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(*
*
* Copyright (c) 2001-2002,
* George C. Necula <necula@cs.berkeley.edu>
* Scott McPeak <smcpeak@cs.berkeley.edu>
* Wes Weimer <weimer@cs.berkeley.edu>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. The names of the contributors may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*)
(* libmaincil *)
(* this is a replacement for maincil.ml, for the case when we're
* creating a C-callable library (libcil.a); all it does is register
* a couple of functions and initialize CIL *)
module E = Errormsg
open Cil
(* print a Cil 'file' to stdout *)
let unparseToStdout (cil : file) : unit =
begin
dumpFile defaultCilPrinter stdout cil
end;;
(* a visitor to unroll all types - may need to do some magic to keep attributes *)
class unrollVisitorClass = object (self)
inherit nopCilVisitor
(* variable declaration *)
method vvdec (vi : varinfo) : varinfo visitAction =
begin
vi.vtype <- unrollTypeDeep vi.vtype;
(*ignore (E.log "varinfo for %s in file '%s' line %d byte %d\n" vi.vname vi.vdecl.file vi.vdecl.line vi.vdecl.byte);*)
SkipChildren
end
(* global: need to unroll fields of compinfo *)
method vglob (g : global) : global list visitAction =
begin
match g with
GCompTag(ci, loc) as g ->
let doFieldinfo (fi : fieldinfo) : unit =
fi.ftype <- unrollTypeDeep fi.ftype
in begin
ignore(List.map doFieldinfo ci.cfields);
(*ChangeTo [g]*)
SkipChildren
end
| _ -> DoChildren
end
end;;
let unrollVisitor = new unrollVisitorClass;;
(* open and parse a C file into a Cil 'file', unroll all typedefs *)
let parseOneFile (fname: string) : file =
let ast : file = Frontc.parse fname () in
begin
visitCilFile unrollVisitor ast;
ast
end
;;
let getDummyTypes () : typ * typ =
( TPtr(TVoid [], []), TInt(IInt, []) )
;;
(* register some functions - these may be called from C code *)
Callback.register "cil_parse" parseOneFile;
Callback.register "cil_unparse" unparseToStdout;
(* Callback.register "unroll_type_deep" unrollTypeDeep; *)
Callback.register "get_dummy_types" getDummyTypes;
(* initalize CIL *)
initCIL ();
|
