// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Cut, pasted, tr-and-awk'ed from tables in
// http://dwarfstd.org/doc/Dwarf3.pdf

// Table 18
enum
{
	DW_TAG_array_type = 0x01,
	DW_TAG_class_type = 0x02,
	DW_TAG_entry_point = 0x03,
	DW_TAG_enumeration_type = 0x04,
	DW_TAG_formal_parameter = 0x05,
	DW_TAG_imported_declaration = 0x08,
	DW_TAG_label = 0x0a,
	DW_TAG_lexical_block = 0x0b,
	DW_TAG_member = 0x0d,
	DW_TAG_pointer_type = 0x0f,
	DW_TAG_reference_type = 0x10,
	DW_TAG_compile_unit = 0x11,
	DW_TAG_string_type = 0x12,
	DW_TAG_structure_type = 0x13,
	DW_TAG_subroutine_type = 0x15,
	DW_TAG_typedef = 0x16,
	DW_TAG_union_type = 0x17,
	DW_TAG_unspecified_parameters = 0x18,
	DW_TAG_variant = 0x19,
	DW_TAG_common_block = 0x1a,
	DW_TAG_common_inclusion = 0x1b,
	DW_TAG_inheritance = 0x1c,
	DW_TAG_inlined_subroutine = 0x1d,
	DW_TAG_module = 0x1e,
	DW_TAG_ptr_to_member_type = 0x1f,
	DW_TAG_set_type = 0x20,
	DW_TAG_subrange_type = 0x21,
	DW_TAG_with_stmt = 0x22,
	DW_TAG_access_declaration = 0x23,
	DW_TAG_base_type = 0x24,
	DW_TAG_catch_block = 0x25,
	DW_TAG_const_type = 0x26,
	DW_TAG_constant = 0x27,
	DW_TAG_enumerator = 0x28,
	DW_TAG_file_type = 0x29,
	DW_TAG_friend = 0x2a,
	DW_TAG_namelist = 0x2b,
	DW_TAG_namelist_item = 0x2c,
	DW_TAG_packed_type = 0x2d,
	DW_TAG_subprogram = 0x2e,
	DW_TAG_template_type_parameter = 0x2f,
	DW_TAG_template_value_parameter = 0x30,
	DW_TAG_thrown_type = 0x31,
	DW_TAG_try_block = 0x32,
	DW_TAG_variant_part = 0x33,
	DW_TAG_variable = 0x34,
	DW_TAG_volatile_type = 0x35,
	// Dwarf3
	DW_TAG_dwarf_procedure = 0x36,
	DW_TAG_restrict_type = 0x37,
	DW_TAG_interface_type = 0x38,
	DW_TAG_namespace = 0x39,
	DW_TAG_imported_module = 0x3a,
	DW_TAG_unspecified_type = 0x3b,
	DW_TAG_partial_unit = 0x3c,
	DW_TAG_imported_unit = 0x3d,
	DW_TAG_condition = 0x3f,
	DW_TAG_shared_type = 0x40,
	// Dwarf4
	DW_TAG_type_unit = 0x41,
	DW_TAG_rvalue_reference_type = 0x42,
	DW_TAG_template_alias = 0x43,

	// User defined
	DW_TAG_lo_user = 0x4080,
	DW_TAG_hi_user = 0xffff,

};

// Table 19
enum
{
	DW_CHILDREN_no = 0x00,
	DW_CHILDREN_yes = 0x01,
};

// Not from the spec, but logicaly belongs here
enum
{
	DW_CLS_ADDRESS = 0x01,
	DW_CLS_BLOCK,
	DW_CLS_CONSTANT,
	DW_CLS_FLAG,
	DW_CLS_PTR,	// lineptr, loclistptr, macptr, rangelistptr
	DW_CLS_REFERENCE,
	DW_CLS_ADDRLOC,
	DW_CLS_STRING
};

// Table 20
enum
{
	DW_AT_sibling = 0x01,	// reference
	DW_AT_location = 0x02,	// block, loclistptr
	DW_AT_name = 0x03,	// string
	DW_AT_ordering = 0x09,	// constant
	DW_AT_byte_size = 0x0b,	// block, constant, reference
	DW_AT_bit_offset = 0x0c,	// block, constant, reference
	DW_AT_bit_size = 0x0d,	// block, constant, reference
	DW_AT_stmt_list = 0x10,	// lineptr
	DW_AT_low_pc = 0x11,	// address
	DW_AT_high_pc = 0x12,	// address
	DW_AT_language = 0x13,	// constant
	DW_AT_discr = 0x15,	// reference
	DW_AT_discr_value = 0x16,	// constant
	DW_AT_visibility = 0x17,	// constant
	DW_AT_import = 0x18,	// reference
	DW_AT_string_length = 0x19,	// block, loclistptr
	DW_AT_common_reference = 0x1a,	// reference
	DW_AT_comp_dir = 0x1b,	// string
	DW_AT_const_value = 0x1c,	// block, constant, string
	DW_AT_containing_type = 0x1d,	// reference
	DW_AT_default_value = 0x1e,	// reference
	DW_AT_inline = 0x20,	// constant
	DW_AT_is_optional = 0x21,	// flag
	DW_AT_lower_bound = 0x22,	// block, constant, reference
	DW_AT_producer = 0x25,	// string
	DW_AT_prototyped = 0x27,	// flag
	DW_AT_return_addr = 0x2a,	// block, loclistptr
	DW_AT_start_scope = 0x2c,	// constant
	DW_AT_bit_stride = 0x2e,	// constant
	DW_AT_upper_bound = 0x2f,	// block, constant, reference
	DW_AT_abstract_origin = 0x31,	// reference
	DW_AT_accessibility = 0x32,	// constant
	DW_AT_address_class = 0x33,	// constant
	DW_AT_artificial = 0x34,	// flag
	DW_AT_base_types = 0x35,	// reference
	DW_AT_calling_convention = 0x36,	// constant
	DW_AT_count = 0x37,	// block, constant, reference
	DW_AT_data_member_location = 0x38,	// block, constant, loclistptr
	DW_AT_decl_column = 0x39,	// constant
	DW_AT_decl_file = 0x3a,	// constant
	DW_AT_decl_line = 0x3b,	// constant
	DW_AT_declaration = 0x3c,	// flag
	DW_AT_discr_list = 0x3d,	// block
	DW_AT_encoding = 0x3e,	// constant
	DW_AT_external = 0x3f,	// flag
	DW_AT_frame_base = 0x40,	// block, loclistptr
	DW_AT_friend = 0x41,	// reference
	DW_AT_identifier_case = 0x42,	// constant
	DW_AT_macro_info = 0x43,	// macptr
	DW_AT_namelist_item = 0x44,	// block
	DW_AT_priority = 0x45,	// reference
	DW_AT_segment = 0x46,	// block, loclistptr
	DW_AT_specification = 0x47,	// reference
	DW_AT_static_link = 0x48,	// block, loclistptr
	DW_AT_type = 0x49,	// reference
	DW_AT_use_location = 0x4a,	// block, loclistptr
	DW_AT_variable_parameter = 0x4b,	// flag
	DW_AT_virtuality = 0x4c,	// constant
	DW_AT_vtable_elem_location = 0x4d,	// block, loclistptr
	// Dwarf3
	DW_AT_allocated = 0x4e,	// block, constant, reference
	DW_AT_associated = 0x4f,	// block, constant, reference
	DW_AT_data_location = 0x50,	// block
	DW_AT_byte_stride = 0x51,	// block, constant, reference
	DW_AT_entry_pc = 0x52,	// address
	DW_AT_use_UTF8 = 0x53,	// flag
	DW_AT_extension = 0x54,	// reference
	DW_AT_ranges = 0x55,	// rangelistptr
	DW_AT_trampoline = 0x56,	// address, flag, reference, string
	DW_AT_call_column = 0x57,	// constant
	DW_AT_call_file = 0x58,	// constant
	DW_AT_call_line = 0x59,	// constant
	DW_AT_description = 0x5a,	// string
	DW_AT_binary_scale = 0x5b,	// constant
	DW_AT_decimal_scale = 0x5c,	// constant
	DW_AT_small = 0x5d,	// reference
	DW_AT_decimal_sign = 0x5e,	// constant
	DW_AT_digit_count = 0x5f,	// constant
	DW_AT_picture_string = 0x60,	// string
	DW_AT_mutable = 0x61,	// flag
	DW_AT_threads_scaled = 0x62,	// flag
	DW_AT_explicit = 0x63,	// flag
	DW_AT_object_pointer = 0x64,	// reference
	DW_AT_endianity = 0x65,	// constant
	DW_AT_elemental = 0x66,	// flag
	DW_AT_pure = 0x67,	// flag
	DW_AT_recursive = 0x68,	// flag

	DW_AT_lo_user = 0x2000,	// ---
	DW_AT_hi_user = 0x3fff,	// ---

};

// Table 21
enum
{
	DW_FORM_addr = 0x01,	// address
	DW_FORM_block2 = 0x03,	// block
	DW_FORM_block4 = 0x04,	// block
	DW_FORM_data2 = 0x05,	// constant
	DW_FORM_data4 = 0x06,	// constant, lineptr, loclistptr, macptr, rangelistptr
	DW_FORM_data8 = 0x07,	// constant, lineptr, loclistptr, macptr, rangelistptr
	DW_FORM_string = 0x08,	// string
	DW_FORM_block = 0x09,	// block
	DW_FORM_block1 = 0x0a,	// block
	DW_FORM_data1 = 0x0b,	// constant
	DW_FORM_flag = 0x0c,	// flag
	DW_FORM_sdata = 0x0d,	// constant
	DW_FORM_strp = 0x0e,	// string
	DW_FORM_udata = 0x0f,	// constant
	DW_FORM_ref_addr = 0x10,	// reference
	DW_FORM_ref1 = 0x11,	// reference
	DW_FORM_ref2 = 0x12,	// reference
	DW_FORM_ref4 = 0x13,	// reference
	DW_FORM_ref8 = 0x14,	// reference
	DW_FORM_ref_udata = 0x15,	// reference
	DW_FORM_indirect = 0x16,	// (see Section 7.5.3)
};

// Table 24 (#operands, notes)
enum
{
	DW_OP_addr = 0x03,	// 1 constant address (size target specific)
	DW_OP_deref = 0x06,	// 0
	DW_OP_const1u = 0x08,	// 1 1-byte constant
	DW_OP_const1s = 0x09,	// 1 1-byte constant
	DW_OP_const2u = 0x0a,	// 1 2-byte constant
	DW_OP_const2s = 0x0b,	// 1 2-byte constant
	DW_OP_const4u = 0x0c,	// 1 4-byte constant
	DW_OP_const4s = 0x0d,	// 1 4-byte constant
	DW_OP_const8u = 0x0e,	// 1 8-byte constant
	DW_OP_const8s = 0x0f,	// 1 8-byte constant
	DW_OP_constu = 0x10,	// 1 ULEB128 constant
	DW_OP_consts = 0x11,	// 1 SLEB128 constant
	DW_OP_dup = 0x12,	// 0
	DW_OP_drop = 0x13,	// 0
	DW_OP_over = 0x14,	// 0
	DW_OP_pick = 0x15,	// 1 1-byte stack index
	DW_OP_swap = 0x16,	// 0
	DW_OP_rot = 0x17,	// 0
	DW_OP_xderef = 0x18,	// 0
	DW_OP_abs = 0x19,	// 0
	DW_OP_and = 0x1a,	// 0
	DW_OP_div = 0x1b,	// 0
	DW_OP_minus = 0x1c,	// 0
	DW_OP_mod = 0x1d,	// 0
	DW_OP_mul = 0x1e,	// 0
	DW_OP_neg = 0x1f,	// 0
	DW_OP_not = 0x20,	// 0
	DW_OP_or = 0x21,	// 0
	DW_OP_plus = 0x22,	// 0
	DW_OP_plus_uconst = 0x23,	// 1 ULEB128 addend
	DW_OP_shl = 0x24,	// 0
	DW_OP_shr = 0x25,	// 0
	DW_OP_shra = 0x26,	// 0
	DW_OP_xor = 0x27,	// 0
	DW_OP_skip = 0x2f,	// 1 signed 2-byte constant
	DW_OP_bra = 0x28,	// 1 signed 2-byte constant
	DW_OP_eq = 0x29,	// 0
	DW_OP_ge = 0x2a,	// 0
	DW_OP_gt = 0x2b,	// 0
	DW_OP_le = 0x2c,	// 0
	DW_OP_lt = 0x2d,	// 0
	DW_OP_ne = 0x2e,	// 0
	DW_OP_lit0 = 0x30,	// 0 ...
	DW_OP_lit31 = 0x4f,	// 0 literals 0..31 = (DW_OP_lit0 +
	// literal)
	DW_OP_reg0 = 0x50,	// 0 ..
	DW_OP_reg31 = 0x6f,	// 0 reg 0..31 = (DW_OP_reg0 + regnum)
	DW_OP_breg0 = 0x70,	// 1 ...
	DW_OP_breg31 = 0x8f,	// 1 SLEB128 offset base register 0..31 = (DW_OP_breg0 + regnum)
	DW_OP_regx = 0x90,	// 1 ULEB128 register
	DW_OP_fbreg = 0x91,	// 1 SLEB128 offset
	DW_OP_bregx = 0x92,	// 2 ULEB128 register followed by SLEB128 offset
	DW_OP_piece = 0x93,	// 1 ULEB128 size of piece addressed
	DW_OP_deref_size = 0x94,	// 1 1-byte size of data retrieved
	DW_OP_xderef_size = 0x95,	// 1 1-byte size of data retrieved
	DW_OP_nop = 0x96,	// 0
	DW_OP_push_object_address = 0x97,	// 0
	DW_OP_call2 = 0x98,	// 1 2-byte offset of DIE
	DW_OP_call4 = 0x99,	// 1 4-byte offset of DIE
	DW_OP_call_ref = 0x9a,	// 1 4- or 8-byte offset of DIE
	DW_OP_form_tls_address = 0x9b,	// 0
	DW_OP_call_frame_cfa = 0x9c,	// 0
	DW_OP_bit_piece = 0x9d,	// 2
	DW_OP_lo_user = 0xe0,
	DW_OP_hi_user = 0xff,
};

// Table 25
enum
{
	DW_ATE_address = 0x01,
	DW_ATE_boolean = 0x02,
	DW_ATE_complex_float = 0x03,
	DW_ATE_float = 0x04,
	DW_ATE_signed = 0x05,
	DW_ATE_signed_char = 0x06,
	DW_ATE_unsigned = 0x07,
	DW_ATE_unsigned_char = 0x08,
	DW_ATE_imaginary_float = 0x09,
	DW_ATE_packed_decimal = 0x0a,
	DW_ATE_numeric_string = 0x0b,
	DW_ATE_edited = 0x0c,
	DW_ATE_signed_fixed = 0x0d,
	DW_ATE_unsigned_fixed = 0x0e,
	DW_ATE_decimal_float = 0x0f,
	DW_ATE_lo_user = 0x80,
	DW_ATE_hi_user = 0xff,
};

// Table 26
enum
{
	DW_DS_unsigned = 0x01,
	DW_DS_leading_overpunch = 0x02,
	DW_DS_trailing_overpunch = 0x03,
	DW_DS_leading_separate = 0x04,
	DW_DS_trailing_separate = 0x05,
};

// Table 27
enum
{
	DW_END_default = 0x00,
	DW_END_big = 0x01,
	DW_END_little = 0x02,
	DW_END_lo_user = 0x40,
	DW_END_hi_user = 0xff,
};

// Table 28
enum
{
	DW_ACCESS_public = 0x01,
	DW_ACCESS_protected = 0x02,
	DW_ACCESS_private = 0x03,
};

// Table 29
enum
{
	DW_VIS_local = 0x01,
	DW_VIS_exported = 0x02,
	DW_VIS_qualified = 0x03,
};

// Table 30
enum
{
	DW_VIRTUALITY_none = 0x00,
	DW_VIRTUALITY_virtual = 0x01,
	DW_VIRTUALITY_pure_virtual = 0x02,
};

// Table 31
enum
{
	DW_LANG_C89 = 0x0001,
	DW_LANG_C = 0x0002,
	DW_LANG_Ada83 = 0x0003,
	DW_LANG_C_plus_plus = 0x0004,
	DW_LANG_Cobol74 = 0x0005,
	DW_LANG_Cobol85 = 0x0006,
	DW_LANG_Fortran77 = 0x0007,
	DW_LANG_Fortran90 = 0x0008,
	DW_LANG_Pascal83 = 0x0009,
	DW_LANG_Modula2 = 0x000a,
	// Dwarf3
	DW_LANG_Java = 0x000b,
	DW_LANG_C99 = 0x000c,
	DW_LANG_Ada95 = 0x000d,
	DW_LANG_Fortran95 = 0x000e,
	DW_LANG_PLI = 0x000f,
	DW_LANG_ObjC = 0x0010,
	DW_LANG_ObjC_plus_plus = 0x0011,
	DW_LANG_UPC = 0x0012,
	DW_LANG_D = 0x0013,
	// Dwarf4
	DW_LANG_Python = 0x0014,
	// Dwarf5
	DW_LANG_Go = 0x0016,

	DW_LANG_lo_user = 0x8000,
	DW_LANG_hi_user = 0xffff,
};

// Table 32
enum
{
	DW_ID_case_sensitive = 0x00,
	DW_ID_up_case = 0x01,
	DW_ID_down_case = 0x02,
	DW_ID_case_insensitive = 0x03,
};

// Table 33
enum
{
	DW_CC_normal = 0x01,
	DW_CC_program = 0x02,
	DW_CC_nocall = 0x03,
	DW_CC_lo_user = 0x40,
	DW_CC_hi_user = 0xff,
};

// Table 34
enum
{
	DW_INL_not_inlined = 0x00,
	DW_INL_inlined = 0x01,
	DW_INL_declared_not_inlined = 0x02,
	DW_INL_declared_inlined = 0x03,
};

// Table 35
enum
{
	DW_ORD_row_major = 0x00,
	DW_ORD_col_major = 0x01,
};

// Table 36
enum
{
	DW_DSC_label = 0x00,
	DW_DSC_range = 0x01,
};

// Table 37
enum
{
	DW_LNS_copy = 0x01,
	DW_LNS_advance_pc = 0x02,
	DW_LNS_advance_line = 0x03,
	DW_LNS_set_file = 0x04,
	DW_LNS_set_column = 0x05,
	DW_LNS_negate_stmt = 0x06,
	DW_LNS_set_basic_block = 0x07,
	DW_LNS_const_add_pc = 0x08,
	DW_LNS_fixed_advance_pc = 0x09,
	// Dwarf3
	DW_LNS_set_prologue_end = 0x0a,
	DW_LNS_set_epilogue_begin = 0x0b,
	DW_LNS_set_isa = 0x0c,
};

// Table 38
enum
{
	DW_LNE_end_sequence = 0x01,
	DW_LNE_set_address = 0x02,
	DW_LNE_define_file = 0x03,
	DW_LNE_lo_user = 0x80,
	DW_LNE_hi_user = 0xff,
};

// Table 39
enum
{
	DW_MACINFO_define = 0x01,
	DW_MACINFO_undef = 0x02,
	DW_MACINFO_start_file = 0x03,
	DW_MACINFO_end_file = 0x04,
	DW_MACINFO_vendor_ext = 0xff,
};

// Table 40.
enum
{					// operand,...
	DW_CFA_nop = 0x00,
	DW_CFA_set_loc = 0x01,		// address
	DW_CFA_advance_loc1 = 0x02,	// 1-byte delta
	DW_CFA_advance_loc2 = 0x03,	// 2-byte delta
	DW_CFA_advance_loc4 = 0x04,	// 4-byte delta
	DW_CFA_offset_extended = 0x05,	// ULEB128 register, ULEB128 offset
	DW_CFA_restore_extended = 0x06, // ULEB128 register
	DW_CFA_undefined = 0x07,	// ULEB128 register
	DW_CFA_same_value = 0x08,	// ULEB128 register
	DW_CFA_register = 0x09,		// ULEB128 register, ULEB128 register
	DW_CFA_remember_state = 0x0a,
	DW_CFA_restore_state = 0x0b,
	DW_CFA_def_cfa = 0x0c,		// ULEB128 register, ULEB128 offset
	DW_CFA_def_cfa_register = 0x0d,	// ULEB128 register
	DW_CFA_def_cfa_offset = 0x0e,	// ULEB128 offset
	DW_CFA_def_cfa_expression = 0x0f, // BLOCK
	DW_CFA_expression = 0x10,	// ULEB128 register, BLOCK
	DW_CFA_offset_extended_sf = 0x11, // ULEB128 register, SLEB128 offset
	DW_CFA_def_cfa_sf = 0x12,	// ULEB128 register, SLEB128 offset
	DW_CFA_def_cfa_offset_sf = 0x13, // SLEB128 offset
	DW_CFA_val_offset = 0x14,	// ULEB128, ULEB128
	DW_CFA_val_offset_sf = 0x15,	// ULEB128, SLEB128
	DW_CFA_val_expression = 0x16,	// ULEB128, BLOCK

	DW_CFA_lo_user = 0x1c,
	DW_CFA_hi_user = 0x3f,

	// Opcodes that take an addend operand.
	DW_CFA_advance_loc = 0x1<<6, // +delta
	DW_CFA_offset	   = 0x2<<6, // +register (ULEB128 offset)
	DW_CFA_restore	   = 0x3<<6, // +register
};