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/SmallVector.h"
18 #include "llvm/ADT/StringSwitch.h"
19 #include "llvm/ADT/Triple.h"
20 #include "llvm/ADT/DenseMap.h"
21 #include "llvm/ADT/PointerIntPair.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;
613 virtual error_code getSymbolNext(DataRefImpl Symb, SymbolRef &Res) const;
614 virtual error_code getSymbolName(DataRefImpl Symb, StringRef &Res) const;
615 virtual error_code getSymbolFileOffset(DataRefImpl Symb, uint64_t &Res) const;
616 virtual error_code getSymbolAddress(DataRefImpl Symb, uint64_t &Res) const;
617 virtual error_code getSymbolSize(DataRefImpl Symb, uint64_t &Res) const;
618 virtual error_code getSymbolNMTypeChar(DataRefImpl Symb, char &Res) const;
619 virtual error_code getSymbolFlags(DataRefImpl Symb, uint32_t &Res) const;
620 virtual error_code getSymbolType(DataRefImpl Symb, SymbolRef::Type &Res) const;
621 virtual error_code getSymbolSection(DataRefImpl Symb,
622 section_iterator &Res) const;
624 friend class DynRefImpl<target_endianness, is64Bits>;
625 virtual error_code getDynNext(DataRefImpl DynData, DynRef &Result) const;
627 virtual error_code getLibraryNext(DataRefImpl Data, LibraryRef &Result) const;
628 virtual error_code getLibraryPath(DataRefImpl Data, StringRef &Res) const;
630 virtual error_code getSectionNext(DataRefImpl Sec, SectionRef &Res) const;
631 virtual error_code getSectionName(DataRefImpl Sec, StringRef &Res) const;
632 virtual error_code getSectionAddress(DataRefImpl Sec, uint64_t &Res) const;
633 virtual error_code getSectionSize(DataRefImpl Sec, uint64_t &Res) const;
634 virtual error_code getSectionContents(DataRefImpl Sec, StringRef &Res) const;
635 virtual error_code getSectionAlignment(DataRefImpl Sec, uint64_t &Res) const;
636 virtual error_code isSectionText(DataRefImpl Sec, bool &Res) const;
637 virtual error_code isSectionData(DataRefImpl Sec, bool &Res) const;
638 virtual error_code isSectionBSS(DataRefImpl Sec, bool &Res) const;
639 virtual error_code isSectionRequiredForExecution(DataRefImpl Sec,
641 virtual error_code isSectionVirtual(DataRefImpl Sec, bool &Res) const;
642 virtual error_code isSectionZeroInit(DataRefImpl Sec, bool &Res) const;
643 virtual error_code isSectionReadOnlyData(DataRefImpl Sec, bool &Res) const;
644 virtual error_code sectionContainsSymbol(DataRefImpl Sec, DataRefImpl Symb,
646 virtual relocation_iterator getSectionRelBegin(DataRefImpl Sec) const;
647 virtual relocation_iterator getSectionRelEnd(DataRefImpl Sec) const;
649 virtual error_code getRelocationNext(DataRefImpl Rel,
650 RelocationRef &Res) const;
651 virtual error_code getRelocationAddress(DataRefImpl Rel,
652 uint64_t &Res) const;
653 virtual error_code getRelocationOffset(DataRefImpl Rel,
654 uint64_t &Res) const;
655 virtual error_code getRelocationSymbol(DataRefImpl Rel,
656 SymbolRef &Res) const;
657 virtual error_code getRelocationType(DataRefImpl Rel,
658 uint64_t &Res) const;
659 virtual error_code getRelocationTypeName(DataRefImpl Rel,
660 SmallVectorImpl<char> &Result) const;
661 virtual error_code getRelocationAdditionalInfo(DataRefImpl Rel,
663 virtual error_code getRelocationValueString(DataRefImpl Rel,
664 SmallVectorImpl<char> &Result) const;
667 ELFObjectFile(MemoryBuffer *Object, error_code &ec);
668 virtual symbol_iterator begin_symbols() const;
669 virtual symbol_iterator end_symbols() const;
671 virtual symbol_iterator begin_dynamic_symbols() const;
672 virtual symbol_iterator end_dynamic_symbols() const;
674 virtual section_iterator begin_sections() const;
675 virtual section_iterator end_sections() const;
677 virtual library_iterator begin_libraries_needed() const;
678 virtual library_iterator end_libraries_needed() const;
680 virtual dyn_iterator begin_dynamic_table() const;
681 virtual dyn_iterator end_dynamic_table() const;
683 typedef ELFRelocationIterator<Elf_Rela> Elf_Rela_Iter;
684 typedef ELFRelocationIterator<Elf_Rel> Elf_Rel_Iter;
686 virtual Elf_Rela_Iter beginELFRela(const Elf_Shdr *sec) const {
687 return Elf_Rela_Iter(sec, (const char *)(base() + sec->sh_offset));
690 virtual Elf_Rela_Iter endELFRela(const Elf_Shdr *sec) const {
691 return Elf_Rela_Iter(sec, (const char *)
692 (base() + sec->sh_offset + sec->sh_size));
695 virtual Elf_Rel_Iter beginELFRel(const Elf_Shdr *sec) const {
696 return Elf_Rel_Iter(sec, (const char *)(base() + sec->sh_offset));
699 virtual Elf_Rel_Iter endELFRel(const Elf_Shdr *sec) const {
700 return Elf_Rel_Iter(sec, (const char *)
701 (base() + sec->sh_offset + sec->sh_size));
704 virtual uint8_t getBytesInAddress() const;
705 virtual StringRef getFileFormatName() const;
706 virtual StringRef getObjectType() const { return "ELF"; }
707 virtual unsigned getArch() const;
708 virtual StringRef getLoadName() const;
709 virtual error_code getSectionContents(const Elf_Shdr *sec,
710 StringRef &Res) const;
712 uint64_t getNumSections() const;
713 uint64_t getStringTableIndex() const;
714 ELF::Elf64_Word getSymbolTableIndex(const Elf_Sym *symb) const;
715 const Elf_Shdr *getSection(const Elf_Sym *symb) const;
716 const Elf_Shdr *getElfSection(section_iterator &It) const;
717 const Elf_Sym *getElfSymbol(symbol_iterator &It) const;
718 const Elf_Sym *getElfSymbol(uint32_t index) const;
720 // Methods for type inquiry through isa, cast, and dyn_cast
721 bool isDyldType() const { return isDyldELFObject; }
722 static inline bool classof(const Binary *v) {
723 return v->getType() == getELFType(target_endianness == support::little,
728 // Iterate through the version definitions, and place each Elf_Verdef
729 // in the VersionMap according to its index.
730 template<support::endianness target_endianness, bool is64Bits>
731 void ELFObjectFile<target_endianness, is64Bits>::
732 LoadVersionDefs(const Elf_Shdr *sec) const {
733 unsigned vd_size = sec->sh_size; // Size of section in bytes
734 unsigned vd_count = sec->sh_info; // Number of Verdef entries
735 const char *sec_start = (const char*)base() + sec->sh_offset;
736 const char *sec_end = sec_start + vd_size;
737 // The first Verdef entry is at the start of the section.
738 const char *p = sec_start;
739 for (unsigned i = 0; i < vd_count; i++) {
740 if (p + sizeof(Elf_Verdef) > sec_end)
741 report_fatal_error("Section ended unexpectedly while scanning "
742 "version definitions.");
743 const Elf_Verdef *vd = reinterpret_cast<const Elf_Verdef *>(p);
744 if (vd->vd_version != ELF::VER_DEF_CURRENT)
745 report_fatal_error("Unexpected verdef version");
746 size_t index = vd->vd_ndx & ELF::VERSYM_VERSION;
747 if (index >= VersionMap.size())
748 VersionMap.resize(index+1);
749 VersionMap[index] = VersionMapEntry(vd);
754 // Iterate through the versions needed section, and place each Elf_Vernaux
755 // in the VersionMap according to its index.
756 template<support::endianness target_endianness, bool is64Bits>
757 void ELFObjectFile<target_endianness, is64Bits>::
758 LoadVersionNeeds(const Elf_Shdr *sec) const {
759 unsigned vn_size = sec->sh_size; // Size of section in bytes
760 unsigned vn_count = sec->sh_info; // Number of Verneed entries
761 const char *sec_start = (const char*)base() + sec->sh_offset;
762 const char *sec_end = sec_start + vn_size;
763 // The first Verneed entry is at the start of the section.
764 const char *p = sec_start;
765 for (unsigned i = 0; i < vn_count; i++) {
766 if (p + sizeof(Elf_Verneed) > sec_end)
767 report_fatal_error("Section ended unexpectedly while scanning "
768 "version needed records.");
769 const Elf_Verneed *vn = reinterpret_cast<const Elf_Verneed *>(p);
770 if (vn->vn_version != ELF::VER_NEED_CURRENT)
771 report_fatal_error("Unexpected verneed version");
772 // Iterate through the Vernaux entries
773 const char *paux = p + vn->vn_aux;
774 for (unsigned j = 0; j < vn->vn_cnt; j++) {
775 if (paux + sizeof(Elf_Vernaux) > sec_end)
776 report_fatal_error("Section ended unexpected while scanning auxiliary "
777 "version needed records.");
778 const Elf_Vernaux *vna = reinterpret_cast<const Elf_Vernaux *>(paux);
779 size_t index = vna->vna_other & ELF::VERSYM_VERSION;
780 if (index >= VersionMap.size())
781 VersionMap.resize(index+1);
782 VersionMap[index] = VersionMapEntry(vna);
783 paux += vna->vna_next;
789 template<support::endianness target_endianness, bool is64Bits>
790 void ELFObjectFile<target_endianness, is64Bits>::LoadVersionMap() const {
791 // If there is no dynamic symtab or version table, there is nothing to do.
792 if (SymbolTableSections[0] == NULL || dot_gnu_version_sec == NULL)
795 // Has the VersionMap already been loaded?
796 if (VersionMap.size() > 0)
799 // The first two version indexes are reserved.
800 // Index 0 is LOCAL, index 1 is GLOBAL.
801 VersionMap.push_back(VersionMapEntry());
802 VersionMap.push_back(VersionMapEntry());
804 if (dot_gnu_version_d_sec)
805 LoadVersionDefs(dot_gnu_version_d_sec);
807 if (dot_gnu_version_r_sec)
808 LoadVersionNeeds(dot_gnu_version_r_sec);
811 template<support::endianness target_endianness, bool is64Bits>
812 void ELFObjectFile<target_endianness, is64Bits>
813 ::validateSymbol(DataRefImpl Symb) const {
814 const Elf_Sym *symb = getSymbol(Symb);
815 const Elf_Shdr *SymbolTableSection = SymbolTableSections[Symb.d.b];
816 // FIXME: We really need to do proper error handling in the case of an invalid
817 // input file. Because we don't use exceptions, I think we'll just pass
818 // an error object around.
820 && SymbolTableSection
821 && symb >= (const Elf_Sym*)(base()
822 + SymbolTableSection->sh_offset)
823 && symb < (const Elf_Sym*)(base()
824 + SymbolTableSection->sh_offset
825 + SymbolTableSection->sh_size)))
826 // FIXME: Proper error handling.
827 report_fatal_error("Symb must point to a valid symbol!");
830 template<support::endianness target_endianness, bool is64Bits>
831 error_code ELFObjectFile<target_endianness, is64Bits>
832 ::getSymbolNext(DataRefImpl Symb,
833 SymbolRef &Result) const {
834 validateSymbol(Symb);
835 const Elf_Shdr *SymbolTableSection = SymbolTableSections[Symb.d.b];
838 // Check to see if we are at the end of this symbol table.
839 if (Symb.d.a >= SymbolTableSection->getEntityCount()) {
840 // We are at the end. If there are other symbol tables, jump to them.
841 // If the symbol table is .dynsym, we are iterating dynamic symbols,
842 // and there is only one table of these.
845 Symb.d.a = 1; // The 0th symbol in ELF is fake.
847 // Otherwise return the terminator.
848 if (Symb.d.b == 0 || Symb.d.b >= SymbolTableSections.size()) {
849 Symb.d.a = std::numeric_limits<uint32_t>::max();
850 Symb.d.b = std::numeric_limits<uint32_t>::max();
854 Result = SymbolRef(Symb, this);
855 return object_error::success;
858 template<support::endianness target_endianness, bool is64Bits>
859 error_code ELFObjectFile<target_endianness, is64Bits>
860 ::getSymbolName(DataRefImpl Symb,
861 StringRef &Result) const {
862 validateSymbol(Symb);
863 const Elf_Sym *symb = getSymbol(Symb);
864 return getSymbolName(SymbolTableSections[Symb.d.b], symb, Result);
867 template<support::endianness target_endianness, bool is64Bits>
868 error_code ELFObjectFile<target_endianness, is64Bits>
869 ::getSymbolVersion(SymbolRef SymRef,
871 bool &IsDefault) const {
872 DataRefImpl Symb = SymRef.getRawDataRefImpl();
873 validateSymbol(Symb);
874 const Elf_Sym *symb = getSymbol(Symb);
875 return getSymbolVersion(SymbolTableSections[Symb.d.b], symb,
879 template<support::endianness target_endianness, bool is64Bits>
880 ELF::Elf64_Word ELFObjectFile<target_endianness, is64Bits>
881 ::getSymbolTableIndex(const Elf_Sym *symb) const {
882 if (symb->st_shndx == ELF::SHN_XINDEX)
883 return ExtendedSymbolTable.lookup(symb);
884 return symb->st_shndx;
887 template<support::endianness target_endianness, bool is64Bits>
888 const typename ELFObjectFile<target_endianness, is64Bits>::Elf_Shdr *
889 ELFObjectFile<target_endianness, is64Bits>
890 ::getSection(const Elf_Sym *symb) const {
891 if (symb->st_shndx == ELF::SHN_XINDEX)
892 return getSection(ExtendedSymbolTable.lookup(symb));
893 if (symb->st_shndx >= ELF::SHN_LORESERVE)
895 return getSection(symb->st_shndx);
898 template<support::endianness target_endianness, bool is64Bits>
899 const typename ELFObjectFile<target_endianness, is64Bits>::Elf_Shdr *
900 ELFObjectFile<target_endianness, is64Bits>
901 ::getElfSection(section_iterator &It) const {
902 llvm::object::DataRefImpl ShdrRef = It->getRawDataRefImpl();
903 return reinterpret_cast<const Elf_Shdr *>(ShdrRef.p);
906 template<support::endianness target_endianness, bool is64Bits>
907 const typename ELFObjectFile<target_endianness, is64Bits>::Elf_Sym *
908 ELFObjectFile<target_endianness, is64Bits>
909 ::getElfSymbol(symbol_iterator &It) const {
910 return getSymbol(It->getRawDataRefImpl());
913 template<support::endianness target_endianness, bool is64Bits>
914 const typename ELFObjectFile<target_endianness, is64Bits>::Elf_Sym *
915 ELFObjectFile<target_endianness, is64Bits>
916 ::getElfSymbol(uint32_t index) const {
917 DataRefImpl SymbolData;
918 SymbolData.d.a = index;
920 return getSymbol(SymbolData);
923 template<support::endianness target_endianness, bool is64Bits>
924 error_code ELFObjectFile<target_endianness, is64Bits>
925 ::getSymbolFileOffset(DataRefImpl Symb,
926 uint64_t &Result) const {
927 validateSymbol(Symb);
928 const Elf_Sym *symb = getSymbol(Symb);
929 const Elf_Shdr *Section;
930 switch (getSymbolTableIndex(symb)) {
931 case ELF::SHN_COMMON:
932 // Unintialized symbols have no offset in the object file
934 Result = UnknownAddressOrSize;
935 return object_error::success;
937 Result = symb->st_value;
938 return object_error::success;
939 default: Section = getSection(symb);
942 switch (symb->getType()) {
943 case ELF::STT_SECTION:
944 Result = Section ? Section->sh_addr : UnknownAddressOrSize;
945 return object_error::success;
947 case ELF::STT_OBJECT:
948 case ELF::STT_NOTYPE:
949 Result = symb->st_value +
950 (Section ? Section->sh_offset : 0);
951 return object_error::success;
953 Result = UnknownAddressOrSize;
954 return object_error::success;
958 template<support::endianness target_endianness, bool is64Bits>
959 error_code ELFObjectFile<target_endianness, is64Bits>
960 ::getSymbolAddress(DataRefImpl Symb,
961 uint64_t &Result) const {
962 validateSymbol(Symb);
963 const Elf_Sym *symb = getSymbol(Symb);
964 const Elf_Shdr *Section;
965 switch (getSymbolTableIndex(symb)) {
966 case ELF::SHN_COMMON:
968 Result = UnknownAddressOrSize;
969 return object_error::success;
971 Result = symb->st_value;
972 return object_error::success;
973 default: Section = getSection(symb);
976 switch (symb->getType()) {
977 case ELF::STT_SECTION:
978 Result = Section ? Section->sh_addr : UnknownAddressOrSize;
979 return object_error::success;
981 case ELF::STT_OBJECT:
982 case ELF::STT_NOTYPE:
984 switch(Header->e_type) {
987 IsRelocatable = false;
990 IsRelocatable = true;
992 Result = symb->st_value;
993 if (IsRelocatable && Section != 0)
994 Result += Section->sh_addr;
995 return object_error::success;
997 Result = UnknownAddressOrSize;
998 return object_error::success;
1002 template<support::endianness target_endianness, bool is64Bits>
1003 error_code ELFObjectFile<target_endianness, is64Bits>
1004 ::getSymbolSize(DataRefImpl Symb,
1005 uint64_t &Result) const {
1006 validateSymbol(Symb);
1007 const Elf_Sym *symb = getSymbol(Symb);
1008 if (symb->st_size == 0)
1009 Result = UnknownAddressOrSize;
1010 Result = symb->st_size;
1011 return object_error::success;
1014 template<support::endianness target_endianness, bool is64Bits>
1015 error_code ELFObjectFile<target_endianness, is64Bits>
1016 ::getSymbolNMTypeChar(DataRefImpl Symb,
1017 char &Result) const {
1018 validateSymbol(Symb);
1019 const Elf_Sym *symb = getSymbol(Symb);
1020 const Elf_Shdr *Section = getSection(symb);
1025 switch (Section->sh_type) {
1026 case ELF::SHT_PROGBITS:
1027 case ELF::SHT_DYNAMIC:
1028 switch (Section->sh_flags) {
1029 case (ELF::SHF_ALLOC | ELF::SHF_EXECINSTR):
1031 case (ELF::SHF_ALLOC | ELF::SHF_WRITE):
1033 case ELF::SHF_ALLOC:
1034 case (ELF::SHF_ALLOC | ELF::SHF_MERGE):
1035 case (ELF::SHF_ALLOC | ELF::SHF_MERGE | ELF::SHF_STRINGS):
1039 case ELF::SHT_NOBITS: ret = 'b';
1043 switch (getSymbolTableIndex(symb)) {
1044 case ELF::SHN_UNDEF:
1048 case ELF::SHN_ABS: ret = 'a'; break;
1049 case ELF::SHN_COMMON: ret = 'c'; break;
1052 switch (symb->getBinding()) {
1053 case ELF::STB_GLOBAL: ret = ::toupper(ret); break;
1055 if (getSymbolTableIndex(symb) == ELF::SHN_UNDEF)
1058 if (symb->getType() == ELF::STT_OBJECT)
1064 if (ret == '?' && symb->getType() == ELF::STT_SECTION) {
1066 if (error_code ec = getSymbolName(Symb, name))
1068 Result = StringSwitch<char>(name)
1069 .StartsWith(".debug", 'N')
1070 .StartsWith(".note", 'n')
1072 return object_error::success;
1076 return object_error::success;
1079 template<support::endianness target_endianness, bool is64Bits>
1080 error_code ELFObjectFile<target_endianness, is64Bits>
1081 ::getSymbolType(DataRefImpl Symb,
1082 SymbolRef::Type &Result) const {
1083 validateSymbol(Symb);
1084 const Elf_Sym *symb = getSymbol(Symb);
1086 switch (symb->getType()) {
1087 case ELF::STT_NOTYPE:
1088 Result = SymbolRef::ST_Unknown;
1090 case ELF::STT_SECTION:
1091 Result = SymbolRef::ST_Debug;
1094 Result = SymbolRef::ST_File;
1097 Result = SymbolRef::ST_Function;
1099 case ELF::STT_OBJECT:
1100 case ELF::STT_COMMON:
1102 Result = SymbolRef::ST_Data;
1105 Result = SymbolRef::ST_Other;
1108 return object_error::success;
1111 template<support::endianness target_endianness, bool is64Bits>
1112 error_code ELFObjectFile<target_endianness, is64Bits>
1113 ::getSymbolFlags(DataRefImpl Symb,
1114 uint32_t &Result) const {
1115 validateSymbol(Symb);
1116 const Elf_Sym *symb = getSymbol(Symb);
1118 Result = SymbolRef::SF_None;
1120 if (symb->getBinding() != ELF::STB_LOCAL)
1121 Result |= SymbolRef::SF_Global;
1123 if (symb->getBinding() == ELF::STB_WEAK)
1124 Result |= SymbolRef::SF_Weak;
1126 if (symb->st_shndx == ELF::SHN_ABS)
1127 Result |= SymbolRef::SF_Absolute;
1129 if (symb->getType() == ELF::STT_FILE ||
1130 symb->getType() == ELF::STT_SECTION)
1131 Result |= SymbolRef::SF_FormatSpecific;
1133 if (getSymbolTableIndex(symb) == ELF::SHN_UNDEF)
1134 Result |= SymbolRef::SF_Undefined;
1136 if (symb->getType() == ELF::STT_COMMON ||
1137 getSymbolTableIndex(symb) == ELF::SHN_COMMON)
1138 Result |= SymbolRef::SF_Common;
1140 if (symb->getType() == ELF::STT_TLS)
1141 Result |= SymbolRef::SF_ThreadLocal;
1143 return object_error::success;
1146 template<support::endianness target_endianness, bool is64Bits>
1147 error_code ELFObjectFile<target_endianness, is64Bits>
1148 ::getSymbolSection(DataRefImpl Symb,
1149 section_iterator &Res) const {
1150 validateSymbol(Symb);
1151 const Elf_Sym *symb = getSymbol(Symb);
1152 const Elf_Shdr *sec = getSection(symb);
1154 Res = end_sections();
1157 Sec.p = reinterpret_cast<intptr_t>(sec);
1158 Res = section_iterator(SectionRef(Sec, this));
1160 return object_error::success;
1163 template<support::endianness target_endianness, bool is64Bits>
1164 error_code ELFObjectFile<target_endianness, is64Bits>
1165 ::getSectionNext(DataRefImpl Sec, SectionRef &Result) const {
1166 const uint8_t *sec = reinterpret_cast<const uint8_t *>(Sec.p);
1167 sec += Header->e_shentsize;
1168 Sec.p = reinterpret_cast<intptr_t>(sec);
1169 Result = SectionRef(Sec, this);
1170 return object_error::success;
1173 template<support::endianness target_endianness, bool is64Bits>
1174 error_code ELFObjectFile<target_endianness, is64Bits>
1175 ::getSectionName(DataRefImpl Sec,
1176 StringRef &Result) const {
1177 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1178 Result = StringRef(getString(dot_shstrtab_sec, sec->sh_name));
1179 return object_error::success;
1182 template<support::endianness target_endianness, bool is64Bits>
1183 error_code ELFObjectFile<target_endianness, is64Bits>
1184 ::getSectionAddress(DataRefImpl Sec,
1185 uint64_t &Result) const {
1186 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1187 Result = sec->sh_addr;
1188 return object_error::success;
1191 template<support::endianness target_endianness, bool is64Bits>
1192 error_code ELFObjectFile<target_endianness, is64Bits>
1193 ::getSectionSize(DataRefImpl Sec,
1194 uint64_t &Result) const {
1195 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1196 Result = sec->sh_size;
1197 return object_error::success;
1200 template<support::endianness target_endianness, bool is64Bits>
1201 error_code ELFObjectFile<target_endianness, is64Bits>
1202 ::getSectionContents(DataRefImpl Sec,
1203 StringRef &Result) const {
1204 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1205 const char *start = (const char*)base() + sec->sh_offset;
1206 Result = StringRef(start, sec->sh_size);
1207 return object_error::success;
1210 template<support::endianness target_endianness, bool is64Bits>
1211 error_code ELFObjectFile<target_endianness, is64Bits>
1212 ::getSectionContents(const Elf_Shdr *Sec,
1213 StringRef &Result) const {
1214 const char *start = (const char*)base() + Sec->sh_offset;
1215 Result = StringRef(start, Sec->sh_size);
1216 return object_error::success;
1219 template<support::endianness target_endianness, bool is64Bits>
1220 error_code ELFObjectFile<target_endianness, is64Bits>
1221 ::getSectionAlignment(DataRefImpl Sec,
1222 uint64_t &Result) const {
1223 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1224 Result = sec->sh_addralign;
1225 return object_error::success;
1228 template<support::endianness target_endianness, bool is64Bits>
1229 error_code ELFObjectFile<target_endianness, is64Bits>
1230 ::isSectionText(DataRefImpl Sec,
1231 bool &Result) const {
1232 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1233 if (sec->sh_flags & ELF::SHF_EXECINSTR)
1237 return object_error::success;
1240 template<support::endianness target_endianness, bool is64Bits>
1241 error_code ELFObjectFile<target_endianness, is64Bits>
1242 ::isSectionData(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_ALLOC | ELF::SHF_WRITE)
1246 && sec->sh_type == ELF::SHT_PROGBITS)
1250 return object_error::success;
1253 template<support::endianness target_endianness, bool is64Bits>
1254 error_code ELFObjectFile<target_endianness, is64Bits>
1255 ::isSectionBSS(DataRefImpl Sec,
1256 bool &Result) const {
1257 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1258 if (sec->sh_flags & (ELF::SHF_ALLOC | ELF::SHF_WRITE)
1259 && sec->sh_type == ELF::SHT_NOBITS)
1263 return object_error::success;
1266 template<support::endianness target_endianness, bool is64Bits>
1267 error_code ELFObjectFile<target_endianness, is64Bits>
1268 ::isSectionRequiredForExecution(DataRefImpl Sec,
1269 bool &Result) const {
1270 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1271 if (sec->sh_flags & ELF::SHF_ALLOC)
1275 return object_error::success;
1278 template<support::endianness target_endianness, bool is64Bits>
1279 error_code ELFObjectFile<target_endianness, is64Bits>
1280 ::isSectionVirtual(DataRefImpl Sec,
1281 bool &Result) const {
1282 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1283 if (sec->sh_type == ELF::SHT_NOBITS)
1287 return object_error::success;
1290 template<support::endianness target_endianness, bool is64Bits>
1291 error_code ELFObjectFile<target_endianness, is64Bits>
1292 ::isSectionZeroInit(DataRefImpl Sec,
1293 bool &Result) const {
1294 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1295 // For ELF, all zero-init sections are virtual (that is, they occupy no space
1296 // in the object image) and vice versa.
1297 if (sec->sh_flags & ELF::SHT_NOBITS)
1301 return object_error::success;
1304 template<support::endianness target_endianness, bool is64Bits>
1305 error_code ELFObjectFile<target_endianness, is64Bits>
1306 ::isSectionReadOnlyData(DataRefImpl Sec,
1307 bool &Result) const {
1308 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1309 if (sec->sh_flags & ELF::SHF_WRITE || sec->sh_flags & ELF::SHF_EXECINSTR)
1313 return object_error::success;
1316 template<support::endianness target_endianness, bool is64Bits>
1317 error_code ELFObjectFile<target_endianness, is64Bits>
1318 ::sectionContainsSymbol(DataRefImpl Sec,
1320 bool &Result) const {
1321 // FIXME: Unimplemented.
1323 return object_error::success;
1326 template<support::endianness target_endianness, bool is64Bits>
1327 relocation_iterator ELFObjectFile<target_endianness, is64Bits>
1328 ::getSectionRelBegin(DataRefImpl Sec) const {
1329 DataRefImpl RelData;
1330 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1331 typename RelocMap_t::const_iterator ittr = SectionRelocMap.find(sec);
1332 if (sec != 0 && ittr != SectionRelocMap.end()) {
1333 RelData.w.a = getSection(ittr->second[0])->sh_info;
1334 RelData.w.b = ittr->second[0];
1337 return relocation_iterator(RelocationRef(RelData, this));
1340 template<support::endianness target_endianness, bool is64Bits>
1341 relocation_iterator ELFObjectFile<target_endianness, is64Bits>
1342 ::getSectionRelEnd(DataRefImpl Sec) const {
1343 DataRefImpl RelData;
1344 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1345 typename RelocMap_t::const_iterator ittr = SectionRelocMap.find(sec);
1346 if (sec != 0 && ittr != SectionRelocMap.end()) {
1347 // Get the index of the last relocation section for this section.
1348 std::size_t relocsecindex = ittr->second[ittr->second.size() - 1];
1349 const Elf_Shdr *relocsec = getSection(relocsecindex);
1350 RelData.w.a = relocsec->sh_info;
1351 RelData.w.b = relocsecindex;
1352 RelData.w.c = relocsec->sh_size / relocsec->sh_entsize;
1354 return relocation_iterator(RelocationRef(RelData, this));
1358 template<support::endianness target_endianness, bool is64Bits>
1359 error_code ELFObjectFile<target_endianness, is64Bits>
1360 ::getRelocationNext(DataRefImpl Rel,
1361 RelocationRef &Result) const {
1363 const Elf_Shdr *relocsec = getSection(Rel.w.b);
1364 if (Rel.w.c >= (relocsec->sh_size / relocsec->sh_entsize)) {
1365 // We have reached the end of the relocations for this section. See if there
1366 // is another relocation section.
1367 typename RelocMap_t::mapped_type relocseclist =
1368 SectionRelocMap.lookup(getSection(Rel.w.a));
1370 // Do a binary search for the current reloc section index (which must be
1371 // present). Then get the next one.
1372 typename RelocMap_t::mapped_type::const_iterator loc =
1373 std::lower_bound(relocseclist.begin(), relocseclist.end(), Rel.w.b);
1376 // If there is no next one, don't do anything. The ++Rel.w.c above sets Rel
1377 // to the end iterator.
1378 if (loc != relocseclist.end()) {
1383 Result = RelocationRef(Rel, this);
1384 return object_error::success;
1387 template<support::endianness target_endianness, bool is64Bits>
1388 error_code ELFObjectFile<target_endianness, is64Bits>
1389 ::getRelocationSymbol(DataRefImpl Rel,
1390 SymbolRef &Result) const {
1392 const Elf_Shdr *sec = getSection(Rel.w.b);
1393 switch (sec->sh_type) {
1395 report_fatal_error("Invalid section type in Rel!");
1396 case ELF::SHT_REL : {
1397 symbolIdx = getRel(Rel)->getSymbol();
1400 case ELF::SHT_RELA : {
1401 symbolIdx = getRela(Rel)->getSymbol();
1405 DataRefImpl SymbolData;
1406 IndexMap_t::const_iterator it = SymbolTableSectionsIndexMap.find(sec->sh_link);
1407 if (it == SymbolTableSectionsIndexMap.end())
1408 report_fatal_error("Relocation symbol table not found!");
1409 SymbolData.d.a = symbolIdx;
1410 SymbolData.d.b = it->second;
1411 Result = SymbolRef(SymbolData, this);
1412 return object_error::success;
1415 template<support::endianness target_endianness, bool is64Bits>
1416 error_code ELFObjectFile<target_endianness, is64Bits>
1417 ::getRelocationAddress(DataRefImpl Rel,
1418 uint64_t &Result) const {
1420 const Elf_Shdr *sec = getSection(Rel.w.b);
1421 switch (sec->sh_type) {
1423 report_fatal_error("Invalid section type in Rel!");
1424 case ELF::SHT_REL : {
1425 offset = getRel(Rel)->r_offset;
1428 case ELF::SHT_RELA : {
1429 offset = getRela(Rel)->r_offset;
1435 return object_error::success;
1438 template<support::endianness target_endianness, bool is64Bits>
1439 error_code ELFObjectFile<target_endianness, is64Bits>
1440 ::getRelocationOffset(DataRefImpl Rel,
1441 uint64_t &Result) const {
1443 const Elf_Shdr *sec = getSection(Rel.w.b);
1444 switch (sec->sh_type) {
1446 report_fatal_error("Invalid section type in Rel!");
1447 case ELF::SHT_REL : {
1448 offset = getRel(Rel)->r_offset;
1451 case ELF::SHT_RELA : {
1452 offset = getRela(Rel)->r_offset;
1457 Result = offset - sec->sh_addr;
1458 return object_error::success;
1461 template<support::endianness target_endianness, bool is64Bits>
1462 error_code ELFObjectFile<target_endianness, is64Bits>
1463 ::getRelocationType(DataRefImpl Rel,
1464 uint64_t &Result) const {
1465 const Elf_Shdr *sec = getSection(Rel.w.b);
1466 switch (sec->sh_type) {
1468 report_fatal_error("Invalid section type in Rel!");
1469 case ELF::SHT_REL : {
1470 Result = getRel(Rel)->getType();
1473 case ELF::SHT_RELA : {
1474 Result = getRela(Rel)->getType();
1478 return object_error::success;
1481 #define LLVM_ELF_SWITCH_RELOC_TYPE_NAME(enum) \
1482 case ELF::enum: res = #enum; break;
1484 template<support::endianness target_endianness, bool is64Bits>
1485 error_code ELFObjectFile<target_endianness, is64Bits>
1486 ::getRelocationTypeName(DataRefImpl Rel,
1487 SmallVectorImpl<char> &Result) const {
1488 const Elf_Shdr *sec = getSection(Rel.w.b);
1491 switch (sec->sh_type) {
1493 return object_error::parse_failed;
1494 case ELF::SHT_REL : {
1495 type = getRel(Rel)->getType();
1498 case ELF::SHT_RELA : {
1499 type = getRela(Rel)->getType();
1503 switch (Header->e_machine) {
1504 case ELF::EM_X86_64:
1506 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_NONE);
1507 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_64);
1508 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC32);
1509 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOT32);
1510 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PLT32);
1511 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_COPY);
1512 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GLOB_DAT);
1513 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_JUMP_SLOT);
1514 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_RELATIVE);
1515 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPCREL);
1516 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_32);
1517 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_32S);
1518 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_16);
1519 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC16);
1520 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_8);
1521 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC8);
1522 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_DTPMOD64);
1523 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_DTPOFF64);
1524 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TPOFF64);
1525 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSGD);
1526 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSLD);
1527 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_DTPOFF32);
1528 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTTPOFF);
1529 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TPOFF32);
1530 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC64);
1531 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTOFF64);
1532 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPC32);
1533 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_SIZE32);
1534 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_SIZE64);
1535 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPC32_TLSDESC);
1536 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSDESC_CALL);
1537 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSDESC);
1544 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_NONE);
1545 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_32);
1546 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PC32);
1547 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GOT32);
1548 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PLT32);
1549 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_COPY);
1550 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GLOB_DAT);
1551 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_JUMP_SLOT);
1552 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_RELATIVE);
1553 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GOTOFF);
1554 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GOTPC);
1555 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_32PLT);
1556 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_TPOFF);
1557 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_IE);
1558 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GOTIE);
1559 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LE);
1560 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD);
1561 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM);
1562 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_16);
1563 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PC16);
1564 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_8);
1565 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PC8);
1566 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_32);
1567 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_PUSH);
1568 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_CALL);
1569 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_POP);
1570 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_32);
1571 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_PUSH);
1572 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_CALL);
1573 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_POP);
1574 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDO_32);
1575 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_IE_32);
1576 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LE_32);
1577 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DTPMOD32);
1578 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DTPOFF32);
1579 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_TPOFF32);
1580 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GOTDESC);
1581 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DESC_CALL);
1582 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DESC);
1583 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_IRELATIVE);
1590 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_NONE);
1591 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PC24);
1592 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS32);
1593 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_REL32);
1594 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_PC_G0);
1595 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS16);
1596 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS12);
1597 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_ABS5);
1598 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS8);
1599 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_SBREL32);
1600 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_CALL);
1601 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_PC8);
1602 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_BREL_ADJ);
1603 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_DESC);
1604 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_SWI8);
1605 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_XPC25);
1606 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_XPC22);
1607 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_DTPMOD32);
1608 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_DTPOFF32);
1609 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_TPOFF32);
1610 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_COPY);
1611 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GLOB_DAT);
1612 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_JUMP_SLOT);
1613 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_RELATIVE);
1614 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOTOFF32);
1615 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_BASE_PREL);
1616 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOT_BREL);
1617 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PLT32);
1618 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_CALL);
1619 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_JUMP24);
1620 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP24);
1621 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_BASE_ABS);
1622 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PCREL_7_0);
1623 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PCREL_15_8);
1624 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PCREL_23_15);
1625 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_SBREL_11_0_NC);
1626 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SBREL_19_12_NC);
1627 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SBREL_27_20_CK);
1628 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TARGET1);
1629 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_SBREL31);
1630 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_V4BX);
1631 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TARGET2);
1632 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PREL31);
1633 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVW_ABS_NC);
1634 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVT_ABS);
1635 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVW_PREL_NC);
1636 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVT_PREL);
1637 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVW_ABS_NC);
1638 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVT_ABS);
1639 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVW_PREL_NC);
1640 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVT_PREL);
1641 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP19);
1642 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP6);
1643 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_ALU_PREL_11_0);
1644 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_PC12);
1645 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS32_NOI);
1646 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_REL32_NOI);
1647 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G0_NC);
1648 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G0);
1649 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G1_NC);
1650 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G1);
1651 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G2);
1652 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_PC_G1);
1653 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_PC_G2);
1654 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_PC_G0);
1655 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_PC_G1);
1656 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_PC_G2);
1657 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_PC_G0);
1658 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_PC_G1);
1659 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_PC_G2);
1660 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G0_NC);
1661 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G0);
1662 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G1_NC);
1663 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G1);
1664 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G2);
1665 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_SB_G0);
1666 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_SB_G1);
1667 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_SB_G2);
1668 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_SB_G0);
1669 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_SB_G1);
1670 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_SB_G2);
1671 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_SB_G0);
1672 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_SB_G1);
1673 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_SB_G2);
1674 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVW_BREL_NC);
1675 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVT_BREL);
1676 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVW_BREL);
1677 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVW_BREL_NC);
1678 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVT_BREL);
1679 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVW_BREL);
1680 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_GOTDESC);
1681 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_CALL);
1682 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_DESCSEQ);
1683 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_TLS_CALL);
1684 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PLT32_ABS);
1685 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOT_ABS);
1686 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOT_PREL);
1687 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOT_BREL12);
1688 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOTOFF12);
1689 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOTRELAX);
1690 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GNU_VTENTRY);
1691 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GNU_VTINHERIT);
1692 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP11);
1693 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP8);
1694 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_GD32);
1695 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LDM32);
1696 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LDO32);
1697 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_IE32);
1698 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LE32);
1699 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LDO12);
1700 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LE12);
1701 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_IE12GP);
1702 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_0);
1703 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_1);
1704 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_2);
1705 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_3);
1706 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_4);
1707 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_5);
1708 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_6);
1709 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_7);
1710 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_8);
1711 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_9);
1712 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_10);
1713 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_11);
1714 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_12);
1715 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_13);
1716 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_14);
1717 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_15);
1718 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ME_TOO);
1719 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_TLS_DESCSEQ16);
1720 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_TLS_DESCSEQ32);
1725 case ELF::EM_HEXAGON:
1727 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_NONE);
1728 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B22_PCREL);
1729 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B15_PCREL);
1730 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B7_PCREL);
1731 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_LO16);
1732 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_HI16);
1733 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_32);
1734 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_16);
1735 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_8);
1736 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GPREL16_0);
1737 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GPREL16_1);
1738 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GPREL16_2);
1739 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GPREL16_3);
1740 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_HL16);
1741 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B13_PCREL);
1742 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B9_PCREL);
1743 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B32_PCREL_X);
1744 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_32_6_X);
1745 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B22_PCREL_X);
1746 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B15_PCREL_X);
1747 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B13_PCREL_X);
1748 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B9_PCREL_X);
1749 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B7_PCREL_X);
1750 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_16_X);
1751 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_12_X);
1752 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_11_X);
1753 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_10_X);
1754 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_9_X);
1755 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_8_X);
1756 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_7_X);
1757 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_6_X);
1758 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_32_PCREL);
1759 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_COPY);
1760 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GLOB_DAT);
1761 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_JMP_SLOT);
1762 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_RELATIVE);
1763 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_PLT_B22_PCREL);
1764 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_LO16);
1765 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_HI16);
1766 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_32);
1767 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_LO16);
1768 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_HI16);
1769 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_32);
1770 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_16);
1771 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPMOD_32);
1772 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_LO16);
1773 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_HI16);
1774 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_32);
1775 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_16);
1776 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_PLT_B22_PCREL);
1777 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_LO16);
1778 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_HI16);
1779 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_32);
1780 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_16);
1781 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_LO16);
1782 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_HI16);
1783 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_32);
1784 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_LO16);
1785 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_HI16);
1786 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_32);
1787 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_16);
1788 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_LO16);
1789 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_HI16);
1790 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_32);
1791 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_16);
1792 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_6_PCREL_X);
1793 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_32_6_X);
1794 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_16_X);
1795 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_11_X);
1796 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_32_6_X);
1797 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_16_X);
1798 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_11_X);
1799 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_32_6_X);
1800 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_16_X);
1801 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_11_X);
1802 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_32_6_X);
1803 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_16_X);
1804 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_11_X);
1805 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_32_6_X);
1806 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_16_X);
1807 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_32_6_X);
1808 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_16_X);
1809 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_11_X);
1810 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_32_6_X);
1811 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_16_X);
1812 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_11_X);
1820 Result.append(res.begin(), res.end());
1821 return object_error::success;
1824 #undef LLVM_ELF_SWITCH_RELOC_TYPE_NAME
1826 template<support::endianness target_endianness, bool is64Bits>
1827 error_code ELFObjectFile<target_endianness, is64Bits>
1828 ::getRelocationAdditionalInfo(DataRefImpl Rel,
1829 int64_t &Result) const {
1830 const Elf_Shdr *sec = getSection(Rel.w.b);
1831 switch (sec->sh_type) {
1833 report_fatal_error("Invalid section type in Rel!");
1834 case ELF::SHT_REL : {
1836 return object_error::success;
1838 case ELF::SHT_RELA : {
1839 Result = getRela(Rel)->r_addend;
1840 return object_error::success;
1845 template<support::endianness target_endianness, bool is64Bits>
1846 error_code ELFObjectFile<target_endianness, is64Bits>
1847 ::getRelocationValueString(DataRefImpl Rel,
1848 SmallVectorImpl<char> &Result) const {
1849 const Elf_Shdr *sec = getSection(Rel.w.b);
1853 uint16_t symbol_index = 0;
1854 switch (sec->sh_type) {
1856 return object_error::parse_failed;
1857 case ELF::SHT_REL: {
1858 type = getRel(Rel)->getType();
1859 symbol_index = getRel(Rel)->getSymbol();
1860 // TODO: Read implicit addend from section data.
1863 case ELF::SHT_RELA: {
1864 type = getRela(Rel)->getType();
1865 symbol_index = getRela(Rel)->getSymbol();
1866 addend = getRela(Rel)->r_addend;
1870 const Elf_Sym *symb = getEntry<Elf_Sym>(sec->sh_link, symbol_index);
1872 if (error_code ec = getSymbolName(getSection(sec->sh_link), symb, symname))
1874 switch (Header->e_machine) {
1875 case ELF::EM_X86_64:
1877 case ELF::R_X86_64_PC8:
1878 case ELF::R_X86_64_PC16:
1879 case ELF::R_X86_64_PC32: {
1881 raw_string_ostream fmt(fmtbuf);
1882 fmt << symname << (addend < 0 ? "" : "+") << addend << "-P";
1884 Result.append(fmtbuf.begin(), fmtbuf.end());
1887 case ELF::R_X86_64_8:
1888 case ELF::R_X86_64_16:
1889 case ELF::R_X86_64_32:
1890 case ELF::R_X86_64_32S:
1891 case ELF::R_X86_64_64: {
1893 raw_string_ostream fmt(fmtbuf);
1894 fmt << symname << (addend < 0 ? "" : "+") << addend;
1896 Result.append(fmtbuf.begin(), fmtbuf.end());
1904 case ELF::EM_HEXAGON:
1911 Result.append(res.begin(), res.end());
1912 return object_error::success;
1915 // Verify that the last byte in the string table in a null.
1916 template<support::endianness target_endianness, bool is64Bits>
1917 void ELFObjectFile<target_endianness, is64Bits>
1918 ::VerifyStrTab(const Elf_Shdr *sh) const {
1919 const char *strtab = (const char*)base() + sh->sh_offset;
1920 if (strtab[sh->sh_size - 1] != 0)
1921 // FIXME: Proper error handling.
1922 report_fatal_error("String table must end with a null terminator!");
1925 template<support::endianness target_endianness, bool is64Bits>
1926 ELFObjectFile<target_endianness, is64Bits>::ELFObjectFile(MemoryBuffer *Object
1928 : ObjectFile(getELFType(target_endianness == support::little, is64Bits),
1930 , isDyldELFObject(false)
1931 , SectionHeaderTable(0)
1932 , dot_shstrtab_sec(0)
1935 , dot_dynamic_sec(0)
1936 , dot_gnu_version_sec(0)
1937 , dot_gnu_version_r_sec(0)
1938 , dot_gnu_version_d_sec(0)
1942 const uint64_t FileSize = Data->getBufferSize();
1944 if (sizeof(Elf_Ehdr) > FileSize)
1945 // FIXME: Proper error handling.
1946 report_fatal_error("File too short!");
1948 Header = reinterpret_cast<const Elf_Ehdr *>(base());
1950 if (Header->e_shoff == 0)
1953 const uint64_t SectionTableOffset = Header->e_shoff;
1955 if (SectionTableOffset + sizeof(Elf_Shdr) > FileSize)
1956 // FIXME: Proper error handling.
1957 report_fatal_error("Section header table goes past end of file!");
1959 // The getNumSections() call below depends on SectionHeaderTable being set.
1960 SectionHeaderTable =
1961 reinterpret_cast<const Elf_Shdr *>(base() + SectionTableOffset);
1962 const uint64_t SectionTableSize = getNumSections() * Header->e_shentsize;
1964 if (SectionTableOffset + SectionTableSize > FileSize)
1965 // FIXME: Proper error handling.
1966 report_fatal_error("Section table goes past end of file!");
1968 // To find the symbol tables we walk the section table to find SHT_SYMTAB.
1969 const Elf_Shdr* SymbolTableSectionHeaderIndex = 0;
1970 const Elf_Shdr* sh = SectionHeaderTable;
1972 // Reserve SymbolTableSections[0] for .dynsym
1973 SymbolTableSections.push_back(NULL);
1975 for (uint64_t i = 0, e = getNumSections(); i != e; ++i) {
1976 switch (sh->sh_type) {
1977 case ELF::SHT_SYMTAB_SHNDX: {
1978 if (SymbolTableSectionHeaderIndex)
1979 // FIXME: Proper error handling.
1980 report_fatal_error("More than one .symtab_shndx!");
1981 SymbolTableSectionHeaderIndex = sh;
1984 case ELF::SHT_SYMTAB: {
1985 SymbolTableSectionsIndexMap[i] = SymbolTableSections.size();
1986 SymbolTableSections.push_back(sh);
1989 case ELF::SHT_DYNSYM: {
1990 if (SymbolTableSections[0] != NULL)
1991 // FIXME: Proper error handling.
1992 report_fatal_error("More than one .dynsym!");
1993 SymbolTableSectionsIndexMap[i] = 0;
1994 SymbolTableSections[0] = sh;
1998 case ELF::SHT_RELA: {
1999 SectionRelocMap[getSection(sh->sh_info)].push_back(i);
2002 case ELF::SHT_DYNAMIC: {
2003 if (dot_dynamic_sec != NULL)
2004 // FIXME: Proper error handling.
2005 report_fatal_error("More than one .dynamic!");
2006 dot_dynamic_sec = sh;
2009 case ELF::SHT_GNU_versym: {
2010 if (dot_gnu_version_sec != NULL)
2011 // FIXME: Proper error handling.
2012 report_fatal_error("More than one .gnu.version section!");
2013 dot_gnu_version_sec = sh;
2016 case ELF::SHT_GNU_verdef: {
2017 if (dot_gnu_version_d_sec != NULL)
2018 // FIXME: Proper error handling.
2019 report_fatal_error("More than one .gnu.version_d section!");
2020 dot_gnu_version_d_sec = sh;
2023 case ELF::SHT_GNU_verneed: {
2024 if (dot_gnu_version_r_sec != NULL)
2025 // FIXME: Proper error handling.
2026 report_fatal_error("More than one .gnu.version_r section!");
2027 dot_gnu_version_r_sec = sh;
2034 // Sort section relocation lists by index.
2035 for (typename RelocMap_t::iterator i = SectionRelocMap.begin(),
2036 e = SectionRelocMap.end(); i != e; ++i) {
2037 std::sort(i->second.begin(), i->second.end());
2040 // Get string table sections.
2041 dot_shstrtab_sec = getSection(getStringTableIndex());
2042 if (dot_shstrtab_sec) {
2043 // Verify that the last byte in the string table in a null.
2044 VerifyStrTab(dot_shstrtab_sec);
2047 // Merge this into the above loop.
2048 for (const char *i = reinterpret_cast<const char *>(SectionHeaderTable),
2049 *e = i + getNumSections() * Header->e_shentsize;
2050 i != e; i += Header->e_shentsize) {
2051 const Elf_Shdr *sh = reinterpret_cast<const Elf_Shdr*>(i);
2052 if (sh->sh_type == ELF::SHT_STRTAB) {
2053 StringRef SectionName(getString(dot_shstrtab_sec, sh->sh_name));
2054 if (SectionName == ".strtab") {
2055 if (dot_strtab_sec != 0)
2056 // FIXME: Proper error handling.
2057 report_fatal_error("Already found section named .strtab!");
2058 dot_strtab_sec = sh;
2059 VerifyStrTab(dot_strtab_sec);
2060 } else if (SectionName == ".dynstr") {
2061 if (dot_dynstr_sec != 0)
2062 // FIXME: Proper error handling.
2063 report_fatal_error("Already found section named .dynstr!");
2064 dot_dynstr_sec = sh;
2065 VerifyStrTab(dot_dynstr_sec);
2070 // Build symbol name side-mapping if there is one.
2071 if (SymbolTableSectionHeaderIndex) {
2072 const Elf_Word *ShndxTable = reinterpret_cast<const Elf_Word*>(base() +
2073 SymbolTableSectionHeaderIndex->sh_offset);
2075 for (symbol_iterator si = begin_symbols(),
2076 se = end_symbols(); si != se; si.increment(ec)) {
2078 report_fatal_error("Fewer extended symbol table entries than symbols!");
2079 if (*ShndxTable != ELF::SHN_UNDEF)
2080 ExtendedSymbolTable[getSymbol(si->getRawDataRefImpl())] = *ShndxTable;
2086 template<support::endianness target_endianness, bool is64Bits>
2087 symbol_iterator ELFObjectFile<target_endianness, is64Bits>
2088 ::begin_symbols() const {
2089 DataRefImpl SymbolData;
2090 if (SymbolTableSections.size() <= 1) {
2091 SymbolData.d.a = std::numeric_limits<uint32_t>::max();
2092 SymbolData.d.b = std::numeric_limits<uint32_t>::max();
2094 SymbolData.d.a = 1; // The 0th symbol in ELF is fake.
2095 SymbolData.d.b = 1; // The 0th table is .dynsym
2097 return symbol_iterator(SymbolRef(SymbolData, this));
2100 template<support::endianness target_endianness, bool is64Bits>
2101 symbol_iterator ELFObjectFile<target_endianness, is64Bits>
2102 ::end_symbols() const {
2103 DataRefImpl SymbolData;
2104 SymbolData.d.a = std::numeric_limits<uint32_t>::max();
2105 SymbolData.d.b = std::numeric_limits<uint32_t>::max();
2106 return symbol_iterator(SymbolRef(SymbolData, this));
2109 template<support::endianness target_endianness, bool is64Bits>
2110 symbol_iterator ELFObjectFile<target_endianness, is64Bits>
2111 ::begin_dynamic_symbols() const {
2112 DataRefImpl SymbolData;
2113 if (SymbolTableSections[0] == NULL) {
2114 SymbolData.d.a = std::numeric_limits<uint32_t>::max();
2115 SymbolData.d.b = std::numeric_limits<uint32_t>::max();
2117 SymbolData.d.a = 1; // The 0th symbol in ELF is fake.
2118 SymbolData.d.b = 0; // The 0th table is .dynsym
2120 return symbol_iterator(SymbolRef(SymbolData, this));
2123 template<support::endianness target_endianness, bool is64Bits>
2124 symbol_iterator ELFObjectFile<target_endianness, is64Bits>
2125 ::end_dynamic_symbols() const {
2126 DataRefImpl SymbolData;
2127 SymbolData.d.a = std::numeric_limits<uint32_t>::max();
2128 SymbolData.d.b = std::numeric_limits<uint32_t>::max();
2129 return symbol_iterator(SymbolRef(SymbolData, this));
2132 template<support::endianness target_endianness, bool is64Bits>
2133 section_iterator ELFObjectFile<target_endianness, is64Bits>
2134 ::begin_sections() const {
2136 ret.p = reinterpret_cast<intptr_t>(base() + Header->e_shoff);
2137 return section_iterator(SectionRef(ret, this));
2140 template<support::endianness target_endianness, bool is64Bits>
2141 section_iterator ELFObjectFile<target_endianness, is64Bits>
2142 ::end_sections() const {
2144 ret.p = reinterpret_cast<intptr_t>(base()
2146 + (Header->e_shentsize*getNumSections()));
2147 return section_iterator(SectionRef(ret, this));
2150 template<support::endianness target_endianness, bool is64Bits>
2151 typename ELFObjectFile<target_endianness, is64Bits>::dyn_iterator
2152 ELFObjectFile<target_endianness, is64Bits>::begin_dynamic_table() const {
2153 DataRefImpl DynData;
2154 if (dot_dynamic_sec == NULL || dot_dynamic_sec->sh_size == 0) {
2155 DynData.d.a = std::numeric_limits<uint32_t>::max();
2159 return dyn_iterator(DynRef(DynData, this));
2162 template<support::endianness target_endianness, bool is64Bits>
2163 typename ELFObjectFile<target_endianness, is64Bits>::dyn_iterator
2164 ELFObjectFile<target_endianness, is64Bits>
2165 ::end_dynamic_table() const {
2166 DataRefImpl DynData;
2167 DynData.d.a = std::numeric_limits<uint32_t>::max();
2168 return dyn_iterator(DynRef(DynData, this));
2171 template<support::endianness target_endianness, bool is64Bits>
2172 error_code ELFObjectFile<target_endianness, is64Bits>
2173 ::getDynNext(DataRefImpl DynData,
2174 DynRef &Result) const {
2177 // Check to see if we are at the end of .dynamic
2178 if (DynData.d.a >= dot_dynamic_sec->getEntityCount()) {
2179 // We are at the end. Return the terminator.
2180 DynData.d.a = std::numeric_limits<uint32_t>::max();
2183 Result = DynRef(DynData, this);
2184 return object_error::success;
2187 template<support::endianness target_endianness, bool is64Bits>
2189 ELFObjectFile<target_endianness, is64Bits>::getLoadName() const {
2191 // Find the DT_SONAME entry
2192 dyn_iterator it = begin_dynamic_table();
2193 dyn_iterator ie = end_dynamic_table();
2196 if (it->getTag() == ELF::DT_SONAME)
2200 report_fatal_error("dynamic table iteration failed");
2203 if (dot_dynstr_sec == NULL)
2204 report_fatal_error("Dynamic string table is missing");
2205 dt_soname = getString(dot_dynstr_sec, it->getVal());
2213 template<support::endianness target_endianness, bool is64Bits>
2214 library_iterator ELFObjectFile<target_endianness, is64Bits>
2215 ::begin_libraries_needed() const {
2216 // Find the first DT_NEEDED entry
2217 dyn_iterator i = begin_dynamic_table();
2218 dyn_iterator e = end_dynamic_table();
2221 if (i->getTag() == ELF::DT_NEEDED)
2225 report_fatal_error("dynamic table iteration failed");
2227 // Use the same DataRefImpl format as DynRef.
2228 return library_iterator(LibraryRef(i->getRawDataRefImpl(), this));
2231 template<support::endianness target_endianness, bool is64Bits>
2232 error_code ELFObjectFile<target_endianness, is64Bits>
2233 ::getLibraryNext(DataRefImpl Data,
2234 LibraryRef &Result) const {
2235 // Use the same DataRefImpl format as DynRef.
2236 dyn_iterator i = dyn_iterator(DynRef(Data, this));
2237 dyn_iterator e = end_dynamic_table();
2239 // Skip the current dynamic table entry.
2243 // TODO: proper error handling
2245 report_fatal_error("dynamic table iteration failed");
2248 // Find the next DT_NEEDED entry.
2250 if (i->getTag() == ELF::DT_NEEDED)
2254 report_fatal_error("dynamic table iteration failed");
2256 Result = LibraryRef(i->getRawDataRefImpl(), this);
2257 return object_error::success;
2260 template<support::endianness target_endianness, bool is64Bits>
2261 error_code ELFObjectFile<target_endianness, is64Bits>
2262 ::getLibraryPath(DataRefImpl Data, StringRef &Res) const {
2263 dyn_iterator i = dyn_iterator(DynRef(Data, this));
2264 if (i == end_dynamic_table())
2265 report_fatal_error("getLibraryPath() called on iterator end");
2267 if (i->getTag() != ELF::DT_NEEDED)
2268 report_fatal_error("Invalid library_iterator");
2270 // This uses .dynstr to lookup the name of the DT_NEEDED entry.
2271 // THis works as long as DT_STRTAB == .dynstr. This is true most of
2272 // the time, but the specification allows exceptions.
2273 // TODO: This should really use DT_STRTAB instead. Doing this requires
2274 // reading the program headers.
2275 if (dot_dynstr_sec == NULL)
2276 report_fatal_error("Dynamic string table is missing");
2277 Res = getString(dot_dynstr_sec, i->getVal());
2278 return object_error::success;
2281 template<support::endianness target_endianness, bool is64Bits>
2282 library_iterator ELFObjectFile<target_endianness, is64Bits>
2283 ::end_libraries_needed() const {
2284 dyn_iterator e = end_dynamic_table();
2285 // Use the same DataRefImpl format as DynRef.
2286 return library_iterator(LibraryRef(e->getRawDataRefImpl(), this));
2289 template<support::endianness target_endianness, bool is64Bits>
2290 uint8_t ELFObjectFile<target_endianness, is64Bits>::getBytesInAddress() const {
2291 return is64Bits ? 8 : 4;
2294 template<support::endianness target_endianness, bool is64Bits>
2295 StringRef ELFObjectFile<target_endianness, is64Bits>
2296 ::getFileFormatName() const {
2297 switch(Header->e_ident[ELF::EI_CLASS]) {
2298 case ELF::ELFCLASS32:
2299 switch(Header->e_machine) {
2301 return "ELF32-i386";
2302 case ELF::EM_X86_64:
2303 return "ELF32-x86-64";
2306 case ELF::EM_HEXAGON:
2307 return "ELF32-hexagon";
2309 return "ELF32-unknown";
2311 case ELF::ELFCLASS64:
2312 switch(Header->e_machine) {
2314 return "ELF64-i386";
2315 case ELF::EM_X86_64:
2316 return "ELF64-x86-64";
2318 return "ELF64-ppc64";
2320 return "ELF64-unknown";
2323 // FIXME: Proper error handling.
2324 report_fatal_error("Invalid ELFCLASS!");
2328 template<support::endianness target_endianness, bool is64Bits>
2329 unsigned ELFObjectFile<target_endianness, is64Bits>::getArch() const {
2330 switch(Header->e_machine) {
2333 case ELF::EM_X86_64:
2334 return Triple::x86_64;
2337 case ELF::EM_HEXAGON:
2338 return Triple::hexagon;
2340 return (target_endianness == support::little) ?
2341 Triple::mipsel : Triple::mips;
2343 return Triple::ppc64;
2345 return Triple::UnknownArch;
2349 template<support::endianness target_endianness, bool is64Bits>
2350 uint64_t ELFObjectFile<target_endianness, is64Bits>::getNumSections() const {
2351 assert(Header && "Header not initialized!");
2352 if (Header->e_shnum == ELF::SHN_UNDEF) {
2353 assert(SectionHeaderTable && "SectionHeaderTable not initialized!");
2354 return SectionHeaderTable->sh_size;
2356 return Header->e_shnum;
2359 template<support::endianness target_endianness, bool is64Bits>
2361 ELFObjectFile<target_endianness, is64Bits>::getStringTableIndex() const {
2362 if (Header->e_shnum == ELF::SHN_UNDEF) {
2363 if (Header->e_shstrndx == ELF::SHN_HIRESERVE)
2364 return SectionHeaderTable->sh_link;
2365 if (Header->e_shstrndx >= getNumSections())
2368 return Header->e_shstrndx;
2372 template<support::endianness target_endianness, bool is64Bits>
2373 template<typename T>
2375 ELFObjectFile<target_endianness, is64Bits>::getEntry(uint16_t Section,
2376 uint32_t Entry) const {
2377 return getEntry<T>(getSection(Section), Entry);
2380 template<support::endianness target_endianness, bool is64Bits>
2381 template<typename T>
2383 ELFObjectFile<target_endianness, is64Bits>::getEntry(const Elf_Shdr * Section,
2384 uint32_t Entry) const {
2385 return reinterpret_cast<const T *>(
2387 + Section->sh_offset
2388 + (Entry * Section->sh_entsize));
2391 template<support::endianness target_endianness, bool is64Bits>
2392 const typename ELFObjectFile<target_endianness, is64Bits>::Elf_Sym *
2393 ELFObjectFile<target_endianness, is64Bits>::getSymbol(DataRefImpl Symb) const {
2394 return getEntry<Elf_Sym>(SymbolTableSections[Symb.d.b], Symb.d.a);
2397 template<support::endianness target_endianness, bool is64Bits>
2398 const typename ELFObjectFile<target_endianness, is64Bits>::Elf_Dyn *
2399 ELFObjectFile<target_endianness, is64Bits>::getDyn(DataRefImpl DynData) const {
2400 return getEntry<Elf_Dyn>(dot_dynamic_sec, DynData.d.a);
2403 template<support::endianness target_endianness, bool is64Bits>
2404 const typename ELFObjectFile<target_endianness, is64Bits>::Elf_Rel *
2405 ELFObjectFile<target_endianness, is64Bits>::getRel(DataRefImpl Rel) const {
2406 return getEntry<Elf_Rel>(Rel.w.b, Rel.w.c);
2409 template<support::endianness target_endianness, bool is64Bits>
2410 const typename ELFObjectFile<target_endianness, is64Bits>::Elf_Rela *
2411 ELFObjectFile<target_endianness, is64Bits>::getRela(DataRefImpl Rela) const {
2412 return getEntry<Elf_Rela>(Rela.w.b, Rela.w.c);
2415 template<support::endianness target_endianness, bool is64Bits>
2416 const typename ELFObjectFile<target_endianness, is64Bits>::Elf_Shdr *
2417 ELFObjectFile<target_endianness, is64Bits>::getSection(DataRefImpl Symb) const {
2418 const Elf_Shdr *sec = getSection(Symb.d.b);
2419 if (sec->sh_type != ELF::SHT_SYMTAB || sec->sh_type != ELF::SHT_DYNSYM)
2420 // FIXME: Proper error handling.
2421 report_fatal_error("Invalid symbol table section!");
2425 template<support::endianness target_endianness, bool is64Bits>
2426 const typename ELFObjectFile<target_endianness, is64Bits>::Elf_Shdr *
2427 ELFObjectFile<target_endianness, is64Bits>::getSection(uint32_t index) const {
2430 if (!SectionHeaderTable || index >= getNumSections())
2431 // FIXME: Proper error handling.
2432 report_fatal_error("Invalid section index!");
2434 return reinterpret_cast<const Elf_Shdr *>(
2435 reinterpret_cast<const char *>(SectionHeaderTable)
2436 + (index * Header->e_shentsize));
2439 template<support::endianness target_endianness, bool is64Bits>
2440 const char *ELFObjectFile<target_endianness, is64Bits>
2441 ::getString(uint32_t section,
2442 ELF::Elf32_Word offset) const {
2443 return getString(getSection(section), offset);
2446 template<support::endianness target_endianness, bool is64Bits>
2447 const char *ELFObjectFile<target_endianness, is64Bits>
2448 ::getString(const Elf_Shdr *section,
2449 ELF::Elf32_Word offset) const {
2450 assert(section && section->sh_type == ELF::SHT_STRTAB && "Invalid section!");
2451 if (offset >= section->sh_size)
2452 // FIXME: Proper error handling.
2453 report_fatal_error("Symbol name offset outside of string table!");
2454 return (const char *)base() + section->sh_offset + offset;
2457 template<support::endianness target_endianness, bool is64Bits>
2458 error_code ELFObjectFile<target_endianness, is64Bits>
2459 ::getSymbolName(const Elf_Shdr *section,
2460 const Elf_Sym *symb,
2461 StringRef &Result) const {
2462 if (symb->st_name == 0) {
2463 const Elf_Shdr *section = getSection(symb);
2467 Result = getString(dot_shstrtab_sec, section->sh_name);
2468 return object_error::success;
2471 if (section == SymbolTableSections[0]) {
2472 // Symbol is in .dynsym, use .dynstr string table
2473 Result = getString(dot_dynstr_sec, symb->st_name);
2475 // Use the default symbol table name section.
2476 Result = getString(dot_strtab_sec, symb->st_name);
2478 return object_error::success;
2481 template<support::endianness target_endianness, bool is64Bits>
2482 error_code ELFObjectFile<target_endianness, is64Bits>
2483 ::getSectionName(const Elf_Shdr *section,
2484 StringRef &Result) const {
2485 Result = StringRef(getString(dot_shstrtab_sec, section->sh_name));
2486 return object_error::success;
2489 template<support::endianness target_endianness, bool is64Bits>
2490 error_code ELFObjectFile<target_endianness, is64Bits>
2491 ::getSymbolVersion(const Elf_Shdr *section,
2492 const Elf_Sym *symb,
2494 bool &IsDefault) const {
2495 // Handle non-dynamic symbols.
2496 if (section != SymbolTableSections[0]) {
2497 // Non-dynamic symbols can have versions in their names
2498 // A name of the form 'foo@V1' indicates version 'V1', non-default.
2499 // A name of the form 'foo@@V2' indicates version 'V2', default version.
2501 error_code ec = getSymbolName(section, symb, Name);
2502 if (ec != object_error::success)
2504 size_t atpos = Name.find('@');
2505 if (atpos == StringRef::npos) {
2508 return object_error::success;
2511 if (atpos < Name.size() && Name[atpos] == '@') {
2517 Version = Name.substr(atpos);
2518 return object_error::success;
2521 // This is a dynamic symbol. Look in the GNU symbol version table.
2522 if (dot_gnu_version_sec == NULL) {
2523 // No version table.
2526 return object_error::success;
2529 // Determine the position in the symbol table of this entry.
2530 const char *sec_start = (const char*)base() + section->sh_offset;
2531 size_t entry_index = ((const char*)symb - sec_start)/section->sh_entsize;
2533 // Get the corresponding version index entry
2534 const Elf_Versym *vs = getEntry<Elf_Versym>(dot_gnu_version_sec, entry_index);
2535 size_t version_index = vs->vs_index & ELF::VERSYM_VERSION;
2537 // Special markers for unversioned symbols.
2538 if (version_index == ELF::VER_NDX_LOCAL ||
2539 version_index == ELF::VER_NDX_GLOBAL) {
2542 return object_error::success;
2545 // Lookup this symbol in the version table
2547 if (version_index >= VersionMap.size() || VersionMap[version_index].isNull())
2548 report_fatal_error("Symbol has version index without corresponding "
2549 "define or reference entry");
2550 const VersionMapEntry &entry = VersionMap[version_index];
2552 // Get the version name string
2554 if (entry.isVerdef()) {
2555 // The first Verdaux entry holds the name.
2556 name_offset = entry.getVerdef()->getAux()->vda_name;
2558 name_offset = entry.getVernaux()->vna_name;
2560 Version = getString(dot_dynstr_sec, name_offset);
2563 if (entry.isVerdef()) {
2564 IsDefault = !(vs->vs_index & ELF::VERSYM_HIDDEN);
2569 return object_error::success;
2572 template<support::endianness target_endianness, bool is64Bits>
2573 inline DynRefImpl<target_endianness, is64Bits>
2574 ::DynRefImpl(DataRefImpl DynP, const OwningType *Owner)
2576 , OwningObject(Owner) {}
2578 template<support::endianness target_endianness, bool is64Bits>
2579 inline bool DynRefImpl<target_endianness, is64Bits>
2580 ::operator==(const DynRefImpl &Other) const {
2581 return DynPimpl == Other.DynPimpl;
2584 template<support::endianness target_endianness, bool is64Bits>
2585 inline bool DynRefImpl<target_endianness, is64Bits>
2586 ::operator <(const DynRefImpl &Other) const {
2587 return DynPimpl < Other.DynPimpl;
2590 template<support::endianness target_endianness, bool is64Bits>
2591 inline error_code DynRefImpl<target_endianness, is64Bits>
2592 ::getNext(DynRefImpl &Result) const {
2593 return OwningObject->getDynNext(DynPimpl, Result);
2596 template<support::endianness target_endianness, bool is64Bits>
2597 inline int64_t DynRefImpl<target_endianness, is64Bits>
2599 return OwningObject->getDyn(DynPimpl)->d_tag;
2602 template<support::endianness target_endianness, bool is64Bits>
2603 inline uint64_t DynRefImpl<target_endianness, is64Bits>
2605 return OwningObject->getDyn(DynPimpl)->d_un.d_val;
2608 template<support::endianness target_endianness, bool is64Bits>
2609 inline uint64_t DynRefImpl<target_endianness, is64Bits>
2611 return OwningObject->getDyn(DynPimpl)->d_un.d_ptr;
2614 template<support::endianness target_endianness, bool is64Bits>
2615 inline DataRefImpl DynRefImpl<target_endianness, is64Bits>
2616 ::getRawDataRefImpl() const {
2620 /// This is a generic interface for retrieving GNU symbol version
2621 /// information from an ELFObjectFile.
2622 static inline error_code GetELFSymbolVersion(const ObjectFile *Obj,
2623 const SymbolRef &Sym,
2626 // Little-endian 32-bit
2627 if (const ELFObjectFile<support::little, false> *ELFObj =
2628 dyn_cast<ELFObjectFile<support::little, false> >(Obj))
2629 return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
2631 // Big-endian 32-bit
2632 if (const ELFObjectFile<support::big, false> *ELFObj =
2633 dyn_cast<ELFObjectFile<support::big, false> >(Obj))
2634 return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
2636 // Little-endian 64-bit
2637 if (const ELFObjectFile<support::little, true> *ELFObj =
2638 dyn_cast<ELFObjectFile<support::little, true> >(Obj))
2639 return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
2641 // Big-endian 64-bit
2642 if (const ELFObjectFile<support::big, true> *ELFObj =
2643 dyn_cast<ELFObjectFile<support::big, true> >(Obj))
2644 return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
2646 llvm_unreachable("Object passed to GetELFSymbolVersion() is not ELF");