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, |
4c38e0a4 | 4 | 2007, 2008, 2009, 2010 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 | 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 JM |
112 | |
113 | /* Patch in a valid length value. */ | |
114 | ||
c906108c SS |
115 | TYPE_LENGTH (type) = |
116 | (upper_bound - lower_bound + 1) * TYPE_LENGTH (check_typedef (TYPE_TARGET_TYPE (type))); | |
c5aa993b | 117 | } |
c906108c SS |
118 | |
119 | /* Function that sets up the array offset,size table for the array | |
c5aa993b | 120 | type "type". */ |
c906108c | 121 | |
c5aa993b | 122 | static void |
fba45db2 | 123 | f77_create_arrayprint_offset_tbl (struct type *type, struct ui_file *stream) |
c906108c SS |
124 | { |
125 | struct type *tmp_type; | |
126 | int eltlen; | |
127 | int ndimen = 1; | |
9216103f | 128 | int upper, lower; |
c5aa993b JM |
129 | |
130 | tmp_type = type; | |
131 | ||
132 | while ((TYPE_CODE (tmp_type) == TYPE_CODE_ARRAY)) | |
c906108c | 133 | { |
d78df370 JK |
134 | upper = f77_get_upperbound (tmp_type); |
135 | lower = f77_get_lowerbound (tmp_type); | |
c5aa993b | 136 | |
c906108c | 137 | F77_DIM_SIZE (ndimen) = upper - lower + 1; |
c5aa993b | 138 | |
c906108c | 139 | tmp_type = TYPE_TARGET_TYPE (tmp_type); |
c5aa993b | 140 | ndimen++; |
c906108c | 141 | } |
c5aa993b | 142 | |
c906108c SS |
143 | /* Now we multiply eltlen by all the offsets, so that later we |
144 | can print out array elements correctly. Up till now we | |
145 | know an offset to apply to get the item but we also | |
146 | have to know how much to add to get to the next item */ | |
c5aa993b | 147 | |
c906108c | 148 | ndimen--; |
c5aa993b | 149 | eltlen = TYPE_LENGTH (tmp_type); |
c906108c SS |
150 | F77_DIM_OFFSET (ndimen) = eltlen; |
151 | while (--ndimen > 0) | |
152 | { | |
153 | eltlen *= F77_DIM_SIZE (ndimen + 1); | |
154 | F77_DIM_OFFSET (ndimen) = eltlen; | |
155 | } | |
156 | } | |
157 | ||
b3cacbee DL |
158 | |
159 | ||
c906108c SS |
160 | /* Actual function which prints out F77 arrays, Valaddr == address in |
161 | the superior. Address == the address in the inferior. */ | |
7b0090c3 | 162 | |
c5aa993b | 163 | static void |
a2bd3dcd | 164 | f77_print_array_1 (int nss, int ndimensions, struct type *type, |
fc1a4b47 | 165 | const gdb_byte *valaddr, CORE_ADDR address, |
79a45b7d TT |
166 | struct ui_file *stream, int recurse, |
167 | const struct value_print_options *options, | |
b3cacbee | 168 | int *elts) |
c906108c SS |
169 | { |
170 | int i; | |
c5aa993b | 171 | |
c906108c SS |
172 | if (nss != ndimensions) |
173 | { | |
79a45b7d | 174 | for (i = 0; (i < F77_DIM_SIZE (nss) && (*elts) < options->print_max); i++) |
c906108c SS |
175 | { |
176 | fprintf_filtered (stream, "( "); | |
177 | f77_print_array_1 (nss + 1, ndimensions, TYPE_TARGET_TYPE (type), | |
c5aa993b JM |
178 | valaddr + i * F77_DIM_OFFSET (nss), |
179 | address + i * F77_DIM_OFFSET (nss), | |
79a45b7d | 180 | stream, recurse, options, elts); |
c906108c SS |
181 | fprintf_filtered (stream, ") "); |
182 | } | |
79a45b7d | 183 | if (*elts >= options->print_max && i < F77_DIM_SIZE (nss)) |
b3cacbee | 184 | fprintf_filtered (stream, "..."); |
c906108c SS |
185 | } |
186 | else | |
187 | { | |
79a45b7d | 188 | for (i = 0; i < F77_DIM_SIZE (nss) && (*elts) < options->print_max; |
7b0090c3 | 189 | i++, (*elts)++) |
c906108c SS |
190 | { |
191 | val_print (TYPE_TARGET_TYPE (type), | |
192 | valaddr + i * F77_DIM_OFFSET (ndimensions), | |
c5aa993b | 193 | 0, |
c906108c | 194 | address + i * F77_DIM_OFFSET (ndimensions), |
79a45b7d | 195 | stream, recurse, options, current_language); |
c906108c SS |
196 | |
197 | if (i != (F77_DIM_SIZE (nss) - 1)) | |
c5aa993b JM |
198 | fprintf_filtered (stream, ", "); |
199 | ||
79a45b7d TT |
200 | if ((*elts == options->print_max - 1) |
201 | && (i != (F77_DIM_SIZE (nss) - 1))) | |
c906108c SS |
202 | fprintf_filtered (stream, "..."); |
203 | } | |
204 | } | |
205 | } | |
206 | ||
207 | /* This function gets called to print an F77 array, we set up some | |
208 | stuff and then immediately call f77_print_array_1() */ | |
209 | ||
c5aa993b | 210 | static void |
fc1a4b47 | 211 | f77_print_array (struct type *type, const gdb_byte *valaddr, |
a2bd3dcd | 212 | CORE_ADDR address, struct ui_file *stream, |
79a45b7d | 213 | int recurse, const struct value_print_options *options) |
c906108c | 214 | { |
c5aa993b | 215 | int ndimensions; |
b3cacbee | 216 | int elts = 0; |
c5aa993b JM |
217 | |
218 | ndimensions = calc_f77_array_dims (type); | |
219 | ||
c906108c | 220 | if (ndimensions > MAX_FORTRAN_DIMS || ndimensions < 0) |
8a3fe4f8 | 221 | error (_("Type node corrupt! F77 arrays cannot have %d subscripts (%d Max)"), |
c906108c | 222 | ndimensions, MAX_FORTRAN_DIMS); |
c5aa993b | 223 | |
c906108c SS |
224 | /* Since F77 arrays are stored column-major, we set up an |
225 | offset table to get at the various row's elements. The | |
c5aa993b | 226 | offset table contains entries for both offset and subarray size. */ |
c906108c | 227 | |
c5aa993b JM |
228 | f77_create_arrayprint_offset_tbl (type, stream); |
229 | ||
79a45b7d TT |
230 | f77_print_array_1 (1, ndimensions, type, valaddr, address, stream, |
231 | recurse, options, &elts); | |
c5aa993b | 232 | } |
c906108c | 233 | \f |
c5aa993b | 234 | |
c906108c SS |
235 | /* Print data of type TYPE located at VALADDR (within GDB), which came from |
236 | the inferior at address ADDRESS, onto stdio stream STREAM according to | |
79a45b7d | 237 | OPTIONS. The data at VALADDR is in target byte order. |
c5aa993b | 238 | |
c906108c | 239 | If the data are a string pointer, returns the number of string characters |
79a45b7d | 240 | printed. */ |
c906108c SS |
241 | |
242 | int | |
fc1a4b47 | 243 | f_val_print (struct type *type, const gdb_byte *valaddr, int embedded_offset, |
79a45b7d TT |
244 | CORE_ADDR address, struct ui_file *stream, int recurse, |
245 | const struct value_print_options *options) | |
c906108c | 246 | { |
50810684 | 247 | struct gdbarch *gdbarch = get_type_arch (type); |
e17a4113 | 248 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
52f0bd74 | 249 | unsigned int i = 0; /* Number of characters printed */ |
c906108c SS |
250 | struct type *elttype; |
251 | LONGEST val; | |
252 | CORE_ADDR addr; | |
2a5e440c | 253 | int index; |
c5aa993b | 254 | |
c906108c SS |
255 | CHECK_TYPEDEF (type); |
256 | switch (TYPE_CODE (type)) | |
257 | { | |
c5aa993b | 258 | case TYPE_CODE_STRING: |
c906108c | 259 | f77_get_dynamic_length_of_aggregate (type); |
50810684 | 260 | LA_PRINT_STRING (stream, builtin_type (gdbarch)->builtin_char, |
be759fcf | 261 | valaddr, TYPE_LENGTH (type), NULL, 0, options); |
c906108c | 262 | break; |
c5aa993b | 263 | |
c906108c | 264 | case TYPE_CODE_ARRAY: |
c5aa993b | 265 | fprintf_filtered (stream, "("); |
79a45b7d | 266 | f77_print_array (type, valaddr, address, stream, recurse, options); |
c906108c SS |
267 | fprintf_filtered (stream, ")"); |
268 | break; | |
7e86466e | 269 | |
c906108c | 270 | case TYPE_CODE_PTR: |
79a45b7d | 271 | if (options->format && options->format != 's') |
c906108c | 272 | { |
79a45b7d | 273 | print_scalar_formatted (valaddr, type, options, 0, stream); |
c906108c SS |
274 | break; |
275 | } | |
276 | else | |
277 | { | |
278 | addr = unpack_pointer (type, valaddr); | |
279 | elttype = check_typedef (TYPE_TARGET_TYPE (type)); | |
c5aa993b | 280 | |
c906108c SS |
281 | if (TYPE_CODE (elttype) == TYPE_CODE_FUNC) |
282 | { | |
283 | /* Try to print what function it points to. */ | |
5af949e3 | 284 | print_address_demangle (gdbarch, addr, stream, demangle); |
c906108c SS |
285 | /* Return value is irrelevant except for string pointers. */ |
286 | return 0; | |
287 | } | |
c5aa993b | 288 | |
79a45b7d | 289 | if (options->addressprint && options->format != 's') |
5af949e3 | 290 | fputs_filtered (paddress (gdbarch, addr), stream); |
c5aa993b | 291 | |
c906108c SS |
292 | /* For a pointer to char or unsigned char, also print the string |
293 | pointed to, unless pointer is null. */ | |
294 | if (TYPE_LENGTH (elttype) == 1 | |
295 | && TYPE_CODE (elttype) == TYPE_CODE_INT | |
79a45b7d | 296 | && (options->format == 0 || options->format == 's') |
c906108c | 297 | && addr != 0) |
6c7a06a3 | 298 | i = val_print_string (TYPE_TARGET_TYPE (type), addr, -1, stream, |
79a45b7d | 299 | options); |
c5aa993b | 300 | |
7e86466e RH |
301 | /* Return number of characters printed, including the terminating |
302 | '\0' if we reached the end. val_print_string takes care including | |
303 | the terminating '\0' if necessary. */ | |
304 | return i; | |
305 | } | |
306 | break; | |
307 | ||
308 | case TYPE_CODE_REF: | |
309 | elttype = check_typedef (TYPE_TARGET_TYPE (type)); | |
79a45b7d | 310 | if (options->addressprint) |
7e86466e RH |
311 | { |
312 | CORE_ADDR addr | |
313 | = extract_typed_address (valaddr + embedded_offset, type); | |
bb9bcb69 | 314 | |
7e86466e | 315 | fprintf_filtered (stream, "@"); |
5af949e3 | 316 | fputs_filtered (paddress (gdbarch, addr), stream); |
79a45b7d | 317 | if (options->deref_ref) |
7e86466e RH |
318 | fputs_filtered (": ", stream); |
319 | } | |
320 | /* De-reference the reference. */ | |
79a45b7d | 321 | if (options->deref_ref) |
7e86466e RH |
322 | { |
323 | if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF) | |
324 | { | |
325 | struct value *deref_val = | |
bb9bcb69 MS |
326 | value_at |
327 | (TYPE_TARGET_TYPE (type), | |
328 | unpack_pointer (type, valaddr + embedded_offset)); | |
329 | ||
79a45b7d TT |
330 | common_val_print (deref_val, stream, recurse, |
331 | options, current_language); | |
7e86466e RH |
332 | } |
333 | else | |
334 | fputs_filtered ("???", stream); | |
c906108c SS |
335 | } |
336 | break; | |
c5aa993b | 337 | |
c906108c | 338 | case TYPE_CODE_FUNC: |
79a45b7d | 339 | if (options->format) |
c906108c | 340 | { |
79a45b7d | 341 | print_scalar_formatted (valaddr, type, options, 0, stream); |
c906108c SS |
342 | break; |
343 | } | |
344 | /* FIXME, we should consider, at least for ANSI C language, eliminating | |
c5aa993b | 345 | the distinction made between FUNCs and POINTERs to FUNCs. */ |
c906108c SS |
346 | fprintf_filtered (stream, "{"); |
347 | type_print (type, "", stream, -1); | |
348 | fprintf_filtered (stream, "} "); | |
349 | /* Try to print what function it points to, and its address. */ | |
5af949e3 | 350 | print_address_demangle (gdbarch, address, stream, demangle); |
c906108c | 351 | break; |
c5aa993b | 352 | |
c906108c | 353 | case TYPE_CODE_INT: |
79a45b7d TT |
354 | if (options->format || options->output_format) |
355 | { | |
356 | struct value_print_options opts = *options; | |
bb9bcb69 | 357 | |
79a45b7d TT |
358 | opts.format = (options->format ? options->format |
359 | : options->output_format); | |
360 | print_scalar_formatted (valaddr, type, &opts, 0, stream); | |
361 | } | |
c906108c SS |
362 | else |
363 | { | |
364 | val_print_type_code_int (type, valaddr, stream); | |
365 | /* C and C++ has no single byte int type, char is used instead. | |
366 | Since we don't know whether the value is really intended to | |
367 | be used as an integer or a character, print the character | |
368 | equivalent as well. */ | |
369 | if (TYPE_LENGTH (type) == 1) | |
370 | { | |
371 | fputs_filtered (" ", stream); | |
372 | LA_PRINT_CHAR ((unsigned char) unpack_long (type, valaddr), | |
6c7a06a3 | 373 | type, stream); |
c906108c SS |
374 | } |
375 | } | |
376 | break; | |
c5aa993b | 377 | |
4f2aea11 | 378 | case TYPE_CODE_FLAGS: |
79a45b7d TT |
379 | if (options->format) |
380 | print_scalar_formatted (valaddr, type, options, 0, stream); | |
4f2aea11 MK |
381 | else |
382 | val_print_type_code_flags (type, valaddr, stream); | |
383 | break; | |
384 | ||
c906108c | 385 | case TYPE_CODE_FLT: |
79a45b7d TT |
386 | if (options->format) |
387 | print_scalar_formatted (valaddr, type, options, 0, stream); | |
c906108c SS |
388 | else |
389 | print_floating (valaddr, type, stream); | |
390 | break; | |
c5aa993b | 391 | |
c906108c SS |
392 | case TYPE_CODE_VOID: |
393 | fprintf_filtered (stream, "VOID"); | |
394 | break; | |
c5aa993b | 395 | |
c906108c SS |
396 | case TYPE_CODE_ERROR: |
397 | fprintf_filtered (stream, "<error type>"); | |
398 | break; | |
c5aa993b | 399 | |
c906108c SS |
400 | case TYPE_CODE_RANGE: |
401 | /* FIXME, we should not ever have to print one of these yet. */ | |
402 | fprintf_filtered (stream, "<range type>"); | |
403 | break; | |
c5aa993b | 404 | |
c906108c | 405 | case TYPE_CODE_BOOL: |
79a45b7d TT |
406 | if (options->format || options->output_format) |
407 | { | |
408 | struct value_print_options opts = *options; | |
bb9bcb69 | 409 | |
79a45b7d TT |
410 | opts.format = (options->format ? options->format |
411 | : options->output_format); | |
412 | print_scalar_formatted (valaddr, type, &opts, 0, stream); | |
413 | } | |
c906108c SS |
414 | else |
415 | { | |
e17a4113 UW |
416 | val = extract_unsigned_integer (valaddr, |
417 | TYPE_LENGTH (type), byte_order); | |
c5aa993b | 418 | if (val == 0) |
c906108c | 419 | fprintf_filtered (stream, ".FALSE."); |
c5aa993b JM |
420 | else if (val == 1) |
421 | fprintf_filtered (stream, ".TRUE."); | |
422 | else | |
423 | /* Not a legitimate logical type, print as an integer. */ | |
424 | { | |
425 | /* Bash the type code temporarily. */ | |
426 | TYPE_CODE (type) = TYPE_CODE_INT; | |
79a45b7d | 427 | f_val_print (type, valaddr, 0, address, stream, recurse, options); |
c5aa993b JM |
428 | /* Restore the type code so later uses work as intended. */ |
429 | TYPE_CODE (type) = TYPE_CODE_BOOL; | |
430 | } | |
c906108c SS |
431 | } |
432 | break; | |
c5aa993b | 433 | |
c906108c | 434 | case TYPE_CODE_COMPLEX: |
b806fb9a | 435 | type = TYPE_TARGET_TYPE (type); |
c906108c SS |
436 | fputs_filtered ("(", stream); |
437 | print_floating (valaddr, type, stream); | |
438 | fputs_filtered (",", stream); | |
9af97293 | 439 | print_floating (valaddr + TYPE_LENGTH (type), type, stream); |
c906108c SS |
440 | fputs_filtered (")", stream); |
441 | break; | |
c5aa993b | 442 | |
c906108c SS |
443 | case TYPE_CODE_UNDEF: |
444 | /* This happens (without TYPE_FLAG_STUB set) on systems which don't use | |
c5aa993b JM |
445 | dbx xrefs (NO_DBX_XREFS in gcc) if a file has a "struct foo *bar" |
446 | and no complete type for struct foo in that file. */ | |
c906108c SS |
447 | fprintf_filtered (stream, "<incomplete type>"); |
448 | break; | |
c5aa993b | 449 | |
2a5e440c | 450 | case TYPE_CODE_STRUCT: |
9eec4d1e | 451 | case TYPE_CODE_UNION: |
2a5e440c WZ |
452 | /* Starting from the Fortran 90 standard, Fortran supports derived |
453 | types. */ | |
9eec4d1e | 454 | fprintf_filtered (stream, "( "); |
2a5e440c WZ |
455 | for (index = 0; index < TYPE_NFIELDS (type); index++) |
456 | { | |
457 | int offset = TYPE_FIELD_BITPOS (type, index) / 8; | |
bb9bcb69 | 458 | |
2a5e440c | 459 | f_val_print (TYPE_FIELD_TYPE (type, index), valaddr + offset, |
79a45b7d | 460 | embedded_offset, address, stream, recurse, options); |
2a5e440c WZ |
461 | if (index != TYPE_NFIELDS (type) - 1) |
462 | fputs_filtered (", ", stream); | |
463 | } | |
9eec4d1e | 464 | fprintf_filtered (stream, " )"); |
2a5e440c WZ |
465 | break; |
466 | ||
c906108c | 467 | default: |
8a3fe4f8 | 468 | error (_("Invalid F77 type code %d in symbol table."), TYPE_CODE (type)); |
c906108c SS |
469 | } |
470 | gdb_flush (stream); | |
471 | return 0; | |
472 | } | |
473 | ||
474 | static void | |
fba45db2 | 475 | list_all_visible_commons (char *funname) |
c906108c | 476 | { |
c5aa993b JM |
477 | SAVED_F77_COMMON_PTR tmp; |
478 | ||
c906108c | 479 | tmp = head_common_list; |
c5aa993b | 480 | |
a3f17187 | 481 | printf_filtered (_("All COMMON blocks visible at this level:\n\n")); |
c5aa993b | 482 | |
c906108c SS |
483 | while (tmp != NULL) |
484 | { | |
762f08a3 | 485 | if (strcmp (tmp->owning_function, funname) == 0) |
c5aa993b JM |
486 | printf_filtered ("%s\n", tmp->name); |
487 | ||
c906108c SS |
488 | tmp = tmp->next; |
489 | } | |
490 | } | |
491 | ||
492 | /* This function is used to print out the values in a given COMMON | |
493 | block. It will always use the most local common block of the | |
c5aa993b | 494 | given name */ |
c906108c | 495 | |
c5aa993b | 496 | static void |
fba45db2 | 497 | info_common_command (char *comname, int from_tty) |
c906108c | 498 | { |
c5aa993b JM |
499 | SAVED_F77_COMMON_PTR the_common; |
500 | COMMON_ENTRY_PTR entry; | |
c906108c | 501 | struct frame_info *fi; |
52f0bd74 | 502 | char *funname = 0; |
c906108c | 503 | struct symbol *func; |
c5aa993b | 504 | |
c906108c SS |
505 | /* We have been told to display the contents of F77 COMMON |
506 | block supposedly visible in this function. Let us | |
507 | first make sure that it is visible and if so, let | |
c5aa993b JM |
508 | us display its contents */ |
509 | ||
206415a3 | 510 | fi = get_selected_frame (_("No frame selected")); |
c5aa993b | 511 | |
c906108c | 512 | /* The following is generally ripped off from stack.c's routine |
c5aa993b JM |
513 | print_frame_info() */ |
514 | ||
bdd78e62 | 515 | func = find_pc_function (get_frame_pc (fi)); |
c906108c SS |
516 | if (func) |
517 | { | |
518 | /* In certain pathological cases, the symtabs give the wrong | |
c5aa993b JM |
519 | function (when we are in the first function in a file which |
520 | is compiled without debugging symbols, the previous function | |
521 | is compiled with debugging symbols, and the "foo.o" symbol | |
522 | that is supposed to tell us where the file with debugging symbols | |
523 | ends has been truncated by ar because it is longer than 15 | |
524 | characters). | |
525 | ||
526 | So look in the minimal symbol tables as well, and if it comes | |
527 | up with a larger address for the function use that instead. | |
528 | I don't think this can ever cause any problems; there shouldn't | |
529 | be any minimal symbols in the middle of a function. | |
530 | FIXME: (Not necessarily true. What about text labels) */ | |
531 | ||
7c6e0d48 MS |
532 | struct minimal_symbol *msymbol = |
533 | lookup_minimal_symbol_by_pc (get_frame_pc (fi)); | |
c5aa993b | 534 | |
c906108c | 535 | if (msymbol != NULL |
c5aa993b | 536 | && (SYMBOL_VALUE_ADDRESS (msymbol) |
c906108c | 537 | > BLOCK_START (SYMBOL_BLOCK_VALUE (func)))) |
3567439c | 538 | funname = SYMBOL_LINKAGE_NAME (msymbol); |
c906108c | 539 | else |
3567439c | 540 | funname = SYMBOL_LINKAGE_NAME (func); |
c906108c SS |
541 | } |
542 | else | |
543 | { | |
aa1ee363 | 544 | struct minimal_symbol *msymbol = |
bb9bcb69 | 545 | lookup_minimal_symbol_by_pc (get_frame_pc (fi)); |
c5aa993b | 546 | |
c906108c | 547 | if (msymbol != NULL) |
3567439c | 548 | funname = SYMBOL_LINKAGE_NAME (msymbol); |
7c6e0d48 MS |
549 | else /* Got no 'funname', code below will fail. */ |
550 | error (_("No function found for frame.")); | |
c906108c | 551 | } |
c5aa993b | 552 | |
c906108c | 553 | /* If comname is NULL, we assume the user wishes to see the |
c5aa993b JM |
554 | which COMMON blocks are visible here and then return */ |
555 | ||
c906108c SS |
556 | if (comname == 0) |
557 | { | |
558 | list_all_visible_commons (funname); | |
c5aa993b | 559 | return; |
c906108c | 560 | } |
c5aa993b JM |
561 | |
562 | the_common = find_common_for_function (comname, funname); | |
563 | ||
c906108c SS |
564 | if (the_common) |
565 | { | |
762f08a3 | 566 | if (strcmp (comname, BLANK_COMMON_NAME_LOCAL) == 0) |
a3f17187 | 567 | printf_filtered (_("Contents of blank COMMON block:\n")); |
c5aa993b | 568 | else |
a3f17187 | 569 | printf_filtered (_("Contents of F77 COMMON block '%s':\n"), comname); |
c5aa993b JM |
570 | |
571 | printf_filtered ("\n"); | |
572 | entry = the_common->entries; | |
573 | ||
c906108c SS |
574 | while (entry != NULL) |
575 | { | |
aad95b57 | 576 | print_variable_and_value (NULL, entry->symbol, fi, gdb_stdout, 0); |
c5aa993b | 577 | entry = entry->next; |
c906108c SS |
578 | } |
579 | } | |
c5aa993b | 580 | else |
a3f17187 | 581 | printf_filtered (_("Cannot locate the common block %s in function '%s'\n"), |
c5aa993b | 582 | comname, funname); |
c906108c SS |
583 | } |
584 | ||
585 | /* This function is used to determine whether there is a | |
c5aa993b | 586 | F77 common block visible at the current scope called 'comname'. */ |
c906108c SS |
587 | |
588 | #if 0 | |
589 | static int | |
fba45db2 | 590 | there_is_a_visible_common_named (char *comname) |
c906108c | 591 | { |
c5aa993b | 592 | SAVED_F77_COMMON_PTR the_common; |
c906108c | 593 | struct frame_info *fi; |
52f0bd74 | 594 | char *funname = 0; |
c906108c | 595 | struct symbol *func; |
c5aa993b | 596 | |
c906108c | 597 | if (comname == NULL) |
8a3fe4f8 | 598 | error (_("Cannot deal with NULL common name!")); |
c5aa993b | 599 | |
206415a3 | 600 | fi = get_selected_frame (_("No frame selected")); |
c5aa993b | 601 | |
c906108c | 602 | /* The following is generally ripped off from stack.c's routine |
c5aa993b JM |
603 | print_frame_info() */ |
604 | ||
c906108c SS |
605 | func = find_pc_function (fi->pc); |
606 | if (func) | |
607 | { | |
608 | /* In certain pathological cases, the symtabs give the wrong | |
c5aa993b JM |
609 | function (when we are in the first function in a file which |
610 | is compiled without debugging symbols, the previous function | |
611 | is compiled with debugging symbols, and the "foo.o" symbol | |
612 | that is supposed to tell us where the file with debugging symbols | |
613 | ends has been truncated by ar because it is longer than 15 | |
614 | characters). | |
615 | ||
616 | So look in the minimal symbol tables as well, and if it comes | |
617 | up with a larger address for the function use that instead. | |
618 | I don't think this can ever cause any problems; there shouldn't | |
619 | be any minimal symbols in the middle of a function. | |
620 | FIXME: (Not necessarily true. What about text labels) */ | |
621 | ||
c906108c | 622 | struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (fi->pc); |
c5aa993b | 623 | |
c906108c | 624 | if (msymbol != NULL |
c5aa993b | 625 | && (SYMBOL_VALUE_ADDRESS (msymbol) |
c906108c | 626 | > BLOCK_START (SYMBOL_BLOCK_VALUE (func)))) |
3567439c | 627 | funname = SYMBOL_LINKAGE_NAME (msymbol); |
c906108c | 628 | else |
3567439c | 629 | funname = SYMBOL_LINKAGE_NAME (func); |
c906108c SS |
630 | } |
631 | else | |
632 | { | |
aa1ee363 | 633 | struct minimal_symbol *msymbol = |
bb9bcb69 | 634 | lookup_minimal_symbol_by_pc (fi->pc); |
c5aa993b | 635 | |
c906108c | 636 | if (msymbol != NULL) |
3567439c | 637 | funname = SYMBOL_LINKAGE_NAME (msymbol); |
c906108c | 638 | } |
c5aa993b JM |
639 | |
640 | the_common = find_common_for_function (comname, funname); | |
641 | ||
c906108c SS |
642 | return (the_common ? 1 : 0); |
643 | } | |
644 | #endif | |
645 | ||
646 | void | |
fba45db2 | 647 | _initialize_f_valprint (void) |
c906108c SS |
648 | { |
649 | add_info ("common", info_common_command, | |
1bedd215 | 650 | _("Print out the values contained in a Fortran COMMON block.")); |
c906108c | 651 | if (xdb_commands) |
c5aa993b | 652 | add_com ("lc", class_info, info_common_command, |
1bedd215 | 653 | _("Print out the values contained in a Fortran COMMON block.")); |
c906108c | 654 | } |