]>
Commit | Line | Data |
---|---|---|
4ee9c684 | 1 | /* Parse and display command line options. |
8e8f6434 | 2 | Copyright (C) 2000-2018 Free Software Foundation, Inc. |
4ee9c684 | 3 | Contributed by Andy Vaught |
4 | ||
c84b470d | 5 | This file is part of GCC. |
4ee9c684 | 6 | |
c84b470d | 7 | GCC is free software; you can redistribute it and/or modify it under |
8 | the terms of the GNU General Public License as published by the Free | |
bdabe786 | 9 | Software Foundation; either version 3, or (at your option) any later |
c84b470d | 10 | version. |
4ee9c684 | 11 | |
c84b470d | 12 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
13 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 | for more details. | |
4ee9c684 | 16 | |
17 | You should have received a copy of the GNU General Public License | |
bdabe786 | 18 | along with GCC; see the file COPYING3. If not see |
19 | <http://www.gnu.org/licenses/>. */ | |
4ee9c684 | 20 | |
4ee9c684 | 21 | #include "config.h" |
22 | #include "system.h" | |
23 | #include "coretypes.h" | |
4cba6f60 | 24 | #include "target.h" |
4ee9c684 | 25 | #include "tree.h" |
4cba6f60 | 26 | #include "gfortran.h" |
27 | #include "diagnostic.h" /* For global_dc. */ | |
4ee9c684 | 28 | #include "opts.h" |
e3d1ab2b | 29 | #include "toplev.h" /* For save_decoded_options. */ |
2ecc6bc5 | 30 | #include "cpp.h" |
f36f9b8b | 31 | #include "langhooks.h" |
4ee9c684 | 32 | |
33 | gfc_option_t gfc_option; | |
34 | ||
35 | ||
83a65a0d | 36 | /* Set flags that control warnings and errors for different |
82860817 | 37 | Fortran standards to their default values. Keep in sync with |
38 | libgfortran/runtime/compile_options.c (init_compile_options). */ | |
83a65a0d | 39 | |
40 | static void | |
41 | set_default_std_flags (void) | |
42 | { | |
43 | gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F95_DEL | |
ff4425cf | 44 | | GFC_STD_F2003 | GFC_STD_F2008 | GFC_STD_F95 | GFC_STD_F77 |
2e2156cf | 45 | | GFC_STD_F2008_OBS | GFC_STD_GNU | GFC_STD_LEGACY |
003e134b | 46 | | GFC_STD_F2018 | GFC_STD_F2018_DEL | GFC_STD_F2018_OBS; |
9449a7d9 | 47 | gfc_option.warn_std = GFC_STD_F2018_DEL | GFC_STD_F95_DEL | GFC_STD_LEGACY; |
83a65a0d | 48 | } |
49 | ||
82860817 | 50 | |
cf078427 | 51 | /* Set all the DEC extension flags. */ |
d7cd448a | 52 | |
53 | static void | |
54 | set_dec_flags (int value) | |
55 | { | |
a3b89816 | 56 | if (value) |
57 | { | |
58 | /* Allow legacy code without warnings. */ | |
59 | gfc_option.allow_std |= GFC_STD_F95_OBS | GFC_STD_F95_DEL | |
60 | | GFC_STD_GNU | GFC_STD_LEGACY; | |
61 | gfc_option.warn_std &= ~(GFC_STD_LEGACY | GFC_STD_F95_DEL); | |
62 | } | |
cf078427 | 63 | |
64 | /* Set other DEC compatibility extensions. */ | |
65 | flag_dollar_ok |= value; | |
66 | flag_cray_pointer |= value; | |
67 | flag_dec_structure |= value; | |
68 | flag_dec_intrinsic_ints |= value; | |
69 | flag_dec_static |= value; | |
70 | flag_dec_math |= value; | |
d7cd448a | 71 | } |
72 | ||
73 | ||
e88d34f6 | 74 | /* Return language mask for Fortran options. */ |
75 | ||
76 | unsigned int | |
77 | gfc_option_lang_mask (void) | |
78 | { | |
79 | return CL_Fortran; | |
80 | } | |
81 | ||
f3f006ad | 82 | /* Initialize options structure OPTS. */ |
83 | ||
84 | void | |
85 | gfc_init_options_struct (struct gcc_options *opts) | |
86 | { | |
87 | opts->x_flag_errno_math = 0; | |
a5b628e2 | 88 | opts->frontend_set_flag_errno_math = true; |
f3f006ad | 89 | opts->x_flag_associative_math = -1; |
a5b628e2 | 90 | opts->frontend_set_flag_associative_math = true; |
f3f006ad | 91 | } |
e88d34f6 | 92 | |
82860817 | 93 | /* Get ready for options handling. Keep in sync with |
293d72e0 | 94 | libgfortran/runtime/compile_options.c (init_compile_options). */ |
4ee9c684 | 95 | |
e88d34f6 | 96 | void |
97 | gfc_init_options (unsigned int decoded_options_count, | |
98 | struct cl_decoded_option *decoded_options) | |
4ee9c684 | 99 | { |
8594da07 | 100 | gfc_source_file = NULL; |
4ee9c684 | 101 | gfc_option.module_dir = NULL; |
102 | gfc_option.source_form = FORM_UNKNOWN; | |
766398ac | 103 | gfc_option.max_continue_fixed = 255; |
104 | gfc_option.max_continue_free = 255; | |
4ee9c684 | 105 | gfc_option.max_identifier_length = GFC_MAX_SYMBOL_LEN; |
b6be0ac5 | 106 | gfc_option.max_errors = 25; |
4ee9c684 | 107 | |
9e3a9b8b | 108 | gfc_option.flag_preprocessed = 0; |
8594da07 | 109 | gfc_option.flag_d_lines = -1; |
a28eb9a8 | 110 | gfc_option.flag_init_integer = GFC_INIT_INTEGER_OFF; |
111 | gfc_option.flag_init_integer_value = 0; | |
a28eb9a8 | 112 | gfc_option.flag_init_logical = GFC_INIT_LOGICAL_OFF; |
113 | gfc_option.flag_init_character = GFC_INIT_CHARACTER_OFF; | |
114 | gfc_option.flag_init_character_value = (char)0; | |
115 | ||
8c84a5de | 116 | gfc_option.fpe = 0; |
553e7cef | 117 | /* All except GFC_FPE_INEXACT. */ |
118 | gfc_option.fpe_summary = GFC_FPE_INVALID | GFC_FPE_DENORMAL | |
119 | | GFC_FPE_ZERO | GFC_FPE_OVERFLOW | |
120 | | GFC_FPE_UNDERFLOW; | |
ad8ed98e | 121 | gfc_option.rtcheck = 0; |
8c84a5de | 122 | |
45e6f6f0 | 123 | /* ??? Wmissing-include-dirs is disabled by default in C/C++ but |
124 | enabled by default in Fortran. Ideally, we should express this | |
125 | in .opt, but that is not supported yet. */ | |
126 | if (!global_options_set.x_cpp_warn_missing_include_dirs) | |
7082509e | 127 | global_options.x_cpp_warn_missing_include_dirs = 1; |
45e6f6f0 | 128 | |
d7cd448a | 129 | set_dec_flags (0); |
130 | ||
83a65a0d | 131 | set_default_std_flags (); |
4ee9c684 | 132 | |
2ecc6bc5 | 133 | /* Initialize cpp-related options. */ |
e88d34f6 | 134 | gfc_cpp_init_options (decoded_options_count, decoded_options); |
dc8078a3 | 135 | gfc_diagnostics_init (); |
4ee9c684 | 136 | } |
137 | ||
138 | ||
8594da07 | 139 | /* Determine the source form from the filename extension. We assume |
140 | case insensitivity. */ | |
141 | ||
142 | static gfc_source_form | |
143 | form_from_filename (const char *filename) | |
144 | { | |
8594da07 | 145 | static const struct |
146 | { | |
147 | const char *extension; | |
148 | gfc_source_form form; | |
149 | } | |
150 | exttype[] = | |
151 | { | |
152 | { | |
153 | ".f90", FORM_FREE} | |
154 | , | |
155 | { | |
156 | ".f95", FORM_FREE} | |
157 | , | |
158 | { | |
f30a3c31 | 159 | ".f03", FORM_FREE} |
160 | , | |
161 | { | |
ff4425cf | 162 | ".f08", FORM_FREE} |
163 | , | |
164 | { | |
8594da07 | 165 | ".f", FORM_FIXED} |
166 | , | |
167 | { | |
168 | ".for", FORM_FIXED} | |
169 | , | |
170 | { | |
ed19cf5f | 171 | ".ftn", FORM_FIXED} |
172 | , | |
173 | { | |
8594da07 | 174 | "", FORM_UNKNOWN} |
175 | }; /* sentinel value */ | |
176 | ||
177 | gfc_source_form f_form; | |
178 | const char *fileext; | |
179 | int i; | |
180 | ||
181 | /* Find end of file name. Note, filename is either a NULL pointer or | |
182 | a NUL terminated string. */ | |
183 | i = 0; | |
184 | while (filename[i] != '\0') | |
185 | i++; | |
186 | ||
187 | /* Find last period. */ | |
188 | while (i >= 0 && (filename[i] != '.')) | |
189 | i--; | |
190 | ||
191 | /* Did we see a file extension? */ | |
192 | if (i < 0) | |
193 | return FORM_UNKNOWN; /* Nope */ | |
194 | ||
195 | /* Get file extension and compare it to others. */ | |
196 | fileext = &(filename[i]); | |
197 | ||
198 | i = -1; | |
199 | f_form = FORM_UNKNOWN; | |
200 | do | |
201 | { | |
202 | i++; | |
203 | if (strcasecmp (fileext, exttype[i].extension) == 0) | |
204 | { | |
205 | f_form = exttype[i].form; | |
206 | break; | |
207 | } | |
208 | } | |
209 | while (exttype[i].form != FORM_UNKNOWN); | |
210 | ||
211 | return f_form; | |
212 | } | |
213 | ||
214 | ||
4ee9c684 | 215 | /* Finalize commandline options. */ |
216 | ||
217 | bool | |
218 | gfc_post_options (const char **pfilename) | |
219 | { | |
9e3a9b8b | 220 | const char *filename = *pfilename, *canon_source_file = NULL; |
a0d72493 | 221 | char *source_path; |
222 | int i; | |
4ee9c684 | 223 | |
c6418a4e | 224 | /* Excess precision other than "fast" requires front-end |
225 | support. */ | |
4267ed07 | 226 | if (flag_excess_precision_cmdline == EXCESS_PRECISION_STANDARD) |
c6418a4e | 227 | sorry ("-fexcess-precision=standard for Fortran"); |
228 | flag_excess_precision_cmdline = EXCESS_PRECISION_FAST; | |
229 | ||
fb063c92 | 230 | /* Fortran allows associative math - but we cannot reassociate if |
231 | we want traps or signed zeros. Cf. also flag_protect_parens. */ | |
232 | if (flag_associative_math == -1) | |
233 | flag_associative_math = (!flag_trapping_math && !flag_signed_zeros); | |
234 | ||
eb106faf | 235 | if (flag_protect_parens == -1) |
236 | flag_protect_parens = !optimize_fast; | |
9d4ede2c | 237 | |
b254210f | 238 | /* -Ofast sets implies -fstack-arrays unless an explicit size is set for |
239 | stack arrays. */ | |
240 | if (flag_stack_arrays == -1 && flag_max_stack_var_size == -2) | |
eb106faf | 241 | flag_stack_arrays = optimize_fast; |
9e412fd2 | 242 | |
929c6f45 | 243 | /* By default, disable (re)allocation during assignment for -std=f95, |
293d72e0 | 244 | and enable it for F2003/F2008/GNU/Legacy. */ |
eb106faf | 245 | if (flag_realloc_lhs == -1) |
929c6f45 | 246 | { |
247 | if (gfc_option.allow_std & GFC_STD_F2003) | |
eb106faf | 248 | flag_realloc_lhs = 1; |
929c6f45 | 249 | else |
eb106faf | 250 | flag_realloc_lhs = 0; |
929c6f45 | 251 | } |
252 | ||
ad8ed98e | 253 | /* -fbounds-check is equivalent to -fcheck=bounds */ |
254 | if (flag_bounds_check) | |
255 | gfc_option.rtcheck |= GFC_RTCHECK_BOUNDS; | |
256 | ||
71278019 | 257 | if (flag_compare_debug) |
829d7a08 | 258 | flag_dump_fortran_original = 0; |
71278019 | 259 | |
566d7c74 | 260 | /* Make -fmax-errors visible to gfortran's diagnostic machinery. */ |
261 | if (global_options_set.x_flag_max_errors) | |
262 | gfc_option.max_errors = flag_max_errors; | |
263 | ||
4ee9c684 | 264 | /* Verify the input file name. */ |
265 | if (!filename || strcmp (filename, "-") == 0) | |
266 | { | |
267 | filename = ""; | |
268 | } | |
269 | ||
9e3a9b8b | 270 | if (gfc_option.flag_preprocessed) |
271 | { | |
272 | /* For preprocessed files, if the first tokens are of the form # NUM. | |
273 | handle the directives so we know the original file name. */ | |
274 | gfc_source_file = gfc_read_orig_filename (filename, &canon_source_file); | |
275 | if (gfc_source_file == NULL) | |
276 | gfc_source_file = filename; | |
277 | else | |
278 | *pfilename = gfc_source_file; | |
279 | } | |
280 | else | |
281 | gfc_source_file = filename; | |
282 | ||
283 | if (canon_source_file == NULL) | |
284 | canon_source_file = gfc_source_file; | |
8594da07 | 285 | |
a0d72493 | 286 | /* Adds the path where the source file is to the list of include files. */ |
287 | ||
9e3a9b8b | 288 | i = strlen (canon_source_file); |
289 | while (i > 0 && !IS_DIR_SEPARATOR (canon_source_file[i])) | |
a0d72493 | 290 | i--; |
1bcc6eb8 | 291 | |
a0d72493 | 292 | if (i != 0) |
293 | { | |
48d8ad5a | 294 | source_path = (char *) alloca (i + 1); |
9e3a9b8b | 295 | memcpy (source_path, canon_source_file, i); |
a0d72493 | 296 | source_path[i] = 0; |
db24420f | 297 | gfc_add_include_path (source_path, true, true, true); |
a0d72493 | 298 | } |
299 | else | |
db24420f | 300 | gfc_add_include_path (".", true, true, true); |
a0d72493 | 301 | |
9e3a9b8b | 302 | if (canon_source_file != gfc_source_file) |
434f0922 | 303 | free (CONST_CAST (char *, canon_source_file)); |
9e3a9b8b | 304 | |
8594da07 | 305 | /* Decide which form the file will be read in as. */ |
306 | ||
307 | if (gfc_option.source_form != FORM_UNKNOWN) | |
308 | gfc_current_form = gfc_option.source_form; | |
309 | else | |
310 | { | |
311 | gfc_current_form = form_from_filename (filename); | |
312 | ||
313 | if (gfc_current_form == FORM_UNKNOWN) | |
314 | { | |
315 | gfc_current_form = FORM_FREE; | |
005915c5 | 316 | main_input_filename = filename; |
6f521718 | 317 | gfc_warning_now (0, "Reading file %qs as free form", |
bf79c656 | 318 | (filename[0] == '\0') ? "<stdin>" : filename); |
8594da07 | 319 | } |
320 | } | |
321 | ||
322 | /* If the user specified -fd-lines-as-{code|comments} verify that we're | |
323 | in fixed form. */ | |
324 | if (gfc_current_form == FORM_FREE) | |
325 | { | |
326 | if (gfc_option.flag_d_lines == 0) | |
6f521718 | 327 | gfc_warning_now (0, "%<-fd-lines-as-comments%> has no effect " |
399c003f | 328 | "in free form"); |
8594da07 | 329 | else if (gfc_option.flag_d_lines == 1) |
6f521718 | 330 | gfc_warning_now (0, "%<-fd-lines-as-code%> has no effect in free form"); |
bf1857ff | 331 | |
332 | if (warn_line_truncation == -1) | |
333 | warn_line_truncation = 1; | |
334 | ||
335 | /* Enable -Werror=line-truncation when -Werror and -Wno-error have | |
336 | not been set. */ | |
337 | if (warn_line_truncation && !global_options_set.x_warnings_are_errors | |
338 | && (global_dc->classify_diagnostic[OPT_Wline_truncation] == | |
339 | DK_UNSPECIFIED)) | |
340 | diagnostic_classify_diagnostic (global_dc, OPT_Wline_truncation, | |
341 | DK_ERROR, UNKNOWN_LOCATION); | |
8594da07 | 342 | } |
63256634 | 343 | else |
344 | { | |
345 | /* With -fdec, set -fd-lines-as-comments by default in fixed form. */ | |
346 | if (flag_dec && gfc_option.flag_d_lines == -1) | |
347 | gfc_option.flag_d_lines = 0; | |
348 | ||
349 | if (warn_line_truncation == -1) | |
350 | warn_line_truncation = 0; | |
351 | } | |
4ee9c684 | 352 | |
675e3934 | 353 | /* If -pedantic, warn about the use of GNU extensions. */ |
354 | if (pedantic && (gfc_option.allow_std & GFC_STD_GNU) != 0) | |
355 | gfc_option.warn_std |= GFC_STD_GNU; | |
c667e11d | 356 | /* -std=legacy -pedantic is effectively -std=gnu. */ |
357 | if (pedantic && (gfc_option.allow_std & GFC_STD_LEGACY) != 0) | |
358 | gfc_option.warn_std |= GFC_STD_F95_OBS | GFC_STD_F95_DEL | GFC_STD_LEGACY; | |
675e3934 | 359 | |
bdaed7d2 | 360 | /* If the user didn't explicitly specify -f(no)-second-underscore we |
361 | use it if we're trying to be compatible with f2c, and not | |
362 | otherwise. */ | |
eb106faf | 363 | if (flag_second_underscore == -1) |
829d7a08 | 364 | flag_second_underscore = flag_f2c; |
bdaed7d2 | 365 | |
829d7a08 | 366 | if (!flag_automatic && flag_max_stack_var_size != -2 |
eb106faf | 367 | && flag_max_stack_var_size != 0) |
6f521718 | 368 | gfc_warning_now (0, "Flag %<-fno-automatic%> overwrites %<-fmax-stack-var-size=%d%>", |
eb106faf | 369 | flag_max_stack_var_size); |
829d7a08 | 370 | else if (!flag_automatic && flag_recursive) |
6f521718 | 371 | gfc_warning_now (0, "Flag %<-fno-automatic%> overwrites %<-frecursive%>"); |
829d7a08 | 372 | else if (!flag_automatic && flag_openmp) |
6f521718 | 373 | gfc_warning_now (0, "Flag %<-fno-automatic%> overwrites %<-frecursive%> implied by " |
eb106faf | 374 | "%<-fopenmp%>"); |
829d7a08 | 375 | else if (flag_max_stack_var_size != -2 && flag_recursive) |
6f521718 | 376 | gfc_warning_now (0, "Flag %<-frecursive%> overwrites %<-fmax-stack-var-size=%d%>", |
eb106faf | 377 | flag_max_stack_var_size); |
829d7a08 | 378 | else if (flag_max_stack_var_size != -2 && flag_openmp) |
6f521718 | 379 | gfc_warning_now (0, "Flag %<-fmax-stack-var-size=%d%> overwrites %<-frecursive%> " |
eb106faf | 380 | "implied by %<-fopenmp%>", flag_max_stack_var_size); |
14af4f75 | 381 | |
a7bdd774 | 382 | /* Implement -frecursive as -fmax-stack-var-size=-1. */ |
829d7a08 | 383 | if (flag_recursive) |
eb106faf | 384 | flag_max_stack_var_size = -1; |
14af4f75 | 385 | |
a7bdd774 | 386 | /* Implied -frecursive; implemented as -fmax-stack-var-size=-1. */ |
829d7a08 | 387 | if (flag_max_stack_var_size == -2 && flag_openmp && flag_automatic) |
a7bdd774 | 388 | { |
829d7a08 | 389 | flag_recursive = 1; |
eb106faf | 390 | flag_max_stack_var_size = -1; |
a7bdd774 | 391 | } |
392 | ||
b254210f | 393 | /* Set flag_stack_arrays correctly. */ |
394 | if (flag_stack_arrays == -1) | |
395 | flag_stack_arrays = 0; | |
396 | ||
14af4f75 | 397 | /* Set default. */ |
eb106faf | 398 | if (flag_max_stack_var_size == -2) |
399 | flag_max_stack_var_size = 32768; | |
14af4f75 | 400 | |
7f2e183b | 401 | /* Implement -fno-automatic as -fmax-stack-var-size=0. */ |
829d7a08 | 402 | if (!flag_automatic) |
eb106faf | 403 | flag_max_stack_var_size = 0; |
e27238e0 | 404 | |
c23d681b | 405 | /* If the user did not specify an inline matmul limit, inline up to the BLAS |
406 | limit or up to 30 if no external BLAS is specified. */ | |
08f351fd | 407 | |
c23d681b | 408 | if (flag_inline_matmul_limit < 0) |
409 | { | |
410 | if (flag_external_blas) | |
411 | flag_inline_matmul_limit = flag_blas_matmul_limit; | |
412 | else | |
413 | flag_inline_matmul_limit = 30; | |
414 | } | |
08f351fd | 415 | |
10b2bb30 | 416 | /* Optimization implies front end optimization, unless the user |
417 | specified it directly. */ | |
418 | ||
eb106faf | 419 | if (flag_frontend_optimize == -1) |
420 | flag_frontend_optimize = optimize; | |
421 | ||
44319903 | 422 | /* Same for front end loop interchange. */ |
423 | ||
424 | if (flag_frontend_loop_interchange == -1) | |
425 | flag_frontend_loop_interchange = optimize; | |
426 | ||
829d7a08 | 427 | if (flag_max_array_constructor < 65535) |
428 | flag_max_array_constructor = 65535; | |
429 | ||
eb106faf | 430 | if (flag_fixed_line_length != 0 && flag_fixed_line_length < 7) |
431 | gfc_fatal_error ("Fixed line length must be at least seven"); | |
432 | ||
433 | if (flag_free_line_length != 0 && flag_free_line_length < 4) | |
434 | gfc_fatal_error ("Free line length must be at least three"); | |
435 | ||
436 | if (flag_max_subrecord_length > MAX_SUBRECORD_LENGTH) | |
437 | gfc_fatal_error ("Maximum subrecord length cannot exceed %d", | |
438 | MAX_SUBRECORD_LENGTH); | |
10b2bb30 | 439 | |
2ecc6bc5 | 440 | gfc_cpp_post_options (); |
441 | ||
f36f9b8b | 442 | if (gfc_option.allow_std & GFC_STD_F2008) |
443 | lang_hooks.name = "GNU Fortran2008"; | |
444 | else if (gfc_option.allow_std & GFC_STD_F2003) | |
445 | lang_hooks.name = "GNU Fortran2003"; | |
446 | ||
c7a63538 | 447 | return gfc_cpp_preprocess_only (); |
4ee9c684 | 448 | } |
449 | ||
450 | ||
4ee9c684 | 451 | static void |
452 | gfc_handle_module_path_options (const char *arg) | |
453 | { | |
454 | ||
455 | if (gfc_option.module_dir != NULL) | |
c4facd47 | 456 | gfc_fatal_error ("gfortran: Only one %<-J%> option allowed"); |
4ee9c684 | 457 | |
dfa3fb6a | 458 | gfc_option.module_dir = XCNEWVEC (char, strlen (arg) + 2); |
4ee9c684 | 459 | strcpy (gfc_option.module_dir, arg); |
3dc083ce | 460 | |
db24420f | 461 | gfc_add_include_path (gfc_option.module_dir, true, false, true); |
e500aeee | 462 | |
463 | strcat (gfc_option.module_dir, "/"); | |
4ee9c684 | 464 | } |
465 | ||
1bcc6eb8 | 466 | |
553e7cef | 467 | /* Handle options -ffpe-trap= and -ffpe-summary=. */ |
468 | ||
8c84a5de | 469 | static void |
553e7cef | 470 | gfc_handle_fpe_option (const char *arg, bool trap) |
8c84a5de | 471 | { |
472 | int result, pos = 0, n; | |
98b28ab6 | 473 | /* precision is a backwards compatibility alias for inexact. */ |
8c84a5de | 474 | static const char * const exception[] = { "invalid", "denormal", "zero", |
1bcc6eb8 | 475 | "overflow", "underflow", |
98b28ab6 | 476 | "inexact", "precision", NULL }; |
8c84a5de | 477 | static const int opt_exception[] = { GFC_FPE_INVALID, GFC_FPE_DENORMAL, |
478 | GFC_FPE_ZERO, GFC_FPE_OVERFLOW, | |
98b28ab6 | 479 | GFC_FPE_UNDERFLOW, GFC_FPE_INEXACT, |
480 | GFC_FPE_INEXACT, | |
8c84a5de | 481 | 0 }; |
553e7cef | 482 | |
293d72e0 | 483 | /* As the default for -ffpe-summary= is nonzero, set it to 0. */ |
553e7cef | 484 | if (!trap) |
485 | gfc_option.fpe_summary = 0; | |
486 | ||
8c84a5de | 487 | while (*arg) |
488 | { | |
489 | while (*arg == ',') | |
490 | arg++; | |
1bcc6eb8 | 491 | |
8c84a5de | 492 | while (arg[pos] && arg[pos] != ',') |
493 | pos++; | |
1bcc6eb8 | 494 | |
8c84a5de | 495 | result = 0; |
553e7cef | 496 | if (!trap && strncmp ("none", arg, pos) == 0) |
8c84a5de | 497 | { |
553e7cef | 498 | gfc_option.fpe_summary = 0; |
499 | arg += pos; | |
500 | pos = 0; | |
501 | continue; | |
502 | } | |
503 | else if (!trap && strncmp ("all", arg, pos) == 0) | |
504 | { | |
505 | gfc_option.fpe_summary = GFC_FPE_INVALID | GFC_FPE_DENORMAL | |
506 | | GFC_FPE_ZERO | GFC_FPE_OVERFLOW | |
507 | | GFC_FPE_UNDERFLOW | GFC_FPE_INEXACT; | |
508 | arg += pos; | |
509 | pos = 0; | |
510 | continue; | |
511 | } | |
512 | else | |
513 | for (n = 0; exception[n] != NULL; n++) | |
514 | { | |
8c84a5de | 515 | if (exception[n] && strncmp (exception[n], arg, pos) == 0) |
516 | { | |
553e7cef | 517 | if (trap) |
518 | gfc_option.fpe |= opt_exception[n]; | |
519 | else | |
520 | gfc_option.fpe_summary |= opt_exception[n]; | |
8c84a5de | 521 | arg += pos; |
522 | pos = 0; | |
523 | result = 1; | |
524 | break; | |
525 | } | |
553e7cef | 526 | } |
527 | if (!result && !trap) | |
c4facd47 | 528 | gfc_fatal_error ("Argument to %<-ffpe-trap%> is not valid: %s", arg); |
553e7cef | 529 | else if (!result) |
c4facd47 | 530 | gfc_fatal_error ("Argument to %<-ffpe-summary%> is not valid: %s", arg); |
553e7cef | 531 | |
8c84a5de | 532 | } |
533 | } | |
534 | ||
1bcc6eb8 | 535 | |
ad8ed98e | 536 | static void |
537 | gfc_handle_runtime_check_option (const char *arg) | |
538 | { | |
539 | int result, pos = 0, n; | |
540 | static const char * const optname[] = { "all", "bounds", "array-temps", | |
3a60b071 | 541 | "recursion", "do", "pointer", |
542 | "mem", NULL }; | |
ad8ed98e | 543 | static const int optmask[] = { GFC_RTCHECK_ALL, GFC_RTCHECK_BOUNDS, |
544 | GFC_RTCHECK_ARRAY_TEMPS, | |
7f1bd03f | 545 | GFC_RTCHECK_RECURSION, GFC_RTCHECK_DO, |
3a60b071 | 546 | GFC_RTCHECK_POINTER, GFC_RTCHECK_MEM, |
ad8ed98e | 547 | 0 }; |
548 | ||
549 | while (*arg) | |
550 | { | |
551 | while (*arg == ',') | |
552 | arg++; | |
553 | ||
554 | while (arg[pos] && arg[pos] != ',') | |
555 | pos++; | |
556 | ||
557 | result = 0; | |
558 | for (n = 0; optname[n] != NULL; n++) | |
559 | { | |
560 | if (optname[n] && strncmp (optname[n], arg, pos) == 0) | |
561 | { | |
562 | gfc_option.rtcheck |= optmask[n]; | |
563 | arg += pos; | |
564 | pos = 0; | |
565 | result = 1; | |
566 | break; | |
567 | } | |
e7fbac94 | 568 | else if (optname[n] && pos > 3 && strncmp ("no-", arg, 3) == 0 |
569 | && strncmp (optname[n], arg+3, pos-3) == 0) | |
570 | { | |
571 | gfc_option.rtcheck &= ~optmask[n]; | |
572 | arg += pos; | |
573 | pos = 0; | |
574 | result = 1; | |
575 | break; | |
576 | } | |
ad8ed98e | 577 | } |
578 | if (!result) | |
c4facd47 | 579 | gfc_fatal_error ("Argument to %<-fcheck%> is not valid: %s", arg); |
ad8ed98e | 580 | } |
581 | } | |
582 | ||
583 | ||
4ee9c684 | 584 | /* Handle command-line options. Returns 0 if unrecognized, 1 if |
585 | recognized and handled. */ | |
1bcc6eb8 | 586 | |
b78351e5 | 587 | bool |
8e18705e | 588 | gfc_handle_option (size_t scode, const char *arg, HOST_WIDE_INT value, |
3c6c0e40 | 589 | int kind ATTRIBUTE_UNUSED, location_t loc ATTRIBUTE_UNUSED, |
b78351e5 | 590 | const struct cl_option_handlers *handlers ATTRIBUTE_UNUSED) |
4ee9c684 | 591 | { |
b78351e5 | 592 | bool result = true; |
4ee9c684 | 593 | enum opt_code code = (enum opt_code) scode; |
594 | ||
2ecc6bc5 | 595 | if (gfc_cpp_handle_option (scode, arg, value) == 1) |
b78351e5 | 596 | return true; |
2ecc6bc5 | 597 | |
4ee9c684 | 598 | switch (code) |
599 | { | |
600 | default: | |
45e6f6f0 | 601 | if (cl_options[code].flags & gfc_option_lang_mask ()) |
602 | break; | |
b78351e5 | 603 | result = false; |
4ee9c684 | 604 | break; |
605 | ||
da6ffc6d | 606 | case OPT_fcheck_array_temporaries: |
ad8ed98e | 607 | gfc_option.rtcheck |= GFC_RTCHECK_ARRAY_TEMPS; |
da6ffc6d | 608 | break; |
609 | ||
8594da07 | 610 | case OPT_fd_lines_as_code: |
611 | gfc_option.flag_d_lines = 1; | |
612 | break; | |
613 | ||
614 | case OPT_fd_lines_as_comments: | |
615 | gfc_option.flag_d_lines = 0; | |
616 | break; | |
617 | ||
4ee9c684 | 618 | case OPT_ffixed_form: |
619 | gfc_option.source_form = FORM_FIXED; | |
620 | break; | |
621 | ||
622 | case OPT_ffree_form: | |
623 | gfc_option.source_form = FORM_FREE; | |
624 | break; | |
625 | ||
9a61fba1 | 626 | case OPT_static_libgfortran: |
627 | #ifndef HAVE_LD_STATIC_DYNAMIC | |
c4facd47 | 628 | gfc_fatal_error ("%<-static-libgfortran%> is not supported in this " |
9a61fba1 | 629 | "configuration"); |
630 | #endif | |
631 | break; | |
632 | ||
99227731 | 633 | case OPT_fintrinsic_modules_path: |
7cb1cb52 | 634 | case OPT_fintrinsic_modules_path_: |
db24420f | 635 | |
636 | /* This is needed because omp_lib.h is in a directory together | |
637 | with intrinsic modules. Do no warn because during testing | |
638 | without an installed compiler, we would get lots of bogus | |
639 | warnings for a missing include directory. */ | |
640 | gfc_add_include_path (arg, false, false, false); | |
641 | ||
99227731 | 642 | gfc_add_intrinsic_modules_path (arg); |
643 | break; | |
644 | ||
9e3a9b8b | 645 | case OPT_fpreprocessed: |
646 | gfc_option.flag_preprocessed = value; | |
647 | break; | |
648 | ||
4ee9c684 | 649 | case OPT_fmax_identifier_length_: |
650 | if (value > GFC_MAX_SYMBOL_LEN) | |
b71883de | 651 | gfc_fatal_error ("Maximum supported identifier length is %d", |
4ee9c684 | 652 | GFC_MAX_SYMBOL_LEN); |
653 | gfc_option.max_identifier_length = value; | |
654 | break; | |
655 | ||
a28eb9a8 | 656 | case OPT_finit_local_zero: |
657 | gfc_option.flag_init_integer = GFC_INIT_INTEGER_ON; | |
658 | gfc_option.flag_init_integer_value = 0; | |
4fe73152 | 659 | flag_init_real = GFC_INIT_REAL_ZERO; |
a28eb9a8 | 660 | gfc_option.flag_init_logical = GFC_INIT_LOGICAL_FALSE; |
661 | gfc_option.flag_init_character = GFC_INIT_CHARACTER_ON; | |
662 | gfc_option.flag_init_character_value = (char)0; | |
663 | break; | |
664 | ||
665 | case OPT_finit_logical_: | |
666 | if (!strcasecmp (arg, "false")) | |
667 | gfc_option.flag_init_logical = GFC_INIT_LOGICAL_FALSE; | |
668 | else if (!strcasecmp (arg, "true")) | |
669 | gfc_option.flag_init_logical = GFC_INIT_LOGICAL_TRUE; | |
670 | else | |
c4facd47 | 671 | gfc_fatal_error ("Unrecognized option to %<-finit-logical%>: %s", |
a28eb9a8 | 672 | arg); |
673 | break; | |
674 | ||
a28eb9a8 | 675 | case OPT_finit_integer_: |
676 | gfc_option.flag_init_integer = GFC_INIT_INTEGER_ON; | |
677 | gfc_option.flag_init_integer_value = atoi (arg); | |
678 | break; | |
679 | ||
680 | case OPT_finit_character_: | |
681 | if (value >= 0 && value <= 127) | |
682 | { | |
683 | gfc_option.flag_init_character = GFC_INIT_CHARACTER_ON; | |
684 | gfc_option.flag_init_character_value = (char)value; | |
685 | } | |
686 | else | |
c4facd47 | 687 | gfc_fatal_error ("The value of n in %<-finit-character=n%> must be " |
a28eb9a8 | 688 | "between 0 and 127"); |
689 | break; | |
690 | ||
4ee9c684 | 691 | case OPT_I: |
db24420f | 692 | gfc_add_include_path (arg, true, false, true); |
4ee9c684 | 693 | break; |
694 | ||
695 | case OPT_J: | |
4ee9c684 | 696 | gfc_handle_module_path_options (arg); |
ca9ccc0d | 697 | break; |
db96818c | 698 | |
8c84a5de | 699 | case OPT_ffpe_trap_: |
553e7cef | 700 | gfc_handle_fpe_option (arg, true); |
701 | break; | |
702 | ||
703 | case OPT_ffpe_summary_: | |
704 | gfc_handle_fpe_option (arg, false); | |
8c84a5de | 705 | break; |
706 | ||
4ee9c684 | 707 | case OPT_std_f95: |
9449a7d9 | 708 | gfc_option.allow_std = GFC_STD_OPT_F95; |
4ee9c684 | 709 | gfc_option.warn_std = GFC_STD_F95_OBS; |
766398ac | 710 | gfc_option.max_continue_fixed = 19; |
711 | gfc_option.max_continue_free = 39; | |
4ee9c684 | 712 | gfc_option.max_identifier_length = 31; |
8290d53f | 713 | warn_ampersand = 1; |
638664b8 | 714 | warn_tabs = 1; |
4ee9c684 | 715 | break; |
716 | ||
717 | case OPT_std_f2003: | |
9449a7d9 | 718 | gfc_option.allow_std = GFC_STD_OPT_F03; |
d6583a5f | 719 | gfc_option.warn_std = GFC_STD_F95_OBS; |
4ee9c684 | 720 | gfc_option.max_identifier_length = 63; |
8290d53f | 721 | warn_ampersand = 1; |
638664b8 | 722 | warn_tabs = 1; |
4ee9c684 | 723 | break; |
724 | ||
ff4425cf | 725 | case OPT_std_f2008: |
9449a7d9 | 726 | gfc_option.allow_std = GFC_STD_OPT_F08; |
a3b81b0f | 727 | gfc_option.warn_std = GFC_STD_F95_OBS | GFC_STD_F2008_OBS; |
ff4425cf | 728 | gfc_option.max_identifier_length = 63; |
8290d53f | 729 | warn_ampersand = 1; |
638664b8 | 730 | warn_tabs = 1; |
ff4425cf | 731 | break; |
732 | ||
d976af8e | 733 | case OPT_std_f2008ts: |
003e134b | 734 | case OPT_std_f2018: |
9449a7d9 | 735 | gfc_option.allow_std = GFC_STD_OPT_F18; |
003e134b | 736 | gfc_option.warn_std = GFC_STD_F95_OBS | GFC_STD_F2008_OBS |
737 | | GFC_STD_F2018_OBS; | |
738 | gfc_option.max_identifier_length = 63; | |
739 | warn_ampersand = 1; | |
740 | warn_tabs = 1; | |
741 | break; | |
742 | ||
4ee9c684 | 743 | case OPT_std_gnu: |
83a65a0d | 744 | set_default_std_flags (); |
c667e11d | 745 | break; |
746 | ||
747 | case OPT_std_legacy: | |
83a65a0d | 748 | set_default_std_flags (); |
c667e11d | 749 | gfc_option.warn_std = 0; |
d6583a5f | 750 | break; |
751 | ||
3b6a4b41 | 752 | case OPT_fshort_enums: |
4aafe913 | 753 | /* Handled in language-independent code. */ |
3b6a4b41 | 754 | break; |
15774a8b | 755 | |
ad8ed98e | 756 | case OPT_fcheck_: |
757 | gfc_handle_runtime_check_option (arg); | |
758 | break; | |
d7cd448a | 759 | |
760 | case OPT_fdec: | |
761 | /* Enable all DEC extensions. */ | |
762 | set_dec_flags (1); | |
763 | break; | |
764 | ||
765 | case OPT_fdec_structure: | |
cf078427 | 766 | flag_dec_structure = 1; |
d7cd448a | 767 | break; |
4ee9c684 | 768 | } |
769 | ||
d3b7ee7c | 770 | Fortran_handle_option_auto (&global_options, &global_options_set, |
771 | scode, arg, value, | |
772 | gfc_option_lang_mask (), kind, | |
773 | loc, handlers, global_dc); | |
4ee9c684 | 774 | return result; |
775 | } | |
e3d1ab2b | 776 | |
777 | ||
778 | /* Return a string with the options passed to the compiler; used for | |
779 | Fortran's compiler_options() intrinsic. */ | |
780 | ||
781 | char * | |
782 | gfc_get_option_string (void) | |
783 | { | |
784 | unsigned j; | |
785 | size_t len, pos; | |
786 | char *result; | |
787 | ||
90acbb6e | 788 | /* Allocate and return a one-character string with '\0'. */ |
789 | if (!save_decoded_options_count) | |
790 | return XCNEWVEC (char, 1); | |
791 | ||
e3d1ab2b | 792 | /* Determine required string length. */ |
793 | ||
794 | len = 0; | |
795 | for (j = 1; j < save_decoded_options_count; j++) | |
796 | { | |
797 | switch (save_decoded_options[j].opt_index) | |
798 | { | |
799 | case OPT_o: | |
800 | case OPT_d: | |
801 | case OPT_dumpbase: | |
802 | case OPT_dumpdir: | |
803 | case OPT_auxbase: | |
804 | case OPT_quiet: | |
805 | case OPT_version: | |
806 | case OPT_fintrinsic_modules_path: | |
7cb1cb52 | 807 | case OPT_fintrinsic_modules_path_: |
e3d1ab2b | 808 | /* Ignore these. */ |
809 | break; | |
810 | default: | |
293d72e0 | 811 | /* Ignore file names. */ |
e3d1ab2b | 812 | if (save_decoded_options[j].orig_option_with_args_text[0] == '-') |
813 | len += 1 | |
814 | + strlen (save_decoded_options[j].orig_option_with_args_text); | |
815 | } | |
816 | } | |
817 | ||
dfa3fb6a | 818 | result = XCNEWVEC (char, len); |
e3d1ab2b | 819 | |
820 | pos = 0; | |
821 | for (j = 1; j < save_decoded_options_count; j++) | |
822 | { | |
823 | switch (save_decoded_options[j].opt_index) | |
824 | { | |
825 | case OPT_o: | |
826 | case OPT_d: | |
827 | case OPT_dumpbase: | |
828 | case OPT_dumpdir: | |
829 | case OPT_auxbase: | |
830 | case OPT_quiet: | |
831 | case OPT_version: | |
832 | case OPT_fintrinsic_modules_path: | |
7cb1cb52 | 833 | case OPT_fintrinsic_modules_path_: |
e3d1ab2b | 834 | /* Ignore these. */ |
835 | continue; | |
836 | ||
837 | case OPT_cpp_: | |
838 | /* Use "-cpp" rather than "-cpp=<temporary file>". */ | |
839 | len = 4; | |
840 | break; | |
841 | ||
842 | default: | |
293d72e0 | 843 | /* Ignore file names. */ |
e3d1ab2b | 844 | if (save_decoded_options[j].orig_option_with_args_text[0] != '-') |
845 | continue; | |
846 | ||
847 | len = strlen (save_decoded_options[j].orig_option_with_args_text); | |
848 | } | |
849 | ||
850 | memcpy (&result[pos], save_decoded_options[j].orig_option_with_args_text, len); | |
851 | pos += len; | |
852 | result[pos++] = ' '; | |
853 | } | |
854 | ||
855 | result[--pos] = '\0'; | |
856 | return result; | |
857 | } |