MemVal.ml

(**************************************************************************)
(*                                                                        *)
(*  This file is part of WP plug-in of Frama-C.                           *)
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(*  Copyright (C) 2007-2021                                               *)
(*    CEA (Commissariat a l'energie atomique et aux energies              *)
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(*  Lesser General Public License as published by the Free Software       *)
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(**************************************************************************)

(* -------------------------------------------------------------------------- *)
(* --- Value Separation Analysis' Based Memory Model                      --- *)
(* -------------------------------------------------------------------------- *)

open Cil_types
open Cil_datatype
open Ctypes
open Lang
open Lang.F
open Sigs
open Definitions

module Logic = Qed.Logic

module type State =
sig
  type t

  val bottom : t
  val join : t -> t -> t

  val of_kinstr : Cil_types.kinstr -> t
  val of_stmt : Cil_types.stmt -> t
  val of_kf : Cil_types.kernel_function -> t

  val pretty : Format.formatter -> t -> unit
end

module type Value =
sig
  val configure : unit -> WpContext.rollback
  val datatype : string

  module State : State

  type t
  type state = State.t

  val null : t
  val literal: eid:int -> Cstring.cst -> int * t
  val cvar : varinfo -> t

  val field : t -> Cil_types.fieldinfo -> t
  val shift : t -> Ctypes.c_object -> term -> t
  val base_addr : t -> t

  val load : state -> t -> Ctypes.c_object -> t