Source: dwarf.ml (p.linksem.0.8.doc.src.linksem

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6422 6423 6424 6425 6426 6427 6428 6429 6430 6431 6432 6433 6434 6435 6436 6437 6438 6439 6440 6441 6442 6443 6444 6445 6446 6447 6448 6449 6450 6451 6452 6453 6454 6455 6456 6457 6458 6459 6460 6461 6462 6463 6464 6465 6466 6467 6468 6469 6470 6471 6472 6473 6474 6475 6476 6477 6478 6479 6480 6481 6482 6483 6484 6485 6486 6487 6488 6489 6490 6491 6492 6493 6494 6495 6496 6497 6498 6499 6500 6501 6502 6503 6504 6505 6506 6507 6508 6509 6510 6511 6512 6513 6514 6515 6516 6517 6518 6519 6520 6521 6522 6523 6524 6525 6526 6527 6528 6529 6530 6531 6532 6533 6534 6535 6536 6537 6538 6539 6540 6541 6542 6543 6544 6545 6546 6547 6548 6549 6550 6551 6552 6553 6554 6555 6556 6557 6558 6559 6560 6561 6562 6563 6564 6565 6566 6567 6568 6569 6570 6571 6572 6573 6574 6575 6576 6577 6578 6579 6580 6581 6582 6583 6584 6585 6586 6587 6588 6589 6590 6591 6592 6593 6594 6595 6596 6597 6598 6599 6600 6601 6602 6603 6604 6605(*Generated by Lem from dwarf.lem.*) (* -*-tuareg-*- *) open Lem_basic_classes open Lem_bool open Lem_function open Lem_maybe open Lem_num open Lem_string open Lem_list (* TODO: check why this is not imported in ELF *) open Byte_sequence open Error open Hex_printing open Missing_pervasives open Show open Default_printing open Endianness open String_table open Elf_dynamic open Elf_file open Elf_header open Elf_program_header_table open Elf_relocation open Elf_section_header_table open Elf_symbol_table open Elf_types_native_uint (** ***************** experimental DWARF reading *********** *) (* This defines a representation of some of the DWARF debug information, with parsing functions to extract it from the byte sequences of the relevant ELF sections, and pretty-printing function to dump it in a human-readable form, similar to that of readelf. The main functions for this are: val extract_dwarf : elf64_file -> maybe dwarf val pp_dwarf : dwarf -> string It also defines evaluation of DWARF expressions and analysis functions to convert the variable location information to a form suitable for looking up variable names from machine addresses that arise during execution, including the call frame address calculation. The main types and functions for this are: type analysed_location_data val analyse_locations : dwarf -> analysed_location_data type evaluated_frame_info val evaluate_frame_info : dwarf -> evaluated_frame_info type dwarf_static val extract_dwarf_static : elf64_file -> maybe dwarf_static The last collects all the above - information that can be computed statically. Then to do lookup from addresses to source-code names, we have: type analysed_location_data_at_pc val analysed_locations_at_pc : evaluation_context -> dwarf_static -> natural -> analysed_location_data_at_pc val names_of_address : dwarf -> analysed_location_data_at_pc -> natural -> list string The definitions are deliberately simple-minded, to be quick to write, easy to see the correspondence to the DWARF text specification, and potentially support generation of theorem-prover definitions in future. They are in a pure functional style, making the information dependencies explicit. They are not written for performance, though they may be efficient enough for small examples as-is. They are written in Lem, and compiled from that to executable OCaml. The development follows the DWARF 4 pdf specification at http://www.dwarfstd.org/ though tweaked in places where our examples use earlier versions. It doesn't systematically cover all the DWARF versions. It doesn't cover the GNU extensions (at https://fedorahosted.org/elfutils/wiki/DwarfExtensions). The representation, parsing, and pretty printing are mostly complete for the data in these DWARF ELF sections: .debug_abbrev .debug_info .debug_types .debug_loc .debug_str .debug_ranges .debug_frame (without augmentations) .debug_line The following DWARF ELF sections are not covered: .debug_aranges .debug_macinfo .debug_pubnames .debug_pubtypes The evaluation of DWARF expressions covers only some of the operations - probably enough for common cases. The analysis of DWARF location data should be enough to look up names from the addresses of variables and formal parameters. It does not currently handle the DWARF type data, so will not be useful for accesses strictly within the extent of a variable or parameter. The 'dwarf' type gives a lightly parsed representation of some of the dwarf information, with the byte sequences of the above .debug_* sections parsed into a structured representation. That makes the list and tree structures explicit, and converts the various numeric types into just natural, integer, and byte sequences. The lem natural and integer could be replaced by unsigned and signed 64-bit types; that'd probably be better for execution but not for theorem-prover use. *) (* some spec ambiguities (more in comments in-line below): *) (* can a location list be referenced from multiple compilation units, with different base addresses? *) (** debug *) (* workaround debug.lem linking *) (*val print_endline : string -> unit*) let my_debug s:unit= () (*print_endline s*) let my_debug2 s:unit= () (*print_endline s*) let my_debug3 s:unit= () (*print_endline s*) let my_debug4 s:unit= (print_endline s) let my_debug5 s:unit= (print_endline s) (** ************************************************************ *) (** ** dwarf representation types **************************** *) (** ************************************************************ *) type dwarf_attribute_classes = | DWA_7_5_3 | DWA_address | DWA_block | DWA_constant | DWA_dash | DWA_exprloc | DWA_flag | DWA_lineptr | DWA_loclistptr | DWA_macptr | DWA_rangelistptr | DWA_reference | DWA_string (* operations and expression evalution *) type operation_argument_type = | OAT_addr | OAT_dwarf_format_t | OAT_uint8 | OAT_uint16 | OAT_uint32 | OAT_uint64 | OAT_sint8 | OAT_sint16 | OAT_sint32 | OAT_sint64 | OAT_ULEB128 | OAT_SLEB128 | OAT_block type operation_argument_value = | OAV_natural of Nat_big_num.num | OAV_integer of Nat_big_num.num | OAV_block of Nat_big_num.num * byte_sequence0 type operation_stack = Nat_big_num.num list type arithmetic_context = { ac_bitwidth: Nat_big_num.num; ac_half: Nat_big_num.num; (* 2 ^ (ac_bitwidth -1) *) ac_all: Nat_big_num.num; (* 2 ^ ac_bitwidth *) ac_max: Nat_big_num.num; (* (2 ^ ac_bitwidth) -1 *) (* also the representation of -1 *) } type operation_semantics = | OpSem_lit | OpSem_deref | OpSem_stack of (arithmetic_context -> operation_stack -> operation_argument_value list -> operation_stack option) | OpSem_not_supported | OpSem_binary of (arithmetic_context -> Nat_big_num.num -> Nat_big_num.num -> Nat_big_num.num option) | OpSem_unary of (arithmetic_context -> Nat_big_num.num -> Nat_big_num.num option) | OpSem_opcode_lit of Nat_big_num.num | OpSem_reg | OpSem_breg | OpSem_bregx | OpSem_fbreg | OpSem_deref_size | OpSem_nop | OpSem_piece | OpSem_bit_piece | OpSem_implicit_value | OpSem_stack_value | OpSem_call_frame_cfa type operation = { op_code: Nat_big_num.num; op_string: string; op_argument_values: operation_argument_value list; op_semantics: operation_semantics; } (* the result of a location expression evaluation is a single_location (or failure) *) type simple_location = | SL_memory_address of Nat_big_num.num | SL_register of Nat_big_num.num | SL_implicit of byte_sequence0 (* used for implicit and stack values *) | SL_empty type composite_location_piece = | CLP_piece of Nat_big_num.num * simple_location | CLP_bit_piece of Nat_big_num.num * Nat_big_num.num * simple_location type single_location = | SL_simple of simple_location | SL_composite of composite_location_piece list (* location expression evaluation is a stack machine operating over the following state *) type state = { s_stack: operation_stack; s_value: simple_location; s_location_pieces: composite_location_piece list; } (* location expression evaluation can involve register and memory reads, via the following interface *) type 'a register_read_result = | RRR_result of Nat_big_num.num | RRR_not_currently_available | RRR_bad_register_number type 'a memory_read_result = | MRR_result of Nat_big_num.num | MRR_not_currently_available | MRR_bad_address type evaluation_context = { read_register: Nat_big_num.num -> Nat_big_num.num register_read_result; read_memory: Nat_big_num.num -> Nat_big_num.num -> Nat_big_num.num memory_read_result; } (* dwarf sections *) type dwarf_format = | Dwarf32 | Dwarf64 (* .debug_abbrev section *) type abbreviation_declaration = { ad_abbreviation_code: Nat_big_num.num; ad_tag: Nat_big_num.num; ad_has_children: bool; ad_attribute_specifications: (Nat_big_num.num * Nat_big_num.num) list; } type abbreviations_table = { at_offset: Nat_big_num.num; at_table: abbreviation_declaration list; } (* .debug_info section *) type attribute_value = (* following Figure 3 *) | AV_addr of Nat_big_num.num | AV_block of Nat_big_num.num * byte_sequence0 | AV_constantN of Nat_big_num.num * byte_sequence0 | AV_constant_SLEB128 of Nat_big_num.num | AV_constant_ULEB128 of Nat_big_num.num | AV_exprloc of Nat_big_num.num * byte_sequence0 | AV_flag of bool | AV_ref of Nat_big_num.num | AV_ref_addr of Nat_big_num.num (* dwarf_format dependent *) | AV_ref_sig8 of Nat_big_num.num | AV_sec_offset of Nat_big_num.num | AV_string of byte_sequence0 (* not including terminating null *) | AV_strp of Nat_big_num.num (* dwarf_format dependent *) type die = { die_offset: Nat_big_num.num; die_abbreviation_code: Nat_big_num.num; die_abbreviation_declaration: abbreviation_declaration; die_attribute_values: (Nat_big_num.num (*pos*) * attribute_value) list; die_children: die list; } type die_index = (Nat_big_num.num, ( die list * die)) Pmap.map type compilation_unit_header = { cuh_offset: Nat_big_num.num; cuh_dwarf_format: dwarf_format; cuh_unit_length: Nat_big_num.num; cuh_version: Nat_big_num.num; cuh_debug_abbrev_offset: Nat_big_num.num; cuh_address_size: Nat_big_num.num; } type compilation_unit = { cu_header: compilation_unit_header; cu_abbreviations_table: abbreviations_table; cu_die: die; cu_index: die_index } type compilation_units = compilation_unit list (* .debug_type section *) type type_unit_header = { tuh_cuh: compilation_unit_header; tuh_type_signature: Nat_big_num.num; tuh_type_offset: Nat_big_num.num; } type type_unit = { tu_header: type_unit_header; tu_abbreviations_table: abbreviations_table; tu_die: die; } type type_units = type_unit list (* .debug_loc section *) type single_location_description = byte_sequence0 type location_list_entry = { lle_beginning_address_offset: Nat_big_num.num; lle_ending_address_offset: Nat_big_num.num; lle_single_location_description: single_location_description; } type base_address_selection_entry = { base_address: Nat_big_num.num; } type location_list_item = | LLI_lle of location_list_entry | LLI_base of base_address_selection_entry type location_list = Nat_big_num.num (*offset*) * location_list_item list type location_list_list = location_list list (* .debug_ranges section *) type range_list_entry = { rle_beginning_address_offset: Nat_big_num.num; rle_ending_address_offset: Nat_big_num.num; } type range_list_item = | RLI_rle of range_list_entry | RLI_base of base_address_selection_entry type range_list = Nat_big_num.num (*offset (of range_list from start of .debug_ranges section?) *) * range_list_item list type range_list_list = range_list list (* .debug_frame section: call frame instructions *) type cfa_address = Nat_big_num.num type cfa_block = byte_sequence0 type cfa_delta = Nat_big_num.num type cfa_offset = Nat_big_num.num type cfa_register = Nat_big_num.num type cfa_sfoffset = Nat_big_num.num type call_frame_argument_type = | CFAT_address | CFAT_delta1 | CFAT_delta2 | CFAT_delta4 | CFAT_delta_ULEB128 | CFAT_offset (*ULEB128*) | CFAT_sfoffset (*SLEB128*) | CFAT_register (*ULEB128*) | CFAT_block type call_frame_argument_value = | CFAV_address of cfa_address | CFAV_block of cfa_block | CFAV_delta of cfa_delta | CFAV_offset of cfa_offset | CFAV_register of cfa_register | CFAV_sfoffset of cfa_sfoffset type call_frame_instruction = | DW_CFA_advance_loc of cfa_delta | DW_CFA_offset of cfa_register * cfa_offset | DW_CFA_restore of cfa_register | DW_CFA_nop | DW_CFA_set_loc of cfa_address | DW_CFA_advance_loc1 of cfa_delta | DW_CFA_advance_loc2 of cfa_delta | DW_CFA_advance_loc4 of cfa_delta | DW_CFA_offset_extended of cfa_register * cfa_offset | DW_CFA_restore_extended of cfa_register | DW_CFA_undefined of cfa_register | DW_CFA_same_value of cfa_register | DW_CFA_register of cfa_register * cfa_register | DW_CFA_remember_state | DW_CFA_restore_state | DW_CFA_def_cfa of cfa_register * cfa_offset | DW_CFA_def_cfa_register of cfa_register | DW_CFA_def_cfa_offset of cfa_offset | DW_CFA_def_cfa_expression of cfa_block | DW_CFA_expression of cfa_register * cfa_block | DW_CFA_offset_extended_sf of cfa_register * cfa_sfoffset | DW_CFA_def_cfa_sf of cfa_register * cfa_sfoffset | DW_CFA_def_cfa_offset_sf of cfa_sfoffset | DW_CFA_val_offset of cfa_register * cfa_offset | DW_CFA_val_offset_sf of cfa_register * cfa_sfoffset | DW_CFA_val_expression of cfa_register * cfa_block | DW_CFA_AARCH64_negate_ra_state | DW_CFA_unknown of char (* .debug_frame section: top-level *) type cie = { cie_offset: Nat_big_num.num; cie_length: Nat_big_num.num; cie_id: Nat_big_num.num; cie_version: Nat_big_num.num; cie_augmentation: byte_sequence0; (* not including terminating null *) cie_address_size: Nat_big_num.num option; cie_segment_size: Nat_big_num.num option; cie_code_alignment_factor: Nat_big_num.num; cie_data_alignment_factor: Nat_big_num.num; cie_return_address_register: cfa_register; cie_initial_instructions_bytes: byte_sequence0; cie_initial_instructions: call_frame_instruction list; } type fde = { fde_offset: Nat_big_num.num; fde_length: Nat_big_num.num; fde_cie_pointer: Nat_big_num.num; fde_initial_location_segment_selector: Nat_big_num.num option; fde_initial_location_address: Nat_big_num.num; fde_address_range: Nat_big_num.num; fde_instructions_bytes: byte_sequence0; fde_instructions: call_frame_instruction list; } type frame_info_element = | FIE_cie of cie | FIE_fde of fde type frame_info = frame_info_element list (* evaluated cfa data *) type cfa_rule = | CR_undefined | CR_register of cfa_register * Nat_big_num.num | CR_expression of single_location_description type register_rule = | RR_undefined (*A register that has this rule has no recoverable value in the previous frame. (By convention, it is not preserved by a callee.)*) | RR_same_value (*This register has not been modified from the previous frame. (By convention, it is preserved by the callee, but the callee has not modified it.)*) | RR_offset of Nat_big_num.num (* The previous value of this register is saved at the address CFA+N where CFA is the current CFA value and N is a signed offset.*) | RR_val_offset of Nat_big_num.num (* The previous value of this register is the value CFA+N where CFA is the current CFA value and N is a signed offset.*) | RR_register of Nat_big_num.num (* The previous value of this register is stored in another register numbered R.*) | RR_expression of single_location_description (* The previous value of this register is located at the address produced by executing the DWARF expression E.*) | RR_val_expression of single_location_description (* The previous value of this register is the value produced by executing the DWARF expression E.*) | RR_architectural (*The rule is defined externally to this specification by the augmenter*) type register_rule_map = (cfa_register * register_rule) list type cfa_table_row = { ctr_loc: Nat_big_num.num; ctr_cfa: cfa_rule; ctr_regs: register_rule_map; } type cfa_state = { cs_current_row: cfa_table_row; cs_previous_rows: cfa_table_row list; cs_initial_instructions_row: cfa_table_row; cs_row_stack: cfa_table_row list; } type evaluated_frame_info = (fde * cfa_table_row list) list (* line number *) type line_number_argument_type = | LNAT_address | LNAT_ULEB128 | LNAT_SLEB128 | LNAT_uint16 | LNAT_string type line_number_argument_value = | LNAV_address of Nat_big_num.num | LNAV_ULEB128 of Nat_big_num.num | LNAV_SLEB128 of Nat_big_num.num | LNAV_uint16 of Nat_big_num.num | LNAV_string of byte_sequence0 (* not including terminating null *) type line_number_operation = (* standard *) | DW_LNS_copy | DW_LNS_advance_pc of Nat_big_num.num | DW_LNS_advance_line of Nat_big_num.num | DW_LNS_set_file of Nat_big_num.num | DW_LNS_set_column of Nat_big_num.num | DW_LNS_negate_stmt | DW_LNS_set_basic_block | DW_LNS_const_add_pc | DW_LNS_fixed_advance_pc of Nat_big_num.num | DW_LNS_set_prologue_end | DW_LNS_set_epilogue_begin | DW_LNS_set_isa of Nat_big_num.num (* extended *) | DW_LNE_end_sequence | DW_LNE_set_address of Nat_big_num.num | DW_LNE_define_file of byte_sequence0 * Nat_big_num.num * Nat_big_num.num * Nat_big_num.num | DW_LNE_set_discriminator of Nat_big_num.num (* special *) | DW_LN_special of Nat_big_num.num (* the adjusted opcode *) type line_number_file_entry = { lnfe_path: byte_sequence0; lnfe_directory_index: Nat_big_num.num; lnfe_last_modification: Nat_big_num.num; lnfe_length: Nat_big_num.num; } type line_number_header = { lnh_offset: Nat_big_num.num; lnh_dwarf_format: dwarf_format; lnh_unit_length: Nat_big_num.num; lnh_version: Nat_big_num.num; lnh_header_length: Nat_big_num.num; lnh_minimum_instruction_length: Nat_big_num.num; lnh_maximum_operations_per_instruction: Nat_big_num.num; lnh_default_is_stmt: bool; lnh_line_base: Nat_big_num.num; lnh_line_range: Nat_big_num.num; lnh_opcode_base: Nat_big_num.num; lnh_standard_opcode_lengths: Nat_big_num.num list; lnh_include_directories: (byte_sequence0) list; lnh_file_entries: line_number_file_entry list; lnh_comp_dir: string option; (* passed down from cu DW_AT_comp_dir *) } type line_number_program = { lnp_header: line_number_header; lnp_operations: line_number_operation list; } (* line number evaluation *) type line_number_registers = { lnr_address: Nat_big_num.num; lnr_op_index: Nat_big_num.num; lnr_file: Nat_big_num.num; lnr_line: Nat_big_num.num; lnr_column: Nat_big_num.num; lnr_is_stmt: bool; lnr_basic_block: bool; lnr_end_sequence: bool; lnr_prologue_end: bool; lnr_epilogue_begin: bool; lnr_isa: Nat_big_num.num; lnr_discriminator: Nat_big_num.num; } type unpacked_file_entry = ( string option (*comp_dir*)) * ( string option (*dir*)) * string (*file*) type unpacked_decl = unpacked_file_entry * int(*line*) * string(*subprogram name*) (* top-level collection of dwarf data *) type dwarf = { d_endianness: Endianness.endianness; (* from the ELF *) d_str: byte_sequence0; d_compilation_units: compilation_units; d_type_units: type_units; d_loc: location_list_list; d_ranges: range_list_list; d_frame_info: frame_info; d_line_info: line_number_program list; } (* analysed location data *) type analysed_location_data = ((compilation_unit * ( die list) * die) * ( (Nat_big_num.num * Nat_big_num.num * single_location_description)list)option) list type analysed_location_data_at_pc = ((compilation_unit * ( die list) * die) * (Nat_big_num.num * Nat_big_num.num * single_location_description * single_location error)) list (* evaluated line data *) type evaluated_line_info = (line_number_header * line_number_registers list) list (* all dwarf static data *) type dwarf_static = { ds_dwarf: dwarf; ds_analysed_location_data: analysed_location_data; ds_evaluated_frame_info: evaluated_frame_info; ds_evaluated_line_info: evaluated_line_info; ds_subprogram_line_extents: (unpacked_file_entry * (string * unpacked_file_entry * Nat_big_num.num) list ) list; } type dwarf_dynamic_at_pc = analysed_location_data_at_pc (** context for parsing and pp functions *) type p_context = { endianness: Endianness.endianness; } (* type descriptions *) (* NB these do not cover all the DWARF-expressible types; only some common C cases *) (* ignore base type DW_endianity and DW_bitsize for now *) type cupdie = compilation_unit * ( die list) * die type decl = { decl_file: string option; decl_line: Nat_big_num.num option; } type 't array_dimension = Nat_big_num.num option(*count*) * 't option(*subrange type*) type 't struct_union_member = cupdie * ( string option)(*mname*) * 't * Nat_big_num.num option(*data_member_location, non-Nothing for structs*) type struct_union_type_kind = | Atk_structure | Atk_union type enumeration_member = cupdie * ( string option)(*mname*) * Nat_big_num.num(*const_value*) type 't c_type_top = | CT_missing of cupdie | CT_base of cupdie * string(*name*) * Nat_big_num.num(*encoding*) * ( Nat_big_num.num option)(*byte_size*) | CT_pointer of cupdie * 't option | CT_const of cupdie * 't option | CT_volatile of cupdie * 't | CT_restrict of cupdie * 't | CT_typedef of cupdie * string(*name*) * 't * decl | CT_array of cupdie * 't * ( 't array_dimension) list | CT_struct_union of cupdie * struct_union_type_kind * ( string option)(*mname*) * ( Nat_big_num.num option)(*byte_size*) * decl * ( ( 't struct_union_member)list(*members*))option | CT_enumeration of cupdie * ( string option)(*mname*) * ( 't option)(*mtyp*) * ( Nat_big_num.num option)(*mbyte_size*) * decl * ( (enumeration_member)list(*members*))option | CT_subroutine of cupdie * (bool)(*prototyped*) * ( 't option)(*mresult_type*) * ( 't list)(*parameter_types*) * (bool)(*variable_parameter_list*) (* In the CT_struct_union and C_enumeration cases, the final maybe(list(...member)) is Nothing if the analysis has not been recursed into the members, and Just ... if it has - which will typically be only one level deep *) type c_type = | CT of ( c_type c_type_top) (* simple die tree *) (* this unifies variables and formal parameters, and also subprograms and inlined_subroutines (but not lexical_blocks). Debatable what's best *) (* not including DW_AT_low_pc/DW_AT_high_pc or DW_AT_ranges - might want that*) (* also not including per-instruction line number info *) type variable_or_formal_parameter_kind = | SVPK_var | SVPK_param type sdt_unspecified_parameter = unit type sdt_variable_or_formal_parameter = { svfp_cupdie : cupdie; svfp_name : string; svfp_kind : variable_or_formal_parameter_kind; svfp_type : c_type option; svfp_abstract_origin : sdt_variable_or_formal_parameter option; (* invariant: non-Nothing iff inlined *) svfp_const_value : Nat_big_num.num option; svfp_external : bool; svfp_declaration : bool; svfp_locations : ( (Nat_big_num.num * Nat_big_num.num * operation list (*the parsed single_location_description*))list)option; svfp_decl : unpacked_decl option; } type sdt_subroutine_kind = | SSK_subprogram | SSK_inlined_subroutine type sdt_subroutine = (* subprogram or inlined subroutine *) { ss_cupdie : cupdie; ss_name : string option; ss_kind : sdt_subroutine_kind; ss_call_site : unpacked_decl option; ss_abstract_origin : sdt_subroutine option; (* invariant: non-Nothing iff inlined *) ss_type : c_type option; ss_vars : sdt_variable_or_formal_parameter list; ss_pc_ranges : ( (Nat_big_num.num*Nat_big_num.num)list)option; ss_entry_address : Nat_big_num.num option; ss_unspecified_parameters : sdt_unspecified_parameter list; ss_subroutines : sdt_subroutine list; (* invariant: all inlined*) ss_lexical_blocks : sdt_lexical_block list; ss_decl : unpacked_decl option; ss_noreturn : bool; ss_external : bool; } and sdt_lexical_block = { slb_cupdie : cupdie; slb_vars : sdt_variable_or_formal_parameter list; (* invariant: all variables *) slb_pc_ranges : ( (Nat_big_num.num*Nat_big_num.num)list)option; slb_subroutines : sdt_subroutine list; (* invariant: all inlined*) slb_lexical_blocks : sdt_lexical_block list; } type sdt_compilation_unit = { scu_cupdie : cupdie; scu_name : string; scu_subroutines : sdt_subroutine list; (* invariant: none inlined(?) *) scu_vars : sdt_variable_or_formal_parameter list; scu_pc_ranges : ( (Nat_big_num.num*Nat_big_num.num)list)option; } type sdt_dwarf = { sd_compilation_units : sdt_compilation_unit list; } (* inlined subroutine data *) type inlined_subroutine_const_param = { iscp_abstract_origin: compilation_unit * ( die list) * die; iscp_value: Nat_big_num.num; } type inlined_subroutine = { is_inlined_subroutine: compilation_unit * ( die list) * die; is_abstract_origin: compilation_unit * ( die list) * die; is_inlined_subroutine_sdt: sdt_subroutine; is_inlined_subroutine_sdt_parents: sdt_subroutine list; is_name : string; is_call_file: unpacked_file_entry; is_call_line: Nat_big_num.num; is_pc_ranges: (Nat_big_num.num * Nat_big_num.num) list; is_const_params : inlined_subroutine_const_param list; } (* ignoring the nesting structure of inlined subroutines for now *) type inlined_subroutine_data = inlined_subroutine list type inlined_subroutine_data_by_range_entry = (Nat_big_num.num*Nat_big_num.num)(*range*) * (Nat_big_num.num*Nat_big_num.num) (*range m-of-n*) * inlined_subroutine type inlined_subroutine_data_by_range = inlined_subroutine_data_by_range_entry list (*type inlined_subroutine_data_at_pc = list ((compilation_unit * (list die) * die) * (natural * natural * single_location_description * error single_location))*) (** ************************************************************ *) (** ** missing pervasives ************************************ *) (** ************************************************************ *) (* natural version of List.index *) (*val index_natural : forall 'a. list 'a -> natural -> maybe 'a*) let rec index_natural l n:'a option= ((match l with | [] -> None | x :: xs -> if Nat_big_num.equal n( (Nat_big_num.of_int 0)) then Some x else index_natural xs (Nat_big_num.sub_nat n( (Nat_big_num.of_int 1))) )) let partialNaturalFromInteger (i:Nat_big_num.num) : Nat_big_num.num= (if Nat_big_num.less i( (Nat_big_num.of_int 0)) then failwith "partialNaturalFromInteger" else Nat_big_num.abs i) (*val natural_nat_shift_left : natural -> nat -> natural*) (*val natural_nat_shift_right : natural -> nat -> natural*) (** ************************************************************ *) (** ** endianness *************************************** *) (** ************************************************************ *) let p_context_of_d (d:dwarf) : p_context= ({ endianness = (d.d_endianness) }) (** ************************************************************ *) (** ** dwarf encodings *************************************** *) (** ************************************************************ *) (* these encoding tables are pasted from the DWARF 4 specification *) (* tag encoding *) let tag_encodings:(string*Nat_big_num.num)list= ([ ("DW_TAG_array_type" , natural_of_hex "0x01" ); ("DW_TAG_class_type" , natural_of_hex "0x02" ); ("DW_TAG_entry_point" , natural_of_hex "0x03" ); ("DW_TAG_enumeration_type" , natural_of_hex "0x04" ); ("DW_TAG_formal_parameter" , natural_of_hex "0x05" ); ("DW_TAG_imported_declaration" , natural_of_hex "0x08" ); ("DW_TAG_label" , natural_of_hex "0x0a" ); ("DW_TAG_lexical_block" , natural_of_hex "0x0b" ); ("DW_TAG_member" , natural_of_hex "0x0d" ); ("DW_TAG_pointer_type" , natural_of_hex "0x0f" ); ("DW_TAG_reference_type" , natural_of_hex "0x10" ); ("DW_TAG_compile_unit" , natural_of_hex "0x11" ); ("DW_TAG_string_type" , natural_of_hex "0x12" ); ("DW_TAG_structure_type" , natural_of_hex "0x13" ); ("DW_TAG_subroutine_type" , natural_of_hex "0x15" ); ("DW_TAG_typedef" , natural_of_hex "0x16" ); ("DW_TAG_union_type" , natural_of_hex "0x17" ); ("DW_TAG_unspecified_parameters" , natural_of_hex "0x18" ); ("DW_TAG_variant" , natural_of_hex "0x19" ); ("DW_TAG_common_block" , natural_of_hex "0x1a" ); ("DW_TAG_common_inclusion" , natural_of_hex "0x1b" ); ("DW_TAG_inheritance" , natural_of_hex "0x1c" ); ("DW_TAG_inlined_subroutine" , natural_of_hex "0x1d" ); ("DW_TAG_module" , natural_of_hex "0x1e" ); ("DW_TAG_ptr_to_member_type" , natural_of_hex "0x1f" ); ("DW_TAG_set_type" , natural_of_hex "0x20" ); ("DW_TAG_subrange_type" , natural_of_hex "0x21" ); ("DW_TAG_with_stmt" , natural_of_hex "0x22" ); ("DW_TAG_access_declaration" , natural_of_hex "0x23" ); ("DW_TAG_base_type" , natural_of_hex "0x24" ); ("DW_TAG_catch_block" , natural_of_hex "0x25" ); ("DW_TAG_const_type" , natural_of_hex "0x26" ); ("DW_TAG_constant" , natural_of_hex "0x27" ); ("DW_TAG_enumerator" , natural_of_hex "0x28" ); ("DW_TAG_file_type" , natural_of_hex "0x29" ); ("DW_TAG_friend" , natural_of_hex "0x2a" ); ("DW_TAG_namelist" , natural_of_hex "0x2b" ); ("DW_TAG_namelist_item" , natural_of_hex "0x2c" ); ("DW_TAG_packed_type" , natural_of_hex "0x2d" ); ("DW_TAG_subprogram" , natural_of_hex "0x2e" ); ("DW_TAG_template_type_parameter" , natural_of_hex "0x2f" ); ("DW_TAG_template_value_parameter" , natural_of_hex "0x30" ); ("DW_TAG_thrown_type" , natural_of_hex "0x31" ); ("DW_TAG_try_block" , natural_of_hex "0x32" ); ("DW_TAG_variant_part" , natural_of_hex "0x33" ); ("DW_TAG_variable" , natural_of_hex "0x34" ); ("DW_TAG_volatile_type" , natural_of_hex "0x35" ); ("DW_TAG_dwarf_procedure" , natural_of_hex "0x36" ); ("DW_TAG_restrict_type" , natural_of_hex "0x37" ); ("DW_TAG_interface_type" , natural_of_hex "0x38" ); ("DW_TAG_namespace" , natural_of_hex "0x39" ); ("DW_TAG_imported_module" , natural_of_hex "0x3a" ); ("DW_TAG_unspecified_type" , natural_of_hex "0x3b" ); ("DW_TAG_partial_unit" , natural_of_hex "0x3c" ); ("DW_TAG_imported_unit" , natural_of_hex "0x3d" ); ("DW_TAG_condition" , natural_of_hex "0x3f" ); ("DW_TAG_shared_type" , natural_of_hex "0x40" ); ("DW_TAG_type_unit" , natural_of_hex "0x41" ); ("DW_TAG_rvalue_reference_type" , natural_of_hex "0x42" ); ("DW_TAG_template_alias" , natural_of_hex "0x43" ); ("DW_TAG_lo_user" , natural_of_hex "0x4080"); ("DW_TAG_hi_user" , natural_of_hex "0xffff") ]) (* child determination encoding *) let vDW_CHILDREN_no:Nat_big_num.num= (natural_of_hex "0x00") let vDW_CHILDREN_yes:Nat_big_num.num= (natural_of_hex "0x01") (* attribute encoding *) let attribute_encodings:(string*Nat_big_num.num*(dwarf_attribute_classes)list)list= ([ ("DW_AT_sibling" , natural_of_hex "0x01", [DWA_reference]) ; ("DW_AT_location" , natural_of_hex "0x02", [DWA_exprloc; DWA_loclistptr]) ; ("DW_AT_name" , natural_of_hex "0x03", [DWA_string]) ; ("DW_AT_ordering" , natural_of_hex "0x09", [DWA_constant]) ; ("DW_AT_byte_size" , natural_of_hex "0x0b", [DWA_constant; DWA_exprloc; DWA_reference]) ; ("DW_AT_bit_offset" , natural_of_hex "0x0c", [DWA_constant; DWA_exprloc; DWA_reference]) ; ("DW_AT_bit_size" , natural_of_hex "0x0d", [DWA_constant; DWA_exprloc; DWA_reference]) ; ("DW_AT_stmt_list" , natural_of_hex "0x10", [DWA_lineptr]) ; ("DW_AT_low_pc" , natural_of_hex "0x11", [DWA_address]) ; ("DW_AT_high_pc" , natural_of_hex "0x12", [DWA_address; DWA_constant]) ; ("DW_AT_language" , natural_of_hex "0x13", [DWA_constant]) ; ("DW_AT_discr" , natural_of_hex "0x15", [DWA_reference]) ; ("DW_AT_discr_value" , natural_of_hex "0x16", [DWA_constant]) ; ("DW_AT_visibility" , natural_of_hex "0x17", [DWA_constant]) ; ("DW_AT_import" , natural_of_hex "0x18", [DWA_reference]) ; ("DW_AT_string_length" , natural_of_hex "0x19", [DWA_exprloc; DWA_loclistptr]) ; ("DW_AT_common_reference" , natural_of_hex "0x1a", [DWA_reference]) ; ("DW_AT_comp_dir" , natural_of_hex "0x1b", [DWA_string]) ; ("DW_AT_const_value" , natural_of_hex "0x1c", [DWA_block; DWA_constant; DWA_string]) ; ("DW_AT_containing_type" , natural_of_hex "0x1d", [DWA_reference]) ; ("DW_AT_default_value" , natural_of_hex "0x1e", [DWA_reference]) ; ("DW_AT_inline" , natural_of_hex "0x20", [DWA_constant]) ; ("DW_AT_is_optional" , natural_of_hex "0x21", [DWA_flag]) ; ("DW_AT_lower_bound" , natural_of_hex "0x22", [DWA_constant; DWA_exprloc; DWA_reference]) ; ("DW_AT_producer" , natural_of_hex "0x25", [DWA_string]) ; ("DW_AT_prototyped" , natural_of_hex "0x27", [DWA_flag]) ; ("DW_AT_return_addr" , natural_of_hex "0x2a", [DWA_exprloc; DWA_loclistptr]) ; ("DW_AT_start_scope" , natural_of_hex "0x2c", [DWA_constant; DWA_rangelistptr]) ; ("DW_AT_bit_stride" , natural_of_hex "0x2e", [DWA_constant; DWA_exprloc; DWA_reference]) ; ("DW_AT_upper_bound" , natural_of_hex "0x2f", [DWA_constant; DWA_exprloc; DWA_reference]) ; ("DW_AT_abstract_origin" , natural_of_hex "0x31", [DWA_reference]) ; ("DW_AT_accessibility" , natural_of_hex "0x32", [DWA_constant]) ; ("DW_AT_address_class" , natural_of_hex "0x33", [DWA_constant]) ; ("DW_AT_artificial" , natural_of_hex "0x34", [DWA_flag]) ; ("DW_AT_base_types" , natural_of_hex "0x35", [DWA_reference]) ; ("DW_AT_calling_convention" , natural_of_hex "0x36", [DWA_constant]) ; ("DW_AT_count" , natural_of_hex "0x37", [DWA_constant; DWA_exprloc; DWA_reference]) ; ("DW_AT_data_member_location" , natural_of_hex "0x38", [DWA_constant; DWA_exprloc; DWA_loclistptr]) ; ("DW_AT_decl_column" , natural_of_hex "0x39", [DWA_constant]) ; ("DW_AT_decl_file" , natural_of_hex "0x3a", [DWA_constant]) ; ("DW_AT_decl_line" , natural_of_hex "0x3b", [DWA_constant]) ; ("DW_AT_declaration" , natural_of_hex "0x3c", [DWA_flag]) ; ("DW_AT_discr_list" , natural_of_hex "0x3d", [DWA_block]) ; ("DW_AT_encoding" , natural_of_hex "0x3e", [DWA_constant]) ; ("DW_AT_external" , natural_of_hex "0x3f", [DWA_flag]) ; ("DW_AT_frame_base" , natural_of_hex "0x40", [DWA_exprloc; DWA_loclistptr]) ; ("DW_AT_friend" , natural_of_hex "0x41", [DWA_reference]) ; ("DW_AT_identifier_case" , natural_of_hex "0x42", [DWA_constant]) ; ("DW_AT_macro_info" , natural_of_hex "0x43", [DWA_macptr]) ; ("DW_AT_namelist_item" , natural_of_hex "0x44", [DWA_reference]) ; ("DW_AT_priority" , natural_of_hex "0x45", [DWA_reference]) ; ("DW_AT_segment" , natural_of_hex "0x46", [DWA_exprloc; DWA_loclistptr]) ; ("DW_AT_specification" , natural_of_hex "0x47", [DWA_reference]) ; ("DW_AT_static_link" , natural_of_hex "0x48", [DWA_exprloc; DWA_loclistptr]) ; ("DW_AT_type" , natural_of_hex "0x49", [DWA_reference]) ; ("DW_AT_use_location" , natural_of_hex "0x4a", [DWA_exprloc; DWA_loclistptr]) ; ("DW_AT_variable_parameter" , natural_of_hex "0x4b", [DWA_flag]) ; ("DW_AT_virtuality" , natural_of_hex "0x4c", [DWA_constant]) ; ("DW_AT_vtable_elem_location" , natural_of_hex "0x4d", [DWA_exprloc; DWA_loclistptr]) ; ("DW_AT_allocated" , natural_of_hex "0x4e", [DWA_constant; DWA_exprloc; DWA_reference]) ; ("DW_AT_associated" , natural_of_hex "0x4f", [DWA_constant; DWA_exprloc; DWA_reference]) ; ("DW_AT_data_location" , natural_of_hex "0x50", [DWA_exprloc]) ; ("DW_AT_byte_stride" , natural_of_hex "0x51", [DWA_constant; DWA_exprloc; DWA_reference]) ; ("DW_AT_entry_pc" , natural_of_hex "0x52", [DWA_address]) ; ("DW_AT_use_UTF8" , natural_of_hex "0x53", [DWA_flag]) ; ("DW_AT_extension" , natural_of_hex "0x54", [DWA_reference]) ; ("DW_AT_ranges" , natural_of_hex "0x55", [DWA_rangelistptr]) ; ("DW_AT_trampoline" , natural_of_hex "0x56", [DWA_address; DWA_flag; DWA_reference; DWA_string]); ("DW_AT_call_column" , natural_of_hex "0x57", [DWA_constant]) ; ("DW_AT_call_file" , natural_of_hex "0x58", [DWA_constant]) ; ("DW_AT_call_line" , natural_of_hex "0x59", [DWA_constant]) ; ("DW_AT_description" , natural_of_hex "0x5a", [DWA_string]) ; ("DW_AT_binary_scale" , natural_of_hex "0x5b", [DWA_constant]) ; ("DW_AT_decimal_scale" , natural_of_hex "0x5c", [DWA_constant]) ; ("DW_AT_small" , natural_of_hex "0x5d", [DWA_reference]) ; ("DW_AT_decimal_sign" , natural_of_hex "0x5e", [DWA_constant]) ; ("DW_AT_digit_count" , natural_of_hex "0x5f", [DWA_constant]) ; ("DW_AT_picture_string" , natural_of_hex "0x60", [DWA_string]) ; ("DW_AT_mutable" , natural_of_hex "0x61", [DWA_flag]) ; ("DW_AT_threads_scaled" , natural_of_hex "0x62", [DWA_flag]) ; ("DW_AT_explicit" , natural_of_hex "0x63", [DWA_flag]) ; ("DW_AT_object_pointer" , natural_of_hex "0x64", [DWA_reference]) ; ("DW_AT_endianity" , natural_of_hex "0x65", [DWA_constant]) ; ("DW_AT_elemental" , natural_of_hex "0x66", [DWA_flag]) ; ("DW_AT_pure" , natural_of_hex "0x67", [DWA_flag]) ; ("DW_AT_recursive" , natural_of_hex "0x68", [DWA_flag]) ; ("DW_AT_signature" , natural_of_hex "0x69", [DWA_reference]) ; ("DW_AT_main_subprogram" , natural_of_hex "0x6a", [DWA_flag]) ; ("DW_AT_data_bit_offset" , natural_of_hex "0x6b", [DWA_constant]) ; ("DW_AT_const_expr" , natural_of_hex "0x6c", [DWA_flag]) ; ("DW_AT_enum_class" , natural_of_hex "0x6d", [DWA_flag]) ; ("DW_AT_linkage_name" , natural_of_hex "0x6e", [DWA_string]) ; (* DW_AT_noreturn is a gcc extension to support the C11 _Noreturn keyword*) ("DW_AT_noreturn" , natural_of_hex "0x87", [DWA_flag]) ; ("DW_AT_alignment" , natural_of_hex "0x88", [DWA_constant]) ; ("DW_AT_lo_user" , natural_of_hex "0x2000", [DWA_dash]) ; ("DW_AT_hi_user" , natural_of_hex "0x3fff", [DWA_dash]) ]) (* attribute form encoding *) let attribute_form_encodings:(string*Nat_big_num.num*(dwarf_attribute_classes)list)list= ([ ("DW_FORM_addr" , natural_of_hex "0x01", [DWA_address]) ; ("DW_FORM_block2" , natural_of_hex "0x03", [DWA_block]) ; ("DW_FORM_block4" , natural_of_hex "0x04", [DWA_block]) ; ("DW_FORM_data2" , natural_of_hex "0x05", [DWA_constant]) ; ("DW_FORM_data4" , natural_of_hex "0x06", [DWA_constant]) ; ("DW_FORM_data8" , natural_of_hex "0x07", [DWA_constant]) ; ("DW_FORM_string" , natural_of_hex "0x08", [DWA_string]) ; ("DW_FORM_block" , natural_of_hex "0x09", [DWA_block]) ; ("DW_FORM_block1" , natural_of_hex "0x0a", [DWA_block]) ; ("DW_FORM_data1" , natural_of_hex "0x0b", [DWA_constant]) ; ("DW_FORM_flag" , natural_of_hex "0x0c", [DWA_flag]) ; ("DW_FORM_sdata" , natural_of_hex "0x0d", [DWA_constant]) ; ("DW_FORM_strp" , natural_of_hex "0x0e", [DWA_string]) ; ("DW_FORM_udata" , natural_of_hex "0x0f", [DWA_constant]) ; ("DW_FORM_ref_addr" , natural_of_hex "0x10", [DWA_reference]); ("DW_FORM_ref1" , natural_of_hex "0x11", [DWA_reference]); ("DW_FORM_ref2" , natural_of_hex "0x12", [DWA_reference]); ("DW_FORM_ref4" , natural_of_hex "0x13", [DWA_reference]); ("DW_FORM_ref8" , natural_of_hex "0x14", [DWA_reference]); ("DW_FORM_ref_udata" , natural_of_hex "0x15", [DWA_reference]); ("DW_FORM_indirect" , natural_of_hex "0x16", [DWA_7_5_3]) ; ("DW_FORM_sec_offset" , natural_of_hex "0x17", [DWA_lineptr; DWA_loclistptr; DWA_macptr; DWA_rangelistptr]) ; ("DW_FORM_exprloc" , natural_of_hex "0x18", [DWA_exprloc]) ; ("DW_FORM_flag_present", natural_of_hex "0x19", [DWA_flag]) ; ("DW_FORM_ref_sig8" , natural_of_hex "0x20", [DWA_reference]) ]) (* operation encoding *) let operation_encodings:(string*Nat_big_num.num*(operation_argument_type)list*operation_semantics)list= ([ ("DW_OP_addr", natural_of_hex "0x03", [OAT_addr] , OpSem_lit); (*1*) (*constant address (size target specific)*) ("DW_OP_deref", natural_of_hex "0x06", [] , OpSem_deref); (*0*) ("DW_OP_const1u", natural_of_hex "0x08", [OAT_uint8] , OpSem_lit); (*1*) (* 1-byte constant *) ("DW_OP_const1s", natural_of_hex "0x09", [OAT_sint8] , OpSem_lit); (*1*) (* 1-byte constant *) ("DW_OP_const2u", natural_of_hex "0x0a", [OAT_uint16] , OpSem_lit); (*1*) (* 2-byte constant *) ("DW_OP_const2s", natural_of_hex "0x0b", [OAT_sint16] , OpSem_lit); (*1*) (* 2-byte constant *) ("DW_OP_const4u", natural_of_hex "0x0c", [OAT_uint32] , OpSem_lit); (*1*) (* 4-byte constant *) ("DW_OP_const4s", natural_of_hex "0x0d", [OAT_sint32] , OpSem_lit); (*1*) (* 4-byte constant *) ("DW_OP_const8u", natural_of_hex "0x0e", [OAT_uint64] , OpSem_lit); (*1*) (* 8-byte constant *) ("DW_OP_const8s", natural_of_hex "0x0f", [OAT_sint64] , OpSem_lit); (*1*) (* 8-byte constant *) ("DW_OP_constu", natural_of_hex "0x10", [OAT_ULEB128] , OpSem_lit); (*1*) (* ULEB128 constant *) ("DW_OP_consts", natural_of_hex "0x11", [OAT_SLEB128] , OpSem_lit); (*1*) (* SLEB128 constant *) ("DW_OP_dup", natural_of_hex "0x12", [] , OpSem_stack (fun ac vs args -> (match vs with v::vs -> Some (v::(v::vs)) | _ -> None ))); (*0*) ("DW_OP_drop", natural_of_hex "0x13", [] , OpSem_stack (fun ac vs args -> (match vs with v::vs -> Some vs | _ -> None ))); (*0*) ("DW_OP_over", natural_of_hex "0x14", [] , OpSem_stack (fun ac vs args -> (match vs with v::v'::vs -> Some (v'::(v::(v'::vs))) | _ -> None ))); (*0*) ("DW_OP_pick", natural_of_hex "0x15", [OAT_uint8] , OpSem_stack (fun ac vs args -> (match args with [OAV_natural n] -> (match index_natural vs n with Some v -> Some (v::vs) | None -> None ) | _ -> None ))); (*1*) (* 1-byte stack index *) ("DW_OP_swap", natural_of_hex "0x16", [] , OpSem_stack (fun ac vs args -> (match vs with v::v'::vs -> Some (v'::(v::vs)) | _ -> None ))); (*0*) ("DW_OP_rot", natural_of_hex "0x17", [] , OpSem_stack (fun ac vs args -> (match vs with v::v'::v''::vs -> Some (v'::(v''::(v::vs))) | _ -> None ))); (*0*) ("DW_OP_xderef", natural_of_hex "0x18", [] , OpSem_not_supported); (*0*) ("DW_OP_abs", natural_of_hex "0x19", [] , OpSem_unary (fun ac v -> if Nat_big_num.less v ac.ac_half then Some v else if Nat_big_num.equal v ac.ac_max then None else Some (Nat_big_num.sub_nat ac.ac_all v))); (*0*) ("DW_OP_and", natural_of_hex "0x1a", [] , OpSem_binary (fun ac v1 v2 -> Some (Nat_big_num.bitwise_and v1 v2))); (*0*) ("DW_OP_div", natural_of_hex "0x1b", [] , OpSem_not_supported) (*TODO*); (*0*) ("DW_OP_minus", natural_of_hex "0x1c", [] , OpSem_binary (fun ac v1 v2 -> Some (partialNaturalFromInteger ( Nat_big_num.modulus( Nat_big_num.sub( v1) ( v2)) ( ac.ac_all))))); (*0*) ("DW_OP_mod", natural_of_hex "0x1d", [] , OpSem_binary (fun ac v1 v2 -> Some ( Nat_big_num.modulus v1 v2))); (*0*) ("DW_OP_mul", natural_of_hex "0x1e", [] , OpSem_binary (fun ac v1 v2 -> Some (partialNaturalFromInteger ( Nat_big_num.modulus( Nat_big_num.mul( v1) ( v2)) ( ac.ac_all))))); (*0*) ("DW_OP_neg", natural_of_hex "0x1f", [] , OpSem_unary (fun ac v -> if Nat_big_num.less v ac.ac_half then Some ( Nat_big_num.sub_nat ac.ac_max v) else if Nat_big_num.equal v ac.ac_half then None else Some ( Nat_big_num.sub_nat ac.ac_all v))); (*0*) ("DW_OP_not", natural_of_hex "0x20", [] , OpSem_unary (fun ac v -> Some (Nat_big_num.bitwise_xor v ac.ac_max))); (*0*) ("DW_OP_or", natural_of_hex "0x21", [] , OpSem_binary (fun ac v1 v2 -> Some (Nat_big_num.bitwise_or v1 v2))); (*0*) ("DW_OP_plus", natural_of_hex "0x22", [] , OpSem_binary (fun ac v1 v2 -> Some ( Nat_big_num.modulus( Nat_big_num.add v1 v2) ac.ac_all))); (*0*) ("DW_OP_plus_uconst", natural_of_hex "0x23", [OAT_ULEB128] , OpSem_stack (fun ac vs args -> (match args with [OAV_natural n] -> (match vs with v::vs' -> let v' = (Nat_big_num.modulus (Nat_big_num.add v n) ac.ac_all) in Some (v'::vs) | [] -> None ) | _ -> None ))); (*1*) (* ULEB128 addend *) ("DW_OP_shl", natural_of_hex "0x24", [] , OpSem_binary (fun ac v1 v2 -> if Nat_big_num.greater_equal v2 ac.ac_bitwidth then Some( (Nat_big_num.of_int 0)) else Some (Nat_big_num.shift_left v1 (Nat_big_num.to_int v2)))); (*0*) ("DW_OP_shr", natural_of_hex "0x25", [] , OpSem_binary (fun ac v1 v2 -> if Nat_big_num.greater_equal v2 ac.ac_bitwidth then Some( (Nat_big_num.of_int 0)) else Some (Nat_big_num.shift_right v1 (Nat_big_num.to_int v2)))); (*0*) ("DW_OP_shra", natural_of_hex "0x26", [] , OpSem_binary (fun ac v1 v2 -> if Nat_big_num.less v1 ac.ac_half then (if Nat_big_num.greater_equal v2 ac.ac_bitwidth then Some( (Nat_big_num.of_int 0)) else Some (Nat_big_num.shift_right v1 (Nat_big_num.to_int v2))) else (if Nat_big_num.greater_equal v2 ac.ac_bitwidth then Some ac.ac_max else Some ( Nat_big_num.sub_nat ac.ac_max (Nat_big_num.shift_right ( Nat_big_num.sub_nat ac.ac_max v1) (Nat_big_num.to_int v2)))))); (*0*) ("DW_OP_xor", natural_of_hex "0x27", [] , OpSem_binary (fun ac v1 v2 -> Some (Nat_big_num.bitwise_xor v1 v2))); (*0*) ("DW_OP_skip", natural_of_hex "0x2f", [OAT_sint16] , OpSem_not_supported); (*1*) (* signed 2-byte constant *) ("DW_OP_bra", natural_of_hex "0x28", [OAT_sint16] , OpSem_not_supported); (*1*) (* signed 2-byte constant *) ("DW_OP_eq", natural_of_hex "0x29", [] , OpSem_not_supported); (*0*) ("DW_OP_ge", natural_of_hex "0x2a", [] , OpSem_not_supported); (*0*) ("DW_OP_gt", natural_of_hex "0x2b", [] , OpSem_not_supported); (*0*) ("DW_OP_le", natural_of_hex "0x2c", [] , OpSem_not_supported); (*0*) ("DW_OP_lt", natural_of_hex "0x2d", [] , OpSem_not_supported); (*0*) ("DW_OP_ne", natural_of_hex "0x2e", [] , OpSem_not_supported); (*0*) ("DW_OP_lit0", natural_of_hex "0x30", [] , OpSem_opcode_lit (natural_of_hex "0x30")); (*0*) (* literals 0..31 =(DW_OP_lit0 + literal) *) ("DW_OP_lit1", natural_of_hex "0x31", [] , OpSem_opcode_lit (natural_of_hex "0x30")); (*0*) ("DW_OP_lit2", natural_of_hex "0x32", [] , OpSem_opcode_lit (natural_of_hex "0x30")); (*0*) ("DW_OP_lit3", natural_of_hex "0x33", [] , OpSem_opcode_lit (natural_of_hex "0x30")); (*0*) ("DW_OP_lit4", natural_of_hex "0x34", [] , OpSem_opcode_lit (natural_of_hex "0x30")); (*0*) ("DW_OP_lit5", natural_of_hex "0x35", [] , OpSem_opcode_lit (natural_of_hex "0x30")); (*0*) ("DW_OP_lit6", natural_of_hex "0x36", [] , OpSem_opcode_lit (natural_of_hex "0x30")); (*0*) ("DW_OP_lit7", natural_of_hex "0x37", [] , OpSem_opcode_lit (natural_of_hex "0x30")); (*0*) ("DW_OP_lit8", natural_of_hex "0x38", [] , OpSem_opcode_lit (natural_of_hex "0x30")); (*0*) ("DW_OP_lit9", natural_of_hex "0x39", [] , OpSem_opcode_lit (natural_of_hex "0x30")); (*0*) ("DW_OP_lit10", natural_of_hex "0x3a", [] , OpSem_opcode_lit (natural_of_hex "0x30")); (*0*) ("DW_OP_lit11", natural_of_hex "0x3b", [] , OpSem_opcode_lit (natural_of_hex "0x30")); (*0*) ("DW_OP_lit12", natural_of_hex "0x3c", [] , OpSem_opcode_lit (natural_of_hex "0x30")); (*0*) ("DW_OP_lit13", natural_of_hex "0x3d", [] , OpSem_opcode_lit (natural_of_hex "0x30")); (*0*) ("DW_OP_lit14", natural_of_hex "0x3e", [] , OpSem_opcode_lit (natural_of_hex "0x30")); (*0*) ("DW_OP_lit15", natural_of_hex "0x3f", [] , OpSem_opcode_lit (natural_of_hex "0x30")); (*0*) ("DW_OP_lit16", natural_of_hex "0x40", [] , OpSem_opcode_lit (natural_of_hex "0x30")); (*0*) ("DW_OP_lit17", natural_of_hex "0x41", [] , OpSem_opcode_lit (natural_of_hex "0x30")); (*0*) ("DW_OP_lit18", natural_of_hex "0x42", [] , OpSem_opcode_lit (natural_of_hex "0x30")); (*0*) ("DW_OP_lit19", natural_of_hex "0x43", [] , OpSem_opcode_lit (natural_of_hex "0x30")); (*0*) ("DW_OP_lit20", natural_of_hex "0x44", [] , OpSem_opcode_lit (natural_of_hex "0x30")); (*0*) ("DW_OP_lit21", natural_of_hex "0x45", [] , OpSem_opcode_lit (natural_of_hex "0x30")); (*0*) ("DW_OP_lit22", natural_of_hex "0x46", [] , OpSem_opcode_lit (natural_of_hex "0x30")); (*0*) ("DW_OP_lit23", natural_of_hex "0x47", [] , OpSem_opcode_lit (natural_of_hex "0x30")); (*0*) ("DW_OP_lit24", natural_of_hex "0x48", [] , OpSem_opcode_lit (natural_of_hex "0x30")); (*0*) ("DW_OP_lit25", natural_of_hex "0x49", [] , OpSem_opcode_lit (natural_of_hex "0x30")); (*0*) ("DW_OP_lit26", natural_of_hex "0x4a", [] , OpSem_opcode_lit (natural_of_hex "0x30")); (*0*) ("DW_OP_lit27", natural_of_hex "0x4b", [] , OpSem_opcode_lit (natural_of_hex "0x30")); (*0*) ("DW_OP_lit28", natural_of_hex "0x4c", [] , OpSem_opcode_lit (natural_of_hex "0x30")); (*0*) ("DW_OP_lit29", natural_of_hex "0x4d", [] , OpSem_opcode_lit (natural_of_hex "0x30")); (*0*) ("DW_OP_lit30", natural_of_hex "0x4e", [] , OpSem_opcode_lit (natural_of_hex "0x30")); (*0*) ("DW_OP_lit31", natural_of_hex "0x4f", [] , OpSem_opcode_lit (natural_of_hex "0x30")); (*0*) ("DW_OP_reg0", natural_of_hex "0x50", [] , OpSem_reg); (*1*) (* reg 0..31 = (DW_OP_reg0 + regnum) *) ("DW_OP_reg1", natural_of_hex "0x51", [] , OpSem_reg); (*1*) ("DW_OP_reg2", natural_of_hex "0x52", [] , OpSem_reg); (*1*) ("DW_OP_reg3", natural_of_hex "0x53", [] , OpSem_reg); (*1*) ("DW_OP_reg4", natural_of_hex "0x54", [] , OpSem_reg); (*1*) ("DW_OP_reg5", natural_of_hex "0x55", [] , OpSem_reg); (*1*) ("DW_OP_reg6", natural_of_hex "0x56", [] , OpSem_reg); (*1*) ("DW_OP_reg7", natural_of_hex "0x57", [] , OpSem_reg); (*1*) ("DW_OP_reg8", natural_of_hex "0x58", [] , OpSem_reg); (*1*) ("DW_OP_reg9", natural_of_hex "0x59", [] , OpSem_reg); (*1*) ("DW_OP_reg10", natural_of_hex "0x5a", [] , OpSem_reg); (*1*) ("DW_OP_reg11", natural_of_hex "0x5b", [] , OpSem_reg); (*1*) ("DW_OP_reg12", natural_of_hex "0x5c", [] , OpSem_reg); (*1*) ("DW_OP_reg13", natural_of_hex "0x5d", [] , OpSem_reg); (*1*) ("DW_OP_reg14", natural_of_hex "0x5e", [] , OpSem_reg); (*1*) ("DW_OP_reg15", natural_of_hex "0x5f", [] , OpSem_reg); (*1*) ("DW_OP_reg16", natural_of_hex "0x60", [] , OpSem_reg); (*1*) ("DW_OP_reg17", natural_of_hex "0x61", [] , OpSem_reg); (*1*) ("DW_OP_reg18", natural_of_hex "0x62", [] , OpSem_reg); (*1*) ("DW_OP_reg19", natural_of_hex "0x63", [] , OpSem_reg); (*1*) ("DW_OP_reg20", natural_of_hex "0x64", [] , OpSem_reg); (*1*) ("DW_OP_reg21", natural_of_hex "0x65", [] , OpSem_reg); (*1*) ("DW_OP_reg22", natural_of_hex "0x66", [] , OpSem_reg); (*1*) ("DW_OP_reg23", natural_of_hex "0x67", [] , OpSem_reg); (*1*) ("DW_OP_reg24", natural_of_hex "0x68", [] , OpSem_reg); (*1*) ("DW_OP_reg25", natural_of_hex "0x69", [] , OpSem_reg); (*1*) ("DW_OP_reg26", natural_of_hex "0x6a", [] , OpSem_reg); (*1*) ("DW_OP_reg27", natural_of_hex "0x6b", [] , OpSem_reg); (*1*) ("DW_OP_reg28", natural_of_hex "0x6c", [] , OpSem_reg); (*1*) ("DW_OP_reg29", natural_of_hex "0x6d", [] , OpSem_reg); (*1*) ("DW_OP_reg30", natural_of_hex "0x6e", [] , OpSem_reg); (*1*) ("DW_OP_reg31", natural_of_hex "0x6f", [] , OpSem_reg); (*1*) ("DW_OP_breg0", natural_of_hex "0x70", [OAT_SLEB128] , OpSem_breg); (*1*) (* base register 0..31 = (DW_OP_breg0 + regnum) *) ("DW_OP_breg1", natural_of_hex "0x71", [OAT_SLEB128] , OpSem_breg); (*1*) ("DW_OP_breg2", natural_of_hex "0x72", [OAT_SLEB128] , OpSem_breg); (*1*) ("DW_OP_breg3", natural_of_hex "0x73", [OAT_SLEB128] , OpSem_breg); (*1*) ("DW_OP_breg4", natural_of_hex "0x74", [OAT_SLEB128] , OpSem_breg); (*1*) ("DW_OP_breg5", natural_of_hex "0x75", [OAT_SLEB128] , OpSem_breg); (*1*) ("DW_OP_breg6", natural_of_hex "0x76", [OAT_SLEB128] , OpSem_breg); (*1*) ("DW_OP_breg7", natural_of_hex "0x77", [OAT_SLEB128] , OpSem_breg); (*1*) ("DW_OP_breg8", natural_of_hex "0x78", [OAT_SLEB128] , OpSem_breg); (*1*) ("DW_OP_breg9", natural_of_hex "0x79", [OAT_SLEB128] , OpSem_breg); (*1*) ("DW_OP_breg10", natural_of_hex "0x7a", [OAT_SLEB128] , OpSem_breg); (*1*) ("DW_OP_breg11", natural_of_hex "0x7b", [OAT_SLEB128] , OpSem_breg); (*1*) ("DW_OP_breg12", natural_of_hex "0x7c", [OAT_SLEB128] , OpSem_breg); (*1*) ("DW_OP_breg13", natural_of_hex "0x7d", [OAT_SLEB128] , OpSem_breg); (*1*) ("DW_OP_breg14", natural_of_hex "0x7e", [OAT_SLEB128] , OpSem_breg); (*1*) ("DW_OP_breg15", natural_of_hex "0x7f", [OAT_SLEB128] , OpSem_breg); (*1*) ("DW_OP_breg16", natural_of_hex "0x80", [OAT_SLEB128] , OpSem_breg); (*1*) ("DW_OP_breg17", natural_of_hex "0x81", [OAT_SLEB128] , OpSem_breg); (*1*) ("DW_OP_breg18", natural_of_hex "0x82", [OAT_SLEB128] , OpSem_breg); (*1*) ("DW_OP_breg19", natural_of_hex "0x83", [OAT_SLEB128] , OpSem_breg); (*1*) ("DW_OP_breg20", natural_of_hex "0x84", [OAT_SLEB128] , OpSem_breg); (*1*) ("DW_OP_breg21", natural_of_hex "0x85", [OAT_SLEB128] , OpSem_breg); (*1*) ("DW_OP_breg22", natural_of_hex "0x86", [OAT_SLEB128] , OpSem_breg); (*1*) ("DW_OP_breg23", natural_of_hex "0x87", [OAT_SLEB128] , OpSem_breg); (*1*) ("DW_OP_breg24", natural_of_hex "0x88", [OAT_SLEB128] , OpSem_breg); (*1*) ("DW_OP_breg25", natural_of_hex "0x89", [OAT_SLEB128] , OpSem_breg); (*1*) ("DW_OP_breg26", natural_of_hex "0x8a", [OAT_SLEB128] , OpSem_breg); (*1*) ("DW_OP_breg27", natural_of_hex "0x8b", [OAT_SLEB128] , OpSem_breg); (*1*) ("DW_OP_breg28", natural_of_hex "0x8c", [OAT_SLEB128] , OpSem_breg); (*1*) ("DW_OP_breg29", natural_of_hex "0x8d", [OAT_SLEB128] , OpSem_breg); (*1*) ("DW_OP_breg30", natural_of_hex "0x8e", [OAT_SLEB128] , OpSem_breg); (*1*) ("DW_OP_breg31", natural_of_hex "0x8f", [OAT_SLEB128] , OpSem_breg); (*1*) ("DW_OP_regx", natural_of_hex "0x90", [OAT_ULEB128] , OpSem_lit); (*1*) (* ULEB128 register *) ("DW_OP_fbreg", natural_of_hex "0x91", [OAT_SLEB128] , OpSem_fbreg); (*1*) (* SLEB128 offset *) ("DW_OP_bregx", natural_of_hex "0x92", [OAT_ULEB128; OAT_SLEB128] , OpSem_bregx); (*2*) (* ULEB128 register followed by SLEB128 offset *) ("DW_OP_piece", natural_of_hex "0x93", [OAT_ULEB128] , OpSem_piece); (*1*) (* ULEB128 size of piece addressed *) ("DW_OP_deref_size", natural_of_hex "0x94", [OAT_uint8] , OpSem_deref_size); (*1*) (* 1-byte size of data retrieved *) ("DW_OP_xderef_size", natural_of_hex "0x95", [OAT_uint8] , OpSem_not_supported); (*1*) (* 1-byte size of data retrieved *) ("DW_OP_nop", natural_of_hex "0x96", [] , OpSem_nop); (*0*) ("DW_OP_push_object_address", natural_of_hex "0x97", [] , OpSem_not_supported); (*0*) ("DW_OP_call2", natural_of_hex "0x98", [OAT_uint16] , OpSem_not_supported); (*1*) (* 2-byte offset of DIE *) ("DW_OP_call4", natural_of_hex "0x99", [OAT_uint32] , OpSem_not_supported); (*1*) (* 4-byte offset of DIE *) ("DW_OP_call_ref", natural_of_hex "0x9a", [OAT_dwarf_format_t] , OpSem_not_supported); (*1*) (* 4- or 8-byte offset of DIE *) ("DW_OP_form_tls_address", natural_of_hex "0x9b", [] , OpSem_not_supported); (*0*) ("DW_OP_call_frame_cfa", natural_of_hex "0x9c", [] , OpSem_call_frame_cfa); (*0*) ("DW_OP_bit_piece", natural_of_hex "0x9d", [OAT_ULEB128; OAT_ULEB128] , OpSem_bit_piece); (*2*) (* ULEB128 size followed by ULEB128 offset *) ("DW_OP_implicit_value", natural_of_hex "0x9e", [OAT_block] , OpSem_implicit_value); (*2*) (* ULEB128 size followed by block of that size *) ("DW_OP_stack_value", natural_of_hex "0x9f", [] , OpSem_stack_value); (*0*) (* these aren't real operations ("DW_OP_lo_user", natural_of_hex "0xe0", [] , ); ("DW_OP_hi_user", natural_of_hex "0xff", [] , ); *) (* GCC also produces these for our example: https://fedorahosted.org/elfutils/wiki/DwarfExtensions http://dwarfstd.org/ShowIssue.php?issue=100909.1 *) ("DW_GNU_OP_entry_value", natural_of_hex "0xf3", [OAT_block], OpSem_not_supported); (*2*) (* ULEB128 size followed by DWARF expression block of that size*) ("DW_OP_GNU_implicit_pointer", natural_of_hex "0xf2", [OAT_dwarf_format_t;OAT_SLEB128], OpSem_not_supported) ]) let vDW_OP_reg0:Nat_big_num.num= (natural_of_hex "0x50") let vDW_OP_breg0:Nat_big_num.num= (natural_of_hex "0x70") (* call frame instruction encoding *) let call_frame_instruction_encoding : (string * Nat_big_num.num * Nat_big_num.num * call_frame_argument_type list * (( call_frame_argument_value list) -> call_frame_instruction option)) list= ([ (* high-order 2 bits low-order 6 bits uniformly parsed arguments *) (* instructions using low-order 6 bits for first argument *) (* ("DW_CFA_advance_loc", 1, 0,(*delta *) []); ("DW_CFA_offset", 2, 0,(*register*) [CFAT_offset]); ("DW_CFA_restore", 3, 0,(*register*) []); *) (* instructions using low-order 6 bits as part of opcode *) ("DW_CFA_nop", (Nat_big_num.of_int 0), natural_of_hex "0x00", [], ( (* *)fun avs -> (match avs with [] -> Some (DW_CFA_nop) | _ -> None ))); ("DW_CFA_set_loc", (Nat_big_num.of_int 0), natural_of_hex "0x01", [CFAT_address], ( (* address *)fun avs -> (match avs with [CFAV_address a] -> Some (DW_CFA_set_loc a) | _ -> None ))); ("DW_CFA_advance_loc1", (Nat_big_num.of_int 0), natural_of_hex "0x02", [CFAT_delta1], ( (* 1-byte delta *)fun avs -> (match avs with [CFAV_delta d] -> Some (DW_CFA_advance_loc1 d) | _ -> None ))); ("DW_CFA_advance_loc2", (Nat_big_num.of_int 0), natural_of_hex "0x03", [CFAT_delta2], ( (* 2-byte delta *)fun avs -> (match avs with [CFAV_delta d] -> Some (DW_CFA_advance_loc2 d) | _ -> None ))); ("DW_CFA_advance_loc4", (Nat_big_num.of_int 0), natural_of_hex "0x04", [CFAT_delta4], ( (* 4-byte delta *)fun avs -> (match avs with [CFAV_delta d] -> Some (DW_CFA_advance_loc4 d) | _ -> None ))); ("DW_CFA_offset_extended", (Nat_big_num.of_int 0), natural_of_hex "0x05", [CFAT_register; CFAT_offset], ( (* ULEB128 register ULEB128 offset *)fun avs -> (match avs with [CFAV_register r; CFAV_offset n] -> Some (DW_CFA_offset_extended( r, n)) | _ -> None ))); ("DW_CFA_restore_extended", (Nat_big_num.of_int 0), natural_of_hex "0x06", [CFAT_register], ( (* ULEB128 register *)fun avs -> (match avs with [CFAV_register r] -> Some (DW_CFA_restore_extended r) | _ -> None ))); ("DW_CFA_undefined", (Nat_big_num.of_int 0), natural_of_hex "0x07", [CFAT_register], ( (* ULEB128 register *)fun avs -> (match avs with [CFAV_register r] -> Some (DW_CFA_undefined r) | _ -> None ))); ("DW_CFA_same_value", (Nat_big_num.of_int 0), natural_of_hex "0x08", [CFAT_register], ( (* ULEB128 register *)fun avs -> (match avs with [CFAV_register r] -> Some (DW_CFA_same_value r) | _ -> None ))); ("DW_CFA_register", (Nat_big_num.of_int 0), natural_of_hex "0x09", [CFAT_register; CFAT_register], ( (* ULEB128 register ULEB128 register *)fun avs -> (match avs with [CFAV_register r1; CFAV_register r2] -> Some (DW_CFA_register( r1, r2)) | _ -> None ))); ("DW_CFA_remember_state", (Nat_big_num.of_int 0), natural_of_hex "0x0a", [], ( (* *)fun avs -> (match avs with [] -> Some (DW_CFA_remember_state) | _ -> None ))); ("DW_CFA_restore_state", (Nat_big_num.of_int 0), natural_of_hex "0x0b", [], ( (* *)fun avs -> (match avs with [] -> Some (DW_CFA_restore_state) | _ -> None ))); ("DW_CFA_def_cfa", (Nat_big_num.of_int 0), natural_of_hex "0x0c", [CFAT_register; CFAT_offset], ( (* ULEB128 register ULEB128 offset *)fun avs -> (match avs with [CFAV_register r; CFAV_offset n] -> Some (DW_CFA_def_cfa( r, n)) | _ -> None ))); ("DW_CFA_def_cfa_register", (Nat_big_num.of_int 0), natural_of_hex "0x0d", [CFAT_register], ( (* ULEB128 register *)fun avs -> (match avs with [CFAV_register r] -> Some (DW_CFA_def_cfa_register r) | _ -> None ))); ("DW_CFA_def_cfa_offset", (Nat_big_num.of_int 0), natural_of_hex "0x0e", [CFAT_offset], ( (* ULEB128 offset *)fun avs -> (match avs with [CFAV_offset n] -> Some (DW_CFA_def_cfa_offset n) | _ -> None ))); ("DW_CFA_def_cfa_expression", (Nat_big_num.of_int 0), natural_of_hex "0x0f", [CFAT_block], ( (* BLOCK *)fun avs -> (match avs with [CFAV_block b] -> Some (DW_CFA_def_cfa_expression b) | _ -> None ))); ("DW_CFA_expression", (Nat_big_num.of_int 0), natural_of_hex "0x10", [CFAT_register; CFAT_block], ( (* ULEB128 register BLOCK *)fun avs -> (match avs with [CFAV_register r; CFAV_block b] -> Some (DW_CFA_expression( r, b)) | _ -> None ))); ("DW_CFA_offset_extended_sf", (Nat_big_num.of_int 0), natural_of_hex "0x11", [CFAT_register; CFAT_sfoffset], ( (* ULEB128 register SLEB128 offset *)fun avs -> (match avs with [CFAV_register r; CFAV_sfoffset i] -> Some (DW_CFA_offset_extended_sf( r, i)) | _ -> None ))); ("DW_CFA_def_cfa_sf", (Nat_big_num.of_int 0), natural_of_hex "0x12", [CFAT_register; CFAT_sfoffset], ( (* ULEB128 register SLEB128 offset *)fun avs -> (match avs with [CFAV_register r; CFAV_sfoffset i] -> Some (DW_CFA_def_cfa_sf( r, i)) | _ -> None ))); ("DW_CFA_def_cfa_offset_sf", (Nat_big_num.of_int 0), natural_of_hex "0x13", [CFAT_sfoffset], ( (* SLEB128 offset *)fun avs -> (match avs with [CFAV_sfoffset i] -> Some (DW_CFA_def_cfa_offset_sf i) | _ -> None ))); ("DW_CFA_val_offset", (Nat_big_num.of_int 0), natural_of_hex "0x14", [CFAT_register; CFAT_offset], ( (* ULEB128 ULEB128 *)fun avs -> (match avs with [CFAV_register r; CFAV_offset n] -> Some (DW_CFA_val_offset( r, n)) | _ -> None ))); ("DW_CFA_val_offset_sf", (Nat_big_num.of_int 0), natural_of_hex "0x15", [CFAT_register; CFAT_sfoffset], ( (* ULEB128 SLEB128 *)fun avs -> (match avs with [CFAV_register r; CFAV_sfoffset i] -> Some (DW_CFA_val_offset_sf( r, i)) | _ -> None ))); ("DW_CFA_val_expression", (Nat_big_num.of_int 0), natural_of_hex "0x16", [CFAT_register; CFAT_block], ( (* ULEB128 BLOCK *)fun avs -> (match avs with [CFAV_register r; CFAV_block b] -> Some (DW_CFA_val_expression( r, b)) | _ -> None ))); ("DW_CFA_AARCH64_negate_ra_state", (Nat_big_num.of_int 0), natural_of_hex "0x2d", [], ( (* *)fun avs -> (match avs with [] -> Some (DW_CFA_AARCH64_negate_ra_state) | _ -> None ))); ]) (* 0x2d DW_CFA_GNU_window_save is listed in https://sourceware.org/elfutils/DwarfExtensions as "magic shorthand used only by SPARC" https://elixir.bootlin.com/linux/v4.0/source/arch/arc/kernel/unwind.c#L842 no-ops it https://refspecs.linuxbase.org/LSB_3.0.0/LSB-PDA/LSB-PDA/dwarfext.html doesn't mention it https://github.com/gcc-mirror/gcc/blob/master/libgcc/unwind-dw2.c#L1189 says "This CFA is multiplexed with Sparc. On AArch64 it's used to toggle return address signing status." fs->regs.reg[DWARF_REGNUM_AARCH64_RA_STATE].loc.offset ^= 1; https://developer.arm.com/docs/ihi0057/c/dwarf-for-the-arm-64-bit-architecture-aarch64-abi-2018q4 "DWARF for the ArmÂ® 64-bit Architecture (AArch64) - ABI 2018Q4" calls this "DW_CFA_AARCH64_negate_ra_state" "The DW_CFA_AARCH64_negate_ra_state operation negates bit[0] of the RA_SIGN_STATE pseudo-register. It does not take any operands." p10 says "The RA_SIGN_STATE pseudo-register records whether the return address has been signed with aPAC. This information can be used when unwinding. It is an unsigned integer with the same sizeas a general register. Only bit[0] is meaningful and is initialized to zero. A value of 0 indicates the return address has not been signed. A value of 1 indicates the return address has been signed" For our purposes it seems fine to nop-this. *) (* ("DW_CFA_lo_user", 0, natural_of_hex "0x1c", []); (* *) ("DW_CFA_hi_user", 0, natural_of_hex "0x3f", []); (* *) *) (* line number encodings *) let line_number_standard_encodings:(string*Nat_big_num.num*(line_number_argument_type)list*((line_number_argument_value)list ->(line_number_operation)option))list= ([ ("DW_LNS_copy" , natural_of_hex "0x01", [ ], (fun lnvs -> (match lnvs with [] -> Some DW_LNS_copy | _ -> None ))); ("DW_LNS_advance_pc" , natural_of_hex "0x02", [LNAT_ULEB128 ], (fun lnvs -> (match lnvs with [LNAV_ULEB128 n] -> Some (DW_LNS_advance_pc n) | _ -> None ))); ("DW_LNS_advance_line" , natural_of_hex "0x03", [LNAT_SLEB128 ], (fun lnvs -> (match lnvs with [LNAV_SLEB128 i] -> Some (DW_LNS_advance_line i) | _ -> None ))); ("DW_LNS_set_file" , natural_of_hex "0x04", [LNAT_ULEB128 ], (fun lnvs -> (match lnvs with [LNAV_ULEB128 n] -> Some (DW_LNS_set_file n) | _ -> None ))); ("DW_LNS_set_column" , natural_of_hex "0x05", [LNAT_ULEB128 ], (fun lnvs -> (match lnvs with [LNAV_ULEB128 n] -> Some (DW_LNS_set_column n) | _ -> None ))); ("DW_LNS_negate_stmt" , natural_of_hex "0x06", [ ], (fun lnvs -> (match lnvs with [] -> Some (DW_LNS_negate_stmt) | _ -> None ))); ("DW_LNS_set_basic_block" , natural_of_hex "0x07", [ ], (fun lnvs -> (match lnvs with [] -> Some (DW_LNS_set_basic_block) | _ -> None ))); ("DW_LNS_const_add_pc" , natural_of_hex "0x08", [ ], (fun lnvs -> (match lnvs with [] -> Some (DW_LNS_const_add_pc) | _ -> None ))); ("DW_LNS_fixed_advance_pc" , natural_of_hex "0x09", [LNAT_uint16 ], (fun lnvs -> (match lnvs with [LNAV_uint16 n] -> Some (DW_LNS_fixed_advance_pc n) | _ -> None ))); ("DW_LNS_set_prologue_end" , natural_of_hex "0x0a", [ ], (fun lnvs -> (match lnvs with [] -> Some (DW_LNS_set_prologue_end) | _ -> None ))); ("DW_LNS_set_epilogue_begin" , natural_of_hex "0x0b", [ ], (fun lnvs -> (match lnvs with [] -> Some (DW_LNS_set_epilogue_begin) | _ -> None ))); ("DW_LNS_set_isa" , natural_of_hex "0x0c", [LNAT_ULEB128 ], (fun lnvs -> (match lnvs with [LNAV_ULEB128 n] -> Some (DW_LNS_set_isa n) | _ -> None ))) ]) let line_number_extended_encodings:(string*Nat_big_num.num*(line_number_argument_type)list*((line_number_argument_value)list ->(line_number_operation)option))list= ([ ("DW_LNE_end_sequence" , natural_of_hex "0x01", [], (fun lnvs -> (match lnvs with [] -> Some (DW_LNE_end_sequence) | _ -> None ))); ("DW_LNE_set_address" , natural_of_hex "0x02", [LNAT_address], (fun lnvs -> (match lnvs with [LNAV_address n] -> Some (DW_LNE_set_address n) | _ -> None ))); ("DW_LNE_define_file" , natural_of_hex "0x03", [LNAT_string; LNAT_ULEB128; LNAT_ULEB128; LNAT_ULEB128], (fun lnvs -> (match lnvs with [LNAV_string s; LNAV_ULEB128 n1; LNAV_ULEB128 n2; LNAV_ULEB128 n3] -> Some (DW_LNE_define_file( s, n1, n2, n3)) | _ -> None ))); ("DW_LNE_set_discriminator" , natural_of_hex "0x04", [LNAT_ULEB128], (fun lnvs -> (match lnvs with [LNAV_ULEB128 n] -> Some (DW_LNE_set_discriminator n) | _ -> None ))) (* new in Dwarf 4*) ]) (* (DW_LNE_lo_user , natural_of_hex "0x80", "DW_LNE_lo_user"); (DW_LNE_hi_user , natural_of_hex "0xff", "DW_LNE_hi_user"); *) (* booleans encoded as a single byte containing the value 0 for âfalse,â and a non-zero value for âtrue.â *) (* base type attribute encoding *) let base_type_attribute_encodings:(string*Nat_big_num.num)list= ([ ("DW_ATE_address" , natural_of_hex "0x01"); ("DW_ATE_boolean" , natural_of_hex "0x02"); ("DW_ATE_complex_float" , natural_of_hex "0x03"); ("DW_ATE_float" , natural_of_hex "0x04"); ("DW_ATE_signed" , natural_of_hex "0x05"); ("DW_ATE_signed_char" , natural_of_hex "0x06"); ("DW_ATE_unsigned" , natural_of_hex "0x07"); ("DW_ATE_unsigned_char" , natural_of_hex "0x08"); ("DW_ATE_imaginary_float" , natural_of_hex "0x09"); ("DW_ATE_packed_decimal" , natural_of_hex "0x0a"); ("DW_ATE_numeric_string" , natural_of_hex "0x0b"); ("DW_ATE_edited" , natural_of_hex "0x0c"); ("DW_ATE_signed_fixed" , natural_of_hex "0x0d"); ("DW_ATE_unsigned_fixed" , natural_of_hex "0x0e"); ("DW_ATE_decimal_float" , natural_of_hex "0x0f"); ("DW_ATE_UTF" , natural_of_hex "0x10"); ("DW_ATE_lo_user" , natural_of_hex "0x80"); ("DW_ATE_signed_capability_hack_a0" , natural_of_hex "0xa0"); ("DW_ATE_unsigned_capability_hack_a1" , natural_of_hex "0xa1"); ("DW_ATE_hi_user" , natural_of_hex "0xff") ]) (** ************************************************************ *) (** ** more missing pervasives and bits *********************** *) (** ************************************************************ *) (* quick hacky workaround: this is in String.lem, in src_lem_library, but the linker doesn't find it *) (*val myconcat : string -> list string -> string*) let rec myconcat sep ss:string= ((match ss with | [] -> "" | s :: ss' -> (match ss' with | [] -> s | _ -> s ^ (sep ^ myconcat sep ss') ) )) (*val myhead : forall 'a. list 'a -> 'a*) let myhead l:'a= ((match l with | x::xs -> x | [] -> failwith "myhead of empty list" )) (*val myfindNonPure : forall 'a. ('a -> bool) -> list 'a -> 'a*) let myfindNonPure p0 l:'a= ((match (Lem_list.list_find_opt p0 l) with | Some e -> e | None -> failwith "myfindNonPure" )) (*val myfindmaybe : forall 'a 'b. ('a -> maybe 'b) -> list 'a -> maybe 'b*) let rec myfindmaybe f xs:'b option= ((match xs with | [] -> None | x::xs' -> (match f x with Some y -> Some y | None -> myfindmaybe f xs' ) )) (*val myfind : forall 'a. ('a -> bool) -> list 'a -> maybe 'a*) let rec myfind f xs:'a option= ((match xs with | [] -> None | x::xs' -> (match f x with true -> Some x | false -> myfind f xs' ) )) (*val myfiltermaybe : forall 'a 'b. ('a -> maybe 'b) -> list 'a -> list 'b*) let rec myfiltermaybe f xs:'b list= ((match xs with | [] -> [] | x::xs' -> (match f x with Some y -> y::myfiltermaybe f xs'| None -> myfiltermaybe f xs' ) )) (*val bytes_of_natural: endianness -> natural (*size*) -> natural (*value*) -> byte_sequence*) let bytes_of_natural en size2 n:Byte_sequence_wrapper.byte_sequence= (byte_sequence_of_byte_list ( if Nat_big_num.equal size2( (Nat_big_num.of_int 8)) then bytes_of_elf64_xword en (Uint64_wrapper.of_bigint n) else if Nat_big_num.equal size2( (Nat_big_num.of_int 4)) then bytes_of_elf32_word en (Uint32_wrapper.of_bigint n) else failwith "bytes_of_natural given size that is not 4 or 8")) let rec natural_of_bytes_little bs : Nat_big_num.num= ((match read_char bs with | Fail _ -> (Nat_big_num.of_int 0) | Success (b, bs') -> Nat_big_num.add (natural_of_byte b) (Nat_big_num.mul( (Nat_big_num.of_int 256)) (natural_of_bytes_little bs')) )) let rec natural_of_bytes_big acc bs:Nat_big_num.num= ((match read_char bs with | Fail _ -> acc | Success (b, bs') -> natural_of_bytes_big ( Nat_big_num.add(natural_of_byte b) (Nat_big_num.mul( (Nat_big_num.of_int 256)) acc)) bs' )) (*val natural_of_bytes: endianness -> byte_sequence -> natural*) let natural_of_bytes en bs:Nat_big_num.num= ((match en with | Little -> natural_of_bytes_little bs | Big -> natural_of_bytes_big( (Nat_big_num.of_int 0)) bs )) (* TODO: generalise *) (* match bs with | b0::b1::b2::b3::b4::b5::b6::b7::[] -> let v = if en=Little then natural_of_byte b0 + 256*natural_of_byte b1 + 256*256*natural_of_byte b2 + 256*256*256*natural_of_byte b3 + (256*256*256*256*(natural_of_byte b4 + 256*natural_of_byte b5 + 256*256*natural_of_byte b6 + 256*256*256*natural_of_byte b7)) else natural_of_byte b7 + 256*natural_of_byte b6 + 256*256*natural_of_byte b5 + 256*256*256*natural_of_byte b4 + (256*256*256*256*(natural_of_byte b3 + 256*natural_of_byte b2 + 256*256*natural_of_byte b1 + 256*256*256*natural_of_byte b0)) in v | b0::b1::b2::b3::[] -> let v = if en=Little then natural_of_byte b0 + 256*natural_of_byte b1 + 256*256*natural_of_byte b2 + 256*256*256*natural_of_byte b3 else natural_of_byte b3 + 256*natural_of_byte b2 + 256*256*natural_of_byte b1 + 256*256*256*natural_of_byte b0 in v | b0::b1::[] -> let v = if en=Little then natural_of_byte b0 + 256*natural_of_byte b1 else natural_of_byte b1 + 256*natural_of_byte b0 in v | b0::[] -> natural_of_byte b0 | _ -> Assert_extra.failwith "natural_of_bytes given not-8/4/2/1 bytes" end *) (*val bigunionListMap : forall 'a 'b. SetType 'b => ('a -> set 'b) -> list 'a -> set 'b*) let rec bigunionListMap dict_Basic_classes_SetType_b f xs:'b Pset.set= ((match xs with | [] ->(Pset.from_list dict_Basic_classes_SetType_b.setElemCompare_method []) | x::xs' -> Pset.(union) (f x) (bigunionListMap dict_Basic_classes_SetType_b f xs') )) let rec mytake' (n:Nat_big_num.num) acc xs:('a list*'a list)option= ( if(Nat_big_num.equal n ( (Nat_big_num.of_int 0))) then (Some (List.rev acc, xs)) else ((match xs with [] -> None | x::xs' -> mytake' (Nat_big_num.sub_nat n ( (Nat_big_num.of_int 1))) (x :: acc) xs' ))) (*val mytake : forall 'a. natural -> (list 'a) -> maybe (list 'a * list 'a)*) let mytake n xs:('a list*'a list)option= (mytake' n [] xs) (*val mynth : forall 'a. natural -> (list 'a) -> maybe 'a*) let rec mynth (n:Nat_big_num.num) xs:'a option= ( (*Assert_extra.failwith "mynth"*) if(Nat_big_num.equal n ( (Nat_big_num.of_int 0))) then ((match xs with x::xs' -> Some x | [] -> None )) else ((match xs with x::xs' -> mynth (Nat_big_num.sub_nat n ( (Nat_big_num.of_int 1))) xs' ))) (** basic pretty printing *) let pphexplain n:string= (unsafe_hex_string_of_natural 0 n) let pphex n:string= ("0x" ^ pphexplain n) (*val abs : integer -> natural*) (*declare isabelle target_rep function abs = `int` declare coq target_rep function abs n = (`Zpred` (`Zpos` (`P_of_succ_nat` n))) (* TODO: check*) *) let pphex_integer n:string= (if Nat_big_num.less n( (Nat_big_num.of_int 0)) then "-" ^ pphex (Nat_big_num.abs n) else pphex (Nat_big_num.abs n)) let ppbytes bs:string= (string_of_list instance_Show_Show_string_dict (Lem_list.map (fun x -> hex_string_of_byte x) (byte_list_of_byte_sequence bs))) let rec ppbytes2 n bs:string= ((match read_char bs with | Fail _ -> "" | Success (x,xs') -> "<" ^ (pphex n ^ ("> " ^ (hex_string_of_byte x ^ ("\n" ^ ppbytes2 (Nat_big_num.add n( (Nat_big_num.of_int 1))) xs')))) )) let rec ppbytesplain (c:p_context) (n:Nat_big_num.num) bs:string= (Nat_big_num.to_string (natural_of_bytes c.endianness bs)) (* unsafe_hex_string_of_uc_list (List.map unsigned_char_of_byte xs) (*match xs with | [] -> "" | x::xs' -> pphexplain x ^ ppbytesplain (n+1) xs' end*) *) (* workaround: from String *) (*val mytoString : list char -> string*) let string_of_bytes bs:string= (Xstring.implode (Lem_list.map (fun x-> x) bs)) let just_one s xs:'a= ((match xs with | [] -> failwith ("no " ^ s) | x1::x2::_ -> failwith ("more than one " ^ s) | [x] -> x )) let max_address (as': Nat_big_num.num) : Nat_big_num.num= ( if(Nat_big_num.equal as' ( (Nat_big_num.of_int 4))) then (natural_of_hex "0xffffffff") else ( if(Nat_big_num.equal as' ( (Nat_big_num.of_int 8))) then (natural_of_hex "0xffffffffffffffff") else (failwith "max_address size not 4 or 8"))) (** lookup of encodings *) (*val lookup_Ab_b : forall 'a 'b. Eq 'a => 'a -> list ('a * 'b) -> maybe 'b*) let rec lookup_Ab_b dict_Basic_classes_Eq_a x0 xys:'b option= ((match xys with | [] -> None | (x,y)::xys' -> if dict_Basic_classes_Eq_a.isEqual_method x x0 then Some y else lookup_Ab_b dict_Basic_classes_Eq_a x0 xys' )) (*val lookup_aB_a : forall 'a 'b. Eq 'b => 'b -> list ('a * 'b) -> maybe 'a*) let rec lookup_aB_a dict_Basic_classes_Eq_b y0 xys:'a option= ((match xys with | [] -> None | (x,y)::xys' -> if dict_Basic_classes_Eq_b.isEqual_method y y0 then Some x else lookup_aB_a dict_Basic_classes_Eq_b y0 xys' )) (*val lookup_aBc_a : forall 'a 'b 'c. Eq 'b => 'b -> list ('a * 'b * 'c) -> maybe 'a*) let rec lookup_aBc_a dict_Basic_classes_Eq_b y0 xyzs:'a option= ((match xyzs with | [] -> None | (x,y,_)::xyzs' -> if dict_Basic_classes_Eq_b.isEqual_method y y0 then Some x else lookup_aBc_a dict_Basic_classes_Eq_b y0 xyzs' )) (*val lookup_aBc_ac : forall 'a 'b 'c. Eq 'b => 'b -> list ('a * 'b * 'c) -> maybe ('a*'c)*) let rec lookup_aBc_ac dict_Basic_classes_Eq_b y0 xyzs:('a*'c)option= ((match xyzs with | [] -> None | (x,y,z)::xyzs' -> if dict_Basic_classes_Eq_b.isEqual_method y y0 then Some (x,z) else lookup_aBc_ac dict_Basic_classes_Eq_b y0 xyzs' )) (*val lookup_Abc_b : forall 'a 'b 'c. Eq 'a => 'a -> list ('a * 'b * 'c) -> maybe 'b*) let rec lookup_Abc_b dict_Basic_classes_Eq_a x0 xyzs:'b option= ((match xyzs with | [] -> None | (x,y,_)::xyzs' -> if dict_Basic_classes_Eq_a.isEqual_method x x0 then Some y else lookup_Abc_b dict_Basic_classes_Eq_a x0 xyzs' )) (*val lookup_aBcd_a : forall 'a 'b 'c 'd. Eq 'b => 'b -> list ('a * 'b * 'c * 'd) -> maybe 'a*) let rec lookup_aBcd_a dict_Basic_classes_Eq_b y0 xyzws:'a option= ((match xyzws with | [] -> None | (x,y,_,_)::xyzws' -> if dict_Basic_classes_Eq_b.isEqual_method y y0 then Some x else lookup_aBcd_a dict_Basic_classes_Eq_b y0 xyzws' )) (*val lookup_aBcd_acd : forall 'a 'b 'c 'd. Eq 'b => 'b -> list ('a * 'b * 'c * 'd) -> maybe ('a * 'c * 'd)*) let rec lookup_aBcd_acd dict_Basic_classes_Eq_b y0 xyzws:('a*'c*'d)option= ((match xyzws with | [] -> None | (x,y,z,w)::xyzws' -> if dict_Basic_classes_Eq_b.isEqual_method y y0 then Some (x,z,w) else lookup_aBcd_acd dict_Basic_classes_Eq_b y0 xyzws' )) (*val lookup_abCde_de : forall 'a 'b 'c 'd 'e. Eq 'c => 'c -> list ('a * 'b * 'c * 'd * 'e) -> maybe ('d * 'e)*) let rec lookup_abCde_de dict_Basic_classes_Eq_c z0 xyzwus:('d*'e)option= ((match xyzwus with | [] -> None | (x,y,z,w,u)::xyzwus' -> if dict_Basic_classes_Eq_c.isEqual_method z z0 then Some (w,u) else lookup_abCde_de dict_Basic_classes_Eq_c z0 xyzwus' )) let pp_maybe ppf n:string= ((match ppf n with Some s -> s | None -> "Unknown AT value: " ^ pphexplain n (*encoding not found: "" ^ pphex n*) )) let pp_tag_encoding n:string= (pp_maybe (fun n -> lookup_aB_a instance_Basic_classes_Eq_Num_natural_dict n tag_encodings) n) let pp_attribute_encoding n:string= (pp_maybe (fun n -> lookup_aBc_a instance_Basic_classes_Eq_Num_natural_dict n attribute_encodings) n) let pp_attribute_form_encoding n:string= (pp_maybe (fun n -> lookup_aBc_a instance_Basic_classes_Eq_Num_natural_dict n attribute_form_encodings) n) let pp_operation_encoding n:string= (pp_maybe (fun n -> lookup_aBcd_a instance_Basic_classes_Eq_Num_natural_dict n operation_encodings) n) let tag_encode (s: string) : Nat_big_num.num= ((match lookup_Ab_b instance_Basic_classes_Eq_string_dict s tag_encodings with | Some n -> n | None -> failwith ("tag_encode: \""^(s^"\"")) )) let attribute_encode (s: string) : Nat_big_num.num= ((match lookup_Abc_b instance_Basic_classes_Eq_string_dict s attribute_encodings with | Some n -> n | None -> failwith ("attribute_encode: \""^(s^"\"")) )) let attribute_form_encode (s: string) : Nat_big_num.num= ((match lookup_Abc_b instance_Basic_classes_Eq_string_dict s attribute_form_encodings with | Some n -> n | None -> failwith "attribute_form_encode" )) let base_type_attribute_encode (s: string) : Nat_big_num.num= ((match lookup_Ab_b instance_Basic_classes_Eq_string_dict s base_type_attribute_encodings with | Some n -> n | None -> failwith "base_type_attribute_encode" )) (** ************************************************************ *) (** ** parser combinators and primitives ********************* *) (** ************************************************************ *) (* parsing combinators *) type parse_context = { pc_bytes: byte_sequence0; pc_offset: Nat_big_num.num } type 'a parse_result = | PR_success of 'a * parse_context | PR_fail of string * parse_context type 'a parser = parse_context -> 'a parse_result let pp_parse_context pc:string= ("pc_offset = " ^ pphex pc.pc_offset) let pp_parse_fail s pc:string= ("Parse fail\n" ^ (s ^ (" at " ^ (pp_parse_context pc ^ "\n")))) let pp_parse_result ppa pr:string= ((match pr with | PR_success( x, pc) -> "Parse success\n" ^ (ppa x ^ ("\n" ^ (pp_parse_context pc ^ "\n"))) | PR_fail( s, pc) -> pp_parse_fail s pc )) (* [(>>=)] should be the monadic binding function for [parse_result]. *) (* but there's a type clash if we use >>=, and lem seems to output bad ocaml for >>>=. So we just use a non-infix version for now *) (*val pr_bind : forall 'a 'b. parse_result 'a -> ('a -> parser 'b) -> parse_result 'b*) let pr_bind x f:'b parse_result= ((match x with | PR_success( v, pc) -> f v pc | PR_fail( err, pc) -> PR_fail( err, pc) )) (*val pr_return : forall 'a. 'a -> (parser 'a)*) let pr_return x pc:'a parse_result= (PR_success( x, pc)) (*val pr_map : forall 'a 'b. ('a -> 'b) -> parse_result 'a -> parse_result 'b*) let pr_map f x:'b parse_result= ((match x with | PR_success( v, pc) -> PR_success( (f v), pc) | PR_fail( err, pc) -> PR_fail( err, pc) )) (*val pr_map2 : forall 'a 'b. ('a -> 'b) -> (parser 'a) -> (parser 'b)*) let pr_map2 f p:parse_context ->'b parse_result= (fun pc -> pr_map f (p pc)) (*val pr_post_map1 : forall 'a 'b. (parse_result 'a) -> ('a -> 'b) -> (parse_result 'b)*) let pr_post_map1 x f:'b parse_result= (pr_map f x) (* val pr_post_map : forall 'a 'b 'c. ('c -> parse_result 'a) -> ('a -> 'b) -> ('c -> parse_result 'b) let pr_post_map g f = fun x -> pr_map f (g x) *) (*val pr_post_map : forall 'a 'b. (parser 'a) -> ('a -> 'b) -> (parser 'b)*) let pr_post_map p f:parse_context ->'b parse_result= (fun (pc: parse_context) -> pr_map f (p pc)) (*val pr_with_pos : forall 'a. (parser 'a) -> (parser (natural * 'a))*) let pr_with_pos p:parse_context ->(Nat_big_num.num*'a)parse_result= (fun pc -> pr_map (fun x -> (pc.pc_offset,x)) (p pc)) (*val parse_pair : forall 'a 'b. (parser 'a) -> (parser 'b) -> (parser ('a * 'b))*) let parse_pair p1 p2:parse_context ->('a*'b)parse_result= (fun pc -> let _ = (my_debug "pair ") in pr_bind (p1 pc) (fun x pc' -> (match p2 pc' with | PR_success( y, pc'') -> PR_success( (x,y), pc'') | PR_fail( s, pc'') -> PR_fail( s, pc'') ))) (*val parse_triple : forall 'a 'b 'c. (parser 'a) -> (parser 'b) -> (parser 'c) -> parser ('a * ('b * 'c))*) let parse_triple p1 p2 p3:parse_context ->('a*('b*'c))parse_result= (parse_pair p1 (parse_pair p2 p3)) (*val parse_quadruple : forall 'a 'b 'c 'd. (parser 'a) -> (parser 'b) -> (parser 'c) -> (parser 'd) -> parser ('a * ('b * ('c * 'd)))*) let parse_quadruple p1 p2 p3 p4:parse_context ->('a*('b*('c*'d)))parse_result= (parse_pair p1 (parse_pair p2 (parse_pair p3 p4))) (*val parse_pentuple : forall 'a 'b 'c 'd 'e. (parser 'a) -> (parser 'b) -> (parser 'c) -> (parser 'd) -> (parser 'e) -> parser ('a * ('b * ('c * ('d * 'e))))*) let parse_pentuple p1 p2 p3 p4 p5:parse_context ->('a*('b*('c*('d*'e))))parse_result= (parse_pair p1 (parse_pair p2 (parse_pair p3 (parse_pair p4 p5)))) (*val parse_sextuple : forall 'a 'b 'c 'd 'e 'f. (parser 'a) -> (parser 'b) -> (parser 'c) -> (parser 'd) -> (parser 'e) -> (parser 'f) -> parser ('a * ('b * ('c * ('d * ('e * 'f)))))*) let parse_sextuple p1 p2 p3 p4 p5 p6:parse_context ->('a*('b*('c*('d*('e*'f)))))parse_result= (parse_pair p1 (parse_pair p2 (parse_pair p3 (parse_pair p4 (parse_pair p5 p6))))) (*val parse_dependent_pair : forall 'a 'b. (parser 'a) -> ('a -> parser 'b) -> (parser ('a * 'b))*) let parse_dependent_pair p1 p2:parse_context ->('a*'b)parse_result= (fun pc -> pr_bind (p1 pc) (fun x pc' -> (match p2 x pc' with | PR_success( y, pc'') -> PR_success( (x,y), pc'') | PR_fail( s, pc'') -> PR_fail( s, pc'') ))) (*val parse_dependent : forall 'a 'b. (parser 'a) -> ('a -> parser 'b) -> (parser 'b)*) let parse_dependent p1 p2:parse_context ->'b parse_result= (fun pc -> pr_bind (p1 pc) (fun x pc' -> p2 x pc')) (*val parse_list' : forall 'a. (parser (maybe 'a)) -> (list 'a -> parser (list 'a))*) let rec parse_list' p1:'a list ->parse_context ->('a list)parse_result= (fun acc pc -> let _ = (my_debug "list' ") in pr_bind (p1 pc) (fun mx pc' -> (match mx with | None -> PR_success( acc, pc') | Some x -> parse_list' p1 (x :: acc) pc' ))) (*val parse_list : forall 'a. (parser (maybe 'a)) -> (parser (list 'a))*) let parse_list p1:parse_context ->('a list)parse_result= (pr_post_map (parse_list' p1 []) (List.rev)) (*val parse_parser_list : forall 'a. (list (parser 'a)) -> (parser (list 'a))*) let rec parse_parser_list ps:parse_context ->('a list)parse_result= ((match ps with | [] -> pr_return [] | p::ps' -> (fun pc -> pr_bind (p pc) (fun x pc' -> (match parse_parser_list ps' pc' with | PR_success( xs, pc'') -> PR_success( (x::xs), pc'') | PR_fail( s, pc'') -> PR_fail( s, pc'') ))) )) (*val parse_maybe : forall 'a. parser 'a -> parser (maybe 'a)*) let parse_maybe p:parse_context ->('a option)parse_result= (fun pc -> if(Nat_big_num.equal (Byte_sequence.length0 pc.pc_bytes) ( (Nat_big_num.of_int 0))) then (pr_return None pc) else ((match p pc with | PR_success ( v , pc'' ) -> PR_success ( (Some v) , pc'' ) | PR_fail ( s , pc'' ) -> PR_fail ( s , pc'' ) ))) (*val parse_demaybe : forall 'a. string ->parser (maybe 'a) -> parser 'a*) let parse_demaybe s p:parse_context ->'a parse_result= (fun pc -> (match p pc with | PR_success( (Some v), pc'') -> PR_success( v, pc'') | PR_success( (None), pc'') -> PR_fail( s, pc'') | PR_fail( s, pc'') -> PR_fail( s, pc'') )) (*val parse_restrict_length : forall 'a. natural -> parser 'a -> parser 'a*) let parse_restrict_length n p:parse_context ->'a parse_result= (fun pc -> (match partition0 n pc.pc_bytes with | Fail _ -> failwith "parse_restrict_length not given enough bytes" | Success (xs,ys) -> let pc' = ({ pc_bytes = xs; pc_offset = (pc.pc_offset) }) in p pc' )) (* parsing of basic types *) let parse_byte :(char) parser= (fun (pc:parse_context) -> (match read_char pc.pc_bytes with | Fail _ -> PR_fail( "parse_byte", pc) | Success (b,bs) -> PR_success( b, ({pc_bytes=bs; pc_offset= (Nat_big_num.add pc.pc_offset( (Nat_big_num.of_int 1))) } )) )) let parse_n_bytes (n:Nat_big_num.num) : (byte_sequence0) parser= (fun (pc:parse_context) -> (match partition0 n pc.pc_bytes with | Fail _ -> PR_fail( ("parse_n_bytes n=" ^ pphex n), pc) | Success (xs,bs) -> PR_success( xs, ({pc_bytes=bs; pc_offset= (Nat_big_num.add pc.pc_offset (Byte_sequence.length0 xs)) } )) )) let bzero:char= (Char.chr (Nat_big_num.to_int ( (Nat_big_num.of_int 0)))) let parse_string : (byte_sequence0) parser= (fun (pc:parse_context) -> (match find_byte pc.pc_bytes bzero with | None -> PR_fail( "parse_string", pc) | Some n -> pr_bind (parse_n_bytes n pc) (fun res pc -> pr_bind (parse_byte pc) (fun _ pc -> pr_return res pc)) )) (* parse a null-terminated string; return Nothing if it is empty, Just s otherwise *) let parse_non_empty_string : ( byte_sequence0 option) parser= (fun (pc:parse_context) -> pr_bind (parse_string pc) (fun str pc -> if Nat_big_num.equal (Byte_sequence.length0 str)( (Nat_big_num.of_int 0)) then pr_return None pc else pr_return (Some str) pc)) let parse_uint8 : Nat_big_num.num parser= (fun (pc:parse_context) -> let _ = (my_debug "uint8 ") in (match read_char pc.pc_bytes with | Success (b, bytes) -> let v = (natural_of_byte b) in PR_success( v, ({ pc_bytes = bytes; pc_offset = (Nat_big_num.add pc.pc_offset( (Nat_big_num.of_int 1))) })) | _ -> PR_fail( "parse_uint32 not given enough bytes", pc) )) let parse_uint8_constant (v:Nat_big_num.num) : Nat_big_num.num parser= (fun (pc:parse_context) -> let _ = (my_debug "uint8_constant ") in PR_success( v, pc)) let parse_uint16 c : Nat_big_num.num parser= (fun (pc:parse_context) -> let _ = (my_debug "uint16 ") in (match read_2_bytes_be pc.pc_bytes with | Success ((b0,b1),bytes') -> let v = (if c.endianness=Little then Nat_big_num.add (natural_of_byte b0)(Nat_big_num.mul( (Nat_big_num.of_int 256))(natural_of_byte b1)) else Nat_big_num.add (natural_of_byte b1)(Nat_big_num.mul( (Nat_big_num.of_int 256))(natural_of_byte b0))) in PR_success( v, ({ pc_bytes = bytes'; pc_offset = (Nat_big_num.add pc.pc_offset( (Nat_big_num.of_int 2))) })) | _ -> PR_fail( "parse_uint32 not given enough bytes", pc) )) let parse_uint32 c : Nat_big_num.num parser= (fun (pc:parse_context) -> let _ = (my_debug "uint32 ") in (match read_4_bytes_be pc.pc_bytes with | Success ((b0,b1,b2,b3),bytes') -> let v = (if c.endianness=Little then Nat_big_num.add (Nat_big_num.add (Nat_big_num.add (natural_of_byte b0)(Nat_big_num.mul( (Nat_big_num.of_int 256))(natural_of_byte b1)))(Nat_big_num.mul(Nat_big_num.mul( (Nat_big_num.of_int 256))( (Nat_big_num.of_int 256)))(natural_of_byte b2)))(Nat_big_num.mul(Nat_big_num.mul(Nat_big_num.mul( (Nat_big_num.of_int 256))( (Nat_big_num.of_int 256)))( (Nat_big_num.of_int 256)))(natural_of_byte b3)) else Nat_big_num.add (Nat_big_num.add (Nat_big_num.add (natural_of_byte b3)(Nat_big_num.mul( (Nat_big_num.of_int 256))(natural_of_byte b2)))(Nat_big_num.mul(Nat_big_num.mul( (Nat_big_num.of_int 256))( (Nat_big_num.of_int 256)))(natural_of_byte b1)))(Nat_big_num.mul(Nat_big_num.mul(Nat_big_num.mul( (Nat_big_num.of_int 256))( (Nat_big_num.of_int 256)))( (Nat_big_num.of_int 256)))(natural_of_byte b0))) in PR_success( v, ({ pc_bytes = bytes'; pc_offset = (Nat_big_num.add pc.pc_offset( (Nat_big_num.of_int 4))) })) | _ -> PR_fail( "parse_uint32 not given enough bytes", pc) )) let parse_uint64 c : Nat_big_num.num parser= (fun (pc:parse_context) -> let _ = (my_debug "uint64 ") in (match read_8_bytes_be pc.pc_bytes with | Success ((b0,b1,b2,b3,b4,b5,b6,b7),bytes') -> let v = (if c.endianness=Little then Nat_big_num.add (Nat_big_num.add (Nat_big_num.add (Nat_big_num.add (natural_of_byte b0)(Nat_big_num.mul( (Nat_big_num.of_int 256))(natural_of_byte b1)))(Nat_big_num.mul(Nat_big_num.mul( (Nat_big_num.of_int 256))( (Nat_big_num.of_int 256)))(natural_of_byte b2)))(Nat_big_num.mul(Nat_big_num.mul(Nat_big_num.mul( (Nat_big_num.of_int 256))( (Nat_big_num.of_int 256)))( (Nat_big_num.of_int 256)))(natural_of_byte b3))) (Nat_big_num.mul(Nat_big_num.mul(Nat_big_num.mul(Nat_big_num.mul( (Nat_big_num.of_int 256))( (Nat_big_num.of_int 256)))( (Nat_big_num.of_int 256)))( (Nat_big_num.of_int 256)))( Nat_big_num.add (Nat_big_num.add (Nat_big_num.add(natural_of_byte b4)(Nat_big_num.mul( (Nat_big_num.of_int 256))(natural_of_byte b5)))(Nat_big_num.mul(Nat_big_num.mul( (Nat_big_num.of_int 256))( (Nat_big_num.of_int 256)))(natural_of_byte b6)))(Nat_big_num.mul(Nat_big_num.mul(Nat_big_num.mul( (Nat_big_num.of_int 256))( (Nat_big_num.of_int 256)))( (Nat_big_num.of_int 256)))(natural_of_byte b7)))) else Nat_big_num.add (Nat_big_num.add (Nat_big_num.add (Nat_big_num.add (natural_of_byte b7)(Nat_big_num.mul( (Nat_big_num.of_int 256))(natural_of_byte b6)))(Nat_big_num.mul(Nat_big_num.mul( (Nat_big_num.of_int 256))( (Nat_big_num.of_int 256)))(natural_of_byte b5)))(Nat_big_num.mul(Nat_big_num.mul(Nat_big_num.mul( (Nat_big_num.of_int 256))( (Nat_big_num.of_int 256)))( (Nat_big_num.of_int 256)))(natural_of_byte b4))) (Nat_big_num.mul(Nat_big_num.mul(Nat_big_num.mul(Nat_big_num.mul( (Nat_big_num.of_int 256))( (Nat_big_num.of_int 256)))( (Nat_big_num.of_int 256)))( (Nat_big_num.of_int 256)))( Nat_big_num.add (Nat_big_num.add (Nat_big_num.add(natural_of_byte b3)(Nat_big_num.mul( (Nat_big_num.of_int 256))(natural_of_byte b2)))(Nat_big_num.mul(Nat_big_num.mul( (Nat_big_num.of_int 256))( (Nat_big_num.of_int 256)))(natural_of_byte b1)))(Nat_big_num.mul(Nat_big_num.mul(Nat_big_num.mul( (Nat_big_num.of_int 256))( (Nat_big_num.of_int 256)))( (Nat_big_num.of_int 256)))(natural_of_byte b0))))) in PR_success( v, ({ pc_bytes = bytes'; pc_offset = (Nat_big_num.add pc.pc_offset( (Nat_big_num.of_int 8))) })) | _ -> PR_fail( "parse_uint64 not given enough bytes", pc) )) let integerFromTwosComplementNatural (n:Nat_big_num.num) (half: Nat_big_num.num) (all:Nat_big_num.num) : Nat_big_num.num= (if Nat_big_num.less n half then n else Nat_big_num.sub ( n) all) let partialTwosComplementNaturalFromInteger (i:Nat_big_num.num) (half: Nat_big_num.num) (all:Nat_big_num.num) : Nat_big_num.num= (if Nat_big_num.greater_equal i( (Nat_big_num.of_int 0)) && Nat_big_num.less i ( half) then partialNaturalFromInteger i else if Nat_big_num.greater_equal i (Nat_big_num.sub( (Nat_big_num.of_int 0))( half)) && Nat_big_num.less i( (Nat_big_num.of_int 0)) then partialNaturalFromInteger ( Nat_big_num.add all i) else failwith "partialTwosComplementNaturalFromInteger") let parse_sint8 : Nat_big_num.num parser= (pr_post_map (parse_uint8) (fun n -> integerFromTwosComplementNatural n( (Nat_big_num.of_int 128))( (Nat_big_num.of_int 256)))) let parse_sint16 c : Nat_big_num.num parser= (pr_post_map (parse_uint16 c) (fun n -> integerFromTwosComplementNatural n (Nat_big_num.mul( (Nat_big_num.of_int 128))( (Nat_big_num.of_int 256))) (Nat_big_num.mul( (Nat_big_num.of_int 256))( (Nat_big_num.of_int 256))))) let parse_sint32 c : Nat_big_num.num parser= (pr_post_map (parse_uint32 c) (fun n -> integerFromTwosComplementNatural n (Nat_big_num.mul(Nat_big_num.mul(Nat_big_num.mul( (Nat_big_num.of_int 128))( (Nat_big_num.of_int 256)))( (Nat_big_num.of_int 256)))( (Nat_big_num.of_int 256))) (Nat_big_num.mul(Nat_big_num.mul(Nat_big_num.mul( (Nat_big_num.of_int 256))( (Nat_big_num.of_int 256)))( (Nat_big_num.of_int 256)))( (Nat_big_num.of_int 256))))) let parse_sint64 c : Nat_big_num.num parser= (pr_post_map (parse_uint64 c) (fun n -> integerFromTwosComplementNatural n (Nat_big_num.mul(Nat_big_num.mul(Nat_big_num.mul(Nat_big_num.mul(Nat_big_num.mul(Nat_big_num.mul(Nat_big_num.mul( (Nat_big_num.of_int 128))( (Nat_big_num.of_int 256)))( (Nat_big_num.of_int 256)))( (Nat_big_num.of_int 256)))( (Nat_big_num.of_int 256)))( (Nat_big_num.of_int 256)))( (Nat_big_num.of_int 256)))( (Nat_big_num.of_int 256))) (Nat_big_num.mul(Nat_big_num.mul(Nat_big_num.mul(Nat_big_num.mul(Nat_big_num.mul(Nat_big_num.mul(Nat_big_num.mul( (Nat_big_num.of_int 256))( (Nat_big_num.of_int 256)))( (Nat_big_num.of_int 256)))( (Nat_big_num.of_int 256)))( (Nat_big_num.of_int 256)))( (Nat_big_num.of_int 256)))( (Nat_big_num.of_int 256)))( (Nat_big_num.of_int 256))))) let rec parse_ULEB128' (acc: Nat_big_num.num) (shift_factor: Nat_big_num.num) : Nat_big_num.num parser= (fun (pc:parse_context) -> let _ = (my_debug "ULEB128' ") in (match read_char pc.pc_bytes with | Success (b,bytes') -> let n = (natural_of_byte b) in let acc' = (Nat_big_num.add (Nat_big_num.mul (Nat_big_num.bitwise_and n( (Nat_big_num.of_int 127))) shift_factor) acc) in let finished = ( Nat_big_num.equal(Nat_big_num.bitwise_and n( (Nat_big_num.of_int 128)))( (Nat_big_num.of_int 0))) in let pc' = ({ pc_bytes = bytes'; pc_offset = (Nat_big_num.add pc.pc_offset( (Nat_big_num.of_int 1))) }) in if finished then PR_success( acc', pc') else parse_ULEB128' acc' ( Nat_big_num.mul shift_factor( (Nat_big_num.of_int 128))) pc' | _ -> PR_fail( "parse_ULEB128' not given enough bytes", pc) )) let parse_ULEB128 : Nat_big_num.num parser= (fun (pc:parse_context) -> parse_ULEB128'( (Nat_big_num.of_int 0))( (Nat_big_num.of_int 1)) pc) let rec parse_SLEB128' (acc: Nat_big_num.num) (shift_factor: Nat_big_num.num) : (bool * Nat_big_num.num * Nat_big_num.num) parser= (fun (pc:parse_context) -> let _ = (my_debug "SLEB128' ") in (match read_char pc.pc_bytes with | Success (b,bytes') -> let n = (natural_of_byte b) in let acc' = (Nat_big_num.add acc (Nat_big_num.mul (Nat_big_num.bitwise_and n( (Nat_big_num.of_int 127))) shift_factor)) in let shift_factor' = (Nat_big_num.mul shift_factor( (Nat_big_num.of_int 128))) in let finished = ( Nat_big_num.equal(Nat_big_num.bitwise_and n( (Nat_big_num.of_int 128)))( (Nat_big_num.of_int 0))) in let positive = ( Nat_big_num.equal(Nat_big_num.bitwise_and n( (Nat_big_num.of_int 64)))( (Nat_big_num.of_int 0))) in let pc' = ({ pc_bytes = bytes'; pc_offset = (Nat_big_num.add pc.pc_offset( (Nat_big_num.of_int 1))) }) in if finished then PR_success( (positive, shift_factor', acc'), pc') else parse_SLEB128' acc' shift_factor' pc' | _ -> PR_fail( "parse_SLEB128' not given enough bytes", pc) )) let parse_SLEB128 : Nat_big_num.num parser= (pr_post_map (parse_SLEB128'( (Nat_big_num.of_int 0))( (Nat_big_num.of_int 1))) (fun (positive, shift_factor, acc) -> if positive then acc else Nat_big_num.sub ( acc) ( shift_factor))) let parse_nonzero_ULEB128_pair : ( (Nat_big_num.num*Nat_big_num.num)option) parser= (let _ = (my_debug "nonzero_ULEB128_pair ") in pr_post_map (parse_pair parse_ULEB128 parse_ULEB128) (fun (n1,n2) -> if Nat_big_num.equal n1( (Nat_big_num.of_int 0)) &&Nat_big_num.equal n2( (Nat_big_num.of_int 0)) then None else Some (n1,n2))) let parse_zero_terminated_ULEB128_pair_list : ( (Nat_big_num.num*Nat_big_num.num)list) parser= (let _ = (my_debug "zero_terminated_ULEB128_pair_list ") in parse_list parse_nonzero_ULEB128_pair) let parse_uintDwarfN c (df: dwarf_format) : Nat_big_num.num parser= ((match df with | Dwarf32 -> (parse_uint32 c) | Dwarf64 -> (parse_uint64 c) )) let parse_uint_address_size c (as': Nat_big_num.num) : Nat_big_num.num parser= ( if(Nat_big_num.equal as' ( (Nat_big_num.of_int 4))) then (parse_uint32 c) else ( if(Nat_big_num.equal as' ( (Nat_big_num.of_int 8))) then (parse_uint64 c) else (failwith ("cuh_address_size not 4 or 8: " ^ Nat_big_num.to_string as')))) let parse_uint_segment_selector_size c (ss: Nat_big_num.num) : ( Nat_big_num.num option) parser= ( if(Nat_big_num.equal ss ( (Nat_big_num.of_int 0))) then (pr_return None) else ( if(Nat_big_num.equal ss ( (Nat_big_num.of_int 1))) then (pr_post_map (parse_uint8) (fun n -> Some n)) else ( if(Nat_big_num.equal ss ( (Nat_big_num.of_int 2))) then (pr_post_map (parse_uint16 c) (fun n -> Some n)) else ( if(Nat_big_num.equal ss ( (Nat_big_num.of_int 4))) then (pr_post_map (parse_uint32 c) (fun n -> Some n)) else ( if(Nat_big_num.equal ss ( (Nat_big_num.of_int 8))) then (pr_post_map (parse_uint64 c) (fun n -> Some n)) else (failwith "cuh_address_size not 4 or 8")))))) (** ************************************************************ *) (** ** parsing and pretty printing of .debug_* sections ****** *) (** ************************************************************ *) (** abbreviations table: pp and parsing *) let pp_abbreviation_declaration (x:abbreviation_declaration):string= (" " ^ (Nat_big_num.to_string x.ad_abbreviation_code ^ (" " ^ (pp_tag_encoding x.ad_tag ^ (" " ^ ((if x.ad_has_children then "[has children]" else "[no children]") ^ ("\n" (* ^ " "^show (List.length x.ad_attribute_specifications) ^ " attributes\n"*) ^ (String.concat "" (Lem_list.map (fun (n1,n2) -> " " ^ (right_space_padded_to( (Nat_big_num.of_int 18)) (pp_attribute_encoding n1) ^ (" " ^ (pp_attribute_form_encoding n2 ^ "\n")))) x.ad_attribute_specifications) ^ " DW_AT value: 0 DW_FORM value: 0\n")))))))) let pp_abbreviations_table (x:abbreviations_table):string= ("offset: "^(pphex x.at_offset^("\n" ^ String.concat "" (Lem_list.map (pp_abbreviation_declaration) x.at_table)))) (* print the distinct abbreviation tables used by all compilation units *) let rec remove_duplicates dict_Basic_classes_Eq_a xys xys_acc:('a*'b)list= ((match xys with | [] -> List.rev xys_acc | (x,y)::xys' -> if List.exists (fun (x',y') -> dict_Basic_classes_Eq_a.isEqual_method x' x) xys_acc then remove_duplicates dict_Basic_classes_Eq_a xys' xys_acc else remove_duplicates dict_Basic_classes_Eq_a xys' ((x,y)::xys_acc) )) let pp_abbreviations_tables (d:dwarf):string= (let xs : (Nat_big_num.num * abbreviations_table) list = (Lem_list.map (fun cu -> (cu.cu_header.cuh_debug_abbrev_offset, cu.cu_abbreviations_table)) d.d_compilation_units) in let ys = (remove_duplicates instance_Basic_classes_Eq_Num_natural_dict xs []) in String.concat "*********************\n" (Lem_list.map (fun (x,y)->pp_abbreviations_table y) ys)) let parse_abbreviation_declaration c : ( abbreviation_declaration option) parser= (fun (pc: parse_context) -> pr_bind (parse_ULEB128 pc) (fun n1 pc' -> if Nat_big_num.equal n1( (Nat_big_num.of_int 0)) then PR_success( None, pc') else pr_bind (parse_ULEB128 pc') (fun n2 pc'' -> pr_bind (parse_uint8 pc'') (fun c pc''' -> pr_post_map1 (parse_zero_terminated_ULEB128_pair_list pc''') (fun l -> Some ( let ad = ({ ad_abbreviation_code = n1; ad_tag = n2; ad_has_children = (not (Nat_big_num.equal c( (Nat_big_num.of_int 0)))); ad_attribute_specifications = l; }) in (* let _ = my_debug2 (pp_abbreviation_declaration ad) in *) ad) ))))) let parse_abbreviations_table c:parse_context ->((abbreviation_declaration)list)parse_result= (parse_list (parse_abbreviation_declaration c)) (** debug_str entry *) let rec null_terminated_bs (bs: byte_sequence0) : byte_sequence0= ((match find_byte bs bzero with | Some i -> (match takebytes i bs with | Success bs' -> bs' | Fail _ -> failwith "find_byte or take_byte is broken" ) | None -> bs )) let pp_debug_str_entry (str: byte_sequence0) (n: Nat_big_num.num) : string= ((match dropbytes n str with | Fail _ -> "strp beyond .debug_str extent" | Success bs -> string_of_byte_sequence (null_terminated_bs bs) )) (** operations: pp and parsing *) let pp_operation_argument_value (oav:operation_argument_value) : string= ((match oav with | OAV_natural n -> pphex n | OAV_integer n -> pphex_integer n (* show n*) | OAV_block( n, bs) -> pphex n ^ (" " ^ ppbytes bs) )) let pp_operation_semantics (os: operation_semantics) : string= ((match os with | OpSem_lit -> "OpSem_lit" | OpSem_deref -> "OpSem_deref" | OpSem_stack _ -> "OpSem_stack ..." | OpSem_not_supported -> "OpSem_not_supported" | OpSem_binary _ -> "OpSem_binary ..." | OpSem_unary _ -> "OpSem_unary ..." | OpSem_opcode_lit _ -> "OpSem_opcode_lit ..." | OpSem_reg -> "OpSem_reg" | OpSem_breg -> "OpSem_breg" | OpSem_bregx -> "OpSem_bregx" | OpSem_fbreg -> "OpSem_fbreg" | OpSem_deref_size -> "OpSem_deref_size" | OpSem_nop -> "OpSem_nop" | OpSem_piece -> "OpSem_piece" | OpSem_bit_piece -> "OpSem_bitpiece" | OpSem_implicit_value -> "OpSem_implicit_value" | OpSem_stack_value -> "OpSem_stack_value" | OpSem_call_frame_cfa -> "OpSem_call_frame_cfa" )) let pp_operation_semantics_brief (os: operation_semantics) : string= ((match os with | OpSem_not_supported -> " (OpSem_not_supported)" | _ -> "" )) let pp_operation (op: operation) : string= (op.op_string ^ (((match op.op_argument_values with [] -> "" | _ -> " " ^ String.concat " " (Lem_list.map pp_operation_argument_value op.op_argument_values) )) ^ pp_operation_semantics_brief op.op_semantics)) let pp_operations (ops: operation list) : string= (String.concat "; " (Lem_list.map pp_operation ops)) (*val parser_of_operation_argument_type : p_context -> compilation_unit_header -> operation_argument_type -> (parser operation_argument_value)*) let parser_of_operation_argument_type c cuh oat:parse_context ->(operation_argument_value)parse_result= ((match oat with | OAT_addr -> pr_map2 (fun n -> OAV_natural n) (parse_uint_address_size c cuh.cuh_address_size) | OAT_dwarf_format_t -> pr_map2 (fun n -> OAV_natural n) (parse_uintDwarfN c cuh.cuh_dwarf_format) | OAT_uint8 -> pr_map2 (fun n -> OAV_natural n) (parse_uint8) | OAT_uint16 -> pr_map2 (fun n -> OAV_natural n) (parse_uint16 c) | OAT_uint32 -> pr_map2 (fun n -> OAV_natural n) (parse_uint32 c) | OAT_uint64 -> pr_map2 (fun n -> OAV_natural n) (parse_uint64 c) | OAT_sint8 -> pr_map2 (fun n -> OAV_integer n) (parse_sint8) | OAT_sint16 -> pr_map2 (fun n -> OAV_integer n) (parse_sint16 c) | OAT_sint32 -> pr_map2 (fun n -> OAV_integer n) (parse_sint32 c) | OAT_sint64 -> pr_map2 (fun n -> OAV_integer n) (parse_sint64 c) | OAT_ULEB128 -> pr_map2 (fun n -> OAV_natural n) parse_ULEB128 | OAT_SLEB128 -> pr_map2 (fun n -> OAV_integer n) parse_SLEB128 | OAT_block -> (fun pc -> pr_bind (parse_ULEB128 pc) (fun n pc' -> pr_map (fun bs -> OAV_block( n, bs)) (parse_n_bytes n pc'))) )) (*val parse_operation : p_context -> compilation_unit_header -> parser (maybe operation)*) let parse_operation c cuh pc:((operation)option)parse_result= ((match parse_uint8 pc with | PR_fail( s, pc') -> PR_success( None, pc) | PR_success( code, pc') -> (match lookup_aBcd_acd instance_Basic_classes_Eq_Num_natural_dict code operation_encodings with | None -> PR_fail( ("encoding not found: " ^ pphex code), pc) | Some (s,oats,opsem) -> let ps = (Lem_list.map (parser_of_operation_argument_type c cuh) oats) in (pr_post_map (parse_parser_list ps) (fun oavs -> Some { op_code = code; op_string = s; op_argument_values = oavs; op_semantics = opsem }) ) pc' ) )) (*val parse_operations : p_context -> compilation_unit_header -> parser (list operation)*) let parse_operations c cuh:parse_context ->((operation)list)parse_result= (parse_list (parse_operation c cuh)) let parse_operations_bs c cuh bs : operation list= (let pc = ({pc_bytes = bs; pc_offset =( (Nat_big_num.of_int 0)) }) in (match parse_operations c cuh pc with | PR_fail( s, pc') -> failwith ("parse_operations_bs fail: " ^ pp_parse_fail s pc') | PR_success( ops, pc') -> let _ = (if not (Nat_big_num.equal (Byte_sequence.length0 pc'.pc_bytes)( (Nat_big_num.of_int 0))) then failwith ("parse_operations_bs extra non-parsed bytes") else ()) in ops )) (*val parse_and_pp_operations : p_context -> compilation_unit_header -> byte_sequence -> string*) let parse_and_pp_operations c cuh bs:string= (let pc = ({pc_bytes = bs; pc_offset =( (Nat_big_num.of_int 0)) }) in (match parse_operations c cuh pc with | PR_fail( s, pc') -> "parse_operations fail: " ^ pp_parse_fail s pc' | PR_success( ops, pc') -> pp_operations ops ^ (if not (Nat_big_num.equal (Byte_sequence.length0 pc'.pc_bytes)( (Nat_big_num.of_int 0))) then " Warning: extra non-parsed bytes" else "") )) (** attribute values: pp and parsing *) (*val pp_attribute_value_plain : attribute_value -> string*) let pp_attribute_value_plain av:string= ((match av with | AV_addr x -> "AV_addr " ^ pphex x | AV_block( n, bs) -> "AV_block " ^ (Nat_big_num.to_string n ^ (" " ^ ppbytes bs)) | AV_constantN( n, bs) -> "AV_constantN " ^ (Nat_big_num.to_string n ^ (" " ^ ppbytes bs)) | AV_constant_SLEB128 i -> "AV_constant_SLEB128 " ^ Nat_big_num.to_string i | AV_constant_ULEB128 n -> "AV_constant_ULEB128 " ^ Nat_big_num.to_string n | AV_exprloc( n, bs) -> String.concat " " ["AV_exprloc"; Nat_big_num.to_string n; ppbytes bs] | AV_flag b -> "AV_flag " ^ string_of_bool b | AV_ref n -> "AV_ref " ^ pphex n | AV_ref_addr n -> "AV_ref_addr " ^ pphex n | AV_ref_sig8 n -> "AV_ref_sig8 " ^ pphex n | AV_sec_offset n -> "AV_sec_offset " ^ pphex n | AV_string bs -> string_of_byte_sequence bs | AV_strp n -> "AV_sec_offset " ^ (pphex n ^ " ") )) (*val pp_attribute_value : p_context -> compilation_unit_header -> byte_sequence -> natural (*attribute tag*) -> attribute_value -> string*) let pp_attribute_value c cuh str at av:string= ((match av with | AV_addr x -> "AV_addr " ^ pphex x | AV_block( n, bs) -> "AV_block " ^ (Nat_big_num.to_string n ^ (" " ^ (ppbytes bs ^ (if Nat_big_num.equal at (attribute_encode "DW_AT_location") then " " ^ parse_and_pp_operations c cuh bs else "")))) | AV_constantN( n, bs) -> "AV_constantN " ^ (Nat_big_num.to_string n ^ (" " ^ ppbytes bs)) | AV_constant_SLEB128 i -> "AV_constant_SLEB128 " ^ Nat_big_num.to_string i | AV_constant_ULEB128 n -> "AV_constant_ULEB128 " ^ Nat_big_num.to_string n | AV_exprloc( n, bs) -> String.concat " " ["AV_exprloc"; Nat_big_num.to_string n; ppbytes bs; parse_and_pp_operations c cuh bs] | AV_flag b -> "AV_flag " ^ string_of_bool b | AV_ref n -> "AV_ref " ^ pphex n | AV_ref_addr n -> "AV_ref_addr " ^ pphex n | AV_ref_sig8 n -> "AV_ref_sig8 " ^ pphex n | AV_sec_offset n -> "AV_sec_offset " ^ pphex n | AV_string bs -> string_of_byte_sequence bs | AV_strp n -> "AV_sec_offset " ^ (pphex n ^ (" " ^ pp_debug_str_entry str n)) )) (*val pp_attribute_value_like_objdump : p_context -> compilation_unit_header -> byte_sequence -> natural (*attribute tag*) -> attribute_value -> string*) let pp_attribute_value_like_objdump c cuh str at av:string= ((match av with | AV_addr x -> (*"AV_addr " ^*) pphex x | AV_block( n, bs) -> (*"AV_block " ^ show n ^ " " ^ ppbytes bs ^ if at = attribute_encode "DW_AT_location" then " " ^ parse_and_pp_operations c cuh bs else ""*) (* show n ^ " byte block: " *) ppbytesplain c n bs ^ (if Nat_big_num.equal at (attribute_encode "DW_AT_location") then " " ^ parse_and_pp_operations c cuh bs else "") | AV_constantN( n, bs) -> ppbytes bs (*"AV_constantN " ^ show n ^ " " ^ ppbytes bs*) | AV_constant_SLEB128 i -> (*"AV_constant_SLEB128 " ^*) Nat_big_num.to_string i | AV_constant_ULEB128 n -> (*"AV_constant_ULEB128 " ^*) Nat_big_num.to_string n | AV_exprloc( n, bs) -> (*"AV_exprloc " ^ show n ^ " " ^*) ppbytes bs ^ (" " ^ parse_and_pp_operations c cuh bs) | AV_flag b -> (*"AV_flag " ^*)if b then "1" else "0" | AV_ref n -> (*"AV_ref " ^*) "<"^(pphex ( Nat_big_num.add n cuh.cuh_offset)^">") | AV_ref_addr n -> (*"AV_ref_addr " ^*) "<"^(pphex n^">") | AV_ref_sig8 n -> "AV_ref_sig8 " ^ pphex n | AV_sec_offset n -> (*"AV_sec_offset " ^*) pphex n ^ (if Nat_big_num.equal at (attribute_encode "DW_AT_location") then " (location list)" else "") | AV_string bs -> string_of_byte_sequence bs | AV_strp n -> (*"AV_sec_offset " ^ pphex n ^ " " ^ pp_debug_str_entry str n*) "(indirect string, offset: "^(pphex n ^ ("): " ^ pp_debug_str_entry str n)) )) (*val parser_of_attribute_form_non_indirect : p_context -> compilation_unit_header -> natural -> parser attribute_value*) let parser_of_attribute_form_non_indirect c cuh n:parse_context ->(attribute_value)parse_result= ( (* address*)if Nat_big_num.equal n (attribute_form_encode "DW_FORM_addr") then pr_map2 (fun n -> AV_addr n) (parse_uint_address_size c cuh.cuh_address_size) (* block *) else if Nat_big_num.equal n (attribute_form_encode "DW_FORM_block1") then (fun pc -> pr_bind (parse_uint8 pc) (fun n pc' -> pr_map (fun bs -> AV_block( n, bs)) (parse_n_bytes n pc'))) else if Nat_big_num.equal n (attribute_form_encode "DW_FORM_block2") then (fun pc -> pr_bind (parse_uint16 c pc) (fun n pc' -> pr_map (fun bs -> AV_block( n, bs)) (parse_n_bytes n pc'))) else if Nat_big_num.equal n (attribute_form_encode "DW_FORM_block4") then (fun pc -> pr_bind (parse_uint32 c pc) (fun n pc' -> pr_map (fun bs -> AV_block( n, bs)) (parse_n_bytes n pc'))) else if Nat_big_num.equal n (attribute_form_encode "DW_FORM_block") then (fun pc -> pr_bind (parse_ULEB128 pc) (fun n pc' -> pr_map (fun bs -> AV_block( n, bs)) (parse_n_bytes n pc'))) (* constant *) else if Nat_big_num.equal n (attribute_form_encode "DW_FORM_data1") then pr_map2 (fun bs -> AV_block(( (Nat_big_num.of_int 1)), bs)) (parse_n_bytes( (Nat_big_num.of_int 1))) else if Nat_big_num.equal n (attribute_form_encode "DW_FORM_data2") then pr_map2 (fun bs -> AV_block(( (Nat_big_num.of_int 2)), bs)) (parse_n_bytes( (Nat_big_num.of_int 2))) else if Nat_big_num.equal n (attribute_form_encode "DW_FORM_data4") then pr_map2 (fun bs -> AV_block(( (Nat_big_num.of_int 4)), bs)) (parse_n_bytes( (Nat_big_num.of_int 4))) else if Nat_big_num.equal n (attribute_form_encode "DW_FORM_data8") then pr_map2 (fun bs -> AV_block(( (Nat_big_num.of_int 8)), bs)) (parse_n_bytes( (Nat_big_num.of_int 8))) else if Nat_big_num.equal n (attribute_form_encode "DW_FORM_sdata") then pr_map2 (fun i -> AV_constant_SLEB128 i) parse_SLEB128 else if Nat_big_num.equal n (attribute_form_encode "DW_FORM_udata") then pr_map2 (fun n -> AV_constant_ULEB128 n) parse_ULEB128 (* exprloc *) else if Nat_big_num.equal n (attribute_form_encode "DW_FORM_exprloc") then (fun pc -> pr_bind (parse_ULEB128 pc) (fun n pc' -> pr_map (fun bs -> AV_exprloc( n, bs)) (parse_n_bytes n pc'))) (* flag *) else if Nat_big_num.equal n (attribute_form_encode "DW_FORM_flag") then pr_map2 (fun n -> AV_flag (not (Nat_big_num.equal n( (Nat_big_num.of_int 0))))) (parse_uint8) else if Nat_big_num.equal n (attribute_form_encode "DW_FORM_flag_present") then pr_map2 (fun () -> AV_flag true) (pr_return ()) (* lineptr, loclistptr, macptr, rangelistptr *) else if Nat_big_num.equal n (attribute_form_encode "DW_FORM_sec_offset") then pr_map2 (fun n -> AV_sec_offset n) (parse_uintDwarfN c cuh.cuh_dwarf_format) (* reference - first type *) else if Nat_big_num.equal n (attribute_form_encode "DW_FORM_ref1") then pr_map2 (fun n -> AV_ref n) (parse_uint8) else if Nat_big_num.equal n (attribute_form_encode "DW_FORM_ref2") then pr_map2 (fun n -> AV_ref n) (parse_uint16 c) else if Nat_big_num.equal n (attribute_form_encode "DW_FORM_ref4") then pr_map2 (fun n -> AV_ref n) (parse_uint32 c) else if Nat_big_num.equal n (attribute_form_encode "DW_FORM_ref8") then pr_map2 (fun n -> AV_ref n) (parse_uint64 c) else if Nat_big_num.equal n (attribute_form_encode "DW_FORM_ref_udata") then pr_map2 (fun n -> AV_ref n) parse_ULEB128 (* reference - second type *) else if Nat_big_num.equal n (attribute_form_encode "DW_FORM_ref_addr") then pr_map2 (fun n -> AV_ref_addr n) (parse_uintDwarfN c cuh.cuh_dwarf_format) (* reference - third type *) else if Nat_big_num.equal n (attribute_form_encode "DW_FORM_ref_sig8") then pr_map2 (fun n -> AV_ref_sig8 n) (parse_uint64 c) (* string *) else if Nat_big_num.equal n (attribute_form_encode "DW_FORM_string") then pr_map2 (fun bs -> AV_string bs) parse_string else if Nat_big_num.equal n (attribute_form_encode "DW_FORM_strp") then pr_map2 (fun n -> AV_strp n) (parse_uintDwarfN c cuh.cuh_dwarf_format) (* indirect (cycle detection) *) else if Nat_big_num.equal n (attribute_form_encode "DW_FORM_indirect") then failwith "DW_FORM_INDIRECT cycle" (* unknown *) else failwith "parser_of_attribute_form_non_indirect: unknown attribute form") let parser_of_attribute_form c cuh n:parse_context ->(attribute_value)parse_result= (if Nat_big_num.equal n (attribute_form_encode "DW_FORM_indirect") then (fun pc -> pr_bind (parse_ULEB128 pc) (fun n -> parser_of_attribute_form_non_indirect c cuh n) ) else parser_of_attribute_form_non_indirect c cuh n) (* *** where to put this? *) let pp_pos pos:string= ("<" ^ (pphexplain pos ^">")) let pp_cupdie (cu,parents,die1):string= (pp_pos cu.cu_header.cuh_offset ^ ("/" ^ pp_pos die1.die_offset)) let pp_cupdie3 (cu,parents,die1):string= (pp_pos die1.die_offset ^ ("/" ^ (String.concat "/" (Lem_list.map (fun p -> pp_pos p.die_offset) parents) ^ ("/" ^ pp_pos cu.cu_header.cuh_offset)))) (** ************************************************************ *) (** ** finding things in the die tree *) (** ************************************************************ *) (*val find_maybe : forall 'a 'b. ('a -> maybe 'b) -> list 'a -> maybe 'b*) let rec find_maybe f l:'b option= ((match l with | [] -> None | x :: xs -> (match f x with | Some y -> Some y | None -> find_maybe f xs ) )) let rec find_die_by_offset_in_cu offset cu : cupdie option= ((match Pmap.lookup offset cu.cu_index with | Some (parents,die1) -> Some (cu, parents,die1) | None -> None )) let find_die_by_offset_in_all offset d : cupdie option= (find_maybe (fun cu -> find_die_by_offset_in_cu offset cu) d.d_compilation_units) (*val find_dies_in_die : (die->bool) -> compilation_unit -> list die -> die -> list cupdie*) let rec find_dies_in_die (p:die->bool) (cu:compilation_unit) (parents: die list) (d: die):(compilation_unit*(die)list*die)list= (let ds = (List.concat (map (find_dies_in_die p cu (d::parents)) d.die_children)) in if p d then (cu,parents,d)::ds else ds) let find_dies (p:die->bool) (d: dwarf) : cupdie list= (List.concat (map (fun cu -> find_dies_in_die p cu [] cu.cu_die) d.d_compilation_units)) (** convert attribute values to usable Lem types *) let string_of_string_attribute_value str av : string= ((match av with | AV_string bs -> string_of_byte_sequence bs | AV_strp n -> pp_debug_str_entry str n | _ -> "find_string_attribute_value_of_die AV not understood" )) let maybe_natural_of_constant_attribute_value die1 c av : Nat_big_num.num option= ((match av with | AV_constantN( n, bs) -> Some n | AV_constant_ULEB128 n -> Some n | AV_block( n, bs) -> Some (natural_of_bytes c.endianness bs) | _ -> None )) let natural_of_constant_attribute_value die1 c av : Nat_big_num.num= ((match maybe_natural_of_constant_attribute_value die1 c av with | Some n -> n | None -> failwith ("natural_of_constant_attribute_value fail at " ^ (pp_pos die1.die_offset ^ (" with av= " ^ pp_attribute_value_plain av))) )) let integer_of_constant_attribute_value c av : Nat_big_num.num= ((match av with | AV_constantN( n, bs) -> n | AV_constant_ULEB128 n -> n | AV_constant_SLEB128 n -> n | AV_block( n, bs) -> (natural_of_bytes c.endianness bs) | _ -> failwith ("integer_of_constant_attribute_value fail") )) let bool_of_flag_attribute_value av : bool= ((match av with | AV_flag b -> b | _ -> failwith ("bool_of_maybe_flag_attribute_value fail") )) let reference_of_reference_attribute_value c d cu str av : (compilation_unit * ( die list) * die)option= ((match av with (* "offset from the first byte of the compilation header for the compilation unit containing the reference" *) | AV_ref n -> let n' =(Nat_big_num.add n cu.cu_header.cuh_offset) in (match find_die_by_offset_in_all n' d (*cu.cu_die*) with | Some (cu',parents',die') -> Some (cu',parents',die') | None -> None (* Fail ("find_reference_attribute_of_die AV_ref failed (cuh="^pphex cu.cu_header.cuh_offset ^" n'="^pphex n'^")"^"\n"^ppd())*) ) (* offset in .debug_info *) | AV_ref_addr n -> (match find_die_by_offset_in_all n d with | Some (cu',parents',die') -> Some (cu',parents',die') | None -> None (*Fail ("find_reference_attribute_of_die AV_ref_addr failed\n"^ppd())*) ) | _ -> None (*Fail ("reference_of_reference_attribute AV ("^pp_attribute_value c cu.cu_header str (attribute_encode an) av^") not supported\n"^ppd() )*) (* TODO: handle the AV_ref_sig8 case for type signature references *) )) (** attribute find *) let find_attribute_value (an: string) (die1:die) : attribute_value option= (let at = (attribute_encode an) in let ats = (Lem_list.list_combine die1.die_abbreviation_declaration.ad_attribute_specifications die1.die_attribute_values) in myfindmaybe (fun (((at': Nat_big_num.num), (af: Nat_big_num.num)), ((pos: Nat_big_num.num),(av:attribute_value))) -> if Nat_big_num.equal at' at then Some av else None) ats) let find_string_attribute_value_of_die (an: string) str (die1:die) : string option= ((match find_attribute_value an die1 with | Some av -> let s = (string_of_string_attribute_value str av) in Some s | None -> None )) let find_natural_attribute_value_of_die c (an: string) (die1:die) : Nat_big_num.num option= ((match find_attribute_value an die1 with | Some av -> let n = (natural_of_constant_attribute_value die1 c av) in Some n | None -> None )) let find_integer_attribute_value_of_die c (an: string) (die1:die) : Nat_big_num.num option= ((match find_attribute_value an die1 with | Some av -> let n = (integer_of_constant_attribute_value c av) in Some n | None -> None )) let find_flag_attribute_value_of_die (an: string) (die1:die) : bool option= (Lem.option_map bool_of_flag_attribute_value (find_attribute_value an die1)) let find_flag_attribute_value_of_die_default_false (an: string) (die1:die) : bool= ((match find_flag_attribute_value_of_die an die1 with | Some b -> b | None -> false )) let find_name_of_die str die1 : string option= (find_string_attribute_value_of_die "DW_AT_name" str die1) let find_reference_attribute_of_die c d cu str an die1 : (compilation_unit * ( die list) * die)option= (let ppd ()= (pp_pos die1.die_offset) (*pp_die c cuh str true 0 false die ^ "\n"*) in (match find_attribute_value an die1 with | None -> None (*Fail ("find_reference_attribute_of_die found no " ^ an ^ "\n" ^ ppd())*) | Some av -> reference_of_reference_attribute_value c d cu str av )) let find_DW_AT_type_of_die c d cu str die1 : (compilation_unit * ( die list) * die)option= (find_reference_attribute_of_die c d cu str "DW_AT_type" die1) (* look up "an" in die. If not found, see if die has an abstract origin, and if so, look up "an" in that. Return the relevant cu, too *) let find_attribute_value_using_abstract_origin c d cu str an die1 : (compilation_unit * attribute_value)option= ((match find_attribute_value an die1 with | Some av -> Some (cu,av) | None -> (match find_reference_attribute_of_die c d cu str "DW_AT_abstract_origin" die1 with | None -> None (*s ^ " and no DW_AT_abstract_origin"*) | Some (cu',parents',die') -> (match find_attribute_value an die' with | Some av -> Some (cu',av) | None -> None ) ) )) let find_name_of_die_using_abstract_origin c d cu str die1 : string option= ((match find_attribute_value_using_abstract_origin c d cu str "DW_AT_name" die1 with | None -> None | Some (cu',av) -> Some (string_of_string_attribute_value str av) )) (* TODO: not sure how DW_AT_specification should interact with abstract origins *) let find_name_of_die_using_abstract_origin_and_spec c d cu str die1 mcupdie_spec : string option= ((match find_name_of_die_using_abstract_origin c d cu str die1 with | Some name1 -> Some name1 | None -> (match mcupdie_spec with | Some (((cu_spec,parents_spec,die_spec) as cupdie_spec)) -> find_name_of_die_using_abstract_origin c d cu_spec str die_spec | None -> None ) )) let find_reference_attribute_using_abstract_origin c d cu str an die1 : (compilation_unit * ( die list) * die)option= ((match find_attribute_value_using_abstract_origin c d cu str an die1 with | None -> None | Some (cu',av) -> reference_of_reference_attribute_value c d cu' str av )) let find_DW_AT_type_of_die_using_abstract_origin c d cu str die1 : (compilation_unit * ( die list) * die)option= (find_reference_attribute_using_abstract_origin c d cu str "DW_AT_type" die1) let find_flag_attribute_value_of_die_using_abstract_origin d (an: string) ((cu,parents,die1):cupdie) : bool option= (let c = (p_context_of_d d) in (match find_attribute_value_using_abstract_origin c d cu d.d_str an die1 with | None -> None | Some (cu',av) -> Some (bool_of_flag_attribute_value av) )) (** compilation unit header: pp and parsing *) let pp_dwarf_format df:string= ((match df with Dwarf32 -> "(32-bit)" | Dwarf64 -> "(64-bit)" )) let pp_unit_header (s:string) (x:compilation_unit_header) : string= ("**" ^ (s ^ (" Unit @ offset " ^ (pphex x.cuh_offset ^ ("\n" ^ (" " ^ (s ^ (" Unit @ offset " ^ (pphex x.cuh_offset ^ (":\n" ^ (" Length: " ^ (pphex x.cuh_unit_length ^ (" " ^ (pp_dwarf_format x.cuh_dwarf_format ^ ("\n" ^ (" Version: " ^ (Nat_big_num.to_string x.cuh_version ^ ("\n" ^ (" Abbrev Offset: " ^ (pphex x.cuh_debug_abbrev_offset ^ ("\n" ^ (" Pointer Size: " ^ (Nat_big_num.to_string x.cuh_address_size ^ "\n"))))))))))))))))))))))) let pp_compilation_unit_header (x:compilation_unit_header) : string= (pp_unit_header "Compilation" x) let parse_unit_length c : (dwarf_format * Nat_big_num.num) parser= (fun (pc: parse_context) -> pr_bind (parse_uint32 c pc) (fun x pc' -> if Nat_big_num.less x (natural_of_hex "0xfffffff0") then PR_success( (Dwarf32,x), pc') else if not (Nat_big_num.equal x (natural_of_hex "0xffffffff")) then PR_fail( "bad unit_length", pc) else pr_bind (parse_uint64 c pc') (fun x' pc'' -> PR_success( (Dwarf64, x'), pc')))) let parse_compilation_unit_header c : compilation_unit_header parser= (pr_post_map (pr_with_pos (parse_dependent_pair (parse_unit_length c) (fun (df,ul) -> parse_triple (parse_uint16 c) (* version *) (parse_uintDwarfN c df) (* debug abbrev offset *) (parse_uint8) (* address_size *)))) (fun (offset,((df,ul), (v, (dao, as')))) -> { cuh_offset = offset; cuh_dwarf_format = df; cuh_unit_length = ul; cuh_version = v; cuh_debug_abbrev_offset = dao; cuh_address_size = as'; })) (** type unit header: pp and parsing *) (* the test binaries don't have a .debug_types section, so this isn't tested *) let pp_type_unit_header (x:type_unit_header) : string= (pp_unit_header "Type" x.tuh_cuh ^ (" Type Signature: " ^ (pphex x.tuh_type_signature ^ ("\n" ^ (" Type Offset: " ^ (pphex x.tuh_type_offset ^ "\n")))))) let parse_type_unit_header c : type_unit_header parser= (pr_post_map (parse_dependent_pair (parse_compilation_unit_header c) (fun cuh -> parse_pair (parse_uint64 c) (* type signature *) (parse_uintDwarfN c cuh.cuh_dwarf_format) (* type offset *) )) (fun (cuh, (ts, to')) -> { tuh_cuh = cuh; tuh_type_signature = ts; tuh_type_offset = to'; })) (** debugging information entries: pp and parsing *) (* example pp from readelf <2><51>: Abbrev Number: 3 (DW_TAG_variable) <52> DW_AT_name : x <54> DW_AT_decl_file : 1 <55> DW_AT_decl_line : 2 <56> DW_AT_type : <0x6a> <5a> DW_AT_location : 2 byte block: 91 6c (DW_OP_fbreg: -20) *) (** debugging information entries: pp and parsing *) let indent_level (indent: bool) (level: Nat_big_num.num):string= (if indent then (Xstring.implode (replicate0 ( Nat_big_num.mul( (Nat_big_num.of_int 3)) level) ' ')) else " ") let indent_level_plus_one indent level:string= (if indent then indent_level indent (Nat_big_num.add level( (Nat_big_num.of_int 1))) else " "^" ") let pp_die_attribute c (cuh:compilation_unit_header) (str : byte_sequence0) (indent:bool) (level: Nat_big_num.num) (((at: Nat_big_num.num), (af: Nat_big_num.num)), ((pos: Nat_big_num.num),(av:attribute_value))) : string= (indent_level_plus_one indent level ^ (pp_pos pos ^ (" " ^ (right_space_padded_to( (Nat_big_num.of_int 18)) (pp_attribute_encoding at) ^ (": " ^ (if indent then "(" ^ (pp_attribute_form_encoding af ^ (") " ^ (pp_attribute_value c cuh str at av ^ "\n"))) else pp_attribute_value_like_objdump c cuh str at av ^ "\n")))))) (*val pp_die : p_context -> compilation_unit_header -> byte_sequence -> bool -> natural -> bool -> die -> string*) let rec pp_die c cuh str indent level (pp_children:bool) die1:string= (indent_level indent level ^ ("<" ^ (Nat_big_num.to_string level ^ (">" ^ (pp_pos die1.die_offset ^ (": Abbrev Number: " ^ (Nat_big_num.to_string die1.die_abbreviation_code ^ (" (" ^ (pp_tag_encoding die1.die_abbreviation_declaration.ad_tag ^(")\n" ^ (let ats = (Lem_list.list_combine die1.die_abbreviation_declaration.ad_attribute_specifications die1.die_attribute_values) in (String.concat "" (Lem_list.map (pp_die_attribute c cuh str indent level) ats)) ^ (if pp_children then String.concat "" (Lem_list.map (pp_die c cuh str indent ( Nat_big_num.add level( (Nat_big_num.of_int 1))) pp_children) die1.die_children) else "")))))))))))) (*val pp_die_abbrev : p_context -> compilation_unit_header -> byte_sequence -> natural -> bool -> (list die) -> die -> string*) let rec pp_die_abbrev c cuh str level (pp_children:bool) parents die1:string= (indent_level true level ^ (pp_tag_encoding die1.die_abbreviation_declaration.ad_tag ^ (" (" ^ (pp_pos die1.die_offset ^ (") " (* ^ ": Abbrev Number: " ^ show die.die_abbreviation_code *) ^ (((match find_name_of_die str die1 with Some s -> s | None -> "-" )) ^ (" : " ^ (String.concat " : " (Lem_list.map (fun die' -> pp_tag_encoding die'.die_abbreviation_declaration.ad_tag) parents) ^ ("\n" ^ ( (*(String.concat "" (List.map (pp_die_abbrev_attribute c cuh str) ats))*)if pp_children then String.concat "" (Lem_list.map (pp_die_abbrev c cuh str ( Nat_big_num.add level( (Nat_big_num.of_int 1))) pp_children (die1::parents)) die1.die_children) else "")))))))))) (* condensed pp for variables *) (*val pp_die_abbrev_var : p_context -> dwarf -> compilation_unit -> byte_sequence -> bool -> (list die) -> die -> (string (*name*) * string (*offset*) * string (*kind*))*) let rec pp_die_abbrev_var c d cu str (pp_children:bool) parents die1:string*string*string= (* (indent_level true level*) (* ^ pp_tag_encoding die.die_abbreviation_declaration.ad_tag*) (* ^ ": Abbrev Number: " ^ show die.die_abbreviation_code *) (((match find_name_of_die_using_abstract_origin c d cu str die1 with | Some s -> s | None -> "?" )) , pp_pos die1.die_offset, (if Nat_big_num.equal die1.die_abbreviation_declaration.ad_tag (tag_encode "DW_TAG_variable") then "var" else if Nat_big_num.equal die1.die_abbreviation_declaration.ad_tag (tag_encode "DW_TAG_formal_parameter") then "param" else "other") ) (* condensed pp for variable parents *) (*val pp_die_abbrev_var_parent : p_context -> dwarf -> compilation_unit -> byte_sequence -> die -> string*) let pp_die_abbrev_var_parent c d cu str die1:string= ( (* (indent_level true level*) (* ^ pp_tag_encoding die.die_abbreviation_declaration.ad_tag*) (* ^ ": Abbrev Number: " ^ show die.die_abbreviation_code *)let name1 = ((match find_name_of_die_using_abstract_origin c d cu str die1 with Some s -> s | None -> "" )) in let offset = (pp_pos die1.die_offset) in (if Nat_big_num.equal die1.die_abbreviation_declaration.ad_tag (tag_encode "DW_TAG_compile_unit") then name1 else if Nat_big_num.equal die1.die_abbreviation_declaration.ad_tag (tag_encode "DW_TAG_subprogram") then name1 (*"subprogram"*) else if Nat_big_num.equal die1.die_abbreviation_declaration.ad_tag (tag_encode "DW_TAG_inlined_subroutine") then name1 ^ "(inlined)" else if Nat_big_num.equal die1.die_abbreviation_declaration.ad_tag (tag_encode "DW_TAG_lexical_block") then "block" else name1 ^ ("(" ^ (pp_tag_encoding die1.die_abbreviation_declaration.ad_tag ^ ")")))) (*val pp_die_abbrev_var_parents : p_context -> dwarf -> compilation_unit -> byte_sequence -> list die -> string*) let pp_die_abbrev_var_parents c d cu str parents:string= (String.concat ":" (Lem_list.map (fun die1 -> pp_die_abbrev_var_parent c d cu str die1) parents)) (* ^ " : " ^ String.concat " : " (List.map (fun die' -> pp_tag_encoding die'.die_abbreviation_declaration.ad_tag) parents)*) (* ^ "\n"*) (* ^ (*(String.concat "" (List.map (pp_die_abbrev_attribute c cuh str) ats))*)*) (* if pp_children then String.concat "" (List.map (pp_die_abbrev c cuh str (level +1) pp_children (die::parents)) die.die_children) else ""*) (*val parse_die : p_context -> byte_sequence -> compilation_unit_header -> (natural->abbreviation_declaration) -> parser (maybe die)*) let rec parse_die c str cuh find_abbreviation_declaration:parse_context ->((die)option)parse_result= (fun (pc: parse_context) -> (* let _ = my_debug3 ("parse_die called at " ^ pp_parse_context pc ^ "\n") in *) pr_bind (parse_ULEB128 pc) (fun abbreviation_code pc' -> if Nat_big_num.equal abbreviation_code( (Nat_big_num.of_int 0)) then PR_success( None, pc') else (* let _ = my_debug3 ("parse_die abbreviation code "^pphex abbreviation_code ^"\n") in *) let ad = (find_abbreviation_declaration abbreviation_code) in let attribute_value_parsers = (Lem_list.map (fun (at,af) -> pr_with_pos (parser_of_attribute_form c cuh af)) ad.ad_attribute_specifications) in pr_bind (parse_parser_list attribute_value_parsers pc') (fun avs pc'' -> (* let die_header = <| die_offset = pc.pc_offset; die_abbreviation_code = abbreviation_code; die_abbreviation_declaration = ad; die_attribute_values = avs; die_children = []; |> in let _ = my_debug3 ("die_header " ^ pp_die cuh str true 999 die_header) in *) pr_bind (if ad.ad_has_children then parse_list (parse_die c str cuh find_abbreviation_declaration) pc'' else pr_return [] pc'') (fun dies pc''' -> PR_success( (Some ( let die1 = ({ die_offset = (pc.pc_offset); die_abbreviation_code = abbreviation_code; die_abbreviation_declaration = ad; die_attribute_values = avs; die_children = dies; }) in let _ = (my_debug3 ("die entire " ^ pp_die c cuh str true( (Nat_big_num.of_int 0)) false die1)) in die1)), pc'''))))) let has_attribute (an: string) (die1: die) : bool= (Lem_list.elem instance_Basic_classes_Eq_Num_natural_dict (attribute_encode an) (Lem_list.map fst die1.die_abbreviation_declaration.ad_attribute_specifications)) (** compilation units: pp and parsing *) let pp_compilation_unit c (indent:bool) (debug_str_section_body: byte_sequence0) cu:string= ("" (* "*** compilation unit header ***\n"*) ^ (pp_compilation_unit_header cu.cu_header ^ ("\n*** compilation unit abbreviation table\n" ^ (pp_abbreviations_table cu.cu_abbreviations_table ^ ("\n" ^ ("*** compilation unit die tree\n" ^ (pp_die c cu.cu_header debug_str_section_body indent( (Nat_big_num.of_int 0)) true cu.cu_die ^ "\n"))))))) let pp_compilation_units c (indent:bool) debug_string_section_body (compilation_units1: compilation_unit list) : string= (String.concat "" (Lem_list.map (pp_compilation_unit c indent debug_string_section_body) compilation_units1)) let pp_compilation_unit_abbrev c (debug_str_section_body: byte_sequence0) cu:string= (pp_compilation_unit_header cu.cu_header (* ^ pp_abbreviations_table cu.cu_abbreviations_table*) ^ pp_die_abbrev c cu.cu_header debug_str_section_body( (Nat_big_num.of_int 0)) true [] cu.cu_die) let pp_compilation_units_abbrev c debug_string_section_body (compilation_units1: compilation_unit list) : string= (String.concat "" (Lem_list.map (pp_compilation_unit_abbrev c debug_string_section_body) compilation_units1)) (*val add_die_to_index : die_index -> list die -> die -> die_index*) let rec add_die_to_index acc parents die1:((Nat_big_num.num),((die)list*die))Pmap.map= (let nacc : die_index = (Pmap.add die1.die_offset (parents,die1) acc) in List.fold_left (fun acc ndie -> add_die_to_index acc (die1::parents) ndie) nacc die1.die_children) let parse_compilation_unit c (debug_str_section_body: byte_sequence0) (debug_abbrev_section_body: byte_sequence0) : ( compilation_unit option) parser= (fun (pc:parse_context) -> if Nat_big_num.equal (Byte_sequence.length0 pc.pc_bytes)( (Nat_big_num.of_int 0)) then PR_success( None, pc) else let (cuh, pc') = ((match parse_compilation_unit_header c pc with | PR_fail( s, pc') -> failwith ("parse_cuh_header fail: " ^ pp_parse_fail s pc') | PR_success( cuh, pc') -> (cuh,pc') )) in (*let _ = my_debug4 (pp_compilation_unit_header cuh) in*) if Nat_big_num.equal cuh.cuh_unit_length( (Nat_big_num.of_int 0)) then PR_success( None, pc') else let pc_abbrev = ({pc_bytes = ((match dropbytes cuh.cuh_debug_abbrev_offset debug_abbrev_section_body with Success bs -> bs | Fail _ -> failwith "mydrop of debug_abbrev" )); pc_offset = (cuh.cuh_debug_abbrev_offset) }) in (* todo: this is reparsing the abbreviations table for each cu *) let abbreviations_table1 = ((match parse_abbreviations_table c pc_abbrev with | PR_fail( s, pc_abbrev') -> failwith ("parse_abbrevations_table fail: " ^ pp_parse_fail s pc_abbrev') | PR_success( at, pc_abbrev') -> { at_offset=(pc_abbrev.pc_offset); at_table= at} )) in (* let _ = my_debug4 (pp_abbreviations_table abbreviations_table) in *) let find_abbreviation_declaration (ac:Nat_big_num.num) : abbreviation_declaration= ( (* let _ = my_debug4 ("find_abbreviation_declaration "^pphex ac) in *)myfindNonPure (fun ad -> Nat_big_num.equal ad.ad_abbreviation_code ac) abbreviations_table1.at_table) in (* let _ = my_debug3 (pp_abbreviations_table abbreviations_table) in *) (match parse_die c debug_str_section_body cuh find_abbreviation_declaration pc' with | PR_fail( s, pc'') -> failwith ("parse_die fail: " ^ pp_parse_fail s pc'') | PR_success( (None), pc'') -> failwith ("parse_die returned Nothing: " ^ pp_parse_context pc'') | PR_success( (Some die1), pc'') -> let cu = ({ cu_header = cuh; cu_abbreviations_table = abbreviations_table1; cu_die = die1; cu_index = (add_die_to_index (Pmap.empty Nat_big_num.compare) [] die1) }) in PR_success( (Some cu), pc'') )) let parse_compilation_units c (debug_str_section_body: byte_sequence0) (debug_abbrev_section_body: byte_sequence0): ( compilation_unit list) parser= (parse_list (parse_compilation_unit c debug_str_section_body debug_abbrev_section_body)) (** type units: pp and parsing *) let pp_type_unit c (debug_str_section_body: byte_sequence0) tu:string= (pp_type_unit_header tu.tu_header ^ (pp_abbreviations_table tu.tu_abbreviations_table ^ pp_die c tu.tu_header.tuh_cuh debug_str_section_body true( (Nat_big_num.of_int 0)) true tu.tu_die)) let pp_type_units c debug_string_section_body (type_units1: type_unit list) : string= (String.concat "" (Lem_list.map (pp_type_unit c debug_string_section_body) type_units1)) let parse_type_unit c (debug_str_section_body: byte_sequence0) (debug_abbrev_section_body: byte_sequence0) : ( type_unit option) parser= (fun (pc:parse_context) -> if Nat_big_num.equal (Byte_sequence.length0 pc.pc_bytes)( (Nat_big_num.of_int 0)) then PR_success( None, pc) else let (tuh, pc') = ((match parse_type_unit_header c pc with | PR_fail( s, pc') -> failwith ("parse_tuh_header fail: " ^ pp_parse_fail s pc') | PR_success( tuh, pc') -> (tuh,pc') )) in (* let _ = my_debug4 (pp_type_unit_header tuh) in *) let pc_abbrev = (let n = (tuh.tuh_cuh.cuh_debug_abbrev_offset) in {pc_bytes = ((match dropbytes n debug_abbrev_section_body with Success bs -> bs | Fail _ -> failwith "mydrop of debug_abbrev" )); pc_offset = n }) in let abbreviations_table1 = ((match parse_abbreviations_table c pc_abbrev with | PR_fail( s, pc_abbrev') -> failwith ("parse_abbrevations_table fail: " ^ pp_parse_fail s pc_abbrev') | PR_success( at, pc_abbrev') -> { at_offset=(pc_abbrev.pc_offset); at_table= at} )) in (* let _ = my_debug4 (pp_abbreviations_table abbreviations_table) in *) let find_abbreviation_declaration (ac:Nat_big_num.num) : abbreviation_declaration= ( (* let _ = my_debug4 ("find_abbreviation_declaration "^pphex ac) in *)myfindNonPure (fun ad -> Nat_big_num.equal ad.ad_abbreviation_code ac) abbreviations_table1.at_table) in (* let _ = my_debug3 (pp_abbreviations_table abbreviations_table) in *) (match parse_die c debug_str_section_body tuh.tuh_cuh find_abbreviation_declaration pc' with | PR_fail( s, pc'') -> failwith ("parse_die fail: " ^ pp_parse_fail s pc'') | PR_success( (None), pc'') -> failwith ("parse_die returned Nothing: " ^ pp_parse_context pc'') | PR_success( (Some die1), pc'') -> let tu = ({ tu_header = tuh; tu_abbreviations_table = abbreviations_table1; tu_die = die1; }) in PR_success( (Some tu), pc'') )) let parse_type_units c (debug_str_section_body: byte_sequence0) (debug_abbrev_section_body: byte_sequence0): ( type_unit list) parser= (parse_list (parse_type_unit c debug_str_section_body debug_abbrev_section_body)) (** location lists, pp and parsing *) (* readelf example Contents of the .debug_loc section: Offset Begin End Expression 00000000 0000000000400168 0000000000400174 (DW_OP_reg0 (r0)) 00000000 0000000000400174 0000000000400184 (DW_OP_GNU_entry_value: (DW_OP_reg0 (r0)); DW_OP_stack_value) 00000000 <End of list> 00000039 000000000040017c 0000000000400180 (DW_OP_lit1; DW_OP_stack_value) *) let pp_location_list_entry c (cuh:compilation_unit_header) (offset:Nat_big_num.num) (x:location_list_entry) : string= (" " ^ (pphex offset ^ (" " ^ (pphex x.lle_beginning_address_offset ^ (" " ^ (pphex x.lle_ending_address_offset ^ (" (" ^ (parse_and_pp_operations c cuh x.lle_single_location_description ^(")" ^ "\n"))))))))) let pp_base_address_selection_entry c (cuh:compilation_unit_header) (offset:Nat_big_num.num) (x:base_address_selection_entry) : string= (" " ^ (pphex offset ^ (" " ^ (pphex x.base_address ^ "\n")))) let pp_location_list_item c (cuh: compilation_unit_header) (offset: Nat_big_num.num) (x:location_list_item):string= ((match x with | LLI_lle lle -> pp_location_list_entry c cuh offset lle | LLI_base base -> pp_base_address_selection_entry c cuh offset base )) let pp_location_list c (cuh: compilation_unit_header) ((offset:Nat_big_num.num), (llis: location_list_item list)):string= (String.concat "" (Lem_list.map (pp_location_list_item c cuh offset) llis)) (* ^ " " ^ pphex offset ^ " <End of list>\n"*) let pp_loc c (cuh: compilation_unit_header) (lls: location_list list):string= (" Offset Begin End Expression\n" ^ String.concat "" (Lem_list.map (pp_location_list c cuh) lls)) (* Note that this is just pp'ing the raw location list data - Section 3.1.1 says: The applicable base address of a location list entry is determined by the closest preceding base address selection entry in the same location list. If there is no such selection entry, then the applicable base address defaults to the base address of the compilation unit. That is handled by the interpret_location_list below *) let parse_location_list_item c (cuh: compilation_unit_header) : ( location_list_item option) parser= (fun (pc:parse_context) -> pr_bind (parse_pair (parse_uint_address_size c cuh.cuh_address_size) (parse_uint_address_size c cuh.cuh_address_size) pc) (fun ((a1: Nat_big_num.num),(a2:Nat_big_num.num)) pc' -> (* let _ = my_debug4 ("offset="^pphex pc.pc_offset ^ " begin=" ^ pphex a1 ^ " end=" ^ pphex a2) in *) if Nat_big_num.equal a1( (Nat_big_num.of_int 0)) &&Nat_big_num.equal a2( (Nat_big_num.of_int 0)) then PR_success( None, pc') else if Nat_big_num.equal a1 (max_address cuh.cuh_address_size) then let x = (LLI_base { (*base_offset=pc.pc_offset;*) base_address=a1 }) in PR_success( (Some x (*(pc.pc_offset, x)*)), pc') else pr_bind (parse_uint16 c pc') (fun n pc'' -> pr_post_map1 (parse_n_bytes n pc'') (fun bs -> let x = (LLI_lle { (*lle_offset = pc.pc_offset;*) lle_beginning_address_offset = a1; lle_ending_address_offset = a2; lle_single_location_description = bs; }) in Some x (*(pc.pc_offset, x)*)) ) )) let parse_location_list c cuh : ( location_list option) parser= (fun (pc: parse_context) -> if Nat_big_num.equal (Byte_sequence.length0 pc.pc_bytes)( (Nat_big_num.of_int 0)) then PR_success( None, pc) else pr_post_map1 (parse_list (parse_location_list_item c cuh) pc) (fun llis -> (Some (pc.pc_offset, llis)))) let parse_location_list_list c cuh : location_list_list parser= (parse_list (parse_location_list c cuh)) let find_location_list dloc n : location_list= (myfindNonPure (fun (n',_)->Nat_big_num.equal n' n) dloc) (* fails if location list not found *) (* interpretation of a location list applies the base_address and LLI_base offsets to give a list indexed by concrete address ranges *) let rec interpret_location_list (base_address1: Nat_big_num.num) (llis: location_list_item list) : (Nat_big_num.num * Nat_big_num.num * single_location_description) list= ((match llis with | [] -> [] | LLI_base base::llis' -> interpret_location_list base.base_address llis' | LLI_lle lle :: llis' -> (Nat_big_num.add base_address1 lle.lle_beginning_address_offset,Nat_big_num.add base_address1 lle.lle_ending_address_offset, lle.lle_single_location_description) :: interpret_location_list base_address1 llis' )) (** range lists, pp and parsing *) (* example output from: aarch64-linux-gnu-objdump --dwarf=Ranges Contents of the .debug_ranges section: Offset Begin End 00000000 00000000004000fc 0000000000400114 00000000 000000000040011c 0000000000400128 00000000 <End of list> ... 00000380 0000000000400598 000000000040059c 00000380 00000000004005a0 00000000004005a4 00000380 00000000004005b4 00000000004005b8 00000380 00000000004005bc 00000000004005bc (start == end) 00000380 00000000004005c0 00000000004005c4 00000380 <End of list> *) let pp_range_list_entry c (cuh:compilation_unit_header) (offset:Nat_big_num.num) (x:range_list_entry) : string= (" " ^ (pphex offset ^ (" " ^ (pphex x.rle_beginning_address_offset ^ (" " ^ (pphex x.rle_ending_address_offset ^ ((if Nat_big_num.equal x.rle_beginning_address_offset x.rle_ending_address_offset then " (start == end)" else "") ^ "\n"))))))) let pp_range_list_item c (cuh: compilation_unit_header) (offset: Nat_big_num.num) (x:range_list_item):string= ((match x with | RLI_rle rle -> pp_range_list_entry c cuh offset rle | RLI_base base -> pp_base_address_selection_entry c cuh offset base )) let pp_range_list c (cuh: compilation_unit_header) ((offset:Nat_big_num.num), (rlis: range_list_item list)):string= (String.concat "" (Lem_list.map (pp_range_list_item c cuh offset) rlis) ^ (" " ^ (pphex offset ^ " <End of list>\n"))) let pp_ranges c (cuh: compilation_unit_header) (rls: range_list list):string= (" Offset Begin End\n" ^ String.concat "" (Lem_list.map (pp_range_list c cuh) rls)) (* Note that this is just pp'ing the raw range list data - see also the interpret_range_list below *) let parse_range_list_item c (cuh: compilation_unit_header) : ( range_list_item option) parser= (fun (pc:parse_context) -> pr_bind (parse_pair (parse_uint_address_size c cuh.cuh_address_size) (parse_uint_address_size c cuh.cuh_address_size) pc) (fun ((a1: Nat_big_num.num),(a2:Nat_big_num.num)) pc' -> (* let _ = my_debug4 ("offset="^pphex pc.pc_offset ^ " begin=" ^ pphex a1 ^ " end=" ^ pphex a2) in *) if Nat_big_num.equal a1( (Nat_big_num.of_int 0)) &&Nat_big_num.equal a2( (Nat_big_num.of_int 0)) then PR_success( None, pc') else if Nat_big_num.equal a1 (max_address cuh.cuh_address_size) then let x = (RLI_base { base_address=a2 }) in PR_success( (Some x), pc') else let x = (RLI_rle { rle_beginning_address_offset = a1; rle_ending_address_offset = a2; }) in PR_success( (Some x (*(pc.pc_offset, x)*)), pc') )) (* compiler output includes DW_AT_ranges attributes that point to proper suffixes of range lists. We support that by explicitly including each suffix - though one could be more efficient *) let rec expand_range_list_suffixes cuh (offset,(rlis: range_list_item list)) : range_list list= ((match rlis with | [] -> [] | [rli] -> [(offset,rlis)] | rli::rlis' -> (offset,rlis) :: expand_range_list_suffixes cuh (( Nat_big_num.add offset(Nat_big_num.mul( (Nat_big_num.of_int 2))cuh.cuh_address_size)),rlis') )) let parse_range_list c cuh : ( ( range_list list)option) parser= (fun (pc: parse_context) -> if Nat_big_num.equal (Byte_sequence.length0 pc.pc_bytes)( (Nat_big_num.of_int 0)) then PR_success( None, pc) else pr_post_map1 (parse_list (parse_range_list_item c cuh) pc) (fun rlis -> (Some (expand_range_list_suffixes cuh (pc.pc_offset, rlis))))) let parse_range_list_list c cuh : range_list_list parser= (pr_map2 List.concat (parse_list (parse_range_list c cuh))) let find_range_list dranges n : range_list option= (Lem_list.list_find_opt (fun (n',_)->Nat_big_num.equal n' n) dranges) (* fails if range list not found *) (* interpretation of a range list applies the base_address and RLI_base offsets to give a list of concrete address ranges *) let rec interpret_range_list (base_address1: Nat_big_num.num) (rlis: range_list_item list) : (Nat_big_num.num * Nat_big_num.num) list= ((match rlis with | [] -> [] | RLI_base base::rlis' -> interpret_range_list base.base_address rlis' | RLI_rle rle :: rlis' -> (Nat_big_num.add base_address1 rle.rle_beginning_address_offset,Nat_big_num.add base_address1 rle.rle_ending_address_offset) :: interpret_range_list base_address1 rlis' )) (** frame information, pp and parsing *) (* readelf example Contents of the .debug_frame section: 00000000 0000000c ffffffff CIE Version: 1 Augmentation: "" Code alignment factor: 4 Data alignment factor: -8 Return address column: 65 DW_CFA_def_cfa: r1 ofs 0 00000010 00000024 00000000 FDE cie=00000000 pc=100000b0..10000120 DW_CFA_advance_loc: 8 to 100000b8 DW_CFA_def_cfa_offset: 80 DW_CFA_offset: r31 at cfa-8 DW_CFA_advance_loc: 4 to 100000bc DW_CFA_def_cfa_register: r31 DW_CFA_advance_loc: 80 to 1000010c DW_CFA_def_cfa: r1 ofs 0 DW_CFA_nop DW_CFA_nop DW_CFA_nop DW_CFA_nop 00000038 00000024 00000000 FDE cie=00000000 pc=10000120..100001a4 DW_CFA_advance_loc: 16 to 10000130 DW_CFA_def_cfa_offset: 144 DW_CFA_offset_extended_sf: r65 at cfa+16 DW_CFA_offset: r31 at cfa-8 DW_CFA_advance_loc: 4 to 10000134 DW_CFA_def_cfa_register: r31 DW_CFA_advance_loc: 84 to 10000188 DW_CFA_def_cfa: r1 ofs 0 *) let pp_cfa_address a:string= (pphex a) let pp_cfa_block b:string= (ppbytes b) let pp_cfa_delta d:string= (pphex d) (*let pp_cfa_offset n = pphex n let pp_cfa_register r = show r*) let pp_cfa_sfoffset dict_Show_Show_a i:string= ( dict_Show_Show_a.show_method i) let pp_cfa_register dict_Show_Show_a r:string= ("r"^ dict_Show_Show_a.show_method r) (*TODO: arch-specific register names *) let pp_cfa_offset (i:Nat_big_num.num):string= (if Nat_big_num.equal i( (Nat_big_num.of_int 0)) then "" else if Nat_big_num.less i( (Nat_big_num.of_int 0)) then Nat_big_num.to_string i else "+" ^ Nat_big_num.to_string i) let pp_cfa_rule (cr:cfa_rule) : string= ((match cr with | CR_undefined -> "u" | CR_register( r, i) -> pp_cfa_register instance_Show_Show_Num_natural_dict r ^ pp_cfa_offset i | CR_expression bs -> "exp" )) let pp_register_rule (rr:register_rule) : string= ( (*TODO make this more readelf-like *)(match rr with | RR_undefined -> "u" | RR_same_value -> "s" | RR_offset i -> "c" ^ pp_cfa_offset i | RR_val_offset i -> "val(c" ^ (pp_cfa_offset i ^ ")") | RR_register r -> pp_cfa_register instance_Show_Show_Num_natural_dict r | RR_expression bs -> "exp" | RR_val_expression bs -> "val(exp)" | RR_architectural -> "" )) let pp_call_frame_instruction i:string= ((match i with | DW_CFA_advance_loc d -> "DW_CFA_advance_loc" ^ (" " ^ pp_cfa_delta d) | DW_CFA_offset( r, n) -> "DW_CFA_offset" ^ (" " ^ (pp_cfa_register instance_Show_Show_Num_natural_dict r ^ (" " ^ pp_cfa_offset ( n)))) | DW_CFA_restore r -> "DW_CFA_restore" ^ (" " ^ pp_cfa_register instance_Show_Show_Num_natural_dict r) | DW_CFA_nop -> "DW_CFA_nop" | DW_CFA_set_loc a -> "DW_CFA_set_loc" ^ (" " ^ pp_cfa_address a) | DW_CFA_advance_loc1 d -> "DW_CFA_advance_loc1" ^ (" " ^ pp_cfa_delta d) | DW_CFA_advance_loc2 d -> "DW_CFA_advance_loc2" ^ (" " ^ pp_cfa_delta d) | DW_CFA_advance_loc4 d -> "DW_CFA_advance_loc4" ^ (" " ^ pp_cfa_delta d) | DW_CFA_offset_extended( r, n) -> "DW_CFA_offset_extended" ^ (" " ^ (pp_cfa_register instance_Show_Show_Num_natural_dict r ^ (" " ^ pp_cfa_offset ( n)))) | DW_CFA_restore_extended r -> "DW_CFA_restore_extended" ^ (" " ^ pp_cfa_register instance_Show_Show_Num_natural_dict r) | DW_CFA_undefined r -> "DW_CFA_undefined" ^ (" " ^ pp_cfa_register instance_Show_Show_Num_natural_dict r) | DW_CFA_same_value r -> "DW_CFA_same_value" ^ (" " ^ pp_cfa_register instance_Show_Show_Num_natural_dict r) | DW_CFA_register( r1, r2) -> "DW_CFA_register" ^ (" " ^ (pp_cfa_register instance_Show_Show_Num_natural_dict r1 ^ (" " ^ pp_cfa_register instance_Show_Show_Num_natural_dict r2))) | DW_CFA_remember_state -> "DW_CFA_remember_state" | DW_CFA_restore_state -> "DW_CFA_restore_state" | DW_CFA_def_cfa( r, n) -> "DW_CFA_def_cfa" ^ (" " ^ (pp_cfa_register instance_Show_Show_Num_natural_dict r ^ (" " ^ pp_cfa_offset ( n)))) | DW_CFA_def_cfa_register r -> "DW_CFA_def_cfa_register" ^ (" " ^ pp_cfa_register instance_Show_Show_Num_natural_dict r) | DW_CFA_def_cfa_offset n -> "DW_CFA_def_cfa_offset" ^ (" " ^ pp_cfa_offset ( n)) | DW_CFA_def_cfa_expression b -> "DW_CFA_def_cfa_expression" ^ (" " ^ pp_cfa_block b) | DW_CFA_expression( r, b) -> "DW_CFA_expression" ^ (" " ^ (pp_cfa_register instance_Show_Show_Num_natural_dict r ^ (" " ^ pp_cfa_block b))) | DW_CFA_offset_extended_sf( r, i) -> "DW_CFA_offset_extended_sf" ^ (" " ^ (pp_cfa_register instance_Show_Show_Num_natural_dict r ^ (" " ^ pp_cfa_sfoffset instance_Show_Show_Num_integer_dict i))) | DW_CFA_def_cfa_sf( r, i) -> "DW_CFA_def_cfa_sf" ^ (" " ^ (pp_cfa_register instance_Show_Show_Num_natural_dict r ^ (" " ^ pp_cfa_sfoffset instance_Show_Show_Num_integer_dict i))) | DW_CFA_def_cfa_offset_sf i -> "DW_CFA_def_cfa_offset_sf" ^ (" " ^ pp_cfa_sfoffset instance_Show_Show_Num_integer_dict i) | DW_CFA_val_offset( r, n) -> "DW_CFA_val_offset" ^ (" " ^ (pp_cfa_register instance_Show_Show_Num_natural_dict r ^ (" " ^ pp_cfa_offset ( n)))) | DW_CFA_val_offset_sf( r, i) -> "DW_CFA_val_offset_sf" ^ (pp_cfa_register instance_Show_Show_Num_natural_dict r ^ (" " ^ pp_cfa_sfoffset instance_Show_Show_Num_integer_dict i)) | DW_CFA_val_expression( r, b) -> "DW_CFA_val_expression" ^ (" " ^ (pp_cfa_register instance_Show_Show_Num_natural_dict r ^ (" " ^ pp_cfa_block b))) | DW_CFA_AARCH64_negate_ra_state -> "DW_CFA_AARCH64_negate_ra_state" | DW_CFA_unknown bt -> "DW_CFA_unknown" ^ (" " ^ hex_string_of_byte bt) )) let pp_call_frame_instructions is:string= (String.concat "" (Lem_list.map (fun i -> " " ^ (pp_call_frame_instruction i ^ "\n")) is)) let parser_of_call_frame_argument_type c cuh (cfat: call_frame_argument_type) : call_frame_argument_value parser= ((match cfat with | CFAT_address -> pr_map2 (fun n -> CFAV_address n) (parse_uint_address_size c cuh.cuh_address_size) | CFAT_delta1 -> pr_map2 (fun n -> CFAV_delta n) (parse_uint8) | CFAT_delta2 -> pr_map2 (fun n -> CFAV_delta n) (parse_uint16 c) | CFAT_delta4 -> pr_map2 (fun n -> CFAV_delta n) (parse_uint32 c) | CFAT_delta_ULEB128 -> pr_map2 (fun n -> CFAV_delta n) (parse_ULEB128) | CFAT_offset -> pr_map2 (fun n -> CFAV_offset n) (parse_ULEB128) | CFAT_sfoffset -> pr_map2 (fun n -> CFAV_sfoffset n) (parse_SLEB128) | CFAT_register -> pr_map2 (fun n -> CFAV_register n) (parse_ULEB128) | CFAT_block -> (fun pc -> pr_bind (parse_ULEB128 pc) (fun n pc' -> pr_map (fun bs -> CFAV_block bs) (parse_n_bytes n pc'))) )) let parse_call_frame_instruction c cuh : ( call_frame_instruction option) parser= (fun pc -> (match read_char pc.pc_bytes with | Fail _ -> PR_success( None, pc) | Success (b,bs') -> let pc' = ({ pc_bytes = bs'; pc_offset = (Nat_big_num.add pc.pc_offset( (Nat_big_num.of_int 1))) }) in let ch = (Uint32_wrapper.of_int (Char.code b)) in let high_bits = (Uint32_wrapper.logand ch (Uint32_wrapper.of_bigint( (Nat_big_num.of_int 192)))) in let low_bits = (Uint32_wrapper.to_bigint (Uint32_wrapper.logand ch (Uint32_wrapper.of_bigint( (Nat_big_num.of_int 63))))) in if high_bits = Uint32_wrapper.of_bigint( (Nat_big_num.of_int 0)) then (match lookup_abCde_de instance_Basic_classes_Eq_Num_natural_dict low_bits call_frame_instruction_encoding with | Some ((args: call_frame_argument_type list), result) -> let ps = (Lem_list.map (parser_of_call_frame_argument_type c cuh) args) in let p = (pr_post_map (parse_parser_list ps) result) in (match p pc' with | PR_success( (Some cfi), pc'') -> PR_success( (Some cfi), pc'') | PR_success( (None), pc'') -> failwith "bad call frame instruction argument 1" | PR_fail( s, pc'') -> failwith "bad call frame instruction argument 2" ) | None -> (*Assert_extra.failwith ("can't parse " ^ show b ^ " as call frame instruction")*) PR_success( (Some (DW_CFA_unknown b)), pc') ) else if high_bits = Uint32_wrapper.of_bigint( (Nat_big_num.of_int 64)) then PR_success( (Some (DW_CFA_advance_loc low_bits)), pc') else if high_bits = Uint32_wrapper.of_bigint( (Nat_big_num.of_int 192)) then PR_success( (Some (DW_CFA_restore low_bits)), pc') else let p = (parser_of_call_frame_argument_type c cuh CFAT_offset) in (match p pc' with | PR_success( (CFAV_offset n), pc'') -> PR_success( (Some (DW_CFA_offset( low_bits, n))), pc'') | PR_success( _, pc'') -> failwith "bad call frame instruction argument 3" | PR_fail( s, pc'') -> failwith "bad call frame instruction argument 4" ) )) let parse_call_frame_instructions c cuh : ( call_frame_instruction list) parser= (parse_list (parse_call_frame_instruction c cuh)) (*val parse_and_pp_call_frame_instructions : p_context -> compilation_unit_header -> byte_sequence -> string*) let parse_and_pp_call_frame_instructions c cuh bs:string= (let pc = ({pc_bytes = bs; pc_offset =( (Nat_big_num.of_int 0)) }) in (match parse_call_frame_instructions c cuh pc with | PR_fail( s, pc') -> "parse_call_frame_instructions fail: " ^ pp_parse_fail s pc' | PR_success( is, pc') -> pp_call_frame_instructions is ^ (if not (Nat_big_num.equal (Byte_sequence.length0 pc'.pc_bytes)( (Nat_big_num.of_int 0))) then " Warning: extra non-parsed bytes" else "") )) let pp_call_frame_instructions' c cuh bs:string= ( (* ppbytes bs ^ "\n" *)parse_and_pp_call_frame_instructions c cuh bs) let pp_cie c cuh cie1:string= (pphex cie1.cie_offset ^ (" " ^ (pphex cie1.cie_length ^ (" " ^ (pphex cie1.cie_id ^ (" CIE\n" ^ (" Version: " ^ (Nat_big_num.to_string cie1.cie_version ^ ("\n" ^ (" Augmentation: \""^ (string_of_string (string_of_byte_sequence cie1.cie_augmentation) ^ ("\"\n" ^ (" Code alignment factor: " ^ (Nat_big_num.to_string cie1.cie_code_alignment_factor ^ ("\n" ^ (" Data alignment factor: " ^ (Nat_big_num.to_string cie1.cie_data_alignment_factor ^ ("\n" ^ (" Return address column: " ^ (Nat_big_num.to_string cie1.cie_return_address_register ^ ("\n" ^ ("\n" ^ (ppbytes cie1.cie_initial_instructions_bytes ^ ("\n" ^ pp_call_frame_instructions cie1.cie_initial_instructions)))))))))))))))))))))))) (* cie_address_size: natural; (* not shown by readelf - must match compilation unit *)*) (* cie_segment_size: natural; (* not shown by readelf *)*) (* readelf says "Return address column", but the DWARF spec says "Return address register" *) let pp_fde c cuh fde1:string= (pphex fde1.fde_offset ^ (" " ^ (pphex fde1.fde_length ^ (" " ^ (pphex fde1.fde_cie_pointer (* not what this field of readelf output is *) ^ (" FDE" ^ (" cie=" ^ (pphex fde1.fde_cie_pointer (* duplicated?? *) ^ (" pc=" ^ ((match fde1.fde_initial_location_segment_selector with None -> "" | Some segment_selector -> "("^(pphex segment_selector^")") ) ^ (pphex fde1.fde_initial_location_address ^ (".." ^ (pphex ( Nat_big_num.add fde1.fde_initial_location_address fde1.fde_address_range) ^ ("\n" ^ (ppbytes fde1.fde_instructions_bytes ^ ("\n" ^ pp_call_frame_instructions fde1.fde_instructions)))))))))))))))) let pp_frame_info_element c cuh fie:string= ((match fie with | FIE_cie cie1 -> pp_cie c cuh cie1 | FIE_fde fde1 -> pp_fde c cuh fde1 )) let pp_frame_info c cuh fi:string= ("Contents of the .debug_frame section:\n\n" ^ (String.concat "\n" (Lem_list.map (pp_frame_info_element c cuh) fi) ^ "\n")) let rec find_cie fi cie_id1:cie= ((match fi with | [] -> failwith "find_cie: cie_id not found" | FIE_fde _ :: fi' -> find_cie fi' cie_id1 | FIE_cie cie1 :: fi' -> if Nat_big_num.equal cie_id1 cie1.cie_offset then cie1 else find_cie fi' cie_id1 )) let parse_initial_location c cuh mss mas' : (( Nat_big_num.num option) * Nat_big_num.num) parser= ( (*(segment selector and target address)*) (* assume segment selector size is zero unless given explicitly. Probably we need to do something architecture-specific for earlier dwarf versions?*)parse_pair (parse_uint_segment_selector_size c ((match mss with Some n -> n | None -> (Nat_big_num.of_int 0) ))) (parse_uint_address_size c ((match mas' with Some n -> n | None -> cuh.cuh_address_size )))) let parse_call_frame_instruction_bytes offset' ul:parse_context ->(Byte_sequence_wrapper.byte_sequence)parse_result= (fun (pc: parse_context) -> parse_n_bytes ( Nat_big_num.sub_nat ul ( Nat_big_num.sub_nat pc.pc_offset offset')) pc) let parse_frame_info_element c cuh (fi: frame_info_element list) : frame_info_element parser= (parse_dependent (pr_with_pos (parse_dependent_pair (parse_unit_length c) (fun (df,ul) -> pr_with_pos (parse_uintDwarfN c df) (* CIE_id (cie) or CIE_pointer (fde) *) ))) (fun (offset,((df,ul),(offset',cie_id1))) -> if ( Nat_big_num.equal cie_id1 (match df with | Dwarf32 -> natural_of_hex "0xffffffff" | Dwarf64 -> natural_of_hex "0xffffffffffffffff" )) then (* parse cie *) pr_post_map (parse_pair (parse_dependent_pair parse_uint8 (* version *) (fun v -> parse_triple parse_string (* augmentation *) (if Nat_big_num.equal v( (Nat_big_num.of_int 4)) ||Nat_big_num.equal v( (Nat_big_num.of_int 46)) then pr_post_map parse_uint8 (fun i->Some i) else pr_return None) (* address_size *) (if Nat_big_num.equal v( (Nat_big_num.of_int 4)) ||Nat_big_num.equal v( (Nat_big_num.of_int 46)) then pr_post_map parse_uint8 (fun i->Some i) else pr_return None))) (* segment_size *) (parse_quadruple parse_ULEB128 (* code_alignment_factor *) parse_SLEB128 (* data_alignment_factor *) parse_ULEB128 (* return address register *) (parse_call_frame_instruction_bytes offset' ul))) (fun ( (v,(aug,(mas',mss))), (caf,(daf,(rar,bs))) ) -> let pc = ({pc_bytes = bs; pc_offset =( (Nat_big_num.of_int 0)) }) in (match parse_call_frame_instructions c cuh pc with | PR_success( is, _) -> FIE_cie ( { cie_offset = offset; cie_length = ul; cie_id = cie_id1; cie_version = v; cie_augmentation = aug; cie_address_size = mas'; cie_segment_size = mss; cie_code_alignment_factor = caf; cie_data_alignment_factor = daf; cie_return_address_register = rar; cie_initial_instructions_bytes = bs; cie_initial_instructions = is; }) | PR_fail( s, _) -> failwith s ) ) else (* parse fde *) let cie1 = (find_cie fi cie_id1) in (* let _ = my_debug4 (pp_cie c cuh cie) in *) pr_post_map (parse_triple (parse_initial_location c cuh cie1.cie_segment_size cie1.cie_address_size) (*(segment selector and target address)*) (parse_uint_address_size c ((match cie1.cie_address_size with Some n -> n | None -> cuh.cuh_address_size ))) (* address_range (target address) *) (parse_call_frame_instruction_bytes offset' ul) ) (fun ( (ss,adr), (ar, bs)) -> let pc = ({pc_bytes = bs; pc_offset =( (Nat_big_num.of_int 0)) }) in (match parse_call_frame_instructions c cuh pc with | PR_success( is, _) -> FIE_fde ( { fde_offset = offset; fde_length = ul; fde_cie_pointer = cie_id1; fde_initial_location_segment_selector = ss; fde_initial_location_address = adr; fde_address_range = ar; fde_instructions_bytes = bs; fde_instructions = is; } ) | PR_fail( s, _) -> failwith s ) ) )) (* you can't even parse an fde without accessing the cie it refers to (to determine the segment selector size). Gratuitous complexity or what? Hence the following, which should be made more tail-recursive. *) (*val parse_dependent_list' : forall 'a. (list 'a -> parser 'a) -> list 'a -> parser (list 'a)*) let rec parse_dependent_list' p1 acc:parse_context ->('a list)parse_result= (fun pc -> if Nat_big_num.equal (Byte_sequence.length0 pc.pc_bytes)( (Nat_big_num.of_int 0)) then PR_success( (List.rev acc), pc) else pr_bind (p1 acc pc) (fun x pc' -> parse_dependent_list' p1 (x::acc) pc')) (*val parse_dependent_list : forall 'a. (list 'a -> parser 'a) -> parser (list 'a)*) let parse_dependent_list p1:parse_context ->('a list)parse_result= (parse_dependent_list' p1 []) let parse_frame_info c cuh : frame_info parser= (parse_dependent_list (parse_frame_info_element c cuh)) (** line numbers .debug_line, pp and parsing *) let pp_line_number_file_entry lnfe:string= ("lnfe_path = " ^ (string_of_byte_sequence lnfe.lnfe_path ^ ("\n" ^ ("lnfe_directory_index " ^ (Nat_big_num.to_string lnfe.lnfe_directory_index ^ ("\n" ^ ("lnfe_last_modification = " ^ (Nat_big_num.to_string lnfe.lnfe_last_modification ^ ("\n" ^ ("lnfe_length = " ^ (Nat_big_num.to_string lnfe.lnfe_length ^ "\n"))))))))))) let pp_line_number_header lnh:string= ("offset = " ^ (pphex lnh.lnh_offset ^ ("\n" ^ ("dwarf_format = " ^ (pp_dwarf_format lnh.lnh_dwarf_format ^ ("\n" ^ ("unit_length = " ^ (Nat_big_num.to_string lnh.lnh_unit_length ^ ("\n" ^ ("version = " ^ (Nat_big_num.to_string lnh.lnh_version ^ ("\n" ^ ("header_length = " ^ (Nat_big_num.to_string lnh.lnh_header_length ^ ("\n" ^ ("minimum_instruction_length = " ^ (Nat_big_num.to_string lnh.lnh_minimum_instruction_length ^ ("\n" ^ ("maximum_operations_per_instruction = " ^ (Nat_big_num.to_string lnh.lnh_maximum_operations_per_instruction ^ ("\n" ^ ("default_is_stmt = " ^ (string_of_bool lnh.lnh_default_is_stmt ^ ("\n" ^ ("line_base = " ^ (Nat_big_num.to_string lnh.lnh_line_base ^ ("\n" ^ ("line_range = " ^ (Nat_big_num.to_string lnh.lnh_line_range ^ ("\n" ^ ("opcode_base = " ^ (Nat_big_num.to_string lnh.lnh_opcode_base ^ ("\n" ^ ("standard_opcode_lengths = " ^ (string_of_list instance_Show_Show_Num_natural_dict lnh.lnh_standard_opcode_lengths ^ ("\n" ^ ("comp_dir = " ^ (string_of_maybe instance_Show_Show_string_dict lnh.lnh_comp_dir ^ ("\n" ^ ("include_directories = " ^ (String.concat ", " (Lem_list.map string_of_byte_sequence lnh.lnh_include_directories) ^ ("\n" ^ ("file_entries = \n\n" ^ (String.concat "\n" (Lem_list.map pp_line_number_file_entry lnh.lnh_file_entries) ^ "\n")))))))))))))))))))))))))))))))))))))))))))) let pp_line_number_operation lno:string= ((match lno with | DW_LNS_copy -> "DW_LNS_copy" | DW_LNS_advance_pc n -> "DW_LNS_advance_pc" ^ (" " ^ Nat_big_num.to_string n) | DW_LNS_advance_line i -> "DW_LNS_advance_line" ^ (" " ^ Nat_big_num.to_string i) | DW_LNS_set_file n -> "DW_LNS_set_file" ^ (" " ^ Nat_big_num.to_string n) | DW_LNS_set_column n -> "DW_LNS_set_column" ^ (" " ^ Nat_big_num.to_string n) | DW_LNS_negate_stmt -> "DW_LNS_negate_stmt" | DW_LNS_set_basic_block -> "DW_LNS_set_basic_block" | DW_LNS_const_add_pc -> "DW_LNS_const_add_pc" | DW_LNS_fixed_advance_pc n -> "DW_LNS_fixed_advance_pc" ^ (" " ^ Nat_big_num.to_string n) | DW_LNS_set_prologue_end -> "DW_LNS_set_prologue_end" | DW_LNS_set_epilogue_begin -> "DW_LNS_set_epilogue_begin" | DW_LNS_set_isa n -> "DW_LNS_set_isa" ^ (" " ^ Nat_big_num.to_string n) | DW_LNE_end_sequence -> "DW_LNE_end_sequence" | DW_LNE_set_address n -> "DW_LNE_set_address" ^ (" " ^ pphex n) | DW_LNE_define_file( s, n1, n2, n3) -> "DW_LNE_define_file" ^ (" " ^ (Byte_sequence_wrapper.to_string s ^ (" " ^ (Nat_big_num.to_string n1 ^ (" " ^ (Nat_big_num.to_string n2 ^ (" " ^ Nat_big_num.to_string n3))))))) | DW_LNE_set_discriminator n -> "DW_LNE_set_discriminator" ^ (" " ^ Nat_big_num.to_string n) | DW_LN_special n -> "DW_LN_special" ^ (" " ^ Nat_big_num.to_string n) )) let pp_line_number_program lnp:string= (pp_line_number_header lnp.lnp_header ^ ("[" ^ (String.concat ", " (Lem_list.map pp_line_number_operation lnp.lnp_operations) ^ "]\n"))) let parse_line_number_file_entry : ( line_number_file_entry option) parser= (parse_dependent (parse_non_empty_string) (fun ms -> (match ms with | None -> pr_return None | Some s -> pr_post_map (parse_triple parse_ULEB128 parse_ULEB128 parse_ULEB128 ) (fun (n1,(n2,n3)) -> (Some { lnfe_path = s; lnfe_directory_index = n1; lnfe_last_modification = n2; lnfe_length = n3; } ) ) ) )) let parse_line_number_header c (comp_dir: string option) : line_number_header parser= (parse_dependent ((pr_with_pos (parse_unit_length c) )) (fun (pos,(df,ul)) -> (* parse_dependent_pair (parse_pair (parse_triple (parse_uint16 c) (* version *) (parse_uintDwarfN c df) (* header_length *) (parse_uint8) (* minimum_instruction_length *) (* (parse_uint8) (* maximum_operations_per_instruction NOT IN DWARF 2*)*) ) (parse_quadruple (parse_uint8) (* default_is_stmt *) (parse_sint8) (* line_base *) (parse_uint8) (* line_range *) (parse_uint8) (* opcode_base *) )) (fun ((v,(hl,(minil(*,maxopi*)))),(dis,(lb,(lr,ob)))) -> *) (parse_dependent (parse_dependent_pair (parse_uint16 c) (* version *) (fun v -> (parse_pair (parse_triple (parse_uintDwarfN c df) (* header_length *) (parse_uint8) (* minimum_instruction_length *) (if Nat_big_num.less v( (Nat_big_num.of_int 4)) then (* maximum_operations_per_instruction*)(* NOT IN DWARF 2 or 3; in DWARF 4*) (parse_uint8_constant( (Nat_big_num.of_int 1))) else (parse_uint8) )) (parse_quadruple (parse_uint8) (* default_is_stmt *) (parse_sint8) (* line_base *) (parse_uint8) (* line_range *) (parse_uint8) (* opcode_base *) )))) (fun ((v,(((hl,(minil,maxopi))),(dis,(lb,(lr,ob)))))) -> pr_post_map (parse_triple (pr_post_map (parse_n_bytes (Nat_big_num.sub_nat ob( (Nat_big_num.of_int 1)))) (fun bs -> Lem_list.map natural_of_byte (byte_list_of_byte_sequence bs))) (* standard_opcode_lengths *) ((*pr_return [[]]*) parse_list parse_non_empty_string) (* include_directories *) (parse_list parse_line_number_file_entry) (* file names *) ) (fun (sols, (ids, fns)) -> { lnh_offset = pos; lnh_dwarf_format = df; lnh_unit_length = ul; lnh_version = v; lnh_header_length = hl; lnh_minimum_instruction_length = minil; lnh_maximum_operations_per_instruction = maxopi; lnh_default_is_stmt = (not (Nat_big_num.equal dis( (Nat_big_num.of_int 0)))); lnh_line_base = lb; lnh_line_range = lr; lnh_opcode_base = ob; lnh_standard_opcode_lengths = sols; lnh_include_directories = ids; lnh_file_entries = fns; lnh_comp_dir = comp_dir; } ) ) ) ) ) let parser_of_line_number_argument_type c (cuh: compilation_unit_header) (lnat: line_number_argument_type) : line_number_argument_value parser= ((match lnat with | LNAT_address -> pr_map2 (fun n -> LNAV_address n) (parse_uint_address_size c cuh.cuh_address_size) | LNAT_ULEB128 -> pr_map2 (fun n -> LNAV_ULEB128 n) (parse_ULEB128) | LNAT_SLEB128 -> pr_map2 (fun i -> LNAV_SLEB128 i) (parse_SLEB128) | LNAT_uint16 -> pr_map2 (fun n -> LNAV_uint16 n) (parse_uint16 c) | LNAT_string -> pr_map2 (fun s -> LNAV_string s) (parse_string) )) let parse_line_number_operation c (cuh: compilation_unit_header) (lnh: line_number_header) : line_number_operation parser= (parse_dependent parse_uint8 (fun opcode -> if Nat_big_num.equal opcode( (Nat_big_num.of_int 0)) then (* parse extended opcode *) parse_dependent (parse_pair parse_ULEB128 parse_uint8) (fun (size2,opcode') -> (match lookup_aBcd_acd instance_Basic_classes_Eq_Num_natural_dict opcode' line_number_extended_encodings with | Some (_, arg_types, result) -> let ps = (Lem_list.map (parser_of_line_number_argument_type c cuh) arg_types) in parse_demaybe ("parse_line_number_operation fail") (pr_post_map (parse_parser_list ps) result ) | None -> failwith ("parse_line_number_operation extended opcode not found: " ^ Nat_big_num.to_string opcode') )) (* it's not clear what the ULEB128 size field is for, as the extended opcides all seem to have well-defined sizes. perhaps there can be extra padding that needs to be absorbed? *) else if Nat_big_num.greater_equal opcode lnh.lnh_opcode_base then (* parse special opcode *) let adjusted_opcode = (Nat_big_num.sub_nat opcode lnh.lnh_opcode_base) in pr_return (DW_LN_special adjusted_opcode) else (* parse standard opcode *) (match lookup_aBcd_acd instance_Basic_classes_Eq_Num_natural_dict opcode line_number_standard_encodings with | Some (_, arg_types, result) -> let ps = (Lem_list.map (parser_of_line_number_argument_type c cuh) arg_types) in parse_demaybe ("parse_line_number_operation fail") (pr_post_map (parse_parser_list ps) result) | None -> failwith ("parse_line_number_operation standard opcode not found: " ^ Nat_big_num.to_string opcode) (* the standard_opcode_lengths machinery is intended to allow vendor specific extension instructions to be parsed and ignored, but here we couldn't usefully process such instructions in any case, so we just fail *) ))) let parse_line_number_operations c (cuh:compilation_unit_header) (lnh:line_number_header) : ( line_number_operation list) parser= (parse_list (parse_maybe (parse_line_number_operation c cuh lnh))) (* assume operations start immediately after the header - not completely clear in DWARF whether the header_length is just an optimisation or whether it's intended to allow the operations to start later *) (* line number operations have no no-op and no termination operation, so we have to cut down the available bytes to the right length *) let parse_line_number_program c (cuh:compilation_unit_header) (comp_dir: string option) : line_number_program parser= (parse_dependent (parse_line_number_header c comp_dir) (fun lnh -> let byte_count_of_operations = (Nat_big_num.sub_nat lnh.lnh_unit_length ( Nat_big_num.add (Nat_big_num.add lnh.lnh_header_length( (Nat_big_num.of_int 2))) ((match lnh.lnh_dwarf_format with Dwarf32 -> (Nat_big_num.of_int 4) | Dwarf64 -> (Nat_big_num.of_int 8) )))) in pr_post_map (parse_restrict_length byte_count_of_operations (parse_line_number_operations c cuh lnh) ) (fun ops -> { lnp_header = lnh; lnp_operations = ops; }) )) (*TODO: this should use find_natural_attribute_value_of_die *) let line_number_offset_of_compilation_unit c cu:Nat_big_num.num= ((match find_attribute_value "DW_AT_stmt_list" cu.cu_die with | Some (AV_sec_offset n) -> n | Some (AV_block( n, bs)) -> natural_of_bytes c.endianness bs (* a 32-bit MIPS example used a 4-byte AV_block not AV_sec_offset *) | Some _ -> (failwith ("compilation unit DW_AT_stmt_list attribute was not an AV_sec_offset" ^ pp_compilation_unit_header cu.cu_header)) | _ -> failwith ("compilation unit did not have a DW_AT_stmt_list attribute\n" ^ (pp_compilation_unit_header cu.cu_header ^ "\n")) )) let line_number_program_of_compilation_unit d cu:line_number_program= (let c = (p_context_of_d d) in let offset = (line_number_offset_of_compilation_unit c cu) in (match Lem_list.list_find_opt (fun lnp -> Nat_big_num.equal lnp.lnp_header.lnh_offset offset) d.d_line_info with | None -> failwith "compilation unit line number offset not found" | Some lnp ->lnp )) let filename d cu n:(string)option= (let lnp = (line_number_program_of_compilation_unit d cu) in if Nat_big_num.equal n( (Nat_big_num.of_int 0)) then None else (match mynth ( Nat_big_num.sub_nat n( (Nat_big_num.of_int 1))) lnp.lnp_header.lnh_file_entries with | Some lnfe -> Some (string_of_byte_sequence lnfe.lnfe_path) | None -> failwith ("line number file entry not found") )) let unpack_file_entry lnh file : unpacked_file_entry= ((match mynth ( Nat_big_num.sub_nat file( (Nat_big_num.of_int 1))) lnh.lnh_file_entries with | Some lnfe -> let directory = (if Nat_big_num.equal lnfe.lnfe_directory_index( (Nat_big_num.of_int 0)) then None else (match mynth ( Nat_big_num.sub_nat lnfe.lnfe_directory_index( (Nat_big_num.of_int 1))) lnh.lnh_include_directories with | Some d -> Some (string_of_byte_sequence d) | None -> Some "<unpack_file_entry: directory entry not found>" )) in (lnh.lnh_comp_dir, directory, string_of_byte_sequence lnfe.lnfe_path) | None -> (None,None,"<unpack_file_entry: file entry not found>") )) let pp_ufe (((mcomp_dir,mdir,file) as ufe) : unpacked_file_entry) : string= (file ^ (" dir=" ^ ((match mdir with | Some s->s|None->"<none>" ) ^ (" comp_dir=" ^ (match mcomp_dir with | Some s->s|None->"<none>" ))))) let pp_ud (((((mcomp_dir,mdir,file) as ufe) : unpacked_file_entry), (line:int), (subprogram_name:string)) : unpacked_decl) : string= (file ^ (":" ^ (Stdlib.string_of_int line ^ (" " ^ (subprogram_name ^ (" dir=" ^ ((match mdir with | Some s->s|None->"<none>" ) ^ (" comp_dir=" ^ (match mcomp_dir with | Some s->s|None->"<none>" ))))))))) let pp_ufe_brief (((mcomp_dir,mdir,file) as ufe) : unpacked_file_entry) : string= file (* ^ " dir=" ^ match mdir with | Just s->s|Nothing->"<none>" end ^ " comp_dir=" ^ match mcomp_dir with | Just s->s|Nothing->"<none>" end *) let parse_line_number_info c str (d_line: byte_sequence0) (cu: compilation_unit) : line_number_program= (let comp_dir = (find_string_attribute_value_of_die "DW_AT_comp_dir" str cu.cu_die) in let f n= (let d_line' = ((match dropbytes n d_line with Success xs -> xs | Fail _ -> failwith "parse_line_number_info drop" )) in let pc = ({ pc_bytes = d_line'; pc_offset = n}) in (match parse_line_number_program c cu.cu_header comp_dir pc with | PR_success( lnp, pc') -> (*let _ = print_endline (pp_line_number_program lnp) in*) lnp | PR_fail( s, pc') -> failwith ("parse_line_number_header failed: " ^ s) )) in f (line_number_offset_of_compilation_unit c cu)) let parse_line_number_infos c str debug_line_section_body compilation_units1:(line_number_program)list= (Lem_list.map (parse_line_number_info c str debug_line_section_body) compilation_units1) let pp_line_info li:string= (String.concat "\n" (Lem_list.map (pp_line_number_program) li)) (** all dwarf info: pp and parsing *) (* roughly matching objdump --dwarf=abbrev,info *) let pp_dwarf_like_objdump d:string= (let c = (p_context_of_d d) in "" (* ^ "\n*** compilation unit abbreviation table ***\n" *) ^ ("Contents of the .debug_abbrev section:\n\n" ^ (" Number TAG (0x0)\n" ^ (pp_abbreviations_tables d (* ^ "\n*** compilation unit die tree ***\n"*) (* "\n************** .debug_info section - abbreviated *****************\n" ^ pp_compilation_units_abbrev c d.d_str d.d_compilation_units ^*) (* ^"\n************** .debug_info section - full ************************\n"*) ^ ("\nContents of the .debug_info section:\n\n" ^ pp_compilation_units c false (*false for no indent, like objdump; true for nice indent *) d.d_str d.d_compilation_units))))) let pp_dwarf d:string= (let c = (p_context_of_d d) in (* "\n************** .debug_info section - abbreviated *****************\n" ^ pp_compilation_units_abbrev c d.d_str d.d_compilation_units ^*) "\n************** .debug_info section - full ************************\n" ^ (pp_compilation_units c true d.d_str d.d_compilation_units ^ ("\n************** .debug_loc section: location lists ****************\n" ^ (let (cuh_default : compilation_unit_header) = (let cu = (myhead d.d_compilation_units) in cu.cu_header) in pp_loc c cuh_default d.d_loc ^ ("\n************** .debug_ranges section: range lists ****************\n" ^ (pp_ranges c cuh_default d.d_ranges ^ ("\n************** .debug_frame section: frame info ****************\n" ^ (pp_frame_info c cuh_default d.d_frame_info ^ ("\n************** .debug_line section: line number info ****************\n" ^ pp_line_info d.d_line_info))))))))) (* TODO: don't use lists of bytes here! *) let parse_dwarf c (debug_info_section_body: byte_sequence0) (debug_abbrev_section_body: byte_sequence0) (debug_str_section_body: byte_sequence0) (debug_loc_section_body: byte_sequence0) (debug_ranges_section_body: byte_sequence0) (debug_frame_section_body: byte_sequence0) (debug_line_section_body: byte_sequence0) : dwarf= (let pc_info = ({pc_bytes = debug_info_section_body; pc_offset =( (Nat_big_num.of_int 0)) }) in let compilation_units1 = ((match parse_compilation_units c debug_str_section_body debug_abbrev_section_body pc_info with | PR_fail( s, pc_info') -> failwith ("parse_compilation_units: " ^ pp_parse_fail s pc_info') | PR_success( cus, pc_info') -> cus )) in (*let _ = my_debug5 (pp_compilation_units c debug_str_section_body compilation_units) in*) (* the DWARF4 spec doesn't seem to specify the address size used in the .debug_loc section, so we (hackishly) take it from the first compilation unit *) let (cuh_default : compilation_unit_header) = (let cu = (myhead compilation_units1) in cu.cu_header) in let pc_loc = ({pc_bytes = debug_loc_section_body; pc_offset =( (Nat_big_num.of_int 0)) }) in let loc = ((match parse_location_list_list c cuh_default pc_loc with | PR_fail( s, pc_info') -> failwith ("parse_location_list: " ^ pp_parse_fail s pc_info') | PR_success( loc, pc_loc') -> loc )) in let pc_ranges = ({pc_bytes = debug_ranges_section_body; pc_offset =( (Nat_big_num.of_int 0)) }) in let ranges = ((match parse_range_list_list c cuh_default pc_ranges with | PR_fail( s, pc_info') -> failwith ("parse_range_list: " ^ pp_parse_fail s pc_info') | PR_success( r, pc_loc') -> r )) in let pc_frame = ({pc_bytes = debug_frame_section_body; pc_offset =( (Nat_big_num.of_int 0)) }) in let fi = ( (* let _ = my_debug5 ("debug_frame_section_body:\n" ^ ppbytes2 0 debug_frame_section_body) in *)(match parse_frame_info c cuh_default pc_frame with | PR_fail( s, pc_info') -> failwith ("parse_frame_info: " ^ pp_parse_fail s pc_info') | PR_success( fi, pc_loc') -> fi )) in let li = (parse_line_number_infos c debug_str_section_body debug_line_section_body compilation_units1) in { d_endianness = (c.endianness); d_str = debug_str_section_body; d_compilation_units = compilation_units1; d_type_units = ([]); d_loc = loc; d_ranges = ranges; d_frame_info = fi; d_line_info = li; }) (*val extract_section_body : elf_file -> string -> bool -> p_context * natural * byte_sequence*) let extract_section_body (f:elf_file) (section_name:string) (strict1: bool):p_context*Nat_big_num.num*Byte_sequence_wrapper.byte_sequence= (let (en: Endianness.endianness) = ((match f with | ELF_File_32 f32 -> Elf_header.get_elf32_header_endianness f32.Elf_file.elf32_file_header | ELF_File_64 f64 -> Elf_header.get_elf64_header_endianness f64.Elf_file.elf64_file_header )) in let (c: p_context) = ({ endianness = en }) in (match f with | ELF_File_32 f32 -> let sections = (List.filter (fun x -> x.Elf_interpreted_section.elf32_section_name_as_string = section_name ) f32.elf32_file_interpreted_sections) in (match sections with | [section] -> let section_addr = (section.Elf_interpreted_section.elf32_section_addr) in let section_body = (section.Elf_interpreted_section.elf32_section_body) in (* let _ = my_debug4 (section_name ^ (": \n" ^ (Elf_interpreted_section.string_of_elf32_interpreted_section section ^ "\n" * ^ " body = " ^ ppbytes2 0 section_body ^ "\n"))) in *) (c,section_addr,section_body) | [] -> if strict1 then failwith ("" ^ (section_name ^ " section not present")) else (c, (Nat_big_num.of_int 0),Byte_sequence.empty) | _ -> failwith ("multiple " ^ (section_name ^ " sections present")) ) | ELF_File_64 f64 -> let sections = (List.filter (fun x -> x.Elf_interpreted_section.elf64_section_name_as_string = section_name ) f64.elf64_file_interpreted_sections) in (match sections with | [section] -> let section_addr = (section.Elf_interpreted_section.elf64_section_addr) in let section_body = (section.Elf_interpreted_section.elf64_section_body) in (c,section_addr,section_body) | [] -> if strict1 then failwith ("" ^ (section_name ^ " section not present")) else (c, (Nat_big_num.of_int 0),Byte_sequence.empty) | _ -> failwith ("multiple " ^ (section_name ^ " sections present")) ) )) (*val extract_dwarf : elf_file -> maybe dwarf*) let extract_dwarf f:(dwarf)option= (let (c, _, debug_info_section_body) = (extract_section_body f ".debug_info" true) in let (c, _, debug_abbrev_section_body) = (extract_section_body f ".debug_abbrev" false) in let (c, _, debug_str_section_body) = (extract_section_body f ".debug_str" false) in let (c, _, debug_loc_section_body) = (extract_section_body f ".debug_loc" false) in let (c, _, debug_ranges_section_body) = (extract_section_body f ".debug_ranges" false) in let (c, _, debug_frame_section_body) = (extract_section_body f ".debug_frame" false) in let (c, _, debug_line_section_body) = (extract_section_body f ".debug_line" false) in let d = (parse_dwarf c debug_info_section_body debug_abbrev_section_body debug_str_section_body debug_loc_section_body debug_ranges_section_body debug_frame_section_body debug_line_section_body) in Some d) (*val extract_text : elf_file -> p_context * natural * byte_sequence*) (* (p_context, elf32/64_section_addr, elf32/64_section_body) *) let extract_text f:p_context*Nat_big_num.num*byte_sequence0= (extract_section_body f ".text" true) (** ************************************************************ *) (** ****** location evaluation ******************************** *) (** ************************************************************ *) (** pp of locations *) (*val pp_simple_location : simple_location -> string*) let pp_simple_location sl:string= ((match sl with | SL_memory_address n -> pphex n | SL_register n -> "reg" ^ Nat_big_num.to_string n | SL_implicit bs -> "value: " ^ ppbytes bs | SL_empty -> "<empty>" )) (*val pp_composite_location_piece : composite_location_piece -> string*) let pp_composite_location_piece clp:string= ((match clp with | CLP_piece( n, sl) -> "piece (" ^ (Nat_big_num.to_string n ^ (") " ^ pp_simple_location sl)) | CLP_bit_piece( n1, n2, sl) -> "bit_piece (" ^ (Nat_big_num.to_string n1 ^ ("," ^ (Nat_big_num.to_string n2 ^ (") " ^ pp_simple_location sl)))) )) (*val pp_single_location: single_location -> string*) let pp_single_location sl:string= ((match sl with | SL_simple sl -> pp_simple_location sl | SL_composite clps -> "composite: " ^ String.concat ", " (Lem_list.map pp_composite_location_piece clps) )) (** evaluation of location expressions *) (* cf dwarflist, btw: https://fedorahosted.org/elfutils/wiki/DwarfLint?format=txt *) (* location description ::= | single location description | location list single location description ::= | simple location description | composite location description simple location description ::= | memory location description : non-empty dwarf expr, value is address of all or part of object in memory | register location description : single DW_OP_regN or DW_OP_regx, naming a register in which all the object is | implicit location description : single DW_OP_implicit_value or a non-empty dwarf expr ending in DW_OP_stack_value, giving the value of all/part of object | empty location description : an empty dwarf expr, indicating a part or all of an object that is not represented composite location description : a list of simple location descriptions, each followed by a DW_OP_piece or DW_OP_bitpiece (the simple location description can be a register location description: https://www.mail-archive.com/dwarf-discuss@lists.dwarfstd.org/msg00271.html) (contradicting "A register location description must stand alone as the entire description of an object or a piece of an object.") location list entry : a list of address ranges (possibly overlapping), each with a single location description Dwarf expressions can include data-dependent control flow choices (though we don't see that in the examples?), so we can't statically determine which kind of single location description or simple location description we have. We can distinguish: - empty -> simple.empty - DW_OP_regN/DW_OP_regx -> simple.register - DW_OP_implicit_value -> simple.implicit - any of those followed by DW_OP_piece or DW_OP_bitpiece, perhaps followed by more composite parts -> composite part :: composite otherwise run to the end, or a DW_OP_stack_value at the end, or to anything (except a DO_OP_regN/DW_OP_regx) followed by a DW_OP_piece/DW_OP_bitpiece. Pfeh. actually used in our examples (ignoring GNU extentions): DW_OP_addr literal DW_OP_lit1 literal DW_OP_const4u literal DW_OP_breg3 (r3) read register value and add offset DW_OP_and bitwise and DW_OP_plus addition (mod whatever) DW_OP_deref_size DW_OP_fbreg evaluate location description from DW_AT_frame_base attribute of the current function (which is DW_OP_call_frame_cfa in our examples) and add offset DW_OP_implicit_value the argument block is the actual value (not location) of the entity in question DW_OP_stack_value use the value at top of stack as the actual value (not location) of the entity in question DW_OP_reg0 (r0)) read register value DW_OP_call_frame_cfa go off to 6.4 and pull info out of .debug_frame (possibly involving other location expressions) *) let initial_state:state= ({ s_stack = ([]); s_value = SL_empty; s_location_pieces = ([]); }) (* the main location expression evaluation function *) (* location expression evaluation is basically a recursive function down a list of operations, maintaining an operation_stack (a list of naturals representing machine-address-size words), the current simple_location, and a list of any composite_location_piece's accumulated so far *) let arithmetic_context_of_cuh cuh:arithmetic_context= ( if(Nat_big_num.equal cuh.cuh_address_size ( (Nat_big_num.of_int 8))) then ({ ac_bitwidth =( (Nat_big_num.of_int 64)); ac_half = (Nat_big_num.pow_int ( (Nat_big_num.of_int 2)) 32); ac_all = (Nat_big_num.pow_int ( (Nat_big_num.of_int 2)) 64); ac_max = (Nat_big_num.sub_nat (Nat_big_num.pow_int ( (Nat_big_num.of_int 2)) 64) ( (Nat_big_num.of_int 1))); }) else ( if(Nat_big_num.equal cuh.cuh_address_size ( (Nat_big_num.of_int 4))) then ({ ac_bitwidth =( (Nat_big_num.of_int 32)); ac_half = (Nat_big_num.pow_int ( (Nat_big_num.of_int 2)) 16); ac_all = (Nat_big_num.pow_int ( (Nat_big_num.of_int 2)) 32); ac_max = (Nat_big_num.sub_nat (Nat_big_num.pow_int ( (Nat_big_num.of_int 2)) 32) ( (Nat_big_num.of_int 1))); }) else (failwith "arithmetic_context_of_cuh given non-4/8 size"))) let find_cfa_table_row_for_pc (evaluated_frame_info1: evaluated_frame_info) (pc: Nat_big_num.num) : cfa_table_row= ((match myfind (fun (fde1,rows) -> Nat_big_num.greater_equal pc fde1.fde_initial_location_address && Nat_big_num.less pc (Nat_big_num.add fde1.fde_initial_location_address fde1.fde_address_range)) evaluated_frame_info1 with | Some (fde1,rows) -> (match myfind (fun row -> Nat_big_num.greater_equal pc row.ctr_loc) rows with | Some row -> row | None -> failwith "evaluate_cfa: no matchine row" ) | None -> failwith "evaluate_cfa: no fde encloding pc" )) let rec evaluate_operation_list (c:p_context) (dloc: location_list_list) (evaluated_frame_info1: evaluated_frame_info) (cuh: compilation_unit_header) (ac: arithmetic_context) (ev: evaluation_context) (mfbloc: attribute_value option) (pc: Nat_big_num.num) (s: state) (ops: operation list) : single_location error= (let push_memory_address v vs'= (Success { s with s_stack = (v :: vs'); s_value = (SL_memory_address v) }) in let push_memory_address_maybe (mv: Nat_big_num.num option) vs' (err:string) op= ((match mv with | Some v -> push_memory_address v vs' | None -> Fail (err ^ pp_operation op) )) in let bregxi r i= ((match ev.read_register r with | RRR_result v -> push_memory_address (partialNaturalFromInteger ( Nat_big_num.modulus(Nat_big_num.add( v)i) ( ac.ac_all))) s.s_stack | RRR_not_currently_available -> Fail "RRR_not_currently_available" | RRR_bad_register_number -> Fail ("RRR_bad_register_number " ^ Nat_big_num.to_string r) )) in let deref_size n= ((match s.s_stack with | v::vs' -> (match ev.read_memory v n with | MRR_result v' -> push_memory_address v' vs' | MRR_not_currently_available -> Fail "MRR_not_currently_available" | MRR_bad_address -> Fail "MRR_bad_address" ) | _ -> Fail "OpSem unary not given an element on stack" )) in (match ops with | [] -> if (listEqualBy (=) s.s_location_pieces []) then Success (SL_simple s.s_value) else if s.s_value = SL_empty then Success (SL_composite s.s_location_pieces) else (* unclear what's supposed to happen in this case *) Fail "unfinished part of composite expression" | op::ops' -> let es' = ((match (op.op_semantics, op.op_argument_values) with | (OpSem_nop, []) -> Success s | (OpSem_lit, [OAV_natural n]) -> push_memory_address n s.s_stack | (OpSem_lit, [OAV_integer i]) -> push_memory_address (partialTwosComplementNaturalFromInteger i ac.ac_half ( ac.ac_all)) s.s_stack | (OpSem_stack f, []) -> (match f ac s.s_stack op.op_argument_values with | Some stack' -> let value' : simple_location = ((match stack' with [] -> SL_empty | v'::_ -> SL_memory_address v' )) in Success { s with s_stack = stack'; s_value = value' } | None -> Fail "OpSem_stack failed" ) | (OpSem_not_supported, []) -> Fail ("OpSem_not_supported: " ^ pp_operation op) | (OpSem_binary f, []) -> (match s.s_stack with | v1::v2::vs' -> push_memory_address_maybe (f ac v1 v2) vs' "OpSem_binary error: " op | _ -> Fail "OpSem binary not given two elements on stack" ) | (OpSem_unary f, []) -> (match s.s_stack with | v1::vs' -> push_memory_address_maybe (f ac v1) vs' "OpSem_unary error: " op | _ -> Fail "OpSem unary not given an element on stack" ) | (OpSem_opcode_lit base, []) -> if Nat_big_num.greater_equal op.op_code base && Nat_big_num.less op.op_code (Nat_big_num.add base( (Nat_big_num.of_int 32))) then push_memory_address ( Nat_big_num.sub_nat op.op_code base) s.s_stack else Fail "OpSem_opcode_lit opcode not within [base,base+32)" | (OpSem_reg, []) -> (* TODO: unclear whether this should push the register id or not *) let r = (Nat_big_num.sub_nat op.op_code vDW_OP_reg0) in Success { s with s_stack = (r :: s.s_stack); s_value = (SL_register r) } | (OpSem_breg, [OAV_integer i]) -> let r = (Nat_big_num.sub_nat op.op_code vDW_OP_breg0) in bregxi r i | (OpSem_bregx, [OAV_natural r; OAV_integer i]) -> bregxi r i | (OpSem_deref, []) -> deref_size cuh.cuh_address_size | (OpSem_deref_size, [OAV_natural n]) -> deref_size n | (OpSem_fbreg, [OAV_integer i]) -> (match mfbloc with | Some fbloc -> (*let _ = my_debug5 ("OpSem_fbreg (" ^ show i ^ ")\n") in*) (match evaluate_location_description c dloc evaluated_frame_info1 cuh ac ev (*mfbloc*)None pc fbloc with (* what to do if the recursive call also uses fbreg? for now assume that's not allowed *) | Success l -> (match l with | SL_simple (SL_memory_address a) -> (*let _ = my_debug5 ("OpSem_fbreg: a = "^ pphex a ^ "\n") in*) let vi = (Nat_big_num.modulus ( Nat_big_num.add( a) i) ( ac.ac_all)) in (*let _ = my_debug5 ("OpSem_fbreg: v = "^ show vi ^ "\n") in*) let v = (partialNaturalFromInteger vi) (*ac.ac_half (integerFromNatural ac.ac_all)*) in push_memory_address v s.s_stack | _ -> Fail "OpSem_fbreg got a non-SL_simple (SL_memory_address _) result" (* "The DW_OP_fbreg operation provides a signed LEB128 offset from the address specified by the location description in the DW_AT_frame_base attribute of the current function. " - so what to do if the location description returns a non-memory-address location? *) ) | Fail e -> Fail ("OpSem_fbreg failure: " ^ e) ) | None -> Fail "OpSem_fbreg: no frame base location description given" ) | (OpSem_piece, [OAV_natural size_bytes]) -> let piece = (CLP_piece( size_bytes, s.s_value)) in (* we allow a piece (or bit_piece) to be any simple_location, including implicit and stack values. Unclear if this is intended, esp. the latter *) let stack' = ([]) in let value' = SL_empty in Success { s_stack = stack'; s_value = value'; s_location_pieces = (List.rev_append (List.rev s.s_location_pieces) [piece]) } | (OpSem_bit_piece, [OAV_natural size_bits; OAV_natural offset_bits]) -> let piece = (CLP_bit_piece( size_bits, offset_bits, s.s_value)) in let stack' = ([]) in let value' = SL_empty in Success { s_stack = stack'; s_value = value'; s_location_pieces = (List.rev_append (List.rev s.s_location_pieces) [piece]) } | (OpSem_implicit_value, [OAV_block( size2, bs)]) -> let stack' = ([]) in let value' = (SL_implicit bs) in Success { s with s_stack = stack'; s_value = value' } | (OpSem_stack_value, []) -> (* "The DW_OP_stack_value operation terminates the expression." - does this refer to just the subexpression, ie allowing a stack value to be a piece of a composite location, or necessarily the whole expression? Why does DW_OP_stack_value have this clause while DW_OP_implicit_value does not? *) (* why doesn't DW_OP_stack_value have a size argument? *) (match s.s_stack with | v::vs' -> let stack' = ([]) in let value' = (SL_implicit (bytes_of_natural c.endianness cuh.cuh_address_size v)) in Success { s with s_stack = stack'; s_value = value' } | _ -> Fail "OpSem_stack_value not given an element on stack" ) | (OpSem_call_frame_cfa, []) -> let row = (find_cfa_table_row_for_pc evaluated_frame_info1 pc) in (match row.ctr_cfa with | CR_undefined -> failwith "evaluate_cfa of CR_undefined" | CR_register( r, i) -> bregxi r i (* same behaviour as an OpSem_bregx *) | CR_expression bs -> failwith "CR_expression" (*TODO: fix result type - not this evaluate_location_description_bytes c dloc evaluated_frame_info cuh ac ev mfbloc pc bs*) (* TODO: restrict allowed OpSem_* in that recursive call *) ) | (_, _) -> Fail ("bad OpSem invocation: op=" ^ (pp_operation op ^ (" arguments=" ^ String.concat "" (Lem_list.map pp_operation_argument_value op.op_argument_values)))) )) in (match es' with | Success s' -> evaluate_operation_list c dloc evaluated_frame_info1 cuh ac ev mfbloc pc s' ops' | Fail e -> Fail e ) )) and evaluate_location_description_bytes (c:p_context) (dloc: location_list_list) (evaluated_frame_info1: evaluated_frame_info) (cuh: compilation_unit_header) (ac: arithmetic_context) (ev: evaluation_context) (mfbloc: attribute_value option) (pc: Nat_big_num.num) (bs: byte_sequence0) : single_location error= (let parse_context1 = ({pc_bytes = bs; pc_offset =( (Nat_big_num.of_int 0)) }) in (match parse_operations c cuh parse_context1 with | PR_fail( s, pc') -> Fail ("evaluate_location_description_bytes: parse_operations fail: " ^ pp_parse_fail s pc') | PR_success( ops, pc') -> if not (Nat_big_num.equal (Byte_sequence.length0 pc'.pc_bytes)( (Nat_big_num.of_int 0))) then Fail "evaluate_location_description_bytes: extra non-parsed bytes" else evaluate_operation_list c dloc evaluated_frame_info1 cuh ac ev mfbloc pc initial_state ops )) and evaluate_location_description (c:p_context) (dloc: location_list_list) (evaluated_frame_info1: evaluated_frame_info) (cuh: compilation_unit_header) (ac: arithmetic_context) (ev: evaluation_context) (mfbloc: attribute_value option) (pc: Nat_big_num.num) (loc:attribute_value) : single_location error= ((match loc with | AV_exprloc( n, bs) -> evaluate_location_description_bytes c dloc evaluated_frame_info1 cuh ac ev mfbloc pc bs | AV_block( n, bs) -> evaluate_location_description_bytes c dloc evaluated_frame_info1 cuh ac ev mfbloc pc bs | AV_sec_offset n -> let location_list1 = (find_location_list dloc n) in let (offset,(llis: location_list_item list)) = location_list1 in let f (lli:location_list_item) : single_location_description option= ((match lli with | LLI_lle lle -> if Nat_big_num.greater_equal pc lle.lle_beginning_address_offset && Nat_big_num.less pc lle.lle_ending_address_offset then Some lle.lle_single_location_description else None | LLI_base _ -> None (* TODO: either refactor to do offset during parsing or update base offsets here. Should refactor to use "interpreted". *) )) in (match myfindmaybe f llis with | Some bs -> evaluate_location_description_bytes c dloc evaluated_frame_info1 cuh ac ev mfbloc pc bs | None -> Fail "evaluate_location_description didn't find pc in location list ranges" ) | _ -> Fail "evaluate_location_description av_location not understood" )) (** ************************************************************ *) (** **** evaluation of frame information ********************** *) (** ************************************************************ *) (** register maps *) (*val rrp_update : register_rule_map -> cfa_register -> register_rule -> register_rule_map*) let rrp_update rrp r rr:(Nat_big_num.num*register_rule)list= ((r,rr)::rrp) (*val rrp_lookup : cfa_register -> register_rule_map -> register_rule*) let rrp_lookup r rrp:register_rule= ((match (lookupBy Nat_big_num.equal r rrp) with | Some rr -> rr | None -> RR_undefined )) (*val rrp_empty : register_rule_map*) let rrp_empty:(cfa_register*register_rule)list= ([]) (** pp of evaluated cfa information from .debug_frame *) (* readelf --debug-dump=frames-interp test/a.out Contents of the .eh_frame section: 00000000 00000014 00000000 CIE "zR" cf=1 df=-8 ra=16 LOC CFA ra 0000000000000000 rsp+8 c-8 00000018 00000024 0000001c FDE cie=00000000 pc=004003b0..004003d0 LOC CFA ra 00000000004003b0 rsp+16 c-8 00000000004003b6 rsp+24 c-8 00000000004003c0 exp c-8 00000040 0000001c 00000044 FDE cie=00000000 pc=004004b4..004004ba LOC CFA rbp ra 00000000004004b4 rsp+8 u c-8 00000000004004b5 rsp+16 c-16 c-8 00000000004004b8 rbp+16 c-16 c-8 00000000004004b9 rsp+8 c-16 c-8 00000060 00000024 00000064 FDE cie=00000000 pc=004004c0..00400549 LOC CFA rbx rbp r12 r13 r14 r15 ra 00000000004004c0 rsp+8 u u u u u u c-8 00000000004004d1 rsp+8 u c-48 c-40 u u u c-8 00000000004004f0 rsp+64 c-56 c-48 c-40 c-32 c-24 c-16 c-8 0000000000400548 rsp+8 c-56 c-48 c-40 c-32 c-24 c-16 c-8 00000088 00000014 0000008c FDE cie=00000000 pc=00400550..00400552 LOC CFA ra 0000000000400550 rsp+8 c-8 000000a0 ZERO terminator *) (*val mytoList : forall 'a. SetType 'a => set 'a -> list 'a*) let register_footprint_rrp (rrp: register_rule_map) : cfa_register Pset.set= (Pset.from_list Nat_big_num.compare (Lem_list.map fst rrp)) let register_footprint (rows: cfa_table_row list) : cfa_register list= (Pset.elements (bigunionListMap instance_Basic_classes_SetType_Num_natural_dict (fun row -> register_footprint_rrp row.ctr_regs) rows)) (*val max_lengths : list (list string) -> list natural*) let rec max_lengths xss:(Nat_big_num.num)list= ((match xss with | [] -> failwith "max_lengths" | xs::xss' -> let lens = (Lem_list.map (fun x -> Nat_big_num.of_int (String.length x)) xs) in if (listEqualBy (listEqualBy (=)) xss' []) then lens else let lens' = (max_lengths xss') in let z = (Lem_list.list_combine lens lens') in let lens'' = (Lem_list.map (fun (l1,l2)-> Nat_big_num.max l1 l2) z) in lens'' )) let rec pad_row xs lens:(string)list= ((match (xs,lens) with | ([],[]) -> [] | ([x],[len]) -> [x] | (x::(((_::_) as xs')), len::(((_::_) as lens'))) -> right_space_padded_to len x :: pad_row xs' lens' )) let pad_rows (xss : ( string list) list) : string= ((match xss with | [] -> "" | _ -> let lens = (max_lengths xss) in String.concat "" (Lem_list.map (fun xs -> String.concat " " (pad_row xs lens) ^ "\n") xss) )) let pp_evaluated_fde (fde1, (rows: cfa_table_row list)) : string= (let regs = (register_footprint rows) in let header : string list = ("LOC" :: ("CFA" :: Lem_list.map (pp_cfa_register instance_Show_Show_Num_natural_dict) regs)) in let ppd_rows : ( string list) list = (Lem_list.map (fun row -> pphex row.ctr_loc :: (pp_cfa_rule row.ctr_cfa :: Lem_list.map (fun r -> pp_register_rule (rrp_lookup r row.ctr_regs)) regs)) rows) in pad_rows (header :: ppd_rows)) let semi_pp_evaluated_fde (fde1, (rows: cfa_table_row list)) : (Nat_big_num.num (*address*) * string (*cfa*) * (string*string) list (*register rules*) ) list= (let regs = (register_footprint rows) in let ppd_rows = (Lem_list.map (fun row -> (row.ctr_loc, pp_cfa_rule row.ctr_cfa, Lem_list.map (fun r -> (pp_cfa_register instance_Show_Show_Num_natural_dict r, pp_register_rule (rrp_lookup r row.ctr_regs))) regs)) rows) in ppd_rows) (*val semi_pp_evaluated_frame_info : evaluated_frame_info -> list (natural (*address*) * string (*cfa*) * list (string*string) (*register rules*) )*) let semi_pp_evaluated_frame_info efi:(Nat_big_num.num*string*(string*string)list)list= (List.concat (Lem_list.map semi_pp_evaluated_fde efi)) (** evaluation of cfa information from .debug_frame *) let evaluate_call_frame_instruction (fi: frame_info) (cie1: cie) (state1: cfa_state) (cfi: call_frame_instruction) : cfa_state= (let create_row (loc: Nat_big_num.num)= (let row = ({ state1.cs_current_row with ctr_loc = loc }) in { state1 with cs_current_row = row; cs_previous_rows = (state1.cs_current_row::state1.cs_previous_rows) }) in let update_cfa (cr:cfa_rule)= (let row = ({ state1.cs_current_row with ctr_cfa = cr }) in { state1 with cs_current_row = row }) in let update_reg r rr= (let row = ({ state1.cs_current_row with ctr_regs = (rrp_update state1.cs_current_row.ctr_regs r rr) }) in { state1 with cs_current_row = row }) in (match cfi with (* Row Creation Instructions *) | DW_CFA_set_loc a -> create_row a | DW_CFA_advance_loc d -> create_row ( Nat_big_num.add state1.cs_current_row.ctr_loc (Nat_big_num.mul d cie1.cie_code_alignment_factor)) | DW_CFA_advance_loc1 d -> create_row ( Nat_big_num.add state1.cs_current_row.ctr_loc (Nat_big_num.mul d cie1.cie_code_alignment_factor)) | DW_CFA_advance_loc2 d -> create_row ( Nat_big_num.add state1.cs_current_row.ctr_loc (Nat_big_num.mul d cie1.cie_code_alignment_factor)) | DW_CFA_advance_loc4 d -> create_row ( Nat_big_num.add state1.cs_current_row.ctr_loc (Nat_big_num.mul d cie1.cie_code_alignment_factor)) (* CFA Definition Instructions *) | DW_CFA_def_cfa( r, n) -> update_cfa (CR_register( r, ( n))) | DW_CFA_def_cfa_sf( r, i) -> update_cfa (CR_register( r, ( Nat_big_num.mul i cie1.cie_data_alignment_factor))) | DW_CFA_def_cfa_register r -> (match state1.cs_current_row.ctr_cfa with | CR_register( r', i) -> update_cfa (CR_register( r, i)) | CR_undefined -> (* FIXME: this is to handle a bug in riscv64-gcc. gcc generates "DW_CFA_def_cfa_register: r2 (sp)" as the first instruction. Dwarf5 documentation seems to suggest this is not valid. We think what gcc meant to generate is "DW_CFA_def_cfa: r2 (sp) ofs 0" *) update_cfa (CR_register( r,( (Nat_big_num.of_int 0)))) | CR_expression _ -> failwith "DW_CFA_def_cfa_register: current rule is CR_expression" ) | DW_CFA_def_cfa_offset n -> (match state1.cs_current_row.ctr_cfa with | CR_register( r, i) -> update_cfa (CR_register( r, ( n))) | _ -> failwith "DW_CFA_def_cfa_offset: current rule is not CR_register" ) | DW_CFA_def_cfa_offset_sf i -> (match state1.cs_current_row.ctr_cfa with | CR_register( r, i') -> update_cfa (CR_register( r, ( Nat_big_num.mul i' cie1.cie_data_alignment_factor))) | _ -> failwith "DW_CFA_def_cfa_offset_sf: current rule is not CR_register" ) | DW_CFA_def_cfa_expression b -> update_cfa (CR_expression b) (* Register Rule Instrutions *) | DW_CFA_undefined r -> update_reg r (RR_undefined) | DW_CFA_same_value r -> update_reg r (RR_same_value) | DW_CFA_offset( r, n) -> update_reg r (RR_offset ( Nat_big_num.mul( n) cie1.cie_data_alignment_factor)) | DW_CFA_offset_extended( r, n) -> update_reg r (RR_offset ( Nat_big_num.mul( n) cie1.cie_data_alignment_factor)) | DW_CFA_offset_extended_sf( r, i) -> update_reg r (RR_offset ( Nat_big_num.mul i cie1.cie_data_alignment_factor)) | DW_CFA_val_offset( r, n) -> update_reg r (RR_val_offset ( Nat_big_num.mul( n) cie1.cie_data_alignment_factor)) | DW_CFA_val_offset_sf( r, i) -> update_reg r (RR_val_offset ( Nat_big_num.mul i cie1.cie_data_alignment_factor)) | DW_CFA_register( r1, r2) -> update_reg r1 (RR_register r2) | DW_CFA_expression( r, b) -> update_reg r (RR_expression b) | DW_CFA_val_expression( r, b) -> update_reg r (RR_val_expression b) | DW_CFA_restore r -> update_reg r (rrp_lookup r state1.cs_initial_instructions_row.ctr_regs) (* RR_undefined if the lookup fails? *) | DW_CFA_restore_extended r -> update_reg r (rrp_lookup r state1.cs_initial_instructions_row.ctr_regs) (* Row State Instructions *) (* do these also push and restore the CFA rule? *) | DW_CFA_remember_state -> { state1 with cs_row_stack = (state1.cs_current_row :: state1.cs_row_stack) } | DW_CFA_restore_state -> (match state1.cs_row_stack with | r::rs -> { state1 with cs_current_row = r; cs_row_stack = rs } | [] -> failwith "DW_CFA_restore_state: empty row stack" ) (* Padding Instruction *) | DW_CFA_nop -> state1 (* DW_CFA_AARCH64_negate_ra_state Instruction *) | DW_CFA_AARCH64_negate_ra_state -> state1 (* Unknown *) | DW_CFA_unknown b -> failwith ("evaluate_call_frame_instruction: DW_CFA_unknown " ^ hex_string_of_byte b) )) let rec evaluate_call_frame_instructions (fi: frame_info) (cie1: cie) (state1: cfa_state) (cfis: call_frame_instruction list) : cfa_state= ((match cfis with | [] -> state1 | cfi::cfis' -> let state' = (evaluate_call_frame_instruction fi cie1 state1 cfi) in evaluate_call_frame_instructions fi cie1 state' cfis' )) let evaluate_fde (fi: frame_info) (fde1:fde) : cfa_table_row list= (let cie1 = (find_cie fi fde1.fde_cie_pointer) in let final_location = (Nat_big_num.add fde1.fde_initial_location_address fde1.fde_address_range) in let initial_cfa_state = (let initial_row = ({ ctr_loc = (fde1.fde_initial_location_address); ctr_cfa = CR_undefined; ctr_regs = rrp_empty; }) in { cs_current_row = initial_row; cs_previous_rows = ([]); cs_initial_instructions_row = initial_row; cs_row_stack = ([]); }) in let state' = (evaluate_call_frame_instructions fi cie1 initial_cfa_state cie1.cie_initial_instructions) in let initial_row' = (state'.cs_current_row) in let state'' = ({ initial_cfa_state with cs_current_row = initial_row'; cs_initial_instructions_row = initial_row' }) in let state''' = (evaluate_call_frame_instructions fi cie1 (*final_location*) state'' fde1.fde_instructions) in List.rev (state'''.cs_current_row:: state'''.cs_previous_rows)) (*val evaluate_frame_info : dwarf -> evaluated_frame_info*) let evaluate_frame_info (d: dwarf) : evaluated_frame_info= (Lem_list.mapMaybe (fun fie -> (match fie with FIE_fde fde1 -> Some (fde1, (evaluate_fde d.d_frame_info fde1)) | FIE_cie _ -> None )) d.d_frame_info) let pp_evaluated_frame_info (efi: evaluated_frame_info):string= (String.concat "\n" (Lem_list.map pp_evaluated_fde efi)) (** ************************************************************ *) (** ** pp of type info *) (** ************************************************************ *) (* partial analysis and pp of type info - incomplete, but enough for some C code *) (* analyse top level of C type structure, without recursing into type subterms *) let strict s x:'a= ((match x with | Some y -> y | None -> failwith ("analyse_type_info_die strict failure on \n" ^ (s () ^ "\n")) )) let analyse_type_info_top c (d: dwarf) (r:bool(*recurse into members*)) (cupdie1: cupdie) : cupdie c_type_top= (let (cu,parents,die1) = cupdie1 in let mname = (find_name_of_die d.d_str die1) in let mtyp = (find_DW_AT_type_of_die c d cu d.d_str die1) in let s ()= (pp_die c cu.cu_header d.d_str true( (Nat_big_num.of_int 0)) false die1) in if Nat_big_num.equal die1.die_abbreviation_declaration.ad_tag (tag_encode "DW_TAG_base_type") then let encoding = (let n = (strict s (find_natural_attribute_value_of_die c "DW_AT_encoding" die1)) in if not(List.exists (fun (s,n')->Nat_big_num.equal n n') base_type_attribute_encodings) then strict s None else n) in (* TODO: handle user encodings correctly *) let mbyte_size = (find_natural_attribute_value_of_die c "DW_AT_byte_size" die1) in CT_base( cupdie1, (strict s mname), encoding, mbyte_size) else if Nat_big_num.equal die1.die_abbreviation_declaration.ad_tag (tag_encode "DW_TAG_pointer_type") then CT_pointer( cupdie1, mtyp) else if Nat_big_num.equal die1.die_abbreviation_declaration.ad_tag (tag_encode "DW_TAG_const_type") then CT_const( cupdie1, mtyp) else if Nat_big_num.equal die1.die_abbreviation_declaration.ad_tag (tag_encode "DW_TAG_volatile_type") then (* CT_volatile cupdie (strict s mtyp')*) (* TODO: this is a temporary hack, while we figure out what DW_TAG_volatile without a DW_AT_type is supposed to mean *) (match mtyp with | Some typ -> CT_volatile( cupdie1, typ) | None -> CT_missing cupdie1 ) else if Nat_big_num.equal die1.die_abbreviation_declaration.ad_tag (tag_encode "DW_TAG_restrict_type") then CT_restrict( cupdie1, (strict s mtyp)) else if Nat_big_num.equal die1.die_abbreviation_declaration.ad_tag (tag_encode "DW_TAG_typedef") then let decl1 = ({ decl_file = None; (* TODO *) decl_line = None; (* TODO *) }) in CT_typedef( cupdie1, (strict s mname), (strict s mtyp), decl1) else if Nat_big_num.equal die1.die_abbreviation_declaration.ad_tag (tag_encode "DW_TAG_array_type") then let dims = (let subranges = (List.filter (fun die' -> Nat_big_num.equal die'.die_abbreviation_declaration.ad_tag (tag_encode "DW_TAG_subrange_type")) die1.die_children) in Lem_list.map (fun die' -> (*WAS: let mcount = find_natural_attribute_value_of_die c "DW_AT_count" die' in*) let mcount = ((match find_attribute_value "DW_AT_count" die' with | None -> None | Some av -> (match maybe_natural_of_constant_attribute_value die' c av with | None -> None (* DWARF seems to sometimes use an AV_ref* attribute value for DW_AT_count, referring to a variable die, for a VLA length. In this case for the moment we will just forget the length information, which is what this clause does *) | Some n -> Some n ) )) in let msubrange_type = (find_DW_AT_type_of_die c d cu d.d_str die') in (mcount, msubrange_type)) subranges) in CT_array( cupdie1, (strict s mtyp), dims) else if Nat_big_num.equal die1.die_abbreviation_declaration.ad_tag (tag_encode "DW_TAG_structure_type") || Nat_big_num.equal die1.die_abbreviation_declaration.ad_tag (tag_encode "DW_TAG_union_type") then let atk = (if Nat_big_num.equal die1.die_abbreviation_declaration.ad_tag (tag_encode "DW_TAG_structure_type") then Atk_structure else Atk_union) in let mbyte_size = (find_natural_attribute_value_of_die c "DW_AT_byte_size" die1) in let decl1 = ({ decl_file = None; (* TODO *) decl_line = None; (* TODO *) }) in let members = (if r then let members_raw = (List.filter (fun die' -> Nat_big_num.equal die'.die_abbreviation_declaration.ad_tag (tag_encode "DW_TAG_member")) die1.die_children) in Some (Lem_list.map (fun die' -> let cupdie' = (cu,(die1::parents),die') in let mname' = (find_name_of_die d.d_str die') in let typ' = (strict s (find_DW_AT_type_of_die c d cu d.d_str die')) in let mdata_member_location' = ((match atk with | Atk_structure -> Some (strict s (find_natural_attribute_value_of_die c "DW_AT_data_member_location" die')) | Atk_union -> (find_natural_attribute_value_of_die c "DW_AT_data_member_location" die') )) in (cupdie',mname',typ',mdata_member_location')) members_raw) else None) in CT_struct_union( cupdie1, atk, mname, mbyte_size, decl1, members) else if Nat_big_num.equal die1.die_abbreviation_declaration.ad_tag (tag_encode "DW_TAG_enumeration_type") then let mbyte_size = (find_natural_attribute_value_of_die c "DW_AT_byte_size" die1) in let decl1 = ({ decl_file = None; (* TODO *) decl_line = None; (* TODO *) }) in let members = (if r then let members_raw = (List.filter (fun die' -> Nat_big_num.equal die'.die_abbreviation_declaration.ad_tag (tag_encode "DW_TAG_enumerator")) die1.die_children) in Some (Lem_list.map (fun die' -> let cupdie' = (cu,(die1::parents),die') in let mname' = (find_name_of_die d.d_str die') in (*let _ = my_debug5 (s ()) in *) let const_value = (strict s (find_integer_attribute_value_of_die c "DW_AT_const_value" die')) in (*let _ = my_debug5 "ok" in*) (cupdie',mname',const_value)) members_raw) else None) in CT_enumeration( cupdie1, mname, mtyp, mbyte_size, decl1, members) else if Nat_big_num.equal die1.die_abbreviation_declaration.ad_tag (tag_encode "DW_TAG_subroutine_type") then (* let prototyped = strict s (find_flag_attribute_value_of_die "DW_AT_prototyped" die) in*) let prototyped = (find_flag_attribute_value_of_die_default_false "DW_AT_prototyped" die1) in let mresult_type = mtyp in let parameter_types = (let parameter_types_raw = (List.filter (fun die' -> Nat_big_num.equal die'.die_abbreviation_declaration.ad_tag (tag_encode "DW_TAG_formal_parameter")) die1.die_children) in (Lem_list.map (fun die' -> let cupdie' = (cu,(die1::parents),die') in let mname' = (find_name_of_die d.d_str die') in let typ' = (strict s (find_DW_AT_type_of_die c d cu d.d_str die')) in typ') parameter_types_raw)) in let (variable_parameter_list: bool) = (List.exists (fun die' -> Nat_big_num.equal die'.die_abbreviation_declaration.ad_tag (tag_encode "DW_TAG_unspecified_parameters")) die1.die_children) in CT_subroutine( cupdie1, prototyped, mresult_type, parameter_types, variable_parameter_list) else failwith ("analyse_type_info_top didn't recognise tag: " ^ (pphex die1.die_abbreviation_declaration.ad_tag ^ (" for DIE " ^ pp_cupdie3 cupdie1)))) let rec analyse_type_info_deep (d: dwarf) (r:bool(*recurse_into_members*)) cupdie1 : c_type= (let c = (p_context_of_d d) in let (cu,parents,die1) = cupdie1 in let (typ: cupdie c_type_top) = (analyse_type_info_top c (d: dwarf) r cupdie1) in (match typ with | CT_missing cupdie1 -> CT (CT_missing cupdie1) | CT_base( cupdie1, name1, encoding, mbyte_size) -> CT (CT_base( cupdie1, name1, encoding, mbyte_size)) | CT_pointer( cupdie1, mtyp') -> CT (CT_pointer( cupdie1, (Lem.option_map (analyse_type_info_deep d r) mtyp'))) | CT_const( cupdie1, mtyp') -> CT (CT_const( cupdie1, (Lem.option_map (analyse_type_info_deep d r) mtyp'))) | CT_volatile( cupdie1, typ') -> CT (CT_volatile( cupdie1, (analyse_type_info_deep d r typ'))) | CT_restrict( cupdie1, typ') -> CT (CT_restrict( cupdie1, (analyse_type_info_deep d r typ'))) | CT_typedef( cupdie1, name1, typ', decl1) -> CT (CT_typedef( cupdie1, name1, (analyse_type_info_deep d r typ'), decl1)) | CT_array( cupdie1, typ', dims) -> CT (CT_array( cupdie1, (analyse_type_info_deep d r typ'), (Lem_list.map (fun (mcount,msubrange_typ) -> (mcount, (Lem.option_map (analyse_type_info_deep d r) msubrange_typ))) dims))) | CT_struct_union( cupdie1, atk, mname, mbyte_size, decl1, mmembers) -> CT (CT_struct_union( cupdie1, atk, mname, mbyte_size, decl1, (Lem.option_map (fun members -> (Lem_list.map (fun (((cupdie1,mname,typ,mdata_member_location) as am)) -> (cupdie1,mname,(analyse_type_info_deep d false typ),mdata_member_location))members)) mmembers))) | CT_enumeration( cupdie1, mname, mtyp', mbyte_size, decl1, mmembers) -> CT(CT_enumeration( cupdie1, mname, (Lem.option_map (analyse_type_info_deep d r) mtyp'), mbyte_size, decl1, mmembers)) | CT_subroutine( cupdie1, prototyped, mresult_type, parameter_types, variable_parameter_list) -> CT (CT_subroutine( cupdie1, prototyped, (Lem.option_map (analyse_type_info_deep d r) mresult_type), (Lem_list.map (fun typ -> analyse_type_info_deep d r typ) parameter_types), variable_parameter_list)) )) let find_DW_AT_type_of_die_deep d cupdie1 : c_type option= (let c = (p_context_of_d d) in let (cu,parents,die1) = cupdie1 in (match find_reference_attribute_of_die c d cu d.d_str "DW_AT_type" die1 with | None -> None | Some cupdie' -> Some (analyse_type_info_deep d false cupdie') )) let find_DW_AT_type_of_die_deep_using_abstract_origin d cupdie1 : c_type option= (let c = (p_context_of_d d) in let (cu,parents,die1) = cupdie1 in (match find_reference_attribute_using_abstract_origin c d cu d.d_str "DW_AT_type" die1 with | None -> None | Some cupdie' -> Some (analyse_type_info_deep d false cupdie') )) (* analyse and pp C type structure, but without going into the definitions of struct_union or enumeration types *) let pp_struct_union_type_kind atk:string= ((match atk with | Atk_structure -> "struct" | Atk_union -> "union" )) let pp_mbyte_size dict_Show_Show_a mbyte_size:string= ("size:" ^ (match mbyte_size with | Some n -> dict_Show_Show_a.show_method n | None -> "?" )) (* pp the top-level structure of a C type, omitting struct_union-type and enum member definitions*) let pp_type_info_top (ppa:'a->string) (typ: 'a c_type_top) : string= ((match typ with | CT_missing cupdie1 -> "missing at " ^ pp_cupdie cupdie1 | CT_base( cupdie1, name1, encoding, mbyte_size) -> name1 ^ (" (base type, " ^ ((match lookup_aB_a instance_Basic_classes_Eq_Num_natural_dict encoding base_type_attribute_encodings with Some s -> s | None -> Nat_big_num.to_string encoding ) ^ (" " ^ (pp_mbyte_size instance_Show_Show_Num_natural_dict mbyte_size ^ ")")))) | CT_pointer( cupdie1, mtyp') -> "pointer(" ^ ((match mtyp' with | Some typ' -> ppa typ' | None -> "no type" ) ^ ")") | CT_const( cupdie1, mtyp') -> "const(" ^ ((match mtyp' with Some typ'->ppa typ' | None -> "no type" ) ^ ")") | CT_volatile( cupdie1, typ') -> "volatile(" ^ (ppa typ' ^ ")") | CT_restrict( cupdie1, typ') -> "restrict(" ^ (ppa typ' ^ ")") | CT_typedef( cupdie1, name1, typ', decl1) -> "typedef("^(name1^("="^(ppa typ' ^ ")"))) | CT_array( cupdie1, typ', dims) -> ppa typ' ^ String.concat "" (Lem_list.map (fun (mcount,msubrange_typ) -> "["^((match mcount with | Some count -> Nat_big_num.to_string count | None -> "no count" ) ^"]")) dims) | CT_struct_union( cupdie1, atk, mname, mbyte_size, decl1, mmembers) -> pp_struct_union_type_kind atk ^ (" " ^ (((match mname with | Some s -> s | None -> "noname" )) ^ pp_cupdie cupdie1)) | CT_enumeration( cupdie1, mname, mtyp', mbyte_size, decl1, mmembers) -> "enum" ^ (" " ^ (((match mname with | Some s -> s | None -> "noname" )) ^ pp_cupdie cupdie1)) | CT_subroutine( cupdie1, prototyped, mresult_type, parameter_types, variable_parameter_list) -> "subroutine(" ^ ((if prototyped then "prototyped" else "not-prototyped") ^ (" " ^ (((match mresult_type with None -> "no type" | Some result_type -> ppa result_type )) ^ ("(" ^ (String.concat "," ( List.rev_append (List.rev (Lem_list.map ppa parameter_types)) (if variable_parameter_list then ["..."] else [])) ^ ")"))))) )) let rec pp_type_info_deep (ctyp:c_type) : string= (let ppa = pp_type_info_deep in (match ctyp with | CT typ -> pp_type_info_top ppa typ )) let rec pp_type_info_die c (d: dwarf) cupdie1 : string= (let (typ: cupdie c_type_top) = (analyse_type_info_top c (d: dwarf) false cupdie1) in let ppa = (pp_type_info_die c d) in pp_type_info_top ppa typ) let pp_struct_union_type_member c d (am: cupdie struct_union_member) : string list= (let (cupdie1,mname,typ,mdata_member_location) = am in [ " "; ((match mname with | Some s -> s | None -> "noname" )); (" @ " ^ ((match mdata_member_location with None -> "nodatamemberlocation" | Some data_member_location -> Nat_big_num.to_string data_member_location ))); (" : " ^ pp_type_info_die c d typ) ]) let pp_struct_union_type_defn c d cupdie1:string= (let (typ: cupdie c_type_top) = (analyse_type_info_top c (d: dwarf) true cupdie1) in (match typ with | CT_struct_union( cupdie1, atk, mname, mbyte_size, decl1, mmembers) -> ((match mname with | Some s -> s | None -> "noname" )) ^ (" " ^ (pp_cupdie cupdie1 ^ (" " ^ (pp_mbyte_size instance_Show_Show_Num_natural_dict mbyte_size ^ ("\n" ^ pad_rows ((match mmembers with Some members -> (Lem_list.map (pp_struct_union_type_member c d) members) | None -> [] ))))))) | _ -> failwith "pp_struct_union_type_defn called on non-struct_union" )) let pp_struct_union_type_member' (am: c_type struct_union_member) : string list= (let (cupdie1,mname,ctyp,mdata_member_location) = am in [ " "; ((match mname with | Some s -> s | None -> "noname" )); (" @ " ^ ((match mdata_member_location with None -> "nodatamemberlocation" | Some data_member_location -> Nat_big_num.to_string data_member_location ))); (" : " ^ pp_type_info_deep ctyp) ]) let pp_enum_type_member' (em:enumeration_member) : string list= (let (cupdie1,mname,const_value) = em in [ " "; ((match mname with | Some s -> s | None -> "noname" )); (" = " ^ Nat_big_num.to_string const_value) ]) let pp_struct_union_type_defn' (ctyp: c_type) :string= (let preamble mname kind cupdie1 mbyte_size= (((match mname with | Some s -> s | None -> "noname" )) ^ (" " ^ (kind ^ (" " ^ (pp_cupdie cupdie1 ^ (" " ^ pp_mbyte_size instance_Show_Show_Num_natural_dict mbyte_size)))))) in (match ctyp with | CT(CT_struct_union( cupdie1, atk, mname, mbyte_size, decl1, mmembers)) -> preamble mname (pp_struct_union_type_kind atk) cupdie1 mbyte_size ^ ("\n" ^ pad_rows ((match mmembers with Some members -> (Lem_list.map (pp_struct_union_type_member') members) | None -> [["warning: no members list"]] ))) | CT(CT_enumeration( cupdie1, mname, mtyp, mbyte_size, decl1, mmembers)) -> preamble mname "enum" cupdie1 mbyte_size ^ (" " ^ (((match mtyp with Some typ -> pp_type_info_deep typ | None -> "no representation type" )) ^ ("\n" ^ pad_rows ((match mmembers with Some members -> (Lem_list.map (pp_enum_type_member') members) | None -> [["warning: no members list"]] ))))) | _ -> failwith "pp_struct_union_type_defn called on non-struct_union" )) (* match typ with | CT_base cupdie name encoding mbyte_size -> name ^ " (base type, " ^ match lookup_aB_a encoding base_type_attribute_encodings with Just s -> s | Nothing -> show encoding end ^ " " ^ pp_mbyte_size mbyte_size ^ ")" | CT_pointer cupdie mtyp' -> "pointer(" ^ match mtyp' with | Just typ' -> pp_type_info_die c d typ' | Nothing -> "no type" end ^ ")" | CT_const cupdie mtyp' -> "const(" ^ match mtyp' with Just typ'->pp_type_info_die c d typ' | Nothing -> "no type" end ^ ")" | CT_volatile cupdie typ' -> "volatile(" ^ pp_type_info_die c d typ' ^ ")" | CT_restrict cupdie typ' -> "restrict(" ^ pp_type_info_die c d typ' ^ ")" | CT_typedef cupdie name typ' decl -> "typedef("^name^"="^pp_type_info_die c d typ' ^ ")" | CT_array cupdie typ' dims -> pp_type_info_die c d typ' ^ String.concat "" (List.map (fun (mcount,subrange_typ) -> "["^match mcount with | Just count -> show count | Nothing -> "no count" end ^"]") dims) | CT_struct_union cupdie atk mname mbyte_size decl members -> pp_struct_union_type_kind atk ^ " " ^ (match mname with | Just s -> s | Nothing -> "noname" end) ^ pp_cupdie cupdie | CT_enumeration cupdie mname mtyp' mbyte_size decl members -> "enum" ^ " " ^ (match mname with | Just s -> s | Nothing -> "noname" end) ^ pp_cupdie cupdie end *) (* expect the die to have a DW_AT_type, and pp it *) let pp_type_info_die_DW_AT_type c (d: dwarf) cu str die1:string= ((match find_DW_AT_type_of_die_using_abstract_origin c d cu str die1 with | Some (cu',parents',die') -> pp_type_info_die c (d: dwarf) (cu',parents',die') | None -> "DW_AT_abstract origin failed" )) let struct_union_enum_types (d:dwarf) : c_type list= (let cupdies = (find_dies (fun die1 -> Lem_list.elem instance_Basic_classes_Eq_Num_natural_dict die1.die_abbreviation_declaration.ad_tag [tag_encode "DW_TAG_structure_type"; tag_encode "DW_TAG_union_type"; tag_encode "DW_TAG_enumeration_type"]) d) in Lem_list.map (analyse_type_info_deep (d: dwarf) true) cupdies) (* let pp_all_struct_union_enum_types c d : string = String.concat "\n\n" (List.map ((fun (cu,parents,die) -> pp_struct_union_type_defn c d (cu,parents,die))) (struct_union_type_dies d)) *) let pp_all_struct_union_enum_types' d : string= (let ctyps : c_type list = (struct_union_enum_types d) in String.concat "" ((Lem_list.map pp_struct_union_type_defn') ctyps)) (** ************************************************************ *) (** ** analysis of location and frame data for reverse mapping *) (** ************************************************************ *) (** analysis *) (** simple-minded analysis of location *) let analyse_locations_raw c (d: dwarf):string= (let (cuh_default : compilation_unit_header) = (let cu = (myhead d.d_compilation_units) in cu.cu_header) in (* find all DW_TAG_variable and DW_TAG_formal_parameter dies with a DW_AT_name attribute *) let tags = (Lem_list.map tag_encode ["DW_TAG_variable"; "DW_TAG_formal_parameter"]) in let dies : (compilation_unit * ( die list) * die) list = (find_dies (fun die1 -> Lem_list.elem instance_Basic_classes_Eq_Num_natural_dict die1.die_abbreviation_declaration.ad_tag tags && has_attribute "DW_AT_name" die1) d) in String.concat "" (Lem_list.map (fun (cu,parents,die1) -> let ats = (Lem_list.list_combine die1.die_abbreviation_declaration.ad_attribute_specifications die1.die_attribute_values) in let find_ats (s:string)= (myfindNonPure (fun (((at: Nat_big_num.num), (af: Nat_big_num.num)), ((pos: Nat_big_num.num),(av:attribute_value))) -> Nat_big_num.equal (attribute_encode s) at) ats) in let ((_,_),(_,av_name)) = (find_ats "DW_AT_name") in let name1 = ((match av_name with | AV_string bs -> string_of_byte_sequence bs | AV_strp n -> pp_debug_str_entry d.d_str n | _ -> "av_name AV not understood" )) in let ((_,_),(_,av_location)) = (find_ats "DW_AT_location") in let ppd_location = ((match av_location with | AV_exprloc( n, bs) -> " "^(parse_and_pp_operations c cuh_default bs^"\n") | AV_block( n, bs) -> " "^(parse_and_pp_operations c cuh_default bs^"\n") | AV_sec_offset n -> let location_list1 = (myfindNonPure (fun (n',_)->Nat_big_num.equal n' n) d.d_loc) in pp_location_list c cuh_default location_list1 | _ -> "av_location AV not understood" )) in pp_tag_encoding die1.die_abbreviation_declaration.ad_tag ^ (" " ^ (name1 ^ (":\n" ^ (ppd_location ^ "\n")))) ) dies)) (** more proper analysis of locations *) (* TODO: handle this: In a variable entry representing the definition of a variable (that is, with no DW_AT_declaration attribute) if no location attribute is present, or if the location attribute is present but has an empty location description (as described in Section 2.6), the variable is assumed to exist in the source code but not in the executable program (but see number 10, below). In a variable entry representing a non-defining declaration of a variable, the location specified modifies the location specified by the defining declaration and only applies for the scope of the variable entry; if no location is specified, then the location specified in the defining declaration applies. The location of a variable may be further specified with a DW_AT_segment attribute, if appropriate. *) (* if there's a DW_AT_location that's a location list (DW_FORM_sec_offset/AV_sec_offset) : use that for both the range(s) and location; interpret the range(s) wrt the applicable base address of the compilation unit if there's a DW_AT_location that's a location expression (DW_FORM_exprloc/AV_exprloc or DW_block/AV_block), look for the closest enclosing range: - DW_AT_low_pc (AV_addr) and no DW_AT_high_pc or DW_AT_ranges: just the singleton address - DW_AT_low_pc (AV_addr) and DW_AT_high_pc (either an absolute AV_addr or an offset AV_constantN/AV_constant_SLEB128/AV_constantULEB128) : that range - DW_AT_ranges (DW_FORM_sec_offset/AV_sec_offset) : get a range list from .debug_ranges; interpret wrt the applicable base address of the compilation unit - for compilation units: a DW_AT_ranges together with a DW_AT_low_pc to specify the default base address to use in interpeting location and range lists DW_OP_fbreg in location expressions evaluate the DW_AT_frame_base of the closest enclosing function - which is either a location expression or a location list (what happens if the ranges of that location list don't cover where we are?) For each variable and formal parameter that has a DW_AT_name, we'll calculate a list of pairs of a concrete (low,high) range and a location expression. *) let cu_base_address cu:Nat_big_num.num= ((match find_attribute_value "DW_AT_low_pc" cu.cu_die with | Some (AV_addr n) -> n | _ -> (Nat_big_num.of_int 0) (*Nothing*) (*Assert_extra.failwith "no cu DW_AT_low_pc"*) )) let range_of_die c cuh str (dranges: range_list_list) (cu_base_address1: Nat_big_num.num) (die1: die) : ( (Nat_big_num.num * Nat_big_num.num)list)option= ((match (find_attribute_value "DW_AT_low_pc" die1, find_attribute_value "DW_AT_high_pc" die1, find_attribute_value "DW_AT_ranges" die1) with | (Some (AV_addr n), None, None ) -> Some [(n,Nat_big_num.add n( (Nat_big_num.of_int 1)))] (* unclear if this case is used? *) | (Some (AV_addr n1), Some (AV_addr n2), None ) -> Some [(n1,n2)] | (Some (AV_addr n1), Some (AV_constant_ULEB128 n2), None ) -> Some [(n1,Nat_big_num.add n1 n2)] (* should be mod all? *) | (Some (AV_addr n1), Some (AV_constant_SLEB128 i2), None ) -> Some [(n1, Nat_big_num.abs ( Nat_big_num.add( n1) i2))] (* should be mod all? *) | (Some (AV_addr n1), Some (AV_constantN( _, _)), None ) -> failwith "AV_constantN in range_of_die" | (Some (AV_addr n1), Some (AV_block( n, bs)), None ) -> let n2 = (natural_of_bytes c.endianness bs) in Some [(n1,Nat_big_num.add n1 n2)] (* should be mod all? *) (* signed or unsigned interp? *) | (_, None, Some (AV_sec_offset n)) -> let rlis = (snd ((match find_range_list dranges n with Some rlis->rlis | none0 -> failwith ("find_range_list failed on AV_sec_offset n=" ^ (Nat_big_num.to_string n ^ (" for die\n" ^ pp_die c cuh str false( (Nat_big_num.of_int 0)) false die1))) ))) in let nns = (interpret_range_list cu_base_address1 rlis) in Some nns | (None, None, None ) -> None | (_, _, _ ) -> Some [] (*Assert_extra.failwith "unexpected attribute values in closest_enclosing_range"*) )) let range_of_die_d (d:dwarf) cu (die1: die) : ( (Nat_big_num.num * Nat_big_num.num)list)option= (let c = (p_context_of_d d) in range_of_die c cu.cu_header d.d_str d.d_ranges (cu_base_address cu) die1) let entry_address (die1:die) : Nat_big_num.num option= ((match (find_attribute_value "DW_AT_low_pc" die1, find_attribute_value "DW_AT_entry_pc" die1) with | (_, Some (AV_addr n)) -> Some n | (Some (AV_addr n), _) -> Some n | (None,None) -> None )) let rec closest_enclosing_range c cuh str (dranges: range_list_list) (cu_base_address1: Nat_big_num.num) (parents: die list) : ( (Nat_big_num.num * Nat_big_num.num)list)option= ((match parents with | [] -> None | die1::parents' -> (match range_of_die c cuh str dranges cu_base_address1 die1 with | ((Some x) as y) -> y | None -> closest_enclosing_range c cuh str dranges cu_base_address1 parents' ) )) (* If one of the DW_FORM_data<n> forms is used to represent a signed or unsigned integer, it can be hard for a consumer to discover the context necessary to determine which interpretation is intended. Producers are therefore strongly encouraged to use DW_FORM_sdata or DW_FORM_udata for signed and unsigned integers respectively, rather than DW_FORM_data<n>. no kidding - if we get an AV_constantN for DW_AT_high_pc, should it be interpreted as signed or unsigned? *) let rec closest_enclosing_frame_base dloc (base_address1: Nat_big_num.num) (parents: die list) : attribute_value option= ((match parents with | [] -> None | die1::parents' -> (match find_attribute_value "DW_AT_frame_base" die1 with | Some av -> Some av | None -> closest_enclosing_frame_base dloc base_address1 parents' ) )) let interpreted_location_of_die c cuh str (dloc: location_list_list) (dranges: range_list_list) (base_address1: Nat_big_num.num) (parents: die list) (die1: die) : ( (Nat_big_num.num * Nat_big_num.num * single_location_description)list)option= ( (* for a simple location expression bs, we look in the enclosing die tree to find the associated pc range *)let location bs= ((match closest_enclosing_range c cuh str dranges base_address1 (die1::parents) with | Some nns -> Some (Lem_list.map (fun (n1,n2) -> (n1,n2,bs)) nns) | None -> (* if there is no such range, we take the full 0 - 0xfff.fff range*) Some [( (Nat_big_num.of_int 0),(arithmetic_context_of_cuh cuh).ac_max,bs)] )) in (match find_attribute_value "DW_AT_location" die1 with | Some (AV_exprloc( n, bs)) -> location bs | Some (AV_block( n, bs)) -> location bs (* while for a location list, we take the associated pc range from each element of the list *) | Some (AV_sec_offset n) -> let (_,llis) = (find_location_list dloc n) in Some (interpret_location_list base_address1 llis) | None -> None )) (*val analyse_locations : dwarf -> analysed_location_data*) let analyse_locations (d: dwarf) : analysed_location_data= (let c = (p_context_of_d d) in (* let (cuh_default : compilation_unit_header) = let cu = myhead d.d_compilation_units in cu.cu_header in*) (* find all DW_TAG_variable and DW_TAG_formal_parameter dies with a DW_AT_location attribute and either a DW_AT_name or a DW_abstract_origin *) (* (leaving formal parameters of inlined routines with a DW_AT_const_value to the future) *) let tags = (Lem_list.map tag_encode ["DW_TAG_variable"; "DW_TAG_formal_parameter"]) in let dies : (compilation_unit * ( die list) * die) list = (find_dies (fun die1 -> Lem_list.elem instance_Basic_classes_Eq_Num_natural_dict die1.die_abbreviation_declaration.ad_tag tags && ((has_attribute "DW_AT_name" die1 || has_attribute "DW_AT_abstract_origin" die1) && has_attribute "DW_AT_location" die1)) d) in Lem_list.map (fun ((((cu:compilation_unit), (parents: die list), (die1: die)) as x)) -> let base_address1 = (cu_base_address cu) in let interpreted_locations : ( (Nat_big_num.num * Nat_big_num.num * single_location_description)list)option = (interpreted_location_of_die c cu.cu_header d.d_str d.d_loc d.d_ranges base_address1 parents die1) in (x,interpreted_locations) ) dies) let pp_analysed_locations1 c cuh (nnls: (Nat_big_num.num * Nat_big_num.num * single_location_description) list) : string= (String.concat "" (Lem_list.map (fun (n1,n2,bs) -> " " ^ (pphex n1 ^ (" " ^ (pphex n2 ^ (" " ^ parse_and_pp_operations c cuh bs))))) nnls)) let pp_analysed_locations2 c cuh mnnls:string= ((match mnnls with | Some nnls -> pp_analysed_locations1 c cuh nnls | None -> " <no locations>" )) (* let pp_analysed_locations3 c d str (als: analysed_location_data) : string = pad_rows (List.map (fun ((cu,parents,die),mnnls) -> [" ";pp_die_abbrev_var c cu.cu_header str 0 false parents die ^ pp_type_info_die_DW_AT_type c d cu cu.cu_header str die; pp_analysed_locations2 c cu.cu_header mnnls] ) als ) let pp_analysed_location_data (d: dwarf) (als: analysed_location_data) : string = let c = p_context_of_d d in (* let cu = myhead d.d_compilation_units in let (cuh_default : compilation_unit_header) = cu.cu_header in *) pp_analysed_locations3 c (*HACK*) d d.d_str als *) let pp_analysed_locations3 c d str (removed:bool) (als: analysed_location_data) : (bool(*removed?*) * (string(*name*) * string(*offset*) * string(*kind*)) * (unit->string)(*string*)(*type*) * string(*locations*) * (unit->string)(*parents*)) list= (Lem_list.map (fun ((cu,parents,die1),mnnls) -> (removed, pp_die_abbrev_var c d cu str false parents die1, (*4.5s for only this*) (fun () -> pp_type_info_die_DW_AT_type c d cu str die1), (*12.2s for this and above*) pp_analysed_locations2 c cu.cu_header mnnls, (*12.4s for this and above*) (fun () -> pp_die_abbrev_var_parents c d cu str parents)) (*14.4s for this and above*) ) als) let pp_analysed_locations3_diff c d str (als_old: analysed_location_data) (als_new: analysed_location_data) : (bool(*removed?*) * (string(*name*) * string(*offset*) * string(*kind*)) * (unit->string)(*type*) * string(*locations*) *(unit->string)(*parents*)) list= ( (* maybe alpha sort these? *)let ppd_old = (pp_analysed_locations3 c d str true als_old) in let ppd_new = (pp_analysed_locations3 c d str false als_new) in (* the old entries that don't have a same-name new entry *) let ppd_gone = (List.filter (fun (removed,(name1,offset,kind),typ,locs,parents) -> not (List.exists (fun (removed',(name',offset',kind'),typ',locs',parents') -> name1=name') ppd_new)) ppd_old) in (* the new entries, each preceded by any same-name old entries (this will display strangely if there's any variable shadowing...) *) let ppd_upd = (List.concat (Lem_list.mapMaybe (fun (((removed,((name1,offset,kind) as y),typ,locs,parents) as x)) -> let same_name_old = (List.filter (fun (removed',(name',offset',kind'),typ',locs',parents') ->(Lem.pair_equal (=) (=) (name1,offset)(name',offset'))) ppd_old) in (match same_name_old with | [((removed',((name',offset',kind') as y'),typ',locs',parents') as x')] -> if (Lem.pair_equal (tripleEqual instance_Basic_classes_Eq_string_dict instance_Basic_classes_Eq_string_dict instance_Basic_classes_Eq_string_dict) (=) (y,(*typ,*)locs) (y',(*typ',*)locs')) then None else Some ( List.rev_append (List.rev same_name_old) [x]) | _ -> Some ( List.rev_append (List.rev same_name_old) [x]) )) ppd_new)) in List.rev_append (List.rev ppd_gone) ppd_upd) let pp_analysed_location_format (xs : (bool(*removed?*) * (string(*name*) * string(*offset*) * string(*kind*)) * (unit->string)(*string*)(*type*) * string(*locations*) * (unit->string)(*parents*)) list):string= (pad_rows (Lem_list.map (fun (((removed,(name1,offset,kind),typ,locs,parents) as x)) -> [ ((if removed then "-" else " ") ^ (name1 ^ (" (" ^ (offset ^ ("," ^ (kind ^ (") " ^ typ ()))))))); locs; parents ()] ) xs )) let pp_analysed_location_data (d: dwarf) (als: analysed_location_data) : string= (let c = (p_context_of_d d) in (* let cu = myhead d.d_compilation_units in let (cuh_default : compilation_unit_header) = cu.cu_header in *) pp_analysed_location_format (pp_analysed_locations3 c (*HACK*) d d.d_str false als)) let pp_analysed_location_data_diff (d: dwarf) (als_old: analysed_location_data) (als_new: analysed_location_data) : string= (let c = (p_context_of_d d) in (* let cu = myhead d.d_compilation_units in let (cuh_default : compilation_unit_header) = cu.cu_header in *) pp_analysed_location_format (pp_analysed_locations3_diff c (*HACK*) d d.d_str als_old als_new)) let pp_analysed_location_data_at_pc (d: dwarf) (alspc: analysed_location_data_at_pc) : string= (String.concat "" (Lem_list.map (fun ((cu,parents,die1),(n1,n2,sld,esl)) -> " " ^ (let name1 = ((match find_name_of_die d.d_str die1 with | Some s -> s | None -> "<no name>\n" )) in (match esl with | Success sl -> name1 ^ (" @ " ^ (pp_single_location sl ^"\n")) | Fail e -> name1 ^ (" @ " ^ ("<fail: " ^ (e ^ ">\n"))) )) ) alspc)) (*val analysed_locations_at_pc : evaluation_context -> dwarf_static -> natural -> analysed_location_data_at_pc*) let analysed_locations_at_pc (ev) (ds: dwarf_static) (pc: Nat_big_num.num) : analysed_location_data_at_pc= (let c : p_context = ({ endianness = (ds.ds_dwarf.d_endianness) }) in let xs = (Lem_list.mapMaybe (fun (cupd,mnns) -> (match mnns with | None -> None | Some nns -> let nns' = (List.filter (fun (n1,n2,sld) -> Nat_big_num.greater_equal pc n1 && Nat_big_num.less pc n2) nns) in (match nns' with | [] -> None | _ -> Some (cupd,nns') ) )) ds.ds_analysed_location_data) in List.concat (Lem_list.map (fun ((cu,parents,die1),nns) -> let ac = (arithmetic_context_of_cuh cu.cu_header) in let base_address1 = (cu_base_address cu) in let mfbloc : attribute_value option = (closest_enclosing_frame_base ds.ds_dwarf.d_loc base_address1 parents) in Lem_list.map (fun (n1,n2,sld) -> let el : single_location error = (evaluate_location_description_bytes c ds.ds_dwarf.d_loc ds.ds_evaluated_frame_info cu.cu_header ac ev mfbloc pc sld) in ((cu,parents,die1),(n1,n2,sld,el)) ) nns ) xs)) (*val names_of_address : dwarf -> analysed_location_data_at_pc -> natural -> list string*) let names_of_address (d: dwarf) (alspc: analysed_location_data_at_pc) (address: Nat_big_num.num) : string list= (Lem_list.mapMaybe (fun ((cu,parents,die1),(n1,n2,sld,esl)) -> (match esl with | Success (SL_simple (SL_memory_address a)) -> if Nat_big_num.equal a address then (match find_name_of_die d.d_str die1 with | Some s -> Some s | None -> None ) else None | Success _ -> None (* just suppress? *) | Fail e -> None (* just suppress? *) ) ) alspc) (*val filtered_analysed_location_data : dwarf_static -> natural -> analysed_location_data*) let filtered_analysed_location_data ds pc:((compilation_unit*(die)list*die)*((Nat_big_num.num*Nat_big_num.num*Byte_sequence_wrapper.byte_sequence)list)option)list= (Lem_list.mapMaybe (fun (cupd,mnns) -> (match mnns with | None -> None | Some nns -> let nns' = (List.filter (fun (n1,n2,sld) -> Nat_big_num.greater_equal pc n1 && Nat_big_num.less pc n2) nns) in (match nns' with | [] -> None (*Just (cupd,Nothing)*) | _::_ -> Some (cupd,Some nns') ) )) ds.ds_analysed_location_data) (** ********************************************************************** *) (** ** estimate source-file line extents of each (non-inlined) subprogram *) (** ********************************************************************** *) (* The line number info associates source-file line numbers to instruction addresses, but doesn't identify which subprogram those line numbers come from. To recover that, we can use the DW_TAG_subprogram die DW_AT_decl_file and DW_AT_decl_line info, which gives the start of each subprogram. For C, function definitions cannot be nested, so we can estimate their line-number extents as from their start to the start of the next. Note that this might be wrong if there are (eg) macro definitions between C functions. Because of the lack of nesting, for C, just taking the top-level DW_TAG_subprogram dies of each compilation unit should be basically ok, and seems also to exclude inlined instances of subprograms (which otherwise we could exclude by discarding any with an abstract origin). However, those top-level subprograms are not necessarily all from the "primary" file of the subprogram, and conceivably some functions in the file might not be included in that compilation unit but appear in another. We'll therefore take all top-level subprograms from all compilation units, partition by file (up to equality of (compilation directory, include directory, and path)), and then sort. This assumes that the directory and path strings from the line number info for different compilation units are nicely comparable. We also have to identify the compilation unit referred to by a line number file entry that's been reported from the line-number info. The DW_TAG_compile_unit DW_AT_name appears to be the path concatentation (inserting a "/", not just the string concatenation) of the lnfe_directory_index's string and the lnfe_path of one the lnfe's of the line number header pointed to by the compilation unit's DW_AT_stmt_list, but not necessarily any particular such lnfe.*) let subprogram_line_extents_compilation_unit d cu : (string * unpacked_file_entry * Nat_big_num.num) list= (let c = (p_context_of_d d) in let subprogram_dies = (List.filter (fun die' -> Nat_big_num.equal die'.die_abbreviation_declaration.ad_tag (tag_encode "DW_TAG_subprogram")) cu.cu_die.die_children) in let lnp = (line_number_program_of_compilation_unit d cu) in let lnh = (lnp.lnp_header) in Lem_list.mapMaybe (fun die1 -> (match (find_name_of_die d.d_str die1, find_natural_attribute_value_of_die c "DW_AT_decl_file" die1, find_natural_attribute_value_of_die c "DW_AT_decl_line" die1) with | (Some name1, Some file, Some line) -> Some (name1, unpack_file_entry lnh file, line) | (_,_,_) -> None )) subprogram_dies) (* lookup in an association list and also return the list with that entry (if any) removed *) (*val extract : forall 'b 'c. Eq 'b => 'b -> list ('b * 'c) -> (maybe 'c) * list ('b * 'c)*) let rec extract dict_Basic_classes_Eq_b y yzs:'c option*('b*'c)list= ((match yzs with | [] -> (None, []) | (y',z')::yzs' -> if dict_Basic_classes_Eq_b.isEqual_method y' y then (Some z', yzs') else let (result,yzs'') = (extract dict_Basic_classes_Eq_b y yzs') in (result, ((y',z')::yzs'')) )) (* partition a list by the result of f, removing duplicates and sorting each partition by lt *) (*val partitionby: forall 'a 'b. Eq 'a , Eq 'b => ('a -> 'b) -> ('a -> 'a -> bool) -> list 'a -> list ('b * list 'a) -> list ('b * list 'a)*) let rec partitionby dict_Basic_classes_Eq_a dict_Basic_classes_Eq_b f lt xs acc:('b*'a list)list= ((match xs with | [] -> acc | x::xs' -> let y = (f x) in let (result, acc') = (extract dict_Basic_classes_Eq_b y acc) in let acc'' = ((match result with | Some xs'' -> if Lem_list.elem dict_Basic_classes_Eq_a x xs'' then acc else ((y, Lem_sorting.insertBy lt x xs'')::acc') | None -> (y,[x])::acc )) in partitionby dict_Basic_classes_Eq_a dict_Basic_classes_Eq_b f lt xs' acc'' )) let subprogram_line_extents d : (unpacked_file_entry * (string * unpacked_file_entry * Nat_big_num.num) list ) list= (let subprograms : (string * unpacked_file_entry * Nat_big_num.num) list = (List.concat (map (subprogram_line_extents_compilation_unit d) d.d_compilation_units)) in partitionby (instance_Basic_classes_Eq_tup3_dict instance_Basic_classes_Eq_string_dict (instance_Basic_classes_Eq_tup3_dict (instance_Basic_classes_Eq_Maybe_maybe_dict instance_Basic_classes_Eq_string_dict) (instance_Basic_classes_Eq_Maybe_maybe_dict instance_Basic_classes_Eq_string_dict) instance_Basic_classes_Eq_string_dict) instance_Basic_classes_Eq_Num_natural_dict) (instance_Basic_classes_Eq_tup3_dict (instance_Basic_classes_Eq_Maybe_maybe_dict instance_Basic_classes_Eq_string_dict) (instance_Basic_classes_Eq_Maybe_maybe_dict instance_Basic_classes_Eq_string_dict) instance_Basic_classes_Eq_string_dict) (fun (name1, ufe, line) -> ufe) (fun (name1,ufe,line) -> fun (name',ufe',line') -> Nat_big_num.less line line') subprograms []) let pp_subprograms dict_Show_Show_a sles:string= (String.concat "\n" (Lem_list.map (fun (ufe,sles') -> pp_ufe ufe ^ ("\n" ^ String.concat "" (Lem_list.map (fun (name1, ufe, line) -> " " ^ ( dict_Show_Show_a.show_method line ^ (" " ^ (name1 ^ "\n")))) sles'))) sles)) let rec find_by_line dict_Basic_classes_Ord_b line sles line_last name_last:'a= ((match sles with | [] -> name_last | (name',ufe',line') :: sles' -> if dict_Basic_classes_Ord_b.isGreaterEqual_method line line_last && dict_Basic_classes_Ord_b.isLess_method line line' then name_last else find_by_line dict_Basic_classes_Ord_b line sles' line' name' )) let subprogram_at_line subprogram_line_extents1 (ufe:unpacked_file_entry) (line:Nat_big_num.num) : string= ((match (lookupBy (tripleEqual (instance_Basic_classes_Eq_Maybe_maybe_dict instance_Basic_classes_Eq_string_dict) (instance_Basic_classes_Eq_Maybe_maybe_dict instance_Basic_classes_Eq_string_dict) instance_Basic_classes_Eq_string_dict) ufe subprogram_line_extents1) with | None -> "no matching unpacked_file_entry" | Some sles -> find_by_line instance_Basic_classes_Ord_Num_natural_dict line sles( (Nat_big_num.of_int 0)) "file preamble" )) (** ************************************************************ *) (** ** pull out subprograms *) (** ************************************************************ *) (* val analyse_subprograms : dwarf -> analysed_location_data let analyse_subprograms (d: dwarf) : analysed_location_data = let c = p_context_of_d d in let (cuh_default : compilation_unit_header) = let cu = myhead d.d_compilation_units in cu.cu_header in (* find all DW_TAG_subprogram dies *) let tags = List.map tag_encode ["DW_TAG_subprogram"] in let dies : list (compilation_unit * (list die) * die) = find_dies (fun die -> List.elem die.die_abbreviation_declaration.ad_tag tags && has_attribute "DW_AT_name" die && has_attribute "DW_AT_location" die) d in List.map (fun (((cu:compilation_unit), (parents: list die), (die: die)) as x) -> let name = match find_name_of_die d.d_str die with | Just s -> s | Nothing -> "<no name>\n" end in let entry_point : maybe attribute_value = match find_attribute_value "DW_AT_entry_pc" die with | Nothing -> Nothing | let base_address = cu_base_address cu in let interpreted_locations : maybe (list (natural * natural * single_location_description)) = interpreted_location_of_die c cuh_default d.d_loc d.d_ranges base_address parents die in (x,interpreted_locations) ) dies *) (** ************************************************************ *) (** ** evaluation of line-number info *) (** ************************************************************ *) let initial_line_number_registers (lnh: line_number_header) : line_number_registers= ({ lnr_address =( (Nat_big_num.of_int 0)); lnr_op_index =( (Nat_big_num.of_int 0)); lnr_file =( (Nat_big_num.of_int 1)); lnr_line =( (Nat_big_num.of_int 1)); lnr_column =( (Nat_big_num.of_int 0)); lnr_is_stmt = (lnh.lnh_default_is_stmt); lnr_basic_block = false; lnr_end_sequence = false; lnr_prologue_end = false; lnr_epilogue_begin = false; lnr_isa =( (Nat_big_num.of_int 0)); lnr_discriminator =( (Nat_big_num.of_int 0)); }) let evaluate_line_number_operation (lnh: line_number_header) ((s: line_number_registers), (lnrs: line_number_registers list)) (lno: line_number_operation) : line_number_registers * line_number_registers list= (let new_address s operation_advance= (Nat_big_num.add s.lnr_address (Nat_big_num.mul lnh.lnh_minimum_instruction_length (Nat_big_num.div( Nat_big_num.add s.lnr_op_index operation_advance)lnh.lnh_maximum_operations_per_instruction))) in let new_op_index s operation_advance= (Nat_big_num.modulus ( Nat_big_num.add s.lnr_op_index operation_advance) lnh.lnh_maximum_operations_per_instruction) in (match lno with | DW_LN_special adjusted_opcode -> let operation_advance = (Nat_big_num.div adjusted_opcode lnh.lnh_line_range) in let line_increment = (Nat_big_num.add lnh.lnh_line_base (( Nat_big_num.modulus adjusted_opcode lnh.lnh_line_range))) in let s' = ({ s with lnr_line = (partialNaturalFromInteger ( Nat_big_num.add( s.lnr_line) line_increment)); lnr_address = (new_address s operation_advance); lnr_op_index = (new_op_index s operation_advance); }) in let lnrs' = (s'::lnrs) in let s'' = ({ s' with lnr_basic_block = false; lnr_prologue_end = false; lnr_epilogue_begin = false; lnr_discriminator =( (Nat_big_num.of_int 0)); }) in (s'', lnrs') | DW_LNS_copy -> let lnrs' = (s::lnrs) in let s' = ({ s with lnr_basic_block = false; lnr_prologue_end = false; lnr_epilogue_begin = false; lnr_discriminator =( (Nat_big_num.of_int 0)); }) in (s', lnrs') | DW_LNS_advance_pc operation_advance -> let s' = ({ s with lnr_address = (new_address s operation_advance); lnr_op_index = (new_op_index s operation_advance); }) in (s', lnrs) | DW_LNS_advance_line line_increment -> let s' = ({ s with lnr_line = (partialNaturalFromInteger ( Nat_big_num.add( s.lnr_line) line_increment)) }) in (s', lnrs) | DW_LNS_set_file n -> let s' = ({ s with lnr_file = n }) in (s', lnrs) | DW_LNS_set_column n -> let s' = ({ s with lnr_column = n }) in (s', lnrs) | DW_LNS_negate_stmt -> let s' = ({ s with lnr_is_stmt = (not s.lnr_is_stmt) }) in (s', lnrs) | DW_LNS_set_basic_block -> let s' = ({ s with lnr_basic_block = true }) in (s', lnrs) | DW_LNS_const_add_pc -> let opcode =( (Nat_big_num.of_int 255)) in let adjusted_opcode = (Nat_big_num.sub_nat opcode lnh.lnh_opcode_base) in let operation_advance = (Nat_big_num.div adjusted_opcode lnh.lnh_line_range) in let s' = ({ s with lnr_address = (new_address s operation_advance); lnr_op_index = (new_op_index s operation_advance); }) in (s', lnrs) | DW_LNS_fixed_advance_pc n -> let s' = ({ s with lnr_address = (Nat_big_num.add s.lnr_address n); lnr_op_index =( (Nat_big_num.of_int 0)); }) in (s', lnrs) | DW_LNS_set_prologue_end -> let s' = ({ s with lnr_prologue_end = true }) in (s', lnrs) | DW_LNS_set_epilogue_begin -> let s' = ({ s with lnr_epilogue_begin = true }) in (s', lnrs) | DW_LNS_set_isa n -> let s' = ({ s with lnr_isa = n }) in (s', lnrs) | DW_LNE_end_sequence -> let s' = ({ s with lnr_end_sequence = true }) in let lnrs' = (s' :: lnrs) in let s'' = (initial_line_number_registers lnh) in (s'', lnrs') | DW_LNE_set_address n -> let s' = ({ s with lnr_address = n; lnr_op_index =( (Nat_big_num.of_int 0)); }) in (s', lnrs) | DW_LNE_define_file( s, n1, n2, n3) -> failwith "DW_LNE_define_file not implemented" (*TODO: add to file list in header - but why is this in the spec? *) | DW_LNE_set_discriminator n -> let s' = ({ s with lnr_discriminator = n }) in (s', lnrs) )) let rec evaluate_line_number_operations (lnh: line_number_header) ((s: line_number_registers), (lnrs: line_number_registers list)) (lnos: line_number_operation list) : line_number_registers * line_number_registers list= ((match lnos with | [] -> (s,lnrs) | lno :: lnos' -> let (s',lnrs') = (evaluate_line_number_operation lnh (s,lnrs) lno) in evaluate_line_number_operations lnh (s',lnrs') lnos' )) let evaluate_line_number_program (lnp:line_number_program) : line_number_registers list= (List.rev (snd (evaluate_line_number_operations lnp.lnp_header ((initial_line_number_registers lnp.lnp_header),[]) lnp.lnp_operations))) let evaluated_line_info_of_compilation_unit d cu evaluated_line_info1:'a= (let c = (p_context_of_d d) in let offset = (line_number_offset_of_compilation_unit c cu) in (match Lem_list.list_find_opt (fun (lnh,lnrs) -> Nat_big_num.equal lnh.lnh_offset offset) evaluated_line_info1 with | None -> failwith "compilation unit line number offset not found" | Some (lnh,lnrs) ->lnrs )) let pp_line_number_registers lnr:string= ("" ^ ("address = " ^ (pphex lnr.lnr_address ^ ("\n" ^ ("op_index = " ^ (Nat_big_num.to_string lnr.lnr_op_index ^ ("\n" ^ ("file = " ^ (Nat_big_num.to_string lnr.lnr_file ^ ("\n" ^ ("line = " ^ (Nat_big_num.to_string lnr.lnr_line ^ ("\n" ^ ("column = " ^ (Nat_big_num.to_string lnr.lnr_column ^ ("\n" ^ ("is_stmt = " ^ (string_of_bool lnr.lnr_is_stmt ^ ("\n" ^ ("basic_block = " ^ (string_of_bool lnr.lnr_basic_block ^ ("\n" ^ ("end_sequence = " ^ (string_of_bool lnr.lnr_end_sequence ^ ("\n" ^ ("prologue_end = " ^ (string_of_bool lnr.lnr_prologue_end ^ ("\n" ^ ("epilogue_begin = " ^ (string_of_bool lnr.lnr_epilogue_begin ^ ("\n" ^ ("isa = " ^ (Nat_big_num.to_string lnr.lnr_isa ^ ("\n" ^ ("discriminator = " ^ (pphex lnr.lnr_discriminator ^ "\n")))))))))))))))))))))))))))))))))))) let pp_line_number_registers_tight lnr : string list= ([ pphex lnr.lnr_address ; Nat_big_num.to_string lnr.lnr_op_index ; Nat_big_num.to_string lnr.lnr_file ; Nat_big_num.to_string lnr.lnr_line ; Nat_big_num.to_string lnr.lnr_column ; string_of_bool lnr.lnr_is_stmt ; string_of_bool lnr.lnr_basic_block ; string_of_bool lnr.lnr_end_sequence ; string_of_bool lnr.lnr_prologue_end ; string_of_bool lnr.lnr_epilogue_begin ; Nat_big_num.to_string lnr.lnr_isa ; pphex lnr.lnr_discriminator ]) let pp_line_number_registerss lnrs:string= (pad_rows ( ["address"; "op_index"; "file"; "line"; "column"; "is_stmt"; "basic_block"; "end_sequence"; "prologue_end"; "epilogue_begin"; "isa"; "discriminator"] :: (Lem_list.map pp_line_number_registers_tight lnrs) )) let pp_evaluated_line_info (eli: evaluated_line_info) : string= (String.concat "\n" (Lem_list.map (fun (lnh,lnrs) -> pp_line_number_header lnh ^ ("\n" ^ pp_line_number_registerss lnrs)) eli)) (* readef example: Decoded dump of debug contents of section .debug_line: CU: /var/local/stephen/work/devel/rsem/ppcmem2/system/tests-adhoc/simple-malloc/test-concurrent.c: File name Line number Starting address test-concurrent.c 11 0x400144 test-concurrent.c 12 0x40014c test-concurrent.c 13 0x400154 test-concurrent.c 14 0x400158 test-concurrent.c 17 0x400160 /var/local/stephen/work/devel/rsem/ppcmem2/system/tests-adhoc/simple-malloc/../thread_start_aarch64.h: thread_start_aarch64.h 34 0x400168 thread_start_aarch64.h 36 0x400174 /var/local/stephen/work/devel/rsem/ppcmem2/system/tests-adhoc/simple-malloc/test-concurrent.c: test-concurrent.c 19 0x400174 test-concurrent.c 20 0x40017c test-concurrent.c 22 0x400180 CU: /var/local/stephen/work/devel/rsem/ppcmem2/system/tests-adhoc/simple-malloc/malloc.c: ... *) let source_lines_of_address (ds:dwarf_static) (a: Nat_big_num.num) : ( unpacked_file_entry * Nat_big_num.num * line_number_registers * string (*function*)) list= (List.concat (Lem_list.map (fun (lnh, lnrs) -> myfiltermaybe (fun lnr -> if Nat_big_num.equal a lnr.lnr_address && not lnr.lnr_end_sequence then Some (unpack_file_entry lnh lnr.lnr_file, lnr.lnr_line, lnr, subprogram_at_line ds.ds_subprogram_line_extents (unpack_file_entry lnh lnr.lnr_file) lnr.lnr_line) else None) lnrs ) ds.ds_evaluated_line_info )) (** ************************************************************ *) (** ** collecting all the statically calculated analysis info *) (** ************************************************************ *) (*val extract_dwarf_static : elf_file -> maybe dwarf_static*) let extract_dwarf_static f1:(dwarf_static)option= ((match extract_dwarf f1 with | None -> None | Some dwarf1 -> (*let _ = my_debug5 (pp_dwarf dwarf) in *) let ald : analysed_location_data = (analyse_locations dwarf1) in let efi : evaluated_frame_info = (evaluate_frame_info dwarf1) in let eli : evaluated_line_info = (Lem_list.map (fun lnp -> (lnp.lnp_header, evaluate_line_number_program lnp)) dwarf1.d_line_info) in let sle = (subprogram_line_extents dwarf1) in let ds = ({ ds_dwarf = dwarf1; ds_analysed_location_data = ald; ds_evaluated_frame_info = efi; ds_evaluated_line_info = eli; ds_subprogram_line_extents = sle; }) in Some ds )) (** ************************************************************ *) (** ** collect simple die tree view *) (** ************************************************************ *) let decl_of_die d subprogram_line_extents1 cu die1 : (unpacked_file_entry * int (*line*) * string (*subprogram name*))option= (let c = (p_context_of_d d) in let lnp = (line_number_program_of_compilation_unit d cu) in let lnh = (lnp.lnp_header) in (match (find_natural_attribute_value_of_die c "DW_AT_decl_file" die1, find_natural_attribute_value_of_die c "DW_AT_decl_line" die1) with | (Some file, Some line) -> let ufe = (unpack_file_entry lnh file) in let subprogram_name = (subprogram_at_line subprogram_line_extents1 ufe line) in Some (ufe, Nat_big_num.to_int line, subprogram_name) | (_,_) -> None )) let call_site_of_die d subprogram_line_extents1 cu die1 : (unpacked_file_entry * int (*line*) * string (*subprogram name*))option= (let c = (p_context_of_d d) in let lnp = (line_number_program_of_compilation_unit d cu) in let lnh = (lnp.lnp_header) in (match (find_natural_attribute_value_of_die c "DW_AT_call_file" die1, find_natural_attribute_value_of_die c "DW_AT_call_line" die1) with | (Some file, Some line) -> let ufe = (unpack_file_entry lnh file) in let subprogram_name = (subprogram_at_line subprogram_line_extents1 ufe line) in Some (ufe, Nat_big_num.to_int line, subprogram_name) | (_,_) -> None )) let mk_sdt_unspecified_parameter (d:dwarf) subprogram_line_extents1 cu parents die1 : sdt_unspecified_parameter option= (if not(Lem_list.elem instance_Basic_classes_Eq_Num_natural_dict die1.die_abbreviation_declaration.ad_tag [tag_encode "DW_TAG_unspecified_parameters"]) then None else Some ()) (* let strict_msvfp x e s z = match x with | Just y -> y | Nothing -> Assert_extra.failwith ("mk_sdt_variable_or_formal_parameter strict failure " ^ e ^ " on \n" ^ s z ^ "\n") end *) let rec mk_sdt_variable_or_formal_parameter (d:dwarf) subprogram_line_extents1 cu parents die1 : sdt_variable_or_formal_parameter option= (if not(Lem_list.elem instance_Basic_classes_Eq_Num_natural_dict die1.die_abbreviation_declaration.ad_tag [tag_encode "DW_TAG_variable"; tag_encode "DW_TAG_formal_parameter"]) then None else let c = (p_context_of_d d) in (* let s (cu,parents,die) = pp_die c cu.cu_header d.d_str true 0 false die in*) let cupdie1 = (cu,parents,die1) in let kind = (if Nat_big_num.equal die1.die_abbreviation_declaration.ad_tag (tag_encode "DW_TAG_variable") then SVPK_var else if Nat_big_num.equal die1.die_abbreviation_declaration.ad_tag (tag_encode "DW_TAG_formal_parameter") then SVPK_param else failwith ("unreachable bad kind")) in (* find aDW_AT_specification die, if it exists. TODO: how should this interact with abstract origins? *) let mcupdie_spec = (find_reference_attribute_of_die c d cu d.d_str "DW_AT_specification" die1) in Some ( { svfp_cupdie = cupdie1; svfp_kind = kind; (* svfp_name = strict_msvfp (find_name_of_die_using_abstract_origin_and_spec c d cu d.d_str die mcupdie_spec) "no name" s cupdie;*) svfp_name = ((match (find_name_of_die_using_abstract_origin_and_spec c d cu d.d_str die1 mcupdie_spec) with Some name1 -> name1 | None -> "no name" )); svfp_type = (*strict_msvfp*) (find_DW_AT_type_of_die_deep_using_abstract_origin d cupdie1) (*"no type" s cupdie*); svfp_abstract_origin = ((match find_reference_attribute_of_die c d cu d.d_str "DW_AT_abstract_origin" die1 with | None -> None | Some (((cu',parents',die') as cupdie')) -> mk_sdt_variable_or_formal_parameter d subprogram_line_extents1 cu' parents' die' )); svfp_const_value = (find_integer_attribute_value_of_die c "DW_AT_const_value" die1); svfp_external = ((match find_flag_attribute_value_of_die_using_abstract_origin d "DW_AT_external" cupdie1 with Some b -> b | None -> false )); svfp_declaration = ((match find_flag_attribute_value_of_die_using_abstract_origin d "DW_AT_declaration" cupdie1 with Some b -> b | None -> false )); svfp_locations = (let base_address1 = (cu_base_address cu) in let interpreted_locations : ( (Nat_big_num.num * Nat_big_num.num * single_location_description)list)option = (interpreted_location_of_die c cu.cu_header d.d_str d.d_loc d.d_ranges base_address1 parents die1) in Lem.option_map (fun nnbss -> Lem_list.map (fun (n1,n2,bs) -> (n1,n2,parse_operations_bs c cu.cu_header bs)) nnbss) interpreted_locations); svfp_decl = (decl_of_die d subprogram_line_extents1 cu die1); } )) let strict_mss x e s z:'a= ((match x with | Some y -> y | None -> failwith ("mk_sdt_subroutine strict failure " ^ (e ^ (" on \n" ^ (s z ^ "\n")))) )) let rec mk_sdt_subroutine (d:dwarf) subprogram_line_extents1 (cu:compilation_unit) parents (die1:die) : sdt_subroutine option= (if not(Lem_list.elem instance_Basic_classes_Eq_Num_natural_dict die1.die_abbreviation_declaration.ad_tag [tag_encode "DW_TAG_subprogram"; tag_encode "DW_TAG_inlined_subroutine"]) then None else let c = (p_context_of_d d) in (* let s (cu,parents,die) : string = pp_die c cu.cu_header d.d_str true 0 false die in*) let cupdie1 = (cu, parents, die1) in let parents' = (die1::parents) in let kind = (if Nat_big_num.equal die1.die_abbreviation_declaration.ad_tag (tag_encode "DW_TAG_subprogram") then SSK_subprogram else if Nat_big_num.equal die1.die_abbreviation_declaration.ad_tag (tag_encode "DW_TAG_inlined_subroutine") then SSK_inlined_subroutine else failwith ("unreachable bad kind")) in Some ( { ss_cupdie = cupdie1; ss_name =( (*strict_mss ( *)find_name_of_die_using_abstract_origin c d cu d.d_str die1)(* ) "no name" s cupdie;*); ss_kind = kind; ss_call_site = (call_site_of_die d subprogram_line_extents1 cu die1); ss_abstract_origin = ((match find_reference_attribute_of_die c d cu d.d_str "DW_AT_abstract_origin" die1 with | None -> None | Some (((cu',parents',die') as cupdie')) -> mk_sdt_subroutine d subprogram_line_extents1 cu' parents' die' )); ss_type = (find_DW_AT_type_of_die_deep(*_using_abstract_origin*) d cupdie1); ss_vars = (Lem_list.mapMaybe (mk_sdt_variable_or_formal_parameter d subprogram_line_extents1 cu parents') die1.die_children); ss_unspecified_parameters = (Lem_list.mapMaybe (mk_sdt_unspecified_parameter d subprogram_line_extents1 cu parents') die1.die_children); ss_entry_address = (entry_address die1); ss_pc_ranges = (range_of_die_d d cu die1); ss_subroutines = (Lem_list.mapMaybe (mk_sdt_subroutine d subprogram_line_extents1 cu parents') die1.die_children); ss_lexical_blocks = (Lem_list.mapMaybe (mk_sdt_lexical_block d subprogram_line_extents1 cu parents') die1.die_children); ss_decl = (decl_of_die d subprogram_line_extents1 cu die1); ss_noreturn = ((match find_flag_attribute_value_of_die_using_abstract_origin d "DW_AT_noreturn" cupdie1 with Some b -> b | None -> false )); ss_external = ((match find_flag_attribute_value_of_die_using_abstract_origin d "DW_AT_external" cupdie1 with Some b -> b | None -> false )); } )) and mk_sdt_lexical_block (d:dwarf) subprogram_line_extents1 (cu:compilation_unit) parents (die1:die) : sdt_lexical_block option= (if not ( Nat_big_num.equal die1.die_abbreviation_declaration.ad_tag (tag_encode "DW_TAG_lexical_block")) then None else let c = (p_context_of_d d) in (*let s (cu,parents,die) : string = pp_die c cu.cu_header d.d_str true 0 false die in*) let cupdie1 = (cu, parents, die1) in let parents' = (die1::parents) in Some ( { slb_cupdie = cupdie1; slb_vars = (Lem_list.mapMaybe (mk_sdt_variable_or_formal_parameter d subprogram_line_extents1 cu parents') die1.die_children); slb_pc_ranges = (range_of_die_d d cu die1); slb_subroutines = (Lem_list.mapMaybe (mk_sdt_subroutine d subprogram_line_extents1 cu parents') die1.die_children); slb_lexical_blocks = (Lem_list.mapMaybe (mk_sdt_lexical_block d subprogram_line_extents1 cu parents') die1.die_children); } )) let strict_mscu x e s z:'a= ((match x with | Some y -> y | None -> failwith ("mk_sdt_compilation_unit strict failure " ^ (e ^ (" on \n" ^ (s z ^ "\n")))) )) let mk_sdt_compilation_unit (d:dwarf) subprogram_line_extents1 (cu:compilation_unit) : sdt_compilation_unit= (let c = (p_context_of_d d) in let s (cu,(parents: die list),die1) : string= (pp_die c cu.cu_header d.d_str true( (Nat_big_num.of_int 0)) false die1) in let cupdie1 = (cu, [], cu.cu_die) in let parents' = ([cu.cu_die]) in { scu_cupdie = (cu, [], cu.cu_die); scu_name = (strict_mscu (find_name_of_die d.d_str cu.cu_die) "no name" s cupdie1); scu_subroutines = (Lem_list.mapMaybe (mk_sdt_subroutine d subprogram_line_extents1 cu parents') cu.cu_die.die_children); scu_vars = (Lem_list.mapMaybe (mk_sdt_variable_or_formal_parameter d subprogram_line_extents1 cu parents') cu.cu_die.die_children); scu_pc_ranges = (range_of_die_d d cu cu.cu_die); }) let mk_sdt_dwarf (d:dwarf) subprogram_line_extents1 : sdt_dwarf= ({ sd_compilation_units = (Lem_list.map (mk_sdt_compilation_unit d subprogram_line_extents1) d.d_compilation_units); }) (* **** verbose pp of simple die tree view *************** *) let pp_sdt_unspecified_parameter (level:Nat_big_num.num) (sup:sdt_unspecified_parameter) : string= (indent_level true level ^ ("unspecified parameters" ^ "\n")) let pp_parsed_single_location_description (level:Nat_big_num.num) ((n1:Nat_big_num.num), (n2:Nat_big_num.num), (ops: operation list)) : string= (let indent = (indent_level true level) in indent ^ (pphex n1 ^ (" " ^ (pphex n2 ^ (" (" ^ (pp_operations ops ^(")" ^"\n"))))))) let pp_pc_ranges (level:Nat_big_num.num) (rso: ( (Nat_big_num.num*Nat_big_num.num)list)option):string= ((match rso with | None -> "none\n" | Some rs -> let indent = (indent_level true level) in "\n" ^ String.concat "" (Lem_list.map (fun (n1,n2) -> indent ^ (pphex n1 ^ (" " ^ (pphex n2 ^ "\n")))) rs) )) let pp_sdt_maybe x f:string= ((match x with None -> "none\n" | Some y -> f y )) let pp_sdt_maybe' f x:string= (pp_sdt_maybe x f) let pp_sdt_list xs f:string= ((match xs with [] -> "none\n" | _ -> "\n" ^ String.concat "" ((Lem_list.map f) xs) )) let pp_sdt_variable_or_formal_parameter (level:Nat_big_num.num) (svfp: sdt_variable_or_formal_parameter) : string= (let indent = (indent_level true level) in "" ^ (indent ^ ("name:" ^ (svfp.svfp_name ^ ("\n" ^ (indent ^ ("cupdie:" ^ (pp_cupdie3 svfp.svfp_cupdie ^ ("\n" ^ (indent ^ ("kind:" ^ (((match svfp.svfp_kind with SVPK_var -> "var" | SVPK_param -> "param" )) ^ ("\n" ^ (indent ^ ("type:" ^ (pp_sdt_maybe' pp_type_info_deep svfp.svfp_type ^ ("\n" ^ (indent ^ ("const_value:" ^ (string_of_maybe instance_Show_Show_Num_integer_dict svfp.svfp_const_value ^ ("\n" ^ (indent ^ ("external:" ^ (string_of_bool svfp.svfp_external ^ ("\n" ^ (indent ^ ("declaration:" ^ (string_of_bool svfp.svfp_declaration ^ ("\n" ^ (indent ^ ("locations:" ^ (pp_sdt_maybe svfp.svfp_locations (fun locs -> "\n" ^ String.concat "" (Lem_list.map (pp_parsed_single_location_description (Nat_big_num.add level( (Nat_big_num.of_int 1)))) locs)) ^ (indent ^ ("decl:" ^ (pp_sdt_maybe svfp.svfp_decl (fun ud -> "\n" ^ (indent_level true (Nat_big_num.add level( (Nat_big_num.of_int 1))) ^ (pp_ud ud ^ "\n"))) ^ "\n"))))))))))))))))))))))))))))))))))) let rec pp_sdt_subroutine (level:Nat_big_num.num) (ss:sdt_subroutine) : string= (let indent = (indent_level true level) in "" ^ (indent ^ ("name:" ^ (pp_sdt_maybe ss.ss_name (fun name1 -> name1 ^ "\n") ^ (indent ^ ("cupdie:" ^ (pp_cupdie3 ss.ss_cupdie ^ ("\n" ^ (indent ^ ("kind:" ^ (((match ss.ss_kind with SSK_subprogram -> "subprogram" | SSK_inlined_subroutine -> "inlined subroutine" )) ^ ("\n" ^ (indent ^ ("call site:" ^ (pp_sdt_maybe ss.ss_call_site (fun ud -> "\n" ^ (indent_level true (Nat_big_num.add level( (Nat_big_num.of_int 1))) ^ (pp_ud ud ^ "\n"))) ^ (indent ^ ("abstract origin:" ^ (pp_sdt_maybe ss.ss_abstract_origin (pp_sdt_subroutine (Nat_big_num.add level( (Nat_big_num.of_int 1)))) ^ (indent ^ ("type:" ^ (pp_sdt_maybe ss.ss_type (fun typ -> pp_type_info_deep typ ^"\n") ^ (indent ^ ("vars:" ^ (pp_sdt_list ss.ss_vars (pp_sdt_variable_or_formal_parameter (Nat_big_num.add level( (Nat_big_num.of_int 1)))) ^ (indent ^ ("unspecified_parameters:" ^ (pp_sdt_list ss.ss_unspecified_parameters (pp_sdt_unspecified_parameter (Nat_big_num.add level( (Nat_big_num.of_int 1)))) ^ (indent ^ ("entry address: " ^ (pp_sdt_maybe ss.ss_entry_address (fun n -> pphex n^"\n") ^ (indent ^ ("pc ranges:" ^ (pp_pc_ranges (Nat_big_num.add level( (Nat_big_num.of_int 1))) ss.ss_pc_ranges ^ (indent ^ ("subroutines:" ^ (pp_sdt_list ss.ss_subroutines (pp_sdt_subroutine (Nat_big_num.add level( (Nat_big_num.of_int 1)))) ^ (indent ^ ("lexical_blocks:" ^ (pp_sdt_list ss.ss_lexical_blocks (pp_sdt_lexical_block (Nat_big_num.add level( (Nat_big_num.of_int 1)))) ^ (indent ^ ("decl:" ^ (pp_sdt_maybe ss.ss_decl (fun ud -> "\n" ^ (indent_level true (Nat_big_num.add level( (Nat_big_num.of_int 1))) ^ (pp_ud ud ^ "\n"))) ^ (indent ^ ("noreturn:" ^ (string_of_bool ss.ss_noreturn ^ ("\n" ^ (indent ^ ("external:" ^ (string_of_bool ss.ss_external ^("\n" ^ "\n")))))))))))))))))))))))))))))))))))))))))))))))))) and pp_sdt_lexical_block (level:Nat_big_num.num) (lb:sdt_lexical_block) : string= (let indent = (indent_level true level) in "" ^ (indent ^ ("cupdie:" ^ (pp_cupdie3 lb.slb_cupdie ^ ("\n" ^ (indent ^ ("pc ranges:" ^ (pp_pc_ranges (Nat_big_num.add level( (Nat_big_num.of_int 1))) lb.slb_pc_ranges ^ (indent ^ ("vars:" ^ (pp_sdt_list lb.slb_vars (pp_sdt_variable_or_formal_parameter (Nat_big_num.add level( (Nat_big_num.of_int 1)))) ^ (indent ^ ("subroutines :" ^ (pp_sdt_list lb.slb_subroutines (pp_sdt_subroutine (Nat_big_num.add level( (Nat_big_num.of_int 1)))) ^ (indent ^ ("lexical_blocks:" ^ (pp_sdt_list lb.slb_lexical_blocks (pp_sdt_lexical_block (Nat_big_num.add level( (Nat_big_num.of_int 1)))) ^ "\n"))))))))))))))))) let pp_sdt_compilation_unit (level:Nat_big_num.num) (cu:sdt_compilation_unit) : string= (let indent = (indent_level true level) in "" ^ (indent ^ ("name:" ^ (cu.scu_name ^ ("\n" ^ (indent ^ ("cupdie:" ^ (pp_cupdie3 cu.scu_cupdie ^ ("\n" ^ (indent ^ ("pc ranges:" ^ (pp_pc_ranges (Nat_big_num.add level( (Nat_big_num.of_int 1))) cu.scu_pc_ranges ^ (indent ^ ("vars:" ^ (pp_sdt_list cu.scu_vars (pp_sdt_variable_or_formal_parameter (Nat_big_num.add level( (Nat_big_num.of_int 1)))) ^ (indent ^ ("subroutines :" ^ (pp_sdt_list cu.scu_subroutines (pp_sdt_subroutine (Nat_big_num.add level( (Nat_big_num.of_int 1)))) ^ "\n")))))))))))))))))) let pp_sdt_dwarf (sdt_d:sdt_dwarf) : string= (let indent_level1 =( (Nat_big_num.of_int 0)) in String.concat "" (Lem_list.map (pp_sdt_compilation_unit indent_level1) sdt_d.sd_compilation_units)) (* **** concise pp of simple die tree view *************** *) (* **************** global vars ************* *) let pp_sdt_concise_variable_or_formal_parameter (level:Nat_big_num.num) (svfp: sdt_variable_or_formal_parameter) : string= (let indent = (indent_level true level) in "" ^ (indent (* ^ indent ^ "cupdie:" ^ pp_cupdie3 svfp.svfp_cupdie ^ "\n"*) (*^ indent ^ "name:" ^*) ^ (svfp.svfp_name ^ (" " (*^ indent ^ "kind:" *) ^ (((match svfp.svfp_kind with SVPK_var -> "var" | SVPK_param -> "param" )) ^ (" " (*^ indent ^ "type:" *) ^ (pp_sdt_maybe' pp_type_info_deep svfp.svfp_type ^ (" " (*^ indent ^ "const_value:"*) ^ ((match svfp.svfp_const_value with | None -> "" | Some v -> "const:"^(Nat_big_num.to_string v ^ " ") ) (*^ indent ^ "external:" ^ show svfp.svfp_external ^ "\n"*) (*^ indent ^ "declaration:" ^ show svfp.svfp_declaration ^ "\n"*) (*^ indent ^ "locations:" *) ^ ((match svfp.svfp_locations with None -> "no locations\n" | Some locs -> "\n" ^ String.concat "" (Lem_list.map (pp_parsed_single_location_description (Nat_big_num.add level( (Nat_big_num.of_int 1)))) locs) ))))))))))) (* ^ indent ^ "decl:" ^ (match svfp.svfp_decl with Nothing -> "none\n" | Just ((ufe,line) as ud) -> "\n" ^ indent_level true (level+1) ^ pp_ufe ufe ^ " " ^ show line ^ "\n" end)*) let pp_sdt_globals_compilation_unit (level:Nat_big_num.num) (cu:sdt_compilation_unit) : string= (let indent = (indent_level true level) in "" (* ^ indent ^ "cupdie:" ^ pp_cupdie3 cu.scu_cupdie ^ "\n"*) ^ (indent ^ ( (*"name:" ^*)cu.scu_name ^ ("\n" (* ^ indent ^ "vars:" ^ "\n"*) ^ String.concat "" (Lem_list.map (pp_sdt_concise_variable_or_formal_parameter (Nat_big_num.add level( (Nat_big_num.of_int 1)))) cu.scu_vars))))) (* ^ indent ^ "subroutines :" ^ (match cu.scu_subroutines with | [] -> "none\n" | sus -> "\n" ^ String.concat "\n" (List.map (pp_sdt_subroutine (level+1)) sus) end) *) let pp_sdt_globals_dwarf (sdt_d:sdt_dwarf) : string= (let indent_level1 =( (Nat_big_num.of_int 0)) in String.concat "" (Lem_list.map (pp_sdt_globals_compilation_unit indent_level1) sdt_d.sd_compilation_units)) (* ****************** local vars *************** *) let rec pp_sdt_locals_subroutine (level:Nat_big_num.num) (ss:sdt_subroutine) : string= (let indent = (indent_level true level) in "" ^ (indent (*^ "name:" ^*) ^ (pp_sdt_maybe ss.ss_name (fun name1 -> name1 ^ "\n") (* ^ indent ^ "cupdie:" ^ pp_cupdie3 ss.ss_cupdie ^ "\n"*) ^ (indent ^ ("kind:" ^ (((match ss.ss_kind with SSK_subprogram -> "subprogram" | SSK_inlined_subroutine -> "inlined subroutine" )) ^ ("\n" ^ (indent ^ ("entry address: " ^ (pp_sdt_maybe ss.ss_entry_address (fun n -> pphex n^"\n") ^ (indent ^ ("call site:" ^ (pp_sdt_maybe ss.ss_call_site (fun ud -> "\n" ^ (indent_level true (Nat_big_num.add level( (Nat_big_num.of_int 1))) ^ (pp_ud ud ^ "\n"))) ^ (indent ^ ("abstract origin:" ^ (pp_sdt_maybe ss.ss_abstract_origin (fun s -> "\n" ^ pp_sdt_locals_subroutine (Nat_big_num.add level( (Nat_big_num.of_int 1))) s) (* ^ indent ^ "type:" ^ pp_sdt_maybe ss.ss_type (fun typ -> pp_type_info_deep typ ^"\n" end)*) ^ (indent ^ ("vars:" ^ (pp_sdt_list ss.ss_vars (pp_sdt_concise_variable_or_formal_parameter (Nat_big_num.add level( (Nat_big_num.of_int 1)))) ^ (indent ^ ("unspecified_parameters:" ^ (pp_sdt_list ss.ss_unspecified_parameters (pp_sdt_unspecified_parameter (Nat_big_num.add level( (Nat_big_num.of_int 1)))) (* ^ indent ^ "pc ranges:" ^ pp_pc_ranges (level+1) ss.ss_pc_ranges*) ^ (indent ^ ("subroutines:" ^ (pp_sdt_list ss.ss_subroutines (pp_sdt_locals_subroutine (Nat_big_num.add level( (Nat_big_num.of_int 1)))) ^ (indent ^ ("lexical_blocks:" ^ (pp_sdt_list ss.ss_lexical_blocks (pp_sdt_locals_lexical_block (Nat_big_num.add level( (Nat_big_num.of_int 1)))) (* ^ indent ^ "decl:" ^ pp_sdt_maybe ss.ss_decl (fun ((ufe,line) as ud) -> "\n" ^ indent_level true (level+1) ^ pp_ufe ufe ^ " " ^ show line ^ "\n" end)*) (* ^ indent ^ "noreturn:" ^ show ss.ss_noreturn ^ "\n"*) (* ^ indent ^ "external:" ^ show ss.ss_external ^"\n"*) ^ "\n")))))))))))))))))))))))))))) and pp_sdt_locals_lexical_block (level:Nat_big_num.num) (lb:sdt_lexical_block) : string= (let indent = (indent_level true level) in "" (* ^ indent ^ "cupdie:" ^ pp_cupdie3 lb.slb_cupdie ^ "\n"*) ^ (indent ^ ("vars:" ^ (pp_sdt_list lb.slb_vars (pp_sdt_concise_variable_or_formal_parameter (Nat_big_num.add level( (Nat_big_num.of_int 1)))) (* ^ indent ^ "pc ranges:" ^ pp_pc_ranges (level+1) lb.slb_pc_ranges*) ^ (indent ^ ("subroutines :" ^ (pp_sdt_list lb.slb_subroutines (pp_sdt_locals_subroutine (Nat_big_num.add level( (Nat_big_num.of_int 1)))) ^ (indent ^ ("lexical_blocks:" ^ (pp_sdt_list lb.slb_lexical_blocks (pp_sdt_locals_lexical_block (Nat_big_num.add level( (Nat_big_num.of_int 1)))) ^ "\n")))))))))) let pp_sdt_locals_compilation_unit (level:Nat_big_num.num) (cu:sdt_compilation_unit) : string= (let indent = (indent_level true level) in "" ^ (indent (*^ "name:" *) ^ (cu.scu_name ^ ("\n" (* ^ indent ^ "cupdie:" ^ pp_cupdie3 cu.scu_cupdie ^ "\n"*) ^ (indent ^ ("vars:" ^ (pp_sdt_list cu.scu_vars (pp_sdt_concise_variable_or_formal_parameter (Nat_big_num.add level( (Nat_big_num.of_int 1)))) ^ (indent ^ ("subroutines :" ^ pp_sdt_list cu.scu_subroutines (pp_sdt_locals_subroutine (Nat_big_num.add level( (Nat_big_num.of_int 1))))))))))))) let pp_sdt_locals_dwarf (sdt_d:sdt_dwarf) : string= (let indent_level1 =( (Nat_big_num.of_int 0)) in String.concat "" (Lem_list.map (pp_sdt_locals_compilation_unit indent_level1) sdt_d.sd_compilation_units)) (** ************************************************************ *) (** ** analysis of inlined_subroutine data *) (** ************************************************************ *) (* old version, directly over die tree *) (* let strict_ais x e s z = match x with | Just y -> y | Nothing -> Assert_extra.failwith ("analyse_inlined_subroutine strict failure " ^ e ^ " on \n" ^ s z ^ "\n") end val analyse_inlined_subroutines : dwarf -> inlined_subroutine_data let analyse_inlined_subroutines (d: dwarf) : inlined_subroutine_data = let c = p_context_of_d d in let s (cu,parents,die) = pp_die c cu.cu_header d.d_str true 0 false die in let inlined_subroutines : list (compilation_unit * (list die) * die) = find_dies (fun die -> die.die_abbreviation_declaration.ad_tag = tag_encode "DW_TAG_inlined_subroutine") d in List.map (fun (((cu:compilation_unit), (parents: list die), (die: die)) as inlined_subroutine) -> let ((cu',parents,die') as abstract_origin) : compilation_unit * (list die) * die = strict_ais (find_reference_attribute_of_die c d cu d.d_str "DW_AT_abstract_origin" die) "no abstract origin" s inlined_subroutine in let name : string = strict_ais (find_name_of_die d.d_str die') "no abstract origin name" s abstract_origin in let call_file : unpacked_file_entry = let file_index = strict_ais (find_natural_attribute_value_of_die c "DW_AT_call_file" die) "no DW_AT_call_file" s inlined_subroutine in unpack_file_entry (line_number_program_of_compilation_unit d cu).lnp_header file_index in (* match filename d cu file_index with | Just s -> s | Nothing -> "none" end in*) let call_line : natural = strict_ais (find_natural_attribute_value_of_die c "DW_AT_call_line" die) "no DW_AT_call_line" s inlined_subroutine in let pc_ranges : list (natural*natural) = strict_ais (closest_enclosing_range c d.d_ranges (cu_base_address cu) [die](*deliberately ignore parents*)) "no pc ranges" s inlined_subroutine in let const_params = List.mapMaybe (fun die'' -> if die''.die_abbreviation_declaration.ad_tag = tag_encode "DW_TAG_formal_parameter" then match find_reference_attribute_of_die c d cu d.d_str "DW_AT_abstract_origin" die'' with | Nothing -> Nothing | Just abstract_origin' -> match find_integer_attribute_value_of_die c "DW_AT_const_value" die'' with | Nothing -> Nothing | Just n -> Just (<| iscp_abstract_origin = abstract_origin'; iscp_value = n; |>) end end else Nothing ) die.die_children in <| is_inlined_subroutine = inlined_subroutine; is_abstract_origin = abstract_origin; is_name = name; is_call_file = call_file; is_call_line = call_line; is_pc_ranges = pc_ranges; is_const_params = const_params; |> ) inlined_subroutines *) (* new version, over simple-die-tree view, but still producing the previous old-style datastructure *) let analyse_inlined_subroutines_sdt_const_param (svfp:sdt_variable_or_formal_parameter) : inlined_subroutine_const_param option= ((match (svfp.svfp_kind, svfp.svfp_abstract_origin, svfp.svfp_const_value) with | (SVPK_param, Some svfp', Some n) -> Some ({ iscp_abstract_origin = (svfp'.svfp_cupdie); iscp_value = n; }) | _ -> None )) let rec analyse_inlined_subroutines_sdt_subroutine (sdt_parents: sdt_subroutine list) (ss:sdt_subroutine) : inlined_subroutine list= (let this : inlined_subroutine list = ((match (ss.ss_kind, ss.ss_abstract_origin) with | (SSK_inlined_subroutine, Some ss') -> let ((call_file:unpacked_file_entry),(call_line:Nat_big_num.num)) = ((match ss.ss_call_site with | Some (((ufe,line,subprogram_name) as ud):unpacked_decl) -> (ufe,Nat_big_num.of_int line) | None -> failwith "analyse_inlined_subroutines_sdt_subroutine found no ss_call_site" )) in let pc_ranges = ((match ss.ss_pc_ranges with | Some pc_ranges -> pc_ranges | None -> failwith "analyse_inlined_subroutines_sdt_subroutine found no ss_pc_ranges" )) in let const_params = (Lem_list.mapMaybe analyse_inlined_subroutines_sdt_const_param ss.ss_vars) in [ ({ is_inlined_subroutine = (ss.ss_cupdie); is_abstract_origin = (ss'.ss_cupdie); is_inlined_subroutine_sdt = ss; is_inlined_subroutine_sdt_parents = sdt_parents; is_name = ((match ss.ss_name with Some name1->name1 | None -> "no name" )); is_call_file = call_file; is_call_line = call_line; is_pc_ranges = pc_ranges; is_const_params = const_params; } )] | (SSK_inlined_subroutine, None) -> failwith "analyse_inlined_subroutines_sdt_subroutine found SSK_inlined_subroutine without ss_abstract_origin" | _ -> [] )) in let sdt_parents' = (ss::sdt_parents) in List.rev_append (List.rev (List.rev_append (List.rev this) (List.concat (map (analyse_inlined_subroutines_sdt_subroutine sdt_parents') ss.ss_subroutines)))) (List.concat (map (analyse_inlined_subroutines_sdt_lexical_block sdt_parents') ss.ss_lexical_blocks))) and analyse_inlined_subroutines_sdt_lexical_block sdt_parents (lb:sdt_lexical_block) : inlined_subroutine list= (List.rev_append (List.rev (List.concat (map (analyse_inlined_subroutines_sdt_subroutine sdt_parents) lb.slb_subroutines))) (List.concat (map (analyse_inlined_subroutines_sdt_lexical_block sdt_parents) lb.slb_lexical_blocks))) let analyse_inlined_subroutines_sdt_compilation_unit (cu:sdt_compilation_unit) : inlined_subroutine list= (List.concat (map (analyse_inlined_subroutines_sdt_subroutine []) cu.scu_subroutines)) let analyse_inlined_subroutines_sdt_dwarf (sd: sdt_dwarf) : inlined_subroutine list= (List.concat (map analyse_inlined_subroutines_sdt_compilation_unit sd.sd_compilation_units)) let analyse_inlined_subroutine_by_range (is:inlined_subroutine) : inlined_subroutine_data_by_range= (let n_ranges = (List.length is.is_pc_ranges) in Lem_list.mapi (fun i -> fun (n1,n2) -> ((n1,n2),(Nat_big_num.of_int i, Nat_big_num.of_int n_ranges),is)) is.is_pc_ranges) let is_lt dict_Basic_classes_Eq_b dict_Basic_classes_Ord_a dict_Basic_classes_Ord_b ((n1,n2),(m,n),is) ((n1',n2'),(m',n'),is'):bool= ( dict_Basic_classes_Ord_b.isLess_method n1 n1' || ( dict_Basic_classes_Eq_b.isEqual_method n1 n1' && dict_Basic_classes_Ord_a.isGreater_method n2 n2')) let analyse_inlined_subroutines_by_range (iss:inlined_subroutine_data) : inlined_subroutine_data_by_range= (Lem_sorting.insertSortBy (is_lt instance_Basic_classes_Eq_Num_natural_dict instance_Basic_classes_Ord_Num_natural_dict instance_Basic_classes_Ord_Num_natural_dict) (List.concat (Lem_list.map analyse_inlined_subroutine_by_range iss))) (* pp the inlined_subroutine tree structure. Technically these die offsets each also need the compilation-unit offset to be globally unique, but that's locally constant *) let rec pp_inlined_subroutine_parents (ds: die list) : string= ((match ds with | [] -> "" | die1::ds' -> if Nat_big_num.equal die1.die_abbreviation_declaration.ad_tag (tag_encode "DW_TAG_inlined_subroutine") then pp_pos die1.die_offset ^ (":" ^ pp_inlined_subroutine_parents ds') else if Nat_big_num.equal die1.die_abbreviation_declaration.ad_tag (tag_encode "DW_TAG_lexical_block") then "<lexical_block>:" ^ pp_inlined_subroutine_parents ds' else if Nat_big_num.equal die1.die_abbreviation_declaration.ad_tag (tag_encode "DW_TAG_subprogram") then "" else "<surprising ad_tag in " ^ (pp_pos die1.die_offset ^ (": " ^ (pphex die1.die_abbreviation_declaration.ad_tag ^ ">"))) )) let pp_inlined_subroutine_header ds is:string= (is.is_name ^ (" inlined from " ^ ((subprogram_at_line ds.ds_subprogram_line_extents is.is_call_file is.is_call_line) ^ (":" ^ (Nat_big_num.to_string is.is_call_line ^ (" (" ^ ((pp_ufe_brief is.is_call_file) ^ (")" ^ (" " ^ (let (cu,parents,die1) = (is.is_inlined_subroutine) in pp_inlined_subroutine_parents (die1::parents))))))))))) let pp_inlined_subroutine_const_params d is:string= (let c = (p_context_of_d d) in (match is.is_const_params with | [] -> "" | _ -> String.concat "" (Lem_list.map (fun iscp -> let fake_als : analysed_location_data = ([(iscp.iscp_abstract_origin,None)]) in let fake_diff = (pp_analysed_locations3_diff c (*HACK*) d d.d_str [] fake_als) in let const_in_place_of_locs = (Lem_list.map (fun (removed,(name1,offset,kind),typ,locs,parents) -> (removed,(name1,offset,kind),typ,("const="^Nat_big_num.to_string iscp.iscp_value),parents)) fake_diff) in pp_analysed_location_format const_in_place_of_locs ) is.is_const_params) )) let pp_inlined_subroutine ds is:string= (pp_inlined_subroutine_header ds is ^ ("\n" ^ (String.concat "" (Lem_list.map (fun (n1,n2) -> " " ^ (pphex n1 ^ (" " ^ (pphex n2 ^ "\n")))) is.is_pc_ranges) ^ pp_inlined_subroutine_const_params ds.ds_dwarf is))) let pp_inlined_subroutines ds iss:string= (String.concat "" (Lem_list.map (pp_inlined_subroutine ds) iss)) let pp_inlined_subroutine_by_range ds ((n1,n2),((m:Nat_big_num.num),(n:Nat_big_num.num)),is):string= (pphex n1 ^ (" " ^ (pphex n2 ^ (" " ^ ((if not (Nat_big_num.equal n( (Nat_big_num.of_int 1))) then "("^(Nat_big_num.to_string m^(" of "^(Nat_big_num.to_string n^") "))) else "") ^ (pp_inlined_subroutine_header ds is ^("\n" ^ (if Nat_big_num.equal m( (Nat_big_num.of_int 0)) then pp_inlined_subroutine_const_params ds.ds_dwarf is else "")))))))) let pp_inlined_subroutines_by_range ds iss:string= (String.concat "" (Lem_list.map (pp_inlined_subroutine_by_range ds) iss)) (** ************************************************************ *) (** ** pp of text section *) (** ************************************************************ *) (* assume 4-byte ARM instructions *) let rec words_of_byte_sequence (addr:Nat_big_num.num) (bs:byte_sequence0) (acc: (Nat_big_num.num * Nat_big_num.num)list) : (Nat_big_num.num * Nat_big_num.num) list= ((match read_4_bytes_be bs with | Success ((b0,b1,b2,b3), bs') -> let i : Nat_big_num.num = (Nat_big_num.add (Nat_big_num.add (Nat_big_num.add (natural_of_byte b0)(Nat_big_num.mul( (Nat_big_num.of_int 256))(natural_of_byte b1)))(Nat_big_num.mul( (Nat_big_num.of_int 65536))(natural_of_byte b2)))(Nat_big_num.mul(Nat_big_num.mul( (Nat_big_num.of_int 65536))( (Nat_big_num.of_int 256)))(natural_of_byte b3))) in words_of_byte_sequence (Nat_big_num.add addr( (Nat_big_num.of_int 4))) bs' ((addr,i)::acc) | Fail _ -> List.rev acc )) let pp_instruction ((addr:Nat_big_num.num),(i:Nat_big_num.num)):string= (Ml_bindings.hex_string_of_big_int_pad8 addr ^ (" " ^ (Ml_bindings.hex_string_of_big_int_pad8 i ^ "\n"))) (*val pp_text_section : elf_file -> string*) let pp_text_section f:string= (let (p_context1, addr, bs) = (extract_text f) in let instructions : (Nat_big_num.num * Nat_big_num.num) list = (words_of_byte_sequence addr bs []) in String.concat "" (Lem_list.map pp_instruction instructions)) (** ************************************************************ *) (** ** top level for main_elf ******************************** *) (** ************************************************************ *) (*val harness_string_of_elf_like_objdump : elf_file -> byte_sequence -> string*) let harness_string_of_elf_like_objdump f1 bs:string= (let mds = (extract_dwarf_static f1) in (match mds with | None -> "<no dwarf information extracted>" | Some ds -> "" (*pp_text_section f1*) ^ pp_dwarf_like_objdump ds.ds_dwarf )) (*val harness_string_of_elf : elf_file -> byte_sequence -> string*) let harness_string_of_elf f1 bs:string= (let mds = (extract_dwarf_static f1) in (match mds with | None -> "<no dwarf information extracted>" | Some ds -> let sdt_d = (mk_sdt_dwarf ds.ds_dwarf ds.ds_subprogram_line_extents) in "* emacs outline-mode configuration -*-outline-*- C-c C-{t,a,d,e}" ^ ("" (*pp_text_section f1*) ^ (pp_dwarf ds.ds_dwarf (* ^ analyse_locations_raw c d *) ^ ("************** evaluation of frame data *************************\n" ^ (pp_evaluated_frame_info ds.ds_evaluated_frame_info ^ ("************** analysis of location data *************************\n" ^ (pp_analysed_location_data ds.ds_dwarf ds.ds_analysed_location_data ^ ("************** line info *************************\n" ^ (pp_evaluated_line_info ds.ds_evaluated_line_info ^ ("************** inlined subroutine info *************************\n" ^ (let iss = (analyse_inlined_subroutines_sdt_dwarf sdt_d) in pp_inlined_subroutines ds iss ^ ("************** inlined subroutine info by range *************************\n" ^ (pp_inlined_subroutines_by_range ds (analyse_inlined_subroutines_by_range iss) ^ ("************** subprogram line-number extent info *************************\n" ^ (pp_subprograms instance_Show_Show_Num_natural_dict ds.ds_subprogram_line_extents ^ ("************** simple die tree *************************\n" ^ (pp_sdt_dwarf sdt_d ^ ("************** simple die tree globals *************************\n" ^ (pp_sdt_globals_dwarf sdt_d ^ ("************** simple die tree locals *************************\n" ^ pp_sdt_locals_dwarf sdt_d))))))))))))))))))) )) (*val harness_string_of_elf64_debug_info_section : elf64_file -> byte_sequence -> (*(natural -> string) -> (natural -> string) -> (natural -> string) -> elf64_header -> elf64_section_header_table -> string_table -> *) string*) let harness_string_of_elf64_debug_info_section f1 bs0:string= ( (*os proc usr hdr sht stbl*)harness_string_of_elf (ELF_File_64 f1) bs0) (*val harness_string_of_elf32_debug_info_section : elf32_file -> byte_sequence -> (* (natural -> string) -> (natural -> string) -> (natural -> string) -> elf32_header -> elf32_section_header_table -> string_table ->*) string*) let harness_string_of_elf32_debug_info_section f1 bs0:string= ( (*os proc usr hdr sht stbl*)harness_string_of_elf (ELF_File_32 f1) bs0) (*val harness_string_of_elf64_like_objdump : elf64_file -> byte_sequence -> (*(natural -> string) -> (natural -> string) -> (natural -> string) -> elf64_header -> elf64_section_header_table -> string_table -> *) string*) let harness_string_of_elf64_like_objdump f1 bs0:string= ( (*os proc usr hdr sht stbl*)harness_string_of_elf_like_objdump (ELF_File_64 f1) bs0) (*val harness_string_of_elf32_like_objdump : elf32_file -> byte_sequence -> (* (natural -> string) -> (natural -> string) -> (natural -> string) -> elf32_header -> elf32_section_header_table -> string_table ->*) string*) let harness_string_of_elf32_like_objdump f1 bs0:string= ( (*os proc usr hdr sht stbl*)harness_string_of_elf_like_objdump (ELF_File_32 f1) bs0)