1 /* Fortran language support routines for GDB, the GNU debugger.
2 Copyright 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002
3 Free Software Foundation, Inc.
4 Contributed by Motorola. Adapted from the C parser by Farooq Butt
5 (fmbutt@engage.sps.mot.com).
7 This file is part of GDB.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place - Suite 330,
22 Boston, MA 02111-1307, USA. */
25 #include "gdb_string.h"
28 #include "expression.h"
29 #include "parser-defs.h"
34 /* The built-in types of F77. FIXME: integer*4 is missing, plain
35 logical is missing (builtin_type_logical is logical*4). */
37 struct type *builtin_type_f_character;
38 struct type *builtin_type_f_logical;
39 struct type *builtin_type_f_logical_s1;
40 struct type *builtin_type_f_logical_s2;
41 struct type *builtin_type_f_integer;
42 struct type *builtin_type_f_integer_s2;
43 struct type *builtin_type_f_real;
44 struct type *builtin_type_f_real_s8;
45 struct type *builtin_type_f_real_s16;
46 struct type *builtin_type_f_complex_s8;
47 struct type *builtin_type_f_complex_s16;
48 struct type *builtin_type_f_complex_s32;
49 struct type *builtin_type_f_void;
51 /* Following is dubious stuff that had been in the xcoff reader. */
55 long line_offset; /* Line offset for function */
56 struct saved_fcn *next;
60 struct saved_bf_symnum
62 long symnum_fcn; /* Symnum of function (i.e. .function directive) */
63 long symnum_bf; /* Symnum of .bf for this function */
64 struct saved_bf_symnum *next;
67 typedef struct saved_fcn SAVED_FUNCTION, *SAVED_FUNCTION_PTR;
68 typedef struct saved_bf_symnum SAVED_BF, *SAVED_BF_PTR;
72 extern void _initialize_f_language (void);
74 static void clear_function_list (void);
75 static long get_bf_for_fcn (long);
76 static void clear_bf_list (void);
77 static void patch_all_commons_by_name (char *, CORE_ADDR, int);
78 static SAVED_F77_COMMON_PTR find_first_common_named (char *);
79 static void add_common_entry (struct symbol *);
80 static void add_common_block (char *, CORE_ADDR, int, char *);
81 static SAVED_FUNCTION *allocate_saved_function_node (void);
82 static SAVED_BF_PTR allocate_saved_bf_node (void);
83 static COMMON_ENTRY_PTR allocate_common_entry_node (void);
84 static SAVED_F77_COMMON_PTR allocate_saved_f77_common_node (void);
85 static void patch_common_entries (SAVED_F77_COMMON_PTR, CORE_ADDR, int);
88 static struct type *f_create_fundamental_type (struct objfile *, int);
89 static void f_printstr (struct ui_file * stream, char *string,
90 unsigned int length, int width,
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 (register 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, char *string, unsigned int length,
164 int width, int force_ellipses)
166 register unsigned int i;
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 register 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 TARGET_SHORT_BIT / TARGET_CHAR_BIT,
289 0, "integer*2", objfile);
291 case FT_SIGNED_SHORT:
292 type = init_type (TYPE_CODE_INT,
293 TARGET_SHORT_BIT / TARGET_CHAR_BIT,
294 0, "short", objfile); /* FIXME-fnf */
296 case FT_UNSIGNED_SHORT:
297 type = init_type (TYPE_CODE_BOOL,
298 TARGET_SHORT_BIT / TARGET_CHAR_BIT,
299 TYPE_FLAG_UNSIGNED, "logical*2", objfile);
302 type = init_type (TYPE_CODE_INT,
303 TARGET_INT_BIT / TARGET_CHAR_BIT,
304 0, "integer*4", objfile);
306 case FT_SIGNED_INTEGER:
307 type = init_type (TYPE_CODE_INT,
308 TARGET_INT_BIT / TARGET_CHAR_BIT,
309 0, "integer", objfile); /* FIXME -fnf */
311 case FT_UNSIGNED_INTEGER:
312 type = init_type (TYPE_CODE_BOOL,
313 TARGET_INT_BIT / TARGET_CHAR_BIT,
314 TYPE_FLAG_UNSIGNED, "logical*4", objfile);
316 case FT_FIXED_DECIMAL:
317 type = init_type (TYPE_CODE_INT,
318 TARGET_INT_BIT / TARGET_CHAR_BIT,
319 0, "fixed decimal", objfile);
322 type = init_type (TYPE_CODE_INT,
323 TARGET_LONG_BIT / TARGET_CHAR_BIT,
327 type = init_type (TYPE_CODE_INT,
328 TARGET_LONG_BIT / TARGET_CHAR_BIT,
329 0, "long", objfile); /* FIXME -fnf */
331 case FT_UNSIGNED_LONG:
332 type = init_type (TYPE_CODE_INT,
333 TARGET_LONG_BIT / TARGET_CHAR_BIT,
334 TYPE_FLAG_UNSIGNED, "unsigned long", objfile);
337 type = init_type (TYPE_CODE_INT,
338 TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT,
339 0, "long long", objfile);
341 case FT_SIGNED_LONG_LONG:
342 type = init_type (TYPE_CODE_INT,
343 TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT,
344 0, "signed long long", objfile);
346 case FT_UNSIGNED_LONG_LONG:
347 type = init_type (TYPE_CODE_INT,
348 TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT,
349 TYPE_FLAG_UNSIGNED, "unsigned long long", objfile);
352 type = init_type (TYPE_CODE_FLT,
353 TARGET_FLOAT_BIT / TARGET_CHAR_BIT,
356 case FT_DBL_PREC_FLOAT:
357 type = init_type (TYPE_CODE_FLT,
358 TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
359 0, "real*8", objfile);
361 case FT_FLOAT_DECIMAL:
362 type = init_type (TYPE_CODE_FLT,
363 TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
364 0, "floating decimal", objfile);
366 case FT_EXT_PREC_FLOAT:
367 type = init_type (TYPE_CODE_FLT,
368 TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT,
369 0, "real*16", objfile);
372 type = init_type (TYPE_CODE_COMPLEX,
373 2 * TARGET_FLOAT_BIT / TARGET_CHAR_BIT,
374 0, "complex*8", objfile);
375 TYPE_TARGET_TYPE (type) = builtin_type_f_real;
377 case FT_DBL_PREC_COMPLEX:
378 type = init_type (TYPE_CODE_COMPLEX,
379 2 * TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
380 0, "complex*16", objfile);
381 TYPE_TARGET_TYPE (type) = builtin_type_f_real_s8;
383 case FT_EXT_PREC_COMPLEX:
384 type = init_type (TYPE_CODE_COMPLEX,
385 2 * TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT,
386 0, "complex*32", objfile);
387 TYPE_TARGET_TYPE (type) = builtin_type_f_real_s16;
390 /* FIXME: For now, if we are asked to produce a type not in this
391 language, create the equivalent of a C integer type with the
392 name "<?type?>". When all the dust settles from the type
393 reconstruction work, this should probably become an error. */
394 type = init_type (TYPE_CODE_INT,
395 TARGET_INT_BIT / TARGET_CHAR_BIT,
396 0, "<?type?>", objfile);
397 warning ("internal error: no F77 fundamental type %d", typeid);
404 /* Table of operators and their precedences for printing expressions. */
406 static const struct op_print f_op_print_tab[] =
408 {"+", BINOP_ADD, PREC_ADD, 0},
409 {"+", UNOP_PLUS, PREC_PREFIX, 0},
410 {"-", BINOP_SUB, PREC_ADD, 0},
411 {"-", UNOP_NEG, PREC_PREFIX, 0},
412 {"*", BINOP_MUL, PREC_MUL, 0},
413 {"/", BINOP_DIV, PREC_MUL, 0},
414 {"DIV", BINOP_INTDIV, PREC_MUL, 0},
415 {"MOD", BINOP_REM, PREC_MUL, 0},
416 {"=", BINOP_ASSIGN, PREC_ASSIGN, 1},
417 {".OR.", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0},
418 {".AND.", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0},
419 {".NOT.", UNOP_LOGICAL_NOT, PREC_PREFIX, 0},
420 {".EQ.", BINOP_EQUAL, PREC_EQUAL, 0},
421 {".NE.", BINOP_NOTEQUAL, PREC_EQUAL, 0},
422 {".LE.", BINOP_LEQ, PREC_ORDER, 0},
423 {".GE.", BINOP_GEQ, PREC_ORDER, 0},
424 {".GT.", BINOP_GTR, PREC_ORDER, 0},
425 {".LT.", BINOP_LESS, PREC_ORDER, 0},
426 {"**", UNOP_IND, PREC_PREFIX, 0},
427 {"@", BINOP_REPEAT, PREC_REPEAT, 0},
431 struct type **const (f_builtin_types[]) =
433 &builtin_type_f_character,
434 &builtin_type_f_logical,
435 &builtin_type_f_logical_s1,
436 &builtin_type_f_logical_s2,
437 &builtin_type_f_integer,
438 &builtin_type_f_integer_s2,
439 &builtin_type_f_real,
440 &builtin_type_f_real_s8,
441 &builtin_type_f_real_s16,
442 &builtin_type_f_complex_s8,
443 &builtin_type_f_complex_s16,
445 &builtin_type_f_complex_s32,
447 &builtin_type_f_void,
451 /* This is declared in c-lang.h but it is silly to import that file for what
452 is already just a hack. */
453 extern int c_value_print (struct value *, struct ui_file *, int,
454 enum val_prettyprint);
456 const struct language_defn f_language_defn =
464 f_parse, /* parser */
465 f_error, /* parser error function */
466 evaluate_subexp_standard,
467 f_printchar, /* Print character constant */
468 f_printstr, /* function to print string constant */
469 f_emit_char, /* Function to print a single character */
470 f_create_fundamental_type, /* Create fundamental type in this language */
471 f_print_type, /* Print a type using appropriate syntax */
472 f_val_print, /* Print a value using appropriate syntax */
473 c_value_print, /* FIXME */
474 NULL, /* Language specific skip_trampoline */
475 NULL, /* Language specific symbol demangler */
476 {"", "", "", ""}, /* Binary format info */
477 {"0%o", "0", "o", ""}, /* Octal format info */
478 {"%d", "", "d", ""}, /* Decimal format info */
479 {"0x%x", "0x", "x", ""}, /* Hex format info */
480 f_op_print_tab, /* expression operators for printing */
481 0, /* arrays are first-class (not c-style) */
482 1, /* String lower bound */
483 &builtin_type_f_character, /* Type of string elements */
488 build_fortran_types (void)
490 builtin_type_f_void =
491 init_type (TYPE_CODE_VOID, 1,
493 "VOID", (struct objfile *) NULL);
495 builtin_type_f_character =
496 init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
498 "character", (struct objfile *) NULL);
500 builtin_type_f_logical_s1 =
501 init_type (TYPE_CODE_BOOL, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
503 "logical*1", (struct objfile *) NULL);
505 builtin_type_f_integer_s2 =
506 init_type (TYPE_CODE_INT, TARGET_SHORT_BIT / TARGET_CHAR_BIT,
508 "integer*2", (struct objfile *) NULL);
510 builtin_type_f_logical_s2 =
511 init_type (TYPE_CODE_BOOL, TARGET_SHORT_BIT / TARGET_CHAR_BIT,
513 "logical*2", (struct objfile *) NULL);
515 builtin_type_f_integer =
516 init_type (TYPE_CODE_INT, TARGET_INT_BIT / TARGET_CHAR_BIT,
518 "integer", (struct objfile *) NULL);
520 builtin_type_f_logical =
521 init_type (TYPE_CODE_BOOL, TARGET_INT_BIT / TARGET_CHAR_BIT,
523 "logical*4", (struct objfile *) NULL);
525 builtin_type_f_real =
526 init_type (TYPE_CODE_FLT, TARGET_FLOAT_BIT / TARGET_CHAR_BIT,
528 "real", (struct objfile *) NULL);
530 builtin_type_f_real_s8 =
531 init_type (TYPE_CODE_FLT, TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
533 "real*8", (struct objfile *) NULL);
535 builtin_type_f_real_s16 =
536 init_type (TYPE_CODE_FLT, TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT,
538 "real*16", (struct objfile *) NULL);
540 builtin_type_f_complex_s8 =
541 init_type (TYPE_CODE_COMPLEX, 2 * TARGET_FLOAT_BIT / TARGET_CHAR_BIT,
543 "complex*8", (struct objfile *) NULL);
544 TYPE_TARGET_TYPE (builtin_type_f_complex_s8) = builtin_type_f_real;
546 builtin_type_f_complex_s16 =
547 init_type (TYPE_CODE_COMPLEX, 2 * TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
549 "complex*16", (struct objfile *) NULL);
550 TYPE_TARGET_TYPE (builtin_type_f_complex_s16) = builtin_type_f_real_s8;
552 /* We have a new size == 4 double floats for the
553 complex*32 data type */
555 builtin_type_f_complex_s32 =
556 init_type (TYPE_CODE_COMPLEX, 2 * TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT,
558 "complex*32", (struct objfile *) NULL);
559 TYPE_TARGET_TYPE (builtin_type_f_complex_s32) = builtin_type_f_real_s16;
563 _initialize_f_language (void)
565 build_fortran_types ();
566 register_gdbarch_swap (&builtin_type_f_character,
567 sizeof (struct type *), NULL);
568 register_gdbarch_swap (&builtin_type_f_logical,
569 sizeof (struct type *), NULL);
570 register_gdbarch_swap (&builtin_type_f_logical_s1,
571 sizeof (struct type *), NULL);
572 register_gdbarch_swap (&builtin_type_f_logical_s2,
573 sizeof (struct type *), NULL);
574 register_gdbarch_swap (&builtin_type_f_integer,
575 sizeof (struct type *), NULL);
576 register_gdbarch_swap (&builtin_type_f_integer_s2,
577 sizeof (struct type *), NULL);
578 register_gdbarch_swap (&builtin_type_f_real,
579 sizeof (struct type *), NULL);
580 register_gdbarch_swap (&builtin_type_f_real_s8,
581 sizeof (struct type *), NULL);
582 register_gdbarch_swap (&builtin_type_f_real_s16,
583 sizeof (struct type *), NULL);
584 register_gdbarch_swap (&builtin_type_f_complex_s8,
585 sizeof (struct type *), NULL);
586 register_gdbarch_swap (&builtin_type_f_complex_s16,
587 sizeof (struct type *), NULL);
588 register_gdbarch_swap (&builtin_type_f_complex_s32,
589 sizeof (struct type *), NULL);
590 register_gdbarch_swap (&builtin_type_f_void,
591 sizeof (struct type *), NULL);
592 register_gdbarch_swap (&builtin_type_string,
593 sizeof (struct type *), NULL);
595 register_gdbarch_swap (NULL, 0, build_fortran_types);
597 builtin_type_string =
598 init_type (TYPE_CODE_STRING, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
600 "character string", (struct objfile *) NULL);
602 add_language (&f_language_defn);
607 allocate_saved_bf_node (void)
611 new = (SAVED_BF_PTR) xmalloc (sizeof (SAVED_BF));
615 static SAVED_FUNCTION *
616 allocate_saved_function_node (void)
620 new = (SAVED_FUNCTION *) xmalloc (sizeof (SAVED_FUNCTION));
624 static SAVED_F77_COMMON_PTR
625 allocate_saved_f77_common_node (void)
627 SAVED_F77_COMMON_PTR new;
629 new = (SAVED_F77_COMMON_PTR) xmalloc (sizeof (SAVED_F77_COMMON));
633 static COMMON_ENTRY_PTR
634 allocate_common_entry_node (void)
636 COMMON_ENTRY_PTR new;
638 new = (COMMON_ENTRY_PTR) xmalloc (sizeof (COMMON_ENTRY));
643 SAVED_F77_COMMON_PTR head_common_list = NULL; /* Ptr to 1st saved COMMON */
644 SAVED_F77_COMMON_PTR tail_common_list = NULL; /* Ptr to last saved COMMON */
645 SAVED_F77_COMMON_PTR current_common = NULL; /* Ptr to current COMMON */
648 static SAVED_BF_PTR saved_bf_list = NULL; /* Ptr to (.bf,function)
650 static SAVED_BF_PTR saved_bf_list_end = NULL; /* Ptr to above list's end */
651 static SAVED_BF_PTR current_head_bf_list = NULL; /* Current head of above list
654 static SAVED_BF_PTR tmp_bf_ptr; /* Generic temporary for use
657 /* The following function simply enters a given common block onto
658 the global common block chain */
661 add_common_block (char *name, CORE_ADDR offset, int secnum, char *func_stab)
663 SAVED_F77_COMMON_PTR tmp;
664 char *c, *local_copy_func_stab;
666 /* If the COMMON block we are trying to add has a blank
667 name (i.e. "#BLNK_COM") then we set it to __BLANK
668 because the darn "#" character makes GDB's input
672 if (STREQ (name, BLANK_COMMON_NAME_ORIGINAL) ||
673 STREQ (name, BLANK_COMMON_NAME_MF77))
677 name = alloca (strlen (BLANK_COMMON_NAME_LOCAL) + 1);
678 strcpy (name, BLANK_COMMON_NAME_LOCAL);
681 tmp = allocate_saved_f77_common_node ();
683 local_copy_func_stab = xmalloc (strlen (func_stab) + 1);
684 strcpy (local_copy_func_stab, func_stab);
686 tmp->name = xmalloc (strlen (name) + 1);
688 /* local_copy_func_stab is a stabstring, let us first extract the
689 function name from the stab by NULLing out the ':' character. */
693 c = strchr (local_copy_func_stab, ':');
698 error ("Malformed function STAB found in add_common_block()");
701 tmp->owning_function = xmalloc (strlen (local_copy_func_stab) + 1);
703 strcpy (tmp->owning_function, local_copy_func_stab);
705 strcpy (tmp->name, name);
706 tmp->offset = offset;
709 tmp->secnum = secnum;
711 current_common = tmp;
713 if (head_common_list == NULL)
715 head_common_list = tail_common_list = tmp;
719 tail_common_list->next = tmp;
720 tail_common_list = tmp;
725 /* The following function simply enters a given common entry onto
726 the "current_common" block that has been saved away. */
730 add_common_entry (struct symbol *entry_sym_ptr)
732 COMMON_ENTRY_PTR tmp;
736 /* The order of this list is important, since
737 we expect the entries to appear in decl.
738 order when we later issue "info common" calls */
740 tmp = allocate_common_entry_node ();
743 tmp->symbol = entry_sym_ptr;
745 if (current_common == NULL)
746 error ("Attempt to add COMMON entry with no block open!");
749 if (current_common->entries == NULL)
751 current_common->entries = tmp;
752 current_common->end_of_entries = tmp;
756 current_common->end_of_entries->next = tmp;
757 current_common->end_of_entries = tmp;
763 /* This routine finds the first encountred COMMON block named "name" */
766 static SAVED_F77_COMMON_PTR
767 find_first_common_named (char *name)
770 SAVED_F77_COMMON_PTR tmp;
772 tmp = head_common_list;
776 if (STREQ (tmp->name, name))
785 /* This routine finds the first encountred COMMON block named "name"
786 that belongs to function funcname */
789 find_common_for_function (char *name, char *funcname)
792 SAVED_F77_COMMON_PTR tmp;
794 tmp = head_common_list;
798 if (STREQ (tmp->name, name) && STREQ (tmp->owning_function, funcname))
809 /* The following function is called to patch up the offsets
810 for the statics contained in the COMMON block named
814 patch_common_entries (SAVED_F77_COMMON_PTR blk, CORE_ADDR offset, int secnum)
816 COMMON_ENTRY_PTR entry;
818 blk->offset = offset; /* Keep this around for future use. */
820 entry = blk->entries;
822 while (entry != NULL)
824 SYMBOL_VALUE (entry->symbol) += offset;
825 SYMBOL_SECTION (entry->symbol) = secnum;
829 blk->secnum = secnum;
832 /* Patch all commons named "name" that need patching.Since COMMON
833 blocks occur with relative infrequency, we simply do a linear scan on
834 the name. Eventually, the best way to do this will be a
835 hashed-lookup. Secnum is the section number for the .bss section
836 (which is where common data lives). */
839 patch_all_commons_by_name (char *name, CORE_ADDR offset, int secnum)
842 SAVED_F77_COMMON_PTR tmp;
844 /* For blank common blocks, change the canonical reprsentation
847 if ((STREQ (name, BLANK_COMMON_NAME_ORIGINAL)) ||
848 (STREQ (name, BLANK_COMMON_NAME_MF77)))
851 name = alloca (strlen (BLANK_COMMON_NAME_LOCAL) + 1);
852 strcpy (name, BLANK_COMMON_NAME_LOCAL);
855 tmp = head_common_list;
859 if (COMMON_NEEDS_PATCHING (tmp))
860 if (STREQ (tmp->name, name))
861 patch_common_entries (tmp, offset, secnum);
868 /* This macro adds the symbol-number for the start of the function
869 (the symbol number of the .bf) referenced by symnum_fcn to a
870 list. This list, in reality should be a FIFO queue but since
871 #line pragmas sometimes cause line ranges to get messed up
872 we simply create a linear list. This list can then be searched
873 first by a queueing algorithm and upon failure fall back to
877 #define ADD_BF_SYMNUM(bf_sym,fcn_sym) \
879 if (saved_bf_list == NULL) \
881 tmp_bf_ptr = allocate_saved_bf_node(); \
883 tmp_bf_ptr->symnum_bf = (bf_sym); \
884 tmp_bf_ptr->symnum_fcn = (fcn_sym); \
885 tmp_bf_ptr->next = NULL; \
887 current_head_bf_list = saved_bf_list = tmp_bf_ptr; \
888 saved_bf_list_end = tmp_bf_ptr; \
892 tmp_bf_ptr = allocate_saved_bf_node(); \
894 tmp_bf_ptr->symnum_bf = (bf_sym); \
895 tmp_bf_ptr->symnum_fcn = (fcn_sym); \
896 tmp_bf_ptr->next = NULL; \
898 saved_bf_list_end->next = tmp_bf_ptr; \
899 saved_bf_list_end = tmp_bf_ptr; \
903 /* This function frees the entire (.bf,function) list */
910 SAVED_BF_PTR tmp = saved_bf_list;
911 SAVED_BF_PTR next = NULL;
919 saved_bf_list = NULL;
923 int global_remote_debug;
928 get_bf_for_fcn (long the_function)
933 /* First use a simple queuing algorithm (i.e. look and see if the
934 item at the head of the queue is the one you want) */
936 if (saved_bf_list == NULL)
937 internal_error (__FILE__, __LINE__,
938 "cannot get .bf node off empty list");
940 if (current_head_bf_list != NULL)
941 if (current_head_bf_list->symnum_fcn == the_function)
943 if (global_remote_debug)
944 fprintf_unfiltered (gdb_stderr, "*");
946 tmp = current_head_bf_list;
947 current_head_bf_list = current_head_bf_list->next;
948 return (tmp->symnum_bf);
951 /* If the above did not work (probably because #line directives were
952 used in the sourcefile and they messed up our internal tables) we now do
953 the ugly linear scan */
955 if (global_remote_debug)
956 fprintf_unfiltered (gdb_stderr, "\ndefaulting to linear scan\n");
963 if (tmp->symnum_fcn == the_function)
965 if (global_remote_debug)
966 fprintf_unfiltered (gdb_stderr, "Found in %d probes\n", nprobes);
967 current_head_bf_list = tmp->next;
968 return (tmp->symnum_bf);
976 static SAVED_FUNCTION_PTR saved_function_list = NULL;
977 static SAVED_FUNCTION_PTR saved_function_list_end = NULL;
980 clear_function_list (void)
982 SAVED_FUNCTION_PTR tmp = saved_function_list;
983 SAVED_FUNCTION_PTR next = NULL;
992 saved_function_list = NULL;