ELFDumper.cpp revision cf3b55ab18b6d0f5b658e746b57ec3cf193d5688 
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 "Error.h"
17#include "ObjDumper.h"
18#include "StreamWriter.h"
19
20#include "llvm/ADT/SmallString.h"
21#include "llvm/Object/ELF.h"
22#include "llvm/Support/Compiler.h"
23#include "llvm/Support/Format.h"
24#include "llvm/Support/MathExtras.h"
25#include "llvm/Support/raw_ostream.h"
26
27using namespace llvm;
28using namespace llvm::object;
29using namespace ELF;
30
31
32#define LLVM_READOBJ_ENUM_CASE(ns, enum) \
33  case ns::enum: return #enum;
34
35namespace {
36
37template<typename ELFT>
38class ELFDumper : public ObjDumper {
39public:
40  ELFDumper(const ELFObjectFile<ELFT> *Obj, StreamWriter& Writer)
41    : ObjDumper(Writer)
42    , Obj(Obj) { }
43
44  virtual void printFileHeaders() LLVM_OVERRIDE;
45  virtual void printSections() LLVM_OVERRIDE;
46  virtual void printRelocations() LLVM_OVERRIDE;
47  virtual void printSymbols() LLVM_OVERRIDE;
48  virtual void printDynamicSymbols() LLVM_OVERRIDE;
49  virtual void printUnwindInfo() LLVM_OVERRIDE;
50
51  virtual void printDynamicTable() LLVM_OVERRIDE;
52  virtual void printNeededLibraries() LLVM_OVERRIDE;
53  virtual void printProgramHeaders() LLVM_OVERRIDE;
54
55private:
56  typedef ELFObjectFile<ELFT> ELFO;
57  typedef typename ELFO::Elf_Shdr Elf_Shdr;
58  typedef typename ELFO::Elf_Sym Elf_Sym;
59
60  void printSymbol(symbol_iterator SymI, bool IsDynamic = false);
61
62  void printRelocation(section_iterator SecI, relocation_iterator RelI);
63
64  const ELFO *Obj;
65};
66
67} // namespace
68
69
70namespace llvm {
71
72error_code createELFDumper(const object::ObjectFile *Obj,
73                           StreamWriter& Writer,
74                           OwningPtr<ObjDumper> &Result) {
75  typedef ELFType<support::little, 4, false> Little32ELF;
76  typedef ELFType<support::big,    4, false> Big32ELF;
77  typedef ELFType<support::little, 4, true > Little64ELF;
78  typedef ELFType<support::big,    8, true > Big64ELF;
79
80  typedef ELFObjectFile<Little32ELF> LittleELF32Obj;
81  typedef ELFObjectFile<Big32ELF   > BigELF32Obj;
82  typedef ELFObjectFile<Little64ELF> LittleELF64Obj;
83  typedef ELFObjectFile<Big64ELF   > BigELF64Obj;
84
85  // Little-endian 32-bit
86  if (const LittleELF32Obj *ELFObj = dyn_cast<LittleELF32Obj>(Obj)) {
87    Result.reset(new ELFDumper<Little32ELF>(ELFObj, Writer));
88    return readobj_error::success;
89  }
90
91  // Big-endian 32-bit
92  if (const BigELF32Obj *ELFObj = dyn_cast<BigELF32Obj>(Obj)) {
93    Result.reset(new ELFDumper<Big32ELF>(ELFObj, Writer));
94    return readobj_error::success;
95  }
96
97  // Little-endian 64-bit
98  if (const LittleELF64Obj *ELFObj = dyn_cast<LittleELF64Obj>(Obj)) {
99    Result.reset(new ELFDumper<Little64ELF>(ELFObj, Writer));
100    return readobj_error::success;
101  }
102
103  // Big-endian 64-bit
104  if (const BigELF64Obj *ELFObj = dyn_cast<BigELF64Obj>(Obj)) {
105    Result.reset(new ELFDumper<Big64ELF>(ELFObj, Writer));
106    return readobj_error::success;
107  }
108
109  return readobj_error::unsupported_obj_file_format;
110}
111
112} // namespace llvm
113
114
115static const EnumEntry<unsigned> ElfClass[] = {
116  { "None",   ELF::ELFCLASSNONE },
117  { "32-bit", ELF::ELFCLASS32   },
118  { "64-bit", ELF::ELFCLASS64   },
119};
120
121static const EnumEntry<unsigned> ElfDataEncoding[] = {
122  { "None",         ELF::ELFDATANONE },
123  { "LittleEndian", ELF::ELFDATA2LSB },
124  { "BigEndian",    ELF::ELFDATA2MSB },
125};
126
127static 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
135static 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
158static 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_MICROBLAZE   ),
304  LLVM_READOBJ_ENUM_ENT(ELF, EM_CUDA         ),
305  LLVM_READOBJ_ENUM_ENT(ELF, EM_TILEGX       ),
306  LLVM_READOBJ_ENUM_ENT(ELF, EM_CLOUDSHIELD  ),
307  LLVM_READOBJ_ENUM_ENT(ELF, EM_COREA_1ST    ),
308  LLVM_READOBJ_ENUM_ENT(ELF, EM_COREA_2ND    ),
309  LLVM_READOBJ_ENUM_ENT(ELF, EM_ARC_COMPACT2 ),
310  LLVM_READOBJ_ENUM_ENT(ELF, EM_OPEN8        ),
311  LLVM_READOBJ_ENUM_ENT(ELF, EM_RL78         ),
312  LLVM_READOBJ_ENUM_ENT(ELF, EM_VIDEOCORE5   ),
313  LLVM_READOBJ_ENUM_ENT(ELF, EM_78KOR        ),
314  LLVM_READOBJ_ENUM_ENT(ELF, EM_56800EX      ),
315  LLVM_READOBJ_ENUM_ENT(ELF, EM_MBLAZE       )
316};
317
318static const EnumEntry<unsigned> ElfSymbolBindings[] = {
319  { "Local",  ELF::STB_LOCAL  },
320  { "Global", ELF::STB_GLOBAL },
321  { "Weak",   ELF::STB_WEAK   }
322};
323
324static const EnumEntry<unsigned> ElfSymbolTypes[] = {
325  { "None",      ELF::STT_NOTYPE    },
326  { "Object",    ELF::STT_OBJECT    },
327  { "Function",  ELF::STT_FUNC      },
328  { "Section",   ELF::STT_SECTION   },
329  { "File",      ELF::STT_FILE      },
330  { "Common",    ELF::STT_COMMON    },
331  { "TLS",       ELF::STT_TLS       },
332  { "GNU_IFunc", ELF::STT_GNU_IFUNC }
333};
334
335static const char *getElfSectionType(unsigned Arch, unsigned Type) {
336  switch (Arch) {
337  case Triple::arm:
338    switch (Type) {
339    LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_EXIDX);
340    LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_PREEMPTMAP);
341    LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_ATTRIBUTES);
342    LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_DEBUGOVERLAY);
343    LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_OVERLAYSECTION);
344    }
345  case Triple::hexagon:
346    switch (Type) {
347    LLVM_READOBJ_ENUM_CASE(ELF, SHT_HEX_ORDERED);
348    }
349  case Triple::x86_64:
350    switch (Type) {
351    LLVM_READOBJ_ENUM_CASE(ELF, SHT_X86_64_UNWIND);
352    }
353  case Triple::mips:
354  case Triple::mipsel:
355    switch (Type) {
356    LLVM_READOBJ_ENUM_CASE(ELF, SHT_MIPS_REGINFO);
357    LLVM_READOBJ_ENUM_CASE(ELF, SHT_MIPS_OPTIONS);
358    }
359  }
360
361  switch (Type) {
362  LLVM_READOBJ_ENUM_CASE(ELF, SHT_NULL              );
363  LLVM_READOBJ_ENUM_CASE(ELF, SHT_PROGBITS          );
364  LLVM_READOBJ_ENUM_CASE(ELF, SHT_SYMTAB            );
365  LLVM_READOBJ_ENUM_CASE(ELF, SHT_STRTAB            );
366  LLVM_READOBJ_ENUM_CASE(ELF, SHT_RELA              );
367  LLVM_READOBJ_ENUM_CASE(ELF, SHT_HASH              );
368  LLVM_READOBJ_ENUM_CASE(ELF, SHT_DYNAMIC           );
369  LLVM_READOBJ_ENUM_CASE(ELF, SHT_NOTE              );
370  LLVM_READOBJ_ENUM_CASE(ELF, SHT_NOBITS            );
371  LLVM_READOBJ_ENUM_CASE(ELF, SHT_REL               );
372  LLVM_READOBJ_ENUM_CASE(ELF, SHT_SHLIB             );
373  LLVM_READOBJ_ENUM_CASE(ELF, SHT_DYNSYM            );
374  LLVM_READOBJ_ENUM_CASE(ELF, SHT_INIT_ARRAY        );
375  LLVM_READOBJ_ENUM_CASE(ELF, SHT_FINI_ARRAY        );
376  LLVM_READOBJ_ENUM_CASE(ELF, SHT_PREINIT_ARRAY     );
377  LLVM_READOBJ_ENUM_CASE(ELF, SHT_GROUP             );
378  LLVM_READOBJ_ENUM_CASE(ELF, SHT_SYMTAB_SHNDX      );
379  LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_ATTRIBUTES    );
380  LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_HASH          );
381  LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_verdef        );
382  LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_verneed       );
383  LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_versym        );
384  default: return "";
385  }
386}
387
388static const EnumEntry<unsigned> ElfSectionFlags[] = {
389  LLVM_READOBJ_ENUM_ENT(ELF, SHF_WRITE           ),
390  LLVM_READOBJ_ENUM_ENT(ELF, SHF_ALLOC           ),
391  LLVM_READOBJ_ENUM_ENT(ELF, SHF_EXECINSTR       ),
392  LLVM_READOBJ_ENUM_ENT(ELF, SHF_MERGE           ),
393  LLVM_READOBJ_ENUM_ENT(ELF, SHF_STRINGS         ),
394  LLVM_READOBJ_ENUM_ENT(ELF, SHF_INFO_LINK       ),
395  LLVM_READOBJ_ENUM_ENT(ELF, SHF_LINK_ORDER      ),
396  LLVM_READOBJ_ENUM_ENT(ELF, SHF_OS_NONCONFORMING),
397  LLVM_READOBJ_ENUM_ENT(ELF, SHF_GROUP           ),
398  LLVM_READOBJ_ENUM_ENT(ELF, SHF_TLS             ),
399  LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_CP_SECTION),
400  LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_DP_SECTION),
401  LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NOSTRIP    )
402};
403
404static const EnumEntry<unsigned> ElfSegmentTypes[] = {
405  LLVM_READOBJ_ENUM_ENT(ELF, PT_NULL   ),
406  LLVM_READOBJ_ENUM_ENT(ELF, PT_LOAD   ),
407  LLVM_READOBJ_ENUM_ENT(ELF, PT_DYNAMIC),
408  LLVM_READOBJ_ENUM_ENT(ELF, PT_INTERP ),
409  LLVM_READOBJ_ENUM_ENT(ELF, PT_NOTE   ),
410  LLVM_READOBJ_ENUM_ENT(ELF, PT_SHLIB  ),
411  LLVM_READOBJ_ENUM_ENT(ELF, PT_PHDR   ),
412  LLVM_READOBJ_ENUM_ENT(ELF, PT_TLS    ),
413
414  LLVM_READOBJ_ENUM_ENT(ELF, PT_GNU_EH_FRAME),
415  LLVM_READOBJ_ENUM_ENT(ELF, PT_SUNW_EH_FRAME),
416  LLVM_READOBJ_ENUM_ENT(ELF, PT_SUNW_UNWIND),
417
418  LLVM_READOBJ_ENUM_ENT(ELF, PT_GNU_STACK),
419  LLVM_READOBJ_ENUM_ENT(ELF, PT_GNU_RELRO),
420
421  LLVM_READOBJ_ENUM_ENT(ELF, PT_ARM_EXIDX),
422  LLVM_READOBJ_ENUM_ENT(ELF, PT_ARM_UNWIND)
423};
424
425static const EnumEntry<unsigned> ElfSegmentFlags[] = {
426  LLVM_READOBJ_ENUM_ENT(ELF, PF_X),
427  LLVM_READOBJ_ENUM_ENT(ELF, PF_W),
428  LLVM_READOBJ_ENUM_ENT(ELF, PF_R)
429};
430
431
432template<class ELFT>
433void ELFDumper<ELFT>::printFileHeaders() {
434  error_code EC;
435
436  const typename ELFO::Elf_Ehdr *Header = Obj->getElfHeader();
437
438  {
439    DictScope D(W, "ElfHeader");
440    {
441      DictScope D(W, "Ident");
442      W.printBinary("Magic", makeArrayRef(Header->e_ident).slice(ELF::EI_MAG0,
443                                                                 4));
444      W.printEnum  ("Class", Header->e_ident[ELF::EI_CLASS],
445                      makeArrayRef(ElfClass));
446      W.printEnum  ("DataEncoding", Header->e_ident[ELF::EI_DATA],
447                      makeArrayRef(ElfDataEncoding));
448      W.printNumber("FileVersion", Header->e_ident[ELF::EI_VERSION]);
449      W.printEnum  ("OS/ABI", Header->e_ident[ELF::EI_OSABI],
450                      makeArrayRef(ElfOSABI));
451      W.printNumber("ABIVersion", Header->e_ident[ELF::EI_ABIVERSION]);
452      W.printBinary("Unused", makeArrayRef(Header->e_ident).slice(ELF::EI_PAD));
453    }
454
455    W.printEnum  ("Type", Header->e_type, makeArrayRef(ElfObjectFileType));
456    W.printEnum  ("Machine", Header->e_machine, makeArrayRef(ElfMachineType));
457    W.printNumber("Version", Header->e_version);
458    W.printHex   ("Entry", Header->e_entry);
459    W.printHex   ("ProgramHeaderOffset", Header->e_phoff);
460    W.printHex   ("SectionHeaderOffset", Header->e_shoff);
461    W.printFlags ("Flags", Header->e_flags);
462    W.printNumber("HeaderSize", Header->e_ehsize);
463    W.printNumber("ProgramHeaderEntrySize", Header->e_phentsize);
464    W.printNumber("ProgramHeaderCount", Header->e_phnum);
465    W.printNumber("SectionHeaderEntrySize", Header->e_shentsize);
466    W.printNumber("SectionHeaderCount", Header->e_shnum);
467    W.printNumber("StringTableSectionIndex", Header->e_shstrndx);
468  }
469}
470
471template<class ELFT>
472void ELFDumper<ELFT>::printSections() {
473  ListScope SectionsD(W, "Sections");
474
475  int SectionIndex = -1;
476  error_code EC;
477  for (section_iterator SecI = Obj->begin_sections(),
478                        SecE = Obj->end_sections();
479                        SecI != SecE; SecI.increment(EC)) {
480    if (error(EC)) break;
481
482    ++SectionIndex;
483
484    const Elf_Shdr *Section = Obj->getElfSection(SecI);
485    StringRef Name;
486    if (error(SecI->getName(Name)))
487        Name = "";
488
489    DictScope SectionD(W, "Section");
490    W.printNumber("Index", SectionIndex);
491    W.printNumber("Name", Name, Section->sh_name);
492    W.printHex   ("Type", getElfSectionType(Obj->getArch(), Section->sh_type),
493                    Section->sh_type);
494    W.printFlags ("Flags", Section->sh_flags, makeArrayRef(ElfSectionFlags));
495    W.printHex   ("Address", Section->sh_addr);
496    W.printHex   ("Offset", Section->sh_offset);
497    W.printNumber("Size", Section->sh_size);
498    W.printNumber("Link", Section->sh_link);
499    W.printNumber("Info", Section->sh_info);
500    W.printNumber("AddressAlignment", Section->sh_addralign);
501    W.printNumber("EntrySize", Section->sh_entsize);
502
503    if (opts::SectionRelocations) {
504      ListScope D(W, "Relocations");
505      for (relocation_iterator RelI = SecI->begin_relocations(),
506                               RelE = SecI->end_relocations();
507                               RelI != RelE; RelI.increment(EC)) {
508        if (error(EC)) break;
509
510        printRelocation(SecI, RelI);
511      }
512    }
513
514    if (opts::SectionSymbols) {
515      ListScope D(W, "Symbols");
516      for (symbol_iterator SymI = Obj->begin_symbols(),
517                           SymE = Obj->end_symbols();
518                           SymI != SymE; SymI.increment(EC)) {
519        if (error(EC)) break;
520
521        bool Contained = false;
522        if (SecI->containsSymbol(*SymI, Contained) || !Contained)
523          continue;
524
525        printSymbol(SymI);
526      }
527    }
528
529    if (opts::SectionData) {
530      StringRef Data;
531      if (error(SecI->getContents(Data))) break;
532
533      W.printBinaryBlock("SectionData", Data);
534    }
535  }
536}
537
538template<class ELFT>
539void ELFDumper<ELFT>::printRelocations() {
540  ListScope D(W, "Relocations");
541
542  error_code EC;
543  int SectionNumber = -1;
544  for (section_iterator SecI = Obj->begin_sections(),
545                        SecE = Obj->end_sections();
546                        SecI != SecE; SecI.increment(EC)) {
547    if (error(EC)) break;
548
549    ++SectionNumber;
550    StringRef Name;
551    if (error(SecI->getName(Name)))
552      continue;
553
554    bool PrintedGroup = false;
555    for (relocation_iterator RelI = SecI->begin_relocations(),
556                             RelE = SecI->end_relocations();
557                             RelI != RelE; RelI.increment(EC)) {
558      if (error(EC)) break;
559
560      if (!PrintedGroup) {
561        W.startLine() << "Section (" << SectionNumber << ") " << Name << " {\n";
562        W.indent();
563        PrintedGroup = true;
564      }
565
566      printRelocation(SecI, RelI);
567    }
568
569    if (PrintedGroup) {
570      W.unindent();
571      W.startLine() << "}\n";
572    }
573  }
574}
575
576template<class ELFT>
577void ELFDumper<ELFT>::printRelocation(section_iterator Sec,
578                                      relocation_iterator RelI) {
579  uint64_t Offset;
580  uint64_t RelocType;
581  SmallString<32> RelocName;
582  int64_t Info;
583  StringRef SymbolName;
584  SymbolRef Symbol;
585  if (error(RelI->getOffset(Offset))) return;
586  if (error(RelI->getType(RelocType))) return;
587  if (error(RelI->getTypeName(RelocName))) return;
588  if (error(RelI->getAdditionalInfo(Info))) return;
589  if (error(RelI->getSymbol(Symbol))) return;
590  if (error(Symbol.getName(SymbolName))) return;
591
592  if (opts::ExpandRelocs) {
593    DictScope Group(W, "Relocation");
594    W.printHex("Offset", Offset);
595    W.printNumber("Type", RelocName, RelocType);
596    W.printString("Symbol", SymbolName.size() > 0 ? SymbolName : "-");
597    W.printHex("Info", Info);
598  } else {
599    raw_ostream& OS = W.startLine();
600    OS << W.hex(Offset)
601       << " " << RelocName
602       << " " << (SymbolName.size() > 0 ? SymbolName : "-")
603       << " " << W.hex(Info)
604       << "\n";
605  }
606}
607
608template<class ELFT>
609void ELFDumper<ELFT>::printSymbols() {
610  ListScope Group(W, "Symbols");
611
612  error_code EC;
613  for (symbol_iterator SymI = Obj->begin_symbols(), SymE = Obj->end_symbols();
614                       SymI != SymE; SymI.increment(EC)) {
615    if (error(EC)) break;
616
617    printSymbol(SymI);
618  }
619}
620
621template<class ELFT>
622void ELFDumper<ELFT>::printDynamicSymbols() {
623  ListScope Group(W, "DynamicSymbols");
624
625  error_code EC;
626  for (symbol_iterator SymI = Obj->begin_dynamic_symbols(),
627                       SymE = Obj->end_dynamic_symbols();
628                       SymI != SymE; SymI.increment(EC)) {
629    if (error(EC)) break;
630
631    printSymbol(SymI, true);
632  }
633}
634
635template<class ELFT>
636void ELFDumper<ELFT>::printSymbol(symbol_iterator SymI, bool IsDynamic) {
637  error_code EC;
638
639  const Elf_Sym *Symbol = Obj->getElfSymbol(SymI);
640  const Elf_Shdr *Section = Obj->getSection(Symbol);
641
642  StringRef SymbolName;
643  if (SymI->getName(SymbolName))
644    SymbolName = "";
645
646  StringRef SectionName;
647  if (Section && Obj->getSectionName(Section, SectionName))
648    SectionName = "";
649
650  std::string FullSymbolName(SymbolName);
651  if (IsDynamic) {
652    StringRef Version;
653    bool IsDefault;
654    if (error(Obj->getSymbolVersion(*SymI, Version, IsDefault)))
655      return;
656    if (!Version.empty()) {
657      FullSymbolName += (IsDefault ? "@@" : "@");
658      FullSymbolName += Version;
659    }
660  }
661
662  DictScope D(W, "Symbol");
663  W.printNumber("Name", FullSymbolName, Symbol->st_name);
664  W.printHex   ("Value", Symbol->st_value);
665  W.printNumber("Size", Symbol->st_size);
666  W.printEnum  ("Binding", Symbol->getBinding(),
667                  makeArrayRef(ElfSymbolBindings));
668  W.printEnum  ("Type", Symbol->getType(), makeArrayRef(ElfSymbolTypes));
669  W.printNumber("Other", Symbol->st_other);
670  W.printHex   ("Section", SectionName, Symbol->st_shndx);
671}
672
673#define LLVM_READOBJ_TYPE_CASE(name) \
674  case DT_##name: return #name
675
676static const char *getTypeString(uint64_t Type) {
677  switch (Type) {
678  LLVM_READOBJ_TYPE_CASE(BIND_NOW);
679  LLVM_READOBJ_TYPE_CASE(DEBUG);
680  LLVM_READOBJ_TYPE_CASE(FINI);
681  LLVM_READOBJ_TYPE_CASE(FINI_ARRAY);
682  LLVM_READOBJ_TYPE_CASE(FINI_ARRAYSZ);
683  LLVM_READOBJ_TYPE_CASE(FLAGS);
684  LLVM_READOBJ_TYPE_CASE(HASH);
685  LLVM_READOBJ_TYPE_CASE(INIT);
686  LLVM_READOBJ_TYPE_CASE(INIT_ARRAY);
687  LLVM_READOBJ_TYPE_CASE(INIT_ARRAYSZ);
688  LLVM_READOBJ_TYPE_CASE(PREINIT_ARRAY);
689  LLVM_READOBJ_TYPE_CASE(PREINIT_ARRAYSZ);
690  LLVM_READOBJ_TYPE_CASE(JMPREL);
691  LLVM_READOBJ_TYPE_CASE(NEEDED);
692  LLVM_READOBJ_TYPE_CASE(NULL);
693  LLVM_READOBJ_TYPE_CASE(PLTGOT);
694  LLVM_READOBJ_TYPE_CASE(PLTREL);
695  LLVM_READOBJ_TYPE_CASE(PLTRELSZ);
696  LLVM_READOBJ_TYPE_CASE(REL);
697  LLVM_READOBJ_TYPE_CASE(RELA);
698  LLVM_READOBJ_TYPE_CASE(RELENT);
699  LLVM_READOBJ_TYPE_CASE(RELSZ);
700  LLVM_READOBJ_TYPE_CASE(RELAENT);
701  LLVM_READOBJ_TYPE_CASE(RELASZ);
702  LLVM_READOBJ_TYPE_CASE(RPATH);
703  LLVM_READOBJ_TYPE_CASE(RUNPATH);
704  LLVM_READOBJ_TYPE_CASE(SONAME);
705  LLVM_READOBJ_TYPE_CASE(STRSZ);
706  LLVM_READOBJ_TYPE_CASE(STRTAB);
707  LLVM_READOBJ_TYPE_CASE(SYMBOLIC);
708  LLVM_READOBJ_TYPE_CASE(SYMENT);
709  LLVM_READOBJ_TYPE_CASE(SYMTAB);
710  LLVM_READOBJ_TYPE_CASE(TEXTREL);
711  default: return "unknown";
712  }
713}
714
715#undef LLVM_READOBJ_TYPE_CASE
716
717template<class ELFT>
718static void printValue(const ELFObjectFile<ELFT> *O, uint64_t Type,
719                       uint64_t Value, bool Is64, raw_ostream &OS) {
720  switch (Type) {
721  case DT_PLTREL:
722    if (Value == DT_REL) {
723      OS << "REL";
724      break;
725    } else if (Value == DT_RELA) {
726      OS << "RELA";
727      break;
728    }
729  // Fallthrough.
730  case DT_PLTGOT:
731  case DT_HASH:
732  case DT_STRTAB:
733  case DT_SYMTAB:
734  case DT_RELA:
735  case DT_INIT:
736  case DT_FINI:
737  case DT_REL:
738  case DT_JMPREL:
739  case DT_INIT_ARRAY:
740  case DT_FINI_ARRAY:
741  case DT_PREINIT_ARRAY:
742  case DT_DEBUG:
743  case DT_NULL:
744    OS << format("0x%" PRIX64, Value);
745    break;
746  case DT_PLTRELSZ:
747  case DT_RELASZ:
748  case DT_RELAENT:
749  case DT_STRSZ:
750  case DT_SYMENT:
751  case DT_RELSZ:
752  case DT_RELENT:
753  case DT_INIT_ARRAYSZ:
754  case DT_FINI_ARRAYSZ:
755  case DT_PREINIT_ARRAYSZ:
756    OS << Value << " (bytes)";
757    break;
758  case DT_NEEDED:
759    OS << "SharedLibrary ("
760       << O->getString(O->getDynamicStringTableSectionHeader(), Value) << ")";
761    break;
762  case DT_SONAME:
763    OS << "LibrarySoname ("
764       << O->getString(O->getDynamicStringTableSectionHeader(), Value) << ")";
765    break;
766  }
767}
768
769template<class ELFT>
770void ELFDumper<ELFT>::printUnwindInfo() {
771  W.startLine() << "UnwindInfo not implemented.\n";
772}
773
774template<class ELFT>
775void ELFDumper<ELFT>::printDynamicTable() {
776  typedef typename ELFO::Elf_Dyn_iterator EDI;
777  EDI Start = Obj->begin_dynamic_table(),
778      End = Obj->end_dynamic_table(true);
779
780  if (Start == End)
781    return;
782
783  ptrdiff_t Total = std::distance(Start, End);
784  raw_ostream &OS = W.getOStream();
785  W.startLine() << "DynamicSection [ (" << Total << " entries)\n";
786
787  bool Is64 = Obj->getBytesInAddress() == 8;
788
789  W.startLine()
790     << "  Tag" << (Is64 ? "                " : "        ") << "Type"
791     << "                 " << "Name/Value\n";
792  for (; Start != End; ++Start) {
793    W.startLine()
794       << "  "
795       << format(Is64 ? "0x%016" PRIX64 : "0x%08" PRIX64, Start->getTag())
796       << " " << format("%-21s", getTypeString(Start->getTag()));
797    printValue(Obj, Start->getTag(), Start->getVal(), Is64, OS);
798    OS << "\n";
799  }
800
801  W.startLine() << "]\n";
802}
803
804static bool compareLibraryName(const LibraryRef &L, const LibraryRef &R) {
805  StringRef LPath, RPath;
806  L.getPath(LPath);
807  R.getPath(RPath);
808  return LPath < RPath;
809}
810
811template<class ELFT>
812void ELFDumper<ELFT>::printNeededLibraries() {
813  ListScope D(W, "NeededLibraries");
814
815  error_code EC;
816
817  typedef std::vector<LibraryRef> LibsTy;
818  LibsTy Libs;
819
820  for (library_iterator I = Obj->begin_libraries_needed(),
821                        E = Obj->end_libraries_needed();
822                        I != E; I.increment(EC)) {
823    if (EC)
824      report_fatal_error("Needed libraries iteration failed");
825
826    Libs.push_back(*I);
827  }
828
829  std::sort(Libs.begin(), Libs.end(), &compareLibraryName);
830
831  for (LibsTy::const_iterator I = Libs.begin(), E = Libs.end();
832                                  I != E; ++I) {
833    StringRef Path;
834    I->getPath(Path);
835    outs() << "  " << Path << "\n";
836  }
837}
838
839template<class ELFT>
840void ELFDumper<ELFT>::printProgramHeaders() {
841  ListScope L(W, "ProgramHeaders");
842
843  for (typename ELFO::Elf_Phdr_Iter PI = Obj->begin_program_headers(),
844                                    PE = Obj->end_program_headers();
845                                    PI != PE; ++PI) {
846    DictScope P(W, "ProgramHeader");
847    W.printEnum  ("Type", PI->p_type, makeArrayRef(ElfSegmentTypes));
848    W.printHex   ("Offset", PI->p_offset);
849    W.printHex   ("VirtualAddress", PI->p_vaddr);
850    W.printHex   ("PhysicalAddress", PI->p_paddr);
851    W.printNumber("FileSize", PI->p_filesz);
852    W.printNumber("MemSize", PI->p_memsz);
853    W.printFlags ("Flags", PI->p_flags, makeArrayRef(ElfSegmentFlags));
854    W.printNumber("Alignment", PI->p_align);
855  }
856}
857