You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
66 lines
2.1 KiB
66 lines
2.1 KiB
(*
|
|
* Copyright (c) 2016 - present Facebook, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This source code is licensed under the BSD style license found in the
|
|
* LICENSE file in the root directory of this source tree. An additional grant
|
|
* of patent rights can be found in the PATENTS file in the same directory.
|
|
*)
|
|
|
|
open! Utils
|
|
|
|
(** Module for builtin functions with their symbolic execution handler *)
|
|
|
|
type args = {
|
|
pdesc : Cfg.Procdesc.t;
|
|
instr : Sil.instr;
|
|
tenv : Tenv.t;
|
|
prop_ : Prop.normal Prop.t;
|
|
path : Paths.Path.t;
|
|
ret_ids : Ident.t list;
|
|
args : (Sil.exp * Sil.typ) list;
|
|
proc_name : Procname.t;
|
|
loc : Location.t;
|
|
}
|
|
|
|
type ret_typ = (Prop.normal Prop.t * Paths.Path.t) list
|
|
|
|
type t = args -> ret_typ
|
|
|
|
(* builtin function names for which we do symbolic execution *)
|
|
let builtin_functions = Procname.Hash.create 4
|
|
|
|
(* Check if the function is a builtin *)
|
|
let is_registered name =
|
|
Procname.Hash.mem builtin_functions name
|
|
|
|
(* get the symbolic execution handler associated to the builtin function name *)
|
|
let get name : t =
|
|
try Procname.Hash.find builtin_functions name
|
|
with Not_found -> assert false
|
|
|
|
(* register a builtin function name and symbolic execution handler *)
|
|
let register proc_name_str (sym_exe_fun: t) =
|
|
let proc_name = Procname.from_string_c_fun proc_name_str in
|
|
Procname.Hash.replace builtin_functions proc_name sym_exe_fun;
|
|
proc_name
|
|
|
|
(* register a builtin [Procname.t] and symbolic execution handler *)
|
|
let register_procname proc_name (sym_exe_fun: t) =
|
|
Procname.Hash.replace builtin_functions proc_name sym_exe_fun
|
|
|
|
(** print the functions registered *)
|
|
let pp_registered fmt () =
|
|
let builtin_names = ref [] in
|
|
Procname.Hash.iter (fun name _ -> builtin_names := name :: !builtin_names) builtin_functions;
|
|
builtin_names := IList.sort Procname.compare !builtin_names;
|
|
let pp pname = Format.fprintf fmt "%a@\n" Procname.pp pname in
|
|
Format.fprintf fmt "Registered builtins:@\n @[";
|
|
IList.iter pp !builtin_names;
|
|
Format.fprintf fmt "@]@."
|
|
|
|
(** print the builtin functions and exit *)
|
|
let print_and_exit () =
|
|
pp_registered Format.std_formatter ();
|
|
exit 0
|