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 typedef SmallVector<const Elf_Shdr *, 2> Sections_t;
584 typedef DenseMap<unsigned, unsigned> IndexMap_t;
586 const Elf_Ehdr *Header;
587 const Elf_Shdr *SectionHeaderTable;
588 const Elf_Shdr *dot_shstrtab_sec; // Section header string table.
589 const Elf_Shdr *dot_strtab_sec; // Symbol header string table.
590 const Elf_Shdr *dot_dynstr_sec; // Dynamic symbol string table.
592 // SymbolTableSections[0] always points to the dynamic string table section
593 // header, or NULL if there is no dynamic string table.
594 Sections_t SymbolTableSections;
595 IndexMap_t SymbolTableSectionsIndexMap;
596 DenseMap<const Elf_Sym*, ELF::Elf64_Word> ExtendedSymbolTable;
598 const Elf_Shdr *dot_dynamic_sec; // .dynamic
599 const Elf_Shdr *dot_gnu_version_sec; // .gnu.version
600 const Elf_Shdr *dot_gnu_version_r_sec; // .gnu.version_r
601 const Elf_Shdr *dot_gnu_version_d_sec; // .gnu.version_d
603 // Pointer to SONAME entry in dynamic string table
604 // This is set the first time getLoadName is called.
605 mutable const char *dt_soname;
608 uint64_t getROffset(DataRefImpl Rel) const;
610 // Records for each version index the corresponding Verdef or Vernaux entry.
611 // This is filled the first time LoadVersionMap() is called.
612 class VersionMapEntry : public PointerIntPair<const void*, 1> {
614 // If the integer is 0, this is an Elf_Verdef*.
615 // If the integer is 1, this is an Elf_Vernaux*.
616 VersionMapEntry() : PointerIntPair<const void*, 1>(NULL, 0) { }
617 VersionMapEntry(const Elf_Verdef *verdef)
618 : PointerIntPair<const void*, 1>(verdef, 0) { }
619 VersionMapEntry(const Elf_Vernaux *vernaux)
620 : PointerIntPair<const void*, 1>(vernaux, 1) { }
621 bool isNull() const { return getPointer() == NULL; }
622 bool isVerdef() const { return !isNull() && getInt() == 0; }
623 bool isVernaux() const { return !isNull() && getInt() == 1; }
624 const Elf_Verdef *getVerdef() const {
625 return isVerdef() ? (const Elf_Verdef*)getPointer() : NULL;
627 const Elf_Vernaux *getVernaux() const {
628 return isVernaux() ? (const Elf_Vernaux*)getPointer() : NULL;
631 mutable SmallVector<VersionMapEntry, 16> VersionMap;
632 void LoadVersionDefs(const Elf_Shdr *sec) const;
633 void LoadVersionNeeds(const Elf_Shdr *ec) const;
634 void LoadVersionMap() const;
636 /// @brief Get the relocation section that contains \a Rel.
637 const Elf_Shdr *getRelSection(DataRefImpl Rel) const {
638 return getSection(Rel.d.a);
642 bool isRelocationHasAddend(DataRefImpl Rel) const;
644 const T *getEntry(uint16_t Section, uint32_t Entry) const;
646 const T *getEntry(const Elf_Shdr *Section, uint32_t Entry) const;
647 const Elf_Shdr *getSection(DataRefImpl index) const;
648 const Elf_Shdr *getSection(uint32_t index) const;
649 const Elf_Rel *getRel(DataRefImpl Rel) const;
650 const Elf_Rela *getRela(DataRefImpl Rela) const;
651 const char *getString(uint32_t section, uint32_t offset) const;
652 const char *getString(const Elf_Shdr *section, uint32_t offset) const;
653 error_code getSymbolVersion(const Elf_Shdr *section,
656 bool &IsDefault) const;
657 void VerifyStrTab(const Elf_Shdr *sh) const;
660 const Elf_Sym *getSymbol(DataRefImpl Symb) const; // FIXME: Should be private?
661 void validateSymbol(DataRefImpl Symb) const;
662 StringRef getRelocationTypeName(uint32_t Type) const;
665 error_code getSymbolName(const Elf_Shdr *section,
667 StringRef &Res) const;
668 error_code getSectionName(const Elf_Shdr *section,
669 StringRef &Res) const;
670 const Elf_Dyn *getDyn(DataRefImpl DynData) const;
671 error_code getSymbolVersion(SymbolRef Symb, StringRef &Version,
672 bool &IsDefault) const;
673 uint64_t getSymbolIndex(const Elf_Sym *sym) const;
674 error_code getRelocationAddend(DataRefImpl Rel, int64_t &Res) const;
676 virtual error_code getSymbolNext(DataRefImpl Symb, SymbolRef &Res) const;
677 virtual error_code getSymbolName(DataRefImpl Symb, StringRef &Res) const;
678 virtual error_code getSymbolFileOffset(DataRefImpl Symb, uint64_t &Res) const;
679 virtual error_code getSymbolAddress(DataRefImpl Symb, uint64_t &Res) const;
680 virtual error_code getSymbolAlignment(DataRefImpl Symb, uint32_t &Res) const;
681 virtual error_code getSymbolSize(DataRefImpl Symb, uint64_t &Res) const;
682 virtual error_code getSymbolNMTypeChar(DataRefImpl Symb, char &Res) const;
683 virtual error_code getSymbolFlags(DataRefImpl Symb, uint32_t &Res) const;
684 virtual error_code getSymbolType(DataRefImpl Symb,
685 SymbolRef::Type &Res) const;
686 virtual error_code getSymbolSection(DataRefImpl Symb,
687 section_iterator &Res) const;
688 virtual error_code getSymbolValue(DataRefImpl Symb, uint64_t &Val) const;
690 virtual error_code getLibraryNext(DataRefImpl Data, LibraryRef &Result) const;
691 virtual error_code getLibraryPath(DataRefImpl Data, StringRef &Res) const;
693 virtual error_code getSectionNext(DataRefImpl Sec, SectionRef &Res) const;
694 virtual error_code getSectionName(DataRefImpl Sec, StringRef &Res) const;
695 virtual error_code getSectionAddress(DataRefImpl Sec, uint64_t &Res) const;
696 virtual error_code getSectionSize(DataRefImpl Sec, uint64_t &Res) const;
697 virtual error_code getSectionContents(DataRefImpl Sec, StringRef &Res) const;
698 virtual error_code getSectionAlignment(DataRefImpl Sec, uint64_t &Res) const;
699 virtual error_code isSectionText(DataRefImpl Sec, bool &Res) const;
700 virtual error_code isSectionData(DataRefImpl Sec, bool &Res) const;
701 virtual error_code isSectionBSS(DataRefImpl Sec, bool &Res) const;
702 virtual error_code isSectionRequiredForExecution(DataRefImpl Sec,
704 virtual error_code isSectionVirtual(DataRefImpl Sec, bool &Res) const;
705 virtual error_code isSectionZeroInit(DataRefImpl Sec, bool &Res) const;
706 virtual error_code isSectionReadOnlyData(DataRefImpl Sec, bool &Res) const;
707 virtual error_code sectionContainsSymbol(DataRefImpl Sec, DataRefImpl Symb,
709 virtual relocation_iterator getSectionRelBegin(DataRefImpl Sec) const;
710 virtual relocation_iterator getSectionRelEnd(DataRefImpl Sec) const;
711 virtual section_iterator getRelocatedSection(DataRefImpl Sec) const;
713 virtual error_code getRelocationNext(DataRefImpl Rel,
714 RelocationRef &Res) const;
715 virtual error_code getRelocationAddress(DataRefImpl Rel,
716 uint64_t &Res) const;
717 virtual error_code getRelocationOffset(DataRefImpl Rel,
718 uint64_t &Res) const;
719 virtual symbol_iterator getRelocationSymbol(DataRefImpl Rel) const;
720 virtual error_code getRelocationType(DataRefImpl Rel,
721 uint64_t &Res) const;
722 virtual error_code getRelocationTypeName(DataRefImpl Rel,
723 SmallVectorImpl<char> &Result) const;
724 virtual error_code getRelocationValueString(DataRefImpl Rel,
725 SmallVectorImpl<char> &Result) const;
728 ELFObjectFile(MemoryBuffer *Object, error_code &ec);
730 bool isMips64EL() const {
731 return Header->e_machine == ELF::EM_MIPS &&
732 Header->getFileClass() == ELF::ELFCLASS64 &&
733 Header->getDataEncoding() == ELF::ELFDATA2LSB;
736 virtual symbol_iterator begin_symbols() const;
737 virtual symbol_iterator end_symbols() const;
739 virtual symbol_iterator begin_dynamic_symbols() const;
740 virtual symbol_iterator end_dynamic_symbols() const;
742 virtual section_iterator begin_sections() const;
743 virtual section_iterator end_sections() const;
745 virtual library_iterator begin_libraries_needed() const;
746 virtual library_iterator end_libraries_needed() const;
748 const Elf_Shdr *getDynamicSymbolTableSectionHeader() const {
749 return SymbolTableSections[0];
752 const Elf_Shdr *getDynamicStringTableSectionHeader() const {
753 return dot_dynstr_sec;
756 Elf_Dyn_iterator begin_dynamic_table() const;
757 /// \param NULLEnd use one past the first DT_NULL entry as the end instead of
758 /// the section size.
759 Elf_Dyn_iterator end_dynamic_table(bool NULLEnd = false) const;
761 Elf_Sym_iterator begin_elf_dynamic_symbols() const {
762 const Elf_Shdr *DynSymtab = SymbolTableSections[0];
764 return Elf_Sym_iterator(DynSymtab->sh_entsize,
765 (const char *)base() + DynSymtab->sh_offset);
766 return Elf_Sym_iterator(0, 0);
769 Elf_Sym_iterator end_elf_dynamic_symbols() const {
770 const Elf_Shdr *DynSymtab = SymbolTableSections[0];
772 return Elf_Sym_iterator(DynSymtab->sh_entsize, (const char *)base() +
773 DynSymtab->sh_offset + DynSymtab->sh_size);
774 return Elf_Sym_iterator(0, 0);
777 Elf_Rela_Iter beginELFRela(const Elf_Shdr *sec) const {
778 return Elf_Rela_Iter(sec->sh_entsize,
779 (const char *)(base() + sec->sh_offset));
782 Elf_Rela_Iter endELFRela(const Elf_Shdr *sec) const {
783 return Elf_Rela_Iter(sec->sh_entsize, (const char *)
784 (base() + sec->sh_offset + sec->sh_size));
787 Elf_Rel_Iter beginELFRel(const Elf_Shdr *sec) const {
788 return Elf_Rel_Iter(sec->sh_entsize,
789 (const char *)(base() + sec->sh_offset));
792 Elf_Rel_Iter endELFRel(const Elf_Shdr *sec) const {
793 return Elf_Rel_Iter(sec->sh_entsize, (const char *)
794 (base() + sec->sh_offset + sec->sh_size));
797 /// \brief Iterate over program header table.
798 typedef ELFEntityIterator<const Elf_Phdr> Elf_Phdr_Iter;
800 Elf_Phdr_Iter begin_program_headers() const {
801 return Elf_Phdr_Iter(Header->e_phentsize,
802 (const char*)base() + Header->e_phoff);
805 Elf_Phdr_Iter end_program_headers() const {
806 return Elf_Phdr_Iter(Header->e_phentsize,
807 (const char*)base() +
809 (Header->e_phnum * Header->e_phentsize));
812 virtual uint8_t getBytesInAddress() const;
813 virtual StringRef getFileFormatName() const;
814 virtual StringRef getObjectType() const { return "ELF"; }
815 virtual unsigned getArch() const;
816 virtual StringRef getLoadName() const;
817 virtual error_code getSectionContents(const Elf_Shdr *sec,
818 StringRef &Res) const;
820 uint64_t getNumSections() const;
821 uint64_t getStringTableIndex() const;
822 ELF::Elf64_Word getSymbolTableIndex(const Elf_Sym *symb) const;
823 const Elf_Ehdr *getElfHeader() const;
824 const Elf_Shdr *getSection(const Elf_Sym *symb) const;
825 const Elf_Shdr *getElfSection(section_iterator &It) const;
826 const Elf_Sym *getElfSymbol(symbol_iterator &It) const;
827 const Elf_Sym *getElfSymbol(uint32_t index) const;
829 // Methods for type inquiry through isa, cast, and dyn_cast
830 bool isDyldType() const { return isDyldELFObject; }
831 static inline bool classof(const Binary *v) {
832 return v->getType() == getELFType(ELFT::TargetEndianness == support::little,
837 // Use an alignment of 2 for the typedefs since that is the worst case for
838 // ELF files in archives.
839 typedef ELFObjectFile<ELFType<support::little, 2, false> > ELF32LEObjectFile;
840 typedef ELFObjectFile<ELFType<support::little, 2, true> > ELF64LEObjectFile;
841 typedef ELFObjectFile<ELFType<support::big, 2, false> > ELF32BEObjectFile;
842 typedef ELFObjectFile<ELFType<support::big, 2, true> > ELF64BEObjectFile;
844 // Iterate through the version definitions, and place each Elf_Verdef
845 // in the VersionMap according to its index.
847 void ELFObjectFile<ELFT>::LoadVersionDefs(const Elf_Shdr *sec) const {
848 unsigned vd_size = sec->sh_size; // Size of section in bytes
849 unsigned vd_count = sec->sh_info; // Number of Verdef entries
850 const char *sec_start = (const char*)base() + sec->sh_offset;
851 const char *sec_end = sec_start + vd_size;
852 // The first Verdef entry is at the start of the section.
853 const char *p = sec_start;
854 for (unsigned i = 0; i < vd_count; i++) {
855 if (p + sizeof(Elf_Verdef) > sec_end)
856 report_fatal_error("Section ended unexpectedly while scanning "
857 "version definitions.");
858 const Elf_Verdef *vd = reinterpret_cast<const Elf_Verdef *>(p);
859 if (vd->vd_version != ELF::VER_DEF_CURRENT)
860 report_fatal_error("Unexpected verdef version");
861 size_t index = vd->vd_ndx & ELF::VERSYM_VERSION;
862 if (index >= VersionMap.size())
863 VersionMap.resize(index+1);
864 VersionMap[index] = VersionMapEntry(vd);
869 // Iterate through the versions needed section, and place each Elf_Vernaux
870 // in the VersionMap according to its index.
872 void ELFObjectFile<ELFT>::LoadVersionNeeds(const Elf_Shdr *sec) const {
873 unsigned vn_size = sec->sh_size; // Size of section in bytes
874 unsigned vn_count = sec->sh_info; // Number of Verneed entries
875 const char *sec_start = (const char*)base() + sec->sh_offset;
876 const char *sec_end = sec_start + vn_size;
877 // The first Verneed entry is at the start of the section.
878 const char *p = sec_start;
879 for (unsigned i = 0; i < vn_count; i++) {
880 if (p + sizeof(Elf_Verneed) > sec_end)
881 report_fatal_error("Section ended unexpectedly while scanning "
882 "version needed records.");
883 const Elf_Verneed *vn = reinterpret_cast<const Elf_Verneed *>(p);
884 if (vn->vn_version != ELF::VER_NEED_CURRENT)
885 report_fatal_error("Unexpected verneed version");
886 // Iterate through the Vernaux entries
887 const char *paux = p + vn->vn_aux;
888 for (unsigned j = 0; j < vn->vn_cnt; j++) {
889 if (paux + sizeof(Elf_Vernaux) > sec_end)
890 report_fatal_error("Section ended unexpected while scanning auxiliary "
891 "version needed records.");
892 const Elf_Vernaux *vna = reinterpret_cast<const Elf_Vernaux *>(paux);
893 size_t index = vna->vna_other & ELF::VERSYM_VERSION;
894 if (index >= VersionMap.size())
895 VersionMap.resize(index+1);
896 VersionMap[index] = VersionMapEntry(vna);
897 paux += vna->vna_next;
904 void ELFObjectFile<ELFT>::LoadVersionMap() const {
905 // If there is no dynamic symtab or version table, there is nothing to do.
906 if (SymbolTableSections[0] == NULL || dot_gnu_version_sec == NULL)
909 // Has the VersionMap already been loaded?
910 if (VersionMap.size() > 0)
913 // The first two version indexes are reserved.
914 // Index 0 is LOCAL, index 1 is GLOBAL.
915 VersionMap.push_back(VersionMapEntry());
916 VersionMap.push_back(VersionMapEntry());
918 if (dot_gnu_version_d_sec)
919 LoadVersionDefs(dot_gnu_version_d_sec);
921 if (dot_gnu_version_r_sec)
922 LoadVersionNeeds(dot_gnu_version_r_sec);
926 void ELFObjectFile<ELFT>::validateSymbol(DataRefImpl Symb) const {
928 const Elf_Sym *symb = getSymbol(Symb);
929 const Elf_Shdr *SymbolTableSection = SymbolTableSections[Symb.d.b];
930 // FIXME: We really need to do proper error handling in the case of an invalid
931 // input file. Because we don't use exceptions, I think we'll just pass
932 // an error object around.
934 && SymbolTableSection
935 && symb >= (const Elf_Sym*)(base()
936 + SymbolTableSection->sh_offset)
937 && symb < (const Elf_Sym*)(base()
938 + SymbolTableSection->sh_offset
939 + SymbolTableSection->sh_size)))
940 // FIXME: Proper error handling.
941 report_fatal_error("Symb must point to a valid symbol!");
946 error_code ELFObjectFile<ELFT>::getSymbolNext(DataRefImpl Symb,
947 SymbolRef &Result) const {
948 validateSymbol(Symb);
949 const Elf_Shdr *SymbolTableSection = SymbolTableSections[Symb.d.b];
952 // Check to see if we are at the end of this symbol table.
953 if (Symb.d.a >= SymbolTableSection->getEntityCount()) {
954 // We are at the end. If there are other symbol tables, jump to them.
955 // If the symbol table is .dynsym, we are iterating dynamic symbols,
956 // and there is only one table of these.
959 Symb.d.a = 1; // The 0th symbol in ELF is fake.
961 // Otherwise return the terminator.
962 if (Symb.d.b == 0 || Symb.d.b >= SymbolTableSections.size()) {
963 Symb.d.a = std::numeric_limits<uint32_t>::max();
964 Symb.d.b = std::numeric_limits<uint32_t>::max();
968 Result = SymbolRef(Symb, this);
969 return object_error::success;
973 error_code ELFObjectFile<ELFT>::getSymbolName(DataRefImpl Symb,
974 StringRef &Result) const {
975 validateSymbol(Symb);
976 const Elf_Sym *symb = getSymbol(Symb);
977 return getSymbolName(SymbolTableSections[Symb.d.b], symb, Result);
981 error_code ELFObjectFile<ELFT>::getSymbolVersion(SymbolRef SymRef,
983 bool &IsDefault) const {
984 DataRefImpl Symb = SymRef.getRawDataRefImpl();
985 validateSymbol(Symb);
986 const Elf_Sym *symb = getSymbol(Symb);
987 return getSymbolVersion(SymbolTableSections[Symb.d.b], symb,
992 ELF::Elf64_Word ELFObjectFile<ELFT>
993 ::getSymbolTableIndex(const Elf_Sym *symb) const {
994 if (symb->st_shndx == ELF::SHN_XINDEX)
995 return ExtendedSymbolTable.lookup(symb);
996 return symb->st_shndx;
1000 const typename ELFObjectFile<ELFT>::Elf_Shdr *
1001 ELFObjectFile<ELFT>::getSection(const Elf_Sym *symb) const {
1002 if (symb->st_shndx == ELF::SHN_XINDEX)
1003 return getSection(ExtendedSymbolTable.lookup(symb));
1004 if (symb->st_shndx >= ELF::SHN_LORESERVE)
1006 return getSection(symb->st_shndx);
1009 template<class ELFT>
1010 const typename ELFObjectFile<ELFT>::Elf_Ehdr *
1011 ELFObjectFile<ELFT>::getElfHeader() const {
1015 template<class ELFT>
1016 const typename ELFObjectFile<ELFT>::Elf_Shdr *
1017 ELFObjectFile<ELFT>::getElfSection(section_iterator &It) const {
1018 llvm::object::DataRefImpl ShdrRef = It->getRawDataRefImpl();
1019 return reinterpret_cast<const Elf_Shdr *>(ShdrRef.p);
1022 template<class ELFT>
1023 const typename ELFObjectFile<ELFT>::Elf_Sym *
1024 ELFObjectFile<ELFT>::getElfSymbol(symbol_iterator &It) const {
1025 return getSymbol(It->getRawDataRefImpl());
1028 template<class ELFT>
1029 const typename ELFObjectFile<ELFT>::Elf_Sym *
1030 ELFObjectFile<ELFT>::getElfSymbol(uint32_t index) const {
1031 DataRefImpl SymbolData;
1032 SymbolData.d.a = index;
1034 return getSymbol(SymbolData);
1037 template<class ELFT>
1038 error_code ELFObjectFile<ELFT>::getSymbolFileOffset(DataRefImpl Symb,
1039 uint64_t &Result) const {
1040 validateSymbol(Symb);
1041 const Elf_Sym *symb = getSymbol(Symb);
1042 const Elf_Shdr *Section;
1043 switch (getSymbolTableIndex(symb)) {
1044 case ELF::SHN_COMMON:
1045 // Unintialized symbols have no offset in the object file
1046 case ELF::SHN_UNDEF:
1047 Result = UnknownAddressOrSize;
1048 return object_error::success;
1050 Result = symb->st_value;
1051 return object_error::success;
1052 default: Section = getSection(symb);
1055 switch (symb->getType()) {
1056 case ELF::STT_SECTION:
1057 Result = Section ? Section->sh_offset : UnknownAddressOrSize;
1058 return object_error::success;
1060 case ELF::STT_OBJECT:
1061 case ELF::STT_NOTYPE:
1062 Result = symb->st_value +
1063 (Section ? Section->sh_offset : 0);
1064 return object_error::success;
1066 Result = UnknownAddressOrSize;
1067 return object_error::success;
1071 template<class ELFT>
1072 error_code ELFObjectFile<ELFT>::getSymbolAddress(DataRefImpl Symb,
1073 uint64_t &Result) const {
1074 validateSymbol(Symb);
1075 const Elf_Sym *symb = getSymbol(Symb);
1076 const Elf_Shdr *Section;
1077 switch (getSymbolTableIndex(symb)) {
1078 case ELF::SHN_COMMON:
1079 case ELF::SHN_UNDEF:
1080 Result = UnknownAddressOrSize;
1081 return object_error::success;
1083 Result = symb->st_value;
1084 return object_error::success;
1085 default: Section = getSection(symb);
1088 switch (symb->getType()) {
1089 case ELF::STT_SECTION:
1090 Result = Section ? Section->sh_addr : UnknownAddressOrSize;
1091 return object_error::success;
1093 case ELF::STT_OBJECT:
1094 case ELF::STT_NOTYPE:
1096 switch(Header->e_type) {
1099 IsRelocatable = false;
1102 IsRelocatable = true;
1104 Result = symb->st_value;
1106 // Clear the ARM/Thumb indicator flag.
1107 if (Header->e_machine == ELF::EM_ARM)
1110 if (IsRelocatable && Section != 0)
1111 Result += Section->sh_addr;
1112 return object_error::success;
1114 Result = UnknownAddressOrSize;
1115 return object_error::success;
1119 template<class ELFT>
1120 error_code ELFObjectFile<ELFT>::getSymbolAlignment(DataRefImpl Symb,
1121 uint32_t &Res) const {
1123 getSymbolFlags(Symb, flags);
1124 if (flags & SymbolRef::SF_Common) {
1126 getSymbolValue(Symb, Value);
1131 return object_error::success;
1134 template<class ELFT>
1135 error_code ELFObjectFile<ELFT>::getSymbolSize(DataRefImpl Symb,
1136 uint64_t &Result) const {
1137 validateSymbol(Symb);
1138 const Elf_Sym *symb = getSymbol(Symb);
1139 if (symb->st_size == 0)
1140 Result = UnknownAddressOrSize;
1141 Result = symb->st_size;
1142 return object_error::success;
1145 template<class ELFT>
1146 error_code ELFObjectFile<ELFT>::getSymbolNMTypeChar(DataRefImpl Symb,
1147 char &Result) const {
1148 validateSymbol(Symb);
1149 const Elf_Sym *symb = getSymbol(Symb);
1150 const Elf_Shdr *Section = getSection(symb);
1155 switch (Section->sh_type) {
1156 case ELF::SHT_PROGBITS:
1157 case ELF::SHT_DYNAMIC:
1158 switch (Section->sh_flags) {
1159 case (ELF::SHF_ALLOC | ELF::SHF_EXECINSTR):
1161 case (ELF::SHF_ALLOC | ELF::SHF_WRITE):
1163 case ELF::SHF_ALLOC:
1164 case (ELF::SHF_ALLOC | ELF::SHF_MERGE):
1165 case (ELF::SHF_ALLOC | ELF::SHF_MERGE | ELF::SHF_STRINGS):
1169 case ELF::SHT_NOBITS: ret = 'b';
1173 switch (getSymbolTableIndex(symb)) {
1174 case ELF::SHN_UNDEF:
1178 case ELF::SHN_ABS: ret = 'a'; break;
1179 case ELF::SHN_COMMON: ret = 'c'; break;
1182 switch (symb->getBinding()) {
1183 case ELF::STB_GLOBAL: ret = ::toupper(ret); break;
1185 if (getSymbolTableIndex(symb) == ELF::SHN_UNDEF)
1188 if (symb->getType() == ELF::STT_OBJECT)
1194 if (ret == '?' && symb->getType() == ELF::STT_SECTION) {
1196 if (error_code ec = getSymbolName(Symb, name))
1198 Result = StringSwitch<char>(name)
1199 .StartsWith(".debug", 'N')
1200 .StartsWith(".note", 'n')
1202 return object_error::success;
1206 return object_error::success;
1209 template<class ELFT>
1210 error_code ELFObjectFile<ELFT>::getSymbolType(DataRefImpl Symb,
1211 SymbolRef::Type &Result) const {
1212 validateSymbol(Symb);
1213 const Elf_Sym *symb = getSymbol(Symb);
1215 switch (symb->getType()) {
1216 case ELF::STT_NOTYPE:
1217 Result = SymbolRef::ST_Unknown;
1219 case ELF::STT_SECTION:
1220 Result = SymbolRef::ST_Debug;
1223 Result = SymbolRef::ST_File;
1226 Result = SymbolRef::ST_Function;
1228 case ELF::STT_OBJECT:
1229 case ELF::STT_COMMON:
1231 Result = SymbolRef::ST_Data;
1234 Result = SymbolRef::ST_Other;
1237 return object_error::success;
1240 template<class ELFT>
1241 error_code ELFObjectFile<ELFT>::getSymbolFlags(DataRefImpl Symb,
1242 uint32_t &Result) const {
1243 validateSymbol(Symb);
1244 const Elf_Sym *symb = getSymbol(Symb);
1246 Result = SymbolRef::SF_None;
1248 if (symb->getBinding() != ELF::STB_LOCAL)
1249 Result |= SymbolRef::SF_Global;
1251 if (symb->getBinding() == ELF::STB_WEAK)
1252 Result |= SymbolRef::SF_Weak;
1254 if (symb->st_shndx == ELF::SHN_ABS)
1255 Result |= SymbolRef::SF_Absolute;
1257 if (symb->getType() == ELF::STT_FILE ||
1258 symb->getType() == ELF::STT_SECTION)
1259 Result |= SymbolRef::SF_FormatSpecific;
1261 if (getSymbolTableIndex(symb) == ELF::SHN_UNDEF)
1262 Result |= SymbolRef::SF_Undefined;
1264 if (symb->getType() == ELF::STT_COMMON ||
1265 getSymbolTableIndex(symb) == ELF::SHN_COMMON)
1266 Result |= SymbolRef::SF_Common;
1268 if (symb->getType() == ELF::STT_TLS)
1269 Result |= SymbolRef::SF_ThreadLocal;
1271 return object_error::success;
1274 template<class ELFT>
1275 error_code ELFObjectFile<ELFT>::getSymbolSection(DataRefImpl Symb,
1276 section_iterator &Res) const {
1277 validateSymbol(Symb);
1278 const Elf_Sym *symb = getSymbol(Symb);
1279 const Elf_Shdr *sec = getSection(symb);
1281 Res = end_sections();
1284 Sec.p = reinterpret_cast<intptr_t>(sec);
1285 Res = section_iterator(SectionRef(Sec, this));
1287 return object_error::success;
1290 template<class ELFT>
1291 error_code ELFObjectFile<ELFT>::getSymbolValue(DataRefImpl Symb,
1292 uint64_t &Val) const {
1293 validateSymbol(Symb);
1294 const Elf_Sym *symb = getSymbol(Symb);
1295 Val = symb->st_value;
1296 return object_error::success;
1299 template<class ELFT>
1300 error_code ELFObjectFile<ELFT>::getSectionNext(DataRefImpl Sec,
1301 SectionRef &Result) const {
1302 const uint8_t *sec = reinterpret_cast<const uint8_t *>(Sec.p);
1303 sec += Header->e_shentsize;
1304 Sec.p = reinterpret_cast<intptr_t>(sec);
1305 Result = SectionRef(Sec, this);
1306 return object_error::success;
1309 template<class ELFT>
1310 error_code ELFObjectFile<ELFT>::getSectionName(DataRefImpl Sec,
1311 StringRef &Result) const {
1312 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1313 Result = StringRef(getString(dot_shstrtab_sec, sec->sh_name));
1314 return object_error::success;
1317 template<class ELFT>
1318 error_code ELFObjectFile<ELFT>::getSectionAddress(DataRefImpl Sec,
1319 uint64_t &Result) const {
1320 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1321 Result = sec->sh_addr;
1322 return object_error::success;
1325 template<class ELFT>
1326 error_code ELFObjectFile<ELFT>::getSectionSize(DataRefImpl Sec,
1327 uint64_t &Result) const {
1328 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1329 Result = sec->sh_size;
1330 return object_error::success;
1333 template<class ELFT>
1334 error_code ELFObjectFile<ELFT>::getSectionContents(DataRefImpl Sec,
1335 StringRef &Result) const {
1336 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1337 const char *start = (const char*)base() + sec->sh_offset;
1338 Result = StringRef(start, sec->sh_size);
1339 return object_error::success;
1342 template<class ELFT>
1343 error_code ELFObjectFile<ELFT>::getSectionContents(const Elf_Shdr *Sec,
1344 StringRef &Result) const {
1345 const char *start = (const char*)base() + Sec->sh_offset;
1346 Result = StringRef(start, Sec->sh_size);
1347 return object_error::success;
1350 template<class ELFT>
1351 error_code ELFObjectFile<ELFT>::getSectionAlignment(DataRefImpl Sec,
1352 uint64_t &Result) const {
1353 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1354 Result = sec->sh_addralign;
1355 return object_error::success;
1358 template<class ELFT>
1359 error_code ELFObjectFile<ELFT>::isSectionText(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_EXECINSTR)
1366 return object_error::success;
1369 template<class ELFT>
1370 error_code ELFObjectFile<ELFT>::isSectionData(DataRefImpl Sec,
1371 bool &Result) const {
1372 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1373 if (sec->sh_flags & (ELF::SHF_ALLOC | ELF::SHF_WRITE)
1374 && sec->sh_type == ELF::SHT_PROGBITS)
1378 return object_error::success;
1381 template<class ELFT>
1382 error_code ELFObjectFile<ELFT>::isSectionBSS(DataRefImpl Sec,
1383 bool &Result) const {
1384 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1385 if (sec->sh_flags & (ELF::SHF_ALLOC | ELF::SHF_WRITE)
1386 && sec->sh_type == ELF::SHT_NOBITS)
1390 return object_error::success;
1393 template<class ELFT>
1394 error_code ELFObjectFile<ELFT>::isSectionRequiredForExecution(
1395 DataRefImpl Sec, bool &Result) const {
1396 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1397 if (sec->sh_flags & ELF::SHF_ALLOC)
1401 return object_error::success;
1404 template<class ELFT>
1405 error_code ELFObjectFile<ELFT>::isSectionVirtual(DataRefImpl Sec,
1406 bool &Result) const {
1407 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1408 if (sec->sh_type == ELF::SHT_NOBITS)
1412 return object_error::success;
1415 template<class ELFT>
1416 error_code ELFObjectFile<ELFT>::isSectionZeroInit(DataRefImpl Sec,
1417 bool &Result) const {
1418 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1419 // For ELF, all zero-init sections are virtual (that is, they occupy no space
1420 // in the object image) and vice versa.
1421 Result = sec->sh_type == ELF::SHT_NOBITS;
1422 return object_error::success;
1425 template<class ELFT>
1426 error_code ELFObjectFile<ELFT>::isSectionReadOnlyData(DataRefImpl Sec,
1427 bool &Result) const {
1428 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1429 if (sec->sh_flags & ELF::SHF_WRITE || sec->sh_flags & ELF::SHF_EXECINSTR)
1433 return object_error::success;
1436 template<class ELFT>
1437 error_code ELFObjectFile<ELFT>::sectionContainsSymbol(DataRefImpl Sec,
1439 bool &Result) const {
1440 validateSymbol(Symb);
1442 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1443 const Elf_Sym *symb = getSymbol(Symb);
1445 unsigned shndx = symb->st_shndx;
1446 bool Reserved = shndx >= ELF::SHN_LORESERVE
1447 && shndx <= ELF::SHN_HIRESERVE;
1449 Result = !Reserved && (sec == getSection(symb->st_shndx));
1450 return object_error::success;
1453 template<class ELFT>
1455 ELFObjectFile<ELFT>::getSectionRelBegin(DataRefImpl Sec) const {
1456 DataRefImpl RelData;
1457 uintptr_t SHT = reinterpret_cast<uintptr_t>(SectionHeaderTable);
1458 RelData.d.a = (Sec.p - SHT) / Header->e_shentsize;
1460 return relocation_iterator(RelocationRef(RelData, this));
1463 template<class ELFT>
1465 ELFObjectFile<ELFT>::getSectionRelEnd(DataRefImpl Sec) const {
1466 DataRefImpl RelData;
1467 uintptr_t SHT = reinterpret_cast<uintptr_t>(SectionHeaderTable);
1468 const Elf_Shdr *S = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1469 RelData.d.a = (Sec.p - SHT) / Header->e_shentsize;
1470 if (S->sh_type != ELF::SHT_RELA && S->sh_type != ELF::SHT_REL)
1473 RelData.d.b = S->sh_size / S->sh_entsize;
1475 return relocation_iterator(RelocationRef(RelData, this));
1478 template <class ELFT>
1480 ELFObjectFile<ELFT>::getRelocatedSection(DataRefImpl Sec) const {
1481 if (Header->e_type != ELF::ET_REL)
1482 return end_sections();
1484 const Elf_Shdr *S = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1485 unsigned sh_type = S->sh_type;
1486 if (sh_type != ELF::SHT_RELA && sh_type != ELF::SHT_REL)
1487 return end_sections();
1489 assert(S->sh_info != 0);
1490 const Elf_Shdr *R = getSection(S->sh_info);
1492 D.p = reinterpret_cast<uintptr_t>(R);
1493 return section_iterator(SectionRef(D, this));
1497 template<class ELFT>
1498 error_code ELFObjectFile<ELFT>::getRelocationNext(DataRefImpl Rel,
1499 RelocationRef &Result) const {
1501 Result = RelocationRef(Rel, this);
1502 return object_error::success;
1505 template <class ELFT>
1507 ELFObjectFile<ELFT>::getRelocationSymbol(DataRefImpl Rel) const {
1509 const Elf_Shdr *sec = getRelSection(Rel);
1510 switch (sec->sh_type) {
1512 report_fatal_error("Invalid section type in Rel!");
1513 case ELF::SHT_REL : {
1514 symbolIdx = getRel(Rel)->getSymbol(isMips64EL());
1517 case ELF::SHT_RELA : {
1518 symbolIdx = getRela(Rel)->getSymbol(isMips64EL());
1523 return end_symbols();
1525 DataRefImpl SymbolData;
1526 IndexMap_t::const_iterator it =
1527 SymbolTableSectionsIndexMap.find(sec->sh_link);
1528 if (it == SymbolTableSectionsIndexMap.end())
1529 report_fatal_error("Relocation symbol table not found!");
1530 SymbolData.d.a = symbolIdx;
1531 SymbolData.d.b = it->second;
1532 return symbol_iterator(SymbolRef(SymbolData, this));
1535 template<class ELFT>
1536 error_code ELFObjectFile<ELFT>::getRelocationAddress(DataRefImpl Rel,
1537 uint64_t &Result) const {
1538 assert((Header->e_type == ELF::ET_EXEC || Header->e_type == ELF::ET_DYN) &&
1539 "Only executable and shared objects files have addresses");
1540 Result = getROffset(Rel);
1541 return object_error::success;
1544 template<class ELFT>
1545 error_code ELFObjectFile<ELFT>::getRelocationOffset(DataRefImpl Rel,
1546 uint64_t &Result) const {
1547 assert(Header->e_type == ELF::ET_REL &&
1548 "Only relocatable object files have relocation offsets");
1549 Result = getROffset(Rel);
1550 return object_error::success;
1553 template<class ELFT>
1554 uint64_t ELFObjectFile<ELFT>::getROffset(DataRefImpl Rel) const {
1555 const Elf_Shdr *sec = getRelSection(Rel);
1556 switch (sec->sh_type) {
1558 report_fatal_error("Invalid section type in Rel!");
1560 return getRel(Rel)->r_offset;
1562 return getRela(Rel)->r_offset;
1566 template<class ELFT>
1567 error_code ELFObjectFile<ELFT>::getRelocationType(DataRefImpl Rel,
1568 uint64_t &Result) const {
1569 const Elf_Shdr *sec = getRelSection(Rel);
1570 switch (sec->sh_type) {
1572 report_fatal_error("Invalid section type in Rel!");
1573 case ELF::SHT_REL : {
1574 Result = getRel(Rel)->getType(isMips64EL());
1577 case ELF::SHT_RELA : {
1578 Result = getRela(Rel)->getType(isMips64EL());
1582 return object_error::success;
1585 #define LLVM_ELF_SWITCH_RELOC_TYPE_NAME(enum) \
1586 case ELF::enum: Res = #enum; break;
1588 template<class ELFT>
1589 StringRef ELFObjectFile<ELFT>::getRelocationTypeName(uint32_t Type) const {
1590 StringRef Res = "Unknown";
1591 switch (Header->e_machine) {
1592 case ELF::EM_X86_64:
1594 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_NONE);
1595 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_64);
1596 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC32);
1597 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOT32);
1598 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PLT32);
1599 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_COPY);
1600 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GLOB_DAT);
1601 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_JUMP_SLOT);
1602 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_RELATIVE);
1603 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPCREL);
1604 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_32);
1605 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_32S);
1606 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_16);
1607 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC16);
1608 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_8);
1609 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC8);
1610 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_DTPMOD64);
1611 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_DTPOFF64);
1612 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TPOFF64);
1613 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSGD);
1614 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSLD);
1615 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_DTPOFF32);
1616 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTTPOFF);
1617 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TPOFF32);
1618 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC64);
1619 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTOFF64);
1620 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPC32);
1621 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOT64);
1622 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPCREL64);
1623 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPC64);
1624 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPLT64);
1625 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PLTOFF64);
1626 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_SIZE32);
1627 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_SIZE64);
1628 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPC32_TLSDESC);
1629 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSDESC_CALL);
1630 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSDESC);
1631 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_IRELATIVE);
1637 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_NONE);
1638 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_32);
1639 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PC32);
1640 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GOT32);
1641 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PLT32);
1642 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_COPY);
1643 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GLOB_DAT);
1644 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_JUMP_SLOT);
1645 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_RELATIVE);
1646 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GOTOFF);
1647 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GOTPC);
1648 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_32PLT);
1649 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_TPOFF);
1650 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_IE);
1651 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GOTIE);
1652 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LE);
1653 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD);
1654 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM);
1655 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_16);
1656 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PC16);
1657 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_8);
1658 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PC8);
1659 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_32);
1660 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_PUSH);
1661 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_CALL);
1662 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_POP);
1663 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_32);
1664 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_PUSH);
1665 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_CALL);
1666 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_POP);
1667 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDO_32);
1668 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_IE_32);
1669 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LE_32);
1670 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DTPMOD32);
1671 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DTPOFF32);
1672 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_TPOFF32);
1673 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GOTDESC);
1674 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DESC_CALL);
1675 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DESC);
1676 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_IRELATIVE);
1682 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_NONE);
1683 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_16);
1684 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_32);
1685 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_REL32);
1686 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_26);
1687 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_HI16);
1688 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_LO16);
1689 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GPREL16);
1690 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_LITERAL);
1691 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GOT16);
1692 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_PC16);
1693 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_CALL16);
1694 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GPREL32);
1695 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_SHIFT5);
1696 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_SHIFT6);
1697 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_64);
1698 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GOT_DISP);
1699 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GOT_PAGE);
1700 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GOT_OFST);
1701 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GOT_HI16);
1702 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GOT_LO16);
1703 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_SUB);
1704 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_INSERT_A);
1705 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_INSERT_B);
1706 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_DELETE);
1707 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_HIGHER);
1708 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_HIGHEST);
1709 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_CALL_HI16);
1710 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_CALL_LO16);
1711 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_SCN_DISP);
1712 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_REL16);
1713 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_ADD_IMMEDIATE);
1714 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_PJUMP);
1715 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_RELGOT);
1716 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_JALR);
1717 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_DTPMOD32);
1718 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_DTPREL32);
1719 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_DTPMOD64);
1720 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_DTPREL64);
1721 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_GD);
1722 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_LDM);
1723 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_DTPREL_HI16);
1724 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_DTPREL_LO16);
1725 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_GOTTPREL);
1726 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_TPREL32);
1727 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_TPREL64);
1728 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_TPREL_HI16);
1729 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_TPREL_LO16);
1730 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GLOB_DAT);
1731 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_COPY);
1732 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_JUMP_SLOT);
1733 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_NUM);
1737 case ELF::EM_AARCH64:
1739 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_NONE);
1740 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_ABS64);
1741 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_ABS32);
1742 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_ABS16);
1743 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_PREL64);
1744 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_PREL32);
1745 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_PREL16);
1746 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_UABS_G0);
1747 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_UABS_G0_NC);
1748 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_UABS_G1);
1749 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_UABS_G1_NC);
1750 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_UABS_G2);
1751 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_UABS_G2_NC);
1752 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_UABS_G3);
1753 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_SABS_G0);
1754 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_SABS_G1);
1755 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_SABS_G2);
1756 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_LD_PREL_LO19);
1757 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_ADR_PREL_LO21);
1758 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_ADR_PREL_PG_HI21);
1759 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_ADD_ABS_LO12_NC);
1760 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_LDST8_ABS_LO12_NC);
1761 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TSTBR14);
1762 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_CONDBR19);
1763 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_JUMP26);
1764 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_CALL26);
1765 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_LDST16_ABS_LO12_NC);
1766 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_LDST32_ABS_LO12_NC);
1767 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_LDST64_ABS_LO12_NC);
1768 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_LDST128_ABS_LO12_NC);
1769 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_ADR_GOT_PAGE);
1770 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_LD64_GOT_LO12_NC);
1771 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_MOVW_DTPREL_G2);
1772 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_MOVW_DTPREL_G1);
1773 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_MOVW_DTPREL_G1_NC);
1774 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_MOVW_DTPREL_G0);
1775 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_MOVW_DTPREL_G0_NC);
1776 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_ADD_DTPREL_HI12);
1777 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_ADD_DTPREL_LO12);
1778 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_ADD_DTPREL_LO12_NC);
1779 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_LDST8_DTPREL_LO12);
1780 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_LDST8_DTPREL_LO12_NC);
1781 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_LDST16_DTPREL_LO12);
1782 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_LDST16_DTPREL_LO12_NC);
1783 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_LDST32_DTPREL_LO12);
1784 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_LDST32_DTPREL_LO12_NC);
1785 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_LDST64_DTPREL_LO12);
1786 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_LDST64_DTPREL_LO12_NC);
1787 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSIE_MOVW_GOTTPREL_G1);
1788 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC);
1789 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21);
1790 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC);
1791 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSIE_LD_GOTTPREL_PREL19);
1792 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_MOVW_TPREL_G2);
1793 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_MOVW_TPREL_G1);
1794 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_MOVW_TPREL_G1_NC);
1795 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_MOVW_TPREL_G0);
1796 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_MOVW_TPREL_G0_NC);
1797 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_ADD_TPREL_HI12);
1798 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_ADD_TPREL_LO12);
1799 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_ADD_TPREL_LO12_NC);
1800 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_LDST8_TPREL_LO12);
1801 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_LDST8_TPREL_LO12_NC);
1802 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_LDST16_TPREL_LO12);
1803 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_LDST16_TPREL_LO12_NC);
1804 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_LDST32_TPREL_LO12);
1805 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_LDST32_TPREL_LO12_NC);
1806 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_LDST64_TPREL_LO12);
1807 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_LDST64_TPREL_LO12_NC);
1808 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSDESC_ADR_PAGE);
1809 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSDESC_LD64_LO12_NC);
1810 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSDESC_ADD_LO12_NC);
1811 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSDESC_CALL);
1817 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_NONE);
1818 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PC24);
1819 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS32);
1820 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_REL32);
1821 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_PC_G0);
1822 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS16);
1823 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS12);
1824 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_ABS5);
1825 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS8);
1826 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_SBREL32);
1827 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_CALL);
1828 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_PC8);
1829 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_BREL_ADJ);
1830 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_DESC);
1831 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_SWI8);
1832 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_XPC25);
1833 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_XPC22);
1834 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_DTPMOD32);
1835 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_DTPOFF32);
1836 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_TPOFF32);
1837 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_COPY);
1838 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GLOB_DAT);
1839 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_JUMP_SLOT);
1840 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_RELATIVE);
1841 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOTOFF32);
1842 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_BASE_PREL);
1843 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOT_BREL);
1844 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PLT32);
1845 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_CALL);
1846 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_JUMP24);
1847 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP24);
1848 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_BASE_ABS);
1849 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PCREL_7_0);
1850 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PCREL_15_8);
1851 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PCREL_23_15);
1852 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_SBREL_11_0_NC);
1853 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SBREL_19_12_NC);
1854 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SBREL_27_20_CK);
1855 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TARGET1);
1856 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_SBREL31);
1857 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_V4BX);
1858 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TARGET2);
1859 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PREL31);
1860 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVW_ABS_NC);
1861 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVT_ABS);
1862 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVW_PREL_NC);
1863 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVT_PREL);
1864 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVW_ABS_NC);
1865 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVT_ABS);
1866 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVW_PREL_NC);
1867 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVT_PREL);
1868 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP19);
1869 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP6);
1870 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_ALU_PREL_11_0);
1871 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_PC12);
1872 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS32_NOI);
1873 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_REL32_NOI);
1874 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G0_NC);
1875 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G0);
1876 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G1_NC);
1877 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G1);
1878 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G2);
1879 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_PC_G1);
1880 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_PC_G2);
1881 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_PC_G0);
1882 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_PC_G1);
1883 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_PC_G2);
1884 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_PC_G0);
1885 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_PC_G1);
1886 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_PC_G2);
1887 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G0_NC);
1888 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G0);
1889 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G1_NC);
1890 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G1);
1891 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G2);
1892 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_SB_G0);
1893 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_SB_G1);
1894 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_SB_G2);
1895 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_SB_G0);
1896 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_SB_G1);
1897 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_SB_G2);
1898 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_SB_G0);
1899 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_SB_G1);
1900 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_SB_G2);
1901 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVW_BREL_NC);
1902 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVT_BREL);
1903 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVW_BREL);
1904 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVW_BREL_NC);
1905 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVT_BREL);
1906 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVW_BREL);
1907 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_GOTDESC);
1908 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_CALL);
1909 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_DESCSEQ);
1910 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_TLS_CALL);
1911 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PLT32_ABS);
1912 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOT_ABS);
1913 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOT_PREL);
1914 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOT_BREL12);
1915 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOTOFF12);
1916 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOTRELAX);
1917 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GNU_VTENTRY);
1918 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GNU_VTINHERIT);
1919 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP11);
1920 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP8);
1921 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_GD32);
1922 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LDM32);
1923 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LDO32);
1924 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_IE32);
1925 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LE32);
1926 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LDO12);
1927 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LE12);
1928 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_IE12GP);
1929 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_0);
1930 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_1);
1931 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_2);
1932 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_3);
1933 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_4);
1934 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_5);
1935 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_6);
1936 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_7);
1937 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_8);
1938 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_9);
1939 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_10);
1940 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_11);
1941 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_12);
1942 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_13);
1943 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_14);
1944 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_15);
1945 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ME_TOO);
1946 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_TLS_DESCSEQ16);
1947 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_TLS_DESCSEQ32);
1951 case ELF::EM_HEXAGON:
1953 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_NONE);
1954 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B22_PCREL);
1955 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B15_PCREL);
1956 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B7_PCREL);
1957 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_LO16);
1958 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_HI16);
1959 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_32);
1960 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_16);
1961 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_8);
1962 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GPREL16_0);
1963 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GPREL16_1);
1964 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GPREL16_2);
1965 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GPREL16_3);
1966 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_HL16);
1967 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B13_PCREL);
1968 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B9_PCREL);
1969 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B32_PCREL_X);
1970 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_32_6_X);
1971 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B22_PCREL_X);
1972 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B15_PCREL_X);
1973 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B13_PCREL_X);
1974 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B9_PCREL_X);
1975 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B7_PCREL_X);
1976 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_16_X);
1977 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_12_X);
1978 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_11_X);
1979 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_10_X);
1980 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_9_X);
1981 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_8_X);
1982 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_7_X);
1983 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_6_X);
1984 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_32_PCREL);
1985 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_COPY);
1986 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GLOB_DAT);
1987 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_JMP_SLOT);
1988 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_RELATIVE);
1989 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_PLT_B22_PCREL);
1990 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_LO16);
1991 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_HI16);
1992 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_32);
1993 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_LO16);
1994 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_HI16);
1995 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_32);
1996 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_16);
1997 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPMOD_32);
1998 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_LO16);
1999 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_HI16);
2000 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_32);
2001 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_16);
2002 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_PLT_B22_PCREL);
2003 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_LO16);
2004 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_HI16);
2005 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_32);
2006 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_16);
2007 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_LO16);
2008 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_HI16);
2009 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_32);
2010 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_LO16);
2011 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_HI16);
2012 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_32);
2013 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_16);
2014 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_LO16);
2015 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_HI16);
2016 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_32);
2017 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_16);
2018 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_6_PCREL_X);
2019 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_32_6_X);
2020 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_16_X);
2021 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_11_X);
2022 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_32_6_X);
2023 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_16_X);
2024 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_11_X);
2025 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_32_6_X);
2026 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_16_X);
2027 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_11_X);
2028 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_32_6_X);
2029 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_16_X);
2030 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_11_X);
2031 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_32_6_X);
2032 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_16_X);
2033 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_32_6_X);
2034 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_16_X);
2035 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_11_X);
2036 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_32_6_X);
2037 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_16_X);
2038 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_11_X);
2044 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_NONE);
2045 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR32);
2046 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR24);
2047 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR16);
2048 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR16_LO);
2049 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR16_HI);
2050 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR16_HA);
2051 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR14);
2052 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR14_BRTAKEN);
2053 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR14_BRNTAKEN);
2054 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_REL24);
2055 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_REL14);
2056 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_REL14_BRTAKEN);
2057 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_REL14_BRNTAKEN);
2058 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_REL32);
2059 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_TPREL16_LO);
2060 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_TPREL16_HA);
2066 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_NONE);
2067 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR32);
2068 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR24);
2069 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR16);
2070 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR16_LO);
2071 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR16_HI);
2072 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR16_HA);
2073 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR14);
2074 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR14_BRTAKEN);
2075 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR14_BRNTAKEN);
2076 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_REL24);
2077 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_REL14);
2078 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_REL14_BRTAKEN);
2079 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_REL14_BRNTAKEN);
2080 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_REL32);
2081 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR64);
2082 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR16_HIGHER);
2083 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR16_HIGHEST);
2084 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_REL64);
2085 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TOC16);
2086 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TOC16_LO);
2087 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TOC16_HA);
2088 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TOC);
2089 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR16_DS);
2090 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR16_LO_DS);
2091 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TOC16_DS);
2092 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TOC16_LO_DS);
2093 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TLS);
2094 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TPREL16_LO);
2095 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TPREL16_HA);
2096 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_DTPREL16_LO);
2097 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_DTPREL16_HA);
2098 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_GOT_TLSGD16_LO);
2099 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_GOT_TLSGD16_HA);
2100 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_GOT_TLSLD16_LO);
2101 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_GOT_TLSLD16_HA);
2102 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_GOT_TPREL16_LO_DS);
2103 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_GOT_TPREL16_HA);
2104 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TLSGD);
2105 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TLSLD);
2111 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_NONE);
2112 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_8);
2113 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_12);
2114 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_16);
2115 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_32);
2116 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PC32);
2117 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOT12);
2118 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOT32);
2119 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PLT32);
2120 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_COPY);
2121 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GLOB_DAT);
2122 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_JMP_SLOT);
2123 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_RELATIVE);
2124 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTOFF);
2125 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTPC);
2126 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOT16);
2127 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PC16);
2128 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PC16DBL);
2129 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PLT16DBL);
2130 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PC32DBL);
2131 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PLT32DBL);
2132 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTPCDBL);
2133 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_64);
2134 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PC64);
2135 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOT64);
2136 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PLT64);
2137 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTENT);
2138 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTOFF16);
2139 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTOFF64);
2140 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTPLT12);
2141 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTPLT16);
2142 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTPLT32);
2143 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTPLT64);
2144 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTPLTENT);
2145 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PLTOFF16);
2146 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PLTOFF32);
2147 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PLTOFF64);
2148 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_LOAD);
2149 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_GDCALL);
2150 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_LDCALL);
2151 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_GD32);
2152 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_GD64);
2153 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_GOTIE12);
2154 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_GOTIE32);
2155 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_GOTIE64);
2156 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_LDM32);
2157 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_LDM64);
2158 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_IE32);
2159 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_IE64);
2160 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_IEENT);
2161 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_LE32);
2162 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_LE64);
2163 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_LDO32);
2164 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_LDO64);
2165 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_DTPMOD);
2166 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_DTPOFF);
2167 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_TPOFF);
2168 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_20);
2169 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOT20);
2170 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTPLT20);
2171 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_GOTIE20);
2172 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_IRELATIVE);
2181 #undef LLVM_ELF_SWITCH_RELOC_TYPE_NAME
2183 template<class ELFT>
2184 error_code ELFObjectFile<ELFT>::getRelocationTypeName(
2185 DataRefImpl Rel, SmallVectorImpl<char> &Result) const {
2186 const Elf_Shdr *sec = getRelSection(Rel);
2188 switch (sec->sh_type) {
2190 return object_error::parse_failed;
2191 case ELF::SHT_REL : {
2192 type = getRel(Rel)->getType(isMips64EL());
2195 case ELF::SHT_RELA : {
2196 type = getRela(Rel)->getType(isMips64EL());
2201 if (!isMips64EL()) {
2202 StringRef Name = getRelocationTypeName(type);
2203 Result.append(Name.begin(), Name.end());
2205 uint8_t Type1 = (type >> 0) & 0xFF;
2206 uint8_t Type2 = (type >> 8) & 0xFF;
2207 uint8_t Type3 = (type >> 16) & 0xFF;
2209 // Concat all three relocation type names.
2210 StringRef Name = getRelocationTypeName(Type1);
2211 Result.append(Name.begin(), Name.end());
2213 Name = getRelocationTypeName(Type2);
2214 Result.append(1, '/');
2215 Result.append(Name.begin(), Name.end());
2217 Name = getRelocationTypeName(Type3);
2218 Result.append(1, '/');
2219 Result.append(Name.begin(), Name.end());
2222 return object_error::success;
2225 template<class ELFT>
2226 error_code ELFObjectFile<ELFT>::getRelocationAddend(
2227 DataRefImpl Rel, int64_t &Result) const {
2228 const Elf_Shdr *sec = getRelSection(Rel);
2229 switch (sec->sh_type) {
2231 report_fatal_error("Invalid section type in Rel!");
2232 case ELF::SHT_REL : {
2234 return object_error::success;
2236 case ELF::SHT_RELA : {
2237 Result = getRela(Rel)->r_addend;
2238 return object_error::success;
2243 template<class ELFT>
2244 error_code ELFObjectFile<ELFT>::getRelocationValueString(
2245 DataRefImpl Rel, SmallVectorImpl<char> &Result) const {
2246 const Elf_Shdr *sec = getRelSection(Rel);
2250 uint16_t symbol_index = 0;
2251 switch (sec->sh_type) {
2253 return object_error::parse_failed;
2254 case ELF::SHT_REL: {
2255 type = getRel(Rel)->getType(isMips64EL());
2256 symbol_index = getRel(Rel)->getSymbol(isMips64EL());
2257 // TODO: Read implicit addend from section data.
2260 case ELF::SHT_RELA: {
2261 type = getRela(Rel)->getType(isMips64EL());
2262 symbol_index = getRela(Rel)->getSymbol(isMips64EL());
2263 addend = getRela(Rel)->r_addend;
2267 const Elf_Sym *symb = getEntry<Elf_Sym>(sec->sh_link, symbol_index);
2269 if (error_code ec = getSymbolName(getSection(sec->sh_link), symb, symname))
2271 switch (Header->e_machine) {
2272 case ELF::EM_X86_64:
2274 case ELF::R_X86_64_PC8:
2275 case ELF::R_X86_64_PC16:
2276 case ELF::R_X86_64_PC32: {
2278 raw_string_ostream fmt(fmtbuf);
2279 fmt << symname << (addend < 0 ? "" : "+") << addend << "-P";
2281 Result.append(fmtbuf.begin(), fmtbuf.end());
2284 case ELF::R_X86_64_8:
2285 case ELF::R_X86_64_16:
2286 case ELF::R_X86_64_32:
2287 case ELF::R_X86_64_32S:
2288 case ELF::R_X86_64_64: {
2290 raw_string_ostream fmt(fmtbuf);
2291 fmt << symname << (addend < 0 ? "" : "+") << addend;
2293 Result.append(fmtbuf.begin(), fmtbuf.end());
2300 case ELF::EM_AARCH64:
2302 case ELF::EM_HEXAGON:
2309 Result.append(res.begin(), res.end());
2310 return object_error::success;
2313 // Verify that the last byte in the string table in a null.
2314 template<class ELFT>
2315 void ELFObjectFile<ELFT>::VerifyStrTab(const Elf_Shdr *sh) const {
2316 const char *strtab = (const char*)base() + sh->sh_offset;
2317 if (strtab[sh->sh_size - 1] != 0)
2318 // FIXME: Proper error handling.
2319 report_fatal_error("String table must end with a null terminator!");
2322 template<class ELFT>
2323 ELFObjectFile<ELFT>::ELFObjectFile(MemoryBuffer *Object, error_code &ec)
2324 : ObjectFile(getELFType(
2325 static_cast<endianness>(ELFT::TargetEndianness) == support::little,
2328 , isDyldELFObject(false)
2329 , SectionHeaderTable(0)
2330 , dot_shstrtab_sec(0)
2333 , dot_dynamic_sec(0)
2334 , dot_gnu_version_sec(0)
2335 , dot_gnu_version_r_sec(0)
2336 , dot_gnu_version_d_sec(0)
2340 const uint64_t FileSize = Data->getBufferSize();
2342 if (sizeof(Elf_Ehdr) > FileSize)
2343 // FIXME: Proper error handling.
2344 report_fatal_error("File too short!");
2346 Header = reinterpret_cast<const Elf_Ehdr *>(base());
2348 if (Header->e_shoff == 0)
2351 const uint64_t SectionTableOffset = Header->e_shoff;
2353 if (SectionTableOffset + sizeof(Elf_Shdr) > FileSize)
2354 // FIXME: Proper error handling.
2355 report_fatal_error("Section header table goes past end of file!");
2357 // The getNumSections() call below depends on SectionHeaderTable being set.
2358 SectionHeaderTable =
2359 reinterpret_cast<const Elf_Shdr *>(base() + SectionTableOffset);
2360 const uint64_t SectionTableSize = getNumSections() * Header->e_shentsize;
2362 if (SectionTableOffset + SectionTableSize > FileSize)
2363 // FIXME: Proper error handling.
2364 report_fatal_error("Section table goes past end of file!");
2366 // To find the symbol tables we walk the section table to find SHT_SYMTAB.
2367 const Elf_Shdr* SymbolTableSectionHeaderIndex = 0;
2368 const Elf_Shdr* sh = SectionHeaderTable;
2370 // Reserve SymbolTableSections[0] for .dynsym
2371 SymbolTableSections.push_back(NULL);
2373 for (uint64_t i = 0, e = getNumSections(); i != e; ++i) {
2374 switch (sh->sh_type) {
2375 case ELF::SHT_SYMTAB_SHNDX: {
2376 if (SymbolTableSectionHeaderIndex)
2377 // FIXME: Proper error handling.
2378 report_fatal_error("More than one .symtab_shndx!");
2379 SymbolTableSectionHeaderIndex = sh;
2382 case ELF::SHT_SYMTAB: {
2383 SymbolTableSectionsIndexMap[i] = SymbolTableSections.size();
2384 SymbolTableSections.push_back(sh);
2387 case ELF::SHT_DYNSYM: {
2388 if (SymbolTableSections[0] != NULL)
2389 // FIXME: Proper error handling.
2390 report_fatal_error("More than one .dynsym!");
2391 SymbolTableSectionsIndexMap[i] = 0;
2392 SymbolTableSections[0] = sh;
2398 case ELF::SHT_DYNAMIC: {
2399 if (dot_dynamic_sec != NULL)
2400 // FIXME: Proper error handling.
2401 report_fatal_error("More than one .dynamic!");
2402 dot_dynamic_sec = sh;
2405 case ELF::SHT_GNU_versym: {
2406 if (dot_gnu_version_sec != NULL)
2407 // FIXME: Proper error handling.
2408 report_fatal_error("More than one .gnu.version section!");
2409 dot_gnu_version_sec = sh;
2412 case ELF::SHT_GNU_verdef: {
2413 if (dot_gnu_version_d_sec != NULL)
2414 // FIXME: Proper error handling.
2415 report_fatal_error("More than one .gnu.version_d section!");
2416 dot_gnu_version_d_sec = sh;
2419 case ELF::SHT_GNU_verneed: {
2420 if (dot_gnu_version_r_sec != NULL)
2421 // FIXME: Proper error handling.
2422 report_fatal_error("More than one .gnu.version_r section!");
2423 dot_gnu_version_r_sec = sh;
2430 // Get string table sections.
2431 dot_shstrtab_sec = getSection(getStringTableIndex());
2432 if (dot_shstrtab_sec) {
2433 // Verify that the last byte in the string table in a null.
2434 VerifyStrTab(dot_shstrtab_sec);
2437 // Merge this into the above loop.
2438 for (const char *i = reinterpret_cast<const char *>(SectionHeaderTable),
2439 *e = i + getNumSections() * Header->e_shentsize;
2440 i != e; i += Header->e_shentsize) {
2441 const Elf_Shdr *sh = reinterpret_cast<const Elf_Shdr*>(i);
2442 if (sh->sh_type == ELF::SHT_STRTAB) {
2443 StringRef SectionName(getString(dot_shstrtab_sec, sh->sh_name));
2444 if (SectionName == ".strtab") {
2445 if (dot_strtab_sec != 0)
2446 // FIXME: Proper error handling.
2447 report_fatal_error("Already found section named .strtab!");
2448 dot_strtab_sec = sh;
2449 VerifyStrTab(dot_strtab_sec);
2450 } else if (SectionName == ".dynstr") {
2451 if (dot_dynstr_sec != 0)
2452 // FIXME: Proper error handling.
2453 report_fatal_error("Already found section named .dynstr!");
2454 dot_dynstr_sec = sh;
2455 VerifyStrTab(dot_dynstr_sec);
2460 // Build symbol name side-mapping if there is one.
2461 if (SymbolTableSectionHeaderIndex) {
2462 const Elf_Word *ShndxTable = reinterpret_cast<const Elf_Word*>(base() +
2463 SymbolTableSectionHeaderIndex->sh_offset);
2465 for (symbol_iterator si = begin_symbols(),
2466 se = end_symbols(); si != se; si.increment(ec)) {
2468 report_fatal_error("Fewer extended symbol table entries than symbols!");
2469 if (*ShndxTable != ELF::SHN_UNDEF)
2470 ExtendedSymbolTable[getSymbol(si->getRawDataRefImpl())] = *ShndxTable;
2476 // Get the symbol table index in the symtab section given a symbol
2477 template<class ELFT>
2478 uint64_t ELFObjectFile<ELFT>::getSymbolIndex(const Elf_Sym *Sym) const {
2479 assert(SymbolTableSections.size() == 1 && "Only one symbol table supported!");
2480 const Elf_Shdr *SymTab = *SymbolTableSections.begin();
2481 uintptr_t SymLoc = uintptr_t(Sym);
2482 uintptr_t SymTabLoc = uintptr_t(base() + SymTab->sh_offset);
2483 assert(SymLoc > SymTabLoc && "Symbol not in symbol table!");
2484 uint64_t SymOffset = SymLoc - SymTabLoc;
2485 assert(SymOffset % SymTab->sh_entsize == 0 &&
2486 "Symbol not multiple of symbol size!");
2487 return SymOffset / SymTab->sh_entsize;
2490 template<class ELFT>
2491 symbol_iterator ELFObjectFile<ELFT>::begin_symbols() const {
2492 DataRefImpl SymbolData;
2493 if (SymbolTableSections.size() <= 1) {
2494 SymbolData.d.a = std::numeric_limits<uint32_t>::max();
2495 SymbolData.d.b = std::numeric_limits<uint32_t>::max();
2497 SymbolData.d.a = 1; // The 0th symbol in ELF is fake.
2498 SymbolData.d.b = 1; // The 0th table is .dynsym
2500 return symbol_iterator(SymbolRef(SymbolData, this));
2503 template<class ELFT>
2504 symbol_iterator ELFObjectFile<ELFT>::end_symbols() const {
2505 DataRefImpl SymbolData;
2506 SymbolData.d.a = std::numeric_limits<uint32_t>::max();
2507 SymbolData.d.b = std::numeric_limits<uint32_t>::max();
2508 return symbol_iterator(SymbolRef(SymbolData, this));
2511 template<class ELFT>
2512 symbol_iterator ELFObjectFile<ELFT>::begin_dynamic_symbols() const {
2513 DataRefImpl SymbolData;
2514 if (SymbolTableSections[0] == NULL) {
2515 SymbolData.d.a = std::numeric_limits<uint32_t>::max();
2516 SymbolData.d.b = std::numeric_limits<uint32_t>::max();
2518 SymbolData.d.a = 1; // The 0th symbol in ELF is fake.
2519 SymbolData.d.b = 0; // The 0th table is .dynsym
2521 return symbol_iterator(SymbolRef(SymbolData, this));
2524 template<class ELFT>
2525 symbol_iterator ELFObjectFile<ELFT>::end_dynamic_symbols() const {
2526 DataRefImpl SymbolData;
2527 SymbolData.d.a = std::numeric_limits<uint32_t>::max();
2528 SymbolData.d.b = std::numeric_limits<uint32_t>::max();
2529 return symbol_iterator(SymbolRef(SymbolData, this));
2532 template<class ELFT>
2533 section_iterator ELFObjectFile<ELFT>::begin_sections() const {
2535 ret.p = reinterpret_cast<intptr_t>(base() + Header->e_shoff);
2536 return section_iterator(SectionRef(ret, this));
2539 template<class ELFT>
2540 section_iterator ELFObjectFile<ELFT>::end_sections() const {
2542 ret.p = reinterpret_cast<intptr_t>(base()
2544 + (Header->e_shentsize*getNumSections()));
2545 return section_iterator(SectionRef(ret, this));
2548 template<class ELFT>
2549 typename ELFObjectFile<ELFT>::Elf_Dyn_iterator
2550 ELFObjectFile<ELFT>::begin_dynamic_table() const {
2551 if (dot_dynamic_sec)
2552 return Elf_Dyn_iterator(dot_dynamic_sec->sh_entsize,
2553 (const char *)base() + dot_dynamic_sec->sh_offset);
2554 return Elf_Dyn_iterator(0, 0);
2557 template<class ELFT>
2558 typename ELFObjectFile<ELFT>::Elf_Dyn_iterator
2559 ELFObjectFile<ELFT>::end_dynamic_table(bool NULLEnd) const {
2560 if (dot_dynamic_sec) {
2561 Elf_Dyn_iterator Ret(dot_dynamic_sec->sh_entsize,
2562 (const char *)base() + dot_dynamic_sec->sh_offset +
2563 dot_dynamic_sec->sh_size);
2566 Elf_Dyn_iterator Start = begin_dynamic_table();
2567 while (Start != Ret && Start->getTag() != ELF::DT_NULL)
2570 // Include the DT_NULL.
2577 return Elf_Dyn_iterator(0, 0);
2580 template<class ELFT>
2581 StringRef ELFObjectFile<ELFT>::getLoadName() const {
2583 // Find the DT_SONAME entry
2584 Elf_Dyn_iterator it = begin_dynamic_table();
2585 Elf_Dyn_iterator ie = end_dynamic_table();
2586 while (it != ie && it->getTag() != ELF::DT_SONAME)
2590 if (dot_dynstr_sec == NULL)
2591 report_fatal_error("Dynamic string table is missing");
2592 dt_soname = getString(dot_dynstr_sec, it->getVal());
2600 template<class ELFT>
2601 library_iterator ELFObjectFile<ELFT>::begin_libraries_needed() const {
2602 // Find the first DT_NEEDED entry
2603 Elf_Dyn_iterator i = begin_dynamic_table();
2604 Elf_Dyn_iterator e = end_dynamic_table();
2605 while (i != e && i->getTag() != ELF::DT_NEEDED)
2609 DRI.p = reinterpret_cast<uintptr_t>(i.get());
2610 return library_iterator(LibraryRef(DRI, this));
2613 template<class ELFT>
2614 error_code ELFObjectFile<ELFT>::getLibraryNext(DataRefImpl Data,
2615 LibraryRef &Result) const {
2616 // Use the same DataRefImpl format as DynRef.
2617 Elf_Dyn_iterator i = Elf_Dyn_iterator(dot_dynamic_sec->sh_entsize,
2618 reinterpret_cast<const char *>(Data.p));
2619 Elf_Dyn_iterator e = end_dynamic_table();
2621 // Skip the current dynamic table entry and find the next DT_NEEDED entry.
2624 while (i != e && i->getTag() != ELF::DT_NEEDED);
2627 DRI.p = reinterpret_cast<uintptr_t>(i.get());
2628 Result = LibraryRef(DRI, this);
2629 return object_error::success;
2632 template<class ELFT>
2633 error_code ELFObjectFile<ELFT>::getLibraryPath(DataRefImpl Data,
2634 StringRef &Res) const {
2635 Elf_Dyn_iterator i = Elf_Dyn_iterator(dot_dynamic_sec->sh_entsize,
2636 reinterpret_cast<const char *>(Data.p));
2637 if (i == end_dynamic_table())
2638 report_fatal_error("getLibraryPath() called on iterator end");
2640 if (i->getTag() != ELF::DT_NEEDED)
2641 report_fatal_error("Invalid library_iterator");
2643 // This uses .dynstr to lookup the name of the DT_NEEDED entry.
2644 // THis works as long as DT_STRTAB == .dynstr. This is true most of
2645 // the time, but the specification allows exceptions.
2646 // TODO: This should really use DT_STRTAB instead. Doing this requires
2647 // reading the program headers.
2648 if (dot_dynstr_sec == NULL)
2649 report_fatal_error("Dynamic string table is missing");
2650 Res = getString(dot_dynstr_sec, i->getVal());
2651 return object_error::success;
2654 template<class ELFT>
2655 library_iterator ELFObjectFile<ELFT>::end_libraries_needed() const {
2656 Elf_Dyn_iterator e = end_dynamic_table();
2658 DRI.p = reinterpret_cast<uintptr_t>(e.get());
2659 return library_iterator(LibraryRef(DRI, this));
2662 template<class ELFT>
2663 uint8_t ELFObjectFile<ELFT>::getBytesInAddress() const {
2664 return ELFT::Is64Bits ? 8 : 4;
2667 template<class ELFT>
2668 StringRef ELFObjectFile<ELFT>::getFileFormatName() const {
2669 switch(Header->e_ident[ELF::EI_CLASS]) {
2670 case ELF::ELFCLASS32:
2671 switch(Header->e_machine) {
2673 return "ELF32-i386";
2674 case ELF::EM_X86_64:
2675 return "ELF32-x86-64";
2678 case ELF::EM_HEXAGON:
2679 return "ELF32-hexagon";
2681 return "ELF32-mips";
2685 return "ELF32-unknown";
2687 case ELF::ELFCLASS64:
2688 switch(Header->e_machine) {
2690 return "ELF64-i386";
2691 case ELF::EM_X86_64:
2692 return "ELF64-x86-64";
2693 case ELF::EM_AARCH64:
2694 return "ELF64-aarch64";
2696 return "ELF64-ppc64";
2698 return "ELF64-s390";
2700 return "ELF64-unknown";
2703 // FIXME: Proper error handling.
2704 report_fatal_error("Invalid ELFCLASS!");
2708 template<class ELFT>
2709 unsigned ELFObjectFile<ELFT>::getArch() const {
2710 switch(Header->e_machine) {
2713 case ELF::EM_X86_64:
2714 return Triple::x86_64;
2715 case ELF::EM_AARCH64:
2716 return Triple::aarch64;
2719 case ELF::EM_HEXAGON:
2720 return Triple::hexagon;
2722 return (ELFT::TargetEndianness == support::little) ?
2723 Triple::mipsel : Triple::mips;
2725 return Triple::ppc64;
2727 return Triple::systemz;
2729 return Triple::UnknownArch;
2733 template<class ELFT>
2734 uint64_t ELFObjectFile<ELFT>::getNumSections() const {
2735 assert(Header && "Header not initialized!");
2736 if (Header->e_shnum == ELF::SHN_UNDEF) {
2737 assert(SectionHeaderTable && "SectionHeaderTable not initialized!");
2738 return SectionHeaderTable->sh_size;
2740 return Header->e_shnum;
2743 template<class ELFT>
2745 ELFObjectFile<ELFT>::getStringTableIndex() const {
2746 if (Header->e_shnum == ELF::SHN_UNDEF) {
2747 if (Header->e_shstrndx == ELF::SHN_HIRESERVE)
2748 return SectionHeaderTable->sh_link;
2749 if (Header->e_shstrndx >= getNumSections())
2752 return Header->e_shstrndx;
2755 template<class ELFT>
2756 template<typename T>
2758 ELFObjectFile<ELFT>::getEntry(uint16_t Section, uint32_t Entry) const {
2759 return getEntry<T>(getSection(Section), Entry);
2762 template<class ELFT>
2763 template<typename T>
2765 ELFObjectFile<ELFT>::getEntry(const Elf_Shdr * Section, uint32_t Entry) const {
2766 return reinterpret_cast<const T *>(
2768 + Section->sh_offset
2769 + (Entry * Section->sh_entsize));
2772 template<class ELFT>
2773 const typename ELFObjectFile<ELFT>::Elf_Sym *
2774 ELFObjectFile<ELFT>::getSymbol(DataRefImpl Symb) const {
2775 return getEntry<Elf_Sym>(SymbolTableSections[Symb.d.b], Symb.d.a);
2778 template<class ELFT>
2779 const typename ELFObjectFile<ELFT>::Elf_Rel *
2780 ELFObjectFile<ELFT>::getRel(DataRefImpl Rel) const {
2781 return getEntry<Elf_Rel>(Rel.d.a, Rel.d.b);
2784 template<class ELFT>
2785 const typename ELFObjectFile<ELFT>::Elf_Rela *
2786 ELFObjectFile<ELFT>::getRela(DataRefImpl Rela) const {
2787 return getEntry<Elf_Rela>(Rela.d.a, Rela.d.b);
2790 template<class ELFT>
2791 const typename ELFObjectFile<ELFT>::Elf_Shdr *
2792 ELFObjectFile<ELFT>::getSection(DataRefImpl Symb) const {
2793 const Elf_Shdr *sec = getSection(Symb.d.b);
2794 if (sec->sh_type != ELF::SHT_SYMTAB || sec->sh_type != ELF::SHT_DYNSYM)
2795 // FIXME: Proper error handling.
2796 report_fatal_error("Invalid symbol table section!");
2800 template<class ELFT>
2801 const typename ELFObjectFile<ELFT>::Elf_Shdr *
2802 ELFObjectFile<ELFT>::getSection(uint32_t index) const {
2805 if (!SectionHeaderTable || index >= getNumSections())
2806 // FIXME: Proper error handling.
2807 report_fatal_error("Invalid section index!");
2809 return reinterpret_cast<const Elf_Shdr *>(
2810 reinterpret_cast<const char *>(SectionHeaderTable)
2811 + (index * Header->e_shentsize));
2814 template<class ELFT>
2815 const char *ELFObjectFile<ELFT>::getString(uint32_t section,
2816 ELF::Elf32_Word offset) const {
2817 return getString(getSection(section), offset);
2820 template<class ELFT>
2821 const char *ELFObjectFile<ELFT>::getString(const Elf_Shdr *section,
2822 ELF::Elf32_Word offset) const {
2823 assert(section && section->sh_type == ELF::SHT_STRTAB && "Invalid section!");
2824 if (offset >= section->sh_size)
2825 // FIXME: Proper error handling.
2826 report_fatal_error("Symbol name offset outside of string table!");
2827 return (const char *)base() + section->sh_offset + offset;
2830 template<class ELFT>
2831 error_code ELFObjectFile<ELFT>::getSymbolName(const Elf_Shdr *section,
2832 const Elf_Sym *symb,
2833 StringRef &Result) const {
2834 if (symb->st_name == 0) {
2835 const Elf_Shdr *section = getSection(symb);
2839 Result = getString(dot_shstrtab_sec, section->sh_name);
2840 return object_error::success;
2843 if (section == SymbolTableSections[0]) {
2844 // Symbol is in .dynsym, use .dynstr string table
2845 Result = getString(dot_dynstr_sec, symb->st_name);
2847 // Use the default symbol table name section.
2848 Result = getString(dot_strtab_sec, symb->st_name);
2850 return object_error::success;
2853 template<class ELFT>
2854 error_code ELFObjectFile<ELFT>::getSectionName(const Elf_Shdr *section,
2855 StringRef &Result) const {
2856 Result = StringRef(getString(dot_shstrtab_sec, section->sh_name));
2857 return object_error::success;
2860 template<class ELFT>
2861 error_code ELFObjectFile<ELFT>::getSymbolVersion(const Elf_Shdr *section,
2862 const Elf_Sym *symb,
2864 bool &IsDefault) const {
2865 // Handle non-dynamic symbols.
2866 if (section != SymbolTableSections[0]) {
2867 // Non-dynamic symbols can have versions in their names
2868 // A name of the form 'foo@V1' indicates version 'V1', non-default.
2869 // A name of the form 'foo@@V2' indicates version 'V2', default version.
2871 error_code ec = getSymbolName(section, symb, Name);
2872 if (ec != object_error::success)
2874 size_t atpos = Name.find('@');
2875 if (atpos == StringRef::npos) {
2878 return object_error::success;
2881 if (atpos < Name.size() && Name[atpos] == '@') {
2887 Version = Name.substr(atpos);
2888 return object_error::success;
2891 // This is a dynamic symbol. Look in the GNU symbol version table.
2892 if (dot_gnu_version_sec == NULL) {
2893 // No version table.
2896 return object_error::success;
2899 // Determine the position in the symbol table of this entry.
2900 const char *sec_start = (const char*)base() + section->sh_offset;
2901 size_t entry_index = ((const char*)symb - sec_start)/section->sh_entsize;
2903 // Get the corresponding version index entry
2904 const Elf_Versym *vs = getEntry<Elf_Versym>(dot_gnu_version_sec, entry_index);
2905 size_t version_index = vs->vs_index & ELF::VERSYM_VERSION;
2907 // Special markers for unversioned symbols.
2908 if (version_index == ELF::VER_NDX_LOCAL ||
2909 version_index == ELF::VER_NDX_GLOBAL) {
2912 return object_error::success;
2915 // Lookup this symbol in the version table
2917 if (version_index >= VersionMap.size() || VersionMap[version_index].isNull())
2918 report_fatal_error("Symbol has version index without corresponding "
2919 "define or reference entry");
2920 const VersionMapEntry &entry = VersionMap[version_index];
2922 // Get the version name string
2924 if (entry.isVerdef()) {
2925 // The first Verdaux entry holds the name.
2926 name_offset = entry.getVerdef()->getAux()->vda_name;
2928 name_offset = entry.getVernaux()->vna_name;
2930 Version = getString(dot_dynstr_sec, name_offset);
2933 if (entry.isVerdef()) {
2934 IsDefault = !(vs->vs_index & ELF::VERSYM_HIDDEN);
2939 return object_error::success;
2942 /// FIXME: Maybe we should have a base ElfObjectFile that is not a template
2943 /// and make these member functions?
2944 static inline error_code getELFRelocationAddend(const RelocationRef R,
2946 const ObjectFile *Obj = R.getObjectFile();
2947 DataRefImpl DRI = R.getRawDataRefImpl();
2948 // Little-endian 32-bit
2949 if (const ELF32LEObjectFile *ELFObj = dyn_cast<ELF32LEObjectFile>(Obj))
2950 return ELFObj->getRelocationAddend(DRI, Addend);
2952 // Big-endian 32-bit
2953 if (const ELF32BEObjectFile *ELFObj = dyn_cast<ELF32BEObjectFile>(Obj))
2954 return ELFObj->getRelocationAddend(DRI, Addend);
2956 // Little-endian 64-bit
2957 if (const ELF64LEObjectFile *ELFObj = dyn_cast<ELF64LEObjectFile>(Obj))
2958 return ELFObj->getRelocationAddend(DRI, Addend);
2960 // Big-endian 64-bit
2961 if (const ELF64BEObjectFile *ELFObj = dyn_cast<ELF64BEObjectFile>(Obj))
2962 return ELFObj->getRelocationAddend(DRI, Addend);
2964 llvm_unreachable("Object passed to getELFRelocationAddend() is not ELF");
2967 /// This is a generic interface for retrieving GNU symbol version
2968 /// information from an ELFObjectFile.
2969 static inline error_code GetELFSymbolVersion(const ObjectFile *Obj,
2970 const SymbolRef &Sym,
2973 // Little-endian 32-bit
2974 if (const ELF32LEObjectFile *ELFObj = dyn_cast<ELF32LEObjectFile>(Obj))
2975 return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
2977 // Big-endian 32-bit
2978 if (const ELF32BEObjectFile *ELFObj = dyn_cast<ELF32BEObjectFile>(Obj))
2979 return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
2981 // Little-endian 64-bit
2982 if (const ELF64LEObjectFile *ELFObj = dyn_cast<ELF64LEObjectFile>(Obj))
2983 return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
2985 // Big-endian 64-bit
2986 if (const ELF64BEObjectFile *ELFObj = dyn_cast<ELF64BEObjectFile>(Obj))
2987 return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
2989 llvm_unreachable("Object passed to GetELFSymbolVersion() is not ELF");
2992 /// This function returns the hash value for a symbol in the .dynsym section
2993 /// Name of the API remains consistent as specified in the libelf
2994 /// REF : http://www.sco.com/developers/gabi/latest/ch5.dynamic.html#hash
2995 static inline unsigned elf_hash(StringRef &symbolName) {
2997 for (unsigned i = 0, j = symbolName.size(); i < j; i++) {
2998 h = (h << 4) + symbolName[i];
2999 g = h & 0xf0000000L;