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      1 /* Declarations and definitions of codes relating to the DWARF2 and
      2    DWARF3 symbolic debugging information formats.
      3    Copyright (C) 1992, 1993, 1995, 1996, 1997, 1999, 2000, 2001, 2002,
      4    2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
      5    Free Software Foundation, Inc.
      6 
      7    Written by Gary Funck (gary (at) intrepid.com) The Ada Joint Program
      8    Office (AJPO), Florida State University and Silicon Graphics Inc.
      9    provided support for this effort -- June 21, 1995.
     10 
     11    Derived from the DWARF 1 implementation written by Ron Guilmette
     12    (rfg (at) netcom.com), November 1990.
     13 
     14    This file is part of GCC.
     15 
     16    GCC is free software; you can redistribute it and/or modify it under
     17    the terms of the GNU General Public License as published by the Free
     18    Software Foundation; either version 3, or (at your option) any later
     19    version.
     20 
     21    GCC is distributed in the hope that it will be useful, but WITHOUT
     22    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
     23    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
     24    License for more details.
     25 
     26    Under Section 7 of GPL version 3, you are granted additional
     27    permissions described in the GCC Runtime Library Exception, version
     28    3.1, as published by the Free Software Foundation.
     29 
     30    You should have received a copy of the GNU General Public License and
     31    a copy of the GCC Runtime Library Exception along with this program;
     32    see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
     33    <http://www.gnu.org/licenses/>.  */
     34 
     35 /* This file is derived from the DWARF specification (a public document)
     36    Revision 2.0.0 (July 27, 1993) developed by the UNIX International
     37    Programming Languages Special Interest Group (UI/PLSIG) and distributed
     38    by UNIX International.  Copies of this specification are available from
     39    UNIX International, 20 Waterview Boulevard, Parsippany, NJ, 07054.
     40 
     41    This file also now contains definitions from the DWARF 3 specification
     42    published Dec 20, 2005, available from: http://dwarf.freestandards.org.  */
     43 
     44 #ifndef _DWARF2_H
     45 #define _DWARF2_H
     46 
     47 #define DW_TAG(name, value) , name = value
     48 #define DW_TAG_DUP(name, value) , name = value
     49 #define DW_FORM(name, value) , name = value
     50 #define DW_AT(name, value) , name = value
     51 #define DW_AT_DUP(name, value) , name = value
     52 #define DW_OP(name, value) , name = value
     53 #define DW_OP_DUP(name, value) , name = value
     54 #define DW_ATE(name, value) , name = value
     55 #define DW_ATE_DUP(name, value) , name = value
     56 #define DW_CFA(name, value) , name = value
     57 
     58 #define DW_FIRST_TAG(name, value) enum dwarf_tag { \
     59   name = value
     60 #define DW_END_TAG };
     61 #define DW_FIRST_FORM(name, value) enum dwarf_form { \
     62   name = value
     63 #define DW_END_FORM };
     64 #define DW_FIRST_AT(name, value) enum dwarf_attribute { \
     65   name = value
     66 #define DW_END_AT };
     67 #define DW_FIRST_OP(name, value) enum dwarf_location_atom { \
     68   name = value
     69 #define DW_END_OP };
     70 #define DW_FIRST_ATE(name, value) enum dwarf_type { \
     71   name = value
     72 #define DW_END_ATE };
     73 #define DW_FIRST_CFA(name, value) enum dwarf_call_frame_info { \
     74   name = value
     75 #define DW_END_CFA };
     76 
     77 #include "dwarf2.def"
     78 
     79 #undef DW_FIRST_TAG
     80 #undef DW_END_TAG
     81 #undef DW_FIRST_FORM
     82 #undef DW_END_FORM
     83 #undef DW_FIRST_AT
     84 #undef DW_END_AT
     85 #undef DW_FIRST_OP
     86 #undef DW_END_OP
     87 #undef DW_FIRST_ATE
     88 #undef DW_END_ATE
     89 #undef DW_FIRST_CFA
     90 #undef DW_END_CFA
     91 
     92 #undef DW_TAG
     93 #undef DW_TAG_DUP
     94 #undef DW_FORM
     95 #undef DW_AT
     96 #undef DW_AT_DUP
     97 #undef DW_OP
     98 #undef DW_OP_DUP
     99 #undef DW_ATE
    100 #undef DW_ATE_DUP
    101 #undef DW_CFA
    102 
    103 /* Flag that tells whether entry has a child or not.  */
    104 #define DW_children_no   0
    105 #define	DW_children_yes  1
    106 
    107 #define DW_AT_stride_size   DW_AT_bit_stride  /* Note: The use of DW_AT_stride_size is deprecated.  */
    108 #define DW_AT_stride   DW_AT_byte_stride  /* Note: The use of DW_AT_stride is deprecated.  */
    109 
    110 /* Decimal sign encodings.  */
    111 enum dwarf_decimal_sign_encoding
    112   {
    113     /* DWARF 3.  */
    114     DW_DS_unsigned = 0x01,
    115     DW_DS_leading_overpunch = 0x02,
    116     DW_DS_trailing_overpunch = 0x03,
    117     DW_DS_leading_separate = 0x04,
    118     DW_DS_trailing_separate = 0x05
    119   };
    120 
    121 /* Endianity encodings.  */
    122 enum dwarf_endianity_encoding
    123   {
    124     /* DWARF 3.  */
    125     DW_END_default = 0x00,
    126     DW_END_big = 0x01,
    127     DW_END_little = 0x02,
    128 
    129     DW_END_lo_user = 0x40,
    130     DW_END_hi_user = 0xff
    131   };
    132 
    133 /* Array ordering names and codes.  */
    134 enum dwarf_array_dim_ordering
    135   {
    136     DW_ORD_row_major = 0,
    137     DW_ORD_col_major = 1
    138   };
    139 
    140 /* Access attribute.  */
    141 enum dwarf_access_attribute
    142   {
    143     DW_ACCESS_public = 1,
    144     DW_ACCESS_protected = 2,
    145     DW_ACCESS_private = 3
    146   };
    147 
    148 /* Visibility.  */
    149 enum dwarf_visibility_attribute
    150   {
    151     DW_VIS_local = 1,
    152     DW_VIS_exported = 2,
    153     DW_VIS_qualified = 3
    154   };
    155 
    156 /* Virtuality.  */
    157 enum dwarf_virtuality_attribute
    158   {
    159     DW_VIRTUALITY_none = 0,
    160     DW_VIRTUALITY_virtual = 1,
    161     DW_VIRTUALITY_pure_virtual = 2
    162   };
    163 
    164 /* Case sensitivity.  */
    165 enum dwarf_id_case
    166   {
    167     DW_ID_case_sensitive = 0,
    168     DW_ID_up_case = 1,
    169     DW_ID_down_case = 2,
    170     DW_ID_case_insensitive = 3
    171   };
    172 
    173 /* Calling convention.  */
    174 enum dwarf_calling_convention
    175   {
    176     DW_CC_normal = 0x1,
    177     DW_CC_program = 0x2,
    178     DW_CC_nocall = 0x3,
    179 
    180     DW_CC_lo_user = 0x40,
    181     DW_CC_hi_user = 0xff,
    182 
    183     DW_CC_GNU_renesas_sh = 0x40,
    184     DW_CC_GNU_borland_fastcall_i386 = 0x41,
    185 
    186     /* This DW_CC_ value is not currently generated by any toolchain.  It is
    187        used internally to GDB to indicate OpenCL C functions that have been
    188        compiled with the IBM XL C for OpenCL compiler and use a non-platform
    189        calling convention for passing OpenCL C vector types.  This value may
    190        be changed freely as long as it does not conflict with any other DW_CC_
    191        value defined here.  */
    192     DW_CC_GDB_IBM_OpenCL = 0xff
    193   };
    194 
    195 /* Inline attribute.  */
    196 enum dwarf_inline_attribute
    197   {
    198     DW_INL_not_inlined = 0,
    199     DW_INL_inlined = 1,
    200     DW_INL_declared_not_inlined = 2,
    201     DW_INL_declared_inlined = 3
    202   };
    203 
    204 /* Discriminant lists.  */
    205 enum dwarf_discrim_list
    206   {
    207     DW_DSC_label = 0,
    208     DW_DSC_range = 1
    209   };
    210 
    211 /* Line number opcodes.  */
    212 enum dwarf_line_number_ops
    213   {
    214     DW_LNS_extended_op = 0,
    215     DW_LNS_copy = 1,
    216     DW_LNS_advance_pc = 2,
    217     DW_LNS_advance_line = 3,
    218     DW_LNS_set_file = 4,
    219     DW_LNS_set_column = 5,
    220     DW_LNS_negate_stmt = 6,
    221     DW_LNS_set_basic_block = 7,
    222     DW_LNS_const_add_pc = 8,
    223     DW_LNS_fixed_advance_pc = 9,
    224     /* DWARF 3.  */
    225     DW_LNS_set_prologue_end = 10,
    226     DW_LNS_set_epilogue_begin = 11,
    227     DW_LNS_set_isa = 12,
    228     /* Experimental DWARF 5 extensions.
    229        See http://wiki.dwarfstd.org/index.php?title=TwoLevelLineTables.  */
    230     DW_LNS_set_address_from_logical = 13, /* Actuals table only.  */
    231     DW_LNS_set_subprogram = 13,           /* Logicals table only.  */
    232     DW_LNS_inlined_call = 14,             /* Logicals table only.  */
    233     DW_LNS_pop_context = 15               /* Logicals table only.  */
    234   };
    235 
    236 /* Line number extended opcodes.  */
    237 enum dwarf_line_number_x_ops
    238   {
    239     DW_LNE_end_sequence = 1,
    240     DW_LNE_set_address = 2,
    241     DW_LNE_define_file = 3,
    242     DW_LNE_set_discriminator = 4,
    243     /* HP extensions.  */
    244     DW_LNE_HP_negate_is_UV_update      = 0x11,
    245     DW_LNE_HP_push_context             = 0x12,
    246     DW_LNE_HP_pop_context              = 0x13,
    247     DW_LNE_HP_set_file_line_column     = 0x14,
    248     DW_LNE_HP_set_routine_name         = 0x15,
    249     DW_LNE_HP_set_sequence             = 0x16,
    250     DW_LNE_HP_negate_post_semantics    = 0x17,
    251     DW_LNE_HP_negate_function_exit     = 0x18,
    252     DW_LNE_HP_negate_front_end_logical = 0x19,
    253     DW_LNE_HP_define_proc              = 0x20,
    254     DW_LNE_HP_source_file_correlation  = 0x80,
    255 
    256     DW_LNE_lo_user = 0x80,
    257     DW_LNE_hi_user = 0xff
    258   };
    259 
    260 /* Sub-opcodes for DW_LNE_HP_source_file_correlation.  */
    261 enum dwarf_line_number_hp_sfc_ops
    262   {
    263     DW_LNE_HP_SFC_formfeed = 1,
    264     DW_LNE_HP_SFC_set_listing_line = 2,
    265     DW_LNE_HP_SFC_associate = 3
    266   };
    267 
    268 /* Type codes for location list entries.
    269    Extension for Fission.  See http://gcc.gnu.org/wiki/DebugFission.  */
    270 
    271 enum dwarf_location_list_entry_type
    272   {
    273     DW_LLE_GNU_end_of_list_entry = 0,
    274     DW_LLE_GNU_base_address_selection_entry = 1,
    275     DW_LLE_GNU_start_end_entry = 2,
    276     DW_LLE_GNU_start_length_entry = 3
    277   };
    278 
    279 /* Type codes for line number program content descriptors (DWARF 5).  */
    280 
    281 enum dwarf_line_number_content_type
    282   {
    283     DW_LNCT_path = 1,
    284     DW_LNCT_directory_index = 2,
    285     DW_LNCT_timestamp = 3,
    286     DW_LNCT_size = 4,
    287     DW_LNCT_MD5 = 5,
    288     /* Experimental DWARF 5 extensions.
    289        See http://wiki.dwarfstd.org/index.php?title=TwoLevelLineTables.  */
    290     DW_LNCT_subprogram_name = 6,
    291     DW_LNCT_decl_file = 7,
    292     DW_LNCT_decl_line = 8
    293   };
    294 
    295 #define DW_CIE_ID	  0xffffffff
    296 #define DW64_CIE_ID	  0xffffffffffffffffULL
    297 #define DW_CIE_VERSION	  1
    298 
    299 #define DW_CFA_extended   0
    300 
    301 #define DW_CHILDREN_no		     0x00
    302 #define DW_CHILDREN_yes		     0x01
    303 
    304 #define DW_ADDR_none		0
    305 
    306 /* Source language names and codes.  */
    307 enum dwarf_source_language
    308   {
    309     DW_LANG_C89 = 0x0001,
    310     DW_LANG_C = 0x0002,
    311     DW_LANG_Ada83 = 0x0003,
    312     DW_LANG_C_plus_plus = 0x0004,
    313     DW_LANG_Cobol74 = 0x0005,
    314     DW_LANG_Cobol85 = 0x0006,
    315     DW_LANG_Fortran77 = 0x0007,
    316     DW_LANG_Fortran90 = 0x0008,
    317     DW_LANG_Pascal83 = 0x0009,
    318     DW_LANG_Modula2 = 0x000a,
    319     /* DWARF 3.  */
    320     DW_LANG_Java = 0x000b,
    321     DW_LANG_C99 = 0x000c,
    322     DW_LANG_Ada95 = 0x000d,
    323     DW_LANG_Fortran95 = 0x000e,
    324     DW_LANG_PLI = 0x000f,
    325     DW_LANG_ObjC = 0x0010,
    326     DW_LANG_ObjC_plus_plus = 0x0011,
    327     DW_LANG_UPC = 0x0012,
    328     DW_LANG_D = 0x0013,
    329     /* DWARF 4.  */
    330     DW_LANG_Python = 0x0014,
    331     /* DWARF 5.  */
    332     DW_LANG_Go = 0x0016,
    333 
    334     DW_LANG_C_plus_plus_11 = 0x001a, /* dwarf5.20141029.pdf DRAFT */
    335     DW_LANG_C11 = 0x001d,
    336     DW_LANG_C_plus_plus_14 = 0x0021,
    337     DW_LANG_Fortran03 = 0x0022,
    338     DW_LANG_Fortran08 = 0x0023,
    339 
    340     DW_LANG_lo_user = 0x8000,	/* Implementation-defined range start.  */
    341     DW_LANG_hi_user = 0xffff,	/* Implementation-defined range start.  */
    342 
    343     /* MIPS.  */
    344     DW_LANG_Mips_Assembler = 0x8001,
    345     /* UPC.  */
    346     DW_LANG_Upc = 0x8765,
    347     /* HP extensions.  */
    348     DW_LANG_HP_Bliss     = 0x8003,
    349     DW_LANG_HP_Basic91   = 0x8004,
    350     DW_LANG_HP_Pascal91  = 0x8005,
    351     DW_LANG_HP_IMacro    = 0x8006,
    352     DW_LANG_HP_Assembler = 0x8007
    353   };
    354 
    355 /* Names and codes for macro information.  */
    356 enum dwarf_macinfo_record_type
    357   {
    358     DW_MACINFO_define = 1,
    359     DW_MACINFO_undef = 2,
    360     DW_MACINFO_start_file = 3,
    361     DW_MACINFO_end_file = 4,
    362     DW_MACINFO_vendor_ext = 255
    363   };
    364 
    365 /* Names and codes for new style macro information.  */
    366 enum dwarf_macro_record_type
    367   {
    368     DW_MACRO_GNU_define = 1,
    369     DW_MACRO_GNU_undef = 2,
    370     DW_MACRO_GNU_start_file = 3,
    371     DW_MACRO_GNU_end_file = 4,
    372     DW_MACRO_GNU_define_indirect = 5,
    373     DW_MACRO_GNU_undef_indirect = 6,
    374     DW_MACRO_GNU_transparent_include = 7,
    375     /* Extensions for DWZ multifile.
    376        See http://www.dwarfstd.org/ShowIssue.php?issue=120604.1&type=open .  */
    377     DW_MACRO_GNU_define_indirect_alt = 8,
    378     DW_MACRO_GNU_undef_indirect_alt = 9,
    379     DW_MACRO_GNU_transparent_include_alt = 10,
    380     DW_MACRO_GNU_lo_user = 0xe0,
    381     DW_MACRO_GNU_hi_user = 0xff
    382   };
    383 
    384 /* @@@ For use with GNU frame unwind information.  */
    386 
    387 #define DW_EH_PE_absptr		0x00
    388 #define DW_EH_PE_omit		0xff
    389 
    390 #define DW_EH_PE_uleb128	0x01
    391 #define DW_EH_PE_udata2		0x02
    392 #define DW_EH_PE_udata4		0x03
    393 #define DW_EH_PE_udata8		0x04
    394 #define DW_EH_PE_sleb128	0x09
    395 #define DW_EH_PE_sdata2		0x0A
    396 #define DW_EH_PE_sdata4		0x0B
    397 #define DW_EH_PE_sdata8		0x0C
    398 #define DW_EH_PE_signed		0x08
    399 
    400 #define DW_EH_PE_pcrel		0x10
    401 #define DW_EH_PE_textrel	0x20
    402 #define DW_EH_PE_datarel	0x30
    403 #define DW_EH_PE_funcrel	0x40
    404 #define DW_EH_PE_aligned	0x50
    405 
    406 #define DW_EH_PE_indirect	0x80
    407 
    408 /* Codes for the debug sections in a dwarf package (.dwp) file.
    409    Extensions for Fission.  See http://gcc.gnu.org/wiki/DebugFissionDWP.  */
    410 enum dwarf_sect
    411   {
    412     DW_SECT_INFO = 1,
    413     DW_SECT_TYPES = 2,
    414     DW_SECT_ABBREV = 3,
    415     DW_SECT_LINE = 4,
    416     DW_SECT_LOC = 5,
    417     DW_SECT_STR_OFFSETS = 6,
    418     DW_SECT_MACINFO = 7,
    419     DW_SECT_MACRO = 8,
    420     DW_SECT_MAX = 8
    421   };
    422 
    423 #ifdef __cplusplus
    424 extern "C" {
    425 #endif /* __cplusplus */
    426 
    427 /* Return the name of a DW_TAG_ constant, or NULL if the value is not
    428    recognized.  */
    429 extern const char *get_DW_TAG_name (unsigned int tag);
    430 
    431 /* Return the name of a DW_AT_ constant, or NULL if the value is not
    432    recognized.  */
    433 extern const char *get_DW_AT_name (unsigned int attr);
    434 
    435 /* Return the name of a DW_FORM_ constant, or NULL if the value is not
    436    recognized.  */
    437 extern const char *get_DW_FORM_name (unsigned int form);
    438 
    439 /* Return the name of a DW_OP_ constant, or NULL if the value is not
    440    recognized.  */
    441 extern const char *get_DW_OP_name (unsigned int op);
    442 
    443 /* Return the name of a DW_ATE_ constant, or NULL if the value is not
    444    recognized.  */
    445 extern const char *get_DW_ATE_name (unsigned int enc);
    446 
    447 /* Return the name of a DW_CFA_ constant, or NULL if the value is not
    448    recognized.  */
    449 extern const char *get_DW_CFA_name (unsigned int opc);
    450 
    451 #ifdef __cplusplus
    452 }
    453 #endif /* __cplusplus */
    454 
    455 #endif /* _DWARF2_H */
    456