1/* Declarations and definitions of codes relating to the DWARF2 and 2 DWARF3 symbolic debugging information formats. 3 Copyright (C) 1992-2020 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 59#define DW_FIRST_TAG(name, value) enum dwarf_tag { \ 60 name = value 61#define DW_END_TAG }; 62#define DW_FIRST_FORM(name, value) enum dwarf_form { \ 63 name = value 64#define DW_END_FORM }; 65#define DW_FIRST_AT(name, value) enum dwarf_attribute { \ 66 name = value 67#define DW_END_AT }; 68#define DW_FIRST_OP(name, value) enum dwarf_location_atom { \ 69 name = value 70#define DW_END_OP }; 71#define DW_FIRST_ATE(name, value) enum dwarf_type { \ 72 name = value 73#define DW_END_ATE }; 74#define DW_FIRST_CFA(name, value) enum dwarf_call_frame_info { \ 75 name = value 76#define DW_END_CFA }; 77#define DW_FIRST_IDX(name, value) enum dwarf_name_index_attribute { \ 78 name = value 79#define DW_END_IDX }; 80 81#include "dwarf2.def" 82 83#undef DW_FIRST_TAG 84#undef DW_END_TAG 85#undef DW_FIRST_FORM 86#undef DW_END_FORM 87#undef DW_FIRST_AT 88#undef DW_END_AT 89#undef DW_FIRST_OP 90#undef DW_END_OP 91#undef DW_FIRST_ATE 92#undef DW_END_ATE 93#undef DW_FIRST_CFA 94#undef DW_END_CFA 95#undef DW_FIRST_IDX 96#undef DW_END_IDX 97 98#undef DW_TAG 99#undef DW_TAG_DUP 100#undef DW_FORM 101#undef DW_AT 102#undef DW_AT_DUP 103#undef DW_OP 104#undef DW_OP_DUP 105#undef DW_ATE 106#undef DW_ATE_DUP 107#undef DW_CFA 108#undef DW_CFA_DUP 109#undef DW_IDX 110#undef DW_IDX_DUP 111 112/* Flag that tells whether entry has a child or not. */ 113#define DW_children_no 0 114#define DW_children_yes 1 115 116#define DW_AT_stride_size DW_AT_bit_stride /* Note: The use of DW_AT_stride_size is deprecated. */ 117#define DW_AT_stride DW_AT_byte_stride /* Note: The use of DW_AT_stride is deprecated. */ 118 119/* Decimal sign encodings. */ 120enum dwarf_decimal_sign_encoding 121 { 122 /* DWARF 3. */ 123 DW_DS_unsigned = 0x01, 124 DW_DS_leading_overpunch = 0x02, 125 DW_DS_trailing_overpunch = 0x03, 126 DW_DS_leading_separate = 0x04, 127 DW_DS_trailing_separate = 0x05 128 }; 129 130/* Endianity encodings. */ 131enum dwarf_endianity_encoding 132 { 133 /* DWARF 3. */ 134 DW_END_default = 0x00, 135 DW_END_big = 0x01, 136 DW_END_little = 0x02, 137 138 DW_END_lo_user = 0x40, 139 DW_END_hi_user = 0xff 140 }; 141 142/* Array ordering names and codes. */ 143enum dwarf_array_dim_ordering 144 { 145 DW_ORD_row_major = 0, 146 DW_ORD_col_major = 1 147 }; 148 149/* Access attribute. */ 150enum dwarf_access_attribute 151 { 152 DW_ACCESS_public = 1, 153 DW_ACCESS_protected = 2, 154 DW_ACCESS_private = 3 155 }; 156 157/* Visibility. */ 158enum dwarf_visibility_attribute 159 { 160 DW_VIS_local = 1, 161 DW_VIS_exported = 2, 162 DW_VIS_qualified = 3 163 }; 164 165/* Virtuality. */ 166enum dwarf_virtuality_attribute 167 { 168 DW_VIRTUALITY_none = 0, 169 DW_VIRTUALITY_virtual = 1, 170 DW_VIRTUALITY_pure_virtual = 2 171 }; 172 173/* Case sensitivity. */ 174enum dwarf_id_case 175 { 176 DW_ID_case_sensitive = 0, 177 DW_ID_up_case = 1, 178 DW_ID_down_case = 2, 179 DW_ID_case_insensitive = 3 180 }; 181 182/* Calling convention. */ 183enum dwarf_calling_convention 184 { 185 DW_CC_normal = 0x1, 186 DW_CC_program = 0x2, 187 DW_CC_nocall = 0x3, 188 189 /* DWARF 5. */ 190 DW_CC_pass_by_reference = 0x4, 191 DW_CC_pass_by_value = 0x5, 192 193 DW_CC_lo_user = 0x40, 194 DW_CC_hi_user = 0xff, 195 196 DW_CC_GNU_renesas_sh = 0x40, 197 DW_CC_GNU_borland_fastcall_i386 = 0x41, 198 199 /* This DW_CC_ value is not currently generated by any toolchain. It is 200 used internally to GDB to indicate OpenCL C functions that have been 201 compiled with the IBM XL C for OpenCL compiler and use a non-platform 202 calling convention for passing OpenCL C vector types. This value may 203 be changed freely as long as it does not conflict with any other DW_CC_ 204 value defined here. */ 205 DW_CC_GDB_IBM_OpenCL = 0xff 206 }; 207 208/* Inline attribute. */ 209enum dwarf_inline_attribute 210 { 211 DW_INL_not_inlined = 0, 212 DW_INL_inlined = 1, 213 DW_INL_declared_not_inlined = 2, 214 DW_INL_declared_inlined = 3 215 }; 216 217/* Discriminant lists. */ 218enum dwarf_discrim_list 219 { 220 DW_DSC_label = 0, 221 DW_DSC_range = 1 222 }; 223 224/* Line number opcodes. */ 225enum dwarf_line_number_ops 226 { 227 DW_LNS_extended_op = 0, 228 DW_LNS_copy = 1, 229 DW_LNS_advance_pc = 2, 230 DW_LNS_advance_line = 3, 231 DW_LNS_set_file = 4, 232 DW_LNS_set_column = 5, 233 DW_LNS_negate_stmt = 6, 234 DW_LNS_set_basic_block = 7, 235 DW_LNS_const_add_pc = 8, 236 DW_LNS_fixed_advance_pc = 9, 237 /* DWARF 3. */ 238 DW_LNS_set_prologue_end = 10, 239 DW_LNS_set_epilogue_begin = 11, 240 DW_LNS_set_isa = 12 241 }; 242 243/* Line number extended opcodes. */ 244enum dwarf_line_number_x_ops 245 { 246 DW_LNE_end_sequence = 1, 247 DW_LNE_set_address = 2, 248 DW_LNE_define_file = 3, 249 DW_LNE_set_discriminator = 4, 250 /* HP extensions. */ 251 DW_LNE_HP_negate_is_UV_update = 0x11, 252 DW_LNE_HP_push_context = 0x12, 253 DW_LNE_HP_pop_context = 0x13, 254 DW_LNE_HP_set_file_line_column = 0x14, 255 DW_LNE_HP_set_routine_name = 0x15, 256 DW_LNE_HP_set_sequence = 0x16, 257 DW_LNE_HP_negate_post_semantics = 0x17, 258 DW_LNE_HP_negate_function_exit = 0x18, 259 DW_LNE_HP_negate_front_end_logical = 0x19, 260 DW_LNE_HP_define_proc = 0x20, 261 DW_LNE_HP_source_file_correlation = 0x80, 262 263 DW_LNE_lo_user = 0x80, 264 DW_LNE_hi_user = 0xff 265 }; 266 267/* Sub-opcodes for DW_LNE_HP_source_file_correlation. */ 268enum dwarf_line_number_hp_sfc_ops 269 { 270 DW_LNE_HP_SFC_formfeed = 1, 271 DW_LNE_HP_SFC_set_listing_line = 2, 272 DW_LNE_HP_SFC_associate = 3 273 }; 274 275/* Content type codes in line table directory_entry_format 276 and file_name_entry_format sequences. */ 277enum dwarf_line_number_content_type 278 { 279 DW_LNCT_path = 0x1, 280 DW_LNCT_directory_index = 0x2, 281 DW_LNCT_timestamp = 0x3, 282 DW_LNCT_size = 0x4, 283 DW_LNCT_MD5 = 0x5, 284 DW_LNCT_lo_user = 0x2000, 285 DW_LNCT_hi_user = 0x3fff 286 }; 287 288/* Type codes for location list entries. */ 289enum dwarf_location_list_entry_type 290 { 291 DW_LLE_end_of_list = 0x00, 292 DW_LLE_base_addressx = 0x01, 293 DW_LLE_startx_endx = 0x02, 294 DW_LLE_startx_length = 0x03, 295 DW_LLE_offset_pair = 0x04, 296 DW_LLE_default_location = 0x05, 297 DW_LLE_base_address = 0x06, 298 DW_LLE_start_end = 0x07, 299 DW_LLE_start_length = 0x08, 300 301 /* <http://lists.dwarfstd.org/private.cgi/dwarf-discuss-dwarfstd.org/2017-April/004347.html> 302 has the proposal for now; only available to list members. 303 304 A (possibly updated) copy of the proposal is available at 305 <http://people.redhat.com/aoliva/papers/sfn/dwarf6-sfn-lvu.txt>. */ 306 DW_LLE_GNU_view_pair = 0x09, 307#define DW_LLE_view_pair DW_LLE_GNU_view_pair 308 309 /* Former extension for Fission. 310 See http://gcc.gnu.org/wiki/DebugFission. */ 311 DW_LLE_GNU_end_of_list_entry = 0x00, 312 DW_LLE_GNU_base_address_selection_entry = 0x01, 313 DW_LLE_GNU_start_end_entry = 0x02, 314 DW_LLE_GNU_start_length_entry = 0x03 315 }; 316 317#define DW_CIE_ID 0xffffffff 318#define DW64_CIE_ID 0xffffffffffffffffULL 319#define DW_CIE_VERSION 1 320 321#define DW_CFA_extended 0 322 323#define DW_CHILDREN_no 0x00 324#define DW_CHILDREN_yes 0x01 325 326#define DW_ADDR_none 0 327 328/* Source language names and codes. */ 329enum dwarf_source_language 330 { 331 DW_LANG_C89 = 0x0001, 332 DW_LANG_C = 0x0002, 333 DW_LANG_Ada83 = 0x0003, 334 DW_LANG_C_plus_plus = 0x0004, 335 DW_LANG_Cobol74 = 0x0005, 336 DW_LANG_Cobol85 = 0x0006, 337 DW_LANG_Fortran77 = 0x0007, 338 DW_LANG_Fortran90 = 0x0008, 339 DW_LANG_Pascal83 = 0x0009, 340 DW_LANG_Modula2 = 0x000a, 341 /* DWARF 3. */ 342 DW_LANG_Java = 0x000b, 343 DW_LANG_C99 = 0x000c, 344 DW_LANG_Ada95 = 0x000d, 345 DW_LANG_Fortran95 = 0x000e, 346 DW_LANG_PLI = 0x000f, 347 DW_LANG_ObjC = 0x0010, 348 DW_LANG_ObjC_plus_plus = 0x0011, 349 DW_LANG_UPC = 0x0012, 350 DW_LANG_D = 0x0013, 351 /* DWARF 4. */ 352 DW_LANG_Python = 0x0014, 353 /* DWARF 5. */ 354 DW_LANG_OpenCL = 0x0015, 355 DW_LANG_Go = 0x0016, 356 DW_LANG_Modula3 = 0x0017, 357 DW_LANG_Haskell = 0x0018, 358 DW_LANG_C_plus_plus_03 = 0x0019, 359 DW_LANG_C_plus_plus_11 = 0x001a, 360 DW_LANG_OCaml = 0x001b, 361 DW_LANG_Rust = 0x001c, 362 DW_LANG_C11 = 0x001d, 363 DW_LANG_Swift = 0x001e, 364 DW_LANG_Julia = 0x001f, 365 DW_LANG_Dylan = 0x0020, 366 DW_LANG_C_plus_plus_14 = 0x0021, 367 DW_LANG_Fortran03 = 0x0022, 368 DW_LANG_Fortran08 = 0x0023, 369 DW_LANG_RenderScript = 0x0024, 370 371 DW_LANG_lo_user = 0x8000, /* Implementation-defined range start. */ 372 DW_LANG_hi_user = 0xffff, /* Implementation-defined range start. */ 373 374 /* MIPS. */ 375 DW_LANG_Mips_Assembler = 0x8001, 376 /* UPC. */ 377 DW_LANG_Upc = 0x8765, 378 /* HP extensions. */ 379 DW_LANG_HP_Bliss = 0x8003, 380 DW_LANG_HP_Basic91 = 0x8004, 381 DW_LANG_HP_Pascal91 = 0x8005, 382 DW_LANG_HP_IMacro = 0x8006, 383 DW_LANG_HP_Assembler = 0x8007, 384 385 /* Rust extension, but replaced in DWARF 5. */ 386 DW_LANG_Rust_old = 0x9000 387 }; 388 389/* Names and codes for macro information. */ 390enum dwarf_macinfo_record_type 391 { 392 DW_MACINFO_define = 1, 393 DW_MACINFO_undef = 2, 394 DW_MACINFO_start_file = 3, 395 DW_MACINFO_end_file = 4, 396 DW_MACINFO_vendor_ext = 255 397 }; 398 399/* DW_TAG_defaulted/DW_TAG_GNU_defaulted attributes. */ 400enum dwarf_defaulted_attribute 401 { 402 DW_DEFAULTED_no = 0x00, 403 DW_DEFAULTED_in_class = 0x01, 404 DW_DEFAULTED_out_of_class = 0x02 405 }; 406 407/* Names and codes for new style macro information. */ 408enum dwarf_macro_record_type 409 { 410 DW_MACRO_define = 0x01, 411 DW_MACRO_undef = 0x02, 412 DW_MACRO_start_file = 0x03, 413 DW_MACRO_end_file = 0x04, 414 DW_MACRO_define_strp = 0x05, 415 DW_MACRO_undef_strp = 0x06, 416 DW_MACRO_import = 0x07, 417 DW_MACRO_define_sup = 0x08, 418 DW_MACRO_undef_sup = 0x09, 419 DW_MACRO_import_sup = 0x0a, 420 DW_MACRO_define_strx = 0x0b, 421 DW_MACRO_undef_strx = 0x0c, 422 DW_MACRO_lo_user = 0xe0, 423 DW_MACRO_hi_user = 0xff, 424 425 /* Compatibility macros for the GNU .debug_macro extension. */ 426 DW_MACRO_GNU_define = 0x01, 427 DW_MACRO_GNU_undef = 0x02, 428 DW_MACRO_GNU_start_file = 0x03, 429 DW_MACRO_GNU_end_file = 0x04, 430 DW_MACRO_GNU_define_indirect = 0x05, 431 DW_MACRO_GNU_undef_indirect = 0x06, 432 DW_MACRO_GNU_transparent_include = 0x07, 433 /* Extensions for DWZ multifile. 434 See http://www.dwarfstd.org/ShowIssue.php?issue=120604.1&type=open . */ 435 DW_MACRO_GNU_define_indirect_alt = 0x08, 436 DW_MACRO_GNU_undef_indirect_alt = 0x09, 437 DW_MACRO_GNU_transparent_include_alt = 0x0a, 438 DW_MACRO_GNU_lo_user = 0xe0, 439 DW_MACRO_GNU_hi_user = 0xff 440 }; 441 442/* Range list entry kinds in .debug_rnglists* section. */ 443enum dwarf_range_list_entry 444 { 445 DW_RLE_end_of_list = 0x00, 446 DW_RLE_base_addressx = 0x01, 447 DW_RLE_startx_endx = 0x02, 448 DW_RLE_startx_length = 0x03, 449 DW_RLE_offset_pair = 0x04, 450 DW_RLE_base_address = 0x05, 451 DW_RLE_start_end = 0x06, 452 DW_RLE_start_length = 0x07 453 }; 454 455/* Unit types in unit_type unit header field. */ 456enum dwarf_unit_type 457 { 458 DW_UT_compile = 0x01, 459 DW_UT_type = 0x02, 460 DW_UT_partial = 0x03, 461 DW_UT_skeleton = 0x04, 462 DW_UT_split_compile = 0x05, 463 DW_UT_split_type = 0x06, 464 DW_UT_lo_user = 0x80, 465 DW_UT_hi_user = 0xff 466 }; 467 468/* @@@ For use with GNU frame unwind information. */ 469 470#define DW_EH_PE_absptr 0x00 471#define DW_EH_PE_omit 0xff 472 473#define DW_EH_PE_uleb128 0x01 474#define DW_EH_PE_udata2 0x02 475#define DW_EH_PE_udata4 0x03 476#define DW_EH_PE_udata8 0x04 477#define DW_EH_PE_sleb128 0x09 478#define DW_EH_PE_sdata2 0x0A 479#define DW_EH_PE_sdata4 0x0B 480#define DW_EH_PE_sdata8 0x0C 481#define DW_EH_PE_signed 0x08 482 483#define DW_EH_PE_pcrel 0x10 484#define DW_EH_PE_textrel 0x20 485#define DW_EH_PE_datarel 0x30 486#define DW_EH_PE_funcrel 0x40 487#define DW_EH_PE_aligned 0x50 488 489#define DW_EH_PE_indirect 0x80 490 491/* Codes for the debug sections in a dwarf package (.dwp) file. 492 Extensions for Fission. See http://gcc.gnu.org/wiki/DebugFissionDWP. */ 493enum dwarf_sect 494 { 495 DW_SECT_INFO = 1, 496 DW_SECT_TYPES = 2, 497 DW_SECT_ABBREV = 3, 498 DW_SECT_LINE = 4, 499 DW_SECT_LOC = 5, 500 DW_SECT_STR_OFFSETS = 6, 501 DW_SECT_MACINFO = 7, 502 DW_SECT_MACRO = 8, 503 DW_SECT_MAX = 8 504 }; 505 506#ifdef __cplusplus 507extern "C" { 508#endif /* __cplusplus */ 509 510/* Return the name of a DW_TAG_ constant, or NULL if the value is not 511 recognized. */ 512extern const char *get_DW_TAG_name (unsigned int tag); 513 514/* Return the name of a DW_AT_ constant, or NULL if the value is not 515 recognized. */ 516extern const char *get_DW_AT_name (unsigned int attr); 517 518/* Return the name of a DW_FORM_ constant, or NULL if the value is not 519 recognized. */ 520extern const char *get_DW_FORM_name (unsigned int form); 521 522/* Return the name of a DW_OP_ constant, or NULL if the value is not 523 recognized. */ 524extern const char *get_DW_OP_name (unsigned int op); 525 526/* Return the name of a DW_ATE_ constant, or NULL if the value is not 527 recognized. */ 528extern const char *get_DW_ATE_name (unsigned int enc); 529 530/* Return the name of a DW_CFA_ constant, or NULL if the value is not 531 recognized. */ 532extern const char *get_DW_CFA_name (unsigned int opc); 533 534/* Return the name of a DW_IDX_ constant, or NULL if the value is not 535 recognized. */ 536extern const char *get_DW_IDX_name (unsigned int idx); 537 538#ifdef __cplusplus 539} 540#endif /* __cplusplus */ 541 542#endif /* _DWARF2_H */ 543