1 /* Declarations and definitions of codes relating to the DWARF2 and 2 DWARF3 symbolic debugging information formats. 3 Copyright (C) 1992-2021 Free Software Foundation, Inc. 4 5 Written by Gary Funck (gary@intrepid.com) The Ada Joint Program 6 Office (AJPO), Florida State University and Silicon Graphics Inc. 7 provided support for this effort -- June 21, 1995. 8 9 Derived from the DWARF 1 implementation written by Ron Guilmette 10 (rfg@netcom.com), November 1990. 11 12 This file is part of GCC. 13 14 GCC is free software; you can redistribute it and/or modify it under 15 the terms of the GNU General Public License as published by the Free 16 Software Foundation; either version 3, or (at your option) any later 17 version. 18 19 GCC is distributed in the hope that it will be useful, but WITHOUT 20 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 21 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 22 License for more details. 23 24 Under Section 7 of GPL version 3, you are granted additional 25 permissions described in the GCC Runtime Library Exception, version 26 3.1, as published by the Free Software Foundation. 27 28 You should have received a copy of the GNU General Public License and 29 a copy of the GCC Runtime Library Exception along with this program; 30 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 31 <http://www.gnu.org/licenses/>. */ 32 33 /* This file is derived from the DWARF specification (a public document) 34 Revision 2.0.0 (July 27, 1993) developed by the UNIX International 35 Programming Languages Special Interest Group (UI/PLSIG) and distributed 36 by UNIX International. Copies of this specification are available from 37 UNIX International, 20 Waterview Boulevard, Parsippany, NJ, 07054. 38 39 This file also now contains definitions from the DWARF 3 specification 40 published Dec 20, 2005, available from: http://dwarf.freestandards.org. */ 41 42 #ifndef _DWARF2_H 43 #define _DWARF2_H 44 45 #define DW_TAG(name, value) , name = value 46 #define DW_TAG_DUP(name, value) , name = value 47 #define DW_FORM(name, value) , name = value 48 #define DW_AT(name, value) , name = value 49 #define DW_AT_DUP(name, value) , name = value 50 #define DW_OP(name, value) , name = value 51 #define DW_OP_DUP(name, value) , name = value 52 #define DW_ATE(name, value) , name = value 53 #define DW_ATE_DUP(name, value) , name = value 54 #define DW_CFA(name, value) , name = value 55 #define DW_CFA_DUP(name, value) , name = value 56 #define DW_IDX(name, value) , name = value 57 #define DW_IDX_DUP(name, value) , name = value 58 #define DW_UT(name, value) , name = value 59 60 #define DW_FIRST_TAG(name, value) enum dwarf_tag { \ 61 name = value 62 #define DW_END_TAG }; 63 #define DW_FIRST_FORM(name, value) enum dwarf_form { \ 64 name = value 65 #define DW_END_FORM }; 66 #define DW_FIRST_AT(name, value) enum dwarf_attribute { \ 67 name = value 68 #define DW_END_AT }; 69 #define DW_FIRST_OP(name, value) enum dwarf_location_atom { \ 70 name = value 71 #define DW_END_OP }; 72 #define DW_FIRST_ATE(name, value) enum dwarf_type { \ 73 name = value 74 #define DW_END_ATE }; 75 #define DW_FIRST_CFA(name, value) enum dwarf_call_frame_info { \ 76 name = value 77 #define DW_END_CFA }; 78 #define DW_FIRST_IDX(name, value) enum dwarf_name_index_attribute { \ 79 name = value 80 #define DW_END_IDX }; 81 #define DW_FIRST_UT(name, value) enum dwarf_unit_type { \ 82 name = value 83 #define DW_END_UT }; 84 85 #include "dwarf2.def" 86 87 #undef DW_FIRST_TAG 88 #undef DW_END_TAG 89 #undef DW_FIRST_FORM 90 #undef DW_END_FORM 91 #undef DW_FIRST_AT 92 #undef DW_END_AT 93 #undef DW_FIRST_OP 94 #undef DW_END_OP 95 #undef DW_FIRST_ATE 96 #undef DW_END_ATE 97 #undef DW_FIRST_CFA 98 #undef DW_END_CFA 99 #undef DW_FIRST_IDX 100 #undef DW_END_IDX 101 #undef DW_FIRST_UT 102 #undef DW_END_UT 103 104 #undef DW_TAG 105 #undef DW_TAG_DUP 106 #undef DW_FORM 107 #undef DW_AT 108 #undef DW_AT_DUP 109 #undef DW_OP 110 #undef DW_OP_DUP 111 #undef DW_ATE 112 #undef DW_ATE_DUP 113 #undef DW_CFA 114 #undef DW_CFA_DUP 115 #undef DW_IDX 116 #undef DW_IDX_DUP 117 #undef DW_UT 118 119 /* Flag that tells whether entry has a child or not. */ 120 #define DW_children_no 0 121 #define DW_children_yes 1 122 123 #define DW_AT_stride_size DW_AT_bit_stride /* Note: The use of DW_AT_stride_size is deprecated. */ 124 #define DW_AT_stride DW_AT_byte_stride /* Note: The use of DW_AT_stride is deprecated. */ 125 126 /* Decimal sign encodings. */ 127 enum dwarf_decimal_sign_encoding 128 { 129 /* DWARF 3. */ 130 DW_DS_unsigned = 0x01, 131 DW_DS_leading_overpunch = 0x02, 132 DW_DS_trailing_overpunch = 0x03, 133 DW_DS_leading_separate = 0x04, 134 DW_DS_trailing_separate = 0x05 135 }; 136 137 /* Endianity encodings. */ 138 enum dwarf_endianity_encoding 139 { 140 /* DWARF 3. */ 141 DW_END_default = 0x00, 142 DW_END_big = 0x01, 143 DW_END_little = 0x02, 144 145 DW_END_lo_user = 0x40, 146 DW_END_hi_user = 0xff 147 }; 148 149 /* Array ordering names and codes. */ 150 enum dwarf_array_dim_ordering 151 { 152 DW_ORD_row_major = 0, 153 DW_ORD_col_major = 1 154 }; 155 156 /* Access attribute. */ 157 enum dwarf_access_attribute 158 { 159 DW_ACCESS_public = 1, 160 DW_ACCESS_protected = 2, 161 DW_ACCESS_private = 3 162 }; 163 164 /* Visibility. */ 165 enum dwarf_visibility_attribute 166 { 167 DW_VIS_local = 1, 168 DW_VIS_exported = 2, 169 DW_VIS_qualified = 3 170 }; 171 172 /* Virtuality. */ 173 enum dwarf_virtuality_attribute 174 { 175 DW_VIRTUALITY_none = 0, 176 DW_VIRTUALITY_virtual = 1, 177 DW_VIRTUALITY_pure_virtual = 2 178 }; 179 180 /* Case sensitivity. */ 181 enum dwarf_id_case 182 { 183 DW_ID_case_sensitive = 0, 184 DW_ID_up_case = 1, 185 DW_ID_down_case = 2, 186 DW_ID_case_insensitive = 3 187 }; 188 189 /* Calling convention. */ 190 enum dwarf_calling_convention 191 { 192 DW_CC_normal = 0x1, 193 DW_CC_program = 0x2, 194 DW_CC_nocall = 0x3, 195 196 /* DWARF 5. */ 197 DW_CC_pass_by_reference = 0x4, 198 DW_CC_pass_by_value = 0x5, 199 200 DW_CC_lo_user = 0x40, 201 DW_CC_hi_user = 0xff, 202 203 DW_CC_GNU_renesas_sh = 0x40, 204 DW_CC_GNU_borland_fastcall_i386 = 0x41, 205 206 /* This DW_CC_ value is not currently generated by any toolchain. It is 207 used internally to GDB to indicate OpenCL C functions that have been 208 compiled with the IBM XL C for OpenCL compiler and use a non-platform 209 calling convention for passing OpenCL C vector types. This value may 210 be changed freely as long as it does not conflict with any other DW_CC_ 211 value defined here. */ 212 DW_CC_GDB_IBM_OpenCL = 0xff 213 }; 214 215 /* Inline attribute. */ 216 enum dwarf_inline_attribute 217 { 218 DW_INL_not_inlined = 0, 219 DW_INL_inlined = 1, 220 DW_INL_declared_not_inlined = 2, 221 DW_INL_declared_inlined = 3 222 }; 223 224 /* Discriminant lists. */ 225 enum dwarf_discrim_list 226 { 227 DW_DSC_label = 0, 228 DW_DSC_range = 1 229 }; 230 231 /* Line number opcodes. */ 232 enum dwarf_line_number_ops 233 { 234 DW_LNS_extended_op = 0, 235 DW_LNS_copy = 1, 236 DW_LNS_advance_pc = 2, 237 DW_LNS_advance_line = 3, 238 DW_LNS_set_file = 4, 239 DW_LNS_set_column = 5, 240 DW_LNS_negate_stmt = 6, 241 DW_LNS_set_basic_block = 7, 242 DW_LNS_const_add_pc = 8, 243 DW_LNS_fixed_advance_pc = 9, 244 /* DWARF 3. */ 245 DW_LNS_set_prologue_end = 10, 246 DW_LNS_set_epilogue_begin = 11, 247 DW_LNS_set_isa = 12 248 }; 249 250 /* Line number extended opcodes. */ 251 enum dwarf_line_number_x_ops 252 { 253 DW_LNE_end_sequence = 1, 254 DW_LNE_set_address = 2, 255 DW_LNE_define_file = 3, 256 DW_LNE_set_discriminator = 4, 257 /* HP extensions. */ 258 DW_LNE_HP_negate_is_UV_update = 0x11, 259 DW_LNE_HP_push_context = 0x12, 260 DW_LNE_HP_pop_context = 0x13, 261 DW_LNE_HP_set_file_line_column = 0x14, 262 DW_LNE_HP_set_routine_name = 0x15, 263 DW_LNE_HP_set_sequence = 0x16, 264 DW_LNE_HP_negate_post_semantics = 0x17, 265 DW_LNE_HP_negate_function_exit = 0x18, 266 DW_LNE_HP_negate_front_end_logical = 0x19, 267 DW_LNE_HP_define_proc = 0x20, 268 DW_LNE_HP_source_file_correlation = 0x80, 269 270 DW_LNE_lo_user = 0x80, 271 DW_LNE_hi_user = 0xff 272 }; 273 274 /* Sub-opcodes for DW_LNE_HP_source_file_correlation. */ 275 enum dwarf_line_number_hp_sfc_ops 276 { 277 DW_LNE_HP_SFC_formfeed = 1, 278 DW_LNE_HP_SFC_set_listing_line = 2, 279 DW_LNE_HP_SFC_associate = 3 280 }; 281 282 /* Content type codes in line table directory_entry_format 283 and file_name_entry_format sequences. */ 284 enum dwarf_line_number_content_type 285 { 286 DW_LNCT_path = 0x1, 287 DW_LNCT_directory_index = 0x2, 288 DW_LNCT_timestamp = 0x3, 289 DW_LNCT_size = 0x4, 290 DW_LNCT_MD5 = 0x5, 291 DW_LNCT_lo_user = 0x2000, 292 DW_LNCT_hi_user = 0x3fff 293 }; 294 295 /* Type codes for location list entries. */ 296 enum dwarf_location_list_entry_type 297 { 298 DW_LLE_end_of_list = 0x00, 299 DW_LLE_base_addressx = 0x01, 300 DW_LLE_startx_endx = 0x02, 301 DW_LLE_startx_length = 0x03, 302 DW_LLE_offset_pair = 0x04, 303 DW_LLE_default_location = 0x05, 304 DW_LLE_base_address = 0x06, 305 DW_LLE_start_end = 0x07, 306 DW_LLE_start_length = 0x08, 307 308 /* <http://lists.dwarfstd.org/private.cgi/dwarf-discuss-dwarfstd.org/2017-April/004347.html> 309 has the proposal for now; only available to list members. 310 311 A (possibly updated) copy of the proposal is available at 312 <http://people.redhat.com/aoliva/papers/sfn/dwarf6-sfn-lvu.txt>. */ 313 DW_LLE_GNU_view_pair = 0x09, 314 #define DW_LLE_view_pair DW_LLE_GNU_view_pair 315 316 /* Former extension for Fission. 317 See http://gcc.gnu.org/wiki/DebugFission. */ 318 DW_LLE_GNU_end_of_list_entry = 0x00, 319 DW_LLE_GNU_base_address_selection_entry = 0x01, 320 DW_LLE_GNU_start_end_entry = 0x02, 321 DW_LLE_GNU_start_length_entry = 0x03 322 }; 323 324 #define DW_CIE_ID 0xffffffff 325 #define DW64_CIE_ID 0xffffffffffffffffULL 326 327 #define DW_CFA_extended 0 328 329 #define DW_CHILDREN_no 0x00 330 #define DW_CHILDREN_yes 0x01 331 332 #define DW_ADDR_none 0 333 334 /* Source language names and codes. */ 335 enum dwarf_source_language 336 { 337 DW_LANG_C89 = 0x0001, 338 DW_LANG_C = 0x0002, 339 DW_LANG_Ada83 = 0x0003, 340 DW_LANG_C_plus_plus = 0x0004, 341 DW_LANG_Cobol74 = 0x0005, 342 DW_LANG_Cobol85 = 0x0006, 343 DW_LANG_Fortran77 = 0x0007, 344 DW_LANG_Fortran90 = 0x0008, 345 DW_LANG_Pascal83 = 0x0009, 346 DW_LANG_Modula2 = 0x000a, 347 /* DWARF 3. */ 348 DW_LANG_Java = 0x000b, 349 DW_LANG_C99 = 0x000c, 350 DW_LANG_Ada95 = 0x000d, 351 DW_LANG_Fortran95 = 0x000e, 352 DW_LANG_PLI = 0x000f, 353 DW_LANG_ObjC = 0x0010, 354 DW_LANG_ObjC_plus_plus = 0x0011, 355 DW_LANG_UPC = 0x0012, 356 DW_LANG_D = 0x0013, 357 /* DWARF 4. */ 358 DW_LANG_Python = 0x0014, 359 /* DWARF 5. */ 360 DW_LANG_OpenCL = 0x0015, 361 DW_LANG_Go = 0x0016, 362 DW_LANG_Modula3 = 0x0017, 363 DW_LANG_Haskell = 0x0018, 364 DW_LANG_C_plus_plus_03 = 0x0019, 365 DW_LANG_C_plus_plus_11 = 0x001a, 366 DW_LANG_OCaml = 0x001b, 367 DW_LANG_Rust = 0x001c, 368 DW_LANG_C11 = 0x001d, 369 DW_LANG_Swift = 0x001e, 370 DW_LANG_Julia = 0x001f, 371 DW_LANG_Dylan = 0x0020, 372 DW_LANG_C_plus_plus_14 = 0x0021, 373 DW_LANG_Fortran03 = 0x0022, 374 DW_LANG_Fortran08 = 0x0023, 375 DW_LANG_RenderScript = 0x0024, 376 377 DW_LANG_lo_user = 0x8000, /* Implementation-defined range start. */ 378 DW_LANG_hi_user = 0xffff, /* Implementation-defined range start. */ 379 380 /* MIPS. */ 381 DW_LANG_Mips_Assembler = 0x8001, 382 /* UPC. */ 383 DW_LANG_Upc = 0x8765, 384 /* HP extensions. */ 385 DW_LANG_HP_Bliss = 0x8003, 386 DW_LANG_HP_Basic91 = 0x8004, 387 DW_LANG_HP_Pascal91 = 0x8005, 388 DW_LANG_HP_IMacro = 0x8006, 389 DW_LANG_HP_Assembler = 0x8007, 390 391 /* Rust extension, but replaced in DWARF 5. */ 392 DW_LANG_Rust_old = 0x9000 393 }; 394 395 /* Names and codes for macro information. */ 396 enum dwarf_macinfo_record_type 397 { 398 DW_MACINFO_define = 1, 399 DW_MACINFO_undef = 2, 400 DW_MACINFO_start_file = 3, 401 DW_MACINFO_end_file = 4, 402 DW_MACINFO_vendor_ext = 255 403 }; 404 405 /* DW_TAG_defaulted/DW_TAG_GNU_defaulted attributes. */ 406 enum dwarf_defaulted_attribute 407 { 408 DW_DEFAULTED_no = 0x00, 409 DW_DEFAULTED_in_class = 0x01, 410 DW_DEFAULTED_out_of_class = 0x02 411 }; 412 413 /* Names and codes for new style macro information. */ 414 enum dwarf_macro_record_type 415 { 416 DW_MACRO_define = 0x01, 417 DW_MACRO_undef = 0x02, 418 DW_MACRO_start_file = 0x03, 419 DW_MACRO_end_file = 0x04, 420 DW_MACRO_define_strp = 0x05, 421 DW_MACRO_undef_strp = 0x06, 422 DW_MACRO_import = 0x07, 423 DW_MACRO_define_sup = 0x08, 424 DW_MACRO_undef_sup = 0x09, 425 DW_MACRO_import_sup = 0x0a, 426 DW_MACRO_define_strx = 0x0b, 427 DW_MACRO_undef_strx = 0x0c, 428 DW_MACRO_lo_user = 0xe0, 429 DW_MACRO_hi_user = 0xff, 430 431 /* Compatibility macros for the GNU .debug_macro extension. */ 432 DW_MACRO_GNU_define = 0x01, 433 DW_MACRO_GNU_undef = 0x02, 434 DW_MACRO_GNU_start_file = 0x03, 435 DW_MACRO_GNU_end_file = 0x04, 436 DW_MACRO_GNU_define_indirect = 0x05, 437 DW_MACRO_GNU_undef_indirect = 0x06, 438 DW_MACRO_GNU_transparent_include = 0x07, 439 /* Extensions for DWZ multifile. 440 See http://www.dwarfstd.org/ShowIssue.php?issue=120604.1&type=open . */ 441 DW_MACRO_GNU_define_indirect_alt = 0x08, 442 DW_MACRO_GNU_undef_indirect_alt = 0x09, 443 DW_MACRO_GNU_transparent_include_alt = 0x0a, 444 DW_MACRO_GNU_lo_user = 0xe0, 445 DW_MACRO_GNU_hi_user = 0xff 446 }; 447 448 /* Range list entry kinds in .debug_rnglists* section. */ 449 enum dwarf_range_list_entry 450 { 451 DW_RLE_end_of_list = 0x00, 452 DW_RLE_base_addressx = 0x01, 453 DW_RLE_startx_endx = 0x02, 454 DW_RLE_startx_length = 0x03, 455 DW_RLE_offset_pair = 0x04, 456 DW_RLE_base_address = 0x05, 457 DW_RLE_start_end = 0x06, 458 DW_RLE_start_length = 0x07 459 }; 460 461 /* @@@ For use with GNU frame unwind information. */ 462 463 #define DW_EH_PE_absptr 0x00 464 #define DW_EH_PE_omit 0xff 465 466 #define DW_EH_PE_uleb128 0x01 467 #define DW_EH_PE_udata2 0x02 468 #define DW_EH_PE_udata4 0x03 469 #define DW_EH_PE_udata8 0x04 470 #define DW_EH_PE_sleb128 0x09 471 #define DW_EH_PE_sdata2 0x0A 472 #define DW_EH_PE_sdata4 0x0B 473 #define DW_EH_PE_sdata8 0x0C 474 #define DW_EH_PE_signed 0x08 475 476 #define DW_EH_PE_pcrel 0x10 477 #define DW_EH_PE_textrel 0x20 478 #define DW_EH_PE_datarel 0x30 479 #define DW_EH_PE_funcrel 0x40 480 #define DW_EH_PE_aligned 0x50 481 482 #define DW_EH_PE_indirect 0x80 483 484 /* Codes for the debug sections in a dwarf package (.dwp) file. 485 (From the pre-standard formats Extensions for Fission. 486 See http://gcc.gnu.org/wiki/DebugFissionDWP). */ 487 enum dwarf_sect 488 { 489 DW_SECT_INFO = 1, 490 DW_SECT_TYPES = 2, 491 DW_SECT_ABBREV = 3, 492 DW_SECT_LINE = 4, 493 DW_SECT_LOC = 5, 494 DW_SECT_STR_OFFSETS = 6, 495 DW_SECT_MACINFO = 7, 496 DW_SECT_MACRO = 8, 497 DW_SECT_MAX = 8 498 }; 499 500 /* Codes for the debug sections in a dwarf package (.dwp) file. 501 (From the official DWARF v5 spec. 502 See http://dwarfstd.org/doc/DWARF5.pdf, section 7.3.5). */ 503 enum dwarf_sect_v5 504 { 505 DW_SECT_INFO_V5 = 1, 506 DW_SECT_RESERVED_V5 = 2, 507 DW_SECT_ABBREV_V5 = 3, 508 DW_SECT_LINE_V5 = 4, 509 DW_SECT_LOCLISTS_V5 = 5, 510 DW_SECT_STR_OFFSETS_V5 = 6, 511 DW_SECT_MACRO_V5 = 7, 512 DW_SECT_RNGLISTS_V5 = 8, 513 DW_SECT_MAX_V5 = 8 514 }; 515 516 #ifdef __cplusplus 517 extern "C" { 518 #endif /* __cplusplus */ 519 520 /* Return the name of a DW_TAG_ constant, or NULL if the value is not 521 recognized. */ 522 extern const char *get_DW_TAG_name (unsigned int tag); 523 524 /* Return the name of a DW_AT_ constant, or NULL if the value is not 525 recognized. */ 526 extern const char *get_DW_AT_name (unsigned int attr); 527 528 /* Return the name of a DW_FORM_ constant, or NULL if the value is not 529 recognized. */ 530 extern const char *get_DW_FORM_name (unsigned int form); 531 532 /* Return the name of a DW_OP_ constant, or NULL if the value is not 533 recognized. */ 534 extern const char *get_DW_OP_name (unsigned int op); 535 536 /* Return the name of a DW_ATE_ constant, or NULL if the value is not 537 recognized. */ 538 extern const char *get_DW_ATE_name (unsigned int enc); 539 540 /* Return the name of a DW_CFA_ constant, or NULL if the value is not 541 recognized. */ 542 extern const char *get_DW_CFA_name (unsigned int opc); 543 544 /* Return the name of a DW_IDX_ constant, or NULL if the value is not 545 recognized. */ 546 extern const char *get_DW_IDX_name (unsigned int idx); 547 548 /* Return the name of a DW_UT_ constant, or NULL if the value is not 549 recognized. */ 550 extern const char *get_DW_UT_name (unsigned int ut); 551 552 #ifdef __cplusplus 553 } 554 #endif /* __cplusplus */ 555 556 #endif /* _DWARF2_H */ 557