Source file src/cmd/internal/dwarf/dwarf_defs.go

     1	// Copyright 2010 The Go Authors. All rights reserved.
     2	// Use of this source code is governed by a BSD-style
     3	// license that can be found in the LICENSE file.
     4	
     5	package dwarf
     6	
     7	// Cut, pasted, tr-and-awk'ed from tables in
     8	// http://dwarfstd.org/doc/Dwarf3.pdf
     9	
    10	// Table 18
    11	const (
    12		DW_TAG_array_type               = 0x01
    13		DW_TAG_class_type               = 0x02
    14		DW_TAG_entry_point              = 0x03
    15		DW_TAG_enumeration_type         = 0x04
    16		DW_TAG_formal_parameter         = 0x05
    17		DW_TAG_imported_declaration     = 0x08
    18		DW_TAG_label                    = 0x0a
    19		DW_TAG_lexical_block            = 0x0b
    20		DW_TAG_member                   = 0x0d
    21		DW_TAG_pointer_type             = 0x0f
    22		DW_TAG_reference_type           = 0x10
    23		DW_TAG_compile_unit             = 0x11
    24		DW_TAG_string_type              = 0x12
    25		DW_TAG_structure_type           = 0x13
    26		DW_TAG_subroutine_type          = 0x15
    27		DW_TAG_typedef                  = 0x16
    28		DW_TAG_union_type               = 0x17
    29		DW_TAG_unspecified_parameters   = 0x18
    30		DW_TAG_variant                  = 0x19
    31		DW_TAG_common_block             = 0x1a
    32		DW_TAG_common_inclusion         = 0x1b
    33		DW_TAG_inheritance              = 0x1c
    34		DW_TAG_inlined_subroutine       = 0x1d
    35		DW_TAG_module                   = 0x1e
    36		DW_TAG_ptr_to_member_type       = 0x1f
    37		DW_TAG_set_type                 = 0x20
    38		DW_TAG_subrange_type            = 0x21
    39		DW_TAG_with_stmt                = 0x22
    40		DW_TAG_access_declaration       = 0x23
    41		DW_TAG_base_type                = 0x24
    42		DW_TAG_catch_block              = 0x25
    43		DW_TAG_const_type               = 0x26
    44		DW_TAG_constant                 = 0x27
    45		DW_TAG_enumerator               = 0x28
    46		DW_TAG_file_type                = 0x29
    47		DW_TAG_friend                   = 0x2a
    48		DW_TAG_namelist                 = 0x2b
    49		DW_TAG_namelist_item            = 0x2c
    50		DW_TAG_packed_type              = 0x2d
    51		DW_TAG_subprogram               = 0x2e
    52		DW_TAG_template_type_parameter  = 0x2f
    53		DW_TAG_template_value_parameter = 0x30
    54		DW_TAG_thrown_type              = 0x31
    55		DW_TAG_try_block                = 0x32
    56		DW_TAG_variant_part             = 0x33
    57		DW_TAG_variable                 = 0x34
    58		DW_TAG_volatile_type            = 0x35
    59		// Dwarf3
    60		DW_TAG_dwarf_procedure  = 0x36
    61		DW_TAG_restrict_type    = 0x37
    62		DW_TAG_interface_type   = 0x38
    63		DW_TAG_namespace        = 0x39
    64		DW_TAG_imported_module  = 0x3a
    65		DW_TAG_unspecified_type = 0x3b
    66		DW_TAG_partial_unit     = 0x3c
    67		DW_TAG_imported_unit    = 0x3d
    68		DW_TAG_condition        = 0x3f
    69		DW_TAG_shared_type      = 0x40
    70		// Dwarf4
    71		DW_TAG_type_unit             = 0x41
    72		DW_TAG_rvalue_reference_type = 0x42
    73		DW_TAG_template_alias        = 0x43
    74	
    75		// User defined
    76		DW_TAG_lo_user = 0x4080
    77		DW_TAG_hi_user = 0xffff
    78	)
    79	
    80	// Table 19
    81	const (
    82		DW_CHILDREN_no  = 0x00
    83		DW_CHILDREN_yes = 0x01
    84	)
    85	
    86	// Not from the spec, but logically belongs here
    87	const (
    88		DW_CLS_ADDRESS = 0x01 + iota
    89		DW_CLS_BLOCK
    90		DW_CLS_CONSTANT
    91		DW_CLS_FLAG
    92		DW_CLS_PTR // lineptr, loclistptr, macptr, rangelistptr
    93		DW_CLS_REFERENCE
    94		DW_CLS_ADDRLOC
    95		DW_CLS_STRING
    96	
    97		// Go-specific internal hackery.
    98		DW_CLS_GO_TYPEREF
    99	)
   100	
   101	// Table 20
   102	const (
   103		DW_AT_sibling              = 0x01 // reference
   104		DW_AT_location             = 0x02 // block, loclistptr
   105		DW_AT_name                 = 0x03 // string
   106		DW_AT_ordering             = 0x09 // constant
   107		DW_AT_byte_size            = 0x0b // block, constant, reference
   108		DW_AT_bit_offset           = 0x0c // block, constant, reference
   109		DW_AT_bit_size             = 0x0d // block, constant, reference
   110		DW_AT_stmt_list            = 0x10 // lineptr
   111		DW_AT_low_pc               = 0x11 // address
   112		DW_AT_high_pc              = 0x12 // address
   113		DW_AT_language             = 0x13 // constant
   114		DW_AT_discr                = 0x15 // reference
   115		DW_AT_discr_value          = 0x16 // constant
   116		DW_AT_visibility           = 0x17 // constant
   117		DW_AT_import               = 0x18 // reference
   118		DW_AT_string_length        = 0x19 // block, loclistptr
   119		DW_AT_common_reference     = 0x1a // reference
   120		DW_AT_comp_dir             = 0x1b // string
   121		DW_AT_const_value          = 0x1c // block, constant, string
   122		DW_AT_containing_type      = 0x1d // reference
   123		DW_AT_default_value        = 0x1e // reference
   124		DW_AT_inline               = 0x20 // constant
   125		DW_AT_is_optional          = 0x21 // flag
   126		DW_AT_lower_bound          = 0x22 // block, constant, reference
   127		DW_AT_producer             = 0x25 // string
   128		DW_AT_prototyped           = 0x27 // flag
   129		DW_AT_return_addr          = 0x2a // block, loclistptr
   130		DW_AT_start_scope          = 0x2c // constant
   131		DW_AT_bit_stride           = 0x2e // constant
   132		DW_AT_upper_bound          = 0x2f // block, constant, reference
   133		DW_AT_abstract_origin      = 0x31 // reference
   134		DW_AT_accessibility        = 0x32 // constant
   135		DW_AT_address_class        = 0x33 // constant
   136		DW_AT_artificial           = 0x34 // flag
   137		DW_AT_base_types           = 0x35 // reference
   138		DW_AT_calling_convention   = 0x36 // constant
   139		DW_AT_count                = 0x37 // block, constant, reference
   140		DW_AT_data_member_location = 0x38 // block, constant, loclistptr
   141		DW_AT_decl_column          = 0x39 // constant
   142		DW_AT_decl_file            = 0x3a // constant
   143		DW_AT_decl_line            = 0x3b // constant
   144		DW_AT_declaration          = 0x3c // flag
   145		DW_AT_discr_list           = 0x3d // block
   146		DW_AT_encoding             = 0x3e // constant
   147		DW_AT_external             = 0x3f // flag
   148		DW_AT_frame_base           = 0x40 // block, loclistptr
   149		DW_AT_friend               = 0x41 // reference
   150		DW_AT_identifier_case      = 0x42 // constant
   151		DW_AT_macro_info           = 0x43 // macptr
   152		DW_AT_namelist_item        = 0x44 // block
   153		DW_AT_priority             = 0x45 // reference
   154		DW_AT_segment              = 0x46 // block, loclistptr
   155		DW_AT_specification        = 0x47 // reference
   156		DW_AT_static_link          = 0x48 // block, loclistptr
   157		DW_AT_type                 = 0x49 // reference
   158		DW_AT_use_location         = 0x4a // block, loclistptr
   159		DW_AT_variable_parameter   = 0x4b // flag
   160		DW_AT_virtuality           = 0x4c // constant
   161		DW_AT_vtable_elem_location = 0x4d // block, loclistptr
   162		// Dwarf3
   163		DW_AT_allocated      = 0x4e // block, constant, reference
   164		DW_AT_associated     = 0x4f // block, constant, reference
   165		DW_AT_data_location  = 0x50 // block
   166		DW_AT_byte_stride    = 0x51 // block, constant, reference
   167		DW_AT_entry_pc       = 0x52 // address
   168		DW_AT_use_UTF8       = 0x53 // flag
   169		DW_AT_extension      = 0x54 // reference
   170		DW_AT_ranges         = 0x55 // rangelistptr
   171		DW_AT_trampoline     = 0x56 // address, flag, reference, string
   172		DW_AT_call_column    = 0x57 // constant
   173		DW_AT_call_file      = 0x58 // constant
   174		DW_AT_call_line      = 0x59 // constant
   175		DW_AT_description    = 0x5a // string
   176		DW_AT_binary_scale   = 0x5b // constant
   177		DW_AT_decimal_scale  = 0x5c // constant
   178		DW_AT_small          = 0x5d // reference
   179		DW_AT_decimal_sign   = 0x5e // constant
   180		DW_AT_digit_count    = 0x5f // constant
   181		DW_AT_picture_string = 0x60 // string
   182		DW_AT_mutable        = 0x61 // flag
   183		DW_AT_threads_scaled = 0x62 // flag
   184		DW_AT_explicit       = 0x63 // flag
   185		DW_AT_object_pointer = 0x64 // reference
   186		DW_AT_endianity      = 0x65 // constant
   187		DW_AT_elemental      = 0x66 // flag
   188		DW_AT_pure           = 0x67 // flag
   189		DW_AT_recursive      = 0x68 // flag
   190	
   191		DW_AT_lo_user = 0x2000 // ---
   192		DW_AT_hi_user = 0x3fff // ---
   193	)
   194	
   195	// Table 21
   196	const (
   197		DW_FORM_addr      = 0x01 // address
   198		DW_FORM_block2    = 0x03 // block
   199		DW_FORM_block4    = 0x04 // block
   200		DW_FORM_data2     = 0x05 // constant
   201		DW_FORM_data4     = 0x06 // constant, lineptr, loclistptr, macptr, rangelistptr
   202		DW_FORM_data8     = 0x07 // constant, lineptr, loclistptr, macptr, rangelistptr
   203		DW_FORM_string    = 0x08 // string
   204		DW_FORM_block     = 0x09 // block
   205		DW_FORM_block1    = 0x0a // block
   206		DW_FORM_data1     = 0x0b // constant
   207		DW_FORM_flag      = 0x0c // flag
   208		DW_FORM_sdata     = 0x0d // constant
   209		DW_FORM_strp      = 0x0e // string
   210		DW_FORM_udata     = 0x0f // constant
   211		DW_FORM_ref_addr  = 0x10 // reference
   212		DW_FORM_ref1      = 0x11 // reference
   213		DW_FORM_ref2      = 0x12 // reference
   214		DW_FORM_ref4      = 0x13 // reference
   215		DW_FORM_ref8      = 0x14 // reference
   216		DW_FORM_ref_udata = 0x15 // reference
   217		DW_FORM_indirect  = 0x16 // (see Section 7.5.3)
   218		// Dwarf4
   219		DW_FORM_sec_offset   = 0x17 // lineptr, loclistptr, macptr, rangelistptr
   220		DW_FORM_exprloc      = 0x18 // exprloc
   221		DW_FORM_flag_present = 0x19 // flag
   222		DW_FORM_ref_sig8     = 0x20 // reference
   223		// Pseudo-form: expanded to data4 on IOS, udata elsewhere.
   224		DW_FORM_udata_pseudo = 0x99
   225	)
   226	
   227	// Table 24 (#operands, notes)
   228	const (
   229		DW_OP_addr                = 0x03 // 1 constant address (size target specific)
   230		DW_OP_deref               = 0x06 // 0
   231		DW_OP_const1u             = 0x08 // 1 1-byte constant
   232		DW_OP_const1s             = 0x09 // 1 1-byte constant
   233		DW_OP_const2u             = 0x0a // 1 2-byte constant
   234		DW_OP_const2s             = 0x0b // 1 2-byte constant
   235		DW_OP_const4u             = 0x0c // 1 4-byte constant
   236		DW_OP_const4s             = 0x0d // 1 4-byte constant
   237		DW_OP_const8u             = 0x0e // 1 8-byte constant
   238		DW_OP_const8s             = 0x0f // 1 8-byte constant
   239		DW_OP_constu              = 0x10 // 1 ULEB128 constant
   240		DW_OP_consts              = 0x11 // 1 SLEB128 constant
   241		DW_OP_dup                 = 0x12 // 0
   242		DW_OP_drop                = 0x13 // 0
   243		DW_OP_over                = 0x14 // 0
   244		DW_OP_pick                = 0x15 // 1 1-byte stack index
   245		DW_OP_swap                = 0x16 // 0
   246		DW_OP_rot                 = 0x17 // 0
   247		DW_OP_xderef              = 0x18 // 0
   248		DW_OP_abs                 = 0x19 // 0
   249		DW_OP_and                 = 0x1a // 0
   250		DW_OP_div                 = 0x1b // 0
   251		DW_OP_minus               = 0x1c // 0
   252		DW_OP_mod                 = 0x1d // 0
   253		DW_OP_mul                 = 0x1e // 0
   254		DW_OP_neg                 = 0x1f // 0
   255		DW_OP_not                 = 0x20 // 0
   256		DW_OP_or                  = 0x21 // 0
   257		DW_OP_plus                = 0x22 // 0
   258		DW_OP_plus_uconst         = 0x23 // 1 ULEB128 addend
   259		DW_OP_shl                 = 0x24 // 0
   260		DW_OP_shr                 = 0x25 // 0
   261		DW_OP_shra                = 0x26 // 0
   262		DW_OP_xor                 = 0x27 // 0
   263		DW_OP_skip                = 0x2f // 1 signed 2-byte constant
   264		DW_OP_bra                 = 0x28 // 1 signed 2-byte constant
   265		DW_OP_eq                  = 0x29 // 0
   266		DW_OP_ge                  = 0x2a // 0
   267		DW_OP_gt                  = 0x2b // 0
   268		DW_OP_le                  = 0x2c // 0
   269		DW_OP_lt                  = 0x2d // 0
   270		DW_OP_ne                  = 0x2e // 0
   271		DW_OP_lit0                = 0x30 // 0 ...
   272		DW_OP_lit31               = 0x4f // 0 literals 0..31 = (DW_OP_lit0 + literal)
   273		DW_OP_reg0                = 0x50 // 0 ..
   274		DW_OP_reg31               = 0x6f // 0 reg 0..31 = (DW_OP_reg0 + regnum)
   275		DW_OP_breg0               = 0x70 // 1 ...
   276		DW_OP_breg31              = 0x8f // 1 SLEB128 offset base register 0..31 = (DW_OP_breg0 + regnum)
   277		DW_OP_regx                = 0x90 // 1 ULEB128 register
   278		DW_OP_fbreg               = 0x91 // 1 SLEB128 offset
   279		DW_OP_bregx               = 0x92 // 2 ULEB128 register followed by SLEB128 offset
   280		DW_OP_piece               = 0x93 // 1 ULEB128 size of piece addressed
   281		DW_OP_deref_size          = 0x94 // 1 1-byte size of data retrieved
   282		DW_OP_xderef_size         = 0x95 // 1 1-byte size of data retrieved
   283		DW_OP_nop                 = 0x96 // 0
   284		DW_OP_push_object_address = 0x97 // 0
   285		DW_OP_call2               = 0x98 // 1 2-byte offset of DIE
   286		DW_OP_call4               = 0x99 // 1 4-byte offset of DIE
   287		DW_OP_call_ref            = 0x9a // 1 4- or 8-byte offset of DIE
   288		DW_OP_form_tls_address    = 0x9b // 0
   289		DW_OP_call_frame_cfa      = 0x9c // 0
   290		DW_OP_bit_piece           = 0x9d // 2
   291		DW_OP_lo_user             = 0xe0
   292		DW_OP_hi_user             = 0xff
   293	)
   294	
   295	// Table 25
   296	const (
   297		DW_ATE_address         = 0x01
   298		DW_ATE_boolean         = 0x02
   299		DW_ATE_complex_float   = 0x03
   300		DW_ATE_float           = 0x04
   301		DW_ATE_signed          = 0x05
   302		DW_ATE_signed_char     = 0x06
   303		DW_ATE_unsigned        = 0x07
   304		DW_ATE_unsigned_char   = 0x08
   305		DW_ATE_imaginary_float = 0x09
   306		DW_ATE_packed_decimal  = 0x0a
   307		DW_ATE_numeric_string  = 0x0b
   308		DW_ATE_edited          = 0x0c
   309		DW_ATE_signed_fixed    = 0x0d
   310		DW_ATE_unsigned_fixed  = 0x0e
   311		DW_ATE_decimal_float   = 0x0f
   312		DW_ATE_lo_user         = 0x80
   313		DW_ATE_hi_user         = 0xff
   314	)
   315	
   316	// Table 26
   317	const (
   318		DW_DS_unsigned           = 0x01
   319		DW_DS_leading_overpunch  = 0x02
   320		DW_DS_trailing_overpunch = 0x03
   321		DW_DS_leading_separate   = 0x04
   322		DW_DS_trailing_separate  = 0x05
   323	)
   324	
   325	// Table 27
   326	const (
   327		DW_END_default = 0x00
   328		DW_END_big     = 0x01
   329		DW_END_little  = 0x02
   330		DW_END_lo_user = 0x40
   331		DW_END_hi_user = 0xff
   332	)
   333	
   334	// Table 28
   335	const (
   336		DW_ACCESS_public    = 0x01
   337		DW_ACCESS_protected = 0x02
   338		DW_ACCESS_private   = 0x03
   339	)
   340	
   341	// Table 29
   342	const (
   343		DW_VIS_local     = 0x01
   344		DW_VIS_exported  = 0x02
   345		DW_VIS_qualified = 0x03
   346	)
   347	
   348	// Table 30
   349	const (
   350		DW_VIRTUALITY_none         = 0x00
   351		DW_VIRTUALITY_virtual      = 0x01
   352		DW_VIRTUALITY_pure_virtual = 0x02
   353	)
   354	
   355	// Table 31
   356	const (
   357		DW_LANG_C89         = 0x0001
   358		DW_LANG_C           = 0x0002
   359		DW_LANG_Ada83       = 0x0003
   360		DW_LANG_C_plus_plus = 0x0004
   361		DW_LANG_Cobol74     = 0x0005
   362		DW_LANG_Cobol85     = 0x0006
   363		DW_LANG_Fortran77   = 0x0007
   364		DW_LANG_Fortran90   = 0x0008
   365		DW_LANG_Pascal83    = 0x0009
   366		DW_LANG_Modula2     = 0x000a
   367		// Dwarf3
   368		DW_LANG_Java           = 0x000b
   369		DW_LANG_C99            = 0x000c
   370		DW_LANG_Ada95          = 0x000d
   371		DW_LANG_Fortran95      = 0x000e
   372		DW_LANG_PLI            = 0x000f
   373		DW_LANG_ObjC           = 0x0010
   374		DW_LANG_ObjC_plus_plus = 0x0011
   375		DW_LANG_UPC            = 0x0012
   376		DW_LANG_D              = 0x0013
   377		// Dwarf4
   378		DW_LANG_Python = 0x0014
   379		// Dwarf5
   380		DW_LANG_Go = 0x0016
   381	
   382		DW_LANG_lo_user = 0x8000
   383		DW_LANG_hi_user = 0xffff
   384	)
   385	
   386	// Table 32
   387	const (
   388		DW_ID_case_sensitive   = 0x00
   389		DW_ID_up_case          = 0x01
   390		DW_ID_down_case        = 0x02
   391		DW_ID_case_insensitive = 0x03
   392	)
   393	
   394	// Table 33
   395	const (
   396		DW_CC_normal  = 0x01
   397		DW_CC_program = 0x02
   398		DW_CC_nocall  = 0x03
   399		DW_CC_lo_user = 0x40
   400		DW_CC_hi_user = 0xff
   401	)
   402	
   403	// Table 34
   404	const (
   405		DW_INL_not_inlined          = 0x00
   406		DW_INL_inlined              = 0x01
   407		DW_INL_declared_not_inlined = 0x02
   408		DW_INL_declared_inlined     = 0x03
   409	)
   410	
   411	// Table 35
   412	const (
   413		DW_ORD_row_major = 0x00
   414		DW_ORD_col_major = 0x01
   415	)
   416	
   417	// Table 36
   418	const (
   419		DW_DSC_label = 0x00
   420		DW_DSC_range = 0x01
   421	)
   422	
   423	// Table 37
   424	const (
   425		DW_LNS_copy             = 0x01
   426		DW_LNS_advance_pc       = 0x02
   427		DW_LNS_advance_line     = 0x03
   428		DW_LNS_set_file         = 0x04
   429		DW_LNS_set_column       = 0x05
   430		DW_LNS_negate_stmt      = 0x06
   431		DW_LNS_set_basic_block  = 0x07
   432		DW_LNS_const_add_pc     = 0x08
   433		DW_LNS_fixed_advance_pc = 0x09
   434		// Dwarf3
   435		DW_LNS_set_prologue_end   = 0x0a
   436		DW_LNS_set_epilogue_begin = 0x0b
   437		DW_LNS_set_isa            = 0x0c
   438	)
   439	
   440	// Table 38
   441	const (
   442		DW_LNE_end_sequence = 0x01
   443		DW_LNE_set_address  = 0x02
   444		DW_LNE_define_file  = 0x03
   445		DW_LNE_lo_user      = 0x80
   446		DW_LNE_hi_user      = 0xff
   447	)
   448	
   449	// Table 39
   450	const (
   451		DW_MACINFO_define     = 0x01
   452		DW_MACINFO_undef      = 0x02
   453		DW_MACINFO_start_file = 0x03
   454		DW_MACINFO_end_file   = 0x04
   455		DW_MACINFO_vendor_ext = 0xff
   456	)
   457	
   458	// Table 40.
   459	const (
   460		// operand,...
   461		DW_CFA_nop              = 0x00
   462		DW_CFA_set_loc          = 0x01 // address
   463		DW_CFA_advance_loc1     = 0x02 // 1-byte delta
   464		DW_CFA_advance_loc2     = 0x03 // 2-byte delta
   465		DW_CFA_advance_loc4     = 0x04 // 4-byte delta
   466		DW_CFA_offset_extended  = 0x05 // ULEB128 register, ULEB128 offset
   467		DW_CFA_restore_extended = 0x06 // ULEB128 register
   468		DW_CFA_undefined        = 0x07 // ULEB128 register
   469		DW_CFA_same_value       = 0x08 // ULEB128 register
   470		DW_CFA_register         = 0x09 // ULEB128 register, ULEB128 register
   471		DW_CFA_remember_state   = 0x0a
   472		DW_CFA_restore_state    = 0x0b
   473	
   474		DW_CFA_def_cfa            = 0x0c // ULEB128 register, ULEB128 offset
   475		DW_CFA_def_cfa_register   = 0x0d // ULEB128 register
   476		DW_CFA_def_cfa_offset     = 0x0e // ULEB128 offset
   477		DW_CFA_def_cfa_expression = 0x0f // BLOCK
   478		DW_CFA_expression         = 0x10 // ULEB128 register, BLOCK
   479		DW_CFA_offset_extended_sf = 0x11 // ULEB128 register, SLEB128 offset
   480		DW_CFA_def_cfa_sf         = 0x12 // ULEB128 register, SLEB128 offset
   481		DW_CFA_def_cfa_offset_sf  = 0x13 // SLEB128 offset
   482		DW_CFA_val_offset         = 0x14 // ULEB128, ULEB128
   483		DW_CFA_val_offset_sf      = 0x15 // ULEB128, SLEB128
   484		DW_CFA_val_expression     = 0x16 // ULEB128, BLOCK
   485	
   486		DW_CFA_lo_user = 0x1c
   487		DW_CFA_hi_user = 0x3f
   488	
   489		// Opcodes that take an addend operand.
   490		DW_CFA_advance_loc = 0x1 << 6 // +delta
   491		DW_CFA_offset      = 0x2 << 6 // +register (ULEB128 offset)
   492		DW_CFA_restore     = 0x3 << 6 // +register
   493	)
   494	

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