568 lines
21 KiB
Standard ML
568 lines
21 KiB
Standard ML
(*
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* Copyright 2020, Data61, CSIRO (ABN 41 687 119 230)
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*)
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signature ISAR_INSTALL =
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sig
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type additional_options
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val GhostState : string -> additional_options
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val get_Csyntax : theory -> string -> Absyn.ext_decl list
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val gen_umm_types_file : string -> string -> theory -> theory
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val do_cpp : {error_detail : int, cpp_path : string option} ->
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{includes : string list, filename : string} -> string * bool
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val install_C_file : (((bool option * bool option) * bool option) * string) *
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additional_options list option ->
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theory -> theory
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val interactive_install : string -> theory -> theory
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val mk_thy_relative : theory -> string -> string
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val extra_trace_filename : string Config.T
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val cpp_path : string Config.T
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val installed_C_files : theory
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-> {c_filename : string, locale_names : string list,
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options: (bool * bool * bool),
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additional_options: additional_options list} list
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end
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structure IsarInstall : ISAR_INSTALL =
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struct
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type 'a wrap = 'a Region.Wrap.t
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fun setup_feedback extra_output_filename = let
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val trace_extra = case extra_output_filename of
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NONE => K ()
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| SOME f => let
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val out = TextIO.openOut f
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in fn s => (TextIO.output (out, s); TextIO.flushOut out) end
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val add_extra = case extra_output_filename of
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NONE => (fn _ => fn f => f)
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| SOME _ => (fn pfx => fn f => fn s => (trace_extra (pfx ^ s); f s))
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in
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Feedback.errorf := add_extra "ERROR: " (ignore o error);
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Feedback.warnf := add_extra "" warning;
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Feedback.informf := add_extra "" (Output.tracing o Feedback.timestamp)
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end
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val extra_trace_filename = let
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val (config, setup) =
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Attrib.config_string @{binding "CParser_extra_trace_file"} (K "")
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in
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Context.>>(Context.map_theory setup);
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config
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end
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fun setup_feedback_thy thy = let
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val str = Config.get_global thy extra_trace_filename
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in setup_feedback (if str = "" then NONE else SOME str) end
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val _ = setup_feedback NONE
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structure C_Includes = Theory_Data
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(struct
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type T = string list
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val empty = []
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val merge = Library.merge (op =)
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end);
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datatype additional_options = MachineState of string | GhostState of string | CRoots of string list
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type install_data = {c_filename : string, locale_names : string list,
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options: (bool * bool * bool),
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additional_options: additional_options list}
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structure C_Installs = Theory_Data
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(struct
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type T = install_data list
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val empty = []
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val merge = Library.merge (op =)
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end);
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val installed_C_files = C_Installs.get
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structure IsaPath = Path
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val get_Cdir = Resources.master_directory
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fun mk_thy_relative thy s =
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if OS.Path.isRelative s then OS.Path.concat(Path.implode (get_Cdir thy), s)
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else s
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val cpp_path = let
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val (cpp_path_config, cpp_path_setup) =
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Attrib.config_string (Binding.name "cpp_path") (K "/usr/bin/cpp")
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in
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Context.>>(Context.map_theory cpp_path_setup);
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cpp_path_config
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end
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val munge_info_fname = let
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val (mifname_config, mifname_setup) =
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Attrib.config_string (Binding.name "munge_info_fname") (K "")
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in
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Context.>>(Context.map_theory mifname_setup);
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mifname_config
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end
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val report_cpp_errors = let
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val (report_cpp_errors_config, report_cpp_errors_setup) =
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Attrib.config_int (Binding.name "report_cpp_errors") (K 10)
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in
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Context.>>(Context.map_theory report_cpp_errors_setup);
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report_cpp_errors_config
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end
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fun do_cpp {error_detail, cpp_path} {includes, filename} =
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case cpp_path of
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NONE => (File.standard_path (Path.explode filename), false)
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| SOME p =>
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let
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open OS.FileSys OS.Process
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val tmpname = tmpName()
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val err_tmpname = tmpName()
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val includes_string = String.concat (map (fn s => "-I\""^s^"\" ") includes)
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fun plural 1 = "" | plural _ = "s"
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val cmdline =
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p ^ " " ^ includes_string ^ " -CC \"" ^ filename ^ "\" > " ^ tmpname ^ " 2> " ^ err_tmpname
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in
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if isSuccess (system cmdline)
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then (OS.FileSys.remove err_tmpname; (tmpname, true))
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else let val _ = OS.FileSys.remove tmpname
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val (msg, rest) = File.read_lines (Path.explode err_tmpname) |> chop error_detail
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val _ = OS.FileSys.remove err_tmpname
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val _ = warning ("cpp failed on " ^ filename ^ "\nCommand: " ^ cmdline ^
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"\n\nOutput:\n" ^
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cat_lines (msg @ (if null rest then [] else
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["(... " ^ string_of_int (length rest) ^
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" more line" ^ plural (length rest) ^ ")"])))
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in raise Feedback.WantToExit ("cpp failed on " ^ filename) end
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end
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fun get_Csyntax thy s = let
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val _ = setup_feedback_thy thy
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val cpp_option =
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case Config.get_global thy cpp_path of
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"" => NONE
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| s => SOME s
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val cpp_error_count = Config.get_global thy report_cpp_errors
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val (ast0, _) =
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StrictCParser.parse
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(do_cpp {error_detail = cpp_error_count, cpp_path = cpp_option})
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15
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(C_Includes.get thy)
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(mk_thy_relative thy s)
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handle IO.Io {name, ...} => error ("I/O error on "^name)
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in
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ast0 |> SyntaxTransforms.remove_anonstructs |> SyntaxTransforms.remove_typedefs
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end
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fun define_naming_scheme [] _ = I
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| define_naming_scheme fninfo nmdefs = let
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fun name_term fni = SOME (HOLogic.mk_string (#fname fni))
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fun name_name fni = #fname fni ^ "_name"
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in StaticFun.define_tree_and_thms_with_defs
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(Binding.name NameGeneration.naming_scheme_name)
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(map name_name fninfo) nmdefs
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(map name_term fninfo) @{term "id :: int => int"}
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#> snd end
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fun define_function_names fninfo thy = let
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open Feedback
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fun decl1 (fni, (n, defs, lthy)) = let
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open TermsTypes
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val cname = suffix HoarePackage.proc_deco (#fname fni)
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val _ = informStr (4, "Adding ("^cname^" :: int) = "^Int.toString n)
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val b = Binding.name cname
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val ((_, (_, th)), lthy) =
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lthy
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|> Local_Theory.begin_nested |> snd
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|>Local_Theory.define ((b, NoSyn),
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((Thm.def_binding b, []), mk_int_numeral n))
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val lthy' = Local_Theory.end_nested lthy
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val morph = Proof_Context.export_morphism lthy lthy'
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val th' = Morphism.thm morph th
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in
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(n + 1, th' :: defs, lthy')
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end
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val (_, defs, lthy) =
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List.foldl decl1 (1, [], Named_Target.theory_init thy) fninfo
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val lthy' = define_naming_scheme fninfo (List.rev defs) lthy
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in
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(defs, Local_Theory.exit_global lthy')
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end
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fun print_addressed_vars cse = let
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open ProgramAnalysis Feedback
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val globs = get_globals cse
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val _ = informStr (0, "There are "^Int.toString (length globs)^" globals: "^
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commas_quote (map srcname globs))
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val addressed = get_addressed cse
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val addr_vars = map MString.dest (MSymTab.keys addressed)
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val _ = informStr (0, "There are "^Int.toString (length addr_vars)^
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" addressed variables: "^ commas_quote addr_vars)
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in
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()
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end
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fun define_global_initializers globloc msgpfx name_munger mungedb cse globs thy = let
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open ProgramAnalysis Absyn
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val lthy = Named_Target.init [] globloc thy
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val globinits = let
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val inittab = get_globinits cse
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fun foldthis (gnm : MString.t, gty) defs = let
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val rhs_opt = MSymTab.lookup inittab gnm
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val rhs_t =
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case rhs_opt of
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NONE => ExpressionTranslation.zero_term thy (get_senv cse) gty
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| SOME rhs => let
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open ExpressionTranslation
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fun error _ = (Feedback.errorStr'(eleft rhs, eright rhs,
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"Illegal form in initialisor for\
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\ global");
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raise Fail "Bad global initialisation")
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val fakeTB = TermsTypes.TB {var_updator = error, var_accessor = error,
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rcd_updator = error, rcd_accessor = error}
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fun varinfo s = stmt_translation.state_varlookup "" s mungedb
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val ei = expr_term lthy cse fakeTB varinfo rhs
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val ei = case gty of
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Array _ => ei
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| _ => typecast(thy,gty,ei)
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in
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rval_of ei (Free("x", TermsTypes.bool))
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(* the Free("x",bool) is arbitrary as the constant
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expression should be ignoring the state argument *)
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end
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in
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(gnm, gty, rhs_t) :: defs
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end
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in
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MSymTab.fold foldthis globs []
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end
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fun define1 ((nm, ty, value), lthy) = let
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open Feedback
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val _ = informStr(2,
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msgpfx ^ MString.dest nm ^ " (of C type "^
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Absyn.tyname ty ^") to have value "^
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Syntax.string_of_term lthy value)
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val b = Binding.name (MString.dest (name_munger nm))
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val (_, lthy) =
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Local_Theory.define
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((b, NoSyn), ((Thm.def_binding b, []), value))
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lthy
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in
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lthy
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end
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in
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List.foldl define1 lthy globinits
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|> Local_Theory.exit_global
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end
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val use_anon_vars = let
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val (uavconfig, uavsetup) = Attrib.config_bool (Binding.name "use_anonymous_local_variables") (K false)
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in
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Context.>>(Context.map_theory uavsetup);
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uavconfig
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end
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val allow_underscore_idents = let
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val (auiconfig, auisetup) = Attrib.config_bool (Binding.name "allow_underscore_idents") (K false)
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in
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Context.>>(Context.map_theory auisetup);
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auiconfig
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end
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fun get_callees cse slist = let
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val {callgraph = cg,...} = ProgramAnalysis.compute_callgraphs cse
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fun recurse acc worklist =
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case worklist of
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[] => acc
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| fnname :: rest =>
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if Binaryset.member(acc, fnname) then recurse acc rest
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else
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case Symtab.lookup cg fnname of
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NONE => recurse (Binaryset.add(acc, fnname)) rest
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| SOME set => recurse (Binaryset.add(acc, fnname))
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(Binaryset.listItems set @ rest)
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in
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recurse (Binaryset.empty String.compare) slist
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end
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fun install_C_file0 (((((memsafe),ctyps),cdefs),s),statetylist_opt) thy = let
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val _ = setup_feedback_thy thy
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val {base = localename,...} = OS.Path.splitBaseExt (OS.Path.file s)
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val _ = not (Long_Name.is_qualified localename) orelse
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raise Fail ("Base of filename looks like qualified Isabelle ID: "^
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localename)
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val _ = localename <> "" orelse
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raise Fail ("Filename (>'" ^ s ^
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"'<) gives \"\" as locale name, which is illegal")
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val statetylist = case statetylist_opt of NONE => [] | SOME l => List.rev l
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val mstate_ty =
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case get_first (fn (MachineState s) => SOME s | _ => NONE) statetylist of
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NONE => TermsTypes.nat
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| SOME s => Syntax.read_typ_global thy s
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val roots_opt =
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get_first (fn CRoots slist => SOME slist | _ => NONE) statetylist
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val gstate_ty =
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case get_first (fn (GhostState s) => SOME s | _ => NONE) statetylist of
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NONE => TermsTypes.unit
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| SOME s => Syntax.read_typ_global thy s
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val thy = Config.put_global CalculateState.current_C_filename s thy
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val thy = CalculateState.store_ghostty (s, gstate_ty) thy
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val anon_vars = Config.get_global thy use_anon_vars
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val uscore_idents = Config.get_global thy allow_underscore_idents
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val o2b = isSome
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val install_typs = not (o2b cdefs) orelse (o2b ctyps)
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val install_defs = not (o2b ctyps) orelse (o2b cdefs)
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val ms = o2b memsafe
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val ast = get_Csyntax thy s
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open ProgramAnalysis CalculateState Feedback
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val owners =
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(* non-null if there are any globals that have owned_by annotations *)
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let
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open StmtDecl RegionExtras
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fun getowner d =
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case d of
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Decl d =>
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(case node d of
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VarDecl (_, _, _, _, attrs) => get_owned_by attrs
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| _ => NONE)
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| _ => NONE
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in
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List.mapPartial getowner ast
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end
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val mifname = case Config.get_global thy munge_info_fname of
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"" => NONE
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| s => SOME s
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val ((ast, _ (* init_stmts *)), cse) =
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process_decls {anon_vars=anon_vars,owners = owners,
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allow_underscore_idents = uscore_idents,
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munge_info_fname = mifname}
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ast
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val () = export_mungedb cse
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val thy = store_csenv (s, cse) thy
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val _ = print_addressed_vars cse
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val ecenv = cse2ecenv cse
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val thy = define_enum_consts ecenv thy
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val state = create_state cse
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val (thy, rcdinfo) = mk_thy_types cse install_typs thy
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val ast = SyntaxTransforms.remove_embedded_fncalls cse ast
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in
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if install_defs then let
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val (thy, vdecls, globs) =
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mk_thy_decls
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state {owners=owners,gstate_ty=gstate_ty,mstate_ty=mstate_ty} thy
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val loc_b = Binding.name (suffix HPInter.globalsN localename)
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val (globloc, ctxt) =
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Expression.add_locale loc_b loc_b [] ([], []) globs thy
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val thy = Local_Theory.exit_global ctxt
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val _ = Output.state ("Created locale for globals (" ^ Binding.print loc_b ^
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")- with " ^ Int.toString (length globs) ^
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" globals elements")
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val _ = app (fn e => Output.state ("-- " ^ HPInter.asm_to_string (Syntax.string_of_term ctxt) e))
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globs
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val mungedb = mk_mungedb vdecls
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val thy = CalculateState.store_mungedb (s, mungedb) thy
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val thy =
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define_global_initializers globloc "Defining untouched global constant "
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NameGeneration.untouched_global_name
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mungedb
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cse
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(calc_untouched_globals cse)
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thy
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val thy =
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if Config.get_global thy CalculateState.record_globinits then let
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val globs0 = get_globals cse
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val globs_types = map (fn vi => (get_mname vi, get_vi_type vi)) globs0
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val glob_table = MSymTab.make globs_types
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in
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define_global_initializers
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globloc "Defining initializers for all globals "
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NameGeneration.global_initializer_name
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mungedb
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cse
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glob_table
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thy
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end
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else (Feedback.informStr (0,
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"Ignoring initialisations of modified globals (if any)");
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thy)
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open TermsTypes
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val (globty, styargs) = let
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val globty0 = Type(Sign.intern_type thy
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NameGeneration.global_rcd_name, [])
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val globty = expand_tyabbrevs (thy2ctxt thy) globty0
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val statetype0 =
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Type(Sign.intern_type thy NameGeneration.local_rcd_name, [globty])
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val statetype = expand_tyabbrevs (thy2ctxt thy) statetype0
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(* only happens if no local variables, = no functions declared,
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= pretty bogus
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(decl_only and bigstruct test cases are like this though) *)
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handle TYPE _ => alpha
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in
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(globty, [statetype, int, StrictC_errortype_ty])
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end
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val toTranslate = Option.map (get_callees cse) roots_opt
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val toTranslate_s =
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case toTranslate of
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NONE => "all functions"
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| SOME set => "functions " ^
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String.concatWith ", " (Binaryset.listItems set) ^
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" (derived from "^
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String.concatWith ", " (valOf roots_opt) ^ ")"
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val _ =
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Feedback.informStr (0, "Beginning function translation for " ^
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toTranslate_s)
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val toTranslateP =
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case toTranslate of
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NONE => (fn _ => true)
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| SOME set => (fn s => Binaryset.member(set,s))
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val fninfo : HPInter.fninfo list = HPInter.mk_fninfo thy cse toTranslateP ast
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val (nmdefs, thy) = define_function_names fninfo thy
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val compile_bodies =
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stmt_translation.define_functions (globty, styargs)
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mungedb
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cse
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fninfo
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rcdinfo
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ms
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val (loc2, thy) =
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HPInter.make_function_definitions localename
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cse
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styargs
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(List.rev nmdefs)
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fninfo
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compile_bodies
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globloc
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globs
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thy
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val thy =
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if not (Symtab.is_empty (get_defined_functions cse)) then
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Modifies_Proofs.prove_all_modifies_goals thy cse toTranslateP styargs loc2
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else thy (* like this is ever going to happen *)
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in
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C_Installs.map (fn ss =>
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{c_filename = s, locale_names = [globloc, loc2],
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options = (ms, install_typs, install_defs),
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additional_options = statetylist} :: ss) thy
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end
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else
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C_Installs.map (fn ss =>
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{c_filename = s, locale_names = [],
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options = (ms, install_typs, install_defs),
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additional_options = statetylist} :: ss) thy
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end handle e as TYPE (s,tys,tms) =>
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(Feedback.informStr (0, s ^ "\n" ^
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Int.toString (length tms) ^ " term(s): " ^
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String.concatWith
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", "
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(map (Syntax.string_of_term @{context}) tms) ^ "\n" ^
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Int.toString (length tys) ^ " type(s): "^
|
|
String.concatWith
|
|
", "
|
|
(map (Syntax.string_of_typ @{context}) tys));
|
|
raise e)
|
|
|
|
fun install_C_file args thy =
|
|
thy |> install_C_file0 args
|
|
|> Config.put_global CalculateState.current_C_filename ""
|
|
|
|
(* for interactive debugging/testing *)
|
|
fun interactive_install s thy =
|
|
install_C_file ((((NONE, NONE), NONE), s), NONE) thy
|
|
handle TYPE (s,tys,tms) =>
|
|
(Feedback.informStr (0, s ^ "\n" ^
|
|
Int.toString (length tms) ^ " term(s): " ^
|
|
String.concatWith
|
|
", "
|
|
(map (Syntax.string_of_term @{context}) tms) ^ "\n" ^
|
|
Int.toString (length tys) ^ " type(s): "^
|
|
String.concatWith
|
|
", "
|
|
(map (Syntax.string_of_typ @{context}) tys));
|
|
thy);
|
|
|
|
|
|
fun install_C_types s thy = let
|
|
open CalculateState ProgramAnalysis
|
|
val ast = get_Csyntax thy s
|
|
val (_, cse) =
|
|
process_decls {
|
|
anon_vars = Config.get_global thy use_anon_vars,
|
|
allow_underscore_idents = Config.get_global thy allow_underscore_idents,
|
|
munge_info_fname = NONE,
|
|
owners = []} ast
|
|
val (thy, _) = mk_thy_types cse true thy
|
|
in
|
|
thy
|
|
end
|
|
|
|
fun gen_umm_types_file inputfile outputfile thy = let
|
|
open ProgramAnalysis
|
|
val ast = get_Csyntax thy inputfile
|
|
val (_, cse) =
|
|
process_decls {
|
|
anon_vars = Config.get_global thy use_anon_vars,
|
|
allow_underscore_idents = Config.get_global thy allow_underscore_idents,
|
|
munge_info_fname = NONE,
|
|
owners = []} ast
|
|
val _ = CalculateState.gen_umm_types_file cse outputfile
|
|
in
|
|
thy
|
|
end
|
|
|
|
val memsafeN = "memsafe"
|
|
val typesN = "c_types"
|
|
val defsN = "c_defs"
|
|
val mtypN = "machinety"
|
|
val ghosttypN = "ghostty"
|
|
val rootsN = "roots"
|
|
|
|
local
|
|
structure P = Parse
|
|
structure K = Keyword
|
|
in
|
|
fun new_include s thy = C_Includes.map (fn sl => mk_thy_relative thy s::sl) thy
|
|
|
|
val _ = Outer_Syntax.command @{command_keyword "new_C_include_dir"}
|
|
"add a directory to the include path"
|
|
(P.embedded >> (Toplevel.theory o new_include))
|
|
|
|
val file_inclusion = let
|
|
val typoptions =
|
|
P.reserved mtypN |-- (P.$$$ "=" |-- P.embedded >> MachineState) ||
|
|
P.reserved ghosttypN |-- (P.$$$ "=" |-- P.embedded >> GhostState) ||
|
|
P.reserved rootsN |-- (P.$$$ "=" |-- (P.$$$ "[" |-- P.enum1 "," P.embedded --| P.$$$ "]") >> CRoots)
|
|
in
|
|
((Scan.option (P.$$$ memsafeN)) --
|
|
(Scan.option (P.$$$ typesN)) --
|
|
(Scan.option (P.$$$ defsN)) -- P.embedded --
|
|
(Scan.option
|
|
(P.$$$ "[" |-- P.enum1 "," typoptions --| P.$$$ "]"))) >>
|
|
(Toplevel.theory o install_C_file)
|
|
end
|
|
|
|
val _ =
|
|
Outer_Syntax.command
|
|
@{command_keyword "install_C_file"}
|
|
"import a C file"
|
|
file_inclusion
|
|
|
|
val _ =
|
|
Outer_Syntax.command
|
|
@{command_keyword "install_C_types"}
|
|
"install types from a C file"
|
|
(P.embedded >> (Toplevel.theory o install_C_types))
|
|
|
|
end
|
|
|
|
end; (* struct *)
|