1 // This file originally from https://github.com/philipc/rust-dwarf/ and 2 // distributed under either MIT or Apache 2.0 licenses. 3 // 4 // Copyright 2016 The rust-dwarf Developers 5 // 6 // Licensed under the Apache License, Version 2.0 (the "License"); 7 // you may not use this file except in compliance with the License. 8 // You may obtain a copy of the License at 9 // 10 // http://www.apache.org/licenses/LICENSE-2.0 11 // 12 // Unless required by applicable law or agreed to in writing, software 13 // distributed under the License is distributed on an "AS IS" BASIS, 14 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 // See the License for the specific language governing permissions and 16 // limitations under the License. 17 18 //! Constant definitions. 19 //! 20 //! The DWARF spec's `DW_AT_*` type is represented as `struct DwAt(u16)`, 21 //! `DW_FORM_*` as `DwForm(u16)`, etc. 22 //! 23 //! There are also exported const definitions for each constant. 24 25 #![allow(non_upper_case_globals)] 26 #![allow(missing_docs)] 27 28 use core::fmt; 29 30 // The `dw!` macro turns this: 31 // 32 // dw!(DwFoo(u32) { 33 // DW_FOO_bar = 0, 34 // DW_FOO_baz = 1, 35 // DW_FOO_bang = 2, 36 // }); 37 // 38 // into this: 39 // 40 // #[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, PartialOrd, Ord)] 41 // pub struct DwFoo(pub u32); 42 // 43 // pub const DW_FOO_bar: DwFoo = DwFoo(0); 44 // pub const DW_FOO_baz: DwFoo = DwFoo(1); 45 // pub const DW_FOO_bang: DwFoo = DwFoo(2); 46 // 47 // impl DwFoo { 48 // pub fn static_string(&self) -> Option<&'static str> { 49 // ... 50 // } 51 // } 52 // 53 // impl fmt::Display for DwFoo { 54 // fn fmt(&self, f: &mut fmt::Formatter) -> Result<(), fmt::Error> { 55 // ... 56 // } 57 // } 58 macro_rules! dw { 59 ($(#[$meta:meta])* $struct_name:ident($struct_type:ty) { $($name:ident = $val:expr),+ $(,)? }) => { 60 $(#[$meta])* 61 #[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, PartialOrd, Ord)] 62 pub struct $struct_name(pub $struct_type); 63 64 $( 65 pub const $name: $struct_name = $struct_name($val); 66 )+ 67 68 impl $struct_name { 69 pub fn static_string(&self) -> Option<&'static str> { 70 Some(match *self { 71 $( 72 $name => stringify!($name), 73 )+ 74 _ => return None, 75 }) 76 } 77 } 78 79 impl fmt::Display for $struct_name { 80 fn fmt(&self, f: &mut fmt::Formatter) -> Result<(), fmt::Error> { 81 if let Some(s) = self.static_string() { 82 f.pad(s) 83 } else { 84 f.pad(&format!("Unknown {}: {}", 85 stringify!($struct_name), 86 self.0)) 87 } 88 } 89 } 90 }; 91 } 92 93 dw!( 94 /// The unit type field in a unit header. 95 /// 96 /// See Section 7.5.1, Table 7.2. 97 DwUt(u8) { 98 DW_UT_compile = 0x01, 99 DW_UT_type = 0x02, 100 DW_UT_partial = 0x03, 101 DW_UT_skeleton = 0x04, 102 DW_UT_split_compile = 0x05, 103 DW_UT_split_type = 0x06, 104 DW_UT_lo_user = 0x80, 105 DW_UT_hi_user = 0xff, 106 }); 107 108 dw!( 109 /// The opcode for a call frame instruction. 110 /// 111 /// Section 7.24: 112 /// > Call frame instructions are encoded in one or more bytes. The primary 113 /// > opcode is encoded in the high order two bits of the first byte (that is, 114 /// > opcode = byte >> 6). An operand or extended opcode may be encoded in the 115 /// > low order 6 bits. Additional operands are encoded in subsequent bytes. 116 DwCfa(u8) { 117 DW_CFA_advance_loc = 0x01 << 6, 118 DW_CFA_offset = 0x02 << 6, 119 DW_CFA_restore = 0x03 << 6, 120 DW_CFA_nop = 0, 121 DW_CFA_set_loc = 0x01, 122 DW_CFA_advance_loc1 = 0x02, 123 DW_CFA_advance_loc2 = 0x03, 124 DW_CFA_advance_loc4 = 0x04, 125 DW_CFA_offset_extended = 0x05, 126 DW_CFA_restore_extended = 0x06, 127 DW_CFA_undefined = 0x07, 128 DW_CFA_same_value = 0x08, 129 DW_CFA_register = 0x09, 130 DW_CFA_remember_state = 0x0a, 131 DW_CFA_restore_state = 0x0b, 132 DW_CFA_def_cfa = 0x0c, 133 DW_CFA_def_cfa_register = 0x0d, 134 DW_CFA_def_cfa_offset = 0x0e, 135 DW_CFA_def_cfa_expression = 0x0f, 136 DW_CFA_expression = 0x10, 137 DW_CFA_offset_extended_sf = 0x11, 138 DW_CFA_def_cfa_sf = 0x12, 139 DW_CFA_def_cfa_offset_sf = 0x13, 140 DW_CFA_val_offset = 0x14, 141 DW_CFA_val_offset_sf = 0x15, 142 DW_CFA_val_expression = 0x16, 143 144 DW_CFA_lo_user = 0x1c, 145 DW_CFA_hi_user = 0x3f, 146 147 DW_CFA_MIPS_advance_loc8 = 0x1d, 148 DW_CFA_GNU_window_save = 0x2d, 149 DW_CFA_GNU_args_size = 0x2e, 150 DW_CFA_GNU_negative_offset_extended = 0x2f, 151 }); 152 153 dw!( 154 /// The child determination encodings for DIE attributes. 155 /// 156 /// See Section 7.5.3, Table 7.4. 157 DwChildren(u8) { 158 DW_CHILDREN_no = 0, 159 DW_CHILDREN_yes = 1, 160 }); 161 162 dw!( 163 /// The tag encodings for DIE attributes. 164 /// 165 /// See Section 7.5.3, Table 7.3. 166 DwTag(u16) { 167 DW_TAG_null = 0x00, 168 169 DW_TAG_array_type = 0x01, 170 DW_TAG_class_type = 0x02, 171 DW_TAG_entry_point = 0x03, 172 DW_TAG_enumeration_type = 0x04, 173 DW_TAG_formal_parameter = 0x05, 174 DW_TAG_imported_declaration = 0x08, 175 DW_TAG_label = 0x0a, 176 DW_TAG_lexical_block = 0x0b, 177 DW_TAG_member = 0x0d, 178 DW_TAG_pointer_type = 0x0f, 179 DW_TAG_reference_type = 0x10, 180 DW_TAG_compile_unit = 0x11, 181 DW_TAG_string_type = 0x12, 182 DW_TAG_structure_type = 0x13, 183 DW_TAG_subroutine_type = 0x15, 184 DW_TAG_typedef = 0x16, 185 DW_TAG_union_type = 0x17, 186 DW_TAG_unspecified_parameters = 0x18, 187 DW_TAG_variant = 0x19, 188 DW_TAG_common_block = 0x1a, 189 DW_TAG_common_inclusion = 0x1b, 190 DW_TAG_inheritance = 0x1c, 191 DW_TAG_inlined_subroutine = 0x1d, 192 DW_TAG_module = 0x1e, 193 DW_TAG_ptr_to_member_type = 0x1f, 194 DW_TAG_set_type = 0x20, 195 DW_TAG_subrange_type = 0x21, 196 DW_TAG_with_stmt = 0x22, 197 DW_TAG_access_declaration = 0x23, 198 DW_TAG_base_type = 0x24, 199 DW_TAG_catch_block = 0x25, 200 DW_TAG_const_type = 0x26, 201 DW_TAG_constant = 0x27, 202 DW_TAG_enumerator = 0x28, 203 DW_TAG_file_type = 0x29, 204 DW_TAG_friend = 0x2a, 205 DW_TAG_namelist = 0x2b, 206 DW_TAG_namelist_item = 0x2c, 207 DW_TAG_packed_type = 0x2d, 208 DW_TAG_subprogram = 0x2e, 209 DW_TAG_template_type_parameter = 0x2f, 210 DW_TAG_template_value_parameter = 0x30, 211 DW_TAG_thrown_type = 0x31, 212 DW_TAG_try_block = 0x32, 213 DW_TAG_variant_part = 0x33, 214 DW_TAG_variable = 0x34, 215 DW_TAG_volatile_type = 0x35, 216 217 // DWARF 3. 218 DW_TAG_dwarf_procedure = 0x36, 219 DW_TAG_restrict_type = 0x37, 220 DW_TAG_interface_type = 0x38, 221 DW_TAG_namespace = 0x39, 222 DW_TAG_imported_module = 0x3a, 223 DW_TAG_unspecified_type = 0x3b, 224 DW_TAG_partial_unit = 0x3c, 225 DW_TAG_imported_unit = 0x3d, 226 DW_TAG_condition = 0x3f, 227 DW_TAG_shared_type = 0x40, 228 229 // DWARF 4. 230 DW_TAG_type_unit = 0x41, 231 DW_TAG_rvalue_reference_type = 0x42, 232 DW_TAG_template_alias = 0x43, 233 234 // DWARF 5. 235 DW_TAG_coarray_type = 0x44, 236 DW_TAG_generic_subrange = 0x45, 237 DW_TAG_dynamic_type = 0x46, 238 DW_TAG_atomic_type = 0x47, 239 DW_TAG_call_site = 0x48, 240 DW_TAG_call_site_parameter = 0x49, 241 DW_TAG_skeleton_unit = 0x4a, 242 DW_TAG_immutable_type = 0x4b, 243 244 DW_TAG_lo_user = 0x4080, 245 DW_TAG_hi_user = 0xffff, 246 247 // SGI/MIPS extensions. 248 DW_TAG_MIPS_loop = 0x4081, 249 250 // HP extensions. 251 DW_TAG_HP_array_descriptor = 0x4090, 252 DW_TAG_HP_Bliss_field = 0x4091, 253 DW_TAG_HP_Bliss_field_set = 0x4092, 254 255 // GNU extensions. 256 DW_TAG_format_label = 0x4101, 257 DW_TAG_function_template = 0x4102, 258 DW_TAG_class_template = 0x4103, 259 DW_TAG_GNU_BINCL = 0x4104, 260 DW_TAG_GNU_EINCL = 0x4105, 261 DW_TAG_GNU_template_template_param = 0x4106, 262 DW_TAG_GNU_template_parameter_pack = 0x4107, 263 DW_TAG_GNU_formal_parameter_pack = 0x4108, 264 DW_TAG_GNU_call_site = 0x4109, 265 DW_TAG_GNU_call_site_parameter = 0x410a, 266 267 DW_TAG_APPLE_property = 0x4200, 268 269 // SUN extensions. 270 DW_TAG_SUN_function_template = 0x4201, 271 DW_TAG_SUN_class_template = 0x4202, 272 DW_TAG_SUN_struct_template = 0x4203, 273 DW_TAG_SUN_union_template = 0x4204, 274 DW_TAG_SUN_indirect_inheritance = 0x4205, 275 DW_TAG_SUN_codeflags = 0x4206, 276 DW_TAG_SUN_memop_info = 0x4207, 277 DW_TAG_SUN_omp_child_func = 0x4208, 278 DW_TAG_SUN_rtti_descriptor = 0x4209, 279 DW_TAG_SUN_dtor_info = 0x420a, 280 DW_TAG_SUN_dtor = 0x420b, 281 DW_TAG_SUN_f90_interface = 0x420c, 282 DW_TAG_SUN_fortran_vax_structure = 0x420d, 283 284 // ALTIUM extensions. 285 DW_TAG_ALTIUM_circ_type = 0x5101, 286 DW_TAG_ALTIUM_mwa_circ_type = 0x5102, 287 DW_TAG_ALTIUM_rev_carry_type = 0x5103, 288 DW_TAG_ALTIUM_rom = 0x5111, 289 290 // Extensions for UPC. 291 DW_TAG_upc_shared_type = 0x8765, 292 DW_TAG_upc_strict_type = 0x8766, 293 DW_TAG_upc_relaxed_type = 0x8767, 294 295 // PGI (STMicroelectronics) extensions. 296 DW_TAG_PGI_kanji_type = 0xa000, 297 DW_TAG_PGI_interface_block = 0xa020, 298 299 // Borland extensions. 300 DW_TAG_BORLAND_property = 0xb000, 301 DW_TAG_BORLAND_Delphi_string = 0xb001, 302 DW_TAG_BORLAND_Delphi_dynamic_array = 0xb002, 303 DW_TAG_BORLAND_Delphi_set = 0xb003, 304 DW_TAG_BORLAND_Delphi_variant = 0xb004, 305 }); 306 307 dw!( 308 /// The attribute encodings for DIE attributes. 309 /// 310 /// See Section 7.5.4, Table 7.5. 311 DwAt(u16) { 312 DW_AT_null = 0x00, 313 314 DW_AT_sibling = 0x01, 315 DW_AT_location = 0x02, 316 DW_AT_name = 0x03, 317 DW_AT_ordering = 0x09, 318 DW_AT_byte_size = 0x0b, 319 DW_AT_bit_offset = 0x0c, 320 DW_AT_bit_size = 0x0d, 321 DW_AT_stmt_list = 0x10, 322 DW_AT_low_pc = 0x11, 323 DW_AT_high_pc = 0x12, 324 DW_AT_language = 0x13, 325 DW_AT_discr = 0x15, 326 DW_AT_discr_value = 0x16, 327 DW_AT_visibility = 0x17, 328 DW_AT_import = 0x18, 329 DW_AT_string_length = 0x19, 330 DW_AT_common_reference = 0x1a, 331 DW_AT_comp_dir = 0x1b, 332 DW_AT_const_value = 0x1c, 333 DW_AT_containing_type = 0x1d, 334 DW_AT_default_value = 0x1e, 335 DW_AT_inline = 0x20, 336 DW_AT_is_optional = 0x21, 337 DW_AT_lower_bound = 0x22, 338 DW_AT_producer = 0x25, 339 DW_AT_prototyped = 0x27, 340 DW_AT_return_addr = 0x2a, 341 DW_AT_start_scope = 0x2c, 342 DW_AT_bit_stride = 0x2e, 343 DW_AT_upper_bound = 0x2f, 344 DW_AT_abstract_origin = 0x31, 345 DW_AT_accessibility = 0x32, 346 DW_AT_address_class = 0x33, 347 DW_AT_artificial = 0x34, 348 DW_AT_base_types = 0x35, 349 DW_AT_calling_convention = 0x36, 350 DW_AT_count = 0x37, 351 DW_AT_data_member_location = 0x38, 352 DW_AT_decl_column = 0x39, 353 DW_AT_decl_file = 0x3a, 354 DW_AT_decl_line = 0x3b, 355 DW_AT_declaration = 0x3c, 356 DW_AT_discr_list = 0x3d, 357 DW_AT_encoding = 0x3e, 358 DW_AT_external = 0x3f, 359 DW_AT_frame_base = 0x40, 360 DW_AT_friend = 0x41, 361 DW_AT_identifier_case = 0x42, 362 DW_AT_macro_info = 0x43, 363 DW_AT_namelist_item = 0x44, 364 DW_AT_priority = 0x45, 365 DW_AT_segment = 0x46, 366 DW_AT_specification = 0x47, 367 DW_AT_static_link = 0x48, 368 DW_AT_type = 0x49, 369 DW_AT_use_location = 0x4a, 370 DW_AT_variable_parameter = 0x4b, 371 DW_AT_virtuality = 0x4c, 372 DW_AT_vtable_elem_location = 0x4d, 373 374 // DWARF 3. 375 DW_AT_allocated = 0x4e, 376 DW_AT_associated = 0x4f, 377 DW_AT_data_location = 0x50, 378 DW_AT_byte_stride = 0x51, 379 DW_AT_entry_pc = 0x52, 380 DW_AT_use_UTF8 = 0x53, 381 DW_AT_extension = 0x54, 382 DW_AT_ranges = 0x55, 383 DW_AT_trampoline = 0x56, 384 DW_AT_call_column = 0x57, 385 DW_AT_call_file = 0x58, 386 DW_AT_call_line = 0x59, 387 DW_AT_description = 0x5a, 388 DW_AT_binary_scale = 0x5b, 389 DW_AT_decimal_scale = 0x5c, 390 DW_AT_small = 0x5d, 391 DW_AT_decimal_sign = 0x5e, 392 DW_AT_digit_count = 0x5f, 393 DW_AT_picture_string = 0x60, 394 DW_AT_mutable = 0x61, 395 DW_AT_threads_scaled = 0x62, 396 DW_AT_explicit = 0x63, 397 DW_AT_object_pointer = 0x64, 398 DW_AT_endianity = 0x65, 399 DW_AT_elemental = 0x66, 400 DW_AT_pure = 0x67, 401 DW_AT_recursive = 0x68, 402 403 // DWARF 4. 404 DW_AT_signature = 0x69, 405 DW_AT_main_subprogram = 0x6a, 406 DW_AT_data_bit_offset = 0x6b, 407 DW_AT_const_expr = 0x6c, 408 DW_AT_enum_class = 0x6d, 409 DW_AT_linkage_name = 0x6e, 410 411 // DWARF 5. 412 DW_AT_string_length_bit_size = 0x6f, 413 DW_AT_string_length_byte_size = 0x70, 414 DW_AT_rank = 0x71, 415 DW_AT_str_offsets_base = 0x72, 416 DW_AT_addr_base = 0x73, 417 DW_AT_rnglists_base = 0x74, 418 DW_AT_dwo_name = 0x76, 419 DW_AT_reference = 0x77, 420 DW_AT_rvalue_reference = 0x78, 421 DW_AT_macros = 0x79, 422 DW_AT_call_all_calls = 0x7a, 423 DW_AT_call_all_source_calls = 0x7b, 424 DW_AT_call_all_tail_calls = 0x7c, 425 DW_AT_call_return_pc = 0x7d, 426 DW_AT_call_value = 0x7e, 427 DW_AT_call_origin = 0x7f, 428 DW_AT_call_parameter = 0x80, 429 DW_AT_call_pc = 0x81, 430 DW_AT_call_tail_call = 0x82, 431 DW_AT_call_target = 0x83, 432 DW_AT_call_target_clobbered = 0x84, 433 DW_AT_call_data_location = 0x85, 434 DW_AT_call_data_value = 0x86, 435 DW_AT_noreturn = 0x87, 436 DW_AT_alignment = 0x88, 437 DW_AT_export_symbols = 0x89, 438 DW_AT_deleted = 0x8a, 439 DW_AT_defaulted = 0x8b, 440 DW_AT_loclists_base = 0x8c, 441 442 DW_AT_lo_user = 0x2000, 443 DW_AT_hi_user = 0x3fff, 444 445 // SGI/MIPS extensions. 446 DW_AT_MIPS_fde = 0x2001, 447 DW_AT_MIPS_loop_begin = 0x2002, 448 DW_AT_MIPS_tail_loop_begin = 0x2003, 449 DW_AT_MIPS_epilog_begin = 0x2004, 450 DW_AT_MIPS_loop_unroll_factor = 0x2005, 451 DW_AT_MIPS_software_pipeline_depth = 0x2006, 452 DW_AT_MIPS_linkage_name = 0x2007, 453 DW_AT_MIPS_stride = 0x2008, 454 DW_AT_MIPS_abstract_name = 0x2009, 455 DW_AT_MIPS_clone_origin = 0x200a, 456 DW_AT_MIPS_has_inlines = 0x200b, 457 DW_AT_MIPS_stride_byte = 0x200c, 458 DW_AT_MIPS_stride_elem = 0x200d, 459 DW_AT_MIPS_ptr_dopetype = 0x200e, 460 DW_AT_MIPS_allocatable_dopetype = 0x200f, 461 DW_AT_MIPS_assumed_shape_dopetype = 0x2010, 462 463 // This one appears to have only been implemented by Open64 for 464 // fortran and may conflict with other extensions. 465 DW_AT_MIPS_assumed_size = 0x2011, 466 467 // TODO: HP/CPQ extensions. 468 // These conflict with the MIPS extensions. 469 470 DW_AT_INTEL_other_endian = 0x2026, 471 472 // GNU extensions 473 DW_AT_sf_names = 0x2101, 474 DW_AT_src_info = 0x2102, 475 DW_AT_mac_info = 0x2103, 476 DW_AT_src_coords = 0x2104, 477 DW_AT_body_begin = 0x2105, 478 DW_AT_body_end = 0x2106, 479 DW_AT_GNU_vector = 0x2107, 480 DW_AT_GNU_guarded_by = 0x2108, 481 DW_AT_GNU_pt_guarded_by = 0x2109, 482 DW_AT_GNU_guarded = 0x210a, 483 DW_AT_GNU_pt_guarded = 0x210b, 484 DW_AT_GNU_locks_excluded = 0x210c, 485 DW_AT_GNU_exclusive_locks_required = 0x210d, 486 DW_AT_GNU_shared_locks_required = 0x210e, 487 DW_AT_GNU_odr_signature = 0x210f, 488 DW_AT_GNU_template_name = 0x2110, 489 DW_AT_GNU_call_site_value = 0x2111, 490 DW_AT_GNU_call_site_data_value = 0x2112, 491 DW_AT_GNU_call_site_target = 0x2113, 492 DW_AT_GNU_call_site_target_clobbered = 0x2114, 493 DW_AT_GNU_tail_call = 0x2115, 494 DW_AT_GNU_all_tail_call_sites = 0x2116, 495 DW_AT_GNU_all_call_sites = 0x2117, 496 DW_AT_GNU_all_source_call_sites = 0x2118, 497 DW_AT_GNU_macros = 0x2119, 498 499 // Extensions for Fission proposal. 500 DW_AT_GNU_dwo_name = 0x2130, 501 DW_AT_GNU_dwo_id = 0x2131, 502 DW_AT_GNU_ranges_base = 0x2132, 503 DW_AT_GNU_addr_base = 0x2133, 504 DW_AT_GNU_pubnames = 0x2134, 505 DW_AT_GNU_pubtypes = 0x2135, 506 DW_AT_GNU_discriminator = 0x2136, 507 DW_AT_GNU_locviews = 0x2137, 508 DW_AT_GNU_entry_view = 0x2138, 509 510 // Conflict with Sun. 511 // DW_AT_VMS_rtnbeg_pd_address = 0x2201, 512 513 // Sun extensions. 514 DW_AT_SUN_template = 0x2201, 515 DW_AT_SUN_alignment = 0x2202, 516 DW_AT_SUN_vtable = 0x2203, 517 DW_AT_SUN_count_guarantee = 0x2204, 518 DW_AT_SUN_command_line = 0x2205, 519 DW_AT_SUN_vbase = 0x2206, 520 DW_AT_SUN_compile_options = 0x2207, 521 DW_AT_SUN_language = 0x2208, 522 DW_AT_SUN_browser_file = 0x2209, 523 DW_AT_SUN_vtable_abi = 0x2210, 524 DW_AT_SUN_func_offsets = 0x2211, 525 DW_AT_SUN_cf_kind = 0x2212, 526 DW_AT_SUN_vtable_index = 0x2213, 527 DW_AT_SUN_omp_tpriv_addr = 0x2214, 528 DW_AT_SUN_omp_child_func = 0x2215, 529 DW_AT_SUN_func_offset = 0x2216, 530 DW_AT_SUN_memop_type_ref = 0x2217, 531 DW_AT_SUN_profile_id = 0x2218, 532 DW_AT_SUN_memop_signature = 0x2219, 533 DW_AT_SUN_obj_dir = 0x2220, 534 DW_AT_SUN_obj_file = 0x2221, 535 DW_AT_SUN_original_name = 0x2222, 536 DW_AT_SUN_hwcprof_signature = 0x2223, 537 DW_AT_SUN_amd64_parmdump = 0x2224, 538 DW_AT_SUN_part_link_name = 0x2225, 539 DW_AT_SUN_link_name = 0x2226, 540 DW_AT_SUN_pass_with_const = 0x2227, 541 DW_AT_SUN_return_with_const = 0x2228, 542 DW_AT_SUN_import_by_name = 0x2229, 543 DW_AT_SUN_f90_pointer = 0x222a, 544 DW_AT_SUN_pass_by_ref = 0x222b, 545 DW_AT_SUN_f90_allocatable = 0x222c, 546 DW_AT_SUN_f90_assumed_shape_array = 0x222d, 547 DW_AT_SUN_c_vla = 0x222e, 548 DW_AT_SUN_return_value_ptr = 0x2230, 549 DW_AT_SUN_dtor_start = 0x2231, 550 DW_AT_SUN_dtor_length = 0x2232, 551 DW_AT_SUN_dtor_state_initial = 0x2233, 552 DW_AT_SUN_dtor_state_final = 0x2234, 553 DW_AT_SUN_dtor_state_deltas = 0x2235, 554 DW_AT_SUN_import_by_lname = 0x2236, 555 DW_AT_SUN_f90_use_only = 0x2237, 556 DW_AT_SUN_namelist_spec = 0x2238, 557 DW_AT_SUN_is_omp_child_func = 0x2239, 558 DW_AT_SUN_fortran_main_alias = 0x223a, 559 DW_AT_SUN_fortran_based = 0x223b, 560 561 DW_AT_ALTIUM_loclist = 0x2300, 562 563 DW_AT_use_GNAT_descriptive_type = 0x2301, 564 DW_AT_GNAT_descriptive_type = 0x2302, 565 DW_AT_GNU_numerator = 0x2303, 566 DW_AT_GNU_denominator = 0x2304, 567 DW_AT_GNU_bias = 0x2305, 568 569 DW_AT_upc_threads_scaled = 0x3210, 570 571 // PGI (STMicroelectronics) extensions. 572 DW_AT_PGI_lbase = 0x3a00, 573 DW_AT_PGI_soffset = 0x3a01, 574 DW_AT_PGI_lstride = 0x3a02, 575 576 // Borland extensions. 577 DW_AT_BORLAND_property_read = 0x3b11, 578 DW_AT_BORLAND_property_write = 0x3b12, 579 DW_AT_BORLAND_property_implements = 0x3b13, 580 DW_AT_BORLAND_property_index = 0x3b14, 581 DW_AT_BORLAND_property_default = 0x3b15, 582 DW_AT_BORLAND_Delphi_unit = 0x3b20, 583 DW_AT_BORLAND_Delphi_class = 0x3b21, 584 DW_AT_BORLAND_Delphi_record = 0x3b22, 585 DW_AT_BORLAND_Delphi_metaclass = 0x3b23, 586 DW_AT_BORLAND_Delphi_constructor = 0x3b24, 587 DW_AT_BORLAND_Delphi_destructor = 0x3b25, 588 DW_AT_BORLAND_Delphi_anonymous_method = 0x3b26, 589 DW_AT_BORLAND_Delphi_interface = 0x3b27, 590 DW_AT_BORLAND_Delphi_ABI = 0x3b28, 591 DW_AT_BORLAND_Delphi_return = 0x3b29, 592 DW_AT_BORLAND_Delphi_frameptr = 0x3b30, 593 DW_AT_BORLAND_closure = 0x3b31, 594 595 // LLVM project extensions. 596 DW_AT_LLVM_include_path = 0x3e00, 597 DW_AT_LLVM_config_macros = 0x3e01, 598 DW_AT_LLVM_isysroot = 0x3e02, 599 600 // Apple extensions. 601 DW_AT_APPLE_optimized = 0x3fe1, 602 DW_AT_APPLE_flags = 0x3fe2, 603 DW_AT_APPLE_isa = 0x3fe3, 604 DW_AT_APPLE_block = 0x3fe4, 605 DW_AT_APPLE_major_runtime_vers = 0x3fe5, 606 DW_AT_APPLE_runtime_class = 0x3fe6, 607 DW_AT_APPLE_omit_frame_ptr = 0x3fe7, 608 DW_AT_APPLE_property_name = 0x3fe8, 609 DW_AT_APPLE_property_getter = 0x3fe9, 610 DW_AT_APPLE_property_setter = 0x3fea, 611 DW_AT_APPLE_property_attribute = 0x3feb, 612 DW_AT_APPLE_objc_complete_type = 0x3fec, 613 DW_AT_APPLE_property = 0x3fed 614 }); 615 616 dw!( 617 /// The attribute form encodings for DIE attributes. 618 /// 619 /// See Section 7.5.6, Table 7.6. 620 DwForm(u16) { 621 DW_FORM_null = 0x00, 622 623 DW_FORM_addr = 0x01, 624 DW_FORM_block2 = 0x03, 625 DW_FORM_block4 = 0x04, 626 DW_FORM_data2 = 0x05, 627 DW_FORM_data4 = 0x06, 628 DW_FORM_data8 = 0x07, 629 DW_FORM_string = 0x08, 630 DW_FORM_block = 0x09, 631 DW_FORM_block1 = 0x0a, 632 DW_FORM_data1 = 0x0b, 633 DW_FORM_flag = 0x0c, 634 DW_FORM_sdata = 0x0d, 635 DW_FORM_strp = 0x0e, 636 DW_FORM_udata = 0x0f, 637 DW_FORM_ref_addr = 0x10, 638 DW_FORM_ref1 = 0x11, 639 DW_FORM_ref2 = 0x12, 640 DW_FORM_ref4 = 0x13, 641 DW_FORM_ref8 = 0x14, 642 DW_FORM_ref_udata = 0x15, 643 DW_FORM_indirect = 0x16, 644 645 // DWARF 4. 646 DW_FORM_sec_offset = 0x17, 647 DW_FORM_exprloc = 0x18, 648 DW_FORM_flag_present = 0x19, 649 DW_FORM_ref_sig8 = 0x20, 650 651 // DWARF 5. 652 DW_FORM_strx = 0x1a, 653 DW_FORM_addrx = 0x1b, 654 DW_FORM_ref_sup4 = 0x1c, 655 DW_FORM_strp_sup = 0x1d, 656 DW_FORM_data16 = 0x1e, 657 DW_FORM_line_strp = 0x1f, 658 DW_FORM_implicit_const = 0x21, 659 DW_FORM_loclistx = 0x22, 660 DW_FORM_rnglistx = 0x23, 661 DW_FORM_ref_sup8 = 0x24, 662 DW_FORM_strx1 = 0x25, 663 DW_FORM_strx2 = 0x26, 664 DW_FORM_strx3 = 0x27, 665 DW_FORM_strx4 = 0x28, 666 DW_FORM_addrx1 = 0x29, 667 DW_FORM_addrx2 = 0x2a, 668 DW_FORM_addrx3 = 0x2b, 669 DW_FORM_addrx4 = 0x2c, 670 671 // Extensions for Fission proposal 672 DW_FORM_GNU_addr_index = 0x1f01, 673 DW_FORM_GNU_str_index = 0x1f02, 674 675 // Alternate debug sections proposal (output of "dwz" tool). 676 DW_FORM_GNU_ref_alt = 0x1f20, 677 DW_FORM_GNU_strp_alt = 0x1f21 678 }); 679 680 dw!( 681 /// The encodings of the constants used in the `DW_AT_encoding` attribute. 682 /// 683 /// See Section 7.8, Table 7.11. 684 DwAte(u8) { 685 DW_ATE_address = 0x01, 686 DW_ATE_boolean = 0x02, 687 DW_ATE_complex_float = 0x03, 688 DW_ATE_float = 0x04, 689 DW_ATE_signed = 0x05, 690 DW_ATE_signed_char = 0x06, 691 DW_ATE_unsigned = 0x07, 692 DW_ATE_unsigned_char = 0x08, 693 694 // DWARF 3. 695 DW_ATE_imaginary_float = 0x09, 696 DW_ATE_packed_decimal = 0x0a, 697 DW_ATE_numeric_string = 0x0b, 698 DW_ATE_edited = 0x0c, 699 DW_ATE_signed_fixed = 0x0d, 700 DW_ATE_unsigned_fixed = 0x0e, 701 DW_ATE_decimal_float = 0x0f , 702 703 // DWARF 4. 704 DW_ATE_UTF = 0x10, 705 DW_ATE_UCS = 0x11, 706 DW_ATE_ASCII = 0x12, 707 708 DW_ATE_lo_user = 0x80, 709 DW_ATE_hi_user = 0xff, 710 }); 711 712 dw!( 713 /// The encodings of the constants used in location list entries. 714 /// 715 /// See Section 7.7.3, Table 7.10. 716 DwLle(u8) { 717 DW_LLE_end_of_list = 0x00, 718 DW_LLE_base_addressx = 0x01, 719 DW_LLE_startx_endx = 0x02, 720 DW_LLE_startx_length = 0x03, 721 DW_LLE_offset_pair = 0x04, 722 DW_LLE_default_location = 0x05, 723 DW_LLE_base_address = 0x06, 724 DW_LLE_start_end = 0x07, 725 DW_LLE_start_length = 0x08, 726 DW_LLE_GNU_view_pair = 0x09, 727 }); 728 729 dw!( 730 /// The encodings of the constants used in the `DW_AT_decimal_sign` attribute. 731 /// 732 /// See Section 7.8, Table 7.12. 733 DwDs(u8) { 734 DW_DS_unsigned = 0x01, 735 DW_DS_leading_overpunch = 0x02, 736 DW_DS_trailing_overpunch = 0x03, 737 DW_DS_leading_separate = 0x04, 738 DW_DS_trailing_separate = 0x05, 739 }); 740 741 dw!( 742 /// The encodings of the constants used in the `DW_AT_endianity` attribute. 743 /// 744 /// See Section 7.8, Table 7.13. 745 DwEnd(u8) { 746 DW_END_default = 0x00, 747 DW_END_big = 0x01, 748 DW_END_little = 0x02, 749 DW_END_lo_user = 0x40, 750 DW_END_hi_user = 0xff, 751 }); 752 753 dw!( 754 /// The encodings of the constants used in the `DW_AT_accessibility` attribute. 755 /// 756 /// See Section 7.9, Table 7.14. 757 DwAccess(u8) { 758 DW_ACCESS_public = 0x01, 759 DW_ACCESS_protected = 0x02, 760 DW_ACCESS_private = 0x03, 761 }); 762 763 dw!( 764 /// The encodings of the constants used in the `DW_AT_visibility` attribute. 765 /// 766 /// See Section 7.10, Table 7.15. 767 DwVis(u8) { 768 DW_VIS_local = 0x01, 769 DW_VIS_exported = 0x02, 770 DW_VIS_qualified = 0x03, 771 }); 772 773 dw!( 774 /// The encodings of the constants used in the `DW_AT_virtuality` attribute. 775 /// 776 /// See Section 7.11, Table 7.16. 777 DwVirtuality(u8) { 778 DW_VIRTUALITY_none = 0x00, 779 DW_VIRTUALITY_virtual = 0x01, 780 DW_VIRTUALITY_pure_virtual = 0x02, 781 }); 782 783 dw!( 784 /// The encodings of the constants used in the `DW_AT_language` attribute. 785 /// 786 /// See Section 7.12, Table 7.17. 787 DwLang(u16) { 788 DW_LANG_C89 = 0x0001, 789 DW_LANG_C = 0x0002, 790 DW_LANG_Ada83 = 0x0003, 791 DW_LANG_C_plus_plus = 0x0004, 792 DW_LANG_Cobol74 = 0x0005, 793 DW_LANG_Cobol85 = 0x0006, 794 DW_LANG_Fortran77 = 0x0007, 795 DW_LANG_Fortran90 = 0x0008, 796 DW_LANG_Pascal83 = 0x0009, 797 DW_LANG_Modula2 = 0x000a, 798 DW_LANG_Java = 0x000b, 799 DW_LANG_C99 = 0x000c, 800 DW_LANG_Ada95 = 0x000d, 801 DW_LANG_Fortran95 = 0x000e, 802 DW_LANG_PLI = 0x000f, 803 DW_LANG_ObjC = 0x0010, 804 DW_LANG_ObjC_plus_plus = 0x0011, 805 DW_LANG_UPC = 0x0012, 806 DW_LANG_D = 0x0013, 807 DW_LANG_Python = 0x0014, 808 DW_LANG_OpenCL = 0x0015, 809 DW_LANG_Go = 0x0016, 810 DW_LANG_Modula3 = 0x0017, 811 DW_LANG_Haskell = 0x0018, 812 DW_LANG_C_plus_plus_03 = 0x0019, 813 DW_LANG_C_plus_plus_11 = 0x001a, 814 DW_LANG_OCaml = 0x001b, 815 DW_LANG_Rust = 0x001c, 816 DW_LANG_C11 = 0x001d, 817 DW_LANG_Swift = 0x001e, 818 DW_LANG_Julia = 0x001f, 819 DW_LANG_Dylan = 0x0020, 820 DW_LANG_C_plus_plus_14 = 0x0021, 821 DW_LANG_Fortran03 = 0x0022, 822 DW_LANG_Fortran08 = 0x0023, 823 DW_LANG_RenderScript = 0x0024, 824 DW_LANG_BLISS = 0x0025, 825 DW_LANG_Kotlin = 0x0026, 826 DW_LANG_Zig = 0x0027, 827 DW_LANG_Crystal = 0x0028, 828 DW_LANG_C_plus_plus_17 = 0x002a, 829 DW_LANG_C_plus_plus_20 = 0x002b, 830 DW_LANG_C17 = 0x002c, 831 DW_LANG_Fortran18 = 0x002d, 832 DW_LANG_Ada2005 = 0x002e, 833 DW_LANG_Ada2012 = 0x002f, 834 835 DW_LANG_lo_user = 0x8000, 836 DW_LANG_hi_user = 0xffff, 837 838 DW_LANG_Mips_Assembler = 0x8001, 839 DW_LANG_GOOGLE_RenderScript = 0x8e57, 840 DW_LANG_SUN_Assembler = 0x9001, 841 DW_LANG_ALTIUM_Assembler = 0x9101, 842 DW_LANG_BORLAND_Delphi = 0xb000, 843 }); 844 845 impl DwLang { 846 /// Get the default DW_AT_lower_bound for this language. default_lower_bound(self) -> Option<usize>847 pub fn default_lower_bound(self) -> Option<usize> { 848 match self { 849 DW_LANG_C89 850 | DW_LANG_C 851 | DW_LANG_C_plus_plus 852 | DW_LANG_Java 853 | DW_LANG_C99 854 | DW_LANG_ObjC 855 | DW_LANG_ObjC_plus_plus 856 | DW_LANG_UPC 857 | DW_LANG_D 858 | DW_LANG_Python 859 | DW_LANG_OpenCL 860 | DW_LANG_Go 861 | DW_LANG_Haskell 862 | DW_LANG_C_plus_plus_03 863 | DW_LANG_C_plus_plus_11 864 | DW_LANG_OCaml 865 | DW_LANG_Rust 866 | DW_LANG_C11 867 | DW_LANG_Swift 868 | DW_LANG_Dylan 869 | DW_LANG_C_plus_plus_14 870 | DW_LANG_RenderScript 871 | DW_LANG_BLISS => Some(0), 872 DW_LANG_Ada83 | DW_LANG_Cobol74 | DW_LANG_Cobol85 | DW_LANG_Fortran77 873 | DW_LANG_Fortran90 | DW_LANG_Pascal83 | DW_LANG_Modula2 | DW_LANG_Ada95 874 | DW_LANG_Fortran95 | DW_LANG_PLI | DW_LANG_Modula3 | DW_LANG_Julia 875 | DW_LANG_Fortran03 | DW_LANG_Fortran08 => Some(1), 876 _ => None, 877 } 878 } 879 } 880 881 dw!( 882 /// The encodings of the constants used in the `DW_AT_address_class` attribute. 883 /// 884 /// There is only one value that is common to all target architectures. 885 /// See Section 7.13. 886 DwAddr(u64) { 887 DW_ADDR_none = 0x00, 888 }); 889 890 dw!( 891 /// The encodings of the constants used in the `DW_AT_identifier_case` attribute. 892 /// 893 /// See Section 7.14, Table 7.18. 894 DwId(u8) { 895 DW_ID_case_sensitive = 0x00, 896 DW_ID_up_case = 0x01, 897 DW_ID_down_case = 0x02, 898 DW_ID_case_insensitive = 0x03, 899 }); 900 901 dw!( 902 /// The encodings of the constants used in the `DW_AT_calling_convention` attribute. 903 /// 904 /// See Section 7.15, Table 7.19. 905 DwCc(u8) { 906 DW_CC_normal = 0x01, 907 DW_CC_program = 0x02, 908 DW_CC_nocall = 0x03, 909 DW_CC_pass_by_reference = 0x04, 910 DW_CC_pass_by_value = 0x05, 911 DW_CC_lo_user = 0x40, 912 DW_CC_hi_user = 0xff, 913 }); 914 915 dw!( 916 /// The encodings of the constants used in the `DW_AT_inline` attribute. 917 /// 918 /// See Section 7.16, Table 7.20. 919 DwInl(u8) { 920 DW_INL_not_inlined = 0x00, 921 DW_INL_inlined = 0x01, 922 DW_INL_declared_not_inlined = 0x02, 923 DW_INL_declared_inlined = 0x03, 924 }); 925 926 dw!( 927 /// The encodings of the constants used in the `DW_AT_ordering` attribute. 928 /// 929 /// See Section 7.17, Table 7.17. 930 DwOrd(u8) { 931 DW_ORD_row_major = 0x00, 932 DW_ORD_col_major = 0x01, 933 }); 934 935 dw!( 936 /// The encodings of the constants used in the `DW_AT_discr_list` attribute. 937 /// 938 /// See Section 7.18, Table 7.22. 939 DwDsc(u8) { 940 DW_DSC_label = 0x00, 941 DW_DSC_range = 0x01, 942 }); 943 944 dw!( 945 /// Name index attribute encodings. 946 /// 947 /// See Section 7.19, Table 7.23. 948 DwIdx(u16) { 949 DW_IDX_compile_unit = 1, 950 DW_IDX_type_unit = 2, 951 DW_IDX_die_offset = 3, 952 DW_IDX_parent = 4, 953 DW_IDX_type_hash = 5, 954 DW_IDX_lo_user = 0x2000, 955 DW_IDX_hi_user = 0x3fff, 956 }); 957 958 dw!( 959 /// The encodings of the constants used in the `DW_AT_defaulted` attribute. 960 /// 961 /// See Section 7.20, Table 7.24. 962 DwDefaulted(u8) { 963 DW_DEFAULTED_no = 0x00, 964 DW_DEFAULTED_in_class = 0x01, 965 DW_DEFAULTED_out_of_class = 0x02, 966 }); 967 968 dw!( 969 /// The encodings for the standard opcodes for line number information. 970 /// 971 /// See Section 7.22, Table 7.25. 972 DwLns(u8) { 973 DW_LNS_copy = 0x01, 974 DW_LNS_advance_pc = 0x02, 975 DW_LNS_advance_line = 0x03, 976 DW_LNS_set_file = 0x04, 977 DW_LNS_set_column = 0x05, 978 DW_LNS_negate_stmt = 0x06, 979 DW_LNS_set_basic_block = 0x07, 980 DW_LNS_const_add_pc = 0x08, 981 DW_LNS_fixed_advance_pc = 0x09, 982 DW_LNS_set_prologue_end = 0x0a, 983 DW_LNS_set_epilogue_begin = 0x0b, 984 DW_LNS_set_isa = 0x0c, 985 }); 986 987 dw!( 988 /// The encodings for the extended opcodes for line number information. 989 /// 990 /// See Section 7.22, Table 7.26. 991 DwLne(u8) { 992 DW_LNE_end_sequence = 0x01, 993 DW_LNE_set_address = 0x02, 994 DW_LNE_define_file = 0x03, 995 DW_LNE_set_discriminator = 0x04, 996 997 DW_LNE_lo_user = 0x80, 998 DW_LNE_hi_user = 0xff, 999 }); 1000 1001 dw!( 1002 /// The encodings for the line number header entry formats. 1003 /// 1004 /// See Section 7.22, Table 7.27. 1005 DwLnct(u16) { 1006 DW_LNCT_path = 0x1, 1007 DW_LNCT_directory_index = 0x2, 1008 DW_LNCT_timestamp = 0x3, 1009 DW_LNCT_size = 0x4, 1010 DW_LNCT_MD5 = 0x5, 1011 DW_LNCT_lo_user = 0x2000, 1012 DW_LNCT_hi_user = 0x3fff, 1013 }); 1014 1015 dw!( 1016 /// The encodings for macro information entry types. 1017 /// 1018 /// See Section 7.23, Table 7.28. 1019 DwMacro(u8) { 1020 DW_MACRO_define = 0x01, 1021 DW_MACRO_undef = 0x02, 1022 DW_MACRO_start_file = 0x03, 1023 DW_MACRO_end_file = 0x04, 1024 DW_MACRO_define_strp = 0x05, 1025 DW_MACRO_undef_strp = 0x06, 1026 DW_MACRO_import = 0x07, 1027 DW_MACRO_define_sup = 0x08, 1028 DW_MACRO_undef_sup = 0x09, 1029 DW_MACRO_import_sup = 0x0a, 1030 DW_MACRO_define_strx = 0x0b, 1031 DW_MACRO_undef_strx = 0x0c, 1032 DW_MACRO_lo_user = 0xe0, 1033 DW_MACRO_hi_user = 0xff, 1034 }); 1035 1036 dw!( 1037 /// Range list entry encoding values. 1038 /// 1039 /// See Section 7.25, Table 7.30. 1040 DwRle(u8) { 1041 DW_RLE_end_of_list = 0x00, 1042 DW_RLE_base_addressx = 0x01, 1043 DW_RLE_startx_endx = 0x02, 1044 DW_RLE_startx_length = 0x03, 1045 DW_RLE_offset_pair = 0x04, 1046 DW_RLE_base_address = 0x05, 1047 DW_RLE_start_end = 0x06, 1048 DW_RLE_start_length = 0x07, 1049 }); 1050 1051 dw!( 1052 /// The encodings for DWARF expression operations. 1053 /// 1054 /// See Section 7.7.1, Table 7.9. 1055 DwOp(u8) { 1056 DW_OP_addr = 0x03, 1057 DW_OP_deref = 0x06, 1058 DW_OP_const1u = 0x08, 1059 DW_OP_const1s = 0x09, 1060 DW_OP_const2u = 0x0a, 1061 DW_OP_const2s = 0x0b, 1062 DW_OP_const4u = 0x0c, 1063 DW_OP_const4s = 0x0d, 1064 DW_OP_const8u = 0x0e, 1065 DW_OP_const8s = 0x0f, 1066 DW_OP_constu = 0x10, 1067 DW_OP_consts = 0x11, 1068 DW_OP_dup = 0x12, 1069 DW_OP_drop = 0x13, 1070 DW_OP_over = 0x14, 1071 DW_OP_pick = 0x15, 1072 DW_OP_swap = 0x16, 1073 DW_OP_rot = 0x17, 1074 DW_OP_xderef = 0x18, 1075 DW_OP_abs = 0x19, 1076 DW_OP_and = 0x1a, 1077 DW_OP_div = 0x1b, 1078 DW_OP_minus = 0x1c, 1079 DW_OP_mod = 0x1d, 1080 DW_OP_mul = 0x1e, 1081 DW_OP_neg = 0x1f, 1082 DW_OP_not = 0x20, 1083 DW_OP_or = 0x21, 1084 DW_OP_plus = 0x22, 1085 DW_OP_plus_uconst = 0x23, 1086 DW_OP_shl = 0x24, 1087 DW_OP_shr = 0x25, 1088 DW_OP_shra = 0x26, 1089 DW_OP_xor = 0x27, 1090 DW_OP_bra = 0x28, 1091 DW_OP_eq = 0x29, 1092 DW_OP_ge = 0x2a, 1093 DW_OP_gt = 0x2b, 1094 DW_OP_le = 0x2c, 1095 DW_OP_lt = 0x2d, 1096 DW_OP_ne = 0x2e, 1097 DW_OP_skip = 0x2f, 1098 DW_OP_lit0 = 0x30, 1099 DW_OP_lit1 = 0x31, 1100 DW_OP_lit2 = 0x32, 1101 DW_OP_lit3 = 0x33, 1102 DW_OP_lit4 = 0x34, 1103 DW_OP_lit5 = 0x35, 1104 DW_OP_lit6 = 0x36, 1105 DW_OP_lit7 = 0x37, 1106 DW_OP_lit8 = 0x38, 1107 DW_OP_lit9 = 0x39, 1108 DW_OP_lit10 = 0x3a, 1109 DW_OP_lit11 = 0x3b, 1110 DW_OP_lit12 = 0x3c, 1111 DW_OP_lit13 = 0x3d, 1112 DW_OP_lit14 = 0x3e, 1113 DW_OP_lit15 = 0x3f, 1114 DW_OP_lit16 = 0x40, 1115 DW_OP_lit17 = 0x41, 1116 DW_OP_lit18 = 0x42, 1117 DW_OP_lit19 = 0x43, 1118 DW_OP_lit20 = 0x44, 1119 DW_OP_lit21 = 0x45, 1120 DW_OP_lit22 = 0x46, 1121 DW_OP_lit23 = 0x47, 1122 DW_OP_lit24 = 0x48, 1123 DW_OP_lit25 = 0x49, 1124 DW_OP_lit26 = 0x4a, 1125 DW_OP_lit27 = 0x4b, 1126 DW_OP_lit28 = 0x4c, 1127 DW_OP_lit29 = 0x4d, 1128 DW_OP_lit30 = 0x4e, 1129 DW_OP_lit31 = 0x4f, 1130 DW_OP_reg0 = 0x50, 1131 DW_OP_reg1 = 0x51, 1132 DW_OP_reg2 = 0x52, 1133 DW_OP_reg3 = 0x53, 1134 DW_OP_reg4 = 0x54, 1135 DW_OP_reg5 = 0x55, 1136 DW_OP_reg6 = 0x56, 1137 DW_OP_reg7 = 0x57, 1138 DW_OP_reg8 = 0x58, 1139 DW_OP_reg9 = 0x59, 1140 DW_OP_reg10 = 0x5a, 1141 DW_OP_reg11 = 0x5b, 1142 DW_OP_reg12 = 0x5c, 1143 DW_OP_reg13 = 0x5d, 1144 DW_OP_reg14 = 0x5e, 1145 DW_OP_reg15 = 0x5f, 1146 DW_OP_reg16 = 0x60, 1147 DW_OP_reg17 = 0x61, 1148 DW_OP_reg18 = 0x62, 1149 DW_OP_reg19 = 0x63, 1150 DW_OP_reg20 = 0x64, 1151 DW_OP_reg21 = 0x65, 1152 DW_OP_reg22 = 0x66, 1153 DW_OP_reg23 = 0x67, 1154 DW_OP_reg24 = 0x68, 1155 DW_OP_reg25 = 0x69, 1156 DW_OP_reg26 = 0x6a, 1157 DW_OP_reg27 = 0x6b, 1158 DW_OP_reg28 = 0x6c, 1159 DW_OP_reg29 = 0x6d, 1160 DW_OP_reg30 = 0x6e, 1161 DW_OP_reg31 = 0x6f, 1162 DW_OP_breg0 = 0x70, 1163 DW_OP_breg1 = 0x71, 1164 DW_OP_breg2 = 0x72, 1165 DW_OP_breg3 = 0x73, 1166 DW_OP_breg4 = 0x74, 1167 DW_OP_breg5 = 0x75, 1168 DW_OP_breg6 = 0x76, 1169 DW_OP_breg7 = 0x77, 1170 DW_OP_breg8 = 0x78, 1171 DW_OP_breg9 = 0x79, 1172 DW_OP_breg10 = 0x7a, 1173 DW_OP_breg11 = 0x7b, 1174 DW_OP_breg12 = 0x7c, 1175 DW_OP_breg13 = 0x7d, 1176 DW_OP_breg14 = 0x7e, 1177 DW_OP_breg15 = 0x7f, 1178 DW_OP_breg16 = 0x80, 1179 DW_OP_breg17 = 0x81, 1180 DW_OP_breg18 = 0x82, 1181 DW_OP_breg19 = 0x83, 1182 DW_OP_breg20 = 0x84, 1183 DW_OP_breg21 = 0x85, 1184 DW_OP_breg22 = 0x86, 1185 DW_OP_breg23 = 0x87, 1186 DW_OP_breg24 = 0x88, 1187 DW_OP_breg25 = 0x89, 1188 DW_OP_breg26 = 0x8a, 1189 DW_OP_breg27 = 0x8b, 1190 DW_OP_breg28 = 0x8c, 1191 DW_OP_breg29 = 0x8d, 1192 DW_OP_breg30 = 0x8e, 1193 DW_OP_breg31 = 0x8f, 1194 DW_OP_regx = 0x90, 1195 DW_OP_fbreg = 0x91, 1196 DW_OP_bregx = 0x92, 1197 DW_OP_piece = 0x93, 1198 DW_OP_deref_size = 0x94, 1199 DW_OP_xderef_size = 0x95, 1200 DW_OP_nop = 0x96, 1201 DW_OP_push_object_address = 0x97, 1202 DW_OP_call2 = 0x98, 1203 DW_OP_call4 = 0x99, 1204 DW_OP_call_ref = 0x9a, 1205 DW_OP_form_tls_address = 0x9b, 1206 DW_OP_call_frame_cfa = 0x9c, 1207 DW_OP_bit_piece = 0x9d, 1208 DW_OP_implicit_value = 0x9e, 1209 DW_OP_stack_value = 0x9f, 1210 DW_OP_implicit_pointer = 0xa0, 1211 DW_OP_addrx = 0xa1, 1212 DW_OP_constx = 0xa2, 1213 DW_OP_entry_value = 0xa3, 1214 DW_OP_const_type = 0xa4, 1215 DW_OP_regval_type = 0xa5, 1216 DW_OP_deref_type = 0xa6, 1217 DW_OP_xderef_type = 0xa7, 1218 DW_OP_convert = 0xa8, 1219 DW_OP_reinterpret = 0xa9, 1220 1221 // GNU extensions 1222 DW_OP_GNU_push_tls_address = 0xe0, 1223 DW_OP_GNU_implicit_pointer = 0xf2, 1224 DW_OP_GNU_entry_value = 0xf3, 1225 DW_OP_GNU_const_type = 0xf4, 1226 DW_OP_GNU_regval_type = 0xf5, 1227 DW_OP_GNU_deref_type = 0xf6, 1228 DW_OP_GNU_convert = 0xf7, 1229 DW_OP_GNU_reinterpret = 0xf9, 1230 DW_OP_GNU_parameter_ref = 0xfa, 1231 DW_OP_GNU_addr_index = 0xfb, 1232 DW_OP_GNU_const_index = 0xfc, 1233 1234 // Wasm extensions 1235 DW_OP_WASM_location = 0xed, 1236 }); 1237 1238 dw!( 1239 /// Pointer encoding used by `.eh_frame`. 1240 /// 1241 /// The four lower bits describe the 1242 /// format of the pointer, the upper four bits describe how the encoding should 1243 /// be applied. 1244 /// 1245 /// Defined in http://refspecs.linux-foundation.org/LSB_4.0.0/LSB-Core-generic/LSB-Core-generic/dwarfext.html 1246 DwEhPe(u8) { 1247 // Format of pointer encoding. 1248 1249 // "Unsigned value is encoded using the Little Endian Base 128" 1250 DW_EH_PE_uleb128 = 0x1, 1251 // "A 2 bytes unsigned value." 1252 DW_EH_PE_udata2 = 0x2, 1253 // "A 4 bytes unsigned value." 1254 DW_EH_PE_udata4 = 0x3, 1255 // "An 8 bytes unsigned value." 1256 DW_EH_PE_udata8 = 0x4, 1257 // "Signed value is encoded using the Little Endian Base 128" 1258 DW_EH_PE_sleb128 = 0x9, 1259 // "A 2 bytes signed value." 1260 DW_EH_PE_sdata2 = 0x0a, 1261 // "A 4 bytes signed value." 1262 DW_EH_PE_sdata4 = 0x0b, 1263 // "An 8 bytes signed value." 1264 DW_EH_PE_sdata8 = 0x0c, 1265 1266 // How the pointer encoding should be applied. 1267 1268 // `DW_EH_PE_pcrel` pointers are relative to their own location. 1269 DW_EH_PE_pcrel = 0x10, 1270 // "Value is relative to the beginning of the .text section." 1271 DW_EH_PE_textrel = 0x20, 1272 // "Value is relative to the beginning of the .got or .eh_frame_hdr section." 1273 DW_EH_PE_datarel = 0x30, 1274 // "Value is relative to the beginning of the function." 1275 DW_EH_PE_funcrel = 0x40, 1276 // "Value is aligned to an address unit sized boundary." 1277 DW_EH_PE_aligned = 0x50, 1278 1279 // This bit can be set for any of the above encoding applications. When set, 1280 // the encoded value is the address of the real pointer result, not the 1281 // pointer result itself. 1282 // 1283 // This isn't defined in the DWARF or the `.eh_frame` standards, but is 1284 // generated by both GNU/Linux and OSX tooling. 1285 DW_EH_PE_indirect = 0x80, 1286 1287 // These constants apply to both the lower and upper bits. 1288 1289 // "The Value is a literal pointer whose size is determined by the 1290 // architecture." 1291 DW_EH_PE_absptr = 0x0, 1292 // The absence of a pointer and encoding. 1293 DW_EH_PE_omit = 0xff, 1294 }); 1295 1296 const DW_EH_PE_FORMAT_MASK: u8 = 0b0000_1111; 1297 1298 // Ignores indirection bit. 1299 const DW_EH_PE_APPLICATION_MASK: u8 = 0b0111_0000; 1300 1301 impl DwEhPe { 1302 /// Get the pointer encoding's format. 1303 #[inline] format(self) -> DwEhPe1304 pub fn format(self) -> DwEhPe { 1305 DwEhPe(self.0 & DW_EH_PE_FORMAT_MASK) 1306 } 1307 1308 /// Get the pointer encoding's application. 1309 #[inline] application(self) -> DwEhPe1310 pub fn application(self) -> DwEhPe { 1311 DwEhPe(self.0 & DW_EH_PE_APPLICATION_MASK) 1312 } 1313 1314 /// Is this encoding the absent pointer encoding? 1315 #[inline] is_absent(self) -> bool1316 pub fn is_absent(self) -> bool { 1317 self == DW_EH_PE_omit 1318 } 1319 1320 /// Is this coding indirect? If so, its encoded value is the address of the 1321 /// real pointer result, not the pointer result itself. 1322 #[inline] is_indirect(self) -> bool1323 pub fn is_indirect(self) -> bool { 1324 self.0 & DW_EH_PE_indirect.0 != 0 1325 } 1326 1327 /// Is this a known, valid pointer encoding? is_valid_encoding(self) -> bool1328 pub fn is_valid_encoding(self) -> bool { 1329 if self.is_absent() { 1330 return true; 1331 } 1332 1333 match self.format() { 1334 DW_EH_PE_absptr | DW_EH_PE_uleb128 | DW_EH_PE_udata2 | DW_EH_PE_udata4 1335 | DW_EH_PE_udata8 | DW_EH_PE_sleb128 | DW_EH_PE_sdata2 | DW_EH_PE_sdata4 1336 | DW_EH_PE_sdata8 => {} 1337 _ => return false, 1338 } 1339 1340 match self.application() { 1341 DW_EH_PE_absptr | DW_EH_PE_pcrel | DW_EH_PE_textrel | DW_EH_PE_datarel 1342 | DW_EH_PE_funcrel | DW_EH_PE_aligned => {} 1343 _ => return false, 1344 } 1345 1346 true 1347 } 1348 } 1349 1350 #[cfg(test)] 1351 mod tests { 1352 use super::*; 1353 1354 #[test] test_dw_eh_pe_format()1355 fn test_dw_eh_pe_format() { 1356 let encoding = DwEhPe(DW_EH_PE_pcrel.0 | DW_EH_PE_uleb128.0); 1357 assert_eq!(encoding.format(), DW_EH_PE_uleb128); 1358 } 1359 1360 #[test] test_dw_eh_pe_application()1361 fn test_dw_eh_pe_application() { 1362 let encoding = DwEhPe(DW_EH_PE_pcrel.0 | DW_EH_PE_uleb128.0); 1363 assert_eq!(encoding.application(), DW_EH_PE_pcrel); 1364 } 1365 1366 #[test] test_dw_eh_pe_is_absent()1367 fn test_dw_eh_pe_is_absent() { 1368 assert_eq!(DW_EH_PE_absptr.is_absent(), false); 1369 assert_eq!(DW_EH_PE_omit.is_absent(), true); 1370 } 1371 1372 #[test] test_dw_eh_pe_is_valid_encoding_ok()1373 fn test_dw_eh_pe_is_valid_encoding_ok() { 1374 let encoding = DwEhPe(DW_EH_PE_uleb128.0 | DW_EH_PE_pcrel.0); 1375 assert!(encoding.is_valid_encoding()); 1376 assert!(DW_EH_PE_absptr.is_valid_encoding()); 1377 assert!(DW_EH_PE_omit.is_valid_encoding()); 1378 } 1379 1380 #[test] test_dw_eh_pe_is_valid_encoding_bad_format()1381 fn test_dw_eh_pe_is_valid_encoding_bad_format() { 1382 let encoding = DwEhPe((DW_EH_PE_sdata8.0 + 1) | DW_EH_PE_pcrel.0); 1383 assert_eq!(encoding.is_valid_encoding(), false); 1384 } 1385 1386 #[test] test_dw_eh_pe_is_valid_encoding_bad_application()1387 fn test_dw_eh_pe_is_valid_encoding_bad_application() { 1388 let encoding = DwEhPe(DW_EH_PE_sdata8.0 | (DW_EH_PE_aligned.0 + 1)); 1389 assert_eq!(encoding.is_valid_encoding(), false); 1390 } 1391 } 1392