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	This change implements basic support for DWARF alternate sections proposal: http://www.dwarfstd.org/ShowIssue.php?issue=120604.1&type=open LLVM tools now understand new forms: DW_FORM_GNU_ref_alt and DW_FORM_GNU_strp_alt, which are used as references to .debug_info and .debug_str sections respectively, stored in a separate file, and possibly shared between different executables / shared objects. llvm-dwarfdump and llvm-symbolizer don't yet know how to access this alternate debug file (usually pointed by .gnu_debugaltlink section), but they can at lease properly parse and dump regular files, which refer to it. This change should fix crashes of llvm-dwarfdump and llvm-symbolizer on files produced by running "dwz" tool. Such files are already installed on some modern Linux distributions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237721 91177308-0d34-0410-b5e6-96231b3b80d8
		
			
				
	
	
		
			591 lines
		
	
	
		
			26 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			591 lines
		
	
	
		
			26 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| //===-- llvm/Support/Dwarf.cpp - Dwarf Framework ----------------*- C++ -*-===//
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| //
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| //                     The LLVM Compiler Infrastructure
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| //
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| // This file is distributed under the University of Illinois Open Source
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| // License. See LICENSE.TXT for details.
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| //
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| //===----------------------------------------------------------------------===//
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| //
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| // This file contains support for generic dwarf information.
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| //
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| //===----------------------------------------------------------------------===//
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| 
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| #include "llvm/Support/Dwarf.h"
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| #include "llvm/ADT/StringSwitch.h"
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| #include "llvm/Support/ErrorHandling.h"
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| 
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| using namespace llvm;
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| using namespace dwarf;
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| 
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| const char *llvm::dwarf::TagString(unsigned Tag) {
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|   switch (Tag) {
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|   default: return nullptr;
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| #define HANDLE_DW_TAG(ID, NAME)                                                \
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|   case DW_TAG_##NAME:                                                          \
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|     return "DW_TAG_" #NAME;
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| #include "llvm/Support/Dwarf.def"
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|   }
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| }
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| 
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| unsigned llvm::dwarf::getTag(StringRef TagString) {
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|   return StringSwitch<unsigned>(TagString)
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| #define HANDLE_DW_TAG(ID, NAME) .Case("DW_TAG_" #NAME, DW_TAG_##NAME)
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| #include "llvm/Support/Dwarf.def"
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|       .Default(DW_TAG_invalid);
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| }
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| 
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| const char *llvm::dwarf::ChildrenString(unsigned Children) {
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|   switch (Children) {
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|   case DW_CHILDREN_no:                   return "DW_CHILDREN_no";
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|   case DW_CHILDREN_yes:                  return "DW_CHILDREN_yes";
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|   }
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|   return nullptr;
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| }
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| 
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| const char *llvm::dwarf::AttributeString(unsigned Attribute) {
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|   switch (Attribute) {
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|   case DW_AT_sibling:                    return "DW_AT_sibling";
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|   case DW_AT_location:                   return "DW_AT_location";
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|   case DW_AT_name:                       return "DW_AT_name";
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|   case DW_AT_ordering:                   return "DW_AT_ordering";
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|   case DW_AT_byte_size:                  return "DW_AT_byte_size";
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|   case DW_AT_bit_offset:                 return "DW_AT_bit_offset";
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|   case DW_AT_bit_size:                   return "DW_AT_bit_size";
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|   case DW_AT_stmt_list:                  return "DW_AT_stmt_list";
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|   case DW_AT_low_pc:                     return "DW_AT_low_pc";
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|   case DW_AT_high_pc:                    return "DW_AT_high_pc";
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|   case DW_AT_language:                   return "DW_AT_language";
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|   case DW_AT_discr:                      return "DW_AT_discr";
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|   case DW_AT_discr_value:                return "DW_AT_discr_value";
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|   case DW_AT_visibility:                 return "DW_AT_visibility";
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|   case DW_AT_import:                     return "DW_AT_import";
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|   case DW_AT_string_length:              return "DW_AT_string_length";
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|   case DW_AT_common_reference:           return "DW_AT_common_reference";
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|   case DW_AT_comp_dir:                   return "DW_AT_comp_dir";
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|   case DW_AT_const_value:                return "DW_AT_const_value";
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|   case DW_AT_containing_type:            return "DW_AT_containing_type";
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|   case DW_AT_default_value:              return "DW_AT_default_value";
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|   case DW_AT_inline:                     return "DW_AT_inline";
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|   case DW_AT_is_optional:                return "DW_AT_is_optional";
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|   case DW_AT_lower_bound:                return "DW_AT_lower_bound";
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|   case DW_AT_producer:                   return "DW_AT_producer";
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|   case DW_AT_prototyped:                 return "DW_AT_prototyped";
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|   case DW_AT_return_addr:                return "DW_AT_return_addr";
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|   case DW_AT_start_scope:                return "DW_AT_start_scope";
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|   case DW_AT_bit_stride:                 return "DW_AT_bit_stride";
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|   case DW_AT_upper_bound:                return "DW_AT_upper_bound";
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|   case DW_AT_abstract_origin:            return "DW_AT_abstract_origin";
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|   case DW_AT_accessibility:              return "DW_AT_accessibility";
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|   case DW_AT_address_class:              return "DW_AT_address_class";
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|   case DW_AT_artificial:                 return "DW_AT_artificial";
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|   case DW_AT_base_types:                 return "DW_AT_base_types";
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|   case DW_AT_calling_convention:         return "DW_AT_calling_convention";
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|   case DW_AT_count:                      return "DW_AT_count";
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|   case DW_AT_data_member_location:       return "DW_AT_data_member_location";
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|   case DW_AT_decl_column:                return "DW_AT_decl_column";
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|   case DW_AT_decl_file:                  return "DW_AT_decl_file";
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|   case DW_AT_decl_line:                  return "DW_AT_decl_line";
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|   case DW_AT_declaration:                return "DW_AT_declaration";
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|   case DW_AT_discr_list:                 return "DW_AT_discr_list";
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|   case DW_AT_encoding:                   return "DW_AT_encoding";
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|   case DW_AT_external:                   return "DW_AT_external";
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|   case DW_AT_frame_base:                 return "DW_AT_frame_base";
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|   case DW_AT_friend:                     return "DW_AT_friend";
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|   case DW_AT_identifier_case:            return "DW_AT_identifier_case";
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|   case DW_AT_macro_info:                 return "DW_AT_macro_info";
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|   case DW_AT_namelist_item:              return "DW_AT_namelist_item";
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|   case DW_AT_priority:                   return "DW_AT_priority";
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|   case DW_AT_segment:                    return "DW_AT_segment";
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|   case DW_AT_specification:              return "DW_AT_specification";
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|   case DW_AT_static_link:                return "DW_AT_static_link";
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|   case DW_AT_type:                       return "DW_AT_type";
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|   case DW_AT_use_location:               return "DW_AT_use_location";
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|   case DW_AT_variable_parameter:         return "DW_AT_variable_parameter";
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|   case DW_AT_virtuality:                 return "DW_AT_virtuality";
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|   case DW_AT_vtable_elem_location:       return "DW_AT_vtable_elem_location";
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|   case DW_AT_allocated:                  return "DW_AT_allocated";
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|   case DW_AT_associated:                 return "DW_AT_associated";
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|   case DW_AT_data_location:              return "DW_AT_data_location";
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|   case DW_AT_byte_stride:                return "DW_AT_byte_stride";
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|   case DW_AT_entry_pc:                   return "DW_AT_entry_pc";
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|   case DW_AT_use_UTF8:                   return "DW_AT_use_UTF8";
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|   case DW_AT_extension:                  return "DW_AT_extension";
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|   case DW_AT_ranges:                     return "DW_AT_ranges";
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|   case DW_AT_trampoline:                 return "DW_AT_trampoline";
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|   case DW_AT_call_column:                return "DW_AT_call_column";
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|   case DW_AT_call_file:                  return "DW_AT_call_file";
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|   case DW_AT_call_line:                  return "DW_AT_call_line";
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|   case DW_AT_description:                return "DW_AT_description";
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|   case DW_AT_binary_scale:               return "DW_AT_binary_scale";
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|   case DW_AT_decimal_scale:              return "DW_AT_decimal_scale";
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|   case DW_AT_small:                      return "DW_AT_small";
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|   case DW_AT_decimal_sign:               return "DW_AT_decimal_sign";
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|   case DW_AT_digit_count:                return "DW_AT_digit_count";
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|   case DW_AT_picture_string:             return "DW_AT_picture_string";
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|   case DW_AT_mutable:                    return "DW_AT_mutable";
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|   case DW_AT_threads_scaled:             return "DW_AT_threads_scaled";
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|   case DW_AT_explicit:                   return "DW_AT_explicit";
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|   case DW_AT_object_pointer:             return "DW_AT_object_pointer";
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|   case DW_AT_endianity:                  return "DW_AT_endianity";
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|   case DW_AT_elemental:                  return "DW_AT_elemental";
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|   case DW_AT_pure:                       return "DW_AT_pure";
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|   case DW_AT_recursive:                  return "DW_AT_recursive";
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|   case DW_AT_signature:                  return "DW_AT_signature";
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|   case DW_AT_main_subprogram:            return "DW_AT_main_subprogram";
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|   case DW_AT_data_bit_offset:            return "DW_AT_data_bit_offset";
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|   case DW_AT_const_expr:                 return "DW_AT_const_expr";
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|   case DW_AT_enum_class:                 return "DW_AT_enum_class";
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|   case DW_AT_linkage_name:               return "DW_AT_linkage_name";
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|   case DW_AT_string_length_bit_size:     return "DW_AT_string_length_bit_size";
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|   case DW_AT_string_length_byte_size:    return "DW_AT_string_length_byte_size";
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|   case DW_AT_rank:                       return "DW_AT_rank";
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|   case DW_AT_str_offsets_base:           return "DW_AT_str_offsets_base";
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|   case DW_AT_addr_base:                  return "DW_AT_addr_base";
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|   case DW_AT_ranges_base:                return "DW_AT_ranges_base";
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|   case DW_AT_dwo_id:                     return "DW_AT_dwo_id";
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|   case DW_AT_dwo_name:                   return "DW_AT_dwo_name";
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|   case DW_AT_reference:                  return "DW_AT_reference";
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|   case DW_AT_rvalue_reference:           return "DW_AT_rvalue_reference";
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|   case DW_AT_MIPS_loop_begin:            return "DW_AT_MIPS_loop_begin";
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|   case DW_AT_MIPS_tail_loop_begin:       return "DW_AT_MIPS_tail_loop_begin";
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|   case DW_AT_MIPS_epilog_begin:          return "DW_AT_MIPS_epilog_begin";
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|   case DW_AT_MIPS_loop_unroll_factor:    return "DW_AT_MIPS_loop_unroll_factor";
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|   case DW_AT_MIPS_software_pipeline_depth:
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|     return "DW_AT_MIPS_software_pipeline_depth";
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|   case DW_AT_MIPS_linkage_name:          return "DW_AT_MIPS_linkage_name";
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|   case DW_AT_MIPS_stride:                return "DW_AT_MIPS_stride";
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|   case DW_AT_MIPS_abstract_name:         return "DW_AT_MIPS_abstract_name";
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|   case DW_AT_MIPS_clone_origin:          return "DW_AT_MIPS_clone_origin";
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|   case DW_AT_MIPS_has_inlines:           return "DW_AT_MIPS_has_inlines";
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|   case DW_AT_MIPS_stride_byte:           return "DW_AT_MIPS_stride_byte";
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|   case DW_AT_MIPS_stride_elem:           return "DW_AT_MIPS_stride_elem";
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|   case DW_AT_MIPS_ptr_dopetype:          return "DW_AT_MIPS_ptr_dopetype";
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|   case DW_AT_MIPS_allocatable_dopetype:
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|     return "DW_AT_MIPS_allocatable_dopetype";
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|   case DW_AT_MIPS_assumed_shape_dopetype:
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|     return "DW_AT_MIPS_assumed_shape_dopetype";
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|   case DW_AT_sf_names:                   return "DW_AT_sf_names";
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|   case DW_AT_src_info:                   return "DW_AT_src_info";
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|   case DW_AT_mac_info:                   return "DW_AT_mac_info";
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|   case DW_AT_src_coords:                 return "DW_AT_src_coords";
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|   case DW_AT_body_begin:                 return "DW_AT_body_begin";
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|   case DW_AT_body_end:                   return "DW_AT_body_end";
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|   case DW_AT_GNU_vector:                 return "DW_AT_GNU_vector";
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|   case DW_AT_GNU_template_name:          return "DW_AT_GNU_template_name";
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|   case DW_AT_GNU_odr_signature:          return "DW_AT_GNU_odr_signature";
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|   case DW_AT_MIPS_assumed_size:          return "DW_AT_MIPS_assumed_size";
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|   case DW_AT_lo_user:                    return "DW_AT_lo_user";
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|   case DW_AT_hi_user:                    return "DW_AT_hi_user";
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|   case DW_AT_APPLE_optimized:            return "DW_AT_APPLE_optimized";
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|   case DW_AT_APPLE_flags:                return "DW_AT_APPLE_flags";
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|   case DW_AT_APPLE_isa:                  return "DW_AT_APPLE_isa";
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|   case DW_AT_APPLE_block:                return "DW_AT_APPLE_block";
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|   case DW_AT_APPLE_major_runtime_vers:   return "DW_AT_APPLE_major_runtime_vers";
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|   case DW_AT_APPLE_runtime_class:        return "DW_AT_APPLE_runtime_class";
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|   case DW_AT_APPLE_omit_frame_ptr:       return "DW_AT_APPLE_omit_frame_ptr";
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|   case DW_AT_APPLE_property_name:        return "DW_AT_APPLE_property_name";
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|   case DW_AT_APPLE_property_getter:      return "DW_AT_APPLE_property_getter";
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|   case DW_AT_APPLE_property_setter:      return "DW_AT_APPLE_property_setter";
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|   case DW_AT_APPLE_property_attribute:   return "DW_AT_APPLE_property_attribute";
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|   case DW_AT_APPLE_property:             return "DW_AT_APPLE_property";
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|   case DW_AT_APPLE_objc_complete_type:   return "DW_AT_APPLE_objc_complete_type";
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| 
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|     // DWARF5 Fission Extension Attribute
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|   case DW_AT_GNU_dwo_name:               return "DW_AT_GNU_dwo_name";
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|   case DW_AT_GNU_dwo_id:                 return "DW_AT_GNU_dwo_id";
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|   case DW_AT_GNU_ranges_base:            return "DW_AT_GNU_ranges_base";
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|   case DW_AT_GNU_addr_base:              return "DW_AT_GNU_addr_base";
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|   case DW_AT_GNU_pubnames:               return "DW_AT_GNU_pubnames";
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|   case DW_AT_GNU_pubtypes:               return "DW_AT_GNU_pubtypes";
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|   }
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|   return nullptr;
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| }
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| 
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| const char *llvm::dwarf::FormEncodingString(unsigned Encoding) {
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|   switch (Encoding) {
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|   case DW_FORM_addr:                     return "DW_FORM_addr";
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|   case DW_FORM_block2:                   return "DW_FORM_block2";
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|   case DW_FORM_block4:                   return "DW_FORM_block4";
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|   case DW_FORM_data2:                    return "DW_FORM_data2";
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|   case DW_FORM_data4:                    return "DW_FORM_data4";
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|   case DW_FORM_data8:                    return "DW_FORM_data8";
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|   case DW_FORM_string:                   return "DW_FORM_string";
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|   case DW_FORM_block:                    return "DW_FORM_block";
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|   case DW_FORM_block1:                   return "DW_FORM_block1";
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|   case DW_FORM_data1:                    return "DW_FORM_data1";
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|   case DW_FORM_flag:                     return "DW_FORM_flag";
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|   case DW_FORM_sdata:                    return "DW_FORM_sdata";
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|   case DW_FORM_strp:                     return "DW_FORM_strp";
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|   case DW_FORM_udata:                    return "DW_FORM_udata";
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|   case DW_FORM_ref_addr:                 return "DW_FORM_ref_addr";
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|   case DW_FORM_ref1:                     return "DW_FORM_ref1";
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|   case DW_FORM_ref2:                     return "DW_FORM_ref2";
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|   case DW_FORM_ref4:                     return "DW_FORM_ref4";
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|   case DW_FORM_ref8:                     return "DW_FORM_ref8";
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|   case DW_FORM_ref_udata:                return "DW_FORM_ref_udata";
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|   case DW_FORM_indirect:                 return "DW_FORM_indirect";
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|   case DW_FORM_sec_offset:               return "DW_FORM_sec_offset";
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|   case DW_FORM_exprloc:                  return "DW_FORM_exprloc";
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|   case DW_FORM_flag_present:             return "DW_FORM_flag_present";
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|   case DW_FORM_ref_sig8:                 return "DW_FORM_ref_sig8";
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| 
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|     // DWARF5 Fission Extension Forms
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|   case DW_FORM_GNU_addr_index:           return "DW_FORM_GNU_addr_index";
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|   case DW_FORM_GNU_str_index:            return "DW_FORM_GNU_str_index";
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| 
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|   // Alternate debug sections proposal (output of "dwz" tool).
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|   case DW_FORM_GNU_ref_alt:              return "DW_FORM_GNU_ref_alt";
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|   case DW_FORM_GNU_strp_alt:             return "DW_FORM_GNU_strp_alt";
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|   }
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|   return nullptr;
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| }
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| 
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| const char *llvm::dwarf::OperationEncodingString(unsigned Encoding) {
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|   switch (Encoding) {
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|   default: return nullptr;
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| #define HANDLE_DW_OP(ID, NAME)                                                 \
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|   case DW_OP_##NAME:                                                           \
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|     return "DW_OP_" #NAME;
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| #include "llvm/Support/Dwarf.def"
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|   }
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| }
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| 
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| unsigned llvm::dwarf::getOperationEncoding(StringRef OperationEncodingString) {
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|   return StringSwitch<unsigned>(OperationEncodingString)
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| #define HANDLE_DW_OP(ID, NAME) .Case("DW_OP_" #NAME, DW_OP_##NAME)
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| #include "llvm/Support/Dwarf.def"
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|       .Default(0);
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| }
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| 
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| const char *llvm::dwarf::AttributeEncodingString(unsigned Encoding) {
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|   switch (Encoding) {
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|   default: return nullptr;
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| #define HANDLE_DW_ATE(ID, NAME)                                                \
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|   case DW_ATE_##NAME:                                                          \
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|     return "DW_ATE_" #NAME;
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| #include "llvm/Support/Dwarf.def"
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|   }
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| }
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| 
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| unsigned llvm::dwarf::getAttributeEncoding(StringRef EncodingString) {
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|   return StringSwitch<unsigned>(EncodingString)
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| #define HANDLE_DW_ATE(ID, NAME) .Case("DW_ATE_" #NAME, DW_ATE_##NAME)
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| #include "llvm/Support/Dwarf.def"
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|       .Default(0);
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| }
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| 
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| const char *llvm::dwarf::DecimalSignString(unsigned Sign) {
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|   switch (Sign) {
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|   case DW_DS_unsigned:                   return "DW_DS_unsigned";
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|   case DW_DS_leading_overpunch:          return "DW_DS_leading_overpunch";
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|   case DW_DS_trailing_overpunch:         return "DW_DS_trailing_overpunch";
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|   case DW_DS_leading_separate:           return "DW_DS_leading_separate";
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|   case DW_DS_trailing_separate:          return "DW_DS_trailing_separate";
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|   }
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|   return nullptr;
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| }
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| 
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| const char *llvm::dwarf::EndianityString(unsigned Endian) {
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|   switch (Endian) {
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|   case DW_END_default:                   return "DW_END_default";
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|   case DW_END_big:                       return "DW_END_big";
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|   case DW_END_little:                    return "DW_END_little";
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|   case DW_END_lo_user:                   return "DW_END_lo_user";
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|   case DW_END_hi_user:                   return "DW_END_hi_user";
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|   }
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|   return nullptr;
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| }
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| 
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| const char *llvm::dwarf::AccessibilityString(unsigned Access) {
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|   switch (Access) {
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|   // Accessibility codes
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|   case DW_ACCESS_public:                 return "DW_ACCESS_public";
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|   case DW_ACCESS_protected:              return "DW_ACCESS_protected";
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|   case DW_ACCESS_private:                return "DW_ACCESS_private";
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|   }
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|   return nullptr;
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| }
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| 
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| const char *llvm::dwarf::VisibilityString(unsigned Visibility) {
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|   switch (Visibility) {
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|   case DW_VIS_local:                     return "DW_VIS_local";
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|   case DW_VIS_exported:                  return "DW_VIS_exported";
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|   case DW_VIS_qualified:                 return "DW_VIS_qualified";
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|   }
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|   return nullptr;
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| }
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| 
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| const char *llvm::dwarf::VirtualityString(unsigned Virtuality) {
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|   switch (Virtuality) {
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|   default:
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|     return nullptr;
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| #define HANDLE_DW_VIRTUALITY(ID, NAME)                                         \
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|   case DW_VIRTUALITY_##NAME:                                                   \
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|     return "DW_VIRTUALITY_" #NAME;
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| #include "llvm/Support/Dwarf.def"
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|   }
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| }
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| 
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| unsigned llvm::dwarf::getVirtuality(StringRef VirtualityString) {
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|   return StringSwitch<unsigned>(VirtualityString)
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| #define HANDLE_DW_VIRTUALITY(ID, NAME)                                         \
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|   .Case("DW_VIRTUALITY_" #NAME, DW_VIRTUALITY_##NAME)
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| #include "llvm/Support/Dwarf.def"
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|       .Default(DW_VIRTUALITY_invalid);
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| }
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| 
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| const char *llvm::dwarf::LanguageString(unsigned Language) {
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|   switch (Language) {
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|   default:
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|     return nullptr;
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| #define HANDLE_DW_LANG(ID, NAME)                                               \
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|   case DW_LANG_##NAME:                                                         \
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|     return "DW_LANG_" #NAME;
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| #include "llvm/Support/Dwarf.def"
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|   }
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| }
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| 
 | |
| unsigned llvm::dwarf::getLanguage(StringRef LanguageString) {
 | |
|   return StringSwitch<unsigned>(LanguageString)
 | |
| #define HANDLE_DW_LANG(ID, NAME) .Case("DW_LANG_" #NAME, DW_LANG_##NAME)
 | |
| #include "llvm/Support/Dwarf.def"
 | |
|       .Default(0);
 | |
| }
 | |
| 
 | |
| const char *llvm::dwarf::CaseString(unsigned Case) {
 | |
|   switch (Case) {
 | |
|   case DW_ID_case_sensitive:             return "DW_ID_case_sensitive";
 | |
|   case DW_ID_up_case:                    return "DW_ID_up_case";
 | |
|   case DW_ID_down_case:                  return "DW_ID_down_case";
 | |
|   case DW_ID_case_insensitive:           return "DW_ID_case_insensitive";
 | |
|   }
 | |
|   return nullptr;
 | |
| }
 | |
| 
 | |
| const char *llvm::dwarf::ConventionString(unsigned Convention) {
 | |
|    switch (Convention) {
 | |
|    case DW_CC_normal:                     return "DW_CC_normal";
 | |
|    case DW_CC_program:                    return "DW_CC_program";
 | |
|    case DW_CC_nocall:                     return "DW_CC_nocall";
 | |
|    case DW_CC_lo_user:                    return "DW_CC_lo_user";
 | |
|    case DW_CC_hi_user:                    return "DW_CC_hi_user";
 | |
|   }
 | |
|   return nullptr;
 | |
| }
 | |
| 
 | |
| const char *llvm::dwarf::InlineCodeString(unsigned Code) {
 | |
|   switch (Code) {
 | |
|   case DW_INL_not_inlined:               return "DW_INL_not_inlined";
 | |
|   case DW_INL_inlined:                   return "DW_INL_inlined";
 | |
|   case DW_INL_declared_not_inlined:      return "DW_INL_declared_not_inlined";
 | |
|   case DW_INL_declared_inlined:          return "DW_INL_declared_inlined";
 | |
|   }
 | |
|   return nullptr;
 | |
| }
 | |
| 
 | |
| const char *llvm::dwarf::ArrayOrderString(unsigned Order) {
 | |
|   switch (Order) {
 | |
|   case DW_ORD_row_major:                 return "DW_ORD_row_major";
 | |
|   case DW_ORD_col_major:                 return "DW_ORD_col_major";
 | |
|   }
 | |
|   return nullptr;
 | |
| }
 | |
| 
 | |
| const char *llvm::dwarf::DiscriminantString(unsigned Discriminant) {
 | |
|   switch (Discriminant) {
 | |
|   case DW_DSC_label:                     return "DW_DSC_label";
 | |
|   case DW_DSC_range:                     return "DW_DSC_range";
 | |
|   }
 | |
|   return nullptr;
 | |
| }
 | |
| 
 | |
| const char *llvm::dwarf::LNStandardString(unsigned Standard) {
 | |
|   switch (Standard) {
 | |
|   case DW_LNS_copy:                      return "DW_LNS_copy";
 | |
|   case DW_LNS_advance_pc:                return "DW_LNS_advance_pc";
 | |
|   case DW_LNS_advance_line:              return "DW_LNS_advance_line";
 | |
|   case DW_LNS_set_file:                  return "DW_LNS_set_file";
 | |
|   case DW_LNS_set_column:                return "DW_LNS_set_column";
 | |
|   case DW_LNS_negate_stmt:               return "DW_LNS_negate_stmt";
 | |
|   case DW_LNS_set_basic_block:           return "DW_LNS_set_basic_block";
 | |
|   case DW_LNS_const_add_pc:              return "DW_LNS_const_add_pc";
 | |
|   case DW_LNS_fixed_advance_pc:          return "DW_LNS_fixed_advance_pc";
 | |
|   case DW_LNS_set_prologue_end:          return "DW_LNS_set_prologue_end";
 | |
|   case DW_LNS_set_epilogue_begin:        return "DW_LNS_set_epilogue_begin";
 | |
|   case DW_LNS_set_isa:                   return "DW_LNS_set_isa";
 | |
|   }
 | |
|   return nullptr;
 | |
| }
 | |
| 
 | |
| const char *llvm::dwarf::LNExtendedString(unsigned Encoding) {
 | |
|   switch (Encoding) {
 | |
|   // Line Number Extended Opcode Encodings
 | |
|   case DW_LNE_end_sequence:              return "DW_LNE_end_sequence";
 | |
|   case DW_LNE_set_address:               return "DW_LNE_set_address";
 | |
|   case DW_LNE_define_file:               return "DW_LNE_define_file";
 | |
|   case DW_LNE_set_discriminator:         return "DW_LNE_set_discriminator";
 | |
|   case DW_LNE_lo_user:                   return "DW_LNE_lo_user";
 | |
|   case DW_LNE_hi_user:                   return "DW_LNE_hi_user";
 | |
|   }
 | |
|   return nullptr;
 | |
| }
 | |
| 
 | |
| const char *llvm::dwarf::MacinfoString(unsigned Encoding) {
 | |
|   switch (Encoding) {
 | |
|   // Macinfo Type Encodings
 | |
|   case DW_MACINFO_define:                return "DW_MACINFO_define";
 | |
|   case DW_MACINFO_undef:                 return "DW_MACINFO_undef";
 | |
|   case DW_MACINFO_start_file:            return "DW_MACINFO_start_file";
 | |
|   case DW_MACINFO_end_file:              return "DW_MACINFO_end_file";
 | |
|   case DW_MACINFO_vendor_ext:            return "DW_MACINFO_vendor_ext";
 | |
|   }
 | |
|   return nullptr;
 | |
| }
 | |
| 
 | |
| const char *llvm::dwarf::CallFrameString(unsigned Encoding) {
 | |
|   switch (Encoding) {
 | |
|   case DW_CFA_nop:                       return "DW_CFA_nop";
 | |
|   case DW_CFA_advance_loc:               return "DW_CFA_advance_loc";
 | |
|   case DW_CFA_offset:                    return "DW_CFA_offset";
 | |
|   case DW_CFA_restore:                   return "DW_CFA_restore";
 | |
|   case DW_CFA_set_loc:                   return "DW_CFA_set_loc";
 | |
|   case DW_CFA_advance_loc1:              return "DW_CFA_advance_loc1";
 | |
|   case DW_CFA_advance_loc2:              return "DW_CFA_advance_loc2";
 | |
|   case DW_CFA_advance_loc4:              return "DW_CFA_advance_loc4";
 | |
|   case DW_CFA_offset_extended:           return "DW_CFA_offset_extended";
 | |
|   case DW_CFA_restore_extended:          return "DW_CFA_restore_extended";
 | |
|   case DW_CFA_undefined:                 return "DW_CFA_undefined";
 | |
|   case DW_CFA_same_value:                return "DW_CFA_same_value";
 | |
|   case DW_CFA_register:                  return "DW_CFA_register";
 | |
|   case DW_CFA_remember_state:            return "DW_CFA_remember_state";
 | |
|   case DW_CFA_restore_state:             return "DW_CFA_restore_state";
 | |
|   case DW_CFA_def_cfa:                   return "DW_CFA_def_cfa";
 | |
|   case DW_CFA_def_cfa_register:          return "DW_CFA_def_cfa_register";
 | |
|   case DW_CFA_def_cfa_offset:            return "DW_CFA_def_cfa_offset";
 | |
|   case DW_CFA_def_cfa_expression:        return "DW_CFA_def_cfa_expression";
 | |
|   case DW_CFA_expression:                return "DW_CFA_expression";
 | |
|   case DW_CFA_offset_extended_sf:        return "DW_CFA_offset_extended_sf";
 | |
|   case DW_CFA_def_cfa_sf:                return "DW_CFA_def_cfa_sf";
 | |
|   case DW_CFA_def_cfa_offset_sf:         return "DW_CFA_def_cfa_offset_sf";
 | |
|   case DW_CFA_val_offset:                return "DW_CFA_val_offset";
 | |
|   case DW_CFA_val_offset_sf:             return "DW_CFA_val_offset_sf";
 | |
|   case DW_CFA_val_expression:            return "DW_CFA_val_expression";
 | |
|   case DW_CFA_MIPS_advance_loc8:         return "DW_CFA_MIPS_advance_loc8";
 | |
|   case DW_CFA_GNU_window_save:           return "DW_CFA_GNU_window_save";
 | |
|   case DW_CFA_GNU_args_size:             return "DW_CFA_GNU_args_size";
 | |
|   case DW_CFA_lo_user:                   return "DW_CFA_lo_user";
 | |
|   case DW_CFA_hi_user:                   return "DW_CFA_hi_user";
 | |
|   }
 | |
|   return nullptr;
 | |
| }
 | |
| 
 | |
| const char *llvm::dwarf::ApplePropertyString(unsigned Prop) {
 | |
|   switch (Prop) {
 | |
|   case DW_APPLE_PROPERTY_readonly:
 | |
|     return "DW_APPLE_PROPERTY_readonly";
 | |
|   case DW_APPLE_PROPERTY_getter:
 | |
|     return "DW_APPLE_PROPERTY_getter";
 | |
|   case DW_APPLE_PROPERTY_assign:
 | |
|     return "DW_APPLE_PROPERTY_assign";
 | |
|   case DW_APPLE_PROPERTY_readwrite:
 | |
|     return "DW_APPLE_PROPERTY_readwrite";
 | |
|   case DW_APPLE_PROPERTY_retain:
 | |
|     return "DW_APPLE_PROPERTY_retain";
 | |
|   case DW_APPLE_PROPERTY_copy:
 | |
|     return "DW_APPLE_PROPERTY_copy";
 | |
|   case DW_APPLE_PROPERTY_nonatomic:
 | |
|     return "DW_APPLE_PROPERTY_nonatomic";
 | |
|   case DW_APPLE_PROPERTY_setter:
 | |
|     return "DW_APPLE_PROPERTY_setter";
 | |
|   case DW_APPLE_PROPERTY_atomic:
 | |
|     return "DW_APPLE_PROPERTY_atomic";
 | |
|   case DW_APPLE_PROPERTY_weak:
 | |
|     return "DW_APPLE_PROPERTY_weak";
 | |
|   case DW_APPLE_PROPERTY_strong:
 | |
|     return "DW_APPLE_PROPERTY_strong";
 | |
|   case DW_APPLE_PROPERTY_unsafe_unretained:
 | |
|     return "DW_APPLE_PROPERTY_unsafe_unretained";
 | |
|   }
 | |
|   return nullptr;
 | |
| }
 | |
| 
 | |
| const char *llvm::dwarf::AtomTypeString(unsigned AT) {
 | |
|   switch (AT) {
 | |
|   case dwarf::DW_ATOM_null:
 | |
|     return "DW_ATOM_null";
 | |
|   case dwarf::DW_ATOM_die_offset:
 | |
|     return "DW_ATOM_die_offset";
 | |
|   case DW_ATOM_cu_offset:
 | |
|     return "DW_ATOM_cu_offset";
 | |
|   case DW_ATOM_die_tag:
 | |
|     return "DW_ATOM_die_tag";
 | |
|   case DW_ATOM_type_flags:
 | |
|     return "DW_ATOM_type_flags";
 | |
|   }
 | |
|   return nullptr;
 | |
| }
 | |
| 
 | |
| const char *llvm::dwarf::GDBIndexEntryKindString(GDBIndexEntryKind Kind) {
 | |
|   switch (Kind) {
 | |
|   case GIEK_NONE:
 | |
|     return "NONE";
 | |
|   case GIEK_TYPE:
 | |
|     return "TYPE";
 | |
|   case GIEK_VARIABLE:
 | |
|     return "VARIABLE";
 | |
|   case GIEK_FUNCTION:
 | |
|     return "FUNCTION";
 | |
|   case GIEK_OTHER:
 | |
|     return "OTHER";
 | |
|   case GIEK_UNUSED5:
 | |
|     return "UNUSED5";
 | |
|   case GIEK_UNUSED6:
 | |
|     return "UNUSED6";
 | |
|   case GIEK_UNUSED7:
 | |
|     return "UNUSED7";
 | |
|   }
 | |
|   llvm_unreachable("Unknown GDBIndexEntryKind value");
 | |
| }
 | |
| 
 | |
| const char *llvm::dwarf::GDBIndexEntryLinkageString(GDBIndexEntryLinkage Linkage) {
 | |
|   switch (Linkage) {
 | |
|   case GIEL_EXTERNAL:
 | |
|     return "EXTERNAL";
 | |
|   case GIEL_STATIC:
 | |
|     return "STATIC";
 | |
|   }
 | |
|   llvm_unreachable("Unknown GDBIndexEntryLinkage value");
 | |
| }
 | |
| 
 | |
| const char *llvm::dwarf::AttributeValueString(uint16_t Attr, unsigned Val) {
 | |
|   switch (Attr) {
 | |
|   case DW_AT_accessibility:
 | |
|     return AccessibilityString(Val);
 | |
|   case DW_AT_virtuality:
 | |
|     return VirtualityString(Val);
 | |
|   case DW_AT_language:
 | |
|     return LanguageString(Val);
 | |
|   case DW_AT_encoding:
 | |
|     return AttributeEncodingString(Val);
 | |
|   case DW_AT_decimal_sign:
 | |
|     return DecimalSignString(Val);
 | |
|   case DW_AT_endianity:
 | |
|     return EndianityString(Val);
 | |
|   case DW_AT_visibility:
 | |
|     return VisibilityString(Val);
 | |
|   case DW_AT_identifier_case:
 | |
|     return CaseString(Val);
 | |
|   case DW_AT_calling_convention:
 | |
|     return ConventionString(Val);
 | |
|   case DW_AT_inline:
 | |
|     return InlineCodeString(Val);
 | |
|   case DW_AT_ordering:
 | |
|     return ArrayOrderString(Val);
 | |
|   case DW_AT_discr_value:
 | |
|     return DiscriminantString(Val);
 | |
|   }
 | |
| 
 | |
|   return nullptr;
 | |
| }
 |