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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 | ||
9dad4a58 | 168 | /* Special expression evaluation cases for Fortran. */ |
cb8c24b6 SM |
169 | |
170 | static struct value * | |
9dad4a58 AB |
171 | evaluate_subexp_f (struct type *expect_type, struct expression *exp, |
172 | int *pos, enum noside noside) | |
173 | { | |
b6d03bb2 | 174 | struct value *arg1 = NULL, *arg2 = NULL; |
4d00f5d8 AB |
175 | enum exp_opcode op; |
176 | int pc; | |
177 | struct type *type; | |
178 | ||
179 | pc = *pos; | |
180 | *pos += 1; | |
181 | op = exp->elts[pc].opcode; | |
182 | ||
183 | switch (op) | |
184 | { | |
185 | default: | |
186 | *pos -= 1; | |
187 | return evaluate_subexp_standard (expect_type, exp, pos, noside); | |
188 | ||
0841c79a AB |
189 | case UNOP_ABS: |
190 | arg1 = evaluate_subexp (NULL_TYPE, exp, pos, noside); | |
191 | if (noside == EVAL_SKIP) | |
192 | return eval_skip_value (exp); | |
193 | type = value_type (arg1); | |
78134374 | 194 | switch (type->code ()) |
0841c79a AB |
195 | { |
196 | case TYPE_CODE_FLT: | |
197 | { | |
198 | double d | |
199 | = fabs (target_float_to_host_double (value_contents (arg1), | |
200 | value_type (arg1))); | |
201 | return value_from_host_double (type, d); | |
202 | } | |
203 | case TYPE_CODE_INT: | |
204 | { | |
205 | LONGEST l = value_as_long (arg1); | |
206 | l = llabs (l); | |
207 | return value_from_longest (type, l); | |
208 | } | |
209 | } | |
210 | error (_("ABS of type %s not supported"), TYPE_SAFE_NAME (type)); | |
211 | ||
b6d03bb2 AB |
212 | case BINOP_MOD: |
213 | arg1 = evaluate_subexp (NULL_TYPE, exp, pos, noside); | |
214 | arg2 = evaluate_subexp (value_type (arg1), exp, pos, noside); | |
215 | if (noside == EVAL_SKIP) | |
216 | return eval_skip_value (exp); | |
217 | type = value_type (arg1); | |
78134374 | 218 | if (type->code () != value_type (arg2)->code ()) |
b6d03bb2 | 219 | error (_("non-matching types for parameters to MOD ()")); |
78134374 | 220 | switch (type->code ()) |
b6d03bb2 AB |
221 | { |
222 | case TYPE_CODE_FLT: | |
223 | { | |
224 | double d1 | |
225 | = target_float_to_host_double (value_contents (arg1), | |
226 | value_type (arg1)); | |
227 | double d2 | |
228 | = target_float_to_host_double (value_contents (arg2), | |
229 | value_type (arg2)); | |
230 | double d3 = fmod (d1, d2); | |
231 | return value_from_host_double (type, d3); | |
232 | } | |
233 | case TYPE_CODE_INT: | |
234 | { | |
235 | LONGEST v1 = value_as_long (arg1); | |
236 | LONGEST v2 = value_as_long (arg2); | |
237 | if (v2 == 0) | |
238 | error (_("calling MOD (N, 0) is undefined")); | |
239 | LONGEST v3 = v1 - (v1 / v2) * v2; | |
240 | return value_from_longest (value_type (arg1), v3); | |
241 | } | |
242 | } | |
243 | error (_("MOD of type %s not supported"), TYPE_SAFE_NAME (type)); | |
244 | ||
245 | case UNOP_FORTRAN_CEILING: | |
246 | { | |
247 | arg1 = evaluate_subexp (NULL_TYPE, exp, pos, noside); | |
248 | if (noside == EVAL_SKIP) | |
249 | return eval_skip_value (exp); | |
250 | type = value_type (arg1); | |
78134374 | 251 | if (type->code () != TYPE_CODE_FLT) |
b6d03bb2 AB |
252 | error (_("argument to CEILING must be of type float")); |
253 | double val | |
254 | = target_float_to_host_double (value_contents (arg1), | |
255 | value_type (arg1)); | |
256 | val = ceil (val); | |
257 | return value_from_host_double (type, val); | |
258 | } | |
259 | ||
260 | case UNOP_FORTRAN_FLOOR: | |
261 | { | |
262 | arg1 = evaluate_subexp (NULL_TYPE, exp, pos, noside); | |
263 | if (noside == EVAL_SKIP) | |
264 | return eval_skip_value (exp); | |
265 | type = value_type (arg1); | |
78134374 | 266 | if (type->code () != TYPE_CODE_FLT) |
b6d03bb2 AB |
267 | error (_("argument to FLOOR must be of type float")); |
268 | double val | |
269 | = target_float_to_host_double (value_contents (arg1), | |
270 | value_type (arg1)); | |
271 | val = floor (val); | |
272 | return value_from_host_double (type, val); | |
273 | } | |
274 | ||
275 | case BINOP_FORTRAN_MODULO: | |
276 | { | |
277 | arg1 = evaluate_subexp (NULL_TYPE, exp, pos, noside); | |
278 | arg2 = evaluate_subexp (value_type (arg1), exp, pos, noside); | |
279 | if (noside == EVAL_SKIP) | |
280 | return eval_skip_value (exp); | |
281 | type = value_type (arg1); | |
78134374 | 282 | if (type->code () != value_type (arg2)->code ()) |
b6d03bb2 AB |
283 | error (_("non-matching types for parameters to MODULO ()")); |
284 | /* MODULO(A, P) = A - FLOOR (A / P) * P */ | |
78134374 | 285 | switch (type->code ()) |
b6d03bb2 AB |
286 | { |
287 | case TYPE_CODE_INT: | |
288 | { | |
289 | LONGEST a = value_as_long (arg1); | |
290 | LONGEST p = value_as_long (arg2); | |
291 | LONGEST result = a - (a / p) * p; | |
292 | if (result != 0 && (a < 0) != (p < 0)) | |
293 | result += p; | |
294 | return value_from_longest (value_type (arg1), result); | |
295 | } | |
296 | case TYPE_CODE_FLT: | |
297 | { | |
298 | double a | |
299 | = target_float_to_host_double (value_contents (arg1), | |
300 | value_type (arg1)); | |
301 | double p | |
302 | = target_float_to_host_double (value_contents (arg2), | |
303 | value_type (arg2)); | |
304 | double result = fmod (a, p); | |
305 | if (result != 0 && (a < 0.0) != (p < 0.0)) | |
306 | result += p; | |
307 | return value_from_host_double (type, result); | |
308 | } | |
309 | } | |
310 | error (_("MODULO of type %s not supported"), TYPE_SAFE_NAME (type)); | |
311 | } | |
312 | ||
313 | case BINOP_FORTRAN_CMPLX: | |
314 | arg1 = evaluate_subexp (NULL_TYPE, exp, pos, noside); | |
315 | arg2 = evaluate_subexp (value_type (arg1), exp, pos, noside); | |
316 | if (noside == EVAL_SKIP) | |
317 | return eval_skip_value (exp); | |
318 | type = builtin_f_type(exp->gdbarch)->builtin_complex_s16; | |
319 | return value_literal_complex (arg1, arg2, type); | |
320 | ||
83228e93 | 321 | case UNOP_FORTRAN_KIND: |
4d00f5d8 AB |
322 | arg1 = evaluate_subexp (NULL, exp, pos, EVAL_AVOID_SIDE_EFFECTS); |
323 | type = value_type (arg1); | |
324 | ||
78134374 | 325 | switch (type->code ()) |
4d00f5d8 AB |
326 | { |
327 | case TYPE_CODE_STRUCT: | |
328 | case TYPE_CODE_UNION: | |
329 | case TYPE_CODE_MODULE: | |
330 | case TYPE_CODE_FUNC: | |
331 | error (_("argument to kind must be an intrinsic type")); | |
332 | } | |
333 | ||
334 | if (!TYPE_TARGET_TYPE (type)) | |
335 | return value_from_longest (builtin_type (exp->gdbarch)->builtin_int, | |
336 | TYPE_LENGTH (type)); | |
337 | return value_from_longest (builtin_type (exp->gdbarch)->builtin_int, | |
78134374 | 338 | TYPE_LENGTH (TYPE_TARGET_TYPE (type))); |
4d00f5d8 AB |
339 | } |
340 | ||
341 | /* Should be unreachable. */ | |
342 | return nullptr; | |
9dad4a58 AB |
343 | } |
344 | ||
4be290b2 AB |
345 | /* Return true if TYPE is a string. */ |
346 | ||
347 | static bool | |
348 | f_is_string_type_p (struct type *type) | |
349 | { | |
350 | type = check_typedef (type); | |
78134374 SM |
351 | return (type->code () == TYPE_CODE_STRING |
352 | || (type->code () == TYPE_CODE_ARRAY | |
353 | && TYPE_TARGET_TYPE (type)->code () == TYPE_CODE_CHAR)); | |
4be290b2 AB |
354 | } |
355 | ||
83228e93 AB |
356 | /* Special expression lengths for Fortran. */ |
357 | ||
358 | static void | |
359 | operator_length_f (const struct expression *exp, int pc, int *oplenp, | |
360 | int *argsp) | |
361 | { | |
362 | int oplen = 1; | |
363 | int args = 0; | |
364 | ||
365 | switch (exp->elts[pc - 1].opcode) | |
366 | { | |
367 | default: | |
368 | operator_length_standard (exp, pc, oplenp, argsp); | |
369 | return; | |
370 | ||
371 | case UNOP_FORTRAN_KIND: | |
b6d03bb2 AB |
372 | case UNOP_FORTRAN_FLOOR: |
373 | case UNOP_FORTRAN_CEILING: | |
83228e93 AB |
374 | oplen = 1; |
375 | args = 1; | |
376 | break; | |
b6d03bb2 AB |
377 | |
378 | case BINOP_FORTRAN_CMPLX: | |
379 | case BINOP_FORTRAN_MODULO: | |
380 | oplen = 1; | |
381 | args = 2; | |
382 | break; | |
83228e93 AB |
383 | } |
384 | ||
385 | *oplenp = oplen; | |
386 | *argsp = args; | |
387 | } | |
388 | ||
b6d03bb2 AB |
389 | /* Helper for PRINT_SUBEXP_F. Arguments are as for PRINT_SUBEXP_F, except |
390 | the extra argument NAME which is the text that should be printed as the | |
391 | name of this operation. */ | |
392 | ||
393 | static void | |
394 | print_unop_subexp_f (struct expression *exp, int *pos, | |
395 | struct ui_file *stream, enum precedence prec, | |
396 | const char *name) | |
397 | { | |
398 | (*pos)++; | |
399 | fprintf_filtered (stream, "%s(", name); | |
400 | print_subexp (exp, pos, stream, PREC_SUFFIX); | |
401 | fputs_filtered (")", stream); | |
402 | } | |
403 | ||
404 | /* Helper for PRINT_SUBEXP_F. Arguments are as for PRINT_SUBEXP_F, except | |
405 | the extra argument NAME which is the text that should be printed as the | |
406 | name of this operation. */ | |
407 | ||
408 | static void | |
409 | print_binop_subexp_f (struct expression *exp, int *pos, | |
410 | struct ui_file *stream, enum precedence prec, | |
411 | const char *name) | |
412 | { | |
413 | (*pos)++; | |
414 | fprintf_filtered (stream, "%s(", name); | |
415 | print_subexp (exp, pos, stream, PREC_SUFFIX); | |
416 | fputs_filtered (",", stream); | |
417 | print_subexp (exp, pos, stream, PREC_SUFFIX); | |
418 | fputs_filtered (")", stream); | |
419 | } | |
420 | ||
83228e93 AB |
421 | /* Special expression printing for Fortran. */ |
422 | ||
423 | static void | |
424 | print_subexp_f (struct expression *exp, int *pos, | |
425 | struct ui_file *stream, enum precedence prec) | |
426 | { | |
427 | int pc = *pos; | |
428 | enum exp_opcode op = exp->elts[pc].opcode; | |
429 | ||
430 | switch (op) | |
431 | { | |
432 | default: | |
433 | print_subexp_standard (exp, pos, stream, prec); | |
434 | return; | |
435 | ||
436 | case UNOP_FORTRAN_KIND: | |
b6d03bb2 AB |
437 | print_unop_subexp_f (exp, pos, stream, prec, "KIND"); |
438 | return; | |
439 | ||
440 | case UNOP_FORTRAN_FLOOR: | |
441 | print_unop_subexp_f (exp, pos, stream, prec, "FLOOR"); | |
442 | return; | |
443 | ||
444 | case UNOP_FORTRAN_CEILING: | |
445 | print_unop_subexp_f (exp, pos, stream, prec, "CEILING"); | |
446 | return; | |
447 | ||
448 | case BINOP_FORTRAN_CMPLX: | |
449 | print_binop_subexp_f (exp, pos, stream, prec, "CMPLX"); | |
450 | return; | |
451 | ||
452 | case BINOP_FORTRAN_MODULO: | |
453 | print_binop_subexp_f (exp, pos, stream, prec, "MODULO"); | |
83228e93 AB |
454 | return; |
455 | } | |
456 | } | |
457 | ||
458 | /* Special expression names for Fortran. */ | |
459 | ||
460 | static const char * | |
461 | op_name_f (enum exp_opcode opcode) | |
462 | { | |
463 | switch (opcode) | |
464 | { | |
465 | default: | |
466 | return op_name_standard (opcode); | |
467 | ||
468 | #define OP(name) \ | |
469 | case name: \ | |
470 | return #name ; | |
471 | #include "fortran-operator.def" | |
472 | #undef OP | |
473 | } | |
474 | } | |
475 | ||
476 | /* Special expression dumping for Fortran. */ | |
477 | ||
478 | static int | |
479 | dump_subexp_body_f (struct expression *exp, | |
480 | struct ui_file *stream, int elt) | |
481 | { | |
482 | int opcode = exp->elts[elt].opcode; | |
483 | int oplen, nargs, i; | |
484 | ||
485 | switch (opcode) | |
486 | { | |
487 | default: | |
488 | return dump_subexp_body_standard (exp, stream, elt); | |
489 | ||
490 | case UNOP_FORTRAN_KIND: | |
b6d03bb2 AB |
491 | case UNOP_FORTRAN_FLOOR: |
492 | case UNOP_FORTRAN_CEILING: | |
493 | case BINOP_FORTRAN_CMPLX: | |
494 | case BINOP_FORTRAN_MODULO: | |
83228e93 AB |
495 | operator_length_f (exp, (elt + 1), &oplen, &nargs); |
496 | break; | |
497 | } | |
498 | ||
499 | elt += oplen; | |
500 | for (i = 0; i < nargs; i += 1) | |
501 | elt = dump_subexp (exp, stream, elt); | |
502 | ||
503 | return elt; | |
504 | } | |
505 | ||
506 | /* Special expression checking for Fortran. */ | |
507 | ||
508 | static int | |
509 | operator_check_f (struct expression *exp, int pos, | |
510 | int (*objfile_func) (struct objfile *objfile, | |
511 | void *data), | |
512 | void *data) | |
513 | { | |
514 | const union exp_element *const elts = exp->elts; | |
515 | ||
516 | switch (elts[pos].opcode) | |
517 | { | |
518 | case UNOP_FORTRAN_KIND: | |
b6d03bb2 AB |
519 | case UNOP_FORTRAN_FLOOR: |
520 | case UNOP_FORTRAN_CEILING: | |
521 | case BINOP_FORTRAN_CMPLX: | |
522 | case BINOP_FORTRAN_MODULO: | |
83228e93 AB |
523 | /* Any references to objfiles are held in the arguments to this |
524 | expression, not within the expression itself, so no additional | |
525 | checking is required here, the outer expression iteration code | |
526 | will take care of checking each argument. */ | |
527 | break; | |
528 | ||
529 | default: | |
530 | return operator_check_standard (exp, pos, objfile_func, data); | |
531 | } | |
532 | ||
533 | return 0; | |
534 | } | |
535 | ||
56618e20 TT |
536 | static const char *f_extensions[] = |
537 | { | |
538 | ".f", ".F", ".for", ".FOR", ".ftn", ".FTN", ".fpp", ".FPP", | |
539 | ".f90", ".F90", ".f95", ".F95", ".f03", ".F03", ".f08", ".F08", | |
540 | NULL | |
541 | }; | |
542 | ||
9dad4a58 AB |
543 | /* Expression processing for Fortran. */ |
544 | static const struct exp_descriptor exp_descriptor_f = | |
545 | { | |
83228e93 AB |
546 | print_subexp_f, |
547 | operator_length_f, | |
548 | operator_check_f, | |
549 | op_name_f, | |
550 | dump_subexp_body_f, | |
9dad4a58 AB |
551 | evaluate_subexp_f |
552 | }; | |
553 | ||
0874fd07 AB |
554 | /* Constant data that describes the Fortran language. */ |
555 | ||
556 | extern const struct language_data f_language_data = | |
c5aa993b | 557 | { |
c906108c | 558 | "fortran", |
6abde28f | 559 | "Fortran", |
c906108c | 560 | language_fortran, |
c906108c | 561 | range_check_on, |
63872f9d | 562 | case_sensitive_off, |
7ca2d3a3 | 563 | array_column_major, |
9a044a89 | 564 | macro_expansion_no, |
56618e20 | 565 | f_extensions, |
9dad4a58 | 566 | &exp_descriptor_f, |
c906108c | 567 | f_parse, /* parser */ |
e85c3284 | 568 | null_post_parser, |
c906108c SS |
569 | f_printchar, /* Print character constant */ |
570 | f_printstr, /* function to print string constant */ | |
571 | f_emit_char, /* Function to print a single character */ | |
1f20c35e | 572 | f_print_typedef, /* Print a typedef using appropriate syntax */ |
24051bbe | 573 | f_value_print_innner, /* la_value_print_inner */ |
2b2d9e11 | 574 | NULL, /* name_of_this */ |
59cc4834 | 575 | false, /* la_store_sym_names_in_linkage_form_p */ |
f55ee35c | 576 | cp_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */ |
c906108c SS |
577 | f_op_print_tab, /* expression operators for printing */ |
578 | 0, /* arrays are first-class (not c-style) */ | |
579 | 1, /* String lower bound */ | |
a53b64ea | 580 | &default_varobj_ops, |
4be290b2 | 581 | f_is_string_type_p, |
721b08c6 | 582 | "(...)" /* la_struct_too_deep_ellipsis */ |
c5aa993b | 583 | }; |
c906108c | 584 | |
0874fd07 AB |
585 | /* Class representing the Fortran language. */ |
586 | ||
587 | class f_language : public language_defn | |
588 | { | |
589 | public: | |
590 | f_language () | |
591 | : language_defn (language_fortran, f_language_data) | |
592 | { /* Nothing. */ } | |
1fb314aa AB |
593 | |
594 | /* See language.h. */ | |
595 | void language_arch_info (struct gdbarch *gdbarch, | |
596 | struct language_arch_info *lai) const override | |
597 | { | |
598 | const struct builtin_f_type *builtin = builtin_f_type (gdbarch); | |
599 | ||
600 | lai->string_char_type = builtin->builtin_character; | |
601 | lai->primitive_type_vector | |
602 | = GDBARCH_OBSTACK_CALLOC (gdbarch, nr_f_primitive_types + 1, | |
603 | struct type *); | |
604 | ||
605 | lai->primitive_type_vector [f_primitive_type_character] | |
606 | = builtin->builtin_character; | |
607 | lai->primitive_type_vector [f_primitive_type_logical] | |
608 | = builtin->builtin_logical; | |
609 | lai->primitive_type_vector [f_primitive_type_logical_s1] | |
610 | = builtin->builtin_logical_s1; | |
611 | lai->primitive_type_vector [f_primitive_type_logical_s2] | |
612 | = builtin->builtin_logical_s2; | |
613 | lai->primitive_type_vector [f_primitive_type_logical_s8] | |
614 | = builtin->builtin_logical_s8; | |
615 | lai->primitive_type_vector [f_primitive_type_real] | |
616 | = builtin->builtin_real; | |
617 | lai->primitive_type_vector [f_primitive_type_real_s8] | |
618 | = builtin->builtin_real_s8; | |
619 | lai->primitive_type_vector [f_primitive_type_real_s16] | |
620 | = builtin->builtin_real_s16; | |
621 | lai->primitive_type_vector [f_primitive_type_complex_s8] | |
622 | = builtin->builtin_complex_s8; | |
623 | lai->primitive_type_vector [f_primitive_type_complex_s16] | |
624 | = builtin->builtin_complex_s16; | |
625 | lai->primitive_type_vector [f_primitive_type_void] | |
626 | = builtin->builtin_void; | |
627 | ||
628 | lai->bool_type_symbol = "logical"; | |
629 | lai->bool_type_default = builtin->builtin_logical_s2; | |
630 | } | |
fb8006fd AB |
631 | |
632 | /* See language.h. */ | |
633 | unsigned int search_name_hash (const char *name) const override | |
634 | { | |
635 | return cp_search_name_hash (name); | |
636 | } | |
fbfb0a46 AB |
637 | |
638 | /* See language.h. */ | |
639 | ||
0a50df5d AB |
640 | char *demangle (const char *mangled, int options) const override |
641 | { | |
642 | /* We could support demangling here to provide module namespaces | |
643 | also for inferiors with only minimal symbol table (ELF symbols). | |
644 | Just the mangling standard is not standardized across compilers | |
645 | and there is no DW_AT_producer available for inferiors with only | |
646 | the ELF symbols to check the mangling kind. */ | |
647 | return nullptr; | |
648 | } | |
649 | ||
650 | /* See language.h. */ | |
651 | ||
fbfb0a46 AB |
652 | void print_type (struct type *type, const char *varstring, |
653 | struct ui_file *stream, int show, int level, | |
654 | const struct type_print_options *flags) const override | |
655 | { | |
656 | f_print_type (type, varstring, stream, show, level, flags); | |
657 | } | |
c9debfb9 | 658 | |
53fc67f8 AB |
659 | /* See language.h. This just returns default set of word break |
660 | characters but with the modules separator `::' removed. */ | |
661 | ||
662 | const char *word_break_characters (void) const override | |
663 | { | |
664 | static char *retval; | |
665 | ||
666 | if (!retval) | |
667 | { | |
668 | char *s; | |
669 | ||
670 | retval = xstrdup (language_defn::word_break_characters ()); | |
671 | s = strchr (retval, ':'); | |
672 | if (s) | |
673 | { | |
674 | char *last_char = &s[strlen (s) - 1]; | |
675 | ||
676 | *s = *last_char; | |
677 | *last_char = 0; | |
678 | } | |
679 | } | |
680 | return retval; | |
681 | } | |
682 | ||
7e56227d AB |
683 | |
684 | /* See language.h. */ | |
685 | ||
686 | void collect_symbol_completion_matches (completion_tracker &tracker, | |
687 | complete_symbol_mode mode, | |
688 | symbol_name_match_type name_match_type, | |
689 | const char *text, const char *word, | |
690 | enum type_code code) const override | |
691 | { | |
692 | /* Consider the modules separator :: as a valid symbol name character | |
693 | class. */ | |
694 | default_collect_symbol_completion_matches_break_on (tracker, mode, | |
695 | name_match_type, | |
696 | text, word, ":", | |
697 | code); | |
698 | } | |
699 | ||
c9debfb9 AB |
700 | protected: |
701 | ||
702 | /* See language.h. */ | |
703 | ||
704 | symbol_name_matcher_ftype *get_symbol_name_matcher_inner | |
705 | (const lookup_name_info &lookup_name) const override | |
706 | { | |
707 | return cp_get_symbol_name_matcher (lookup_name); | |
708 | } | |
0874fd07 AB |
709 | }; |
710 | ||
711 | /* Single instance of the Fortran language class. */ | |
712 | ||
713 | static f_language f_language_defn; | |
714 | ||
54ef06c7 UW |
715 | static void * |
716 | build_fortran_types (struct gdbarch *gdbarch) | |
c906108c | 717 | { |
54ef06c7 UW |
718 | struct builtin_f_type *builtin_f_type |
719 | = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct builtin_f_type); | |
720 | ||
e9bb382b | 721 | builtin_f_type->builtin_void |
bbe75b9d | 722 | = arch_type (gdbarch, TYPE_CODE_VOID, TARGET_CHAR_BIT, "void"); |
e9bb382b UW |
723 | |
724 | builtin_f_type->builtin_character | |
4a270568 | 725 | = arch_type (gdbarch, TYPE_CODE_CHAR, TARGET_CHAR_BIT, "character"); |
e9bb382b UW |
726 | |
727 | builtin_f_type->builtin_logical_s1 | |
728 | = arch_boolean_type (gdbarch, TARGET_CHAR_BIT, 1, "logical*1"); | |
729 | ||
730 | builtin_f_type->builtin_integer_s2 | |
731 | = arch_integer_type (gdbarch, gdbarch_short_bit (gdbarch), 0, | |
732 | "integer*2"); | |
733 | ||
067630bd AB |
734 | builtin_f_type->builtin_integer_s8 |
735 | = arch_integer_type (gdbarch, gdbarch_long_long_bit (gdbarch), 0, | |
736 | "integer*8"); | |
737 | ||
e9bb382b UW |
738 | builtin_f_type->builtin_logical_s2 |
739 | = arch_boolean_type (gdbarch, gdbarch_short_bit (gdbarch), 1, | |
740 | "logical*2"); | |
741 | ||
ce4b0682 SDJ |
742 | builtin_f_type->builtin_logical_s8 |
743 | = arch_boolean_type (gdbarch, gdbarch_long_long_bit (gdbarch), 1, | |
744 | "logical*8"); | |
745 | ||
e9bb382b UW |
746 | builtin_f_type->builtin_integer |
747 | = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), 0, | |
748 | "integer"); | |
749 | ||
750 | builtin_f_type->builtin_logical | |
751 | = arch_boolean_type (gdbarch, gdbarch_int_bit (gdbarch), 1, | |
752 | "logical*4"); | |
753 | ||
754 | builtin_f_type->builtin_real | |
755 | = arch_float_type (gdbarch, gdbarch_float_bit (gdbarch), | |
49f190bc | 756 | "real", gdbarch_float_format (gdbarch)); |
e9bb382b UW |
757 | builtin_f_type->builtin_real_s8 |
758 | = arch_float_type (gdbarch, gdbarch_double_bit (gdbarch), | |
49f190bc | 759 | "real*8", gdbarch_double_format (gdbarch)); |
34d11c68 | 760 | auto fmt = gdbarch_floatformat_for_type (gdbarch, "real(kind=16)", 128); |
dc42e902 AB |
761 | if (fmt != nullptr) |
762 | builtin_f_type->builtin_real_s16 | |
763 | = arch_float_type (gdbarch, 128, "real*16", fmt); | |
764 | else if (gdbarch_long_double_bit (gdbarch) == 128) | |
765 | builtin_f_type->builtin_real_s16 | |
766 | = arch_float_type (gdbarch, gdbarch_long_double_bit (gdbarch), | |
767 | "real*16", gdbarch_long_double_format (gdbarch)); | |
768 | else | |
769 | builtin_f_type->builtin_real_s16 | |
770 | = arch_type (gdbarch, TYPE_CODE_ERROR, 128, "real*16"); | |
e9bb382b UW |
771 | |
772 | builtin_f_type->builtin_complex_s8 | |
5b930b45 | 773 | = init_complex_type ("complex*8", builtin_f_type->builtin_real); |
e9bb382b | 774 | builtin_f_type->builtin_complex_s16 |
5b930b45 | 775 | = init_complex_type ("complex*16", builtin_f_type->builtin_real_s8); |
0830d301 | 776 | |
78134374 | 777 | if (builtin_f_type->builtin_real_s16->code () == TYPE_CODE_ERROR) |
0830d301 TT |
778 | builtin_f_type->builtin_complex_s32 |
779 | = arch_type (gdbarch, TYPE_CODE_ERROR, 256, "complex*32"); | |
780 | else | |
781 | builtin_f_type->builtin_complex_s32 | |
782 | = init_complex_type ("complex*32", builtin_f_type->builtin_real_s16); | |
54ef06c7 UW |
783 | |
784 | return builtin_f_type; | |
785 | } | |
786 | ||
787 | static struct gdbarch_data *f_type_data; | |
788 | ||
789 | const struct builtin_f_type * | |
790 | builtin_f_type (struct gdbarch *gdbarch) | |
791 | { | |
9a3c8263 | 792 | return (const struct builtin_f_type *) gdbarch_data (gdbarch, f_type_data); |
4e845cd3 MS |
793 | } |
794 | ||
6c265988 | 795 | void _initialize_f_language (); |
4e845cd3 | 796 | void |
6c265988 | 797 | _initialize_f_language () |
4e845cd3 | 798 | { |
54ef06c7 | 799 | f_type_data = gdbarch_data_register_post_init (build_fortran_types); |
c906108c | 800 | } |
aa3cfbda RB |
801 | |
802 | /* See f-lang.h. */ | |
803 | ||
804 | struct value * | |
805 | fortran_argument_convert (struct value *value, bool is_artificial) | |
806 | { | |
807 | if (!is_artificial) | |
808 | { | |
809 | /* If the value is not in the inferior e.g. registers values, | |
810 | convenience variables and user input. */ | |
811 | if (VALUE_LVAL (value) != lval_memory) | |
812 | { | |
813 | struct type *type = value_type (value); | |
814 | const int length = TYPE_LENGTH (type); | |
815 | const CORE_ADDR addr | |
816 | = value_as_long (value_allocate_space_in_inferior (length)); | |
817 | write_memory (addr, value_contents (value), length); | |
818 | struct value *val | |
819 | = value_from_contents_and_address (type, value_contents (value), | |
820 | addr); | |
821 | return value_addr (val); | |
822 | } | |
823 | else | |
824 | return value_addr (value); /* Program variables, e.g. arrays. */ | |
825 | } | |
826 | return value; | |
827 | } | |
828 | ||
829 | /* See f-lang.h. */ | |
830 | ||
831 | struct type * | |
832 | fortran_preserve_arg_pointer (struct value *arg, struct type *type) | |
833 | { | |
78134374 | 834 | if (value_type (arg)->code () == TYPE_CODE_PTR) |
aa3cfbda RB |
835 | return value_type (arg); |
836 | return type; | |
837 | } |