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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/Support/ErrorHandling.h"
     16 
     17 using namespace llvm;
     18 using namespace dwarf;
     19 
     20 /// TagString - Return the string for the specified tag.
     21 ///
     22 const char *llvm::dwarf::TagString(unsigned Tag) {
     23   switch (Tag) {
     24   case DW_TAG_array_type:                return "DW_TAG_array_type";
     25   case DW_TAG_class_type:                return "DW_TAG_class_type";
     26   case DW_TAG_entry_point:               return "DW_TAG_entry_point";
     27   case DW_TAG_enumeration_type:          return "DW_TAG_enumeration_type";
     28   case DW_TAG_formal_parameter:          return "DW_TAG_formal_parameter";
     29   case DW_TAG_imported_declaration:      return "DW_TAG_imported_declaration";
     30   case DW_TAG_label:                     return "DW_TAG_label";
     31   case DW_TAG_lexical_block:             return "DW_TAG_lexical_block";
     32   case DW_TAG_member:                    return "DW_TAG_member";
     33   case DW_TAG_pointer_type:              return "DW_TAG_pointer_type";
     34   case DW_TAG_reference_type:            return "DW_TAG_reference_type";
     35   case DW_TAG_compile_unit:              return "DW_TAG_compile_unit";
     36   case DW_TAG_string_type:               return "DW_TAG_string_type";
     37   case DW_TAG_structure_type:            return "DW_TAG_structure_type";
     38   case DW_TAG_subroutine_type:           return "DW_TAG_subroutine_type";
     39   case DW_TAG_typedef:                   return "DW_TAG_typedef";
     40   case DW_TAG_union_type:                return "DW_TAG_union_type";
     41   case DW_TAG_unspecified_parameters:    return "DW_TAG_unspecified_parameters";
     42   case DW_TAG_variant:                   return "DW_TAG_variant";
     43   case DW_TAG_common_block:              return "DW_TAG_common_block";
     44   case DW_TAG_common_inclusion:          return "DW_TAG_common_inclusion";
     45   case DW_TAG_inheritance:               return "DW_TAG_inheritance";
     46   case DW_TAG_inlined_subroutine:        return "DW_TAG_inlined_subroutine";
     47   case DW_TAG_module:                    return "DW_TAG_module";
     48   case DW_TAG_ptr_to_member_type:        return "DW_TAG_ptr_to_member_type";
     49   case DW_TAG_set_type:                  return "DW_TAG_set_type";
     50   case DW_TAG_subrange_type:             return "DW_TAG_subrange_type";
     51   case DW_TAG_with_stmt:                 return "DW_TAG_with_stmt";
     52   case DW_TAG_access_declaration:        return "DW_TAG_access_declaration";
     53   case DW_TAG_base_type:                 return "DW_TAG_base_type";
     54   case DW_TAG_catch_block:               return "DW_TAG_catch_block";
     55   case DW_TAG_const_type:                return "DW_TAG_const_type";
     56   case DW_TAG_constant:                  return "DW_TAG_constant";
     57   case DW_TAG_enumerator:                return "DW_TAG_enumerator";
     58   case DW_TAG_file_type:                 return "DW_TAG_file_type";
     59   case DW_TAG_friend:                    return "DW_TAG_friend";
     60   case DW_TAG_namelist:                  return "DW_TAG_namelist";
     61   case DW_TAG_namelist_item:             return "DW_TAG_namelist_item";
     62   case DW_TAG_packed_type:               return "DW_TAG_packed_type";
     63   case DW_TAG_subprogram:                return "DW_TAG_subprogram";
     64   case DW_TAG_template_type_parameter:   return "DW_TAG_template_type_parameter";
     65   case DW_TAG_template_value_parameter:  return "DW_TAG_template_value_parameter";
     66   case DW_TAG_thrown_type:               return "DW_TAG_thrown_type";
     67   case DW_TAG_try_block:                 return "DW_TAG_try_block";
     68   case DW_TAG_variant_part:              return "DW_TAG_variant_part";
     69   case DW_TAG_variable:                  return "DW_TAG_variable";
     70   case DW_TAG_volatile_type:             return "DW_TAG_volatile_type";
     71   case DW_TAG_dwarf_procedure:           return "DW_TAG_dwarf_procedure";
     72   case DW_TAG_restrict_type:             return "DW_TAG_restrict_type";
     73   case DW_TAG_interface_type:            return "DW_TAG_interface_type";
     74   case DW_TAG_namespace:                 return "DW_TAG_namespace";
     75   case DW_TAG_imported_module:           return "DW_TAG_imported_module";
     76   case DW_TAG_unspecified_type:          return "DW_TAG_unspecified_type";
     77   case DW_TAG_partial_unit:              return "DW_TAG_partial_unit";
     78   case DW_TAG_imported_unit:             return "DW_TAG_imported_unit";
     79   case DW_TAG_condition:                 return "DW_TAG_condition";
     80   case DW_TAG_shared_type:               return "DW_TAG_shared_type";
     81   case DW_TAG_lo_user:                   return "DW_TAG_lo_user";
     82   case DW_TAG_hi_user:                   return "DW_TAG_hi_user";
     83   case DW_TAG_auto_variable:             return "DW_TAG_auto_variable";
     84   case DW_TAG_arg_variable:              return "DW_TAG_arg_variable";
     85   case DW_TAG_rvalue_reference_type:     return "DW_TAG_rvalue_reference_type";
     86   case DW_TAG_template_alias:            return "DW_TAG_template_alias";
     87   case DW_TAG_coarray_type:              return "DW_TAG_coarray_type";
     88   case DW_TAG_generic_subrange:          return "DW_TAG_generic_subrange";
     89   case DW_TAG_dynamic_type:              return "DW_TAG_dynamic_type";
     90   case DW_TAG_MIPS_loop:                 return "DW_TAG_MIPS_loop";
     91   case DW_TAG_type_unit:                 return "DW_TAG_type_unit";
     92   case DW_TAG_format_label:              return "DW_TAG_format_label";
     93   case DW_TAG_function_template:         return "DW_TAG_function_template";
     94   case DW_TAG_class_template:            return "DW_TAG_class_template";
     95   case DW_TAG_GNU_template_template_param:
     96     return "DW_TAG_GNU_template_template_param";
     97   case DW_TAG_GNU_template_parameter_pack:
     98     return "DW_TAG_GNU_template_parameter_pack";
     99   case DW_TAG_GNU_formal_parameter_pack:
    100     return "DW_TAG_GNU_formal_parameter_pack";
    101   case DW_TAG_APPLE_property:            return "DW_TAG_APPLE_property";
    102   }
    103   return nullptr;
    104 }
    105 
    106 /// ChildrenString - Return the string for the specified children flag.
    107 ///
    108 const char *llvm::dwarf::ChildrenString(unsigned Children) {
    109   switch (Children) {
    110   case DW_CHILDREN_no:                   return "DW_CHILDREN_no";
    111   case DW_CHILDREN_yes:                  return "DW_CHILDREN_yes";
    112   }
    113   return nullptr;
    114 }
    115 
    116 /// AttributeString - Return the string for the specified attribute.
    117 ///
    118 const char *llvm::dwarf::AttributeString(unsigned Attribute) {
    119   switch (Attribute) {
    120   case DW_AT_sibling:                    return "DW_AT_sibling";
    121   case DW_AT_location:                   return "DW_AT_location";
    122   case DW_AT_name:                       return "DW_AT_name";
    123   case DW_AT_ordering:                   return "DW_AT_ordering";
    124   case DW_AT_byte_size:                  return "DW_AT_byte_size";
    125   case DW_AT_bit_offset:                 return "DW_AT_bit_offset";
    126   case DW_AT_bit_size:                   return "DW_AT_bit_size";
    127   case DW_AT_stmt_list:                  return "DW_AT_stmt_list";
    128   case DW_AT_low_pc:                     return "DW_AT_low_pc";
    129   case DW_AT_high_pc:                    return "DW_AT_high_pc";
    130   case DW_AT_language:                   return "DW_AT_language";
    131   case DW_AT_discr:                      return "DW_AT_discr";
    132   case DW_AT_discr_value:                return "DW_AT_discr_value";
    133   case DW_AT_visibility:                 return "DW_AT_visibility";
    134   case DW_AT_import:                     return "DW_AT_import";
    135   case DW_AT_string_length:              return "DW_AT_string_length";
    136   case DW_AT_common_reference:           return "DW_AT_common_reference";
    137   case DW_AT_comp_dir:                   return "DW_AT_comp_dir";
    138   case DW_AT_const_value:                return "DW_AT_const_value";
    139   case DW_AT_containing_type:            return "DW_AT_containing_type";
    140   case DW_AT_default_value:              return "DW_AT_default_value";
    141   case DW_AT_inline:                     return "DW_AT_inline";
    142   case DW_AT_is_optional:                return "DW_AT_is_optional";
    143   case DW_AT_lower_bound:                return "DW_AT_lower_bound";
    144   case DW_AT_producer:                   return "DW_AT_producer";
    145   case DW_AT_prototyped:                 return "DW_AT_prototyped";
    146   case DW_AT_return_addr:                return "DW_AT_return_addr";
    147   case DW_AT_start_scope:                return "DW_AT_start_scope";
    148   case DW_AT_bit_stride:                 return "DW_AT_bit_stride";
    149   case DW_AT_upper_bound:                return "DW_AT_upper_bound";
    150   case DW_AT_abstract_origin:            return "DW_AT_abstract_origin";
    151   case DW_AT_accessibility:              return "DW_AT_accessibility";
    152   case DW_AT_address_class:              return "DW_AT_address_class";
    153   case DW_AT_artificial:                 return "DW_AT_artificial";
    154   case DW_AT_base_types:                 return "DW_AT_base_types";
    155   case DW_AT_calling_convention:         return "DW_AT_calling_convention";
    156   case DW_AT_count:                      return "DW_AT_count";
    157   case DW_AT_data_member_location:       return "DW_AT_data_member_location";
    158   case DW_AT_decl_column:                return "DW_AT_decl_column";
    159   case DW_AT_decl_file:                  return "DW_AT_decl_file";
    160   case DW_AT_decl_line:                  return "DW_AT_decl_line";
    161   case DW_AT_declaration:                return "DW_AT_declaration";
    162   case DW_AT_discr_list:                 return "DW_AT_discr_list";
    163   case DW_AT_encoding:                   return "DW_AT_encoding";
    164   case DW_AT_external:                   return "DW_AT_external";
    165   case DW_AT_frame_base:                 return "DW_AT_frame_base";
    166   case DW_AT_friend:                     return "DW_AT_friend";
    167   case DW_AT_identifier_case:            return "DW_AT_identifier_case";
    168   case DW_AT_macro_info:                 return "DW_AT_macro_info";
    169   case DW_AT_namelist_item:              return "DW_AT_namelist_item";
    170   case DW_AT_priority:                   return "DW_AT_priority";
    171   case DW_AT_segment:                    return "DW_AT_segment";
    172   case DW_AT_specification:              return "DW_AT_specification";
    173   case DW_AT_static_link:                return "DW_AT_static_link";
    174   case DW_AT_type:                       return "DW_AT_type";
    175   case DW_AT_use_location:               return "DW_AT_use_location";
    176   case DW_AT_variable_parameter:         return "DW_AT_variable_parameter";
    177   case DW_AT_virtuality:                 return "DW_AT_virtuality";
    178   case DW_AT_vtable_elem_location:       return "DW_AT_vtable_elem_location";
    179   case DW_AT_allocated:                  return "DW_AT_allocated";
    180   case DW_AT_associated:                 return "DW_AT_associated";
    181   case DW_AT_data_location:              return "DW_AT_data_location";
    182   case DW_AT_byte_stride:                return "DW_AT_byte_stride";
    183   case DW_AT_entry_pc:                   return "DW_AT_entry_pc";
    184   case DW_AT_use_UTF8:                   return "DW_AT_use_UTF8";
    185   case DW_AT_extension:                  return "DW_AT_extension";
    186   case DW_AT_ranges:                     return "DW_AT_ranges";
    187   case DW_AT_trampoline:                 return "DW_AT_trampoline";
    188   case DW_AT_call_column:                return "DW_AT_call_column";
    189   case DW_AT_call_file:                  return "DW_AT_call_file";
    190   case DW_AT_call_line:                  return "DW_AT_call_line";
    191   case DW_AT_description:                return "DW_AT_description";
    192   case DW_AT_binary_scale:               return "DW_AT_binary_scale";
    193   case DW_AT_decimal_scale:              return "DW_AT_decimal_scale";
    194   case DW_AT_small:                      return "DW_AT_small";
    195   case DW_AT_decimal_sign:               return "DW_AT_decimal_sign";
    196   case DW_AT_digit_count:                return "DW_AT_digit_count";
    197   case DW_AT_picture_string:             return "DW_AT_picture_string";
    198   case DW_AT_mutable:                    return "DW_AT_mutable";
    199   case DW_AT_threads_scaled:             return "DW_AT_threads_scaled";
    200   case DW_AT_explicit:                   return "DW_AT_explicit";
    201   case DW_AT_object_pointer:             return "DW_AT_object_pointer";
    202   case DW_AT_endianity:                  return "DW_AT_endianity";
    203   case DW_AT_elemental:                  return "DW_AT_elemental";
    204   case DW_AT_pure:                       return "DW_AT_pure";
    205   case DW_AT_recursive:                  return "DW_AT_recursive";
    206   case DW_AT_signature:                  return "DW_AT_signature";
    207   case DW_AT_main_subprogram:            return "DW_AT_main_subprogram";
    208   case DW_AT_data_bit_offset:            return "DW_AT_data_bit_offset";
    209   case DW_AT_const_expr:                 return "DW_AT_const_expr";
    210   case DW_AT_enum_class:                 return "DW_AT_enum_class";
    211   case DW_AT_linkage_name:               return "DW_AT_linkage_name";
    212   case DW_AT_string_length_bit_size:     return "DW_AT_string_length_bit_size";
    213   case DW_AT_string_length_byte_size:    return "DW_AT_string_length_byte_size";
    214   case DW_AT_rank:                       return "DW_AT_rank";
    215   case DW_AT_str_offsets_base:           return "DW_AT_str_offsets_base";
    216   case DW_AT_addr_base:                  return "DW_AT_addr_base";
    217   case DW_AT_ranges_base:                return "DW_AT_ranges_base";
    218   case DW_AT_dwo_id:                     return "DW_AT_dwo_id";
    219   case DW_AT_dwo_name:                   return "DW_AT_dwo_name";
    220   case DW_AT_reference:                  return "DW_AT_reference";
    221   case DW_AT_rvalue_reference:           return "DW_AT_rvalue_reference";
    222   case DW_AT_MIPS_loop_begin:            return "DW_AT_MIPS_loop_begin";
    223   case DW_AT_MIPS_tail_loop_begin:       return "DW_AT_MIPS_tail_loop_begin";
    224   case DW_AT_MIPS_epilog_begin:          return "DW_AT_MIPS_epilog_begin";
    225   case DW_AT_MIPS_loop_unroll_factor:    return "DW_AT_MIPS_loop_unroll_factor";
    226   case DW_AT_MIPS_software_pipeline_depth:
    227     return "DW_AT_MIPS_software_pipeline_depth";
    228   case DW_AT_MIPS_linkage_name:          return "DW_AT_MIPS_linkage_name";
    229   case DW_AT_MIPS_stride:                return "DW_AT_MIPS_stride";
    230   case DW_AT_MIPS_abstract_name:         return "DW_AT_MIPS_abstract_name";
    231   case DW_AT_MIPS_clone_origin:          return "DW_AT_MIPS_clone_origin";
    232   case DW_AT_MIPS_has_inlines:           return "DW_AT_MIPS_has_inlines";
    233   case DW_AT_MIPS_stride_byte:           return "DW_AT_MIPS_stride_byte";
    234   case DW_AT_MIPS_stride_elem:           return "DW_AT_MIPS_stride_elem";
    235   case DW_AT_MIPS_ptr_dopetype:          return "DW_AT_MIPS_ptr_dopetype";
    236   case DW_AT_MIPS_allocatable_dopetype:
    237     return "DW_AT_MIPS_allocatable_dopetype";
    238   case DW_AT_MIPS_assumed_shape_dopetype:
    239     return "DW_AT_MIPS_assumed_shape_dopetype";
    240   case DW_AT_sf_names:                   return "DW_AT_sf_names";
    241   case DW_AT_src_info:                   return "DW_AT_src_info";
    242   case DW_AT_mac_info:                   return "DW_AT_mac_info";
    243   case DW_AT_src_coords:                 return "DW_AT_src_coords";
    244   case DW_AT_body_begin:                 return "DW_AT_body_begin";
    245   case DW_AT_body_end:                   return "DW_AT_body_end";
    246   case DW_AT_GNU_vector:                 return "DW_AT_GNU_vector";
    247   case DW_AT_GNU_template_name:          return "DW_AT_GNU_template_name";
    248   case DW_AT_GNU_odr_signature:          return "DW_AT_GNU_odr_signature";
    249   case DW_AT_MIPS_assumed_size:          return "DW_AT_MIPS_assumed_size";
    250   case DW_AT_lo_user:                    return "DW_AT_lo_user";
    251   case DW_AT_hi_user:                    return "DW_AT_hi_user";
    252   case DW_AT_APPLE_optimized:            return "DW_AT_APPLE_optimized";
    253   case DW_AT_APPLE_flags:                return "DW_AT_APPLE_flags";
    254   case DW_AT_APPLE_isa:                  return "DW_AT_APPLE_isa";
    255   case DW_AT_APPLE_block:                return "DW_AT_APPLE_block";
    256   case DW_AT_APPLE_major_runtime_vers:   return "DW_AT_APPLE_major_runtime_vers";
    257   case DW_AT_APPLE_runtime_class:        return "DW_AT_APPLE_runtime_class";
    258   case DW_AT_APPLE_omit_frame_ptr:       return "DW_AT_APPLE_omit_frame_ptr";
    259   case DW_AT_APPLE_property_name:        return "DW_AT_APPLE_property_name";
    260   case DW_AT_APPLE_property_getter:      return "DW_AT_APPLE_property_getter";
    261   case DW_AT_APPLE_property_setter:      return "DW_AT_APPLE_property_setter";
    262   case DW_AT_APPLE_property_attribute:   return "DW_AT_APPLE_property_attribute";
    263   case DW_AT_APPLE_property:             return "DW_AT_APPLE_property";
    264   case DW_AT_APPLE_objc_complete_type:   return "DW_AT_APPLE_objc_complete_type";
    265 
    266     // DWARF5 Fission Extension Attribute
    267   case DW_AT_GNU_dwo_name:               return "DW_AT_GNU_dwo_name";
    268   case DW_AT_GNU_dwo_id:                 return "DW_AT_GNU_dwo_id";
    269   case DW_AT_GNU_ranges_base:            return "DW_AT_GNU_ranges_base";
    270   case DW_AT_GNU_addr_base:              return "DW_AT_GNU_addr_base";
    271   case DW_AT_GNU_pubnames:               return "DW_AT_GNU_pubnames";
    272   case DW_AT_GNU_pubtypes:               return "DW_AT_GNU_pubtypes";
    273   }
    274   return nullptr;
    275 }
    276 
    277 /// FormEncodingString - Return the string for the specified form encoding.
    278 ///
    279 const char *llvm::dwarf::FormEncodingString(unsigned Encoding) {
    280   switch (Encoding) {
    281   case DW_FORM_addr:                     return "DW_FORM_addr";
    282   case DW_FORM_block2:                   return "DW_FORM_block2";
    283   case DW_FORM_block4:                   return "DW_FORM_block4";
    284   case DW_FORM_data2:                    return "DW_FORM_data2";
    285   case DW_FORM_data4:                    return "DW_FORM_data4";
    286   case DW_FORM_data8:                    return "DW_FORM_data8";
    287   case DW_FORM_string:                   return "DW_FORM_string";
    288   case DW_FORM_block:                    return "DW_FORM_block";
    289   case DW_FORM_block1:                   return "DW_FORM_block1";
    290   case DW_FORM_data1:                    return "DW_FORM_data1";
    291   case DW_FORM_flag:                     return "DW_FORM_flag";
    292   case DW_FORM_sdata:                    return "DW_FORM_sdata";
    293   case DW_FORM_strp:                     return "DW_FORM_strp";
    294   case DW_FORM_udata:                    return "DW_FORM_udata";
    295   case DW_FORM_ref_addr:                 return "DW_FORM_ref_addr";
    296   case DW_FORM_ref1:                     return "DW_FORM_ref1";
    297   case DW_FORM_ref2:                     return "DW_FORM_ref2";
    298   case DW_FORM_ref4:                     return "DW_FORM_ref4";
    299   case DW_FORM_ref8:                     return "DW_FORM_ref8";
    300   case DW_FORM_ref_udata:                return "DW_FORM_ref_udata";
    301   case DW_FORM_indirect:                 return "DW_FORM_indirect";
    302   case DW_FORM_sec_offset:               return "DW_FORM_sec_offset";
    303   case DW_FORM_exprloc:                  return "DW_FORM_exprloc";
    304   case DW_FORM_flag_present:             return "DW_FORM_flag_present";
    305   case DW_FORM_ref_sig8:                 return "DW_FORM_ref_sig8";
    306 
    307     // DWARF5 Fission Extension Forms
    308   case DW_FORM_GNU_addr_index:           return "DW_FORM_GNU_addr_index";
    309   case DW_FORM_GNU_str_index:            return "DW_FORM_GNU_str_index";
    310   }
    311   return nullptr;
    312 }
    313 
    314 /// OperationEncodingString - Return the string for the specified operation
    315 /// encoding.
    316 const char *llvm::dwarf::OperationEncodingString(unsigned Encoding) {
    317   switch (Encoding) {
    318   case DW_OP_addr:                       return "DW_OP_addr";
    319   case DW_OP_deref:                      return "DW_OP_deref";
    320   case DW_OP_const1u:                    return "DW_OP_const1u";
    321   case DW_OP_const1s:                    return "DW_OP_const1s";
    322   case DW_OP_const2u:                    return "DW_OP_const2u";
    323   case DW_OP_const2s:                    return "DW_OP_const2s";
    324   case DW_OP_const4u:                    return "DW_OP_const4u";
    325   case DW_OP_const4s:                    return "DW_OP_const4s";
    326   case DW_OP_const8u:                    return "DW_OP_const8u";
    327   case DW_OP_const8s:                    return "DW_OP_const8s";
    328   case DW_OP_constu:                     return "DW_OP_constu";
    329   case DW_OP_consts:                     return "DW_OP_consts";
    330   case DW_OP_dup:                        return "DW_OP_dup";
    331   case DW_OP_drop:                       return "DW_OP_drop";
    332   case DW_OP_over:                       return "DW_OP_over";
    333   case DW_OP_pick:                       return "DW_OP_pick";
    334   case DW_OP_swap:                       return "DW_OP_swap";
    335   case DW_OP_rot:                        return "DW_OP_rot";
    336   case DW_OP_xderef:                     return "DW_OP_xderef";
    337   case DW_OP_abs:                        return "DW_OP_abs";
    338   case DW_OP_and:                        return "DW_OP_and";
    339   case DW_OP_div:                        return "DW_OP_div";
    340   case DW_OP_minus:                      return "DW_OP_minus";
    341   case DW_OP_mod:                        return "DW_OP_mod";
    342   case DW_OP_mul:                        return "DW_OP_mul";
    343   case DW_OP_neg:                        return "DW_OP_neg";
    344   case DW_OP_not:                        return "DW_OP_not";
    345   case DW_OP_or:                         return "DW_OP_or";
    346   case DW_OP_plus:                       return "DW_OP_plus";
    347   case DW_OP_plus_uconst:                return "DW_OP_plus_uconst";
    348   case DW_OP_shl:                        return "DW_OP_shl";
    349   case DW_OP_shr:                        return "DW_OP_shr";
    350   case DW_OP_shra:                       return "DW_OP_shra";
    351   case DW_OP_xor:                        return "DW_OP_xor";
    352   case DW_OP_skip:                       return "DW_OP_skip";
    353   case DW_OP_bra:                        return "DW_OP_bra";
    354   case DW_OP_eq:                         return "DW_OP_eq";
    355   case DW_OP_ge:                         return "DW_OP_ge";
    356   case DW_OP_gt:                         return "DW_OP_gt";
    357   case DW_OP_le:                         return "DW_OP_le";
    358   case DW_OP_lt:                         return "DW_OP_lt";
    359   case DW_OP_ne:                         return "DW_OP_ne";
    360   case DW_OP_lit0:                       return "DW_OP_lit0";
    361   case DW_OP_lit1:                       return "DW_OP_lit1";
    362   case DW_OP_lit2:                       return "DW_OP_lit2";
    363   case DW_OP_lit3:                       return "DW_OP_lit3";
    364   case DW_OP_lit4:                       return "DW_OP_lit4";
    365   case DW_OP_lit5:                       return "DW_OP_lit5";
    366   case DW_OP_lit6:                       return "DW_OP_lit6";
    367   case DW_OP_lit7:                       return "DW_OP_lit7";
    368   case DW_OP_lit8:                       return "DW_OP_lit8";
    369   case DW_OP_lit9:                       return "DW_OP_lit9";
    370   case DW_OP_lit10:                      return "DW_OP_lit10";
    371   case DW_OP_lit11:                      return "DW_OP_lit11";
    372   case DW_OP_lit12:                      return "DW_OP_lit12";
    373   case DW_OP_lit13:                      return "DW_OP_lit13";
    374   case DW_OP_lit14:                      return "DW_OP_lit14";
    375   case DW_OP_lit15:                      return "DW_OP_lit15";
    376   case DW_OP_lit16:                      return "DW_OP_lit16";
    377   case DW_OP_lit17:                      return "DW_OP_lit17";
    378   case DW_OP_lit18:                      return "DW_OP_lit18";
    379   case DW_OP_lit19:                      return "DW_OP_lit19";
    380   case DW_OP_lit20:                      return "DW_OP_lit20";
    381   case DW_OP_lit21:                      return "DW_OP_lit21";
    382   case DW_OP_lit22:                      return "DW_OP_lit22";
    383   case DW_OP_lit23:                      return "DW_OP_lit23";
    384   case DW_OP_lit24:                      return "DW_OP_lit24";
    385   case DW_OP_lit25:                      return "DW_OP_lit25";
    386   case DW_OP_lit26:                      return "DW_OP_lit26";
    387   case DW_OP_lit27:                      return "DW_OP_lit27";
    388   case DW_OP_lit28:                      return "DW_OP_lit28";
    389   case DW_OP_lit29:                      return "DW_OP_lit29";
    390   case DW_OP_lit30:                      return "DW_OP_lit30";
    391   case DW_OP_lit31:                      return "DW_OP_lit31";
    392   case DW_OP_reg0:                       return "DW_OP_reg0";
    393   case DW_OP_reg1:                       return "DW_OP_reg1";
    394   case DW_OP_reg2:                       return "DW_OP_reg2";
    395   case DW_OP_reg3:                       return "DW_OP_reg3";
    396   case DW_OP_reg4:                       return "DW_OP_reg4";
    397   case DW_OP_reg5:                       return "DW_OP_reg5";
    398   case DW_OP_reg6:                       return "DW_OP_reg6";
    399   case DW_OP_reg7:                       return "DW_OP_reg7";
    400   case DW_OP_reg8:                       return "DW_OP_reg8";
    401   case DW_OP_reg9:                       return "DW_OP_reg9";
    402   case DW_OP_reg10:                      return "DW_OP_reg10";
    403   case DW_OP_reg11:                      return "DW_OP_reg11";
    404   case DW_OP_reg12:                      return "DW_OP_reg12";
    405   case DW_OP_reg13:                      return "DW_OP_reg13";
    406   case DW_OP_reg14:                      return "DW_OP_reg14";
    407   case DW_OP_reg15:                      return "DW_OP_reg15";
    408   case DW_OP_reg16:                      return "DW_OP_reg16";
    409   case DW_OP_reg17:                      return "DW_OP_reg17";
    410   case DW_OP_reg18:                      return "DW_OP_reg18";
    411   case DW_OP_reg19:                      return "DW_OP_reg19";
    412   case DW_OP_reg20:                      return "DW_OP_reg20";
    413   case DW_OP_reg21:                      return "DW_OP_reg21";
    414   case DW_OP_reg22:                      return "DW_OP_reg22";
    415   case DW_OP_reg23:                      return "DW_OP_reg23";
    416   case DW_OP_reg24:                      return "DW_OP_reg24";
    417   case DW_OP_reg25:                      return "DW_OP_reg25";
    418   case DW_OP_reg26:                      return "DW_OP_reg26";
    419   case DW_OP_reg27:                      return "DW_OP_reg27";
    420   case DW_OP_reg28:                      return "DW_OP_reg28";
    421   case DW_OP_reg29:                      return "DW_OP_reg29";
    422   case DW_OP_reg30:                      return "DW_OP_reg30";
    423   case DW_OP_reg31:                      return "DW_OP_reg31";
    424   case DW_OP_breg0:                      return "DW_OP_breg0";
    425   case DW_OP_breg1:                      return "DW_OP_breg1";
    426   case DW_OP_breg2:                      return "DW_OP_breg2";
    427   case DW_OP_breg3:                      return "DW_OP_breg3";
    428   case DW_OP_breg4:                      return "DW_OP_breg4";
    429   case DW_OP_breg5:                      return "DW_OP_breg5";
    430   case DW_OP_breg6:                      return "DW_OP_breg6";
    431   case DW_OP_breg7:                      return "DW_OP_breg7";
    432   case DW_OP_breg8:                      return "DW_OP_breg8";
    433   case DW_OP_breg9:                      return "DW_OP_breg9";
    434   case DW_OP_breg10:                     return "DW_OP_breg10";
    435   case DW_OP_breg11:                     return "DW_OP_breg11";
    436   case DW_OP_breg12:                     return "DW_OP_breg12";
    437   case DW_OP_breg13:                     return "DW_OP_breg13";
    438   case DW_OP_breg14:                     return "DW_OP_breg14";
    439   case DW_OP_breg15:                     return "DW_OP_breg15";
    440   case DW_OP_breg16:                     return "DW_OP_breg16";
    441   case DW_OP_breg17:                     return "DW_OP_breg17";
    442   case DW_OP_breg18:                     return "DW_OP_breg18";
    443   case DW_OP_breg19:                     return "DW_OP_breg19";
    444   case DW_OP_breg20:                     return "DW_OP_breg20";
    445   case DW_OP_breg21:                     return "DW_OP_breg21";
    446   case DW_OP_breg22:                     return "DW_OP_breg22";
    447   case DW_OP_breg23:                     return "DW_OP_breg23";
    448   case DW_OP_breg24:                     return "DW_OP_breg24";
    449   case DW_OP_breg25:                     return "DW_OP_breg25";
    450   case DW_OP_breg26:                     return "DW_OP_breg26";
    451   case DW_OP_breg27:                     return "DW_OP_breg27";
    452   case DW_OP_breg28:                     return "DW_OP_breg28";
    453   case DW_OP_breg29:                     return "DW_OP_breg29";
    454   case DW_OP_breg30:                     return "DW_OP_breg30";
    455   case DW_OP_breg31:                     return "DW_OP_breg31";
    456   case DW_OP_regx:                       return "DW_OP_regx";
    457   case DW_OP_fbreg:                      return "DW_OP_fbreg";
    458   case DW_OP_bregx:                      return "DW_OP_bregx";
    459   case DW_OP_piece:                      return "DW_OP_piece";
    460   case DW_OP_deref_size:                 return "DW_OP_deref_size";
    461   case DW_OP_xderef_size:                return "DW_OP_xderef_size";
    462   case DW_OP_nop:                        return "DW_OP_nop";
    463   case DW_OP_push_object_address:        return "DW_OP_push_object_address";
    464   case DW_OP_call2:                      return "DW_OP_call2";
    465   case DW_OP_call4:                      return "DW_OP_call4";
    466   case DW_OP_call_ref:                   return "DW_OP_call_ref";
    467   case DW_OP_form_tls_address:           return "DW_OP_form_tls_address";
    468   case DW_OP_call_frame_cfa:             return "DW_OP_call_frame_cfa";
    469   case DW_OP_bit_piece:                  return "DW_OP_bit_piece";
    470   case DW_OP_implicit_value:             return "DW_OP_implicit_value";
    471   case DW_OP_stack_value:                return "DW_OP_stack_value";
    472 
    473   // GNU thread-local storage
    474   case DW_OP_GNU_push_tls_address:       return "DW_OP_GNU_push_tls_address";
    475 
    476   // DWARF5 Fission Proposal Op Extensions
    477   case DW_OP_GNU_addr_index:             return "DW_OP_GNU_addr_index";
    478   case DW_OP_GNU_const_index:            return "DW_OP_GNU_const_index";
    479   }
    480   return nullptr;
    481 }
    482 
    483 /// AttributeEncodingString - Return the string for the specified attribute
    484 /// encoding.
    485 const char *llvm::dwarf::AttributeEncodingString(unsigned Encoding) {
    486   switch (Encoding) {
    487   case DW_ATE_address:                   return "DW_ATE_address";
    488   case DW_ATE_boolean:                   return "DW_ATE_boolean";
    489   case DW_ATE_complex_float:             return "DW_ATE_complex_float";
    490   case DW_ATE_float:                     return "DW_ATE_float";
    491   case DW_ATE_signed:                    return "DW_ATE_signed";
    492   case DW_ATE_signed_char:               return "DW_ATE_signed_char";
    493   case DW_ATE_unsigned:                  return "DW_ATE_unsigned";
    494   case DW_ATE_unsigned_char:             return "DW_ATE_unsigned_char";
    495   case DW_ATE_imaginary_float:           return "DW_ATE_imaginary_float";
    496   case DW_ATE_UTF:                       return "DW_ATE_UTF";
    497   case DW_ATE_packed_decimal:            return "DW_ATE_packed_decimal";
    498   case DW_ATE_numeric_string:            return "DW_ATE_numeric_string";
    499   case DW_ATE_edited:                    return "DW_ATE_edited";
    500   case DW_ATE_signed_fixed:              return "DW_ATE_signed_fixed";
    501   case DW_ATE_unsigned_fixed:            return "DW_ATE_unsigned_fixed";
    502   case DW_ATE_decimal_float:             return "DW_ATE_decimal_float";
    503   case DW_ATE_lo_user:                   return "DW_ATE_lo_user";
    504   case DW_ATE_hi_user:                   return "DW_ATE_hi_user";
    505   }
    506   return nullptr;
    507 }
    508 
    509 /// DecimalSignString - Return the string for the specified decimal sign
    510 /// attribute.
    511 const char *llvm::dwarf::DecimalSignString(unsigned Sign) {
    512   switch (Sign) {
    513   case DW_DS_unsigned:                   return "DW_DS_unsigned";
    514   case DW_DS_leading_overpunch:          return "DW_DS_leading_overpunch";
    515   case DW_DS_trailing_overpunch:         return "DW_DS_trailing_overpunch";
    516   case DW_DS_leading_separate:           return "DW_DS_leading_separate";
    517   case DW_DS_trailing_separate:          return "DW_DS_trailing_separate";
    518   }
    519   return nullptr;
    520 }
    521 
    522 /// EndianityString - Return the string for the specified endianity.
    523 ///
    524 const char *llvm::dwarf::EndianityString(unsigned Endian) {
    525   switch (Endian) {
    526   case DW_END_default:                   return "DW_END_default";
    527   case DW_END_big:                       return "DW_END_big";
    528   case DW_END_little:                    return "DW_END_little";
    529   case DW_END_lo_user:                   return "DW_END_lo_user";
    530   case DW_END_hi_user:                   return "DW_END_hi_user";
    531   }
    532   return nullptr;
    533 }
    534 
    535 /// AccessibilityString - Return the string for the specified accessibility.
    536 ///
    537 const char *llvm::dwarf::AccessibilityString(unsigned Access) {
    538   switch (Access) {
    539   // Accessibility codes
    540   case DW_ACCESS_public:                 return "DW_ACCESS_public";
    541   case DW_ACCESS_protected:              return "DW_ACCESS_protected";
    542   case DW_ACCESS_private:                return "DW_ACCESS_private";
    543   }
    544   return nullptr;
    545 }
    546 
    547 /// VisibilityString - Return the string for the specified visibility.
    548 ///
    549 const char *llvm::dwarf::VisibilityString(unsigned Visibility) {
    550   switch (Visibility) {
    551   case DW_VIS_local:                     return "DW_VIS_local";
    552   case DW_VIS_exported:                  return "DW_VIS_exported";
    553   case DW_VIS_qualified:                 return "DW_VIS_qualified";
    554   }
    555   return nullptr;
    556 }
    557 
    558 /// VirtualityString - Return the string for the specified virtuality.
    559 ///
    560 const char *llvm::dwarf::VirtualityString(unsigned Virtuality) {
    561   switch (Virtuality) {
    562   case DW_VIRTUALITY_none:               return "DW_VIRTUALITY_none";
    563   case DW_VIRTUALITY_virtual:            return "DW_VIRTUALITY_virtual";
    564   case DW_VIRTUALITY_pure_virtual:       return "DW_VIRTUALITY_pure_virtual";
    565   }
    566   return nullptr;
    567 }
    568 
    569 /// LanguageString - Return the string for the specified language.
    570 ///
    571 const char *llvm::dwarf::LanguageString(unsigned Language) {
    572   switch (Language) {
    573   case DW_LANG_C89:                      return "DW_LANG_C89";
    574   case DW_LANG_C:                        return "DW_LANG_C";
    575   case DW_LANG_Ada83:                    return "DW_LANG_Ada83";
    576   case DW_LANG_C_plus_plus:              return "DW_LANG_C_plus_plus";
    577   case DW_LANG_Cobol74:                  return "DW_LANG_Cobol74";
    578   case DW_LANG_Cobol85:                  return "DW_LANG_Cobol85";
    579   case DW_LANG_Fortran77:                return "DW_LANG_Fortran77";
    580   case DW_LANG_Fortran90:                return "DW_LANG_Fortran90";
    581   case DW_LANG_Pascal83:                 return "DW_LANG_Pascal83";
    582   case DW_LANG_Modula2:                  return "DW_LANG_Modula2";
    583   case DW_LANG_Java:                     return "DW_LANG_Java";
    584   case DW_LANG_C99:                      return "DW_LANG_C99";
    585   case DW_LANG_Ada95:                    return "DW_LANG_Ada95";
    586   case DW_LANG_Fortran95:                return "DW_LANG_Fortran95";
    587   case DW_LANG_PLI:                      return "DW_LANG_PLI";
    588   case DW_LANG_ObjC:                     return "DW_LANG_ObjC";
    589   case DW_LANG_ObjC_plus_plus:           return "DW_LANG_ObjC_plus_plus";
    590   case DW_LANG_UPC:                      return "DW_LANG_UPC";
    591   case DW_LANG_D:                        return "DW_LANG_D";
    592   case DW_LANG_Python:                   return "DW_LANG_Python";
    593   case DW_LANG_OpenCL:                   return "DW_LANG_OpenCL";
    594   case DW_LANG_Go:                       return "DW_LANG_Go";
    595   case DW_LANG_Modula3:                  return "DW_LANG_Modula3";
    596   case DW_LANG_Haskell:                  return "DW_LANG_Haskell";
    597   case DW_LANG_C_plus_plus_03:           return "DW_LANG_C_plus_plus_03";
    598   case DW_LANG_C_plus_plus_11:           return "DW_LANG_C_plus_plus_11";
    599   case DW_LANG_OCaml:                    return "DW_LANG_OCaml";
    600   case DW_LANG_lo_user:                  return "DW_LANG_lo_user";
    601   case DW_LANG_hi_user:                  return "DW_LANG_hi_user";
    602   }
    603   return nullptr;
    604 }
    605 
    606 /// CaseString - Return the string for the specified identifier case.
    607 ///
    608 const char *llvm::dwarf::CaseString(unsigned Case) {
    609   switch (Case) {
    610   case DW_ID_case_sensitive:             return "DW_ID_case_sensitive";
    611   case DW_ID_up_case:                    return "DW_ID_up_case";
    612   case DW_ID_down_case:                  return "DW_ID_down_case";
    613   case DW_ID_case_insensitive:           return "DW_ID_case_insensitive";
    614   }
    615   return nullptr;
    616 }
    617 
    618 /// ConventionString - Return the string for the specified calling convention.
    619 ///
    620 const char *llvm::dwarf::ConventionString(unsigned Convention) {
    621    switch (Convention) {
    622    case DW_CC_normal:                     return "DW_CC_normal";
    623    case DW_CC_program:                    return "DW_CC_program";
    624    case DW_CC_nocall:                     return "DW_CC_nocall";
    625    case DW_CC_lo_user:                    return "DW_CC_lo_user";
    626    case DW_CC_hi_user:                    return "DW_CC_hi_user";
    627   }
    628   return nullptr;
    629 }
    630 
    631 /// InlineCodeString - Return the string for the specified inline code.
    632 ///
    633 const char *llvm::dwarf::InlineCodeString(unsigned Code) {
    634   switch (Code) {
    635   case DW_INL_not_inlined:               return "DW_INL_not_inlined";
    636   case DW_INL_inlined:                   return "DW_INL_inlined";
    637   case DW_INL_declared_not_inlined:      return "DW_INL_declared_not_inlined";
    638   case DW_INL_declared_inlined:          return "DW_INL_declared_inlined";
    639   }
    640   return nullptr;
    641 }
    642 
    643 /// ArrayOrderString - Return the string for the specified array order.
    644 ///
    645 const char *llvm::dwarf::ArrayOrderString(unsigned Order) {
    646   switch (Order) {
    647   case DW_ORD_row_major:                 return "DW_ORD_row_major";
    648   case DW_ORD_col_major:                 return "DW_ORD_col_major";
    649   }
    650   return nullptr;
    651 }
    652 
    653 /// DiscriminantString - Return the string for the specified discriminant
    654 /// descriptor.
    655 const char *llvm::dwarf::DiscriminantString(unsigned Discriminant) {
    656   switch (Discriminant) {
    657   case DW_DSC_label:                     return "DW_DSC_label";
    658   case DW_DSC_range:                     return "DW_DSC_range";
    659   }
    660   return nullptr;
    661 }
    662 
    663 /// LNStandardString - Return the string for the specified line number standard.
    664 ///
    665 const char *llvm::dwarf::LNStandardString(unsigned Standard) {
    666   switch (Standard) {
    667   case DW_LNS_copy:                      return "DW_LNS_copy";
    668   case DW_LNS_advance_pc:                return "DW_LNS_advance_pc";
    669   case DW_LNS_advance_line:              return "DW_LNS_advance_line";
    670   case DW_LNS_set_file:                  return "DW_LNS_set_file";
    671   case DW_LNS_set_column:                return "DW_LNS_set_column";
    672   case DW_LNS_negate_stmt:               return "DW_LNS_negate_stmt";
    673   case DW_LNS_set_basic_block:           return "DW_LNS_set_basic_block";
    674   case DW_LNS_const_add_pc:              return "DW_LNS_const_add_pc";
    675   case DW_LNS_fixed_advance_pc:          return "DW_LNS_fixed_advance_pc";
    676   case DW_LNS_set_prologue_end:          return "DW_LNS_set_prologue_end";
    677   case DW_LNS_set_epilogue_begin:        return "DW_LNS_set_epilogue_begin";
    678   case DW_LNS_set_isa:                   return "DW_LNS_set_isa";
    679   }
    680   return nullptr;
    681 }
    682 
    683 /// LNExtendedString - Return the string for the specified line number extended
    684 /// opcode encodings.
    685 const char *llvm::dwarf::LNExtendedString(unsigned Encoding) {
    686   switch (Encoding) {
    687   // Line Number Extended Opcode Encodings
    688   case DW_LNE_end_sequence:              return "DW_LNE_end_sequence";
    689   case DW_LNE_set_address:               return "DW_LNE_set_address";
    690   case DW_LNE_define_file:               return "DW_LNE_define_file";
    691   case DW_LNE_set_discriminator:         return "DW_LNE_set_discriminator";
    692   case DW_LNE_lo_user:                   return "DW_LNE_lo_user";
    693   case DW_LNE_hi_user:                   return "DW_LNE_hi_user";
    694   }
    695   return nullptr;
    696 }
    697 
    698 /// MacinfoString - Return the string for the specified macinfo type encodings.
    699 ///
    700 const char *llvm::dwarf::MacinfoString(unsigned Encoding) {
    701   switch (Encoding) {
    702   // Macinfo Type Encodings
    703   case DW_MACINFO_define:                return "DW_MACINFO_define";
    704   case DW_MACINFO_undef:                 return "DW_MACINFO_undef";
    705   case DW_MACINFO_start_file:            return "DW_MACINFO_start_file";
    706   case DW_MACINFO_end_file:              return "DW_MACINFO_end_file";
    707   case DW_MACINFO_vendor_ext:            return "DW_MACINFO_vendor_ext";
    708   }
    709   return nullptr;
    710 }
    711 
    712 /// CallFrameString - Return the string for the specified call frame instruction
    713 /// encodings.
    714 const char *llvm::dwarf::CallFrameString(unsigned Encoding) {
    715   switch (Encoding) {
    716   case DW_CFA_nop:                       return "DW_CFA_nop";
    717   case DW_CFA_advance_loc:               return "DW_CFA_advance_loc";
    718   case DW_CFA_offset:                    return "DW_CFA_offset";
    719   case DW_CFA_restore:                   return "DW_CFA_restore";
    720   case DW_CFA_set_loc:                   return "DW_CFA_set_loc";
    721   case DW_CFA_advance_loc1:              return "DW_CFA_advance_loc1";
    722   case DW_CFA_advance_loc2:              return "DW_CFA_advance_loc2";
    723   case DW_CFA_advance_loc4:              return "DW_CFA_advance_loc4";
    724   case DW_CFA_offset_extended:           return "DW_CFA_offset_extended";
    725   case DW_CFA_restore_extended:          return "DW_CFA_restore_extended";
    726   case DW_CFA_undefined:                 return "DW_CFA_undefined";
    727   case DW_CFA_same_value:                return "DW_CFA_same_value";
    728   case DW_CFA_register:                  return "DW_CFA_register";
    729   case DW_CFA_remember_state:            return "DW_CFA_remember_state";
    730   case DW_CFA_restore_state:             return "DW_CFA_restore_state";
    731   case DW_CFA_def_cfa:                   return "DW_CFA_def_cfa";
    732   case DW_CFA_def_cfa_register:          return "DW_CFA_def_cfa_register";
    733   case DW_CFA_def_cfa_offset:            return "DW_CFA_def_cfa_offset";
    734   case DW_CFA_def_cfa_expression:        return "DW_CFA_def_cfa_expression";
    735   case DW_CFA_expression:                return "DW_CFA_expression";
    736   case DW_CFA_offset_extended_sf:        return "DW_CFA_offset_extended_sf";
    737   case DW_CFA_def_cfa_sf:                return "DW_CFA_def_cfa_sf";
    738   case DW_CFA_def_cfa_offset_sf:         return "DW_CFA_def_cfa_offset_sf";
    739   case DW_CFA_val_offset:                return "DW_CFA_val_offset";
    740   case DW_CFA_val_offset_sf:             return "DW_CFA_val_offset_sf";
    741   case DW_CFA_val_expression:            return "DW_CFA_val_expression";
    742   case DW_CFA_MIPS_advance_loc8:         return "DW_CFA_MIPS_advance_loc8";
    743   case DW_CFA_GNU_window_save:           return "DW_CFA_GNU_window_save";
    744   case DW_CFA_GNU_args_size:             return "DW_CFA_GNU_args_size";
    745   case DW_CFA_lo_user:                   return "DW_CFA_lo_user";
    746   case DW_CFA_hi_user:                   return "DW_CFA_hi_user";
    747   }
    748   return nullptr;
    749 }
    750 
    751 const char *llvm::dwarf::AtomTypeString(unsigned AT) {
    752   switch (AT) {
    753   case dwarf::DW_ATOM_null:
    754     return "DW_ATOM_null";
    755   case dwarf::DW_ATOM_die_offset:
    756     return "DW_ATOM_die_offset";
    757   case DW_ATOM_cu_offset:
    758     return "DW_ATOM_cu_offset";
    759   case DW_ATOM_die_tag:
    760     return "DW_ATOM_die_tag";
    761   case DW_ATOM_type_flags:
    762     return "DW_ATOM_type_flags";
    763   }
    764   return nullptr;
    765 }
    766 
    767 const char *llvm::dwarf::GDBIndexEntryKindString(GDBIndexEntryKind Kind) {
    768   switch (Kind) {
    769   case GIEK_NONE:
    770     return "NONE";
    771   case GIEK_TYPE:
    772     return "TYPE";
    773   case GIEK_VARIABLE:
    774     return "VARIABLE";
    775   case GIEK_FUNCTION:
    776     return "FUNCTION";
    777   case GIEK_OTHER:
    778     return "OTHER";
    779   case GIEK_UNUSED5:
    780     return "UNUSED5";
    781   case GIEK_UNUSED6:
    782     return "UNUSED6";
    783   case GIEK_UNUSED7:
    784     return "UNUSED7";
    785   }
    786   llvm_unreachable("Unknown GDBIndexEntryKind value");
    787 }
    788 
    789 const char *llvm::dwarf::GDBIndexEntryLinkageString(GDBIndexEntryLinkage Linkage) {
    790   switch (Linkage) {
    791   case GIEL_EXTERNAL:
    792     return "EXTERNAL";
    793   case GIEL_STATIC:
    794     return "STATIC";
    795   }
    796   llvm_unreachable("Unknown GDBIndexEntryLinkage value");
    797 }
    798