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"
35 /* The built-in types of F77. FIXME: integer*4 is missing, plain
36 logical is missing (builtin_type_logical is logical*4). */
38 struct type
*builtin_type_f_character
;
39 struct type
*builtin_type_f_logical
;
40 struct type
*builtin_type_f_logical_s1
;
41 struct type
*builtin_type_f_logical_s2
;
42 struct type
*builtin_type_f_integer
;
43 struct type
*builtin_type_f_integer_s2
;
44 struct type
*builtin_type_f_real
;
45 struct type
*builtin_type_f_real_s8
;
46 struct type
*builtin_type_f_real_s16
;
47 struct type
*builtin_type_f_complex_s8
;
48 struct type
*builtin_type_f_complex_s16
;
49 struct type
*builtin_type_f_complex_s32
;
50 struct type
*builtin_type_f_void
;
52 /* Following is dubious stuff that had been in the xcoff reader. */
56 long line_offset
; /* Line offset for function */
57 struct saved_fcn
*next
;
61 struct saved_bf_symnum
63 long symnum_fcn
; /* Symnum of function (i.e. .function directive) */
64 long symnum_bf
; /* Symnum of .bf for this function */
65 struct saved_bf_symnum
*next
;
68 typedef struct saved_fcn SAVED_FUNCTION
, *SAVED_FUNCTION_PTR
;
69 typedef struct saved_bf_symnum SAVED_BF
, *SAVED_BF_PTR
;
73 extern void _initialize_f_language (void);
75 static void clear_function_list (void);
76 static long get_bf_for_fcn (long);
77 static void clear_bf_list (void);
78 static void patch_all_commons_by_name (char *, CORE_ADDR
, int);
79 static SAVED_F77_COMMON_PTR
find_first_common_named (char *);
80 static void add_common_entry (struct symbol
*);
81 static void add_common_block (char *, CORE_ADDR
, int, char *);
82 static SAVED_FUNCTION
*allocate_saved_function_node (void);
83 static SAVED_BF_PTR
allocate_saved_bf_node (void);
84 static COMMON_ENTRY_PTR
allocate_common_entry_node (void);
85 static SAVED_F77_COMMON_PTR
allocate_saved_f77_common_node (void);
86 static void patch_common_entries (SAVED_F77_COMMON_PTR
, CORE_ADDR
, int);
89 static struct type
*f_create_fundamental_type (struct objfile
*, int);
90 static void f_printstr (struct ui_file
* stream
, char *string
,
91 unsigned int length
, int width
,
93 static void f_printchar (int c
, struct ui_file
* stream
);
94 static void f_emit_char (int c
, struct ui_file
* stream
, int quoter
);
96 /* Print the character C on STREAM as part of the contents of a literal
97 string whose delimiter is QUOTER. Note that that format for printing
98 characters and strings is language specific.
99 FIXME: This is a copy of the same function from c-exp.y. It should
100 be replaced with a true F77 version. */
103 f_emit_char (register int c
, struct ui_file
*stream
, int quoter
)
105 c
&= 0xFF; /* Avoid sign bit follies */
107 if (PRINT_LITERAL_FORM (c
))
109 if (c
== '\\' || c
== quoter
)
110 fputs_filtered ("\\", stream
);
111 fprintf_filtered (stream
, "%c", c
);
118 fputs_filtered ("\\n", stream
);
121 fputs_filtered ("\\b", stream
);
124 fputs_filtered ("\\t", stream
);
127 fputs_filtered ("\\f", stream
);
130 fputs_filtered ("\\r", stream
);
133 fputs_filtered ("\\e", stream
);
136 fputs_filtered ("\\a", stream
);
139 fprintf_filtered (stream
, "\\%.3o", (unsigned int) c
);
145 /* FIXME: This is a copy of the same function from c-exp.y. It should
146 be replaced with a true F77version. */
149 f_printchar (int c
, struct ui_file
*stream
)
151 fputs_filtered ("'", stream
);
152 LA_EMIT_CHAR (c
, stream
, '\'');
153 fputs_filtered ("'", stream
);
156 /* Print the character string STRING, printing at most LENGTH characters.
157 Printing stops early if the number hits print_max; repeat counts
158 are printed as appropriate. Print ellipses at the end if we
159 had to stop before printing LENGTH characters, or if FORCE_ELLIPSES.
160 FIXME: This is a copy of the same function from c-exp.y. It should
161 be replaced with a true F77 version. */
164 f_printstr (struct ui_file
*stream
, char *string
, unsigned int length
,
165 int width
, int force_ellipses
)
167 register unsigned int i
;
168 unsigned int things_printed
= 0;
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 value_of_this
, /* value_of_this */
477 basic_lookup_symbol_nonlocal
, /* lookup_symbol_nonlocal */
478 NULL
, /* Language specific symbol demangler */
479 {"", "", "", ""}, /* Binary format info */
480 {"0%o", "0", "o", ""}, /* Octal format info */
481 {"%d", "", "d", ""}, /* Decimal format info */
482 {"0x%x", "0x", "x", ""}, /* Hex format info */
483 f_op_print_tab
, /* expression operators for printing */
484 0, /* arrays are first-class (not c-style) */
485 1, /* String lower bound */
486 &builtin_type_f_character
, /* Type of string elements */
491 build_fortran_types (void)
493 builtin_type_f_void
=
494 init_type (TYPE_CODE_VOID
, 1,
496 "VOID", (struct objfile
*) NULL
);
498 builtin_type_f_character
=
499 init_type (TYPE_CODE_INT
, TARGET_CHAR_BIT
/ TARGET_CHAR_BIT
,
501 "character", (struct objfile
*) NULL
);
503 builtin_type_f_logical_s1
=
504 init_type (TYPE_CODE_BOOL
, TARGET_CHAR_BIT
/ TARGET_CHAR_BIT
,
506 "logical*1", (struct objfile
*) NULL
);
508 builtin_type_f_integer_s2
=
509 init_type (TYPE_CODE_INT
, TARGET_SHORT_BIT
/ TARGET_CHAR_BIT
,
511 "integer*2", (struct objfile
*) NULL
);
513 builtin_type_f_logical_s2
=
514 init_type (TYPE_CODE_BOOL
, TARGET_SHORT_BIT
/ TARGET_CHAR_BIT
,
516 "logical*2", (struct objfile
*) NULL
);
518 builtin_type_f_integer
=
519 init_type (TYPE_CODE_INT
, TARGET_INT_BIT
/ TARGET_CHAR_BIT
,
521 "integer", (struct objfile
*) NULL
);
523 builtin_type_f_logical
=
524 init_type (TYPE_CODE_BOOL
, TARGET_INT_BIT
/ TARGET_CHAR_BIT
,
526 "logical*4", (struct objfile
*) NULL
);
528 builtin_type_f_real
=
529 init_type (TYPE_CODE_FLT
, TARGET_FLOAT_BIT
/ TARGET_CHAR_BIT
,
531 "real", (struct objfile
*) NULL
);
533 builtin_type_f_real_s8
=
534 init_type (TYPE_CODE_FLT
, TARGET_DOUBLE_BIT
/ TARGET_CHAR_BIT
,
536 "real*8", (struct objfile
*) NULL
);
538 builtin_type_f_real_s16
=
539 init_type (TYPE_CODE_FLT
, TARGET_LONG_DOUBLE_BIT
/ TARGET_CHAR_BIT
,
541 "real*16", (struct objfile
*) NULL
);
543 builtin_type_f_complex_s8
=
544 init_type (TYPE_CODE_COMPLEX
, 2 * TARGET_FLOAT_BIT
/ TARGET_CHAR_BIT
,
546 "complex*8", (struct objfile
*) NULL
);
547 TYPE_TARGET_TYPE (builtin_type_f_complex_s8
) = builtin_type_f_real
;
549 builtin_type_f_complex_s16
=
550 init_type (TYPE_CODE_COMPLEX
, 2 * TARGET_DOUBLE_BIT
/ TARGET_CHAR_BIT
,
552 "complex*16", (struct objfile
*) NULL
);
553 TYPE_TARGET_TYPE (builtin_type_f_complex_s16
) = builtin_type_f_real_s8
;
555 /* We have a new size == 4 double floats for the
556 complex*32 data type */
558 builtin_type_f_complex_s32
=
559 init_type (TYPE_CODE_COMPLEX
, 2 * TARGET_LONG_DOUBLE_BIT
/ TARGET_CHAR_BIT
,
561 "complex*32", (struct objfile
*) NULL
);
562 TYPE_TARGET_TYPE (builtin_type_f_complex_s32
) = builtin_type_f_real_s16
;
566 _initialize_f_language (void)
568 build_fortran_types ();
569 register_gdbarch_swap (&builtin_type_f_character
,
570 sizeof (struct type
*), NULL
);
571 register_gdbarch_swap (&builtin_type_f_logical
,
572 sizeof (struct type
*), NULL
);
573 register_gdbarch_swap (&builtin_type_f_logical_s1
,
574 sizeof (struct type
*), NULL
);
575 register_gdbarch_swap (&builtin_type_f_logical_s2
,
576 sizeof (struct type
*), NULL
);
577 register_gdbarch_swap (&builtin_type_f_integer
,
578 sizeof (struct type
*), NULL
);
579 register_gdbarch_swap (&builtin_type_f_integer_s2
,
580 sizeof (struct type
*), NULL
);
581 register_gdbarch_swap (&builtin_type_f_real
,
582 sizeof (struct type
*), NULL
);
583 register_gdbarch_swap (&builtin_type_f_real_s8
,
584 sizeof (struct type
*), NULL
);
585 register_gdbarch_swap (&builtin_type_f_real_s16
,
586 sizeof (struct type
*), NULL
);
587 register_gdbarch_swap (&builtin_type_f_complex_s8
,
588 sizeof (struct type
*), NULL
);
589 register_gdbarch_swap (&builtin_type_f_complex_s16
,
590 sizeof (struct type
*), NULL
);
591 register_gdbarch_swap (&builtin_type_f_complex_s32
,
592 sizeof (struct type
*), NULL
);
593 register_gdbarch_swap (&builtin_type_f_void
,
594 sizeof (struct type
*), NULL
);
595 register_gdbarch_swap (&builtin_type_string
,
596 sizeof (struct type
*), NULL
);
598 register_gdbarch_swap (NULL
, 0, build_fortran_types
);
600 builtin_type_string
=
601 init_type (TYPE_CODE_STRING
, TARGET_CHAR_BIT
/ TARGET_CHAR_BIT
,
603 "character string", (struct objfile
*) NULL
);
605 add_language (&f_language_defn
);
610 allocate_saved_bf_node (void)
614 new = (SAVED_BF_PTR
) xmalloc (sizeof (SAVED_BF
));
618 static SAVED_FUNCTION
*
619 allocate_saved_function_node (void)
623 new = (SAVED_FUNCTION
*) xmalloc (sizeof (SAVED_FUNCTION
));
627 static SAVED_F77_COMMON_PTR
628 allocate_saved_f77_common_node (void)
630 SAVED_F77_COMMON_PTR
new;
632 new = (SAVED_F77_COMMON_PTR
) xmalloc (sizeof (SAVED_F77_COMMON
));
636 static COMMON_ENTRY_PTR
637 allocate_common_entry_node (void)
639 COMMON_ENTRY_PTR
new;
641 new = (COMMON_ENTRY_PTR
) xmalloc (sizeof (COMMON_ENTRY
));
646 SAVED_F77_COMMON_PTR head_common_list
= NULL
; /* Ptr to 1st saved COMMON */
647 SAVED_F77_COMMON_PTR tail_common_list
= NULL
; /* Ptr to last saved COMMON */
648 SAVED_F77_COMMON_PTR current_common
= NULL
; /* Ptr to current COMMON */
651 static SAVED_BF_PTR saved_bf_list
= NULL
; /* Ptr to (.bf,function)
653 static SAVED_BF_PTR saved_bf_list_end
= NULL
; /* Ptr to above list's end */
654 static SAVED_BF_PTR current_head_bf_list
= NULL
; /* Current head of above list
657 static SAVED_BF_PTR tmp_bf_ptr
; /* Generic temporary for use
660 /* The following function simply enters a given common block onto
661 the global common block chain */
664 add_common_block (char *name
, CORE_ADDR offset
, int secnum
, char *func_stab
)
666 SAVED_F77_COMMON_PTR tmp
;
667 char *c
, *local_copy_func_stab
;
669 /* If the COMMON block we are trying to add has a blank
670 name (i.e. "#BLNK_COM") then we set it to __BLANK
671 because the darn "#" character makes GDB's input
675 if (STREQ (name
, BLANK_COMMON_NAME_ORIGINAL
) ||
676 STREQ (name
, BLANK_COMMON_NAME_MF77
))
680 name
= alloca (strlen (BLANK_COMMON_NAME_LOCAL
) + 1);
681 strcpy (name
, BLANK_COMMON_NAME_LOCAL
);
684 tmp
= allocate_saved_f77_common_node ();
686 local_copy_func_stab
= xmalloc (strlen (func_stab
) + 1);
687 strcpy (local_copy_func_stab
, func_stab
);
689 tmp
->name
= xmalloc (strlen (name
) + 1);
691 /* local_copy_func_stab is a stabstring, let us first extract the
692 function name from the stab by NULLing out the ':' character. */
696 c
= strchr (local_copy_func_stab
, ':');
701 error ("Malformed function STAB found in add_common_block()");
704 tmp
->owning_function
= xmalloc (strlen (local_copy_func_stab
) + 1);
706 strcpy (tmp
->owning_function
, local_copy_func_stab
);
708 strcpy (tmp
->name
, name
);
709 tmp
->offset
= offset
;
712 tmp
->secnum
= secnum
;
714 current_common
= tmp
;
716 if (head_common_list
== NULL
)
718 head_common_list
= tail_common_list
= tmp
;
722 tail_common_list
->next
= tmp
;
723 tail_common_list
= tmp
;
728 /* The following function simply enters a given common entry onto
729 the "current_common" block that has been saved away. */
733 add_common_entry (struct symbol
*entry_sym_ptr
)
735 COMMON_ENTRY_PTR tmp
;
739 /* The order of this list is important, since
740 we expect the entries to appear in decl.
741 order when we later issue "info common" calls */
743 tmp
= allocate_common_entry_node ();
746 tmp
->symbol
= entry_sym_ptr
;
748 if (current_common
== NULL
)
749 error ("Attempt to add COMMON entry with no block open!");
752 if (current_common
->entries
== NULL
)
754 current_common
->entries
= tmp
;
755 current_common
->end_of_entries
= tmp
;
759 current_common
->end_of_entries
->next
= tmp
;
760 current_common
->end_of_entries
= tmp
;
766 /* This routine finds the first encountred COMMON block named "name" */
769 static SAVED_F77_COMMON_PTR
770 find_first_common_named (char *name
)
773 SAVED_F77_COMMON_PTR tmp
;
775 tmp
= head_common_list
;
779 if (STREQ (tmp
->name
, name
))
788 /* This routine finds the first encountred COMMON block named "name"
789 that belongs to function funcname */
792 find_common_for_function (char *name
, char *funcname
)
795 SAVED_F77_COMMON_PTR tmp
;
797 tmp
= head_common_list
;
801 if (STREQ (tmp
->name
, name
) && STREQ (tmp
->owning_function
, funcname
))
812 /* The following function is called to patch up the offsets
813 for the statics contained in the COMMON block named
817 patch_common_entries (SAVED_F77_COMMON_PTR blk
, CORE_ADDR offset
, int secnum
)
819 COMMON_ENTRY_PTR entry
;
821 blk
->offset
= offset
; /* Keep this around for future use. */
823 entry
= blk
->entries
;
825 while (entry
!= NULL
)
827 SYMBOL_VALUE (entry
->symbol
) += offset
;
828 SYMBOL_SECTION (entry
->symbol
) = secnum
;
832 blk
->secnum
= secnum
;
835 /* Patch all commons named "name" that need patching.Since COMMON
836 blocks occur with relative infrequency, we simply do a linear scan on
837 the name. Eventually, the best way to do this will be a
838 hashed-lookup. Secnum is the section number for the .bss section
839 (which is where common data lives). */
842 patch_all_commons_by_name (char *name
, CORE_ADDR offset
, int secnum
)
845 SAVED_F77_COMMON_PTR tmp
;
847 /* For blank common blocks, change the canonical reprsentation
850 if ((STREQ (name
, BLANK_COMMON_NAME_ORIGINAL
)) ||
851 (STREQ (name
, BLANK_COMMON_NAME_MF77
)))
854 name
= alloca (strlen (BLANK_COMMON_NAME_LOCAL
) + 1);
855 strcpy (name
, BLANK_COMMON_NAME_LOCAL
);
858 tmp
= head_common_list
;
862 if (COMMON_NEEDS_PATCHING (tmp
))
863 if (STREQ (tmp
->name
, name
))
864 patch_common_entries (tmp
, offset
, secnum
);
871 /* This macro adds the symbol-number for the start of the function
872 (the symbol number of the .bf) referenced by symnum_fcn to a
873 list. This list, in reality should be a FIFO queue but since
874 #line pragmas sometimes cause line ranges to get messed up
875 we simply create a linear list. This list can then be searched
876 first by a queueing algorithm and upon failure fall back to
880 #define ADD_BF_SYMNUM(bf_sym,fcn_sym) \
882 if (saved_bf_list == NULL) \
884 tmp_bf_ptr = allocate_saved_bf_node(); \
886 tmp_bf_ptr->symnum_bf = (bf_sym); \
887 tmp_bf_ptr->symnum_fcn = (fcn_sym); \
888 tmp_bf_ptr->next = NULL; \
890 current_head_bf_list = saved_bf_list = tmp_bf_ptr; \
891 saved_bf_list_end = tmp_bf_ptr; \
895 tmp_bf_ptr = allocate_saved_bf_node(); \
897 tmp_bf_ptr->symnum_bf = (bf_sym); \
898 tmp_bf_ptr->symnum_fcn = (fcn_sym); \
899 tmp_bf_ptr->next = NULL; \
901 saved_bf_list_end->next = tmp_bf_ptr; \
902 saved_bf_list_end = tmp_bf_ptr; \
906 /* This function frees the entire (.bf,function) list */
913 SAVED_BF_PTR tmp
= saved_bf_list
;
914 SAVED_BF_PTR next
= NULL
;
922 saved_bf_list
= NULL
;
926 int global_remote_debug
;
931 get_bf_for_fcn (long the_function
)
936 /* First use a simple queuing algorithm (i.e. look and see if the
937 item at the head of the queue is the one you want) */
939 if (saved_bf_list
== NULL
)
940 internal_error (__FILE__
, __LINE__
,
941 "cannot get .bf node off empty list");
943 if (current_head_bf_list
!= NULL
)
944 if (current_head_bf_list
->symnum_fcn
== the_function
)
946 if (global_remote_debug
)
947 fprintf_unfiltered (gdb_stderr
, "*");
949 tmp
= current_head_bf_list
;
950 current_head_bf_list
= current_head_bf_list
->next
;
951 return (tmp
->symnum_bf
);
954 /* If the above did not work (probably because #line directives were
955 used in the sourcefile and they messed up our internal tables) we now do
956 the ugly linear scan */
958 if (global_remote_debug
)
959 fprintf_unfiltered (gdb_stderr
, "\ndefaulting to linear scan\n");
966 if (tmp
->symnum_fcn
== the_function
)
968 if (global_remote_debug
)
969 fprintf_unfiltered (gdb_stderr
, "Found in %d probes\n", nprobes
);
970 current_head_bf_list
= tmp
->next
;
971 return (tmp
->symnum_bf
);
979 static SAVED_FUNCTION_PTR saved_function_list
= NULL
;
980 static SAVED_FUNCTION_PTR saved_function_list_end
= NULL
;
983 clear_function_list (void)
985 SAVED_FUNCTION_PTR tmp
= saved_function_list
;
986 SAVED_FUNCTION_PTR next
= NULL
;
995 saved_function_list
= NULL
;