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|
(* *********************************************************************)
(* *)
(* The Compcert verified compiler *)
(* *)
(* Bernhard Schommer, AbsInt Angewandte Informatik GmbH *)
(* *)
(* AbsInt Angewandte Informatik GmbH. All rights reserved. This file *)
(* is distributed under the terms of the INRIA Non-Commercial *)
(* License Agreement. *)
(* *)
(* *********************************************************************)
(* Types used for writing dwarf debug information *)
open Camlcoq
open Sections
(* Basic types for the value of attributes *)
type constant = int
type flag = bool
type reference = int
type encoding =
| DW_ATE_address
| DW_ATE_boolean
| DW_ATE_complex_float
| DW_ATE_float
| DW_ATE_signed
| DW_ATE_signed_char
| DW_ATE_unsigned
| DW_ATE_unsigned_char
type address = int
type location_expression =
| DW_OP_plus_uconst of constant
| DW_OP_bregx of constant * int32
| DW_OP_piece of constant
| DW_OP_reg of constant
type location_value =
| LocSymbol of atom
| LocRef of address
| LocSimple of location_expression
| LocList of location_expression list
type data_location_value =
| DataLocBlock of location_expression
| DataLocRef of reference
type bound_value =
| BoundConst of constant
| BoundRef of reference
type string_const =
| Simple_string of string
| Offset_string of reference * string
type file_loc =
| Diab_file_loc of constant * constant
| Gnu_file_loc of constant * constant
type dw_form =
| DW_FORM_addr
| DW_FORM_block2
| DW_FORM_block4
| DW_FORM_data2
| DW_FORM_data4
| DW_FORM_data8
| DW_FORM_string
| DW_FORM_block
| DW_FORM_block1
| DW_FORM_data1
| DW_FORM_flag
| DW_FORM_sdata
| DW_FORM_strp
| DW_FORM_udata
| DW_FORM_ref_addr
| DW_FORM_ref1
| DW_FORM_ref2
| DW_FORM_ref4
| DW_FORM_ref8
| DW_FORM_ref_udata
| DW_FORM_ref_indirect
type dw_range =
| Pc_pair of reference * reference (* Simple low,high pc *)
| Offset of constant (* DWARF 3 version for different range *)
| Empty (* Needed for compilation units only containing variables *)
(* Types representing the attribute information per tag value *)
type dw_tag_array_type =
{
array_type: reference;
}
type dw_tag_base_type =
{
base_type_byte_size: constant;
base_type_encoding: encoding option;
base_type_name: string_const;
}
type dw_tag_compile_unit =
{
compile_unit_name: string_const;
compile_unit_range: dw_range;
compile_unit_dir: string_const;
compile_unit_prod_name: string_const;
}
type dw_tag_const_type =
{
const_type: reference;
}
type dw_tag_enumeration_type =
{
enumeration_file_loc: file_loc option;
enumeration_byte_size: constant;
enumeration_declaration: flag option;
enumeration_name: string_const;
}
type dw_tag_enumerator =
{
enumerator_value: constant;
enumerator_name: string_const;
}
type dw_tag_formal_parameter =
{
formal_parameter_artificial: flag option;
formal_parameter_name: string_const option;
formal_parameter_type: reference;
formal_parameter_variable_parameter: flag option;
formal_parameter_location: location_value option;
}
type dw_tag_label =
{
label_low_pc: address;
label_name: string_const;
}
type dw_tag_lexical_block =
{
lexical_block_range: dw_range;
}
type dw_tag_member =
{
member_byte_size: constant option;
member_bit_offset: constant option;
member_bit_size: constant option;
member_data_member_location: data_location_value option;
member_declaration: flag option;
member_name: string_const option;
member_type: reference;
}
type dw_tag_pointer_type =
{
pointer_type: reference;
}
type dw_tag_structure_type =
{
structure_file_loc: file_loc option;
structure_byte_size: constant option;
structure_declaration: flag option;
structure_name: string_const option;
}
type dw_tag_subprogram =
{
subprogram_file_loc: file_loc;
subprogram_external: flag option;
subprogram_name: string_const;
subprogram_prototyped: flag;
subprogram_type: reference option;
subprogram_range: dw_range;
}
type dw_tag_subrange_type =
{
subrange_type: reference;
subrange_upper_bound: bound_value option;
}
type dw_tag_subroutine_type =
{
subroutine_type: reference option;
subroutine_prototyped: flag;
}
type dw_tag_typedef =
{
typedef_file_loc: file_loc option;
typedef_name: string_const;
typedef_type: reference;
}
type dw_tag_union_type =
{
union_file_loc: file_loc option;
union_byte_size: constant option;
union_declaration: flag option;
union_name: string_const option;
}
type dw_tag_unspecified_parameter =
{
unspecified_parameter_artificial: flag option;
}
type dw_tag_variable =
{
variable_file_loc: file_loc;
variable_declaration: flag option;
variable_external: flag option;
variable_name: string_const;
variable_type: reference;
variable_location: location_value option;
}
type dw_tag_volatile_type =
{
volatile_type: reference;
}
type dw_tag =
| DW_TAG_array_type of dw_tag_array_type
| DW_TAG_base_type of dw_tag_base_type
| DW_TAG_compile_unit of dw_tag_compile_unit
| DW_TAG_const_type of dw_tag_const_type
| DW_TAG_enumeration_type of dw_tag_enumeration_type
| DW_TAG_enumerator of dw_tag_enumerator
| DW_TAG_formal_parameter of dw_tag_formal_parameter
| DW_TAG_label of dw_tag_label
| DW_TAG_lexical_block of dw_tag_lexical_block
| DW_TAG_member of dw_tag_member
| DW_TAG_pointer_type of dw_tag_pointer_type
| DW_TAG_structure_type of dw_tag_structure_type
| DW_TAG_subprogram of dw_tag_subprogram
| DW_TAG_subrange_type of dw_tag_subrange_type
| DW_TAG_subroutine_type of dw_tag_subroutine_type
| DW_TAG_typedef of dw_tag_typedef
| DW_TAG_union_type of dw_tag_union_type
| DW_TAG_unspecified_parameter of dw_tag_unspecified_parameter
| DW_TAG_variable of dw_tag_variable
| DW_TAG_volatile_type of dw_tag_volatile_type
(* The type of the entries. *)
type dw_entry =
{
tag: dw_tag;
children: dw_entry list;
id: reference;
}
(* The type for the location list. *)
type location_entry =
{
loc: (address * address * location_value) list;
loc_id: reference;
loc_sec_begin : address option;
}
type dw_locations = location_entry list
type range_entry =
| AddressRange of (address * address) list
| OffsetRange of reference * (address * address) list
type dw_ranges = (int * range_entry) list
type dw_string = (int * string) list
type diab_entry =
{
section_name: string;
start_label: int;
line_label: int;
diab_entry: dw_entry;
diab_locs: dw_locations;
}
type diab_entries = diab_entry list
type gnu_entries =
{
string_table: dw_string;
range_table: dw_ranges;
gnu_locs: dw_locations;
gnu_entry: dw_entry;
several_secs: bool;
}
type debug_entries =
| Diab of diab_entries
| Gnu of gnu_entries
(* The target specific functions for printing the debug information *)
module type DWARF_TARGET =
sig
val label: out_channel -> int -> unit
val section: out_channel -> section_name -> unit
val symbol: out_channel -> atom -> unit
val comment: string
val address: string
end
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