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 // Mip64 little endian has a "special" encoding of r_info. Instead of one
342 // 64 bit little endian number, it is a little ending 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 // Mip64 little endian has a "special" encoding of r_info. Instead of one
378 // 64 bit little endian number, it is a little ending 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;
585 typedef DenseMap<const Elf_Shdr*, SmallVector<uint32_t, 1> > RelocMap_t;
587 const Elf_Ehdr *Header;
588 const Elf_Shdr *SectionHeaderTable;
589 const Elf_Shdr *dot_shstrtab_sec; // Section header string table.
590 const Elf_Shdr *dot_strtab_sec; // Symbol header string table.
591 const Elf_Shdr *dot_dynstr_sec; // Dynamic symbol string table.
593 // SymbolTableSections[0] always points to the dynamic string table section
594 // header, or NULL if there is no dynamic string table.
595 Sections_t SymbolTableSections;
596 IndexMap_t SymbolTableSectionsIndexMap;
597 DenseMap<const Elf_Sym*, ELF::Elf64_Word> ExtendedSymbolTable;
599 const Elf_Shdr *dot_dynamic_sec; // .dynamic
600 const Elf_Shdr *dot_gnu_version_sec; // .gnu.version
601 const Elf_Shdr *dot_gnu_version_r_sec; // .gnu.version_r
602 const Elf_Shdr *dot_gnu_version_d_sec; // .gnu.version_d
604 // Pointer to SONAME entry in dynamic string table
605 // This is set the first time getLoadName is called.
606 mutable const char *dt_soname;
609 uint64_t getROffset(DataRefImpl Rel) const;
611 // Records for each version index the corresponding Verdef or Vernaux entry.
612 // This is filled the first time LoadVersionMap() is called.
613 class VersionMapEntry : public PointerIntPair<const void*, 1> {
615 // If the integer is 0, this is an Elf_Verdef*.
616 // If the integer is 1, this is an Elf_Vernaux*.
617 VersionMapEntry() : PointerIntPair<const void*, 1>(NULL, 0) { }
618 VersionMapEntry(const Elf_Verdef *verdef)
619 : PointerIntPair<const void*, 1>(verdef, 0) { }
620 VersionMapEntry(const Elf_Vernaux *vernaux)
621 : PointerIntPair<const void*, 1>(vernaux, 1) { }
622 bool isNull() const { return getPointer() == NULL; }
623 bool isVerdef() const { return !isNull() && getInt() == 0; }
624 bool isVernaux() const { return !isNull() && getInt() == 1; }
625 const Elf_Verdef *getVerdef() const {
626 return isVerdef() ? (const Elf_Verdef*)getPointer() : NULL;
628 const Elf_Vernaux *getVernaux() const {
629 return isVernaux() ? (const Elf_Vernaux*)getPointer() : NULL;
632 mutable SmallVector<VersionMapEntry, 16> VersionMap;
633 void LoadVersionDefs(const Elf_Shdr *sec) const;
634 void LoadVersionNeeds(const Elf_Shdr *ec) const;
635 void LoadVersionMap() const;
637 /// @brief Map sections to an array of relocation sections that reference
638 /// them sorted by section index.
639 RelocMap_t SectionRelocMap;
641 /// @brief Get the relocation section that contains \a Rel.
642 const Elf_Shdr *getRelSection(DataRefImpl Rel) const {
643 return getSection(Rel.w.b);
647 bool isRelocationHasAddend(DataRefImpl Rel) const;
649 const T *getEntry(uint16_t Section, uint32_t Entry) const;
651 const T *getEntry(const Elf_Shdr *Section, uint32_t Entry) const;
652 const Elf_Shdr *getSection(DataRefImpl index) const;
653 const Elf_Shdr *getSection(uint32_t index) const;
654 const Elf_Rel *getRel(DataRefImpl Rel) const;
655 const Elf_Rela *getRela(DataRefImpl Rela) const;
656 const char *getString(uint32_t section, uint32_t offset) const;
657 const char *getString(const Elf_Shdr *section, uint32_t offset) const;
658 error_code getSymbolVersion(const Elf_Shdr *section,
661 bool &IsDefault) const;
662 void VerifyStrTab(const Elf_Shdr *sh) const;
665 const Elf_Sym *getSymbol(DataRefImpl Symb) const; // FIXME: Should be private?
666 void validateSymbol(DataRefImpl Symb) const;
667 StringRef getRelocationTypeName(uint32_t Type) const;
670 error_code getSymbolName(const Elf_Shdr *section,
672 StringRef &Res) const;
673 error_code getSectionName(const Elf_Shdr *section,
674 StringRef &Res) const;
675 const Elf_Dyn *getDyn(DataRefImpl DynData) const;
676 error_code getSymbolVersion(SymbolRef Symb, StringRef &Version,
677 bool &IsDefault) const;
678 uint64_t getSymbolIndex(const Elf_Sym *sym) const;
679 error_code getRelocationAddend(DataRefImpl Rel, int64_t &Res) const;
681 virtual error_code getSymbolNext(DataRefImpl Symb, SymbolRef &Res) const;
682 virtual error_code getSymbolName(DataRefImpl Symb, StringRef &Res) const;
683 virtual error_code getSymbolFileOffset(DataRefImpl Symb, uint64_t &Res) const;
684 virtual error_code getSymbolAddress(DataRefImpl Symb, uint64_t &Res) const;
685 virtual error_code getSymbolAlignment(DataRefImpl Symb, uint32_t &Res) const;
686 virtual error_code getSymbolSize(DataRefImpl Symb, uint64_t &Res) const;
687 virtual error_code getSymbolNMTypeChar(DataRefImpl Symb, char &Res) const;
688 virtual error_code getSymbolFlags(DataRefImpl Symb, uint32_t &Res) const;
689 virtual error_code getSymbolType(DataRefImpl Symb, SymbolRef::Type &Res) const;
690 virtual error_code getSymbolSection(DataRefImpl Symb,
691 section_iterator &Res) const;
692 virtual error_code getSymbolValue(DataRefImpl Symb, uint64_t &Val) const;
694 virtual error_code getLibraryNext(DataRefImpl Data, LibraryRef &Result) const;
695 virtual error_code getLibraryPath(DataRefImpl Data, StringRef &Res) const;
697 virtual error_code getSectionNext(DataRefImpl Sec, SectionRef &Res) const;
698 virtual error_code getSectionName(DataRefImpl Sec, StringRef &Res) const;
699 virtual error_code getSectionAddress(DataRefImpl Sec, uint64_t &Res) const;
700 virtual error_code getSectionSize(DataRefImpl Sec, uint64_t &Res) const;
701 virtual error_code getSectionContents(DataRefImpl Sec, StringRef &Res) const;
702 virtual error_code getSectionAlignment(DataRefImpl Sec, uint64_t &Res) const;
703 virtual error_code isSectionText(DataRefImpl Sec, bool &Res) const;
704 virtual error_code isSectionData(DataRefImpl Sec, bool &Res) const;
705 virtual error_code isSectionBSS(DataRefImpl Sec, bool &Res) const;
706 virtual error_code isSectionRequiredForExecution(DataRefImpl Sec,
708 virtual error_code isSectionVirtual(DataRefImpl Sec, bool &Res) const;
709 virtual error_code isSectionZeroInit(DataRefImpl Sec, bool &Res) const;
710 virtual error_code isSectionReadOnlyData(DataRefImpl Sec, bool &Res) const;
711 virtual error_code sectionContainsSymbol(DataRefImpl Sec, DataRefImpl Symb,
713 virtual relocation_iterator getSectionRelBegin(DataRefImpl Sec) const;
714 virtual relocation_iterator getSectionRelEnd(DataRefImpl Sec) const;
716 virtual error_code getRelocationNext(DataRefImpl Rel,
717 RelocationRef &Res) const;
718 virtual error_code getRelocationAddress(DataRefImpl Rel,
719 uint64_t &Res) const;
720 virtual error_code getRelocationOffset(DataRefImpl Rel,
721 uint64_t &Res) const;
722 virtual error_code getRelocationSymbol(DataRefImpl Rel,
723 SymbolRef &Res) const;
724 virtual error_code getRelocationType(DataRefImpl Rel,
725 uint64_t &Res) const;
726 virtual error_code getRelocationTypeName(DataRefImpl Rel,
727 SmallVectorImpl<char> &Result) const;
728 virtual error_code getRelocationValueString(DataRefImpl Rel,
729 SmallVectorImpl<char> &Result) const;
732 ELFObjectFile(MemoryBuffer *Object, error_code &ec);
734 bool isMips64EL() const {
735 return Header->e_machine == ELF::EM_MIPS &&
736 Header->getFileClass() == ELF::ELFCLASS64 &&
737 Header->getDataEncoding() == ELF::ELFDATA2LSB;
740 virtual symbol_iterator begin_symbols() const;
741 virtual symbol_iterator end_symbols() const;
743 virtual symbol_iterator begin_dynamic_symbols() const;
744 virtual symbol_iterator end_dynamic_symbols() const;
746 virtual section_iterator begin_sections() const;
747 virtual section_iterator end_sections() const;
749 virtual library_iterator begin_libraries_needed() const;
750 virtual library_iterator end_libraries_needed() const;
752 const Elf_Shdr *getDynamicSymbolTableSectionHeader() const {
753 return SymbolTableSections[0];
756 const Elf_Shdr *getDynamicStringTableSectionHeader() const {
757 return dot_dynstr_sec;
760 Elf_Dyn_iterator begin_dynamic_table() const;
761 /// \param NULLEnd use one past the first DT_NULL entry as the end instead of
762 /// the section size.
763 Elf_Dyn_iterator end_dynamic_table(bool NULLEnd = false) const;
765 Elf_Sym_iterator begin_elf_dynamic_symbols() const {
766 const Elf_Shdr *DynSymtab = SymbolTableSections[0];
768 return Elf_Sym_iterator(DynSymtab->sh_entsize,
769 (const char *)base() + DynSymtab->sh_offset);
770 return Elf_Sym_iterator(0, 0);
773 Elf_Sym_iterator end_elf_dynamic_symbols() const {
774 const Elf_Shdr *DynSymtab = SymbolTableSections[0];
776 return Elf_Sym_iterator(DynSymtab->sh_entsize, (const char *)base() +
777 DynSymtab->sh_offset + DynSymtab->sh_size);
778 return Elf_Sym_iterator(0, 0);
781 Elf_Rela_Iter beginELFRela(const Elf_Shdr *sec) const {
782 return Elf_Rela_Iter(sec->sh_entsize,
783 (const char *)(base() + sec->sh_offset));
786 Elf_Rela_Iter endELFRela(const Elf_Shdr *sec) const {
787 return Elf_Rela_Iter(sec->sh_entsize, (const char *)
788 (base() + sec->sh_offset + sec->sh_size));
791 Elf_Rel_Iter beginELFRel(const Elf_Shdr *sec) const {
792 return Elf_Rel_Iter(sec->sh_entsize,
793 (const char *)(base() + sec->sh_offset));
796 Elf_Rel_Iter endELFRel(const Elf_Shdr *sec) const {
797 return Elf_Rel_Iter(sec->sh_entsize, (const char *)
798 (base() + sec->sh_offset + sec->sh_size));
801 /// \brief Iterate over program header table.
802 typedef ELFEntityIterator<const Elf_Phdr> Elf_Phdr_Iter;
804 Elf_Phdr_Iter begin_program_headers() const {
805 return Elf_Phdr_Iter(Header->e_phentsize,
806 (const char*)base() + Header->e_phoff);
809 Elf_Phdr_Iter end_program_headers() const {
810 return Elf_Phdr_Iter(Header->e_phentsize,
811 (const char*)base() +
813 (Header->e_phnum * Header->e_phentsize));
816 virtual uint8_t getBytesInAddress() const;
817 virtual StringRef getFileFormatName() const;
818 virtual StringRef getObjectType() const { return "ELF"; }
819 virtual unsigned getArch() const;
820 virtual StringRef getLoadName() const;
821 virtual error_code getSectionContents(const Elf_Shdr *sec,
822 StringRef &Res) const;
824 uint64_t getNumSections() const;
825 uint64_t getStringTableIndex() const;
826 ELF::Elf64_Word getSymbolTableIndex(const Elf_Sym *symb) const;
827 const Elf_Ehdr *getElfHeader() const;
828 const Elf_Shdr *getSection(const Elf_Sym *symb) const;
829 const Elf_Shdr *getElfSection(section_iterator &It) const;
830 const Elf_Sym *getElfSymbol(symbol_iterator &It) const;
831 const Elf_Sym *getElfSymbol(uint32_t index) const;
833 // Methods for type inquiry through isa, cast, and dyn_cast
834 bool isDyldType() const { return isDyldELFObject; }
835 static inline bool classof(const Binary *v) {
836 return v->getType() == getELFType(ELFT::TargetEndianness == support::little,
841 // Use an alignment of 2 for the typedefs since that is the worst case for
842 // ELF files in archives.
843 typedef ELFObjectFile<ELFType<support::little, 2, false> > ELF32LEObjectFile;
844 typedef ELFObjectFile<ELFType<support::little, 2, true> > ELF64LEObjectFile;
845 typedef ELFObjectFile<ELFType<support::big, 2, false> > ELF32BEObjectFile;
846 typedef ELFObjectFile<ELFType<support::big, 2, true> > ELF64BEObjectFile;
848 // Iterate through the version definitions, and place each Elf_Verdef
849 // in the VersionMap according to its index.
851 void ELFObjectFile<ELFT>::LoadVersionDefs(const Elf_Shdr *sec) const {
852 unsigned vd_size = sec->sh_size; // Size of section in bytes
853 unsigned vd_count = sec->sh_info; // Number of Verdef entries
854 const char *sec_start = (const char*)base() + sec->sh_offset;
855 const char *sec_end = sec_start + vd_size;
856 // The first Verdef entry is at the start of the section.
857 const char *p = sec_start;
858 for (unsigned i = 0; i < vd_count; i++) {
859 if (p + sizeof(Elf_Verdef) > sec_end)
860 report_fatal_error("Section ended unexpectedly while scanning "
861 "version definitions.");
862 const Elf_Verdef *vd = reinterpret_cast<const Elf_Verdef *>(p);
863 if (vd->vd_version != ELF::VER_DEF_CURRENT)
864 report_fatal_error("Unexpected verdef version");
865 size_t index = vd->vd_ndx & ELF::VERSYM_VERSION;
866 if (index >= VersionMap.size())
867 VersionMap.resize(index+1);
868 VersionMap[index] = VersionMapEntry(vd);
873 // Iterate through the versions needed section, and place each Elf_Vernaux
874 // in the VersionMap according to its index.
876 void ELFObjectFile<ELFT>::LoadVersionNeeds(const Elf_Shdr *sec) const {
877 unsigned vn_size = sec->sh_size; // Size of section in bytes
878 unsigned vn_count = sec->sh_info; // Number of Verneed entries
879 const char *sec_start = (const char*)base() + sec->sh_offset;
880 const char *sec_end = sec_start + vn_size;
881 // The first Verneed entry is at the start of the section.
882 const char *p = sec_start;
883 for (unsigned i = 0; i < vn_count; i++) {
884 if (p + sizeof(Elf_Verneed) > sec_end)
885 report_fatal_error("Section ended unexpectedly while scanning "
886 "version needed records.");
887 const Elf_Verneed *vn = reinterpret_cast<const Elf_Verneed *>(p);
888 if (vn->vn_version != ELF::VER_NEED_CURRENT)
889 report_fatal_error("Unexpected verneed version");
890 // Iterate through the Vernaux entries
891 const char *paux = p + vn->vn_aux;
892 for (unsigned j = 0; j < vn->vn_cnt; j++) {
893 if (paux + sizeof(Elf_Vernaux) > sec_end)
894 report_fatal_error("Section ended unexpected while scanning auxiliary "
895 "version needed records.");
896 const Elf_Vernaux *vna = reinterpret_cast<const Elf_Vernaux *>(paux);
897 size_t index = vna->vna_other & ELF::VERSYM_VERSION;
898 if (index >= VersionMap.size())
899 VersionMap.resize(index+1);
900 VersionMap[index] = VersionMapEntry(vna);
901 paux += vna->vna_next;
908 void ELFObjectFile<ELFT>::LoadVersionMap() const {
909 // If there is no dynamic symtab or version table, there is nothing to do.
910 if (SymbolTableSections[0] == NULL || dot_gnu_version_sec == NULL)
913 // Has the VersionMap already been loaded?
914 if (VersionMap.size() > 0)
917 // The first two version indexes are reserved.
918 // Index 0 is LOCAL, index 1 is GLOBAL.
919 VersionMap.push_back(VersionMapEntry());
920 VersionMap.push_back(VersionMapEntry());
922 if (dot_gnu_version_d_sec)
923 LoadVersionDefs(dot_gnu_version_d_sec);
925 if (dot_gnu_version_r_sec)
926 LoadVersionNeeds(dot_gnu_version_r_sec);
930 void ELFObjectFile<ELFT>::validateSymbol(DataRefImpl Symb) const {
932 const Elf_Sym *symb = getSymbol(Symb);
933 const Elf_Shdr *SymbolTableSection = SymbolTableSections[Symb.d.b];
934 // FIXME: We really need to do proper error handling in the case of an invalid
935 // input file. Because we don't use exceptions, I think we'll just pass
936 // an error object around.
938 && SymbolTableSection
939 && symb >= (const Elf_Sym*)(base()
940 + SymbolTableSection->sh_offset)
941 && symb < (const Elf_Sym*)(base()
942 + SymbolTableSection->sh_offset
943 + SymbolTableSection->sh_size)))
944 // FIXME: Proper error handling.
945 report_fatal_error("Symb must point to a valid symbol!");
950 error_code ELFObjectFile<ELFT>::getSymbolNext(DataRefImpl Symb,
951 SymbolRef &Result) const {
952 validateSymbol(Symb);
953 const Elf_Shdr *SymbolTableSection = SymbolTableSections[Symb.d.b];
956 // Check to see if we are at the end of this symbol table.
957 if (Symb.d.a >= SymbolTableSection->getEntityCount()) {
958 // We are at the end. If there are other symbol tables, jump to them.
959 // If the symbol table is .dynsym, we are iterating dynamic symbols,
960 // and there is only one table of these.
963 Symb.d.a = 1; // The 0th symbol in ELF is fake.
965 // Otherwise return the terminator.
966 if (Symb.d.b == 0 || Symb.d.b >= SymbolTableSections.size()) {
967 Symb.d.a = std::numeric_limits<uint32_t>::max();
968 Symb.d.b = std::numeric_limits<uint32_t>::max();
972 Result = SymbolRef(Symb, this);
973 return object_error::success;
977 error_code ELFObjectFile<ELFT>::getSymbolName(DataRefImpl Symb,
978 StringRef &Result) const {
979 validateSymbol(Symb);
980 const Elf_Sym *symb = getSymbol(Symb);
981 return getSymbolName(SymbolTableSections[Symb.d.b], symb, Result);
985 error_code ELFObjectFile<ELFT>::getSymbolVersion(SymbolRef SymRef,
987 bool &IsDefault) const {
988 DataRefImpl Symb = SymRef.getRawDataRefImpl();
989 validateSymbol(Symb);
990 const Elf_Sym *symb = getSymbol(Symb);
991 return getSymbolVersion(SymbolTableSections[Symb.d.b], symb,
996 ELF::Elf64_Word ELFObjectFile<ELFT>
997 ::getSymbolTableIndex(const Elf_Sym *symb) const {
998 if (symb->st_shndx == ELF::SHN_XINDEX)
999 return ExtendedSymbolTable.lookup(symb);
1000 return symb->st_shndx;
1003 template<class ELFT>
1004 const typename ELFObjectFile<ELFT>::Elf_Shdr *
1005 ELFObjectFile<ELFT>::getSection(const Elf_Sym *symb) const {
1006 if (symb->st_shndx == ELF::SHN_XINDEX)
1007 return getSection(ExtendedSymbolTable.lookup(symb));
1008 if (symb->st_shndx >= ELF::SHN_LORESERVE)
1010 return getSection(symb->st_shndx);
1013 template<class ELFT>
1014 const typename ELFObjectFile<ELFT>::Elf_Ehdr *
1015 ELFObjectFile<ELFT>::getElfHeader() const {
1019 template<class ELFT>
1020 const typename ELFObjectFile<ELFT>::Elf_Shdr *
1021 ELFObjectFile<ELFT>::getElfSection(section_iterator &It) const {
1022 llvm::object::DataRefImpl ShdrRef = It->getRawDataRefImpl();
1023 return reinterpret_cast<const Elf_Shdr *>(ShdrRef.p);
1026 template<class ELFT>
1027 const typename ELFObjectFile<ELFT>::Elf_Sym *
1028 ELFObjectFile<ELFT>::getElfSymbol(symbol_iterator &It) const {
1029 return getSymbol(It->getRawDataRefImpl());
1032 template<class ELFT>
1033 const typename ELFObjectFile<ELFT>::Elf_Sym *
1034 ELFObjectFile<ELFT>::getElfSymbol(uint32_t index) const {
1035 DataRefImpl SymbolData;
1036 SymbolData.d.a = index;
1038 return getSymbol(SymbolData);
1041 template<class ELFT>
1042 error_code ELFObjectFile<ELFT>::getSymbolFileOffset(DataRefImpl Symb,
1043 uint64_t &Result) const {
1044 validateSymbol(Symb);
1045 const Elf_Sym *symb = getSymbol(Symb);
1046 const Elf_Shdr *Section;
1047 switch (getSymbolTableIndex(symb)) {
1048 case ELF::SHN_COMMON:
1049 // Unintialized symbols have no offset in the object file
1050 case ELF::SHN_UNDEF:
1051 Result = UnknownAddressOrSize;
1052 return object_error::success;
1054 Result = symb->st_value;
1055 return object_error::success;
1056 default: Section = getSection(symb);
1059 switch (symb->getType()) {
1060 case ELF::STT_SECTION:
1061 Result = Section ? Section->sh_offset : UnknownAddressOrSize;
1062 return object_error::success;
1064 case ELF::STT_OBJECT:
1065 case ELF::STT_NOTYPE:
1066 Result = symb->st_value +
1067 (Section ? Section->sh_offset : 0);
1068 return object_error::success;
1070 Result = UnknownAddressOrSize;
1071 return object_error::success;
1075 template<class ELFT>
1076 error_code ELFObjectFile<ELFT>::getSymbolAddress(DataRefImpl Symb,
1077 uint64_t &Result) const {
1078 validateSymbol(Symb);
1079 const Elf_Sym *symb = getSymbol(Symb);
1080 const Elf_Shdr *Section;
1081 switch (getSymbolTableIndex(symb)) {
1082 case ELF::SHN_COMMON:
1083 case ELF::SHN_UNDEF:
1084 Result = UnknownAddressOrSize;
1085 return object_error::success;
1087 Result = symb->st_value;
1088 return object_error::success;
1089 default: Section = getSection(symb);
1092 switch (symb->getType()) {
1093 case ELF::STT_SECTION:
1094 Result = Section ? Section->sh_addr : UnknownAddressOrSize;
1095 return object_error::success;
1097 case ELF::STT_OBJECT:
1098 case ELF::STT_NOTYPE:
1100 switch(Header->e_type) {
1103 IsRelocatable = false;
1106 IsRelocatable = true;
1108 Result = symb->st_value;
1110 // Clear the ARM/Thumb indicator flag.
1111 if (Header->e_machine == ELF::EM_ARM)
1114 if (IsRelocatable && Section != 0)
1115 Result += Section->sh_addr;
1116 return object_error::success;
1118 Result = UnknownAddressOrSize;
1119 return object_error::success;
1123 template<class ELFT>
1124 error_code ELFObjectFile<ELFT>::getSymbolAlignment(DataRefImpl Symb,
1125 uint32_t &Res) const {
1127 getSymbolFlags(Symb, flags);
1128 if (flags & SymbolRef::SF_Common) {
1130 getSymbolValue(Symb, Value);
1135 return object_error::success;
1138 template<class ELFT>
1139 error_code ELFObjectFile<ELFT>::getSymbolSize(DataRefImpl Symb,
1140 uint64_t &Result) const {
1141 validateSymbol(Symb);
1142 const Elf_Sym *symb = getSymbol(Symb);
1143 if (symb->st_size == 0)
1144 Result = UnknownAddressOrSize;
1145 Result = symb->st_size;
1146 return object_error::success;
1149 template<class ELFT>
1150 error_code ELFObjectFile<ELFT>::getSymbolNMTypeChar(DataRefImpl Symb,
1151 char &Result) const {
1152 validateSymbol(Symb);
1153 const Elf_Sym *symb = getSymbol(Symb);
1154 const Elf_Shdr *Section = getSection(symb);
1159 switch (Section->sh_type) {
1160 case ELF::SHT_PROGBITS:
1161 case ELF::SHT_DYNAMIC:
1162 switch (Section->sh_flags) {
1163 case (ELF::SHF_ALLOC | ELF::SHF_EXECINSTR):
1165 case (ELF::SHF_ALLOC | ELF::SHF_WRITE):
1167 case ELF::SHF_ALLOC:
1168 case (ELF::SHF_ALLOC | ELF::SHF_MERGE):
1169 case (ELF::SHF_ALLOC | ELF::SHF_MERGE | ELF::SHF_STRINGS):
1173 case ELF::SHT_NOBITS: ret = 'b';
1177 switch (getSymbolTableIndex(symb)) {
1178 case ELF::SHN_UNDEF:
1182 case ELF::SHN_ABS: ret = 'a'; break;
1183 case ELF::SHN_COMMON: ret = 'c'; break;
1186 switch (symb->getBinding()) {
1187 case ELF::STB_GLOBAL: ret = ::toupper(ret); break;
1189 if (getSymbolTableIndex(symb) == ELF::SHN_UNDEF)
1192 if (symb->getType() == ELF::STT_OBJECT)
1198 if (ret == '?' && symb->getType() == ELF::STT_SECTION) {
1200 if (error_code ec = getSymbolName(Symb, name))
1202 Result = StringSwitch<char>(name)
1203 .StartsWith(".debug", 'N')
1204 .StartsWith(".note", 'n')
1206 return object_error::success;
1210 return object_error::success;
1213 template<class ELFT>
1214 error_code ELFObjectFile<ELFT>::getSymbolType(DataRefImpl Symb,
1215 SymbolRef::Type &Result) const {
1216 validateSymbol(Symb);
1217 const Elf_Sym *symb = getSymbol(Symb);
1219 switch (symb->getType()) {
1220 case ELF::STT_NOTYPE:
1221 Result = SymbolRef::ST_Unknown;
1223 case ELF::STT_SECTION:
1224 Result = SymbolRef::ST_Debug;
1227 Result = SymbolRef::ST_File;
1230 Result = SymbolRef::ST_Function;
1232 case ELF::STT_OBJECT:
1233 case ELF::STT_COMMON:
1235 Result = SymbolRef::ST_Data;
1238 Result = SymbolRef::ST_Other;
1241 return object_error::success;
1244 template<class ELFT>
1245 error_code ELFObjectFile<ELFT>::getSymbolFlags(DataRefImpl Symb,
1246 uint32_t &Result) const {
1247 validateSymbol(Symb);
1248 const Elf_Sym *symb = getSymbol(Symb);
1250 Result = SymbolRef::SF_None;
1252 if (symb->getBinding() != ELF::STB_LOCAL)
1253 Result |= SymbolRef::SF_Global;
1255 if (symb->getBinding() == ELF::STB_WEAK)
1256 Result |= SymbolRef::SF_Weak;
1258 if (symb->st_shndx == ELF::SHN_ABS)
1259 Result |= SymbolRef::SF_Absolute;
1261 if (symb->getType() == ELF::STT_FILE ||
1262 symb->getType() == ELF::STT_SECTION)
1263 Result |= SymbolRef::SF_FormatSpecific;
1265 if (getSymbolTableIndex(symb) == ELF::SHN_UNDEF)
1266 Result |= SymbolRef::SF_Undefined;
1268 if (symb->getType() == ELF::STT_COMMON ||
1269 getSymbolTableIndex(symb) == ELF::SHN_COMMON)
1270 Result |= SymbolRef::SF_Common;
1272 if (symb->getType() == ELF::STT_TLS)
1273 Result |= SymbolRef::SF_ThreadLocal;
1275 return object_error::success;
1278 template<class ELFT>
1279 error_code ELFObjectFile<ELFT>::getSymbolSection(DataRefImpl Symb,
1280 section_iterator &Res) const {
1281 validateSymbol(Symb);
1282 const Elf_Sym *symb = getSymbol(Symb);
1283 const Elf_Shdr *sec = getSection(symb);
1285 Res = end_sections();
1288 Sec.p = reinterpret_cast<intptr_t>(sec);
1289 Res = section_iterator(SectionRef(Sec, this));
1291 return object_error::success;
1294 template<class ELFT>
1295 error_code ELFObjectFile<ELFT>::getSymbolValue(DataRefImpl Symb,
1296 uint64_t &Val) const {
1297 validateSymbol(Symb);
1298 const Elf_Sym *symb = getSymbol(Symb);
1299 Val = symb->st_value;
1300 return object_error::success;
1303 template<class ELFT>
1304 error_code ELFObjectFile<ELFT>::getSectionNext(DataRefImpl Sec,
1305 SectionRef &Result) const {
1306 const uint8_t *sec = reinterpret_cast<const uint8_t *>(Sec.p);
1307 sec += Header->e_shentsize;
1308 Sec.p = reinterpret_cast<intptr_t>(sec);
1309 Result = SectionRef(Sec, this);
1310 return object_error::success;
1313 template<class ELFT>
1314 error_code ELFObjectFile<ELFT>::getSectionName(DataRefImpl Sec,
1315 StringRef &Result) const {
1316 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1317 Result = StringRef(getString(dot_shstrtab_sec, sec->sh_name));
1318 return object_error::success;
1321 template<class ELFT>
1322 error_code ELFObjectFile<ELFT>::getSectionAddress(DataRefImpl Sec,
1323 uint64_t &Result) const {
1324 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1325 Result = sec->sh_addr;
1326 return object_error::success;
1329 template<class ELFT>
1330 error_code ELFObjectFile<ELFT>::getSectionSize(DataRefImpl Sec,
1331 uint64_t &Result) const {
1332 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1333 Result = sec->sh_size;
1334 return object_error::success;
1337 template<class ELFT>
1338 error_code ELFObjectFile<ELFT>::getSectionContents(DataRefImpl Sec,
1339 StringRef &Result) const {
1340 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1341 const char *start = (const char*)base() + sec->sh_offset;
1342 Result = StringRef(start, sec->sh_size);
1343 return object_error::success;
1346 template<class ELFT>
1347 error_code ELFObjectFile<ELFT>::getSectionContents(const Elf_Shdr *Sec,
1348 StringRef &Result) const {
1349 const char *start = (const char*)base() + Sec->sh_offset;
1350 Result = StringRef(start, Sec->sh_size);
1351 return object_error::success;
1354 template<class ELFT>
1355 error_code ELFObjectFile<ELFT>::getSectionAlignment(DataRefImpl Sec,
1356 uint64_t &Result) const {
1357 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1358 Result = sec->sh_addralign;
1359 return object_error::success;
1362 template<class ELFT>
1363 error_code ELFObjectFile<ELFT>::isSectionText(DataRefImpl Sec,
1364 bool &Result) const {
1365 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1366 if (sec->sh_flags & ELF::SHF_EXECINSTR)
1370 return object_error::success;
1373 template<class ELFT>
1374 error_code ELFObjectFile<ELFT>::isSectionData(DataRefImpl Sec,
1375 bool &Result) const {
1376 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1377 if (sec->sh_flags & (ELF::SHF_ALLOC | ELF::SHF_WRITE)
1378 && sec->sh_type == ELF::SHT_PROGBITS)
1382 return object_error::success;
1385 template<class ELFT>
1386 error_code ELFObjectFile<ELFT>::isSectionBSS(DataRefImpl Sec,
1387 bool &Result) const {
1388 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1389 if (sec->sh_flags & (ELF::SHF_ALLOC | ELF::SHF_WRITE)
1390 && sec->sh_type == ELF::SHT_NOBITS)
1394 return object_error::success;
1397 template<class ELFT>
1398 error_code ELFObjectFile<ELFT>::isSectionRequiredForExecution(
1399 DataRefImpl Sec, bool &Result) const {
1400 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1401 if (sec->sh_flags & ELF::SHF_ALLOC)
1405 return object_error::success;
1408 template<class ELFT>
1409 error_code ELFObjectFile<ELFT>::isSectionVirtual(DataRefImpl Sec,
1410 bool &Result) const {
1411 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1412 if (sec->sh_type == ELF::SHT_NOBITS)
1416 return object_error::success;
1419 template<class ELFT>
1420 error_code ELFObjectFile<ELFT>::isSectionZeroInit(DataRefImpl Sec,
1421 bool &Result) const {
1422 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1423 // For ELF, all zero-init sections are virtual (that is, they occupy no space
1424 // in the object image) and vice versa.
1425 Result = sec->sh_type == ELF::SHT_NOBITS;
1426 return object_error::success;
1429 template<class ELFT>
1430 error_code ELFObjectFile<ELFT>::isSectionReadOnlyData(DataRefImpl Sec,
1431 bool &Result) const {
1432 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1433 if (sec->sh_flags & ELF::SHF_WRITE || sec->sh_flags & ELF::SHF_EXECINSTR)
1437 return object_error::success;
1440 template<class ELFT>
1441 error_code ELFObjectFile<ELFT>::sectionContainsSymbol(DataRefImpl Sec,
1443 bool &Result) const {
1444 validateSymbol(Symb);
1446 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1447 const Elf_Sym *symb = getSymbol(Symb);
1449 unsigned shndx = symb->st_shndx;
1450 bool Reserved = shndx >= ELF::SHN_LORESERVE
1451 && shndx <= ELF::SHN_HIRESERVE;
1453 Result = !Reserved && (sec == getSection(symb->st_shndx));
1454 return object_error::success;
1457 template<class ELFT>
1459 ELFObjectFile<ELFT>::getSectionRelBegin(DataRefImpl Sec) const {
1460 DataRefImpl RelData;
1461 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1462 typename RelocMap_t::const_iterator ittr = SectionRelocMap.find(sec);
1463 if (sec != 0 && ittr != SectionRelocMap.end()) {
1464 RelData.w.a = getSection(ittr->second[0])->sh_info;
1465 RelData.w.b = ittr->second[0];
1468 return relocation_iterator(RelocationRef(RelData, this));
1471 template<class ELFT>
1473 ELFObjectFile<ELFT>::getSectionRelEnd(DataRefImpl Sec) const {
1474 DataRefImpl RelData;
1475 const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
1476 typename RelocMap_t::const_iterator ittr = SectionRelocMap.find(sec);
1477 if (sec != 0 && ittr != SectionRelocMap.end()) {
1478 // Get the index of the last relocation section for this section.
1479 std::size_t relocsecindex = ittr->second[ittr->second.size() - 1];
1480 const Elf_Shdr *relocsec = getSection(relocsecindex);
1481 RelData.w.a = relocsec->sh_info;
1482 RelData.w.b = relocsecindex;
1483 RelData.w.c = relocsec->sh_size / relocsec->sh_entsize;
1485 return relocation_iterator(RelocationRef(RelData, this));
1489 template<class ELFT>
1490 error_code ELFObjectFile<ELFT>::getRelocationNext(DataRefImpl Rel,
1491 RelocationRef &Result) const {
1493 const Elf_Shdr *relocsec = getSection(Rel.w.b);
1494 if (Rel.w.c >= (relocsec->sh_size / relocsec->sh_entsize)) {
1495 // We have reached the end of the relocations for this section. See if there
1496 // is another relocation section.
1497 typename RelocMap_t::mapped_type relocseclist =
1498 SectionRelocMap.lookup(getSection(Rel.w.a));
1500 // Do a binary search for the current reloc section index (which must be
1501 // present). Then get the next one.
1502 typename RelocMap_t::mapped_type::const_iterator loc =
1503 std::lower_bound(relocseclist.begin(), relocseclist.end(), Rel.w.b);
1506 // If there is no next one, don't do anything. The ++Rel.w.c above sets Rel
1507 // to the end iterator.
1508 if (loc != relocseclist.end()) {
1513 Result = RelocationRef(Rel, this);
1514 return object_error::success;
1517 template<class ELFT>
1518 error_code ELFObjectFile<ELFT>::getRelocationSymbol(DataRefImpl Rel,
1519 SymbolRef &Result) const {
1521 const Elf_Shdr *sec = getSection(Rel.w.b);
1522 switch (sec->sh_type) {
1524 report_fatal_error("Invalid section type in Rel!");
1525 case ELF::SHT_REL : {
1526 symbolIdx = getRel(Rel)->getSymbol(isMips64EL());
1529 case ELF::SHT_RELA : {
1530 symbolIdx = getRela(Rel)->getSymbol(isMips64EL());
1534 DataRefImpl SymbolData;
1535 IndexMap_t::const_iterator it = SymbolTableSectionsIndexMap.find(sec->sh_link);
1536 if (it == SymbolTableSectionsIndexMap.end())
1537 report_fatal_error("Relocation symbol table not found!");
1538 SymbolData.d.a = symbolIdx;
1539 SymbolData.d.b = it->second;
1540 Result = SymbolRef(SymbolData, this);
1541 return object_error::success;
1544 template<class ELFT>
1545 error_code ELFObjectFile<ELFT>::getRelocationAddress(DataRefImpl Rel,
1546 uint64_t &Result) const {
1547 assert((Header->e_type == ELF::ET_EXEC || Header->e_type == ELF::ET_DYN) &&
1548 "Only executable and shared objects files have addresses");
1549 Result = getROffset(Rel);
1550 return object_error::success;
1553 template<class ELFT>
1554 error_code ELFObjectFile<ELFT>::getRelocationOffset(DataRefImpl Rel,
1555 uint64_t &Result) const {
1556 assert(Header->e_type == ELF::ET_REL &&
1557 "Only relocatable object files have relocation offsets");
1558 Result = getROffset(Rel);
1559 return object_error::success;
1562 template<class ELFT>
1563 uint64_t ELFObjectFile<ELFT>::getROffset(DataRefImpl Rel) const {
1564 const Elf_Shdr *sec = getSection(Rel.w.b);
1565 switch (sec->sh_type) {
1567 report_fatal_error("Invalid section type in Rel!");
1569 return getRel(Rel)->r_offset;
1571 return getRela(Rel)->r_offset;
1575 template<class ELFT>
1576 error_code ELFObjectFile<ELFT>::getRelocationType(DataRefImpl Rel,
1577 uint64_t &Result) const {
1578 const Elf_Shdr *sec = getSection(Rel.w.b);
1579 switch (sec->sh_type) {
1581 report_fatal_error("Invalid section type in Rel!");
1582 case ELF::SHT_REL : {
1583 Result = getRel(Rel)->getType(isMips64EL());
1586 case ELF::SHT_RELA : {
1587 Result = getRela(Rel)->getType(isMips64EL());
1591 return object_error::success;
1594 #define LLVM_ELF_SWITCH_RELOC_TYPE_NAME(enum) \
1595 case ELF::enum: Res = #enum; break;
1597 template<class ELFT>
1598 StringRef ELFObjectFile<ELFT>::getRelocationTypeName(uint32_t Type) const {
1599 StringRef Res = "Unknown";
1600 switch (Header->e_machine) {
1601 case ELF::EM_X86_64:
1603 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_NONE);
1604 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_64);
1605 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC32);
1606 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOT32);
1607 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PLT32);
1608 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_COPY);
1609 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GLOB_DAT);
1610 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_JUMP_SLOT);
1611 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_RELATIVE);
1612 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPCREL);
1613 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_32);
1614 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_32S);
1615 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_16);
1616 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC16);
1617 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_8);
1618 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC8);
1619 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_DTPMOD64);
1620 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_DTPOFF64);
1621 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TPOFF64);
1622 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSGD);
1623 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSLD);
1624 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_DTPOFF32);
1625 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTTPOFF);
1626 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TPOFF32);
1627 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PC64);
1628 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTOFF64);
1629 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPC32);
1630 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOT64);
1631 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPCREL64);
1632 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPC64);
1633 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPLT64);
1634 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_PLTOFF64);
1635 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_SIZE32);
1636 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_SIZE64);
1637 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_GOTPC32_TLSDESC);
1638 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSDESC_CALL);
1639 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_TLSDESC);
1640 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_X86_64_IRELATIVE);
1646 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_NONE);
1647 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_32);
1648 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PC32);
1649 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GOT32);
1650 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PLT32);
1651 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_COPY);
1652 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GLOB_DAT);
1653 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_JUMP_SLOT);
1654 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_RELATIVE);
1655 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GOTOFF);
1656 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_GOTPC);
1657 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_32PLT);
1658 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_TPOFF);
1659 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_IE);
1660 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GOTIE);
1661 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LE);
1662 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD);
1663 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM);
1664 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_16);
1665 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PC16);
1666 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_8);
1667 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_PC8);
1668 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_32);
1669 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_PUSH);
1670 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_CALL);
1671 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GD_POP);
1672 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_32);
1673 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_PUSH);
1674 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_CALL);
1675 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDM_POP);
1676 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LDO_32);
1677 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_IE_32);
1678 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_LE_32);
1679 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DTPMOD32);
1680 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DTPOFF32);
1681 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_TPOFF32);
1682 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_GOTDESC);
1683 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DESC_CALL);
1684 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_TLS_DESC);
1685 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_386_IRELATIVE);
1691 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_NONE);
1692 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_16);
1693 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_32);
1694 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_REL32);
1695 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_26);
1696 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_HI16);
1697 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_LO16);
1698 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GPREL16);
1699 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_LITERAL);
1700 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GOT16);
1701 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_PC16);
1702 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_CALL16);
1703 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GPREL32);
1704 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_SHIFT5);
1705 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_SHIFT6);
1706 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_64);
1707 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GOT_DISP);
1708 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GOT_PAGE);
1709 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GOT_OFST);
1710 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GOT_HI16);
1711 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GOT_LO16);
1712 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_SUB);
1713 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_INSERT_A);
1714 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_INSERT_B);
1715 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_DELETE);
1716 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_HIGHER);
1717 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_HIGHEST);
1718 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_CALL_HI16);
1719 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_CALL_LO16);
1720 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_SCN_DISP);
1721 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_REL16);
1722 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_ADD_IMMEDIATE);
1723 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_PJUMP);
1724 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_RELGOT);
1725 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_JALR);
1726 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_DTPMOD32);
1727 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_DTPREL32);
1728 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_DTPMOD64);
1729 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_DTPREL64);
1730 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_GD);
1731 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_LDM);
1732 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_DTPREL_HI16);
1733 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_DTPREL_LO16);
1734 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_GOTTPREL);
1735 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_TPREL32);
1736 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_TPREL64);
1737 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_TPREL_HI16);
1738 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_TLS_TPREL_LO16);
1739 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_GLOB_DAT);
1740 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_COPY);
1741 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_JUMP_SLOT);
1742 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_MIPS_NUM);
1746 case ELF::EM_AARCH64:
1748 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_NONE);
1749 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_ABS64);
1750 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_ABS32);
1751 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_ABS16);
1752 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_PREL64);
1753 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_PREL32);
1754 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_PREL16);
1755 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_UABS_G0);
1756 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_UABS_G0_NC);
1757 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_UABS_G1);
1758 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_UABS_G1_NC);
1759 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_UABS_G2);
1760 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_UABS_G2_NC);
1761 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_UABS_G3);
1762 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_SABS_G0);
1763 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_SABS_G1);
1764 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_MOVW_SABS_G2);
1765 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_LD_PREL_LO19);
1766 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_ADR_PREL_LO21);
1767 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_ADR_PREL_PG_HI21);
1768 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_ADD_ABS_LO12_NC);
1769 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_LDST8_ABS_LO12_NC);
1770 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TSTBR14);
1771 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_CONDBR19);
1772 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_JUMP26);
1773 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_CALL26);
1774 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_LDST16_ABS_LO12_NC);
1775 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_LDST32_ABS_LO12_NC);
1776 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_LDST64_ABS_LO12_NC);
1777 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_LDST128_ABS_LO12_NC);
1778 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_ADR_GOT_PAGE);
1779 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_LD64_GOT_LO12_NC);
1780 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_MOVW_DTPREL_G2);
1781 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_MOVW_DTPREL_G1);
1782 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_MOVW_DTPREL_G1_NC);
1783 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_MOVW_DTPREL_G0);
1784 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_MOVW_DTPREL_G0_NC);
1785 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_ADD_DTPREL_HI12);
1786 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_ADD_DTPREL_LO12);
1787 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_ADD_DTPREL_LO12_NC);
1788 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_LDST8_DTPREL_LO12);
1789 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_LDST8_DTPREL_LO12_NC);
1790 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_LDST16_DTPREL_LO12);
1791 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_LDST16_DTPREL_LO12_NC);
1792 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_LDST32_DTPREL_LO12);
1793 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_LDST32_DTPREL_LO12_NC);
1794 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_LDST64_DTPREL_LO12);
1795 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLD_LDST64_DTPREL_LO12_NC);
1796 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSIE_MOVW_GOTTPREL_G1);
1797 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC);
1798 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21);
1799 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC);
1800 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSIE_LD_GOTTPREL_PREL19);
1801 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_MOVW_TPREL_G2);
1802 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_MOVW_TPREL_G1);
1803 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_MOVW_TPREL_G1_NC);
1804 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_MOVW_TPREL_G0);
1805 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_MOVW_TPREL_G0_NC);
1806 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_ADD_TPREL_HI12);
1807 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_ADD_TPREL_LO12);
1808 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_ADD_TPREL_LO12_NC);
1809 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_LDST8_TPREL_LO12);
1810 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_LDST8_TPREL_LO12_NC);
1811 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_LDST16_TPREL_LO12);
1812 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_LDST16_TPREL_LO12_NC);
1813 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_LDST32_TPREL_LO12);
1814 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_LDST32_TPREL_LO12_NC);
1815 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_LDST64_TPREL_LO12);
1816 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSLE_LDST64_TPREL_LO12_NC);
1817 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSDESC_ADR_PAGE);
1818 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSDESC_LD64_LO12_NC);
1819 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSDESC_ADD_LO12_NC);
1820 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_AARCH64_TLSDESC_CALL);
1826 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_NONE);
1827 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PC24);
1828 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS32);
1829 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_REL32);
1830 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_PC_G0);
1831 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS16);
1832 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS12);
1833 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_ABS5);
1834 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS8);
1835 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_SBREL32);
1836 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_CALL);
1837 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_PC8);
1838 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_BREL_ADJ);
1839 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_DESC);
1840 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_SWI8);
1841 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_XPC25);
1842 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_XPC22);
1843 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_DTPMOD32);
1844 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_DTPOFF32);
1845 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_TPOFF32);
1846 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_COPY);
1847 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GLOB_DAT);
1848 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_JUMP_SLOT);
1849 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_RELATIVE);
1850 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOTOFF32);
1851 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_BASE_PREL);
1852 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOT_BREL);
1853 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PLT32);
1854 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_CALL);
1855 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_JUMP24);
1856 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP24);
1857 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_BASE_ABS);
1858 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PCREL_7_0);
1859 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PCREL_15_8);
1860 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PCREL_23_15);
1861 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_SBREL_11_0_NC);
1862 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SBREL_19_12_NC);
1863 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SBREL_27_20_CK);
1864 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TARGET1);
1865 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_SBREL31);
1866 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_V4BX);
1867 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TARGET2);
1868 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PREL31);
1869 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVW_ABS_NC);
1870 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVT_ABS);
1871 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVW_PREL_NC);
1872 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVT_PREL);
1873 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVW_ABS_NC);
1874 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVT_ABS);
1875 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVW_PREL_NC);
1876 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVT_PREL);
1877 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP19);
1878 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP6);
1879 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_ALU_PREL_11_0);
1880 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_PC12);
1881 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ABS32_NOI);
1882 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_REL32_NOI);
1883 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G0_NC);
1884 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G0);
1885 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G1_NC);
1886 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G1);
1887 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_PC_G2);
1888 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_PC_G1);
1889 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_PC_G2);
1890 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_PC_G0);
1891 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_PC_G1);
1892 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_PC_G2);
1893 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_PC_G0);
1894 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_PC_G1);
1895 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_PC_G2);
1896 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G0_NC);
1897 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G0);
1898 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G1_NC);
1899 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G1);
1900 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ALU_SB_G2);
1901 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_SB_G0);
1902 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_SB_G1);
1903 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDR_SB_G2);
1904 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_SB_G0);
1905 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_SB_G1);
1906 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDRS_SB_G2);
1907 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_SB_G0);
1908 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_SB_G1);
1909 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_LDC_SB_G2);
1910 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVW_BREL_NC);
1911 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVT_BREL);
1912 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_MOVW_BREL);
1913 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVW_BREL_NC);
1914 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVT_BREL);
1915 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_MOVW_BREL);
1916 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_GOTDESC);
1917 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_CALL);
1918 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_DESCSEQ);
1919 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_TLS_CALL);
1920 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PLT32_ABS);
1921 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOT_ABS);
1922 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOT_PREL);
1923 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOT_BREL12);
1924 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOTOFF12);
1925 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GOTRELAX);
1926 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GNU_VTENTRY);
1927 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_GNU_VTINHERIT);
1928 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP11);
1929 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_JUMP8);
1930 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_GD32);
1931 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LDM32);
1932 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LDO32);
1933 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_IE32);
1934 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LE32);
1935 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LDO12);
1936 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_LE12);
1937 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_TLS_IE12GP);
1938 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_0);
1939 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_1);
1940 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_2);
1941 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_3);
1942 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_4);
1943 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_5);
1944 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_6);
1945 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_7);
1946 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_8);
1947 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_9);
1948 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_10);
1949 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_11);
1950 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_12);
1951 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_13);
1952 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_14);
1953 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_PRIVATE_15);
1954 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_ME_TOO);
1955 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_TLS_DESCSEQ16);
1956 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_ARM_THM_TLS_DESCSEQ32);
1960 case ELF::EM_HEXAGON:
1962 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_NONE);
1963 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B22_PCREL);
1964 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B15_PCREL);
1965 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B7_PCREL);
1966 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_LO16);
1967 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_HI16);
1968 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_32);
1969 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_16);
1970 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_8);
1971 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GPREL16_0);
1972 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GPREL16_1);
1973 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GPREL16_2);
1974 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GPREL16_3);
1975 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_HL16);
1976 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B13_PCREL);
1977 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B9_PCREL);
1978 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B32_PCREL_X);
1979 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_32_6_X);
1980 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B22_PCREL_X);
1981 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B15_PCREL_X);
1982 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B13_PCREL_X);
1983 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B9_PCREL_X);
1984 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_B7_PCREL_X);
1985 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_16_X);
1986 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_12_X);
1987 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_11_X);
1988 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_10_X);
1989 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_9_X);
1990 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_8_X);
1991 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_7_X);
1992 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_6_X);
1993 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_32_PCREL);
1994 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_COPY);
1995 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GLOB_DAT);
1996 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_JMP_SLOT);
1997 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_RELATIVE);
1998 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_PLT_B22_PCREL);
1999 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_LO16);
2000 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_HI16);
2001 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_32);
2002 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_LO16);
2003 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_HI16);
2004 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_32);
2005 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_16);
2006 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPMOD_32);
2007 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_LO16);
2008 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_HI16);
2009 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_32);
2010 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_16);
2011 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_PLT_B22_PCREL);
2012 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_LO16);
2013 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_HI16);
2014 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_32);
2015 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_16);
2016 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_LO16);
2017 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_HI16);
2018 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_32);
2019 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_LO16);
2020 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_HI16);
2021 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_32);
2022 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_16);
2023 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_LO16);
2024 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_HI16);
2025 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_32);
2026 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_16);
2027 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_6_PCREL_X);
2028 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_32_6_X);
2029 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_16_X);
2030 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOTREL_11_X);
2031 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_32_6_X);
2032 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_16_X);
2033 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GOT_11_X);
2034 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_32_6_X);
2035 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_16_X);
2036 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_DTPREL_11_X);
2037 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_32_6_X);
2038 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_16_X);
2039 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_GD_GOT_11_X);
2040 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_32_6_X);
2041 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_16_X);
2042 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_32_6_X);
2043 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_16_X);
2044 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_IE_GOT_11_X);
2045 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_32_6_X);
2046 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_16_X);
2047 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_HEX_TPREL_11_X);
2053 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_NONE);
2054 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR32);
2055 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR24);
2056 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR16);
2057 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR16_LO);
2058 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR16_HI);
2059 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR16_HA);
2060 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR14);
2061 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR14_BRTAKEN);
2062 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_ADDR14_BRNTAKEN);
2063 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_REL24);
2064 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_REL14);
2065 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_REL14_BRTAKEN);
2066 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_REL14_BRNTAKEN);
2067 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_REL32);
2068 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_TPREL16_LO);
2069 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC_TPREL16_HA);
2075 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_NONE);
2076 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR32);
2077 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR24);
2078 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR16);
2079 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR16_LO);
2080 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR16_HI);
2081 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR16_HA);
2082 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR14);
2083 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR14_BRTAKEN);
2084 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR14_BRNTAKEN);
2085 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_REL24);
2086 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_REL14);
2087 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_REL14_BRTAKEN);
2088 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_REL14_BRNTAKEN);
2089 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_REL32);
2090 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR64);
2091 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR16_HIGHER);
2092 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR16_HIGHEST);
2093 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_REL64);
2094 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TOC16);
2095 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TOC16_LO);
2096 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TOC16_HA);
2097 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TOC);
2098 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR16_DS);
2099 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_ADDR16_LO_DS);
2100 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TOC16_DS);
2101 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TOC16_LO_DS);
2102 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TLS);
2103 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TPREL16_LO);
2104 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TPREL16_HA);
2105 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_DTPREL16_LO);
2106 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_DTPREL16_HA);
2107 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_GOT_TLSGD16_LO);
2108 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_GOT_TLSGD16_HA);
2109 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_GOT_TLSLD16_LO);
2110 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_GOT_TLSLD16_HA);
2111 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_GOT_TPREL16_LO_DS);
2112 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_GOT_TPREL16_HA);
2113 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TLSGD);
2114 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_PPC64_TLSLD);
2120 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_NONE);
2121 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_8);
2122 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_12);
2123 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_16);
2124 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_32);
2125 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PC32);
2126 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOT12);
2127 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOT32);
2128 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PLT32);
2129 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_COPY);
2130 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GLOB_DAT);
2131 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_JMP_SLOT);
2132 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_RELATIVE);
2133 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTOFF);
2134 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTPC);
2135 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOT16);
2136 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PC16);
2137 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PC16DBL);
2138 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PLT16DBL);
2139 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PC32DBL);
2140 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PLT32DBL);
2141 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTPCDBL);
2142 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_64);
2143 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PC64);
2144 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOT64);
2145 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PLT64);
2146 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTENT);
2147 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTOFF16);
2148 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTOFF64);
2149 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTPLT12);
2150 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTPLT16);
2151 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTPLT32);
2152 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTPLT64);
2153 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTPLTENT);
2154 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PLTOFF16);
2155 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PLTOFF32);
2156 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_PLTOFF64);
2157 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_LOAD);
2158 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_GDCALL);
2159 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_LDCALL);
2160 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_GD32);
2161 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_GD64);
2162 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_GOTIE12);
2163 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_GOTIE32);
2164 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_GOTIE64);
2165 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_LDM32);
2166 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_LDM64);
2167 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_IE32);
2168 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_IE64);
2169 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_IEENT);
2170 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_LE32);
2171 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_LE64);
2172 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_LDO32);
2173 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_LDO64);
2174 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_DTPMOD);
2175 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_DTPOFF);
2176 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_TPOFF);
2177 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_20);
2178 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOT20);
2179 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_GOTPLT20);
2180 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_TLS_GOTIE20);
2181 LLVM_ELF_SWITCH_RELOC_TYPE_NAME(R_390_IRELATIVE);
2190 #undef LLVM_ELF_SWITCH_RELOC_TYPE_NAME
2192 template<class ELFT>
2193 error_code ELFObjectFile<ELFT>::getRelocationTypeName(
2194 DataRefImpl Rel, SmallVectorImpl<char> &Result) const {
2195 const Elf_Shdr *sec = getSection(Rel.w.b);
2197 switch (sec->sh_type) {
2199 return object_error::parse_failed;
2200 case ELF::SHT_REL : {
2201 type = getRel(Rel)->getType(isMips64EL());
2204 case ELF::SHT_RELA : {
2205 type = getRela(Rel)->getType(isMips64EL());
2210 if (!isMips64EL()) {
2211 StringRef Name = getRelocationTypeName(type);
2212 Result.append(Name.begin(), Name.end());
2214 uint8_t Type1 = (type >> 0) & 0xFF;
2215 uint8_t Type2 = (type >> 8) & 0xFF;
2216 uint8_t Type3 = (type >> 16) & 0xFF;
2218 // Concat all three relocation type names.
2219 StringRef Name = getRelocationTypeName(Type1);
2220 Result.append(Name.begin(), Name.end());
2222 Name = getRelocationTypeName(Type2);
2223 Result.append(1, '/');
2224 Result.append(Name.begin(), Name.end());
2226 Name = getRelocationTypeName(Type3);
2227 Result.append(1, '/');
2228 Result.append(Name.begin(), Name.end());
2231 return object_error::success;
2234 template<class ELFT>
2235 error_code ELFObjectFile<ELFT>::getRelocationAddend(
2236 DataRefImpl Rel, int64_t &Result) const {
2237 const Elf_Shdr *sec = getSection(Rel.w.b);
2238 switch (sec->sh_type) {
2240 report_fatal_error("Invalid section type in Rel!");
2241 case ELF::SHT_REL : {
2243 return object_error::success;
2245 case ELF::SHT_RELA : {
2246 Result = getRela(Rel)->r_addend;
2247 return object_error::success;
2252 template<class ELFT>
2253 error_code ELFObjectFile<ELFT>::getRelocationValueString(
2254 DataRefImpl Rel, SmallVectorImpl<char> &Result) const {
2255 const Elf_Shdr *sec = getSection(Rel.w.b);
2259 uint16_t symbol_index = 0;
2260 switch (sec->sh_type) {
2262 return object_error::parse_failed;
2263 case ELF::SHT_REL: {
2264 type = getRel(Rel)->getType(isMips64EL());
2265 symbol_index = getRel(Rel)->getSymbol(isMips64EL());
2266 // TODO: Read implicit addend from section data.
2269 case ELF::SHT_RELA: {
2270 type = getRela(Rel)->getType(isMips64EL());
2271 symbol_index = getRela(Rel)->getSymbol(isMips64EL());
2272 addend = getRela(Rel)->r_addend;
2276 const Elf_Sym *symb = getEntry<Elf_Sym>(sec->sh_link, symbol_index);
2278 if (error_code ec = getSymbolName(getSection(sec->sh_link), symb, symname))
2280 switch (Header->e_machine) {
2281 case ELF::EM_X86_64:
2283 case ELF::R_X86_64_PC8:
2284 case ELF::R_X86_64_PC16:
2285 case ELF::R_X86_64_PC32: {
2287 raw_string_ostream fmt(fmtbuf);
2288 fmt << symname << (addend < 0 ? "" : "+") << addend << "-P";
2290 Result.append(fmtbuf.begin(), fmtbuf.end());
2293 case ELF::R_X86_64_8:
2294 case ELF::R_X86_64_16:
2295 case ELF::R_X86_64_32:
2296 case ELF::R_X86_64_32S:
2297 case ELF::R_X86_64_64: {
2299 raw_string_ostream fmt(fmtbuf);
2300 fmt << symname << (addend < 0 ? "" : "+") << addend;
2302 Result.append(fmtbuf.begin(), fmtbuf.end());
2309 case ELF::EM_AARCH64:
2311 case ELF::EM_HEXAGON:
2318 Result.append(res.begin(), res.end());
2319 return object_error::success;
2322 // Verify that the last byte in the string table in a null.
2323 template<class ELFT>
2324 void ELFObjectFile<ELFT>::VerifyStrTab(const Elf_Shdr *sh) const {
2325 const char *strtab = (const char*)base() + sh->sh_offset;
2326 if (strtab[sh->sh_size - 1] != 0)
2327 // FIXME: Proper error handling.
2328 report_fatal_error("String table must end with a null terminator!");
2331 template<class ELFT>
2332 ELFObjectFile<ELFT>::ELFObjectFile(MemoryBuffer *Object, error_code &ec)
2333 : ObjectFile(getELFType(
2334 static_cast<endianness>(ELFT::TargetEndianness) == support::little,
2337 , isDyldELFObject(false)
2338 , SectionHeaderTable(0)
2339 , dot_shstrtab_sec(0)
2342 , dot_dynamic_sec(0)
2343 , dot_gnu_version_sec(0)
2344 , dot_gnu_version_r_sec(0)
2345 , dot_gnu_version_d_sec(0)
2349 const uint64_t FileSize = Data->getBufferSize();
2351 if (sizeof(Elf_Ehdr) > FileSize)
2352 // FIXME: Proper error handling.
2353 report_fatal_error("File too short!");
2355 Header = reinterpret_cast<const Elf_Ehdr *>(base());
2357 if (Header->e_shoff == 0)
2360 const uint64_t SectionTableOffset = Header->e_shoff;
2362 if (SectionTableOffset + sizeof(Elf_Shdr) > FileSize)
2363 // FIXME: Proper error handling.
2364 report_fatal_error("Section header table goes past end of file!");
2366 // The getNumSections() call below depends on SectionHeaderTable being set.
2367 SectionHeaderTable =
2368 reinterpret_cast<const Elf_Shdr *>(base() + SectionTableOffset);
2369 const uint64_t SectionTableSize = getNumSections() * Header->e_shentsize;
2371 if (SectionTableOffset + SectionTableSize > FileSize)
2372 // FIXME: Proper error handling.
2373 report_fatal_error("Section table goes past end of file!");
2375 // To find the symbol tables we walk the section table to find SHT_SYMTAB.
2376 const Elf_Shdr* SymbolTableSectionHeaderIndex = 0;
2377 const Elf_Shdr* sh = SectionHeaderTable;
2379 // Reserve SymbolTableSections[0] for .dynsym
2380 SymbolTableSections.push_back(NULL);
2382 for (uint64_t i = 0, e = getNumSections(); i != e; ++i) {
2383 switch (sh->sh_type) {
2384 case ELF::SHT_SYMTAB_SHNDX: {
2385 if (SymbolTableSectionHeaderIndex)
2386 // FIXME: Proper error handling.
2387 report_fatal_error("More than one .symtab_shndx!");
2388 SymbolTableSectionHeaderIndex = sh;
2391 case ELF::SHT_SYMTAB: {
2392 SymbolTableSectionsIndexMap[i] = SymbolTableSections.size();
2393 SymbolTableSections.push_back(sh);
2396 case ELF::SHT_DYNSYM: {
2397 if (SymbolTableSections[0] != NULL)
2398 // FIXME: Proper error handling.
2399 report_fatal_error("More than one .dynsym!");
2400 SymbolTableSectionsIndexMap[i] = 0;
2401 SymbolTableSections[0] = sh;
2405 case ELF::SHT_RELA: {
2406 SectionRelocMap[getSection(sh->sh_info)].push_back(i);
2409 case ELF::SHT_DYNAMIC: {
2410 if (dot_dynamic_sec != NULL)
2411 // FIXME: Proper error handling.
2412 report_fatal_error("More than one .dynamic!");
2413 dot_dynamic_sec = sh;
2416 case ELF::SHT_GNU_versym: {
2417 if (dot_gnu_version_sec != NULL)
2418 // FIXME: Proper error handling.
2419 report_fatal_error("More than one .gnu.version section!");
2420 dot_gnu_version_sec = sh;
2423 case ELF::SHT_GNU_verdef: {
2424 if (dot_gnu_version_d_sec != NULL)
2425 // FIXME: Proper error handling.
2426 report_fatal_error("More than one .gnu.version_d section!");
2427 dot_gnu_version_d_sec = sh;
2430 case ELF::SHT_GNU_verneed: {
2431 if (dot_gnu_version_r_sec != NULL)
2432 // FIXME: Proper error handling.
2433 report_fatal_error("More than one .gnu.version_r section!");
2434 dot_gnu_version_r_sec = sh;
2441 // Sort section relocation lists by index.
2442 for (typename RelocMap_t::iterator i = SectionRelocMap.begin(),
2443 e = SectionRelocMap.end(); i != e; ++i) {
2444 std::sort(i->second.begin(), i->second.end());
2447 // Get string table sections.
2448 dot_shstrtab_sec = getSection(getStringTableIndex());
2449 if (dot_shstrtab_sec) {
2450 // Verify that the last byte in the string table in a null.
2451 VerifyStrTab(dot_shstrtab_sec);
2454 // Merge this into the above loop.
2455 for (const char *i = reinterpret_cast<const char *>(SectionHeaderTable),
2456 *e = i + getNumSections() * Header->e_shentsize;
2457 i != e; i += Header->e_shentsize) {
2458 const Elf_Shdr *sh = reinterpret_cast<const Elf_Shdr*>(i);
2459 if (sh->sh_type == ELF::SHT_STRTAB) {
2460 StringRef SectionName(getString(dot_shstrtab_sec, sh->sh_name));
2461 if (SectionName == ".strtab") {
2462 if (dot_strtab_sec != 0)
2463 // FIXME: Proper error handling.
2464 report_fatal_error("Already found section named .strtab!");
2465 dot_strtab_sec = sh;
2466 VerifyStrTab(dot_strtab_sec);
2467 } else if (SectionName == ".dynstr") {
2468 if (dot_dynstr_sec != 0)
2469 // FIXME: Proper error handling.
2470 report_fatal_error("Already found section named .dynstr!");
2471 dot_dynstr_sec = sh;
2472 VerifyStrTab(dot_dynstr_sec);
2477 // Build symbol name side-mapping if there is one.
2478 if (SymbolTableSectionHeaderIndex) {
2479 const Elf_Word *ShndxTable = reinterpret_cast<const Elf_Word*>(base() +
2480 SymbolTableSectionHeaderIndex->sh_offset);
2482 for (symbol_iterator si = begin_symbols(),
2483 se = end_symbols(); si != se; si.increment(ec)) {
2485 report_fatal_error("Fewer extended symbol table entries than symbols!");
2486 if (*ShndxTable != ELF::SHN_UNDEF)
2487 ExtendedSymbolTable[getSymbol(si->getRawDataRefImpl())] = *ShndxTable;
2493 // Get the symbol table index in the symtab section given a symbol
2494 template<class ELFT>
2495 uint64_t ELFObjectFile<ELFT>::getSymbolIndex(const Elf_Sym *Sym) const {
2496 assert(SymbolTableSections.size() == 1 && "Only one symbol table supported!");
2497 const Elf_Shdr *SymTab = *SymbolTableSections.begin();
2498 uintptr_t SymLoc = uintptr_t(Sym);
2499 uintptr_t SymTabLoc = uintptr_t(base() + SymTab->sh_offset);
2500 assert(SymLoc > SymTabLoc && "Symbol not in symbol table!");
2501 uint64_t SymOffset = SymLoc - SymTabLoc;
2502 assert(SymOffset % SymTab->sh_entsize == 0 &&
2503 "Symbol not multiple of symbol size!");
2504 return SymOffset / SymTab->sh_entsize;
2507 template<class ELFT>
2508 symbol_iterator ELFObjectFile<ELFT>::begin_symbols() const {
2509 DataRefImpl SymbolData;
2510 if (SymbolTableSections.size() <= 1) {
2511 SymbolData.d.a = std::numeric_limits<uint32_t>::max();
2512 SymbolData.d.b = std::numeric_limits<uint32_t>::max();
2514 SymbolData.d.a = 1; // The 0th symbol in ELF is fake.
2515 SymbolData.d.b = 1; // The 0th table is .dynsym
2517 return symbol_iterator(SymbolRef(SymbolData, this));
2520 template<class ELFT>
2521 symbol_iterator ELFObjectFile<ELFT>::end_symbols() const {
2522 DataRefImpl SymbolData;
2523 SymbolData.d.a = std::numeric_limits<uint32_t>::max();
2524 SymbolData.d.b = std::numeric_limits<uint32_t>::max();
2525 return symbol_iterator(SymbolRef(SymbolData, this));
2528 template<class ELFT>
2529 symbol_iterator ELFObjectFile<ELFT>::begin_dynamic_symbols() const {
2530 DataRefImpl SymbolData;
2531 if (SymbolTableSections[0] == NULL) {
2532 SymbolData.d.a = std::numeric_limits<uint32_t>::max();
2533 SymbolData.d.b = std::numeric_limits<uint32_t>::max();
2535 SymbolData.d.a = 1; // The 0th symbol in ELF is fake.
2536 SymbolData.d.b = 0; // The 0th table is .dynsym
2538 return symbol_iterator(SymbolRef(SymbolData, this));
2541 template<class ELFT>
2542 symbol_iterator ELFObjectFile<ELFT>::end_dynamic_symbols() const {
2543 DataRefImpl SymbolData;
2544 SymbolData.d.a = std::numeric_limits<uint32_t>::max();
2545 SymbolData.d.b = std::numeric_limits<uint32_t>::max();
2546 return symbol_iterator(SymbolRef(SymbolData, this));
2549 template<class ELFT>
2550 section_iterator ELFObjectFile<ELFT>::begin_sections() const {
2552 ret.p = reinterpret_cast<intptr_t>(base() + Header->e_shoff);
2553 return section_iterator(SectionRef(ret, this));
2556 template<class ELFT>
2557 section_iterator ELFObjectFile<ELFT>::end_sections() const {
2559 ret.p = reinterpret_cast<intptr_t>(base()
2561 + (Header->e_shentsize*getNumSections()));
2562 return section_iterator(SectionRef(ret, this));
2565 template<class ELFT>
2566 typename ELFObjectFile<ELFT>::Elf_Dyn_iterator
2567 ELFObjectFile<ELFT>::begin_dynamic_table() const {
2568 if (dot_dynamic_sec)
2569 return Elf_Dyn_iterator(dot_dynamic_sec->sh_entsize,
2570 (const char *)base() + dot_dynamic_sec->sh_offset);
2571 return Elf_Dyn_iterator(0, 0);
2574 template<class ELFT>
2575 typename ELFObjectFile<ELFT>::Elf_Dyn_iterator
2576 ELFObjectFile<ELFT>::end_dynamic_table(bool NULLEnd) const {
2577 if (dot_dynamic_sec) {
2578 Elf_Dyn_iterator Ret(dot_dynamic_sec->sh_entsize,
2579 (const char *)base() + dot_dynamic_sec->sh_offset +
2580 dot_dynamic_sec->sh_size);
2583 Elf_Dyn_iterator Start = begin_dynamic_table();
2584 while (Start != Ret && Start->getTag() != ELF::DT_NULL)
2587 // Include the DT_NULL.
2594 return Elf_Dyn_iterator(0, 0);
2597 template<class ELFT>
2598 StringRef ELFObjectFile<ELFT>::getLoadName() const {
2600 // Find the DT_SONAME entry
2601 Elf_Dyn_iterator it = begin_dynamic_table();
2602 Elf_Dyn_iterator ie = end_dynamic_table();
2603 while (it != ie && it->getTag() != ELF::DT_SONAME)
2607 if (dot_dynstr_sec == NULL)
2608 report_fatal_error("Dynamic string table is missing");
2609 dt_soname = getString(dot_dynstr_sec, it->getVal());
2617 template<class ELFT>
2618 library_iterator ELFObjectFile<ELFT>::begin_libraries_needed() const {
2619 // Find the first DT_NEEDED entry
2620 Elf_Dyn_iterator i = begin_dynamic_table();
2621 Elf_Dyn_iterator e = end_dynamic_table();
2622 while (i != e && i->getTag() != ELF::DT_NEEDED)
2626 DRI.p = reinterpret_cast<uintptr_t>(i.get());
2627 return library_iterator(LibraryRef(DRI, this));
2630 template<class ELFT>
2631 error_code ELFObjectFile<ELFT>::getLibraryNext(DataRefImpl Data,
2632 LibraryRef &Result) const {
2633 // Use the same DataRefImpl format as DynRef.
2634 Elf_Dyn_iterator i = Elf_Dyn_iterator(dot_dynamic_sec->sh_entsize,
2635 reinterpret_cast<const char *>(Data.p));
2636 Elf_Dyn_iterator e = end_dynamic_table();
2638 // Skip the current dynamic table entry and find the next DT_NEEDED entry.
2641 while (i != e && i->getTag() != ELF::DT_NEEDED);
2644 DRI.p = reinterpret_cast<uintptr_t>(i.get());
2645 Result = LibraryRef(DRI, this);
2646 return object_error::success;
2649 template<class ELFT>
2650 error_code ELFObjectFile<ELFT>::getLibraryPath(DataRefImpl Data,
2651 StringRef &Res) const {
2652 Elf_Dyn_iterator i = Elf_Dyn_iterator(dot_dynamic_sec->sh_entsize,
2653 reinterpret_cast<const char *>(Data.p));
2654 if (i == end_dynamic_table())
2655 report_fatal_error("getLibraryPath() called on iterator end");
2657 if (i->getTag() != ELF::DT_NEEDED)
2658 report_fatal_error("Invalid library_iterator");
2660 // This uses .dynstr to lookup the name of the DT_NEEDED entry.
2661 // THis works as long as DT_STRTAB == .dynstr. This is true most of
2662 // the time, but the specification allows exceptions.
2663 // TODO: This should really use DT_STRTAB instead. Doing this requires
2664 // reading the program headers.
2665 if (dot_dynstr_sec == NULL)
2666 report_fatal_error("Dynamic string table is missing");
2667 Res = getString(dot_dynstr_sec, i->getVal());
2668 return object_error::success;
2671 template<class ELFT>
2672 library_iterator ELFObjectFile<ELFT>::end_libraries_needed() const {
2673 Elf_Dyn_iterator e = end_dynamic_table();
2675 DRI.p = reinterpret_cast<uintptr_t>(e.get());
2676 return library_iterator(LibraryRef(DRI, this));
2679 template<class ELFT>
2680 uint8_t ELFObjectFile<ELFT>::getBytesInAddress() const {
2681 return ELFT::Is64Bits ? 8 : 4;
2684 template<class ELFT>
2685 StringRef ELFObjectFile<ELFT>::getFileFormatName() const {
2686 switch(Header->e_ident[ELF::EI_CLASS]) {
2687 case ELF::ELFCLASS32:
2688 switch(Header->e_machine) {
2690 return "ELF32-i386";
2691 case ELF::EM_X86_64:
2692 return "ELF32-x86-64";
2695 case ELF::EM_HEXAGON:
2696 return "ELF32-hexagon";
2698 return "ELF32-mips";
2702 return "ELF32-unknown";
2704 case ELF::ELFCLASS64:
2705 switch(Header->e_machine) {
2707 return "ELF64-i386";
2708 case ELF::EM_X86_64:
2709 return "ELF64-x86-64";
2710 case ELF::EM_AARCH64:
2711 return "ELF64-aarch64";
2713 return "ELF64-ppc64";
2715 return "ELF64-s390";
2717 return "ELF64-unknown";
2720 // FIXME: Proper error handling.
2721 report_fatal_error("Invalid ELFCLASS!");
2725 template<class ELFT>
2726 unsigned ELFObjectFile<ELFT>::getArch() const {
2727 switch(Header->e_machine) {
2730 case ELF::EM_X86_64:
2731 return Triple::x86_64;
2732 case ELF::EM_AARCH64:
2733 return Triple::aarch64;
2736 case ELF::EM_HEXAGON:
2737 return Triple::hexagon;
2739 return (ELFT::TargetEndianness == support::little) ?
2740 Triple::mipsel : Triple::mips;
2742 return Triple::ppc64;
2744 return Triple::systemz;
2746 return Triple::UnknownArch;
2750 template<class ELFT>
2751 uint64_t ELFObjectFile<ELFT>::getNumSections() const {
2752 assert(Header && "Header not initialized!");
2753 if (Header->e_shnum == ELF::SHN_UNDEF) {
2754 assert(SectionHeaderTable && "SectionHeaderTable not initialized!");
2755 return SectionHeaderTable->sh_size;
2757 return Header->e_shnum;
2760 template<class ELFT>
2762 ELFObjectFile<ELFT>::getStringTableIndex() const {
2763 if (Header->e_shnum == ELF::SHN_UNDEF) {
2764 if (Header->e_shstrndx == ELF::SHN_HIRESERVE)
2765 return SectionHeaderTable->sh_link;
2766 if (Header->e_shstrndx >= getNumSections())
2769 return Header->e_shstrndx;
2772 template<class ELFT>
2773 template<typename T>
2775 ELFObjectFile<ELFT>::getEntry(uint16_t Section, uint32_t Entry) const {
2776 return getEntry<T>(getSection(Section), Entry);
2779 template<class ELFT>
2780 template<typename T>
2782 ELFObjectFile<ELFT>::getEntry(const Elf_Shdr * Section, uint32_t Entry) const {
2783 return reinterpret_cast<const T *>(
2785 + Section->sh_offset
2786 + (Entry * Section->sh_entsize));
2789 template<class ELFT>
2790 const typename ELFObjectFile<ELFT>::Elf_Sym *
2791 ELFObjectFile<ELFT>::getSymbol(DataRefImpl Symb) const {
2792 return getEntry<Elf_Sym>(SymbolTableSections[Symb.d.b], Symb.d.a);
2795 template<class ELFT>
2796 const typename ELFObjectFile<ELFT>::Elf_Rel *
2797 ELFObjectFile<ELFT>::getRel(DataRefImpl Rel) const {
2798 return getEntry<Elf_Rel>(Rel.w.b, Rel.w.c);
2801 template<class ELFT>
2802 const typename ELFObjectFile<ELFT>::Elf_Rela *
2803 ELFObjectFile<ELFT>::getRela(DataRefImpl Rela) const {
2804 return getEntry<Elf_Rela>(Rela.w.b, Rela.w.c);
2807 template<class ELFT>
2808 const typename ELFObjectFile<ELFT>::Elf_Shdr *
2809 ELFObjectFile<ELFT>::getSection(DataRefImpl Symb) const {
2810 const Elf_Shdr *sec = getSection(Symb.d.b);
2811 if (sec->sh_type != ELF::SHT_SYMTAB || sec->sh_type != ELF::SHT_DYNSYM)
2812 // FIXME: Proper error handling.
2813 report_fatal_error("Invalid symbol table section!");
2817 template<class ELFT>
2818 const typename ELFObjectFile<ELFT>::Elf_Shdr *
2819 ELFObjectFile<ELFT>::getSection(uint32_t index) const {
2822 if (!SectionHeaderTable || index >= getNumSections())
2823 // FIXME: Proper error handling.
2824 report_fatal_error("Invalid section index!");
2826 return reinterpret_cast<const Elf_Shdr *>(
2827 reinterpret_cast<const char *>(SectionHeaderTable)
2828 + (index * Header->e_shentsize));
2831 template<class ELFT>
2832 const char *ELFObjectFile<ELFT>::getString(uint32_t section,
2833 ELF::Elf32_Word offset) const {
2834 return getString(getSection(section), offset);
2837 template<class ELFT>
2838 const char *ELFObjectFile<ELFT>::getString(const Elf_Shdr *section,
2839 ELF::Elf32_Word offset) const {
2840 assert(section && section->sh_type == ELF::SHT_STRTAB && "Invalid section!");
2841 if (offset >= section->sh_size)
2842 // FIXME: Proper error handling.
2843 report_fatal_error("Symbol name offset outside of string table!");
2844 return (const char *)base() + section->sh_offset + offset;
2847 template<class ELFT>
2848 error_code ELFObjectFile<ELFT>::getSymbolName(const Elf_Shdr *section,
2849 const Elf_Sym *symb,
2850 StringRef &Result) const {
2851 if (symb->st_name == 0) {
2852 const Elf_Shdr *section = getSection(symb);
2856 Result = getString(dot_shstrtab_sec, section->sh_name);
2857 return object_error::success;
2860 if (section == SymbolTableSections[0]) {
2861 // Symbol is in .dynsym, use .dynstr string table
2862 Result = getString(dot_dynstr_sec, symb->st_name);
2864 // Use the default symbol table name section.
2865 Result = getString(dot_strtab_sec, symb->st_name);
2867 return object_error::success;
2870 template<class ELFT>
2871 error_code ELFObjectFile<ELFT>::getSectionName(const Elf_Shdr *section,
2872 StringRef &Result) const {
2873 Result = StringRef(getString(dot_shstrtab_sec, section->sh_name));
2874 return object_error::success;
2877 template<class ELFT>
2878 error_code ELFObjectFile<ELFT>::getSymbolVersion(const Elf_Shdr *section,
2879 const Elf_Sym *symb,
2881 bool &IsDefault) const {
2882 // Handle non-dynamic symbols.
2883 if (section != SymbolTableSections[0]) {
2884 // Non-dynamic symbols can have versions in their names
2885 // A name of the form 'foo@V1' indicates version 'V1', non-default.
2886 // A name of the form 'foo@@V2' indicates version 'V2', default version.
2888 error_code ec = getSymbolName(section, symb, Name);
2889 if (ec != object_error::success)
2891 size_t atpos = Name.find('@');
2892 if (atpos == StringRef::npos) {
2895 return object_error::success;
2898 if (atpos < Name.size() && Name[atpos] == '@') {
2904 Version = Name.substr(atpos);
2905 return object_error::success;
2908 // This is a dynamic symbol. Look in the GNU symbol version table.
2909 if (dot_gnu_version_sec == NULL) {
2910 // No version table.
2913 return object_error::success;
2916 // Determine the position in the symbol table of this entry.
2917 const char *sec_start = (const char*)base() + section->sh_offset;
2918 size_t entry_index = ((const char*)symb - sec_start)/section->sh_entsize;
2920 // Get the corresponding version index entry
2921 const Elf_Versym *vs = getEntry<Elf_Versym>(dot_gnu_version_sec, entry_index);
2922 size_t version_index = vs->vs_index & ELF::VERSYM_VERSION;
2924 // Special markers for unversioned symbols.
2925 if (version_index == ELF::VER_NDX_LOCAL ||
2926 version_index == ELF::VER_NDX_GLOBAL) {
2929 return object_error::success;
2932 // Lookup this symbol in the version table
2934 if (version_index >= VersionMap.size() || VersionMap[version_index].isNull())
2935 report_fatal_error("Symbol has version index without corresponding "
2936 "define or reference entry");
2937 const VersionMapEntry &entry = VersionMap[version_index];
2939 // Get the version name string
2941 if (entry.isVerdef()) {
2942 // The first Verdaux entry holds the name.
2943 name_offset = entry.getVerdef()->getAux()->vda_name;
2945 name_offset = entry.getVernaux()->vna_name;
2947 Version = getString(dot_dynstr_sec, name_offset);
2950 if (entry.isVerdef()) {
2951 IsDefault = !(vs->vs_index & ELF::VERSYM_HIDDEN);
2956 return object_error::success;
2959 /// FIXME: Maybe we should have a base ElfObjectFile that is not a template
2960 /// and make these member functions?
2961 static inline error_code getELFRelocationAddend(const RelocationRef R,
2963 const ObjectFile *Obj = R.getObjectFile();
2964 DataRefImpl DRI = R.getRawDataRefImpl();
2965 // Little-endian 32-bit
2966 if (const ELF32LEObjectFile *ELFObj = dyn_cast<ELF32LEObjectFile>(Obj))
2967 return ELFObj->getRelocationAddend(DRI, Addend);
2969 // Big-endian 32-bit
2970 if (const ELF32BEObjectFile *ELFObj = dyn_cast<ELF32BEObjectFile>(Obj))
2971 return ELFObj->getRelocationAddend(DRI, Addend);
2973 // Little-endian 64-bit
2974 if (const ELF64LEObjectFile *ELFObj = dyn_cast<ELF64LEObjectFile>(Obj))
2975 return ELFObj->getRelocationAddend(DRI, Addend);
2977 // Big-endian 64-bit
2978 if (const ELF64BEObjectFile *ELFObj = dyn_cast<ELF64BEObjectFile>(Obj))
2979 return ELFObj->getRelocationAddend(DRI, Addend);
2981 llvm_unreachable("Object passed to getELFRelocationAddend() is not ELF");
2984 /// This is a generic interface for retrieving GNU symbol version
2985 /// information from an ELFObjectFile.
2986 static inline error_code GetELFSymbolVersion(const ObjectFile *Obj,
2987 const SymbolRef &Sym,
2990 // Little-endian 32-bit
2991 if (const ELF32LEObjectFile *ELFObj = dyn_cast<ELF32LEObjectFile>(Obj))
2992 return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
2994 // Big-endian 32-bit
2995 if (const ELF32BEObjectFile *ELFObj = dyn_cast<ELF32BEObjectFile>(Obj))
2996 return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
2998 // Little-endian 64-bit
2999 if (const ELF64LEObjectFile *ELFObj = dyn_cast<ELF64LEObjectFile>(Obj))
3000 return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
3002 // Big-endian 64-bit
3003 if (const ELF64BEObjectFile *ELFObj = dyn_cast<ELF64BEObjectFile>(Obj))
3004 return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
3006 llvm_unreachable("Object passed to GetELFSymbolVersion() is not ELF");
3009 /// This function returns the hash value for a symbol in the .dynsym section
3010 /// Name of the API remains consistent as specified in the libelf
3011 /// REF : http://www.sco.com/developers/gabi/latest/ch5.dynamic.html#hash
3012 static inline unsigned elf_hash(StringRef &symbolName) {
3014 for (unsigned i = 0, j = symbolName.size(); i < j; i++) {
3015 h = (h << 4) + symbolName[i];
3016 g = h & 0xf0000000L;