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 2 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, write to the Free Software
23 Foundation, Inc., 51 Franklin Street, Fifth Floor,
24 Boston, MA 02110-1301, USA. */
27 #include "gdb_string.h"
30 #include "expression.h"
31 #include "parser-defs.h"
37 /* The built-in types of F77. FIXME: integer*4 is missing, plain
38 logical is missing (builtin_type_logical is logical*4). */
40 struct type *builtin_type_f_character;
41 struct type *builtin_type_f_logical;
42 struct type *builtin_type_f_logical_s1;
43 struct type *builtin_type_f_logical_s2;
44 struct type *builtin_type_f_integer;
45 struct type *builtin_type_f_integer_s2;
46 struct type *builtin_type_f_real;
47 struct type *builtin_type_f_real_s8;
48 struct type *builtin_type_f_real_s16;
49 struct type *builtin_type_f_complex_s8;
50 struct type *builtin_type_f_complex_s16;
51 struct type *builtin_type_f_complex_s32;
52 struct type *builtin_type_f_void;
54 /* Following is dubious stuff that had been in the xcoff reader. */
58 long line_offset; /* Line offset for function */
59 struct saved_fcn *next;
63 struct saved_bf_symnum
65 long symnum_fcn; /* Symnum of function (i.e. .function directive) */
66 long symnum_bf; /* Symnum of .bf for this function */
67 struct saved_bf_symnum *next;
70 typedef struct saved_fcn SAVED_FUNCTION, *SAVED_FUNCTION_PTR;
71 typedef struct saved_bf_symnum SAVED_BF, *SAVED_BF_PTR;
75 extern void _initialize_f_language (void);
77 static void clear_function_list (void);
78 static long get_bf_for_fcn (long);
79 static void clear_bf_list (void);
80 static void patch_all_commons_by_name (char *, CORE_ADDR, int);
81 static SAVED_F77_COMMON_PTR find_first_common_named (char *);
82 static void add_common_entry (struct symbol *);
83 static void add_common_block (char *, CORE_ADDR, int, char *);
84 static SAVED_FUNCTION *allocate_saved_function_node (void);
85 static SAVED_BF_PTR allocate_saved_bf_node (void);
86 static COMMON_ENTRY_PTR allocate_common_entry_node (void);
87 static SAVED_F77_COMMON_PTR allocate_saved_f77_common_node (void);
88 static void patch_common_entries (SAVED_F77_COMMON_PTR, CORE_ADDR, int);
91 static struct type *f_create_fundamental_type (struct objfile *, int);
92 static void f_printchar (int c, struct ui_file * stream);
93 static void f_emit_char (int c, struct ui_file * stream, int quoter);
95 /* Print the character C on STREAM as part of the contents of a literal
96 string whose delimiter is QUOTER. Note that that format for printing
97 characters and strings is language specific.
98 FIXME: This is a copy of the same function from c-exp.y. It should
99 be replaced with a true F77 version. */
102 f_emit_char (int c, struct ui_file *stream, int quoter)
104 c &= 0xFF; /* Avoid sign bit follies */
106 if (PRINT_LITERAL_FORM (c))
108 if (c == '\\' || c == quoter)
109 fputs_filtered ("\\", stream);
110 fprintf_filtered (stream, "%c", c);
117 fputs_filtered ("\\n", stream);
120 fputs_filtered ("\\b", stream);
123 fputs_filtered ("\\t", stream);
126 fputs_filtered ("\\f", stream);
129 fputs_filtered ("\\r", stream);
132 fputs_filtered ("\\e", stream);
135 fputs_filtered ("\\a", stream);
138 fprintf_filtered (stream, "\\%.3o", (unsigned int) c);
144 /* FIXME: This is a copy of the same function from c-exp.y. It should
145 be replaced with a true F77version. */
148 f_printchar (int c, struct ui_file *stream)
150 fputs_filtered ("'", stream);
151 LA_EMIT_CHAR (c, stream, '\'');
152 fputs_filtered ("'", stream);
155 /* Print the character string STRING, printing at most LENGTH characters.
156 Printing stops early if the number hits print_max; repeat counts
157 are printed as appropriate. Print ellipses at the end if we
158 had to stop before printing LENGTH characters, or if FORCE_ELLIPSES.
159 FIXME: This is a copy of the same function from c-exp.y. It should
160 be replaced with a true F77 version. */
163 f_printstr (struct ui_file *stream, const gdb_byte *string,
164 unsigned int length, int width, int force_ellipses)
167 unsigned int things_printed = 0;
173 fputs_filtered ("''", gdb_stdout);
177 for (i = 0; i < length && things_printed < print_max; ++i)
179 /* Position of the character we are examining
180 to see whether it is repeated. */
182 /* Number of repetitions we have detected so far. */
189 fputs_filtered (", ", stream);
195 while (rep1 < length && string[rep1] == string[i])
201 if (reps > repeat_count_threshold)
206 fputs_filtered ("\\', ", stream);
208 fputs_filtered ("', ", stream);
211 f_printchar (string[i], stream);
212 fprintf_filtered (stream, " <repeats %u times>", reps);
214 things_printed += repeat_count_threshold;
222 fputs_filtered ("\\'", stream);
224 fputs_filtered ("'", stream);
227 LA_EMIT_CHAR (string[i], stream, '"');
232 /* Terminate the quotes if necessary. */
236 fputs_filtered ("\\'", stream);
238 fputs_filtered ("'", stream);
241 if (force_ellipses || i < length)
242 fputs_filtered ("...", stream);
245 /* FIXME: This is a copy of c_create_fundamental_type(), before
246 all the non-C types were stripped from it. Needs to be fixed
247 by an experienced F77 programmer. */
250 f_create_fundamental_type (struct objfile *objfile, int typeid)
252 struct type *type = NULL;
257 type = init_type (TYPE_CODE_VOID,
258 TARGET_CHAR_BIT / TARGET_CHAR_BIT,
262 type = init_type (TYPE_CODE_BOOL,
263 TARGET_CHAR_BIT / TARGET_CHAR_BIT,
264 TYPE_FLAG_UNSIGNED, "boolean", objfile);
267 type = init_type (TYPE_CODE_STRING,
268 TARGET_CHAR_BIT / TARGET_CHAR_BIT,
269 0, "string", objfile);
272 type = init_type (TYPE_CODE_INT,
273 TARGET_CHAR_BIT / TARGET_CHAR_BIT,
274 0, "character", objfile);
277 type = init_type (TYPE_CODE_INT,
278 TARGET_CHAR_BIT / TARGET_CHAR_BIT,
279 0, "integer*1", objfile);
281 case FT_UNSIGNED_CHAR:
282 type = init_type (TYPE_CODE_BOOL,
283 TARGET_CHAR_BIT / TARGET_CHAR_BIT,
284 TYPE_FLAG_UNSIGNED, "logical*1", objfile);
287 type = init_type (TYPE_CODE_INT,
288 gdbarch_short_bit (current_gdbarch) / TARGET_CHAR_BIT,
289 0, "integer*2", objfile);
291 case FT_SIGNED_SHORT:
292 type = init_type (TYPE_CODE_INT,
293 gdbarch_short_bit (current_gdbarch) / TARGET_CHAR_BIT,
294 0, "short", objfile); /* FIXME-fnf */
296 case FT_UNSIGNED_SHORT:
297 type = init_type (TYPE_CODE_BOOL,
298 gdbarch_short_bit (current_gdbarch) / TARGET_CHAR_BIT,
299 TYPE_FLAG_UNSIGNED, "logical*2", objfile);
302 type = init_type (TYPE_CODE_INT,
303 gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
304 0, "integer*4", objfile);
306 case FT_SIGNED_INTEGER:
307 type = init_type (TYPE_CODE_INT,
308 gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
309 0, "integer", objfile); /* FIXME -fnf */
311 case FT_UNSIGNED_INTEGER:
312 type = init_type (TYPE_CODE_BOOL,
313 gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
314 TYPE_FLAG_UNSIGNED, "logical*4", objfile);
316 case FT_FIXED_DECIMAL:
317 type = init_type (TYPE_CODE_INT,
318 gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
319 0, "fixed decimal", objfile);
322 type = init_type (TYPE_CODE_INT,
323 gdbarch_long_bit (current_gdbarch) / TARGET_CHAR_BIT,
327 type = init_type (TYPE_CODE_INT,
328 gdbarch_long_bit (current_gdbarch) / TARGET_CHAR_BIT,
329 0, "long", objfile); /* FIXME -fnf */
331 case FT_UNSIGNED_LONG:
332 type = init_type (TYPE_CODE_INT,
333 gdbarch_long_bit (current_gdbarch) / TARGET_CHAR_BIT,
334 TYPE_FLAG_UNSIGNED, "unsigned long", objfile);
337 type = init_type (TYPE_CODE_INT,
338 gdbarch_long_long_bit (current_gdbarch)
340 0, "long long", objfile);
342 case FT_SIGNED_LONG_LONG:
343 type = init_type (TYPE_CODE_INT,
344 gdbarch_long_long_bit (current_gdbarch)
346 0, "signed long long", objfile);
348 case FT_UNSIGNED_LONG_LONG:
349 type = init_type (TYPE_CODE_INT,
350 gdbarch_long_long_bit (current_gdbarch)
352 TYPE_FLAG_UNSIGNED, "unsigned long long", objfile);
355 type = init_type (TYPE_CODE_FLT,
356 TARGET_FLOAT_BIT / TARGET_CHAR_BIT,
359 case FT_DBL_PREC_FLOAT:
360 type = init_type (TYPE_CODE_FLT,
361 TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
362 0, "real*8", objfile);
364 case FT_FLOAT_DECIMAL:
365 type = init_type (TYPE_CODE_FLT,
366 TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
367 0, "floating decimal", objfile);
369 case FT_EXT_PREC_FLOAT:
370 type = init_type (TYPE_CODE_FLT,
371 TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT,
372 0, "real*16", objfile);
375 type = init_type (TYPE_CODE_COMPLEX,
376 2 * TARGET_FLOAT_BIT / TARGET_CHAR_BIT,
377 0, "complex*8", objfile);
378 TYPE_TARGET_TYPE (type) = builtin_type_f_real;
380 case FT_DBL_PREC_COMPLEX:
381 type = init_type (TYPE_CODE_COMPLEX,
382 2 * TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
383 0, "complex*16", objfile);
384 TYPE_TARGET_TYPE (type) = builtin_type_f_real_s8;
386 case FT_EXT_PREC_COMPLEX:
387 type = init_type (TYPE_CODE_COMPLEX,
388 2 * TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT,
389 0, "complex*32", objfile);
390 TYPE_TARGET_TYPE (type) = builtin_type_f_real_s16;
393 /* FIXME: For now, if we are asked to produce a type not in this
394 language, create the equivalent of a C integer type with the
395 name "<?type?>". When all the dust settles from the type
396 reconstruction work, this should probably become an error. */
397 type = init_type (TYPE_CODE_INT,
398 gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
399 0, "<?type?>", objfile);
400 warning (_("internal error: no F77 fundamental type %d"), typeid);
407 /* Table of operators and their precedences for printing expressions. */
409 static const struct op_print f_op_print_tab[] =
411 {"+", BINOP_ADD, PREC_ADD, 0},
412 {"+", UNOP_PLUS, PREC_PREFIX, 0},
413 {"-", BINOP_SUB, PREC_ADD, 0},
414 {"-", UNOP_NEG, PREC_PREFIX, 0},
415 {"*", BINOP_MUL, PREC_MUL, 0},
416 {"/", BINOP_DIV, PREC_MUL, 0},
417 {"DIV", BINOP_INTDIV, PREC_MUL, 0},
418 {"MOD", BINOP_REM, PREC_MUL, 0},
419 {"=", BINOP_ASSIGN, PREC_ASSIGN, 1},
420 {".OR.", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0},
421 {".AND.", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0},
422 {".NOT.", UNOP_LOGICAL_NOT, PREC_PREFIX, 0},
423 {".EQ.", BINOP_EQUAL, PREC_EQUAL, 0},
424 {".NE.", BINOP_NOTEQUAL, PREC_EQUAL, 0},
425 {".LE.", BINOP_LEQ, PREC_ORDER, 0},
426 {".GE.", BINOP_GEQ, PREC_ORDER, 0},
427 {".GT.", BINOP_GTR, PREC_ORDER, 0},
428 {".LT.", BINOP_LESS, PREC_ORDER, 0},
429 {"**", UNOP_IND, PREC_PREFIX, 0},
430 {"@", BINOP_REPEAT, PREC_REPEAT, 0},
434 struct type **const (f_builtin_types[]) =
436 &builtin_type_f_character,
437 &builtin_type_f_logical,
438 &builtin_type_f_logical_s1,
439 &builtin_type_f_logical_s2,
440 &builtin_type_f_integer,
441 &builtin_type_f_integer_s2,
442 &builtin_type_f_real,
443 &builtin_type_f_real_s8,
444 &builtin_type_f_real_s16,
445 &builtin_type_f_complex_s8,
446 &builtin_type_f_complex_s16,
448 &builtin_type_f_complex_s32,
450 &builtin_type_f_void,
454 /* This is declared in c-lang.h but it is silly to import that file for what
455 is already just a hack. */
456 extern int c_value_print (struct value *, struct ui_file *, int,
457 enum val_prettyprint);
459 const struct language_defn f_language_defn =
468 &exp_descriptor_standard,
469 f_parse, /* parser */
470 f_error, /* parser error function */
472 f_printchar, /* Print character constant */
473 f_printstr, /* function to print string constant */
474 f_emit_char, /* Function to print a single character */
475 f_create_fundamental_type, /* Create fundamental type in this language */
476 f_print_type, /* Print a type using appropriate syntax */
477 f_val_print, /* Print a value using appropriate syntax */
478 c_value_print, /* FIXME */
479 NULL, /* Language specific skip_trampoline */
480 value_of_this, /* value_of_this */
481 basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
482 basic_lookup_transparent_type,/* lookup_transparent_type */
483 NULL, /* Language specific symbol demangler */
484 NULL, /* Language specific class_name_from_physname */
485 f_op_print_tab, /* expression operators for printing */
486 0, /* arrays are first-class (not c-style) */
487 1, /* String lower bound */
488 &builtin_type_f_character, /* Type of string elements */
489 default_word_break_characters,
490 NULL, /* FIXME: la_language_arch_info. */
491 default_print_array_index,
496 build_fortran_types (void)
498 builtin_type_f_void =
499 init_type (TYPE_CODE_VOID, 1,
501 "VOID", (struct objfile *) NULL);
503 builtin_type_f_character =
504 init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
506 "character", (struct objfile *) NULL);
508 builtin_type_f_logical_s1 =
509 init_type (TYPE_CODE_BOOL, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
511 "logical*1", (struct objfile *) NULL);
513 builtin_type_f_integer_s2 =
514 init_type (TYPE_CODE_INT,
515 gdbarch_short_bit (current_gdbarch) / TARGET_CHAR_BIT,
516 0, "integer*2", (struct objfile *) NULL);
518 builtin_type_f_logical_s2 =
519 init_type (TYPE_CODE_BOOL,
520 gdbarch_short_bit (current_gdbarch) / TARGET_CHAR_BIT,
521 TYPE_FLAG_UNSIGNED, "logical*2", (struct objfile *) NULL);
523 builtin_type_f_integer =
524 init_type (TYPE_CODE_INT,
525 gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
526 0, "integer", (struct objfile *) NULL);
528 builtin_type_f_logical =
529 init_type (TYPE_CODE_BOOL,
530 gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
531 TYPE_FLAG_UNSIGNED, "logical*4", (struct objfile *) NULL);
533 builtin_type_f_real =
534 init_type (TYPE_CODE_FLT, TARGET_FLOAT_BIT / TARGET_CHAR_BIT,
536 "real", (struct objfile *) NULL);
538 builtin_type_f_real_s8 =
539 init_type (TYPE_CODE_FLT, TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
541 "real*8", (struct objfile *) NULL);
543 builtin_type_f_real_s16 =
544 init_type (TYPE_CODE_FLT, TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT,
546 "real*16", (struct objfile *) NULL);
548 builtin_type_f_complex_s8 =
549 init_type (TYPE_CODE_COMPLEX, 2 * TARGET_FLOAT_BIT / TARGET_CHAR_BIT,
551 "complex*8", (struct objfile *) NULL);
552 TYPE_TARGET_TYPE (builtin_type_f_complex_s8) = builtin_type_f_real;
554 builtin_type_f_complex_s16 =
555 init_type (TYPE_CODE_COMPLEX, 2 * TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
557 "complex*16", (struct objfile *) NULL);
558 TYPE_TARGET_TYPE (builtin_type_f_complex_s16) = builtin_type_f_real_s8;
560 /* We have a new size == 4 double floats for the
561 complex*32 data type */
563 builtin_type_f_complex_s32 =
564 init_type (TYPE_CODE_COMPLEX, 2 * TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT,
566 "complex*32", (struct objfile *) NULL);
567 TYPE_TARGET_TYPE (builtin_type_f_complex_s32) = builtin_type_f_real_s16;
571 _initialize_f_language (void)
573 build_fortran_types ();
575 DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_character);
576 DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_logical);
577 DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_logical_s1);
578 DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_logical_s2);
579 DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_integer);
580 DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_integer_s2);
581 DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_real);
582 DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_real_s8);
583 DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_real_s16);
584 DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_complex_s8);
585 DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_complex_s16);
586 DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_complex_s32);
587 DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_void);
588 DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_string);
589 deprecated_register_gdbarch_swap (NULL, 0, build_fortran_types);
591 builtin_type_string =
592 init_type (TYPE_CODE_STRING, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
594 "character string", (struct objfile *) NULL);
596 add_language (&f_language_defn);
601 allocate_saved_bf_node (void)
605 new = (SAVED_BF_PTR) xmalloc (sizeof (SAVED_BF));
609 static SAVED_FUNCTION *
610 allocate_saved_function_node (void)
614 new = (SAVED_FUNCTION *) xmalloc (sizeof (SAVED_FUNCTION));
618 static SAVED_F77_COMMON_PTR
619 allocate_saved_f77_common_node (void)
621 SAVED_F77_COMMON_PTR new;
623 new = (SAVED_F77_COMMON_PTR) xmalloc (sizeof (SAVED_F77_COMMON));
627 static COMMON_ENTRY_PTR
628 allocate_common_entry_node (void)
630 COMMON_ENTRY_PTR new;
632 new = (COMMON_ENTRY_PTR) xmalloc (sizeof (COMMON_ENTRY));
637 SAVED_F77_COMMON_PTR head_common_list = NULL; /* Ptr to 1st saved COMMON */
638 SAVED_F77_COMMON_PTR tail_common_list = NULL; /* Ptr to last saved COMMON */
639 SAVED_F77_COMMON_PTR current_common = NULL; /* Ptr to current COMMON */
642 static SAVED_BF_PTR saved_bf_list = NULL; /* Ptr to (.bf,function)
644 static SAVED_BF_PTR saved_bf_list_end = NULL; /* Ptr to above list's end */
645 static SAVED_BF_PTR current_head_bf_list = NULL; /* Current head of above list
648 static SAVED_BF_PTR tmp_bf_ptr; /* Generic temporary for use
651 /* The following function simply enters a given common block onto
652 the global common block chain */
655 add_common_block (char *name, CORE_ADDR offset, int secnum, char *func_stab)
657 SAVED_F77_COMMON_PTR tmp;
658 char *c, *local_copy_func_stab;
660 /* If the COMMON block we are trying to add has a blank
661 name (i.e. "#BLNK_COM") then we set it to __BLANK
662 because the darn "#" character makes GDB's input
666 if (strcmp (name, BLANK_COMMON_NAME_ORIGINAL) == 0
667 || strcmp (name, BLANK_COMMON_NAME_MF77) == 0)
671 name = alloca (strlen (BLANK_COMMON_NAME_LOCAL) + 1);
672 strcpy (name, BLANK_COMMON_NAME_LOCAL);
675 tmp = allocate_saved_f77_common_node ();
677 local_copy_func_stab = xmalloc (strlen (func_stab) + 1);
678 strcpy (local_copy_func_stab, func_stab);
680 tmp->name = xmalloc (strlen (name) + 1);
682 /* local_copy_func_stab is a stabstring, let us first extract the
683 function name from the stab by NULLing out the ':' character. */
687 c = strchr (local_copy_func_stab, ':');
692 error (_("Malformed function STAB found in add_common_block()"));
695 tmp->owning_function = xmalloc (strlen (local_copy_func_stab) + 1);
697 strcpy (tmp->owning_function, local_copy_func_stab);
699 strcpy (tmp->name, name);
700 tmp->offset = offset;
703 tmp->secnum = secnum;
705 current_common = tmp;
707 if (head_common_list == NULL)
709 head_common_list = tail_common_list = tmp;
713 tail_common_list->next = tmp;
714 tail_common_list = tmp;
719 /* The following function simply enters a given common entry onto
720 the "current_common" block that has been saved away. */
724 add_common_entry (struct symbol *entry_sym_ptr)
726 COMMON_ENTRY_PTR tmp;
730 /* The order of this list is important, since
731 we expect the entries to appear in decl.
732 order when we later issue "info common" calls */
734 tmp = allocate_common_entry_node ();
737 tmp->symbol = entry_sym_ptr;
739 if (current_common == NULL)
740 error (_("Attempt to add COMMON entry with no block open!"));
743 if (current_common->entries == NULL)
745 current_common->entries = tmp;
746 current_common->end_of_entries = tmp;
750 current_common->end_of_entries->next = tmp;
751 current_common->end_of_entries = tmp;
757 /* This routine finds the first encountred COMMON block named "name" */
760 static SAVED_F77_COMMON_PTR
761 find_first_common_named (char *name)
764 SAVED_F77_COMMON_PTR tmp;
766 tmp = head_common_list;
770 if (strcmp (tmp->name, name) == 0)
779 /* This routine finds the first encountred COMMON block named "name"
780 that belongs to function funcname */
783 find_common_for_function (char *name, char *funcname)
786 SAVED_F77_COMMON_PTR tmp;
788 tmp = head_common_list;
792 if (DEPRECATED_STREQ (tmp->name, name)
793 && DEPRECATED_STREQ (tmp->owning_function, funcname))
804 /* The following function is called to patch up the offsets
805 for the statics contained in the COMMON block named
809 patch_common_entries (SAVED_F77_COMMON_PTR blk, CORE_ADDR offset, int secnum)
811 COMMON_ENTRY_PTR entry;
813 blk->offset = offset; /* Keep this around for future use. */
815 entry = blk->entries;
817 while (entry != NULL)
819 SYMBOL_VALUE (entry->symbol) += offset;
820 SYMBOL_SECTION (entry->symbol) = secnum;
824 blk->secnum = secnum;
827 /* Patch all commons named "name" that need patching.Since COMMON
828 blocks occur with relative infrequency, we simply do a linear scan on
829 the name. Eventually, the best way to do this will be a
830 hashed-lookup. Secnum is the section number for the .bss section
831 (which is where common data lives). */
834 patch_all_commons_by_name (char *name, CORE_ADDR offset, int secnum)
837 SAVED_F77_COMMON_PTR tmp;
839 /* For blank common blocks, change the canonical reprsentation
842 if (strcmp (name, BLANK_COMMON_NAME_ORIGINAL) == 0
843 || strcmp (name, BLANK_COMMON_NAME_MF77) == 0)
846 name = alloca (strlen (BLANK_COMMON_NAME_LOCAL) + 1);
847 strcpy (name, BLANK_COMMON_NAME_LOCAL);
850 tmp = head_common_list;
854 if (COMMON_NEEDS_PATCHING (tmp))
855 if (strcmp (tmp->name, name) == 0)
856 patch_common_entries (tmp, offset, secnum);
863 /* This macro adds the symbol-number for the start of the function
864 (the symbol number of the .bf) referenced by symnum_fcn to a
865 list. This list, in reality should be a FIFO queue but since
866 #line pragmas sometimes cause line ranges to get messed up
867 we simply create a linear list. This list can then be searched
868 first by a queueing algorithm and upon failure fall back to
872 #define ADD_BF_SYMNUM(bf_sym,fcn_sym) \
874 if (saved_bf_list == NULL) \
876 tmp_bf_ptr = allocate_saved_bf_node(); \
878 tmp_bf_ptr->symnum_bf = (bf_sym); \
879 tmp_bf_ptr->symnum_fcn = (fcn_sym); \
880 tmp_bf_ptr->next = NULL; \
882 current_head_bf_list = saved_bf_list = tmp_bf_ptr; \
883 saved_bf_list_end = tmp_bf_ptr; \
887 tmp_bf_ptr = allocate_saved_bf_node(); \
889 tmp_bf_ptr->symnum_bf = (bf_sym); \
890 tmp_bf_ptr->symnum_fcn = (fcn_sym); \
891 tmp_bf_ptr->next = NULL; \
893 saved_bf_list_end->next = tmp_bf_ptr; \
894 saved_bf_list_end = tmp_bf_ptr; \
898 /* This function frees the entire (.bf,function) list */
905 SAVED_BF_PTR tmp = saved_bf_list;
906 SAVED_BF_PTR next = NULL;
914 saved_bf_list = NULL;
918 int global_remote_debug;
923 get_bf_for_fcn (long the_function)
928 /* First use a simple queuing algorithm (i.e. look and see if the
929 item at the head of the queue is the one you want) */
931 if (saved_bf_list == NULL)
932 internal_error (__FILE__, __LINE__,
933 _("cannot get .bf node off empty list"));
935 if (current_head_bf_list != NULL)
936 if (current_head_bf_list->symnum_fcn == the_function)
938 if (global_remote_debug)
939 fprintf_unfiltered (gdb_stderr, "*");
941 tmp = current_head_bf_list;
942 current_head_bf_list = current_head_bf_list->next;
943 return (tmp->symnum_bf);
946 /* If the above did not work (probably because #line directives were
947 used in the sourcefile and they messed up our internal tables) we now do
948 the ugly linear scan */
950 if (global_remote_debug)
951 fprintf_unfiltered (gdb_stderr, "\ndefaulting to linear scan\n");
958 if (tmp->symnum_fcn == the_function)
960 if (global_remote_debug)
961 fprintf_unfiltered (gdb_stderr, "Found in %d probes\n", nprobes);
962 current_head_bf_list = tmp->next;
963 return (tmp->symnum_bf);
971 static SAVED_FUNCTION_PTR saved_function_list = NULL;
972 static SAVED_FUNCTION_PTR saved_function_list_end = NULL;
975 clear_function_list (void)
977 SAVED_FUNCTION_PTR tmp = saved_function_list;
978 SAVED_FUNCTION_PTR next = NULL;
987 saved_function_list = NULL;