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>
40 static const endianness TargetEndianness = target_endianness;
41 static const std::size_t MaxAlignment = max_alignment;
42 static const bool Is64Bits = is64Bits;
45 template<typename T, int max_align>
46 struct MaximumAlignment {
47 enum {value = AlignOf<T>::Alignment > max_align ? max_align
48 : AlignOf<T>::Alignment};
51 // Subclasses of ELFObjectFile may need this for template instantiation
52 inline std::pair<unsigned char, unsigned char>
53 getElfArchType(MemoryBuffer *Object) {
54 if (Object->getBufferSize() < ELF::EI_NIDENT)
55 return std::make_pair((uint8_t)ELF::ELFCLASSNONE,(uint8_t)ELF::ELFDATANONE);
56 return std::make_pair( (uint8_t)Object->getBufferStart()[ELF::EI_CLASS]
57 , (uint8_t)Object->getBufferStart()[ELF::EI_DATA]);
60 // Templates to choose Elf_Addr and Elf_Off depending on is64Bits.
61 template<endianness target_endianness, std::size_t max_alignment>
62 struct ELFDataTypeTypedefHelperCommon {
63 typedef support::detail::packed_endian_specific_integral
64 <uint16_t, target_endianness,
65 MaximumAlignment<uint16_t, max_alignment>::value> Elf_Half;
66 typedef support::detail::packed_endian_specific_integral
67 <uint32_t, target_endianness,
68 MaximumAlignment<uint32_t, max_alignment>::value> Elf_Word;
69 typedef support::detail::packed_endian_specific_integral
70 <int32_t, target_endianness,
71 MaximumAlignment<int32_t, max_alignment>::value> Elf_Sword;
72 typedef support::detail::packed_endian_specific_integral
73 <uint64_t, target_endianness,
74 MaximumAlignment<uint64_t, max_alignment>::value> Elf_Xword;
75 typedef support::detail::packed_endian_specific_integral
76 <int64_t, target_endianness,
77 MaximumAlignment<int64_t, max_alignment>::value> Elf_Sxword;
81 struct ELFDataTypeTypedefHelper;
84 template<template<endianness, std::size_t, bool> class ELFT,
85 endianness TargetEndianness, std::size_t MaxAlign>
86 struct ELFDataTypeTypedefHelper<ELFT<TargetEndianness, MaxAlign, false> >
87 : ELFDataTypeTypedefHelperCommon<TargetEndianness, MaxAlign> {
88 typedef uint32_t value_type;
89 typedef support::detail::packed_endian_specific_integral
90 <value_type, TargetEndianness,
91 MaximumAlignment<value_type, MaxAlign>::value> Elf_Addr;
92 typedef support::detail::packed_endian_specific_integral
93 <value_type, TargetEndianness,
94 MaximumAlignment<value_type, MaxAlign>::value> Elf_Off;
98 template<template<endianness, std::size_t, bool> class ELFT,
99 endianness TargetEndianness, std::size_t MaxAlign>
100 struct ELFDataTypeTypedefHelper<ELFT<TargetEndianness, MaxAlign, true> >
101 : ELFDataTypeTypedefHelperCommon<TargetEndianness, MaxAlign> {
102 typedef uint64_t value_type;
103 typedef support::detail::packed_endian_specific_integral
104 <value_type, TargetEndianness,
105 MaximumAlignment<value_type, MaxAlign>::value> Elf_Addr;
106 typedef support::detail::packed_endian_specific_integral
107 <value_type, TargetEndianness,
108 MaximumAlignment<value_type, MaxAlign>::value> Elf_Off;
111 // I really don't like doing this, but the alternative is copypasta.
112 #define LLVM_ELF_IMPORT_TYPES(ELFT) \
113 typedef typename ELFDataTypeTypedefHelper <ELFT>::Elf_Addr Elf_Addr; \
114 typedef typename ELFDataTypeTypedefHelper <ELFT>::Elf_Off Elf_Off; \
115 typedef typename ELFDataTypeTypedefHelper <ELFT>::Elf_Half Elf_Half; \
116 typedef typename ELFDataTypeTypedefHelper <ELFT>::Elf_Word Elf_Word; \
117 typedef typename ELFDataTypeTypedefHelper <ELFT>::Elf_Sword Elf_Sword; \
118 typedef typename ELFDataTypeTypedefHelper <ELFT>::Elf_Xword Elf_Xword; \
119 typedef typename ELFDataTypeTypedefHelper <ELFT>::Elf_Sxword Elf_Sxword;
121 // This is required to get template types into a macro :(
122 #define LLVM_ELF_COMMA ,
126 struct Elf_Shdr_Base;
128 template<template<endianness, std::size_t, bool> class ELFT,
129 endianness TargetEndianness, std::size_t MaxAlign>
130 struct Elf_Shdr_Base<ELFT<TargetEndianness, MaxAlign, false> > {
131 LLVM_ELF_IMPORT_TYPES(ELFT<TargetEndianness LLVM_ELF_COMMA
132 MaxAlign LLVM_ELF_COMMA false>)
133 Elf_Word sh_name; // Section name (index into string table)
134 Elf_Word sh_type; // Section type (SHT_*)
135 Elf_Word sh_flags; // Section flags (SHF_*)
136 Elf_Addr sh_addr; // Address where section is to be loaded
137 Elf_Off sh_offset; // File offset of section data, in bytes
138 Elf_Word sh_size; // Size of section, in bytes
139 Elf_Word sh_link; // Section type-specific header table index link
140 Elf_Word sh_info; // Section type-specific extra information
141 Elf_Word sh_addralign;// Section address alignment
142 Elf_Word sh_entsize; // Size of records contained within the section
145 template<template<endianness, std::size_t, bool> class ELFT,
146 endianness TargetEndianness, std::size_t MaxAlign>
147 struct Elf_Shdr_Base<ELFT<TargetEndianness, MaxAlign, true> > {
148 LLVM_ELF_IMPORT_TYPES(ELFT<TargetEndianness LLVM_ELF_COMMA
149 MaxAlign LLVM_ELF_COMMA true>)
150 Elf_Word sh_name; // Section name (index into string table)
151 Elf_Word sh_type; // Section type (SHT_*)
152 Elf_Xword sh_flags; // Section flags (SHF_*)
153 Elf_Addr sh_addr; // Address where section is to be loaded
154 Elf_Off sh_offset; // File offset of section data, in bytes
155 Elf_Xword sh_size; // Size of section, in bytes
156 Elf_Word sh_link; // Section type-specific header table index link
157 Elf_Word sh_info; // Section type-specific extra information
158 Elf_Xword sh_addralign;// Section address alignment
159 Elf_Xword sh_entsize; // Size of records contained within the section
163 struct Elf_Shdr_Impl : Elf_Shdr_Base<ELFT> {
164 using Elf_Shdr_Base<ELFT>::sh_entsize;
165 using Elf_Shdr_Base<ELFT>::sh_size;
167 /// @brief Get the number of entities this section contains if it has any.
168 unsigned getEntityCount() const {
171 return sh_size / sh_entsize;
178 template<template<endianness, std::size_t, bool> class ELFT,
179 endianness TargetEndianness, std::size_t MaxAlign>
180 struct Elf_Sym_Base<ELFT<TargetEndianness, MaxAlign, false> > {
181 LLVM_ELF_IMPORT_TYPES(ELFT<TargetEndianness LLVM_ELF_COMMA
182 MaxAlign LLVM_ELF_COMMA false>)
183 Elf_Word st_name; // Symbol name (index into string table)
184 Elf_Addr st_value; // Value or address associated with the symbol
185 Elf_Word st_size; // Size of the symbol
186 unsigned char st_info; // Symbol's type and binding attributes
187 unsigned char st_other; // Must be zero; reserved
188 Elf_Half st_shndx; // Which section (header table index) it's defined in
191 template<template<endianness, std::size_t, bool> class ELFT,
192 endianness TargetEndianness, std::size_t MaxAlign>
193 struct Elf_Sym_Base<ELFT<TargetEndianness, MaxAlign, true> > {
194 LLVM_ELF_IMPORT_TYPES(ELFT<TargetEndianness LLVM_ELF_COMMA
195 MaxAlign LLVM_ELF_COMMA true>)
196 Elf_Word st_name; // Symbol name (index into string table)
197 unsigned char st_info; // Symbol's type and binding attributes
198 unsigned char st_other; // Must be zero; reserved
199 Elf_Half st_shndx; // Which section (header table index) it's defined in
200 Elf_Addr st_value; // Value or address associated with the symbol
201 Elf_Xword st_size; // Size of the symbol
205 struct Elf_Sym_Impl : Elf_Sym_Base<ELFT> {
206 using Elf_Sym_Base<ELFT>::st_info;
208 // These accessors and mutators correspond to the ELF32_ST_BIND,
209 // ELF32_ST_TYPE, and ELF32_ST_INFO macros defined in the ELF specification:
210 unsigned char getBinding() const { return st_info >> 4; }
211 unsigned char getType() const { return st_info & 0x0f; }
212 void setBinding(unsigned char b) { setBindingAndType(b, getType()); }
213 void setType(unsigned char t) { setBindingAndType(getBinding(), t); }
214 void setBindingAndType(unsigned char b, unsigned char t) {
215 st_info = (b << 4) + (t & 0x0f);
219 /// Elf_Versym: This is the structure of entries in the SHT_GNU_versym section
220 /// (.gnu.version). This structure is identical for ELF32 and ELF64.
222 struct Elf_Versym_Impl {
223 LLVM_ELF_IMPORT_TYPES(ELFT)
224 Elf_Half vs_index; // Version index with flags (e.g. VERSYM_HIDDEN)
228 struct Elf_Verdaux_Impl;
230 /// Elf_Verdef: This is the structure of entries in the SHT_GNU_verdef section
231 /// (.gnu.version_d). This structure is identical for ELF32 and ELF64.
233 struct Elf_Verdef_Impl {
234 LLVM_ELF_IMPORT_TYPES(ELFT)
235 typedef Elf_Verdaux_Impl<ELFT> Elf_Verdaux;
236 Elf_Half vd_version; // Version of this structure (e.g. VER_DEF_CURRENT)
237 Elf_Half vd_flags; // Bitwise flags (VER_DEF_*)
238 Elf_Half vd_ndx; // Version index, used in .gnu.version entries
239 Elf_Half vd_cnt; // Number of Verdaux entries
240 Elf_Word vd_hash; // Hash of name
241 Elf_Word vd_aux; // Offset to the first Verdaux entry (in bytes)
242 Elf_Word vd_next; // Offset to the next Verdef entry (in bytes)
244 /// Get the first Verdaux entry for this Verdef.
245 const Elf_Verdaux *getAux() const {
246 return reinterpret_cast<const Elf_Verdaux*>((const char*)this + vd_aux);
250 /// Elf_Verdaux: This is the structure of auxiliary data in the SHT_GNU_verdef
251 /// section (.gnu.version_d). This structure is identical for ELF32 and ELF64.
253 struct Elf_Verdaux_Impl {
254 LLVM_ELF_IMPORT_TYPES(ELFT)
255 Elf_Word vda_name; // Version name (offset in string table)
256 Elf_Word vda_next; // Offset to next Verdaux entry (in bytes)
259 /// Elf_Verneed: This is the structure of entries in the SHT_GNU_verneed
260 /// section (.gnu.version_r). This structure is identical for ELF32 and ELF64.
262 struct Elf_Verneed_Impl {
263 LLVM_ELF_IMPORT_TYPES(ELFT)
264 Elf_Half vn_version; // Version of this structure (e.g. VER_NEED_CURRENT)
265 Elf_Half vn_cnt; // Number of associated Vernaux entries
266 Elf_Word vn_file; // Library name (string table offset)
267 Elf_Word vn_aux; // Offset to first Vernaux entry (in bytes)
268 Elf_Word vn_next; // Offset to next Verneed entry (in bytes)
271 /// Elf_Vernaux: This is the structure of auxiliary data in SHT_GNU_verneed
272 /// section (.gnu.version_r). This structure is identical for ELF32 and ELF64.
274 struct Elf_Vernaux_Impl {
275 LLVM_ELF_IMPORT_TYPES(ELFT)
276 Elf_Word vna_hash; // Hash of dependency name
277 Elf_Half vna_flags; // Bitwise Flags (VER_FLAG_*)
278 Elf_Half vna_other; // Version index, used in .gnu.version entries
279 Elf_Word vna_name; // Dependency name
280 Elf_Word vna_next; // Offset to next Vernaux entry (in bytes)
283 /// Elf_Dyn_Base: This structure matches the form of entries in the dynamic
284 /// table section (.dynamic) look like.
288 template<template<endianness, std::size_t, bool> class ELFT,
289 endianness TargetEndianness, std::size_t MaxAlign>
290 struct Elf_Dyn_Base<ELFT<TargetEndianness, MaxAlign, false> > {
291 LLVM_ELF_IMPORT_TYPES(ELFT<TargetEndianness LLVM_ELF_COMMA
292 MaxAlign LLVM_ELF_COMMA false>)
300 template<template<endianness, std::size_t, bool> class ELFT,
301 endianness TargetEndianness, std::size_t MaxAlign>
302 struct Elf_Dyn_Base<ELFT<TargetEndianness, MaxAlign, true> > {
303 LLVM_ELF_IMPORT_TYPES(ELFT<TargetEndianness LLVM_ELF_COMMA
304 MaxAlign LLVM_ELF_COMMA true>)
312 /// Elf_Dyn_Impl: This inherits from Elf_Dyn_Base, adding getters and setters.
314 struct Elf_Dyn_Impl : Elf_Dyn_Base<ELFT> {
315 using Elf_Dyn_Base<ELFT>::d_tag;
316 using Elf_Dyn_Base<ELFT>::d_un;
317 int64_t getTag() const { return d_tag; }
318 uint64_t getVal() const { return d_un.d_val; }
319 uint64_t getPtr() const { return d_un.ptr; }
322 // Elf_Rel: Elf Relocation
323 template<class ELFT, bool isRela>
326 template<template<endianness, std::size_t, bool> class ELFT,
327 endianness TargetEndianness, std::size_t MaxAlign>
328 struct Elf_Rel_Base<ELFT<TargetEndianness, MaxAlign, false>, false> {
329 LLVM_ELF_IMPORT_TYPES(ELFT<TargetEndianness LLVM_ELF_COMMA
330 MaxAlign LLVM_ELF_COMMA false>)
331 Elf_Addr r_offset; // Location (file byte offset, or program virtual addr)
332 Elf_Word r_info; // Symbol table index and type of relocation to apply
334 uint32_t getRInfo(bool isMips64EL) const {
338 void setRInfo(uint32_t R) {
343 template<template<endianness, std::size_t, bool> class ELFT,
344 endianness TargetEndianness, std::size_t MaxAlign>
345 struct Elf_Rel_Base<ELFT<TargetEndianness, MaxAlign, true>, false> {
346 LLVM_ELF_IMPORT_TYPES(ELFT<TargetEndianness LLVM_ELF_COMMA
347 MaxAlign LLVM_ELF_COMMA true>)
348 Elf_Addr r_offset; // Location (file byte offset, or program virtual addr)
349 Elf_Xword r_info; // Symbol table index and type of relocation to apply
351 uint64_t getRInfo(bool isMips64EL) const {
355 // Mip64 little endian has a "special" encoding of r_info. Instead of one
356 // 64 bit little endian number, it is a little ending 32 bit number followed
357 // by a 32 bit big endian number.
358 return (t << 32) | ((t >> 8) & 0xff000000) | ((t >> 24) & 0x00ff0000) |
359 ((t >> 40) & 0x0000ff00) | ((t >> 56) & 0x000000ff);
362 void setRInfo(uint64_t R) {
363 // FIXME: Add mips64el support.
368 template<template<endianness, std::size_t, bool> class ELFT,
369 endianness TargetEndianness, std::size_t MaxAlign>
370 struct Elf_Rel_Base<ELFT<TargetEndianness, MaxAlign, false>, true> {
371 LLVM_ELF_IMPORT_TYPES(ELFT<TargetEndianness LLVM_ELF_COMMA
372 MaxAlign LLVM_ELF_COMMA false>)
373 Elf_Addr r_offset; // Location (file byte offset, or program virtual addr)
374 Elf_Word r_info; // Symbol table index and type of relocation to apply
375 Elf_Sword r_addend; // Compute value for relocatable field by adding this
377 uint32_t getRInfo(bool isMips64EL) const {
381 void setRInfo(uint32_t R) {
386 template<template<endianness, std::size_t, bool> class ELFT,
387 endianness TargetEndianness, std::size_t MaxAlign>
388 struct Elf_Rel_Base<ELFT<TargetEndianness, MaxAlign, true>, true> {
389 LLVM_ELF_IMPORT_TYPES(ELFT<TargetEndianness LLVM_ELF_COMMA
390 MaxAlign LLVM_ELF_COMMA true>)
391 Elf_Addr r_offset; // Location (file byte offset, or program virtual addr)
392 Elf_Xword r_info; // Symbol table index and type of relocation to apply
393 Elf_Sxword r_addend; // Compute value for relocatable field by adding this.
395 uint64_t getRInfo(bool isMips64EL) const {
396 // Mip64 little endian has a "special" encoding of r_info. Instead of one
397 // 64 bit little endian number, it is a little ending 32 bit number followed
398 // by a 32 bit big endian number.
402 return (t << 32) | ((t >> 8) & 0xff000000) | ((t >> 24) & 0x00ff0000) |
403 ((t >> 40) & 0x0000ff00) | ((t >> 56) & 0x000000ff);
405 void setRInfo(uint64_t R) {
406 // FIXME: Add mips64el support.
411 template<class ELFT, bool isRela>
414 template<template<endianness, std::size_t, bool> class ELFT,
415 endianness TargetEndianness, std::size_t MaxAlign, bool isRela>
416 struct Elf_Rel_Impl<ELFT<TargetEndianness, MaxAlign, true>, isRela>
417 : Elf_Rel_Base<ELFT<TargetEndianness, MaxAlign, true>, isRela> {
418 LLVM_ELF_IMPORT_TYPES(ELFT<TargetEndianness LLVM_ELF_COMMA
419 MaxAlign LLVM_ELF_COMMA true>)
421 // These accessors and mutators correspond to the ELF64_R_SYM, ELF64_R_TYPE,
422 // and ELF64_R_INFO macros defined in the ELF specification:
423 uint32_t getSymbol(bool isMips64EL) const {
424 return (uint32_t) (this->getRInfo(isMips64EL) >> 32);
426 uint32_t getType(bool isMips64EL) const {
427 return (uint32_t) (this->getRInfo(isMips64EL) & 0xffffffffL);
429 void setSymbol(uint32_t s) { setSymbolAndType(s, getType()); }
430 void setType(uint32_t t) { setSymbolAndType(getSymbol(), t); }
431 void setSymbolAndType(uint32_t s, uint32_t t) {
432 this->setRInfo(((uint64_t)s << 32) + (t&0xffffffffL));
436 template<template<endianness, std::size_t, bool> class ELFT,
437 endianness TargetEndianness, std::size_t MaxAlign, bool isRela>
438 struct Elf_Rel_Impl<ELFT<TargetEndianness, MaxAlign, false>, isRela>
439 : Elf_Rel_Base<ELFT<TargetEndianness, MaxAlign, false>, isRela> {
440 LLVM_ELF_IMPORT_TYPES(ELFT<TargetEndianness LLVM_ELF_COMMA
441 MaxAlign LLVM_ELF_COMMA false>)
443 // These accessors and mutators correspond to the ELF32_R_SYM, ELF32_R_TYPE,
444 // and ELF32_R_INFO macros defined in the ELF specification:
445 uint32_t getSymbol(bool isMips64EL) const {
446 return this->getRInfo(isMips64EL) >> 8;
448 unsigned char getType(bool isMips64EL) const {
449 return (unsigned char) (this->getRInfo(isMips64EL) & 0x0ff);
451 void setSymbol(uint32_t s) { setSymbolAndType(s, getType()); }
452 void setType(unsigned char t) { setSymbolAndType(getSymbol(), t); }
453 void setSymbolAndType(uint32_t s, unsigned char t) {
454 this->setRInfo((s << 8) + t);
459 struct Elf_Ehdr_Impl {
460 LLVM_ELF_IMPORT_TYPES(ELFT)
461 unsigned char e_ident[ELF::EI_NIDENT]; // ELF Identification bytes
462 Elf_Half e_type; // Type of file (see ET_*)
463 Elf_Half e_machine; // Required architecture for this file (see EM_*)
464 Elf_Word e_version; // Must be equal to 1
465 Elf_Addr e_entry; // Address to jump to in order to start program
466 Elf_Off e_phoff; // Program header table's file offset, in bytes
467 Elf_Off e_shoff; // Section header table's file offset, in bytes
468 Elf_Word e_flags; // Processor-specific flags
469 Elf_Half e_ehsize; // Size of ELF header, in bytes
470 Elf_Half e_phentsize;// Size of an entry in the program header table
471 Elf_Half e_phnum; // Number of entries in the program header table
472 Elf_Half e_shentsize;// Size of an entry in the section header table
473 Elf_Half e_shnum; // Number of entries in the section header table
474 Elf_Half e_shstrndx; // Section header table index of section name
476 bool checkMagic() const {
477 return (memcmp(e_ident, ELF::ElfMagic, strlen(ELF::ElfMagic))) == 0;
479 unsigned char getFileClass() const { return e_ident[ELF::EI_CLASS]; }
480 unsigned char getDataEncoding() const { return e_ident[ELF::EI_DATA]; }
484 struct Elf_Phdr_Impl;
486 template<template<endianness, std::size_t, bool> class ELFT,
487 endianness TargetEndianness, std::size_t MaxAlign>
488 struct Elf_Phdr_Impl<ELFT<TargetEndianness, MaxAlign, false> > {
489 LLVM_ELF_IMPORT_TYPES(ELFT<TargetEndianness LLVM_ELF_COMMA
490 MaxAlign LLVM_ELF_COMMA false>)
491 Elf_Word p_type; // Type of segment
492 Elf_Off p_offset; // FileOffset where segment is located, in bytes
493 Elf_Addr p_vaddr; // Virtual Address of beginning of segment
494 Elf_Addr p_paddr; // Physical address of beginning of segment (OS-specific)
495 Elf_Word p_filesz; // Num. of bytes in file image of segment (may be zero)
496 Elf_Word p_memsz; // Num. of bytes in mem image of segment (may be zero)
497 Elf_Word p_flags; // Segment flags
498 Elf_Word p_align; // Segment alignment constraint
501 template<template<endianness, std::size_t, bool> class ELFT,
502 endianness TargetEndianness, std::size_t MaxAlign>
503 struct Elf_Phdr_Impl<ELFT<TargetEndianness, MaxAlign, true> > {
504 LLVM_ELF_IMPORT_TYPES(ELFT<TargetEndianness LLVM_ELF_COMMA
505 MaxAlign LLVM_ELF_COMMA true>)
506 Elf_Word p_type; // Type of segment
507 Elf_Word p_flags; // Segment flags
508 Elf_Off p_offset; // FileOffset where segment is located, in bytes
509 Elf_Addr p_vaddr; // Virtual Address of beginning of segment
510 Elf_Addr p_paddr; // Physical address of beginning of segment (OS-specific)
511 Elf_Xword p_filesz; // Num. of bytes in file image of segment (may be zero)
512 Elf_Xword p_memsz; // Num. of bytes in mem image of segment (may be zero)
513 Elf_Xword p_align; // Segment alignment constraint
517 class ELFObjectFile : public ObjectFile {
518 LLVM_ELF_IMPORT_TYPES(ELFT)
521 /// \brief Iterate over constant sized entities.
523 class ELFEntityIterator {
525 typedef ptrdiff_t difference_type;
526 typedef EntT value_type;
527 typedef std::random_access_iterator_tag iterator_category;
528 typedef value_type &reference;
529 typedef value_type *pointer;
531 /// \brief Default construct iterator.
532 ELFEntityIterator() : EntitySize(0), Current(0) {}
533 ELFEntityIterator(uint64_t EntSize, const char *Start)
534 : EntitySize(EntSize)
537 reference operator *() {
538 assert(Current && "Attempted to dereference an invalid iterator!");
539 return *reinterpret_cast<pointer>(Current);
542 pointer operator ->() {
543 assert(Current && "Attempted to dereference an invalid iterator!");
544 return reinterpret_cast<pointer>(Current);
547 bool operator ==(const ELFEntityIterator &Other) {
548 return Current == Other.Current;
551 bool operator !=(const ELFEntityIterator &Other) {
552 return !(*this == Other);
555 ELFEntityIterator &operator ++() {
556 assert(Current && "Attempted to increment an invalid iterator!");
557 Current += EntitySize;
561 ELFEntityIterator operator ++(int) {
562 ELFEntityIterator Tmp = *this;
567 ELFEntityIterator &operator =(const ELFEntityIterator &Other) {
568 EntitySize = Other.EntitySize;
569 Current = Other.Current;
573 difference_type operator -(const ELFEntityIterator &Other) const {
574 assert(EntitySize == Other.EntitySize &&
575 "Subtracting iterators of different EntitiySize!");
576 return (Current - Other.Current) / EntitySize;
579 const char *get() const { return Current; }
586 typedef Elf_Ehdr_Impl<ELFT> Elf_Ehdr;
587 typedef Elf_Shdr_Impl<ELFT> Elf_Shdr;
588 typedef Elf_Sym_Impl<ELFT> Elf_Sym;
589 typedef Elf_Dyn_Impl<ELFT> Elf_Dyn;
590 typedef Elf_Phdr_Impl<ELFT> Elf_Phdr;
591 typedef Elf_Rel_Impl<ELFT, false> Elf_Rel;
592 typedef Elf_Rel_Impl<ELFT, true> Elf_Rela;
593 typedef Elf_Verdef_Impl<ELFT> Elf_Verdef;
594 typedef Elf_Verdaux_Impl<ELFT> Elf_Verdaux;
595 typedef Elf_Verneed_Impl<ELFT> Elf_Verneed;
596 typedef Elf_Vernaux_Impl<ELFT> Elf_Vernaux;
597 typedef Elf_Versym_Impl<ELFT> Elf_Versym;
598 typedef ELFEntityIterator<const Elf_Dyn> Elf_Dyn_iterator;
599 typedef ELFEntityIterator<const Elf_Sym> Elf_Sym_iterator;
600 typedef ELFEntityIterator<const Elf_Rela> Elf_Rela_Iter;
601 typedef ELFEntityIterator<const Elf_Rel> Elf_Rel_Iter;
604 // This flag is used for classof, to distinguish ELFObjectFile from
605 // its subclass. If more subclasses will be created, this flag will
606 // have to become an enum.
607 bool isDyldELFObject;
610 typedef SmallVector<const Elf_Shdr *, 2> Sections_t;
611 typedef DenseMap<unsigned, unsigned> IndexMap_t;
612 typedef DenseMap<const Elf_Shdr*, SmallVector<uint32_t, 1> > RelocMap_t;
614 const Elf_Ehdr *Header;
615 const Elf_Shdr *SectionHeaderTable;
616 const Elf_Shdr *dot_shstrtab_sec; // Section header string table.
617 const Elf_Shdr *dot_strtab_sec; // Symbol header string table.
618 const Elf_Shdr *dot_dynstr_sec; // Dynamic symbol string table.
620 // SymbolTableSections[0] always points to the dynamic string table section
621 // header, or NULL if there is no dynamic string table.
622 Sections_t SymbolTableSections;
623 IndexMap_t SymbolTableSectionsIndexMap;
624 DenseMap<const Elf_Sym*, ELF::Elf64_Word> ExtendedSymbolTable;
626 const Elf_Shdr *dot_dynamic_sec; // .dynamic
627 const Elf_Shdr *dot_gnu_version_sec; // .gnu.version
628 const Elf_Shdr *dot_gnu_version_r_sec; // .gnu.version_r
629 const Elf_Shdr *dot_gnu_version_d_sec; // .gnu.version_d
631 // Pointer to SONAME entry in dynamic string table
632 // This is set the first time getLoadName is called.
633 mutable const char *dt_soname;
636 // Records for each version index the corresponding Verdef or Vernaux entry.
637 // This is filled the first time LoadVersionMap() is called.
638 class VersionMapEntry : public PointerIntPair<const void*, 1> {
640 // If the integer is 0, this is an Elf_Verdef*.
641 // If the integer is 1, this is an Elf_Vernaux*.
642 VersionMapEntry() : PointerIntPair<const void*, 1>(NULL, 0) { }
643 VersionMapEntry(const Elf_Verdef *verdef)
644 : PointerIntPair<const void*, 1>(verdef, 0) { }
645 VersionMapEntry(const Elf_Vernaux *vernaux)
646 : PointerIntPair<const void*, 1>(vernaux, 1) { }
647 bool isNull() const { return getPointer() == NULL; }
648 bool isVerdef() const { return !isNull() && getInt() == 0; }
649 bool isVernaux() const { return !isNull() && getInt() == 1; }
650 const Elf_Verdef *getVerdef() const {
651 return isVerdef() ? (const Elf_Verdef*)getPointer() : NULL;
653 const Elf_Vernaux *getVernaux() const {
654 return isVernaux() ? (const Elf_Vernaux*)getPointer() : NULL;
657 mutable SmallVector<VersionMapEntry, 16> VersionMap;
658 void LoadVersionDefs(const Elf_Shdr *sec) const;
659 void LoadVersionNeeds(const Elf_Shdr *ec) const;
660 void LoadVersionMap() const;
662 /// @brief Map sections to an array of relocation sections that reference
663 /// them sorted by section index.
664 RelocMap_t SectionRelocMap;
666 /// @brief Get the relocation section that contains \a Rel.
667 const Elf_Shdr *getRelSection(DataRefImpl Rel) const {
668 return getSection(Rel.w.b);
672 bool isRelocationHasAddend(DataRefImpl Rel) const;
674 const T *getEntry(uint16_t Section, uint32_t Entry) const;
676 const T *getEntry(const Elf_Shdr *Section, uint32_t Entry) const;
677 const Elf_Shdr *getSection(DataRefImpl index) const;
678 const Elf_Shdr *getSection(uint32_t index) const;
679 const Elf_Rel *getRel(DataRefImpl Rel) const;
680 const Elf_Rela *getRela(DataRefImpl Rela) const;
681 const char *getString(uint32_t section, uint32_t offset) const;
682 const char *getString(const Elf_Shdr *section, uint32_t offset) const;
683 error_code getSymbolVersion(const Elf_Shdr *section,
686 bool &IsDefault) const;
687 void VerifyStrTab(const Elf_Shdr *sh) const;
690 const Elf_Sym *getSymbol(DataRefImpl Symb) const; // FIXME: Should be private?
691 void validateSymbol(DataRefImpl Symb) const;
692 StringRef getRelocationTypeName(uint32_t Type) const;
695 error_code getSymbolName(const Elf_Shdr *section,
697 StringRef &Res) const;
698 error_code getSectionName(const Elf_Shdr *section,
699 StringRef &Res) const;
700 const Elf_Dyn *getDyn(DataRefImpl DynData) const;
701 error_code getSymbolVersion(SymbolRef Symb, StringRef &Version,
702 bool &IsDefault) const;
703 uint64_t getSymbolIndex(const Elf_Sym *sym) const;
705 virtual error_code getSymbolNext(DataRefImpl Symb, SymbolRef &Res) const;
706 virtual error_code getSymbolName(DataRefImpl Symb, StringRef &Res) const;
707 virtual error_code getSymbolFileOffset(DataRefImpl Symb, uint64_t &Res) const;
708 virtual error_code getSymbolAddress(DataRefImpl Symb, uint64_t &Res) const;
709 virtual error_code getSymbolSize(DataRefImpl Symb, uint64_t &Res) const;
710 virtual error_code getSymbolNMTypeChar(DataRefImpl Symb, char &Res) const;
711 virtual error_code getSymbolFlags(DataRefImpl Symb, uint32_t &Res) const;
712 virtual error_code getSymbolType(DataRefImpl Symb, SymbolRef::Type &Res) const;
713 virtual error_code getSymbolSection(DataRefImpl Symb,
714 section_iterator &Res) const;
715 virtual error_code getSymbolValue(DataRefImpl Symb, uint64_t &Val) const;
717 virtual error_code getLibraryNext(DataRefImpl Data, LibraryRef &Result) const;
718 virtual error_code getLibraryPath(DataRefImpl Data, StringRef &Res) const;
720 virtual error_code getSectionNext(DataRefImpl Sec, SectionRef &Res) const;
721 virtual error_code getSectionName(DataRefImpl Sec, StringRef &Res) const;
722 virtual error_code getSectionAddress(DataRefImpl Sec, uint64_t &Res) const;
723 virtual error_code getSectionSize(DataRefImpl Sec, uint64_t &Res) const;
724 virtual error_code getSectionContents(DataRefImpl Sec, StringRef &Res) const;
725 virtual error_code getSectionAlignment(DataRefImpl Sec, uint64_t &Res) const;
726 virtual error_code isSectionText(DataRefImpl Sec, bool &Res) const;
727 virtual error_code isSectionData(DataRefImpl Sec, bool &Res) const;
728 virtual error_code isSectionBSS(DataRefImpl Sec, bool &Res) const;
729 virtual error_code isSectionRequiredForExecution(DataRefImpl Sec,
731 virtual error_code isSectionVirtual(DataRefImpl Sec, bool &Res) const;
732 virtual error_code isSectionZeroInit(DataRefImpl Sec, bool &Res) const;
733 virtual error_code isSectionReadOnlyData(DataRefImpl Sec, bool &Res) const;
734 virtual error_code sectionContainsSymbol(DataRefImpl Sec, DataRefImpl Symb,
736 virtual relocation_iterator getSectionRelBegin(DataRefImpl Sec) const;
737 virtual relocation_iterator getSectionRelEnd(DataRefImpl Sec) const;
739 virtual error_code getRelocationNext(DataRefImpl Rel,
740 RelocationRef &Res) const;
741 virtual error_code getRelocationAddress(DataRefImpl Rel,
742 uint64_t &Res) const;
743 virtual error_code getRelocationOffset(DataRefImpl Rel,
744 uint64_t &Res) const;
745 virtual error_code getRelocationSymbol(DataRefImpl Rel,
746 SymbolRef &Res) const;
747 virtual error_code getRelocationType(DataRefImpl Rel,
748 uint64_t &Res) const;
749 virtual error_code getRelocationTypeName(DataRefImpl Rel,
750 SmallVectorImpl<char> &Result) const;
751 virtual error_code getRelocationAdditionalInfo(DataRefImpl Rel,
753 virtual error_code getRelocationValueString(DataRefImpl Rel,
754 SmallVectorImpl<char> &Result) const;
757 ELFObjectFile(MemoryBuffer *Object, error_code &ec);
759 bool isMips64EL() const {
760 return Header->e_machine == ELF::EM_MIPS &&
761 Header->getFileClass() == ELF::ELFCLASS64 &&
762 Header->getDataEncoding() == ELF::ELFDATA2LSB;
765 virtual symbol_iterator begin_symbols() const;
766 virtual symbol_iterator end_symbols() const;
768 virtual symbol_iterator begin_dynamic_symbols() const;
769 virtual symbol_iterator end_dynamic_symbols() const;
771 virtual section_iterator begin_sections() const;
772 virtual section_iterator end_sections() const;
774 virtual library_iterator begin_libraries_needed() const;
775 virtual library_iterator end_libraries_needed() const;
777 const Elf_Shdr *getDynamicSymbolTableSectionHeader() const {
778 return SymbolTableSections[0];
781 const Elf_Shdr *getDynamicStringTableSectionHeader() const {
782 return dot_dynstr_sec;
785 Elf_Dyn_iterator begin_dynamic_table() const;
786 /// \param NULLEnd use one past the first DT_NULL entry as the end instead of
787 /// the section size.
788 Elf_Dyn_iterator end_dynamic_table(bool NULLEnd = false) const;
790 Elf_Sym_iterator begin_elf_dynamic_symbols() const {
791 const Elf_Shdr *DynSymtab = SymbolTableSections[0];
793 return Elf_Sym_iterator(DynSymtab->sh_entsize,
794 (const char *)base() + DynSymtab->sh_offset);
795 return Elf_Sym_iterator(0, 0);
798 Elf_Sym_iterator end_elf_dynamic_symbols() const {
799 const Elf_Shdr *DynSymtab = SymbolTableSections[0];
801 return Elf_Sym_iterator(DynSymtab->sh_entsize, (const char *)base() +
802 DynSymtab->sh_offset + DynSymtab->sh_size);
803 return Elf_Sym_iterator(0, 0);
806 Elf_Rela_Iter beginELFRela(const Elf_Shdr *sec) const {
807 return Elf_Rela_Iter(sec->sh_entsize,
808 (const char *)(base() + sec->sh_offset));
811 Elf_Rela_Iter endELFRela(const Elf_Shdr *sec) const {
812 return Elf_Rela_Iter(sec->sh_entsize, (const char *)
813 (base() + sec->sh_offset + sec->sh_size));
816 Elf_Rel_Iter beginELFRel(const Elf_Shdr *sec) const {
817 return Elf_Rel_Iter(sec->sh_entsize,
818 (const char *)(base() + sec->sh_offset));
821 Elf_Rel_Iter endELFRel(const Elf_Shdr *sec) const {
822 return Elf_Rel_Iter(sec->sh_entsize, (const char *)
823 (base() + sec->sh_offset + sec->sh_size));
826 /// \brief Iterate over program header table.
827 typedef ELFEntityIterator<const Elf_Phdr> Elf_Phdr_Iter;
829 Elf_Phdr_Iter begin_program_headers() const {
830 return Elf_Phdr_Iter(Header->e_phentsize,
831 (const char*)base() + Header->e_phoff);
834 Elf_Phdr_Iter end_program_headers() const {
835 return Elf_Phdr_Iter(Header->e_phentsize,
836 (const char*)base() +
838 (Header->e_phnum * Header->e_phentsize));
841 virtual uint8_t getBytesInAddress() const;
842 virtual StringRef getFileFormatName() const;
843 virtual StringRef getObjectType() const { return "ELF"; }
844 virtual unsigned getArch() const;
845 virtual StringRef getLoadName() const;
846 virtual error_code getSectionContents(const Elf_Shdr *sec,
847 StringRef &Res) const;
849 uint64_t getNumSections() const;
850 uint64_t getStringTableIndex() const;
851 ELF::Elf64_Word getSymbolTableIndex(const Elf_Sym *symb) const;
852 const Elf_Ehdr *getElfHeader() const;
853 const Elf_Shdr *getSection(const Elf_Sym *symb) const;
854 const Elf_Shdr *getElfSection(section_iterator &It) const;
855 const Elf_Sym *getElfSymbol(symbol_iterator &It) const;
856 const Elf_Sym *getElfSymbol(uint32_t index) const;
858 // Methods for type inquiry through isa, cast, and dyn_cast
859 bool isDyldType() const { return isDyldELFObject; }
860 static inline bool classof(const Binary *v) {
861 return v->getType() == getELFType(ELFT::TargetEndianness == support::little,
866 // Iterate through the version definitions, and place each Elf_Verdef
867 // in the VersionMap according to its index.
869 void ELFObjectFile<ELFT>::LoadVersionDefs(const Elf_Shdr *sec) const {
870 unsigned vd_size = sec->sh_size; // Size of section in bytes
871 unsigned vd_count = sec->sh_info; // Number of Verdef entries
872 const char *sec_start = (const char*)base() + sec->sh_offset;
873 const char *sec_end = sec_start + vd_size;
874 // The first Verdef entry is at the start of the section.
875 const char *p = sec_start;
876 for (unsigned i = 0; i < vd_count; i++) {
877 if (p + sizeof(Elf_Verdef) > sec_end)
878 report_fatal_error("Section ended unexpectedly while scanning "
879 "version definitions.");
880 const Elf_Verdef *vd = reinterpret_cast<const Elf_Verdef *>(p);
881 if (vd->vd_version != ELF::VER_DEF_CURRENT)
882 report_fatal_error("Unexpected verdef version");
883 size_t index = vd->vd_ndx & ELF::VERSYM_VERSION;
884 if (index >= VersionMap.size())
885 VersionMap.resize(index+1);
886 VersionMap[index] = VersionMapEntry(vd);
891 // Iterate through the versions needed section, and place each Elf_Vernaux
892 // in the VersionMap according to its index.
894 void ELFObjectFile<ELFT>::LoadVersionNeeds(const Elf_Shdr *sec) const {
895 unsigned vn_size = sec->sh_size; // Size of section in bytes
896 unsigned vn_count = sec->sh_info; // Number of Verneed entries
897 const char *sec_start = (const char*)base() + sec->sh_offset;
898 const char *sec_end = sec_start + vn_size;
899 // The first Verneed entry is at the start of the section.
900 const char *p = sec_start;
901 for (unsigned i = 0; i < vn_count; i++) {
902 if (p + sizeof(Elf_Verneed) > sec_end)
903 report_fatal_error("Section ended unexpectedly while scanning "
904 "version needed records.");
905 const Elf_Verneed *vn = reinterpret_cast<const Elf_Verneed *>(p);
906 if (vn->vn_version != ELF::VER_NEED_CURRENT)
907 report_fatal_error("Unexpected verneed version");
908 // Iterate through the Vernaux entries
909 const char *paux = p + vn->vn_aux;
910 for (unsigned j = 0; j < vn->vn_cnt; j++) {
911 if (paux + sizeof(Elf_Vernaux) > sec_end)
912 report_fatal_error("Section ended unexpected while scanning auxiliary "
913 "version needed records.");
914 const Elf_Vernaux *vna = reinterpret_cast<const Elf_Vernaux *>(paux);
915 size_t index = vna->vna_other & ELF::VERSYM_VERSION;
916 if (index >= VersionMap.size())
917 VersionMap.resize(index+1);
918 VersionMap[index] = VersionMapEntry(vna);
919 paux += vna->vna_next;
926 void ELFObjectFile<ELFT>::LoadVersionMap() const {
927 // If there is no dynamic symtab or version table, there is nothing to do.
928 if (SymbolTableSections[0] == NULL || dot_gnu_version_sec == NULL)
931 // Has the VersionMap already been loaded?
932 if (VersionMap.size() > 0)
935 // The first two version indexes are reserved.
936 // Index 0 is LOCAL, index 1 is GLOBAL.
937 VersionMap.push_back(VersionMapEntry());
938 VersionMap.push_back(VersionMapEntry());
940 if (dot_gnu_version_d_sec)
941 LoadVersionDefs(dot_gnu_version_d_sec);
943 if (dot_gnu_version_r_sec)
944 LoadVersionNeeds(dot_gnu_version_r_sec);
948 void ELFObjectFile<ELFT>::validateSymbol(DataRefImpl Symb) const {
950 const Elf_Sym *symb = getSymbol(Symb);
951 const Elf_Shdr *SymbolTableSection = SymbolTableSections[Symb.d.b];
952 // FIXME: We really need to do proper error handling in the case of an invalid
953 // input file. Because we don't use exceptions, I think we'll just pass
954 // an error object around.
956 && SymbolTableSection
957 && symb >= (const Elf_Sym*)(base()
958 + SymbolTableSection->sh_offset)
959 && symb < (const Elf_Sym*)(base()
960 + SymbolTableSection->sh_offset
961 + SymbolTableSection->sh_size)))
962 // FIXME: Proper error handling.
963 report_fatal_error("Symb must point to a valid symbol!");
968 error_code ELFObjectFile<ELFT>::getSymbolNext(DataRefImpl Symb,
969 SymbolRef &Result) const {
970 validateSymbol(Symb);
971 const Elf_Shdr *SymbolTableSection = SymbolTableSections[Symb.d.b];
974 // Check to see if we are at the end of this symbol table.
975 if (Symb.d.a >= SymbolTableSection->getEntityCount()) {
976 // We are at the end. If there are other symbol tables, jump to them.
977 // If the symbol table is .dynsym, we are iterating dynamic symbols,
978 // and there is only one table of these.
981 Symb.d.a = 1; // The 0th symbol in ELF is fake.
983 // Otherwise return the terminator.
984 if (Symb.d.b == 0 || Symb.d.b >= SymbolTableSections.size()) {
985 Symb.d.a = std::numeric_limits<uint32_t>::max();
986 Symb.d.b = std::numeric_limits<uint32_t>::max();
990 Result = SymbolRef(Symb, this);
991 return object_error::success;
995 error_code ELFObjectFile<ELFT>::getSymbolName(DataRefImpl Symb,
996 StringRef &Result) const {
997 validateSymbol(Symb);
998 const Elf_Sym *symb = getSymbol(Symb);
999 return getSymbolName(SymbolTableSections[Symb.d.b], symb, Result);
1002 template<class ELFT>
1003 error_code ELFObjectFile<ELFT>::getSymbolVersion(SymbolRef SymRef,
1005 bool &IsDefault) const {
1006 DataRefImpl Symb = SymRef.getRawDataRefImpl();
1007 validateSymbol(Symb);
1008 const Elf_Sym *symb = getSymbol(Symb);
1009 return getSymbolVersion(SymbolTableSections[Symb.d.b], symb,
1010 Version, IsDefault);
1013 template<class ELFT>
1014 ELF::Elf64_Word ELFObjectFile<ELFT>
1015 ::getSymbolTableIndex(const Elf_Sym *symb) const {
1016 if (symb->st_shndx == ELF::SHN_XINDEX)
1017 return ExtendedSymbolTable.lookup(symb);
1018 return symb->st_shndx;
1021 template<class ELFT>
1022 const typename ELFObjectFile<ELFT>::Elf_Shdr *
1023 ELFObjectFile<ELFT>::getSection(const Elf_Sym *symb) const {
1024 if (symb->st_shndx == ELF::SHN_XINDEX)
1025 return getSection(ExtendedSymbolTable.lookup(symb));
1026 if (symb->st_shndx >= ELF::SHN_LORESERVE)
1028 return getSection(symb->st_shndx);
1031 template<class ELFT>
1032 const typename ELFObjectFile<ELFT>::Elf_Ehdr *
1033 ELFObjectFile<ELFT>::getElfHeader() const {
1037 template<class ELFT>
1038 const typename ELFObjectFile<ELFT>::Elf_Shdr *
1039 ELFObjectFile<ELFT>::getElfSection(section_iterator &It) const {
1040 llvm::object::DataRefImpl ShdrRef = It->getRawDataRefImpl();
1041 return reinterpret_cast<const Elf_Shdr *>(ShdrRef.p);
1044 template<class ELFT>
1045 const typename ELFObjectFile<ELFT>::Elf_Sym *
1046 ELFObjectFile<ELFT>::getElfSymbol(symbol_iterator &It) const {
1047 return getSymbol(It->getRawDataRefImpl());
1050 template<class ELFT>
1051 const typename ELFObjectFile<ELFT>::Elf_Sym *
1052 ELFObjectFile<ELFT>::getElfSymbol(uint32_t index) const {
1053 DataRefImpl SymbolData;
1054 SymbolData.d.a = index;
1056 return getSymbol(SymbolData);
1059 template<class ELFT>
1060 error_code ELFObjectFile<ELFT>::getSymbolFileOffset(DataRefImpl Symb,
1061 uint64_t &Result) const {
1062 validateSymbol(Symb);
1063 const Elf_Sym *symb = getSymbol(Symb);
1064 const Elf_Shdr *Section;
1065 switch (getSymbolTableIndex(symb)) {
1066 case ELF::SHN_COMMON:
1067 // Unintialized symbols have no offset in the object file
1068 case ELF::SHN_UNDEF:
1069 Result = UnknownAddressOrSize;
1070 return object_error::success;
1072 Result = symb->st_value;
1073 return object_error::success;
1074 default: Section = getSection(symb);
1077 switch (symb->getType()) {
1078 case ELF::STT_SECTION:
1079 Result = Section ? Section->sh_offset : UnknownAddressOrSize;
1080 return object_error::success;
1082 case ELF::STT_OBJECT:
1083 case ELF::STT_NOTYPE:
1084 Result = symb->st_value +
1085 (Section ? Section->sh_offset : 0);
1086 return object_error::success;
1088 Result = UnknownAddressOrSize;
1089 return object_error::success;
1093 template<class ELFT>
1094 error_code ELFObjectFile<ELFT>::getSymbolAddress(DataRefImpl Symb,
1095 uint64_t &Result) const {
1096 validateSymbol(Symb);
1097 const Elf_Sym *symb = getSymbol(Symb);
1098 const Elf_Shdr *Section;
1099 switch (getSymbolTableIndex(symb)) {
1100 case ELF::SHN_COMMON:
1101 case ELF::SHN_UNDEF:
1102 Result = UnknownAddressOrSize;
1103 return object_error::success;
1105 Result = symb->st_value;
1106 return object_error::success;
1107 default: Section = getSection(symb);
1110 switch (symb->getType()) {
1111 case ELF::STT_SECTION:
1112 Result = Section ? Section->sh_addr : UnknownAddressOrSize;
1113 return object_error::success;
1115 case ELF::STT_OBJECT:
1116 case ELF::STT_NOTYPE:
1118 switch(Header->e_type) {
1121 IsRelocatable = false;
1124 IsRelocatable = true;
1126 Result = symb->st_value;
1128 // Clear the ARM/Thumb indicator flag.
1129 if (Header->e_machine == ELF::EM_ARM)
1132 if (IsRelocatable && Section != 0)
1133 Result += Section->sh_addr;
1134 return object_error::success;
1136 Result = UnknownAddressOrSize;
1137 return object_error::success;
1141 template<class ELFT>
1142 error_code ELFObjectFile<ELFT>::getSymbolSize(DataRefImpl Symb,
1143 uint64_t &Result) const {
1144 validateSymbol(Symb);
1145 const Elf_Sym *symb = getSymbol(Symb);
1146 if (symb->st_size == 0)
1147 Result = UnknownAddressOrSize;
1148 Result = symb->st_size;
1149 return object_error::success;
1152 template<class ELFT>
1153 error_code ELFObjectFile<ELFT>::getSymbolNMTypeChar(DataRefImpl Symb,
1154 char &Result) const {
1155 validateSymbol(Symb);
1156 const Elf_Sym *symb = getSymbol(Symb);
1157 const Elf_Shdr *Section = getSection(symb);
1162 switch (Section->sh_type) {
1163 case ELF::SHT_PROGBITS:
1164 case ELF::SHT_DYNAMIC:
1165 switch (Section->sh_flags) {
1166 case (ELF::SHF_ALLOC | ELF::SHF_EXECINSTR):
1168 case (ELF::SHF_ALLOC | ELF::SHF_WRITE):
1170 case ELF::SHF_ALLOC:
1171 case (ELF::SHF_ALLOC | ELF::SHF_MERGE):
1172 case (ELF::SHF_ALLOC | ELF::SHF_MERGE | ELF::SHF_STRINGS):
1176 case ELF::SHT_NOBITS: ret = 'b';
1180 switch (getSymbolTableIndex(symb)) {
1181 case ELF::SHN_UNDEF:
1185 case ELF::SHN_ABS: ret = 'a'; break;
1186 case ELF::SHN_COMMON: ret = 'c'; break;
1189 switch (symb->getBinding()) {
1190 case ELF::STB_GLOBAL: ret = ::toupper(ret); break;
1192 if (getSymbolTableIndex(symb) == ELF::SHN_UNDEF)
1195 if (symb->getType() == ELF::STT_OBJECT)
1201 if (ret == '?' && symb->getType() == ELF::STT_SECTION) {
1203 if (error_code ec = getSymbolName(Symb, name))
1205 Result = StringSwitch<char>(name)
1206 .StartsWith(".debug", 'N')
1207 .StartsWith(".note", 'n')
1209 return object_error::success;
1213 return object_error::success;
1216 template<class ELFT>
1217 error_code ELFObjectFile<ELFT>::getSymbolType(DataRefImpl Symb,
1218 SymbolRef::Type &Result) const {
1219 validateSymbol(Symb);
1220 const Elf_Sym *symb = getSymbol(Symb);
1222 switch (symb->getType()) {
1223 case ELF::STT_NOTYPE:
1224 Result = SymbolRef::ST_Unknown;
1226 case ELF::STT_SECTION:
1227 Result = SymbolRef::ST_Debug;
1230 Result = SymbolRef::ST_File;
1233 Result = SymbolRef::ST_Function;
1235 case ELF::STT_OBJECT:
1236 case ELF::STT_COMMON:
1238 Result = SymbolRef::ST_Data;
1241 Result = SymbolRef::ST_Other;
1244 return object_error::success;
1247 template<class ELFT>
1248 error_code ELFObjectFile<ELFT>::getSymbolFlags(DataRefImpl Symb,
1249 uint32_t &Result) const {
1250 validateSymbol(Symb);
1251 const Elf_Sym *symb = getSymbol(Symb);
1253 Result = SymbolRef::SF_None;
1255 if (symb->getBinding() != ELF::STB_LOCAL)
1256 Result |= SymbolRef::SF_Global;
1258 if (symb->getBinding() == ELF::STB_WEAK)
1259 Result |= SymbolRef::SF_Weak;
1261 if (symb->st_shndx == ELF::SHN_ABS)
1262 Result |= SymbolRef::SF_Absolute;
1264 if (symb->getType() == ELF::STT_FILE ||
1265 symb->getType() == ELF::STT_SECTION)
1266 Result |= SymbolRef::SF_FormatSpecific;
1268 if (getSymbolTableIndex(symb) == ELF::SHN_UNDEF)
1269 Result |= SymbolRef::SF_Undefined;
1271 if (symb->getType() == ELF::STT_COMMON ||
1272 getSymbolTableIndex(symb) == ELF::SHN_COMMON)
1273 Result |= SymbolRef::SF_Common;
1275 if (symb->getType() == ELF::STT_TLS)
1276 Result |= SymbolRef::SF_ThreadLocal;
1278 return object_error::success;
1281 template<class ELFT>
1282 error_code ELFObjectFile<ELFT>::getSymbolSection(DataRefImpl Symb,
1283 section_iterator &Res) const {
1284 validateSymbol(Symb);
1285 const Elf_Sym *symb = getSymbol(Symb);
1286 const Elf_Shdr *sec = getSection(symb);
1288 Res = end_sections();
1291 Sec.p = reinterpret_cast<intptr_t>(sec);
1292 Res = section_iterator(SectionRef(Sec, this));
1294 return object_error::success;
1297 template<class ELFT>
1298 error_code ELFObjectFile<ELFT>::getSymbolValue(DataRefImpl Symb,
1299 uint64_t &Val) const {
1300 validateSymbol(Symb);
1301 const Elf_Sym *symb = getSymbol(Symb);
1302 Val = symb->st_value;
1303 return object_error::success;
1306 template<class ELFT>
1307 error_code ELFObjectFile<ELFT>::getSectionNext(DataRefImpl Sec,
1308 SectionRef &Result) const {
1309 const uint8_t *sec = reinterpret_cast<const uint8_t *>(Sec.p);
1310 sec += Header->e_shentsize;
1311 Sec.p = reinterpret_cast<intptr_t>(sec);
1312 Result = SectionRef(Sec, this);
1313 return object_error::success;
1316 template<class ELFT>
1317 error_code ELFObjectFile<ELFT>::getSectionName(DataRefImpl Sec,
1318 StringRef &Result) const {
1319 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1320 Result = StringRef(getString(dot_shstrtab_sec, sec->sh_name));
1321 return object_error::success;
1324 template<class ELFT>
1325 error_code ELFObjectFile<ELFT>::getSectionAddress(DataRefImpl Sec,
1326 uint64_t &Result) const {
1327 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1328 Result = sec->sh_addr;
1329 return object_error::success;
1332 template<class ELFT>
1333 error_code ELFObjectFile<ELFT>::getSectionSize(DataRefImpl Sec,
1334 uint64_t &Result) const {
1335 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1336 Result = sec->sh_size;
1337 return object_error::success;
1340 template<class ELFT>
1341 error_code ELFObjectFile<ELFT>::getSectionContents(DataRefImpl Sec,
1342 StringRef &Result) const {
1343 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1344 const char *start = (const char*)base() + sec->sh_offset;
1345 Result = StringRef(start, sec->sh_size);
1346 return object_error::success;
1349 template<class ELFT>
1350 error_code ELFObjectFile<ELFT>::getSectionContents(const Elf_Shdr *Sec,
1351 StringRef &Result) const {
1352 const char *start = (const char*)base() + Sec->sh_offset;
1353 Result = StringRef(start, Sec->sh_size);
1354 return object_error::success;
1357 template<class ELFT>
1358 error_code ELFObjectFile<ELFT>::getSectionAlignment(DataRefImpl Sec,
1359 uint64_t &Result) const {
1360 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1361 Result = sec->sh_addralign;
1362 return object_error::success;
1365 template<class ELFT>
1366 error_code ELFObjectFile<ELFT>::isSectionText(DataRefImpl Sec,
1367 bool &Result) const {
1368 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1369 if (sec->sh_flags & ELF::SHF_EXECINSTR)
1373 return object_error::success;
1376 template<class ELFT>
1377 error_code ELFObjectFile<ELFT>::isSectionData(DataRefImpl Sec,
1378 bool &Result) const {
1379 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1380 if (sec->sh_flags & (ELF::SHF_ALLOC | ELF::SHF_WRITE)
1381 && sec->sh_type == ELF::SHT_PROGBITS)
1385 return object_error::success;
1388 template<class ELFT>
1389 error_code ELFObjectFile<ELFT>::isSectionBSS(DataRefImpl Sec,
1390 bool &Result) const {
1391 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1392 if (sec->sh_flags & (ELF::SHF_ALLOC | ELF::SHF_WRITE)
1393 && sec->sh_type == ELF::SHT_NOBITS)
1397 return object_error::success;
1400 template<class ELFT>
1401 error_code ELFObjectFile<ELFT>::isSectionRequiredForExecution(
1402 DataRefImpl Sec, bool &Result) const {
1403 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1404 if (sec->sh_flags & ELF::SHF_ALLOC)
1408 return object_error::success;
1411 template<class ELFT>
1412 error_code ELFObjectFile<ELFT>::isSectionVirtual(DataRefImpl Sec,
1413 bool &Result) const {
1414 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1415 if (sec->sh_type == ELF::SHT_NOBITS)
1419 return object_error::success;
1422 template<class ELFT>
1423 error_code ELFObjectFile<ELFT>::isSectionZeroInit(DataRefImpl Sec,
1424 bool &Result) const {
1425 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1426 // For ELF, all zero-init sections are virtual (that is, they occupy no space
1427 // in the object image) and vice versa.
1428 Result = sec->sh_type == ELF::SHT_NOBITS;
1429 return object_error::success;
1432 template<class ELFT>
1433 error_code ELFObjectFile<ELFT>::isSectionReadOnlyData(DataRefImpl Sec,
1434 bool &Result) const {
1435 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1436 if (sec->sh_flags & ELF::SHF_WRITE || sec->sh_flags & ELF::SHF_EXECINSTR)
1440 return object_error::success;
1443 template<class ELFT>
1444 error_code ELFObjectFile<ELFT>::sectionContainsSymbol(DataRefImpl Sec,
1446 bool &Result) const {
1447 validateSymbol(Symb);
1449 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1450 const Elf_Sym *symb = getSymbol(Symb);
1452 unsigned shndx = symb->st_shndx;
1453 bool Reserved = shndx >= ELF::SHN_LORESERVE
1454 && shndx <= ELF::SHN_HIRESERVE;
1456 Result = !Reserved && (sec == getSection(symb->st_shndx));
1457 return object_error::success;
1460 template<class ELFT>
1462 ELFObjectFile<ELFT>::getSectionRelBegin(DataRefImpl Sec) const {
1463 DataRefImpl RelData;
1464 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1465 typename RelocMap_t::const_iterator ittr = SectionRelocMap.find(sec);
1466 if (sec != 0 && ittr != SectionRelocMap.end()) {
1467 RelData.w.a = getSection(ittr->second[0])->sh_info;
1468 RelData.w.b = ittr->second[0];
1471 return relocation_iterator(RelocationRef(RelData, this));
1474 template<class ELFT>
1476 ELFObjectFile<ELFT>::getSectionRelEnd(DataRefImpl Sec) const {
1477 DataRefImpl RelData;
1478 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1479 typename RelocMap_t::const_iterator ittr = SectionRelocMap.find(sec);
1480 if (sec != 0 && ittr != SectionRelocMap.end()) {
1481 // Get the index of the last relocation section for this section.
1482 std::size_t relocsecindex = ittr->second[ittr->second.size() - 1];
1483 const Elf_Shdr *relocsec = getSection(relocsecindex);
1484 RelData.w.a = relocsec->sh_info;
1485 RelData.w.b = relocsecindex;
1486 RelData.w.c = relocsec->sh_size / relocsec->sh_entsize;
1488 return relocation_iterator(RelocationRef(RelData, this));
1492 template<class ELFT>
1493 error_code ELFObjectFile<ELFT>::getRelocationNext(DataRefImpl Rel,
1494 RelocationRef &Result) const {
1496 const Elf_Shdr *relocsec = getSection(Rel.w.b);
1497 if (Rel.w.c >= (relocsec->sh_size / relocsec->sh_entsize)) {
1498 // We have reached the end of the relocations for this section. See if there
1499 // is another relocation section.
1500 typename RelocMap_t::mapped_type relocseclist =
1501 SectionRelocMap.lookup(getSection(Rel.w.a));
1503 // Do a binary search for the current reloc section index (which must be
1504 // present). Then get the next one.
1505 typename RelocMap_t::mapped_type::const_iterator loc =
1506 std::lower_bound(relocseclist.begin(), relocseclist.end(), Rel.w.b);
1509 // If there is no next one, don't do anything. The ++Rel.w.c above sets Rel
1510 // to the end iterator.
1511 if (loc != relocseclist.end()) {
1516 Result = RelocationRef(Rel, this);
1517 return object_error::success;
1520 template<class ELFT>
1521 error_code ELFObjectFile<ELFT>::getRelocationSymbol(DataRefImpl Rel,
1522 SymbolRef &Result) const {
1524 const Elf_Shdr *sec = getSection(Rel.w.b);
1525 switch (sec->sh_type) {
1527 report_fatal_error("Invalid section type in Rel!");
1528 case ELF::SHT_REL : {
1529 symbolIdx = getRel(Rel)->getSymbol(isMips64EL());
1532 case ELF::SHT_RELA : {
1533 symbolIdx = getRela(Rel)->getSymbol(isMips64EL());
1537 DataRefImpl SymbolData;
1538 IndexMap_t::const_iterator it = SymbolTableSectionsIndexMap.find(sec->sh_link);
1539 if (it == SymbolTableSectionsIndexMap.end())
1540 report_fatal_error("Relocation symbol table not found!");
1541 SymbolData.d.a = symbolIdx;
1542 SymbolData.d.b = it->second;
1543 Result = SymbolRef(SymbolData, this);
1544 return object_error::success;
1547 template<class ELFT>
1548 error_code ELFObjectFile<ELFT>::getRelocationAddress(DataRefImpl Rel,
1549 uint64_t &Result) const {
1551 const Elf_Shdr *sec = getSection(Rel.w.b);
1552 switch (sec->sh_type) {
1554 report_fatal_error("Invalid section type in Rel!");
1555 case ELF::SHT_REL : {
1556 offset = getRel(Rel)->r_offset;
1559 case ELF::SHT_RELA : {
1560 offset = getRela(Rel)->r_offset;
1566 return object_error::success;
1569 template<class ELFT>
1570 error_code ELFObjectFile<ELFT>::getRelocationOffset(DataRefImpl Rel,
1571 uint64_t &Result) const {
1573 const Elf_Shdr *sec = getSection(Rel.w.b);
1574 switch (sec->sh_type) {
1576 report_fatal_error("Invalid section type in Rel!");
1577 case ELF::SHT_REL : {
1578 offset = getRel(Rel)->r_offset;
1581 case ELF::SHT_RELA : {
1582 offset = getRela(Rel)->r_offset;
1587 Result = offset - sec->sh_addr;
1588 return object_error::success;
1591 template<class ELFT>
1592 error_code ELFObjectFile<ELFT>::getRelocationType(DataRefImpl Rel,
1593 uint64_t &Result) const {
1594 const Elf_Shdr *sec = getSection(Rel.w.b);
1595 switch (sec->sh_type) {
1597 report_fatal_error("Invalid section type in Rel!");
1598 case ELF::SHT_REL : {
1599 Result = getRel(Rel)->getType(isMips64EL());
1602 case ELF::SHT_RELA : {
1603 Result = getRela(Rel)->getType(isMips64EL());
1607 return object_error::success;
1610 #define LLVM_ELF_SWITCH_RELOC_TYPE_NAME(enum) \
1611 case ELF::enum: Res = #enum; break;
1613 template<class ELFT>
1614 StringRef ELFObjectFile<ELFT>::getRelocationTypeName(uint32_t Type) const {
1615 StringRef Res = "Unknown";
1616 switch (Header->e_machine) {
1617 case ELF::EM_X86_64:
1619 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_NONE);
1620 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_64);
1621 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC32);
1622 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOT32);
1623 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PLT32);
1624 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_COPY);
1625 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GLOB_DAT);
1626 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_JUMP_SLOT);
1627 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_RELATIVE);
1628 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPCREL);
1629 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_32);
1630 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_32S);
1631 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_16);
1632 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC16);
1633 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_8);
1634 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC8);
1635 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_DTPMOD64);
1636 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_DTPOFF64);
1637 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TPOFF64);
1638 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSGD);
1639 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSLD);
1640 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_DTPOFF32);
1641 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTTPOFF);
1642 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TPOFF32);
1643 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC64);
1644 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTOFF64);
1645 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPC32);
1646 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOT64);
1647 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPCREL64);
1648 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPC64);
1649 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPLT64);
1650 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PLTOFF64);
1651 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_SIZE32);
1652 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_SIZE64);
1653 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPC32_TLSDESC);
1654 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSDESC_CALL);
1655 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSDESC);
1656 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_IRELATIVE);
1662 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_NONE);
1663 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_32);
1664 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PC32);
1665 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GOT32);
1666 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PLT32);
1667 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_COPY);
1668 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GLOB_DAT);
1669 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_JUMP_SLOT);
1670 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_RELATIVE);
1671 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GOTOFF);
1672 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GOTPC);
1673 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_32PLT);
1674 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_TPOFF);
1675 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_IE);
1676 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GOTIE);
1677 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LE);
1678 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD);
1679 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM);
1680 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_16);
1681 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PC16);
1682 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_8);
1683 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PC8);
1684 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_32);
1685 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_PUSH);
1686 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_CALL);
1687 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_POP);
1688 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_32);
1689 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_PUSH);
1690 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_CALL);
1691 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_POP);
1692 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDO_32);
1693 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_IE_32);
1694 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LE_32);
1695 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DTPMOD32);
1696 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DTPOFF32);
1697 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_TPOFF32);
1698 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GOTDESC);
1699 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DESC_CALL);
1700 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DESC);
1701 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_IRELATIVE);
1707 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_NONE);
1708 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_16);
1709 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_32);
1710 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_REL32);
1711 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_26);
1712 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_HI16);
1713 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_LO16);
1714 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GPREL16);
1715 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_LITERAL);
1716 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GOT16);
1717 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_PC16);
1718 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_CALL16);
1719 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GPREL32);
1720 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_SHIFT5);
1721 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_SHIFT6);
1722 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_64);
1723 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GOT_DISP);
1724 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GOT_PAGE);
1725 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GOT_OFST);
1726 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GOT_HI16);
1727 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GOT_LO16);
1728 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_SUB);
1729 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_INSERT_A);
1730 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_INSERT_B);
1731 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_DELETE);
1732 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_HIGHER);
1733 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_HIGHEST);
1734 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_CALL_HI16);
1735 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_CALL_LO16);
1736 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_SCN_DISP);
1737 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_REL16);
1738 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_ADD_IMMEDIATE);
1739 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_PJUMP);
1740 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_RELGOT);
1741 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_JALR);
1742 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_DTPMOD32);
1743 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_DTPREL32);
1744 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_DTPMOD64);
1745 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_DTPREL64);
1746 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_GD);
1747 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_LDM);
1748 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_DTPREL_HI16);
1749 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_DTPREL_LO16);
1750 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_GOTTPREL);
1751 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_TPREL32);
1752 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_TPREL64);
1753 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_TPREL_HI16);
1754 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_TPREL_LO16);
1755 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GLOB_DAT);
1756 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_COPY);
1757 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_JUMP_SLOT);
1758 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_NUM);
1762 case ELF::EM_AARCH64:
1764 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_NONE);
1765 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_ABS64);
1766 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_ABS32);
1767 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_ABS16);
1768 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_PREL64);
1769 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_PREL32);
1770 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_PREL16);
1771 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_UABS_G0);
1772 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_UABS_G0_NC);
1773 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_UABS_G1);
1774 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_UABS_G1_NC);
1775 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_UABS_G2);
1776 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_UABS_G2_NC);
1777 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_UABS_G3);
1778 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_SABS_G0);
1779 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_SABS_G1);
1780 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_SABS_G2);
1781 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_LD_PREL_LO19);
1782 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_ADR_PREL_LO21);
1783 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_ADR_PREL_PG_HI21);
1784 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_ADD_ABS_LO12_NC);
1785 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_LDST8_ABS_LO12_NC);
1786 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TSTBR14);
1787 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_CONDBR19);
1788 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_JUMP26);
1789 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_CALL26);
1790 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_LDST16_ABS_LO12_NC);
1791 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_LDST32_ABS_LO12_NC);
1792 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_LDST64_ABS_LO12_NC);
1793 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_LDST128_ABS_LO12_NC);
1794 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_ADR_GOT_PAGE);
1795 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_LD64_GOT_LO12_NC);
1796 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_MOVW_DTPREL_G2);
1797 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_MOVW_DTPREL_G1);
1798 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_MOVW_DTPREL_G1_NC);
1799 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_MOVW_DTPREL_G0);
1800 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_MOVW_DTPREL_G0_NC);
1801 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_ADD_DTPREL_HI12);
1802 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_ADD_DTPREL_LO12);
1803 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_ADD_DTPREL_LO12_NC);
1804 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_LDST8_DTPREL_LO12);
1805 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_LDST8_DTPREL_LO12_NC);
1806 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_LDST16_DTPREL_LO12);
1807 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_LDST16_DTPREL_LO12_NC);
1808 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_LDST32_DTPREL_LO12);
1809 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_LDST32_DTPREL_LO12_NC);
1810 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_LDST64_DTPREL_LO12);
1811 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_LDST64_DTPREL_LO12_NC);
1812 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSIE_MOVW_GOTTPREL_G1);
1813 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC);
1814 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21);
1815 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC);
1816 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSIE_LD_GOTTPREL_PREL19);
1817 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_MOVW_TPREL_G2);
1818 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_MOVW_TPREL_G1);
1819 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_MOVW_TPREL_G1_NC);
1820 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_MOVW_TPREL_G0);
1821 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_MOVW_TPREL_G0_NC);
1822 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_ADD_TPREL_HI12);
1823 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_ADD_TPREL_LO12);
1824 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_ADD_TPREL_LO12_NC);
1825 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_LDST8_TPREL_LO12);
1826 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_LDST8_TPREL_LO12_NC);
1827 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_LDST16_TPREL_LO12);
1828 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_LDST16_TPREL_LO12_NC);
1829 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_LDST32_TPREL_LO12);
1830 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_LDST32_TPREL_LO12_NC);
1831 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_LDST64_TPREL_LO12);
1832 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_LDST64_TPREL_LO12_NC);
1833 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSDESC_ADR_PAGE);
1834 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSDESC_LD64_LO12_NC);
1835 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSDESC_ADD_LO12_NC);
1836 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSDESC_CALL);
1842 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_NONE);
1843 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PC24);
1844 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS32);
1845 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_REL32);
1846 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_PC_G0);
1847 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS16);
1848 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS12);
1849 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_ABS5);
1850 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS8);
1851 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_SBREL32);
1852 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_CALL);
1853 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_PC8);
1854 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_BREL_ADJ);
1855 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_DESC);
1856 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_SWI8);
1857 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_XPC25);
1858 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_XPC22);
1859 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_DTPMOD32);
1860 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_DTPOFF32);
1861 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_TPOFF32);
1862 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_COPY);
1863 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GLOB_DAT);
1864 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_JUMP_SLOT);
1865 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_RELATIVE);
1866 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOTOFF32);
1867 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_BASE_PREL);
1868 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOT_BREL);
1869 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PLT32);
1870 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_CALL);
1871 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_JUMP24);
1872 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP24);
1873 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_BASE_ABS);
1874 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PCREL_7_0);
1875 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PCREL_15_8);
1876 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PCREL_23_15);
1877 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_SBREL_11_0_NC);
1878 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SBREL_19_12_NC);
1879 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SBREL_27_20_CK);
1880 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TARGET1);
1881 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_SBREL31);
1882 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_V4BX);
1883 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TARGET2);
1884 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PREL31);
1885 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVW_ABS_NC);
1886 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVT_ABS);
1887 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVW_PREL_NC);
1888 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVT_PREL);
1889 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVW_ABS_NC);
1890 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVT_ABS);
1891 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVW_PREL_NC);
1892 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVT_PREL);
1893 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP19);
1894 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP6);
1895 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_ALU_PREL_11_0);
1896 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_PC12);
1897 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS32_NOI);
1898 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_REL32_NOI);
1899 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G0_NC);
1900 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G0);
1901 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G1_NC);
1902 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G1);
1903 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G2);
1904 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_PC_G1);
1905 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_PC_G2);
1906 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_PC_G0);
1907 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_PC_G1);
1908 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_PC_G2);
1909 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_PC_G0);
1910 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_PC_G1);
1911 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_PC_G2);
1912 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G0_NC);
1913 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G0);
1914 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G1_NC);
1915 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G1);
1916 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G2);
1917 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_SB_G0);
1918 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_SB_G1);
1919 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_SB_G2);
1920 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_SB_G0);
1921 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_SB_G1);
1922 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_SB_G2);
1923 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_SB_G0);
1924 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_SB_G1);
1925 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_SB_G2);
1926 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVW_BREL_NC);
1927 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVT_BREL);
1928 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVW_BREL);
1929 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVW_BREL_NC);
1930 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVT_BREL);
1931 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVW_BREL);
1932 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_GOTDESC);
1933 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_CALL);
1934 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_DESCSEQ);
1935 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_TLS_CALL);
1936 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PLT32_ABS);
1937 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOT_ABS);
1938 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOT_PREL);
1939 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOT_BREL12);
1940 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOTOFF12);
1941 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOTRELAX);
1942 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GNU_VTENTRY);
1943 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GNU_VTINHERIT);
1944 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP11);
1945 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP8);
1946 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_GD32);
1947 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LDM32);
1948 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LDO32);
1949 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_IE32);
1950 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LE32);
1951 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LDO12);
1952 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LE12);
1953 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_IE12GP);
1954 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_0);
1955 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_1);
1956 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_2);
1957 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_3);
1958 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_4);
1959 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_5);
1960 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_6);
1961 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_7);
1962 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_8);
1963 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_9);
1964 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_10);
1965 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_11);
1966 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_12);
1967 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_13);
1968 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_14);
1969 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_15);
1970 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ME_TOO);
1971 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_TLS_DESCSEQ16);
1972 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_TLS_DESCSEQ32);
1976 case ELF::EM_HEXAGON:
1978 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_NONE);
1979 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B22_PCREL);
1980 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B15_PCREL);
1981 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B7_PCREL);
1982 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_LO16);
1983 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_HI16);
1984 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_32);
1985 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_16);
1986 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_8);
1987 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GPREL16_0);
1988 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GPREL16_1);
1989 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GPREL16_2);
1990 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GPREL16_3);
1991 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_HL16);
1992 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B13_PCREL);
1993 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B9_PCREL);
1994 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B32_PCREL_X);
1995 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_32_6_X);
1996 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B22_PCREL_X);
1997 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B15_PCREL_X);
1998 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B13_PCREL_X);
1999 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B9_PCREL_X);
2000 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B7_PCREL_X);
2001 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_16_X);
2002 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_12_X);
2003 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_11_X);
2004 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_10_X);
2005 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_9_X);
2006 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_8_X);
2007 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_7_X);
2008 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_6_X);
2009 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_32_PCREL);
2010 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_COPY);
2011 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GLOB_DAT);
2012 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_JMP_SLOT);
2013 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_RELATIVE);
2014 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_PLT_B22_PCREL);
2015 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_LO16);
2016 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_HI16);
2017 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_32);
2018 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_LO16);
2019 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_HI16);
2020 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_32);
2021 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_16);
2022 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPMOD_32);
2023 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_LO16);
2024 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_HI16);
2025 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_32);
2026 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_16);
2027 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_PLT_B22_PCREL);
2028 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_LO16);
2029 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_HI16);
2030 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_32);
2031 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_16);
2032 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_LO16);
2033 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_HI16);
2034 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_32);
2035 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_LO16);
2036 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_HI16);
2037 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_32);
2038 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_16);
2039 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_LO16);
2040 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_HI16);
2041 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_32);
2042 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_16);
2043 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_6_PCREL_X);
2044 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_32_6_X);
2045 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_16_X);
2046 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_11_X);
2047 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_32_6_X);
2048 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_16_X);
2049 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_11_X);
2050 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_32_6_X);
2051 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_16_X);
2052 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_11_X);
2053 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_32_6_X);
2054 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_16_X);
2055 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_11_X);
2056 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_32_6_X);
2057 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_16_X);
2058 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_32_6_X);
2059 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_16_X);
2060 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_11_X);
2061 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_32_6_X);
2062 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_16_X);
2063 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_11_X);
2069 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_NONE);
2070 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR32);
2071 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR24);
2072 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR16);
2073 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR16_LO);
2074 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR16_HI);
2075 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR16_HA);
2076 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR14);
2077 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR14_BRTAKEN);
2078 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR14_BRNTAKEN);
2079 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_REL24);
2080 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_REL14);
2081 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_REL14_BRTAKEN);
2082 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_REL14_BRNTAKEN);
2083 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_REL32);
2084 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_TPREL16_LO);
2085 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_TPREL16_HA);
2091 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_NONE);
2092 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR32);
2093 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR16_LO);
2094 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR16_HI);
2095 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR14);
2096 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_REL24);
2097 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_REL32);
2098 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR64);
2099 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR16_HIGHER);
2100 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR16_HIGHEST);
2101 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_REL64);
2102 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TOC16);
2103 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TOC16_LO);
2104 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TOC16_HA);
2105 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TOC);
2106 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR16_DS);
2107 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR16_LO_DS);
2108 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TOC16_DS);
2109 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TOC16_LO_DS);
2110 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TLS);
2111 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TPREL16_LO);
2112 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TPREL16_HA);
2113 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_DTPREL16_LO);
2114 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_DTPREL16_HA);
2115 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_GOT_TLSGD16_LO);
2116 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_GOT_TLSGD16_HA);
2117 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_GOT_TLSLD16_LO);
2118 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_GOT_TLSLD16_HA);
2119 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_GOT_TPREL16_LO_DS);
2120 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_GOT_TPREL16_HA);
2121 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TLSGD);
2122 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TLSLD);
2131 #undef LLVM_ELF_SWITCH_RELOC_TYPE_NAME
2133 template<class ELFT>
2134 error_code ELFObjectFile<ELFT>::getRelocationTypeName(
2135 DataRefImpl Rel, SmallVectorImpl<char> &Result) const {
2136 const Elf_Shdr *sec = getSection(Rel.w.b);
2138 switch (sec->sh_type) {
2140 return object_error::parse_failed;
2141 case ELF::SHT_REL : {
2142 type = getRel(Rel)->getType(isMips64EL());
2145 case ELF::SHT_RELA : {
2146 type = getRela(Rel)->getType(isMips64EL());
2151 if (!isMips64EL()) {
2152 StringRef Name = getRelocationTypeName(type);
2153 Result.append(Name.begin(), Name.end());
2155 uint8_t Type1 = (type >> 0) & 0xFF;
2156 uint8_t Type2 = (type >> 8) & 0xFF;
2157 uint8_t Type3 = (type >> 16) & 0xFF;
2159 // Concat all three relocation type names.
2160 StringRef Name = getRelocationTypeName(Type1);
2161 Result.append(Name.begin(), Name.end());
2163 Name = getRelocationTypeName(Type2);
2164 Result.append(1, '/');
2165 Result.append(Name.begin(), Name.end());
2167 Name = getRelocationTypeName(Type3);
2168 Result.append(1, '/');
2169 Result.append(Name.begin(), Name.end());
2172 return object_error::success;
2175 template<class ELFT>
2176 error_code ELFObjectFile<ELFT>::getRelocationAdditionalInfo(
2177 DataRefImpl Rel, int64_t &Result) const {
2178 const Elf_Shdr *sec = getSection(Rel.w.b);
2179 switch (sec->sh_type) {
2181 report_fatal_error("Invalid section type in Rel!");
2182 case ELF::SHT_REL : {
2184 return object_error::success;
2186 case ELF::SHT_RELA : {
2187 Result = getRela(Rel)->r_addend;
2188 return object_error::success;
2193 template<class ELFT>
2194 error_code ELFObjectFile<ELFT>::getRelocationValueString(
2195 DataRefImpl Rel, SmallVectorImpl<char> &Result) const {
2196 const Elf_Shdr *sec = getSection(Rel.w.b);
2200 uint16_t symbol_index = 0;
2201 switch (sec->sh_type) {
2203 return object_error::parse_failed;
2204 case ELF::SHT_REL: {
2205 type = getRel(Rel)->getType(isMips64EL());
2206 symbol_index = getRel(Rel)->getSymbol(isMips64EL());
2207 // TODO: Read implicit addend from section data.
2210 case ELF::SHT_RELA: {
2211 type = getRela(Rel)->getType(isMips64EL());
2212 symbol_index = getRela(Rel)->getSymbol(isMips64EL());
2213 addend = getRela(Rel)->r_addend;
2217 const Elf_Sym *symb = getEntry<Elf_Sym>(sec->sh_link, symbol_index);
2219 if (error_code ec = getSymbolName(getSection(sec->sh_link), symb, symname))
2221 switch (Header->e_machine) {
2222 case ELF::EM_X86_64:
2224 case ELF::R_X86_64_PC8:
2225 case ELF::R_X86_64_PC16:
2226 case ELF::R_X86_64_PC32: {
2228 raw_string_ostream fmt(fmtbuf);
2229 fmt << symname << (addend < 0 ? "" : "+") << addend << "-P";
2231 Result.append(fmtbuf.begin(), fmtbuf.end());
2234 case ELF::R_X86_64_8:
2235 case ELF::R_X86_64_16:
2236 case ELF::R_X86_64_32:
2237 case ELF::R_X86_64_32S:
2238 case ELF::R_X86_64_64: {
2240 raw_string_ostream fmt(fmtbuf);
2241 fmt << symname << (addend < 0 ? "" : "+") << addend;
2243 Result.append(fmtbuf.begin(), fmtbuf.end());
2250 case ELF::EM_AARCH64:
2252 case ELF::EM_HEXAGON:
2259 Result.append(res.begin(), res.end());
2260 return object_error::success;
2263 // Verify that the last byte in the string table in a null.
2264 template<class ELFT>
2265 void ELFObjectFile<ELFT>::VerifyStrTab(const Elf_Shdr *sh) const {
2266 const char *strtab = (const char*)base() + sh->sh_offset;
2267 if (strtab[sh->sh_size - 1] != 0)
2268 // FIXME: Proper error handling.
2269 report_fatal_error("String table must end with a null terminator!");
2272 template<class ELFT>
2273 ELFObjectFile<ELFT>::ELFObjectFile(MemoryBuffer *Object, error_code &ec)
2274 : ObjectFile(getELFType(
2275 static_cast<endianness>(ELFT::TargetEndianness) == support::little,
2278 , isDyldELFObject(false)
2279 , SectionHeaderTable(0)
2280 , dot_shstrtab_sec(0)
2283 , dot_dynamic_sec(0)
2284 , dot_gnu_version_sec(0)
2285 , dot_gnu_version_r_sec(0)
2286 , dot_gnu_version_d_sec(0)
2290 const uint64_t FileSize = Data->getBufferSize();
2292 if (sizeof(Elf_Ehdr) > FileSize)
2293 // FIXME: Proper error handling.
2294 report_fatal_error("File too short!");
2296 Header = reinterpret_cast<const Elf_Ehdr *>(base());
2298 if (Header->e_shoff == 0)
2301 const uint64_t SectionTableOffset = Header->e_shoff;
2303 if (SectionTableOffset + sizeof(Elf_Shdr) > FileSize)
2304 // FIXME: Proper error handling.
2305 report_fatal_error("Section header table goes past end of file!");
2307 // The getNumSections() call below depends on SectionHeaderTable being set.
2308 SectionHeaderTable =
2309 reinterpret_cast<const Elf_Shdr *>(base() + SectionTableOffset);
2310 const uint64_t SectionTableSize = getNumSections() * Header->e_shentsize;
2312 if (SectionTableOffset + SectionTableSize > FileSize)
2313 // FIXME: Proper error handling.
2314 report_fatal_error("Section table goes past end of file!");
2316 // To find the symbol tables we walk the section table to find SHT_SYMTAB.
2317 const Elf_Shdr* SymbolTableSectionHeaderIndex = 0;
2318 const Elf_Shdr* sh = SectionHeaderTable;
2320 // Reserve SymbolTableSections[0] for .dynsym
2321 SymbolTableSections.push_back(NULL);
2323 for (uint64_t i = 0, e = getNumSections(); i != e; ++i) {
2324 switch (sh->sh_type) {
2325 case ELF::SHT_SYMTAB_SHNDX: {
2326 if (SymbolTableSectionHeaderIndex)
2327 // FIXME: Proper error handling.
2328 report_fatal_error("More than one .symtab_shndx!");
2329 SymbolTableSectionHeaderIndex = sh;
2332 case ELF::SHT_SYMTAB: {
2333 SymbolTableSectionsIndexMap[i] = SymbolTableSections.size();
2334 SymbolTableSections.push_back(sh);
2337 case ELF::SHT_DYNSYM: {
2338 if (SymbolTableSections[0] != NULL)
2339 // FIXME: Proper error handling.
2340 report_fatal_error("More than one .dynsym!");
2341 SymbolTableSectionsIndexMap[i] = 0;
2342 SymbolTableSections[0] = sh;
2346 case ELF::SHT_RELA: {
2347 SectionRelocMap[getSection(sh->sh_info)].push_back(i);
2350 case ELF::SHT_DYNAMIC: {
2351 if (dot_dynamic_sec != NULL)
2352 // FIXME: Proper error handling.
2353 report_fatal_error("More than one .dynamic!");
2354 dot_dynamic_sec = sh;
2357 case ELF::SHT_GNU_versym: {
2358 if (dot_gnu_version_sec != NULL)
2359 // FIXME: Proper error handling.
2360 report_fatal_error("More than one .gnu.version section!");
2361 dot_gnu_version_sec = sh;
2364 case ELF::SHT_GNU_verdef: {
2365 if (dot_gnu_version_d_sec != NULL)
2366 // FIXME: Proper error handling.
2367 report_fatal_error("More than one .gnu.version_d section!");
2368 dot_gnu_version_d_sec = sh;
2371 case ELF::SHT_GNU_verneed: {
2372 if (dot_gnu_version_r_sec != NULL)
2373 // FIXME: Proper error handling.
2374 report_fatal_error("More than one .gnu.version_r section!");
2375 dot_gnu_version_r_sec = sh;
2382 // Sort section relocation lists by index.
2383 for (typename RelocMap_t::iterator i = SectionRelocMap.begin(),
2384 e = SectionRelocMap.end(); i != e; ++i) {
2385 std::sort(i->second.begin(), i->second.end());
2388 // Get string table sections.
2389 dot_shstrtab_sec = getSection(getStringTableIndex());
2390 if (dot_shstrtab_sec) {
2391 // Verify that the last byte in the string table in a null.
2392 VerifyStrTab(dot_shstrtab_sec);
2395 // Merge this into the above loop.
2396 for (const char *i = reinterpret_cast<const char *>(SectionHeaderTable),
2397 *e = i + getNumSections() * Header->e_shentsize;
2398 i != e; i += Header->e_shentsize) {
2399 const Elf_Shdr *sh = reinterpret_cast<const Elf_Shdr*>(i);
2400 if (sh->sh_type == ELF::SHT_STRTAB) {
2401 StringRef SectionName(getString(dot_shstrtab_sec, sh->sh_name));
2402 if (SectionName == ".strtab") {
2403 if (dot_strtab_sec != 0)
2404 // FIXME: Proper error handling.
2405 report_fatal_error("Already found section named .strtab!");
2406 dot_strtab_sec = sh;
2407 VerifyStrTab(dot_strtab_sec);
2408 } else if (SectionName == ".dynstr") {
2409 if (dot_dynstr_sec != 0)
2410 // FIXME: Proper error handling.
2411 report_fatal_error("Already found section named .dynstr!");
2412 dot_dynstr_sec = sh;
2413 VerifyStrTab(dot_dynstr_sec);
2418 // Build symbol name side-mapping if there is one.
2419 if (SymbolTableSectionHeaderIndex) {
2420 const Elf_Word *ShndxTable = reinterpret_cast<const Elf_Word*>(base() +
2421 SymbolTableSectionHeaderIndex->sh_offset);
2423 for (symbol_iterator si = begin_symbols(),
2424 se = end_symbols(); si != se; si.increment(ec)) {
2426 report_fatal_error("Fewer extended symbol table entries than symbols!");
2427 if (*ShndxTable != ELF::SHN_UNDEF)
2428 ExtendedSymbolTable[getSymbol(si->getRawDataRefImpl())] = *ShndxTable;
2434 // Get the symbol table index in the symtab section given a symbol
2435 template<class ELFT>
2436 uint64_t ELFObjectFile<ELFT>::getSymbolIndex(const Elf_Sym *Sym) const {
2437 assert(SymbolTableSections.size() == 1 && "Only one symbol table supported!");
2438 const Elf_Shdr *SymTab = *SymbolTableSections.begin();
2439 uintptr_t SymLoc = uintptr_t(Sym);
2440 uintptr_t SymTabLoc = uintptr_t(base() + SymTab->sh_offset);
2441 assert(SymLoc > SymTabLoc && "Symbol not in symbol table!");
2442 uint64_t SymOffset = SymLoc - SymTabLoc;
2443 assert(SymOffset % SymTab->sh_entsize == 0 &&
2444 "Symbol not multiple of symbol size!");
2445 return SymOffset / SymTab->sh_entsize;
2448 template<class ELFT>
2449 symbol_iterator ELFObjectFile<ELFT>::begin_symbols() const {
2450 DataRefImpl SymbolData;
2451 if (SymbolTableSections.size() <= 1) {
2452 SymbolData.d.a = std::numeric_limits<uint32_t>::max();
2453 SymbolData.d.b = std::numeric_limits<uint32_t>::max();
2455 SymbolData.d.a = 1; // The 0th symbol in ELF is fake.
2456 SymbolData.d.b = 1; // The 0th table is .dynsym
2458 return symbol_iterator(SymbolRef(SymbolData, this));
2461 template<class ELFT>
2462 symbol_iterator ELFObjectFile<ELFT>::end_symbols() const {
2463 DataRefImpl SymbolData;
2464 SymbolData.d.a = std::numeric_limits<uint32_t>::max();
2465 SymbolData.d.b = std::numeric_limits<uint32_t>::max();
2466 return symbol_iterator(SymbolRef(SymbolData, this));
2469 template<class ELFT>
2470 symbol_iterator ELFObjectFile<ELFT>::begin_dynamic_symbols() const {
2471 DataRefImpl SymbolData;
2472 if (SymbolTableSections[0] == NULL) {
2473 SymbolData.d.a = std::numeric_limits<uint32_t>::max();
2474 SymbolData.d.b = std::numeric_limits<uint32_t>::max();
2476 SymbolData.d.a = 1; // The 0th symbol in ELF is fake.
2477 SymbolData.d.b = 0; // The 0th table is .dynsym
2479 return symbol_iterator(SymbolRef(SymbolData, this));
2482 template<class ELFT>
2483 symbol_iterator ELFObjectFile<ELFT>::end_dynamic_symbols() const {
2484 DataRefImpl SymbolData;
2485 SymbolData.d.a = std::numeric_limits<uint32_t>::max();
2486 SymbolData.d.b = std::numeric_limits<uint32_t>::max();
2487 return symbol_iterator(SymbolRef(SymbolData, this));
2490 template<class ELFT>
2491 section_iterator ELFObjectFile<ELFT>::begin_sections() const {
2493 ret.p = reinterpret_cast<intptr_t>(base() + Header->e_shoff);
2494 return section_iterator(SectionRef(ret, this));
2497 template<class ELFT>
2498 section_iterator ELFObjectFile<ELFT>::end_sections() const {
2500 ret.p = reinterpret_cast<intptr_t>(base()
2502 + (Header->e_shentsize*getNumSections()));
2503 return section_iterator(SectionRef(ret, this));
2506 template<class ELFT>
2507 typename ELFObjectFile<ELFT>::Elf_Dyn_iterator
2508 ELFObjectFile<ELFT>::begin_dynamic_table() const {
2509 if (dot_dynamic_sec)
2510 return Elf_Dyn_iterator(dot_dynamic_sec->sh_entsize,
2511 (const char *)base() + dot_dynamic_sec->sh_offset);
2512 return Elf_Dyn_iterator(0, 0);
2515 template<class ELFT>
2516 typename ELFObjectFile<ELFT>::Elf_Dyn_iterator
2517 ELFObjectFile<ELFT>::end_dynamic_table(bool NULLEnd) const {
2518 if (dot_dynamic_sec) {
2519 Elf_Dyn_iterator Ret(dot_dynamic_sec->sh_entsize,
2520 (const char *)base() + dot_dynamic_sec->sh_offset +
2521 dot_dynamic_sec->sh_size);
2524 Elf_Dyn_iterator Start = begin_dynamic_table();
2525 while (Start != Ret && Start->getTag() != ELF::DT_NULL)
2528 // Include the DT_NULL.
2535 return Elf_Dyn_iterator(0, 0);
2538 template<class ELFT>
2539 StringRef ELFObjectFile<ELFT>::getLoadName() const {
2541 // Find the DT_SONAME entry
2542 Elf_Dyn_iterator it = begin_dynamic_table();
2543 Elf_Dyn_iterator ie = end_dynamic_table();
2544 while (it != ie && it->getTag() != ELF::DT_SONAME)
2548 if (dot_dynstr_sec == NULL)
2549 report_fatal_error("Dynamic string table is missing");
2550 dt_soname = getString(dot_dynstr_sec, it->getVal());
2558 template<class ELFT>
2559 library_iterator ELFObjectFile<ELFT>::begin_libraries_needed() const {
2560 // Find the first DT_NEEDED entry
2561 Elf_Dyn_iterator i = begin_dynamic_table();
2562 Elf_Dyn_iterator e = end_dynamic_table();
2563 while (i != e && i->getTag() != ELF::DT_NEEDED)
2567 DRI.p = reinterpret_cast<uintptr_t>(i.get());
2568 return library_iterator(LibraryRef(DRI, this));
2571 template<class ELFT>
2572 error_code ELFObjectFile<ELFT>::getLibraryNext(DataRefImpl Data,
2573 LibraryRef &Result) const {
2574 // Use the same DataRefImpl format as DynRef.
2575 Elf_Dyn_iterator i = Elf_Dyn_iterator(dot_dynamic_sec->sh_entsize,
2576 reinterpret_cast<const char *>(Data.p));
2577 Elf_Dyn_iterator e = end_dynamic_table();
2579 // Skip the current dynamic table entry and find the next DT_NEEDED entry.
2582 while (i != e && i->getTag() != ELF::DT_NEEDED);
2585 DRI.p = reinterpret_cast<uintptr_t>(i.get());
2586 Result = LibraryRef(DRI, this);
2587 return object_error::success;
2590 template<class ELFT>
2591 error_code ELFObjectFile<ELFT>::getLibraryPath(DataRefImpl Data,
2592 StringRef &Res) const {
2593 Elf_Dyn_iterator i = Elf_Dyn_iterator(dot_dynamic_sec->sh_entsize,
2594 reinterpret_cast<const char *>(Data.p));
2595 if (i == end_dynamic_table())
2596 report_fatal_error("getLibraryPath() called on iterator end");
2598 if (i->getTag() != ELF::DT_NEEDED)
2599 report_fatal_error("Invalid library_iterator");
2601 // This uses .dynstr to lookup the name of the DT_NEEDED entry.
2602 // THis works as long as DT_STRTAB == .dynstr. This is true most of
2603 // the time, but the specification allows exceptions.
2604 // TODO: This should really use DT_STRTAB instead. Doing this requires
2605 // reading the program headers.
2606 if (dot_dynstr_sec == NULL)
2607 report_fatal_error("Dynamic string table is missing");
2608 Res = getString(dot_dynstr_sec, i->getVal());
2609 return object_error::success;
2612 template<class ELFT>
2613 library_iterator ELFObjectFile<ELFT>::end_libraries_needed() const {
2614 Elf_Dyn_iterator e = end_dynamic_table();
2616 DRI.p = reinterpret_cast<uintptr_t>(e.get());
2617 return library_iterator(LibraryRef(DRI, this));
2620 template<class ELFT>
2621 uint8_t ELFObjectFile<ELFT>::getBytesInAddress() const {
2622 return ELFT::Is64Bits ? 8 : 4;
2625 template<class ELFT>
2626 StringRef ELFObjectFile<ELFT>::getFileFormatName() const {
2627 switch(Header->e_ident[ELF::EI_CLASS]) {
2628 case ELF::ELFCLASS32:
2629 switch(Header->e_machine) {
2631 return "ELF32-i386";
2632 case ELF::EM_X86_64:
2633 return "ELF32-x86-64";
2636 case ELF::EM_HEXAGON:
2637 return "ELF32-hexagon";
2639 return "ELF32-mips";
2641 return "ELF32-unknown";
2643 case ELF::ELFCLASS64:
2644 switch(Header->e_machine) {
2646 return "ELF64-i386";
2647 case ELF::EM_X86_64:
2648 return "ELF64-x86-64";
2649 case ELF::EM_AARCH64:
2650 return "ELF64-aarch64";
2652 return "ELF64-ppc64";
2654 return "ELF64-unknown";
2657 // FIXME: Proper error handling.
2658 report_fatal_error("Invalid ELFCLASS!");
2662 template<class ELFT>
2663 unsigned ELFObjectFile<ELFT>::getArch() const {
2664 switch(Header->e_machine) {
2667 case ELF::EM_X86_64:
2668 return Triple::x86_64;
2669 case ELF::EM_AARCH64:
2670 return Triple::aarch64;
2673 case ELF::EM_HEXAGON:
2674 return Triple::hexagon;
2676 return (ELFT::TargetEndianness == support::little) ?
2677 Triple::mipsel : Triple::mips;
2679 return Triple::ppc64;
2681 return Triple::UnknownArch;
2685 template<class ELFT>
2686 uint64_t ELFObjectFile<ELFT>::getNumSections() const {
2687 assert(Header && "Header not initialized!");
2688 if (Header->e_shnum == ELF::SHN_UNDEF) {
2689 assert(SectionHeaderTable && "SectionHeaderTable not initialized!");
2690 return SectionHeaderTable->sh_size;
2692 return Header->e_shnum;
2695 template<class ELFT>
2697 ELFObjectFile<ELFT>::getStringTableIndex() const {
2698 if (Header->e_shnum == ELF::SHN_UNDEF) {
2699 if (Header->e_shstrndx == ELF::SHN_HIRESERVE)
2700 return SectionHeaderTable->sh_link;
2701 if (Header->e_shstrndx >= getNumSections())
2704 return Header->e_shstrndx;
2707 template<class ELFT>
2708 template<typename T>
2710 ELFObjectFile<ELFT>::getEntry(uint16_t Section, uint32_t Entry) const {
2711 return getEntry<T>(getSection(Section), Entry);
2714 template<class ELFT>
2715 template<typename T>
2717 ELFObjectFile<ELFT>::getEntry(const Elf_Shdr * Section, uint32_t Entry) const {
2718 return reinterpret_cast<const T *>(
2720 + Section->sh_offset
2721 + (Entry * Section->sh_entsize));
2724 template<class ELFT>
2725 const typename ELFObjectFile<ELFT>::Elf_Sym *
2726 ELFObjectFile<ELFT>::getSymbol(DataRefImpl Symb) const {
2727 return getEntry<Elf_Sym>(SymbolTableSections[Symb.d.b], Symb.d.a);
2730 template<class ELFT>
2731 const typename ELFObjectFile<ELFT>::Elf_Rel *
2732 ELFObjectFile<ELFT>::getRel(DataRefImpl Rel) const {
2733 return getEntry<Elf_Rel>(Rel.w.b, Rel.w.c);
2736 template<class ELFT>
2737 const typename ELFObjectFile<ELFT>::Elf_Rela *
2738 ELFObjectFile<ELFT>::getRela(DataRefImpl Rela) const {
2739 return getEntry<Elf_Rela>(Rela.w.b, Rela.w.c);
2742 template<class ELFT>
2743 const typename ELFObjectFile<ELFT>::Elf_Shdr *
2744 ELFObjectFile<ELFT>::getSection(DataRefImpl Symb) const {
2745 const Elf_Shdr *sec = getSection(Symb.d.b);
2746 if (sec->sh_type != ELF::SHT_SYMTAB || sec->sh_type != ELF::SHT_DYNSYM)
2747 // FIXME: Proper error handling.
2748 report_fatal_error("Invalid symbol table section!");
2752 template<class ELFT>
2753 const typename ELFObjectFile<ELFT>::Elf_Shdr *
2754 ELFObjectFile<ELFT>::getSection(uint32_t index) const {
2757 if (!SectionHeaderTable || index >= getNumSections())
2758 // FIXME: Proper error handling.
2759 report_fatal_error("Invalid section index!");
2761 return reinterpret_cast<const Elf_Shdr *>(
2762 reinterpret_cast<const char *>(SectionHeaderTable)
2763 + (index * Header->e_shentsize));
2766 template<class ELFT>
2767 const char *ELFObjectFile<ELFT>::getString(uint32_t section,
2768 ELF::Elf32_Word offset) const {
2769 return getString(getSection(section), offset);
2772 template<class ELFT>
2773 const char *ELFObjectFile<ELFT>::getString(const Elf_Shdr *section,
2774 ELF::Elf32_Word offset) const {
2775 assert(section && section->sh_type == ELF::SHT_STRTAB && "Invalid section!");
2776 if (offset >= section->sh_size)
2777 // FIXME: Proper error handling.
2778 report_fatal_error("Symbol name offset outside of string table!");
2779 return (const char *)base() + section->sh_offset + offset;
2782 template<class ELFT>
2783 error_code ELFObjectFile<ELFT>::getSymbolName(const Elf_Shdr *section,
2784 const Elf_Sym *symb,
2785 StringRef &Result) const {
2786 if (symb->st_name == 0) {
2787 const Elf_Shdr *section = getSection(symb);
2791 Result = getString(dot_shstrtab_sec, section->sh_name);
2792 return object_error::success;
2795 if (section == SymbolTableSections[0]) {
2796 // Symbol is in .dynsym, use .dynstr string table
2797 Result = getString(dot_dynstr_sec, symb->st_name);
2799 // Use the default symbol table name section.
2800 Result = getString(dot_strtab_sec, symb->st_name);
2802 return object_error::success;
2805 template<class ELFT>
2806 error_code ELFObjectFile<ELFT>::getSectionName(const Elf_Shdr *section,
2807 StringRef &Result) const {
2808 Result = StringRef(getString(dot_shstrtab_sec, section->sh_name));
2809 return object_error::success;
2812 template<class ELFT>
2813 error_code ELFObjectFile<ELFT>::getSymbolVersion(const Elf_Shdr *section,
2814 const Elf_Sym *symb,
2816 bool &IsDefault) const {
2817 // Handle non-dynamic symbols.
2818 if (section != SymbolTableSections[0]) {
2819 // Non-dynamic symbols can have versions in their names
2820 // A name of the form 'foo@V1' indicates version 'V1', non-default.
2821 // A name of the form 'foo@@V2' indicates version 'V2', default version.
2823 error_code ec = getSymbolName(section, symb, Name);
2824 if (ec != object_error::success)
2826 size_t atpos = Name.find('@');
2827 if (atpos == StringRef::npos) {
2830 return object_error::success;
2833 if (atpos < Name.size() && Name[atpos] == '@') {
2839 Version = Name.substr(atpos);
2840 return object_error::success;
2843 // This is a dynamic symbol. Look in the GNU symbol version table.
2844 if (dot_gnu_version_sec == NULL) {
2845 // No version table.
2848 return object_error::success;
2851 // Determine the position in the symbol table of this entry.
2852 const char *sec_start = (const char*)base() + section->sh_offset;
2853 size_t entry_index = ((const char*)symb - sec_start)/section->sh_entsize;
2855 // Get the corresponding version index entry
2856 const Elf_Versym *vs = getEntry<Elf_Versym>(dot_gnu_version_sec, entry_index);
2857 size_t version_index = vs->vs_index & ELF::VERSYM_VERSION;
2859 // Special markers for unversioned symbols.
2860 if (version_index == ELF::VER_NDX_LOCAL ||
2861 version_index == ELF::VER_NDX_GLOBAL) {
2864 return object_error::success;
2867 // Lookup this symbol in the version table
2869 if (version_index >= VersionMap.size() || VersionMap[version_index].isNull())
2870 report_fatal_error("Symbol has version index without corresponding "
2871 "define or reference entry");
2872 const VersionMapEntry &entry = VersionMap[version_index];
2874 // Get the version name string
2876 if (entry.isVerdef()) {
2877 // The first Verdaux entry holds the name.
2878 name_offset = entry.getVerdef()->getAux()->vda_name;
2880 name_offset = entry.getVernaux()->vna_name;
2882 Version = getString(dot_dynstr_sec, name_offset);
2885 if (entry.isVerdef()) {
2886 IsDefault = !(vs->vs_index & ELF::VERSYM_HIDDEN);
2891 return object_error::success;
2894 /// This is a generic interface for retrieving GNU symbol version
2895 /// information from an ELFObjectFile.
2896 static inline error_code GetELFSymbolVersion(const ObjectFile *Obj,
2897 const SymbolRef &Sym,
2900 // Little-endian 32-bit
2901 if (const ELFObjectFile<ELFType<support::little, 4, false> > *ELFObj =
2902 dyn_cast<ELFObjectFile<ELFType<support::little, 4, false> > >(Obj))
2903 return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
2905 // Big-endian 32-bit
2906 if (const ELFObjectFile<ELFType<support::big, 4, false> > *ELFObj =
2907 dyn_cast<ELFObjectFile<ELFType<support::big, 4, false> > >(Obj))
2908 return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
2910 // Little-endian 64-bit
2911 if (const ELFObjectFile<ELFType<support::little, 8, true> > *ELFObj =
2912 dyn_cast<ELFObjectFile<ELFType<support::little, 8, true> > >(Obj))
2913 return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
2915 // Big-endian 64-bit
2916 if (const ELFObjectFile<ELFType<support::big, 8, true> > *ELFObj =
2917 dyn_cast<ELFObjectFile<ELFType<support::big, 8, true> > >(Obj))
2918 return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
2920 llvm_unreachable("Object passed to GetELFSymbolVersion() is not ELF");
2923 /// This function returns the hash value for a symbol in the .dynsym section
2924 /// Name of the API remains consistent as specified in the libelf
2925 /// REF : http://www.sco.com/developers/gabi/latest/ch5.dynamic.html#hash
2926 static inline unsigned elf_hash(StringRef &symbolName) {
2928 for (unsigned i = 0, j = symbolName.size(); i < j; i++) {
2929 h = (h << 4) + symbolName[i];
2930 g = h & 0xf0000000L;