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 ErrorOr<const Elf_Dyn *> Ret = Obj->dynamic_table_begin(DynamicProgHeader);
109 error(Ret.getError());
112 const Elf_Dyn *dynamic_table_end() const {
113 ErrorOr<const Elf_Dyn *> Ret = Obj->dynamic_table_end(DynamicProgHeader);
114 error(Ret.getError());
117 Elf_Dyn_Range dynamic_table() const {
118 ErrorOr<Elf_Dyn_Range> Ret = Obj->dynamic_table(DynamicProgHeader);
119 error(Ret.getError());
123 StringRef getSymbolVersion(StringRef StrTab, const Elf_Sym *symb,
125 void LoadVersionMap();
126 void LoadVersionNeeds(const Elf_Shdr *ec) const;
127 void LoadVersionDefs(const Elf_Shdr *sec) const;
130 DynRegionInfo DynRelaRegion;
131 const Elf_Phdr *DynamicProgHeader = nullptr;
132 StringRef DynamicStringTable;
133 const Elf_Sym *DynSymStart = nullptr;
135 const Elf_Hash *HashTable = nullptr;
137 const Elf_Shdr *dot_gnu_version_sec = nullptr; // .gnu.version
138 const Elf_Shdr *dot_gnu_version_r_sec = nullptr; // .gnu.version_r
139 const Elf_Shdr *dot_gnu_version_d_sec = nullptr; // .gnu.version_d
141 // Records for each version index the corresponding Verdef or Vernaux entry.
142 // This is filled the first time LoadVersionMap() is called.
143 class VersionMapEntry : public PointerIntPair<const void *, 1> {
145 // If the integer is 0, this is an Elf_Verdef*.
146 // If the integer is 1, this is an Elf_Vernaux*.
147 VersionMapEntry() : PointerIntPair<const void *, 1>(nullptr, 0) {}
148 VersionMapEntry(const Elf_Verdef *verdef)
149 : PointerIntPair<const void *, 1>(verdef, 0) {}
150 VersionMapEntry(const Elf_Vernaux *vernaux)
151 : PointerIntPair<const void *, 1>(vernaux, 1) {}
152 bool isNull() const { return getPointer() == nullptr; }
153 bool isVerdef() const { return !isNull() && getInt() == 0; }
154 bool isVernaux() const { return !isNull() && getInt() == 1; }
155 const Elf_Verdef *getVerdef() const {
156 return isVerdef() ? (const Elf_Verdef *)getPointer() : nullptr;
158 const Elf_Vernaux *getVernaux() const {
159 return isVernaux() ? (const Elf_Vernaux *)getPointer() : nullptr;
162 mutable SmallVector<VersionMapEntry, 16> VersionMap;
165 std::string getFullSymbolName(const Elf_Sym *Symbol, StringRef StrTable,
169 template <class T> T errorOrDefault(ErrorOr<T> Val, T Default = T()) {
171 error(Val.getError());
181 template <class ELFT>
182 static std::error_code createELFDumper(const ELFFile<ELFT> *Obj,
183 StreamWriter &Writer,
184 std::unique_ptr<ObjDumper> &Result) {
185 Result.reset(new ELFDumper<ELFT>(Obj, Writer));
186 return readobj_error::success;
189 std::error_code createELFDumper(const object::ObjectFile *Obj,
190 StreamWriter &Writer,
191 std::unique_ptr<ObjDumper> &Result) {
192 // Little-endian 32-bit
193 if (const ELF32LEObjectFile *ELFObj = dyn_cast<ELF32LEObjectFile>(Obj))
194 return createELFDumper(ELFObj->getELFFile(), Writer, Result);
197 if (const ELF32BEObjectFile *ELFObj = dyn_cast<ELF32BEObjectFile>(Obj))
198 return createELFDumper(ELFObj->getELFFile(), Writer, Result);
200 // Little-endian 64-bit
201 if (const ELF64LEObjectFile *ELFObj = dyn_cast<ELF64LEObjectFile>(Obj))
202 return createELFDumper(ELFObj->getELFFile(), Writer, Result);
205 if (const ELF64BEObjectFile *ELFObj = dyn_cast<ELF64BEObjectFile>(Obj))
206 return createELFDumper(ELFObj->getELFFile(), Writer, Result);
208 return readobj_error::unsupported_obj_file_format;
213 // Iterate through the versions needed section, and place each Elf_Vernaux
214 // in the VersionMap according to its index.
215 template <class ELFT>
216 void ELFDumper<ELFT>::LoadVersionNeeds(const Elf_Shdr *sec) const {
217 unsigned vn_size = sec->sh_size; // Size of section in bytes
218 unsigned vn_count = sec->sh_info; // Number of Verneed entries
219 const char *sec_start = (const char *)Obj->base() + sec->sh_offset;
220 const char *sec_end = sec_start + vn_size;
221 // The first Verneed entry is at the start of the section.
222 const char *p = sec_start;
223 for (unsigned i = 0; i < vn_count; i++) {
224 if (p + sizeof(Elf_Verneed) > sec_end)
225 report_fatal_error("Section ended unexpectedly while scanning "
226 "version needed records.");
227 const Elf_Verneed *vn = reinterpret_cast<const Elf_Verneed *>(p);
228 if (vn->vn_version != ELF::VER_NEED_CURRENT)
229 report_fatal_error("Unexpected verneed version");
230 // Iterate through the Vernaux entries
231 const char *paux = p + vn->vn_aux;
232 for (unsigned j = 0; j < vn->vn_cnt; j++) {
233 if (paux + sizeof(Elf_Vernaux) > sec_end)
234 report_fatal_error("Section ended unexpected while scanning auxiliary "
235 "version needed records.");
236 const Elf_Vernaux *vna = reinterpret_cast<const Elf_Vernaux *>(paux);
237 size_t index = vna->vna_other & ELF::VERSYM_VERSION;
238 if (index >= VersionMap.size())
239 VersionMap.resize(index + 1);
240 VersionMap[index] = VersionMapEntry(vna);
241 paux += vna->vna_next;
247 // Iterate through the version definitions, and place each Elf_Verdef
248 // in the VersionMap according to its index.
249 template <class ELFT>
250 void ELFDumper<ELFT>::LoadVersionDefs(const Elf_Shdr *sec) const {
251 unsigned vd_size = sec->sh_size; // Size of section in bytes
252 unsigned vd_count = sec->sh_info; // Number of Verdef entries
253 const char *sec_start = (const char *)Obj->base() + sec->sh_offset;
254 const char *sec_end = sec_start + vd_size;
255 // The first Verdef entry is at the start of the section.
256 const char *p = sec_start;
257 for (unsigned i = 0; i < vd_count; i++) {
258 if (p + sizeof(Elf_Verdef) > sec_end)
259 report_fatal_error("Section ended unexpectedly while scanning "
260 "version definitions.");
261 const Elf_Verdef *vd = reinterpret_cast<const Elf_Verdef *>(p);
262 if (vd->vd_version != ELF::VER_DEF_CURRENT)
263 report_fatal_error("Unexpected verdef version");
264 size_t index = vd->vd_ndx & ELF::VERSYM_VERSION;
265 if (index >= VersionMap.size())
266 VersionMap.resize(index + 1);
267 VersionMap[index] = VersionMapEntry(vd);
272 template <class ELFT> void ELFDumper<ELFT>::LoadVersionMap() {
273 // If there is no dynamic symtab or version table, there is nothing to do.
274 if (!DynSymStart || !dot_gnu_version_sec)
277 // Has the VersionMap already been loaded?
278 if (VersionMap.size() > 0)
281 // The first two version indexes are reserved.
282 // Index 0 is LOCAL, index 1 is GLOBAL.
283 VersionMap.push_back(VersionMapEntry());
284 VersionMap.push_back(VersionMapEntry());
286 if (dot_gnu_version_d_sec)
287 LoadVersionDefs(dot_gnu_version_d_sec);
289 if (dot_gnu_version_r_sec)
290 LoadVersionNeeds(dot_gnu_version_r_sec);
293 template <typename ELFT>
294 StringRef ELFDumper<ELFT>::getSymbolVersion(StringRef StrTab,
297 // This is a dynamic symbol. Look in the GNU symbol version table.
298 if (!dot_gnu_version_sec) {
301 return StringRef("");
304 // Determine the position in the symbol table of this entry.
305 size_t entry_index = (reinterpret_cast<uintptr_t>(symb) -
306 reinterpret_cast<uintptr_t>(DynSymStart)) /
309 // Get the corresponding version index entry
310 const Elf_Versym *vs =
311 Obj->template getEntry<Elf_Versym>(dot_gnu_version_sec, entry_index);
312 size_t version_index = vs->vs_index & ELF::VERSYM_VERSION;
314 // Special markers for unversioned symbols.
315 if (version_index == ELF::VER_NDX_LOCAL ||
316 version_index == ELF::VER_NDX_GLOBAL) {
318 return StringRef("");
321 // Lookup this symbol in the version table
323 if (version_index >= VersionMap.size() || VersionMap[version_index].isNull())
324 reportError("Invalid version entry");
325 const VersionMapEntry &entry = VersionMap[version_index];
327 // Get the version name string
329 if (entry.isVerdef()) {
330 // The first Verdaux entry holds the name.
331 name_offset = entry.getVerdef()->getAux()->vda_name;
333 name_offset = entry.getVernaux()->vna_name;
337 if (entry.isVerdef()) {
338 IsDefault = !(vs->vs_index & ELF::VERSYM_HIDDEN);
343 if (name_offset >= StrTab.size())
344 reportError("Invalid string offset");
345 return StringRef(StrTab.data() + name_offset);
348 template <typename ELFT>
349 std::string ELFDumper<ELFT>::getFullSymbolName(const Elf_Sym *Symbol,
352 StringRef SymbolName = errorOrDefault(Symbol->getName(StrTable));
356 std::string FullSymbolName(SymbolName);
359 StringRef Version = getSymbolVersion(StrTable, &*Symbol, IsDefault);
360 FullSymbolName += (IsDefault ? "@@" : "@");
361 FullSymbolName += Version;
362 return FullSymbolName;
365 template <typename ELFO>
367 getSectionNameIndex(const ELFO &Obj, const typename ELFO::Elf_Sym *Symbol,
368 StringRef &SectionName, unsigned &SectionIndex) {
369 SectionIndex = Symbol->st_shndx;
370 if (Symbol->isUndefined())
371 SectionName = "Undefined";
372 else if (Symbol->isProcessorSpecific())
373 SectionName = "Processor Specific";
374 else if (Symbol->isOSSpecific())
375 SectionName = "Operating System Specific";
376 else if (Symbol->isAbsolute())
377 SectionName = "Absolute";
378 else if (Symbol->isCommon())
379 SectionName = "Common";
380 else if (Symbol->isReserved() && SectionIndex != SHN_XINDEX)
381 SectionName = "Reserved";
383 if (SectionIndex == SHN_XINDEX)
384 SectionIndex = Obj.getExtendedSymbolTableIndex(&*Symbol);
385 ErrorOr<const typename ELFO::Elf_Shdr *> Sec = Obj.getSection(SectionIndex);
386 error(Sec.getError());
387 SectionName = errorOrDefault(Obj.getSectionName(*Sec));
391 template <class ELFO>
392 static const typename ELFO::Elf_Shdr *findSectionByAddress(const ELFO *Obj,
394 for (const auto &Shdr : Obj->sections())
395 if (Shdr.sh_addr == Addr)
400 template <class ELFO>
401 static const typename ELFO::Elf_Shdr *findSectionByName(const ELFO &Obj,
403 for (const auto &Shdr : Obj.sections()) {
404 if (Name == errorOrDefault(Obj.getSectionName(&Shdr)))
410 static const EnumEntry<unsigned> ElfClass[] = {
411 { "None", ELF::ELFCLASSNONE },
412 { "32-bit", ELF::ELFCLASS32 },
413 { "64-bit", ELF::ELFCLASS64 },
416 static const EnumEntry<unsigned> ElfDataEncoding[] = {
417 { "None", ELF::ELFDATANONE },
418 { "LittleEndian", ELF::ELFDATA2LSB },
419 { "BigEndian", ELF::ELFDATA2MSB },
422 static const EnumEntry<unsigned> ElfObjectFileType[] = {
423 { "None", ELF::ET_NONE },
424 { "Relocatable", ELF::ET_REL },
425 { "Executable", ELF::ET_EXEC },
426 { "SharedObject", ELF::ET_DYN },
427 { "Core", ELF::ET_CORE },
430 static const EnumEntry<unsigned> ElfOSABI[] = {
431 { "SystemV", ELF::ELFOSABI_NONE },
432 { "HPUX", ELF::ELFOSABI_HPUX },
433 { "NetBSD", ELF::ELFOSABI_NETBSD },
434 { "GNU/Linux", ELF::ELFOSABI_LINUX },
435 { "GNU/Hurd", ELF::ELFOSABI_HURD },
436 { "Solaris", ELF::ELFOSABI_SOLARIS },
437 { "AIX", ELF::ELFOSABI_AIX },
438 { "IRIX", ELF::ELFOSABI_IRIX },
439 { "FreeBSD", ELF::ELFOSABI_FREEBSD },
440 { "TRU64", ELF::ELFOSABI_TRU64 },
441 { "Modesto", ELF::ELFOSABI_MODESTO },
442 { "OpenBSD", ELF::ELFOSABI_OPENBSD },
443 { "OpenVMS", ELF::ELFOSABI_OPENVMS },
444 { "NSK", ELF::ELFOSABI_NSK },
445 { "AROS", ELF::ELFOSABI_AROS },
446 { "FenixOS", ELF::ELFOSABI_FENIXOS },
447 { "CloudABI", ELF::ELFOSABI_CLOUDABI },
448 { "C6000_ELFABI", ELF::ELFOSABI_C6000_ELFABI },
449 { "C6000_LINUX" , ELF::ELFOSABI_C6000_LINUX },
450 { "ARM", ELF::ELFOSABI_ARM },
451 { "Standalone" , ELF::ELFOSABI_STANDALONE }
454 static const EnumEntry<unsigned> ElfMachineType[] = {
455 LLVM_READOBJ_ENUM_ENT(ELF, EM_NONE ),
456 LLVM_READOBJ_ENUM_ENT(ELF, EM_M32 ),
457 LLVM_READOBJ_ENUM_ENT(ELF, EM_SPARC ),
458 LLVM_READOBJ_ENUM_ENT(ELF, EM_386 ),
459 LLVM_READOBJ_ENUM_ENT(ELF, EM_68K ),
460 LLVM_READOBJ_ENUM_ENT(ELF, EM_88K ),
461 LLVM_READOBJ_ENUM_ENT(ELF, EM_IAMCU ),
462 LLVM_READOBJ_ENUM_ENT(ELF, EM_860 ),
463 LLVM_READOBJ_ENUM_ENT(ELF, EM_MIPS ),
464 LLVM_READOBJ_ENUM_ENT(ELF, EM_S370 ),
465 LLVM_READOBJ_ENUM_ENT(ELF, EM_MIPS_RS3_LE ),
466 LLVM_READOBJ_ENUM_ENT(ELF, EM_PARISC ),
467 LLVM_READOBJ_ENUM_ENT(ELF, EM_VPP500 ),
468 LLVM_READOBJ_ENUM_ENT(ELF, EM_SPARC32PLUS ),
469 LLVM_READOBJ_ENUM_ENT(ELF, EM_960 ),
470 LLVM_READOBJ_ENUM_ENT(ELF, EM_PPC ),
471 LLVM_READOBJ_ENUM_ENT(ELF, EM_PPC64 ),
472 LLVM_READOBJ_ENUM_ENT(ELF, EM_S390 ),
473 LLVM_READOBJ_ENUM_ENT(ELF, EM_SPU ),
474 LLVM_READOBJ_ENUM_ENT(ELF, EM_V800 ),
475 LLVM_READOBJ_ENUM_ENT(ELF, EM_FR20 ),
476 LLVM_READOBJ_ENUM_ENT(ELF, EM_RH32 ),
477 LLVM_READOBJ_ENUM_ENT(ELF, EM_RCE ),
478 LLVM_READOBJ_ENUM_ENT(ELF, EM_ARM ),
479 LLVM_READOBJ_ENUM_ENT(ELF, EM_ALPHA ),
480 LLVM_READOBJ_ENUM_ENT(ELF, EM_SH ),
481 LLVM_READOBJ_ENUM_ENT(ELF, EM_SPARCV9 ),
482 LLVM_READOBJ_ENUM_ENT(ELF, EM_TRICORE ),
483 LLVM_READOBJ_ENUM_ENT(ELF, EM_ARC ),
484 LLVM_READOBJ_ENUM_ENT(ELF, EM_H8_300 ),
485 LLVM_READOBJ_ENUM_ENT(ELF, EM_H8_300H ),
486 LLVM_READOBJ_ENUM_ENT(ELF, EM_H8S ),
487 LLVM_READOBJ_ENUM_ENT(ELF, EM_H8_500 ),
488 LLVM_READOBJ_ENUM_ENT(ELF, EM_IA_64 ),
489 LLVM_READOBJ_ENUM_ENT(ELF, EM_MIPS_X ),
490 LLVM_READOBJ_ENUM_ENT(ELF, EM_COLDFIRE ),
491 LLVM_READOBJ_ENUM_ENT(ELF, EM_68HC12 ),
492 LLVM_READOBJ_ENUM_ENT(ELF, EM_MMA ),
493 LLVM_READOBJ_ENUM_ENT(ELF, EM_PCP ),
494 LLVM_READOBJ_ENUM_ENT(ELF, EM_NCPU ),
495 LLVM_READOBJ_ENUM_ENT(ELF, EM_NDR1 ),
496 LLVM_READOBJ_ENUM_ENT(ELF, EM_STARCORE ),
497 LLVM_READOBJ_ENUM_ENT(ELF, EM_ME16 ),
498 LLVM_READOBJ_ENUM_ENT(ELF, EM_ST100 ),
499 LLVM_READOBJ_ENUM_ENT(ELF, EM_TINYJ ),
500 LLVM_READOBJ_ENUM_ENT(ELF, EM_X86_64 ),
501 LLVM_READOBJ_ENUM_ENT(ELF, EM_PDSP ),
502 LLVM_READOBJ_ENUM_ENT(ELF, EM_PDP10 ),
503 LLVM_READOBJ_ENUM_ENT(ELF, EM_PDP11 ),
504 LLVM_READOBJ_ENUM_ENT(ELF, EM_FX66 ),
505 LLVM_READOBJ_ENUM_ENT(ELF, EM_ST9PLUS ),
506 LLVM_READOBJ_ENUM_ENT(ELF, EM_ST7 ),
507 LLVM_READOBJ_ENUM_ENT(ELF, EM_68HC16 ),
508 LLVM_READOBJ_ENUM_ENT(ELF, EM_68HC11 ),
509 LLVM_READOBJ_ENUM_ENT(ELF, EM_68HC08 ),
510 LLVM_READOBJ_ENUM_ENT(ELF, EM_68HC05 ),
511 LLVM_READOBJ_ENUM_ENT(ELF, EM_SVX ),
512 LLVM_READOBJ_ENUM_ENT(ELF, EM_ST19 ),
513 LLVM_READOBJ_ENUM_ENT(ELF, EM_VAX ),
514 LLVM_READOBJ_ENUM_ENT(ELF, EM_CRIS ),
515 LLVM_READOBJ_ENUM_ENT(ELF, EM_JAVELIN ),
516 LLVM_READOBJ_ENUM_ENT(ELF, EM_FIREPATH ),
517 LLVM_READOBJ_ENUM_ENT(ELF, EM_ZSP ),
518 LLVM_READOBJ_ENUM_ENT(ELF, EM_MMIX ),
519 LLVM_READOBJ_ENUM_ENT(ELF, EM_HUANY ),
520 LLVM_READOBJ_ENUM_ENT(ELF, EM_PRISM ),
521 LLVM_READOBJ_ENUM_ENT(ELF, EM_AVR ),
522 LLVM_READOBJ_ENUM_ENT(ELF, EM_FR30 ),
523 LLVM_READOBJ_ENUM_ENT(ELF, EM_D10V ),
524 LLVM_READOBJ_ENUM_ENT(ELF, EM_D30V ),
525 LLVM_READOBJ_ENUM_ENT(ELF, EM_V850 ),
526 LLVM_READOBJ_ENUM_ENT(ELF, EM_M32R ),
527 LLVM_READOBJ_ENUM_ENT(ELF, EM_MN10300 ),
528 LLVM_READOBJ_ENUM_ENT(ELF, EM_MN10200 ),
529 LLVM_READOBJ_ENUM_ENT(ELF, EM_PJ ),
530 LLVM_READOBJ_ENUM_ENT(ELF, EM_OPENRISC ),
531 LLVM_READOBJ_ENUM_ENT(ELF, EM_ARC_COMPACT ),
532 LLVM_READOBJ_ENUM_ENT(ELF, EM_XTENSA ),
533 LLVM_READOBJ_ENUM_ENT(ELF, EM_VIDEOCORE ),
534 LLVM_READOBJ_ENUM_ENT(ELF, EM_TMM_GPP ),
535 LLVM_READOBJ_ENUM_ENT(ELF, EM_NS32K ),
536 LLVM_READOBJ_ENUM_ENT(ELF, EM_TPC ),
537 LLVM_READOBJ_ENUM_ENT(ELF, EM_SNP1K ),
538 LLVM_READOBJ_ENUM_ENT(ELF, EM_ST200 ),
539 LLVM_READOBJ_ENUM_ENT(ELF, EM_IP2K ),
540 LLVM_READOBJ_ENUM_ENT(ELF, EM_MAX ),
541 LLVM_READOBJ_ENUM_ENT(ELF, EM_CR ),
542 LLVM_READOBJ_ENUM_ENT(ELF, EM_F2MC16 ),
543 LLVM_READOBJ_ENUM_ENT(ELF, EM_MSP430 ),
544 LLVM_READOBJ_ENUM_ENT(ELF, EM_BLACKFIN ),
545 LLVM_READOBJ_ENUM_ENT(ELF, EM_SE_C33 ),
546 LLVM_READOBJ_ENUM_ENT(ELF, EM_SEP ),
547 LLVM_READOBJ_ENUM_ENT(ELF, EM_ARCA ),
548 LLVM_READOBJ_ENUM_ENT(ELF, EM_UNICORE ),
549 LLVM_READOBJ_ENUM_ENT(ELF, EM_EXCESS ),
550 LLVM_READOBJ_ENUM_ENT(ELF, EM_DXP ),
551 LLVM_READOBJ_ENUM_ENT(ELF, EM_ALTERA_NIOS2 ),
552 LLVM_READOBJ_ENUM_ENT(ELF, EM_CRX ),
553 LLVM_READOBJ_ENUM_ENT(ELF, EM_XGATE ),
554 LLVM_READOBJ_ENUM_ENT(ELF, EM_C166 ),
555 LLVM_READOBJ_ENUM_ENT(ELF, EM_M16C ),
556 LLVM_READOBJ_ENUM_ENT(ELF, EM_DSPIC30F ),
557 LLVM_READOBJ_ENUM_ENT(ELF, EM_CE ),
558 LLVM_READOBJ_ENUM_ENT(ELF, EM_M32C ),
559 LLVM_READOBJ_ENUM_ENT(ELF, EM_TSK3000 ),
560 LLVM_READOBJ_ENUM_ENT(ELF, EM_RS08 ),
561 LLVM_READOBJ_ENUM_ENT(ELF, EM_SHARC ),
562 LLVM_READOBJ_ENUM_ENT(ELF, EM_ECOG2 ),
563 LLVM_READOBJ_ENUM_ENT(ELF, EM_SCORE7 ),
564 LLVM_READOBJ_ENUM_ENT(ELF, EM_DSP24 ),
565 LLVM_READOBJ_ENUM_ENT(ELF, EM_VIDEOCORE3 ),
566 LLVM_READOBJ_ENUM_ENT(ELF, EM_LATTICEMICO32),
567 LLVM_READOBJ_ENUM_ENT(ELF, EM_SE_C17 ),
568 LLVM_READOBJ_ENUM_ENT(ELF, EM_TI_C6000 ),
569 LLVM_READOBJ_ENUM_ENT(ELF, EM_TI_C2000 ),
570 LLVM_READOBJ_ENUM_ENT(ELF, EM_TI_C5500 ),
571 LLVM_READOBJ_ENUM_ENT(ELF, EM_MMDSP_PLUS ),
572 LLVM_READOBJ_ENUM_ENT(ELF, EM_CYPRESS_M8C ),
573 LLVM_READOBJ_ENUM_ENT(ELF, EM_R32C ),
574 LLVM_READOBJ_ENUM_ENT(ELF, EM_TRIMEDIA ),
575 LLVM_READOBJ_ENUM_ENT(ELF, EM_HEXAGON ),
576 LLVM_READOBJ_ENUM_ENT(ELF, EM_8051 ),
577 LLVM_READOBJ_ENUM_ENT(ELF, EM_STXP7X ),
578 LLVM_READOBJ_ENUM_ENT(ELF, EM_NDS32 ),
579 LLVM_READOBJ_ENUM_ENT(ELF, EM_ECOG1 ),
580 LLVM_READOBJ_ENUM_ENT(ELF, EM_ECOG1X ),
581 LLVM_READOBJ_ENUM_ENT(ELF, EM_MAXQ30 ),
582 LLVM_READOBJ_ENUM_ENT(ELF, EM_XIMO16 ),
583 LLVM_READOBJ_ENUM_ENT(ELF, EM_MANIK ),
584 LLVM_READOBJ_ENUM_ENT(ELF, EM_CRAYNV2 ),
585 LLVM_READOBJ_ENUM_ENT(ELF, EM_RX ),
586 LLVM_READOBJ_ENUM_ENT(ELF, EM_METAG ),
587 LLVM_READOBJ_ENUM_ENT(ELF, EM_MCST_ELBRUS ),
588 LLVM_READOBJ_ENUM_ENT(ELF, EM_ECOG16 ),
589 LLVM_READOBJ_ENUM_ENT(ELF, EM_CR16 ),
590 LLVM_READOBJ_ENUM_ENT(ELF, EM_ETPU ),
591 LLVM_READOBJ_ENUM_ENT(ELF, EM_SLE9X ),
592 LLVM_READOBJ_ENUM_ENT(ELF, EM_L10M ),
593 LLVM_READOBJ_ENUM_ENT(ELF, EM_K10M ),
594 LLVM_READOBJ_ENUM_ENT(ELF, EM_AARCH64 ),
595 LLVM_READOBJ_ENUM_ENT(ELF, EM_AVR32 ),
596 LLVM_READOBJ_ENUM_ENT(ELF, EM_STM8 ),
597 LLVM_READOBJ_ENUM_ENT(ELF, EM_TILE64 ),
598 LLVM_READOBJ_ENUM_ENT(ELF, EM_TILEPRO ),
599 LLVM_READOBJ_ENUM_ENT(ELF, EM_CUDA ),
600 LLVM_READOBJ_ENUM_ENT(ELF, EM_TILEGX ),
601 LLVM_READOBJ_ENUM_ENT(ELF, EM_CLOUDSHIELD ),
602 LLVM_READOBJ_ENUM_ENT(ELF, EM_COREA_1ST ),
603 LLVM_READOBJ_ENUM_ENT(ELF, EM_COREA_2ND ),
604 LLVM_READOBJ_ENUM_ENT(ELF, EM_ARC_COMPACT2 ),
605 LLVM_READOBJ_ENUM_ENT(ELF, EM_OPEN8 ),
606 LLVM_READOBJ_ENUM_ENT(ELF, EM_RL78 ),
607 LLVM_READOBJ_ENUM_ENT(ELF, EM_VIDEOCORE5 ),
608 LLVM_READOBJ_ENUM_ENT(ELF, EM_78KOR ),
609 LLVM_READOBJ_ENUM_ENT(ELF, EM_56800EX ),
610 LLVM_READOBJ_ENUM_ENT(ELF, EM_AMDGPU )
613 static const EnumEntry<unsigned> ElfSymbolBindings[] = {
614 { "Local", ELF::STB_LOCAL },
615 { "Global", ELF::STB_GLOBAL },
616 { "Weak", ELF::STB_WEAK },
617 { "Unique", ELF::STB_GNU_UNIQUE }
620 static const EnumEntry<unsigned> ElfSymbolTypes[] = {
621 { "None", ELF::STT_NOTYPE },
622 { "Object", ELF::STT_OBJECT },
623 { "Function", ELF::STT_FUNC },
624 { "Section", ELF::STT_SECTION },
625 { "File", ELF::STT_FILE },
626 { "Common", ELF::STT_COMMON },
627 { "TLS", ELF::STT_TLS },
628 { "GNU_IFunc", ELF::STT_GNU_IFUNC }
631 static const EnumEntry<unsigned> AMDGPUSymbolTypes[] = {
632 { "AMDGPU_HSA_KERNEL", ELF::STT_AMDGPU_HSA_KERNEL },
633 { "AMDGPU_HSA_INDIRECT_FUNCTION", ELF::STT_AMDGPU_HSA_INDIRECT_FUNCTION },
634 { "AMDGPU_HSA_METADATA", ELF::STT_AMDGPU_HSA_METADATA }
637 static const char *getElfSectionType(unsigned Arch, unsigned Type) {
641 LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_EXIDX);
642 LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_PREEMPTMAP);
643 LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_ATTRIBUTES);
644 LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_DEBUGOVERLAY);
645 LLVM_READOBJ_ENUM_CASE(ELF, SHT_ARM_OVERLAYSECTION);
647 case ELF::EM_HEXAGON:
648 switch (Type) { LLVM_READOBJ_ENUM_CASE(ELF, SHT_HEX_ORDERED); }
650 switch (Type) { LLVM_READOBJ_ENUM_CASE(ELF, SHT_X86_64_UNWIND); }
652 case ELF::EM_MIPS_RS3_LE:
654 LLVM_READOBJ_ENUM_CASE(ELF, SHT_MIPS_REGINFO);
655 LLVM_READOBJ_ENUM_CASE(ELF, SHT_MIPS_OPTIONS);
656 LLVM_READOBJ_ENUM_CASE(ELF, SHT_MIPS_ABIFLAGS);
661 LLVM_READOBJ_ENUM_CASE(ELF, SHT_NULL );
662 LLVM_READOBJ_ENUM_CASE(ELF, SHT_PROGBITS );
663 LLVM_READOBJ_ENUM_CASE(ELF, SHT_SYMTAB );
664 LLVM_READOBJ_ENUM_CASE(ELF, SHT_STRTAB );
665 LLVM_READOBJ_ENUM_CASE(ELF, SHT_RELA );
666 LLVM_READOBJ_ENUM_CASE(ELF, SHT_HASH );
667 LLVM_READOBJ_ENUM_CASE(ELF, SHT_DYNAMIC );
668 LLVM_READOBJ_ENUM_CASE(ELF, SHT_NOTE );
669 LLVM_READOBJ_ENUM_CASE(ELF, SHT_NOBITS );
670 LLVM_READOBJ_ENUM_CASE(ELF, SHT_REL );
671 LLVM_READOBJ_ENUM_CASE(ELF, SHT_SHLIB );
672 LLVM_READOBJ_ENUM_CASE(ELF, SHT_DYNSYM );
673 LLVM_READOBJ_ENUM_CASE(ELF, SHT_INIT_ARRAY );
674 LLVM_READOBJ_ENUM_CASE(ELF, SHT_FINI_ARRAY );
675 LLVM_READOBJ_ENUM_CASE(ELF, SHT_PREINIT_ARRAY );
676 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GROUP );
677 LLVM_READOBJ_ENUM_CASE(ELF, SHT_SYMTAB_SHNDX );
678 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_ATTRIBUTES );
679 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_HASH );
680 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_verdef );
681 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_verneed );
682 LLVM_READOBJ_ENUM_CASE(ELF, SHT_GNU_versym );
687 static const EnumEntry<unsigned> ElfSectionFlags[] = {
688 LLVM_READOBJ_ENUM_ENT(ELF, SHF_WRITE ),
689 LLVM_READOBJ_ENUM_ENT(ELF, SHF_ALLOC ),
690 LLVM_READOBJ_ENUM_ENT(ELF, SHF_EXCLUDE ),
691 LLVM_READOBJ_ENUM_ENT(ELF, SHF_EXECINSTR ),
692 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MERGE ),
693 LLVM_READOBJ_ENUM_ENT(ELF, SHF_STRINGS ),
694 LLVM_READOBJ_ENUM_ENT(ELF, SHF_INFO_LINK ),
695 LLVM_READOBJ_ENUM_ENT(ELF, SHF_LINK_ORDER ),
696 LLVM_READOBJ_ENUM_ENT(ELF, SHF_OS_NONCONFORMING),
697 LLVM_READOBJ_ENUM_ENT(ELF, SHF_GROUP ),
698 LLVM_READOBJ_ENUM_ENT(ELF, SHF_TLS ),
699 LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_CP_SECTION),
700 LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_DP_SECTION),
701 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NOSTRIP ),
702 LLVM_READOBJ_ENUM_ENT(ELF, SHF_AMDGPU_HSA_GLOBAL),
703 LLVM_READOBJ_ENUM_ENT(ELF, SHF_AMDGPU_HSA_READONLY),
704 LLVM_READOBJ_ENUM_ENT(ELF, SHF_AMDGPU_HSA_CODE),
705 LLVM_READOBJ_ENUM_ENT(ELF, SHF_AMDGPU_HSA_AGENT)
708 static const char *getElfSegmentType(unsigned Arch, unsigned Type) {
709 // Check potentially overlapped processor-specific
710 // program header type.
714 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_GLOBAL_PROGRAM);
715 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_GLOBAL_AGENT);
716 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_READONLY_AGENT);
717 LLVM_READOBJ_ENUM_CASE(ELF, PT_AMDGPU_HSA_LOAD_CODE_AGENT);
721 LLVM_READOBJ_ENUM_CASE(ELF, PT_ARM_EXIDX);
724 case ELF::EM_MIPS_RS3_LE:
726 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_REGINFO);
727 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_RTPROC);
728 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_OPTIONS);
729 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_ABIFLAGS);
734 LLVM_READOBJ_ENUM_CASE(ELF, PT_NULL );
735 LLVM_READOBJ_ENUM_CASE(ELF, PT_LOAD );
736 LLVM_READOBJ_ENUM_CASE(ELF, PT_DYNAMIC);
737 LLVM_READOBJ_ENUM_CASE(ELF, PT_INTERP );
738 LLVM_READOBJ_ENUM_CASE(ELF, PT_NOTE );
739 LLVM_READOBJ_ENUM_CASE(ELF, PT_SHLIB );
740 LLVM_READOBJ_ENUM_CASE(ELF, PT_PHDR );
741 LLVM_READOBJ_ENUM_CASE(ELF, PT_TLS );
743 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_EH_FRAME);
744 LLVM_READOBJ_ENUM_CASE(ELF, PT_SUNW_UNWIND);
746 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_STACK);
747 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_RELRO);
752 static const EnumEntry<unsigned> ElfSegmentFlags[] = {
753 LLVM_READOBJ_ENUM_ENT(ELF, PF_X),
754 LLVM_READOBJ_ENUM_ENT(ELF, PF_W),
755 LLVM_READOBJ_ENUM_ENT(ELF, PF_R)
758 static const EnumEntry<unsigned> ElfHeaderMipsFlags[] = {
759 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_NOREORDER),
760 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_PIC),
761 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_CPIC),
762 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI2),
763 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_32BITMODE),
764 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_FP64),
765 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_NAN2008),
766 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_O32),
767 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_O64),
768 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_EABI32),
769 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ABI_EABI64),
770 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_3900),
771 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4010),
772 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4100),
773 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4650),
774 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4120),
775 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_4111),
776 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_SB1),
777 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON),
778 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_XLR),
779 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON2),
780 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_OCTEON3),
781 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5400),
782 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5900),
783 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_5500),
784 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_9000),
785 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS2E),
786 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS2F),
787 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MACH_LS3A),
788 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_MICROMIPS),
789 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_ASE_M16),
790 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_ASE_MDMX),
791 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_1),
792 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_2),
793 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_3),
794 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_4),
795 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_5),
796 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32),
797 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64),
798 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32R2),
799 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64R2),
800 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_32R6),
801 LLVM_READOBJ_ENUM_ENT(ELF, EF_MIPS_ARCH_64R6)
804 template <typename ELFT>
805 ELFDumper<ELFT>::ELFDumper(const ELFFile<ELFT> *Obj, StreamWriter &Writer)
806 : ObjDumper(Writer), Obj(Obj) {
808 SmallVector<const Elf_Phdr *, 4> LoadSegments;
809 for (const Elf_Phdr &Phdr : Obj->program_headers()) {
810 if (Phdr.p_type == ELF::PT_DYNAMIC) {
811 DynamicProgHeader = &Phdr;
814 if (Phdr.p_type != ELF::PT_LOAD || Phdr.p_filesz == 0)
816 LoadSegments.push_back(&Phdr);
819 auto toMappedAddr = [&](uint64_t VAddr) -> const uint8_t * {
820 const Elf_Phdr **I = std::upper_bound(
821 LoadSegments.begin(), LoadSegments.end(), VAddr, compareAddr<ELFT>);
822 if (I == LoadSegments.begin())
823 report_fatal_error("Virtual address is not in any segment");
825 const Elf_Phdr &Phdr = **I;
826 uint64_t Delta = VAddr - Phdr.p_vaddr;
827 if (Delta >= Phdr.p_filesz)
828 report_fatal_error("Virtual address is not in any segment");
829 return Obj->base() + Phdr.p_offset + Delta;
832 uint64_t SONameOffset = 0;
833 const char *StringTableBegin = nullptr;
834 uint64_t StringTableSize = 0;
835 for (const Elf_Dyn &Dyn : dynamic_table()) {
839 reinterpret_cast<const Elf_Hash *>(toMappedAddr(Dyn.getPtr()));
842 DynRelaRegion.Addr = toMappedAddr(Dyn.getPtr());
845 DynRelaRegion.Size = Dyn.getVal();
847 case ELF::DT_RELAENT:
848 DynRelaRegion.EntSize = Dyn.getVal();
851 SONameOffset = Dyn.getVal();
854 StringTableBegin = (const char *)toMappedAddr(Dyn.getPtr());
857 StringTableSize = Dyn.getVal();
861 reinterpret_cast<const Elf_Sym *>(toMappedAddr(Dyn.getPtr()));
865 if (StringTableBegin)
866 DynamicStringTable = StringRef(StringTableBegin, StringTableSize);
868 SOName = getDynamicString(SONameOffset);
870 for (const Elf_Shdr &Sec : Obj->sections()) {
871 switch (Sec.sh_type) {
872 case ELF::SHT_GNU_versym:
873 if (dot_gnu_version_sec != nullptr)
874 reportError("Multiple SHT_GNU_versym");
875 dot_gnu_version_sec = &Sec;
877 case ELF::SHT_GNU_verdef:
878 if (dot_gnu_version_d_sec != nullptr)
879 reportError("Multiple SHT_GNU_verdef");
880 dot_gnu_version_d_sec = &Sec;
882 case ELF::SHT_GNU_verneed:
883 if (dot_gnu_version_r_sec != nullptr)
884 reportError("Multilpe SHT_GNU_verneed");
885 dot_gnu_version_r_sec = &Sec;
891 template <typename ELFT>
892 const typename ELFDumper<ELFT>::Elf_Rela *
893 ELFDumper<ELFT>::dyn_rela_begin() const {
894 if (DynRelaRegion.Size && DynRelaRegion.EntSize != sizeof(Elf_Rela))
895 report_fatal_error("Invalid relocation entry size");
896 return reinterpret_cast<const Elf_Rela *>(DynRelaRegion.Addr);
899 template <typename ELFT>
900 const typename ELFDumper<ELFT>::Elf_Rela *
901 ELFDumper<ELFT>::dyn_rela_end() const {
902 uint64_t Size = DynRelaRegion.Size;
903 if (Size % sizeof(Elf_Rela))
904 report_fatal_error("Invalid relocation table size");
905 return dyn_rela_begin() + Size / sizeof(Elf_Rela);
908 template <typename ELFT>
909 typename ELFDumper<ELFT>::Elf_Rela_Range ELFDumper<ELFT>::dyn_relas() const {
910 return make_range(dyn_rela_begin(), dyn_rela_end());
914 void ELFDumper<ELFT>::printFileHeaders() {
915 const Elf_Ehdr *Header = Obj->getHeader();
918 DictScope D(W, "ElfHeader");
920 DictScope D(W, "Ident");
921 W.printBinary("Magic", makeArrayRef(Header->e_ident).slice(ELF::EI_MAG0,
923 W.printEnum ("Class", Header->e_ident[ELF::EI_CLASS],
924 makeArrayRef(ElfClass));
925 W.printEnum ("DataEncoding", Header->e_ident[ELF::EI_DATA],
926 makeArrayRef(ElfDataEncoding));
927 W.printNumber("FileVersion", Header->e_ident[ELF::EI_VERSION]);
929 // Handle architecture specific OS/ABI values.
930 if (Header->e_machine == ELF::EM_AMDGPU &&
931 Header->e_ident[ELF::EI_OSABI] == ELF::ELFOSABI_AMDGPU_HSA)
932 W.printHex("OS/ABI", "AMDGPU_HSA", ELF::ELFOSABI_AMDGPU_HSA);
934 W.printEnum ("OS/ABI", Header->e_ident[ELF::EI_OSABI],
935 makeArrayRef(ElfOSABI));
936 W.printNumber("ABIVersion", Header->e_ident[ELF::EI_ABIVERSION]);
937 W.printBinary("Unused", makeArrayRef(Header->e_ident).slice(ELF::EI_PAD));
940 W.printEnum ("Type", Header->e_type, makeArrayRef(ElfObjectFileType));
941 W.printEnum ("Machine", Header->e_machine, makeArrayRef(ElfMachineType));
942 W.printNumber("Version", Header->e_version);
943 W.printHex ("Entry", Header->e_entry);
944 W.printHex ("ProgramHeaderOffset", Header->e_phoff);
945 W.printHex ("SectionHeaderOffset", Header->e_shoff);
946 if (Header->e_machine == EM_MIPS)
947 W.printFlags("Flags", Header->e_flags, makeArrayRef(ElfHeaderMipsFlags),
948 unsigned(ELF::EF_MIPS_ARCH), unsigned(ELF::EF_MIPS_ABI),
949 unsigned(ELF::EF_MIPS_MACH));
951 W.printFlags("Flags", Header->e_flags);
952 W.printNumber("HeaderSize", Header->e_ehsize);
953 W.printNumber("ProgramHeaderEntrySize", Header->e_phentsize);
954 W.printNumber("ProgramHeaderCount", Header->e_phnum);
955 W.printNumber("SectionHeaderEntrySize", Header->e_shentsize);
956 W.printNumber("SectionHeaderCount", Header->e_shnum);
957 W.printNumber("StringTableSectionIndex", Header->e_shstrndx);
962 void ELFDumper<ELFT>::printSections() {
963 ListScope SectionsD(W, "Sections");
965 int SectionIndex = -1;
966 for (const Elf_Shdr &Sec : Obj->sections()) {
969 StringRef Name = errorOrDefault(Obj->getSectionName(&Sec));
971 DictScope SectionD(W, "Section");
972 W.printNumber("Index", SectionIndex);
973 W.printNumber("Name", Name, Sec.sh_name);
975 getElfSectionType(Obj->getHeader()->e_machine, Sec.sh_type),
977 W.printFlags("Flags", Sec.sh_flags, makeArrayRef(ElfSectionFlags));
978 W.printHex("Address", Sec.sh_addr);
979 W.printHex("Offset", Sec.sh_offset);
980 W.printNumber("Size", Sec.sh_size);
981 W.printNumber("Link", Sec.sh_link);
982 W.printNumber("Info", Sec.sh_info);
983 W.printNumber("AddressAlignment", Sec.sh_addralign);
984 W.printNumber("EntrySize", Sec.sh_entsize);
986 if (opts::SectionRelocations) {
987 ListScope D(W, "Relocations");
988 printRelocations(&Sec);
991 if (opts::SectionSymbols) {
992 ListScope D(W, "Symbols");
993 const Elf_Shdr *Symtab = Obj->getDotSymtabSec();
994 ErrorOr<StringRef> StrTableOrErr = Obj->getStringTableForSymtab(*Symtab);
995 error(StrTableOrErr.getError());
996 StringRef StrTable = *StrTableOrErr;
998 for (const Elf_Sym &Sym : Obj->symbols()) {
999 ErrorOr<const Elf_Shdr *> SymSec = Obj->getSection(&Sym);
1002 if (*SymSec == &Sec)
1003 printSymbol(&Sym, StrTable, false);
1007 if (opts::SectionData && Sec.sh_type != ELF::SHT_NOBITS) {
1008 ArrayRef<uint8_t> Data = errorOrDefault(Obj->getSectionContents(&Sec));
1009 W.printBinaryBlock("SectionData",
1010 StringRef((const char *)Data.data(), Data.size()));
1015 template<class ELFT>
1016 void ELFDumper<ELFT>::printRelocations() {
1017 ListScope D(W, "Relocations");
1019 int SectionNumber = -1;
1020 for (const Elf_Shdr &Sec : Obj->sections()) {
1023 if (Sec.sh_type != ELF::SHT_REL && Sec.sh_type != ELF::SHT_RELA)
1026 StringRef Name = errorOrDefault(Obj->getSectionName(&Sec));
1028 W.startLine() << "Section (" << SectionNumber << ") " << Name << " {\n";
1031 printRelocations(&Sec);
1034 W.startLine() << "}\n";
1038 template<class ELFT>
1039 void ELFDumper<ELFT>::printDynamicRelocations() {
1040 W.startLine() << "Dynamic Relocations {\n";
1042 for (const Elf_Rela &Rel : dyn_relas()) {
1043 SmallString<32> RelocName;
1044 Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName);
1045 StringRef SymbolName;
1046 uint32_t SymIndex = Rel.getSymbol(Obj->isMips64EL());
1047 const Elf_Sym *Sym = DynSymStart + SymIndex;
1048 SymbolName = errorOrDefault(Sym->getName(DynamicStringTable));
1049 if (opts::ExpandRelocs) {
1050 DictScope Group(W, "Relocation");
1051 W.printHex("Offset", Rel.r_offset);
1052 W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL()));
1053 W.printString("Symbol", SymbolName.size() > 0 ? SymbolName : "-");
1054 W.printHex("Addend", Rel.r_addend);
1057 raw_ostream& OS = W.startLine();
1058 OS << W.hex(Rel.r_offset) << " " << RelocName << " "
1059 << (SymbolName.size() > 0 ? SymbolName : "-") << " "
1060 << W.hex(Rel.r_addend) << "\n";
1064 W.startLine() << "}\n";
1067 template <class ELFT>
1068 void ELFDumper<ELFT>::printRelocations(const Elf_Shdr *Sec) {
1069 switch (Sec->sh_type) {
1071 for (const Elf_Rel &R : Obj->rels(Sec)) {
1073 Rela.r_offset = R.r_offset;
1074 Rela.r_info = R.r_info;
1076 printRelocation(Sec, Rela);
1080 for (const Elf_Rela &R : Obj->relas(Sec))
1081 printRelocation(Sec, R);
1086 template <class ELFT>
1087 void ELFDumper<ELFT>::printRelocation(const Elf_Shdr *Sec, Elf_Rela Rel) {
1088 SmallString<32> RelocName;
1089 Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName);
1090 StringRef TargetName;
1091 std::pair<const Elf_Shdr *, const Elf_Sym *> Sym =
1092 Obj->getRelocationSymbol(Sec, &Rel);
1093 if (Sym.second && Sym.second->getType() == ELF::STT_SECTION) {
1094 ErrorOr<const Elf_Shdr *> Sec = Obj->getSection(Sym.second);
1095 error(Sec.getError());
1096 ErrorOr<StringRef> SecName = Obj->getSectionName(*Sec);
1098 TargetName = SecName.get();
1099 } else if (Sym.first) {
1100 const Elf_Shdr *SymTable = Sym.first;
1101 ErrorOr<StringRef> StrTableOrErr = Obj->getStringTableForSymtab(*SymTable);
1102 error(StrTableOrErr.getError());
1103 TargetName = errorOrDefault(Sym.second->getName(*StrTableOrErr));
1106 if (opts::ExpandRelocs) {
1107 DictScope Group(W, "Relocation");
1108 W.printHex("Offset", Rel.r_offset);
1109 W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL()));
1110 W.printNumber("Symbol", TargetName.size() > 0 ? TargetName : "-",
1111 Rel.getSymbol(Obj->isMips64EL()));
1112 W.printHex("Addend", Rel.r_addend);
1114 raw_ostream& OS = W.startLine();
1115 OS << W.hex(Rel.r_offset) << " " << RelocName << " "
1116 << (TargetName.size() > 0 ? TargetName : "-") << " "
1117 << W.hex(Rel.r_addend) << "\n";
1121 template<class ELFT>
1122 void ELFDumper<ELFT>::printSymbols() {
1123 ListScope Group(W, "Symbols");
1125 const Elf_Shdr *Symtab = Obj->getDotSymtabSec();
1126 ErrorOr<StringRef> StrTableOrErr = Obj->getStringTableForSymtab(*Symtab);
1127 error(StrTableOrErr.getError());
1128 StringRef StrTable = *StrTableOrErr;
1129 for (const Elf_Sym &Sym : Obj->symbols())
1130 printSymbol(&Sym, StrTable, false);
1133 template<class ELFT>
1134 void ELFDumper<ELFT>::printDynamicSymbols() {
1135 ListScope Group(W, "DynamicSymbols");
1137 const Elf_Shdr *Symtab = Obj->getDotDynSymSec();
1138 ErrorOr<StringRef> StrTableOrErr = Obj->getStringTableForSymtab(*Symtab);
1139 error(StrTableOrErr.getError());
1140 StringRef StrTable = *StrTableOrErr;
1141 for (const Elf_Sym &Sym : Obj->symbols(Symtab))
1142 printSymbol(&Sym, StrTable, true);
1145 template <class ELFT>
1146 void ELFDumper<ELFT>::printSymbol(const Elf_Sym *Symbol, StringRef StrTable,
1148 unsigned SectionIndex = 0;
1149 StringRef SectionName;
1150 getSectionNameIndex(*Obj, Symbol, SectionName, SectionIndex);
1151 std::string FullSymbolName = getFullSymbolName(Symbol, StrTable, IsDynamic);
1152 unsigned char SymbolType = Symbol->getType();
1154 DictScope D(W, "Symbol");
1155 W.printNumber("Name", FullSymbolName, Symbol->st_name);
1156 W.printHex ("Value", Symbol->st_value);
1157 W.printNumber("Size", Symbol->st_size);
1158 W.printEnum ("Binding", Symbol->getBinding(),
1159 makeArrayRef(ElfSymbolBindings));
1160 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU &&
1161 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS)
1162 W.printEnum ("Type", SymbolType, makeArrayRef(AMDGPUSymbolTypes));
1164 W.printEnum ("Type", SymbolType, makeArrayRef(ElfSymbolTypes));
1165 W.printNumber("Other", Symbol->st_other);
1166 W.printHex("Section", SectionName, SectionIndex);
1169 #define LLVM_READOBJ_TYPE_CASE(name) \
1170 case DT_##name: return #name
1172 static const char *getTypeString(uint64_t Type) {
1174 LLVM_READOBJ_TYPE_CASE(BIND_NOW);
1175 LLVM_READOBJ_TYPE_CASE(DEBUG);
1176 LLVM_READOBJ_TYPE_CASE(FINI);
1177 LLVM_READOBJ_TYPE_CASE(FINI_ARRAY);
1178 LLVM_READOBJ_TYPE_CASE(FINI_ARRAYSZ);
1179 LLVM_READOBJ_TYPE_CASE(FLAGS);
1180 LLVM_READOBJ_TYPE_CASE(FLAGS_1);
1181 LLVM_READOBJ_TYPE_CASE(HASH);
1182 LLVM_READOBJ_TYPE_CASE(INIT);
1183 LLVM_READOBJ_TYPE_CASE(INIT_ARRAY);
1184 LLVM_READOBJ_TYPE_CASE(INIT_ARRAYSZ);
1185 LLVM_READOBJ_TYPE_CASE(PREINIT_ARRAY);
1186 LLVM_READOBJ_TYPE_CASE(PREINIT_ARRAYSZ);
1187 LLVM_READOBJ_TYPE_CASE(JMPREL);
1188 LLVM_READOBJ_TYPE_CASE(NEEDED);
1189 LLVM_READOBJ_TYPE_CASE(NULL);
1190 LLVM_READOBJ_TYPE_CASE(PLTGOT);
1191 LLVM_READOBJ_TYPE_CASE(PLTREL);
1192 LLVM_READOBJ_TYPE_CASE(PLTRELSZ);
1193 LLVM_READOBJ_TYPE_CASE(REL);
1194 LLVM_READOBJ_TYPE_CASE(RELA);
1195 LLVM_READOBJ_TYPE_CASE(RELENT);
1196 LLVM_READOBJ_TYPE_CASE(RELSZ);
1197 LLVM_READOBJ_TYPE_CASE(RELAENT);
1198 LLVM_READOBJ_TYPE_CASE(RELASZ);
1199 LLVM_READOBJ_TYPE_CASE(RPATH);
1200 LLVM_READOBJ_TYPE_CASE(RUNPATH);
1201 LLVM_READOBJ_TYPE_CASE(SONAME);
1202 LLVM_READOBJ_TYPE_CASE(STRSZ);
1203 LLVM_READOBJ_TYPE_CASE(STRTAB);
1204 LLVM_READOBJ_TYPE_CASE(SYMBOLIC);
1205 LLVM_READOBJ_TYPE_CASE(SYMENT);
1206 LLVM_READOBJ_TYPE_CASE(SYMTAB);
1207 LLVM_READOBJ_TYPE_CASE(TEXTREL);
1208 LLVM_READOBJ_TYPE_CASE(VERNEED);
1209 LLVM_READOBJ_TYPE_CASE(VERNEEDNUM);
1210 LLVM_READOBJ_TYPE_CASE(VERSYM);
1211 LLVM_READOBJ_TYPE_CASE(RELCOUNT);
1212 LLVM_READOBJ_TYPE_CASE(GNU_HASH);
1213 LLVM_READOBJ_TYPE_CASE(MIPS_RLD_VERSION);
1214 LLVM_READOBJ_TYPE_CASE(MIPS_RLD_MAP_REL);
1215 LLVM_READOBJ_TYPE_CASE(MIPS_FLAGS);
1216 LLVM_READOBJ_TYPE_CASE(MIPS_BASE_ADDRESS);
1217 LLVM_READOBJ_TYPE_CASE(MIPS_LOCAL_GOTNO);
1218 LLVM_READOBJ_TYPE_CASE(MIPS_SYMTABNO);
1219 LLVM_READOBJ_TYPE_CASE(MIPS_UNREFEXTNO);
1220 LLVM_READOBJ_TYPE_CASE(MIPS_GOTSYM);
1221 LLVM_READOBJ_TYPE_CASE(MIPS_RLD_MAP);
1222 LLVM_READOBJ_TYPE_CASE(MIPS_PLTGOT);
1223 LLVM_READOBJ_TYPE_CASE(MIPS_OPTIONS);
1224 default: return "unknown";
1228 #undef LLVM_READOBJ_TYPE_CASE
1230 #define LLVM_READOBJ_DT_FLAG_ENT(prefix, enum) \
1231 { #enum, prefix##_##enum }
1233 static const EnumEntry<unsigned> ElfDynamicDTFlags[] = {
1234 LLVM_READOBJ_DT_FLAG_ENT(DF, ORIGIN),
1235 LLVM_READOBJ_DT_FLAG_ENT(DF, SYMBOLIC),
1236 LLVM_READOBJ_DT_FLAG_ENT(DF, TEXTREL),
1237 LLVM_READOBJ_DT_FLAG_ENT(DF, BIND_NOW),
1238 LLVM_READOBJ_DT_FLAG_ENT(DF, STATIC_TLS)
1241 static const EnumEntry<unsigned> ElfDynamicDTFlags1[] = {
1242 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOW),
1243 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAL),
1244 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GROUP),
1245 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODELETE),
1246 LLVM_READOBJ_DT_FLAG_ENT(DF_1, LOADFLTR),
1247 LLVM_READOBJ_DT_FLAG_ENT(DF_1, INITFIRST),
1248 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOOPEN),
1249 LLVM_READOBJ_DT_FLAG_ENT(DF_1, ORIGIN),
1250 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DIRECT),
1251 LLVM_READOBJ_DT_FLAG_ENT(DF_1, TRANS),
1252 LLVM_READOBJ_DT_FLAG_ENT(DF_1, INTERPOSE),
1253 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODEFLIB),
1254 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODUMP),
1255 LLVM_READOBJ_DT_FLAG_ENT(DF_1, CONFALT),
1256 LLVM_READOBJ_DT_FLAG_ENT(DF_1, ENDFILTEE),
1257 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DISPRELDNE),
1258 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODIRECT),
1259 LLVM_READOBJ_DT_FLAG_ENT(DF_1, IGNMULDEF),
1260 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOKSYMS),
1261 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOHDR),
1262 LLVM_READOBJ_DT_FLAG_ENT(DF_1, EDITED),
1263 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NORELOC),
1264 LLVM_READOBJ_DT_FLAG_ENT(DF_1, SYMINTPOSE),
1265 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAUDIT),
1266 LLVM_READOBJ_DT_FLAG_ENT(DF_1, SINGLETON)
1269 static const EnumEntry<unsigned> ElfDynamicDTMipsFlags[] = {
1270 LLVM_READOBJ_DT_FLAG_ENT(RHF, NONE),
1271 LLVM_READOBJ_DT_FLAG_ENT(RHF, QUICKSTART),
1272 LLVM_READOBJ_DT_FLAG_ENT(RHF, NOTPOT),
1273 LLVM_READOBJ_DT_FLAG_ENT(RHS, NO_LIBRARY_REPLACEMENT),
1274 LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_MOVE),
1275 LLVM_READOBJ_DT_FLAG_ENT(RHF, SGI_ONLY),
1276 LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_INIT),
1277 LLVM_READOBJ_DT_FLAG_ENT(RHF, DELTA_C_PLUS_PLUS),
1278 LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_START_INIT),
1279 LLVM_READOBJ_DT_FLAG_ENT(RHF, PIXIE),
1280 LLVM_READOBJ_DT_FLAG_ENT(RHF, DEFAULT_DELAY_LOAD),
1281 LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTART),
1282 LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTARTED),
1283 LLVM_READOBJ_DT_FLAG_ENT(RHF, CORD),
1284 LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_UNRES_UNDEF),
1285 LLVM_READOBJ_DT_FLAG_ENT(RHF, RLD_ORDER_SAFE)
1288 #undef LLVM_READOBJ_DT_FLAG_ENT
1290 template <typename T, typename TFlag>
1291 void printFlags(T Value, ArrayRef<EnumEntry<TFlag>> Flags, raw_ostream &OS) {
1292 typedef EnumEntry<TFlag> FlagEntry;
1293 typedef SmallVector<FlagEntry, 10> FlagVector;
1294 FlagVector SetFlags;
1296 for (const auto &Flag : Flags) {
1297 if (Flag.Value == 0)
1300 if ((Value & Flag.Value) == Flag.Value)
1301 SetFlags.push_back(Flag);
1304 for (const auto &Flag : SetFlags) {
1305 OS << Flag.Name << " ";
1309 template <class ELFT>
1310 StringRef ELFDumper<ELFT>::getDynamicString(uint64_t Value) const {
1311 if (Value >= DynamicStringTable.size())
1312 reportError("Invalid dynamic string table reference");
1313 return StringRef(DynamicStringTable.data() + Value);
1316 template <class ELFT>
1317 void ELFDumper<ELFT>::printValue(uint64_t Type, uint64_t Value) {
1318 raw_ostream &OS = W.getOStream();
1321 if (Value == DT_REL) {
1324 } else if (Value == DT_RELA) {
1340 case DT_PREINIT_ARRAY:
1346 case DT_MIPS_BASE_ADDRESS:
1347 case DT_MIPS_GOTSYM:
1348 case DT_MIPS_RLD_MAP:
1349 case DT_MIPS_RLD_MAP_REL:
1350 case DT_MIPS_PLTGOT:
1351 case DT_MIPS_OPTIONS:
1352 OS << format("0x%" PRIX64, Value);
1356 case DT_MIPS_RLD_VERSION:
1357 case DT_MIPS_LOCAL_GOTNO:
1358 case DT_MIPS_SYMTABNO:
1359 case DT_MIPS_UNREFEXTNO:
1369 case DT_INIT_ARRAYSZ:
1370 case DT_FINI_ARRAYSZ:
1371 case DT_PREINIT_ARRAYSZ:
1372 OS << Value << " (bytes)";
1375 OS << "SharedLibrary (" << getDynamicString(Value) << ")";
1378 OS << "LibrarySoname (" << getDynamicString(Value) << ")";
1382 OS << getDynamicString(Value);
1385 printFlags(Value, makeArrayRef(ElfDynamicDTMipsFlags), OS);
1388 printFlags(Value, makeArrayRef(ElfDynamicDTFlags), OS);
1391 printFlags(Value, makeArrayRef(ElfDynamicDTFlags1), OS);
1394 OS << format("0x%" PRIX64, Value);
1399 template<class ELFT>
1400 void ELFDumper<ELFT>::printUnwindInfo() {
1401 W.startLine() << "UnwindInfo not implemented.\n";
1405 template <> void ELFDumper<ELFType<support::little, false>>::printUnwindInfo() {
1406 const unsigned Machine = Obj->getHeader()->e_machine;
1407 if (Machine == EM_ARM) {
1408 ARM::EHABI::PrinterContext<ELFType<support::little, false>> Ctx(W, Obj);
1409 return Ctx.PrintUnwindInformation();
1411 W.startLine() << "UnwindInfo not implemented.\n";
1415 template<class ELFT>
1416 void ELFDumper<ELFT>::printDynamicTable() {
1417 auto I = dynamic_table_begin();
1418 auto E = dynamic_table_end();
1424 while (I != E && E->getTag() == ELF::DT_NULL)
1426 if (E->getTag() != ELF::DT_NULL)
1430 ptrdiff_t Total = std::distance(I, E);
1434 raw_ostream &OS = W.getOStream();
1435 W.startLine() << "DynamicSection [ (" << Total << " entries)\n";
1437 bool Is64 = ELFT::Is64Bits;
1440 << " Tag" << (Is64 ? " " : " ") << "Type"
1441 << " " << "Name/Value\n";
1443 const Elf_Dyn &Entry = *I;
1447 << format(Is64 ? "0x%016" PRIX64 : "0x%08" PRIX64, Entry.getTag())
1448 << " " << format("%-21s", getTypeString(Entry.getTag()));
1449 printValue(Entry.getTag(), Entry.getVal());
1453 W.startLine() << "]\n";
1456 template<class ELFT>
1457 void ELFDumper<ELFT>::printNeededLibraries() {
1458 ListScope D(W, "NeededLibraries");
1460 typedef std::vector<StringRef> LibsTy;
1463 for (const auto &Entry : dynamic_table())
1464 if (Entry.d_tag == ELF::DT_NEEDED)
1465 Libs.push_back(getDynamicString(Entry.d_un.d_val));
1467 std::stable_sort(Libs.begin(), Libs.end());
1469 for (const auto &L : Libs) {
1470 outs() << " " << L << "\n";
1474 template<class ELFT>
1475 void ELFDumper<ELFT>::printProgramHeaders() {
1476 ListScope L(W, "ProgramHeaders");
1478 for (const Elf_Phdr &Phdr : Obj->program_headers()) {
1479 DictScope P(W, "ProgramHeader");
1481 getElfSegmentType(Obj->getHeader()->e_machine, Phdr.p_type),
1483 W.printHex("Offset", Phdr.p_offset);
1484 W.printHex("VirtualAddress", Phdr.p_vaddr);
1485 W.printHex("PhysicalAddress", Phdr.p_paddr);
1486 W.printNumber("FileSize", Phdr.p_filesz);
1487 W.printNumber("MemSize", Phdr.p_memsz);
1488 W.printFlags("Flags", Phdr.p_flags, makeArrayRef(ElfSegmentFlags));
1489 W.printNumber("Alignment", Phdr.p_align);
1493 template <typename ELFT>
1494 void ELFDumper<ELFT>::printHashTable() {
1495 DictScope D(W, "HashTable");
1498 W.printNumber("Num Buckets", HashTable->nbucket);
1499 W.printNumber("Num Chains", HashTable->nchain);
1500 W.printList("Buckets", HashTable->buckets());
1501 W.printList("Chains", HashTable->chains());
1504 template <typename ELFT> void ELFDumper<ELFT>::printLoadName() {
1505 outs() << "LoadName: " << SOName << '\n';
1508 template <class ELFT>
1509 void ELFDumper<ELFT>::printAttributes() {
1510 W.startLine() << "Attributes not implemented.\n";
1514 template <> void ELFDumper<ELFType<support::little, false>>::printAttributes() {
1515 if (Obj->getHeader()->e_machine != EM_ARM) {
1516 W.startLine() << "Attributes not implemented.\n";
1520 DictScope BA(W, "BuildAttributes");
1521 for (const ELFO::Elf_Shdr &Sec : Obj->sections()) {
1522 if (Sec.sh_type != ELF::SHT_ARM_ATTRIBUTES)
1525 ErrorOr<ArrayRef<uint8_t>> Contents = Obj->getSectionContents(&Sec);
1529 if ((*Contents)[0] != ARMBuildAttrs::Format_Version) {
1530 errs() << "unrecognised FormatVersion: 0x" << utohexstr((*Contents)[0])
1535 W.printHex("FormatVersion", (*Contents)[0]);
1536 if (Contents->size() == 1)
1539 ARMAttributeParser(W).Parse(*Contents);
1545 template <class ELFT> class MipsGOTParser {
1547 typedef object::ELFFile<ELFT> ELFO;
1548 typedef typename ELFO::Elf_Shdr Elf_Shdr;
1549 typedef typename ELFO::Elf_Sym Elf_Sym;
1550 typedef typename ELFO::Elf_Dyn_Range Elf_Dyn_Range;
1551 typedef typename ELFO::Elf_Addr GOTEntry;
1552 typedef typename ELFO::Elf_Rel Elf_Rel;
1553 typedef typename ELFO::Elf_Rela Elf_Rela;
1555 MipsGOTParser(ELFDumper<ELFT> *Dumper, const ELFO *Obj,
1556 Elf_Dyn_Range DynTable, StreamWriter &W);
1562 ELFDumper<ELFT> *Dumper;
1565 llvm::Optional<uint64_t> DtPltGot;
1566 llvm::Optional<uint64_t> DtLocalGotNum;
1567 llvm::Optional<uint64_t> DtGotSym;
1568 llvm::Optional<uint64_t> DtMipsPltGot;
1569 llvm::Optional<uint64_t> DtJmpRel;
1571 std::size_t getGOTTotal(ArrayRef<uint8_t> GOT) const;
1572 const GOTEntry *makeGOTIter(ArrayRef<uint8_t> GOT, std::size_t EntryNum);
1574 void printGotEntry(uint64_t GotAddr, const GOTEntry *BeginIt,
1575 const GOTEntry *It);
1576 void printGlobalGotEntry(uint64_t GotAddr, const GOTEntry *BeginIt,
1577 const GOTEntry *It, const Elf_Sym *Sym,
1578 StringRef StrTable, bool IsDynamic);
1579 void printPLTEntry(uint64_t PLTAddr, const GOTEntry *BeginIt,
1580 const GOTEntry *It, StringRef Purpose);
1581 void printPLTEntry(uint64_t PLTAddr, const GOTEntry *BeginIt,
1582 const GOTEntry *It, StringRef StrTable,
1583 const Elf_Sym *Sym);
1587 template <class ELFT>
1588 MipsGOTParser<ELFT>::MipsGOTParser(ELFDumper<ELFT> *Dumper, const ELFO *Obj,
1589 Elf_Dyn_Range DynTable, StreamWriter &W)
1590 : Dumper(Dumper), Obj(Obj), W(W) {
1591 for (const auto &Entry : DynTable) {
1592 switch (Entry.getTag()) {
1593 case ELF::DT_PLTGOT:
1594 DtPltGot = Entry.getVal();
1596 case ELF::DT_MIPS_LOCAL_GOTNO:
1597 DtLocalGotNum = Entry.getVal();
1599 case ELF::DT_MIPS_GOTSYM:
1600 DtGotSym = Entry.getVal();
1602 case ELF::DT_MIPS_PLTGOT:
1603 DtMipsPltGot = Entry.getVal();
1605 case ELF::DT_JMPREL:
1606 DtJmpRel = Entry.getVal();
1612 template <class ELFT> void MipsGOTParser<ELFT>::parseGOT() {
1613 // See "Global Offset Table" in Chapter 5 in the following document
1614 // for detailed GOT description.
1615 // ftp://www.linux-mips.org/pub/linux/mips/doc/ABI/mipsabi.pdf
1617 W.startLine() << "Cannot find PLTGOT dynamic table tag.\n";
1620 if (!DtLocalGotNum) {
1621 W.startLine() << "Cannot find MIPS_LOCAL_GOTNO dynamic table tag.\n";
1625 W.startLine() << "Cannot find MIPS_GOTSYM dynamic table tag.\n";
1629 const Elf_Shdr *GOTShdr = findSectionByAddress(Obj, *DtPltGot);
1631 W.startLine() << "There is no .got section in the file.\n";
1635 ErrorOr<ArrayRef<uint8_t>> GOT = Obj->getSectionContents(GOTShdr);
1637 W.startLine() << "The .got section is empty.\n";
1641 if (*DtLocalGotNum > getGOTTotal(*GOT)) {
1642 W.startLine() << "MIPS_LOCAL_GOTNO exceeds a number of GOT entries.\n";
1646 const Elf_Shdr *DynSymSec = Obj->getDotDynSymSec();
1647 ErrorOr<StringRef> StrTable = Obj->getStringTableForSymtab(*DynSymSec);
1648 error(StrTable.getError());
1649 const Elf_Sym *DynSymBegin = Obj->symbol_begin(DynSymSec);
1650 const Elf_Sym *DynSymEnd = Obj->symbol_end(DynSymSec);
1651 std::size_t DynSymTotal = std::size_t(std::distance(DynSymBegin, DynSymEnd));
1653 if (*DtGotSym > DynSymTotal) {
1654 W.startLine() << "MIPS_GOTSYM exceeds a number of dynamic symbols.\n";
1658 std::size_t GlobalGotNum = DynSymTotal - *DtGotSym;
1660 if (*DtLocalGotNum + GlobalGotNum > getGOTTotal(*GOT)) {
1661 W.startLine() << "Number of global GOT entries exceeds the size of GOT.\n";
1665 const GOTEntry *GotBegin = makeGOTIter(*GOT, 0);
1666 const GOTEntry *GotLocalEnd = makeGOTIter(*GOT, *DtLocalGotNum);
1667 const GOTEntry *It = GotBegin;
1669 DictScope GS(W, "Primary GOT");
1671 W.printHex("Canonical gp value", GOTShdr->sh_addr + 0x7ff0);
1673 ListScope RS(W, "Reserved entries");
1676 DictScope D(W, "Entry");
1677 printGotEntry(GOTShdr->sh_addr, GotBegin, It++);
1678 W.printString("Purpose", StringRef("Lazy resolver"));
1681 if (It != GotLocalEnd && (*It >> (sizeof(GOTEntry) * 8 - 1)) != 0) {
1682 DictScope D(W, "Entry");
1683 printGotEntry(GOTShdr->sh_addr, GotBegin, It++);
1684 W.printString("Purpose", StringRef("Module pointer (GNU extension)"));
1688 ListScope LS(W, "Local entries");
1689 for (; It != GotLocalEnd; ++It) {
1690 DictScope D(W, "Entry");
1691 printGotEntry(GOTShdr->sh_addr, GotBegin, It);
1695 ListScope GS(W, "Global entries");
1697 const GOTEntry *GotGlobalEnd =
1698 makeGOTIter(*GOT, *DtLocalGotNum + GlobalGotNum);
1699 const Elf_Sym *GotDynSym = DynSymBegin + *DtGotSym;
1700 for (; It != GotGlobalEnd; ++It) {
1701 DictScope D(W, "Entry");
1702 printGlobalGotEntry(GOTShdr->sh_addr, GotBegin, It, GotDynSym++,
1707 std::size_t SpecGotNum = getGOTTotal(*GOT) - *DtLocalGotNum - GlobalGotNum;
1708 W.printNumber("Number of TLS and multi-GOT entries", uint64_t(SpecGotNum));
1711 template <class ELFT> void MipsGOTParser<ELFT>::parsePLT() {
1712 if (!DtMipsPltGot) {
1713 W.startLine() << "Cannot find MIPS_PLTGOT dynamic table tag.\n";
1717 W.startLine() << "Cannot find JMPREL dynamic table tag.\n";
1721 const Elf_Shdr *PLTShdr = findSectionByAddress(Obj, *DtMipsPltGot);
1723 W.startLine() << "There is no .got.plt section in the file.\n";
1726 ErrorOr<ArrayRef<uint8_t>> PLT = Obj->getSectionContents(PLTShdr);
1728 W.startLine() << "The .got.plt section is empty.\n";
1732 const Elf_Shdr *PLTRelShdr = findSectionByAddress(Obj, *DtJmpRel);
1734 W.startLine() << "There is no .rel.plt section in the file.\n";
1737 ErrorOr<const Elf_Shdr *> SymTableOrErr =
1738 Obj->getSection(PLTRelShdr->sh_link);
1739 error(SymTableOrErr.getError());
1740 ErrorOr<StringRef> StrTable = Obj->getStringTableForSymtab(**SymTableOrErr);
1741 error(StrTable.getError());
1743 const GOTEntry *PLTBegin = makeGOTIter(*PLT, 0);
1744 const GOTEntry *PLTEnd = makeGOTIter(*PLT, getGOTTotal(*PLT));
1745 const GOTEntry *It = PLTBegin;
1747 DictScope GS(W, "PLT GOT");
1749 ListScope RS(W, "Reserved entries");
1750 printPLTEntry(PLTShdr->sh_addr, PLTBegin, It++, "PLT lazy resolver");
1752 printPLTEntry(PLTShdr->sh_addr, PLTBegin, It++, "Module pointer");
1755 ListScope GS(W, "Entries");
1757 switch (PLTRelShdr->sh_type) {
1759 for (const Elf_Rel *RI = Obj->rel_begin(PLTRelShdr),
1760 *RE = Obj->rel_end(PLTRelShdr);
1761 RI != RE && It != PLTEnd; ++RI, ++It) {
1762 const Elf_Sym *Sym =
1763 Obj->getRelocationSymbol(&*PLTRelShdr, &*RI).second;
1764 printPLTEntry(PLTShdr->sh_addr, PLTBegin, It, *StrTable, Sym);
1768 for (const Elf_Rela *RI = Obj->rela_begin(PLTRelShdr),
1769 *RE = Obj->rela_end(PLTRelShdr);
1770 RI != RE && It != PLTEnd; ++RI, ++It) {
1771 const Elf_Sym *Sym =
1772 Obj->getRelocationSymbol(&*PLTRelShdr, &*RI).second;
1773 printPLTEntry(PLTShdr->sh_addr, PLTBegin, It, *StrTable, Sym);
1780 template <class ELFT>
1781 std::size_t MipsGOTParser<ELFT>::getGOTTotal(ArrayRef<uint8_t> GOT) const {
1782 return GOT.size() / sizeof(GOTEntry);
1785 template <class ELFT>
1786 const typename MipsGOTParser<ELFT>::GOTEntry *
1787 MipsGOTParser<ELFT>::makeGOTIter(ArrayRef<uint8_t> GOT, std::size_t EntryNum) {
1788 const char *Data = reinterpret_cast<const char *>(GOT.data());
1789 return reinterpret_cast<const GOTEntry *>(Data + EntryNum * sizeof(GOTEntry));
1792 template <class ELFT>
1793 void MipsGOTParser<ELFT>::printGotEntry(uint64_t GotAddr,
1794 const GOTEntry *BeginIt,
1795 const GOTEntry *It) {
1796 int64_t Offset = std::distance(BeginIt, It) * sizeof(GOTEntry);
1797 W.printHex("Address", GotAddr + Offset);
1798 W.printNumber("Access", Offset - 0x7ff0);
1799 W.printHex("Initial", *It);
1802 template <class ELFT>
1803 void MipsGOTParser<ELFT>::printGlobalGotEntry(
1804 uint64_t GotAddr, const GOTEntry *BeginIt, const GOTEntry *It,
1805 const Elf_Sym *Sym, StringRef StrTable, bool IsDynamic) {
1806 printGotEntry(GotAddr, BeginIt, It);
1808 W.printHex("Value", Sym->st_value);
1809 W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes));
1811 unsigned SectionIndex = 0;
1812 StringRef SectionName;
1813 getSectionNameIndex(*Obj, Sym, SectionName, SectionIndex);
1814 W.printHex("Section", SectionName, SectionIndex);
1816 std::string FullSymbolName =
1817 Dumper->getFullSymbolName(Sym, StrTable, IsDynamic);
1818 W.printNumber("Name", FullSymbolName, Sym->st_name);
1821 template <class ELFT>
1822 void MipsGOTParser<ELFT>::printPLTEntry(uint64_t PLTAddr,
1823 const GOTEntry *BeginIt,
1824 const GOTEntry *It, StringRef Purpose) {
1825 DictScope D(W, "Entry");
1826 int64_t Offset = std::distance(BeginIt, It) * sizeof(GOTEntry);
1827 W.printHex("Address", PLTAddr + Offset);
1828 W.printHex("Initial", *It);
1829 W.printString("Purpose", Purpose);
1832 template <class ELFT>
1833 void MipsGOTParser<ELFT>::printPLTEntry(uint64_t PLTAddr,
1834 const GOTEntry *BeginIt,
1835 const GOTEntry *It, StringRef StrTable,
1836 const Elf_Sym *Sym) {
1837 DictScope D(W, "Entry");
1838 int64_t Offset = std::distance(BeginIt, It) * sizeof(GOTEntry);
1839 W.printHex("Address", PLTAddr + Offset);
1840 W.printHex("Initial", *It);
1841 W.printHex("Value", Sym->st_value);
1842 W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes));
1844 unsigned SectionIndex = 0;
1845 StringRef SectionName;
1846 getSectionNameIndex(*Obj, Sym, SectionName, SectionIndex);
1847 W.printHex("Section", SectionName, SectionIndex);
1849 std::string FullSymbolName = Dumper->getFullSymbolName(Sym, StrTable, true);
1850 W.printNumber("Name", FullSymbolName, Sym->st_name);
1853 template <class ELFT> void ELFDumper<ELFT>::printMipsPLTGOT() {
1854 if (Obj->getHeader()->e_machine != EM_MIPS) {
1855 W.startLine() << "MIPS PLT GOT is available for MIPS targets only.\n";
1859 MipsGOTParser<ELFT> GOTParser(this, Obj, dynamic_table(), W);
1860 GOTParser.parseGOT();
1861 GOTParser.parsePLT();
1864 static const EnumEntry<unsigned> ElfMipsISAExtType[] = {
1865 {"None", Mips::AFL_EXT_NONE},
1866 {"Broadcom SB-1", Mips::AFL_EXT_SB1},
1867 {"Cavium Networks Octeon", Mips::AFL_EXT_OCTEON},
1868 {"Cavium Networks Octeon2", Mips::AFL_EXT_OCTEON2},
1869 {"Cavium Networks OcteonP", Mips::AFL_EXT_OCTEONP},
1870 {"Cavium Networks Octeon3", Mips::AFL_EXT_OCTEON3},
1871 {"LSI R4010", Mips::AFL_EXT_4010},
1872 {"Loongson 2E", Mips::AFL_EXT_LOONGSON_2E},
1873 {"Loongson 2F", Mips::AFL_EXT_LOONGSON_2F},
1874 {"Loongson 3A", Mips::AFL_EXT_LOONGSON_3A},
1875 {"MIPS R4650", Mips::AFL_EXT_4650},
1876 {"MIPS R5900", Mips::AFL_EXT_5900},
1877 {"MIPS R10000", Mips::AFL_EXT_10000},
1878 {"NEC VR4100", Mips::AFL_EXT_4100},
1879 {"NEC VR4111/VR4181", Mips::AFL_EXT_4111},
1880 {"NEC VR4120", Mips::AFL_EXT_4120},
1881 {"NEC VR5400", Mips::AFL_EXT_5400},
1882 {"NEC VR5500", Mips::AFL_EXT_5500},
1883 {"RMI Xlr", Mips::AFL_EXT_XLR},
1884 {"Toshiba R3900", Mips::AFL_EXT_3900}
1887 static const EnumEntry<unsigned> ElfMipsASEFlags[] = {
1888 {"DSP", Mips::AFL_ASE_DSP},
1889 {"DSPR2", Mips::AFL_ASE_DSPR2},
1890 {"Enhanced VA Scheme", Mips::AFL_ASE_EVA},
1891 {"MCU", Mips::AFL_ASE_MCU},
1892 {"MDMX", Mips::AFL_ASE_MDMX},
1893 {"MIPS-3D", Mips::AFL_ASE_MIPS3D},
1894 {"MT", Mips::AFL_ASE_MT},
1895 {"SmartMIPS", Mips::AFL_ASE_SMARTMIPS},
1896 {"VZ", Mips::AFL_ASE_VIRT},
1897 {"MSA", Mips::AFL_ASE_MSA},
1898 {"MIPS16", Mips::AFL_ASE_MIPS16},
1899 {"microMIPS", Mips::AFL_ASE_MICROMIPS},
1900 {"XPA", Mips::AFL_ASE_XPA}
1903 static const EnumEntry<unsigned> ElfMipsFpABIType[] = {
1904 {"Hard or soft float", Mips::Val_GNU_MIPS_ABI_FP_ANY},
1905 {"Hard float (double precision)", Mips::Val_GNU_MIPS_ABI_FP_DOUBLE},
1906 {"Hard float (single precision)", Mips::Val_GNU_MIPS_ABI_FP_SINGLE},
1907 {"Soft float", Mips::Val_GNU_MIPS_ABI_FP_SOFT},
1908 {"Hard float (MIPS32r2 64-bit FPU 12 callee-saved)",
1909 Mips::Val_GNU_MIPS_ABI_FP_OLD_64},
1910 {"Hard float (32-bit CPU, Any FPU)", Mips::Val_GNU_MIPS_ABI_FP_XX},
1911 {"Hard float (32-bit CPU, 64-bit FPU)", Mips::Val_GNU_MIPS_ABI_FP_64},
1912 {"Hard float compat (32-bit CPU, 64-bit FPU)",
1913 Mips::Val_GNU_MIPS_ABI_FP_64A}
1916 static const EnumEntry<unsigned> ElfMipsFlags1[] {
1917 {"ODDSPREG", Mips::AFL_FLAGS1_ODDSPREG},
1920 static int getMipsRegisterSize(uint8_t Flag) {
1922 case Mips::AFL_REG_NONE:
1924 case Mips::AFL_REG_32:
1926 case Mips::AFL_REG_64:
1928 case Mips::AFL_REG_128:
1935 template <class ELFT> void ELFDumper<ELFT>::printMipsABIFlags() {
1936 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".MIPS.abiflags");
1938 W.startLine() << "There is no .MIPS.abiflags section in the file.\n";
1941 ErrorOr<ArrayRef<uint8_t>> Sec = Obj->getSectionContents(Shdr);
1943 W.startLine() << "The .MIPS.abiflags section is empty.\n";
1946 if (Sec->size() != sizeof(Elf_Mips_ABIFlags<ELFT>)) {
1947 W.startLine() << "The .MIPS.abiflags section has a wrong size.\n";
1951 auto *Flags = reinterpret_cast<const Elf_Mips_ABIFlags<ELFT> *>(Sec->data());
1953 raw_ostream &OS = W.getOStream();
1954 DictScope GS(W, "MIPS ABI Flags");
1956 W.printNumber("Version", Flags->version);
1957 W.startLine() << "ISA: ";
1958 if (Flags->isa_rev <= 1)
1959 OS << format("MIPS%u", Flags->isa_level);
1961 OS << format("MIPS%ur%u", Flags->isa_level, Flags->isa_rev);
1963 W.printEnum("ISA Extension", Flags->isa_ext, makeArrayRef(ElfMipsISAExtType));
1964 W.printFlags("ASEs", Flags->ases, makeArrayRef(ElfMipsASEFlags));
1965 W.printEnum("FP ABI", Flags->fp_abi, makeArrayRef(ElfMipsFpABIType));
1966 W.printNumber("GPR size", getMipsRegisterSize(Flags->gpr_size));
1967 W.printNumber("CPR1 size", getMipsRegisterSize(Flags->cpr1_size));
1968 W.printNumber("CPR2 size", getMipsRegisterSize(Flags->cpr2_size));
1969 W.printFlags("Flags 1", Flags->flags1, makeArrayRef(ElfMipsFlags1));
1970 W.printHex("Flags 2", Flags->flags2);
1973 template <class ELFT> void ELFDumper<ELFT>::printMipsReginfo() {
1974 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".reginfo");
1976 W.startLine() << "There is no .reginfo section in the file.\n";
1979 ErrorOr<ArrayRef<uint8_t>> Sec = Obj->getSectionContents(Shdr);
1981 W.startLine() << "The .reginfo section is empty.\n";
1984 if (Sec->size() != sizeof(Elf_Mips_RegInfo<ELFT>)) {
1985 W.startLine() << "The .reginfo section has a wrong size.\n";
1989 auto *Reginfo = reinterpret_cast<const Elf_Mips_RegInfo<ELFT> *>(Sec->data());
1991 DictScope GS(W, "MIPS RegInfo");
1992 W.printHex("GP", Reginfo->ri_gp_value);
1993 W.printHex("General Mask", Reginfo->ri_gprmask);
1994 W.printHex("Co-Proc Mask0", Reginfo->ri_cprmask[0]);
1995 W.printHex("Co-Proc Mask1", Reginfo->ri_cprmask[1]);
1996 W.printHex("Co-Proc Mask2", Reginfo->ri_cprmask[2]);
1997 W.printHex("Co-Proc Mask3", Reginfo->ri_cprmask[3]);
2000 template <class ELFT> void ELFDumper<ELFT>::printStackMap() const {
2001 const Elf_Shdr *StackMapSection = nullptr;
2002 for (const auto &Sec : Obj->sections()) {
2003 ErrorOr<StringRef> Name = Obj->getSectionName(&Sec);
2004 if (*Name == ".llvm_stackmaps") {
2005 StackMapSection = &Sec;
2010 if (!StackMapSection)
2013 StringRef StackMapContents;
2014 ErrorOr<ArrayRef<uint8_t>> StackMapContentsArray =
2015 Obj->getSectionContents(StackMapSection);
2017 prettyPrintStackMap(
2019 StackMapV1Parser<ELFT::TargetEndianness>(*StackMapContentsArray));