1 //===-- ELFDumper.cpp - ELF-specific dumper ---------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
11 /// \brief This file implements the ELF-specific dumper for llvm-readobj.
13 //===----------------------------------------------------------------------===//
15 #include "llvm-readobj.h"
16 #include "ARMAttributeParser.h"
17 #include "ARMEHABIPrinter.h"
19 #include "ObjDumper.h"
20 #include "StreamWriter.h"
21 #include "llvm/ADT/Optional.h"
22 #include "llvm/ADT/SmallString.h"
23 #include "llvm/ADT/StringExtras.h"
24 #include "llvm/Object/ELFObjectFile.h"
25 #include "llvm/Support/ARMBuildAttributes.h"
26 #include "llvm/Support/Compiler.h"
27 #include "llvm/Support/Format.h"
28 #include "llvm/Support/MathExtras.h"
29 #include "llvm/Support/raw_ostream.h"
32 using namespace llvm::object;
35 #define LLVM_READOBJ_ENUM_CASE(ns, enum) \
36 case ns::enum: return #enum;
40 template<typename ELFT>
41 class ELFDumper : public ObjDumper {
43 ELFDumper(const ELFFile<ELFT> *Obj, StreamWriter &Writer)
44 : ObjDumper(Writer), Obj(Obj) {}
46 void printFileHeaders() override;
47 void printSections() override;
48 void printRelocations() override;
49 void printSymbols() override;
50 void printDynamicSymbols() override;
51 void printUnwindInfo() override;
53 void printDynamicTable() override;
54 void printNeededLibraries() override;
55 void printProgramHeaders() override;
57 void printAttributes() override;
58 void printMipsPLTGOT() override;
61 typedef ELFFile<ELFT> ELFO;
62 typedef typename ELFO::Elf_Shdr Elf_Shdr;
63 typedef typename ELFO::Elf_Sym Elf_Sym;
65 void printSymbol(typename ELFO::Elf_Sym_Iter Symbol);
67 void printRelocations(const Elf_Shdr *Sec);
68 void printRelocation(const Elf_Shdr *Sec, typename ELFO::Elf_Rela Rel);
73 template <class T> T errorOrDefault(ErrorOr<T> Val, T Default = T()) {
75 error(Val.getError());
86 static std::error_code createELFDumper(const ELFFile<ELFT> *Obj,
88 std::unique_ptr<ObjDumper> &Result) {
89 Result.reset(new ELFDumper<ELFT>(Obj, Writer));
90 return readobj_error::success;
93 std::error_code createELFDumper(const object::ObjectFile *Obj,
95 std::unique_ptr<ObjDumper> &Result) {
96 // Little-endian 32-bit
97 if (const ELF32LEObjectFile *ELFObj = dyn_cast<ELF32LEObjectFile>(Obj))
98 return createELFDumper(ELFObj->getELFFile(), Writer, Result);
101 if (const ELF32BEObjectFile *ELFObj = dyn_cast<ELF32BEObjectFile>(Obj))
102 return createELFDumper(ELFObj->getELFFile(), Writer, Result);
104 // Little-endian 64-bit
105 if (const ELF64LEObjectFile *ELFObj = dyn_cast<ELF64LEObjectFile>(Obj))
106 return createELFDumper(ELFObj->getELFFile(), Writer, Result);
109 if (const ELF64BEObjectFile *ELFObj = dyn_cast<ELF64BEObjectFile>(Obj))
110 return createELFDumper(ELFObj->getELFFile(), Writer, Result);
112 return readobj_error::unsupported_obj_file_format;
117 template <typename ELFO>
118 static std::string getFullSymbolName(const ELFO &Obj,
119 typename ELFO::Elf_Sym_Iter Symbol) {
120 StringRef SymbolName = errorOrDefault(Obj.getSymbolName(Symbol));
121 if (!Symbol.isDynamic())
124 std::string FullSymbolName(SymbolName);
127 ErrorOr<StringRef> Version =
128 Obj.getSymbolVersion(nullptr, &*Symbol, IsDefault);
130 FullSymbolName += (IsDefault ? "@@" : "@");
131 FullSymbolName += *Version;
133 error(Version.getError());
134 return FullSymbolName;
137 template <typename ELFO>
139 getSectionNameIndex(const ELFO &Obj, typename ELFO::Elf_Sym_Iter Symbol,
140 StringRef &SectionName, unsigned &SectionIndex) {
141 SectionIndex = Symbol->st_shndx;
142 if (SectionIndex == SHN_UNDEF) {
143 SectionName = "Undefined";
144 } else if (SectionIndex >= SHN_LOPROC && SectionIndex <= SHN_HIPROC) {
145 SectionName = "Processor Specific";
146 } else if (SectionIndex >= SHN_LOOS && SectionIndex <= SHN_HIOS) {
147 SectionName = "Operating System Specific";
148 } else if (SectionIndex > SHN_HIOS && SectionIndex < SHN_ABS) {
149 SectionName = "Reserved";
150 } else if (SectionIndex == SHN_ABS) {
151 SectionName = "Absolute";
152 } else if (SectionIndex == SHN_COMMON) {
153 SectionName = "Common";
155 if (SectionIndex == SHN_XINDEX)
156 SectionIndex = Obj.getSymbolTableIndex(&*Symbol);
157 assert(SectionIndex != SHN_XINDEX &&
158 "getSymbolTableIndex should handle this");
159 const typename ELFO::Elf_Shdr *Sec = Obj.getSection(SectionIndex);
160 SectionName = errorOrDefault(Obj.getSectionName(Sec));
164 template <class ELFT>
165 static const typename ELFFile<ELFT>::Elf_Shdr *
166 findSectionByAddress(const ELFFile<ELFT> *Obj, uint64_t Addr) {
167 for (const auto &Shdr : Obj->sections())
168 if (Shdr.sh_addr == Addr)
173 static const EnumEntry<unsigned> ElfClass[] = {
174 { "None", ELF::ELFCLASSNONE },
175 { "32-bit", ELF::ELFCLASS32 },
176 { "64-bit", ELF::ELFCLASS64 },
179 static const EnumEntry<unsigned> ElfDataEncoding[] = {
180 { "None", ELF::ELFDATANONE },
181 { "LittleEndian", ELF::ELFDATA2LSB },
182 { "BigEndian", ELF::ELFDATA2MSB },
185 static const EnumEntry<unsigned> ElfObjectFileType[] = {
186 { "None", ELF::ET_NONE },
187 { "Relocatable", ELF::ET_REL },
188 { "Executable", ELF::ET_EXEC },
189 { "SharedObject", ELF::ET_DYN },
190 { "Core", ELF::ET_CORE },
193 static const EnumEntry<unsigned> ElfOSABI[] = {
194 { "SystemV", ELF::ELFOSABI_NONE },
195 { "HPUX", ELF::ELFOSABI_HPUX },
196 { "NetBSD", ELF::ELFOSABI_NETBSD },
197 { "GNU/Linux", ELF::ELFOSABI_LINUX },
198 { "GNU/Hurd", ELF::ELFOSABI_HURD },
199 { "Solaris", ELF::ELFOSABI_SOLARIS },
200 { "AIX", ELF::ELFOSABI_AIX },
201 { "IRIX", ELF::ELFOSABI_IRIX },
202 { "FreeBSD", ELF::ELFOSABI_FREEBSD },
203 { "TRU64", ELF::ELFOSABI_TRU64 },
204 { "Modesto", ELF::ELFOSABI_MODESTO },
205 { "OpenBSD", ELF::ELFOSABI_OPENBSD },
206 { "OpenVMS", ELF::ELFOSABI_OPENVMS },
207 { "NSK", ELF::ELFOSABI_NSK },
208 { "AROS", ELF::ELFOSABI_AROS },
209 { "FenixOS", ELF::ELFOSABI_FENIXOS },
210 { "C6000_ELFABI", ELF::ELFOSABI_C6000_ELFABI },
211 { "C6000_LINUX" , ELF::ELFOSABI_C6000_LINUX },
212 { "ARM", ELF::ELFOSABI_ARM },
213 { "Standalone" , ELF::ELFOSABI_STANDALONE }
216 static const EnumEntry<unsigned> ElfMachineType[] = {
217 LLVM_READOBJ_ENUM_ENT(ELF, EM_NONE ),
218 LLVM_READOBJ_ENUM_ENT(ELF, EM_M32 ),
219 LLVM_READOBJ_ENUM_ENT(ELF, EM_SPARC ),
220 LLVM_READOBJ_ENUM_ENT(ELF, EM_386 ),
221 LLVM_READOBJ_ENUM_ENT(ELF, EM_68K ),
222 LLVM_READOBJ_ENUM_ENT(ELF, EM_88K ),
223 LLVM_READOBJ_ENUM_ENT(ELF, EM_486 ),
224 LLVM_READOBJ_ENUM_ENT(ELF, EM_860 ),
225 LLVM_READOBJ_ENUM_ENT(ELF, EM_MIPS ),
226 LLVM_READOBJ_ENUM_ENT(ELF, EM_S370 ),
227 LLVM_READOBJ_ENUM_ENT(ELF, EM_MIPS_RS3_LE ),
228 LLVM_READOBJ_ENUM_ENT(ELF, EM_PARISC ),
229 LLVM_READOBJ_ENUM_ENT(ELF, EM_VPP500 ),
230 LLVM_READOBJ_ENUM_ENT(ELF, EM_SPARC32PLUS ),
231 LLVM_READOBJ_ENUM_ENT(ELF, EM_960 ),
232 LLVM_READOBJ_ENUM_ENT(ELF, EM_PPC ),
233 LLVM_READOBJ_ENUM_ENT(ELF, EM_PPC64 ),
234 LLVM_READOBJ_ENUM_ENT(ELF, EM_S390 ),
235 LLVM_READOBJ_ENUM_ENT(ELF, EM_SPU ),
236 LLVM_READOBJ_ENUM_ENT(ELF, EM_V800 ),
237 LLVM_READOBJ_ENUM_ENT(ELF, EM_FR20 ),
238 LLVM_READOBJ_ENUM_ENT(ELF, EM_RH32 ),
239 LLVM_READOBJ_ENUM_ENT(ELF, EM_RCE ),
240 LLVM_READOBJ_ENUM_ENT(ELF, EM_ARM ),
241 LLVM_READOBJ_ENUM_ENT(ELF, EM_ALPHA ),
242 LLVM_READOBJ_ENUM_ENT(ELF, EM_SH ),
243 LLVM_READOBJ_ENUM_ENT(ELF, EM_SPARCV9 ),
244 LLVM_READOBJ_ENUM_ENT(ELF, EM_TRICORE ),
245 LLVM_READOBJ_ENUM_ENT(ELF, EM_ARC ),
246 LLVM_READOBJ_ENUM_ENT(ELF, EM_H8_300 ),
247 LLVM_READOBJ_ENUM_ENT(ELF, EM_H8_300H ),
248 LLVM_READOBJ_ENUM_ENT(ELF, EM_H8S ),
249 LLVM_READOBJ_ENUM_ENT(ELF, EM_H8_500 ),
250 LLVM_READOBJ_ENUM_ENT(ELF, EM_IA_64 ),
251 LLVM_READOBJ_ENUM_ENT(ELF, EM_MIPS_X ),
252 LLVM_READOBJ_ENUM_ENT(ELF, EM_COLDFIRE ),
253 LLVM_READOBJ_ENUM_ENT(ELF, EM_68HC12 ),
254 LLVM_READOBJ_ENUM_ENT(ELF, EM_MMA ),
255 LLVM_READOBJ_ENUM_ENT(ELF, EM_PCP ),
256 LLVM_READOBJ_ENUM_ENT(ELF, EM_NCPU ),
257 LLVM_READOBJ_ENUM_ENT(ELF, EM_NDR1 ),
258 LLVM_READOBJ_ENUM_ENT(ELF, EM_STARCORE ),
259 LLVM_READOBJ_ENUM_ENT(ELF, EM_ME16 ),
260 LLVM_READOBJ_ENUM_ENT(ELF, EM_ST100 ),
261 LLVM_READOBJ_ENUM_ENT(ELF, EM_TINYJ ),
262 LLVM_READOBJ_ENUM_ENT(ELF, EM_X86_64 ),
263 LLVM_READOBJ_ENUM_ENT(ELF, EM_PDSP ),
264 LLVM_READOBJ_ENUM_ENT(ELF, EM_PDP10 ),
265 LLVM_READOBJ_ENUM_ENT(ELF, EM_PDP11 ),
266 LLVM_READOBJ_ENUM_ENT(ELF, EM_FX66 ),
267 LLVM_READOBJ_ENUM_ENT(ELF, EM_ST9PLUS ),
268 LLVM_READOBJ_ENUM_ENT(ELF, EM_ST7 ),
269 LLVM_READOBJ_ENUM_ENT(ELF, EM_68HC16 ),
270 LLVM_READOBJ_ENUM_ENT(ELF, EM_68HC11 ),
271 LLVM_READOBJ_ENUM_ENT(ELF, EM_68HC08 ),
272 LLVM_READOBJ_ENUM_ENT(ELF, EM_68HC05 ),
273 LLVM_READOBJ_ENUM_ENT(ELF, EM_SVX ),
274 LLVM_READOBJ_ENUM_ENT(ELF, EM_ST19 ),
275 LLVM_READOBJ_ENUM_ENT(ELF, EM_VAX ),
276 LLVM_READOBJ_ENUM_ENT(ELF, EM_CRIS ),
277 LLVM_READOBJ_ENUM_ENT(ELF, EM_JAVELIN ),
278 LLVM_READOBJ_ENUM_ENT(ELF, EM_FIREPATH ),
279 LLVM_READOBJ_ENUM_ENT(ELF, EM_ZSP ),
280 LLVM_READOBJ_ENUM_ENT(ELF, EM_MMIX ),
281 LLVM_READOBJ_ENUM_ENT(ELF, EM_HUANY ),
282 LLVM_READOBJ_ENUM_ENT(ELF, EM_PRISM ),
283 LLVM_READOBJ_ENUM_ENT(ELF, EM_AVR ),
284 LLVM_READOBJ_ENUM_ENT(ELF, EM_FR30 ),
285 LLVM_READOBJ_ENUM_ENT(ELF, EM_D10V ),
286 LLVM_READOBJ_ENUM_ENT(ELF, EM_D30V ),
287 LLVM_READOBJ_ENUM_ENT(ELF, EM_V850 ),
288 LLVM_READOBJ_ENUM_ENT(ELF, EM_M32R ),
289 LLVM_READOBJ_ENUM_ENT(ELF, EM_MN10300 ),
290 LLVM_READOBJ_ENUM_ENT(ELF, EM_MN10200 ),
291 LLVM_READOBJ_ENUM_ENT(ELF, EM_PJ ),
292 LLVM_READOBJ_ENUM_ENT(ELF, EM_OPENRISC ),
293 LLVM_READOBJ_ENUM_ENT(ELF, EM_ARC_COMPACT ),
294 LLVM_READOBJ_ENUM_ENT(ELF, EM_XTENSA ),
295 LLVM_READOBJ_ENUM_ENT(ELF, EM_VIDEOCORE ),
296 LLVM_READOBJ_ENUM_ENT(ELF, EM_TMM_GPP ),
297 LLVM_READOBJ_ENUM_ENT(ELF, EM_NS32K ),
298 LLVM_READOBJ_ENUM_ENT(ELF, EM_TPC ),
299 LLVM_READOBJ_ENUM_ENT(ELF, EM_SNP1K ),
300 LLVM_READOBJ_ENUM_ENT(ELF, EM_ST200 ),
301 LLVM_READOBJ_ENUM_ENT(ELF, EM_IP2K ),
302 LLVM_READOBJ_ENUM_ENT(ELF, EM_MAX ),
303 LLVM_READOBJ_ENUM_ENT(ELF, EM_CR ),
304 LLVM_READOBJ_ENUM_ENT(ELF, EM_F2MC16 ),
305 LLVM_READOBJ_ENUM_ENT(ELF, EM_MSP430 ),
306 LLVM_READOBJ_ENUM_ENT(ELF, EM_BLACKFIN ),
307 LLVM_READOBJ_ENUM_ENT(ELF, EM_SE_C33 ),
308 LLVM_READOBJ_ENUM_ENT(ELF, EM_SEP ),
309 LLVM_READOBJ_ENUM_ENT(ELF, EM_ARCA ),
310 LLVM_READOBJ_ENUM_ENT(ELF, EM_UNICORE ),
311 LLVM_READOBJ_ENUM_ENT(ELF, EM_EXCESS ),
312 LLVM_READOBJ_ENUM_ENT(ELF, EM_DXP ),
313 LLVM_READOBJ_ENUM_ENT(ELF, EM_ALTERA_NIOS2 ),
314 LLVM_READOBJ_ENUM_ENT(ELF, EM_CRX ),
315 LLVM_READOBJ_ENUM_ENT(ELF, EM_XGATE ),
316 LLVM_READOBJ_ENUM_ENT(ELF, EM_C166 ),
317 LLVM_READOBJ_ENUM_ENT(ELF, EM_M16C ),
318 LLVM_READOBJ_ENUM_ENT(ELF, EM_DSPIC30F ),
319 LLVM_READOBJ_ENUM_ENT(ELF, EM_CE ),
320 LLVM_READOBJ_ENUM_ENT(ELF, EM_M32C ),
321 LLVM_READOBJ_ENUM_ENT(ELF, EM_TSK3000 ),
322 LLVM_READOBJ_ENUM_ENT(ELF, EM_RS08 ),
323 LLVM_READOBJ_ENUM_ENT(ELF, EM_SHARC ),
324 LLVM_READOBJ_ENUM_ENT(ELF, EM_ECOG2 ),
325 LLVM_READOBJ_ENUM_ENT(ELF, EM_SCORE7 ),
326 LLVM_READOBJ_ENUM_ENT(ELF, EM_DSP24 ),
327 LLVM_READOBJ_ENUM_ENT(ELF, EM_VIDEOCORE3 ),
328 LLVM_READOBJ_ENUM_ENT(ELF, EM_LATTICEMICO32),
329 LLVM_READOBJ_ENUM_ENT(ELF, EM_SE_C17 ),
330 LLVM_READOBJ_ENUM_ENT(ELF, EM_TI_C6000 ),
331 LLVM_READOBJ_ENUM_ENT(ELF, EM_TI_C2000 ),
332 LLVM_READOBJ_ENUM_ENT(ELF, EM_TI_C5500 ),
333 LLVM_READOBJ_ENUM_ENT(ELF, EM_MMDSP_PLUS ),
334 LLVM_READOBJ_ENUM_ENT(ELF, EM_CYPRESS_M8C ),
335 LLVM_READOBJ_ENUM_ENT(ELF, EM_R32C ),
336 LLVM_READOBJ_ENUM_ENT(ELF, EM_TRIMEDIA ),
337 LLVM_READOBJ_ENUM_ENT(ELF, EM_HEXAGON ),
338 LLVM_READOBJ_ENUM_ENT(ELF, EM_8051 ),
339 LLVM_READOBJ_ENUM_ENT(ELF, EM_STXP7X ),
340 LLVM_READOBJ_ENUM_ENT(ELF, EM_NDS32 ),
341 LLVM_READOBJ_ENUM_ENT(ELF, EM_ECOG1 ),
342 LLVM_READOBJ_ENUM_ENT(ELF, EM_ECOG1X ),
343 LLVM_READOBJ_ENUM_ENT(ELF, EM_MAXQ30 ),
344 LLVM_READOBJ_ENUM_ENT(ELF, EM_XIMO16 ),
345 LLVM_READOBJ_ENUM_ENT(ELF, EM_MANIK ),
346 LLVM_READOBJ_ENUM_ENT(ELF, EM_CRAYNV2 ),
347 LLVM_READOBJ_ENUM_ENT(ELF, EM_RX ),
348 LLVM_READOBJ_ENUM_ENT(ELF, EM_METAG ),
349 LLVM_READOBJ_ENUM_ENT(ELF, EM_MCST_ELBRUS ),
350 LLVM_READOBJ_ENUM_ENT(ELF, EM_ECOG16 ),
351 LLVM_READOBJ_ENUM_ENT(ELF, EM_CR16 ),
352 LLVM_READOBJ_ENUM_ENT(ELF, EM_ETPU ),
353 LLVM_READOBJ_ENUM_ENT(ELF, EM_SLE9X ),
354 LLVM_READOBJ_ENUM_ENT(ELF, EM_L10M ),
355 LLVM_READOBJ_ENUM_ENT(ELF, EM_K10M ),
356 LLVM_READOBJ_ENUM_ENT(ELF, EM_AARCH64 ),
357 LLVM_READOBJ_ENUM_ENT(ELF, EM_AVR32 ),
358 LLVM_READOBJ_ENUM_ENT(ELF, EM_STM8 ),
359 LLVM_READOBJ_ENUM_ENT(ELF, EM_TILE64 ),
360 LLVM_READOBJ_ENUM_ENT(ELF, EM_TILEPRO ),
361 LLVM_READOBJ_ENUM_ENT(ELF, EM_CUDA ),
362 LLVM_READOBJ_ENUM_ENT(ELF, EM_TILEGX ),
363 LLVM_READOBJ_ENUM_ENT(ELF, EM_CLOUDSHIELD ),
364 LLVM_READOBJ_ENUM_ENT(ELF, EM_COREA_1ST ),
365 LLVM_READOBJ_ENUM_ENT(ELF, EM_COREA_2ND ),
366 LLVM_READOBJ_ENUM_ENT(ELF, EM_ARC_COMPACT2 ),
367 LLVM_READOBJ_ENUM_ENT(ELF, EM_OPEN8 ),
368 LLVM_READOBJ_ENUM_ENT(ELF, EM_RL78 ),
369 LLVM_READOBJ_ENUM_ENT(ELF, EM_VIDEOCORE5 ),
370 LLVM_READOBJ_ENUM_ENT(ELF, EM_78KOR ),
371 LLVM_READOBJ_ENUM_ENT(ELF, EM_56800EX )
374 static const EnumEntry<unsigned> ElfSymbolBindings[] = {
375 { "Local", ELF::STB_LOCAL },
376 { "Global", ELF::STB_GLOBAL },
377 { "Weak", ELF::STB_WEAK }
380 static const EnumEntry<unsigned> ElfSymbolTypes[] = {
381 { "None", ELF::STT_NOTYPE },
382 { "Object", ELF::STT_OBJECT },
383 { "Function", ELF::STT_FUNC },
384 { "Section", ELF::STT_SECTION },
385 { "File", ELF::STT_FILE },
386 { "Common", ELF::STT_COMMON },
387 { "TLS", ELF::STT_TLS },
388 { "GNU_IFunc", ELF::STT_GNU_IFUNC }
391 static const char *getElfSectionType(unsigned Arch, unsigned Type) {
395 LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_EXIDX);
396 LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_PREEMPTMAP);
397 LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_ATTRIBUTES);
398 LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_DEBUGOVERLAY);
399 LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_OVERLAYSECTION);
401 case ELF::EM_HEXAGON:
402 switch (Type) { LLVM_READOBJ_ENUM_CASE(ELF, SHT_HEX_ORDERED); }
404 switch (Type) { LLVM_READOBJ_ENUM_CASE(ELF, SHT_X86_64_UNWIND); }
406 case ELF::EM_MIPS_RS3_LE:
408 LLVM_READOBJ_ENUM_CASE(ELF, SHT_MIPS_REGINFO);
409 LLVM_READOBJ_ENUM_CASE(ELF, SHT_MIPS_OPTIONS);
414 LLVM_READOBJ_ENUM_CASE(ELF, SHT_NULL );
415 LLVM_READOBJ_ENUM_CASE(ELF, SHT_PROGBITS );
416 LLVM_READOBJ_ENUM_CASE(ELF, SHT_SYMTAB );
417 LLVM_READOBJ_ENUM_CASE(ELF, SHT_STRTAB );
418 LLVM_READOBJ_ENUM_CASE(ELF, SHT_RELA );
419 LLVM_READOBJ_ENUM_CASE(ELF, SHT_HASH );
420 LLVM_READOBJ_ENUM_CASE(ELF, SHT_DYNAMIC );
421 LLVM_READOBJ_ENUM_CASE(ELF, SHT_NOTE );
422 LLVM_READOBJ_ENUM_CASE(ELF, SHT_NOBITS );
423 LLVM_READOBJ_ENUM_CASE(ELF, SHT_REL );
424 LLVM_READOBJ_ENUM_CASE(ELF, SHT_SHLIB );
425 LLVM_READOBJ_ENUM_CASE(ELF, SHT_DYNSYM );
426 LLVM_READOBJ_ENUM_CASE(ELF, SHT_INIT_ARRAY );
427 LLVM_READOBJ_ENUM_CASE(ELF, SHT_FINI_ARRAY );
428 LLVM_READOBJ_ENUM_CASE(ELF, SHT_PREINIT_ARRAY );
429 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GROUP );
430 LLVM_READOBJ_ENUM_CASE(ELF, SHT_SYMTAB_SHNDX );
431 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_ATTRIBUTES );
432 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_HASH );
433 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_verdef );
434 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_verneed );
435 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_versym );
440 static const EnumEntry<unsigned> ElfSectionFlags[] = {
441 LLVM_READOBJ_ENUM_ENT(ELF, SHF_WRITE ),
442 LLVM_READOBJ_ENUM_ENT(ELF, SHF_ALLOC ),
443 LLVM_READOBJ_ENUM_ENT(ELF, SHF_EXCLUDE ),
444 LLVM_READOBJ_ENUM_ENT(ELF, SHF_EXECINSTR ),
445 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MERGE ),
446 LLVM_READOBJ_ENUM_ENT(ELF, SHF_STRINGS ),
447 LLVM_READOBJ_ENUM_ENT(ELF, SHF_INFO_LINK ),
448 LLVM_READOBJ_ENUM_ENT(ELF, SHF_LINK_ORDER ),
449 LLVM_READOBJ_ENUM_ENT(ELF, SHF_OS_NONCONFORMING),
450 LLVM_READOBJ_ENUM_ENT(ELF, SHF_GROUP ),
451 LLVM_READOBJ_ENUM_ENT(ELF, SHF_TLS ),
452 LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_CP_SECTION),
453 LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_DP_SECTION),
454 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NOSTRIP )
457 static const char *getElfSegmentType(unsigned Arch, unsigned Type) {
458 // Check potentially overlapped processor-specific
459 // program header type.
463 LLVM_READOBJ_ENUM_CASE(ELF, PT_ARM_EXIDX);
466 case ELF::EM_MIPS_RS3_LE:
468 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_REGINFO);
469 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_RTPROC);
470 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_OPTIONS);
475 LLVM_READOBJ_ENUM_CASE(ELF, PT_NULL );
476 LLVM_READOBJ_ENUM_CASE(ELF, PT_LOAD );
477 LLVM_READOBJ_ENUM_CASE(ELF, PT_DYNAMIC);
478 LLVM_READOBJ_ENUM_CASE(ELF, PT_INTERP );
479 LLVM_READOBJ_ENUM_CASE(ELF, PT_NOTE );
480 LLVM_READOBJ_ENUM_CASE(ELF, PT_SHLIB );
481 LLVM_READOBJ_ENUM_CASE(ELF, PT_PHDR );
482 LLVM_READOBJ_ENUM_CASE(ELF, PT_TLS );
484 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_EH_FRAME);
485 LLVM_READOBJ_ENUM_CASE(ELF, PT_SUNW_UNWIND);
487 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_STACK);
488 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_RELRO);
493 static const EnumEntry<unsigned> ElfSegmentFlags[] = {
494 LLVM_READOBJ_ENUM_ENT(ELF, PF_X),
495 LLVM_READOBJ_ENUM_ENT(ELF, PF_W),
496 LLVM_READOBJ_ENUM_ENT(ELF, PF_R)
499 static const EnumEntry<unsigned> ElfHeaderMipsFlags[] = {
500 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_NOREORDER),
501 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_PIC),
502 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_CPIC),
503 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI2),
504 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_32BITMODE),
505 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_NAN2008),
506 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_O32),
507 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MICROMIPS),
508 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_ASE_M16),
509 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_1),
510 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_2),
511 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_3),
512 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_4),
513 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_5),
514 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32),
515 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64),
516 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32R2),
517 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64R2),
518 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32R6),
519 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64R6)
523 void ELFDumper<ELFT>::printFileHeaders() {
524 const typename ELFO::Elf_Ehdr *Header = Obj->getHeader();
527 DictScope D(W, "ElfHeader");
529 DictScope D(W, "Ident");
530 W.printBinary("Magic", makeArrayRef(Header->e_ident).slice(ELF::EI_MAG0,
532 W.printEnum ("Class", Header->e_ident[ELF::EI_CLASS],
533 makeArrayRef(ElfClass));
534 W.printEnum ("DataEncoding", Header->e_ident[ELF::EI_DATA],
535 makeArrayRef(ElfDataEncoding));
536 W.printNumber("FileVersion", Header->e_ident[ELF::EI_VERSION]);
537 W.printEnum ("OS/ABI", Header->e_ident[ELF::EI_OSABI],
538 makeArrayRef(ElfOSABI));
539 W.printNumber("ABIVersion", Header->e_ident[ELF::EI_ABIVERSION]);
540 W.printBinary("Unused", makeArrayRef(Header->e_ident).slice(ELF::EI_PAD));
543 W.printEnum ("Type", Header->e_type, makeArrayRef(ElfObjectFileType));
544 W.printEnum ("Machine", Header->e_machine, makeArrayRef(ElfMachineType));
545 W.printNumber("Version", Header->e_version);
546 W.printHex ("Entry", Header->e_entry);
547 W.printHex ("ProgramHeaderOffset", Header->e_phoff);
548 W.printHex ("SectionHeaderOffset", Header->e_shoff);
549 if (Header->e_machine == EM_MIPS)
550 W.printFlags("Flags", Header->e_flags, makeArrayRef(ElfHeaderMipsFlags),
551 unsigned(ELF::EF_MIPS_ARCH));
553 W.printFlags("Flags", Header->e_flags);
554 W.printNumber("HeaderSize", Header->e_ehsize);
555 W.printNumber("ProgramHeaderEntrySize", Header->e_phentsize);
556 W.printNumber("ProgramHeaderCount", Header->e_phnum);
557 W.printNumber("SectionHeaderEntrySize", Header->e_shentsize);
558 W.printNumber("SectionHeaderCount", Header->e_shnum);
559 W.printNumber("StringTableSectionIndex", Header->e_shstrndx);
564 void ELFDumper<ELFT>::printSections() {
565 ListScope SectionsD(W, "Sections");
567 int SectionIndex = -1;
568 for (typename ELFO::Elf_Shdr_Iter SecI = Obj->begin_sections(),
569 SecE = Obj->end_sections();
570 SecI != SecE; ++SecI) {
573 const Elf_Shdr *Section = &*SecI;
574 StringRef Name = errorOrDefault(Obj->getSectionName(Section));
576 DictScope SectionD(W, "Section");
577 W.printNumber("Index", SectionIndex);
578 W.printNumber("Name", Name, Section->sh_name);
580 getElfSectionType(Obj->getHeader()->e_machine, Section->sh_type),
582 W.printFlags ("Flags", Section->sh_flags, makeArrayRef(ElfSectionFlags));
583 W.printHex ("Address", Section->sh_addr);
584 W.printHex ("Offset", Section->sh_offset);
585 W.printNumber("Size", Section->sh_size);
586 W.printNumber("Link", Section->sh_link);
587 W.printNumber("Info", Section->sh_info);
588 W.printNumber("AddressAlignment", Section->sh_addralign);
589 W.printNumber("EntrySize", Section->sh_entsize);
591 if (opts::SectionRelocations) {
592 ListScope D(W, "Relocations");
593 printRelocations(Section);
596 if (opts::SectionSymbols) {
597 ListScope D(W, "Symbols");
598 for (typename ELFO::Elf_Sym_Iter SymI = Obj->begin_symbols(),
599 SymE = Obj->end_symbols();
600 SymI != SymE; ++SymI) {
601 if (Obj->getSection(&*SymI) == Section)
606 if (opts::SectionData) {
607 ArrayRef<uint8_t> Data = errorOrDefault(Obj->getSectionContents(Section));
608 W.printBinaryBlock("SectionData",
609 StringRef((const char *)Data.data(), Data.size()));
615 void ELFDumper<ELFT>::printRelocations() {
616 ListScope D(W, "Relocations");
618 int SectionNumber = -1;
619 for (typename ELFO::Elf_Shdr_Iter SecI = Obj->begin_sections(),
620 SecE = Obj->end_sections();
621 SecI != SecE; ++SecI) {
624 if (SecI->sh_type != ELF::SHT_REL && SecI->sh_type != ELF::SHT_RELA)
627 StringRef Name = errorOrDefault(Obj->getSectionName(&*SecI));
629 W.startLine() << "Section (" << SectionNumber << ") " << Name << " {\n";
632 printRelocations(&*SecI);
635 W.startLine() << "}\n";
639 template <class ELFT>
640 void ELFDumper<ELFT>::printRelocations(const Elf_Shdr *Sec) {
641 switch (Sec->sh_type) {
643 for (typename ELFO::Elf_Rel_Iter RI = Obj->begin_rel(Sec),
644 RE = Obj->end_rel(Sec);
646 typename ELFO::Elf_Rela Rela;
647 Rela.r_offset = RI->r_offset;
648 Rela.r_info = RI->r_info;
650 printRelocation(Sec, Rela);
654 for (typename ELFO::Elf_Rela_Iter RI = Obj->begin_rela(Sec),
655 RE = Obj->end_rela(Sec);
657 printRelocation(Sec, *RI);
663 template <class ELFT>
664 void ELFDumper<ELFT>::printRelocation(const Elf_Shdr *Sec,
665 typename ELFO::Elf_Rela Rel) {
666 SmallString<32> RelocName;
667 Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName);
668 StringRef SymbolName;
669 std::pair<const Elf_Shdr *, const Elf_Sym *> Sym =
670 Obj->getRelocationSymbol(Sec, &Rel);
672 SymbolName = errorOrDefault(Obj->getSymbolName(Sym.first, Sym.second));
674 if (opts::ExpandRelocs) {
675 DictScope Group(W, "Relocation");
676 W.printHex("Offset", Rel.r_offset);
677 W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL()));
678 W.printString("Symbol", SymbolName.size() > 0 ? SymbolName : "-");
679 W.printHex("Addend", Rel.r_addend);
681 raw_ostream& OS = W.startLine();
682 OS << W.hex(Rel.r_offset)
684 << " " << (SymbolName.size() > 0 ? SymbolName : "-")
685 << " " << W.hex(Rel.r_addend)
691 void ELFDumper<ELFT>::printSymbols() {
692 ListScope Group(W, "Symbols");
693 for (typename ELFO::Elf_Sym_Iter SymI = Obj->begin_symbols(),
694 SymE = Obj->end_symbols();
695 SymI != SymE; ++SymI) {
701 void ELFDumper<ELFT>::printDynamicSymbols() {
702 ListScope Group(W, "DynamicSymbols");
704 for (typename ELFO::Elf_Sym_Iter SymI = Obj->begin_dynamic_symbols(),
705 SymE = Obj->end_dynamic_symbols();
706 SymI != SymE; ++SymI) {
711 template <class ELFT>
712 void ELFDumper<ELFT>::printSymbol(typename ELFO::Elf_Sym_Iter Symbol) {
713 unsigned SectionIndex = 0;
714 StringRef SectionName;
715 getSectionNameIndex(*Obj, Symbol, SectionName, SectionIndex);
716 std::string FullSymbolName = getFullSymbolName(*Obj, Symbol);
718 DictScope D(W, "Symbol");
719 W.printNumber("Name", FullSymbolName, Symbol->st_name);
720 W.printHex ("Value", Symbol->st_value);
721 W.printNumber("Size", Symbol->st_size);
722 W.printEnum ("Binding", Symbol->getBinding(),
723 makeArrayRef(ElfSymbolBindings));
724 W.printEnum ("Type", Symbol->getType(), makeArrayRef(ElfSymbolTypes));
725 W.printNumber("Other", Symbol->st_other);
726 W.printHex("Section", SectionName, SectionIndex);
729 #define LLVM_READOBJ_TYPE_CASE(name) \
730 case DT_##name: return #name
732 static const char *getTypeString(uint64_t Type) {
734 LLVM_READOBJ_TYPE_CASE(BIND_NOW);
735 LLVM_READOBJ_TYPE_CASE(DEBUG);
736 LLVM_READOBJ_TYPE_CASE(FINI);
737 LLVM_READOBJ_TYPE_CASE(FINI_ARRAY);
738 LLVM_READOBJ_TYPE_CASE(FINI_ARRAYSZ);
739 LLVM_READOBJ_TYPE_CASE(FLAGS);
740 LLVM_READOBJ_TYPE_CASE(HASH);
741 LLVM_READOBJ_TYPE_CASE(INIT);
742 LLVM_READOBJ_TYPE_CASE(INIT_ARRAY);
743 LLVM_READOBJ_TYPE_CASE(INIT_ARRAYSZ);
744 LLVM_READOBJ_TYPE_CASE(PREINIT_ARRAY);
745 LLVM_READOBJ_TYPE_CASE(PREINIT_ARRAYSZ);
746 LLVM_READOBJ_TYPE_CASE(JMPREL);
747 LLVM_READOBJ_TYPE_CASE(NEEDED);
748 LLVM_READOBJ_TYPE_CASE(NULL);
749 LLVM_READOBJ_TYPE_CASE(PLTGOT);
750 LLVM_READOBJ_TYPE_CASE(PLTREL);
751 LLVM_READOBJ_TYPE_CASE(PLTRELSZ);
752 LLVM_READOBJ_TYPE_CASE(REL);
753 LLVM_READOBJ_TYPE_CASE(RELA);
754 LLVM_READOBJ_TYPE_CASE(RELENT);
755 LLVM_READOBJ_TYPE_CASE(RELSZ);
756 LLVM_READOBJ_TYPE_CASE(RELAENT);
757 LLVM_READOBJ_TYPE_CASE(RELASZ);
758 LLVM_READOBJ_TYPE_CASE(RPATH);
759 LLVM_READOBJ_TYPE_CASE(RUNPATH);
760 LLVM_READOBJ_TYPE_CASE(SONAME);
761 LLVM_READOBJ_TYPE_CASE(STRSZ);
762 LLVM_READOBJ_TYPE_CASE(STRTAB);
763 LLVM_READOBJ_TYPE_CASE(SYMBOLIC);
764 LLVM_READOBJ_TYPE_CASE(SYMENT);
765 LLVM_READOBJ_TYPE_CASE(SYMTAB);
766 LLVM_READOBJ_TYPE_CASE(TEXTREL);
767 LLVM_READOBJ_TYPE_CASE(VERNEED);
768 LLVM_READOBJ_TYPE_CASE(VERNEEDNUM);
769 LLVM_READOBJ_TYPE_CASE(VERSYM);
770 LLVM_READOBJ_TYPE_CASE(RELCOUNT);
771 LLVM_READOBJ_TYPE_CASE(GNU_HASH);
772 LLVM_READOBJ_TYPE_CASE(MIPS_RLD_VERSION);
773 LLVM_READOBJ_TYPE_CASE(MIPS_FLAGS);
774 LLVM_READOBJ_TYPE_CASE(MIPS_BASE_ADDRESS);
775 LLVM_READOBJ_TYPE_CASE(MIPS_LOCAL_GOTNO);
776 LLVM_READOBJ_TYPE_CASE(MIPS_SYMTABNO);
777 LLVM_READOBJ_TYPE_CASE(MIPS_UNREFEXTNO);
778 LLVM_READOBJ_TYPE_CASE(MIPS_GOTSYM);
779 LLVM_READOBJ_TYPE_CASE(MIPS_RLD_MAP);
780 LLVM_READOBJ_TYPE_CASE(MIPS_PLTGOT);
781 default: return "unknown";
785 #undef LLVM_READOBJ_TYPE_CASE
787 #define LLVM_READOBJ_DT_FLAG_ENT(prefix, enum) \
788 { #enum, prefix##_##enum }
790 static const EnumEntry<unsigned> ElfDynamicDTFlags[] = {
791 LLVM_READOBJ_DT_FLAG_ENT(DF, ORIGIN),
792 LLVM_READOBJ_DT_FLAG_ENT(DF, SYMBOLIC),
793 LLVM_READOBJ_DT_FLAG_ENT(DF, TEXTREL),
794 LLVM_READOBJ_DT_FLAG_ENT(DF, BIND_NOW),
795 LLVM_READOBJ_DT_FLAG_ENT(DF, STATIC_TLS)
798 static const EnumEntry<unsigned> ElfDynamicDTMipsFlags[] = {
799 LLVM_READOBJ_DT_FLAG_ENT(RHF, NONE),
800 LLVM_READOBJ_DT_FLAG_ENT(RHF, QUICKSTART),
801 LLVM_READOBJ_DT_FLAG_ENT(RHF, NOTPOT),
802 LLVM_READOBJ_DT_FLAG_ENT(RHS, NO_LIBRARY_REPLACEMENT),
803 LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_MOVE),
804 LLVM_READOBJ_DT_FLAG_ENT(RHF, SGI_ONLY),
805 LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_INIT),
806 LLVM_READOBJ_DT_FLAG_ENT(RHF, DELTA_C_PLUS_PLUS),
807 LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_START_INIT),
808 LLVM_READOBJ_DT_FLAG_ENT(RHF, PIXIE),
809 LLVM_READOBJ_DT_FLAG_ENT(RHF, DEFAULT_DELAY_LOAD),
810 LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTART),
811 LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTARTED),
812 LLVM_READOBJ_DT_FLAG_ENT(RHF, CORD),
813 LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_UNRES_UNDEF),
814 LLVM_READOBJ_DT_FLAG_ENT(RHF, RLD_ORDER_SAFE)
817 #undef LLVM_READOBJ_DT_FLAG_ENT
819 template <typename T, typename TFlag>
820 void printFlags(T Value, ArrayRef<EnumEntry<TFlag>> Flags, raw_ostream &OS) {
821 typedef EnumEntry<TFlag> FlagEntry;
822 typedef SmallVector<FlagEntry, 10> FlagVector;
825 for (const auto &Flag : Flags) {
829 if ((Value & Flag.Value) == Flag.Value)
830 SetFlags.push_back(Flag);
833 for (const auto &Flag : SetFlags) {
834 OS << Flag.Name << " ";
838 template <class ELFT>
839 static void printValue(const ELFFile<ELFT> *O, uint64_t Type, uint64_t Value,
840 bool Is64, raw_ostream &OS) {
843 if (Value == DT_REL) {
846 } else if (Value == DT_RELA) {
862 case DT_PREINIT_ARRAY:
868 case DT_MIPS_BASE_ADDRESS:
870 case DT_MIPS_RLD_MAP:
872 OS << format("0x%" PRIX64, Value);
876 case DT_MIPS_RLD_VERSION:
877 case DT_MIPS_LOCAL_GOTNO:
878 case DT_MIPS_SYMTABNO:
879 case DT_MIPS_UNREFEXTNO:
889 case DT_INIT_ARRAYSZ:
890 case DT_FINI_ARRAYSZ:
891 case DT_PREINIT_ARRAYSZ:
892 OS << Value << " (bytes)";
895 OS << "SharedLibrary (" << O->getDynamicString(Value) << ")";
898 OS << "LibrarySoname (" << O->getDynamicString(Value) << ")";
902 OS << O->getDynamicString(Value);
905 printFlags(Value, makeArrayRef(ElfDynamicDTMipsFlags), OS);
908 printFlags(Value, makeArrayRef(ElfDynamicDTFlags), OS);
914 void ELFDumper<ELFT>::printUnwindInfo() {
915 W.startLine() << "UnwindInfo not implemented.\n";
920 void ELFDumper<ELFType<support::little, 2, false> >::printUnwindInfo() {
921 const unsigned Machine = Obj->getHeader()->e_machine;
922 if (Machine == EM_ARM) {
923 ARM::EHABI::PrinterContext<ELFType<support::little, 2, false> > Ctx(W, Obj);
924 return Ctx.PrintUnwindInformation();
926 W.startLine() << "UnwindInfo not implemented.\n";
931 void ELFDumper<ELFT>::printDynamicTable() {
932 auto DynTable = Obj->dynamic_table(true);
934 ptrdiff_t Total = std::distance(DynTable.begin(), DynTable.end());
938 raw_ostream &OS = W.getOStream();
939 W.startLine() << "DynamicSection [ (" << Total << " entries)\n";
941 bool Is64 = ELFT::Is64Bits;
944 << " Tag" << (Is64 ? " " : " ") << "Type"
945 << " " << "Name/Value\n";
946 for (const auto &Entry : DynTable) {
949 << format(Is64 ? "0x%016" PRIX64 : "0x%08" PRIX64, Entry.getTag())
950 << " " << format("%-21s", getTypeString(Entry.getTag()));
951 printValue(Obj, Entry.getTag(), Entry.getVal(), Is64, OS);
955 W.startLine() << "]\n";
959 void ELFDumper<ELFT>::printNeededLibraries() {
960 ListScope D(W, "NeededLibraries");
962 typedef std::vector<StringRef> LibsTy;
965 for (const auto &Entry : Obj->dynamic_table())
966 if (Entry.d_tag == ELF::DT_NEEDED)
967 Libs.push_back(Obj->getDynamicString(Entry.d_un.d_val));
969 std::stable_sort(Libs.begin(), Libs.end());
971 for (LibsTy::const_iterator I = Libs.begin(), E = Libs.end(); I != E; ++I) {
972 outs() << " " << *I << "\n";
977 void ELFDumper<ELFT>::printProgramHeaders() {
978 ListScope L(W, "ProgramHeaders");
980 for (typename ELFO::Elf_Phdr_Iter PI = Obj->begin_program_headers(),
981 PE = Obj->end_program_headers();
983 DictScope P(W, "ProgramHeader");
985 getElfSegmentType(Obj->getHeader()->e_machine, PI->p_type),
987 W.printHex ("Offset", PI->p_offset);
988 W.printHex ("VirtualAddress", PI->p_vaddr);
989 W.printHex ("PhysicalAddress", PI->p_paddr);
990 W.printNumber("FileSize", PI->p_filesz);
991 W.printNumber("MemSize", PI->p_memsz);
992 W.printFlags ("Flags", PI->p_flags, makeArrayRef(ElfSegmentFlags));
993 W.printNumber("Alignment", PI->p_align);
997 template <class ELFT>
998 void ELFDumper<ELFT>::printAttributes() {
999 W.startLine() << "Attributes not implemented.\n";
1004 void ELFDumper<ELFType<support::little, 2, false> >::printAttributes() {
1005 if (Obj->getHeader()->e_machine != EM_ARM) {
1006 W.startLine() << "Attributes not implemented.\n";
1010 DictScope BA(W, "BuildAttributes");
1011 for (ELFO::Elf_Shdr_Iter SI = Obj->begin_sections(), SE = Obj->end_sections();
1013 if (SI->sh_type != ELF::SHT_ARM_ATTRIBUTES)
1016 ErrorOr<ArrayRef<uint8_t> > Contents = Obj->getSectionContents(&(*SI));
1020 if ((*Contents)[0] != ARMBuildAttrs::Format_Version) {
1021 errs() << "unrecognised FormatVersion: 0x" << utohexstr((*Contents)[0])
1026 W.printHex("FormatVersion", (*Contents)[0]);
1027 if (Contents->size() == 1)
1030 ARMAttributeParser(W).Parse(*Contents);
1036 template <class ELFT> class MipsGOTParser {
1038 typedef object::ELFFile<ELFT> ObjectFile;
1039 typedef typename ObjectFile::Elf_Shdr Elf_Shdr;
1041 MipsGOTParser(const ObjectFile *Obj, StreamWriter &W) : Obj(Obj), W(W) {}
1043 void ParseGOT(const Elf_Shdr &GOTShdr);
1046 typedef typename ObjectFile::Elf_Sym_Iter Elf_Sym_Iter;
1047 typedef typename ObjectFile::Elf_Addr GOTEntry;
1048 typedef typename ObjectFile::template ELFEntityIterator<const GOTEntry>
1051 const ObjectFile *Obj;
1054 std::size_t GetGOTTotal(ArrayRef<uint8_t> GOT) const;
1055 GOTIter MakeGOTIter(ArrayRef<uint8_t> GOT, std::size_t EntryNum);
1057 bool getGOTTags(uint64_t &LocalGotNum, uint64_t &GotSym);
1058 void printGotEntry(uint64_t GotAddr, GOTIter BeginIt, GOTIter It);
1059 void printGlobalGotEntry(uint64_t GotAddr, GOTIter BeginIt, GOTIter It,
1064 template <class ELFT>
1065 void MipsGOTParser<ELFT>::ParseGOT(const Elf_Shdr &GOTShdr) {
1066 // See "Global Offset Table" in Chapter 5 in the following document
1067 // for detailed GOT description.
1068 // ftp://www.linux-mips.org/pub/linux/mips/doc/ABI/mipsabi.pdf
1070 ErrorOr<ArrayRef<uint8_t>> GOT = Obj->getSectionContents(&GOTShdr);
1072 W.startLine() << "The .got section is empty.\n";
1076 uint64_t DtLocalGotNum;
1078 if (!getGOTTags(DtLocalGotNum, DtGotSym))
1081 if (DtLocalGotNum > GetGOTTotal(*GOT)) {
1082 W.startLine() << "MIPS_LOCAL_GOTNO exceeds a number of GOT entries.\n";
1086 Elf_Sym_Iter DynSymBegin = Obj->begin_dynamic_symbols();
1087 Elf_Sym_Iter DynSymEnd = Obj->end_dynamic_symbols();
1088 std::size_t DynSymTotal = std::size_t(std::distance(DynSymBegin, DynSymEnd));
1090 if (DtGotSym + 1 > DynSymTotal) {
1091 W.startLine() << "MIPS_GOTSYM exceeds a number of dynamic symbols.\n";
1095 std::size_t GlobalGotNum = DynSymTotal - DtGotSym;
1097 if (DtLocalGotNum + GlobalGotNum > GetGOTTotal(*GOT)) {
1098 W.startLine() << "Number of global GOT entries exceeds the size of GOT.\n";
1102 GOTIter GotBegin = MakeGOTIter(*GOT, 0);
1103 GOTIter GotLocalEnd = MakeGOTIter(*GOT, DtLocalGotNum);
1104 GOTIter It = GotBegin;
1106 DictScope GS(W, "Primary GOT");
1108 W.printHex("Canonical gp value", GOTShdr.sh_addr + 0x7ff0);
1110 ListScope RS(W, "Reserved entries");
1113 DictScope D(W, "Entry");
1114 printGotEntry(GOTShdr.sh_addr, GotBegin, It++);
1115 W.printString("Purpose", StringRef("Lazy resolver"));
1118 if (It != GotLocalEnd && (*It >> (sizeof(GOTEntry) * 8 - 1)) != 0) {
1119 DictScope D(W, "Entry");
1120 printGotEntry(GOTShdr.sh_addr, GotBegin, It++);
1121 W.printString("Purpose", StringRef("Module pointer (GNU extension)"));
1125 ListScope LS(W, "Local entries");
1126 for (; It != GotLocalEnd; ++It) {
1127 DictScope D(W, "Entry");
1128 printGotEntry(GOTShdr.sh_addr, GotBegin, It);
1132 ListScope GS(W, "Global entries");
1134 GOTIter GotGlobalEnd = MakeGOTIter(*GOT, DtLocalGotNum + GlobalGotNum);
1135 Elf_Sym_Iter GotDynSym = DynSymBegin + DtGotSym;
1136 for (; It != GotGlobalEnd; ++It) {
1137 DictScope D(W, "Entry");
1138 printGlobalGotEntry(GOTShdr.sh_addr, GotBegin, It, GotDynSym++);
1142 std::size_t SpecGotNum = GetGOTTotal(*GOT) - DtLocalGotNum - GlobalGotNum;
1143 W.printNumber("Number of TLS and multi-GOT entries", SpecGotNum);
1146 template <class ELFT>
1147 std::size_t MipsGOTParser<ELFT>::GetGOTTotal(ArrayRef<uint8_t> GOT) const {
1148 return GOT.size() / sizeof(GOTEntry);
1151 template <class ELFT>
1152 typename MipsGOTParser<ELFT>::GOTIter
1153 MipsGOTParser<ELFT>::MakeGOTIter(ArrayRef<uint8_t> GOT, std::size_t EntryNum) {
1154 const char *Data = reinterpret_cast<const char *>(GOT.data());
1155 return GOTIter(sizeof(GOTEntry), Data + EntryNum * sizeof(GOTEntry));
1158 template <class ELFT>
1159 bool MipsGOTParser<ELFT>::getGOTTags(uint64_t &LocalGotNum, uint64_t &GotSym) {
1160 bool FoundLocalGotNum = false;
1161 bool FoundGotSym = false;
1162 for (const auto &Entry : Obj->dynamic_table()) {
1163 switch (Entry.getTag()) {
1164 case ELF::DT_MIPS_LOCAL_GOTNO:
1165 LocalGotNum = Entry.getVal();
1166 FoundLocalGotNum = true;
1168 case ELF::DT_MIPS_GOTSYM:
1169 GotSym = Entry.getVal();
1175 if (!FoundLocalGotNum) {
1176 W.startLine() << "Cannot find MIPS_LOCAL_GOTNO dynamic table tag.\n";
1181 W.startLine() << "Cannot find MIPS_GOTSYM dynamic table tag.\n";
1188 template <class ELFT>
1189 void MipsGOTParser<ELFT>::printGotEntry(uint64_t GotAddr, GOTIter BeginIt,
1191 int64_t Offset = std::distance(BeginIt, It) * sizeof(GOTEntry);
1192 W.printHex("Address", GotAddr + Offset);
1193 W.printNumber("Access", Offset - 0x7ff0);
1194 W.printHex("Initial", *It);
1197 template <class ELFT>
1198 void MipsGOTParser<ELFT>::printGlobalGotEntry(uint64_t GotAddr, GOTIter BeginIt,
1199 GOTIter It, Elf_Sym_Iter Sym) {
1200 printGotEntry(GotAddr, BeginIt, It);
1202 W.printHex("Value", Sym->st_value);
1203 W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes));
1205 unsigned SectionIndex = 0;
1206 StringRef SectionName;
1207 getSectionNameIndex(*Obj, Sym, SectionName, SectionIndex);
1208 W.printHex("Section", SectionName, SectionIndex);
1210 std::string FullSymbolName = getFullSymbolName(*Obj, Sym);
1211 W.printNumber("Name", FullSymbolName, Sym->st_name);
1214 template <class ELFT> void ELFDumper<ELFT>::printMipsPLTGOT() {
1215 if (Obj->getHeader()->e_machine != EM_MIPS) {
1216 W.startLine() << "MIPS PLT GOT is available for MIPS targets only.\n";
1220 llvm::Optional<uint64_t> DtPltGot;
1221 for (const auto &Entry : Obj->dynamic_table()) {
1222 if (Entry.getTag() == ELF::DT_PLTGOT) {
1223 DtPltGot = Entry.getVal();
1229 W.startLine() << "Cannot find PLTGOT dynamic table tag.\n";
1233 const Elf_Shdr *GotShdr = findSectionByAddress(Obj, *DtPltGot);
1235 W.startLine() << "There is no .got section in the file.\n";
1239 MipsGOTParser<ELFT>(Obj, W).ParseGOT(*GotShdr);