bedrock.lang.cpp.logic.vbyte
(*
* Copyright (c) 2021 BlueRock Security, Inc.
* This software is distributed under the terms of the BedRock Open-Source License.
* See the LICENSE-BedRock file in the repository root for details.
*)
Require Import bedrock.lang.proofmode.proofmode.
Require Import iris.bi.lib.fractional.
Require Import bedrock.lang.cpp.logic.pred.
Require Import bedrock.lang.cpp.semantics.types.
Require Import bedrock.lang.cpp.semantics.genv.
Require Import bedrock.lang.cpp.semantics.values.
Require Import bedrock.prelude.addr.
Module Type VBYTE.
Parameter vbyte_at : forall `{Σ:cpp_logic} (q : Qp) (addr : N) (n : N), mpred.
(*vbyte_at q va n: Virtual address va contains byte n with
permission q.*)
Axiom vbyte_at_fractional :
forall `{Σ:cpp_logic} addr n, Fractional (λ q, vbyte_at q addr n).
#[global] Existing Instance vbyte_at_fractional.
Axiom vbyte_at_frac_valid :
forall `{Σ:cpp_logic} addr n (q : Qp),
Observe [| q ≤ 1 |]%Qp (vbyte_at q addr n).
#[global] Existing Instance vbyte_at_frac_valid.
Axiom vbyte_at_timeless :
forall `{Σ:cpp_logic} q addr n, Timeless (vbyte_at q addr n).
#[global] Existing Instance vbyte_at_timeless.
End VBYTE.
Declare Module Export Vbyte_impl : VBYTE.
Module Type PHANTDATA.
(*phantdata_at ty q p: In the C++ abstract machine, p previously
contained a ty-typed value with permission q. When you re-enter
the C++ virtual machine (via memory_entry), you combine
phantdata_at with a virtual points-to fact to get a C++-level
points-to.*)
Parameter phantdata_at :
forall `{Σ:cpp_logic} {σ:genv} (ty : Rtype) (q : Qp) (p : ptr), mpred.
(*
[global] Notation phantbyte_at := (phantdata_at Tuchar). global Notation phantshort_at := (phantdata_at Tushort).
[global] Notation phantword_at := (phantdata_at Tuint). global Notation phantdword_at := (phantdata_at Tulonglong).
*)
Axiom phantdata_at_fractional :
forall `{Σ:cpp_logic} {σ:genv} ty p, Fractional (λ q, phantdata_at ty q p).
#[global] Existing Instance phantdata_at_fractional.
Axiom phantdata_at_frac_valid :
forall `{Σ:cpp_logic} {σ:genv} ty (q : Qp) p,
Observe [| q ≤ 1 |]%Qp (phantdata_at ty q p).
#[global] Existing Instance phantdata_at_frac_valid.
Axiom phantdata_at_timeless :
forall `{Σ:cpp_logic} {σ:genv} ty q p, Timeless (phantdata_at ty q p).
#[global] Existing Instance phantdata_at_timeless.
End PHANTDATA.
Declare Module Export Phantdata_impl : PHANTDATA.
* Copyright (c) 2021 BlueRock Security, Inc.
* This software is distributed under the terms of the BedRock Open-Source License.
* See the LICENSE-BedRock file in the repository root for details.
*)
Require Import bedrock.lang.proofmode.proofmode.
Require Import iris.bi.lib.fractional.
Require Import bedrock.lang.cpp.logic.pred.
Require Import bedrock.lang.cpp.semantics.types.
Require Import bedrock.lang.cpp.semantics.genv.
Require Import bedrock.lang.cpp.semantics.values.
Require Import bedrock.prelude.addr.
Module Type VBYTE.
Parameter vbyte_at : forall `{Σ:cpp_logic} (q : Qp) (addr : N) (n : N), mpred.
(*vbyte_at q va n: Virtual address va contains byte n with
permission q.*)
Axiom vbyte_at_fractional :
forall `{Σ:cpp_logic} addr n, Fractional (λ q, vbyte_at q addr n).
#[global] Existing Instance vbyte_at_fractional.
Axiom vbyte_at_frac_valid :
forall `{Σ:cpp_logic} addr n (q : Qp),
Observe [| q ≤ 1 |]%Qp (vbyte_at q addr n).
#[global] Existing Instance vbyte_at_frac_valid.
Axiom vbyte_at_timeless :
forall `{Σ:cpp_logic} q addr n, Timeless (vbyte_at q addr n).
#[global] Existing Instance vbyte_at_timeless.
End VBYTE.
Declare Module Export Vbyte_impl : VBYTE.
Module Type PHANTDATA.
(*phantdata_at ty q p: In the C++ abstract machine, p previously
contained a ty-typed value with permission q. When you re-enter
the C++ virtual machine (via memory_entry), you combine
phantdata_at with a virtual points-to fact to get a C++-level
points-to.*)
Parameter phantdata_at :
forall `{Σ:cpp_logic} {σ:genv} (ty : Rtype) (q : Qp) (p : ptr), mpred.
(*
[global] Notation phantbyte_at := (phantdata_at Tuchar). global Notation phantshort_at := (phantdata_at Tushort).
[global] Notation phantword_at := (phantdata_at Tuint). global Notation phantdword_at := (phantdata_at Tulonglong).
*)
Axiom phantdata_at_fractional :
forall `{Σ:cpp_logic} {σ:genv} ty p, Fractional (λ q, phantdata_at ty q p).
#[global] Existing Instance phantdata_at_fractional.
Axiom phantdata_at_frac_valid :
forall `{Σ:cpp_logic} {σ:genv} ty (q : Qp) p,
Observe [| q ≤ 1 |]%Qp (phantdata_at ty q p).
#[global] Existing Instance phantdata_at_frac_valid.
Axiom phantdata_at_timeless :
forall `{Σ:cpp_logic} {σ:genv} ty q p, Timeless (phantdata_at ty q p).
#[global] Existing Instance phantdata_at_timeless.
End PHANTDATA.
Declare Module Export Phantdata_impl : PHANTDATA.