From 1489eff0f805412c7ef43fffc29bc3339d66fc33 Mon Sep 17 00:00:00 2001
From: Valentin Perrelle <valentin.perrelle@cea.fr>
Date: Mon, 16 Jul 2018 15:02:20 +0200
Subject: [PATCH] [Dive] Initial commit
---
src/plugins/dive/.gitignore | 17 +
src/plugins/dive/Iig.mli | 21 +
src/plugins/dive/Makefile.in | 76 +++
src/plugins/dive/build.ml | 146 ++++++
src/plugins/dive/configure.ac | 79 ++++
src/plugins/dive/imprecision_graph.ml | 99 ++++
src/plugins/dive/licence/LGPL_HEADER | 18 +
src/plugins/dive/licence/LGPLv2.1 | 458 +++++++++++++++++++
src/plugins/dive/licence/headache_config.txt | 80 ++++
src/plugins/dive/main.ml | 65 +++
src/plugins/dive/self.ml | 50 ++
src/plugins/dive/self.mli | 28 ++
12 files changed, 1137 insertions(+)
create mode 100644 src/plugins/dive/.gitignore
create mode 100644 src/plugins/dive/Iig.mli
create mode 100644 src/plugins/dive/Makefile.in
create mode 100644 src/plugins/dive/build.ml
create mode 100644 src/plugins/dive/configure.ac
create mode 100644 src/plugins/dive/imprecision_graph.ml
create mode 100644 src/plugins/dive/licence/LGPL_HEADER
create mode 100644 src/plugins/dive/licence/LGPLv2.1
create mode 100644 src/plugins/dive/licence/headache_config.txt
create mode 100644 src/plugins/dive/main.ml
create mode 100644 src/plugins/dive/self.ml
create mode 100644 src/plugins/dive/self.mli
diff --git a/src/plugins/dive/.gitignore b/src/plugins/dive/.gitignore
new file mode 100644
index 00000000000..da479034bad
--- /dev/null
+++ b/src/plugins/dive/.gitignore
@@ -0,0 +1,17 @@
+*~
+*.cm*
+*.annot
+*.o
+*.check_mli_exists
+*.generated
+autom4te.cache
+Makefile
+config.status
+config.log
+configure
+*_DEP
+local_config.ml
+.depend
+ptests_local_config.ml
+result
+ptests_config
diff --git a/src/plugins/dive/Iig.mli b/src/plugins/dive/Iig.mli
new file mode 100644
index 00000000000..d8072ced7b7
--- /dev/null
+++ b/src/plugins/dive/Iig.mli
@@ -0,0 +1,21 @@
+(**************************************************************************)
+(* *)
+(* This file is part of the Frama-C plug-in `IIG'. *)
+(* *)
+(* Copyright (C) 2018 *)
+(* CEA (Commissariat à l'énergie atomique et aux énergies *)
+(* alternatives) *)
+(* *)
+(* you can redistribute it and/or modify it under the terms of the GNU *)
+(* Lesser General Public License as published by the Free Software *)
+(* Foundation, version 2.1. *)
+(* *)
+(* It 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 Lesser General Public License for more details. *)
+(* *)
+(* See the GNU Lesser General Public License version 2.1 *)
+(* for more details (enclosed in the file licenses/LGPLv2.1). *)
+(* *)
+(**************************************************************************)
diff --git a/src/plugins/dive/Makefile.in b/src/plugins/dive/Makefile.in
new file mode 100644
index 00000000000..1a40e18f471
--- /dev/null
+++ b/src/plugins/dive/Makefile.in
@@ -0,0 +1,76 @@
+##########################################################################
+# #
+# This file is part of the Frama-C plug-in `IIG'. #
+# #
+# Copyright (C) 2018 #
+# CEA (Commissariat à l'énergie atomique et aux énergies #
+# alternatives) #
+# #
+# you can redistribute it and/or modify it under the terms of the GNU #
+# Lesser General Public License as published by the Free Software #
+# Foundation, version 2.1. #
+# #
+# It 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 Lesser General Public License for more details. #
+# #
+# See the GNU Lesser General Public License version 2.1 #
+# for more details (enclosed in the file licenses/LGPLv2.1). #
+# #
+##########################################################################
+
+#######################
+# Frama-C Environment #
+#######################
+
+ifndef FRAMAC_SHARE
+FRAMAC_SHARE := $(shell frama-c-config -print-share-path)
+endif
+
+ifndef FRAMAC_LIBDIR
+FRAMAC_LIBDIR := $(shell frama-c-config -print-libpath)
+endif
+
+#########################
+# Plug-in configuration #
+#########################
+
+PLUGIN_DIR ?=.
+PLUGIN_NAME := Iig
+PLUGIN_CMO := self imprecision_graph build main
+PLUGIN_DEPENDENCIES:= Value Studia
+PLUGIN_HAS_MLI:= yes
+PLUGIN_TESTS_DIRS:=iig
+PLUGIN_GENERATED:=
+
+################
+# Generic part #
+################
+
+include $(FRAMAC_SHARE)/Makefile.dynamic
+
+##########
+# Header #
+##########
+
+headers::
+ @echo "Applying Headers..."
+ headache -c licence/headache_config.txt -h licence/LGPL_HEADER \
+ *.ml *.mli \
+ Makefile.in configure.ac
+
+#####################################
+# Regenerating the Makefile on need #
+#####################################
+
+ifeq ("$(FRAMAC_INTERNAL)","yes")
+CONFIG_STATUS_DIR:=$(FRAMAC_SRC)
+CONFIG_STATUS_DIR_DEP:=
+else
+CONFIG_STATUS_DIR:=$(Iig_DIR)
+CONFIG_STATUS_DIR_DEP:=$(CONFIG_STATUS_DIR)/config.status
+endif
+
+$(Iig_DIR)/Makefile: $(Iig_DIR)/Makefile.in $(CONFIG_STATUS_DIR_DEP)
+ cd $(CONFIG_STATUS_DIR) && ./config.status --file $@
diff --git a/src/plugins/dive/build.ml b/src/plugins/dive/build.ml
new file mode 100644
index 00000000000..6cc752585c5
--- /dev/null
+++ b/src/plugins/dive/build.ml
@@ -0,0 +1,146 @@
+(**************************************************************************)
+(* *)
+(* This file is part of the Frama-C plug-in `IIG'. *)
+(* *)
+(* Copyright (C) 2018 *)
+(* CEA (Commissariat à l'énergie atomique et aux énergies *)
+(* alternatives) *)
+(* *)
+(* you can redistribute it and/or modify it under the terms of the GNU *)
+(* Lesser General Public License as published by the Free Software *)
+(* Foundation, version 2.1. *)
+(* *)
+(* It 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 Lesser General Public License for more details. *)
+(* *)
+(* See the GNU Lesser General Public License version 2.1 *)
+(* for more details (enclosed in the file licenses/LGPLv2.1). *)
+(* *)
+(**************************************************************************)
+
+open Cil_types
+
+module G = Imprecision_graph
+open G
+
+let location_to_lval location =
+ let open Locations in
+ match location.loc with
+ | Location_Bits.Top _ -> None
+ | Location_Bits.Map _m -> None (*
+ let to_lval base ival acc =
+ if Extlib.has_somme acc then raise Exit;
+
+ in
+ try
+ Locations_Bits.fold to_lval m None
+ with Exit -> None *)
+
+
+let compute kinstr lval =
+ let module Table = Cil_datatype.LvalStructEq.Hashtbl in
+ !Db.Value.compute ();
+ let graph = G.create () in
+ let vertex_count = ref 0 in
+ let edge_count = ref 0 in
+ let table = Table.create 13 in
+
+ let add_vertex vertex_lval =
+ let v = {
+ vertex_key = !vertex_count;
+ vertex_lval;
+ }
+ in
+ incr vertex_count;
+ G.add_vertex graph v;
+ v
+
+ and add_edge v1 edge_kind v2 =
+ let e = {
+ edge_key = !edge_count;
+ edge_kind;
+ }
+ in
+ incr edge_count;
+ G.add_edge_e graph (v1,e,v2)
+ in
+
+ let rec build_lval kinstr lval = (* TODO: derecursify if necessary *)
+ let location = !Db.Value.lval_to_loc kinstr lval in
+ let lval = Extlib.opt_conv lval (location_to_lval location) in
+ try
+ Table.find table lval
+ with Not_found ->
+ let v = add_vertex lval in
+ Table.add table lval v;
+ begin match lval with
+ | Var vi, NoOffset when vi.vformal ->
+ let kf = Extlib.the (Kernel_function.find_defining_kf vi) in
+ let pos = Kernel_function.get_formal_position vi kf in
+ let callsites = Kernel_function.find_syntactic_callsites kf
+ and add_argument_dependencies (_caller_kf, stmt) =
+ match stmt.skind with
+ | Instr (Call (_,_,args,_))
+ | Instr (Local_init (_, ConsInit (_, args, _), _)) ->
+ let exp = List.nth args pos in
+ build_exp_deps v (Kstmt stmt) Data exp
+ | _ ->
+ Self.abort "%a" Cil_printer.pp_stmt stmt;
+ assert false (* TODO: comment *)
+ in
+ List.iter add_argument_dependencies callsites
+ | _ -> ()
+ end;
+
+ if Locations.valid_cardinal_zero_or_one ~for_writing:false location then begin
+ let zone = !Db.Value.lval_to_zone kinstr lval in
+ let writes = Studia.Writes.compute zone
+ and add_write_dependencies (stmt,effects) =
+ match stmt.skind with
+ | Instr instr when effects.Studia.Writes.direct ->
+ build_instr_deps v (Kstmt stmt) instr
+ | _ -> ()
+ in
+ List.iter add_write_dependencies writes;
+ end;
+ v
+
+ and build_instr_deps src kinstr = function
+ | Set (_, exp, _) | Local_init (_,AssignInit (SingleInit exp),_) ->
+ build_exp_deps src kinstr Data exp
+ | Call (_, _callee, args, _) ->
+ (* build_exp_deps src kinstr Callee callee; *)
+ List.iter (build_exp_deps src kinstr Data) args
+ | Local_init (_, ConsInit (_, args, _), _) ->
+ List.iter (build_exp_deps src kinstr Data) args
+ | Local_init _ -> () (* TODO *)
+ | Asm _ -> () (* TODO : tell the user it's not supported *)
+ | Skip _ | Code_annot _ -> ()
+
+ and build_exp_deps src kinstr kind exp =
+ match exp.enode with
+ | Const _
+ | SizeOf _ | SizeOfE _ | SizeOfStr _
+ | AlignOf _ -> () | AlignOfE _
+ | AddrOf _ | StartOf _ -> ()
+ | Lval lval ->
+ build_lval_deps src kinstr kind lval
+ | UnOp (_,e,_) | CastE (_,e) | Info (e,_) ->
+ build_exp_deps src kinstr kind e
+ | BinOp (_,e1,e2,_) ->
+ build_exp_deps src kinstr kind e1;
+ build_exp_deps src kinstr kind e2
+
+ and build_lval_deps src kinstr kind lval =
+ let dst = build_lval kinstr lval in
+ add_edge src kind dst
+ in
+ ignore (build_lval kinstr lval);
+ graph
+
+ (*
+ Self.result "%a -> %t"
+ Locations.Zone.pretty_debug zone
+ (fun fmt -> List.iter (fun (s,_) -> Cil_printer.pp_stmt fmt s) l) *)
\ No newline at end of file
diff --git a/src/plugins/dive/configure.ac b/src/plugins/dive/configure.ac
new file mode 100644
index 00000000000..7443a4eb2e1
--- /dev/null
+++ b/src/plugins/dive/configure.ac
@@ -0,0 +1,79 @@
+##########################################################################
+# #
+# This file is part of the Frama-C plug-in `IIG'. #
+# #
+# Copyright (C) 2018 #
+# CEA (Commissariat à l'énergie atomique et aux énergies #
+# alternatives) #
+# #
+# you can redistribute it and/or modify it under the terms of the GNU #
+# Lesser General Public License as published by the Free Software #
+# Foundation, version 2.1. #
+# #
+# It 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 Lesser General Public License for more details. #
+# #
+# See the GNU Lesser General Public License version 2.1 #
+# for more details (enclosed in the file licenses/LGPLv2.1). #
+# #
+##########################################################################
+
+m4_define([plugin_file],Makefile.in)
+
+m4_define([FRAMAC_SHARE_ENV],
+ [m4_normalize(m4_esyscmd([echo $FRAMAC_SHARE]))])
+
+m4_define([FRAMAC_SHARE],
+ [m4_ifval(FRAMAC_SHARE_ENV,[FRAMAC_SHARE_ENV],
+ [m4_esyscmd(frama-c -print-path)])])
+
+m4_ifndef([FRAMAC_M4_MACROS], [m4_include(FRAMAC_SHARE/configure.ac)])
+
+check_plugin(iig,PLUGIN_RELATIVE_PATH(plugin_file),
+ [support for IIG plug-in],yes)
+
+# Check Frama-C version
+#######################
+
+if test -n "$FRAMAC_VERSION"; then
+
+AC_MSG_CHECKING(for Frama-C version)
+
+DEV_VERSION_NUMBER=`echo $FRAMAC_VERSION | sed -e 's/.*-\(.*\)/\1/' `
+VERSION_NUMBER=`echo $DEV_VERSION_NUMBER | sed -e 's/\(.*\)+dev/\1/' `
+DEV=`echo $DEV_VERSION_NUMBER | sed -e 's/.*\(+dev\)/\1/' `
+
+REQUIRED_VERSION=20140301
+VERSION_NAME=Neon
+
+if test $VERSION_NUMBER -lt $REQUIRED_VERSION; then
+ AC_MSG_ERROR(Frama-C version must be $VERSION_NAME-$REQUIRED_VERSION.)
+else if test $VERSION_NUMBER -gt $REQUIRED_VERSION; then
+ AC_MSG_WARN(Frama-C version higher than $VERSION_NAME-$REQUIRED_VERSION not tested: use it at your own risk.)
+else
+ AC_MSG_RESULT($VERSION_NAME-$REQUIRED_VERSION$DEV: good!)
+fi
+fi
+
+# at the time being, must use the Frama-C development version
+if test "$DEV" != "+dev"; then
+ AC_MSG_ERROR(Frama-C version must be the current SVN version.);
+fi
+
+fi
+
+# Plug-in dependencies
+######################
+
+plugin_require(iig,value,studia)
+#plugin_use(iig,usable_plugin_but_not_mandatory)
+
+check_plugin_dependencies
+
+#######################
+# Generating Makefile #
+#######################
+
+write_plugin_config(Makefile)
diff --git a/src/plugins/dive/imprecision_graph.ml b/src/plugins/dive/imprecision_graph.ml
new file mode 100644
index 00000000000..35b06267aa5
--- /dev/null
+++ b/src/plugins/dive/imprecision_graph.ml
@@ -0,0 +1,99 @@
+(**************************************************************************)
+(* *)
+(* This file is part of the Frama-C plug-in `IIG'. *)
+(* *)
+(* Copyright (C) 2018 *)
+(* CEA (Commissariat à l'énergie atomique et aux énergies *)
+(* alternatives) *)
+(* *)
+(* you can redistribute it and/or modify it under the terms of the GNU *)
+(* Lesser General Public License as published by the Free Software *)
+(* Foundation, version 2.1. *)
+(* *)
+(* It 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 Lesser General Public License for more details. *)
+(* *)
+(* See the GNU Lesser General Public License version 2.1 *)
+(* for more details (enclosed in the file licenses/LGPLv2.1). *)
+(* *)
+(**************************************************************************)
+
+type vertex_label = {
+ vertex_key : int;
+ vertex_lval : Cil_types.lval
+}
+
+type dependency_kind = Callee | Data | Adress | Control
+
+type edge_label = {
+ edge_key : int;
+ edge_kind : dependency_kind;
+}
+
+let dummy_edge = {
+ edge_key = -1;
+ edge_kind = Data;
+}
+
+module Vertex =
+struct
+ type t = vertex_label
+ let compare v1 v2 = v1.vertex_key - v2.vertex_key
+ let hash v = v.vertex_key
+ let equal v1 v2 = v1.vertex_key = v2.vertex_key
+end
+
+module Edge =
+struct
+ type t = edge_label
+ let compare e1 e2 = e1.edge_key - e2.edge_key
+ let hash e = e.edge_key
+ let equal e1 e2 = e1.edge_key = e2.edge_key
+ let default = dummy_edge
+end
+
+module G = Graph.Imperative.Digraph.ConcreteBidirectionalLabeled (Vertex) (Edge)
+include G
+
+let lval_proprietary_kf lval =
+ match lval with
+ | Cil_types.Var vi, Cil_types.NoOffset ->
+ Kernel_function.find_defining_kf vi
+ | _ -> None
+
+let ouptput_to_dot out_channel g =
+ let open Graph.Graphviz.DotAttributes in
+
+ let label s = `HtmlLabel (Extlib.html_escape s) in
+
+ let module Table = Kernel_function.Hashtbl in
+ let table = Table.create 13 in
+ let build_subgraph kf = {
+ sg_name = "f" ^ (string_of_int (Kernel_function.get_id kf));
+ sg_attributes = [label (Kernel_function.get_name kf) ];
+ sg_parent = None;
+ }
+ in
+
+ let module Dot = Graph.Graphviz.Dot (
+ struct
+ include G
+ let graph_attributes _g = []
+ let default_vertex_attributes _g = [`Shape `Box]
+ let vertex_name v = "cp" ^ (string_of_int v.vertex_key)
+ let vertex_label v =
+ Pretty_utils.to_string Cil_printer.pp_lval v.vertex_lval
+ let vertex_attributes v = [ label (vertex_label v) ]
+ let get_subgraph v =
+ let kf = lval_proprietary_kf v.vertex_lval in
+ Extlib.opt_map (fun kf -> Table.memo table kf build_subgraph) kf
+ let default_edge_attributes _g = []
+ let edge_attributes (_v1,e,_v2) =
+ match e.edge_kind with
+ | Callee -> [`Color 0xff0000 ]
+ | _ -> []
+ end)
+ in
+ Dot.output_graph out_channel g
diff --git a/src/plugins/dive/licence/LGPL_HEADER b/src/plugins/dive/licence/LGPL_HEADER
new file mode 100644
index 00000000000..a6778d096bf
--- /dev/null
+++ b/src/plugins/dive/licence/LGPL_HEADER
@@ -0,0 +1,18 @@
+
+This file is part of the Frama-C plug-in `IIG'.
+
+Copyright (C) 2018
+ CEA (Commissariat à l'énergie atomique et aux énergies
+ alternatives)
+
+you can redistribute it and/or modify it under the terms of the GNU
+Lesser General Public License as published by the Free Software
+Foundation, version 2.1.
+
+It 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 Lesser General Public License for more details.
+
+See the GNU Lesser General Public License version 2.1
+for more details (enclosed in the file licenses/LGPLv2.1).
diff --git a/src/plugins/dive/licence/LGPLv2.1 b/src/plugins/dive/licence/LGPLv2.1
new file mode 100644
index 00000000000..8c177f8bedc
--- /dev/null
+++ b/src/plugins/dive/licence/LGPLv2.1
@@ -0,0 +1,458 @@
+ GNU LESSER GENERAL PUBLIC LICENSE
+ Version 2.1, February 1999
+
+ Copyright (C) 1991, 1999 Free Software Foundation, Inc.
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+[This is the first released version of the Lesser GPL. It also counts
+ as the successor of the GNU Library Public License, version 2, hence
+ the version number 2.1.]
+
+ Preamble
+
+ The licenses for most software are designed to take away your
+freedom to share and change it. By contrast, the GNU General Public
+Licenses are intended to guarantee your freedom to share and change
+free software--to make sure the software is free for all its users.
+
+ This license, the Lesser General Public License, applies to some
+specially designated software packages--typically libraries--of the
+Free Software Foundation and other authors who decide to use it. You
+can use it too, but we suggest you first think carefully about whether
+this license or the ordinary General Public License is the better
+strategy to use in any particular case, based on the explanations below.
+
+ When we speak of free software, we are referring to freedom of use,
+not price. Our General Public Licenses are designed to make sure that
+you have the freedom to distribute copies of free software (and charge
+for this service if you wish); that you receive source code or can get
+it if you want it; that you can change the software and use pieces of
+it in new free programs; and that you are informed that you can do
+these things.
+
+ To protect your rights, we need to make restrictions that forbid
+distributors to deny you these rights or to ask you to surrender these
+rights. These restrictions translate to certain responsibilities for
+you if you distribute copies of the library or if you modify it.
+
+ For example, if you distribute copies of the library, whether gratis
+or for a fee, you must give the recipients all the rights that we gave
+you. You must make sure that they, too, receive or can get the source
+code. If you link other code with the library, you must provide
+complete object files to the recipients, so that they can relink them
+with the library after making changes to the library and recompiling
+it. And you must show them these terms so they know their rights.
+
+ We protect your rights with a two-step method: (1) we copyright the
+library, and (2) we offer you this license, which gives you legal
+permission to copy, distribute and/or modify the library.
+
+ To protect each distributor, we want to make it very clear that
+there is no warranty for the free library. Also, if the library is
+modified by someone else and passed on, the recipients should know
+that what they have is not the original version, so that the original
+author's reputation will not be affected by problems that might be
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+
+ Finally, software patents pose a constant threat to the existence of
+any free program. We wish to make sure that a company cannot
+effectively restrict the users of a free program by obtaining a
+restrictive license from a patent holder. Therefore, we insist that
+any patent license obtained for a version of the library must be
+consistent with the full freedom of use specified in this license.
+
+ Most GNU software, including some libraries, is covered by the
+ordinary GNU General Public License. This license, the GNU Lesser
+General Public License, applies to certain designated libraries, and
+is quite different from the ordinary General Public License. We use
+this license for certain libraries in order to permit linking those
+libraries into non-free programs.
+
+ When a program is linked with a library, whether statically or using
+a shared library, the combination of the two is legally speaking a
+combined work, a derivative of the original library. The ordinary
+General Public License therefore permits such linking only if the
+entire combination fits its criteria of freedom. The Lesser General
+Public License permits more lax criteria for linking other code with
+the library.
+
+ We call this license the "Lesser" General Public License because it
+does Less to protect the user's freedom than the ordinary General
+Public License. It also provides other free software developers Less
+of an advantage over competing non-free programs. These disadvantages
+are the reason we use the ordinary General Public License for many
+libraries. However, the Lesser license provides advantages in certain
+special circumstances.
+
+ For example, on rare occasions, there may be a special need to
+encourage the widest possible use of a certain library, so that it becomes
+a de-facto standard. To achieve this, non-free programs must be
+allowed to use the library. A more frequent case is that a free
+library does the same job as widely used non-free libraries. In this
+case, there is little to gain by limiting the free library to free
+software only, so we use the Lesser General Public License.
+
+ In other cases, permission to use a particular library in non-free
+programs enables a greater number of people to use a large body of
+free software. For example, permission to use the GNU C Library in
+non-free programs enables many more people to use the whole GNU
+operating system, as well as its variant, the GNU/Linux operating
+system.
+
+ Although the Lesser General Public License is Less protective of the
+users' freedom, it does ensure that the user of a program that is
+linked with the Library has the freedom and the wherewithal to run
+that program using a modified version of the Library.
+
+ The precise terms and conditions for copying, distribution and
+modification follow. Pay close attention to the difference between a
+"work based on the library" and a "work that uses the library". The
+former contains code derived from the library, whereas the latter must
+be combined with the library in order to run.
+
+ GNU LESSER GENERAL PUBLIC LICENSE
+ TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+ 0. This License Agreement applies to any software library or other
+program which contains a notice placed by the copyright holder or
+other authorized party saying it may be distributed under the terms of
+this Lesser General Public License (also called "this License").
+Each licensee is addressed as "you".
+
+ A "library" means a collection of software functions and/or data
+prepared so as to be conveniently linked with application programs
+(which use some of those functions and data) to form executables.
+
+ The "Library", below, refers to any such software library or work
+which has been distributed under these terms. A "work based on the
+Library" means either the Library or any derivative work under
+copyright law: that is to say, a work containing the Library or a
+portion of it, either verbatim or with modifications and/or translated
+straightforwardly into another language. (Hereinafter, translation is
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+
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+ END OF TERMS AND CONDITIONS
diff --git a/src/plugins/dive/licence/headache_config.txt b/src/plugins/dive/licence/headache_config.txt
new file mode 100644
index 00000000000..c6b023c38b0
--- /dev/null
+++ b/src/plugins/dive/licence/headache_config.txt
@@ -0,0 +1,80 @@
+##################
+# Objective Caml #
+##################
+| ".*\.mly" -> frame open:"/*" line:"*" close:"*/"
+| ".*\.ml[il4]?.*" -> frame open:"(*" line:"*" close:"*)"
+
+############
+# C source #
+############
+| ".*\.h" -> frame open:"/*" line:"*" close:"*/"
+| ".*\.i" -> frame open:"/*" line:"*" close:"*/"
+| ".*\.c" -> frame open:"/*" line:"*" close:"*/"
+| ".*\.ast" -> frame open:"//" line:" " close:" "
+| ".*\.cc" -> frame open:"/*" line:"*" close:"*/"
+| "perfcount.c.in" -> frame open: "/*" line: "*" close: "*/"
+
+#######
+# Asm #
+#######
+| ".*\.S" -> frame open:"/*" line:"*" close:"*/"
+
+#############
+# Configure #
+#############
+| ".*config\.h\.in" -> frame open:"/*" line:"*" close:"*/"
+| ".*configure\..*" -> frame open:"#" line:"#" close:"#"
+
+############
+# Makefile #
+############
+| ".*Make.*" -> frame open:"#" line:"#" close:"#"
+
+#################
+# Shell scripts #
+#################
+| ".*\.sh" -> frame open:"#" line:"#" close:"#"
+
+#########################
+# MS-Windows Ressources #
+#########################
+| ".*\.rc" -> frame open:"#" line:"#" close:"#"
+
+#############
+# man pages #
+#############
+| ".*\.[1-9]" -> frame open:".\\\"" line: " " close:""
+
+#############
+# Why files #
+#############
+| ".*\.why" -> frame open: "(*" line: "*" close: "*)"
+| ".*\.why\.src" -> frame open: "(*" line: "*" close: "*)"
+
+#############
+# Coq files #
+#############
+| ".*\.v" -> frame open: "(*" line: "*" close: "*)"
+
+########
+# HTML #
+########
+| ".*\.htm.*" -> frame open: "<!--" line: " " close: "-->"
+
+#######
+# CSS #
+#######
+| ".*\.css" -> frame open: "/*" line: "*" close: "*/"
+# plug-in's ocamldoc introductions
+| "intro_.*\.txt" -> frame open: "@ignore" line: " " close: ""
+
+##############
+# Emacs Lisp #
+##############
+| ".*\.el" -> frame open: ";" line: ";" close:";"
+
+##############
+# Misc files #
+##############
+| "make_release" -> frame open:"#" line:"#" close:"#"
+| "FAQ" -> frame open:"#" line:"#" close:"#"
diff --git a/src/plugins/dive/main.ml b/src/plugins/dive/main.ml
new file mode 100644
index 00000000000..f7e36da0e94
--- /dev/null
+++ b/src/plugins/dive/main.ml
@@ -0,0 +1,65 @@
+(**************************************************************************)
+(* *)
+(* This file is part of the Frama-C plug-in `IIG'. *)
+(* *)
+(* Copyright (C) 2018 *)
+(* CEA (Commissariat à l'énergie atomique et aux énergies *)
+(* alternatives) *)
+(* *)
+(* you can redistribute it and/or modify it under the terms of the GNU *)
+(* Lesser General Public License as published by the Free Software *)
+(* Foundation, version 2.1. *)
+(* *)
+(* It 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 Lesser General Public License for more details. *)
+(* *)
+(* See the GNU Lesser General Public License version 2.1 *)
+(* for more details (enclosed in the file licenses/LGPLv2.1). *)
+(* *)
+(**************************************************************************)
+
+let main () =
+ if Self.Run.get () then begin
+ if Self.Lval.is_default () then
+ Self.abort "You must provide a lval wtih the option %s"
+ Self.Lval.option_name;
+ if Self.StatementId.is_default () then
+ Self.abort "You must provide a stmt with the option %s"
+ Self.StatementId.option_name;
+ let lval_text = Self.Lval.get () in
+ let sid = Self.StatementId.get () in
+ (* Statement *)
+ let stmt, kf =
+ try
+ Kernel_function.find_from_sid sid
+ with Not_found ->
+ Self.abort "Cannot find the statement with sid %d." sid
+ in
+ (* Lval *)
+ let lval =
+ try
+ let loc = Cil_datatype.Stmt.loc stmt in
+ let term = !Db.Properties.Interp.term kf ~loc lval_text in
+ !Db.Properties.Interp.term_to_lval ~result:None term
+ with
+ | Parsing.Parse_error ->
+ Self.abort "Syntax error when parsing: %s" lval_text
+ | Logic_interp.Error (_, s) ->
+ Self.abort "%s" s
+ | Db.Properties.Interp.No_conversion ->
+ Self.abort "The given term is not an lvalue: %s" lval_text
+ in
+ (* Compute *)
+ let kinstr = Cil_types.Kstmt stmt in
+ let graph = Build.compute kinstr lval in
+ (* Output *)
+ let out_channel = open_out "imprecisions.dot" in
+ Imprecision_graph.ouptput_to_dot out_channel graph;
+ close_out out_channel
+ end
+
+let () =
+ Db.Main.extend main
+
diff --git a/src/plugins/dive/self.ml b/src/plugins/dive/self.ml
new file mode 100644
index 00000000000..ebb0a2f636f
--- /dev/null
+++ b/src/plugins/dive/self.ml
@@ -0,0 +1,50 @@
+(**************************************************************************)
+(* *)
+(* This file is part of the Frama-C plug-in `IIG'. *)
+(* *)
+(* Copyright (C) 2018 *)
+(* CEA (Commissariat à l'énergie atomique et aux énergies *)
+(* alternatives) *)
+(* *)
+(* you can redistribute it and/or modify it under the terms of the GNU *)
+(* Lesser General Public License as published by the Free Software *)
+(* Foundation, version 2.1. *)
+(* *)
+(* It 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 Lesser General Public License for more details. *)
+(* *)
+(* See the GNU Lesser General Public License version 2.1 *)
+(* for more details (enclosed in the file licenses/LGPLv2.1). *)
+(* *)
+(**************************************************************************)
+
+include Plugin.Register
+ (struct
+ let name = "iig"
+ let shortname = "iig"
+ let help = "An interactive imprecision graph generator."
+ end)
+
+module Run = False
+ (struct
+ let option_name = "-iig"
+ let help = "Generates an interactive imprecision graph from Eva results."
+ end)
+
+module Lval = String
+ (struct
+ let option_name = "-iig-lval"
+ let help = "The lval for which the dependency graph must be generated"
+ let default = ""
+ let arg_name = "lval"
+ end)
+
+module StatementId = Int
+ (struct
+ let option_name = "-iig-sid"
+ let help = "The statement id in which the lval must be evaluated"
+ let default = -1
+ let arg_name = "sid"
+ end)
diff --git a/src/plugins/dive/self.mli b/src/plugins/dive/self.mli
new file mode 100644
index 00000000000..55c0d29413f
--- /dev/null
+++ b/src/plugins/dive/self.mli
@@ -0,0 +1,28 @@
+(**************************************************************************)
+(* *)
+(* This file is part of the Frama-C plug-in `IIG'. *)
+(* *)
+(* Copyright (C) 2018 *)
+(* CEA (Commissariat à l'énergie atomique et aux énergies *)
+(* alternatives) *)
+(* *)
+(* you can redistribute it and/or modify it under the terms of the GNU *)
+(* Lesser General Public License as published by the Free Software *)
+(* Foundation, version 2.1. *)
+(* *)
+(* It 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 Lesser General Public License for more details. *)
+(* *)
+(* See the GNU Lesser General Public License version 2.1 *)
+(* for more details (enclosed in the file licenses/LGPLv2.1). *)
+(* *)
+(**************************************************************************)
+
+include Plugin.S
+
+module Run: Parameter_sig.Bool
+module Lval: Parameter_sig.String
+module StatementId: Parameter_sig.Int
+
--
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