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      1 // -*- mode: c++ -*-
      2 
      3 // Copyright (c) 2010 Google Inc. All Rights Reserved.
      4 //
      5 // Redistribution and use in source and binary forms, with or without
      6 // modification, are permitted provided that the following conditions are
      7 // met:
      8 //
      9 //     * Redistributions of source code must retain the above copyright
     10 // notice, this list of conditions and the following disclaimer.
     11 //     * Redistributions in binary form must reproduce the above
     12 // copyright notice, this list of conditions and the following disclaimer
     13 // in the documentation and/or other materials provided with the
     14 // distribution.
     15 //     * Neither the name of Google Inc. nor the names of its
     16 // contributors may be used to endorse or promote products derived from
     17 // this software without specific prior written permission.
     18 //
     19 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     20 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     21 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     22 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     23 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     24 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     25 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     27 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     29 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30 
     31 #ifndef COMMON_DWARF_DWARF2ENUMS_H__
     32 #define COMMON_DWARF_DWARF2ENUMS_H__
     33 
     34 namespace dwarf2reader {
     35 
     36 // These enums do not follow the google3 style only because they are
     37 // known universally (specs, other implementations) by the names in
     38 // exactly this capitalization.
     39 // Tag names and codes.
     40 enum DwarfTag {
     41   DW_TAG_padding = 0x00,
     42   DW_TAG_array_type = 0x01,
     43   DW_TAG_class_type = 0x02,
     44   DW_TAG_entry_point = 0x03,
     45   DW_TAG_enumeration_type = 0x04,
     46   DW_TAG_formal_parameter = 0x05,
     47   DW_TAG_imported_declaration = 0x08,
     48   DW_TAG_label = 0x0a,
     49   DW_TAG_lexical_block = 0x0b,
     50   DW_TAG_member = 0x0d,
     51   DW_TAG_pointer_type = 0x0f,
     52   DW_TAG_reference_type = 0x10,
     53   DW_TAG_compile_unit = 0x11,
     54   DW_TAG_string_type = 0x12,
     55   DW_TAG_structure_type = 0x13,
     56   DW_TAG_subroutine_type = 0x15,
     57   DW_TAG_typedef = 0x16,
     58   DW_TAG_union_type = 0x17,
     59   DW_TAG_unspecified_parameters = 0x18,
     60   DW_TAG_variant = 0x19,
     61   DW_TAG_common_block = 0x1a,
     62   DW_TAG_common_inclusion = 0x1b,
     63   DW_TAG_inheritance = 0x1c,
     64   DW_TAG_inlined_subroutine = 0x1d,
     65   DW_TAG_module = 0x1e,
     66   DW_TAG_ptr_to_member_type = 0x1f,
     67   DW_TAG_set_type = 0x20,
     68   DW_TAG_subrange_type = 0x21,
     69   DW_TAG_with_stmt = 0x22,
     70   DW_TAG_access_declaration = 0x23,
     71   DW_TAG_base_type = 0x24,
     72   DW_TAG_catch_block = 0x25,
     73   DW_TAG_const_type = 0x26,
     74   DW_TAG_constant = 0x27,
     75   DW_TAG_enumerator = 0x28,
     76   DW_TAG_file_type = 0x29,
     77   DW_TAG_friend = 0x2a,
     78   DW_TAG_namelist = 0x2b,
     79   DW_TAG_namelist_item = 0x2c,
     80   DW_TAG_packed_type = 0x2d,
     81   DW_TAG_subprogram = 0x2e,
     82   DW_TAG_template_type_param = 0x2f,
     83   DW_TAG_template_value_param = 0x30,
     84   DW_TAG_thrown_type = 0x31,
     85   DW_TAG_try_block = 0x32,
     86   DW_TAG_variant_part = 0x33,
     87   DW_TAG_variable = 0x34,
     88   DW_TAG_volatile_type = 0x35,
     89   // DWARF 3.
     90   DW_TAG_dwarf_procedure = 0x36,
     91   DW_TAG_restrict_type = 0x37,
     92   DW_TAG_interface_type = 0x38,
     93   DW_TAG_namespace = 0x39,
     94   DW_TAG_imported_module = 0x3a,
     95   DW_TAG_unspecified_type = 0x3b,
     96   DW_TAG_partial_unit = 0x3c,
     97   DW_TAG_imported_unit = 0x3d,
     98   // SGI/MIPS Extensions.
     99   DW_TAG_MIPS_loop = 0x4081,
    100   // HP extensions.  See:
    101   // ftp://ftp.hp.com/pub/lang/tools/WDB/wdb-4.0.tar.gz
    102   DW_TAG_HP_array_descriptor = 0x4090,
    103   // GNU extensions.
    104   DW_TAG_format_label = 0x4101,  // For FORTRAN 77 and Fortran 90.
    105   DW_TAG_function_template = 0x4102,  // For C++.
    106   DW_TAG_class_template = 0x4103,  // For C++.
    107   DW_TAG_GNU_BINCL = 0x4104,
    108   DW_TAG_GNU_EINCL = 0x4105,
    109   // Extensions for UPC.  See: http://upc.gwu.edu/~upc.
    110   DW_TAG_upc_shared_type = 0x8765,
    111   DW_TAG_upc_strict_type = 0x8766,
    112   DW_TAG_upc_relaxed_type = 0x8767,
    113   // PGI (STMicroelectronics) extensions.  No documentation available.
    114   DW_TAG_PGI_kanji_type      = 0xA000,
    115   DW_TAG_PGI_interface_block = 0xA020
    116 };
    117 
    118 
    119 enum DwarfHasChild {
    120   DW_children_no = 0,
    121   DW_children_yes = 1
    122 };
    123 
    124 // Form names and codes.
    125 enum DwarfForm {
    126   DW_FORM_addr = 0x01,
    127   DW_FORM_block2 = 0x03,
    128   DW_FORM_block4 = 0x04,
    129   DW_FORM_data2 = 0x05,
    130   DW_FORM_data4 = 0x06,
    131   DW_FORM_data8 = 0x07,
    132   DW_FORM_string = 0x08,
    133   DW_FORM_block = 0x09,
    134   DW_FORM_block1 = 0x0a,
    135   DW_FORM_data1 = 0x0b,
    136   DW_FORM_flag = 0x0c,
    137   DW_FORM_sdata = 0x0d,
    138   DW_FORM_strp = 0x0e,
    139   DW_FORM_udata = 0x0f,
    140   DW_FORM_ref_addr = 0x10,
    141   DW_FORM_ref1 = 0x11,
    142   DW_FORM_ref2 = 0x12,
    143   DW_FORM_ref4 = 0x13,
    144   DW_FORM_ref8 = 0x14,
    145   DW_FORM_ref_udata = 0x15,
    146   DW_FORM_indirect = 0x16,
    147 
    148   // Added in DWARF 4:
    149   DW_FORM_sec_offset = 0x17,
    150   DW_FORM_exprloc = 0x18,
    151   DW_FORM_flag_present = 0x19,
    152   DW_FORM_ref_sig8 = 0x20
    153 };
    154 
    155 // Attribute names and codes
    156 enum DwarfAttribute {
    157   DW_AT_sibling = 0x01,
    158   DW_AT_location = 0x02,
    159   DW_AT_name = 0x03,
    160   DW_AT_ordering = 0x09,
    161   DW_AT_subscr_data = 0x0a,
    162   DW_AT_byte_size = 0x0b,
    163   DW_AT_bit_offset = 0x0c,
    164   DW_AT_bit_size = 0x0d,
    165   DW_AT_element_list = 0x0f,
    166   DW_AT_stmt_list = 0x10,
    167   DW_AT_low_pc = 0x11,
    168   DW_AT_high_pc = 0x12,
    169   DW_AT_language = 0x13,
    170   DW_AT_member = 0x14,
    171   DW_AT_discr = 0x15,
    172   DW_AT_discr_value = 0x16,
    173   DW_AT_visibility = 0x17,
    174   DW_AT_import = 0x18,
    175   DW_AT_string_length = 0x19,
    176   DW_AT_common_reference = 0x1a,
    177   DW_AT_comp_dir = 0x1b,
    178   DW_AT_const_value = 0x1c,
    179   DW_AT_containing_type = 0x1d,
    180   DW_AT_default_value = 0x1e,
    181   DW_AT_inline = 0x20,
    182   DW_AT_is_optional = 0x21,
    183   DW_AT_lower_bound = 0x22,
    184   DW_AT_producer = 0x25,
    185   DW_AT_prototyped = 0x27,
    186   DW_AT_return_addr = 0x2a,
    187   DW_AT_start_scope = 0x2c,
    188   DW_AT_stride_size = 0x2e,
    189   DW_AT_upper_bound = 0x2f,
    190   DW_AT_abstract_origin = 0x31,
    191   DW_AT_accessibility = 0x32,
    192   DW_AT_address_class = 0x33,
    193   DW_AT_artificial = 0x34,
    194   DW_AT_base_types = 0x35,
    195   DW_AT_calling_convention = 0x36,
    196   DW_AT_count = 0x37,
    197   DW_AT_data_member_location = 0x38,
    198   DW_AT_decl_column = 0x39,
    199   DW_AT_decl_file = 0x3a,
    200   DW_AT_decl_line = 0x3b,
    201   DW_AT_declaration = 0x3c,
    202   DW_AT_discr_list = 0x3d,
    203   DW_AT_encoding = 0x3e,
    204   DW_AT_external = 0x3f,
    205   DW_AT_frame_base = 0x40,
    206   DW_AT_friend = 0x41,
    207   DW_AT_identifier_case = 0x42,
    208   DW_AT_macro_info = 0x43,
    209   DW_AT_namelist_items = 0x44,
    210   DW_AT_priority = 0x45,
    211   DW_AT_segment = 0x46,
    212   DW_AT_specification = 0x47,
    213   DW_AT_static_link = 0x48,
    214   DW_AT_type = 0x49,
    215   DW_AT_use_location = 0x4a,
    216   DW_AT_variable_parameter = 0x4b,
    217   DW_AT_virtuality = 0x4c,
    218   DW_AT_vtable_elem_location = 0x4d,
    219   // DWARF 3 values.
    220   DW_AT_allocated     = 0x4e,
    221   DW_AT_associated    = 0x4f,
    222   DW_AT_data_location = 0x50,
    223   DW_AT_stride        = 0x51,
    224   DW_AT_entry_pc      = 0x52,
    225   DW_AT_use_UTF8      = 0x53,
    226   DW_AT_extension     = 0x54,
    227   DW_AT_ranges        = 0x55,
    228   DW_AT_trampoline    = 0x56,
    229   DW_AT_call_column   = 0x57,
    230   DW_AT_call_file     = 0x58,
    231   DW_AT_call_line     = 0x59,
    232   // SGI/MIPS extensions.
    233   DW_AT_MIPS_fde = 0x2001,
    234   DW_AT_MIPS_loop_begin = 0x2002,
    235   DW_AT_MIPS_tail_loop_begin = 0x2003,
    236   DW_AT_MIPS_epilog_begin = 0x2004,
    237   DW_AT_MIPS_loop_unroll_factor = 0x2005,
    238   DW_AT_MIPS_software_pipeline_depth = 0x2006,
    239   DW_AT_MIPS_linkage_name = 0x2007,
    240   DW_AT_MIPS_stride = 0x2008,
    241   DW_AT_MIPS_abstract_name = 0x2009,
    242   DW_AT_MIPS_clone_origin = 0x200a,
    243   DW_AT_MIPS_has_inlines = 0x200b,
    244   // HP extensions.
    245   DW_AT_HP_block_index         = 0x2000,
    246   DW_AT_HP_unmodifiable        = 0x2001,  // Same as DW_AT_MIPS_fde.
    247   DW_AT_HP_actuals_stmt_list   = 0x2010,
    248   DW_AT_HP_proc_per_section    = 0x2011,
    249   DW_AT_HP_raw_data_ptr        = 0x2012,
    250   DW_AT_HP_pass_by_reference   = 0x2013,
    251   DW_AT_HP_opt_level           = 0x2014,
    252   DW_AT_HP_prof_version_id     = 0x2015,
    253   DW_AT_HP_opt_flags           = 0x2016,
    254   DW_AT_HP_cold_region_low_pc  = 0x2017,
    255   DW_AT_HP_cold_region_high_pc = 0x2018,
    256   DW_AT_HP_all_variables_modifiable = 0x2019,
    257   DW_AT_HP_linkage_name        = 0x201a,
    258   DW_AT_HP_prof_flags          = 0x201b,  // In comp unit of procs_info for -g.
    259   // GNU extensions.
    260   DW_AT_sf_names   = 0x2101,
    261   DW_AT_src_info   = 0x2102,
    262   DW_AT_mac_info   = 0x2103,
    263   DW_AT_src_coords = 0x2104,
    264   DW_AT_body_begin = 0x2105,
    265   DW_AT_body_end   = 0x2106,
    266   DW_AT_GNU_vector = 0x2107,
    267   // VMS extensions.
    268   DW_AT_VMS_rtnbeg_pd_address = 0x2201,
    269   // UPC extension.
    270   DW_AT_upc_threads_scaled = 0x3210,
    271   // PGI (STMicroelectronics) extensions.
    272   DW_AT_PGI_lbase    = 0x3a00,
    273   DW_AT_PGI_soffset  = 0x3a01,
    274   DW_AT_PGI_lstride  = 0x3a02
    275 };
    276 
    277 
    278 // Line number opcodes.
    279 enum DwarfLineNumberOps {
    280   DW_LNS_extended_op = 0,
    281   DW_LNS_copy = 1,
    282   DW_LNS_advance_pc = 2,
    283   DW_LNS_advance_line = 3,
    284   DW_LNS_set_file = 4,
    285   DW_LNS_set_column = 5,
    286   DW_LNS_negate_stmt = 6,
    287   DW_LNS_set_basic_block = 7,
    288   DW_LNS_const_add_pc = 8,
    289   DW_LNS_fixed_advance_pc = 9,
    290   // DWARF 3.
    291   DW_LNS_set_prologue_end = 10,
    292   DW_LNS_set_epilogue_begin = 11,
    293   DW_LNS_set_isa = 12
    294 };
    295 
    296 // Line number extended opcodes.
    297 enum DwarfLineNumberExtendedOps {
    298   DW_LNE_end_sequence = 1,
    299   DW_LNE_set_address = 2,
    300   DW_LNE_define_file = 3,
    301   // HP extensions.
    302   DW_LNE_HP_negate_is_UV_update      = 0x11,
    303   DW_LNE_HP_push_context             = 0x12,
    304   DW_LNE_HP_pop_context              = 0x13,
    305   DW_LNE_HP_set_file_line_column     = 0x14,
    306   DW_LNE_HP_set_routine_name         = 0x15,
    307   DW_LNE_HP_set_sequence             = 0x16,
    308   DW_LNE_HP_negate_post_semantics    = 0x17,
    309   DW_LNE_HP_negate_function_exit     = 0x18,
    310   DW_LNE_HP_negate_front_end_logical = 0x19,
    311   DW_LNE_HP_define_proc              = 0x20
    312 };
    313 
    314 // Type encoding names and codes
    315 enum DwarfEncoding {
    316   DW_ATE_address                     =0x1,
    317   DW_ATE_boolean                     =0x2,
    318   DW_ATE_complex_float               =0x3,
    319   DW_ATE_float                       =0x4,
    320   DW_ATE_signed                      =0x5,
    321   DW_ATE_signed_char                 =0x6,
    322   DW_ATE_unsigned                    =0x7,
    323   DW_ATE_unsigned_char               =0x8,
    324   // DWARF3/DWARF3f
    325   DW_ATE_imaginary_float             =0x9,
    326   DW_ATE_packed_decimal              =0xa,
    327   DW_ATE_numeric_string              =0xb,
    328   DW_ATE_edited                      =0xc,
    329   DW_ATE_signed_fixed                =0xd,
    330   DW_ATE_unsigned_fixed              =0xe,
    331   DW_ATE_decimal_float               =0xf,
    332   DW_ATE_lo_user                     =0x80,
    333   DW_ATE_hi_user                     =0xff
    334 };
    335 
    336 // Location virtual machine opcodes
    337 enum DwarfOpcode {
    338   DW_OP_addr                         =0x03,
    339   DW_OP_deref                        =0x06,
    340   DW_OP_const1u                      =0x08,
    341   DW_OP_const1s                      =0x09,
    342   DW_OP_const2u                      =0x0a,
    343   DW_OP_const2s                      =0x0b,
    344   DW_OP_const4u                      =0x0c,
    345   DW_OP_const4s                      =0x0d,
    346   DW_OP_const8u                      =0x0e,
    347   DW_OP_const8s                      =0x0f,
    348   DW_OP_constu                       =0x10,
    349   DW_OP_consts                       =0x11,
    350   DW_OP_dup                          =0x12,
    351   DW_OP_drop                         =0x13,
    352   DW_OP_over                         =0x14,
    353   DW_OP_pick                         =0x15,
    354   DW_OP_swap                         =0x16,
    355   DW_OP_rot                          =0x17,
    356   DW_OP_xderef                       =0x18,
    357   DW_OP_abs                          =0x19,
    358   DW_OP_and                          =0x1a,
    359   DW_OP_div                          =0x1b,
    360   DW_OP_minus                        =0x1c,
    361   DW_OP_mod                          =0x1d,
    362   DW_OP_mul                          =0x1e,
    363   DW_OP_neg                          =0x1f,
    364   DW_OP_not                          =0x20,
    365   DW_OP_or                           =0x21,
    366   DW_OP_plus                         =0x22,
    367   DW_OP_plus_uconst                  =0x23,
    368   DW_OP_shl                          =0x24,
    369   DW_OP_shr                          =0x25,
    370   DW_OP_shra                         =0x26,
    371   DW_OP_xor                          =0x27,
    372   DW_OP_bra                          =0x28,
    373   DW_OP_eq                           =0x29,
    374   DW_OP_ge                           =0x2a,
    375   DW_OP_gt                           =0x2b,
    376   DW_OP_le                           =0x2c,
    377   DW_OP_lt                           =0x2d,
    378   DW_OP_ne                           =0x2e,
    379   DW_OP_skip                         =0x2f,
    380   DW_OP_lit0                         =0x30,
    381   DW_OP_lit1                         =0x31,
    382   DW_OP_lit2                         =0x32,
    383   DW_OP_lit3                         =0x33,
    384   DW_OP_lit4                         =0x34,
    385   DW_OP_lit5                         =0x35,
    386   DW_OP_lit6                         =0x36,
    387   DW_OP_lit7                         =0x37,
    388   DW_OP_lit8                         =0x38,
    389   DW_OP_lit9                         =0x39,
    390   DW_OP_lit10                        =0x3a,
    391   DW_OP_lit11                        =0x3b,
    392   DW_OP_lit12                        =0x3c,
    393   DW_OP_lit13                        =0x3d,
    394   DW_OP_lit14                        =0x3e,
    395   DW_OP_lit15                        =0x3f,
    396   DW_OP_lit16                        =0x40,
    397   DW_OP_lit17                        =0x41,
    398   DW_OP_lit18                        =0x42,
    399   DW_OP_lit19                        =0x43,
    400   DW_OP_lit20                        =0x44,
    401   DW_OP_lit21                        =0x45,
    402   DW_OP_lit22                        =0x46,
    403   DW_OP_lit23                        =0x47,
    404   DW_OP_lit24                        =0x48,
    405   DW_OP_lit25                        =0x49,
    406   DW_OP_lit26                        =0x4a,
    407   DW_OP_lit27                        =0x4b,
    408   DW_OP_lit28                        =0x4c,
    409   DW_OP_lit29                        =0x4d,
    410   DW_OP_lit30                        =0x4e,
    411   DW_OP_lit31                        =0x4f,
    412   DW_OP_reg0                         =0x50,
    413   DW_OP_reg1                         =0x51,
    414   DW_OP_reg2                         =0x52,
    415   DW_OP_reg3                         =0x53,
    416   DW_OP_reg4                         =0x54,
    417   DW_OP_reg5                         =0x55,
    418   DW_OP_reg6                         =0x56,
    419   DW_OP_reg7                         =0x57,
    420   DW_OP_reg8                         =0x58,
    421   DW_OP_reg9                         =0x59,
    422   DW_OP_reg10                        =0x5a,
    423   DW_OP_reg11                        =0x5b,
    424   DW_OP_reg12                        =0x5c,
    425   DW_OP_reg13                        =0x5d,
    426   DW_OP_reg14                        =0x5e,
    427   DW_OP_reg15                        =0x5f,
    428   DW_OP_reg16                        =0x60,
    429   DW_OP_reg17                        =0x61,
    430   DW_OP_reg18                        =0x62,
    431   DW_OP_reg19                        =0x63,
    432   DW_OP_reg20                        =0x64,
    433   DW_OP_reg21                        =0x65,
    434   DW_OP_reg22                        =0x66,
    435   DW_OP_reg23                        =0x67,
    436   DW_OP_reg24                        =0x68,
    437   DW_OP_reg25                        =0x69,
    438   DW_OP_reg26                        =0x6a,
    439   DW_OP_reg27                        =0x6b,
    440   DW_OP_reg28                        =0x6c,
    441   DW_OP_reg29                        =0x6d,
    442   DW_OP_reg30                        =0x6e,
    443   DW_OP_reg31                        =0x6f,
    444   DW_OP_breg0                        =0x70,
    445   DW_OP_breg1                        =0x71,
    446   DW_OP_breg2                        =0x72,
    447   DW_OP_breg3                        =0x73,
    448   DW_OP_breg4                        =0x74,
    449   DW_OP_breg5                        =0x75,
    450   DW_OP_breg6                        =0x76,
    451   DW_OP_breg7                        =0x77,
    452   DW_OP_breg8                        =0x78,
    453   DW_OP_breg9                        =0x79,
    454   DW_OP_breg10                       =0x7a,
    455   DW_OP_breg11                       =0x7b,
    456   DW_OP_breg12                       =0x7c,
    457   DW_OP_breg13                       =0x7d,
    458   DW_OP_breg14                       =0x7e,
    459   DW_OP_breg15                       =0x7f,
    460   DW_OP_breg16                       =0x80,
    461   DW_OP_breg17                       =0x81,
    462   DW_OP_breg18                       =0x82,
    463   DW_OP_breg19                       =0x83,
    464   DW_OP_breg20                       =0x84,
    465   DW_OP_breg21                       =0x85,
    466   DW_OP_breg22                       =0x86,
    467   DW_OP_breg23                       =0x87,
    468   DW_OP_breg24                       =0x88,
    469   DW_OP_breg25                       =0x89,
    470   DW_OP_breg26                       =0x8a,
    471   DW_OP_breg27                       =0x8b,
    472   DW_OP_breg28                       =0x8c,
    473   DW_OP_breg29                       =0x8d,
    474   DW_OP_breg30                       =0x8e,
    475   DW_OP_breg31                       =0x8f,
    476   DW_OP_regX                         =0x90,
    477   DW_OP_fbreg                        =0x91,
    478   DW_OP_bregX                        =0x92,
    479   DW_OP_piece                        =0x93,
    480   DW_OP_deref_size                   =0x94,
    481   DW_OP_xderef_size                  =0x95,
    482   DW_OP_nop                          =0x96,
    483   // DWARF3/DWARF3f
    484   DW_OP_push_object_address          =0x97,
    485   DW_OP_call2                        =0x98,
    486   DW_OP_call4                        =0x99,
    487   DW_OP_call_ref                     =0x9a,
    488   DW_OP_form_tls_address             =0x9b,
    489   DW_OP_call_frame_cfa               =0x9c,
    490   DW_OP_bit_piece                    =0x9d,
    491   DW_OP_lo_user                      =0xe0,
    492   DW_OP_hi_user                      =0xff,
    493   // GNU extensions
    494   DW_OP_GNU_push_tls_address         =0xe0
    495 };
    496 
    497 // Source languages.  These are values for DW_AT_language.
    498 enum DwarfLanguage
    499   {
    500     DW_LANG_none                     =0x0000,
    501     DW_LANG_C89                      =0x0001,
    502     DW_LANG_C                        =0x0002,
    503     DW_LANG_Ada83                    =0x0003,
    504     DW_LANG_C_plus_plus              =0x0004,
    505     DW_LANG_Cobol74                  =0x0005,
    506     DW_LANG_Cobol85                  =0x0006,
    507     DW_LANG_Fortran77                =0x0007,
    508     DW_LANG_Fortran90                =0x0008,
    509     DW_LANG_Pascal83                 =0x0009,
    510     DW_LANG_Modula2                  =0x000a,
    511     DW_LANG_Java                     =0x000b,
    512     DW_LANG_C99                      =0x000c,
    513     DW_LANG_Ada95                    =0x000d,
    514     DW_LANG_Fortran95                =0x000e,
    515     DW_LANG_PLI                      =0x000f,
    516     DW_LANG_ObjC                     =0x0010,
    517     DW_LANG_ObjC_plus_plus           =0x0011,
    518     DW_LANG_UPC                      =0x0012,
    519     DW_LANG_D                        =0x0013,
    520     // Implementation-defined language code range.
    521     DW_LANG_lo_user = 0x8000,
    522     DW_LANG_hi_user = 0xffff,
    523 
    524     // Extensions.
    525 
    526     // MIPS assembly language.  The GNU toolchain uses this for all
    527     // assembly languages, since there's no generic DW_LANG_ value for that.
    528     // See include/dwarf2.h in the binutils, gdb, or gcc source trees.
    529     DW_LANG_Mips_Assembler           =0x8001,
    530     DW_LANG_Upc                      =0x8765 // Unified Parallel C
    531   };
    532 
    533 // Inline codes.  These are values for DW_AT_inline.
    534 enum DwarfInline {
    535   DW_INL_not_inlined                 =0x0,
    536   DW_INL_inlined                     =0x1,
    537   DW_INL_declared_not_inlined        =0x2,
    538   DW_INL_declared_inlined            =0x3
    539 };
    540 
    541 // Call Frame Info instructions.
    542 enum DwarfCFI
    543   {
    544     DW_CFA_advance_loc        = 0x40,
    545     DW_CFA_offset             = 0x80,
    546     DW_CFA_restore            = 0xc0,
    547     DW_CFA_nop                = 0x00,
    548     DW_CFA_set_loc            = 0x01,
    549     DW_CFA_advance_loc1       = 0x02,
    550     DW_CFA_advance_loc2       = 0x03,
    551     DW_CFA_advance_loc4       = 0x04,
    552     DW_CFA_offset_extended    = 0x05,
    553     DW_CFA_restore_extended   = 0x06,
    554     DW_CFA_undefined          = 0x07,
    555     DW_CFA_same_value         = 0x08,
    556     DW_CFA_register           = 0x09,
    557     DW_CFA_remember_state     = 0x0a,
    558     DW_CFA_restore_state      = 0x0b,
    559     DW_CFA_def_cfa            = 0x0c,
    560     DW_CFA_def_cfa_register   = 0x0d,
    561     DW_CFA_def_cfa_offset     = 0x0e,
    562     DW_CFA_def_cfa_expression = 0x0f,
    563     DW_CFA_expression         = 0x10,
    564     DW_CFA_offset_extended_sf = 0x11,
    565     DW_CFA_def_cfa_sf         = 0x12,
    566     DW_CFA_def_cfa_offset_sf  = 0x13,
    567     DW_CFA_val_offset         = 0x14,
    568     DW_CFA_val_offset_sf      = 0x15,
    569     DW_CFA_val_expression     = 0x16,
    570 
    571     // Opcodes in this range are reserved for user extensions.
    572     DW_CFA_lo_user = 0x1c,
    573     DW_CFA_hi_user = 0x3f,
    574 
    575     // SGI/MIPS specific.
    576     DW_CFA_MIPS_advance_loc8 = 0x1d,
    577 
    578     // GNU extensions.
    579     DW_CFA_GNU_window_save = 0x2d,
    580     DW_CFA_GNU_args_size = 0x2e,
    581     DW_CFA_GNU_negative_offset_extended = 0x2f
    582   };
    583 
    584 // Exception handling 'z' augmentation letters.
    585 enum DwarfZAugmentationCodes {
    586   // If the CFI augmentation string begins with 'z', then the CIE and FDE
    587   // have an augmentation data area just before the instructions, whose
    588   // contents are determined by the subsequent augmentation letters.
    589   DW_Z_augmentation_start = 'z',
    590 
    591   // If this letter is present in a 'z' augmentation string, the CIE
    592   // augmentation data includes a pointer encoding, and the FDE
    593   // augmentation data includes a language-specific data area pointer,
    594   // represented using that encoding.
    595   DW_Z_has_LSDA = 'L',
    596 
    597   // If this letter is present in a 'z' augmentation string, the CIE
    598   // augmentation data includes a pointer encoding, followed by a pointer
    599   // to a personality routine, represented using that encoding.
    600   DW_Z_has_personality_routine = 'P',
    601 
    602   // If this letter is present in a 'z' augmentation string, the CIE
    603   // augmentation data includes a pointer encoding describing how the FDE's
    604   // initial location, address range, and DW_CFA_set_loc operands are
    605   // encoded.
    606   DW_Z_has_FDE_address_encoding = 'R',
    607 
    608   // If this letter is present in a 'z' augmentation string, then code
    609   // addresses covered by FDEs that cite this CIE are signal delivery
    610   // trampolines. Return addresses of frames in trampolines should not be
    611   // adjusted as described in section 6.4.4 of the DWARF 3 spec.
    612   DW_Z_is_signal_trampoline = 'S'
    613 };
    614 
    615 // Exception handling frame description pointer formats, as described
    616 // by the Linux Standard Base Core Specification 4.0, section 11.5,
    617 // DWARF Extensions.
    618 enum DwarfPointerEncoding
    619   {
    620     DW_EH_PE_absptr	= 0x00,
    621     DW_EH_PE_omit	= 0xff,
    622     DW_EH_PE_uleb128    = 0x01,
    623     DW_EH_PE_udata2	= 0x02,
    624     DW_EH_PE_udata4	= 0x03,
    625     DW_EH_PE_udata8	= 0x04,
    626     DW_EH_PE_sleb128    = 0x09,
    627     DW_EH_PE_sdata2	= 0x0A,
    628     DW_EH_PE_sdata4	= 0x0B,
    629     DW_EH_PE_sdata8	= 0x0C,
    630     DW_EH_PE_pcrel	= 0x10,
    631     DW_EH_PE_textrel	= 0x20,
    632     DW_EH_PE_datarel	= 0x30,
    633     DW_EH_PE_funcrel	= 0x40,
    634     DW_EH_PE_aligned	= 0x50,
    635 
    636     // The GNU toolchain sources define this enum value as well,
    637     // simply to help classify the lower nybble values into signed and
    638     // unsigned groups.
    639     DW_EH_PE_signed	= 0x08,
    640 
    641     // This is not documented in LSB 4.0, but it is used in both the
    642     // Linux and OS X toolchains. It can be added to any other
    643     // encoding (except DW_EH_PE_aligned), and indicates that the
    644     // encoded value represents the address at which the true address
    645     // is stored, not the true address itself.
    646     DW_EH_PE_indirect	= 0x80
    647   };
    648 
    649 }  // namespace dwarf2reader
    650 #endif  // COMMON_DWARF_DWARF2ENUMS_H__
    651