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Eugene Zelenko416e0592017-06-09 21:41:54 +00001//===- ELFDumper.cpp - ELF-specific dumper --------------------------------===//
George Rimar47936762016-01-16 00:49:19 +00002//
Chandler Carruth2946cd72019-01-19 08:50:56 +00003// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
George Rimar47936762016-01-16 00:49:19 +00006//
7//===----------------------------------------------------------------------===//
8///
9/// \file
Adrian Prantl5f8f34e42018-05-01 15:54:18 +000010/// This file implements the ELF-specific dumper for llvm-readobj.
George Rimar47936762016-01-16 00:49:19 +000011///
12//===----------------------------------------------------------------------===//
13
George Rimar47936762016-01-16 00:49:19 +000014#include "ARMEHABIPrinter.h"
Rafael Auler86fb7bf2018-03-08 00:46:53 +000015#include "DwarfCFIEHPrinter.h"
George Rimar47936762016-01-16 00:49:19 +000016#include "Error.h"
17#include "ObjDumper.h"
18#include "StackMapPrinter.h"
Zachary Turner88bb1632016-05-03 00:28:04 +000019#include "llvm-readobj.h"
Eugene Zelenko416e0592017-06-09 21:41:54 +000020#include "llvm/ADT/ArrayRef.h"
George Rimar762abff62017-09-16 14:29:51 +000021#include "llvm/ADT/DenseMap.h"
Matt Davis0d0e9c02019-02-05 21:01:01 +000022#include "llvm/ADT/DenseSet.h"
George Rimar47936762016-01-16 00:49:19 +000023#include "llvm/ADT/Optional.h"
Eugene Zelenko416e0592017-06-09 21:41:54 +000024#include "llvm/ADT/PointerIntPair.h"
Jordan Rupprecht4f36c7a2018-11-07 23:53:50 +000025#include "llvm/ADT/STLExtras.h"
George Rimar47936762016-01-16 00:49:19 +000026#include "llvm/ADT/SmallString.h"
Eugene Zelenko416e0592017-06-09 21:41:54 +000027#include "llvm/ADT/SmallVector.h"
George Rimar47936762016-01-16 00:49:19 +000028#include "llvm/ADT/StringExtras.h"
Eugene Zelenko416e0592017-06-09 21:41:54 +000029#include "llvm/ADT/StringRef.h"
30#include "llvm/ADT/Twine.h"
Scott Linderf5b36e52018-12-12 19:39:27 +000031#include "llvm/BinaryFormat/AMDGPUMetadataVerifier.h"
Eugene Zelenko416e0592017-06-09 21:41:54 +000032#include "llvm/BinaryFormat/ELF.h"
James Hendersone50d9cb2019-01-17 15:34:12 +000033#include "llvm/Demangle/Demangle.h"
Eugene Zelenko416e0592017-06-09 21:41:54 +000034#include "llvm/Object/ELF.h"
George Rimar47936762016-01-16 00:49:19 +000035#include "llvm/Object/ELFObjectFile.h"
Eugene Zelenko416e0592017-06-09 21:41:54 +000036#include "llvm/Object/ELFTypes.h"
37#include "llvm/Object/Error.h"
38#include "llvm/Object/ObjectFile.h"
39#include "llvm/Object/StackMapParser.h"
Konstantin Zhuravlyovb3c605d2017-10-14 18:21:42 +000040#include "llvm/Support/AMDGPUMetadata.h"
Sam Parker34315ee2017-01-13 10:50:01 +000041#include "llvm/Support/ARMAttributeParser.h"
George Rimar47936762016-01-16 00:49:19 +000042#include "llvm/Support/ARMBuildAttributes.h"
Eugene Zelenko416e0592017-06-09 21:41:54 +000043#include "llvm/Support/Casting.h"
George Rimar47936762016-01-16 00:49:19 +000044#include "llvm/Support/Compiler.h"
Eugene Zelenko416e0592017-06-09 21:41:54 +000045#include "llvm/Support/Endian.h"
46#include "llvm/Support/ErrorHandling.h"
George Rimar47936762016-01-16 00:49:19 +000047#include "llvm/Support/Format.h"
Jordan Rupprecht4f36c7a2018-11-07 23:53:50 +000048#include "llvm/Support/FormatVariadic.h"
Zachary Turner88bb1632016-05-03 00:28:04 +000049#include "llvm/Support/FormattedStream.h"
Peter Collingbourne3e227332018-07-17 22:17:18 +000050#include "llvm/Support/LEB128.h"
George Rimar47936762016-01-16 00:49:19 +000051#include "llvm/Support/MathExtras.h"
52#include "llvm/Support/MipsABIFlags.h"
Zachary Turner88bb1632016-05-03 00:28:04 +000053#include "llvm/Support/ScopedPrinter.h"
George Rimar47936762016-01-16 00:49:19 +000054#include "llvm/Support/raw_ostream.h"
Eugene Zelenko416e0592017-06-09 21:41:54 +000055#include <algorithm>
56#include <cinttypes>
57#include <cstddef>
58#include <cstdint>
59#include <cstdlib>
60#include <iterator>
61#include <memory>
62#include <string>
63#include <system_error>
64#include <vector>
George Rimar47936762016-01-16 00:49:19 +000065
66using namespace llvm;
67using namespace llvm::object;
68using namespace ELF;
69
George Rimar9e88a262019-05-14 14:22:44 +000070#define LLVM_READOBJ_ENUM_CASE(ns, enum) \
71 case ns::enum: \
72 return #enum;
George Rimar47936762016-01-16 00:49:19 +000073
George Rimar9e88a262019-05-14 14:22:44 +000074#define ENUM_ENT(enum, altName) \
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +000075 { #enum, altName, ELF::enum }
76
George Rimar9e88a262019-05-14 14:22:44 +000077#define ENUM_ENT_1(enum) \
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +000078 { #enum, #enum, ELF::enum }
79
Hemant Kulkarni7d564ba2016-03-28 17:20:23 +000080#define LLVM_READOBJ_PHDR_ENUM(ns, enum) \
81 case ns::enum: \
82 return std::string(#enum).substr(3);
83
Hemant Kulkarni206ba842016-03-09 19:16:13 +000084#define TYPEDEF_ELF_TYPES(ELFT) \
Eugene Zelenko416e0592017-06-09 21:41:54 +000085 using ELFO = ELFFile<ELFT>; \
Rui Ueyama478d6352018-01-12 02:28:31 +000086 using Elf_Addr = typename ELFT::Addr; \
87 using Elf_Shdr = typename ELFT::Shdr; \
88 using Elf_Sym = typename ELFT::Sym; \
89 using Elf_Dyn = typename ELFT::Dyn; \
90 using Elf_Dyn_Range = typename ELFT::DynRange; \
91 using Elf_Rel = typename ELFT::Rel; \
92 using Elf_Rela = typename ELFT::Rela; \
Jake Ehrlich0f440d82018-06-28 21:07:34 +000093 using Elf_Relr = typename ELFT::Relr; \
Rui Ueyama478d6352018-01-12 02:28:31 +000094 using Elf_Rel_Range = typename ELFT::RelRange; \
95 using Elf_Rela_Range = typename ELFT::RelaRange; \
Jake Ehrlich0f440d82018-06-28 21:07:34 +000096 using Elf_Relr_Range = typename ELFT::RelrRange; \
Rui Ueyama478d6352018-01-12 02:28:31 +000097 using Elf_Phdr = typename ELFT::Phdr; \
98 using Elf_Half = typename ELFT::Half; \
99 using Elf_Ehdr = typename ELFT::Ehdr; \
100 using Elf_Word = typename ELFT::Word; \
101 using Elf_Hash = typename ELFT::Hash; \
102 using Elf_GnuHash = typename ELFT::GnuHash; \
George Rimarec895f12019-05-16 06:22:51 +0000103 using Elf_Note = typename ELFT::Note; \
Rui Ueyama478d6352018-01-12 02:28:31 +0000104 using Elf_Sym_Range = typename ELFT::SymRange; \
105 using Elf_Versym = typename ELFT::Versym; \
106 using Elf_Verneed = typename ELFT::Verneed; \
107 using Elf_Vernaux = typename ELFT::Vernaux; \
108 using Elf_Verdef = typename ELFT::Verdef; \
109 using Elf_Verdaux = typename ELFT::Verdaux; \
Michael J. Spencerae6eeae2018-06-02 16:33:01 +0000110 using Elf_CGProfile = typename ELFT::CGProfile; \
Rui Ueyama478d6352018-01-12 02:28:31 +0000111 using uintX_t = typename ELFT::uint;
Hemant Kulkarni206ba842016-03-09 19:16:13 +0000112
George Rimar47936762016-01-16 00:49:19 +0000113namespace {
114
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +0000115template <class ELFT> class DumpStyle;
116
Rafael Espindolace2fbdd2016-02-17 15:38:21 +0000117/// Represents a contiguous uniform range in the file. We cannot just create a
118/// range directly because when creating one of these from the .dynamic table
119/// the size, entity size and virtual address are different entries in arbitrary
120/// order (DT_REL, DT_RELSZ, DT_RELENT for example).
Rafael Espindola65a6fd82016-02-16 14:27:33 +0000121struct DynRegionInfo {
Eugene Zelenko416e0592017-06-09 21:41:54 +0000122 DynRegionInfo() = default;
Rafael Espindolace2fbdd2016-02-17 15:38:21 +0000123 DynRegionInfo(const void *A, uint64_t S, uint64_t ES)
124 : Addr(A), Size(S), EntSize(ES) {}
Eugene Zelenko416e0592017-06-09 21:41:54 +0000125
Adrian Prantl5f8f34e42018-05-01 15:54:18 +0000126 /// Address in current address space.
Eugene Zelenko416e0592017-06-09 21:41:54 +0000127 const void *Addr = nullptr;
Adrian Prantl5f8f34e42018-05-01 15:54:18 +0000128 /// Size in bytes of the region.
Eugene Zelenko416e0592017-06-09 21:41:54 +0000129 uint64_t Size = 0;
Adrian Prantl5f8f34e42018-05-01 15:54:18 +0000130 /// Size of each entity in the region.
Eugene Zelenko416e0592017-06-09 21:41:54 +0000131 uint64_t EntSize = 0;
Rafael Espindolac70aeda2016-02-16 14:50:39 +0000132
Rafael Espindolaaafcf752016-04-05 14:47:22 +0000133 template <typename Type> ArrayRef<Type> getAsArrayRef() const {
Rafael Espindolac70aeda2016-02-16 14:50:39 +0000134 const Type *Start = reinterpret_cast<const Type *>(Addr);
Rafael Espindola944f6552016-02-16 15:16:00 +0000135 if (!Start)
136 return {Start, Start};
George Rimarbadece02019-07-11 12:26:48 +0000137 if (EntSize != sizeof(Type) || Size % EntSize) {
138 // TODO: Add a section index to this warning.
139 reportWarning("invalid section size (" + Twine(Size) +
140 ") or entity size (" + Twine(EntSize) + ")");
141 return {Start, Start};
142 }
Rafael Espindolac70aeda2016-02-16 14:50:39 +0000143 return {Start, Start + (Size / EntSize)};
144 }
Rafael Espindola65a6fd82016-02-16 14:27:33 +0000145};
146
George Rimar9e88a262019-05-14 14:22:44 +0000147template <typename ELFT> class ELFDumper : public ObjDumper {
George Rimar47936762016-01-16 00:49:19 +0000148public:
Luke Cheesemanf57d7d82018-12-18 10:37:42 +0000149 ELFDumper(const object::ELFObjectFile<ELFT> *ObjF, ScopedPrinter &Writer);
George Rimar47936762016-01-16 00:49:19 +0000150
151 void printFileHeaders() override;
Jordan Rupprechtdbf552c2018-11-12 18:02:38 +0000152 void printSectionHeaders() override;
George Rimar47936762016-01-16 00:49:19 +0000153 void printRelocations() override;
154 void printDynamicRelocations() override;
James Henderson21ed8682019-01-23 16:15:39 +0000155 void printSymbols(bool PrintSymbols, bool PrintDynamicSymbols) override;
James Henderson5fc812f2019-01-22 09:35:35 +0000156 void printHashSymbols() override;
George Rimar47936762016-01-16 00:49:19 +0000157 void printUnwindInfo() override;
158
159 void printDynamicTable() override;
160 void printNeededLibraries() override;
Matt Davis50ca8ed2019-02-01 18:51:10 +0000161 void printProgramHeaders(bool PrintProgramHeaders,
162 cl::boolOrDefault PrintSectionMapping) override;
George Rimar47936762016-01-16 00:49:19 +0000163 void printHashTable() override;
164 void printGnuHashTable() override;
165 void printLoadName() override;
166 void printVersionInfo() override;
Hemant Kulkarniab4a46f2016-01-26 19:46:39 +0000167 void printGroupSections() override;
George Rimar47936762016-01-16 00:49:19 +0000168
169 void printAttributes() override;
170 void printMipsPLTGOT() override;
171 void printMipsABIFlags() override;
172 void printMipsReginfo() override;
Simon Atanasyan8a71b532016-05-04 05:58:57 +0000173 void printMipsOptions() override;
George Rimar47936762016-01-16 00:49:19 +0000174
175 void printStackMap() const override;
176
Hemant Kulkarni9b1b7f02016-04-11 17:15:30 +0000177 void printHashHistogram() override;
178
Michael J. Spencerae6eeae2018-06-02 16:33:01 +0000179 void printCGProfile() override;
Peter Collingbourne3e227332018-07-17 22:17:18 +0000180 void printAddrsig() override;
Michael J. Spencerae6eeae2018-06-02 16:33:01 +0000181
Saleem Abdulrasool6a405442016-08-30 18:52:02 +0000182 void printNotes() override;
183
Saleem Abdulrasoolb36fbbc2018-01-30 16:29:29 +0000184 void printELFLinkerOptions() override;
185
George Rimara1370872019-07-16 11:07:30 +0000186 const object::ELFObjectFile<ELFT> *getElfObject() const { return ObjF; };
187
George Rimar47936762016-01-16 00:49:19 +0000188private:
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +0000189 std::unique_ptr<DumpStyle<ELFT>> ELFDumperStyle;
Eugene Zelenko416e0592017-06-09 21:41:54 +0000190
Rafael Espindola6bc29902016-10-06 14:07:26 +0000191 TYPEDEF_ELF_TYPES(ELFT)
George Rimar47936762016-01-16 00:49:19 +0000192
Rafael Espindolae17c3f32016-02-17 16:48:00 +0000193 DynRegionInfo checkDRI(DynRegionInfo DRI) {
Luke Cheesemanf57d7d82018-12-18 10:37:42 +0000194 const ELFFile<ELFT> *Obj = ObjF->getELFFile();
Rafael Espindolae17c3f32016-02-17 16:48:00 +0000195 if (DRI.Addr < Obj->base() ||
Xing GUO0df95d22019-04-08 11:48:36 +0000196 reinterpret_cast<const uint8_t *>(DRI.Addr) + DRI.Size >
197 Obj->base() + Obj->getBufSize())
Rafael Espindolae17c3f32016-02-17 16:48:00 +0000198 error(llvm::object::object_error::parse_failed);
199 return DRI;
200 }
201
202 DynRegionInfo createDRIFrom(const Elf_Phdr *P, uintX_t EntSize) {
George Rimar9e88a262019-05-14 14:22:44 +0000203 return checkDRI(
204 {ObjF->getELFFile()->base() + P->p_offset, P->p_filesz, EntSize});
Rafael Espindolae17c3f32016-02-17 16:48:00 +0000205 }
206
Rafael Espindolace2fbdd2016-02-17 15:38:21 +0000207 DynRegionInfo createDRIFrom(const Elf_Shdr *S) {
George Rimar9e88a262019-05-14 14:22:44 +0000208 return checkDRI(
209 {ObjF->getELFFile()->base() + S->sh_offset, S->sh_size, S->sh_entsize});
Rafael Espindolace2fbdd2016-02-17 15:38:21 +0000210 }
211
George Rimar72f821d2019-05-20 15:41:48 +0000212 void loadDynamicTable(const ELFFile<ELFT> *Obj);
213 void parseDynamicTable();
Michael J. Spencer60d82b22016-02-11 04:59:37 +0000214
George Rimar47936762016-01-16 00:49:19 +0000215 StringRef getSymbolVersion(StringRef StrTab, const Elf_Sym *symb,
Hemant Kulkarnic030f232016-03-15 17:25:31 +0000216 bool &IsDefault) const;
217 void LoadVersionMap() const;
George Rimar47936762016-01-16 00:49:19 +0000218 void LoadVersionNeeds(const Elf_Shdr *ec) const;
219 void LoadVersionDefs(const Elf_Shdr *sec) const;
220
Luke Cheesemanf57d7d82018-12-18 10:37:42 +0000221 const object::ELFObjectFile<ELFT> *ObjF;
Simon Atanasyan72155c32016-01-16 22:40:09 +0000222 DynRegionInfo DynRelRegion;
George Rimar47936762016-01-16 00:49:19 +0000223 DynRegionInfo DynRelaRegion;
Jake Ehrlich0f440d82018-06-28 21:07:34 +0000224 DynRegionInfo DynRelrRegion;
Rafael Espindola944f6552016-02-16 15:16:00 +0000225 DynRegionInfo DynPLTRelRegion;
Rafael Espindolace2fbdd2016-02-17 15:38:21 +0000226 DynRegionInfo DynSymRegion;
Rafael Espindolae17c3f32016-02-17 16:48:00 +0000227 DynRegionInfo DynamicTable;
George Rimar47936762016-01-16 00:49:19 +0000228 StringRef DynamicStringTable;
Yuanfang Chenabbc3ff2019-07-18 17:04:28 +0000229 std::string SOName = "<Not found>";
George Rimar47936762016-01-16 00:49:19 +0000230 const Elf_Hash *HashTable = nullptr;
231 const Elf_GnuHash *GnuHashTable = nullptr;
George Rimar47936762016-01-16 00:49:19 +0000232 const Elf_Shdr *DotSymtabSec = nullptr;
Michael J. Spencerae6eeae2018-06-02 16:33:01 +0000233 const Elf_Shdr *DotCGProfileSec = nullptr;
Peter Collingbourne3e227332018-07-17 22:17:18 +0000234 const Elf_Shdr *DotAddrsigSec = nullptr;
Hemant Kulkarnia11fbe12016-03-21 17:18:23 +0000235 StringRef DynSymtabName;
George Rimar47936762016-01-16 00:49:19 +0000236 ArrayRef<Elf_Word> ShndxTable;
237
George Rimarec895f12019-05-16 06:22:51 +0000238 const Elf_Shdr *SymbolVersionSection = nullptr; // .gnu.version
Xing GUO09a77fe2019-03-29 01:26:36 +0000239 const Elf_Shdr *SymbolVersionNeedSection = nullptr; // .gnu.version_r
George Rimarec895f12019-05-16 06:22:51 +0000240 const Elf_Shdr *SymbolVersionDefSection = nullptr; // .gnu.version_d
George Rimar47936762016-01-16 00:49:19 +0000241
242 // Records for each version index the corresponding Verdef or Vernaux entry.
243 // This is filled the first time LoadVersionMap() is called.
244 class VersionMapEntry : public PointerIntPair<const void *, 1> {
245 public:
246 // If the integer is 0, this is an Elf_Verdef*.
247 // If the integer is 1, this is an Elf_Vernaux*.
248 VersionMapEntry() : PointerIntPair<const void *, 1>(nullptr, 0) {}
249 VersionMapEntry(const Elf_Verdef *verdef)
250 : PointerIntPair<const void *, 1>(verdef, 0) {}
251 VersionMapEntry(const Elf_Vernaux *vernaux)
252 : PointerIntPair<const void *, 1>(vernaux, 1) {}
Eugene Zelenko416e0592017-06-09 21:41:54 +0000253
George Rimar47936762016-01-16 00:49:19 +0000254 bool isNull() const { return getPointer() == nullptr; }
255 bool isVerdef() const { return !isNull() && getInt() == 0; }
256 bool isVernaux() const { return !isNull() && getInt() == 1; }
257 const Elf_Verdef *getVerdef() const {
258 return isVerdef() ? (const Elf_Verdef *)getPointer() : nullptr;
259 }
260 const Elf_Vernaux *getVernaux() const {
261 return isVernaux() ? (const Elf_Vernaux *)getPointer() : nullptr;
262 }
263 };
264 mutable SmallVector<VersionMapEntry, 16> VersionMap;
265
266public:
267 Elf_Dyn_Range dynamic_table() const {
Simon Atanasyan8362cbe2019-05-24 12:22:53 +0000268 // A valid .dynamic section contains an array of entries terminated
269 // with a DT_NULL entry. However, sometimes the section content may
270 // continue past the DT_NULL entry, so to dump the section correctly,
271 // we first find the end of the entries by iterating over them.
272 Elf_Dyn_Range Table = DynamicTable.getAsArrayRef<Elf_Dyn>();
273
274 size_t Size = 0;
275 while (Size < Table.size())
276 if (Table[Size++].getTag() == DT_NULL)
277 break;
278
279 return Table.slice(0, Size);
George Rimar47936762016-01-16 00:49:19 +0000280 }
281
Rafael Espindolace2fbdd2016-02-17 15:38:21 +0000282 Elf_Sym_Range dynamic_symbols() const {
Rafael Espindolaaafcf752016-04-05 14:47:22 +0000283 return DynSymRegion.getAsArrayRef<Elf_Sym>();
Rafael Espindolace2fbdd2016-02-17 15:38:21 +0000284 }
285
Hemant Kulkarnic030f232016-03-15 17:25:31 +0000286 Elf_Rel_Range dyn_rels() const;
287 Elf_Rela_Range dyn_relas() const;
Jake Ehrlich0f440d82018-06-28 21:07:34 +0000288 Elf_Relr_Range dyn_relrs() const;
George Rimar47936762016-01-16 00:49:19 +0000289 std::string getFullSymbolName(const Elf_Sym *Symbol, StringRef StrTable,
Hemant Kulkarnic030f232016-03-15 17:25:31 +0000290 bool IsDynamic) const;
Simon Atanasyan62d32592017-12-21 10:26:02 +0000291 void getSectionNameIndex(const Elf_Sym *Symbol, const Elf_Sym *FirstSym,
292 StringRef &SectionName,
293 unsigned &SectionIndex) const;
James Hendersone50d9cb2019-01-17 15:34:12 +0000294 std::string getStaticSymbolName(uint32_t Index) const;
Yuanfang Chenabbc3ff2019-07-18 17:04:28 +0000295 std::string getDynamicString(uint64_t Value) const;
Liang Zou9f4a4d32019-03-31 14:49:00 +0000296 StringRef getSymbolVersionByIndex(StringRef StrTab,
297 uint32_t VersionSymbolIndex,
Xing GUO7ffd9112019-03-28 12:51:46 +0000298 bool &IsDefault) const;
Hemant Kulkarnia11fbe12016-03-21 17:18:23 +0000299
300 void printSymbolsHelper(bool IsDynamic) const;
Simon Atanasyan8362cbe2019-05-24 12:22:53 +0000301 void printDynamicEntry(raw_ostream &OS, uint64_t Type, uint64_t Value) const;
302
George Rimar47936762016-01-16 00:49:19 +0000303 const Elf_Shdr *getDotSymtabSec() const { return DotSymtabSec; }
Michael J. Spencerae6eeae2018-06-02 16:33:01 +0000304 const Elf_Shdr *getDotCGProfileSec() const { return DotCGProfileSec; }
Peter Collingbourne3e227332018-07-17 22:17:18 +0000305 const Elf_Shdr *getDotAddrsigSec() const { return DotAddrsigSec; }
Hemant Kulkarnic030f232016-03-15 17:25:31 +0000306 ArrayRef<Elf_Word> getShndxTable() const { return ShndxTable; }
Rafael Espindolace2fbdd2016-02-17 15:38:21 +0000307 StringRef getDynamicStringTable() const { return DynamicStringTable; }
Hemant Kulkarnic030f232016-03-15 17:25:31 +0000308 const DynRegionInfo &getDynRelRegion() const { return DynRelRegion; }
309 const DynRegionInfo &getDynRelaRegion() const { return DynRelaRegion; }
Jake Ehrlich0f440d82018-06-28 21:07:34 +0000310 const DynRegionInfo &getDynRelrRegion() const { return DynRelrRegion; }
Hemant Kulkarnic030f232016-03-15 17:25:31 +0000311 const DynRegionInfo &getDynPLTRelRegion() const { return DynPLTRelRegion; }
Simon Atanasyan8362cbe2019-05-24 12:22:53 +0000312 const DynRegionInfo &getDynamicTableRegion() const { return DynamicTable; }
Hemant Kulkarni9b1b7f02016-04-11 17:15:30 +0000313 const Elf_Hash *getHashTable() const { return HashTable; }
314 const Elf_GnuHash *getGnuHashTable() const { return GnuHashTable; }
George Rimar47936762016-01-16 00:49:19 +0000315};
316
Hemant Kulkarnia11fbe12016-03-21 17:18:23 +0000317template <class ELFT>
318void ELFDumper<ELFT>::printSymbolsHelper(bool IsDynamic) const {
319 StringRef StrTable, SymtabName;
320 size_t Entries = 0;
321 Elf_Sym_Range Syms(nullptr, nullptr);
Luke Cheesemanf57d7d82018-12-18 10:37:42 +0000322 const ELFFile<ELFT> *Obj = ObjF->getELFFile();
Hemant Kulkarnia11fbe12016-03-21 17:18:23 +0000323 if (IsDynamic) {
324 StrTable = DynamicStringTable;
325 Syms = dynamic_symbols();
326 SymtabName = DynSymtabName;
327 if (DynSymRegion.Addr)
328 Entries = DynSymRegion.Size / DynSymRegion.EntSize;
329 } else {
330 if (!DotSymtabSec)
331 return;
332 StrTable = unwrapOrError(Obj->getStringTableForSymtab(*DotSymtabSec));
Rafael Espindola9ea68342016-11-03 13:43:30 +0000333 Syms = unwrapOrError(Obj->symbols(DotSymtabSec));
Hemant Kulkarnia11fbe12016-03-21 17:18:23 +0000334 SymtabName = unwrapOrError(Obj->getSectionName(DotSymtabSec));
335 Entries = DotSymtabSec->getEntityCount();
336 }
337 if (Syms.begin() == Syms.end())
338 return;
339 ELFDumperStyle->printSymtabMessage(Obj, SymtabName, Entries);
340 for (const auto &Sym : Syms)
341 ELFDumperStyle->printSymbol(Obj, &Sym, Syms.begin(), StrTable, IsDynamic);
342}
343
Simon Atanasyan62d32592017-12-21 10:26:02 +0000344template <class ELFT> class MipsGOTParser;
345
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +0000346template <typename ELFT> class DumpStyle {
347public:
Rui Ueyama478d6352018-01-12 02:28:31 +0000348 using Elf_Shdr = typename ELFT::Shdr;
349 using Elf_Sym = typename ELFT::Sym;
Hemant Kulkarnia11fbe12016-03-21 17:18:23 +0000350
Hemant Kulkarnic030f232016-03-15 17:25:31 +0000351 DumpStyle(ELFDumper<ELFT> *Dumper) : Dumper(Dumper) {}
Eugene Zelenko416e0592017-06-09 21:41:54 +0000352 virtual ~DumpStyle() = default;
353
Hemant Kulkarnia11fbe12016-03-21 17:18:23 +0000354 virtual void printFileHeaders(const ELFFile<ELFT> *Obj) = 0;
Hemant Kulkarni206ba842016-03-09 19:16:13 +0000355 virtual void printGroupSections(const ELFFile<ELFT> *Obj) = 0;
Hemant Kulkarnic030f232016-03-15 17:25:31 +0000356 virtual void printRelocations(const ELFFile<ELFT> *Obj) = 0;
Jordan Rupprechtdbf552c2018-11-12 18:02:38 +0000357 virtual void printSectionHeaders(const ELFFile<ELFT> *Obj) = 0;
James Henderson21ed8682019-01-23 16:15:39 +0000358 virtual void printSymbols(const ELFFile<ELFT> *Obj, bool PrintSymbols,
359 bool PrintDynamicSymbols) = 0;
James Henderson5fc812f2019-01-22 09:35:35 +0000360 virtual void printHashSymbols(const ELFFile<ELFT> *Obj) {}
Simon Atanasyan8362cbe2019-05-24 12:22:53 +0000361 virtual void printDynamic(const ELFFile<ELFT> *Obj) {}
Hemant Kulkarnic030f232016-03-15 17:25:31 +0000362 virtual void printDynamicRelocations(const ELFFile<ELFT> *Obj) = 0;
James Henderson5fc812f2019-01-22 09:35:35 +0000363 virtual void printSymtabMessage(const ELFFile<ELFT> *Obj, StringRef Name,
Eugene Zelenko416e0592017-06-09 21:41:54 +0000364 size_t Offset) {}
Hemant Kulkarnia11fbe12016-03-21 17:18:23 +0000365 virtual void printSymbol(const ELFFile<ELFT> *Obj, const Elf_Sym *Symbol,
366 const Elf_Sym *FirstSym, StringRef StrTable,
367 bool IsDynamic) = 0;
Matt Davis50ca8ed2019-02-01 18:51:10 +0000368 virtual void printProgramHeaders(const ELFFile<ELFT> *Obj,
369 bool PrintProgramHeaders,
370 cl::boolOrDefault PrintSectionMapping) = 0;
Xing GUOea16be12019-03-25 11:02:49 +0000371 virtual void printVersionSymbolSection(const ELFFile<ELFT> *Obj,
372 const Elf_Shdr *Sec) = 0;
373 virtual void printVersionDefinitionSection(const ELFFile<ELFT> *Obj,
374 const Elf_Shdr *Sec) = 0;
375 virtual void printVersionDependencySection(const ELFFile<ELFT> *Obj,
376 const Elf_Shdr *Sec) = 0;
Hemant Kulkarni9b1b7f02016-04-11 17:15:30 +0000377 virtual void printHashHistogram(const ELFFile<ELFT> *Obj) = 0;
Michael J. Spencerae6eeae2018-06-02 16:33:01 +0000378 virtual void printCGProfile(const ELFFile<ELFT> *Obj) = 0;
Peter Collingbourne3e227332018-07-17 22:17:18 +0000379 virtual void printAddrsig(const ELFFile<ELFT> *Obj) = 0;
Saleem Abdulrasool6a405442016-08-30 18:52:02 +0000380 virtual void printNotes(const ELFFile<ELFT> *Obj) = 0;
Saleem Abdulrasoolb36fbbc2018-01-30 16:29:29 +0000381 virtual void printELFLinkerOptions(const ELFFile<ELFT> *Obj) = 0;
Simon Atanasyan62d32592017-12-21 10:26:02 +0000382 virtual void printMipsGOT(const MipsGOTParser<ELFT> &Parser) = 0;
383 virtual void printMipsPLT(const MipsGOTParser<ELFT> &Parser) = 0;
Hemant Kulkarnic030f232016-03-15 17:25:31 +0000384 const ELFDumper<ELFT> *dumper() const { return Dumper; }
Eugene Zelenko416e0592017-06-09 21:41:54 +0000385
Hemant Kulkarnic030f232016-03-15 17:25:31 +0000386private:
387 const ELFDumper<ELFT> *Dumper;
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +0000388};
389
390template <typename ELFT> class GNUStyle : public DumpStyle<ELFT> {
Jordan Rupprecht565f1e22019-06-12 20:16:22 +0000391 formatted_raw_ostream &OS;
Eugene Zelenko416e0592017-06-09 21:41:54 +0000392
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +0000393public:
Hemant Kulkarni206ba842016-03-09 19:16:13 +0000394 TYPEDEF_ELF_TYPES(ELFT)
Eugene Zelenko416e0592017-06-09 21:41:54 +0000395
Zachary Turner88bb1632016-05-03 00:28:04 +0000396 GNUStyle(ScopedPrinter &W, ELFDumper<ELFT> *Dumper)
Jordan Rupprecht565f1e22019-06-12 20:16:22 +0000397 : DumpStyle<ELFT>(Dumper),
398 OS(static_cast<formatted_raw_ostream&>(W.getOStream())) {
399 assert (&W.getOStream() == &llvm::fouts());
400 }
Eugene Zelenko416e0592017-06-09 21:41:54 +0000401
Hemant Kulkarnic030f232016-03-15 17:25:31 +0000402 void printFileHeaders(const ELFO *Obj) override;
Hemant Kulkarni206ba842016-03-09 19:16:13 +0000403 void printGroupSections(const ELFFile<ELFT> *Obj) override;
Hemant Kulkarnic030f232016-03-15 17:25:31 +0000404 void printRelocations(const ELFO *Obj) override;
Jordan Rupprechtdbf552c2018-11-12 18:02:38 +0000405 void printSectionHeaders(const ELFO *Obj) override;
James Henderson21ed8682019-01-23 16:15:39 +0000406 void printSymbols(const ELFO *Obj, bool PrintSymbols,
407 bool PrintDynamicSymbols) override;
James Henderson5fc812f2019-01-22 09:35:35 +0000408 void printHashSymbols(const ELFO *Obj) override;
Simon Atanasyan8362cbe2019-05-24 12:22:53 +0000409 void printDynamic(const ELFFile<ELFT> *Obj) override;
Hemant Kulkarnic030f232016-03-15 17:25:31 +0000410 void printDynamicRelocations(const ELFO *Obj) override;
Eugene Zelenko416e0592017-06-09 21:41:54 +0000411 void printSymtabMessage(const ELFO *Obj, StringRef Name,
412 size_t Offset) override;
Matt Davis50ca8ed2019-02-01 18:51:10 +0000413 void printProgramHeaders(const ELFO *Obj, bool PrintProgramHeaders,
414 cl::boolOrDefault PrintSectionMapping) override;
Xing GUOea16be12019-03-25 11:02:49 +0000415 void printVersionSymbolSection(const ELFFile<ELFT> *Obj,
416 const Elf_Shdr *Sec) override;
417 void printVersionDefinitionSection(const ELFFile<ELFT> *Obj,
418 const Elf_Shdr *Sec) override;
419 void printVersionDependencySection(const ELFFile<ELFT> *Obj,
420 const Elf_Shdr *Sec) override;
Hemant Kulkarni9b1b7f02016-04-11 17:15:30 +0000421 void printHashHistogram(const ELFFile<ELFT> *Obj) override;
Michael J. Spencerae6eeae2018-06-02 16:33:01 +0000422 void printCGProfile(const ELFFile<ELFT> *Obj) override;
Peter Collingbourne3e227332018-07-17 22:17:18 +0000423 void printAddrsig(const ELFFile<ELFT> *Obj) override;
Saleem Abdulrasool6a405442016-08-30 18:52:02 +0000424 void printNotes(const ELFFile<ELFT> *Obj) override;
Saleem Abdulrasoolb36fbbc2018-01-30 16:29:29 +0000425 void printELFLinkerOptions(const ELFFile<ELFT> *Obj) override;
Simon Atanasyan62d32592017-12-21 10:26:02 +0000426 void printMipsGOT(const MipsGOTParser<ELFT> &Parser) override;
427 void printMipsPLT(const MipsGOTParser<ELFT> &Parser) override;
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +0000428
429private:
Hemant Kulkarnic030f232016-03-15 17:25:31 +0000430 struct Field {
George Rimar4b4899b2019-01-30 14:08:55 +0000431 std::string Str;
Hemant Kulkarnic030f232016-03-15 17:25:31 +0000432 unsigned Column;
Eugene Zelenko416e0592017-06-09 21:41:54 +0000433
Hemant Kulkarnic030f232016-03-15 17:25:31 +0000434 Field(StringRef S, unsigned Col) : Str(S), Column(Col) {}
George Rimar4b4899b2019-01-30 14:08:55 +0000435 Field(unsigned Col) : Column(Col) {}
Hemant Kulkarnic030f232016-03-15 17:25:31 +0000436 };
437
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +0000438 template <typename T, typename TEnum>
439 std::string printEnum(T Value, ArrayRef<EnumEntry<TEnum>> EnumValues) {
440 for (const auto &EnumItem : EnumValues)
441 if (EnumItem.Value == Value)
442 return EnumItem.AltName;
Hemant Kulkarnic030f232016-03-15 17:25:31 +0000443 return to_hexString(Value, false);
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +0000444 }
Hemant Kulkarnia11fbe12016-03-21 17:18:23 +0000445
Simon Atanasyan19932542018-10-25 05:39:27 +0000446 template <typename T, typename TEnum>
447 std::string printFlags(T Value, ArrayRef<EnumEntry<TEnum>> EnumValues,
448 TEnum EnumMask1 = {}, TEnum EnumMask2 = {},
449 TEnum EnumMask3 = {}) {
450 std::string Str;
451 for (const auto &Flag : EnumValues) {
452 if (Flag.Value == 0)
453 continue;
454
455 TEnum EnumMask{};
456 if (Flag.Value & EnumMask1)
457 EnumMask = EnumMask1;
458 else if (Flag.Value & EnumMask2)
459 EnumMask = EnumMask2;
460 else if (Flag.Value & EnumMask3)
461 EnumMask = EnumMask3;
462 bool IsEnum = (Flag.Value & EnumMask) != 0;
463 if ((!IsEnum && (Value & Flag.Value) == Flag.Value) ||
464 (IsEnum && (Value & EnumMask) == Flag.Value)) {
465 if (!Str.empty())
466 Str += ", ";
467 Str += Flag.AltName;
468 }
469 }
470 return Str;
471 }
472
Hemant Kulkarnic030f232016-03-15 17:25:31 +0000473 formatted_raw_ostream &printField(struct Field F) {
474 if (F.Column != 0)
475 OS.PadToColumn(F.Column);
476 OS << F.Str;
477 OS.flush();
478 return OS;
479 }
Hemant Kulkarnia6ee9fd2016-11-23 18:04:23 +0000480 void printHashedSymbol(const ELFO *Obj, const Elf_Sym *FirstSym, uint32_t Sym,
481 StringRef StrTable, uint32_t Bucket);
Jake Ehrlich0f440d82018-06-28 21:07:34 +0000482 void printRelocHeader(unsigned SType);
Hemant Kulkarnic030f232016-03-15 17:25:31 +0000483 void printRelocation(const ELFO *Obj, const Elf_Shdr *SymTab,
484 const Elf_Rela &R, bool IsRela);
James Henderson814ab372019-03-29 11:47:19 +0000485 void printRelocation(const ELFO *Obj, const Elf_Sym *Sym,
486 StringRef SymbolName, const Elf_Rela &R, bool IsRela);
Hemant Kulkarnia11fbe12016-03-21 17:18:23 +0000487 void printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, const Elf_Sym *First,
488 StringRef StrTable, bool IsDynamic) override;
489 std::string getSymbolSectionNdx(const ELFO *Obj, const Elf_Sym *Symbol,
490 const Elf_Sym *FirstSym);
Hemant Kulkarnia79c7982016-03-29 02:41:49 +0000491 void printDynamicRelocation(const ELFO *Obj, Elf_Rela R, bool IsRela);
Hemant Kulkarni966b3ac2016-03-25 16:04:48 +0000492 bool checkTLSSections(const Elf_Phdr &Phdr, const Elf_Shdr &Sec);
493 bool checkoffsets(const Elf_Phdr &Phdr, const Elf_Shdr &Sec);
494 bool checkVMA(const Elf_Phdr &Phdr, const Elf_Shdr &Sec);
495 bool checkPTDynamic(const Elf_Phdr &Phdr, const Elf_Shdr &Sec);
Matt Davis50ca8ed2019-02-01 18:51:10 +0000496 void printProgramHeaders(const ELFO *Obj);
497 void printSectionMapping(const ELFO *Obj);
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +0000498};
499
500template <typename ELFT> class LLVMStyle : public DumpStyle<ELFT> {
501public:
Hemant Kulkarni206ba842016-03-09 19:16:13 +0000502 TYPEDEF_ELF_TYPES(ELFT)
Eugene Zelenko416e0592017-06-09 21:41:54 +0000503
Zachary Turner88bb1632016-05-03 00:28:04 +0000504 LLVMStyle(ScopedPrinter &W, ELFDumper<ELFT> *Dumper)
Hemant Kulkarnic030f232016-03-15 17:25:31 +0000505 : DumpStyle<ELFT>(Dumper), W(W) {}
506
507 void printFileHeaders(const ELFO *Obj) override;
Hemant Kulkarni206ba842016-03-09 19:16:13 +0000508 void printGroupSections(const ELFFile<ELFT> *Obj) override;
Hemant Kulkarnic030f232016-03-15 17:25:31 +0000509 void printRelocations(const ELFO *Obj) override;
510 void printRelocations(const Elf_Shdr *Sec, const ELFO *Obj);
Jordan Rupprechtdbf552c2018-11-12 18:02:38 +0000511 void printSectionHeaders(const ELFO *Obj) override;
James Henderson21ed8682019-01-23 16:15:39 +0000512 void printSymbols(const ELFO *Obj, bool PrintSymbols,
513 bool PrintDynamicSymbols) override;
Simon Atanasyan8362cbe2019-05-24 12:22:53 +0000514 void printDynamic(const ELFFile<ELFT> *Obj) override;
Hemant Kulkarnic030f232016-03-15 17:25:31 +0000515 void printDynamicRelocations(const ELFO *Obj) override;
Matt Davis50ca8ed2019-02-01 18:51:10 +0000516 void printProgramHeaders(const ELFO *Obj, bool PrintProgramHeaders,
517 cl::boolOrDefault PrintSectionMapping) override;
Xing GUOea16be12019-03-25 11:02:49 +0000518 void printVersionSymbolSection(const ELFFile<ELFT> *Obj,
519 const Elf_Shdr *Sec) override;
520 void printVersionDefinitionSection(const ELFFile<ELFT> *Obj,
521 const Elf_Shdr *Sec) override;
522 void printVersionDependencySection(const ELFFile<ELFT> *Obj,
523 const Elf_Shdr *Sec) override;
Hemant Kulkarni9b1b7f02016-04-11 17:15:30 +0000524 void printHashHistogram(const ELFFile<ELFT> *Obj) override;
Michael J. Spencerae6eeae2018-06-02 16:33:01 +0000525 void printCGProfile(const ELFFile<ELFT> *Obj) override;
Peter Collingbourne3e227332018-07-17 22:17:18 +0000526 void printAddrsig(const ELFFile<ELFT> *Obj) override;
Saleem Abdulrasool6a405442016-08-30 18:52:02 +0000527 void printNotes(const ELFFile<ELFT> *Obj) override;
Saleem Abdulrasoolb36fbbc2018-01-30 16:29:29 +0000528 void printELFLinkerOptions(const ELFFile<ELFT> *Obj) override;
Simon Atanasyan62d32592017-12-21 10:26:02 +0000529 void printMipsGOT(const MipsGOTParser<ELFT> &Parser) override;
530 void printMipsPLT(const MipsGOTParser<ELFT> &Parser) override;
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +0000531
532private:
Hemant Kulkarnic030f232016-03-15 17:25:31 +0000533 void printRelocation(const ELFO *Obj, Elf_Rela Rel, const Elf_Shdr *SymTab);
Hemant Kulkarnic030f232016-03-15 17:25:31 +0000534 void printDynamicRelocation(const ELFO *Obj, Elf_Rela Rel);
James Henderson21ed8682019-01-23 16:15:39 +0000535 void printSymbols(const ELFO *Obj);
536 void printDynamicSymbols(const ELFO *Obj);
Hemant Kulkarnia11fbe12016-03-21 17:18:23 +0000537 void printSymbol(const ELFO *Obj, const Elf_Sym *Symbol, const Elf_Sym *First,
538 StringRef StrTable, bool IsDynamic) override;
Matt Davis50ca8ed2019-02-01 18:51:10 +0000539 void printProgramHeaders(const ELFO *Obj);
540 void printSectionMapping(const ELFO *Obj) {}
Eugene Zelenko416e0592017-06-09 21:41:54 +0000541
Zachary Turner88bb1632016-05-03 00:28:04 +0000542 ScopedPrinter &W;
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +0000543};
544
Eugene Zelenko416e0592017-06-09 21:41:54 +0000545} // end anonymous namespace
George Rimar47936762016-01-16 00:49:19 +0000546
547namespace llvm {
548
549template <class ELFT>
Luke Cheesemanf57d7d82018-12-18 10:37:42 +0000550static std::error_code createELFDumper(const ELFObjectFile<ELFT> *Obj,
Zachary Turner88bb1632016-05-03 00:28:04 +0000551 ScopedPrinter &Writer,
George Rimar47936762016-01-16 00:49:19 +0000552 std::unique_ptr<ObjDumper> &Result) {
553 Result.reset(new ELFDumper<ELFT>(Obj, Writer));
554 return readobj_error::success;
555}
556
557std::error_code createELFDumper(const object::ObjectFile *Obj,
Zachary Turner88bb1632016-05-03 00:28:04 +0000558 ScopedPrinter &Writer,
George Rimar47936762016-01-16 00:49:19 +0000559 std::unique_ptr<ObjDumper> &Result) {
560 // Little-endian 32-bit
561 if (const ELF32LEObjectFile *ELFObj = dyn_cast<ELF32LEObjectFile>(Obj))
Luke Cheesemanf57d7d82018-12-18 10:37:42 +0000562 return createELFDumper(ELFObj, Writer, Result);
George Rimar47936762016-01-16 00:49:19 +0000563
564 // Big-endian 32-bit
565 if (const ELF32BEObjectFile *ELFObj = dyn_cast<ELF32BEObjectFile>(Obj))
Luke Cheesemanf57d7d82018-12-18 10:37:42 +0000566 return createELFDumper(ELFObj, Writer, Result);
George Rimar47936762016-01-16 00:49:19 +0000567
568 // Little-endian 64-bit
569 if (const ELF64LEObjectFile *ELFObj = dyn_cast<ELF64LEObjectFile>(Obj))
Luke Cheesemanf57d7d82018-12-18 10:37:42 +0000570 return createELFDumper(ELFObj, Writer, Result);
George Rimar47936762016-01-16 00:49:19 +0000571
572 // Big-endian 64-bit
573 if (const ELF64BEObjectFile *ELFObj = dyn_cast<ELF64BEObjectFile>(Obj))
Luke Cheesemanf57d7d82018-12-18 10:37:42 +0000574 return createELFDumper(ELFObj, Writer, Result);
George Rimar47936762016-01-16 00:49:19 +0000575
576 return readobj_error::unsupported_obj_file_format;
577}
578
Eugene Zelenko416e0592017-06-09 21:41:54 +0000579} // end namespace llvm
George Rimar47936762016-01-16 00:49:19 +0000580
581// Iterate through the versions needed section, and place each Elf_Vernaux
582// in the VersionMap according to its index.
583template <class ELFT>
Xing GUOe855e2e2019-04-12 07:09:41 +0000584void ELFDumper<ELFT>::LoadVersionNeeds(const Elf_Shdr *Sec) const {
585 unsigned VerneedSize = Sec->sh_size; // Size of section in bytes
586 unsigned VerneedEntries = Sec->sh_info; // Number of Verneed entries
587 const uint8_t *VerneedStart = reinterpret_cast<const uint8_t *>(
588 ObjF->getELFFile()->base() + Sec->sh_offset);
589 const uint8_t *VerneedEnd = VerneedStart + VerneedSize;
George Rimar47936762016-01-16 00:49:19 +0000590 // The first Verneed entry is at the start of the section.
Xing GUOe855e2e2019-04-12 07:09:41 +0000591 const uint8_t *VerneedBuf = VerneedStart;
592 for (unsigned VerneedIndex = 0; VerneedIndex < VerneedEntries;
593 ++VerneedIndex) {
594 if (VerneedBuf + sizeof(Elf_Verneed) > VerneedEnd)
George Rimar47936762016-01-16 00:49:19 +0000595 report_fatal_error("Section ended unexpectedly while scanning "
596 "version needed records.");
Xing GUOe855e2e2019-04-12 07:09:41 +0000597 const Elf_Verneed *Verneed =
598 reinterpret_cast<const Elf_Verneed *>(VerneedBuf);
599 if (Verneed->vn_version != ELF::VER_NEED_CURRENT)
George Rimar47936762016-01-16 00:49:19 +0000600 report_fatal_error("Unexpected verneed version");
601 // Iterate through the Vernaux entries
Xing GUOe855e2e2019-04-12 07:09:41 +0000602 const uint8_t *VernauxBuf = VerneedBuf + Verneed->vn_aux;
603 for (unsigned VernauxIndex = 0; VernauxIndex < Verneed->vn_cnt;
604 ++VernauxIndex) {
605 if (VernauxBuf + sizeof(Elf_Vernaux) > VerneedEnd)
George Rimar47936762016-01-16 00:49:19 +0000606 report_fatal_error("Section ended unexpected while scanning auxiliary "
607 "version needed records.");
Xing GUOe855e2e2019-04-12 07:09:41 +0000608 const Elf_Vernaux *Vernaux =
609 reinterpret_cast<const Elf_Vernaux *>(VernauxBuf);
610 size_t Index = Vernaux->vna_other & ELF::VERSYM_VERSION;
611 if (Index >= VersionMap.size())
612 VersionMap.resize(Index + 1);
613 VersionMap[Index] = VersionMapEntry(Vernaux);
614 VernauxBuf += Vernaux->vna_next;
George Rimar47936762016-01-16 00:49:19 +0000615 }
Xing GUOe855e2e2019-04-12 07:09:41 +0000616 VerneedBuf += Verneed->vn_next;
George Rimar47936762016-01-16 00:49:19 +0000617 }
618}
619
620// Iterate through the version definitions, and place each Elf_Verdef
621// in the VersionMap according to its index.
622template <class ELFT>
Xing GUOe855e2e2019-04-12 07:09:41 +0000623void ELFDumper<ELFT>::LoadVersionDefs(const Elf_Shdr *Sec) const {
624 unsigned VerdefSize = Sec->sh_size; // Size of section in bytes
625 unsigned VerdefEntries = Sec->sh_info; // Number of Verdef entries
626 const uint8_t *VerdefStart = reinterpret_cast<const uint8_t *>(
627 ObjF->getELFFile()->base() + Sec->sh_offset);
628 const uint8_t *VerdefEnd = VerdefStart + VerdefSize;
George Rimar47936762016-01-16 00:49:19 +0000629 // The first Verdef entry is at the start of the section.
Xing GUOe855e2e2019-04-12 07:09:41 +0000630 const uint8_t *VerdefBuf = VerdefStart;
631 for (unsigned VerdefIndex = 0; VerdefIndex < VerdefEntries; ++VerdefIndex) {
632 if (VerdefBuf + sizeof(Elf_Verdef) > VerdefEnd)
George Rimar47936762016-01-16 00:49:19 +0000633 report_fatal_error("Section ended unexpectedly while scanning "
634 "version definitions.");
Xing GUOe855e2e2019-04-12 07:09:41 +0000635 const Elf_Verdef *Verdef = reinterpret_cast<const Elf_Verdef *>(VerdefBuf);
636 if (Verdef->vd_version != ELF::VER_DEF_CURRENT)
George Rimar47936762016-01-16 00:49:19 +0000637 report_fatal_error("Unexpected verdef version");
Xing GUOe855e2e2019-04-12 07:09:41 +0000638 size_t Index = Verdef->vd_ndx & ELF::VERSYM_VERSION;
639 if (Index >= VersionMap.size())
640 VersionMap.resize(Index + 1);
641 VersionMap[Index] = VersionMapEntry(Verdef);
642 VerdefBuf += Verdef->vd_next;
George Rimar47936762016-01-16 00:49:19 +0000643 }
644}
645
Hemant Kulkarnic030f232016-03-15 17:25:31 +0000646template <class ELFT> void ELFDumper<ELFT>::LoadVersionMap() const {
George Rimar47936762016-01-16 00:49:19 +0000647 // If there is no dynamic symtab or version table, there is nothing to do.
Xing GUO09a77fe2019-03-29 01:26:36 +0000648 if (!DynSymRegion.Addr || !SymbolVersionSection)
George Rimar47936762016-01-16 00:49:19 +0000649 return;
650
651 // Has the VersionMap already been loaded?
Jordan Rupprecht16a0de22018-12-20 00:57:06 +0000652 if (!VersionMap.empty())
George Rimar47936762016-01-16 00:49:19 +0000653 return;
654
655 // The first two version indexes are reserved.
656 // Index 0 is LOCAL, index 1 is GLOBAL.
657 VersionMap.push_back(VersionMapEntry());
658 VersionMap.push_back(VersionMapEntry());
659
Xing GUO09a77fe2019-03-29 01:26:36 +0000660 if (SymbolVersionDefSection)
661 LoadVersionDefs(SymbolVersionDefSection);
George Rimar47936762016-01-16 00:49:19 +0000662
Xing GUO09a77fe2019-03-29 01:26:36 +0000663 if (SymbolVersionNeedSection)
664 LoadVersionNeeds(SymbolVersionNeedSection);
George Rimar47936762016-01-16 00:49:19 +0000665}
666
George Rimar47936762016-01-16 00:49:19 +0000667template <typename ELFT>
668StringRef ELFDumper<ELFT>::getSymbolVersion(StringRef StrTab,
Xing GUO137315e2019-03-28 12:51:35 +0000669 const Elf_Sym *Sym,
Hemant Kulkarnic030f232016-03-15 17:25:31 +0000670 bool &IsDefault) const {
George Rimar47936762016-01-16 00:49:19 +0000671 // This is a dynamic symbol. Look in the GNU symbol version table.
Xing GUO09a77fe2019-03-29 01:26:36 +0000672 if (!SymbolVersionSection) {
George Rimar47936762016-01-16 00:49:19 +0000673 // No version table.
674 IsDefault = false;
Xing GUO12632c72019-03-28 12:51:56 +0000675 return "";
George Rimar47936762016-01-16 00:49:19 +0000676 }
677
678 // Determine the position in the symbol table of this entry.
Xing GUO137315e2019-03-28 12:51:35 +0000679 size_t EntryIndex = (reinterpret_cast<uintptr_t>(Sym) -
George Rimarec895f12019-05-16 06:22:51 +0000680 reinterpret_cast<uintptr_t>(DynSymRegion.Addr)) /
681 sizeof(Elf_Sym);
George Rimar47936762016-01-16 00:49:19 +0000682
Xing GUO7ffd9112019-03-28 12:51:46 +0000683 // Get the corresponding version index entry.
Xing GUO137315e2019-03-28 12:51:35 +0000684 const Elf_Versym *Versym =
685 unwrapOrError(ObjF->getELFFile()->template getEntry<Elf_Versym>(
Xing GUO09a77fe2019-03-29 01:26:36 +0000686 SymbolVersionSection, EntryIndex));
Xing GUO7ffd9112019-03-28 12:51:46 +0000687 return this->getSymbolVersionByIndex(StrTab, Versym->vs_index, IsDefault);
George Rimar47936762016-01-16 00:49:19 +0000688}
689
James Hendersone50d9cb2019-01-17 15:34:12 +0000690static std::string maybeDemangle(StringRef Name) {
691 return opts::Demangle ? demangle(Name) : Name.str();
692}
693
George Rimar47936762016-01-16 00:49:19 +0000694template <typename ELFT>
James Hendersone50d9cb2019-01-17 15:34:12 +0000695std::string ELFDumper<ELFT>::getStaticSymbolName(uint32_t Index) const {
Luke Cheesemanf57d7d82018-12-18 10:37:42 +0000696 const ELFFile<ELFT> *Obj = ObjF->getELFFile();
George Rimar9e88a262019-05-14 14:22:44 +0000697 StringRef StrTable =
698 unwrapOrError(Obj->getStringTableForSymtab(*DotSymtabSec));
Michael J. Spencerae6eeae2018-06-02 16:33:01 +0000699 Elf_Sym_Range Syms = unwrapOrError(Obj->symbols(DotSymtabSec));
700 if (Index >= Syms.size())
701 reportError("Invalid symbol index");
702 const Elf_Sym *Sym = &Syms[Index];
James Hendersone50d9cb2019-01-17 15:34:12 +0000703 return maybeDemangle(unwrapOrError(Sym->getName(StrTable)));
Michael J. Spencerae6eeae2018-06-02 16:33:01 +0000704}
705
706template <typename ELFT>
George Rimar9e88a262019-05-14 14:22:44 +0000707StringRef ELFDumper<ELFT>::getSymbolVersionByIndex(StringRef StrTab,
708 uint32_t SymbolVersionIndex,
709 bool &IsDefault) const {
Xing GUO137315e2019-03-28 12:51:35 +0000710 size_t VersionIndex = SymbolVersionIndex & VERSYM_VERSION;
711
712 // Special markers for unversioned symbols.
George Rimar9e88a262019-05-14 14:22:44 +0000713 if (VersionIndex == VER_NDX_LOCAL || VersionIndex == VER_NDX_GLOBAL) {
Xing GUO137315e2019-03-28 12:51:35 +0000714 IsDefault = false;
Xing GUO12632c72019-03-28 12:51:56 +0000715 return "";
Xing GUO137315e2019-03-28 12:51:35 +0000716 }
717
Xing GUO7ffd9112019-03-28 12:51:46 +0000718 // Lookup this symbol in the version table.
Xing GUO137315e2019-03-28 12:51:35 +0000719 LoadVersionMap();
720 if (VersionIndex >= VersionMap.size() || VersionMap[VersionIndex].isNull())
721 reportError("Invalid version entry");
722 const VersionMapEntry &Entry = VersionMap[VersionIndex];
723
Xing GUO7ffd9112019-03-28 12:51:46 +0000724 // Get the version name string.
Xing GUO137315e2019-03-28 12:51:35 +0000725 size_t NameOffset;
726 if (Entry.isVerdef()) {
727 // The first Verdaux entry holds the name.
728 NameOffset = Entry.getVerdef()->getAux()->vda_name;
729 IsDefault = !(SymbolVersionIndex & VERSYM_HIDDEN);
730 } else {
731 NameOffset = Entry.getVernaux()->vna_name;
732 IsDefault = false;
733 }
734 if (NameOffset >= StrTab.size())
735 reportError("Invalid string offset");
Xing GUO12632c72019-03-28 12:51:56 +0000736 return StrTab.data() + NameOffset;
Xing GUO137315e2019-03-28 12:51:35 +0000737}
738
739template <typename ELFT>
George Rimar47936762016-01-16 00:49:19 +0000740std::string ELFDumper<ELFT>::getFullSymbolName(const Elf_Sym *Symbol,
741 StringRef StrTable,
Hemant Kulkarnic030f232016-03-15 17:25:31 +0000742 bool IsDynamic) const {
James Hendersone50d9cb2019-01-17 15:34:12 +0000743 std::string SymbolName =
744 maybeDemangle(unwrapOrError(Symbol->getName(StrTable)));
Matt Davis8a6f11f2019-03-01 17:31:32 +0000745
746 if (SymbolName.empty() && Symbol->getType() == ELF::STT_SECTION) {
747 unsigned SectionIndex;
748 StringRef SectionName;
749 Elf_Sym_Range Syms =
750 unwrapOrError(ObjF->getELFFile()->symbols(DotSymtabSec));
751 getSectionNameIndex(Symbol, Syms.begin(), SectionName, SectionIndex);
752 return SectionName;
753 }
754
George Rimar47936762016-01-16 00:49:19 +0000755 if (!IsDynamic)
756 return SymbolName;
757
George Rimar47936762016-01-16 00:49:19 +0000758 bool IsDefault;
759 StringRef Version = getSymbolVersion(StrTable, &*Symbol, IsDefault);
James Henderson6135b0f82019-01-08 10:58:05 +0000760 if (!Version.empty()) {
James Hendersone50d9cb2019-01-17 15:34:12 +0000761 SymbolName += (IsDefault ? "@@" : "@");
762 SymbolName += Version;
James Henderson6135b0f82019-01-08 10:58:05 +0000763 }
James Hendersone50d9cb2019-01-17 15:34:12 +0000764 return SymbolName;
George Rimar47936762016-01-16 00:49:19 +0000765}
766
Rafael Espindola714c2952016-11-03 14:41:17 +0000767template <typename ELFT>
Simon Atanasyan62d32592017-12-21 10:26:02 +0000768void ELFDumper<ELFT>::getSectionNameIndex(const Elf_Sym *Symbol,
769 const Elf_Sym *FirstSym,
770 StringRef &SectionName,
771 unsigned &SectionIndex) const {
George Rimar47936762016-01-16 00:49:19 +0000772 SectionIndex = Symbol->st_shndx;
773 if (Symbol->isUndefined())
774 SectionName = "Undefined";
775 else if (Symbol->isProcessorSpecific())
776 SectionName = "Processor Specific";
777 else if (Symbol->isOSSpecific())
778 SectionName = "Operating System Specific";
779 else if (Symbol->isAbsolute())
780 SectionName = "Absolute";
781 else if (Symbol->isCommon())
782 SectionName = "Common";
783 else if (Symbol->isReserved() && SectionIndex != SHN_XINDEX)
784 SectionName = "Reserved";
785 else {
786 if (SectionIndex == SHN_XINDEX)
Rafael Espindola714c2952016-11-03 14:41:17 +0000787 SectionIndex = unwrapOrError(object::getExtendedSymbolTableIndex<ELFT>(
788 Symbol, FirstSym, ShndxTable));
Luke Cheesemanf57d7d82018-12-18 10:37:42 +0000789 const ELFFile<ELFT> *Obj = ObjF->getELFFile();
Rafael Espindola714c2952016-11-03 14:41:17 +0000790 const typename ELFT::Shdr *Sec =
Simon Atanasyan62d32592017-12-21 10:26:02 +0000791 unwrapOrError(Obj->getSection(SectionIndex));
792 SectionName = unwrapOrError(Obj->getSectionName(Sec));
George Rimar47936762016-01-16 00:49:19 +0000793 }
794}
795
796template <class ELFO>
Simon Atanasyancb1175c2016-02-09 18:45:35 +0000797static const typename ELFO::Elf_Shdr *
798findNotEmptySectionByAddress(const ELFO *Obj, uint64_t Addr) {
Rafael Espindola25be8c82016-11-02 14:10:57 +0000799 for (const auto &Shdr : unwrapOrError(Obj->sections()))
Simon Atanasyancb1175c2016-02-09 18:45:35 +0000800 if (Shdr.sh_addr == Addr && Shdr.sh_size > 0)
George Rimar47936762016-01-16 00:49:19 +0000801 return &Shdr;
802 return nullptr;
803}
804
805template <class ELFO>
806static const typename ELFO::Elf_Shdr *findSectionByName(const ELFO &Obj,
807 StringRef Name) {
Rafael Espindola25be8c82016-11-02 14:10:57 +0000808 for (const auto &Shdr : unwrapOrError(Obj.sections())) {
Rafael Espindolaf04f1842016-02-17 16:21:49 +0000809 if (Name == unwrapOrError(Obj.getSectionName(&Shdr)))
George Rimar47936762016-01-16 00:49:19 +0000810 return &Shdr;
811 }
812 return nullptr;
813}
814
815static const EnumEntry<unsigned> ElfClass[] = {
George Rimarec895f12019-05-16 06:22:51 +0000816 {"None", "none", ELF::ELFCLASSNONE},
817 {"32-bit", "ELF32", ELF::ELFCLASS32},
818 {"64-bit", "ELF64", ELF::ELFCLASS64},
George Rimar47936762016-01-16 00:49:19 +0000819};
820
821static const EnumEntry<unsigned> ElfDataEncoding[] = {
George Rimarec895f12019-05-16 06:22:51 +0000822 {"None", "none", ELF::ELFDATANONE},
823 {"LittleEndian", "2's complement, little endian", ELF::ELFDATA2LSB},
824 {"BigEndian", "2's complement, big endian", ELF::ELFDATA2MSB},
George Rimar47936762016-01-16 00:49:19 +0000825};
826
827static const EnumEntry<unsigned> ElfObjectFileType[] = {
George Rimarec895f12019-05-16 06:22:51 +0000828 {"None", "NONE (none)", ELF::ET_NONE},
829 {"Relocatable", "REL (Relocatable file)", ELF::ET_REL},
830 {"Executable", "EXEC (Executable file)", ELF::ET_EXEC},
831 {"SharedObject", "DYN (Shared object file)", ELF::ET_DYN},
832 {"Core", "CORE (Core file)", ELF::ET_CORE},
George Rimar47936762016-01-16 00:49:19 +0000833};
834
835static const EnumEntry<unsigned> ElfOSABI[] = {
George Rimarec895f12019-05-16 06:22:51 +0000836 {"SystemV", "UNIX - System V", ELF::ELFOSABI_NONE},
837 {"HPUX", "UNIX - HP-UX", ELF::ELFOSABI_HPUX},
838 {"NetBSD", "UNIX - NetBSD", ELF::ELFOSABI_NETBSD},
839 {"GNU/Linux", "UNIX - GNU", ELF::ELFOSABI_LINUX},
840 {"GNU/Hurd", "GNU/Hurd", ELF::ELFOSABI_HURD},
841 {"Solaris", "UNIX - Solaris", ELF::ELFOSABI_SOLARIS},
842 {"AIX", "UNIX - AIX", ELF::ELFOSABI_AIX},
843 {"IRIX", "UNIX - IRIX", ELF::ELFOSABI_IRIX},
844 {"FreeBSD", "UNIX - FreeBSD", ELF::ELFOSABI_FREEBSD},
845 {"TRU64", "UNIX - TRU64", ELF::ELFOSABI_TRU64},
846 {"Modesto", "Novell - Modesto", ELF::ELFOSABI_MODESTO},
847 {"OpenBSD", "UNIX - OpenBSD", ELF::ELFOSABI_OPENBSD},
848 {"OpenVMS", "VMS - OpenVMS", ELF::ELFOSABI_OPENVMS},
849 {"NSK", "HP - Non-Stop Kernel", ELF::ELFOSABI_NSK},
850 {"AROS", "AROS", ELF::ELFOSABI_AROS},
851 {"FenixOS", "FenixOS", ELF::ELFOSABI_FENIXOS},
852 {"CloudABI", "CloudABI", ELF::ELFOSABI_CLOUDABI},
853 {"Standalone", "Standalone App", ELF::ELFOSABI_STANDALONE}
854};
George Rimar47936762016-01-16 00:49:19 +0000855
Xing GUOea16be12019-03-25 11:02:49 +0000856static const EnumEntry<unsigned> SymVersionFlags[] = {
857 {"Base", "BASE", VER_FLG_BASE},
858 {"Weak", "WEAK", VER_FLG_WEAK},
859 {"Info", "INFO", VER_FLG_INFO}};
860
Konstantin Zhuravlyov121125f2017-10-02 20:49:58 +0000861static const EnumEntry<unsigned> AMDGPUElfOSABI[] = {
George Rimarec895f12019-05-16 06:22:51 +0000862 {"AMDGPU_HSA", "AMDGPU - HSA", ELF::ELFOSABI_AMDGPU_HSA},
863 {"AMDGPU_PAL", "AMDGPU - PAL", ELF::ELFOSABI_AMDGPU_PAL},
864 {"AMDGPU_MESA3D", "AMDGPU - MESA3D", ELF::ELFOSABI_AMDGPU_MESA3D}
865};
Konstantin Zhuravlyov121125f2017-10-02 20:49:58 +0000866
867static const EnumEntry<unsigned> ARMElfOSABI[] = {
George Rimarec895f12019-05-16 06:22:51 +0000868 {"ARM", "ARM", ELF::ELFOSABI_ARM}
869};
Konstantin Zhuravlyov121125f2017-10-02 20:49:58 +0000870
871static const EnumEntry<unsigned> C6000ElfOSABI[] = {
George Rimarec895f12019-05-16 06:22:51 +0000872 {"C6000_ELFABI", "Bare-metal C6000", ELF::ELFOSABI_C6000_ELFABI},
873 {"C6000_LINUX", "Linux C6000", ELF::ELFOSABI_C6000_LINUX}
874};
Konstantin Zhuravlyov121125f2017-10-02 20:49:58 +0000875
George Rimar47936762016-01-16 00:49:19 +0000876static const EnumEntry<unsigned> ElfMachineType[] = {
George Rimarec895f12019-05-16 06:22:51 +0000877 ENUM_ENT(EM_NONE, "None"),
878 ENUM_ENT(EM_M32, "WE32100"),
879 ENUM_ENT(EM_SPARC, "Sparc"),
880 ENUM_ENT(EM_386, "Intel 80386"),
881 ENUM_ENT(EM_68K, "MC68000"),
882 ENUM_ENT(EM_88K, "MC88000"),
883 ENUM_ENT(EM_IAMCU, "EM_IAMCU"),
884 ENUM_ENT(EM_860, "Intel 80860"),
885 ENUM_ENT(EM_MIPS, "MIPS R3000"),
886 ENUM_ENT(EM_S370, "IBM System/370"),
887 ENUM_ENT(EM_MIPS_RS3_LE, "MIPS R3000 little-endian"),
888 ENUM_ENT(EM_PARISC, "HPPA"),
889 ENUM_ENT(EM_VPP500, "Fujitsu VPP500"),
890 ENUM_ENT(EM_SPARC32PLUS, "Sparc v8+"),
891 ENUM_ENT(EM_960, "Intel 80960"),
892 ENUM_ENT(EM_PPC, "PowerPC"),
893 ENUM_ENT(EM_PPC64, "PowerPC64"),
894 ENUM_ENT(EM_S390, "IBM S/390"),
895 ENUM_ENT(EM_SPU, "SPU"),
896 ENUM_ENT(EM_V800, "NEC V800 series"),
897 ENUM_ENT(EM_FR20, "Fujistsu FR20"),
898 ENUM_ENT(EM_RH32, "TRW RH-32"),
899 ENUM_ENT(EM_RCE, "Motorola RCE"),
900 ENUM_ENT(EM_ARM, "ARM"),
901 ENUM_ENT(EM_ALPHA, "EM_ALPHA"),
902 ENUM_ENT(EM_SH, "Hitachi SH"),
903 ENUM_ENT(EM_SPARCV9, "Sparc v9"),
904 ENUM_ENT(EM_TRICORE, "Siemens Tricore"),
905 ENUM_ENT(EM_ARC, "ARC"),
906 ENUM_ENT(EM_H8_300, "Hitachi H8/300"),
907 ENUM_ENT(EM_H8_300H, "Hitachi H8/300H"),
908 ENUM_ENT(EM_H8S, "Hitachi H8S"),
909 ENUM_ENT(EM_H8_500, "Hitachi H8/500"),
910 ENUM_ENT(EM_IA_64, "Intel IA-64"),
911 ENUM_ENT(EM_MIPS_X, "Stanford MIPS-X"),
912 ENUM_ENT(EM_COLDFIRE, "Motorola Coldfire"),
913 ENUM_ENT(EM_68HC12, "Motorola MC68HC12 Microcontroller"),
914 ENUM_ENT(EM_MMA, "Fujitsu Multimedia Accelerator"),
915 ENUM_ENT(EM_PCP, "Siemens PCP"),
916 ENUM_ENT(EM_NCPU, "Sony nCPU embedded RISC processor"),
917 ENUM_ENT(EM_NDR1, "Denso NDR1 microprocesspr"),
918 ENUM_ENT(EM_STARCORE, "Motorola Star*Core processor"),
919 ENUM_ENT(EM_ME16, "Toyota ME16 processor"),
920 ENUM_ENT(EM_ST100, "STMicroelectronics ST100 processor"),
921 ENUM_ENT(EM_TINYJ, "Advanced Logic Corp. TinyJ embedded processor"),
922 ENUM_ENT(EM_X86_64, "Advanced Micro Devices X86-64"),
923 ENUM_ENT(EM_PDSP, "Sony DSP processor"),
924 ENUM_ENT(EM_PDP10, "Digital Equipment Corp. PDP-10"),
925 ENUM_ENT(EM_PDP11, "Digital Equipment Corp. PDP-11"),
926 ENUM_ENT(EM_FX66, "Siemens FX66 microcontroller"),
927 ENUM_ENT(EM_ST9PLUS, "STMicroelectronics ST9+ 8/16 bit microcontroller"),
928 ENUM_ENT(EM_ST7, "STMicroelectronics ST7 8-bit microcontroller"),
929 ENUM_ENT(EM_68HC16, "Motorola MC68HC16 Microcontroller"),
930 ENUM_ENT(EM_68HC11, "Motorola MC68HC11 Microcontroller"),
931 ENUM_ENT(EM_68HC08, "Motorola MC68HC08 Microcontroller"),
932 ENUM_ENT(EM_68HC05, "Motorola MC68HC05 Microcontroller"),
933 ENUM_ENT(EM_SVX, "Silicon Graphics SVx"),
934 ENUM_ENT(EM_ST19, "STMicroelectronics ST19 8-bit microcontroller"),
935 ENUM_ENT(EM_VAX, "Digital VAX"),
936 ENUM_ENT(EM_CRIS, "Axis Communications 32-bit embedded processor"),
937 ENUM_ENT(EM_JAVELIN, "Infineon Technologies 32-bit embedded cpu"),
938 ENUM_ENT(EM_FIREPATH, "Element 14 64-bit DSP processor"),
939 ENUM_ENT(EM_ZSP, "LSI Logic's 16-bit DSP processor"),
940 ENUM_ENT(EM_MMIX, "Donald Knuth's educational 64-bit processor"),
941 ENUM_ENT(EM_HUANY, "Harvard Universitys's machine-independent object format"),
942 ENUM_ENT(EM_PRISM, "Vitesse Prism"),
943 ENUM_ENT(EM_AVR, "Atmel AVR 8-bit microcontroller"),
944 ENUM_ENT(EM_FR30, "Fujitsu FR30"),
945 ENUM_ENT(EM_D10V, "Mitsubishi D10V"),
946 ENUM_ENT(EM_D30V, "Mitsubishi D30V"),
947 ENUM_ENT(EM_V850, "NEC v850"),
948 ENUM_ENT(EM_M32R, "Renesas M32R (formerly Mitsubishi M32r)"),
949 ENUM_ENT(EM_MN10300, "Matsushita MN10300"),
950 ENUM_ENT(EM_MN10200, "Matsushita MN10200"),
951 ENUM_ENT(EM_PJ, "picoJava"),
952 ENUM_ENT(EM_OPENRISC, "OpenRISC 32-bit embedded processor"),
953 ENUM_ENT(EM_ARC_COMPACT, "EM_ARC_COMPACT"),
954 ENUM_ENT(EM_XTENSA, "Tensilica Xtensa Processor"),
955 ENUM_ENT(EM_VIDEOCORE, "Alphamosaic VideoCore processor"),
956 ENUM_ENT(EM_TMM_GPP, "Thompson Multimedia General Purpose Processor"),
957 ENUM_ENT(EM_NS32K, "National Semiconductor 32000 series"),
958 ENUM_ENT(EM_TPC, "Tenor Network TPC processor"),
959 ENUM_ENT(EM_SNP1K, "EM_SNP1K"),
960 ENUM_ENT(EM_ST200, "STMicroelectronics ST200 microcontroller"),
961 ENUM_ENT(EM_IP2K, "Ubicom IP2xxx 8-bit microcontrollers"),
962 ENUM_ENT(EM_MAX, "MAX Processor"),
963 ENUM_ENT(EM_CR, "National Semiconductor CompactRISC"),
964 ENUM_ENT(EM_F2MC16, "Fujitsu F2MC16"),
965 ENUM_ENT(EM_MSP430, "Texas Instruments msp430 microcontroller"),
966 ENUM_ENT(EM_BLACKFIN, "Analog Devices Blackfin"),
967 ENUM_ENT(EM_SE_C33, "S1C33 Family of Seiko Epson processors"),
968 ENUM_ENT(EM_SEP, "Sharp embedded microprocessor"),
969 ENUM_ENT(EM_ARCA, "Arca RISC microprocessor"),
970 ENUM_ENT(EM_UNICORE, "Unicore"),
971 ENUM_ENT(EM_EXCESS, "eXcess 16/32/64-bit configurable embedded CPU"),
972 ENUM_ENT(EM_DXP, "Icera Semiconductor Inc. Deep Execution Processor"),
973 ENUM_ENT(EM_ALTERA_NIOS2, "Altera Nios"),
974 ENUM_ENT(EM_CRX, "National Semiconductor CRX microprocessor"),
975 ENUM_ENT(EM_XGATE, "Motorola XGATE embedded processor"),
976 ENUM_ENT(EM_C166, "Infineon Technologies xc16x"),
977 ENUM_ENT(EM_M16C, "Renesas M16C"),
978 ENUM_ENT(EM_DSPIC30F, "Microchip Technology dsPIC30F Digital Signal Controller"),
979 ENUM_ENT(EM_CE, "Freescale Communication Engine RISC core"),
980 ENUM_ENT(EM_M32C, "Renesas M32C"),
981 ENUM_ENT(EM_TSK3000, "Altium TSK3000 core"),
982 ENUM_ENT(EM_RS08, "Freescale RS08 embedded processor"),
983 ENUM_ENT(EM_SHARC, "EM_SHARC"),
984 ENUM_ENT(EM_ECOG2, "Cyan Technology eCOG2 microprocessor"),
985 ENUM_ENT(EM_SCORE7, "SUNPLUS S+Core"),
986 ENUM_ENT(EM_DSP24, "New Japan Radio (NJR) 24-bit DSP Processor"),
987 ENUM_ENT(EM_VIDEOCORE3, "Broadcom VideoCore III processor"),
988 ENUM_ENT(EM_LATTICEMICO32, "Lattice Mico32"),
989 ENUM_ENT(EM_SE_C17, "Seiko Epson C17 family"),
990 ENUM_ENT(EM_TI_C6000, "Texas Instruments TMS320C6000 DSP family"),
991 ENUM_ENT(EM_TI_C2000, "Texas Instruments TMS320C2000 DSP family"),
992 ENUM_ENT(EM_TI_C5500, "Texas Instruments TMS320C55x DSP family"),
993 ENUM_ENT(EM_MMDSP_PLUS, "STMicroelectronics 64bit VLIW Data Signal Processor"),
994 ENUM_ENT(EM_CYPRESS_M8C, "Cypress M8C microprocessor"),
995 ENUM_ENT(EM_R32C, "Renesas R32C series microprocessors"),
996 ENUM_ENT(EM_TRIMEDIA, "NXP Semiconductors TriMedia architecture family"),
997 ENUM_ENT(EM_HEXAGON, "Qualcomm Hexagon"),
998 ENUM_ENT(EM_8051, "Intel 8051 and variants"),
999 ENUM_ENT(EM_STXP7X, "STMicroelectronics STxP7x family"),
1000 ENUM_ENT(EM_NDS32, "Andes Technology compact code size embedded RISC processor family"),
1001 ENUM_ENT(EM_ECOG1, "Cyan Technology eCOG1 microprocessor"),
1002 ENUM_ENT(EM_ECOG1X, "Cyan Technology eCOG1X family"),
1003 ENUM_ENT(EM_MAXQ30, "Dallas Semiconductor MAXQ30 Core microcontrollers"),
1004 ENUM_ENT(EM_XIMO16, "New Japan Radio (NJR) 16-bit DSP Processor"),
1005 ENUM_ENT(EM_MANIK, "M2000 Reconfigurable RISC Microprocessor"),
1006 ENUM_ENT(EM_CRAYNV2, "Cray Inc. NV2 vector architecture"),
1007 ENUM_ENT(EM_RX, "Renesas RX"),
1008 ENUM_ENT(EM_METAG, "Imagination Technologies Meta processor architecture"),
1009 ENUM_ENT(EM_MCST_ELBRUS, "MCST Elbrus general purpose hardware architecture"),
1010 ENUM_ENT(EM_ECOG16, "Cyan Technology eCOG16 family"),
1011 ENUM_ENT(EM_CR16, "Xilinx MicroBlaze"),
1012 ENUM_ENT(EM_ETPU, "Freescale Extended Time Processing Unit"),
1013 ENUM_ENT(EM_SLE9X, "Infineon Technologies SLE9X core"),
1014 ENUM_ENT(EM_L10M, "EM_L10M"),
1015 ENUM_ENT(EM_K10M, "EM_K10M"),
1016 ENUM_ENT(EM_AARCH64, "AArch64"),
1017 ENUM_ENT(EM_AVR32, "Atmel Corporation 32-bit microprocessor family"),
1018 ENUM_ENT(EM_STM8, "STMicroeletronics STM8 8-bit microcontroller"),
1019 ENUM_ENT(EM_TILE64, "Tilera TILE64 multicore architecture family"),
1020 ENUM_ENT(EM_TILEPRO, "Tilera TILEPro multicore architecture family"),
1021 ENUM_ENT(EM_CUDA, "NVIDIA CUDA architecture"),
1022 ENUM_ENT(EM_TILEGX, "Tilera TILE-Gx multicore architecture family"),
1023 ENUM_ENT(EM_CLOUDSHIELD, "EM_CLOUDSHIELD"),
1024 ENUM_ENT(EM_COREA_1ST, "EM_COREA_1ST"),
1025 ENUM_ENT(EM_COREA_2ND, "EM_COREA_2ND"),
1026 ENUM_ENT(EM_ARC_COMPACT2, "EM_ARC_COMPACT2"),
1027 ENUM_ENT(EM_OPEN8, "EM_OPEN8"),
1028 ENUM_ENT(EM_RL78, "Renesas RL78"),
1029 ENUM_ENT(EM_VIDEOCORE5, "Broadcom VideoCore V processor"),
1030 ENUM_ENT(EM_78KOR, "EM_78KOR"),
1031 ENUM_ENT(EM_56800EX, "EM_56800EX"),
1032 ENUM_ENT(EM_AMDGPU, "EM_AMDGPU"),
1033 ENUM_ENT(EM_RISCV, "RISC-V"),
1034 ENUM_ENT(EM_LANAI, "EM_LANAI"),
1035 ENUM_ENT(EM_BPF, "EM_BPF"),
George Rimar47936762016-01-16 00:49:19 +00001036};
1037
1038static const EnumEntry<unsigned> ElfSymbolBindings[] = {
George Rimarec895f12019-05-16 06:22:51 +00001039 {"Local", "LOCAL", ELF::STB_LOCAL},
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +00001040 {"Global", "GLOBAL", ELF::STB_GLOBAL},
George Rimarec895f12019-05-16 06:22:51 +00001041 {"Weak", "WEAK", ELF::STB_WEAK},
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +00001042 {"Unique", "UNIQUE", ELF::STB_GNU_UNIQUE}};
George Rimar47936762016-01-16 00:49:19 +00001043
Hemant Kulkarnia11fbe12016-03-21 17:18:23 +00001044static const EnumEntry<unsigned> ElfSymbolVisibilities[] = {
George Rimarec895f12019-05-16 06:22:51 +00001045 {"DEFAULT", "DEFAULT", ELF::STV_DEFAULT},
1046 {"INTERNAL", "INTERNAL", ELF::STV_INTERNAL},
1047 {"HIDDEN", "HIDDEN", ELF::STV_HIDDEN},
Hemant Kulkarnia11fbe12016-03-21 17:18:23 +00001048 {"PROTECTED", "PROTECTED", ELF::STV_PROTECTED}};
1049
George Rimar47936762016-01-16 00:49:19 +00001050static const EnumEntry<unsigned> AMDGPUSymbolTypes[] = {
George Rimarec895f12019-05-16 06:22:51 +00001051 { "AMDGPU_HSA_KERNEL", ELF::STT_AMDGPU_HSA_KERNEL }
1052};
George Rimar47936762016-01-16 00:49:19 +00001053
Hemant Kulkarniab4a46f2016-01-26 19:46:39 +00001054static const char *getGroupType(uint32_t Flag) {
1055 if (Flag & ELF::GRP_COMDAT)
1056 return "COMDAT";
1057 else
1058 return "(unknown)";
1059}
1060
George Rimar47936762016-01-16 00:49:19 +00001061static const EnumEntry<unsigned> ElfSectionFlags[] = {
George Rimarec895f12019-05-16 06:22:51 +00001062 ENUM_ENT(SHF_WRITE, "W"),
1063 ENUM_ENT(SHF_ALLOC, "A"),
1064 ENUM_ENT(SHF_EXCLUDE, "E"),
1065 ENUM_ENT(SHF_EXECINSTR, "X"),
1066 ENUM_ENT(SHF_MERGE, "M"),
1067 ENUM_ENT(SHF_STRINGS, "S"),
1068 ENUM_ENT(SHF_INFO_LINK, "I"),
1069 ENUM_ENT(SHF_LINK_ORDER, "L"),
1070 ENUM_ENT(SHF_OS_NONCONFORMING, "o"),
1071 ENUM_ENT(SHF_GROUP, "G"),
1072 ENUM_ENT(SHF_TLS, "T"),
1073 ENUM_ENT(SHF_MASKOS, "o"),
1074 ENUM_ENT(SHF_MASKPROC, "p"),
1075 ENUM_ENT_1(SHF_COMPRESSED),
George Rimarc13c59a2016-05-21 10:16:58 +00001076};
1077
1078static const EnumEntry<unsigned> ElfXCoreSectionFlags[] = {
George Rimarec895f12019-05-16 06:22:51 +00001079 LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_CP_SECTION),
1080 LLVM_READOBJ_ENUM_ENT(ELF, XCORE_SHF_DP_SECTION)
1081};
Simon Atanasyan2d0d8532016-01-20 19:15:18 +00001082
Prakhar Bahuguna52a7dd72016-12-15 07:59:08 +00001083static const EnumEntry<unsigned> ElfARMSectionFlags[] = {
George Rimarec895f12019-05-16 06:22:51 +00001084 LLVM_READOBJ_ENUM_ENT(ELF, SHF_ARM_PURECODE)
1085};
Prakhar Bahuguna52a7dd72016-12-15 07:59:08 +00001086
Simon Atanasyan2d0d8532016-01-20 19:15:18 +00001087static const EnumEntry<unsigned> ElfHexagonSectionFlags[] = {
George Rimarec895f12019-05-16 06:22:51 +00001088 LLVM_READOBJ_ENUM_ENT(ELF, SHF_HEX_GPREL)
1089};
Simon Atanasyan2d0d8532016-01-20 19:15:18 +00001090
1091static const EnumEntry<unsigned> ElfMipsSectionFlags[] = {
George Rimarec895f12019-05-16 06:22:51 +00001092 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NODUPES),
1093 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NAMES ),
1094 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_LOCAL ),
1095 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NOSTRIP),
1096 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_GPREL ),
1097 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_MERGE ),
1098 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_ADDR ),
1099 LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_STRING )
1100};
Simon Atanasyan2d0d8532016-01-20 19:15:18 +00001101
1102static const EnumEntry<unsigned> ElfX86_64SectionFlags[] = {
George Rimarec895f12019-05-16 06:22:51 +00001103 LLVM_READOBJ_ENUM_ENT(ELF, SHF_X86_64_LARGE)
1104};
Simon Atanasyan2d0d8532016-01-20 19:15:18 +00001105
Hemant Kulkarnic030f232016-03-15 17:25:31 +00001106static std::string getGNUFlags(uint64_t Flags) {
1107 std::string Str;
1108 for (auto Entry : ElfSectionFlags) {
1109 uint64_t Flag = Entry.Value & Flags;
1110 Flags &= ~Entry.Value;
1111 switch (Flag) {
1112 case ELF::SHF_WRITE:
1113 case ELF::SHF_ALLOC:
1114 case ELF::SHF_EXECINSTR:
1115 case ELF::SHF_MERGE:
1116 case ELF::SHF_STRINGS:
1117 case ELF::SHF_INFO_LINK:
1118 case ELF::SHF_LINK_ORDER:
1119 case ELF::SHF_OS_NONCONFORMING:
1120 case ELF::SHF_GROUP:
1121 case ELF::SHF_TLS:
1122 case ELF::SHF_EXCLUDE:
1123 Str += Entry.AltName;
1124 break;
1125 default:
Hemant Kulkarni04ac3d72016-05-12 19:58:52 +00001126 if (Flag & ELF::SHF_MASKOS)
Hemant Kulkarnic030f232016-03-15 17:25:31 +00001127 Str += "o";
Hemant Kulkarni04ac3d72016-05-12 19:58:52 +00001128 else if (Flag & ELF::SHF_MASKPROC)
Hemant Kulkarnic030f232016-03-15 17:25:31 +00001129 Str += "p";
1130 else if (Flag)
1131 Str += "x";
1132 }
1133 }
1134 return Str;
1135}
1136
George Rimar47936762016-01-16 00:49:19 +00001137static const char *getElfSegmentType(unsigned Arch, unsigned Type) {
1138 // Check potentially overlapped processor-specific
1139 // program header type.
1140 switch (Arch) {
George Rimar47936762016-01-16 00:49:19 +00001141 case ELF::EM_ARM:
George Rimar9e88a262019-05-14 14:22:44 +00001142 switch (Type) { LLVM_READOBJ_ENUM_CASE(ELF, PT_ARM_EXIDX); }
Ryan Prichard0c20b5b2018-10-26 23:01:54 +00001143 break;
George Rimar47936762016-01-16 00:49:19 +00001144 case ELF::EM_MIPS:
1145 case ELF::EM_MIPS_RS3_LE:
1146 switch (Type) {
George Rimar9e88a262019-05-14 14:22:44 +00001147 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_REGINFO);
George Rimarec895f12019-05-16 06:22:51 +00001148 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_RTPROC);
1149 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_OPTIONS);
1150 LLVM_READOBJ_ENUM_CASE(ELF, PT_MIPS_ABIFLAGS);
George Rimar47936762016-01-16 00:49:19 +00001151 }
Ryan Prichard0c20b5b2018-10-26 23:01:54 +00001152 break;
George Rimar47936762016-01-16 00:49:19 +00001153 }
1154
1155 switch (Type) {
George Rimarec895f12019-05-16 06:22:51 +00001156 LLVM_READOBJ_ENUM_CASE(ELF, PT_NULL );
1157 LLVM_READOBJ_ENUM_CASE(ELF, PT_LOAD );
1158 LLVM_READOBJ_ENUM_CASE(ELF, PT_DYNAMIC);
1159 LLVM_READOBJ_ENUM_CASE(ELF, PT_INTERP );
1160 LLVM_READOBJ_ENUM_CASE(ELF, PT_NOTE );
1161 LLVM_READOBJ_ENUM_CASE(ELF, PT_SHLIB );
1162 LLVM_READOBJ_ENUM_CASE(ELF, PT_PHDR );
1163 LLVM_READOBJ_ENUM_CASE(ELF, PT_TLS );
George Rimar47936762016-01-16 00:49:19 +00001164
George Rimarec895f12019-05-16 06:22:51 +00001165 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_EH_FRAME);
1166 LLVM_READOBJ_ENUM_CASE(ELF, PT_SUNW_UNWIND);
George Rimar47936762016-01-16 00:49:19 +00001167
George Rimar9e88a262019-05-14 14:22:44 +00001168 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_STACK);
1169 LLVM_READOBJ_ENUM_CASE(ELF, PT_GNU_RELRO);
George Rimarbcfcb9e2016-10-18 10:54:56 +00001170
George Rimar9e88a262019-05-14 14:22:44 +00001171 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_RANDOMIZE);
1172 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_WXNEEDED);
1173 LLVM_READOBJ_ENUM_CASE(ELF, PT_OPENBSD_BOOTDATA);
George Rimarbcfcb9e2016-10-18 10:54:56 +00001174
George Rimar9e88a262019-05-14 14:22:44 +00001175 default:
1176 return "";
George Rimar47936762016-01-16 00:49:19 +00001177 }
1178}
1179
Hemant Kulkarni966b3ac2016-03-25 16:04:48 +00001180static std::string getElfPtType(unsigned Arch, unsigned Type) {
1181 switch (Type) {
Hemant Kulkarni7d564ba2016-03-28 17:20:23 +00001182 LLVM_READOBJ_PHDR_ENUM(ELF, PT_NULL)
1183 LLVM_READOBJ_PHDR_ENUM(ELF, PT_LOAD)
1184 LLVM_READOBJ_PHDR_ENUM(ELF, PT_DYNAMIC)
1185 LLVM_READOBJ_PHDR_ENUM(ELF, PT_INTERP)
1186 LLVM_READOBJ_PHDR_ENUM(ELF, PT_NOTE)
1187 LLVM_READOBJ_PHDR_ENUM(ELF, PT_SHLIB)
1188 LLVM_READOBJ_PHDR_ENUM(ELF, PT_PHDR)
1189 LLVM_READOBJ_PHDR_ENUM(ELF, PT_TLS)
1190 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_EH_FRAME)
1191 LLVM_READOBJ_PHDR_ENUM(ELF, PT_SUNW_UNWIND)
1192 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_STACK)
1193 LLVM_READOBJ_PHDR_ENUM(ELF, PT_GNU_RELRO)
Hemant Kulkarni966b3ac2016-03-25 16:04:48 +00001194 default:
1195 // All machine specific PT_* types
1196 switch (Arch) {
Hemant Kulkarni966b3ac2016-03-25 16:04:48 +00001197 case ELF::EM_ARM:
1198 if (Type == ELF::PT_ARM_EXIDX)
1199 return "EXIDX";
Ryan Prichard0c20b5b2018-10-26 23:01:54 +00001200 break;
Hemant Kulkarni966b3ac2016-03-25 16:04:48 +00001201 case ELF::EM_MIPS:
1202 case ELF::EM_MIPS_RS3_LE:
1203 switch (Type) {
1204 case PT_MIPS_REGINFO:
1205 return "REGINFO";
1206 case PT_MIPS_RTPROC:
1207 return "RTPROC";
1208 case PT_MIPS_OPTIONS:
1209 return "OPTIONS";
1210 case PT_MIPS_ABIFLAGS:
1211 return "ABIFLAGS";
1212 }
Ryan Prichard0c20b5b2018-10-26 23:01:54 +00001213 break;
Hemant Kulkarni966b3ac2016-03-25 16:04:48 +00001214 }
1215 }
1216 return std::string("<unknown>: ") + to_string(format_hex(Type, 1));
1217}
1218
George Rimar47936762016-01-16 00:49:19 +00001219static const EnumEntry<unsigned> ElfSegmentFlags[] = {
George Rimarec895f12019-05-16 06:22:51 +00001220 LLVM_READOBJ_ENUM_ENT(ELF, PF_X),
1221 LLVM_READOBJ_ENUM_ENT(ELF, PF_W),
1222 LLVM_READOBJ_ENUM_ENT(ELF, PF_R)
1223};
George Rimar47936762016-01-16 00:49:19 +00001224
1225static const EnumEntry<unsigned> ElfHeaderMipsFlags[] = {
George Rimarec895f12019-05-16 06:22:51 +00001226 ENUM_ENT(EF_MIPS_NOREORDER, "noreorder"),
1227 ENUM_ENT(EF_MIPS_PIC, "pic"),
1228 ENUM_ENT(EF_MIPS_CPIC, "cpic"),
1229 ENUM_ENT(EF_MIPS_ABI2, "abi2"),
1230 ENUM_ENT(EF_MIPS_32BITMODE, "32bitmode"),
1231 ENUM_ENT(EF_MIPS_FP64, "fp64"),
1232 ENUM_ENT(EF_MIPS_NAN2008, "nan2008"),
1233 ENUM_ENT(EF_MIPS_ABI_O32, "o32"),
1234 ENUM_ENT(EF_MIPS_ABI_O64, "o64"),
1235 ENUM_ENT(EF_MIPS_ABI_EABI32, "eabi32"),
1236 ENUM_ENT(EF_MIPS_ABI_EABI64, "eabi64"),
1237 ENUM_ENT(EF_MIPS_MACH_3900, "3900"),
1238 ENUM_ENT(EF_MIPS_MACH_4010, "4010"),
1239 ENUM_ENT(EF_MIPS_MACH_4100, "4100"),
1240 ENUM_ENT(EF_MIPS_MACH_4650, "4650"),
1241 ENUM_ENT(EF_MIPS_MACH_4120, "4120"),
1242 ENUM_ENT(EF_MIPS_MACH_4111, "4111"),
1243 ENUM_ENT(EF_MIPS_MACH_SB1, "sb1"),
1244 ENUM_ENT(EF_MIPS_MACH_OCTEON, "octeon"),
1245 ENUM_ENT(EF_MIPS_MACH_XLR, "xlr"),
1246 ENUM_ENT(EF_MIPS_MACH_OCTEON2, "octeon2"),
1247 ENUM_ENT(EF_MIPS_MACH_OCTEON3, "octeon3"),
1248 ENUM_ENT(EF_MIPS_MACH_5400, "5400"),
1249 ENUM_ENT(EF_MIPS_MACH_5900, "5900"),
1250 ENUM_ENT(EF_MIPS_MACH_5500, "5500"),
1251 ENUM_ENT(EF_MIPS_MACH_9000, "9000"),
1252 ENUM_ENT(EF_MIPS_MACH_LS2E, "loongson-2e"),
1253 ENUM_ENT(EF_MIPS_MACH_LS2F, "loongson-2f"),
1254 ENUM_ENT(EF_MIPS_MACH_LS3A, "loongson-3a"),
1255 ENUM_ENT(EF_MIPS_MICROMIPS, "micromips"),
1256 ENUM_ENT(EF_MIPS_ARCH_ASE_M16, "mips16"),
1257 ENUM_ENT(EF_MIPS_ARCH_ASE_MDMX, "mdmx"),
1258 ENUM_ENT(EF_MIPS_ARCH_1, "mips1"),
1259 ENUM_ENT(EF_MIPS_ARCH_2, "mips2"),
1260 ENUM_ENT(EF_MIPS_ARCH_3, "mips3"),
1261 ENUM_ENT(EF_MIPS_ARCH_4, "mips4"),
1262 ENUM_ENT(EF_MIPS_ARCH_5, "mips5"),
1263 ENUM_ENT(EF_MIPS_ARCH_32, "mips32"),
1264 ENUM_ENT(EF_MIPS_ARCH_64, "mips64"),
1265 ENUM_ENT(EF_MIPS_ARCH_32R2, "mips32r2"),
1266 ENUM_ENT(EF_MIPS_ARCH_64R2, "mips64r2"),
1267 ENUM_ENT(EF_MIPS_ARCH_32R6, "mips32r6"),
1268 ENUM_ENT(EF_MIPS_ARCH_64R6, "mips64r6")
1269};
George Rimar47936762016-01-16 00:49:19 +00001270
Konstantin Zhuravlyovaa0835a2017-10-05 16:19:18 +00001271static const EnumEntry<unsigned> ElfHeaderAMDGPUFlags[] = {
George Rimarec895f12019-05-16 06:22:51 +00001272 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_NONE),
1273 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_R600),
1274 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_R630),
1275 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_RS880),
1276 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_RV670),
1277 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_RV710),
1278 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_RV730),
1279 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_RV770),
1280 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_CEDAR),
1281 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_CYPRESS),
1282 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_JUNIPER),
1283 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_REDWOOD),
1284 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_SUMO),
1285 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_BARTS),
1286 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_CAICOS),
1287 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_CAYMAN),
1288 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_R600_TURKS),
1289 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX600),
1290 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX601),
1291 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX700),
1292 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX701),
1293 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX702),
1294 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX703),
1295 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX704),
1296 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX801),
1297 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX802),
1298 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX803),
1299 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX810),
1300 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX900),
1301 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX902),
1302 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX904),
1303 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX906),
Stanislav Mekhanoshin22b2c3d2019-07-09 18:10:06 +00001304 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX908),
George Rimarec895f12019-05-16 06:22:51 +00001305 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX909),
1306 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX1010),
Stanislav Mekhanoshinc43e67b2019-06-14 00:33:31 +00001307 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX1011),
1308 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_MACH_AMDGCN_GFX1012),
George Rimarec895f12019-05-16 06:22:51 +00001309 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_XNACK),
1310 LLVM_READOBJ_ENUM_ENT(ELF, EF_AMDGPU_SRAM_ECC)
1311};
Konstantin Zhuravlyovaa0835a2017-10-05 16:19:18 +00001312
Alex Bradburybb89b2b2017-10-03 08:41:59 +00001313static const EnumEntry<unsigned> ElfHeaderRISCVFlags[] = {
George Rimarec895f12019-05-16 06:22:51 +00001314 ENUM_ENT(EF_RISCV_RVC, "RVC"),
1315 ENUM_ENT(EF_RISCV_FLOAT_ABI_SINGLE, "single-float ABI"),
1316 ENUM_ENT(EF_RISCV_FLOAT_ABI_DOUBLE, "double-float ABI"),
1317 ENUM_ENT(EF_RISCV_FLOAT_ABI_QUAD, "quad-float ABI"),
1318 ENUM_ENT(EF_RISCV_RVE, "RVE")
1319};
Alex Bradburybb89b2b2017-10-03 08:41:59 +00001320
Simon Atanasyanb7807a02016-03-24 16:10:37 +00001321static const EnumEntry<unsigned> ElfSymOtherFlags[] = {
George Rimarec895f12019-05-16 06:22:51 +00001322 LLVM_READOBJ_ENUM_ENT(ELF, STV_INTERNAL),
1323 LLVM_READOBJ_ENUM_ENT(ELF, STV_HIDDEN),
1324 LLVM_READOBJ_ENUM_ENT(ELF, STV_PROTECTED)
1325};
Simon Atanasyanb7807a02016-03-24 16:10:37 +00001326
1327static const EnumEntry<unsigned> ElfMipsSymOtherFlags[] = {
George Rimarec895f12019-05-16 06:22:51 +00001328 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_OPTIONAL),
1329 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PLT),
1330 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PIC),
1331 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_MICROMIPS)
1332};
Simon Atanasyanb7807a02016-03-24 16:10:37 +00001333
1334static const EnumEntry<unsigned> ElfMips16SymOtherFlags[] = {
George Rimarec895f12019-05-16 06:22:51 +00001335 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_OPTIONAL),
1336 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_PLT),
1337 LLVM_READOBJ_ENUM_ENT(ELF, STO_MIPS_MIPS16)
1338};
Simon Atanasyanb7807a02016-03-24 16:10:37 +00001339
Simon Atanasyan8a71b532016-05-04 05:58:57 +00001340static const char *getElfMipsOptionsOdkType(unsigned Odk) {
1341 switch (Odk) {
George Rimarec895f12019-05-16 06:22:51 +00001342 LLVM_READOBJ_ENUM_CASE(ELF, ODK_NULL);
1343 LLVM_READOBJ_ENUM_CASE(ELF, ODK_REGINFO);
1344 LLVM_READOBJ_ENUM_CASE(ELF, ODK_EXCEPTIONS);
1345 LLVM_READOBJ_ENUM_CASE(ELF, ODK_PAD);
1346 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWPATCH);
1347 LLVM_READOBJ_ENUM_CASE(ELF, ODK_FILL);
1348 LLVM_READOBJ_ENUM_CASE(ELF, ODK_TAGS);
1349 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWAND);
1350 LLVM_READOBJ_ENUM_CASE(ELF, ODK_HWOR);
1351 LLVM_READOBJ_ENUM_CASE(ELF, ODK_GP_GROUP);
1352 LLVM_READOBJ_ENUM_CASE(ELF, ODK_IDENT);
1353 LLVM_READOBJ_ENUM_CASE(ELF, ODK_PAGESIZE);
Simon Atanasyan8a71b532016-05-04 05:58:57 +00001354 default:
1355 return "Unknown";
1356 }
1357}
1358
George Rimar47936762016-01-16 00:49:19 +00001359template <typename ELFT>
George Rimar72f821d2019-05-20 15:41:48 +00001360void ELFDumper<ELFT>::loadDynamicTable(const ELFFile<ELFT> *Obj) {
George Rimar8ac7b2d2019-05-29 10:31:46 +00001361 // Try to locate the PT_DYNAMIC header.
George Rimar72f821d2019-05-20 15:41:48 +00001362 const Elf_Phdr *DynamicPhdr = nullptr;
1363 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) {
1364 if (Phdr.p_type != ELF::PT_DYNAMIC)
1365 continue;
1366 DynamicPhdr = &Phdr;
1367 break;
1368 }
1369
George Rimar72f821d2019-05-20 15:41:48 +00001370 // Try to locate the .dynamic section in the sections header table.
1371 const Elf_Shdr *DynamicSec = nullptr;
1372 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
1373 if (Sec.sh_type != ELF::SHT_DYNAMIC)
1374 continue;
1375 DynamicSec = &Sec;
1376 break;
1377 }
1378
1379 // Information in the section header has priority over the information
1380 // in a PT_DYNAMIC header.
1381 // Ignore sh_entsize and use the expected value for entry size explicitly.
1382 // This allows us to dump the dynamic sections with a broken sh_entsize
1383 // field.
George Rimar8ac7b2d2019-05-29 10:31:46 +00001384 if (DynamicSec) {
George Rimar72f821d2019-05-20 15:41:48 +00001385 DynamicTable = checkDRI({ObjF->getELFFile()->base() + DynamicSec->sh_offset,
1386 DynamicSec->sh_size, sizeof(Elf_Dyn)});
George Rimar8ac7b2d2019-05-29 10:31:46 +00001387 parseDynamicTable();
1388 }
1389
1390 // If we have a PT_DYNAMIC header, we will either check the found dynamic
1391 // section or take the dynamic table data directly from the header.
1392 if (!DynamicPhdr)
1393 return;
George Rimar72f821d2019-05-20 15:41:48 +00001394
1395 if (DynamicPhdr->p_offset + DynamicPhdr->p_filesz >
1396 ObjF->getMemoryBufferRef().getBufferSize())
1397 reportError(
1398 "PT_DYNAMIC segment offset + size exceeds the size of the file");
1399
1400 if (!DynamicSec) {
1401 DynamicTable = createDRIFrom(DynamicPhdr, sizeof(Elf_Dyn));
1402 parseDynamicTable();
1403 return;
1404 }
1405
1406 StringRef Name = unwrapOrError(Obj->getSectionName(DynamicSec));
George Rimar72f821d2019-05-20 15:41:48 +00001407 if (DynamicSec->sh_addr + DynamicSec->sh_size >
1408 DynamicPhdr->p_vaddr + DynamicPhdr->p_memsz ||
1409 DynamicSec->sh_addr < DynamicPhdr->p_vaddr)
1410 reportWarning("The SHT_DYNAMIC section '" + Name +
1411 "' is not contained within the "
1412 "PT_DYNAMIC segment");
1413
1414 if (DynamicSec->sh_addr != DynamicPhdr->p_vaddr)
1415 reportWarning("The SHT_DYNAMIC section '" + Name +
1416 "' is not at the start of "
1417 "PT_DYNAMIC segment");
George Rimar72f821d2019-05-20 15:41:48 +00001418}
1419
1420template <typename ELFT>
Luke Cheesemanf57d7d82018-12-18 10:37:42 +00001421ELFDumper<ELFT>::ELFDumper(const object::ELFObjectFile<ELFT> *ObjF,
George Rimarec895f12019-05-16 06:22:51 +00001422 ScopedPrinter &Writer)
Luke Cheesemanf57d7d82018-12-18 10:37:42 +00001423 : ObjDumper(Writer), ObjF(ObjF) {
Luke Cheesemanf57d7d82018-12-18 10:37:42 +00001424 const ELFFile<ELFT> *Obj = ObjF->getELFFile();
George Rimar47936762016-01-16 00:49:19 +00001425
Rafael Espindola25be8c82016-11-02 14:10:57 +00001426 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
Michael J. Spencer37304f12016-02-11 04:59:26 +00001427 switch (Sec.sh_type) {
Michael J. Spencer94f060c2016-02-11 04:59:32 +00001428 case ELF::SHT_SYMTAB:
Peter Collingbourne0dac4762019-05-28 20:01:25 +00001429 if (!DotSymtabSec)
1430 DotSymtabSec = &Sec;
Michael J. Spencer94f060c2016-02-11 04:59:32 +00001431 break;
1432 case ELF::SHT_DYNSYM:
Peter Collingbourne0dac4762019-05-28 20:01:25 +00001433 if (!DynSymRegion.Size) {
1434 DynSymRegion = createDRIFrom(&Sec);
1435 // This is only used (if Elf_Shdr present)for naming section in GNU
1436 // style
1437 DynSymtabName = unwrapOrError(Obj->getSectionName(&Sec));
George Rimardd4f2532019-06-10 14:23:46 +00001438
1439 if (Expected<StringRef> E = Obj->getStringTableForSymtab(Sec))
1440 DynamicStringTable = *E;
1441 else
1442 warn(E.takeError());
Peter Collingbourne0dac4762019-05-28 20:01:25 +00001443 }
Michael J. Spencer94f060c2016-02-11 04:59:32 +00001444 break;
Michael J. Spencer1c793ef2016-02-17 22:30:41 +00001445 case ELF::SHT_SYMTAB_SHNDX:
Rafael Espindolaf04f1842016-02-17 16:21:49 +00001446 ShndxTable = unwrapOrError(Obj->getSHNDXTable(Sec));
Michael J. Spencer94f060c2016-02-11 04:59:32 +00001447 break;
Michael J. Spencer37304f12016-02-11 04:59:26 +00001448 case ELF::SHT_GNU_versym:
Peter Collingbourne0dac4762019-05-28 20:01:25 +00001449 if (!SymbolVersionSection)
1450 SymbolVersionSection = &Sec;
Michael J. Spencer37304f12016-02-11 04:59:26 +00001451 break;
1452 case ELF::SHT_GNU_verdef:
Peter Collingbourne0dac4762019-05-28 20:01:25 +00001453 if (!SymbolVersionDefSection)
1454 SymbolVersionDefSection = &Sec;
Michael J. Spencer37304f12016-02-11 04:59:26 +00001455 break;
1456 case ELF::SHT_GNU_verneed:
Peter Collingbourne0dac4762019-05-28 20:01:25 +00001457 if (!SymbolVersionNeedSection)
1458 SymbolVersionNeedSection = &Sec;
Michael J. Spencer37304f12016-02-11 04:59:26 +00001459 break;
Michael J. Spencerae6eeae2018-06-02 16:33:01 +00001460 case ELF::SHT_LLVM_CALL_GRAPH_PROFILE:
Peter Collingbourne0dac4762019-05-28 20:01:25 +00001461 if (!DotCGProfileSec)
1462 DotCGProfileSec = &Sec;
Peter Collingbourne3e227332018-07-17 22:17:18 +00001463 break;
1464 case ELF::SHT_LLVM_ADDRSIG:
Peter Collingbourne0dac4762019-05-28 20:01:25 +00001465 if (!DotAddrsigSec)
1466 DotAddrsigSec = &Sec;
Peter Collingbourne3e227332018-07-17 22:17:18 +00001467 break;
Michael J. Spencer37304f12016-02-11 04:59:26 +00001468 }
1469 }
1470
George Rimar72f821d2019-05-20 15:41:48 +00001471 loadDynamicTable(Obj);
Michael J. Spencer60d82b22016-02-11 04:59:37 +00001472
1473 if (opts::Output == opts::GNU)
Hemant Kulkarnic030f232016-03-15 17:25:31 +00001474 ELFDumperStyle.reset(new GNUStyle<ELFT>(Writer, this));
Michael J. Spencer60d82b22016-02-11 04:59:37 +00001475 else
Hemant Kulkarnic030f232016-03-15 17:25:31 +00001476 ELFDumperStyle.reset(new LLVMStyle<ELFT>(Writer, this));
Michael J. Spencer60d82b22016-02-11 04:59:37 +00001477}
1478
George Rimar8ac7b2d2019-05-29 10:31:46 +00001479static const char *getTypeString(unsigned Arch, uint64_t Type) {
1480#define DYNAMIC_TAG(n, v)
1481 switch (Arch) {
Peter Smith49d72212019-06-04 11:44:33 +00001482
1483 case EM_AARCH64:
1484 switch (Type) {
1485#define AARCH64_DYNAMIC_TAG(name, value) \
1486 case DT_##name: \
1487 return #name;
1488#include "llvm/BinaryFormat/DynamicTags.def"
1489#undef AARCH64_DYNAMIC_TAG
1490 }
1491 break;
1492
George Rimar8ac7b2d2019-05-29 10:31:46 +00001493 case EM_HEXAGON:
1494 switch (Type) {
1495#define HEXAGON_DYNAMIC_TAG(name, value) \
1496 case DT_##name: \
1497 return #name;
1498#include "llvm/BinaryFormat/DynamicTags.def"
1499#undef HEXAGON_DYNAMIC_TAG
1500 }
1501 break;
1502
1503 case EM_MIPS:
1504 switch (Type) {
1505#define MIPS_DYNAMIC_TAG(name, value) \
1506 case DT_##name: \
1507 return #name;
1508#include "llvm/BinaryFormat/DynamicTags.def"
1509#undef MIPS_DYNAMIC_TAG
1510 }
1511 break;
1512
1513 case EM_PPC64:
1514 switch (Type) {
1515#define PPC64_DYNAMIC_TAG(name, value) \
1516 case DT_##name: \
1517 return #name;
1518#include "llvm/BinaryFormat/DynamicTags.def"
1519#undef PPC64_DYNAMIC_TAG
1520 }
1521 break;
1522 }
1523#undef DYNAMIC_TAG
1524 switch (Type) {
1525// Now handle all dynamic tags except the architecture specific ones
Peter Smith49d72212019-06-04 11:44:33 +00001526#define AARCH64_DYNAMIC_TAG(name, value)
George Rimar8ac7b2d2019-05-29 10:31:46 +00001527#define MIPS_DYNAMIC_TAG(name, value)
1528#define HEXAGON_DYNAMIC_TAG(name, value)
1529#define PPC64_DYNAMIC_TAG(name, value)
1530// Also ignore marker tags such as DT_HIOS (maps to DT_VERNEEDNUM), etc.
1531#define DYNAMIC_TAG_MARKER(name, value)
1532#define DYNAMIC_TAG(name, value) \
1533 case DT_##name: \
1534 return #name;
1535#include "llvm/BinaryFormat/DynamicTags.def"
1536#undef DYNAMIC_TAG
Peter Smith49d72212019-06-04 11:44:33 +00001537#undef AARCH64_DYNAMIC_TAG
George Rimar8ac7b2d2019-05-29 10:31:46 +00001538#undef MIPS_DYNAMIC_TAG
1539#undef HEXAGON_DYNAMIC_TAG
1540#undef PPC64_DYNAMIC_TAG
1541#undef DYNAMIC_TAG_MARKER
1542 default:
1543 return "unknown";
1544 }
1545}
1546
George Rimar72f821d2019-05-20 15:41:48 +00001547template <typename ELFT> void ELFDumper<ELFT>::parseDynamicTable() {
George Rimar8ac7b2d2019-05-29 10:31:46 +00001548 auto toMappedAddr = [&](uint64_t Tag, uint64_t VAddr) -> const uint8_t * {
Luke Cheesemanf57d7d82018-12-18 10:37:42 +00001549 auto MappedAddrOrError = ObjF->getELFFile()->toMappedAddr(VAddr);
George Rimar8ac7b2d2019-05-29 10:31:46 +00001550 if (!MappedAddrOrError) {
1551 reportWarning("Unable to parse DT_" +
1552 Twine(getTypeString(
1553 ObjF->getELFFile()->getHeader()->e_machine, Tag)) +
1554 ": " + llvm::toString(MappedAddrOrError.takeError()));
1555 return nullptr;
1556 }
Xing GUOfe5a6c32018-12-08 05:32:28 +00001557 return MappedAddrOrError.get();
George Rimar47936762016-01-16 00:49:19 +00001558 };
1559
1560 uint64_t SONameOffset = 0;
1561 const char *StringTableBegin = nullptr;
1562 uint64_t StringTableSize = 0;
1563 for (const Elf_Dyn &Dyn : dynamic_table()) {
1564 switch (Dyn.d_tag) {
1565 case ELF::DT_HASH:
George Rimar8ac7b2d2019-05-29 10:31:46 +00001566 HashTable = reinterpret_cast<const Elf_Hash *>(
1567 toMappedAddr(Dyn.getTag(), Dyn.getPtr()));
George Rimar47936762016-01-16 00:49:19 +00001568 break;
1569 case ELF::DT_GNU_HASH:
George Rimar8ac7b2d2019-05-29 10:31:46 +00001570 GnuHashTable = reinterpret_cast<const Elf_GnuHash *>(
1571 toMappedAddr(Dyn.getTag(), Dyn.getPtr()));
George Rimar47936762016-01-16 00:49:19 +00001572 break;
Michael J. Spencer94f060c2016-02-11 04:59:32 +00001573 case ELF::DT_STRTAB:
George Rimar8ac7b2d2019-05-29 10:31:46 +00001574 StringTableBegin = reinterpret_cast<const char *>(
1575 toMappedAddr(Dyn.getTag(), Dyn.getPtr()));
Simon Atanasyan72155c32016-01-16 22:40:09 +00001576 break;
Michael J. Spencer94f060c2016-02-11 04:59:32 +00001577 case ELF::DT_STRSZ:
1578 StringTableSize = Dyn.getVal();
Simon Atanasyan72155c32016-01-16 22:40:09 +00001579 break;
Michael J. Spencer94f060c2016-02-11 04:59:32 +00001580 case ELF::DT_SYMTAB:
George Rimar8ac7b2d2019-05-29 10:31:46 +00001581 DynSymRegion.Addr = toMappedAddr(Dyn.getTag(), Dyn.getPtr());
Rafael Espindolace2fbdd2016-02-17 15:38:21 +00001582 DynSymRegion.EntSize = sizeof(Elf_Sym);
Simon Atanasyan72155c32016-01-16 22:40:09 +00001583 break;
George Rimar47936762016-01-16 00:49:19 +00001584 case ELF::DT_RELA:
George Rimar8ac7b2d2019-05-29 10:31:46 +00001585 DynRelaRegion.Addr = toMappedAddr(Dyn.getTag(), Dyn.getPtr());
George Rimar47936762016-01-16 00:49:19 +00001586 break;
1587 case ELF::DT_RELASZ:
1588 DynRelaRegion.Size = Dyn.getVal();
1589 break;
1590 case ELF::DT_RELAENT:
1591 DynRelaRegion.EntSize = Dyn.getVal();
1592 break;
1593 case ELF::DT_SONAME:
1594 SONameOffset = Dyn.getVal();
1595 break;
Michael J. Spencer94f060c2016-02-11 04:59:32 +00001596 case ELF::DT_REL:
George Rimar8ac7b2d2019-05-29 10:31:46 +00001597 DynRelRegion.Addr = toMappedAddr(Dyn.getTag(), Dyn.getPtr());
George Rimar47936762016-01-16 00:49:19 +00001598 break;
Michael J. Spencer94f060c2016-02-11 04:59:32 +00001599 case ELF::DT_RELSZ:
1600 DynRelRegion.Size = Dyn.getVal();
George Rimar47936762016-01-16 00:49:19 +00001601 break;
Michael J. Spencer94f060c2016-02-11 04:59:32 +00001602 case ELF::DT_RELENT:
1603 DynRelRegion.EntSize = Dyn.getVal();
George Rimar47936762016-01-16 00:49:19 +00001604 break;
Jake Ehrlich0f440d82018-06-28 21:07:34 +00001605 case ELF::DT_RELR:
1606 case ELF::DT_ANDROID_RELR:
George Rimar8ac7b2d2019-05-29 10:31:46 +00001607 DynRelrRegion.Addr = toMappedAddr(Dyn.getTag(), Dyn.getPtr());
Jake Ehrlich0f440d82018-06-28 21:07:34 +00001608 break;
1609 case ELF::DT_RELRSZ:
1610 case ELF::DT_ANDROID_RELRSZ:
1611 DynRelrRegion.Size = Dyn.getVal();
1612 break;
1613 case ELF::DT_RELRENT:
1614 case ELF::DT_ANDROID_RELRENT:
1615 DynRelrRegion.EntSize = Dyn.getVal();
1616 break;
Rafael Espindola944f6552016-02-16 15:16:00 +00001617 case ELF::DT_PLTREL:
1618 if (Dyn.getVal() == DT_REL)
1619 DynPLTRelRegion.EntSize = sizeof(Elf_Rel);
1620 else if (Dyn.getVal() == DT_RELA)
1621 DynPLTRelRegion.EntSize = sizeof(Elf_Rela);
1622 else
1623 reportError(Twine("unknown DT_PLTREL value of ") +
1624 Twine((uint64_t)Dyn.getVal()));
1625 break;
1626 case ELF::DT_JMPREL:
George Rimar8ac7b2d2019-05-29 10:31:46 +00001627 DynPLTRelRegion.Addr = toMappedAddr(Dyn.getTag(), Dyn.getPtr());
Rafael Espindola944f6552016-02-16 15:16:00 +00001628 break;
1629 case ELF::DT_PLTRELSZ:
1630 DynPLTRelRegion.Size = Dyn.getVal();
1631 break;
George Rimar47936762016-01-16 00:49:19 +00001632 }
1633 }
1634 if (StringTableBegin)
1635 DynamicStringTable = StringRef(StringTableBegin, StringTableSize);
Yuanfang Chenabbc3ff2019-07-18 17:04:28 +00001636 SOName = getDynamicString(SONameOffset);
Rafael Espindola6009db62016-02-16 14:17:48 +00001637}
George Rimar47936762016-01-16 00:49:19 +00001638
Rafael Espindola6009db62016-02-16 14:17:48 +00001639template <typename ELFT>
Simon Atanasyan72155c32016-01-16 22:40:09 +00001640typename ELFDumper<ELFT>::Elf_Rel_Range ELFDumper<ELFT>::dyn_rels() const {
Rafael Espindolaaafcf752016-04-05 14:47:22 +00001641 return DynRelRegion.getAsArrayRef<Elf_Rel>();
George Rimar47936762016-01-16 00:49:19 +00001642}
1643
1644template <typename ELFT>
1645typename ELFDumper<ELFT>::Elf_Rela_Range ELFDumper<ELFT>::dyn_relas() const {
Rafael Espindolaaafcf752016-04-05 14:47:22 +00001646 return DynRelaRegion.getAsArrayRef<Elf_Rela>();
George Rimar47936762016-01-16 00:49:19 +00001647}
1648
Jake Ehrlich0f440d82018-06-28 21:07:34 +00001649template <typename ELFT>
1650typename ELFDumper<ELFT>::Elf_Relr_Range ELFDumper<ELFT>::dyn_relrs() const {
1651 return DynRelrRegion.getAsArrayRef<Elf_Relr>();
1652}
1653
George Rimar9e88a262019-05-14 14:22:44 +00001654template <class ELFT> void ELFDumper<ELFT>::printFileHeaders() {
Luke Cheesemanf57d7d82018-12-18 10:37:42 +00001655 ELFDumperStyle->printFileHeaders(ObjF->getELFFile());
George Rimar47936762016-01-16 00:49:19 +00001656}
1657
George Rimar9e88a262019-05-14 14:22:44 +00001658template <class ELFT> void ELFDumper<ELFT>::printSectionHeaders() {
Luke Cheesemanf57d7d82018-12-18 10:37:42 +00001659 ELFDumperStyle->printSectionHeaders(ObjF->getELFFile());
George Rimar47936762016-01-16 00:49:19 +00001660}
1661
George Rimar9e88a262019-05-14 14:22:44 +00001662template <class ELFT> void ELFDumper<ELFT>::printRelocations() {
Luke Cheesemanf57d7d82018-12-18 10:37:42 +00001663 ELFDumperStyle->printRelocations(ObjF->getELFFile());
George Rimar47936762016-01-16 00:49:19 +00001664}
1665
Matt Davis50ca8ed2019-02-01 18:51:10 +00001666template <class ELFT>
1667void ELFDumper<ELFT>::printProgramHeaders(
1668 bool PrintProgramHeaders, cl::boolOrDefault PrintSectionMapping) {
1669 ELFDumperStyle->printProgramHeaders(ObjF->getELFFile(), PrintProgramHeaders,
1670 PrintSectionMapping);
Hemant Kulkarni966b3ac2016-03-25 16:04:48 +00001671}
1672
Xing GUOea16be12019-03-25 11:02:49 +00001673template <typename ELFT> void ELFDumper<ELFT>::printVersionInfo() {
1674 // Dump version symbol section.
1675 ELFDumperStyle->printVersionSymbolSection(ObjF->getELFFile(),
Xing GUO09a77fe2019-03-29 01:26:36 +00001676 SymbolVersionSection);
Xing GUOea16be12019-03-25 11:02:49 +00001677
1678 // Dump version definition section.
1679 ELFDumperStyle->printVersionDefinitionSection(ObjF->getELFFile(),
Xing GUO09a77fe2019-03-29 01:26:36 +00001680 SymbolVersionDefSection);
Xing GUOea16be12019-03-25 11:02:49 +00001681
1682 // Dump version dependency section.
1683 ELFDumperStyle->printVersionDependencySection(ObjF->getELFFile(),
Xing GUO09a77fe2019-03-29 01:26:36 +00001684 SymbolVersionNeedSection);
Xing GUOea16be12019-03-25 11:02:49 +00001685}
1686
Simon Atanasyan72155c32016-01-16 22:40:09 +00001687template <class ELFT> void ELFDumper<ELFT>::printDynamicRelocations() {
Luke Cheesemanf57d7d82018-12-18 10:37:42 +00001688 ELFDumperStyle->printDynamicRelocations(ObjF->getELFFile());
George Rimar47936762016-01-16 00:49:19 +00001689}
1690
James Henderson21ed8682019-01-23 16:15:39 +00001691template <class ELFT>
1692void ELFDumper<ELFT>::printSymbols(bool PrintSymbols,
1693 bool PrintDynamicSymbols) {
1694 ELFDumperStyle->printSymbols(ObjF->getELFFile(), PrintSymbols,
1695 PrintDynamicSymbols);
George Rimar47936762016-01-16 00:49:19 +00001696}
1697
George Rimar9e88a262019-05-14 14:22:44 +00001698template <class ELFT> void ELFDumper<ELFT>::printHashSymbols() {
James Henderson5fc812f2019-01-22 09:35:35 +00001699 ELFDumperStyle->printHashSymbols(ObjF->getELFFile());
1700}
1701
Hemant Kulkarni9b1b7f02016-04-11 17:15:30 +00001702template <class ELFT> void ELFDumper<ELFT>::printHashHistogram() {
Luke Cheesemanf57d7d82018-12-18 10:37:42 +00001703 ELFDumperStyle->printHashHistogram(ObjF->getELFFile());
Hemant Kulkarni9b1b7f02016-04-11 17:15:30 +00001704}
Saleem Abdulrasool6a405442016-08-30 18:52:02 +00001705
Michael J. Spencerae6eeae2018-06-02 16:33:01 +00001706template <class ELFT> void ELFDumper<ELFT>::printCGProfile() {
Luke Cheesemanf57d7d82018-12-18 10:37:42 +00001707 ELFDumperStyle->printCGProfile(ObjF->getELFFile());
Michael J. Spencerae6eeae2018-06-02 16:33:01 +00001708}
1709
Saleem Abdulrasool6a405442016-08-30 18:52:02 +00001710template <class ELFT> void ELFDumper<ELFT>::printNotes() {
Luke Cheesemanf57d7d82018-12-18 10:37:42 +00001711 ELFDumperStyle->printNotes(ObjF->getELFFile());
Saleem Abdulrasool6a405442016-08-30 18:52:02 +00001712}
1713
Saleem Abdulrasoolb36fbbc2018-01-30 16:29:29 +00001714template <class ELFT> void ELFDumper<ELFT>::printELFLinkerOptions() {
Luke Cheesemanf57d7d82018-12-18 10:37:42 +00001715 ELFDumperStyle->printELFLinkerOptions(ObjF->getELFFile());
Saleem Abdulrasoolb36fbbc2018-01-30 16:29:29 +00001716}
1717
George Rimar9e88a262019-05-14 14:22:44 +00001718#define LLVM_READOBJ_DT_FLAG_ENT(prefix, enum) \
George Rimar47936762016-01-16 00:49:19 +00001719 { #enum, prefix##_##enum }
1720
1721static const EnumEntry<unsigned> ElfDynamicDTFlags[] = {
George Rimarec895f12019-05-16 06:22:51 +00001722 LLVM_READOBJ_DT_FLAG_ENT(DF, ORIGIN),
1723 LLVM_READOBJ_DT_FLAG_ENT(DF, SYMBOLIC),
1724 LLVM_READOBJ_DT_FLAG_ENT(DF, TEXTREL),
1725 LLVM_READOBJ_DT_FLAG_ENT(DF, BIND_NOW),
1726 LLVM_READOBJ_DT_FLAG_ENT(DF, STATIC_TLS)
1727};
George Rimar47936762016-01-16 00:49:19 +00001728
1729static const EnumEntry<unsigned> ElfDynamicDTFlags1[] = {
George Rimarec895f12019-05-16 06:22:51 +00001730 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOW),
1731 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAL),
1732 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GROUP),
1733 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODELETE),
1734 LLVM_READOBJ_DT_FLAG_ENT(DF_1, LOADFLTR),
1735 LLVM_READOBJ_DT_FLAG_ENT(DF_1, INITFIRST),
1736 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOOPEN),
1737 LLVM_READOBJ_DT_FLAG_ENT(DF_1, ORIGIN),
1738 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DIRECT),
1739 LLVM_READOBJ_DT_FLAG_ENT(DF_1, TRANS),
1740 LLVM_READOBJ_DT_FLAG_ENT(DF_1, INTERPOSE),
1741 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODEFLIB),
1742 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODUMP),
1743 LLVM_READOBJ_DT_FLAG_ENT(DF_1, CONFALT),
1744 LLVM_READOBJ_DT_FLAG_ENT(DF_1, ENDFILTEE),
1745 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DISPRELDNE),
1746 LLVM_READOBJ_DT_FLAG_ENT(DF_1, DISPRELPND),
1747 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NODIRECT),
1748 LLVM_READOBJ_DT_FLAG_ENT(DF_1, IGNMULDEF),
1749 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOKSYMS),
1750 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NOHDR),
1751 LLVM_READOBJ_DT_FLAG_ENT(DF_1, EDITED),
1752 LLVM_READOBJ_DT_FLAG_ENT(DF_1, NORELOC),
1753 LLVM_READOBJ_DT_FLAG_ENT(DF_1, SYMINTPOSE),
1754 LLVM_READOBJ_DT_FLAG_ENT(DF_1, GLOBAUDIT),
1755 LLVM_READOBJ_DT_FLAG_ENT(DF_1, SINGLETON)
1756};
George Rimar47936762016-01-16 00:49:19 +00001757
1758static const EnumEntry<unsigned> ElfDynamicDTMipsFlags[] = {
George Rimarec895f12019-05-16 06:22:51 +00001759 LLVM_READOBJ_DT_FLAG_ENT(RHF, NONE),
1760 LLVM_READOBJ_DT_FLAG_ENT(RHF, QUICKSTART),
1761 LLVM_READOBJ_DT_FLAG_ENT(RHF, NOTPOT),
1762 LLVM_READOBJ_DT_FLAG_ENT(RHS, NO_LIBRARY_REPLACEMENT),
1763 LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_MOVE),
1764 LLVM_READOBJ_DT_FLAG_ENT(RHF, SGI_ONLY),
1765 LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_INIT),
1766 LLVM_READOBJ_DT_FLAG_ENT(RHF, DELTA_C_PLUS_PLUS),
1767 LLVM_READOBJ_DT_FLAG_ENT(RHF, GUARANTEE_START_INIT),
1768 LLVM_READOBJ_DT_FLAG_ENT(RHF, PIXIE),
1769 LLVM_READOBJ_DT_FLAG_ENT(RHF, DEFAULT_DELAY_LOAD),
1770 LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTART),
1771 LLVM_READOBJ_DT_FLAG_ENT(RHF, REQUICKSTARTED),
1772 LLVM_READOBJ_DT_FLAG_ENT(RHF, CORD),
1773 LLVM_READOBJ_DT_FLAG_ENT(RHF, NO_UNRES_UNDEF),
1774 LLVM_READOBJ_DT_FLAG_ENT(RHF, RLD_ORDER_SAFE)
1775};
George Rimar47936762016-01-16 00:49:19 +00001776
1777#undef LLVM_READOBJ_DT_FLAG_ENT
1778
1779template <typename T, typename TFlag>
1780void printFlags(T Value, ArrayRef<EnumEntry<TFlag>> Flags, raw_ostream &OS) {
Eugene Zelenko416e0592017-06-09 21:41:54 +00001781 using FlagEntry = EnumEntry<TFlag>;
1782 using FlagVector = SmallVector<FlagEntry, 10>;
George Rimar47936762016-01-16 00:49:19 +00001783 FlagVector SetFlags;
1784
1785 for (const auto &Flag : Flags) {
1786 if (Flag.Value == 0)
1787 continue;
1788
1789 if ((Value & Flag.Value) == Flag.Value)
1790 SetFlags.push_back(Flag);
1791 }
1792
1793 for (const auto &Flag : SetFlags) {
1794 OS << Flag.Name << " ";
1795 }
1796}
1797
1798template <class ELFT>
Simon Atanasyan8362cbe2019-05-24 12:22:53 +00001799void ELFDumper<ELFT>::printDynamicEntry(raw_ostream &OS, uint64_t Type,
1800 uint64_t Value) const {
George Rimar9e88a262019-05-14 14:22:44 +00001801 const char *ConvChar =
1802 (opts::Output == opts::GNU) ? "0x%" PRIx64 : "0x%" PRIX64;
Peter Smith49d72212019-06-04 11:44:33 +00001803
1804 // Handle custom printing of architecture specific tags
1805 switch (ObjF->getELFFile()->getHeader()->e_machine) {
1806 case EM_AARCH64:
1807 switch (Type) {
1808 case DT_AARCH64_BTI_PLT:
1809 case DT_AARCH64_PAC_PLT:
1810 OS << Value;
1811 return;
1812 default:
1813 break;
1814 }
1815 break;
1816 case EM_HEXAGON:
1817 switch (Type) {
1818 case DT_HEXAGON_VER:
1819 OS << Value;
1820 return;
1821 case DT_HEXAGON_SYMSZ:
1822 case DT_HEXAGON_PLT:
1823 OS << format(ConvChar, Value);
1824 return;
1825 default:
1826 break;
1827 }
1828 break;
1829 case EM_MIPS:
1830 switch (Type) {
1831 case DT_MIPS_RLD_VERSION:
1832 case DT_MIPS_LOCAL_GOTNO:
1833 case DT_MIPS_SYMTABNO:
1834 case DT_MIPS_UNREFEXTNO:
1835 OS << Value;
1836 return;
1837 case DT_MIPS_TIME_STAMP:
1838 case DT_MIPS_ICHECKSUM:
1839 case DT_MIPS_IVERSION:
1840 case DT_MIPS_BASE_ADDRESS:
1841 case DT_MIPS_MSYM:
1842 case DT_MIPS_CONFLICT:
1843 case DT_MIPS_LIBLIST:
1844 case DT_MIPS_CONFLICTNO:
1845 case DT_MIPS_LIBLISTNO:
1846 case DT_MIPS_GOTSYM:
1847 case DT_MIPS_HIPAGENO:
1848 case DT_MIPS_RLD_MAP:
1849 case DT_MIPS_DELTA_CLASS:
1850 case DT_MIPS_DELTA_CLASS_NO:
1851 case DT_MIPS_DELTA_INSTANCE:
1852 case DT_MIPS_DELTA_RELOC:
1853 case DT_MIPS_DELTA_RELOC_NO:
1854 case DT_MIPS_DELTA_SYM:
1855 case DT_MIPS_DELTA_SYM_NO:
1856 case DT_MIPS_DELTA_CLASSSYM:
1857 case DT_MIPS_DELTA_CLASSSYM_NO:
1858 case DT_MIPS_CXX_FLAGS:
1859 case DT_MIPS_PIXIE_INIT:
1860 case DT_MIPS_SYMBOL_LIB:
1861 case DT_MIPS_LOCALPAGE_GOTIDX:
1862 case DT_MIPS_LOCAL_GOTIDX:
1863 case DT_MIPS_HIDDEN_GOTIDX:
1864 case DT_MIPS_PROTECTED_GOTIDX:
1865 case DT_MIPS_OPTIONS:
1866 case DT_MIPS_INTERFACE:
1867 case DT_MIPS_DYNSTR_ALIGN:
1868 case DT_MIPS_INTERFACE_SIZE:
1869 case DT_MIPS_RLD_TEXT_RESOLVE_ADDR:
1870 case DT_MIPS_PERF_SUFFIX:
1871 case DT_MIPS_COMPACT_SIZE:
1872 case DT_MIPS_GP_VALUE:
1873 case DT_MIPS_AUX_DYNAMIC:
1874 case DT_MIPS_PLTGOT:
1875 case DT_MIPS_RWPLT:
1876 case DT_MIPS_RLD_MAP_REL:
1877 OS << format(ConvChar, Value);
1878 return;
1879 case DT_MIPS_FLAGS:
1880 printFlags(Value, makeArrayRef(ElfDynamicDTMipsFlags), OS);
1881 return;
1882 default:
1883 break;
1884 }
1885 break;
1886 default:
1887 break;
1888 }
1889
George Rimar47936762016-01-16 00:49:19 +00001890 switch (Type) {
1891 case DT_PLTREL:
1892 if (Value == DT_REL) {
1893 OS << "REL";
1894 break;
1895 } else if (Value == DT_RELA) {
1896 OS << "RELA";
1897 break;
1898 }
Justin Bognerb03fd122016-08-17 05:10:15 +00001899 LLVM_FALLTHROUGH;
George Rimar47936762016-01-16 00:49:19 +00001900 case DT_PLTGOT:
1901 case DT_HASH:
1902 case DT_STRTAB:
1903 case DT_SYMTAB:
1904 case DT_RELA:
1905 case DT_INIT:
1906 case DT_FINI:
1907 case DT_REL:
1908 case DT_JMPREL:
1909 case DT_INIT_ARRAY:
1910 case DT_FINI_ARRAY:
1911 case DT_PREINIT_ARRAY:
1912 case DT_DEBUG:
1913 case DT_VERDEF:
1914 case DT_VERNEED:
1915 case DT_VERSYM:
1916 case DT_GNU_HASH:
1917 case DT_NULL:
Hemant Kulkarnicb21f3c2016-05-12 22:16:53 +00001918 OS << format(ConvChar, Value);
George Rimar47936762016-01-16 00:49:19 +00001919 break;
Davide Italiano8c503672016-01-16 06:06:36 +00001920 case DT_RELACOUNT:
George Rimar47936762016-01-16 00:49:19 +00001921 case DT_RELCOUNT:
1922 case DT_VERDEFNUM:
1923 case DT_VERNEEDNUM:
George Rimar47936762016-01-16 00:49:19 +00001924 OS << Value;
1925 break;
1926 case DT_PLTRELSZ:
1927 case DT_RELASZ:
1928 case DT_RELAENT:
1929 case DT_STRSZ:
1930 case DT_SYMENT:
1931 case DT_RELSZ:
1932 case DT_RELENT:
1933 case DT_INIT_ARRAYSZ:
1934 case DT_FINI_ARRAYSZ:
1935 case DT_PREINIT_ARRAYSZ:
Peter Collingbourne5c54f152017-10-27 17:49:40 +00001936 case DT_ANDROID_RELSZ:
1937 case DT_ANDROID_RELASZ:
George Rimar47936762016-01-16 00:49:19 +00001938 OS << Value << " (bytes)";
1939 break;
1940 case DT_NEEDED:
George Rimar47936762016-01-16 00:49:19 +00001941 case DT_SONAME:
George Rimard8a4eca2016-09-02 07:35:19 +00001942 case DT_AUXILIARY:
Xing GUOeee62262019-03-07 14:53:10 +00001943 case DT_USED:
Yuanfang Chen40a156b2019-06-19 19:31:07 +00001944 case DT_FILTER:
1945 case DT_RPATH:
1946 case DT_RUNPATH: {
James Hendersonf7cfabb2019-06-14 12:02:01 +00001947 const std::map<uint64_t, const char*> TagNames = {
1948 {DT_NEEDED, "Shared library"},
1949 {DT_SONAME, "Library soname"},
1950 {DT_AUXILIARY, "Auxiliary library"},
1951 {DT_USED, "Not needed object"},
1952 {DT_FILTER, "Filter library"},
Yuanfang Chen40a156b2019-06-19 19:31:07 +00001953 {DT_RPATH, "Library rpath"},
1954 {DT_RUNPATH, "Library runpath"},
James Hendersonf7cfabb2019-06-14 12:02:01 +00001955 };
Yuanfang Chenabbc3ff2019-07-18 17:04:28 +00001956 OS << TagNames.at(Type) << ": [" << getDynamicString(Value) << "]";
Xing GUOeee62262019-03-07 14:53:10 +00001957 break;
James Hendersonf7cfabb2019-06-14 12:02:01 +00001958 }
George Rimar47936762016-01-16 00:49:19 +00001959 case DT_FLAGS:
1960 printFlags(Value, makeArrayRef(ElfDynamicDTFlags), OS);
1961 break;
1962 case DT_FLAGS_1:
1963 printFlags(Value, makeArrayRef(ElfDynamicDTFlags1), OS);
1964 break;
1965 default:
Hemant Kulkarnicb21f3c2016-05-12 22:16:53 +00001966 OS << format(ConvChar, Value);
George Rimar47936762016-01-16 00:49:19 +00001967 break;
1968 }
1969}
1970
Yuanfang Chenabbc3ff2019-07-18 17:04:28 +00001971template <class ELFT>
1972std::string ELFDumper<ELFT>::getDynamicString(uint64_t Value) const {
1973 if (DynamicStringTable.empty())
1974 return "<String table is empty or was not found>";
1975 if (Value < DynamicStringTable.size())
1976 return DynamicStringTable.data() + Value;
1977 return Twine("<Invalid offset 0x" + utohexstr(Value) + ">").str();
1978}
1979
George Rimar9e88a262019-05-14 14:22:44 +00001980template <class ELFT> void ELFDumper<ELFT>::printUnwindInfo() {
Peter Collingbourneac136cd2019-02-28 22:42:55 +00001981 DwarfCFIEH::PrinterContext<ELFT> Ctx(W, ObjF);
1982 Ctx.printUnwindInformation();
George Rimar47936762016-01-16 00:49:19 +00001983}
1984
1985namespace {
Eugene Zelenko416e0592017-06-09 21:41:54 +00001986
Rui Ueyama1b31eb92018-01-12 01:40:32 +00001987template <> void ELFDumper<ELF32LE>::printUnwindInfo() {
Luke Cheesemanf57d7d82018-12-18 10:37:42 +00001988 const ELFFile<ELF32LE> *Obj = ObjF->getELFFile();
George Rimar47936762016-01-16 00:49:19 +00001989 const unsigned Machine = Obj->getHeader()->e_machine;
1990 if (Machine == EM_ARM) {
Rui Ueyama1b31eb92018-01-12 01:40:32 +00001991 ARM::EHABI::PrinterContext<ELF32LE> Ctx(W, Obj, DotSymtabSec);
Peter Collingbourneac136cd2019-02-28 22:42:55 +00001992 Ctx.PrintUnwindInformation();
George Rimar47936762016-01-16 00:49:19 +00001993 }
Peter Collingbourneac136cd2019-02-28 22:42:55 +00001994 DwarfCFIEH::PrinterContext<ELF32LE> Ctx(W, ObjF);
1995 Ctx.printUnwindInformation();
George Rimar47936762016-01-16 00:49:19 +00001996}
Eugene Zelenko416e0592017-06-09 21:41:54 +00001997
1998} // end anonymous namespace
George Rimar47936762016-01-16 00:49:19 +00001999
George Rimar9e88a262019-05-14 14:22:44 +00002000template <class ELFT> void ELFDumper<ELFT>::printDynamicTable() {
Simon Atanasyan8362cbe2019-05-24 12:22:53 +00002001 ELFDumperStyle->printDynamic(ObjF->getELFFile());
George Rimar47936762016-01-16 00:49:19 +00002002}
2003
George Rimar9e88a262019-05-14 14:22:44 +00002004template <class ELFT> void ELFDumper<ELFT>::printNeededLibraries() {
George Rimar47936762016-01-16 00:49:19 +00002005 ListScope D(W, "NeededLibraries");
2006
Yuanfang Chenabbc3ff2019-07-18 17:04:28 +00002007 std::vector<std::string> Libs;
George Rimar47936762016-01-16 00:49:19 +00002008 for (const auto &Entry : dynamic_table())
Yuanfang Chenabbc3ff2019-07-18 17:04:28 +00002009 if (Entry.d_tag == ELF::DT_NEEDED)
2010 Libs.push_back(getDynamicString(Entry.d_un.d_val));
George Rimar47936762016-01-16 00:49:19 +00002011
Fangrui Songa5355a52019-04-22 15:53:43 +00002012 llvm::stable_sort(Libs);
George Rimar47936762016-01-16 00:49:19 +00002013
Sam Clegg88e9a152018-01-10 00:14:19 +00002014 for (const auto &L : Libs)
George Rimar9e88a262019-05-14 14:22:44 +00002015 W.startLine() << L << "\n";
George Rimar47936762016-01-16 00:49:19 +00002016}
2017
George Rimar9e88a262019-05-14 14:22:44 +00002018template <typename ELFT> void ELFDumper<ELFT>::printHashTable() {
George Rimar47936762016-01-16 00:49:19 +00002019 DictScope D(W, "HashTable");
2020 if (!HashTable)
2021 return;
2022 W.printNumber("Num Buckets", HashTable->nbucket);
2023 W.printNumber("Num Chains", HashTable->nchain);
2024 W.printList("Buckets", HashTable->buckets());
2025 W.printList("Chains", HashTable->chains());
2026}
2027
George Rimar9e88a262019-05-14 14:22:44 +00002028template <typename ELFT> void ELFDumper<ELFT>::printGnuHashTable() {
George Rimar47936762016-01-16 00:49:19 +00002029 DictScope D(W, "GnuHashTable");
2030 if (!GnuHashTable)
2031 return;
2032 W.printNumber("Num Buckets", GnuHashTable->nbuckets);
2033 W.printNumber("First Hashed Symbol Index", GnuHashTable->symndx);
2034 W.printNumber("Num Mask Words", GnuHashTable->maskwords);
2035 W.printNumber("Shift Count", GnuHashTable->shift2);
2036 W.printHexList("Bloom Filter", GnuHashTable->filter());
2037 W.printList("Buckets", GnuHashTable->buckets());
Rafael Espindolace2fbdd2016-02-17 15:38:21 +00002038 Elf_Sym_Range Syms = dynamic_symbols();
2039 unsigned NumSyms = std::distance(Syms.begin(), Syms.end());
2040 if (!NumSyms)
George Rimar47936762016-01-16 00:49:19 +00002041 reportError("No dynamic symbol section");
Rafael Espindolace2fbdd2016-02-17 15:38:21 +00002042 W.printHexList("Values", GnuHashTable->values(NumSyms));
George Rimar47936762016-01-16 00:49:19 +00002043}
2044
2045template <typename ELFT> void ELFDumper<ELFT>::printLoadName() {
Sam Clegg88e9a152018-01-10 00:14:19 +00002046 W.printString("LoadName", SOName);
George Rimar47936762016-01-16 00:49:19 +00002047}
2048
George Rimar9e88a262019-05-14 14:22:44 +00002049template <class ELFT> void ELFDumper<ELFT>::printAttributes() {
George Rimar47936762016-01-16 00:49:19 +00002050 W.startLine() << "Attributes not implemented.\n";
2051}
2052
2053namespace {
Eugene Zelenko416e0592017-06-09 21:41:54 +00002054
Rui Ueyama1b31eb92018-01-12 01:40:32 +00002055template <> void ELFDumper<ELF32LE>::printAttributes() {
Luke Cheesemanf57d7d82018-12-18 10:37:42 +00002056 const ELFFile<ELF32LE> *Obj = ObjF->getELFFile();
George Rimar47936762016-01-16 00:49:19 +00002057 if (Obj->getHeader()->e_machine != EM_ARM) {
2058 W.startLine() << "Attributes not implemented.\n";
2059 return;
2060 }
2061
2062 DictScope BA(W, "BuildAttributes");
Rafael Espindola25be8c82016-11-02 14:10:57 +00002063 for (const ELFO::Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
George Rimar47936762016-01-16 00:49:19 +00002064 if (Sec.sh_type != ELF::SHT_ARM_ATTRIBUTES)
2065 continue;
2066
Rafael Espindolaf04f1842016-02-17 16:21:49 +00002067 ArrayRef<uint8_t> Contents = unwrapOrError(Obj->getSectionContents(&Sec));
2068 if (Contents[0] != ARMBuildAttrs::Format_Version) {
Benjamin Kramer3a13ed62017-12-28 16:58:54 +00002069 errs() << "unrecognised FormatVersion: 0x"
2070 << Twine::utohexstr(Contents[0]) << '\n';
George Rimar47936762016-01-16 00:49:19 +00002071 continue;
2072 }
2073
Rafael Espindolaf04f1842016-02-17 16:21:49 +00002074 W.printHex("FormatVersion", Contents[0]);
2075 if (Contents.size() == 1)
George Rimar47936762016-01-16 00:49:19 +00002076 continue;
2077
Sam Parkerdf7c6ef2017-01-18 13:52:12 +00002078 ARMAttributeParser(&W).Parse(Contents, true);
George Rimar47936762016-01-16 00:49:19 +00002079 }
2080}
George Rimar47936762016-01-16 00:49:19 +00002081
George Rimar47936762016-01-16 00:49:19 +00002082template <class ELFT> class MipsGOTParser {
2083public:
Rafael Espindola6bc29902016-10-06 14:07:26 +00002084 TYPEDEF_ELF_TYPES(ELFT)
Simon Atanasyan62d32592017-12-21 10:26:02 +00002085 using Entry = typename ELFO::Elf_Addr;
2086 using Entries = ArrayRef<Entry>;
Eugene Zelenko416e0592017-06-09 21:41:54 +00002087
Simon Atanasyan62d32592017-12-21 10:26:02 +00002088 const bool IsStatic;
George Rimarec895f12019-05-16 06:22:51 +00002089 const ELFO * const Obj;
George Rimar47936762016-01-16 00:49:19 +00002090
Simon Atanasyan62d32592017-12-21 10:26:02 +00002091 MipsGOTParser(const ELFO *Obj, Elf_Dyn_Range DynTable, Elf_Sym_Range DynSyms);
2092
2093 bool hasGot() const { return !GotEntries.empty(); }
2094 bool hasPlt() const { return !PltEntries.empty(); }
2095
2096 uint64_t getGp() const;
2097
2098 const Entry *getGotLazyResolver() const;
2099 const Entry *getGotModulePointer() const;
2100 const Entry *getPltLazyResolver() const;
2101 const Entry *getPltModulePointer() const;
2102
2103 Entries getLocalEntries() const;
2104 Entries getGlobalEntries() const;
2105 Entries getOtherEntries() const;
2106 Entries getPltEntries() const;
2107
George Rimarec895f12019-05-16 06:22:51 +00002108 uint64_t getGotAddress(const Entry * E) const;
2109 int64_t getGotOffset(const Entry * E) const;
Simon Atanasyan62d32592017-12-21 10:26:02 +00002110 const Elf_Sym *getGotSym(const Entry *E) const;
2111
George Rimarec895f12019-05-16 06:22:51 +00002112 uint64_t getPltAddress(const Entry * E) const;
Simon Atanasyan62d32592017-12-21 10:26:02 +00002113 const Elf_Sym *getPltSym(const Entry *E) const;
2114
2115 StringRef getPltStrTable() const { return PltStrTable; }
George Rimar47936762016-01-16 00:49:19 +00002116
2117private:
Simon Atanasyan62d32592017-12-21 10:26:02 +00002118 const Elf_Shdr *GotSec;
2119 size_t LocalNum;
2120 size_t GlobalNum;
George Rimar47936762016-01-16 00:49:19 +00002121
Simon Atanasyan62d32592017-12-21 10:26:02 +00002122 const Elf_Shdr *PltSec;
2123 const Elf_Shdr *PltRelSec;
2124 const Elf_Shdr *PltSymTable;
2125 Elf_Sym_Range GotDynSyms;
2126 StringRef PltStrTable;
George Rimar47936762016-01-16 00:49:19 +00002127
Simon Atanasyan62d32592017-12-21 10:26:02 +00002128 Entries GotEntries;
2129 Entries PltEntries;
George Rimar47936762016-01-16 00:49:19 +00002130};
Eugene Zelenko416e0592017-06-09 21:41:54 +00002131
2132} // end anonymous namespace
George Rimar47936762016-01-16 00:49:19 +00002133
2134template <class ELFT>
Simon Atanasyan62d32592017-12-21 10:26:02 +00002135MipsGOTParser<ELFT>::MipsGOTParser(const ELFO *Obj, Elf_Dyn_Range DynTable,
2136 Elf_Sym_Range DynSyms)
2137 : IsStatic(DynTable.empty()), Obj(Obj), GotSec(nullptr), LocalNum(0),
2138 GlobalNum(0), PltSec(nullptr), PltRelSec(nullptr), PltSymTable(nullptr) {
2139 // See "Global Offset Table" in Chapter 5 in the following document
2140 // for detailed GOT description.
2141 // ftp://www.linux-mips.org/pub/linux/mips/doc/ABI/mipsabi.pdf
2142
2143 // Find static GOT secton.
2144 if (IsStatic) {
2145 GotSec = findSectionByName(*Obj, ".got");
2146 if (!GotSec)
2147 reportError("Cannot find .got section");
2148
2149 ArrayRef<uint8_t> Content = unwrapOrError(Obj->getSectionContents(GotSec));
2150 GotEntries = Entries(reinterpret_cast<const Entry *>(Content.data()),
2151 Content.size() / sizeof(Entry));
2152 LocalNum = GotEntries.size();
2153 return;
2154 }
2155
2156 // Lookup dynamic table tags which define GOT/PLT layouts.
2157 Optional<uint64_t> DtPltGot;
2158 Optional<uint64_t> DtLocalGotNum;
2159 Optional<uint64_t> DtGotSym;
2160 Optional<uint64_t> DtMipsPltGot;
2161 Optional<uint64_t> DtJmpRel;
George Rimar47936762016-01-16 00:49:19 +00002162 for (const auto &Entry : DynTable) {
2163 switch (Entry.getTag()) {
2164 case ELF::DT_PLTGOT:
2165 DtPltGot = Entry.getVal();
2166 break;
2167 case ELF::DT_MIPS_LOCAL_GOTNO:
2168 DtLocalGotNum = Entry.getVal();
2169 break;
2170 case ELF::DT_MIPS_GOTSYM:
2171 DtGotSym = Entry.getVal();
2172 break;
2173 case ELF::DT_MIPS_PLTGOT:
2174 DtMipsPltGot = Entry.getVal();
2175 break;
2176 case ELF::DT_JMPREL:
2177 DtJmpRel = Entry.getVal();
2178 break;
2179 }
2180 }
Simon Atanasyan62d32592017-12-21 10:26:02 +00002181
2182 // Find dynamic GOT section.
2183 if (DtPltGot || DtLocalGotNum || DtGotSym) {
2184 if (!DtPltGot)
2185 report_fatal_error("Cannot find PLTGOT dynamic table tag.");
2186 if (!DtLocalGotNum)
2187 report_fatal_error("Cannot find MIPS_LOCAL_GOTNO dynamic table tag.");
2188 if (!DtGotSym)
2189 report_fatal_error("Cannot find MIPS_GOTSYM dynamic table tag.");
2190
2191 size_t DynSymTotal = DynSyms.size();
2192 if (*DtGotSym > DynSymTotal)
2193 reportError("MIPS_GOTSYM exceeds a number of dynamic symbols");
2194
2195 GotSec = findNotEmptySectionByAddress(Obj, *DtPltGot);
2196 if (!GotSec)
2197 reportError("There is no not empty GOT section at 0x" +
2198 Twine::utohexstr(*DtPltGot));
2199
2200 LocalNum = *DtLocalGotNum;
2201 GlobalNum = DynSymTotal - *DtGotSym;
2202
2203 ArrayRef<uint8_t> Content = unwrapOrError(Obj->getSectionContents(GotSec));
2204 GotEntries = Entries(reinterpret_cast<const Entry *>(Content.data()),
2205 Content.size() / sizeof(Entry));
2206 GotDynSyms = DynSyms.drop_front(*DtGotSym);
2207 }
2208
2209 // Find PLT section.
2210 if (DtMipsPltGot || DtJmpRel) {
2211 if (!DtMipsPltGot)
2212 report_fatal_error("Cannot find MIPS_PLTGOT dynamic table tag.");
2213 if (!DtJmpRel)
2214 report_fatal_error("Cannot find JMPREL dynamic table tag.");
2215
2216 PltSec = findNotEmptySectionByAddress(Obj, *DtMipsPltGot);
2217 if (!PltSec)
2218 report_fatal_error("There is no not empty PLTGOT section at 0x " +
2219 Twine::utohexstr(*DtMipsPltGot));
2220
2221 PltRelSec = findNotEmptySectionByAddress(Obj, *DtJmpRel);
2222 if (!PltRelSec)
2223 report_fatal_error("There is no not empty RELPLT section at 0x" +
2224 Twine::utohexstr(*DtJmpRel));
2225
2226 ArrayRef<uint8_t> PltContent =
2227 unwrapOrError(Obj->getSectionContents(PltSec));
2228 PltEntries = Entries(reinterpret_cast<const Entry *>(PltContent.data()),
2229 PltContent.size() / sizeof(Entry));
2230
2231 PltSymTable = unwrapOrError(Obj->getSection(PltRelSec->sh_link));
2232 PltStrTable = unwrapOrError(Obj->getStringTableForSymtab(*PltSymTable));
2233 }
2234}
2235
2236template <class ELFT> uint64_t MipsGOTParser<ELFT>::getGp() const {
2237 return GotSec->sh_addr + 0x7ff0;
George Rimar47936762016-01-16 00:49:19 +00002238}
2239
Simon Atanasyand4b693b2017-12-02 13:06:35 +00002240template <class ELFT>
Simon Atanasyan62d32592017-12-21 10:26:02 +00002241const typename MipsGOTParser<ELFT>::Entry *
2242MipsGOTParser<ELFT>::getGotLazyResolver() const {
2243 return LocalNum > 0 ? &GotEntries[0] : nullptr;
George Rimar47936762016-01-16 00:49:19 +00002244}
2245
2246template <class ELFT>
Simon Atanasyan62d32592017-12-21 10:26:02 +00002247const typename MipsGOTParser<ELFT>::Entry *
2248MipsGOTParser<ELFT>::getGotModulePointer() const {
2249 if (LocalNum < 2)
2250 return nullptr;
2251 const Entry &E = GotEntries[1];
2252 if ((E >> (sizeof(Entry) * 8 - 1)) == 0)
2253 return nullptr;
2254 return &E;
George Rimar47936762016-01-16 00:49:19 +00002255}
2256
2257template <class ELFT>
Simon Atanasyan62d32592017-12-21 10:26:02 +00002258typename MipsGOTParser<ELFT>::Entries
2259MipsGOTParser<ELFT>::getLocalEntries() const {
2260 size_t Skip = getGotModulePointer() ? 2 : 1;
2261 if (LocalNum - Skip <= 0)
2262 return Entries();
2263 return GotEntries.slice(Skip, LocalNum - Skip);
George Rimar47936762016-01-16 00:49:19 +00002264}
2265
2266template <class ELFT>
Simon Atanasyan62d32592017-12-21 10:26:02 +00002267typename MipsGOTParser<ELFT>::Entries
2268MipsGOTParser<ELFT>::getGlobalEntries() const {
2269 if (GlobalNum == 0)
2270 return Entries();
2271 return GotEntries.slice(LocalNum, GlobalNum);
George Rimar47936762016-01-16 00:49:19 +00002272}
2273
2274template <class ELFT>
Simon Atanasyan62d32592017-12-21 10:26:02 +00002275typename MipsGOTParser<ELFT>::Entries
2276MipsGOTParser<ELFT>::getOtherEntries() const {
2277 size_t OtherNum = GotEntries.size() - LocalNum - GlobalNum;
2278 if (OtherNum == 0)
2279 return Entries();
2280 return GotEntries.slice(LocalNum + GlobalNum, OtherNum);
George Rimar47936762016-01-16 00:49:19 +00002281}
2282
2283template <class ELFT>
Simon Atanasyan62d32592017-12-21 10:26:02 +00002284uint64_t MipsGOTParser<ELFT>::getGotAddress(const Entry *E) const {
2285 int64_t Offset = std::distance(GotEntries.data(), E) * sizeof(Entry);
2286 return GotSec->sh_addr + Offset;
George Rimar47936762016-01-16 00:49:19 +00002287}
2288
2289template <class ELFT>
Simon Atanasyan62d32592017-12-21 10:26:02 +00002290int64_t MipsGOTParser<ELFT>::getGotOffset(const Entry *E) const {
2291 int64_t Offset = std::distance(GotEntries.data(), E) * sizeof(Entry);
2292 return Offset - 0x7ff0;
2293}
George Rimar47936762016-01-16 00:49:19 +00002294
Simon Atanasyan62d32592017-12-21 10:26:02 +00002295template <class ELFT>
2296const typename MipsGOTParser<ELFT>::Elf_Sym *
2297MipsGOTParser<ELFT>::getGotSym(const Entry *E) const {
2298 int64_t Offset = std::distance(GotEntries.data(), E);
2299 return &GotDynSyms[Offset - LocalNum];
2300}
George Rimar47936762016-01-16 00:49:19 +00002301
Simon Atanasyan62d32592017-12-21 10:26:02 +00002302template <class ELFT>
2303const typename MipsGOTParser<ELFT>::Entry *
2304MipsGOTParser<ELFT>::getPltLazyResolver() const {
2305 return PltEntries.empty() ? nullptr : &PltEntries[0];
2306}
2307
2308template <class ELFT>
2309const typename MipsGOTParser<ELFT>::Entry *
2310MipsGOTParser<ELFT>::getPltModulePointer() const {
2311 return PltEntries.size() < 2 ? nullptr : &PltEntries[1];
2312}
2313
2314template <class ELFT>
2315typename MipsGOTParser<ELFT>::Entries
2316MipsGOTParser<ELFT>::getPltEntries() const {
2317 if (PltEntries.size() <= 2)
2318 return Entries();
2319 return PltEntries.slice(2, PltEntries.size() - 2);
2320}
2321
2322template <class ELFT>
2323uint64_t MipsGOTParser<ELFT>::getPltAddress(const Entry *E) const {
2324 int64_t Offset = std::distance(PltEntries.data(), E) * sizeof(Entry);
2325 return PltSec->sh_addr + Offset;
2326}
2327
2328template <class ELFT>
2329const typename MipsGOTParser<ELFT>::Elf_Sym *
2330MipsGOTParser<ELFT>::getPltSym(const Entry *E) const {
2331 int64_t Offset = std::distance(getPltEntries().data(), E);
2332 if (PltRelSec->sh_type == ELF::SHT_REL) {
2333 Elf_Rel_Range Rels = unwrapOrError(Obj->rels(PltRelSec));
2334 return unwrapOrError(Obj->getRelocationSymbol(&Rels[Offset], PltSymTable));
2335 } else {
2336 Elf_Rela_Range Rels = unwrapOrError(Obj->relas(PltRelSec));
2337 return unwrapOrError(Obj->getRelocationSymbol(&Rels[Offset], PltSymTable));
2338 }
George Rimar47936762016-01-16 00:49:19 +00002339}
2340
2341template <class ELFT> void ELFDumper<ELFT>::printMipsPLTGOT() {
Luke Cheesemanf57d7d82018-12-18 10:37:42 +00002342 const ELFFile<ELFT> *Obj = ObjF->getELFFile();
Simon Atanasyan62d32592017-12-21 10:26:02 +00002343 if (Obj->getHeader()->e_machine != EM_MIPS)
2344 reportError("MIPS PLT GOT is available for MIPS targets only");
George Rimar47936762016-01-16 00:49:19 +00002345
Simon Atanasyan62d32592017-12-21 10:26:02 +00002346 MipsGOTParser<ELFT> Parser(Obj, dynamic_table(), dynamic_symbols());
2347 if (Parser.hasGot())
2348 ELFDumperStyle->printMipsGOT(Parser);
2349 if (Parser.hasPlt())
2350 ELFDumperStyle->printMipsPLT(Parser);
George Rimar47936762016-01-16 00:49:19 +00002351}
2352
2353static const EnumEntry<unsigned> ElfMipsISAExtType[] = {
George Rimarec895f12019-05-16 06:22:51 +00002354 {"None", Mips::AFL_EXT_NONE},
2355 {"Broadcom SB-1", Mips::AFL_EXT_SB1},
2356 {"Cavium Networks Octeon", Mips::AFL_EXT_OCTEON},
2357 {"Cavium Networks Octeon2", Mips::AFL_EXT_OCTEON2},
2358 {"Cavium Networks OcteonP", Mips::AFL_EXT_OCTEONP},
2359 {"Cavium Networks Octeon3", Mips::AFL_EXT_OCTEON3},
2360 {"LSI R4010", Mips::AFL_EXT_4010},
2361 {"Loongson 2E", Mips::AFL_EXT_LOONGSON_2E},
2362 {"Loongson 2F", Mips::AFL_EXT_LOONGSON_2F},
2363 {"Loongson 3A", Mips::AFL_EXT_LOONGSON_3A},
2364 {"MIPS R4650", Mips::AFL_EXT_4650},
2365 {"MIPS R5900", Mips::AFL_EXT_5900},
2366 {"MIPS R10000", Mips::AFL_EXT_10000},
2367 {"NEC VR4100", Mips::AFL_EXT_4100},
2368 {"NEC VR4111/VR4181", Mips::AFL_EXT_4111},
2369 {"NEC VR4120", Mips::AFL_EXT_4120},
2370 {"NEC VR5400", Mips::AFL_EXT_5400},
2371 {"NEC VR5500", Mips::AFL_EXT_5500},
2372 {"RMI Xlr", Mips::AFL_EXT_XLR},
2373 {"Toshiba R3900", Mips::AFL_EXT_3900}
2374};
George Rimar47936762016-01-16 00:49:19 +00002375
2376static const EnumEntry<unsigned> ElfMipsASEFlags[] = {
George Rimarec895f12019-05-16 06:22:51 +00002377 {"DSP", Mips::AFL_ASE_DSP},
2378 {"DSPR2", Mips::AFL_ASE_DSPR2},
2379 {"Enhanced VA Scheme", Mips::AFL_ASE_EVA},
2380 {"MCU", Mips::AFL_ASE_MCU},
2381 {"MDMX", Mips::AFL_ASE_MDMX},
2382 {"MIPS-3D", Mips::AFL_ASE_MIPS3D},
2383 {"MT", Mips::AFL_ASE_MT},
2384 {"SmartMIPS", Mips::AFL_ASE_SMARTMIPS},
2385 {"VZ", Mips::AFL_ASE_VIRT},
2386 {"MSA", Mips::AFL_ASE_MSA},
2387 {"MIPS16", Mips::AFL_ASE_MIPS16},
2388 {"microMIPS", Mips::AFL_ASE_MICROMIPS},
2389 {"XPA", Mips::AFL_ASE_XPA},
2390 {"CRC", Mips::AFL_ASE_CRC},
2391 {"GINV", Mips::AFL_ASE_GINV},
George Rimar47936762016-01-16 00:49:19 +00002392};
2393
2394static const EnumEntry<unsigned> ElfMipsFpABIType[] = {
George Rimarec895f12019-05-16 06:22:51 +00002395 {"Hard or soft float", Mips::Val_GNU_MIPS_ABI_FP_ANY},
2396 {"Hard float (double precision)", Mips::Val_GNU_MIPS_ABI_FP_DOUBLE},
2397 {"Hard float (single precision)", Mips::Val_GNU_MIPS_ABI_FP_SINGLE},
2398 {"Soft float", Mips::Val_GNU_MIPS_ABI_FP_SOFT},
2399 {"Hard float (MIPS32r2 64-bit FPU 12 callee-saved)",
2400 Mips::Val_GNU_MIPS_ABI_FP_OLD_64},
2401 {"Hard float (32-bit CPU, Any FPU)", Mips::Val_GNU_MIPS_ABI_FP_XX},
2402 {"Hard float (32-bit CPU, 64-bit FPU)", Mips::Val_GNU_MIPS_ABI_FP_64},
2403 {"Hard float compat (32-bit CPU, 64-bit FPU)",
2404 Mips::Val_GNU_MIPS_ABI_FP_64A}
2405};
George Rimar47936762016-01-16 00:49:19 +00002406
George Rimarec895f12019-05-16 06:22:51 +00002407static const EnumEntry<unsigned> ElfMipsFlags1[] {
2408 {"ODDSPREG", Mips::AFL_FLAGS1_ODDSPREG},
George Rimar47936762016-01-16 00:49:19 +00002409};
2410
2411static int getMipsRegisterSize(uint8_t Flag) {
2412 switch (Flag) {
2413 case Mips::AFL_REG_NONE:
2414 return 0;
2415 case Mips::AFL_REG_32:
2416 return 32;
2417 case Mips::AFL_REG_64:
2418 return 64;
2419 case Mips::AFL_REG_128:
2420 return 128;
2421 default:
2422 return -1;
2423 }
2424}
2425
2426template <class ELFT> void ELFDumper<ELFT>::printMipsABIFlags() {
Luke Cheesemanf57d7d82018-12-18 10:37:42 +00002427 const ELFFile<ELFT> *Obj = ObjF->getELFFile();
George Rimar47936762016-01-16 00:49:19 +00002428 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".MIPS.abiflags");
2429 if (!Shdr) {
2430 W.startLine() << "There is no .MIPS.abiflags section in the file.\n";
2431 return;
2432 }
Rafael Espindolaf04f1842016-02-17 16:21:49 +00002433 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr));
2434 if (Sec.size() != sizeof(Elf_Mips_ABIFlags<ELFT>)) {
George Rimar47936762016-01-16 00:49:19 +00002435 W.startLine() << "The .MIPS.abiflags section has a wrong size.\n";
2436 return;
2437 }
2438
Rafael Espindolaf04f1842016-02-17 16:21:49 +00002439 auto *Flags = reinterpret_cast<const Elf_Mips_ABIFlags<ELFT> *>(Sec.data());
George Rimar47936762016-01-16 00:49:19 +00002440
2441 raw_ostream &OS = W.getOStream();
2442 DictScope GS(W, "MIPS ABI Flags");
2443
2444 W.printNumber("Version", Flags->version);
2445 W.startLine() << "ISA: ";
2446 if (Flags->isa_rev <= 1)
2447 OS << format("MIPS%u", Flags->isa_level);
2448 else
2449 OS << format("MIPS%ur%u", Flags->isa_level, Flags->isa_rev);
2450 OS << "\n";
2451 W.printEnum("ISA Extension", Flags->isa_ext, makeArrayRef(ElfMipsISAExtType));
2452 W.printFlags("ASEs", Flags->ases, makeArrayRef(ElfMipsASEFlags));
2453 W.printEnum("FP ABI", Flags->fp_abi, makeArrayRef(ElfMipsFpABIType));
2454 W.printNumber("GPR size", getMipsRegisterSize(Flags->gpr_size));
2455 W.printNumber("CPR1 size", getMipsRegisterSize(Flags->cpr1_size));
2456 W.printNumber("CPR2 size", getMipsRegisterSize(Flags->cpr2_size));
2457 W.printFlags("Flags 1", Flags->flags1, makeArrayRef(ElfMipsFlags1));
2458 W.printHex("Flags 2", Flags->flags2);
2459}
2460
Simon Atanasyan8a71b532016-05-04 05:58:57 +00002461template <class ELFT>
2462static void printMipsReginfoData(ScopedPrinter &W,
2463 const Elf_Mips_RegInfo<ELFT> &Reginfo) {
2464 W.printHex("GP", Reginfo.ri_gp_value);
2465 W.printHex("General Mask", Reginfo.ri_gprmask);
2466 W.printHex("Co-Proc Mask0", Reginfo.ri_cprmask[0]);
2467 W.printHex("Co-Proc Mask1", Reginfo.ri_cprmask[1]);
2468 W.printHex("Co-Proc Mask2", Reginfo.ri_cprmask[2]);
2469 W.printHex("Co-Proc Mask3", Reginfo.ri_cprmask[3]);
2470}
2471
George Rimar47936762016-01-16 00:49:19 +00002472template <class ELFT> void ELFDumper<ELFT>::printMipsReginfo() {
Luke Cheesemanf57d7d82018-12-18 10:37:42 +00002473 const ELFFile<ELFT> *Obj = ObjF->getELFFile();
George Rimar47936762016-01-16 00:49:19 +00002474 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".reginfo");
2475 if (!Shdr) {
2476 W.startLine() << "There is no .reginfo section in the file.\n";
2477 return;
2478 }
Rafael Espindolaf04f1842016-02-17 16:21:49 +00002479 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr));
2480 if (Sec.size() != sizeof(Elf_Mips_RegInfo<ELFT>)) {
George Rimar47936762016-01-16 00:49:19 +00002481 W.startLine() << "The .reginfo section has a wrong size.\n";
2482 return;
2483 }
2484
George Rimar47936762016-01-16 00:49:19 +00002485 DictScope GS(W, "MIPS RegInfo");
Simon Atanasyan8a71b532016-05-04 05:58:57 +00002486 auto *Reginfo = reinterpret_cast<const Elf_Mips_RegInfo<ELFT> *>(Sec.data());
2487 printMipsReginfoData(W, *Reginfo);
2488}
2489
2490template <class ELFT> void ELFDumper<ELFT>::printMipsOptions() {
Luke Cheesemanf57d7d82018-12-18 10:37:42 +00002491 const ELFFile<ELFT> *Obj = ObjF->getELFFile();
Simon Atanasyan8a71b532016-05-04 05:58:57 +00002492 const Elf_Shdr *Shdr = findSectionByName(*Obj, ".MIPS.options");
2493 if (!Shdr) {
2494 W.startLine() << "There is no .MIPS.options section in the file.\n";
2495 return;
2496 }
2497
2498 DictScope GS(W, "MIPS Options");
2499
2500 ArrayRef<uint8_t> Sec = unwrapOrError(Obj->getSectionContents(Shdr));
2501 while (!Sec.empty()) {
2502 if (Sec.size() < sizeof(Elf_Mips_Options<ELFT>)) {
2503 W.startLine() << "The .MIPS.options section has a wrong size.\n";
2504 return;
2505 }
2506 auto *O = reinterpret_cast<const Elf_Mips_Options<ELFT> *>(Sec.data());
2507 DictScope GS(W, getElfMipsOptionsOdkType(O->kind));
2508 switch (O->kind) {
2509 case ODK_REGINFO:
2510 printMipsReginfoData(W, O->getRegInfo());
2511 break;
2512 default:
2513 W.startLine() << "Unsupported MIPS options tag.\n";
2514 break;
2515 }
2516 Sec = Sec.slice(O->size);
2517 }
George Rimar47936762016-01-16 00:49:19 +00002518}
2519
2520template <class ELFT> void ELFDumper<ELFT>::printStackMap() const {
Luke Cheesemanf57d7d82018-12-18 10:37:42 +00002521 const ELFFile<ELFT> *Obj = ObjF->getELFFile();
George Rimar47936762016-01-16 00:49:19 +00002522 const Elf_Shdr *StackMapSection = nullptr;
Rafael Espindola25be8c82016-11-02 14:10:57 +00002523 for (const auto &Sec : unwrapOrError(Obj->sections())) {
Rafael Espindolaf04f1842016-02-17 16:21:49 +00002524 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
2525 if (Name == ".llvm_stackmaps") {
George Rimar47936762016-01-16 00:49:19 +00002526 StackMapSection = &Sec;
2527 break;
2528 }
2529 }
2530
2531 if (!StackMapSection)
2532 return;
2533
Rafael Espindolaf04f1842016-02-17 16:21:49 +00002534 ArrayRef<uint8_t> StackMapContentsArray =
2535 unwrapOrError(Obj->getSectionContents(StackMapSection));
George Rimar47936762016-01-16 00:49:19 +00002536
Sam Clegg88e9a152018-01-10 00:14:19 +00002537 prettyPrintStackMap(
Philip Reames377f5072019-04-13 02:02:56 +00002538 W, StackMapParser<ELFT::TargetEndianness>(StackMapContentsArray));
George Rimar47936762016-01-16 00:49:19 +00002539}
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +00002540
Hemant Kulkarniab4a46f2016-01-26 19:46:39 +00002541template <class ELFT> void ELFDumper<ELFT>::printGroupSections() {
Luke Cheesemanf57d7d82018-12-18 10:37:42 +00002542 ELFDumperStyle->printGroupSections(ObjF->getELFFile());
Hemant Kulkarniab4a46f2016-01-26 19:46:39 +00002543}
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +00002544
Peter Collingbourne3e227332018-07-17 22:17:18 +00002545template <class ELFT> void ELFDumper<ELFT>::printAddrsig() {
Luke Cheesemanf57d7d82018-12-18 10:37:42 +00002546 ELFDumperStyle->printAddrsig(ObjF->getELFFile());
Peter Collingbourne3e227332018-07-17 22:17:18 +00002547}
2548
Hemant Kulkarnif84cda72016-02-11 03:41:34 +00002549static inline void printFields(formatted_raw_ostream &OS, StringRef Str1,
2550 StringRef Str2) {
2551 OS.PadToColumn(2u);
2552 OS << Str1;
2553 OS.PadToColumn(37u);
2554 OS << Str2 << "\n";
2555 OS.flush();
2556}
2557
George Rimar6fdac3b2018-07-18 08:19:58 +00002558template <class ELFT>
2559static std::string getSectionHeadersNumString(const ELFFile<ELFT> *Obj) {
2560 const typename ELFT::Ehdr *ElfHeader = Obj->getHeader();
2561 if (ElfHeader->e_shnum != 0)
2562 return to_string(ElfHeader->e_shnum);
2563
2564 ArrayRef<typename ELFT::Shdr> Arr = unwrapOrError(Obj->sections());
2565 if (Arr.empty())
2566 return "0";
2567 return "0 (" + to_string(Arr[0].sh_size) + ")";
2568}
2569
2570template <class ELFT>
2571static std::string getSectionHeaderTableIndexString(const ELFFile<ELFT> *Obj) {
2572 const typename ELFT::Ehdr *ElfHeader = Obj->getHeader();
2573 if (ElfHeader->e_shstrndx != SHN_XINDEX)
2574 return to_string(ElfHeader->e_shstrndx);
2575
2576 ArrayRef<typename ELFT::Shdr> Arr = unwrapOrError(Obj->sections());
2577 if (Arr.empty())
2578 return "65535 (corrupt: out of range)";
George Rimar9e88a262019-05-14 14:22:44 +00002579 return to_string(ElfHeader->e_shstrndx) + " (" + to_string(Arr[0].sh_link) +
2580 ")";
George Rimar6fdac3b2018-07-18 08:19:58 +00002581}
2582
Hemant Kulkarnic030f232016-03-15 17:25:31 +00002583template <class ELFT> void GNUStyle<ELFT>::printFileHeaders(const ELFO *Obj) {
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +00002584 const Elf_Ehdr *e = Obj->getHeader();
2585 OS << "ELF Header:\n";
2586 OS << " Magic: ";
2587 std::string Str;
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +00002588 for (int i = 0; i < ELF::EI_NIDENT; i++)
2589 OS << format(" %02x", static_cast<int>(e->e_ident[i]));
2590 OS << "\n";
2591 Str = printEnum(e->e_ident[ELF::EI_CLASS], makeArrayRef(ElfClass));
Hemant Kulkarnif84cda72016-02-11 03:41:34 +00002592 printFields(OS, "Class:", Str);
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +00002593 Str = printEnum(e->e_ident[ELF::EI_DATA], makeArrayRef(ElfDataEncoding));
Hemant Kulkarnif84cda72016-02-11 03:41:34 +00002594 printFields(OS, "Data:", Str);
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +00002595 OS.PadToColumn(2u);
2596 OS << "Version:";
2597 OS.PadToColumn(37u);
2598 OS << to_hexString(e->e_ident[ELF::EI_VERSION]);
2599 if (e->e_version == ELF::EV_CURRENT)
2600 OS << " (current)";
2601 OS << "\n";
2602 Str = printEnum(e->e_ident[ELF::EI_OSABI], makeArrayRef(ElfOSABI));
Hemant Kulkarnif84cda72016-02-11 03:41:34 +00002603 printFields(OS, "OS/ABI:", Str);
Chandler Carruthe8fa5ae2016-11-03 17:11:11 +00002604 Str = "0x" + to_hexString(e->e_ident[ELF::EI_ABIVERSION]);
Hemant Kulkarnif84cda72016-02-11 03:41:34 +00002605 printFields(OS, "ABI Version:", Str);
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +00002606 Str = printEnum(e->e_type, makeArrayRef(ElfObjectFileType));
Hemant Kulkarnif84cda72016-02-11 03:41:34 +00002607 printFields(OS, "Type:", Str);
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +00002608 Str = printEnum(e->e_machine, makeArrayRef(ElfMachineType));
Hemant Kulkarnif84cda72016-02-11 03:41:34 +00002609 printFields(OS, "Machine:", Str);
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +00002610 Str = "0x" + to_hexString(e->e_version);
Hemant Kulkarnif84cda72016-02-11 03:41:34 +00002611 printFields(OS, "Version:", Str);
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +00002612 Str = "0x" + to_hexString(e->e_entry);
Hemant Kulkarnif84cda72016-02-11 03:41:34 +00002613 printFields(OS, "Entry point address:", Str);
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +00002614 Str = to_string(e->e_phoff) + " (bytes into file)";
Hemant Kulkarnif84cda72016-02-11 03:41:34 +00002615 printFields(OS, "Start of program headers:", Str);
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +00002616 Str = to_string(e->e_shoff) + " (bytes into file)";
Hemant Kulkarnif84cda72016-02-11 03:41:34 +00002617 printFields(OS, "Start of section headers:", Str);
Simon Atanasyan19932542018-10-25 05:39:27 +00002618 std::string ElfFlags;
2619 if (e->e_machine == EM_MIPS)
2620 ElfFlags =
2621 printFlags(e->e_flags, makeArrayRef(ElfHeaderMipsFlags),
2622 unsigned(ELF::EF_MIPS_ARCH), unsigned(ELF::EF_MIPS_ABI),
2623 unsigned(ELF::EF_MIPS_MACH));
2624 else if (e->e_machine == EM_RISCV)
2625 ElfFlags = printFlags(e->e_flags, makeArrayRef(ElfHeaderRISCVFlags));
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +00002626 Str = "0x" + to_hexString(e->e_flags);
Simon Atanasyan19932542018-10-25 05:39:27 +00002627 if (!ElfFlags.empty())
2628 Str = Str + ", " + ElfFlags;
Hemant Kulkarnif84cda72016-02-11 03:41:34 +00002629 printFields(OS, "Flags:", Str);
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +00002630 Str = to_string(e->e_ehsize) + " (bytes)";
Hemant Kulkarnif84cda72016-02-11 03:41:34 +00002631 printFields(OS, "Size of this header:", Str);
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +00002632 Str = to_string(e->e_phentsize) + " (bytes)";
Hemant Kulkarnif84cda72016-02-11 03:41:34 +00002633 printFields(OS, "Size of program headers:", Str);
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +00002634 Str = to_string(e->e_phnum);
Hemant Kulkarnif84cda72016-02-11 03:41:34 +00002635 printFields(OS, "Number of program headers:", Str);
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +00002636 Str = to_string(e->e_shentsize) + " (bytes)";
Hemant Kulkarnif84cda72016-02-11 03:41:34 +00002637 printFields(OS, "Size of section headers:", Str);
George Rimar6fdac3b2018-07-18 08:19:58 +00002638 Str = getSectionHeadersNumString(Obj);
Hemant Kulkarnif84cda72016-02-11 03:41:34 +00002639 printFields(OS, "Number of section headers:", Str);
George Rimar6fdac3b2018-07-18 08:19:58 +00002640 Str = getSectionHeaderTableIndexString(Obj);
Hemant Kulkarnif84cda72016-02-11 03:41:34 +00002641 printFields(OS, "Section header string table index:", Str);
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +00002642}
2643
George Rimarea39eed2017-09-14 07:32:52 +00002644namespace {
2645struct GroupMember {
2646 StringRef Name;
2647 uint64_t Index;
2648};
2649
2650struct GroupSection {
2651 StringRef Name;
James Hendersone50d9cb2019-01-17 15:34:12 +00002652 std::string Signature;
George Rimarea39eed2017-09-14 07:32:52 +00002653 uint64_t ShName;
2654 uint64_t Index;
Alexander Shaposhnikov8febe3d2018-03-12 22:40:09 +00002655 uint32_t Link;
2656 uint32_t Info;
George Rimarea39eed2017-09-14 07:32:52 +00002657 uint32_t Type;
2658 std::vector<GroupMember> Members;
2659};
2660
2661template <class ELFT>
2662std::vector<GroupSection> getGroups(const ELFFile<ELFT> *Obj) {
Rui Ueyama478d6352018-01-12 02:28:31 +00002663 using Elf_Shdr = typename ELFT::Shdr;
2664 using Elf_Sym = typename ELFT::Sym;
2665 using Elf_Word = typename ELFT::Word;
George Rimarea39eed2017-09-14 07:32:52 +00002666
2667 std::vector<GroupSection> Ret;
2668 uint64_t I = 0;
George Rimar3c0f3962017-09-14 07:26:14 +00002669 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
George Rimarea39eed2017-09-14 07:32:52 +00002670 ++I;
2671 if (Sec.sh_type != ELF::SHT_GROUP)
2672 continue;
2673
2674 const Elf_Shdr *Symtab = unwrapOrError(Obj->getSection(Sec.sh_link));
2675 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab));
2676 const Elf_Sym *Sym =
2677 unwrapOrError(Obj->template getEntry<Elf_Sym>(Symtab, Sec.sh_info));
2678 auto Data =
2679 unwrapOrError(Obj->template getSectionContentsAsArray<Elf_Word>(&Sec));
2680
2681 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
2682 StringRef Signature = StrTable.data() + Sym->st_name;
James Hendersone50d9cb2019-01-17 15:34:12 +00002683 Ret.push_back({Name,
2684 maybeDemangle(Signature),
2685 Sec.sh_name,
Alexander Shaposhnikov8febe3d2018-03-12 22:40:09 +00002686 I - 1,
2687 Sec.sh_link,
2688 Sec.sh_info,
James Hendersone50d9cb2019-01-17 15:34:12 +00002689 Data[0],
Alexander Shaposhnikov8febe3d2018-03-12 22:40:09 +00002690 {}});
George Rimarea39eed2017-09-14 07:32:52 +00002691
2692 std::vector<GroupMember> &GM = Ret.back().Members;
2693 for (uint32_t Ndx : Data.slice(1)) {
2694 auto Sec = unwrapOrError(Obj->getSection(Ndx));
2695 const StringRef Name = unwrapOrError(Obj->getSectionName(Sec));
2696 GM.push_back({Name, Ndx});
George Rimar3c0f3962017-09-14 07:26:14 +00002697 }
George Rimarc2657cd2017-09-14 07:17:04 +00002698 }
George Rimarea39eed2017-09-14 07:32:52 +00002699 return Ret;
2700}
George Rimar762abff62017-09-16 14:29:51 +00002701
2702DenseMap<uint64_t, const GroupSection *>
2703mapSectionsToGroups(ArrayRef<GroupSection> Groups) {
2704 DenseMap<uint64_t, const GroupSection *> Ret;
2705 for (const GroupSection &G : Groups)
2706 for (const GroupMember &GM : G.Members)
2707 Ret.insert({GM.Index, &G});
2708 return Ret;
2709}
2710
George Rimarea39eed2017-09-14 07:32:52 +00002711} // namespace
2712
2713template <class ELFT> void GNUStyle<ELFT>::printGroupSections(const ELFO *Obj) {
2714 std::vector<GroupSection> V = getGroups<ELFT>(Obj);
George Rimar762abff62017-09-16 14:29:51 +00002715 DenseMap<uint64_t, const GroupSection *> Map = mapSectionsToGroups(V);
George Rimarea39eed2017-09-14 07:32:52 +00002716 for (const GroupSection &G : V) {
2717 OS << "\n"
2718 << getGroupType(G.Type) << " group section ["
2719 << format_decimal(G.Index, 5) << "] `" << G.Name << "' [" << G.Signature
2720 << "] contains " << G.Members.size() << " sections:\n"
2721 << " [Index] Name\n";
George Rimar762abff62017-09-16 14:29:51 +00002722 for (const GroupMember &GM : G.Members) {
2723 const GroupSection *MainGroup = Map[GM.Index];
2724 if (MainGroup != &G) {
2725 OS.flush();
2726 errs() << "Error: section [" << format_decimal(GM.Index, 5)
2727 << "] in group section [" << format_decimal(G.Index, 5)
2728 << "] already in group section ["
2729 << format_decimal(MainGroup->Index, 5) << "]";
2730 errs().flush();
2731 continue;
2732 }
George Rimarea39eed2017-09-14 07:32:52 +00002733 OS << " [" << format_decimal(GM.Index, 5) << "] " << GM.Name << "\n";
George Rimar762abff62017-09-16 14:29:51 +00002734 }
George Rimarea39eed2017-09-14 07:32:52 +00002735 }
2736
2737 if (V.empty())
Hemant Kulkarni206ba842016-03-09 19:16:13 +00002738 OS << "There are no section groups in this file.\n";
2739}
2740
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +00002741template <class ELFT>
Hemant Kulkarnic030f232016-03-15 17:25:31 +00002742void GNUStyle<ELFT>::printRelocation(const ELFO *Obj, const Elf_Shdr *SymTab,
2743 const Elf_Rela &R, bool IsRela) {
George Rimar1206f5a2019-01-30 15:39:05 +00002744 const Elf_Sym *Sym = unwrapOrError(Obj->getRelocationSymbol(&R, SymTab));
2745 std::string TargetName;
Hemant Kulkarnic030f232016-03-15 17:25:31 +00002746 if (Sym && Sym->getType() == ELF::STT_SECTION) {
2747 const Elf_Shdr *Sec = unwrapOrError(
2748 Obj->getSection(Sym, SymTab, this->dumper()->getShndxTable()));
2749 TargetName = unwrapOrError(Obj->getSectionName(Sec));
2750 } else if (Sym) {
Jake Ehrlich0f440d82018-06-28 21:07:34 +00002751 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTab));
Xing GUOeec32062019-03-12 14:30:13 +00002752 TargetName = this->dumper()->getFullSymbolName(
2753 Sym, StrTable, SymTab->sh_type == SHT_DYNSYM /* IsDynamic */);
Hemant Kulkarnic030f232016-03-15 17:25:31 +00002754 }
James Henderson814ab372019-03-29 11:47:19 +00002755 printRelocation(Obj, Sym, TargetName, R, IsRela);
2756}
Hemant Kulkarnic030f232016-03-15 17:25:31 +00002757
James Henderson814ab372019-03-29 11:47:19 +00002758template <class ELFT>
2759void GNUStyle<ELFT>::printRelocation(const ELFO *Obj, const Elf_Sym *Sym,
2760 StringRef SymbolName, const Elf_Rela &R,
2761 bool IsRela) {
2762 // First two fields are bit width dependent. The rest of them are fixed width.
2763 unsigned Bias = ELFT::Is64Bits ? 8 : 0;
2764 Field Fields[5] = {0, 10 + Bias, 19 + 2 * Bias, 42 + 2 * Bias, 53 + 2 * Bias};
George Rimar4b4899b2019-01-30 14:08:55 +00002765 unsigned Width = ELFT::Is64Bits ? 16 : 8;
James Henderson814ab372019-03-29 11:47:19 +00002766
George Rimar4b4899b2019-01-30 14:08:55 +00002767 Fields[0].Str = to_string(format_hex_no_prefix(R.r_offset, Width));
2768 Fields[1].Str = to_string(format_hex_no_prefix(R.r_info, Width));
James Henderson814ab372019-03-29 11:47:19 +00002769
2770 SmallString<32> RelocName;
2771 Obj->getRelocationTypeName(R.getType(Obj->isMips64EL()), RelocName);
2772 Fields[2].Str = RelocName.c_str();
2773
2774 if (Sym && (!SymbolName.empty() || Sym->getValue() != 0))
George Rimar4b4899b2019-01-30 14:08:55 +00002775 Fields[3].Str = to_string(format_hex_no_prefix(Sym->getValue(), Width));
James Henderson814ab372019-03-29 11:47:19 +00002776
2777 Fields[4].Str = SymbolName;
2778 for (const Field &F : Fields)
George Rimar4b4899b2019-01-30 14:08:55 +00002779 printField(F);
2780
2781 std::string Addend;
James Hendersonb41130b2019-03-08 13:22:05 +00002782 if (IsRela) {
2783 int64_t RelAddend = R.r_addend;
James Henderson814ab372019-03-29 11:47:19 +00002784 if (!SymbolName.empty()) {
James Hendersonb41130b2019-03-08 13:22:05 +00002785 if (R.r_addend < 0) {
2786 Addend = " - ";
2787 RelAddend = std::abs(RelAddend);
2788 } else
2789 Addend = " + ";
2790 }
Hemant Kulkarnic030f232016-03-15 17:25:31 +00002791
James Hendersonb41130b2019-03-08 13:22:05 +00002792 Addend += to_hexString(RelAddend, false);
2793 }
George Rimar1206f5a2019-01-30 15:39:05 +00002794 OS << Addend << "\n";
Hemant Kulkarnia79c7982016-03-29 02:41:49 +00002795}
2796
Jake Ehrlich0f440d82018-06-28 21:07:34 +00002797template <class ELFT> void GNUStyle<ELFT>::printRelocHeader(unsigned SType) {
2798 bool IsRela = SType == ELF::SHT_RELA || SType == ELF::SHT_ANDROID_RELA;
2799 bool IsRelr = SType == ELF::SHT_RELR || SType == ELF::SHT_ANDROID_RELR;
2800 if (ELFT::Is64Bits)
2801 OS << " ";
2802 else
2803 OS << " ";
2804 if (IsRelr && opts::RawRelr)
2805 OS << "Data ";
2806 else
2807 OS << "Offset";
2808 if (ELFT::Is64Bits)
2809 OS << " Info Type"
Hemant Kulkarnia79c7982016-03-29 02:41:49 +00002810 << " Symbol's Value Symbol's Name";
2811 else
Jake Ehrlich0f440d82018-06-28 21:07:34 +00002812 OS << " Info Type Sym. Value Symbol's Name";
Hemant Kulkarnic030f232016-03-15 17:25:31 +00002813 if (IsRela)
Jake Ehrlich0f440d82018-06-28 21:07:34 +00002814 OS << " + Addend";
Hemant Kulkarnic030f232016-03-15 17:25:31 +00002815 OS << "\n";
2816}
2817
2818template <class ELFT> void GNUStyle<ELFT>::printRelocations(const ELFO *Obj) {
2819 bool HasRelocSections = false;
Rafael Espindola25be8c82016-11-02 14:10:57 +00002820 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
George Rimar9e88a262019-05-14 14:22:44 +00002821 if (Sec.sh_type != ELF::SHT_REL && Sec.sh_type != ELF::SHT_RELA &&
2822 Sec.sh_type != ELF::SHT_RELR && Sec.sh_type != ELF::SHT_ANDROID_REL &&
Jake Ehrlich0f440d82018-06-28 21:07:34 +00002823 Sec.sh_type != ELF::SHT_ANDROID_RELA &&
2824 Sec.sh_type != ELF::SHT_ANDROID_RELR)
Hemant Kulkarnic030f232016-03-15 17:25:31 +00002825 continue;
2826 HasRelocSections = true;
2827 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
2828 unsigned Entries = Sec.getEntityCount();
Peter Collingbournecf017ad2018-06-07 00:02:07 +00002829 std::vector<Elf_Rela> AndroidRelas;
2830 if (Sec.sh_type == ELF::SHT_ANDROID_REL ||
2831 Sec.sh_type == ELF::SHT_ANDROID_RELA) {
2832 // Android's packed relocation section needs to be unpacked first
2833 // to get the actual number of entries.
2834 AndroidRelas = unwrapOrError(Obj->android_relas(&Sec));
2835 Entries = AndroidRelas.size();
2836 }
Jake Ehrlich0f440d82018-06-28 21:07:34 +00002837 std::vector<Elf_Rela> RelrRelas;
2838 if (!opts::RawRelr && (Sec.sh_type == ELF::SHT_RELR ||
2839 Sec.sh_type == ELF::SHT_ANDROID_RELR)) {
2840 // .relr.dyn relative relocation section needs to be unpacked first
2841 // to get the actual number of entries.
2842 Elf_Relr_Range Relrs = unwrapOrError(Obj->relrs(&Sec));
2843 RelrRelas = unwrapOrError(Obj->decode_relrs(Relrs));
2844 Entries = RelrRelas.size();
2845 }
Hemant Kulkarnic030f232016-03-15 17:25:31 +00002846 uintX_t Offset = Sec.sh_offset;
2847 OS << "\nRelocation section '" << Name << "' at offset 0x"
2848 << to_hexString(Offset, false) << " contains " << Entries
2849 << " entries:\n";
Jake Ehrlich0f440d82018-06-28 21:07:34 +00002850 printRelocHeader(Sec.sh_type);
Hemant Kulkarnic030f232016-03-15 17:25:31 +00002851 const Elf_Shdr *SymTab = unwrapOrError(Obj->getSection(Sec.sh_link));
Peter Collingbourne689e6c052017-10-25 03:37:12 +00002852 switch (Sec.sh_type) {
2853 case ELF::SHT_REL:
Rafael Espindola354680a2016-11-03 19:07:15 +00002854 for (const auto &R : unwrapOrError(Obj->rels(&Sec))) {
Hemant Kulkarnic030f232016-03-15 17:25:31 +00002855 Elf_Rela Rela;
2856 Rela.r_offset = R.r_offset;
2857 Rela.r_info = R.r_info;
2858 Rela.r_addend = 0;
2859 printRelocation(Obj, SymTab, Rela, false);
2860 }
Peter Collingbourne689e6c052017-10-25 03:37:12 +00002861 break;
2862 case ELF::SHT_RELA:
Rafael Espindola354680a2016-11-03 19:07:15 +00002863 for (const auto &R : unwrapOrError(Obj->relas(&Sec)))
Hemant Kulkarnic030f232016-03-15 17:25:31 +00002864 printRelocation(Obj, SymTab, R, true);
Peter Collingbourne689e6c052017-10-25 03:37:12 +00002865 break;
Jake Ehrlich0f440d82018-06-28 21:07:34 +00002866 case ELF::SHT_RELR:
2867 case ELF::SHT_ANDROID_RELR:
2868 if (opts::RawRelr)
2869 for (const auto &R : unwrapOrError(Obj->relrs(&Sec)))
2870 OS << to_string(format_hex_no_prefix(R, ELFT::Is64Bits ? 16 : 8))
2871 << "\n";
2872 else
2873 for (const auto &R : RelrRelas)
2874 printRelocation(Obj, SymTab, R, false);
2875 break;
Peter Collingbourne689e6c052017-10-25 03:37:12 +00002876 case ELF::SHT_ANDROID_REL:
2877 case ELF::SHT_ANDROID_RELA:
Peter Collingbournecf017ad2018-06-07 00:02:07 +00002878 for (const auto &R : AndroidRelas)
Peter Collingbourne689e6c052017-10-25 03:37:12 +00002879 printRelocation(Obj, SymTab, R, Sec.sh_type == ELF::SHT_ANDROID_RELA);
2880 break;
Hemant Kulkarnic030f232016-03-15 17:25:31 +00002881 }
2882 }
2883 if (!HasRelocSections)
2884 OS << "\nThere are no relocations in this file.\n";
2885}
2886
Matt Davis7a24dbd2019-02-27 18:39:17 +00002887// Print the offset of a particular section from anyone of the ranges:
2888// [SHT_LOOS, SHT_HIOS], [SHT_LOPROC, SHT_HIPROC], [SHT_LOUSER, SHT_HIUSER].
2889// If 'Type' does not fall within any of those ranges, then a string is
2890// returned as '<unknown>' followed by the type value.
2891static std::string getSectionTypeOffsetString(unsigned Type) {
2892 if (Type >= SHT_LOOS && Type <= SHT_HIOS)
2893 return "LOOS+0x" + to_hexString(Type - SHT_LOOS);
2894 else if (Type >= SHT_LOPROC && Type <= SHT_HIPROC)
2895 return "LOPROC+0x" + to_hexString(Type - SHT_LOPROC);
2896 else if (Type >= SHT_LOUSER && Type <= SHT_HIUSER)
2897 return "LOUSER+0x" + to_hexString(Type - SHT_LOUSER);
2898 return "0x" + to_hexString(Type) + ": <unknown>";
2899}
2900
2901static std::string getSectionTypeString(unsigned Arch, unsigned Type) {
Hemant Kulkarnic030f232016-03-15 17:25:31 +00002902 using namespace ELF;
Eugene Zelenko416e0592017-06-09 21:41:54 +00002903
Hemant Kulkarnic030f232016-03-15 17:25:31 +00002904 switch (Arch) {
2905 case EM_ARM:
2906 switch (Type) {
2907 case SHT_ARM_EXIDX:
2908 return "ARM_EXIDX";
2909 case SHT_ARM_PREEMPTMAP:
2910 return "ARM_PREEMPTMAP";
2911 case SHT_ARM_ATTRIBUTES:
2912 return "ARM_ATTRIBUTES";
2913 case SHT_ARM_DEBUGOVERLAY:
2914 return "ARM_DEBUGOVERLAY";
2915 case SHT_ARM_OVERLAYSECTION:
2916 return "ARM_OVERLAYSECTION";
2917 }
Ryan Prichard0c20b5b2018-10-26 23:01:54 +00002918 break;
Hemant Kulkarnic030f232016-03-15 17:25:31 +00002919 case EM_X86_64:
2920 switch (Type) {
2921 case SHT_X86_64_UNWIND:
2922 return "X86_64_UNWIND";
2923 }
Ryan Prichard0c20b5b2018-10-26 23:01:54 +00002924 break;
Hemant Kulkarnic030f232016-03-15 17:25:31 +00002925 case EM_MIPS:
2926 case EM_MIPS_RS3_LE:
2927 switch (Type) {
2928 case SHT_MIPS_REGINFO:
2929 return "MIPS_REGINFO";
2930 case SHT_MIPS_OPTIONS:
2931 return "MIPS_OPTIONS";
Fangrui Song8443e882019-02-21 11:35:41 +00002932 case SHT_MIPS_DWARF:
2933 return "MIPS_DWARF";
Hemant Kulkarnic030f232016-03-15 17:25:31 +00002934 case SHT_MIPS_ABIFLAGS:
2935 return "MIPS_ABIFLAGS";
2936 }
Ryan Prichard0c20b5b2018-10-26 23:01:54 +00002937 break;
Hemant Kulkarnic030f232016-03-15 17:25:31 +00002938 }
2939 switch (Type) {
2940 case SHT_NULL:
2941 return "NULL";
2942 case SHT_PROGBITS:
2943 return "PROGBITS";
2944 case SHT_SYMTAB:
2945 return "SYMTAB";
2946 case SHT_STRTAB:
2947 return "STRTAB";
2948 case SHT_RELA:
2949 return "RELA";
2950 case SHT_HASH:
2951 return "HASH";
2952 case SHT_DYNAMIC:
2953 return "DYNAMIC";
2954 case SHT_NOTE:
2955 return "NOTE";
2956 case SHT_NOBITS:
2957 return "NOBITS";
2958 case SHT_REL:
2959 return "REL";
2960 case SHT_SHLIB:
2961 return "SHLIB";
2962 case SHT_DYNSYM:
2963 return "DYNSYM";
2964 case SHT_INIT_ARRAY:
2965 return "INIT_ARRAY";
2966 case SHT_FINI_ARRAY:
2967 return "FINI_ARRAY";
2968 case SHT_PREINIT_ARRAY:
2969 return "PREINIT_ARRAY";
2970 case SHT_GROUP:
2971 return "GROUP";
2972 case SHT_SYMTAB_SHNDX:
2973 return "SYMTAB SECTION INDICES";
Matt Davis7a24dbd2019-02-27 18:39:17 +00002974 case SHT_ANDROID_REL:
2975 return "ANDROID_REL";
2976 case SHT_ANDROID_RELA:
2977 return "ANDROID_RELA";
Jake Ehrlich0f440d82018-06-28 21:07:34 +00002978 case SHT_RELR:
2979 case SHT_ANDROID_RELR:
2980 return "RELR";
Peter Collingbournef0e26e72017-06-14 18:52:12 +00002981 case SHT_LLVM_ODRTAB:
2982 return "LLVM_ODRTAB";
Saleem Abdulrasoolb36fbbc2018-01-30 16:29:29 +00002983 case SHT_LLVM_LINKER_OPTIONS:
2984 return "LLVM_LINKER_OPTIONS";
Michael J. Spencerae6eeae2018-06-02 16:33:01 +00002985 case SHT_LLVM_CALL_GRAPH_PROFILE:
2986 return "LLVM_CALL_GRAPH_PROFILE";
Peter Collingbourne3e227332018-07-17 22:17:18 +00002987 case SHT_LLVM_ADDRSIG:
2988 return "LLVM_ADDRSIG";
Ben Dunbobbin1d165152019-05-17 03:44:15 +00002989 case SHT_LLVM_DEPENDENT_LIBRARIES:
2990 return "LLVM_DEPENDENT_LIBRARIES";
Hemant Kulkarnic030f232016-03-15 17:25:31 +00002991 // FIXME: Parse processor specific GNU attributes
2992 case SHT_GNU_ATTRIBUTES:
2993 return "ATTRIBUTES";
2994 case SHT_GNU_HASH:
2995 return "GNU_HASH";
2996 case SHT_GNU_verdef:
2997 return "VERDEF";
2998 case SHT_GNU_verneed:
2999 return "VERNEED";
3000 case SHT_GNU_versym:
3001 return "VERSYM";
3002 default:
Matt Davis7a24dbd2019-02-27 18:39:17 +00003003 return getSectionTypeOffsetString(Type);
Hemant Kulkarnic030f232016-03-15 17:25:31 +00003004 }
3005 return "";
3006}
3007
Jordan Rupprechtdbf552c2018-11-12 18:02:38 +00003008template <class ELFT>
George Rimard6df7de2019-06-14 11:56:10 +00003009static StringRef getSectionName(const typename ELFT::Shdr &Sec,
George Rimara1370872019-07-16 11:07:30 +00003010 const ELFObjectFile<ELFT> &ElfObj,
George Rimard6df7de2019-06-14 11:56:10 +00003011 ArrayRef<typename ELFT::Shdr> Sections) {
George Rimara1370872019-07-16 11:07:30 +00003012 const ELFFile<ELFT> &Obj = *ElfObj.getELFFile();
George Rimard6df7de2019-06-14 11:56:10 +00003013 uint32_t Index = Obj.getHeader()->e_shstrndx;
3014 if (Index == ELF::SHN_XINDEX)
3015 Index = Sections[0].sh_link;
3016 if (!Index) // no section string table.
3017 return "";
George Rimara1370872019-07-16 11:07:30 +00003018 // TODO: Test a case when the sh_link of the section with index 0 is broken.
George Rimard6df7de2019-06-14 11:56:10 +00003019 if (Index >= Sections.size())
George Rimara1370872019-07-16 11:07:30 +00003020 reportError(ElfObj.getFileName(),
3021 createError("section header string table index " +
3022 Twine(Index) + " does not exist"));
George Rimard6df7de2019-06-14 11:56:10 +00003023 StringRef Data = toStringRef(unwrapOrError(
3024 Obj.template getSectionContentsAsArray<uint8_t>(&Sections[Index])));
3025 return unwrapOrError(Obj.getSectionName(&Sec, Data));
3026}
3027
3028template <class ELFT>
Jordan Rupprechtdbf552c2018-11-12 18:02:38 +00003029void GNUStyle<ELFT>::printSectionHeaders(const ELFO *Obj) {
George Rimar4b4899b2019-01-30 14:08:55 +00003030 unsigned Bias = ELFT::Is64Bits ? 0 : 8;
George Rimara2b553b2018-07-19 14:52:57 +00003031 ArrayRef<Elf_Shdr> Sections = unwrapOrError(Obj->sections());
3032 OS << "There are " << to_string(Sections.size())
Hemant Kulkarnic030f232016-03-15 17:25:31 +00003033 << " section headers, starting at offset "
3034 << "0x" << to_hexString(Obj->getHeader()->e_shoff, false) << ":\n\n";
3035 OS << "Section Headers:\n";
George Rimar4b4899b2019-01-30 14:08:55 +00003036 Field Fields[11] = {
3037 {"[Nr]", 2}, {"Name", 7}, {"Type", 25},
3038 {"Address", 41}, {"Off", 58 - Bias}, {"Size", 65 - Bias},
3039 {"ES", 72 - Bias}, {"Flg", 75 - Bias}, {"Lk", 79 - Bias},
3040 {"Inf", 82 - Bias}, {"Al", 86 - Bias}};
3041 for (auto &F : Fields)
3042 printField(F);
Hemant Kulkarnic030f232016-03-15 17:25:31 +00003043 OS << "\n";
3044
George Rimara1370872019-07-16 11:07:30 +00003045 const ELFObjectFile<ELFT> *ElfObj = this->dumper()->getElfObject();
George Rimar4b4899b2019-01-30 14:08:55 +00003046 size_t SectionIndex = 0;
George Rimara2b553b2018-07-19 14:52:57 +00003047 for (const Elf_Shdr &Sec : Sections) {
George Rimar4b4899b2019-01-30 14:08:55 +00003048 Fields[0].Str = to_string(SectionIndex);
George Rimara1370872019-07-16 11:07:30 +00003049 Fields[1].Str = getSectionName(Sec, *ElfObj, Sections);
George Rimar4b4899b2019-01-30 14:08:55 +00003050 Fields[2].Str =
3051 getSectionTypeString(Obj->getHeader()->e_machine, Sec.sh_type);
3052 Fields[3].Str =
3053 to_string(format_hex_no_prefix(Sec.sh_addr, ELFT::Is64Bits ? 16 : 8));
3054 Fields[4].Str = to_string(format_hex_no_prefix(Sec.sh_offset, 6));
3055 Fields[5].Str = to_string(format_hex_no_prefix(Sec.sh_size, 6));
3056 Fields[6].Str = to_string(format_hex_no_prefix(Sec.sh_entsize, 2));
3057 Fields[7].Str = getGNUFlags(Sec.sh_flags);
3058 Fields[8].Str = to_string(Sec.sh_link);
3059 Fields[9].Str = to_string(Sec.sh_info);
3060 Fields[10].Str = to_string(Sec.sh_addralign);
3061
Hemant Kulkarnic030f232016-03-15 17:25:31 +00003062 OS.PadToColumn(Fields[0].Column);
3063 OS << "[" << right_justify(Fields[0].Str, 2) << "]";
3064 for (int i = 1; i < 7; i++)
3065 printField(Fields[i]);
3066 OS.PadToColumn(Fields[7].Column);
3067 OS << right_justify(Fields[7].Str, 3);
3068 OS.PadToColumn(Fields[8].Column);
3069 OS << right_justify(Fields[8].Str, 2);
3070 OS.PadToColumn(Fields[9].Column);
3071 OS << right_justify(Fields[9].Str, 3);
3072 OS.PadToColumn(Fields[10].Column);
3073 OS << right_justify(Fields[10].Str, 2);
3074 OS << "\n";
3075 ++SectionIndex;
3076 }
3077 OS << "Key to Flags:\n"
3078 << " W (write), A (alloc), X (execute), M (merge), S (strings), l "
3079 "(large)\n"
3080 << " I (info), L (link order), G (group), T (TLS), E (exclude),\
3081 x (unknown)\n"
3082 << " O (extra OS processing required) o (OS specific),\
3083 p (processor specific)\n";
3084}
3085
Hemant Kulkarnia11fbe12016-03-21 17:18:23 +00003086template <class ELFT>
3087void GNUStyle<ELFT>::printSymtabMessage(const ELFO *Obj, StringRef Name,
3088 size_t Entries) {
Eugene Zelenko416e0592017-06-09 21:41:54 +00003089 if (!Name.empty())
Hemant Kulkarnia11fbe12016-03-21 17:18:23 +00003090 OS << "\nSymbol table '" << Name << "' contains " << Entries
3091 << " entries:\n";
3092 else
3093 OS << "\n Symbol table for image:\n";
3094
3095 if (ELFT::Is64Bits)
3096 OS << " Num: Value Size Type Bind Vis Ndx Name\n";
3097 else
3098 OS << " Num: Value Size Type Bind Vis Ndx Name\n";
3099}
3100
3101template <class ELFT>
3102std::string GNUStyle<ELFT>::getSymbolSectionNdx(const ELFO *Obj,
3103 const Elf_Sym *Symbol,
3104 const Elf_Sym *FirstSym) {
3105 unsigned SectionIndex = Symbol->st_shndx;
3106 switch (SectionIndex) {
3107 case ELF::SHN_UNDEF:
3108 return "UND";
3109 case ELF::SHN_ABS:
3110 return "ABS";
3111 case ELF::SHN_COMMON:
3112 return "COM";
3113 case ELF::SHN_XINDEX:
Eugene Leviant49187382019-04-15 11:21:47 +00003114 return to_string(
3115 format_decimal(unwrapOrError(object::getExtendedSymbolTableIndex<ELFT>(
3116 Symbol, FirstSym, this->dumper()->getShndxTable())),
3117 3));
Hemant Kulkarnia11fbe12016-03-21 17:18:23 +00003118 default:
3119 // Find if:
3120 // Processor specific
3121 if (SectionIndex >= ELF::SHN_LOPROC && SectionIndex <= ELF::SHN_HIPROC)
3122 return std::string("PRC[0x") +
3123 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]";
3124 // OS specific
3125 if (SectionIndex >= ELF::SHN_LOOS && SectionIndex <= ELF::SHN_HIOS)
3126 return std::string("OS[0x") +
3127 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]";
3128 // Architecture reserved:
3129 if (SectionIndex >= ELF::SHN_LORESERVE &&
3130 SectionIndex <= ELF::SHN_HIRESERVE)
3131 return std::string("RSV[0x") +
3132 to_string(format_hex_no_prefix(SectionIndex, 4)) + "]";
3133 // A normal section with an index
3134 return to_string(format_decimal(SectionIndex, 3));
3135 }
3136}
3137
3138template <class ELFT>
3139void GNUStyle<ELFT>::printSymbol(const ELFO *Obj, const Elf_Sym *Symbol,
3140 const Elf_Sym *FirstSym, StringRef StrTable,
3141 bool IsDynamic) {
3142 static int Idx = 0;
3143 static bool Dynamic = true;
Hemant Kulkarnia11fbe12016-03-21 17:18:23 +00003144
3145 // If this function was called with a different value from IsDynamic
3146 // from last call, happens when we move from dynamic to static symbol
3147 // table, "Num" field should be reset.
3148 if (!Dynamic != !IsDynamic) {
3149 Idx = 0;
3150 Dynamic = false;
3151 }
George Rimar4b4899b2019-01-30 14:08:55 +00003152
3153 unsigned Bias = ELFT::Is64Bits ? 8 : 0;
Hemant Kulkarnia11fbe12016-03-21 17:18:23 +00003154 Field Fields[8] = {0, 8, 17 + Bias, 23 + Bias,
3155 31 + Bias, 38 + Bias, 47 + Bias, 51 + Bias};
George Rimar4b4899b2019-01-30 14:08:55 +00003156 Fields[0].Str = to_string(format_decimal(Idx++, 6)) + ":";
3157 Fields[1].Str = to_string(
3158 format_hex_no_prefix(Symbol->st_value, ELFT::Is64Bits ? 16 : 8));
3159 Fields[2].Str = to_string(format_decimal(Symbol->st_size, 5));
3160
Hemant Kulkarnia11fbe12016-03-21 17:18:23 +00003161 unsigned char SymbolType = Symbol->getType();
3162 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU &&
3163 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS)
George Rimar4b4899b2019-01-30 14:08:55 +00003164 Fields[3].Str = printEnum(SymbolType, makeArrayRef(AMDGPUSymbolTypes));
Hemant Kulkarnia11fbe12016-03-21 17:18:23 +00003165 else
George Rimar4b4899b2019-01-30 14:08:55 +00003166 Fields[3].Str = printEnum(SymbolType, makeArrayRef(ElfSymbolTypes));
3167
3168 Fields[4].Str =
3169 printEnum(Symbol->getBinding(), makeArrayRef(ElfSymbolBindings));
3170 Fields[5].Str =
3171 printEnum(Symbol->getVisibility(), makeArrayRef(ElfSymbolVisibilities));
3172 Fields[6].Str = getSymbolSectionNdx(Obj, Symbol, FirstSym);
3173 Fields[7].Str =
3174 this->dumper()->getFullSymbolName(Symbol, StrTable, IsDynamic);
Hemant Kulkarnia11fbe12016-03-21 17:18:23 +00003175 for (auto &Entry : Fields)
3176 printField(Entry);
3177 OS << "\n";
3178}
George Rimar4b4899b2019-01-30 14:08:55 +00003179
Hemant Kulkarnia6ee9fd2016-11-23 18:04:23 +00003180template <class ELFT>
3181void GNUStyle<ELFT>::printHashedSymbol(const ELFO *Obj, const Elf_Sym *FirstSym,
3182 uint32_t Sym, StringRef StrTable,
3183 uint32_t Bucket) {
George Rimar1206f5a2019-01-30 15:39:05 +00003184 unsigned Bias = ELFT::Is64Bits ? 8 : 0;
Hemant Kulkarnia6ee9fd2016-11-23 18:04:23 +00003185 Field Fields[9] = {0, 6, 11, 20 + Bias, 25 + Bias,
3186 34 + Bias, 41 + Bias, 49 + Bias, 53 + Bias};
George Rimar4b4899b2019-01-30 14:08:55 +00003187 Fields[0].Str = to_string(format_decimal(Sym, 5));
3188 Fields[1].Str = to_string(format_decimal(Bucket, 3)) + ":";
Hemant Kulkarnia6ee9fd2016-11-23 18:04:23 +00003189
3190 const auto Symbol = FirstSym + Sym;
George Rimar1206f5a2019-01-30 15:39:05 +00003191 Fields[2].Str = to_string(
George Rimarce2ef282019-07-19 10:15:03 +00003192 format_hex_no_prefix(Symbol->st_value, ELFT::Is64Bits ? 16 : 8));
George Rimar4b4899b2019-01-30 14:08:55 +00003193 Fields[3].Str = to_string(format_decimal(Symbol->st_size, 5));
3194
Hemant Kulkarnia6ee9fd2016-11-23 18:04:23 +00003195 unsigned char SymbolType = Symbol->getType();
3196 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU &&
3197 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS)
George Rimar4b4899b2019-01-30 14:08:55 +00003198 Fields[4].Str = printEnum(SymbolType, makeArrayRef(AMDGPUSymbolTypes));
Hemant Kulkarnia6ee9fd2016-11-23 18:04:23 +00003199 else
George Rimar4b4899b2019-01-30 14:08:55 +00003200 Fields[4].Str = printEnum(SymbolType, makeArrayRef(ElfSymbolTypes));
3201
3202 Fields[5].Str =
3203 printEnum(Symbol->getBinding(), makeArrayRef(ElfSymbolBindings));
3204 Fields[6].Str =
3205 printEnum(Symbol->getVisibility(), makeArrayRef(ElfSymbolVisibilities));
3206 Fields[7].Str = getSymbolSectionNdx(Obj, Symbol, FirstSym);
3207 Fields[8].Str = this->dumper()->getFullSymbolName(Symbol, StrTable, true);
3208
Hemant Kulkarnia6ee9fd2016-11-23 18:04:23 +00003209 for (auto &Entry : Fields)
3210 printField(Entry);
3211 OS << "\n";
3212}
Hemant Kulkarnia11fbe12016-03-21 17:18:23 +00003213
Hemant Kulkarnic030f232016-03-15 17:25:31 +00003214template <class ELFT>
James Henderson21ed8682019-01-23 16:15:39 +00003215void GNUStyle<ELFT>::printSymbols(const ELFO *Obj, bool PrintSymbols,
3216 bool PrintDynamicSymbols) {
3217 if (!PrintSymbols && !PrintDynamicSymbols)
3218 return;
3219 // GNU readelf prints both the .dynsym and .symtab with --symbols.
James Henderson5fc812f2019-01-22 09:35:35 +00003220 this->dumper()->printSymbolsHelper(true);
James Henderson21ed8682019-01-23 16:15:39 +00003221 if (PrintSymbols)
3222 this->dumper()->printSymbolsHelper(false);
James Henderson5fc812f2019-01-22 09:35:35 +00003223}
3224
3225template <class ELFT> void GNUStyle<ELFT>::printHashSymbols(const ELFO *Obj) {
Eugene Zelenko416e0592017-06-09 21:41:54 +00003226 if (this->dumper()->getDynamicStringTable().empty())
Hemant Kulkarnia6ee9fd2016-11-23 18:04:23 +00003227 return;
3228 auto StringTable = this->dumper()->getDynamicStringTable();
3229 auto DynSyms = this->dumper()->dynamic_symbols();
Hemant Kulkarnia6ee9fd2016-11-23 18:04:23 +00003230
Hemant Kulkarnia6ee9fd2016-11-23 18:04:23 +00003231 // Try printing .hash
George Rimar1206f5a2019-01-30 15:39:05 +00003232 if (auto SysVHash = this->dumper()->getHashTable()) {
Hemant Kulkarnia6ee9fd2016-11-23 18:04:23 +00003233 OS << "\n Symbol table of .hash for image:\n";
3234 if (ELFT::Is64Bits)
3235 OS << " Num Buc: Value Size Type Bind Vis Ndx Name";
3236 else
3237 OS << " Num Buc: Value Size Type Bind Vis Ndx Name";
3238 OS << "\n";
3239
Hemant Kulkarnia6ee9fd2016-11-23 18:04:23 +00003240 auto Buckets = SysVHash->buckets();
3241 auto Chains = SysVHash->chains();
George Rimar1206f5a2019-01-30 15:39:05 +00003242 for (uint32_t Buc = 0; Buc < SysVHash->nbucket; Buc++) {
Hemant Kulkarnia6ee9fd2016-11-23 18:04:23 +00003243 if (Buckets[Buc] == ELF::STN_UNDEF)
3244 continue;
George Rimar1206f5a2019-01-30 15:39:05 +00003245 for (uint32_t Ch = Buckets[Buc]; Ch < SysVHash->nchain; Ch = Chains[Ch]) {
Hemant Kulkarnia6ee9fd2016-11-23 18:04:23 +00003246 if (Ch == ELF::STN_UNDEF)
3247 break;
3248 printHashedSymbol(Obj, &DynSyms[0], Ch, StringTable, Buc);
3249 }
3250 }
3251 }
3252
3253 // Try printing .gnu.hash
George Rimar1206f5a2019-01-30 15:39:05 +00003254 if (auto GnuHash = this->dumper()->getGnuHashTable()) {
Hemant Kulkarnia6ee9fd2016-11-23 18:04:23 +00003255 OS << "\n Symbol table of .gnu.hash for image:\n";
3256 if (ELFT::Is64Bits)
3257 OS << " Num Buc: Value Size Type Bind Vis Ndx Name";
3258 else
3259 OS << " Num Buc: Value Size Type Bind Vis Ndx Name";
3260 OS << "\n";
Hemant Kulkarnia6ee9fd2016-11-23 18:04:23 +00003261 auto Buckets = GnuHash->buckets();
George Rimar1206f5a2019-01-30 15:39:05 +00003262 for (uint32_t Buc = 0; Buc < GnuHash->nbuckets; Buc++) {
Hemant Kulkarnia6ee9fd2016-11-23 18:04:23 +00003263 if (Buckets[Buc] == ELF::STN_UNDEF)
3264 continue;
3265 uint32_t Index = Buckets[Buc];
3266 uint32_t GnuHashable = Index - GnuHash->symndx;
3267 // Print whole chain
3268 while (true) {
3269 printHashedSymbol(Obj, &DynSyms[0], Index++, StringTable, Buc);
3270 // Chain ends at symbol with stopper bit
3271 if ((GnuHash->values(DynSyms.size())[GnuHashable++] & 1) == 1)
3272 break;
3273 }
3274 }
3275 }
Hemant Kulkarnic030f232016-03-15 17:25:31 +00003276}
3277
Hemant Kulkarni966b3ac2016-03-25 16:04:48 +00003278static inline std::string printPhdrFlags(unsigned Flag) {
3279 std::string Str;
3280 Str = (Flag & PF_R) ? "R" : " ";
3281 Str += (Flag & PF_W) ? "W" : " ";
3282 Str += (Flag & PF_X) ? "E" : " ";
3283 return Str;
3284}
3285
3286// SHF_TLS sections are only in PT_TLS, PT_LOAD or PT_GNU_RELRO
3287// PT_TLS must only have SHF_TLS sections
3288template <class ELFT>
3289bool GNUStyle<ELFT>::checkTLSSections(const Elf_Phdr &Phdr,
3290 const Elf_Shdr &Sec) {
3291 return (((Sec.sh_flags & ELF::SHF_TLS) &&
3292 ((Phdr.p_type == ELF::PT_TLS) || (Phdr.p_type == ELF::PT_LOAD) ||
3293 (Phdr.p_type == ELF::PT_GNU_RELRO))) ||
3294 (!(Sec.sh_flags & ELF::SHF_TLS) && Phdr.p_type != ELF::PT_TLS));
3295}
3296
3297// Non-SHT_NOBITS must have its offset inside the segment
3298// Only non-zero section can be at end of segment
3299template <class ELFT>
3300bool GNUStyle<ELFT>::checkoffsets(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) {
3301 if (Sec.sh_type == ELF::SHT_NOBITS)
3302 return true;
3303 bool IsSpecial =
3304 (Sec.sh_type == ELF::SHT_NOBITS) && ((Sec.sh_flags & ELF::SHF_TLS) != 0);
3305 // .tbss is special, it only has memory in PT_TLS and has NOBITS properties
3306 auto SectionSize =
3307 (IsSpecial && Phdr.p_type != ELF::PT_TLS) ? 0 : Sec.sh_size;
3308 if (Sec.sh_offset >= Phdr.p_offset)
3309 return ((Sec.sh_offset + SectionSize <= Phdr.p_filesz + Phdr.p_offset)
George Rimar9e88a262019-05-14 14:22:44 +00003310 /*only non-zero sized sections at end*/
3311 && (Sec.sh_offset + 1 <= Phdr.p_offset + Phdr.p_filesz));
Hemant Kulkarni966b3ac2016-03-25 16:04:48 +00003312 return false;
3313}
3314
3315// SHF_ALLOC must have VMA inside segment
3316// Only non-zero section can be at end of segment
3317template <class ELFT>
3318bool GNUStyle<ELFT>::checkVMA(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) {
3319 if (!(Sec.sh_flags & ELF::SHF_ALLOC))
3320 return true;
3321 bool IsSpecial =
3322 (Sec.sh_type == ELF::SHT_NOBITS) && ((Sec.sh_flags & ELF::SHF_TLS) != 0);
3323 // .tbss is special, it only has memory in PT_TLS and has NOBITS properties
3324 auto SectionSize =
3325 (IsSpecial && Phdr.p_type != ELF::PT_TLS) ? 0 : Sec.sh_size;
3326 if (Sec.sh_addr >= Phdr.p_vaddr)
3327 return ((Sec.sh_addr + SectionSize <= Phdr.p_vaddr + Phdr.p_memsz) &&
3328 (Sec.sh_addr + 1 <= Phdr.p_vaddr + Phdr.p_memsz));
3329 return false;
3330}
3331
3332// No section with zero size must be at start or end of PT_DYNAMIC
3333template <class ELFT>
3334bool GNUStyle<ELFT>::checkPTDynamic(const Elf_Phdr &Phdr, const Elf_Shdr &Sec) {
3335 if (Phdr.p_type != ELF::PT_DYNAMIC || Sec.sh_size != 0 || Phdr.p_memsz == 0)
3336 return true;
3337 // Is section within the phdr both based on offset and VMA ?
3338 return ((Sec.sh_type == ELF::SHT_NOBITS) ||
3339 (Sec.sh_offset > Phdr.p_offset &&
3340 Sec.sh_offset < Phdr.p_offset + Phdr.p_filesz)) &&
3341 (!(Sec.sh_flags & ELF::SHF_ALLOC) ||
3342 (Sec.sh_addr > Phdr.p_vaddr && Sec.sh_addr < Phdr.p_memsz));
3343}
3344
3345template <class ELFT>
Matt Davis50ca8ed2019-02-01 18:51:10 +00003346void GNUStyle<ELFT>::printProgramHeaders(
3347 const ELFO *Obj, bool PrintProgramHeaders,
3348 cl::boolOrDefault PrintSectionMapping) {
3349 if (PrintProgramHeaders)
3350 printProgramHeaders(Obj);
3351
3352 // Display the section mapping along with the program headers, unless
3353 // -section-mapping is explicitly set to false.
3354 if (PrintSectionMapping != cl::BOU_FALSE)
3355 printSectionMapping(Obj);
3356}
3357
3358template <class ELFT>
Hemant Kulkarni966b3ac2016-03-25 16:04:48 +00003359void GNUStyle<ELFT>::printProgramHeaders(const ELFO *Obj) {
Hemant Kulkarni2e3254e2016-03-29 14:20:20 +00003360 unsigned Bias = ELFT::Is64Bits ? 8 : 0;
Hemant Kulkarni966b3ac2016-03-25 16:04:48 +00003361 const Elf_Ehdr *Header = Obj->getHeader();
3362 Field Fields[8] = {2, 17, 26, 37 + Bias,
3363 48 + Bias, 56 + Bias, 64 + Bias, 68 + Bias};
3364 OS << "\nElf file type is "
3365 << printEnum(Header->e_type, makeArrayRef(ElfObjectFileType)) << "\n"
Hemant Kulkarni787c2ed2016-05-12 22:51:26 +00003366 << "Entry point " << format_hex(Header->e_entry, 3) << "\n"
Hemant Kulkarni966b3ac2016-03-25 16:04:48 +00003367 << "There are " << Header->e_phnum << " program headers,"
3368 << " starting at offset " << Header->e_phoff << "\n\n"
3369 << "Program Headers:\n";
3370 if (ELFT::Is64Bits)
3371 OS << " Type Offset VirtAddr PhysAddr "
3372 << " FileSiz MemSiz Flg Align\n";
3373 else
3374 OS << " Type Offset VirtAddr PhysAddr FileSiz "
3375 << "MemSiz Flg Align\n";
George Rimar1206f5a2019-01-30 15:39:05 +00003376
3377 unsigned Width = ELFT::Is64Bits ? 18 : 10;
3378 unsigned SizeWidth = ELFT::Is64Bits ? 8 : 7;
Rafael Espindola6a494972016-11-03 17:28:33 +00003379 for (const auto &Phdr : unwrapOrError(Obj->program_headers())) {
George Rimar4b4899b2019-01-30 14:08:55 +00003380 Fields[0].Str = getElfPtType(Header->e_machine, Phdr.p_type);
3381 Fields[1].Str = to_string(format_hex(Phdr.p_offset, 8));
3382 Fields[2].Str = to_string(format_hex(Phdr.p_vaddr, Width));
3383 Fields[3].Str = to_string(format_hex(Phdr.p_paddr, Width));
3384 Fields[4].Str = to_string(format_hex(Phdr.p_filesz, SizeWidth));
3385 Fields[5].Str = to_string(format_hex(Phdr.p_memsz, SizeWidth));
3386 Fields[6].Str = printPhdrFlags(Phdr.p_flags);
3387 Fields[7].Str = to_string(format_hex(Phdr.p_align, 1));
Hemant Kulkarni966b3ac2016-03-25 16:04:48 +00003388 for (auto Field : Fields)
3389 printField(Field);
3390 if (Phdr.p_type == ELF::PT_INTERP) {
3391 OS << "\n [Requesting program interpreter: ";
3392 OS << reinterpret_cast<const char *>(Obj->base()) + Phdr.p_offset << "]";
3393 }
3394 OS << "\n";
3395 }
Matt Davis50ca8ed2019-02-01 18:51:10 +00003396}
3397
3398template <class ELFT>
3399void GNUStyle<ELFT>::printSectionMapping(const ELFO *Obj) {
Hemant Kulkarni966b3ac2016-03-25 16:04:48 +00003400 OS << "\n Section to Segment mapping:\n Segment Sections...\n";
Matt Davis0d0e9c02019-02-05 21:01:01 +00003401 DenseSet<const Elf_Shdr *> BelongsToSegment;
Hemant Kulkarni966b3ac2016-03-25 16:04:48 +00003402 int Phnum = 0;
Rafael Espindola6a494972016-11-03 17:28:33 +00003403 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) {
Hemant Kulkarni966b3ac2016-03-25 16:04:48 +00003404 std::string Sections;
3405 OS << format(" %2.2d ", Phnum++);
Rafael Espindola25be8c82016-11-02 14:10:57 +00003406 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
Hemant Kulkarni966b3ac2016-03-25 16:04:48 +00003407 // Check if each section is in a segment and then print mapping.
3408 // readelf additionally makes sure it does not print zero sized sections
3409 // at end of segments and for PT_DYNAMIC both start and end of section
3410 // .tbss must only be shown in PT_TLS section.
3411 bool TbssInNonTLS = (Sec.sh_type == ELF::SHT_NOBITS) &&
3412 ((Sec.sh_flags & ELF::SHF_TLS) != 0) &&
3413 Phdr.p_type != ELF::PT_TLS;
3414 if (!TbssInNonTLS && checkTLSSections(Phdr, Sec) &&
3415 checkoffsets(Phdr, Sec) && checkVMA(Phdr, Sec) &&
Matt Davis0d0e9c02019-02-05 21:01:01 +00003416 checkPTDynamic(Phdr, Sec) && (Sec.sh_type != ELF::SHT_NULL)) {
Hemant Kulkarni966b3ac2016-03-25 16:04:48 +00003417 Sections += unwrapOrError(Obj->getSectionName(&Sec)).str() + " ";
Matt Davis0d0e9c02019-02-05 21:01:01 +00003418 BelongsToSegment.insert(&Sec);
3419 }
Hemant Kulkarni966b3ac2016-03-25 16:04:48 +00003420 }
3421 OS << Sections << "\n";
3422 OS.flush();
3423 }
Matt Davis0d0e9c02019-02-05 21:01:01 +00003424
3425 // Display sections that do not belong to a segment.
3426 std::string Sections;
3427 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
3428 if (BelongsToSegment.find(&Sec) == BelongsToSegment.end())
3429 Sections += unwrapOrError(Obj->getSectionName(&Sec)).str() + ' ';
3430 }
3431 if (!Sections.empty()) {
3432 OS << " None " << Sections << '\n';
3433 OS.flush();
3434 }
Hemant Kulkarni966b3ac2016-03-25 16:04:48 +00003435}
3436
Hemant Kulkarnic030f232016-03-15 17:25:31 +00003437template <class ELFT>
Hemant Kulkarnia79c7982016-03-29 02:41:49 +00003438void GNUStyle<ELFT>::printDynamicRelocation(const ELFO *Obj, Elf_Rela R,
3439 bool IsRela) {
Hemant Kulkarnia79c7982016-03-29 02:41:49 +00003440 uint32_t SymIndex = R.getSymbol(Obj->isMips64EL());
3441 const Elf_Sym *Sym = this->dumper()->dynamic_symbols().begin() + SymIndex;
George Rimar4b4899b2019-01-30 14:08:55 +00003442 std::string SymbolName = maybeDemangle(
James Hendersone50d9cb2019-01-17 15:34:12 +00003443 unwrapOrError(Sym->getName(this->dumper()->getDynamicStringTable())));
James Henderson814ab372019-03-29 11:47:19 +00003444 printRelocation(Obj, Sym, SymbolName, R, IsRela);
Hemant Kulkarnia79c7982016-03-29 02:41:49 +00003445}
3446
Simon Atanasyan8362cbe2019-05-24 12:22:53 +00003447template <class ELFT> void GNUStyle<ELFT>::printDynamic(const ELFO *Obj) {
3448 Elf_Dyn_Range Table = this->dumper()->dynamic_table();
3449 if (Table.empty())
3450 return;
3451
3452 const DynRegionInfo &DynamicTableRegion =
3453 this->dumper()->getDynamicTableRegion();
3454
3455 OS << "Dynamic section at offset "
3456 << format_hex(reinterpret_cast<const uint8_t *>(DynamicTableRegion.Addr) -
3457 Obj->base(),
3458 1)
3459 << " contains " << Table.size() << " entries:\n";
3460
3461 bool Is64 = ELFT::Is64Bits;
3462 if (Is64)
3463 OS << " Tag Type Name/Value\n";
3464 else
3465 OS << " Tag Type Name/Value\n";
3466 for (auto Entry : Table) {
3467 uintX_t Tag = Entry.getTag();
Hans Wennborg80343a32019-05-28 12:30:35 +00003468 std::string TypeString = std::string("(") +
3469 getTypeString(Obj->getHeader()->e_machine, Tag) +
3470 ")";
3471 OS << " " << format_hex(Tag, Is64 ? 18 : 10)
3472 << format(" %-20s ", TypeString.c_str());
Simon Atanasyan8362cbe2019-05-24 12:22:53 +00003473 this->dumper()->printDynamicEntry(OS, Tag, Entry.getVal());
3474 OS << "\n";
3475 }
3476}
3477
Hemant Kulkarnia79c7982016-03-29 02:41:49 +00003478template <class ELFT>
Hemant Kulkarnic030f232016-03-15 17:25:31 +00003479void GNUStyle<ELFT>::printDynamicRelocations(const ELFO *Obj) {
Hemant Kulkarnia79c7982016-03-29 02:41:49 +00003480 const DynRegionInfo &DynRelRegion = this->dumper()->getDynRelRegion();
3481 const DynRegionInfo &DynRelaRegion = this->dumper()->getDynRelaRegion();
Jake Ehrlich0f440d82018-06-28 21:07:34 +00003482 const DynRegionInfo &DynRelrRegion = this->dumper()->getDynRelrRegion();
Hemant Kulkarnia79c7982016-03-29 02:41:49 +00003483 const DynRegionInfo &DynPLTRelRegion = this->dumper()->getDynPLTRelRegion();
3484 if (DynRelaRegion.Size > 0) {
3485 OS << "\n'RELA' relocation section at offset "
3486 << format_hex(reinterpret_cast<const uint8_t *>(DynRelaRegion.Addr) -
3487 Obj->base(),
George Rimar9e88a262019-05-14 14:22:44 +00003488 1)
3489 << " contains " << DynRelaRegion.Size << " bytes:\n";
Jake Ehrlich0f440d82018-06-28 21:07:34 +00003490 printRelocHeader(ELF::SHT_RELA);
Hemant Kulkarnia79c7982016-03-29 02:41:49 +00003491 for (const Elf_Rela &Rela : this->dumper()->dyn_relas())
3492 printDynamicRelocation(Obj, Rela, true);
3493 }
3494 if (DynRelRegion.Size > 0) {
3495 OS << "\n'REL' relocation section at offset "
3496 << format_hex(reinterpret_cast<const uint8_t *>(DynRelRegion.Addr) -
3497 Obj->base(),
George Rimar9e88a262019-05-14 14:22:44 +00003498 1)
3499 << " contains " << DynRelRegion.Size << " bytes:\n";
Jake Ehrlich0f440d82018-06-28 21:07:34 +00003500 printRelocHeader(ELF::SHT_REL);
Hemant Kulkarnia79c7982016-03-29 02:41:49 +00003501 for (const Elf_Rel &Rel : this->dumper()->dyn_rels()) {
3502 Elf_Rela Rela;
3503 Rela.r_offset = Rel.r_offset;
3504 Rela.r_info = Rel.r_info;
3505 Rela.r_addend = 0;
3506 printDynamicRelocation(Obj, Rela, false);
3507 }
3508 }
Jake Ehrlich0f440d82018-06-28 21:07:34 +00003509 if (DynRelrRegion.Size > 0) {
3510 OS << "\n'RELR' relocation section at offset "
3511 << format_hex(reinterpret_cast<const uint8_t *>(DynRelrRegion.Addr) -
3512 Obj->base(),
George Rimar9e88a262019-05-14 14:22:44 +00003513 1)
3514 << " contains " << DynRelrRegion.Size << " bytes:\n";
Jake Ehrlich0f440d82018-06-28 21:07:34 +00003515 printRelocHeader(ELF::SHT_REL);
3516 Elf_Relr_Range Relrs = this->dumper()->dyn_relrs();
3517 std::vector<Elf_Rela> RelrRelas = unwrapOrError(Obj->decode_relrs(Relrs));
3518 for (const Elf_Rela &Rela : RelrRelas) {
3519 printDynamicRelocation(Obj, Rela, false);
3520 }
3521 }
Hemant Kulkarnia79c7982016-03-29 02:41:49 +00003522 if (DynPLTRelRegion.Size) {
3523 OS << "\n'PLT' relocation section at offset "
3524 << format_hex(reinterpret_cast<const uint8_t *>(DynPLTRelRegion.Addr) -
3525 Obj->base(),
George Rimar9e88a262019-05-14 14:22:44 +00003526 1)
3527 << " contains " << DynPLTRelRegion.Size << " bytes:\n";
Hemant Kulkarnia79c7982016-03-29 02:41:49 +00003528 }
3529 if (DynPLTRelRegion.EntSize == sizeof(Elf_Rela)) {
Jake Ehrlich0f440d82018-06-28 21:07:34 +00003530 printRelocHeader(ELF::SHT_RELA);
Rafael Espindolaaafcf752016-04-05 14:47:22 +00003531 for (const Elf_Rela &Rela : DynPLTRelRegion.getAsArrayRef<Elf_Rela>())
Hemant Kulkarnia79c7982016-03-29 02:41:49 +00003532 printDynamicRelocation(Obj, Rela, true);
3533 } else {
Jake Ehrlich0f440d82018-06-28 21:07:34 +00003534 printRelocHeader(ELF::SHT_REL);
Rafael Espindolaaafcf752016-04-05 14:47:22 +00003535 for (const Elf_Rel &Rel : DynPLTRelRegion.getAsArrayRef<Elf_Rel>()) {
Hemant Kulkarnia79c7982016-03-29 02:41:49 +00003536 Elf_Rela Rela;
3537 Rela.r_offset = Rel.r_offset;
3538 Rela.r_info = Rel.r_info;
3539 Rela.r_addend = 0;
3540 printDynamicRelocation(Obj, Rela, false);
3541 }
3542 }
Hemant Kulkarnic030f232016-03-15 17:25:31 +00003543}
3544
Xing GUOea16be12019-03-25 11:02:49 +00003545template <class ELFT>
George Rimare3406c42019-05-30 10:14:41 +00003546static void printGNUVersionSectionProlog(formatted_raw_ostream &OS,
3547 const Twine &Name, unsigned EntriesNum,
3548 const ELFFile<ELFT> *Obj,
3549 const typename ELFT::Shdr *Sec) {
3550 StringRef SecName = unwrapOrError(Obj->getSectionName(Sec));
3551 OS << Name << " section '" << SecName << "' "
3552 << "contains " << EntriesNum << " entries:\n";
3553
3554 const typename ELFT::Shdr *SymTab =
3555 unwrapOrError(Obj->getSection(Sec->sh_link));
3556 StringRef SymTabName = unwrapOrError(Obj->getSectionName(SymTab));
3557 OS << " Addr: " << format_hex_no_prefix(Sec->sh_addr, 16)
3558 << " Offset: " << format_hex(Sec->sh_offset, 8)
3559 << " Link: " << Sec->sh_link << " (" << SymTabName << ")\n";
3560}
3561
3562template <class ELFT>
Xing GUOea16be12019-03-25 11:02:49 +00003563void GNUStyle<ELFT>::printVersionSymbolSection(const ELFFile<ELFT> *Obj,
3564 const Elf_Shdr *Sec) {
3565 if (!Sec)
3566 return;
3567
George Rimare3406c42019-05-30 10:14:41 +00003568 unsigned Entries = Sec->sh_size / sizeof(Elf_Versym);
3569 printGNUVersionSectionProlog(OS, "Version symbols", Entries, Obj, Sec);
Xing GUO8f6166a2019-04-03 13:32:49 +00003570
3571 const uint8_t *VersymBuf =
3572 reinterpret_cast<const uint8_t *>(Obj->base() + Sec->sh_offset);
3573 const ELFDumper<ELFT> *Dumper = this->dumper();
3574 StringRef StrTable = Dumper->getDynamicStringTable();
3575
3576 // readelf prints 4 entries per line.
3577 for (uint64_t VersymRow = 0; VersymRow < Entries; VersymRow += 4) {
3578 OS << " " << format_hex_no_prefix(VersymRow, 3) << ":";
3579
3580 for (uint64_t VersymIndex = 0;
3581 (VersymIndex < 4) && (VersymIndex + VersymRow) < Entries;
3582 ++VersymIndex) {
3583 const Elf_Versym *Versym =
3584 reinterpret_cast<const Elf_Versym *>(VersymBuf);
3585 switch (Versym->vs_index) {
3586 case 0:
3587 OS << " 0 (*local*) ";
3588 break;
3589 case 1:
3590 OS << " 1 (*global*) ";
3591 break;
3592 default:
3593 OS << format("%4x%c", Versym->vs_index & VERSYM_VERSION,
3594 Versym->vs_index & VERSYM_HIDDEN ? 'h' : ' ');
3595
3596 bool IsDefault = true;
3597 std::string VersionName = Dumper->getSymbolVersionByIndex(
3598 StrTable, Versym->vs_index, IsDefault);
3599
3600 if (!VersionName.empty())
3601 VersionName = "(" + VersionName + ")";
3602 else
3603 VersionName = "(*invalid*)";
3604 OS << left_justify(VersionName, 13);
3605 }
3606 VersymBuf += sizeof(Elf_Versym);
3607 }
3608 OS << '\n';
3609 }
3610 OS << '\n';
Xing GUOea16be12019-03-25 11:02:49 +00003611}
3612
George Rimarc372f412019-05-30 10:36:52 +00003613static std::string versionFlagToString(unsigned Flags) {
George Rimare3406c42019-05-30 10:14:41 +00003614 if (Flags == 0)
3615 return "none";
3616
3617 std::string Ret;
3618 auto AddFlag = [&Ret, &Flags](unsigned Flag, StringRef Name) {
3619 if (!(Flags & Flag))
3620 return;
3621 if (!Ret.empty())
3622 Ret += " | ";
3623 Ret += Name;
3624 Flags &= ~Flag;
3625 };
3626
3627 AddFlag(VER_FLG_BASE, "BASE");
3628 AddFlag(VER_FLG_WEAK, "WEAK");
3629 AddFlag(VER_FLG_INFO, "INFO");
3630 AddFlag(~0, "<unknown>");
3631 return Ret;
Xing GUOea16be12019-03-25 11:02:49 +00003632}
3633
3634template <class ELFT>
George Rimarc372f412019-05-30 10:36:52 +00003635void GNUStyle<ELFT>::printVersionDefinitionSection(const ELFFile<ELFT> *Obj,
3636 const Elf_Shdr *Sec) {
3637 if (!Sec)
3638 return;
3639
3640 unsigned VerDefsNum = Sec->sh_info;
3641 printGNUVersionSectionProlog(OS, "Version definition", VerDefsNum, Obj, Sec);
3642
3643 const Elf_Shdr *StrTabSec = unwrapOrError(Obj->getSection(Sec->sh_link));
3644 StringRef StringTable(
3645 reinterpret_cast<const char *>(Obj->base() + StrTabSec->sh_offset),
George Rimar28e1ff22019-05-30 10:42:47 +00003646 (size_t)StrTabSec->sh_size);
George Rimarc372f412019-05-30 10:36:52 +00003647
3648 const uint8_t *VerdefBuf = unwrapOrError(Obj->getSectionContents(Sec)).data();
3649 const uint8_t *Begin = VerdefBuf;
3650
3651 while (VerDefsNum--) {
3652 const Elf_Verdef *Verdef = reinterpret_cast<const Elf_Verdef *>(VerdefBuf);
3653 OS << format(" 0x%04x: Rev: %u Flags: %s Index: %u Cnt: %u",
3654 VerdefBuf - Begin, (unsigned)Verdef->vd_version,
3655 versionFlagToString(Verdef->vd_flags).c_str(),
3656 (unsigned)Verdef->vd_ndx, (unsigned)Verdef->vd_cnt);
3657
3658 const uint8_t *VerdauxBuf = VerdefBuf + Verdef->vd_aux;
3659 const Elf_Verdaux *Verdaux =
3660 reinterpret_cast<const Elf_Verdaux *>(VerdauxBuf);
3661 OS << format(" Name: %s\n",
3662 StringTable.drop_front(Verdaux->vda_name).data());
3663
3664 for (unsigned I = 1; I < Verdef->vd_cnt; ++I) {
3665 VerdauxBuf += Verdaux->vda_next;
3666 Verdaux = reinterpret_cast<const Elf_Verdaux *>(VerdauxBuf);
3667 OS << format(" 0x%04x: Parent %u: %s\n", VerdauxBuf - Begin, I,
3668 StringTable.drop_front(Verdaux->vda_name).data());
3669 }
3670
3671 VerdefBuf += Verdef->vd_next;
3672 }
3673 OS << '\n';
3674}
3675
3676template <class ELFT>
Xing GUOea16be12019-03-25 11:02:49 +00003677void GNUStyle<ELFT>::printVersionDependencySection(const ELFFile<ELFT> *Obj,
3678 const Elf_Shdr *Sec) {
3679 if (!Sec)
3680 return;
3681
George Rimare3406c42019-05-30 10:14:41 +00003682 unsigned VerneedNum = Sec->sh_info;
3683 printGNUVersionSectionProlog(OS, "Version needs", VerneedNum, Obj, Sec);
3684
3685 ArrayRef<uint8_t> SecData = unwrapOrError(Obj->getSectionContents(Sec));
3686
3687 const Elf_Shdr *StrTabSec = unwrapOrError(Obj->getSection(Sec->sh_link));
3688 StringRef StringTable = {
3689 reinterpret_cast<const char *>(Obj->base() + StrTabSec->sh_offset),
George Rimar28e1ff22019-05-30 10:42:47 +00003690 (size_t)StrTabSec->sh_size};
George Rimare3406c42019-05-30 10:14:41 +00003691
3692 const uint8_t *VerneedBuf = SecData.data();
3693 for (unsigned I = 0; I < VerneedNum; ++I) {
3694 const Elf_Verneed *Verneed =
3695 reinterpret_cast<const Elf_Verneed *>(VerneedBuf);
3696
3697 OS << format(" 0x%04x: Version: %u File: %s Cnt: %u\n",
3698 reinterpret_cast<const uint8_t *>(Verneed) - SecData.begin(),
3699 (unsigned)Verneed->vn_version,
3700 StringTable.drop_front(Verneed->vn_file).data(),
3701 (unsigned)Verneed->vn_cnt);
3702
3703 const uint8_t *VernauxBuf = VerneedBuf + Verneed->vn_aux;
3704 for (unsigned J = 0; J < Verneed->vn_cnt; ++J) {
3705 const Elf_Vernaux *Vernaux =
3706 reinterpret_cast<const Elf_Vernaux *>(VernauxBuf);
3707
3708 OS << format(" 0x%04x: Name: %s Flags: %s Version: %u\n",
3709 reinterpret_cast<const uint8_t *>(Vernaux) - SecData.begin(),
3710 StringTable.drop_front(Vernaux->vna_name).data(),
George Rimarc372f412019-05-30 10:36:52 +00003711 versionFlagToString(Vernaux->vna_flags).c_str(),
George Rimare3406c42019-05-30 10:14:41 +00003712 (unsigned)Vernaux->vna_other);
3713 VernauxBuf += Vernaux->vna_next;
3714 }
3715 VerneedBuf += Verneed->vn_next;
3716 }
3717 OS << '\n';
Xing GUOea16be12019-03-25 11:02:49 +00003718}
3719
Hemant Kulkarni9b1b7f02016-04-11 17:15:30 +00003720// Hash histogram shows statistics of how efficient the hash was for the
3721// dynamic symbol table. The table shows number of hash buckets for different
3722// lengths of chains as absolute number and percentage of the total buckets.
3723// Additionally cumulative coverage of symbols for each set of buckets.
3724template <class ELFT>
3725void GNUStyle<ELFT>::printHashHistogram(const ELFFile<ELFT> *Obj) {
Hemant Kulkarni9b1b7f02016-04-11 17:15:30 +00003726 // Print histogram for .hash section
George Rimar1206f5a2019-01-30 15:39:05 +00003727 if (const Elf_Hash *HashTable = this->dumper()->getHashTable()) {
Hemant Kulkarni9b1b7f02016-04-11 17:15:30 +00003728 size_t NBucket = HashTable->nbucket;
3729 size_t NChain = HashTable->nchain;
3730 ArrayRef<Elf_Word> Buckets = HashTable->buckets();
3731 ArrayRef<Elf_Word> Chains = HashTable->chains();
3732 size_t TotalSyms = 0;
3733 // If hash table is correct, we have at least chains with 0 length
3734 size_t MaxChain = 1;
3735 size_t CumulativeNonZero = 0;
3736
3737 if (NChain == 0 || NBucket == 0)
3738 return;
3739
3740 std::vector<size_t> ChainLen(NBucket, 0);
3741 // Go over all buckets and and note chain lengths of each bucket (total
3742 // unique chain lengths).
3743 for (size_t B = 0; B < NBucket; B++) {
3744 for (size_t C = Buckets[B]; C > 0 && C < NChain; C = Chains[C])
3745 if (MaxChain <= ++ChainLen[B])
3746 MaxChain++;
3747 TotalSyms += ChainLen[B];
3748 }
3749
3750 if (!TotalSyms)
3751 return;
3752
George Rimarec895f12019-05-16 06:22:51 +00003753 std::vector<size_t> Count(MaxChain, 0) ;
Hemant Kulkarni9b1b7f02016-04-11 17:15:30 +00003754 // Count how long is the chain for each bucket
3755 for (size_t B = 0; B < NBucket; B++)
3756 ++Count[ChainLen[B]];
3757 // Print Number of buckets with each chain lengths and their cumulative
3758 // coverage of the symbols
3759 OS << "Histogram for bucket list length (total of " << NBucket
3760 << " buckets)\n"
3761 << " Length Number % of total Coverage\n";
3762 for (size_t I = 0; I < MaxChain; I++) {
3763 CumulativeNonZero += Count[I] * I;
3764 OS << format("%7lu %-10lu (%5.1f%%) %5.1f%%\n", I, Count[I],
3765 (Count[I] * 100.0) / NBucket,
3766 (CumulativeNonZero * 100.0) / TotalSyms);
3767 }
3768 }
3769
3770 // Print histogram for .gnu.hash section
George Rimar1206f5a2019-01-30 15:39:05 +00003771 if (const Elf_GnuHash *GnuHashTable = this->dumper()->getGnuHashTable()) {
Hemant Kulkarni9b1b7f02016-04-11 17:15:30 +00003772 size_t NBucket = GnuHashTable->nbuckets;
3773 ArrayRef<Elf_Word> Buckets = GnuHashTable->buckets();
3774 unsigned NumSyms = this->dumper()->dynamic_symbols().size();
3775 if (!NumSyms)
3776 return;
3777 ArrayRef<Elf_Word> Chains = GnuHashTable->values(NumSyms);
3778 size_t Symndx = GnuHashTable->symndx;
3779 size_t TotalSyms = 0;
3780 size_t MaxChain = 1;
3781 size_t CumulativeNonZero = 0;
3782
Eugene Zelenko416e0592017-06-09 21:41:54 +00003783 if (Chains.empty() || NBucket == 0)
Hemant Kulkarni9b1b7f02016-04-11 17:15:30 +00003784 return;
3785
3786 std::vector<size_t> ChainLen(NBucket, 0);
3787
3788 for (size_t B = 0; B < NBucket; B++) {
3789 if (!Buckets[B])
3790 continue;
3791 size_t Len = 1;
3792 for (size_t C = Buckets[B] - Symndx;
3793 C < Chains.size() && (Chains[C] & 1) == 0; C++)
3794 if (MaxChain < ++Len)
3795 MaxChain++;
3796 ChainLen[B] = Len;
3797 TotalSyms += Len;
3798 }
3799 MaxChain++;
3800
3801 if (!TotalSyms)
3802 return;
3803
George Rimarec895f12019-05-16 06:22:51 +00003804 std::vector<size_t> Count(MaxChain, 0) ;
Hemant Kulkarni9b1b7f02016-04-11 17:15:30 +00003805 for (size_t B = 0; B < NBucket; B++)
3806 ++Count[ChainLen[B]];
3807 // Print Number of buckets with each chain lengths and their cumulative
3808 // coverage of the symbols
3809 OS << "Histogram for `.gnu.hash' bucket list length (total of " << NBucket
3810 << " buckets)\n"
3811 << " Length Number % of total Coverage\n";
George Rimarec895f12019-05-16 06:22:51 +00003812 for (size_t I = 0; I <MaxChain; I++) {
Hemant Kulkarni9b1b7f02016-04-11 17:15:30 +00003813 CumulativeNonZero += Count[I] * I;
3814 OS << format("%7lu %-10lu (%5.1f%%) %5.1f%%\n", I, Count[I],
3815 (Count[I] * 100.0) / NBucket,
3816 (CumulativeNonZero * 100.0) / TotalSyms);
3817 }
3818 }
3819}
3820
Michael J. Spencerae6eeae2018-06-02 16:33:01 +00003821template <class ELFT>
3822void GNUStyle<ELFT>::printCGProfile(const ELFFile<ELFT> *Obj) {
3823 OS << "GNUStyle::printCGProfile not implemented\n";
3824}
3825
Peter Collingbourne3e227332018-07-17 22:17:18 +00003826template <class ELFT>
3827void GNUStyle<ELFT>::printAddrsig(const ELFFile<ELFT> *Obj) {
George Rimarec895f12019-05-16 06:22:51 +00003828 OS << "GNUStyle::printAddrsig not implemented\n";
Peter Collingbourne3e227332018-07-17 22:17:18 +00003829}
3830
Jordan Rupprecht871baa22019-03-29 16:48:19 +00003831static StringRef getGenericNoteTypeName(const uint32_t NT) {
3832 static const struct {
3833 uint32_t ID;
3834 const char *Name;
3835 } Notes[] = {
3836 {ELF::NT_VERSION, "NT_VERSION (version)"},
3837 {ELF::NT_ARCH, "NT_ARCH (architecture)"},
3838 {ELF::NT_GNU_BUILD_ATTRIBUTE_OPEN, "OPEN"},
3839 {ELF::NT_GNU_BUILD_ATTRIBUTE_FUNC, "func"},
3840 };
3841
3842 for (const auto &Note : Notes)
3843 if (Note.ID == NT)
3844 return Note.Name;
3845
3846 return "";
3847}
3848
Jordan Rupprechtd884fbd2019-08-05 15:43:20 +00003849static StringRef getCoreNoteTypeName(const uint32_t NT) {
3850 static const struct {
3851 uint32_t ID;
3852 const char *Name;
3853 } Notes[] = {
3854 {ELF::NT_PRSTATUS, "NT_PRSTATUS (prstatus structure)"},
3855 {ELF::NT_FPREGSET, "NT_FPREGSET (floating point registers)"},
3856 {ELF::NT_PRPSINFO, "NT_PRPSINFO (prpsinfo structure)"},
3857 {ELF::NT_TASKSTRUCT, "NT_TASKSTRUCT (task structure)"},
3858 {ELF::NT_AUXV, "NT_AUXV (auxiliary vector)"},
3859 {ELF::NT_PSTATUS, "NT_PSTATUS (pstatus structure)"},
3860 {ELF::NT_FPREGS, "NT_FPREGS (floating point registers)"},
3861 {ELF::NT_PSINFO, "NT_PSINFO (psinfo structure)"},
3862 {ELF::NT_LWPSTATUS, "NT_LWPSTATUS (lwpstatus_t structure)"},
3863 {ELF::NT_LWPSINFO, "NT_LWPSINFO (lwpsinfo_t structure)"},
3864 {ELF::NT_WIN32PSTATUS, "NT_WIN32PSTATUS (win32_pstatus structure)"},
3865
3866 {ELF::NT_PPC_VMX, "NT_PPC_VMX (ppc Altivec registers)"},
3867 {ELF::NT_PPC_VSX, "NT_PPC_VSX (ppc VSX registers)"},
3868 {ELF::NT_PPC_TAR, "NT_PPC_TAR (ppc TAR register)"},
3869 {ELF::NT_PPC_PPR, "NT_PPC_PPR (ppc PPR register)"},
3870 {ELF::NT_PPC_DSCR, "NT_PPC_DSCR (ppc DSCR register)"},
3871 {ELF::NT_PPC_EBB, "NT_PPC_EBB (ppc EBB registers)"},
3872 {ELF::NT_PPC_PMU, "NT_PPC_PMU (ppc PMU registers)"},
3873 {ELF::NT_PPC_TM_CGPR, "NT_PPC_TM_CGPR (ppc checkpointed GPR registers)"},
3874 {ELF::NT_PPC_TM_CFPR,
3875 "NT_PPC_TM_CFPR (ppc checkpointed floating point registers)"},
3876 {ELF::NT_PPC_TM_CVMX,
3877 "NT_PPC_TM_CVMX (ppc checkpointed Altivec registers)"},
3878 {ELF::NT_PPC_TM_CVSX, "NT_PPC_TM_CVSX (ppc checkpointed VSX registers)"},
3879 {ELF::NT_PPC_TM_SPR, "NT_PPC_TM_SPR (ppc TM special purpose registers)"},
3880 {ELF::NT_PPC_TM_CTAR, "NT_PPC_TM_CTAR (ppc checkpointed TAR register)"},
3881 {ELF::NT_PPC_TM_CPPR, "NT_PPC_TM_CPPR (ppc checkpointed PPR register)"},
3882 {ELF::NT_PPC_TM_CDSCR,
3883 "NT_PPC_TM_CDSCR (ppc checkpointed DSCR register)"},
3884
3885 {ELF::NT_386_TLS, "NT_386_TLS (x86 TLS information)"},
3886 {ELF::NT_386_IOPERM, "NT_386_IOPERM (x86 I/O permissions)"},
3887 {ELF::NT_X86_XSTATE, "NT_X86_XSTATE (x86 XSAVE extended state)"},
3888
3889 {ELF::NT_S390_HIGH_GPRS,
3890 "NT_S390_HIGH_GPRS (s390 upper register halves)"},
3891 {ELF::NT_S390_TIMER, "NT_S390_TIMER (s390 timer register)"},
3892 {ELF::NT_S390_TODCMP, "NT_S390_TODCMP (s390 TOD comparator register)"},
3893 {ELF::NT_S390_TODPREG,
3894 "NT_S390_TODPREG (s390 TOD programmable register)"},
3895 {ELF::NT_S390_CTRS, "NT_S390_CTRS (s390 control registers)"},
3896 {ELF::NT_S390_PREFIX, "NT_S390_PREFIX (s390 prefix register)"},
3897 {ELF::NT_S390_LAST_BREAK,
3898 "NT_S390_LAST_BREAK (s390 last breaking event address)"},
3899 {ELF::NT_S390_SYSTEM_CALL,
3900 "NT_S390_SYSTEM_CALL (s390 system call restart data)"},
3901 {ELF::NT_S390_TDB, "NT_S390_TDB (s390 transaction diagnostic block)"},
3902 {ELF::NT_S390_VXRS_LOW,
3903 "NT_S390_VXRS_LOW (s390 vector registers 0-15 upper half)"},
3904 {ELF::NT_S390_VXRS_HIGH,
3905 "NT_S390_VXRS_HIGH (s390 vector registers 16-31)"},
3906 {ELF::NT_S390_GS_CB, "NT_S390_GS_CB (s390 guarded-storage registers)"},
3907 {ELF::NT_S390_GS_BC,
3908 "NT_S390_GS_BC (s390 guarded-storage broadcast control)"},
3909
3910 {ELF::NT_ARM_VFP, "NT_ARM_VFP (arm VFP registers)"},
3911 {ELF::NT_ARM_TLS, "NT_ARM_TLS (AArch TLS registers)"},
3912 {ELF::NT_ARM_HW_BREAK,
3913 "NT_ARM_HW_BREAK (AArch hardware breakpoint registers)"},
3914 {ELF::NT_ARM_HW_WATCH,
3915 "NT_ARM_HW_WATCH (AArch hardware watchpoint registers)"},
3916
3917 {ELF::NT_FILE, "NT_FILE (mapped files)"},
3918 {ELF::NT_PRXFPREG, "NT_PRXFPREG (user_xfpregs structure)"},
3919 {ELF::NT_SIGINFO, "NT_SIGINFO (siginfo_t data)"},
3920 };
3921
3922 for (const auto &Note : Notes)
3923 if (Note.ID == NT)
3924 return Note.Name;
3925
3926 return "";
3927}
3928
Saleem Abdulrasool6a405442016-08-30 18:52:02 +00003929static std::string getGNUNoteTypeName(const uint32_t NT) {
3930 static const struct {
3931 uint32_t ID;
3932 const char *Name;
3933 } Notes[] = {
3934 {ELF::NT_GNU_ABI_TAG, "NT_GNU_ABI_TAG (ABI version tag)"},
3935 {ELF::NT_GNU_HWCAP, "NT_GNU_HWCAP (DSO-supplied software HWCAP info)"},
3936 {ELF::NT_GNU_BUILD_ID, "NT_GNU_BUILD_ID (unique build ID bitstring)"},
3937 {ELF::NT_GNU_GOLD_VERSION, "NT_GNU_GOLD_VERSION (gold version)"},
George Rimar6a14c022018-03-21 08:34:55 +00003938 {ELF::NT_GNU_PROPERTY_TYPE_0, "NT_GNU_PROPERTY_TYPE_0 (property note)"},
Saleem Abdulrasool6a405442016-08-30 18:52:02 +00003939 };
3940
3941 for (const auto &Note : Notes)
3942 if (Note.ID == NT)
3943 return std::string(Note.Name);
3944
3945 std::string string;
3946 raw_string_ostream OS(string);
3947 OS << format("Unknown note type (0x%08x)", NT);
Konstantin Zhuravlyov716af742017-10-14 16:43:46 +00003948 return OS.str();
Saleem Abdulrasool6a405442016-08-30 18:52:02 +00003949}
3950
Saleem Abdulrasool4b089132017-02-12 18:55:33 +00003951static std::string getFreeBSDNoteTypeName(const uint32_t NT) {
3952 static const struct {
3953 uint32_t ID;
3954 const char *Name;
3955 } Notes[] = {
3956 {ELF::NT_FREEBSD_THRMISC, "NT_THRMISC (thrmisc structure)"},
3957 {ELF::NT_FREEBSD_PROCSTAT_PROC, "NT_PROCSTAT_PROC (proc data)"},
3958 {ELF::NT_FREEBSD_PROCSTAT_FILES, "NT_PROCSTAT_FILES (files data)"},
3959 {ELF::NT_FREEBSD_PROCSTAT_VMMAP, "NT_PROCSTAT_VMMAP (vmmap data)"},
3960 {ELF::NT_FREEBSD_PROCSTAT_GROUPS, "NT_PROCSTAT_GROUPS (groups data)"},
3961 {ELF::NT_FREEBSD_PROCSTAT_UMASK, "NT_PROCSTAT_UMASK (umask data)"},
3962 {ELF::NT_FREEBSD_PROCSTAT_RLIMIT, "NT_PROCSTAT_RLIMIT (rlimit data)"},
3963 {ELF::NT_FREEBSD_PROCSTAT_OSREL, "NT_PROCSTAT_OSREL (osreldate data)"},
3964 {ELF::NT_FREEBSD_PROCSTAT_PSSTRINGS,
3965 "NT_PROCSTAT_PSSTRINGS (ps_strings data)"},
3966 {ELF::NT_FREEBSD_PROCSTAT_AUXV, "NT_PROCSTAT_AUXV (auxv data)"},
3967 };
3968
3969 for (const auto &Note : Notes)
3970 if (Note.ID == NT)
3971 return std::string(Note.Name);
3972
3973 std::string string;
3974 raw_string_ostream OS(string);
3975 OS << format("Unknown note type (0x%08x)", NT);
Konstantin Zhuravlyov716af742017-10-14 16:43:46 +00003976 return OS.str();
3977}
3978
Scott Linderf5b36e52018-12-12 19:39:27 +00003979static std::string getAMDNoteTypeName(const uint32_t NT) {
Konstantin Zhuravlyov716af742017-10-14 16:43:46 +00003980 static const struct {
3981 uint32_t ID;
3982 const char *Name;
George Rimar9e88a262019-05-14 14:22:44 +00003983 } Notes[] = {{ELF::NT_AMD_AMDGPU_HSA_METADATA,
3984 "NT_AMD_AMDGPU_HSA_METADATA (HSA Metadata)"},
3985 {ELF::NT_AMD_AMDGPU_ISA, "NT_AMD_AMDGPU_ISA (ISA Version)"},
3986 {ELF::NT_AMD_AMDGPU_PAL_METADATA,
3987 "NT_AMD_AMDGPU_PAL_METADATA (PAL Metadata)"}};
Konstantin Zhuravlyov716af742017-10-14 16:43:46 +00003988
3989 for (const auto &Note : Notes)
3990 if (Note.ID == NT)
3991 return std::string(Note.Name);
3992
3993 std::string string;
3994 raw_string_ostream OS(string);
3995 OS << format("Unknown note type (0x%08x)", NT);
3996 return OS.str();
Saleem Abdulrasool4b089132017-02-12 18:55:33 +00003997}
3998
Scott Linderf5b36e52018-12-12 19:39:27 +00003999static std::string getAMDGPUNoteTypeName(const uint32_t NT) {
4000 if (NT == ELF::NT_AMDGPU_METADATA)
4001 return std::string("NT_AMDGPU_METADATA (AMDGPU Metadata)");
4002
4003 std::string string;
4004 raw_string_ostream OS(string);
4005 OS << format("Unknown note type (0x%08x)", NT);
4006 return OS.str();
4007}
4008
Saleem Abdulrasool6a405442016-08-30 18:52:02 +00004009template <typename ELFT>
Jordan Rupprecht4f36c7a2018-11-07 23:53:50 +00004010static std::string getGNUProperty(uint32_t Type, uint32_t DataSize,
4011 ArrayRef<uint8_t> Data) {
4012 std::string str;
4013 raw_string_ostream OS(str);
Fangrui Song6a03b932019-02-13 15:58:23 +00004014 uint32_t PrData;
Fangrui Song12d55992019-02-13 01:51:45 +00004015 auto DumpBit = [&](uint32_t Flag, StringRef Name) {
Fangrui Song6a03b932019-02-13 15:58:23 +00004016 if (PrData & Flag) {
4017 PrData &= ~Flag;
Fangrui Song12d55992019-02-13 01:51:45 +00004018 OS << Name;
Fangrui Song6a03b932019-02-13 15:58:23 +00004019 if (PrData)
Fangrui Song12d55992019-02-13 01:51:45 +00004020 OS << ", ";
4021 }
4022 };
4023
George Rimar6a14c022018-03-21 08:34:55 +00004024 switch (Type) {
4025 default:
Jordan Rupprecht4f36c7a2018-11-07 23:53:50 +00004026 OS << format("<application-specific type 0x%x>", Type);
4027 return OS.str();
George Rimar6a14c022018-03-21 08:34:55 +00004028 case GNU_PROPERTY_STACK_SIZE: {
Jordan Rupprecht4f36c7a2018-11-07 23:53:50 +00004029 OS << "stack size: ";
George Rimar6a14c022018-03-21 08:34:55 +00004030 if (DataSize == sizeof(typename ELFT::uint))
Jordan Rupprecht4f36c7a2018-11-07 23:53:50 +00004031 OS << formatv("{0:x}",
4032 (uint64_t)(*(const typename ELFT::Addr *)Data.data()));
George Rimar6a14c022018-03-21 08:34:55 +00004033 else
Jordan Rupprecht4f36c7a2018-11-07 23:53:50 +00004034 OS << format("<corrupt length: 0x%x>", DataSize);
4035 return OS.str();
George Rimar6a14c022018-03-21 08:34:55 +00004036 }
4037 case GNU_PROPERTY_NO_COPY_ON_PROTECTED:
Jordan Rupprecht4f36c7a2018-11-07 23:53:50 +00004038 OS << "no copy on protected";
George Rimar6a14c022018-03-21 08:34:55 +00004039 if (DataSize)
4040 OS << format(" <corrupt length: 0x%x>", DataSize);
Jordan Rupprecht4f36c7a2018-11-07 23:53:50 +00004041 return OS.str();
Peter Smith580c6d32019-06-04 11:28:22 +00004042 case GNU_PROPERTY_AARCH64_FEATURE_1_AND:
Alexander Ivchenkoab60a282018-06-04 15:14:18 +00004043 case GNU_PROPERTY_X86_FEATURE_1_AND:
Peter Smith580c6d32019-06-04 11:28:22 +00004044 OS << ((Type == GNU_PROPERTY_AARCH64_FEATURE_1_AND) ? "aarch64 feature: "
4045 : "x86 feature: ");
Fangrui Song8e0d5ac2019-02-12 09:56:01 +00004046 if (DataSize != 4) {
Jordan Rupprecht4f36c7a2018-11-07 23:53:50 +00004047 OS << format("<corrupt length: 0x%x>", DataSize);
4048 return OS.str();
Alexander Ivchenkoab60a282018-06-04 15:14:18 +00004049 }
Fangrui Song6a03b932019-02-13 15:58:23 +00004050 PrData = support::endian::read32<ELFT::TargetEndianness>(Data.data());
4051 if (PrData == 0) {
Fangrui Song12d55992019-02-13 01:51:45 +00004052 OS << "<None>";
Jordan Rupprecht4f36c7a2018-11-07 23:53:50 +00004053 return OS.str();
Alexander Ivchenkoab60a282018-06-04 15:14:18 +00004054 }
Peter Smith580c6d32019-06-04 11:28:22 +00004055 if (Type == GNU_PROPERTY_AARCH64_FEATURE_1_AND) {
4056 DumpBit(GNU_PROPERTY_AARCH64_FEATURE_1_BTI, "BTI");
4057 DumpBit(GNU_PROPERTY_AARCH64_FEATURE_1_PAC, "PAC");
4058 } else {
4059 DumpBit(GNU_PROPERTY_X86_FEATURE_1_IBT, "IBT");
4060 DumpBit(GNU_PROPERTY_X86_FEATURE_1_SHSTK, "SHSTK");
4061 }
Fangrui Song6a03b932019-02-13 15:58:23 +00004062 if (PrData)
4063 OS << format("<unknown flags: 0x%x>", PrData);
Fangrui Song12d55992019-02-13 01:51:45 +00004064 return OS.str();
Fangrui Song91ab9bf2019-02-13 23:18:05 +00004065 case GNU_PROPERTY_X86_ISA_1_NEEDED:
4066 case GNU_PROPERTY_X86_ISA_1_USED:
4067 OS << "x86 ISA "
4068 << (Type == GNU_PROPERTY_X86_ISA_1_NEEDED ? "needed: " : "used: ");
4069 if (DataSize != 4) {
4070 OS << format("<corrupt length: 0x%x>", DataSize);
4071 return OS.str();
4072 }
4073 PrData = support::endian::read32<ELFT::TargetEndianness>(Data.data());
4074 if (PrData == 0) {
4075 OS << "<None>";
4076 return OS.str();
4077 }
4078 DumpBit(GNU_PROPERTY_X86_ISA_1_CMOV, "CMOV");
4079 DumpBit(GNU_PROPERTY_X86_ISA_1_SSE, "SSE");
4080 DumpBit(GNU_PROPERTY_X86_ISA_1_SSE2, "SSE2");
4081 DumpBit(GNU_PROPERTY_X86_ISA_1_SSE3, "SSE3");
4082 DumpBit(GNU_PROPERTY_X86_ISA_1_SSSE3, "SSSE3");
4083 DumpBit(GNU_PROPERTY_X86_ISA_1_SSE4_1, "SSE4_1");
4084 DumpBit(GNU_PROPERTY_X86_ISA_1_SSE4_2, "SSE4_2");
4085 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX, "AVX");
4086 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX2, "AVX2");
4087 DumpBit(GNU_PROPERTY_X86_ISA_1_FMA, "FMA");
4088 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512F, "AVX512F");
4089 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512CD, "AVX512CD");
4090 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512ER, "AVX512ER");
4091 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512PF, "AVX512PF");
4092 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512VL, "AVX512VL");
4093 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512DQ, "AVX512DQ");
4094 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512BW, "AVX512BW");
4095 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_4FMAPS, "AVX512_4FMAPS");
4096 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_4VNNIW, "AVX512_4VNNIW");
4097 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_BITALG, "AVX512_BITALG");
4098 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_IFMA, "AVX512_IFMA");
4099 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_VBMI, "AVX512_VBMI");
4100 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_VBMI2, "AVX512_VBMI2");
4101 DumpBit(GNU_PROPERTY_X86_ISA_1_AVX512_VNNI, "AVX512_VNNI");
4102 if (PrData)
4103 OS << format("<unknown flags: 0x%x>", PrData);
4104 return OS.str();
4105 break;
Fangrui Song12d55992019-02-13 01:51:45 +00004106 case GNU_PROPERTY_X86_FEATURE_2_NEEDED:
4107 case GNU_PROPERTY_X86_FEATURE_2_USED:
4108 OS << "x86 feature "
4109 << (Type == GNU_PROPERTY_X86_FEATURE_2_NEEDED ? "needed: " : "used: ");
4110 if (DataSize != 4) {
4111 OS << format("<corrupt length: 0x%x>", DataSize);
4112 return OS.str();
Alexander Ivchenkoab60a282018-06-04 15:14:18 +00004113 }
Fangrui Song6a03b932019-02-13 15:58:23 +00004114 PrData = support::endian::read32<ELFT::TargetEndianness>(Data.data());
4115 if (PrData == 0) {
Fangrui Song12d55992019-02-13 01:51:45 +00004116 OS << "<None>";
4117 return OS.str();
Alexander Ivchenkoab60a282018-06-04 15:14:18 +00004118 }
Fangrui Song12d55992019-02-13 01:51:45 +00004119 DumpBit(GNU_PROPERTY_X86_FEATURE_2_X86, "x86");
4120 DumpBit(GNU_PROPERTY_X86_FEATURE_2_X87, "x87");
4121 DumpBit(GNU_PROPERTY_X86_FEATURE_2_MMX, "MMX");
4122 DumpBit(GNU_PROPERTY_X86_FEATURE_2_XMM, "XMM");
4123 DumpBit(GNU_PROPERTY_X86_FEATURE_2_YMM, "YMM");
4124 DumpBit(GNU_PROPERTY_X86_FEATURE_2_ZMM, "ZMM");
4125 DumpBit(GNU_PROPERTY_X86_FEATURE_2_FXSR, "FXSR");
4126 DumpBit(GNU_PROPERTY_X86_FEATURE_2_XSAVE, "XSAVE");
4127 DumpBit(GNU_PROPERTY_X86_FEATURE_2_XSAVEOPT, "XSAVEOPT");
4128 DumpBit(GNU_PROPERTY_X86_FEATURE_2_XSAVEC, "XSAVEC");
Fangrui Song6a03b932019-02-13 15:58:23 +00004129 if (PrData)
4130 OS << format("<unknown flags: 0x%x>", PrData);
Jordan Rupprecht4f36c7a2018-11-07 23:53:50 +00004131 return OS.str();
George Rimar6a14c022018-03-21 08:34:55 +00004132 }
4133}
4134
4135template <typename ELFT>
George Rimar9e88a262019-05-14 14:22:44 +00004136static SmallVector<std::string, 4> getGNUPropertyList(ArrayRef<uint8_t> Arr) {
George Rimar6a14c022018-03-21 08:34:55 +00004137 using Elf_Word = typename ELFT::Word;
4138
Jordan Rupprecht4f36c7a2018-11-07 23:53:50 +00004139 SmallVector<std::string, 4> Properties;
Jordan Rupprecht4f36c7a2018-11-07 23:53:50 +00004140 while (Arr.size() >= 8) {
4141 uint32_t Type = *reinterpret_cast<const Elf_Word *>(Arr.data());
4142 uint32_t DataSize = *reinterpret_cast<const Elf_Word *>(Arr.data() + 4);
4143 Arr = Arr.drop_front(8);
4144
4145 // Take padding size into account if present.
4146 uint64_t PaddedSize = alignTo(DataSize, sizeof(typename ELFT::uint));
4147 std::string str;
4148 raw_string_ostream OS(str);
4149 if (Arr.size() < PaddedSize) {
4150 OS << format("<corrupt type (0x%x) datasz: 0x%x>", Type, DataSize);
4151 Properties.push_back(OS.str());
4152 break;
4153 }
4154 Properties.push_back(
4155 getGNUProperty<ELFT>(Type, DataSize, Arr.take_front(PaddedSize)));
4156 Arr = Arr.drop_front(PaddedSize);
4157 }
4158
4159 if (!Arr.empty())
4160 Properties.push_back("<corrupted GNU_PROPERTY_TYPE_0>");
4161
4162 return Properties;
4163}
4164
4165struct GNUAbiTag {
4166 std::string OSName;
4167 std::string ABI;
4168 bool IsValid;
4169};
4170
George Rimar9e88a262019-05-14 14:22:44 +00004171template <typename ELFT> static GNUAbiTag getGNUAbiTag(ArrayRef<uint8_t> Desc) {
Jake Ehrlichee7ec6c2018-11-13 01:10:35 +00004172 typedef typename ELFT::Word Elf_Word;
4173
George Rimar9e88a262019-05-14 14:22:44 +00004174 ArrayRef<Elf_Word> Words(reinterpret_cast<const Elf_Word *>(Desc.begin()),
4175 reinterpret_cast<const Elf_Word *>(Desc.end()));
Jake Ehrlichee7ec6c2018-11-13 01:10:35 +00004176
Jordan Rupprecht4f36c7a2018-11-07 23:53:50 +00004177 if (Words.size() < 4)
4178 return {"", "", /*IsValid=*/false};
4179
4180 static const char *OSNames[] = {
4181 "Linux", "Hurd", "Solaris", "FreeBSD", "NetBSD", "Syllable", "NaCl",
4182 };
4183 StringRef OSName = "Unknown";
4184 if (Words[0] < array_lengthof(OSNames))
4185 OSName = OSNames[Words[0]];
4186 uint32_t Major = Words[1], Minor = Words[2], Patch = Words[3];
4187 std::string str;
4188 raw_string_ostream ABI(str);
4189 ABI << Major << "." << Minor << "." << Patch;
4190 return {OSName, ABI.str(), /*IsValid=*/true};
4191}
4192
Jake Ehrlichee7ec6c2018-11-13 01:10:35 +00004193static std::string getGNUBuildId(ArrayRef<uint8_t> Desc) {
Jordan Rupprecht4f36c7a2018-11-07 23:53:50 +00004194 std::string str;
4195 raw_string_ostream OS(str);
Jake Ehrlichee7ec6c2018-11-13 01:10:35 +00004196 for (const auto &B : Desc)
Jordan Rupprecht4f36c7a2018-11-07 23:53:50 +00004197 OS << format_hex_no_prefix(B, 2);
4198 return OS.str();
4199}
4200
Jake Ehrlichee7ec6c2018-11-13 01:10:35 +00004201static StringRef getGNUGoldVersion(ArrayRef<uint8_t> Desc) {
4202 return StringRef(reinterpret_cast<const char *>(Desc.data()), Desc.size());
Jordan Rupprecht4f36c7a2018-11-07 23:53:50 +00004203}
4204
4205template <typename ELFT>
4206static void printGNUNote(raw_ostream &OS, uint32_t NoteType,
Jake Ehrlichee7ec6c2018-11-13 01:10:35 +00004207 ArrayRef<uint8_t> Desc) {
Saleem Abdulrasool6a405442016-08-30 18:52:02 +00004208 switch (NoteType) {
4209 default:
4210 return;
4211 case ELF::NT_GNU_ABI_TAG: {
Jake Ehrlichee7ec6c2018-11-13 01:10:35 +00004212 const GNUAbiTag &AbiTag = getGNUAbiTag<ELFT>(Desc);
Jordan Rupprecht4f36c7a2018-11-07 23:53:50 +00004213 if (!AbiTag.IsValid)
Saleem Abdulrasool6a405442016-08-30 18:52:02 +00004214 OS << " <corrupt GNU_ABI_TAG>";
4215 else
Jordan Rupprecht4f36c7a2018-11-07 23:53:50 +00004216 OS << " OS: " << AbiTag.OSName << ", ABI: " << AbiTag.ABI;
Saleem Abdulrasool6a405442016-08-30 18:52:02 +00004217 break;
4218 }
4219 case ELF::NT_GNU_BUILD_ID: {
Jake Ehrlichee7ec6c2018-11-13 01:10:35 +00004220 OS << " Build ID: " << getGNUBuildId(Desc);
Saleem Abdulrasool6a405442016-08-30 18:52:02 +00004221 break;
4222 }
4223 case ELF::NT_GNU_GOLD_VERSION:
Jake Ehrlichee7ec6c2018-11-13 01:10:35 +00004224 OS << " Version: " << getGNUGoldVersion(Desc);
Saleem Abdulrasool6a405442016-08-30 18:52:02 +00004225 break;
George Rimar6a14c022018-03-21 08:34:55 +00004226 case ELF::NT_GNU_PROPERTY_TYPE_0:
4227 OS << " Properties:";
Jake Ehrlichee7ec6c2018-11-13 01:10:35 +00004228 for (const auto &Property : getGNUPropertyList<ELFT>(Desc))
Jordan Rupprecht4f36c7a2018-11-07 23:53:50 +00004229 OS << " " << Property << "\n";
George Rimar6a14c022018-03-21 08:34:55 +00004230 break;
4231 }
Saleem Abdulrasool6a405442016-08-30 18:52:02 +00004232 OS << '\n';
4233}
4234
Scott Linderf5b36e52018-12-12 19:39:27 +00004235struct AMDNote {
4236 std::string Type;
4237 std::string Value;
Jordan Rupprecht4f36c7a2018-11-07 23:53:50 +00004238};
4239
Konstantin Zhuravlyovb3c605d2017-10-14 18:21:42 +00004240template <typename ELFT>
Scott Linderf5b36e52018-12-12 19:39:27 +00004241static AMDNote getAMDNote(uint32_t NoteType, ArrayRef<uint8_t> Desc) {
Konstantin Zhuravlyovb3c605d2017-10-14 18:21:42 +00004242 switch (NoteType) {
4243 default:
Jordan Rupprecht4f36c7a2018-11-07 23:53:50 +00004244 return {"", ""};
4245 case ELF::NT_AMD_AMDGPU_HSA_METADATA:
George Rimar9e88a262019-05-14 14:22:44 +00004246 return {
4247 "HSA Metadata",
4248 std::string(reinterpret_cast<const char *>(Desc.data()), Desc.size())};
Jordan Rupprecht4f36c7a2018-11-07 23:53:50 +00004249 case ELF::NT_AMD_AMDGPU_ISA:
George Rimar9e88a262019-05-14 14:22:44 +00004250 return {
4251 "ISA Version",
4252 std::string(reinterpret_cast<const char *>(Desc.data()), Desc.size())};
Konstantin Zhuravlyovb3c605d2017-10-14 18:21:42 +00004253 }
Konstantin Zhuravlyovb3c605d2017-10-14 18:21:42 +00004254}
4255
Scott Linderf5b36e52018-12-12 19:39:27 +00004256struct AMDGPUNote {
4257 std::string Type;
4258 std::string Value;
4259};
4260
4261template <typename ELFT>
4262static AMDGPUNote getAMDGPUNote(uint32_t NoteType, ArrayRef<uint8_t> Desc) {
4263 switch (NoteType) {
4264 default:
4265 return {"", ""};
Tim Renoufed0b9af2019-03-13 18:55:50 +00004266 case ELF::NT_AMDGPU_METADATA: {
Scott Linderf5b36e52018-12-12 19:39:27 +00004267 auto MsgPackString =
4268 StringRef(reinterpret_cast<const char *>(Desc.data()), Desc.size());
Tim Renoufed0b9af2019-03-13 18:55:50 +00004269 msgpack::Document MsgPackDoc;
4270 if (!MsgPackDoc.readFromBlob(MsgPackString, /*Multi=*/false))
Scott Linderf5b36e52018-12-12 19:39:27 +00004271 return {"AMDGPU Metadata", "Invalid AMDGPU Metadata"};
Scott Linderf5b36e52018-12-12 19:39:27 +00004272
4273 AMDGPU::HSAMD::V3::MetadataVerifier Verifier(true);
Tim Renoufed0b9af2019-03-13 18:55:50 +00004274 if (!Verifier.verify(MsgPackDoc.getRoot()))
Scott Linderf5b36e52018-12-12 19:39:27 +00004275 return {"AMDGPU Metadata", "Invalid AMDGPU Metadata"};
4276
4277 std::string HSAMetadataString;
4278 raw_string_ostream StrOS(HSAMetadataString);
Tim Renoufed0b9af2019-03-13 18:55:50 +00004279 MsgPackDoc.toYAML(StrOS);
Scott Linderf5b36e52018-12-12 19:39:27 +00004280
4281 return {"AMDGPU Metadata", StrOS.str()};
4282 }
Tim Renoufed0b9af2019-03-13 18:55:50 +00004283 }
Scott Linderf5b36e52018-12-12 19:39:27 +00004284}
4285
Saleem Abdulrasool6a405442016-08-30 18:52:02 +00004286template <class ELFT>
4287void GNUStyle<ELFT>::printNotes(const ELFFile<ELFT> *Obj) {
Scott Linder77a5f212018-03-12 19:28:50 +00004288 auto PrintHeader = [&](const typename ELFT::Off Offset,
4289 const typename ELFT::Addr Size) {
Saleem Abdulrasool6a405442016-08-30 18:52:02 +00004290 OS << "Displaying notes found at file offset " << format_hex(Offset, 10)
4291 << " with length " << format_hex(Size, 10) << ":\n"
4292 << " Owner Data size\tDescription\n";
Scott Linder77a5f212018-03-12 19:28:50 +00004293 };
Saleem Abdulrasool6a405442016-08-30 18:52:02 +00004294
Scott Linder77a5f212018-03-12 19:28:50 +00004295 auto ProcessNote = [&](const Elf_Note &Note) {
4296 StringRef Name = Note.getName();
Jake Ehrlichee7ec6c2018-11-13 01:10:35 +00004297 ArrayRef<uint8_t> Descriptor = Note.getDesc();
Scott Linder77a5f212018-03-12 19:28:50 +00004298 Elf_Word Type = Note.getType();
Saleem Abdulrasool6a405442016-08-30 18:52:02 +00004299
Scott Linder77a5f212018-03-12 19:28:50 +00004300 OS << " " << Name << std::string(22 - Name.size(), ' ')
4301 << format_hex(Descriptor.size(), 10) << '\t';
Saleem Abdulrasool6a405442016-08-30 18:52:02 +00004302
Scott Linder77a5f212018-03-12 19:28:50 +00004303 if (Name == "GNU") {
4304 OS << getGNUNoteTypeName(Type) << '\n';
Jordan Rupprecht4f36c7a2018-11-07 23:53:50 +00004305 printGNUNote<ELFT>(OS, Type, Descriptor);
Scott Linder77a5f212018-03-12 19:28:50 +00004306 } else if (Name == "FreeBSD") {
4307 OS << getFreeBSDNoteTypeName(Type) << '\n';
4308 } else if (Name == "AMD") {
Scott Linderf5b36e52018-12-12 19:39:27 +00004309 OS << getAMDNoteTypeName(Type) << '\n';
4310 const AMDNote N = getAMDNote<ELFT>(Type, Descriptor);
4311 if (!N.Type.empty())
4312 OS << " " << N.Type << ":\n " << N.Value << '\n';
4313 } else if (Name == "AMDGPU") {
Scott Linder77a5f212018-03-12 19:28:50 +00004314 OS << getAMDGPUNoteTypeName(Type) << '\n';
Jordan Rupprecht4f36c7a2018-11-07 23:53:50 +00004315 const AMDGPUNote N = getAMDGPUNote<ELFT>(Type, Descriptor);
Scott Linderf5b36e52018-12-12 19:39:27 +00004316 if (!N.Type.empty())
4317 OS << " " << N.Type << ":\n " << N.Value << '\n';
Scott Linder77a5f212018-03-12 19:28:50 +00004318 } else {
Jordan Rupprechtd884fbd2019-08-05 15:43:20 +00004319 StringRef NoteType = Obj->getHeader()->e_type == ELF::ET_CORE
4320 ? getCoreNoteTypeName(Type)
4321 : getGenericNoteTypeName(Type);
Jordan Rupprecht871baa22019-03-29 16:48:19 +00004322 if (!NoteType.empty())
4323 OS << NoteType;
4324 else
4325 OS << "Unknown note type: (" << format_hex(Type, 10) << ')';
Saleem Abdulrasool6a405442016-08-30 18:52:02 +00004326 }
Scott Linder77a5f212018-03-12 19:28:50 +00004327 OS << '\n';
Saleem Abdulrasool6a405442016-08-30 18:52:02 +00004328 };
4329
George Rimar1206f5a2019-01-30 15:39:05 +00004330 if (Obj->getHeader()->e_type == ELF::ET_CORE) {
Scott Linder77a5f212018-03-12 19:28:50 +00004331 for (const auto &P : unwrapOrError(Obj->program_headers())) {
4332 if (P.p_type != PT_NOTE)
4333 continue;
4334 PrintHeader(P.p_offset, P.p_filesz);
4335 Error Err = Error::success();
4336 for (const auto &Note : Obj->notes(P, Err))
4337 ProcessNote(Note);
4338 if (Err)
4339 error(std::move(Err));
4340 }
Saleem Abdulrasool6a405442016-08-30 18:52:02 +00004341 } else {
Scott Linder77a5f212018-03-12 19:28:50 +00004342 for (const auto &S : unwrapOrError(Obj->sections())) {
4343 if (S.sh_type != SHT_NOTE)
4344 continue;
4345 PrintHeader(S.sh_offset, S.sh_size);
4346 Error Err = Error::success();
4347 for (const auto &Note : Obj->notes(S, Err))
4348 ProcessNote(Note);
4349 if (Err)
4350 error(std::move(Err));
4351 }
Saleem Abdulrasool6a405442016-08-30 18:52:02 +00004352 }
4353}
4354
Simon Atanasyan62d32592017-12-21 10:26:02 +00004355template <class ELFT>
Saleem Abdulrasoolb36fbbc2018-01-30 16:29:29 +00004356void GNUStyle<ELFT>::printELFLinkerOptions(const ELFFile<ELFT> *Obj) {
4357 OS << "printELFLinkerOptions not implemented!\n";
4358}
4359
4360template <class ELFT>
Simon Atanasyan62d32592017-12-21 10:26:02 +00004361void GNUStyle<ELFT>::printMipsGOT(const MipsGOTParser<ELFT> &Parser) {
4362 size_t Bias = ELFT::Is64Bits ? 8 : 0;
4363 auto PrintEntry = [&](const Elf_Addr *E, StringRef Purpose) {
4364 OS.PadToColumn(2);
4365 OS << format_hex_no_prefix(Parser.getGotAddress(E), 8 + Bias);
4366 OS.PadToColumn(11 + Bias);
4367 OS << format_decimal(Parser.getGotOffset(E), 6) << "(gp)";
4368 OS.PadToColumn(22 + Bias);
4369 OS << format_hex_no_prefix(*E, 8 + Bias);
4370 OS.PadToColumn(31 + 2 * Bias);
4371 OS << Purpose << "\n";
4372 };
4373
4374 OS << (Parser.IsStatic ? "Static GOT:\n" : "Primary GOT:\n");
4375 OS << " Canonical gp value: "
4376 << format_hex_no_prefix(Parser.getGp(), 8 + Bias) << "\n\n";
4377
4378 OS << " Reserved entries:\n";
Simon Atanasyane4f01ec2019-05-24 10:26:48 +00004379 if (ELFT::Is64Bits)
4380 OS << " Address Access Initial Purpose\n";
4381 else
4382 OS << " Address Access Initial Purpose\n";
Simon Atanasyan62d32592017-12-21 10:26:02 +00004383 PrintEntry(Parser.getGotLazyResolver(), "Lazy resolver");
4384 if (Parser.getGotModulePointer())
4385 PrintEntry(Parser.getGotModulePointer(), "Module pointer (GNU extension)");
4386
4387 if (!Parser.getLocalEntries().empty()) {
4388 OS << "\n";
4389 OS << " Local entries:\n";
Simon Atanasyane4f01ec2019-05-24 10:26:48 +00004390 if (ELFT::Is64Bits)
4391 OS << " Address Access Initial\n";
4392 else
4393 OS << " Address Access Initial\n";
Simon Atanasyan62d32592017-12-21 10:26:02 +00004394 for (auto &E : Parser.getLocalEntries())
4395 PrintEntry(&E, "");
4396 }
4397
4398 if (Parser.IsStatic)
4399 return;
4400
4401 if (!Parser.getGlobalEntries().empty()) {
4402 OS << "\n";
4403 OS << " Global entries:\n";
Simon Atanasyane4f01ec2019-05-24 10:26:48 +00004404 if (ELFT::Is64Bits)
4405 OS << " Address Access Initial Sym.Val."
4406 << " Type Ndx Name\n";
4407 else
4408 OS << " Address Access Initial Sym.Val. Type Ndx Name\n";
Simon Atanasyan62d32592017-12-21 10:26:02 +00004409 for (auto &E : Parser.getGlobalEntries()) {
4410 const Elf_Sym *Sym = Parser.getGotSym(&E);
4411 std::string SymName = this->dumper()->getFullSymbolName(
4412 Sym, this->dumper()->getDynamicStringTable(), false);
4413
4414 OS.PadToColumn(2);
4415 OS << to_string(format_hex_no_prefix(Parser.getGotAddress(&E), 8 + Bias));
4416 OS.PadToColumn(11 + Bias);
4417 OS << to_string(format_decimal(Parser.getGotOffset(&E), 6)) + "(gp)";
4418 OS.PadToColumn(22 + Bias);
4419 OS << to_string(format_hex_no_prefix(E, 8 + Bias));
4420 OS.PadToColumn(31 + 2 * Bias);
4421 OS << to_string(format_hex_no_prefix(Sym->st_value, 8 + Bias));
4422 OS.PadToColumn(40 + 3 * Bias);
4423 OS << printEnum(Sym->getType(), makeArrayRef(ElfSymbolTypes));
4424 OS.PadToColumn(48 + 3 * Bias);
4425 OS << getSymbolSectionNdx(Parser.Obj, Sym,
4426 this->dumper()->dynamic_symbols().begin());
4427 OS.PadToColumn(52 + 3 * Bias);
4428 OS << SymName << "\n";
4429 }
4430 }
4431
4432 if (!Parser.getOtherEntries().empty())
4433 OS << "\n Number of TLS and multi-GOT entries "
4434 << Parser.getOtherEntries().size() << "\n";
4435}
4436
4437template <class ELFT>
4438void GNUStyle<ELFT>::printMipsPLT(const MipsGOTParser<ELFT> &Parser) {
4439 size_t Bias = ELFT::Is64Bits ? 8 : 0;
4440 auto PrintEntry = [&](const Elf_Addr *E, StringRef Purpose) {
4441 OS.PadToColumn(2);
Hans Wennborg5b861632019-05-28 11:24:20 +00004442 OS << format_hex_no_prefix(Parser.getPltAddress(E), 8 + Bias);
Simon Atanasyan62d32592017-12-21 10:26:02 +00004443 OS.PadToColumn(11 + Bias);
4444 OS << format_hex_no_prefix(*E, 8 + Bias);
4445 OS.PadToColumn(20 + 2 * Bias);
4446 OS << Purpose << "\n";
4447 };
4448
4449 OS << "PLT GOT:\n\n";
4450
4451 OS << " Reserved entries:\n";
4452 OS << " Address Initial Purpose\n";
4453 PrintEntry(Parser.getPltLazyResolver(), "PLT lazy resolver");
4454 if (Parser.getPltModulePointer())
Hans Wennborg5b861632019-05-28 11:24:20 +00004455 PrintEntry(Parser.getPltModulePointer(), "Module pointer");
Simon Atanasyan62d32592017-12-21 10:26:02 +00004456
4457 if (!Parser.getPltEntries().empty()) {
4458 OS << "\n";
4459 OS << " Entries:\n";
4460 OS << " Address Initial Sym.Val. Type Ndx Name\n";
4461 for (auto &E : Parser.getPltEntries()) {
4462 const Elf_Sym *Sym = Parser.getPltSym(&E);
4463 std::string SymName = this->dumper()->getFullSymbolName(
4464 Sym, this->dumper()->getDynamicStringTable(), false);
4465
4466 OS.PadToColumn(2);
Hans Wennborg5b861632019-05-28 11:24:20 +00004467 OS << to_string(format_hex_no_prefix(Parser.getPltAddress(&E), 8 + Bias));
Simon Atanasyan62d32592017-12-21 10:26:02 +00004468 OS.PadToColumn(11 + Bias);
4469 OS << to_string(format_hex_no_prefix(E, 8 + Bias));
4470 OS.PadToColumn(20 + 2 * Bias);
4471 OS << to_string(format_hex_no_prefix(Sym->st_value, 8 + Bias));
4472 OS.PadToColumn(29 + 3 * Bias);
4473 OS << printEnum(Sym->getType(), makeArrayRef(ElfSymbolTypes));
4474 OS.PadToColumn(37 + 3 * Bias);
4475 OS << getSymbolSectionNdx(Parser.Obj, Sym,
4476 this->dumper()->dynamic_symbols().begin());
4477 OS.PadToColumn(41 + 3 * Bias);
4478 OS << SymName << "\n";
4479 }
4480 }
4481}
4482
Hemant Kulkarnic030f232016-03-15 17:25:31 +00004483template <class ELFT> void LLVMStyle<ELFT>::printFileHeaders(const ELFO *Obj) {
George Rimar1206f5a2019-01-30 15:39:05 +00004484 const Elf_Ehdr *E = Obj->getHeader();
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +00004485 {
4486 DictScope D(W, "ElfHeader");
4487 {
4488 DictScope D(W, "Ident");
George Rimar1206f5a2019-01-30 15:39:05 +00004489 W.printBinary("Magic", makeArrayRef(E->e_ident).slice(ELF::EI_MAG0, 4));
4490 W.printEnum("Class", E->e_ident[ELF::EI_CLASS], makeArrayRef(ElfClass));
4491 W.printEnum("DataEncoding", E->e_ident[ELF::EI_DATA],
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +00004492 makeArrayRef(ElfDataEncoding));
George Rimar1206f5a2019-01-30 15:39:05 +00004493 W.printNumber("FileVersion", E->e_ident[ELF::EI_VERSION]);
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +00004494
Konstantin Zhuravlyov121125f2017-10-02 20:49:58 +00004495 auto OSABI = makeArrayRef(ElfOSABI);
George Rimar1206f5a2019-01-30 15:39:05 +00004496 if (E->e_ident[ELF::EI_OSABI] >= ELF::ELFOSABI_FIRST_ARCH &&
4497 E->e_ident[ELF::EI_OSABI] <= ELF::ELFOSABI_LAST_ARCH) {
4498 switch (E->e_machine) {
Konstantin Zhuravlyov121125f2017-10-02 20:49:58 +00004499 case ELF::EM_AMDGPU:
4500 OSABI = makeArrayRef(AMDGPUElfOSABI);
4501 break;
4502 case ELF::EM_ARM:
4503 OSABI = makeArrayRef(ARMElfOSABI);
4504 break;
4505 case ELF::EM_TI_C6000:
4506 OSABI = makeArrayRef(C6000ElfOSABI);
4507 break;
4508 }
4509 }
George Rimar1206f5a2019-01-30 15:39:05 +00004510 W.printEnum("OS/ABI", E->e_ident[ELF::EI_OSABI], OSABI);
4511 W.printNumber("ABIVersion", E->e_ident[ELF::EI_ABIVERSION]);
4512 W.printBinary("Unused", makeArrayRef(E->e_ident).slice(ELF::EI_PAD));
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +00004513 }
4514
George Rimar1206f5a2019-01-30 15:39:05 +00004515 W.printEnum("Type", E->e_type, makeArrayRef(ElfObjectFileType));
4516 W.printEnum("Machine", E->e_machine, makeArrayRef(ElfMachineType));
4517 W.printNumber("Version", E->e_version);
4518 W.printHex("Entry", E->e_entry);
4519 W.printHex("ProgramHeaderOffset", E->e_phoff);
4520 W.printHex("SectionHeaderOffset", E->e_shoff);
4521 if (E->e_machine == EM_MIPS)
4522 W.printFlags("Flags", E->e_flags, makeArrayRef(ElfHeaderMipsFlags),
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +00004523 unsigned(ELF::EF_MIPS_ARCH), unsigned(ELF::EF_MIPS_ABI),
4524 unsigned(ELF::EF_MIPS_MACH));
George Rimar1206f5a2019-01-30 15:39:05 +00004525 else if (E->e_machine == EM_AMDGPU)
4526 W.printFlags("Flags", E->e_flags, makeArrayRef(ElfHeaderAMDGPUFlags),
Konstantin Zhuravlyov9122a632018-02-16 22:33:59 +00004527 unsigned(ELF::EF_AMDGPU_MACH));
George Rimar1206f5a2019-01-30 15:39:05 +00004528 else if (E->e_machine == EM_RISCV)
4529 W.printFlags("Flags", E->e_flags, makeArrayRef(ElfHeaderRISCVFlags));
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +00004530 else
George Rimar1206f5a2019-01-30 15:39:05 +00004531 W.printFlags("Flags", E->e_flags);
4532 W.printNumber("HeaderSize", E->e_ehsize);
4533 W.printNumber("ProgramHeaderEntrySize", E->e_phentsize);
4534 W.printNumber("ProgramHeaderCount", E->e_phnum);
4535 W.printNumber("SectionHeaderEntrySize", E->e_shentsize);
George Rimar6fdac3b2018-07-18 08:19:58 +00004536 W.printString("SectionHeaderCount", getSectionHeadersNumString(Obj));
George Rimar9e88a262019-05-14 14:22:44 +00004537 W.printString("StringTableSectionIndex",
4538 getSectionHeaderTableIndexString(Obj));
Hemant Kulkarnid8a985e2016-02-10 20:40:55 +00004539 }
4540}
Hemant Kulkarni206ba842016-03-09 19:16:13 +00004541
4542template <class ELFT>
4543void LLVMStyle<ELFT>::printGroupSections(const ELFO *Obj) {
4544 DictScope Lists(W, "Groups");
George Rimarea39eed2017-09-14 07:32:52 +00004545 std::vector<GroupSection> V = getGroups<ELFT>(Obj);
George Rimar762abff62017-09-16 14:29:51 +00004546 DenseMap<uint64_t, const GroupSection *> Map = mapSectionsToGroups(V);
George Rimarea39eed2017-09-14 07:32:52 +00004547 for (const GroupSection &G : V) {
4548 DictScope D(W, "Group");
4549 W.printNumber("Name", G.Name, G.ShName);
4550 W.printNumber("Index", G.Index);
Alexander Shaposhnikov8febe3d2018-03-12 22:40:09 +00004551 W.printNumber("Link", G.Link);
4552 W.printNumber("Info", G.Info);
George Rimarea39eed2017-09-14 07:32:52 +00004553 W.printHex("Type", getGroupType(G.Type), G.Type);
4554 W.startLine() << "Signature: " << G.Signature << "\n";
4555
4556 ListScope L(W, "Section(s) in group");
George Rimar762abff62017-09-16 14:29:51 +00004557 for (const GroupMember &GM : G.Members) {
4558 const GroupSection *MainGroup = Map[GM.Index];
4559 if (MainGroup != &G) {
4560 W.flush();
4561 errs() << "Error: " << GM.Name << " (" << GM.Index
4562 << ") in a group " + G.Name + " (" << G.Index
4563 << ") is already in a group " + MainGroup->Name + " ("
4564 << MainGroup->Index << ")\n";
4565 errs().flush();
4566 continue;
4567 }
George Rimarea39eed2017-09-14 07:32:52 +00004568 W.startLine() << GM.Name << " (" << GM.Index << ")\n";
George Rimar762abff62017-09-16 14:29:51 +00004569 }
Hemant Kulkarni206ba842016-03-09 19:16:13 +00004570 }
George Rimarea39eed2017-09-14 07:32:52 +00004571
4572 if (V.empty())
Hemant Kulkarni206ba842016-03-09 19:16:13 +00004573 W.startLine() << "There are no group sections in the file.\n";
4574}
George Rimar762abff62017-09-16 14:29:51 +00004575
Hemant Kulkarnic030f232016-03-15 17:25:31 +00004576template <class ELFT> void LLVMStyle<ELFT>::printRelocations(const ELFO *Obj) {
4577 ListScope D(W, "Relocations");
4578
4579 int SectionNumber = -1;
Rafael Espindola25be8c82016-11-02 14:10:57 +00004580 for (const Elf_Shdr &Sec : unwrapOrError(Obj->sections())) {
Hemant Kulkarnic030f232016-03-15 17:25:31 +00004581 ++SectionNumber;
4582
George Rimar9e88a262019-05-14 14:22:44 +00004583 if (Sec.sh_type != ELF::SHT_REL && Sec.sh_type != ELF::SHT_RELA &&
4584 Sec.sh_type != ELF::SHT_RELR && Sec.sh_type != ELF::SHT_ANDROID_REL &&
Jake Ehrlich0f440d82018-06-28 21:07:34 +00004585 Sec.sh_type != ELF::SHT_ANDROID_RELA &&
4586 Sec.sh_type != ELF::SHT_ANDROID_RELR)
Hemant Kulkarnic030f232016-03-15 17:25:31 +00004587 continue;
4588
4589 StringRef Name = unwrapOrError(Obj->getSectionName(&Sec));
4590
4591 W.startLine() << "Section (" << SectionNumber << ") " << Name << " {\n";
4592 W.indent();
4593
4594 printRelocations(&Sec, Obj);
4595
4596 W.unindent();
4597 W.startLine() << "}\n";
4598 }
4599}
4600
4601template <class ELFT>
4602void LLVMStyle<ELFT>::printRelocations(const Elf_Shdr *Sec, const ELFO *Obj) {
4603 const Elf_Shdr *SymTab = unwrapOrError(Obj->getSection(Sec->sh_link));
4604
4605 switch (Sec->sh_type) {
4606 case ELF::SHT_REL:
Rafael Espindola354680a2016-11-03 19:07:15 +00004607 for (const Elf_Rel &R : unwrapOrError(Obj->rels(Sec))) {
Hemant Kulkarnic030f232016-03-15 17:25:31 +00004608 Elf_Rela Rela;
4609 Rela.r_offset = R.r_offset;
4610 Rela.r_info = R.r_info;
4611 Rela.r_addend = 0;
4612 printRelocation(Obj, Rela, SymTab);
4613 }
4614 break;
4615 case ELF::SHT_RELA:
Rafael Espindola354680a2016-11-03 19:07:15 +00004616 for (const Elf_Rela &R : unwrapOrError(Obj->relas(Sec)))
Hemant Kulkarnic030f232016-03-15 17:25:31 +00004617 printRelocation(Obj, R, SymTab);
4618 break;
Jake Ehrlich0f440d82018-06-28 21:07:34 +00004619 case ELF::SHT_RELR:
4620 case ELF::SHT_ANDROID_RELR: {
4621 Elf_Relr_Range Relrs = unwrapOrError(Obj->relrs(Sec));
4622 if (opts::RawRelr) {
4623 for (const Elf_Relr &R : Relrs)
4624 W.startLine() << W.hex(R) << "\n";
4625 } else {
4626 std::vector<Elf_Rela> RelrRelas = unwrapOrError(Obj->decode_relrs(Relrs));
4627 for (const Elf_Rela &R : RelrRelas)
4628 printRelocation(Obj, R, SymTab);
4629 }
4630 break;
4631 }
Peter Collingbourne689e6c052017-10-25 03:37:12 +00004632 case ELF::SHT_ANDROID_REL:
4633 case ELF::SHT_ANDROID_RELA:
4634 for (const Elf_Rela &R : unwrapOrError(Obj->android_relas(Sec)))
4635 printRelocation(Obj, R, SymTab);
4636 break;
Hemant Kulkarnic030f232016-03-15 17:25:31 +00004637 }
4638}
4639
4640template <class ELFT>
4641void LLVMStyle<ELFT>::printRelocation(const ELFO *Obj, Elf_Rela Rel,
4642 const Elf_Shdr *SymTab) {
4643 SmallString<32> RelocName;
4644 Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName);
James Hendersone50d9cb2019-01-17 15:34:12 +00004645 std::string TargetName;
Rafael Espindolaed1395a2016-11-03 18:05:33 +00004646 const Elf_Sym *Sym = unwrapOrError(Obj->getRelocationSymbol(&Rel, SymTab));
Hemant Kulkarnic030f232016-03-15 17:25:31 +00004647 if (Sym && Sym->getType() == ELF::STT_SECTION) {
4648 const Elf_Shdr *Sec = unwrapOrError(
4649 Obj->getSection(Sym, SymTab, this->dumper()->getShndxTable()));
4650 TargetName = unwrapOrError(Obj->getSectionName(Sec));
4651 } else if (Sym) {
4652 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*SymTab));
Xing GUOeec32062019-03-12 14:30:13 +00004653 TargetName = this->dumper()->getFullSymbolName(
4654 Sym, StrTable, SymTab->sh_type == SHT_DYNSYM /* IsDynamic */);
Hemant Kulkarnic030f232016-03-15 17:25:31 +00004655 }
4656
4657 if (opts::ExpandRelocs) {
4658 DictScope Group(W, "Relocation");
4659 W.printHex("Offset", Rel.r_offset);
4660 W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL()));
Eugene Zelenko416e0592017-06-09 21:41:54 +00004661 W.printNumber("Symbol", !TargetName.empty() ? TargetName : "-",
Hemant Kulkarnic030f232016-03-15 17:25:31 +00004662 Rel.getSymbol(Obj->isMips64EL()));
4663 W.printHex("Addend", Rel.r_addend);
4664 } else {
4665 raw_ostream &OS = W.startLine();
4666 OS << W.hex(Rel.r_offset) << " " << RelocName << " "
George Rimar9e88a262019-05-14 14:22:44 +00004667 << (!TargetName.empty() ? TargetName : "-") << " " << W.hex(Rel.r_addend)
4668 << "\n";
Hemant Kulkarnic030f232016-03-15 17:25:31 +00004669 }
4670}
4671
Jordan Rupprechtdbf552c2018-11-12 18:02:38 +00004672template <class ELFT>
4673void LLVMStyle<ELFT>::printSectionHeaders(const ELFO *Obj) {
Hemant Kulkarnic030f232016-03-15 17:25:31 +00004674 ListScope SectionsD(W, "Sections");
4675
4676 int SectionIndex = -1;
George Rimard6df7de2019-06-14 11:56:10 +00004677 ArrayRef<Elf_Shdr> Sections = unwrapOrError(Obj->sections());
George Rimara1370872019-07-16 11:07:30 +00004678 const ELFObjectFile<ELFT> *ElfObj = this->dumper()->getElfObject();
George Rimard6df7de2019-06-14 11:56:10 +00004679 for (const Elf_Shdr &Sec : Sections) {
George Rimara1370872019-07-16 11:07:30 +00004680 StringRef Name = getSectionName(Sec, *ElfObj, Sections);
Hemant Kulkarnic030f232016-03-15 17:25:31 +00004681 DictScope SectionD(W, "Section");
George Rimard6df7de2019-06-14 11:56:10 +00004682 W.printNumber("Index", ++SectionIndex);
Hemant Kulkarnic030f232016-03-15 17:25:31 +00004683 W.printNumber("Name", Name, Sec.sh_name);
Rafael Espindola3ba25732017-05-02 14:04:52 +00004684 W.printHex(
4685 "Type",
4686 object::getELFSectionTypeName(Obj->getHeader()->e_machine, Sec.sh_type),
4687 Sec.sh_type);
Hemant Kulkarnic030f232016-03-15 17:25:31 +00004688 std::vector<EnumEntry<unsigned>> SectionFlags(std::begin(ElfSectionFlags),
4689 std::end(ElfSectionFlags));
4690 switch (Obj->getHeader()->e_machine) {
Prakhar Bahuguna52a7dd72016-12-15 07:59:08 +00004691 case EM_ARM:
4692 SectionFlags.insert(SectionFlags.end(), std::begin(ElfARMSectionFlags),
4693 std::end(ElfARMSectionFlags));
4694 break;
Hemant Kulkarnic030f232016-03-15 17:25:31 +00004695 case EM_HEXAGON:
4696 SectionFlags.insert(SectionFlags.end(),
4697 std::begin(ElfHexagonSectionFlags),
4698 std::end(ElfHexagonSectionFlags));
4699 break;
4700 case EM_MIPS:
4701 SectionFlags.insert(SectionFlags.end(), std::begin(ElfMipsSectionFlags),
4702 std::end(ElfMipsSectionFlags));
4703 break;
4704 case EM_X86_64:
4705 SectionFlags.insert(SectionFlags.end(), std::begin(ElfX86_64SectionFlags),
4706 std::end(ElfX86_64SectionFlags));
4707 break;
George Rimarc13c59a2016-05-21 10:16:58 +00004708 case EM_XCORE:
4709 SectionFlags.insert(SectionFlags.end(), std::begin(ElfXCoreSectionFlags),
4710 std::end(ElfXCoreSectionFlags));
4711 break;
Hemant Kulkarnic030f232016-03-15 17:25:31 +00004712 default:
4713 // Nothing to do.
4714 break;
4715 }
4716 W.printFlags("Flags", Sec.sh_flags, makeArrayRef(SectionFlags));
4717 W.printHex("Address", Sec.sh_addr);
4718 W.printHex("Offset", Sec.sh_offset);
4719 W.printNumber("Size", Sec.sh_size);
4720 W.printNumber("Link", Sec.sh_link);
4721 W.printNumber("Info", Sec.sh_info);
4722 W.printNumber("AddressAlignment", Sec.sh_addralign);
4723 W.printNumber("EntrySize", Sec.sh_entsize);
4724
4725 if (opts::SectionRelocations) {
4726 ListScope D(W, "Relocations");
4727 printRelocations(&Sec, Obj);
4728 }
4729
4730 if (opts::SectionSymbols) {
4731 ListScope D(W, "Symbols");
4732 const Elf_Shdr *Symtab = this->dumper()->getDotSymtabSec();
4733 StringRef StrTable = unwrapOrError(Obj->getStringTableForSymtab(*Symtab));
4734
Rafael Espindola9ea68342016-11-03 13:43:30 +00004735 for (const Elf_Sym &Sym : unwrapOrError(Obj->symbols(Symtab))) {
Hemant Kulkarnic030f232016-03-15 17:25:31 +00004736 const Elf_Shdr *SymSec = unwrapOrError(
4737 Obj->getSection(&Sym, Symtab, this->dumper()->getShndxTable()));
4738 if (SymSec == &Sec)
Rafael Espindola9ea68342016-11-03 13:43:30 +00004739 printSymbol(Obj, &Sym, unwrapOrError(Obj->symbols(Symtab)).begin(),
4740 StrTable, false);
Hemant Kulkarnic030f232016-03-15 17:25:31 +00004741 }
4742 }
4743
4744 if (opts::SectionData && Sec.sh_type != ELF::SHT_NOBITS) {
4745 ArrayRef<uint8_t> Data = unwrapOrError(Obj->getSectionContents(&Sec));
Xing GUO0df95d22019-04-08 11:48:36 +00004746 W.printBinaryBlock(
4747 "SectionData",
4748 StringRef(reinterpret_cast<const char *>(Data.data()), Data.size()));
Hemant Kulkarnic030f232016-03-15 17:25:31 +00004749 }
4750 }
4751}
4752
4753template <class ELFT>
4754void LLVMStyle<ELFT>::printSymbol(const ELFO *Obj, const Elf_Sym *Symbol,
4755 const Elf_Sym *First, StringRef StrTable,
4756 bool IsDynamic) {
4757 unsigned SectionIndex = 0;
4758 StringRef SectionName;
Simon Atanasyan62d32592017-12-21 10:26:02 +00004759 this->dumper()->getSectionNameIndex(Symbol, First, SectionName, SectionIndex);
Hemant Kulkarnic030f232016-03-15 17:25:31 +00004760 std::string FullSymbolName =
4761 this->dumper()->getFullSymbolName(Symbol, StrTable, IsDynamic);
4762 unsigned char SymbolType = Symbol->getType();
4763
4764 DictScope D(W, "Symbol");
4765 W.printNumber("Name", FullSymbolName, Symbol->st_name);
4766 W.printHex("Value", Symbol->st_value);
4767 W.printNumber("Size", Symbol->st_size);
4768 W.printEnum("Binding", Symbol->getBinding(), makeArrayRef(ElfSymbolBindings));
4769 if (Obj->getHeader()->e_machine == ELF::EM_AMDGPU &&
4770 SymbolType >= ELF::STT_LOOS && SymbolType < ELF::STT_HIOS)
4771 W.printEnum("Type", SymbolType, makeArrayRef(AMDGPUSymbolTypes));
4772 else
4773 W.printEnum("Type", SymbolType, makeArrayRef(ElfSymbolTypes));
Simon Atanasyanb7807a02016-03-24 16:10:37 +00004774 if (Symbol->st_other == 0)
4775 // Usually st_other flag is zero. Do not pollute the output
4776 // by flags enumeration in that case.
4777 W.printNumber("Other", 0);
4778 else {
4779 std::vector<EnumEntry<unsigned>> SymOtherFlags(std::begin(ElfSymOtherFlags),
4780 std::end(ElfSymOtherFlags));
4781 if (Obj->getHeader()->e_machine == EM_MIPS) {
4782 // Someones in their infinite wisdom decided to make STO_MIPS_MIPS16
4783 // flag overlapped with other ST_MIPS_xxx flags. So consider both
4784 // cases separately.
4785 if ((Symbol->st_other & STO_MIPS_MIPS16) == STO_MIPS_MIPS16)
4786 SymOtherFlags.insert(SymOtherFlags.end(),
4787 std::begin(ElfMips16SymOtherFlags),
4788 std::end(ElfMips16SymOtherFlags));
4789 else
4790 SymOtherFlags.insert(SymOtherFlags.end(),
4791 std::begin(ElfMipsSymOtherFlags),
4792 std::end(ElfMipsSymOtherFlags));
4793 }
4794 W.printFlags("Other", Symbol->st_other, makeArrayRef(SymOtherFlags), 0x3u);
4795 }
Hemant Kulkarnic030f232016-03-15 17:25:31 +00004796 W.printHex("Section", SectionName, SectionIndex);
4797}
4798
James Henderson21ed8682019-01-23 16:15:39 +00004799template <class ELFT>
4800void LLVMStyle<ELFT>::printSymbols(const ELFO *Obj, bool PrintSymbols,
4801 bool PrintDynamicSymbols) {
4802 if (PrintSymbols)
4803 printSymbols(Obj);
4804 if (PrintDynamicSymbols)
4805 printDynamicSymbols(Obj);
4806}
4807
Hemant Kulkarnic030f232016-03-15 17:25:31 +00004808template <class ELFT> void LLVMStyle<ELFT>::printSymbols(const ELFO *Obj) {
4809 ListScope Group(W, "Symbols");
Hemant Kulkarnia11fbe12016-03-21 17:18:23 +00004810 this->dumper()->printSymbolsHelper(false);
Hemant Kulkarnic030f232016-03-15 17:25:31 +00004811}
4812
4813template <class ELFT>
4814void LLVMStyle<ELFT>::printDynamicSymbols(const ELFO *Obj) {
4815 ListScope Group(W, "DynamicSymbols");
Hemant Kulkarnia11fbe12016-03-21 17:18:23 +00004816 this->dumper()->printSymbolsHelper(true);
Hemant Kulkarnic030f232016-03-15 17:25:31 +00004817}
4818
Simon Atanasyan8362cbe2019-05-24 12:22:53 +00004819template <class ELFT> void LLVMStyle<ELFT>::printDynamic(const ELFFile<ELFT> *Obj) {
4820 Elf_Dyn_Range Table = this->dumper()->dynamic_table();
4821 if (Table.empty())
4822 return;
4823
4824 raw_ostream &OS = W.getOStream();
4825 W.startLine() << "DynamicSection [ (" << Table.size() << " entries)\n";
4826
4827 bool Is64 = ELFT::Is64Bits;
4828 if (Is64)
4829 W.startLine() << " Tag Type Name/Value\n";
4830 else
4831 W.startLine() << " Tag Type Name/Value\n";
4832 for (auto Entry : Table) {
4833 uintX_t Tag = Entry.getTag();
4834 W.startLine() << " " << format_hex(Tag, Is64 ? 18 : 10, true) << " "
4835 << format("%-21s",
4836 getTypeString(Obj->getHeader()->e_machine, Tag));
4837 this->dumper()->printDynamicEntry(OS, Tag, Entry.getVal());
4838 OS << "\n";
4839 }
4840
4841 W.startLine() << "]\n";
4842}
4843
Hemant Kulkarnic030f232016-03-15 17:25:31 +00004844template <class ELFT>
4845void LLVMStyle<ELFT>::printDynamicRelocations(const ELFO *Obj) {
4846 const DynRegionInfo &DynRelRegion = this->dumper()->getDynRelRegion();
4847 const DynRegionInfo &DynRelaRegion = this->dumper()->getDynRelaRegion();
Jake Ehrlich0f440d82018-06-28 21:07:34 +00004848 const DynRegionInfo &DynRelrRegion = this->dumper()->getDynRelrRegion();
Hemant Kulkarnic030f232016-03-15 17:25:31 +00004849 const DynRegionInfo &DynPLTRelRegion = this->dumper()->getDynPLTRelRegion();
4850 if (DynRelRegion.Size && DynRelaRegion.Size)
4851 report_fatal_error("There are both REL and RELA dynamic relocations");
4852 W.startLine() << "Dynamic Relocations {\n";
4853 W.indent();
4854 if (DynRelaRegion.Size > 0)
4855 for (const Elf_Rela &Rela : this->dumper()->dyn_relas())
4856 printDynamicRelocation(Obj, Rela);
4857 else
4858 for (const Elf_Rel &Rel : this->dumper()->dyn_rels()) {
4859 Elf_Rela Rela;
4860 Rela.r_offset = Rel.r_offset;
4861 Rela.r_info = Rel.r_info;
4862 Rela.r_addend = 0;
4863 printDynamicRelocation(Obj, Rela);
4864 }
Jake Ehrlich0f440d82018-06-28 21:07:34 +00004865 if (DynRelrRegion.Size > 0) {
4866 Elf_Relr_Range Relrs = this->dumper()->dyn_relrs();
4867 std::vector<Elf_Rela> RelrRelas = unwrapOrError(Obj->decode_relrs(Relrs));
4868 for (const Elf_Rela &Rela : RelrRelas)
4869 printDynamicRelocation(Obj, Rela);
4870 }
Hemant Kulkarnic030f232016-03-15 17:25:31 +00004871 if (DynPLTRelRegion.EntSize == sizeof(Elf_Rela))
Rafael Espindolaaafcf752016-04-05 14:47:22 +00004872 for (const Elf_Rela &Rela : DynPLTRelRegion.getAsArrayRef<Elf_Rela>())
Hemant Kulkarnic030f232016-03-15 17:25:31 +00004873 printDynamicRelocation(Obj, Rela);
4874 else
Rafael Espindolaaafcf752016-04-05 14:47:22 +00004875 for (const Elf_Rel &Rel : DynPLTRelRegion.getAsArrayRef<Elf_Rel>()) {
Hemant Kulkarnic030f232016-03-15 17:25:31 +00004876 Elf_Rela Rela;
4877 Rela.r_offset = Rel.r_offset;
4878 Rela.r_info = Rel.r_info;
4879 Rela.r_addend = 0;
4880 printDynamicRelocation(Obj, Rela);
4881 }
4882 W.unindent();
4883 W.startLine() << "}\n";
4884}
4885
4886template <class ELFT>
4887void LLVMStyle<ELFT>::printDynamicRelocation(const ELFO *Obj, Elf_Rela Rel) {
4888 SmallString<32> RelocName;
4889 Obj->getRelocationTypeName(Rel.getType(Obj->isMips64EL()), RelocName);
James Hendersone50d9cb2019-01-17 15:34:12 +00004890 std::string SymbolName;
Hemant Kulkarnic030f232016-03-15 17:25:31 +00004891 uint32_t SymIndex = Rel.getSymbol(Obj->isMips64EL());
4892 const Elf_Sym *Sym = this->dumper()->dynamic_symbols().begin() + SymIndex;
James Hendersone50d9cb2019-01-17 15:34:12 +00004893 SymbolName = maybeDemangle(
4894 unwrapOrError(Sym->getName(this->dumper()->getDynamicStringTable())));
Hemant Kulkarnic030f232016-03-15 17:25:31 +00004895 if (opts::ExpandRelocs) {
4896 DictScope Group(W, "Relocation");
4897 W.printHex("Offset", Rel.r_offset);
4898 W.printNumber("Type", RelocName, (int)Rel.getType(Obj->isMips64EL()));
Eugene Zelenko416e0592017-06-09 21:41:54 +00004899 W.printString("Symbol", !SymbolName.empty() ? SymbolName : "-");
Hemant Kulkarnic030f232016-03-15 17:25:31 +00004900 W.printHex("Addend", Rel.r_addend);
4901 } else {
4902 raw_ostream &OS = W.startLine();
4903 OS << W.hex(Rel.r_offset) << " " << RelocName << " "
George Rimar9e88a262019-05-14 14:22:44 +00004904 << (!SymbolName.empty() ? SymbolName : "-") << " " << W.hex(Rel.r_addend)
4905 << "\n";
Hemant Kulkarnic030f232016-03-15 17:25:31 +00004906 }
4907}
Hemant Kulkarni966b3ac2016-03-25 16:04:48 +00004908
4909template <class ELFT>
Matt Davis50ca8ed2019-02-01 18:51:10 +00004910void LLVMStyle<ELFT>::printProgramHeaders(
4911 const ELFO *Obj, bool PrintProgramHeaders,
4912 cl::boolOrDefault PrintSectionMapping) {
4913 if (PrintProgramHeaders)
4914 printProgramHeaders(Obj);
4915 if (PrintSectionMapping == cl::BOU_TRUE)
4916 printSectionMapping(Obj);
4917}
4918
4919template <class ELFT>
Hemant Kulkarni966b3ac2016-03-25 16:04:48 +00004920void LLVMStyle<ELFT>::printProgramHeaders(const ELFO *Obj) {
4921 ListScope L(W, "ProgramHeaders");
4922
Rafael Espindola6a494972016-11-03 17:28:33 +00004923 for (const Elf_Phdr &Phdr : unwrapOrError(Obj->program_headers())) {
Hemant Kulkarni966b3ac2016-03-25 16:04:48 +00004924 DictScope P(W, "ProgramHeader");
4925 W.printHex("Type",
4926 getElfSegmentType(Obj->getHeader()->e_machine, Phdr.p_type),
4927 Phdr.p_type);
4928 W.printHex("Offset", Phdr.p_offset);
4929 W.printHex("VirtualAddress", Phdr.p_vaddr);
4930 W.printHex("PhysicalAddress", Phdr.p_paddr);
4931 W.printNumber("FileSize", Phdr.p_filesz);
4932 W.printNumber("MemSize", Phdr.p_memsz);
4933 W.printFlags("Flags", Phdr.p_flags, makeArrayRef(ElfSegmentFlags));
4934 W.printNumber("Alignment", Phdr.p_align);
4935 }
4936}
Saleem Abdulrasool6a405442016-08-30 18:52:02 +00004937
Hemant Kulkarni9b1b7f02016-04-11 17:15:30 +00004938template <class ELFT>
Xing GUOea16be12019-03-25 11:02:49 +00004939void LLVMStyle<ELFT>::printVersionSymbolSection(const ELFFile<ELFT> *Obj,
4940 const Elf_Shdr *Sec) {
4941 DictScope SS(W, "Version symbols");
4942 if (!Sec)
4943 return;
4944
4945 StringRef SecName = unwrapOrError(Obj->getSectionName(Sec));
4946 W.printNumber("Section Name", SecName, Sec->sh_name);
4947 W.printHex("Address", Sec->sh_addr);
4948 W.printHex("Offset", Sec->sh_offset);
4949 W.printNumber("Link", Sec->sh_link);
4950
Xing GUO0df95d22019-04-08 11:48:36 +00004951 const uint8_t *VersymBuf =
4952 reinterpret_cast<const uint8_t *>(Obj->base() + Sec->sh_offset);
Xing GUOea16be12019-03-25 11:02:49 +00004953 const ELFDumper<ELFT> *Dumper = this->dumper();
4954 StringRef StrTable = Dumper->getDynamicStringTable();
4955
4956 // Same number of entries in the dynamic symbol table (DT_SYMTAB).
4957 ListScope Syms(W, "Symbols");
4958 for (const Elf_Sym &Sym : Dumper->dynamic_symbols()) {
4959 DictScope S(W, "Symbol");
4960 const Elf_Versym *Versym = reinterpret_cast<const Elf_Versym *>(VersymBuf);
4961 std::string FullSymbolName =
4962 Dumper->getFullSymbolName(&Sym, StrTable, true /* IsDynamic */);
4963 W.printNumber("Version", Versym->vs_index & VERSYM_VERSION);
4964 W.printString("Name", FullSymbolName);
4965 VersymBuf += sizeof(Elf_Versym);
4966 }
4967}
4968
4969template <class ELFT>
4970void LLVMStyle<ELFT>::printVersionDefinitionSection(const ELFFile<ELFT> *Obj,
4971 const Elf_Shdr *Sec) {
4972 DictScope SD(W, "SHT_GNU_verdef");
4973 if (!Sec)
4974 return;
4975
4976 const uint8_t *SecStartAddress =
Xing GUO0df95d22019-04-08 11:48:36 +00004977 reinterpret_cast<const uint8_t *>(Obj->base() + Sec->sh_offset);
Xing GUOea16be12019-03-25 11:02:49 +00004978 const uint8_t *SecEndAddress = SecStartAddress + Sec->sh_size;
4979 const uint8_t *VerdefBuf = SecStartAddress;
4980 const Elf_Shdr *StrTab = unwrapOrError(Obj->getSection(Sec->sh_link));
4981
4982 unsigned VerDefsNum = Sec->sh_info;
4983 while (VerDefsNum--) {
4984 if (VerdefBuf + sizeof(Elf_Verdef) > SecEndAddress)
4985 // FIXME: report_fatal_error is not a good way to report error. We should
4986 // emit a parsing error here and below.
4987 report_fatal_error("invalid offset in the section");
4988
4989 const Elf_Verdef *Verdef = reinterpret_cast<const Elf_Verdef *>(VerdefBuf);
4990 DictScope Def(W, "Definition");
4991 W.printNumber("Version", Verdef->vd_version);
4992 W.printEnum("Flags", Verdef->vd_flags, makeArrayRef(SymVersionFlags));
4993 W.printNumber("Index", Verdef->vd_ndx);
4994 W.printNumber("Hash", Verdef->vd_hash);
Xing GUO0df95d22019-04-08 11:48:36 +00004995 W.printString("Name", StringRef(reinterpret_cast<const char *>(
4996 Obj->base() + StrTab->sh_offset +
4997 Verdef->getAux()->vda_name)));
Xing GUOea16be12019-03-25 11:02:49 +00004998 if (!Verdef->vd_cnt)
4999 report_fatal_error("at least one definition string must exist");
5000 if (Verdef->vd_cnt > 2)
5001 report_fatal_error("more than one predecessor is not expected");
5002
5003 if (Verdef->vd_cnt == 2) {
5004 const uint8_t *VerdauxBuf =
5005 VerdefBuf + Verdef->vd_aux + Verdef->getAux()->vda_next;
5006 const Elf_Verdaux *Verdaux =
5007 reinterpret_cast<const Elf_Verdaux *>(VerdauxBuf);
5008 W.printString("Predecessor",
Xing GUO0df95d22019-04-08 11:48:36 +00005009 StringRef(reinterpret_cast<const char *>(
5010 Obj->base() + StrTab->sh_offset + Verdaux->vda_name)));
Xing GUOea16be12019-03-25 11:02:49 +00005011 }
5012 VerdefBuf += Verdef->vd_next;
5013 }
5014}
5015
5016template <class ELFT>
5017void LLVMStyle<ELFT>::printVersionDependencySection(const ELFFile<ELFT> *Obj,
5018 const Elf_Shdr *Sec) {
5019 DictScope SD(W, "SHT_GNU_verneed");
5020 if (!Sec)
5021 return;
5022
Xing GUO0df95d22019-04-08 11:48:36 +00005023 const uint8_t *SecData =
5024 reinterpret_cast<const uint8_t *>(Obj->base() + Sec->sh_offset);
Xing GUOea16be12019-03-25 11:02:49 +00005025 const Elf_Shdr *StrTab = unwrapOrError(Obj->getSection(Sec->sh_link));
5026
5027 const uint8_t *VerneedBuf = SecData;
5028 unsigned VerneedNum = Sec->sh_info;
5029 for (unsigned I = 0; I < VerneedNum; ++I) {
5030 const Elf_Verneed *Verneed =
5031 reinterpret_cast<const Elf_Verneed *>(VerneedBuf);
5032 DictScope Entry(W, "Dependency");
5033 W.printNumber("Version", Verneed->vn_version);
5034 W.printNumber("Count", Verneed->vn_cnt);
5035 W.printString("FileName",
Xing GUO0df95d22019-04-08 11:48:36 +00005036 StringRef(reinterpret_cast<const char *>(
5037 Obj->base() + StrTab->sh_offset + Verneed->vn_file)));
Xing GUOea16be12019-03-25 11:02:49 +00005038
5039 const uint8_t *VernauxBuf = VerneedBuf + Verneed->vn_aux;
Xing GUO8ab74142019-04-10 12:47:21 +00005040 ListScope L(W, "Entries");
Xing GUOea16be12019-03-25 11:02:49 +00005041 for (unsigned J = 0; J < Verneed->vn_cnt; ++J) {
5042 const Elf_Vernaux *Vernaux =
5043 reinterpret_cast<const Elf_Vernaux *>(VernauxBuf);
5044 DictScope Entry(W, "Entry");
5045 W.printNumber("Hash", Vernaux->vna_hash);
5046 W.printEnum("Flags", Vernaux->vna_flags, makeArrayRef(SymVersionFlags));
5047 W.printNumber("Index", Vernaux->vna_other);
5048 W.printString("Name",
Xing GUO0df95d22019-04-08 11:48:36 +00005049 StringRef(reinterpret_cast<const char *>(
5050 Obj->base() + StrTab->sh_offset + Vernaux->vna_name)));
Xing GUOea16be12019-03-25 11:02:49 +00005051 VernauxBuf += Vernaux->vna_next;
5052 }
5053 VerneedBuf += Verneed->vn_next;
5054 }
5055}
5056
5057template <class ELFT>
Hemant Kulkarni9b1b7f02016-04-11 17:15:30 +00005058void LLVMStyle<ELFT>::printHashHistogram(const ELFFile<ELFT> *Obj) {
5059 W.startLine() << "Hash Histogram not implemented!\n";
5060}
Saleem Abdulrasool6a405442016-08-30 18:52:02 +00005061
5062template <class ELFT>
Michael J. Spencerae6eeae2018-06-02 16:33:01 +00005063void LLVMStyle<ELFT>::printCGProfile(const ELFFile<ELFT> *Obj) {
5064 ListScope L(W, "CGProfile");
5065 if (!this->dumper()->getDotCGProfileSec())
5066 return;
5067 auto CGProfile =
5068 unwrapOrError(Obj->template getSectionContentsAsArray<Elf_CGProfile>(
5069 this->dumper()->getDotCGProfileSec()));
5070 for (const Elf_CGProfile &CGPE : CGProfile) {
5071 DictScope D(W, "CGProfileEntry");
5072 W.printNumber("From", this->dumper()->getStaticSymbolName(CGPE.cgp_from),
5073 CGPE.cgp_from);
5074 W.printNumber("To", this->dumper()->getStaticSymbolName(CGPE.cgp_to),
5075 CGPE.cgp_to);
5076 W.printNumber("Weight", CGPE.cgp_weight);
5077 }
5078}
5079
5080template <class ELFT>
Peter Collingbourne3e227332018-07-17 22:17:18 +00005081void LLVMStyle<ELFT>::printAddrsig(const ELFFile<ELFT> *Obj) {
5082 ListScope L(W, "Addrsig");
5083 if (!this->dumper()->getDotAddrsigSec())
5084 return;
5085 ArrayRef<uint8_t> Contents = unwrapOrError(
5086 Obj->getSectionContents(this->dumper()->getDotAddrsigSec()));
5087 const uint8_t *Cur = Contents.begin();
5088 const uint8_t *End = Contents.end();
5089 while (Cur != End) {
5090 unsigned Size;
5091 const char *Err;
Peter Collingbourne7d179082018-08-21 17:18:18 +00005092 uint64_t SymIndex = decodeULEB128(Cur, &Size, End, &Err);
Peter Collingbourne3e227332018-07-17 22:17:18 +00005093 if (Err)
5094 reportError(Err);
5095 W.printNumber("Sym", this->dumper()->getStaticSymbolName(SymIndex),
5096 SymIndex);
5097 Cur += Size;
5098 }
5099}
5100
Jordan Rupprecht4f36c7a2018-11-07 23:53:50 +00005101template <typename ELFT>
George Rimar9e88a262019-05-14 14:22:44 +00005102static void printGNUNoteLLVMStyle(uint32_t NoteType, ArrayRef<uint8_t> Desc,
Jordan Rupprecht4f36c7a2018-11-07 23:53:50 +00005103 ScopedPrinter &W) {
5104 switch (NoteType) {
5105 default:
5106 return;
5107 case ELF::NT_GNU_ABI_TAG: {
Jake Ehrlichee7ec6c2018-11-13 01:10:35 +00005108 const GNUAbiTag &AbiTag = getGNUAbiTag<ELFT>(Desc);
Jordan Rupprecht4f36c7a2018-11-07 23:53:50 +00005109 if (!AbiTag.IsValid) {
5110 W.printString("ABI", "<corrupt GNU_ABI_TAG>");
5111 } else {
5112 W.printString("OS", AbiTag.OSName);
5113 W.printString("ABI", AbiTag.ABI);
5114 }
5115 break;
5116 }
5117 case ELF::NT_GNU_BUILD_ID: {
Jake Ehrlichee7ec6c2018-11-13 01:10:35 +00005118 W.printString("Build ID", getGNUBuildId(Desc));
Jordan Rupprecht4f36c7a2018-11-07 23:53:50 +00005119 break;
5120 }
5121 case ELF::NT_GNU_GOLD_VERSION:
Jake Ehrlichee7ec6c2018-11-13 01:10:35 +00005122 W.printString("Version", getGNUGoldVersion(Desc));
Jordan Rupprecht4f36c7a2018-11-07 23:53:50 +00005123 break;
5124 case ELF::NT_GNU_PROPERTY_TYPE_0:
5125 ListScope D(W, "Property");
Jake Ehrlichee7ec6c2018-11-13 01:10:35 +00005126 for (const auto &Property : getGNUPropertyList<ELFT>(Desc))
Jordan Rupprecht4f36c7a2018-11-07 23:53:50 +00005127 W.printString(Property);
5128 break;
5129 }
5130}
5131
Peter Collingbourne3e227332018-07-17 22:17:18 +00005132template <class ELFT>
Saleem Abdulrasool6a405442016-08-30 18:52:02 +00005133void LLVMStyle<ELFT>::printNotes(const ELFFile<ELFT> *Obj) {
Jordan Rupprecht4f36c7a2018-11-07 23:53:50 +00005134 ListScope L(W, "Notes");
Jordan Rupprecht4f36c7a2018-11-07 23:53:50 +00005135
5136 auto PrintHeader = [&](const typename ELFT::Off Offset,
5137 const typename ELFT::Addr Size) {
5138 W.printHex("Offset", Offset);
5139 W.printHex("Size", Size);
5140 };
5141
5142 auto ProcessNote = [&](const Elf_Note &Note) {
5143 DictScope D2(W, "Note");
5144 StringRef Name = Note.getName();
Jake Ehrlichee7ec6c2018-11-13 01:10:35 +00005145 ArrayRef<uint8_t> Descriptor = Note.getDesc();
Jordan Rupprecht4f36c7a2018-11-07 23:53:50 +00005146 Elf_Word Type = Note.getType();
5147
5148 W.printString("Owner", Name);
5149 W.printHex("Data size", Descriptor.size());
5150 if (Name == "GNU") {
5151 W.printString("Type", getGNUNoteTypeName(Type));
5152 printGNUNoteLLVMStyle<ELFT>(Type, Descriptor, W);
5153 } else if (Name == "FreeBSD") {
5154 W.printString("Type", getFreeBSDNoteTypeName(Type));
5155 } else if (Name == "AMD") {
Scott Linderf5b36e52018-12-12 19:39:27 +00005156 W.printString("Type", getAMDNoteTypeName(Type));
5157 const AMDNote N = getAMDNote<ELFT>(Type, Descriptor);
5158 if (!N.Type.empty())
5159 W.printString(N.Type, N.Value);
5160 } else if (Name == "AMDGPU") {
Jordan Rupprecht4f36c7a2018-11-07 23:53:50 +00005161 W.printString("Type", getAMDGPUNoteTypeName(Type));
5162 const AMDGPUNote N = getAMDGPUNote<ELFT>(Type, Descriptor);
Scott Linderf5b36e52018-12-12 19:39:27 +00005163 if (!N.Type.empty())
5164 W.printString(N.Type, N.Value);
Jordan Rupprecht4f36c7a2018-11-07 23:53:50 +00005165 } else {
Jordan Rupprechtd884fbd2019-08-05 15:43:20 +00005166 StringRef NoteType = Obj->getHeader()->e_type == ELF::ET_CORE
5167 ? getCoreNoteTypeName(Type)
5168 : getGenericNoteTypeName(Type);
Jordan Rupprecht871baa22019-03-29 16:48:19 +00005169 if (!NoteType.empty())
5170 W.printString("Type", NoteType);
5171 else
5172 W.printString("Type",
5173 "Unknown (" + to_string(format_hex(Type, 10)) + ")");
Jordan Rupprecht4f36c7a2018-11-07 23:53:50 +00005174 }
5175 };
5176
George Rimar1206f5a2019-01-30 15:39:05 +00005177 if (Obj->getHeader()->e_type == ELF::ET_CORE) {
Jordan Rupprecht4f36c7a2018-11-07 23:53:50 +00005178 for (const auto &P : unwrapOrError(Obj->program_headers())) {
5179 if (P.p_type != PT_NOTE)
5180 continue;
5181 DictScope D(W, "NoteSection");
5182 PrintHeader(P.p_offset, P.p_filesz);
5183 Error Err = Error::success();
5184 for (const auto &Note : Obj->notes(P, Err))
5185 ProcessNote(Note);
5186 if (Err)
5187 error(std::move(Err));
5188 }
5189 } else {
5190 for (const auto &S : unwrapOrError(Obj->sections())) {
5191 if (S.sh_type != SHT_NOTE)
5192 continue;
5193 DictScope D(W, "NoteSection");
5194 PrintHeader(S.sh_offset, S.sh_size);
5195 Error Err = Error::success();
5196 for (const auto &Note : Obj->notes(S, Err))
5197 ProcessNote(Note);
5198 if (Err)
5199 error(std::move(Err));
5200 }
5201 }
Saleem Abdulrasool6a405442016-08-30 18:52:02 +00005202}
Simon Atanasyan62d32592017-12-21 10:26:02 +00005203
5204template <class ELFT>
Saleem Abdulrasoolb36fbbc2018-01-30 16:29:29 +00005205void LLVMStyle<ELFT>::printELFLinkerOptions(const ELFFile<ELFT> *Obj) {
5206 ListScope L(W, "LinkerOptions");
5207
5208 for (const Elf_Shdr &Shdr : unwrapOrError(Obj->sections())) {
5209 if (Shdr.sh_type != ELF::SHT_LLVM_LINKER_OPTIONS)
5210 continue;
5211
5212 ArrayRef<uint8_t> Contents = unwrapOrError(Obj->getSectionContents(&Shdr));
George Rimarec895f12019-05-16 06:22:51 +00005213 for (const uint8_t *P = Contents.begin(), *E = Contents.end(); P < E; ) {
Saleem Abdulrasoolb36fbbc2018-01-30 16:29:29 +00005214 StringRef Key = StringRef(reinterpret_cast<const char *>(P));
5215 StringRef Value =
5216 StringRef(reinterpret_cast<const char *>(P) + Key.size() + 1);
5217
5218 W.printString(Key, Value);
5219
5220 P = P + Key.size() + Value.size() + 2;
5221 }
5222 }
5223}
5224
5225template <class ELFT>
Simon Atanasyan62d32592017-12-21 10:26:02 +00005226void LLVMStyle<ELFT>::printMipsGOT(const MipsGOTParser<ELFT> &Parser) {
5227 auto PrintEntry = [&](const Elf_Addr *E) {
5228 W.printHex("Address", Parser.getGotAddress(E));
5229 W.printNumber("Access", Parser.getGotOffset(E));
5230 W.printHex("Initial", *E);
5231 };
5232
5233 DictScope GS(W, Parser.IsStatic ? "Static GOT" : "Primary GOT");
5234
5235 W.printHex("Canonical gp value", Parser.getGp());
5236 {
5237 ListScope RS(W, "Reserved entries");
5238 {
5239 DictScope D(W, "Entry");
5240 PrintEntry(Parser.getGotLazyResolver());
5241 W.printString("Purpose", StringRef("Lazy resolver"));
5242 }
5243
5244 if (Parser.getGotModulePointer()) {
5245 DictScope D(W, "Entry");
5246 PrintEntry(Parser.getGotModulePointer());
5247 W.printString("Purpose", StringRef("Module pointer (GNU extension)"));
5248 }
5249 }
5250 {
5251 ListScope LS(W, "Local entries");
5252 for (auto &E : Parser.getLocalEntries()) {
5253 DictScope D(W, "Entry");
5254 PrintEntry(&E);
5255 }
5256 }
5257
5258 if (Parser.IsStatic)
5259 return;
5260
5261 {
5262 ListScope GS(W, "Global entries");
5263 for (auto &E : Parser.getGlobalEntries()) {
5264 DictScope D(W, "Entry");
5265
5266 PrintEntry(&E);
5267
5268 const Elf_Sym *Sym = Parser.getGotSym(&E);
5269 W.printHex("Value", Sym->st_value);
5270 W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes));
5271
5272 unsigned SectionIndex = 0;
5273 StringRef SectionName;
5274 this->dumper()->getSectionNameIndex(
5275 Sym, this->dumper()->dynamic_symbols().begin(), SectionName,
5276 SectionIndex);
5277 W.printHex("Section", SectionName, SectionIndex);
5278
5279 std::string SymName = this->dumper()->getFullSymbolName(
5280 Sym, this->dumper()->getDynamicStringTable(), true);
5281 W.printNumber("Name", SymName, Sym->st_name);
5282 }
5283 }
5284
5285 W.printNumber("Number of TLS and multi-GOT entries",
Simon Atanasyan4e945b62017-12-21 10:46:20 +00005286 uint64_t(Parser.getOtherEntries().size()));
Simon Atanasyan62d32592017-12-21 10:26:02 +00005287}
5288
5289template <class ELFT>
5290void LLVMStyle<ELFT>::printMipsPLT(const MipsGOTParser<ELFT> &Parser) {
5291 auto PrintEntry = [&](const Elf_Addr *E) {
5292 W.printHex("Address", Parser.getPltAddress(E));
5293 W.printHex("Initial", *E);
5294 };
5295
5296 DictScope GS(W, "PLT GOT");
5297
5298 {
5299 ListScope RS(W, "Reserved entries");
5300 {
5301 DictScope D(W, "Entry");
5302 PrintEntry(Parser.getPltLazyResolver());
5303 W.printString("Purpose", StringRef("PLT lazy resolver"));
5304 }
5305
5306 if (auto E = Parser.getPltModulePointer()) {
5307 DictScope D(W, "Entry");
5308 PrintEntry(E);
5309 W.printString("Purpose", StringRef("Module pointer"));
5310 }
5311 }
5312 {
5313 ListScope LS(W, "Entries");
5314 for (auto &E : Parser.getPltEntries()) {
5315 DictScope D(W, "Entry");
5316 PrintEntry(&E);
5317
5318 const Elf_Sym *Sym = Parser.getPltSym(&E);
5319 W.printHex("Value", Sym->st_value);
5320 W.printEnum("Type", Sym->getType(), makeArrayRef(ElfSymbolTypes));
5321
5322 unsigned SectionIndex = 0;
5323 StringRef SectionName;
5324 this->dumper()->getSectionNameIndex(
5325 Sym, this->dumper()->dynamic_symbols().begin(), SectionName,
5326 SectionIndex);
5327 W.printHex("Section", SectionName, SectionIndex);
5328
5329 std::string SymName =
5330 this->dumper()->getFullSymbolName(Sym, Parser.getPltStrTable(), true);
5331 W.printNumber("Name", SymName, Sym->st_name);
5332 }
5333 }
5334}