1 //===- ELF.h - ELF object file implementation -------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file declares the ELFObjectFile template class.
12 //===----------------------------------------------------------------------===//
14 #ifndef LLVM_OBJECT_ELF_H
15 #define LLVM_OBJECT_ELF_H
17 #include "llvm/ADT/DenseMap.h"
18 #include "llvm/ADT/PointerIntPair.h"
19 #include "llvm/ADT/SmallVector.h"
20 #include "llvm/ADT/StringSwitch.h"
21 #include "llvm/ADT/Triple.h"
22 #include "llvm/Object/ObjectFile.h"
23 #include "llvm/Support/Casting.h"
24 #include "llvm/Support/ELF.h"
25 #include "llvm/Support/Endian.h"
26 #include "llvm/Support/ErrorHandling.h"
27 #include "llvm/Support/MemoryBuffer.h"
28 #include "llvm/Support/raw_ostream.h"
36 // Subclasses of ELFObjectFile may need this for template instantiation
37 inline std::pair<unsigned char, unsigned char>
38 getElfArchType(MemoryBuffer *Object) {
39 if (Object->getBufferSize() < ELF::EI_NIDENT)
40 return std::make_pair((uint8_t)ELF::ELFCLASSNONE,(uint8_t)ELF::ELFDATANONE);
41 return std::make_pair( (uint8_t)Object->getBufferStart()[ELF::EI_CLASS]
42 , (uint8_t)Object->getBufferStart()[ELF::EI_DATA]);
45 // Templates to choose Elf_Addr and Elf_Off depending on is64Bits.
46 template<support::endianness target_endianness>
47 struct ELFDataTypeTypedefHelperCommon {
48 typedef support::detail::packed_endian_specific_integral
49 <uint16_t, target_endianness, support::aligned> Elf_Half;
50 typedef support::detail::packed_endian_specific_integral
51 <uint32_t, target_endianness, support::aligned> Elf_Word;
52 typedef support::detail::packed_endian_specific_integral
53 <int32_t, target_endianness, support::aligned> Elf_Sword;
54 typedef support::detail::packed_endian_specific_integral
55 <uint64_t, target_endianness, support::aligned> Elf_Xword;
56 typedef support::detail::packed_endian_specific_integral
57 <int64_t, target_endianness, support::aligned> Elf_Sxword;
60 template<support::endianness target_endianness, bool is64Bits>
61 struct ELFDataTypeTypedefHelper;
64 template<support::endianness target_endianness>
65 struct ELFDataTypeTypedefHelper<target_endianness, false>
66 : ELFDataTypeTypedefHelperCommon<target_endianness> {
67 typedef uint32_t value_type;
68 typedef support::detail::packed_endian_specific_integral
69 <value_type, target_endianness, support::aligned> Elf_Addr;
70 typedef support::detail::packed_endian_specific_integral
71 <value_type, target_endianness, support::aligned> Elf_Off;
75 template<support::endianness target_endianness>
76 struct ELFDataTypeTypedefHelper<target_endianness, true>
77 : ELFDataTypeTypedefHelperCommon<target_endianness>{
78 typedef uint64_t value_type;
79 typedef support::detail::packed_endian_specific_integral
80 <value_type, target_endianness, support::aligned> Elf_Addr;
81 typedef support::detail::packed_endian_specific_integral
82 <value_type, target_endianness, support::aligned> Elf_Off;
85 // I really don't like doing this, but the alternative is copypasta.
86 #define LLVM_ELF_IMPORT_TYPES(target_endianness, is64Bits) \
88 ELFDataTypeTypedefHelper<target_endianness, is64Bits>::Elf_Addr Elf_Addr; \
90 ELFDataTypeTypedefHelper<target_endianness, is64Bits>::Elf_Off Elf_Off; \
92 ELFDataTypeTypedefHelper<target_endianness, is64Bits>::Elf_Half Elf_Half; \
94 ELFDataTypeTypedefHelper<target_endianness, is64Bits>::Elf_Word Elf_Word; \
96 ELFDataTypeTypedefHelper<target_endianness, is64Bits>::Elf_Sword Elf_Sword; \
98 ELFDataTypeTypedefHelper<target_endianness, is64Bits>::Elf_Xword Elf_Xword; \
100 ELFDataTypeTypedefHelper<target_endianness, is64Bits>::Elf_Sxword Elf_Sxword;
103 template<support::endianness target_endianness, bool is64Bits>
104 struct Elf_Shdr_Base;
106 template<support::endianness target_endianness>
107 struct Elf_Shdr_Base<target_endianness, false> {
108 LLVM_ELF_IMPORT_TYPES(target_endianness, false)
109 Elf_Word sh_name; // Section name (index into string table)
110 Elf_Word sh_type; // Section type (SHT_*)
111 Elf_Word sh_flags; // Section flags (SHF_*)
112 Elf_Addr sh_addr; // Address where section is to be loaded
113 Elf_Off sh_offset; // File offset of section data, in bytes
114 Elf_Word sh_size; // Size of section, in bytes
115 Elf_Word sh_link; // Section type-specific header table index link
116 Elf_Word sh_info; // Section type-specific extra information
117 Elf_Word sh_addralign;// Section address alignment
118 Elf_Word sh_entsize; // Size of records contained within the section
121 template<support::endianness target_endianness>
122 struct Elf_Shdr_Base<target_endianness, true> {
123 LLVM_ELF_IMPORT_TYPES(target_endianness, true)
124 Elf_Word sh_name; // Section name (index into string table)
125 Elf_Word sh_type; // Section type (SHT_*)
126 Elf_Xword sh_flags; // Section flags (SHF_*)
127 Elf_Addr sh_addr; // Address where section is to be loaded
128 Elf_Off sh_offset; // File offset of section data, in bytes
129 Elf_Xword sh_size; // Size of section, in bytes
130 Elf_Word sh_link; // Section type-specific header table index link
131 Elf_Word sh_info; // Section type-specific extra information
132 Elf_Xword sh_addralign;// Section address alignment
133 Elf_Xword sh_entsize; // Size of records contained within the section
136 template<support::endianness target_endianness, bool is64Bits>
137 struct Elf_Shdr_Impl : Elf_Shdr_Base<target_endianness, is64Bits> {
138 using Elf_Shdr_Base<target_endianness, is64Bits>::sh_entsize;
139 using Elf_Shdr_Base<target_endianness, is64Bits>::sh_size;
141 /// @brief Get the number of entities this section contains if it has any.
142 unsigned getEntityCount() const {
145 return sh_size / sh_entsize;
149 template<support::endianness target_endianness, bool is64Bits>
152 template<support::endianness target_endianness>
153 struct Elf_Sym_Base<target_endianness, false> {
154 LLVM_ELF_IMPORT_TYPES(target_endianness, false)
155 Elf_Word st_name; // Symbol name (index into string table)
156 Elf_Addr st_value; // Value or address associated with the symbol
157 Elf_Word st_size; // Size of the symbol
158 unsigned char st_info; // Symbol's type and binding attributes
159 unsigned char st_other; // Must be zero; reserved
160 Elf_Half st_shndx; // Which section (header table index) it's defined in
163 template<support::endianness target_endianness>
164 struct Elf_Sym_Base<target_endianness, true> {
165 LLVM_ELF_IMPORT_TYPES(target_endianness, true)
166 Elf_Word st_name; // Symbol name (index into string table)
167 unsigned char st_info; // Symbol's type and binding attributes
168 unsigned char st_other; // Must be zero; reserved
169 Elf_Half st_shndx; // Which section (header table index) it's defined in
170 Elf_Addr st_value; // Value or address associated with the symbol
171 Elf_Xword st_size; // Size of the symbol
174 template<support::endianness target_endianness, bool is64Bits>
175 struct Elf_Sym_Impl : Elf_Sym_Base<target_endianness, is64Bits> {
176 using Elf_Sym_Base<target_endianness, is64Bits>::st_info;
178 // These accessors and mutators correspond to the ELF32_ST_BIND,
179 // ELF32_ST_TYPE, and ELF32_ST_INFO macros defined in the ELF specification:
180 unsigned char getBinding() const { return st_info >> 4; }
181 unsigned char getType() const { return st_info & 0x0f; }
182 void setBinding(unsigned char b) { setBindingAndType(b, getType()); }
183 void setType(unsigned char t) { setBindingAndType(getBinding(), t); }
184 void setBindingAndType(unsigned char b, unsigned char t) {
185 st_info = (b << 4) + (t & 0x0f);
189 /// Elf_Versym: This is the structure of entries in the SHT_GNU_versym section
190 /// (.gnu.version). This structure is identical for ELF32 and ELF64.
191 template<support::endianness target_endianness, bool is64Bits>
192 struct Elf_Versym_Impl {
193 LLVM_ELF_IMPORT_TYPES(target_endianness, is64Bits)
194 Elf_Half vs_index; // Version index with flags (e.g. VERSYM_HIDDEN)
197 template<support::endianness target_endianness, bool is64Bits>
198 struct Elf_Verdaux_Impl;
200 /// Elf_Verdef: This is the structure of entries in the SHT_GNU_verdef section
201 /// (.gnu.version_d). This structure is identical for ELF32 and ELF64.
202 template<support::endianness target_endianness, bool is64Bits>
203 struct Elf_Verdef_Impl {
204 LLVM_ELF_IMPORT_TYPES(target_endianness, is64Bits)
205 typedef Elf_Verdaux_Impl<target_endianness, is64Bits> Elf_Verdaux;
206 Elf_Half vd_version; // Version of this structure (e.g. VER_DEF_CURRENT)
207 Elf_Half vd_flags; // Bitwise flags (VER_DEF_*)
208 Elf_Half vd_ndx; // Version index, used in .gnu.version entries
209 Elf_Half vd_cnt; // Number of Verdaux entries
210 Elf_Word vd_hash; // Hash of name
211 Elf_Word vd_aux; // Offset to the first Verdaux entry (in bytes)
212 Elf_Word vd_next; // Offset to the next Verdef entry (in bytes)
214 /// Get the first Verdaux entry for this Verdef.
215 const Elf_Verdaux *getAux() const {
216 return reinterpret_cast<const Elf_Verdaux*>((const char*)this + vd_aux);
220 /// Elf_Verdaux: This is the structure of auxiliary data in the SHT_GNU_verdef
221 /// section (.gnu.version_d). This structure is identical for ELF32 and ELF64.
222 template<support::endianness target_endianness, bool is64Bits>
223 struct Elf_Verdaux_Impl {
224 LLVM_ELF_IMPORT_TYPES(target_endianness, is64Bits)
225 Elf_Word vda_name; // Version name (offset in string table)
226 Elf_Word vda_next; // Offset to next Verdaux entry (in bytes)
229 /// Elf_Verneed: This is the structure of entries in the SHT_GNU_verneed
230 /// section (.gnu.version_r). This structure is identical for ELF32 and ELF64.
231 template<support::endianness target_endianness, bool is64Bits>
232 struct Elf_Verneed_Impl {
233 LLVM_ELF_IMPORT_TYPES(target_endianness, is64Bits)
234 Elf_Half vn_version; // Version of this structure (e.g. VER_NEED_CURRENT)
235 Elf_Half vn_cnt; // Number of associated Vernaux entries
236 Elf_Word vn_file; // Library name (string table offset)
237 Elf_Word vn_aux; // Offset to first Vernaux entry (in bytes)
238 Elf_Word vn_next; // Offset to next Verneed entry (in bytes)
241 /// Elf_Vernaux: This is the structure of auxiliary data in SHT_GNU_verneed
242 /// section (.gnu.version_r). This structure is identical for ELF32 and ELF64.
243 template<support::endianness target_endianness, bool is64Bits>
244 struct Elf_Vernaux_Impl {
245 LLVM_ELF_IMPORT_TYPES(target_endianness, is64Bits)
246 Elf_Word vna_hash; // Hash of dependency name
247 Elf_Half vna_flags; // Bitwise Flags (VER_FLAG_*)
248 Elf_Half vna_other; // Version index, used in .gnu.version entries
249 Elf_Word vna_name; // Dependency name
250 Elf_Word vna_next; // Offset to next Vernaux entry (in bytes)
253 /// Elf_Dyn_Base: This structure matches the form of entries in the dynamic
254 /// table section (.dynamic) look like.
255 template<support::endianness target_endianness, bool is64Bits>
258 template<support::endianness target_endianness>
259 struct Elf_Dyn_Base<target_endianness, false> {
260 LLVM_ELF_IMPORT_TYPES(target_endianness, false)
268 template<support::endianness target_endianness>
269 struct Elf_Dyn_Base<target_endianness, true> {
270 LLVM_ELF_IMPORT_TYPES(target_endianness, true)
278 /// Elf_Dyn_Impl: This inherits from Elf_Dyn_Base, adding getters and setters.
279 template<support::endianness target_endianness, bool is64Bits>
280 struct Elf_Dyn_Impl : Elf_Dyn_Base<target_endianness, is64Bits> {
281 using Elf_Dyn_Base<target_endianness, is64Bits>::d_tag;
282 using Elf_Dyn_Base<target_endianness, is64Bits>::d_un;
283 int64_t getTag() const { return d_tag; }
284 uint64_t getVal() const { return d_un.d_val; }
285 uint64_t getPtr() const { return d_un.ptr; }
288 template<support::endianness target_endianness, bool is64Bits>
291 // DynRefImpl: Reference to an entry in the dynamic table
292 // This is an ELF-specific interface.
293 template<support::endianness target_endianness, bool is64Bits>
295 typedef Elf_Dyn_Impl<target_endianness, is64Bits> Elf_Dyn;
296 typedef ELFObjectFile<target_endianness, is64Bits> OwningType;
298 DataRefImpl DynPimpl;
299 const OwningType *OwningObject;
302 DynRefImpl() : OwningObject(NULL) { }
304 DynRefImpl(DataRefImpl DynP, const OwningType *Owner);
306 bool operator==(const DynRefImpl &Other) const;
307 bool operator <(const DynRefImpl &Other) const;
309 error_code getNext(DynRefImpl &Result) const;
310 int64_t getTag() const;
311 uint64_t getVal() const;
312 uint64_t getPtr() const;
314 DataRefImpl getRawDataRefImpl() const;
317 // Elf_Rel: Elf Relocation
318 template<support::endianness target_endianness, bool is64Bits, bool isRela>
321 template<support::endianness target_endianness>
322 struct Elf_Rel_Base<target_endianness, false, false> {
323 LLVM_ELF_IMPORT_TYPES(target_endianness, false)
324 Elf_Addr r_offset; // Location (file byte offset, or program virtual addr)
325 Elf_Word r_info; // Symbol table index and type of relocation to apply
328 template<support::endianness target_endianness>
329 struct Elf_Rel_Base<target_endianness, true, false> {
330 LLVM_ELF_IMPORT_TYPES(target_endianness, true)
331 Elf_Addr r_offset; // Location (file byte offset, or program virtual addr)
332 Elf_Xword r_info; // Symbol table index and type of relocation to apply
335 template<support::endianness target_endianness>
336 struct Elf_Rel_Base<target_endianness, false, true> {
337 LLVM_ELF_IMPORT_TYPES(target_endianness, false)
338 Elf_Addr r_offset; // Location (file byte offset, or program virtual addr)
339 Elf_Word r_info; // Symbol table index and type of relocation to apply
340 Elf_Sword r_addend; // Compute value for relocatable field by adding this
343 template<support::endianness target_endianness>
344 struct Elf_Rel_Base<target_endianness, true, true> {
345 LLVM_ELF_IMPORT_TYPES(target_endianness, true)
346 Elf_Addr r_offset; // Location (file byte offset, or program virtual addr)
347 Elf_Xword r_info; // Symbol table index and type of relocation to apply
348 Elf_Sxword r_addend; // Compute value for relocatable field by adding this.
351 template<support::endianness target_endianness, bool is64Bits, bool isRela>
354 template<support::endianness target_endianness, bool isRela>
355 struct Elf_Rel_Impl<target_endianness, true, isRela>
356 : Elf_Rel_Base<target_endianness, true, isRela> {
357 using Elf_Rel_Base<target_endianness, true, isRela>::r_info;
358 LLVM_ELF_IMPORT_TYPES(target_endianness, true)
360 // These accessors and mutators correspond to the ELF64_R_SYM, ELF64_R_TYPE,
361 // and ELF64_R_INFO macros defined in the ELF specification:
362 uint64_t getSymbol() const { return (r_info >> 32); }
363 unsigned char getType() const {
364 return (unsigned char) (r_info & 0xffffffffL);
366 void setSymbol(uint64_t s) { setSymbolAndType(s, getType()); }
367 void setType(unsigned char t) { setSymbolAndType(getSymbol(), t); }
368 void setSymbolAndType(uint64_t s, unsigned char t) {
369 r_info = (s << 32) + (t&0xffffffffL);
373 template<support::endianness target_endianness, bool isRela>
374 struct Elf_Rel_Impl<target_endianness, false, isRela>
375 : Elf_Rel_Base<target_endianness, false, isRela> {
376 using Elf_Rel_Base<target_endianness, false, isRela>::r_info;
377 LLVM_ELF_IMPORT_TYPES(target_endianness, false)
379 // These accessors and mutators correspond to the ELF32_R_SYM, ELF32_R_TYPE,
380 // and ELF32_R_INFO macros defined in the ELF specification:
381 uint32_t getSymbol() const { return (r_info >> 8); }
382 unsigned char getType() const { return (unsigned char) (r_info & 0x0ff); }
383 void setSymbol(uint32_t s) { setSymbolAndType(s, getType()); }
384 void setType(unsigned char t) { setSymbolAndType(getSymbol(), t); }
385 void setSymbolAndType(uint32_t s, unsigned char t) {
386 r_info = (s << 8) + t;
390 template<support::endianness target_endianness, bool is64Bits>
391 struct Elf_Ehdr_Impl {
392 LLVM_ELF_IMPORT_TYPES(target_endianness, is64Bits)
393 unsigned char e_ident[ELF::EI_NIDENT]; // ELF Identification bytes
394 Elf_Half e_type; // Type of file (see ET_*)
395 Elf_Half e_machine; // Required architecture for this file (see EM_*)
396 Elf_Word e_version; // Must be equal to 1
397 Elf_Addr e_entry; // Address to jump to in order to start program
398 Elf_Off e_phoff; // Program header table's file offset, in bytes
399 Elf_Off e_shoff; // Section header table's file offset, in bytes
400 Elf_Word e_flags; // Processor-specific flags
401 Elf_Half e_ehsize; // Size of ELF header, in bytes
402 Elf_Half e_phentsize;// Size of an entry in the program header table
403 Elf_Half e_phnum; // Number of entries in the program header table
404 Elf_Half e_shentsize;// Size of an entry in the section header table
405 Elf_Half e_shnum; // Number of entries in the section header table
406 Elf_Half e_shstrndx; // Section header table index of section name
408 bool checkMagic() const {
409 return (memcmp(e_ident, ELF::ElfMagic, strlen(ELF::ElfMagic))) == 0;
411 unsigned char getFileClass() const { return e_ident[ELF::EI_CLASS]; }
412 unsigned char getDataEncoding() const { return e_ident[ELF::EI_DATA]; }
415 template<support::endianness target_endianness, bool is64Bits>
418 template<support::endianness target_endianness>
419 struct Elf_Phdr<target_endianness, false> {
420 LLVM_ELF_IMPORT_TYPES(target_endianness, false)
421 Elf_Word p_type; // Type of segment
422 Elf_Off p_offset; // FileOffset where segment is located, in bytes
423 Elf_Addr p_vaddr; // Virtual Address of beginning of segment
424 Elf_Addr p_paddr; // Physical address of beginning of segment (OS-specific)
425 Elf_Word p_filesz; // Num. of bytes in file image of segment (may be zero)
426 Elf_Word p_memsz; // Num. of bytes in mem image of segment (may be zero)
427 Elf_Word p_flags; // Segment flags
428 Elf_Word p_align; // Segment alignment constraint
431 template<support::endianness target_endianness>
432 struct Elf_Phdr<target_endianness, true> {
433 LLVM_ELF_IMPORT_TYPES(target_endianness, true)
434 Elf_Word p_type; // Type of segment
435 Elf_Word p_flags; // Segment flags
436 Elf_Off p_offset; // FileOffset where segment is located, in bytes
437 Elf_Addr p_vaddr; // Virtual Address of beginning of segment
438 Elf_Addr p_paddr; // Physical address of beginning of segment (OS-specific)
439 Elf_Word p_filesz; // Num. of bytes in file image of segment (may be zero)
440 Elf_Word p_memsz; // Num. of bytes in mem image of segment (may be zero)
441 Elf_Word p_align; // Segment alignment constraint
444 template<support::endianness target_endianness, bool is64Bits>
445 class ELFObjectFile : public ObjectFile {
446 LLVM_ELF_IMPORT_TYPES(target_endianness, is64Bits)
448 typedef Elf_Ehdr_Impl<target_endianness, is64Bits> Elf_Ehdr;
449 typedef Elf_Shdr_Impl<target_endianness, is64Bits> Elf_Shdr;
450 typedef Elf_Sym_Impl<target_endianness, is64Bits> Elf_Sym;
451 typedef Elf_Dyn_Impl<target_endianness, is64Bits> Elf_Dyn;
452 typedef Elf_Rel_Impl<target_endianness, is64Bits, false> Elf_Rel;
453 typedef Elf_Rel_Impl<target_endianness, is64Bits, true> Elf_Rela;
454 typedef Elf_Verdef_Impl<target_endianness, is64Bits> Elf_Verdef;
455 typedef Elf_Verdaux_Impl<target_endianness, is64Bits> Elf_Verdaux;
456 typedef Elf_Verneed_Impl<target_endianness, is64Bits> Elf_Verneed;
457 typedef Elf_Vernaux_Impl<target_endianness, is64Bits> Elf_Vernaux;
458 typedef Elf_Versym_Impl<target_endianness, is64Bits> Elf_Versym;
459 typedef DynRefImpl<target_endianness, is64Bits> DynRef;
460 typedef content_iterator<DynRef> dyn_iterator;
463 // This flag is used for classof, to distinguish ELFObjectFile from
464 // its subclass. If more subclasses will be created, this flag will
465 // have to become an enum.
466 bool isDyldELFObject;
469 typedef SmallVector<const Elf_Shdr*, 1> Sections_t;
470 typedef DenseMap<unsigned, unsigned> IndexMap_t;
471 typedef DenseMap<const Elf_Shdr*, SmallVector<uint32_t, 1> > RelocMap_t;
473 const Elf_Ehdr *Header;
474 const Elf_Shdr *SectionHeaderTable;
475 const Elf_Shdr *dot_shstrtab_sec; // Section header string table.
476 const Elf_Shdr *dot_strtab_sec; // Symbol header string table.
477 const Elf_Shdr *dot_dynstr_sec; // Dynamic symbol string table.
479 // SymbolTableSections[0] always points to the dynamic string table section
480 // header, or NULL if there is no dynamic string table.
481 Sections_t SymbolTableSections;
482 IndexMap_t SymbolTableSectionsIndexMap;
483 DenseMap<const Elf_Sym*, ELF::Elf64_Word> ExtendedSymbolTable;
485 const Elf_Shdr *dot_dynamic_sec; // .dynamic
486 const Elf_Shdr *dot_gnu_version_sec; // .gnu.version
487 const Elf_Shdr *dot_gnu_version_r_sec; // .gnu.version_r
488 const Elf_Shdr *dot_gnu_version_d_sec; // .gnu.version_d
490 // Pointer to SONAME entry in dynamic string table
491 // This is set the first time getLoadName is called.
492 mutable const char *dt_soname;
495 /// \brief Iterate over relocations in a .rel or .rela section.
496 template<class RelocT>
497 class ELFRelocationIterator {
499 typedef void difference_type;
500 typedef const RelocT value_type;
501 typedef std::forward_iterator_tag iterator_category;
502 typedef value_type &reference;
503 typedef value_type *pointer;
505 /// \brief Default construct iterator.
506 ELFRelocationIterator() : Section(0), Current(0) {}
507 ELFRelocationIterator(const Elf_Shdr *Sec, const char *Start)
511 reference operator *() {
512 assert(Current && "Attempted to dereference an invalid iterator!");
513 return *reinterpret_cast<const RelocT*>(Current);
516 pointer operator ->() {
517 assert(Current && "Attempted to dereference an invalid iterator!");
518 return reinterpret_cast<const RelocT*>(Current);
521 bool operator ==(const ELFRelocationIterator &Other) {
522 return Section == Other.Section && Current == Other.Current;
525 bool operator !=(const ELFRelocationIterator &Other) {
526 return !(*this == Other);
529 ELFRelocationIterator &operator ++(int) {
530 assert(Current && "Attempted to increment an invalid iterator!");
531 Current += Section->sh_entsize;
535 ELFRelocationIterator operator ++() {
536 ELFRelocationIterator Tmp = *this;
542 const Elf_Shdr *Section;
547 // Records for each version index the corresponding Verdef or Vernaux entry.
548 // This is filled the first time LoadVersionMap() is called.
549 class VersionMapEntry : public PointerIntPair<const void*, 1> {
551 // If the integer is 0, this is an Elf_Verdef*.
552 // If the integer is 1, this is an Elf_Vernaux*.
553 VersionMapEntry() : PointerIntPair<const void*, 1>(NULL, 0) { }
554 VersionMapEntry(const Elf_Verdef *verdef)
555 : PointerIntPair<const void*, 1>(verdef, 0) { }
556 VersionMapEntry(const Elf_Vernaux *vernaux)
557 : PointerIntPair<const void*, 1>(vernaux, 1) { }
558 bool isNull() const { return getPointer() == NULL; }
559 bool isVerdef() const { return !isNull() && getInt() == 0; }
560 bool isVernaux() const { return !isNull() && getInt() == 1; }
561 const Elf_Verdef *getVerdef() const {
562 return isVerdef() ? (const Elf_Verdef*)getPointer() : NULL;
564 const Elf_Vernaux *getVernaux() const {
565 return isVernaux() ? (const Elf_Vernaux*)getPointer() : NULL;
568 mutable SmallVector<VersionMapEntry, 16> VersionMap;
569 void LoadVersionDefs(const Elf_Shdr *sec) const;
570 void LoadVersionNeeds(const Elf_Shdr *ec) const;
571 void LoadVersionMap() const;
573 /// @brief Map sections to an array of relocation sections that reference
574 /// them sorted by section index.
575 RelocMap_t SectionRelocMap;
577 /// @brief Get the relocation section that contains \a Rel.
578 const Elf_Shdr *getRelSection(DataRefImpl Rel) const {
579 return getSection(Rel.w.b);
582 bool isRelocationHasAddend(DataRefImpl Rel) const;
584 const T *getEntry(uint16_t Section, uint32_t Entry) const;
586 const T *getEntry(const Elf_Shdr *Section, uint32_t Entry) const;
587 const Elf_Shdr *getSection(DataRefImpl index) const;
588 const Elf_Shdr *getSection(uint32_t index) const;
589 const Elf_Rel *getRel(DataRefImpl Rel) const;
590 const Elf_Rela *getRela(DataRefImpl Rela) const;
591 const char *getString(uint32_t section, uint32_t offset) const;
592 const char *getString(const Elf_Shdr *section, uint32_t offset) const;
593 error_code getSymbolVersion(const Elf_Shdr *section,
596 bool &IsDefault) const;
597 void VerifyStrTab(const Elf_Shdr *sh) const;
600 const Elf_Sym *getSymbol(DataRefImpl Symb) const; // FIXME: Should be private?
601 void validateSymbol(DataRefImpl Symb) const;
604 error_code getSymbolName(const Elf_Shdr *section,
606 StringRef &Res) const;
607 error_code getSectionName(const Elf_Shdr *section,
608 StringRef &Res) const;
609 const Elf_Dyn *getDyn(DataRefImpl DynData) const;
610 error_code getSymbolVersion(SymbolRef Symb, StringRef &Version,
611 bool &IsDefault) const;
612 uint64_t getSymbolIndex(const Elf_Sym *sym) const;
614 virtual error_code getSymbolNext(DataRefImpl Symb, SymbolRef &Res) const;
615 virtual error_code getSymbolName(DataRefImpl Symb, StringRef &Res) const;
616 virtual error_code getSymbolFileOffset(DataRefImpl Symb, uint64_t &Res) const;
617 virtual error_code getSymbolAddress(DataRefImpl Symb, uint64_t &Res) const;
618 virtual error_code getSymbolSize(DataRefImpl Symb, uint64_t &Res) const;
619 virtual error_code getSymbolNMTypeChar(DataRefImpl Symb, char &Res) const;
620 virtual error_code getSymbolFlags(DataRefImpl Symb, uint32_t &Res) const;
621 virtual error_code getSymbolType(DataRefImpl Symb, SymbolRef::Type &Res) const;
622 virtual error_code getSymbolSection(DataRefImpl Symb,
623 section_iterator &Res) const;
624 virtual error_code getSymbolValue(DataRefImpl Symb, uint64_t &Val) const;
626 friend class DynRefImpl<target_endianness, is64Bits>;
627 virtual error_code getDynNext(DataRefImpl DynData, DynRef &Result) const;
629 virtual error_code getLibraryNext(DataRefImpl Data, LibraryRef &Result) const;
630 virtual error_code getLibraryPath(DataRefImpl Data, StringRef &Res) const;
632 virtual error_code getSectionNext(DataRefImpl Sec, SectionRef &Res) const;
633 virtual error_code getSectionName(DataRefImpl Sec, StringRef &Res) const;
634 virtual error_code getSectionAddress(DataRefImpl Sec, uint64_t &Res) const;
635 virtual error_code getSectionSize(DataRefImpl Sec, uint64_t &Res) const;
636 virtual error_code getSectionContents(DataRefImpl Sec, StringRef &Res) const;
637 virtual error_code getSectionAlignment(DataRefImpl Sec, uint64_t &Res) const;
638 virtual error_code isSectionText(DataRefImpl Sec, bool &Res) const;
639 virtual error_code isSectionData(DataRefImpl Sec, bool &Res) const;
640 virtual error_code isSectionBSS(DataRefImpl Sec, bool &Res) const;
641 virtual error_code isSectionRequiredForExecution(DataRefImpl Sec,
643 virtual error_code isSectionVirtual(DataRefImpl Sec, bool &Res) const;
644 virtual error_code isSectionZeroInit(DataRefImpl Sec, bool &Res) const;
645 virtual error_code isSectionReadOnlyData(DataRefImpl Sec, bool &Res) const;
646 virtual error_code sectionContainsSymbol(DataRefImpl Sec, DataRefImpl Symb,
648 virtual relocation_iterator getSectionRelBegin(DataRefImpl Sec) const;
649 virtual relocation_iterator getSectionRelEnd(DataRefImpl Sec) const;
651 virtual error_code getRelocationNext(DataRefImpl Rel,
652 RelocationRef &Res) const;
653 virtual error_code getRelocationAddress(DataRefImpl Rel,
654 uint64_t &Res) const;
655 virtual error_code getRelocationOffset(DataRefImpl Rel,
656 uint64_t &Res) const;
657 virtual error_code getRelocationSymbol(DataRefImpl Rel,
658 SymbolRef &Res) const;
659 virtual error_code getRelocationType(DataRefImpl Rel,
660 uint64_t &Res) const;
661 virtual error_code getRelocationTypeName(DataRefImpl Rel,
662 SmallVectorImpl<char> &Result) const;
663 virtual error_code getRelocationAdditionalInfo(DataRefImpl Rel,
665 virtual error_code getRelocationValueString(DataRefImpl Rel,
666 SmallVectorImpl<char> &Result) const;
669 ELFObjectFile(MemoryBuffer *Object, error_code &ec);
670 virtual symbol_iterator begin_symbols() const;
671 virtual symbol_iterator end_symbols() const;
673 virtual symbol_iterator begin_dynamic_symbols() const;
674 virtual symbol_iterator end_dynamic_symbols() const;
676 virtual section_iterator begin_sections() const;
677 virtual section_iterator end_sections() const;
679 virtual library_iterator begin_libraries_needed() const;
680 virtual library_iterator end_libraries_needed() const;
682 virtual dyn_iterator begin_dynamic_table() const;
683 virtual dyn_iterator end_dynamic_table() const;
685 typedef ELFRelocationIterator<Elf_Rela> Elf_Rela_Iter;
686 typedef ELFRelocationIterator<Elf_Rel> Elf_Rel_Iter;
688 virtual Elf_Rela_Iter beginELFRela(const Elf_Shdr *sec) const {
689 return Elf_Rela_Iter(sec, (const char *)(base() + sec->sh_offset));
692 virtual Elf_Rela_Iter endELFRela(const Elf_Shdr *sec) const {
693 return Elf_Rela_Iter(sec, (const char *)
694 (base() + sec->sh_offset + sec->sh_size));
697 virtual Elf_Rel_Iter beginELFRel(const Elf_Shdr *sec) const {
698 return Elf_Rel_Iter(sec, (const char *)(base() + sec->sh_offset));
701 virtual Elf_Rel_Iter endELFRel(const Elf_Shdr *sec) const {
702 return Elf_Rel_Iter(sec, (const char *)
703 (base() + sec->sh_offset + sec->sh_size));
706 virtual uint8_t getBytesInAddress() const;
707 virtual StringRef getFileFormatName() const;
708 virtual StringRef getObjectType() const { return "ELF"; }
709 virtual unsigned getArch() const;
710 virtual StringRef getLoadName() const;
711 virtual error_code getSectionContents(const Elf_Shdr *sec,
712 StringRef &Res) const;
714 uint64_t getNumSections() const;
715 uint64_t getStringTableIndex() const;
716 ELF::Elf64_Word getSymbolTableIndex(const Elf_Sym *symb) const;
717 const Elf_Shdr *getSection(const Elf_Sym *symb) const;
718 const Elf_Shdr *getElfSection(section_iterator &It) const;
719 const Elf_Sym *getElfSymbol(symbol_iterator &It) const;
720 const Elf_Sym *getElfSymbol(uint32_t index) const;
722 // Methods for type inquiry through isa, cast, and dyn_cast
723 bool isDyldType() const { return isDyldELFObject; }
724 static inline bool classof(const Binary *v) {
725 return v->getType() == getELFType(target_endianness == support::little,
730 // Iterate through the version definitions, and place each Elf_Verdef
731 // in the VersionMap according to its index.
732 template<support::endianness target_endianness, bool is64Bits>
733 void ELFObjectFile<target_endianness, is64Bits>::
734 LoadVersionDefs(const Elf_Shdr *sec) const {
735 unsigned vd_size = sec->sh_size; // Size of section in bytes
736 unsigned vd_count = sec->sh_info; // Number of Verdef entries
737 const char *sec_start = (const char*)base() + sec->sh_offset;
738 const char *sec_end = sec_start + vd_size;
739 // The first Verdef entry is at the start of the section.
740 const char *p = sec_start;
741 for (unsigned i = 0; i < vd_count; i++) {
742 if (p + sizeof(Elf_Verdef) > sec_end)
743 report_fatal_error("Section ended unexpectedly while scanning "
744 "version definitions.");
745 const Elf_Verdef *vd = reinterpret_cast<const Elf_Verdef *>(p);
746 if (vd->vd_version != ELF::VER_DEF_CURRENT)
747 report_fatal_error("Unexpected verdef version");
748 size_t index = vd->vd_ndx & ELF::VERSYM_VERSION;
749 if (index >= VersionMap.size())
750 VersionMap.resize(index+1);
751 VersionMap[index] = VersionMapEntry(vd);
756 // Iterate through the versions needed section, and place each Elf_Vernaux
757 // in the VersionMap according to its index.
758 template<support::endianness target_endianness, bool is64Bits>
759 void ELFObjectFile<target_endianness, is64Bits>::
760 LoadVersionNeeds(const Elf_Shdr *sec) const {
761 unsigned vn_size = sec->sh_size; // Size of section in bytes
762 unsigned vn_count = sec->sh_info; // Number of Verneed entries
763 const char *sec_start = (const char*)base() + sec->sh_offset;
764 const char *sec_end = sec_start + vn_size;
765 // The first Verneed entry is at the start of the section.
766 const char *p = sec_start;
767 for (unsigned i = 0; i < vn_count; i++) {
768 if (p + sizeof(Elf_Verneed) > sec_end)
769 report_fatal_error("Section ended unexpectedly while scanning "
770 "version needed records.");
771 const Elf_Verneed *vn = reinterpret_cast<const Elf_Verneed *>(p);
772 if (vn->vn_version != ELF::VER_NEED_CURRENT)
773 report_fatal_error("Unexpected verneed version");
774 // Iterate through the Vernaux entries
775 const char *paux = p + vn->vn_aux;
776 for (unsigned j = 0; j < vn->vn_cnt; j++) {
777 if (paux + sizeof(Elf_Vernaux) > sec_end)
778 report_fatal_error("Section ended unexpected while scanning auxiliary "
779 "version needed records.");
780 const Elf_Vernaux *vna = reinterpret_cast<const Elf_Vernaux *>(paux);
781 size_t index = vna->vna_other & ELF::VERSYM_VERSION;
782 if (index >= VersionMap.size())
783 VersionMap.resize(index+1);
784 VersionMap[index] = VersionMapEntry(vna);
785 paux += vna->vna_next;
791 template<support::endianness target_endianness, bool is64Bits>
792 void ELFObjectFile<target_endianness, is64Bits>::LoadVersionMap() const {
793 // If there is no dynamic symtab or version table, there is nothing to do.
794 if (SymbolTableSections[0] == NULL || dot_gnu_version_sec == NULL)
797 // Has the VersionMap already been loaded?
798 if (VersionMap.size() > 0)
801 // The first two version indexes are reserved.
802 // Index 0 is LOCAL, index 1 is GLOBAL.
803 VersionMap.push_back(VersionMapEntry());
804 VersionMap.push_back(VersionMapEntry());
806 if (dot_gnu_version_d_sec)
807 LoadVersionDefs(dot_gnu_version_d_sec);
809 if (dot_gnu_version_r_sec)
810 LoadVersionNeeds(dot_gnu_version_r_sec);
813 template<support::endianness target_endianness, bool is64Bits>
814 void ELFObjectFile<target_endianness, is64Bits>
815 ::validateSymbol(DataRefImpl Symb) const {
816 const Elf_Sym *symb = getSymbol(Symb);
817 const Elf_Shdr *SymbolTableSection = SymbolTableSections[Symb.d.b];
818 // FIXME: We really need to do proper error handling in the case of an invalid
819 // input file. Because we don't use exceptions, I think we'll just pass
820 // an error object around.
822 && SymbolTableSection
823 && symb >= (const Elf_Sym*)(base()
824 + SymbolTableSection->sh_offset)
825 && symb < (const Elf_Sym*)(base()
826 + SymbolTableSection->sh_offset
827 + SymbolTableSection->sh_size)))
828 // FIXME: Proper error handling.
829 report_fatal_error("Symb must point to a valid symbol!");
832 template<support::endianness target_endianness, bool is64Bits>
833 error_code ELFObjectFile<target_endianness, is64Bits>
834 ::getSymbolNext(DataRefImpl Symb,
835 SymbolRef &Result) const {
836 validateSymbol(Symb);
837 const Elf_Shdr *SymbolTableSection = SymbolTableSections[Symb.d.b];
840 // Check to see if we are at the end of this symbol table.
841 if (Symb.d.a >= SymbolTableSection->getEntityCount()) {
842 // We are at the end. If there are other symbol tables, jump to them.
843 // If the symbol table is .dynsym, we are iterating dynamic symbols,
844 // and there is only one table of these.
847 Symb.d.a = 1; // The 0th symbol in ELF is fake.
849 // Otherwise return the terminator.
850 if (Symb.d.b == 0 || Symb.d.b >= SymbolTableSections.size()) {
851 Symb.d.a = std::numeric_limits<uint32_t>::max();
852 Symb.d.b = std::numeric_limits<uint32_t>::max();
856 Result = SymbolRef(Symb, this);
857 return object_error::success;
860 template<support::endianness target_endianness, bool is64Bits>
861 error_code ELFObjectFile<target_endianness, is64Bits>
862 ::getSymbolName(DataRefImpl Symb,
863 StringRef &Result) const {
864 validateSymbol(Symb);
865 const Elf_Sym *symb = getSymbol(Symb);
866 return getSymbolName(SymbolTableSections[Symb.d.b], symb, Result);
869 template<support::endianness target_endianness, bool is64Bits>
870 error_code ELFObjectFile<target_endianness, is64Bits>
871 ::getSymbolVersion(SymbolRef SymRef,
873 bool &IsDefault) const {
874 DataRefImpl Symb = SymRef.getRawDataRefImpl();
875 validateSymbol(Symb);
876 const Elf_Sym *symb = getSymbol(Symb);
877 return getSymbolVersion(SymbolTableSections[Symb.d.b], symb,
881 template<support::endianness target_endianness, bool is64Bits>
882 ELF::Elf64_Word ELFObjectFile<target_endianness, is64Bits>
883 ::getSymbolTableIndex(const Elf_Sym *symb) const {
884 if (symb->st_shndx == ELF::SHN_XINDEX)
885 return ExtendedSymbolTable.lookup(symb);
886 return symb->st_shndx;
889 template<support::endianness target_endianness, bool is64Bits>
890 const typename ELFObjectFile<target_endianness, is64Bits>::Elf_Shdr *
891 ELFObjectFile<target_endianness, is64Bits>
892 ::getSection(const Elf_Sym *symb) const {
893 if (symb->st_shndx == ELF::SHN_XINDEX)
894 return getSection(ExtendedSymbolTable.lookup(symb));
895 if (symb->st_shndx >= ELF::SHN_LORESERVE)
897 return getSection(symb->st_shndx);
900 template<support::endianness target_endianness, bool is64Bits>
901 const typename ELFObjectFile<target_endianness, is64Bits>::Elf_Shdr *
902 ELFObjectFile<target_endianness, is64Bits>
903 ::getElfSection(section_iterator &It) const {
904 llvm::object::DataRefImpl ShdrRef = It->getRawDataRefImpl();
905 return reinterpret_cast<const Elf_Shdr *>(ShdrRef.p);
908 template<support::endianness target_endianness, bool is64Bits>
909 const typename ELFObjectFile<target_endianness, is64Bits>::Elf_Sym *
910 ELFObjectFile<target_endianness, is64Bits>
911 ::getElfSymbol(symbol_iterator &It) const {
912 return getSymbol(It->getRawDataRefImpl());
915 template<support::endianness target_endianness, bool is64Bits>
916 const typename ELFObjectFile<target_endianness, is64Bits>::Elf_Sym *
917 ELFObjectFile<target_endianness, is64Bits>
918 ::getElfSymbol(uint32_t index) const {
919 DataRefImpl SymbolData;
920 SymbolData.d.a = index;
922 return getSymbol(SymbolData);
925 template<support::endianness target_endianness, bool is64Bits>
926 error_code ELFObjectFile<target_endianness, is64Bits>
927 ::getSymbolFileOffset(DataRefImpl Symb,
928 uint64_t &Result) const {
929 validateSymbol(Symb);
930 const Elf_Sym *symb = getSymbol(Symb);
931 const Elf_Shdr *Section;
932 switch (getSymbolTableIndex(symb)) {
933 case ELF::SHN_COMMON:
934 // Unintialized symbols have no offset in the object file
936 Result = UnknownAddressOrSize;
937 return object_error::success;
939 Result = symb->st_value;
940 return object_error::success;
941 default: Section = getSection(symb);
944 switch (symb->getType()) {
945 case ELF::STT_SECTION:
946 Result = Section ? Section->sh_addr : UnknownAddressOrSize;
947 return object_error::success;
949 case ELF::STT_OBJECT:
950 case ELF::STT_NOTYPE:
951 Result = symb->st_value +
952 (Section ? Section->sh_offset : 0);
953 return object_error::success;
955 Result = UnknownAddressOrSize;
956 return object_error::success;
960 template<support::endianness target_endianness, bool is64Bits>
961 error_code ELFObjectFile<target_endianness, is64Bits>
962 ::getSymbolAddress(DataRefImpl Symb,
963 uint64_t &Result) const {
964 validateSymbol(Symb);
965 const Elf_Sym *symb = getSymbol(Symb);
966 const Elf_Shdr *Section;
967 switch (getSymbolTableIndex(symb)) {
968 case ELF::SHN_COMMON:
970 Result = UnknownAddressOrSize;
971 return object_error::success;
973 Result = symb->st_value;
974 return object_error::success;
975 default: Section = getSection(symb);
978 switch (symb->getType()) {
979 case ELF::STT_SECTION:
980 Result = Section ? Section->sh_addr : UnknownAddressOrSize;
981 return object_error::success;
983 case ELF::STT_OBJECT:
984 case ELF::STT_NOTYPE:
986 switch(Header->e_type) {
989 IsRelocatable = false;
992 IsRelocatable = true;
994 Result = symb->st_value;
995 if (IsRelocatable && Section != 0)
996 Result += Section->sh_addr;
997 return object_error::success;
999 Result = UnknownAddressOrSize;
1000 return object_error::success;
1004 template<support::endianness target_endianness, bool is64Bits>
1005 error_code ELFObjectFile<target_endianness, is64Bits>
1006 ::getSymbolSize(DataRefImpl Symb,
1007 uint64_t &Result) const {
1008 validateSymbol(Symb);
1009 const Elf_Sym *symb = getSymbol(Symb);
1010 if (symb->st_size == 0)
1011 Result = UnknownAddressOrSize;
1012 Result = symb->st_size;
1013 return object_error::success;
1016 template<support::endianness target_endianness, bool is64Bits>
1017 error_code ELFObjectFile<target_endianness, is64Bits>
1018 ::getSymbolNMTypeChar(DataRefImpl Symb,
1019 char &Result) const {
1020 validateSymbol(Symb);
1021 const Elf_Sym *symb = getSymbol(Symb);
1022 const Elf_Shdr *Section = getSection(symb);
1027 switch (Section->sh_type) {
1028 case ELF::SHT_PROGBITS:
1029 case ELF::SHT_DYNAMIC:
1030 switch (Section->sh_flags) {
1031 case (ELF::SHF_ALLOC | ELF::SHF_EXECINSTR):
1033 case (ELF::SHF_ALLOC | ELF::SHF_WRITE):
1035 case ELF::SHF_ALLOC:
1036 case (ELF::SHF_ALLOC | ELF::SHF_MERGE):
1037 case (ELF::SHF_ALLOC | ELF::SHF_MERGE | ELF::SHF_STRINGS):
1041 case ELF::SHT_NOBITS: ret = 'b';
1045 switch (getSymbolTableIndex(symb)) {
1046 case ELF::SHN_UNDEF:
1050 case ELF::SHN_ABS: ret = 'a'; break;
1051 case ELF::SHN_COMMON: ret = 'c'; break;
1054 switch (symb->getBinding()) {
1055 case ELF::STB_GLOBAL: ret = ::toupper(ret); break;
1057 if (getSymbolTableIndex(symb) == ELF::SHN_UNDEF)
1060 if (symb->getType() == ELF::STT_OBJECT)
1066 if (ret == '?' && symb->getType() == ELF::STT_SECTION) {
1068 if (error_code ec = getSymbolName(Symb, name))
1070 Result = StringSwitch<char>(name)
1071 .StartsWith(".debug", 'N')
1072 .StartsWith(".note", 'n')
1074 return object_error::success;
1078 return object_error::success;
1081 template<support::endianness target_endianness, bool is64Bits>
1082 error_code ELFObjectFile<target_endianness, is64Bits>
1083 ::getSymbolType(DataRefImpl Symb,
1084 SymbolRef::Type &Result) const {
1085 validateSymbol(Symb);
1086 const Elf_Sym *symb = getSymbol(Symb);
1088 switch (symb->getType()) {
1089 case ELF::STT_NOTYPE:
1090 Result = SymbolRef::ST_Unknown;
1092 case ELF::STT_SECTION:
1093 Result = SymbolRef::ST_Debug;
1096 Result = SymbolRef::ST_File;
1099 Result = SymbolRef::ST_Function;
1101 case ELF::STT_OBJECT:
1102 case ELF::STT_COMMON:
1104 Result = SymbolRef::ST_Data;
1107 Result = SymbolRef::ST_Other;
1110 return object_error::success;
1113 template<support::endianness target_endianness, bool is64Bits>
1114 error_code ELFObjectFile<target_endianness, is64Bits>
1115 ::getSymbolFlags(DataRefImpl Symb,
1116 uint32_t &Result) const {
1117 validateSymbol(Symb);
1118 const Elf_Sym *symb = getSymbol(Symb);
1120 Result = SymbolRef::SF_None;
1122 if (symb->getBinding() != ELF::STB_LOCAL)
1123 Result |= SymbolRef::SF_Global;
1125 if (symb->getBinding() == ELF::STB_WEAK)
1126 Result |= SymbolRef::SF_Weak;
1128 if (symb->st_shndx == ELF::SHN_ABS)
1129 Result |= SymbolRef::SF_Absolute;
1131 if (symb->getType() == ELF::STT_FILE ||
1132 symb->getType() == ELF::STT_SECTION)
1133 Result |= SymbolRef::SF_FormatSpecific;
1135 if (getSymbolTableIndex(symb) == ELF::SHN_UNDEF)
1136 Result |= SymbolRef::SF_Undefined;
1138 if (symb->getType() == ELF::STT_COMMON ||
1139 getSymbolTableIndex(symb) == ELF::SHN_COMMON)
1140 Result |= SymbolRef::SF_Common;
1142 if (symb->getType() == ELF::STT_TLS)
1143 Result |= SymbolRef::SF_ThreadLocal;
1145 return object_error::success;
1148 template<support::endianness target_endianness, bool is64Bits>
1149 error_code ELFObjectFile<target_endianness, is64Bits>
1150 ::getSymbolSection(DataRefImpl Symb,
1151 section_iterator &Res) const {
1152 validateSymbol(Symb);
1153 const Elf_Sym *symb = getSymbol(Symb);
1154 const Elf_Shdr *sec = getSection(symb);
1156 Res = end_sections();
1159 Sec.p = reinterpret_cast<intptr_t>(sec);
1160 Res = section_iterator(SectionRef(Sec, this));
1162 return object_error::success;
1165 template<support::endianness target_endianness, bool is64Bits>
1166 error_code ELFObjectFile<target_endianness, is64Bits>
1167 ::getSymbolValue(DataRefImpl Symb,
1168 uint64_t &Val) const {
1169 validateSymbol(Symb);
1170 const Elf_Sym *symb = getSymbol(Symb);
1171 Val = symb->st_value;
1172 return object_error::success;
1175 template<support::endianness target_endianness, bool is64Bits>
1176 error_code ELFObjectFile<target_endianness, is64Bits>
1177 ::getSectionNext(DataRefImpl Sec, SectionRef &Result) const {
1178 const uint8_t *sec = reinterpret_cast<const uint8_t *>(Sec.p);
1179 sec += Header->e_shentsize;
1180 Sec.p = reinterpret_cast<intptr_t>(sec);
1181 Result = SectionRef(Sec, this);
1182 return object_error::success;
1185 template<support::endianness target_endianness, bool is64Bits>
1186 error_code ELFObjectFile<target_endianness, is64Bits>
1187 ::getSectionName(DataRefImpl Sec,
1188 StringRef &Result) const {
1189 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1190 Result = StringRef(getString(dot_shstrtab_sec, sec->sh_name));
1191 return object_error::success;
1194 template<support::endianness target_endianness, bool is64Bits>
1195 error_code ELFObjectFile<target_endianness, is64Bits>
1196 ::getSectionAddress(DataRefImpl Sec,
1197 uint64_t &Result) const {
1198 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1199 Result = sec->sh_addr;
1200 return object_error::success;
1203 template<support::endianness target_endianness, bool is64Bits>
1204 error_code ELFObjectFile<target_endianness, is64Bits>
1205 ::getSectionSize(DataRefImpl Sec,
1206 uint64_t &Result) const {
1207 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1208 Result = sec->sh_size;
1209 return object_error::success;
1212 template<support::endianness target_endianness, bool is64Bits>
1213 error_code ELFObjectFile<target_endianness, is64Bits>
1214 ::getSectionContents(DataRefImpl Sec,
1215 StringRef &Result) const {
1216 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1217 const char *start = (const char*)base() + sec->sh_offset;
1218 Result = StringRef(start, sec->sh_size);
1219 return object_error::success;
1222 template<support::endianness target_endianness, bool is64Bits>
1223 error_code ELFObjectFile<target_endianness, is64Bits>
1224 ::getSectionContents(const Elf_Shdr *Sec,
1225 StringRef &Result) const {
1226 const char *start = (const char*)base() + Sec->sh_offset;
1227 Result = StringRef(start, Sec->sh_size);
1228 return object_error::success;
1231 template<support::endianness target_endianness, bool is64Bits>
1232 error_code ELFObjectFile<target_endianness, is64Bits>
1233 ::getSectionAlignment(DataRefImpl Sec,
1234 uint64_t &Result) const {
1235 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1236 Result = sec->sh_addralign;
1237 return object_error::success;
1240 template<support::endianness target_endianness, bool is64Bits>
1241 error_code ELFObjectFile<target_endianness, is64Bits>
1242 ::isSectionText(DataRefImpl Sec,
1243 bool &Result) const {
1244 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1245 if (sec->sh_flags & ELF::SHF_EXECINSTR)
1249 return object_error::success;
1252 template<support::endianness target_endianness, bool is64Bits>
1253 error_code ELFObjectFile<target_endianness, is64Bits>
1254 ::isSectionData(DataRefImpl Sec,
1255 bool &Result) const {
1256 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1257 if (sec->sh_flags & (ELF::SHF_ALLOC | ELF::SHF_WRITE)
1258 && sec->sh_type == ELF::SHT_PROGBITS)
1262 return object_error::success;
1265 template<support::endianness target_endianness, bool is64Bits>
1266 error_code ELFObjectFile<target_endianness, is64Bits>
1267 ::isSectionBSS(DataRefImpl Sec,
1268 bool &Result) const {
1269 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1270 if (sec->sh_flags & (ELF::SHF_ALLOC | ELF::SHF_WRITE)
1271 && sec->sh_type == ELF::SHT_NOBITS)
1275 return object_error::success;
1278 template<support::endianness target_endianness, bool is64Bits>
1279 error_code ELFObjectFile<target_endianness, is64Bits>
1280 ::isSectionRequiredForExecution(DataRefImpl Sec,
1281 bool &Result) const {
1282 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1283 if (sec->sh_flags & ELF::SHF_ALLOC)
1287 return object_error::success;
1290 template<support::endianness target_endianness, bool is64Bits>
1291 error_code ELFObjectFile<target_endianness, is64Bits>
1292 ::isSectionVirtual(DataRefImpl Sec,
1293 bool &Result) const {
1294 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1295 if (sec->sh_type == ELF::SHT_NOBITS)
1299 return object_error::success;
1302 template<support::endianness target_endianness, bool is64Bits>
1303 error_code ELFObjectFile<target_endianness, is64Bits>
1304 ::isSectionZeroInit(DataRefImpl Sec,
1305 bool &Result) const {
1306 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1307 // For ELF, all zero-init sections are virtual (that is, they occupy no space
1308 // in the object image) and vice versa.
1309 if (sec->sh_flags & ELF::SHT_NOBITS)
1313 return object_error::success;
1316 template<support::endianness target_endianness, bool is64Bits>
1317 error_code ELFObjectFile<target_endianness, is64Bits>
1318 ::isSectionReadOnlyData(DataRefImpl Sec,
1319 bool &Result) const {
1320 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1321 if (sec->sh_flags & ELF::SHF_WRITE || sec->sh_flags & ELF::SHF_EXECINSTR)
1325 return object_error::success;
1328 template<support::endianness target_endianness, bool is64Bits>
1329 error_code ELFObjectFile<target_endianness, is64Bits>
1330 ::sectionContainsSymbol(DataRefImpl Sec,
1332 bool &Result) const {
1333 // FIXME: Unimplemented.
1335 return object_error::success;
1338 template<support::endianness target_endianness, bool is64Bits>
1339 relocation_iterator ELFObjectFile<target_endianness, is64Bits>
1340 ::getSectionRelBegin(DataRefImpl Sec) const {
1341 DataRefImpl RelData;
1342 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1343 typename RelocMap_t::const_iterator ittr = SectionRelocMap.find(sec);
1344 if (sec != 0 && ittr != SectionRelocMap.end()) {
1345 RelData.w.a = getSection(ittr->second[0])->sh_info;
1346 RelData.w.b = ittr->second[0];
1349 return relocation_iterator(RelocationRef(RelData, this));
1352 template<support::endianness target_endianness, bool is64Bits>
1353 relocation_iterator ELFObjectFile<target_endianness, is64Bits>
1354 ::getSectionRelEnd(DataRefImpl Sec) const {
1355 DataRefImpl RelData;
1356 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1357 typename RelocMap_t::const_iterator ittr = SectionRelocMap.find(sec);
1358 if (sec != 0 && ittr != SectionRelocMap.end()) {
1359 // Get the index of the last relocation section for this section.
1360 std::size_t relocsecindex = ittr->second[ittr->second.size() - 1];
1361 const Elf_Shdr *relocsec = getSection(relocsecindex);
1362 RelData.w.a = relocsec->sh_info;
1363 RelData.w.b = relocsecindex;
1364 RelData.w.c = relocsec->sh_size / relocsec->sh_entsize;
1366 return relocation_iterator(RelocationRef(RelData, this));
1370 template<support::endianness target_endianness, bool is64Bits>
1371 error_code ELFObjectFile<target_endianness, is64Bits>
1372 ::getRelocationNext(DataRefImpl Rel,
1373 RelocationRef &Result) const {
1375 const Elf_Shdr *relocsec = getSection(Rel.w.b);
1376 if (Rel.w.c >= (relocsec->sh_size / relocsec->sh_entsize)) {
1377 // We have reached the end of the relocations for this section. See if there
1378 // is another relocation section.
1379 typename RelocMap_t::mapped_type relocseclist =
1380 SectionRelocMap.lookup(getSection(Rel.w.a));
1382 // Do a binary search for the current reloc section index (which must be
1383 // present). Then get the next one.
1384 typename RelocMap_t::mapped_type::const_iterator loc =
1385 std::lower_bound(relocseclist.begin(), relocseclist.end(), Rel.w.b);
1388 // If there is no next one, don't do anything. The ++Rel.w.c above sets Rel
1389 // to the end iterator.
1390 if (loc != relocseclist.end()) {
1395 Result = RelocationRef(Rel, this);
1396 return object_error::success;
1399 template<support::endianness target_endianness, bool is64Bits>
1400 error_code ELFObjectFile<target_endianness, is64Bits>
1401 ::getRelocationSymbol(DataRefImpl Rel,
1402 SymbolRef &Result) const {
1404 const Elf_Shdr *sec = getSection(Rel.w.b);
1405 switch (sec->sh_type) {
1407 report_fatal_error("Invalid section type in Rel!");
1408 case ELF::SHT_REL : {
1409 symbolIdx = getRel(Rel)->getSymbol();
1412 case ELF::SHT_RELA : {
1413 symbolIdx = getRela(Rel)->getSymbol();
1417 DataRefImpl SymbolData;
1418 IndexMap_t::const_iterator it = SymbolTableSectionsIndexMap.find(sec->sh_link);
1419 if (it == SymbolTableSectionsIndexMap.end())
1420 report_fatal_error("Relocation symbol table not found!");
1421 SymbolData.d.a = symbolIdx;
1422 SymbolData.d.b = it->second;
1423 Result = SymbolRef(SymbolData, this);
1424 return object_error::success;
1427 template<support::endianness target_endianness, bool is64Bits>
1428 error_code ELFObjectFile<target_endianness, is64Bits>
1429 ::getRelocationAddress(DataRefImpl Rel,
1430 uint64_t &Result) const {
1432 const Elf_Shdr *sec = getSection(Rel.w.b);
1433 switch (sec->sh_type) {
1435 report_fatal_error("Invalid section type in Rel!");
1436 case ELF::SHT_REL : {
1437 offset = getRel(Rel)->r_offset;
1440 case ELF::SHT_RELA : {
1441 offset = getRela(Rel)->r_offset;
1447 return object_error::success;
1450 template<support::endianness target_endianness, bool is64Bits>
1451 error_code ELFObjectFile<target_endianness, is64Bits>
1452 ::getRelocationOffset(DataRefImpl Rel,
1453 uint64_t &Result) const {
1455 const Elf_Shdr *sec = getSection(Rel.w.b);
1456 switch (sec->sh_type) {
1458 report_fatal_error("Invalid section type in Rel!");
1459 case ELF::SHT_REL : {
1460 offset = getRel(Rel)->r_offset;
1463 case ELF::SHT_RELA : {
1464 offset = getRela(Rel)->r_offset;
1469 Result = offset - sec->sh_addr;
1470 return object_error::success;
1473 template<support::endianness target_endianness, bool is64Bits>
1474 error_code ELFObjectFile<target_endianness, is64Bits>
1475 ::getRelocationType(DataRefImpl Rel,
1476 uint64_t &Result) const {
1477 const Elf_Shdr *sec = getSection(Rel.w.b);
1478 switch (sec->sh_type) {
1480 report_fatal_error("Invalid section type in Rel!");
1481 case ELF::SHT_REL : {
1482 Result = getRel(Rel)->getType();
1485 case ELF::SHT_RELA : {
1486 Result = getRela(Rel)->getType();
1490 return object_error::success;
1493 #define LLVM_ELF_SWITCH_RELOC_TYPE_NAME(enum) \
1494 case ELF::enum: res = #enum; break;
1496 template<support::endianness target_endianness, bool is64Bits>
1497 error_code ELFObjectFile<target_endianness, is64Bits>
1498 ::getRelocationTypeName(DataRefImpl Rel,
1499 SmallVectorImpl<char> &Result) const {
1500 const Elf_Shdr *sec = getSection(Rel.w.b);
1503 switch (sec->sh_type) {
1505 return object_error::parse_failed;
1506 case ELF::SHT_REL : {
1507 type = getRel(Rel)->getType();
1510 case ELF::SHT_RELA : {
1511 type = getRela(Rel)->getType();
1515 switch (Header->e_machine) {
1516 case ELF::EM_X86_64:
1518 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_NONE);
1519 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_64);
1520 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC32);
1521 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOT32);
1522 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PLT32);
1523 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_COPY);
1524 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GLOB_DAT);
1525 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_JUMP_SLOT);
1526 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_RELATIVE);
1527 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPCREL);
1528 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_32);
1529 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_32S);
1530 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_16);
1531 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC16);
1532 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_8);
1533 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC8);
1534 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_DTPMOD64);
1535 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_DTPOFF64);
1536 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TPOFF64);
1537 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSGD);
1538 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSLD);
1539 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_DTPOFF32);
1540 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTTPOFF);
1541 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TPOFF32);
1542 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC64);
1543 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTOFF64);
1544 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPC32);
1545 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_SIZE32);
1546 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_SIZE64);
1547 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPC32_TLSDESC);
1548 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSDESC_CALL);
1549 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSDESC);
1556 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_NONE);
1557 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_32);
1558 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PC32);
1559 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GOT32);
1560 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PLT32);
1561 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_COPY);
1562 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GLOB_DAT);
1563 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_JUMP_SLOT);
1564 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_RELATIVE);
1565 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GOTOFF);
1566 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GOTPC);
1567 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_32PLT);
1568 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_TPOFF);
1569 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_IE);
1570 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GOTIE);
1571 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LE);
1572 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD);
1573 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM);
1574 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_16);
1575 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PC16);
1576 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_8);
1577 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PC8);
1578 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_32);
1579 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_PUSH);
1580 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_CALL);
1581 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_POP);
1582 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_32);
1583 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_PUSH);
1584 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_CALL);
1585 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_POP);
1586 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDO_32);
1587 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_IE_32);
1588 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LE_32);
1589 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DTPMOD32);
1590 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DTPOFF32);
1591 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_TPOFF32);
1592 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GOTDESC);
1593 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DESC_CALL);
1594 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DESC);
1595 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_IRELATIVE);
1602 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_NONE);
1603 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PC24);
1604 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS32);
1605 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_REL32);
1606 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_PC_G0);
1607 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS16);
1608 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS12);
1609 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_ABS5);
1610 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS8);
1611 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_SBREL32);
1612 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_CALL);
1613 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_PC8);
1614 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_BREL_ADJ);
1615 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_DESC);
1616 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_SWI8);
1617 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_XPC25);
1618 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_XPC22);
1619 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_DTPMOD32);
1620 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_DTPOFF32);
1621 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_TPOFF32);
1622 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_COPY);
1623 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GLOB_DAT);
1624 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_JUMP_SLOT);
1625 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_RELATIVE);
1626 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOTOFF32);
1627 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_BASE_PREL);
1628 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOT_BREL);
1629 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PLT32);
1630 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_CALL);
1631 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_JUMP24);
1632 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP24);
1633 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_BASE_ABS);
1634 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PCREL_7_0);
1635 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PCREL_15_8);
1636 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PCREL_23_15);
1637 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_SBREL_11_0_NC);
1638 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SBREL_19_12_NC);
1639 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SBREL_27_20_CK);
1640 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TARGET1);
1641 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_SBREL31);
1642 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_V4BX);
1643 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TARGET2);
1644 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PREL31);
1645 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVW_ABS_NC);
1646 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVT_ABS);
1647 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVW_PREL_NC);
1648 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVT_PREL);
1649 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVW_ABS_NC);
1650 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVT_ABS);
1651 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVW_PREL_NC);
1652 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVT_PREL);
1653 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP19);
1654 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP6);
1655 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_ALU_PREL_11_0);
1656 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_PC12);
1657 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS32_NOI);
1658 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_REL32_NOI);
1659 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G0_NC);
1660 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G0);
1661 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G1_NC);
1662 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G1);
1663 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G2);
1664 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_PC_G1);
1665 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_PC_G2);
1666 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_PC_G0);
1667 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_PC_G1);
1668 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_PC_G2);
1669 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_PC_G0);
1670 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_PC_G1);
1671 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_PC_G2);
1672 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G0_NC);
1673 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G0);
1674 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G1_NC);
1675 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G1);
1676 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G2);
1677 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_SB_G0);
1678 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_SB_G1);
1679 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_SB_G2);
1680 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_SB_G0);
1681 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_SB_G1);
1682 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_SB_G2);
1683 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_SB_G0);
1684 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_SB_G1);
1685 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_SB_G2);
1686 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVW_BREL_NC);
1687 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVT_BREL);
1688 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVW_BREL);
1689 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVW_BREL_NC);
1690 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVT_BREL);
1691 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVW_BREL);
1692 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_GOTDESC);
1693 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_CALL);
1694 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_DESCSEQ);
1695 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_TLS_CALL);
1696 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PLT32_ABS);
1697 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOT_ABS);
1698 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOT_PREL);
1699 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOT_BREL12);
1700 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOTOFF12);
1701 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOTRELAX);
1702 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GNU_VTENTRY);
1703 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GNU_VTINHERIT);
1704 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP11);
1705 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP8);
1706 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_GD32);
1707 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LDM32);
1708 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LDO32);
1709 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_IE32);
1710 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LE32);
1711 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LDO12);
1712 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LE12);
1713 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_IE12GP);
1714 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_0);
1715 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_1);
1716 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_2);
1717 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_3);
1718 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_4);
1719 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_5);
1720 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_6);
1721 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_7);
1722 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_8);
1723 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_9);
1724 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_10);
1725 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_11);
1726 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_12);
1727 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_13);
1728 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_14);
1729 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_15);
1730 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ME_TOO);
1731 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_TLS_DESCSEQ16);
1732 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_TLS_DESCSEQ32);
1737 case ELF::EM_HEXAGON:
1739 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_NONE);
1740 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B22_PCREL);
1741 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B15_PCREL);
1742 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B7_PCREL);
1743 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_LO16);
1744 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_HI16);
1745 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_32);
1746 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_16);
1747 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_8);
1748 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GPREL16_0);
1749 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GPREL16_1);
1750 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GPREL16_2);
1751 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GPREL16_3);
1752 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_HL16);
1753 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B13_PCREL);
1754 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B9_PCREL);
1755 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B32_PCREL_X);
1756 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_32_6_X);
1757 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B22_PCREL_X);
1758 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B15_PCREL_X);
1759 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B13_PCREL_X);
1760 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B9_PCREL_X);
1761 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B7_PCREL_X);
1762 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_16_X);
1763 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_12_X);
1764 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_11_X);
1765 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_10_X);
1766 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_9_X);
1767 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_8_X);
1768 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_7_X);
1769 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_6_X);
1770 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_32_PCREL);
1771 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_COPY);
1772 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GLOB_DAT);
1773 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_JMP_SLOT);
1774 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_RELATIVE);
1775 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_PLT_B22_PCREL);
1776 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_LO16);
1777 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_HI16);
1778 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_32);
1779 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_LO16);
1780 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_HI16);
1781 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_32);
1782 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_16);
1783 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPMOD_32);
1784 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_LO16);
1785 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_HI16);
1786 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_32);
1787 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_16);
1788 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_PLT_B22_PCREL);
1789 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_LO16);
1790 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_HI16);
1791 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_32);
1792 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_16);
1793 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_LO16);
1794 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_HI16);
1795 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_32);
1796 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_LO16);
1797 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_HI16);
1798 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_32);
1799 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_16);
1800 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_LO16);
1801 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_HI16);
1802 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_32);
1803 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_16);
1804 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_6_PCREL_X);
1805 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_32_6_X);
1806 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_16_X);
1807 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_11_X);
1808 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_32_6_X);
1809 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_16_X);
1810 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_11_X);
1811 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_32_6_X);
1812 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_16_X);
1813 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_11_X);
1814 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_32_6_X);
1815 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_16_X);
1816 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_11_X);
1817 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_32_6_X);
1818 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_16_X);
1819 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_32_6_X);
1820 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_16_X);
1821 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_11_X);
1822 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_32_6_X);
1823 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_16_X);
1824 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_11_X);
1832 Result.append(res.begin(), res.end());
1833 return object_error::success;
1836 #undef LLVM_ELF_SWITCH_RELOC_TYPE_NAME
1838 template<support::endianness target_endianness, bool is64Bits>
1839 error_code ELFObjectFile<target_endianness, is64Bits>
1840 ::getRelocationAdditionalInfo(DataRefImpl Rel,
1841 int64_t &Result) const {
1842 const Elf_Shdr *sec = getSection(Rel.w.b);
1843 switch (sec->sh_type) {
1845 report_fatal_error("Invalid section type in Rel!");
1846 case ELF::SHT_REL : {
1848 return object_error::success;
1850 case ELF::SHT_RELA : {
1851 Result = getRela(Rel)->r_addend;
1852 return object_error::success;
1857 template<support::endianness target_endianness, bool is64Bits>
1858 error_code ELFObjectFile<target_endianness, is64Bits>
1859 ::getRelocationValueString(DataRefImpl Rel,
1860 SmallVectorImpl<char> &Result) const {
1861 const Elf_Shdr *sec = getSection(Rel.w.b);
1865 uint16_t symbol_index = 0;
1866 switch (sec->sh_type) {
1868 return object_error::parse_failed;
1869 case ELF::SHT_REL: {
1870 type = getRel(Rel)->getType();
1871 symbol_index = getRel(Rel)->getSymbol();
1872 // TODO: Read implicit addend from section data.
1875 case ELF::SHT_RELA: {
1876 type = getRela(Rel)->getType();
1877 symbol_index = getRela(Rel)->getSymbol();
1878 addend = getRela(Rel)->r_addend;
1882 const Elf_Sym *symb = getEntry<Elf_Sym>(sec->sh_link, symbol_index);
1884 if (error_code ec = getSymbolName(getSection(sec->sh_link), symb, symname))
1886 switch (Header->e_machine) {
1887 case ELF::EM_X86_64:
1889 case ELF::R_X86_64_PC8:
1890 case ELF::R_X86_64_PC16:
1891 case ELF::R_X86_64_PC32: {
1893 raw_string_ostream fmt(fmtbuf);
1894 fmt << symname << (addend < 0 ? "" : "+") << addend << "-P";
1896 Result.append(fmtbuf.begin(), fmtbuf.end());
1899 case ELF::R_X86_64_8:
1900 case ELF::R_X86_64_16:
1901 case ELF::R_X86_64_32:
1902 case ELF::R_X86_64_32S:
1903 case ELF::R_X86_64_64: {
1905 raw_string_ostream fmt(fmtbuf);
1906 fmt << symname << (addend < 0 ? "" : "+") << addend;
1908 Result.append(fmtbuf.begin(), fmtbuf.end());
1916 case ELF::EM_HEXAGON:
1923 Result.append(res.begin(), res.end());
1924 return object_error::success;
1927 // Verify that the last byte in the string table in a null.
1928 template<support::endianness target_endianness, bool is64Bits>
1929 void ELFObjectFile<target_endianness, is64Bits>
1930 ::VerifyStrTab(const Elf_Shdr *sh) const {
1931 const char *strtab = (const char*)base() + sh->sh_offset;
1932 if (strtab[sh->sh_size - 1] != 0)
1933 // FIXME: Proper error handling.
1934 report_fatal_error("String table must end with a null terminator!");
1937 template<support::endianness target_endianness, bool is64Bits>
1938 ELFObjectFile<target_endianness, is64Bits>::ELFObjectFile(MemoryBuffer *Object
1940 : ObjectFile(getELFType(target_endianness == support::little, is64Bits),
1942 , isDyldELFObject(false)
1943 , SectionHeaderTable(0)
1944 , dot_shstrtab_sec(0)
1947 , dot_dynamic_sec(0)
1948 , dot_gnu_version_sec(0)
1949 , dot_gnu_version_r_sec(0)
1950 , dot_gnu_version_d_sec(0)
1954 const uint64_t FileSize = Data->getBufferSize();
1956 if (sizeof(Elf_Ehdr) > FileSize)
1957 // FIXME: Proper error handling.
1958 report_fatal_error("File too short!");
1960 Header = reinterpret_cast<const Elf_Ehdr *>(base());
1962 if (Header->e_shoff == 0)
1965 const uint64_t SectionTableOffset = Header->e_shoff;
1967 if (SectionTableOffset + sizeof(Elf_Shdr) > FileSize)
1968 // FIXME: Proper error handling.
1969 report_fatal_error("Section header table goes past end of file!");
1971 // The getNumSections() call below depends on SectionHeaderTable being set.
1972 SectionHeaderTable =
1973 reinterpret_cast<const Elf_Shdr *>(base() + SectionTableOffset);
1974 const uint64_t SectionTableSize = getNumSections() * Header->e_shentsize;
1976 if (SectionTableOffset + SectionTableSize > FileSize)
1977 // FIXME: Proper error handling.
1978 report_fatal_error("Section table goes past end of file!");
1980 // To find the symbol tables we walk the section table to find SHT_SYMTAB.
1981 const Elf_Shdr* SymbolTableSectionHeaderIndex = 0;
1982 const Elf_Shdr* sh = SectionHeaderTable;
1984 // Reserve SymbolTableSections[0] for .dynsym
1985 SymbolTableSections.push_back(NULL);
1987 for (uint64_t i = 0, e = getNumSections(); i != e; ++i) {
1988 switch (sh->sh_type) {
1989 case ELF::SHT_SYMTAB_SHNDX: {
1990 if (SymbolTableSectionHeaderIndex)
1991 // FIXME: Proper error handling.
1992 report_fatal_error("More than one .symtab_shndx!");
1993 SymbolTableSectionHeaderIndex = sh;
1996 case ELF::SHT_SYMTAB: {
1997 SymbolTableSectionsIndexMap[i] = SymbolTableSections.size();
1998 SymbolTableSections.push_back(sh);
2001 case ELF::SHT_DYNSYM: {
2002 if (SymbolTableSections[0] != NULL)
2003 // FIXME: Proper error handling.
2004 report_fatal_error("More than one .dynsym!");
2005 SymbolTableSectionsIndexMap[i] = 0;
2006 SymbolTableSections[0] = sh;
2010 case ELF::SHT_RELA: {
2011 SectionRelocMap[getSection(sh->sh_info)].push_back(i);
2014 case ELF::SHT_DYNAMIC: {
2015 if (dot_dynamic_sec != NULL)
2016 // FIXME: Proper error handling.
2017 report_fatal_error("More than one .dynamic!");
2018 dot_dynamic_sec = sh;
2021 case ELF::SHT_GNU_versym: {
2022 if (dot_gnu_version_sec != NULL)
2023 // FIXME: Proper error handling.
2024 report_fatal_error("More than one .gnu.version section!");
2025 dot_gnu_version_sec = sh;
2028 case ELF::SHT_GNU_verdef: {
2029 if (dot_gnu_version_d_sec != NULL)
2030 // FIXME: Proper error handling.
2031 report_fatal_error("More than one .gnu.version_d section!");
2032 dot_gnu_version_d_sec = sh;
2035 case ELF::SHT_GNU_verneed: {
2036 if (dot_gnu_version_r_sec != NULL)
2037 // FIXME: Proper error handling.
2038 report_fatal_error("More than one .gnu.version_r section!");
2039 dot_gnu_version_r_sec = sh;
2046 // Sort section relocation lists by index.
2047 for (typename RelocMap_t::iterator i = SectionRelocMap.begin(),
2048 e = SectionRelocMap.end(); i != e; ++i) {
2049 std::sort(i->second.begin(), i->second.end());
2052 // Get string table sections.
2053 dot_shstrtab_sec = getSection(getStringTableIndex());
2054 if (dot_shstrtab_sec) {
2055 // Verify that the last byte in the string table in a null.
2056 VerifyStrTab(dot_shstrtab_sec);
2059 // Merge this into the above loop.
2060 for (const char *i = reinterpret_cast<const char *>(SectionHeaderTable),
2061 *e = i + getNumSections() * Header->e_shentsize;
2062 i != e; i += Header->e_shentsize) {
2063 const Elf_Shdr *sh = reinterpret_cast<const Elf_Shdr*>(i);
2064 if (sh->sh_type == ELF::SHT_STRTAB) {
2065 StringRef SectionName(getString(dot_shstrtab_sec, sh->sh_name));
2066 if (SectionName == ".strtab") {
2067 if (dot_strtab_sec != 0)
2068 // FIXME: Proper error handling.
2069 report_fatal_error("Already found section named .strtab!");
2070 dot_strtab_sec = sh;
2071 VerifyStrTab(dot_strtab_sec);
2072 } else if (SectionName == ".dynstr") {
2073 if (dot_dynstr_sec != 0)
2074 // FIXME: Proper error handling.
2075 report_fatal_error("Already found section named .dynstr!");
2076 dot_dynstr_sec = sh;
2077 VerifyStrTab(dot_dynstr_sec);
2082 // Build symbol name side-mapping if there is one.
2083 if (SymbolTableSectionHeaderIndex) {
2084 const Elf_Word *ShndxTable = reinterpret_cast<const Elf_Word*>(base() +
2085 SymbolTableSectionHeaderIndex->sh_offset);
2087 for (symbol_iterator si = begin_symbols(),
2088 se = end_symbols(); si != se; si.increment(ec)) {
2090 report_fatal_error("Fewer extended symbol table entries than symbols!");
2091 if (*ShndxTable != ELF::SHN_UNDEF)
2092 ExtendedSymbolTable[getSymbol(si->getRawDataRefImpl())] = *ShndxTable;
2098 // Get the symbol table index in the symtab section given a symbol
2099 template<support::endianness target_endianness, bool is64Bits>
2100 uint64_t ELFObjectFile<target_endianness, is64Bits>
2101 ::getSymbolIndex(const Elf_Sym *Sym) const {
2102 assert(SymbolTableSections.size() == 1 && "Only one symbol table supported!");
2103 const Elf_Shdr *SymTab = *SymbolTableSections.begin();
2104 uintptr_t SymLoc = uintptr_t(Sym);
2105 uintptr_t SymTabLoc = uintptr_t(base() + SymTab->sh_offset);
2106 assert(SymLoc > SymTabLoc && "Symbol not in symbol table!");
2107 uint64_t SymOffset = SymLoc - SymTabLoc;
2108 assert(SymOffset % SymTab->sh_entsize == 0 &&
2109 "Symbol not multiple of symbol size!");
2110 return SymOffset / SymTab->sh_entsize;
2113 template<support::endianness target_endianness, bool is64Bits>
2114 symbol_iterator ELFObjectFile<target_endianness, is64Bits>
2115 ::begin_symbols() const {
2116 DataRefImpl SymbolData;
2117 if (SymbolTableSections.size() <= 1) {
2118 SymbolData.d.a = std::numeric_limits<uint32_t>::max();
2119 SymbolData.d.b = std::numeric_limits<uint32_t>::max();
2121 SymbolData.d.a = 1; // The 0th symbol in ELF is fake.
2122 SymbolData.d.b = 1; // The 0th table is .dynsym
2124 return symbol_iterator(SymbolRef(SymbolData, this));
2127 template<support::endianness target_endianness, bool is64Bits>
2128 symbol_iterator ELFObjectFile<target_endianness, is64Bits>
2129 ::end_symbols() const {
2130 DataRefImpl SymbolData;
2131 SymbolData.d.a = std::numeric_limits<uint32_t>::max();
2132 SymbolData.d.b = std::numeric_limits<uint32_t>::max();
2133 return symbol_iterator(SymbolRef(SymbolData, this));
2136 template<support::endianness target_endianness, bool is64Bits>
2137 symbol_iterator ELFObjectFile<target_endianness, is64Bits>
2138 ::begin_dynamic_symbols() const {
2139 DataRefImpl SymbolData;
2140 if (SymbolTableSections[0] == NULL) {
2141 SymbolData.d.a = std::numeric_limits<uint32_t>::max();
2142 SymbolData.d.b = std::numeric_limits<uint32_t>::max();
2144 SymbolData.d.a = 1; // The 0th symbol in ELF is fake.
2145 SymbolData.d.b = 0; // The 0th table is .dynsym
2147 return symbol_iterator(SymbolRef(SymbolData, this));
2150 template<support::endianness target_endianness, bool is64Bits>
2151 symbol_iterator ELFObjectFile<target_endianness, is64Bits>
2152 ::end_dynamic_symbols() const {
2153 DataRefImpl SymbolData;
2154 SymbolData.d.a = std::numeric_limits<uint32_t>::max();
2155 SymbolData.d.b = std::numeric_limits<uint32_t>::max();
2156 return symbol_iterator(SymbolRef(SymbolData, this));
2159 template<support::endianness target_endianness, bool is64Bits>
2160 section_iterator ELFObjectFile<target_endianness, is64Bits>
2161 ::begin_sections() const {
2163 ret.p = reinterpret_cast<intptr_t>(base() + Header->e_shoff);
2164 return section_iterator(SectionRef(ret, this));
2167 template<support::endianness target_endianness, bool is64Bits>
2168 section_iterator ELFObjectFile<target_endianness, is64Bits>
2169 ::end_sections() const {
2171 ret.p = reinterpret_cast<intptr_t>(base()
2173 + (Header->e_shentsize*getNumSections()));
2174 return section_iterator(SectionRef(ret, this));
2177 template<support::endianness target_endianness, bool is64Bits>
2178 typename ELFObjectFile<target_endianness, is64Bits>::dyn_iterator
2179 ELFObjectFile<target_endianness, is64Bits>::begin_dynamic_table() const {
2180 DataRefImpl DynData;
2181 if (dot_dynamic_sec == NULL || dot_dynamic_sec->sh_size == 0) {
2182 DynData.d.a = std::numeric_limits<uint32_t>::max();
2186 return dyn_iterator(DynRef(DynData, this));
2189 template<support::endianness target_endianness, bool is64Bits>
2190 typename ELFObjectFile<target_endianness, is64Bits>::dyn_iterator
2191 ELFObjectFile<target_endianness, is64Bits>
2192 ::end_dynamic_table() const {
2193 DataRefImpl DynData;
2194 DynData.d.a = std::numeric_limits<uint32_t>::max();
2195 return dyn_iterator(DynRef(DynData, this));
2198 template<support::endianness target_endianness, bool is64Bits>
2199 error_code ELFObjectFile<target_endianness, is64Bits>
2200 ::getDynNext(DataRefImpl DynData,
2201 DynRef &Result) const {
2204 // Check to see if we are at the end of .dynamic
2205 if (DynData.d.a >= dot_dynamic_sec->getEntityCount()) {
2206 // We are at the end. Return the terminator.
2207 DynData.d.a = std::numeric_limits<uint32_t>::max();
2210 Result = DynRef(DynData, this);
2211 return object_error::success;
2214 template<support::endianness target_endianness, bool is64Bits>
2216 ELFObjectFile<target_endianness, is64Bits>::getLoadName() const {
2218 // Find the DT_SONAME entry
2219 dyn_iterator it = begin_dynamic_table();
2220 dyn_iterator ie = end_dynamic_table();
2223 if (it->getTag() == ELF::DT_SONAME)
2227 report_fatal_error("dynamic table iteration failed");
2230 if (dot_dynstr_sec == NULL)
2231 report_fatal_error("Dynamic string table is missing");
2232 dt_soname = getString(dot_dynstr_sec, it->getVal());
2240 template<support::endianness target_endianness, bool is64Bits>
2241 library_iterator ELFObjectFile<target_endianness, is64Bits>
2242 ::begin_libraries_needed() const {
2243 // Find the first DT_NEEDED entry
2244 dyn_iterator i = begin_dynamic_table();
2245 dyn_iterator e = end_dynamic_table();
2248 if (i->getTag() == ELF::DT_NEEDED)
2252 report_fatal_error("dynamic table iteration failed");
2254 // Use the same DataRefImpl format as DynRef.
2255 return library_iterator(LibraryRef(i->getRawDataRefImpl(), this));
2258 template<support::endianness target_endianness, bool is64Bits>
2259 error_code ELFObjectFile<target_endianness, is64Bits>
2260 ::getLibraryNext(DataRefImpl Data,
2261 LibraryRef &Result) const {
2262 // Use the same DataRefImpl format as DynRef.
2263 dyn_iterator i = dyn_iterator(DynRef(Data, this));
2264 dyn_iterator e = end_dynamic_table();
2266 // Skip the current dynamic table entry.
2270 // TODO: proper error handling
2272 report_fatal_error("dynamic table iteration failed");
2275 // Find the next DT_NEEDED entry.
2277 if (i->getTag() == ELF::DT_NEEDED)
2281 report_fatal_error("dynamic table iteration failed");
2283 Result = LibraryRef(i->getRawDataRefImpl(), this);
2284 return object_error::success;
2287 template<support::endianness target_endianness, bool is64Bits>
2288 error_code ELFObjectFile<target_endianness, is64Bits>
2289 ::getLibraryPath(DataRefImpl Data, StringRef &Res) const {
2290 dyn_iterator i = dyn_iterator(DynRef(Data, this));
2291 if (i == end_dynamic_table())
2292 report_fatal_error("getLibraryPath() called on iterator end");
2294 if (i->getTag() != ELF::DT_NEEDED)
2295 report_fatal_error("Invalid library_iterator");
2297 // This uses .dynstr to lookup the name of the DT_NEEDED entry.
2298 // THis works as long as DT_STRTAB == .dynstr. This is true most of
2299 // the time, but the specification allows exceptions.
2300 // TODO: This should really use DT_STRTAB instead. Doing this requires
2301 // reading the program headers.
2302 if (dot_dynstr_sec == NULL)
2303 report_fatal_error("Dynamic string table is missing");
2304 Res = getString(dot_dynstr_sec, i->getVal());
2305 return object_error::success;
2308 template<support::endianness target_endianness, bool is64Bits>
2309 library_iterator ELFObjectFile<target_endianness, is64Bits>
2310 ::end_libraries_needed() const {
2311 dyn_iterator e = end_dynamic_table();
2312 // Use the same DataRefImpl format as DynRef.
2313 return library_iterator(LibraryRef(e->getRawDataRefImpl(), this));
2316 template<support::endianness target_endianness, bool is64Bits>
2317 uint8_t ELFObjectFile<target_endianness, is64Bits>::getBytesInAddress() const {
2318 return is64Bits ? 8 : 4;
2321 template<support::endianness target_endianness, bool is64Bits>
2322 StringRef ELFObjectFile<target_endianness, is64Bits>
2323 ::getFileFormatName() const {
2324 switch(Header->e_ident[ELF::EI_CLASS]) {
2325 case ELF::ELFCLASS32:
2326 switch(Header->e_machine) {
2328 return "ELF32-i386";
2329 case ELF::EM_X86_64:
2330 return "ELF32-x86-64";
2333 case ELF::EM_HEXAGON:
2334 return "ELF32-hexagon";
2336 return "ELF32-unknown";
2338 case ELF::ELFCLASS64:
2339 switch(Header->e_machine) {
2341 return "ELF64-i386";
2342 case ELF::EM_X86_64:
2343 return "ELF64-x86-64";
2345 return "ELF64-ppc64";
2347 return "ELF64-unknown";
2350 // FIXME: Proper error handling.
2351 report_fatal_error("Invalid ELFCLASS!");
2355 template<support::endianness target_endianness, bool is64Bits>
2356 unsigned ELFObjectFile<target_endianness, is64Bits>::getArch() const {
2357 switch(Header->e_machine) {
2360 case ELF::EM_X86_64:
2361 return Triple::x86_64;
2364 case ELF::EM_HEXAGON:
2365 return Triple::hexagon;
2367 return (target_endianness == support::little) ?
2368 Triple::mipsel : Triple::mips;
2370 return Triple::ppc64;
2372 return Triple::UnknownArch;
2376 template<support::endianness target_endianness, bool is64Bits>
2377 uint64_t ELFObjectFile<target_endianness, is64Bits>::getNumSections() const {
2378 assert(Header && "Header not initialized!");
2379 if (Header->e_shnum == ELF::SHN_UNDEF) {
2380 assert(SectionHeaderTable && "SectionHeaderTable not initialized!");
2381 return SectionHeaderTable->sh_size;
2383 return Header->e_shnum;
2386 template<support::endianness target_endianness, bool is64Bits>
2388 ELFObjectFile<target_endianness, is64Bits>::getStringTableIndex() const {
2389 if (Header->e_shnum == ELF::SHN_UNDEF) {
2390 if (Header->e_shstrndx == ELF::SHN_HIRESERVE)
2391 return SectionHeaderTable->sh_link;
2392 if (Header->e_shstrndx >= getNumSections())
2395 return Header->e_shstrndx;
2399 template<support::endianness target_endianness, bool is64Bits>
2400 template<typename T>
2402 ELFObjectFile<target_endianness, is64Bits>::getEntry(uint16_t Section,
2403 uint32_t Entry) const {
2404 return getEntry<T>(getSection(Section), Entry);
2407 template<support::endianness target_endianness, bool is64Bits>
2408 template<typename T>
2410 ELFObjectFile<target_endianness, is64Bits>::getEntry(const Elf_Shdr * Section,
2411 uint32_t Entry) const {
2412 return reinterpret_cast<const T *>(
2414 + Section->sh_offset
2415 + (Entry * Section->sh_entsize));
2418 template<support::endianness target_endianness, bool is64Bits>
2419 const typename ELFObjectFile<target_endianness, is64Bits>::Elf_Sym *
2420 ELFObjectFile<target_endianness, is64Bits>::getSymbol(DataRefImpl Symb) const {
2421 return getEntry<Elf_Sym>(SymbolTableSections[Symb.d.b], Symb.d.a);
2424 template<support::endianness target_endianness, bool is64Bits>
2425 const typename ELFObjectFile<target_endianness, is64Bits>::Elf_Dyn *
2426 ELFObjectFile<target_endianness, is64Bits>::getDyn(DataRefImpl DynData) const {
2427 return getEntry<Elf_Dyn>(dot_dynamic_sec, DynData.d.a);
2430 template<support::endianness target_endianness, bool is64Bits>
2431 const typename ELFObjectFile<target_endianness, is64Bits>::Elf_Rel *
2432 ELFObjectFile<target_endianness, is64Bits>::getRel(DataRefImpl Rel) const {
2433 return getEntry<Elf_Rel>(Rel.w.b, Rel.w.c);
2436 template<support::endianness target_endianness, bool is64Bits>
2437 const typename ELFObjectFile<target_endianness, is64Bits>::Elf_Rela *
2438 ELFObjectFile<target_endianness, is64Bits>::getRela(DataRefImpl Rela) const {
2439 return getEntry<Elf_Rela>(Rela.w.b, Rela.w.c);
2442 template<support::endianness target_endianness, bool is64Bits>
2443 const typename ELFObjectFile<target_endianness, is64Bits>::Elf_Shdr *
2444 ELFObjectFile<target_endianness, is64Bits>::getSection(DataRefImpl Symb) const {
2445 const Elf_Shdr *sec = getSection(Symb.d.b);
2446 if (sec->sh_type != ELF::SHT_SYMTAB || sec->sh_type != ELF::SHT_DYNSYM)
2447 // FIXME: Proper error handling.
2448 report_fatal_error("Invalid symbol table section!");
2452 template<support::endianness target_endianness, bool is64Bits>
2453 const typename ELFObjectFile<target_endianness, is64Bits>::Elf_Shdr *
2454 ELFObjectFile<target_endianness, is64Bits>::getSection(uint32_t index) const {
2457 if (!SectionHeaderTable || index >= getNumSections())
2458 // FIXME: Proper error handling.
2459 report_fatal_error("Invalid section index!");
2461 return reinterpret_cast<const Elf_Shdr *>(
2462 reinterpret_cast<const char *>(SectionHeaderTable)
2463 + (index * Header->e_shentsize));
2466 template<support::endianness target_endianness, bool is64Bits>
2467 const char *ELFObjectFile<target_endianness, is64Bits>
2468 ::getString(uint32_t section,
2469 ELF::Elf32_Word offset) const {
2470 return getString(getSection(section), offset);
2473 template<support::endianness target_endianness, bool is64Bits>
2474 const char *ELFObjectFile<target_endianness, is64Bits>
2475 ::getString(const Elf_Shdr *section,
2476 ELF::Elf32_Word offset) const {
2477 assert(section && section->sh_type == ELF::SHT_STRTAB && "Invalid section!");
2478 if (offset >= section->sh_size)
2479 // FIXME: Proper error handling.
2480 report_fatal_error("Symbol name offset outside of string table!");
2481 return (const char *)base() + section->sh_offset + offset;
2484 template<support::endianness target_endianness, bool is64Bits>
2485 error_code ELFObjectFile<target_endianness, is64Bits>
2486 ::getSymbolName(const Elf_Shdr *section,
2487 const Elf_Sym *symb,
2488 StringRef &Result) const {
2489 if (symb->st_name == 0) {
2490 const Elf_Shdr *section = getSection(symb);
2494 Result = getString(dot_shstrtab_sec, section->sh_name);
2495 return object_error::success;
2498 if (section == SymbolTableSections[0]) {
2499 // Symbol is in .dynsym, use .dynstr string table
2500 Result = getString(dot_dynstr_sec, symb->st_name);
2502 // Use the default symbol table name section.
2503 Result = getString(dot_strtab_sec, symb->st_name);
2505 return object_error::success;
2508 template<support::endianness target_endianness, bool is64Bits>
2509 error_code ELFObjectFile<target_endianness, is64Bits>
2510 ::getSectionName(const Elf_Shdr *section,
2511 StringRef &Result) const {
2512 Result = StringRef(getString(dot_shstrtab_sec, section->sh_name));
2513 return object_error::success;
2516 template<support::endianness target_endianness, bool is64Bits>
2517 error_code ELFObjectFile<target_endianness, is64Bits>
2518 ::getSymbolVersion(const Elf_Shdr *section,
2519 const Elf_Sym *symb,
2521 bool &IsDefault) const {
2522 // Handle non-dynamic symbols.
2523 if (section != SymbolTableSections[0]) {
2524 // Non-dynamic symbols can have versions in their names
2525 // A name of the form 'foo@V1' indicates version 'V1', non-default.
2526 // A name of the form 'foo@@V2' indicates version 'V2', default version.
2528 error_code ec = getSymbolName(section, symb, Name);
2529 if (ec != object_error::success)
2531 size_t atpos = Name.find('@');
2532 if (atpos == StringRef::npos) {
2535 return object_error::success;
2538 if (atpos < Name.size() && Name[atpos] == '@') {
2544 Version = Name.substr(atpos);
2545 return object_error::success;
2548 // This is a dynamic symbol. Look in the GNU symbol version table.
2549 if (dot_gnu_version_sec == NULL) {
2550 // No version table.
2553 return object_error::success;
2556 // Determine the position in the symbol table of this entry.
2557 const char *sec_start = (const char*)base() + section->sh_offset;
2558 size_t entry_index = ((const char*)symb - sec_start)/section->sh_entsize;
2560 // Get the corresponding version index entry
2561 const Elf_Versym *vs = getEntry<Elf_Versym>(dot_gnu_version_sec, entry_index);
2562 size_t version_index = vs->vs_index & ELF::VERSYM_VERSION;
2564 // Special markers for unversioned symbols.
2565 if (version_index == ELF::VER_NDX_LOCAL ||
2566 version_index == ELF::VER_NDX_GLOBAL) {
2569 return object_error::success;
2572 // Lookup this symbol in the version table
2574 if (version_index >= VersionMap.size() || VersionMap[version_index].isNull())
2575 report_fatal_error("Symbol has version index without corresponding "
2576 "define or reference entry");
2577 const VersionMapEntry &entry = VersionMap[version_index];
2579 // Get the version name string
2581 if (entry.isVerdef()) {
2582 // The first Verdaux entry holds the name.
2583 name_offset = entry.getVerdef()->getAux()->vda_name;
2585 name_offset = entry.getVernaux()->vna_name;
2587 Version = getString(dot_dynstr_sec, name_offset);
2590 if (entry.isVerdef()) {
2591 IsDefault = !(vs->vs_index & ELF::VERSYM_HIDDEN);
2596 return object_error::success;
2599 template<support::endianness target_endianness, bool is64Bits>
2600 inline DynRefImpl<target_endianness, is64Bits>
2601 ::DynRefImpl(DataRefImpl DynP, const OwningType *Owner)
2603 , OwningObject(Owner) {}
2605 template<support::endianness target_endianness, bool is64Bits>
2606 inline bool DynRefImpl<target_endianness, is64Bits>
2607 ::operator==(const DynRefImpl &Other) const {
2608 return DynPimpl == Other.DynPimpl;
2611 template<support::endianness target_endianness, bool is64Bits>
2612 inline bool DynRefImpl<target_endianness, is64Bits>
2613 ::operator <(const DynRefImpl &Other) const {
2614 return DynPimpl < Other.DynPimpl;
2617 template<support::endianness target_endianness, bool is64Bits>
2618 inline error_code DynRefImpl<target_endianness, is64Bits>
2619 ::getNext(DynRefImpl &Result) const {
2620 return OwningObject->getDynNext(DynPimpl, Result);
2623 template<support::endianness target_endianness, bool is64Bits>
2624 inline int64_t DynRefImpl<target_endianness, is64Bits>
2626 return OwningObject->getDyn(DynPimpl)->d_tag;
2629 template<support::endianness target_endianness, bool is64Bits>
2630 inline uint64_t DynRefImpl<target_endianness, is64Bits>
2632 return OwningObject->getDyn(DynPimpl)->d_un.d_val;
2635 template<support::endianness target_endianness, bool is64Bits>
2636 inline uint64_t DynRefImpl<target_endianness, is64Bits>
2638 return OwningObject->getDyn(DynPimpl)->d_un.d_ptr;
2641 template<support::endianness target_endianness, bool is64Bits>
2642 inline DataRefImpl DynRefImpl<target_endianness, is64Bits>
2643 ::getRawDataRefImpl() const {
2647 /// This is a generic interface for retrieving GNU symbol version
2648 /// information from an ELFObjectFile.
2649 static inline error_code GetELFSymbolVersion(const ObjectFile *Obj,
2650 const SymbolRef &Sym,
2653 // Little-endian 32-bit
2654 if (const ELFObjectFile<support::little, false> *ELFObj =
2655 dyn_cast<ELFObjectFile<support::little, false> >(Obj))
2656 return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
2658 // Big-endian 32-bit
2659 if (const ELFObjectFile<support::big, false> *ELFObj =
2660 dyn_cast<ELFObjectFile<support::big, false> >(Obj))
2661 return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
2663 // Little-endian 64-bit
2664 if (const ELFObjectFile<support::little, true> *ELFObj =
2665 dyn_cast<ELFObjectFile<support::little, true> >(Obj))
2666 return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
2668 // Big-endian 64-bit
2669 if (const ELFObjectFile<support::big, true> *ELFObj =
2670 dyn_cast<ELFObjectFile<support::big, true> >(Obj))
2671 return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
2673 llvm_unreachable("Object passed to GetELFSymbolVersion() is not ELF");