1 ------------------------------------------------------------------------------
3 -- GNAT COMPILER COMPONENTS --
9 -- Copyright (C) 1992-2013, Free Software Foundation, Inc. --
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- --
13 -- ware Foundation; either version 3, or (at your option) any later ver- --
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 --
16 -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
17 -- for more details. You should have received a copy of the GNU General --
18 -- Public License distributed with GNAT; see file COPYING3. If not, go to --
19 -- http://www.gnu.org/licenses for a complete copy of the license. --
21 -- GNAT was originally developed by the GNAT team at New York University. --
22 -- Extensive contributions were provided by Ada Core Technologies Inc. --
24 ------------------------------------------------------------------------------
26 -- Warning: the output of this usage for warnings is duplicated in the GNAT
27 -- reference manual. Be sure to update that if you change the warning list.
29 with Targparm
; use Targparm
;
30 with Namet
; use Namet
;
32 with Osint
; use Osint
;
33 with Output
; use Output
;
35 with System
.WCh_Con
; use System
.WCh_Con
;
39 procedure Write_Switch_Char
(Sw
: String; Prefix
: String := "gnat");
40 -- Output two spaces followed by the switch character minus followed
41 -- Prefix, followed by the string given as the argument, and then enough
42 -- blanks to tab to column 13, i.e. assuming Sw is not longer than 5
43 -- characters, the maximum allowed, Write_Switch_Char will always output
44 -- exactly 12 characters.
46 -----------------------
47 -- Write_Switch_Char --
48 -----------------------
50 procedure Write_Switch_Char
(Sw
: String; Prefix
: String := "gnat") is
56 for J
in 1 .. 12 - 3 - Prefix
'Length - Sw
'Length loop
59 end Write_Switch_Char
;
61 -- Start of processing for Usage
66 -- For gnatmake, we are appending this information to the end of
67 -- the normal gnatmake output, so generate appropriate header
70 and then (Name_Buffer
(Name_Len
- 7 .. Name_Len
) = "gnatmake"
72 Name_Buffer
(Name_Len
- 7 .. Name_Len
) = "GNATMAKE")
75 Write_Line
("Compiler switches (passed to the compiler by gnatmake):");
80 Write_Str
("Usage: ");
83 Write_Str
("switches sfile");
89 Write_Line
(" sfile Source file name");
94 -- Common GCC switches not available for JVM, .NET, and AAMP targets
96 if VM_Target
= No_VM
and then not AAMP_On_Target
then
97 Write_Switch_Char
("fstack-check ", "");
98 Write_Line
("Generate stack checking code");
100 Write_Switch_Char
("fno-inline ", "");
101 Write_Line
("Inhibit all inlining (makes executable smaller)");
103 Write_Switch_Char
("fpreserve-control-flow ", "");
104 Write_Line
("Preserve control flow for coverage analysis");
107 -- Common switches available to both GCC and JGNAT
109 Write_Switch_Char
("g ", "");
110 Write_Line
("Generate debugging information");
112 Write_Switch_Char
("Idir ", "");
113 Write_Line
("Specify source files search path");
115 Write_Switch_Char
("I- ", "");
116 Write_Line
("Do not look for sources in current directory");
118 Write_Switch_Char
("O[0123] ", "");
119 Write_Line
("Control the optimization level");
123 -- Individual lines for switches. Write_Switch_Char outputs fourteen
124 -- characters, so the remaining message is allowed to be a maximum
125 -- of 65 characters to be comfortable on an 80 character device.
126 -- If the Write_Str fits on one line, it is short enough!
128 -- Line for -gnata switch
130 Write_Switch_Char
("a");
131 Write_Line
("Assertions enabled. Pragma Assert/Debug to be activated");
133 -- Line for -gnatA switch
135 Write_Switch_Char
("A");
136 Write_Line
("Avoid processing gnat.adc, if present file will be ignored");
138 -- Line for -gnatb switch
140 Write_Switch_Char
("b");
141 Write_Line
("Generate brief messages to stderr even if verbose mode set");
143 -- Line for -gnatB switch
145 Write_Switch_Char
("B");
146 Write_Line
("Assume no bad (invalid) values except in 'Valid attribute");
148 -- Line for -gnatc switch
150 Write_Switch_Char
("c");
151 Write_Line
("Check syntax and semantics only (no code generation)");
153 -- Line for -gnatC switch
155 Write_Switch_Char
("C");
156 Write_Line
("Generate CodePeer information (no code generation)");
158 -- Line for -gnatd switch
160 Write_Switch_Char
("d?");
161 Write_Line
("Compiler debug option ? ([.]a-z,A-Z,0-9), see debug.adb");
163 -- Line for -gnatD switch
165 Write_Switch_Char
("D");
166 Write_Line
("Debug expanded generated code (max line length = 72)");
167 Write_Switch_Char
("Dnn");
168 Write_Line
("Debug expanded generated code (max line length = nn)");
170 -- No line for -gnatea : internal switch
172 -- Line for -gnateA switch
174 Write_Switch_Char
("eA");
175 Write_Line
("Aliasing checks on subprogram parameters");
177 -- Line for -gnatec switch
179 Write_Switch_Char
("ec=?");
180 Write_Line
("Specify configuration pragmas file, e.g. -gnatec=/x/f.adc");
182 -- Line for -gnated switch
184 Write_Switch_Char
("ed");
185 Write_Line
("Disable synchronization of atomic variables");
187 -- Line for -gnateD switch
189 Write_Switch_Char
("eD?");
190 Write_Line
("Define or redefine preprocessing symbol, e.g. -gnateDsym=val");
192 -- Line for -gnateE switch
194 Write_Switch_Char
("eE");
195 Write_Line
("Generate extra information in exception messages");
197 -- Line for -gnatef switch
199 Write_Switch_Char
("ef");
200 Write_Line
("Full source path in brief error messages");
202 -- Line for -gnateF switch
204 Write_Switch_Char
("eF");
205 Write_Line
("Check overflow on predefined Float types");
207 -- Line for -gnateG switch
209 Write_Switch_Char
("eG");
210 Write_Line
("Generate preprocessed source");
212 -- Line for -gnatei switch
214 Write_Switch_Char
("einn");
215 Write_Line
("Set maximumum number of instantiations to nn");
217 -- Line for -gnateI switch
219 Write_Switch_Char
("eInn");
220 Write_Line
("Index in multi-unit source, e.g. -gnateI2");
222 -- Line for -gnatem switch
224 Write_Switch_Char
("em=?");
225 Write_Line
("Specify mapping file, e.g. -gnatem=mapping");
227 -- No line for -gnateO=? : internal switch
229 -- Line for -gnatep switch
231 Write_Switch_Char
("ep=?");
232 Write_Line
("Specify preprocessing data file, e.g. -gnatep=prep.data");
234 -- Line for -gnateP switch
236 Write_Switch_Char
("eP");
237 Write_Line
("Pure/Prelaborate errors generate warnings rather than errors");
239 -- Line for -gnateS switch
241 Write_Switch_Char
("eS");
242 Write_Line
("Generate SCO (Source Coverage Obligation) information");
244 -- Line for -gnatet switch
246 Write_Switch_Char
("et=?");
247 Write_Line
("Write target dependent information file ?, e.g. gnatet=tdf");
249 -- Line for -gnateT switch
251 Write_Switch_Char
("eT=?");
252 Write_Line
("Read target dependent information file ?, e.g. gnateT=tdf");
254 -- Line for -gnateu switch
256 Write_Switch_Char
("eu");
257 Write_Line
("Ignore unrecognized style/validity/warning switches");
259 -- Line for -gnateV switch
261 Write_Switch_Char
("eV");
262 Write_Line
("Validity checks on subprogram parameters");
264 -- Line for -gnateY switch
266 Write_Switch_Char
("eY");
267 Write_Line
("Ignore all Style_Checks pragmas in source");
269 -- No line for -gnatez : internal switch
271 -- Line for -gnatE switch
273 Write_Switch_Char
("E");
274 Write_Line
("Dynamic elaboration checking mode enabled");
276 -- Line for -gnatf switch
278 Write_Switch_Char
("f");
279 Write_Line
("Full errors. Verbose details, all undefined references");
281 -- Line for -gnatF switch
283 Write_Switch_Char
("F");
284 Write_Line
("Force all import/export external names to all uppercase");
286 -- Line for -gnatg switch
288 Write_Switch_Char
("g");
289 Write_Line
("GNAT implementation mode (used for compiling GNAT units)");
291 -- Lines for -gnatG switch
293 Write_Switch_Char
("G");
294 Write_Line
("Output generated expanded code (max line length = 72)");
295 Write_Switch_Char
("Gnn");
296 Write_Line
("Output generated expanded code (max line length = nn)");
298 -- Line for -gnath switch
300 Write_Switch_Char
("h");
301 Write_Line
("Output this usage (help) information");
303 -- Line for -gnati switch
305 Write_Switch_Char
("i?");
306 Write_Line
("Identifier char set (?=1/2/3/4/5/8/9/p/f/n/w)");
308 -- Line for -gnatI switch
310 Write_Switch_Char
("I");
311 Write_Line
("Ignore all representation clauses");
313 -- Line for -gnatj switch
315 Write_Switch_Char
("jnn");
316 Write_Line
("Format error and warning messages to fit nn character lines");
318 -- Line for -gnatk switch
320 Write_Switch_Char
("k");
321 Write_Line
("Limit file names to nn characters (k = krunch)");
323 -- Lines for -gnatl switch
325 Write_Switch_Char
("l");
326 Write_Line
("Output full source listing with embedded error messages");
327 Write_Switch_Char
("l=f");
328 Write_Line
("Output full source listing to specified file");
330 -- Line for -gnatL switch
332 Write_Switch_Char
("L");
333 Write_Line
("List corresponding source text in -gnatG or -gnatD output");
335 -- Line for -gnatm switch
337 Write_Switch_Char
("mnn");
338 Write_Line
("Limit number of detected errors/warnings to nn (1-999999)");
340 -- Line for -gnatn switch
342 Write_Switch_Char
("n[?]");
343 Write_Line
("Enable pragma Inline (both within and across units, ?=1/2)");
345 -- Line for -gnato switch
347 Write_Switch_Char
("o");
348 Write_Line
("Enable overflow checking mode to CHECKED (off by default)");
350 -- Lines for -gnato? switches
352 Write_Switch_Char
("o?");
354 ("Enable overflow checks in STRICT/MINIMIZED/ELIMINATED (1/2/3) mode ");
355 Write_Switch_Char
("o??");
357 ("Set mode for general/assertion expressions separately");
359 -- No line for -gnatO : internal switch
361 -- Line for -gnatp switch
363 Write_Switch_Char
("p");
364 Write_Line
("Suppress all checks");
366 -- Line for -gnatP switch
368 Write_Switch_Char
("P");
369 Write_Line
("Generate periodic calls to System.Polling.Poll");
371 -- Line for -gnatq switch
373 Write_Switch_Char
("q");
374 Write_Line
("Don't quit, try semantics, even if parse errors");
376 -- Line for -gnatQ switch
378 Write_Switch_Char
("Q");
379 Write_Line
("Don't quit, write ali/tree file even if compile errors");
381 -- Line for -gnatr switch
383 Write_Switch_Char
("r");
384 Write_Line
("Treat pragma Restrictions as Restriction_Warnings");
386 -- Lines for -gnatR switch
388 Write_Switch_Char
("R?");
390 ("List rep info (?=0/1/2/3/m for none/types/all/variable/mechanisms)");
391 Write_Switch_Char
("R?s");
392 Write_Line
("List rep info to file.rep instead of standard output");
394 -- Line for -gnats switch
396 Write_Switch_Char
("s");
397 Write_Line
("Syntax check only");
399 -- Line for -gnatS switch
401 Write_Switch_Char
("S");
402 Write_Line
("Print listing of package Standard");
404 -- Line for -gnatt switch
406 Write_Switch_Char
("t");
407 Write_Line
("Tree output file to be generated");
409 -- Line for -gnatTnn switch
411 Write_Switch_Char
("Tnn");
412 Write_Line
("All compiler tables start at nn times usual starting size");
414 -- Line for -gnatu switch
416 Write_Switch_Char
("u");
417 Write_Line
("List units for this compilation");
419 -- Line for -gnatU switch
421 Write_Switch_Char
("U");
422 Write_Line
("Enable unique tag for error messages");
424 -- Line for -gnatv switch
426 Write_Switch_Char
("v");
427 Write_Line
("Verbose mode. Full error output with source lines to stdout");
429 -- Lines for -gnatV switch
431 Write_Switch_Char
("Vxx");
433 ("Enable selected validity checking mode, xx = list of parameters:");
434 Write_Line
(" a turn on all validity checking options");
435 Write_Line
(" c turn on checking for copies");
436 Write_Line
(" C turn off checking for copies");
437 Write_Line
(" d turn on default (RM) checking");
438 Write_Line
(" D turn off default (RM) checking");
439 Write_Line
(" e turn on checking for elementary components");
440 Write_Line
(" E turn off checking for elementary components");
441 Write_Line
(" f turn on checking for floating-point");
442 Write_Line
(" F turn off checking for floating-point");
443 Write_Line
(" i turn on checking for in params");
444 Write_Line
(" I turn off checking for in params");
445 Write_Line
(" m turn on checking for in out params");
446 Write_Line
(" M turn off checking for in out params");
447 Write_Line
(" o turn on checking for operators/attributes");
448 Write_Line
(" O turn off checking for operators/attributes");
449 Write_Line
(" p turn on checking for parameters");
450 Write_Line
(" P turn off checking for parameters");
451 Write_Line
(" r turn on checking for returns");
452 Write_Line
(" R turn off checking for returns");
453 Write_Line
(" s turn on checking for subscripts");
454 Write_Line
(" S turn off checking for subscripts");
455 Write_Line
(" t turn on checking for tests");
456 Write_Line
(" T turn off checking for tests");
457 Write_Line
(" n turn off all validity checks (including RM)");
459 -- Lines for -gnatw switch
461 Write_Switch_Char
("wxx");
462 Write_Line
("Enable selected warning modes, xx = list of parameters:");
463 Write_Line
(" * indicates default setting");
464 Write_Line
(" + indicates warning flag included in -gnatwa");
465 Write_Line
(" a turn on all info/warnings marked below with +");
466 Write_Line
(" A turn off all optional info/warnings");
467 Write_Line
(" .a*+ turn on warnings for failing assertion");
468 Write_Line
(" .A turn off warnings for failing assertion");
469 Write_Line
(" b+ turn on warnings for bad fixed value " &
470 "(not multiple of small)");
471 Write_Line
(" B* turn off warnings for bad fixed value " &
472 "(not multiple of small)");
473 Write_Line
(" .b*+ turn on warnings for biased representation");
474 Write_Line
(" .B turn off warnings for biased representation");
475 Write_Line
(" c+ turn on warnings for constant conditional");
476 Write_Line
(" C* turn off warnings for constant conditional");
477 Write_Line
(" .c+ turn on warnings for unrepped components");
478 Write_Line
(" .C* turn off warnings for unrepped components");
479 Write_Line
(" d turn on warnings for implicit dereference");
480 Write_Line
(" D* turn off warnings for implicit dereference");
482 -- Switches -gnatw.d/w.D not available on VMS
484 if not OpenVMS_On_Target
then
486 (" .d turn on tagging of warnings with -gnatw switch");
488 (" .D* turn off tagging of warnings with -gnatw switch");
491 Write_Line
(" e treat all warnings (but not info) as errors");
492 Write_Line
(" .e turn on every optional info/warning " &
494 Write_Line
(" f+ turn on warnings for unreferenced formal");
495 Write_Line
(" F* turn off warnings for unreferenced formal");
496 Write_Line
(" g*+ turn on warnings for unrecognized pragma");
497 Write_Line
(" G turn off warnings for unrecognized pragma");
498 Write_Line
(" h turn on warnings for hiding declarations");
499 Write_Line
(" H* turn off warnings for hiding declarations");
500 Write_Line
(" .h turn on warnings for holes in records");
501 Write_Line
(" .H* turn off warnings for holes in records");
502 Write_Line
(" i*+ turn on warnings for implementation unit");
503 Write_Line
(" I turn off warnings for implementation unit");
504 Write_Line
(" .i*+ turn on warnings for overlapping actuals");
505 Write_Line
(" .I turn off warnings for overlapping actuals");
506 Write_Line
(" j+ turn on warnings for obsolescent " &
507 "(annex J) feature");
508 Write_Line
(" J* turn off warnings for obsolescent " &
509 "(annex J) feature");
510 Write_Line
(" k+ turn on warnings on constant variable");
511 Write_Line
(" K* turn off warnings on constant variable");
512 Write_Line
(" .k turn on warnings for standard redefinition");
513 Write_Line
(" .K* turn off warnings for standard redefinition");
514 Write_Line
(" l turn on warnings for missing " &
515 "elaboration pragma");
516 Write_Line
(" L* turn off warnings for missing " &
517 "elaboration pragma");
518 Write_Line
(" .l turn on info messages for inherited aspects");
519 Write_Line
(" .L* turn off info messages for inherited aspects");
520 Write_Line
(" m+ turn on warnings for variable assigned " &
522 Write_Line
(" M* turn off warnings for variable assigned " &
524 Write_Line
(" .m* turn on warnings for suspicious modulus value");
525 Write_Line
(" .M turn off warnings for suspicious modulus value");
526 Write_Line
(" n* normal warning mode (cancels -gnatws/-gnatwe)");
527 Write_Line
(" .n turn on info messages for atomic " &
529 Write_Line
(" .N* turn off info messages for atomic " &
531 Write_Line
(" o* turn on warnings for address clause overlay");
532 Write_Line
(" O turn off warnings for address clause overlay");
533 Write_Line
(" .o turn on warnings for out parameters assigned " &
535 Write_Line
(" .O* turn off warnings for out parameters assigned " &
537 Write_Line
(" p+ turn on warnings for ineffective pragma " &
538 "Inline in frontend");
539 Write_Line
(" P* turn off warnings for ineffective pragma " &
540 "Inline in frontend");
541 Write_Line
(" .p+ turn on warnings for suspicious parameter " &
543 Write_Line
(" .P* turn off warnings for suspicious parameter " &
545 Write_Line
(" q*+ turn on warnings for questionable " &
546 "missing parenthesis");
547 Write_Line
(" Q turn off warnings for questionable " &
548 "missing parenthesis");
549 Write_Line
(" r+ turn on warnings for redundant construct");
550 Write_Line
(" R* turn off warnings for redundant construct");
551 Write_Line
(" .r+ turn on warnings for object renaming function");
552 Write_Line
(" .R* turn off warnings for object renaming function");
553 Write_Line
(" s suppress all info/warnings");
554 Write_Line
(" .s turn on warnings for overridden size clause");
555 Write_Line
(" .S* turn off warnings for overridden size clause");
556 Write_Line
(" t turn on warnings for tracking deleted code");
557 Write_Line
(" T* turn off warnings for tracking deleted code");
558 Write_Line
(" .t*+ turn on warnings for suspicious contract");
559 Write_Line
(" .T turn off warnings for suspicious contract");
560 Write_Line
(" u+ turn on warnings for unused entity");
561 Write_Line
(" U* turn off warnings for unused entity");
562 Write_Line
(" .u turn on warnings for unordered enumeration");
563 Write_Line
(" .U* turn off warnings for unordered enumeration");
564 Write_Line
(" v*+ turn on warnings for unassigned variable");
565 Write_Line
(" V turn off warnings for unassigned variable");
566 Write_Line
(" .v*+ turn on info messages for reverse bit order");
567 Write_Line
(" .V turn off info messages for reverse bit order");
568 Write_Line
(" w*+ turn on warnings for wrong low bound assumption");
569 Write_Line
(" W turn off warnings for wrong low bound " &
571 Write_Line
(" .w turn on warnings on pragma Warnings Off");
572 Write_Line
(" .W* turn off warnings on pragma Warnings Off");
573 Write_Line
(" x*+ turn on warnings for export/import");
574 Write_Line
(" X turn off warnings for export/import");
575 Write_Line
(" .x+ turn on warnings for non-local exception");
576 Write_Line
(" .X* turn off warnings for non-local exception");
577 Write_Line
(" y*+ turn on warnings for Ada compatibility issues");
578 Write_Line
(" Y turn off warnings for Ada compatibility issues");
579 Write_Line
(" .y turn on info messages for why pkg body needed");
580 Write_Line
(" .Y* turn off info messages for why pkg body needed");
581 Write_Line
(" z*+ turn on warnings for suspicious " &
582 "unchecked conversion");
583 Write_Line
(" Z turn off warnings for suspicious " &
584 "unchecked conversion");
586 -- Line for -gnatW switch
588 Write_Switch_Char
("W?");
589 Write_Str
("Wide character encoding method (?=");
591 for J
in WC_Encoding_Method
loop
592 Write_Char
(WC_Encoding_Letters
(J
));
594 if J
= WC_Encoding_Method
'Last then
603 -- Line for -gnatx switch
605 Write_Switch_Char
("x");
606 Write_Line
("Suppress output of cross-reference information");
608 -- Line for -gnatX switch
610 Write_Switch_Char
("X");
611 Write_Line
("Language extensions permitted");
613 -- Lines for -gnaty switch
615 Write_Switch_Char
("y");
616 Write_Line
("Enable default style checks (same as -gnaty3abcefhiklmnprst)");
617 Write_Switch_Char
("yxx");
618 Write_Line
("Enable selected style checks xx = list of parameters:");
619 Write_Line
(" 1-9 check indentation");
620 Write_Line
(" a check attribute casing");
621 Write_Line
(" A check array attribute indexes");
622 Write_Line
(" b check no blanks at end of lines");
623 Write_Line
(" B check no use of AND/OR for boolean expressions");
624 Write_Line
(" c check comment format (two spaces)");
625 Write_Line
(" C check comment format (one space)");
626 Write_Line
(" d check no DOS line terminators");
627 Write_Line
(" e check end/exit labels present");
628 Write_Line
(" f check no form feeds/vertical tabs in source");
629 Write_Line
(" g check standard GNAT style rules");
630 Write_Line
(" h check no horizontal tabs in source");
631 Write_Line
(" i check if-then layout");
632 Write_Line
(" I check mode in");
633 Write_Line
(" k check casing rules for keywords");
634 Write_Line
(" l check reference manual layout");
635 Write_Line
(" Lnn check max nest level < nn ");
636 Write_Line
(" m check line length <= 79 characters");
637 Write_Line
(" Mnn check line length <= nn characters");
638 Write_Line
(" n check casing of package Standard identifiers");
639 Write_Line
(" N turn off all checks");
640 Write_Line
(" o check subprogram bodies in alphabetical order");
641 Write_Line
(" O check overriding indicators");
642 Write_Line
(" p check pragma casing");
643 Write_Line
(" r check casing for identifier references");
644 Write_Line
(" s check separate subprogram specs present");
645 Write_Line
(" S check separate lines after THEN or ELSE");
646 Write_Line
(" t check token separation rules");
647 Write_Line
(" u check no unnecessary blank lines");
648 Write_Line
(" x check extra parentheses around conditionals");
649 Write_Line
(" y turn on default style checks");
650 Write_Line
(" - subtract (turn off) subsequent checks");
651 Write_Line
(" + add (turn on) subsequent checks");
653 -- Lines for -gnatyN switch
655 Write_Switch_Char
("yN");
656 Write_Line
("Cancel all previously set style checks");
658 -- Lines for -gnatzc switch
660 Write_Switch_Char
("zc");
661 Write_Line
("Distribution stub generation for caller stubs");
663 -- Lines for -gnatzr switch
665 Write_Switch_Char
("zr");
666 Write_Line
("Distribution stub generation for receiver stubs");
668 -- Line for -gnat83 switch
670 Write_Switch_Char
("83");
671 Write_Line
("Ada 83 mode");
673 -- Line for -gnat95 switch
675 Write_Switch_Char
("95");
677 if Ada_Version_Default
= Ada_95
then
678 Write_Line
("Ada 95 mode (default)");
680 Write_Line
("Ada 95 mode");
683 -- Line for -gnat2005 switch
685 Write_Switch_Char
("2005");
687 if Ada_Version_Default
= Ada_2005
then
688 Write_Line
("Ada 2005 mode (default)");
690 Write_Line
("Ada 2005 mode");
693 -- Line for -gnat2012 switch
695 Write_Switch_Char
("2012");
697 if Ada_Version_Default
= Ada_2012
then
698 Write_Line
("Ada 2012 mode (default)");
700 Write_Line
("Ada 2012 mode");
703 -- Line for -gnat-p switch
705 Write_Switch_Char
("-p");
706 Write_Line
("Cancel effect of previous -gnatp switch");