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Commit | Line | Data |
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c906108c | 1 | /* Support for printing Fortran values for GDB, the GNU debugger. |
a2bd3dcd | 2 | |
6aba47ca | 3 | Copyright (C) 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2003, 2005, 2006, |
7b6bb8da | 4 | 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc. |
a2bd3dcd | 5 | |
c906108c SS |
6 | Contributed by Motorola. Adapted from the C definitions by Farooq Butt |
7 | (fmbutt@engage.sps.mot.com), additionally worked over by Stan Shebs. | |
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" | |
25 | #include "gdb_string.h" | |
26 | #include "symtab.h" | |
27 | #include "gdbtypes.h" | |
28 | #include "expression.h" | |
29 | #include "value.h" | |
c906108c SS |
30 | #include "valprint.h" |
31 | #include "language.h" | |
c5aa993b | 32 | #include "f-lang.h" |
c906108c SS |
33 | #include "frame.h" |
34 | #include "gdbcore.h" | |
35 | #include "command.h" | |
fe898f56 | 36 | #include "block.h" |
c906108c SS |
37 | |
38 | #if 0 | |
a14ed312 | 39 | static int there_is_a_visible_common_named (char *); |
c906108c SS |
40 | #endif |
41 | ||
a14ed312 KB |
42 | extern void _initialize_f_valprint (void); |
43 | static void info_common_command (char *, int); | |
44 | static void list_all_visible_commons (char *); | |
d9fcf2fb JM |
45 | static void f77_create_arrayprint_offset_tbl (struct type *, |
46 | struct ui_file *); | |
a14ed312 | 47 | static void f77_get_dynamic_length_of_aggregate (struct type *); |
c906108c | 48 | |
c5aa993b | 49 | int f77_array_offset_tbl[MAX_FORTRAN_DIMS + 1][2]; |
c906108c SS |
50 | |
51 | /* Array which holds offsets to be applied to get a row's elements | |
0963b4bd | 52 | for a given array. Array also holds the size of each subarray. */ |
c906108c SS |
53 | |
54 | /* The following macro gives us the size of the nth dimension, Where | |
0963b4bd | 55 | n is 1 based. */ |
c906108c SS |
56 | |
57 | #define F77_DIM_SIZE(n) (f77_array_offset_tbl[n][1]) | |
58 | ||
0963b4bd | 59 | /* The following gives us the offset for row n where n is 1-based. */ |
c906108c SS |
60 | |
61 | #define F77_DIM_OFFSET(n) (f77_array_offset_tbl[n][0]) | |
62 | ||
c5aa993b | 63 | int |
d78df370 | 64 | f77_get_lowerbound (struct type *type) |
c906108c | 65 | { |
d78df370 JK |
66 | if (TYPE_ARRAY_LOWER_BOUND_IS_UNDEFINED (type)) |
67 | error (_("Lower bound may not be '*' in F77")); | |
c5aa993b | 68 | |
d78df370 | 69 | return TYPE_ARRAY_LOWER_BOUND_VALUE (type); |
c906108c SS |
70 | } |
71 | ||
c5aa993b | 72 | int |
d78df370 | 73 | f77_get_upperbound (struct type *type) |
c906108c | 74 | { |
d78df370 | 75 | if (TYPE_ARRAY_UPPER_BOUND_IS_UNDEFINED (type)) |
c906108c | 76 | { |
d78df370 JK |
77 | /* We have an assumed size array on our hands. Assume that |
78 | upper_bound == lower_bound so that we show at least 1 element. | |
79 | If the user wants to see more elements, let him manually ask for 'em | |
80 | and we'll subscript the array and show him. */ | |
81 | ||
82 | return f77_get_lowerbound (type); | |
c906108c | 83 | } |
d78df370 JK |
84 | |
85 | return TYPE_ARRAY_UPPER_BOUND_VALUE (type); | |
c906108c SS |
86 | } |
87 | ||
0963b4bd | 88 | /* Obtain F77 adjustable array dimensions. */ |
c906108c SS |
89 | |
90 | static void | |
fba45db2 | 91 | f77_get_dynamic_length_of_aggregate (struct type *type) |
c906108c SS |
92 | { |
93 | int upper_bound = -1; | |
c5aa993b | 94 | int lower_bound = 1; |
c5aa993b | 95 | |
c906108c SS |
96 | /* Recursively go all the way down into a possibly multi-dimensional |
97 | F77 array and get the bounds. For simple arrays, this is pretty | |
98 | easy but when the bounds are dynamic, we must be very careful | |
99 | to add up all the lengths correctly. Not doing this right | |
100 | will lead to horrendous-looking arrays in parameter lists. | |
c5aa993b | 101 | |
c906108c | 102 | This function also works for strings which behave very |
c5aa993b JM |
103 | similarly to arrays. */ |
104 | ||
105 | if (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_ARRAY | |
106 | || TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_STRING) | |
c906108c | 107 | f77_get_dynamic_length_of_aggregate (TYPE_TARGET_TYPE (type)); |
c5aa993b JM |
108 | |
109 | /* Recursion ends here, start setting up lengths. */ | |
d78df370 JK |
110 | lower_bound = f77_get_lowerbound (type); |
111 | upper_bound = f77_get_upperbound (type); | |
c5aa993b | 112 | |
0963b4bd | 113 | /* Patch in a valid length value. */ |
c5aa993b | 114 | |
c906108c | 115 | TYPE_LENGTH (type) = |
3e43a32a MS |
116 | (upper_bound - lower_bound + 1) |
117 | * TYPE_LENGTH (check_typedef (TYPE_TARGET_TYPE (type))); | |
c5aa993b | 118 | } |
c906108c SS |
119 | |
120 | /* Function that sets up the array offset,size table for the array | |
c5aa993b | 121 | type "type". */ |
c906108c | 122 | |
c5aa993b | 123 | static void |
fba45db2 | 124 | f77_create_arrayprint_offset_tbl (struct type *type, struct ui_file *stream) |
c906108c SS |
125 | { |
126 | struct type *tmp_type; | |
127 | int eltlen; | |
128 | int ndimen = 1; | |
9216103f | 129 | int upper, lower; |
c5aa993b JM |
130 | |
131 | tmp_type = type; | |
132 | ||
133 | while ((TYPE_CODE (tmp_type) == TYPE_CODE_ARRAY)) | |
c906108c | 134 | { |
d78df370 JK |
135 | upper = f77_get_upperbound (tmp_type); |
136 | lower = f77_get_lowerbound (tmp_type); | |
c5aa993b | 137 | |
c906108c | 138 | F77_DIM_SIZE (ndimen) = upper - lower + 1; |
c5aa993b | 139 | |
c906108c | 140 | tmp_type = TYPE_TARGET_TYPE (tmp_type); |
c5aa993b | 141 | ndimen++; |
c906108c | 142 | } |
c5aa993b | 143 | |
c906108c SS |
144 | /* Now we multiply eltlen by all the offsets, so that later we |
145 | can print out array elements correctly. Up till now we | |
146 | know an offset to apply to get the item but we also | |
0963b4bd | 147 | have to know how much to add to get to the next item. */ |
c5aa993b | 148 | |
c906108c | 149 | ndimen--; |
c5aa993b | 150 | eltlen = TYPE_LENGTH (tmp_type); |
c906108c SS |
151 | F77_DIM_OFFSET (ndimen) = eltlen; |
152 | while (--ndimen > 0) | |
153 | { | |
154 | eltlen *= F77_DIM_SIZE (ndimen + 1); | |
155 | F77_DIM_OFFSET (ndimen) = eltlen; | |
156 | } | |
157 | } | |
158 | ||
b3cacbee DL |
159 | |
160 | ||
c906108c SS |
161 | /* Actual function which prints out F77 arrays, Valaddr == address in |
162 | the superior. Address == the address in the inferior. */ | |
7b0090c3 | 163 | |
c5aa993b | 164 | static void |
a2bd3dcd | 165 | f77_print_array_1 (int nss, int ndimensions, struct type *type, |
490f124f PA |
166 | const gdb_byte *valaddr, |
167 | int embedded_offset, CORE_ADDR address, | |
79a45b7d | 168 | struct ui_file *stream, int recurse, |
0e03807e | 169 | const struct value *val, |
79a45b7d | 170 | const struct value_print_options *options, |
b3cacbee | 171 | int *elts) |
c906108c SS |
172 | { |
173 | int i; | |
c5aa993b | 174 | |
c906108c SS |
175 | if (nss != ndimensions) |
176 | { | |
3e43a32a MS |
177 | for (i = 0; |
178 | (i < F77_DIM_SIZE (nss) && (*elts) < options->print_max); | |
179 | i++) | |
c906108c SS |
180 | { |
181 | fprintf_filtered (stream, "( "); | |
182 | f77_print_array_1 (nss + 1, ndimensions, TYPE_TARGET_TYPE (type), | |
490f124f PA |
183 | valaddr, |
184 | embedded_offset + i * F77_DIM_OFFSET (nss), | |
185 | address, | |
0e03807e | 186 | stream, recurse, val, options, elts); |
c906108c SS |
187 | fprintf_filtered (stream, ") "); |
188 | } | |
79a45b7d | 189 | if (*elts >= options->print_max && i < F77_DIM_SIZE (nss)) |
b3cacbee | 190 | fprintf_filtered (stream, "..."); |
c906108c SS |
191 | } |
192 | else | |
193 | { | |
79a45b7d | 194 | for (i = 0; i < F77_DIM_SIZE (nss) && (*elts) < options->print_max; |
7b0090c3 | 195 | i++, (*elts)++) |
c906108c SS |
196 | { |
197 | val_print (TYPE_TARGET_TYPE (type), | |
490f124f PA |
198 | valaddr, |
199 | embedded_offset + i * F77_DIM_OFFSET (ndimensions), | |
200 | address, stream, recurse, | |
201 | val, options, current_language); | |
c906108c SS |
202 | |
203 | if (i != (F77_DIM_SIZE (nss) - 1)) | |
c5aa993b JM |
204 | fprintf_filtered (stream, ", "); |
205 | ||
79a45b7d TT |
206 | if ((*elts == options->print_max - 1) |
207 | && (i != (F77_DIM_SIZE (nss) - 1))) | |
c906108c SS |
208 | fprintf_filtered (stream, "..."); |
209 | } | |
210 | } | |
211 | } | |
212 | ||
213 | /* This function gets called to print an F77 array, we set up some | |
0963b4bd | 214 | stuff and then immediately call f77_print_array_1(). */ |
c906108c | 215 | |
c5aa993b | 216 | static void |
fc1a4b47 | 217 | f77_print_array (struct type *type, const gdb_byte *valaddr, |
490f124f | 218 | int embedded_offset, |
a2bd3dcd | 219 | CORE_ADDR address, struct ui_file *stream, |
0e03807e TT |
220 | int recurse, |
221 | const struct value *val, | |
222 | const struct value_print_options *options) | |
c906108c | 223 | { |
c5aa993b | 224 | int ndimensions; |
b3cacbee | 225 | int elts = 0; |
c5aa993b JM |
226 | |
227 | ndimensions = calc_f77_array_dims (type); | |
228 | ||
c906108c | 229 | if (ndimensions > MAX_FORTRAN_DIMS || ndimensions < 0) |
3e43a32a MS |
230 | error (_("\ |
231 | Type node corrupt! F77 arrays cannot have %d subscripts (%d Max)"), | |
c906108c | 232 | ndimensions, MAX_FORTRAN_DIMS); |
c5aa993b | 233 | |
c906108c | 234 | /* Since F77 arrays are stored column-major, we set up an |
0963b4bd MS |
235 | offset table to get at the various row's elements. The |
236 | offset table contains entries for both offset and subarray size. */ | |
c906108c | 237 | |
c5aa993b JM |
238 | f77_create_arrayprint_offset_tbl (type, stream); |
239 | ||
490f124f PA |
240 | f77_print_array_1 (1, ndimensions, type, valaddr, embedded_offset, |
241 | address, stream, recurse, val, options, &elts); | |
c5aa993b | 242 | } |
c906108c | 243 | \f |
c5aa993b | 244 | |
c906108c SS |
245 | /* Print data of type TYPE located at VALADDR (within GDB), which came from |
246 | the inferior at address ADDRESS, onto stdio stream STREAM according to | |
79a45b7d | 247 | OPTIONS. The data at VALADDR is in target byte order. |
c5aa993b | 248 | |
c906108c | 249 | If the data are a string pointer, returns the number of string characters |
79a45b7d | 250 | printed. */ |
c906108c SS |
251 | |
252 | int | |
fc1a4b47 | 253 | f_val_print (struct type *type, const gdb_byte *valaddr, int embedded_offset, |
79a45b7d | 254 | CORE_ADDR address, struct ui_file *stream, int recurse, |
0e03807e | 255 | const struct value *original_value, |
79a45b7d | 256 | const struct value_print_options *options) |
c906108c | 257 | { |
50810684 | 258 | struct gdbarch *gdbarch = get_type_arch (type); |
e17a4113 | 259 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
0963b4bd | 260 | unsigned int i = 0; /* Number of characters printed. */ |
c906108c SS |
261 | struct type *elttype; |
262 | LONGEST val; | |
263 | CORE_ADDR addr; | |
2a5e440c | 264 | int index; |
c5aa993b | 265 | |
c906108c SS |
266 | CHECK_TYPEDEF (type); |
267 | switch (TYPE_CODE (type)) | |
268 | { | |
c5aa993b | 269 | case TYPE_CODE_STRING: |
c906108c | 270 | f77_get_dynamic_length_of_aggregate (type); |
50810684 | 271 | LA_PRINT_STRING (stream, builtin_type (gdbarch)->builtin_char, |
490f124f PA |
272 | valaddr + embedded_offset, |
273 | TYPE_LENGTH (type), NULL, 0, options); | |
c906108c | 274 | break; |
c5aa993b | 275 | |
c906108c | 276 | case TYPE_CODE_ARRAY: |
c5aa993b | 277 | fprintf_filtered (stream, "("); |
490f124f PA |
278 | f77_print_array (type, valaddr, embedded_offset, |
279 | address, stream, recurse, original_value, options); | |
c906108c SS |
280 | fprintf_filtered (stream, ")"); |
281 | break; | |
7e86466e | 282 | |
c906108c | 283 | case TYPE_CODE_PTR: |
79a45b7d | 284 | if (options->format && options->format != 's') |
c906108c | 285 | { |
490f124f PA |
286 | print_scalar_formatted (valaddr + embedded_offset, |
287 | type, options, 0, stream); | |
c906108c SS |
288 | break; |
289 | } | |
290 | else | |
291 | { | |
490f124f | 292 | addr = unpack_pointer (type, valaddr + embedded_offset); |
c906108c | 293 | elttype = check_typedef (TYPE_TARGET_TYPE (type)); |
c5aa993b | 294 | |
c906108c SS |
295 | if (TYPE_CODE (elttype) == TYPE_CODE_FUNC) |
296 | { | |
297 | /* Try to print what function it points to. */ | |
5af949e3 | 298 | print_address_demangle (gdbarch, addr, stream, demangle); |
c906108c SS |
299 | /* Return value is irrelevant except for string pointers. */ |
300 | return 0; | |
301 | } | |
c5aa993b | 302 | |
79a45b7d | 303 | if (options->addressprint && options->format != 's') |
5af949e3 | 304 | fputs_filtered (paddress (gdbarch, addr), stream); |
c5aa993b | 305 | |
c906108c SS |
306 | /* For a pointer to char or unsigned char, also print the string |
307 | pointed to, unless pointer is null. */ | |
308 | if (TYPE_LENGTH (elttype) == 1 | |
309 | && TYPE_CODE (elttype) == TYPE_CODE_INT | |
79a45b7d | 310 | && (options->format == 0 || options->format == 's') |
c906108c | 311 | && addr != 0) |
09ca9e2e TT |
312 | i = val_print_string (TYPE_TARGET_TYPE (type), NULL, addr, -1, |
313 | stream, options); | |
c5aa993b | 314 | |
7e86466e RH |
315 | /* Return number of characters printed, including the terminating |
316 | '\0' if we reached the end. val_print_string takes care including | |
317 | the terminating '\0' if necessary. */ | |
318 | return i; | |
319 | } | |
320 | break; | |
321 | ||
322 | case TYPE_CODE_REF: | |
323 | elttype = check_typedef (TYPE_TARGET_TYPE (type)); | |
79a45b7d | 324 | if (options->addressprint) |
7e86466e RH |
325 | { |
326 | CORE_ADDR addr | |
327 | = extract_typed_address (valaddr + embedded_offset, type); | |
bb9bcb69 | 328 | |
7e86466e | 329 | fprintf_filtered (stream, "@"); |
5af949e3 | 330 | fputs_filtered (paddress (gdbarch, addr), stream); |
79a45b7d | 331 | if (options->deref_ref) |
7e86466e RH |
332 | fputs_filtered (": ", stream); |
333 | } | |
334 | /* De-reference the reference. */ | |
79a45b7d | 335 | if (options->deref_ref) |
7e86466e RH |
336 | { |
337 | if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF) | |
338 | { | |
339 | struct value *deref_val = | |
bb9bcb69 MS |
340 | value_at |
341 | (TYPE_TARGET_TYPE (type), | |
342 | unpack_pointer (type, valaddr + embedded_offset)); | |
343 | ||
79a45b7d TT |
344 | common_val_print (deref_val, stream, recurse, |
345 | options, current_language); | |
7e86466e RH |
346 | } |
347 | else | |
348 | fputs_filtered ("???", stream); | |
c906108c SS |
349 | } |
350 | break; | |
c5aa993b | 351 | |
c906108c | 352 | case TYPE_CODE_FUNC: |
79a45b7d | 353 | if (options->format) |
c906108c | 354 | { |
490f124f PA |
355 | print_scalar_formatted (valaddr + embedded_offset, |
356 | type, options, 0, stream); | |
c906108c SS |
357 | break; |
358 | } | |
359 | /* FIXME, we should consider, at least for ANSI C language, eliminating | |
c5aa993b | 360 | the distinction made between FUNCs and POINTERs to FUNCs. */ |
c906108c SS |
361 | fprintf_filtered (stream, "{"); |
362 | type_print (type, "", stream, -1); | |
363 | fprintf_filtered (stream, "} "); | |
364 | /* Try to print what function it points to, and its address. */ | |
5af949e3 | 365 | print_address_demangle (gdbarch, address, stream, demangle); |
c906108c | 366 | break; |
c5aa993b | 367 | |
c906108c | 368 | case TYPE_CODE_INT: |
79a45b7d TT |
369 | if (options->format || options->output_format) |
370 | { | |
371 | struct value_print_options opts = *options; | |
bb9bcb69 | 372 | |
79a45b7d TT |
373 | opts.format = (options->format ? options->format |
374 | : options->output_format); | |
490f124f PA |
375 | print_scalar_formatted (valaddr + embedded_offset, |
376 | type, &opts, 0, stream); | |
79a45b7d | 377 | } |
c906108c SS |
378 | else |
379 | { | |
490f124f | 380 | val_print_type_code_int (type, valaddr + embedded_offset, stream); |
c906108c SS |
381 | /* C and C++ has no single byte int type, char is used instead. |
382 | Since we don't know whether the value is really intended to | |
383 | be used as an integer or a character, print the character | |
0963b4bd | 384 | equivalent as well. */ |
c906108c SS |
385 | if (TYPE_LENGTH (type) == 1) |
386 | { | |
490f124f PA |
387 | LONGEST c; |
388 | ||
c906108c | 389 | fputs_filtered (" ", stream); |
490f124f PA |
390 | c = unpack_long (type, valaddr + embedded_offset); |
391 | LA_PRINT_CHAR ((unsigned char) c, type, stream); | |
c906108c SS |
392 | } |
393 | } | |
394 | break; | |
c5aa993b | 395 | |
4f2aea11 | 396 | case TYPE_CODE_FLAGS: |
79a45b7d | 397 | if (options->format) |
490f124f PA |
398 | print_scalar_formatted (valaddr + embedded_offset, |
399 | type, options, 0, stream); | |
4f2aea11 | 400 | else |
490f124f | 401 | val_print_type_code_flags (type, valaddr + embedded_offset, stream); |
4f2aea11 MK |
402 | break; |
403 | ||
c906108c | 404 | case TYPE_CODE_FLT: |
79a45b7d | 405 | if (options->format) |
490f124f PA |
406 | print_scalar_formatted (valaddr + embedded_offset, |
407 | type, options, 0, stream); | |
c906108c | 408 | else |
490f124f | 409 | print_floating (valaddr + embedded_offset, type, stream); |
c906108c | 410 | break; |
c5aa993b | 411 | |
c906108c SS |
412 | case TYPE_CODE_VOID: |
413 | fprintf_filtered (stream, "VOID"); | |
414 | break; | |
c5aa993b | 415 | |
c906108c | 416 | case TYPE_CODE_ERROR: |
b00fdb78 | 417 | fprintf_filtered (stream, "%s", TYPE_ERROR_NAME (type)); |
c906108c | 418 | break; |
c5aa993b | 419 | |
c906108c SS |
420 | case TYPE_CODE_RANGE: |
421 | /* FIXME, we should not ever have to print one of these yet. */ | |
422 | fprintf_filtered (stream, "<range type>"); | |
423 | break; | |
c5aa993b | 424 | |
c906108c | 425 | case TYPE_CODE_BOOL: |
79a45b7d TT |
426 | if (options->format || options->output_format) |
427 | { | |
428 | struct value_print_options opts = *options; | |
bb9bcb69 | 429 | |
79a45b7d TT |
430 | opts.format = (options->format ? options->format |
431 | : options->output_format); | |
490f124f PA |
432 | print_scalar_formatted (valaddr + embedded_offset, |
433 | type, &opts, 0, stream); | |
79a45b7d | 434 | } |
c906108c SS |
435 | else |
436 | { | |
490f124f | 437 | val = extract_unsigned_integer (valaddr + embedded_offset, |
e17a4113 | 438 | TYPE_LENGTH (type), byte_order); |
c5aa993b | 439 | if (val == 0) |
c906108c | 440 | fprintf_filtered (stream, ".FALSE."); |
c5aa993b JM |
441 | else if (val == 1) |
442 | fprintf_filtered (stream, ".TRUE."); | |
443 | else | |
444 | /* Not a legitimate logical type, print as an integer. */ | |
445 | { | |
446 | /* Bash the type code temporarily. */ | |
447 | TYPE_CODE (type) = TYPE_CODE_INT; | |
490f124f PA |
448 | val_print (type, valaddr, embedded_offset, |
449 | address, stream, recurse, | |
0e03807e | 450 | original_value, options, current_language); |
0963b4bd | 451 | /* Restore the type code so later uses work as intended. */ |
c5aa993b JM |
452 | TYPE_CODE (type) = TYPE_CODE_BOOL; |
453 | } | |
c906108c SS |
454 | } |
455 | break; | |
c5aa993b | 456 | |
c906108c | 457 | case TYPE_CODE_COMPLEX: |
b806fb9a | 458 | type = TYPE_TARGET_TYPE (type); |
c906108c | 459 | fputs_filtered ("(", stream); |
490f124f | 460 | print_floating (valaddr + embedded_offset, type, stream); |
c906108c | 461 | fputs_filtered (",", stream); |
490f124f PA |
462 | print_floating (valaddr + embedded_offset + TYPE_LENGTH (type), |
463 | type, stream); | |
c906108c SS |
464 | fputs_filtered (")", stream); |
465 | break; | |
c5aa993b | 466 | |
c906108c SS |
467 | case TYPE_CODE_UNDEF: |
468 | /* This happens (without TYPE_FLAG_STUB set) on systems which don't use | |
c5aa993b JM |
469 | dbx xrefs (NO_DBX_XREFS in gcc) if a file has a "struct foo *bar" |
470 | and no complete type for struct foo in that file. */ | |
c906108c SS |
471 | fprintf_filtered (stream, "<incomplete type>"); |
472 | break; | |
c5aa993b | 473 | |
2a5e440c | 474 | case TYPE_CODE_STRUCT: |
9eec4d1e | 475 | case TYPE_CODE_UNION: |
2a5e440c WZ |
476 | /* Starting from the Fortran 90 standard, Fortran supports derived |
477 | types. */ | |
9eec4d1e | 478 | fprintf_filtered (stream, "( "); |
2a5e440c WZ |
479 | for (index = 0; index < TYPE_NFIELDS (type); index++) |
480 | { | |
481 | int offset = TYPE_FIELD_BITPOS (type, index) / 8; | |
bb9bcb69 | 482 | |
490f124f PA |
483 | val_print (TYPE_FIELD_TYPE (type, index), valaddr, |
484 | embedded_offset + offset, | |
485 | address, stream, recurse + 1, | |
0e03807e | 486 | original_value, options, current_language); |
2a5e440c WZ |
487 | if (index != TYPE_NFIELDS (type) - 1) |
488 | fputs_filtered (", ", stream); | |
489 | } | |
9eec4d1e | 490 | fprintf_filtered (stream, " )"); |
2a5e440c WZ |
491 | break; |
492 | ||
c906108c | 493 | default: |
8a3fe4f8 | 494 | error (_("Invalid F77 type code %d in symbol table."), TYPE_CODE (type)); |
c906108c SS |
495 | } |
496 | gdb_flush (stream); | |
497 | return 0; | |
498 | } | |
499 | ||
500 | static void | |
fba45db2 | 501 | list_all_visible_commons (char *funname) |
c906108c | 502 | { |
c5aa993b JM |
503 | SAVED_F77_COMMON_PTR tmp; |
504 | ||
c906108c | 505 | tmp = head_common_list; |
c5aa993b | 506 | |
a3f17187 | 507 | printf_filtered (_("All COMMON blocks visible at this level:\n\n")); |
c5aa993b | 508 | |
c906108c SS |
509 | while (tmp != NULL) |
510 | { | |
762f08a3 | 511 | if (strcmp (tmp->owning_function, funname) == 0) |
c5aa993b JM |
512 | printf_filtered ("%s\n", tmp->name); |
513 | ||
c906108c SS |
514 | tmp = tmp->next; |
515 | } | |
516 | } | |
517 | ||
518 | /* This function is used to print out the values in a given COMMON | |
0963b4bd MS |
519 | block. It will always use the most local common block of the |
520 | given name. */ | |
c906108c | 521 | |
c5aa993b | 522 | static void |
fba45db2 | 523 | info_common_command (char *comname, int from_tty) |
c906108c | 524 | { |
c5aa993b JM |
525 | SAVED_F77_COMMON_PTR the_common; |
526 | COMMON_ENTRY_PTR entry; | |
c906108c | 527 | struct frame_info *fi; |
52f0bd74 | 528 | char *funname = 0; |
c906108c | 529 | struct symbol *func; |
c5aa993b | 530 | |
c906108c SS |
531 | /* We have been told to display the contents of F77 COMMON |
532 | block supposedly visible in this function. Let us | |
533 | first make sure that it is visible and if so, let | |
0963b4bd | 534 | us display its contents. */ |
c5aa993b | 535 | |
206415a3 | 536 | fi = get_selected_frame (_("No frame selected")); |
c5aa993b | 537 | |
c906108c | 538 | /* The following is generally ripped off from stack.c's routine |
0963b4bd | 539 | print_frame_info(). */ |
c5aa993b | 540 | |
bdd78e62 | 541 | func = find_pc_function (get_frame_pc (fi)); |
c906108c SS |
542 | if (func) |
543 | { | |
544 | /* In certain pathological cases, the symtabs give the wrong | |
c5aa993b JM |
545 | function (when we are in the first function in a file which |
546 | is compiled without debugging symbols, the previous function | |
547 | is compiled with debugging symbols, and the "foo.o" symbol | |
548 | that is supposed to tell us where the file with debugging symbols | |
549 | ends has been truncated by ar because it is longer than 15 | |
550 | characters). | |
551 | ||
552 | So look in the minimal symbol tables as well, and if it comes | |
553 | up with a larger address for the function use that instead. | |
554 | I don't think this can ever cause any problems; there shouldn't | |
555 | be any minimal symbols in the middle of a function. | |
0963b4bd | 556 | FIXME: (Not necessarily true. What about text labels?) */ |
c5aa993b | 557 | |
7c6e0d48 MS |
558 | struct minimal_symbol *msymbol = |
559 | lookup_minimal_symbol_by_pc (get_frame_pc (fi)); | |
c5aa993b | 560 | |
c906108c | 561 | if (msymbol != NULL |
c5aa993b | 562 | && (SYMBOL_VALUE_ADDRESS (msymbol) |
c906108c | 563 | > BLOCK_START (SYMBOL_BLOCK_VALUE (func)))) |
3567439c | 564 | funname = SYMBOL_LINKAGE_NAME (msymbol); |
c906108c | 565 | else |
3567439c | 566 | funname = SYMBOL_LINKAGE_NAME (func); |
c906108c SS |
567 | } |
568 | else | |
569 | { | |
aa1ee363 | 570 | struct minimal_symbol *msymbol = |
bb9bcb69 | 571 | lookup_minimal_symbol_by_pc (get_frame_pc (fi)); |
c5aa993b | 572 | |
c906108c | 573 | if (msymbol != NULL) |
3567439c | 574 | funname = SYMBOL_LINKAGE_NAME (msymbol); |
7c6e0d48 MS |
575 | else /* Got no 'funname', code below will fail. */ |
576 | error (_("No function found for frame.")); | |
c906108c | 577 | } |
c5aa993b | 578 | |
c906108c | 579 | /* If comname is NULL, we assume the user wishes to see the |
0963b4bd | 580 | which COMMON blocks are visible here and then return. */ |
c5aa993b | 581 | |
c906108c SS |
582 | if (comname == 0) |
583 | { | |
584 | list_all_visible_commons (funname); | |
c5aa993b | 585 | return; |
c906108c | 586 | } |
c5aa993b JM |
587 | |
588 | the_common = find_common_for_function (comname, funname); | |
589 | ||
c906108c SS |
590 | if (the_common) |
591 | { | |
762f08a3 | 592 | if (strcmp (comname, BLANK_COMMON_NAME_LOCAL) == 0) |
a3f17187 | 593 | printf_filtered (_("Contents of blank COMMON block:\n")); |
c5aa993b | 594 | else |
a3f17187 | 595 | printf_filtered (_("Contents of F77 COMMON block '%s':\n"), comname); |
c5aa993b JM |
596 | |
597 | printf_filtered ("\n"); | |
598 | entry = the_common->entries; | |
599 | ||
c906108c SS |
600 | while (entry != NULL) |
601 | { | |
aad95b57 | 602 | print_variable_and_value (NULL, entry->symbol, fi, gdb_stdout, 0); |
c5aa993b | 603 | entry = entry->next; |
c906108c SS |
604 | } |
605 | } | |
c5aa993b | 606 | else |
a3f17187 | 607 | printf_filtered (_("Cannot locate the common block %s in function '%s'\n"), |
c5aa993b | 608 | comname, funname); |
c906108c SS |
609 | } |
610 | ||
611 | /* This function is used to determine whether there is a | |
0963b4bd | 612 | F77 common block visible at the current scope called 'comname'. */ |
c906108c SS |
613 | |
614 | #if 0 | |
615 | static int | |
fba45db2 | 616 | there_is_a_visible_common_named (char *comname) |
c906108c | 617 | { |
c5aa993b | 618 | SAVED_F77_COMMON_PTR the_common; |
c906108c | 619 | struct frame_info *fi; |
52f0bd74 | 620 | char *funname = 0; |
c906108c | 621 | struct symbol *func; |
c5aa993b | 622 | |
c906108c | 623 | if (comname == NULL) |
8a3fe4f8 | 624 | error (_("Cannot deal with NULL common name!")); |
c5aa993b | 625 | |
206415a3 | 626 | fi = get_selected_frame (_("No frame selected")); |
c5aa993b | 627 | |
c906108c | 628 | /* The following is generally ripped off from stack.c's routine |
0963b4bd | 629 | print_frame_info(). */ |
c5aa993b | 630 | |
c906108c SS |
631 | func = find_pc_function (fi->pc); |
632 | if (func) | |
633 | { | |
634 | /* In certain pathological cases, the symtabs give the wrong | |
c5aa993b JM |
635 | function (when we are in the first function in a file which |
636 | is compiled without debugging symbols, the previous function | |
637 | is compiled with debugging symbols, and the "foo.o" symbol | |
638 | that is supposed to tell us where the file with debugging symbols | |
639 | ends has been truncated by ar because it is longer than 15 | |
640 | characters). | |
641 | ||
642 | So look in the minimal symbol tables as well, and if it comes | |
643 | up with a larger address for the function use that instead. | |
644 | I don't think this can ever cause any problems; there shouldn't | |
645 | be any minimal symbols in the middle of a function. | |
0963b4bd | 646 | FIXME: (Not necessarily true. What about text labels?) */ |
c5aa993b | 647 | |
c906108c | 648 | struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (fi->pc); |
c5aa993b | 649 | |
c906108c | 650 | if (msymbol != NULL |
c5aa993b | 651 | && (SYMBOL_VALUE_ADDRESS (msymbol) |
c906108c | 652 | > BLOCK_START (SYMBOL_BLOCK_VALUE (func)))) |
3567439c | 653 | funname = SYMBOL_LINKAGE_NAME (msymbol); |
c906108c | 654 | else |
3567439c | 655 | funname = SYMBOL_LINKAGE_NAME (func); |
c906108c SS |
656 | } |
657 | else | |
658 | { | |
aa1ee363 | 659 | struct minimal_symbol *msymbol = |
bb9bcb69 | 660 | lookup_minimal_symbol_by_pc (fi->pc); |
c5aa993b | 661 | |
c906108c | 662 | if (msymbol != NULL) |
3567439c | 663 | funname = SYMBOL_LINKAGE_NAME (msymbol); |
c906108c | 664 | } |
c5aa993b JM |
665 | |
666 | the_common = find_common_for_function (comname, funname); | |
667 | ||
c906108c SS |
668 | return (the_common ? 1 : 0); |
669 | } | |
670 | #endif | |
671 | ||
672 | void | |
fba45db2 | 673 | _initialize_f_valprint (void) |
c906108c SS |
674 | { |
675 | add_info ("common", info_common_command, | |
1bedd215 | 676 | _("Print out the values contained in a Fortran COMMON block.")); |
c906108c | 677 | if (xdb_commands) |
c5aa993b | 678 | add_com ("lc", class_info, info_common_command, |
1bedd215 | 679 | _("Print out the values contained in a Fortran COMMON block.")); |
c906108c | 680 | } |