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<endianness TargetEndianness, std::size_t MaxAlign>
85 struct ELFDataTypeTypedefHelper<ELFType<TargetEndianness, MaxAlign, false> >
86 : ELFDataTypeTypedefHelperCommon<TargetEndianness, MaxAlign> {
87 typedef uint32_t value_type;
88 typedef support::detail::packed_endian_specific_integral
89 <value_type, TargetEndianness,
90 MaximumAlignment<value_type, MaxAlign>::value> Elf_Addr;
91 typedef support::detail::packed_endian_specific_integral
92 <value_type, TargetEndianness,
93 MaximumAlignment<value_type, MaxAlign>::value> Elf_Off;
97 template<endianness TargetEndianness, std::size_t MaxAlign>
98 struct ELFDataTypeTypedefHelper<ELFType<TargetEndianness, MaxAlign, true> >
99 : ELFDataTypeTypedefHelperCommon<TargetEndianness, MaxAlign> {
100 typedef uint64_t value_type;
101 typedef support::detail::packed_endian_specific_integral
102 <value_type, TargetEndianness,
103 MaximumAlignment<value_type, MaxAlign>::value> Elf_Addr;
104 typedef support::detail::packed_endian_specific_integral
105 <value_type, TargetEndianness,
106 MaximumAlignment<value_type, MaxAlign>::value> Elf_Off;
109 // I really don't like doing this, but the alternative is copypasta.
110 #define LLVM_ELF_IMPORT_TYPES(E, M, W) \
111 typedef typename ELFDataTypeTypedefHelper<ELFType<E,M,W> >::Elf_Addr Elf_Addr; \
112 typedef typename ELFDataTypeTypedefHelper<ELFType<E,M,W> >::Elf_Off Elf_Off; \
113 typedef typename ELFDataTypeTypedefHelper<ELFType<E,M,W> >::Elf_Half Elf_Half; \
114 typedef typename ELFDataTypeTypedefHelper<ELFType<E,M,W> >::Elf_Word Elf_Word; \
116 ELFDataTypeTypedefHelper<ELFType<E,M,W> >::Elf_Sword Elf_Sword; \
118 ELFDataTypeTypedefHelper<ELFType<E,M,W> >::Elf_Xword Elf_Xword; \
120 ELFDataTypeTypedefHelper<ELFType<E,M,W> >::Elf_Sxword Elf_Sxword;
122 #define LLVM_ELF_IMPORT_TYPES_ELFT(ELFT) \
123 LLVM_ELF_IMPORT_TYPES(ELFT::TargetEndianness, ELFT::MaxAlignment, \
128 struct Elf_Shdr_Base;
130 template<endianness TargetEndianness, std::size_t MaxAlign>
131 struct Elf_Shdr_Base<ELFType<TargetEndianness, MaxAlign, false> > {
132 LLVM_ELF_IMPORT_TYPES(TargetEndianness, MaxAlign, 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<endianness TargetEndianness, std::size_t MaxAlign>
146 struct Elf_Shdr_Base<ELFType<TargetEndianness, MaxAlign, true> > {
147 LLVM_ELF_IMPORT_TYPES(TargetEndianness, MaxAlign, true)
148 Elf_Word sh_name; // Section name (index into string table)
149 Elf_Word sh_type; // Section type (SHT_*)
150 Elf_Xword sh_flags; // Section flags (SHF_*)
151 Elf_Addr sh_addr; // Address where section is to be loaded
152 Elf_Off sh_offset; // File offset of section data, in bytes
153 Elf_Xword sh_size; // Size of section, in bytes
154 Elf_Word sh_link; // Section type-specific header table index link
155 Elf_Word sh_info; // Section type-specific extra information
156 Elf_Xword sh_addralign;// Section address alignment
157 Elf_Xword sh_entsize; // Size of records contained within the section
161 struct Elf_Shdr_Impl : Elf_Shdr_Base<ELFT> {
162 using Elf_Shdr_Base<ELFT>::sh_entsize;
163 using Elf_Shdr_Base<ELFT>::sh_size;
165 /// @brief Get the number of entities this section contains if it has any.
166 unsigned getEntityCount() const {
169 return sh_size / sh_entsize;
176 template<endianness TargetEndianness, std::size_t MaxAlign>
177 struct Elf_Sym_Base<ELFType<TargetEndianness, MaxAlign, false> > {
178 LLVM_ELF_IMPORT_TYPES(TargetEndianness, MaxAlign, false)
179 Elf_Word st_name; // Symbol name (index into string table)
180 Elf_Addr st_value; // Value or address associated with the symbol
181 Elf_Word st_size; // Size of the symbol
182 unsigned char st_info; // Symbol's type and binding attributes
183 unsigned char st_other; // Must be zero; reserved
184 Elf_Half st_shndx; // Which section (header table index) it's defined in
187 template<endianness TargetEndianness, std::size_t MaxAlign>
188 struct Elf_Sym_Base<ELFType<TargetEndianness, MaxAlign, true> > {
189 LLVM_ELF_IMPORT_TYPES(TargetEndianness, MaxAlign, true)
190 Elf_Word st_name; // Symbol name (index into string table)
191 unsigned char st_info; // Symbol's type and binding attributes
192 unsigned char st_other; // Must be zero; reserved
193 Elf_Half st_shndx; // Which section (header table index) it's defined in
194 Elf_Addr st_value; // Value or address associated with the symbol
195 Elf_Xword st_size; // Size of the symbol
199 struct Elf_Sym_Impl : Elf_Sym_Base<ELFT> {
200 using Elf_Sym_Base<ELFT>::st_info;
202 // These accessors and mutators correspond to the ELF32_ST_BIND,
203 // ELF32_ST_TYPE, and ELF32_ST_INFO macros defined in the ELF specification:
204 unsigned char getBinding() const { return st_info >> 4; }
205 unsigned char getType() const { return st_info & 0x0f; }
206 void setBinding(unsigned char b) { setBindingAndType(b, getType()); }
207 void setType(unsigned char t) { setBindingAndType(getBinding(), t); }
208 void setBindingAndType(unsigned char b, unsigned char t) {
209 st_info = (b << 4) + (t & 0x0f);
213 /// Elf_Versym: This is the structure of entries in the SHT_GNU_versym section
214 /// (.gnu.version). This structure is identical for ELF32 and ELF64.
216 struct Elf_Versym_Impl {
217 LLVM_ELF_IMPORT_TYPES_ELFT(ELFT)
218 Elf_Half vs_index; // Version index with flags (e.g. VERSYM_HIDDEN)
222 struct Elf_Verdaux_Impl;
224 /// Elf_Verdef: This is the structure of entries in the SHT_GNU_verdef section
225 /// (.gnu.version_d). This structure is identical for ELF32 and ELF64.
227 struct Elf_Verdef_Impl {
228 LLVM_ELF_IMPORT_TYPES_ELFT(ELFT)
229 typedef Elf_Verdaux_Impl<ELFT> Elf_Verdaux;
230 Elf_Half vd_version; // Version of this structure (e.g. VER_DEF_CURRENT)
231 Elf_Half vd_flags; // Bitwise flags (VER_DEF_*)
232 Elf_Half vd_ndx; // Version index, used in .gnu.version entries
233 Elf_Half vd_cnt; // Number of Verdaux entries
234 Elf_Word vd_hash; // Hash of name
235 Elf_Word vd_aux; // Offset to the first Verdaux entry (in bytes)
236 Elf_Word vd_next; // Offset to the next Verdef entry (in bytes)
238 /// Get the first Verdaux entry for this Verdef.
239 const Elf_Verdaux *getAux() const {
240 return reinterpret_cast<const Elf_Verdaux*>((const char*)this + vd_aux);
244 /// Elf_Verdaux: This is the structure of auxiliary data in the SHT_GNU_verdef
245 /// section (.gnu.version_d). This structure is identical for ELF32 and ELF64.
247 struct Elf_Verdaux_Impl {
248 LLVM_ELF_IMPORT_TYPES_ELFT(ELFT)
249 Elf_Word vda_name; // Version name (offset in string table)
250 Elf_Word vda_next; // Offset to next Verdaux entry (in bytes)
253 /// Elf_Verneed: This is the structure of entries in the SHT_GNU_verneed
254 /// section (.gnu.version_r). This structure is identical for ELF32 and ELF64.
256 struct Elf_Verneed_Impl {
257 LLVM_ELF_IMPORT_TYPES_ELFT(ELFT)
258 Elf_Half vn_version; // Version of this structure (e.g. VER_NEED_CURRENT)
259 Elf_Half vn_cnt; // Number of associated Vernaux entries
260 Elf_Word vn_file; // Library name (string table offset)
261 Elf_Word vn_aux; // Offset to first Vernaux entry (in bytes)
262 Elf_Word vn_next; // Offset to next Verneed entry (in bytes)
265 /// Elf_Vernaux: This is the structure of auxiliary data in SHT_GNU_verneed
266 /// section (.gnu.version_r). This structure is identical for ELF32 and ELF64.
268 struct Elf_Vernaux_Impl {
269 LLVM_ELF_IMPORT_TYPES_ELFT(ELFT)
270 Elf_Word vna_hash; // Hash of dependency name
271 Elf_Half vna_flags; // Bitwise Flags (VER_FLAG_*)
272 Elf_Half vna_other; // Version index, used in .gnu.version entries
273 Elf_Word vna_name; // Dependency name
274 Elf_Word vna_next; // Offset to next Vernaux entry (in bytes)
277 /// Elf_Dyn_Base: This structure matches the form of entries in the dynamic
278 /// table section (.dynamic) look like.
282 template<endianness TargetEndianness, std::size_t MaxAlign>
283 struct Elf_Dyn_Base<ELFType<TargetEndianness, MaxAlign, false> > {
284 LLVM_ELF_IMPORT_TYPES(TargetEndianness, MaxAlign, false)
292 template<endianness TargetEndianness, std::size_t MaxAlign>
293 struct Elf_Dyn_Base<ELFType<TargetEndianness, MaxAlign, true> > {
294 LLVM_ELF_IMPORT_TYPES(TargetEndianness, MaxAlign, true)
302 /// Elf_Dyn_Impl: This inherits from Elf_Dyn_Base, adding getters and setters.
304 struct Elf_Dyn_Impl : Elf_Dyn_Base<ELFT> {
305 using Elf_Dyn_Base<ELFT>::d_tag;
306 using Elf_Dyn_Base<ELFT>::d_un;
307 int64_t getTag() const { return d_tag; }
308 uint64_t getVal() const { return d_un.d_val; }
309 uint64_t getPtr() const { return d_un.ptr; }
312 // Elf_Rel: Elf Relocation
313 template<class ELFT, bool isRela>
316 template<endianness TargetEndianness, std::size_t MaxAlign>
317 struct Elf_Rel_Base<ELFType<TargetEndianness, MaxAlign, false>, false> {
318 LLVM_ELF_IMPORT_TYPES(TargetEndianness, MaxAlign, false)
319 Elf_Addr r_offset; // Location (file byte offset, or program virtual addr)
320 Elf_Word r_info; // Symbol table index and type of relocation to apply
322 uint32_t getRInfo(bool isMips64EL) const {
326 void setRInfo(uint32_t R) {
331 template<endianness TargetEndianness, std::size_t MaxAlign>
332 struct Elf_Rel_Base<ELFType<TargetEndianness, MaxAlign, true>, false> {
333 LLVM_ELF_IMPORT_TYPES(TargetEndianness, MaxAlign, true)
334 Elf_Addr r_offset; // Location (file byte offset, or program virtual addr)
335 Elf_Xword r_info; // Symbol table index and type of relocation to apply
337 uint64_t getRInfo(bool isMips64EL) const {
341 // Mips64 little endian has a "special" encoding of r_info. Instead of one
342 // 64 bit little endian number, it is a little endian 32 bit number followed
343 // by a 32 bit big endian number.
344 return (t << 32) | ((t >> 8) & 0xff000000) | ((t >> 24) & 0x00ff0000) |
345 ((t >> 40) & 0x0000ff00) | ((t >> 56) & 0x000000ff);
347 void setRInfo(uint64_t R) {
348 // FIXME: Add mips64el support.
353 template<endianness TargetEndianness, std::size_t MaxAlign>
354 struct Elf_Rel_Base<ELFType<TargetEndianness, MaxAlign, false>, true> {
355 LLVM_ELF_IMPORT_TYPES(TargetEndianness, MaxAlign, false)
356 Elf_Addr r_offset; // Location (file byte offset, or program virtual addr)
357 Elf_Word r_info; // Symbol table index and type of relocation to apply
358 Elf_Sword r_addend; // Compute value for relocatable field by adding this
360 uint32_t getRInfo(bool isMips64EL) const {
364 void setRInfo(uint32_t R) {
369 template<endianness TargetEndianness, std::size_t MaxAlign>
370 struct Elf_Rel_Base<ELFType<TargetEndianness, MaxAlign, true>, true> {
371 LLVM_ELF_IMPORT_TYPES(TargetEndianness, MaxAlign, true)
372 Elf_Addr r_offset; // Location (file byte offset, or program virtual addr)
373 Elf_Xword r_info; // Symbol table index and type of relocation to apply
374 Elf_Sxword r_addend; // Compute value for relocatable field by adding this.
376 uint64_t getRInfo(bool isMips64EL) const {
377 // Mips64 little endian has a "special" encoding of r_info. Instead of one
378 // 64 bit little endian number, it is a little endian 32 bit number followed
379 // by a 32 bit big endian number.
383 return (t << 32) | ((t >> 8) & 0xff000000) | ((t >> 24) & 0x00ff0000) |
384 ((t >> 40) & 0x0000ff00) | ((t >> 56) & 0x000000ff);
386 void setRInfo(uint64_t R) {
387 // FIXME: Add mips64el support.
392 template<class ELFT, bool isRela>
395 template<endianness TargetEndianness, std::size_t MaxAlign, bool isRela>
396 struct Elf_Rel_Impl<ELFType<TargetEndianness, MaxAlign, true>, isRela>
397 : Elf_Rel_Base<ELFType<TargetEndianness, MaxAlign, true>, isRela> {
398 LLVM_ELF_IMPORT_TYPES(TargetEndianness, MaxAlign, true)
400 // These accessors and mutators correspond to the ELF64_R_SYM, ELF64_R_TYPE,
401 // and ELF64_R_INFO macros defined in the ELF specification:
402 uint32_t getSymbol(bool isMips64EL) const {
403 return (uint32_t) (this->getRInfo(isMips64EL) >> 32);
405 uint32_t getType(bool isMips64EL) const {
406 return (uint32_t) (this->getRInfo(isMips64EL) & 0xffffffffL);
408 void setSymbol(uint32_t s) { setSymbolAndType(s, getType()); }
409 void setType(uint32_t t) { setSymbolAndType(getSymbol(), t); }
410 void setSymbolAndType(uint32_t s, uint32_t t) {
411 this->setRInfo(((uint64_t)s << 32) + (t&0xffffffffL));
415 template<endianness TargetEndianness, std::size_t MaxAlign, bool isRela>
416 struct Elf_Rel_Impl<ELFType<TargetEndianness, MaxAlign, false>, isRela>
417 : Elf_Rel_Base<ELFType<TargetEndianness, MaxAlign, false>, isRela> {
418 LLVM_ELF_IMPORT_TYPES(TargetEndianness, MaxAlign, false)
420 // These accessors and mutators correspond to the ELF32_R_SYM, ELF32_R_TYPE,
421 // and ELF32_R_INFO macros defined in the ELF specification:
422 uint32_t getSymbol(bool isMips64EL) const {
423 return this->getRInfo(isMips64EL) >> 8;
425 unsigned char getType(bool isMips64EL) const {
426 return (unsigned char) (this->getRInfo(isMips64EL) & 0x0ff);
428 void setSymbol(uint32_t s) { setSymbolAndType(s, getType()); }
429 void setType(unsigned char t) { setSymbolAndType(getSymbol(), t); }
430 void setSymbolAndType(uint32_t s, unsigned char t) {
431 this->setRInfo((s << 8) + t);
436 struct Elf_Ehdr_Impl {
437 LLVM_ELF_IMPORT_TYPES_ELFT(ELFT)
438 unsigned char e_ident[ELF::EI_NIDENT]; // ELF Identification bytes
439 Elf_Half e_type; // Type of file (see ET_*)
440 Elf_Half e_machine; // Required architecture for this file (see EM_*)
441 Elf_Word e_version; // Must be equal to 1
442 Elf_Addr e_entry; // Address to jump to in order to start program
443 Elf_Off e_phoff; // Program header table's file offset, in bytes
444 Elf_Off e_shoff; // Section header table's file offset, in bytes
445 Elf_Word e_flags; // Processor-specific flags
446 Elf_Half e_ehsize; // Size of ELF header, in bytes
447 Elf_Half e_phentsize;// Size of an entry in the program header table
448 Elf_Half e_phnum; // Number of entries in the program header table
449 Elf_Half e_shentsize;// Size of an entry in the section header table
450 Elf_Half e_shnum; // Number of entries in the section header table
451 Elf_Half e_shstrndx; // Section header table index of section name
453 bool checkMagic() const {
454 return (memcmp(e_ident, ELF::ElfMagic, strlen(ELF::ElfMagic))) == 0;
456 unsigned char getFileClass() const { return e_ident[ELF::EI_CLASS]; }
457 unsigned char getDataEncoding() const { return e_ident[ELF::EI_DATA]; }
461 struct Elf_Phdr_Impl;
463 template<endianness TargetEndianness, std::size_t MaxAlign>
464 struct Elf_Phdr_Impl<ELFType<TargetEndianness, MaxAlign, false> > {
465 LLVM_ELF_IMPORT_TYPES(TargetEndianness, MaxAlign, false)
466 Elf_Word p_type; // Type of segment
467 Elf_Off p_offset; // FileOffset where segment is located, in bytes
468 Elf_Addr p_vaddr; // Virtual Address of beginning of segment
469 Elf_Addr p_paddr; // Physical address of beginning of segment (OS-specific)
470 Elf_Word p_filesz; // Num. of bytes in file image of segment (may be zero)
471 Elf_Word p_memsz; // Num. of bytes in mem image of segment (may be zero)
472 Elf_Word p_flags; // Segment flags
473 Elf_Word p_align; // Segment alignment constraint
476 template<endianness TargetEndianness, std::size_t MaxAlign>
477 struct Elf_Phdr_Impl<ELFType<TargetEndianness, MaxAlign, true> > {
478 LLVM_ELF_IMPORT_TYPES(TargetEndianness, MaxAlign, true)
479 Elf_Word p_type; // Type of segment
480 Elf_Word p_flags; // Segment flags
481 Elf_Off p_offset; // FileOffset where segment is located, in bytes
482 Elf_Addr p_vaddr; // Virtual Address of beginning of segment
483 Elf_Addr p_paddr; // Physical address of beginning of segment (OS-specific)
484 Elf_Xword p_filesz; // Num. of bytes in file image of segment (may be zero)
485 Elf_Xword p_memsz; // Num. of bytes in mem image of segment (may be zero)
486 Elf_Xword p_align; // Segment alignment constraint
490 class ELFObjectFile : public ObjectFile {
491 LLVM_ELF_IMPORT_TYPES_ELFT(ELFT)
494 /// \brief Iterate over constant sized entities.
496 class ELFEntityIterator {
498 typedef ptrdiff_t difference_type;
499 typedef EntT value_type;
500 typedef std::random_access_iterator_tag iterator_category;
501 typedef value_type &reference;
502 typedef value_type *pointer;
504 /// \brief Default construct iterator.
505 ELFEntityIterator() : EntitySize(0), Current(0) {}
506 ELFEntityIterator(uint64_t EntSize, const char *Start)
507 : EntitySize(EntSize)
510 reference operator *() {
511 assert(Current && "Attempted to dereference an invalid iterator!");
512 return *reinterpret_cast<pointer>(Current);
515 pointer operator ->() {
516 assert(Current && "Attempted to dereference an invalid iterator!");
517 return reinterpret_cast<pointer>(Current);
520 bool operator ==(const ELFEntityIterator &Other) {
521 return Current == Other.Current;
524 bool operator !=(const ELFEntityIterator &Other) {
525 return !(*this == Other);
528 ELFEntityIterator &operator ++() {
529 assert(Current && "Attempted to increment an invalid iterator!");
530 Current += EntitySize;
534 ELFEntityIterator operator ++(int) {
535 ELFEntityIterator Tmp = *this;
540 ELFEntityIterator &operator =(const ELFEntityIterator &Other) {
541 EntitySize = Other.EntitySize;
542 Current = Other.Current;
546 difference_type operator -(const ELFEntityIterator &Other) const {
547 assert(EntitySize == Other.EntitySize &&
548 "Subtracting iterators of different EntitiySize!");
549 return (Current - Other.Current) / EntitySize;
552 const char *get() const { return Current; }
559 typedef Elf_Ehdr_Impl<ELFT> Elf_Ehdr;
560 typedef Elf_Shdr_Impl<ELFT> Elf_Shdr;
561 typedef Elf_Sym_Impl<ELFT> Elf_Sym;
562 typedef Elf_Dyn_Impl<ELFT> Elf_Dyn;
563 typedef Elf_Phdr_Impl<ELFT> Elf_Phdr;
564 typedef Elf_Rel_Impl<ELFT, false> Elf_Rel;
565 typedef Elf_Rel_Impl<ELFT, true> Elf_Rela;
566 typedef Elf_Verdef_Impl<ELFT> Elf_Verdef;
567 typedef Elf_Verdaux_Impl<ELFT> Elf_Verdaux;
568 typedef Elf_Verneed_Impl<ELFT> Elf_Verneed;
569 typedef Elf_Vernaux_Impl<ELFT> Elf_Vernaux;
570 typedef Elf_Versym_Impl<ELFT> Elf_Versym;
571 typedef ELFEntityIterator<const Elf_Dyn> Elf_Dyn_iterator;
572 typedef ELFEntityIterator<const Elf_Sym> Elf_Sym_iterator;
573 typedef ELFEntityIterator<const Elf_Rela> Elf_Rela_Iter;
574 typedef ELFEntityIterator<const Elf_Rel> Elf_Rel_Iter;
577 // This flag is used for classof, to distinguish ELFObjectFile from
578 // its subclass. If more subclasses will be created, this flag will
579 // have to become an enum.
580 bool isDyldELFObject;
583 const Elf_Ehdr *Header;
584 const Elf_Shdr *SectionHeaderTable;
585 const Elf_Shdr *dot_shstrtab_sec; // Section header string table.
586 const Elf_Shdr *dot_strtab_sec; // Symbol header string table.
587 const Elf_Shdr *dot_dynstr_sec; // Dynamic symbol string table.
589 int SymbolTableIndex;
590 int DynamicSymbolTableIndex;
591 DenseMap<const Elf_Sym*, ELF::Elf64_Word> ExtendedSymbolTable;
593 const Elf_Shdr *dot_dynamic_sec; // .dynamic
594 const Elf_Shdr *dot_gnu_version_sec; // .gnu.version
595 const Elf_Shdr *dot_gnu_version_r_sec; // .gnu.version_r
596 const Elf_Shdr *dot_gnu_version_d_sec; // .gnu.version_d
598 // Pointer to SONAME entry in dynamic string table
599 // This is set the first time getLoadName is called.
600 mutable const char *dt_soname;
603 uint64_t getROffset(DataRefImpl Rel) const;
605 // Records for each version index the corresponding Verdef or Vernaux entry.
606 // This is filled the first time LoadVersionMap() is called.
607 class VersionMapEntry : public PointerIntPair<const void*, 1> {
609 // If the integer is 0, this is an Elf_Verdef*.
610 // If the integer is 1, this is an Elf_Vernaux*.
611 VersionMapEntry() : PointerIntPair<const void*, 1>(NULL, 0) { }
612 VersionMapEntry(const Elf_Verdef *verdef)
613 : PointerIntPair<const void*, 1>(verdef, 0) { }
614 VersionMapEntry(const Elf_Vernaux *vernaux)
615 : PointerIntPair<const void*, 1>(vernaux, 1) { }
616 bool isNull() const { return getPointer() == NULL; }
617 bool isVerdef() const { return !isNull() && getInt() == 0; }
618 bool isVernaux() const { return !isNull() && getInt() == 1; }
619 const Elf_Verdef *getVerdef() const {
620 return isVerdef() ? (const Elf_Verdef*)getPointer() : NULL;
622 const Elf_Vernaux *getVernaux() const {
623 return isVernaux() ? (const Elf_Vernaux*)getPointer() : NULL;
626 mutable SmallVector<VersionMapEntry, 16> VersionMap;
627 void LoadVersionDefs(const Elf_Shdr *sec) const;
628 void LoadVersionNeeds(const Elf_Shdr *ec) const;
629 void LoadVersionMap() const;
631 /// @brief Get the relocation section that contains \a Rel.
632 const Elf_Shdr *getRelSection(DataRefImpl Rel) const {
633 return getSection(Rel.d.a);
637 bool isRelocationHasAddend(DataRefImpl Rel) const;
639 const T *getEntry(uint32_t Section, uint32_t Entry) const;
641 const T *getEntry(const Elf_Shdr *Section, uint32_t Entry) const;
642 const Elf_Shdr *getSection(DataRefImpl index) const;
643 const Elf_Shdr *getSection(uint32_t index) const;
644 const Elf_Rel *getRel(DataRefImpl Rel) const;
645 const Elf_Rela *getRela(DataRefImpl Rela) const;
646 const char *getString(uint32_t section, uint32_t offset) const;
647 const char *getString(const Elf_Shdr *section, uint32_t offset) const;
648 error_code getSymbolVersion(const Elf_Shdr *section,
651 bool &IsDefault) const;
652 void VerifyStrTab(const Elf_Shdr *sh) const;
655 const Elf_Sym *getSymbol(DataRefImpl Symb) const; // FIXME: Should be private?
656 void validateSymbol(DataRefImpl Symb) const;
657 StringRef getRelocationTypeName(uint32_t Type) const;
660 error_code getSymbolName(const Elf_Shdr *section,
662 StringRef &Res) const;
663 error_code getSectionName(const Elf_Shdr *section,
664 StringRef &Res) const;
665 const Elf_Dyn *getDyn(DataRefImpl DynData) const;
666 error_code getSymbolVersion(SymbolRef Symb, StringRef &Version,
667 bool &IsDefault) const;
668 uint64_t getSymbolIndex(const Elf_Sym *sym) const;
669 error_code getRelocationAddend(DataRefImpl Rel, int64_t &Res) const;
671 virtual error_code getSymbolNext(DataRefImpl Symb, SymbolRef &Res) const;
672 virtual error_code getSymbolName(DataRefImpl Symb, StringRef &Res) const;
673 virtual error_code getSymbolFileOffset(DataRefImpl Symb, uint64_t &Res) const;
674 virtual error_code getSymbolAddress(DataRefImpl Symb, uint64_t &Res) const;
675 virtual error_code getSymbolAlignment(DataRefImpl Symb, uint32_t &Res) const;
676 virtual error_code getSymbolSize(DataRefImpl Symb, uint64_t &Res) const;
677 virtual error_code getSymbolNMTypeChar(DataRefImpl Symb, char &Res) const;
678 virtual error_code getSymbolFlags(DataRefImpl Symb, uint32_t &Res) const;
679 virtual error_code getSymbolType(DataRefImpl Symb,
680 SymbolRef::Type &Res) const;
681 virtual error_code getSymbolSection(DataRefImpl Symb,
682 section_iterator &Res) const;
683 virtual error_code getSymbolValue(DataRefImpl Symb, uint64_t &Val) const;
685 virtual error_code getLibraryNext(DataRefImpl Data, LibraryRef &Result) const;
686 virtual error_code getLibraryPath(DataRefImpl Data, StringRef &Res) const;
688 virtual error_code getSectionNext(DataRefImpl Sec, SectionRef &Res) const;
689 virtual error_code getSectionName(DataRefImpl Sec, StringRef &Res) const;
690 virtual error_code getSectionAddress(DataRefImpl Sec, uint64_t &Res) const;
691 virtual error_code getSectionSize(DataRefImpl Sec, uint64_t &Res) const;
692 virtual error_code getSectionContents(DataRefImpl Sec, StringRef &Res) const;
693 virtual error_code getSectionAlignment(DataRefImpl Sec, uint64_t &Res) const;
694 virtual error_code isSectionText(DataRefImpl Sec, bool &Res) const;
695 virtual error_code isSectionData(DataRefImpl Sec, bool &Res) const;
696 virtual error_code isSectionBSS(DataRefImpl Sec, bool &Res) const;
697 virtual error_code isSectionRequiredForExecution(DataRefImpl Sec,
699 virtual error_code isSectionVirtual(DataRefImpl Sec, bool &Res) const;
700 virtual error_code isSectionZeroInit(DataRefImpl Sec, bool &Res) const;
701 virtual error_code isSectionReadOnlyData(DataRefImpl Sec, bool &Res) const;
702 virtual error_code sectionContainsSymbol(DataRefImpl Sec, DataRefImpl Symb,
704 virtual relocation_iterator getSectionRelBegin(DataRefImpl Sec) const;
705 virtual relocation_iterator getSectionRelEnd(DataRefImpl Sec) const;
706 virtual section_iterator getRelocatedSection(DataRefImpl Sec) const;
708 virtual error_code getRelocationNext(DataRefImpl Rel,
709 RelocationRef &Res) const;
710 virtual error_code getRelocationAddress(DataRefImpl Rel,
711 uint64_t &Res) const;
712 virtual error_code getRelocationOffset(DataRefImpl Rel,
713 uint64_t &Res) const;
714 virtual symbol_iterator getRelocationSymbol(DataRefImpl Rel) const;
715 virtual error_code getRelocationType(DataRefImpl Rel,
716 uint64_t &Res) const;
717 virtual error_code getRelocationTypeName(DataRefImpl Rel,
718 SmallVectorImpl<char> &Result) const;
719 virtual error_code getRelocationValueString(DataRefImpl Rel,
720 SmallVectorImpl<char> &Result) const;
723 ELFObjectFile(MemoryBuffer *Object, error_code &ec);
725 bool isMips64EL() const {
726 return Header->e_machine == ELF::EM_MIPS &&
727 Header->getFileClass() == ELF::ELFCLASS64 &&
728 Header->getDataEncoding() == ELF::ELFDATA2LSB;
731 virtual symbol_iterator begin_symbols() const;
732 virtual symbol_iterator end_symbols() const;
734 virtual symbol_iterator begin_dynamic_symbols() const;
735 virtual symbol_iterator end_dynamic_symbols() const;
737 virtual section_iterator begin_sections() const;
738 virtual section_iterator end_sections() const;
740 virtual library_iterator begin_libraries_needed() const;
741 virtual library_iterator end_libraries_needed() const;
743 const Elf_Shdr *getDynamicSymbolTableSectionHeader() const {
744 return getSection(DynamicSymbolTableIndex);
747 const Elf_Shdr *getDynamicStringTableSectionHeader() const {
748 return dot_dynstr_sec;
751 Elf_Dyn_iterator begin_dynamic_table() const;
752 /// \param NULLEnd use one past the first DT_NULL entry as the end instead of
753 /// the section size.
754 Elf_Dyn_iterator end_dynamic_table(bool NULLEnd = false) const;
756 Elf_Sym_iterator begin_elf_dynamic_symbols() const {
757 const Elf_Shdr *DynSymtab = getDynamicSymbolTableSectionHeader();
759 return Elf_Sym_iterator(DynSymtab->sh_entsize,
760 (const char *)base() + DynSymtab->sh_offset);
761 return Elf_Sym_iterator(0, 0);
764 Elf_Sym_iterator end_elf_dynamic_symbols() const {
765 const Elf_Shdr *DynSymtab = getDynamicSymbolTableSectionHeader();
767 return Elf_Sym_iterator(DynSymtab->sh_entsize, (const char *)base() +
768 DynSymtab->sh_offset + DynSymtab->sh_size);
769 return Elf_Sym_iterator(0, 0);
772 Elf_Rela_Iter beginELFRela(const Elf_Shdr *sec) const {
773 return Elf_Rela_Iter(sec->sh_entsize,
774 (const char *)(base() + sec->sh_offset));
777 Elf_Rela_Iter endELFRela(const Elf_Shdr *sec) const {
778 return Elf_Rela_Iter(sec->sh_entsize, (const char *)
779 (base() + sec->sh_offset + sec->sh_size));
782 Elf_Rel_Iter beginELFRel(const Elf_Shdr *sec) const {
783 return Elf_Rel_Iter(sec->sh_entsize,
784 (const char *)(base() + sec->sh_offset));
787 Elf_Rel_Iter endELFRel(const Elf_Shdr *sec) const {
788 return Elf_Rel_Iter(sec->sh_entsize, (const char *)
789 (base() + sec->sh_offset + sec->sh_size));
792 /// \brief Iterate over program header table.
793 typedef ELFEntityIterator<const Elf_Phdr> Elf_Phdr_Iter;
795 Elf_Phdr_Iter begin_program_headers() const {
796 return Elf_Phdr_Iter(Header->e_phentsize,
797 (const char*)base() + Header->e_phoff);
800 Elf_Phdr_Iter end_program_headers() const {
801 return Elf_Phdr_Iter(Header->e_phentsize,
802 (const char*)base() +
804 (Header->e_phnum * Header->e_phentsize));
807 virtual uint8_t getBytesInAddress() const;
808 virtual StringRef getFileFormatName() const;
809 virtual StringRef getObjectType() const { return "ELF"; }
810 virtual unsigned getArch() const;
811 virtual StringRef getLoadName() const;
812 virtual error_code getSectionContents(const Elf_Shdr *sec,
813 StringRef &Res) const;
815 uint64_t getNumSections() const;
816 uint64_t getStringTableIndex() const;
817 ELF::Elf64_Word getSymbolTableIndex(const Elf_Sym *symb) const;
818 const Elf_Ehdr *getElfHeader() const;
819 const Elf_Shdr *getSection(const Elf_Sym *symb) const;
820 const Elf_Shdr *getElfSection(section_iterator &It) const;
821 const Elf_Sym *getElfSymbol(symbol_iterator &It) const;
822 const Elf_Sym *getElfSymbol(uint32_t index) const;
824 // Methods for type inquiry through isa, cast, and dyn_cast
825 bool isDyldType() const { return isDyldELFObject; }
826 static inline bool classof(const Binary *v) {
827 return v->getType() == getELFType(ELFT::TargetEndianness == support::little,
832 // Use an alignment of 2 for the typedefs since that is the worst case for
833 // ELF files in archives.
834 typedef ELFObjectFile<ELFType<support::little, 2, false> > ELF32LEObjectFile;
835 typedef ELFObjectFile<ELFType<support::little, 2, true> > ELF64LEObjectFile;
836 typedef ELFObjectFile<ELFType<support::big, 2, false> > ELF32BEObjectFile;
837 typedef ELFObjectFile<ELFType<support::big, 2, true> > ELF64BEObjectFile;
839 // Iterate through the version definitions, and place each Elf_Verdef
840 // in the VersionMap according to its index.
842 void ELFObjectFile<ELFT>::LoadVersionDefs(const Elf_Shdr *sec) const {
843 unsigned vd_size = sec->sh_size; // Size of section in bytes
844 unsigned vd_count = sec->sh_info; // Number of Verdef entries
845 const char *sec_start = (const char*)base() + sec->sh_offset;
846 const char *sec_end = sec_start + vd_size;
847 // The first Verdef entry is at the start of the section.
848 const char *p = sec_start;
849 for (unsigned i = 0; i < vd_count; i++) {
850 if (p + sizeof(Elf_Verdef) > sec_end)
851 report_fatal_error("Section ended unexpectedly while scanning "
852 "version definitions.");
853 const Elf_Verdef *vd = reinterpret_cast<const Elf_Verdef *>(p);
854 if (vd->vd_version != ELF::VER_DEF_CURRENT)
855 report_fatal_error("Unexpected verdef version");
856 size_t index = vd->vd_ndx & ELF::VERSYM_VERSION;
857 if (index >= VersionMap.size())
858 VersionMap.resize(index+1);
859 VersionMap[index] = VersionMapEntry(vd);
864 // Iterate through the versions needed section, and place each Elf_Vernaux
865 // in the VersionMap according to its index.
867 void ELFObjectFile<ELFT>::LoadVersionNeeds(const Elf_Shdr *sec) const {
868 unsigned vn_size = sec->sh_size; // Size of section in bytes
869 unsigned vn_count = sec->sh_info; // Number of Verneed entries
870 const char *sec_start = (const char*)base() + sec->sh_offset;
871 const char *sec_end = sec_start + vn_size;
872 // The first Verneed entry is at the start of the section.
873 const char *p = sec_start;
874 for (unsigned i = 0; i < vn_count; i++) {
875 if (p + sizeof(Elf_Verneed) > sec_end)
876 report_fatal_error("Section ended unexpectedly while scanning "
877 "version needed records.");
878 const Elf_Verneed *vn = reinterpret_cast<const Elf_Verneed *>(p);
879 if (vn->vn_version != ELF::VER_NEED_CURRENT)
880 report_fatal_error("Unexpected verneed version");
881 // Iterate through the Vernaux entries
882 const char *paux = p + vn->vn_aux;
883 for (unsigned j = 0; j < vn->vn_cnt; j++) {
884 if (paux + sizeof(Elf_Vernaux) > sec_end)
885 report_fatal_error("Section ended unexpected while scanning auxiliary "
886 "version needed records.");
887 const Elf_Vernaux *vna = reinterpret_cast<const Elf_Vernaux *>(paux);
888 size_t index = vna->vna_other & ELF::VERSYM_VERSION;
889 if (index >= VersionMap.size())
890 VersionMap.resize(index+1);
891 VersionMap[index] = VersionMapEntry(vna);
892 paux += vna->vna_next;
899 void ELFObjectFile<ELFT>::LoadVersionMap() const {
900 // If there is no dynamic symtab or version table, there is nothing to do.
901 if (getDynamicStringTableSectionHeader() == NULL ||
902 dot_gnu_version_sec == NULL)
905 // Has the VersionMap already been loaded?
906 if (VersionMap.size() > 0)
909 // The first two version indexes are reserved.
910 // Index 0 is LOCAL, index 1 is GLOBAL.
911 VersionMap.push_back(VersionMapEntry());
912 VersionMap.push_back(VersionMapEntry());
914 if (dot_gnu_version_d_sec)
915 LoadVersionDefs(dot_gnu_version_d_sec);
917 if (dot_gnu_version_r_sec)
918 LoadVersionNeeds(dot_gnu_version_r_sec);
922 void ELFObjectFile<ELFT>::validateSymbol(DataRefImpl Symb) const {
924 const Elf_Sym *symb = getSymbol(Symb);
925 const Elf_Shdr *SymbolTableSection = getSection(Symb.d.b);
926 // FIXME: We really need to do proper error handling in the case of an invalid
927 // input file. Because we don't use exceptions, I think we'll just pass
928 // an error object around.
930 && SymbolTableSection
931 && symb >= (const Elf_Sym*)(base()
932 + SymbolTableSection->sh_offset)
933 && symb < (const Elf_Sym*)(base()
934 + SymbolTableSection->sh_offset
935 + SymbolTableSection->sh_size)))
936 // FIXME: Proper error handling.
937 report_fatal_error("Symb must point to a valid symbol!");
942 error_code ELFObjectFile<ELFT>::getSymbolNext(DataRefImpl Symb,
943 SymbolRef &Result) const {
944 validateSymbol(Symb);
946 Result = SymbolRef(Symb, this);
947 return object_error::success;
951 error_code ELFObjectFile<ELFT>::getSymbolName(DataRefImpl Symb,
952 StringRef &Result) const {
953 validateSymbol(Symb);
954 const Elf_Sym *symb = getSymbol(Symb);
955 return getSymbolName(getSection(Symb.d.b), symb, Result);
959 error_code ELFObjectFile<ELFT>::getSymbolVersion(SymbolRef SymRef,
961 bool &IsDefault) const {
962 DataRefImpl Symb = SymRef.getRawDataRefImpl();
963 validateSymbol(Symb);
964 const Elf_Sym *symb = getSymbol(Symb);
965 return getSymbolVersion(getSection(Symb.d.b), symb, Version, IsDefault);
969 ELF::Elf64_Word ELFObjectFile<ELFT>
970 ::getSymbolTableIndex(const Elf_Sym *symb) const {
971 if (symb->st_shndx == ELF::SHN_XINDEX)
972 return ExtendedSymbolTable.lookup(symb);
973 return symb->st_shndx;
977 const typename ELFObjectFile<ELFT>::Elf_Shdr *
978 ELFObjectFile<ELFT>::getSection(const Elf_Sym *symb) const {
979 if (symb->st_shndx == ELF::SHN_XINDEX)
980 return getSection(ExtendedSymbolTable.lookup(symb));
981 if (symb->st_shndx >= ELF::SHN_LORESERVE)
983 return getSection(symb->st_shndx);
987 const typename ELFObjectFile<ELFT>::Elf_Ehdr *
988 ELFObjectFile<ELFT>::getElfHeader() const {
993 const typename ELFObjectFile<ELFT>::Elf_Shdr *
994 ELFObjectFile<ELFT>::getElfSection(section_iterator &It) const {
995 llvm::object::DataRefImpl ShdrRef = It->getRawDataRefImpl();
996 return reinterpret_cast<const Elf_Shdr *>(ShdrRef.p);
1000 const typename ELFObjectFile<ELFT>::Elf_Sym *
1001 ELFObjectFile<ELFT>::getElfSymbol(symbol_iterator &It) const {
1002 return getSymbol(It->getRawDataRefImpl());
1005 template<class ELFT>
1006 const typename ELFObjectFile<ELFT>::Elf_Sym *
1007 ELFObjectFile<ELFT>::getElfSymbol(uint32_t index) const {
1008 DataRefImpl SymbolData;
1009 SymbolData.d.a = index;
1010 SymbolData.d.b = SymbolTableIndex;
1011 return getSymbol(SymbolData);
1014 template<class ELFT>
1015 error_code ELFObjectFile<ELFT>::getSymbolFileOffset(DataRefImpl Symb,
1016 uint64_t &Result) const {
1017 validateSymbol(Symb);
1018 const Elf_Sym *symb = getSymbol(Symb);
1019 const Elf_Shdr *Section;
1020 switch (getSymbolTableIndex(symb)) {
1021 case ELF::SHN_COMMON:
1022 // Unintialized symbols have no offset in the object file
1023 case ELF::SHN_UNDEF:
1024 Result = UnknownAddressOrSize;
1025 return object_error::success;
1027 Result = symb->st_value;
1028 return object_error::success;
1029 default: Section = getSection(symb);
1032 switch (symb->getType()) {
1033 case ELF::STT_SECTION:
1034 Result = Section ? Section->sh_offset : UnknownAddressOrSize;
1035 return object_error::success;
1037 case ELF::STT_OBJECT:
1038 case ELF::STT_NOTYPE:
1039 Result = symb->st_value +
1040 (Section ? Section->sh_offset : 0);
1041 return object_error::success;
1043 Result = UnknownAddressOrSize;
1044 return object_error::success;
1048 template<class ELFT>
1049 error_code ELFObjectFile<ELFT>::getSymbolAddress(DataRefImpl Symb,
1050 uint64_t &Result) const {
1051 validateSymbol(Symb);
1052 const Elf_Sym *symb = getSymbol(Symb);
1053 const Elf_Shdr *Section;
1054 switch (getSymbolTableIndex(symb)) {
1055 case ELF::SHN_COMMON:
1056 case ELF::SHN_UNDEF:
1057 Result = UnknownAddressOrSize;
1058 return object_error::success;
1060 Result = symb->st_value;
1061 return object_error::success;
1062 default: Section = getSection(symb);
1065 switch (symb->getType()) {
1066 case ELF::STT_SECTION:
1067 Result = Section ? Section->sh_addr : UnknownAddressOrSize;
1068 return object_error::success;
1070 case ELF::STT_OBJECT:
1071 case ELF::STT_NOTYPE:
1073 switch(Header->e_type) {
1076 IsRelocatable = false;
1079 IsRelocatable = true;
1081 Result = symb->st_value;
1083 // Clear the ARM/Thumb indicator flag.
1084 if (Header->e_machine == ELF::EM_ARM)
1087 if (IsRelocatable && Section != 0)
1088 Result += Section->sh_addr;
1089 return object_error::success;
1091 Result = UnknownAddressOrSize;
1092 return object_error::success;
1096 template<class ELFT>
1097 error_code ELFObjectFile<ELFT>::getSymbolAlignment(DataRefImpl Symb,
1098 uint32_t &Res) const {
1100 getSymbolFlags(Symb, flags);
1101 if (flags & SymbolRef::SF_Common) {
1103 getSymbolValue(Symb, Value);
1108 return object_error::success;
1111 template<class ELFT>
1112 error_code ELFObjectFile<ELFT>::getSymbolSize(DataRefImpl Symb,
1113 uint64_t &Result) const {
1114 validateSymbol(Symb);
1115 const Elf_Sym *symb = getSymbol(Symb);
1116 if (symb->st_size == 0)
1117 Result = UnknownAddressOrSize;
1118 Result = symb->st_size;
1119 return object_error::success;
1122 template<class ELFT>
1123 error_code ELFObjectFile<ELFT>::getSymbolNMTypeChar(DataRefImpl Symb,
1124 char &Result) const {
1125 validateSymbol(Symb);
1126 const Elf_Sym *symb = getSymbol(Symb);
1127 const Elf_Shdr *Section = getSection(symb);
1132 switch (Section->sh_type) {
1133 case ELF::SHT_PROGBITS:
1134 case ELF::SHT_DYNAMIC:
1135 switch (Section->sh_flags) {
1136 case (ELF::SHF_ALLOC | ELF::SHF_EXECINSTR):
1138 case (ELF::SHF_ALLOC | ELF::SHF_WRITE):
1140 case ELF::SHF_ALLOC:
1141 case (ELF::SHF_ALLOC | ELF::SHF_MERGE):
1142 case (ELF::SHF_ALLOC | ELF::SHF_MERGE | ELF::SHF_STRINGS):
1146 case ELF::SHT_NOBITS: ret = 'b';
1150 switch (getSymbolTableIndex(symb)) {
1151 case ELF::SHN_UNDEF:
1155 case ELF::SHN_ABS: ret = 'a'; break;
1156 case ELF::SHN_COMMON: ret = 'c'; break;
1159 switch (symb->getBinding()) {
1160 case ELF::STB_GLOBAL: ret = ::toupper(ret); break;
1162 if (getSymbolTableIndex(symb) == ELF::SHN_UNDEF)
1165 if (symb->getType() == ELF::STT_OBJECT)
1171 if (ret == '?' && symb->getType() == ELF::STT_SECTION) {
1173 if (error_code ec = getSymbolName(Symb, name))
1175 Result = StringSwitch<char>(name)
1176 .StartsWith(".debug", 'N')
1177 .StartsWith(".note", 'n')
1179 return object_error::success;
1183 return object_error::success;
1186 template<class ELFT>
1187 error_code ELFObjectFile<ELFT>::getSymbolType(DataRefImpl Symb,
1188 SymbolRef::Type &Result) const {
1189 validateSymbol(Symb);
1190 const Elf_Sym *symb = getSymbol(Symb);
1192 switch (symb->getType()) {
1193 case ELF::STT_NOTYPE:
1194 Result = SymbolRef::ST_Unknown;
1196 case ELF::STT_SECTION:
1197 Result = SymbolRef::ST_Debug;
1200 Result = SymbolRef::ST_File;
1203 Result = SymbolRef::ST_Function;
1205 case ELF::STT_OBJECT:
1206 case ELF::STT_COMMON:
1208 Result = SymbolRef::ST_Data;
1211 Result = SymbolRef::ST_Other;
1214 return object_error::success;
1217 template<class ELFT>
1218 error_code ELFObjectFile<ELFT>::getSymbolFlags(DataRefImpl Symb,
1219 uint32_t &Result) const {
1220 validateSymbol(Symb);
1221 const Elf_Sym *symb = getSymbol(Symb);
1223 Result = SymbolRef::SF_None;
1225 if (symb->getBinding() != ELF::STB_LOCAL)
1226 Result |= SymbolRef::SF_Global;
1228 if (symb->getBinding() == ELF::STB_WEAK)
1229 Result |= SymbolRef::SF_Weak;
1231 if (symb->st_shndx == ELF::SHN_ABS)
1232 Result |= SymbolRef::SF_Absolute;
1234 if (symb->getType() == ELF::STT_FILE ||
1235 symb->getType() == ELF::STT_SECTION)
1236 Result |= SymbolRef::SF_FormatSpecific;
1238 if (getSymbolTableIndex(symb) == ELF::SHN_UNDEF)
1239 Result |= SymbolRef::SF_Undefined;
1241 if (symb->getType() == ELF::STT_COMMON ||
1242 getSymbolTableIndex(symb) == ELF::SHN_COMMON)
1243 Result |= SymbolRef::SF_Common;
1245 if (symb->getType() == ELF::STT_TLS)
1246 Result |= SymbolRef::SF_ThreadLocal;
1248 return object_error::success;
1251 template<class ELFT>
1252 error_code ELFObjectFile<ELFT>::getSymbolSection(DataRefImpl Symb,
1253 section_iterator &Res) const {
1254 validateSymbol(Symb);
1255 const Elf_Sym *symb = getSymbol(Symb);
1256 const Elf_Shdr *sec = getSection(symb);
1258 Res = end_sections();
1261 Sec.p = reinterpret_cast<intptr_t>(sec);
1262 Res = section_iterator(SectionRef(Sec, this));
1264 return object_error::success;
1267 template<class ELFT>
1268 error_code ELFObjectFile<ELFT>::getSymbolValue(DataRefImpl Symb,
1269 uint64_t &Val) const {
1270 validateSymbol(Symb);
1271 const Elf_Sym *symb = getSymbol(Symb);
1272 Val = symb->st_value;
1273 return object_error::success;
1276 template<class ELFT>
1277 error_code ELFObjectFile<ELFT>::getSectionNext(DataRefImpl Sec,
1278 SectionRef &Result) const {
1279 const uint8_t *sec = reinterpret_cast<const uint8_t *>(Sec.p);
1280 sec += Header->e_shentsize;
1281 Sec.p = reinterpret_cast<intptr_t>(sec);
1282 Result = SectionRef(Sec, this);
1283 return object_error::success;
1286 template<class ELFT>
1287 error_code ELFObjectFile<ELFT>::getSectionName(DataRefImpl Sec,
1288 StringRef &Result) const {
1289 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1290 Result = StringRef(getString(dot_shstrtab_sec, sec->sh_name));
1291 return object_error::success;
1294 template<class ELFT>
1295 error_code ELFObjectFile<ELFT>::getSectionAddress(DataRefImpl Sec,
1296 uint64_t &Result) const {
1297 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1298 Result = sec->sh_addr;
1299 return object_error::success;
1302 template<class ELFT>
1303 error_code ELFObjectFile<ELFT>::getSectionSize(DataRefImpl Sec,
1304 uint64_t &Result) const {
1305 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1306 Result = sec->sh_size;
1307 return object_error::success;
1310 template<class ELFT>
1311 error_code ELFObjectFile<ELFT>::getSectionContents(DataRefImpl Sec,
1312 StringRef &Result) const {
1313 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1314 const char *start = (const char*)base() + sec->sh_offset;
1315 Result = StringRef(start, sec->sh_size);
1316 return object_error::success;
1319 template<class ELFT>
1320 error_code ELFObjectFile<ELFT>::getSectionContents(const Elf_Shdr *Sec,
1321 StringRef &Result) const {
1322 const char *start = (const char*)base() + Sec->sh_offset;
1323 Result = StringRef(start, Sec->sh_size);
1324 return object_error::success;
1327 template<class ELFT>
1328 error_code ELFObjectFile<ELFT>::getSectionAlignment(DataRefImpl Sec,
1329 uint64_t &Result) const {
1330 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1331 Result = sec->sh_addralign;
1332 return object_error::success;
1335 template<class ELFT>
1336 error_code ELFObjectFile<ELFT>::isSectionText(DataRefImpl Sec,
1337 bool &Result) const {
1338 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1339 if (sec->sh_flags & ELF::SHF_EXECINSTR)
1343 return object_error::success;
1346 template<class ELFT>
1347 error_code ELFObjectFile<ELFT>::isSectionData(DataRefImpl Sec,
1348 bool &Result) const {
1349 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1350 if (sec->sh_flags & (ELF::SHF_ALLOC | ELF::SHF_WRITE)
1351 && sec->sh_type == ELF::SHT_PROGBITS)
1355 return object_error::success;
1358 template<class ELFT>
1359 error_code ELFObjectFile<ELFT>::isSectionBSS(DataRefImpl Sec,
1360 bool &Result) const {
1361 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1362 if (sec->sh_flags & (ELF::SHF_ALLOC | ELF::SHF_WRITE)
1363 && sec->sh_type == ELF::SHT_NOBITS)
1367 return object_error::success;
1370 template<class ELFT>
1371 error_code ELFObjectFile<ELFT>::isSectionRequiredForExecution(
1372 DataRefImpl Sec, bool &Result) const {
1373 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1374 if (sec->sh_flags & ELF::SHF_ALLOC)
1378 return object_error::success;
1381 template<class ELFT>
1382 error_code ELFObjectFile<ELFT>::isSectionVirtual(DataRefImpl Sec,
1383 bool &Result) const {
1384 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1385 if (sec->sh_type == ELF::SHT_NOBITS)
1389 return object_error::success;
1392 template<class ELFT>
1393 error_code ELFObjectFile<ELFT>::isSectionZeroInit(DataRefImpl Sec,
1394 bool &Result) const {
1395 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1396 // For ELF, all zero-init sections are virtual (that is, they occupy no space
1397 // in the object image) and vice versa.
1398 Result = sec->sh_type == ELF::SHT_NOBITS;
1399 return object_error::success;
1402 template<class ELFT>
1403 error_code ELFObjectFile<ELFT>::isSectionReadOnlyData(DataRefImpl Sec,
1404 bool &Result) const {
1405 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1406 if (sec->sh_flags & ELF::SHF_WRITE || sec->sh_flags & ELF::SHF_EXECINSTR)
1410 return object_error::success;
1413 template<class ELFT>
1414 error_code ELFObjectFile<ELFT>::sectionContainsSymbol(DataRefImpl Sec,
1416 bool &Result) const {
1417 validateSymbol(Symb);
1419 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1420 const Elf_Sym *symb = getSymbol(Symb);
1422 unsigned shndx = symb->st_shndx;
1423 bool Reserved = shndx >= ELF::SHN_LORESERVE
1424 && shndx <= ELF::SHN_HIRESERVE;
1426 Result = !Reserved && (sec == getSection(symb->st_shndx));
1427 return object_error::success;
1430 template<class ELFT>
1432 ELFObjectFile<ELFT>::getSectionRelBegin(DataRefImpl Sec) const {
1433 DataRefImpl RelData;
1434 uintptr_t SHT = reinterpret_cast<uintptr_t>(SectionHeaderTable);
1435 RelData.d.a = (Sec.p - SHT) / Header->e_shentsize;
1437 return relocation_iterator(RelocationRef(RelData, this));
1440 template<class ELFT>
1442 ELFObjectFile<ELFT>::getSectionRelEnd(DataRefImpl Sec) const {
1443 DataRefImpl RelData;
1444 uintptr_t SHT = reinterpret_cast<uintptr_t>(SectionHeaderTable);
1445 const Elf_Shdr *S = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1446 RelData.d.a = (Sec.p - SHT) / Header->e_shentsize;
1447 if (S->sh_type != ELF::SHT_RELA && S->sh_type != ELF::SHT_REL)
1450 RelData.d.b = S->sh_size / S->sh_entsize;
1452 return relocation_iterator(RelocationRef(RelData, this));
1455 template <class ELFT>
1457 ELFObjectFile<ELFT>::getRelocatedSection(DataRefImpl Sec) const {
1458 if (Header->e_type != ELF::ET_REL)
1459 return end_sections();
1461 const Elf_Shdr *S = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1462 unsigned sh_type = S->sh_type;
1463 if (sh_type != ELF::SHT_RELA && sh_type != ELF::SHT_REL)
1464 return end_sections();
1466 assert(S->sh_info != 0);
1467 const Elf_Shdr *R = getSection(S->sh_info);
1469 D.p = reinterpret_cast<uintptr_t>(R);
1470 return section_iterator(SectionRef(D, this));
1474 template<class ELFT>
1475 error_code ELFObjectFile<ELFT>::getRelocationNext(DataRefImpl Rel,
1476 RelocationRef &Result) const {
1478 Result = RelocationRef(Rel, this);
1479 return object_error::success;
1482 template <class ELFT>
1484 ELFObjectFile<ELFT>::getRelocationSymbol(DataRefImpl Rel) const {
1486 const Elf_Shdr *sec = getRelSection(Rel);
1487 switch (sec->sh_type) {
1489 report_fatal_error("Invalid section type in Rel!");
1490 case ELF::SHT_REL : {
1491 symbolIdx = getRel(Rel)->getSymbol(isMips64EL());
1494 case ELF::SHT_RELA : {
1495 symbolIdx = getRela(Rel)->getSymbol(isMips64EL());
1500 return end_symbols();
1502 DataRefImpl SymbolData;
1503 SymbolData.d.a = symbolIdx;
1504 SymbolData.d.b = sec->sh_link;
1505 return symbol_iterator(SymbolRef(SymbolData, this));
1508 template<class ELFT>
1509 error_code ELFObjectFile<ELFT>::getRelocationAddress(DataRefImpl Rel,
1510 uint64_t &Result) const {
1511 assert((Header->e_type == ELF::ET_EXEC || Header->e_type == ELF::ET_DYN) &&
1512 "Only executable and shared objects files have addresses");
1513 Result = getROffset(Rel);
1514 return object_error::success;
1517 template<class ELFT>
1518 error_code ELFObjectFile<ELFT>::getRelocationOffset(DataRefImpl Rel,
1519 uint64_t &Result) const {
1520 assert(Header->e_type == ELF::ET_REL &&
1521 "Only relocatable object files have relocation offsets");
1522 Result = getROffset(Rel);
1523 return object_error::success;
1526 template<class ELFT>
1527 uint64_t ELFObjectFile<ELFT>::getROffset(DataRefImpl Rel) const {
1528 const Elf_Shdr *sec = getRelSection(Rel);
1529 switch (sec->sh_type) {
1531 report_fatal_error("Invalid section type in Rel!");
1533 return getRel(Rel)->r_offset;
1535 return getRela(Rel)->r_offset;
1539 template<class ELFT>
1540 error_code ELFObjectFile<ELFT>::getRelocationType(DataRefImpl Rel,
1541 uint64_t &Result) const {
1542 const Elf_Shdr *sec = getRelSection(Rel);
1543 switch (sec->sh_type) {
1545 report_fatal_error("Invalid section type in Rel!");
1546 case ELF::SHT_REL : {
1547 Result = getRel(Rel)->getType(isMips64EL());
1550 case ELF::SHT_RELA : {
1551 Result = getRela(Rel)->getType(isMips64EL());
1555 return object_error::success;
1558 #define LLVM_ELF_SWITCH_RELOC_TYPE_NAME(enum) \
1559 case ELF::enum: Res = #enum; break;
1561 template<class ELFT>
1562 StringRef ELFObjectFile<ELFT>::getRelocationTypeName(uint32_t Type) const {
1563 StringRef Res = "Unknown";
1564 switch (Header->e_machine) {
1565 case ELF::EM_X86_64:
1567 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_NONE);
1568 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_64);
1569 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC32);
1570 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOT32);
1571 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PLT32);
1572 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_COPY);
1573 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GLOB_DAT);
1574 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_JUMP_SLOT);
1575 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_RELATIVE);
1576 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPCREL);
1577 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_32);
1578 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_32S);
1579 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_16);
1580 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC16);
1581 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_8);
1582 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC8);
1583 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_DTPMOD64);
1584 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_DTPOFF64);
1585 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TPOFF64);
1586 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSGD);
1587 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSLD);
1588 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_DTPOFF32);
1589 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTTPOFF);
1590 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TPOFF32);
1591 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC64);
1592 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTOFF64);
1593 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPC32);
1594 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOT64);
1595 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPCREL64);
1596 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPC64);
1597 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPLT64);
1598 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PLTOFF64);
1599 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_SIZE32);
1600 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_SIZE64);
1601 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPC32_TLSDESC);
1602 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSDESC_CALL);
1603 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSDESC);
1604 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_IRELATIVE);
1610 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_NONE);
1611 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_32);
1612 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PC32);
1613 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GOT32);
1614 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PLT32);
1615 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_COPY);
1616 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GLOB_DAT);
1617 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_JUMP_SLOT);
1618 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_RELATIVE);
1619 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GOTOFF);
1620 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GOTPC);
1621 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_32PLT);
1622 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_TPOFF);
1623 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_IE);
1624 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GOTIE);
1625 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LE);
1626 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD);
1627 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM);
1628 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_16);
1629 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PC16);
1630 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_8);
1631 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PC8);
1632 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_32);
1633 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_PUSH);
1634 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_CALL);
1635 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_POP);
1636 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_32);
1637 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_PUSH);
1638 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_CALL);
1639 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_POP);
1640 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDO_32);
1641 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_IE_32);
1642 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LE_32);
1643 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DTPMOD32);
1644 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DTPOFF32);
1645 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_TPOFF32);
1646 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GOTDESC);
1647 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DESC_CALL);
1648 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DESC);
1649 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_IRELATIVE);
1655 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_NONE);
1656 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_16);
1657 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_32);
1658 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_REL32);
1659 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_26);
1660 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_HI16);
1661 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_LO16);
1662 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GPREL16);
1663 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_LITERAL);
1664 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GOT16);
1665 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_PC16);
1666 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_CALL16);
1667 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GPREL32);
1668 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_SHIFT5);
1669 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_SHIFT6);
1670 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_64);
1671 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GOT_DISP);
1672 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GOT_PAGE);
1673 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GOT_OFST);
1674 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GOT_HI16);
1675 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GOT_LO16);
1676 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_SUB);
1677 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_INSERT_A);
1678 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_INSERT_B);
1679 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_DELETE);
1680 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_HIGHER);
1681 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_HIGHEST);
1682 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_CALL_HI16);
1683 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_CALL_LO16);
1684 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_SCN_DISP);
1685 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_REL16);
1686 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_ADD_IMMEDIATE);
1687 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_PJUMP);
1688 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_RELGOT);
1689 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_JALR);
1690 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_DTPMOD32);
1691 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_DTPREL32);
1692 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_DTPMOD64);
1693 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_DTPREL64);
1694 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_GD);
1695 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_LDM);
1696 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_DTPREL_HI16);
1697 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_DTPREL_LO16);
1698 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_GOTTPREL);
1699 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_TPREL32);
1700 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_TPREL64);
1701 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_TPREL_HI16);
1702 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_TPREL_LO16);
1703 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GLOB_DAT);
1704 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_COPY);
1705 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_JUMP_SLOT);
1706 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_NUM);
1710 case ELF::EM_AARCH64:
1712 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_NONE);
1713 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_ABS64);
1714 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_ABS32);
1715 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_ABS16);
1716 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_PREL64);
1717 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_PREL32);
1718 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_PREL16);
1719 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_UABS_G0);
1720 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_UABS_G0_NC);
1721 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_UABS_G1);
1722 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_UABS_G1_NC);
1723 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_UABS_G2);
1724 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_UABS_G2_NC);
1725 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_UABS_G3);
1726 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_SABS_G0);
1727 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_SABS_G1);
1728 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_SABS_G2);
1729 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_LD_PREL_LO19);
1730 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_ADR_PREL_LO21);
1731 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_ADR_PREL_PG_HI21);
1732 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_ADD_ABS_LO12_NC);
1733 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_LDST8_ABS_LO12_NC);
1734 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TSTBR14);
1735 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_CONDBR19);
1736 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_JUMP26);
1737 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_CALL26);
1738 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_LDST16_ABS_LO12_NC);
1739 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_LDST32_ABS_LO12_NC);
1740 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_LDST64_ABS_LO12_NC);
1741 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_LDST128_ABS_LO12_NC);
1742 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_ADR_GOT_PAGE);
1743 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_LD64_GOT_LO12_NC);
1744 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_MOVW_DTPREL_G2);
1745 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_MOVW_DTPREL_G1);
1746 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_MOVW_DTPREL_G1_NC);
1747 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_MOVW_DTPREL_G0);
1748 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_MOVW_DTPREL_G0_NC);
1749 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_ADD_DTPREL_HI12);
1750 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_ADD_DTPREL_LO12);
1751 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_ADD_DTPREL_LO12_NC);
1752 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_LDST8_DTPREL_LO12);
1753 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_LDST8_DTPREL_LO12_NC);
1754 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_LDST16_DTPREL_LO12);
1755 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_LDST16_DTPREL_LO12_NC);
1756 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_LDST32_DTPREL_LO12);
1757 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_LDST32_DTPREL_LO12_NC);
1758 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_LDST64_DTPREL_LO12);
1759 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_LDST64_DTPREL_LO12_NC);
1760 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSIE_MOVW_GOTTPREL_G1);
1761 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC);
1762 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21);
1763 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC);
1764 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSIE_LD_GOTTPREL_PREL19);
1765 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_MOVW_TPREL_G2);
1766 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_MOVW_TPREL_G1);
1767 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_MOVW_TPREL_G1_NC);
1768 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_MOVW_TPREL_G0);
1769 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_MOVW_TPREL_G0_NC);
1770 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_ADD_TPREL_HI12);
1771 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_ADD_TPREL_LO12);
1772 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_ADD_TPREL_LO12_NC);
1773 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_LDST8_TPREL_LO12);
1774 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_LDST8_TPREL_LO12_NC);
1775 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_LDST16_TPREL_LO12);
1776 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_LDST16_TPREL_LO12_NC);
1777 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_LDST32_TPREL_LO12);
1778 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_LDST32_TPREL_LO12_NC);
1779 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_LDST64_TPREL_LO12);
1780 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_LDST64_TPREL_LO12_NC);
1781 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSDESC_ADR_PAGE);
1782 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSDESC_LD64_LO12_NC);
1783 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSDESC_ADD_LO12_NC);
1784 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSDESC_CALL);
1790 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_NONE);
1791 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PC24);
1792 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS32);
1793 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_REL32);
1794 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_PC_G0);
1795 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS16);
1796 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS12);
1797 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_ABS5);
1798 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS8);
1799 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_SBREL32);
1800 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_CALL);
1801 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_PC8);
1802 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_BREL_ADJ);
1803 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_DESC);
1804 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_SWI8);
1805 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_XPC25);
1806 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_XPC22);
1807 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_DTPMOD32);
1808 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_DTPOFF32);
1809 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_TPOFF32);
1810 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_COPY);
1811 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GLOB_DAT);
1812 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_JUMP_SLOT);
1813 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_RELATIVE);
1814 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOTOFF32);
1815 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_BASE_PREL);
1816 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOT_BREL);
1817 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PLT32);
1818 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_CALL);
1819 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_JUMP24);
1820 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP24);
1821 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_BASE_ABS);
1822 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PCREL_7_0);
1823 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PCREL_15_8);
1824 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PCREL_23_15);
1825 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_SBREL_11_0_NC);
1826 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SBREL_19_12_NC);
1827 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SBREL_27_20_CK);
1828 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TARGET1);
1829 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_SBREL31);
1830 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_V4BX);
1831 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TARGET2);
1832 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PREL31);
1833 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVW_ABS_NC);
1834 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVT_ABS);
1835 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVW_PREL_NC);
1836 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVT_PREL);
1837 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVW_ABS_NC);
1838 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVT_ABS);
1839 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVW_PREL_NC);
1840 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVT_PREL);
1841 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP19);
1842 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP6);
1843 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_ALU_PREL_11_0);
1844 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_PC12);
1845 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS32_NOI);
1846 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_REL32_NOI);
1847 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G0_NC);
1848 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G0);
1849 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G1_NC);
1850 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G1);
1851 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G2);
1852 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_PC_G1);
1853 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_PC_G2);
1854 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_PC_G0);
1855 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_PC_G1);
1856 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_PC_G2);
1857 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_PC_G0);
1858 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_PC_G1);
1859 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_PC_G2);
1860 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G0_NC);
1861 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G0);
1862 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G1_NC);
1863 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G1);
1864 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G2);
1865 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_SB_G0);
1866 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_SB_G1);
1867 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_SB_G2);
1868 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_SB_G0);
1869 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_SB_G1);
1870 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_SB_G2);
1871 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_SB_G0);
1872 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_SB_G1);
1873 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_SB_G2);
1874 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVW_BREL_NC);
1875 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVT_BREL);
1876 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVW_BREL);
1877 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVW_BREL_NC);
1878 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVT_BREL);
1879 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVW_BREL);
1880 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_GOTDESC);
1881 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_CALL);
1882 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_DESCSEQ);
1883 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_TLS_CALL);
1884 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PLT32_ABS);
1885 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOT_ABS);
1886 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOT_PREL);
1887 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOT_BREL12);
1888 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOTOFF12);
1889 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOTRELAX);
1890 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GNU_VTENTRY);
1891 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GNU_VTINHERIT);
1892 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP11);
1893 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP8);
1894 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_GD32);
1895 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LDM32);
1896 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LDO32);
1897 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_IE32);
1898 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LE32);
1899 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LDO12);
1900 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LE12);
1901 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_IE12GP);
1902 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_0);
1903 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_1);
1904 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_2);
1905 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_3);
1906 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_4);
1907 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_5);
1908 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_6);
1909 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_7);
1910 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_8);
1911 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_9);
1912 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_10);
1913 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_11);
1914 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_12);
1915 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_13);
1916 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_14);
1917 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_15);
1918 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ME_TOO);
1919 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_TLS_DESCSEQ16);
1920 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_TLS_DESCSEQ32);
1924 case ELF::EM_HEXAGON:
1926 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_NONE);
1927 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B22_PCREL);
1928 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B15_PCREL);
1929 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B7_PCREL);
1930 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_LO16);
1931 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_HI16);
1932 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_32);
1933 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_16);
1934 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_8);
1935 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GPREL16_0);
1936 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GPREL16_1);
1937 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GPREL16_2);
1938 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GPREL16_3);
1939 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_HL16);
1940 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B13_PCREL);
1941 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B9_PCREL);
1942 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B32_PCREL_X);
1943 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_32_6_X);
1944 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B22_PCREL_X);
1945 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B15_PCREL_X);
1946 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B13_PCREL_X);
1947 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B9_PCREL_X);
1948 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B7_PCREL_X);
1949 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_16_X);
1950 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_12_X);
1951 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_11_X);
1952 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_10_X);
1953 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_9_X);
1954 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_8_X);
1955 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_7_X);
1956 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_6_X);
1957 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_32_PCREL);
1958 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_COPY);
1959 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GLOB_DAT);
1960 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_JMP_SLOT);
1961 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_RELATIVE);
1962 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_PLT_B22_PCREL);
1963 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_LO16);
1964 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_HI16);
1965 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_32);
1966 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_LO16);
1967 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_HI16);
1968 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_32);
1969 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_16);
1970 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPMOD_32);
1971 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_LO16);
1972 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_HI16);
1973 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_32);
1974 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_16);
1975 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_PLT_B22_PCREL);
1976 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_LO16);
1977 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_HI16);
1978 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_32);
1979 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_16);
1980 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_LO16);
1981 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_HI16);
1982 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_32);
1983 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_LO16);
1984 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_HI16);
1985 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_32);
1986 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_16);
1987 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_LO16);
1988 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_HI16);
1989 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_32);
1990 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_16);
1991 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_6_PCREL_X);
1992 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_32_6_X);
1993 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_16_X);
1994 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_11_X);
1995 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_32_6_X);
1996 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_16_X);
1997 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_11_X);
1998 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_32_6_X);
1999 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_16_X);
2000 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_11_X);
2001 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_32_6_X);
2002 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_16_X);
2003 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_11_X);
2004 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_32_6_X);
2005 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_16_X);
2006 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_32_6_X);
2007 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_16_X);
2008 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_11_X);
2009 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_32_6_X);
2010 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_16_X);
2011 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_11_X);
2017 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_NONE);
2018 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR32);
2019 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR24);
2020 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR16);
2021 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR16_LO);
2022 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR16_HI);
2023 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR16_HA);
2024 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR14);
2025 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR14_BRTAKEN);
2026 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR14_BRNTAKEN);
2027 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_REL24);
2028 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_REL14);
2029 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_REL14_BRTAKEN);
2030 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_REL14_BRNTAKEN);
2031 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_REL32);
2032 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_TPREL16_LO);
2033 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_TPREL16_HA);
2039 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_NONE);
2040 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR32);
2041 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR24);
2042 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR16);
2043 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR16_LO);
2044 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR16_HI);
2045 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR16_HA);
2046 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR14);
2047 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR14_BRTAKEN);
2048 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR14_BRNTAKEN);
2049 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_REL24);
2050 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_REL14);
2051 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_REL14_BRTAKEN);
2052 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_REL14_BRNTAKEN);
2053 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_REL32);
2054 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR64);
2055 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR16_HIGHER);
2056 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR16_HIGHEST);
2057 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_REL64);
2058 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TOC16);
2059 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TOC16_LO);
2060 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TOC16_HA);
2061 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TOC);
2062 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR16_DS);
2063 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR16_LO_DS);
2064 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TOC16_DS);
2065 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TOC16_LO_DS);
2066 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TLS);
2067 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TPREL16_LO);
2068 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TPREL16_HA);
2069 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_DTPREL16_LO);
2070 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_DTPREL16_HA);
2071 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_GOT_TLSGD16_LO);
2072 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_GOT_TLSGD16_HA);
2073 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_GOT_TLSLD16_LO);
2074 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_GOT_TLSLD16_HA);
2075 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_GOT_TPREL16_LO_DS);
2076 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_GOT_TPREL16_HA);
2077 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TLSGD);
2078 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TLSLD);
2084 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_NONE);
2085 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_8);
2086 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_12);
2087 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_16);
2088 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_32);
2089 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PC32);
2090 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOT12);
2091 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOT32);
2092 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PLT32);
2093 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_COPY);
2094 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GLOB_DAT);
2095 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_JMP_SLOT);
2096 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_RELATIVE);
2097 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTOFF);
2098 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTPC);
2099 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOT16);
2100 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PC16);
2101 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PC16DBL);
2102 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PLT16DBL);
2103 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PC32DBL);
2104 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PLT32DBL);
2105 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTPCDBL);
2106 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_64);
2107 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PC64);
2108 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOT64);
2109 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PLT64);
2110 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTENT);
2111 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTOFF16);
2112 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTOFF64);
2113 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTPLT12);
2114 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTPLT16);
2115 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTPLT32);
2116 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTPLT64);
2117 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTPLTENT);
2118 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PLTOFF16);
2119 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PLTOFF32);
2120 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PLTOFF64);
2121 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_LOAD);
2122 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_GDCALL);
2123 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_LDCALL);
2124 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_GD32);
2125 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_GD64);
2126 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_GOTIE12);
2127 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_GOTIE32);
2128 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_GOTIE64);
2129 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_LDM32);
2130 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_LDM64);
2131 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_IE32);
2132 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_IE64);
2133 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_IEENT);
2134 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_LE32);
2135 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_LE64);
2136 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_LDO32);
2137 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_LDO64);
2138 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_DTPMOD);
2139 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_DTPOFF);
2140 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_TPOFF);
2141 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_20);
2142 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOT20);
2143 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTPLT20);
2144 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_GOTIE20);
2145 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_IRELATIVE);
2154 #undef LLVM_ELF_SWITCH_RELOC_TYPE_NAME
2156 template<class ELFT>
2157 error_code ELFObjectFile<ELFT>::getRelocationTypeName(
2158 DataRefImpl Rel, SmallVectorImpl<char> &Result) const {
2159 const Elf_Shdr *sec = getRelSection(Rel);
2161 switch (sec->sh_type) {
2163 return object_error::parse_failed;
2164 case ELF::SHT_REL : {
2165 type = getRel(Rel)->getType(isMips64EL());
2168 case ELF::SHT_RELA : {
2169 type = getRela(Rel)->getType(isMips64EL());
2174 if (!isMips64EL()) {
2175 StringRef Name = getRelocationTypeName(type);
2176 Result.append(Name.begin(), Name.end());
2178 uint8_t Type1 = (type >> 0) & 0xFF;
2179 uint8_t Type2 = (type >> 8) & 0xFF;
2180 uint8_t Type3 = (type >> 16) & 0xFF;
2182 // Concat all three relocation type names.
2183 StringRef Name = getRelocationTypeName(Type1);
2184 Result.append(Name.begin(), Name.end());
2186 Name = getRelocationTypeName(Type2);
2187 Result.append(1, '/');
2188 Result.append(Name.begin(), Name.end());
2190 Name = getRelocationTypeName(Type3);
2191 Result.append(1, '/');
2192 Result.append(Name.begin(), Name.end());
2195 return object_error::success;
2198 template<class ELFT>
2199 error_code ELFObjectFile<ELFT>::getRelocationAddend(
2200 DataRefImpl Rel, int64_t &Result) const {
2201 const Elf_Shdr *sec = getRelSection(Rel);
2202 switch (sec->sh_type) {
2204 report_fatal_error("Invalid section type in Rel!");
2205 case ELF::SHT_REL : {
2207 return object_error::success;
2209 case ELF::SHT_RELA : {
2210 Result = getRela(Rel)->r_addend;
2211 return object_error::success;
2216 template<class ELFT>
2217 error_code ELFObjectFile<ELFT>::getRelocationValueString(
2218 DataRefImpl Rel, SmallVectorImpl<char> &Result) const {
2219 const Elf_Shdr *sec = getRelSection(Rel);
2223 uint16_t symbol_index = 0;
2224 switch (sec->sh_type) {
2226 return object_error::parse_failed;
2227 case ELF::SHT_REL: {
2228 type = getRel(Rel)->getType(isMips64EL());
2229 symbol_index = getRel(Rel)->getSymbol(isMips64EL());
2230 // TODO: Read implicit addend from section data.
2233 case ELF::SHT_RELA: {
2234 type = getRela(Rel)->getType(isMips64EL());
2235 symbol_index = getRela(Rel)->getSymbol(isMips64EL());
2236 addend = getRela(Rel)->r_addend;
2240 const Elf_Sym *symb = getEntry<Elf_Sym>(sec->sh_link, symbol_index);
2242 if (error_code ec = getSymbolName(getSection(sec->sh_link), symb, symname))
2244 switch (Header->e_machine) {
2245 case ELF::EM_X86_64:
2247 case ELF::R_X86_64_PC8:
2248 case ELF::R_X86_64_PC16:
2249 case ELF::R_X86_64_PC32: {
2251 raw_string_ostream fmt(fmtbuf);
2252 fmt << symname << (addend < 0 ? "" : "+") << addend << "-P";
2254 Result.append(fmtbuf.begin(), fmtbuf.end());
2257 case ELF::R_X86_64_8:
2258 case ELF::R_X86_64_16:
2259 case ELF::R_X86_64_32:
2260 case ELF::R_X86_64_32S:
2261 case ELF::R_X86_64_64: {
2263 raw_string_ostream fmt(fmtbuf);
2264 fmt << symname << (addend < 0 ? "" : "+") << addend;
2266 Result.append(fmtbuf.begin(), fmtbuf.end());
2273 case ELF::EM_AARCH64: {
2275 raw_string_ostream fmt(fmtbuf);
2278 fmt << (addend < 0 ? "" : "+") << addend;
2280 Result.append(fmtbuf.begin(), fmtbuf.end());
2284 case ELF::EM_HEXAGON:
2291 Result.append(res.begin(), res.end());
2292 return object_error::success;
2295 // Verify that the last byte in the string table in a null.
2296 template<class ELFT>
2297 void ELFObjectFile<ELFT>::VerifyStrTab(const Elf_Shdr *sh) const {
2298 const char *strtab = (const char*)base() + sh->sh_offset;
2299 if (strtab[sh->sh_size - 1] != 0)
2300 // FIXME: Proper error handling.
2301 report_fatal_error("String table must end with a null terminator!");
2304 template<class ELFT>
2305 ELFObjectFile<ELFT>::ELFObjectFile(MemoryBuffer *Object, error_code &ec)
2306 : ObjectFile(getELFType(
2307 static_cast<endianness>(ELFT::TargetEndianness) == support::little,
2310 , isDyldELFObject(false)
2311 , SectionHeaderTable(0)
2312 , dot_shstrtab_sec(0)
2315 , dot_dynamic_sec(0)
2316 , dot_gnu_version_sec(0)
2317 , dot_gnu_version_r_sec(0)
2318 , dot_gnu_version_d_sec(0)
2322 const uint64_t FileSize = Data->getBufferSize();
2324 if (sizeof(Elf_Ehdr) > FileSize)
2325 // FIXME: Proper error handling.
2326 report_fatal_error("File too short!");
2328 Header = reinterpret_cast<const Elf_Ehdr *>(base());
2330 if (Header->e_shoff == 0)
2333 const uint64_t SectionTableOffset = Header->e_shoff;
2335 if (SectionTableOffset + sizeof(Elf_Shdr) > FileSize)
2336 // FIXME: Proper error handling.
2337 report_fatal_error("Section header table goes past end of file!");
2339 // The getNumSections() call below depends on SectionHeaderTable being set.
2340 SectionHeaderTable =
2341 reinterpret_cast<const Elf_Shdr *>(base() + SectionTableOffset);
2342 const uint64_t SectionTableSize = getNumSections() * Header->e_shentsize;
2344 if (SectionTableOffset + SectionTableSize > FileSize)
2345 // FIXME: Proper error handling.
2346 report_fatal_error("Section table goes past end of file!");
2348 // To find the symbol tables we walk the section table to find SHT_SYMTAB.
2349 const Elf_Shdr* SymbolTableSectionHeaderIndex = 0;
2350 const Elf_Shdr* sh = SectionHeaderTable;
2352 SymbolTableIndex = -1;
2353 DynamicSymbolTableIndex = -1;
2355 for (uint64_t i = 0, e = getNumSections(); i != e; ++i) {
2356 switch (sh->sh_type) {
2357 case ELF::SHT_SYMTAB_SHNDX: {
2358 if (SymbolTableSectionHeaderIndex)
2359 // FIXME: Proper error handling.
2360 report_fatal_error("More than one .symtab_shndx!");
2361 SymbolTableSectionHeaderIndex = sh;
2364 case ELF::SHT_SYMTAB: {
2365 if (SymbolTableIndex != -1)
2366 report_fatal_error("More than one SHT_SYMTAB!");
2367 SymbolTableIndex = i;
2370 case ELF::SHT_DYNSYM: {
2371 if (DynamicSymbolTableIndex != -1)
2372 // FIXME: Proper error handling.
2373 report_fatal_error("More than one SHT_DYNSYM!");
2374 DynamicSymbolTableIndex = i;
2380 case ELF::SHT_DYNAMIC: {
2381 if (dot_dynamic_sec != NULL)
2382 // FIXME: Proper error handling.
2383 report_fatal_error("More than one .dynamic!");
2384 dot_dynamic_sec = sh;
2387 case ELF::SHT_GNU_versym: {
2388 if (dot_gnu_version_sec != NULL)
2389 // FIXME: Proper error handling.
2390 report_fatal_error("More than one .gnu.version section!");
2391 dot_gnu_version_sec = sh;
2394 case ELF::SHT_GNU_verdef: {
2395 if (dot_gnu_version_d_sec != NULL)
2396 // FIXME: Proper error handling.
2397 report_fatal_error("More than one .gnu.version_d section!");
2398 dot_gnu_version_d_sec = sh;
2401 case ELF::SHT_GNU_verneed: {
2402 if (dot_gnu_version_r_sec != NULL)
2403 // FIXME: Proper error handling.
2404 report_fatal_error("More than one .gnu.version_r section!");
2405 dot_gnu_version_r_sec = sh;
2412 // Get string table sections.
2413 dot_shstrtab_sec = getSection(getStringTableIndex());
2414 if (dot_shstrtab_sec) {
2415 // Verify that the last byte in the string table in a null.
2416 VerifyStrTab(dot_shstrtab_sec);
2419 // Merge this into the above loop.
2420 for (const char *i = reinterpret_cast<const char *>(SectionHeaderTable),
2421 *e = i + getNumSections() * Header->e_shentsize;
2422 i != e; i += Header->e_shentsize) {
2423 const Elf_Shdr *sh = reinterpret_cast<const Elf_Shdr*>(i);
2424 if (sh->sh_type == ELF::SHT_STRTAB) {
2425 StringRef SectionName(getString(dot_shstrtab_sec, sh->sh_name));
2426 if (SectionName == ".strtab") {
2427 if (dot_strtab_sec != 0)
2428 // FIXME: Proper error handling.
2429 report_fatal_error("Already found section named .strtab!");
2430 dot_strtab_sec = sh;
2431 VerifyStrTab(dot_strtab_sec);
2432 } else if (SectionName == ".dynstr") {
2433 if (dot_dynstr_sec != 0)
2434 // FIXME: Proper error handling.
2435 report_fatal_error("Already found section named .dynstr!");
2436 dot_dynstr_sec = sh;
2437 VerifyStrTab(dot_dynstr_sec);
2442 // Build symbol name side-mapping if there is one.
2443 if (SymbolTableSectionHeaderIndex) {
2444 const Elf_Word *ShndxTable = reinterpret_cast<const Elf_Word*>(base() +
2445 SymbolTableSectionHeaderIndex->sh_offset);
2447 for (symbol_iterator si = begin_symbols(),
2448 se = end_symbols(); si != se; si.increment(ec)) {
2450 report_fatal_error("Fewer extended symbol table entries than symbols!");
2451 if (*ShndxTable != ELF::SHN_UNDEF)
2452 ExtendedSymbolTable[getSymbol(si->getRawDataRefImpl())] = *ShndxTable;
2458 // Get the symbol table index in the symtab section given a symbol
2459 template<class ELFT>
2460 uint64_t ELFObjectFile<ELFT>::getSymbolIndex(const Elf_Sym *Sym) const {
2461 const Elf_Shdr *SymTab = getSection(SymbolTableIndex);
2462 uintptr_t SymLoc = uintptr_t(Sym);
2463 uintptr_t SymTabLoc = uintptr_t(base() + SymTab->sh_offset);
2464 assert(SymLoc > SymTabLoc && "Symbol not in symbol table!");
2465 uint64_t SymOffset = SymLoc - SymTabLoc;
2466 assert(SymOffset % SymTab->sh_entsize == 0 &&
2467 "Symbol not multiple of symbol size!");
2468 return SymOffset / SymTab->sh_entsize;
2471 template<class ELFT>
2472 symbol_iterator ELFObjectFile<ELFT>::begin_symbols() const {
2473 DataRefImpl SymbolData;
2474 if (SymbolTableIndex == -1) {
2479 SymbolData.d.b = SymbolTableIndex;
2481 return symbol_iterator(SymbolRef(SymbolData, this));
2484 template<class ELFT>
2485 symbol_iterator ELFObjectFile<ELFT>::end_symbols() const {
2486 DataRefImpl SymbolData;
2487 if (SymbolTableIndex == -1) {
2491 const Elf_Shdr *SymbolTableSection = getSection(SymbolTableIndex);
2492 SymbolData.d.a = SymbolTableSection->getEntityCount();
2493 SymbolData.d.b = SymbolTableIndex;
2495 return symbol_iterator(SymbolRef(SymbolData, this));
2498 template<class ELFT>
2499 symbol_iterator ELFObjectFile<ELFT>::begin_dynamic_symbols() const {
2500 DataRefImpl SymbolData;
2501 if (DynamicSymbolTableIndex == -1) {
2506 SymbolData.d.b = DynamicSymbolTableIndex;
2508 return symbol_iterator(SymbolRef(SymbolData, this));
2511 template<class ELFT>
2512 symbol_iterator ELFObjectFile<ELFT>::end_dynamic_symbols() const {
2513 DataRefImpl SymbolData;
2514 if (DynamicSymbolTableIndex == -1) {
2518 const Elf_Shdr *SymbolTableSection = getSection(DynamicSymbolTableIndex);
2519 SymbolData.d.a = SymbolTableSection->getEntityCount();
2520 SymbolData.d.b = DynamicSymbolTableIndex;
2522 return symbol_iterator(SymbolRef(SymbolData, this));
2525 template<class ELFT>
2526 section_iterator ELFObjectFile<ELFT>::begin_sections() const {
2528 ret.p = reinterpret_cast<intptr_t>(base() + Header->e_shoff);
2529 return section_iterator(SectionRef(ret, this));
2532 template<class ELFT>
2533 section_iterator ELFObjectFile<ELFT>::end_sections() const {
2535 ret.p = reinterpret_cast<intptr_t>(base()
2537 + (Header->e_shentsize*getNumSections()));
2538 return section_iterator(SectionRef(ret, this));
2541 template<class ELFT>
2542 typename ELFObjectFile<ELFT>::Elf_Dyn_iterator
2543 ELFObjectFile<ELFT>::begin_dynamic_table() const {
2544 if (dot_dynamic_sec)
2545 return Elf_Dyn_iterator(dot_dynamic_sec->sh_entsize,
2546 (const char *)base() + dot_dynamic_sec->sh_offset);
2547 return Elf_Dyn_iterator(0, 0);
2550 template<class ELFT>
2551 typename ELFObjectFile<ELFT>::Elf_Dyn_iterator
2552 ELFObjectFile<ELFT>::end_dynamic_table(bool NULLEnd) const {
2553 if (dot_dynamic_sec) {
2554 Elf_Dyn_iterator Ret(dot_dynamic_sec->sh_entsize,
2555 (const char *)base() + dot_dynamic_sec->sh_offset +
2556 dot_dynamic_sec->sh_size);
2559 Elf_Dyn_iterator Start = begin_dynamic_table();
2560 while (Start != Ret && Start->getTag() != ELF::DT_NULL)
2563 // Include the DT_NULL.
2570 return Elf_Dyn_iterator(0, 0);
2573 template<class ELFT>
2574 StringRef ELFObjectFile<ELFT>::getLoadName() const {
2576 // Find the DT_SONAME entry
2577 Elf_Dyn_iterator it = begin_dynamic_table();
2578 Elf_Dyn_iterator ie = end_dynamic_table();
2579 while (it != ie && it->getTag() != ELF::DT_SONAME)
2583 if (dot_dynstr_sec == NULL)
2584 report_fatal_error("Dynamic string table is missing");
2585 dt_soname = getString(dot_dynstr_sec, it->getVal());
2593 template<class ELFT>
2594 library_iterator ELFObjectFile<ELFT>::begin_libraries_needed() const {
2595 // Find the first DT_NEEDED entry
2596 Elf_Dyn_iterator i = begin_dynamic_table();
2597 Elf_Dyn_iterator e = end_dynamic_table();
2598 while (i != e && i->getTag() != ELF::DT_NEEDED)
2602 DRI.p = reinterpret_cast<uintptr_t>(i.get());
2603 return library_iterator(LibraryRef(DRI, this));
2606 template<class ELFT>
2607 error_code ELFObjectFile<ELFT>::getLibraryNext(DataRefImpl Data,
2608 LibraryRef &Result) const {
2609 // Use the same DataRefImpl format as DynRef.
2610 Elf_Dyn_iterator i = Elf_Dyn_iterator(dot_dynamic_sec->sh_entsize,
2611 reinterpret_cast<const char *>(Data.p));
2612 Elf_Dyn_iterator e = end_dynamic_table();
2614 // Skip the current dynamic table entry and find the next DT_NEEDED entry.
2617 while (i != e && i->getTag() != ELF::DT_NEEDED);
2620 DRI.p = reinterpret_cast<uintptr_t>(i.get());
2621 Result = LibraryRef(DRI, this);
2622 return object_error::success;
2625 template<class ELFT>
2626 error_code ELFObjectFile<ELFT>::getLibraryPath(DataRefImpl Data,
2627 StringRef &Res) const {
2628 Elf_Dyn_iterator i = Elf_Dyn_iterator(dot_dynamic_sec->sh_entsize,
2629 reinterpret_cast<const char *>(Data.p));
2630 if (i == end_dynamic_table())
2631 report_fatal_error("getLibraryPath() called on iterator end");
2633 if (i->getTag() != ELF::DT_NEEDED)
2634 report_fatal_error("Invalid library_iterator");
2636 // This uses .dynstr to lookup the name of the DT_NEEDED entry.
2637 // THis works as long as DT_STRTAB == .dynstr. This is true most of
2638 // the time, but the specification allows exceptions.
2639 // TODO: This should really use DT_STRTAB instead. Doing this requires
2640 // reading the program headers.
2641 if (dot_dynstr_sec == NULL)
2642 report_fatal_error("Dynamic string table is missing");
2643 Res = getString(dot_dynstr_sec, i->getVal());
2644 return object_error::success;
2647 template<class ELFT>
2648 library_iterator ELFObjectFile<ELFT>::end_libraries_needed() const {
2649 Elf_Dyn_iterator e = end_dynamic_table();
2651 DRI.p = reinterpret_cast<uintptr_t>(e.get());
2652 return library_iterator(LibraryRef(DRI, this));
2655 template<class ELFT>
2656 uint8_t ELFObjectFile<ELFT>::getBytesInAddress() const {
2657 return ELFT::Is64Bits ? 8 : 4;
2660 template<class ELFT>
2661 StringRef ELFObjectFile<ELFT>::getFileFormatName() const {
2662 switch(Header->e_ident[ELF::EI_CLASS]) {
2663 case ELF::ELFCLASS32:
2664 switch(Header->e_machine) {
2666 return "ELF32-i386";
2667 case ELF::EM_X86_64:
2668 return "ELF32-x86-64";
2671 case ELF::EM_HEXAGON:
2672 return "ELF32-hexagon";
2674 return "ELF32-mips";
2678 return "ELF32-unknown";
2680 case ELF::ELFCLASS64:
2681 switch(Header->e_machine) {
2683 return "ELF64-i386";
2684 case ELF::EM_X86_64:
2685 return "ELF64-x86-64";
2686 case ELF::EM_AARCH64:
2687 return "ELF64-aarch64";
2689 return "ELF64-ppc64";
2691 return "ELF64-s390";
2693 return "ELF64-unknown";
2696 // FIXME: Proper error handling.
2697 report_fatal_error("Invalid ELFCLASS!");
2701 template<class ELFT>
2702 unsigned ELFObjectFile<ELFT>::getArch() const {
2703 switch(Header->e_machine) {
2706 case ELF::EM_X86_64:
2707 return Triple::x86_64;
2708 case ELF::EM_AARCH64:
2709 return Triple::aarch64;
2712 case ELF::EM_HEXAGON:
2713 return Triple::hexagon;
2715 return (ELFT::TargetEndianness == support::little) ?
2716 Triple::mipsel : Triple::mips;
2718 return Triple::ppc64;
2720 return Triple::systemz;
2722 return Triple::UnknownArch;
2726 template<class ELFT>
2727 uint64_t ELFObjectFile<ELFT>::getNumSections() const {
2728 assert(Header && "Header not initialized!");
2729 if (Header->e_shnum == ELF::SHN_UNDEF) {
2730 assert(SectionHeaderTable && "SectionHeaderTable not initialized!");
2731 return SectionHeaderTable->sh_size;
2733 return Header->e_shnum;
2736 template<class ELFT>
2738 ELFObjectFile<ELFT>::getStringTableIndex() const {
2739 if (Header->e_shnum == ELF::SHN_UNDEF) {
2740 if (Header->e_shstrndx == ELF::SHN_HIRESERVE)
2741 return SectionHeaderTable->sh_link;
2742 if (Header->e_shstrndx >= getNumSections())
2745 return Header->e_shstrndx;
2748 template<class ELFT>
2749 template<typename T>
2751 ELFObjectFile<ELFT>::getEntry(uint32_t Section, uint32_t Entry) const {
2752 return getEntry<T>(getSection(Section), Entry);
2755 template<class ELFT>
2756 template<typename T>
2758 ELFObjectFile<ELFT>::getEntry(const Elf_Shdr * Section, uint32_t Entry) const {
2759 return reinterpret_cast<const T *>(
2761 + Section->sh_offset
2762 + (Entry * Section->sh_entsize));
2765 template<class ELFT>
2766 const typename ELFObjectFile<ELFT>::Elf_Sym *
2767 ELFObjectFile<ELFT>::getSymbol(DataRefImpl Symb) const {
2768 return getEntry<Elf_Sym>(Symb.d.b, Symb.d.a);
2771 template<class ELFT>
2772 const typename ELFObjectFile<ELFT>::Elf_Rel *
2773 ELFObjectFile<ELFT>::getRel(DataRefImpl Rel) const {
2774 return getEntry<Elf_Rel>(Rel.d.a, Rel.d.b);
2777 template<class ELFT>
2778 const typename ELFObjectFile<ELFT>::Elf_Rela *
2779 ELFObjectFile<ELFT>::getRela(DataRefImpl Rela) const {
2780 return getEntry<Elf_Rela>(Rela.d.a, Rela.d.b);
2783 template<class ELFT>
2784 const typename ELFObjectFile<ELFT>::Elf_Shdr *
2785 ELFObjectFile<ELFT>::getSection(DataRefImpl Symb) const {
2786 const Elf_Shdr *sec = getSection(Symb.d.b);
2787 if (sec->sh_type != ELF::SHT_SYMTAB || sec->sh_type != ELF::SHT_DYNSYM)
2788 // FIXME: Proper error handling.
2789 report_fatal_error("Invalid symbol table section!");
2793 template<class ELFT>
2794 const typename ELFObjectFile<ELFT>::Elf_Shdr *
2795 ELFObjectFile<ELFT>::getSection(uint32_t index) const {
2798 if (!SectionHeaderTable || index >= getNumSections())
2799 // FIXME: Proper error handling.
2800 report_fatal_error("Invalid section index!");
2802 return reinterpret_cast<const Elf_Shdr *>(
2803 reinterpret_cast<const char *>(SectionHeaderTable)
2804 + (index * Header->e_shentsize));
2807 template<class ELFT>
2808 const char *ELFObjectFile<ELFT>::getString(uint32_t section,
2809 ELF::Elf32_Word offset) const {
2810 return getString(getSection(section), offset);
2813 template<class ELFT>
2814 const char *ELFObjectFile<ELFT>::getString(const Elf_Shdr *section,
2815 ELF::Elf32_Word offset) const {
2816 assert(section && section->sh_type == ELF::SHT_STRTAB && "Invalid section!");
2817 if (offset >= section->sh_size)
2818 // FIXME: Proper error handling.
2819 report_fatal_error("Symbol name offset outside of string table!");
2820 return (const char *)base() + section->sh_offset + offset;
2823 template<class ELFT>
2824 error_code ELFObjectFile<ELFT>::getSymbolName(const Elf_Shdr *section,
2825 const Elf_Sym *symb,
2826 StringRef &Result) const {
2827 if (symb->st_name == 0) {
2828 const Elf_Shdr *section = getSection(symb);
2832 Result = getString(dot_shstrtab_sec, section->sh_name);
2833 return object_error::success;
2836 if (DynamicSymbolTableIndex != -1 &&
2837 section == getSection(DynamicSymbolTableIndex)) {
2838 // Symbol is in .dynsym, use .dynstr string table
2839 Result = getString(dot_dynstr_sec, symb->st_name);
2841 // Use the default symbol table name section.
2842 Result = getString(dot_strtab_sec, symb->st_name);
2844 return object_error::success;
2847 template<class ELFT>
2848 error_code ELFObjectFile<ELFT>::getSectionName(const Elf_Shdr *section,
2849 StringRef &Result) const {
2850 Result = StringRef(getString(dot_shstrtab_sec, section->sh_name));
2851 return object_error::success;
2854 template<class ELFT>
2855 error_code ELFObjectFile<ELFT>::getSymbolVersion(const Elf_Shdr *section,
2856 const Elf_Sym *symb,
2858 bool &IsDefault) const {
2859 // Handle non-dynamic symbols.
2860 if (section != getSection(DynamicSymbolTableIndex)) {
2861 // Non-dynamic symbols can have versions in their names
2862 // A name of the form 'foo@V1' indicates version 'V1', non-default.
2863 // A name of the form 'foo@@V2' indicates version 'V2', default version.
2865 error_code ec = getSymbolName(section, symb, Name);
2866 if (ec != object_error::success)
2868 size_t atpos = Name.find('@');
2869 if (atpos == StringRef::npos) {
2872 return object_error::success;
2875 if (atpos < Name.size() && Name[atpos] == '@') {
2881 Version = Name.substr(atpos);
2882 return object_error::success;
2885 // This is a dynamic symbol. Look in the GNU symbol version table.
2886 if (dot_gnu_version_sec == NULL) {
2887 // No version table.
2890 return object_error::success;
2893 // Determine the position in the symbol table of this entry.
2894 const char *sec_start = (const char*)base() + section->sh_offset;
2895 size_t entry_index = ((const char*)symb - sec_start)/section->sh_entsize;
2897 // Get the corresponding version index entry
2898 const Elf_Versym *vs = getEntry<Elf_Versym>(dot_gnu_version_sec, entry_index);
2899 size_t version_index = vs->vs_index & ELF::VERSYM_VERSION;
2901 // Special markers for unversioned symbols.
2902 if (version_index == ELF::VER_NDX_LOCAL ||
2903 version_index == ELF::VER_NDX_GLOBAL) {
2906 return object_error::success;
2909 // Lookup this symbol in the version table
2911 if (version_index >= VersionMap.size() || VersionMap[version_index].isNull())
2912 report_fatal_error("Symbol has version index without corresponding "
2913 "define or reference entry");
2914 const VersionMapEntry &entry = VersionMap[version_index];
2916 // Get the version name string
2918 if (entry.isVerdef()) {
2919 // The first Verdaux entry holds the name.
2920 name_offset = entry.getVerdef()->getAux()->vda_name;
2922 name_offset = entry.getVernaux()->vna_name;
2924 Version = getString(dot_dynstr_sec, name_offset);
2927 if (entry.isVerdef()) {
2928 IsDefault = !(vs->vs_index & ELF::VERSYM_HIDDEN);
2933 return object_error::success;
2936 /// FIXME: Maybe we should have a base ElfObjectFile that is not a template
2937 /// and make these member functions?
2938 static inline error_code getELFRelocationAddend(const RelocationRef R,
2940 const ObjectFile *Obj = R.getObjectFile();
2941 DataRefImpl DRI = R.getRawDataRefImpl();
2942 // Little-endian 32-bit
2943 if (const ELF32LEObjectFile *ELFObj = dyn_cast<ELF32LEObjectFile>(Obj))
2944 return ELFObj->getRelocationAddend(DRI, Addend);
2946 // Big-endian 32-bit
2947 if (const ELF32BEObjectFile *ELFObj = dyn_cast<ELF32BEObjectFile>(Obj))
2948 return ELFObj->getRelocationAddend(DRI, Addend);
2950 // Little-endian 64-bit
2951 if (const ELF64LEObjectFile *ELFObj = dyn_cast<ELF64LEObjectFile>(Obj))
2952 return ELFObj->getRelocationAddend(DRI, Addend);
2954 // Big-endian 64-bit
2955 if (const ELF64BEObjectFile *ELFObj = dyn_cast<ELF64BEObjectFile>(Obj))
2956 return ELFObj->getRelocationAddend(DRI, Addend);
2958 llvm_unreachable("Object passed to getELFRelocationAddend() is not ELF");
2961 /// This is a generic interface for retrieving GNU symbol version
2962 /// information from an ELFObjectFile.
2963 static inline error_code GetELFSymbolVersion(const ObjectFile *Obj,
2964 const SymbolRef &Sym,
2967 // Little-endian 32-bit
2968 if (const ELF32LEObjectFile *ELFObj = dyn_cast<ELF32LEObjectFile>(Obj))
2969 return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
2971 // Big-endian 32-bit
2972 if (const ELF32BEObjectFile *ELFObj = dyn_cast<ELF32BEObjectFile>(Obj))
2973 return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
2975 // Little-endian 64-bit
2976 if (const ELF64LEObjectFile *ELFObj = dyn_cast<ELF64LEObjectFile>(Obj))
2977 return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
2979 // Big-endian 64-bit
2980 if (const ELF64BEObjectFile *ELFObj = dyn_cast<ELF64BEObjectFile>(Obj))
2981 return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
2983 llvm_unreachable("Object passed to GetELFSymbolVersion() is not ELF");
2986 /// This function returns the hash value for a symbol in the .dynsym section
2987 /// Name of the API remains consistent as specified in the libelf
2988 /// REF : http://www.sco.com/developers/gabi/latest/ch5.dynamic.html#hash
2989 static inline unsigned elf_hash(StringRef &symbolName) {
2991 for (unsigned i = 0, j = symbolName.size(); i < j; i++) {
2992 h = (h << 4) + symbolName[i];
2993 g = h & 0xf0000000L;