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 "StackMapPrinter.h"
21 #include "StreamWriter.h"
22 #include "llvm/ADT/Optional.h"
23 #include "llvm/ADT/SmallString.h"
24 #include "llvm/ADT/StringExtras.h"
25 #include "llvm/Object/ELFObjectFile.h"
26 #include "llvm/Support/ARMBuildAttributes.h"
27 #include "llvm/Support/Compiler.h"
28 #include "llvm/Support/Format.h"
29 #include "llvm/Support/MathExtras.h"
30 #include "llvm/Support/MipsABIFlags.h"
31 #include "llvm/Support/raw_ostream.h"
34 using namespace llvm::object;
37 #define LLVM_READOBJ_ENUM_CASE(ns, enum) \
38 case ns::enum: return #enum;
42 template<typename ELFT>
43 class ELFDumper : public ObjDumper {
45 ELFDumper(const ELFFile<ELFT> *Obj, StreamWriter &Writer);
47 void printFileHeaders() override;
48 void printSections() override;
49 void printRelocations() override;
50 void printDynamicRelocations() override;
51 void printSymbols() override;
52 void printDynamicSymbols() override;
53 void printUnwindInfo() override;
55 void printDynamicTable() override;
56 void printNeededLibraries() override;
57 void printProgramHeaders() override;
58 void printHashTable() override;
59 void printLoadName() override;
61 void printAttributes() override;
62 void printMipsPLTGOT() override;
63 void printMipsABIFlags() override;
64 void printMipsReginfo() override;
66 void printStackMap() const override;
69 typedef ELFFile<ELFT> ELFO;
70 typedef typename ELFO::Elf_Shdr Elf_Shdr;
71 typedef typename ELFO::Elf_Sym Elf_Sym;
72 typedef typename ELFO::Elf_Dyn Elf_Dyn;
73 typedef typename ELFO::Elf_Dyn_Range Elf_Dyn_Range;
74 typedef typename ELFO::Elf_Rel Elf_Rel;
75 typedef typename ELFO::Elf_Rela Elf_Rela;
76 typedef typename ELFO::Elf_Rela_Range Elf_Rela_Range;
77 typedef typename ELFO::Elf_Phdr Elf_Phdr;
78 typedef typename ELFO::Elf_Hash Elf_Hash;
79 typedef typename ELFO::Elf_Ehdr Elf_Ehdr;
80 typedef typename ELFO::uintX_t uintX_t;
81 typedef typename ELFO::Elf_Versym Elf_Versym;
82 typedef typename ELFO::Elf_Verneed Elf_Verneed;
83 typedef typename ELFO::Elf_Vernaux Elf_Vernaux;
84 typedef typename ELFO::Elf_Verdef Elf_Verdef;
86 /// \brief Represents a region described by entries in the .dynamic table.
87 struct DynRegionInfo {
88 DynRegionInfo() : Addr(nullptr), Size(0), EntSize(0) {}
89 /// \brief Address in current address space.
91 /// \brief Size in bytes of the region.
93 /// \brief Size of each entity in the region.
97 void printSymbol(const Elf_Sym *Symbol, StringRef StrTable, bool IsDynamic);
99 void printRelocations(const Elf_Shdr *Sec);
100 void printRelocation(const Elf_Shdr *Sec, Elf_Rela Rel);
101 void printValue(uint64_t Type, uint64_t Value);
103 const Elf_Rela *dyn_rela_begin() const;
104 const Elf_Rela *dyn_rela_end() const;
105 Elf_Rela_Range dyn_relas() const;
106 StringRef getDynamicString(uint64_t Offset) const;
107 const Elf_Dyn *dynamic_table_begin() const;
108 const Elf_Dyn *dynamic_table_end() const;
109 Elf_Dyn_Range dynamic_table() const {
110 return make_range(dynamic_table_begin(), dynamic_table_end());
113 StringRef getSymbolVersion(StringRef StrTab, const Elf_Sym *symb,
115 void LoadVersionMap();
116 void LoadVersionNeeds(const Elf_Shdr *ec) const;
117 void LoadVersionDefs(const Elf_Shdr *sec) const;
120 DynRegionInfo DynRelaRegion;
121 DynRegionInfo DynamicRegion;
122 StringRef DynamicStringTable;
123 const Elf_Sym *DynSymStart = nullptr;
125 const Elf_Hash *HashTable = nullptr;
127 const Elf_Shdr *dot_gnu_version_sec = nullptr; // .gnu.version
128 const Elf_Shdr *dot_gnu_version_r_sec = nullptr; // .gnu.version_r
129 const Elf_Shdr *dot_gnu_version_d_sec = nullptr; // .gnu.version_d
131 // Records for each version index the corresponding Verdef or Vernaux entry.
132 // This is filled the first time LoadVersionMap() is called.
133 class VersionMapEntry : public PointerIntPair<const void *, 1> {
135 // If the integer is 0, this is an Elf_Verdef*.
136 // If the integer is 1, this is an Elf_Vernaux*.
137 VersionMapEntry() : PointerIntPair<const void *, 1>(nullptr, 0) {}
138 VersionMapEntry(const Elf_Verdef *verdef)
139 : PointerIntPair<const void *, 1>(verdef, 0) {}
140 VersionMapEntry(const Elf_Vernaux *vernaux)
141 : PointerIntPair<const void *, 1>(vernaux, 1) {}
142 bool isNull() const { return getPointer() == nullptr; }
143 bool isVerdef() const { return !isNull() && getInt() == 0; }
144 bool isVernaux() const { return !isNull() && getInt() == 1; }
145 const Elf_Verdef *getVerdef() const {
146 return isVerdef() ? (const Elf_Verdef *)getPointer() : nullptr;
148 const Elf_Vernaux *getVernaux() const {
149 return isVernaux() ? (const Elf_Vernaux *)getPointer() : nullptr;
152 mutable SmallVector<VersionMapEntry, 16> VersionMap;
155 std::string getFullSymbolName(const Elf_Sym *Symbol, StringRef StrTable,
159 template <class T> T errorOrDefault(ErrorOr<T> Val, T Default = T()) {
161 error(Val.getError());
171 template <class ELFT>
172 static std::error_code createELFDumper(const ELFFile<ELFT> *Obj,
173 StreamWriter &Writer,
174 std::unique_ptr<ObjDumper> &Result) {
175 Result.reset(new ELFDumper<ELFT>(Obj, Writer));
176 return readobj_error::success;
179 std::error_code createELFDumper(const object::ObjectFile *Obj,
180 StreamWriter &Writer,
181 std::unique_ptr<ObjDumper> &Result) {
182 // Little-endian 32-bit
183 if (const ELF32LEObjectFile *ELFObj = dyn_cast<ELF32LEObjectFile>(Obj))
184 return createELFDumper(ELFObj->getELFFile(), Writer, Result);
187 if (const ELF32BEObjectFile *ELFObj = dyn_cast<ELF32BEObjectFile>(Obj))
188 return createELFDumper(ELFObj->getELFFile(), Writer, Result);
190 // Little-endian 64-bit
191 if (const ELF64LEObjectFile *ELFObj = dyn_cast<ELF64LEObjectFile>(Obj))
192 return createELFDumper(ELFObj->getELFFile(), Writer, Result);
195 if (const ELF64BEObjectFile *ELFObj = dyn_cast<ELF64BEObjectFile>(Obj))
196 return createELFDumper(ELFObj->getELFFile(), Writer, Result);
198 return readobj_error::unsupported_obj_file_format;
203 // Iterate through the versions needed section, and place each Elf_Vernaux
204 // in the VersionMap according to its index.
205 template <class ELFT>
206 void ELFDumper<ELFT>::LoadVersionNeeds(const Elf_Shdr *sec) const {
207 unsigned vn_size = sec->sh_size; // Size of section in bytes
208 unsigned vn_count = sec->sh_info; // Number of Verneed entries
209 const char *sec_start = (const char *)Obj->base() + sec->sh_offset;
210 const char *sec_end = sec_start + vn_size;
211 // The first Verneed entry is at the start of the section.
212 const char *p = sec_start;
213 for (unsigned i = 0; i < vn_count; i++) {
214 if (p + sizeof(Elf_Verneed) > sec_end)
215 report_fatal_error("Section ended unexpectedly while scanning "
216 "version needed records.");
217 const Elf_Verneed *vn = reinterpret_cast<const Elf_Verneed *>(p);
218 if (vn->vn_version != ELF::VER_NEED_CURRENT)
219 report_fatal_error("Unexpected verneed version");
220 // Iterate through the Vernaux entries
221 const char *paux = p + vn->vn_aux;
222 for (unsigned j = 0; j < vn->vn_cnt; j++) {
223 if (paux + sizeof(Elf_Vernaux) > sec_end)
224 report_fatal_error("Section ended unexpected while scanning auxiliary "
225 "version needed records.");
226 const Elf_Vernaux *vna = reinterpret_cast<const Elf_Vernaux *>(paux);
227 size_t index = vna->vna_other & ELF::VERSYM_VERSION;
228 if (index >= VersionMap.size())
229 VersionMap.resize(index + 1);
230 VersionMap[index] = VersionMapEntry(vna);
231 paux += vna->vna_next;
237 // Iterate through the version definitions, and place each Elf_Verdef
238 // in the VersionMap according to its index.
239 template <class ELFT>
240 void ELFDumper<ELFT>::LoadVersionDefs(const Elf_Shdr *sec) const {
241 unsigned vd_size = sec->sh_size; // Size of section in bytes
242 unsigned vd_count = sec->sh_info; // Number of Verdef entries
243 const char *sec_start = (const char *)Obj->base() + sec->sh_offset;
244 const char *sec_end = sec_start + vd_size;
245 // The first Verdef entry is at the start of the section.
246 const char *p = sec_start;
247 for (unsigned i = 0; i < vd_count; i++) {
248 if (p + sizeof(Elf_Verdef) > sec_end)
249 report_fatal_error("Section ended unexpectedly while scanning "
250 "version definitions.");
251 const Elf_Verdef *vd = reinterpret_cast<const Elf_Verdef *>(p);
252 if (vd->vd_version != ELF::VER_DEF_CURRENT)
253 report_fatal_error("Unexpected verdef version");
254 size_t index = vd->vd_ndx & ELF::VERSYM_VERSION;
255 if (index >= VersionMap.size())
256 VersionMap.resize(index + 1);
257 VersionMap[index] = VersionMapEntry(vd);
262 template <class ELFT> void ELFDumper<ELFT>::LoadVersionMap() {
263 // If there is no dynamic symtab or version table, there is nothing to do.
264 if (!DynSymStart || !dot_gnu_version_sec)
267 // Has the VersionMap already been loaded?
268 if (VersionMap.size() > 0)
271 // The first two version indexes are reserved.
272 // Index 0 is LOCAL, index 1 is GLOBAL.
273 VersionMap.push_back(VersionMapEntry());
274 VersionMap.push_back(VersionMapEntry());
276 if (dot_gnu_version_d_sec)
277 LoadVersionDefs(dot_gnu_version_d_sec);
279 if (dot_gnu_version_r_sec)
280 LoadVersionNeeds(dot_gnu_version_r_sec);
283 template <typename ELFT>
284 StringRef ELFDumper<ELFT>::getSymbolVersion(StringRef StrTab,
287 // This is a dynamic symbol. Look in the GNU symbol version table.
288 if (!dot_gnu_version_sec) {
291 return StringRef("");
294 // Determine the position in the symbol table of this entry.
295 size_t entry_index = (reinterpret_cast<uintptr_t>(symb) -
296 reinterpret_cast<uintptr_t>(DynSymStart)) /
299 // Get the corresponding version index entry
300 const Elf_Versym *vs =
301 Obj->template getEntry<Elf_Versym>(dot_gnu_version_sec, entry_index);
302 size_t version_index = vs->vs_index & ELF::VERSYM_VERSION;
304 // Special markers for unversioned symbols.
305 if (version_index == ELF::VER_NDX_LOCAL ||
306 version_index == ELF::VER_NDX_GLOBAL) {
308 return StringRef("");
311 // Lookup this symbol in the version table
313 if (version_index >= VersionMap.size() || VersionMap[version_index].isNull())
314 reportError("Invalid version entry");
315 const VersionMapEntry &entry = VersionMap[version_index];
317 // Get the version name string
319 if (entry.isVerdef()) {
320 // The first Verdaux entry holds the name.
321 name_offset = entry.getVerdef()->getAux()->vda_name;
323 name_offset = entry.getVernaux()->vna_name;
327 if (entry.isVerdef()) {
328 IsDefault = !(vs->vs_index & ELF::VERSYM_HIDDEN);
333 if (name_offset >= StrTab.size())
334 reportError("Invalid string offset");
335 return StringRef(StrTab.data() + name_offset);
338 template <typename ELFT>
339 std::string ELFDumper<ELFT>::getFullSymbolName(const Elf_Sym *Symbol,
342 StringRef SymbolName = errorOrDefault(Symbol->getName(StrTable));
346 std::string FullSymbolName(SymbolName);
349 StringRef Version = getSymbolVersion(StrTable, &*Symbol, IsDefault);
350 FullSymbolName += (IsDefault ? "@@" : "@");
351 FullSymbolName += Version;
352 return FullSymbolName;
355 template <typename ELFO>
357 getSectionNameIndex(const ELFO &Obj, const typename ELFO::Elf_Sym *Symbol,
358 StringRef &SectionName, unsigned &SectionIndex) {
359 SectionIndex = Symbol->st_shndx;
360 if (Symbol->isUndefined())
361 SectionName = "Undefined";
362 else if (Symbol->isProcessorSpecific())
363 SectionName = "Processor Specific";
364 else if (Symbol->isOSSpecific())
365 SectionName = "Operating System Specific";
366 else if (Symbol->isAbsolute())
367 SectionName = "Absolute";
368 else if (Symbol->isCommon())
369 SectionName = "Common";
370 else if (Symbol->isReserved() && SectionIndex != SHN_XINDEX)
371 SectionName = "Reserved";
373 if (SectionIndex == SHN_XINDEX)
374 SectionIndex = Obj.getExtendedSymbolTableIndex(&*Symbol);
375 ErrorOr<const typename ELFO::Elf_Shdr *> Sec = Obj.getSection(SectionIndex);
376 error(Sec.getError());
377 SectionName = errorOrDefault(Obj.getSectionName(*Sec));
381 template <class ELFO>
382 static const typename ELFO::Elf_Shdr *findSectionByAddress(const ELFO *Obj,
384 for (const auto &Shdr : Obj->sections())
385 if (Shdr.sh_addr == Addr)
390 template <class ELFO>
391 static const typename ELFO::Elf_Shdr *findSectionByName(const ELFO &Obj,
393 for (const auto &Shdr : Obj.sections()) {
394 if (Name == errorOrDefault(Obj.getSectionName(&Shdr)))
400 static const EnumEntry<unsigned> ElfClass[] = {
401 { "None", ELF::ELFCLASSNONE },
402 { "32-bit", ELF::ELFCLASS32 },
403 { "64-bit", ELF::ELFCLASS64 },
406 static const EnumEntry<unsigned> ElfDataEncoding[] = {
407 { "None", ELF::ELFDATANONE },
408 { "LittleEndian", ELF::ELFDATA2LSB },
409 { "BigEndian", ELF::ELFDATA2MSB },
412 static const EnumEntry<unsigned> ElfObjectFileType[] = {
413 { "None", ELF::ET_NONE },
414 { "Relocatable", ELF::ET_REL },
415 { "Executable", ELF::ET_EXEC },
416 { "SharedObject", ELF::ET_DYN },
417 { "Core", ELF::ET_CORE },
420 static const EnumEntry<unsigned> ElfOSABI[] = {
421 { "SystemV", ELF::ELFOSABI_NONE },
422 { "HPUX", ELF::ELFOSABI_HPUX },
423 { "NetBSD", ELF::ELFOSABI_NETBSD },
424 { "GNU/Linux", ELF::ELFOSABI_LINUX },
425 { "GNU/Hurd", ELF::ELFOSABI_HURD },
426 { "Solaris", ELF::ELFOSABI_SOLARIS },
427 { "AIX", ELF::ELFOSABI_AIX },
428 { "IRIX", ELF::ELFOSABI_IRIX },
429 { "FreeBSD", ELF::ELFOSABI_FREEBSD },
430 { "TRU64", ELF::ELFOSABI_TRU64 },
431 { "Modesto", ELF::ELFOSABI_MODESTO },
432 { "OpenBSD", ELF::ELFOSABI_OPENBSD },
433 { "OpenVMS", ELF::ELFOSABI_OPENVMS },
434 { "NSK", ELF::ELFOSABI_NSK },
435 { "AROS", ELF::ELFOSABI_AROS },
436 { "FenixOS", ELF::ELFOSABI_FENIXOS },
437 { "CloudABI", ELF::ELFOSABI_CLOUDABI },
438 { "C6000_ELFABI", ELF::ELFOSABI_C6000_ELFABI },
439 { "C6000_LINUX" , ELF::ELFOSABI_C6000_LINUX },
440 { "ARM", ELF::ELFOSABI_ARM },
441 { "Standalone" , ELF::ELFOSABI_STANDALONE }
444 static const EnumEntry<unsigned> ElfMachineType[] = {
445 LLVM_READOBJ_ENUM_ENT(ELF, EM_NONE ),
446 LLVM_READOBJ_ENUM_ENT(ELF, EM_M32 ),
447 LLVM_READOBJ_ENUM_ENT(ELF, EM_SPARC ),
448 LLVM_READOBJ_ENUM_ENT(ELF, EM_386 ),
449 LLVM_READOBJ_ENUM_ENT(ELF, EM_68K ),
450 LLVM_READOBJ_ENUM_ENT(ELF, EM_88K ),
451 LLVM_READOBJ_ENUM_ENT(ELF, EM_IAMCU ),
452 LLVM_READOBJ_ENUM_ENT(ELF, EM_860 ),
453 LLVM_READOBJ_ENUM_ENT(ELF, EM_MIPS ),
454 LLVM_READOBJ_ENUM_ENT(ELF, EM_S370 ),
455 LLVM_READOBJ_ENUM_ENT(ELF, EM_MIPS_RS3_LE ),
456 LLVM_READOBJ_ENUM_ENT(ELF, EM_PARISC ),
457 LLVM_READOBJ_ENUM_ENT(ELF, EM_VPP500 ),
458 LLVM_READOBJ_ENUM_ENT(ELF, EM_SPARC32PLUS ),
459 LLVM_READOBJ_ENUM_ENT(ELF, EM_960 ),
460 LLVM_READOBJ_ENUM_ENT(ELF, EM_PPC ),
461 LLVM_READOBJ_ENUM_ENT(ELF, EM_PPC64 ),
462 LLVM_READOBJ_ENUM_ENT(ELF, EM_S390 ),
463 LLVM_READOBJ_ENUM_ENT(ELF, EM_SPU ),
464 LLVM_READOBJ_ENUM_ENT(ELF, EM_V800 ),
465 LLVM_READOBJ_ENUM_ENT(ELF, EM_FR20 ),
466 LLVM_READOBJ_ENUM_ENT(ELF, EM_RH32 ),
467 LLVM_READOBJ_ENUM_ENT(ELF, EM_RCE ),
468 LLVM_READOBJ_ENUM_ENT(ELF, EM_ARM ),
469 LLVM_READOBJ_ENUM_ENT(ELF, EM_ALPHA ),
470 LLVM_READOBJ_ENUM_ENT(ELF, EM_SH ),
471 LLVM_READOBJ_ENUM_ENT(ELF, EM_SPARCV9 ),
472 LLVM_READOBJ_ENUM_ENT(ELF, EM_TRICORE ),
473 LLVM_READOBJ_ENUM_ENT(ELF, EM_ARC ),
474 LLVM_READOBJ_ENUM_ENT(ELF, EM_H8_300 ),
475 LLVM_READOBJ_ENUM_ENT(ELF, EM_H8_300H ),
476 LLVM_READOBJ_ENUM_ENT(ELF, EM_H8S ),
477 LLVM_READOBJ_ENUM_ENT(ELF, EM_H8_500 ),
478 LLVM_READOBJ_ENUM_ENT(ELF, EM_IA_64 ),
479 LLVM_READOBJ_ENUM_ENT(ELF, EM_MIPS_X ),
480 LLVM_READOBJ_ENUM_ENT(ELF, EM_COLDFIRE ),
481 LLVM_READOBJ_ENUM_ENT(ELF, EM_68HC12 ),
482 LLVM_READOBJ_ENUM_ENT(ELF, EM_MMA ),
483 LLVM_READOBJ_ENUM_ENT(ELF, EM_PCP ),
484 LLVM_READOBJ_ENUM_ENT(ELF, EM_NCPU ),
485 LLVM_READOBJ_ENUM_ENT(ELF, EM_NDR1 ),
486 LLVM_READOBJ_ENUM_ENT(ELF, EM_STARCORE ),
487 LLVM_READOBJ_ENUM_ENT(ELF, EM_ME16 ),
488 LLVM_READOBJ_ENUM_ENT(ELF, EM_ST100 ),
489 LLVM_READOBJ_ENUM_ENT(ELF, EM_TINYJ ),
490 LLVM_READOBJ_ENUM_ENT(ELF, EM_X86_64 ),
491 LLVM_READOBJ_ENUM_ENT(ELF, EM_PDSP ),
492 LLVM_READOBJ_ENUM_ENT(ELF, EM_PDP10 ),
493 LLVM_READOBJ_ENUM_ENT(ELF, EM_PDP11 ),
494 LLVM_READOBJ_ENUM_ENT(ELF, EM_FX66 ),
495 LLVM_READOBJ_ENUM_ENT(ELF, EM_ST9PLUS ),
496 LLVM_READOBJ_ENUM_ENT(ELF, EM_ST7 ),
497 LLVM_READOBJ_ENUM_ENT(ELF, EM_68HC16 ),
498 LLVM_READOBJ_ENUM_ENT(ELF, EM_68HC11 ),
499 LLVM_READOBJ_ENUM_ENT(ELF, EM_68HC08 ),
500 LLVM_READOBJ_ENUM_ENT(ELF, EM_68HC05 ),
501 LLVM_READOBJ_ENUM_ENT(ELF, EM_SVX ),
502 LLVM_READOBJ_ENUM_ENT(ELF, EM_ST19 ),
503 LLVM_READOBJ_ENUM_ENT(ELF, EM_VAX ),
504 LLVM_READOBJ_ENUM_ENT(ELF, EM_CRIS ),
505 LLVM_READOBJ_ENUM_ENT(ELF, EM_JAVELIN ),
506 LLVM_READOBJ_ENUM_ENT(ELF, EM_FIREPATH ),
507 LLVM_READOBJ_ENUM_ENT(ELF, EM_ZSP ),
508 LLVM_READOBJ_ENUM_ENT(ELF, EM_MMIX ),
509 LLVM_READOBJ_ENUM_ENT(ELF, EM_HUANY ),
510 LLVM_READOBJ_ENUM_ENT(ELF, EM_PRISM ),
511 LLVM_READOBJ_ENUM_ENT(ELF, EM_AVR ),
512 LLVM_READOBJ_ENUM_ENT(ELF, EM_FR30 ),
513 LLVM_READOBJ_ENUM_ENT(ELF, EM_D10V ),
514 LLVM_READOBJ_ENUM_ENT(ELF, EM_D30V ),
515 LLVM_READOBJ_ENUM_ENT(ELF, EM_V850 ),
516 LLVM_READOBJ_ENUM_ENT(ELF, EM_M32R ),
517 LLVM_READOBJ_ENUM_ENT(ELF, EM_MN10300 ),
518 LLVM_READOBJ_ENUM_ENT(ELF, EM_MN10200 ),
519 LLVM_READOBJ_ENUM_ENT(ELF, EM_PJ ),
520 LLVM_READOBJ_ENUM_ENT(ELF, EM_OPENRISC ),
521 LLVM_READOBJ_ENUM_ENT(ELF, EM_ARC_COMPACT ),
522 LLVM_READOBJ_ENUM_ENT(ELF, EM_XTENSA ),
523 LLVM_READOBJ_ENUM_ENT(ELF, EM_VIDEOCORE ),
524 LLVM_READOBJ_ENUM_ENT(ELF, EM_TMM_GPP ),
525 LLVM_READOBJ_ENUM_ENT(ELF, EM_NS32K ),
526 LLVM_READOBJ_ENUM_ENT(ELF, EM_TPC ),
527 LLVM_READOBJ_ENUM_ENT(ELF, EM_SNP1K ),
528 LLVM_READOBJ_ENUM_ENT(ELF, EM_ST200 ),
529 LLVM_READOBJ_ENUM_ENT(ELF, EM_IP2K ),
530 LLVM_READOBJ_ENUM_ENT(ELF, EM_MAX ),
531 LLVM_READOBJ_ENUM_ENT(ELF, EM_CR ),
532 LLVM_READOBJ_ENUM_ENT(ELF, EM_F2MC16 ),
533 LLVM_READOBJ_ENUM_ENT(ELF, EM_MSP430 ),
534 LLVM_READOBJ_ENUM_ENT(ELF, EM_BLACKFIN ),
535 LLVM_READOBJ_ENUM_ENT(ELF, EM_SE_C33 ),
536 LLVM_READOBJ_ENUM_ENT(ELF, EM_SEP ),
537 LLVM_READOBJ_ENUM_ENT(ELF, EM_ARCA ),
538 LLVM_READOBJ_ENUM_ENT(ELF, EM_UNICORE ),
539 LLVM_READOBJ_ENUM_ENT(ELF, EM_EXCESS ),
540 LLVM_READOBJ_ENUM_ENT(ELF, EM_DXP ),
541 LLVM_READOBJ_ENUM_ENT(ELF, EM_ALTERA_NIOS2 ),
542 LLVM_READOBJ_ENUM_ENT(ELF, EM_CRX ),
543 LLVM_READOBJ_ENUM_ENT(ELF, EM_XGATE ),
544 LLVM_READOBJ_ENUM_ENT(ELF, EM_C166 ),
545 LLVM_READOBJ_ENUM_ENT(ELF, EM_M16C ),
546 LLVM_READOBJ_ENUM_ENT(ELF, EM_DSPIC30F ),
547 LLVM_READOBJ_ENUM_ENT(ELF, EM_CE ),
548 LLVM_READOBJ_ENUM_ENT(ELF, EM_M32C ),
549 LLVM_READOBJ_ENUM_ENT(ELF, EM_TSK3000 ),
550 LLVM_READOBJ_ENUM_ENT(ELF, EM_RS08 ),
551 LLVM_READOBJ_ENUM_ENT(ELF, EM_SHARC ),
552 LLVM_READOBJ_ENUM_ENT(ELF, EM_ECOG2 ),
553 LLVM_READOBJ_ENUM_ENT(ELF, EM_SCORE7 ),
554 LLVM_READOBJ_ENUM_ENT(ELF, EM_DSP24 ),
555 LLVM_READOBJ_ENUM_ENT(ELF, EM_VIDEOCORE3 ),
556 LLVM_READOBJ_ENUM_ENT(ELF, EM_LATTICEMICO32),
557 LLVM_READOBJ_ENUM_ENT(ELF, EM_SE_C17 ),
558 LLVM_READOBJ_ENUM_ENT(ELF, EM_TI_C6000 ),
559 LLVM_READOBJ_ENUM_ENT(ELF, EM_TI_C2000 ),
560 LLVM_READOBJ_ENUM_ENT(ELF, EM_TI_C5500 ),
561 LLVM_READOBJ_ENUM_ENT(ELF, EM_MMDSP_PLUS ),
562 LLVM_READOBJ_ENUM_ENT(ELF, EM_CYPRESS_M8C ),
563 LLVM_READOBJ_ENUM_ENT(ELF, EM_R32C ),
564 LLVM_READOBJ_ENUM_ENT(ELF, EM_TRIMEDIA ),
565 LLVM_READOBJ_ENUM_ENT(ELF, EM_HEXAGON ),
566 LLVM_READOBJ_ENUM_ENT(ELF, EM_8051 ),
567 LLVM_READOBJ_ENUM_ENT(ELF, EM_STXP7X ),
568 LLVM_READOBJ_ENUM_ENT(ELF, EM_NDS32 ),
569 LLVM_READOBJ_ENUM_ENT(ELF, EM_ECOG1 ),
570 LLVM_READOBJ_ENUM_ENT(ELF, EM_ECOG1X ),
571 LLVM_READOBJ_ENUM_ENT(ELF, EM_MAXQ30 ),
572 LLVM_READOBJ_ENUM_ENT(ELF, EM_XIMO16 ),
573 LLVM_READOBJ_ENUM_ENT(ELF, EM_MANIK ),
574 LLVM_READOBJ_ENUM_ENT(ELF, EM_CRAYNV2 ),
575 LLVM_READOBJ_ENUM_ENT(ELF, EM_RX ),
576 LLVM_READOBJ_ENUM_ENT(ELF, EM_METAG ),
577 LLVM_READOBJ_ENUM_ENT(ELF, EM_MCST_ELBRUS ),
578 LLVM_READOBJ_ENUM_ENT(ELF, EM_ECOG16 ),
579 LLVM_READOBJ_ENUM_ENT(ELF, EM_CR16 ),
580 LLVM_READOBJ_ENUM_ENT(ELF, EM_ETPU ),
581 LLVM_READOBJ_ENUM_ENT(ELF, EM_SLE9X ),
582 LLVM_READOBJ_ENUM_ENT(ELF, EM_L10M ),
583 LLVM_READOBJ_ENUM_ENT(ELF, EM_K10M ),
584 LLVM_READOBJ_ENUM_ENT(ELF, EM_AARCH64 ),
585 LLVM_READOBJ_ENUM_ENT(ELF, EM_AVR32 ),
586 LLVM_READOBJ_ENUM_ENT(ELF, EM_STM8 ),
587 LLVM_READOBJ_ENUM_ENT(ELF, EM_TILE64 ),
588 LLVM_READOBJ_ENUM_ENT(ELF, EM_TILEPRO ),
589 LLVM_READOBJ_ENUM_ENT(ELF, EM_CUDA ),
590 LLVM_READOBJ_ENUM_ENT(ELF, EM_TILEGX ),
591 LLVM_READOBJ_ENUM_ENT(ELF, EM_CLOUDSHIELD ),
592 LLVM_READOBJ_ENUM_ENT(ELF, EM_COREA_1ST ),
593 LLVM_READOBJ_ENUM_ENT(ELF, EM_COREA_2ND ),
594 LLVM_READOBJ_ENUM_ENT(ELF, EM_ARC_COMPACT2 ),
595 LLVM_READOBJ_ENUM_ENT(ELF, EM_OPEN8 ),
596 LLVM_READOBJ_ENUM_ENT(ELF, EM_RL78 ),
597 LLVM_READOBJ_ENUM_ENT(ELF, EM_VIDEOCORE5 ),
598 LLVM_READOBJ_ENUM_ENT(ELF, EM_78KOR ),
599 LLVM_READOBJ_ENUM_ENT(ELF, EM_56800EX ),
600 LLVM_READOBJ_ENUM_ENT(ELF, EM_AMDGPU )
603 static const EnumEntry<unsigned> ElfSymbolBindings[] = {
604 { "Local", ELF::STB_LOCAL },
605 { "Global", ELF::STB_GLOBAL },
606 { "Weak", ELF::STB_WEAK },
607 { "Unique", ELF::STB_GNU_UNIQUE }
610 static const EnumEntry<unsigned> ElfSymbolTypes[] = {
611 { "None", ELF::STT_NOTYPE },
612 { "Object", ELF::STT_OBJECT },
613 { "Function", ELF::STT_FUNC },
614 { "Section", ELF::STT_SECTION },
615 { "File", ELF::STT_FILE },
616 { "Common", ELF::STT_COMMON },
617 { "TLS", ELF::STT_TLS },
618 { "GNU_IFunc", ELF::STT_GNU_IFUNC }
621 static const char *getElfSectionType(unsigned Arch, unsigned Type) {
625 LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_EXIDX);
626 LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_PREEMPTMAP);
627 LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_ATTRIBUTES);
628 LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_DEBUGOVERLAY);
629 LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_OVERLAYSECTION);
631 case ELF::EM_HEXAGON:
632 switch (Type) { LLVM_READOBJ_ENUM_CASE(ELF, SHT_HEX_ORDERED); }
634 switch (Type) { LLVM_READOBJ_ENUM_CASE(ELF, SHT_X86_64_UNWIND); }
636 case ELF::EM_MIPS_RS3_LE:
638 LLVM_READOBJ_ENUM_CASE(ELF, SHT_MIPS_REGINFO);
639 LLVM_READOBJ_ENUM_CASE(ELF, SHT_MIPS_OPTIONS);
640 LLVM_READOBJ_ENUM_CASE(ELF, SHT_MIPS_ABIFLAGS);
645 LLVM_READOBJ_ENUM_CASE(ELF, SHT_NULL );
646 LLVM_READOBJ_ENUM_CASE(ELF, SHT_PROGBITS );
647 LLVM_READOBJ_ENUM_CASE(ELF, SHT_SYMTAB );
648 LLVM_READOBJ_ENUM_CASE(ELF, SHT_STRTAB );
649 LLVM_READOBJ_ENUM_CASE(ELF, SHT_RELA );
650 LLVM_READOBJ_ENUM_CASE(ELF, SHT_HASH );
651 LLVM_READOBJ_ENUM_CASE(ELF, SHT_DYNAMIC );
652 LLVM_READOBJ_ENUM_CASE(ELF, SHT_NOTE );
653 LLVM_READOBJ_ENUM_CASE(ELF, SHT_NOBITS );
654 LLVM_READOBJ_ENUM_CASE(ELF, SHT_REL );
655 LLVM_READOBJ_ENUM_CASE(ELF, SHT_SHLIB );
656 LLVM_READOBJ_ENUM_CASE(ELF, SHT_DYNSYM );
657 LLVM_READOBJ_ENUM_CASE(ELF, SHT_INIT_ARRAY );
658 LLVM_READOBJ_ENUM_CASE(ELF, SHT_FINI_ARRAY );
659 LLVM_READOBJ_ENUM_CASE(ELF, SHT_PREINIT_ARRAY );
660 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GROUP );
661 LLVM_READOBJ_ENUM_CASE(ELF, SHT_SYMTAB_SHNDX );
662 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_ATTRIBUTES );
663 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_HASH );
664 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_verdef );
665 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_verneed );
666 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_versym );
671 static const EnumEntry<unsigned> ElfSectionFlags[] = {
672 LLVM_READOBJ_ENUM_ENT(ELF, SHF_WRITE ),
673 LLVM_READOBJ_ENUM_ENT(ELF, SHF_ALLOC ),
674 LLVM_READOBJ_ENUM_ENT(ELF, SHF_EXCLUDE ),
675 LLVM_READOBJ_ENUM_ENT(ELF, SHF_EXECINSTR ),
676 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MERGE ),
677 LLVM_READOBJ_ENUM_ENT(ELF, SHF_STRINGS ),
678 LLVM_READOBJ_ENUM_ENT(ELF, SHF_INFO_LINK ),
679 LLVM_READOBJ_ENUM_ENT(ELF, SHF_LINK_ORDER ),
680 LLVM_READOBJ_ENUM_ENT(ELF, SHF_OS_NONCONFORMING),
681 LLVM_READOBJ_ENUM_ENT(ELF, SHF_GROUP ),
682 LLVM_READOBJ_ENUM_ENT(ELF, SHF_TLS ),
683 LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_CP_SECTION),
684 LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_DP_SECTION),
685 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NOSTRIP )
688 static const char *getElfSegmentType(unsigned Arch, unsigned Type) {
689 // Check potentially overlapped processor-specific
690 // program header type.
694 LLVM_READOBJ_ENUM_CASE(ELF, PT_ARM_EXIDX);
697 case ELF::EM_MIPS_RS3_LE:
699 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_REGINFO);
700 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_RTPROC);
701 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_OPTIONS);
702 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_ABIFLAGS);
707 LLVM_READOBJ_ENUM_CASE(ELF, PT_NULL );
708 LLVM_READOBJ_ENUM_CASE(ELF, PT_LOAD );
709 LLVM_READOBJ_ENUM_CASE(ELF, PT_DYNAMIC);
710 LLVM_READOBJ_ENUM_CASE(ELF, PT_INTERP );
711 LLVM_READOBJ_ENUM_CASE(ELF, PT_NOTE );
712 LLVM_READOBJ_ENUM_CASE(ELF, PT_SHLIB );
713 LLVM_READOBJ_ENUM_CASE(ELF, PT_PHDR );
714 LLVM_READOBJ_ENUM_CASE(ELF, PT_TLS );
716 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_EH_FRAME);
717 LLVM_READOBJ_ENUM_CASE(ELF, PT_SUNW_UNWIND);
719 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_STACK);
720 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_RELRO);
725 static const EnumEntry<unsigned> ElfSegmentFlags[] = {
726 LLVM_READOBJ_ENUM_ENT(ELF, PF_X),
727 LLVM_READOBJ_ENUM_ENT(ELF, PF_W),
728 LLVM_READOBJ_ENUM_ENT(ELF, PF_R)
731 static const EnumEntry<unsigned> ElfHeaderMipsFlags[] = {
732 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_NOREORDER),
733 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_PIC),
734 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_CPIC),
735 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI2),
736 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_32BITMODE),
737 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_FP64),
738 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_NAN2008),
739 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_O32),
740 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_O64),
741 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_EABI32),
742 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_EABI64),
743 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_3900),
744 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4010),
745 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4100),
746 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4650),
747 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4120),
748 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4111),
749 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_SB1),
750 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON),
751 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_XLR),
752 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON2),
753 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON3),
754 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5400),
755 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5900),
756 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5500),
757 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_9000),
758 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS2E),
759 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS2F),
760 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS3A),
761 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MICROMIPS),
762 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_ASE_M16),
763 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_ASE_MDMX),
764 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_1),
765 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_2),
766 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_3),
767 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_4),
768 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_5),
769 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32),
770 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64),
771 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32R2),
772 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64R2),
773 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32R6),
774 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64R6)
777 template <typename ELFT>
778 ELFDumper<ELFT>::ELFDumper(const ELFFile<ELFT> *Obj, StreamWriter &Writer)
779 : ObjDumper(Writer), Obj(Obj) {
781 SmallVector<const Elf_Phdr *, 4> LoadSegments;
782 for (const Elf_Phdr &Phdr : Obj->program_headers()) {
783 if (Phdr.p_type == ELF::PT_DYNAMIC) {
784 DynamicRegion.Addr = Obj->base() + Phdr.p_offset;
785 uint64_t Size = Phdr.p_filesz;
786 if (Size % sizeof(Elf_Dyn))
787 report_fatal_error("Invalid dynamic table size");
788 DynamicRegion.Size = Phdr.p_filesz;
791 if (Phdr.p_type != ELF::PT_LOAD || Phdr.p_filesz == 0)
793 LoadSegments.push_back(&Phdr);
796 auto toMappedAddr = [&](uint64_t VAddr) -> const uint8_t * {
797 const Elf_Phdr **I = std::upper_bound(
798 LoadSegments.begin(), LoadSegments.end(), VAddr, compareAddr<ELFT>);
799 if (I == LoadSegments.begin())
800 report_fatal_error("Virtual address is not in any segment");
802 const Elf_Phdr &Phdr = **I;
803 uint64_t Delta = VAddr - Phdr.p_vaddr;
804 if (Delta >= Phdr.p_filesz)
805 report_fatal_error("Virtual address is not in any segment");
806 return Obj->base() + Phdr.p_offset + Delta;
809 uint64_t SONameOffset = 0;
810 const char *StringTableBegin = nullptr;
811 uint64_t StringTableSize = 0;
812 for (const Elf_Dyn &Dyn : dynamic_table()) {
816 reinterpret_cast<const Elf_Hash *>(toMappedAddr(Dyn.getPtr()));
819 DynRelaRegion.Addr = toMappedAddr(Dyn.getPtr());
822 DynRelaRegion.Size = Dyn.getVal();
824 case ELF::DT_RELAENT:
825 DynRelaRegion.EntSize = Dyn.getVal();
828 SONameOffset = Dyn.getVal();
831 StringTableBegin = (const char *)toMappedAddr(Dyn.getPtr());
834 StringTableSize = Dyn.getVal();
838 reinterpret_cast<const Elf_Sym *>(toMappedAddr(Dyn.getPtr()));
842 if (StringTableBegin)
843 DynamicStringTable = StringRef(StringTableBegin, StringTableSize);
845 SOName = getDynamicString(SONameOffset);
847 for (const Elf_Shdr &Sec : Obj->sections()) {
848 switch (Sec.sh_type) {
849 case ELF::SHT_GNU_versym:
850 if (dot_gnu_version_sec != nullptr)
851 reportError("Multiple SHT_GNU_versym");
852 dot_gnu_version_sec = &Sec;
854 case ELF::SHT_GNU_verdef:
855 if (dot_gnu_version_d_sec != nullptr)
856 reportError("Multiple SHT_GNU_verdef");
857 dot_gnu_version_d_sec = &Sec;
859 case ELF::SHT_GNU_verneed:
860 if (dot_gnu_version_r_sec != nullptr)
861 reportError("Multilpe SHT_GNU_verneed");
862 dot_gnu_version_r_sec = &Sec;
868 template <typename ELFT>
869 const typename ELFDumper<ELFT>::Elf_Rela *
870 ELFDumper<ELFT>::dyn_rela_begin() const {
871 if (DynRelaRegion.Size && DynRelaRegion.EntSize != sizeof(Elf_Rela))
872 report_fatal_error("Invalid relocation entry size");
873 return reinterpret_cast<const Elf_Rela *>(DynRelaRegion.Addr);
876 template <typename ELFT>
877 const typename ELFDumper<ELFT>::Elf_Rela *
878 ELFDumper<ELFT>::dyn_rela_end() const {
879 uint64_t Size = DynRelaRegion.Size;
880 if (Size % sizeof(Elf_Rela))
881 report_fatal_error("Invalid relocation table size");
882 return dyn_rela_begin() + Size / sizeof(Elf_Rela);
885 template <typename ELFT>
886 typename ELFDumper<ELFT>::Elf_Rela_Range ELFDumper<ELFT>::dyn_relas() const {
887 return make_range(dyn_rela_begin(), dyn_rela_end());
890 template <typename ELFT>
891 const typename ELFDumper<ELFT>::Elf_Dyn *
892 ELFDumper<ELFT>::dynamic_table_begin() const {
893 return reinterpret_cast<const Elf_Dyn *>(DynamicRegion.Addr);
896 template <typename ELFT>
897 const typename ELFDumper<ELFT>::Elf_Dyn *
898 ELFDumper<ELFT>::dynamic_table_end() const {
899 uint64_t Size = DynamicRegion.Size;
900 return dynamic_table_begin() + Size / sizeof(Elf_Dyn);
904 void ELFDumper<ELFT>::printFileHeaders() {
905 const Elf_Ehdr *Header = Obj->getHeader();
908 DictScope D(W, "ElfHeader");
910 DictScope D(W, "Ident");
911 W.printBinary("Magic", makeArrayRef(Header->e_ident).slice(ELF::EI_MAG0,
913 W.printEnum ("Class", Header->e_ident[ELF::EI_CLASS],
914 makeArrayRef(ElfClass));
915 W.printEnum ("DataEncoding", Header->e_ident[ELF::EI_DATA],
916 makeArrayRef(ElfDataEncoding));
917 W.printNumber("FileVersion", Header->e_ident[ELF::EI_VERSION]);
919 // Handle architecture specific OS/ABI values.
920 if (Header->e_machine == ELF::EM_AMDGPU &&
921 Header->e_ident[ELF::EI_OSABI] == ELF::ELFOSABI_AMDGPU_HSA)
922 W.printHex("OS/ABI", "AMDGPU_HSA", ELF::ELFOSABI_AMDGPU_HSA);
924 W.printEnum ("OS/ABI", Header->e_ident[ELF::EI_OSABI],
925 makeArrayRef(ElfOSABI));
926 W.printNumber("ABIVersion", Header->e_ident[ELF::EI_ABIVERSION]);
927 W.printBinary("Unused", makeArrayRef(Header->e_ident).slice(ELF::EI_PAD));
930 W.printEnum ("Type", Header->e_type, makeArrayRef(ElfObjectFileType));
931 W.printEnum ("Machine", Header->e_machine, makeArrayRef(ElfMachineType));
932 W.printNumber("Version", Header->e_version);
933 W.printHex ("Entry", Header->e_entry);
934 W.printHex ("ProgramHeaderOffset", Header->e_phoff);
935 W.printHex ("SectionHeaderOffset", Header->e_shoff);
936 if (Header->e_machine == EM_MIPS)
937 W.printFlags("Flags", Header->e_flags, makeArrayRef(ElfHeaderMipsFlags),
938 unsigned(ELF::EF_MIPS_ARCH), unsigned(ELF::EF_MIPS_ABI),
939 unsigned(ELF::EF_MIPS_MACH));
941 W.printFlags("Flags", Header->e_flags);
942 W.printNumber("HeaderSize", Header->e_ehsize);
943 W.printNumber("ProgramHeaderEntrySize", Header->e_phentsize);
944 W.printNumber("ProgramHeaderCount", Header->e_phnum);
945 W.printNumber("SectionHeaderEntrySize", Header->e_shentsize);
946 W.printNumber("SectionHeaderCount", Header->e_shnum);
947 W.printNumber("StringTableSectionIndex", Header->e_shstrndx);
952 void ELFDumper<ELFT>::printSections() {
953 ListScope SectionsD(W, "Sections");
955 int SectionIndex = -1;
956 for (const Elf_Shdr &Sec : Obj->sections()) {
959 StringRef Name = errorOrDefault(Obj->getSectionName(&Sec));
961 DictScope SectionD(W, "Section");
962 W.printNumber("Index", SectionIndex);
963 W.printNumber("Name", Name, Sec.sh_name);
965 getElfSectionType(Obj->getHeader()->e_machine, Sec.sh_type),
967 W.printFlags("Flags", Sec.sh_flags, makeArrayRef(ElfSectionFlags));
968 W.printHex("Address", Sec.sh_addr);
969 W.printHex("Offset", Sec.sh_offset);
970 W.printNumber("Size", Sec.sh_size);
971 W.printNumber("Link", Sec.sh_link);
972 W.printNumber("Info", Sec.sh_info);
973 W.printNumber("AddressAlignment", Sec.sh_addralign);
974 W.printNumber("EntrySize", Sec.sh_entsize);
976 if (opts::SectionRelocations) {
977 ListScope D(W, "Relocations");
978 printRelocations(&Sec);
981 if (opts::SectionSymbols) {
982 ListScope D(W, "Symbols");
983 const Elf_Shdr *Symtab = Obj->getDotSymtabSec();
984 ErrorOr<StringRef> StrTableOrErr = Obj->getStringTableForSymtab(*Symtab);
985 error(StrTableOrErr.getError());
986 StringRef StrTable = *StrTableOrErr;
988 for (const Elf_Sym &Sym : Obj->symbols()) {
989 ErrorOr<const Elf_Shdr *> SymSec = Obj->getSection(&Sym);
993 printSymbol(&Sym, StrTable, false);
997 if (opts::SectionData && Sec.sh_type != ELF::SHT_NOBITS) {
998 ArrayRef<uint8_t> Data = errorOrDefault(Obj->getSectionContents(&Sec));
999 W.printBinaryBlock("SectionData",
1000 StringRef((const char *)Data.data(), Data.size()));
1005 template<class ELFT>
1006 void ELFDumper<ELFT>::printRelocations() {
1007 ListScope D(W, "Relocations");
1009 int SectionNumber = -1;
1010 for (const Elf_Shdr &Sec : Obj->sections()) {
1013 if (Sec.sh_type != ELF::SHT_REL && Sec.sh_type != ELF::SHT_RELA)
1016 StringRef Name = errorOrDefault(Obj->getSectionName(&Sec));
1018 W.startLine() << "Section (" << SectionNumber << ") " << Name << " {\n";
1021 printRelocations(&Sec);
1024 W.startLine() << "}\n";
1028 template<class ELFT>
1029 void ELFDumper<ELFT>::printDynamicRelocations() {
1030 W.startLine() << "Dynamic Relocations {\n";
1032 for (const Elf_Rela &Rel : dyn_relas()) {
1033 SmallString<32> RelocName;
1034 Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName);
1035 StringRef SymbolName;
1036 uint32_t SymIndex = Rel.getSymbol(Obj->isMips64EL());
1037 const Elf_Sym *Sym = DynSymStart + SymIndex;
1038 SymbolName = errorOrDefault(Sym->getName(DynamicStringTable));
1039 if (opts::ExpandRelocs) {
1040 DictScope Group(W, "Relocation");
1041 W.printHex("Offset", Rel.r_offset);
1042 W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL()));
1043 W.printString("Symbol", SymbolName.size() > 0 ? SymbolName : "-");
1044 W.printHex("Addend", Rel.r_addend);
1047 raw_ostream& OS = W.startLine();
1048 OS << W.hex(Rel.r_offset) << " " << RelocName << " "
1049 << (SymbolName.size() > 0 ? SymbolName : "-") << " "
1050 << W.hex(Rel.r_addend) << "\n";
1054 W.startLine() << "}\n";
1057 template <class ELFT>
1058 void ELFDumper<ELFT>::printRelocations(const Elf_Shdr *Sec) {
1059 switch (Sec->sh_type) {
1061 for (const Elf_Rel &R : Obj->rels(Sec)) {
1063 Rela.r_offset = R.r_offset;
1064 Rela.r_info = R.r_info;
1066 printRelocation(Sec, Rela);
1070 for (const Elf_Rela &R : Obj->relas(Sec))
1071 printRelocation(Sec, R);
1076 template <class ELFT>
1077 void ELFDumper<ELFT>::printRelocation(const Elf_Shdr *Sec, Elf_Rela Rel) {
1078 SmallString<32> RelocName;
1079 Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName);
1080 StringRef TargetName;
1081 std::pair<const Elf_Shdr *, const Elf_Sym *> Sym =
1082 Obj->getRelocationSymbol(Sec, &Rel);
1083 if (Sym.second && Sym.second->getType() == ELF::STT_SECTION) {
1084 ErrorOr<const Elf_Shdr *> Sec = Obj->getSection(Sym.second);
1085 error(Sec.getError());
1086 ErrorOr<StringRef> SecName = Obj->getSectionName(*Sec);
1088 TargetName = SecName.get();
1089 } else if (Sym.first) {
1090 const Elf_Shdr *SymTable = Sym.first;
1091 ErrorOr<StringRef> StrTableOrErr = Obj->getStringTableForSymtab(*SymTable);
1092 error(StrTableOrErr.getError());
1093 TargetName = errorOrDefault(Sym.second->getName(*StrTableOrErr));
1096 if (opts::ExpandRelocs) {
1097 DictScope Group(W, "Relocation");
1098 W.printHex("Offset", Rel.r_offset);
1099 W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL()));
1100 W.printNumber("Symbol", TargetName.size() > 0 ? TargetName : "-",
1101 Rel.getSymbol(Obj->isMips64EL()));
1102 W.printHex("Addend", Rel.r_addend);
1104 raw_ostream& OS = W.startLine();
1105 OS << W.hex(Rel.r_offset) << " " << RelocName << " "
1106 << (TargetName.size() > 0 ? TargetName : "-") << " "
1107 << W.hex(Rel.r_addend) << "\n";
1111 template<class ELFT>
1112 void ELFDumper<ELFT>::printSymbols() {
1113 ListScope Group(W, "Symbols");
1115 const Elf_Shdr *Symtab = Obj->getDotSymtabSec();
1116 ErrorOr<StringRef> StrTableOrErr = Obj->getStringTableForSymtab(*Symtab);
1117 error(StrTableOrErr.getError());
1118 StringRef StrTable = *StrTableOrErr;
1119 for (const Elf_Sym &Sym : Obj->symbols())
1120 printSymbol(&Sym, StrTable, false);
1123 template<class ELFT>
1124 void ELFDumper<ELFT>::printDynamicSymbols() {
1125 ListScope Group(W, "DynamicSymbols");
1127 const Elf_Shdr *Symtab = Obj->getDotDynSymSec();
1128 ErrorOr<StringRef> StrTableOrErr = Obj->getStringTableForSymtab(*Symtab);
1129 error(StrTableOrErr.getError());
1130 StringRef StrTable = *StrTableOrErr;
1131 for (const Elf_Sym &Sym : Obj->symbols(Symtab))
1132 printSymbol(&Sym, StrTable, true);
1135 template <class ELFT>
1136 void ELFDumper<ELFT>::printSymbol(const Elf_Sym *Symbol, StringRef StrTable,
1138 unsigned SectionIndex = 0;
1139 StringRef SectionName;
1140 getSectionNameIndex(*Obj, Symbol, SectionName, SectionIndex);
1141 std::string FullSymbolName = getFullSymbolName(Symbol, StrTable, IsDynamic);
1143 DictScope D(W, "Symbol");
1144 W.printNumber("Name", FullSymbolName, Symbol->st_name);
1145 W.printHex ("Value", Symbol->st_value);
1146 W.printNumber("Size", Symbol->st_size);
1147 W.printEnum ("Binding", Symbol->getBinding(),
1148 makeArrayRef(ElfSymbolBindings));
1149 W.printEnum ("Type", Symbol->getType(), makeArrayRef(ElfSymbolTypes));
1150 W.printNumber("Other", Symbol->st_other);
1151 W.printHex("Section", SectionName, SectionIndex);
1154 #define LLVM_READOBJ_TYPE_CASE(name) \
1155 case DT_##name: return #name
1157 static const char *getTypeString(uint64_t Type) {
1159 LLVM_READOBJ_TYPE_CASE(BIND_NOW);
1160 LLVM_READOBJ_TYPE_CASE(DEBUG);
1161 LLVM_READOBJ_TYPE_CASE(FINI);
1162 LLVM_READOBJ_TYPE_CASE(FINI_ARRAY);
1163 LLVM_READOBJ_TYPE_CASE(FINI_ARRAYSZ);
1164 LLVM_READOBJ_TYPE_CASE(FLAGS);
1165 LLVM_READOBJ_TYPE_CASE(FLAGS_1);
1166 LLVM_READOBJ_TYPE_CASE(HASH);
1167 LLVM_READOBJ_TYPE_CASE(INIT);
1168 LLVM_READOBJ_TYPE_CASE(INIT_ARRAY);
1169 LLVM_READOBJ_TYPE_CASE(INIT_ARRAYSZ);
1170 LLVM_READOBJ_TYPE_CASE(PREINIT_ARRAY);
1171 LLVM_READOBJ_TYPE_CASE(PREINIT_ARRAYSZ);
1172 LLVM_READOBJ_TYPE_CASE(JMPREL);
1173 LLVM_READOBJ_TYPE_CASE(NEEDED);
1174 LLVM_READOBJ_TYPE_CASE(NULL);
1175 LLVM_READOBJ_TYPE_CASE(PLTGOT);
1176 LLVM_READOBJ_TYPE_CASE(PLTREL);
1177 LLVM_READOBJ_TYPE_CASE(PLTRELSZ);
1178 LLVM_READOBJ_TYPE_CASE(REL);
1179 LLVM_READOBJ_TYPE_CASE(RELA);
1180 LLVM_READOBJ_TYPE_CASE(RELENT);
1181 LLVM_READOBJ_TYPE_CASE(RELSZ);
1182 LLVM_READOBJ_TYPE_CASE(RELAENT);
1183 LLVM_READOBJ_TYPE_CASE(RELASZ);
1184 LLVM_READOBJ_TYPE_CASE(RPATH);
1185 LLVM_READOBJ_TYPE_CASE(RUNPATH);
1186 LLVM_READOBJ_TYPE_CASE(SONAME);
1187 LLVM_READOBJ_TYPE_CASE(STRSZ);
1188 LLVM_READOBJ_TYPE_CASE(STRTAB);
1189 LLVM_READOBJ_TYPE_CASE(SYMBOLIC);
1190 LLVM_READOBJ_TYPE_CASE(SYMENT);
1191 LLVM_READOBJ_TYPE_CASE(SYMTAB);
1192 LLVM_READOBJ_TYPE_CASE(TEXTREL);
1193 LLVM_READOBJ_TYPE_CASE(VERNEED);
1194 LLVM_READOBJ_TYPE_CASE(VERNEEDNUM);
1195 LLVM_READOBJ_TYPE_CASE(VERSYM);
1196 LLVM_READOBJ_TYPE_CASE(RELCOUNT);
1197 LLVM_READOBJ_TYPE_CASE(GNU_HASH);
1198 LLVM_READOBJ_TYPE_CASE(MIPS_RLD_VERSION);
1199 LLVM_READOBJ_TYPE_CASE(MIPS_RLD_MAP_REL);
1200 LLVM_READOBJ_TYPE_CASE(MIPS_FLAGS);
1201 LLVM_READOBJ_TYPE_CASE(MIPS_BASE_ADDRESS);
1202 LLVM_READOBJ_TYPE_CASE(MIPS_LOCAL_GOTNO);
1203 LLVM_READOBJ_TYPE_CASE(MIPS_SYMTABNO);
1204 LLVM_READOBJ_TYPE_CASE(MIPS_UNREFEXTNO);
1205 LLVM_READOBJ_TYPE_CASE(MIPS_GOTSYM);
1206 LLVM_READOBJ_TYPE_CASE(MIPS_RLD_MAP);
1207 LLVM_READOBJ_TYPE_CASE(MIPS_PLTGOT);
1208 LLVM_READOBJ_TYPE_CASE(MIPS_OPTIONS);
1209 default: return "unknown";
1213 #undef LLVM_READOBJ_TYPE_CASE
1215 #define LLVM_READOBJ_DT_FLAG_ENT(prefix, enum) \
1216 { #enum, prefix##_##enum }
1218 static const EnumEntry<unsigned> ElfDynamicDTFlags[] = {
1219 LLVM_READOBJ_DT_FLAG_ENT(DF, ORIGIN),
1220 LLVM_READOBJ_DT_FLAG_ENT(DF, SYMBOLIC),
1221 LLVM_READOBJ_DT_FLAG_ENT(DF, TEXTREL),
1222 LLVM_READOBJ_DT_FLAG_ENT(DF, BIND_NOW),
1223 LLVM_READOBJ_DT_FLAG_ENT(DF, STATIC_TLS)
1226 static const EnumEntry<unsigned> ElfDynamicDTFlags1[] = {
1227 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOW),
1228 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAL),
1229 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GROUP),
1230 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODELETE),
1231 LLVM_READOBJ_DT_FLAG_ENT(DF_1, LOADFLTR),
1232 LLVM_READOBJ_DT_FLAG_ENT(DF_1, INITFIRST),
1233 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOOPEN),
1234 LLVM_READOBJ_DT_FLAG_ENT(DF_1, ORIGIN),
1235 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DIRECT),
1236 LLVM_READOBJ_DT_FLAG_ENT(DF_1, TRANS),
1237 LLVM_READOBJ_DT_FLAG_ENT(DF_1, INTERPOSE),
1238 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODEFLIB),
1239 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODUMP),
1240 LLVM_READOBJ_DT_FLAG_ENT(DF_1, CONFALT),
1241 LLVM_READOBJ_DT_FLAG_ENT(DF_1, ENDFILTEE),
1242 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DISPRELDNE),
1243 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODIRECT),
1244 LLVM_READOBJ_DT_FLAG_ENT(DF_1, IGNMULDEF),
1245 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOKSYMS),
1246 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOHDR),
1247 LLVM_READOBJ_DT_FLAG_ENT(DF_1, EDITED),
1248 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NORELOC),
1249 LLVM_READOBJ_DT_FLAG_ENT(DF_1, SYMINTPOSE),
1250 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAUDIT),
1251 LLVM_READOBJ_DT_FLAG_ENT(DF_1, SINGLETON)
1254 static const EnumEntry<unsigned> ElfDynamicDTMipsFlags[] = {
1255 LLVM_READOBJ_DT_FLAG_ENT(RHF, NONE),
1256 LLVM_READOBJ_DT_FLAG_ENT(RHF, QUICKSTART),
1257 LLVM_READOBJ_DT_FLAG_ENT(RHF, NOTPOT),
1258 LLVM_READOBJ_DT_FLAG_ENT(RHS, NO_LIBRARY_REPLACEMENT),
1259 LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_MOVE),
1260 LLVM_READOBJ_DT_FLAG_ENT(RHF, SGI_ONLY),
1261 LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_INIT),
1262 LLVM_READOBJ_DT_FLAG_ENT(RHF, DELTA_C_PLUS_PLUS),
1263 LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_START_INIT),
1264 LLVM_READOBJ_DT_FLAG_ENT(RHF, PIXIE),
1265 LLVM_READOBJ_DT_FLAG_ENT(RHF, DEFAULT_DELAY_LOAD),
1266 LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTART),
1267 LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTARTED),
1268 LLVM_READOBJ_DT_FLAG_ENT(RHF, CORD),
1269 LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_UNRES_UNDEF),
1270 LLVM_READOBJ_DT_FLAG_ENT(RHF, RLD_ORDER_SAFE)
1273 #undef LLVM_READOBJ_DT_FLAG_ENT
1275 template <typename T, typename TFlag>
1276 void printFlags(T Value, ArrayRef<EnumEntry<TFlag>> Flags, raw_ostream &OS) {
1277 typedef EnumEntry<TFlag> FlagEntry;
1278 typedef SmallVector<FlagEntry, 10> FlagVector;
1279 FlagVector SetFlags;
1281 for (const auto &Flag : Flags) {
1282 if (Flag.Value == 0)
1285 if ((Value & Flag.Value) == Flag.Value)
1286 SetFlags.push_back(Flag);
1289 for (const auto &Flag : SetFlags) {
1290 OS << Flag.Name << " ";
1294 template <class ELFT>
1295 StringRef ELFDumper<ELFT>::getDynamicString(uint64_t Value) const {
1296 if (Value >= DynamicStringTable.size())
1297 reportError("Invalid dynamic string table reference");
1298 return StringRef(DynamicStringTable.data() + Value);
1301 template <class ELFT>
1302 void ELFDumper<ELFT>::printValue(uint64_t Type, uint64_t Value) {
1303 raw_ostream &OS = W.getOStream();
1306 if (Value == DT_REL) {
1309 } else if (Value == DT_RELA) {
1325 case DT_PREINIT_ARRAY:
1331 case DT_MIPS_BASE_ADDRESS:
1332 case DT_MIPS_GOTSYM:
1333 case DT_MIPS_RLD_MAP:
1334 case DT_MIPS_RLD_MAP_REL:
1335 case DT_MIPS_PLTGOT:
1336 case DT_MIPS_OPTIONS:
1337 OS << format("0x%" PRIX64, Value);
1341 case DT_MIPS_RLD_VERSION:
1342 case DT_MIPS_LOCAL_GOTNO:
1343 case DT_MIPS_SYMTABNO:
1344 case DT_MIPS_UNREFEXTNO:
1354 case DT_INIT_ARRAYSZ:
1355 case DT_FINI_ARRAYSZ:
1356 case DT_PREINIT_ARRAYSZ:
1357 OS << Value << " (bytes)";
1360 OS << "SharedLibrary (" << getDynamicString(Value) << ")";
1363 OS << "LibrarySoname (" << getDynamicString(Value) << ")";
1367 OS << getDynamicString(Value);
1370 printFlags(Value, makeArrayRef(ElfDynamicDTMipsFlags), OS);
1373 printFlags(Value, makeArrayRef(ElfDynamicDTFlags), OS);
1376 printFlags(Value, makeArrayRef(ElfDynamicDTFlags1), OS);
1379 OS << format("0x%" PRIX64, Value);
1384 template<class ELFT>
1385 void ELFDumper<ELFT>::printUnwindInfo() {
1386 W.startLine() << "UnwindInfo not implemented.\n";
1390 template <> void ELFDumper<ELFType<support::little, false>>::printUnwindInfo() {
1391 const unsigned Machine = Obj->getHeader()->e_machine;
1392 if (Machine == EM_ARM) {
1393 ARM::EHABI::PrinterContext<ELFType<support::little, false>> Ctx(W, Obj);
1394 return Ctx.PrintUnwindInformation();
1396 W.startLine() << "UnwindInfo not implemented.\n";
1400 template<class ELFT>
1401 void ELFDumper<ELFT>::printDynamicTable() {
1402 auto I = dynamic_table_begin();
1403 auto E = dynamic_table_end();
1409 while (I != E && E->getTag() == ELF::DT_NULL)
1411 if (E->getTag() != ELF::DT_NULL)
1415 ptrdiff_t Total = std::distance(I, E);
1419 raw_ostream &OS = W.getOStream();
1420 W.startLine() << "DynamicSection [ (" << Total << " entries)\n";
1422 bool Is64 = ELFT::Is64Bits;
1425 << " Tag" << (Is64 ? " " : " ") << "Type"
1426 << " " << "Name/Value\n";
1428 const Elf_Dyn &Entry = *I;
1432 << format(Is64 ? "0x%016" PRIX64 : "0x%08" PRIX64, Entry.getTag())
1433 << " " << format("%-21s", getTypeString(Entry.getTag()));
1434 printValue(Entry.getTag(), Entry.getVal());
1438 W.startLine() << "]\n";
1441 template<class ELFT>
1442 void ELFDumper<ELFT>::printNeededLibraries() {
1443 ListScope D(W, "NeededLibraries");
1445 typedef std::vector<StringRef> LibsTy;
1448 for (const auto &Entry : dynamic_table())
1449 if (Entry.d_tag == ELF::DT_NEEDED)
1450 Libs.push_back(getDynamicString(Entry.d_un.d_val));
1452 std::stable_sort(Libs.begin(), Libs.end());
1454 for (LibsTy::const_iterator I = Libs.begin(), E = Libs.end(); I != E; ++I) {
1455 outs() << " " << *I << "\n";
1459 template<class ELFT>
1460 void ELFDumper<ELFT>::printProgramHeaders() {
1461 ListScope L(W, "ProgramHeaders");
1463 for (const Elf_Phdr &Phdr : Obj->program_headers()) {
1464 DictScope P(W, "ProgramHeader");
1466 getElfSegmentType(Obj->getHeader()->e_machine, Phdr.p_type),
1468 W.printHex("Offset", Phdr.p_offset);
1469 W.printHex("VirtualAddress", Phdr.p_vaddr);
1470 W.printHex("PhysicalAddress", Phdr.p_paddr);
1471 W.printNumber("FileSize", Phdr.p_filesz);
1472 W.printNumber("MemSize", Phdr.p_memsz);
1473 W.printFlags("Flags", Phdr.p_flags, makeArrayRef(ElfSegmentFlags));
1474 W.printNumber("Alignment", Phdr.p_align);
1478 template <typename ELFT>
1479 void ELFDumper<ELFT>::printHashTable() {
1480 DictScope D(W, "HashTable");
1483 W.printNumber("Num Buckets", HashTable->nbucket);
1484 W.printNumber("Num Chains", HashTable->nchain);
1485 W.printList("Buckets", HashTable->buckets());
1486 W.printList("Chains", HashTable->chains());
1489 template <typename ELFT> void ELFDumper<ELFT>::printLoadName() {
1490 outs() << "LoadName: " << SOName << '\n';
1493 template <class ELFT>
1494 void ELFDumper<ELFT>::printAttributes() {
1495 W.startLine() << "Attributes not implemented.\n";
1499 template <> void ELFDumper<ELFType<support::little, false>>::printAttributes() {
1500 if (Obj->getHeader()->e_machine != EM_ARM) {
1501 W.startLine() << "Attributes not implemented.\n";
1505 DictScope BA(W, "BuildAttributes");
1506 for (const ELFO::Elf_Shdr &Sec : Obj->sections()) {
1507 if (Sec.sh_type != ELF::SHT_ARM_ATTRIBUTES)
1510 ErrorOr<ArrayRef<uint8_t>> Contents = Obj->getSectionContents(&Sec);
1514 if ((*Contents)[0] != ARMBuildAttrs::Format_Version) {
1515 errs() << "unrecognised FormatVersion: 0x" << utohexstr((*Contents)[0])
1520 W.printHex("FormatVersion", (*Contents)[0]);
1521 if (Contents->size() == 1)
1524 ARMAttributeParser(W).Parse(*Contents);
1530 template <class ELFT> class MipsGOTParser {
1532 typedef object::ELFFile<ELFT> ELFO;
1533 typedef typename ELFO::Elf_Shdr Elf_Shdr;
1534 typedef typename ELFO::Elf_Sym Elf_Sym;
1535 typedef typename ELFO::Elf_Dyn_Range Elf_Dyn_Range;
1536 typedef typename ELFO::Elf_Addr GOTEntry;
1537 typedef typename ELFO::Elf_Rel Elf_Rel;
1538 typedef typename ELFO::Elf_Rela Elf_Rela;
1540 MipsGOTParser(ELFDumper<ELFT> *Dumper, const ELFO *Obj,
1541 Elf_Dyn_Range DynTable, StreamWriter &W);
1547 ELFDumper<ELFT> *Dumper;
1550 llvm::Optional<uint64_t> DtPltGot;
1551 llvm::Optional<uint64_t> DtLocalGotNum;
1552 llvm::Optional<uint64_t> DtGotSym;
1553 llvm::Optional<uint64_t> DtMipsPltGot;
1554 llvm::Optional<uint64_t> DtJmpRel;
1556 std::size_t getGOTTotal(ArrayRef<uint8_t> GOT) const;
1557 const GOTEntry *makeGOTIter(ArrayRef<uint8_t> GOT, std::size_t EntryNum);
1559 void printGotEntry(uint64_t GotAddr, const GOTEntry *BeginIt,
1560 const GOTEntry *It);
1561 void printGlobalGotEntry(uint64_t GotAddr, const GOTEntry *BeginIt,
1562 const GOTEntry *It, const Elf_Sym *Sym,
1563 StringRef StrTable, bool IsDynamic);
1564 void printPLTEntry(uint64_t PLTAddr, const GOTEntry *BeginIt,
1565 const GOTEntry *It, StringRef Purpose);
1566 void printPLTEntry(uint64_t PLTAddr, const GOTEntry *BeginIt,
1567 const GOTEntry *It, StringRef StrTable,
1568 const Elf_Sym *Sym);
1572 template <class ELFT>
1573 MipsGOTParser<ELFT>::MipsGOTParser(ELFDumper<ELFT> *Dumper, const ELFO *Obj,
1574 Elf_Dyn_Range DynTable, StreamWriter &W)
1575 : Dumper(Dumper), Obj(Obj), W(W) {
1576 for (const auto &Entry : DynTable) {
1577 switch (Entry.getTag()) {
1578 case ELF::DT_PLTGOT:
1579 DtPltGot = Entry.getVal();
1581 case ELF::DT_MIPS_LOCAL_GOTNO:
1582 DtLocalGotNum = Entry.getVal();
1584 case ELF::DT_MIPS_GOTSYM:
1585 DtGotSym = Entry.getVal();
1587 case ELF::DT_MIPS_PLTGOT:
1588 DtMipsPltGot = Entry.getVal();
1590 case ELF::DT_JMPREL:
1591 DtJmpRel = Entry.getVal();
1597 template <class ELFT> void MipsGOTParser<ELFT>::parseGOT() {
1598 // See "Global Offset Table" in Chapter 5 in the following document
1599 // for detailed GOT description.
1600 // ftp://www.linux-mips.org/pub/linux/mips/doc/ABI/mipsabi.pdf
1602 W.startLine() << "Cannot find PLTGOT dynamic table tag.\n";
1605 if (!DtLocalGotNum) {
1606 W.startLine() << "Cannot find MIPS_LOCAL_GOTNO dynamic table tag.\n";
1610 W.startLine() << "Cannot find MIPS_GOTSYM dynamic table tag.\n";
1614 const Elf_Shdr *GOTShdr = findSectionByAddress(Obj, *DtPltGot);
1616 W.startLine() << "There is no .got section in the file.\n";
1620 ErrorOr<ArrayRef<uint8_t>> GOT = Obj->getSectionContents(GOTShdr);
1622 W.startLine() << "The .got section is empty.\n";
1626 if (*DtLocalGotNum > getGOTTotal(*GOT)) {
1627 W.startLine() << "MIPS_LOCAL_GOTNO exceeds a number of GOT entries.\n";
1631 const Elf_Shdr *DynSymSec = Obj->getDotDynSymSec();
1632 ErrorOr<StringRef> StrTable = Obj->getStringTableForSymtab(*DynSymSec);
1633 error(StrTable.getError());
1634 const Elf_Sym *DynSymBegin = Obj->symbol_begin(DynSymSec);
1635 const Elf_Sym *DynSymEnd = Obj->symbol_end(DynSymSec);
1636 std::size_t DynSymTotal = std::size_t(std::distance(DynSymBegin, DynSymEnd));
1638 if (*DtGotSym > DynSymTotal) {
1639 W.startLine() << "MIPS_GOTSYM exceeds a number of dynamic symbols.\n";
1643 std::size_t GlobalGotNum = DynSymTotal - *DtGotSym;
1645 if (*DtLocalGotNum + GlobalGotNum > getGOTTotal(*GOT)) {
1646 W.startLine() << "Number of global GOT entries exceeds the size of GOT.\n";
1650 const GOTEntry *GotBegin = makeGOTIter(*GOT, 0);
1651 const GOTEntry *GotLocalEnd = makeGOTIter(*GOT, *DtLocalGotNum);
1652 const GOTEntry *It = GotBegin;
1654 DictScope GS(W, "Primary GOT");
1656 W.printHex("Canonical gp value", GOTShdr->sh_addr + 0x7ff0);
1658 ListScope RS(W, "Reserved entries");
1661 DictScope D(W, "Entry");
1662 printGotEntry(GOTShdr->sh_addr, GotBegin, It++);
1663 W.printString("Purpose", StringRef("Lazy resolver"));
1666 if (It != GotLocalEnd && (*It >> (sizeof(GOTEntry) * 8 - 1)) != 0) {
1667 DictScope D(W, "Entry");
1668 printGotEntry(GOTShdr->sh_addr, GotBegin, It++);
1669 W.printString("Purpose", StringRef("Module pointer (GNU extension)"));
1673 ListScope LS(W, "Local entries");
1674 for (; It != GotLocalEnd; ++It) {
1675 DictScope D(W, "Entry");
1676 printGotEntry(GOTShdr->sh_addr, GotBegin, It);
1680 ListScope GS(W, "Global entries");
1682 const GOTEntry *GotGlobalEnd =
1683 makeGOTIter(*GOT, *DtLocalGotNum + GlobalGotNum);
1684 const Elf_Sym *GotDynSym = DynSymBegin + *DtGotSym;
1685 for (; It != GotGlobalEnd; ++It) {
1686 DictScope D(W, "Entry");
1687 printGlobalGotEntry(GOTShdr->sh_addr, GotBegin, It, GotDynSym++,
1692 std::size_t SpecGotNum = getGOTTotal(*GOT) - *DtLocalGotNum - GlobalGotNum;
1693 W.printNumber("Number of TLS and multi-GOT entries", uint64_t(SpecGotNum));
1696 template <class ELFT> void MipsGOTParser<ELFT>::parsePLT() {
1697 if (!DtMipsPltGot) {
1698 W.startLine() << "Cannot find MIPS_PLTGOT dynamic table tag.\n";
1702 W.startLine() << "Cannot find JMPREL dynamic table tag.\n";
1706 const Elf_Shdr *PLTShdr = findSectionByAddress(Obj, *DtMipsPltGot);
1708 W.startLine() << "There is no .got.plt section in the file.\n";
1711 ErrorOr<ArrayRef<uint8_t>> PLT = Obj->getSectionContents(PLTShdr);
1713 W.startLine() << "The .got.plt section is empty.\n";
1717 const Elf_Shdr *PLTRelShdr = findSectionByAddress(Obj, *DtJmpRel);
1719 W.startLine() << "There is no .rel.plt section in the file.\n";
1722 ErrorOr<const Elf_Shdr *> SymTableOrErr =
1723 Obj->getSection(PLTRelShdr->sh_link);
1724 error(SymTableOrErr.getError());
1725 ErrorOr<StringRef> StrTable = Obj->getStringTableForSymtab(**SymTableOrErr);
1726 error(StrTable.getError());
1728 const GOTEntry *PLTBegin = makeGOTIter(*PLT, 0);
1729 const GOTEntry *PLTEnd = makeGOTIter(*PLT, getGOTTotal(*PLT));
1730 const GOTEntry *It = PLTBegin;
1732 DictScope GS(W, "PLT GOT");
1734 ListScope RS(W, "Reserved entries");
1735 printPLTEntry(PLTShdr->sh_addr, PLTBegin, It++, "PLT lazy resolver");
1737 printPLTEntry(PLTShdr->sh_addr, PLTBegin, It++, "Module pointer");
1740 ListScope GS(W, "Entries");
1742 switch (PLTRelShdr->sh_type) {
1744 for (const Elf_Rel *RI = Obj->rel_begin(PLTRelShdr),
1745 *RE = Obj->rel_end(PLTRelShdr);
1746 RI != RE && It != PLTEnd; ++RI, ++It) {
1747 const Elf_Sym *Sym =
1748 Obj->getRelocationSymbol(&*PLTRelShdr, &*RI).second;
1749 printPLTEntry(PLTShdr->sh_addr, PLTBegin, It, *StrTable, Sym);
1753 for (const Elf_Rela *RI = Obj->rela_begin(PLTRelShdr),
1754 *RE = Obj->rela_end(PLTRelShdr);
1755 RI != RE && It != PLTEnd; ++RI, ++It) {
1756 const Elf_Sym *Sym =
1757 Obj->getRelocationSymbol(&*PLTRelShdr, &*RI).second;
1758 printPLTEntry(PLTShdr->sh_addr, PLTBegin, It, *StrTable, Sym);
1765 template <class ELFT>
1766 std::size_t MipsGOTParser<ELFT>::getGOTTotal(ArrayRef<uint8_t> GOT) const {
1767 return GOT.size() / sizeof(GOTEntry);
1770 template <class ELFT>
1771 const typename MipsGOTParser<ELFT>::GOTEntry *
1772 MipsGOTParser<ELFT>::makeGOTIter(ArrayRef<uint8_t> GOT, std::size_t EntryNum) {
1773 const char *Data = reinterpret_cast<const char *>(GOT.data());
1774 return reinterpret_cast<const GOTEntry *>(Data + EntryNum * sizeof(GOTEntry));
1777 template <class ELFT>
1778 void MipsGOTParser<ELFT>::printGotEntry(uint64_t GotAddr,
1779 const GOTEntry *BeginIt,
1780 const GOTEntry *It) {
1781 int64_t Offset = std::distance(BeginIt, It) * sizeof(GOTEntry);
1782 W.printHex("Address", GotAddr + Offset);
1783 W.printNumber("Access", Offset - 0x7ff0);
1784 W.printHex("Initial", *It);
1787 template <class ELFT>
1788 void MipsGOTParser<ELFT>::printGlobalGotEntry(
1789 uint64_t GotAddr, const GOTEntry *BeginIt, const GOTEntry *It,
1790 const Elf_Sym *Sym, StringRef StrTable, bool IsDynamic) {
1791 printGotEntry(GotAddr, BeginIt, It);
1793 W.printHex("Value", Sym->st_value);
1794 W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes));
1796 unsigned SectionIndex = 0;
1797 StringRef SectionName;
1798 getSectionNameIndex(*Obj, Sym, SectionName, SectionIndex);
1799 W.printHex("Section", SectionName, SectionIndex);
1801 std::string FullSymbolName =
1802 Dumper->getFullSymbolName(Sym, StrTable, IsDynamic);
1803 W.printNumber("Name", FullSymbolName, Sym->st_name);
1806 template <class ELFT>
1807 void MipsGOTParser<ELFT>::printPLTEntry(uint64_t PLTAddr,
1808 const GOTEntry *BeginIt,
1809 const GOTEntry *It, StringRef Purpose) {
1810 DictScope D(W, "Entry");
1811 int64_t Offset = std::distance(BeginIt, It) * sizeof(GOTEntry);
1812 W.printHex("Address", PLTAddr + Offset);
1813 W.printHex("Initial", *It);
1814 W.printString("Purpose", Purpose);
1817 template <class ELFT>
1818 void MipsGOTParser<ELFT>::printPLTEntry(uint64_t PLTAddr,
1819 const GOTEntry *BeginIt,
1820 const GOTEntry *It, StringRef StrTable,
1821 const Elf_Sym *Sym) {
1822 DictScope D(W, "Entry");
1823 int64_t Offset = std::distance(BeginIt, It) * sizeof(GOTEntry);
1824 W.printHex("Address", PLTAddr + Offset);
1825 W.printHex("Initial", *It);
1826 W.printHex("Value", Sym->st_value);
1827 W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes));
1829 unsigned SectionIndex = 0;
1830 StringRef SectionName;
1831 getSectionNameIndex(*Obj, Sym, SectionName, SectionIndex);
1832 W.printHex("Section", SectionName, SectionIndex);
1834 std::string FullSymbolName = Dumper->getFullSymbolName(Sym, StrTable, true);
1835 W.printNumber("Name", FullSymbolName, Sym->st_name);
1838 template <class ELFT> void ELFDumper<ELFT>::printMipsPLTGOT() {
1839 if (Obj->getHeader()->e_machine != EM_MIPS) {
1840 W.startLine() << "MIPS PLT GOT is available for MIPS targets only.\n";
1844 MipsGOTParser<ELFT> GOTParser(this, Obj, dynamic_table(), W);
1845 GOTParser.parseGOT();
1846 GOTParser.parsePLT();
1849 static const EnumEntry<unsigned> ElfMipsISAExtType[] = {
1850 {"None", Mips::AFL_EXT_NONE},
1851 {"Broadcom SB-1", Mips::AFL_EXT_SB1},
1852 {"Cavium Networks Octeon", Mips::AFL_EXT_OCTEON},
1853 {"Cavium Networks Octeon2", Mips::AFL_EXT_OCTEON2},
1854 {"Cavium Networks OcteonP", Mips::AFL_EXT_OCTEONP},
1855 {"Cavium Networks Octeon3", Mips::AFL_EXT_OCTEON3},
1856 {"LSI R4010", Mips::AFL_EXT_4010},
1857 {"Loongson 2E", Mips::AFL_EXT_LOONGSON_2E},
1858 {"Loongson 2F", Mips::AFL_EXT_LOONGSON_2F},
1859 {"Loongson 3A", Mips::AFL_EXT_LOONGSON_3A},
1860 {"MIPS R4650", Mips::AFL_EXT_4650},
1861 {"MIPS R5900", Mips::AFL_EXT_5900},
1862 {"MIPS R10000", Mips::AFL_EXT_10000},
1863 {"NEC VR4100", Mips::AFL_EXT_4100},
1864 {"NEC VR4111/VR4181", Mips::AFL_EXT_4111},
1865 {"NEC VR4120", Mips::AFL_EXT_4120},
1866 {"NEC VR5400", Mips::AFL_EXT_5400},
1867 {"NEC VR5500", Mips::AFL_EXT_5500},
1868 {"RMI Xlr", Mips::AFL_EXT_XLR},
1869 {"Toshiba R3900", Mips::AFL_EXT_3900}
1872 static const EnumEntry<unsigned> ElfMipsASEFlags[] = {
1873 {"DSP", Mips::AFL_ASE_DSP},
1874 {"DSPR2", Mips::AFL_ASE_DSPR2},
1875 {"Enhanced VA Scheme", Mips::AFL_ASE_EVA},
1876 {"MCU", Mips::AFL_ASE_MCU},
1877 {"MDMX", Mips::AFL_ASE_MDMX},
1878 {"MIPS-3D", Mips::AFL_ASE_MIPS3D},
1879 {"MT", Mips::AFL_ASE_MT},
1880 {"SmartMIPS", Mips::AFL_ASE_SMARTMIPS},
1881 {"VZ", Mips::AFL_ASE_VIRT},
1882 {"MSA", Mips::AFL_ASE_MSA},
1883 {"MIPS16", Mips::AFL_ASE_MIPS16},
1884 {"microMIPS", Mips::AFL_ASE_MICROMIPS},
1885 {"XPA", Mips::AFL_ASE_XPA}
1888 static const EnumEntry<unsigned> ElfMipsFpABIType[] = {
1889 {"Hard or soft float", Mips::Val_GNU_MIPS_ABI_FP_ANY},
1890 {"Hard float (double precision)", Mips::Val_GNU_MIPS_ABI_FP_DOUBLE},
1891 {"Hard float (single precision)", Mips::Val_GNU_MIPS_ABI_FP_SINGLE},
1892 {"Soft float", Mips::Val_GNU_MIPS_ABI_FP_SOFT},
1893 {"Hard float (MIPS32r2 64-bit FPU 12 callee-saved)",
1894 Mips::Val_GNU_MIPS_ABI_FP_OLD_64},
1895 {"Hard float (32-bit CPU, Any FPU)", Mips::Val_GNU_MIPS_ABI_FP_XX},
1896 {"Hard float (32-bit CPU, 64-bit FPU)", Mips::Val_GNU_MIPS_ABI_FP_64},
1897 {"Hard float compat (32-bit CPU, 64-bit FPU)",
1898 Mips::Val_GNU_MIPS_ABI_FP_64A}
1901 static const EnumEntry<unsigned> ElfMipsFlags1[] {
1902 {"ODDSPREG", Mips::AFL_FLAGS1_ODDSPREG},
1905 static int getMipsRegisterSize(uint8_t Flag) {
1907 case Mips::AFL_REG_NONE:
1909 case Mips::AFL_REG_32:
1911 case Mips::AFL_REG_64:
1913 case Mips::AFL_REG_128:
1920 template <class ELFT> void ELFDumper<ELFT>::printMipsABIFlags() {
1921 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".MIPS.abiflags");
1923 W.startLine() << "There is no .MIPS.abiflags section in the file.\n";
1926 ErrorOr<ArrayRef<uint8_t>> Sec = Obj->getSectionContents(Shdr);
1928 W.startLine() << "The .MIPS.abiflags section is empty.\n";
1931 if (Sec->size() != sizeof(Elf_Mips_ABIFlags<ELFT>)) {
1932 W.startLine() << "The .MIPS.abiflags section has a wrong size.\n";
1936 auto *Flags = reinterpret_cast<const Elf_Mips_ABIFlags<ELFT> *>(Sec->data());
1938 raw_ostream &OS = W.getOStream();
1939 DictScope GS(W, "MIPS ABI Flags");
1941 W.printNumber("Version", Flags->version);
1942 W.startLine() << "ISA: ";
1943 if (Flags->isa_rev <= 1)
1944 OS << format("MIPS%u", Flags->isa_level);
1946 OS << format("MIPS%ur%u", Flags->isa_level, Flags->isa_rev);
1948 W.printEnum("ISA Extension", Flags->isa_ext, makeArrayRef(ElfMipsISAExtType));
1949 W.printFlags("ASEs", Flags->ases, makeArrayRef(ElfMipsASEFlags));
1950 W.printEnum("FP ABI", Flags->fp_abi, makeArrayRef(ElfMipsFpABIType));
1951 W.printNumber("GPR size", getMipsRegisterSize(Flags->gpr_size));
1952 W.printNumber("CPR1 size", getMipsRegisterSize(Flags->cpr1_size));
1953 W.printNumber("CPR2 size", getMipsRegisterSize(Flags->cpr2_size));
1954 W.printFlags("Flags 1", Flags->flags1, makeArrayRef(ElfMipsFlags1));
1955 W.printHex("Flags 2", Flags->flags2);
1958 template <class ELFT> void ELFDumper<ELFT>::printMipsReginfo() {
1959 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".reginfo");
1961 W.startLine() << "There is no .reginfo section in the file.\n";
1964 ErrorOr<ArrayRef<uint8_t>> Sec = Obj->getSectionContents(Shdr);
1966 W.startLine() << "The .reginfo section is empty.\n";
1969 if (Sec->size() != sizeof(Elf_Mips_RegInfo<ELFT>)) {
1970 W.startLine() << "The .reginfo section has a wrong size.\n";
1974 auto *Reginfo = reinterpret_cast<const Elf_Mips_RegInfo<ELFT> *>(Sec->data());
1976 DictScope GS(W, "MIPS RegInfo");
1977 W.printHex("GP", Reginfo->ri_gp_value);
1978 W.printHex("General Mask", Reginfo->ri_gprmask);
1979 W.printHex("Co-Proc Mask0", Reginfo->ri_cprmask[0]);
1980 W.printHex("Co-Proc Mask1", Reginfo->ri_cprmask[1]);
1981 W.printHex("Co-Proc Mask2", Reginfo->ri_cprmask[2]);
1982 W.printHex("Co-Proc Mask3", Reginfo->ri_cprmask[3]);
1985 template <class ELFT> void ELFDumper<ELFT>::printStackMap() const {
1986 const Elf_Shdr *StackMapSection = nullptr;
1987 for (const auto &Sec : Obj->sections()) {
1988 ErrorOr<StringRef> Name = Obj->getSectionName(&Sec);
1989 if (*Name == ".llvm_stackmaps") {
1990 StackMapSection = &Sec;
1995 if (!StackMapSection)
1998 StringRef StackMapContents;
1999 ErrorOr<ArrayRef<uint8_t>> StackMapContentsArray =
2000 Obj->getSectionContents(StackMapSection);
2002 prettyPrintStackMap(
2004 StackMapV1Parser<ELFT::TargetEndianness>(*StackMapContentsArray));