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|
(**************************************************************************)
(* *)
(* The Why platform for program certification *)
(* Copyright (C) 2002-2008 *)
(* Romain BARDOU *)
(* Jean-Franois COUCHOT *)
(* Mehdi DOGGUY *)
(* Jean-Christophe FILLITRE *)
(* Thierry HUBERT *)
(* Claude MARCH *)
(* Yannick MOY *)
(* Christine PAULIN *)
(* Yann RGIS-GIANAS *)
(* Nicolas ROUSSET *)
(* Xavier URBAIN *)
(* *)
(* This software is free software; you can redistribute it and/or *)
(* modify it under the terms of the GNU General Public *)
(* License version 2, as published by the Free Software Foundation. *)
(* *)
(* This software is distributed in the hope that it will be useful, *)
(* but WITHOUT ANY WARRANTY; without even the implied warranty of *)
(* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. *)
(* *)
(* See the GNU General Public License version 2 for more details *)
(* (enclosed in the file GPL). *)
(* *)
(**************************************************************************)
(*i $Id: cmain.ml,v 1.101 2008/02/05 12:10:47 marche Exp $ i*)
open Format
open Coptions
open Cerror
open Creport
open Output
let parse_file f =
let ppf = Cpp.cpp f in
let c = open_in ppf in
let p = Clexer.parse c in
close_in c;
f, p
let type_file (f,p) =
(f, Ctyping.type_file p)
let main () =
let t0 = Unix.times () in
(* parsing *)
let input_files = files () in
let pfiles = List.map parse_file input_files in
if parse_only then exit 0;
(* typing *)
let tfiles = List.map type_file pfiles in
if type_only then exit 0;
let on_all_files g = List.map (fun (f, dl) -> (f, g dl)) in
(* initialisation of global variables *)
let tfiles = on_all_files Cinit.add_init tfiles in
(* call graph *)
List.iter (fun (_,p) -> Cgraph.file p) tfiles ;
if print_graph then Cprint_graph.print_graph ();
let tab_comp = Cgraph.find_comp tfiles in
(* normalisation *)
Cenv.update_fields_type ();
lprintf "starting normalization of programs.@.";
let nfiles = on_all_files Cnorm.file tfiles in
(* local aliasing analysis *)
if local_aliasing then Cptr.local_aliasing_transform ();
(* separation *)
lprintf "starting separation of variables.@.";
List.iter (fun (_,p) -> Cseparation.file p) nfiles;
Cseparation.funct [Cinit.invariants_initially_established_info];
Array.iter (fun l ->
Cseparation.funct l )
tab_comp;
(* typing predicates *)
let nfiles = on_all_files Invariant.add_predicates nfiles in
if print_norm then begin
let print_fun = ref true in
List.iter
(fun (f,p) ->
let c = open_out (f ^ "norm") in
let fmt = Format.formatter_of_out_channel c in
Format.fprintf fmt "/* Declarations */@.@.";
Format.fprintf fmt "%a@." Cprint.nfile p;
if !print_fun then begin
Format.fprintf fmt "/* Functions */@.@.";
Cprint.nfunctions fmt;
Format.fprintf fmt "@.";
print_fun := false;
end;
close_out c) nfiles;
end;
(* effects *)
lprintf "starting computation of effects.@.";
List.iter (fun (_,p) -> Ceffect.file p) nfiles;
Array.iter (Ceffect.effect nfiles) tab_comp;
Queue.iter
(fun (loc,msg) ->
lprintf "%a %s@." Loc.report_position loc msg;
warning loc "%s" msg)
Ceffect.warnings;
lprintf "heap variables: %a@." Ceffect.print_heap_vars ();
(* Why interpretation *)
let why_specs =
List.fold_left
(fun specs (_,f) ->
let s = Cinterp.interp f in s @ specs)
[] nfiles
in
let (why_code,why_specs) = Cinterp.interp_functions why_specs in
(* Why specs *)
let first_file = Filename.chop_extension (List.hd input_files) in
let file = Lib.file "why" (first_file ^ "_spec") in
Pp.print_in_file
(fun fmt ->
fprintf fmt
"(* this file was automatically generated; do not edit *)@\n@\n";
fprintf fmt "(* zone variables *)@.";
if Coptions.no_zone_type then
fprintf fmt "type global@.@."
else
Hashtbl.iter
(fun name z ->
match z.Info.repr with
| None ->
let d = Type (name,[]) in
fprintf fmt "@[%a@]" fprintf_why_decls [d]
| Some _ -> ())
Cenv.zone_table;
fprintf fmt "(* logic types *)@.";
Cenv.iter_types (fun t -> fprintf fmt "@[type %s@\n@]" t);
let why_int_types =
Cinterp.make_int_types_decls () @ Cinterp.make_enum_types_decls ()
in
if why_int_types <> [] then begin
fprintf fmt "(* C integer types *)@.";
Output.fprintf_why_decls fmt why_int_types
end;
fprintf fmt "(* heap variables *)@.";
Hashtbl.iter
(fun v bt ->
let d = Param
(false, v,
Ref_type (Base_type (Info.output_why_type ~quote_var:false
bt.Info.var_why_type))) in
fprintf fmt "@[%a@]" fprintf_why_decls [d])
Ceffect.heap_vars;
fprintf fmt "(* functions specifications *)@\n";
Output.fprintf_why_decls fmt why_specs)
(file ^ ".tmp");
Lib.file_copy_if_different (file ^ ".tmp") (file ^ ".why");
(* function bodies *)
if separate then begin
List.iter
(fun (f,d) ->
Cmake.add first_file f;
let file = Lib.file "why" (first_file ^ "__" ^ f ) in
Pp.print_in_file
(fun fmt -> Output.fprintf_why_decl fmt d) (file ^ ".tmp");
Lib.file_copy_if_different (file ^ ".tmp") (file ^ ".why"))
why_code
end else begin
let file = Lib.file "why" first_file in
let why_code = List.map snd why_code in
Pp.print_in_file
(fun fmt -> Output.fprintf_why_decls fmt why_code) (file ^ ".tmp");
Lib.file_copy_if_different (file ^ ".tmp") (file ^ ".why")
end;
(* print locs *)
Pp.print_in_file Cinterp.print_locs (Lib.file "." (first_file ^ ".loc"));
(* makefile *)
Cmake.makefile first_file;
if show_time then
let t1 = Unix.times () in
printf "Caduceus execution time : %3.2f@." (t1.Unix.tms_utime -.
t0.Unix.tms_utime)
else
()
let rec explain_exception fmt = function
| Parsing.Parse_error ->
fprintf fmt "Syntax error"
| Stream.Error s ->
fprintf fmt "Syntax error: %s" s
| Error (Some loc, e) ->
fprintf fmt "%a%a" Loc.report_position loc report e
| Error (_, e) ->
report fmt e
| e ->
fprintf fmt "Anomaly: %s@." (Printexc.to_string e);
raise e
(* for debugging *)
(*
let () = main (); exit 1
*)
let () =
try
main ()
with e ->
eprintf "%a@." explain_exception e;
exit 1
(*
Local Variables:
compile-command: "make -j -C .. bin/caduceus.byte"
End:
*)
|
