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174d1640 C |
1 | module Ast = Ast_cocci |
2 | ||
3 | exception CompileFailure of string | |
4 | exception LinkFailure of string | |
5 | ||
aba5c457 | 6 | let ext = if Dynlink.is_native then ".cmxs" else ".cma" |
174d1640 C |
7 | let has_ocamlfind = ref false |
8 | ||
1eddfd50 C |
9 | let sysdir = |
10 | let sysdircmd = !Flag.ocamlfind ^ " printconf stdlib" in | |
11 | match Common.cmd_to_list sysdircmd with | |
12 | [sysdir] -> sysdir | |
13 | | _ -> raise (CompileFailure (sysdircmd ^" has failed")) | |
14 | ||
174d1640 | 15 | let check_cmd cmd = |
c491d8ee C |
16 | let (_,stat) = Common.cmd_to_list_and_status cmd in |
17 | match stat with | |
18 | Unix.WEXITED 0 -> true | |
174d1640 C |
19 | | _ -> false |
20 | ||
21 | let check_runtime () = | |
22 | let has_opt = check_cmd (!Flag.ocamlc ^".opt -version 2>&1 > /dev/null") in | |
23 | let has_c = check_cmd (!Flag.ocamlc ^" -version 2>&1 > /dev/null") in | |
24 | let has_find = check_cmd (!Flag.ocamlfind ^ " printconf 2>&1 > /dev/null") in | |
25 | has_ocamlfind := has_find; | |
26 | if has_opt then | |
27 | begin | |
28 | Flag.ocamlc := !Flag.ocamlc ^ ".opt"; | |
29 | Flag.ocamlopt := !Flag.ocamlopt ^ ".opt"; | |
30 | Flag.ocamldep := !Flag.ocamldep ^ ".opt"; | |
31 | Common.pr2 "Using native version of ocamlc/ocamlopt/ocamldep" | |
32 | end | |
33 | else | |
34 | if has_c then | |
35 | Common.pr2 "Using bytecode version of ocamlc/ocamlopt/ocamldep" | |
36 | else | |
37 | if Dynlink.is_native then | |
38 | failwith | |
39 | "No OCaml compiler found! Install either ocamlopt or ocamlopt.opt" | |
40 | else | |
41 | failwith | |
42 | "No OCaml compiler found! Install either ocamlc or ocamlc.opt" | |
43 | ||
44 | let init_ocamlcocci _ = | |
45 | "open Coccilib\n" | |
46 | ||
aba5c457 C |
47 | let print_match ctr nm kind = |
48 | let endlet = "| _ -> failwith \"bad value\" in\n" in | |
49 | let index = !ctr in | |
50 | ctr := !ctr + 1; | |
51 | Printf.sprintf | |
52 | "let %s = match List.nth args %d with Coccilib.%s x -> x %s" | |
53 | nm index kind endlet | |
54 | ||
55 | let string_rep_binding ctr = function | |
56 | (Some nm,Ast.MetaPosDecl _) -> print_match ctr nm "Pos" | |
57 | | (Some nm,Ast.MetaListlenDecl _) -> print_match ctr nm "Int" | |
58 | | (Some nm,_) (* strings for everything else *) -> | |
59 | print_match ctr nm "Str" | |
60 | | (None,_) -> "" | |
61 | ||
62 | let ast_rep_binding ctr = function | |
63 | (Some nm,Ast.MetaPosDecl _) -> | |
64 | failwith | |
65 | (Printf.sprintf "%s: No AST representation for position variables" nm) | |
66 | | (Some nm,Ast.MetaIdDecl _) -> print_match ctr nm "Str" | |
67 | | (Some nm,Ast.MetaFreshIdDecl _) -> print_match ctr nm "Str" | |
68 | | (Some nm,Ast.MetaTypeDecl _) -> print_match ctr nm "Type" | |
69 | | (Some nm,Ast.MetaInitDecl _) -> print_match ctr nm "Init" | |
70 | | (Some nm,Ast.MetaListlenDecl _) -> | |
71 | failwith | |
72 | (Printf.sprintf "%s: No AST representation for listlen variables" nm) | |
73 | | (Some nm,Ast.MetaParamDecl _) -> print_match ctr nm "Param" | |
74 | | (Some nm,Ast.MetaParamListDecl _) -> print_match ctr nm "ParamList" | |
75 | | (Some nm,Ast.MetaConstDecl _) -> print_match ctr nm "Expr" | |
76 | | (Some nm,Ast.MetaErrDecl _) -> failwith ("not supported: "^nm) | |
77 | | (Some nm,Ast.MetaExpDecl _) -> print_match ctr nm "Expr" | |
78 | | (Some nm,Ast.MetaIdExpDecl _) -> print_match ctr nm "Expr" | |
79 | | (Some nm,Ast.MetaLocalIdExpDecl _) -> print_match ctr nm "Expr" | |
80 | | (Some nm,Ast.MetaExpListDecl _) -> print_match ctr nm "ExprList" | |
413ffc02 C |
81 | | (Some nm,Ast.MetaDeclDecl _) -> print_match ctr nm "Decl" |
82 | | (Some nm,Ast.MetaFieldDecl _) -> print_match ctr nm "Field" | |
aba5c457 C |
83 | | (Some nm,Ast.MetaStmDecl _) -> print_match ctr nm "Stmt" |
84 | | (Some nm,Ast.MetaStmListDecl _) -> failwith ("not supported: "^nm) | |
85 | | (Some nm,Ast.MetaFuncDecl _) -> print_match ctr nm "Str" | |
86 | | (Some nm,Ast.MetaLocalFuncDecl _) -> print_match ctr nm "Str" | |
87 | | (Some nm,Ast.MetaDeclarerDecl _) -> print_match ctr nm "Str" | |
88 | | (Some nm,Ast.MetaIteratorDecl _) -> print_match ctr nm "Str" | |
89 | | (None,_) -> "" | |
90 | ||
413ffc02 C |
91 | let manage_script_vars script_vars = |
92 | let rec loop n = function | |
93 | [] -> "" | |
94 | | (_,x)::xs -> | |
95 | (Printf.sprintf "let %s = List.nth script_args %d in\n" x n) ^ | |
96 | (loop (n+1) xs) in | |
97 | loop 0 script_vars | |
98 | ||
3a314143 C |
99 | (* ---------------------------------------------------------------------- *) |
100 | (* Iteration management *) | |
101 | ||
102 | let print_iteration_code o = | |
103 | let translator l = | |
104 | String.concat "\n | " | |
105 | (List.map | |
106 | (function x -> Printf.sprintf "%s -> \"%s\"" | |
107 | (String.capitalize x) x) | |
108 | l) in | |
109 | let add_virt_rules_method = | |
110 | match !Iteration.parsed_virtual_rules with | |
111 | [] -> "" | |
112 | | l -> | |
113 | Printf.sprintf " | |
114 | method add_virtual_rule r = | |
115 | let r = match r with %s in | |
116 | virtual_rules <- Common.union_set [r] virtual_rules\n" | |
117 | (translator l) in | |
118 | let add_virt_ids_method = | |
119 | match !Iteration.parsed_virtual_identifiers with | |
120 | [] -> "" | |
121 | | l -> | |
122 | Printf.sprintf " | |
123 | method add_virtual_identifier i v = | |
124 | let i = match i with %s in | |
125 | try | |
126 | let v1 = List.assoc i virtual_identifiers in | |
127 | if not (v = v1) | |
128 | then failwith (\"multiple values specified for \"^i) | |
129 | with Not_found -> | |
130 | virtual_identifiers <- (i,v) :: virtual_identifiers" | |
131 | (translator l) in | |
132 | Printf.fprintf o " | |
133 | class iteration () = | |
134 | object | |
135 | val mutable files = None | |
136 | val mutable files_changed = false | |
137 | val mutable virtual_rules = ([] : string list) | |
138 | val mutable virtual_identifiers = ([] : (string * string) list) | |
139 | method set_files f = files <- Some f | |
140 | %s%s | |
141 | method register () = | |
142 | Iteration.add_pending_instance (files,virtual_rules,virtual_identifiers) | |
143 | end\n\n" add_virt_rules_method add_virt_ids_method | |
144 | ||
145 | (* ---------------------------------------------------------------------- *) | |
146 | ||
413ffc02 | 147 | let prepare_rule (name, metavars, script_vars, code) = |
174d1640 C |
148 | let fname = String.concat "_" (Str.split (Str.regexp " ") name) in |
149 | (* function header *) | |
150 | let function_header body = | |
413ffc02 | 151 | Printf.sprintf "let %s args script_args =\n %s" fname body in |
174d1640 C |
152 | (* parameter list *) |
153 | let build_parameter_list body = | |
154 | let ctr = ref 0 in | |
aba5c457 C |
155 | let lets = |
156 | String.concat "" | |
157 | (List.rev | |
158 | (List.fold_left | |
159 | (function prev -> | |
160 | function ((str_nm,ast_nm),_,mv) -> | |
161 | (* order important; ctr is incremented *) | |
162 | let string_rep = string_rep_binding ctr (str_nm,mv) in | |
163 | let ast_rep = ast_rep_binding ctr (ast_nm,mv) in | |
164 | ast_rep :: string_rep :: prev) | |
165 | [] metavars)) in | |
413ffc02 | 166 | lets ^ (manage_script_vars script_vars) ^ body in |
174d1640 C |
167 | (* add to hash table *) |
168 | let hash_add body = | |
169 | Printf.sprintf | |
170 | "%s\nlet _ = Hashtbl.add Coccilib.fcts \"%s\" %s\n" body name fname in | |
171 | hash_add (function_header (build_parameter_list code)) | |
172 | ||
173 | let prepare coccifile code = | |
174 | let init_rules = | |
175 | List.fold_left | |
176 | (function prev -> | |
177 | function | |
178 | Ast_cocci.InitialScriptRule (name,"ocaml",deps,code) -> | |
179 | code :: prev | |
180 | | _ -> prev) | |
181 | [] code in | |
182 | let init_rules = List.rev init_rules in | |
183 | let other_rules = | |
184 | List.fold_left | |
185 | (function prev -> | |
186 | function | |
413ffc02 C |
187 | Ast_cocci.ScriptRule (name,"ocaml",deps,mv,script_vars,code) -> |
188 | (name,mv,script_vars,code) :: prev | |
174d1640 C |
189 | | Ast_cocci.InitialScriptRule (name,"ocaml",deps,code) -> prev |
190 | | Ast_cocci.FinalScriptRule (name,"ocaml",deps,code) -> | |
413ffc02 | 191 | (name,[],[],code) :: prev |
174d1640 C |
192 | | _ -> prev) |
193 | [] code in | |
194 | let other_rules = List.rev other_rules in | |
195 | if init_rules = [] && other_rules = [] | |
196 | then None | |
197 | else | |
3a314143 C |
198 | begin |
199 | let basefile = Filename.basename (Filename.chop_extension coccifile) in | |
200 | let basefile = | |
201 | String.concat "_" (Str.split (Str.regexp "-") basefile) in | |
202 | let (file,o) = Filename.open_temp_file basefile ".ml" in | |
174d1640 | 203 | (* Global initialization *) |
3a314143 C |
204 | Printf.fprintf o "%s\n" (init_ocamlcocci()); |
205 | (* virtual rules and identifiers *) | |
206 | (if !Iteration.parsed_virtual_rules != [] | |
207 | then | |
208 | Printf.fprintf o "type __virtual_rules__ = %s\n\n" | |
209 | (String.concat " | " | |
210 | (List.map String.capitalize !Iteration.parsed_virtual_rules))); | |
211 | (if !Iteration.parsed_virtual_identifiers != [] | |
212 | then | |
213 | Printf.fprintf o "type __virtual_identifiers__ = %s\n\n" | |
214 | (String.concat " | " | |
215 | (List.map | |
216 | (function x -> Printf.sprintf "%s" x) | |
217 | (List.map String.capitalize | |
218 | !Iteration.parsed_virtual_identifiers)))); | |
219 | print_iteration_code o; | |
174d1640 C |
220 | (* Semantic patch specific initialization *) |
221 | Printf.fprintf o "%s" (String.concat "\n\n" init_rules); | |
222 | (* Semantic patch rules and finalizer *) | |
223 | let rule_code = List.map prepare_rule other_rules in | |
3a314143 C |
224 | Printf.fprintf o "%s" (String.concat "\n\n" rule_code); |
225 | close_out o; | |
226 | check_runtime (); | |
227 | Some file | |
228 | end | |
174d1640 | 229 | |
aba5c457 | 230 | let filter_dep (accld, accinc) dep = |
174d1640 C |
231 | match dep with |
232 | (* Built-in and OCaml defaults are filtered out *) | |
233 | "Arg" | "Arith_status" | "Array" | "ArrayLabels" | "Big_int" | "Bigarray" | |
aba5c457 C |
234 | | "Buffer" | "Callback" | "CamlinternalLazy" | "CamlinternalMod" |
235 | | "CamlinternalOO" | |
236 | | "Char" | "Complex" | "Condition" | "Digest" | "Dynlink" | "Event" | |
237 | | "Filename" | |
238 | | "Format" | "Gc" | "Genlex" | "GraphicsX11" | "Hashtbl" | "Int32" | |
239 | | "Int64" | |
240 | | "Lazy" | "Lexing" | "List" | "ListLabels" | "Map" | "Marshal" | |
241 | | "MoreLabels" | "Mutex" | |
242 | | "Nativeint" | "Num" | "Obj" | "Oo" | "Parsing" | "Pervasives" | |
243 | | "Printexc" | "Printf" | |
244 | | "Queue" | "Random" | "Scanf" | "Set" | "Sort" | "Stack" | "StdLabels" | |
245 | | "Str" | "Stream" | |
246 | | "String" | "StringLabels" | "Sys" | "ThreadUnix" | "Unix" | "UnixLabels" | |
174d1640 C |
247 | | "Weak" |
248 | ||
249 | (* Coccilib is filtered out too *) | |
3a314143 C |
250 | | "Coccilib" | "Common" | "Ast_c" | "Visitor_c" | "Lib_parsing_c" |
251 | | "Iteration" -> | |
aba5c457 C |
252 | (accld, accinc) |
253 | ||
254 | | "Dbm" -> ("dbm"::accld, accinc) | |
255 | | "Graphics" -> ("graphics"::accld, accinc) | |
256 | | "Thread" -> ("thread"::accld, accinc) | |
257 | | "Tk" -> ("tk"::accld, accinc) | |
174d1640 C |
258 | |
259 | | _ -> | |
260 | let l = Char.lowercase (String.get dep 0)in | |
261 | String.set dep 0 l; | |
aba5c457 C |
262 | (accld, dep::accinc) |
263 | ||
264 | let get_dir p = | |
265 | let inclcmd = !Flag.ocamlfind ^" query "^p in | |
266 | let dir = List.hd (Common.cmd_to_list inclcmd) in | |
267 | (dir, p) | |
174d1640 C |
268 | |
269 | let parse_dep mlfile depout = | |
270 | let re_colon = Str.regexp_string ":" in | |
271 | match Str.split re_colon depout with | |
aba5c457 C |
272 | _::[dep] -> |
273 | let deplist = Str.split (Str.regexp_string " ") dep in | |
274 | let (libs, orderdep) = List.fold_left filter_dep ([],[]) deplist in | |
275 | if libs <> [] || orderdep <> [] then | |
276 | if !has_ocamlfind | |
277 | then | |
278 | let packages = List.rev orderdep in | |
279 | let inclflags = List.map get_dir packages in | |
280 | let intlib = List.map get_dir libs in | |
281 | let alllibs = List.rev_append intlib inclflags in | |
282 | let plist = | |
283 | List.fold_left (fun acc (_,p) -> acc ^" "^p) "" alllibs in | |
284 | let flags = | |
285 | String.concat " " (List.map (fun (d,_) -> "-I "^d) inclflags) in | |
286 | if flags <> "" || libs <> [] | |
287 | then | |
288 | begin | |
289 | Common.pr2 | |
290 | ("Extra OCaml packages used in the semantic patch:"^ plist); | |
291 | (alllibs (* , inclflags *), flags) | |
292 | end | |
174d1640 | 293 | else |
aba5c457 C |
294 | raise |
295 | (CompileFailure | |
296 | ("ocamlfind did not find "^ | |
297 | (if (List.length libs + List.length orderdep) = 1 | |
298 | then "this package:" | |
299 | else "one of these packages:")^ plist)) | |
300 | else | |
301 | raise | |
302 | (CompileFailure ("ocamlfind not found but "^mlfile^" uses "^dep)) | |
303 | else | |
304 | ([] (* , [] *), "") | |
305 | | _ -> | |
306 | raise | |
307 | (CompileFailure ("Wrong dependencies for "^mlfile^" (Got "^depout^")")) | |
413ffc02 | 308 | |
174d1640 C |
309 | let dep_flag mlfile = |
310 | let depcmd = !Flag.ocamldep ^" -modules "^mlfile in | |
aba5c457 C |
311 | match Common.cmd_to_list depcmd with |
312 | [dep] -> parse_dep mlfile dep | |
1eddfd50 C |
313 | | err -> |
314 | List.iter (function x -> Common.pr2 (x^"\n")) err; | |
315 | raise (CompileFailure ("Failed ocamldep for "^mlfile)) | |
413ffc02 | 316 | |
174d1640 C |
317 | let compile_bytecode_cmd flags mlfile = |
318 | let obj = (Filename.chop_extension mlfile) ^ ".cmo" in | |
aba5c457 | 319 | (obj, Printf.sprintf "%s -c %s %s %s" !Flag.ocamlc obj flags mlfile) |
413ffc02 | 320 | |
174d1640 C |
321 | let compile_native_cmd flags mlfile = |
322 | let obj = (Filename.chop_extension mlfile) ^ ".cmxs" in | |
aba5c457 C |
323 | (obj, |
324 | Printf.sprintf "%s -shared -o %s %s %s" !Flag.ocamlopt obj flags mlfile) | |
174d1640 C |
325 | |
326 | let compile mlfile cmd = | |
327 | Common.pr2 cmd; | |
328 | match Sys.command cmd with | |
329 | 0 -> () | |
330 | | _ -> raise (CompileFailure mlfile) | |
331 | ||
aba5c457 C |
332 | let rec load_obj obj = |
333 | try | |
334 | Dynlink.loadfile obj | |
335 | with Dynlink.Error e -> | |
336 | match e with | |
337 | Dynlink.Unsafe_file -> | |
338 | Dynlink.allow_unsafe_modules true; | |
339 | load_obj obj | |
340 | | _ -> | |
341 | Common.pr2 (Dynlink.error_message e); | |
342 | raise (LinkFailure obj) | |
343 | ||
344 | (* | |
345 | let link_lib (dir, name) = name ^ ext | |
346 | ||
347 | let link_libs libs = | |
348 | String.concat " " (List.map link_lib libs) | |
349 | *) | |
350 | ||
351 | let load_lib (dir, name) = | |
352 | let obj = dir ^ "/" ^name ^ ext in | |
353 | Common.pr2 ("Loading "^ obj ^"..."); | |
354 | load_obj obj | |
355 | ||
356 | let load_libs libs = | |
357 | List.iter load_lib libs | |
358 | ||
174d1640 | 359 | let load_file mlfile = |
aba5c457 C |
360 | let (ldlibs (* , lklibs *), inc) = dep_flag mlfile in |
361 | (* let linklibs = link_libs lklibs in *) | |
362 | let flags = | |
363 | Printf.sprintf | |
3a314143 C |
364 | "-thread -g -dtypes -I %s %s -I %s/globals -I %s/ocaml -I %s/parsing_c -I %s/commons " |
365 | sysdir inc Config.path Config.path Config.path Config.path in | |
174d1640 C |
366 | let (obj, cmd) = |
367 | if Dynlink.is_native | |
368 | then compile_native_cmd flags mlfile | |
aba5c457 C |
369 | else compile_bytecode_cmd flags mlfile in |
370 | compile mlfile cmd; | |
371 | Common.pr2 "Compilation OK!"; | |
372 | load_libs ldlibs; | |
373 | Common.pr2 "Loading ML code of the SP..."; | |
374 | try Dynlink.loadfile obj | |
375 | with Dynlink.Error e -> | |
376 | Common.pr2 (Dynlink.error_message e); | |
377 | raise (LinkFailure obj) | |
174d1640 C |
378 | |
379 | let clean_file mlfile = | |
380 | let basefile = Filename.chop_extension mlfile in | |
381 | let files = | |
382 | if Dynlink.is_native then | |
383 | [basefile ^ ".cmxs"; | |
384 | basefile ^ ".cmx"; | |
aba5c457 C |
385 | basefile ^ ".o"; |
386 | basefile ^ ".annot"] | |
174d1640 | 387 | else |
aba5c457 C |
388 | [basefile ^ ".cmo"; |
389 | basefile ^ ".annot"] | |
174d1640 C |
390 | in |
391 | Sys.remove mlfile; | |
392 | Sys.remove (basefile^".cmi"); | |
aba5c457 | 393 | List.iter (fun f -> try Sys.remove f with _ -> ()) files |
174d1640 C |
394 | |
395 | (* | |
396 | This function is used in testing.ml. | |
397 | Once the ML file is compiled and loaded, | |
398 | newly available functions are reported here. | |
399 | *) | |
400 | let test () = | |
401 | Hashtbl.iter | |
402 | (fun key fct -> | |
403 | Common.pr2 ("Fct registered: \""^key^"\"") | |
404 | ) Coccilib.fcts |