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 #include "dwarf_utils.h" 19 20 /* "Stringifies" the parameter. */ 21 #define DWARF_NAMEFY(val) case val: return "" #val "" 22 23 /* "Stringifies" two parameters. */ 24 #define DWARF_NAMEFY2(val1, val2) case val1: return "" #val1 " | " #val2 "" 25 26 const char* 27 dwarf_at_name(Dwarf_At at) { 28 switch (at) { 29 DWARF_NAMEFY(DW_AT_sibling); 30 DWARF_NAMEFY(DW_AT_location); 31 DWARF_NAMEFY(DW_AT_name); 32 DWARF_NAMEFY(DW_AT_ordering); 33 DWARF_NAMEFY(DW_AT_subscr_data); 34 DWARF_NAMEFY(DW_AT_byte_size); 35 DWARF_NAMEFY(DW_AT_bit_offset); 36 DWARF_NAMEFY(DW_AT_bit_size); 37 DWARF_NAMEFY(DW_AT_element_list); 38 DWARF_NAMEFY(DW_AT_stmt_list); 39 DWARF_NAMEFY(DW_AT_low_pc); 40 DWARF_NAMEFY(DW_AT_high_pc); 41 DWARF_NAMEFY(DW_AT_language); 42 DWARF_NAMEFY(DW_AT_member); 43 DWARF_NAMEFY(DW_AT_discr); 44 DWARF_NAMEFY(DW_AT_discr_value); 45 DWARF_NAMEFY(DW_AT_visibility); 46 DWARF_NAMEFY(DW_AT_import); 47 DWARF_NAMEFY(DW_AT_string_length); 48 DWARF_NAMEFY(DW_AT_common_reference); 49 DWARF_NAMEFY(DW_AT_comp_dir); 50 DWARF_NAMEFY(DW_AT_const_value); 51 DWARF_NAMEFY(DW_AT_containing_type); 52 DWARF_NAMEFY(DW_AT_default_value); 53 DWARF_NAMEFY(DW_AT_inline); 54 DWARF_NAMEFY(DW_AT_is_optional); 55 DWARF_NAMEFY(DW_AT_lower_bound); 56 DWARF_NAMEFY(DW_AT_producer); 57 DWARF_NAMEFY(DW_AT_prototyped); 58 DWARF_NAMEFY(DW_AT_return_addr); 59 DWARF_NAMEFY(DW_AT_start_scope); 60 DWARF_NAMEFY2(DW_AT_bit_stride, DW_AT_stride_size); 61 DWARF_NAMEFY(DW_AT_upper_bound); 62 DWARF_NAMEFY(DW_AT_abstract_origin); 63 DWARF_NAMEFY(DW_AT_accessibility); 64 DWARF_NAMEFY(DW_AT_address_class); 65 DWARF_NAMEFY(DW_AT_artificial); 66 DWARF_NAMEFY(DW_AT_base_types); 67 DWARF_NAMEFY(DW_AT_calling_convention); 68 DWARF_NAMEFY(DW_AT_count); 69 DWARF_NAMEFY(DW_AT_data_member_location); 70 DWARF_NAMEFY(DW_AT_decl_column); 71 DWARF_NAMEFY(DW_AT_decl_file); 72 DWARF_NAMEFY(DW_AT_decl_line); 73 DWARF_NAMEFY(DW_AT_declaration); 74 DWARF_NAMEFY(DW_AT_discr_list); 75 DWARF_NAMEFY(DW_AT_encoding); 76 DWARF_NAMEFY(DW_AT_external); 77 DWARF_NAMEFY(DW_AT_frame_base); 78 DWARF_NAMEFY(DW_AT_friend); 79 DWARF_NAMEFY(DW_AT_identifier_case); 80 DWARF_NAMEFY(DW_AT_macro_info); 81 DWARF_NAMEFY(DW_AT_namelist_item); 82 DWARF_NAMEFY(DW_AT_priority); 83 DWARF_NAMEFY(DW_AT_segment); 84 DWARF_NAMEFY(DW_AT_specification); 85 DWARF_NAMEFY(DW_AT_static_link); 86 DWARF_NAMEFY(DW_AT_type); 87 DWARF_NAMEFY(DW_AT_use_location); 88 DWARF_NAMEFY(DW_AT_variable_parameter); 89 DWARF_NAMEFY(DW_AT_virtuality); 90 DWARF_NAMEFY(DW_AT_vtable_elem_location); 91 DWARF_NAMEFY(DW_AT_allocated); 92 DWARF_NAMEFY(DW_AT_associated); 93 DWARF_NAMEFY(DW_AT_data_location); 94 DWARF_NAMEFY2(DW_AT_byte_stride, DW_AT_stride); 95 DWARF_NAMEFY(DW_AT_entry_pc); 96 DWARF_NAMEFY(DW_AT_use_UTF8); 97 DWARF_NAMEFY(DW_AT_extension); 98 DWARF_NAMEFY(DW_AT_ranges); 99 DWARF_NAMEFY(DW_AT_trampoline); 100 DWARF_NAMEFY(DW_AT_call_column); 101 DWARF_NAMEFY(DW_AT_call_file); 102 DWARF_NAMEFY(DW_AT_call_line); 103 DWARF_NAMEFY(DW_AT_description); 104 DWARF_NAMEFY(DW_AT_binary_scale); 105 DWARF_NAMEFY(DW_AT_decimal_scale); 106 DWARF_NAMEFY(DW_AT_small); 107 DWARF_NAMEFY(DW_AT_decimal_sign); 108 DWARF_NAMEFY(DW_AT_digit_count); 109 DWARF_NAMEFY(DW_AT_picture_string); 110 DWARF_NAMEFY(DW_AT_mutable); 111 DWARF_NAMEFY(DW_AT_threads_scaled); 112 DWARF_NAMEFY(DW_AT_explicit); 113 DWARF_NAMEFY(DW_AT_object_pointer); 114 DWARF_NAMEFY(DW_AT_endianity); 115 DWARF_NAMEFY(DW_AT_elemental); 116 DWARF_NAMEFY(DW_AT_pure); 117 DWARF_NAMEFY(DW_AT_recursive); 118 DWARF_NAMEFY(DW_AT_signature); 119 DWARF_NAMEFY(DW_AT_main_subprogram); 120 DWARF_NAMEFY(DW_AT_data_bit_offset); 121 DWARF_NAMEFY(DW_AT_const_expr); 122 DWARF_NAMEFY(DW_AT_enum_class); 123 DWARF_NAMEFY(DW_AT_linkage_name); 124 default: 125 return "DW_AT_Unknown"; 126 } 127 } 128 129 const char* 130 dwarf_form_name(Dwarf_Form form) { 131 switch (form) { 132 DWARF_NAMEFY(DW_FORM_addr); 133 DWARF_NAMEFY(DW_FORM_block2); 134 DWARF_NAMEFY(DW_FORM_block4); 135 DWARF_NAMEFY(DW_FORM_data2); 136 DWARF_NAMEFY(DW_FORM_data4); 137 DWARF_NAMEFY(DW_FORM_data8); 138 DWARF_NAMEFY(DW_FORM_string); 139 DWARF_NAMEFY(DW_FORM_block); 140 DWARF_NAMEFY(DW_FORM_block1); 141 DWARF_NAMEFY(DW_FORM_data1); 142 DWARF_NAMEFY(DW_FORM_flag); 143 DWARF_NAMEFY(DW_FORM_sdata); 144 DWARF_NAMEFY(DW_FORM_strp); 145 DWARF_NAMEFY(DW_FORM_udata); 146 DWARF_NAMEFY(DW_FORM_ref_addr); 147 DWARF_NAMEFY(DW_FORM_ref1); 148 DWARF_NAMEFY(DW_FORM_ref2); 149 DWARF_NAMEFY(DW_FORM_ref4); 150 DWARF_NAMEFY(DW_FORM_ref8); 151 DWARF_NAMEFY(DW_FORM_ref_udata); 152 DWARF_NAMEFY(DW_FORM_indirect); 153 DWARF_NAMEFY(DW_FORM_sec_offset); 154 DWARF_NAMEFY(DW_FORM_exprloc); 155 DWARF_NAMEFY(DW_FORM_flag_present); 156 DWARF_NAMEFY(DW_FORM_ref_sig8); 157 default: 158 return "DW_FORM_Unknown"; 159 } 160 } 161 162 const char* 163 dwarf_tag_name(Dwarf_Tag tag) { 164 switch (tag) { 165 DWARF_NAMEFY(DW_TAG_array_type); 166 DWARF_NAMEFY(DW_TAG_class_type); 167 DWARF_NAMEFY(DW_TAG_entry_point); 168 DWARF_NAMEFY(DW_TAG_enumeration_type); 169 DWARF_NAMEFY(DW_TAG_formal_parameter); 170 DWARF_NAMEFY(DW_TAG_imported_declaration); 171 DWARF_NAMEFY(DW_TAG_label); 172 DWARF_NAMEFY(DW_TAG_lexical_block); 173 DWARF_NAMEFY(DW_TAG_member); 174 DWARF_NAMEFY(DW_TAG_pointer_type); 175 DWARF_NAMEFY(DW_TAG_reference_type); 176 DWARF_NAMEFY(DW_TAG_compile_unit); 177 DWARF_NAMEFY(DW_TAG_string_type); 178 DWARF_NAMEFY(DW_TAG_structure_type); 179 DWARF_NAMEFY(DW_TAG_subroutine_type); 180 DWARF_NAMEFY(DW_TAG_typedef); 181 DWARF_NAMEFY(DW_TAG_union_type); 182 DWARF_NAMEFY(DW_TAG_unspecified_parameters); 183 DWARF_NAMEFY(DW_TAG_variant); 184 DWARF_NAMEFY(DW_TAG_common_block); 185 DWARF_NAMEFY(DW_TAG_common_inclusion); 186 DWARF_NAMEFY(DW_TAG_inheritance); 187 DWARF_NAMEFY(DW_TAG_inlined_subroutine); 188 DWARF_NAMEFY(DW_TAG_module); 189 DWARF_NAMEFY(DW_TAG_ptr_to_member_type); 190 DWARF_NAMEFY(DW_TAG_set_type); 191 DWARF_NAMEFY(DW_TAG_subrange_type); 192 DWARF_NAMEFY(DW_TAG_with_stmt); 193 DWARF_NAMEFY(DW_TAG_access_declaration); 194 DWARF_NAMEFY(DW_TAG_base_type); 195 DWARF_NAMEFY(DW_TAG_catch_block); 196 DWARF_NAMEFY(DW_TAG_const_type); 197 DWARF_NAMEFY(DW_TAG_constant); 198 DWARF_NAMEFY(DW_TAG_enumerator); 199 DWARF_NAMEFY(DW_TAG_file_type); 200 DWARF_NAMEFY(DW_TAG_friend); 201 DWARF_NAMEFY(DW_TAG_namelist); 202 DWARF_NAMEFY2(DW_TAG_namelist_item, DW_TAG_namelist_items); 203 DWARF_NAMEFY(DW_TAG_packed_type); 204 DWARF_NAMEFY(DW_TAG_subprogram); 205 DWARF_NAMEFY2(DW_TAG_template_type_parameter, DW_TAG_template_type_param); 206 DWARF_NAMEFY2(DW_TAG_template_value_parameter, 207 DW_TAG_template_value_param); 208 DWARF_NAMEFY(DW_TAG_thrown_type); 209 DWARF_NAMEFY(DW_TAG_try_block); 210 DWARF_NAMEFY(DW_TAG_variant_part); 211 DWARF_NAMEFY(DW_TAG_variable); 212 DWARF_NAMEFY(DW_TAG_volatile_type); 213 DWARF_NAMEFY(DW_TAG_dwarf_procedure); 214 DWARF_NAMEFY(DW_TAG_restrict_type); 215 DWARF_NAMEFY(DW_TAG_interface_type); 216 DWARF_NAMEFY(DW_TAG_namespace); 217 DWARF_NAMEFY(DW_TAG_imported_module); 218 DWARF_NAMEFY(DW_TAG_unspecified_type); 219 DWARF_NAMEFY(DW_TAG_partial_unit); 220 DWARF_NAMEFY(DW_TAG_imported_unit); 221 DWARF_NAMEFY(DW_TAG_mutable_type); 222 DWARF_NAMEFY(DW_TAG_condition); 223 DWARF_NAMEFY(DW_TAG_shared_type); 224 DWARF_NAMEFY(DW_TAG_type_unit); 225 DWARF_NAMEFY(DW_TAG_rvalue_reference_type); 226 DWARF_NAMEFY(DW_TAG_template_alias); 227 default: 228 return "DW_TAG_Unknown"; 229 } 230 } 231 232 void 233 dump_attrib(Dwarf_At at, Dwarf_Form form, const Dwarf_Value* val) { 234 if (form != 0) { 235 printf(" +++ Attribute: %s [%s]\n", 236 dwarf_at_name(at), dwarf_form_name(form)); 237 } else { 238 printf(" +++ Attribute: %s\n", dwarf_at_name(at)); 239 } 240 dump_value(val); 241 } 242 243 void 244 dump_value(const Dwarf_Value* attr_value) { 245 printf(" Data[%03u]: (", attr_value->encoded_size); 246 switch (attr_value->type) { 247 case DWARF_VALUE_U8: 248 printf("BYTE) = %u (x%02X)\n", (Elf_Word)attr_value->u8, 249 (Elf_Word)attr_value->u8); 250 break; 251 252 case DWARF_VALUE_S8: 253 printf("SBYTE) = %d (x%02X)\n", (Elf_Sword)attr_value->s8, 254 (Elf_Sword)attr_value->s8); 255 break; 256 257 case DWARF_VALUE_U16: 258 printf("WORD) = %u (x%04X)\n", (Elf_Word)attr_value->u16, 259 (Elf_Word)attr_value->u16); 260 break; 261 262 case DWARF_VALUE_S16: 263 printf("SWORD) = %d (x%04X)\n", (Elf_Sword)attr_value->s16, 264 (Elf_Sword)attr_value->s16); 265 break; 266 267 case DWARF_VALUE_U32: 268 printf("DWORD) = %u (x%08X)\n", attr_value->u32, 269 attr_value->u32); 270 break; 271 272 case DWARF_VALUE_S32: 273 printf("SDWORD) = %d (x%08X)\n", attr_value->s32, 274 attr_value->s32); 275 break; 276 277 case DWARF_VALUE_U64: 278 printf("XWORD) = %" FMT_I64 "u (x%" FMT_I64 "X)\n", attr_value->u64, 279 attr_value->u64); 280 break; 281 282 case DWARF_VALUE_S64: 283 printf("SXWORD) = %" FMT_I64 "d (x%" FMT_I64 "X)\n", attr_value->s64, 284 attr_value->s64); 285 break; 286 287 case DWARF_VALUE_STR: 288 printf("STRING) = %s\n", attr_value->str); 289 break; 290 291 case DWARF_VALUE_PTR32: 292 printf("PTR32) = x%08X\n", attr_value->ptr32); 293 break; 294 295 case DWARF_VALUE_PTR64: 296 printf("PTR64) = x%08" FMT_I64 "X\n", attr_value->ptr64); 297 break; 298 299 case DWARF_VALUE_BLOCK: 300 printf("BLOCK) = [%u]:", attr_value->block.block_size); 301 for (Elf_Xword i = 0; i < attr_value->block.block_size; i++) { 302 Elf_Byte prnt = *((const Elf_Byte*)attr_value->block.block_ptr + i); 303 printf(" x%02X", prnt); 304 } 305 printf("\n"); 306 break; 307 308 case DWARF_VALUE_UNKNOWN: 309 default: 310 printf("UNKNOWN)"); 311 break; 312 } 313 } 314
