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(ELFT::TargetEndianness == support::little,
800 // Iterate through the version definitions, and place each Elf_Verdef
801 // in the VersionMap according to its index.
803 void ELFObjectFile<ELFT>::LoadVersionDefs(const Elf_Shdr *sec) const {
804 unsigned vd_size = sec->sh_size; // Size of section in bytes
805 unsigned vd_count = sec->sh_info; // Number of Verdef entries
806 const char *sec_start = (const char*)base() + sec->sh_offset;
807 const char *sec_end = sec_start + vd_size;
808 // The first Verdef entry is at the start of the section.
809 const char *p = sec_start;
810 for (unsigned i = 0; i < vd_count; i++) {
811 if (p + sizeof(Elf_Verdef) > sec_end)
812 report_fatal_error("Section ended unexpectedly while scanning "
813 "version definitions.");
814 const Elf_Verdef *vd = reinterpret_cast<const Elf_Verdef *>(p);
815 if (vd->vd_version != ELF::VER_DEF_CURRENT)
816 report_fatal_error("Unexpected verdef version");
817 size_t index = vd->vd_ndx & ELF::VERSYM_VERSION;
818 if (index >= VersionMap.size())
819 VersionMap.resize(index+1);
820 VersionMap[index] = VersionMapEntry(vd);
825 // Iterate through the versions needed section, and place each Elf_Vernaux
826 // in the VersionMap according to its index.
828 void ELFObjectFile<ELFT>::LoadVersionNeeds(const Elf_Shdr *sec) const {
829 unsigned vn_size = sec->sh_size; // Size of section in bytes
830 unsigned vn_count = sec->sh_info; // Number of Verneed entries
831 const char *sec_start = (const char*)base() + sec->sh_offset;
832 const char *sec_end = sec_start + vn_size;
833 // The first Verneed entry is at the start of the section.
834 const char *p = sec_start;
835 for (unsigned i = 0; i < vn_count; i++) {
836 if (p + sizeof(Elf_Verneed) > sec_end)
837 report_fatal_error("Section ended unexpectedly while scanning "
838 "version needed records.");
839 const Elf_Verneed *vn = reinterpret_cast<const Elf_Verneed *>(p);
840 if (vn->vn_version != ELF::VER_NEED_CURRENT)
841 report_fatal_error("Unexpected verneed version");
842 // Iterate through the Vernaux entries
843 const char *paux = p + vn->vn_aux;
844 for (unsigned j = 0; j < vn->vn_cnt; j++) {
845 if (paux + sizeof(Elf_Vernaux) > sec_end)
846 report_fatal_error("Section ended unexpected while scanning auxiliary "
847 "version needed records.");
848 const Elf_Vernaux *vna = reinterpret_cast<const Elf_Vernaux *>(paux);
849 size_t index = vna->vna_other & ELF::VERSYM_VERSION;
850 if (index >= VersionMap.size())
851 VersionMap.resize(index+1);
852 VersionMap[index] = VersionMapEntry(vna);
853 paux += vna->vna_next;
860 void ELFObjectFile<ELFT>::LoadVersionMap() const {
861 // If there is no dynamic symtab or version table, there is nothing to do.
862 if (SymbolTableSections[0] == NULL || dot_gnu_version_sec == NULL)
865 // Has the VersionMap already been loaded?
866 if (VersionMap.size() > 0)
869 // The first two version indexes are reserved.
870 // Index 0 is LOCAL, index 1 is GLOBAL.
871 VersionMap.push_back(VersionMapEntry());
872 VersionMap.push_back(VersionMapEntry());
874 if (dot_gnu_version_d_sec)
875 LoadVersionDefs(dot_gnu_version_d_sec);
877 if (dot_gnu_version_r_sec)
878 LoadVersionNeeds(dot_gnu_version_r_sec);
882 void ELFObjectFile<ELFT>::validateSymbol(DataRefImpl Symb) const {
883 const Elf_Sym *symb = getSymbol(Symb);
884 const Elf_Shdr *SymbolTableSection = SymbolTableSections[Symb.d.b];
885 // FIXME: We really need to do proper error handling in the case of an invalid
886 // input file. Because we don't use exceptions, I think we'll just pass
887 // an error object around.
889 && SymbolTableSection
890 && symb >= (const Elf_Sym*)(base()
891 + SymbolTableSection->sh_offset)
892 && symb < (const Elf_Sym*)(base()
893 + SymbolTableSection->sh_offset
894 + SymbolTableSection->sh_size)))
895 // FIXME: Proper error handling.
896 report_fatal_error("Symb must point to a valid symbol!");
900 error_code ELFObjectFile<ELFT>::getSymbolNext(DataRefImpl Symb,
901 SymbolRef &Result) const {
902 validateSymbol(Symb);
903 const Elf_Shdr *SymbolTableSection = SymbolTableSections[Symb.d.b];
906 // Check to see if we are at the end of this symbol table.
907 if (Symb.d.a >= SymbolTableSection->getEntityCount()) {
908 // We are at the end. If there are other symbol tables, jump to them.
909 // If the symbol table is .dynsym, we are iterating dynamic symbols,
910 // and there is only one table of these.
913 Symb.d.a = 1; // The 0th symbol in ELF is fake.
915 // Otherwise return the terminator.
916 if (Symb.d.b == 0 || Symb.d.b >= SymbolTableSections.size()) {
917 Symb.d.a = std::numeric_limits<uint32_t>::max();
918 Symb.d.b = std::numeric_limits<uint32_t>::max();
922 Result = SymbolRef(Symb, this);
923 return object_error::success;
927 error_code ELFObjectFile<ELFT>::getSymbolName(DataRefImpl Symb,
928 StringRef &Result) const {
929 validateSymbol(Symb);
930 const Elf_Sym *symb = getSymbol(Symb);
931 return getSymbolName(SymbolTableSections[Symb.d.b], symb, Result);
935 error_code ELFObjectFile<ELFT>::getSymbolVersion(SymbolRef SymRef,
937 bool &IsDefault) const {
938 DataRefImpl Symb = SymRef.getRawDataRefImpl();
939 validateSymbol(Symb);
940 const Elf_Sym *symb = getSymbol(Symb);
941 return getSymbolVersion(SymbolTableSections[Symb.d.b], symb,
946 ELF::Elf64_Word ELFObjectFile<ELFT>
947 ::getSymbolTableIndex(const Elf_Sym *symb) const {
948 if (symb->st_shndx == ELF::SHN_XINDEX)
949 return ExtendedSymbolTable.lookup(symb);
950 return symb->st_shndx;
954 const typename ELFObjectFile<ELFT>::Elf_Shdr *
955 ELFObjectFile<ELFT>::getSection(const Elf_Sym *symb) const {
956 if (symb->st_shndx == ELF::SHN_XINDEX)
957 return getSection(ExtendedSymbolTable.lookup(symb));
958 if (symb->st_shndx >= ELF::SHN_LORESERVE)
960 return getSection(symb->st_shndx);
964 const typename ELFObjectFile<ELFT>::Elf_Shdr *
965 ELFObjectFile<ELFT>::getElfSection(section_iterator &It) const {
966 llvm::object::DataRefImpl ShdrRef = It->getRawDataRefImpl();
967 return reinterpret_cast<const Elf_Shdr *>(ShdrRef.p);
971 const typename ELFObjectFile<ELFT>::Elf_Sym *
972 ELFObjectFile<ELFT>::getElfSymbol(symbol_iterator &It) const {
973 return getSymbol(It->getRawDataRefImpl());
977 const typename ELFObjectFile<ELFT>::Elf_Sym *
978 ELFObjectFile<ELFT>::getElfSymbol(uint32_t index) const {
979 DataRefImpl SymbolData;
980 SymbolData.d.a = index;
982 return getSymbol(SymbolData);
986 error_code ELFObjectFile<ELFT>::getSymbolFileOffset(DataRefImpl Symb,
987 uint64_t &Result) const {
988 validateSymbol(Symb);
989 const Elf_Sym *symb = getSymbol(Symb);
990 const Elf_Shdr *Section;
991 switch (getSymbolTableIndex(symb)) {
992 case ELF::SHN_COMMON:
993 // Unintialized symbols have no offset in the object file
995 Result = UnknownAddressOrSize;
996 return object_error::success;
998 Result = symb->st_value;
999 return object_error::success;
1000 default: Section = getSection(symb);
1003 switch (symb->getType()) {
1004 case ELF::STT_SECTION:
1005 Result = Section ? Section->sh_addr : UnknownAddressOrSize;
1006 return object_error::success;
1008 case ELF::STT_OBJECT:
1009 case ELF::STT_NOTYPE:
1010 Result = symb->st_value +
1011 (Section ? Section->sh_offset : 0);
1012 return object_error::success;
1014 Result = UnknownAddressOrSize;
1015 return object_error::success;
1019 template<class ELFT>
1020 error_code ELFObjectFile<ELFT>::getSymbolAddress(DataRefImpl Symb,
1021 uint64_t &Result) const {
1022 validateSymbol(Symb);
1023 const Elf_Sym *symb = getSymbol(Symb);
1024 const Elf_Shdr *Section;
1025 switch (getSymbolTableIndex(symb)) {
1026 case ELF::SHN_COMMON:
1027 case ELF::SHN_UNDEF:
1028 Result = UnknownAddressOrSize;
1029 return object_error::success;
1031 Result = symb->st_value;
1032 return object_error::success;
1033 default: Section = getSection(symb);
1036 switch (symb->getType()) {
1037 case ELF::STT_SECTION:
1038 Result = Section ? Section->sh_addr : UnknownAddressOrSize;
1039 return object_error::success;
1041 case ELF::STT_OBJECT:
1042 case ELF::STT_NOTYPE:
1044 switch(Header->e_type) {
1047 IsRelocatable = false;
1050 IsRelocatable = true;
1052 Result = symb->st_value;
1053 if (IsRelocatable && Section != 0)
1054 Result += Section->sh_addr;
1055 return object_error::success;
1057 Result = UnknownAddressOrSize;
1058 return object_error::success;
1062 template<class ELFT>
1063 error_code ELFObjectFile<ELFT>::getSymbolSize(DataRefImpl Symb,
1064 uint64_t &Result) const {
1065 validateSymbol(Symb);
1066 const Elf_Sym *symb = getSymbol(Symb);
1067 if (symb->st_size == 0)
1068 Result = UnknownAddressOrSize;
1069 Result = symb->st_size;
1070 return object_error::success;
1073 template<class ELFT>
1074 error_code ELFObjectFile<ELFT>::getSymbolNMTypeChar(DataRefImpl Symb,
1075 char &Result) const {
1076 validateSymbol(Symb);
1077 const Elf_Sym *symb = getSymbol(Symb);
1078 const Elf_Shdr *Section = getSection(symb);
1083 switch (Section->sh_type) {
1084 case ELF::SHT_PROGBITS:
1085 case ELF::SHT_DYNAMIC:
1086 switch (Section->sh_flags) {
1087 case (ELF::SHF_ALLOC | ELF::SHF_EXECINSTR):
1089 case (ELF::SHF_ALLOC | ELF::SHF_WRITE):
1091 case ELF::SHF_ALLOC:
1092 case (ELF::SHF_ALLOC | ELF::SHF_MERGE):
1093 case (ELF::SHF_ALLOC | ELF::SHF_MERGE | ELF::SHF_STRINGS):
1097 case ELF::SHT_NOBITS: ret = 'b';
1101 switch (getSymbolTableIndex(symb)) {
1102 case ELF::SHN_UNDEF:
1106 case ELF::SHN_ABS: ret = 'a'; break;
1107 case ELF::SHN_COMMON: ret = 'c'; break;
1110 switch (symb->getBinding()) {
1111 case ELF::STB_GLOBAL: ret = ::toupper(ret); break;
1113 if (getSymbolTableIndex(symb) == ELF::SHN_UNDEF)
1116 if (symb->getType() == ELF::STT_OBJECT)
1122 if (ret == '?' && symb->getType() == ELF::STT_SECTION) {
1124 if (error_code ec = getSymbolName(Symb, name))
1126 Result = StringSwitch<char>(name)
1127 .StartsWith(".debug", 'N')
1128 .StartsWith(".note", 'n')
1130 return object_error::success;
1134 return object_error::success;
1137 template<class ELFT>
1138 error_code ELFObjectFile<ELFT>::getSymbolType(DataRefImpl Symb,
1139 SymbolRef::Type &Result) const {
1140 validateSymbol(Symb);
1141 const Elf_Sym *symb = getSymbol(Symb);
1143 switch (symb->getType()) {
1144 case ELF::STT_NOTYPE:
1145 Result = SymbolRef::ST_Unknown;
1147 case ELF::STT_SECTION:
1148 Result = SymbolRef::ST_Debug;
1151 Result = SymbolRef::ST_File;
1154 Result = SymbolRef::ST_Function;
1156 case ELF::STT_OBJECT:
1157 case ELF::STT_COMMON:
1159 Result = SymbolRef::ST_Data;
1162 Result = SymbolRef::ST_Other;
1165 return object_error::success;
1168 template<class ELFT>
1169 error_code ELFObjectFile<ELFT>::getSymbolFlags(DataRefImpl Symb,
1170 uint32_t &Result) const {
1171 validateSymbol(Symb);
1172 const Elf_Sym *symb = getSymbol(Symb);
1174 Result = SymbolRef::SF_None;
1176 if (symb->getBinding() != ELF::STB_LOCAL)
1177 Result |= SymbolRef::SF_Global;
1179 if (symb->getBinding() == ELF::STB_WEAK)
1180 Result |= SymbolRef::SF_Weak;
1182 if (symb->st_shndx == ELF::SHN_ABS)
1183 Result |= SymbolRef::SF_Absolute;
1185 if (symb->getType() == ELF::STT_FILE ||
1186 symb->getType() == ELF::STT_SECTION)
1187 Result |= SymbolRef::SF_FormatSpecific;
1189 if (getSymbolTableIndex(symb) == ELF::SHN_UNDEF)
1190 Result |= SymbolRef::SF_Undefined;
1192 if (symb->getType() == ELF::STT_COMMON ||
1193 getSymbolTableIndex(symb) == ELF::SHN_COMMON)
1194 Result |= SymbolRef::SF_Common;
1196 if (symb->getType() == ELF::STT_TLS)
1197 Result |= SymbolRef::SF_ThreadLocal;
1199 return object_error::success;
1202 template<class ELFT>
1203 error_code ELFObjectFile<ELFT>::getSymbolSection(DataRefImpl Symb,
1204 section_iterator &Res) const {
1205 validateSymbol(Symb);
1206 const Elf_Sym *symb = getSymbol(Symb);
1207 const Elf_Shdr *sec = getSection(symb);
1209 Res = end_sections();
1212 Sec.p = reinterpret_cast<intptr_t>(sec);
1213 Res = section_iterator(SectionRef(Sec, this));
1215 return object_error::success;
1218 template<class ELFT>
1219 error_code ELFObjectFile<ELFT>::getSymbolValue(DataRefImpl Symb,
1220 uint64_t &Val) const {
1221 validateSymbol(Symb);
1222 const Elf_Sym *symb = getSymbol(Symb);
1223 Val = symb->st_value;
1224 return object_error::success;
1227 template<class ELFT>
1228 error_code ELFObjectFile<ELFT>::getSectionNext(DataRefImpl Sec,
1229 SectionRef &Result) const {
1230 const uint8_t *sec = reinterpret_cast<const uint8_t *>(Sec.p);
1231 sec += Header->e_shentsize;
1232 Sec.p = reinterpret_cast<intptr_t>(sec);
1233 Result = SectionRef(Sec, this);
1234 return object_error::success;
1237 template<class ELFT>
1238 error_code ELFObjectFile<ELFT>::getSectionName(DataRefImpl Sec,
1239 StringRef &Result) const {
1240 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1241 Result = StringRef(getString(dot_shstrtab_sec, sec->sh_name));
1242 return object_error::success;
1245 template<class ELFT>
1246 error_code ELFObjectFile<ELFT>::getSectionAddress(DataRefImpl Sec,
1247 uint64_t &Result) const {
1248 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1249 Result = sec->sh_addr;
1250 return object_error::success;
1253 template<class ELFT>
1254 error_code ELFObjectFile<ELFT>::getSectionSize(DataRefImpl Sec,
1255 uint64_t &Result) const {
1256 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1257 Result = sec->sh_size;
1258 return object_error::success;
1261 template<class ELFT>
1262 error_code ELFObjectFile<ELFT>::getSectionContents(DataRefImpl Sec,
1263 StringRef &Result) const {
1264 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1265 const char *start = (const char*)base() + sec->sh_offset;
1266 Result = StringRef(start, sec->sh_size);
1267 return object_error::success;
1270 template<class ELFT>
1271 error_code ELFObjectFile<ELFT>::getSectionContents(const Elf_Shdr *Sec,
1272 StringRef &Result) const {
1273 const char *start = (const char*)base() + Sec->sh_offset;
1274 Result = StringRef(start, Sec->sh_size);
1275 return object_error::success;
1278 template<class ELFT>
1279 error_code ELFObjectFile<ELFT>::getSectionAlignment(DataRefImpl Sec,
1280 uint64_t &Result) const {
1281 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1282 Result = sec->sh_addralign;
1283 return object_error::success;
1286 template<class ELFT>
1287 error_code ELFObjectFile<ELFT>::isSectionText(DataRefImpl Sec,
1288 bool &Result) const {
1289 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1290 if (sec->sh_flags & ELF::SHF_EXECINSTR)
1294 return object_error::success;
1297 template<class ELFT>
1298 error_code ELFObjectFile<ELFT>::isSectionData(DataRefImpl Sec,
1299 bool &Result) const {
1300 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1301 if (sec->sh_flags & (ELF::SHF_ALLOC | ELF::SHF_WRITE)
1302 && sec->sh_type == ELF::SHT_PROGBITS)
1306 return object_error::success;
1309 template<class ELFT>
1310 error_code ELFObjectFile<ELFT>::isSectionBSS(DataRefImpl Sec,
1311 bool &Result) const {
1312 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1313 if (sec->sh_flags & (ELF::SHF_ALLOC | ELF::SHF_WRITE)
1314 && sec->sh_type == ELF::SHT_NOBITS)
1318 return object_error::success;
1321 template<class ELFT>
1322 error_code ELFObjectFile<ELFT>::isSectionRequiredForExecution(
1323 DataRefImpl Sec, bool &Result) const {
1324 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1325 if (sec->sh_flags & ELF::SHF_ALLOC)
1329 return object_error::success;
1332 template<class ELFT>
1333 error_code ELFObjectFile<ELFT>::isSectionVirtual(DataRefImpl Sec,
1334 bool &Result) const {
1335 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1336 if (sec->sh_type == ELF::SHT_NOBITS)
1340 return object_error::success;
1343 template<class ELFT>
1344 error_code ELFObjectFile<ELFT>::isSectionZeroInit(DataRefImpl Sec,
1345 bool &Result) const {
1346 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1347 // For ELF, all zero-init sections are virtual (that is, they occupy no space
1348 // in the object image) and vice versa.
1349 Result = sec->sh_type == ELF::SHT_NOBITS;
1350 return object_error::success;
1353 template<class ELFT>
1354 error_code ELFObjectFile<ELFT>::isSectionReadOnlyData(DataRefImpl Sec,
1355 bool &Result) const {
1356 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1357 if (sec->sh_flags & ELF::SHF_WRITE || sec->sh_flags & ELF::SHF_EXECINSTR)
1361 return object_error::success;
1364 template<class ELFT>
1365 error_code ELFObjectFile<ELFT>::sectionContainsSymbol(DataRefImpl Sec,
1367 bool &Result) const {
1368 // FIXME: Unimplemented.
1370 return object_error::success;
1373 template<class ELFT>
1375 ELFObjectFile<ELFT>::getSectionRelBegin(DataRefImpl Sec) const {
1376 DataRefImpl RelData;
1377 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1378 typename RelocMap_t::const_iterator ittr = SectionRelocMap.find(sec);
1379 if (sec != 0 && ittr != SectionRelocMap.end()) {
1380 RelData.w.a = getSection(ittr->second[0])->sh_info;
1381 RelData.w.b = ittr->second[0];
1384 return relocation_iterator(RelocationRef(RelData, this));
1387 template<class ELFT>
1389 ELFObjectFile<ELFT>::getSectionRelEnd(DataRefImpl Sec) const {
1390 DataRefImpl RelData;
1391 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1392 typename RelocMap_t::const_iterator ittr = SectionRelocMap.find(sec);
1393 if (sec != 0 && ittr != SectionRelocMap.end()) {
1394 // Get the index of the last relocation section for this section.
1395 std::size_t relocsecindex = ittr->second[ittr->second.size() - 1];
1396 const Elf_Shdr *relocsec = getSection(relocsecindex);
1397 RelData.w.a = relocsec->sh_info;
1398 RelData.w.b = relocsecindex;
1399 RelData.w.c = relocsec->sh_size / relocsec->sh_entsize;
1401 return relocation_iterator(RelocationRef(RelData, this));
1405 template<class ELFT>
1406 error_code ELFObjectFile<ELFT>::getRelocationNext(DataRefImpl Rel,
1407 RelocationRef &Result) const {
1409 const Elf_Shdr *relocsec = getSection(Rel.w.b);
1410 if (Rel.w.c >= (relocsec->sh_size / relocsec->sh_entsize)) {
1411 // We have reached the end of the relocations for this section. See if there
1412 // is another relocation section.
1413 typename RelocMap_t::mapped_type relocseclist =
1414 SectionRelocMap.lookup(getSection(Rel.w.a));
1416 // Do a binary search for the current reloc section index (which must be
1417 // present). Then get the next one.
1418 typename RelocMap_t::mapped_type::const_iterator loc =
1419 std::lower_bound(relocseclist.begin(), relocseclist.end(), Rel.w.b);
1422 // If there is no next one, don't do anything. The ++Rel.w.c above sets Rel
1423 // to the end iterator.
1424 if (loc != relocseclist.end()) {
1429 Result = RelocationRef(Rel, this);
1430 return object_error::success;
1433 template<class ELFT>
1434 error_code ELFObjectFile<ELFT>::getRelocationSymbol(DataRefImpl Rel,
1435 SymbolRef &Result) const {
1437 const Elf_Shdr *sec = getSection(Rel.w.b);
1438 switch (sec->sh_type) {
1440 report_fatal_error("Invalid section type in Rel!");
1441 case ELF::SHT_REL : {
1442 symbolIdx = getRel(Rel)->getSymbol();
1445 case ELF::SHT_RELA : {
1446 symbolIdx = getRela(Rel)->getSymbol();
1450 DataRefImpl SymbolData;
1451 IndexMap_t::const_iterator it = SymbolTableSectionsIndexMap.find(sec->sh_link);
1452 if (it == SymbolTableSectionsIndexMap.end())
1453 report_fatal_error("Relocation symbol table not found!");
1454 SymbolData.d.a = symbolIdx;
1455 SymbolData.d.b = it->second;
1456 Result = SymbolRef(SymbolData, this);
1457 return object_error::success;
1460 template<class ELFT>
1461 error_code ELFObjectFile<ELFT>::getRelocationAddress(DataRefImpl Rel,
1462 uint64_t &Result) const {
1464 const Elf_Shdr *sec = getSection(Rel.w.b);
1465 switch (sec->sh_type) {
1467 report_fatal_error("Invalid section type in Rel!");
1468 case ELF::SHT_REL : {
1469 offset = getRel(Rel)->r_offset;
1472 case ELF::SHT_RELA : {
1473 offset = getRela(Rel)->r_offset;
1479 return object_error::success;
1482 template<class ELFT>
1483 error_code ELFObjectFile<ELFT>::getRelocationOffset(DataRefImpl Rel,
1484 uint64_t &Result) const {
1486 const Elf_Shdr *sec = getSection(Rel.w.b);
1487 switch (sec->sh_type) {
1489 report_fatal_error("Invalid section type in Rel!");
1490 case ELF::SHT_REL : {
1491 offset = getRel(Rel)->r_offset;
1494 case ELF::SHT_RELA : {
1495 offset = getRela(Rel)->r_offset;
1500 Result = offset - sec->sh_addr;
1501 return object_error::success;
1504 template<class ELFT>
1505 error_code ELFObjectFile<ELFT>::getRelocationType(DataRefImpl Rel,
1506 uint64_t &Result) const {
1507 const Elf_Shdr *sec = getSection(Rel.w.b);
1508 switch (sec->sh_type) {
1510 report_fatal_error("Invalid section type in Rel!");
1511 case ELF::SHT_REL : {
1512 Result = getRel(Rel)->getType();
1515 case ELF::SHT_RELA : {
1516 Result = getRela(Rel)->getType();
1520 return object_error::success;
1523 #define LLVM_ELF_SWITCH_RELOC_TYPE_NAME(enum) \
1524 case ELF::enum: res = #enum; break;
1526 template<class ELFT>
1527 error_code ELFObjectFile<ELFT>::getRelocationTypeName(
1528 DataRefImpl Rel, SmallVectorImpl<char> &Result) const {
1529 const Elf_Shdr *sec = getSection(Rel.w.b);
1532 switch (sec->sh_type) {
1534 return object_error::parse_failed;
1535 case ELF::SHT_REL : {
1536 type = getRel(Rel)->getType();
1539 case ELF::SHT_RELA : {
1540 type = getRela(Rel)->getType();
1544 switch (Header->e_machine) {
1545 case ELF::EM_X86_64:
1547 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_NONE);
1548 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_64);
1549 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC32);
1550 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOT32);
1551 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PLT32);
1552 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_COPY);
1553 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GLOB_DAT);
1554 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_JUMP_SLOT);
1555 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_RELATIVE);
1556 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPCREL);
1557 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_32);
1558 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_32S);
1559 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_16);
1560 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC16);
1561 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_8);
1562 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC8);
1563 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_DTPMOD64);
1564 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_DTPOFF64);
1565 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TPOFF64);
1566 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSGD);
1567 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSLD);
1568 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_DTPOFF32);
1569 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTTPOFF);
1570 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TPOFF32);
1571 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC64);
1572 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTOFF64);
1573 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPC32);
1574 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_SIZE32);
1575 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_SIZE64);
1576 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPC32_TLSDESC);
1577 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSDESC_CALL);
1578 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSDESC);
1585 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_NONE);
1586 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_32);
1587 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PC32);
1588 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GOT32);
1589 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PLT32);
1590 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_COPY);
1591 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GLOB_DAT);
1592 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_JUMP_SLOT);
1593 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_RELATIVE);
1594 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GOTOFF);
1595 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GOTPC);
1596 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_32PLT);
1597 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_TPOFF);
1598 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_IE);
1599 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GOTIE);
1600 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LE);
1601 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD);
1602 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM);
1603 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_16);
1604 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PC16);
1605 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_8);
1606 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PC8);
1607 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_32);
1608 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_PUSH);
1609 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_CALL);
1610 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_POP);
1611 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_32);
1612 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_PUSH);
1613 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_CALL);
1614 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_POP);
1615 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDO_32);
1616 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_IE_32);
1617 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LE_32);
1618 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DTPMOD32);
1619 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DTPOFF32);
1620 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_TPOFF32);
1621 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GOTDESC);
1622 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DESC_CALL);
1623 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DESC);
1624 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_IRELATIVE);
1631 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_NONE);
1632 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PC24);
1633 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS32);
1634 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_REL32);
1635 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_PC_G0);
1636 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS16);
1637 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS12);
1638 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_ABS5);
1639 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS8);
1640 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_SBREL32);
1641 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_CALL);
1642 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_PC8);
1643 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_BREL_ADJ);
1644 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_DESC);
1645 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_SWI8);
1646 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_XPC25);
1647 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_XPC22);
1648 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_DTPMOD32);
1649 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_DTPOFF32);
1650 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_TPOFF32);
1651 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_COPY);
1652 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GLOB_DAT);
1653 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_JUMP_SLOT);
1654 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_RELATIVE);
1655 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOTOFF32);
1656 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_BASE_PREL);
1657 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOT_BREL);
1658 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PLT32);
1659 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_CALL);
1660 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_JUMP24);
1661 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP24);
1662 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_BASE_ABS);
1663 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PCREL_7_0);
1664 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PCREL_15_8);
1665 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PCREL_23_15);
1666 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_SBREL_11_0_NC);
1667 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SBREL_19_12_NC);
1668 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SBREL_27_20_CK);
1669 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TARGET1);
1670 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_SBREL31);
1671 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_V4BX);
1672 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TARGET2);
1673 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PREL31);
1674 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVW_ABS_NC);
1675 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVT_ABS);
1676 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVW_PREL_NC);
1677 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVT_PREL);
1678 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVW_ABS_NC);
1679 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVT_ABS);
1680 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVW_PREL_NC);
1681 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVT_PREL);
1682 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP19);
1683 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP6);
1684 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_ALU_PREL_11_0);
1685 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_PC12);
1686 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS32_NOI);
1687 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_REL32_NOI);
1688 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G0_NC);
1689 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G0);
1690 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G1_NC);
1691 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G1);
1692 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G2);
1693 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_PC_G1);
1694 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_PC_G2);
1695 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_PC_G0);
1696 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_PC_G1);
1697 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_PC_G2);
1698 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_PC_G0);
1699 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_PC_G1);
1700 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_PC_G2);
1701 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G0_NC);
1702 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G0);
1703 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G1_NC);
1704 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G1);
1705 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G2);
1706 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_SB_G0);
1707 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_SB_G1);
1708 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_SB_G2);
1709 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_SB_G0);
1710 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_SB_G1);
1711 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_SB_G2);
1712 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_SB_G0);
1713 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_SB_G1);
1714 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_SB_G2);
1715 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVW_BREL_NC);
1716 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVT_BREL);
1717 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVW_BREL);
1718 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVW_BREL_NC);
1719 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVT_BREL);
1720 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVW_BREL);
1721 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_GOTDESC);
1722 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_CALL);
1723 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_DESCSEQ);
1724 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_TLS_CALL);
1725 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PLT32_ABS);
1726 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOT_ABS);
1727 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOT_PREL);
1728 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOT_BREL12);
1729 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOTOFF12);
1730 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOTRELAX);
1731 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GNU_VTENTRY);
1732 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GNU_VTINHERIT);
1733 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP11);
1734 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP8);
1735 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_GD32);
1736 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LDM32);
1737 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LDO32);
1738 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_IE32);
1739 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LE32);
1740 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LDO12);
1741 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LE12);
1742 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_IE12GP);
1743 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_0);
1744 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_1);
1745 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_2);
1746 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_3);
1747 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_4);
1748 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_5);
1749 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_6);
1750 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_7);
1751 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_8);
1752 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_9);
1753 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_10);
1754 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_11);
1755 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_12);
1756 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_13);
1757 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_14);
1758 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_15);
1759 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ME_TOO);
1760 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_TLS_DESCSEQ16);
1761 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_TLS_DESCSEQ32);
1766 case ELF::EM_HEXAGON:
1768 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_NONE);
1769 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B22_PCREL);
1770 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B15_PCREL);
1771 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B7_PCREL);
1772 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_LO16);
1773 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_HI16);
1774 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_32);
1775 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_16);
1776 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_8);
1777 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GPREL16_0);
1778 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GPREL16_1);
1779 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GPREL16_2);
1780 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GPREL16_3);
1781 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_HL16);
1782 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B13_PCREL);
1783 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B9_PCREL);
1784 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B32_PCREL_X);
1785 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_32_6_X);
1786 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B22_PCREL_X);
1787 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B15_PCREL_X);
1788 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B13_PCREL_X);
1789 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B9_PCREL_X);
1790 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B7_PCREL_X);
1791 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_16_X);
1792 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_12_X);
1793 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_11_X);
1794 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_10_X);
1795 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_9_X);
1796 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_8_X);
1797 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_7_X);
1798 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_6_X);
1799 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_32_PCREL);
1800 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_COPY);
1801 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GLOB_DAT);
1802 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_JMP_SLOT);
1803 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_RELATIVE);
1804 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_PLT_B22_PCREL);
1805 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_LO16);
1806 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_HI16);
1807 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_32);
1808 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_LO16);
1809 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_HI16);
1810 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_32);
1811 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_16);
1812 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPMOD_32);
1813 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_LO16);
1814 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_HI16);
1815 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_32);
1816 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_16);
1817 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_PLT_B22_PCREL);
1818 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_LO16);
1819 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_HI16);
1820 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_32);
1821 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_16);
1822 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_LO16);
1823 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_HI16);
1824 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_32);
1825 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_LO16);
1826 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_HI16);
1827 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_32);
1828 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_16);
1829 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_LO16);
1830 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_HI16);
1831 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_32);
1832 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_16);
1833 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_6_PCREL_X);
1834 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_32_6_X);
1835 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_16_X);
1836 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_11_X);
1837 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_32_6_X);
1838 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_16_X);
1839 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_11_X);
1840 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_32_6_X);
1841 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_16_X);
1842 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_11_X);
1843 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_32_6_X);
1844 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_16_X);
1845 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_11_X);
1846 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_32_6_X);
1847 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_16_X);
1848 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_32_6_X);
1849 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_16_X);
1850 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_11_X);
1851 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_32_6_X);
1852 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_16_X);
1853 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_11_X);
1861 Result.append(res.begin(), res.end());
1862 return object_error::success;
1865 #undef LLVM_ELF_SWITCH_RELOC_TYPE_NAME
1867 template<class ELFT>
1868 error_code ELFObjectFile<ELFT>::getRelocationAdditionalInfo(
1869 DataRefImpl Rel, int64_t &Result) const {
1870 const Elf_Shdr *sec = getSection(Rel.w.b);
1871 switch (sec->sh_type) {
1873 report_fatal_error("Invalid section type in Rel!");
1874 case ELF::SHT_REL : {
1876 return object_error::success;
1878 case ELF::SHT_RELA : {
1879 Result = getRela(Rel)->r_addend;
1880 return object_error::success;
1885 template<class ELFT>
1886 error_code ELFObjectFile<ELFT>::getRelocationValueString(
1887 DataRefImpl Rel, SmallVectorImpl<char> &Result) const {
1888 const Elf_Shdr *sec = getSection(Rel.w.b);
1892 uint16_t symbol_index = 0;
1893 switch (sec->sh_type) {
1895 return object_error::parse_failed;
1896 case ELF::SHT_REL: {
1897 type = getRel(Rel)->getType();
1898 symbol_index = getRel(Rel)->getSymbol();
1899 // TODO: Read implicit addend from section data.
1902 case ELF::SHT_RELA: {
1903 type = getRela(Rel)->getType();
1904 symbol_index = getRela(Rel)->getSymbol();
1905 addend = getRela(Rel)->r_addend;
1909 const Elf_Sym *symb = getEntry<Elf_Sym>(sec->sh_link, symbol_index);
1911 if (error_code ec = getSymbolName(getSection(sec->sh_link), symb, symname))
1913 switch (Header->e_machine) {
1914 case ELF::EM_X86_64:
1916 case ELF::R_X86_64_PC8:
1917 case ELF::R_X86_64_PC16:
1918 case ELF::R_X86_64_PC32: {
1920 raw_string_ostream fmt(fmtbuf);
1921 fmt << symname << (addend < 0 ? "" : "+") << addend << "-P";
1923 Result.append(fmtbuf.begin(), fmtbuf.end());
1926 case ELF::R_X86_64_8:
1927 case ELF::R_X86_64_16:
1928 case ELF::R_X86_64_32:
1929 case ELF::R_X86_64_32S:
1930 case ELF::R_X86_64_64: {
1932 raw_string_ostream fmt(fmtbuf);
1933 fmt << symname << (addend < 0 ? "" : "+") << addend;
1935 Result.append(fmtbuf.begin(), fmtbuf.end());
1943 case ELF::EM_HEXAGON:
1950 Result.append(res.begin(), res.end());
1951 return object_error::success;
1954 // Verify that the last byte in the string table in a null.
1955 template<class ELFT>
1956 void ELFObjectFile<ELFT>::VerifyStrTab(const Elf_Shdr *sh) const {
1957 const char *strtab = (const char*)base() + sh->sh_offset;
1958 if (strtab[sh->sh_size - 1] != 0)
1959 // FIXME: Proper error handling.
1960 report_fatal_error("String table must end with a null terminator!");
1963 template<class ELFT>
1964 ELFObjectFile<ELFT>::ELFObjectFile(MemoryBuffer *Object, error_code &ec)
1965 : ObjectFile(getELFType(
1966 static_cast<endianness>(ELFT::TargetEndianness) == support::little,
1970 , isDyldELFObject(false)
1971 , SectionHeaderTable(0)
1972 , dot_shstrtab_sec(0)
1975 , dot_dynamic_sec(0)
1976 , dot_gnu_version_sec(0)
1977 , dot_gnu_version_r_sec(0)
1978 , dot_gnu_version_d_sec(0)
1982 const uint64_t FileSize = Data->getBufferSize();
1984 if (sizeof(Elf_Ehdr) > FileSize)
1985 // FIXME: Proper error handling.
1986 report_fatal_error("File too short!");
1988 Header = reinterpret_cast<const Elf_Ehdr *>(base());
1990 if (Header->e_shoff == 0)
1993 const uint64_t SectionTableOffset = Header->e_shoff;
1995 if (SectionTableOffset + sizeof(Elf_Shdr) > FileSize)
1996 // FIXME: Proper error handling.
1997 report_fatal_error("Section header table goes past end of file!");
1999 // The getNumSections() call below depends on SectionHeaderTable being set.
2000 SectionHeaderTable =
2001 reinterpret_cast<const Elf_Shdr *>(base() + SectionTableOffset);
2002 const uint64_t SectionTableSize = getNumSections() * Header->e_shentsize;
2004 if (SectionTableOffset + SectionTableSize > FileSize)
2005 // FIXME: Proper error handling.
2006 report_fatal_error("Section table goes past end of file!");
2008 // To find the symbol tables we walk the section table to find SHT_SYMTAB.
2009 const Elf_Shdr* SymbolTableSectionHeaderIndex = 0;
2010 const Elf_Shdr* sh = SectionHeaderTable;
2012 // Reserve SymbolTableSections[0] for .dynsym
2013 SymbolTableSections.push_back(NULL);
2015 for (uint64_t i = 0, e = getNumSections(); i != e; ++i) {
2016 switch (sh->sh_type) {
2017 case ELF::SHT_SYMTAB_SHNDX: {
2018 if (SymbolTableSectionHeaderIndex)
2019 // FIXME: Proper error handling.
2020 report_fatal_error("More than one .symtab_shndx!");
2021 SymbolTableSectionHeaderIndex = sh;
2024 case ELF::SHT_SYMTAB: {
2025 SymbolTableSectionsIndexMap[i] = SymbolTableSections.size();
2026 SymbolTableSections.push_back(sh);
2029 case ELF::SHT_DYNSYM: {
2030 if (SymbolTableSections[0] != NULL)
2031 // FIXME: Proper error handling.
2032 report_fatal_error("More than one .dynsym!");
2033 SymbolTableSectionsIndexMap[i] = 0;
2034 SymbolTableSections[0] = sh;
2038 case ELF::SHT_RELA: {
2039 SectionRelocMap[getSection(sh->sh_info)].push_back(i);
2042 case ELF::SHT_DYNAMIC: {
2043 if (dot_dynamic_sec != NULL)
2044 // FIXME: Proper error handling.
2045 report_fatal_error("More than one .dynamic!");
2046 dot_dynamic_sec = sh;
2049 case ELF::SHT_GNU_versym: {
2050 if (dot_gnu_version_sec != NULL)
2051 // FIXME: Proper error handling.
2052 report_fatal_error("More than one .gnu.version section!");
2053 dot_gnu_version_sec = sh;
2056 case ELF::SHT_GNU_verdef: {
2057 if (dot_gnu_version_d_sec != NULL)
2058 // FIXME: Proper error handling.
2059 report_fatal_error("More than one .gnu.version_d section!");
2060 dot_gnu_version_d_sec = sh;
2063 case ELF::SHT_GNU_verneed: {
2064 if (dot_gnu_version_r_sec != NULL)
2065 // FIXME: Proper error handling.
2066 report_fatal_error("More than one .gnu.version_r section!");
2067 dot_gnu_version_r_sec = sh;
2074 // Sort section relocation lists by index.
2075 for (typename RelocMap_t::iterator i = SectionRelocMap.begin(),
2076 e = SectionRelocMap.end(); i != e; ++i) {
2077 std::sort(i->second.begin(), i->second.end());
2080 // Get string table sections.
2081 dot_shstrtab_sec = getSection(getStringTableIndex());
2082 if (dot_shstrtab_sec) {
2083 // Verify that the last byte in the string table in a null.
2084 VerifyStrTab(dot_shstrtab_sec);
2087 // Merge this into the above loop.
2088 for (const char *i = reinterpret_cast<const char *>(SectionHeaderTable),
2089 *e = i + getNumSections() * Header->e_shentsize;
2090 i != e; i += Header->e_shentsize) {
2091 const Elf_Shdr *sh = reinterpret_cast<const Elf_Shdr*>(i);
2092 if (sh->sh_type == ELF::SHT_STRTAB) {
2093 StringRef SectionName(getString(dot_shstrtab_sec, sh->sh_name));
2094 if (SectionName == ".strtab") {
2095 if (dot_strtab_sec != 0)
2096 // FIXME: Proper error handling.
2097 report_fatal_error("Already found section named .strtab!");
2098 dot_strtab_sec = sh;
2099 VerifyStrTab(dot_strtab_sec);
2100 } else if (SectionName == ".dynstr") {
2101 if (dot_dynstr_sec != 0)
2102 // FIXME: Proper error handling.
2103 report_fatal_error("Already found section named .dynstr!");
2104 dot_dynstr_sec = sh;
2105 VerifyStrTab(dot_dynstr_sec);
2110 // Build symbol name side-mapping if there is one.
2111 if (SymbolTableSectionHeaderIndex) {
2112 const Elf_Word *ShndxTable = reinterpret_cast<const Elf_Word*>(base() +
2113 SymbolTableSectionHeaderIndex->sh_offset);
2115 for (symbol_iterator si = begin_symbols(),
2116 se = end_symbols(); si != se; si.increment(ec)) {
2118 report_fatal_error("Fewer extended symbol table entries than symbols!");
2119 if (*ShndxTable != ELF::SHN_UNDEF)
2120 ExtendedSymbolTable[getSymbol(si->getRawDataRefImpl())] = *ShndxTable;
2126 // Get the symbol table index in the symtab section given a symbol
2127 template<class ELFT>
2128 uint64_t ELFObjectFile<ELFT>::getSymbolIndex(const Elf_Sym *Sym) const {
2129 assert(SymbolTableSections.size() == 1 && "Only one symbol table supported!");
2130 const Elf_Shdr *SymTab = *SymbolTableSections.begin();
2131 uintptr_t SymLoc = uintptr_t(Sym);
2132 uintptr_t SymTabLoc = uintptr_t(base() + SymTab->sh_offset);
2133 assert(SymLoc > SymTabLoc && "Symbol not in symbol table!");
2134 uint64_t SymOffset = SymLoc - SymTabLoc;
2135 assert(SymOffset % SymTab->sh_entsize == 0 &&
2136 "Symbol not multiple of symbol size!");
2137 return SymOffset / SymTab->sh_entsize;
2140 template<class ELFT>
2141 symbol_iterator ELFObjectFile<ELFT>::begin_symbols() const {
2142 DataRefImpl SymbolData;
2143 if (SymbolTableSections.size() <= 1) {
2144 SymbolData.d.a = std::numeric_limits<uint32_t>::max();
2145 SymbolData.d.b = std::numeric_limits<uint32_t>::max();
2147 SymbolData.d.a = 1; // The 0th symbol in ELF is fake.
2148 SymbolData.d.b = 1; // The 0th table is .dynsym
2150 return symbol_iterator(SymbolRef(SymbolData, this));
2153 template<class ELFT>
2154 symbol_iterator ELFObjectFile<ELFT>::end_symbols() const {
2155 DataRefImpl SymbolData;
2156 SymbolData.d.a = std::numeric_limits<uint32_t>::max();
2157 SymbolData.d.b = std::numeric_limits<uint32_t>::max();
2158 return symbol_iterator(SymbolRef(SymbolData, this));
2161 template<class ELFT>
2162 symbol_iterator ELFObjectFile<ELFT>::begin_dynamic_symbols() const {
2163 DataRefImpl SymbolData;
2164 if (SymbolTableSections[0] == NULL) {
2165 SymbolData.d.a = std::numeric_limits<uint32_t>::max();
2166 SymbolData.d.b = std::numeric_limits<uint32_t>::max();
2168 SymbolData.d.a = 1; // The 0th symbol in ELF is fake.
2169 SymbolData.d.b = 0; // The 0th table is .dynsym
2171 return symbol_iterator(SymbolRef(SymbolData, this));
2174 template<class ELFT>
2175 symbol_iterator ELFObjectFile<ELFT>::end_dynamic_symbols() const {
2176 DataRefImpl SymbolData;
2177 SymbolData.d.a = std::numeric_limits<uint32_t>::max();
2178 SymbolData.d.b = std::numeric_limits<uint32_t>::max();
2179 return symbol_iterator(SymbolRef(SymbolData, this));
2182 template<class ELFT>
2183 section_iterator ELFObjectFile<ELFT>::begin_sections() const {
2185 ret.p = reinterpret_cast<intptr_t>(base() + Header->e_shoff);
2186 return section_iterator(SectionRef(ret, this));
2189 template<class ELFT>
2190 section_iterator ELFObjectFile<ELFT>::end_sections() const {
2192 ret.p = reinterpret_cast<intptr_t>(base()
2194 + (Header->e_shentsize*getNumSections()));
2195 return section_iterator(SectionRef(ret, this));
2198 template<class ELFT>
2199 typename ELFObjectFile<ELFT>::dyn_iterator
2200 ELFObjectFile<ELFT>::begin_dynamic_table() const {
2201 DataRefImpl DynData;
2202 if (dot_dynamic_sec == NULL || dot_dynamic_sec->sh_size == 0) {
2203 DynData.d.a = std::numeric_limits<uint32_t>::max();
2207 return dyn_iterator(DynRef(DynData, this));
2210 template<class ELFT>
2211 typename ELFObjectFile<ELFT>::dyn_iterator
2212 ELFObjectFile<ELFT>::end_dynamic_table() const {
2213 DataRefImpl DynData;
2214 DynData.d.a = std::numeric_limits<uint32_t>::max();
2215 return dyn_iterator(DynRef(DynData, this));
2218 template<class ELFT>
2219 error_code ELFObjectFile<ELFT>::getDynNext(DataRefImpl DynData,
2220 DynRef &Result) const {
2223 // Check to see if we are at the end of .dynamic
2224 if (DynData.d.a >= dot_dynamic_sec->getEntityCount()) {
2225 // We are at the end. Return the terminator.
2226 DynData.d.a = std::numeric_limits<uint32_t>::max();
2229 Result = DynRef(DynData, this);
2230 return object_error::success;
2233 template<class ELFT>
2235 ELFObjectFile<ELFT>::getLoadName() const {
2237 // Find the DT_SONAME entry
2238 dyn_iterator it = begin_dynamic_table();
2239 dyn_iterator ie = end_dynamic_table();
2242 if (it->getTag() == ELF::DT_SONAME)
2246 report_fatal_error("dynamic table iteration failed");
2249 if (dot_dynstr_sec == NULL)
2250 report_fatal_error("Dynamic string table is missing");
2251 dt_soname = getString(dot_dynstr_sec, it->getVal());
2259 template<class ELFT>
2260 library_iterator ELFObjectFile<ELFT>::begin_libraries_needed() const {
2261 // Find the first DT_NEEDED entry
2262 dyn_iterator i = begin_dynamic_table();
2263 dyn_iterator e = end_dynamic_table();
2266 if (i->getTag() == ELF::DT_NEEDED)
2270 report_fatal_error("dynamic table iteration failed");
2272 // Use the same DataRefImpl format as DynRef.
2273 return library_iterator(LibraryRef(i->getRawDataRefImpl(), this));
2276 template<class ELFT>
2277 error_code ELFObjectFile<ELFT>::getLibraryNext(DataRefImpl Data,
2278 LibraryRef &Result) const {
2279 // Use the same DataRefImpl format as DynRef.
2280 dyn_iterator i = dyn_iterator(DynRef(Data, this));
2281 dyn_iterator e = end_dynamic_table();
2283 // Skip the current dynamic table entry.
2287 // TODO: proper error handling
2289 report_fatal_error("dynamic table iteration failed");
2292 // Find the next DT_NEEDED entry.
2294 if (i->getTag() == ELF::DT_NEEDED)
2298 report_fatal_error("dynamic table iteration failed");
2300 Result = LibraryRef(i->getRawDataRefImpl(), this);
2301 return object_error::success;
2304 template<class ELFT>
2305 error_code ELFObjectFile<ELFT>::getLibraryPath(DataRefImpl Data,
2306 StringRef &Res) const {
2307 dyn_iterator i = dyn_iterator(DynRef(Data, this));
2308 if (i == end_dynamic_table())
2309 report_fatal_error("getLibraryPath() called on iterator end");
2311 if (i->getTag() != ELF::DT_NEEDED)
2312 report_fatal_error("Invalid library_iterator");
2314 // This uses .dynstr to lookup the name of the DT_NEEDED entry.
2315 // THis works as long as DT_STRTAB == .dynstr. This is true most of
2316 // the time, but the specification allows exceptions.
2317 // TODO: This should really use DT_STRTAB instead. Doing this requires
2318 // reading the program headers.
2319 if (dot_dynstr_sec == NULL)
2320 report_fatal_error("Dynamic string table is missing");
2321 Res = getString(dot_dynstr_sec, i->getVal());
2322 return object_error::success;
2325 template<class ELFT>
2326 library_iterator ELFObjectFile<ELFT>::end_libraries_needed() const {
2327 dyn_iterator e = end_dynamic_table();
2328 // Use the same DataRefImpl format as DynRef.
2329 return library_iterator(LibraryRef(e->getRawDataRefImpl(), this));
2332 template<class ELFT>
2333 uint8_t ELFObjectFile<ELFT>::getBytesInAddress() const {
2334 return ELFT::Is64Bits ? 8 : 4;
2337 template<class ELFT>
2338 StringRef ELFObjectFile<ELFT>::getFileFormatName() const {
2339 switch(Header->e_ident[ELF::EI_CLASS]) {
2340 case ELF::ELFCLASS32:
2341 switch(Header->e_machine) {
2343 return "ELF32-i386";
2344 case ELF::EM_X86_64:
2345 return "ELF32-x86-64";
2348 case ELF::EM_HEXAGON:
2349 return "ELF32-hexagon";
2351 return "ELF32-unknown";
2353 case ELF::ELFCLASS64:
2354 switch(Header->e_machine) {
2356 return "ELF64-i386";
2357 case ELF::EM_X86_64:
2358 return "ELF64-x86-64";
2360 return "ELF64-ppc64";
2362 return "ELF64-unknown";
2365 // FIXME: Proper error handling.
2366 report_fatal_error("Invalid ELFCLASS!");
2370 template<class ELFT>
2371 unsigned ELFObjectFile<ELFT>::getArch() const {
2372 switch(Header->e_machine) {
2375 case ELF::EM_X86_64:
2376 return Triple::x86_64;
2379 case ELF::EM_HEXAGON:
2380 return Triple::hexagon;
2382 return (ELFT::TargetEndianness == support::little) ?
2383 Triple::mipsel : Triple::mips;
2385 return Triple::ppc64;
2387 return Triple::UnknownArch;
2391 template<class ELFT>
2392 uint64_t ELFObjectFile<ELFT>::getNumSections() const {
2393 assert(Header && "Header not initialized!");
2394 if (Header->e_shnum == ELF::SHN_UNDEF) {
2395 assert(SectionHeaderTable && "SectionHeaderTable not initialized!");
2396 return SectionHeaderTable->sh_size;
2398 return Header->e_shnum;
2401 template<class ELFT>
2403 ELFObjectFile<ELFT>::getStringTableIndex() const {
2404 if (Header->e_shnum == ELF::SHN_UNDEF) {
2405 if (Header->e_shstrndx == ELF::SHN_HIRESERVE)
2406 return SectionHeaderTable->sh_link;
2407 if (Header->e_shstrndx >= getNumSections())
2410 return Header->e_shstrndx;
2413 template<class ELFT>
2414 template<typename T>
2416 ELFObjectFile<ELFT>::getEntry(uint16_t Section, uint32_t Entry) const {
2417 return getEntry<T>(getSection(Section), Entry);
2420 template<class ELFT>
2421 template<typename T>
2423 ELFObjectFile<ELFT>::getEntry(const Elf_Shdr * Section, uint32_t Entry) const {
2424 return reinterpret_cast<const T *>(
2426 + Section->sh_offset
2427 + (Entry * Section->sh_entsize));
2430 template<class ELFT>
2431 const typename ELFObjectFile<ELFT>::Elf_Sym *
2432 ELFObjectFile<ELFT>::getSymbol(DataRefImpl Symb) const {
2433 return getEntry<Elf_Sym>(SymbolTableSections[Symb.d.b], Symb.d.a);
2436 template<class ELFT>
2437 const typename ELFObjectFile<ELFT>::Elf_Dyn *
2438 ELFObjectFile<ELFT>::getDyn(DataRefImpl DynData) const {
2439 return getEntry<Elf_Dyn>(dot_dynamic_sec, DynData.d.a);
2442 template<class ELFT>
2443 const typename ELFObjectFile<ELFT>::Elf_Rel *
2444 ELFObjectFile<ELFT>::getRel(DataRefImpl Rel) const {
2445 return getEntry<Elf_Rel>(Rel.w.b, Rel.w.c);
2448 template<class ELFT>
2449 const typename ELFObjectFile<ELFT>::Elf_Rela *
2450 ELFObjectFile<ELFT>::getRela(DataRefImpl Rela) const {
2451 return getEntry<Elf_Rela>(Rela.w.b, Rela.w.c);
2454 template<class ELFT>
2455 const typename ELFObjectFile<ELFT>::Elf_Shdr *
2456 ELFObjectFile<ELFT>::getSection(DataRefImpl Symb) const {
2457 const Elf_Shdr *sec = getSection(Symb.d.b);
2458 if (sec->sh_type != ELF::SHT_SYMTAB || sec->sh_type != ELF::SHT_DYNSYM)
2459 // FIXME: Proper error handling.
2460 report_fatal_error("Invalid symbol table section!");
2464 template<class ELFT>
2465 const typename ELFObjectFile<ELFT>::Elf_Shdr *
2466 ELFObjectFile<ELFT>::getSection(uint32_t index) const {
2469 if (!SectionHeaderTable || index >= getNumSections())
2470 // FIXME: Proper error handling.
2471 report_fatal_error("Invalid section index!");
2473 return reinterpret_cast<const Elf_Shdr *>(
2474 reinterpret_cast<const char *>(SectionHeaderTable)
2475 + (index * Header->e_shentsize));
2478 template<class ELFT>
2479 const char *ELFObjectFile<ELFT>::getString(uint32_t section,
2480 ELF::Elf32_Word offset) const {
2481 return getString(getSection(section), offset);
2484 template<class ELFT>
2485 const char *ELFObjectFile<ELFT>::getString(const Elf_Shdr *section,
2486 ELF::Elf32_Word offset) const {
2487 assert(section && section->sh_type == ELF::SHT_STRTAB && "Invalid section!");
2488 if (offset >= section->sh_size)
2489 // FIXME: Proper error handling.
2490 report_fatal_error("Symbol name offset outside of string table!");
2491 return (const char *)base() + section->sh_offset + offset;
2494 template<class ELFT>
2495 error_code ELFObjectFile<ELFT>::getSymbolName(const Elf_Shdr *section,
2496 const Elf_Sym *symb,
2497 StringRef &Result) const {
2498 if (symb->st_name == 0) {
2499 const Elf_Shdr *section = getSection(symb);
2503 Result = getString(dot_shstrtab_sec, section->sh_name);
2504 return object_error::success;
2507 if (section == SymbolTableSections[0]) {
2508 // Symbol is in .dynsym, use .dynstr string table
2509 Result = getString(dot_dynstr_sec, symb->st_name);
2511 // Use the default symbol table name section.
2512 Result = getString(dot_strtab_sec, symb->st_name);
2514 return object_error::success;
2517 template<class ELFT>
2518 error_code ELFObjectFile<ELFT>::getSectionName(const Elf_Shdr *section,
2519 StringRef &Result) const {
2520 Result = StringRef(getString(dot_shstrtab_sec, section->sh_name));
2521 return object_error::success;
2524 template<class ELFT>
2525 error_code ELFObjectFile<ELFT>::getSymbolVersion(const Elf_Shdr *section,
2526 const Elf_Sym *symb,
2528 bool &IsDefault) const {
2529 // Handle non-dynamic symbols.
2530 if (section != SymbolTableSections[0]) {
2531 // Non-dynamic symbols can have versions in their names
2532 // A name of the form 'foo@V1' indicates version 'V1', non-default.
2533 // A name of the form 'foo@@V2' indicates version 'V2', default version.
2535 error_code ec = getSymbolName(section, symb, Name);
2536 if (ec != object_error::success)
2538 size_t atpos = Name.find('@');
2539 if (atpos == StringRef::npos) {
2542 return object_error::success;
2545 if (atpos < Name.size() && Name[atpos] == '@') {
2551 Version = Name.substr(atpos);
2552 return object_error::success;
2555 // This is a dynamic symbol. Look in the GNU symbol version table.
2556 if (dot_gnu_version_sec == NULL) {
2557 // No version table.
2560 return object_error::success;
2563 // Determine the position in the symbol table of this entry.
2564 const char *sec_start = (const char*)base() + section->sh_offset;
2565 size_t entry_index = ((const char*)symb - sec_start)/section->sh_entsize;
2567 // Get the corresponding version index entry
2568 const Elf_Versym *vs = getEntry<Elf_Versym>(dot_gnu_version_sec, entry_index);
2569 size_t version_index = vs->vs_index & ELF::VERSYM_VERSION;
2571 // Special markers for unversioned symbols.
2572 if (version_index == ELF::VER_NDX_LOCAL ||
2573 version_index == ELF::VER_NDX_GLOBAL) {
2576 return object_error::success;
2579 // Lookup this symbol in the version table
2581 if (version_index >= VersionMap.size() || VersionMap[version_index].isNull())
2582 report_fatal_error("Symbol has version index without corresponding "
2583 "define or reference entry");
2584 const VersionMapEntry &entry = VersionMap[version_index];
2586 // Get the version name string
2588 if (entry.isVerdef()) {
2589 // The first Verdaux entry holds the name.
2590 name_offset = entry.getVerdef()->getAux()->vda_name;
2592 name_offset = entry.getVernaux()->vna_name;
2594 Version = getString(dot_dynstr_sec, name_offset);
2597 if (entry.isVerdef()) {
2598 IsDefault = !(vs->vs_index & ELF::VERSYM_HIDDEN);
2603 return object_error::success;
2606 template<class ELFT>
2607 inline DynRefImpl<ELFT>::DynRefImpl(DataRefImpl DynP, const OwningType *Owner)
2609 , OwningObject(Owner) {}
2611 template<class ELFT>
2612 inline bool DynRefImpl<ELFT>::operator==(const DynRefImpl &Other) const {
2613 return DynPimpl == Other.DynPimpl;
2616 template<class ELFT>
2617 inline bool DynRefImpl<ELFT>::operator <(const DynRefImpl &Other) const {
2618 return DynPimpl < Other.DynPimpl;
2621 template<class ELFT>
2622 inline error_code DynRefImpl<ELFT>::getNext(DynRefImpl &Result) const {
2623 return OwningObject->getDynNext(DynPimpl, Result);
2626 template<class ELFT>
2627 inline int64_t DynRefImpl<ELFT>::getTag() const {
2628 return OwningObject->getDyn(DynPimpl)->d_tag;
2631 template<class ELFT>
2632 inline uint64_t DynRefImpl<ELFT>::getVal() const {
2633 return OwningObject->getDyn(DynPimpl)->d_un.d_val;
2636 template<class ELFT>
2637 inline uint64_t DynRefImpl<ELFT>::getPtr() const {
2638 return OwningObject->getDyn(DynPimpl)->d_un.d_ptr;
2641 template<class ELFT>
2642 inline DataRefImpl DynRefImpl<ELFT>::getRawDataRefImpl() const {
2646 /// This is a generic interface for retrieving GNU symbol version
2647 /// information from an ELFObjectFile.
2648 static inline error_code GetELFSymbolVersion(const ObjectFile *Obj,
2649 const SymbolRef &Sym,
2652 // Little-endian 32-bit
2653 if (const ELFObjectFile<ELFType<support::little, 4, false> > *ELFObj =
2654 dyn_cast<ELFObjectFile<ELFType<support::little, 4, false> > >(Obj))
2655 return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
2657 // Big-endian 32-bit
2658 if (const ELFObjectFile<ELFType<support::big, 4, false> > *ELFObj =
2659 dyn_cast<ELFObjectFile<ELFType<support::big, 4, false> > >(Obj))
2660 return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
2662 // Little-endian 64-bit
2663 if (const ELFObjectFile<ELFType<support::little, 8, true> > *ELFObj =
2664 dyn_cast<ELFObjectFile<ELFType<support::little, 8, true> > >(Obj))
2665 return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
2667 // Big-endian 64-bit
2668 if (const ELFObjectFile<ELFType<support::big, 8, true> > *ELFObj =
2669 dyn_cast<ELFObjectFile<ELFType<support::big, 8, true> > >(Obj))
2670 return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
2672 llvm_unreachable("Object passed to GetELFSymbolVersion() is not ELF");