1 /* Parse and display command line options.
2 Copyright (C) 2000, 2001, 2002, 2003, 2004 Free Software Foundation,
4 Contributed by Andy Vaught
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation; either version 2, or (at your option) any later
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING. If not, write to the Free
20 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
28 #include "coretypes.h"
34 #include "tree-inline.h"
38 gfc_option_t gfc_option;
41 /* Get ready for options handling. */
44 gfc_init_options (unsigned int argc ATTRIBUTE_UNUSED,
45 const char **argv ATTRIBUTE_UNUSED)
48 gfc_option.source = NULL;
49 gfc_option.module_dir = NULL;
50 gfc_option.source_form = FORM_UNKNOWN;
51 gfc_option.fixed_line_length = 72;
52 gfc_option.max_identifier_length = GFC_MAX_SYMBOL_LEN;
53 gfc_option.verbose = 0;
55 gfc_option.warn_aliasing = 0;
56 gfc_option.warn_conversion = 0;
57 gfc_option.warn_implicit_interface = 0;
58 gfc_option.warn_line_truncation = 0;
59 gfc_option.warn_underflow = 1;
60 gfc_option.warn_surprising = 0;
61 gfc_option.warn_unused_labels = 0;
63 gfc_option.flag_dollar_ok = 0;
64 gfc_option.flag_underscoring = 1;
65 gfc_option.flag_second_underscore = 1;
66 gfc_option.flag_implicit_none = 0;
67 gfc_option.flag_max_stack_var_size = 32768;
68 gfc_option.flag_module_access_private = 0;
69 gfc_option.flag_no_backend = 0;
70 gfc_option.flag_pack_derived = 0;
71 gfc_option.flag_repack_arrays = 0;
73 gfc_option.q_kind = gfc_default_double_kind ();
78 flag_argument_noalias = 2;
80 gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F95_DEL
81 | GFC_STD_F2003_OBS | GFC_STD_F2003_DEL | GFC_STD_F2003 | GFC_STD_GNU;
82 gfc_option.warn_std = GFC_STD_F95_OBS | GFC_STD_F95_DEL
83 | GFC_STD_F2003 | GFC_STD_GNU;
89 /* Finalize commandline options. */
92 gfc_post_options (const char **pfilename)
94 const char *filename = *pfilename;
96 /* Verify the input file name. */
97 if (!filename || strcmp (filename, "-") == 0)
102 gfc_option.source = filename;
104 flag_inline_trees = 1;
106 /* Use tree inlining. */
109 if (flag_inline_functions)
111 flag_inline_trees = 2;
112 flag_inline_functions = 0;
119 /* Set the options for -Wall. */
125 gfc_option.warn_aliasing = 1;
126 gfc_option.warn_line_truncation = 1;
127 gfc_option.warn_underflow = 1;
128 gfc_option.warn_surprising = 1;
129 gfc_option.warn_unused_labels = 1;
132 warn_return_type = 1;
135 /* We save the value of warn_uninitialized, since if they put
136 -Wuninitialized on the command line, we need to generate a
137 warning about not using it without also specifying -O. */
139 if (warn_uninitialized != 1)
140 warn_uninitialized = 2;
145 gfc_handle_module_path_options (const char *arg)
148 if (gfc_option.module_dir != NULL)
150 gfc_status ("gfortran: Only one -M option allowed\n");
156 gfc_status ("gfortran: Directory required after -M\n");
160 gfc_option.module_dir = (char *) gfc_getmem (strlen (arg) + 2);
161 strcpy (gfc_option.module_dir, arg);
162 strcat (gfc_option.module_dir, "/");
165 /* Handle command-line options. Returns 0 if unrecognized, 1 if
166 recognized and handled. */
168 gfc_handle_option (size_t scode, const char *arg, int value)
171 enum opt_code code = (enum opt_code) scode;
173 /* Ignore file names. */
188 gfc_option.warn_aliasing = value;
191 case OPT_Wconversion:
192 gfc_option.warn_conversion = value;
195 case OPT_Wimplicit_interface:
196 gfc_option.warn_implicit_interface = value;
199 case OPT_Wline_truncation:
200 gfc_option.warn_line_truncation = value;
204 gfc_option.warn_underflow = value;
207 case OPT_Wsurprising:
208 gfc_option.warn_surprising = value;
211 case OPT_Wunused_labels:
212 gfc_option.warn_unused_labels = value;
216 gfc_option.flag_dollar_ok = value;
219 case OPT_fdump_parse_tree:
220 gfc_option.verbose = value;
223 case OPT_ffixed_form:
224 gfc_option.source_form = FORM_FIXED;
228 gfc_option.source_form = FORM_FREE;
231 case OPT_funderscoring:
232 gfc_option.flag_underscoring = value;
235 case OPT_fsecond_underscore:
236 gfc_option.flag_second_underscore = value;
239 case OPT_fimplicit_none:
240 gfc_option.flag_implicit_none = value;
243 case OPT_fmax_stack_var_size_:
244 gfc_option.flag_max_stack_var_size = value;
247 case OPT_fmodule_private:
248 gfc_option.flag_module_access_private = value;
251 case OPT_fno_backend:
252 gfc_option.flag_no_backend = value;
255 case OPT_fpack_derived:
256 gfc_option.flag_pack_derived = value;
259 case OPT_frepack_arrays:
260 gfc_option.flag_repack_arrays = value;
263 case OPT_ffixed_line_length_80:
264 gfc_option.fixed_line_length = 80;
267 case OPT_ffixed_line_length_132:
268 gfc_option.fixed_line_length = 132;
271 case OPT_fmax_identifier_length_:
272 if (value > GFC_MAX_SYMBOL_LEN)
273 gfc_fatal_error ("Maximum supported idenitifier length is %d",
275 gfc_option.max_identifier_length = value;
279 if (gfc_validate_kind (BT_REAL, value) < 0)
280 gfc_fatal_error ("Argument to -fqkind isn't a valid real kind");
281 gfc_option.q_kind = value;
285 gfc_option.i8 = value;
289 gfc_option.r8 = value;
293 gfc_option.d8 = value;
297 gfc_add_include_path (arg);
302 gfc_handle_module_path_options (arg);
305 gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F2003_OBS
307 gfc_option.warn_std = GFC_STD_F95_OBS;
308 gfc_option.max_identifier_length = 31;
312 gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F2003_OBS
314 gfc_option.warn_std = GFC_STD_F95_OBS | GFC_STD_F2003_OBS;
315 gfc_option.max_identifier_length = 63;
319 gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F95_DEL
320 | GFC_STD_F2003_OBS | GFC_STD_F2003_DEL | GFC_STD_F2003 | GFC_STD_GNU;
321 gfc_option.warn_std = GFC_STD_F95_OBS | GFC_STD_F95_DEL
322 | GFC_STD_F2003_OBS | GFC_STD_F2003_DEL | GFC_STD_GNU;