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38cbfe40 RK |
1 | ------------------------------------------------------------------------------ |
2 | -- -- | |
3 | -- GNAT COMPILER COMPONENTS -- | |
4 | -- -- | |
5 | -- L I B -- | |
6 | -- -- | |
7 | -- B o d y -- | |
8 | -- -- | |
748086b7 | 9 | -- Copyright (C) 1992-2009, Free Software Foundation, Inc. -- |
38cbfe40 RK |
10 | -- -- |
11 | -- GNAT is free software; you can redistribute it and/or modify it under -- | |
12 | -- terms of the GNU General Public License as published by the Free Soft- -- | |
748086b7 | 13 | -- ware Foundation; either version 3, or (at your option) any later ver- -- |
38cbfe40 RK |
14 | -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- |
15 | -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- | |
748086b7 JJ |
16 | -- or FITNESS FOR A PARTICULAR PURPOSE. -- |
17 | -- -- | |
18 | -- As a special exception under Section 7 of GPL version 3, you are granted -- | |
19 | -- additional permissions described in the GCC Runtime Library Exception, -- | |
20 | -- version 3.1, as published by the Free Software Foundation. -- | |
21 | -- -- | |
22 | -- You should have received a copy of the GNU General Public License and -- | |
23 | -- a copy of the GCC Runtime Library Exception along with this program; -- | |
24 | -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- | |
25 | -- <http://www.gnu.org/licenses/>. -- | |
38cbfe40 RK |
26 | -- -- |
27 | -- GNAT was originally developed by the GNAT team at New York University. -- | |
71ff80dc | 28 | -- Extensive contributions were provided by Ada Core Technologies Inc. -- |
38cbfe40 RK |
29 | -- -- |
30 | ------------------------------------------------------------------------------ | |
31 | ||
32 | pragma Style_Checks (All_Checks); | |
33 | -- Subprogram ordering not enforced in this unit | |
34 | -- (because of some logical groupings). | |
35 | ||
36 | with Atree; use Atree; | |
37 | with Einfo; use Einfo; | |
38 | with Fname; use Fname; | |
38cbfe40 RK |
39 | with Output; use Output; |
40 | with Sinfo; use Sinfo; | |
41 | with Sinput; use Sinput; | |
42 | with Stand; use Stand; | |
43 | with Stringt; use Stringt; | |
44 | with Tree_IO; use Tree_IO; | |
45 | with Uname; use Uname; | |
46 | ||
47 | package body Lib is | |
48 | ||
0da2c8ac | 49 | Switch_Storing_Enabled : Boolean := True; |
7fee6a39 | 50 | -- Controlled by Enable_Switch_Storing/Disable_Switch_Storing |
0da2c8ac | 51 | |
38cbfe40 RK |
52 | ----------------------- |
53 | -- Local Subprograms -- | |
54 | ----------------------- | |
55 | ||
56 | type SEU_Result is ( | |
57 | Yes_Before, -- S1 is in same extended unit as S2 and appears before it | |
58 | Yes_Same, -- S1 is in same extended unit as S2, Slocs are the same | |
59 | Yes_After, -- S1 is in same extended unit as S2, and appears after it | |
60 | No); -- S2 is not in same extended unit as S2 | |
61 | ||
62 | function Check_Same_Extended_Unit (S1, S2 : Source_Ptr) return SEU_Result; | |
63 | -- Used by In_Same_Extended_Unit and Earlier_In_Extended_Unit. Returns | |
64 | -- value as described above. | |
65 | ||
68e2ea27 TQ |
66 | function Get_Code_Or_Source_Unit |
67 | (S : Source_Ptr; | |
68 | Unwind_Instances : Boolean) return Unit_Number_Type; | |
69 | -- Common code for Get_Code_Unit (get unit of instantiation for location) | |
70 | -- and Get_Source_Unit (get unit of template for location). | |
71 | ||
38cbfe40 RK |
72 | -------------------------------------------- |
73 | -- Access Functions for Unit Table Fields -- | |
74 | -------------------------------------------- | |
75 | ||
76 | function Cunit (U : Unit_Number_Type) return Node_Id is | |
77 | begin | |
78 | return Units.Table (U).Cunit; | |
79 | end Cunit; | |
80 | ||
81 | function Cunit_Entity (U : Unit_Number_Type) return Entity_Id is | |
82 | begin | |
83 | return Units.Table (U).Cunit_Entity; | |
84 | end Cunit_Entity; | |
85 | ||
86 | function Dependency_Num (U : Unit_Number_Type) return Nat is | |
87 | begin | |
88 | return Units.Table (U).Dependency_Num; | |
89 | end Dependency_Num; | |
90 | ||
38cbfe40 RK |
91 | function Dynamic_Elab (U : Unit_Number_Type) return Boolean is |
92 | begin | |
93 | return Units.Table (U).Dynamic_Elab; | |
94 | end Dynamic_Elab; | |
95 | ||
96 | function Error_Location (U : Unit_Number_Type) return Source_Ptr is | |
97 | begin | |
98 | return Units.Table (U).Error_Location; | |
99 | end Error_Location; | |
100 | ||
101 | function Expected_Unit (U : Unit_Number_Type) return Unit_Name_Type is | |
102 | begin | |
103 | return Units.Table (U).Expected_Unit; | |
104 | end Expected_Unit; | |
105 | ||
106 | function Fatal_Error (U : Unit_Number_Type) return Boolean is | |
107 | begin | |
108 | return Units.Table (U).Fatal_Error; | |
109 | end Fatal_Error; | |
110 | ||
111 | function Generate_Code (U : Unit_Number_Type) return Boolean is | |
112 | begin | |
113 | return Units.Table (U).Generate_Code; | |
114 | end Generate_Code; | |
115 | ||
116 | function Has_RACW (U : Unit_Number_Type) return Boolean is | |
117 | begin | |
118 | return Units.Table (U).Has_RACW; | |
119 | end Has_RACW; | |
120 | ||
2d9ea47f RD |
121 | function Is_Compiler_Unit (U : Unit_Number_Type) return Boolean is |
122 | begin | |
123 | return Units.Table (U).Is_Compiler_Unit; | |
124 | end Is_Compiler_Unit; | |
125 | ||
38cbfe40 RK |
126 | function Ident_String (U : Unit_Number_Type) return Node_Id is |
127 | begin | |
128 | return Units.Table (U).Ident_String; | |
129 | end Ident_String; | |
130 | ||
131 | function Loading (U : Unit_Number_Type) return Boolean is | |
132 | begin | |
133 | return Units.Table (U).Loading; | |
134 | end Loading; | |
135 | ||
136 | function Main_Priority (U : Unit_Number_Type) return Int is | |
137 | begin | |
138 | return Units.Table (U).Main_Priority; | |
139 | end Main_Priority; | |
140 | ||
2820d220 AC |
141 | function Munit_Index (U : Unit_Number_Type) return Nat is |
142 | begin | |
143 | return Units.Table (U).Munit_Index; | |
144 | end Munit_Index; | |
145 | ||
ce4a6e84 RD |
146 | function OA_Setting (U : Unit_Number_Type) return Character is |
147 | begin | |
148 | return Units.Table (U).OA_Setting; | |
149 | end OA_Setting; | |
150 | ||
38cbfe40 RK |
151 | function Source_Index (U : Unit_Number_Type) return Source_File_Index is |
152 | begin | |
153 | return Units.Table (U).Source_Index; | |
154 | end Source_Index; | |
155 | ||
156 | function Unit_File_Name (U : Unit_Number_Type) return File_Name_Type is | |
157 | begin | |
158 | return Units.Table (U).Unit_File_Name; | |
159 | end Unit_File_Name; | |
160 | ||
161 | function Unit_Name (U : Unit_Number_Type) return Unit_Name_Type is | |
162 | begin | |
163 | return Units.Table (U).Unit_Name; | |
164 | end Unit_Name; | |
165 | ||
166 | ------------------------------------------ | |
167 | -- Subprograms to Set Unit Table Fields -- | |
168 | ------------------------------------------ | |
169 | ||
170 | procedure Set_Cunit (U : Unit_Number_Type; N : Node_Id) is | |
171 | begin | |
172 | Units.Table (U).Cunit := N; | |
173 | end Set_Cunit; | |
174 | ||
175 | procedure Set_Cunit_Entity (U : Unit_Number_Type; E : Entity_Id) is | |
176 | begin | |
177 | Units.Table (U).Cunit_Entity := E; | |
178 | Set_Is_Compilation_Unit (E); | |
179 | end Set_Cunit_Entity; | |
180 | ||
181 | procedure Set_Dynamic_Elab (U : Unit_Number_Type; B : Boolean := True) is | |
182 | begin | |
183 | Units.Table (U).Dynamic_Elab := B; | |
184 | end Set_Dynamic_Elab; | |
185 | ||
186 | procedure Set_Error_Location (U : Unit_Number_Type; W : Source_Ptr) is | |
187 | begin | |
188 | Units.Table (U).Error_Location := W; | |
189 | end Set_Error_Location; | |
190 | ||
191 | procedure Set_Fatal_Error (U : Unit_Number_Type; B : Boolean := True) is | |
192 | begin | |
07fc65c4 | 193 | Units.Table (U).Fatal_Error := B; |
38cbfe40 RK |
194 | end Set_Fatal_Error; |
195 | ||
196 | procedure Set_Generate_Code (U : Unit_Number_Type; B : Boolean := True) is | |
197 | begin | |
198 | Units.Table (U).Generate_Code := B; | |
199 | end Set_Generate_Code; | |
200 | ||
201 | procedure Set_Has_RACW (U : Unit_Number_Type; B : Boolean := True) is | |
202 | begin | |
203 | Units.Table (U).Has_RACW := B; | |
204 | end Set_Has_RACW; | |
205 | ||
2d9ea47f RD |
206 | procedure Set_Is_Compiler_Unit |
207 | (U : Unit_Number_Type; | |
208 | B : Boolean := True) | |
209 | is | |
210 | begin | |
211 | Units.Table (U).Is_Compiler_Unit := B; | |
212 | end Set_Is_Compiler_Unit; | |
213 | ||
38cbfe40 RK |
214 | procedure Set_Ident_String (U : Unit_Number_Type; N : Node_Id) is |
215 | begin | |
216 | Units.Table (U).Ident_String := N; | |
217 | end Set_Ident_String; | |
218 | ||
219 | procedure Set_Loading (U : Unit_Number_Type; B : Boolean := True) is | |
220 | begin | |
221 | Units.Table (U).Loading := B; | |
222 | end Set_Loading; | |
223 | ||
224 | procedure Set_Main_Priority (U : Unit_Number_Type; P : Int) is | |
225 | begin | |
226 | Units.Table (U).Main_Priority := P; | |
227 | end Set_Main_Priority; | |
228 | ||
ce4a6e84 RD |
229 | procedure Set_OA_Setting (U : Unit_Number_Type; C : Character) is |
230 | begin | |
231 | Units.Table (U).OA_Setting := C; | |
232 | end Set_OA_Setting; | |
233 | ||
38cbfe40 RK |
234 | procedure Set_Unit_Name (U : Unit_Number_Type; N : Unit_Name_Type) is |
235 | begin | |
236 | Units.Table (U).Unit_Name := N; | |
237 | end Set_Unit_Name; | |
238 | ||
239 | ------------------------------ | |
240 | -- Check_Same_Extended_Unit -- | |
241 | ------------------------------ | |
242 | ||
243 | function Check_Same_Extended_Unit (S1, S2 : Source_Ptr) return SEU_Result is | |
244 | Sloc1 : Source_Ptr; | |
245 | Sloc2 : Source_Ptr; | |
246 | Sind1 : Source_File_Index; | |
247 | Sind2 : Source_File_Index; | |
248 | Inst1 : Source_Ptr; | |
249 | Inst2 : Source_Ptr; | |
250 | Unum1 : Unit_Number_Type; | |
251 | Unum2 : Unit_Number_Type; | |
252 | Unit1 : Node_Id; | |
253 | Unit2 : Node_Id; | |
254 | Depth1 : Nat; | |
255 | Depth2 : Nat; | |
256 | ||
257 | begin | |
258 | if S1 = No_Location or else S2 = No_Location then | |
259 | return No; | |
260 | ||
261 | elsif S1 = Standard_Location then | |
262 | if S2 = Standard_Location then | |
263 | return Yes_Same; | |
264 | else | |
265 | return No; | |
266 | end if; | |
267 | ||
268 | elsif S2 = Standard_Location then | |
269 | return No; | |
270 | end if; | |
271 | ||
272 | Sloc1 := S1; | |
273 | Sloc2 := S2; | |
274 | Unum1 := Get_Code_Unit (Sloc1); | |
275 | Unum2 := Get_Code_Unit (Sloc2); | |
276 | ||
277 | loop | |
278 | Sind1 := Get_Source_File_Index (Sloc1); | |
279 | Sind2 := Get_Source_File_Index (Sloc2); | |
280 | ||
281 | if Sind1 = Sind2 then | |
282 | if Sloc1 < Sloc2 then | |
283 | return Yes_Before; | |
284 | elsif Sloc1 > Sloc2 then | |
285 | return Yes_After; | |
286 | else | |
287 | return Yes_Same; | |
288 | end if; | |
289 | end if; | |
290 | ||
291 | -- OK, the two nodes are in separate source elements, but this is not | |
292 | -- decisive, because of the issue of subunits and instantiations. | |
293 | ||
294 | -- First we deal with subunits, since if the subunit is in an | |
295 | -- instantiation, we know that the parent is in the corresponding | |
296 | -- instantiation, since that is the only way we can have a subunit | |
297 | -- that is part of an instantiation. | |
298 | ||
299 | Unit1 := Unit (Cunit (Unum1)); | |
300 | Unit2 := Unit (Cunit (Unum2)); | |
301 | ||
302 | if Nkind (Unit1) = N_Subunit | |
303 | and then Present (Corresponding_Stub (Unit1)) | |
304 | then | |
305 | -- Both in subunits. They could have a common ancestor. If they | |
306 | -- do, then the deeper one must have a longer unit name. Replace | |
307 | -- the deeper one with its corresponding stub, in order to find | |
308 | -- nearest common ancestor, if any. | |
309 | ||
310 | if Nkind (Unit2) = N_Subunit | |
311 | and then Present (Corresponding_Stub (Unit2)) | |
312 | then | |
313 | if Length_Of_Name (Unit_Name (Unum1)) < | |
314 | Length_Of_Name (Unit_Name (Unum2)) | |
315 | then | |
316 | Sloc2 := Sloc (Corresponding_Stub (Unit2)); | |
317 | Unum2 := Get_Source_Unit (Sloc2); | |
318 | goto Continue; | |
319 | ||
320 | else | |
321 | Sloc1 := Sloc (Corresponding_Stub (Unit1)); | |
322 | Unum1 := Get_Source_Unit (Sloc1); | |
323 | goto Continue; | |
324 | end if; | |
325 | ||
326 | -- Nod1 in subunit, Nod2 not | |
327 | ||
328 | else | |
329 | Sloc1 := Sloc (Corresponding_Stub (Unit1)); | |
330 | Unum1 := Get_Source_Unit (Sloc1); | |
331 | goto Continue; | |
332 | end if; | |
333 | ||
334 | -- Nod2 in subunit, Nod1 not | |
335 | ||
336 | elsif Nkind (Unit2) = N_Subunit | |
337 | and then Present (Corresponding_Stub (Unit2)) | |
338 | then | |
339 | Sloc2 := Sloc (Corresponding_Stub (Unit2)); | |
340 | Unum2 := Get_Source_Unit (Sloc2); | |
341 | goto Continue; | |
342 | end if; | |
343 | ||
344 | -- At this stage we know that neither is a subunit, so we deal | |
dec55d76 | 345 | -- with instantiations, since we could have a common ancestor |
38cbfe40 RK |
346 | |
347 | Inst1 := Instantiation (Sind1); | |
348 | Inst2 := Instantiation (Sind2); | |
349 | ||
350 | if Inst1 /= No_Location then | |
351 | ||
352 | -- Both are instantiations | |
353 | ||
354 | if Inst2 /= No_Location then | |
355 | ||
356 | Depth1 := Instantiation_Depth (Sloc1); | |
357 | Depth2 := Instantiation_Depth (Sloc2); | |
358 | ||
359 | if Depth1 < Depth2 then | |
360 | Sloc2 := Inst2; | |
361 | Unum2 := Get_Source_Unit (Sloc2); | |
362 | goto Continue; | |
363 | ||
364 | elsif Depth1 > Depth2 then | |
365 | Sloc1 := Inst1; | |
366 | Unum1 := Get_Source_Unit (Sloc1); | |
367 | goto Continue; | |
368 | ||
369 | else | |
370 | Sloc1 := Inst1; | |
371 | Sloc2 := Inst2; | |
372 | Unum1 := Get_Source_Unit (Sloc1); | |
373 | Unum2 := Get_Source_Unit (Sloc2); | |
374 | goto Continue; | |
375 | end if; | |
376 | ||
377 | -- Only first node is in instantiation | |
378 | ||
379 | else | |
380 | Sloc1 := Inst1; | |
381 | Unum1 := Get_Source_Unit (Sloc1); | |
382 | goto Continue; | |
383 | end if; | |
384 | ||
385 | -- Only second node is instantiation | |
386 | ||
387 | elsif Inst2 /= No_Location then | |
388 | Sloc2 := Inst2; | |
389 | Unum2 := Get_Source_Unit (Sloc2); | |
390 | goto Continue; | |
391 | end if; | |
392 | ||
393 | -- No instantiations involved, so we are not in the same unit | |
394 | -- However, there is one case still to check, namely the case | |
395 | -- where one location is in the spec, and the other in the | |
396 | -- corresponding body (the spec location is earlier). | |
397 | ||
398 | if Nkind (Unit1) = N_Subprogram_Body | |
399 | or else | |
400 | Nkind (Unit1) = N_Package_Body | |
401 | then | |
402 | if Library_Unit (Cunit (Unum1)) = Cunit (Unum2) then | |
403 | return Yes_After; | |
404 | end if; | |
405 | ||
406 | elsif Nkind (Unit2) = N_Subprogram_Body | |
407 | or else | |
408 | Nkind (Unit2) = N_Package_Body | |
409 | then | |
410 | if Library_Unit (Cunit (Unum2)) = Cunit (Unum1) then | |
411 | return Yes_Before; | |
412 | end if; | |
413 | end if; | |
414 | ||
415 | -- If that special case does not occur, then we are certain that | |
416 | -- the two locations are really in separate units. | |
417 | ||
418 | return No; | |
419 | ||
420 | <<Continue>> | |
421 | null; | |
422 | end loop; | |
38cbfe40 RK |
423 | end Check_Same_Extended_Unit; |
424 | ||
07fc65c4 GB |
425 | ------------------------------- |
426 | -- Compilation_Switches_Last -- | |
427 | ------------------------------- | |
428 | ||
429 | function Compilation_Switches_Last return Nat is | |
430 | begin | |
431 | return Compilation_Switches.Last; | |
432 | end Compilation_Switches_Last; | |
433 | ||
7fee6a39 BZ |
434 | --------------------------- |
435 | -- Enable_Switch_Storing -- | |
436 | --------------------------- | |
437 | ||
438 | procedure Enable_Switch_Storing is | |
439 | begin | |
440 | Switch_Storing_Enabled := True; | |
441 | end Enable_Switch_Storing; | |
442 | ||
443 | ---------------------------- | |
444 | -- Disable_Switch_Storing -- | |
445 | ---------------------------- | |
446 | ||
0da2c8ac AC |
447 | procedure Disable_Switch_Storing is |
448 | begin | |
449 | Switch_Storing_Enabled := False; | |
450 | end Disable_Switch_Storing; | |
451 | ||
38cbfe40 RK |
452 | ------------------------------ |
453 | -- Earlier_In_Extended_Unit -- | |
454 | ------------------------------ | |
455 | ||
456 | function Earlier_In_Extended_Unit (S1, S2 : Source_Ptr) return Boolean is | |
457 | begin | |
458 | return Check_Same_Extended_Unit (S1, S2) = Yes_Before; | |
459 | end Earlier_In_Extended_Unit; | |
460 | ||
461 | ---------------------------- | |
462 | -- Entity_Is_In_Main_Unit -- | |
463 | ---------------------------- | |
464 | ||
465 | function Entity_Is_In_Main_Unit (E : Entity_Id) return Boolean is | |
466 | S : Entity_Id; | |
467 | ||
468 | begin | |
469 | S := Scope (E); | |
470 | ||
471 | while S /= Standard_Standard loop | |
472 | if S = Main_Unit_Entity then | |
473 | return True; | |
474 | elsif Ekind (S) = E_Package and then Is_Child_Unit (S) then | |
475 | return False; | |
476 | else | |
477 | S := Scope (S); | |
478 | end if; | |
479 | end loop; | |
480 | ||
481 | return False; | |
482 | end Entity_Is_In_Main_Unit; | |
483 | ||
9410151a TQ |
484 | -------------------------- |
485 | -- Generic_May_Lack_ALI -- | |
486 | -------------------------- | |
487 | ||
488 | function Generic_May_Lack_ALI (Sfile : File_Name_Type) return Boolean is | |
489 | begin | |
490 | -- We allow internal generic units to be used without having a | |
491 | -- corresponding ALI files to help bootstrapping with older compilers | |
492 | -- that did not support generating ALIs for such generics. It is safe | |
493 | -- to do so because the only thing the generated code would contain | |
494 | -- is the elaboration boolean, and we are careful to elaborate all | |
495 | -- predefined units first anyway. | |
496 | ||
497 | return Is_Internal_File_Name | |
498 | (Fname => Sfile, | |
499 | Renamings_Included => True); | |
500 | end Generic_May_Lack_ALI; | |
fbf5a39b | 501 | |
68e2ea27 TQ |
502 | ----------------------------- |
503 | -- Get_Code_Or_Source_Unit -- | |
504 | ----------------------------- | |
38cbfe40 | 505 | |
68e2ea27 TQ |
506 | function Get_Code_Or_Source_Unit |
507 | (S : Source_Ptr; | |
508 | Unwind_Instances : Boolean) return Unit_Number_Type | |
509 | is | |
38cbfe40 | 510 | begin |
fbf5a39b AC |
511 | -- Search table unless we have No_Location, which can happen if the |
512 | -- relevant location has not been set yet. Happens for example when | |
513 | -- we obtain Sloc (Cunit (Main_Unit)) before it is set. | |
38cbfe40 | 514 | |
fbf5a39b AC |
515 | if S /= No_Location then |
516 | declare | |
68e2ea27 TQ |
517 | Source_File : Source_File_Index; |
518 | Source_Unit : Unit_Number_Type; | |
fbf5a39b AC |
519 | |
520 | begin | |
68e2ea27 TQ |
521 | Source_File := Get_Source_File_Index (S); |
522 | ||
523 | if Unwind_Instances then | |
524 | while Template (Source_File) /= No_Source_File loop | |
525 | Source_File := Template (Source_File); | |
526 | end loop; | |
527 | end if; | |
528 | ||
529 | Source_Unit := Unit (Source_File); | |
530 | ||
531 | if Source_Unit /= No_Unit then | |
532 | return Source_Unit; | |
533 | end if; | |
fbf5a39b AC |
534 | end; |
535 | end if; | |
536 | ||
68e2ea27 TQ |
537 | -- If S was No_Location, or was not in the table, we must be in the main |
538 | -- source unit (and the value has not been placed in the table yet), | |
539 | -- or in one of the configuration pragma files. | |
38cbfe40 RK |
540 | |
541 | return Main_Unit; | |
68e2ea27 TQ |
542 | end Get_Code_Or_Source_Unit; |
543 | ||
544 | ------------------- | |
545 | -- Get_Code_Unit -- | |
546 | ------------------- | |
547 | ||
548 | function Get_Code_Unit (S : Source_Ptr) return Unit_Number_Type is | |
549 | begin | |
550 | return Get_Code_Or_Source_Unit (Top_Level_Location (S), | |
551 | Unwind_Instances => False); | |
38cbfe40 RK |
552 | end Get_Code_Unit; |
553 | ||
07fc65c4 | 554 | function Get_Code_Unit (N : Node_Or_Entity_Id) return Unit_Number_Type is |
38cbfe40 RK |
555 | begin |
556 | return Get_Code_Unit (Sloc (N)); | |
557 | end Get_Code_Unit; | |
558 | ||
559 | ---------------------------- | |
560 | -- Get_Compilation_Switch -- | |
561 | ---------------------------- | |
562 | ||
563 | function Get_Compilation_Switch (N : Pos) return String_Ptr is | |
564 | begin | |
07fc65c4 | 565 | if N <= Compilation_Switches.Last then |
38cbfe40 RK |
566 | return Compilation_Switches.Table (N); |
567 | ||
568 | else | |
569 | return null; | |
570 | end if; | |
571 | end Get_Compilation_Switch; | |
572 | ||
573 | ---------------------------------- | |
574 | -- Get_Cunit_Entity_Unit_Number -- | |
575 | ---------------------------------- | |
576 | ||
577 | function Get_Cunit_Entity_Unit_Number | |
9596236a | 578 | (E : Entity_Id) return Unit_Number_Type |
38cbfe40 RK |
579 | is |
580 | begin | |
581 | for U in Units.First .. Units.Last loop | |
582 | if Cunit_Entity (U) = E then | |
583 | return U; | |
584 | end if; | |
585 | end loop; | |
586 | ||
587 | -- If not in the table, must be the main source unit, and we just | |
588 | -- have not got it put into the table yet. | |
589 | ||
590 | return Main_Unit; | |
591 | end Get_Cunit_Entity_Unit_Number; | |
592 | ||
593 | --------------------------- | |
594 | -- Get_Cunit_Unit_Number -- | |
595 | --------------------------- | |
596 | ||
597 | function Get_Cunit_Unit_Number (N : Node_Id) return Unit_Number_Type is | |
598 | begin | |
599 | for U in Units.First .. Units.Last loop | |
600 | if Cunit (U) = N then | |
601 | return U; | |
602 | end if; | |
603 | end loop; | |
604 | ||
605 | -- If not in the table, must be the main source unit, and we just | |
606 | -- have not got it put into the table yet. | |
607 | ||
608 | return Main_Unit; | |
609 | end Get_Cunit_Unit_Number; | |
610 | ||
611 | --------------------- | |
612 | -- Get_Source_Unit -- | |
613 | --------------------- | |
614 | ||
615 | function Get_Source_Unit (S : Source_Ptr) return Unit_Number_Type is | |
38cbfe40 | 616 | begin |
68e2ea27 | 617 | return Get_Code_Or_Source_Unit (S, Unwind_Instances => True); |
38cbfe40 RK |
618 | end Get_Source_Unit; |
619 | ||
07fc65c4 | 620 | function Get_Source_Unit (N : Node_Or_Entity_Id) return Unit_Number_Type is |
38cbfe40 RK |
621 | begin |
622 | return Get_Source_Unit (Sloc (N)); | |
623 | end Get_Source_Unit; | |
624 | ||
625 | -------------------------------- | |
626 | -- In_Extended_Main_Code_Unit -- | |
627 | -------------------------------- | |
628 | ||
07fc65c4 | 629 | function In_Extended_Main_Code_Unit |
9596236a | 630 | (N : Node_Or_Entity_Id) return Boolean |
07fc65c4 | 631 | is |
38cbfe40 RK |
632 | begin |
633 | if Sloc (N) = Standard_Location then | |
634 | return True; | |
635 | ||
636 | elsif Sloc (N) = No_Location then | |
637 | return False; | |
638 | ||
639 | -- Special case Itypes to test the Sloc of the associated node. The | |
640 | -- reason we do this is for possible calls from gigi after -gnatD | |
641 | -- processing is complete in sprint. This processing updates the | |
642 | -- sloc fields of all nodes in the tree, but itypes are not in the | |
643 | -- tree so their slocs do not get updated. | |
644 | ||
645 | elsif Nkind (N) = N_Defining_Identifier | |
646 | and then Is_Itype (N) | |
647 | then | |
648 | return In_Extended_Main_Code_Unit (Associated_Node_For_Itype (N)); | |
649 | ||
fbf5a39b AC |
650 | -- Otherwise see if we are in the main unit |
651 | ||
38cbfe40 RK |
652 | elsif Get_Code_Unit (Sloc (N)) = Get_Code_Unit (Cunit (Main_Unit)) then |
653 | return True; | |
654 | ||
fbf5a39b AC |
655 | -- Node may be in spec (or subunit etc) of main unit |
656 | ||
657 | else | |
38cbfe40 | 658 | return |
cc335f43 | 659 | In_Same_Extended_Unit (N, Cunit (Main_Unit)); |
38cbfe40 RK |
660 | end if; |
661 | end In_Extended_Main_Code_Unit; | |
662 | ||
9596236a | 663 | function In_Extended_Main_Code_Unit (Loc : Source_Ptr) return Boolean is |
fbf5a39b AC |
664 | begin |
665 | if Loc = Standard_Location then | |
666 | return True; | |
667 | ||
668 | elsif Loc = No_Location then | |
669 | return False; | |
670 | ||
671 | -- Otherwise see if we are in the main unit | |
672 | ||
673 | elsif Get_Code_Unit (Loc) = Get_Code_Unit (Cunit (Main_Unit)) then | |
674 | return True; | |
675 | ||
676 | -- Location may be in spec (or subunit etc) of main unit | |
677 | ||
678 | else | |
679 | return | |
680 | In_Same_Extended_Unit (Loc, Sloc (Cunit (Main_Unit))); | |
681 | end if; | |
682 | end In_Extended_Main_Code_Unit; | |
683 | ||
38cbfe40 RK |
684 | ---------------------------------- |
685 | -- In_Extended_Main_Source_Unit -- | |
686 | ---------------------------------- | |
687 | ||
07fc65c4 | 688 | function In_Extended_Main_Source_Unit |
9596236a | 689 | (N : Node_Or_Entity_Id) return Boolean |
07fc65c4 | 690 | is |
fbf5a39b AC |
691 | Nloc : constant Source_Ptr := Sloc (N); |
692 | Mloc : constant Source_Ptr := Sloc (Cunit (Main_Unit)); | |
693 | ||
38cbfe40 | 694 | begin |
fbf5a39b AC |
695 | -- If Mloc is not set, it means we are still parsing the main unit, |
696 | -- so everything so far is in the extended main source unit. | |
697 | ||
698 | if Mloc = No_Location then | |
38cbfe40 RK |
699 | return True; |
700 | ||
fbf5a39b AC |
701 | -- Special value cases |
702 | ||
703 | elsif Nloc = Standard_Location then | |
704 | return True; | |
705 | ||
706 | elsif Nloc = No_Location then | |
38cbfe40 RK |
707 | return False; |
708 | ||
709 | -- Special case Itypes to test the Sloc of the associated node. The | |
710 | -- reason we do this is for possible calls from gigi after -gnatD | |
711 | -- processing is complete in sprint. This processing updates the | |
712 | -- sloc fields of all nodes in the tree, but itypes are not in the | |
713 | -- tree so their slocs do not get updated. | |
714 | ||
715 | elsif Nkind (N) = N_Defining_Identifier | |
716 | and then Is_Itype (N) | |
717 | then | |
718 | return In_Extended_Main_Source_Unit (Associated_Node_For_Itype (N)); | |
719 | ||
fbf5a39b AC |
720 | -- Otherwise compare original locations to see if in same unit |
721 | ||
38cbfe40 RK |
722 | else |
723 | return | |
724 | In_Same_Extended_Unit | |
fbf5a39b AC |
725 | (Original_Location (Nloc), Original_Location (Mloc)); |
726 | end if; | |
727 | end In_Extended_Main_Source_Unit; | |
728 | ||
729 | function In_Extended_Main_Source_Unit | |
9596236a | 730 | (Loc : Source_Ptr) return Boolean |
fbf5a39b AC |
731 | is |
732 | Mloc : constant Source_Ptr := Sloc (Cunit (Main_Unit)); | |
733 | ||
734 | begin | |
735 | -- If Mloc is not set, it means we are still parsing the main unit, | |
736 | -- so everything so far is in the extended main source unit. | |
737 | ||
738 | if Mloc = No_Location then | |
739 | return True; | |
740 | ||
741 | -- Special value cases | |
742 | ||
743 | elsif Loc = Standard_Location then | |
744 | return True; | |
745 | ||
746 | elsif Loc = No_Location then | |
747 | return False; | |
748 | ||
749 | -- Otherwise compare original locations to see if in same unit | |
750 | ||
751 | else | |
752 | return | |
753 | In_Same_Extended_Unit | |
754 | (Original_Location (Loc), Original_Location (Mloc)); | |
38cbfe40 RK |
755 | end if; |
756 | end In_Extended_Main_Source_Unit; | |
757 | ||
9b832db5 RD |
758 | ------------------------ |
759 | -- In_Predefined_Unit -- | |
760 | ------------------------ | |
761 | ||
762 | function In_Predefined_Unit (N : Node_Or_Entity_Id) return Boolean is | |
763 | begin | |
764 | return In_Predefined_Unit (Sloc (N)); | |
765 | end In_Predefined_Unit; | |
766 | ||
767 | function In_Predefined_Unit (S : Source_Ptr) return Boolean is | |
768 | Unit : constant Unit_Number_Type := Get_Source_Unit (S); | |
769 | File : constant File_Name_Type := Unit_File_Name (Unit); | |
770 | begin | |
771 | return Is_Predefined_File_Name (File); | |
772 | end In_Predefined_Unit; | |
773 | ||
38cbfe40 RK |
774 | ----------------------- |
775 | -- In_Same_Code_Unit -- | |
776 | ----------------------- | |
777 | ||
778 | function In_Same_Code_Unit (N1, N2 : Node_Or_Entity_Id) return Boolean is | |
779 | S1 : constant Source_Ptr := Sloc (N1); | |
780 | S2 : constant Source_Ptr := Sloc (N2); | |
781 | ||
782 | begin | |
783 | if S1 = No_Location or else S2 = No_Location then | |
784 | return False; | |
785 | ||
786 | elsif S1 = Standard_Location then | |
787 | return S2 = Standard_Location; | |
788 | ||
789 | elsif S2 = Standard_Location then | |
790 | return False; | |
791 | end if; | |
792 | ||
793 | return Get_Code_Unit (N1) = Get_Code_Unit (N2); | |
794 | end In_Same_Code_Unit; | |
795 | ||
796 | --------------------------- | |
797 | -- In_Same_Extended_Unit -- | |
798 | --------------------------- | |
799 | ||
cc335f43 AC |
800 | function In_Same_Extended_Unit |
801 | (N1, N2 : Node_Or_Entity_Id) return Boolean | |
802 | is | |
803 | begin | |
804 | return Check_Same_Extended_Unit (Sloc (N1), Sloc (N2)) /= No; | |
805 | end In_Same_Extended_Unit; | |
806 | ||
38cbfe40 RK |
807 | function In_Same_Extended_Unit (S1, S2 : Source_Ptr) return Boolean is |
808 | begin | |
809 | return Check_Same_Extended_Unit (S1, S2) /= No; | |
810 | end In_Same_Extended_Unit; | |
811 | ||
812 | ------------------------- | |
813 | -- In_Same_Source_Unit -- | |
814 | ------------------------- | |
815 | ||
816 | function In_Same_Source_Unit (N1, N2 : Node_Or_Entity_Id) return Boolean is | |
817 | S1 : constant Source_Ptr := Sloc (N1); | |
818 | S2 : constant Source_Ptr := Sloc (N2); | |
819 | ||
820 | begin | |
821 | if S1 = No_Location or else S2 = No_Location then | |
822 | return False; | |
823 | ||
824 | elsif S1 = Standard_Location then | |
825 | return S2 = Standard_Location; | |
826 | ||
827 | elsif S2 = Standard_Location then | |
828 | return False; | |
829 | end if; | |
830 | ||
831 | return Get_Source_Unit (N1) = Get_Source_Unit (N2); | |
832 | end In_Same_Source_Unit; | |
833 | ||
834 | ----------------------------- | |
835 | -- Increment_Serial_Number -- | |
836 | ----------------------------- | |
837 | ||
838 | function Increment_Serial_Number return Nat is | |
839 | TSN : Int renames Units.Table (Current_Sem_Unit).Serial_Number; | |
38cbfe40 RK |
840 | begin |
841 | TSN := TSN + 1; | |
842 | return TSN; | |
843 | end Increment_Serial_Number; | |
844 | ||
845 | ---------------- | |
846 | -- Initialize -- | |
847 | ---------------- | |
848 | ||
849 | procedure Initialize is | |
850 | begin | |
851 | Linker_Option_Lines.Init; | |
852 | Load_Stack.Init; | |
853 | Units.Init; | |
38cbfe40 RK |
854 | Compilation_Switches.Init; |
855 | end Initialize; | |
856 | ||
857 | --------------- | |
858 | -- Is_Loaded -- | |
859 | --------------- | |
860 | ||
861 | function Is_Loaded (Uname : Unit_Name_Type) return Boolean is | |
862 | begin | |
863 | for Unum in Units.First .. Units.Last loop | |
864 | if Uname = Unit_Name (Unum) then | |
865 | return True; | |
866 | end if; | |
867 | end loop; | |
868 | ||
869 | return False; | |
870 | end Is_Loaded; | |
871 | ||
872 | --------------- | |
873 | -- Last_Unit -- | |
874 | --------------- | |
875 | ||
876 | function Last_Unit return Unit_Number_Type is | |
877 | begin | |
878 | return Units.Last; | |
879 | end Last_Unit; | |
880 | ||
881 | ---------- | |
882 | -- List -- | |
883 | ---------- | |
884 | ||
885 | procedure List (File_Names_Only : Boolean := False) is separate; | |
886 | ||
887 | ---------- | |
888 | -- Lock -- | |
889 | ---------- | |
890 | ||
891 | procedure Lock is | |
892 | begin | |
893 | Linker_Option_Lines.Locked := True; | |
894 | Load_Stack.Locked := True; | |
895 | Units.Locked := True; | |
896 | Linker_Option_Lines.Release; | |
897 | Load_Stack.Release; | |
898 | Units.Release; | |
899 | end Lock; | |
900 | ||
901 | --------------- | |
902 | -- Num_Units -- | |
903 | --------------- | |
904 | ||
905 | function Num_Units return Nat is | |
906 | begin | |
907 | return Int (Units.Last) - Int (Main_Unit) + 1; | |
908 | end Num_Units; | |
909 | ||
6c1e24d3 AC |
910 | ----------------- |
911 | -- Remove_Unit -- | |
912 | ----------------- | |
913 | ||
914 | procedure Remove_Unit (U : Unit_Number_Type) is | |
915 | begin | |
916 | if U = Units.Last then | |
917 | Units.Decrement_Last; | |
918 | end if; | |
919 | end Remove_Unit; | |
920 | ||
38cbfe40 RK |
921 | ---------------------------------- |
922 | -- Replace_Linker_Option_String -- | |
923 | ---------------------------------- | |
924 | ||
925 | procedure Replace_Linker_Option_String | |
926 | (S : String_Id; Match_String : String) | |
927 | is | |
928 | begin | |
929 | if Match_String'Length > 0 then | |
930 | for J in 1 .. Linker_Option_Lines.Last loop | |
07fc65c4 | 931 | String_To_Name_Buffer (Linker_Option_Lines.Table (J).Option); |
38cbfe40 RK |
932 | |
933 | if Match_String = Name_Buffer (1 .. Match_String'Length) then | |
07fc65c4 | 934 | Linker_Option_Lines.Table (J).Option := S; |
38cbfe40 RK |
935 | return; |
936 | end if; | |
937 | end loop; | |
938 | end if; | |
939 | ||
940 | Store_Linker_Option_String (S); | |
941 | end Replace_Linker_Option_String; | |
942 | ||
943 | ---------- | |
944 | -- Sort -- | |
945 | ---------- | |
946 | ||
947 | procedure Sort (Tbl : in out Unit_Ref_Table) is separate; | |
948 | ||
949 | ------------------------------ | |
950 | -- Store_Compilation_Switch -- | |
951 | ------------------------------ | |
952 | ||
953 | procedure Store_Compilation_Switch (Switch : String) is | |
954 | begin | |
0da2c8ac AC |
955 | if Switch_Storing_Enabled then |
956 | Compilation_Switches.Increment_Last; | |
957 | Compilation_Switches.Table (Compilation_Switches.Last) := | |
958 | new String'(Switch); | |
fbf5a39b | 959 | |
0da2c8ac AC |
960 | -- Fix up --RTS flag which has been transformed by the gcc driver |
961 | -- into -fRTS | |
fbf5a39b | 962 | |
0da2c8ac AC |
963 | if Switch'Last >= Switch'First + 4 |
964 | and then Switch (Switch'First .. Switch'First + 4) = "-fRTS" | |
965 | then | |
966 | Compilation_Switches.Table | |
967 | (Compilation_Switches.Last) (Switch'First + 1) := '-'; | |
968 | end if; | |
fbf5a39b | 969 | end if; |
38cbfe40 RK |
970 | end Store_Compilation_Switch; |
971 | ||
972 | -------------------------------- | |
973 | -- Store_Linker_Option_String -- | |
974 | -------------------------------- | |
975 | ||
976 | procedure Store_Linker_Option_String (S : String_Id) is | |
977 | begin | |
978 | Linker_Option_Lines.Increment_Last; | |
07fc65c4 GB |
979 | Linker_Option_Lines.Table (Linker_Option_Lines.Last) := |
980 | (Option => S, Unit => Current_Sem_Unit); | |
38cbfe40 RK |
981 | end Store_Linker_Option_String; |
982 | ||
7324bf49 AC |
983 | ------------------------------- |
984 | -- Synchronize_Serial_Number -- | |
985 | ------------------------------- | |
986 | ||
987 | procedure Synchronize_Serial_Number is | |
988 | TSN : Int renames Units.Table (Current_Sem_Unit).Serial_Number; | |
989 | begin | |
990 | TSN := TSN + 1; | |
991 | end Synchronize_Serial_Number; | |
992 | ||
38cbfe40 RK |
993 | --------------- |
994 | -- Tree_Read -- | |
995 | --------------- | |
996 | ||
997 | procedure Tree_Read is | |
998 | N : Nat; | |
999 | S : String_Ptr; | |
1000 | ||
1001 | begin | |
1002 | Units.Tree_Read; | |
1003 | ||
2491bb7d SR |
1004 | -- Read Compilation_Switches table. First release the memory occupied |
1005 | -- by the previously loaded switches. | |
1006 | ||
1007 | for J in Compilation_Switches.First .. Compilation_Switches.Last loop | |
1008 | Free (Compilation_Switches.Table (J)); | |
1009 | end loop; | |
38cbfe40 RK |
1010 | |
1011 | Tree_Read_Int (N); | |
1012 | Compilation_Switches.Set_Last (N); | |
1013 | ||
1014 | for J in 1 .. N loop | |
1015 | Tree_Read_Str (S); | |
1016 | Compilation_Switches.Table (J) := S; | |
1017 | end loop; | |
1018 | end Tree_Read; | |
1019 | ||
1020 | ---------------- | |
1021 | -- Tree_Write -- | |
1022 | ---------------- | |
1023 | ||
1024 | procedure Tree_Write is | |
1025 | begin | |
1026 | Units.Tree_Write; | |
1027 | ||
1028 | -- Write Compilation_Switches table | |
1029 | ||
1030 | Tree_Write_Int (Compilation_Switches.Last); | |
1031 | ||
1032 | for J in 1 .. Compilation_Switches.Last loop | |
1033 | Tree_Write_Str (Compilation_Switches.Table (J)); | |
1034 | end loop; | |
1035 | end Tree_Write; | |
1036 | ||
1c28fe3a RD |
1037 | ------------ |
1038 | -- Unlock -- | |
1039 | ------------ | |
1040 | ||
1041 | procedure Unlock is | |
1042 | begin | |
1043 | Linker_Option_Lines.Locked := False; | |
1044 | Load_Stack.Locked := False; | |
1045 | Units.Locked := False; | |
1046 | end Unlock; | |
1047 | ||
38cbfe40 RK |
1048 | ----------------- |
1049 | -- Version_Get -- | |
1050 | ----------------- | |
1051 | ||
1052 | function Version_Get (U : Unit_Number_Type) return Word_Hex_String is | |
1053 | begin | |
1054 | return Get_Hex_String (Units.Table (U).Version); | |
1055 | end Version_Get; | |
1056 | ||
1057 | ------------------------ | |
1058 | -- Version_Referenced -- | |
1059 | ------------------------ | |
1060 | ||
1061 | procedure Version_Referenced (S : String_Id) is | |
1062 | begin | |
1063 | Version_Ref.Append (S); | |
1064 | end Version_Referenced; | |
1065 | ||
1066 | end Lib; |