dwarf2.h (15172B) - Raw
1 /* Declarations and definitions of codes relating to the DWARF2 symbolic 2 debugging information format. 3 Copyright (C) 1992-2025 Free Software Foundation, Inc. 4 5 This file is part of the GNU C Library. 6 7 The GNU C Library is free software; you can redistribute it and/or 8 modify it under the terms of the GNU Lesser General Public 9 License as published by the Free Software Foundation; either 10 version 2.1 of the License, or (at your option) any later version. 11 12 The GNU C Library is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 Lesser General Public License for more details. 16 17 You should have received a copy of the GNU Lesser General Public 18 License along with the GNU C Library; if not, see 19 <https://www.gnu.org/licenses/>. */ 20 21 #ifndef _DWARF2_H 22 #define _DWARF2_H 1 23 24 /* This file is derived from the DWARF specification (a public document) 25 Revision 2.0.0 (July 27, 1993) developed by the UNIX International 26 Programming Languages Special Interest Group (UI/PLSIG) and distributed 27 by UNIX International. Copies of this specification are available from 28 UNIX International, 20 Waterview Boulevard, Parsippany, NJ, 07054. */ 29 30 /* This file is shared between GCC and GDB, and should not contain 31 prototypes. */ 32 33 #ifndef __ASSEMBLER__ 34 /* Tag names and codes. */ 35 36 enum dwarf_tag 37 { 38 DW_TAG_padding = 0x00, 39 DW_TAG_array_type = 0x01, 40 DW_TAG_class_type = 0x02, 41 DW_TAG_entry_point = 0x03, 42 DW_TAG_enumeration_type = 0x04, 43 DW_TAG_formal_parameter = 0x05, 44 DW_TAG_imported_declaration = 0x08, 45 DW_TAG_label = 0x0a, 46 DW_TAG_lexical_block = 0x0b, 47 DW_TAG_member = 0x0d, 48 DW_TAG_pointer_type = 0x0f, 49 DW_TAG_reference_type = 0x10, 50 DW_TAG_compile_unit = 0x11, 51 DW_TAG_string_type = 0x12, 52 DW_TAG_structure_type = 0x13, 53 DW_TAG_subroutine_type = 0x15, 54 DW_TAG_typedef = 0x16, 55 DW_TAG_union_type = 0x17, 56 DW_TAG_unspecified_parameters = 0x18, 57 DW_TAG_variant = 0x19, 58 DW_TAG_common_block = 0x1a, 59 DW_TAG_common_inclusion = 0x1b, 60 DW_TAG_inheritance = 0x1c, 61 DW_TAG_inlined_subroutine = 0x1d, 62 DW_TAG_module = 0x1e, 63 DW_TAG_ptr_to_member_type = 0x1f, 64 DW_TAG_set_type = 0x20, 65 DW_TAG_subrange_type = 0x21, 66 DW_TAG_with_stmt = 0x22, 67 DW_TAG_access_declaration = 0x23, 68 DW_TAG_base_type = 0x24, 69 DW_TAG_catch_block = 0x25, 70 DW_TAG_const_type = 0x26, 71 DW_TAG_constant = 0x27, 72 DW_TAG_enumerator = 0x28, 73 DW_TAG_file_type = 0x29, 74 DW_TAG_friend = 0x2a, 75 DW_TAG_namelist = 0x2b, 76 DW_TAG_namelist_item = 0x2c, 77 DW_TAG_packed_type = 0x2d, 78 DW_TAG_subprogram = 0x2e, 79 DW_TAG_template_type_param = 0x2f, 80 DW_TAG_template_value_param = 0x30, 81 DW_TAG_thrown_type = 0x31, 82 DW_TAG_try_block = 0x32, 83 DW_TAG_variant_part = 0x33, 84 DW_TAG_variable = 0x34, 85 DW_TAG_volatile_type = 0x35, 86 /* SGI/MIPS Extensions */ 87 DW_TAG_MIPS_loop = 0x4081, 88 /* GNU extensions */ 89 DW_TAG_format_label = 0x4101, /* for FORTRAN 77 and Fortran 90 */ 90 DW_TAG_function_template = 0x4102, /* for C++ */ 91 DW_TAG_class_template = 0x4103, /* for C++ */ 92 DW_TAG_GNU_BINCL = 0x4104, 93 DW_TAG_GNU_EINCL = 0x4105 94 }; 95 96 #define DW_TAG_lo_user 0x4080 97 #define DW_TAG_hi_user 0xffff 98 99 /* flag that tells whether entry has a child or not */ 100 #define DW_children_no 0 101 #define DW_children_yes 1 102 103 /* Form names and codes. */ 104 enum dwarf_form 105 { 106 DW_FORM_addr = 0x01, 107 DW_FORM_block2 = 0x03, 108 DW_FORM_block4 = 0x04, 109 DW_FORM_data2 = 0x05, 110 DW_FORM_data4 = 0x06, 111 DW_FORM_data8 = 0x07, 112 DW_FORM_string = 0x08, 113 DW_FORM_block = 0x09, 114 DW_FORM_block1 = 0x0a, 115 DW_FORM_data1 = 0x0b, 116 DW_FORM_flag = 0x0c, 117 DW_FORM_sdata = 0x0d, 118 DW_FORM_strp = 0x0e, 119 DW_FORM_udata = 0x0f, 120 DW_FORM_ref_addr = 0x10, 121 DW_FORM_ref1 = 0x11, 122 DW_FORM_ref2 = 0x12, 123 DW_FORM_ref4 = 0x13, 124 DW_FORM_ref8 = 0x14, 125 DW_FORM_ref_udata = 0x15, 126 DW_FORM_indirect = 0x16 127 }; 128 129 /* Attribute names and codes. */ 130 131 enum dwarf_attribute 132 { 133 DW_AT_sibling = 0x01, 134 DW_AT_location = 0x02, 135 DW_AT_name = 0x03, 136 DW_AT_ordering = 0x09, 137 DW_AT_subscr_data = 0x0a, 138 DW_AT_byte_size = 0x0b, 139 DW_AT_bit_offset = 0x0c, 140 DW_AT_bit_size = 0x0d, 141 DW_AT_element_list = 0x0f, 142 DW_AT_stmt_list = 0x10, 143 DW_AT_low_pc = 0x11, 144 DW_AT_high_pc = 0x12, 145 DW_AT_language = 0x13, 146 DW_AT_member = 0x14, 147 DW_AT_discr = 0x15, 148 DW_AT_discr_value = 0x16, 149 DW_AT_visibility = 0x17, 150 DW_AT_import = 0x18, 151 DW_AT_string_length = 0x19, 152 DW_AT_common_reference = 0x1a, 153 DW_AT_comp_dir = 0x1b, 154 DW_AT_const_value = 0x1c, 155 DW_AT_containing_type = 0x1d, 156 DW_AT_default_value = 0x1e, 157 DW_AT_inline = 0x20, 158 DW_AT_is_optional = 0x21, 159 DW_AT_lower_bound = 0x22, 160 DW_AT_producer = 0x25, 161 DW_AT_prototyped = 0x27, 162 DW_AT_return_addr = 0x2a, 163 DW_AT_start_scope = 0x2c, 164 DW_AT_stride_size = 0x2e, 165 DW_AT_upper_bound = 0x2f, 166 DW_AT_abstract_origin = 0x31, 167 DW_AT_accessibility = 0x32, 168 DW_AT_address_class = 0x33, 169 DW_AT_artificial = 0x34, 170 DW_AT_base_types = 0x35, 171 DW_AT_calling_convention = 0x36, 172 DW_AT_count = 0x37, 173 DW_AT_data_member_location = 0x38, 174 DW_AT_decl_column = 0x39, 175 DW_AT_decl_file = 0x3a, 176 DW_AT_decl_line = 0x3b, 177 DW_AT_declaration = 0x3c, 178 DW_AT_discr_list = 0x3d, 179 DW_AT_encoding = 0x3e, 180 DW_AT_external = 0x3f, 181 DW_AT_frame_base = 0x40, 182 DW_AT_friend = 0x41, 183 DW_AT_identifier_case = 0x42, 184 DW_AT_macro_info = 0x43, 185 DW_AT_namelist_items = 0x44, 186 DW_AT_priority = 0x45, 187 DW_AT_segment = 0x46, 188 DW_AT_specification = 0x47, 189 DW_AT_static_link = 0x48, 190 DW_AT_type = 0x49, 191 DW_AT_use_location = 0x4a, 192 DW_AT_variable_parameter = 0x4b, 193 DW_AT_virtuality = 0x4c, 194 DW_AT_vtable_elem_location = 0x4d, 195 /* SGI/MIPS Extensions */ 196 DW_AT_MIPS_fde = 0x2001, 197 DW_AT_MIPS_loop_begin = 0x2002, 198 DW_AT_MIPS_tail_loop_begin = 0x2003, 199 DW_AT_MIPS_epilog_begin = 0x2004, 200 DW_AT_MIPS_loop_unroll_factor = 0x2005, 201 DW_AT_MIPS_software_pipeline_depth = 0x2006, 202 DW_AT_MIPS_linkage_name = 0x2007, 203 DW_AT_MIPS_stride = 0x2008, 204 DW_AT_MIPS_abstract_name = 0x2009, 205 DW_AT_MIPS_clone_origin = 0x200a, 206 DW_AT_MIPS_has_inlines = 0x200b, 207 /* GNU extensions. */ 208 DW_AT_sf_names = 0x2101, 209 DW_AT_src_info = 0x2102, 210 DW_AT_mac_info = 0x2103, 211 DW_AT_src_coords = 0x2104, 212 DW_AT_body_begin = 0x2105, 213 DW_AT_body_end = 0x2106 214 }; 215 216 #define DW_AT_lo_user 0x2000 /* implementation-defined range start */ 217 #define DW_AT_hi_user 0x3ff0 /* implementation-defined range end */ 218 219 /* Location atom names and codes. */ 220 221 enum dwarf_location_atom 222 { 223 DW_OP_addr = 0x03, 224 DW_OP_deref = 0x06, 225 DW_OP_const1u = 0x08, 226 DW_OP_const1s = 0x09, 227 DW_OP_const2u = 0x0a, 228 DW_OP_const2s = 0x0b, 229 DW_OP_const4u = 0x0c, 230 DW_OP_const4s = 0x0d, 231 DW_OP_const8u = 0x0e, 232 DW_OP_const8s = 0x0f, 233 DW_OP_constu = 0x10, 234 DW_OP_consts = 0x11, 235 DW_OP_dup = 0x12, 236 DW_OP_drop = 0x13, 237 DW_OP_over = 0x14, 238 DW_OP_pick = 0x15, 239 DW_OP_swap = 0x16, 240 DW_OP_rot = 0x17, 241 DW_OP_xderef = 0x18, 242 DW_OP_abs = 0x19, 243 DW_OP_and = 0x1a, 244 DW_OP_div = 0x1b, 245 DW_OP_minus = 0x1c, 246 DW_OP_mod = 0x1d, 247 DW_OP_mul = 0x1e, 248 DW_OP_neg = 0x1f, 249 DW_OP_not = 0x20, 250 DW_OP_or = 0x21, 251 DW_OP_plus = 0x22, 252 DW_OP_plus_uconst = 0x23, 253 DW_OP_shl = 0x24, 254 DW_OP_shr = 0x25, 255 DW_OP_shra = 0x26, 256 DW_OP_xor = 0x27, 257 DW_OP_bra = 0x28, 258 DW_OP_eq = 0x29, 259 DW_OP_ge = 0x2a, 260 DW_OP_gt = 0x2b, 261 DW_OP_le = 0x2c, 262 DW_OP_lt = 0x2d, 263 DW_OP_ne = 0x2e, 264 DW_OP_skip = 0x2f, 265 DW_OP_lit0 = 0x30, 266 DW_OP_lit1 = 0x31, 267 DW_OP_lit2 = 0x32, 268 DW_OP_lit3 = 0x33, 269 DW_OP_lit4 = 0x34, 270 DW_OP_lit5 = 0x35, 271 DW_OP_lit6 = 0x36, 272 DW_OP_lit7 = 0x37, 273 DW_OP_lit8 = 0x38, 274 DW_OP_lit9 = 0x39, 275 DW_OP_lit10 = 0x3a, 276 DW_OP_lit11 = 0x3b, 277 DW_OP_lit12 = 0x3c, 278 DW_OP_lit13 = 0x3d, 279 DW_OP_lit14 = 0x3e, 280 DW_OP_lit15 = 0x3f, 281 DW_OP_lit16 = 0x40, 282 DW_OP_lit17 = 0x41, 283 DW_OP_lit18 = 0x42, 284 DW_OP_lit19 = 0x43, 285 DW_OP_lit20 = 0x44, 286 DW_OP_lit21 = 0x45, 287 DW_OP_lit22 = 0x46, 288 DW_OP_lit23 = 0x47, 289 DW_OP_lit24 = 0x48, 290 DW_OP_lit25 = 0x49, 291 DW_OP_lit26 = 0x4a, 292 DW_OP_lit27 = 0x4b, 293 DW_OP_lit28 = 0x4c, 294 DW_OP_lit29 = 0x4d, 295 DW_OP_lit30 = 0x4e, 296 DW_OP_lit31 = 0x4f, 297 DW_OP_reg0 = 0x50, 298 DW_OP_reg1 = 0x51, 299 DW_OP_reg2 = 0x52, 300 DW_OP_reg3 = 0x53, 301 DW_OP_reg4 = 0x54, 302 DW_OP_reg5 = 0x55, 303 DW_OP_reg6 = 0x56, 304 DW_OP_reg7 = 0x57, 305 DW_OP_reg8 = 0x58, 306 DW_OP_reg9 = 0x59, 307 DW_OP_reg10 = 0x5a, 308 DW_OP_reg11 = 0x5b, 309 DW_OP_reg12 = 0x5c, 310 DW_OP_reg13 = 0x5d, 311 DW_OP_reg14 = 0x5e, 312 DW_OP_reg15 = 0x5f, 313 DW_OP_reg16 = 0x60, 314 DW_OP_reg17 = 0x61, 315 DW_OP_reg18 = 0x62, 316 DW_OP_reg19 = 0x63, 317 DW_OP_reg20 = 0x64, 318 DW_OP_reg21 = 0x65, 319 DW_OP_reg22 = 0x66, 320 DW_OP_reg23 = 0x67, 321 DW_OP_reg24 = 0x68, 322 DW_OP_reg25 = 0x69, 323 DW_OP_reg26 = 0x6a, 324 DW_OP_reg27 = 0x6b, 325 DW_OP_reg28 = 0x6c, 326 DW_OP_reg29 = 0x6d, 327 DW_OP_reg30 = 0x6e, 328 DW_OP_reg31 = 0x6f, 329 DW_OP_breg0 = 0x70, 330 DW_OP_breg1 = 0x71, 331 DW_OP_breg2 = 0x72, 332 DW_OP_breg3 = 0x73, 333 DW_OP_breg4 = 0x74, 334 DW_OP_breg5 = 0x75, 335 DW_OP_breg6 = 0x76, 336 DW_OP_breg7 = 0x77, 337 DW_OP_breg8 = 0x78, 338 DW_OP_breg9 = 0x79, 339 DW_OP_breg10 = 0x7a, 340 DW_OP_breg11 = 0x7b, 341 DW_OP_breg12 = 0x7c, 342 DW_OP_breg13 = 0x7d, 343 DW_OP_breg14 = 0x7e, 344 DW_OP_breg15 = 0x7f, 345 DW_OP_breg16 = 0x80, 346 DW_OP_breg17 = 0x81, 347 DW_OP_breg18 = 0x82, 348 DW_OP_breg19 = 0x83, 349 DW_OP_breg20 = 0x84, 350 DW_OP_breg21 = 0x85, 351 DW_OP_breg22 = 0x86, 352 DW_OP_breg23 = 0x87, 353 DW_OP_breg24 = 0x88, 354 DW_OP_breg25 = 0x89, 355 DW_OP_breg26 = 0x8a, 356 DW_OP_breg27 = 0x8b, 357 DW_OP_breg28 = 0x8c, 358 DW_OP_breg29 = 0x8d, 359 DW_OP_breg30 = 0x8e, 360 DW_OP_breg31 = 0x8f, 361 DW_OP_regx = 0x90, 362 DW_OP_fbreg = 0x91, 363 DW_OP_bregx = 0x92, 364 DW_OP_piece = 0x93, 365 DW_OP_deref_size = 0x94, 366 DW_OP_xderef_size = 0x95, 367 DW_OP_nop = 0x96 368 }; 369 370 #define DW_OP_lo_user 0x80 /* implementation-defined range start */ 371 #define DW_OP_hi_user 0xff /* implementation-defined range end */ 372 373 /* Type encodings. */ 374 375 enum dwarf_type 376 { 377 DW_ATE_void = 0x0, 378 DW_ATE_address = 0x1, 379 DW_ATE_boolean = 0x2, 380 DW_ATE_complex_float = 0x3, 381 DW_ATE_float = 0x4, 382 DW_ATE_signed = 0x5, 383 DW_ATE_signed_char = 0x6, 384 DW_ATE_unsigned = 0x7, 385 DW_ATE_unsigned_char = 0x8 386 }; 387 388 #define DW_ATE_lo_user 0x80 389 #define DW_ATE_hi_user 0xff 390 391 /* Array ordering names and codes. */ 392 enum dwarf_array_dim_ordering 393 { 394 DW_ORD_row_major = 0, 395 DW_ORD_col_major = 1 396 }; 397 398 /* access attribute */ 399 enum dwarf_access_attribute 400 { 401 DW_ACCESS_public = 1, 402 DW_ACCESS_protected = 2, 403 DW_ACCESS_private = 3 404 }; 405 406 /* visibility */ 407 enum dwarf_visibility_attribute 408 { 409 DW_VIS_local = 1, 410 DW_VIS_exported = 2, 411 DW_VIS_qualified = 3 412 }; 413 414 /* virtuality */ 415 enum dwarf_virtuality_attribute 416 { 417 DW_VIRTUALITY_none = 0, 418 DW_VIRTUALITY_virtual = 1, 419 DW_VIRTUALITY_pure_virtual = 2 420 }; 421 422 /* case sensitivity */ 423 enum dwarf_id_case 424 { 425 DW_ID_case_sensitive = 0, 426 DW_ID_up_case = 1, 427 DW_ID_down_case = 2, 428 DW_ID_case_insensitive = 3 429 }; 430 431 /* calling convention */ 432 enum dwarf_calling_convention 433 { 434 DW_CC_normal = 0x1, 435 DW_CC_program = 0x2, 436 DW_CC_nocall = 0x3 437 }; 438 439 #define DW_CC_lo_user 0x40 440 #define DW_CC_hi_user 0xff 441 442 /* inline attribute */ 443 enum dwarf_inline_attribute 444 { 445 DW_INL_not_inlined = 0, 446 DW_INL_inlined = 1, 447 DW_INL_declared_not_inlined = 2, 448 DW_INL_declared_inlined = 3 449 }; 450 451 /* discriminant lists */ 452 enum dwarf_discrim_list 453 { 454 DW_DSC_label = 0, 455 DW_DSC_range = 1 456 }; 457 458 /* line number opcodes */ 459 enum dwarf_line_number_ops 460 { 461 DW_LNS_extended_op = 0, 462 DW_LNS_copy = 1, 463 DW_LNS_advance_pc = 2, 464 DW_LNS_advance_line = 3, 465 DW_LNS_set_file = 4, 466 DW_LNS_set_column = 5, 467 DW_LNS_negate_stmt = 6, 468 DW_LNS_set_basic_block = 7, 469 DW_LNS_const_add_pc = 8, 470 DW_LNS_fixed_advance_pc = 9 471 }; 472 473 /* line number extended opcodes */ 474 enum dwarf_line_number_x_ops 475 { 476 DW_LNE_end_sequence = 1, 477 DW_LNE_set_address = 2, 478 DW_LNE_define_file = 3 479 }; 480 481 /* call frame information */ 482 enum dwarf_call_frame_info 483 { 484 DW_CFA_advance_loc = 0x40, 485 DW_CFA_offset = 0x80, 486 DW_CFA_restore = 0xc0, 487 DW_CFA_nop = 0x00, 488 DW_CFA_set_loc = 0x01, 489 DW_CFA_advance_loc1 = 0x02, 490 DW_CFA_advance_loc2 = 0x03, 491 DW_CFA_advance_loc4 = 0x04, 492 DW_CFA_offset_extended = 0x05, 493 DW_CFA_restore_extended = 0x06, 494 DW_CFA_undefined = 0x07, 495 DW_CFA_same_value = 0x08, 496 DW_CFA_register = 0x09, 497 DW_CFA_remember_state = 0x0a, 498 DW_CFA_restore_state = 0x0b, 499 DW_CFA_def_cfa = 0x0c, 500 DW_CFA_def_cfa_register = 0x0d, 501 DW_CFA_def_cfa_offset = 0x0e, 502 DW_CFA_def_cfa_expression = 0x0f, 503 DW_CFA_expression = 0x10, 504 /* Dwarf 2.1 */ 505 DW_CFA_offset_extended_sf = 0x11, 506 DW_CFA_def_cfa_sf = 0x12, 507 DW_CFA_def_cfa_offset_sf = 0x13, 508 509 /* SGI/MIPS specific */ 510 DW_CFA_MIPS_advance_loc8 = 0x1d, 511 512 /* GNU extensions */ 513 DW_CFA_GNU_window_save = 0x2d, 514 DW_CFA_GNU_args_size = 0x2e, 515 DW_CFA_GNU_negative_offset_extended = 0x2f 516 }; 517 518 #define DW_CIE_ID 0xffffffff 519 #define DW_CIE_VERSION 1 520 521 #define DW_CFA_extended 0 522 #define DW_CFA_low_user 0x1c 523 #define DW_CFA_high_user 0x3f 524 525 #define DW_CHILDREN_no 0x00 526 #define DW_CHILDREN_yes 0x01 527 528 #define DW_ADDR_none 0 529 530 /* Source language names and codes. */ 531 532 enum dwarf_source_language 533 { 534 DW_LANG_C89 = 0x0001, 535 DW_LANG_C = 0x0002, 536 DW_LANG_Ada83 = 0x0003, 537 DW_LANG_C_plus_plus = 0x0004, 538 DW_LANG_Cobol74 = 0x0005, 539 DW_LANG_Cobol85 = 0x0006, 540 DW_LANG_Fortran77 = 0x0007, 541 DW_LANG_Fortran90 = 0x0008, 542 DW_LANG_Pascal83 = 0x0009, 543 DW_LANG_Modula2 = 0x000a, 544 DW_LANG_Java = 0x000b, 545 DW_LANG_Mips_Assembler = 0x8001 546 }; 547 548 549 #define DW_LANG_lo_user 0x8000 /* implementation-defined range start */ 550 #define DW_LANG_hi_user 0xffff /* implementation-defined range start */ 551 552 /* Names and codes for macro information. */ 553 554 enum dwarf_macinfo_record_type 555 { 556 DW_MACINFO_define = 1, 557 DW_MACINFO_undef = 2, 558 DW_MACINFO_start_file = 3, 559 DW_MACINFO_end_file = 4, 560 DW_MACINFO_vendor_ext = 255 561 }; 562 563 #endif /* !ASSEMBLER */ 564 565 /* @@@ For use with GNU frame unwind information. */ 566 567 #define DW_EH_PE_absptr 0x00 568 #define DW_EH_PE_omit 0xff 569 570 #define DW_EH_PE_uleb128 0x01 571 #define DW_EH_PE_udata2 0x02 572 #define DW_EH_PE_udata4 0x03 573 #define DW_EH_PE_udata8 0x04 574 #define DW_EH_PE_sleb128 0x09 575 #define DW_EH_PE_sdata2 0x0A 576 #define DW_EH_PE_sdata4 0x0B 577 #define DW_EH_PE_sdata8 0x0C 578 #define DW_EH_PE_signed 0x08 579 580 #define DW_EH_PE_pcrel 0x10 581 #define DW_EH_PE_textrel 0x20 582 #define DW_EH_PE_datarel 0x30 583 #define DW_EH_PE_funcrel 0x40 584 #define DW_EH_PE_aligned 0x50 585 586 #define DW_EH_PE_indirect 0x80 587 588 #endif /* dwarf2.h */