Commit | Line | Data |
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c906108c | 1 | /* Fortran language support routines for GDB, the GNU debugger. |
ce27fb25 | 2 | |
61baf725 | 3 | Copyright (C) 1993-2017 Free Software Foundation, Inc. |
ce27fb25 | 4 | |
c906108c SS |
5 | Contributed by Motorola. Adapted from the C parser by Farooq Butt |
6 | (fmbutt@engage.sps.mot.com). | |
7 | ||
c5aa993b | 8 | This file is part of GDB. |
c906108c | 9 | |
c5aa993b JM |
10 | This program is free software; you can redistribute it and/or modify |
11 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 12 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 13 | (at your option) any later version. |
c906108c | 14 | |
c5aa993b JM |
15 | This program is distributed in the hope that it will be useful, |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
c906108c | 19 | |
c5aa993b | 20 | You should have received a copy of the GNU General Public License |
a9762ec7 | 21 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
22 | |
23 | #include "defs.h" | |
c906108c SS |
24 | #include "symtab.h" |
25 | #include "gdbtypes.h" | |
26 | #include "expression.h" | |
27 | #include "parser-defs.h" | |
28 | #include "language.h" | |
a53b64ea | 29 | #include "varobj.h" |
c906108c | 30 | #include "f-lang.h" |
745b8ca0 | 31 | #include "valprint.h" |
5f9a71c3 | 32 | #include "value.h" |
f55ee35c | 33 | #include "cp-support.h" |
3b2b8fea | 34 | #include "charset.h" |
8e069a98 | 35 | #include "c-lang.h" |
c906108c | 36 | |
c906108c | 37 | |
c906108c SS |
38 | /* Local functions */ |
39 | ||
6c7a06a3 TT |
40 | static void f_printchar (int c, struct type *type, struct ui_file * stream); |
41 | static void f_emit_char (int c, struct type *type, | |
42 | struct ui_file * stream, int quoter); | |
c906108c | 43 | |
3b2b8fea TT |
44 | /* Return the encoding that should be used for the character type |
45 | TYPE. */ | |
46 | ||
47 | static const char * | |
48 | f_get_encoding (struct type *type) | |
49 | { | |
50 | const char *encoding; | |
51 | ||
52 | switch (TYPE_LENGTH (type)) | |
53 | { | |
54 | case 1: | |
55 | encoding = target_charset (get_type_arch (type)); | |
56 | break; | |
57 | case 4: | |
58 | if (gdbarch_byte_order (get_type_arch (type)) == BFD_ENDIAN_BIG) | |
59 | encoding = "UTF-32BE"; | |
60 | else | |
61 | encoding = "UTF-32LE"; | |
62 | break; | |
63 | ||
64 | default: | |
65 | error (_("unrecognized character type")); | |
66 | } | |
67 | ||
68 | return encoding; | |
69 | } | |
70 | ||
c906108c SS |
71 | /* Print the character C on STREAM as part of the contents of a literal |
72 | string whose delimiter is QUOTER. Note that that format for printing | |
73 | characters and strings is language specific. | |
74 | FIXME: This is a copy of the same function from c-exp.y. It should | |
75 | be replaced with a true F77 version. */ | |
76 | ||
77 | static void | |
6c7a06a3 | 78 | f_emit_char (int c, struct type *type, struct ui_file *stream, int quoter) |
c906108c | 79 | { |
3b2b8fea | 80 | const char *encoding = f_get_encoding (type); |
c5aa993b | 81 | |
3b2b8fea | 82 | generic_emit_char (c, type, stream, quoter, encoding); |
c906108c SS |
83 | } |
84 | ||
3b2b8fea | 85 | /* Implementation of la_printchar. */ |
c906108c SS |
86 | |
87 | static void | |
6c7a06a3 | 88 | f_printchar (int c, struct type *type, struct ui_file *stream) |
c906108c SS |
89 | { |
90 | fputs_filtered ("'", stream); | |
6c7a06a3 | 91 | LA_EMIT_CHAR (c, type, stream, '\''); |
c906108c SS |
92 | fputs_filtered ("'", stream); |
93 | } | |
94 | ||
95 | /* Print the character string STRING, printing at most LENGTH characters. | |
96 | Printing stops early if the number hits print_max; repeat counts | |
97 | are printed as appropriate. Print ellipses at the end if we | |
98 | had to stop before printing LENGTH characters, or if FORCE_ELLIPSES. | |
99 | FIXME: This is a copy of the same function from c-exp.y. It should | |
0963b4bd | 100 | be replaced with a true F77 version. */ |
c906108c SS |
101 | |
102 | static void | |
6c7a06a3 | 103 | f_printstr (struct ui_file *stream, struct type *type, const gdb_byte *string, |
be759fcf | 104 | unsigned int length, const char *encoding, int force_ellipses, |
79a45b7d | 105 | const struct value_print_options *options) |
c906108c | 106 | { |
3b2b8fea | 107 | const char *type_encoding = f_get_encoding (type); |
c5aa993b | 108 | |
3b2b8fea TT |
109 | if (TYPE_LENGTH (type) == 4) |
110 | fputs_filtered ("4_", stream); | |
c5aa993b | 111 | |
3b2b8fea TT |
112 | if (!encoding || !*encoding) |
113 | encoding = type_encoding; | |
c5aa993b | 114 | |
3b2b8fea TT |
115 | generic_printstr (stream, type, string, length, encoding, |
116 | force_ellipses, '\'', 0, options); | |
c906108c | 117 | } |
c906108c | 118 | \f |
c5aa993b | 119 | |
c906108c SS |
120 | /* Table of operators and their precedences for printing expressions. */ |
121 | ||
c5aa993b JM |
122 | static const struct op_print f_op_print_tab[] = |
123 | { | |
124 | {"+", BINOP_ADD, PREC_ADD, 0}, | |
125 | {"+", UNOP_PLUS, PREC_PREFIX, 0}, | |
126 | {"-", BINOP_SUB, PREC_ADD, 0}, | |
127 | {"-", UNOP_NEG, PREC_PREFIX, 0}, | |
128 | {"*", BINOP_MUL, PREC_MUL, 0}, | |
129 | {"/", BINOP_DIV, PREC_MUL, 0}, | |
130 | {"DIV", BINOP_INTDIV, PREC_MUL, 0}, | |
131 | {"MOD", BINOP_REM, PREC_MUL, 0}, | |
132 | {"=", BINOP_ASSIGN, PREC_ASSIGN, 1}, | |
133 | {".OR.", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0}, | |
134 | {".AND.", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0}, | |
135 | {".NOT.", UNOP_LOGICAL_NOT, PREC_PREFIX, 0}, | |
136 | {".EQ.", BINOP_EQUAL, PREC_EQUAL, 0}, | |
137 | {".NE.", BINOP_NOTEQUAL, PREC_EQUAL, 0}, | |
138 | {".LE.", BINOP_LEQ, PREC_ORDER, 0}, | |
139 | {".GE.", BINOP_GEQ, PREC_ORDER, 0}, | |
140 | {".GT.", BINOP_GTR, PREC_ORDER, 0}, | |
141 | {".LT.", BINOP_LESS, PREC_ORDER, 0}, | |
142 | {"**", UNOP_IND, PREC_PREFIX, 0}, | |
143 | {"@", BINOP_REPEAT, PREC_REPEAT, 0}, | |
f486487f | 144 | {NULL, OP_NULL, PREC_REPEAT, 0} |
c906108c SS |
145 | }; |
146 | \f | |
cad351d1 UW |
147 | enum f_primitive_types { |
148 | f_primitive_type_character, | |
149 | f_primitive_type_logical, | |
150 | f_primitive_type_logical_s1, | |
151 | f_primitive_type_logical_s2, | |
ce4b0682 | 152 | f_primitive_type_logical_s8, |
cad351d1 UW |
153 | f_primitive_type_integer, |
154 | f_primitive_type_integer_s2, | |
155 | f_primitive_type_real, | |
156 | f_primitive_type_real_s8, | |
157 | f_primitive_type_real_s16, | |
158 | f_primitive_type_complex_s8, | |
159 | f_primitive_type_complex_s16, | |
160 | f_primitive_type_void, | |
161 | nr_f_primitive_types | |
c906108c SS |
162 | }; |
163 | ||
cad351d1 UW |
164 | static void |
165 | f_language_arch_info (struct gdbarch *gdbarch, | |
166 | struct language_arch_info *lai) | |
167 | { | |
54ef06c7 UW |
168 | const struct builtin_f_type *builtin = builtin_f_type (gdbarch); |
169 | ||
170 | lai->string_char_type = builtin->builtin_character; | |
cad351d1 UW |
171 | lai->primitive_type_vector |
172 | = GDBARCH_OBSTACK_CALLOC (gdbarch, nr_f_primitive_types + 1, | |
173 | struct type *); | |
174 | ||
175 | lai->primitive_type_vector [f_primitive_type_character] | |
54ef06c7 | 176 | = builtin->builtin_character; |
cad351d1 | 177 | lai->primitive_type_vector [f_primitive_type_logical] |
54ef06c7 | 178 | = builtin->builtin_logical; |
cad351d1 | 179 | lai->primitive_type_vector [f_primitive_type_logical_s1] |
54ef06c7 | 180 | = builtin->builtin_logical_s1; |
cad351d1 | 181 | lai->primitive_type_vector [f_primitive_type_logical_s2] |
54ef06c7 | 182 | = builtin->builtin_logical_s2; |
ce4b0682 SDJ |
183 | lai->primitive_type_vector [f_primitive_type_logical_s8] |
184 | = builtin->builtin_logical_s8; | |
cad351d1 | 185 | lai->primitive_type_vector [f_primitive_type_real] |
54ef06c7 | 186 | = builtin->builtin_real; |
cad351d1 | 187 | lai->primitive_type_vector [f_primitive_type_real_s8] |
54ef06c7 | 188 | = builtin->builtin_real_s8; |
cad351d1 | 189 | lai->primitive_type_vector [f_primitive_type_real_s16] |
54ef06c7 | 190 | = builtin->builtin_real_s16; |
cad351d1 | 191 | lai->primitive_type_vector [f_primitive_type_complex_s8] |
54ef06c7 | 192 | = builtin->builtin_complex_s8; |
cad351d1 | 193 | lai->primitive_type_vector [f_primitive_type_complex_s16] |
54ef06c7 | 194 | = builtin->builtin_complex_s16; |
cad351d1 | 195 | lai->primitive_type_vector [f_primitive_type_void] |
54ef06c7 | 196 | = builtin->builtin_void; |
fbb06eb1 UW |
197 | |
198 | lai->bool_type_symbol = "logical"; | |
199 | lai->bool_type_default = builtin->builtin_logical_s2; | |
cad351d1 UW |
200 | } |
201 | ||
f55ee35c JK |
202 | /* Remove the modules separator :: from the default break list. */ |
203 | ||
67cb5b2d | 204 | static const char * |
f55ee35c JK |
205 | f_word_break_characters (void) |
206 | { | |
207 | static char *retval; | |
208 | ||
209 | if (!retval) | |
210 | { | |
211 | char *s; | |
212 | ||
213 | retval = xstrdup (default_word_break_characters ()); | |
214 | s = strchr (retval, ':'); | |
215 | if (s) | |
216 | { | |
217 | char *last_char = &s[strlen (s) - 1]; | |
218 | ||
219 | *s = *last_char; | |
220 | *last_char = 0; | |
221 | } | |
222 | } | |
223 | return retval; | |
224 | } | |
225 | ||
3e43a32a MS |
226 | /* Consider the modules separator :: as a valid symbol name character |
227 | class. */ | |
f55ee35c | 228 | |
eb3ff9a5 PA |
229 | static void |
230 | f_collect_symbol_completion_matches (completion_tracker &tracker, | |
c6756f62 | 231 | complete_symbol_mode mode, |
eb3ff9a5 PA |
232 | const char *text, const char *word, |
233 | enum type_code code) | |
f55ee35c | 234 | { |
c6756f62 | 235 | default_collect_symbol_completion_matches_break_on (tracker, mode, |
eb3ff9a5 | 236 | text, word, ":", code); |
f55ee35c JK |
237 | } |
238 | ||
56618e20 TT |
239 | static const char *f_extensions[] = |
240 | { | |
241 | ".f", ".F", ".for", ".FOR", ".ftn", ".FTN", ".fpp", ".FPP", | |
242 | ".f90", ".F90", ".f95", ".F95", ".f03", ".F03", ".f08", ".F08", | |
243 | NULL | |
244 | }; | |
245 | ||
47e77640 | 246 | extern const struct language_defn f_language_defn = |
c5aa993b | 247 | { |
c906108c | 248 | "fortran", |
6abde28f | 249 | "Fortran", |
c906108c | 250 | language_fortran, |
c906108c | 251 | range_check_on, |
63872f9d | 252 | case_sensitive_off, |
7ca2d3a3 | 253 | array_column_major, |
9a044a89 | 254 | macro_expansion_no, |
56618e20 | 255 | f_extensions, |
5f9769d1 | 256 | &exp_descriptor_standard, |
c906108c | 257 | f_parse, /* parser */ |
b3f11165 | 258 | f_yyerror, /* parser error function */ |
e85c3284 | 259 | null_post_parser, |
c906108c SS |
260 | f_printchar, /* Print character constant */ |
261 | f_printstr, /* function to print string constant */ | |
262 | f_emit_char, /* Function to print a single character */ | |
c5aa993b | 263 | f_print_type, /* Print a type using appropriate syntax */ |
5c6ce71d | 264 | default_print_typedef, /* Print a typedef using appropriate syntax */ |
c906108c | 265 | f_val_print, /* Print a value using appropriate syntax */ |
c5aa993b | 266 | c_value_print, /* FIXME */ |
a5ee536b | 267 | default_read_var_value, /* la_read_var_value */ |
f636b87d | 268 | NULL, /* Language specific skip_trampoline */ |
2b2d9e11 | 269 | NULL, /* name_of_this */ |
f55ee35c | 270 | cp_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */ |
b368761e | 271 | basic_lookup_transparent_type,/* lookup_transparent_type */ |
8b302db8 TT |
272 | |
273 | /* We could support demangling here to provide module namespaces | |
274 | also for inferiors with only minimal symbol table (ELF symbols). | |
275 | Just the mangling standard is not standardized across compilers | |
276 | and there is no DW_AT_producer available for inferiors with only | |
277 | the ELF symbols to check the mangling kind. */ | |
9a3d7dfd | 278 | NULL, /* Language specific symbol demangler */ |
8b302db8 | 279 | NULL, |
3e43a32a MS |
280 | NULL, /* Language specific |
281 | class_name_from_physname */ | |
c906108c SS |
282 | f_op_print_tab, /* expression operators for printing */ |
283 | 0, /* arrays are first-class (not c-style) */ | |
284 | 1, /* String lower bound */ | |
f55ee35c | 285 | f_word_break_characters, |
eb3ff9a5 | 286 | f_collect_symbol_completion_matches, |
cad351d1 | 287 | f_language_arch_info, |
e79af960 | 288 | default_print_array_index, |
41f1b697 | 289 | default_pass_by_reference, |
ae6a3a4c | 290 | default_get_string, |
43cc5389 | 291 | c_watch_location_expression, |
1a119f36 | 292 | NULL, /* la_get_symbol_name_cmp */ |
f8eba3c6 | 293 | iterate_over_symbols, |
a53b64ea | 294 | &default_varobj_ops, |
bb2ec1b3 TT |
295 | NULL, |
296 | NULL, | |
c906108c | 297 | LANG_MAGIC |
c5aa993b | 298 | }; |
c906108c | 299 | |
54ef06c7 UW |
300 | static void * |
301 | build_fortran_types (struct gdbarch *gdbarch) | |
c906108c | 302 | { |
54ef06c7 UW |
303 | struct builtin_f_type *builtin_f_type |
304 | = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct builtin_f_type); | |
305 | ||
e9bb382b | 306 | builtin_f_type->builtin_void |
77b7c781 | 307 | = arch_type (gdbarch, TYPE_CODE_VOID, TARGET_CHAR_BIT, "VOID"); |
e9bb382b UW |
308 | |
309 | builtin_f_type->builtin_character | |
310 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, 0, "character"); | |
311 | ||
312 | builtin_f_type->builtin_logical_s1 | |
313 | = arch_boolean_type (gdbarch, TARGET_CHAR_BIT, 1, "logical*1"); | |
314 | ||
315 | builtin_f_type->builtin_integer_s2 | |
316 | = arch_integer_type (gdbarch, gdbarch_short_bit (gdbarch), 0, | |
317 | "integer*2"); | |
318 | ||
319 | builtin_f_type->builtin_logical_s2 | |
320 | = arch_boolean_type (gdbarch, gdbarch_short_bit (gdbarch), 1, | |
321 | "logical*2"); | |
322 | ||
ce4b0682 SDJ |
323 | builtin_f_type->builtin_logical_s8 |
324 | = arch_boolean_type (gdbarch, gdbarch_long_long_bit (gdbarch), 1, | |
325 | "logical*8"); | |
326 | ||
e9bb382b UW |
327 | builtin_f_type->builtin_integer |
328 | = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), 0, | |
329 | "integer"); | |
330 | ||
331 | builtin_f_type->builtin_logical | |
332 | = arch_boolean_type (gdbarch, gdbarch_int_bit (gdbarch), 1, | |
333 | "logical*4"); | |
334 | ||
335 | builtin_f_type->builtin_real | |
336 | = arch_float_type (gdbarch, gdbarch_float_bit (gdbarch), | |
49f190bc | 337 | "real", gdbarch_float_format (gdbarch)); |
e9bb382b UW |
338 | builtin_f_type->builtin_real_s8 |
339 | = arch_float_type (gdbarch, gdbarch_double_bit (gdbarch), | |
49f190bc | 340 | "real*8", gdbarch_double_format (gdbarch)); |
e9bb382b UW |
341 | builtin_f_type->builtin_real_s16 |
342 | = arch_float_type (gdbarch, gdbarch_long_double_bit (gdbarch), | |
49f190bc | 343 | "real*16", gdbarch_long_double_format (gdbarch)); |
e9bb382b UW |
344 | |
345 | builtin_f_type->builtin_complex_s8 | |
346 | = arch_complex_type (gdbarch, "complex*8", | |
347 | builtin_f_type->builtin_real); | |
348 | builtin_f_type->builtin_complex_s16 | |
349 | = arch_complex_type (gdbarch, "complex*16", | |
350 | builtin_f_type->builtin_real_s8); | |
351 | builtin_f_type->builtin_complex_s32 | |
352 | = arch_complex_type (gdbarch, "complex*32", | |
353 | builtin_f_type->builtin_real_s16); | |
54ef06c7 UW |
354 | |
355 | return builtin_f_type; | |
356 | } | |
357 | ||
358 | static struct gdbarch_data *f_type_data; | |
359 | ||
360 | const struct builtin_f_type * | |
361 | builtin_f_type (struct gdbarch *gdbarch) | |
362 | { | |
9a3c8263 | 363 | return (const struct builtin_f_type *) gdbarch_data (gdbarch, f_type_data); |
4e845cd3 MS |
364 | } |
365 | ||
366 | void | |
367 | _initialize_f_language (void) | |
368 | { | |
54ef06c7 | 369 | f_type_data = gdbarch_data_register_post_init (build_fortran_types); |
c906108c | 370 | } |