Commit | Line | Data |
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c906108c | 1 | /* Fortran language support routines for GDB, the GNU debugger. |
ce27fb25 | 2 | |
6aba47ca | 3 | Copyright (C) 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002, 2003, |
9b254dd1 | 4 | 2004, 2005, 2007, 2008 Free Software Foundation, Inc. |
ce27fb25 | 5 | |
c906108c SS |
6 | Contributed by Motorola. Adapted from the C parser by Farooq Butt |
7 | (fmbutt@engage.sps.mot.com). | |
8 | ||
c5aa993b | 9 | This file is part of GDB. |
c906108c | 10 | |
c5aa993b JM |
11 | This program is free software; you can redistribute it and/or modify |
12 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 13 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 14 | (at your option) any later version. |
c906108c | 15 | |
c5aa993b JM |
16 | This program is distributed in the hope that it will be useful, |
17 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | GNU General Public License for more details. | |
c906108c | 20 | |
c5aa993b | 21 | You should have received a copy of the GNU General Public License |
a9762ec7 | 22 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
23 | |
24 | #include "defs.h" | |
25 | #include "gdb_string.h" | |
26 | #include "symtab.h" | |
27 | #include "gdbtypes.h" | |
28 | #include "expression.h" | |
29 | #include "parser-defs.h" | |
30 | #include "language.h" | |
31 | #include "f-lang.h" | |
745b8ca0 | 32 | #include "valprint.h" |
5f9a71c3 | 33 | #include "value.h" |
c906108c | 34 | |
c906108c SS |
35 | |
36 | /* Following is dubious stuff that had been in the xcoff reader. */ | |
37 | ||
38 | struct saved_fcn | |
c5aa993b JM |
39 | { |
40 | long line_offset; /* Line offset for function */ | |
41 | struct saved_fcn *next; | |
42 | }; | |
c906108c SS |
43 | |
44 | ||
c5aa993b JM |
45 | struct saved_bf_symnum |
46 | { | |
47 | long symnum_fcn; /* Symnum of function (i.e. .function directive) */ | |
48 | long symnum_bf; /* Symnum of .bf for this function */ | |
49 | struct saved_bf_symnum *next; | |
50 | }; | |
c906108c | 51 | |
c5aa993b JM |
52 | typedef struct saved_fcn SAVED_FUNCTION, *SAVED_FUNCTION_PTR; |
53 | typedef struct saved_bf_symnum SAVED_BF, *SAVED_BF_PTR; | |
c906108c SS |
54 | |
55 | /* Local functions */ | |
56 | ||
a14ed312 | 57 | extern void _initialize_f_language (void); |
c906108c | 58 | #if 0 |
a14ed312 KB |
59 | static void clear_function_list (void); |
60 | static long get_bf_for_fcn (long); | |
61 | static void clear_bf_list (void); | |
62 | static void patch_all_commons_by_name (char *, CORE_ADDR, int); | |
63 | static SAVED_F77_COMMON_PTR find_first_common_named (char *); | |
64 | static void add_common_entry (struct symbol *); | |
65 | static void add_common_block (char *, CORE_ADDR, int, char *); | |
66 | static SAVED_FUNCTION *allocate_saved_function_node (void); | |
67 | static SAVED_BF_PTR allocate_saved_bf_node (void); | |
68 | static COMMON_ENTRY_PTR allocate_common_entry_node (void); | |
69 | static SAVED_F77_COMMON_PTR allocate_saved_f77_common_node (void); | |
70 | static void patch_common_entries (SAVED_F77_COMMON_PTR, CORE_ADDR, int); | |
c906108c SS |
71 | #endif |
72 | ||
d9fcf2fb JM |
73 | static void f_printchar (int c, struct ui_file * stream); |
74 | static void f_emit_char (int c, struct ui_file * stream, int quoter); | |
c906108c SS |
75 | |
76 | /* Print the character C on STREAM as part of the contents of a literal | |
77 | string whose delimiter is QUOTER. Note that that format for printing | |
78 | characters and strings is language specific. | |
79 | FIXME: This is a copy of the same function from c-exp.y. It should | |
80 | be replaced with a true F77 version. */ | |
81 | ||
82 | static void | |
f86f5ca3 | 83 | f_emit_char (int c, struct ui_file *stream, int quoter) |
c906108c SS |
84 | { |
85 | c &= 0xFF; /* Avoid sign bit follies */ | |
c5aa993b | 86 | |
c906108c SS |
87 | if (PRINT_LITERAL_FORM (c)) |
88 | { | |
89 | if (c == '\\' || c == quoter) | |
90 | fputs_filtered ("\\", stream); | |
91 | fprintf_filtered (stream, "%c", c); | |
92 | } | |
93 | else | |
94 | { | |
95 | switch (c) | |
96 | { | |
97 | case '\n': | |
98 | fputs_filtered ("\\n", stream); | |
99 | break; | |
100 | case '\b': | |
101 | fputs_filtered ("\\b", stream); | |
102 | break; | |
103 | case '\t': | |
104 | fputs_filtered ("\\t", stream); | |
105 | break; | |
106 | case '\f': | |
107 | fputs_filtered ("\\f", stream); | |
108 | break; | |
109 | case '\r': | |
110 | fputs_filtered ("\\r", stream); | |
111 | break; | |
112 | case '\033': | |
113 | fputs_filtered ("\\e", stream); | |
114 | break; | |
115 | case '\007': | |
116 | fputs_filtered ("\\a", stream); | |
117 | break; | |
118 | default: | |
119 | fprintf_filtered (stream, "\\%.3o", (unsigned int) c); | |
120 | break; | |
121 | } | |
122 | } | |
123 | } | |
124 | ||
125 | /* FIXME: This is a copy of the same function from c-exp.y. It should | |
126 | be replaced with a true F77version. */ | |
127 | ||
128 | static void | |
fba45db2 | 129 | f_printchar (int c, struct ui_file *stream) |
c906108c SS |
130 | { |
131 | fputs_filtered ("'", stream); | |
132 | LA_EMIT_CHAR (c, stream, '\''); | |
133 | fputs_filtered ("'", stream); | |
134 | } | |
135 | ||
136 | /* Print the character string STRING, printing at most LENGTH characters. | |
137 | Printing stops early if the number hits print_max; repeat counts | |
138 | are printed as appropriate. Print ellipses at the end if we | |
139 | had to stop before printing LENGTH characters, or if FORCE_ELLIPSES. | |
140 | FIXME: This is a copy of the same function from c-exp.y. It should | |
141 | be replaced with a true F77 version. */ | |
142 | ||
143 | static void | |
fc1a4b47 | 144 | f_printstr (struct ui_file *stream, const gdb_byte *string, |
ce27fb25 | 145 | unsigned int length, int width, int force_ellipses) |
c906108c | 146 | { |
f86f5ca3 | 147 | unsigned int i; |
c906108c SS |
148 | unsigned int things_printed = 0; |
149 | int in_quotes = 0; | |
150 | int need_comma = 0; | |
c5aa993b | 151 | |
c906108c SS |
152 | if (length == 0) |
153 | { | |
154 | fputs_filtered ("''", gdb_stdout); | |
155 | return; | |
156 | } | |
c5aa993b | 157 | |
c906108c SS |
158 | for (i = 0; i < length && things_printed < print_max; ++i) |
159 | { | |
160 | /* Position of the character we are examining | |
c5aa993b | 161 | to see whether it is repeated. */ |
c906108c SS |
162 | unsigned int rep1; |
163 | /* Number of repetitions we have detected so far. */ | |
164 | unsigned int reps; | |
c5aa993b | 165 | |
c906108c | 166 | QUIT; |
c5aa993b | 167 | |
c906108c SS |
168 | if (need_comma) |
169 | { | |
170 | fputs_filtered (", ", stream); | |
171 | need_comma = 0; | |
172 | } | |
c5aa993b | 173 | |
c906108c SS |
174 | rep1 = i + 1; |
175 | reps = 1; | |
176 | while (rep1 < length && string[rep1] == string[i]) | |
177 | { | |
178 | ++rep1; | |
179 | ++reps; | |
180 | } | |
c5aa993b | 181 | |
c906108c SS |
182 | if (reps > repeat_count_threshold) |
183 | { | |
184 | if (in_quotes) | |
185 | { | |
186 | if (inspect_it) | |
187 | fputs_filtered ("\\', ", stream); | |
188 | else | |
189 | fputs_filtered ("', ", stream); | |
190 | in_quotes = 0; | |
191 | } | |
192 | f_printchar (string[i], stream); | |
193 | fprintf_filtered (stream, " <repeats %u times>", reps); | |
194 | i = rep1 - 1; | |
195 | things_printed += repeat_count_threshold; | |
196 | need_comma = 1; | |
197 | } | |
198 | else | |
199 | { | |
200 | if (!in_quotes) | |
201 | { | |
202 | if (inspect_it) | |
203 | fputs_filtered ("\\'", stream); | |
204 | else | |
205 | fputs_filtered ("'", stream); | |
206 | in_quotes = 1; | |
207 | } | |
208 | LA_EMIT_CHAR (string[i], stream, '"'); | |
209 | ++things_printed; | |
210 | } | |
211 | } | |
c5aa993b | 212 | |
c906108c SS |
213 | /* Terminate the quotes if necessary. */ |
214 | if (in_quotes) | |
215 | { | |
216 | if (inspect_it) | |
217 | fputs_filtered ("\\'", stream); | |
218 | else | |
219 | fputs_filtered ("'", stream); | |
220 | } | |
c5aa993b | 221 | |
c906108c SS |
222 | if (force_ellipses || i < length) |
223 | fputs_filtered ("...", stream); | |
224 | } | |
c906108c | 225 | \f |
c5aa993b | 226 | |
c906108c SS |
227 | /* Table of operators and their precedences for printing expressions. */ |
228 | ||
c5aa993b JM |
229 | static const struct op_print f_op_print_tab[] = |
230 | { | |
231 | {"+", BINOP_ADD, PREC_ADD, 0}, | |
232 | {"+", UNOP_PLUS, PREC_PREFIX, 0}, | |
233 | {"-", BINOP_SUB, PREC_ADD, 0}, | |
234 | {"-", UNOP_NEG, PREC_PREFIX, 0}, | |
235 | {"*", BINOP_MUL, PREC_MUL, 0}, | |
236 | {"/", BINOP_DIV, PREC_MUL, 0}, | |
237 | {"DIV", BINOP_INTDIV, PREC_MUL, 0}, | |
238 | {"MOD", BINOP_REM, PREC_MUL, 0}, | |
239 | {"=", BINOP_ASSIGN, PREC_ASSIGN, 1}, | |
240 | {".OR.", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0}, | |
241 | {".AND.", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0}, | |
242 | {".NOT.", UNOP_LOGICAL_NOT, PREC_PREFIX, 0}, | |
243 | {".EQ.", BINOP_EQUAL, PREC_EQUAL, 0}, | |
244 | {".NE.", BINOP_NOTEQUAL, PREC_EQUAL, 0}, | |
245 | {".LE.", BINOP_LEQ, PREC_ORDER, 0}, | |
246 | {".GE.", BINOP_GEQ, PREC_ORDER, 0}, | |
247 | {".GT.", BINOP_GTR, PREC_ORDER, 0}, | |
248 | {".LT.", BINOP_LESS, PREC_ORDER, 0}, | |
249 | {"**", UNOP_IND, PREC_PREFIX, 0}, | |
250 | {"@", BINOP_REPEAT, PREC_REPEAT, 0}, | |
251 | {NULL, 0, 0, 0} | |
c906108c SS |
252 | }; |
253 | \f | |
cad351d1 UW |
254 | enum f_primitive_types { |
255 | f_primitive_type_character, | |
256 | f_primitive_type_logical, | |
257 | f_primitive_type_logical_s1, | |
258 | f_primitive_type_logical_s2, | |
259 | f_primitive_type_integer, | |
260 | f_primitive_type_integer_s2, | |
261 | f_primitive_type_real, | |
262 | f_primitive_type_real_s8, | |
263 | f_primitive_type_real_s16, | |
264 | f_primitive_type_complex_s8, | |
265 | f_primitive_type_complex_s16, | |
266 | f_primitive_type_void, | |
267 | nr_f_primitive_types | |
c906108c SS |
268 | }; |
269 | ||
cad351d1 UW |
270 | static void |
271 | f_language_arch_info (struct gdbarch *gdbarch, | |
272 | struct language_arch_info *lai) | |
273 | { | |
54ef06c7 UW |
274 | const struct builtin_f_type *builtin = builtin_f_type (gdbarch); |
275 | ||
276 | lai->string_char_type = builtin->builtin_character; | |
cad351d1 UW |
277 | lai->primitive_type_vector |
278 | = GDBARCH_OBSTACK_CALLOC (gdbarch, nr_f_primitive_types + 1, | |
279 | struct type *); | |
280 | ||
281 | lai->primitive_type_vector [f_primitive_type_character] | |
54ef06c7 | 282 | = builtin->builtin_character; |
cad351d1 | 283 | lai->primitive_type_vector [f_primitive_type_logical] |
54ef06c7 | 284 | = builtin->builtin_logical; |
cad351d1 | 285 | lai->primitive_type_vector [f_primitive_type_logical_s1] |
54ef06c7 | 286 | = builtin->builtin_logical_s1; |
cad351d1 | 287 | lai->primitive_type_vector [f_primitive_type_logical_s2] |
54ef06c7 | 288 | = builtin->builtin_logical_s2; |
cad351d1 | 289 | lai->primitive_type_vector [f_primitive_type_real] |
54ef06c7 | 290 | = builtin->builtin_real; |
cad351d1 | 291 | lai->primitive_type_vector [f_primitive_type_real_s8] |
54ef06c7 | 292 | = builtin->builtin_real_s8; |
cad351d1 | 293 | lai->primitive_type_vector [f_primitive_type_real_s16] |
54ef06c7 | 294 | = builtin->builtin_real_s16; |
cad351d1 | 295 | lai->primitive_type_vector [f_primitive_type_complex_s8] |
54ef06c7 | 296 | = builtin->builtin_complex_s8; |
cad351d1 | 297 | lai->primitive_type_vector [f_primitive_type_complex_s16] |
54ef06c7 | 298 | = builtin->builtin_complex_s16; |
cad351d1 | 299 | lai->primitive_type_vector [f_primitive_type_void] |
54ef06c7 | 300 | = builtin->builtin_void; |
fbb06eb1 UW |
301 | |
302 | lai->bool_type_symbol = "logical"; | |
303 | lai->bool_type_default = builtin->builtin_logical_s2; | |
cad351d1 UW |
304 | } |
305 | ||
c906108c SS |
306 | /* This is declared in c-lang.h but it is silly to import that file for what |
307 | is already just a hack. */ | |
d9fcf2fb JM |
308 | extern int c_value_print (struct value *, struct ui_file *, int, |
309 | enum val_prettyprint); | |
c906108c | 310 | |
c5aa993b JM |
311 | const struct language_defn f_language_defn = |
312 | { | |
c906108c SS |
313 | "fortran", |
314 | language_fortran, | |
c906108c SS |
315 | range_check_on, |
316 | type_check_on, | |
63872f9d | 317 | case_sensitive_off, |
7ca2d3a3 | 318 | array_column_major, |
5f9769d1 | 319 | &exp_descriptor_standard, |
c906108c SS |
320 | f_parse, /* parser */ |
321 | f_error, /* parser error function */ | |
e85c3284 | 322 | null_post_parser, |
c906108c SS |
323 | f_printchar, /* Print character constant */ |
324 | f_printstr, /* function to print string constant */ | |
325 | f_emit_char, /* Function to print a single character */ | |
c5aa993b | 326 | f_print_type, /* Print a type using appropriate syntax */ |
c906108c | 327 | f_val_print, /* Print a value using appropriate syntax */ |
c5aa993b | 328 | c_value_print, /* FIXME */ |
f636b87d | 329 | NULL, /* Language specific skip_trampoline */ |
2b2d9e11 | 330 | NULL, /* name_of_this */ |
5f9a71c3 | 331 | basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */ |
b368761e | 332 | basic_lookup_transparent_type,/* lookup_transparent_type */ |
9a3d7dfd | 333 | NULL, /* Language specific symbol demangler */ |
31c27f77 | 334 | NULL, /* Language specific class_name_from_physname */ |
c906108c SS |
335 | f_op_print_tab, /* expression operators for printing */ |
336 | 0, /* arrays are first-class (not c-style) */ | |
337 | 1, /* String lower bound */ | |
6084f43a | 338 | default_word_break_characters, |
41d27058 | 339 | default_make_symbol_completion_list, |
cad351d1 | 340 | f_language_arch_info, |
e79af960 | 341 | default_print_array_index, |
41f1b697 | 342 | default_pass_by_reference, |
c906108c | 343 | LANG_MAGIC |
c5aa993b | 344 | }; |
c906108c | 345 | |
54ef06c7 UW |
346 | static void * |
347 | build_fortran_types (struct gdbarch *gdbarch) | |
c906108c | 348 | { |
54ef06c7 UW |
349 | struct builtin_f_type *builtin_f_type |
350 | = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct builtin_f_type); | |
351 | ||
352 | builtin_f_type->builtin_void = | |
c906108c SS |
353 | init_type (TYPE_CODE_VOID, 1, |
354 | 0, | |
355 | "VOID", (struct objfile *) NULL); | |
c5aa993b | 356 | |
54ef06c7 | 357 | builtin_f_type->builtin_character = |
c906108c SS |
358 | init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, |
359 | 0, | |
360 | "character", (struct objfile *) NULL); | |
c5aa993b | 361 | |
54ef06c7 | 362 | builtin_f_type->builtin_logical_s1 = |
c906108c SS |
363 | init_type (TYPE_CODE_BOOL, TARGET_CHAR_BIT / TARGET_CHAR_BIT, |
364 | TYPE_FLAG_UNSIGNED, | |
365 | "logical*1", (struct objfile *) NULL); | |
c5aa993b | 366 | |
54ef06c7 | 367 | builtin_f_type->builtin_integer_s2 = |
9a76efb6 | 368 | init_type (TYPE_CODE_INT, |
bb09620c | 369 | gdbarch_short_bit (gdbarch) / TARGET_CHAR_BIT, |
9a76efb6 | 370 | 0, "integer*2", (struct objfile *) NULL); |
c5aa993b | 371 | |
54ef06c7 | 372 | builtin_f_type->builtin_logical_s2 = |
9a76efb6 | 373 | init_type (TYPE_CODE_BOOL, |
bb09620c | 374 | gdbarch_short_bit (gdbarch) / TARGET_CHAR_BIT, |
9a76efb6 | 375 | TYPE_FLAG_UNSIGNED, "logical*2", (struct objfile *) NULL); |
c5aa993b | 376 | |
54ef06c7 | 377 | builtin_f_type->builtin_integer = |
9a76efb6 | 378 | init_type (TYPE_CODE_INT, |
bb09620c | 379 | gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT, |
9a76efb6 | 380 | 0, "integer", (struct objfile *) NULL); |
c5aa993b | 381 | |
54ef06c7 | 382 | builtin_f_type->builtin_logical = |
9a76efb6 | 383 | init_type (TYPE_CODE_BOOL, |
bb09620c | 384 | gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT, |
9a76efb6 | 385 | TYPE_FLAG_UNSIGNED, "logical*4", (struct objfile *) NULL); |
c5aa993b | 386 | |
54ef06c7 | 387 | builtin_f_type->builtin_real = |
ea06eb3d | 388 | init_type (TYPE_CODE_FLT, |
bb09620c | 389 | gdbarch_float_bit (gdbarch) / TARGET_CHAR_BIT, |
c906108c SS |
390 | 0, |
391 | "real", (struct objfile *) NULL); | |
c5aa993b | 392 | |
54ef06c7 | 393 | builtin_f_type->builtin_real_s8 = |
ea06eb3d | 394 | init_type (TYPE_CODE_FLT, |
bb09620c | 395 | gdbarch_double_bit (gdbarch) / TARGET_CHAR_BIT, |
c906108c SS |
396 | 0, |
397 | "real*8", (struct objfile *) NULL); | |
c5aa993b | 398 | |
54ef06c7 | 399 | builtin_f_type->builtin_real_s16 = |
ea06eb3d | 400 | init_type (TYPE_CODE_FLT, |
bb09620c | 401 | gdbarch_long_double_bit (gdbarch) / TARGET_CHAR_BIT, |
c906108c SS |
402 | 0, |
403 | "real*16", (struct objfile *) NULL); | |
c5aa993b | 404 | |
54ef06c7 | 405 | builtin_f_type->builtin_complex_s8 = |
ea06eb3d | 406 | init_type (TYPE_CODE_COMPLEX, |
bb09620c | 407 | 2 * gdbarch_float_bit (gdbarch) / TARGET_CHAR_BIT, |
c906108c SS |
408 | 0, |
409 | "complex*8", (struct objfile *) NULL); | |
54ef06c7 UW |
410 | TYPE_TARGET_TYPE (builtin_f_type->builtin_complex_s8) |
411 | = builtin_f_type->builtin_real; | |
c5aa993b | 412 | |
54ef06c7 | 413 | builtin_f_type->builtin_complex_s16 = |
ea06eb3d | 414 | init_type (TYPE_CODE_COMPLEX, |
bb09620c | 415 | 2 * gdbarch_double_bit (gdbarch) / TARGET_CHAR_BIT, |
c906108c SS |
416 | 0, |
417 | "complex*16", (struct objfile *) NULL); | |
54ef06c7 UW |
418 | TYPE_TARGET_TYPE (builtin_f_type->builtin_complex_s16) |
419 | = builtin_f_type->builtin_real_s8; | |
c5aa993b | 420 | |
c906108c SS |
421 | /* We have a new size == 4 double floats for the |
422 | complex*32 data type */ | |
c5aa993b | 423 | |
54ef06c7 | 424 | builtin_f_type->builtin_complex_s32 = |
ea06eb3d | 425 | init_type (TYPE_CODE_COMPLEX, |
bb09620c | 426 | 2 * gdbarch_long_double_bit (gdbarch) / TARGET_CHAR_BIT, |
c906108c SS |
427 | 0, |
428 | "complex*32", (struct objfile *) NULL); | |
54ef06c7 UW |
429 | TYPE_TARGET_TYPE (builtin_f_type->builtin_complex_s32) |
430 | = builtin_f_type->builtin_real_s16; | |
431 | ||
432 | return builtin_f_type; | |
433 | } | |
434 | ||
435 | static struct gdbarch_data *f_type_data; | |
436 | ||
437 | const struct builtin_f_type * | |
438 | builtin_f_type (struct gdbarch *gdbarch) | |
439 | { | |
440 | return gdbarch_data (gdbarch, f_type_data); | |
4e845cd3 MS |
441 | } |
442 | ||
443 | void | |
444 | _initialize_f_language (void) | |
445 | { | |
54ef06c7 | 446 | f_type_data = gdbarch_data_register_post_init (build_fortran_types); |
c906108c | 447 | |
c906108c SS |
448 | add_language (&f_language_defn); |
449 | } | |
450 | ||
451 | #if 0 | |
452 | static SAVED_BF_PTR | |
fba45db2 | 453 | allocate_saved_bf_node (void) |
c906108c SS |
454 | { |
455 | SAVED_BF_PTR new; | |
c5aa993b | 456 | |
c906108c | 457 | new = (SAVED_BF_PTR) xmalloc (sizeof (SAVED_BF)); |
c5aa993b | 458 | return (new); |
c906108c SS |
459 | } |
460 | ||
461 | static SAVED_FUNCTION * | |
fba45db2 | 462 | allocate_saved_function_node (void) |
c906108c SS |
463 | { |
464 | SAVED_FUNCTION *new; | |
c5aa993b | 465 | |
c906108c | 466 | new = (SAVED_FUNCTION *) xmalloc (sizeof (SAVED_FUNCTION)); |
c5aa993b | 467 | return (new); |
c906108c SS |
468 | } |
469 | ||
c5aa993b | 470 | static SAVED_F77_COMMON_PTR |
fba45db2 | 471 | allocate_saved_f77_common_node (void) |
c906108c SS |
472 | { |
473 | SAVED_F77_COMMON_PTR new; | |
c5aa993b | 474 | |
c906108c | 475 | new = (SAVED_F77_COMMON_PTR) xmalloc (sizeof (SAVED_F77_COMMON)); |
c5aa993b | 476 | return (new); |
c906108c SS |
477 | } |
478 | ||
c5aa993b | 479 | static COMMON_ENTRY_PTR |
fba45db2 | 480 | allocate_common_entry_node (void) |
c906108c SS |
481 | { |
482 | COMMON_ENTRY_PTR new; | |
c5aa993b | 483 | |
c906108c | 484 | new = (COMMON_ENTRY_PTR) xmalloc (sizeof (COMMON_ENTRY)); |
c5aa993b | 485 | return (new); |
c906108c SS |
486 | } |
487 | #endif | |
488 | ||
c5aa993b JM |
489 | SAVED_F77_COMMON_PTR head_common_list = NULL; /* Ptr to 1st saved COMMON */ |
490 | SAVED_F77_COMMON_PTR tail_common_list = NULL; /* Ptr to last saved COMMON */ | |
491 | SAVED_F77_COMMON_PTR current_common = NULL; /* Ptr to current COMMON */ | |
c906108c SS |
492 | |
493 | #if 0 | |
c5aa993b JM |
494 | static SAVED_BF_PTR saved_bf_list = NULL; /* Ptr to (.bf,function) |
495 | list */ | |
496 | static SAVED_BF_PTR saved_bf_list_end = NULL; /* Ptr to above list's end */ | |
497 | static SAVED_BF_PTR current_head_bf_list = NULL; /* Current head of above list | |
498 | */ | |
c906108c | 499 | |
c5aa993b JM |
500 | static SAVED_BF_PTR tmp_bf_ptr; /* Generic temporary for use |
501 | in macros */ | |
c906108c SS |
502 | |
503 | /* The following function simply enters a given common block onto | |
504 | the global common block chain */ | |
505 | ||
506 | static void | |
fba45db2 | 507 | add_common_block (char *name, CORE_ADDR offset, int secnum, char *func_stab) |
c906108c SS |
508 | { |
509 | SAVED_F77_COMMON_PTR tmp; | |
c5aa993b JM |
510 | char *c, *local_copy_func_stab; |
511 | ||
c906108c SS |
512 | /* If the COMMON block we are trying to add has a blank |
513 | name (i.e. "#BLNK_COM") then we set it to __BLANK | |
514 | because the darn "#" character makes GDB's input | |
c5aa993b JM |
515 | parser have fits. */ |
516 | ||
517 | ||
6314a349 AC |
518 | if (strcmp (name, BLANK_COMMON_NAME_ORIGINAL) == 0 |
519 | || strcmp (name, BLANK_COMMON_NAME_MF77) == 0) | |
c906108c | 520 | { |
c5aa993b | 521 | |
b8c9b27d | 522 | xfree (name); |
c5aa993b JM |
523 | name = alloca (strlen (BLANK_COMMON_NAME_LOCAL) + 1); |
524 | strcpy (name, BLANK_COMMON_NAME_LOCAL); | |
c906108c | 525 | } |
c5aa993b JM |
526 | |
527 | tmp = allocate_saved_f77_common_node (); | |
528 | ||
529 | local_copy_func_stab = xmalloc (strlen (func_stab) + 1); | |
530 | strcpy (local_copy_func_stab, func_stab); | |
531 | ||
532 | tmp->name = xmalloc (strlen (name) + 1); | |
533 | ||
c906108c | 534 | /* local_copy_func_stab is a stabstring, let us first extract the |
c5aa993b JM |
535 | function name from the stab by NULLing out the ':' character. */ |
536 | ||
537 | ||
538 | c = NULL; | |
539 | c = strchr (local_copy_func_stab, ':'); | |
540 | ||
c906108c SS |
541 | if (c) |
542 | *c = '\0'; | |
543 | else | |
8a3fe4f8 | 544 | error (_("Malformed function STAB found in add_common_block()")); |
c5aa993b JM |
545 | |
546 | ||
547 | tmp->owning_function = xmalloc (strlen (local_copy_func_stab) + 1); | |
548 | ||
549 | strcpy (tmp->owning_function, local_copy_func_stab); | |
550 | ||
551 | strcpy (tmp->name, name); | |
552 | tmp->offset = offset; | |
c906108c SS |
553 | tmp->next = NULL; |
554 | tmp->entries = NULL; | |
c5aa993b JM |
555 | tmp->secnum = secnum; |
556 | ||
c906108c | 557 | current_common = tmp; |
c5aa993b | 558 | |
c906108c SS |
559 | if (head_common_list == NULL) |
560 | { | |
561 | head_common_list = tail_common_list = tmp; | |
562 | } | |
563 | else | |
564 | { | |
c5aa993b | 565 | tail_common_list->next = tmp; |
c906108c SS |
566 | tail_common_list = tmp; |
567 | } | |
568 | } | |
569 | #endif | |
570 | ||
571 | /* The following function simply enters a given common entry onto | |
c5aa993b | 572 | the "current_common" block that has been saved away. */ |
c906108c SS |
573 | |
574 | #if 0 | |
575 | static void | |
fba45db2 | 576 | add_common_entry (struct symbol *entry_sym_ptr) |
c906108c SS |
577 | { |
578 | COMMON_ENTRY_PTR tmp; | |
c5aa993b JM |
579 | |
580 | ||
581 | ||
c906108c SS |
582 | /* The order of this list is important, since |
583 | we expect the entries to appear in decl. | |
c5aa993b JM |
584 | order when we later issue "info common" calls */ |
585 | ||
586 | tmp = allocate_common_entry_node (); | |
587 | ||
c906108c SS |
588 | tmp->next = NULL; |
589 | tmp->symbol = entry_sym_ptr; | |
c5aa993b | 590 | |
c906108c | 591 | if (current_common == NULL) |
8a3fe4f8 | 592 | error (_("Attempt to add COMMON entry with no block open!")); |
c5aa993b | 593 | else |
c906108c SS |
594 | { |
595 | if (current_common->entries == NULL) | |
596 | { | |
597 | current_common->entries = tmp; | |
c5aa993b | 598 | current_common->end_of_entries = tmp; |
c906108c SS |
599 | } |
600 | else | |
601 | { | |
c5aa993b JM |
602 | current_common->end_of_entries->next = tmp; |
603 | current_common->end_of_entries = tmp; | |
c906108c SS |
604 | } |
605 | } | |
606 | } | |
607 | #endif | |
608 | ||
c5aa993b | 609 | /* This routine finds the first encountred COMMON block named "name" */ |
c906108c SS |
610 | |
611 | #if 0 | |
612 | static SAVED_F77_COMMON_PTR | |
fba45db2 | 613 | find_first_common_named (char *name) |
c906108c | 614 | { |
c5aa993b | 615 | |
c906108c | 616 | SAVED_F77_COMMON_PTR tmp; |
c5aa993b | 617 | |
c906108c | 618 | tmp = head_common_list; |
c5aa993b | 619 | |
c906108c SS |
620 | while (tmp != NULL) |
621 | { | |
6314a349 | 622 | if (strcmp (tmp->name, name) == 0) |
c5aa993b | 623 | return (tmp); |
c906108c SS |
624 | else |
625 | tmp = tmp->next; | |
626 | } | |
c5aa993b | 627 | return (NULL); |
c906108c SS |
628 | } |
629 | #endif | |
630 | ||
631 | /* This routine finds the first encountred COMMON block named "name" | |
c5aa993b | 632 | that belongs to function funcname */ |
c906108c | 633 | |
c5aa993b | 634 | SAVED_F77_COMMON_PTR |
fba45db2 | 635 | find_common_for_function (char *name, char *funcname) |
c906108c | 636 | { |
c5aa993b | 637 | |
c906108c | 638 | SAVED_F77_COMMON_PTR tmp; |
c5aa993b | 639 | |
c906108c | 640 | tmp = head_common_list; |
c5aa993b | 641 | |
c906108c SS |
642 | while (tmp != NULL) |
643 | { | |
7ecb6532 MD |
644 | if (strcmp (tmp->name, name) == 0 |
645 | && strcmp (tmp->owning_function, funcname) == 0) | |
c5aa993b | 646 | return (tmp); |
c906108c SS |
647 | else |
648 | tmp = tmp->next; | |
649 | } | |
c5aa993b | 650 | return (NULL); |
c906108c SS |
651 | } |
652 | ||
653 | ||
654 | #if 0 | |
655 | ||
656 | /* The following function is called to patch up the offsets | |
657 | for the statics contained in the COMMON block named | |
c5aa993b | 658 | "name." */ |
c906108c SS |
659 | |
660 | static void | |
fba45db2 | 661 | patch_common_entries (SAVED_F77_COMMON_PTR blk, CORE_ADDR offset, int secnum) |
c906108c SS |
662 | { |
663 | COMMON_ENTRY_PTR entry; | |
c5aa993b JM |
664 | |
665 | blk->offset = offset; /* Keep this around for future use. */ | |
666 | ||
c906108c | 667 | entry = blk->entries; |
c5aa993b | 668 | |
c906108c SS |
669 | while (entry != NULL) |
670 | { | |
c5aa993b | 671 | SYMBOL_VALUE (entry->symbol) += offset; |
c906108c | 672 | SYMBOL_SECTION (entry->symbol) = secnum; |
c5aa993b | 673 | |
c906108c SS |
674 | entry = entry->next; |
675 | } | |
c5aa993b | 676 | blk->secnum = secnum; |
c906108c SS |
677 | } |
678 | ||
679 | /* Patch all commons named "name" that need patching.Since COMMON | |
680 | blocks occur with relative infrequency, we simply do a linear scan on | |
681 | the name. Eventually, the best way to do this will be a | |
682 | hashed-lookup. Secnum is the section number for the .bss section | |
683 | (which is where common data lives). */ | |
684 | ||
685 | static void | |
fba45db2 | 686 | patch_all_commons_by_name (char *name, CORE_ADDR offset, int secnum) |
c906108c | 687 | { |
c5aa993b | 688 | |
c906108c | 689 | SAVED_F77_COMMON_PTR tmp; |
c5aa993b | 690 | |
c906108c SS |
691 | /* For blank common blocks, change the canonical reprsentation |
692 | of a blank name */ | |
c5aa993b | 693 | |
6314a349 AC |
694 | if (strcmp (name, BLANK_COMMON_NAME_ORIGINAL) == 0 |
695 | || strcmp (name, BLANK_COMMON_NAME_MF77) == 0) | |
c906108c | 696 | { |
b8c9b27d | 697 | xfree (name); |
c5aa993b JM |
698 | name = alloca (strlen (BLANK_COMMON_NAME_LOCAL) + 1); |
699 | strcpy (name, BLANK_COMMON_NAME_LOCAL); | |
c906108c | 700 | } |
c5aa993b | 701 | |
c906108c | 702 | tmp = head_common_list; |
c5aa993b | 703 | |
c906108c SS |
704 | while (tmp != NULL) |
705 | { | |
c5aa993b | 706 | if (COMMON_NEEDS_PATCHING (tmp)) |
6314a349 | 707 | if (strcmp (tmp->name, name) == 0) |
c5aa993b JM |
708 | patch_common_entries (tmp, offset, secnum); |
709 | ||
c906108c | 710 | tmp = tmp->next; |
c5aa993b | 711 | } |
c906108c SS |
712 | } |
713 | #endif | |
714 | ||
715 | /* This macro adds the symbol-number for the start of the function | |
716 | (the symbol number of the .bf) referenced by symnum_fcn to a | |
717 | list. This list, in reality should be a FIFO queue but since | |
718 | #line pragmas sometimes cause line ranges to get messed up | |
719 | we simply create a linear list. This list can then be searched | |
720 | first by a queueing algorithm and upon failure fall back to | |
c5aa993b | 721 | a linear scan. */ |
c906108c SS |
722 | |
723 | #if 0 | |
724 | #define ADD_BF_SYMNUM(bf_sym,fcn_sym) \ | |
725 | \ | |
726 | if (saved_bf_list == NULL) \ | |
727 | { \ | |
728 | tmp_bf_ptr = allocate_saved_bf_node(); \ | |
729 | \ | |
730 | tmp_bf_ptr->symnum_bf = (bf_sym); \ | |
731 | tmp_bf_ptr->symnum_fcn = (fcn_sym); \ | |
732 | tmp_bf_ptr->next = NULL; \ | |
733 | \ | |
734 | current_head_bf_list = saved_bf_list = tmp_bf_ptr; \ | |
735 | saved_bf_list_end = tmp_bf_ptr; \ | |
736 | } \ | |
737 | else \ | |
738 | { \ | |
739 | tmp_bf_ptr = allocate_saved_bf_node(); \ | |
740 | \ | |
741 | tmp_bf_ptr->symnum_bf = (bf_sym); \ | |
742 | tmp_bf_ptr->symnum_fcn = (fcn_sym); \ | |
743 | tmp_bf_ptr->next = NULL; \ | |
744 | \ | |
745 | saved_bf_list_end->next = tmp_bf_ptr; \ | |
746 | saved_bf_list_end = tmp_bf_ptr; \ | |
c5aa993b | 747 | } |
c906108c SS |
748 | #endif |
749 | ||
c5aa993b | 750 | /* This function frees the entire (.bf,function) list */ |
c906108c SS |
751 | |
752 | #if 0 | |
c5aa993b | 753 | static void |
fba45db2 | 754 | clear_bf_list (void) |
c906108c | 755 | { |
c5aa993b | 756 | |
c906108c | 757 | SAVED_BF_PTR tmp = saved_bf_list; |
c5aa993b JM |
758 | SAVED_BF_PTR next = NULL; |
759 | ||
c906108c SS |
760 | while (tmp != NULL) |
761 | { | |
762 | next = tmp->next; | |
b8c9b27d | 763 | xfree (tmp); |
c5aa993b | 764 | tmp = next; |
c906108c SS |
765 | } |
766 | saved_bf_list = NULL; | |
767 | } | |
768 | #endif | |
769 | ||
770 | int global_remote_debug; | |
771 | ||
772 | #if 0 | |
773 | ||
774 | static long | |
fba45db2 | 775 | get_bf_for_fcn (long the_function) |
c906108c SS |
776 | { |
777 | SAVED_BF_PTR tmp; | |
778 | int nprobes = 0; | |
c5aa993b | 779 | |
c906108c SS |
780 | /* First use a simple queuing algorithm (i.e. look and see if the |
781 | item at the head of the queue is the one you want) */ | |
c5aa993b | 782 | |
c906108c | 783 | if (saved_bf_list == NULL) |
8e65ff28 | 784 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 785 | _("cannot get .bf node off empty list")); |
c5aa993b JM |
786 | |
787 | if (current_head_bf_list != NULL) | |
c906108c SS |
788 | if (current_head_bf_list->symnum_fcn == the_function) |
789 | { | |
c5aa993b | 790 | if (global_remote_debug) |
dac8068e | 791 | fprintf_unfiltered (gdb_stderr, "*"); |
c906108c | 792 | |
c5aa993b | 793 | tmp = current_head_bf_list; |
c906108c | 794 | current_head_bf_list = current_head_bf_list->next; |
c5aa993b | 795 | return (tmp->symnum_bf); |
c906108c | 796 | } |
c5aa993b | 797 | |
c906108c SS |
798 | /* If the above did not work (probably because #line directives were |
799 | used in the sourcefile and they messed up our internal tables) we now do | |
800 | the ugly linear scan */ | |
c5aa993b JM |
801 | |
802 | if (global_remote_debug) | |
dac8068e | 803 | fprintf_unfiltered (gdb_stderr, "\ndefaulting to linear scan\n"); |
c5aa993b JM |
804 | |
805 | nprobes = 0; | |
c906108c SS |
806 | tmp = saved_bf_list; |
807 | while (tmp != NULL) | |
808 | { | |
c5aa993b | 809 | nprobes++; |
c906108c | 810 | if (tmp->symnum_fcn == the_function) |
c5aa993b | 811 | { |
c906108c | 812 | if (global_remote_debug) |
dac8068e | 813 | fprintf_unfiltered (gdb_stderr, "Found in %d probes\n", nprobes); |
c906108c | 814 | current_head_bf_list = tmp->next; |
c5aa993b JM |
815 | return (tmp->symnum_bf); |
816 | } | |
817 | tmp = tmp->next; | |
c906108c | 818 | } |
c5aa993b JM |
819 | |
820 | return (-1); | |
c906108c SS |
821 | } |
822 | ||
c5aa993b JM |
823 | static SAVED_FUNCTION_PTR saved_function_list = NULL; |
824 | static SAVED_FUNCTION_PTR saved_function_list_end = NULL; | |
c906108c SS |
825 | |
826 | static void | |
fba45db2 | 827 | clear_function_list (void) |
c906108c SS |
828 | { |
829 | SAVED_FUNCTION_PTR tmp = saved_function_list; | |
c5aa993b JM |
830 | SAVED_FUNCTION_PTR next = NULL; |
831 | ||
c906108c SS |
832 | while (tmp != NULL) |
833 | { | |
834 | next = tmp->next; | |
b8c9b27d | 835 | xfree (tmp); |
c906108c SS |
836 | tmp = next; |
837 | } | |
c5aa993b | 838 | |
c906108c SS |
839 | saved_function_list = NULL; |
840 | } | |
841 | #endif |