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c906108c | 1 | /* Support for printing Fortran types for GDB, the GNU debugger. |
1bac305b | 2 | |
6aba47ca DJ |
3 | Copyright (C) 1986, 1988, 1989, 1991, 1993, 1994, 1995, 1996, 1998, 2000, |
4 | 2001, 2002, 2003, 2006, 2007 Free Software Foundation, Inc. | |
1bac305b | 5 | |
c906108c SS |
6 | Contributed by Motorola. Adapted from the C version by Farooq Butt |
7 | (fmbutt@engage.sps.mot.com). | |
8 | ||
c5aa993b | 9 | This file is part of GDB. |
c906108c | 10 | |
c5aa993b JM |
11 | This program is free software; you can redistribute it and/or modify |
12 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 13 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 14 | (at your option) any later version. |
c906108c | 15 | |
c5aa993b JM |
16 | This program is distributed in the hope that it will be useful, |
17 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | GNU General Public License for more details. | |
c906108c | 20 | |
c5aa993b | 21 | You should have received a copy of the GNU General Public License |
a9762ec7 | 22 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
23 | |
24 | #include "defs.h" | |
04ea0df1 | 25 | #include "gdb_obstack.h" |
c906108c SS |
26 | #include "bfd.h" |
27 | #include "symtab.h" | |
28 | #include "gdbtypes.h" | |
29 | #include "expression.h" | |
30 | #include "value.h" | |
31 | #include "gdbcore.h" | |
32 | #include "target.h" | |
c906108c | 33 | #include "f-lang.h" |
c906108c SS |
34 | |
35 | #include "gdb_string.h" | |
36 | #include <errno.h> | |
37 | ||
c5aa993b | 38 | #if 0 /* Currently unused */ |
d9fcf2fb | 39 | static void f_type_print_args (struct type *, struct ui_file *); |
c906108c SS |
40 | #endif |
41 | ||
2a5e440c | 42 | static void print_equivalent_f77_float_type (int level, struct type *, |
d9fcf2fb | 43 | struct ui_file *); |
c906108c | 44 | |
d9fcf2fb JM |
45 | static void f_type_print_varspec_suffix (struct type *, struct ui_file *, |
46 | int, int, int); | |
c906108c | 47 | |
d9fcf2fb JM |
48 | void f_type_print_varspec_prefix (struct type *, struct ui_file *, |
49 | int, int); | |
c906108c | 50 | |
d9fcf2fb | 51 | void f_type_print_base (struct type *, struct ui_file *, int, int); |
c906108c | 52 | \f |
c5aa993b | 53 | |
c906108c SS |
54 | /* LEVEL is the depth to indent lines by. */ |
55 | ||
56 | void | |
fba45db2 KB |
57 | f_print_type (struct type *type, char *varstring, struct ui_file *stream, |
58 | int show, int level) | |
c906108c | 59 | { |
52f0bd74 | 60 | enum type_code code; |
c906108c SS |
61 | int demangled_args; |
62 | ||
63 | f_type_print_base (type, stream, show, level); | |
64 | code = TYPE_CODE (type); | |
65 | if ((varstring != NULL && *varstring != '\0') | |
66 | || | |
c5aa993b JM |
67 | /* Need a space if going to print stars or brackets; |
68 | but not if we will print just a type name. */ | |
c906108c SS |
69 | ((show > 0 || TYPE_NAME (type) == 0) |
70 | && | |
71 | (code == TYPE_CODE_PTR || code == TYPE_CODE_FUNC | |
72 | || code == TYPE_CODE_METHOD | |
73 | || code == TYPE_CODE_ARRAY | |
c906108c SS |
74 | || code == TYPE_CODE_REF))) |
75 | fputs_filtered (" ", stream); | |
76 | f_type_print_varspec_prefix (type, stream, show, 0); | |
77 | ||
78 | fputs_filtered (varstring, stream); | |
79 | ||
80 | /* For demangled function names, we have the arglist as part of the name, | |
81 | so don't print an additional pair of ()'s */ | |
82 | ||
c5aa993b | 83 | demangled_args = varstring[strlen (varstring) - 1] == ')'; |
c906108c SS |
84 | f_type_print_varspec_suffix (type, stream, show, 0, demangled_args); |
85 | } | |
86 | ||
87 | /* Print any asterisks or open-parentheses needed before the | |
88 | variable name (to describe its type). | |
89 | ||
90 | On outermost call, pass 0 for PASSED_A_PTR. | |
91 | On outermost call, SHOW > 0 means should ignore | |
92 | any typename for TYPE and show its details. | |
93 | SHOW is always zero on recursive calls. */ | |
94 | ||
95 | void | |
fba45db2 KB |
96 | f_type_print_varspec_prefix (struct type *type, struct ui_file *stream, |
97 | int show, int passed_a_ptr) | |
c906108c SS |
98 | { |
99 | if (type == 0) | |
100 | return; | |
101 | ||
102 | if (TYPE_NAME (type) && show <= 0) | |
103 | return; | |
104 | ||
105 | QUIT; | |
106 | ||
107 | switch (TYPE_CODE (type)) | |
108 | { | |
109 | case TYPE_CODE_PTR: | |
110 | f_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, 0, 1); | |
111 | break; | |
112 | ||
113 | case TYPE_CODE_FUNC: | |
114 | f_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, 0, 0); | |
115 | if (passed_a_ptr) | |
116 | fprintf_filtered (stream, "("); | |
117 | break; | |
118 | ||
119 | case TYPE_CODE_ARRAY: | |
120 | f_type_print_varspec_prefix (TYPE_TARGET_TYPE (type), stream, 0, 0); | |
121 | break; | |
122 | ||
123 | case TYPE_CODE_UNDEF: | |
124 | case TYPE_CODE_STRUCT: | |
125 | case TYPE_CODE_UNION: | |
126 | case TYPE_CODE_ENUM: | |
127 | case TYPE_CODE_INT: | |
128 | case TYPE_CODE_FLT: | |
129 | case TYPE_CODE_VOID: | |
130 | case TYPE_CODE_ERROR: | |
131 | case TYPE_CODE_CHAR: | |
132 | case TYPE_CODE_BOOL: | |
133 | case TYPE_CODE_SET: | |
134 | case TYPE_CODE_RANGE: | |
135 | case TYPE_CODE_STRING: | |
136 | case TYPE_CODE_BITSTRING: | |
137 | case TYPE_CODE_METHOD: | |
c906108c SS |
138 | case TYPE_CODE_REF: |
139 | case TYPE_CODE_COMPLEX: | |
140 | case TYPE_CODE_TYPEDEF: | |
141 | /* These types need no prefix. They are listed here so that | |
c5aa993b | 142 | gcc -Wall will reveal any types that haven't been handled. */ |
c906108c SS |
143 | break; |
144 | } | |
145 | } | |
146 | ||
c906108c SS |
147 | /* Print any array sizes, function arguments or close parentheses |
148 | needed after the variable name (to describe its type). | |
149 | Args work like c_type_print_varspec_prefix. */ | |
150 | ||
151 | static void | |
fba45db2 KB |
152 | f_type_print_varspec_suffix (struct type *type, struct ui_file *stream, |
153 | int show, int passed_a_ptr, int demangled_args) | |
c906108c SS |
154 | { |
155 | int upper_bound, lower_bound; | |
156 | int lower_bound_was_default = 0; | |
157 | static int arrayprint_recurse_level = 0; | |
158 | int retcode; | |
159 | ||
160 | if (type == 0) | |
161 | return; | |
162 | ||
163 | if (TYPE_NAME (type) && show <= 0) | |
164 | return; | |
165 | ||
166 | QUIT; | |
167 | ||
168 | switch (TYPE_CODE (type)) | |
169 | { | |
170 | case TYPE_CODE_ARRAY: | |
171 | arrayprint_recurse_level++; | |
172 | ||
173 | if (arrayprint_recurse_level == 1) | |
c5aa993b | 174 | fprintf_filtered (stream, "("); |
c906108c SS |
175 | |
176 | if (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_ARRAY) | |
177 | f_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, 0, 0, 0); | |
178 | ||
c5aa993b | 179 | retcode = f77_get_dynamic_lowerbound (type, &lower_bound); |
c906108c SS |
180 | |
181 | lower_bound_was_default = 0; | |
182 | ||
183 | if (retcode == BOUND_FETCH_ERROR) | |
c5aa993b JM |
184 | fprintf_filtered (stream, "???"); |
185 | else if (lower_bound == 1) /* The default */ | |
186 | lower_bound_was_default = 1; | |
c906108c | 187 | else |
c5aa993b | 188 | fprintf_filtered (stream, "%d", lower_bound); |
c906108c SS |
189 | |
190 | if (lower_bound_was_default) | |
191 | lower_bound_was_default = 0; | |
192 | else | |
c5aa993b | 193 | fprintf_filtered (stream, ":"); |
c906108c SS |
194 | |
195 | /* Make sure that, if we have an assumed size array, we | |
c5aa993b | 196 | print out a warning and print the upperbound as '*' */ |
c906108c | 197 | |
c5aa993b | 198 | if (TYPE_ARRAY_UPPER_BOUND_TYPE (type) == BOUND_CANNOT_BE_DETERMINED) |
c906108c | 199 | fprintf_filtered (stream, "*"); |
c5aa993b JM |
200 | else |
201 | { | |
202 | retcode = f77_get_dynamic_upperbound (type, &upper_bound); | |
c906108c | 203 | |
c5aa993b JM |
204 | if (retcode == BOUND_FETCH_ERROR) |
205 | fprintf_filtered (stream, "???"); | |
206 | else | |
207 | fprintf_filtered (stream, "%d", upper_bound); | |
208 | } | |
c906108c SS |
209 | |
210 | if (TYPE_CODE (TYPE_TARGET_TYPE (type)) != TYPE_CODE_ARRAY) | |
211 | f_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, 0, 0, 0); | |
212 | if (arrayprint_recurse_level == 1) | |
213 | fprintf_filtered (stream, ")"); | |
214 | else | |
c5aa993b | 215 | fprintf_filtered (stream, ","); |
c906108c SS |
216 | arrayprint_recurse_level--; |
217 | break; | |
218 | ||
219 | case TYPE_CODE_PTR: | |
220 | case TYPE_CODE_REF: | |
221 | f_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, 0, 1, 0); | |
c5aa993b | 222 | fprintf_filtered (stream, ")"); |
c906108c SS |
223 | break; |
224 | ||
225 | case TYPE_CODE_FUNC: | |
226 | f_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream, 0, | |
c5aa993b | 227 | passed_a_ptr, 0); |
c906108c SS |
228 | if (passed_a_ptr) |
229 | fprintf_filtered (stream, ")"); | |
230 | ||
231 | fprintf_filtered (stream, "()"); | |
232 | break; | |
233 | ||
234 | case TYPE_CODE_UNDEF: | |
235 | case TYPE_CODE_STRUCT: | |
236 | case TYPE_CODE_UNION: | |
237 | case TYPE_CODE_ENUM: | |
238 | case TYPE_CODE_INT: | |
239 | case TYPE_CODE_FLT: | |
240 | case TYPE_CODE_VOID: | |
241 | case TYPE_CODE_ERROR: | |
242 | case TYPE_CODE_CHAR: | |
243 | case TYPE_CODE_BOOL: | |
244 | case TYPE_CODE_SET: | |
245 | case TYPE_CODE_RANGE: | |
246 | case TYPE_CODE_STRING: | |
247 | case TYPE_CODE_BITSTRING: | |
248 | case TYPE_CODE_METHOD: | |
c906108c SS |
249 | case TYPE_CODE_COMPLEX: |
250 | case TYPE_CODE_TYPEDEF: | |
251 | /* These types do not need a suffix. They are listed so that | |
c5aa993b | 252 | gcc -Wall will report types that may not have been considered. */ |
c906108c SS |
253 | break; |
254 | } | |
255 | } | |
256 | ||
257 | static void | |
2a5e440c WZ |
258 | print_equivalent_f77_float_type (int level, struct type *type, |
259 | struct ui_file *stream) | |
c906108c SS |
260 | { |
261 | /* Override type name "float" and make it the | |
262 | appropriate real. XLC stupidly outputs -12 as a type | |
263 | for real when it really should be outputting -18 */ | |
264 | ||
2a5e440c | 265 | fprintfi_filtered (level, stream, "real*%d", TYPE_LENGTH (type)); |
c906108c SS |
266 | } |
267 | ||
268 | /* Print the name of the type (or the ultimate pointer target, | |
269 | function value or array element), or the description of a | |
270 | structure or union. | |
271 | ||
272 | SHOW nonzero means don't print this type as just its name; | |
273 | show its real definition even if it has a name. | |
274 | SHOW zero means print just typename or struct tag if there is one | |
275 | SHOW negative means abbreviate structure elements. | |
276 | SHOW is decremented for printing of structure elements. | |
277 | ||
278 | LEVEL is the depth to indent by. | |
279 | We increase it for some recursive calls. */ | |
280 | ||
281 | void | |
fba45db2 KB |
282 | f_type_print_base (struct type *type, struct ui_file *stream, int show, |
283 | int level) | |
c906108c SS |
284 | { |
285 | int retcode; | |
286 | int upper_bound; | |
287 | ||
2a5e440c WZ |
288 | int index; |
289 | ||
c906108c SS |
290 | QUIT; |
291 | ||
292 | wrap_here (" "); | |
293 | if (type == NULL) | |
294 | { | |
295 | fputs_filtered ("<type unknown>", stream); | |
296 | return; | |
297 | } | |
298 | ||
299 | /* When SHOW is zero or less, and there is a valid type name, then always | |
300 | just print the type name directly from the type. */ | |
301 | ||
302 | if ((show <= 0) && (TYPE_NAME (type) != NULL)) | |
303 | { | |
304 | if (TYPE_CODE (type) == TYPE_CODE_FLT) | |
2a5e440c | 305 | print_equivalent_f77_float_type (level, type, stream); |
c906108c SS |
306 | else |
307 | fputs_filtered (TYPE_NAME (type), stream); | |
308 | return; | |
309 | } | |
310 | ||
311 | if (TYPE_CODE (type) != TYPE_CODE_TYPEDEF) | |
312 | CHECK_TYPEDEF (type); | |
313 | ||
314 | switch (TYPE_CODE (type)) | |
315 | { | |
316 | case TYPE_CODE_TYPEDEF: | |
317 | f_type_print_base (TYPE_TARGET_TYPE (type), stream, 0, level); | |
318 | break; | |
319 | ||
320 | case TYPE_CODE_ARRAY: | |
321 | case TYPE_CODE_FUNC: | |
322 | f_type_print_base (TYPE_TARGET_TYPE (type), stream, show, level); | |
323 | break; | |
324 | ||
c5aa993b | 325 | case TYPE_CODE_PTR: |
c906108c SS |
326 | fprintf_filtered (stream, "PTR TO -> ( "); |
327 | f_type_print_base (TYPE_TARGET_TYPE (type), stream, 0, level); | |
7e86466e RH |
328 | break; |
329 | ||
330 | case TYPE_CODE_REF: | |
331 | fprintf_filtered (stream, "REF TO -> ( "); | |
332 | f_type_print_base (TYPE_TARGET_TYPE (type), stream, 0, level); | |
c906108c SS |
333 | break; |
334 | ||
335 | case TYPE_CODE_VOID: | |
2a5e440c | 336 | fprintfi_filtered (level, stream, "VOID"); |
c906108c SS |
337 | break; |
338 | ||
339 | case TYPE_CODE_UNDEF: | |
2a5e440c | 340 | fprintfi_filtered (level, stream, "struct <unknown>"); |
c906108c SS |
341 | break; |
342 | ||
343 | case TYPE_CODE_ERROR: | |
2a5e440c | 344 | fprintfi_filtered (level, stream, "<unknown type>"); |
c906108c SS |
345 | break; |
346 | ||
347 | case TYPE_CODE_RANGE: | |
348 | /* This should not occur */ | |
2a5e440c | 349 | fprintfi_filtered (level, stream, "<range type>"); |
c906108c SS |
350 | break; |
351 | ||
352 | case TYPE_CODE_CHAR: | |
353 | /* Override name "char" and make it "character" */ | |
2a5e440c | 354 | fprintfi_filtered (level, stream, "character"); |
c906108c SS |
355 | break; |
356 | ||
357 | case TYPE_CODE_INT: | |
358 | /* There may be some character types that attempt to come | |
359 | through as TYPE_CODE_INT since dbxstclass.h is so | |
360 | C-oriented, we must change these to "character" from "char". */ | |
361 | ||
bde58177 | 362 | if (strcmp (TYPE_NAME (type), "char") == 0) |
2a5e440c | 363 | fprintfi_filtered (level, stream, "character"); |
c906108c SS |
364 | else |
365 | goto default_case; | |
366 | break; | |
367 | ||
368 | case TYPE_CODE_COMPLEX: | |
2a5e440c | 369 | fprintfi_filtered (level, stream, "complex*%d", TYPE_LENGTH (type)); |
c906108c SS |
370 | break; |
371 | ||
372 | case TYPE_CODE_FLT: | |
2a5e440c | 373 | print_equivalent_f77_float_type (level, type, stream); |
c906108c SS |
374 | break; |
375 | ||
376 | case TYPE_CODE_STRING: | |
377 | /* Strings may have dynamic upperbounds (lengths) like arrays. */ | |
378 | ||
379 | if (TYPE_ARRAY_UPPER_BOUND_TYPE (type) == BOUND_CANNOT_BE_DETERMINED) | |
2a5e440c | 380 | fprintfi_filtered (level, stream, "character*(*)"); |
c906108c SS |
381 | else |
382 | { | |
383 | retcode = f77_get_dynamic_upperbound (type, &upper_bound); | |
384 | ||
385 | if (retcode == BOUND_FETCH_ERROR) | |
386 | fprintf_filtered (stream, "character*???"); | |
387 | else | |
388 | fprintf_filtered (stream, "character*%d", upper_bound); | |
389 | } | |
390 | break; | |
391 | ||
2a5e440c WZ |
392 | case TYPE_CODE_STRUCT: |
393 | fprintfi_filtered (level, stream, "Type "); | |
394 | fputs_filtered (TYPE_TAG_NAME (type), stream); | |
395 | fputs_filtered ("\n", stream); | |
396 | for (index = 0; index < TYPE_NFIELDS (type); index++) | |
397 | { | |
398 | f_print_type (TYPE_FIELD_TYPE (type, index), "", stream, show, level + 4); | |
399 | fputs_filtered (" :: ", stream); | |
400 | fputs_filtered (TYPE_FIELD_NAME (type, index), stream); | |
401 | fputs_filtered ("\n", stream); | |
402 | } | |
403 | fprintfi_filtered (level, stream, "End Type "); | |
404 | fputs_filtered (TYPE_TAG_NAME (type), stream); | |
405 | break; | |
406 | ||
c906108c SS |
407 | default_case: |
408 | default: | |
409 | /* Handle types not explicitly handled by the other cases, | |
c5aa993b JM |
410 | such as fundamental types. For these, just print whatever |
411 | the type name is, as recorded in the type itself. If there | |
412 | is no type name, then complain. */ | |
c906108c | 413 | if (TYPE_NAME (type) != NULL) |
848359ac | 414 | fprintfi_filtered (level, stream, "%s", TYPE_NAME (type)); |
c906108c | 415 | else |
8a3fe4f8 | 416 | error (_("Invalid type code (%d) in symbol table."), TYPE_CODE (type)); |
c906108c SS |
417 | break; |
418 | } | |
419 | } |