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, |
0fb0cc75 | 4 | 2004, 2005, 2007, 2008, 2009 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 | ||
6c7a06a3 TT |
73 | static void f_printchar (int c, struct type *type, struct ui_file * stream); |
74 | static void f_emit_char (int c, struct type *type, | |
75 | struct ui_file * stream, int quoter); | |
c906108c SS |
76 | |
77 | /* Print the character C on STREAM as part of the contents of a literal | |
78 | string whose delimiter is QUOTER. Note that that format for printing | |
79 | characters and strings is language specific. | |
80 | FIXME: This is a copy of the same function from c-exp.y. It should | |
81 | be replaced with a true F77 version. */ | |
82 | ||
83 | static void | |
6c7a06a3 | 84 | f_emit_char (int c, struct type *type, struct ui_file *stream, int quoter) |
c906108c SS |
85 | { |
86 | c &= 0xFF; /* Avoid sign bit follies */ | |
c5aa993b | 87 | |
c906108c SS |
88 | if (PRINT_LITERAL_FORM (c)) |
89 | { | |
90 | if (c == '\\' || c == quoter) | |
91 | fputs_filtered ("\\", stream); | |
92 | fprintf_filtered (stream, "%c", c); | |
93 | } | |
94 | else | |
95 | { | |
96 | switch (c) | |
97 | { | |
98 | case '\n': | |
99 | fputs_filtered ("\\n", stream); | |
100 | break; | |
101 | case '\b': | |
102 | fputs_filtered ("\\b", stream); | |
103 | break; | |
104 | case '\t': | |
105 | fputs_filtered ("\\t", stream); | |
106 | break; | |
107 | case '\f': | |
108 | fputs_filtered ("\\f", stream); | |
109 | break; | |
110 | case '\r': | |
111 | fputs_filtered ("\\r", stream); | |
112 | break; | |
113 | case '\033': | |
114 | fputs_filtered ("\\e", stream); | |
115 | break; | |
116 | case '\007': | |
117 | fputs_filtered ("\\a", stream); | |
118 | break; | |
119 | default: | |
120 | fprintf_filtered (stream, "\\%.3o", (unsigned int) c); | |
121 | break; | |
122 | } | |
123 | } | |
124 | } | |
125 | ||
126 | /* FIXME: This is a copy of the same function from c-exp.y. It should | |
127 | be replaced with a true F77version. */ | |
128 | ||
129 | static void | |
6c7a06a3 | 130 | f_printchar (int c, struct type *type, struct ui_file *stream) |
c906108c SS |
131 | { |
132 | fputs_filtered ("'", stream); | |
6c7a06a3 | 133 | LA_EMIT_CHAR (c, type, stream, '\''); |
c906108c SS |
134 | fputs_filtered ("'", stream); |
135 | } | |
136 | ||
137 | /* Print the character string STRING, printing at most LENGTH characters. | |
138 | Printing stops early if the number hits print_max; repeat counts | |
139 | are printed as appropriate. Print ellipses at the end if we | |
140 | had to stop before printing LENGTH characters, or if FORCE_ELLIPSES. | |
141 | FIXME: This is a copy of the same function from c-exp.y. It should | |
142 | be replaced with a true F77 version. */ | |
143 | ||
144 | static void | |
6c7a06a3 TT |
145 | f_printstr (struct ui_file *stream, struct type *type, const gdb_byte *string, |
146 | unsigned int length, int force_ellipses, | |
79a45b7d | 147 | const struct value_print_options *options) |
c906108c | 148 | { |
f86f5ca3 | 149 | unsigned int i; |
c906108c SS |
150 | unsigned int things_printed = 0; |
151 | int in_quotes = 0; | |
152 | int need_comma = 0; | |
6c7a06a3 | 153 | int width = TYPE_LENGTH (type); |
c5aa993b | 154 | |
c906108c SS |
155 | if (length == 0) |
156 | { | |
157 | fputs_filtered ("''", gdb_stdout); | |
158 | return; | |
159 | } | |
c5aa993b | 160 | |
79a45b7d | 161 | for (i = 0; i < length && things_printed < options->print_max; ++i) |
c906108c SS |
162 | { |
163 | /* Position of the character we are examining | |
c5aa993b | 164 | to see whether it is repeated. */ |
c906108c SS |
165 | unsigned int rep1; |
166 | /* Number of repetitions we have detected so far. */ | |
167 | unsigned int reps; | |
c5aa993b | 168 | |
c906108c | 169 | QUIT; |
c5aa993b | 170 | |
c906108c SS |
171 | if (need_comma) |
172 | { | |
173 | fputs_filtered (", ", stream); | |
174 | need_comma = 0; | |
175 | } | |
c5aa993b | 176 | |
c906108c SS |
177 | rep1 = i + 1; |
178 | reps = 1; | |
179 | while (rep1 < length && string[rep1] == string[i]) | |
180 | { | |
181 | ++rep1; | |
182 | ++reps; | |
183 | } | |
c5aa993b | 184 | |
79a45b7d | 185 | if (reps > options->repeat_count_threshold) |
c906108c SS |
186 | { |
187 | if (in_quotes) | |
188 | { | |
79a45b7d | 189 | if (options->inspect_it) |
c906108c SS |
190 | fputs_filtered ("\\', ", stream); |
191 | else | |
192 | fputs_filtered ("', ", stream); | |
193 | in_quotes = 0; | |
194 | } | |
6c7a06a3 | 195 | f_printchar (string[i], type, stream); |
c906108c SS |
196 | fprintf_filtered (stream, " <repeats %u times>", reps); |
197 | i = rep1 - 1; | |
79a45b7d | 198 | things_printed += options->repeat_count_threshold; |
c906108c SS |
199 | need_comma = 1; |
200 | } | |
201 | else | |
202 | { | |
203 | if (!in_quotes) | |
204 | { | |
79a45b7d | 205 | if (options->inspect_it) |
c906108c SS |
206 | fputs_filtered ("\\'", stream); |
207 | else | |
208 | fputs_filtered ("'", stream); | |
209 | in_quotes = 1; | |
210 | } | |
6c7a06a3 | 211 | LA_EMIT_CHAR (string[i], type, stream, '"'); |
c906108c SS |
212 | ++things_printed; |
213 | } | |
214 | } | |
c5aa993b | 215 | |
c906108c SS |
216 | /* Terminate the quotes if necessary. */ |
217 | if (in_quotes) | |
218 | { | |
79a45b7d | 219 | if (options->inspect_it) |
c906108c SS |
220 | fputs_filtered ("\\'", stream); |
221 | else | |
222 | fputs_filtered ("'", stream); | |
223 | } | |
c5aa993b | 224 | |
c906108c SS |
225 | if (force_ellipses || i < length) |
226 | fputs_filtered ("...", stream); | |
227 | } | |
c906108c | 228 | \f |
c5aa993b | 229 | |
c906108c SS |
230 | /* Table of operators and their precedences for printing expressions. */ |
231 | ||
c5aa993b JM |
232 | static const struct op_print f_op_print_tab[] = |
233 | { | |
234 | {"+", BINOP_ADD, PREC_ADD, 0}, | |
235 | {"+", UNOP_PLUS, PREC_PREFIX, 0}, | |
236 | {"-", BINOP_SUB, PREC_ADD, 0}, | |
237 | {"-", UNOP_NEG, PREC_PREFIX, 0}, | |
238 | {"*", BINOP_MUL, PREC_MUL, 0}, | |
239 | {"/", BINOP_DIV, PREC_MUL, 0}, | |
240 | {"DIV", BINOP_INTDIV, PREC_MUL, 0}, | |
241 | {"MOD", BINOP_REM, PREC_MUL, 0}, | |
242 | {"=", BINOP_ASSIGN, PREC_ASSIGN, 1}, | |
243 | {".OR.", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0}, | |
244 | {".AND.", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0}, | |
245 | {".NOT.", UNOP_LOGICAL_NOT, PREC_PREFIX, 0}, | |
246 | {".EQ.", BINOP_EQUAL, PREC_EQUAL, 0}, | |
247 | {".NE.", BINOP_NOTEQUAL, PREC_EQUAL, 0}, | |
248 | {".LE.", BINOP_LEQ, PREC_ORDER, 0}, | |
249 | {".GE.", BINOP_GEQ, PREC_ORDER, 0}, | |
250 | {".GT.", BINOP_GTR, PREC_ORDER, 0}, | |
251 | {".LT.", BINOP_LESS, PREC_ORDER, 0}, | |
252 | {"**", UNOP_IND, PREC_PREFIX, 0}, | |
253 | {"@", BINOP_REPEAT, PREC_REPEAT, 0}, | |
254 | {NULL, 0, 0, 0} | |
c906108c SS |
255 | }; |
256 | \f | |
cad351d1 UW |
257 | enum f_primitive_types { |
258 | f_primitive_type_character, | |
259 | f_primitive_type_logical, | |
260 | f_primitive_type_logical_s1, | |
261 | f_primitive_type_logical_s2, | |
262 | f_primitive_type_integer, | |
263 | f_primitive_type_integer_s2, | |
264 | f_primitive_type_real, | |
265 | f_primitive_type_real_s8, | |
266 | f_primitive_type_real_s16, | |
267 | f_primitive_type_complex_s8, | |
268 | f_primitive_type_complex_s16, | |
269 | f_primitive_type_void, | |
270 | nr_f_primitive_types | |
c906108c SS |
271 | }; |
272 | ||
cad351d1 UW |
273 | static void |
274 | f_language_arch_info (struct gdbarch *gdbarch, | |
275 | struct language_arch_info *lai) | |
276 | { | |
54ef06c7 UW |
277 | const struct builtin_f_type *builtin = builtin_f_type (gdbarch); |
278 | ||
279 | lai->string_char_type = builtin->builtin_character; | |
cad351d1 UW |
280 | lai->primitive_type_vector |
281 | = GDBARCH_OBSTACK_CALLOC (gdbarch, nr_f_primitive_types + 1, | |
282 | struct type *); | |
283 | ||
284 | lai->primitive_type_vector [f_primitive_type_character] | |
54ef06c7 | 285 | = builtin->builtin_character; |
cad351d1 | 286 | lai->primitive_type_vector [f_primitive_type_logical] |
54ef06c7 | 287 | = builtin->builtin_logical; |
cad351d1 | 288 | lai->primitive_type_vector [f_primitive_type_logical_s1] |
54ef06c7 | 289 | = builtin->builtin_logical_s1; |
cad351d1 | 290 | lai->primitive_type_vector [f_primitive_type_logical_s2] |
54ef06c7 | 291 | = builtin->builtin_logical_s2; |
cad351d1 | 292 | lai->primitive_type_vector [f_primitive_type_real] |
54ef06c7 | 293 | = builtin->builtin_real; |
cad351d1 | 294 | lai->primitive_type_vector [f_primitive_type_real_s8] |
54ef06c7 | 295 | = builtin->builtin_real_s8; |
cad351d1 | 296 | lai->primitive_type_vector [f_primitive_type_real_s16] |
54ef06c7 | 297 | = builtin->builtin_real_s16; |
cad351d1 | 298 | lai->primitive_type_vector [f_primitive_type_complex_s8] |
54ef06c7 | 299 | = builtin->builtin_complex_s8; |
cad351d1 | 300 | lai->primitive_type_vector [f_primitive_type_complex_s16] |
54ef06c7 | 301 | = builtin->builtin_complex_s16; |
cad351d1 | 302 | lai->primitive_type_vector [f_primitive_type_void] |
54ef06c7 | 303 | = builtin->builtin_void; |
fbb06eb1 UW |
304 | |
305 | lai->bool_type_symbol = "logical"; | |
306 | lai->bool_type_default = builtin->builtin_logical_s2; | |
cad351d1 UW |
307 | } |
308 | ||
c906108c SS |
309 | /* This is declared in c-lang.h but it is silly to import that file for what |
310 | is already just a hack. */ | |
79a45b7d TT |
311 | extern int c_value_print (struct value *, struct ui_file *, |
312 | const struct value_print_options *); | |
c906108c | 313 | |
c5aa993b JM |
314 | const struct language_defn f_language_defn = |
315 | { | |
c906108c SS |
316 | "fortran", |
317 | language_fortran, | |
c906108c SS |
318 | range_check_on, |
319 | type_check_on, | |
63872f9d | 320 | case_sensitive_off, |
7ca2d3a3 | 321 | array_column_major, |
9a044a89 | 322 | macro_expansion_no, |
5f9769d1 | 323 | &exp_descriptor_standard, |
c906108c SS |
324 | f_parse, /* parser */ |
325 | f_error, /* parser error function */ | |
e85c3284 | 326 | null_post_parser, |
c906108c SS |
327 | f_printchar, /* Print character constant */ |
328 | f_printstr, /* function to print string constant */ | |
329 | f_emit_char, /* Function to print a single character */ | |
c5aa993b | 330 | f_print_type, /* Print a type using appropriate syntax */ |
5c6ce71d | 331 | default_print_typedef, /* Print a typedef using appropriate syntax */ |
c906108c | 332 | f_val_print, /* Print a value using appropriate syntax */ |
c5aa993b | 333 | c_value_print, /* FIXME */ |
f636b87d | 334 | NULL, /* Language specific skip_trampoline */ |
2b2d9e11 | 335 | NULL, /* name_of_this */ |
5f9a71c3 | 336 | basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */ |
b368761e | 337 | basic_lookup_transparent_type,/* lookup_transparent_type */ |
9a3d7dfd | 338 | NULL, /* Language specific symbol demangler */ |
31c27f77 | 339 | NULL, /* Language specific class_name_from_physname */ |
c906108c SS |
340 | f_op_print_tab, /* expression operators for printing */ |
341 | 0, /* arrays are first-class (not c-style) */ | |
342 | 1, /* String lower bound */ | |
6084f43a | 343 | default_word_break_characters, |
41d27058 | 344 | default_make_symbol_completion_list, |
cad351d1 | 345 | f_language_arch_info, |
e79af960 | 346 | default_print_array_index, |
41f1b697 | 347 | default_pass_by_reference, |
ae6a3a4c | 348 | default_get_string, |
c906108c | 349 | LANG_MAGIC |
c5aa993b | 350 | }; |
c906108c | 351 | |
54ef06c7 UW |
352 | static void * |
353 | build_fortran_types (struct gdbarch *gdbarch) | |
c906108c | 354 | { |
54ef06c7 UW |
355 | struct builtin_f_type *builtin_f_type |
356 | = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct builtin_f_type); | |
357 | ||
358 | builtin_f_type->builtin_void = | |
c906108c SS |
359 | init_type (TYPE_CODE_VOID, 1, |
360 | 0, | |
361 | "VOID", (struct objfile *) NULL); | |
c5aa993b | 362 | |
54ef06c7 | 363 | builtin_f_type->builtin_character = |
c906108c SS |
364 | init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, |
365 | 0, | |
366 | "character", (struct objfile *) NULL); | |
c5aa993b | 367 | |
54ef06c7 | 368 | builtin_f_type->builtin_logical_s1 = |
c906108c SS |
369 | init_type (TYPE_CODE_BOOL, TARGET_CHAR_BIT / TARGET_CHAR_BIT, |
370 | TYPE_FLAG_UNSIGNED, | |
371 | "logical*1", (struct objfile *) NULL); | |
c5aa993b | 372 | |
54ef06c7 | 373 | builtin_f_type->builtin_integer_s2 = |
9a76efb6 | 374 | init_type (TYPE_CODE_INT, |
bb09620c | 375 | gdbarch_short_bit (gdbarch) / TARGET_CHAR_BIT, |
9a76efb6 | 376 | 0, "integer*2", (struct objfile *) NULL); |
c5aa993b | 377 | |
54ef06c7 | 378 | builtin_f_type->builtin_logical_s2 = |
9a76efb6 | 379 | init_type (TYPE_CODE_BOOL, |
bb09620c | 380 | gdbarch_short_bit (gdbarch) / TARGET_CHAR_BIT, |
9a76efb6 | 381 | TYPE_FLAG_UNSIGNED, "logical*2", (struct objfile *) NULL); |
c5aa993b | 382 | |
54ef06c7 | 383 | builtin_f_type->builtin_integer = |
9a76efb6 | 384 | init_type (TYPE_CODE_INT, |
bb09620c | 385 | gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT, |
9a76efb6 | 386 | 0, "integer", (struct objfile *) NULL); |
c5aa993b | 387 | |
54ef06c7 | 388 | builtin_f_type->builtin_logical = |
9a76efb6 | 389 | init_type (TYPE_CODE_BOOL, |
bb09620c | 390 | gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT, |
9a76efb6 | 391 | TYPE_FLAG_UNSIGNED, "logical*4", (struct objfile *) NULL); |
c5aa993b | 392 | |
54ef06c7 | 393 | builtin_f_type->builtin_real = |
ea06eb3d | 394 | init_type (TYPE_CODE_FLT, |
bb09620c | 395 | gdbarch_float_bit (gdbarch) / TARGET_CHAR_BIT, |
c906108c SS |
396 | 0, |
397 | "real", (struct objfile *) NULL); | |
c5aa993b | 398 | |
54ef06c7 | 399 | builtin_f_type->builtin_real_s8 = |
ea06eb3d | 400 | init_type (TYPE_CODE_FLT, |
bb09620c | 401 | gdbarch_double_bit (gdbarch) / TARGET_CHAR_BIT, |
c906108c SS |
402 | 0, |
403 | "real*8", (struct objfile *) NULL); | |
c5aa993b | 404 | |
54ef06c7 | 405 | builtin_f_type->builtin_real_s16 = |
ea06eb3d | 406 | init_type (TYPE_CODE_FLT, |
bb09620c | 407 | gdbarch_long_double_bit (gdbarch) / TARGET_CHAR_BIT, |
c906108c SS |
408 | 0, |
409 | "real*16", (struct objfile *) NULL); | |
c5aa993b | 410 | |
54ef06c7 | 411 | builtin_f_type->builtin_complex_s8 = |
ea06eb3d | 412 | init_type (TYPE_CODE_COMPLEX, |
bb09620c | 413 | 2 * gdbarch_float_bit (gdbarch) / TARGET_CHAR_BIT, |
c906108c SS |
414 | 0, |
415 | "complex*8", (struct objfile *) NULL); | |
54ef06c7 UW |
416 | TYPE_TARGET_TYPE (builtin_f_type->builtin_complex_s8) |
417 | = builtin_f_type->builtin_real; | |
c5aa993b | 418 | |
54ef06c7 | 419 | builtin_f_type->builtin_complex_s16 = |
ea06eb3d | 420 | init_type (TYPE_CODE_COMPLEX, |
bb09620c | 421 | 2 * gdbarch_double_bit (gdbarch) / TARGET_CHAR_BIT, |
c906108c SS |
422 | 0, |
423 | "complex*16", (struct objfile *) NULL); | |
54ef06c7 UW |
424 | TYPE_TARGET_TYPE (builtin_f_type->builtin_complex_s16) |
425 | = builtin_f_type->builtin_real_s8; | |
c5aa993b | 426 | |
c906108c SS |
427 | /* We have a new size == 4 double floats for the |
428 | complex*32 data type */ | |
c5aa993b | 429 | |
54ef06c7 | 430 | builtin_f_type->builtin_complex_s32 = |
ea06eb3d | 431 | init_type (TYPE_CODE_COMPLEX, |
bb09620c | 432 | 2 * gdbarch_long_double_bit (gdbarch) / TARGET_CHAR_BIT, |
c906108c SS |
433 | 0, |
434 | "complex*32", (struct objfile *) NULL); | |
54ef06c7 UW |
435 | TYPE_TARGET_TYPE (builtin_f_type->builtin_complex_s32) |
436 | = builtin_f_type->builtin_real_s16; | |
437 | ||
438 | return builtin_f_type; | |
439 | } | |
440 | ||
441 | static struct gdbarch_data *f_type_data; | |
442 | ||
443 | const struct builtin_f_type * | |
444 | builtin_f_type (struct gdbarch *gdbarch) | |
445 | { | |
446 | return gdbarch_data (gdbarch, f_type_data); | |
4e845cd3 MS |
447 | } |
448 | ||
449 | void | |
450 | _initialize_f_language (void) | |
451 | { | |
54ef06c7 | 452 | f_type_data = gdbarch_data_register_post_init (build_fortran_types); |
c906108c | 453 | |
c906108c SS |
454 | add_language (&f_language_defn); |
455 | } | |
456 | ||
457 | #if 0 | |
458 | static SAVED_BF_PTR | |
fba45db2 | 459 | allocate_saved_bf_node (void) |
c906108c SS |
460 | { |
461 | SAVED_BF_PTR new; | |
c5aa993b | 462 | |
c906108c | 463 | new = (SAVED_BF_PTR) xmalloc (sizeof (SAVED_BF)); |
c5aa993b | 464 | return (new); |
c906108c SS |
465 | } |
466 | ||
467 | static SAVED_FUNCTION * | |
fba45db2 | 468 | allocate_saved_function_node (void) |
c906108c SS |
469 | { |
470 | SAVED_FUNCTION *new; | |
c5aa993b | 471 | |
c906108c | 472 | new = (SAVED_FUNCTION *) xmalloc (sizeof (SAVED_FUNCTION)); |
c5aa993b | 473 | return (new); |
c906108c SS |
474 | } |
475 | ||
c5aa993b | 476 | static SAVED_F77_COMMON_PTR |
fba45db2 | 477 | allocate_saved_f77_common_node (void) |
c906108c SS |
478 | { |
479 | SAVED_F77_COMMON_PTR new; | |
c5aa993b | 480 | |
c906108c | 481 | new = (SAVED_F77_COMMON_PTR) xmalloc (sizeof (SAVED_F77_COMMON)); |
c5aa993b | 482 | return (new); |
c906108c SS |
483 | } |
484 | ||
c5aa993b | 485 | static COMMON_ENTRY_PTR |
fba45db2 | 486 | allocate_common_entry_node (void) |
c906108c SS |
487 | { |
488 | COMMON_ENTRY_PTR new; | |
c5aa993b | 489 | |
c906108c | 490 | new = (COMMON_ENTRY_PTR) xmalloc (sizeof (COMMON_ENTRY)); |
c5aa993b | 491 | return (new); |
c906108c SS |
492 | } |
493 | #endif | |
494 | ||
c5aa993b JM |
495 | SAVED_F77_COMMON_PTR head_common_list = NULL; /* Ptr to 1st saved COMMON */ |
496 | SAVED_F77_COMMON_PTR tail_common_list = NULL; /* Ptr to last saved COMMON */ | |
497 | SAVED_F77_COMMON_PTR current_common = NULL; /* Ptr to current COMMON */ | |
c906108c SS |
498 | |
499 | #if 0 | |
c5aa993b JM |
500 | static SAVED_BF_PTR saved_bf_list = NULL; /* Ptr to (.bf,function) |
501 | list */ | |
502 | static SAVED_BF_PTR saved_bf_list_end = NULL; /* Ptr to above list's end */ | |
503 | static SAVED_BF_PTR current_head_bf_list = NULL; /* Current head of above list | |
504 | */ | |
c906108c | 505 | |
c5aa993b JM |
506 | static SAVED_BF_PTR tmp_bf_ptr; /* Generic temporary for use |
507 | in macros */ | |
c906108c SS |
508 | |
509 | /* The following function simply enters a given common block onto | |
510 | the global common block chain */ | |
511 | ||
512 | static void | |
fba45db2 | 513 | add_common_block (char *name, CORE_ADDR offset, int secnum, char *func_stab) |
c906108c SS |
514 | { |
515 | SAVED_F77_COMMON_PTR tmp; | |
c5aa993b JM |
516 | char *c, *local_copy_func_stab; |
517 | ||
c906108c SS |
518 | /* If the COMMON block we are trying to add has a blank |
519 | name (i.e. "#BLNK_COM") then we set it to __BLANK | |
520 | because the darn "#" character makes GDB's input | |
c5aa993b JM |
521 | parser have fits. */ |
522 | ||
523 | ||
6314a349 AC |
524 | if (strcmp (name, BLANK_COMMON_NAME_ORIGINAL) == 0 |
525 | || strcmp (name, BLANK_COMMON_NAME_MF77) == 0) | |
c906108c | 526 | { |
c5aa993b | 527 | |
b8c9b27d | 528 | xfree (name); |
c5aa993b JM |
529 | name = alloca (strlen (BLANK_COMMON_NAME_LOCAL) + 1); |
530 | strcpy (name, BLANK_COMMON_NAME_LOCAL); | |
c906108c | 531 | } |
c5aa993b JM |
532 | |
533 | tmp = allocate_saved_f77_common_node (); | |
534 | ||
535 | local_copy_func_stab = xmalloc (strlen (func_stab) + 1); | |
536 | strcpy (local_copy_func_stab, func_stab); | |
537 | ||
538 | tmp->name = xmalloc (strlen (name) + 1); | |
539 | ||
c906108c | 540 | /* local_copy_func_stab is a stabstring, let us first extract the |
c5aa993b JM |
541 | function name from the stab by NULLing out the ':' character. */ |
542 | ||
543 | ||
544 | c = NULL; | |
545 | c = strchr (local_copy_func_stab, ':'); | |
546 | ||
c906108c SS |
547 | if (c) |
548 | *c = '\0'; | |
549 | else | |
8a3fe4f8 | 550 | error (_("Malformed function STAB found in add_common_block()")); |
c5aa993b JM |
551 | |
552 | ||
553 | tmp->owning_function = xmalloc (strlen (local_copy_func_stab) + 1); | |
554 | ||
555 | strcpy (tmp->owning_function, local_copy_func_stab); | |
556 | ||
557 | strcpy (tmp->name, name); | |
558 | tmp->offset = offset; | |
c906108c SS |
559 | tmp->next = NULL; |
560 | tmp->entries = NULL; | |
c5aa993b JM |
561 | tmp->secnum = secnum; |
562 | ||
c906108c | 563 | current_common = tmp; |
c5aa993b | 564 | |
c906108c SS |
565 | if (head_common_list == NULL) |
566 | { | |
567 | head_common_list = tail_common_list = tmp; | |
568 | } | |
569 | else | |
570 | { | |
c5aa993b | 571 | tail_common_list->next = tmp; |
c906108c SS |
572 | tail_common_list = tmp; |
573 | } | |
574 | } | |
575 | #endif | |
576 | ||
577 | /* The following function simply enters a given common entry onto | |
c5aa993b | 578 | the "current_common" block that has been saved away. */ |
c906108c SS |
579 | |
580 | #if 0 | |
581 | static void | |
fba45db2 | 582 | add_common_entry (struct symbol *entry_sym_ptr) |
c906108c SS |
583 | { |
584 | COMMON_ENTRY_PTR tmp; | |
c5aa993b JM |
585 | |
586 | ||
587 | ||
c906108c SS |
588 | /* The order of this list is important, since |
589 | we expect the entries to appear in decl. | |
c5aa993b JM |
590 | order when we later issue "info common" calls */ |
591 | ||
592 | tmp = allocate_common_entry_node (); | |
593 | ||
c906108c SS |
594 | tmp->next = NULL; |
595 | tmp->symbol = entry_sym_ptr; | |
c5aa993b | 596 | |
c906108c | 597 | if (current_common == NULL) |
8a3fe4f8 | 598 | error (_("Attempt to add COMMON entry with no block open!")); |
c5aa993b | 599 | else |
c906108c SS |
600 | { |
601 | if (current_common->entries == NULL) | |
602 | { | |
603 | current_common->entries = tmp; | |
c5aa993b | 604 | current_common->end_of_entries = tmp; |
c906108c SS |
605 | } |
606 | else | |
607 | { | |
c5aa993b JM |
608 | current_common->end_of_entries->next = tmp; |
609 | current_common->end_of_entries = tmp; | |
c906108c SS |
610 | } |
611 | } | |
612 | } | |
613 | #endif | |
614 | ||
c5aa993b | 615 | /* This routine finds the first encountred COMMON block named "name" */ |
c906108c SS |
616 | |
617 | #if 0 | |
618 | static SAVED_F77_COMMON_PTR | |
fba45db2 | 619 | find_first_common_named (char *name) |
c906108c | 620 | { |
c5aa993b | 621 | |
c906108c | 622 | SAVED_F77_COMMON_PTR tmp; |
c5aa993b | 623 | |
c906108c | 624 | tmp = head_common_list; |
c5aa993b | 625 | |
c906108c SS |
626 | while (tmp != NULL) |
627 | { | |
6314a349 | 628 | if (strcmp (tmp->name, name) == 0) |
c5aa993b | 629 | return (tmp); |
c906108c SS |
630 | else |
631 | tmp = tmp->next; | |
632 | } | |
c5aa993b | 633 | return (NULL); |
c906108c SS |
634 | } |
635 | #endif | |
636 | ||
637 | /* This routine finds the first encountred COMMON block named "name" | |
c5aa993b | 638 | that belongs to function funcname */ |
c906108c | 639 | |
c5aa993b | 640 | SAVED_F77_COMMON_PTR |
fba45db2 | 641 | find_common_for_function (char *name, char *funcname) |
c906108c | 642 | { |
c5aa993b | 643 | |
c906108c | 644 | SAVED_F77_COMMON_PTR tmp; |
c5aa993b | 645 | |
c906108c | 646 | tmp = head_common_list; |
c5aa993b | 647 | |
c906108c SS |
648 | while (tmp != NULL) |
649 | { | |
7ecb6532 MD |
650 | if (strcmp (tmp->name, name) == 0 |
651 | && strcmp (tmp->owning_function, funcname) == 0) | |
c5aa993b | 652 | return (tmp); |
c906108c SS |
653 | else |
654 | tmp = tmp->next; | |
655 | } | |
c5aa993b | 656 | return (NULL); |
c906108c SS |
657 | } |
658 | ||
659 | ||
660 | #if 0 | |
661 | ||
662 | /* The following function is called to patch up the offsets | |
663 | for the statics contained in the COMMON block named | |
c5aa993b | 664 | "name." */ |
c906108c SS |
665 | |
666 | static void | |
fba45db2 | 667 | patch_common_entries (SAVED_F77_COMMON_PTR blk, CORE_ADDR offset, int secnum) |
c906108c SS |
668 | { |
669 | COMMON_ENTRY_PTR entry; | |
c5aa993b JM |
670 | |
671 | blk->offset = offset; /* Keep this around for future use. */ | |
672 | ||
c906108c | 673 | entry = blk->entries; |
c5aa993b | 674 | |
c906108c SS |
675 | while (entry != NULL) |
676 | { | |
c5aa993b | 677 | SYMBOL_VALUE (entry->symbol) += offset; |
c906108c | 678 | SYMBOL_SECTION (entry->symbol) = secnum; |
c5aa993b | 679 | |
c906108c SS |
680 | entry = entry->next; |
681 | } | |
c5aa993b | 682 | blk->secnum = secnum; |
c906108c SS |
683 | } |
684 | ||
685 | /* Patch all commons named "name" that need patching.Since COMMON | |
686 | blocks occur with relative infrequency, we simply do a linear scan on | |
687 | the name. Eventually, the best way to do this will be a | |
688 | hashed-lookup. Secnum is the section number for the .bss section | |
689 | (which is where common data lives). */ | |
690 | ||
691 | static void | |
fba45db2 | 692 | patch_all_commons_by_name (char *name, CORE_ADDR offset, int secnum) |
c906108c | 693 | { |
c5aa993b | 694 | |
c906108c | 695 | SAVED_F77_COMMON_PTR tmp; |
c5aa993b | 696 | |
c906108c SS |
697 | /* For blank common blocks, change the canonical reprsentation |
698 | of a blank name */ | |
c5aa993b | 699 | |
6314a349 AC |
700 | if (strcmp (name, BLANK_COMMON_NAME_ORIGINAL) == 0 |
701 | || strcmp (name, BLANK_COMMON_NAME_MF77) == 0) | |
c906108c | 702 | { |
b8c9b27d | 703 | xfree (name); |
c5aa993b JM |
704 | name = alloca (strlen (BLANK_COMMON_NAME_LOCAL) + 1); |
705 | strcpy (name, BLANK_COMMON_NAME_LOCAL); | |
c906108c | 706 | } |
c5aa993b | 707 | |
c906108c | 708 | tmp = head_common_list; |
c5aa993b | 709 | |
c906108c SS |
710 | while (tmp != NULL) |
711 | { | |
c5aa993b | 712 | if (COMMON_NEEDS_PATCHING (tmp)) |
6314a349 | 713 | if (strcmp (tmp->name, name) == 0) |
c5aa993b JM |
714 | patch_common_entries (tmp, offset, secnum); |
715 | ||
c906108c | 716 | tmp = tmp->next; |
c5aa993b | 717 | } |
c906108c SS |
718 | } |
719 | #endif | |
720 | ||
721 | /* This macro adds the symbol-number for the start of the function | |
722 | (the symbol number of the .bf) referenced by symnum_fcn to a | |
723 | list. This list, in reality should be a FIFO queue but since | |
724 | #line pragmas sometimes cause line ranges to get messed up | |
725 | we simply create a linear list. This list can then be searched | |
726 | first by a queueing algorithm and upon failure fall back to | |
c5aa993b | 727 | a linear scan. */ |
c906108c SS |
728 | |
729 | #if 0 | |
730 | #define ADD_BF_SYMNUM(bf_sym,fcn_sym) \ | |
731 | \ | |
732 | if (saved_bf_list == NULL) \ | |
733 | { \ | |
734 | tmp_bf_ptr = allocate_saved_bf_node(); \ | |
735 | \ | |
736 | tmp_bf_ptr->symnum_bf = (bf_sym); \ | |
737 | tmp_bf_ptr->symnum_fcn = (fcn_sym); \ | |
738 | tmp_bf_ptr->next = NULL; \ | |
739 | \ | |
740 | current_head_bf_list = saved_bf_list = tmp_bf_ptr; \ | |
741 | saved_bf_list_end = tmp_bf_ptr; \ | |
742 | } \ | |
743 | else \ | |
744 | { \ | |
745 | tmp_bf_ptr = allocate_saved_bf_node(); \ | |
746 | \ | |
747 | tmp_bf_ptr->symnum_bf = (bf_sym); \ | |
748 | tmp_bf_ptr->symnum_fcn = (fcn_sym); \ | |
749 | tmp_bf_ptr->next = NULL; \ | |
750 | \ | |
751 | saved_bf_list_end->next = tmp_bf_ptr; \ | |
752 | saved_bf_list_end = tmp_bf_ptr; \ | |
c5aa993b | 753 | } |
c906108c SS |
754 | #endif |
755 | ||
c5aa993b | 756 | /* This function frees the entire (.bf,function) list */ |
c906108c SS |
757 | |
758 | #if 0 | |
c5aa993b | 759 | static void |
fba45db2 | 760 | clear_bf_list (void) |
c906108c | 761 | { |
c5aa993b | 762 | |
c906108c | 763 | SAVED_BF_PTR tmp = saved_bf_list; |
c5aa993b JM |
764 | SAVED_BF_PTR next = NULL; |
765 | ||
c906108c SS |
766 | while (tmp != NULL) |
767 | { | |
768 | next = tmp->next; | |
b8c9b27d | 769 | xfree (tmp); |
c5aa993b | 770 | tmp = next; |
c906108c SS |
771 | } |
772 | saved_bf_list = NULL; | |
773 | } | |
774 | #endif | |
775 | ||
776 | int global_remote_debug; | |
777 | ||
778 | #if 0 | |
779 | ||
780 | static long | |
fba45db2 | 781 | get_bf_for_fcn (long the_function) |
c906108c SS |
782 | { |
783 | SAVED_BF_PTR tmp; | |
784 | int nprobes = 0; | |
c5aa993b | 785 | |
c906108c SS |
786 | /* First use a simple queuing algorithm (i.e. look and see if the |
787 | item at the head of the queue is the one you want) */ | |
c5aa993b | 788 | |
c906108c | 789 | if (saved_bf_list == NULL) |
8e65ff28 | 790 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 791 | _("cannot get .bf node off empty list")); |
c5aa993b JM |
792 | |
793 | if (current_head_bf_list != NULL) | |
c906108c SS |
794 | if (current_head_bf_list->symnum_fcn == the_function) |
795 | { | |
c5aa993b | 796 | if (global_remote_debug) |
dac8068e | 797 | fprintf_unfiltered (gdb_stderr, "*"); |
c906108c | 798 | |
c5aa993b | 799 | tmp = current_head_bf_list; |
c906108c | 800 | current_head_bf_list = current_head_bf_list->next; |
c5aa993b | 801 | return (tmp->symnum_bf); |
c906108c | 802 | } |
c5aa993b | 803 | |
c906108c SS |
804 | /* If the above did not work (probably because #line directives were |
805 | used in the sourcefile and they messed up our internal tables) we now do | |
806 | the ugly linear scan */ | |
c5aa993b JM |
807 | |
808 | if (global_remote_debug) | |
dac8068e | 809 | fprintf_unfiltered (gdb_stderr, "\ndefaulting to linear scan\n"); |
c5aa993b JM |
810 | |
811 | nprobes = 0; | |
c906108c SS |
812 | tmp = saved_bf_list; |
813 | while (tmp != NULL) | |
814 | { | |
c5aa993b | 815 | nprobes++; |
c906108c | 816 | if (tmp->symnum_fcn == the_function) |
c5aa993b | 817 | { |
c906108c | 818 | if (global_remote_debug) |
dac8068e | 819 | fprintf_unfiltered (gdb_stderr, "Found in %d probes\n", nprobes); |
c906108c | 820 | current_head_bf_list = tmp->next; |
c5aa993b JM |
821 | return (tmp->symnum_bf); |
822 | } | |
823 | tmp = tmp->next; | |
c906108c | 824 | } |
c5aa993b JM |
825 | |
826 | return (-1); | |
c906108c SS |
827 | } |
828 | ||
c5aa993b JM |
829 | static SAVED_FUNCTION_PTR saved_function_list = NULL; |
830 | static SAVED_FUNCTION_PTR saved_function_list_end = NULL; | |
c906108c SS |
831 | |
832 | static void | |
fba45db2 | 833 | clear_function_list (void) |
c906108c SS |
834 | { |
835 | SAVED_FUNCTION_PTR tmp = saved_function_list; | |
c5aa993b JM |
836 | SAVED_FUNCTION_PTR next = NULL; |
837 | ||
c906108c SS |
838 | while (tmp != NULL) |
839 | { | |
840 | next = tmp->next; | |
b8c9b27d | 841 | xfree (tmp); |
c906108c SS |
842 | tmp = next; |
843 | } | |
c5aa993b | 844 | |
c906108c SS |
845 | saved_function_list = NULL; |
846 | } | |
847 | #endif |