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      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_BORLAND_property_read:      return "DW_AT_BORLAND_property_read";
    181   case DW_AT_BORLAND_property_write:     return "DW_AT_BORLAND_property_write";
    182   case DW_AT_BORLAND_property_implements: return "DW_AT_BORLAND_property_implements";
    183   case DW_AT_BORLAND_property_index:     return "DW_AT_BORLAND_property_index";
    184   case DW_AT_BORLAND_property_default:   return "DW_AT_BORLAND_property_default";
    185   case DW_AT_BORLAND_Delphi_unit:        return "DW_AT_BORLAND_Delphi_unit";
    186   case DW_AT_BORLAND_Delphi_class:       return "DW_AT_BORLAND_Delphi_class";
    187   case DW_AT_BORLAND_Delphi_record:      return "DW_AT_BORLAND_Delphi_record";
    188   case DW_AT_BORLAND_Delphi_metaclass:   return "DW_AT_BORLAND_Delphi_metaclass";
    189   case DW_AT_BORLAND_Delphi_constructor: return "DW_AT_BORLAND_Delphi_constructor";
    190   case DW_AT_BORLAND_Delphi_destructor:  return "DW_AT_BORLAND_Delphi_destructor";
    191   case DW_AT_BORLAND_Delphi_anonymous_method: return "DW_AT_BORLAND_Delphi_anonymous_method";
    192   case DW_AT_BORLAND_Delphi_interface:   return "DW_AT_BORLAND_Delphi_interface";
    193   case DW_AT_BORLAND_Delphi_ABI:         return "DW_AT_BORLAND_Delphi_ABI";
    194   case DW_AT_BORLAND_Delphi_return:      return "DW_AT_BORLAND_Delphi_return";
    195   case DW_AT_BORLAND_Delphi_frameptr:    return "DW_AT_BORLAND_Delphi_frameptr";
    196   case DW_AT_BORLAND_closure:            return "DW_AT_BORLAND_closure";
    197   case DW_AT_APPLE_optimized:            return "DW_AT_APPLE_optimized";
    198   case DW_AT_APPLE_flags:                return "DW_AT_APPLE_flags";
    199   case DW_AT_APPLE_isa:                  return "DW_AT_APPLE_isa";
    200   case DW_AT_APPLE_block:                return "DW_AT_APPLE_block";
    201   case DW_AT_APPLE_major_runtime_vers:   return "DW_AT_APPLE_major_runtime_vers";
    202   case DW_AT_APPLE_runtime_class:        return "DW_AT_APPLE_runtime_class";
    203   case DW_AT_APPLE_omit_frame_ptr:       return "DW_AT_APPLE_omit_frame_ptr";
    204   case DW_AT_APPLE_property_name:        return "DW_AT_APPLE_property_name";
    205   case DW_AT_APPLE_property_getter:      return "DW_AT_APPLE_property_getter";
    206   case DW_AT_APPLE_property_setter:      return "DW_AT_APPLE_property_setter";
    207   case DW_AT_APPLE_property_attribute:   return "DW_AT_APPLE_property_attribute";
    208   case DW_AT_APPLE_property:             return "DW_AT_APPLE_property";
    209   case DW_AT_APPLE_objc_complete_type:   return "DW_AT_APPLE_objc_complete_type";
    210   case DW_AT_LLVM_include_path:          return "DW_AT_LLVM_include_path";
    211   case DW_AT_LLVM_config_macros:         return "DW_AT_LLVM_config_macros";
    212   case DW_AT_LLVM_isysroot:              return "DW_AT_LLVM_isysroot";
    213 
    214     // DWARF5 Fission Extension Attribute
    215   case DW_AT_GNU_dwo_name:               return "DW_AT_GNU_dwo_name";
    216   case DW_AT_GNU_dwo_id:                 return "DW_AT_GNU_dwo_id";
    217   case DW_AT_GNU_ranges_base:            return "DW_AT_GNU_ranges_base";
    218   case DW_AT_GNU_addr_base:              return "DW_AT_GNU_addr_base";
    219   case DW_AT_GNU_pubnames:               return "DW_AT_GNU_pubnames";
    220   case DW_AT_GNU_pubtypes:               return "DW_AT_GNU_pubtypes";
    221   case DW_AT_GNU_discriminator:          return "DW_AT_GNU_discriminator";
    222   }
    223   return nullptr;
    224 }
    225 
    226 const char *llvm::dwarf::FormEncodingString(unsigned Encoding) {
    227   switch (Encoding) {
    228   case DW_FORM_addr:                     return "DW_FORM_addr";
    229   case DW_FORM_block2:                   return "DW_FORM_block2";
    230   case DW_FORM_block4:                   return "DW_FORM_block4";
    231   case DW_FORM_data2:                    return "DW_FORM_data2";
    232   case DW_FORM_data4:                    return "DW_FORM_data4";
    233   case DW_FORM_data8:                    return "DW_FORM_data8";
    234   case DW_FORM_string:                   return "DW_FORM_string";
    235   case DW_FORM_block:                    return "DW_FORM_block";
    236   case DW_FORM_block1:                   return "DW_FORM_block1";
    237   case DW_FORM_data1:                    return "DW_FORM_data1";
    238   case DW_FORM_flag:                     return "DW_FORM_flag";
    239   case DW_FORM_sdata:                    return "DW_FORM_sdata";
    240   case DW_FORM_strp:                     return "DW_FORM_strp";
    241   case DW_FORM_udata:                    return "DW_FORM_udata";
    242   case DW_FORM_ref_addr:                 return "DW_FORM_ref_addr";
    243   case DW_FORM_ref1:                     return "DW_FORM_ref1";
    244   case DW_FORM_ref2:                     return "DW_FORM_ref2";
    245   case DW_FORM_ref4:                     return "DW_FORM_ref4";
    246   case DW_FORM_ref8:                     return "DW_FORM_ref8";
    247   case DW_FORM_ref_udata:                return "DW_FORM_ref_udata";
    248   case DW_FORM_indirect:                 return "DW_FORM_indirect";
    249   case DW_FORM_sec_offset:               return "DW_FORM_sec_offset";
    250   case DW_FORM_exprloc:                  return "DW_FORM_exprloc";
    251   case DW_FORM_flag_present:             return "DW_FORM_flag_present";
    252   case DW_FORM_ref_sig8:                 return "DW_FORM_ref_sig8";
    253 
    254     // DWARF5 Fission Extension Forms
    255   case DW_FORM_GNU_addr_index:           return "DW_FORM_GNU_addr_index";
    256   case DW_FORM_GNU_str_index:            return "DW_FORM_GNU_str_index";
    257 
    258   // Alternate debug sections proposal (output of "dwz" tool).
    259   case DW_FORM_GNU_ref_alt:              return "DW_FORM_GNU_ref_alt";
    260   case DW_FORM_GNU_strp_alt:             return "DW_FORM_GNU_strp_alt";
    261   }
    262   return nullptr;
    263 }
    264 
    265 const char *llvm::dwarf::OperationEncodingString(unsigned Encoding) {
    266   switch (Encoding) {
    267   default: return nullptr;
    268 #define HANDLE_DW_OP(ID, NAME)                                                 \
    269   case DW_OP_##NAME:                                                           \
    270     return "DW_OP_" #NAME;
    271 #include "llvm/Support/Dwarf.def"
    272   }
    273 }
    274 
    275 unsigned llvm::dwarf::getOperationEncoding(StringRef OperationEncodingString) {
    276   return StringSwitch<unsigned>(OperationEncodingString)
    277 #define HANDLE_DW_OP(ID, NAME) .Case("DW_OP_" #NAME, DW_OP_##NAME)
    278 #include "llvm/Support/Dwarf.def"
    279       .Default(0);
    280 }
    281 
    282 const char *llvm::dwarf::AttributeEncodingString(unsigned Encoding) {
    283   switch (Encoding) {
    284   default: return nullptr;
    285 #define HANDLE_DW_ATE(ID, NAME)                                                \
    286   case DW_ATE_##NAME:                                                          \
    287     return "DW_ATE_" #NAME;
    288 #include "llvm/Support/Dwarf.def"
    289   }
    290 }
    291 
    292 unsigned llvm::dwarf::getAttributeEncoding(StringRef EncodingString) {
    293   return StringSwitch<unsigned>(EncodingString)
    294 #define HANDLE_DW_ATE(ID, NAME) .Case("DW_ATE_" #NAME, DW_ATE_##NAME)
    295 #include "llvm/Support/Dwarf.def"
    296       .Default(0);
    297 }
    298 
    299 const char *llvm::dwarf::DecimalSignString(unsigned Sign) {
    300   switch (Sign) {
    301   case DW_DS_unsigned:                   return "DW_DS_unsigned";
    302   case DW_DS_leading_overpunch:          return "DW_DS_leading_overpunch";
    303   case DW_DS_trailing_overpunch:         return "DW_DS_trailing_overpunch";
    304   case DW_DS_leading_separate:           return "DW_DS_leading_separate";
    305   case DW_DS_trailing_separate:          return "DW_DS_trailing_separate";
    306   }
    307   return nullptr;
    308 }
    309 
    310 const char *llvm::dwarf::EndianityString(unsigned Endian) {
    311   switch (Endian) {
    312   case DW_END_default:                   return "DW_END_default";
    313   case DW_END_big:                       return "DW_END_big";
    314   case DW_END_little:                    return "DW_END_little";
    315   case DW_END_lo_user:                   return "DW_END_lo_user";
    316   case DW_END_hi_user:                   return "DW_END_hi_user";
    317   }
    318   return nullptr;
    319 }
    320 
    321 const char *llvm::dwarf::AccessibilityString(unsigned Access) {
    322   switch (Access) {
    323   // Accessibility codes
    324   case DW_ACCESS_public:                 return "DW_ACCESS_public";
    325   case DW_ACCESS_protected:              return "DW_ACCESS_protected";
    326   case DW_ACCESS_private:                return "DW_ACCESS_private";
    327   }
    328   return nullptr;
    329 }
    330 
    331 const char *llvm::dwarf::VisibilityString(unsigned Visibility) {
    332   switch (Visibility) {
    333   case DW_VIS_local:                     return "DW_VIS_local";
    334   case DW_VIS_exported:                  return "DW_VIS_exported";
    335   case DW_VIS_qualified:                 return "DW_VIS_qualified";
    336   }
    337   return nullptr;
    338 }
    339 
    340 const char *llvm::dwarf::VirtualityString(unsigned Virtuality) {
    341   switch (Virtuality) {
    342   default:
    343     return nullptr;
    344 #define HANDLE_DW_VIRTUALITY(ID, NAME)                                         \
    345   case DW_VIRTUALITY_##NAME:                                                   \
    346     return "DW_VIRTUALITY_" #NAME;
    347 #include "llvm/Support/Dwarf.def"
    348   }
    349 }
    350 
    351 unsigned llvm::dwarf::getVirtuality(StringRef VirtualityString) {
    352   return StringSwitch<unsigned>(VirtualityString)
    353 #define HANDLE_DW_VIRTUALITY(ID, NAME)                                         \
    354   .Case("DW_VIRTUALITY_" #NAME, DW_VIRTUALITY_##NAME)
    355 #include "llvm/Support/Dwarf.def"
    356       .Default(DW_VIRTUALITY_invalid);
    357 }
    358 
    359 const char *llvm::dwarf::LanguageString(unsigned Language) {
    360   switch (Language) {
    361   default:
    362     return nullptr;
    363 #define HANDLE_DW_LANG(ID, NAME)                                               \
    364   case DW_LANG_##NAME:                                                         \
    365     return "DW_LANG_" #NAME;
    366 #include "llvm/Support/Dwarf.def"
    367   }
    368 }
    369 
    370 unsigned llvm::dwarf::getLanguage(StringRef LanguageString) {
    371   return StringSwitch<unsigned>(LanguageString)
    372 #define HANDLE_DW_LANG(ID, NAME) .Case("DW_LANG_" #NAME, DW_LANG_##NAME)
    373 #include "llvm/Support/Dwarf.def"
    374       .Default(0);
    375 }
    376 
    377 const char *llvm::dwarf::CaseString(unsigned Case) {
    378   switch (Case) {
    379   case DW_ID_case_sensitive:             return "DW_ID_case_sensitive";
    380   case DW_ID_up_case:                    return "DW_ID_up_case";
    381   case DW_ID_down_case:                  return "DW_ID_down_case";
    382   case DW_ID_case_insensitive:           return "DW_ID_case_insensitive";
    383   }
    384   return nullptr;
    385 }
    386 
    387 const char *llvm::dwarf::ConventionString(unsigned Convention) {
    388    switch (Convention) {
    389    case DW_CC_normal:                     return "DW_CC_normal";
    390    case DW_CC_program:                    return "DW_CC_program";
    391    case DW_CC_nocall:                     return "DW_CC_nocall";
    392    case DW_CC_lo_user:                    return "DW_CC_lo_user";
    393    case DW_CC_hi_user:                    return "DW_CC_hi_user";
    394    case DW_CC_GNU_borland_fastcall_i386:  return "DW_CC_GNU_borland_fastcall_i386";
    395    case DW_CC_BORLAND_safecall:           return "DW_CC_BORLAND_safecall";
    396    case DW_CC_BORLAND_stdcall:            return "DW_CC_BORLAND_stdcall";
    397    case DW_CC_BORLAND_pascal:             return "DW_CC_BORLAND_pascal";
    398    case DW_CC_BORLAND_msfastcall:         return "DW_CC_BORLAND_msfastcall";
    399    case DW_CC_BORLAND_msreturn:           return "DW_CC_BORLAND_msreturn";
    400    case DW_CC_BORLAND_thiscall:           return "DW_CC_BORLAND_thiscall";
    401    case DW_CC_BORLAND_fastcall:           return "DW_CC_BORLAND_fastcall";
    402   }
    403   return nullptr;
    404 }
    405 
    406 const char *llvm::dwarf::InlineCodeString(unsigned Code) {
    407   switch (Code) {
    408   case DW_INL_not_inlined:               return "DW_INL_not_inlined";
    409   case DW_INL_inlined:                   return "DW_INL_inlined";
    410   case DW_INL_declared_not_inlined:      return "DW_INL_declared_not_inlined";
    411   case DW_INL_declared_inlined:          return "DW_INL_declared_inlined";
    412   }
    413   return nullptr;
    414 }
    415 
    416 const char *llvm::dwarf::ArrayOrderString(unsigned Order) {
    417   switch (Order) {
    418   case DW_ORD_row_major:                 return "DW_ORD_row_major";
    419   case DW_ORD_col_major:                 return "DW_ORD_col_major";
    420   }
    421   return nullptr;
    422 }
    423 
    424 const char *llvm::dwarf::DiscriminantString(unsigned Discriminant) {
    425   switch (Discriminant) {
    426   case DW_DSC_label:                     return "DW_DSC_label";
    427   case DW_DSC_range:                     return "DW_DSC_range";
    428   }
    429   return nullptr;
    430 }
    431 
    432 const char *llvm::dwarf::LNStandardString(unsigned Standard) {
    433   switch (Standard) {
    434   case DW_LNS_copy:                      return "DW_LNS_copy";
    435   case DW_LNS_advance_pc:                return "DW_LNS_advance_pc";
    436   case DW_LNS_advance_line:              return "DW_LNS_advance_line";
    437   case DW_LNS_set_file:                  return "DW_LNS_set_file";
    438   case DW_LNS_set_column:                return "DW_LNS_set_column";
    439   case DW_LNS_negate_stmt:               return "DW_LNS_negate_stmt";
    440   case DW_LNS_set_basic_block:           return "DW_LNS_set_basic_block";
    441   case DW_LNS_const_add_pc:              return "DW_LNS_const_add_pc";
    442   case DW_LNS_fixed_advance_pc:          return "DW_LNS_fixed_advance_pc";
    443   case DW_LNS_set_prologue_end:          return "DW_LNS_set_prologue_end";
    444   case DW_LNS_set_epilogue_begin:        return "DW_LNS_set_epilogue_begin";
    445   case DW_LNS_set_isa:                   return "DW_LNS_set_isa";
    446   }
    447   return nullptr;
    448 }
    449 
    450 const char *llvm::dwarf::LNExtendedString(unsigned Encoding) {
    451   switch (Encoding) {
    452   // Line Number Extended Opcode Encodings
    453   case DW_LNE_end_sequence:              return "DW_LNE_end_sequence";
    454   case DW_LNE_set_address:               return "DW_LNE_set_address";
    455   case DW_LNE_define_file:               return "DW_LNE_define_file";
    456   case DW_LNE_set_discriminator:         return "DW_LNE_set_discriminator";
    457   case DW_LNE_lo_user:                   return "DW_LNE_lo_user";
    458   case DW_LNE_hi_user:                   return "DW_LNE_hi_user";
    459   }
    460   return nullptr;
    461 }
    462 
    463 const char *llvm::dwarf::MacinfoString(unsigned Encoding) {
    464   switch (Encoding) {
    465   // Macinfo Type Encodings
    466   case DW_MACINFO_define:                return "DW_MACINFO_define";
    467   case DW_MACINFO_undef:                 return "DW_MACINFO_undef";
    468   case DW_MACINFO_start_file:            return "DW_MACINFO_start_file";
    469   case DW_MACINFO_end_file:              return "DW_MACINFO_end_file";
    470   case DW_MACINFO_vendor_ext:            return "DW_MACINFO_vendor_ext";
    471   case DW_MACINFO_invalid:               return "DW_MACINFO_invalid";
    472   }
    473   return nullptr;
    474 }
    475 
    476 unsigned llvm::dwarf::getMacinfo(StringRef MacinfoString) {
    477   return StringSwitch<unsigned>(MacinfoString)
    478       .Case("DW_MACINFO_define", DW_MACINFO_define)
    479       .Case("DW_MACINFO_undef", DW_MACINFO_undef)
    480       .Case("DW_MACINFO_start_file", DW_MACINFO_start_file)
    481       .Case("DW_MACINFO_end_file", DW_MACINFO_end_file)
    482       .Case("DW_MACINFO_vendor_ext", DW_MACINFO_vendor_ext)
    483       .Default(DW_MACINFO_invalid);
    484 }
    485 
    486 const char *llvm::dwarf::CallFrameString(unsigned Encoding) {
    487   switch (Encoding) {
    488   case DW_CFA_nop:                       return "DW_CFA_nop";
    489   case DW_CFA_advance_loc:               return "DW_CFA_advance_loc";
    490   case DW_CFA_offset:                    return "DW_CFA_offset";
    491   case DW_CFA_restore:                   return "DW_CFA_restore";
    492   case DW_CFA_set_loc:                   return "DW_CFA_set_loc";
    493   case DW_CFA_advance_loc1:              return "DW_CFA_advance_loc1";
    494   case DW_CFA_advance_loc2:              return "DW_CFA_advance_loc2";
    495   case DW_CFA_advance_loc4:              return "DW_CFA_advance_loc4";
    496   case DW_CFA_offset_extended:           return "DW_CFA_offset_extended";
    497   case DW_CFA_restore_extended:          return "DW_CFA_restore_extended";
    498   case DW_CFA_undefined:                 return "DW_CFA_undefined";
    499   case DW_CFA_same_value:                return "DW_CFA_same_value";
    500   case DW_CFA_register:                  return "DW_CFA_register";
    501   case DW_CFA_remember_state:            return "DW_CFA_remember_state";
    502   case DW_CFA_restore_state:             return "DW_CFA_restore_state";
    503   case DW_CFA_def_cfa:                   return "DW_CFA_def_cfa";
    504   case DW_CFA_def_cfa_register:          return "DW_CFA_def_cfa_register";
    505   case DW_CFA_def_cfa_offset:            return "DW_CFA_def_cfa_offset";
    506   case DW_CFA_def_cfa_expression:        return "DW_CFA_def_cfa_expression";
    507   case DW_CFA_expression:                return "DW_CFA_expression";
    508   case DW_CFA_offset_extended_sf:        return "DW_CFA_offset_extended_sf";
    509   case DW_CFA_def_cfa_sf:                return "DW_CFA_def_cfa_sf";
    510   case DW_CFA_def_cfa_offset_sf:         return "DW_CFA_def_cfa_offset_sf";
    511   case DW_CFA_val_offset:                return "DW_CFA_val_offset";
    512   case DW_CFA_val_offset_sf:             return "DW_CFA_val_offset_sf";
    513   case DW_CFA_val_expression:            return "DW_CFA_val_expression";
    514   case DW_CFA_MIPS_advance_loc8:         return "DW_CFA_MIPS_advance_loc8";
    515   case DW_CFA_GNU_window_save:           return "DW_CFA_GNU_window_save";
    516   case DW_CFA_GNU_args_size:             return "DW_CFA_GNU_args_size";
    517   case DW_CFA_lo_user:                   return "DW_CFA_lo_user";
    518   case DW_CFA_hi_user:                   return "DW_CFA_hi_user";
    519   }
    520   return nullptr;
    521 }
    522 
    523 const char *llvm::dwarf::ApplePropertyString(unsigned Prop) {
    524   switch (Prop) {
    525   case DW_APPLE_PROPERTY_readonly:
    526     return "DW_APPLE_PROPERTY_readonly";
    527   case DW_APPLE_PROPERTY_getter:
    528     return "DW_APPLE_PROPERTY_getter";
    529   case DW_APPLE_PROPERTY_assign:
    530     return "DW_APPLE_PROPERTY_assign";
    531   case DW_APPLE_PROPERTY_readwrite:
    532     return "DW_APPLE_PROPERTY_readwrite";
    533   case DW_APPLE_PROPERTY_retain:
    534     return "DW_APPLE_PROPERTY_retain";
    535   case DW_APPLE_PROPERTY_copy:
    536     return "DW_APPLE_PROPERTY_copy";
    537   case DW_APPLE_PROPERTY_nonatomic:
    538     return "DW_APPLE_PROPERTY_nonatomic";
    539   case DW_APPLE_PROPERTY_setter:
    540     return "DW_APPLE_PROPERTY_setter";
    541   case DW_APPLE_PROPERTY_atomic:
    542     return "DW_APPLE_PROPERTY_atomic";
    543   case DW_APPLE_PROPERTY_weak:
    544     return "DW_APPLE_PROPERTY_weak";
    545   case DW_APPLE_PROPERTY_strong:
    546     return "DW_APPLE_PROPERTY_strong";
    547   case DW_APPLE_PROPERTY_unsafe_unretained:
    548     return "DW_APPLE_PROPERTY_unsafe_unretained";
    549   }
    550   return nullptr;
    551 }
    552 
    553 const char *llvm::dwarf::AtomTypeString(unsigned AT) {
    554   switch (AT) {
    555   case dwarf::DW_ATOM_null:
    556     return "DW_ATOM_null";
    557   case dwarf::DW_ATOM_die_offset:
    558     return "DW_ATOM_die_offset";
    559   case DW_ATOM_cu_offset:
    560     return "DW_ATOM_cu_offset";
    561   case DW_ATOM_die_tag:
    562     return "DW_ATOM_die_tag";
    563   case DW_ATOM_type_flags:
    564     return "DW_ATOM_type_flags";
    565   }
    566   return nullptr;
    567 }
    568 
    569 const char *llvm::dwarf::GDBIndexEntryKindString(GDBIndexEntryKind Kind) {
    570   switch (Kind) {
    571   case GIEK_NONE:
    572     return "NONE";
    573   case GIEK_TYPE:
    574     return "TYPE";
    575   case GIEK_VARIABLE:
    576     return "VARIABLE";
    577   case GIEK_FUNCTION:
    578     return "FUNCTION";
    579   case GIEK_OTHER:
    580     return "OTHER";
    581   case GIEK_UNUSED5:
    582     return "UNUSED5";
    583   case GIEK_UNUSED6:
    584     return "UNUSED6";
    585   case GIEK_UNUSED7:
    586     return "UNUSED7";
    587   }
    588   llvm_unreachable("Unknown GDBIndexEntryKind value");
    589 }
    590 
    591 const char *llvm::dwarf::GDBIndexEntryLinkageString(GDBIndexEntryLinkage Linkage) {
    592   switch (Linkage) {
    593   case GIEL_EXTERNAL:
    594     return "EXTERNAL";
    595   case GIEL_STATIC:
    596     return "STATIC";
    597   }
    598   llvm_unreachable("Unknown GDBIndexEntryLinkage value");
    599 }
    600 
    601 const char *llvm::dwarf::AttributeValueString(uint16_t Attr, unsigned Val) {
    602   switch (Attr) {
    603   case DW_AT_accessibility:
    604     return AccessibilityString(Val);
    605   case DW_AT_virtuality:
    606     return VirtualityString(Val);
    607   case DW_AT_language:
    608     return LanguageString(Val);
    609   case DW_AT_encoding:
    610     return AttributeEncodingString(Val);
    611   case DW_AT_decimal_sign:
    612     return DecimalSignString(Val);
    613   case DW_AT_endianity:
    614     return EndianityString(Val);
    615   case DW_AT_visibility:
    616     return VisibilityString(Val);
    617   case DW_AT_identifier_case:
    618     return CaseString(Val);
    619   case DW_AT_calling_convention:
    620     return ConventionString(Val);
    621   case DW_AT_inline:
    622     return InlineCodeString(Val);
    623   case DW_AT_ordering:
    624     return ArrayOrderString(Val);
    625   case DW_AT_discr_value:
    626     return DiscriminantString(Val);
    627   }
    628 
    629   return nullptr;
    630 }
    631