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4ee9c684 | 1 | /* Parse and display command line options. |
d353bf18 | 2 | Copyright (C) 2000-2015 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" | |
b20a8bb4 | 24 | #include "hash-set.h" |
b20a8bb4 | 25 | #include "vec.h" |
b20a8bb4 | 26 | #include "input.h" |
27 | #include "alias.h" | |
28 | #include "symtab.h" | |
29 | #include "options.h" | |
b20a8bb4 | 30 | #include "inchash.h" |
4ee9c684 | 31 | #include "tree.h" |
32 | #include "flags.h" | |
33 | #include "intl.h" | |
34 | #include "opts.h" | |
e3d1ab2b | 35 | #include "toplev.h" /* For save_decoded_options. */ |
0452cf51 | 36 | #include "params.h" |
4ee9c684 | 37 | #include "tree-inline.h" |
4ee9c684 | 38 | #include "gfortran.h" |
3b6a4b41 | 39 | #include "target.h" |
2ecc6bc5 | 40 | #include "cpp.h" |
fbb6fbd8 | 41 | #include "diagnostic.h" /* For global_dc. */ |
c6418a4e | 42 | #include "tm.h" |
f36f9b8b | 43 | #include "langhooks.h" |
4ee9c684 | 44 | |
45 | gfc_option_t gfc_option; | |
46 | ||
47 | ||
83a65a0d | 48 | /* Set flags that control warnings and errors for different |
82860817 | 49 | Fortran standards to their default values. Keep in sync with |
50 | libgfortran/runtime/compile_options.c (init_compile_options). */ | |
83a65a0d | 51 | |
52 | static void | |
53 | set_default_std_flags (void) | |
54 | { | |
55 | gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F95_DEL | |
ff4425cf | 56 | | GFC_STD_F2003 | GFC_STD_F2008 | GFC_STD_F95 | GFC_STD_F77 |
d976af8e | 57 | | GFC_STD_F2008_OBS | GFC_STD_F2008_TS | GFC_STD_GNU | GFC_STD_LEGACY; |
83a65a0d | 58 | gfc_option.warn_std = GFC_STD_F95_DEL | GFC_STD_LEGACY; |
59 | } | |
60 | ||
82860817 | 61 | |
e88d34f6 | 62 | /* Return language mask for Fortran options. */ |
63 | ||
64 | unsigned int | |
65 | gfc_option_lang_mask (void) | |
66 | { | |
67 | return CL_Fortran; | |
68 | } | |
69 | ||
f3f006ad | 70 | /* Initialize options structure OPTS. */ |
71 | ||
72 | void | |
73 | gfc_init_options_struct (struct gcc_options *opts) | |
74 | { | |
75 | opts->x_flag_errno_math = 0; | |
a5b628e2 | 76 | opts->frontend_set_flag_errno_math = true; |
f3f006ad | 77 | opts->x_flag_associative_math = -1; |
a5b628e2 | 78 | opts->frontend_set_flag_associative_math = true; |
f3f006ad | 79 | } |
e88d34f6 | 80 | |
82860817 | 81 | /* Get ready for options handling. Keep in sync with |
293d72e0 | 82 | libgfortran/runtime/compile_options.c (init_compile_options). */ |
4ee9c684 | 83 | |
e88d34f6 | 84 | void |
85 | gfc_init_options (unsigned int decoded_options_count, | |
86 | struct cl_decoded_option *decoded_options) | |
4ee9c684 | 87 | { |
8594da07 | 88 | gfc_source_file = NULL; |
4ee9c684 | 89 | gfc_option.module_dir = NULL; |
90 | gfc_option.source_form = FORM_UNKNOWN; | |
766398ac | 91 | gfc_option.max_continue_fixed = 255; |
92 | gfc_option.max_continue_free = 255; | |
4ee9c684 | 93 | gfc_option.max_identifier_length = GFC_MAX_SYMBOL_LEN; |
b6be0ac5 | 94 | gfc_option.max_errors = 25; |
4ee9c684 | 95 | |
9e3a9b8b | 96 | gfc_option.flag_preprocessed = 0; |
8594da07 | 97 | gfc_option.flag_d_lines = -1; |
a28eb9a8 | 98 | gfc_option.flag_init_integer = GFC_INIT_INTEGER_OFF; |
99 | gfc_option.flag_init_integer_value = 0; | |
a28eb9a8 | 100 | gfc_option.flag_init_logical = GFC_INIT_LOGICAL_OFF; |
101 | gfc_option.flag_init_character = GFC_INIT_CHARACTER_OFF; | |
102 | gfc_option.flag_init_character_value = (char)0; | |
103 | ||
8c84a5de | 104 | gfc_option.fpe = 0; |
553e7cef | 105 | /* All except GFC_FPE_INEXACT. */ |
106 | gfc_option.fpe_summary = GFC_FPE_INVALID | GFC_FPE_DENORMAL | |
107 | | GFC_FPE_ZERO | GFC_FPE_OVERFLOW | |
108 | | GFC_FPE_UNDERFLOW; | |
ad8ed98e | 109 | gfc_option.rtcheck = 0; |
8c84a5de | 110 | |
45e6f6f0 | 111 | /* ??? Wmissing-include-dirs is disabled by default in C/C++ but |
112 | enabled by default in Fortran. Ideally, we should express this | |
113 | in .opt, but that is not supported yet. */ | |
114 | if (!global_options_set.x_cpp_warn_missing_include_dirs) | |
7082509e | 115 | global_options.x_cpp_warn_missing_include_dirs = 1; |
45e6f6f0 | 116 | |
83a65a0d | 117 | set_default_std_flags (); |
4ee9c684 | 118 | |
2ecc6bc5 | 119 | /* Initialize cpp-related options. */ |
e88d34f6 | 120 | gfc_cpp_init_options (decoded_options_count, decoded_options); |
dc8078a3 | 121 | gfc_diagnostics_init (); |
4ee9c684 | 122 | } |
123 | ||
124 | ||
8594da07 | 125 | /* Determine the source form from the filename extension. We assume |
126 | case insensitivity. */ | |
127 | ||
128 | static gfc_source_form | |
129 | form_from_filename (const char *filename) | |
130 | { | |
8594da07 | 131 | static const struct |
132 | { | |
133 | const char *extension; | |
134 | gfc_source_form form; | |
135 | } | |
136 | exttype[] = | |
137 | { | |
138 | { | |
139 | ".f90", FORM_FREE} | |
140 | , | |
141 | { | |
142 | ".f95", FORM_FREE} | |
143 | , | |
144 | { | |
f30a3c31 | 145 | ".f03", FORM_FREE} |
146 | , | |
147 | { | |
ff4425cf | 148 | ".f08", FORM_FREE} |
149 | , | |
150 | { | |
8594da07 | 151 | ".f", FORM_FIXED} |
152 | , | |
153 | { | |
154 | ".for", FORM_FIXED} | |
155 | , | |
156 | { | |
ed19cf5f | 157 | ".ftn", FORM_FIXED} |
158 | , | |
159 | { | |
8594da07 | 160 | "", FORM_UNKNOWN} |
161 | }; /* sentinel value */ | |
162 | ||
163 | gfc_source_form f_form; | |
164 | const char *fileext; | |
165 | int i; | |
166 | ||
167 | /* Find end of file name. Note, filename is either a NULL pointer or | |
168 | a NUL terminated string. */ | |
169 | i = 0; | |
170 | while (filename[i] != '\0') | |
171 | i++; | |
172 | ||
173 | /* Find last period. */ | |
174 | while (i >= 0 && (filename[i] != '.')) | |
175 | i--; | |
176 | ||
177 | /* Did we see a file extension? */ | |
178 | if (i < 0) | |
179 | return FORM_UNKNOWN; /* Nope */ | |
180 | ||
181 | /* Get file extension and compare it to others. */ | |
182 | fileext = &(filename[i]); | |
183 | ||
184 | i = -1; | |
185 | f_form = FORM_UNKNOWN; | |
186 | do | |
187 | { | |
188 | i++; | |
189 | if (strcasecmp (fileext, exttype[i].extension) == 0) | |
190 | { | |
191 | f_form = exttype[i].form; | |
192 | break; | |
193 | } | |
194 | } | |
195 | while (exttype[i].form != FORM_UNKNOWN); | |
196 | ||
197 | return f_form; | |
198 | } | |
199 | ||
200 | ||
4ee9c684 | 201 | /* Finalize commandline options. */ |
202 | ||
203 | bool | |
204 | gfc_post_options (const char **pfilename) | |
205 | { | |
9e3a9b8b | 206 | const char *filename = *pfilename, *canon_source_file = NULL; |
a0d72493 | 207 | char *source_path; |
208 | int i; | |
4ee9c684 | 209 | |
c6418a4e | 210 | /* Excess precision other than "fast" requires front-end |
211 | support. */ | |
212 | if (flag_excess_precision_cmdline == EXCESS_PRECISION_STANDARD | |
213 | && TARGET_FLT_EVAL_METHOD_NON_DEFAULT) | |
214 | sorry ("-fexcess-precision=standard for Fortran"); | |
215 | flag_excess_precision_cmdline = EXCESS_PRECISION_FAST; | |
216 | ||
fb063c92 | 217 | /* Fortran allows associative math - but we cannot reassociate if |
218 | we want traps or signed zeros. Cf. also flag_protect_parens. */ | |
219 | if (flag_associative_math == -1) | |
220 | flag_associative_math = (!flag_trapping_math && !flag_signed_zeros); | |
221 | ||
eb106faf | 222 | if (flag_protect_parens == -1) |
223 | flag_protect_parens = !optimize_fast; | |
9d4ede2c | 224 | |
eb106faf | 225 | if (flag_stack_arrays == -1) |
226 | flag_stack_arrays = optimize_fast; | |
9e412fd2 | 227 | |
929c6f45 | 228 | /* By default, disable (re)allocation during assignment for -std=f95, |
293d72e0 | 229 | and enable it for F2003/F2008/GNU/Legacy. */ |
eb106faf | 230 | if (flag_realloc_lhs == -1) |
929c6f45 | 231 | { |
232 | if (gfc_option.allow_std & GFC_STD_F2003) | |
eb106faf | 233 | flag_realloc_lhs = 1; |
929c6f45 | 234 | else |
eb106faf | 235 | flag_realloc_lhs = 0; |
929c6f45 | 236 | } |
237 | ||
ad8ed98e | 238 | /* -fbounds-check is equivalent to -fcheck=bounds */ |
239 | if (flag_bounds_check) | |
240 | gfc_option.rtcheck |= GFC_RTCHECK_BOUNDS; | |
241 | ||
71278019 | 242 | if (flag_compare_debug) |
829d7a08 | 243 | flag_dump_fortran_original = 0; |
71278019 | 244 | |
566d7c74 | 245 | /* Make -fmax-errors visible to gfortran's diagnostic machinery. */ |
246 | if (global_options_set.x_flag_max_errors) | |
247 | gfc_option.max_errors = flag_max_errors; | |
248 | ||
4ee9c684 | 249 | /* Verify the input file name. */ |
250 | if (!filename || strcmp (filename, "-") == 0) | |
251 | { | |
252 | filename = ""; | |
253 | } | |
254 | ||
9e3a9b8b | 255 | if (gfc_option.flag_preprocessed) |
256 | { | |
257 | /* For preprocessed files, if the first tokens are of the form # NUM. | |
258 | handle the directives so we know the original file name. */ | |
259 | gfc_source_file = gfc_read_orig_filename (filename, &canon_source_file); | |
260 | if (gfc_source_file == NULL) | |
261 | gfc_source_file = filename; | |
262 | else | |
263 | *pfilename = gfc_source_file; | |
264 | } | |
265 | else | |
266 | gfc_source_file = filename; | |
267 | ||
268 | if (canon_source_file == NULL) | |
269 | canon_source_file = gfc_source_file; | |
8594da07 | 270 | |
a0d72493 | 271 | /* Adds the path where the source file is to the list of include files. */ |
272 | ||
9e3a9b8b | 273 | i = strlen (canon_source_file); |
274 | while (i > 0 && !IS_DIR_SEPARATOR (canon_source_file[i])) | |
a0d72493 | 275 | i--; |
1bcc6eb8 | 276 | |
a0d72493 | 277 | if (i != 0) |
278 | { | |
48d8ad5a | 279 | source_path = (char *) alloca (i + 1); |
9e3a9b8b | 280 | memcpy (source_path, canon_source_file, i); |
a0d72493 | 281 | source_path[i] = 0; |
db24420f | 282 | gfc_add_include_path (source_path, true, true, true); |
a0d72493 | 283 | } |
284 | else | |
db24420f | 285 | gfc_add_include_path (".", true, true, true); |
a0d72493 | 286 | |
9e3a9b8b | 287 | if (canon_source_file != gfc_source_file) |
434f0922 | 288 | free (CONST_CAST (char *, canon_source_file)); |
9e3a9b8b | 289 | |
8594da07 | 290 | /* Decide which form the file will be read in as. */ |
291 | ||
292 | if (gfc_option.source_form != FORM_UNKNOWN) | |
293 | gfc_current_form = gfc_option.source_form; | |
294 | else | |
295 | { | |
296 | gfc_current_form = form_from_filename (filename); | |
297 | ||
298 | if (gfc_current_form == FORM_UNKNOWN) | |
299 | { | |
300 | gfc_current_form = FORM_FREE; | |
6f521718 | 301 | gfc_warning_now (0, "Reading file %qs as free form", |
bf79c656 | 302 | (filename[0] == '\0') ? "<stdin>" : filename); |
8594da07 | 303 | } |
304 | } | |
305 | ||
306 | /* If the user specified -fd-lines-as-{code|comments} verify that we're | |
307 | in fixed form. */ | |
308 | if (gfc_current_form == FORM_FREE) | |
309 | { | |
310 | if (gfc_option.flag_d_lines == 0) | |
6f521718 | 311 | gfc_warning_now (0, "%<-fd-lines-as-comments%> has no effect " |
399c003f | 312 | "in free form"); |
8594da07 | 313 | else if (gfc_option.flag_d_lines == 1) |
6f521718 | 314 | gfc_warning_now (0, "%<-fd-lines-as-code%> has no effect in free form"); |
bf1857ff | 315 | |
316 | if (warn_line_truncation == -1) | |
317 | warn_line_truncation = 1; | |
318 | ||
319 | /* Enable -Werror=line-truncation when -Werror and -Wno-error have | |
320 | not been set. */ | |
321 | if (warn_line_truncation && !global_options_set.x_warnings_are_errors | |
322 | && (global_dc->classify_diagnostic[OPT_Wline_truncation] == | |
323 | DK_UNSPECIFIED)) | |
324 | diagnostic_classify_diagnostic (global_dc, OPT_Wline_truncation, | |
325 | DK_ERROR, UNKNOWN_LOCATION); | |
8594da07 | 326 | } |
bf1857ff | 327 | else if (warn_line_truncation == -1) |
328 | warn_line_truncation = 0; | |
4ee9c684 | 329 | |
675e3934 | 330 | /* If -pedantic, warn about the use of GNU extensions. */ |
331 | if (pedantic && (gfc_option.allow_std & GFC_STD_GNU) != 0) | |
332 | gfc_option.warn_std |= GFC_STD_GNU; | |
c667e11d | 333 | /* -std=legacy -pedantic is effectively -std=gnu. */ |
334 | if (pedantic && (gfc_option.allow_std & GFC_STD_LEGACY) != 0) | |
335 | gfc_option.warn_std |= GFC_STD_F95_OBS | GFC_STD_F95_DEL | GFC_STD_LEGACY; | |
675e3934 | 336 | |
bdaed7d2 | 337 | /* If the user didn't explicitly specify -f(no)-second-underscore we |
338 | use it if we're trying to be compatible with f2c, and not | |
339 | otherwise. */ | |
eb106faf | 340 | if (flag_second_underscore == -1) |
829d7a08 | 341 | flag_second_underscore = flag_f2c; |
bdaed7d2 | 342 | |
829d7a08 | 343 | if (!flag_automatic && flag_max_stack_var_size != -2 |
eb106faf | 344 | && flag_max_stack_var_size != 0) |
6f521718 | 345 | gfc_warning_now (0, "Flag %<-fno-automatic%> overwrites %<-fmax-stack-var-size=%d%>", |
eb106faf | 346 | flag_max_stack_var_size); |
829d7a08 | 347 | else if (!flag_automatic && flag_recursive) |
6f521718 | 348 | gfc_warning_now (0, "Flag %<-fno-automatic%> overwrites %<-frecursive%>"); |
829d7a08 | 349 | else if (!flag_automatic && flag_openmp) |
6f521718 | 350 | gfc_warning_now (0, "Flag %<-fno-automatic%> overwrites %<-frecursive%> implied by " |
eb106faf | 351 | "%<-fopenmp%>"); |
829d7a08 | 352 | else if (flag_max_stack_var_size != -2 && flag_recursive) |
6f521718 | 353 | gfc_warning_now (0, "Flag %<-frecursive%> overwrites %<-fmax-stack-var-size=%d%>", |
eb106faf | 354 | flag_max_stack_var_size); |
829d7a08 | 355 | else if (flag_max_stack_var_size != -2 && flag_openmp) |
6f521718 | 356 | gfc_warning_now (0, "Flag %<-fmax-stack-var-size=%d%> overwrites %<-frecursive%> " |
eb106faf | 357 | "implied by %<-fopenmp%>", flag_max_stack_var_size); |
14af4f75 | 358 | |
a7bdd774 | 359 | /* Implement -frecursive as -fmax-stack-var-size=-1. */ |
829d7a08 | 360 | if (flag_recursive) |
eb106faf | 361 | flag_max_stack_var_size = -1; |
14af4f75 | 362 | |
a7bdd774 | 363 | /* Implied -frecursive; implemented as -fmax-stack-var-size=-1. */ |
829d7a08 | 364 | if (flag_max_stack_var_size == -2 && flag_openmp && flag_automatic) |
a7bdd774 | 365 | { |
829d7a08 | 366 | flag_recursive = 1; |
eb106faf | 367 | flag_max_stack_var_size = -1; |
a7bdd774 | 368 | } |
369 | ||
14af4f75 | 370 | /* Set default. */ |
eb106faf | 371 | if (flag_max_stack_var_size == -2) |
372 | flag_max_stack_var_size = 32768; | |
14af4f75 | 373 | |
7f2e183b | 374 | /* Implement -fno-automatic as -fmax-stack-var-size=0. */ |
829d7a08 | 375 | if (!flag_automatic) |
eb106faf | 376 | flag_max_stack_var_size = 0; |
e27238e0 | 377 | |
08f351fd | 378 | /* If we call BLAS directly, only inline up to the BLAS limit. */ |
379 | ||
380 | if (flag_external_blas && flag_inline_matmul_limit < 0) | |
381 | flag_inline_matmul_limit = flag_blas_matmul_limit; | |
382 | ||
10b2bb30 | 383 | /* Optimization implies front end optimization, unless the user |
384 | specified it directly. */ | |
385 | ||
eb106faf | 386 | if (flag_frontend_optimize == -1) |
387 | flag_frontend_optimize = optimize; | |
388 | ||
829d7a08 | 389 | if (flag_max_array_constructor < 65535) |
390 | flag_max_array_constructor = 65535; | |
391 | ||
eb106faf | 392 | if (flag_fixed_line_length != 0 && flag_fixed_line_length < 7) |
393 | gfc_fatal_error ("Fixed line length must be at least seven"); | |
394 | ||
395 | if (flag_free_line_length != 0 && flag_free_line_length < 4) | |
396 | gfc_fatal_error ("Free line length must be at least three"); | |
397 | ||
398 | if (flag_max_subrecord_length > MAX_SUBRECORD_LENGTH) | |
399 | gfc_fatal_error ("Maximum subrecord length cannot exceed %d", | |
400 | MAX_SUBRECORD_LENGTH); | |
10b2bb30 | 401 | |
2ecc6bc5 | 402 | gfc_cpp_post_options (); |
403 | ||
f36f9b8b | 404 | if (gfc_option.allow_std & GFC_STD_F2008) |
405 | lang_hooks.name = "GNU Fortran2008"; | |
406 | else if (gfc_option.allow_std & GFC_STD_F2003) | |
407 | lang_hooks.name = "GNU Fortran2003"; | |
408 | ||
c7a63538 | 409 | return gfc_cpp_preprocess_only (); |
4ee9c684 | 410 | } |
411 | ||
412 | ||
4ee9c684 | 413 | static void |
414 | gfc_handle_module_path_options (const char *arg) | |
415 | { | |
416 | ||
417 | if (gfc_option.module_dir != NULL) | |
c4facd47 | 418 | gfc_fatal_error ("gfortran: Only one %<-J%> option allowed"); |
4ee9c684 | 419 | |
dfa3fb6a | 420 | gfc_option.module_dir = XCNEWVEC (char, strlen (arg) + 2); |
4ee9c684 | 421 | strcpy (gfc_option.module_dir, arg); |
3dc083ce | 422 | |
db24420f | 423 | gfc_add_include_path (gfc_option.module_dir, true, false, true); |
e500aeee | 424 | |
425 | strcat (gfc_option.module_dir, "/"); | |
4ee9c684 | 426 | } |
427 | ||
1bcc6eb8 | 428 | |
553e7cef | 429 | /* Handle options -ffpe-trap= and -ffpe-summary=. */ |
430 | ||
8c84a5de | 431 | static void |
553e7cef | 432 | gfc_handle_fpe_option (const char *arg, bool trap) |
8c84a5de | 433 | { |
434 | int result, pos = 0, n; | |
98b28ab6 | 435 | /* precision is a backwards compatibility alias for inexact. */ |
8c84a5de | 436 | static const char * const exception[] = { "invalid", "denormal", "zero", |
1bcc6eb8 | 437 | "overflow", "underflow", |
98b28ab6 | 438 | "inexact", "precision", NULL }; |
8c84a5de | 439 | static const int opt_exception[] = { GFC_FPE_INVALID, GFC_FPE_DENORMAL, |
440 | GFC_FPE_ZERO, GFC_FPE_OVERFLOW, | |
98b28ab6 | 441 | GFC_FPE_UNDERFLOW, GFC_FPE_INEXACT, |
442 | GFC_FPE_INEXACT, | |
8c84a5de | 443 | 0 }; |
553e7cef | 444 | |
293d72e0 | 445 | /* As the default for -ffpe-summary= is nonzero, set it to 0. */ |
553e7cef | 446 | if (!trap) |
447 | gfc_option.fpe_summary = 0; | |
448 | ||
8c84a5de | 449 | while (*arg) |
450 | { | |
451 | while (*arg == ',') | |
452 | arg++; | |
1bcc6eb8 | 453 | |
8c84a5de | 454 | while (arg[pos] && arg[pos] != ',') |
455 | pos++; | |
1bcc6eb8 | 456 | |
8c84a5de | 457 | result = 0; |
553e7cef | 458 | if (!trap && strncmp ("none", arg, pos) == 0) |
8c84a5de | 459 | { |
553e7cef | 460 | gfc_option.fpe_summary = 0; |
461 | arg += pos; | |
462 | pos = 0; | |
463 | continue; | |
464 | } | |
465 | else if (!trap && strncmp ("all", arg, pos) == 0) | |
466 | { | |
467 | gfc_option.fpe_summary = GFC_FPE_INVALID | GFC_FPE_DENORMAL | |
468 | | GFC_FPE_ZERO | GFC_FPE_OVERFLOW | |
469 | | GFC_FPE_UNDERFLOW | GFC_FPE_INEXACT; | |
470 | arg += pos; | |
471 | pos = 0; | |
472 | continue; | |
473 | } | |
474 | else | |
475 | for (n = 0; exception[n] != NULL; n++) | |
476 | { | |
8c84a5de | 477 | if (exception[n] && strncmp (exception[n], arg, pos) == 0) |
478 | { | |
553e7cef | 479 | if (trap) |
480 | gfc_option.fpe |= opt_exception[n]; | |
481 | else | |
482 | gfc_option.fpe_summary |= opt_exception[n]; | |
8c84a5de | 483 | arg += pos; |
484 | pos = 0; | |
485 | result = 1; | |
486 | break; | |
487 | } | |
553e7cef | 488 | } |
489 | if (!result && !trap) | |
c4facd47 | 490 | gfc_fatal_error ("Argument to %<-ffpe-trap%> is not valid: %s", arg); |
553e7cef | 491 | else if (!result) |
c4facd47 | 492 | gfc_fatal_error ("Argument to %<-ffpe-summary%> is not valid: %s", arg); |
553e7cef | 493 | |
8c84a5de | 494 | } |
495 | } | |
496 | ||
1bcc6eb8 | 497 | |
ad8ed98e | 498 | static void |
499 | gfc_handle_runtime_check_option (const char *arg) | |
500 | { | |
501 | int result, pos = 0, n; | |
502 | static const char * const optname[] = { "all", "bounds", "array-temps", | |
3a60b071 | 503 | "recursion", "do", "pointer", |
504 | "mem", NULL }; | |
ad8ed98e | 505 | static const int optmask[] = { GFC_RTCHECK_ALL, GFC_RTCHECK_BOUNDS, |
506 | GFC_RTCHECK_ARRAY_TEMPS, | |
7f1bd03f | 507 | GFC_RTCHECK_RECURSION, GFC_RTCHECK_DO, |
3a60b071 | 508 | GFC_RTCHECK_POINTER, GFC_RTCHECK_MEM, |
ad8ed98e | 509 | 0 }; |
510 | ||
511 | while (*arg) | |
512 | { | |
513 | while (*arg == ',') | |
514 | arg++; | |
515 | ||
516 | while (arg[pos] && arg[pos] != ',') | |
517 | pos++; | |
518 | ||
519 | result = 0; | |
520 | for (n = 0; optname[n] != NULL; n++) | |
521 | { | |
522 | if (optname[n] && strncmp (optname[n], arg, pos) == 0) | |
523 | { | |
524 | gfc_option.rtcheck |= optmask[n]; | |
525 | arg += pos; | |
526 | pos = 0; | |
527 | result = 1; | |
528 | break; | |
529 | } | |
530 | } | |
531 | if (!result) | |
c4facd47 | 532 | gfc_fatal_error ("Argument to %<-fcheck%> is not valid: %s", arg); |
ad8ed98e | 533 | } |
534 | } | |
535 | ||
536 | ||
4ee9c684 | 537 | /* Handle command-line options. Returns 0 if unrecognized, 1 if |
538 | recognized and handled. */ | |
1bcc6eb8 | 539 | |
b78351e5 | 540 | bool |
1f3db819 | 541 | gfc_handle_option (size_t scode, const char *arg, int value, |
3c6c0e40 | 542 | int kind ATTRIBUTE_UNUSED, location_t loc ATTRIBUTE_UNUSED, |
b78351e5 | 543 | const struct cl_option_handlers *handlers ATTRIBUTE_UNUSED) |
4ee9c684 | 544 | { |
b78351e5 | 545 | bool result = true; |
4ee9c684 | 546 | enum opt_code code = (enum opt_code) scode; |
547 | ||
2ecc6bc5 | 548 | if (gfc_cpp_handle_option (scode, arg, value) == 1) |
b78351e5 | 549 | return true; |
2ecc6bc5 | 550 | |
4ee9c684 | 551 | switch (code) |
552 | { | |
553 | default: | |
45e6f6f0 | 554 | if (cl_options[code].flags & gfc_option_lang_mask ()) |
555 | break; | |
b78351e5 | 556 | result = false; |
4ee9c684 | 557 | break; |
558 | ||
da6ffc6d | 559 | case OPT_fcheck_array_temporaries: |
ad8ed98e | 560 | gfc_option.rtcheck |= GFC_RTCHECK_ARRAY_TEMPS; |
da6ffc6d | 561 | break; |
562 | ||
8594da07 | 563 | case OPT_fd_lines_as_code: |
564 | gfc_option.flag_d_lines = 1; | |
565 | break; | |
566 | ||
567 | case OPT_fd_lines_as_comments: | |
568 | gfc_option.flag_d_lines = 0; | |
569 | break; | |
570 | ||
4ee9c684 | 571 | case OPT_ffixed_form: |
572 | gfc_option.source_form = FORM_FIXED; | |
573 | break; | |
574 | ||
575 | case OPT_ffree_form: | |
576 | gfc_option.source_form = FORM_FREE; | |
577 | break; | |
578 | ||
9a61fba1 | 579 | case OPT_static_libgfortran: |
580 | #ifndef HAVE_LD_STATIC_DYNAMIC | |
c4facd47 | 581 | gfc_fatal_error ("%<-static-libgfortran%> is not supported in this " |
9a61fba1 | 582 | "configuration"); |
583 | #endif | |
584 | break; | |
585 | ||
99227731 | 586 | case OPT_fintrinsic_modules_path: |
7cb1cb52 | 587 | case OPT_fintrinsic_modules_path_: |
db24420f | 588 | |
589 | /* This is needed because omp_lib.h is in a directory together | |
590 | with intrinsic modules. Do no warn because during testing | |
591 | without an installed compiler, we would get lots of bogus | |
592 | warnings for a missing include directory. */ | |
593 | gfc_add_include_path (arg, false, false, false); | |
594 | ||
99227731 | 595 | gfc_add_intrinsic_modules_path (arg); |
596 | break; | |
597 | ||
9e3a9b8b | 598 | case OPT_fpreprocessed: |
599 | gfc_option.flag_preprocessed = value; | |
600 | break; | |
601 | ||
4ee9c684 | 602 | case OPT_fmax_identifier_length_: |
603 | if (value > GFC_MAX_SYMBOL_LEN) | |
b71883de | 604 | gfc_fatal_error ("Maximum supported identifier length is %d", |
4ee9c684 | 605 | GFC_MAX_SYMBOL_LEN); |
606 | gfc_option.max_identifier_length = value; | |
607 | break; | |
608 | ||
a28eb9a8 | 609 | case OPT_finit_local_zero: |
610 | gfc_option.flag_init_integer = GFC_INIT_INTEGER_ON; | |
611 | gfc_option.flag_init_integer_value = 0; | |
4fe73152 | 612 | flag_init_real = GFC_INIT_REAL_ZERO; |
a28eb9a8 | 613 | gfc_option.flag_init_logical = GFC_INIT_LOGICAL_FALSE; |
614 | gfc_option.flag_init_character = GFC_INIT_CHARACTER_ON; | |
615 | gfc_option.flag_init_character_value = (char)0; | |
616 | break; | |
617 | ||
618 | case OPT_finit_logical_: | |
619 | if (!strcasecmp (arg, "false")) | |
620 | gfc_option.flag_init_logical = GFC_INIT_LOGICAL_FALSE; | |
621 | else if (!strcasecmp (arg, "true")) | |
622 | gfc_option.flag_init_logical = GFC_INIT_LOGICAL_TRUE; | |
623 | else | |
c4facd47 | 624 | gfc_fatal_error ("Unrecognized option to %<-finit-logical%>: %s", |
a28eb9a8 | 625 | arg); |
626 | break; | |
627 | ||
a28eb9a8 | 628 | case OPT_finit_integer_: |
629 | gfc_option.flag_init_integer = GFC_INIT_INTEGER_ON; | |
630 | gfc_option.flag_init_integer_value = atoi (arg); | |
631 | break; | |
632 | ||
633 | case OPT_finit_character_: | |
634 | if (value >= 0 && value <= 127) | |
635 | { | |
636 | gfc_option.flag_init_character = GFC_INIT_CHARACTER_ON; | |
637 | gfc_option.flag_init_character_value = (char)value; | |
638 | } | |
639 | else | |
c4facd47 | 640 | gfc_fatal_error ("The value of n in %<-finit-character=n%> must be " |
a28eb9a8 | 641 | "between 0 and 127"); |
642 | break; | |
643 | ||
4ee9c684 | 644 | case OPT_I: |
db24420f | 645 | gfc_add_include_path (arg, true, false, true); |
4ee9c684 | 646 | break; |
647 | ||
648 | case OPT_J: | |
4ee9c684 | 649 | gfc_handle_module_path_options (arg); |
ca9ccc0d | 650 | break; |
db96818c | 651 | |
8c84a5de | 652 | case OPT_ffpe_trap_: |
553e7cef | 653 | gfc_handle_fpe_option (arg, true); |
654 | break; | |
655 | ||
656 | case OPT_ffpe_summary_: | |
657 | gfc_handle_fpe_option (arg, false); | |
8c84a5de | 658 | break; |
659 | ||
4ee9c684 | 660 | case OPT_std_f95: |
a3b81b0f | 661 | gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F95 | GFC_STD_F77 |
662 | | GFC_STD_F2008_OBS; | |
4ee9c684 | 663 | gfc_option.warn_std = GFC_STD_F95_OBS; |
766398ac | 664 | gfc_option.max_continue_fixed = 19; |
665 | gfc_option.max_continue_free = 39; | |
4ee9c684 | 666 | gfc_option.max_identifier_length = 31; |
8290d53f | 667 | warn_ampersand = 1; |
638664b8 | 668 | warn_tabs = 1; |
4ee9c684 | 669 | break; |
670 | ||
671 | case OPT_std_f2003: | |
d6583a5f | 672 | gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F77 |
a3b81b0f | 673 | | GFC_STD_F2003 | GFC_STD_F95 | GFC_STD_F2008_OBS; |
d6583a5f | 674 | gfc_option.warn_std = GFC_STD_F95_OBS; |
4ee9c684 | 675 | gfc_option.max_identifier_length = 63; |
8290d53f | 676 | warn_ampersand = 1; |
638664b8 | 677 | warn_tabs = 1; |
4ee9c684 | 678 | break; |
679 | ||
ff4425cf | 680 | case OPT_std_f2008: |
681 | gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F77 | |
a3b81b0f | 682 | | GFC_STD_F2003 | GFC_STD_F95 | GFC_STD_F2008 | GFC_STD_F2008_OBS; |
683 | gfc_option.warn_std = GFC_STD_F95_OBS | GFC_STD_F2008_OBS; | |
ff4425cf | 684 | gfc_option.max_identifier_length = 63; |
8290d53f | 685 | warn_ampersand = 1; |
638664b8 | 686 | warn_tabs = 1; |
ff4425cf | 687 | break; |
688 | ||
d976af8e | 689 | case OPT_std_f2008ts: |
495e197c | 690 | gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F77 |
691 | | GFC_STD_F2003 | GFC_STD_F95 | GFC_STD_F2008 | GFC_STD_F2008_OBS | |
d976af8e | 692 | | GFC_STD_F2008_TS; |
495e197c | 693 | gfc_option.warn_std = GFC_STD_F95_OBS | GFC_STD_F2008_OBS; |
694 | gfc_option.max_identifier_length = 63; | |
8290d53f | 695 | warn_ampersand = 1; |
638664b8 | 696 | warn_tabs = 1; |
495e197c | 697 | break; |
698 | ||
4ee9c684 | 699 | case OPT_std_gnu: |
83a65a0d | 700 | set_default_std_flags (); |
c667e11d | 701 | break; |
702 | ||
703 | case OPT_std_legacy: | |
83a65a0d | 704 | set_default_std_flags (); |
c667e11d | 705 | gfc_option.warn_std = 0; |
d6583a5f | 706 | break; |
707 | ||
3b6a4b41 | 708 | case OPT_fshort_enums: |
4aafe913 | 709 | /* Handled in language-independent code. */ |
3b6a4b41 | 710 | break; |
15774a8b | 711 | |
ad8ed98e | 712 | case OPT_fcheck_: |
713 | gfc_handle_runtime_check_option (arg); | |
714 | break; | |
4ee9c684 | 715 | } |
716 | ||
d3b7ee7c | 717 | Fortran_handle_option_auto (&global_options, &global_options_set, |
718 | scode, arg, value, | |
719 | gfc_option_lang_mask (), kind, | |
720 | loc, handlers, global_dc); | |
4ee9c684 | 721 | return result; |
722 | } | |
e3d1ab2b | 723 | |
724 | ||
725 | /* Return a string with the options passed to the compiler; used for | |
726 | Fortran's compiler_options() intrinsic. */ | |
727 | ||
728 | char * | |
729 | gfc_get_option_string (void) | |
730 | { | |
731 | unsigned j; | |
732 | size_t len, pos; | |
733 | char *result; | |
734 | ||
90acbb6e | 735 | /* Allocate and return a one-character string with '\0'. */ |
736 | if (!save_decoded_options_count) | |
737 | return XCNEWVEC (char, 1); | |
738 | ||
e3d1ab2b | 739 | /* Determine required string length. */ |
740 | ||
741 | len = 0; | |
742 | for (j = 1; j < save_decoded_options_count; j++) | |
743 | { | |
744 | switch (save_decoded_options[j].opt_index) | |
745 | { | |
746 | case OPT_o: | |
747 | case OPT_d: | |
748 | case OPT_dumpbase: | |
749 | case OPT_dumpdir: | |
750 | case OPT_auxbase: | |
751 | case OPT_quiet: | |
752 | case OPT_version: | |
753 | case OPT_fintrinsic_modules_path: | |
7cb1cb52 | 754 | case OPT_fintrinsic_modules_path_: |
e3d1ab2b | 755 | /* Ignore these. */ |
756 | break; | |
757 | default: | |
293d72e0 | 758 | /* Ignore file names. */ |
e3d1ab2b | 759 | if (save_decoded_options[j].orig_option_with_args_text[0] == '-') |
760 | len += 1 | |
761 | + strlen (save_decoded_options[j].orig_option_with_args_text); | |
762 | } | |
763 | } | |
764 | ||
dfa3fb6a | 765 | result = XCNEWVEC (char, len); |
e3d1ab2b | 766 | |
767 | pos = 0; | |
768 | for (j = 1; j < save_decoded_options_count; j++) | |
769 | { | |
770 | switch (save_decoded_options[j].opt_index) | |
771 | { | |
772 | case OPT_o: | |
773 | case OPT_d: | |
774 | case OPT_dumpbase: | |
775 | case OPT_dumpdir: | |
776 | case OPT_auxbase: | |
777 | case OPT_quiet: | |
778 | case OPT_version: | |
779 | case OPT_fintrinsic_modules_path: | |
7cb1cb52 | 780 | case OPT_fintrinsic_modules_path_: |
e3d1ab2b | 781 | /* Ignore these. */ |
782 | continue; | |
783 | ||
784 | case OPT_cpp_: | |
785 | /* Use "-cpp" rather than "-cpp=<temporary file>". */ | |
786 | len = 4; | |
787 | break; | |
788 | ||
789 | default: | |
293d72e0 | 790 | /* Ignore file names. */ |
e3d1ab2b | 791 | if (save_decoded_options[j].orig_option_with_args_text[0] != '-') |
792 | continue; | |
793 | ||
794 | len = strlen (save_decoded_options[j].orig_option_with_args_text); | |
795 | } | |
796 | ||
797 | memcpy (&result[pos], save_decoded_options[j].orig_option_with_args_text, len); | |
798 | pos += len; | |
799 | result[pos++] = ' '; | |
800 | } | |
801 | ||
802 | result[--pos] = '\0'; | |
803 | return result; | |
804 | } |