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;
170 extern int inspect_it;
174 fputs_filtered ("''", gdb_stdout);
178 for (i = 0; i < length && things_printed < print_max; ++i)
180 /* Position of the character we are examining
181 to see whether it is repeated. */
183 /* Number of repetitions we have detected so far. */
190 fputs_filtered (", ", stream);
196 while (rep1 < length && string[rep1] == string[i])
202 if (reps > repeat_count_threshold)
207 fputs_filtered ("\\', ", stream);
209 fputs_filtered ("', ", stream);
212 f_printchar (string[i], stream);
213 fprintf_filtered (stream, " <repeats %u times>", reps);
215 things_printed += repeat_count_threshold;
223 fputs_filtered ("\\'", stream);
225 fputs_filtered ("'", stream);
228 LA_EMIT_CHAR (string[i], stream, '"');
233 /* Terminate the quotes if necessary. */
237 fputs_filtered ("\\'", stream);
239 fputs_filtered ("'", stream);
242 if (force_ellipses || i < length)
243 fputs_filtered ("...", stream);
246 /* FIXME: This is a copy of c_create_fundamental_type(), before
247 all the non-C types were stripped from it. Needs to be fixed
248 by an experienced F77 programmer. */
251 f_create_fundamental_type (struct objfile *objfile, int typeid)
253 register struct type *type = NULL;
258 type = init_type (TYPE_CODE_VOID,
259 TARGET_CHAR_BIT / TARGET_CHAR_BIT,
263 type = init_type (TYPE_CODE_BOOL,
264 TARGET_CHAR_BIT / TARGET_CHAR_BIT,
265 TYPE_FLAG_UNSIGNED, "boolean", objfile);
268 type = init_type (TYPE_CODE_STRING,
269 TARGET_CHAR_BIT / TARGET_CHAR_BIT,
270 0, "string", objfile);
273 type = init_type (TYPE_CODE_INT,
274 TARGET_CHAR_BIT / TARGET_CHAR_BIT,
275 0, "character", objfile);
278 type = init_type (TYPE_CODE_INT,
279 TARGET_CHAR_BIT / TARGET_CHAR_BIT,
280 0, "integer*1", objfile);
282 case FT_UNSIGNED_CHAR:
283 type = init_type (TYPE_CODE_BOOL,
284 TARGET_CHAR_BIT / TARGET_CHAR_BIT,
285 TYPE_FLAG_UNSIGNED, "logical*1", objfile);
288 type = init_type (TYPE_CODE_INT,
289 TARGET_SHORT_BIT / TARGET_CHAR_BIT,
290 0, "integer*2", objfile);
292 case FT_SIGNED_SHORT:
293 type = init_type (TYPE_CODE_INT,
294 TARGET_SHORT_BIT / TARGET_CHAR_BIT,
295 0, "short", objfile); /* FIXME-fnf */
297 case FT_UNSIGNED_SHORT:
298 type = init_type (TYPE_CODE_BOOL,
299 TARGET_SHORT_BIT / TARGET_CHAR_BIT,
300 TYPE_FLAG_UNSIGNED, "logical*2", objfile);
303 type = init_type (TYPE_CODE_INT,
304 TARGET_INT_BIT / TARGET_CHAR_BIT,
305 0, "integer*4", objfile);
307 case FT_SIGNED_INTEGER:
308 type = init_type (TYPE_CODE_INT,
309 TARGET_INT_BIT / TARGET_CHAR_BIT,
310 0, "integer", objfile); /* FIXME -fnf */
312 case FT_UNSIGNED_INTEGER:
313 type = init_type (TYPE_CODE_BOOL,
314 TARGET_INT_BIT / TARGET_CHAR_BIT,
315 TYPE_FLAG_UNSIGNED, "logical*4", objfile);
317 case FT_FIXED_DECIMAL:
318 type = init_type (TYPE_CODE_INT,
319 TARGET_INT_BIT / TARGET_CHAR_BIT,
320 0, "fixed decimal", objfile);
323 type = init_type (TYPE_CODE_INT,
324 TARGET_LONG_BIT / TARGET_CHAR_BIT,
328 type = init_type (TYPE_CODE_INT,
329 TARGET_LONG_BIT / TARGET_CHAR_BIT,
330 0, "long", objfile); /* FIXME -fnf */
332 case FT_UNSIGNED_LONG:
333 type = init_type (TYPE_CODE_INT,
334 TARGET_LONG_BIT / TARGET_CHAR_BIT,
335 TYPE_FLAG_UNSIGNED, "unsigned long", objfile);
338 type = init_type (TYPE_CODE_INT,
339 TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT,
340 0, "long long", objfile);
342 case FT_SIGNED_LONG_LONG:
343 type = init_type (TYPE_CODE_INT,
344 TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT,
345 0, "signed long long", objfile);
347 case FT_UNSIGNED_LONG_LONG:
348 type = init_type (TYPE_CODE_INT,
349 TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT,
350 TYPE_FLAG_UNSIGNED, "unsigned long long", objfile);
353 type = init_type (TYPE_CODE_FLT,
354 TARGET_FLOAT_BIT / TARGET_CHAR_BIT,
357 case FT_DBL_PREC_FLOAT:
358 type = init_type (TYPE_CODE_FLT,
359 TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
360 0, "real*8", objfile);
362 case FT_FLOAT_DECIMAL:
363 type = init_type (TYPE_CODE_FLT,
364 TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
365 0, "floating decimal", objfile);
367 case FT_EXT_PREC_FLOAT:
368 type = init_type (TYPE_CODE_FLT,
369 TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT,
370 0, "real*16", objfile);
373 type = init_type (TYPE_CODE_COMPLEX,
374 2 * TARGET_FLOAT_BIT / TARGET_CHAR_BIT,
375 0, "complex*8", objfile);
376 TYPE_TARGET_TYPE (type) = builtin_type_f_real;
378 case FT_DBL_PREC_COMPLEX:
379 type = init_type (TYPE_CODE_COMPLEX,
380 2 * TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
381 0, "complex*16", objfile);
382 TYPE_TARGET_TYPE (type) = builtin_type_f_real_s8;
384 case FT_EXT_PREC_COMPLEX:
385 type = init_type (TYPE_CODE_COMPLEX,
386 2 * TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT,
387 0, "complex*32", objfile);
388 TYPE_TARGET_TYPE (type) = builtin_type_f_real_s16;
391 /* FIXME: For now, if we are asked to produce a type not in this
392 language, create the equivalent of a C integer type with the
393 name "<?type?>". When all the dust settles from the type
394 reconstruction work, this should probably become an error. */
395 type = init_type (TYPE_CODE_INT,
396 TARGET_INT_BIT / TARGET_CHAR_BIT,
397 0, "<?type?>", objfile);
398 warning ("internal error: no F77 fundamental type %d", typeid);
405 /* Table of operators and their precedences for printing expressions. */
407 static const struct op_print f_op_print_tab[] =
409 {"+", BINOP_ADD, PREC_ADD, 0},
410 {"+", UNOP_PLUS, PREC_PREFIX, 0},
411 {"-", BINOP_SUB, PREC_ADD, 0},
412 {"-", UNOP_NEG, PREC_PREFIX, 0},
413 {"*", BINOP_MUL, PREC_MUL, 0},
414 {"/", BINOP_DIV, PREC_MUL, 0},
415 {"DIV", BINOP_INTDIV, PREC_MUL, 0},
416 {"MOD", BINOP_REM, PREC_MUL, 0},
417 {"=", BINOP_ASSIGN, PREC_ASSIGN, 1},
418 {".OR.", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0},
419 {".AND.", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0},
420 {".NOT.", UNOP_LOGICAL_NOT, PREC_PREFIX, 0},
421 {".EQ.", BINOP_EQUAL, PREC_EQUAL, 0},
422 {".NE.", BINOP_NOTEQUAL, PREC_EQUAL, 0},
423 {".LE.", BINOP_LEQ, PREC_ORDER, 0},
424 {".GE.", BINOP_GEQ, PREC_ORDER, 0},
425 {".GT.", BINOP_GTR, PREC_ORDER, 0},
426 {".LT.", BINOP_LESS, PREC_ORDER, 0},
427 {"**", UNOP_IND, PREC_PREFIX, 0},
428 {"@", BINOP_REPEAT, PREC_REPEAT, 0},
432 struct type **const (f_builtin_types[]) =
434 &builtin_type_f_character,
435 &builtin_type_f_logical,
436 &builtin_type_f_logical_s1,
437 &builtin_type_f_logical_s2,
438 &builtin_type_f_integer,
439 &builtin_type_f_integer_s2,
440 &builtin_type_f_real,
441 &builtin_type_f_real_s8,
442 &builtin_type_f_real_s16,
443 &builtin_type_f_complex_s8,
444 &builtin_type_f_complex_s16,
446 &builtin_type_f_complex_s32,
448 &builtin_type_f_void,
452 /* This is declared in c-lang.h but it is silly to import that file for what
453 is already just a hack. */
454 extern int c_value_print (struct value *, struct ui_file *, int,
455 enum val_prettyprint);
457 const struct language_defn f_language_defn =
465 f_parse, /* parser */
466 f_error, /* parser error function */
467 evaluate_subexp_standard,
468 f_printchar, /* Print character constant */
469 f_printstr, /* function to print string constant */
470 f_emit_char, /* Function to print a single character */
471 f_create_fundamental_type, /* Create fundamental type in this language */
472 f_print_type, /* Print a type using appropriate syntax */
473 f_val_print, /* Print a value using appropriate syntax */
474 c_value_print, /* FIXME */
475 NULL, /* Language specific skip_trampoline */
476 NULL, /* Language specific symbol demangler */
477 {"", "", "", ""}, /* Binary format info */
478 {"0%o", "0", "o", ""}, /* Octal format info */
479 {"%d", "", "d", ""}, /* Decimal format info */
480 {"0x%x", "0x", "x", ""}, /* Hex format info */
481 f_op_print_tab, /* expression operators for printing */
482 0, /* arrays are first-class (not c-style) */
483 1, /* String lower bound */
484 &builtin_type_f_character, /* Type of string elements */
489 build_fortran_types (void)
491 builtin_type_f_void =
492 init_type (TYPE_CODE_VOID, 1,
494 "VOID", (struct objfile *) NULL);
496 builtin_type_f_character =
497 init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
499 "character", (struct objfile *) NULL);
501 builtin_type_f_logical_s1 =
502 init_type (TYPE_CODE_BOOL, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
504 "logical*1", (struct objfile *) NULL);
506 builtin_type_f_integer_s2 =
507 init_type (TYPE_CODE_INT, TARGET_SHORT_BIT / TARGET_CHAR_BIT,
509 "integer*2", (struct objfile *) NULL);
511 builtin_type_f_logical_s2 =
512 init_type (TYPE_CODE_BOOL, TARGET_SHORT_BIT / TARGET_CHAR_BIT,
514 "logical*2", (struct objfile *) NULL);
516 builtin_type_f_integer =
517 init_type (TYPE_CODE_INT, TARGET_INT_BIT / TARGET_CHAR_BIT,
519 "integer", (struct objfile *) NULL);
521 builtin_type_f_logical =
522 init_type (TYPE_CODE_BOOL, TARGET_INT_BIT / TARGET_CHAR_BIT,
524 "logical*4", (struct objfile *) NULL);
526 builtin_type_f_real =
527 init_type (TYPE_CODE_FLT, TARGET_FLOAT_BIT / TARGET_CHAR_BIT,
529 "real", (struct objfile *) NULL);
531 builtin_type_f_real_s8 =
532 init_type (TYPE_CODE_FLT, TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
534 "real*8", (struct objfile *) NULL);
536 builtin_type_f_real_s16 =
537 init_type (TYPE_CODE_FLT, TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT,
539 "real*16", (struct objfile *) NULL);
541 builtin_type_f_complex_s8 =
542 init_type (TYPE_CODE_COMPLEX, 2 * TARGET_FLOAT_BIT / TARGET_CHAR_BIT,
544 "complex*8", (struct objfile *) NULL);
545 TYPE_TARGET_TYPE (builtin_type_f_complex_s8) = builtin_type_f_real;
547 builtin_type_f_complex_s16 =
548 init_type (TYPE_CODE_COMPLEX, 2 * TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
550 "complex*16", (struct objfile *) NULL);
551 TYPE_TARGET_TYPE (builtin_type_f_complex_s16) = builtin_type_f_real_s8;
553 /* We have a new size == 4 double floats for the
554 complex*32 data type */
556 builtin_type_f_complex_s32 =
557 init_type (TYPE_CODE_COMPLEX, 2 * TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT,
559 "complex*32", (struct objfile *) NULL);
560 TYPE_TARGET_TYPE (builtin_type_f_complex_s32) = builtin_type_f_real_s16;
564 _initialize_f_language (void)
566 build_fortran_types ();
567 register_gdbarch_swap (&builtin_type_f_character,
568 sizeof (struct type *), NULL);
569 register_gdbarch_swap (&builtin_type_f_logical,
570 sizeof (struct type *), NULL);
571 register_gdbarch_swap (&builtin_type_f_logical_s1,
572 sizeof (struct type *), NULL);
573 register_gdbarch_swap (&builtin_type_f_logical_s2,
574 sizeof (struct type *), NULL);
575 register_gdbarch_swap (&builtin_type_f_integer,
576 sizeof (struct type *), NULL);
577 register_gdbarch_swap (&builtin_type_f_integer_s2,
578 sizeof (struct type *), NULL);
579 register_gdbarch_swap (&builtin_type_f_real,
580 sizeof (struct type *), NULL);
581 register_gdbarch_swap (&builtin_type_f_real_s8,
582 sizeof (struct type *), NULL);
583 register_gdbarch_swap (&builtin_type_f_real_s16,
584 sizeof (struct type *), NULL);
585 register_gdbarch_swap (&builtin_type_f_complex_s8,
586 sizeof (struct type *), NULL);
587 register_gdbarch_swap (&builtin_type_f_complex_s16,
588 sizeof (struct type *), NULL);
589 register_gdbarch_swap (&builtin_type_f_complex_s32,
590 sizeof (struct type *), NULL);
591 register_gdbarch_swap (&builtin_type_f_void,
592 sizeof (struct type *), NULL);
593 register_gdbarch_swap (&builtin_type_string,
594 sizeof (struct type *), NULL);
596 register_gdbarch_swap (NULL, 0, build_fortran_types);
598 builtin_type_string =
599 init_type (TYPE_CODE_STRING, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
601 "character string", (struct objfile *) NULL);
603 add_language (&f_language_defn);
608 allocate_saved_bf_node (void)
612 new = (SAVED_BF_PTR) xmalloc (sizeof (SAVED_BF));
616 static SAVED_FUNCTION *
617 allocate_saved_function_node (void)
621 new = (SAVED_FUNCTION *) xmalloc (sizeof (SAVED_FUNCTION));
625 static SAVED_F77_COMMON_PTR
626 allocate_saved_f77_common_node (void)
628 SAVED_F77_COMMON_PTR new;
630 new = (SAVED_F77_COMMON_PTR) xmalloc (sizeof (SAVED_F77_COMMON));
634 static COMMON_ENTRY_PTR
635 allocate_common_entry_node (void)
637 COMMON_ENTRY_PTR new;
639 new = (COMMON_ENTRY_PTR) xmalloc (sizeof (COMMON_ENTRY));
644 SAVED_F77_COMMON_PTR head_common_list = NULL; /* Ptr to 1st saved COMMON */
645 SAVED_F77_COMMON_PTR tail_common_list = NULL; /* Ptr to last saved COMMON */
646 SAVED_F77_COMMON_PTR current_common = NULL; /* Ptr to current COMMON */
649 static SAVED_BF_PTR saved_bf_list = NULL; /* Ptr to (.bf,function)
651 static SAVED_BF_PTR saved_bf_list_end = NULL; /* Ptr to above list's end */
652 static SAVED_BF_PTR current_head_bf_list = NULL; /* Current head of above list
655 static SAVED_BF_PTR tmp_bf_ptr; /* Generic temporary for use
658 /* The following function simply enters a given common block onto
659 the global common block chain */
662 add_common_block (char *name, CORE_ADDR offset, int secnum, char *func_stab)
664 SAVED_F77_COMMON_PTR tmp;
665 char *c, *local_copy_func_stab;
667 /* If the COMMON block we are trying to add has a blank
668 name (i.e. "#BLNK_COM") then we set it to __BLANK
669 because the darn "#" character makes GDB's input
673 if (STREQ (name, BLANK_COMMON_NAME_ORIGINAL) ||
674 STREQ (name, BLANK_COMMON_NAME_MF77))
678 name = alloca (strlen (BLANK_COMMON_NAME_LOCAL) + 1);
679 strcpy (name, BLANK_COMMON_NAME_LOCAL);
682 tmp = allocate_saved_f77_common_node ();
684 local_copy_func_stab = xmalloc (strlen (func_stab) + 1);
685 strcpy (local_copy_func_stab, func_stab);
687 tmp->name = xmalloc (strlen (name) + 1);
689 /* local_copy_func_stab is a stabstring, let us first extract the
690 function name from the stab by NULLing out the ':' character. */
694 c = strchr (local_copy_func_stab, ':');
699 error ("Malformed function STAB found in add_common_block()");
702 tmp->owning_function = xmalloc (strlen (local_copy_func_stab) + 1);
704 strcpy (tmp->owning_function, local_copy_func_stab);
706 strcpy (tmp->name, name);
707 tmp->offset = offset;
710 tmp->secnum = secnum;
712 current_common = tmp;
714 if (head_common_list == NULL)
716 head_common_list = tail_common_list = tmp;
720 tail_common_list->next = tmp;
721 tail_common_list = tmp;
726 /* The following function simply enters a given common entry onto
727 the "current_common" block that has been saved away. */
731 add_common_entry (struct symbol *entry_sym_ptr)
733 COMMON_ENTRY_PTR tmp;
737 /* The order of this list is important, since
738 we expect the entries to appear in decl.
739 order when we later issue "info common" calls */
741 tmp = allocate_common_entry_node ();
744 tmp->symbol = entry_sym_ptr;
746 if (current_common == NULL)
747 error ("Attempt to add COMMON entry with no block open!");
750 if (current_common->entries == NULL)
752 current_common->entries = tmp;
753 current_common->end_of_entries = tmp;
757 current_common->end_of_entries->next = tmp;
758 current_common->end_of_entries = tmp;
764 /* This routine finds the first encountred COMMON block named "name" */
767 static SAVED_F77_COMMON_PTR
768 find_first_common_named (char *name)
771 SAVED_F77_COMMON_PTR tmp;
773 tmp = head_common_list;
777 if (STREQ (tmp->name, name))
786 /* This routine finds the first encountred COMMON block named "name"
787 that belongs to function funcname */
790 find_common_for_function (char *name, char *funcname)
793 SAVED_F77_COMMON_PTR tmp;
795 tmp = head_common_list;
799 if (STREQ (tmp->name, name) && STREQ (tmp->owning_function, funcname))
810 /* The following function is called to patch up the offsets
811 for the statics contained in the COMMON block named
815 patch_common_entries (SAVED_F77_COMMON_PTR blk, CORE_ADDR offset, int secnum)
817 COMMON_ENTRY_PTR entry;
819 blk->offset = offset; /* Keep this around for future use. */
821 entry = blk->entries;
823 while (entry != NULL)
825 SYMBOL_VALUE (entry->symbol) += offset;
826 SYMBOL_SECTION (entry->symbol) = secnum;
830 blk->secnum = secnum;
833 /* Patch all commons named "name" that need patching.Since COMMON
834 blocks occur with relative infrequency, we simply do a linear scan on
835 the name. Eventually, the best way to do this will be a
836 hashed-lookup. Secnum is the section number for the .bss section
837 (which is where common data lives). */
840 patch_all_commons_by_name (char *name, CORE_ADDR offset, int secnum)
843 SAVED_F77_COMMON_PTR tmp;
845 /* For blank common blocks, change the canonical reprsentation
848 if ((STREQ (name, BLANK_COMMON_NAME_ORIGINAL)) ||
849 (STREQ (name, BLANK_COMMON_NAME_MF77)))
852 name = alloca (strlen (BLANK_COMMON_NAME_LOCAL) + 1);
853 strcpy (name, BLANK_COMMON_NAME_LOCAL);
856 tmp = head_common_list;
860 if (COMMON_NEEDS_PATCHING (tmp))
861 if (STREQ (tmp->name, name))
862 patch_common_entries (tmp, offset, secnum);
869 /* This macro adds the symbol-number for the start of the function
870 (the symbol number of the .bf) referenced by symnum_fcn to a
871 list. This list, in reality should be a FIFO queue but since
872 #line pragmas sometimes cause line ranges to get messed up
873 we simply create a linear list. This list can then be searched
874 first by a queueing algorithm and upon failure fall back to
878 #define ADD_BF_SYMNUM(bf_sym,fcn_sym) \
880 if (saved_bf_list == NULL) \
882 tmp_bf_ptr = allocate_saved_bf_node(); \
884 tmp_bf_ptr->symnum_bf = (bf_sym); \
885 tmp_bf_ptr->symnum_fcn = (fcn_sym); \
886 tmp_bf_ptr->next = NULL; \
888 current_head_bf_list = saved_bf_list = tmp_bf_ptr; \
889 saved_bf_list_end = tmp_bf_ptr; \
893 tmp_bf_ptr = allocate_saved_bf_node(); \
895 tmp_bf_ptr->symnum_bf = (bf_sym); \
896 tmp_bf_ptr->symnum_fcn = (fcn_sym); \
897 tmp_bf_ptr->next = NULL; \
899 saved_bf_list_end->next = tmp_bf_ptr; \
900 saved_bf_list_end = tmp_bf_ptr; \
904 /* This function frees the entire (.bf,function) list */
911 SAVED_BF_PTR tmp = saved_bf_list;
912 SAVED_BF_PTR next = NULL;
920 saved_bf_list = NULL;
924 int global_remote_debug;
929 get_bf_for_fcn (long the_function)
934 /* First use a simple queuing algorithm (i.e. look and see if the
935 item at the head of the queue is the one you want) */
937 if (saved_bf_list == NULL)
938 internal_error (__FILE__, __LINE__,
939 "cannot get .bf node off empty list");
941 if (current_head_bf_list != NULL)
942 if (current_head_bf_list->symnum_fcn == the_function)
944 if (global_remote_debug)
945 fprintf_unfiltered (gdb_stderr, "*");
947 tmp = current_head_bf_list;
948 current_head_bf_list = current_head_bf_list->next;
949 return (tmp->symnum_bf);
952 /* If the above did not work (probably because #line directives were
953 used in the sourcefile and they messed up our internal tables) we now do
954 the ugly linear scan */
956 if (global_remote_debug)
957 fprintf_unfiltered (gdb_stderr, "\ndefaulting to linear scan\n");
964 if (tmp->symnum_fcn == the_function)
966 if (global_remote_debug)
967 fprintf_unfiltered (gdb_stderr, "Found in %d probes\n", nprobes);
968 current_head_bf_list = tmp->next;
969 return (tmp->symnum_bf);
977 static SAVED_FUNCTION_PTR saved_function_list = NULL;
978 static SAVED_FUNCTION_PTR saved_function_list_end = NULL;
981 clear_function_list (void)
983 SAVED_FUNCTION_PTR tmp = saved_function_list;
984 SAVED_FUNCTION_PTR next = NULL;
993 saved_function_list = NULL;