1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
|
; Options for the Modula-2 front end.
;
; Copyright (C) 2016-2024 Free Software Foundation, Inc.
; Contributed by Gaius Mulley <gaius.mulley@southwales.ac.uk>.
;
; This file is part of GNU Modula-2.
;
; GNU Modula-2 is free software; you can redistribute it and/or modify
; it under the terms of the GNU General Public License as published by
; the Free Software Foundation; either version 3, or (at your option)
; any later version.
;
; GNU Modula-2 is distributed in the hope that it will be useful, but
; WITHOUT ANY WARRANTY; without even the implied warranty of
; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
; General Public License for more details.
;
; You should have received a copy of the GNU General Public License
; along with GNU Modula-2; see the file COPYING. If not,
; see <https://www.gnu.org/licenses/>. *)
; See the GCC internals manual for a description of this file's format.
; There are two sections:
; 1. Options specific to Modula-2
; 2. Options shared with C or the Driver.
; Please keep any new additions for either case in the relevant section.
; Please try to keep this file in ASCII collating order.
Language
Modula-2
Wcase-enum
Modula-2
turns on case statement label compile time checking when using an expression of an enum type.
Wpedantic-param-names
Modula-2
compiler checks to force definition module procedure parameter names with their implementation module counterpart
Wpedantic-cast
Modula-2
compiler warns if a cast is being used on types of differing sizes
Wverbose-unbounded
Modula-2
inform user which parameters will be passed by reference
Wstyle
Modula-2
extra compile time semantic checking, typically tries to catch poor programming style
Wuninit-variable-checking
Modula-2
turns on compile time analysis in the first basic block of a procedure detecting access to uninitialized data.
Wuninit-variable-checking=
Modula-2 Joined
turns on compile time analysis to detect access to uninitialized variables, the checking can be specified by: known,cond,all.
fauto-init
Modula-2
automatically initializes all pointers to NIL
fbounds
Modula-2
turns on runtime subrange, array index and indirection via NIL pointer checking
fcase
Modula-2
turns on runtime checking to check whether a CASE statement requires an ELSE clause when one was not specified
fcpp
Modula-2
use cpp to preprocess the module
fcpp-end
Modula-2
passed to the preprocessor if -fcpp is used (internal switch)
fcpp-begin
Modula-2
passed to the preprocessor if -fcpp is used (internal switch)
fdebug-builtins
Modula-2
call a real function, rather than the builtin equivalent
fd
Modula-2
turn on internal debugging of the compiler (internal switch)
fdebug-function-line-numbers
Modula-2
turn on tracing of procedure line numbers (internal switch)
fdef=
Modula-2 Joined
recognise the specified suffix as a definition module filename
fdump-system-exports
Modula-2
display all inbuilt system items
fextended-opaque
Modula-2
allows opaque types to be implemented as any type (a GNU Modula-2 extension)
ffloatvalue
Modula-2
turns on runtime checking to check whether a floating point number will exceed range
fgen-module-list=
Modula-2 Joined
create a topologically sorted module list from all dependent modules used in the application
findex
Modula-2
turns on all range checking for numerical values
fiso
Modula-2
use ISO dialect of Modula-2
flibs=
Modula-2 Joined
specify the library order, the libraries may be specified by a comma separated abbreviation: log,min,pim,iso or by directory names: m2log,m2min,m2pim,m2iso.
flocation=
Modula-2 Joined
set all location values to a specific value (internal switch)
fm2-debug-trace=
Modula-2 Joined
turn on internal debug tracing for quad,token,line,all (internal switch)
fm2-g
Modula-2
generate extra nops to improve debugging, producing an instruction for every code related keyword
fm2-lower-case
Modula-2
generate error messages which render keywords in lower case
fm2-pathname=
Modula-2 Joined
specify the module mangled prefix name for all modules in the following include paths
fm2-pathnameI
Modula-2 Joined
; For internal use only: used by the driver to copy the user facing -I option
fm2-plugin
Modula-2
insert plugin to identify runtime errors at compiletime
fm2-prefix=
Modula-2 Joined
specify the module mangled prefix name
fm2-statistics
Modula-2
display statistics about the amount of source lines compiled and symbols used
fm2-strict-type
Modula-2
experimental flag to turn on the new strict type checker
fm2-whole-program
Modula-2
compile all implementation modules and program module at once
fmod=
Modula-2 Joined
recognise the specified suffix as implementation and module filenames
fnil
Modula-2
turns on runtime checking to detect accessing data through a NIL value pointer
fpim
Modula-2
use PIM [234] dialect of Modula-2
fpim2
Modula-2
use PIM 2 dialect of Modula-2
fpim3
Modula-2
use PIM 3 dialect of Modula-2
fpim4
Modula-2
use PIM 4 dialect of Modula-2
fpositive-mod-floor-div
Modula-2
force positive result from MOD and DIV result floor
fpthread
Modula-2
link against the pthread library (default on)
fq
Modula-2
internal compiler debugging information, dump the list of quadruples
frange
Modula-2
turns on all range checking for numerical values
freturn
Modula-2
turns on runtime checking for functions which finish without executing a RETURN statement
fruntime-modules=
Modula-2 Joined
specify the list of runtime modules and their initialization order
fscaffold-dynamic
Modula-2
the modules initialization order is dynamically determined by M2RTS and application dependencies
fscaffold-c
Modula-2
generate a C source scaffold for the current module being compiled
fscaffold-c++
Modula-2
generate a C++ source scaffold for the current module being compiled
fscaffold-main
Modula-2
generate the main function
fscaffold-static
Modula-2
generate static scaffold initialization and finalization for every module inside main
fshared
Modula-2
generate a shared library from the module
fsoft-check-all
Modula-2
turns on all software runtime checking (an abbreviation for -fnil -frange -findex -fwholediv -fcase -freturn -fwholevalue -ffloatvalue)
fsources
Modula-2
display the location of module source files as they are compiled
fswig
Modula-2
create a swig interface file for the module
funbounded-by-reference
Modula-2
optimize non var unbounded parameters by passing it by reference, providing it is not written to within the callee procedure.
fuse-list=
Modula-2 Joined
orders the initialization/finalializations for scaffold-static or force linking of modules if scaffold-dynamic
fversion
Modula-2
; Documented in common.opt
fwholediv
Modula-2
turns on all division and modulus by zero checking for ordinal values
fwholevalue
Modula-2
turns on runtime checking to check whether a whole number will exceed range
static-libgm2
Driver
Link the standard Modula-2 libraries statically in the compilation.
; Here are C options that we also recognise, either within the compiler
; or to build the preprocessor command lines.
Wall
Modula-2
; Documented in c.opt
Wpedantic
Modula-2
; Documented in common.opt
Wreturn-type
Modula-2
; Documented in common.opt
Wunused-variable
Modula-2
; Documented in c.opt
Wunused-parameter
Modula-2
; Documented in c.opt
B
Modula-2
; Documented in c.opt
D
Modula-2
; Documented in c.opt
E
Modula-2
; Documented in c.opt
I
Modula-2 Joined Separate
; Documented in c.opt
L
Modula-2 Joined Separate
; Not documented
M
Modula-2
; Documented in c.opt
MD
Modula-2
; Documented in c.opt
MF
Modula-2
; Documented in c.opt
MG
Modula-2
; Documented in c.opt
MM
Modula-2
; Documented in c.opt
MMD
Modula-2
; Documented in c.opt
Mmodules
Modula-2
; Documented in c.opt
Mno-modules
Modula-2
; Documented in c.opt
MP
Modula-2
; Documented in c.opt
MQ
Modula-2
; Documented in c.opt
MT
Modula-2
; Documented in c.opt
P
Modula-2
; Documented in c.opt
ansi
Modula-2
; Documented in c.opt
c
Modula-2
; Documented in c.opt
fexceptions
Modula-2
; Documented in common.opt
fobjc-std=objc1
Modula-2
; Documented in c.opt
fpreprocessed
Modula-2
; Documented in c.opt
fworking-directory
Modula-2
; Documented in c.opt
iprefix
Modula-2
; Documented in c.opt
iquote
Modula-2
; Documented in c.opt
isysroot
Modula-2
; Documented in c.opt
isystem
Modula-2
; Documented in c.opt
idirafter
Modula-2
; Documented in c.opt
imultilib
Modula-2
-save-temps
Modula-2 Alias(save-temps)
save-temps
Modula-2
save temporary preprocessed files
save-temps=
Modula-2 Joined
save temporary preprocessed files
traditional-cpp
Modula-2
; Documented in c.opt
; This comment is to ensure we retain the blank line above.
|