Dwarf.cpp revision 480decf1a2ef766cf768391f573323128445650c
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#include <cassert>
17using namespace llvm;
18using namespace dwarf;
19
20/// TagString - Return the string for the specified tag.
21///
22const 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  }
84  llvm_unreachable("Unknown Dwarf Tag");
85  return "";
86}
87
88/// ChildrenString - Return the string for the specified children flag.
89///
90const char *llvm::dwarf::ChildrenString(unsigned Children) {
91  switch (Children) {
92    case DW_CHILDREN_no:                   return "CHILDREN_no";
93    case DW_CHILDREN_yes:                  return "CHILDREN_yes";
94  }
95  llvm_unreachable("Unknown Dwarf ChildrenFlag");
96  return "";
97}
98
99/// AttributeString - Return the string for the specified attribute.
100///
101const char *llvm::dwarf::AttributeString(unsigned Attribute) {
102  switch (Attribute) {
103  case DW_AT_sibling:                    return "DW_AT_sibling";
104  case DW_AT_location:                   return "DW_AT_location";
105  case DW_AT_name:                       return "DW_AT_name";
106  case DW_AT_ordering:                   return "DW_AT_ordering";
107  case DW_AT_byte_size:                  return "DW_AT_byte_size";
108  case DW_AT_bit_offset:                 return "DW_AT_bit_offset";
109  case DW_AT_bit_size:                   return "DW_AT_bit_size";
110  case DW_AT_stmt_list:                  return "DW_AT_stmt_list";
111  case DW_AT_low_pc:                     return "DW_AT_low_pc";
112  case DW_AT_high_pc:                    return "DW_AT_high_pc";
113  case DW_AT_language:                   return "DW_AT_language";
114  case DW_AT_discr:                      return "DW_AT_discr";
115  case DW_AT_discr_value:                return "DW_AT_discr_value";
116  case DW_AT_visibility:                 return "DW_AT_visibility";
117  case DW_AT_import:                     return "DW_AT_import";
118  case DW_AT_string_length:              return "DW_AT_string_length";
119  case DW_AT_common_reference:           return "DW_AT_common_reference";
120  case DW_AT_comp_dir:                   return "DW_AT_comp_dir";
121  case DW_AT_const_value:                return "DW_AT_const_value";
122  case DW_AT_containing_type:            return "DW_AT_containing_type";
123  case DW_AT_default_value:              return "DW_AT_default_value";
124  case DW_AT_inline:                     return "DW_AT_inline";
125  case DW_AT_is_optional:                return "DW_AT_is_optional";
126  case DW_AT_lower_bound:                return "DW_AT_lower_bound";
127  case DW_AT_producer:                   return "DW_AT_producer";
128  case DW_AT_prototyped:                 return "DW_AT_prototyped";
129  case DW_AT_return_addr:                return "DW_AT_return_addr";
130  case DW_AT_start_scope:                return "DW_AT_start_scope";
131  case DW_AT_bit_stride:                 return "DW_AT_bit_stride";
132  case DW_AT_upper_bound:                return "DW_AT_upper_bound";
133  case DW_AT_abstract_origin:            return "DW_AT_abstract_origin";
134  case DW_AT_accessibility:              return "DW_AT_accessibility";
135  case DW_AT_address_class:              return "DW_AT_address_class";
136  case DW_AT_artificial:                 return "DW_AT_artificial";
137  case DW_AT_base_types:                 return "DW_AT_base_types";
138  case DW_AT_calling_convention:         return "DW_AT_calling_convention";
139  case DW_AT_count:                      return "DW_AT_count";
140  case DW_AT_data_member_location:       return "DW_AT_data_member_location";
141  case DW_AT_decl_column:                return "DW_AT_decl_column";
142  case DW_AT_decl_file:                  return "DW_AT_decl_file";
143  case DW_AT_decl_line:                  return "DW_AT_decl_line";
144  case DW_AT_declaration:                return "DW_AT_declaration";
145  case DW_AT_discr_list:                 return "DW_AT_discr_list";
146  case DW_AT_encoding:                   return "DW_AT_encoding";
147  case DW_AT_external:                   return "DW_AT_external";
148  case DW_AT_frame_base:                 return "DW_AT_frame_base";
149  case DW_AT_friend:                     return "DW_AT_friend";
150  case DW_AT_identifier_case:            return "DW_AT_identifier_case";
151  case DW_AT_macro_info:                 return "DW_AT_macro_info";
152  case DW_AT_namelist_item:              return "DW_AT_namelist_item";
153  case DW_AT_priority:                   return "DW_AT_priority";
154  case DW_AT_segment:                    return "DW_AT_segment";
155  case DW_AT_specification:              return "DW_AT_specification";
156  case DW_AT_static_link:                return "DW_AT_static_link";
157  case DW_AT_type:                       return "DW_AT_type";
158  case DW_AT_use_location:               return "DW_AT_use_location";
159  case DW_AT_variable_parameter:         return "DW_AT_variable_parameter";
160  case DW_AT_virtuality:                 return "DW_AT_virtuality";
161  case DW_AT_vtable_elem_location:       return "DW_AT_vtable_elem_location";
162  case DW_AT_allocated:                  return "DW_AT_allocated";
163  case DW_AT_associated:                 return "DW_AT_associated";
164  case DW_AT_data_location:              return "DW_AT_data_location";
165  case DW_AT_byte_stride:                return "DW_AT_byte_stride";
166  case DW_AT_entry_pc:                   return "DW_AT_entry_pc";
167  case DW_AT_use_UTF8:                   return "DW_AT_use_UTF8";
168  case DW_AT_extension:                  return "DW_AT_extension";
169  case DW_AT_ranges:                     return "DW_AT_ranges";
170  case DW_AT_trampoline:                 return "DW_AT_trampoline";
171  case DW_AT_call_column:                return "DW_AT_call_column";
172  case DW_AT_call_file:                  return "DW_AT_call_file";
173  case DW_AT_call_line:                  return "DW_AT_call_line";
174  case DW_AT_description:                return "DW_AT_description";
175  case DW_AT_binary_scale:               return "DW_AT_binary_scale";
176  case DW_AT_decimal_scale:              return "DW_AT_decimal_scale";
177  case DW_AT_small:                      return "DW_AT_small";
178  case DW_AT_decimal_sign:               return "DW_AT_decimal_sign";
179  case DW_AT_digit_count:                return "DW_AT_digit_count";
180  case DW_AT_picture_string:             return "DW_AT_picture_string";
181  case DW_AT_mutable:                    return "DW_AT_mutable";
182  case DW_AT_threads_scaled:             return "DW_AT_threads_scaled";
183  case DW_AT_explicit:                   return "DW_AT_explicit";
184  case DW_AT_object_pointer:             return "DW_AT_object_pointer";
185  case DW_AT_endianity:                  return "DW_AT_endianity";
186  case DW_AT_elemental:                  return "DW_AT_elemental";
187  case DW_AT_pure:                       return "DW_AT_pure";
188  case DW_AT_recursive:                  return "DW_AT_recursive";
189  case DW_AT_MIPS_linkage_name:          return "DW_AT_MIPS_linkage_name";
190  case DW_AT_sf_names:                   return "DW_AT_sf_names";
191  case DW_AT_src_info:                   return "DW_AT_src_info";
192  case DW_AT_mac_info:                   return "DW_AT_mac_info";
193  case DW_AT_src_coords:                 return "DW_AT_src_coords";
194  case DW_AT_body_begin:                 return "DW_AT_body_begin";
195  case DW_AT_body_end:                   return "DW_AT_body_end";
196  case DW_AT_GNU_vector:                 return "DW_AT_GNU_vector";
197  case DW_AT_lo_user:                    return "DW_AT_lo_user";
198  case DW_AT_hi_user:                    return "DW_AT_hi_user";
199  case DW_AT_APPLE_optimized:            return "DW_AT_APPLE_optimized";
200  case DW_AT_APPLE_flags:                return "DW_AT_APPLE_flags";
201  case DW_AT_APPLE_isa:                  return "DW_AT_APPLE_isa";
202  case DW_AT_APPLE_block:                return "DW_AT_APPLE_block";
203  case DW_AT_APPLE_major_runtime_vers:  return "DW_AT_APPLE_major_runtime_vers";
204  case DW_AT_APPLE_runtime_class:        return "DW_AT_APPLE_runtime_class";
205  }
206  llvm_unreachable("Unknown Dwarf Attribute");
207  return "";
208}
209
210/// FormEncodingString - Return the string for the specified form encoding.
211///
212const char *llvm::dwarf::FormEncodingString(unsigned Encoding) {
213  switch (Encoding) {
214  case DW_FORM_addr:                     return "FORM_addr";
215  case DW_FORM_block2:                   return "FORM_block2";
216  case DW_FORM_block4:                   return "FORM_block4";
217  case DW_FORM_data2:                    return "FORM_data2";
218  case DW_FORM_data4:                    return "FORM_data4";
219  case DW_FORM_data8:                    return "FORM_data8";
220  case DW_FORM_string:                   return "FORM_string";
221  case DW_FORM_block:                    return "FORM_block";
222  case DW_FORM_block1:                   return "FORM_block1";
223  case DW_FORM_data1:                    return "FORM_data1";
224  case DW_FORM_flag:                     return "FORM_flag";
225  case DW_FORM_sdata:                    return "FORM_sdata";
226  case DW_FORM_strp:                     return "FORM_strp";
227  case DW_FORM_udata:                    return "FORM_udata";
228  case DW_FORM_ref_addr:                 return "FORM_ref_addr";
229  case DW_FORM_ref1:                     return "FORM_ref1";
230  case DW_FORM_ref2:                     return "FORM_ref2";
231  case DW_FORM_ref4:                     return "FORM_ref4";
232  case DW_FORM_ref8:                     return "FORM_ref8";
233  case DW_FORM_ref_udata:                return "FORM_ref_udata";
234  case DW_FORM_indirect:                 return "FORM_indirect";
235  }
236  llvm_unreachable("Unknown Dwarf Form Encoding");
237  return "";
238}
239
240/// OperationEncodingString - Return the string for the specified operation
241/// encoding.
242const char *llvm::dwarf::OperationEncodingString(unsigned Encoding) {
243  switch (Encoding) {
244  case DW_OP_addr:                       return "OP_addr";
245  case DW_OP_deref:                      return "OP_deref";
246  case DW_OP_const1u:                    return "OP_const1u";
247  case DW_OP_const1s:                    return "OP_const1s";
248  case DW_OP_const2u:                    return "OP_const2u";
249  case DW_OP_const2s:                    return "OP_const2s";
250  case DW_OP_const4u:                    return "OP_const4u";
251  case DW_OP_const4s:                    return "OP_const4s";
252  case DW_OP_const8u:                    return "OP_const8u";
253  case DW_OP_const8s:                    return "OP_const8s";
254  case DW_OP_constu:                     return "OP_constu";
255  case DW_OP_consts:                     return "OP_consts";
256  case DW_OP_dup:                        return "OP_dup";
257  case DW_OP_drop:                       return "OP_drop";
258  case DW_OP_over:                       return "OP_over";
259  case DW_OP_pick:                       return "OP_pick";
260  case DW_OP_swap:                       return "OP_swap";
261  case DW_OP_rot:                        return "OP_rot";
262  case DW_OP_xderef:                     return "OP_xderef";
263  case DW_OP_abs:                        return "OP_abs";
264  case DW_OP_and:                        return "OP_and";
265  case DW_OP_div:                        return "OP_div";
266  case DW_OP_minus:                      return "OP_minus";
267  case DW_OP_mod:                        return "OP_mod";
268  case DW_OP_mul:                        return "OP_mul";
269  case DW_OP_neg:                        return "OP_neg";
270  case DW_OP_not:                        return "OP_not";
271  case DW_OP_or:                         return "OP_or";
272  case DW_OP_plus:                       return "OP_plus";
273  case DW_OP_plus_uconst:                return "OP_plus_uconst";
274  case DW_OP_shl:                        return "OP_shl";
275  case DW_OP_shr:                        return "OP_shr";
276  case DW_OP_shra:                       return "OP_shra";
277  case DW_OP_xor:                        return "OP_xor";
278  case DW_OP_skip:                       return "OP_skip";
279  case DW_OP_bra:                        return "OP_bra";
280  case DW_OP_eq:                         return "OP_eq";
281  case DW_OP_ge:                         return "OP_ge";
282  case DW_OP_gt:                         return "OP_gt";
283  case DW_OP_le:                         return "OP_le";
284  case DW_OP_lt:                         return "OP_lt";
285  case DW_OP_ne:                         return "OP_ne";
286  case DW_OP_lit0:                       return "OP_lit0";
287  case DW_OP_lit1:                       return "OP_lit1";
288  case DW_OP_lit31:                      return "OP_lit31";
289  case DW_OP_reg0:                       return "OP_reg0";
290  case DW_OP_reg1:                       return "OP_reg1";
291  case DW_OP_reg31:                      return "OP_reg31";
292  case DW_OP_breg0:                      return "OP_breg0";
293  case DW_OP_breg1:                      return "OP_breg1";
294  case DW_OP_breg31:                     return "OP_breg31";
295  case DW_OP_regx:                       return "OP_regx";
296  case DW_OP_fbreg:                      return "OP_fbreg";
297  case DW_OP_bregx:                      return "OP_bregx";
298  case DW_OP_piece:                      return "OP_piece";
299  case DW_OP_deref_size:                 return "OP_deref_size";
300  case DW_OP_xderef_size:                return "OP_xderef_size";
301  case DW_OP_nop:                        return "OP_nop";
302  case DW_OP_push_object_address:        return "OP_push_object_address";
303  case DW_OP_call2:                      return "OP_call2";
304  case DW_OP_call4:                      return "OP_call4";
305  case DW_OP_call_ref:                   return "OP_call_ref";
306  case DW_OP_form_tls_address:           return "OP_form_tls_address";
307  case DW_OP_call_frame_cfa:             return "OP_call_frame_cfa";
308  case DW_OP_lo_user:                    return "OP_lo_user";
309  case DW_OP_hi_user:                    return "OP_hi_user";
310  }
311  llvm_unreachable("Unknown Dwarf Operation Encoding");
312  return "";
313}
314
315/// AttributeEncodingString - Return the string for the specified attribute
316/// encoding.
317const char *llvm::dwarf::AttributeEncodingString(unsigned Encoding) {
318  switch (Encoding) {
319  case DW_ATE_address:                   return "ATE_address";
320  case DW_ATE_boolean:                   return "ATE_boolean";
321  case DW_ATE_complex_float:             return "ATE_complex_float";
322  case DW_ATE_float:                     return "ATE_float";
323  case DW_ATE_signed:                    return "ATE_signed";
324  case DW_ATE_signed_char:               return "ATE_signed_char";
325  case DW_ATE_unsigned:                  return "ATE_unsigned";
326  case DW_ATE_unsigned_char:             return "ATE_unsigned_char";
327  case DW_ATE_imaginary_float:           return "ATE_imaginary_float";
328  case DW_ATE_packed_decimal:            return "ATE_packed_decimal";
329  case DW_ATE_numeric_string:            return "ATE_numeric_string";
330  case DW_ATE_edited:                    return "ATE_edited";
331  case DW_ATE_signed_fixed:              return "ATE_signed_fixed";
332  case DW_ATE_unsigned_fixed:            return "ATE_unsigned_fixed";
333  case DW_ATE_decimal_float:             return "ATE_decimal_float";
334  case DW_ATE_lo_user:                   return "ATE_lo_user";
335  case DW_ATE_hi_user:                   return "ATE_hi_user";
336  }
337  llvm_unreachable("Unknown Dwarf Attribute Encoding");
338  return "";
339}
340
341/// DecimalSignString - Return the string for the specified decimal sign
342/// attribute.
343const char *llvm::dwarf::DecimalSignString(unsigned Sign) {
344  switch (Sign) {
345  case DW_DS_unsigned:                   return "DS_unsigned";
346  case DW_DS_leading_overpunch:          return "DS_leading_overpunch";
347  case DW_DS_trailing_overpunch:         return "DS_trailing_overpunch";
348  case DW_DS_leading_separate:           return "DS_leading_separate";
349  case DW_DS_trailing_separate:          return "DS_trailing_separate";
350  }
351  llvm_unreachable("Unknown Dwarf Decimal Sign Attribute");
352  return "";
353}
354
355/// EndianityString - Return the string for the specified endianity.
356///
357const char *llvm::dwarf::EndianityString(unsigned Endian) {
358  switch (Endian) {
359  case DW_END_default:                   return "END_default";
360  case DW_END_big:                       return "END_big";
361  case DW_END_little:                    return "END_little";
362  case DW_END_lo_user:                   return "END_lo_user";
363  case DW_END_hi_user:                   return "END_hi_user";
364  }
365  llvm_unreachable("Unknown Dwarf Endianity");
366  return "";
367}
368
369/// AccessibilityString - Return the string for the specified accessibility.
370///
371const char *llvm::dwarf::AccessibilityString(unsigned Access) {
372  switch (Access) {
373  // Accessibility codes
374  case DW_ACCESS_public:                 return "ACCESS_public";
375  case DW_ACCESS_protected:              return "ACCESS_protected";
376  case DW_ACCESS_private:                return "ACCESS_private";
377  }
378  llvm_unreachable("Unknown Dwarf Accessibility");
379  return "";
380}
381
382/// VisibilityString - Return the string for the specified visibility.
383///
384const char *llvm::dwarf::VisibilityString(unsigned Visibility) {
385  switch (Visibility) {
386  case DW_VIS_local:                     return "VIS_local";
387  case DW_VIS_exported:                  return "VIS_exported";
388  case DW_VIS_qualified:                 return "VIS_qualified";
389  }
390  llvm_unreachable("Unknown Dwarf Visibility");
391  return "";
392}
393
394/// VirtualityString - Return the string for the specified virtuality.
395///
396const char *llvm::dwarf::VirtualityString(unsigned Virtuality) {
397  switch (Virtuality) {
398  case DW_VIRTUALITY_none:               return "VIRTUALITY_none";
399  case DW_VIRTUALITY_virtual:            return "VIRTUALITY_virtual";
400  case DW_VIRTUALITY_pure_virtual:       return "VIRTUALITY_pure_virtual";
401  }
402  llvm_unreachable("Unknown Dwarf Virtuality");
403  return "";
404}
405
406/// LanguageString - Return the string for the specified language.
407///
408const char *llvm::dwarf::LanguageString(unsigned Language) {
409  switch (Language) {
410  case DW_LANG_C89:                      return "LANG_C89";
411  case DW_LANG_C:                        return "LANG_C";
412  case DW_LANG_Ada83:                    return "LANG_Ada83";
413  case DW_LANG_C_plus_plus:              return "LANG_C_plus_plus";
414  case DW_LANG_Cobol74:                  return "LANG_Cobol74";
415  case DW_LANG_Cobol85:                  return "LANG_Cobol85";
416  case DW_LANG_Fortran77:                return "LANG_Fortran77";
417  case DW_LANG_Fortran90:                return "LANG_Fortran90";
418  case DW_LANG_Pascal83:                 return "LANG_Pascal83";
419  case DW_LANG_Modula2:                  return "LANG_Modula2";
420  case DW_LANG_Java:                     return "LANG_Java";
421  case DW_LANG_C99:                      return "LANG_C99";
422  case DW_LANG_Ada95:                    return "LANG_Ada95";
423  case DW_LANG_Fortran95:                return "LANG_Fortran95";
424  case DW_LANG_PLI:                      return "LANG_PLI";
425  case DW_LANG_ObjC:                     return "LANG_ObjC";
426  case DW_LANG_ObjC_plus_plus:           return "LANG_ObjC_plus_plus";
427  case DW_LANG_UPC:                      return "LANG_UPC";
428  case DW_LANG_D:                        return "LANG_D";
429  case DW_LANG_lo_user:                  return "LANG_lo_user";
430  case DW_LANG_hi_user:                  return "LANG_hi_user";
431  }
432  llvm_unreachable("Unknown Dwarf Language");
433  return "";
434}
435
436/// CaseString - Return the string for the specified identifier case.
437///
438const char *llvm::dwarf::CaseString(unsigned Case) {
439  switch (Case) {
440  case DW_ID_case_sensitive:             return "ID_case_sensitive";
441  case DW_ID_up_case:                    return "ID_up_case";
442  case DW_ID_down_case:                  return "ID_down_case";
443  case DW_ID_case_insensitive:           return "ID_case_insensitive";
444  }
445  llvm_unreachable("Unknown Dwarf Identifier Case");
446  return "";
447}
448
449/// ConventionString - Return the string for the specified calling convention.
450///
451const char *llvm::dwarf::ConventionString(unsigned Convention) {
452   switch (Convention) {
453   case DW_CC_normal:                     return "CC_normal";
454   case DW_CC_program:                    return "CC_program";
455   case DW_CC_nocall:                     return "CC_nocall";
456   case DW_CC_lo_user:                    return "CC_lo_user";
457   case DW_CC_hi_user:                    return "CC_hi_user";
458  }
459  llvm_unreachable("Unknown Dwarf Calling Convention");
460  return "";
461}
462
463/// InlineCodeString - Return the string for the specified inline code.
464///
465const char *llvm::dwarf::InlineCodeString(unsigned Code) {
466  switch (Code) {
467  case DW_INL_not_inlined:               return "INL_not_inlined";
468  case DW_INL_inlined:                   return "INL_inlined";
469  case DW_INL_declared_not_inlined:      return "INL_declared_not_inlined";
470  case DW_INL_declared_inlined:          return "INL_declared_inlined";
471  }
472  llvm_unreachable("Unknown Dwarf Inline Code");
473  return "";
474}
475
476/// ArrayOrderString - Return the string for the specified array order.
477///
478const char *llvm::dwarf::ArrayOrderString(unsigned Order) {
479  switch (Order) {
480  case DW_ORD_row_major:                 return "ORD_row_major";
481  case DW_ORD_col_major:                 return "ORD_col_major";
482  }
483  llvm_unreachable("Unknown Dwarf Array Order");
484  return "";
485}
486
487/// DiscriminantString - Return the string for the specified discriminant
488/// descriptor.
489const char *llvm::dwarf::DiscriminantString(unsigned Discriminant) {
490  switch (Discriminant) {
491  case DW_DSC_label:                     return "DSC_label";
492  case DW_DSC_range:                     return "DSC_range";
493  }
494  llvm_unreachable("Unknown Dwarf Discriminant Descriptor");
495  return "";
496}
497
498/// LNStandardString - Return the string for the specified line number standard.
499///
500const char *llvm::dwarf::LNStandardString(unsigned Standard) {
501  switch (Standard) {
502  case DW_LNS_copy:                      return "LNS_copy";
503  case DW_LNS_advance_pc:                return "LNS_advance_pc";
504  case DW_LNS_advance_line:              return "LNS_advance_line";
505  case DW_LNS_set_file:                  return "LNS_set_file";
506  case DW_LNS_set_column:                return "LNS_set_column";
507  case DW_LNS_negate_stmt:               return "LNS_negate_stmt";
508  case DW_LNS_set_basic_block:           return "LNS_set_basic_block";
509  case DW_LNS_const_add_pc:              return "LNS_const_add_pc";
510  case DW_LNS_fixed_advance_pc:          return "LNS_fixed_advance_pc";
511  case DW_LNS_set_prologue_end:          return "LNS_set_prologue_end";
512  case DW_LNS_set_epilogue_begin:        return "LNS_set_epilogue_begin";
513  case DW_LNS_set_isa:                   return "LNS_set_isa";
514  }
515  llvm_unreachable("Unknown Dwarf Line Number Standard");
516  return "";
517}
518
519/// LNExtendedString - Return the string for the specified line number extended
520/// opcode encodings.
521const char *llvm::dwarf::LNExtendedString(unsigned Encoding) {
522  switch (Encoding) {
523  // Line Number Extended Opcode Encodings
524  case DW_LNE_end_sequence:              return "LNE_end_sequence";
525  case DW_LNE_set_address:               return "LNE_set_address";
526  case DW_LNE_define_file:               return "LNE_define_file";
527  case DW_LNE_lo_user:                   return "LNE_lo_user";
528  case DW_LNE_hi_user:                   return "LNE_hi_user";
529  }
530  llvm_unreachable("Unknown Dwarf Line Number Extended Opcode Encoding");
531  return "";
532}
533
534/// MacinfoString - Return the string for the specified macinfo type encodings.
535///
536const char *llvm::dwarf::MacinfoString(unsigned Encoding) {
537  switch (Encoding) {
538  // Macinfo Type Encodings
539  case DW_MACINFO_define:                return "MACINFO_define";
540  case DW_MACINFO_undef:                 return "MACINFO_undef";
541  case DW_MACINFO_start_file:            return "MACINFO_start_file";
542  case DW_MACINFO_end_file:              return "MACINFO_end_file";
543  case DW_MACINFO_vendor_ext:            return "MACINFO_vendor_ext";
544  }
545  llvm_unreachable("Unknown Dwarf Macinfo Type Encodings");
546  return "";
547}
548
549/// CallFrameString - Return the string for the specified call frame instruction
550/// encodings.
551const char *llvm::dwarf::CallFrameString(unsigned Encoding) {
552  switch (Encoding) {
553  case DW_CFA_advance_loc:               return "CFA_advance_loc";
554  case DW_CFA_offset:                    return "CFA_offset";
555  case DW_CFA_restore:                   return "CFA_restore";
556  case DW_CFA_set_loc:                   return "CFA_set_loc";
557  case DW_CFA_advance_loc1:              return "CFA_advance_loc1";
558  case DW_CFA_advance_loc2:              return "CFA_advance_loc2";
559  case DW_CFA_advance_loc4:              return "CFA_advance_loc4";
560  case DW_CFA_offset_extended:           return "CFA_offset_extended";
561  case DW_CFA_restore_extended:          return "CFA_restore_extended";
562  case DW_CFA_undefined:                 return "CFA_undefined";
563  case DW_CFA_same_value:                return "CFA_same_value";
564  case DW_CFA_register:                  return "CFA_register";
565  case DW_CFA_remember_state:            return "CFA_remember_state";
566  case DW_CFA_restore_state:             return "CFA_restore_state";
567  case DW_CFA_def_cfa:                   return "CFA_def_cfa";
568  case DW_CFA_def_cfa_register:          return "CFA_def_cfa_register";
569  case DW_CFA_def_cfa_offset:            return "CFA_def_cfa_offset";
570  case DW_CFA_def_cfa_expression:        return "CFA_def_cfa_expression";
571  case DW_CFA_expression:                return "CFA_expression";
572  case DW_CFA_offset_extended_sf:        return "CFA_offset_extended_sf";
573  case DW_CFA_def_cfa_sf:                return "CFA_def_cfa_sf";
574  case DW_CFA_def_cfa_offset_sf:         return "CFA_def_cfa_offset_sf";
575  case DW_CFA_val_offset:                return "CFA_val_offset";
576  case DW_CFA_val_offset_sf:             return "CFA_val_offset_sf";
577  case DW_CFA_val_expression:            return "CFA_val_expression";
578  case DW_CFA_lo_user:                   return "CFA_lo_user";
579  case DW_CFA_hi_user:                   return "CFA_hi_user";
580  }
581  llvm_unreachable("Unknown Dwarf Call Frame Instruction Encodings");
582  return "";
583}
584