ELFDumper.cpp revision 76e70f340c09ba759ad96d8dfe416b64f24bc287 
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
54private:
55  typedef typename ELFObjectFile<ELFT>::Elf_Shdr Elf_Shdr;
56  typedef typename ELFObjectFile<ELFT>::Elf_Sym Elf_Sym;
57
58  void printSymbol(symbol_iterator SymI, bool IsDynamic = false);
59
60  void printRelocation(section_iterator SecI, relocation_iterator RelI);
61
62  const ELFObjectFile<ELFT> *Obj;
63};
64
65} // namespace
66
67
68namespace llvm {
69
70error_code createELFDumper(const object::ObjectFile *Obj,
71                           StreamWriter& Writer,
72                           OwningPtr<ObjDumper> &Result) {
73  typedef ELFType<support::little, 4, false> Little32ELF;
74  typedef ELFType<support::big,    4, false> Big32ELF;
75  typedef ELFType<support::little, 4, true > Little64ELF;
76  typedef ELFType<support::big,    8, true > Big64ELF;
77
78  typedef ELFObjectFile<Little32ELF> LittleELF32Obj;
79  typedef ELFObjectFile<Big32ELF   > BigELF32Obj;
80  typedef ELFObjectFile<Little64ELF> LittleELF64Obj;
81  typedef ELFObjectFile<Big64ELF   > BigELF64Obj;
82
83  // Little-endian 32-bit
84  if (const LittleELF32Obj *ELFObj = dyn_cast<LittleELF32Obj>(Obj)) {
85    Result.reset(new ELFDumper<Little32ELF>(ELFObj, Writer));
86    return readobj_error::success;
87  }
88
89  // Big-endian 32-bit
90  if (const BigELF32Obj *ELFObj = dyn_cast<BigELF32Obj>(Obj)) {
91    Result.reset(new ELFDumper<Big32ELF>(ELFObj, Writer));
92    return readobj_error::success;
93  }
94
95  // Little-endian 64-bit
96  if (const LittleELF64Obj *ELFObj = dyn_cast<LittleELF64Obj>(Obj)) {
97    Result.reset(new ELFDumper<Little64ELF>(ELFObj, Writer));
98    return readobj_error::success;
99  }
100
101  // Big-endian 64-bit
102  if (const BigELF64Obj *ELFObj = dyn_cast<BigELF64Obj>(Obj)) {
103    Result.reset(new ELFDumper<Big64ELF>(ELFObj, Writer));
104    return readobj_error::success;
105  }
106
107  return readobj_error::unsupported_obj_file_format;
108}
109
110} // namespace llvm
111
112
113static const EnumEntry<unsigned> ElfClass[] = {
114  { "None",   ELF::ELFCLASSNONE },
115  { "32-bit", ELF::ELFCLASS32   },
116  { "64-bit", ELF::ELFCLASS64   },
117};
118
119static const EnumEntry<unsigned> ElfDataEncoding[] = {
120  { "None",         ELF::ELFDATANONE },
121  { "LittleEndian", ELF::ELFDATA2LSB },
122  { "BigEndian",    ELF::ELFDATA2MSB },
123};
124
125static const EnumEntry<unsigned> ElfObjectFileType[] = {
126  { "None",         ELF::ET_NONE },
127  { "Relocatable",  ELF::ET_REL  },
128  { "Executable",   ELF::ET_EXEC },
129  { "SharedObject", ELF::ET_DYN  },
130  { "Core",         ELF::ET_CORE },
131};
132
133static const EnumEntry<unsigned> ElfOSABI[] = {
134  { "SystemV",      ELF::ELFOSABI_NONE         },
135  { "HPUX",         ELF::ELFOSABI_HPUX         },
136  { "NetBSD",       ELF::ELFOSABI_NETBSD       },
137  { "GNU/Linux",    ELF::ELFOSABI_LINUX        },
138  { "GNU/Hurd",     ELF::ELFOSABI_HURD         },
139  { "Solaris",      ELF::ELFOSABI_SOLARIS      },
140  { "AIX",          ELF::ELFOSABI_AIX          },
141  { "IRIX",         ELF::ELFOSABI_IRIX         },
142  { "FreeBSD",      ELF::ELFOSABI_FREEBSD      },
143  { "TRU64",        ELF::ELFOSABI_TRU64        },
144  { "Modesto",      ELF::ELFOSABI_MODESTO      },
145  { "OpenBSD",      ELF::ELFOSABI_OPENBSD      },
146  { "OpenVMS",      ELF::ELFOSABI_OPENVMS      },
147  { "NSK",          ELF::ELFOSABI_NSK          },
148  { "AROS",         ELF::ELFOSABI_AROS         },
149  { "FenixOS",      ELF::ELFOSABI_FENIXOS      },
150  { "C6000_ELFABI", ELF::ELFOSABI_C6000_ELFABI },
151  { "C6000_LINUX" , ELF::ELFOSABI_C6000_LINUX  },
152  { "ARM",          ELF::ELFOSABI_ARM          },
153  { "Standalone"  , ELF::ELFOSABI_STANDALONE   }
154};
155
156static const EnumEntry<unsigned> ElfMachineType[] = {
157  LLVM_READOBJ_ENUM_ENT(ELF, EM_NONE         ),
158  LLVM_READOBJ_ENUM_ENT(ELF, EM_M32          ),
159  LLVM_READOBJ_ENUM_ENT(ELF, EM_SPARC        ),
160  LLVM_READOBJ_ENUM_ENT(ELF, EM_386          ),
161  LLVM_READOBJ_ENUM_ENT(ELF, EM_68K          ),
162  LLVM_READOBJ_ENUM_ENT(ELF, EM_88K          ),
163  LLVM_READOBJ_ENUM_ENT(ELF, EM_486          ),
164  LLVM_READOBJ_ENUM_ENT(ELF, EM_860          ),
165  LLVM_READOBJ_ENUM_ENT(ELF, EM_MIPS         ),
166  LLVM_READOBJ_ENUM_ENT(ELF, EM_S370         ),
167  LLVM_READOBJ_ENUM_ENT(ELF, EM_MIPS_RS3_LE  ),
168  LLVM_READOBJ_ENUM_ENT(ELF, EM_PARISC       ),
169  LLVM_READOBJ_ENUM_ENT(ELF, EM_VPP500       ),
170  LLVM_READOBJ_ENUM_ENT(ELF, EM_SPARC32PLUS  ),
171  LLVM_READOBJ_ENUM_ENT(ELF, EM_960          ),
172  LLVM_READOBJ_ENUM_ENT(ELF, EM_PPC          ),
173  LLVM_READOBJ_ENUM_ENT(ELF, EM_PPC64        ),
174  LLVM_READOBJ_ENUM_ENT(ELF, EM_S390         ),
175  LLVM_READOBJ_ENUM_ENT(ELF, EM_SPU          ),
176  LLVM_READOBJ_ENUM_ENT(ELF, EM_V800         ),
177  LLVM_READOBJ_ENUM_ENT(ELF, EM_FR20         ),
178  LLVM_READOBJ_ENUM_ENT(ELF, EM_RH32         ),
179  LLVM_READOBJ_ENUM_ENT(ELF, EM_RCE          ),
180  LLVM_READOBJ_ENUM_ENT(ELF, EM_ARM          ),
181  LLVM_READOBJ_ENUM_ENT(ELF, EM_ALPHA        ),
182  LLVM_READOBJ_ENUM_ENT(ELF, EM_SH           ),
183  LLVM_READOBJ_ENUM_ENT(ELF, EM_SPARCV9      ),
184  LLVM_READOBJ_ENUM_ENT(ELF, EM_TRICORE      ),
185  LLVM_READOBJ_ENUM_ENT(ELF, EM_ARC          ),
186  LLVM_READOBJ_ENUM_ENT(ELF, EM_H8_300       ),
187  LLVM_READOBJ_ENUM_ENT(ELF, EM_H8_300H      ),
188  LLVM_READOBJ_ENUM_ENT(ELF, EM_H8S          ),
189  LLVM_READOBJ_ENUM_ENT(ELF, EM_H8_500       ),
190  LLVM_READOBJ_ENUM_ENT(ELF, EM_IA_64        ),
191  LLVM_READOBJ_ENUM_ENT(ELF, EM_MIPS_X       ),
192  LLVM_READOBJ_ENUM_ENT(ELF, EM_COLDFIRE     ),
193  LLVM_READOBJ_ENUM_ENT(ELF, EM_68HC12       ),
194  LLVM_READOBJ_ENUM_ENT(ELF, EM_MMA          ),
195  LLVM_READOBJ_ENUM_ENT(ELF, EM_PCP          ),
196  LLVM_READOBJ_ENUM_ENT(ELF, EM_NCPU         ),
197  LLVM_READOBJ_ENUM_ENT(ELF, EM_NDR1         ),
198  LLVM_READOBJ_ENUM_ENT(ELF, EM_STARCORE     ),
199  LLVM_READOBJ_ENUM_ENT(ELF, EM_ME16         ),
200  LLVM_READOBJ_ENUM_ENT(ELF, EM_ST100        ),
201  LLVM_READOBJ_ENUM_ENT(ELF, EM_TINYJ        ),
202  LLVM_READOBJ_ENUM_ENT(ELF, EM_X86_64       ),
203  LLVM_READOBJ_ENUM_ENT(ELF, EM_PDSP         ),
204  LLVM_READOBJ_ENUM_ENT(ELF, EM_PDP10        ),
205  LLVM_READOBJ_ENUM_ENT(ELF, EM_PDP11        ),
206  LLVM_READOBJ_ENUM_ENT(ELF, EM_FX66         ),
207  LLVM_READOBJ_ENUM_ENT(ELF, EM_ST9PLUS      ),
208  LLVM_READOBJ_ENUM_ENT(ELF, EM_ST7          ),
209  LLVM_READOBJ_ENUM_ENT(ELF, EM_68HC16       ),
210  LLVM_READOBJ_ENUM_ENT(ELF, EM_68HC11       ),
211  LLVM_READOBJ_ENUM_ENT(ELF, EM_68HC08       ),
212  LLVM_READOBJ_ENUM_ENT(ELF, EM_68HC05       ),
213  LLVM_READOBJ_ENUM_ENT(ELF, EM_SVX          ),
214  LLVM_READOBJ_ENUM_ENT(ELF, EM_ST19         ),
215  LLVM_READOBJ_ENUM_ENT(ELF, EM_VAX          ),
216  LLVM_READOBJ_ENUM_ENT(ELF, EM_CRIS         ),
217  LLVM_READOBJ_ENUM_ENT(ELF, EM_JAVELIN      ),
218  LLVM_READOBJ_ENUM_ENT(ELF, EM_FIREPATH     ),
219  LLVM_READOBJ_ENUM_ENT(ELF, EM_ZSP          ),
220  LLVM_READOBJ_ENUM_ENT(ELF, EM_MMIX         ),
221  LLVM_READOBJ_ENUM_ENT(ELF, EM_HUANY        ),
222  LLVM_READOBJ_ENUM_ENT(ELF, EM_PRISM        ),
223  LLVM_READOBJ_ENUM_ENT(ELF, EM_AVR          ),
224  LLVM_READOBJ_ENUM_ENT(ELF, EM_FR30         ),
225  LLVM_READOBJ_ENUM_ENT(ELF, EM_D10V         ),
226  LLVM_READOBJ_ENUM_ENT(ELF, EM_D30V         ),
227  LLVM_READOBJ_ENUM_ENT(ELF, EM_V850         ),
228  LLVM_READOBJ_ENUM_ENT(ELF, EM_M32R         ),
229  LLVM_READOBJ_ENUM_ENT(ELF, EM_MN10300      ),
230  LLVM_READOBJ_ENUM_ENT(ELF, EM_MN10200      ),
231  LLVM_READOBJ_ENUM_ENT(ELF, EM_PJ           ),
232  LLVM_READOBJ_ENUM_ENT(ELF, EM_OPENRISC     ),
233  LLVM_READOBJ_ENUM_ENT(ELF, EM_ARC_COMPACT  ),
234  LLVM_READOBJ_ENUM_ENT(ELF, EM_XTENSA       ),
235  LLVM_READOBJ_ENUM_ENT(ELF, EM_VIDEOCORE    ),
236  LLVM_READOBJ_ENUM_ENT(ELF, EM_TMM_GPP      ),
237  LLVM_READOBJ_ENUM_ENT(ELF, EM_NS32K        ),
238  LLVM_READOBJ_ENUM_ENT(ELF, EM_TPC          ),
239  LLVM_READOBJ_ENUM_ENT(ELF, EM_SNP1K        ),
240  LLVM_READOBJ_ENUM_ENT(ELF, EM_ST200        ),
241  LLVM_READOBJ_ENUM_ENT(ELF, EM_IP2K         ),
242  LLVM_READOBJ_ENUM_ENT(ELF, EM_MAX          ),
243  LLVM_READOBJ_ENUM_ENT(ELF, EM_CR           ),
244  LLVM_READOBJ_ENUM_ENT(ELF, EM_F2MC16       ),
245  LLVM_READOBJ_ENUM_ENT(ELF, EM_MSP430       ),
246  LLVM_READOBJ_ENUM_ENT(ELF, EM_BLACKFIN     ),
247  LLVM_READOBJ_ENUM_ENT(ELF, EM_SE_C33       ),
248  LLVM_READOBJ_ENUM_ENT(ELF, EM_SEP          ),
249  LLVM_READOBJ_ENUM_ENT(ELF, EM_ARCA         ),
250  LLVM_READOBJ_ENUM_ENT(ELF, EM_UNICORE      ),
251  LLVM_READOBJ_ENUM_ENT(ELF, EM_EXCESS       ),
252  LLVM_READOBJ_ENUM_ENT(ELF, EM_DXP          ),
253  LLVM_READOBJ_ENUM_ENT(ELF, EM_ALTERA_NIOS2 ),
254  LLVM_READOBJ_ENUM_ENT(ELF, EM_CRX          ),
255  LLVM_READOBJ_ENUM_ENT(ELF, EM_XGATE        ),
256  LLVM_READOBJ_ENUM_ENT(ELF, EM_C166         ),
257  LLVM_READOBJ_ENUM_ENT(ELF, EM_M16C         ),
258  LLVM_READOBJ_ENUM_ENT(ELF, EM_DSPIC30F     ),
259  LLVM_READOBJ_ENUM_ENT(ELF, EM_CE           ),
260  LLVM_READOBJ_ENUM_ENT(ELF, EM_M32C         ),
261  LLVM_READOBJ_ENUM_ENT(ELF, EM_TSK3000      ),
262  LLVM_READOBJ_ENUM_ENT(ELF, EM_RS08         ),
263  LLVM_READOBJ_ENUM_ENT(ELF, EM_SHARC        ),
264  LLVM_READOBJ_ENUM_ENT(ELF, EM_ECOG2        ),
265  LLVM_READOBJ_ENUM_ENT(ELF, EM_SCORE7       ),
266  LLVM_READOBJ_ENUM_ENT(ELF, EM_DSP24        ),
267  LLVM_READOBJ_ENUM_ENT(ELF, EM_VIDEOCORE3   ),
268  LLVM_READOBJ_ENUM_ENT(ELF, EM_LATTICEMICO32),
269  LLVM_READOBJ_ENUM_ENT(ELF, EM_SE_C17       ),
270  LLVM_READOBJ_ENUM_ENT(ELF, EM_TI_C6000     ),
271  LLVM_READOBJ_ENUM_ENT(ELF, EM_TI_C2000     ),
272  LLVM_READOBJ_ENUM_ENT(ELF, EM_TI_C5500     ),
273  LLVM_READOBJ_ENUM_ENT(ELF, EM_MMDSP_PLUS   ),
274  LLVM_READOBJ_ENUM_ENT(ELF, EM_CYPRESS_M8C  ),
275  LLVM_READOBJ_ENUM_ENT(ELF, EM_R32C         ),
276  LLVM_READOBJ_ENUM_ENT(ELF, EM_TRIMEDIA     ),
277  LLVM_READOBJ_ENUM_ENT(ELF, EM_HEXAGON      ),
278  LLVM_READOBJ_ENUM_ENT(ELF, EM_8051         ),
279  LLVM_READOBJ_ENUM_ENT(ELF, EM_STXP7X       ),
280  LLVM_READOBJ_ENUM_ENT(ELF, EM_NDS32        ),
281  LLVM_READOBJ_ENUM_ENT(ELF, EM_ECOG1        ),
282  LLVM_READOBJ_ENUM_ENT(ELF, EM_ECOG1X       ),
283  LLVM_READOBJ_ENUM_ENT(ELF, EM_MAXQ30       ),
284  LLVM_READOBJ_ENUM_ENT(ELF, EM_XIMO16       ),
285  LLVM_READOBJ_ENUM_ENT(ELF, EM_MANIK        ),
286  LLVM_READOBJ_ENUM_ENT(ELF, EM_CRAYNV2      ),
287  LLVM_READOBJ_ENUM_ENT(ELF, EM_RX           ),
288  LLVM_READOBJ_ENUM_ENT(ELF, EM_METAG        ),
289  LLVM_READOBJ_ENUM_ENT(ELF, EM_MCST_ELBRUS  ),
290  LLVM_READOBJ_ENUM_ENT(ELF, EM_ECOG16       ),
291  LLVM_READOBJ_ENUM_ENT(ELF, EM_CR16         ),
292  LLVM_READOBJ_ENUM_ENT(ELF, EM_ETPU         ),
293  LLVM_READOBJ_ENUM_ENT(ELF, EM_SLE9X        ),
294  LLVM_READOBJ_ENUM_ENT(ELF, EM_L10M         ),
295  LLVM_READOBJ_ENUM_ENT(ELF, EM_K10M         ),
296  LLVM_READOBJ_ENUM_ENT(ELF, EM_AARCH64      ),
297  LLVM_READOBJ_ENUM_ENT(ELF, EM_AVR32        ),
298  LLVM_READOBJ_ENUM_ENT(ELF, EM_STM8         ),
299  LLVM_READOBJ_ENUM_ENT(ELF, EM_TILE64       ),
300  LLVM_READOBJ_ENUM_ENT(ELF, EM_TILEPRO      ),
301  LLVM_READOBJ_ENUM_ENT(ELF, EM_MICROBLAZE   ),
302  LLVM_READOBJ_ENUM_ENT(ELF, EM_CUDA         ),
303  LLVM_READOBJ_ENUM_ENT(ELF, EM_TILEGX       ),
304  LLVM_READOBJ_ENUM_ENT(ELF, EM_CLOUDSHIELD  ),
305  LLVM_READOBJ_ENUM_ENT(ELF, EM_COREA_1ST    ),
306  LLVM_READOBJ_ENUM_ENT(ELF, EM_COREA_2ND    ),
307  LLVM_READOBJ_ENUM_ENT(ELF, EM_ARC_COMPACT2 ),
308  LLVM_READOBJ_ENUM_ENT(ELF, EM_OPEN8        ),
309  LLVM_READOBJ_ENUM_ENT(ELF, EM_RL78         ),
310  LLVM_READOBJ_ENUM_ENT(ELF, EM_VIDEOCORE5   ),
311  LLVM_READOBJ_ENUM_ENT(ELF, EM_78KOR        ),
312  LLVM_READOBJ_ENUM_ENT(ELF, EM_56800EX      ),
313  LLVM_READOBJ_ENUM_ENT(ELF, EM_MBLAZE       )
314};
315
316static const EnumEntry<unsigned> ElfSymbolBindings[] = {
317  { "Local",  ELF::STB_LOCAL  },
318  { "Global", ELF::STB_GLOBAL },
319  { "Weak",   ELF::STB_WEAK   }
320};
321
322static 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
333static const char *getElfSectionType(unsigned Arch, unsigned Type) {
334  switch (Arch) {
335  case Triple::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 Triple::hexagon:
344    switch (Type) {
345    LLVM_READOBJ_ENUM_CASE(ELF, SHT_HEX_ORDERED);
346    }
347  case Triple::x86_64:
348    switch (Type) {
349    LLVM_READOBJ_ENUM_CASE(ELF, SHT_X86_64_UNWIND);
350    }
351  case Triple::mips:
352  case Triple::mipsel:
353    switch (Type) {
354    LLVM_READOBJ_ENUM_CASE(ELF, SHT_MIPS_REGINFO);
355    LLVM_READOBJ_ENUM_CASE(ELF, SHT_MIPS_OPTIONS);
356    }
357  }
358
359  switch (Type) {
360  LLVM_READOBJ_ENUM_CASE(ELF, SHT_NULL              );
361  LLVM_READOBJ_ENUM_CASE(ELF, SHT_PROGBITS          );
362  LLVM_READOBJ_ENUM_CASE(ELF, SHT_SYMTAB            );
363  LLVM_READOBJ_ENUM_CASE(ELF, SHT_STRTAB            );
364  LLVM_READOBJ_ENUM_CASE(ELF, SHT_RELA              );
365  LLVM_READOBJ_ENUM_CASE(ELF, SHT_HASH              );
366  LLVM_READOBJ_ENUM_CASE(ELF, SHT_DYNAMIC           );
367  LLVM_READOBJ_ENUM_CASE(ELF, SHT_NOTE              );
368  LLVM_READOBJ_ENUM_CASE(ELF, SHT_NOBITS            );
369  LLVM_READOBJ_ENUM_CASE(ELF, SHT_REL               );
370  LLVM_READOBJ_ENUM_CASE(ELF, SHT_SHLIB             );
371  LLVM_READOBJ_ENUM_CASE(ELF, SHT_DYNSYM            );
372  LLVM_READOBJ_ENUM_CASE(ELF, SHT_INIT_ARRAY        );
373  LLVM_READOBJ_ENUM_CASE(ELF, SHT_FINI_ARRAY        );
374  LLVM_READOBJ_ENUM_CASE(ELF, SHT_PREINIT_ARRAY     );
375  LLVM_READOBJ_ENUM_CASE(ELF, SHT_GROUP             );
376  LLVM_READOBJ_ENUM_CASE(ELF, SHT_SYMTAB_SHNDX      );
377  LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_ATTRIBUTES    );
378  LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_HASH          );
379  LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_verdef        );
380  LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_verneed       );
381  LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_versym        );
382  default: return "";
383  }
384}
385
386static const EnumEntry<unsigned> ElfSectionFlags[] = {
387  LLVM_READOBJ_ENUM_ENT(ELF, SHF_WRITE           ),
388  LLVM_READOBJ_ENUM_ENT(ELF, SHF_ALLOC           ),
389  LLVM_READOBJ_ENUM_ENT(ELF, SHF_EXECINSTR       ),
390  LLVM_READOBJ_ENUM_ENT(ELF, SHF_MERGE           ),
391  LLVM_READOBJ_ENUM_ENT(ELF, SHF_STRINGS         ),
392  LLVM_READOBJ_ENUM_ENT(ELF, SHF_INFO_LINK       ),
393  LLVM_READOBJ_ENUM_ENT(ELF, SHF_LINK_ORDER      ),
394  LLVM_READOBJ_ENUM_ENT(ELF, SHF_OS_NONCONFORMING),
395  LLVM_READOBJ_ENUM_ENT(ELF, SHF_GROUP           ),
396  LLVM_READOBJ_ENUM_ENT(ELF, SHF_TLS             ),
397  LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_CP_SECTION),
398  LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_DP_SECTION),
399  LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NOSTRIP    )
400};
401
402
403template<class ELFT>
404void ELFDumper<ELFT>::printFileHeaders() {
405  error_code EC;
406  typedef ELFObjectFile<ELFT> ELFO;
407
408  const typename ELFO::Elf_Ehdr *Header = Obj->getElfHeader();
409
410  {
411    DictScope D(W, "ElfHeader");
412    {
413      DictScope D(W, "Ident");
414      W.printBinary("Magic", makeArrayRef(Header->e_ident).slice(ELF::EI_MAG0,
415                                                                 4));
416      W.printEnum  ("Class", Header->e_ident[ELF::EI_CLASS],
417                      makeArrayRef(ElfClass));
418      W.printEnum  ("DataEncoding", Header->e_ident[ELF::EI_DATA],
419                      makeArrayRef(ElfDataEncoding));
420      W.printNumber("FileVersion", Header->e_ident[ELF::EI_VERSION]);
421      W.printEnum  ("OS/ABI", Header->e_ident[ELF::EI_OSABI],
422                      makeArrayRef(ElfOSABI));
423      W.printNumber("ABIVersion", Header->e_ident[ELF::EI_ABIVERSION]);
424      W.printBinary("Unused", makeArrayRef(Header->e_ident).slice(ELF::EI_PAD));
425    }
426
427    W.printEnum  ("Type", Header->e_type, makeArrayRef(ElfObjectFileType));
428    W.printEnum  ("Machine", Header->e_machine, makeArrayRef(ElfMachineType));
429    W.printNumber("Version", Header->e_version);
430    W.printHex   ("Entry", Header->e_entry);
431    W.printHex   ("ProgramHeaderOffset", Header->e_phoff);
432    W.printHex   ("SectionHeaderOffset", Header->e_shoff);
433    W.printFlags ("Flags", Header->e_flags);
434    W.printNumber("HeaderSize", Header->e_ehsize);
435    W.printNumber("ProgramHeaderEntrySize", Header->e_phentsize);
436    W.printNumber("ProgramHeaderCount", Header->e_phnum);
437    W.printNumber("SectionHeaderEntrySize", Header->e_shentsize);
438    W.printNumber("SectionHeaderCount", Header->e_shnum);
439    W.printNumber("StringTableSectionIndex", Header->e_shstrndx);
440  }
441}
442
443template<class ELFT>
444void ELFDumper<ELFT>::printSections() {
445  ListScope SectionsD(W, "Sections");
446
447  int SectionIndex = -1;
448  error_code EC;
449  for (section_iterator SecI = Obj->begin_sections(),
450                        SecE = Obj->end_sections();
451                        SecI != SecE; SecI.increment(EC)) {
452    if (error(EC)) break;
453
454    ++SectionIndex;
455
456    const Elf_Shdr *Section = Obj->getElfSection(SecI);
457    StringRef Name;
458    if (error(SecI->getName(Name)))
459        Name = "";
460
461    DictScope SectionD(W, "Section");
462    W.printNumber("Index", SectionIndex);
463    W.printNumber("Name", Name, Section->sh_name);
464    W.printHex   ("Type", getElfSectionType(Obj->getArch(), Section->sh_type),
465                    Section->sh_type);
466    W.printFlags ("Flags", Section->sh_flags, makeArrayRef(ElfSectionFlags));
467    W.printHex   ("Address", Section->sh_addr);
468    W.printHex   ("Offset", Section->sh_offset);
469    W.printNumber("Size", Section->sh_size);
470    W.printNumber("Link", Section->sh_link);
471    W.printNumber("Info", Section->sh_info);
472    W.printNumber("AddressAlignment", Section->sh_addralign);
473    W.printNumber("EntrySize", Section->sh_entsize);
474
475    if (opts::SectionRelocations) {
476      ListScope D(W, "Relocations");
477      for (relocation_iterator RelI = SecI->begin_relocations(),
478                               RelE = SecI->end_relocations();
479                               RelI != RelE; RelI.increment(EC)) {
480        if (error(EC)) break;
481
482        printRelocation(SecI, RelI);
483      }
484    }
485
486    if (opts::SectionSymbols) {
487      ListScope D(W, "Symbols");
488      for (symbol_iterator SymI = Obj->begin_symbols(),
489                           SymE = Obj->end_symbols();
490                           SymI != SymE; SymI.increment(EC)) {
491        if (error(EC)) break;
492
493        bool Contained = false;
494        if (SecI->containsSymbol(*SymI, Contained) || !Contained)
495          continue;
496
497        printSymbol(SymI);
498      }
499    }
500
501    if (opts::SectionData) {
502      StringRef Data;
503      if (error(SecI->getContents(Data))) break;
504
505      W.printBinaryBlock("SectionData", Data);
506    }
507  }
508}
509
510template<class ELFT>
511void ELFDumper<ELFT>::printRelocations() {
512  ListScope D(W, "Relocations");
513
514  error_code EC;
515  int SectionNumber = -1;
516  for (section_iterator SecI = Obj->begin_sections(),
517                        SecE = Obj->end_sections();
518                        SecI != SecE; SecI.increment(EC)) {
519    if (error(EC)) break;
520
521    ++SectionNumber;
522    StringRef Name;
523    if (error(SecI->getName(Name)))
524      continue;
525
526    bool PrintedGroup = false;
527    for (relocation_iterator RelI = SecI->begin_relocations(),
528                             RelE = SecI->end_relocations();
529                             RelI != RelE; RelI.increment(EC)) {
530      if (error(EC)) break;
531
532      if (!PrintedGroup) {
533        W.startLine() << "Section (" << SectionNumber << ") " << Name << " {\n";
534        W.indent();
535        PrintedGroup = true;
536      }
537
538      printRelocation(SecI, RelI);
539    }
540
541    if (PrintedGroup) {
542      W.unindent();
543      W.startLine() << "}\n";
544    }
545  }
546}
547
548template<class ELFT>
549void ELFDumper<ELFT>::printRelocation(section_iterator Sec,
550                                      relocation_iterator RelI) {
551  uint64_t Offset;
552  SmallString<32> RelocName;
553  int64_t Info;
554  StringRef SymbolName;
555  SymbolRef Symbol;
556  if (error(RelI->getOffset(Offset))) return;
557  if (error(RelI->getTypeName(RelocName))) return;
558  if (error(RelI->getAdditionalInfo(Info))) return;
559  if (error(RelI->getSymbol(Symbol))) return;
560  if (error(Symbol.getName(SymbolName))) return;
561
562  raw_ostream& OS = W.startLine();
563  OS << W.hex(Offset)
564     << " " << RelocName
565     << " " << (SymbolName.size() > 0 ? SymbolName : "-")
566     << " " << W.hex(Info)
567     << "\n";
568}
569
570template<class ELFT>
571void ELFDumper<ELFT>::printSymbols() {
572  ListScope Group(W, "Symbols");
573
574  error_code EC;
575  for (symbol_iterator SymI = Obj->begin_symbols(), SymE = Obj->end_symbols();
576                       SymI != SymE; SymI.increment(EC)) {
577    if (error(EC)) break;
578
579    printSymbol(SymI);
580  }
581}
582
583template<class ELFT>
584void ELFDumper<ELFT>::printDynamicSymbols() {
585  ListScope Group(W, "DynamicSymbols");
586
587  error_code EC;
588  for (symbol_iterator SymI = Obj->begin_dynamic_symbols(),
589                       SymE = Obj->end_dynamic_symbols();
590                       SymI != SymE; SymI.increment(EC)) {
591    if (error(EC)) break;
592
593    printSymbol(SymI, true);
594  }
595}
596
597template<class ELFT>
598void ELFDumper<ELFT>::printSymbol(symbol_iterator SymI, bool IsDynamic) {
599  error_code EC;
600
601  const Elf_Sym *Symbol = Obj->getElfSymbol(SymI);
602  const Elf_Shdr *Section = Obj->getSection(Symbol);
603
604  StringRef SymbolName;
605  if (SymI->getName(SymbolName))
606    SymbolName = "";
607
608  StringRef SectionName;
609  if (Section && Obj->getSectionName(Section, SectionName))
610    SectionName = "";
611
612  std::string FullSymbolName(SymbolName);
613  if (IsDynamic) {
614    StringRef Version;
615    bool IsDefault;
616    if (error(Obj->getSymbolVersion(*SymI, Version, IsDefault)))
617      return;
618    if (!Version.empty()) {
619      FullSymbolName += (IsDefault ? "@@" : "@");
620      FullSymbolName += Version;
621    }
622  }
623
624  DictScope D(W, "Symbol");
625  W.printNumber("Name", FullSymbolName, Symbol->st_name);
626  W.printHex   ("Value", Symbol->st_value);
627  W.printNumber("Size", Symbol->st_size);
628  W.printEnum  ("Binding", Symbol->getBinding(),
629                  makeArrayRef(ElfSymbolBindings));
630  W.printEnum  ("Type", Symbol->getType(), makeArrayRef(ElfSymbolTypes));
631  W.printNumber("Other", Symbol->st_other);
632  W.printHex   ("Section", SectionName, Symbol->st_shndx);
633}
634
635#define LLVM_READOBJ_TYPE_CASE(name) \
636  case DT_##name: return #name
637
638static const char *getTypeString(uint64_t Type) {
639  switch (Type) {
640  LLVM_READOBJ_TYPE_CASE(BIND_NOW);
641  LLVM_READOBJ_TYPE_CASE(DEBUG);
642  LLVM_READOBJ_TYPE_CASE(FINI);
643  LLVM_READOBJ_TYPE_CASE(FINI_ARRAY);
644  LLVM_READOBJ_TYPE_CASE(FINI_ARRAYSZ);
645  LLVM_READOBJ_TYPE_CASE(FLAGS);
646  LLVM_READOBJ_TYPE_CASE(HASH);
647  LLVM_READOBJ_TYPE_CASE(INIT);
648  LLVM_READOBJ_TYPE_CASE(INIT_ARRAY);
649  LLVM_READOBJ_TYPE_CASE(INIT_ARRAYSZ);
650  LLVM_READOBJ_TYPE_CASE(PREINIT_ARRAY);
651  LLVM_READOBJ_TYPE_CASE(PREINIT_ARRAYSZ);
652  LLVM_READOBJ_TYPE_CASE(JMPREL);
653  LLVM_READOBJ_TYPE_CASE(NEEDED);
654  LLVM_READOBJ_TYPE_CASE(NULL);
655  LLVM_READOBJ_TYPE_CASE(PLTGOT);
656  LLVM_READOBJ_TYPE_CASE(PLTREL);
657  LLVM_READOBJ_TYPE_CASE(PLTRELSZ);
658  LLVM_READOBJ_TYPE_CASE(REL);
659  LLVM_READOBJ_TYPE_CASE(RELA);
660  LLVM_READOBJ_TYPE_CASE(RELENT);
661  LLVM_READOBJ_TYPE_CASE(RELSZ);
662  LLVM_READOBJ_TYPE_CASE(RELAENT);
663  LLVM_READOBJ_TYPE_CASE(RELASZ);
664  LLVM_READOBJ_TYPE_CASE(RPATH);
665  LLVM_READOBJ_TYPE_CASE(RUNPATH);
666  LLVM_READOBJ_TYPE_CASE(SONAME);
667  LLVM_READOBJ_TYPE_CASE(STRSZ);
668  LLVM_READOBJ_TYPE_CASE(STRTAB);
669  LLVM_READOBJ_TYPE_CASE(SYMBOLIC);
670  LLVM_READOBJ_TYPE_CASE(SYMENT);
671  LLVM_READOBJ_TYPE_CASE(SYMTAB);
672  LLVM_READOBJ_TYPE_CASE(TEXTREL);
673  default: return "unknown";
674  }
675}
676
677#undef LLVM_READOBJ_TYPE_CASE
678
679template<class ELFT>
680static void printValue(const ELFObjectFile<ELFT> *O, uint64_t Type,
681                       uint64_t Value, bool Is64, raw_ostream &OS) {
682  switch (Type) {
683  case DT_PLTREL:
684    if (Value == DT_REL) {
685      OS << "REL";
686      break;
687    } else if (Value == DT_RELA) {
688      OS << "RELA";
689      break;
690    }
691  // Fallthrough.
692  case DT_PLTGOT:
693  case DT_HASH:
694  case DT_STRTAB:
695  case DT_SYMTAB:
696  case DT_RELA:
697  case DT_INIT:
698  case DT_FINI:
699  case DT_REL:
700  case DT_JMPREL:
701  case DT_INIT_ARRAY:
702  case DT_FINI_ARRAY:
703  case DT_PREINIT_ARRAY:
704  case DT_DEBUG:
705  case DT_NULL:
706    OS << format("0x%" PRIX64, Value);
707    break;
708  case DT_PLTRELSZ:
709  case DT_RELASZ:
710  case DT_RELAENT:
711  case DT_STRSZ:
712  case DT_SYMENT:
713  case DT_RELSZ:
714  case DT_RELENT:
715  case DT_INIT_ARRAYSZ:
716  case DT_FINI_ARRAYSZ:
717  case DT_PREINIT_ARRAYSZ:
718    OS << Value << " (bytes)";
719    break;
720  case DT_NEEDED:
721    OS << "SharedLibrary ("
722       << O->getString(O->getDynamicStringTableSectionHeader(), Value) << ")";
723    break;
724  case DT_SONAME:
725    OS << "LibrarySoname ("
726       << O->getString(O->getDynamicStringTableSectionHeader(), Value) << ")";
727    break;
728  }
729}
730
731template<class ELFT>
732void ELFDumper<ELFT>::printUnwindInfo() {
733  W.startLine() << "UnwindInfo not implemented.\n";
734}
735
736template<class ELFT>
737void ELFDumper<ELFT>::printDynamicTable() {
738  typedef ELFObjectFile<ELFT> ELFO;
739  typedef typename ELFO::Elf_Dyn_iterator EDI;
740  EDI Start = Obj->begin_dynamic_table(),
741      End = Obj->end_dynamic_table(true);
742
743  if (Start == End)
744    return;
745
746  ptrdiff_t Total = std::distance(Start, End);
747  raw_ostream &OS = W.getOStream();
748  W.startLine() << "DynamicSection [ (" << Total << " entries)\n";
749
750  bool Is64 = Obj->getBytesInAddress() == 8;
751
752  W.startLine()
753     << "  Tag" << (Is64 ? "                " : "        ") << "Type"
754     << "                 " << "Name/Value\n";
755  for (; Start != End; ++Start) {
756    W.startLine()
757       << "  "
758       << format(Is64 ? "0x%016" PRIX64 : "0x%08" PRIX64, Start->getTag())
759       << " " << format("%-21s", getTypeString(Start->getTag()));
760    printValue(Obj, Start->getTag(), Start->getVal(), Is64, OS);
761    OS << "\n";
762  }
763
764  W.startLine() << "]\n";
765}
766
767static bool compareLibraryName(const LibraryRef &L, const LibraryRef &R) {
768  StringRef LPath, RPath;
769  L.getPath(LPath);
770  R.getPath(RPath);
771  return LPath < RPath;
772}
773
774template<class ELFT>
775void ELFDumper<ELFT>::printNeededLibraries() {
776  ListScope D(W, "NeededLibraries");
777
778  error_code EC;
779
780  typedef std::vector<LibraryRef> LibsTy;
781  LibsTy Libs;
782
783  for (library_iterator I = Obj->begin_libraries_needed(),
784                        E = Obj->end_libraries_needed();
785                        I != E; I.increment(EC)) {
786    if (EC)
787      report_fatal_error("Needed libraries iteration failed");
788
789    Libs.push_back(*I);
790  }
791
792  std::sort(Libs.begin(), Libs.end(), &compareLibraryName);
793
794  for (LibsTy::const_iterator I = Libs.begin(), E = Libs.end();
795                                  I != E; ++I) {
796    StringRef Path;
797    I->getPath(Path);
798    outs() << "  " << Path << "\n";
799  }
800}
801