1 /* Fortran language support routines for GDB, the GNU debugger.
3 Copyright (C) 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002, 2003,
4 2004, 2005, 2007 Free Software Foundation, Inc.
6 Contributed by Motorola. Adapted from the C parser by Farooq Butt
7 (fmbutt@engage.sps.mot.com).
9 This file is part of GDB.
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
13 the Free Software Foundation; either version 3 of the License, or
14 (at your option) any later version.
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.
21 You should have received a copy of the GNU General Public License
22 along with this program. If not, see <http://www.gnu.org/licenses/>. */
25 #include "gdb_string.h"
28 #include "expression.h"
29 #include "parser-defs.h"
36 /* Following is dubious stuff that had been in the xcoff reader. */
40 long line_offset; /* Line offset for function */
41 struct saved_fcn *next;
45 struct saved_bf_symnum
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;
52 typedef struct saved_fcn SAVED_FUNCTION, *SAVED_FUNCTION_PTR;
53 typedef struct saved_bf_symnum SAVED_BF, *SAVED_BF_PTR;
57 extern void _initialize_f_language (void);
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);
73 static struct type *f_create_fundamental_type (struct objfile *, int);
74 static void f_printchar (int c, struct ui_file * stream);
75 static void f_emit_char (int c, struct ui_file * stream, int quoter);
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. */
84 f_emit_char (int c, struct ui_file *stream, int quoter)
86 c &= 0xFF; /* Avoid sign bit follies */
88 if (PRINT_LITERAL_FORM (c))
90 if (c == '\\' || c == quoter)
91 fputs_filtered ("\\", stream);
92 fprintf_filtered (stream, "%c", c);
99 fputs_filtered ("\\n", stream);
102 fputs_filtered ("\\b", stream);
105 fputs_filtered ("\\t", stream);
108 fputs_filtered ("\\f", stream);
111 fputs_filtered ("\\r", stream);
114 fputs_filtered ("\\e", stream);
117 fputs_filtered ("\\a", stream);
120 fprintf_filtered (stream, "\\%.3o", (unsigned int) c);
126 /* FIXME: This is a copy of the same function from c-exp.y. It should
127 be replaced with a true F77version. */
130 f_printchar (int c, struct ui_file *stream)
132 fputs_filtered ("'", stream);
133 LA_EMIT_CHAR (c, stream, '\'');
134 fputs_filtered ("'", stream);
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. */
145 f_printstr (struct ui_file *stream, const gdb_byte *string,
146 unsigned int length, int width, int force_ellipses)
149 unsigned int things_printed = 0;
155 fputs_filtered ("''", gdb_stdout);
159 for (i = 0; i < length && things_printed < print_max; ++i)
161 /* Position of the character we are examining
162 to see whether it is repeated. */
164 /* Number of repetitions we have detected so far. */
171 fputs_filtered (", ", stream);
177 while (rep1 < length && string[rep1] == string[i])
183 if (reps > repeat_count_threshold)
188 fputs_filtered ("\\', ", stream);
190 fputs_filtered ("', ", stream);
193 f_printchar (string[i], stream);
194 fprintf_filtered (stream, " <repeats %u times>", reps);
196 things_printed += repeat_count_threshold;
204 fputs_filtered ("\\'", stream);
206 fputs_filtered ("'", stream);
209 LA_EMIT_CHAR (string[i], stream, '"');
214 /* Terminate the quotes if necessary. */
218 fputs_filtered ("\\'", stream);
220 fputs_filtered ("'", stream);
223 if (force_ellipses || i < length)
224 fputs_filtered ("...", stream);
227 /* FIXME: This is a copy of c_create_fundamental_type(), before
228 all the non-C types were stripped from it. Needs to be fixed
229 by an experienced F77 programmer. */
232 f_create_fundamental_type (struct objfile *objfile, int typeid)
234 struct type *type = NULL;
239 type = init_type (TYPE_CODE_VOID,
240 TARGET_CHAR_BIT / TARGET_CHAR_BIT,
244 type = init_type (TYPE_CODE_BOOL,
245 TARGET_CHAR_BIT / TARGET_CHAR_BIT,
246 TYPE_FLAG_UNSIGNED, "boolean", objfile);
249 type = init_type (TYPE_CODE_STRING,
250 TARGET_CHAR_BIT / TARGET_CHAR_BIT,
251 0, "string", objfile);
254 type = init_type (TYPE_CODE_INT,
255 TARGET_CHAR_BIT / TARGET_CHAR_BIT,
256 0, "character", objfile);
259 type = init_type (TYPE_CODE_INT,
260 TARGET_CHAR_BIT / TARGET_CHAR_BIT,
261 0, "integer*1", objfile);
263 case FT_UNSIGNED_CHAR:
264 type = init_type (TYPE_CODE_BOOL,
265 TARGET_CHAR_BIT / TARGET_CHAR_BIT,
266 TYPE_FLAG_UNSIGNED, "logical*1", objfile);
269 type = init_type (TYPE_CODE_INT,
270 gdbarch_short_bit (current_gdbarch) / TARGET_CHAR_BIT,
271 0, "integer*2", objfile);
273 case FT_SIGNED_SHORT:
274 type = init_type (TYPE_CODE_INT,
275 gdbarch_short_bit (current_gdbarch) / TARGET_CHAR_BIT,
276 0, "short", objfile); /* FIXME-fnf */
278 case FT_UNSIGNED_SHORT:
279 type = init_type (TYPE_CODE_BOOL,
280 gdbarch_short_bit (current_gdbarch) / TARGET_CHAR_BIT,
281 TYPE_FLAG_UNSIGNED, "logical*2", objfile);
284 type = init_type (TYPE_CODE_INT,
285 gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
286 0, "integer*4", objfile);
288 case FT_SIGNED_INTEGER:
289 type = init_type (TYPE_CODE_INT,
290 gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
291 0, "integer", objfile); /* FIXME -fnf */
293 case FT_UNSIGNED_INTEGER:
294 type = init_type (TYPE_CODE_BOOL,
295 gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
296 TYPE_FLAG_UNSIGNED, "logical*4", objfile);
298 case FT_FIXED_DECIMAL:
299 type = init_type (TYPE_CODE_INT,
300 gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
301 0, "fixed decimal", objfile);
304 type = init_type (TYPE_CODE_INT,
305 gdbarch_long_bit (current_gdbarch) / TARGET_CHAR_BIT,
309 type = init_type (TYPE_CODE_INT,
310 gdbarch_long_bit (current_gdbarch) / TARGET_CHAR_BIT,
311 0, "long", objfile); /* FIXME -fnf */
313 case FT_UNSIGNED_LONG:
314 type = init_type (TYPE_CODE_INT,
315 gdbarch_long_bit (current_gdbarch) / TARGET_CHAR_BIT,
316 TYPE_FLAG_UNSIGNED, "unsigned long", objfile);
319 type = init_type (TYPE_CODE_INT,
320 gdbarch_long_long_bit (current_gdbarch)
322 0, "long long", objfile);
324 case FT_SIGNED_LONG_LONG:
325 type = init_type (TYPE_CODE_INT,
326 gdbarch_long_long_bit (current_gdbarch)
328 0, "signed long long", objfile);
330 case FT_UNSIGNED_LONG_LONG:
331 type = init_type (TYPE_CODE_INT,
332 gdbarch_long_long_bit (current_gdbarch)
334 TYPE_FLAG_UNSIGNED, "unsigned long long", objfile);
337 type = init_type (TYPE_CODE_FLT,
338 gdbarch_float_bit (current_gdbarch) / TARGET_CHAR_BIT,
341 case FT_DBL_PREC_FLOAT:
342 type = init_type (TYPE_CODE_FLT,
343 gdbarch_double_bit (current_gdbarch) / TARGET_CHAR_BIT,
344 0, "real*8", objfile);
346 case FT_FLOAT_DECIMAL:
347 type = init_type (TYPE_CODE_FLT,
348 gdbarch_double_bit (current_gdbarch) / TARGET_CHAR_BIT,
349 0, "floating decimal", objfile);
351 case FT_EXT_PREC_FLOAT:
352 type = init_type (TYPE_CODE_FLT,
353 gdbarch_long_double_bit (current_gdbarch)
355 0, "real*16", objfile);
358 type = init_type (TYPE_CODE_COMPLEX,
359 2 * gdbarch_float_bit (current_gdbarch) / TARGET_CHAR_BIT,
360 0, "complex*8", objfile);
361 TYPE_TARGET_TYPE (type) = builtin_type_f_real;
363 case FT_DBL_PREC_COMPLEX:
364 type = init_type (TYPE_CODE_COMPLEX,
365 2 * gdbarch_double_bit (current_gdbarch)
367 0, "complex*16", objfile);
368 TYPE_TARGET_TYPE (type) = builtin_type_f_real_s8;
370 case FT_EXT_PREC_COMPLEX:
371 type = init_type (TYPE_CODE_COMPLEX,
372 2 * gdbarch_long_double_bit (current_gdbarch)
374 0, "complex*32", objfile);
375 TYPE_TARGET_TYPE (type) = builtin_type_f_real_s16;
378 /* FIXME: For now, if we are asked to produce a type not in this
379 language, create the equivalent of a C integer type with the
380 name "<?type?>". When all the dust settles from the type
381 reconstruction work, this should probably become an error. */
382 type = init_type (TYPE_CODE_INT,
383 gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
384 0, "<?type?>", objfile);
385 warning (_("internal error: no F77 fundamental type %d"), typeid);
392 /* Table of operators and their precedences for printing expressions. */
394 static const struct op_print f_op_print_tab[] =
396 {"+", BINOP_ADD, PREC_ADD, 0},
397 {"+", UNOP_PLUS, PREC_PREFIX, 0},
398 {"-", BINOP_SUB, PREC_ADD, 0},
399 {"-", UNOP_NEG, PREC_PREFIX, 0},
400 {"*", BINOP_MUL, PREC_MUL, 0},
401 {"/", BINOP_DIV, PREC_MUL, 0},
402 {"DIV", BINOP_INTDIV, PREC_MUL, 0},
403 {"MOD", BINOP_REM, PREC_MUL, 0},
404 {"=", BINOP_ASSIGN, PREC_ASSIGN, 1},
405 {".OR.", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0},
406 {".AND.", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0},
407 {".NOT.", UNOP_LOGICAL_NOT, PREC_PREFIX, 0},
408 {".EQ.", BINOP_EQUAL, PREC_EQUAL, 0},
409 {".NE.", BINOP_NOTEQUAL, PREC_EQUAL, 0},
410 {".LE.", BINOP_LEQ, PREC_ORDER, 0},
411 {".GE.", BINOP_GEQ, PREC_ORDER, 0},
412 {".GT.", BINOP_GTR, PREC_ORDER, 0},
413 {".LT.", BINOP_LESS, PREC_ORDER, 0},
414 {"**", UNOP_IND, PREC_PREFIX, 0},
415 {"@", BINOP_REPEAT, PREC_REPEAT, 0},
419 enum f_primitive_types {
420 f_primitive_type_character,
421 f_primitive_type_logical,
422 f_primitive_type_logical_s1,
423 f_primitive_type_logical_s2,
424 f_primitive_type_integer,
425 f_primitive_type_integer_s2,
426 f_primitive_type_real,
427 f_primitive_type_real_s8,
428 f_primitive_type_real_s16,
429 f_primitive_type_complex_s8,
430 f_primitive_type_complex_s16,
431 f_primitive_type_void,
436 f_language_arch_info (struct gdbarch *gdbarch,
437 struct language_arch_info *lai)
439 const struct builtin_f_type *builtin = builtin_f_type (gdbarch);
441 lai->string_char_type = builtin->builtin_character;
442 lai->primitive_type_vector
443 = GDBARCH_OBSTACK_CALLOC (gdbarch, nr_f_primitive_types + 1,
446 lai->primitive_type_vector [f_primitive_type_character]
447 = builtin->builtin_character;
448 lai->primitive_type_vector [f_primitive_type_logical]
449 = builtin->builtin_logical;
450 lai->primitive_type_vector [f_primitive_type_logical_s1]
451 = builtin->builtin_logical_s1;
452 lai->primitive_type_vector [f_primitive_type_logical_s2]
453 = builtin->builtin_logical_s2;
454 lai->primitive_type_vector [f_primitive_type_real]
455 = builtin->builtin_real;
456 lai->primitive_type_vector [f_primitive_type_real_s8]
457 = builtin->builtin_real_s8;
458 lai->primitive_type_vector [f_primitive_type_real_s16]
459 = builtin->builtin_real_s16;
460 lai->primitive_type_vector [f_primitive_type_complex_s8]
461 = builtin->builtin_complex_s8;
462 lai->primitive_type_vector [f_primitive_type_complex_s16]
463 = builtin->builtin_complex_s16;
464 lai->primitive_type_vector [f_primitive_type_void]
465 = builtin->builtin_void;
468 /* This is declared in c-lang.h but it is silly to import that file for what
469 is already just a hack. */
470 extern int c_value_print (struct value *, struct ui_file *, int,
471 enum val_prettyprint);
473 const struct language_defn f_language_defn =
481 &exp_descriptor_standard,
482 f_parse, /* parser */
483 f_error, /* parser error function */
485 f_printchar, /* Print character constant */
486 f_printstr, /* function to print string constant */
487 f_emit_char, /* Function to print a single character */
488 f_create_fundamental_type, /* Create fundamental type in this language */
489 f_print_type, /* Print a type using appropriate syntax */
490 f_val_print, /* Print a value using appropriate syntax */
491 c_value_print, /* FIXME */
492 NULL, /* Language specific skip_trampoline */
493 value_of_this, /* value_of_this */
494 basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
495 basic_lookup_transparent_type,/* lookup_transparent_type */
496 NULL, /* Language specific symbol demangler */
497 NULL, /* Language specific class_name_from_physname */
498 f_op_print_tab, /* expression operators for printing */
499 0, /* arrays are first-class (not c-style) */
500 1, /* String lower bound */
501 default_word_break_characters,
502 f_language_arch_info,
503 default_print_array_index,
504 default_pass_by_reference,
509 build_fortran_types (struct gdbarch *gdbarch)
511 struct builtin_f_type *builtin_f_type
512 = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct builtin_f_type);
514 builtin_f_type->builtin_void =
515 init_type (TYPE_CODE_VOID, 1,
517 "VOID", (struct objfile *) NULL);
519 builtin_f_type->builtin_character =
520 init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
522 "character", (struct objfile *) NULL);
524 builtin_f_type->builtin_logical_s1 =
525 init_type (TYPE_CODE_BOOL, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
527 "logical*1", (struct objfile *) NULL);
529 builtin_f_type->builtin_integer_s2 =
530 init_type (TYPE_CODE_INT,
531 gdbarch_short_bit (gdbarch) / TARGET_CHAR_BIT,
532 0, "integer*2", (struct objfile *) NULL);
534 builtin_f_type->builtin_logical_s2 =
535 init_type (TYPE_CODE_BOOL,
536 gdbarch_short_bit (gdbarch) / TARGET_CHAR_BIT,
537 TYPE_FLAG_UNSIGNED, "logical*2", (struct objfile *) NULL);
539 builtin_f_type->builtin_integer =
540 init_type (TYPE_CODE_INT,
541 gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT,
542 0, "integer", (struct objfile *) NULL);
544 builtin_f_type->builtin_logical =
545 init_type (TYPE_CODE_BOOL,
546 gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT,
547 TYPE_FLAG_UNSIGNED, "logical*4", (struct objfile *) NULL);
549 builtin_f_type->builtin_real =
550 init_type (TYPE_CODE_FLT,
551 gdbarch_float_bit (gdbarch) / TARGET_CHAR_BIT,
553 "real", (struct objfile *) NULL);
555 builtin_f_type->builtin_real_s8 =
556 init_type (TYPE_CODE_FLT,
557 gdbarch_double_bit (gdbarch) / TARGET_CHAR_BIT,
559 "real*8", (struct objfile *) NULL);
561 builtin_f_type->builtin_real_s16 =
562 init_type (TYPE_CODE_FLT,
563 gdbarch_long_double_bit (gdbarch) / TARGET_CHAR_BIT,
565 "real*16", (struct objfile *) NULL);
567 builtin_f_type->builtin_complex_s8 =
568 init_type (TYPE_CODE_COMPLEX,
569 2 * gdbarch_float_bit (gdbarch) / TARGET_CHAR_BIT,
571 "complex*8", (struct objfile *) NULL);
572 TYPE_TARGET_TYPE (builtin_f_type->builtin_complex_s8)
573 = builtin_f_type->builtin_real;
575 builtin_f_type->builtin_complex_s16 =
576 init_type (TYPE_CODE_COMPLEX,
577 2 * gdbarch_double_bit (gdbarch) / TARGET_CHAR_BIT,
579 "complex*16", (struct objfile *) NULL);
580 TYPE_TARGET_TYPE (builtin_f_type->builtin_complex_s16)
581 = builtin_f_type->builtin_real_s8;
583 /* We have a new size == 4 double floats for the
584 complex*32 data type */
586 builtin_f_type->builtin_complex_s32 =
587 init_type (TYPE_CODE_COMPLEX,
588 2 * gdbarch_long_double_bit (gdbarch) / TARGET_CHAR_BIT,
590 "complex*32", (struct objfile *) NULL);
591 TYPE_TARGET_TYPE (builtin_f_type->builtin_complex_s32)
592 = builtin_f_type->builtin_real_s16;
594 return builtin_f_type;
597 static struct gdbarch_data *f_type_data;
599 const struct builtin_f_type *
600 builtin_f_type (struct gdbarch *gdbarch)
602 return gdbarch_data (gdbarch, f_type_data);
606 _initialize_f_language (void)
608 f_type_data = gdbarch_data_register_post_init (build_fortran_types);
610 add_language (&f_language_defn);
615 allocate_saved_bf_node (void)
619 new = (SAVED_BF_PTR) xmalloc (sizeof (SAVED_BF));
623 static SAVED_FUNCTION *
624 allocate_saved_function_node (void)
628 new = (SAVED_FUNCTION *) xmalloc (sizeof (SAVED_FUNCTION));
632 static SAVED_F77_COMMON_PTR
633 allocate_saved_f77_common_node (void)
635 SAVED_F77_COMMON_PTR new;
637 new = (SAVED_F77_COMMON_PTR) xmalloc (sizeof (SAVED_F77_COMMON));
641 static COMMON_ENTRY_PTR
642 allocate_common_entry_node (void)
644 COMMON_ENTRY_PTR new;
646 new = (COMMON_ENTRY_PTR) xmalloc (sizeof (COMMON_ENTRY));
651 SAVED_F77_COMMON_PTR head_common_list = NULL; /* Ptr to 1st saved COMMON */
652 SAVED_F77_COMMON_PTR tail_common_list = NULL; /* Ptr to last saved COMMON */
653 SAVED_F77_COMMON_PTR current_common = NULL; /* Ptr to current COMMON */
656 static SAVED_BF_PTR saved_bf_list = NULL; /* Ptr to (.bf,function)
658 static SAVED_BF_PTR saved_bf_list_end = NULL; /* Ptr to above list's end */
659 static SAVED_BF_PTR current_head_bf_list = NULL; /* Current head of above list
662 static SAVED_BF_PTR tmp_bf_ptr; /* Generic temporary for use
665 /* The following function simply enters a given common block onto
666 the global common block chain */
669 add_common_block (char *name, CORE_ADDR offset, int secnum, char *func_stab)
671 SAVED_F77_COMMON_PTR tmp;
672 char *c, *local_copy_func_stab;
674 /* If the COMMON block we are trying to add has a blank
675 name (i.e. "#BLNK_COM") then we set it to __BLANK
676 because the darn "#" character makes GDB's input
680 if (strcmp (name, BLANK_COMMON_NAME_ORIGINAL) == 0
681 || strcmp (name, BLANK_COMMON_NAME_MF77) == 0)
685 name = alloca (strlen (BLANK_COMMON_NAME_LOCAL) + 1);
686 strcpy (name, BLANK_COMMON_NAME_LOCAL);
689 tmp = allocate_saved_f77_common_node ();
691 local_copy_func_stab = xmalloc (strlen (func_stab) + 1);
692 strcpy (local_copy_func_stab, func_stab);
694 tmp->name = xmalloc (strlen (name) + 1);
696 /* local_copy_func_stab is a stabstring, let us first extract the
697 function name from the stab by NULLing out the ':' character. */
701 c = strchr (local_copy_func_stab, ':');
706 error (_("Malformed function STAB found in add_common_block()"));
709 tmp->owning_function = xmalloc (strlen (local_copy_func_stab) + 1);
711 strcpy (tmp->owning_function, local_copy_func_stab);
713 strcpy (tmp->name, name);
714 tmp->offset = offset;
717 tmp->secnum = secnum;
719 current_common = tmp;
721 if (head_common_list == NULL)
723 head_common_list = tail_common_list = tmp;
727 tail_common_list->next = tmp;
728 tail_common_list = tmp;
733 /* The following function simply enters a given common entry onto
734 the "current_common" block that has been saved away. */
738 add_common_entry (struct symbol *entry_sym_ptr)
740 COMMON_ENTRY_PTR tmp;
744 /* The order of this list is important, since
745 we expect the entries to appear in decl.
746 order when we later issue "info common" calls */
748 tmp = allocate_common_entry_node ();
751 tmp->symbol = entry_sym_ptr;
753 if (current_common == NULL)
754 error (_("Attempt to add COMMON entry with no block open!"));
757 if (current_common->entries == NULL)
759 current_common->entries = tmp;
760 current_common->end_of_entries = tmp;
764 current_common->end_of_entries->next = tmp;
765 current_common->end_of_entries = tmp;
771 /* This routine finds the first encountred COMMON block named "name" */
774 static SAVED_F77_COMMON_PTR
775 find_first_common_named (char *name)
778 SAVED_F77_COMMON_PTR tmp;
780 tmp = head_common_list;
784 if (strcmp (tmp->name, name) == 0)
793 /* This routine finds the first encountred COMMON block named "name"
794 that belongs to function funcname */
797 find_common_for_function (char *name, char *funcname)
800 SAVED_F77_COMMON_PTR tmp;
802 tmp = head_common_list;
806 if (DEPRECATED_STREQ (tmp->name, name)
807 && DEPRECATED_STREQ (tmp->owning_function, funcname))
818 /* The following function is called to patch up the offsets
819 for the statics contained in the COMMON block named
823 patch_common_entries (SAVED_F77_COMMON_PTR blk, CORE_ADDR offset, int secnum)
825 COMMON_ENTRY_PTR entry;
827 blk->offset = offset; /* Keep this around for future use. */
829 entry = blk->entries;
831 while (entry != NULL)
833 SYMBOL_VALUE (entry->symbol) += offset;
834 SYMBOL_SECTION (entry->symbol) = secnum;
838 blk->secnum = secnum;
841 /* Patch all commons named "name" that need patching.Since COMMON
842 blocks occur with relative infrequency, we simply do a linear scan on
843 the name. Eventually, the best way to do this will be a
844 hashed-lookup. Secnum is the section number for the .bss section
845 (which is where common data lives). */
848 patch_all_commons_by_name (char *name, CORE_ADDR offset, int secnum)
851 SAVED_F77_COMMON_PTR tmp;
853 /* For blank common blocks, change the canonical reprsentation
856 if (strcmp (name, BLANK_COMMON_NAME_ORIGINAL) == 0
857 || strcmp (name, BLANK_COMMON_NAME_MF77) == 0)
860 name = alloca (strlen (BLANK_COMMON_NAME_LOCAL) + 1);
861 strcpy (name, BLANK_COMMON_NAME_LOCAL);
864 tmp = head_common_list;
868 if (COMMON_NEEDS_PATCHING (tmp))
869 if (strcmp (tmp->name, name) == 0)
870 patch_common_entries (tmp, offset, secnum);
877 /* This macro adds the symbol-number for the start of the function
878 (the symbol number of the .bf) referenced by symnum_fcn to a
879 list. This list, in reality should be a FIFO queue but since
880 #line pragmas sometimes cause line ranges to get messed up
881 we simply create a linear list. This list can then be searched
882 first by a queueing algorithm and upon failure fall back to
886 #define ADD_BF_SYMNUM(bf_sym,fcn_sym) \
888 if (saved_bf_list == NULL) \
890 tmp_bf_ptr = allocate_saved_bf_node(); \
892 tmp_bf_ptr->symnum_bf = (bf_sym); \
893 tmp_bf_ptr->symnum_fcn = (fcn_sym); \
894 tmp_bf_ptr->next = NULL; \
896 current_head_bf_list = saved_bf_list = tmp_bf_ptr; \
897 saved_bf_list_end = tmp_bf_ptr; \
901 tmp_bf_ptr = allocate_saved_bf_node(); \
903 tmp_bf_ptr->symnum_bf = (bf_sym); \
904 tmp_bf_ptr->symnum_fcn = (fcn_sym); \
905 tmp_bf_ptr->next = NULL; \
907 saved_bf_list_end->next = tmp_bf_ptr; \
908 saved_bf_list_end = tmp_bf_ptr; \
912 /* This function frees the entire (.bf,function) list */
919 SAVED_BF_PTR tmp = saved_bf_list;
920 SAVED_BF_PTR next = NULL;
928 saved_bf_list = NULL;
932 int global_remote_debug;
937 get_bf_for_fcn (long the_function)
942 /* First use a simple queuing algorithm (i.e. look and see if the
943 item at the head of the queue is the one you want) */
945 if (saved_bf_list == NULL)
946 internal_error (__FILE__, __LINE__,
947 _("cannot get .bf node off empty list"));
949 if (current_head_bf_list != NULL)
950 if (current_head_bf_list->symnum_fcn == the_function)
952 if (global_remote_debug)
953 fprintf_unfiltered (gdb_stderr, "*");
955 tmp = current_head_bf_list;
956 current_head_bf_list = current_head_bf_list->next;
957 return (tmp->symnum_bf);
960 /* If the above did not work (probably because #line directives were
961 used in the sourcefile and they messed up our internal tables) we now do
962 the ugly linear scan */
964 if (global_remote_debug)
965 fprintf_unfiltered (gdb_stderr, "\ndefaulting to linear scan\n");
972 if (tmp->symnum_fcn == the_function)
974 if (global_remote_debug)
975 fprintf_unfiltered (gdb_stderr, "Found in %d probes\n", nprobes);
976 current_head_bf_list = tmp->next;
977 return (tmp->symnum_bf);
985 static SAVED_FUNCTION_PTR saved_function_list = NULL;
986 static SAVED_FUNCTION_PTR saved_function_list_end = NULL;
989 clear_function_list (void)
991 SAVED_FUNCTION_PTR tmp = saved_function_list;
992 SAVED_FUNCTION_PTR next = NULL;
1001 saved_function_list = NULL;