Commit | Line | Data |
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a91a6192 | 1 | /* Support for printing Fortran types for GDB, the GNU debugger. |
22d7f91e | 2 | Copyright 1986, 1988, 1989, 1991, 1993, 1994 Free Software Foundation, Inc. |
a91a6192 SS |
3 | Contributed by Motorola. Adapted from the C version by Farooq Butt |
4 | (fmbutt@engage.sps.mot.com). | |
5 | ||
6 | This file is part of GDB. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program; if not, write to the Free Software | |
6c9638b4 | 20 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
a91a6192 SS |
21 | |
22 | #include "defs.h" | |
23 | #include "obstack.h" | |
24 | #include "bfd.h" | |
25 | #include "symtab.h" | |
26 | #include "gdbtypes.h" | |
27 | #include "expression.h" | |
28 | #include "value.h" | |
29 | #include "gdbcore.h" | |
30 | #include "target.h" | |
31 | #include "command.h" | |
32 | #include "gdbcmd.h" | |
33 | #include "language.h" | |
34 | #include "demangle.h" | |
35 | #include "f-lang.h" | |
36 | #include "typeprint.h" | |
37 | #include "frame.h" /* ??? */ | |
38 | ||
2b576293 | 39 | #include "gdb_string.h" |
a91a6192 SS |
40 | #include <errno.h> |
41 | ||
6b14af2b | 42 | #if 0 /* Currently unused */ |
a91a6192 | 43 | static void f_type_print_args PARAMS ((struct type *, FILE *)); |
6b14af2b | 44 | #endif |
a91a6192 | 45 | |
b607efe7 FF |
46 | static void print_equivalent_f77_float_type PARAMS ((struct type *, FILE *)); |
47 | ||
a91a6192 SS |
48 | static void f_type_print_varspec_suffix PARAMS ((struct type *, FILE *, |
49 | int, int, int)); | |
50 | ||
51 | void f_type_print_varspec_prefix PARAMS ((struct type *, FILE *, int, int)); | |
52 | ||
53 | void f_type_print_base PARAMS ((struct type *, FILE *, int, int)); | |
54 | ||
55 | \f | |
56 | /* LEVEL is the depth to indent lines by. */ | |
57 | ||
58 | void | |
59 | f_print_type (type, varstring, stream, show, level) | |
60 | struct type *type; | |
61 | char *varstring; | |
62 | FILE *stream; | |
63 | int show; | |
64 | int level; | |
65 | { | |
66 | register enum type_code code; | |
67 | int demangled_args; | |
68 | ||
69 | f_type_print_base (type, stream, show, level); | |
70 | code = TYPE_CODE (type); | |
71 | if ((varstring != NULL && *varstring != '\0') | |
72 | || | |
73 | /* Need a space if going to print stars or brackets; | |
74 | but not if we will print just a type name. */ | |
75 | ((show > 0 || TYPE_NAME (type) == 0) | |
76 | && | |
77 | (code == TYPE_CODE_PTR || code == TYPE_CODE_FUNC | |
78 | || code == TYPE_CODE_METHOD | |
79 | || code == TYPE_CODE_ARRAY | |
80 | || code == TYPE_CODE_MEMBER | |
81 | || code == TYPE_CODE_REF))) | |
82 | fputs_filtered (" ", stream); | |
83 | f_type_print_varspec_prefix (type, stream, show, 0); | |
84 | ||
85 | fputs_filtered (varstring, stream); | |
86 | ||
87 | /* For demangled function names, we have the arglist as part of the name, | |
88 | so don't print an additional pair of ()'s */ | |
89 | ||
90 | demangled_args = varstring[strlen(varstring) - 1] == ')'; | |
91 | f_type_print_varspec_suffix (type, stream, show, 0, demangled_args); | |
92 | } | |
93 | ||
94 | /* Print any asterisks or open-parentheses needed before the | |
95 | variable name (to describe its type). | |
96 | ||
97 | On outermost call, pass 0 for PASSED_A_PTR. | |
98 | On outermost call, SHOW > 0 means should ignore | |
99 | any typename for TYPE and show its details. | |
100 | SHOW is always zero on recursive calls. */ | |
101 | ||
102 | void | |
103 | f_type_print_varspec_prefix (type, stream, show, passed_a_ptr) | |
104 | struct type *type; | |
105 | FILE *stream; | |
106 | int show; | |
107 | int passed_a_ptr; | |
108 | { | |
a91a6192 SS |
109 | if (type == 0) |
110 | return; | |
111 | ||
112 | if (TYPE_NAME (type) && show <= 0) | |
113 | return; | |
114 | ||
115 | QUIT; | |
116 | ||
117 | switch (TYPE_CODE (type)) | |
118 | { | |
119 | case TYPE_CODE_PTR: | |
120 | f_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, 0, 1); | |
121 | break; | |
122 | ||
123 | case TYPE_CODE_FUNC: | |
124 | f_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, 0, 0); | |
125 | if (passed_a_ptr) | |
126 | fprintf_filtered (stream, "("); | |
127 | break; | |
128 | ||
129 | case TYPE_CODE_ARRAY: | |
130 | f_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, 0, 0); | |
131 | break; | |
132 | ||
133 | case TYPE_CODE_UNDEF: | |
134 | case TYPE_CODE_STRUCT: | |
135 | case TYPE_CODE_UNION: | |
136 | case TYPE_CODE_ENUM: | |
137 | case TYPE_CODE_INT: | |
138 | case TYPE_CODE_FLT: | |
139 | case TYPE_CODE_VOID: | |
140 | case TYPE_CODE_ERROR: | |
141 | case TYPE_CODE_CHAR: | |
142 | case TYPE_CODE_BOOL: | |
143 | case TYPE_CODE_SET: | |
144 | case TYPE_CODE_RANGE: | |
145 | case TYPE_CODE_STRING: | |
22d7f91e SS |
146 | case TYPE_CODE_BITSTRING: |
147 | case TYPE_CODE_METHOD: | |
148 | case TYPE_CODE_MEMBER: | |
149 | case TYPE_CODE_REF: | |
150 | case TYPE_CODE_COMPLEX: | |
b52cac6b | 151 | case TYPE_CODE_TYPEDEF: |
a91a6192 SS |
152 | /* These types need no prefix. They are listed here so that |
153 | gcc -Wall will reveal any types that haven't been handled. */ | |
154 | break; | |
155 | } | |
156 | } | |
157 | ||
6b14af2b FF |
158 | #if 0 /* Currently unused */ |
159 | ||
a91a6192 SS |
160 | static void |
161 | f_type_print_args (type, stream) | |
162 | struct type *type; | |
163 | FILE *stream; | |
164 | { | |
165 | int i; | |
166 | struct type **args; | |
167 | ||
168 | fprintf_filtered (stream, "("); | |
169 | args = TYPE_ARG_TYPES (type); | |
170 | if (args != NULL) | |
171 | { | |
172 | if (args[1] == NULL) | |
173 | { | |
174 | fprintf_filtered (stream, "..."); | |
175 | } | |
176 | else | |
177 | { | |
178 | for (i = 1; args[i] != NULL && args[i]->code != TYPE_CODE_VOID; i++) | |
179 | { | |
180 | f_print_type (args[i], "", stream, -1, 0); | |
181 | if (args[i+1] == NULL) | |
182 | fprintf_filtered (stream, "..."); | |
183 | else if (args[i+1]->code != TYPE_CODE_VOID) | |
184 | { | |
185 | fprintf_filtered (stream, ","); | |
186 | wrap_here (" "); | |
187 | } | |
188 | } | |
189 | } | |
190 | } | |
191 | fprintf_filtered (stream, ")"); | |
192 | } | |
193 | ||
6b14af2b FF |
194 | #endif /* 0 */ |
195 | ||
a91a6192 SS |
196 | /* Print any array sizes, function arguments or close parentheses |
197 | needed after the variable name (to describe its type). | |
198 | Args work like c_type_print_varspec_prefix. */ | |
199 | ||
200 | static void | |
201 | f_type_print_varspec_suffix (type, stream, show, passed_a_ptr, demangled_args) | |
202 | struct type *type; | |
203 | FILE *stream; | |
204 | int show; | |
205 | int passed_a_ptr; | |
206 | int demangled_args; | |
207 | { | |
22d7f91e | 208 | int upper_bound, lower_bound; |
a91a6192 SS |
209 | int lower_bound_was_default = 0; |
210 | static int arrayprint_recurse_level = 0; | |
211 | int retcode; | |
212 | ||
213 | if (type == 0) | |
214 | return; | |
215 | ||
216 | if (TYPE_NAME (type) && show <= 0) | |
217 | return; | |
218 | ||
219 | QUIT; | |
220 | ||
221 | switch (TYPE_CODE (type)) | |
222 | { | |
223 | case TYPE_CODE_ARRAY: | |
224 | arrayprint_recurse_level++; | |
225 | ||
226 | if (arrayprint_recurse_level == 1) | |
227 | fprintf_filtered(stream,"("); | |
8a329002 PB |
228 | |
229 | if (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_ARRAY) | |
230 | f_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, 0, 0, 0); | |
a91a6192 SS |
231 | |
232 | retcode = f77_get_dynamic_lowerbound (type,&lower_bound); | |
233 | ||
234 | lower_bound_was_default = 0; | |
235 | ||
236 | if (retcode == BOUND_FETCH_ERROR) | |
237 | fprintf_filtered (stream,"???"); | |
238 | else | |
239 | if (lower_bound == 1) /* The default */ | |
240 | lower_bound_was_default = 1; | |
241 | else | |
242 | fprintf_filtered (stream,"%d",lower_bound); | |
243 | ||
244 | if (lower_bound_was_default) | |
245 | lower_bound_was_default = 0; | |
246 | else | |
247 | fprintf_filtered(stream,":"); | |
248 | ||
249 | /* Make sure that, if we have an assumed size array, we | |
250 | print out a warning and print the upperbound as '*' */ | |
251 | ||
252 | if (TYPE_ARRAY_UPPER_BOUND_TYPE(type) == BOUND_CANNOT_BE_DETERMINED) | |
253 | fprintf_filtered (stream, "*"); | |
254 | else | |
255 | { | |
256 | retcode = f77_get_dynamic_upperbound(type,&upper_bound); | |
257 | ||
258 | if (retcode == BOUND_FETCH_ERROR) | |
259 | fprintf_filtered(stream,"???"); | |
260 | else | |
261 | fprintf_filtered(stream,"%d",upper_bound); | |
262 | } | |
263 | ||
8a329002 PB |
264 | if (TYPE_CODE (TYPE_TARGET_TYPE (type)) != TYPE_CODE_ARRAY) |
265 | f_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, 0, 0, 0); | |
a91a6192 SS |
266 | if (arrayprint_recurse_level == 1) |
267 | fprintf_filtered (stream, ")"); | |
8a329002 PB |
268 | else |
269 | fprintf_filtered(stream,","); | |
a91a6192 SS |
270 | arrayprint_recurse_level--; |
271 | break; | |
272 | ||
273 | case TYPE_CODE_PTR: | |
274 | case TYPE_CODE_REF: | |
275 | f_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, 0, 1, 0); | |
276 | fprintf_filtered(stream,")"); | |
277 | break; | |
278 | ||
279 | case TYPE_CODE_FUNC: | |
280 | f_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, 0, | |
281 | passed_a_ptr, 0); | |
282 | if (passed_a_ptr) | |
283 | fprintf_filtered (stream, ")"); | |
284 | ||
285 | fprintf_filtered (stream, "()"); | |
286 | break; | |
287 | ||
288 | case TYPE_CODE_UNDEF: | |
289 | case TYPE_CODE_STRUCT: | |
290 | case TYPE_CODE_UNION: | |
291 | case TYPE_CODE_ENUM: | |
292 | case TYPE_CODE_INT: | |
293 | case TYPE_CODE_FLT: | |
294 | case TYPE_CODE_VOID: | |
295 | case TYPE_CODE_ERROR: | |
296 | case TYPE_CODE_CHAR: | |
297 | case TYPE_CODE_BOOL: | |
298 | case TYPE_CODE_SET: | |
299 | case TYPE_CODE_RANGE: | |
a91a6192 | 300 | case TYPE_CODE_STRING: |
22d7f91e SS |
301 | case TYPE_CODE_BITSTRING: |
302 | case TYPE_CODE_METHOD: | |
303 | case TYPE_CODE_MEMBER: | |
304 | case TYPE_CODE_COMPLEX: | |
b52cac6b | 305 | case TYPE_CODE_TYPEDEF: |
a91a6192 SS |
306 | /* These types do not need a suffix. They are listed so that |
307 | gcc -Wall will report types that may not have been considered. */ | |
308 | break; | |
309 | } | |
310 | } | |
311 | ||
b607efe7 | 312 | static void |
a91a6192 SS |
313 | print_equivalent_f77_float_type (type, stream) |
314 | struct type *type; | |
315 | FILE *stream; | |
316 | { | |
317 | /* Override type name "float" and make it the | |
318 | appropriate real. XLC stupidly outputs -12 as a type | |
319 | for real when it really should be outputting -18 */ | |
320 | ||
bcbf388e | 321 | fprintf_filtered (stream, "real*%d", TYPE_LENGTH (type)); |
a91a6192 SS |
322 | } |
323 | ||
324 | /* Print the name of the type (or the ultimate pointer target, | |
325 | function value or array element), or the description of a | |
326 | structure or union. | |
327 | ||
328 | SHOW nonzero means don't print this type as just its name; | |
329 | show its real definition even if it has a name. | |
330 | SHOW zero means print just typename or struct tag if there is one | |
331 | SHOW negative means abbreviate structure elements. | |
332 | SHOW is decremented for printing of structure elements. | |
333 | ||
334 | LEVEL is the depth to indent by. | |
335 | We increase it for some recursive calls. */ | |
336 | ||
337 | void | |
338 | f_type_print_base (type, stream, show, level) | |
339 | struct type *type; | |
340 | FILE *stream; | |
341 | int show; | |
342 | int level; | |
343 | { | |
22d7f91e SS |
344 | int retcode; |
345 | int upper_bound; | |
346 | ||
a91a6192 SS |
347 | QUIT; |
348 | ||
349 | wrap_here (" "); | |
350 | if (type == NULL) | |
351 | { | |
352 | fputs_filtered ("<type unknown>", stream); | |
353 | return; | |
354 | } | |
355 | ||
356 | /* When SHOW is zero or less, and there is a valid type name, then always | |
357 | just print the type name directly from the type. */ | |
358 | ||
359 | if ((show <= 0) && (TYPE_NAME (type) != NULL)) | |
360 | { | |
a91a6192 SS |
361 | if (TYPE_CODE (type) == TYPE_CODE_FLT) |
362 | print_equivalent_f77_float_type (type, stream); | |
363 | else | |
364 | fputs_filtered (TYPE_NAME (type), stream); | |
365 | return; | |
366 | } | |
367 | ||
bcbf388e PB |
368 | if (TYPE_CODE (type) != TYPE_CODE_TYPEDEF) |
369 | CHECK_TYPEDEF (type); | |
370 | ||
a91a6192 SS |
371 | switch (TYPE_CODE (type)) |
372 | { | |
bcbf388e PB |
373 | case TYPE_CODE_TYPEDEF: |
374 | f_type_print_base (TYPE_TARGET_TYPE (type), stream, 0, level); | |
a91a6192 SS |
375 | break; |
376 | ||
bcbf388e | 377 | case TYPE_CODE_ARRAY: |
a91a6192 SS |
378 | case TYPE_CODE_FUNC: |
379 | f_type_print_base (TYPE_TARGET_TYPE (type), stream, show, level); | |
380 | break; | |
381 | ||
382 | case TYPE_CODE_PTR: | |
383 | fprintf_filtered (stream, "PTR TO -> ( "); | |
bcbf388e | 384 | f_type_print_base (TYPE_TARGET_TYPE (type), stream, 0, level); |
a91a6192 SS |
385 | break; |
386 | ||
387 | case TYPE_CODE_VOID: | |
388 | fprintf_filtered (stream, "VOID"); | |
389 | break; | |
390 | ||
391 | case TYPE_CODE_UNDEF: | |
392 | fprintf_filtered (stream, "struct <unknown>"); | |
393 | break; | |
394 | ||
395 | case TYPE_CODE_ERROR: | |
396 | fprintf_filtered (stream, "<unknown type>"); | |
397 | break; | |
398 | ||
399 | case TYPE_CODE_RANGE: | |
400 | /* This should not occur */ | |
401 | fprintf_filtered (stream, "<range type>"); | |
402 | break; | |
403 | ||
404 | case TYPE_CODE_CHAR: | |
405 | /* Override name "char" and make it "character" */ | |
406 | fprintf_filtered (stream, "character"); | |
407 | break; | |
408 | ||
409 | case TYPE_CODE_INT: | |
410 | /* There may be some character types that attempt to come | |
411 | through as TYPE_CODE_INT since dbxstclass.h is so | |
412 | C-oriented, we must change these to "character" from "char". */ | |
413 | ||
22d7f91e SS |
414 | if (STREQ (TYPE_NAME (type), "char")) |
415 | fprintf_filtered (stream, "character"); | |
a91a6192 SS |
416 | else |
417 | goto default_case; | |
418 | break; | |
419 | ||
420 | case TYPE_CODE_COMPLEX: | |
bcbf388e | 421 | fprintf_filtered (stream, "complex*%d", TYPE_LENGTH (type)); |
a91a6192 SS |
422 | break; |
423 | ||
424 | case TYPE_CODE_FLT: | |
22d7f91e | 425 | print_equivalent_f77_float_type (type, stream); |
a91a6192 SS |
426 | break; |
427 | ||
a91a6192 | 428 | case TYPE_CODE_STRING: |
22d7f91e | 429 | /* Strings may have dynamic upperbounds (lengths) like arrays. */ |
a91a6192 SS |
430 | |
431 | if (TYPE_ARRAY_UPPER_BOUND_TYPE (type) == BOUND_CANNOT_BE_DETERMINED) | |
85c613aa | 432 | fprintf_filtered (stream, "character*(*)"); |
a91a6192 SS |
433 | else |
434 | { | |
22d7f91e | 435 | retcode = f77_get_dynamic_upperbound (type, &upper_bound); |
a91a6192 SS |
436 | |
437 | if (retcode == BOUND_FETCH_ERROR) | |
22d7f91e | 438 | fprintf_filtered (stream, "character*???"); |
a91a6192 | 439 | else |
22d7f91e | 440 | fprintf_filtered (stream, "character*%d", upper_bound); |
a91a6192 SS |
441 | } |
442 | break; | |
443 | ||
444 | default_case: | |
445 | default: | |
446 | /* Handle types not explicitly handled by the other cases, | |
447 | such as fundamental types. For these, just print whatever | |
448 | the type name is, as recorded in the type itself. If there | |
449 | is no type name, then complain. */ | |
450 | if (TYPE_NAME (type) != NULL) | |
451 | fputs_filtered (TYPE_NAME (type), stream); | |
452 | else | |
453 | error ("Invalid type code (%d) in symbol table.", TYPE_CODE (type)); | |
454 | break; | |
455 | } | |
456 | } |