main.ml

   1 (*
   2  * Copyright 2012, INRIA
   3  * Julia Lawall, Gilles Muller
   4  * Copyright 2010-2011, INRIA, University of Copenhagen
   5  * Julia Lawall, Rene Rydhof Hansen, Gilles Muller, Nicolas Palix
   6  * Copyright 2005-2009, Ecole des Mines de Nantes, University of Copenhagen
   7  * Yoann Padioleau, Julia Lawall, Rene Rydhof Hansen, Henrik Stuart, Gilles Muller, Nicolas Palix
   8  * This file is part of Coccinelle.
   9  *
  10  * Coccinelle is free software: you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation, according to version 2 of the License.
  13  *
  14  * Coccinelle is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with Coccinelle.  If not, see <http://www.gnu.org/licenses/>.
  21  *
  22  * The authors reserve the right to distribute this or future versions of
  23  * Coccinelle under other licenses.
  24  *)
  25
  26
  27 # 0 "./main.ml"
  28 open Common
  29 module FC = Flag_cocci
  30
  31 (*****************************************************************************)
  32 (* Flags *)
  33 (*****************************************************************************)
  34
  35 (* In addition to flags that can be tweaked via -xxx options (cf the
  36  * full list of options in "the spatch options" section below), the
  37  * spatch program also depends on external files, described in
  38  * globals/config.ml, mainly a standard.h and standard.iso file *)
  39
  40 let cocci_file = ref ""
  41
  42 let output_file = ref ""
  43 let inplace_modif = ref false  (* but keeps nothing *)
  44 let backup_suffix =
  45   ref (None : string option) (* suffix for backup if one is desired *)
  46 let outplace_modif = ref false (* generates a .cocci_res  *)
  47 let preprocess = ref false     (* run the C preprocessor before cocci *)
  48 let compat_mode = ref false
  49 let ignore_unknown_opt = ref false
  50
  51 (* somehow obsolete now *)
  52 let dir = ref false
  53
  54 let kbuild_info = ref ""
  55
  56 let macro_file = ref ""
  57
  58 (* test mode *)
  59 let test_mode = ref false
  60 let test_all = ref false
  61 let test_okfailed = ref false
  62 let test_regression_okfailed = ref false
  63 let expected_score_file = ref ""
  64 let allow_update_score_file = ref true
  65
  66 (* action mode *)
  67 let action = ref ""
  68
  69 (* works with -test but also in "normal" spatch mode *)
  70 let compare_with_expected = ref false
  71
  72 let distrib_index = ref (None : int option)
  73 let distrib_max   = ref (None : int option)
  74 let mod_distrib   = ref false
  75
  76 (*****************************************************************************)
  77 (* Profiles *)
  78 (*****************************************************************************)
  79
  80 (* pair of  (list of flags to set true, list of flags to set false *)
  81 let very_quiet_profile = (
  82   [
  83   ],
  84   [
  85     (* FC.show_diff;   just leave this as it is *)
  86
  87     Common.print_to_stderr;
  88     Flag.show_misc;
  89     Flag.show_trying;
  90     Flag.show_transinfo;
  91
  92     FC.show_c;
  93     FC.show_cocci;
  94     FC.show_flow;
  95     FC.show_before_fixed_flow;
  96     FC.show_ctl_tex;
  97     FC.show_ctl_text;
  98     FC.show_binding_in_out;
  99
 100     FC.verbose_cocci;
 101
 102     Flag_parsing_c.show_parsing_error;
 103
 104     Flag_parsing_c.verbose_lexing;
 105     Flag_parsing_c.verbose_parsing;
 106     Flag_parsing_c.verbose_type;
 107     Flag_parsing_c.verbose_cfg;
 108     Flag_parsing_c.verbose_unparsing;
 109     Flag_parsing_c.verbose_visit;
 110     Flag_parsing_c.verbose_cpp_ast;
 111
 112     Flag_matcher.verbose_matcher;
 113     Flag_matcher.debug_engine;
 114
 115     Flag_parsing_c.debug_unparsing;
 116
 117     Flag_parsing_cocci.show_SP;
 118     Flag_parsing_cocci.show_iso_failures;
 119
 120     Flag_ctl.verbose_ctl_engine;
 121     Flag_ctl.verbose_match;
 122
 123
 124   ])
 125
 126 let quiet_profile = (
 127   [
 128     Common.print_to_stderr
 129   ],
 130   [
 131     (* FC.show_diff;   just leave this as it is *)
 132
 133     Flag.show_misc;
 134     Flag.show_trying;
 135     Flag.show_transinfo;
 136
 137     FC.show_c;
 138     FC.show_cocci;
 139     FC.show_flow;
 140     FC.show_before_fixed_flow;
 141     FC.show_ctl_tex;
 142     FC.show_ctl_text;
 143     FC.show_binding_in_out;
 144
 145     FC.verbose_cocci;
 146
 147     Flag_parsing_c.show_parsing_error;
 148
 149     Flag_parsing_c.verbose_lexing;
 150     Flag_parsing_c.verbose_parsing;
 151     Flag_parsing_c.verbose_type;
 152     Flag_parsing_c.verbose_cfg;
 153     Flag_parsing_c.verbose_unparsing;
 154     Flag_parsing_c.verbose_visit;
 155     Flag_parsing_c.verbose_cpp_ast;
 156
 157     Flag_matcher.verbose_matcher;
 158     Flag_matcher.debug_engine;
 159
 160     Flag_parsing_c.debug_unparsing;
 161
 162     Flag_parsing_cocci.show_SP;
 163     Flag_parsing_cocci.show_iso_failures;
 164
 165     Flag_ctl.verbose_ctl_engine;
 166     Flag_ctl.verbose_match;
 167
 168
 169   ])
 170
 171 (* some information that is useful in seeing why a semantic patch doesn't
 172 work properly *)
 173 let debug_profile = (
 174   [
 175     Common.print_to_stderr;
 176     Flag.show_misc;
 177     Flag.show_transinfo;
 178
 179     FC.show_diff;
 180     FC.show_cocci;
 181     FC.show_binding_in_out;
 182     FC.show_dependencies;
 183
 184     Flag_parsing_cocci.keep_ml_script;
 185     Flag_parsing_cocci.show_iso_failures;
 186
 187     FC.verbose_cocci;
 188
 189     Flag_parsing_c.verbose_cfg;
 190     Flag_parsing_c.verbose_unparsing;
 191     Flag_parsing_c.verbose_visit;
 192
 193     Flag_matcher.verbose_matcher;
 194
 195     Flag_parsing_c.show_parsing_error;
 196   ],
 197   [
 198
 199     Flag.show_misc;
 200
 201     FC.show_c;
 202     FC.show_flow;
 203     FC.show_before_fixed_flow;
 204     FC.show_ctl_tex;
 205     FC.show_ctl_text;
 206
 207     Flag_parsing_cocci.show_SP;
 208     Flag_ctl.verbose_ctl_engine;
 209     Flag_ctl.verbose_match;
 210     Flag_matcher.debug_engine;
 211     Flag_parsing_c.debug_unparsing;
 212     Flag_parsing_c.verbose_type;
 213     Flag_parsing_c.verbose_parsing;
 214   ])
 215
 216 let pad_profile = (
 217   [
 218     FC.show_diff;
 219     Common.print_to_stderr;
 220   ],
 221   [
 222
 223     Flag.show_misc;
 224     Flag.show_transinfo;
 225
 226     FC.show_c;
 227     FC.show_cocci;
 228     FC.show_flow;
 229     FC.show_before_fixed_flow;
 230     FC.show_ctl_tex;
 231     FC.show_ctl_text;
 232     FC.show_binding_in_out;
 233
 234     Flag_parsing_cocci.show_SP;
 235     Flag_parsing_cocci.show_iso_failures;
 236     Flag_ctl.verbose_ctl_engine;
 237     Flag_ctl.verbose_match;
 238     Flag_matcher.debug_engine;
 239     Flag_parsing_c.debug_unparsing;
 240     Flag_parsing_c.verbose_type;
 241     Flag_parsing_c.verbose_parsing;
 242   ])
 243
 244 let run_profile p =
 245   let (set_to_true, set_to_false) = p in
 246   List.iter (fun x -> x := false) set_to_false;
 247   List.iter (fun x -> x := true) set_to_true
 248
 249 (*****************************************************************************)
 250 (* The spatch options *)
 251 (*****************************************************************************)
 252
 253 let usage_msg =
 254   "Usage: " ^ basename Sys.argv.(0) ^
 255     " --sp-file <SP> <infile> [-o <outfile>] [--iso-file <iso>] [options]" ^
 256     "\n" ^ "Options are:"
 257
 258 (* forward reference trick *)
 259 let short_usage_func = ref (fun () -> ())
 260 let long_usage_func  = ref (fun () -> ())
 261
 262
 263 (* The short_options are user-oriented. The other options are for
 264  * the developers of coccinelle or advanced-users that know
 265  * quite well the underlying semantics of coccinelle.
 266  *)
 267
 268
 269 (* will be printed when use only ./spatch. For the rest you have to
 270  * use -longhelp to see them.
 271  *)
 272 let short_options = [
 273   "--sp-file",  Arg.Set_string cocci_file,
 274   " <file> the semantic patch file";
 275
 276   "-o", Arg.Set_string output_file,
 277   "   <file> the output file";
 278   "--in-place", Arg.Set inplace_modif,
 279   "   do the modification on the file directly";
 280   "--backup-suffix", Arg.String (function s -> backup_suffix := Some s),
 281   "   suffix to use when making a backup for inplace";
 282   "--out-place", Arg.Set outplace_modif,
 283   "   store modifications in a .cocci_res file";
 284   "--reverse", Arg.Set Flag_parsing_cocci.interpret_inverted,
 285   "  invert the semantic patch before applying it";
 286
 287   "-U", Arg.Int (fun n -> Flag_parsing_c.diff_lines := Some (i_to_s n)),
 288   "  set number of diff context lines";
 289   "--partial-match",        Arg.Set Flag_ctl.partial_match,
 290   "    report partial matches of the SP on the C file";
 291
 292   "--iso-file", Arg.Set_string Config.std_iso,
 293   " <file> (default=" ^ !Config.std_iso ^")";
 294   "--macro-file", Arg.Set_string macro_file,
 295   " <file>";
 296   "--macro-file-builtins", Arg.Set_string Config.std_h,
 297   " <file> (default=" ^ !Config.std_h ^ ")";
 298
 299   "--recursive-includes",
 300   Arg.Unit (function _ -> FC.include_options := FC.I_REALLY_ALL_INCLUDES),
 301   "  causes all available include files, both those included in the C file(s) and those included in header files, to be used";
 302   "--all-includes",
 303   Arg.Unit (function _ -> FC.include_options := FC.I_ALL_INCLUDES),
 304   "  causes all available include files included in the C file(s) to be used";
 305   "--no-includes",
 306   Arg.Unit (function _ -> FC.include_options := FC.I_NO_INCLUDES),
 307   "  causes not even local include files to be used";
 308   "--local-includes",
 309   Arg.Unit (function _ -> FC.include_options := FC.I_NORMAL_INCLUDES),
 310   "  causes local include files to be used";
 311   "--ignore-unknown-options", Arg.Set ignore_unknown_opt,
 312   "    For integration in a toolchain (must be set before the first unknown option)";
 313   "--include-headers", Arg.Set Flag.include_headers,
 314   "    process header files independently";
 315   "-I",   Arg.String (fun x -> FC.include_path:= x::!FC.include_path),
 316   "  <dir> containing the header files";
 317   "--include", Arg.String (fun x -> FC.extra_includes:=x::!FC.extra_includes),
 318   "  file to consider as being included";
 319
 320   "--preprocess", Arg.Set preprocess,
 321   " run the C preprocessor before applying the semantic match";
 322
 323   "-c", Arg.Set compat_mode, " gcc/cpp compatibility mode";
 324
 325   "--dir", Arg.Set dir,
 326   "    <dir> process all files in directory recursively";
 327
 328   "--use-glimpse", Arg.Unit (function _ -> Flag.scanner := Flag.Glimpse),
 329   "    works with -dir, use info generated by glimpseindex";
 330   "--use-google", Arg.String (function s -> Flag.scanner := Flag.Google s),
 331   "    find relevant files using google code search";
 332   "--use-idutils", Arg.Unit (function s -> Flag.scanner := Flag.IdUtils),
 333   "    find relevant files using id-utils";
 334   "--patch",
 335     Arg.String (function s -> Flag.patch := Some (Cocci.normalize_path s)),
 336   ("    <dir> path name with respect to which a patch should be created\n"^
 337    "    \"\" for a file in the current directory");
 338   "--kbuild-info", Arg.Set_string kbuild_info,
 339   "    <file> improve -dir by grouping related c files";
 340   "--pyoutput", Arg.Set_string Flag.pyoutput,
 341   "    Sets output routine: Standard values: <coccilib.output.Gtk|coccilib.output.Console>";
 342
 343
 344   "--version",   Arg.Unit (fun () ->
 345     let withpython = if Pycocci.python_support then "with" else "without" in
 346     let whichregexp =
 347       if !Regexp.pcre_support then "with PCRE support"
 348       else "with Str regexp support "
 349     in
 350     pr2 (spf "spatch version %s %s Python support and %s" Config.version withpython whichregexp);
 351     exit 0;
 352   ),
 353     "  guess what";
 354
 355   "--date",   Arg.Unit (fun () ->
 356     pr2 "version: $Date$";
 357     raise (Common.UnixExit 0)
 358     ),
 359   "   guess what";
 360
 361   "--shorthelp", Arg.Unit (fun () ->
 362     !short_usage_func();
 363     raise (Common.UnixExit 0)
 364   ),
 365   "    see short list of options";
 366   "--longhelp", Arg.Unit (fun () ->
 367     !long_usage_func();
 368     raise (Common.UnixExit 0)
 369     ),
 370   "    see all the available options in different categories";
 371   "-help", Arg.Unit (fun () ->
 372     !long_usage_func();
 373     raise (Common.UnixExit 0)
 374   ),
 375   " ";
 376   "--help", Arg.Unit (fun () ->
 377     !long_usage_func();
 378     raise (Common.UnixExit 0)
 379   ),
 380   " ";
 381 ]
 382
 383 (* the format is a list of triples:
 384  *  (title of section * (optional) explanation of sections * option list)
 385  *)
 386 let other_options = [
 387   "aliases and obsolete options",
 388   "",
 389   [
 390     "--sp", Arg.Unit (function _ -> failwith "impossible"),
 391     " command line semantic patch";
 392     "--iso", Arg.Set_string Config.std_iso,   " short option of --iso-file";
 393
 394     "--cocci-file", Arg.Set_string cocci_file,
 395     "   <file> the semantic patch file";
 396 (*     "-c", Arg.Set_string cocci_file,     " short option of -sp_file"; *)
 397   ];
 398
 399   "most useful show options",
 400   "",
 401   [
 402     "--show-diff"           , Arg.Set FC.show_diff, " ";
 403     "--no-show-diff"           , Arg.Clear FC.show_diff, " ";
 404     "--force-diff"           , Arg.Set FC.force_diff,
 405        "show diff even if only spacing changes";
 406     "--show-flow"              , Arg.Set FC.show_flow,        " ";
 407     (* works in conjunction with -show_ctl_text *)
 408     "--ctl-inline-let",
 409     Arg.Unit
 410     (function _ -> FC.show_ctl_text := true; FC.inline_let_ctl := true), " ";
 411     "--ctl-show-mcodekind",
 412     Arg.Unit
 413     (function _ -> FC.show_ctl_text := true; FC.show_mcodekind_in_ctl := true),
 414     " ";
 415     "--show-bindings",        Arg.Set FC.show_binding_in_out, " ";
 416     "--show-transinfo",    Arg.Set Flag.show_transinfo, " ";
 417     "--show-misc",         Arg.Set Flag.show_misc, " ";
 418     "--show-trying",          Arg.Set Flag.show_trying,
 419     " show the name of each function being processed";
 420     "--show-dependencies",
 421     Arg.Unit (function _ -> FC.show_dependencies := true;
 422       FC.show_binding_in_out := true),
 423     " show the dependencies related to each rule";
 424   ];
 425
 426   "verbose subsystems options",
 427   "",
 428   [
 429     "--verbose-ctl-engine",
 430     Arg.Unit (function _ ->
 431       Flag_ctl.verbose_ctl_engine := true; FC.show_ctl_text := true) , " ";
 432     "--verbose-match",        Arg.Set Flag_ctl.verbose_match, " ";
 433     "--verbose-engine",       Arg.Set Flag_matcher.debug_engine,    " ";
 434     "--graphical-trace",      Arg.Set Flag_ctl.graphical_trace, "  generate a pdf file representing the matching process";
 435     "--gt-without-label",
 436      Arg.Unit (function _ ->
 437        Flag_ctl.graphical_trace := true; Flag_ctl.gt_without_label := true),
 438        "  remove graph label (requires option -graphical-trace)";
 439
 440     "--parse-error-msg", Arg.Set Flag_parsing_c.show_parsing_error, " ";
 441     "--verbose-parsing",
 442        Arg.Unit (fun _ -> Flag_parsing_c.verbose_parsing := true;
 443          Flag_parsing_c.show_parsing_error := true), " ";
 444     "--type-error-msg",  Arg.Set Flag_parsing_c.verbose_type, " ";
 445     (* could also use Flag_parsing_c.options_verbose *)
 446   ];
 447
 448   "other show options",
 449   "",
 450   [
 451     "--show-c"                 , Arg.Set FC.show_c,           " ";
 452     "--show-cocci"             , Arg.Set FC.show_cocci,       " ";
 453     "--show-before-fixed-flow" , Arg.Set FC.show_before_fixed_flow,  " ";
 454     "--show-ctl-tex"           , Arg.Set FC.show_ctl_tex,     " ";
 455     "--show-ctl-text"          , Arg.Set FC.show_ctl_text,     " ";
 456     "--show-SP"             ,    Arg.Set Flag_parsing_cocci.show_SP,  " ";
 457   ];
 458
 459
 460   "debug C parsing/unparsing",
 461   "",
 462   [
 463     "--debug-cpp",          Arg.Set  Flag_parsing_c.debug_cpp, " ";
 464     "--debug-lexer",        Arg.Set  Flag_parsing_c.debug_lexer , " ";
 465     "--debug-etdt",         Arg.Set  Flag_parsing_c.debug_etdt , "  ";
 466     "--debug-typedef",      Arg.Set  Flag_parsing_c.debug_typedef, "  ";
 467
 468     "--filter-msg",         Arg.Set  Flag_parsing_c.filter_msg ,
 469     "  filter some cpp message when the macro is a \"known\" cpp construct";
 470     "--filter-define-error",     Arg.Set Flag_parsing_c.filter_define_error,"  ";
 471     "--filter-msg-define-error", Arg.Set Flag_parsing_c.filter_msg_define_error,
 472     "  filter the error msg";
 473     "--filter-passed-level",     Arg.Set_int Flag_parsing_c.filter_passed_level,"  ";
 474 (*  debug cfg doesn't seem to have any effect, so drop it as an option *)
 475 (*  "--debug_cfg",          Arg.Set Flag_parsing_c.debug_cfg , "  "; *)
 476     "--debug-unparsing",         Arg.Set  Flag_parsing_c.debug_unparsing, "  ";
 477
 478   ];
 479   (* could use Flag_parsing_c.options_debug_with_title instead *)
 480
 481
 482   "shortcut for enabling/disabling a set of debugging options at once",
 483   "",
 484   [
 485     (* todo: other profile ? *)
 486     "--quiet",   Arg.Unit (fun () -> run_profile quiet_profile), " ";
 487     "--very-quiet",   Arg.Unit (fun () -> run_profile very_quiet_profile), " ";
 488     "--debug",   Arg.Unit (fun () -> run_profile debug_profile), " ";
 489     "--pad",     Arg.Unit (fun () -> run_profile pad_profile),   " ";
 490
 491   ];
 492
 493   "bench options",
 494   "",
 495   [
 496     "--profile", Arg.Unit (function () -> Common.profile := Common.PALL) ,
 497     "   gather timing information about the main coccinelle functions";
 498     "--bench", Arg.Int (function x -> Flag_ctl.bench := x),
 499     "   <level> for profiling the CTL engine";
 500     "--timeout", Arg.Int (fun x -> FC.timeout := Some x),
 501     "   <sec> timeout in seconds";
 502     "--steps", Arg.Int (fun x -> Flag_ctl.steps := Some x),
 503     "   max number of model checking steps per code unit";
 504     "--iso-limit", Arg.Int (fun x -> Flag_parsing_cocci.iso_limit := Some x),
 505     "   max depth of iso application";
 506     "--no-iso-limit", Arg.Unit (fun _ -> Flag_parsing_cocci.iso_limit := None),
 507     "   disable limit on max depth of iso application";
 508     "--track-iso", Arg.Set Flag.track_iso_usage,
 509     "   gather information about isomorphism usage";
 510     "--disable-iso",
 511     Arg.String
 512     (fun s -> Flag_parsing_cocci.disabled_isos :=
 513       s :: !Flag_parsing_cocci.disabled_isos),
 514     "   disable a specific isomorphism";
 515     "--profile-iso",
 516     Arg.Unit
 517     (function () ->
 518       Common.profile :=
 519         (*post_engine not included, because it doesn't use isos*)
 520         PSOME ["parse cocci";"mysat";"asttoctl2";"pre_engine";"full_engine"]),
 521     "   gather information about the cost of isomorphism usage"
 522   ];
 523
 524
 525
 526   "change of algorithm options",
 527   "",
 528   [
 529 (*    "--popl", Arg.Set FC.popl,
 530     "    simplified SmPL, for the popl paper";
 531
 532     "--popl_mark_all",
 533     Arg.Unit
 534     (function _ -> FC.popl := true; Flag_popl.mark_all := true),
 535     "    simplified SmPL, for the popl paper";
 536
 537     "--popl_keep_all_wits",
 538     Arg.Unit
 539     (function _ -> FC.popl := true; Flag_popl.keep_all_wits := true),
 540     "    simplified SmPL, for the popl paper";
 541
 542     "--hrule", Arg.String
 543     (function s ->
 544       Flag.make_hrule := Some s; FC.include_options := FC.I_NO_INCLUDES),
 545     "    semantic patch generation";
 546 *)
 547     "--keep-comments", Arg.Set Flag_parsing_c.keep_comments,
 548     "   keep comments around removed code";
 549
 550     "--loop",              Arg.Set Flag_ctl.loop_in_src_code,    " ";
 551     "--no-loops",          Arg.Set Flag_parsing_c.no_loops,
 552     "   drop all back edges derived from looping constructs - unsafe";
 553     "--no-gotos",          Arg.Set Flag_parsing_c.no_gotos,
 554     "   drop all jumps derived from gotos - unsafe";
 555     "--no-saved-typedefs", Arg.Clear Flag_cocci.use_saved_typedefs,
 556     "   drop all inferred typedefs from one parse of some code to the next";
 557
 558     "--ocaml-regexps", Arg.Clear Regexp.pcre_support,
 559     "   use OCaml Str regular expressions for constraints";
 560
 561     "--l1",                Arg.Clear Flag_parsing_c.label_strategy_2, " ";
 562     "--ifdef-to-if",       Arg.Set FC.ifdef_to_if,
 563     "   convert ifdef to if (experimental)";
 564     "--no-ifdef-to-if",              Arg.Clear FC.ifdef_to_if,
 565     "   convert ifdef to if (experimental)";
 566
 567     "--disable-multi-pass", Arg.Set Flag_parsing_c.disable_multi_pass, " ";
 568
 569     "--noif0-passing",      Arg.Clear Flag_parsing_c.if0_passing, " ";
 570     "--defined", Arg.String (Flag_parsing_c.add Flag_parsing_c.defined), " ";
 571     "--undefined", Arg.String
 572         (Flag_parsing_c.add Flag_parsing_c.undefined), " ";
 573     "--noadd-typedef-root", Arg.Clear Flag_parsing_c.add_typedef_root, " ";
 574     (* could use Flag_parsing_c.options_algo instead *)
 575
 576
 577     "--disallow-nested-exps", Arg.Set Flag_matcher.disallow_nested_exps,
 578        " disallow an expresion pattern from matching a term and its subterm";
 579     "--disable-worth-trying-opt", Arg.Clear FC.worth_trying_opt,
 580     "  ";
 581     "--only-return-is-error-exit",
 582     Arg.Set Flag_matcher.only_return_is_error_exit,
 583     "if this flag is not set, then break and continue are also error exits";
 584     (* the following is a hack to make it easier to add code in sgrep-like
 585        code, essentially to compensate for the fact that we don't have
 586        any way of printing things out *)
 587     "--allow-inconsistent-paths",
 588     Arg.Set Flag_matcher.allow_inconsistent_paths,
 589     "   if this flag is set don't check for inconsistent paths; dangerous";
 590     "--no-safe-expressions",
 591     Arg.Set Flag_matcher.no_safe_expressions,
 592     "  make an expression disjunction not prioritise the topmost disjunct";
 593     "--int-bits", Arg.Int Flag_parsing_c.set_int_bits,
 594     "  the number of bits in an unsigned int";
 595     "--long-bits", Arg.Int Flag_parsing_c.set_long_bits,
 596     "  the number of bits in an unsigned long";
 597     "--linux-spacing", Arg.Unit Flag_parsing_c.set_linux_spacing,
 598     "  spacing of + code follows the conventions of Linux";
 599     "--smpl-spacing", Arg.Unit Flag_parsing_c.set_smpl_spacing,
 600     "  spacing of + code follows the semantic patch";
 601     "-D", Arg.String Flag.set_defined_virtual_rules,
 602     "  indicate that a virtual rule should be considered to be matched";
 603     "--c++", Arg.Set Flag.c_plus_plus,
 604     "  make a small attempt to parse C++ files"
 605   ];
 606
 607   "misc options",
 608   "",
 609   [
 610     "--debugger",           Arg.Set Common.debugger,
 611     "   option to set if launch spatch in ocamldebug";
 612     "--disable-once",       Arg.Set Common.disable_pr2_once,
 613     "   to print more messages";
 614     "--show-trace-profile", Arg.Set Common.show_trace_profile,
 615     "   show trace";
 616     "--save-tmp-files",     Arg.Set Common.save_tmp_files,   " ";
 617     "--external-analysis-file", Arg.String
 618       (Externalanalysis.load_external_results),
 619     "  import results from an external analysis";
 620   ];
 621
 622   "concurrency",
 623   "",
 624   [
 625     "--index",       Arg.Int (function x -> distrib_index := Some x) ,
 626     "   the processor to use for this run of spatch";
 627     "--max",         Arg.Int (function x -> distrib_max := Some x) ,
 628     "   the number of processors available";
 629     "--mod-distrib", Arg.Set mod_distrib,
 630     "   use mod to distribute files among the processors";
 631   ];
 632
 633   "pad options",
 634   "",
 635   [
 636     "--use-cache", Arg.Set Flag_parsing_c.use_cache,
 637     "   use .ast_raw pre-parsed cached C file";
 638     "--cache-prefix",
 639     Arg.String (function s ->
 640       Flag_parsing_c.cache_prefix := Some s;
 641       Flag_parsing_c.use_cache := true),
 642     "   directory of cached ASTs, sets -use-cache";
 643     (* could use Flag_parsing_c.options_pad instead *)
 644     "--cache-limit",
 645       Arg.Int (function n ->
 646         Flag_parsing_c.cache_limit := Some n),
 647     "   maximum number of cached ASTs, sets -use-cache";
 648   ];
 649
 650
 651
 652   "test mode and test options (works with tests/ or .ok files)",
 653   "The test options don't work with the --sp-file and so on.",
 654   [
 655     "--test",    Arg.Set test_mode,
 656     "   <file> launch spatch on tests/file.[c,cocci]";
 657     "--testall", Arg.Set test_all,
 658     "   launch spatch on all files in tests/ having a .res";
 659     "--test-okfailed", Arg.Set test_okfailed,
 660     "    generates .{ok,failed,spatch_ok} files using .res files";
 661     "--test-regression-okfailed", Arg.Set test_regression_okfailed,
 662     "    process the .{ok,failed,spatch_ok} files in current dir";
 663
 664     "--compare-with-expected", Arg.Set compare_with_expected,
 665     "   use also file.res";
 666     "--expected-score-file", Arg.Set_string expected_score_file,
 667     "   which score file to compare with in -testall";
 668     "--no-update-score-file", Arg.Clear allow_update_score_file,
 669     "   do not update the score file when -testall succeeds";
 670     "--relax-include-path", Arg.Set FC.relax_include_path,
 671     " ";
 672   ];
 673
 674   "action mode",
 675   ("The action options don't work with the --sp-file and so on." ^ "\n" ^
 676    "It's for the other (internal) uses of the spatch program."
 677   ),
 678
 679     (* -token_c, -parse_c, etc  *)
 680   ((Common.options_of_actions action (Test_parsing_c.actions())) ++
 681     [
 682     (let s = "--parse-cocci"  in s, Arg.Unit (fun () -> action := s),
 683     "   <file>");
 684     (let s = "--compare-c"  in s, Arg.Unit (fun () -> action := s),
 685     "   <file1> <file2>");
 686     ]);
 687 ]
 688
 689
 690 let all_options =
 691   short_options ++ List.concat (List.map Common.thd3 other_options)
 692
 693 (* I don't want the -help and --help that are appended by Arg.align *)
 694 let arg_align2 xs =
 695   Arg.align xs +> List.rev +> Common.drop 2 +> List.rev
 696
 697 (*
 698   Ignore unknown option
 699
 700   This simplifies the integration of Coccinelle in toolchain.  For
 701   instance, spatch can then be used as a checker in the Linux build
 702   system.
 703
 704 *)
 705 let check_include_path () =
 706   let opt = Array.get Sys.argv !Arg.current in
 707   let is_include_re = Str.regexp "-I\\(.*\\)" in
 708   if Str.string_match is_include_re opt 0 then
 709     let path = Str.matched_group 1 opt in
 710         FC.include_path:= path::!FC.include_path
 711   else ()
 712
 713 let rec arg_parse_no_fail l f msg =
 714   try
 715     check_include_path ();
 716     Arg.parse_argv Sys.argv l f msg;
 717   with
 718     | Arg.Bad emsg ->
 719         arg_parse_no_fail l f msg
 720     | Arg.Help msg -> (* printf "%s" msg; exit 0; *)
 721         raise (Impossible 165)  (* -help is specified in speclist *)
 722
 723 (* copy paste of Arg.parse. Don't want the default -help msg *)
 724 let arg_parse2 l f msg argv =
 725   (try
 726     Arg.parse_argv argv l f msg;
 727   with
 728   | Arg.Bad emsg -> (* eprintf "%s" msg; exit 2; *)
 729       if not !ignore_unknown_opt then
 730         begin
 731           let xs = Common.lines emsg in
 732             (* take only head, it's where the error msg is *)
 733             pr2 (List.hd xs);
 734             !short_usage_func();
 735             raise (Common.UnixExit (2))
 736         end
 737       else
 738         arg_parse_no_fail l f msg;
 739   | Arg.Help msg -> (* printf "%s" msg; exit 0; *)
 740       raise (Impossible 166)  (* -help is specified in speclist *)
 741   )
 742
 743
 744 let short_usage () =
 745  begin
 746   Common.short_usage usage_msg short_options;
 747   pr2 "";
 748   pr2 "Example of use:";
 749   pr2 "  ./spatch --sp-file foo.cocci foo.c -o /tmp/newfoo.c";
 750   pr2 "";
 751  end
 752
 753
 754 let long_usage () =
 755   Common.long_usage usage_msg short_options other_options
 756
 757 let _ = short_usage_func := short_usage
 758 let _ = long_usage_func := long_usage
 759
 760 (*****************************************************************************)
 761 (* Helpers *)
 762 (*****************************************************************************)
 763
 764 (* for fresh identifier information *)
 765 let adjust_stdin cfiles k =
 766   match cfiles with
 767     [] -> failwith "not possible"
 768   | cfile::_ ->
 769       let newin =
 770         try
 771           let (dir, base, ext) = Common.dbe_of_filename cfile in
 772           let varfile = Common.filename_of_dbe (dir, base, "var") in
 773           if ext =$= "c" && Common.lfile_exists varfile
 774           then Some varfile
 775           else None
 776         with Invalid_argument("Filename.chop_extension") -> None in
 777       Common.redirect_stdin_opt newin k
 778
 779 let glimpse_filter (coccifile, isofile) dir =
 780   let (_metavars,astcocci,_free_var_lists,_negated_positions,
 781        _used_after_lists,_positions_lists,(_,query,_)) =
 782     Cocci.sp_of_file coccifile (Some isofile) in
 783   match query with
 784     None -> pr2 "no inferred glimpse keywords"; None
 785   | Some queries ->
 786       let suffixes = if !Flag.include_headers then ["c";"h"] else ["c"] in
 787       let rec loop = function
 788           [] -> None (* error, eg due to pattern too big *)
 789         | query::queries ->
 790             Printf.fprintf stderr "%s\n" ("glimpse request = " ^ query);
 791             let command = spf "glimpse -y -H %s -N -W -w '%s'" dir query in
 792             let (glimpse_res,stat) = Common.cmd_to_list_and_status command in
 793             match stat with
 794               Unix.WEXITED(0) | Unix.WEXITED(1) ->
 795       Printf.fprintf stderr "got files\n"; flush stderr;
 796                 Some
 797                   (glimpse_res +>
 798                    List.filter
 799                      (fun file -> List.mem (Common.filesuffix file) suffixes))
 800             |   _ -> loop queries (* error, eg due to pattern too big *) in
 801       loop queries
 802
 803 let idutils_filter (coccifile, isofile) dir =
 804   let (_metavars,astcocci,_free_var_lists,_negated_positions,
 805        _used_after_lists,_positions_lists,(_,_,query)) =
 806     Cocci.sp_of_file coccifile (Some isofile) in
 807   match query with
 808     None -> pr2 "no inferred idutils keywords"; None
 809   | Some query ->
 810       let suffixes = if !Flag.include_headers then ["c";"h"] else ["c"] in
 811       let files = Id_utils.interpret dir query in
 812       Printf.fprintf stderr "got files\n"; flush stderr;
 813       Some
 814         (files +>
 815          List.filter (fun file -> List.mem (Common.filesuffix file) suffixes))
 816
 817 (*****************************************************************************)
 818 (* Main action *)
 819 (*****************************************************************************)
 820
 821 let rec main_action xs =
 822   let (cocci_files,xs) =
 823     List.partition (function nm -> Filename.check_suffix nm ".cocci") xs in
 824   (match (!cocci_file,cocci_files) with
 825     "",[fl] -> cocci_file := fl
 826   | _,[] -> ()
 827   | _ -> failwith "only one .cocci file allowed");
 828   Iteration.base_file_list := xs;
 829   let rec toploop = function
 830       [] -> failwith "no C files provided"
 831     | x::xs ->
 832       (* a more general solution would be to use
 833        * Common.files_of_dir_or_files (x::xs)
 834        * as some elements in xs may also be directories, or individual
 835        * files.
 836        *)
 837           dir := (Common.is_directory x);
 838
 839           if !cocci_file =$= ""
 840           then failwith "I need a cocci file,  use --sp-file <file>";
 841
 842           if !dir && !Flag.patch =*= None
 843           then
 844             (match xs with
 845             | [] -> Flag.patch := Some (Cocci.normalize_path x)
 846             | _ ->
 847                 pr2
 848                   ("warning: patch output can only be created when only one\n"^
 849                    "directory is specified or when the -patch flag is used")
 850                   );
 851           Flag.dir := x;
 852
 853           let infiles =
 854             Common.profile_code "Main.infiles computation" (fun () ->
 855               match !dir, !kbuild_info, !Flag.scanner, xs with
 856             (* glimpse *)
 857               | false, _, (Flag.Glimpse|Flag.IdUtils), _ -> [x::xs]
 858               | true, s, (Flag.Glimpse|Flag.IdUtils), _ when s <> "" ->
 859                   failwith
 860                     "--use-glimpse or --id-utils does not work with --kbuild"
 861               | true, "", Flag.Glimpse, [] ->
 862                   (*if not (null xs)
 863                   then failwith "--use-glimpse can accept only one dir"*)
 864
 865                   let files =
 866                     match glimpse_filter (!cocci_file, !Config.std_iso) x with
 867                       None -> Test_parsing_c.get_files x
 868                     | Some files -> files in
 869                   files +> List.map (fun x -> [x])
 870               | true, "", Flag.IdUtils, [] ->
 871                   (*if not (null xs)
 872                   then failwith "--id-utils can accept only one dir"*)
 873
 874                   let files =
 875                     match idutils_filter (!cocci_file, !Config.std_iso) x with
 876                       None -> Test_parsing_c.get_files x
 877                     | Some files -> files in
 878                   files +> List.map (fun x -> [x])
 879                   (* normal *)
 880               | false, _, _, _ -> [x::xs]
 881               | true, "", _, _ ->
 882                   Test_parsing_c.get_files (join " " (x::xs)) +> List.map (fun x -> [x])
 883
 884             (* kbuild *)
 885               | true, kbuild_info_file,_,_ ->
 886                   let dirs =
 887                     Common.cmd_to_list ("find "^(join " " (x::xs))^" -type d")
 888                   in
 889                   let info = Kbuild.parse_kbuild_info kbuild_info_file in
 890                   let groups = Kbuild.files_in_dirs dirs info in
 891
 892                   groups +> List.map (function Kbuild.Group xs -> xs)
 893                     )
 894           in
 895
 896           (* make cache unique in parallel case *)
 897           (match (!distrib_index,!Flag_parsing_c.cache_prefix) with
 898             (Some index,Some str) ->
 899               Flag_parsing_c.cache_prefix :=
 900                 Some (Printf.sprintf "%s/d%d" str index)
 901           | _ -> ());
 902
 903           let infiles =
 904             match (!distrib_index,!distrib_max) with
 905               (None,None) -> infiles
 906             | (Some index,Some max) ->
 907                 (if index >= max
 908                 then
 909                   failwith "index starts at 0, and so must be less than max");
 910                 if !mod_distrib
 911                 then
 912                   let rec loop ct = function
 913                       [] -> []
 914                     | x::xs ->
 915                         if (ct mod max) =|= index
 916                         then x::(loop (ct+1) xs)
 917                         else loop (ct+1) xs in
 918                   loop 0 infiles
 919                 else
 920                   begin
 921                     let all_files = List.length infiles in
 922                     let regions = (all_files + (max - 1)) / max in
 923                     let this_min = index * regions in
 924                     let this_max = (index+1) * regions in
 925                     let rec loop ct = function
 926                         [] -> []
 927                       | x::xs ->
 928                           if this_min <= ct && ct < this_max
 929                           then x::(loop (ct+1) xs)
 930                           else loop (ct+1) xs in
 931                     loop 0 infiles
 932                   end
 933             | _ -> failwith "inconsistent distribution information" in
 934
 935           let (cocci_infos,outfiles) =
 936             Common.profile_code "Main.outfiles computation" (fun () ->
 937               let cocci_infos =
 938                 Cocci.pre_engine (!cocci_file, !Config.std_iso) in
 939               let res =
 940                 infiles +> List.map (fun cfiles ->
 941                   pr2 ("HANDLING: " ^ (join " " cfiles));
 942                   (*pr2 (List.hd(Common.cmd_to_list "free -m | grep Mem"));*)
 943                   flush stderr;
 944
 945                   Common.timeout_function_opt !FC.timeout (fun () ->
 946                     Common.report_if_take_time 10 (join " " cfiles) (fun () ->
 947                       try
 948                         let optfile =
 949                           if !output_file <> "" && !compat_mode then
 950                             Some !output_file
 951                           else
 952                             None
 953                         in
 954                         adjust_stdin cfiles (fun () ->
 955                           Common.redirect_stdout_opt optfile (fun () ->
 956                           (* this is the main call *)
 957                             Cocci.full_engine cocci_infos cfiles
 958                         ))
 959                       with
 960                       | Common.UnixExit x -> raise (Common.UnixExit x)
 961                       | Pycocci.Pycocciexception ->
 962                           raise Pycocci.Pycocciexception
 963                       | e ->
 964                           if !dir
 965                           then begin
 966                             pr2 ("EXN:" ^ Printexc.to_string e);
 967                             [] (* *)
 968                           end
 969                           else raise e))) in
 970               (cocci_infos,res)) in
 971           let outfiles = List.concat outfiles in
 972           (match Iteration.get_pending_instance() with
 973             None ->
 974               (x,xs,cocci_infos,outfiles)
 975           | Some (files,virt_rules,virt_ids) ->
 976               if outfiles = [] or outfiles = [] or not !FC.show_diff
 977                   or !inplace_modif
 978               then
 979                 begin
 980                   (if !inplace_modif then generate_outfiles outfiles x xs);
 981                   Flag.defined_virtual_rules := virt_rules;
 982                   Flag.defined_virtual_env := virt_ids;
 983                   Common.erase_temp_files();
 984                   Common.clear_pr2_once();
 985                   distrib_index := None;
 986                   distrib_max := None;
 987                   toploop files
 988                 end
 989               else
 990                 begin
 991                   Common.pr2
 992                     "Out of place transformation not compatible with iteration. Aborting.\n consider using -no_show_diff or -in_place";
 993                   (x,xs,cocci_infos,outfiles)
 994                 end) in
 995       let (x,xs,cocci_infos,outfiles) = toploop xs in
 996
 997       Cocci.post_engine cocci_infos;
 998       Common.profile_code "Main.result analysis" (fun () ->
 999         Ctlcocci_integration.print_bench();
1000         generate_outfiles outfiles x xs;
1001         if !compare_with_expected
1002         then Testing.compare_with_expected outfiles)
1003
1004 and generate_outfiles outfiles x (* front file *) xs (* other files *) =
1005   let outfiles = Cocci.check_duplicate_modif outfiles in
1006   outfiles +> List.iter (fun (infile, outopt) ->
1007     outopt +> Common.do_option (fun outfile ->
1008       if !inplace_modif
1009       then begin
1010         (match !backup_suffix with
1011           Some backup_suffix ->
1012             Common.command2 ("cp "^infile^" "^infile^backup_suffix)
1013         | None -> ());
1014         Common.command2 ("cp "^outfile^" "^infile);
1015       end;
1016
1017       if !outplace_modif
1018       then Common.command2 ("cp "^outfile^" "^infile^".cocci_res")
1019
1020               (* potential source of security pb if the /tmp/ file is
1021                  * a symlink, so simpler to not produce any regular file
1022                  * (files created by Common.new_temp_file are still ok)
1023                  * anymore in /tmp.
1024               *)
1025               (*
1026                  if !output_file =$= ""
1027                  then begin
1028                  let tmpfile = "/tmp/"^Common.basename infile in
1029                  pr2 (spf "One file modified. Result is here: %s" tmpfile);
1030                  Common.command2 ("cp "^outfile^" "^tmpfile);
1031                  end
1032               *)
1033             ));
1034   if !output_file <> "" && not !compat_mode then
1035     (match outfiles with
1036     | [infile, Some outfile] when infile =$= x && null xs ->
1037         Common.command2 ("cp " ^outfile^ " " ^ !output_file)
1038     | [infile, None] when infile =$= x && null xs ->
1039         Common.command2 ("cp " ^infile^ " " ^ !output_file)
1040     | _ ->
1041         failwith
1042           ("-o can not be applied because there are multiple " ^
1043            "modified files"))
1044
1045 let fix_chars s =
1046   if (String.length s) > 2 && String.get s 0 = '-'
1047       && not (String.get s 1 = '-')
1048   then "-"^(String.concat "-" (Str.split (Str.regexp_string "_") s))
1049   else s
1050
1051 (*****************************************************************************)
1052 (* The coccinelle main entry point *)
1053 (*****************************************************************************)
1054 let main () =
1055   begin
1056     let arglist = Array.to_list Sys.argv in
1057     let arglist = Command_line.command_line arglist in
1058     let arglist = List.map fix_chars arglist in
1059
1060     let contains_cocci =
1061       (* rather a hack... don't want to think about all possible options *)
1062       List.exists
1063         (function x -> Filename.check_suffix x ".cocci")
1064         arglist &&
1065       not (List.mem "--parse-cocci" arglist) in
1066     if not (null (Common.inter_set arglist
1067                     ["--cocci-file";"--sp-file";"--sp";"--test";"--testall";
1068                       "--test-okfailed";"--test-regression-okfailed"]))
1069         or contains_cocci
1070     then run_profile quiet_profile;
1071
1072     let args = ref [] in
1073
1074     (* Gc.set {(Gc.get ()) with Gc.stack_limit = 1024 * 1024};*)
1075
1076     (* this call can set up many global flag variables via the cmd line *)
1077     arg_parse2 (Arg.align all_options) (fun x -> args := x::!args) usage_msg
1078       (Array.of_list arglist);
1079     args :=
1080       List.filter
1081         (function arg ->
1082           if Filename.check_suffix arg ".cocci"
1083           then
1084             begin
1085               (if !cocci_file = ""
1086               then cocci_file := arg
1087               else failwith "only one .cocci file allowed");
1088               false
1089             end
1090           else true)
1091         !args;
1092     (match (!Flag_parsing_c.cache_prefix,!distrib_index) with
1093       (Some cp,Some n) ->
1094         Flag_parsing_c.cache_prefix :=
1095           Some (Printf.sprintf "%s_%d" cp n)
1096     | _ -> ());
1097
1098     (* julia hack so that one can override directories specified on
1099        * the command line. *)
1100     (if !dir
1101     then
1102       let chosen_dir =
1103         if List.length !args > 1
1104         then
1105           begin
1106             let chosen = List.hd !args in
1107             Flag.dir := chosen;
1108             pr2 ("ignoring all but the last specified directory: "^chosen);
1109             args := [chosen];
1110             chosen
1111           end
1112         else List.hd !args in
1113       if !FC.include_path =*= []
1114       then FC.include_path := [Filename.concat chosen_dir "include"]);
1115
1116     args := List.rev !args;
1117
1118     if !cocci_file <> "" && (not (!cocci_file =~ ".*\\.\\(sgrep\\|spatch\\)$"))
1119     then cocci_file := Common.adjust_ext_if_needed !cocci_file ".cocci";
1120
1121     if !Config.std_iso <> ""
1122     then Config.std_iso := Common.adjust_ext_if_needed !Config.std_iso ".iso";
1123     if !Config.std_h <> ""
1124     then Config.std_h := Common.adjust_ext_if_needed !Config.std_h ".h";
1125
1126     if !Config.std_h <> ""
1127     then Parse_c.init_defs_builtins !Config.std_h;
1128
1129     if !macro_file <> ""
1130     then Parse_c.init_defs_macros !macro_file;
1131
1132
1133     (* must be done after Arg.parse, because Common.profile is set by it *)
1134     Common.profile_code "Main total" (fun () ->
1135
1136
1137     let all_actions = Test_parsing_c.actions() in
1138
1139     (match (!args) with
1140
1141     (* --------------------------------------------------------- *)
1142     (* The test framework. Works with tests/ or .ok and .failed  *)
1143     (* --------------------------------------------------------- *)
1144     | [x] when !test_mode    ->
1145         begin
1146           let prefix = "tests/" in
1147           let testfile = x ^ ".cocci" in
1148             if Sys.file_exists (prefix ^ testfile) then
1149               begin
1150                 (if !FC.include_path = []
1151                 then FC.include_path := [prefix^"include"]);
1152                 Testing.testone prefix x !compare_with_expected
1153               end
1154             else
1155               if Sys.file_exists testfile then
1156                 begin
1157                   (if !FC.include_path = []
1158                   then FC.include_path := ["include"]);
1159                   Testing.testone "" x !compare_with_expected
1160                 end
1161               else
1162                 Printf.fprintf stderr
1163                   "ERROR: File %s does not exist\n" testfile
1164         end
1165
1166     | []  when !test_all ->
1167         (if !FC.include_path = []
1168         then FC.include_path := ["tests/include"]);
1169         let score_file = if !expected_score_file <> ""
1170                          then !expected_score_file
1171                          else "tests/SCORE_expected.sexp" in
1172         Testing.testall score_file !allow_update_score_file
1173
1174     | [] when !test_regression_okfailed ->
1175         Testing.test_regression_okfailed ()
1176
1177     | ((x::xs) as cfiles) when !test_okfailed ->
1178         (* do its own timeout on FC.timeout internally *)
1179         FC.relax_include_path := true;
1180         adjust_stdin cfiles (fun () ->
1181           Testing.test_okfailed !cocci_file cfiles
1182         )
1183
1184     (* --------------------------------------------------------- *)
1185     (* Actions, useful to debug subpart of coccinelle *)
1186     (* --------------------------------------------------------- *)
1187
1188     | xs when List.mem !action (Common.action_list all_actions) ->
1189         Common.do_action !action xs all_actions
1190
1191     | [] when !action =$= "--parse-cocci" ->
1192         Testing.test_parse_cocci !cocci_file
1193
1194      (* I think this is used by some scripts in some Makefile for our
1195       * big-tests. So dont remove.
1196       *)
1197     | [file1;file2] when !action =$= "--compare-c" ->
1198        Test_parsing_c.test_compare_c file1 file2 (* result = unix code *)
1199
1200     (* could add the Test_parsing_c.test_actions such as -parse_c & co *)
1201
1202
1203     (* --------------------------------------------------------- *)
1204     (* This is the main entry *)
1205     (* --------------------------------------------------------- *)
1206     | x::xs -> main_action (x::xs)
1207
1208     (* --------------------------------------------------------- *)
1209     (* empty entry *)
1210     (* --------------------------------------------------------- *)
1211     | [] -> short_usage()
1212   ));
1213     if !Pycocci.initialised && (Pycocci.py_isinitialized ()) != 0 then begin
1214       ignore(Pycocci.pyrun_simplestring "cocci.finalise()");
1215       if !Flag.show_misc
1216       then Common.pr2 "Finalizing python\n";
1217       Pycocci.py_finalize ();
1218     end
1219   end
1220
1221
1222 let main_with_better_error_report () =
1223   if !Common.debugger then main ()
1224   else
1225     try
1226       main ()
1227     with
1228     | Unix.Unix_error (e, "stat", filename) ->
1229         Printf.fprintf stderr "ERROR: File %s does not exist: %s\n"
1230           filename (Unix.error_message e);
1231         raise (UnixExit (-1))
1232     | Parse_cocci.Bad_virt s ->
1233         Printf.fprintf stderr "virtual rule %s not supported\n" s;
1234         raise (UnixExit (-1))
1235
1236 (*****************************************************************************)
1237 let start =
1238   Common.main_boilerplate (fun () ->
1239     main_with_better_error_report ();
1240     Ctlcocci_integration.print_bench();
1241   )