#ifndef RZ_BIN_DWARF_H
#define RZ_BIN_DWARF_H

#include <rz_types.h>
#include <rz_bin.h>

#ifdef __cplusplus
extern "C" {
#endif

struct rz_bin_source_line_info_builder_t;

#define DW_EXTENDED_OPCODE 0
#define LOP_EXTENDED       1
#define LOP_DISCARD        2
#define LOP_STANDARD       3
#define LOP_SPECIAL        4

#define DW_LNS_copy               0x01
#define DW_LNS_advance_pc         0x02
#define DW_LNS_advance_line       0x03
#define DW_LNS_set_file           0x04
#define DW_LNS_set_column         0x05
#define DW_LNS_negate_stmt        0x06
#define DW_LNS_set_basic_block    0x07
#define DW_LNS_const_add_pc       0x08
#define DW_LNS_fixed_advance_pc   0x09
#define DW_LNS_set_prologue_end   0x0a /* DWARF3 */
#define DW_LNS_set_epilogue_begin 0x0b /* DWARF3 */
#define DW_LNS_set_isa            0x0c /* DWARF3 */
/* Line number extended opcode name. */
#define DW_LNE_end_sequence      0x01
#define DW_LNE_set_address       0x02
#define DW_LNE_define_file       0x03
#define DW_LNE_set_discriminator 0x04 /* DWARF4 */
#define DW_LNE_lo_user           0x80 /* DWARF3 */
#define DW_LNE_hi_user           0xff /* DWARF3 */

/* HP extensions. */
#define DW_LNE_HP_negate_is_UV_update      0x11 /* 17 HP */
#define DW_LNE_HP_push_context             0x12 /* 18 HP */
#define DW_LNE_HP_pop_context              0x13 /* 19 HP */
#define DW_LNE_HP_set_file_line_column     0x14 /* 20 HP */
#define DW_LNE_HP_set_routine_name         0x15 /* 21 HP */
#define DW_LNE_HP_set_sequence             0x16 /* 22 HP */
#define DW_LNE_HP_negate_post_semantics    0x17 /* 23 HP */
#define DW_LNE_HP_negate_function_exit     0x18 /* 24 HP */
#define DW_LNE_HP_negate_front_end_logical 0x19 /* 25 HP */
#define DW_LNE_HP_define_proc              0x20 /* 32 HP */

/* debug_info tags */
// this is not a real dwarf named entry, but I wanted to give it
// a name so it's more obvious and readable that it's just a type of entry
#define DW_TAG_null_entry             0x00
#define DW_TAG_array_type             0x01
#define DW_TAG_class_type             0x02
#define DW_TAG_entry_point            0x03
#define DW_TAG_enumeration_type       0x04
#define DW_TAG_formal_parameter       0x05
#define DW_TAG_imported_declaration   0x08
#define DW_TAG_label                  0x0a
#define DW_TAG_lexical_block          0x0b
#define DW_TAG_member                 0x0d
#define DW_TAG_pointer_type           0x0f
#define DW_TAG_reference_type         0x10
#define DW_TAG_compile_unit           0x11 //
#define DW_TAG_string_type            0x12
#define DW_TAG_structure_type         0x13
#define DW_TAG_subroutine_type        0x15
#define DW_TAG_typedef                0x16
#define DW_TAG_union_type             0x17
#define DW_TAG_unspecified_parameters 0x18
#define DW_TAG_variant                0x19
#define DW_TAG_common_block           0x1a
#define DW_TAG_common_inclusion       0x1b
#define DW_TAG_inheritance            0x1c
#define DW_TAG_inlined_subroutine     0x1d
#define DW_TAG_module                 0x1e
#define DW_TAG_ptr_to_member_type     0x1f
#define DW_TAG_set_type               0x20
#define DW_TAG_subrange_type          0x21
#define DW_TAG_with_stmt              0x22
#define DW_TAG_access_declaration     0x23
#define DW_TAG_base_type              0x24
#define DW_TAG_catch_block            0x25
#define DW_TAG_const_type             0x26
#define DW_TAG_constant               0x27
#define DW_TAG_enumerator             0x28
#define DW_TAG_file_type              0x29
#define DW_TAG_friend                 0x2a
#define DW_TAG_namelist               0x2b
/*  Early releases of this header had the following
	    misspelled with a trailing 's' */
#define DW_TAG_namelist_item  0x2c /* DWARF3/2 spelling */
#define DW_TAG_namelist_items 0x2c /* SGI misspelling/typo */
#define DW_TAG_packed_type    0x2d
#define DW_TAG_subprogram     0x2e
/*  The DWARF2 document had two spellings of the following
	    two TAGs, DWARF3 specifies the longer spelling. */
#define DW_TAG_template_type_parameter  0x2f /* DWARF3/2 spelling*/
#define DW_TAG_template_type_param      0x2f /* DWARF2   spelling*/
#define DW_TAG_template_value_parameter 0x30 /* DWARF3/2 spelling*/
#define DW_TAG_template_value_param     0x30 /* DWARF2   spelling*/
#define DW_TAG_thrown_type              0x31
#define DW_TAG_try_block                0x32
#define DW_TAG_variant_part             0x33
#define DW_TAG_variable                 0x34
#define DW_TAG_volatile_type            0x35
#define DW_TAG_dwarf_procedure          0x36 /* DWARF3 */
#define DW_TAG_restrict_type            0x37 /* DWARF3 */
#define DW_TAG_interface_type           0x38 /* DWARF3 */
#define DW_TAG_namespace                0x39 /* DWARF3 */
#define DW_TAG_imported_module          0x3a /* DWARF3 */
#define DW_TAG_unspecified_type         0x3b /* DWARF3 */
#define DW_TAG_partial_unit             0x3c /* DWARF3 */
#define DW_TAG_imported_unit            0x3d /* DWARF3 */
/*  Do not use DW_TAG_mutable_type */
#define DW_TAG_mutable_type          0x3e /* Withdrawn from DWARF3 by DWARF3f. */
#define DW_TAG_condition             0x3f /* DWARF3f */
#define DW_TAG_shared_type           0x40 /* DWARF3f */
#define DW_TAG_type_unit             0x41 /* DWARF4 */
#define DW_TAG_rvalue_reference_type 0x42 /* DWARF4 */
#define DW_TAG_template_alias        0x43 /* DWARF4 */

#define DW_TAG_LAST 0x44 // correct ?
/* <_lo_user ; _hi_user> Interval is reserved for vendor extensions */
#define DW_TAG_lo_user 0x4080
#define DW_TAG_hi_user 0xffff

#define DW_CHILDREN_no  0x00
#define DW_CHILDREN_yes 0x01

#define DW_AT_sibling              0x01
#define DW_AT_location             0x02
#define DW_AT_name                 0x03
#define DW_AT_ordering             0x09
#define DW_AT_byte_size            0x0b
#define DW_AT_bit_offset           0x0c
#define DW_AT_bit_size             0x0d
#define DW_AT_stmt_list            0x10
#define DW_AT_low_pc               0x11
#define DW_AT_high_pc              0x12
#define DW_AT_language             0x13
#define DW_AT_discr                0x15
#define DW_AT_discr_value          0x16
#define DW_AT_visibility           0x17
#define DW_AT_import               0x18
#define DW_AT_string_length        0x19
#define DW_AT_common_reference     0x1a
#define DW_AT_comp_dir             0x1b
#define DW_AT_const_value          0x1c
#define DW_AT_containing_type      0x1d
#define DW_AT_default_value        0x1e
#define DW_AT_inline               0x20
#define DW_AT_is_optional          0x21
#define DW_AT_lower_bound          0x22
#define DW_AT_producer             0x25
#define DW_AT_prototyped           0x27
#define DW_AT_return_addr          0x2a
#define DW_AT_start_scope          0x2c
#define DW_AT_stride_size          0x2e
#define DW_AT_upper_bound          0x2f
#define DW_AT_abstract_origin      0x31
#define DW_AT_accessibility        0x32
#define DW_AT_address_class        0x33
#define DW_AT_artificial           0x34
#define DW_AT_base_types           0x35
#define DW_AT_calling_convention   0x36
#define DW_AT_count                0x37
#define DW_AT_data_member_location 0x38
#define DW_AT_decl_column          0x39
#define DW_AT_decl_file            0x3a
#define DW_AT_decl_line            0x3b
#define DW_AT_declaration          0x3c
#define DW_AT_discr_list           0x3d
#define DW_AT_encoding             0x3e
#define DW_AT_external             0x3f
#define DW_AT_frame_base           0x40
#define DW_AT_friend               0x41
#define DW_AT_identifier_case      0x42
#define DW_AT_macro_info           0x43
#define DW_AT_namelist_item        0x44
#define DW_AT_priority             0x45
#define DW_AT_segment              0x46
#define DW_AT_specification        0x47
#define DW_AT_static_link          0x48
#define DW_AT_type                 0x49
#define DW_AT_use_location         0x4a
#define DW_AT_variable_parameter   0x4b
#define DW_AT_virtuality           0x4c
#define DW_AT_vtable_elem_location 0x4d
#define DW_AT_allocated            0x4e // DWARF 3 additions start
#define DW_AT_associated           0x4f
#define DW_AT_data_location        0x50
#define DW_AT_byte_stride          0x51
#define DW_AT_entry_pc             0x52
#define DW_AT_use_UTF8             0x53
#define DW_AT_extension            0x54
#define DW_AT_ranges               0x55
#define DW_AT_trampoline           0x56
#define DW_AT_call_column          0x57
#define DW_AT_call_file            0x58
#define DW_AT_call_line            0x59
#define DW_AT_description          0x5a
#define DW_AT_binary_scale         0x5b
#define DW_AT_decimal_scale        0x5c
#define DW_AT_small                0x5d
#define DW_AT_decimal_sign         0x5e
#define DW_AT_digit_count          0x5f
#define DW_AT_picture_string       0x60
#define DW_AT_mutable              0x61
#define DW_AT_threads_scaled       0x62
#define DW_AT_explicit             0x63
#define DW_AT_object_pointer       0x64
#define DW_AT_endianity            0x65
#define DW_AT_elemental            0x66
#define DW_AT_pure                 0x67
#define DW_AT_recursive            0x68 // DWARF 3 additions end
#define DW_AT_signature            0x69
#define DW_AT_main_subprogram      0x6a
#define DW_AT_data_bit_offset      0x6b
#define DW_AT_const_expr           0x6c
#define DW_AT_enum_class           0x6d
#define DW_AT_linkage_name         0x6e

#define DW_AT_string_length_bit_size  0x6f
#define DW_AT_string_length_byte_size 0x70
#define DW_AT_rank                    0x71
#define DW_AT_str_offsets_base        0x72
#define DW_AT_addr_base               0x73
#define DW_AT_rnglists_base           0x74
// #define Reserved 0x75 Unused
#define DW_AT_dwo_name              0x76
#define DW_AT_reference             0x77
#define DW_AT_rvalue_reference      0x78
#define DW_AT_macros                0x79
#define DW_AT_call_all_calls        0x7a
#define DW_AT_call_all_source_calls 0x7b
#define DW_AT_call_all_tail_calls   0x7c
#define DW_AT_call_return_pc        0x7d
#define DW_AT_call_value            0x7e
#define DW_AT_call_origin           0x7f
#define DW_AT_call_parameter        0x80
#define DW_AT_call_pc               0x81
#define DW_AT_call_tail_call        0x82
#define DW_AT_call_target           0x83
#define DW_AT_call_target_clobbered 0x84
#define DW_AT_call_data_location    0x85
#define DW_AT_call_data_value       0x86
#define DW_AT_noreturn              0x87
#define DW_AT_alignment             0x88
#define DW_AT_export_symbols        0x89
#define DW_AT_deleted               0x8a
#define DW_AT_defaulted             0x8b
#define DW_AT_loclists_base         0x8c

/* <_lo_user ; _hi_user> Interval is reserved for vendor extensions */
#define DW_AT_lo_user 0x2000
// extensions:
#define DW_AT_MIPS_linkage_name              0x2007 // Same as DWARF4 DW_AT_linkage_name
#define DW_AT_GNU_call_site_value            0x2111
#define DW_AT_GNU_call_site_data_value       0x2112
#define DW_AT_GNU_call_site_target           0x2113
#define DW_AT_GNU_call_site_target_clobbered 0x2114
#define DW_AT_GNU_tail_call                  0x2115
#define DW_AT_GNU_all_tail_call_sites        0x2116
#define DW_AT_GNU_all_call_sites             0x2117
#define DW_AT_GNU_all_source_call_sites      0x2118
#define DW_AT_GNU_macros                     0x2119
#define DW_AT_GNU_deleted                    0x211a
#define DW_AT_GNU_dwo_name                   0x2130
#define DW_AT_GNU_dwo_id                     0x2131
#define DW_AT_GNU_ranges_base                0x2132
#define DW_AT_GNU_addr_base                  0x2133
#define DW_AT_GNU_pubnames                   0x2134
#define DW_AT_GNU_pubtypes                   0x2135
#define DW_AT_hi_user                        0x3fff

#define DW_FORM_addr           0x01
#define DW_FORM_block2         0x03
#define DW_FORM_block4         0x04
#define DW_FORM_data2          0x05
#define DW_FORM_data4          0x06
#define DW_FORM_data8          0x07
#define DW_FORM_string         0x08
#define DW_FORM_block          0x09
#define DW_FORM_block1         0x0a
#define DW_FORM_data1          0x0b
#define DW_FORM_flag           0x0c
#define DW_FORM_sdata          0x0d
#define DW_FORM_strp           0x0e
#define DW_FORM_udata          0x0f
#define DW_FORM_ref_addr       0x10
#define DW_FORM_ref1           0x11
#define DW_FORM_ref2           0x12
#define DW_FORM_ref4           0x13
#define DW_FORM_ref8           0x14
#define DW_FORM_ref_udata      0x15
#define DW_FORM_indirect       0x16
#define DW_FORM_sec_offset     0x17 // DWARF 4 new attribute for section offset
#define DW_FORM_exprloc        0x18
#define DW_FORM_flag_present   0x19
#define DW_FORM_strx           0x1a
#define DW_FORM_addrx          0x1b
#define DW_FORM_ref_sup4       0x1c
#define DW_FORM_strp_sup       0x1d
#define DW_FORM_data16         0x1e
#define DW_FORM_line_ptr       0x1f
#define DW_FORM_ref_sig8       0x20
#define DW_FORM_implicit_const 0x21
#define DW_FORM_loclistx       0x22
#define DW_FORM_rnglistx       0x23
#define DW_FORM_ref_sup8       0x24
#define DW_FORM_strx1          0x25
#define DW_FORM_strx2          0x26
#define DW_FORM_strx3          0x27
#define DW_FORM_strx4          0x28
#define DW_FORM_addrx1         0x29
#define DW_FORM_addrx2         0x2a
#define DW_FORM_addrx3         0x2b
#define DW_FORM_addrx4         0x2c

#define DW_OP_addr                0x03
#define DW_OP_deref               0x06
#define DW_OP_const1u             0x08
#define DW_OP_const1s             0x09
#define DW_OP_const2u             0x0a
#define DW_OP_const2s             0x0b
#define DW_OP_const4u             0x0c
#define DW_OP_const4s             0x0d
#define DW_OP_const8u             0x0e
#define DW_OP_const8s             0x0f
#define DW_OP_constu              0x10
#define DW_OP_consts              0x11
#define DW_OP_dup                 0x12
#define DW_OP_drop                0x13
#define DW_OP_over                0x14
#define DW_OP_pick                0x15
#define DW_OP_swap                0x16
#define DW_OP_rot                 0x17
#define DW_OP_xderef              0x18
#define DW_OP_abs                 0x19
#define DW_OP_and                 0x1a
#define DW_OP_div                 0x1b
#define DW_OP_minus               0x1c
#define DW_OP_mod                 0x1d
#define DW_OP_mul                 0x1e
#define DW_OP_neg                 0x1f
#define DW_OP_not                 0x20
#define DW_OP_or                  0x21
#define DW_OP_plus                0x22
#define DW_OP_plus_uconst         0x23
#define DW_OP_shl                 0x24
#define DW_OP_shr                 0x25
#define DW_OP_shra                0x26
#define DW_OP_xor                 0x27
#define DW_OP_skip                0x2f
#define DW_OP_bra                 0x28
#define DW_OP_eq                  0x29
#define DW_OP_ge                  0x2a
#define DW_OP_gt                  0x2b
#define DW_OP_le                  0x2c
#define DW_OP_lt                  0x2d
#define DW_OP_ne                  0x2e
#define DW_OP_lit0                0x30
#define DW_OP_lit1                0x31
#define DW_OP_lit2                0x32
#define DW_OP_lit3                0x33
#define DW_OP_lit4                0x34
#define DW_OP_lit5                0x35
#define DW_OP_lit6                0x36
#define DW_OP_lit7                0x37
#define DW_OP_lit8                0x38
#define DW_OP_lit9                0x39
#define DW_OP_lit10               0x3a
#define DW_OP_lit11               0x3b
#define DW_OP_lit12               0x3c
#define DW_OP_lit13               0x3d
#define DW_OP_lit14               0x3e
#define DW_OP_lit15               0x3f
#define DW_OP_lit16               0x40
#define DW_OP_lit17               0x41
#define DW_OP_lit18               0x42
#define DW_OP_lit19               0x43
#define DW_OP_lit20               0x44
#define DW_OP_lit21               0x45
#define DW_OP_lit22               0x46
#define DW_OP_lit23               0x47
#define DW_OP_lit24               0x48
#define DW_OP_lit25               0x49
#define DW_OP_lit26               0x4a
#define DW_OP_lit27               0x4b
#define DW_OP_lit28               0x4c
#define DW_OP_lit29               0x4d
#define DW_OP_lit30               0x4e
#define DW_OP_lit31               0x4f
#define DW_OP_reg0                0x50
#define DW_OP_reg1                0x51
#define DW_OP_reg2                0x52
#define DW_OP_reg3                0x53
#define DW_OP_reg4                0x54
#define DW_OP_reg5                0x55
#define DW_OP_reg6                0x56
#define DW_OP_reg7                0x57
#define DW_OP_reg8                0x58
#define DW_OP_reg9                0x59
#define DW_OP_reg10               0x5a
#define DW_OP_reg11               0x5b
#define DW_OP_reg12               0x5c
#define DW_OP_reg13               0x5d
#define DW_OP_reg14               0x5e
#define DW_OP_reg15               0x5f
#define DW_OP_reg16               0x60
#define DW_OP_reg17               0x61
#define DW_OP_reg18               0x62
#define DW_OP_reg19               0x63
#define DW_OP_reg20               0x64
#define DW_OP_reg21               0x65
#define DW_OP_reg22               0x66
#define DW_OP_reg23               0x67
#define DW_OP_reg24               0x68
#define DW_OP_reg25               0x69
#define DW_OP_reg26               0x6a
#define DW_OP_reg27               0x6b
#define DW_OP_reg28               0x6c
#define DW_OP_reg29               0x6d
#define DW_OP_reg30               0x6e
#define DW_OP_reg31               0x6f
#define DW_OP_breg0               0x70
#define DW_OP_breg1               0x71
#define DW_OP_breg2               0x72
#define DW_OP_breg3               0x73
#define DW_OP_breg4               0x74
#define DW_OP_breg5               0x75
#define DW_OP_breg6               0x76
#define DW_OP_breg7               0x77
#define DW_OP_breg8               0x78
#define DW_OP_breg9               0x79
#define DW_OP_breg10              0x7a
#define DW_OP_breg11              0x7b
#define DW_OP_breg12              0x7c
#define DW_OP_breg13              0x7d
#define DW_OP_breg14              0x7e
#define DW_OP_breg15              0x7f
#define DW_OP_breg16              0x80
#define DW_OP_breg17              0x81
#define DW_OP_breg18              0x82
#define DW_OP_breg19              0x83
#define DW_OP_breg20              0x84
#define DW_OP_breg21              0x85
#define DW_OP_breg22              0x86
#define DW_OP_breg23              0x87
#define DW_OP_breg24              0x88
#define DW_OP_breg25              0x89
#define DW_OP_breg26              0x8a
#define DW_OP_breg27              0x8b
#define DW_OP_breg28              0x8c
#define DW_OP_breg29              0x8d
#define DW_OP_breg30              0x8e
#define DW_OP_breg31              0x8f
#define DW_OP_regx                0x90
#define DW_OP_fbreg               0x91
#define DW_OP_bregx               0x92
#define DW_OP_piece               0x93
#define DW_OP_deref_size          0x94
#define DW_OP_xderef_size         0x95
#define DW_OP_nop                 0x96
#define DW_OP_push_object_address 0x97
#define DW_OP_call2               0x98
#define DW_OP_call4               0x99
#define DW_OP_call_ref            0x9a
#define DW_OP_form_tls_address    0x9b
#define DW_OP_call_frame_cfa      0x9c
#define DW_OP_bit_piece           0x9d
#define DW_OP_implicit_value      0x9e
#define DW_OP_stack_value         0x9f

/* <_lo_user ; _hi_user> Interval is reserved for vendor extensions */
#define DW_OP_lo_user 0xe0
#define DW_OP_hi_user 0xff

#define DW_ATE_address         0x01
#define DW_ATE_boolean         0x02
#define DW_ATE_complex_float   0x03
#define DW_ATE_float           0x04
#define DW_ATE_signed          0x05
#define DW_ATE_signed_char     0x06
#define DW_ATE_unsigned        0x07
#define DW_ATE_unsigned_char   0x08
#define DW_ATE_imaginary_float 0x09
#define DW_ATE_packed_decimal  0x0a
#define DW_ATE_numeric_string  0x0b
#define DW_ATE_edited          0x0c
#define DW_ATE_signed_fixed    0x0d
#define DW_ATE_unsigned_fixed  0x0e
#define DW_ATE_decimal_float   0x0f
#define DW_ATE_UTF             0x10

/* <_lo_user ; _hi_user> Interval is reserved for vendor extensions */
#define DW_ATE_lo_user 0x80
#define DW_ATE_hi_user 0xff

#define DW_DS_unsigned           0x01
#define DW_DS_leading_overpunch  0x02
#define DW_DS_trailing_overpunch 0x03
#define DW_DS_leading_separate   0x04
#define DW_DS_trailing_separate  0x05

#define DW_END_default 0x00
#define DW_END_big     0x01
#define DW_END_little  0x02

/* <_lo_user ; _hi_user> Interval is reserved for vendor extensions */
#define DW_END_lo_user 0x40
#define DW_END_hi_user 0xff

#define DW_ACCESS_public    0x01
#define DW_ACCESS_protected 0x02
#define DW_ACCESS_private   0x03

#define DW_VIS_local     0x01
#define DW_VIS_exported  0x02
#define DW_VIS_qualified 0x03

#define DW_VIRTUALITY_none         0x00
#define DW_VIRTUALITY_virtual      0x01
#define DW_VIRTUALITY_pure_virtual 0x02

#define DW_LANG_C89            0x0001
#define DW_LANG_C              0x0002
#define DW_LANG_Ada83          0x0003
#define DW_LANG_C_plus_plus    0x0004
#define DW_LANG_Cobol74        0x0005
#define DW_LANG_Cobol85        0x0006
#define DW_LANG_Fortran77      0x0007
#define DW_LANG_Fortran90      0x0008
#define DW_LANG_Pascal83       0x0009
#define DW_LANG_Modula2        0x000a
#define DW_LANG_Java           0x000b
#define DW_LANG_C99            0x000c
#define DW_LANG_Ada95          0x000d
#define DW_LANG_Fortran95      0x000e
#define DW_LANG_PLI            0x000f
#define DW_LANG_ObjC           0x0010
#define DW_LANG_ObjC_plus_plus 0x0011
#define DW_LANG_UPC            0x0012
#define DW_LANG_D              0x0013
#define DW_LANG_Python         0x0014
#define DW_LANG_Rust           0x001c
#define DW_LANG_C11            0x001d
#define DW_LANG_Swift          0x001e
#define DW_LANG_Julia          0x001f
#define DW_LANG_Dylan          0x0020
#define DW_LANG_C_plus_plus_14 0x0021
#define DW_LANG_Fortran03      0x0022
#define DW_LANG_Fortran08      0x0023
#define DW_LANG_lo_user        0x8000
#define DW_LANG_hi_user        0xffff

#define DW_ID_case_sensitive   0x00
#define DW_ID_up_case          0x01
#define DW_ID_down_case        0x02
#define DW_ID_case_insensitive 0x03

#define DW_CC_normal  0x01
#define DW_CC_program 0x02
#define DW_CC_nocall  0x03
#define DW_CC_lo_user 0x40
#define DW_CC_hi_user 0xff

#define DW_INL_not_inlined          0x00
#define DW_INL_inlined              0x01
#define DW_INL_declared_not_inlined 0x02
#define DW_INL_declared_inlined     0x03

#define DW_ORD_row_major 0x00
#define DW_ORD_col_major 0x01

#define DW_DSC_label 0x00
#define DW_DSC_range 0x01

#define DW_MACINFO_define     0x01
#define DW_MACINFO_undef      0x02
#define DW_MACINFO_start_file 0x03
#define DW_MACINFO_end_file   0x04
#define DW_MACINFO_vendor_ext 0xff

#define DW_CFA_advance_loc 0x40
#define DW_CFA_offset      0x80
#define DW_CFA_restore     0xc0

#define DW_CFA_nop                0x00
#define DW_CFA_set_loc            0x01
#define DW_CFA_advance_loc1       0x02
#define DW_CFA_advance_loc2       0x03
#define DW_CFA_advance_loc4       0x04
#define DW_CFA_offse_extended     0x05
#define DW_CFA_restore_extended   0x06
#define DW_CFA_undefined          0x07
#define DW_CFA_same_value         0x08
#define DW_CFA_register           0x09
#define DW_CFA_remember_state     0x0a
#define DW_CFA_restore_state      0x0b
#define DW_CFA_def_cfa            0x0c
#define DW_CFA_def_cfa_register   0x0d
#define DW_CFA_def_cfa_offset     0x0e
#define DW_CFA_def_cfa_expression 0x0f
#define DW_CFA_expression         0x10
#define DW_CFA_offset_extended_sf 0x11
#define DW_CFA_def_cfa_sf         0x12
#define DW_CFA_def_cfa_offset_sf  0x13
#define DW_CFA_val_offset         0x14
#define DW_CFA_val_offset_sf      0x15
#define DW_CFA_val_expression     0x16
#define DW_CFA_lo_user            0x1c
#define DW_CFA_hi_user            0x3f

#define DW_UT_compile       0x01
#define DW_UT_type          0x02
#define DW_UT_partial       0x03
#define DW_UT_skeleton      0x04
#define DW_UT_split_compile 0x05
#define DW_UT_split_type    0x06
#define DW_UT_lo_user       0x80
#define DW_UT_hi_user       0xff

typedef struct {
	ut32 total_length;
	ut16 version;
	ut32 plen;
	ut8 mininstlen;
	ut8 is_stmt;
	char line_base;
	ut8 line_range;
	ut8 opcode_base;
	ut32 oplentable[12];
	const char **incdirs;
	const char *file[128];
} RzBinDwarfInfoHeader;
#define RZ_BIN_DWARF_INFO_HEADER_FILE_LENGTH(x) (sizeof(x->file) / sizeof(*(x->file)))

typedef struct {
	ut64 address;
	unsigned int file;
	unsigned int line;
	unsigned int column;
	int is_stmt;
	int basic_block;
	int end_sequence;
} RzBinDwarfState;

#define DWARF_INIT_LEN_64 0xffffffff
typedef union {
	ut32 offset32;
	ut64 offset64;
} section_offset;

typedef struct {
	ut64 unit_length;
	ut16 version;
	section_offset debug_abbrev_offset;
	ut8 address_size;
	ut64 type_signature;
	section_offset type_offset;
} RzBinDwarfTypeUnitHeader;

typedef struct {
	ut64 unit_length;
	ut16 version;
	section_offset debug_info_offset;
	ut8 address_size;
	ut8 segment_size;
} RzBinDwarfAddressRangeTable;

typedef struct {
	ut64 attr_name;
	ut64 attr_form;
	st64 special; // Used for values coded directly into abbrev
} RzBinDwarfAttrDef;

typedef struct {
	ut8 *data;
	ut64 length;
} RzBinDwarfBlock;

// http://www.dwarfstd.org/doc/DWARF4.pdf#page=29&zoom=100,0,0
typedef enum {
	DW_AT_KIND_ADDRESS,
	DW_AT_KIND_BLOCK,
	DW_AT_KIND_CONSTANT,
	DW_AT_KIND_EXPRLOC,
	DW_AT_KIND_FLAG,
	DW_AT_KIND_LINEPTR,
	DW_AT_KIND_LOCLISTPTR,
	DW_AT_KIND_MACPTR,
	DW_AT_KIND_RANGELISTPTR,
	DW_AT_KIND_REFERENCE,
	DW_AT_KIND_STRING,
} RzBinDwarfAttrKind;

typedef struct dwarf_attr_kind {
	ut64 attr_name;
	ut64 attr_form;
	RzBinDwarfAttrKind kind;
	/* This is subideal, as dw_form_data can be anything
	   we could lose information example: encoding signed
	   2 byte int into ut64 and then interpreting it as st64 TODO*/
	union {
		ut64 address;
		RzBinDwarfBlock block;
		ut64 uconstant;
		st64 sconstant;
		ut8 flag;
		ut64 reference;
		struct {
			const char *content;
			ut64 offset;
		} string;
	};
} RzBinDwarfAttrValue;

/**
 * \brief Safely get the string content from an RzBinDwarfAttrValue if it has one.
 */
static inline const char *rz_bin_dwarf_attr_value_get_string_content(const RzBinDwarfAttrValue *val) {
	rz_return_val_if_fail(val, NULL);
	return val->kind == DW_AT_KIND_STRING ? val->string.content : NULL;
}

typedef struct {
	// A 4-byte (or 8 byte for 64bit dwarf) unsigned length of the .debug_info contribution
	// for that compilation unit, not including the length field itself.
	ut64 length;
	ut16 version;
	// A 4-byte unsigned offset into the .debug_abbrev section.
	ut64 abbrev_offset;
	// A 1 - byte size of an address on the target architecture.If the system uses
	//  segmented addressing, this value represents the size of the offset portion of an address.
	ut8 address_size;
	ut8 unit_type; // DWARF 5 addition
	ut8 dwo_id; // DWARF 5 addition
	ut64 type_sig; // DWARF 5 addition
	ut64 type_offset; // DWARF 5 addition
	ut64 header_size; // excluding length field
	ut64 unit_offset;
	bool is_64bit;
} RzBinDwarfCompUnitHdr;

typedef struct {
	ut64 tag;
	ut64 abbrev_code;
	size_t count;
	size_t capacity;
	ut64 offset; // important for parsing types
	bool has_children; // important for parsing types
	RzBinDwarfAttrValue *attr_values;
} RzBinDwarfDie;

typedef struct {
	RzBinDwarfCompUnitHdr hdr;
	ut64 offset;
	size_t count;
	size_t capacity;
	RzBinDwarfDie *dies;
} RzBinDwarfCompUnit;

#define COMP_UNIT_CAPACITY  8
#define DEBUG_INFO_CAPACITY 8
typedef struct {
	size_t count;
	size_t capacity;
	RzBinDwarfCompUnit *comp_units;
	HtUP /*<ut64 offset, DwarfDie *die>*/ *lookup_table;
	size_t n_dwarf_dies;

	/**
	 * Cache mapping from an offset in the debug_line section to a string
	 * representing the DW_AT_comp_dir attribute of the compilation unit
	 * that references this particular line information.
	 */
	HtUP /*<ut64, char *>*/ *line_info_offset_comp_dir;
} RzBinDwarfDebugInfo;

#define ABBREV_DECL_CAP 8

typedef struct {
	ut64 code;
	ut64 tag;
	ut64 offset;
	ut8 has_children;
	size_t count;
	size_t capacity;
	RzBinDwarfAttrDef *defs;
} RzBinDwarfAbbrevDecl;

#define DEBUG_ABBREV_CAP 32

typedef struct {
	size_t count;
	size_t capacity;
	RzBinDwarfAbbrevDecl *decls;
} RzBinDwarfDebugAbbrev;

#define DWARF_FALSE 0
#define DWARF_TRUE  1

typedef struct {
	ut64 address;
	ut64 op_index;
	ut64 file;
	ut64 line;
	ut64 column;
	ut8 is_stmt;
	ut8 basic_block;
	ut8 end_sequence;
	ut8 prologue_end;
	ut8 epilogue_begin;
	ut64 isa;
	ut64 discriminator;
} RzBinDwarfSMRegisters;

typedef struct rz_bin_dwarf_line_file_entry_t {
	char *include_dir;
	char *name;
	ut32 id_idx, mod_time, file_len;
} RzBinDwarfLineFileEntry;

typedef struct {
	ut64 offset; //< offset inside the debug_line section, for references from outside
	ut64 unit_length;
	ut16 version;
	ut64 header_length;
	ut8 min_inst_len;
	ut8 max_ops_per_inst;
	ut8 default_is_stmt;
	st32 line_base;
	ut8 line_range;
	ut8 opcode_base;
	ut8 address_size;
	ut8 segment_selector_size;
	bool is_64bit;

	/**
	 * \brief The number of LEB128 operands for each of the standard opcodes
	 * From standard_opcode_lengths in DWARF 3 standard:
	 * The first element of the array corresponds to the opcode whose value is 1,
	 * and the last element corresponds to the opcode whose value is opcode_base - 1.
	 * Thus, the size of this array is opcode_base - 1.
	 */
	ut8 *std_opcode_lengths;

	char **include_dirs;
	size_t include_dirs_count;
	RzBinDwarfLineFileEntry *file_names;
	size_t file_names_count;
} RzBinDwarfLineHeader;

typedef enum {
	RZ_BIN_DWARF_LINE_OP_TYPE_SPEC, //< single byte op, no args
	RZ_BIN_DWARF_LINE_OP_TYPE_STD, //< fixed-size op, 0 or more leb128 args (except DW_LNS_fixed_advance_pc)
	RZ_BIN_DWARF_LINE_OP_TYPE_EXT //< variable-size op, arbitrary format of args
} RzBinDwarfLineOpType;

#define RZ_BIN_DWARF_LINE_OP_STD_ARGS_MAX 1

typedef struct {
	RzBinDwarfLineOpType type;
	ut8 opcode;
	struct {
		union {
			ut64 advance_pc; //< DW_LNS_advance_pc
			st64 advance_line; //< DW_LNS_advance_line
			ut64 set_file; //< DW_LNS_set_file
			ut64 set_column; //< DW_LNS_set_column
			ut64 fixed_advance_pc; //< DW_LNS_fixed_advance_pc
			ut64 set_isa; //< DW_LNS_set_isa
			ut64 set_address; //< DW_LNE_set_address
			struct {
				char *filename;
				ut64 dir_index;
			} define_file; //< DW_LNE_define_file
			ut64 set_discriminator; //< DW_LNE_set_discriminator
		};
	} args;
} RzBinDwarfLineOp;

/**
 * \brief DWARF 3 Standard Section 6.2 Line Number Information
 * This contains the entire raw line info for one compilation unit.
 */
typedef struct {
	RzBinDwarfLineHeader header;

	size_t ops_count;
	RzBinDwarfLineOp *ops;
} RzBinDwarfLineUnit;

/**
 * \brief Line info of all compilation units from the entire debug_line section
 */
typedef struct {
	RzList /*<RzBinDwarfLineUnit *>*/ *units;
	struct rz_bin_source_line_info_t *lines;
} RzBinDwarfLineInfo;

typedef enum {
	RZ_BIN_DWARF_LINE_INFO_MASK_BASIC = 0x0, //< parse just the headers
	RZ_BIN_DWARF_LINE_INFO_MASK_OPS = 0x1, //< decode and output all instructions
	RZ_BIN_DWARF_LINE_INFO_MASK_LINES = 0x2 //< run instructions and output the resulting line infos
} RzBinDwarfLineInfoMask;

typedef struct rz_bin_dwarf_loc_entry_t {
	ut64 start;
	ut64 end;
	RzBinDwarfBlock *expression;
} RzBinDwarfLocRange;

typedef struct rz_bin_dwarf_loc_list_t {
	RzList /*<RzBinDwarfLocRange *>*/ *list;
	ut64 offset;
} RzBinDwarfLocList;

typedef struct rz_bin_dwarf_arange_t {
	ut64 addr;
	ut64 length;
} RzBinDwarfARange;

/**
 * \brief DWARF 3 Standard Section 6.1.2 Lookup by Address
 */
typedef struct rz_bin_dwarf_arange_set_t {
	ut64 unit_length;
	bool is_64bit;
	ut16 version;
	ut64 debug_info_offset;
	ut8 address_size;
	ut8 segment_size;
	size_t aranges_count;
	RzBinDwarfARange *aranges;
} RzBinDwarfARangeSet;

#define rz_bin_dwarf_line_new(o, a, f, l) o->address = a, o->file = strdup(f ? f : ""), o->line = l, o->column = 0, o

RZ_API const char *rz_bin_dwarf_get_tag_name(ut64 tag);
RZ_API const char *rz_bin_dwarf_get_attr_name(ut64 attr_code);
RZ_API const char *rz_bin_dwarf_get_attr_form_name(ut64 form_code);
RZ_API const char *rz_bin_dwarf_get_unit_type_name(ut64 unit_type);
RZ_API const char *rz_bin_dwarf_get_lang_name(ut64 lang);

RZ_API RzList /*<RzBinDwarfARangeSet *>*/ *rz_bin_dwarf_parse_aranges(RzBinFile *binfile);
RZ_API RzBinDwarfDebugAbbrev *rz_bin_dwarf_parse_abbrev(RzBinFile *binfile);
RZ_API RzBinDwarfDebugInfo *rz_bin_dwarf_parse_info(RzBinFile *binfile, RzBinDwarfDebugAbbrev *da);
RZ_API HtUP /*<offset, RzBinDwarfLocList *>*/ *rz_bin_dwarf_parse_loc(RzBinFile *binfile, int addr_size);
RZ_API void rz_bin_dwarf_arange_set_free(RzBinDwarfARangeSet *set);
RZ_API void rz_bin_dwarf_loc_free(HtUP /*<offset, RzBinDwarfLocList *>*/ *loc_table);
RZ_API void rz_bin_dwarf_debug_info_free(RzBinDwarfDebugInfo *inf);
RZ_API void rz_bin_dwarf_debug_abbrev_free(RzBinDwarfDebugAbbrev *da);

/**
 * \brief Opaque cache for fully resolved filenames during Dwarf Line Info Generation
 * This cache stores full file paths to be optionally used in rz_bin_dwarf_line_op_run().
 * It is strictly associated with the RzBinDwarfLineHeader it has been created with in rz_bin_dwarf_line_header_new_file_cache()
 * and must be freed with the same header in rz_bin_dwarf_line_header_free_file_cache().
 */
typedef char **RzBinDwarfLineFileCache;

RZ_API RzBinDwarfLineInfo *rz_bin_dwarf_parse_line(RzBinFile *binfile, RZ_NULLABLE RzBinDwarfDebugInfo *info, RzBinDwarfLineInfoMask mask);
RZ_API char *rz_bin_dwarf_line_header_get_full_file_path(RZ_NULLABLE const RzBinDwarfDebugInfo *info, const RzBinDwarfLineHeader *header, ut64 file_index);
RZ_API ut64 rz_bin_dwarf_line_header_get_adj_opcode(const RzBinDwarfLineHeader *header, ut8 opcode);
RZ_API ut64 rz_bin_dwarf_line_header_get_spec_op_advance_pc(const RzBinDwarfLineHeader *header, ut8 opcode);
RZ_API st64 rz_bin_dwarf_line_header_get_spec_op_advance_line(const RzBinDwarfLineHeader *header, ut8 opcode);
RZ_API void rz_bin_dwarf_line_header_reset_regs(const RzBinDwarfLineHeader *hdr, RzBinDwarfSMRegisters *regs);
RZ_API RzBinDwarfLineFileCache rz_bin_dwarf_line_header_new_file_cache(const RzBinDwarfLineHeader *hdr);
RZ_API void rz_bin_dwarf_line_header_free_file_cache(const RzBinDwarfLineHeader *hdr, RzBinDwarfLineFileCache fnc);
RZ_API bool rz_bin_dwarf_line_op_run(const RzBinDwarfLineHeader *hdr, RzBinDwarfSMRegisters *regs, RzBinDwarfLineOp *op,
	RZ_NULLABLE struct rz_bin_source_line_info_builder_t *bob, RZ_NULLABLE RzBinDwarfDebugInfo *info, RZ_NULLABLE RzBinDwarfLineFileCache fnc);
RZ_API void rz_bin_dwarf_line_op_fini(RzBinDwarfLineOp *op);
RZ_API void rz_bin_dwarf_line_info_free(RzBinDwarfLineInfo *li);

#ifdef __cplusplus
}
#endif

#endif
