Commit | Line | Data |
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c906108c | 1 | /* Support for printing Fortran values for GDB, the GNU debugger. |
a2bd3dcd | 2 | |
0b302171 JB |
3 | Copyright (C) 1993-1996, 1998-2000, 2003, 2005-2012 Free Software |
4 | 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); | |
0d5cff50 | 44 | static void list_all_visible_commons (const 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 | |
e88acd96 TT |
245 | /* Decorations for Fortran. */ |
246 | ||
247 | static const struct generic_val_print_decorations f_decorations = | |
248 | { | |
249 | "(", | |
250 | ",", | |
251 | ")", | |
252 | ".TRUE.", | |
253 | ".FALSE.", | |
254 | "VOID", | |
255 | }; | |
256 | ||
32b72a42 | 257 | /* See val_print for a description of the various parameters of this |
d3eab38a | 258 | function; they are identical. */ |
c906108c | 259 | |
d3eab38a | 260 | void |
fc1a4b47 | 261 | f_val_print (struct type *type, const gdb_byte *valaddr, int embedded_offset, |
79a45b7d | 262 | CORE_ADDR address, struct ui_file *stream, int recurse, |
0e03807e | 263 | const struct value *original_value, |
79a45b7d | 264 | const struct value_print_options *options) |
c906108c | 265 | { |
50810684 | 266 | struct gdbarch *gdbarch = get_type_arch (type); |
e17a4113 | 267 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
0963b4bd | 268 | unsigned int i = 0; /* Number of characters printed. */ |
c906108c SS |
269 | struct type *elttype; |
270 | LONGEST val; | |
271 | CORE_ADDR addr; | |
2a5e440c | 272 | int index; |
c5aa993b | 273 | |
c906108c SS |
274 | CHECK_TYPEDEF (type); |
275 | switch (TYPE_CODE (type)) | |
276 | { | |
c5aa993b | 277 | case TYPE_CODE_STRING: |
c906108c | 278 | f77_get_dynamic_length_of_aggregate (type); |
50810684 | 279 | LA_PRINT_STRING (stream, builtin_type (gdbarch)->builtin_char, |
490f124f PA |
280 | valaddr + embedded_offset, |
281 | TYPE_LENGTH (type), NULL, 0, options); | |
c906108c | 282 | break; |
c5aa993b | 283 | |
c906108c | 284 | case TYPE_CODE_ARRAY: |
3b2b8fea TT |
285 | if (TYPE_CODE (TYPE_TARGET_TYPE (type)) != TYPE_CODE_CHAR) |
286 | { | |
287 | fprintf_filtered (stream, "("); | |
288 | f77_print_array (type, valaddr, embedded_offset, | |
289 | address, stream, recurse, original_value, options); | |
290 | fprintf_filtered (stream, ")"); | |
291 | } | |
292 | else | |
293 | { | |
294 | struct type *ch_type = TYPE_TARGET_TYPE (type); | |
295 | ||
296 | f77_get_dynamic_length_of_aggregate (type); | |
297 | LA_PRINT_STRING (stream, ch_type, | |
298 | valaddr + embedded_offset, | |
299 | TYPE_LENGTH (type) / TYPE_LENGTH (ch_type), | |
300 | NULL, 0, options); | |
301 | } | |
c906108c | 302 | break; |
7e86466e | 303 | |
c906108c | 304 | case TYPE_CODE_PTR: |
79a45b7d | 305 | if (options->format && options->format != 's') |
c906108c | 306 | { |
ab2188aa PA |
307 | val_print_scalar_formatted (type, valaddr, embedded_offset, |
308 | original_value, options, 0, stream); | |
c906108c SS |
309 | break; |
310 | } | |
311 | else | |
312 | { | |
490f124f | 313 | addr = unpack_pointer (type, valaddr + embedded_offset); |
c906108c | 314 | elttype = check_typedef (TYPE_TARGET_TYPE (type)); |
c5aa993b | 315 | |
c906108c SS |
316 | if (TYPE_CODE (elttype) == TYPE_CODE_FUNC) |
317 | { | |
318 | /* Try to print what function it points to. */ | |
edf0c1b7 | 319 | print_function_pointer_address (options, gdbarch, addr, stream); |
d3eab38a | 320 | return; |
c906108c | 321 | } |
c5aa993b | 322 | |
79a45b7d | 323 | if (options->addressprint && options->format != 's') |
5af949e3 | 324 | fputs_filtered (paddress (gdbarch, addr), stream); |
c5aa993b | 325 | |
c906108c SS |
326 | /* For a pointer to char or unsigned char, also print the string |
327 | pointed to, unless pointer is null. */ | |
328 | if (TYPE_LENGTH (elttype) == 1 | |
329 | && TYPE_CODE (elttype) == TYPE_CODE_INT | |
79a45b7d | 330 | && (options->format == 0 || options->format == 's') |
c906108c | 331 | && addr != 0) |
09ca9e2e TT |
332 | i = val_print_string (TYPE_TARGET_TYPE (type), NULL, addr, -1, |
333 | stream, options); | |
d3eab38a | 334 | return; |
7e86466e RH |
335 | } |
336 | break; | |
337 | ||
c906108c | 338 | case TYPE_CODE_INT: |
79a45b7d TT |
339 | if (options->format || options->output_format) |
340 | { | |
341 | struct value_print_options opts = *options; | |
bb9bcb69 | 342 | |
79a45b7d TT |
343 | opts.format = (options->format ? options->format |
344 | : options->output_format); | |
ab2188aa PA |
345 | val_print_scalar_formatted (type, valaddr, embedded_offset, |
346 | original_value, options, 0, stream); | |
79a45b7d | 347 | } |
c906108c SS |
348 | else |
349 | { | |
490f124f | 350 | val_print_type_code_int (type, valaddr + embedded_offset, stream); |
c906108c SS |
351 | /* C and C++ has no single byte int type, char is used instead. |
352 | Since we don't know whether the value is really intended to | |
353 | be used as an integer or a character, print the character | |
0963b4bd | 354 | equivalent as well. */ |
e88acd96 | 355 | if (TYPE_LENGTH (type) == 1) |
c906108c | 356 | { |
490f124f PA |
357 | LONGEST c; |
358 | ||
c906108c | 359 | fputs_filtered (" ", stream); |
490f124f PA |
360 | c = unpack_long (type, valaddr + embedded_offset); |
361 | LA_PRINT_CHAR ((unsigned char) c, type, stream); | |
c906108c SS |
362 | } |
363 | } | |
364 | break; | |
c5aa993b | 365 | |
2a5e440c | 366 | case TYPE_CODE_STRUCT: |
9eec4d1e | 367 | case TYPE_CODE_UNION: |
2a5e440c WZ |
368 | /* Starting from the Fortran 90 standard, Fortran supports derived |
369 | types. */ | |
9eec4d1e | 370 | fprintf_filtered (stream, "( "); |
2a5e440c WZ |
371 | for (index = 0; index < TYPE_NFIELDS (type); index++) |
372 | { | |
373 | int offset = TYPE_FIELD_BITPOS (type, index) / 8; | |
bb9bcb69 | 374 | |
490f124f PA |
375 | val_print (TYPE_FIELD_TYPE (type, index), valaddr, |
376 | embedded_offset + offset, | |
377 | address, stream, recurse + 1, | |
0e03807e | 378 | original_value, options, current_language); |
2a5e440c WZ |
379 | if (index != TYPE_NFIELDS (type) - 1) |
380 | fputs_filtered (", ", stream); | |
381 | } | |
9eec4d1e | 382 | fprintf_filtered (stream, " )"); |
2a5e440c WZ |
383 | break; |
384 | ||
e88acd96 TT |
385 | case TYPE_CODE_REF: |
386 | case TYPE_CODE_FUNC: | |
387 | case TYPE_CODE_FLAGS: | |
388 | case TYPE_CODE_FLT: | |
389 | case TYPE_CODE_VOID: | |
390 | case TYPE_CODE_ERROR: | |
391 | case TYPE_CODE_RANGE: | |
392 | case TYPE_CODE_UNDEF: | |
393 | case TYPE_CODE_COMPLEX: | |
394 | case TYPE_CODE_BOOL: | |
395 | case TYPE_CODE_CHAR: | |
c906108c | 396 | default: |
e88acd96 TT |
397 | generic_val_print (type, valaddr, embedded_offset, address, |
398 | stream, recurse, original_value, options, | |
399 | &f_decorations); | |
400 | break; | |
c906108c SS |
401 | } |
402 | gdb_flush (stream); | |
c906108c SS |
403 | } |
404 | ||
405 | static void | |
0d5cff50 | 406 | list_all_visible_commons (const char *funname) |
c906108c | 407 | { |
c5aa993b JM |
408 | SAVED_F77_COMMON_PTR tmp; |
409 | ||
c906108c | 410 | tmp = head_common_list; |
c5aa993b | 411 | |
a3f17187 | 412 | printf_filtered (_("All COMMON blocks visible at this level:\n\n")); |
c5aa993b | 413 | |
c906108c SS |
414 | while (tmp != NULL) |
415 | { | |
762f08a3 | 416 | if (strcmp (tmp->owning_function, funname) == 0) |
c5aa993b JM |
417 | printf_filtered ("%s\n", tmp->name); |
418 | ||
c906108c SS |
419 | tmp = tmp->next; |
420 | } | |
421 | } | |
422 | ||
423 | /* This function is used to print out the values in a given COMMON | |
0963b4bd MS |
424 | block. It will always use the most local common block of the |
425 | given name. */ | |
c906108c | 426 | |
c5aa993b | 427 | static void |
fba45db2 | 428 | info_common_command (char *comname, int from_tty) |
c906108c | 429 | { |
c5aa993b JM |
430 | SAVED_F77_COMMON_PTR the_common; |
431 | COMMON_ENTRY_PTR entry; | |
c906108c | 432 | struct frame_info *fi; |
0d5cff50 | 433 | const char *funname = 0; |
c906108c | 434 | struct symbol *func; |
c5aa993b | 435 | |
c906108c SS |
436 | /* We have been told to display the contents of F77 COMMON |
437 | block supposedly visible in this function. Let us | |
438 | first make sure that it is visible and if so, let | |
0963b4bd | 439 | us display its contents. */ |
c5aa993b | 440 | |
206415a3 | 441 | fi = get_selected_frame (_("No frame selected")); |
c5aa993b | 442 | |
c906108c | 443 | /* The following is generally ripped off from stack.c's routine |
0963b4bd | 444 | print_frame_info(). */ |
c5aa993b | 445 | |
bdd78e62 | 446 | func = find_pc_function (get_frame_pc (fi)); |
c906108c SS |
447 | if (func) |
448 | { | |
449 | /* In certain pathological cases, the symtabs give the wrong | |
c5aa993b JM |
450 | function (when we are in the first function in a file which |
451 | is compiled without debugging symbols, the previous function | |
452 | is compiled with debugging symbols, and the "foo.o" symbol | |
453 | that is supposed to tell us where the file with debugging symbols | |
454 | ends has been truncated by ar because it is longer than 15 | |
455 | characters). | |
456 | ||
457 | So look in the minimal symbol tables as well, and if it comes | |
458 | up with a larger address for the function use that instead. | |
459 | I don't think this can ever cause any problems; there shouldn't | |
460 | be any minimal symbols in the middle of a function. | |
0963b4bd | 461 | FIXME: (Not necessarily true. What about text labels?) */ |
c5aa993b | 462 | |
7c6e0d48 MS |
463 | struct minimal_symbol *msymbol = |
464 | lookup_minimal_symbol_by_pc (get_frame_pc (fi)); | |
c5aa993b | 465 | |
c906108c | 466 | if (msymbol != NULL |
c5aa993b | 467 | && (SYMBOL_VALUE_ADDRESS (msymbol) |
c906108c | 468 | > BLOCK_START (SYMBOL_BLOCK_VALUE (func)))) |
3567439c | 469 | funname = SYMBOL_LINKAGE_NAME (msymbol); |
c906108c | 470 | else |
3567439c | 471 | funname = SYMBOL_LINKAGE_NAME (func); |
c906108c SS |
472 | } |
473 | else | |
474 | { | |
aa1ee363 | 475 | struct minimal_symbol *msymbol = |
bb9bcb69 | 476 | lookup_minimal_symbol_by_pc (get_frame_pc (fi)); |
c5aa993b | 477 | |
c906108c | 478 | if (msymbol != NULL) |
3567439c | 479 | funname = SYMBOL_LINKAGE_NAME (msymbol); |
7c6e0d48 MS |
480 | else /* Got no 'funname', code below will fail. */ |
481 | error (_("No function found for frame.")); | |
c906108c | 482 | } |
c5aa993b | 483 | |
c906108c | 484 | /* If comname is NULL, we assume the user wishes to see the |
0963b4bd | 485 | which COMMON blocks are visible here and then return. */ |
c5aa993b | 486 | |
c906108c SS |
487 | if (comname == 0) |
488 | { | |
489 | list_all_visible_commons (funname); | |
c5aa993b | 490 | return; |
c906108c | 491 | } |
c5aa993b JM |
492 | |
493 | the_common = find_common_for_function (comname, funname); | |
494 | ||
c906108c SS |
495 | if (the_common) |
496 | { | |
762f08a3 | 497 | if (strcmp (comname, BLANK_COMMON_NAME_LOCAL) == 0) |
a3f17187 | 498 | printf_filtered (_("Contents of blank COMMON block:\n")); |
c5aa993b | 499 | else |
a3f17187 | 500 | printf_filtered (_("Contents of F77 COMMON block '%s':\n"), comname); |
c5aa993b JM |
501 | |
502 | printf_filtered ("\n"); | |
503 | entry = the_common->entries; | |
504 | ||
c906108c SS |
505 | while (entry != NULL) |
506 | { | |
aad95b57 | 507 | print_variable_and_value (NULL, entry->symbol, fi, gdb_stdout, 0); |
c5aa993b | 508 | entry = entry->next; |
c906108c SS |
509 | } |
510 | } | |
c5aa993b | 511 | else |
a3f17187 | 512 | printf_filtered (_("Cannot locate the common block %s in function '%s'\n"), |
c5aa993b | 513 | comname, funname); |
c906108c SS |
514 | } |
515 | ||
516 | /* This function is used to determine whether there is a | |
0963b4bd | 517 | F77 common block visible at the current scope called 'comname'. */ |
c906108c SS |
518 | |
519 | #if 0 | |
520 | static int | |
fba45db2 | 521 | there_is_a_visible_common_named (char *comname) |
c906108c | 522 | { |
c5aa993b | 523 | SAVED_F77_COMMON_PTR the_common; |
c906108c | 524 | struct frame_info *fi; |
52f0bd74 | 525 | char *funname = 0; |
c906108c | 526 | struct symbol *func; |
c5aa993b | 527 | |
c906108c | 528 | if (comname == NULL) |
8a3fe4f8 | 529 | error (_("Cannot deal with NULL common name!")); |
c5aa993b | 530 | |
206415a3 | 531 | fi = get_selected_frame (_("No frame selected")); |
c5aa993b | 532 | |
c906108c | 533 | /* The following is generally ripped off from stack.c's routine |
0963b4bd | 534 | print_frame_info(). */ |
c5aa993b | 535 | |
c906108c SS |
536 | func = find_pc_function (fi->pc); |
537 | if (func) | |
538 | { | |
539 | /* In certain pathological cases, the symtabs give the wrong | |
c5aa993b JM |
540 | function (when we are in the first function in a file which |
541 | is compiled without debugging symbols, the previous function | |
542 | is compiled with debugging symbols, and the "foo.o" symbol | |
543 | that is supposed to tell us where the file with debugging symbols | |
544 | ends has been truncated by ar because it is longer than 15 | |
545 | characters). | |
546 | ||
547 | So look in the minimal symbol tables as well, and if it comes | |
548 | up with a larger address for the function use that instead. | |
549 | I don't think this can ever cause any problems; there shouldn't | |
550 | be any minimal symbols in the middle of a function. | |
0963b4bd | 551 | FIXME: (Not necessarily true. What about text labels?) */ |
c5aa993b | 552 | |
c906108c | 553 | struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (fi->pc); |
c5aa993b | 554 | |
c906108c | 555 | if (msymbol != NULL |
c5aa993b | 556 | && (SYMBOL_VALUE_ADDRESS (msymbol) |
c906108c | 557 | > BLOCK_START (SYMBOL_BLOCK_VALUE (func)))) |
3567439c | 558 | funname = SYMBOL_LINKAGE_NAME (msymbol); |
c906108c | 559 | else |
3567439c | 560 | funname = SYMBOL_LINKAGE_NAME (func); |
c906108c SS |
561 | } |
562 | else | |
563 | { | |
aa1ee363 | 564 | struct minimal_symbol *msymbol = |
bb9bcb69 | 565 | lookup_minimal_symbol_by_pc (fi->pc); |
c5aa993b | 566 | |
c906108c | 567 | if (msymbol != NULL) |
3567439c | 568 | funname = SYMBOL_LINKAGE_NAME (msymbol); |
c906108c | 569 | } |
c5aa993b JM |
570 | |
571 | the_common = find_common_for_function (comname, funname); | |
572 | ||
c906108c SS |
573 | return (the_common ? 1 : 0); |
574 | } | |
575 | #endif | |
576 | ||
577 | void | |
fba45db2 | 578 | _initialize_f_valprint (void) |
c906108c SS |
579 | { |
580 | add_info ("common", info_common_command, | |
1bedd215 | 581 | _("Print out the values contained in a Fortran COMMON block.")); |
c906108c | 582 | if (xdb_commands) |
c5aa993b | 583 | add_com ("lc", class_info, info_common_command, |
1bedd215 | 584 | _("Print out the values contained in a Fortran COMMON block.")); |
c906108c | 585 | } |