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, |
9b254dd1 | 4 | 2007, 2008 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 | |
52 | for a given array. Array also holds the size of each subarray. */ | |
53 | ||
54 | /* The following macro gives us the size of the nth dimension, Where | |
c5aa993b | 55 | n is 1 based. */ |
c906108c SS |
56 | |
57 | #define F77_DIM_SIZE(n) (f77_array_offset_tbl[n][1]) | |
58 | ||
c5aa993b | 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 | ||
c5aa993b | 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 JM |
94 | int lower_bound = 1; |
95 | int retcode; | |
96 | ||
c906108c SS |
97 | /* Recursively go all the way down into a possibly multi-dimensional |
98 | F77 array and get the bounds. For simple arrays, this is pretty | |
99 | easy but when the bounds are dynamic, we must be very careful | |
100 | to add up all the lengths correctly. Not doing this right | |
101 | will lead to horrendous-looking arrays in parameter lists. | |
c5aa993b | 102 | |
c906108c | 103 | This function also works for strings which behave very |
c5aa993b JM |
104 | similarly to arrays. */ |
105 | ||
106 | if (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_ARRAY | |
107 | || TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_STRING) | |
c906108c | 108 | f77_get_dynamic_length_of_aggregate (TYPE_TARGET_TYPE (type)); |
c5aa993b JM |
109 | |
110 | /* Recursion ends here, start setting up lengths. */ | |
d78df370 JK |
111 | lower_bound = f77_get_lowerbound (type); |
112 | upper_bound = f77_get_upperbound (type); | |
c5aa993b JM |
113 | |
114 | /* Patch in a valid length value. */ | |
115 | ||
c906108c SS |
116 | TYPE_LENGTH (type) = |
117 | (upper_bound - lower_bound + 1) * 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; | |
c5aa993b JM |
129 | int upper, lower, retcode; |
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 | |
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, |
fc1a4b47 | 166 | const gdb_byte *valaddr, CORE_ADDR address, |
a2bd3dcd | 167 | struct ui_file *stream, int format, |
b3cacbee DL |
168 | int deref_ref, int recurse, enum val_prettyprint pretty, |
169 | int *elts) | |
c906108c SS |
170 | { |
171 | int i; | |
c5aa993b | 172 | |
c906108c SS |
173 | if (nss != ndimensions) |
174 | { | |
b3cacbee | 175 | for (i = 0; (i < F77_DIM_SIZE (nss) && (*elts) < print_max); i++) |
c906108c SS |
176 | { |
177 | fprintf_filtered (stream, "( "); | |
178 | f77_print_array_1 (nss + 1, ndimensions, TYPE_TARGET_TYPE (type), | |
c5aa993b JM |
179 | valaddr + i * F77_DIM_OFFSET (nss), |
180 | address + i * F77_DIM_OFFSET (nss), | |
b3cacbee | 181 | stream, format, deref_ref, recurse, pretty, elts); |
c906108c SS |
182 | fprintf_filtered (stream, ") "); |
183 | } | |
7b0090c3 | 184 | if (*elts >= print_max && i < F77_DIM_SIZE (nss)) |
b3cacbee | 185 | fprintf_filtered (stream, "..."); |
c906108c SS |
186 | } |
187 | else | |
188 | { | |
7b0090c3 DL |
189 | for (i = 0; i < F77_DIM_SIZE (nss) && (*elts) < print_max; |
190 | i++, (*elts)++) | |
c906108c SS |
191 | { |
192 | val_print (TYPE_TARGET_TYPE (type), | |
193 | valaddr + i * F77_DIM_OFFSET (ndimensions), | |
c5aa993b | 194 | 0, |
c906108c | 195 | address + i * F77_DIM_OFFSET (ndimensions), |
d8ca156b JB |
196 | stream, format, deref_ref, recurse, pretty, |
197 | current_language); | |
c906108c SS |
198 | |
199 | if (i != (F77_DIM_SIZE (nss) - 1)) | |
c5aa993b JM |
200 | fprintf_filtered (stream, ", "); |
201 | ||
7b0090c3 | 202 | if ((*elts == print_max - 1) && (i != (F77_DIM_SIZE (nss) - 1))) |
c906108c SS |
203 | fprintf_filtered (stream, "..."); |
204 | } | |
205 | } | |
206 | } | |
207 | ||
208 | /* This function gets called to print an F77 array, we set up some | |
209 | stuff and then immediately call f77_print_array_1() */ | |
210 | ||
c5aa993b | 211 | static void |
fc1a4b47 | 212 | f77_print_array (struct type *type, const gdb_byte *valaddr, |
a2bd3dcd AC |
213 | CORE_ADDR address, struct ui_file *stream, |
214 | int format, int deref_ref, int recurse, | |
fba45db2 | 215 | enum val_prettyprint pretty) |
c906108c | 216 | { |
c5aa993b | 217 | int ndimensions; |
b3cacbee | 218 | int elts = 0; |
c5aa993b JM |
219 | |
220 | ndimensions = calc_f77_array_dims (type); | |
221 | ||
c906108c | 222 | if (ndimensions > MAX_FORTRAN_DIMS || ndimensions < 0) |
8a3fe4f8 | 223 | error (_("Type node corrupt! F77 arrays cannot have %d subscripts (%d Max)"), |
c906108c | 224 | ndimensions, MAX_FORTRAN_DIMS); |
c5aa993b | 225 | |
c906108c SS |
226 | /* Since F77 arrays are stored column-major, we set up an |
227 | offset table to get at the various row's elements. The | |
c5aa993b | 228 | offset table contains entries for both offset and subarray size. */ |
c906108c | 229 | |
c5aa993b JM |
230 | f77_create_arrayprint_offset_tbl (type, stream); |
231 | ||
232 | f77_print_array_1 (1, ndimensions, type, valaddr, address, stream, format, | |
b3cacbee | 233 | deref_ref, recurse, pretty, &elts); |
c5aa993b | 234 | } |
c906108c | 235 | \f |
c5aa993b | 236 | |
c906108c SS |
237 | /* Print data of type TYPE located at VALADDR (within GDB), which came from |
238 | the inferior at address ADDRESS, onto stdio stream STREAM according to | |
239 | FORMAT (a letter or 0 for natural format). The data at VALADDR is in | |
240 | target byte order. | |
c5aa993b | 241 | |
c906108c SS |
242 | If the data are a string pointer, returns the number of string characters |
243 | printed. | |
c5aa993b | 244 | |
c906108c SS |
245 | If DEREF_REF is nonzero, then dereference references, otherwise just print |
246 | them like pointers. | |
c5aa993b | 247 | |
c906108c SS |
248 | The PRETTY parameter controls prettyprinting. */ |
249 | ||
250 | int | |
fc1a4b47 | 251 | f_val_print (struct type *type, const gdb_byte *valaddr, int embedded_offset, |
fba45db2 KB |
252 | CORE_ADDR address, struct ui_file *stream, int format, |
253 | int deref_ref, int recurse, enum val_prettyprint pretty) | |
c906108c | 254 | { |
52f0bd74 | 255 | unsigned int i = 0; /* Number of characters printed */ |
c906108c SS |
256 | struct type *elttype; |
257 | LONGEST val; | |
258 | CORE_ADDR addr; | |
2a5e440c | 259 | int index; |
c5aa993b | 260 | |
c906108c SS |
261 | CHECK_TYPEDEF (type); |
262 | switch (TYPE_CODE (type)) | |
263 | { | |
c5aa993b | 264 | case TYPE_CODE_STRING: |
c906108c SS |
265 | f77_get_dynamic_length_of_aggregate (type); |
266 | LA_PRINT_STRING (stream, valaddr, TYPE_LENGTH (type), 1, 0); | |
267 | break; | |
c5aa993b | 268 | |
c906108c | 269 | case TYPE_CODE_ARRAY: |
c5aa993b JM |
270 | fprintf_filtered (stream, "("); |
271 | f77_print_array (type, valaddr, address, stream, format, | |
272 | deref_ref, recurse, pretty); | |
c906108c SS |
273 | fprintf_filtered (stream, ")"); |
274 | break; | |
7e86466e | 275 | |
c906108c SS |
276 | case TYPE_CODE_PTR: |
277 | if (format && format != 's') | |
278 | { | |
279 | print_scalar_formatted (valaddr, type, format, 0, stream); | |
280 | break; | |
281 | } | |
282 | else | |
283 | { | |
284 | addr = unpack_pointer (type, valaddr); | |
285 | elttype = check_typedef (TYPE_TARGET_TYPE (type)); | |
c5aa993b | 286 | |
c906108c SS |
287 | if (TYPE_CODE (elttype) == TYPE_CODE_FUNC) |
288 | { | |
289 | /* Try to print what function it points to. */ | |
290 | print_address_demangle (addr, stream, demangle); | |
291 | /* Return value is irrelevant except for string pointers. */ | |
292 | return 0; | |
293 | } | |
c5aa993b | 294 | |
c906108c | 295 | if (addressprint && format != 's') |
ed49a04f | 296 | fputs_filtered (paddress (addr), stream); |
c5aa993b | 297 | |
c906108c SS |
298 | /* For a pointer to char or unsigned char, also print the string |
299 | pointed to, unless pointer is null. */ | |
300 | if (TYPE_LENGTH (elttype) == 1 | |
301 | && TYPE_CODE (elttype) == TYPE_CODE_INT | |
302 | && (format == 0 || format == 's') | |
303 | && addr != 0) | |
304 | i = val_print_string (addr, -1, TYPE_LENGTH (elttype), stream); | |
c5aa993b | 305 | |
7e86466e RH |
306 | /* Return number of characters printed, including the terminating |
307 | '\0' if we reached the end. val_print_string takes care including | |
308 | the terminating '\0' if necessary. */ | |
309 | return i; | |
310 | } | |
311 | break; | |
312 | ||
313 | case TYPE_CODE_REF: | |
314 | elttype = check_typedef (TYPE_TARGET_TYPE (type)); | |
315 | if (addressprint) | |
316 | { | |
317 | CORE_ADDR addr | |
318 | = extract_typed_address (valaddr + embedded_offset, type); | |
319 | fprintf_filtered (stream, "@"); | |
ed49a04f | 320 | fputs_filtered (paddress (addr), stream); |
7e86466e RH |
321 | if (deref_ref) |
322 | fputs_filtered (": ", stream); | |
323 | } | |
324 | /* De-reference the reference. */ | |
325 | if (deref_ref) | |
326 | { | |
327 | if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF) | |
328 | { | |
329 | struct value *deref_val = | |
330 | value_at | |
331 | (TYPE_TARGET_TYPE (type), | |
d8631d21 | 332 | unpack_pointer (type, valaddr + embedded_offset)); |
806048c6 | 333 | common_val_print (deref_val, stream, format, deref_ref, recurse, |
d8ca156b | 334 | pretty, current_language); |
7e86466e RH |
335 | } |
336 | else | |
337 | fputs_filtered ("???", stream); | |
c906108c SS |
338 | } |
339 | break; | |
c5aa993b | 340 | |
c906108c SS |
341 | case TYPE_CODE_FUNC: |
342 | if (format) | |
343 | { | |
344 | print_scalar_formatted (valaddr, type, format, 0, stream); | |
345 | break; | |
346 | } | |
347 | /* FIXME, we should consider, at least for ANSI C language, eliminating | |
c5aa993b | 348 | the distinction made between FUNCs and POINTERs to FUNCs. */ |
c906108c SS |
349 | fprintf_filtered (stream, "{"); |
350 | type_print (type, "", stream, -1); | |
351 | fprintf_filtered (stream, "} "); | |
352 | /* Try to print what function it points to, and its address. */ | |
353 | print_address_demangle (address, stream, demangle); | |
354 | break; | |
c5aa993b | 355 | |
c906108c SS |
356 | case TYPE_CODE_INT: |
357 | format = format ? format : output_format; | |
358 | if (format) | |
359 | print_scalar_formatted (valaddr, type, format, 0, stream); | |
360 | else | |
361 | { | |
362 | val_print_type_code_int (type, valaddr, stream); | |
363 | /* C and C++ has no single byte int type, char is used instead. | |
364 | Since we don't know whether the value is really intended to | |
365 | be used as an integer or a character, print the character | |
366 | equivalent as well. */ | |
367 | if (TYPE_LENGTH (type) == 1) | |
368 | { | |
369 | fputs_filtered (" ", stream); | |
370 | LA_PRINT_CHAR ((unsigned char) unpack_long (type, valaddr), | |
371 | stream); | |
372 | } | |
373 | } | |
374 | break; | |
c5aa993b | 375 | |
4f2aea11 MK |
376 | case TYPE_CODE_FLAGS: |
377 | if (format) | |
378 | print_scalar_formatted (valaddr, type, format, 0, stream); | |
379 | else | |
380 | val_print_type_code_flags (type, valaddr, stream); | |
381 | break; | |
382 | ||
c906108c SS |
383 | case TYPE_CODE_FLT: |
384 | if (format) | |
385 | print_scalar_formatted (valaddr, type, format, 0, stream); | |
386 | else | |
387 | print_floating (valaddr, type, stream); | |
388 | break; | |
c5aa993b | 389 | |
c906108c SS |
390 | case TYPE_CODE_VOID: |
391 | fprintf_filtered (stream, "VOID"); | |
392 | break; | |
c5aa993b | 393 | |
c906108c SS |
394 | case TYPE_CODE_ERROR: |
395 | fprintf_filtered (stream, "<error type>"); | |
396 | break; | |
c5aa993b | 397 | |
c906108c SS |
398 | case TYPE_CODE_RANGE: |
399 | /* FIXME, we should not ever have to print one of these yet. */ | |
400 | fprintf_filtered (stream, "<range type>"); | |
401 | break; | |
c5aa993b | 402 | |
c906108c SS |
403 | case TYPE_CODE_BOOL: |
404 | format = format ? format : output_format; | |
405 | if (format) | |
406 | print_scalar_formatted (valaddr, type, format, 0, stream); | |
407 | else | |
408 | { | |
b806fb9a | 409 | val = extract_unsigned_integer (valaddr, TYPE_LENGTH (type)); |
c5aa993b JM |
410 | |
411 | if (val == 0) | |
c906108c | 412 | fprintf_filtered (stream, ".FALSE."); |
c5aa993b JM |
413 | else if (val == 1) |
414 | fprintf_filtered (stream, ".TRUE."); | |
415 | else | |
416 | /* Not a legitimate logical type, print as an integer. */ | |
417 | { | |
418 | /* Bash the type code temporarily. */ | |
419 | TYPE_CODE (type) = TYPE_CODE_INT; | |
420 | f_val_print (type, valaddr, 0, address, stream, format, | |
421 | deref_ref, recurse, pretty); | |
422 | /* Restore the type code so later uses work as intended. */ | |
423 | TYPE_CODE (type) = TYPE_CODE_BOOL; | |
424 | } | |
c906108c SS |
425 | } |
426 | break; | |
c5aa993b | 427 | |
c906108c | 428 | case TYPE_CODE_COMPLEX: |
b806fb9a | 429 | type = TYPE_TARGET_TYPE (type); |
c906108c SS |
430 | fputs_filtered ("(", stream); |
431 | print_floating (valaddr, type, stream); | |
432 | fputs_filtered (",", stream); | |
9af97293 | 433 | print_floating (valaddr + TYPE_LENGTH (type), type, stream); |
c906108c SS |
434 | fputs_filtered (")", stream); |
435 | break; | |
c5aa993b | 436 | |
c906108c SS |
437 | case TYPE_CODE_UNDEF: |
438 | /* This happens (without TYPE_FLAG_STUB set) on systems which don't use | |
c5aa993b JM |
439 | dbx xrefs (NO_DBX_XREFS in gcc) if a file has a "struct foo *bar" |
440 | and no complete type for struct foo in that file. */ | |
c906108c SS |
441 | fprintf_filtered (stream, "<incomplete type>"); |
442 | break; | |
c5aa993b | 443 | |
2a5e440c | 444 | case TYPE_CODE_STRUCT: |
9eec4d1e | 445 | case TYPE_CODE_UNION: |
2a5e440c WZ |
446 | /* Starting from the Fortran 90 standard, Fortran supports derived |
447 | types. */ | |
9eec4d1e | 448 | fprintf_filtered (stream, "( "); |
2a5e440c WZ |
449 | for (index = 0; index < TYPE_NFIELDS (type); index++) |
450 | { | |
451 | int offset = TYPE_FIELD_BITPOS (type, index) / 8; | |
452 | f_val_print (TYPE_FIELD_TYPE (type, index), valaddr + offset, | |
453 | embedded_offset, address, stream, | |
454 | format, deref_ref, recurse, pretty); | |
455 | if (index != TYPE_NFIELDS (type) - 1) | |
456 | fputs_filtered (", ", stream); | |
457 | } | |
9eec4d1e | 458 | fprintf_filtered (stream, " )"); |
2a5e440c WZ |
459 | break; |
460 | ||
c906108c | 461 | default: |
8a3fe4f8 | 462 | error (_("Invalid F77 type code %d in symbol table."), TYPE_CODE (type)); |
c906108c SS |
463 | } |
464 | gdb_flush (stream); | |
465 | return 0; | |
466 | } | |
467 | ||
468 | static void | |
fba45db2 | 469 | list_all_visible_commons (char *funname) |
c906108c | 470 | { |
c5aa993b JM |
471 | SAVED_F77_COMMON_PTR tmp; |
472 | ||
c906108c | 473 | tmp = head_common_list; |
c5aa993b | 474 | |
a3f17187 | 475 | printf_filtered (_("All COMMON blocks visible at this level:\n\n")); |
c5aa993b | 476 | |
c906108c SS |
477 | while (tmp != NULL) |
478 | { | |
762f08a3 | 479 | if (strcmp (tmp->owning_function, funname) == 0) |
c5aa993b JM |
480 | printf_filtered ("%s\n", tmp->name); |
481 | ||
c906108c SS |
482 | tmp = tmp->next; |
483 | } | |
484 | } | |
485 | ||
486 | /* This function is used to print out the values in a given COMMON | |
487 | block. It will always use the most local common block of the | |
c5aa993b | 488 | given name */ |
c906108c | 489 | |
c5aa993b | 490 | static void |
fba45db2 | 491 | info_common_command (char *comname, int from_tty) |
c906108c | 492 | { |
c5aa993b JM |
493 | SAVED_F77_COMMON_PTR the_common; |
494 | COMMON_ENTRY_PTR entry; | |
c906108c | 495 | struct frame_info *fi; |
52f0bd74 | 496 | char *funname = 0; |
c906108c | 497 | struct symbol *func; |
c5aa993b | 498 | |
c906108c SS |
499 | /* We have been told to display the contents of F77 COMMON |
500 | block supposedly visible in this function. Let us | |
501 | first make sure that it is visible and if so, let | |
c5aa993b JM |
502 | us display its contents */ |
503 | ||
206415a3 | 504 | fi = get_selected_frame (_("No frame selected")); |
c5aa993b | 505 | |
c906108c | 506 | /* The following is generally ripped off from stack.c's routine |
c5aa993b JM |
507 | print_frame_info() */ |
508 | ||
bdd78e62 | 509 | func = find_pc_function (get_frame_pc (fi)); |
c906108c SS |
510 | if (func) |
511 | { | |
512 | /* In certain pathological cases, the symtabs give the wrong | |
c5aa993b JM |
513 | function (when we are in the first function in a file which |
514 | is compiled without debugging symbols, the previous function | |
515 | is compiled with debugging symbols, and the "foo.o" symbol | |
516 | that is supposed to tell us where the file with debugging symbols | |
517 | ends has been truncated by ar because it is longer than 15 | |
518 | characters). | |
519 | ||
520 | So look in the minimal symbol tables as well, and if it comes | |
521 | up with a larger address for the function use that instead. | |
522 | I don't think this can ever cause any problems; there shouldn't | |
523 | be any minimal symbols in the middle of a function. | |
524 | FIXME: (Not necessarily true. What about text labels) */ | |
525 | ||
7c6e0d48 MS |
526 | struct minimal_symbol *msymbol = |
527 | lookup_minimal_symbol_by_pc (get_frame_pc (fi)); | |
c5aa993b | 528 | |
c906108c | 529 | if (msymbol != NULL |
c5aa993b | 530 | && (SYMBOL_VALUE_ADDRESS (msymbol) |
c906108c | 531 | > BLOCK_START (SYMBOL_BLOCK_VALUE (func)))) |
3567439c | 532 | funname = SYMBOL_LINKAGE_NAME (msymbol); |
c906108c | 533 | else |
3567439c | 534 | funname = SYMBOL_LINKAGE_NAME (func); |
c906108c SS |
535 | } |
536 | else | |
537 | { | |
aa1ee363 | 538 | struct minimal_symbol *msymbol = |
bdd78e62 | 539 | lookup_minimal_symbol_by_pc (get_frame_pc (fi)); |
c5aa993b | 540 | |
c906108c | 541 | if (msymbol != NULL) |
3567439c | 542 | funname = SYMBOL_LINKAGE_NAME (msymbol); |
7c6e0d48 MS |
543 | else /* Got no 'funname', code below will fail. */ |
544 | error (_("No function found for frame.")); | |
c906108c | 545 | } |
c5aa993b | 546 | |
c906108c | 547 | /* If comname is NULL, we assume the user wishes to see the |
c5aa993b JM |
548 | which COMMON blocks are visible here and then return */ |
549 | ||
c906108c SS |
550 | if (comname == 0) |
551 | { | |
552 | list_all_visible_commons (funname); | |
c5aa993b | 553 | return; |
c906108c | 554 | } |
c5aa993b JM |
555 | |
556 | the_common = find_common_for_function (comname, funname); | |
557 | ||
c906108c SS |
558 | if (the_common) |
559 | { | |
762f08a3 | 560 | if (strcmp (comname, BLANK_COMMON_NAME_LOCAL) == 0) |
a3f17187 | 561 | printf_filtered (_("Contents of blank COMMON block:\n")); |
c5aa993b | 562 | else |
a3f17187 | 563 | printf_filtered (_("Contents of F77 COMMON block '%s':\n"), comname); |
c5aa993b JM |
564 | |
565 | printf_filtered ("\n"); | |
566 | entry = the_common->entries; | |
567 | ||
c906108c SS |
568 | while (entry != NULL) |
569 | { | |
3567439c | 570 | printf_filtered ("%s = ", SYMBOL_PRINT_NAME (entry->symbol)); |
c5aa993b JM |
571 | print_variable_value (entry->symbol, fi, gdb_stdout); |
572 | printf_filtered ("\n"); | |
573 | entry = entry->next; | |
c906108c SS |
574 | } |
575 | } | |
c5aa993b | 576 | else |
a3f17187 | 577 | printf_filtered (_("Cannot locate the common block %s in function '%s'\n"), |
c5aa993b | 578 | comname, funname); |
c906108c SS |
579 | } |
580 | ||
581 | /* This function is used to determine whether there is a | |
c5aa993b | 582 | F77 common block visible at the current scope called 'comname'. */ |
c906108c SS |
583 | |
584 | #if 0 | |
585 | static int | |
fba45db2 | 586 | there_is_a_visible_common_named (char *comname) |
c906108c | 587 | { |
c5aa993b | 588 | SAVED_F77_COMMON_PTR the_common; |
c906108c | 589 | struct frame_info *fi; |
52f0bd74 | 590 | char *funname = 0; |
c906108c | 591 | struct symbol *func; |
c5aa993b | 592 | |
c906108c | 593 | if (comname == NULL) |
8a3fe4f8 | 594 | error (_("Cannot deal with NULL common name!")); |
c5aa993b | 595 | |
206415a3 | 596 | fi = get_selected_frame (_("No frame selected")); |
c5aa993b | 597 | |
c906108c | 598 | /* The following is generally ripped off from stack.c's routine |
c5aa993b JM |
599 | print_frame_info() */ |
600 | ||
c906108c SS |
601 | func = find_pc_function (fi->pc); |
602 | if (func) | |
603 | { | |
604 | /* In certain pathological cases, the symtabs give the wrong | |
c5aa993b JM |
605 | function (when we are in the first function in a file which |
606 | is compiled without debugging symbols, the previous function | |
607 | is compiled with debugging symbols, and the "foo.o" symbol | |
608 | that is supposed to tell us where the file with debugging symbols | |
609 | ends has been truncated by ar because it is longer than 15 | |
610 | characters). | |
611 | ||
612 | So look in the minimal symbol tables as well, and if it comes | |
613 | up with a larger address for the function use that instead. | |
614 | I don't think this can ever cause any problems; there shouldn't | |
615 | be any minimal symbols in the middle of a function. | |
616 | FIXME: (Not necessarily true. What about text labels) */ | |
617 | ||
c906108c | 618 | struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (fi->pc); |
c5aa993b | 619 | |
c906108c | 620 | if (msymbol != NULL |
c5aa993b | 621 | && (SYMBOL_VALUE_ADDRESS (msymbol) |
c906108c | 622 | > BLOCK_START (SYMBOL_BLOCK_VALUE (func)))) |
3567439c | 623 | funname = SYMBOL_LINKAGE_NAME (msymbol); |
c906108c | 624 | else |
3567439c | 625 | funname = SYMBOL_LINKAGE_NAME (func); |
c906108c SS |
626 | } |
627 | else | |
628 | { | |
aa1ee363 | 629 | struct minimal_symbol *msymbol = |
c5aa993b JM |
630 | lookup_minimal_symbol_by_pc (fi->pc); |
631 | ||
c906108c | 632 | if (msymbol != NULL) |
3567439c | 633 | funname = SYMBOL_LINKAGE_NAME (msymbol); |
c906108c | 634 | } |
c5aa993b JM |
635 | |
636 | the_common = find_common_for_function (comname, funname); | |
637 | ||
c906108c SS |
638 | return (the_common ? 1 : 0); |
639 | } | |
640 | #endif | |
641 | ||
642 | void | |
fba45db2 | 643 | _initialize_f_valprint (void) |
c906108c SS |
644 | { |
645 | add_info ("common", info_common_command, | |
1bedd215 | 646 | _("Print out the values contained in a Fortran COMMON block.")); |
c906108c | 647 | if (xdb_commands) |
c5aa993b | 648 | add_com ("lc", class_info, info_common_command, |
1bedd215 | 649 | _("Print out the values contained in a Fortran COMMON block.")); |
c906108c | 650 | } |