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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
(* TODO: refactor to re-use code in Cmd_c.ml *)
let c_files_location = List.map Fpath.v Share.Sites.c_files
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 compile ~includes ~opt_lvl debug (files : Fpath.t list) : Fpath.t Result.t =
let* clangpp_bin = OS.Cmd.resolve @@ Cmd.v "clang++" in
let opt_lvl = Fmt.str "-O%s" opt_lvl in
let includes = Cmd.of_list ~slip:"-I" (List.map Cmd.p includes) in
let clang_cmd : Cmd.t =
Cmd.(
clangpp_bin % "-Wno-everything" % opt_lvl % "-emit-llvm"
% "--target=wasm32" % "-m32" % "-c" %% includes
%% Cmd.of_list (List.map Cmd.p files) )
in
let* () =
match OS.Cmd.run clang_cmd 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
let* llc_bin = OS.Cmd.resolve @@ Cmd.v "llc" in
let files_bc =
Cmd.of_list @@ List.map (fun file -> Cmd.p Fpath.(file -+ ".bc")) files
in
let llc_cmd : Cmd.t =
Cmd.(
llc_bin
%
(* TODO: configure this ? *)
"-O0" % "-march=wasm32" % "-filetype=obj" %% files_bc )
in
let* () =
match OS.Cmd.run llc_cmd with
| Ok _ as v -> v
| Error (`Msg e) ->
Error
(`Msg
(Fmt.str "llc failed: %s"
( if debug then e
else "run with --debug to get the full error message" ) ) )
in
let* wasmld_bin = OS.Cmd.resolve @@ Cmd.v "wasm-ld" in
let files_o =
Cmd.of_list @@ List.map (fun file -> Cmd.p Fpath.(file -+ ".o")) files
in
let out = Fpath.v "a.out.wasm" in
let* binc = find c_files_location (Fpath.v "libc.wasm") in
let wasmld_cmd : Cmd.t =
Cmd.(
wasmld_bin % "-z" % "stack-size=8388608" % "--export=main"
% "--entry=main" %% files_o % p binc % "-o" % p out )
in
let* () =
match OS.Cmd.run wasmld_cmd with
| Ok _ as v -> v
| Error (`Msg e) ->
Error
(`Msg
(Fmt.str "wasm-ld failed: %s"
( if debug then e
else "run with --debug to get the full error message" ) ) )
in
Ok out
let cmd ~debug ~arch:_ ~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 ~solver ~profile :
unit Result.t =
let includes = c_files_location @ includes in
let* modul = compile ~includes ~opt_lvl debug files 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:(Fpath.v "owi-out")
~solver ~files ~profile