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c906108c | 1 | /* Fortran language support routines for GDB, the GNU debugger. |
ce27fb25 | 2 | |
b811d2c2 | 3 | Copyright (C) 1993-2020 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" | |
4de283e4 | 24 | #include "symtab.h" |
d55e5aa6 | 25 | #include "gdbtypes.h" |
4de283e4 | 26 | #include "expression.h" |
d55e5aa6 | 27 | #include "parser-defs.h" |
4de283e4 TT |
28 | #include "language.h" |
29 | #include "varobj.h" | |
30 | #include "gdbcore.h" | |
31 | #include "f-lang.h" | |
745b8ca0 | 32 | #include "valprint.h" |
5f9a71c3 | 33 | #include "value.h" |
4de283e4 TT |
34 | #include "cp-support.h" |
35 | #include "charset.h" | |
36 | #include "c-lang.h" | |
37 | #include "target-float.h" | |
0d12e84c | 38 | #include "gdbarch.h" |
4de283e4 TT |
39 | |
40 | #include <math.h> | |
c906108c | 41 | |
c906108c SS |
42 | /* Local functions */ |
43 | ||
6c7a06a3 TT |
44 | static void f_printchar (int c, struct type *type, struct ui_file * stream); |
45 | static void f_emit_char (int c, struct type *type, | |
46 | struct ui_file * stream, int quoter); | |
c906108c | 47 | |
3b2b8fea TT |
48 | /* Return the encoding that should be used for the character type |
49 | TYPE. */ | |
50 | ||
51 | static const char * | |
52 | f_get_encoding (struct type *type) | |
53 | { | |
54 | const char *encoding; | |
55 | ||
56 | switch (TYPE_LENGTH (type)) | |
57 | { | |
58 | case 1: | |
59 | encoding = target_charset (get_type_arch (type)); | |
60 | break; | |
61 | case 4: | |
34877895 | 62 | if (type_byte_order (type) == BFD_ENDIAN_BIG) |
3b2b8fea TT |
63 | encoding = "UTF-32BE"; |
64 | else | |
65 | encoding = "UTF-32LE"; | |
66 | break; | |
67 | ||
68 | default: | |
69 | error (_("unrecognized character type")); | |
70 | } | |
71 | ||
72 | return encoding; | |
73 | } | |
74 | ||
c906108c SS |
75 | /* Print the character C on STREAM as part of the contents of a literal |
76 | string whose delimiter is QUOTER. Note that that format for printing | |
77 | characters and strings is language specific. | |
78 | FIXME: This is a copy of the same function from c-exp.y. It should | |
79 | be replaced with a true F77 version. */ | |
80 | ||
81 | static void | |
6c7a06a3 | 82 | f_emit_char (int c, struct type *type, struct ui_file *stream, int quoter) |
c906108c | 83 | { |
3b2b8fea | 84 | const char *encoding = f_get_encoding (type); |
c5aa993b | 85 | |
3b2b8fea | 86 | generic_emit_char (c, type, stream, quoter, encoding); |
c906108c SS |
87 | } |
88 | ||
3b2b8fea | 89 | /* Implementation of la_printchar. */ |
c906108c SS |
90 | |
91 | static void | |
6c7a06a3 | 92 | f_printchar (int c, struct type *type, struct ui_file *stream) |
c906108c SS |
93 | { |
94 | fputs_filtered ("'", stream); | |
6c7a06a3 | 95 | LA_EMIT_CHAR (c, type, stream, '\''); |
c906108c SS |
96 | fputs_filtered ("'", stream); |
97 | } | |
98 | ||
99 | /* Print the character string STRING, printing at most LENGTH characters. | |
100 | Printing stops early if the number hits print_max; repeat counts | |
101 | are printed as appropriate. Print ellipses at the end if we | |
102 | had to stop before printing LENGTH characters, or if FORCE_ELLIPSES. | |
103 | FIXME: This is a copy of the same function from c-exp.y. It should | |
0963b4bd | 104 | be replaced with a true F77 version. */ |
c906108c SS |
105 | |
106 | static void | |
6c7a06a3 | 107 | f_printstr (struct ui_file *stream, struct type *type, const gdb_byte *string, |
be759fcf | 108 | unsigned int length, const char *encoding, int force_ellipses, |
79a45b7d | 109 | const struct value_print_options *options) |
c906108c | 110 | { |
3b2b8fea | 111 | const char *type_encoding = f_get_encoding (type); |
c5aa993b | 112 | |
3b2b8fea TT |
113 | if (TYPE_LENGTH (type) == 4) |
114 | fputs_filtered ("4_", stream); | |
c5aa993b | 115 | |
3b2b8fea TT |
116 | if (!encoding || !*encoding) |
117 | encoding = type_encoding; | |
c5aa993b | 118 | |
3b2b8fea TT |
119 | generic_printstr (stream, type, string, length, encoding, |
120 | force_ellipses, '\'', 0, options); | |
c906108c | 121 | } |
c906108c | 122 | \f |
c5aa993b | 123 | |
c906108c SS |
124 | /* Table of operators and their precedences for printing expressions. */ |
125 | ||
c5aa993b JM |
126 | static const struct op_print f_op_print_tab[] = |
127 | { | |
128 | {"+", BINOP_ADD, PREC_ADD, 0}, | |
129 | {"+", UNOP_PLUS, PREC_PREFIX, 0}, | |
130 | {"-", BINOP_SUB, PREC_ADD, 0}, | |
131 | {"-", UNOP_NEG, PREC_PREFIX, 0}, | |
132 | {"*", BINOP_MUL, PREC_MUL, 0}, | |
133 | {"/", BINOP_DIV, PREC_MUL, 0}, | |
134 | {"DIV", BINOP_INTDIV, PREC_MUL, 0}, | |
135 | {"MOD", BINOP_REM, PREC_MUL, 0}, | |
136 | {"=", BINOP_ASSIGN, PREC_ASSIGN, 1}, | |
137 | {".OR.", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0}, | |
138 | {".AND.", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0}, | |
139 | {".NOT.", UNOP_LOGICAL_NOT, PREC_PREFIX, 0}, | |
140 | {".EQ.", BINOP_EQUAL, PREC_EQUAL, 0}, | |
141 | {".NE.", BINOP_NOTEQUAL, PREC_EQUAL, 0}, | |
142 | {".LE.", BINOP_LEQ, PREC_ORDER, 0}, | |
143 | {".GE.", BINOP_GEQ, PREC_ORDER, 0}, | |
144 | {".GT.", BINOP_GTR, PREC_ORDER, 0}, | |
145 | {".LT.", BINOP_LESS, PREC_ORDER, 0}, | |
146 | {"**", UNOP_IND, PREC_PREFIX, 0}, | |
147 | {"@", BINOP_REPEAT, PREC_REPEAT, 0}, | |
f486487f | 148 | {NULL, OP_NULL, PREC_REPEAT, 0} |
c906108c SS |
149 | }; |
150 | \f | |
cad351d1 UW |
151 | enum f_primitive_types { |
152 | f_primitive_type_character, | |
153 | f_primitive_type_logical, | |
154 | f_primitive_type_logical_s1, | |
155 | f_primitive_type_logical_s2, | |
ce4b0682 | 156 | f_primitive_type_logical_s8, |
cad351d1 UW |
157 | f_primitive_type_integer, |
158 | f_primitive_type_integer_s2, | |
159 | f_primitive_type_real, | |
160 | f_primitive_type_real_s8, | |
161 | f_primitive_type_real_s16, | |
162 | f_primitive_type_complex_s8, | |
163 | f_primitive_type_complex_s16, | |
164 | f_primitive_type_void, | |
165 | nr_f_primitive_types | |
c906108c SS |
166 | }; |
167 | ||
f55ee35c JK |
168 | /* Remove the modules separator :: from the default break list. */ |
169 | ||
67cb5b2d | 170 | static const char * |
f55ee35c JK |
171 | f_word_break_characters (void) |
172 | { | |
173 | static char *retval; | |
174 | ||
175 | if (!retval) | |
176 | { | |
177 | char *s; | |
178 | ||
179 | retval = xstrdup (default_word_break_characters ()); | |
180 | s = strchr (retval, ':'); | |
181 | if (s) | |
182 | { | |
183 | char *last_char = &s[strlen (s) - 1]; | |
184 | ||
185 | *s = *last_char; | |
186 | *last_char = 0; | |
187 | } | |
188 | } | |
189 | return retval; | |
190 | } | |
191 | ||
3e43a32a MS |
192 | /* Consider the modules separator :: as a valid symbol name character |
193 | class. */ | |
f55ee35c | 194 | |
eb3ff9a5 PA |
195 | static void |
196 | f_collect_symbol_completion_matches (completion_tracker &tracker, | |
c6756f62 | 197 | complete_symbol_mode mode, |
b5ec771e | 198 | symbol_name_match_type compare_name, |
eb3ff9a5 PA |
199 | const char *text, const char *word, |
200 | enum type_code code) | |
f55ee35c | 201 | { |
c6756f62 | 202 | default_collect_symbol_completion_matches_break_on (tracker, mode, |
b5ec771e | 203 | compare_name, |
eb3ff9a5 | 204 | text, word, ":", code); |
f55ee35c JK |
205 | } |
206 | ||
9dad4a58 | 207 | /* Special expression evaluation cases for Fortran. */ |
cb8c24b6 SM |
208 | |
209 | static struct value * | |
9dad4a58 AB |
210 | evaluate_subexp_f (struct type *expect_type, struct expression *exp, |
211 | int *pos, enum noside noside) | |
212 | { | |
b6d03bb2 | 213 | struct value *arg1 = NULL, *arg2 = NULL; |
4d00f5d8 AB |
214 | enum exp_opcode op; |
215 | int pc; | |
216 | struct type *type; | |
217 | ||
218 | pc = *pos; | |
219 | *pos += 1; | |
220 | op = exp->elts[pc].opcode; | |
221 | ||
222 | switch (op) | |
223 | { | |
224 | default: | |
225 | *pos -= 1; | |
226 | return evaluate_subexp_standard (expect_type, exp, pos, noside); | |
227 | ||
0841c79a AB |
228 | case UNOP_ABS: |
229 | arg1 = evaluate_subexp (NULL_TYPE, exp, pos, noside); | |
230 | if (noside == EVAL_SKIP) | |
231 | return eval_skip_value (exp); | |
232 | type = value_type (arg1); | |
78134374 | 233 | switch (type->code ()) |
0841c79a AB |
234 | { |
235 | case TYPE_CODE_FLT: | |
236 | { | |
237 | double d | |
238 | = fabs (target_float_to_host_double (value_contents (arg1), | |
239 | value_type (arg1))); | |
240 | return value_from_host_double (type, d); | |
241 | } | |
242 | case TYPE_CODE_INT: | |
243 | { | |
244 | LONGEST l = value_as_long (arg1); | |
245 | l = llabs (l); | |
246 | return value_from_longest (type, l); | |
247 | } | |
248 | } | |
249 | error (_("ABS of type %s not supported"), TYPE_SAFE_NAME (type)); | |
250 | ||
b6d03bb2 AB |
251 | case BINOP_MOD: |
252 | arg1 = evaluate_subexp (NULL_TYPE, exp, pos, noside); | |
253 | arg2 = evaluate_subexp (value_type (arg1), exp, pos, noside); | |
254 | if (noside == EVAL_SKIP) | |
255 | return eval_skip_value (exp); | |
256 | type = value_type (arg1); | |
78134374 | 257 | if (type->code () != value_type (arg2)->code ()) |
b6d03bb2 | 258 | error (_("non-matching types for parameters to MOD ()")); |
78134374 | 259 | switch (type->code ()) |
b6d03bb2 AB |
260 | { |
261 | case TYPE_CODE_FLT: | |
262 | { | |
263 | double d1 | |
264 | = target_float_to_host_double (value_contents (arg1), | |
265 | value_type (arg1)); | |
266 | double d2 | |
267 | = target_float_to_host_double (value_contents (arg2), | |
268 | value_type (arg2)); | |
269 | double d3 = fmod (d1, d2); | |
270 | return value_from_host_double (type, d3); | |
271 | } | |
272 | case TYPE_CODE_INT: | |
273 | { | |
274 | LONGEST v1 = value_as_long (arg1); | |
275 | LONGEST v2 = value_as_long (arg2); | |
276 | if (v2 == 0) | |
277 | error (_("calling MOD (N, 0) is undefined")); | |
278 | LONGEST v3 = v1 - (v1 / v2) * v2; | |
279 | return value_from_longest (value_type (arg1), v3); | |
280 | } | |
281 | } | |
282 | error (_("MOD of type %s not supported"), TYPE_SAFE_NAME (type)); | |
283 | ||
284 | case UNOP_FORTRAN_CEILING: | |
285 | { | |
286 | arg1 = evaluate_subexp (NULL_TYPE, exp, pos, noside); | |
287 | if (noside == EVAL_SKIP) | |
288 | return eval_skip_value (exp); | |
289 | type = value_type (arg1); | |
78134374 | 290 | if (type->code () != TYPE_CODE_FLT) |
b6d03bb2 AB |
291 | error (_("argument to CEILING must be of type float")); |
292 | double val | |
293 | = target_float_to_host_double (value_contents (arg1), | |
294 | value_type (arg1)); | |
295 | val = ceil (val); | |
296 | return value_from_host_double (type, val); | |
297 | } | |
298 | ||
299 | case UNOP_FORTRAN_FLOOR: | |
300 | { | |
301 | arg1 = evaluate_subexp (NULL_TYPE, exp, pos, noside); | |
302 | if (noside == EVAL_SKIP) | |
303 | return eval_skip_value (exp); | |
304 | type = value_type (arg1); | |
78134374 | 305 | if (type->code () != TYPE_CODE_FLT) |
b6d03bb2 AB |
306 | error (_("argument to FLOOR must be of type float")); |
307 | double val | |
308 | = target_float_to_host_double (value_contents (arg1), | |
309 | value_type (arg1)); | |
310 | val = floor (val); | |
311 | return value_from_host_double (type, val); | |
312 | } | |
313 | ||
314 | case BINOP_FORTRAN_MODULO: | |
315 | { | |
316 | arg1 = evaluate_subexp (NULL_TYPE, exp, pos, noside); | |
317 | arg2 = evaluate_subexp (value_type (arg1), exp, pos, noside); | |
318 | if (noside == EVAL_SKIP) | |
319 | return eval_skip_value (exp); | |
320 | type = value_type (arg1); | |
78134374 | 321 | if (type->code () != value_type (arg2)->code ()) |
b6d03bb2 AB |
322 | error (_("non-matching types for parameters to MODULO ()")); |
323 | /* MODULO(A, P) = A - FLOOR (A / P) * P */ | |
78134374 | 324 | switch (type->code ()) |
b6d03bb2 AB |
325 | { |
326 | case TYPE_CODE_INT: | |
327 | { | |
328 | LONGEST a = value_as_long (arg1); | |
329 | LONGEST p = value_as_long (arg2); | |
330 | LONGEST result = a - (a / p) * p; | |
331 | if (result != 0 && (a < 0) != (p < 0)) | |
332 | result += p; | |
333 | return value_from_longest (value_type (arg1), result); | |
334 | } | |
335 | case TYPE_CODE_FLT: | |
336 | { | |
337 | double a | |
338 | = target_float_to_host_double (value_contents (arg1), | |
339 | value_type (arg1)); | |
340 | double p | |
341 | = target_float_to_host_double (value_contents (arg2), | |
342 | value_type (arg2)); | |
343 | double result = fmod (a, p); | |
344 | if (result != 0 && (a < 0.0) != (p < 0.0)) | |
345 | result += p; | |
346 | return value_from_host_double (type, result); | |
347 | } | |
348 | } | |
349 | error (_("MODULO of type %s not supported"), TYPE_SAFE_NAME (type)); | |
350 | } | |
351 | ||
352 | case BINOP_FORTRAN_CMPLX: | |
353 | arg1 = evaluate_subexp (NULL_TYPE, exp, pos, noside); | |
354 | arg2 = evaluate_subexp (value_type (arg1), exp, pos, noside); | |
355 | if (noside == EVAL_SKIP) | |
356 | return eval_skip_value (exp); | |
357 | type = builtin_f_type(exp->gdbarch)->builtin_complex_s16; | |
358 | return value_literal_complex (arg1, arg2, type); | |
359 | ||
83228e93 | 360 | case UNOP_FORTRAN_KIND: |
4d00f5d8 AB |
361 | arg1 = evaluate_subexp (NULL, exp, pos, EVAL_AVOID_SIDE_EFFECTS); |
362 | type = value_type (arg1); | |
363 | ||
78134374 | 364 | switch (type->code ()) |
4d00f5d8 AB |
365 | { |
366 | case TYPE_CODE_STRUCT: | |
367 | case TYPE_CODE_UNION: | |
368 | case TYPE_CODE_MODULE: | |
369 | case TYPE_CODE_FUNC: | |
370 | error (_("argument to kind must be an intrinsic type")); | |
371 | } | |
372 | ||
373 | if (!TYPE_TARGET_TYPE (type)) | |
374 | return value_from_longest (builtin_type (exp->gdbarch)->builtin_int, | |
375 | TYPE_LENGTH (type)); | |
376 | return value_from_longest (builtin_type (exp->gdbarch)->builtin_int, | |
78134374 | 377 | TYPE_LENGTH (TYPE_TARGET_TYPE (type))); |
4d00f5d8 AB |
378 | } |
379 | ||
380 | /* Should be unreachable. */ | |
381 | return nullptr; | |
9dad4a58 AB |
382 | } |
383 | ||
4be290b2 AB |
384 | /* Return true if TYPE is a string. */ |
385 | ||
386 | static bool | |
387 | f_is_string_type_p (struct type *type) | |
388 | { | |
389 | type = check_typedef (type); | |
78134374 SM |
390 | return (type->code () == TYPE_CODE_STRING |
391 | || (type->code () == TYPE_CODE_ARRAY | |
392 | && TYPE_TARGET_TYPE (type)->code () == TYPE_CODE_CHAR)); | |
4be290b2 AB |
393 | } |
394 | ||
83228e93 AB |
395 | /* Special expression lengths for Fortran. */ |
396 | ||
397 | static void | |
398 | operator_length_f (const struct expression *exp, int pc, int *oplenp, | |
399 | int *argsp) | |
400 | { | |
401 | int oplen = 1; | |
402 | int args = 0; | |
403 | ||
404 | switch (exp->elts[pc - 1].opcode) | |
405 | { | |
406 | default: | |
407 | operator_length_standard (exp, pc, oplenp, argsp); | |
408 | return; | |
409 | ||
410 | case UNOP_FORTRAN_KIND: | |
b6d03bb2 AB |
411 | case UNOP_FORTRAN_FLOOR: |
412 | case UNOP_FORTRAN_CEILING: | |
83228e93 AB |
413 | oplen = 1; |
414 | args = 1; | |
415 | break; | |
b6d03bb2 AB |
416 | |
417 | case BINOP_FORTRAN_CMPLX: | |
418 | case BINOP_FORTRAN_MODULO: | |
419 | oplen = 1; | |
420 | args = 2; | |
421 | break; | |
83228e93 AB |
422 | } |
423 | ||
424 | *oplenp = oplen; | |
425 | *argsp = args; | |
426 | } | |
427 | ||
b6d03bb2 AB |
428 | /* Helper for PRINT_SUBEXP_F. Arguments are as for PRINT_SUBEXP_F, except |
429 | the extra argument NAME which is the text that should be printed as the | |
430 | name of this operation. */ | |
431 | ||
432 | static void | |
433 | print_unop_subexp_f (struct expression *exp, int *pos, | |
434 | struct ui_file *stream, enum precedence prec, | |
435 | const char *name) | |
436 | { | |
437 | (*pos)++; | |
438 | fprintf_filtered (stream, "%s(", name); | |
439 | print_subexp (exp, pos, stream, PREC_SUFFIX); | |
440 | fputs_filtered (")", stream); | |
441 | } | |
442 | ||
443 | /* Helper for PRINT_SUBEXP_F. Arguments are as for PRINT_SUBEXP_F, except | |
444 | the extra argument NAME which is the text that should be printed as the | |
445 | name of this operation. */ | |
446 | ||
447 | static void | |
448 | print_binop_subexp_f (struct expression *exp, int *pos, | |
449 | struct ui_file *stream, enum precedence prec, | |
450 | const char *name) | |
451 | { | |
452 | (*pos)++; | |
453 | fprintf_filtered (stream, "%s(", name); | |
454 | print_subexp (exp, pos, stream, PREC_SUFFIX); | |
455 | fputs_filtered (",", stream); | |
456 | print_subexp (exp, pos, stream, PREC_SUFFIX); | |
457 | fputs_filtered (")", stream); | |
458 | } | |
459 | ||
83228e93 AB |
460 | /* Special expression printing for Fortran. */ |
461 | ||
462 | static void | |
463 | print_subexp_f (struct expression *exp, int *pos, | |
464 | struct ui_file *stream, enum precedence prec) | |
465 | { | |
466 | int pc = *pos; | |
467 | enum exp_opcode op = exp->elts[pc].opcode; | |
468 | ||
469 | switch (op) | |
470 | { | |
471 | default: | |
472 | print_subexp_standard (exp, pos, stream, prec); | |
473 | return; | |
474 | ||
475 | case UNOP_FORTRAN_KIND: | |
b6d03bb2 AB |
476 | print_unop_subexp_f (exp, pos, stream, prec, "KIND"); |
477 | return; | |
478 | ||
479 | case UNOP_FORTRAN_FLOOR: | |
480 | print_unop_subexp_f (exp, pos, stream, prec, "FLOOR"); | |
481 | return; | |
482 | ||
483 | case UNOP_FORTRAN_CEILING: | |
484 | print_unop_subexp_f (exp, pos, stream, prec, "CEILING"); | |
485 | return; | |
486 | ||
487 | case BINOP_FORTRAN_CMPLX: | |
488 | print_binop_subexp_f (exp, pos, stream, prec, "CMPLX"); | |
489 | return; | |
490 | ||
491 | case BINOP_FORTRAN_MODULO: | |
492 | print_binop_subexp_f (exp, pos, stream, prec, "MODULO"); | |
83228e93 AB |
493 | return; |
494 | } | |
495 | } | |
496 | ||
497 | /* Special expression names for Fortran. */ | |
498 | ||
499 | static const char * | |
500 | op_name_f (enum exp_opcode opcode) | |
501 | { | |
502 | switch (opcode) | |
503 | { | |
504 | default: | |
505 | return op_name_standard (opcode); | |
506 | ||
507 | #define OP(name) \ | |
508 | case name: \ | |
509 | return #name ; | |
510 | #include "fortran-operator.def" | |
511 | #undef OP | |
512 | } | |
513 | } | |
514 | ||
515 | /* Special expression dumping for Fortran. */ | |
516 | ||
517 | static int | |
518 | dump_subexp_body_f (struct expression *exp, | |
519 | struct ui_file *stream, int elt) | |
520 | { | |
521 | int opcode = exp->elts[elt].opcode; | |
522 | int oplen, nargs, i; | |
523 | ||
524 | switch (opcode) | |
525 | { | |
526 | default: | |
527 | return dump_subexp_body_standard (exp, stream, elt); | |
528 | ||
529 | case UNOP_FORTRAN_KIND: | |
b6d03bb2 AB |
530 | case UNOP_FORTRAN_FLOOR: |
531 | case UNOP_FORTRAN_CEILING: | |
532 | case BINOP_FORTRAN_CMPLX: | |
533 | case BINOP_FORTRAN_MODULO: | |
83228e93 AB |
534 | operator_length_f (exp, (elt + 1), &oplen, &nargs); |
535 | break; | |
536 | } | |
537 | ||
538 | elt += oplen; | |
539 | for (i = 0; i < nargs; i += 1) | |
540 | elt = dump_subexp (exp, stream, elt); | |
541 | ||
542 | return elt; | |
543 | } | |
544 | ||
545 | /* Special expression checking for Fortran. */ | |
546 | ||
547 | static int | |
548 | operator_check_f (struct expression *exp, int pos, | |
549 | int (*objfile_func) (struct objfile *objfile, | |
550 | void *data), | |
551 | void *data) | |
552 | { | |
553 | const union exp_element *const elts = exp->elts; | |
554 | ||
555 | switch (elts[pos].opcode) | |
556 | { | |
557 | case UNOP_FORTRAN_KIND: | |
b6d03bb2 AB |
558 | case UNOP_FORTRAN_FLOOR: |
559 | case UNOP_FORTRAN_CEILING: | |
560 | case BINOP_FORTRAN_CMPLX: | |
561 | case BINOP_FORTRAN_MODULO: | |
83228e93 AB |
562 | /* Any references to objfiles are held in the arguments to this |
563 | expression, not within the expression itself, so no additional | |
564 | checking is required here, the outer expression iteration code | |
565 | will take care of checking each argument. */ | |
566 | break; | |
567 | ||
568 | default: | |
569 | return operator_check_standard (exp, pos, objfile_func, data); | |
570 | } | |
571 | ||
572 | return 0; | |
573 | } | |
574 | ||
56618e20 TT |
575 | static const char *f_extensions[] = |
576 | { | |
577 | ".f", ".F", ".for", ".FOR", ".ftn", ".FTN", ".fpp", ".FPP", | |
578 | ".f90", ".F90", ".f95", ".F95", ".f03", ".F03", ".f08", ".F08", | |
579 | NULL | |
580 | }; | |
581 | ||
9dad4a58 AB |
582 | /* Expression processing for Fortran. */ |
583 | static const struct exp_descriptor exp_descriptor_f = | |
584 | { | |
83228e93 AB |
585 | print_subexp_f, |
586 | operator_length_f, | |
587 | operator_check_f, | |
588 | op_name_f, | |
589 | dump_subexp_body_f, | |
9dad4a58 AB |
590 | evaluate_subexp_f |
591 | }; | |
592 | ||
0874fd07 AB |
593 | /* Constant data that describes the Fortran language. */ |
594 | ||
595 | extern const struct language_data f_language_data = | |
c5aa993b | 596 | { |
c906108c | 597 | "fortran", |
6abde28f | 598 | "Fortran", |
c906108c | 599 | language_fortran, |
c906108c | 600 | range_check_on, |
63872f9d | 601 | case_sensitive_off, |
7ca2d3a3 | 602 | array_column_major, |
9a044a89 | 603 | macro_expansion_no, |
56618e20 | 604 | f_extensions, |
9dad4a58 | 605 | &exp_descriptor_f, |
c906108c | 606 | f_parse, /* parser */ |
e85c3284 | 607 | null_post_parser, |
c906108c SS |
608 | f_printchar, /* Print character constant */ |
609 | f_printstr, /* function to print string constant */ | |
610 | f_emit_char, /* Function to print a single character */ | |
c5aa993b | 611 | f_print_type, /* Print a type using appropriate syntax */ |
1f20c35e | 612 | f_print_typedef, /* Print a typedef using appropriate syntax */ |
24051bbe | 613 | f_value_print_innner, /* la_value_print_inner */ |
c5aa993b | 614 | c_value_print, /* FIXME */ |
f636b87d | 615 | NULL, /* Language specific skip_trampoline */ |
2b2d9e11 | 616 | NULL, /* name_of_this */ |
59cc4834 | 617 | false, /* la_store_sym_names_in_linkage_form_p */ |
f55ee35c | 618 | cp_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */ |
8b302db8 TT |
619 | |
620 | /* We could support demangling here to provide module namespaces | |
621 | also for inferiors with only minimal symbol table (ELF symbols). | |
622 | Just the mangling standard is not standardized across compilers | |
623 | and there is no DW_AT_producer available for inferiors with only | |
624 | the ELF symbols to check the mangling kind. */ | |
9a3d7dfd | 625 | NULL, /* Language specific symbol demangler */ |
3e43a32a MS |
626 | NULL, /* Language specific |
627 | class_name_from_physname */ | |
c906108c SS |
628 | f_op_print_tab, /* expression operators for printing */ |
629 | 0, /* arrays are first-class (not c-style) */ | |
630 | 1, /* String lower bound */ | |
f55ee35c | 631 | f_word_break_characters, |
eb3ff9a5 | 632 | f_collect_symbol_completion_matches, |
43cc5389 | 633 | c_watch_location_expression, |
179aed7f | 634 | cp_get_symbol_name_matcher, /* la_get_symbol_name_matcher */ |
a53b64ea | 635 | &default_varobj_ops, |
bb2ec1b3 | 636 | NULL, |
4be290b2 | 637 | f_is_string_type_p, |
721b08c6 | 638 | "(...)" /* la_struct_too_deep_ellipsis */ |
c5aa993b | 639 | }; |
c906108c | 640 | |
0874fd07 AB |
641 | /* Class representing the Fortran language. */ |
642 | ||
643 | class f_language : public language_defn | |
644 | { | |
645 | public: | |
646 | f_language () | |
647 | : language_defn (language_fortran, f_language_data) | |
648 | { /* Nothing. */ } | |
1fb314aa AB |
649 | |
650 | /* See language.h. */ | |
651 | void language_arch_info (struct gdbarch *gdbarch, | |
652 | struct language_arch_info *lai) const override | |
653 | { | |
654 | const struct builtin_f_type *builtin = builtin_f_type (gdbarch); | |
655 | ||
656 | lai->string_char_type = builtin->builtin_character; | |
657 | lai->primitive_type_vector | |
658 | = GDBARCH_OBSTACK_CALLOC (gdbarch, nr_f_primitive_types + 1, | |
659 | struct type *); | |
660 | ||
661 | lai->primitive_type_vector [f_primitive_type_character] | |
662 | = builtin->builtin_character; | |
663 | lai->primitive_type_vector [f_primitive_type_logical] | |
664 | = builtin->builtin_logical; | |
665 | lai->primitive_type_vector [f_primitive_type_logical_s1] | |
666 | = builtin->builtin_logical_s1; | |
667 | lai->primitive_type_vector [f_primitive_type_logical_s2] | |
668 | = builtin->builtin_logical_s2; | |
669 | lai->primitive_type_vector [f_primitive_type_logical_s8] | |
670 | = builtin->builtin_logical_s8; | |
671 | lai->primitive_type_vector [f_primitive_type_real] | |
672 | = builtin->builtin_real; | |
673 | lai->primitive_type_vector [f_primitive_type_real_s8] | |
674 | = builtin->builtin_real_s8; | |
675 | lai->primitive_type_vector [f_primitive_type_real_s16] | |
676 | = builtin->builtin_real_s16; | |
677 | lai->primitive_type_vector [f_primitive_type_complex_s8] | |
678 | = builtin->builtin_complex_s8; | |
679 | lai->primitive_type_vector [f_primitive_type_complex_s16] | |
680 | = builtin->builtin_complex_s16; | |
681 | lai->primitive_type_vector [f_primitive_type_void] | |
682 | = builtin->builtin_void; | |
683 | ||
684 | lai->bool_type_symbol = "logical"; | |
685 | lai->bool_type_default = builtin->builtin_logical_s2; | |
686 | } | |
fb8006fd AB |
687 | |
688 | /* See language.h. */ | |
689 | unsigned int search_name_hash (const char *name) const override | |
690 | { | |
691 | return cp_search_name_hash (name); | |
692 | } | |
0874fd07 AB |
693 | }; |
694 | ||
695 | /* Single instance of the Fortran language class. */ | |
696 | ||
697 | static f_language f_language_defn; | |
698 | ||
54ef06c7 UW |
699 | static void * |
700 | build_fortran_types (struct gdbarch *gdbarch) | |
c906108c | 701 | { |
54ef06c7 UW |
702 | struct builtin_f_type *builtin_f_type |
703 | = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct builtin_f_type); | |
704 | ||
e9bb382b | 705 | builtin_f_type->builtin_void |
bbe75b9d | 706 | = arch_type (gdbarch, TYPE_CODE_VOID, TARGET_CHAR_BIT, "void"); |
e9bb382b UW |
707 | |
708 | builtin_f_type->builtin_character | |
4a270568 | 709 | = arch_type (gdbarch, TYPE_CODE_CHAR, TARGET_CHAR_BIT, "character"); |
e9bb382b UW |
710 | |
711 | builtin_f_type->builtin_logical_s1 | |
712 | = arch_boolean_type (gdbarch, TARGET_CHAR_BIT, 1, "logical*1"); | |
713 | ||
714 | builtin_f_type->builtin_integer_s2 | |
715 | = arch_integer_type (gdbarch, gdbarch_short_bit (gdbarch), 0, | |
716 | "integer*2"); | |
717 | ||
067630bd AB |
718 | builtin_f_type->builtin_integer_s8 |
719 | = arch_integer_type (gdbarch, gdbarch_long_long_bit (gdbarch), 0, | |
720 | "integer*8"); | |
721 | ||
e9bb382b UW |
722 | builtin_f_type->builtin_logical_s2 |
723 | = arch_boolean_type (gdbarch, gdbarch_short_bit (gdbarch), 1, | |
724 | "logical*2"); | |
725 | ||
ce4b0682 SDJ |
726 | builtin_f_type->builtin_logical_s8 |
727 | = arch_boolean_type (gdbarch, gdbarch_long_long_bit (gdbarch), 1, | |
728 | "logical*8"); | |
729 | ||
e9bb382b UW |
730 | builtin_f_type->builtin_integer |
731 | = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), 0, | |
732 | "integer"); | |
733 | ||
734 | builtin_f_type->builtin_logical | |
735 | = arch_boolean_type (gdbarch, gdbarch_int_bit (gdbarch), 1, | |
736 | "logical*4"); | |
737 | ||
738 | builtin_f_type->builtin_real | |
739 | = arch_float_type (gdbarch, gdbarch_float_bit (gdbarch), | |
49f190bc | 740 | "real", gdbarch_float_format (gdbarch)); |
e9bb382b UW |
741 | builtin_f_type->builtin_real_s8 |
742 | = arch_float_type (gdbarch, gdbarch_double_bit (gdbarch), | |
49f190bc | 743 | "real*8", gdbarch_double_format (gdbarch)); |
34d11c68 | 744 | auto fmt = gdbarch_floatformat_for_type (gdbarch, "real(kind=16)", 128); |
dc42e902 AB |
745 | if (fmt != nullptr) |
746 | builtin_f_type->builtin_real_s16 | |
747 | = arch_float_type (gdbarch, 128, "real*16", fmt); | |
748 | else if (gdbarch_long_double_bit (gdbarch) == 128) | |
749 | builtin_f_type->builtin_real_s16 | |
750 | = arch_float_type (gdbarch, gdbarch_long_double_bit (gdbarch), | |
751 | "real*16", gdbarch_long_double_format (gdbarch)); | |
752 | else | |
753 | builtin_f_type->builtin_real_s16 | |
754 | = arch_type (gdbarch, TYPE_CODE_ERROR, 128, "real*16"); | |
e9bb382b UW |
755 | |
756 | builtin_f_type->builtin_complex_s8 | |
5b930b45 | 757 | = init_complex_type ("complex*8", builtin_f_type->builtin_real); |
e9bb382b | 758 | builtin_f_type->builtin_complex_s16 |
5b930b45 | 759 | = init_complex_type ("complex*16", builtin_f_type->builtin_real_s8); |
0830d301 | 760 | |
78134374 | 761 | if (builtin_f_type->builtin_real_s16->code () == TYPE_CODE_ERROR) |
0830d301 TT |
762 | builtin_f_type->builtin_complex_s32 |
763 | = arch_type (gdbarch, TYPE_CODE_ERROR, 256, "complex*32"); | |
764 | else | |
765 | builtin_f_type->builtin_complex_s32 | |
766 | = init_complex_type ("complex*32", builtin_f_type->builtin_real_s16); | |
54ef06c7 UW |
767 | |
768 | return builtin_f_type; | |
769 | } | |
770 | ||
771 | static struct gdbarch_data *f_type_data; | |
772 | ||
773 | const struct builtin_f_type * | |
774 | builtin_f_type (struct gdbarch *gdbarch) | |
775 | { | |
9a3c8263 | 776 | return (const struct builtin_f_type *) gdbarch_data (gdbarch, f_type_data); |
4e845cd3 MS |
777 | } |
778 | ||
6c265988 | 779 | void _initialize_f_language (); |
4e845cd3 | 780 | void |
6c265988 | 781 | _initialize_f_language () |
4e845cd3 | 782 | { |
54ef06c7 | 783 | f_type_data = gdbarch_data_register_post_init (build_fortran_types); |
c906108c | 784 | } |
aa3cfbda RB |
785 | |
786 | /* See f-lang.h. */ | |
787 | ||
788 | struct value * | |
789 | fortran_argument_convert (struct value *value, bool is_artificial) | |
790 | { | |
791 | if (!is_artificial) | |
792 | { | |
793 | /* If the value is not in the inferior e.g. registers values, | |
794 | convenience variables and user input. */ | |
795 | if (VALUE_LVAL (value) != lval_memory) | |
796 | { | |
797 | struct type *type = value_type (value); | |
798 | const int length = TYPE_LENGTH (type); | |
799 | const CORE_ADDR addr | |
800 | = value_as_long (value_allocate_space_in_inferior (length)); | |
801 | write_memory (addr, value_contents (value), length); | |
802 | struct value *val | |
803 | = value_from_contents_and_address (type, value_contents (value), | |
804 | addr); | |
805 | return value_addr (val); | |
806 | } | |
807 | else | |
808 | return value_addr (value); /* Program variables, e.g. arrays. */ | |
809 | } | |
810 | return value; | |
811 | } | |
812 | ||
813 | /* See f-lang.h. */ | |
814 | ||
815 | struct type * | |
816 | fortran_preserve_arg_pointer (struct value *arg, struct type *type) | |
817 | { | |
78134374 | 818 | if (value_type (arg)->code () == TYPE_CODE_PTR) |
aa3cfbda RB |
819 | return value_type (arg); |
820 | return type; | |
821 | } |