ELFDumper.cpp revision 167957fa095bc7200b908e6e142be3e604bcfeea 
1558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch//===-- ELFDumper.cpp - ELF-specific dumper ---------------------*- C++ -*-===//
2558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch//
3558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch//                     The LLVM Compiler Infrastructure
4558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch//
5558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// This file is distributed under the University of Illinois Open Source
6558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch// License. See LICENSE.TXT for details.
7558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch//
8558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch//===----------------------------------------------------------------------===//
9558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch///
10558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch/// \file
11558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch/// \brief This file implements the ELF-specific dumper for llvm-readobj.
12558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch///
13558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch//===----------------------------------------------------------------------===//
14558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch
15558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch#include "llvm-readobj.h"
16558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch#include "Error.h"
17558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch#include "ObjDumper.h"
18558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch#include "StreamWriter.h"
19558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch
20558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch#include "llvm/ADT/SmallString.h"
21558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch#include "llvm/Object/ELF.h"
22558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch#include "llvm/Support/Compiler.h"
23558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch#include "llvm/Support/Format.h"
24558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch#include "llvm/Support/MathExtras.h"
25558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch#include "llvm/Support/raw_ostream.h"
26558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch
27558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdochusing namespace llvm;
28d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles)using namespace llvm::object;
29d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles)using namespace ELF;
30558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch
31558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch
32558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch#define LLVM_READOBJ_ENUM_CASE(ns, enum) \
33558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch  case ns::enum: return #enum;
34558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch
35558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdochnamespace {
36558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch
37558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdochtemplate<typename ELFT>
38558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdochclass ELFDumper : public ObjDumper {
39558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdochpublic:
40558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch  ELFDumper(const ELFObjectFile<ELFT> *Obj, StreamWriter& Writer)
41558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch    : ObjDumper(Writer)
42558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch    , Obj(Obj) { }
43558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch
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 Addend;
583  StringRef SymbolName;
584  SymbolRef Symbol;
585  if (Obj->getElfHeader()->e_type == ELF::ET_REL){
586    if (error(RelI->getOffset(Offset))) return;
587  } else {
588    if (error(RelI->getAddress(Offset))) return;
589  }
590  if (error(RelI->getType(RelocType))) return;
591  if (error(RelI->getTypeName(RelocName))) return;
592  if (error(getELFRelocationAddend(*RelI, Addend))) return;
593  if (error(RelI->getSymbol(Symbol))) return;
594  if (error(Symbol.getName(SymbolName))) return;
595
596  if (opts::ExpandRelocs) {
597    DictScope Group(W, "Relocation");
598    W.printHex("Offset", Offset);
599    W.printNumber("Type", RelocName, RelocType);
600    W.printString("Symbol", SymbolName.size() > 0 ? SymbolName : "-");
601    W.printHex("Addend", Addend);
602  } else {
603    raw_ostream& OS = W.startLine();
604    OS << W.hex(Offset)
605       << " " << RelocName
606       << " " << (SymbolName.size() > 0 ? SymbolName : "-")
607       << " " << W.hex(Addend)
608       << "\n";
609  }
610}
611
612template<class ELFT>
613void ELFDumper<ELFT>::printSymbols() {
614  ListScope Group(W, "Symbols");
615
616  error_code EC;
617  for (symbol_iterator SymI = Obj->begin_symbols(), SymE = Obj->end_symbols();
618                       SymI != SymE; SymI.increment(EC)) {
619    if (error(EC)) break;
620
621    printSymbol(SymI);
622  }
623}
624
625template<class ELFT>
626void ELFDumper<ELFT>::printDynamicSymbols() {
627  ListScope Group(W, "DynamicSymbols");
628
629  error_code EC;
630  for (symbol_iterator SymI = Obj->begin_dynamic_symbols(),
631                       SymE = Obj->end_dynamic_symbols();
632                       SymI != SymE; SymI.increment(EC)) {
633    if (error(EC)) break;
634
635    printSymbol(SymI, true);
636  }
637}
638
639template<class ELFT>
640void ELFDumper<ELFT>::printSymbol(symbol_iterator SymI, bool IsDynamic) {
641  error_code EC;
642
643  const Elf_Sym *Symbol = Obj->getElfSymbol(SymI);
644  const Elf_Shdr *Section = Obj->getSection(Symbol);
645
646  StringRef SymbolName;
647  if (SymI->getName(SymbolName))
648    SymbolName = "";
649
650  StringRef SectionName = "";
651  if (Section)
652    Obj->getSectionName(Section, SectionName);
653
654  std::string FullSymbolName(SymbolName);
655  if (IsDynamic) {
656    StringRef Version;
657    bool IsDefault;
658    if (error(Obj->getSymbolVersion(*SymI, Version, IsDefault)))
659      return;
660    if (!Version.empty()) {
661      FullSymbolName += (IsDefault ? "@@" : "@");
662      FullSymbolName += Version;
663    }
664  }
665
666  DictScope D(W, "Symbol");
667  W.printNumber("Name", FullSymbolName, Symbol->st_name);
668  W.printHex   ("Value", Symbol->st_value);
669  W.printNumber("Size", Symbol->st_size);
670  W.printEnum  ("Binding", Symbol->getBinding(),
671                  makeArrayRef(ElfSymbolBindings));
672  W.printEnum  ("Type", Symbol->getType(), makeArrayRef(ElfSymbolTypes));
673  W.printNumber("Other", Symbol->st_other);
674  W.printHex   ("Section", SectionName, Symbol->st_shndx);
675}
676
677#define LLVM_READOBJ_TYPE_CASE(name) \
678  case DT_##name: return #name
679
680static const char *getTypeString(uint64_t Type) {
681  switch (Type) {
682  LLVM_READOBJ_TYPE_CASE(BIND_NOW);
683  LLVM_READOBJ_TYPE_CASE(DEBUG);
684  LLVM_READOBJ_TYPE_CASE(FINI);
685  LLVM_READOBJ_TYPE_CASE(FINI_ARRAY);
686  LLVM_READOBJ_TYPE_CASE(FINI_ARRAYSZ);
687  LLVM_READOBJ_TYPE_CASE(FLAGS);
688  LLVM_READOBJ_TYPE_CASE(HASH);
689  LLVM_READOBJ_TYPE_CASE(INIT);
690  LLVM_READOBJ_TYPE_CASE(INIT_ARRAY);
691  LLVM_READOBJ_TYPE_CASE(INIT_ARRAYSZ);
692  LLVM_READOBJ_TYPE_CASE(PREINIT_ARRAY);
693  LLVM_READOBJ_TYPE_CASE(PREINIT_ARRAYSZ);
694  LLVM_READOBJ_TYPE_CASE(JMPREL);
695  LLVM_READOBJ_TYPE_CASE(NEEDED);
696  LLVM_READOBJ_TYPE_CASE(NULL);
697  LLVM_READOBJ_TYPE_CASE(PLTGOT);
698  LLVM_READOBJ_TYPE_CASE(PLTREL);
699  LLVM_READOBJ_TYPE_CASE(PLTRELSZ);
700  LLVM_READOBJ_TYPE_CASE(REL);
701  LLVM_READOBJ_TYPE_CASE(RELA);
702  LLVM_READOBJ_TYPE_CASE(RELENT);
703  LLVM_READOBJ_TYPE_CASE(RELSZ);
704  LLVM_READOBJ_TYPE_CASE(RELAENT);
705  LLVM_READOBJ_TYPE_CASE(RELASZ);
706  LLVM_READOBJ_TYPE_CASE(RPATH);
707  LLVM_READOBJ_TYPE_CASE(RUNPATH);
708  LLVM_READOBJ_TYPE_CASE(SONAME);
709  LLVM_READOBJ_TYPE_CASE(STRSZ);
710  LLVM_READOBJ_TYPE_CASE(STRTAB);
711  LLVM_READOBJ_TYPE_CASE(SYMBOLIC);
712  LLVM_READOBJ_TYPE_CASE(SYMENT);
713  LLVM_READOBJ_TYPE_CASE(SYMTAB);
714  LLVM_READOBJ_TYPE_CASE(TEXTREL);
715  default: return "unknown";
716  }
717}
718
719#undef LLVM_READOBJ_TYPE_CASE
720
721template<class ELFT>
722static void printValue(const ELFObjectFile<ELFT> *O, uint64_t Type,
723                       uint64_t Value, bool Is64, raw_ostream &OS) {
724  switch (Type) {
725  case DT_PLTREL:
726    if (Value == DT_REL) {
727      OS << "REL";
728      break;
729    } else if (Value == DT_RELA) {
730      OS << "RELA";
731      break;
732    }
733  // Fallthrough.
734  case DT_PLTGOT:
735  case DT_HASH:
736  case DT_STRTAB:
737  case DT_SYMTAB:
738  case DT_RELA:
739  case DT_INIT:
740  case DT_FINI:
741  case DT_REL:
742  case DT_JMPREL:
743  case DT_INIT_ARRAY:
744  case DT_FINI_ARRAY:
745  case DT_PREINIT_ARRAY:
746  case DT_DEBUG:
747  case DT_NULL:
748    OS << format("0x%" PRIX64, Value);
749    break;
750  case DT_PLTRELSZ:
751  case DT_RELASZ:
752  case DT_RELAENT:
753  case DT_STRSZ:
754  case DT_SYMENT:
755  case DT_RELSZ:
756  case DT_RELENT:
757  case DT_INIT_ARRAYSZ:
758  case DT_FINI_ARRAYSZ:
759  case DT_PREINIT_ARRAYSZ:
760    OS << Value << " (bytes)";
761    break;
762  case DT_NEEDED:
763    OS << "SharedLibrary ("
764       << O->getString(O->getDynamicStringTableSectionHeader(), Value) << ")";
765    break;
766  case DT_SONAME:
767    OS << "LibrarySoname ("
768       << O->getString(O->getDynamicStringTableSectionHeader(), Value) << ")";
769    break;
770  }
771}
772
773template<class ELFT>
774void ELFDumper<ELFT>::printUnwindInfo() {
775  W.startLine() << "UnwindInfo not implemented.\n";
776}
777
778template<class ELFT>
779void ELFDumper<ELFT>::printDynamicTable() {
780  typedef typename ELFO::Elf_Dyn_iterator EDI;
781  EDI Start = Obj->begin_dynamic_table(),
782      End = Obj->end_dynamic_table(true);
783
784  if (Start == End)
785    return;
786
787  ptrdiff_t Total = std::distance(Start, End);
788  raw_ostream &OS = W.getOStream();
789  W.startLine() << "DynamicSection [ (" << Total << " entries)\n";
790
791  bool Is64 = Obj->getBytesInAddress() == 8;
792
793  W.startLine()
794     << "  Tag" << (Is64 ? "                " : "        ") << "Type"
795     << "                 " << "Name/Value\n";
796  for (; Start != End; ++Start) {
797    W.startLine()
798       << "  "
799       << format(Is64 ? "0x%016" PRIX64 : "0x%08" PRIX64, Start->getTag())
800       << " " << format("%-21s", getTypeString(Start->getTag()));
801    printValue(Obj, Start->getTag(), Start->getVal(), Is64, OS);
802    OS << "\n";
803  }
804
805  W.startLine() << "]\n";
806}
807
808static bool compareLibraryName(const LibraryRef &L, const LibraryRef &R) {
809  StringRef LPath, RPath;
810  L.getPath(LPath);
811  R.getPath(RPath);
812  return LPath < RPath;
813}
814
815template<class ELFT>
816void ELFDumper<ELFT>::printNeededLibraries() {
817  ListScope D(W, "NeededLibraries");
818
819  error_code EC;
820
821  typedef std::vector<LibraryRef> LibsTy;
822  LibsTy Libs;
823
824  for (library_iterator I = Obj->begin_libraries_needed(),
825                        E = Obj->end_libraries_needed();
826                        I != E; I.increment(EC)) {
827    if (EC)
828      report_fatal_error("Needed libraries iteration failed");
829
830    Libs.push_back(*I);
831  }
832
833  std::sort(Libs.begin(), Libs.end(), &compareLibraryName);
834
835  for (LibsTy::const_iterator I = Libs.begin(), E = Libs.end();
836                                  I != E; ++I) {
837    StringRef Path;
838    I->getPath(Path);
839    outs() << "  " << Path << "\n";
840  }
841}
842
843template<class ELFT>
844void 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.printEnum  ("Type", PI->p_type, makeArrayRef(ElfSegmentTypes));
852    W.printHex   ("Offset", PI->p_offset);
853    W.printHex   ("VirtualAddress", PI->p_vaddr);
854    W.printHex   ("PhysicalAddress", PI->p_paddr);
855    W.printNumber("FileSize", PI->p_filesz);
856    W.printNumber("MemSize", PI->p_memsz);
857    W.printFlags ("Flags", PI->p_flags, makeArrayRef(ElfSegmentFlags));
858    W.printNumber("Alignment", PI->p_align);
859  }
860}
861