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, |
9a044a89 | 319 | macro_expansion_no, |
5f9769d1 | 320 | &exp_descriptor_standard, |
c906108c SS |
321 | f_parse, /* parser */ |
322 | f_error, /* parser error function */ | |
e85c3284 | 323 | null_post_parser, |
c906108c SS |
324 | f_printchar, /* Print character constant */ |
325 | f_printstr, /* function to print string constant */ | |
326 | f_emit_char, /* Function to print a single character */ | |
c5aa993b | 327 | f_print_type, /* Print a type using appropriate syntax */ |
5c6ce71d | 328 | default_print_typedef, /* Print a typedef using appropriate syntax */ |
c906108c | 329 | f_val_print, /* Print a value using appropriate syntax */ |
c5aa993b | 330 | c_value_print, /* FIXME */ |
f636b87d | 331 | NULL, /* Language specific skip_trampoline */ |
2b2d9e11 | 332 | NULL, /* name_of_this */ |
5f9a71c3 | 333 | basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */ |
b368761e | 334 | basic_lookup_transparent_type,/* lookup_transparent_type */ |
9a3d7dfd | 335 | NULL, /* Language specific symbol demangler */ |
31c27f77 | 336 | NULL, /* Language specific class_name_from_physname */ |
c906108c SS |
337 | f_op_print_tab, /* expression operators for printing */ |
338 | 0, /* arrays are first-class (not c-style) */ | |
339 | 1, /* String lower bound */ | |
6084f43a | 340 | default_word_break_characters, |
41d27058 | 341 | default_make_symbol_completion_list, |
cad351d1 | 342 | f_language_arch_info, |
e79af960 | 343 | default_print_array_index, |
41f1b697 | 344 | default_pass_by_reference, |
c906108c | 345 | LANG_MAGIC |
c5aa993b | 346 | }; |
c906108c | 347 | |
54ef06c7 UW |
348 | static void * |
349 | build_fortran_types (struct gdbarch *gdbarch) | |
c906108c | 350 | { |
54ef06c7 UW |
351 | struct builtin_f_type *builtin_f_type |
352 | = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct builtin_f_type); | |
353 | ||
354 | builtin_f_type->builtin_void = | |
c906108c SS |
355 | init_type (TYPE_CODE_VOID, 1, |
356 | 0, | |
357 | "VOID", (struct objfile *) NULL); | |
c5aa993b | 358 | |
54ef06c7 | 359 | builtin_f_type->builtin_character = |
c906108c SS |
360 | init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, |
361 | 0, | |
362 | "character", (struct objfile *) NULL); | |
c5aa993b | 363 | |
54ef06c7 | 364 | builtin_f_type->builtin_logical_s1 = |
c906108c SS |
365 | init_type (TYPE_CODE_BOOL, TARGET_CHAR_BIT / TARGET_CHAR_BIT, |
366 | TYPE_FLAG_UNSIGNED, | |
367 | "logical*1", (struct objfile *) NULL); | |
c5aa993b | 368 | |
54ef06c7 | 369 | builtin_f_type->builtin_integer_s2 = |
9a76efb6 | 370 | init_type (TYPE_CODE_INT, |
bb09620c | 371 | gdbarch_short_bit (gdbarch) / TARGET_CHAR_BIT, |
9a76efb6 | 372 | 0, "integer*2", (struct objfile *) NULL); |
c5aa993b | 373 | |
54ef06c7 | 374 | builtin_f_type->builtin_logical_s2 = |
9a76efb6 | 375 | init_type (TYPE_CODE_BOOL, |
bb09620c | 376 | gdbarch_short_bit (gdbarch) / TARGET_CHAR_BIT, |
9a76efb6 | 377 | TYPE_FLAG_UNSIGNED, "logical*2", (struct objfile *) NULL); |
c5aa993b | 378 | |
54ef06c7 | 379 | builtin_f_type->builtin_integer = |
9a76efb6 | 380 | init_type (TYPE_CODE_INT, |
bb09620c | 381 | gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT, |
9a76efb6 | 382 | 0, "integer", (struct objfile *) NULL); |
c5aa993b | 383 | |
54ef06c7 | 384 | builtin_f_type->builtin_logical = |
9a76efb6 | 385 | init_type (TYPE_CODE_BOOL, |
bb09620c | 386 | gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT, |
9a76efb6 | 387 | TYPE_FLAG_UNSIGNED, "logical*4", (struct objfile *) NULL); |
c5aa993b | 388 | |
54ef06c7 | 389 | builtin_f_type->builtin_real = |
ea06eb3d | 390 | init_type (TYPE_CODE_FLT, |
bb09620c | 391 | gdbarch_float_bit (gdbarch) / TARGET_CHAR_BIT, |
c906108c SS |
392 | 0, |
393 | "real", (struct objfile *) NULL); | |
c5aa993b | 394 | |
54ef06c7 | 395 | builtin_f_type->builtin_real_s8 = |
ea06eb3d | 396 | init_type (TYPE_CODE_FLT, |
bb09620c | 397 | gdbarch_double_bit (gdbarch) / TARGET_CHAR_BIT, |
c906108c SS |
398 | 0, |
399 | "real*8", (struct objfile *) NULL); | |
c5aa993b | 400 | |
54ef06c7 | 401 | builtin_f_type->builtin_real_s16 = |
ea06eb3d | 402 | init_type (TYPE_CODE_FLT, |
bb09620c | 403 | gdbarch_long_double_bit (gdbarch) / TARGET_CHAR_BIT, |
c906108c SS |
404 | 0, |
405 | "real*16", (struct objfile *) NULL); | |
c5aa993b | 406 | |
54ef06c7 | 407 | builtin_f_type->builtin_complex_s8 = |
ea06eb3d | 408 | init_type (TYPE_CODE_COMPLEX, |
bb09620c | 409 | 2 * gdbarch_float_bit (gdbarch) / TARGET_CHAR_BIT, |
c906108c SS |
410 | 0, |
411 | "complex*8", (struct objfile *) NULL); | |
54ef06c7 UW |
412 | TYPE_TARGET_TYPE (builtin_f_type->builtin_complex_s8) |
413 | = builtin_f_type->builtin_real; | |
c5aa993b | 414 | |
54ef06c7 | 415 | builtin_f_type->builtin_complex_s16 = |
ea06eb3d | 416 | init_type (TYPE_CODE_COMPLEX, |
bb09620c | 417 | 2 * gdbarch_double_bit (gdbarch) / TARGET_CHAR_BIT, |
c906108c SS |
418 | 0, |
419 | "complex*16", (struct objfile *) NULL); | |
54ef06c7 UW |
420 | TYPE_TARGET_TYPE (builtin_f_type->builtin_complex_s16) |
421 | = builtin_f_type->builtin_real_s8; | |
c5aa993b | 422 | |
c906108c SS |
423 | /* We have a new size == 4 double floats for the |
424 | complex*32 data type */ | |
c5aa993b | 425 | |
54ef06c7 | 426 | builtin_f_type->builtin_complex_s32 = |
ea06eb3d | 427 | init_type (TYPE_CODE_COMPLEX, |
bb09620c | 428 | 2 * gdbarch_long_double_bit (gdbarch) / TARGET_CHAR_BIT, |
c906108c SS |
429 | 0, |
430 | "complex*32", (struct objfile *) NULL); | |
54ef06c7 UW |
431 | TYPE_TARGET_TYPE (builtin_f_type->builtin_complex_s32) |
432 | = builtin_f_type->builtin_real_s16; | |
433 | ||
434 | return builtin_f_type; | |
435 | } | |
436 | ||
437 | static struct gdbarch_data *f_type_data; | |
438 | ||
439 | const struct builtin_f_type * | |
440 | builtin_f_type (struct gdbarch *gdbarch) | |
441 | { | |
442 | return gdbarch_data (gdbarch, f_type_data); | |
4e845cd3 MS |
443 | } |
444 | ||
445 | void | |
446 | _initialize_f_language (void) | |
447 | { | |
54ef06c7 | 448 | f_type_data = gdbarch_data_register_post_init (build_fortran_types); |
c906108c | 449 | |
c906108c SS |
450 | add_language (&f_language_defn); |
451 | } | |
452 | ||
453 | #if 0 | |
454 | static SAVED_BF_PTR | |
fba45db2 | 455 | allocate_saved_bf_node (void) |
c906108c SS |
456 | { |
457 | SAVED_BF_PTR new; | |
c5aa993b | 458 | |
c906108c | 459 | new = (SAVED_BF_PTR) xmalloc (sizeof (SAVED_BF)); |
c5aa993b | 460 | return (new); |
c906108c SS |
461 | } |
462 | ||
463 | static SAVED_FUNCTION * | |
fba45db2 | 464 | allocate_saved_function_node (void) |
c906108c SS |
465 | { |
466 | SAVED_FUNCTION *new; | |
c5aa993b | 467 | |
c906108c | 468 | new = (SAVED_FUNCTION *) xmalloc (sizeof (SAVED_FUNCTION)); |
c5aa993b | 469 | return (new); |
c906108c SS |
470 | } |
471 | ||
c5aa993b | 472 | static SAVED_F77_COMMON_PTR |
fba45db2 | 473 | allocate_saved_f77_common_node (void) |
c906108c SS |
474 | { |
475 | SAVED_F77_COMMON_PTR new; | |
c5aa993b | 476 | |
c906108c | 477 | new = (SAVED_F77_COMMON_PTR) xmalloc (sizeof (SAVED_F77_COMMON)); |
c5aa993b | 478 | return (new); |
c906108c SS |
479 | } |
480 | ||
c5aa993b | 481 | static COMMON_ENTRY_PTR |
fba45db2 | 482 | allocate_common_entry_node (void) |
c906108c SS |
483 | { |
484 | COMMON_ENTRY_PTR new; | |
c5aa993b | 485 | |
c906108c | 486 | new = (COMMON_ENTRY_PTR) xmalloc (sizeof (COMMON_ENTRY)); |
c5aa993b | 487 | return (new); |
c906108c SS |
488 | } |
489 | #endif | |
490 | ||
c5aa993b JM |
491 | SAVED_F77_COMMON_PTR head_common_list = NULL; /* Ptr to 1st saved COMMON */ |
492 | SAVED_F77_COMMON_PTR tail_common_list = NULL; /* Ptr to last saved COMMON */ | |
493 | SAVED_F77_COMMON_PTR current_common = NULL; /* Ptr to current COMMON */ | |
c906108c SS |
494 | |
495 | #if 0 | |
c5aa993b JM |
496 | static SAVED_BF_PTR saved_bf_list = NULL; /* Ptr to (.bf,function) |
497 | list */ | |
498 | static SAVED_BF_PTR saved_bf_list_end = NULL; /* Ptr to above list's end */ | |
499 | static SAVED_BF_PTR current_head_bf_list = NULL; /* Current head of above list | |
500 | */ | |
c906108c | 501 | |
c5aa993b JM |
502 | static SAVED_BF_PTR tmp_bf_ptr; /* Generic temporary for use |
503 | in macros */ | |
c906108c SS |
504 | |
505 | /* The following function simply enters a given common block onto | |
506 | the global common block chain */ | |
507 | ||
508 | static void | |
fba45db2 | 509 | add_common_block (char *name, CORE_ADDR offset, int secnum, char *func_stab) |
c906108c SS |
510 | { |
511 | SAVED_F77_COMMON_PTR tmp; | |
c5aa993b JM |
512 | char *c, *local_copy_func_stab; |
513 | ||
c906108c SS |
514 | /* If the COMMON block we are trying to add has a blank |
515 | name (i.e. "#BLNK_COM") then we set it to __BLANK | |
516 | because the darn "#" character makes GDB's input | |
c5aa993b JM |
517 | parser have fits. */ |
518 | ||
519 | ||
6314a349 AC |
520 | if (strcmp (name, BLANK_COMMON_NAME_ORIGINAL) == 0 |
521 | || strcmp (name, BLANK_COMMON_NAME_MF77) == 0) | |
c906108c | 522 | { |
c5aa993b | 523 | |
b8c9b27d | 524 | xfree (name); |
c5aa993b JM |
525 | name = alloca (strlen (BLANK_COMMON_NAME_LOCAL) + 1); |
526 | strcpy (name, BLANK_COMMON_NAME_LOCAL); | |
c906108c | 527 | } |
c5aa993b JM |
528 | |
529 | tmp = allocate_saved_f77_common_node (); | |
530 | ||
531 | local_copy_func_stab = xmalloc (strlen (func_stab) + 1); | |
532 | strcpy (local_copy_func_stab, func_stab); | |
533 | ||
534 | tmp->name = xmalloc (strlen (name) + 1); | |
535 | ||
c906108c | 536 | /* local_copy_func_stab is a stabstring, let us first extract the |
c5aa993b JM |
537 | function name from the stab by NULLing out the ':' character. */ |
538 | ||
539 | ||
540 | c = NULL; | |
541 | c = strchr (local_copy_func_stab, ':'); | |
542 | ||
c906108c SS |
543 | if (c) |
544 | *c = '\0'; | |
545 | else | |
8a3fe4f8 | 546 | error (_("Malformed function STAB found in add_common_block()")); |
c5aa993b JM |
547 | |
548 | ||
549 | tmp->owning_function = xmalloc (strlen (local_copy_func_stab) + 1); | |
550 | ||
551 | strcpy (tmp->owning_function, local_copy_func_stab); | |
552 | ||
553 | strcpy (tmp->name, name); | |
554 | tmp->offset = offset; | |
c906108c SS |
555 | tmp->next = NULL; |
556 | tmp->entries = NULL; | |
c5aa993b JM |
557 | tmp->secnum = secnum; |
558 | ||
c906108c | 559 | current_common = tmp; |
c5aa993b | 560 | |
c906108c SS |
561 | if (head_common_list == NULL) |
562 | { | |
563 | head_common_list = tail_common_list = tmp; | |
564 | } | |
565 | else | |
566 | { | |
c5aa993b | 567 | tail_common_list->next = tmp; |
c906108c SS |
568 | tail_common_list = tmp; |
569 | } | |
570 | } | |
571 | #endif | |
572 | ||
573 | /* The following function simply enters a given common entry onto | |
c5aa993b | 574 | the "current_common" block that has been saved away. */ |
c906108c SS |
575 | |
576 | #if 0 | |
577 | static void | |
fba45db2 | 578 | add_common_entry (struct symbol *entry_sym_ptr) |
c906108c SS |
579 | { |
580 | COMMON_ENTRY_PTR tmp; | |
c5aa993b JM |
581 | |
582 | ||
583 | ||
c906108c SS |
584 | /* The order of this list is important, since |
585 | we expect the entries to appear in decl. | |
c5aa993b JM |
586 | order when we later issue "info common" calls */ |
587 | ||
588 | tmp = allocate_common_entry_node (); | |
589 | ||
c906108c SS |
590 | tmp->next = NULL; |
591 | tmp->symbol = entry_sym_ptr; | |
c5aa993b | 592 | |
c906108c | 593 | if (current_common == NULL) |
8a3fe4f8 | 594 | error (_("Attempt to add COMMON entry with no block open!")); |
c5aa993b | 595 | else |
c906108c SS |
596 | { |
597 | if (current_common->entries == NULL) | |
598 | { | |
599 | current_common->entries = tmp; | |
c5aa993b | 600 | current_common->end_of_entries = tmp; |
c906108c SS |
601 | } |
602 | else | |
603 | { | |
c5aa993b JM |
604 | current_common->end_of_entries->next = tmp; |
605 | current_common->end_of_entries = tmp; | |
c906108c SS |
606 | } |
607 | } | |
608 | } | |
609 | #endif | |
610 | ||
c5aa993b | 611 | /* This routine finds the first encountred COMMON block named "name" */ |
c906108c SS |
612 | |
613 | #if 0 | |
614 | static SAVED_F77_COMMON_PTR | |
fba45db2 | 615 | find_first_common_named (char *name) |
c906108c | 616 | { |
c5aa993b | 617 | |
c906108c | 618 | SAVED_F77_COMMON_PTR tmp; |
c5aa993b | 619 | |
c906108c | 620 | tmp = head_common_list; |
c5aa993b | 621 | |
c906108c SS |
622 | while (tmp != NULL) |
623 | { | |
6314a349 | 624 | if (strcmp (tmp->name, name) == 0) |
c5aa993b | 625 | return (tmp); |
c906108c SS |
626 | else |
627 | tmp = tmp->next; | |
628 | } | |
c5aa993b | 629 | return (NULL); |
c906108c SS |
630 | } |
631 | #endif | |
632 | ||
633 | /* This routine finds the first encountred COMMON block named "name" | |
c5aa993b | 634 | that belongs to function funcname */ |
c906108c | 635 | |
c5aa993b | 636 | SAVED_F77_COMMON_PTR |
fba45db2 | 637 | find_common_for_function (char *name, char *funcname) |
c906108c | 638 | { |
c5aa993b | 639 | |
c906108c | 640 | SAVED_F77_COMMON_PTR tmp; |
c5aa993b | 641 | |
c906108c | 642 | tmp = head_common_list; |
c5aa993b | 643 | |
c906108c SS |
644 | while (tmp != NULL) |
645 | { | |
7ecb6532 MD |
646 | if (strcmp (tmp->name, name) == 0 |
647 | && strcmp (tmp->owning_function, funcname) == 0) | |
c5aa993b | 648 | return (tmp); |
c906108c SS |
649 | else |
650 | tmp = tmp->next; | |
651 | } | |
c5aa993b | 652 | return (NULL); |
c906108c SS |
653 | } |
654 | ||
655 | ||
656 | #if 0 | |
657 | ||
658 | /* The following function is called to patch up the offsets | |
659 | for the statics contained in the COMMON block named | |
c5aa993b | 660 | "name." */ |
c906108c SS |
661 | |
662 | static void | |
fba45db2 | 663 | patch_common_entries (SAVED_F77_COMMON_PTR blk, CORE_ADDR offset, int secnum) |
c906108c SS |
664 | { |
665 | COMMON_ENTRY_PTR entry; | |
c5aa993b JM |
666 | |
667 | blk->offset = offset; /* Keep this around for future use. */ | |
668 | ||
c906108c | 669 | entry = blk->entries; |
c5aa993b | 670 | |
c906108c SS |
671 | while (entry != NULL) |
672 | { | |
c5aa993b | 673 | SYMBOL_VALUE (entry->symbol) += offset; |
c906108c | 674 | SYMBOL_SECTION (entry->symbol) = secnum; |
c5aa993b | 675 | |
c906108c SS |
676 | entry = entry->next; |
677 | } | |
c5aa993b | 678 | blk->secnum = secnum; |
c906108c SS |
679 | } |
680 | ||
681 | /* Patch all commons named "name" that need patching.Since COMMON | |
682 | blocks occur with relative infrequency, we simply do a linear scan on | |
683 | the name. Eventually, the best way to do this will be a | |
684 | hashed-lookup. Secnum is the section number for the .bss section | |
685 | (which is where common data lives). */ | |
686 | ||
687 | static void | |
fba45db2 | 688 | patch_all_commons_by_name (char *name, CORE_ADDR offset, int secnum) |
c906108c | 689 | { |
c5aa993b | 690 | |
c906108c | 691 | SAVED_F77_COMMON_PTR tmp; |
c5aa993b | 692 | |
c906108c SS |
693 | /* For blank common blocks, change the canonical reprsentation |
694 | of a blank name */ | |
c5aa993b | 695 | |
6314a349 AC |
696 | if (strcmp (name, BLANK_COMMON_NAME_ORIGINAL) == 0 |
697 | || strcmp (name, BLANK_COMMON_NAME_MF77) == 0) | |
c906108c | 698 | { |
b8c9b27d | 699 | xfree (name); |
c5aa993b JM |
700 | name = alloca (strlen (BLANK_COMMON_NAME_LOCAL) + 1); |
701 | strcpy (name, BLANK_COMMON_NAME_LOCAL); | |
c906108c | 702 | } |
c5aa993b | 703 | |
c906108c | 704 | tmp = head_common_list; |
c5aa993b | 705 | |
c906108c SS |
706 | while (tmp != NULL) |
707 | { | |
c5aa993b | 708 | if (COMMON_NEEDS_PATCHING (tmp)) |
6314a349 | 709 | if (strcmp (tmp->name, name) == 0) |
c5aa993b JM |
710 | patch_common_entries (tmp, offset, secnum); |
711 | ||
c906108c | 712 | tmp = tmp->next; |
c5aa993b | 713 | } |
c906108c SS |
714 | } |
715 | #endif | |
716 | ||
717 | /* This macro adds the symbol-number for the start of the function | |
718 | (the symbol number of the .bf) referenced by symnum_fcn to a | |
719 | list. This list, in reality should be a FIFO queue but since | |
720 | #line pragmas sometimes cause line ranges to get messed up | |
721 | we simply create a linear list. This list can then be searched | |
722 | first by a queueing algorithm and upon failure fall back to | |
c5aa993b | 723 | a linear scan. */ |
c906108c SS |
724 | |
725 | #if 0 | |
726 | #define ADD_BF_SYMNUM(bf_sym,fcn_sym) \ | |
727 | \ | |
728 | if (saved_bf_list == NULL) \ | |
729 | { \ | |
730 | tmp_bf_ptr = allocate_saved_bf_node(); \ | |
731 | \ | |
732 | tmp_bf_ptr->symnum_bf = (bf_sym); \ | |
733 | tmp_bf_ptr->symnum_fcn = (fcn_sym); \ | |
734 | tmp_bf_ptr->next = NULL; \ | |
735 | \ | |
736 | current_head_bf_list = saved_bf_list = tmp_bf_ptr; \ | |
737 | saved_bf_list_end = tmp_bf_ptr; \ | |
738 | } \ | |
739 | else \ | |
740 | { \ | |
741 | tmp_bf_ptr = allocate_saved_bf_node(); \ | |
742 | \ | |
743 | tmp_bf_ptr->symnum_bf = (bf_sym); \ | |
744 | tmp_bf_ptr->symnum_fcn = (fcn_sym); \ | |
745 | tmp_bf_ptr->next = NULL; \ | |
746 | \ | |
747 | saved_bf_list_end->next = tmp_bf_ptr; \ | |
748 | saved_bf_list_end = tmp_bf_ptr; \ | |
c5aa993b | 749 | } |
c906108c SS |
750 | #endif |
751 | ||
c5aa993b | 752 | /* This function frees the entire (.bf,function) list */ |
c906108c SS |
753 | |
754 | #if 0 | |
c5aa993b | 755 | static void |
fba45db2 | 756 | clear_bf_list (void) |
c906108c | 757 | { |
c5aa993b | 758 | |
c906108c | 759 | SAVED_BF_PTR tmp = saved_bf_list; |
c5aa993b JM |
760 | SAVED_BF_PTR next = NULL; |
761 | ||
c906108c SS |
762 | while (tmp != NULL) |
763 | { | |
764 | next = tmp->next; | |
b8c9b27d | 765 | xfree (tmp); |
c5aa993b | 766 | tmp = next; |
c906108c SS |
767 | } |
768 | saved_bf_list = NULL; | |
769 | } | |
770 | #endif | |
771 | ||
772 | int global_remote_debug; | |
773 | ||
774 | #if 0 | |
775 | ||
776 | static long | |
fba45db2 | 777 | get_bf_for_fcn (long the_function) |
c906108c SS |
778 | { |
779 | SAVED_BF_PTR tmp; | |
780 | int nprobes = 0; | |
c5aa993b | 781 | |
c906108c SS |
782 | /* First use a simple queuing algorithm (i.e. look and see if the |
783 | item at the head of the queue is the one you want) */ | |
c5aa993b | 784 | |
c906108c | 785 | if (saved_bf_list == NULL) |
8e65ff28 | 786 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 787 | _("cannot get .bf node off empty list")); |
c5aa993b JM |
788 | |
789 | if (current_head_bf_list != NULL) | |
c906108c SS |
790 | if (current_head_bf_list->symnum_fcn == the_function) |
791 | { | |
c5aa993b | 792 | if (global_remote_debug) |
dac8068e | 793 | fprintf_unfiltered (gdb_stderr, "*"); |
c906108c | 794 | |
c5aa993b | 795 | tmp = current_head_bf_list; |
c906108c | 796 | current_head_bf_list = current_head_bf_list->next; |
c5aa993b | 797 | return (tmp->symnum_bf); |
c906108c | 798 | } |
c5aa993b | 799 | |
c906108c SS |
800 | /* If the above did not work (probably because #line directives were |
801 | used in the sourcefile and they messed up our internal tables) we now do | |
802 | the ugly linear scan */ | |
c5aa993b JM |
803 | |
804 | if (global_remote_debug) | |
dac8068e | 805 | fprintf_unfiltered (gdb_stderr, "\ndefaulting to linear scan\n"); |
c5aa993b JM |
806 | |
807 | nprobes = 0; | |
c906108c SS |
808 | tmp = saved_bf_list; |
809 | while (tmp != NULL) | |
810 | { | |
c5aa993b | 811 | nprobes++; |
c906108c | 812 | if (tmp->symnum_fcn == the_function) |
c5aa993b | 813 | { |
c906108c | 814 | if (global_remote_debug) |
dac8068e | 815 | fprintf_unfiltered (gdb_stderr, "Found in %d probes\n", nprobes); |
c906108c | 816 | current_head_bf_list = tmp->next; |
c5aa993b JM |
817 | return (tmp->symnum_bf); |
818 | } | |
819 | tmp = tmp->next; | |
c906108c | 820 | } |
c5aa993b JM |
821 | |
822 | return (-1); | |
c906108c SS |
823 | } |
824 | ||
c5aa993b JM |
825 | static SAVED_FUNCTION_PTR saved_function_list = NULL; |
826 | static SAVED_FUNCTION_PTR saved_function_list_end = NULL; | |
c906108c SS |
827 | |
828 | static void | |
fba45db2 | 829 | clear_function_list (void) |
c906108c SS |
830 | { |
831 | SAVED_FUNCTION_PTR tmp = saved_function_list; | |
c5aa993b JM |
832 | SAVED_FUNCTION_PTR next = NULL; |
833 | ||
c906108c SS |
834 | while (tmp != NULL) |
835 | { | |
836 | next = tmp->next; | |
b8c9b27d | 837 | xfree (tmp); |
c906108c SS |
838 | tmp = next; |
839 | } | |
c5aa993b | 840 | |
c906108c SS |
841 | saved_function_list = NULL; |
842 | } | |
843 | #endif |