1 //===- ELF.h - ELF object file implementation -------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file declares the ELFObjectFile template class.
12 //===----------------------------------------------------------------------===//
14 #ifndef LLVM_OBJECT_ELF_H
15 #define LLVM_OBJECT_ELF_H
17 #include "llvm/ADT/DenseMap.h"
18 #include "llvm/ADT/PointerIntPair.h"
19 #include "llvm/ADT/SmallVector.h"
20 #include "llvm/ADT/StringSwitch.h"
21 #include "llvm/ADT/Triple.h"
22 #include "llvm/Object/ObjectFile.h"
23 #include "llvm/Support/Casting.h"
24 #include "llvm/Support/ELF.h"
25 #include "llvm/Support/Endian.h"
26 #include "llvm/Support/ErrorHandling.h"
27 #include "llvm/Support/MemoryBuffer.h"
28 #include "llvm/Support/raw_ostream.h"
36 using support::endianness;
38 template<endianness target_endianness, std::size_t max_alignment, bool is64Bits>
41 TargetEndianness = target_endianness,
42 MaxAlignment = max_alignment,
47 template<typename T, int max_align>
48 struct MaximumAlignment {
49 enum {value = AlignOf<T>::Alignment > max_align ? max_align
50 : AlignOf<T>::Alignment};
53 // Subclasses of ELFObjectFile may need this for template instantiation
54 inline std::pair<unsigned char, unsigned char>
55 getElfArchType(MemoryBuffer *Object) {
56 if (Object->getBufferSize() < ELF::EI_NIDENT)
57 return std::make_pair((uint8_t)ELF::ELFCLASSNONE,(uint8_t)ELF::ELFDATANONE);
58 return std::make_pair( (uint8_t)Object->getBufferStart()[ELF::EI_CLASS]
59 , (uint8_t)Object->getBufferStart()[ELF::EI_DATA]);
62 // Templates to choose Elf_Addr and Elf_Off depending on is64Bits.
63 template<endianness target_endianness, std::size_t max_alignment>
64 struct ELFDataTypeTypedefHelperCommon {
65 typedef support::detail::packed_endian_specific_integral
66 <uint16_t, target_endianness,
67 MaximumAlignment<uint16_t, max_alignment>::value> Elf_Half;
68 typedef support::detail::packed_endian_specific_integral
69 <uint32_t, target_endianness,
70 MaximumAlignment<uint32_t, max_alignment>::value> Elf_Word;
71 typedef support::detail::packed_endian_specific_integral
72 <int32_t, target_endianness,
73 MaximumAlignment<int32_t, max_alignment>::value> Elf_Sword;
74 typedef support::detail::packed_endian_specific_integral
75 <uint64_t, target_endianness,
76 MaximumAlignment<uint64_t, max_alignment>::value> Elf_Xword;
77 typedef support::detail::packed_endian_specific_integral
78 <int64_t, target_endianness,
79 MaximumAlignment<int64_t, max_alignment>::value> Elf_Sxword;
83 struct ELFDataTypeTypedefHelper;
86 template<template<endianness, std::size_t, bool> class ELFT,
87 endianness TargetEndianness, std::size_t MaxAlign>
88 struct ELFDataTypeTypedefHelper<ELFT<TargetEndianness, MaxAlign, false> >
89 : ELFDataTypeTypedefHelperCommon<TargetEndianness, MaxAlign> {
90 typedef uint32_t value_type;
91 typedef support::detail::packed_endian_specific_integral
92 <value_type, TargetEndianness,
93 MaximumAlignment<value_type, MaxAlign>::value> Elf_Addr;
94 typedef support::detail::packed_endian_specific_integral
95 <value_type, TargetEndianness,
96 MaximumAlignment<value_type, MaxAlign>::value> Elf_Off;
100 template<template<endianness, std::size_t, bool> class ELFT,
101 endianness TargetEndianness, std::size_t MaxAlign>
102 struct ELFDataTypeTypedefHelper<ELFT<TargetEndianness, MaxAlign, true> >
103 : ELFDataTypeTypedefHelperCommon<TargetEndianness, MaxAlign> {
104 typedef uint64_t value_type;
105 typedef support::detail::packed_endian_specific_integral
106 <value_type, TargetEndianness,
107 MaximumAlignment<value_type, MaxAlign>::value> Elf_Addr;
108 typedef support::detail::packed_endian_specific_integral
109 <value_type, TargetEndianness,
110 MaximumAlignment<value_type, MaxAlign>::value> Elf_Off;
113 // I really don't like doing this, but the alternative is copypasta.
114 #define LLVM_ELF_IMPORT_TYPES(ELFT) \
115 typedef typename ELFDataTypeTypedefHelper <ELFT>::Elf_Addr Elf_Addr; \
116 typedef typename ELFDataTypeTypedefHelper <ELFT>::Elf_Off Elf_Off; \
117 typedef typename ELFDataTypeTypedefHelper <ELFT>::Elf_Half Elf_Half; \
118 typedef typename ELFDataTypeTypedefHelper <ELFT>::Elf_Word Elf_Word; \
119 typedef typename ELFDataTypeTypedefHelper <ELFT>::Elf_Sword Elf_Sword; \
120 typedef typename ELFDataTypeTypedefHelper <ELFT>::Elf_Xword Elf_Xword; \
121 typedef typename ELFDataTypeTypedefHelper <ELFT>::Elf_Sxword Elf_Sxword;
123 // This is required to get template types into a macro :(
124 #define LLVM_ELF_COMMA ,
128 struct Elf_Shdr_Base;
130 template<template<endianness, std::size_t, bool> class ELFT,
131 endianness TargetEndianness, std::size_t MaxAlign>
132 struct Elf_Shdr_Base<ELFT<TargetEndianness, MaxAlign, false> > {
133 LLVM_ELF_IMPORT_TYPES(ELFT<TargetEndianness LLVM_ELF_COMMA
134 MaxAlign LLVM_ELF_COMMA false>)
135 Elf_Word sh_name; // Section name (index into string table)
136 Elf_Word sh_type; // Section type (SHT_*)
137 Elf_Word sh_flags; // Section flags (SHF_*)
138 Elf_Addr sh_addr; // Address where section is to be loaded
139 Elf_Off sh_offset; // File offset of section data, in bytes
140 Elf_Word sh_size; // Size of section, in bytes
141 Elf_Word sh_link; // Section type-specific header table index link
142 Elf_Word sh_info; // Section type-specific extra information
143 Elf_Word sh_addralign;// Section address alignment
144 Elf_Word sh_entsize; // Size of records contained within the section
147 template<template<endianness, std::size_t, bool> class ELFT,
148 endianness TargetEndianness, std::size_t MaxAlign>
149 struct Elf_Shdr_Base<ELFT<TargetEndianness, MaxAlign, true> > {
150 LLVM_ELF_IMPORT_TYPES(ELFT<TargetEndianness LLVM_ELF_COMMA
151 MaxAlign LLVM_ELF_COMMA true>)
152 Elf_Word sh_name; // Section name (index into string table)
153 Elf_Word sh_type; // Section type (SHT_*)
154 Elf_Xword sh_flags; // Section flags (SHF_*)
155 Elf_Addr sh_addr; // Address where section is to be loaded
156 Elf_Off sh_offset; // File offset of section data, in bytes
157 Elf_Xword sh_size; // Size of section, in bytes
158 Elf_Word sh_link; // Section type-specific header table index link
159 Elf_Word sh_info; // Section type-specific extra information
160 Elf_Xword sh_addralign;// Section address alignment
161 Elf_Xword sh_entsize; // Size of records contained within the section
165 struct Elf_Shdr_Impl : Elf_Shdr_Base<ELFT> {
166 using Elf_Shdr_Base<ELFT>::sh_entsize;
167 using Elf_Shdr_Base<ELFT>::sh_size;
169 /// @brief Get the number of entities this section contains if it has any.
170 unsigned getEntityCount() const {
173 return sh_size / sh_entsize;
180 template<template<endianness, std::size_t, bool> class ELFT,
181 endianness TargetEndianness, std::size_t MaxAlign>
182 struct Elf_Sym_Base<ELFT<TargetEndianness, MaxAlign, false> > {
183 LLVM_ELF_IMPORT_TYPES(ELFT<TargetEndianness LLVM_ELF_COMMA
184 MaxAlign LLVM_ELF_COMMA false>)
185 Elf_Word st_name; // Symbol name (index into string table)
186 Elf_Addr st_value; // Value or address associated with the symbol
187 Elf_Word st_size; // Size of the symbol
188 unsigned char st_info; // Symbol's type and binding attributes
189 unsigned char st_other; // Must be zero; reserved
190 Elf_Half st_shndx; // Which section (header table index) it's defined in
193 template<template<endianness, std::size_t, bool> class ELFT,
194 endianness TargetEndianness, std::size_t MaxAlign>
195 struct Elf_Sym_Base<ELFT<TargetEndianness, MaxAlign, true> > {
196 LLVM_ELF_IMPORT_TYPES(ELFT<TargetEndianness LLVM_ELF_COMMA
197 MaxAlign LLVM_ELF_COMMA true>)
198 Elf_Word st_name; // Symbol name (index into string table)
199 unsigned char st_info; // Symbol's type and binding attributes
200 unsigned char st_other; // Must be zero; reserved
201 Elf_Half st_shndx; // Which section (header table index) it's defined in
202 Elf_Addr st_value; // Value or address associated with the symbol
203 Elf_Xword st_size; // Size of the symbol
207 struct Elf_Sym_Impl : Elf_Sym_Base<ELFT> {
208 using Elf_Sym_Base<ELFT>::st_info;
210 // These accessors and mutators correspond to the ELF32_ST_BIND,
211 // ELF32_ST_TYPE, and ELF32_ST_INFO macros defined in the ELF specification:
212 unsigned char getBinding() const { return st_info >> 4; }
213 unsigned char getType() const { return st_info & 0x0f; }
214 void setBinding(unsigned char b) { setBindingAndType(b, getType()); }
215 void setType(unsigned char t) { setBindingAndType(getBinding(), t); }
216 void setBindingAndType(unsigned char b, unsigned char t) {
217 st_info = (b << 4) + (t & 0x0f);
221 /// Elf_Versym: This is the structure of entries in the SHT_GNU_versym section
222 /// (.gnu.version). This structure is identical for ELF32 and ELF64.
224 struct Elf_Versym_Impl {
225 LLVM_ELF_IMPORT_TYPES(ELFT)
226 Elf_Half vs_index; // Version index with flags (e.g. VERSYM_HIDDEN)
230 struct Elf_Verdaux_Impl;
232 /// Elf_Verdef: This is the structure of entries in the SHT_GNU_verdef section
233 /// (.gnu.version_d). This structure is identical for ELF32 and ELF64.
235 struct Elf_Verdef_Impl {
236 LLVM_ELF_IMPORT_TYPES(ELFT)
237 typedef Elf_Verdaux_Impl<ELFT> Elf_Verdaux;
238 Elf_Half vd_version; // Version of this structure (e.g. VER_DEF_CURRENT)
239 Elf_Half vd_flags; // Bitwise flags (VER_DEF_*)
240 Elf_Half vd_ndx; // Version index, used in .gnu.version entries
241 Elf_Half vd_cnt; // Number of Verdaux entries
242 Elf_Word vd_hash; // Hash of name
243 Elf_Word vd_aux; // Offset to the first Verdaux entry (in bytes)
244 Elf_Word vd_next; // Offset to the next Verdef entry (in bytes)
246 /// Get the first Verdaux entry for this Verdef.
247 const Elf_Verdaux *getAux() const {
248 return reinterpret_cast<const Elf_Verdaux*>((const char*)this + vd_aux);
252 /// Elf_Verdaux: This is the structure of auxiliary data in the SHT_GNU_verdef
253 /// section (.gnu.version_d). This structure is identical for ELF32 and ELF64.
255 struct Elf_Verdaux_Impl {
256 LLVM_ELF_IMPORT_TYPES(ELFT)
257 Elf_Word vda_name; // Version name (offset in string table)
258 Elf_Word vda_next; // Offset to next Verdaux entry (in bytes)
261 /// Elf_Verneed: This is the structure of entries in the SHT_GNU_verneed
262 /// section (.gnu.version_r). This structure is identical for ELF32 and ELF64.
264 struct Elf_Verneed_Impl {
265 LLVM_ELF_IMPORT_TYPES(ELFT)
266 Elf_Half vn_version; // Version of this structure (e.g. VER_NEED_CURRENT)
267 Elf_Half vn_cnt; // Number of associated Vernaux entries
268 Elf_Word vn_file; // Library name (string table offset)
269 Elf_Word vn_aux; // Offset to first Vernaux entry (in bytes)
270 Elf_Word vn_next; // Offset to next Verneed entry (in bytes)
273 /// Elf_Vernaux: This is the structure of auxiliary data in SHT_GNU_verneed
274 /// section (.gnu.version_r). This structure is identical for ELF32 and ELF64.
276 struct Elf_Vernaux_Impl {
277 LLVM_ELF_IMPORT_TYPES(ELFT)
278 Elf_Word vna_hash; // Hash of dependency name
279 Elf_Half vna_flags; // Bitwise Flags (VER_FLAG_*)
280 Elf_Half vna_other; // Version index, used in .gnu.version entries
281 Elf_Word vna_name; // Dependency name
282 Elf_Word vna_next; // Offset to next Vernaux entry (in bytes)
285 /// Elf_Dyn_Base: This structure matches the form of entries in the dynamic
286 /// table section (.dynamic) look like.
290 template<template<endianness, std::size_t, bool> class ELFT,
291 endianness TargetEndianness, std::size_t MaxAlign>
292 struct Elf_Dyn_Base<ELFT<TargetEndianness, MaxAlign, false> > {
293 LLVM_ELF_IMPORT_TYPES(ELFT<TargetEndianness LLVM_ELF_COMMA
294 MaxAlign LLVM_ELF_COMMA false>)
302 template<template<endianness, std::size_t, bool> class ELFT,
303 endianness TargetEndianness, std::size_t MaxAlign>
304 struct Elf_Dyn_Base<ELFT<TargetEndianness, MaxAlign, true> > {
305 LLVM_ELF_IMPORT_TYPES(ELFT<TargetEndianness LLVM_ELF_COMMA
306 MaxAlign LLVM_ELF_COMMA true>)
314 /// Elf_Dyn_Impl: This inherits from Elf_Dyn_Base, adding getters and setters.
316 struct Elf_Dyn_Impl : Elf_Dyn_Base<ELFT> {
317 using Elf_Dyn_Base<ELFT>::d_tag;
318 using Elf_Dyn_Base<ELFT>::d_un;
319 int64_t getTag() const { return d_tag; }
320 uint64_t getVal() const { return d_un.d_val; }
321 uint64_t getPtr() const { return d_un.ptr; }
327 // DynRefImpl: Reference to an entry in the dynamic table
328 // This is an ELF-specific interface.
331 typedef Elf_Dyn_Impl<ELFT> Elf_Dyn;
332 typedef ELFObjectFile<ELFT> OwningType;
334 DataRefImpl DynPimpl;
335 const OwningType *OwningObject;
338 DynRefImpl() : OwningObject(NULL) { }
340 DynRefImpl(DataRefImpl DynP, const OwningType *Owner);
342 bool operator==(const DynRefImpl &Other) const;
343 bool operator <(const DynRefImpl &Other) const;
345 error_code getNext(DynRefImpl &Result) const;
346 int64_t getTag() const;
347 uint64_t getVal() const;
348 uint64_t getPtr() const;
350 DataRefImpl getRawDataRefImpl() const;
353 // Elf_Rel: Elf Relocation
354 template<class ELFT, bool isRela>
357 template<template<endianness, std::size_t, bool> class ELFT,
358 endianness TargetEndianness, std::size_t MaxAlign>
359 struct Elf_Rel_Base<ELFT<TargetEndianness, MaxAlign, false>, false> {
360 LLVM_ELF_IMPORT_TYPES(ELFT<TargetEndianness LLVM_ELF_COMMA
361 MaxAlign LLVM_ELF_COMMA false>)
362 Elf_Addr r_offset; // Location (file byte offset, or program virtual addr)
363 Elf_Word r_info; // Symbol table index and type of relocation to apply
366 template<template<endianness, std::size_t, bool> class ELFT,
367 endianness TargetEndianness, std::size_t MaxAlign>
368 struct Elf_Rel_Base<ELFT<TargetEndianness, MaxAlign, true>, false> {
369 LLVM_ELF_IMPORT_TYPES(ELFT<TargetEndianness LLVM_ELF_COMMA
370 MaxAlign LLVM_ELF_COMMA true>)
371 Elf_Addr r_offset; // Location (file byte offset, or program virtual addr)
372 Elf_Xword r_info; // Symbol table index and type of relocation to apply
375 template<template<endianness, std::size_t, bool> class ELFT,
376 endianness TargetEndianness, std::size_t MaxAlign>
377 struct Elf_Rel_Base<ELFT<TargetEndianness, MaxAlign, false>, true> {
378 LLVM_ELF_IMPORT_TYPES(ELFT<TargetEndianness LLVM_ELF_COMMA
379 MaxAlign LLVM_ELF_COMMA false>)
380 Elf_Addr r_offset; // Location (file byte offset, or program virtual addr)
381 Elf_Word r_info; // Symbol table index and type of relocation to apply
382 Elf_Sword r_addend; // Compute value for relocatable field by adding this
385 template<template<endianness, std::size_t, bool> class ELFT,
386 endianness TargetEndianness, std::size_t MaxAlign>
387 struct Elf_Rel_Base<ELFT<TargetEndianness, MaxAlign, true>, true> {
388 LLVM_ELF_IMPORT_TYPES(ELFT<TargetEndianness LLVM_ELF_COMMA
389 MaxAlign LLVM_ELF_COMMA true>)
390 Elf_Addr r_offset; // Location (file byte offset, or program virtual addr)
391 Elf_Xword r_info; // Symbol table index and type of relocation to apply
392 Elf_Sxword r_addend; // Compute value for relocatable field by adding this.
395 template<class ELFT, bool isRela>
398 template<template<endianness, std::size_t, bool> class ELFT,
399 endianness TargetEndianness, std::size_t MaxAlign, bool isRela>
400 struct Elf_Rel_Impl<ELFT<TargetEndianness, MaxAlign, true>, isRela>
401 : Elf_Rel_Base<ELFT<TargetEndianness, MaxAlign, true>, isRela> {
402 using Elf_Rel_Base<ELFT<TargetEndianness, MaxAlign, true>, isRela>::r_info;
403 LLVM_ELF_IMPORT_TYPES(ELFT<TargetEndianness LLVM_ELF_COMMA
404 MaxAlign LLVM_ELF_COMMA true>)
406 // These accessors and mutators correspond to the ELF64_R_SYM, ELF64_R_TYPE,
407 // and ELF64_R_INFO macros defined in the ELF specification:
408 uint32_t getSymbol() const { return (uint32_t) (r_info >> 32); }
409 uint32_t getType() const {
410 return (uint32_t) (r_info & 0xffffffffL);
412 void setSymbol(uint32_t s) { setSymbolAndType(s, getType()); }
413 void setType(uint32_t t) { setSymbolAndType(getSymbol(), t); }
414 void setSymbolAndType(uint32_t s, uint32_t t) {
415 r_info = ((uint64_t)s << 32) + (t&0xffffffffL);
419 template<template<endianness, std::size_t, bool> class ELFT,
420 endianness TargetEndianness, std::size_t MaxAlign, bool isRela>
421 struct Elf_Rel_Impl<ELFT<TargetEndianness, MaxAlign, false>, isRela>
422 : Elf_Rel_Base<ELFT<TargetEndianness, MaxAlign, false>, isRela> {
423 using Elf_Rel_Base<ELFT<TargetEndianness, MaxAlign, false>, isRela>::r_info;
424 LLVM_ELF_IMPORT_TYPES(ELFT<TargetEndianness LLVM_ELF_COMMA
425 MaxAlign LLVM_ELF_COMMA false>)
427 // These accessors and mutators correspond to the ELF32_R_SYM, ELF32_R_TYPE,
428 // and ELF32_R_INFO macros defined in the ELF specification:
429 uint32_t getSymbol() const { return (r_info >> 8); }
430 unsigned char getType() const { return (unsigned char) (r_info & 0x0ff); }
431 void setSymbol(uint32_t s) { setSymbolAndType(s, getType()); }
432 void setType(unsigned char t) { setSymbolAndType(getSymbol(), t); }
433 void setSymbolAndType(uint32_t s, unsigned char t) {
434 r_info = (s << 8) + t;
439 struct Elf_Ehdr_Impl {
440 LLVM_ELF_IMPORT_TYPES(ELFT)
441 unsigned char e_ident[ELF::EI_NIDENT]; // ELF Identification bytes
442 Elf_Half e_type; // Type of file (see ET_*)
443 Elf_Half e_machine; // Required architecture for this file (see EM_*)
444 Elf_Word e_version; // Must be equal to 1
445 Elf_Addr e_entry; // Address to jump to in order to start program
446 Elf_Off e_phoff; // Program header table's file offset, in bytes
447 Elf_Off e_shoff; // Section header table's file offset, in bytes
448 Elf_Word e_flags; // Processor-specific flags
449 Elf_Half e_ehsize; // Size of ELF header, in bytes
450 Elf_Half e_phentsize;// Size of an entry in the program header table
451 Elf_Half e_phnum; // Number of entries in the program header table
452 Elf_Half e_shentsize;// Size of an entry in the section header table
453 Elf_Half e_shnum; // Number of entries in the section header table
454 Elf_Half e_shstrndx; // Section header table index of section name
456 bool checkMagic() const {
457 return (memcmp(e_ident, ELF::ElfMagic, strlen(ELF::ElfMagic))) == 0;
459 unsigned char getFileClass() const { return e_ident[ELF::EI_CLASS]; }
460 unsigned char getDataEncoding() const { return e_ident[ELF::EI_DATA]; }
464 struct Elf_Phdr_Impl;
466 template<template<endianness, std::size_t, bool> class ELFT,
467 endianness TargetEndianness, std::size_t MaxAlign>
468 struct Elf_Phdr_Impl<ELFT<TargetEndianness, MaxAlign, false> > {
469 LLVM_ELF_IMPORT_TYPES(ELFT<TargetEndianness LLVM_ELF_COMMA
470 MaxAlign LLVM_ELF_COMMA false>)
471 Elf_Word p_type; // Type of segment
472 Elf_Off p_offset; // FileOffset where segment is located, in bytes
473 Elf_Addr p_vaddr; // Virtual Address of beginning of segment
474 Elf_Addr p_paddr; // Physical address of beginning of segment (OS-specific)
475 Elf_Word p_filesz; // Num. of bytes in file image of segment (may be zero)
476 Elf_Word p_memsz; // Num. of bytes in mem image of segment (may be zero)
477 Elf_Word p_flags; // Segment flags
478 Elf_Word p_align; // Segment alignment constraint
481 template<template<endianness, std::size_t, bool> class ELFT,
482 endianness TargetEndianness, std::size_t MaxAlign>
483 struct Elf_Phdr_Impl<ELFT<TargetEndianness, MaxAlign, true> > {
484 LLVM_ELF_IMPORT_TYPES(ELFT<TargetEndianness LLVM_ELF_COMMA
485 MaxAlign LLVM_ELF_COMMA true>)
486 Elf_Word p_type; // Type of segment
487 Elf_Word p_flags; // Segment flags
488 Elf_Off p_offset; // FileOffset where segment is located, in bytes
489 Elf_Addr p_vaddr; // Virtual Address of beginning of segment
490 Elf_Addr p_paddr; // Physical address of beginning of segment (OS-specific)
491 Elf_Xword p_filesz; // Num. of bytes in file image of segment (may be zero)
492 Elf_Xword p_memsz; // Num. of bytes in mem image of segment (may be zero)
493 Elf_Xword p_align; // Segment alignment constraint
497 class ELFObjectFile : public ObjectFile {
498 LLVM_ELF_IMPORT_TYPES(ELFT)
500 typedef Elf_Ehdr_Impl<ELFT> Elf_Ehdr;
501 typedef Elf_Shdr_Impl<ELFT> Elf_Shdr;
502 typedef Elf_Sym_Impl<ELFT> Elf_Sym;
503 typedef Elf_Dyn_Impl<ELFT> Elf_Dyn;
504 typedef Elf_Phdr_Impl<ELFT> Elf_Phdr;
505 typedef Elf_Rel_Impl<ELFT, false> Elf_Rel;
506 typedef Elf_Rel_Impl<ELFT, true> Elf_Rela;
507 typedef Elf_Verdef_Impl<ELFT> Elf_Verdef;
508 typedef Elf_Verdaux_Impl<ELFT> Elf_Verdaux;
509 typedef Elf_Verneed_Impl<ELFT> Elf_Verneed;
510 typedef Elf_Vernaux_Impl<ELFT> Elf_Vernaux;
511 typedef Elf_Versym_Impl<ELFT> Elf_Versym;
512 typedef DynRefImpl<ELFT> DynRef;
513 typedef content_iterator<DynRef> dyn_iterator;
516 // This flag is used for classof, to distinguish ELFObjectFile from
517 // its subclass. If more subclasses will be created, this flag will
518 // have to become an enum.
519 bool isDyldELFObject;
522 typedef SmallVector<const Elf_Shdr*, 1> Sections_t;
523 typedef DenseMap<unsigned, unsigned> IndexMap_t;
524 typedef DenseMap<const Elf_Shdr*, SmallVector<uint32_t, 1> > RelocMap_t;
526 const Elf_Ehdr *Header;
527 const Elf_Shdr *SectionHeaderTable;
528 const Elf_Shdr *dot_shstrtab_sec; // Section header string table.
529 const Elf_Shdr *dot_strtab_sec; // Symbol header string table.
530 const Elf_Shdr *dot_dynstr_sec; // Dynamic symbol string table.
532 // SymbolTableSections[0] always points to the dynamic string table section
533 // header, or NULL if there is no dynamic string table.
534 Sections_t SymbolTableSections;
535 IndexMap_t SymbolTableSectionsIndexMap;
536 DenseMap<const Elf_Sym*, ELF::Elf64_Word> ExtendedSymbolTable;
538 const Elf_Shdr *dot_dynamic_sec; // .dynamic
539 const Elf_Shdr *dot_gnu_version_sec; // .gnu.version
540 const Elf_Shdr *dot_gnu_version_r_sec; // .gnu.version_r
541 const Elf_Shdr *dot_gnu_version_d_sec; // .gnu.version_d
543 // Pointer to SONAME entry in dynamic string table
544 // This is set the first time getLoadName is called.
545 mutable const char *dt_soname;
548 /// \brief Iterate over constant sized entities.
550 class ELFEntityIterator {
552 typedef void difference_type;
553 typedef EntT value_type;
554 typedef std::forward_iterator_tag iterator_category;
555 typedef value_type &reference;
556 typedef value_type *pointer;
558 /// \brief Default construct iterator.
559 ELFEntityIterator() : EntitySize(0), Current(0) {}
560 ELFEntityIterator(uint64_t EntSize, const char *Start)
561 : EntitySize(EntSize)
564 reference operator *() {
565 assert(Current && "Attempted to dereference an invalid iterator!");
566 return *reinterpret_cast<pointer>(Current);
569 pointer operator ->() {
570 assert(Current && "Attempted to dereference an invalid iterator!");
571 return reinterpret_cast<pointer>(Current);
574 bool operator ==(const ELFEntityIterator &Other) {
575 return Current == Other.Current;
578 bool operator !=(const ELFEntityIterator &Other) {
579 return !(*this == Other);
582 ELFEntityIterator &operator ++() {
583 assert(Current && "Attempted to increment an invalid iterator!");
584 Current += EntitySize;
588 ELFEntityIterator operator ++(int) {
589 ELFEntityIterator Tmp = *this;
595 const uint64_t EntitySize;
600 // Records for each version index the corresponding Verdef or Vernaux entry.
601 // This is filled the first time LoadVersionMap() is called.
602 class VersionMapEntry : public PointerIntPair<const void*, 1> {
604 // If the integer is 0, this is an Elf_Verdef*.
605 // If the integer is 1, this is an Elf_Vernaux*.
606 VersionMapEntry() : PointerIntPair<const void*, 1>(NULL, 0) { }
607 VersionMapEntry(const Elf_Verdef *verdef)
608 : PointerIntPair<const void*, 1>(verdef, 0) { }
609 VersionMapEntry(const Elf_Vernaux *vernaux)
610 : PointerIntPair<const void*, 1>(vernaux, 1) { }
611 bool isNull() const { return getPointer() == NULL; }
612 bool isVerdef() const { return !isNull() && getInt() == 0; }
613 bool isVernaux() const { return !isNull() && getInt() == 1; }
614 const Elf_Verdef *getVerdef() const {
615 return isVerdef() ? (const Elf_Verdef*)getPointer() : NULL;
617 const Elf_Vernaux *getVernaux() const {
618 return isVernaux() ? (const Elf_Vernaux*)getPointer() : NULL;
621 mutable SmallVector<VersionMapEntry, 16> VersionMap;
622 void LoadVersionDefs(const Elf_Shdr *sec) const;
623 void LoadVersionNeeds(const Elf_Shdr *ec) const;
624 void LoadVersionMap() const;
626 /// @brief Map sections to an array of relocation sections that reference
627 /// them sorted by section index.
628 RelocMap_t SectionRelocMap;
630 /// @brief Get the relocation section that contains \a Rel.
631 const Elf_Shdr *getRelSection(DataRefImpl Rel) const {
632 return getSection(Rel.w.b);
635 bool isRelocationHasAddend(DataRefImpl Rel) const;
637 const T *getEntry(uint16_t Section, uint32_t Entry) const;
639 const T *getEntry(const Elf_Shdr *Section, uint32_t Entry) const;
640 const Elf_Shdr *getSection(DataRefImpl index) const;
641 const Elf_Shdr *getSection(uint32_t index) const;
642 const Elf_Rel *getRel(DataRefImpl Rel) const;
643 const Elf_Rela *getRela(DataRefImpl Rela) const;
644 const char *getString(uint32_t section, uint32_t offset) const;
645 const char *getString(const Elf_Shdr *section, uint32_t offset) const;
646 error_code getSymbolVersion(const Elf_Shdr *section,
649 bool &IsDefault) const;
650 void VerifyStrTab(const Elf_Shdr *sh) const;
653 const Elf_Sym *getSymbol(DataRefImpl Symb) const; // FIXME: Should be private?
654 void validateSymbol(DataRefImpl Symb) const;
657 error_code getSymbolName(const Elf_Shdr *section,
659 StringRef &Res) const;
660 error_code getSectionName(const Elf_Shdr *section,
661 StringRef &Res) const;
662 const Elf_Dyn *getDyn(DataRefImpl DynData) const;
663 error_code getSymbolVersion(SymbolRef Symb, StringRef &Version,
664 bool &IsDefault) const;
665 uint64_t getSymbolIndex(const Elf_Sym *sym) const;
667 virtual error_code getSymbolNext(DataRefImpl Symb, SymbolRef &Res) const;
668 virtual error_code getSymbolName(DataRefImpl Symb, StringRef &Res) const;
669 virtual error_code getSymbolFileOffset(DataRefImpl Symb, uint64_t &Res) const;
670 virtual error_code getSymbolAddress(DataRefImpl Symb, uint64_t &Res) const;
671 virtual error_code getSymbolSize(DataRefImpl Symb, uint64_t &Res) const;
672 virtual error_code getSymbolNMTypeChar(DataRefImpl Symb, char &Res) const;
673 virtual error_code getSymbolFlags(DataRefImpl Symb, uint32_t &Res) const;
674 virtual error_code getSymbolType(DataRefImpl Symb, SymbolRef::Type &Res) const;
675 virtual error_code getSymbolSection(DataRefImpl Symb,
676 section_iterator &Res) const;
677 virtual error_code getSymbolValue(DataRefImpl Symb, uint64_t &Val) const;
679 friend class DynRefImpl<ELFT>;
680 virtual error_code getDynNext(DataRefImpl DynData, DynRef &Result) const;
682 virtual error_code getLibraryNext(DataRefImpl Data, LibraryRef &Result) const;
683 virtual error_code getLibraryPath(DataRefImpl Data, StringRef &Res) const;
685 virtual error_code getSectionNext(DataRefImpl Sec, SectionRef &Res) const;
686 virtual error_code getSectionName(DataRefImpl Sec, StringRef &Res) const;
687 virtual error_code getSectionAddress(DataRefImpl Sec, uint64_t &Res) const;
688 virtual error_code getSectionSize(DataRefImpl Sec, uint64_t &Res) const;
689 virtual error_code getSectionContents(DataRefImpl Sec, StringRef &Res) const;
690 virtual error_code getSectionAlignment(DataRefImpl Sec, uint64_t &Res) const;
691 virtual error_code isSectionText(DataRefImpl Sec, bool &Res) const;
692 virtual error_code isSectionData(DataRefImpl Sec, bool &Res) const;
693 virtual error_code isSectionBSS(DataRefImpl Sec, bool &Res) const;
694 virtual error_code isSectionRequiredForExecution(DataRefImpl Sec,
696 virtual error_code isSectionVirtual(DataRefImpl Sec, bool &Res) const;
697 virtual error_code isSectionZeroInit(DataRefImpl Sec, bool &Res) const;
698 virtual error_code isSectionReadOnlyData(DataRefImpl Sec, bool &Res) const;
699 virtual error_code sectionContainsSymbol(DataRefImpl Sec, DataRefImpl Symb,
701 virtual relocation_iterator getSectionRelBegin(DataRefImpl Sec) const;
702 virtual relocation_iterator getSectionRelEnd(DataRefImpl Sec) const;
704 virtual error_code getRelocationNext(DataRefImpl Rel,
705 RelocationRef &Res) const;
706 virtual error_code getRelocationAddress(DataRefImpl Rel,
707 uint64_t &Res) const;
708 virtual error_code getRelocationOffset(DataRefImpl Rel,
709 uint64_t &Res) const;
710 virtual error_code getRelocationSymbol(DataRefImpl Rel,
711 SymbolRef &Res) const;
712 virtual error_code getRelocationType(DataRefImpl Rel,
713 uint64_t &Res) const;
714 virtual error_code getRelocationTypeName(DataRefImpl Rel,
715 SmallVectorImpl<char> &Result) const;
716 virtual error_code getRelocationAdditionalInfo(DataRefImpl Rel,
718 virtual error_code getRelocationValueString(DataRefImpl Rel,
719 SmallVectorImpl<char> &Result) const;
722 ELFObjectFile(MemoryBuffer *Object, error_code &ec);
723 virtual symbol_iterator begin_symbols() const;
724 virtual symbol_iterator end_symbols() const;
726 virtual symbol_iterator begin_dynamic_symbols() const;
727 virtual symbol_iterator end_dynamic_symbols() const;
729 virtual section_iterator begin_sections() const;
730 virtual section_iterator end_sections() const;
732 virtual library_iterator begin_libraries_needed() const;
733 virtual library_iterator end_libraries_needed() const;
735 virtual dyn_iterator begin_dynamic_table() const;
736 virtual dyn_iterator end_dynamic_table() const;
738 typedef ELFEntityIterator<const Elf_Rela> Elf_Rela_Iter;
739 typedef ELFEntityIterator<const Elf_Rel> Elf_Rel_Iter;
741 Elf_Rela_Iter beginELFRela(const Elf_Shdr *sec) const {
742 return Elf_Rela_Iter(sec->sh_entsize,
743 (const char *)(base() + sec->sh_offset));
746 Elf_Rela_Iter endELFRela(const Elf_Shdr *sec) const {
747 return Elf_Rela_Iter(sec->sh_entsize, (const char *)
748 (base() + sec->sh_offset + sec->sh_size));
751 Elf_Rel_Iter beginELFRel(const Elf_Shdr *sec) const {
752 return Elf_Rel_Iter(sec->sh_entsize,
753 (const char *)(base() + sec->sh_offset));
756 Elf_Rel_Iter endELFRel(const Elf_Shdr *sec) const {
757 return Elf_Rel_Iter(sec->sh_entsize, (const char *)
758 (base() + sec->sh_offset + sec->sh_size));
761 /// \brief Iterate over program header table.
762 typedef ELFEntityIterator<const Elf_Phdr> Elf_Phdr_Iter;
764 Elf_Phdr_Iter begin_program_headers() const {
765 return Elf_Phdr_Iter(Header->e_phentsize,
766 (const char*)base() + Header->e_phoff);
769 Elf_Phdr_Iter end_program_headers() const {
770 return Elf_Phdr_Iter(Header->e_phentsize,
771 (const char*)base() +
773 (Header->e_phnum * Header->e_phentsize));
776 virtual uint8_t getBytesInAddress() const;
777 virtual StringRef getFileFormatName() const;
778 virtual StringRef getObjectType() const { return "ELF"; }
779 virtual unsigned getArch() const;
780 virtual StringRef getLoadName() const;
781 virtual error_code getSectionContents(const Elf_Shdr *sec,
782 StringRef &Res) const;
784 uint64_t getNumSections() const;
785 uint64_t getStringTableIndex() const;
786 ELF::Elf64_Word getSymbolTableIndex(const Elf_Sym *symb) const;
787 const Elf_Shdr *getSection(const Elf_Sym *symb) const;
788 const Elf_Shdr *getElfSection(section_iterator &It) const;
789 const Elf_Sym *getElfSymbol(symbol_iterator &It) const;
790 const Elf_Sym *getElfSymbol(uint32_t index) const;
792 // Methods for type inquiry through isa, cast, and dyn_cast
793 bool isDyldType() const { return isDyldELFObject; }
794 static inline bool classof(const Binary *v) {
795 return v->getType() == getELFType(static_cast<int>(ELFT::TargetEndianness)
796 == static_cast<int>(support::little),
801 // Iterate through the version definitions, and place each Elf_Verdef
802 // in the VersionMap according to its index.
804 void ELFObjectFile<ELFT>::LoadVersionDefs(const Elf_Shdr *sec) const {
805 unsigned vd_size = sec->sh_size; // Size of section in bytes
806 unsigned vd_count = sec->sh_info; // Number of Verdef entries
807 const char *sec_start = (const char*)base() + sec->sh_offset;
808 const char *sec_end = sec_start + vd_size;
809 // The first Verdef entry is at the start of the section.
810 const char *p = sec_start;
811 for (unsigned i = 0; i < vd_count; i++) {
812 if (p + sizeof(Elf_Verdef) > sec_end)
813 report_fatal_error("Section ended unexpectedly while scanning "
814 "version definitions.");
815 const Elf_Verdef *vd = reinterpret_cast<const Elf_Verdef *>(p);
816 if (vd->vd_version != ELF::VER_DEF_CURRENT)
817 report_fatal_error("Unexpected verdef version");
818 size_t index = vd->vd_ndx & ELF::VERSYM_VERSION;
819 if (index >= VersionMap.size())
820 VersionMap.resize(index+1);
821 VersionMap[index] = VersionMapEntry(vd);
826 // Iterate through the versions needed section, and place each Elf_Vernaux
827 // in the VersionMap according to its index.
829 void ELFObjectFile<ELFT>::LoadVersionNeeds(const Elf_Shdr *sec) const {
830 unsigned vn_size = sec->sh_size; // Size of section in bytes
831 unsigned vn_count = sec->sh_info; // Number of Verneed entries
832 const char *sec_start = (const char*)base() + sec->sh_offset;
833 const char *sec_end = sec_start + vn_size;
834 // The first Verneed entry is at the start of the section.
835 const char *p = sec_start;
836 for (unsigned i = 0; i < vn_count; i++) {
837 if (p + sizeof(Elf_Verneed) > sec_end)
838 report_fatal_error("Section ended unexpectedly while scanning "
839 "version needed records.");
840 const Elf_Verneed *vn = reinterpret_cast<const Elf_Verneed *>(p);
841 if (vn->vn_version != ELF::VER_NEED_CURRENT)
842 report_fatal_error("Unexpected verneed version");
843 // Iterate through the Vernaux entries
844 const char *paux = p + vn->vn_aux;
845 for (unsigned j = 0; j < vn->vn_cnt; j++) {
846 if (paux + sizeof(Elf_Vernaux) > sec_end)
847 report_fatal_error("Section ended unexpected while scanning auxiliary "
848 "version needed records.");
849 const Elf_Vernaux *vna = reinterpret_cast<const Elf_Vernaux *>(paux);
850 size_t index = vna->vna_other & ELF::VERSYM_VERSION;
851 if (index >= VersionMap.size())
852 VersionMap.resize(index+1);
853 VersionMap[index] = VersionMapEntry(vna);
854 paux += vna->vna_next;
861 void ELFObjectFile<ELFT>::LoadVersionMap() const {
862 // If there is no dynamic symtab or version table, there is nothing to do.
863 if (SymbolTableSections[0] == NULL || dot_gnu_version_sec == NULL)
866 // Has the VersionMap already been loaded?
867 if (VersionMap.size() > 0)
870 // The first two version indexes are reserved.
871 // Index 0 is LOCAL, index 1 is GLOBAL.
872 VersionMap.push_back(VersionMapEntry());
873 VersionMap.push_back(VersionMapEntry());
875 if (dot_gnu_version_d_sec)
876 LoadVersionDefs(dot_gnu_version_d_sec);
878 if (dot_gnu_version_r_sec)
879 LoadVersionNeeds(dot_gnu_version_r_sec);
883 void ELFObjectFile<ELFT>::validateSymbol(DataRefImpl Symb) const {
884 const Elf_Sym *symb = getSymbol(Symb);
885 const Elf_Shdr *SymbolTableSection = SymbolTableSections[Symb.d.b];
886 // FIXME: We really need to do proper error handling in the case of an invalid
887 // input file. Because we don't use exceptions, I think we'll just pass
888 // an error object around.
890 && SymbolTableSection
891 && symb >= (const Elf_Sym*)(base()
892 + SymbolTableSection->sh_offset)
893 && symb < (const Elf_Sym*)(base()
894 + SymbolTableSection->sh_offset
895 + SymbolTableSection->sh_size)))
896 // FIXME: Proper error handling.
897 report_fatal_error("Symb must point to a valid symbol!");
901 error_code ELFObjectFile<ELFT>::getSymbolNext(DataRefImpl Symb,
902 SymbolRef &Result) const {
903 validateSymbol(Symb);
904 const Elf_Shdr *SymbolTableSection = SymbolTableSections[Symb.d.b];
907 // Check to see if we are at the end of this symbol table.
908 if (Symb.d.a >= SymbolTableSection->getEntityCount()) {
909 // We are at the end. If there are other symbol tables, jump to them.
910 // If the symbol table is .dynsym, we are iterating dynamic symbols,
911 // and there is only one table of these.
914 Symb.d.a = 1; // The 0th symbol in ELF is fake.
916 // Otherwise return the terminator.
917 if (Symb.d.b == 0 || Symb.d.b >= SymbolTableSections.size()) {
918 Symb.d.a = std::numeric_limits<uint32_t>::max();
919 Symb.d.b = std::numeric_limits<uint32_t>::max();
923 Result = SymbolRef(Symb, this);
924 return object_error::success;
928 error_code ELFObjectFile<ELFT>::getSymbolName(DataRefImpl Symb,
929 StringRef &Result) const {
930 validateSymbol(Symb);
931 const Elf_Sym *symb = getSymbol(Symb);
932 return getSymbolName(SymbolTableSections[Symb.d.b], symb, Result);
936 error_code ELFObjectFile<ELFT>::getSymbolVersion(SymbolRef SymRef,
938 bool &IsDefault) const {
939 DataRefImpl Symb = SymRef.getRawDataRefImpl();
940 validateSymbol(Symb);
941 const Elf_Sym *symb = getSymbol(Symb);
942 return getSymbolVersion(SymbolTableSections[Symb.d.b], symb,
947 ELF::Elf64_Word ELFObjectFile<ELFT>
948 ::getSymbolTableIndex(const Elf_Sym *symb) const {
949 if (symb->st_shndx == ELF::SHN_XINDEX)
950 return ExtendedSymbolTable.lookup(symb);
951 return symb->st_shndx;
955 const typename ELFObjectFile<ELFT>::Elf_Shdr *
956 ELFObjectFile<ELFT>::getSection(const Elf_Sym *symb) const {
957 if (symb->st_shndx == ELF::SHN_XINDEX)
958 return getSection(ExtendedSymbolTable.lookup(symb));
959 if (symb->st_shndx >= ELF::SHN_LORESERVE)
961 return getSection(symb->st_shndx);
965 const typename ELFObjectFile<ELFT>::Elf_Shdr *
966 ELFObjectFile<ELFT>::getElfSection(section_iterator &It) const {
967 llvm::object::DataRefImpl ShdrRef = It->getRawDataRefImpl();
968 return reinterpret_cast<const Elf_Shdr *>(ShdrRef.p);
972 const typename ELFObjectFile<ELFT>::Elf_Sym *
973 ELFObjectFile<ELFT>::getElfSymbol(symbol_iterator &It) const {
974 return getSymbol(It->getRawDataRefImpl());
978 const typename ELFObjectFile<ELFT>::Elf_Sym *
979 ELFObjectFile<ELFT>::getElfSymbol(uint32_t index) const {
980 DataRefImpl SymbolData;
981 SymbolData.d.a = index;
983 return getSymbol(SymbolData);
987 error_code ELFObjectFile<ELFT>::getSymbolFileOffset(DataRefImpl Symb,
988 uint64_t &Result) const {
989 validateSymbol(Symb);
990 const Elf_Sym *symb = getSymbol(Symb);
991 const Elf_Shdr *Section;
992 switch (getSymbolTableIndex(symb)) {
993 case ELF::SHN_COMMON:
994 // Unintialized symbols have no offset in the object file
996 Result = UnknownAddressOrSize;
997 return object_error::success;
999 Result = symb->st_value;
1000 return object_error::success;
1001 default: Section = getSection(symb);
1004 switch (symb->getType()) {
1005 case ELF::STT_SECTION:
1006 Result = Section ? Section->sh_addr : UnknownAddressOrSize;
1007 return object_error::success;
1009 case ELF::STT_OBJECT:
1010 case ELF::STT_NOTYPE:
1011 Result = symb->st_value +
1012 (Section ? Section->sh_offset : 0);
1013 return object_error::success;
1015 Result = UnknownAddressOrSize;
1016 return object_error::success;
1020 template<class ELFT>
1021 error_code ELFObjectFile<ELFT>::getSymbolAddress(DataRefImpl Symb,
1022 uint64_t &Result) const {
1023 validateSymbol(Symb);
1024 const Elf_Sym *symb = getSymbol(Symb);
1025 const Elf_Shdr *Section;
1026 switch (getSymbolTableIndex(symb)) {
1027 case ELF::SHN_COMMON:
1028 case ELF::SHN_UNDEF:
1029 Result = UnknownAddressOrSize;
1030 return object_error::success;
1032 Result = symb->st_value;
1033 return object_error::success;
1034 default: Section = getSection(symb);
1037 switch (symb->getType()) {
1038 case ELF::STT_SECTION:
1039 Result = Section ? Section->sh_addr : UnknownAddressOrSize;
1040 return object_error::success;
1042 case ELF::STT_OBJECT:
1043 case ELF::STT_NOTYPE:
1045 switch(Header->e_type) {
1048 IsRelocatable = false;
1051 IsRelocatable = true;
1053 Result = symb->st_value;
1054 if (IsRelocatable && Section != 0)
1055 Result += Section->sh_addr;
1056 return object_error::success;
1058 Result = UnknownAddressOrSize;
1059 return object_error::success;
1063 template<class ELFT>
1064 error_code ELFObjectFile<ELFT>::getSymbolSize(DataRefImpl Symb,
1065 uint64_t &Result) const {
1066 validateSymbol(Symb);
1067 const Elf_Sym *symb = getSymbol(Symb);
1068 if (symb->st_size == 0)
1069 Result = UnknownAddressOrSize;
1070 Result = symb->st_size;
1071 return object_error::success;
1074 template<class ELFT>
1075 error_code ELFObjectFile<ELFT>::getSymbolNMTypeChar(DataRefImpl Symb,
1076 char &Result) const {
1077 validateSymbol(Symb);
1078 const Elf_Sym *symb = getSymbol(Symb);
1079 const Elf_Shdr *Section = getSection(symb);
1084 switch (Section->sh_type) {
1085 case ELF::SHT_PROGBITS:
1086 case ELF::SHT_DYNAMIC:
1087 switch (Section->sh_flags) {
1088 case (ELF::SHF_ALLOC | ELF::SHF_EXECINSTR):
1090 case (ELF::SHF_ALLOC | ELF::SHF_WRITE):
1092 case ELF::SHF_ALLOC:
1093 case (ELF::SHF_ALLOC | ELF::SHF_MERGE):
1094 case (ELF::SHF_ALLOC | ELF::SHF_MERGE | ELF::SHF_STRINGS):
1098 case ELF::SHT_NOBITS: ret = 'b';
1102 switch (getSymbolTableIndex(symb)) {
1103 case ELF::SHN_UNDEF:
1107 case ELF::SHN_ABS: ret = 'a'; break;
1108 case ELF::SHN_COMMON: ret = 'c'; break;
1111 switch (symb->getBinding()) {
1112 case ELF::STB_GLOBAL: ret = ::toupper(ret); break;
1114 if (getSymbolTableIndex(symb) == ELF::SHN_UNDEF)
1117 if (symb->getType() == ELF::STT_OBJECT)
1123 if (ret == '?' && symb->getType() == ELF::STT_SECTION) {
1125 if (error_code ec = getSymbolName(Symb, name))
1127 Result = StringSwitch<char>(name)
1128 .StartsWith(".debug", 'N')
1129 .StartsWith(".note", 'n')
1131 return object_error::success;
1135 return object_error::success;
1138 template<class ELFT>
1139 error_code ELFObjectFile<ELFT>::getSymbolType(DataRefImpl Symb,
1140 SymbolRef::Type &Result) const {
1141 validateSymbol(Symb);
1142 const Elf_Sym *symb = getSymbol(Symb);
1144 switch (symb->getType()) {
1145 case ELF::STT_NOTYPE:
1146 Result = SymbolRef::ST_Unknown;
1148 case ELF::STT_SECTION:
1149 Result = SymbolRef::ST_Debug;
1152 Result = SymbolRef::ST_File;
1155 Result = SymbolRef::ST_Function;
1157 case ELF::STT_OBJECT:
1158 case ELF::STT_COMMON:
1160 Result = SymbolRef::ST_Data;
1163 Result = SymbolRef::ST_Other;
1166 return object_error::success;
1169 template<class ELFT>
1170 error_code ELFObjectFile<ELFT>::getSymbolFlags(DataRefImpl Symb,
1171 uint32_t &Result) const {
1172 validateSymbol(Symb);
1173 const Elf_Sym *symb = getSymbol(Symb);
1175 Result = SymbolRef::SF_None;
1177 if (symb->getBinding() != ELF::STB_LOCAL)
1178 Result |= SymbolRef::SF_Global;
1180 if (symb->getBinding() == ELF::STB_WEAK)
1181 Result |= SymbolRef::SF_Weak;
1183 if (symb->st_shndx == ELF::SHN_ABS)
1184 Result |= SymbolRef::SF_Absolute;
1186 if (symb->getType() == ELF::STT_FILE ||
1187 symb->getType() == ELF::STT_SECTION)
1188 Result |= SymbolRef::SF_FormatSpecific;
1190 if (getSymbolTableIndex(symb) == ELF::SHN_UNDEF)
1191 Result |= SymbolRef::SF_Undefined;
1193 if (symb->getType() == ELF::STT_COMMON ||
1194 getSymbolTableIndex(symb) == ELF::SHN_COMMON)
1195 Result |= SymbolRef::SF_Common;
1197 if (symb->getType() == ELF::STT_TLS)
1198 Result |= SymbolRef::SF_ThreadLocal;
1200 return object_error::success;
1203 template<class ELFT>
1204 error_code ELFObjectFile<ELFT>::getSymbolSection(DataRefImpl Symb,
1205 section_iterator &Res) const {
1206 validateSymbol(Symb);
1207 const Elf_Sym *symb = getSymbol(Symb);
1208 const Elf_Shdr *sec = getSection(symb);
1210 Res = end_sections();
1213 Sec.p = reinterpret_cast<intptr_t>(sec);
1214 Res = section_iterator(SectionRef(Sec, this));
1216 return object_error::success;
1219 template<class ELFT>
1220 error_code ELFObjectFile<ELFT>::getSymbolValue(DataRefImpl Symb,
1221 uint64_t &Val) const {
1222 validateSymbol(Symb);
1223 const Elf_Sym *symb = getSymbol(Symb);
1224 Val = symb->st_value;
1225 return object_error::success;
1228 template<class ELFT>
1229 error_code ELFObjectFile<ELFT>::getSectionNext(DataRefImpl Sec,
1230 SectionRef &Result) const {
1231 const uint8_t *sec = reinterpret_cast<const uint8_t *>(Sec.p);
1232 sec += Header->e_shentsize;
1233 Sec.p = reinterpret_cast<intptr_t>(sec);
1234 Result = SectionRef(Sec, this);
1235 return object_error::success;
1238 template<class ELFT>
1239 error_code ELFObjectFile<ELFT>::getSectionName(DataRefImpl Sec,
1240 StringRef &Result) const {
1241 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1242 Result = StringRef(getString(dot_shstrtab_sec, sec->sh_name));
1243 return object_error::success;
1246 template<class ELFT>
1247 error_code ELFObjectFile<ELFT>::getSectionAddress(DataRefImpl Sec,
1248 uint64_t &Result) const {
1249 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1250 Result = sec->sh_addr;
1251 return object_error::success;
1254 template<class ELFT>
1255 error_code ELFObjectFile<ELFT>::getSectionSize(DataRefImpl Sec,
1256 uint64_t &Result) const {
1257 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1258 Result = sec->sh_size;
1259 return object_error::success;
1262 template<class ELFT>
1263 error_code ELFObjectFile<ELFT>::getSectionContents(DataRefImpl Sec,
1264 StringRef &Result) const {
1265 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1266 const char *start = (const char*)base() + sec->sh_offset;
1267 Result = StringRef(start, sec->sh_size);
1268 return object_error::success;
1271 template<class ELFT>
1272 error_code ELFObjectFile<ELFT>::getSectionContents(const Elf_Shdr *Sec,
1273 StringRef &Result) const {
1274 const char *start = (const char*)base() + Sec->sh_offset;
1275 Result = StringRef(start, Sec->sh_size);
1276 return object_error::success;
1279 template<class ELFT>
1280 error_code ELFObjectFile<ELFT>::getSectionAlignment(DataRefImpl Sec,
1281 uint64_t &Result) const {
1282 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1283 Result = sec->sh_addralign;
1284 return object_error::success;
1287 template<class ELFT>
1288 error_code ELFObjectFile<ELFT>::isSectionText(DataRefImpl Sec,
1289 bool &Result) const {
1290 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1291 if (sec->sh_flags & ELF::SHF_EXECINSTR)
1295 return object_error::success;
1298 template<class ELFT>
1299 error_code ELFObjectFile<ELFT>::isSectionData(DataRefImpl Sec,
1300 bool &Result) const {
1301 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1302 if (sec->sh_flags & (ELF::SHF_ALLOC | ELF::SHF_WRITE)
1303 && sec->sh_type == ELF::SHT_PROGBITS)
1307 return object_error::success;
1310 template<class ELFT>
1311 error_code ELFObjectFile<ELFT>::isSectionBSS(DataRefImpl Sec,
1312 bool &Result) const {
1313 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1314 if (sec->sh_flags & (ELF::SHF_ALLOC | ELF::SHF_WRITE)
1315 && sec->sh_type == ELF::SHT_NOBITS)
1319 return object_error::success;
1322 template<class ELFT>
1323 error_code ELFObjectFile<ELFT>::isSectionRequiredForExecution(
1324 DataRefImpl Sec, bool &Result) const {
1325 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1326 if (sec->sh_flags & ELF::SHF_ALLOC)
1330 return object_error::success;
1333 template<class ELFT>
1334 error_code ELFObjectFile<ELFT>::isSectionVirtual(DataRefImpl Sec,
1335 bool &Result) const {
1336 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1337 if (sec->sh_type == ELF::SHT_NOBITS)
1341 return object_error::success;
1344 template<class ELFT>
1345 error_code ELFObjectFile<ELFT>::isSectionZeroInit(DataRefImpl Sec,
1346 bool &Result) const {
1347 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1348 // For ELF, all zero-init sections are virtual (that is, they occupy no space
1349 // in the object image) and vice versa.
1350 Result = sec->sh_type == ELF::SHT_NOBITS;
1351 return object_error::success;
1354 template<class ELFT>
1355 error_code ELFObjectFile<ELFT>::isSectionReadOnlyData(DataRefImpl Sec,
1356 bool &Result) const {
1357 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1358 if (sec->sh_flags & ELF::SHF_WRITE || sec->sh_flags & ELF::SHF_EXECINSTR)
1362 return object_error::success;
1365 template<class ELFT>
1366 error_code ELFObjectFile<ELFT>::sectionContainsSymbol(DataRefImpl Sec,
1368 bool &Result) const {
1369 // FIXME: Unimplemented.
1371 return object_error::success;
1374 template<class ELFT>
1376 ELFObjectFile<ELFT>::getSectionRelBegin(DataRefImpl Sec) const {
1377 DataRefImpl RelData;
1378 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1379 typename RelocMap_t::const_iterator ittr = SectionRelocMap.find(sec);
1380 if (sec != 0 && ittr != SectionRelocMap.end()) {
1381 RelData.w.a = getSection(ittr->second[0])->sh_info;
1382 RelData.w.b = ittr->second[0];
1385 return relocation_iterator(RelocationRef(RelData, this));
1388 template<class ELFT>
1390 ELFObjectFile<ELFT>::getSectionRelEnd(DataRefImpl Sec) const {
1391 DataRefImpl RelData;
1392 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1393 typename RelocMap_t::const_iterator ittr = SectionRelocMap.find(sec);
1394 if (sec != 0 && ittr != SectionRelocMap.end()) {
1395 // Get the index of the last relocation section for this section.
1396 std::size_t relocsecindex = ittr->second[ittr->second.size() - 1];
1397 const Elf_Shdr *relocsec = getSection(relocsecindex);
1398 RelData.w.a = relocsec->sh_info;
1399 RelData.w.b = relocsecindex;
1400 RelData.w.c = relocsec->sh_size / relocsec->sh_entsize;
1402 return relocation_iterator(RelocationRef(RelData, this));
1406 template<class ELFT>
1407 error_code ELFObjectFile<ELFT>::getRelocationNext(DataRefImpl Rel,
1408 RelocationRef &Result) const {
1410 const Elf_Shdr *relocsec = getSection(Rel.w.b);
1411 if (Rel.w.c >= (relocsec->sh_size / relocsec->sh_entsize)) {
1412 // We have reached the end of the relocations for this section. See if there
1413 // is another relocation section.
1414 typename RelocMap_t::mapped_type relocseclist =
1415 SectionRelocMap.lookup(getSection(Rel.w.a));
1417 // Do a binary search for the current reloc section index (which must be
1418 // present). Then get the next one.
1419 typename RelocMap_t::mapped_type::const_iterator loc =
1420 std::lower_bound(relocseclist.begin(), relocseclist.end(), Rel.w.b);
1423 // If there is no next one, don't do anything. The ++Rel.w.c above sets Rel
1424 // to the end iterator.
1425 if (loc != relocseclist.end()) {
1430 Result = RelocationRef(Rel, this);
1431 return object_error::success;
1434 template<class ELFT>
1435 error_code ELFObjectFile<ELFT>::getRelocationSymbol(DataRefImpl Rel,
1436 SymbolRef &Result) const {
1438 const Elf_Shdr *sec = getSection(Rel.w.b);
1439 switch (sec->sh_type) {
1441 report_fatal_error("Invalid section type in Rel!");
1442 case ELF::SHT_REL : {
1443 symbolIdx = getRel(Rel)->getSymbol();
1446 case ELF::SHT_RELA : {
1447 symbolIdx = getRela(Rel)->getSymbol();
1451 DataRefImpl SymbolData;
1452 IndexMap_t::const_iterator it = SymbolTableSectionsIndexMap.find(sec->sh_link);
1453 if (it == SymbolTableSectionsIndexMap.end())
1454 report_fatal_error("Relocation symbol table not found!");
1455 SymbolData.d.a = symbolIdx;
1456 SymbolData.d.b = it->second;
1457 Result = SymbolRef(SymbolData, this);
1458 return object_error::success;
1461 template<class ELFT>
1462 error_code ELFObjectFile<ELFT>::getRelocationAddress(DataRefImpl Rel,
1463 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 offset = getRel(Rel)->r_offset;
1473 case ELF::SHT_RELA : {
1474 offset = getRela(Rel)->r_offset;
1480 return object_error::success;
1483 template<class ELFT>
1484 error_code ELFObjectFile<ELFT>::getRelocationOffset(DataRefImpl Rel,
1485 uint64_t &Result) const {
1487 const Elf_Shdr *sec = getSection(Rel.w.b);
1488 switch (sec->sh_type) {
1490 report_fatal_error("Invalid section type in Rel!");
1491 case ELF::SHT_REL : {
1492 offset = getRel(Rel)->r_offset;
1495 case ELF::SHT_RELA : {
1496 offset = getRela(Rel)->r_offset;
1501 Result = offset - sec->sh_addr;
1502 return object_error::success;
1505 template<class ELFT>
1506 error_code ELFObjectFile<ELFT>::getRelocationType(DataRefImpl Rel,
1507 uint64_t &Result) const {
1508 const Elf_Shdr *sec = getSection(Rel.w.b);
1509 switch (sec->sh_type) {
1511 report_fatal_error("Invalid section type in Rel!");
1512 case ELF::SHT_REL : {
1513 Result = getRel(Rel)->getType();
1516 case ELF::SHT_RELA : {
1517 Result = getRela(Rel)->getType();
1521 return object_error::success;
1524 #define LLVM_ELF_SWITCH_RELOC_TYPE_NAME(enum) \
1525 case ELF::enum: res = #enum; break;
1527 template<class ELFT>
1528 error_code ELFObjectFile<ELFT>::getRelocationTypeName(
1529 DataRefImpl Rel, SmallVectorImpl<char> &Result) const {
1530 const Elf_Shdr *sec = getSection(Rel.w.b);
1533 switch (sec->sh_type) {
1535 return object_error::parse_failed;
1536 case ELF::SHT_REL : {
1537 type = getRel(Rel)->getType();
1540 case ELF::SHT_RELA : {
1541 type = getRela(Rel)->getType();
1545 switch (Header->e_machine) {
1546 case ELF::EM_X86_64:
1548 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_NONE);
1549 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_64);
1550 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC32);
1551 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOT32);
1552 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PLT32);
1553 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_COPY);
1554 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GLOB_DAT);
1555 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_JUMP_SLOT);
1556 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_RELATIVE);
1557 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPCREL);
1558 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_32);
1559 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_32S);
1560 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_16);
1561 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC16);
1562 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_8);
1563 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC8);
1564 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_DTPMOD64);
1565 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_DTPOFF64);
1566 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TPOFF64);
1567 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSGD);
1568 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSLD);
1569 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_DTPOFF32);
1570 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTTPOFF);
1571 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TPOFF32);
1572 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC64);
1573 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTOFF64);
1574 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPC32);
1575 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_SIZE32);
1576 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_SIZE64);
1577 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPC32_TLSDESC);
1578 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSDESC_CALL);
1579 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSDESC);
1586 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_NONE);
1587 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_32);
1588 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PC32);
1589 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GOT32);
1590 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PLT32);
1591 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_COPY);
1592 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GLOB_DAT);
1593 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_JUMP_SLOT);
1594 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_RELATIVE);
1595 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GOTOFF);
1596 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GOTPC);
1597 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_32PLT);
1598 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_TPOFF);
1599 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_IE);
1600 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GOTIE);
1601 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LE);
1602 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD);
1603 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM);
1604 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_16);
1605 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PC16);
1606 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_8);
1607 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PC8);
1608 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_32);
1609 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_PUSH);
1610 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_CALL);
1611 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_POP);
1612 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_32);
1613 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_PUSH);
1614 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_CALL);
1615 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_POP);
1616 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDO_32);
1617 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_IE_32);
1618 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LE_32);
1619 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DTPMOD32);
1620 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DTPOFF32);
1621 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_TPOFF32);
1622 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GOTDESC);
1623 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DESC_CALL);
1624 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DESC);
1625 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_IRELATIVE);
1632 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_NONE);
1633 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PC24);
1634 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS32);
1635 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_REL32);
1636 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_PC_G0);
1637 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS16);
1638 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS12);
1639 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_ABS5);
1640 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS8);
1641 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_SBREL32);
1642 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_CALL);
1643 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_PC8);
1644 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_BREL_ADJ);
1645 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_DESC);
1646 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_SWI8);
1647 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_XPC25);
1648 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_XPC22);
1649 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_DTPMOD32);
1650 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_DTPOFF32);
1651 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_TPOFF32);
1652 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_COPY);
1653 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GLOB_DAT);
1654 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_JUMP_SLOT);
1655 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_RELATIVE);
1656 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOTOFF32);
1657 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_BASE_PREL);
1658 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOT_BREL);
1659 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PLT32);
1660 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_CALL);
1661 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_JUMP24);
1662 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP24);
1663 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_BASE_ABS);
1664 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PCREL_7_0);
1665 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PCREL_15_8);
1666 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PCREL_23_15);
1667 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_SBREL_11_0_NC);
1668 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SBREL_19_12_NC);
1669 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SBREL_27_20_CK);
1670 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TARGET1);
1671 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_SBREL31);
1672 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_V4BX);
1673 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TARGET2);
1674 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PREL31);
1675 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVW_ABS_NC);
1676 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVT_ABS);
1677 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVW_PREL_NC);
1678 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVT_PREL);
1679 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVW_ABS_NC);
1680 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVT_ABS);
1681 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVW_PREL_NC);
1682 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVT_PREL);
1683 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP19);
1684 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP6);
1685 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_ALU_PREL_11_0);
1686 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_PC12);
1687 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS32_NOI);
1688 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_REL32_NOI);
1689 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G0_NC);
1690 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G0);
1691 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G1_NC);
1692 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G1);
1693 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G2);
1694 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_PC_G1);
1695 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_PC_G2);
1696 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_PC_G0);
1697 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_PC_G1);
1698 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_PC_G2);
1699 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_PC_G0);
1700 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_PC_G1);
1701 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_PC_G2);
1702 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G0_NC);
1703 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G0);
1704 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G1_NC);
1705 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G1);
1706 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G2);
1707 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_SB_G0);
1708 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_SB_G1);
1709 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_SB_G2);
1710 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_SB_G0);
1711 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_SB_G1);
1712 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_SB_G2);
1713 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_SB_G0);
1714 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_SB_G1);
1715 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_SB_G2);
1716 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVW_BREL_NC);
1717 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVT_BREL);
1718 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVW_BREL);
1719 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVW_BREL_NC);
1720 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVT_BREL);
1721 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVW_BREL);
1722 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_GOTDESC);
1723 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_CALL);
1724 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_DESCSEQ);
1725 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_TLS_CALL);
1726 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PLT32_ABS);
1727 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOT_ABS);
1728 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOT_PREL);
1729 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOT_BREL12);
1730 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOTOFF12);
1731 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOTRELAX);
1732 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GNU_VTENTRY);
1733 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GNU_VTINHERIT);
1734 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP11);
1735 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP8);
1736 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_GD32);
1737 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LDM32);
1738 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LDO32);
1739 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_IE32);
1740 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LE32);
1741 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LDO12);
1742 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LE12);
1743 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_IE12GP);
1744 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_0);
1745 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_1);
1746 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_2);
1747 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_3);
1748 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_4);
1749 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_5);
1750 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_6);
1751 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_7);
1752 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_8);
1753 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_9);
1754 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_10);
1755 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_11);
1756 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_12);
1757 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_13);
1758 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_14);
1759 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_15);
1760 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ME_TOO);
1761 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_TLS_DESCSEQ16);
1762 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_TLS_DESCSEQ32);
1767 case ELF::EM_HEXAGON:
1769 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_NONE);
1770 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B22_PCREL);
1771 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B15_PCREL);
1772 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B7_PCREL);
1773 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_LO16);
1774 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_HI16);
1775 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_32);
1776 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_16);
1777 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_8);
1778 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GPREL16_0);
1779 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GPREL16_1);
1780 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GPREL16_2);
1781 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GPREL16_3);
1782 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_HL16);
1783 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B13_PCREL);
1784 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B9_PCREL);
1785 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B32_PCREL_X);
1786 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_32_6_X);
1787 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B22_PCREL_X);
1788 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B15_PCREL_X);
1789 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B13_PCREL_X);
1790 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B9_PCREL_X);
1791 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B7_PCREL_X);
1792 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_16_X);
1793 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_12_X);
1794 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_11_X);
1795 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_10_X);
1796 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_9_X);
1797 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_8_X);
1798 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_7_X);
1799 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_6_X);
1800 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_32_PCREL);
1801 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_COPY);
1802 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GLOB_DAT);
1803 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_JMP_SLOT);
1804 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_RELATIVE);
1805 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_PLT_B22_PCREL);
1806 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_LO16);
1807 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_HI16);
1808 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_32);
1809 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_LO16);
1810 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_HI16);
1811 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_32);
1812 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_16);
1813 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPMOD_32);
1814 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_LO16);
1815 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_HI16);
1816 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_32);
1817 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_16);
1818 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_PLT_B22_PCREL);
1819 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_LO16);
1820 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_HI16);
1821 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_32);
1822 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_16);
1823 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_LO16);
1824 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_HI16);
1825 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_32);
1826 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_LO16);
1827 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_HI16);
1828 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_32);
1829 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_16);
1830 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_LO16);
1831 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_HI16);
1832 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_32);
1833 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_16);
1834 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_6_PCREL_X);
1835 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_32_6_X);
1836 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_16_X);
1837 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_11_X);
1838 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_32_6_X);
1839 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_16_X);
1840 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_11_X);
1841 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_32_6_X);
1842 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_16_X);
1843 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_11_X);
1844 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_32_6_X);
1845 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_16_X);
1846 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_11_X);
1847 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_32_6_X);
1848 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_16_X);
1849 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_32_6_X);
1850 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_16_X);
1851 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_11_X);
1852 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_32_6_X);
1853 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_16_X);
1854 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_11_X);
1862 Result.append(res.begin(), res.end());
1863 return object_error::success;
1866 #undef LLVM_ELF_SWITCH_RELOC_TYPE_NAME
1868 template<class ELFT>
1869 error_code ELFObjectFile<ELFT>::getRelocationAdditionalInfo(
1870 DataRefImpl Rel, int64_t &Result) const {
1871 const Elf_Shdr *sec = getSection(Rel.w.b);
1872 switch (sec->sh_type) {
1874 report_fatal_error("Invalid section type in Rel!");
1875 case ELF::SHT_REL : {
1877 return object_error::success;
1879 case ELF::SHT_RELA : {
1880 Result = getRela(Rel)->r_addend;
1881 return object_error::success;
1886 template<class ELFT>
1887 error_code ELFObjectFile<ELFT>::getRelocationValueString(
1888 DataRefImpl Rel, SmallVectorImpl<char> &Result) const {
1889 const Elf_Shdr *sec = getSection(Rel.w.b);
1893 uint16_t symbol_index = 0;
1894 switch (sec->sh_type) {
1896 return object_error::parse_failed;
1897 case ELF::SHT_REL: {
1898 type = getRel(Rel)->getType();
1899 symbol_index = getRel(Rel)->getSymbol();
1900 // TODO: Read implicit addend from section data.
1903 case ELF::SHT_RELA: {
1904 type = getRela(Rel)->getType();
1905 symbol_index = getRela(Rel)->getSymbol();
1906 addend = getRela(Rel)->r_addend;
1910 const Elf_Sym *symb = getEntry<Elf_Sym>(sec->sh_link, symbol_index);
1912 if (error_code ec = getSymbolName(getSection(sec->sh_link), symb, symname))
1914 switch (Header->e_machine) {
1915 case ELF::EM_X86_64:
1917 case ELF::R_X86_64_PC8:
1918 case ELF::R_X86_64_PC16:
1919 case ELF::R_X86_64_PC32: {
1921 raw_string_ostream fmt(fmtbuf);
1922 fmt << symname << (addend < 0 ? "" : "+") << addend << "-P";
1924 Result.append(fmtbuf.begin(), fmtbuf.end());
1927 case ELF::R_X86_64_8:
1928 case ELF::R_X86_64_16:
1929 case ELF::R_X86_64_32:
1930 case ELF::R_X86_64_32S:
1931 case ELF::R_X86_64_64: {
1933 raw_string_ostream fmt(fmtbuf);
1934 fmt << symname << (addend < 0 ? "" : "+") << addend;
1936 Result.append(fmtbuf.begin(), fmtbuf.end());
1944 case ELF::EM_HEXAGON:
1951 Result.append(res.begin(), res.end());
1952 return object_error::success;
1955 // Verify that the last byte in the string table in a null.
1956 template<class ELFT>
1957 void ELFObjectFile<ELFT>::VerifyStrTab(const Elf_Shdr *sh) const {
1958 const char *strtab = (const char*)base() + sh->sh_offset;
1959 if (strtab[sh->sh_size - 1] != 0)
1960 // FIXME: Proper error handling.
1961 report_fatal_error("String table must end with a null terminator!");
1964 template<class ELFT>
1965 ELFObjectFile<ELFT>::ELFObjectFile(MemoryBuffer *Object, error_code &ec)
1966 : ObjectFile(getELFType(
1967 static_cast<endianness>(ELFT::TargetEndianness) == support::little,
1971 , isDyldELFObject(false)
1972 , SectionHeaderTable(0)
1973 , dot_shstrtab_sec(0)
1976 , dot_dynamic_sec(0)
1977 , dot_gnu_version_sec(0)
1978 , dot_gnu_version_r_sec(0)
1979 , dot_gnu_version_d_sec(0)
1983 const uint64_t FileSize = Data->getBufferSize();
1985 if (sizeof(Elf_Ehdr) > FileSize)
1986 // FIXME: Proper error handling.
1987 report_fatal_error("File too short!");
1989 Header = reinterpret_cast<const Elf_Ehdr *>(base());
1991 if (Header->e_shoff == 0)
1994 const uint64_t SectionTableOffset = Header->e_shoff;
1996 if (SectionTableOffset + sizeof(Elf_Shdr) > FileSize)
1997 // FIXME: Proper error handling.
1998 report_fatal_error("Section header table goes past end of file!");
2000 // The getNumSections() call below depends on SectionHeaderTable being set.
2001 SectionHeaderTable =
2002 reinterpret_cast<const Elf_Shdr *>(base() + SectionTableOffset);
2003 const uint64_t SectionTableSize = getNumSections() * Header->e_shentsize;
2005 if (SectionTableOffset + SectionTableSize > FileSize)
2006 // FIXME: Proper error handling.
2007 report_fatal_error("Section table goes past end of file!");
2009 // To find the symbol tables we walk the section table to find SHT_SYMTAB.
2010 const Elf_Shdr* SymbolTableSectionHeaderIndex = 0;
2011 const Elf_Shdr* sh = SectionHeaderTable;
2013 // Reserve SymbolTableSections[0] for .dynsym
2014 SymbolTableSections.push_back(NULL);
2016 for (uint64_t i = 0, e = getNumSections(); i != e; ++i) {
2017 switch (sh->sh_type) {
2018 case ELF::SHT_SYMTAB_SHNDX: {
2019 if (SymbolTableSectionHeaderIndex)
2020 // FIXME: Proper error handling.
2021 report_fatal_error("More than one .symtab_shndx!");
2022 SymbolTableSectionHeaderIndex = sh;
2025 case ELF::SHT_SYMTAB: {
2026 SymbolTableSectionsIndexMap[i] = SymbolTableSections.size();
2027 SymbolTableSections.push_back(sh);
2030 case ELF::SHT_DYNSYM: {
2031 if (SymbolTableSections[0] != NULL)
2032 // FIXME: Proper error handling.
2033 report_fatal_error("More than one .dynsym!");
2034 SymbolTableSectionsIndexMap[i] = 0;
2035 SymbolTableSections[0] = sh;
2039 case ELF::SHT_RELA: {
2040 SectionRelocMap[getSection(sh->sh_info)].push_back(i);
2043 case ELF::SHT_DYNAMIC: {
2044 if (dot_dynamic_sec != NULL)
2045 // FIXME: Proper error handling.
2046 report_fatal_error("More than one .dynamic!");
2047 dot_dynamic_sec = sh;
2050 case ELF::SHT_GNU_versym: {
2051 if (dot_gnu_version_sec != NULL)
2052 // FIXME: Proper error handling.
2053 report_fatal_error("More than one .gnu.version section!");
2054 dot_gnu_version_sec = sh;
2057 case ELF::SHT_GNU_verdef: {
2058 if (dot_gnu_version_d_sec != NULL)
2059 // FIXME: Proper error handling.
2060 report_fatal_error("More than one .gnu.version_d section!");
2061 dot_gnu_version_d_sec = sh;
2064 case ELF::SHT_GNU_verneed: {
2065 if (dot_gnu_version_r_sec != NULL)
2066 // FIXME: Proper error handling.
2067 report_fatal_error("More than one .gnu.version_r section!");
2068 dot_gnu_version_r_sec = sh;
2075 // Sort section relocation lists by index.
2076 for (typename RelocMap_t::iterator i = SectionRelocMap.begin(),
2077 e = SectionRelocMap.end(); i != e; ++i) {
2078 std::sort(i->second.begin(), i->second.end());
2081 // Get string table sections.
2082 dot_shstrtab_sec = getSection(getStringTableIndex());
2083 if (dot_shstrtab_sec) {
2084 // Verify that the last byte in the string table in a null.
2085 VerifyStrTab(dot_shstrtab_sec);
2088 // Merge this into the above loop.
2089 for (const char *i = reinterpret_cast<const char *>(SectionHeaderTable),
2090 *e = i + getNumSections() * Header->e_shentsize;
2091 i != e; i += Header->e_shentsize) {
2092 const Elf_Shdr *sh = reinterpret_cast<const Elf_Shdr*>(i);
2093 if (sh->sh_type == ELF::SHT_STRTAB) {
2094 StringRef SectionName(getString(dot_shstrtab_sec, sh->sh_name));
2095 if (SectionName == ".strtab") {
2096 if (dot_strtab_sec != 0)
2097 // FIXME: Proper error handling.
2098 report_fatal_error("Already found section named .strtab!");
2099 dot_strtab_sec = sh;
2100 VerifyStrTab(dot_strtab_sec);
2101 } else if (SectionName == ".dynstr") {
2102 if (dot_dynstr_sec != 0)
2103 // FIXME: Proper error handling.
2104 report_fatal_error("Already found section named .dynstr!");
2105 dot_dynstr_sec = sh;
2106 VerifyStrTab(dot_dynstr_sec);
2111 // Build symbol name side-mapping if there is one.
2112 if (SymbolTableSectionHeaderIndex) {
2113 const Elf_Word *ShndxTable = reinterpret_cast<const Elf_Word*>(base() +
2114 SymbolTableSectionHeaderIndex->sh_offset);
2116 for (symbol_iterator si = begin_symbols(),
2117 se = end_symbols(); si != se; si.increment(ec)) {
2119 report_fatal_error("Fewer extended symbol table entries than symbols!");
2120 if (*ShndxTable != ELF::SHN_UNDEF)
2121 ExtendedSymbolTable[getSymbol(si->getRawDataRefImpl())] = *ShndxTable;
2127 // Get the symbol table index in the symtab section given a symbol
2128 template<class ELFT>
2129 uint64_t ELFObjectFile<ELFT>::getSymbolIndex(const Elf_Sym *Sym) const {
2130 assert(SymbolTableSections.size() == 1 && "Only one symbol table supported!");
2131 const Elf_Shdr *SymTab = *SymbolTableSections.begin();
2132 uintptr_t SymLoc = uintptr_t(Sym);
2133 uintptr_t SymTabLoc = uintptr_t(base() + SymTab->sh_offset);
2134 assert(SymLoc > SymTabLoc && "Symbol not in symbol table!");
2135 uint64_t SymOffset = SymLoc - SymTabLoc;
2136 assert(SymOffset % SymTab->sh_entsize == 0 &&
2137 "Symbol not multiple of symbol size!");
2138 return SymOffset / SymTab->sh_entsize;
2141 template<class ELFT>
2142 symbol_iterator ELFObjectFile<ELFT>::begin_symbols() const {
2143 DataRefImpl SymbolData;
2144 if (SymbolTableSections.size() <= 1) {
2145 SymbolData.d.a = std::numeric_limits<uint32_t>::max();
2146 SymbolData.d.b = std::numeric_limits<uint32_t>::max();
2148 SymbolData.d.a = 1; // The 0th symbol in ELF is fake.
2149 SymbolData.d.b = 1; // The 0th table is .dynsym
2151 return symbol_iterator(SymbolRef(SymbolData, this));
2154 template<class ELFT>
2155 symbol_iterator ELFObjectFile<ELFT>::end_symbols() const {
2156 DataRefImpl SymbolData;
2157 SymbolData.d.a = std::numeric_limits<uint32_t>::max();
2158 SymbolData.d.b = std::numeric_limits<uint32_t>::max();
2159 return symbol_iterator(SymbolRef(SymbolData, this));
2162 template<class ELFT>
2163 symbol_iterator ELFObjectFile<ELFT>::begin_dynamic_symbols() const {
2164 DataRefImpl SymbolData;
2165 if (SymbolTableSections[0] == NULL) {
2166 SymbolData.d.a = std::numeric_limits<uint32_t>::max();
2167 SymbolData.d.b = std::numeric_limits<uint32_t>::max();
2169 SymbolData.d.a = 1; // The 0th symbol in ELF is fake.
2170 SymbolData.d.b = 0; // The 0th table is .dynsym
2172 return symbol_iterator(SymbolRef(SymbolData, this));
2175 template<class ELFT>
2176 symbol_iterator ELFObjectFile<ELFT>::end_dynamic_symbols() const {
2177 DataRefImpl SymbolData;
2178 SymbolData.d.a = std::numeric_limits<uint32_t>::max();
2179 SymbolData.d.b = std::numeric_limits<uint32_t>::max();
2180 return symbol_iterator(SymbolRef(SymbolData, this));
2183 template<class ELFT>
2184 section_iterator ELFObjectFile<ELFT>::begin_sections() const {
2186 ret.p = reinterpret_cast<intptr_t>(base() + Header->e_shoff);
2187 return section_iterator(SectionRef(ret, this));
2190 template<class ELFT>
2191 section_iterator ELFObjectFile<ELFT>::end_sections() const {
2193 ret.p = reinterpret_cast<intptr_t>(base()
2195 + (Header->e_shentsize*getNumSections()));
2196 return section_iterator(SectionRef(ret, this));
2199 template<class ELFT>
2200 typename ELFObjectFile<ELFT>::dyn_iterator
2201 ELFObjectFile<ELFT>::begin_dynamic_table() const {
2202 DataRefImpl DynData;
2203 if (dot_dynamic_sec == NULL || dot_dynamic_sec->sh_size == 0) {
2204 DynData.d.a = std::numeric_limits<uint32_t>::max();
2208 return dyn_iterator(DynRef(DynData, this));
2211 template<class ELFT>
2212 typename ELFObjectFile<ELFT>::dyn_iterator
2213 ELFObjectFile<ELFT>::end_dynamic_table() const {
2214 DataRefImpl DynData;
2215 DynData.d.a = std::numeric_limits<uint32_t>::max();
2216 return dyn_iterator(DynRef(DynData, this));
2219 template<class ELFT>
2220 error_code ELFObjectFile<ELFT>::getDynNext(DataRefImpl DynData,
2221 DynRef &Result) const {
2224 // Check to see if we are at the end of .dynamic
2225 if (DynData.d.a >= dot_dynamic_sec->getEntityCount()) {
2226 // We are at the end. Return the terminator.
2227 DynData.d.a = std::numeric_limits<uint32_t>::max();
2230 Result = DynRef(DynData, this);
2231 return object_error::success;
2234 template<class ELFT>
2236 ELFObjectFile<ELFT>::getLoadName() const {
2238 // Find the DT_SONAME entry
2239 dyn_iterator it = begin_dynamic_table();
2240 dyn_iterator ie = end_dynamic_table();
2243 if (it->getTag() == ELF::DT_SONAME)
2247 report_fatal_error("dynamic table iteration failed");
2250 if (dot_dynstr_sec == NULL)
2251 report_fatal_error("Dynamic string table is missing");
2252 dt_soname = getString(dot_dynstr_sec, it->getVal());
2260 template<class ELFT>
2261 library_iterator ELFObjectFile<ELFT>::begin_libraries_needed() const {
2262 // Find the first DT_NEEDED entry
2263 dyn_iterator i = begin_dynamic_table();
2264 dyn_iterator e = end_dynamic_table();
2267 if (i->getTag() == ELF::DT_NEEDED)
2271 report_fatal_error("dynamic table iteration failed");
2273 // Use the same DataRefImpl format as DynRef.
2274 return library_iterator(LibraryRef(i->getRawDataRefImpl(), this));
2277 template<class ELFT>
2278 error_code ELFObjectFile<ELFT>::getLibraryNext(DataRefImpl Data,
2279 LibraryRef &Result) const {
2280 // Use the same DataRefImpl format as DynRef.
2281 dyn_iterator i = dyn_iterator(DynRef(Data, this));
2282 dyn_iterator e = end_dynamic_table();
2284 // Skip the current dynamic table entry.
2288 // TODO: proper error handling
2290 report_fatal_error("dynamic table iteration failed");
2293 // Find the next DT_NEEDED entry.
2295 if (i->getTag() == ELF::DT_NEEDED)
2299 report_fatal_error("dynamic table iteration failed");
2301 Result = LibraryRef(i->getRawDataRefImpl(), this);
2302 return object_error::success;
2305 template<class ELFT>
2306 error_code ELFObjectFile<ELFT>::getLibraryPath(DataRefImpl Data,
2307 StringRef &Res) const {
2308 dyn_iterator i = dyn_iterator(DynRef(Data, this));
2309 if (i == end_dynamic_table())
2310 report_fatal_error("getLibraryPath() called on iterator end");
2312 if (i->getTag() != ELF::DT_NEEDED)
2313 report_fatal_error("Invalid library_iterator");
2315 // This uses .dynstr to lookup the name of the DT_NEEDED entry.
2316 // THis works as long as DT_STRTAB == .dynstr. This is true most of
2317 // the time, but the specification allows exceptions.
2318 // TODO: This should really use DT_STRTAB instead. Doing this requires
2319 // reading the program headers.
2320 if (dot_dynstr_sec == NULL)
2321 report_fatal_error("Dynamic string table is missing");
2322 Res = getString(dot_dynstr_sec, i->getVal());
2323 return object_error::success;
2326 template<class ELFT>
2327 library_iterator ELFObjectFile<ELFT>::end_libraries_needed() const {
2328 dyn_iterator e = end_dynamic_table();
2329 // Use the same DataRefImpl format as DynRef.
2330 return library_iterator(LibraryRef(e->getRawDataRefImpl(), this));
2333 template<class ELFT>
2334 uint8_t ELFObjectFile<ELFT>::getBytesInAddress() const {
2335 return ELFT::Is64Bits ? 8 : 4;
2338 template<class ELFT>
2339 StringRef ELFObjectFile<ELFT>::getFileFormatName() const {
2340 switch(Header->e_ident[ELF::EI_CLASS]) {
2341 case ELF::ELFCLASS32:
2342 switch(Header->e_machine) {
2344 return "ELF32-i386";
2345 case ELF::EM_X86_64:
2346 return "ELF32-x86-64";
2349 case ELF::EM_HEXAGON:
2350 return "ELF32-hexagon";
2352 return "ELF32-unknown";
2354 case ELF::ELFCLASS64:
2355 switch(Header->e_machine) {
2357 return "ELF64-i386";
2358 case ELF::EM_X86_64:
2359 return "ELF64-x86-64";
2361 return "ELF64-ppc64";
2363 return "ELF64-unknown";
2366 // FIXME: Proper error handling.
2367 report_fatal_error("Invalid ELFCLASS!");
2371 template<class ELFT>
2372 unsigned ELFObjectFile<ELFT>::getArch() const {
2373 switch(Header->e_machine) {
2376 case ELF::EM_X86_64:
2377 return Triple::x86_64;
2380 case ELF::EM_HEXAGON:
2381 return Triple::hexagon;
2383 return (static_cast<int>(ELFT::TargetEndianness)
2384 == static_cast<int>(support::little)) ?
2385 Triple::mipsel : Triple::mips;
2387 return Triple::ppc64;
2389 return Triple::UnknownArch;
2393 template<class ELFT>
2394 uint64_t ELFObjectFile<ELFT>::getNumSections() const {
2395 assert(Header && "Header not initialized!");
2396 if (Header->e_shnum == ELF::SHN_UNDEF) {
2397 assert(SectionHeaderTable && "SectionHeaderTable not initialized!");
2398 return SectionHeaderTable->sh_size;
2400 return Header->e_shnum;
2403 template<class ELFT>
2405 ELFObjectFile<ELFT>::getStringTableIndex() const {
2406 if (Header->e_shnum == ELF::SHN_UNDEF) {
2407 if (Header->e_shstrndx == ELF::SHN_HIRESERVE)
2408 return SectionHeaderTable->sh_link;
2409 if (Header->e_shstrndx >= getNumSections())
2412 return Header->e_shstrndx;
2415 template<class ELFT>
2416 template<typename T>
2418 ELFObjectFile<ELFT>::getEntry(uint16_t Section, uint32_t Entry) const {
2419 return getEntry<T>(getSection(Section), Entry);
2422 template<class ELFT>
2423 template<typename T>
2425 ELFObjectFile<ELFT>::getEntry(const Elf_Shdr * Section, uint32_t Entry) const {
2426 return reinterpret_cast<const T *>(
2428 + Section->sh_offset
2429 + (Entry * Section->sh_entsize));
2432 template<class ELFT>
2433 const typename ELFObjectFile<ELFT>::Elf_Sym *
2434 ELFObjectFile<ELFT>::getSymbol(DataRefImpl Symb) const {
2435 return getEntry<Elf_Sym>(SymbolTableSections[Symb.d.b], Symb.d.a);
2438 template<class ELFT>
2439 const typename ELFObjectFile<ELFT>::Elf_Dyn *
2440 ELFObjectFile<ELFT>::getDyn(DataRefImpl DynData) const {
2441 return getEntry<Elf_Dyn>(dot_dynamic_sec, DynData.d.a);
2444 template<class ELFT>
2445 const typename ELFObjectFile<ELFT>::Elf_Rel *
2446 ELFObjectFile<ELFT>::getRel(DataRefImpl Rel) const {
2447 return getEntry<Elf_Rel>(Rel.w.b, Rel.w.c);
2450 template<class ELFT>
2451 const typename ELFObjectFile<ELFT>::Elf_Rela *
2452 ELFObjectFile<ELFT>::getRela(DataRefImpl Rela) const {
2453 return getEntry<Elf_Rela>(Rela.w.b, Rela.w.c);
2456 template<class ELFT>
2457 const typename ELFObjectFile<ELFT>::Elf_Shdr *
2458 ELFObjectFile<ELFT>::getSection(DataRefImpl Symb) const {
2459 const Elf_Shdr *sec = getSection(Symb.d.b);
2460 if (sec->sh_type != ELF::SHT_SYMTAB || sec->sh_type != ELF::SHT_DYNSYM)
2461 // FIXME: Proper error handling.
2462 report_fatal_error("Invalid symbol table section!");
2466 template<class ELFT>
2467 const typename ELFObjectFile<ELFT>::Elf_Shdr *
2468 ELFObjectFile<ELFT>::getSection(uint32_t index) const {
2471 if (!SectionHeaderTable || index >= getNumSections())
2472 // FIXME: Proper error handling.
2473 report_fatal_error("Invalid section index!");
2475 return reinterpret_cast<const Elf_Shdr *>(
2476 reinterpret_cast<const char *>(SectionHeaderTable)
2477 + (index * Header->e_shentsize));
2480 template<class ELFT>
2481 const char *ELFObjectFile<ELFT>::getString(uint32_t section,
2482 ELF::Elf32_Word offset) const {
2483 return getString(getSection(section), offset);
2486 template<class ELFT>
2487 const char *ELFObjectFile<ELFT>::getString(const Elf_Shdr *section,
2488 ELF::Elf32_Word offset) const {
2489 assert(section && section->sh_type == ELF::SHT_STRTAB && "Invalid section!");
2490 if (offset >= section->sh_size)
2491 // FIXME: Proper error handling.
2492 report_fatal_error("Symbol name offset outside of string table!");
2493 return (const char *)base() + section->sh_offset + offset;
2496 template<class ELFT>
2497 error_code ELFObjectFile<ELFT>::getSymbolName(const Elf_Shdr *section,
2498 const Elf_Sym *symb,
2499 StringRef &Result) const {
2500 if (symb->st_name == 0) {
2501 const Elf_Shdr *section = getSection(symb);
2505 Result = getString(dot_shstrtab_sec, section->sh_name);
2506 return object_error::success;
2509 if (section == SymbolTableSections[0]) {
2510 // Symbol is in .dynsym, use .dynstr string table
2511 Result = getString(dot_dynstr_sec, symb->st_name);
2513 // Use the default symbol table name section.
2514 Result = getString(dot_strtab_sec, symb->st_name);
2516 return object_error::success;
2519 template<class ELFT>
2520 error_code ELFObjectFile<ELFT>::getSectionName(const Elf_Shdr *section,
2521 StringRef &Result) const {
2522 Result = StringRef(getString(dot_shstrtab_sec, section->sh_name));
2523 return object_error::success;
2526 template<class ELFT>
2527 error_code ELFObjectFile<ELFT>::getSymbolVersion(const Elf_Shdr *section,
2528 const Elf_Sym *symb,
2530 bool &IsDefault) const {
2531 // Handle non-dynamic symbols.
2532 if (section != SymbolTableSections[0]) {
2533 // Non-dynamic symbols can have versions in their names
2534 // A name of the form 'foo@V1' indicates version 'V1', non-default.
2535 // A name of the form 'foo@@V2' indicates version 'V2', default version.
2537 error_code ec = getSymbolName(section, symb, Name);
2538 if (ec != object_error::success)
2540 size_t atpos = Name.find('@');
2541 if (atpos == StringRef::npos) {
2544 return object_error::success;
2547 if (atpos < Name.size() && Name[atpos] == '@') {
2553 Version = Name.substr(atpos);
2554 return object_error::success;
2557 // This is a dynamic symbol. Look in the GNU symbol version table.
2558 if (dot_gnu_version_sec == NULL) {
2559 // No version table.
2562 return object_error::success;
2565 // Determine the position in the symbol table of this entry.
2566 const char *sec_start = (const char*)base() + section->sh_offset;
2567 size_t entry_index = ((const char*)symb - sec_start)/section->sh_entsize;
2569 // Get the corresponding version index entry
2570 const Elf_Versym *vs = getEntry<Elf_Versym>(dot_gnu_version_sec, entry_index);
2571 size_t version_index = vs->vs_index & ELF::VERSYM_VERSION;
2573 // Special markers for unversioned symbols.
2574 if (version_index == ELF::VER_NDX_LOCAL ||
2575 version_index == ELF::VER_NDX_GLOBAL) {
2578 return object_error::success;
2581 // Lookup this symbol in the version table
2583 if (version_index >= VersionMap.size() || VersionMap[version_index].isNull())
2584 report_fatal_error("Symbol has version index without corresponding "
2585 "define or reference entry");
2586 const VersionMapEntry &entry = VersionMap[version_index];
2588 // Get the version name string
2590 if (entry.isVerdef()) {
2591 // The first Verdaux entry holds the name.
2592 name_offset = entry.getVerdef()->getAux()->vda_name;
2594 name_offset = entry.getVernaux()->vna_name;
2596 Version = getString(dot_dynstr_sec, name_offset);
2599 if (entry.isVerdef()) {
2600 IsDefault = !(vs->vs_index & ELF::VERSYM_HIDDEN);
2605 return object_error::success;
2608 template<class ELFT>
2609 inline DynRefImpl<ELFT>::DynRefImpl(DataRefImpl DynP, const OwningType *Owner)
2611 , OwningObject(Owner) {}
2613 template<class ELFT>
2614 inline bool DynRefImpl<ELFT>::operator==(const DynRefImpl &Other) const {
2615 return DynPimpl == Other.DynPimpl;
2618 template<class ELFT>
2619 inline bool DynRefImpl<ELFT>::operator <(const DynRefImpl &Other) const {
2620 return DynPimpl < Other.DynPimpl;
2623 template<class ELFT>
2624 inline error_code DynRefImpl<ELFT>::getNext(DynRefImpl &Result) const {
2625 return OwningObject->getDynNext(DynPimpl, Result);
2628 template<class ELFT>
2629 inline int64_t DynRefImpl<ELFT>::getTag() const {
2630 return OwningObject->getDyn(DynPimpl)->d_tag;
2633 template<class ELFT>
2634 inline uint64_t DynRefImpl<ELFT>::getVal() const {
2635 return OwningObject->getDyn(DynPimpl)->d_un.d_val;
2638 template<class ELFT>
2639 inline uint64_t DynRefImpl<ELFT>::getPtr() const {
2640 return OwningObject->getDyn(DynPimpl)->d_un.d_ptr;
2643 template<class ELFT>
2644 inline DataRefImpl DynRefImpl<ELFT>::getRawDataRefImpl() const {
2648 /// This is a generic interface for retrieving GNU symbol version
2649 /// information from an ELFObjectFile.
2650 static inline error_code GetELFSymbolVersion(const ObjectFile *Obj,
2651 const SymbolRef &Sym,
2654 // Little-endian 32-bit
2655 if (const ELFObjectFile<ELFType<support::little, 4, false> > *ELFObj =
2656 dyn_cast<ELFObjectFile<ELFType<support::little, 4, false> > >(Obj))
2657 return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
2659 // Big-endian 32-bit
2660 if (const ELFObjectFile<ELFType<support::big, 4, false> > *ELFObj =
2661 dyn_cast<ELFObjectFile<ELFType<support::big, 4, false> > >(Obj))
2662 return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
2664 // Little-endian 64-bit
2665 if (const ELFObjectFile<ELFType<support::little, 8, true> > *ELFObj =
2666 dyn_cast<ELFObjectFile<ELFType<support::little, 8, true> > >(Obj))
2667 return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
2669 // Big-endian 64-bit
2670 if (const ELFObjectFile<ELFType<support::big, 8, true> > *ELFObj =
2671 dyn_cast<ELFObjectFile<ELFType<support::big, 8, true> > >(Obj))
2672 return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
2674 llvm_unreachable("Object passed to GetELFSymbolVersion() is not ELF");