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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 ///
TagString(unsigned Tag)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 ///
ChildrenString(unsigned Children)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 ///
AttributeString(unsigned Attribute)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 ///
FormEncodingString(unsigned Encoding)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.
OperationEncodingString(unsigned 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.
AttributeEncodingString(unsigned 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.
DecimalSignString(unsigned Sign)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 ///
EndianityString(unsigned Endian)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 ///
AccessibilityString(unsigned Access)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 ///
VisibilityString(unsigned Visibility)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 ///
VirtualityString(unsigned Virtuality)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 ///
LanguageString(unsigned Language)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 ///
CaseString(unsigned Case)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 ///
ConventionString(unsigned Convention)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 ///
InlineCodeString(unsigned Code)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 ///
ArrayOrderString(unsigned Order)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.
DiscriminantString(unsigned Discriminant)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 ///
LNStandardString(unsigned Standard)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.
LNExtendedString(unsigned Encoding)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 ///
MacinfoString(unsigned Encoding)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.
CallFrameString(unsigned Encoding)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 
AtomTypeString(unsigned AT)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 
GDBIndexEntryKindString(GDBIndexEntryKind Kind)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 
GDBIndexEntryLinkageString(GDBIndexEntryLinkage Linkage)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