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415dddc8
RK		 1------------------------------------------------------------------------------
2-- --
3-- GNAT COMPILER COMPONENTS --
4-- --
5-- U S A G E --
6-- --
7-- B o d y --
415dddc8 8-- --
0eed45bb 9-- Copyright (C) 1992-2010, Free Software Foundation, Inc. --
415dddc8
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- --
b5c84c3c 13-- ware Foundation; either version 3, or (at your option) any later ver- --
415dddc8
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 --
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 --
b5c84c3c
RD		 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. --
415dddc8
RK		 20-- --
21-- GNAT was originally developed by the GNAT team at New York University. --
71ff80dc 22-- Extensive contributions were provided by Ada Core Technologies Inc. --
415dddc8
RK		 23-- --
24------------------------------------------------------------------------------
25
1a5f40e1
VC		 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.
28
8f7770f9
RD		 29with Targparm; use Targparm;
30with Namet; use Namet;
31with Opt; use Opt;
32with Osint; use Osint;
33with Output; use Output;
34
415dddc8
RK		 35with System.WCh_Con; use System.WCh_Con;
36
37procedure Usage is
38
39 procedure Write_Switch_Char (Sw : String; Prefix : String := "gnat");
07fc65c4 40 -- Output two spaces followed by the switch character minus followed
b8dfbe1e
AC		 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.
415dddc8 45
8f7770f9
RD		 46 -----------------------
47 -- Write_Switch_Char --
48 -----------------------
49
415dddc8
RK		 50 procedure Write_Switch_Char (Sw : String; Prefix : String := "gnat") is
51 begin
07fc65c4 52 Write_Str (" -");
415dddc8
RK		 53 Write_Str (Prefix);
54 Write_Str (Sw);
55
56 for J in 1 .. 12 - 3 - Prefix'Length - Sw'Length loop
57 Write_Char (' ');
58 end loop;
59 end Write_Switch_Char;
60
61-- Start of processing for Usage
62
63begin
64 Find_Program_Name;
65
66 -- For gnatmake, we are appending this information to the end of
67 -- the normal gnatmake output, so generate appropriate header
68
69 if Name_Len >= 8
70 and then (Name_Buffer (Name_Len - 7 .. Name_Len) = "gnatmake"
71 or else
72 Name_Buffer (Name_Len - 7 .. Name_Len) = "GNATMAKE")
73 then
74 Write_Eol;
75 Write_Line ("Compiler switches (passed to the compiler by gnatmake):");
76
77 else
78 -- Usage line
79
80 Write_Str ("Usage: ");
81 Write_Program_Name;
82 Write_Char (' ');
83 Write_Str ("switches sfile");
84 Write_Eol;
85 Write_Eol;
86
87 -- Line for sfile
88
89 Write_Line (" sfile Source file name");
90 end if;
91
92 Write_Eol;
93
056b0f6f 94 -- Common GCC switches not available for JVM, .NET, and AAMP targets
415dddc8 95
056b0f6f 96 if VM_Target = No_VM and then not AAMP_On_Target then
415dddc8
RK		 97 Write_Switch_Char ("fstack-check ", "");
98 Write_Line ("Generate stack checking code");
99
100 Write_Switch_Char ("fno-inline ", "");
101 Write_Line ("Inhibit all inlining (makes executable smaller)");
9549767b
AC		 102
103 Write_Switch_Char ("fpreserve-control-flow ", "");
104 Write_Line ("Preserve control flow for coverage analysis");
415dddc8
RK		 105 end if;
106
107 -- Common switches available to both GCC and JGNAT
108
109 Write_Switch_Char ("g ", "");
110 Write_Line ("Generate debugging information");
111
112 Write_Switch_Char ("Idir ", "");
113 Write_Line ("Specify source files search path");
114
115 Write_Switch_Char ("I- ", "");
116 Write_Line ("Do not look for sources in current directory");
117
118 Write_Switch_Char ("O[0123] ", "");
119 Write_Line ("Control the optimization level");
120
121 Write_Eol;
122
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!
127
128 -- Line for -gnata switch
129
130 Write_Switch_Char ("a");
131 Write_Line ("Assertions enabled. Pragma Assert/Debug to be activated");
132
133 -- Line for -gnatA switch
134
135 Write_Switch_Char ("A");
136 Write_Line ("Avoid processing gnat.adc, if present file will be ignored");
137
138 -- Line for -gnatb switch
139
140 Write_Switch_Char ("b");
141 Write_Line ("Generate brief messages to stderr even if verbose mode set");
142
4351c21b
AC		 143 -- Line for -gnatB switch
144
145 Write_Switch_Char ("B");
146 Write_Line ("Assume no bad (invalid) values except in 'Valid attribute");
147
415dddc8
RK		 148 -- Line for -gnatc switch
149
150 Write_Switch_Char ("c");
151 Write_Line ("Check syntax and semantics only (no code generation)");
152
76efd572
AC		 153 -- Line for -gnatC switch
154
155 Write_Switch_Char ("C");
156 Write_Line ("Generate CodePeer information (no code generation)");
157
415dddc8
RK		 158 -- Line for -gnatd switch
159
160 Write_Switch_Char ("d?");
fbf5a39b 161 Write_Line ("Compiler debug option ? ([.]a-z,A-Z,0-9), see debug.adb");
415dddc8
RK		 162
163 -- Line for -gnatD switch
164
165 Write_Switch_Char ("D");
dcd8728b
RD		 166 Write_Line ("Debug expanded generated code (max line length = 72)");
167 Write_Switch_Char ("Dnn");
a2dc5812 168 Write_Line ("Debug expanded generated code (max line length = nn)");
415dddc8
RK		 169
170 -- Line for -gnatec switch
171
fbf5a39b
AC		 172 Write_Switch_Char ("ec=?");
173 Write_Line ("Specify configuration pragmas file, e.g. -gnatec=/x/f.adc");
174
175 -- Line for -gnateD switch
176
177 Write_Switch_Char ("eD?");
178 Write_Line ("Define or redefine preprocessing symbol, e.g. -gnateDsym=val");
179
180 -- Line for -gnatef switch
181
182 Write_Switch_Char ("ef");
183 Write_Line ("Full source path in brief error messages");
415dddc8 184
f2170041
AC		 185 -- Line for -gnateG switch
186
187 Write_Switch_Char ("eG");
188 Write_Line ("Generate preprocessed source");
189
6b6fcd3e
AC		 190 -- Line for -gnateI switch
191
aa635439 192 Write_Switch_Char ("eInn");
6b6fcd3e
AC		 193 Write_Line ("Index in multi-unit source, e.g. -gnateI2");
194
6510f4c9
GB		 195 -- Line for -gnatem switch
196
fbf5a39b
AC		 197 Write_Switch_Char ("em=?");
198 Write_Line ("Specify mapping file, e.g. -gnatem=mapping");
199
200 -- Line for -gnatep switch
201
202 Write_Switch_Char ("ep=?");
203 Write_Line ("Specify preprocessing data file, e.g. -gnatep=prep.data");
6510f4c9 204
6f12117a
RD		 205 -- Line for -gnateS switch
206
207 Write_Switch_Char ("eS");
208 Write_Line ("Generate SCO (Source Coverage Obligation) information");
209
415dddc8
RK		 210 -- Line for -gnatE switch
211
212 Write_Switch_Char ("E");
213 Write_Line ("Dynamic elaboration checking mode enabled");
214
215 -- Line for -gnatf switch
216
217 Write_Switch_Char ("f");
218 Write_Line ("Full errors. Verbose details, all undefined references");
219
220 -- Line for -gnatF switch
221
222 Write_Switch_Char ("F");
223 Write_Line ("Force all import/export external names to all uppercase");
224
225 -- Line for -gnatg switch
226
227 Write_Switch_Char ("g");
228 Write_Line ("GNAT implementation mode (used for compiling GNAT units)");
229
dcd8728b 230 -- Lines for -gnatG switch
415dddc8
RK		 231
232 Write_Switch_Char ("G");
dcd8728b
RD		 233 Write_Line ("Output generated expanded code (max line length = 72)");
234 Write_Switch_Char ("Gnn");
235 Write_Line ("Output generated expanded code (max line length = nn)");
415dddc8
RK		 236
237 -- Line for -gnath switch
238
239 Write_Switch_Char ("h");
240 Write_Line ("Output this usage (help) information");
241
242 -- Line for -gnati switch
243
244 Write_Switch_Char ("i?");
07fc65c4 245 Write_Line ("Identifier char set (?=1/2/3/4/5/8/9/p/f/n/w)");
415dddc8 246
c690a2ec
RD		 247 -- Line for -gnatI switch
248
249 Write_Switch_Char ("I");
250 Write_Line ("Ignore all representation clauses");
251
ba1cbfb9
RD		 252 -- Line for -gnatj switch
253
254 Write_Switch_Char ("jnn");
255 Write_Line ("Format error and warning messages to fit nn character lines");
256
415dddc8
RK		 257 -- Line for -gnatk switch
258
259 Write_Switch_Char ("k");
aa635439 260 Write_Line ("Limit file names to nn characters (k = krunch)");
415dddc8 261
ba1cbfb9 262 -- Lines for -gnatl switch
415dddc8
RK		 263
264 Write_Switch_Char ("l");
265 Write_Line ("Output full source listing with embedded error messages");
ba1cbfb9
RD		 266 Write_Switch_Char ("l=f");
267 Write_Line ("Output full source listing to specified file");
268
269 -- Line for -gnatL switch
270
271 Write_Switch_Char ("L");
272 Write_Line ("List corresponding source text in -gnatG or -gnatD output");
415dddc8 273
415dddc8
RK		 274 -- Line for -gnatm switch
275
aa635439 276 Write_Switch_Char ("mnn");
923e6ff3 277 Write_Line ("Limit number of detected errors/warnings to nn (1-999999)");
415dddc8
RK		 278
279 -- Line for -gnatn switch
280
281 Write_Switch_Char ("n");
282 Write_Line ("Inlining of subprograms (apply pragma Inline across units)");
283
284 -- Line for -gnatN switch
285
286 Write_Switch_Char ("N");
19f0526a 287 Write_Line ("Full (frontend) inlining of subprograms");
415dddc8
RK		 288
289 -- Line for -gnato switch
290
291 Write_Switch_Char ("o");
292 Write_Line ("Enable overflow checking (off by default)");
293
294 -- Line for -gnatO switch
295
296 Write_Switch_Char ("O nm ");
297 Write_Line ("Set name of output ali file (internal switch)");
298
299 -- Line for -gnatp switch
300
301 Write_Switch_Char ("p");
302 Write_Line ("Suppress all checks");
303
304 -- Line for -gnatP switch
305
306 Write_Switch_Char ("P");
307 Write_Line ("Generate periodic calls to System.Polling.Poll");
308
309 -- Line for -gnatq switch
310
311 Write_Switch_Char ("q");
312 Write_Line ("Don't quit, try semantics, even if parse errors");
313
314 -- Line for -gnatQ switch
315
316 Write_Switch_Char ("Q");
317 Write_Line ("Don't quit, write ali/tree file even if compile errors");
318
23e6615e
RD		 319 -- Line for -gnatr switch
320
321 Write_Switch_Char ("r");
322 Write_Line ("Treat pragma Restrictions as Restriction_Warnings");
323
aa720a54 324 -- Lines for -gnatR switch
415dddc8
RK		 325
326 Write_Switch_Char ("R?");
aa720a54
AC		 327 Write_Line ("List rep info (?=0/1/2/3 for none/types/all/variable)");
328 Write_Switch_Char ("R?s");
329 Write_Line ("List rep info to file.rep instead of standard output");
415dddc8
RK		 330
331 -- Lines for -gnats switch
332
333 Write_Switch_Char ("s");
334 Write_Line ("Syntax check only");
335
9596236a
AC		 336 -- Lines for -gnatS switch
337
338 Write_Switch_Char ("S");
339 Write_Line ("Print listing of package Standard");
340
415dddc8
RK		 341 -- Lines for -gnatt switch
342
343 Write_Switch_Char ("t");
344 Write_Line ("Tree output file to be generated");
345
346 -- Line for -gnatT switch
347
aa635439
AC		 348 Write_Switch_Char ("Tnn");
349 Write_Line ("All compiler tables start at nn times usual starting size");
415dddc8
RK		 350
351 -- Line for -gnatu switch
352
353 Write_Switch_Char ("u");
354 Write_Line ("List units for this compilation");
355
356 -- Line for -gnatU switch
357
358 Write_Switch_Char ("U");
359 Write_Line ("Enable unique tag for error messages");
360
361 -- Line for -gnatv switch
362
363 Write_Switch_Char ("v");
364 Write_Line ("Verbose mode. Full error output with source lines to stdout");
365
366 -- Line for -gnatV switch
367
9a5621d7 368 Write_Switch_Char ("Vxx");
415dddc8 369 Write_Line
9a5621d7
RD		 370 ("Enable selected validity checking mode, xx = list of parameters:");
371 Write_Line (" a turn on all validity checking options");
07fc65c4
GB		 372 Write_Line (" c turn on checking for copies");
373 Write_Line (" C turn off checking for copies");
374 Write_Line (" d turn on default (RM) checking");
375 Write_Line (" D turn off default (RM) checking");
ba1cbfb9
RD		 376 Write_Line (" e turn on checking for elementary components");
377 Write_Line (" E turn off checking for elementary components");
07fc65c4
GB		 378 Write_Line (" f turn on checking for floating-point");
379 Write_Line (" F turn off checking for floating-point");
380 Write_Line (" i turn on checking for in params");
381 Write_Line (" I turn off checking for in params");
382 Write_Line (" m turn on checking for in out params");
383 Write_Line (" M turn off checking for in out params");
384 Write_Line (" o turn on checking for operators/attributes");
385 Write_Line (" O turn off checking for operators/attributes");
fbf5a39b
AC		 386 Write_Line (" p turn on checking for parameters");
387 Write_Line (" P turn off checking for parameters");
07fc65c4
GB		 388 Write_Line (" r turn on checking for returns");
389 Write_Line (" R turn off checking for returns");
390 Write_Line (" s turn on checking for subscripts");
391 Write_Line (" S turn off checking for subscripts");
392 Write_Line (" t turn on checking for tests");
393 Write_Line (" T turn off checking for tests");
9a5621d7 394 Write_Line (" n turn off all validity checks (including RM)");
415dddc8
RK		 395
396 -- Lines for -gnatw switch
397
398 Write_Switch_Char ("wxx");
399 Write_Line ("Enable selected warning modes, xx = list of parameters:");
51bf9bdf 400 Write_Line (" a turn on all info/warnings marked below with +");
3acdda2d 401 Write_Line (" A turn off all optional info/warnings");
51bf9bdf 402 Write_Line (" .a*+ turn on warnings for failing assertion");
4ae23b62 403 Write_Line (" .A turn off warnings for failing assertion");
51bf9bdf 404 Write_Line (" b+ turn on warnings for bad fixed value " &
debe0ab6
RD		 405 "(not multiple of small)");
406 Write_Line (" B* turn off warnings for bad fixed value " &
407 "(not multiple of small)");
51bf9bdf 408 Write_Line (" .b*+ turn on warnings for biased representation");
4ae23b62 409 Write_Line (" .B turn off warnings for biased representation");
51bf9bdf 410 Write_Line (" c+ turn on warnings for constant conditional");
fbf5a39b 411 Write_Line (" C* turn off warnings for constant conditional");
51bf9bdf 412 Write_Line (" .c+ turn on warnings for unrepped components");
8f7770f9 413 Write_Line (" .C* turn off warnings for unrepped components");
fbf5a39b
AC		 414 Write_Line (" d turn on warnings for implicit dereference");
415 Write_Line (" D* turn off warnings for implicit dereference");
3acdda2d
AC		 416 Write_Line (" e treat all warnings (but not info) as errors");
417 Write_Line (" .e turn on every optional info/warning " &
418 "(no exceptions)");
51bf9bdf 419 Write_Line (" f+ turn on warnings for unreferenced formal");
fbf5a39b 420 Write_Line (" F* turn off warnings for unreferenced formal");
51bf9bdf 421 Write_Line (" g*+ turn on warnings for unrecognized pragma");
fbf5a39b 422 Write_Line (" G turn off warnings for unrecognized pragma");
4ae23b62 423 Write_Line (" h turn on warnings for hiding variable");
fbf5a39b 424 Write_Line (" H* turn off warnings for hiding variable");
9a1bc6d5
AC		 425 Write_Line (" .h turn on warnings for holes in records");
426 Write_Line (" .H* turn off warnings for holes in records");
51bf9bdf 427 Write_Line (" i*+ turn on warnings for implementation unit");
fbf5a39b 428 Write_Line (" I turn off warnings for implementation unit");
4b2d2c13
AC		 429 Write_Line (" .i turn on warnings for overlapping actuals");
430 Write_Line (" .I* turn off warnings for overlapping actuals");
51bf9bdf 431 Write_Line (" j+ turn on warnings for obsolescent " &
fbf5a39b
AC		 432 "(annex J) feature");
433 Write_Line (" J* turn off warnings for obsolescent " &
434 "(annex J) feature");
51bf9bdf 435 Write_Line (" k+ turn on warnings on constant variable");
fbf5a39b
AC		 436 Write_Line (" K* turn off warnings on constant variable");
437 Write_Line (" l turn on warnings for missing " &
438 "elaboration pragma");
439 Write_Line (" L* turn off warnings for missing " &
440 "elaboration pragma");
51bf9bdf 441 Write_Line (" m+ turn on warnings for variable assigned " &
fbf5a39b
AC		 442 "but not read");
443 Write_Line (" M* turn off warnings for variable assigned " &
444 "but not read");
79afa047
AC		 445 Write_Line (" .m* turn on warnings for suspicious modulus value");
446 Write_Line (" .M turn off warnings for suspicious modulus value");
fbf5a39b
AC		 447 Write_Line (" n* normal warning mode (cancels -gnatws/-gnatwe)");
448 Write_Line (" o* turn on warnings for address clause overlay");
449 Write_Line (" O turn off warnings for address clause overlay");
36fcf362 450 Write_Line (" .o turn on warnings for out parameters assigned " &
67ce0d7e 451 "but not read");
36fcf362 452 Write_Line (" .O* turn off warnings for out parameters assigned " &
67ce0d7e 453 "but not read");
51bf9bdf 454 Write_Line (" p+ turn on warnings for ineffective pragma " &
1a5f40e1 455 "Inline in frontend");
8f7770f9 456 Write_Line (" P* turn off warnings for ineffective pragma " &
1a5f40e1 457 "Inline in frontend");
51bf9bdf 458 Write_Line (" .p+ turn on warnings for suspicious parameter " &
1a5f40e1
VC		 459 "order");
460 Write_Line (" .P* turn off warnings for suspicious parameter " &
461 "order");
51bf9bdf 462 Write_Line (" q*+ turn on warnings for questionable " &
4ae23b62 463 "missing parenthesis");
a9a5b8ac 464 Write_Line (" Q turn off warnings for questionable " &
4ae23b62 465 "missing parenthesis");
51bf9bdf 466 Write_Line (" r+ turn on warnings for redundant construct");
fbf5a39b 467 Write_Line (" R* turn off warnings for redundant construct");
51bf9bdf 468 Write_Line (" .r+ turn on warnings for object renaming function");
8f7770f9 469 Write_Line (" .R* turn off warnings for object renaming function");
3acdda2d 470 Write_Line (" s suppress all info/warnings");
b3f48fd4
AC		 471 Write_Line (" .s turn on warnings for overridden size clause");
472 Write_Line (" .S* turn off warnings for overridden size clause");
ba1cbfb9
RD		 473 Write_Line (" t turn on warnings for tracking deleted code");
474 Write_Line (" T* turn off warnings for tracking deleted code");
51bf9bdf 475 Write_Line (" u+ turn on warnings for unused entity");
fbf5a39b 476 Write_Line (" U* turn off warnings for unused entity");
bd29d519
AC		 477 Write_Line (" .u turn on warnings for unordered enumeration");
478 Write_Line (" .U* turn off warnings for unordered enumeration");
51bf9bdf 479 Write_Line (" v*+ turn on warnings for unassigned variable");
fbf5a39b 480 Write_Line (" V turn off warnings for unassigned variable");
51bf9bdf 481 Write_Line (" .v*+ turn on info messages for reverse bit order");
3acdda2d 482 Write_Line (" .V turn off info messages for reverse bit order");
51bf9bdf 483 Write_Line (" w*+ turn on warnings for wrong low bound assumption");
ba1cbfb9
RD		 484 Write_Line (" W turn off warnings for wrong low bound " &
485 "assumption");
da508766 486 Write_Line (" .w turn on warnings on pragma Warnings Off");
fd22cd21 487 Write_Line (" .W* turn off warnings on pragma Warnings Off");
51bf9bdf 488 Write_Line (" x*+ turn on warnings for export/import");
f81e6250 489 Write_Line (" X turn off warnings for export/import");
51bf9bdf 490 Write_Line (" .x+ turn on warnings for non-local exception");
4ae23b62 491 Write_Line (" .X* turn off warnings for non-local exception");
51bf9bdf 492 Write_Line (" y*+ turn on warnings for Ada 2005 incompatibility");
f81e6250 493 Write_Line (" Y turn off warnings for Ada 2005 incompatibility");
51bf9bdf 494 Write_Line (" z*+ turn on warnings for suspicious " &
382d35e0
RD		 495 "unchecked conversion");
496 Write_Line (" Z turn off warnings for suspicious " &
497 "unchecked conversion");
415dddc8 498 Write_Line (" * indicates default in above list");
51bf9bdf 499 Write_Line (" + indicates warning flag included in -gnatwa");
415dddc8
RK		 500
501 -- Line for -gnatW switch
502
503 Write_Switch_Char ("W");
504 Write_Str ("Wide character encoding method (");
505
506 for J in WC_Encoding_Method loop
507 Write_Char (WC_Encoding_Letters (J));
508
509 if J = WC_Encoding_Method'Last then
510 Write_Char (')');
511 else
512 Write_Char ('/');
513 end if;
514 end loop;
515
516 Write_Eol;
517
518 -- Line for -gnatx switch
519
520 Write_Switch_Char ("x");
521 Write_Line ("Suppress output of cross-reference information");
522
523 -- Line for -gnatX switch
524
525 Write_Switch_Char ("X");
526 Write_Line ("Language extensions permitted");
527
528 -- Lines for -gnaty switch
529
530 Write_Switch_Char ("y");
448f2610 531 Write_Line ("Enable default style checks (same as -gnaty3abcefhiklmnprst)");
415dddc8
RK		 532 Write_Switch_Char ("yxx");
533 Write_Line ("Enable selected style checks xx = list of parameters:");
534 Write_Line (" 1-9 check indentation");
535 Write_Line (" a check attribute casing");
a9a5b8ac 536 Write_Line (" A check array attribute indexes");
415dddc8 537 Write_Line (" b check no blanks at end of lines");
a36c1c3e 538 Write_Line (" B check no use of AND/OR for boolean expressions");
415dddc8 539 Write_Line (" c check comment format");
debe0ab6 540 Write_Line (" d check no DOS line terminators");
415dddc8
RK		 541 Write_Line (" e check end/exit labels present");
542 Write_Line (" f check no form feeds/vertical tabs in source");
8f7770f9 543 Write_Line (" g check standard GNAT style rules");
415dddc8
RK		 544 Write_Line (" h check no horizontal tabs in source");
545 Write_Line (" i check if-then layout");
4f73f89c 546 Write_Line (" I check mode in");
fbf5a39b 547 Write_Line (" k check casing rules for keywords");
415dddc8 548 Write_Line (" l check reference manual layout");
aa635439 549 Write_Line (" Lnn check max nest level < nn ");
415dddc8
RK		 550 Write_Line (" m check line length <= 79 characters");
551 Write_Line (" n check casing of package Standard identifiers");
c690a2ec 552 Write_Line (" Mnn check line length <= nn characters");
1a5f40e1 553 Write_Line (" N turn off all checks");
415dddc8 554 Write_Line (" o check subprogram bodies in alphabetical order");
ed57136d 555 Write_Line (" O check overriding indicators");
415dddc8 556 Write_Line (" p check pragma casing");
fbf5a39b 557 Write_Line (" r check casing for identifier references");
415dddc8 558 Write_Line (" s check separate subprogram specs present");
c690a2ec 559 Write_Line (" S check separate lines after THEN or ELSE");
415dddc8 560 Write_Line (" t check token separation rules");
f81e6250 561 Write_Line (" u check no unnecessary blank lines");
a9a5b8ac 562 Write_Line (" x check extra parentheses around conditionals");
1a5f40e1
VC		 563 Write_Line (" y turn on default style checks");
564 Write_Line (" - subtract (turn off) subsequent checks");
565 Write_Line (" + add (turn on) subsequent checks");
415dddc8 566
2e071734
AC		 567 -- Lines for -gnatyN switch
568
569 Write_Switch_Char ("yN");
570 Write_Line ("Cancel all previously set style checks");
571
c94a0b9d 572 -- Lines for -gnatzc switch
415dddc8 573
c94a0b9d
AC		 574 Write_Switch_Char ("zc");
575 Write_Line ("Distribution stub generation for caller stubs");
576
577 -- Lines for -gnatzr switch
578
579 Write_Switch_Char ("zr");
580 Write_Line ("Distribution stub generation for receiver stubs");
415dddc8 581
415dddc8
RK		 582 -- Line for -gnat83 switch
583
584 Write_Switch_Char ("83");
585 Write_Line ("Enforce Ada 83 restrictions");
586
728c3084
RD		 587 -- Line for -gnat95 switch
588
589 Write_Switch_Char ("95");
590
591 if Ada_Version_Default = Ada_95 then
592 Write_Line ("Ada 95 mode (default)");
593 else
594 Write_Line ("Enforce Ada 95 restrictions");
595 end if;
596
448f2610
AC		 597 -- Line for -gnat05 switch
598
599 Write_Switch_Char ("05");
728c3084 600
0791fbe9 601 if Ada_Version_Default = Ada_2005 then
728c3084
RD		 602 Write_Line ("Ada 2005 mode (default)");
603 else
0eed45bb
AC		 604 Write_Line ("Enforce Ada 2005 restrictions");
605 end if;
606
607 -- Line for -gnat12 switch
608
609 Write_Switch_Char ("12");
610
dbe945f1 611 if Ada_Version_Default = Ada_2012 then
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AC		 612 Write_Line ("Ada 2012 mode (default)");
613 else
614 Write_Line ("Allow Ada 2012 extensions");
728c3084 615 end if;
448f2610 616
3f165ff2
AC		 617 -- Line for -gnat-p switch
618
619 Write_Switch_Char ("-p");
620 Write_Line ("Cancel effect of previous -gnatp switch");
621
415dddc8 622end Usage;
GNU Compiler Collection
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