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|
(*Generated by Lem from main_elf.lem.*)
(** [main_elf], the main module for the test program of the ELF development.
* Run like so:
* ./main_elf.opt --FLAG BINARY
* where:
* BINARY is an ELF binary
* FLAG is in the set { file-header, program-headers, section-headers,
* dynamic, relocs, symbols }
*
*)
open Lem_basic_classes
open Lem_function
open Lem_maybe
open Lem_list
open Lem_num
open Lem_string
open Lem_tuple
open Byte_sequence
open Default_printing
open Error
open Hex_printing
open Missing_pervasives
open Show
open Lem_assert_extra
open Endianness
open Elf_dynamic
open Elf_header
open Elf_file
open Elf_program_header_table
open Elf_section_header_table
open Elf_types_native_uint
open Harness_interface
open Sail_interface
open Abi_aarch64_relocation
open Abi_amd64_elf_header
open Abi_amd64_relocation
open Abi_amd64_serialisation
open Abi_power64_dynamic
open Abi_x86_relocation
open Abi_power64_relocation
open Gnu_ext_dynamic
open Gnu_ext_program_header_table
open Gnu_ext_section_header_table
open Dwarf
let default_hdr_bdl:('a ->string)*('b ->string)=
(default_os_specific_print, default_proc_specific_print)
let default_pht_bdl:('a ->string)*('b ->string)=
(default_os_specific_print, default_proc_specific_print)
let default_sht_bdl:('b ->string)*('a ->string)*('c ->string)=
(default_os_specific_print, default_proc_specific_print, default_user_specific_print)
(* unrolled and made tail recursive for efficiency on large ELF files...*)
(*val chunks : list string -> list (list string) -> list (list string) * nat*)
let rec chunks (ss : string list) (accum : ( string list) list):((string)list)list*int=
((match ss with
| s1::s2::s3::s4::s5::s6::s7::s8::s9::s10::s11::s12::s13::s14::s15::s16::ss ->
chunks ss ([(s2^s1);(s4^s3);(s6^s5);(s8^s7);(s10^s9);(s12^s11);(s14^s13);(s16^s15)]::accum)
| s1::s2::s3::s4::s5::s6::s7::s8::s9::s10::s11::s12::s13::s14::s15::[] ->
let buff = ([(s2^s1);(s4^s3);(s6^s5);(s8^s7);(s10^s9);(s12^s11);(s14^s13);("00"^s15)]) in
( List.rev_append (List.rev (List.rev accum)) [buff], 15)
| s1::s2::s3::s4::s5::s6::s7::s8::s9::s10::s11::s12::s13::s14::ss ->
let bits = (replicate0(Nat_big_num.of_int 1) " ") in
let fixed = (intercalate " " bits) in
let buff = (List.rev_append (List.rev [(s2^s1);(s4^s3);(s6^s5);(s8^s7);(s10^s9);(s12^s11);(s14^s13)]) [concatS fixed]) in
( List.rev_append (List.rev (List.rev accum)) [buff], 14)
| s1::s2::s3::s4::s5::s6::s7::s8::s9::s10::s11::s12::s13::[] ->
let bits = (replicate0(Nat_big_num.of_int 1) " ") in
let fixed = (intercalate " " bits) in
let buff = (List.rev_append (List.rev [(s2^s1);(s4^s3);(s6^s5);(s8^s7);(s10^s9);(s12^s11);("00"^s13)]) [concatS fixed]) in
( List.rev_append (List.rev (List.rev accum)) [buff], 13)
| s1::s2::s3::s4::s5::s6::s7::s8::s9::s10::s11::s12::[] ->
let bits = (replicate0(Nat_big_num.of_int 2) " ") in
let fixed = (intercalate " " bits) in
let buff = (List.rev_append (List.rev [(s2^s1);(s4^s3);(s6^s5);(s8^s7);(s10^s9);(s12^s11)]) [concatS fixed]) in
( List.rev_append (List.rev (List.rev accum)) [buff], 12)
| s1::s2::s3::s4::s5::s6::s7::s8::s9::s10::s11::[] ->
let bits = (replicate0(Nat_big_num.of_int 2) " ") in
let fixed = (intercalate " " bits) in
let buff = (List.rev_append (List.rev [(s2^s1);(s4^s3);(s6^s5);(s8^s7);(s10^s9);("00"^s11)]) [concatS fixed]) in
( List.rev_append (List.rev (List.rev accum)) [buff], 11)
| s1::s2::s3::s4::s5::s6::s7::s8::s9::s10::[] ->
let bits = (replicate0(Nat_big_num.of_int 3) " ") in
let fixed = (intercalate " " bits) in
let buff = (List.rev_append (List.rev [(s2^s1);(s4^s3);(s6^s5);(s8^s7);(s10^s9)]) [concatS fixed]) in
( List.rev_append (List.rev (List.rev accum)) [buff], 10)
| s1::s2::s3::s4::s5::s6::s7::s8::s9::[] ->
let bits = (replicate0(Nat_big_num.of_int 3) " ") in
let fixed = (intercalate " " bits) in
let buff = (List.rev_append (List.rev [(s2^s1);(s4^s3);(s6^s5);(s8^s7);("00"^s9)]) [concatS fixed]) in
( List.rev_append (List.rev (List.rev accum)) [buff], 9)
| s1::s2::s3::s4::s5::s6::s7::s8::[] ->
let bits = (replicate0(Nat_big_num.of_int 4) " ") in
let fixed = (intercalate " " bits) in
let buff = (List.rev_append (List.rev [(s2^s1);(s4^s3);(s6^s5);(s8^s7)]) [concatS fixed]) in
( List.rev_append (List.rev (List.rev accum)) [buff], 8)
| s1::s2::s3::s4::s5::s6::s7::[] ->
let bits = (replicate0(Nat_big_num.of_int 4) " ") in
let fixed = (intercalate " " bits) in
let buff = (List.rev_append (List.rev [(s2^s1);(s4^s3);(s6^s5);("00"^s7)]) [concatS fixed]) in
( List.rev_append (List.rev (List.rev accum)) [buff], 7)
| s1::s2::s3::s4::s5::s6::[] ->
let bits = (replicate0(Nat_big_num.of_int 5) " ") in
let fixed = (intercalate " " bits) in
let buff = (List.rev_append (List.rev [(s2^s1);(s4^s3);(s6^s5)]) [concatS fixed]) in
( List.rev_append (List.rev (List.rev accum)) [buff], 6)
| s1::s2::s3::s4::s5::[] ->
let bits = (replicate0(Nat_big_num.of_int 5) " ") in
let fixed = (intercalate " " bits) in
let buff = (List.rev_append (List.rev [(s2^s1);(s4^s3);("00"^s5)]) [concatS fixed]) in
( List.rev_append (List.rev (List.rev accum)) [buff], 5)
| s1::s2::s3::s4::[] ->
let bits = (replicate0(Nat_big_num.of_int 6) " ") in
let fixed = (intercalate " " bits) in
let buff = (List.rev_append (List.rev [(s2^s1);(s4^s3)]) [concatS fixed]) in
( List.rev_append (List.rev (List.rev accum)) [buff], 4)
| s1::s2::s3::[] ->
let bits = (replicate0(Nat_big_num.of_int 6) " ") in
let fixed = (intercalate " " bits) in
let buff = (List.rev_append (List.rev [(s2^s1);("00"^s3)]) [concatS fixed]) in
( List.rev_append (List.rev (List.rev accum)) [buff], 3)
| s1::s2::[] ->
let bits = (replicate0(Nat_big_num.of_int 7) " ") in
let fixed = (intercalate " " bits) in
let buff = (List.rev_append (List.rev [(s2^s1)]) [concatS fixed]) in
( List.rev_append (List.rev (List.rev accum)) [buff], 2)
| s1::[] ->
let bits = (replicate0(Nat_big_num.of_int 7) " ") in
let fixed = (intercalate " " bits) in
let buff = (List.rev_append (List.rev [("00"^s1)]) [concatS fixed]) in
( List.rev_append (List.rev (List.rev accum)) [buff], 1)
| [] -> (List.rev accum, 0)
))
(*val provide_offsets : (list (list string) * nat) -> list (string * list string)*)
let provide_offsets (ss, ed):(string*(string)list)list=
(List.rev_append (List.rev (Lem_list.mapi (fun i x ->
let hx = (unsafe_hex_string_of_natural( 7) ( Nat_big_num.mul(Nat_big_num.of_int i)(Nat_big_num.of_int 16))) in
(hx, x)) ss)) (if ed = 0 then
[(unsafe_hex_string_of_natural( 7) ( Nat_big_num.mul(Nat_big_num.of_int (List.length ss))(Nat_big_num.of_int 16)), [])]
else
[(unsafe_hex_string_of_natural( 7) ( Nat_big_num.add( Nat_big_num.mul(Nat_big_num.of_int ( Nat_num.nat_monus(List.length ss)( 1)))(Nat_big_num.of_int 16)) (Nat_big_num.of_int ed)), [])]))
(*val create_chunks : byte_sequence -> list (string * list string)*)
let create_chunks bs0:(string*(string)list)list=
(let ss = (Lem_list.map (fun x ->
unsafe_hex_string_of_natural( 2) (natural_of_byte x))
(Byte_sequence.byte_list_of_byte_sequence bs0))
in
provide_offsets (chunks ss []))
(*val print_chunk : string * list string -> string*)
let print_chunk (off, ss):string=
((match ss with
| [] -> off
| _ -> off ^ (" " ^ concatS (intercalate " " ss))
))
(*val obtain_abi_specific_string_of_reloc_type : natural -> (natural -> string)*)
let obtain_abi_specific_string_of_reloc_type mach:Nat_big_num.num ->string=
(if Nat_big_num.equal mach elf_ma_ppc64 then
string_of_ppc64_relocation_type
else if Nat_big_num.equal mach elf_ma_386 then
string_of_x86_relocation_type
else if Nat_big_num.equal mach elf_ma_aarch64 then
string_of_aarch64_relocation_type
else if Nat_big_num.equal mach elf_ma_x86_64 then
string_of_amd64_relocation_type
(*else if mach = elf_ma_mips then
string_of_mips64_relocation_type*)
else
(fun y->"Cannot deduce ABI"))
let ( _:unit) =
(let res =
(let (flag, arg) =
((match Ml_bindings.argv_list with
| progname::flag::fname1::more -> (flag, fname1)
| _ -> failwith "usage: main_elf <flag> <fname>"
))
in
Byte_sequence.acquire arg >>= (fun bs0 ->
repeatM' Elf_header.ei_nident bs0 (read_unsigned_char Endianness.default_endianness) >>= (fun (ident, bs) ->
(match Lem_list.list_index ident( 4) with
| None -> failwith "ELF ident transcription error"
| Some c ->
if Nat_big_num.equal (Nat_big_num.of_string (Uint32.to_string c)) Elf_header.elf_class_32 then
let ret =
(if flag = "--file-header" then
Elf_header.read_elf32_header bs0 >>= (fun (hdr, _) ->
return (Harness_interface.harness_string_of_elf32_file_header hdr))
else if flag = "--program-headers" then
Elf_file.read_elf32_file bs0 >>= (fun f1 ->
get_elf32_file_section_header_string_table f1 >>= (fun stbl ->
return (Harness_interface.harness_string_of_elf32_program_headers
string_of_gnu_ext_segment_type
(fun x ->
Nat_big_num.to_string x)
f1.elf32_file_header
f1.elf32_file_program_header_table
f1.elf32_file_section_header_table
stbl
bs0)))
else if flag = "--section-headers" then
Elf_file.read_elf32_file bs0 >>= (fun f1 ->
get_elf32_file_section_header_string_table f1 >>= (fun stbl ->
return (Harness_interface.harness_string_of_elf32_section_headers
string_of_gnu_ext_section_type
(fun x -> Nat_big_num.to_string x)
(fun x -> Nat_big_num.to_string x)
f1.elf32_file_header
f1.elf32_file_section_header_table
stbl)))
else if flag = "--relocs" then
Elf_file.read_elf32_file bs0 >>= (fun f1 ->
let print_reloc = (obtain_abi_specific_string_of_reloc_type (Nat_big_num.of_string (Uint32.to_string f1.elf32_file_header.elf32_machine))) in
return (Harness_interface.harness_string_of_elf32_relocs
f1
print_reloc
bs0))
(* else if flag = "--symbols" then
Harness_interface.harness_string_of_elf32_syms
f1
show
show
bs0 *)
else if flag = "--dynamic" then
Elf_file.read_elf32_file bs0 >>= (fun f1 ->
let so = (is_elf32_shared_object_file f1.elf32_file_header) in
return (Harness_interface.harness_string_of_elf32_dynamic_section
f1
bs0
gnu_ext_os_additional_ranges
(fun x -> gnu_ext_tag_correspondence_of_tag x)
(fun x -> gnu_ext_tag_correspondence_of_tag x)
(fun x -> string_of_dynamic_tag so x gnu_ext_os_additional_ranges string_of_gnu_ext_dynamic_tag (fun _ -> "proc: from main_elf"))
gnu_ext_elf32_value_of_elf32_dyn
(fun _ _ -> Error.fail "proc: from main_elf")))
else if flag = "--in-out" then
Elf_file.read_elf32_file bs0 >>= (fun f1 ->
(match Elf_file.bytes_of_elf32_file f1 with
| Fail f -> return f
| Success s ->
let chunks1 = (create_chunks s) in
let lines = (concatS (intercalate "\n" (Lem_list.map print_chunk chunks1))) in
return lines
))
else if flag = "--debug-dump=info" then
Elf_file.read_elf32_file bs0 >>= (fun f1 ->
get_elf32_file_section_header_string_table f1 >>= (fun stbl ->
return (Dwarf.harness_string_of_elf32_debug_info_section
f1
bs0
(*string_of_gnu_ext_section_type
(fun x -> show x)
(fun x -> show x)
f1.elf32_file_header
f1.elf32_file_section_header_table
stbl*)
)))
else
failwith "Unrecognised flag")
in
ret
else if Nat_big_num.equal (Nat_big_num.of_string (Uint32.to_string c)) Elf_header.elf_class_64 then
let ret =
(if flag = "--file-header" then
Elf_header.read_elf64_header bs0 >>= (fun (hdr, _) ->
return (Harness_interface.harness_string_of_elf64_file_header hdr))
else if flag = "--program-headers" then
Elf_file.read_elf64_file bs0 >>= (fun f1 ->
get_elf64_file_section_header_string_table f1 >>= (fun stbl ->
return (Harness_interface.harness_string_of_elf64_program_headers
string_of_gnu_ext_segment_type
(fun x ->
Nat_big_num.to_string x)
f1.elf64_file_header
f1.elf64_file_program_header_table
f1.elf64_file_section_header_table
stbl
bs0)))
else if flag = "--section-headers" then
Elf_file.read_elf64_file bs0 >>= (fun f1 ->
get_elf64_file_section_header_string_table f1 >>= (fun stbl ->
return (Harness_interface.harness_string_of_elf64_section_headers
string_of_gnu_ext_section_type
(fun x -> Nat_big_num.to_string x)
(fun x -> Nat_big_num.to_string x)
f1.elf64_file_header
f1.elf64_file_section_header_table
stbl)))
else if flag = "--relocs" then
Elf_file.read_elf64_file bs0 >>= (fun f1 ->
let print_reloc = (obtain_abi_specific_string_of_reloc_type (Nat_big_num.of_string (Uint32.to_string f1.elf64_file_header.elf64_machine))) in
return (Harness_interface.harness_string_of_elf64_relocs
f1
print_reloc
bs0))
(*else if flag = "--symbols" then
Harness_interface.harness_string_of_elf64_syms
f1
show
show
bs0*)
else if flag = "--dynamic" then
Elf_file.read_elf64_file bs0 >>= (fun f1 ->
let so = (is_elf64_shared_object_file f1.elf64_file_header) in
return (Harness_interface.harness_string_of_elf64_dynamic_section
f1
bs0
gnu_ext_os_additional_ranges
(fun x -> gnu_ext_tag_correspondence_of_tag x)
(fun x -> abi_power64_tag_correspondence_of_tag x) (* ABI! *)
(fun x -> string_of_dynamic_tag so x gnu_ext_os_additional_ranges string_of_gnu_ext_dynamic_tag string_of_abi_power64_dynamic_tag)
gnu_ext_elf64_value_of_elf64_dyn
abi_power64_elf64_value_of_elf64_dyn)) (* ABI! *)
else if flag = "--in-out" then
Elf_file.read_elf64_file bs0 >>= (fun f1 ->
(match Elf_file.bytes_of_elf64_file f1 with
| Fail f -> return f
| Success s ->
let chunks1 = (create_chunks s) in
let lines = (concatS (intercalate "\n" (Lem_list.map print_chunk chunks1))) in
return lines
))
else if flag = "--debug-dump=info" then
Elf_file.read_elf64_file bs0 >>= (fun f1 ->
get_elf64_file_section_header_string_table f1 >>= (fun stbl ->
return (Dwarf.harness_string_of_elf64_debug_info_section
f1
bs0
(*string_of_gnu_ext_section_type
(fun x -> show x)
(fun x -> show x)
f1.elf64_file_header
f1.elf64_file_section_header_table
stbl*)
)))
else
failwith "Unimplemented (for ELF64) or unrecognised flag")
in
ret
else
failwith "ELF ident transcription error"
))))
in
(match res with
| Fail err -> prerr_endline ("[!]: " ^ err)
| Success e -> print_endline (string_of_string e)
))
(*
let _ =
match Sail_interface.populate_and_obtain_global_symbol_init_info "../test/mixed-binaries/tiny-istatic-with-malloc/tiny-tinystatic-with-malloc" with
| Fail err -> Missing_pervasives.errln ("[!]: " ^ err)
| Success (img, syms) -> Missing_pervasives.outln (Sail_interface.string_of_executable_process_image img)
end
*)
|
