lib/Support/Dwarf.cpp

   1 //===-- llvm/Support/Dwarf.cpp - Dwarf Framework ----------------*- C++ -*-===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // This file contains support for generic dwarf information.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #include "llvm/Support/Dwarf.h"
  15 #include "llvm/ADT/StringSwitch.h"
  16 #include "llvm/Support/ErrorHandling.h"
  17
  18 using namespace llvm;
  19 using namespace dwarf;
  20
  21 const char *llvm::dwarf::TagString(unsigned Tag) {
  22   switch (Tag) {
  23   default: return nullptr;
  24 #define HANDLE_DW_TAG(ID, NAME)                                                \
  25   case DW_TAG_##NAME:                                                          \
  26     return "DW_TAG_" #NAME;
  27 #include "llvm/Support/Dwarf.def"
  28   }
  29 }
  30
  31 unsigned llvm::dwarf::getTag(StringRef TagString) {
  32   return StringSwitch<unsigned>(TagString)
  33 #define HANDLE_DW_TAG(ID, NAME) .Case("DW_TAG_" #NAME, DW_TAG_##NAME)
  34 #include "llvm/Support/Dwarf.def"
  35       .Default(DW_TAG_invalid);
  36 }
  37
  38 const char *llvm::dwarf::ChildrenString(unsigned Children) {
  39   switch (Children) {
  40   case DW_CHILDREN_no:                   return "DW_CHILDREN_no";
  41   case DW_CHILDREN_yes:                  return "DW_CHILDREN_yes";
  42   }
  43   return nullptr;
  44 }
  45
  46 const char *llvm::dwarf::AttributeString(unsigned Attribute) {
  47   switch (Attribute) {
  48   case DW_AT_sibling:                    return "DW_AT_sibling";
  49   case DW_AT_location:                   return "DW_AT_location";
  50   case DW_AT_name:                       return "DW_AT_name";
  51   case DW_AT_ordering:                   return "DW_AT_ordering";
  52   case DW_AT_byte_size:                  return "DW_AT_byte_size";
  53   case DW_AT_bit_offset:                 return "DW_AT_bit_offset";
  54   case DW_AT_bit_size:                   return "DW_AT_bit_size";
  55   case DW_AT_stmt_list:                  return "DW_AT_stmt_list";
  56   case DW_AT_low_pc:                     return "DW_AT_low_pc";
  57   case DW_AT_high_pc:                    return "DW_AT_high_pc";
  58   case DW_AT_language:                   return "DW_AT_language";
  59   case DW_AT_discr:                      return "DW_AT_discr";
  60   case DW_AT_discr_value:                return "DW_AT_discr_value";
  61   case DW_AT_visibility:                 return "DW_AT_visibility";
  62   case DW_AT_import:                     return "DW_AT_import";
  63   case DW_AT_string_length:              return "DW_AT_string_length";
  64   case DW_AT_common_reference:           return "DW_AT_common_reference";
  65   case DW_AT_comp_dir:                   return "DW_AT_comp_dir";
  66   case DW_AT_const_value:                return "DW_AT_const_value";
  67   case DW_AT_containing_type:            return "DW_AT_containing_type";
  68   case DW_AT_default_value:              return "DW_AT_default_value";
  69   case DW_AT_inline:                     return "DW_AT_inline";
  70   case DW_AT_is_optional:                return "DW_AT_is_optional";
  71   case DW_AT_lower_bound:                return "DW_AT_lower_bound";
  72   case DW_AT_producer:                   return "DW_AT_producer";
  73   case DW_AT_prototyped:                 return "DW_AT_prototyped";
  74   case DW_AT_return_addr:                return "DW_AT_return_addr";
  75   case DW_AT_start_scope:                return "DW_AT_start_scope";
  76   case DW_AT_bit_stride:                 return "DW_AT_bit_stride";
  77   case DW_AT_upper_bound:                return "DW_AT_upper_bound";
  78   case DW_AT_abstract_origin:            return "DW_AT_abstract_origin";
  79   case DW_AT_accessibility:              return "DW_AT_accessibility";
  80   case DW_AT_address_class:              return "DW_AT_address_class";
  81   case DW_AT_artificial:                 return "DW_AT_artificial";
  82   case DW_AT_base_types:                 return "DW_AT_base_types";
  83   case DW_AT_calling_convention:         return "DW_AT_calling_convention";
  84   case DW_AT_count:                      return "DW_AT_count";
  85   case DW_AT_data_member_location:       return "DW_AT_data_member_location";
  86   case DW_AT_decl_column:                return "DW_AT_decl_column";
  87   case DW_AT_decl_file:                  return "DW_AT_decl_file";
  88   case DW_AT_decl_line:                  return "DW_AT_decl_line";
  89   case DW_AT_declaration:                return "DW_AT_declaration";
  90   case DW_AT_discr_list:                 return "DW_AT_discr_list";
  91   case DW_AT_encoding:                   return "DW_AT_encoding";
  92   case DW_AT_external:                   return "DW_AT_external";
  93   case DW_AT_frame_base:                 return "DW_AT_frame_base";
  94   case DW_AT_friend:                     return "DW_AT_friend";
  95   case DW_AT_identifier_case:            return "DW_AT_identifier_case";
  96   case DW_AT_macro_info:                 return "DW_AT_macro_info";
  97   case DW_AT_namelist_item:              return "DW_AT_namelist_item";
  98   case DW_AT_priority:                   return "DW_AT_priority";
  99   case DW_AT_segment:                    return "DW_AT_segment";
 100   case DW_AT_specification:              return "DW_AT_specification";
 101   case DW_AT_static_link:                return "DW_AT_static_link";
 102   case DW_AT_type:                       return "DW_AT_type";
 103   case DW_AT_use_location:               return "DW_AT_use_location";
 104   case DW_AT_variable_parameter:         return "DW_AT_variable_parameter";
 105   case DW_AT_virtuality:                 return "DW_AT_virtuality";
 106   case DW_AT_vtable_elem_location:       return "DW_AT_vtable_elem_location";
 107   case DW_AT_allocated:                  return "DW_AT_allocated";
 108   case DW_AT_associated:                 return "DW_AT_associated";
 109   case DW_AT_data_location:              return "DW_AT_data_location";
 110   case DW_AT_byte_stride:                return "DW_AT_byte_stride";
 111   case DW_AT_entry_pc:                   return "DW_AT_entry_pc";
 112   case DW_AT_use_UTF8:                   return "DW_AT_use_UTF8";
 113   case DW_AT_extension:                  return "DW_AT_extension";
 114   case DW_AT_ranges:                     return "DW_AT_ranges";
 115   case DW_AT_trampoline:                 return "DW_AT_trampoline";
 116   case DW_AT_call_column:                return "DW_AT_call_column";
 117   case DW_AT_call_file:                  return "DW_AT_call_file";
 118   case DW_AT_call_line:                  return "DW_AT_call_line";
 119   case DW_AT_description:                return "DW_AT_description";
 120   case DW_AT_binary_scale:               return "DW_AT_binary_scale";
 121   case DW_AT_decimal_scale:              return "DW_AT_decimal_scale";
 122   case DW_AT_small:                      return "DW_AT_small";
 123   case DW_AT_decimal_sign:               return "DW_AT_decimal_sign";
 124   case DW_AT_digit_count:                return "DW_AT_digit_count";
 125   case DW_AT_picture_string:             return "DW_AT_picture_string";
 126   case DW_AT_mutable:                    return "DW_AT_mutable";
 127   case DW_AT_threads_scaled:             return "DW_AT_threads_scaled";
 128   case DW_AT_explicit:                   return "DW_AT_explicit";
 129   case DW_AT_object_pointer:             return "DW_AT_object_pointer";
 130   case DW_AT_endianity:                  return "DW_AT_endianity";
 131   case DW_AT_elemental:                  return "DW_AT_elemental";
 132   case DW_AT_pure:                       return "DW_AT_pure";
 133   case DW_AT_recursive:                  return "DW_AT_recursive";
 134   case DW_AT_signature:                  return "DW_AT_signature";
 135   case DW_AT_main_subprogram:            return "DW_AT_main_subprogram";
 136   case DW_AT_data_bit_offset:            return "DW_AT_data_bit_offset";
 137   case DW_AT_const_expr:                 return "DW_AT_const_expr";
 138   case DW_AT_enum_class:                 return "DW_AT_enum_class";
 139   case DW_AT_linkage_name:               return "DW_AT_linkage_name";
 140   case DW_AT_string_length_bit_size:     return "DW_AT_string_length_bit_size";
 141   case DW_AT_string_length_byte_size:    return "DW_AT_string_length_byte_size";
 142   case DW_AT_rank:                       return "DW_AT_rank";
 143   case DW_AT_str_offsets_base:           return "DW_AT_str_offsets_base";
 144   case DW_AT_addr_base:                  return "DW_AT_addr_base";
 145   case DW_AT_ranges_base:                return "DW_AT_ranges_base";
 146   case DW_AT_dwo_id:                     return "DW_AT_dwo_id";
 147   case DW_AT_dwo_name:                   return "DW_AT_dwo_name";
 148   case DW_AT_reference:                  return "DW_AT_reference";
 149   case DW_AT_rvalue_reference:           return "DW_AT_rvalue_reference";
 150   case DW_AT_MIPS_loop_begin:            return "DW_AT_MIPS_loop_begin";
 151   case DW_AT_MIPS_tail_loop_begin:       return "DW_AT_MIPS_tail_loop_begin";
 152   case DW_AT_MIPS_epilog_begin:          return "DW_AT_MIPS_epilog_begin";
 153   case DW_AT_MIPS_loop_unroll_factor:    return "DW_AT_MIPS_loop_unroll_factor";
 154   case DW_AT_MIPS_software_pipeline_depth:
 155     return "DW_AT_MIPS_software_pipeline_depth";
 156   case DW_AT_MIPS_linkage_name:          return "DW_AT_MIPS_linkage_name";
 157   case DW_AT_MIPS_stride:                return "DW_AT_MIPS_stride";
 158   case DW_AT_MIPS_abstract_name:         return "DW_AT_MIPS_abstract_name";
 159   case DW_AT_MIPS_clone_origin:          return "DW_AT_MIPS_clone_origin";
 160   case DW_AT_MIPS_has_inlines:           return "DW_AT_MIPS_has_inlines";
 161   case DW_AT_MIPS_stride_byte:           return "DW_AT_MIPS_stride_byte";
 162   case DW_AT_MIPS_stride_elem:           return "DW_AT_MIPS_stride_elem";
 163   case DW_AT_MIPS_ptr_dopetype:          return "DW_AT_MIPS_ptr_dopetype";
 164   case DW_AT_MIPS_allocatable_dopetype:
 165     return "DW_AT_MIPS_allocatable_dopetype";
 166   case DW_AT_MIPS_assumed_shape_dopetype:
 167     return "DW_AT_MIPS_assumed_shape_dopetype";
 168   case DW_AT_sf_names:                   return "DW_AT_sf_names";
 169   case DW_AT_src_info:                   return "DW_AT_src_info";
 170   case DW_AT_mac_info:                   return "DW_AT_mac_info";
 171   case DW_AT_src_coords:                 return "DW_AT_src_coords";
 172   case DW_AT_body_begin:                 return "DW_AT_body_begin";
 173   case DW_AT_body_end:                   return "DW_AT_body_end";
 174   case DW_AT_GNU_vector:                 return "DW_AT_GNU_vector";
 175   case DW_AT_GNU_template_name:          return "DW_AT_GNU_template_name";
 176   case DW_AT_GNU_odr_signature:          return "DW_AT_GNU_odr_signature";
 177   case DW_AT_MIPS_assumed_size:          return "DW_AT_MIPS_assumed_size";
 178   case DW_AT_lo_user:                    return "DW_AT_lo_user";
 179   case DW_AT_hi_user:                    return "DW_AT_hi_user";
 180   case DW_AT_APPLE_optimized:            return "DW_AT_APPLE_optimized";
 181   case DW_AT_APPLE_flags:                return "DW_AT_APPLE_flags";
 182   case DW_AT_APPLE_isa:                  return "DW_AT_APPLE_isa";
 183   case DW_AT_APPLE_block:                return "DW_AT_APPLE_block";
 184   case DW_AT_APPLE_major_runtime_vers:   return "DW_AT_APPLE_major_runtime_vers";
 185   case DW_AT_APPLE_runtime_class:        return "DW_AT_APPLE_runtime_class";
 186   case DW_AT_APPLE_omit_frame_ptr:       return "DW_AT_APPLE_omit_frame_ptr";
 187   case DW_AT_APPLE_property_name:        return "DW_AT_APPLE_property_name";
 188   case DW_AT_APPLE_property_getter:      return "DW_AT_APPLE_property_getter";
 189   case DW_AT_APPLE_property_setter:      return "DW_AT_APPLE_property_setter";
 190   case DW_AT_APPLE_property_attribute:   return "DW_AT_APPLE_property_attribute";
 191   case DW_AT_APPLE_property:             return "DW_AT_APPLE_property";
 192   case DW_AT_APPLE_objc_complete_type:   return "DW_AT_APPLE_objc_complete_type";
 193   case DW_AT_LLVM_include_path:          return "DW_AT_LLVM_include_path";
 194   case DW_AT_LLVM_config_macros:         return "DW_AT_LLVM_config_macros";
 195   case DW_AT_LLVM_isysroot:              return "DW_AT_LLVM_isysroot";
 196
 197     // DWARF5 Fission Extension Attribute
 198   case DW_AT_GNU_dwo_name:               return "DW_AT_GNU_dwo_name";
 199   case DW_AT_GNU_dwo_id:                 return "DW_AT_GNU_dwo_id";
 200   case DW_AT_GNU_ranges_base:            return "DW_AT_GNU_ranges_base";
 201   case DW_AT_GNU_addr_base:              return "DW_AT_GNU_addr_base";
 202   case DW_AT_GNU_pubnames:               return "DW_AT_GNU_pubnames";
 203   case DW_AT_GNU_pubtypes:               return "DW_AT_GNU_pubtypes";
 204   }
 205   return nullptr;
 206 }
 207
 208 const char *llvm::dwarf::FormEncodingString(unsigned Encoding) {
 209   switch (Encoding) {
 210   case DW_FORM_addr:                     return "DW_FORM_addr";
 211   case DW_FORM_block2:                   return "DW_FORM_block2";
 212   case DW_FORM_block4:                   return "DW_FORM_block4";
 213   case DW_FORM_data2:                    return "DW_FORM_data2";
 214   case DW_FORM_data4:                    return "DW_FORM_data4";
 215   case DW_FORM_data8:                    return "DW_FORM_data8";
 216   case DW_FORM_string:                   return "DW_FORM_string";
 217   case DW_FORM_block:                    return "DW_FORM_block";
 218   case DW_FORM_block1:                   return "DW_FORM_block1";
 219   case DW_FORM_data1:                    return "DW_FORM_data1";
 220   case DW_FORM_flag:                     return "DW_FORM_flag";
 221   case DW_FORM_sdata:                    return "DW_FORM_sdata";
 222   case DW_FORM_strp:                     return "DW_FORM_strp";
 223   case DW_FORM_udata:                    return "DW_FORM_udata";
 224   case DW_FORM_ref_addr:                 return "DW_FORM_ref_addr";
 225   case DW_FORM_ref1:                     return "DW_FORM_ref1";
 226   case DW_FORM_ref2:                     return "DW_FORM_ref2";
 227   case DW_FORM_ref4:                     return "DW_FORM_ref4";
 228   case DW_FORM_ref8:                     return "DW_FORM_ref8";
 229   case DW_FORM_ref_udata:                return "DW_FORM_ref_udata";
 230   case DW_FORM_indirect:                 return "DW_FORM_indirect";
 231   case DW_FORM_sec_offset:               return "DW_FORM_sec_offset";
 232   case DW_FORM_exprloc:                  return "DW_FORM_exprloc";
 233   case DW_FORM_flag_present:             return "DW_FORM_flag_present";
 234   case DW_FORM_ref_sig8:                 return "DW_FORM_ref_sig8";
 235
 236     // DWARF5 Fission Extension Forms
 237   case DW_FORM_GNU_addr_index:           return "DW_FORM_GNU_addr_index";
 238   case DW_FORM_GNU_str_index:            return "DW_FORM_GNU_str_index";
 239
 240   // Alternate debug sections proposal (output of "dwz" tool).
 241   case DW_FORM_GNU_ref_alt:              return "DW_FORM_GNU_ref_alt";
 242   case DW_FORM_GNU_strp_alt:             return "DW_FORM_GNU_strp_alt";
 243   }
 244   return nullptr;
 245 }
 246
 247 const char *llvm::dwarf::OperationEncodingString(unsigned Encoding) {
 248   switch (Encoding) {
 249   default: return nullptr;
 250 #define HANDLE_DW_OP(ID, NAME)                                                 \
 251   case DW_OP_##NAME:                                                           \
 252     return "DW_OP_" #NAME;
 253 #include "llvm/Support/Dwarf.def"
 254   }
 255 }
 256
 257 unsigned llvm::dwarf::getOperationEncoding(StringRef OperationEncodingString) {
 258   return StringSwitch<unsigned>(OperationEncodingString)
 259 #define HANDLE_DW_OP(ID, NAME) .Case("DW_OP_" #NAME, DW_OP_##NAME)
 260 #include "llvm/Support/Dwarf.def"
 261       .Default(0);
 262 }
 263
 264 const char *llvm::dwarf::AttributeEncodingString(unsigned Encoding) {
 265   switch (Encoding) {
 266   default: return nullptr;
 267 #define HANDLE_DW_ATE(ID, NAME)                                                \
 268   case DW_ATE_##NAME:                                                          \
 269     return "DW_ATE_" #NAME;
 270 #include "llvm/Support/Dwarf.def"
 271   }
 272 }
 273
 274 unsigned llvm::dwarf::getAttributeEncoding(StringRef EncodingString) {
 275   return StringSwitch<unsigned>(EncodingString)
 276 #define HANDLE_DW_ATE(ID, NAME) .Case("DW_ATE_" #NAME, DW_ATE_##NAME)
 277 #include "llvm/Support/Dwarf.def"
 278       .Default(0);
 279 }
 280
 281 const char *llvm::dwarf::DecimalSignString(unsigned Sign) {
 282   switch (Sign) {
 283   case DW_DS_unsigned:                   return "DW_DS_unsigned";
 284   case DW_DS_leading_overpunch:          return "DW_DS_leading_overpunch";
 285   case DW_DS_trailing_overpunch:         return "DW_DS_trailing_overpunch";
 286   case DW_DS_leading_separate:           return "DW_DS_leading_separate";
 287   case DW_DS_trailing_separate:          return "DW_DS_trailing_separate";
 288   }
 289   return nullptr;
 290 }
 291
 292 const char *llvm::dwarf::EndianityString(unsigned Endian) {
 293   switch (Endian) {
 294   case DW_END_default:                   return "DW_END_default";
 295   case DW_END_big:                       return "DW_END_big";
 296   case DW_END_little:                    return "DW_END_little";
 297   case DW_END_lo_user:                   return "DW_END_lo_user";
 298   case DW_END_hi_user:                   return "DW_END_hi_user";
 299   }
 300   return nullptr;
 301 }
 302
 303 const char *llvm::dwarf::AccessibilityString(unsigned Access) {
 304   switch (Access) {
 305   // Accessibility codes
 306   case DW_ACCESS_public:                 return "DW_ACCESS_public";
 307   case DW_ACCESS_protected:              return "DW_ACCESS_protected";
 308   case DW_ACCESS_private:                return "DW_ACCESS_private";
 309   }
 310   return nullptr;
 311 }
 312
 313 const char *llvm::dwarf::VisibilityString(unsigned Visibility) {
 314   switch (Visibility) {
 315   case DW_VIS_local:                     return "DW_VIS_local";
 316   case DW_VIS_exported:                  return "DW_VIS_exported";
 317   case DW_VIS_qualified:                 return "DW_VIS_qualified";
 318   }
 319   return nullptr;
 320 }
 321
 322 const char *llvm::dwarf::VirtualityString(unsigned Virtuality) {
 323   switch (Virtuality) {
 324   default:
 325     return nullptr;
 326 #define HANDLE_DW_VIRTUALITY(ID, NAME)                                         \
 327   case DW_VIRTUALITY_##NAME:                                                   \
 328     return "DW_VIRTUALITY_" #NAME;
 329 #include "llvm/Support/Dwarf.def"
 330   }
 331 }
 332
 333 unsigned llvm::dwarf::getVirtuality(StringRef VirtualityString) {
 334   return StringSwitch<unsigned>(VirtualityString)
 335 #define HANDLE_DW_VIRTUALITY(ID, NAME)                                         \
 336   .Case("DW_VIRTUALITY_" #NAME, DW_VIRTUALITY_##NAME)
 337 #include "llvm/Support/Dwarf.def"
 338       .Default(DW_VIRTUALITY_invalid);
 339 }
 340
 341 const char *llvm::dwarf::LanguageString(unsigned Language) {
 342   switch (Language) {
 343   default:
 344     return nullptr;
 345 #define HANDLE_DW_LANG(ID, NAME)                                               \
 346   case DW_LANG_##NAME:                                                         \
 347     return "DW_LANG_" #NAME;
 348 #include "llvm/Support/Dwarf.def"
 349   }
 350 }
 351
 352 unsigned llvm::dwarf::getLanguage(StringRef LanguageString) {
 353   return StringSwitch<unsigned>(LanguageString)
 354 #define HANDLE_DW_LANG(ID, NAME) .Case("DW_LANG_" #NAME, DW_LANG_##NAME)
 355 #include "llvm/Support/Dwarf.def"
 356       .Default(0);
 357 }
 358
 359 const char *llvm::dwarf::CaseString(unsigned Case) {
 360   switch (Case) {
 361   case DW_ID_case_sensitive:             return "DW_ID_case_sensitive";
 362   case DW_ID_up_case:                    return "DW_ID_up_case";
 363   case DW_ID_down_case:                  return "DW_ID_down_case";
 364   case DW_ID_case_insensitive:           return "DW_ID_case_insensitive";
 365   }
 366   return nullptr;
 367 }
 368
 369 const char *llvm::dwarf::ConventionString(unsigned Convention) {
 370    switch (Convention) {
 371    case DW_CC_normal:                     return "DW_CC_normal";
 372    case DW_CC_program:                    return "DW_CC_program";
 373    case DW_CC_nocall:                     return "DW_CC_nocall";
 374    case DW_CC_lo_user:                    return "DW_CC_lo_user";
 375    case DW_CC_hi_user:                    return "DW_CC_hi_user";
 376   }
 377   return nullptr;
 378 }
 379
 380 const char *llvm::dwarf::InlineCodeString(unsigned Code) {
 381   switch (Code) {
 382   case DW_INL_not_inlined:               return "DW_INL_not_inlined";
 383   case DW_INL_inlined:                   return "DW_INL_inlined";
 384   case DW_INL_declared_not_inlined:      return "DW_INL_declared_not_inlined";
 385   case DW_INL_declared_inlined:          return "DW_INL_declared_inlined";
 386   }
 387   return nullptr;
 388 }
 389
 390 const char *llvm::dwarf::ArrayOrderString(unsigned Order) {
 391   switch (Order) {
 392   case DW_ORD_row_major:                 return "DW_ORD_row_major";
 393   case DW_ORD_col_major:                 return "DW_ORD_col_major";
 394   }
 395   return nullptr;
 396 }
 397
 398 const char *llvm::dwarf::DiscriminantString(unsigned Discriminant) {
 399   switch (Discriminant) {
 400   case DW_DSC_label:                     return "DW_DSC_label";
 401   case DW_DSC_range:                     return "DW_DSC_range";
 402   }
 403   return nullptr;
 404 }
 405
 406 const char *llvm::dwarf::LNStandardString(unsigned Standard) {
 407   switch (Standard) {
 408   case DW_LNS_copy:                      return "DW_LNS_copy";
 409   case DW_LNS_advance_pc:                return "DW_LNS_advance_pc";
 410   case DW_LNS_advance_line:              return "DW_LNS_advance_line";
 411   case DW_LNS_set_file:                  return "DW_LNS_set_file";
 412   case DW_LNS_set_column:                return "DW_LNS_set_column";
 413   case DW_LNS_negate_stmt:               return "DW_LNS_negate_stmt";
 414   case DW_LNS_set_basic_block:           return "DW_LNS_set_basic_block";
 415   case DW_LNS_const_add_pc:              return "DW_LNS_const_add_pc";
 416   case DW_LNS_fixed_advance_pc:          return "DW_LNS_fixed_advance_pc";
 417   case DW_LNS_set_prologue_end:          return "DW_LNS_set_prologue_end";
 418   case DW_LNS_set_epilogue_begin:        return "DW_LNS_set_epilogue_begin";
 419   case DW_LNS_set_isa:                   return "DW_LNS_set_isa";
 420   }
 421   return nullptr;
 422 }
 423
 424 const char *llvm::dwarf::LNExtendedString(unsigned Encoding) {
 425   switch (Encoding) {
 426   // Line Number Extended Opcode Encodings
 427   case DW_LNE_end_sequence:              return "DW_LNE_end_sequence";
 428   case DW_LNE_set_address:               return "DW_LNE_set_address";
 429   case DW_LNE_define_file:               return "DW_LNE_define_file";
 430   case DW_LNE_set_discriminator:         return "DW_LNE_set_discriminator";
 431   case DW_LNE_lo_user:                   return "DW_LNE_lo_user";
 432   case DW_LNE_hi_user:                   return "DW_LNE_hi_user";
 433   }
 434   return nullptr;
 435 }
 436
 437 const char *llvm::dwarf::MacinfoString(unsigned Encoding) {
 438   switch (Encoding) {
 439   // Macinfo Type Encodings
 440   case DW_MACINFO_define:                return "DW_MACINFO_define";
 441   case DW_MACINFO_undef:                 return "DW_MACINFO_undef";
 442   case DW_MACINFO_start_file:            return "DW_MACINFO_start_file";
 443   case DW_MACINFO_end_file:              return "DW_MACINFO_end_file";
 444   case DW_MACINFO_vendor_ext:            return "DW_MACINFO_vendor_ext";
 445   }
 446   return nullptr;
 447 }
 448
 449 const char *llvm::dwarf::CallFrameString(unsigned Encoding) {
 450   switch (Encoding) {
 451   case DW_CFA_nop:                       return "DW_CFA_nop";
 452   case DW_CFA_advance_loc:               return "DW_CFA_advance_loc";
 453   case DW_CFA_offset:                    return "DW_CFA_offset";
 454   case DW_CFA_restore:                   return "DW_CFA_restore";
 455   case DW_CFA_set_loc:                   return "DW_CFA_set_loc";
 456   case DW_CFA_advance_loc1:              return "DW_CFA_advance_loc1";
 457   case DW_CFA_advance_loc2:              return "DW_CFA_advance_loc2";
 458   case DW_CFA_advance_loc4:              return "DW_CFA_advance_loc4";
 459   case DW_CFA_offset_extended:           return "DW_CFA_offset_extended";
 460   case DW_CFA_restore_extended:          return "DW_CFA_restore_extended";
 461   case DW_CFA_undefined:                 return "DW_CFA_undefined";
 462   case DW_CFA_same_value:                return "DW_CFA_same_value";
 463   case DW_CFA_register:                  return "DW_CFA_register";
 464   case DW_CFA_remember_state:            return "DW_CFA_remember_state";
 465   case DW_CFA_restore_state:             return "DW_CFA_restore_state";
 466   case DW_CFA_def_cfa:                   return "DW_CFA_def_cfa";
 467   case DW_CFA_def_cfa_register:          return "DW_CFA_def_cfa_register";
 468   case DW_CFA_def_cfa_offset:            return "DW_CFA_def_cfa_offset";
 469   case DW_CFA_def_cfa_expression:        return "DW_CFA_def_cfa_expression";
 470   case DW_CFA_expression:                return "DW_CFA_expression";
 471   case DW_CFA_offset_extended_sf:        return "DW_CFA_offset_extended_sf";
 472   case DW_CFA_def_cfa_sf:                return "DW_CFA_def_cfa_sf";
 473   case DW_CFA_def_cfa_offset_sf:         return "DW_CFA_def_cfa_offset_sf";
 474   case DW_CFA_val_offset:                return "DW_CFA_val_offset";
 475   case DW_CFA_val_offset_sf:             return "DW_CFA_val_offset_sf";
 476   case DW_CFA_val_expression:            return "DW_CFA_val_expression";
 477   case DW_CFA_MIPS_advance_loc8:         return "DW_CFA_MIPS_advance_loc8";
 478   case DW_CFA_GNU_window_save:           return "DW_CFA_GNU_window_save";
 479   case DW_CFA_GNU_args_size:             return "DW_CFA_GNU_args_size";
 480   case DW_CFA_lo_user:                   return "DW_CFA_lo_user";
 481   case DW_CFA_hi_user:                   return "DW_CFA_hi_user";
 482   }
 483   return nullptr;
 484 }
 485
 486 const char *llvm::dwarf::ApplePropertyString(unsigned Prop) {
 487   switch (Prop) {
 488   case DW_APPLE_PROPERTY_readonly:
 489     return "DW_APPLE_PROPERTY_readonly";
 490   case DW_APPLE_PROPERTY_getter:
 491     return "DW_APPLE_PROPERTY_getter";
 492   case DW_APPLE_PROPERTY_assign:
 493     return "DW_APPLE_PROPERTY_assign";
 494   case DW_APPLE_PROPERTY_readwrite:
 495     return "DW_APPLE_PROPERTY_readwrite";
 496   case DW_APPLE_PROPERTY_retain:
 497     return "DW_APPLE_PROPERTY_retain";
 498   case DW_APPLE_PROPERTY_copy:
 499     return "DW_APPLE_PROPERTY_copy";
 500   case DW_APPLE_PROPERTY_nonatomic:
 501     return "DW_APPLE_PROPERTY_nonatomic";
 502   case DW_APPLE_PROPERTY_setter:
 503     return "DW_APPLE_PROPERTY_setter";
 504   case DW_APPLE_PROPERTY_atomic:
 505     return "DW_APPLE_PROPERTY_atomic";
 506   case DW_APPLE_PROPERTY_weak:
 507     return "DW_APPLE_PROPERTY_weak";
 508   case DW_APPLE_PROPERTY_strong:
 509     return "DW_APPLE_PROPERTY_strong";
 510   case DW_APPLE_PROPERTY_unsafe_unretained:
 511     return "DW_APPLE_PROPERTY_unsafe_unretained";
 512   }
 513   return nullptr;
 514 }
 515
 516 const char *llvm::dwarf::AtomTypeString(unsigned AT) {
 517   switch (AT) {
 518   case dwarf::DW_ATOM_null:
 519     return "DW_ATOM_null";
 520   case dwarf::DW_ATOM_die_offset:
 521     return "DW_ATOM_die_offset";
 522   case DW_ATOM_cu_offset:
 523     return "DW_ATOM_cu_offset";
 524   case DW_ATOM_die_tag:
 525     return "DW_ATOM_die_tag";
 526   case DW_ATOM_type_flags:
 527     return "DW_ATOM_type_flags";
 528   }
 529   return nullptr;
 530 }
 531
 532 const char *llvm::dwarf::GDBIndexEntryKindString(GDBIndexEntryKind Kind) {
 533   switch (Kind) {
 534   case GIEK_NONE:
 535     return "NONE";
 536   case GIEK_TYPE:
 537     return "TYPE";
 538   case GIEK_VARIABLE:
 539     return "VARIABLE";
 540   case GIEK_FUNCTION:
 541     return "FUNCTION";
 542   case GIEK_OTHER:
 543     return "OTHER";
 544   case GIEK_UNUSED5:
 545     return "UNUSED5";
 546   case GIEK_UNUSED6:
 547     return "UNUSED6";
 548   case GIEK_UNUSED7:
 549     return "UNUSED7";
 550   }
 551   llvm_unreachable("Unknown GDBIndexEntryKind value");
 552 }
 553
 554 const char *llvm::dwarf::GDBIndexEntryLinkageString(GDBIndexEntryLinkage Linkage) {
 555   switch (Linkage) {
 556   case GIEL_EXTERNAL:
 557     return "EXTERNAL";
 558   case GIEL_STATIC:
 559     return "STATIC";
 560   }
 561   llvm_unreachable("Unknown GDBIndexEntryLinkage value");
 562 }
 563
 564 const char *llvm::dwarf::AttributeValueString(uint16_t Attr, unsigned Val) {
 565   switch (Attr) {
 566   case DW_AT_accessibility:
 567     return AccessibilityString(Val);
 568   case DW_AT_virtuality:
 569     return VirtualityString(Val);
 570   case DW_AT_language:
 571     return LanguageString(Val);
 572   case DW_AT_encoding:
 573     return AttributeEncodingString(Val);
 574   case DW_AT_decimal_sign:
 575     return DecimalSignString(Val);
 576   case DW_AT_endianity:
 577     return EndianityString(Val);
 578   case DW_AT_visibility:
 579     return VisibilityString(Val);
 580   case DW_AT_identifier_case:
 581     return CaseString(Val);
 582   case DW_AT_calling_convention:
 583     return ConventionString(Val);
 584   case DW_AT_inline:
 585     return InlineCodeString(Val);
 586   case DW_AT_ordering:
 587     return ArrayOrderString(Val);
 588   case DW_AT_discr_value:
 589     return DiscriminantString(Val);
 590   }
 591
 592   return nullptr;
 593 }