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c906108c | 1 | /* Fortran language support routines for GDB, the GNU debugger. |
ce27fb25 | 2 | |
42a4f53d | 3 | Copyright (C) 1993-2019 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" | |
38 | ||
39 | #include <math.h> | |
c906108c | 40 | |
c906108c SS |
41 | /* Local functions */ |
42 | ||
6c7a06a3 TT |
43 | static void f_printchar (int c, struct type *type, struct ui_file * stream); |
44 | static void f_emit_char (int c, struct type *type, | |
45 | struct ui_file * stream, int quoter); | |
c906108c | 46 | |
3b2b8fea TT |
47 | /* Return the encoding that should be used for the character type |
48 | TYPE. */ | |
49 | ||
50 | static const char * | |
51 | f_get_encoding (struct type *type) | |
52 | { | |
53 | const char *encoding; | |
54 | ||
55 | switch (TYPE_LENGTH (type)) | |
56 | { | |
57 | case 1: | |
58 | encoding = target_charset (get_type_arch (type)); | |
59 | break; | |
60 | case 4: | |
61 | if (gdbarch_byte_order (get_type_arch (type)) == BFD_ENDIAN_BIG) | |
62 | encoding = "UTF-32BE"; | |
63 | else | |
64 | encoding = "UTF-32LE"; | |
65 | break; | |
66 | ||
67 | default: | |
68 | error (_("unrecognized character type")); | |
69 | } | |
70 | ||
71 | return encoding; | |
72 | } | |
73 | ||
c906108c SS |
74 | /* Print the character C on STREAM as part of the contents of a literal |
75 | string whose delimiter is QUOTER. Note that that format for printing | |
76 | characters and strings is language specific. | |
77 | FIXME: This is a copy of the same function from c-exp.y. It should | |
78 | be replaced with a true F77 version. */ | |
79 | ||
80 | static void | |
6c7a06a3 | 81 | f_emit_char (int c, struct type *type, struct ui_file *stream, int quoter) |
c906108c | 82 | { |
3b2b8fea | 83 | const char *encoding = f_get_encoding (type); |
c5aa993b | 84 | |
3b2b8fea | 85 | generic_emit_char (c, type, stream, quoter, encoding); |
c906108c SS |
86 | } |
87 | ||
3b2b8fea | 88 | /* Implementation of la_printchar. */ |
c906108c SS |
89 | |
90 | static void | |
6c7a06a3 | 91 | f_printchar (int c, struct type *type, struct ui_file *stream) |
c906108c SS |
92 | { |
93 | fputs_filtered ("'", stream); | |
6c7a06a3 | 94 | LA_EMIT_CHAR (c, type, stream, '\''); |
c906108c SS |
95 | fputs_filtered ("'", stream); |
96 | } | |
97 | ||
98 | /* Print the character string STRING, printing at most LENGTH characters. | |
99 | Printing stops early if the number hits print_max; repeat counts | |
100 | are printed as appropriate. Print ellipses at the end if we | |
101 | had to stop before printing LENGTH characters, or if FORCE_ELLIPSES. | |
102 | FIXME: This is a copy of the same function from c-exp.y. It should | |
0963b4bd | 103 | be replaced with a true F77 version. */ |
c906108c SS |
104 | |
105 | static void | |
6c7a06a3 | 106 | f_printstr (struct ui_file *stream, struct type *type, const gdb_byte *string, |
be759fcf | 107 | unsigned int length, const char *encoding, int force_ellipses, |
79a45b7d | 108 | const struct value_print_options *options) |
c906108c | 109 | { |
3b2b8fea | 110 | const char *type_encoding = f_get_encoding (type); |
c5aa993b | 111 | |
3b2b8fea TT |
112 | if (TYPE_LENGTH (type) == 4) |
113 | fputs_filtered ("4_", stream); | |
c5aa993b | 114 | |
3b2b8fea TT |
115 | if (!encoding || !*encoding) |
116 | encoding = type_encoding; | |
c5aa993b | 117 | |
3b2b8fea TT |
118 | generic_printstr (stream, type, string, length, encoding, |
119 | force_ellipses, '\'', 0, options); | |
c906108c | 120 | } |
c906108c | 121 | \f |
c5aa993b | 122 | |
c906108c SS |
123 | /* Table of operators and their precedences for printing expressions. */ |
124 | ||
c5aa993b JM |
125 | static const struct op_print f_op_print_tab[] = |
126 | { | |
127 | {"+", BINOP_ADD, PREC_ADD, 0}, | |
128 | {"+", UNOP_PLUS, PREC_PREFIX, 0}, | |
129 | {"-", BINOP_SUB, PREC_ADD, 0}, | |
130 | {"-", UNOP_NEG, PREC_PREFIX, 0}, | |
131 | {"*", BINOP_MUL, PREC_MUL, 0}, | |
132 | {"/", BINOP_DIV, PREC_MUL, 0}, | |
133 | {"DIV", BINOP_INTDIV, PREC_MUL, 0}, | |
134 | {"MOD", BINOP_REM, PREC_MUL, 0}, | |
135 | {"=", BINOP_ASSIGN, PREC_ASSIGN, 1}, | |
136 | {".OR.", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0}, | |
137 | {".AND.", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0}, | |
138 | {".NOT.", UNOP_LOGICAL_NOT, PREC_PREFIX, 0}, | |
139 | {".EQ.", BINOP_EQUAL, PREC_EQUAL, 0}, | |
140 | {".NE.", BINOP_NOTEQUAL, PREC_EQUAL, 0}, | |
141 | {".LE.", BINOP_LEQ, PREC_ORDER, 0}, | |
142 | {".GE.", BINOP_GEQ, PREC_ORDER, 0}, | |
143 | {".GT.", BINOP_GTR, PREC_ORDER, 0}, | |
144 | {".LT.", BINOP_LESS, PREC_ORDER, 0}, | |
145 | {"**", UNOP_IND, PREC_PREFIX, 0}, | |
146 | {"@", BINOP_REPEAT, PREC_REPEAT, 0}, | |
f486487f | 147 | {NULL, OP_NULL, PREC_REPEAT, 0} |
c906108c SS |
148 | }; |
149 | \f | |
cad351d1 UW |
150 | enum f_primitive_types { |
151 | f_primitive_type_character, | |
152 | f_primitive_type_logical, | |
153 | f_primitive_type_logical_s1, | |
154 | f_primitive_type_logical_s2, | |
ce4b0682 | 155 | f_primitive_type_logical_s8, |
cad351d1 UW |
156 | f_primitive_type_integer, |
157 | f_primitive_type_integer_s2, | |
158 | f_primitive_type_real, | |
159 | f_primitive_type_real_s8, | |
160 | f_primitive_type_real_s16, | |
161 | f_primitive_type_complex_s8, | |
162 | f_primitive_type_complex_s16, | |
163 | f_primitive_type_void, | |
164 | nr_f_primitive_types | |
c906108c SS |
165 | }; |
166 | ||
cad351d1 UW |
167 | static void |
168 | f_language_arch_info (struct gdbarch *gdbarch, | |
169 | struct language_arch_info *lai) | |
170 | { | |
54ef06c7 UW |
171 | const struct builtin_f_type *builtin = builtin_f_type (gdbarch); |
172 | ||
173 | lai->string_char_type = builtin->builtin_character; | |
cad351d1 UW |
174 | lai->primitive_type_vector |
175 | = GDBARCH_OBSTACK_CALLOC (gdbarch, nr_f_primitive_types + 1, | |
176 | struct type *); | |
177 | ||
178 | lai->primitive_type_vector [f_primitive_type_character] | |
54ef06c7 | 179 | = builtin->builtin_character; |
cad351d1 | 180 | lai->primitive_type_vector [f_primitive_type_logical] |
54ef06c7 | 181 | = builtin->builtin_logical; |
cad351d1 | 182 | lai->primitive_type_vector [f_primitive_type_logical_s1] |
54ef06c7 | 183 | = builtin->builtin_logical_s1; |
cad351d1 | 184 | lai->primitive_type_vector [f_primitive_type_logical_s2] |
54ef06c7 | 185 | = builtin->builtin_logical_s2; |
ce4b0682 SDJ |
186 | lai->primitive_type_vector [f_primitive_type_logical_s8] |
187 | = builtin->builtin_logical_s8; | |
cad351d1 | 188 | lai->primitive_type_vector [f_primitive_type_real] |
54ef06c7 | 189 | = builtin->builtin_real; |
cad351d1 | 190 | lai->primitive_type_vector [f_primitive_type_real_s8] |
54ef06c7 | 191 | = builtin->builtin_real_s8; |
cad351d1 | 192 | lai->primitive_type_vector [f_primitive_type_real_s16] |
54ef06c7 | 193 | = builtin->builtin_real_s16; |
cad351d1 | 194 | lai->primitive_type_vector [f_primitive_type_complex_s8] |
54ef06c7 | 195 | = builtin->builtin_complex_s8; |
cad351d1 | 196 | lai->primitive_type_vector [f_primitive_type_complex_s16] |
54ef06c7 | 197 | = builtin->builtin_complex_s16; |
cad351d1 | 198 | lai->primitive_type_vector [f_primitive_type_void] |
54ef06c7 | 199 | = builtin->builtin_void; |
fbb06eb1 UW |
200 | |
201 | lai->bool_type_symbol = "logical"; | |
202 | lai->bool_type_default = builtin->builtin_logical_s2; | |
cad351d1 UW |
203 | } |
204 | ||
f55ee35c JK |
205 | /* Remove the modules separator :: from the default break list. */ |
206 | ||
67cb5b2d | 207 | static const char * |
f55ee35c JK |
208 | f_word_break_characters (void) |
209 | { | |
210 | static char *retval; | |
211 | ||
212 | if (!retval) | |
213 | { | |
214 | char *s; | |
215 | ||
216 | retval = xstrdup (default_word_break_characters ()); | |
217 | s = strchr (retval, ':'); | |
218 | if (s) | |
219 | { | |
220 | char *last_char = &s[strlen (s) - 1]; | |
221 | ||
222 | *s = *last_char; | |
223 | *last_char = 0; | |
224 | } | |
225 | } | |
226 | return retval; | |
227 | } | |
228 | ||
3e43a32a MS |
229 | /* Consider the modules separator :: as a valid symbol name character |
230 | class. */ | |
f55ee35c | 231 | |
eb3ff9a5 PA |
232 | static void |
233 | f_collect_symbol_completion_matches (completion_tracker &tracker, | |
c6756f62 | 234 | complete_symbol_mode mode, |
b5ec771e | 235 | symbol_name_match_type compare_name, |
eb3ff9a5 PA |
236 | const char *text, const char *word, |
237 | enum type_code code) | |
f55ee35c | 238 | { |
c6756f62 | 239 | default_collect_symbol_completion_matches_break_on (tracker, mode, |
b5ec771e | 240 | compare_name, |
eb3ff9a5 | 241 | text, word, ":", code); |
f55ee35c JK |
242 | } |
243 | ||
9dad4a58 AB |
244 | /* Special expression evaluation cases for Fortran. */ |
245 | struct value * | |
246 | evaluate_subexp_f (struct type *expect_type, struct expression *exp, | |
247 | int *pos, enum noside noside) | |
248 | { | |
b6d03bb2 | 249 | struct value *arg1 = NULL, *arg2 = NULL; |
4d00f5d8 AB |
250 | enum exp_opcode op; |
251 | int pc; | |
252 | struct type *type; | |
253 | ||
254 | pc = *pos; | |
255 | *pos += 1; | |
256 | op = exp->elts[pc].opcode; | |
257 | ||
258 | switch (op) | |
259 | { | |
260 | default: | |
261 | *pos -= 1; | |
262 | return evaluate_subexp_standard (expect_type, exp, pos, noside); | |
263 | ||
0841c79a AB |
264 | case UNOP_ABS: |
265 | arg1 = evaluate_subexp (NULL_TYPE, exp, pos, noside); | |
266 | if (noside == EVAL_SKIP) | |
267 | return eval_skip_value (exp); | |
268 | type = value_type (arg1); | |
269 | switch (TYPE_CODE (type)) | |
270 | { | |
271 | case TYPE_CODE_FLT: | |
272 | { | |
273 | double d | |
274 | = fabs (target_float_to_host_double (value_contents (arg1), | |
275 | value_type (arg1))); | |
276 | return value_from_host_double (type, d); | |
277 | } | |
278 | case TYPE_CODE_INT: | |
279 | { | |
280 | LONGEST l = value_as_long (arg1); | |
281 | l = llabs (l); | |
282 | return value_from_longest (type, l); | |
283 | } | |
284 | } | |
285 | error (_("ABS of type %s not supported"), TYPE_SAFE_NAME (type)); | |
286 | ||
b6d03bb2 AB |
287 | case BINOP_MOD: |
288 | arg1 = evaluate_subexp (NULL_TYPE, exp, pos, noside); | |
289 | arg2 = evaluate_subexp (value_type (arg1), exp, pos, noside); | |
290 | if (noside == EVAL_SKIP) | |
291 | return eval_skip_value (exp); | |
292 | type = value_type (arg1); | |
293 | if (TYPE_CODE (type) != TYPE_CODE (value_type (arg2))) | |
294 | error (_("non-matching types for parameters to MOD ()")); | |
295 | switch (TYPE_CODE (type)) | |
296 | { | |
297 | case TYPE_CODE_FLT: | |
298 | { | |
299 | double d1 | |
300 | = target_float_to_host_double (value_contents (arg1), | |
301 | value_type (arg1)); | |
302 | double d2 | |
303 | = target_float_to_host_double (value_contents (arg2), | |
304 | value_type (arg2)); | |
305 | double d3 = fmod (d1, d2); | |
306 | return value_from_host_double (type, d3); | |
307 | } | |
308 | case TYPE_CODE_INT: | |
309 | { | |
310 | LONGEST v1 = value_as_long (arg1); | |
311 | LONGEST v2 = value_as_long (arg2); | |
312 | if (v2 == 0) | |
313 | error (_("calling MOD (N, 0) is undefined")); | |
314 | LONGEST v3 = v1 - (v1 / v2) * v2; | |
315 | return value_from_longest (value_type (arg1), v3); | |
316 | } | |
317 | } | |
318 | error (_("MOD of type %s not supported"), TYPE_SAFE_NAME (type)); | |
319 | ||
320 | case UNOP_FORTRAN_CEILING: | |
321 | { | |
322 | arg1 = evaluate_subexp (NULL_TYPE, exp, pos, noside); | |
323 | if (noside == EVAL_SKIP) | |
324 | return eval_skip_value (exp); | |
325 | type = value_type (arg1); | |
326 | if (TYPE_CODE (type) != TYPE_CODE_FLT) | |
327 | error (_("argument to CEILING must be of type float")); | |
328 | double val | |
329 | = target_float_to_host_double (value_contents (arg1), | |
330 | value_type (arg1)); | |
331 | val = ceil (val); | |
332 | return value_from_host_double (type, val); | |
333 | } | |
334 | ||
335 | case UNOP_FORTRAN_FLOOR: | |
336 | { | |
337 | arg1 = evaluate_subexp (NULL_TYPE, exp, pos, noside); | |
338 | if (noside == EVAL_SKIP) | |
339 | return eval_skip_value (exp); | |
340 | type = value_type (arg1); | |
341 | if (TYPE_CODE (type) != TYPE_CODE_FLT) | |
342 | error (_("argument to FLOOR must be of type float")); | |
343 | double val | |
344 | = target_float_to_host_double (value_contents (arg1), | |
345 | value_type (arg1)); | |
346 | val = floor (val); | |
347 | return value_from_host_double (type, val); | |
348 | } | |
349 | ||
350 | case BINOP_FORTRAN_MODULO: | |
351 | { | |
352 | arg1 = evaluate_subexp (NULL_TYPE, exp, pos, noside); | |
353 | arg2 = evaluate_subexp (value_type (arg1), exp, pos, noside); | |
354 | if (noside == EVAL_SKIP) | |
355 | return eval_skip_value (exp); | |
356 | type = value_type (arg1); | |
357 | if (TYPE_CODE (type) != TYPE_CODE (value_type (arg2))) | |
358 | error (_("non-matching types for parameters to MODULO ()")); | |
359 | /* MODULO(A, P) = A - FLOOR (A / P) * P */ | |
360 | switch (TYPE_CODE (type)) | |
361 | { | |
362 | case TYPE_CODE_INT: | |
363 | { | |
364 | LONGEST a = value_as_long (arg1); | |
365 | LONGEST p = value_as_long (arg2); | |
366 | LONGEST result = a - (a / p) * p; | |
367 | if (result != 0 && (a < 0) != (p < 0)) | |
368 | result += p; | |
369 | return value_from_longest (value_type (arg1), result); | |
370 | } | |
371 | case TYPE_CODE_FLT: | |
372 | { | |
373 | double a | |
374 | = target_float_to_host_double (value_contents (arg1), | |
375 | value_type (arg1)); | |
376 | double p | |
377 | = target_float_to_host_double (value_contents (arg2), | |
378 | value_type (arg2)); | |
379 | double result = fmod (a, p); | |
380 | if (result != 0 && (a < 0.0) != (p < 0.0)) | |
381 | result += p; | |
382 | return value_from_host_double (type, result); | |
383 | } | |
384 | } | |
385 | error (_("MODULO of type %s not supported"), TYPE_SAFE_NAME (type)); | |
386 | } | |
387 | ||
388 | case BINOP_FORTRAN_CMPLX: | |
389 | arg1 = evaluate_subexp (NULL_TYPE, exp, pos, noside); | |
390 | arg2 = evaluate_subexp (value_type (arg1), exp, pos, noside); | |
391 | if (noside == EVAL_SKIP) | |
392 | return eval_skip_value (exp); | |
393 | type = builtin_f_type(exp->gdbarch)->builtin_complex_s16; | |
394 | return value_literal_complex (arg1, arg2, type); | |
395 | ||
83228e93 | 396 | case UNOP_FORTRAN_KIND: |
4d00f5d8 AB |
397 | arg1 = evaluate_subexp (NULL, exp, pos, EVAL_AVOID_SIDE_EFFECTS); |
398 | type = value_type (arg1); | |
399 | ||
400 | switch (TYPE_CODE (type)) | |
401 | { | |
402 | case TYPE_CODE_STRUCT: | |
403 | case TYPE_CODE_UNION: | |
404 | case TYPE_CODE_MODULE: | |
405 | case TYPE_CODE_FUNC: | |
406 | error (_("argument to kind must be an intrinsic type")); | |
407 | } | |
408 | ||
409 | if (!TYPE_TARGET_TYPE (type)) | |
410 | return value_from_longest (builtin_type (exp->gdbarch)->builtin_int, | |
411 | TYPE_LENGTH (type)); | |
412 | return value_from_longest (builtin_type (exp->gdbarch)->builtin_int, | |
413 | TYPE_LENGTH (TYPE_TARGET_TYPE(type))); | |
414 | } | |
415 | ||
416 | /* Should be unreachable. */ | |
417 | return nullptr; | |
9dad4a58 AB |
418 | } |
419 | ||
4be290b2 AB |
420 | /* Return true if TYPE is a string. */ |
421 | ||
422 | static bool | |
423 | f_is_string_type_p (struct type *type) | |
424 | { | |
425 | type = check_typedef (type); | |
426 | return (TYPE_CODE (type) == TYPE_CODE_STRING | |
427 | || (TYPE_CODE (type) == TYPE_CODE_ARRAY | |
428 | && TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_CHAR)); | |
429 | } | |
430 | ||
83228e93 AB |
431 | /* Special expression lengths for Fortran. */ |
432 | ||
433 | static void | |
434 | operator_length_f (const struct expression *exp, int pc, int *oplenp, | |
435 | int *argsp) | |
436 | { | |
437 | int oplen = 1; | |
438 | int args = 0; | |
439 | ||
440 | switch (exp->elts[pc - 1].opcode) | |
441 | { | |
442 | default: | |
443 | operator_length_standard (exp, pc, oplenp, argsp); | |
444 | return; | |
445 | ||
446 | case UNOP_FORTRAN_KIND: | |
b6d03bb2 AB |
447 | case UNOP_FORTRAN_FLOOR: |
448 | case UNOP_FORTRAN_CEILING: | |
83228e93 AB |
449 | oplen = 1; |
450 | args = 1; | |
451 | break; | |
b6d03bb2 AB |
452 | |
453 | case BINOP_FORTRAN_CMPLX: | |
454 | case BINOP_FORTRAN_MODULO: | |
455 | oplen = 1; | |
456 | args = 2; | |
457 | break; | |
83228e93 AB |
458 | } |
459 | ||
460 | *oplenp = oplen; | |
461 | *argsp = args; | |
462 | } | |
463 | ||
b6d03bb2 AB |
464 | /* Helper for PRINT_SUBEXP_F. Arguments are as for PRINT_SUBEXP_F, except |
465 | the extra argument NAME which is the text that should be printed as the | |
466 | name of this operation. */ | |
467 | ||
468 | static void | |
469 | print_unop_subexp_f (struct expression *exp, int *pos, | |
470 | struct ui_file *stream, enum precedence prec, | |
471 | const char *name) | |
472 | { | |
473 | (*pos)++; | |
474 | fprintf_filtered (stream, "%s(", name); | |
475 | print_subexp (exp, pos, stream, PREC_SUFFIX); | |
476 | fputs_filtered (")", stream); | |
477 | } | |
478 | ||
479 | /* Helper for PRINT_SUBEXP_F. Arguments are as for PRINT_SUBEXP_F, except | |
480 | the extra argument NAME which is the text that should be printed as the | |
481 | name of this operation. */ | |
482 | ||
483 | static void | |
484 | print_binop_subexp_f (struct expression *exp, int *pos, | |
485 | struct ui_file *stream, enum precedence prec, | |
486 | const char *name) | |
487 | { | |
488 | (*pos)++; | |
489 | fprintf_filtered (stream, "%s(", name); | |
490 | print_subexp (exp, pos, stream, PREC_SUFFIX); | |
491 | fputs_filtered (",", stream); | |
492 | print_subexp (exp, pos, stream, PREC_SUFFIX); | |
493 | fputs_filtered (")", stream); | |
494 | } | |
495 | ||
83228e93 AB |
496 | /* Special expression printing for Fortran. */ |
497 | ||
498 | static void | |
499 | print_subexp_f (struct expression *exp, int *pos, | |
500 | struct ui_file *stream, enum precedence prec) | |
501 | { | |
502 | int pc = *pos; | |
503 | enum exp_opcode op = exp->elts[pc].opcode; | |
504 | ||
505 | switch (op) | |
506 | { | |
507 | default: | |
508 | print_subexp_standard (exp, pos, stream, prec); | |
509 | return; | |
510 | ||
511 | case UNOP_FORTRAN_KIND: | |
b6d03bb2 AB |
512 | print_unop_subexp_f (exp, pos, stream, prec, "KIND"); |
513 | return; | |
514 | ||
515 | case UNOP_FORTRAN_FLOOR: | |
516 | print_unop_subexp_f (exp, pos, stream, prec, "FLOOR"); | |
517 | return; | |
518 | ||
519 | case UNOP_FORTRAN_CEILING: | |
520 | print_unop_subexp_f (exp, pos, stream, prec, "CEILING"); | |
521 | return; | |
522 | ||
523 | case BINOP_FORTRAN_CMPLX: | |
524 | print_binop_subexp_f (exp, pos, stream, prec, "CMPLX"); | |
525 | return; | |
526 | ||
527 | case BINOP_FORTRAN_MODULO: | |
528 | print_binop_subexp_f (exp, pos, stream, prec, "MODULO"); | |
83228e93 AB |
529 | return; |
530 | } | |
531 | } | |
532 | ||
533 | /* Special expression names for Fortran. */ | |
534 | ||
535 | static const char * | |
536 | op_name_f (enum exp_opcode opcode) | |
537 | { | |
538 | switch (opcode) | |
539 | { | |
540 | default: | |
541 | return op_name_standard (opcode); | |
542 | ||
543 | #define OP(name) \ | |
544 | case name: \ | |
545 | return #name ; | |
546 | #include "fortran-operator.def" | |
547 | #undef OP | |
548 | } | |
549 | } | |
550 | ||
551 | /* Special expression dumping for Fortran. */ | |
552 | ||
553 | static int | |
554 | dump_subexp_body_f (struct expression *exp, | |
555 | struct ui_file *stream, int elt) | |
556 | { | |
557 | int opcode = exp->elts[elt].opcode; | |
558 | int oplen, nargs, i; | |
559 | ||
560 | switch (opcode) | |
561 | { | |
562 | default: | |
563 | return dump_subexp_body_standard (exp, stream, elt); | |
564 | ||
565 | case UNOP_FORTRAN_KIND: | |
b6d03bb2 AB |
566 | case UNOP_FORTRAN_FLOOR: |
567 | case UNOP_FORTRAN_CEILING: | |
568 | case BINOP_FORTRAN_CMPLX: | |
569 | case BINOP_FORTRAN_MODULO: | |
83228e93 AB |
570 | operator_length_f (exp, (elt + 1), &oplen, &nargs); |
571 | break; | |
572 | } | |
573 | ||
574 | elt += oplen; | |
575 | for (i = 0; i < nargs; i += 1) | |
576 | elt = dump_subexp (exp, stream, elt); | |
577 | ||
578 | return elt; | |
579 | } | |
580 | ||
581 | /* Special expression checking for Fortran. */ | |
582 | ||
583 | static int | |
584 | operator_check_f (struct expression *exp, int pos, | |
585 | int (*objfile_func) (struct objfile *objfile, | |
586 | void *data), | |
587 | void *data) | |
588 | { | |
589 | const union exp_element *const elts = exp->elts; | |
590 | ||
591 | switch (elts[pos].opcode) | |
592 | { | |
593 | case UNOP_FORTRAN_KIND: | |
b6d03bb2 AB |
594 | case UNOP_FORTRAN_FLOOR: |
595 | case UNOP_FORTRAN_CEILING: | |
596 | case BINOP_FORTRAN_CMPLX: | |
597 | case BINOP_FORTRAN_MODULO: | |
83228e93 AB |
598 | /* Any references to objfiles are held in the arguments to this |
599 | expression, not within the expression itself, so no additional | |
600 | checking is required here, the outer expression iteration code | |
601 | will take care of checking each argument. */ | |
602 | break; | |
603 | ||
604 | default: | |
605 | return operator_check_standard (exp, pos, objfile_func, data); | |
606 | } | |
607 | ||
608 | return 0; | |
609 | } | |
610 | ||
56618e20 TT |
611 | static const char *f_extensions[] = |
612 | { | |
613 | ".f", ".F", ".for", ".FOR", ".ftn", ".FTN", ".fpp", ".FPP", | |
614 | ".f90", ".F90", ".f95", ".F95", ".f03", ".F03", ".f08", ".F08", | |
615 | NULL | |
616 | }; | |
617 | ||
9dad4a58 AB |
618 | /* Expression processing for Fortran. */ |
619 | static const struct exp_descriptor exp_descriptor_f = | |
620 | { | |
83228e93 AB |
621 | print_subexp_f, |
622 | operator_length_f, | |
623 | operator_check_f, | |
624 | op_name_f, | |
625 | dump_subexp_body_f, | |
9dad4a58 AB |
626 | evaluate_subexp_f |
627 | }; | |
628 | ||
47e77640 | 629 | extern const struct language_defn f_language_defn = |
c5aa993b | 630 | { |
c906108c | 631 | "fortran", |
6abde28f | 632 | "Fortran", |
c906108c | 633 | language_fortran, |
c906108c | 634 | range_check_on, |
63872f9d | 635 | case_sensitive_off, |
7ca2d3a3 | 636 | array_column_major, |
9a044a89 | 637 | macro_expansion_no, |
56618e20 | 638 | f_extensions, |
9dad4a58 | 639 | &exp_descriptor_f, |
c906108c | 640 | f_parse, /* parser */ |
e85c3284 | 641 | null_post_parser, |
c906108c SS |
642 | f_printchar, /* Print character constant */ |
643 | f_printstr, /* function to print string constant */ | |
644 | f_emit_char, /* Function to print a single character */ | |
c5aa993b | 645 | f_print_type, /* Print a type using appropriate syntax */ |
5c6ce71d | 646 | default_print_typedef, /* Print a typedef using appropriate syntax */ |
c906108c | 647 | f_val_print, /* Print a value using appropriate syntax */ |
c5aa993b | 648 | c_value_print, /* FIXME */ |
a5ee536b | 649 | default_read_var_value, /* la_read_var_value */ |
f636b87d | 650 | NULL, /* Language specific skip_trampoline */ |
2b2d9e11 | 651 | NULL, /* name_of_this */ |
59cc4834 | 652 | false, /* la_store_sym_names_in_linkage_form_p */ |
f55ee35c | 653 | cp_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */ |
b368761e | 654 | basic_lookup_transparent_type,/* lookup_transparent_type */ |
8b302db8 TT |
655 | |
656 | /* We could support demangling here to provide module namespaces | |
657 | also for inferiors with only minimal symbol table (ELF symbols). | |
658 | Just the mangling standard is not standardized across compilers | |
659 | and there is no DW_AT_producer available for inferiors with only | |
660 | the ELF symbols to check the mangling kind. */ | |
9a3d7dfd | 661 | NULL, /* Language specific symbol demangler */ |
8b302db8 | 662 | NULL, |
3e43a32a MS |
663 | NULL, /* Language specific |
664 | class_name_from_physname */ | |
c906108c SS |
665 | f_op_print_tab, /* expression operators for printing */ |
666 | 0, /* arrays are first-class (not c-style) */ | |
667 | 1, /* String lower bound */ | |
f55ee35c | 668 | f_word_break_characters, |
eb3ff9a5 | 669 | f_collect_symbol_completion_matches, |
cad351d1 | 670 | f_language_arch_info, |
e79af960 | 671 | default_print_array_index, |
41f1b697 | 672 | default_pass_by_reference, |
ae6a3a4c | 673 | default_get_string, |
43cc5389 | 674 | c_watch_location_expression, |
b5ec771e | 675 | NULL, /* la_get_symbol_name_matcher */ |
f8eba3c6 | 676 | iterate_over_symbols, |
5ffa0793 | 677 | default_search_name_hash, |
a53b64ea | 678 | &default_varobj_ops, |
bb2ec1b3 | 679 | NULL, |
721b08c6 | 680 | NULL, |
4be290b2 | 681 | f_is_string_type_p, |
721b08c6 | 682 | "(...)" /* la_struct_too_deep_ellipsis */ |
c5aa993b | 683 | }; |
c906108c | 684 | |
54ef06c7 UW |
685 | static void * |
686 | build_fortran_types (struct gdbarch *gdbarch) | |
c906108c | 687 | { |
54ef06c7 UW |
688 | struct builtin_f_type *builtin_f_type |
689 | = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct builtin_f_type); | |
690 | ||
e9bb382b | 691 | builtin_f_type->builtin_void |
bbe75b9d | 692 | = arch_type (gdbarch, TYPE_CODE_VOID, TARGET_CHAR_BIT, "void"); |
e9bb382b UW |
693 | |
694 | builtin_f_type->builtin_character | |
4a270568 | 695 | = arch_type (gdbarch, TYPE_CODE_CHAR, TARGET_CHAR_BIT, "character"); |
e9bb382b UW |
696 | |
697 | builtin_f_type->builtin_logical_s1 | |
698 | = arch_boolean_type (gdbarch, TARGET_CHAR_BIT, 1, "logical*1"); | |
699 | ||
700 | builtin_f_type->builtin_integer_s2 | |
701 | = arch_integer_type (gdbarch, gdbarch_short_bit (gdbarch), 0, | |
702 | "integer*2"); | |
703 | ||
067630bd AB |
704 | builtin_f_type->builtin_integer_s8 |
705 | = arch_integer_type (gdbarch, gdbarch_long_long_bit (gdbarch), 0, | |
706 | "integer*8"); | |
707 | ||
e9bb382b UW |
708 | builtin_f_type->builtin_logical_s2 |
709 | = arch_boolean_type (gdbarch, gdbarch_short_bit (gdbarch), 1, | |
710 | "logical*2"); | |
711 | ||
ce4b0682 SDJ |
712 | builtin_f_type->builtin_logical_s8 |
713 | = arch_boolean_type (gdbarch, gdbarch_long_long_bit (gdbarch), 1, | |
714 | "logical*8"); | |
715 | ||
e9bb382b UW |
716 | builtin_f_type->builtin_integer |
717 | = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), 0, | |
718 | "integer"); | |
719 | ||
720 | builtin_f_type->builtin_logical | |
721 | = arch_boolean_type (gdbarch, gdbarch_int_bit (gdbarch), 1, | |
722 | "logical*4"); | |
723 | ||
724 | builtin_f_type->builtin_real | |
725 | = arch_float_type (gdbarch, gdbarch_float_bit (gdbarch), | |
49f190bc | 726 | "real", gdbarch_float_format (gdbarch)); |
e9bb382b UW |
727 | builtin_f_type->builtin_real_s8 |
728 | = arch_float_type (gdbarch, gdbarch_double_bit (gdbarch), | |
49f190bc | 729 | "real*8", gdbarch_double_format (gdbarch)); |
34d11c68 | 730 | auto fmt = gdbarch_floatformat_for_type (gdbarch, "real(kind=16)", 128); |
dc42e902 AB |
731 | if (fmt != nullptr) |
732 | builtin_f_type->builtin_real_s16 | |
733 | = arch_float_type (gdbarch, 128, "real*16", fmt); | |
734 | else if (gdbarch_long_double_bit (gdbarch) == 128) | |
735 | builtin_f_type->builtin_real_s16 | |
736 | = arch_float_type (gdbarch, gdbarch_long_double_bit (gdbarch), | |
737 | "real*16", gdbarch_long_double_format (gdbarch)); | |
738 | else | |
739 | builtin_f_type->builtin_real_s16 | |
740 | = arch_type (gdbarch, TYPE_CODE_ERROR, 128, "real*16"); | |
e9bb382b UW |
741 | |
742 | builtin_f_type->builtin_complex_s8 | |
743 | = arch_complex_type (gdbarch, "complex*8", | |
744 | builtin_f_type->builtin_real); | |
745 | builtin_f_type->builtin_complex_s16 | |
746 | = arch_complex_type (gdbarch, "complex*16", | |
747 | builtin_f_type->builtin_real_s8); | |
748 | builtin_f_type->builtin_complex_s32 | |
749 | = arch_complex_type (gdbarch, "complex*32", | |
750 | builtin_f_type->builtin_real_s16); | |
54ef06c7 UW |
751 | |
752 | return builtin_f_type; | |
753 | } | |
754 | ||
755 | static struct gdbarch_data *f_type_data; | |
756 | ||
757 | const struct builtin_f_type * | |
758 | builtin_f_type (struct gdbarch *gdbarch) | |
759 | { | |
9a3c8263 | 760 | return (const struct builtin_f_type *) gdbarch_data (gdbarch, f_type_data); |
4e845cd3 MS |
761 | } |
762 | ||
763 | void | |
764 | _initialize_f_language (void) | |
765 | { | |
54ef06c7 | 766 | f_type_data = gdbarch_data_register_post_init (build_fortran_types); |
c906108c | 767 | } |
aa3cfbda RB |
768 | |
769 | /* See f-lang.h. */ | |
770 | ||
771 | struct value * | |
772 | fortran_argument_convert (struct value *value, bool is_artificial) | |
773 | { | |
774 | if (!is_artificial) | |
775 | { | |
776 | /* If the value is not in the inferior e.g. registers values, | |
777 | convenience variables and user input. */ | |
778 | if (VALUE_LVAL (value) != lval_memory) | |
779 | { | |
780 | struct type *type = value_type (value); | |
781 | const int length = TYPE_LENGTH (type); | |
782 | const CORE_ADDR addr | |
783 | = value_as_long (value_allocate_space_in_inferior (length)); | |
784 | write_memory (addr, value_contents (value), length); | |
785 | struct value *val | |
786 | = value_from_contents_and_address (type, value_contents (value), | |
787 | addr); | |
788 | return value_addr (val); | |
789 | } | |
790 | else | |
791 | return value_addr (value); /* Program variables, e.g. arrays. */ | |
792 | } | |
793 | return value; | |
794 | } | |
795 | ||
796 | /* See f-lang.h. */ | |
797 | ||
798 | struct type * | |
799 | fortran_preserve_arg_pointer (struct value *arg, struct type *type) | |
800 | { | |
801 | if (TYPE_CODE (value_type (arg)) == TYPE_CODE_PTR) | |
802 | return value_type (arg); | |
803 | return type; | |
804 | } |