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(* SPDX-License-Identifier: AGPL-3.0-or-later *)
(* Copyright © 2021-2024 OCamlPro *)
(* Written by the Owi programmers *)
open Bos
open Syntax
type metadata =
{ arch : int
; property : Fpath.t option
; files : Fpath.t list
}
let binc_location = List.map Fpath.v C_share_site.Sites.binc
let libc_location = List.map Fpath.v C_share_site.Sites.libc
let find location file : Fpath.t Result.t =
let* l =
list_map
(fun dir ->
let filename = Fpath.append dir file in
match OS.File.exists filename with
| Ok true -> Ok (Some filename)
| Ok false -> Ok None
| Error (`Msg msg) -> Error (`Msg msg) )
location
in
let rec loop = function
| [] -> Error (`Msg (Fmt.str "can't find file %a" Fpath.pp file))
| None :: tl -> loop tl
| Some file :: _tl -> Ok file
in
loop l
let eacsl_instrument eacsl debug ~includes (files : Fpath.t list) :
Fpath.t list Result.t =
if eacsl then
let flags1 =
let includes =
String.concat " "
(List.map
(fun libpath -> Fmt.str "-I%s" (Fpath.to_string libpath))
includes )
in
let framac_verbosity_level = if debug then "2" else "0" in
Cmd.(
of_list
[ "-e-acsl"
; "-no-frama-c-stdlib"
; "-kernel-warn-key"
; "CERT:MSC:38=inactive"
; "-verbose"
; framac_verbosity_level
; String.concat "" [ {|-cpp-extra-args="|}; includes; {|"|} ]
] )
in
let flags2 = Cmd.(of_list [ "-then-last"; "-print"; "-ocode" ]) in
let* framac_bin = OS.Cmd.resolve @@ Cmd.v "frama-c" in
let outs =
List.map
(fun file ->
let file, ext = Fpath.split_ext file in
let file = Fpath.add_ext ".instrumented" file in
Fpath.add_ext ext file )
files
in
let framac : Fpath.t -> Fpath.t -> Cmd.t =
fun file out -> Cmd.(framac_bin %% flags1 % p file %% flags2 % p out)
in
let+ () =
list_iter
(fun (file, out) ->
match OS.Cmd.run @@ framac file out with
| Ok _ as v -> v
| Error (`Msg e) ->
Error
(`Msg
(Fmt.str "Frama-C failed: %s"
( if debug then e
else "run with --debug to get the full error message" ) )
) )
(List.combine files outs)
in
outs
else Ok files
let compile ~includes ~opt_lvl debug (files : Fpath.t list) : Fpath.t Result.t =
let flags =
let stack_size = 8 * 1024 * 1024 |> string_of_int in
let includes = Cmd.of_list ~slip:"-I" (List.map Fpath.to_string includes) in
Cmd.(
of_list
[ Fmt.str "-O%s" opt_lvl
; "--target=wasm32"
; "-m32"
; "-ffreestanding"
; "--no-standard-libraries"
; "-Wno-everything"
; "-flto=thin"
; (* LINKER FLAGS: *)
"-Wl,--entry=main"
; "-Wl,--export=main"
(* TODO: allow this behind a flag, this is slooooow *)
; "-Wl,--lto-O0"
; Fmt.str "-Wl,-z,stack-size=%s" stack_size
]
%% includes )
in
let* clang_bin = OS.Cmd.resolve @@ Cmd.v "clang" in
let out = Fpath.(v "a.out.wasm") in
let* libc = find binc_location (Fpath.v "libc.wasm") in
let files = Cmd.of_list (List.map Fpath.to_string (libc :: files)) in
let clang : Cmd.t = Cmd.(clang_bin %% flags % "-o" % p out %% files) in
let+ () =
match OS.Cmd.run clang with
| Ok _ as v -> v
| Error (`Msg e) ->
Error
(`Msg
(Fmt.str "Clang failed: %s"
( if debug then e
else "run with --debug to get the full error message" ) ) )
in
out
let pp_tm fmt Unix.{ tm_year; tm_mon; tm_mday; tm_hour; tm_min; tm_sec; _ } :
unit =
Fmt.pf fmt "%04d-%02d-%02dT%02d:%02d:%02dZ" (tm_year + 1900) tm_mon tm_mday
tm_hour tm_min tm_sec
let metadata ~workspace arch property files : unit Result.t =
let out_metadata chan { arch; property; files } =
let o = Xmlm.make_output ~nl:true ~indent:(Some 2) (`Channel chan) in
let tag n = (("", n), []) in
let el n d = `El (tag n, [ `Data d ]) in
let* spec =
match property with None -> Ok "" | Some f -> OS.File.read f
in
let file = String.concat " " (List.map Fpath.to_string files) in
let* hash =
list_fold_left
(fun context file ->
let+ str = OS.File.read file in
Digestif.SHA256.feed_string context str )
Digestif.SHA256.empty files
in
let hash = Digestif.SHA256.to_hex (Digestif.SHA256.get hash) in
let time = Unix.time () |> Unix.localtime in
let test_metadata =
`El
( tag "test-metadata"
, [ el "sourcecodelang" "C"
; el "producer" "owic"
; el "specification" (String.trim spec)
; el "programfile" file
; el "programhash" hash
; el "entryfunction" "main"
; el "architecture" (Fmt.str "%dbit" arch)
; el "creationtime" (Fmt.str "%a" pp_tm time)
] )
in
let dtd =
{xml|<!DOCTYPE test-metadata PUBLIC "+//IDN sosy-lab.org//DTD test-format test-metadata 1.1//EN" "https://sosy-lab.org/test-format/test-metadata-1.1.dtd">|xml}
in
Xmlm.output o (`Dtd (Some dtd));
Xmlm.output_tree Fun.id o test_metadata;
Ok ()
in
let fpath = Fpath.(workspace / "test-suite" / "metadata.xml") in
let* (_exists : bool) = OS.Dir.create ~path:true (Fpath.parent fpath) in
let* res = OS.File.with_oc fpath out_metadata { arch; property; files } in
res
let cmd ~debug ~arch ~property ~testcomp:_ ~workspace ~workers ~opt_lvl
~includes ~files ~profiling ~unsafe ~optimize ~no_stop_at_failure ~no_value
~no_assert_failure_expression_printing ~deterministic_result_order ~fail_mode
~concolic ~eacsl ~solver : unit Result.t =
let workspace = Fpath.v workspace in
let includes = libc_location @ includes in
let* (_exists : bool) = OS.Dir.create ~path:true workspace in
let* files = eacsl_instrument eacsl debug ~includes files in
let* modul = compile ~includes ~opt_lvl debug files in
let* () = metadata ~workspace arch property files in
let workspace = Fpath.(workspace / "test-suite") in
let files = [ modul ] in
(if concolic then Cmd_conc.cmd else Cmd_sym.cmd)
~profiling ~debug ~unsafe ~rac:false ~srac:false ~optimize ~workers
~no_stop_at_failure ~no_value ~no_assert_failure_expression_printing
~deterministic_result_order ~fail_mode ~workspace ~solver ~files