {
787     ARM::EHABI::PrinterContext<ELFType<support::little, 2, false> > Ctx(W, Obj);
788     return Ctx.PrintUnwindInformation();
789   }
790   W.startLine() << "UnwindInfo not implemented.\n";
791 }
792 }
793 
794 template<class ELFT>
795 void ELFDumper<ELFT>::printDynamicTable() {
796   typedef typename ELFO::Elf_Dyn_Iter EDI;
797   EDI Start = Obj->begin_dynamic_table(), End = Obj->end_dynamic_table(true);
798 
799   if (Start == End)
800     return;
801 
802   ptrdiff_t Total = std::distance(Start, End);
803   raw_ostream &OS = W.getOStream();
804   W.startLine() << "DynamicSection [ (" << Total << " entries)\n";
805 
806   bool Is64 = ELFT::Is64Bits;
807 
808   W.startLine()
809      << "  Tag" << (Is64 ? "                " : "        ") << "Type"
810      << "                 " << "Name/Value\n";
811   for (; Start != End; ++Start) {
812     W.startLine()
813        << "  "
814        << format(Is64 ? "0x%016" PRIX64 : "0x%08" PRIX64, Start->getTag())
815        << " " << format("%-21s", getTypeString(Start->getTag()));
816     printValue(Obj, Start->getTag(), Start->getVal(), Is64, OS);
817     OS << "\n";
818   }
819 
820   W.startLine() << "]\n";
821 }
822 
823 template<class ELFT>
824 void ELFDumper<ELFT>::printNeededLibraries() {
825   ListScope D(W, "NeededLibraries");
826 
827   typedef std::vector<StringRef> LibsTy;
828   LibsTy Libs;
829 
830   for (typename ELFO::Elf_Dyn_Iter DynI = Obj->begin_dynamic_table(),
831                                    DynE = Obj->end_dynamic_table();
832        DynI != DynE; ++DynI)
833     if (DynI->d_tag == ELF::DT_NEEDED)
834       Libs.push_back(Obj->getDynamicString(DynI->d_un.d_val));
835 
836   std::stable_sort(Libs.begin(), Libs.end());
837 
838   for (LibsTy::const_iterator I = Libs.begin(), E = Libs.end(); I != E; ++I) {
839     outs() << "  " << *I << "\n";
840   }
841 }
842 
843 template<class ELFT>
844 void ELFDumper<ELFT>::printProgramHeaders() {
845   ListScope L(W, "ProgramHeaders");
846 
847   for (typename ELFO::Elf_Phdr_Iter PI = Obj->begin_program_headers(),
848                                     PE = Obj->end_program_headers();
849                                     PI != PE; ++PI) {
850     DictScope P(W, "ProgramHeader");
851     W.printHex   ("Type",
852                   getElfSegmentType(Obj->getHeader()->e_machine, PI->p_type),
853                   PI->p_type);
854     W.printHex   ("Offset", PI->p_offset);
855     W.printHex   ("VirtualAddress", PI->p_vaddr);
856     W.printHex   ("PhysicalAddress", PI->p_paddr);
857     W.printNumber("FileSize", PI->p_filesz);
858     W.printNumber("MemSize", PI->p_memsz);
859     W.printFlags ("Flags", PI->p_flags, makeArrayRef(ElfSegmentFlags));
860     W.printNumber("Alignment", PI->p_align);
861   }
862 }
863 
864 template <class ELFT>
865 void ELFDumper<ELFT>::printAttributes() {
866   W.startLine() << "Attributes not implemented.\n";
867 }
868 
869 namespace {
870 template <>
871 void ELFDumper<ELFType<support::little, 2, false> >::printAttributes() {
872   if (Obj->getHeader()->e_machine != EM_ARM) {
873     W.startLine() << "Attributes not implemented.\n";
874     return;
875   }
876 
877   DictScope BA(W, "BuildAttributes");
878   for (ELFO::Elf_Shdr_Iter SI = Obj->begin_sections(), SE = Obj->end_sections();
879        SI != SE; ++SI) {
880     if (SI->sh_type != ELF::SHT_ARM_ATTRIBUTES)
881       continue;
882 
883     ErrorOr<ArrayRef<uint8_t> > Contents = Obj->getSectionContents(&(*SI));
884     if (!Contents)
885       continue;
886 
887     if ((*Contents)[0] != ARMBuildAttrs::Format_Version) {
888       errs() << "unrecognised FormatVersion: 0x" << utohexstr((*Contents)[0])
889              << '\n';
890       continue;
891     }
892 
893     W.printHex("FormatVersion", (*Contents)[0]);
894     if (Contents->size() == 1)
895       continue;
896 
897     ARMAttributeParser(W).Parse(*Contents);
898   }
899 }
900 }
901 
902