1 /* Copyright (C) 2007-2010 The Android Open Source Project 2 ** 3 ** This software is licensed under the terms of the GNU General Public 4 ** License version 2, as published by the Free Software Foundation, and 5 ** may be copied, distributed, and modified under those terms. 6 ** 7 ** This program is distributed in the hope that it will be useful, 8 ** but WITHOUT ANY WARRANTY; without even the implied warranty of 9 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 10 ** GNU General Public License for more details. 11 */ 12 13 /* 14 * Contains implementation of misc. DWARF utility routines. 15 */ 16 17 #include <stdio.h> 18 #define __STDC_FORMAT_MACROS 1 19 #include <inttypes.h> 20 #include "dwarf_utils.h" 21 22 /* "Stringifies" the parameter. */ 23 #define DWARF_NAMEFY(val) case val: return "" #val "" 24 25 /* "Stringifies" two parameters. */ 26 #define DWARF_NAMEFY2(val1, val2) case val1: return "" #val1 " | " #val2 "" 27 28 const char* 29 dwarf_at_name(Dwarf_At at) { 30 switch (at) { 31 DWARF_NAMEFY(DW_AT_sibling); 32 DWARF_NAMEFY(DW_AT_location); 33 DWARF_NAMEFY(DW_AT_name); 34 DWARF_NAMEFY(DW_AT_ordering); 35 DWARF_NAMEFY(DW_AT_subscr_data); 36 DWARF_NAMEFY(DW_AT_byte_size); 37 DWARF_NAMEFY(DW_AT_bit_offset); 38 DWARF_NAMEFY(DW_AT_bit_size); 39 DWARF_NAMEFY(DW_AT_element_list); 40 DWARF_NAMEFY(DW_AT_stmt_list); 41 DWARF_NAMEFY(DW_AT_low_pc); 42 DWARF_NAMEFY(DW_AT_high_pc); 43 DWARF_NAMEFY(DW_AT_language); 44 DWARF_NAMEFY(DW_AT_member); 45 DWARF_NAMEFY(DW_AT_discr); 46 DWARF_NAMEFY(DW_AT_discr_value); 47 DWARF_NAMEFY(DW_AT_visibility); 48 DWARF_NAMEFY(DW_AT_import); 49 DWARF_NAMEFY(DW_AT_string_length); 50 DWARF_NAMEFY(DW_AT_common_reference); 51 DWARF_NAMEFY(DW_AT_comp_dir); 52 DWARF_NAMEFY(DW_AT_const_value); 53 DWARF_NAMEFY(DW_AT_containing_type); 54 DWARF_NAMEFY(DW_AT_default_value); 55 DWARF_NAMEFY(DW_AT_inline); 56 DWARF_NAMEFY(DW_AT_is_optional); 57 DWARF_NAMEFY(DW_AT_lower_bound); 58 DWARF_NAMEFY(DW_AT_producer); 59 DWARF_NAMEFY(DW_AT_prototyped); 60 DWARF_NAMEFY(DW_AT_return_addr); 61 DWARF_NAMEFY(DW_AT_start_scope); 62 DWARF_NAMEFY2(DW_AT_bit_stride, DW_AT_stride_size); 63 DWARF_NAMEFY(DW_AT_upper_bound); 64 DWARF_NAMEFY(DW_AT_abstract_origin); 65 DWARF_NAMEFY(DW_AT_accessibility); 66 DWARF_NAMEFY(DW_AT_address_class); 67 DWARF_NAMEFY(DW_AT_artificial); 68 DWARF_NAMEFY(DW_AT_base_types); 69 DWARF_NAMEFY(DW_AT_calling_convention); 70 DWARF_NAMEFY(DW_AT_count); 71 DWARF_NAMEFY(DW_AT_data_member_location); 72 DWARF_NAMEFY(DW_AT_decl_column); 73 DWARF_NAMEFY(DW_AT_decl_file); 74 DWARF_NAMEFY(DW_AT_decl_line); 75 DWARF_NAMEFY(DW_AT_declaration); 76 DWARF_NAMEFY(DW_AT_discr_list); 77 DWARF_NAMEFY(DW_AT_encoding); 78 DWARF_NAMEFY(DW_AT_external); 79 DWARF_NAMEFY(DW_AT_frame_base); 80 DWARF_NAMEFY(DW_AT_friend); 81 DWARF_NAMEFY(DW_AT_identifier_case); 82 DWARF_NAMEFY(DW_AT_macro_info); 83 DWARF_NAMEFY(DW_AT_namelist_item); 84 DWARF_NAMEFY(DW_AT_priority); 85 DWARF_NAMEFY(DW_AT_segment); 86 DWARF_NAMEFY(DW_AT_specification); 87 DWARF_NAMEFY(DW_AT_static_link); 88 DWARF_NAMEFY(DW_AT_type); 89 DWARF_NAMEFY(DW_AT_use_location); 90 DWARF_NAMEFY(DW_AT_variable_parameter); 91 DWARF_NAMEFY(DW_AT_virtuality); 92 DWARF_NAMEFY(DW_AT_vtable_elem_location); 93 DWARF_NAMEFY(DW_AT_allocated); 94 DWARF_NAMEFY(DW_AT_associated); 95 DWARF_NAMEFY(DW_AT_data_location); 96 DWARF_NAMEFY2(DW_AT_byte_stride, DW_AT_stride); 97 DWARF_NAMEFY(DW_AT_entry_pc); 98 DWARF_NAMEFY(DW_AT_use_UTF8); 99 DWARF_NAMEFY(DW_AT_extension); 100 DWARF_NAMEFY(DW_AT_ranges); 101 DWARF_NAMEFY(DW_AT_trampoline); 102 DWARF_NAMEFY(DW_AT_call_column); 103 DWARF_NAMEFY(DW_AT_call_file); 104 DWARF_NAMEFY(DW_AT_call_line); 105 DWARF_NAMEFY(DW_AT_description); 106 DWARF_NAMEFY(DW_AT_binary_scale); 107 DWARF_NAMEFY(DW_AT_decimal_scale); 108 DWARF_NAMEFY(DW_AT_small); 109 DWARF_NAMEFY(DW_AT_decimal_sign); 110 DWARF_NAMEFY(DW_AT_digit_count); 111 DWARF_NAMEFY(DW_AT_picture_string); 112 DWARF_NAMEFY(DW_AT_mutable); 113 DWARF_NAMEFY(DW_AT_threads_scaled); 114 DWARF_NAMEFY(DW_AT_explicit); 115 DWARF_NAMEFY(DW_AT_object_pointer); 116 DWARF_NAMEFY(DW_AT_endianity); 117 DWARF_NAMEFY(DW_AT_elemental); 118 DWARF_NAMEFY(DW_AT_pure); 119 DWARF_NAMEFY(DW_AT_recursive); 120 DWARF_NAMEFY(DW_AT_signature); 121 DWARF_NAMEFY(DW_AT_main_subprogram); 122 DWARF_NAMEFY(DW_AT_data_bit_offset); 123 DWARF_NAMEFY(DW_AT_const_expr); 124 DWARF_NAMEFY(DW_AT_enum_class); 125 DWARF_NAMEFY(DW_AT_linkage_name); 126 default: 127 return "DW_AT_Unknown"; 128 } 129 } 130 131 const char* 132 dwarf_form_name(Dwarf_Form form) { 133 switch (form) { 134 DWARF_NAMEFY(DW_FORM_addr); 135 DWARF_NAMEFY(DW_FORM_block2); 136 DWARF_NAMEFY(DW_FORM_block4); 137 DWARF_NAMEFY(DW_FORM_data2); 138 DWARF_NAMEFY(DW_FORM_data4); 139 DWARF_NAMEFY(DW_FORM_data8); 140 DWARF_NAMEFY(DW_FORM_string); 141 DWARF_NAMEFY(DW_FORM_block); 142 DWARF_NAMEFY(DW_FORM_block1); 143 DWARF_NAMEFY(DW_FORM_data1); 144 DWARF_NAMEFY(DW_FORM_flag); 145 DWARF_NAMEFY(DW_FORM_sdata); 146 DWARF_NAMEFY(DW_FORM_strp); 147 DWARF_NAMEFY(DW_FORM_udata); 148 DWARF_NAMEFY(DW_FORM_ref_addr); 149 DWARF_NAMEFY(DW_FORM_ref1); 150 DWARF_NAMEFY(DW_FORM_ref2); 151 DWARF_NAMEFY(DW_FORM_ref4); 152 DWARF_NAMEFY(DW_FORM_ref8); 153 DWARF_NAMEFY(DW_FORM_ref_udata); 154 DWARF_NAMEFY(DW_FORM_indirect); 155 DWARF_NAMEFY(DW_FORM_sec_offset); 156 DWARF_NAMEFY(DW_FORM_exprloc); 157 DWARF_NAMEFY(DW_FORM_flag_present); 158 DWARF_NAMEFY(DW_FORM_ref_sig8); 159 default: 160 return "DW_FORM_Unknown"; 161 } 162 } 163 164 const char* 165 dwarf_tag_name(Dwarf_Tag tag) { 166 switch (tag) { 167 DWARF_NAMEFY(DW_TAG_array_type); 168 DWARF_NAMEFY(DW_TAG_class_type); 169 DWARF_NAMEFY(DW_TAG_entry_point); 170 DWARF_NAMEFY(DW_TAG_enumeration_type); 171 DWARF_NAMEFY(DW_TAG_formal_parameter); 172 DWARF_NAMEFY(DW_TAG_imported_declaration); 173 DWARF_NAMEFY(DW_TAG_label); 174 DWARF_NAMEFY(DW_TAG_lexical_block); 175 DWARF_NAMEFY(DW_TAG_member); 176 DWARF_NAMEFY(DW_TAG_pointer_type); 177 DWARF_NAMEFY(DW_TAG_reference_type); 178 DWARF_NAMEFY(DW_TAG_compile_unit); 179 DWARF_NAMEFY(DW_TAG_string_type); 180 DWARF_NAMEFY(DW_TAG_structure_type); 181 DWARF_NAMEFY(DW_TAG_subroutine_type); 182 DWARF_NAMEFY(DW_TAG_typedef); 183 DWARF_NAMEFY(DW_TAG_union_type); 184 DWARF_NAMEFY(DW_TAG_unspecified_parameters); 185 DWARF_NAMEFY(DW_TAG_variant); 186 DWARF_NAMEFY(DW_TAG_common_block); 187 DWARF_NAMEFY(DW_TAG_common_inclusion); 188 DWARF_NAMEFY(DW_TAG_inheritance); 189 DWARF_NAMEFY(DW_TAG_inlined_subroutine); 190 DWARF_NAMEFY(DW_TAG_module); 191 DWARF_NAMEFY(DW_TAG_ptr_to_member_type); 192 DWARF_NAMEFY(DW_TAG_set_type); 193 DWARF_NAMEFY(DW_TAG_subrange_type); 194 DWARF_NAMEFY(DW_TAG_with_stmt); 195 DWARF_NAMEFY(DW_TAG_access_declaration); 196 DWARF_NAMEFY(DW_TAG_base_type); 197 DWARF_NAMEFY(DW_TAG_catch_block); 198 DWARF_NAMEFY(DW_TAG_const_type); 199 DWARF_NAMEFY(DW_TAG_constant); 200 DWARF_NAMEFY(DW_TAG_enumerator); 201 DWARF_NAMEFY(DW_TAG_file_type); 202 DWARF_NAMEFY(DW_TAG_friend); 203 DWARF_NAMEFY(DW_TAG_namelist); 204 DWARF_NAMEFY2(DW_TAG_namelist_item, DW_TAG_namelist_items); 205 DWARF_NAMEFY(DW_TAG_packed_type); 206 DWARF_NAMEFY(DW_TAG_subprogram); 207 DWARF_NAMEFY2(DW_TAG_template_type_parameter, DW_TAG_template_type_param); 208 DWARF_NAMEFY2(DW_TAG_template_value_parameter, 209 DW_TAG_template_value_param); 210 DWARF_NAMEFY(DW_TAG_thrown_type); 211 DWARF_NAMEFY(DW_TAG_try_block); 212 DWARF_NAMEFY(DW_TAG_variant_part); 213 DWARF_NAMEFY(DW_TAG_variable); 214 DWARF_NAMEFY(DW_TAG_volatile_type); 215 DWARF_NAMEFY(DW_TAG_dwarf_procedure); 216 DWARF_NAMEFY(DW_TAG_restrict_type); 217 DWARF_NAMEFY(DW_TAG_interface_type); 218 DWARF_NAMEFY(DW_TAG_namespace); 219 DWARF_NAMEFY(DW_TAG_imported_module); 220 DWARF_NAMEFY(DW_TAG_unspecified_type); 221 DWARF_NAMEFY(DW_TAG_partial_unit); 222 DWARF_NAMEFY(DW_TAG_imported_unit); 223 DWARF_NAMEFY(DW_TAG_mutable_type); 224 DWARF_NAMEFY(DW_TAG_condition); 225 DWARF_NAMEFY(DW_TAG_shared_type); 226 DWARF_NAMEFY(DW_TAG_type_unit); 227 DWARF_NAMEFY(DW_TAG_rvalue_reference_type); 228 DWARF_NAMEFY(DW_TAG_template_alias); 229 default: 230 return "DW_TAG_Unknown"; 231 } 232 } 233 234 void 235 dump_attrib(Dwarf_At at, Dwarf_Form form, const Dwarf_Value* val) { 236 if (form != 0) { 237 printf(" +++ Attribute: %s [%s]\n", 238 dwarf_at_name(at), dwarf_form_name(form)); 239 } else { 240 printf(" +++ Attribute: %s\n", dwarf_at_name(at)); 241 } 242 dump_value(val); 243 } 244 245 void 246 dump_value(const Dwarf_Value* attr_value) { 247 printf(" Data[%03u]: (", attr_value->encoded_size); 248 switch (attr_value->type) { 249 case DWARF_VALUE_U8: 250 printf("BYTE) = %u (x%02X)\n", (Elf_Word)attr_value->u8, 251 (Elf_Word)attr_value->u8); 252 break; 253 254 case DWARF_VALUE_S8: 255 printf("SBYTE) = %d (x%02X)\n", (Elf_Sword)attr_value->s8, 256 (Elf_Sword)attr_value->s8); 257 break; 258 259 case DWARF_VALUE_U16: 260 printf("WORD) = %u (x%04X)\n", (Elf_Word)attr_value->u16, 261 (Elf_Word)attr_value->u16); 262 break; 263 264 case DWARF_VALUE_S16: 265 printf("SWORD) = %d (x%04X)\n", (Elf_Sword)attr_value->s16, 266 (Elf_Sword)attr_value->s16); 267 break; 268 269 case DWARF_VALUE_U32: 270 printf("DWORD) = %u (x%08X)\n", attr_value->u32, 271 attr_value->u32); 272 break; 273 274 case DWARF_VALUE_S32: 275 printf("SDWORD) = %d (x%08X)\n", attr_value->s32, 276 attr_value->s32); 277 break; 278 279 case DWARF_VALUE_U64: 280 printf("XWORD) = %" PRIu64 " (x%" PRIX64 ")\n", attr_value->u64, 281 attr_value->u64); 282 break; 283 284 case DWARF_VALUE_S64: 285 printf("SXWORD) = %" PRId64 " (x%" PRIX64 ")\n", attr_value->s64, 286 attr_value->s64); 287 break; 288 289 case DWARF_VALUE_STR: 290 printf("STRING) = %s\n", attr_value->str); 291 break; 292 293 case DWARF_VALUE_PTR32: 294 printf("PTR32) = x%08X\n", attr_value->ptr32); 295 break; 296 297 case DWARF_VALUE_PTR64: 298 printf("PTR64) = x%08" PRIX64 "\n", attr_value->ptr64); 299 break; 300 301 case DWARF_VALUE_BLOCK: 302 printf("BLOCK) = [%u]:", attr_value->block.block_size); 303 for (Elf_Xword i = 0; i < attr_value->block.block_size; i++) { 304 Elf_Byte prnt = *((const Elf_Byte*)attr_value->block.block_ptr + i); 305 printf(" x%02X", prnt); 306 } 307 printf("\n"); 308 break; 309 310 case DWARF_VALUE_UNKNOWN: 311 default: 312 printf("UNKNOWN)"); 313 break; 314 } 315 } 316
